BLD -- 電子萬能拉力試驗機 （液晶顯示）

 一、拉力試驗機是用來對材料進行靜載、拉伸、壓縮、彎曲、剪切、剝離等力學性能試驗用的機械加力的試驗機，適用于塑料板材、管材、異型材，塑料薄膜及橡膠、電線電纜等材料的各種物理機械性能測試為材料開發，為物性試驗、教學研究、質量控制等*的檢測設備，拉力機夾具作為儀器的重要組成部分，不同的材料需要不同的夾具，也是試驗能否順利進行及試驗結果準確度高低的一個重要因素。

二、適用范圍：

BLD系列 液晶顯示電子萬能試驗機滿足GB1040， GB13022，GB17200，GB16491等要求。主要適用于金屬及非金屬材料的測試，如橡膠、塑料、電線電纜、光纖光纜、安全帶、保險帶、皮革皮帶復合材料、塑料型材、防水卷材、鋼管、銅材、型材、彈簧鋼、軸承鋼、不銹鋼（以及其它高硬度鋼）、鑄件、鋼板、鋼帶、有色金屬金屬線材的拉伸、壓縮、彎曲、剪切、剝離、撕裂、兩點延伸（需另配引伸計）等多種試驗. 廣泛應用于計量質檢；橡膠塑料；冶金鋼鐵；機械制造；電子電器；汽車生產；紡織化纖；電線電纜；包裝材料和食品；儀器儀表；科研器械；民用核能；高等院校；科研實驗所；商檢仲裁、技術監督部門；建材陶瓷；石油化工；其它行業。

三、主要特點

采用進口光電編碼器進行位移測量，控制器采用嵌入式單片微機結構，內置功能強大的測控軟件，集測量、控制、計算、存儲功能于一體。具有自動計算應力、延伸率（需加配引伸計）、抗拉強度、彈性模量的功能，自動統計結果；自動記錄zui大點、斷裂點、點的力值或伸長量；采用計算機進行試驗過程及試驗曲線的動態顯示，并進行數據處理，試驗結束后可通過圖形處理模塊對曲線放大進行數據再分析編輯，并可打印報表，產品性能達到先進水平。

四、主要技術指標：

01、zui大試驗力:單柱結構：0-5KN（試驗力大小可根據用戶需求而定）

02、試驗力顯示范圍:0～5KN

03、試驗力分檔：全程不分檔-*/

04、試驗力測量精度:優于示值的±1% 

05、位移分辨率:0.01mm

06、位移測量準確度:優于示值的±1%

07、橫梁移動速度控制范圍:0.05mm/min～300mm/min 

08、位移速度控制精度:優于±1%

09、拉伸行程:0～800mm（不含夾具）

10、外形尺寸（長×寬×高）: 435mm×275mm×1700mm（單柱）

11、供電電源:220V、50Hz

五、配置：

01、高強度主機一臺（單臂式結構）

02、高精度光電編碼器一支

03、全數字調速系統和全數字調速電機各一套

04、精密絲杠副一套

05、精密圓弧同步減速系統一套

06、高精度傳感器一支

07、拉伸輔具一套

08、萬能試驗機控制系統及大液晶顯示器一套

六、功能介紹：

01、速度瞬間切換：試驗過程中可按預先設定的三個速度瞬間切換，以節約試驗時間

02、自動停機：試樣破壞后，移動橫梁自動停止移動

03、顯示方式：試驗過程動態實時顯示試驗力、位移量、試驗速度、峰值、試驗狀態同時實時在同一液晶屏幕上顯示

04、自動返回：試驗完成后試驗機移動橫梁自動返回到試驗初始位置

05、限位保護：具有程控和機械兩級限位保護功能

06、過載保護：當負荷超過額定值的3～5%時設備自動停止工作

07、自動打印：配制微型打印機，可對測試的數據進行打印

北京北廣精儀儀器有限公司是從事專業測量儀器以及相關設備的研發、生產、銷售、于一體是股份企業，并按照現代化經營管理實現企業化經營管理模式走向股份制正規化企業，公

司經過長期發展，現已擁有獨立的研發隊伍并已有海內外專家入注進行產品的研發與設計。

七、故障及解決方法：

一、拉力試驗機加荷時，指針顫動或時走時停

1、離合器齒輪磨損：需要修理或更換。

2、摩擦盤的皮墊圈或彈簧磨損：需更換皮墊圈或彈簧。

3、操縱手柄移位：調整操縱手柄，使其與牙槽配合好。

二、更換擺砣時指針不回零

1、拉力試驗機安裝不水平：用水平儀把試驗機調整水平。

2、擺錘不垂直：只掛A砣。調整平衡砣，使之垂直。

三、拉力試驗機擺錘回位太快或太慢

1、緩沖閥擋位位置放置不當：調整緩沖閥到適當位置。

2、液壓油黏度過低或過高：液壓油黏度過低時擺錘回落快，黏度高時回落慢．應更換適當黏度的液壓油。

3、緩沖閥內、油管內或液壓油有臟污：清洗緩沖閥、油管。更換液壓油。

四、拉力試驗機指針回零滯怠或不穩定

1、指針軸承、主軸軸承銹蝕或有油污：清洗或更換軸承。

2、齒桿變形或齒桿與齒輪不嚙合：校直齒桿或清洗、修整齒輪、槽輪等傳動部件。

3、緩沖閥內有臟污：清洗緩沖閥。

五、拉力試驗機示值正偏差

1、短臂刀刃有松動：把刀刃緊牢。

2、擺砣偏輕：給砣配重（要兼顧A、B、C砣的重量）。

六、示值負偏差zui主要原因是各部件之間的摩擦阻力過大

1、指針軸承、擺軸軸承和測力傳動部件摩擦阻力過大：主要是調整、清洗軸承及測力傳動部件．消除不正常的摩擦阻力。

2、上夾頭、從動針彈簧片松緊度和描繪裝置的摩擦阻力大：調整上夾頭、從動針彈簧片松緊度和描繪裝置部件．消除不正常的摩擦阻力。

3、活塞桿與擺桿相接部位不靈活：調整兩者相接部位。使之靈活自如。

七、從動針滯阻或移位

1、從動針彈簧片彈力大小或從動針與指示盤摩擦阻力大小造成的影響：調整從動針彈簧片的彈力或從動針與指示盤的問隙。

2、從動針兩端重鼉有偏差：調整兩端重量，使其平衡。

八、示值無規律的偏差

1、齒桿、齒輪有油污、磨損或有毛刺：消除齒桿、齒輪的油污、毛刺，找出超差時的齒桿接觸點，然后修正齒桿、齒輪；如不能消除誤差．更換齒桿、齒輪。

2、拉力試驗機試驗機安裝不水平：調整水平。

3、齒桿彎曲：校直或更換齒桿，調整滾動槽輪的問隙。

九、計算機軟件聯機后出現提示框信息顯示超載。

解決方案是檢查計算機與試驗機的通訊線是否脫落;檢查聯機選擇傳感器是否選擇正確;檢查zui近的試驗或操作鍵

盤時傳感器是否被撞過;檢查出現問題之前是否使用了軟件的校準或標定功能;檢查是否手動更改過校準值、標定值或硬件參數中的其他信息。

十、試驗機主機電源不亮，不能上下移動。

解決方案是檢查接入試驗機的電源線路是否連接正常;檢查急停開關是否處于擰起狀態;檢查接入試驗機的電源電壓是否正常;檢查機器插座上的保險是否燒斷，請取出備用保險絲安裝即可。

十一、試驗機主機電源有電但設備不可以上下移動。

解決方案是檢查是否是15S（時間）以后設備還無法移動，因為主機開機需要自檢，大概需要15S時間;檢查上下限位是否再恰當的位置，有一定的運行空間;檢查接入試驗機的電源電壓是否正常

。

八、油源的保養：

   1、定期檢查主機和油源處是否有漏油的地方，如發現有漏油，應及時更換密封圈或組合墊;

   2、根據機器的使用情況及油的使用期限，定期更換吸油過濾器和濾芯，更換液壓油。

   3、長時間不做試驗時，注意關斷主機電源。如果機器在待機狀態，轉換開關應打到“加載”檔，因為如果轉換開關打在“快退”檔，電磁換向閥一直在通電狀態，會影響   該器件的使用壽命。

九、控制系統保養：

  1、定期檢查控制器后面板的連接線是否接觸良好，如有松動，應及時緊固;

   2、試驗后若有一段較長的時間不用機器時，關閉控制器和電腦;

   3、控制器上的接口為一一對應，插錯接口可能對設備造成損壞;

   4、插拔控制器上的接口必須關閉控制器電源。

BLD - electronic universal tensile testing machine （liquid crystal display）

A testing machine, tensile testing machine is used for mechanical loading static load, tensile, compression, bending, shear, stripping and other mechanical properties test of 

the material, suitable for plastic sheet, pipe, profile, all kinds of plastic film and rubber, wire and cable materials such as the physical and mechanical performance test for 

the material development, as the indispensable testing equipment character test, teaching and research, quality control, tensile machine fixture as an important part of the 

instrument, different materials have different fixtures, and test can be an important factor in smoothly and test the accuracy of height.

Two, applicable scope:

BLD series liquid crystal display electronic universal testing machine to meet the GB1040, GB13022, GB17200, GB16491 etc.. Mainly used in metal and non-metallic 

materials testing, such as rubber, plastic, wire and cable, fiber optic cable, safety belt, safety belt, leather belt, plastic composite materials, waterproofing materials, steel, 

copper, profiles, spring steel, bearing steel, stainless steel （and its high hardness steel）, casting, steel plate, steel, non-ferrous metal wire tensile, compression, bending, 

shear, peel, tear, two extension （other extensometer） and other tests. Widely used in measurement and quality inspection; rubber; iron and steel metallurgy; machinery 

manufacturing; electrical and electronic; auto manufacturing; textile; cable; packaging material and food; instruments; medical equipment; civil nuclear energy; 

University; Research Institute; arbitration, technical supervision departments; building ceramics; petrochemical industry.

Three, the main features

Imported photoelectric encoder displacement measurement, controller adopts the embedded single chip microcomputer structure, measurement and control software with 

powerful, measurement, control, calculation, storage functions. With automatic calculation of stress, elongation （required with extensometer）, tensile strength, modulus of 

elasticity function, automatic statistics; automatically records the maximum point, the breaking point, the designated point force value or elongation; dynamic uses the 

computer to carry on the test process and test curve display, and data processing, the end of the test after the amplification curve of the reanalysis data edit graphics 

processing module, and print statements, product performance has reached the international advanced level.

Four, the main technical indicators:

01, the maximum test force: single column structure: 0-5KN （testing force can be based on user demand）

02, the test force display range: 0 ~ 5KN

03, test sub-file: full unclassified -*/

04, the test force measuring accuracy: better than showing the value of ± 1%

05, the displacement resolution: 0.01mm

06, the displacement measurement accuracy: better than showing the value of ± 1%

07, beam speed control range: 0.05mm/min ~ 300mm/min

The accuracy of 08, displacement and speed control: better than ± 1%

09, stretching stroke: 0 ~ 800mm （excluding fixture）

10, size （length * width * height）: 435mm * 275mm * 1700mm （single column）

11, power supply: 220V, 50Hz

Five, configuration:

01, high strength and a host （single-arm type structure）

02, a high precision photoelectric encoder

03, a full digital control system and the full digital speed regulating motor a

04, a set of precision screw

05, precise arc synchronous reduction system

06, a high precision sensor

07, a set of special stretching device

08, universal testing machine control system and large liquid crystal display a set of

Six, function introduction:

01, speed instantly switch: test process according to the preset three speed instantly switch, to save the test time

02, automatic shutdown: sample destruction, automatic stop moving.

03, display mode: test process dynamic real-time display test force, displacement, test speed, peak, test at the same time in the same LCD screen display

04, automatic return: after completion of the test test machine moving beam automatically return to the initial position

05, limit protection: a programmable and machinery two limit protection function

06, overload protection: when the load exceeds the rated value 3 ~ 5% when the equipment stops working automatically

07, automatic printing: the preparation of micro printer, print the test data

Beijing Beiguang Precision Instrument Co. Ltd. is a professional R & D, measuring instruments and related equipment, production, sales in one high-tech shares in 

enterprises, and in accordance with the implementation of modern management of the enterprise management mode to the joint-stock enterprise standardization, the 

company after a long-term development, and now owns independent R & D team and has been at home and abroad expert injection for product development and design.

Seven, fault and solution method:

A, tensile test machine, vibration or pause the pointer

1, the clutch gear wear: the need for repair or replacement.

2, the skin friction disc washer or spring wear: need to change the skin or spring washer.

3, handle shift: to adjust the control handle, make it fit in with the alveolar.

Two, the replacement of pendulum weight when the pointer does not return to zero

1, tensile testing machine installation is not level: the level to adjust the level of test machine.

2, not only the vertical pendulum hanging weight: A. Adjust the balance weight, so that the vertical.

Three, tensile testing machine, the pendulum back a bit too fast or too slow

1, the buffer valve gear position placed improper: adjust the buffer valve to the appropriate location.

2, the hydraulic oil viscosity is too low or too high: hammer down fast swing hydraulic oil viscosity is too low, viscosity is high down slowly. Should be proper replacement of 

hydraulic oil viscosity.

Vittae 3, buffer valve, or hydraulic oil dirty: washing buffer valve, pipe. Replacement of hydraulic oil.

Four, tensile testing machine pointer back to zero lag or unstable

1, the pointer bearing, spindle bearing corrosion or oil: clean or replace bearing.

2, toothed bar deformation or toothed bar and gear is not engaged: straightening toothed bar or washing, dressing gear, wheel, transmission parts.

3, the buffer valve with cleaning: cleaning buffer valve.

Five, tensile testing machine showing the value of positive deviation

1, the short arm loose: the knife blade tightly.

2, swing weight lighter: give weight weight （both A, B, C weight weight）.

Six, showing the value of negative deviation is the main reason of the frictional resistance between the units is too large

1, the pointer shaft bearing, bearing and power transmission parts friction resistance is too large: mainly adjustment, cleaning bearings and force transmission parts to 

eliminate the friction resistance is not normal.

Friction resistance on 2, chuck, driven needle leaf spring tightness and describe the adjustment device: chuck, driven needle leaf spring tightness and drawing device 

components. To eliminate the friction resistance is not normal.

3, the piston rod and the swing rod is connected with the flexible adjustment of both parts not connected parts. The flexible.

Seven, the driven needle stagnation or shift

Effect of 1, driven needle leaf spring elastic force or driven needle and dial friction resistance caused by the gap adjustment driven needle: the elasticity of the spring piece 

or driven needle and dial.

2, the driven needle are heavy alligator deviation: adjusting the weights, the balance.

Eight, showing the value of deviation is irregular

1, rack, gear oil, abrasion or burr: eliminate the rack, gear oil, burr, find out the pole difference when the contact points, and then modified tooth bar, gear; if not eliminate 

errors. Replace the tooth bar, gear.

2, tensile testing machine testing machine installation is not level: level adjustment.

3, toothed bar bending: alignment or replacement tooth bar, adjust the roll gap groove wheel.

Nine, computer software on-line prompt box display information overload.

The solution is to check the computer and test machine communication line is off; check the online selection of sensor is correct; check the last test or operation keys

When the sensor is knocked off; check whether the use of a software appears calibration or calibration before; check whether the manual modified calibration values, 

calibration information value or other hardware parameters in the.

Host ten, the power of the testing machine does not light, not to move up and down.

The solution is power line inspection access testing machine is connected properly; check the emergency stop switch is in screwed up state; power supply voltage check 

access testing machine is normal; check the socket on the insurance is burned off, remove the spare fuse can be installed.

Host eleven, testing machine power supply with power but the equipment can not move up and down.

The solution is to check whether it is 15S （time） after the device is unable to move, because the host boot take self-inspection, probably need 15S time; check the upper 

and lower limit is again appropriate position, operating space; check supply voltage access testing machine is normal.

Eight, oil source:

1, regularly check the host and the supply of oil leaks place, if there is oil leakage, should be promptly replaced seal ring or a combined pad;

2, according to the use condition and oil machine use period, replace the oil filter and filter periodically, replacing the hydraulic oil.

Experiment 3, not long time, pay attention to shut off the main power. If the machine is in the standby state, the switch should call the "load" file, because if the switch on the 

"rewind" file, electromagnetic reversing valve has been in a power-on state, affect the service life of the device.

Nine, control system maintenance:

1, regularly check the controller panel connecting line is good contact, such as loose, should be timely fastening;

2, after the test if there is a long time not machine closed, controller and computer;

3, the controller interface for the corresponding one one, inserted the wrong interface may cause damage to the equipment;

4, Swap Controller Interface must be shut down the power supply controller.