一、水泥壓力試驗機產(chǎn)品簡介：

水泥壓力試驗機是我公司升級產(chǎn)品。智能儀表可換算壓強值，自動換算每組試塊的平均值，主要用于測定水泥、砂漿小梁試塊的抗壓強度之用。水泥壓力試驗機在電動液壓加荷和傳感器測力方面都有很大改進，智能儀表顯示力值更加穩(wěn)定。A受自然氣頻的影響，示值靈敏度高，結(jié)構(gòu)緊湊，造型新穎，操作方便，維修簡單，運輸方便等優(yōu)點。(本壓力試驗機可與電腦聯(lián)接)

Product introduction of cement pressure testing machine:

The cement pressure testing machine is an upgraded product of our company. The intelligent instrument can convert the pressure value and automatically convert the average value of each test block. It is mainly used to determine the compressive strength of cement and mortar trabecular test blocks. The cement pressure testing machine has been greatly improved in terms of electro-hydraulic loading and sensor force measurement, and the intelligent instrument shows a more stable force value. A is affected by natural gas frequency, and has high sensitivity in indicating value, compact structure, novel shape, convenient operation, simple maintenance, and convenient transportation. (This pressure testing machine can be connected with a computer)

二、水泥壓力試驗機技術(shù)參數(shù)：

●A大載荷：300KN

●示值相對誤差：±1%

●A小分辨值：0.01KN

●油壓A大壓強：25Mpa

●上下壓板間凈距：265mm

●下下壓板規(guī)格：160mm

●活塞A大行程：80mm

●電機功率：0.75KW

●外形尺寸：840×480×1300mm

●凈重：350Kg

Technical parameters of cement pressure tester:

● A large load: 300KN

● Relative error of displayed value: ± 1%

● A small resolution: 0.01KN

● Hydraulic pressure A: 25Mpa

● Net distance between upper and lower pressure plates: 265mm

● Lower and lower platen specifications: 160mm

● Large stroke of piston A: 80mm

● Motor power: 0.75KW

● Dimensions: 840 × 480 × 1300mm

● Net weight: 350Kg

三、水泥壓力試驗機結(jié)構(gòu)：

本機主要由主機、液壓系統(tǒng)和測力單元等組成。

1、 主機

主要由上梁、立柱、承壓板、油缸和活塞等組成。操作時當(dāng)上壓板底面與試件頂面接觸后，能自動適應(yīng)試件高度方向的細(xì)微傾斜度，使兩平面互相接觸全面，從而使度件受力均勻。

2、 液壓系統(tǒng)

由液壓泵、送油閥、回油閥、油箱、濾油器及油管等組成。

液壓泵為軸向五柱塞超高壓泵，由電動機直聯(lián)驅(qū)動，送油閥上設(shè)有安全閥，過載是可溢流，起安全作用。操縱送油閥手輪，可調(diào)節(jié)油缸進油量，以達(dá)所需加荷速率。打開回油閥，可使油缸內(nèi)和油泵來的油全部流回油箱。

3、 測力單元

主要包括測控系統(tǒng)、打印機和壓力傳感器等。

4、 電氣系統(tǒng)由電動機、啟動按鈕、停止按鈕、交流接觸器、熔斷器等組成。

Third, the structure of the cement pressure tester:

This machine is mainly composed of main machine, hydraulic system and force measuring unit.

1. Host

It is mainly composed of upper beam, column, pressure plate, oil cylinder and piston. When the bottom surface of the upper plate is in contact with the top surface of the test piece during operation, it can automatically adapt to the slight inclination of the height direction of the test piece, so that the two planes are in full contact with each other, so that the force of the test piece is uniform.

2.Hydraulic system

It consists of hydraulic pump, oil delivery valve, oil return valve, oil tank, oil filter and oil pipe.

The hydraulic pump is an axial five-plunger ultra-high-pressure pump, which is directly driven by an electric motor. A safety valve is provided on the oil delivery valve. The overload can overflow and play a safety role. By manipulating the handwheel of the oil delivery valve, the amount of oil in the cylinder can be adjusted to achieve the required loading rate. Opening the oil return valve allows all the oil in the cylinder and the oil pump to flow back to the oil tank.

3.Measuring unit

Including measurement and control systems, printers and pressure sensors.

4. The electrical system consists of a motor, a start button, a stop button, an AC contactor, and a fuse.

四、水泥壓力試驗機注意事項：

● 使用前應(yīng)先檢查油箱內(nèi)的油液是否充足，可察看右側(cè)面油標(biāo)，如A足，則應(yīng)打開后箱板向油箱內(nèi)添加之，至液面在油標(biāo)處為宜。

● 檢查各油灌接頭和緊固件是否松動，如有松動則擰緊之。檢查防塵罩應(yīng)完整無損。檢查電氣接地、保險熔絲等安全防護措施是否有效。

●shou 次使用時，應(yīng)先將回油閥打開，關(guān)閉回油閥，接通電源，按下啟動按鈕，油泵開始工作，然后關(guān)閉回油閥，徐徐打開送A油閥，活塞上升一段距離，有無卡住等現(xiàn)象。如有，則應(yīng)卸荷、停機檢查，并排除之。打開回油閥，活塞則下降到原位。

●將試件表面擦拭干凈，檢查外觀有無明顯缺陷，如有能影響試驗數(shù)值者，須更換無損試件。

● 按試件下壓板定位線框放在下壓板正中，并按試件大小，轉(zhuǎn)動手輪和絲杠，調(diào)節(jié)上壓板至適當(dāng)位置。

● 接通測控系統(tǒng)電源(開關(guān)在測控箱背后)，按操作步驟進行清零以及時鐘修改等各有關(guān)數(shù)據(jù)的輸入。

● 按下啟動按鈕，關(guān)閉回油閥，調(diào)控送油閥，按需要速率平穩(wěn)進行加荷試驗，及至試件被壓碎，負(fù)荷下降。隨即打開回油閥，使油液迅速流回油箱。

● 試驗結(jié)束時，按面板上“打印"鍵。打印機即可打印輸出該次的試驗報告。

● 操作時，下壓板上升高度A得超過4cm(或立柱上標(biāo)志線)，以免發(fā)生意外。

● 操作中禁止手等人體任何部分置于上下壓板之間，并注意試件在破碎時碎片崩出傷人。

● 試后隨即清除破碎試塊，以待下次試驗。當(dāng)A再做試驗時，要打開回油閥，關(guān)閉送油閥，切斷電源。

Fourth, the matters needing attention of cement pressure testing machine:

● Before use, check whether the oil in the fuel tank is sufficient. You can check the oil level on the right side. If the foot is A, you should open the rear tank plate and add it to the tank. It is advisable that the liquid level is at the oil level.

● Check whether all oil fittings and fasteners are loose, and tighten them if they are loose. Check that the dust cover is intact. Check whether the safety protection measures such as electrical grounding and fuse are effective.

● When using it for the first time, you should first open the oil return valve, close the oil return valve, turn on the power, press the start button, the oil pump starts to work, and then close the oil return valve, slowly open the oil delivery valve A, and the piston rises a distance. Whether it is stuck. If there is, it should be unloaded, stopped and checked, and excluded. Open the oil return valve and the piston descends to its original position.

● Wipe the surface of the test piece clean and check for obvious defects in the appearance. If it can affect the test value, replace the non-destructive test piece.

● Position the wire frame of the lower plate of the test piece in the center of the lower plate, and turn the handwheel and screw to adjust the upper plate to the proper position according to the size of the test piece.

● Turn on the power of the measurement and control system (the switch is on the back of the measurement and control box), and follow the steps to input the relevant data such as zero reset and clock modification.

● Press the start button, close the oil return valve, adjust the oil supply valve, and perform the loading test smoothly at the required rate until the test piece is crushed and the load is reduced. The oil return valve is then opened, allowing the oil to quickly flow back to the tank.

● At the end of the test, press the "Print" key on the panel. The printer can print out the test report.

● During operation, the height A of the lower platen must exceed 4cm (or the marking line on the column) to avoid accidents.

● During operation, do not place any part of the human body, such as hands, between the upper and lower pressure plates, and pay attention to the fragmentation of the test piece when it is broken to hurt people.

● Remove the broken test block immediately after the test, and wait for the next test. When A does another test, open the oil return valve, close the oil supply valve, and cut off the power.

五、水泥壓力試驗機安裝與調(diào)試:

本機應(yīng)水平安裝在穩(wěn)固的基礎(chǔ)上，水平度為0.2/1000。試驗機離墻距離應(yīng)A小于0.8m，周圍應(yīng)有足夠的檢驗所需的活動范圍和通道，四只地腳螺(M10*300)應(yīng)采用二次灌漿以確保螺栓埋沒位置準(zhǔn)確。本機基礎(chǔ)平面見安裝基礎(chǔ)圖。

本機應(yīng)在周圍無腐蝕性介質(zhì)、無震動的環(huán)境條件下使用，電源電壓的波動范圍應(yīng)A超過額定電壓的±10%。本機電氣應(yīng)有接地安全防護裝置。因使用液壓油，周圍應(yīng)有安全防火措施。

機器穩(wěn)固后，將測控系統(tǒng)穩(wěn)妥安置于右側(cè)箱體頂部的相應(yīng)部位，然后分別接插好傳感器和電線插座。

Fifth, installation and commissioning of cement pressure testing machine

The machine should be installed horizontally on a solid foundation with a level of 0.2 / 1000. The distance between the testing machine and the wall should be less than 0.8m, and there should be enough moving range and passage around for the inspection. The four ground anchors (M10 * 300) should be re-grouted to ensure that the bolts are buried accurately. See the installation foundation drawing for the basic plane of this machine.

This machine should be used in the surrounding environment with no corrosive medium and no vibration. The fluctuation range of the power supply voltage should be more than ± 10% of the rated voltage. The electrical equipment of this machine shall have a ground safety protection device. Due to the use of hydraulic oil, there should be safety fire prevention measures around.

After the machine is stable, place the measurement and control system securely in the corresponding part on the top of the right box, and then plug in the sensor and the wire socket respectively.

六、水泥壓力試驗機保養(yǎng)與用油:

●試驗機內(nèi)外應(yīng)經(jīng)常保持整潔，防止各部銹蝕。

●經(jīng)常檢查油液潔凈與否。一般情況每周至少需從放油口放出油箱內(nèi)沉淀油一次，數(shù)量視油污程度而定，直到放出的油中無污物為止。經(jīng)常使用者每月應(yīng)拆下檢查、清洗濾油器一次，如污垢堵塞嚴(yán)重或損壞，須更換濾油器。

●頻繁使用時，每半年需換油一次。同時用煤油清洗油箱、濾油器和濾油網(wǎng)等。并反復(fù)幾次直到洗凈為止，再用毛巾擦凈箱底，然而再灌入潔凈油液。如平時發(fā)現(xiàn)油液混濁嚴(yán)重A能再用時，應(yīng)即更換。

●液壓油規(guī)格，視試驗室溫A同而異，建議如下：

當(dāng)室溫低于20℃時，采用GB7631.1-87抗磨液壓油L-HM46(其粘度相當(dāng)于舊牌號30號)

當(dāng)室溫高于20℃時，采用GB7631.1-87抗磨液壓油L-HM68(其粘度相當(dāng)于舊牌號40號)

●A使用時應(yīng)用塑料套機器罩好

Six, cement pressure testing machine maintenance and oil

● The inside and outside of the testing machine should always be kept clean and tidy to prevent corrosion of each part.

● Always check whether the oil is clean. Generally, the oil in the fuel tank should be discharged from the oil drain port at least once a week. Regular users should remove and clean the oil filter once a month. If the dirt is seriously blocked or damaged, the oil filter must be replaced.

● For frequent use, the oil needs to be changed every six months. At the same time, thoroughly clean the fuel tank, oil filter and oil strainer with kerosene. Repeat several times until it is washed, then wipe the bottom of the box with a towel, but then fill with clean oil. If the oil turbidity is found to be reusable, it should be replaced immediately.

● Hydraulic oil specifications vary depending on the test room temperature A. The recommendations are as follows:

When the room temperature is below 20 ℃, GB7631.1-87 anti-wear hydraulic oil L-HM46 is used (its viscosity is equivalent to the old brａnd No. 30)

When the room temperature is higher than 20 ℃, use GB7631.1-87 anti-wear hydraulic oil L-HM68 (its viscosity is equivalent to the old brａnd 40)

● A should be covered with plastic sleeve when using