CN111255772B - Automatic test equipment for hydraulic puller - Google Patents
Automatic test equipment for hydraulic puller Download PDFInfo
- Publication number
- CN111255772B CN111255772B CN202010063788.6A CN202010063788A CN111255772B CN 111255772 B CN111255772 B CN 111255772B CN 202010063788 A CN202010063788 A CN 202010063788A CN 111255772 B CN111255772 B CN 111255772B
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- Prior art keywords
- hydraulic puller
- pressure relief
- automatic
- pressure
- hydraulic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
Abstract
The utility model provides a hydraulic pressure draws horse automatic test equipment, includes detecting system, control system, action system and alarm system, detecting system detects the data of action system, detecting system with the data signal transmission who detects extremely control system, control system compares detection data and preset data to produce action instruction and/or alarm command according to the comparison result, action system according to the action instruction carries out the action, perhaps alarm system is according to alarm command sends out the police dispatch newspaper, action system includes automatic device and the automatic pressure relief device of suppressing. Compared with the prior art, the hydraulic puller automatic testing equipment provided by the invention has the following advantages: the automatic alarm system has the advantages of no need of manual operation, capability of automatic judgment and alarm, high testing efficiency and simple and flexible structure.
Description
Technical Field
The invention mainly relates to the field of hydraulic puller testing, in particular to automatic hydraulic puller testing equipment.
Background
The hydraulic part of the hydraulic puller is easy to damage due to repeated bearing of large hydraulic pressure, and once the hydraulic part is damaged, the puller is correspondingly scrapped, so that the quality of the hydraulic part determines the quality of the whole puller, wherein the pressing frequency of the hydraulic part also becomes an important parameter for measuring the quality of the puller. At present, when testing the quality of drawing horse ware, need the manual work constantly to suppress until reaching the biggest pulling force of drawing horse ware, cooperate artifical release and artifical count again, often the operation is wasted time and energy, in addition, in case the drawing horse ware damages also needs the manual work to judge, causes the confusion easily so that judge the mistake.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the automatic hydraulic puller testing equipment which does not need manual operation, can automatically judge and alarm, has high testing efficiency and simple and flexible structure.
The invention mainly adopts the following technical scheme:
the utility model provides an automatic test equipment of hydraulic pressure puller, includes detecting system, control system, actuating system and alarm system, detecting system detects actuating system's data, detecting system with the data signal transmission who detects extremely control system, control system compares data with preset data to produce action command and/or alarm command according to the result of comparing, actuating system basis action command carries out the action, perhaps alarm system basis alarm command sends out the police dispatch newspaper, actuating system includes presses device and automatic pressure relief device automatically.
The device also comprises a display system, wherein the detection system is connected with the display system, and the detection system displays the detected data through the display system.
The detection system comprises a pressure sensor, the pressure sensor is arranged on a detection platform, a hydraulic puller placing position is arranged on the detection platform, and the pressure sensor is used for detecting a pressure value at the position of a hydraulic puller thimble.
The detection system further comprises a frequency counter, and the frequency counter is used for detecting the frequency of the hydraulic puller reaching a preset pressure value.
The automatic pressing device comprises a position adjusting unit, and the position adjusting unit comprises a sliding rail and a sliding plate matched with the sliding rail.
The sliding plate is further provided with a thread groove, a lead screw penetrates through the thread groove, and one end of the lead screw is connected with a first bevel gear.
The first bevel gear is matched with the second bevel gear, the second bevel gear is connected with a rotating shaft, and a rotating hand wheel is arranged at the other end of the rotating shaft.
The rotating shaft is sleeved with a bearing, and the bearing is fixedly connected with the sliding rail through a bearing seat.
And the bearing seat is also provided with a fixing ring, and the fixing ring is used for braking the rotating shaft.
The automatic pressurizing device further comprises a pressurizing unit, the pressurizing unit is arranged on the sliding plate and comprises a servo motor, the servo motor drives the pressurizing rod to reciprocate, and hydraulic pressure on the detection platform is pumped by a puller.
The motor shaft of the servo motor is fixedly connected with a pressure wheel, the pressure wheel is further eccentrically connected with a transmission rod, and the transmission rod is connected with the pressing rod.
And a speed reducer is arranged between the servo motor and the pressure wheel so as to reduce the rotating speed of the pressure wheel.
The detection system further comprises a turn number counter, and the turn number counter is used for detecting the turn number of the pressure wheel.
The detection system further comprises a current measurer, wherein the current measurer is used for detecting whether the current of the servo motor is larger than a preset current value or not.
The automatic pressure relief device comprises a position adjusting unit, the position adjusting unit comprises a sliding rod and a long pressure relief arm, one end of the long pressure relief arm penetrates through the sliding rod, and the other end of the long pressure relief arm is rotatably connected with a short pressure relief arm.
The sliding rod is further provided with a fixing ring, the fixing ring is used for limiting the position of the long pressure relief arm on the sliding rod, the fixing ring is also arranged at the joint of the long pressure relief arm and the short pressure relief arm, and the fixing ring is used for limiting the position of the short pressure relief arm relative to the long pressure relief arm.
The automatic pressure relief device further comprises a pressure relief unit, the pressure relief unit comprises a pressure relief motor, the pressure relief motor is arranged on the short pressure relief arm, a motor shaft of the pressure relief motor is connected with a screwing device, and the screwing device corresponds to an oil drainage screw of the hydraulic puller.
The screwing device is a screwdriver head connected with a motor shaft of the pressure relief motor.
The detection platform, the automatic pressing device and the automatic pressure relief device are all arranged on the support.
Wherein, the lower part of support is provided with connects oily drawer.
Wherein, the bottom of support is provided with the universal wheel.
According to the technical scheme of the invention, the method has the following beneficial effects: the data detected by the detection system is compared with the preset data of the control system, once the data deviates from the range of the preset data or falls into the range of the preset data, the control system sends an alarm instruction, the alarm system receives the alarm instruction and then sends an alarm, so that the condition that the puller is damaged or is still normal is prompted, the whole set of test flow is free of manual pressure and pressure relief, time and labor are saved, the detection system can be freely switched between two test modes of ' whether the product is qualified ' or not ' or ' the durability of the product ' and has multiple purposes; the detection system comprises a pressure sensor for detecting the pressure value at the thimble of the puller and a counter, thereby omitting the complexity of manual counting and comparison, and being favorable for clearly knowing the performance parameters of the puller by combining the display function of a display system; the automatic pressurizing device and the automatic pressure relief device of the action system can also operate under the action instruction of the control system, manual pressurizing and pressure relief actions are not needed, and the labor intensity is greatly reduced; the automatic pressing device and the automatic pressure relief device can adjust positions, and detection of the puller products of various models is facilitated.
Drawings
Fig. 1 is a working schematic diagram of the hydraulic puller automatic testing equipment of the invention.
Fig. 2 is a schematic structural diagram of the hydraulic puller automatic test equipment of the invention.
Fig. 3 is a top view of the hydraulic puller automatic testing device of the invention.
Fig. 4 is a schematic cross-sectional view of a _ a in fig. 3.
The automatic test device comprises 1 hydraulic puller automatic test equipment, 10 detection platforms, 11 automatic pressing devices, 12 automatic pressure relief devices, 1111 slide rails, 1112 slide plates, 111 position adjusting units, 112 pressing units, 2 lead screws, 3 rotating shafts, 30 bearings, 1121 servo motors, 1122 pressing rods, 121 position adjusting units, 1211 slide rods and 122 pressure relief units.
Detailed Description
The invention will be further elucidated with reference to the drawings in which:
referring to fig. 1 to 4, an automatic hydraulic puller testing device includes a detection system, a control system, an action system and an alarm system, the detection system detects data of the action system, the detection system transmits detected data signals to the control system, the control system compares the detected data with preset data and generates an action instruction and/or an alarm instruction according to a comparison result, the action system acts according to the action instruction, or the alarm system gives an alarm according to the alarm instruction, and the action system includes an automatic pressing device 1 and an automatic pressure relief device 2. This kind of hydraulic pressure draws horse automatic test equipment under structural design need not artifical the participation, can realize automatic suppress, the release, compares through the preset data with control system, realizes the alarm function, can indicate to draw the horse to damage or still normal to, through modifying the settlement data, can make hydraulic pressure draw horse automatic test equipment "detect whether the product is qualified" or "detect product durability" between the free conversion, realize a tractor serves several purposes at two kinds of test modes.
Referring to fig. 1, the system further comprises a display system, the detection system is connected with the display system, and the detection system displays the detected data through the display system. The structural design is favorable for the detection personnel to observe the working process of the hydraulic puller automatic testing equipment, and the parameters reflect the performance of the tested puller to a certain extent, so that the quality condition of a product can be conveniently and quickly obtained.
Referring to fig. 2 and 3, the detection system includes a pressure sensor, the pressure sensor is disposed on the detection platform 10, a hydraulic puller placing position is disposed on the detection platform 10, and the pressure sensor is configured to detect a pressure value at a hydraulic puller ejector pin. Preferably, the detection platform 10 is provided with a hydraulic puller thimble through hole, the thimble through hole can stabilize the hydraulic puller to prevent the hydraulic puller from toppling over, and more preferably, the detection platform 10 is further provided with a pull claw placing hole. Preferably, the pressure sensor is arranged below the detection platform and connected with the detection platform.
Further, the detection system also comprises a frequency counter, and the frequency counter is used for detecting the frequency of the hydraulic puller reaching the preset pressure value. Preferably, a frequency display connected with the frequency counter is arranged on the detection platform 10, and the frequency display can display the frequency of the hydraulic puller reaching a preset pressure value. The structural design is favorable for visually reflecting the maximum pressure value and the durability of the hydraulic puller.
Referring to fig. 2 and 3, the automatic pressing device 11 includes a position adjusting unit 111, and the position adjusting unit 111 includes a slide 1111 and a slide 1112 cooperating with the slide. Preferably, the slide rail 1111 is vertical to be set up, is provided with the spout that the cover was established on slide rail 1111 on the slide 1112, and this kind of structural design does benefit to and realizes height position control, shorten the regulation route fast.
Referring to fig. 2 and 3, the sliding plate 1112 is further provided with a thread groove, a lead screw 2 penetrates through the thread groove, and one end of the lead screw 2 is connected with a first bevel gear 21. The screw rod rotates to be matched with the thread groove, and the position of the sliding plate is favorably controlled.
Referring to fig. 3 and 4, the first bevel gear 21 is matched with the second bevel gear 22, the second bevel gear 22 is connected with the rotating shaft 3, and the other end of the rotating shaft 3 is provided with a rotating hand wheel. This kind of structural design converts the vertical movement of slide into the rotation of axle smoothly, has changed the application of force direction moreover, accords with human mechanics, makes things convenient for manual regulation, design more humanized.
Referring to fig. 4, a bearing 30 is sleeved on the rotating shaft 3, and the bearing 30 is fixedly connected with the sliding rail 1111 through a bearing seat. The structure design is favorable for realizing the rotation action, and has firm structure and convenient operation.
Referring to fig. 4, the bearing seat is further provided with a fixing ring for braking the rotating shaft 3. Preferably, the fixing ring is open-type, and an operation handle is provided at an edge of the opening.
Referring to fig. 2 and 3, the automatic pressing device 11 further includes a pressing unit 112, the pressing unit 112 is disposed on the sliding plate 1112, the pressing unit 112 includes a servo motor 1121, and the servo motor 1121 drives a pressing rod 1122 to reciprocate so as to pump the hydraulic puller on the detection platform. This kind of structural design replaces artifical the action of suppressing through servo motor drive depression bar motion, labour saving and time saving, need not to consume the big amount of labour, need not to repeat simple, boring action again.
Referring to fig. 2 and 3, a motor shaft of the servo motor 1121 is fixedly connected with a pressure wheel, the pressure wheel is further eccentrically connected with a transmission rod, and the transmission rod is connected with a pressing rod 1122.
Referring to fig. 2 and 3, a speed reducer is further disposed between the servo motor 1121 and the pressure wheel to reduce the rotation speed of the pressure wheel. Generally, the rotating speed and force of the servo motor can not reach the range required by the test hydraulic pulling motor, and the force of the pressing action and the frequency of the pressing action can be close to the manual operation standard by using the speed reducer and the pressure wheel.
Further, the detection system also comprises a turn number counter, and the turn number counter is used for detecting the turn number of the pressure wheel. Preferably, the number of revolutions of the pressure wheel corresponds to the number of pressing actions of the pressing lever 1122. Preferably, the number of turns counter is connected with the display, and the number of turns counter can show the revolution of pressure wheel, and this kind of structural design is favorable to directly perceivedly showing the number of times of suppressing the action. Preferably, the lap counter counts again each time the pressure is re-applied after a drain is made.
Further, the detection system further includes a current measurer, which is configured to detect whether the current of the servo motor 1121 is greater than a preset current value. When the current value of the servo motor exceeds the preset current value, the jamming phenomenon of each component for implementing the pressing action is generally described, and preferably, after the control system receives the current overlarge data of the current measurer, an abnormal alarm is given.
Referring to fig. 2 and 3, the automatic pressure relief device 12 includes a position adjustment unit 121, and the position adjustment unit 121 includes a sliding rod 1211 and a long pressure relief arm having one end penetrating the sliding rod 1211, and the other end of the long pressure relief arm is rotatably connected to the short pressure relief arm. The structure is simple and reasonable in design, and is favorable for realizing rapid position adjustment.
Referring to fig. 2, the slide rod 1211 is further provided with a fixing ring for limiting the position of the long relief arm on the slide rod 1211, and the junction of the long relief arm and the short relief arm is also provided with a fixing ring for limiting the position of the short relief arm relative to the long relief arm. Preferably, the fixing ring is open-type, and an operation handle is provided at an edge of the opening.
Referring to fig. 2, the automatic pressure relief device further includes a pressure relief unit 122, the pressure relief unit 122 includes a pressure relief motor, the pressure relief motor is disposed on the short pressure relief arm, a motor shaft of the pressure relief motor is connected with a screwing device, and the screwing device corresponds to an oil drainage screw of the hydraulic puller. Preferably, the screwing device can also be driven by other means that facilitate oil drainage.
Further, the screwing device is a screwdriver head connected with a motor shaft of the pressure relief motor. Preferably, the oil drainage screw is provided with a nick corresponding to the screwdriver head. Preferably, the screwing means can also be a screw cap cooperating with the oil evacuation screw, see fig. 2.
Referring to fig. 2, 3 and 4, the detection platform, the automatic pressurizing device 11 and the automatic pressure relief device 12 are all arranged on the bracket. The structure design is favorable for adjusting the whole set of equipment to the height convenient for placing the hydraulic puller on the detection platform, accords with human mechanics, and is convenient to operate.
Furthermore, an oil receiving drawer is arranged at the lower part of the bracket. The oil receiving drawer is arranged to collect the leaked oil.
Further, the bottom of support is provided with the universal wheel. The structure design is convenient for moving the position of the whole set of equipment.
The working principle of the hydraulic puller automatic testing equipment is as follows:
for example, when the hydraulic puller automatic detection device is in a mode of "detecting whether a product is qualified", data such as a maximum pressure value P required for the hydraulic puller of the type to reach, a number of times T of reaching the preset maximum pressure value, and a number of revolutions N of the pressure wheel may be preset in the control system according to the type of the hydraulic puller, and the data may be selected as a specific range. After the equipment is started, if the revolution N of the pressure wheel exceeds the thimble of the puller with the preset revolution to reach the maximum pressure value P, the oil leakage of the puller is judged, and the control system instructs an alarm system to alarm (usually, obvious reaction exists); if the revolution N of the pressure wheel is the preset revolution when the thimble of the puller reaches the maximum pressure value P, the puller is judged to be normal, the control system instructs the alarm system to carry out normal alarm (no obvious reaction usually), meanwhile, the control system instructs the action system to continue actions, such as pressing, pressure relief and continuous pressing, until the number T of times of reaching the maximum pressure value is met, the action system stops working, and the puller is judged to be a qualified product, otherwise, the puller is judged to be an unqualified product. When the hydraulic puller automatic detection equipment is in a mode of detecting the durability of a product, the number T of times of reaching the maximum pressure value can be not preset, the equipment continues to operate until the hydraulic puller leaks oil, and the revolution number N of the pressure wheel exceeds a preset value at the moment.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (15)
1. The utility model provides a hydraulic pressure draws horse automatic test equipment which characterized in that: the detection system comprises a pressure sensor, the pressure sensor is arranged on a detection platform, a hydraulic puller placing position is arranged on the detection platform, the pressure sensor is used for detecting a pressure value at a hydraulic puller thimble, the detection system detects data of the action system, the detection system transmits a detected data signal to the control system, the control system compares the detected data with preset data and generates an action command and/or an alarm command according to a comparison result, the action system acts according to the action command or sends out an alarm according to the alarm command, when the detection system is in a mode of ' product qualification or not ', the hydraulic puller is preset in the control system to reach a required maximum pressure value P, the number of pressurizing times T reaching the preset maximum pressure value and the number of revolution N of a pressure wheel, and after equipment is started, if the number of revolution exceeds the number of revolution N of the preset pressure wheel, the number of the hydraulic puller thimble reaches the required maximum pressure value P, the hydraulic puller is judged to be oil leakage ', and the control system indicates the alarm system to alarm; if the revolution number is equal to the revolution number N of the preset pressure wheel when the position of the thimble of the hydraulic puller reaches the required maximum pressure value P, the hydraulic puller is judged to be normal, the control system instructs the action system to continue to act until the pressing frequency T of the preset maximum pressure value is reached and then the action system stops working, the hydraulic puller is further judged to be a qualified product, and otherwise, the hydraulic puller is judged to be an unqualified product; when the device is in a mode of detecting the durability of a product, the pressing times T reaching a preset maximum pressure value are not preset, the device is enabled to continue to operate until the hydraulic puller leaks oil, and the action system comprises an automatic pressing device and an automatic pressure relief device; the automatic pressurizing device comprises a position adjusting unit and a pressurizing unit, the position adjusting unit comprises a slide rail and a slide plate matched with the slide rail, the pressurizing unit is arranged on the slide plate and comprises a servo motor, the servo motor drives a pressurizing rod to reciprocate so as to pump a hydraulic puller on the detection platform, a motor shaft of the servo motor is fixedly connected with the pressure wheel, the pressure wheel is also eccentrically connected with a transmission rod, and the transmission rod is connected with the pressurizing rod; the automatic pressure relief device comprises a position adjusting unit and a pressure relief unit, the position adjusting unit comprises a sliding rod and a long pressure relief arm, one end of the long pressure relief arm penetrates through the sliding rod, the other end of the long pressure relief arm is rotatably connected with a short pressure relief arm, the pressure relief unit comprises a pressure relief motor, the pressure relief motor is arranged on the short pressure relief arm, a motor shaft of the pressure relief motor is connected with a screwing device, and the screwing device corresponds to an oil relief screw of the hydraulic puller.
2. The hydraulic puller automatic test equipment as set forth in claim 1, wherein: the system also comprises a display system, wherein the detection system is connected with the display system, and the detection system displays the detected data through the display system.
3. The hydraulic puller automatic testing device according to claim 1, characterized in that: the detection system further comprises a frequency counter, and the frequency counter is used for detecting the frequency of the hydraulic puller reaching a preset pressure value.
4. The hydraulic puller automatic testing device according to claim 1, characterized in that: the sliding plate is further provided with a thread groove, a lead screw penetrates through the thread groove, and one end of the lead screw is connected with a first bevel gear.
5. The hydraulic puller automatic testing device according to claim 4, wherein: the first bevel gear is matched with the second bevel gear, the second bevel gear is connected with a rotating shaft, and a rotating hand wheel is arranged at the other end of the rotating shaft.
6. The hydraulic puller automatic testing device according to claim 5, wherein: the rotating shaft is sleeved with a bearing, and the bearing is fixedly connected with the sliding rail through a bearing seat.
7. The hydraulic puller automatic test equipment as set forth in claim 6, wherein: the bearing seat is further provided with a fixing ring, and the fixing ring is used for braking the rotating shaft.
8. The hydraulic puller automatic test equipment as set forth in claim 1, wherein: and a speed reducer is arranged between the servo motor and the pressure wheel so as to reduce the rotating speed of the pressure wheel.
9. The hydraulic puller automatic test equipment as set forth in claim 1 or 8, wherein: the detection system further comprises a turn number counter, and the turn number counter is used for detecting the turn number of the pressure wheel.
10. The hydraulic puller automatic testing device according to claim 1, characterized in that: the detection system further comprises a current measurer, and the current measurer is used for detecting whether the current of the servo motor is larger than a preset current value.
11. The hydraulic puller automatic test equipment as set forth in claim 1, wherein: the sliding rod is further provided with a fixing ring, the fixing ring is used for limiting the position of the long pressure relief arm on the sliding rod, the connecting part of the long pressure relief arm and the short pressure relief arm is also provided with a fixing ring, and the fixing ring is used for limiting the position of the short pressure relief arm relative to the long pressure relief arm.
12. The hydraulic puller automatic test equipment as set forth in claim 1, wherein: the screwing device is a screwdriver head connected with a motor shaft of the pressure relief motor.
13. The hydraulic puller automatic test equipment as set forth in claim 1, wherein: the detection platform, the automatic pressing device and the automatic pressure relief device are all arranged on the support.
14. The hydraulic puller automatic test equipment as set forth in claim 13, wherein: and an oil receiving drawer is arranged at the lower part of the bracket.
15. The hydraulic puller automatic test equipment as set forth in claim 13 or 14, wherein: the bottom of support is provided with the universal wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010063788.6A CN111255772B (en) | 2020-01-20 | 2020-01-20 | Automatic test equipment for hydraulic puller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010063788.6A CN111255772B (en) | 2020-01-20 | 2020-01-20 | Automatic test equipment for hydraulic puller |
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| CN111255772A CN111255772A (en) | 2020-06-09 |
| CN111255772B true CN111255772B (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010063788.6A Active CN111255772B (en) | 2020-01-20 | 2020-01-20 | Automatic test equipment for hydraulic puller |
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| CN106767605A (en) * | 2017-02-24 | 2017-05-31 | 东莞市盘石机电科技有限公司 | A kind of detection means of motor drive shaft |
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| US6167764B1 (en) * | 1998-07-28 | 2001-01-02 | Westinghouse Electric Company Llc | Stud tensioning method |
| DE102009017309A1 (en) * | 2009-04-11 | 2010-10-14 | Schaeffler Technologies Gmbh & Co. Kg | Hydraulic mounting device and method for pressing on inner rings and hydraulic pump |
| CN202065278U (en) * | 2011-05-30 | 2011-12-07 | 重庆交通大学 | Hydraulic system fault analyzing system of whole automobile crane |
| GB201503870D0 (en) * | 2015-03-06 | 2015-04-22 | Hyva Holding Bv | Method and system for generating a service indicator |
| CN208200247U (en) * | 2018-05-30 | 2018-12-07 | 湖北枝江宏宇建设有限责任公司 | A kind of electric hydraulic lifting jack |
| CN109458380A (en) * | 2018-12-11 | 2019-03-12 | 大乘汽车有限公司 | A kind of Hydraulic Elements detection platform |
| CN211347354U (en) * | 2020-01-20 | 2020-08-25 | 台州鑫铭工具有限公司 | Automatic test equipment for hydraulic puller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1432154A (en) * | 1973-05-22 | 1976-04-14 | Uniroyal Inc | Tensile testing apparatus and method |
| US5400499A (en) * | 1994-02-24 | 1995-03-28 | General Electric Company | Internal bushing removal tool |
| CN203197828U (en) * | 2012-12-06 | 2013-09-18 | 成都威特电喷有限责任公司 | Tool used for disassembling oil pump testing taper sleeve |
| CN106272241A (en) * | 2015-05-29 | 2017-01-04 | Skf公司 | Bearing puller |
| CN106767605A (en) * | 2017-02-24 | 2017-05-31 | 东莞市盘石机电科技有限公司 | A kind of detection means of motor drive shaft |
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| CN111255772A (en) | 2020-06-09 |
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Address after: 318050, Zhejiang province Taizhou city Luqiao District Feng Jiang Street playing bridge village Applicant after: Taizhou Xinming Technology Co.,Ltd. Address before: 318054 dawangqiao village, fengjiang street, Luqiao District, Taizhou City, Zhejiang Province Applicant before: TAIZHOU SINMEN TOOLS Co.,Ltd. |
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