CN218118207U - Cab turnover oil cylinder test bed - Google Patents
Cab turnover oil cylinder test bed Download PDFInfo
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- CN218118207U CN218118207U CN202222258830.7U CN202222258830U CN218118207U CN 218118207 U CN218118207 U CN 218118207U CN 202222258830 U CN202222258830 U CN 202222258830U CN 218118207 U CN218118207 U CN 218118207U
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- 238000012360 testing method Methods 0.000 title claims abstract description 103
- 230000007306 turnover Effects 0.000 title description 14
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- 238000001514 detection method Methods 0.000 abstract description 38
- 238000000034 method Methods 0.000 abstract description 11
- 238000004088 simulation Methods 0.000 abstract description 3
- 238000011056 performance test Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 235
- 230000008569 process Effects 0.000 description 10
- 230000005284 excitation Effects 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 6
- 239000003129 oil well Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical group O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 2
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- 238000011897 real-time detection Methods 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241000755266 Kathetostoma giganteum Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model relates to a car hydraulic pressure technique, concretely relates to driver's cabin upset hydro-cylinder test bench, including frame and the workstation of setting in the frame, the hydro-cylinder that will await measuring through the location strutting arrangement on the workstation sets up with the load hydro-cylinder relatively, fixed connection force sensor is served to the flexible of load hydro-cylinder, be provided with the connecting piece on the force sensor, the flexible end of connecting piece with the load hydro-cylinder that awaits measuring is connected, through setting up the drive hydro-cylinder that awaits measuring of test hydraulic pump station, set up the drive load hydro-cylinder of load hydraulic pump station to the hydro-cylinder simulation loading that awaits measuring, the operating pressure of rethread pressure sensor detection hydro-cylinder that awaits measuring, the flexible stroke that detects the hydro-cylinder through displacement sensor realizes the performance test to the hydro-cylinder that awaits measuring, driver's cabin upset hydro-cylinder test bench's commonality is strong, and the detectable project is many, and detection efficiency is high, when having solved current hydro-cylinder test platform and experimenting the upset hydro-cylinder of driver's cabin, the commonality is low, and detect with big problem with big costs.
Description
Technical Field
The utility model relates to an automobile hydraulic technology, concretely relates to driver's cabin upset hydro-cylinder test bench.
Background
In a flat-head vehicle, large components such as an engine are located below a cab floor, and in order to improve the accessibility of the engine and facilitate the repair and maintenance of the entire vehicle, a hydraulic system is often adopted to realize the turnover of the cab. The cab is turned over by stretching and retracting the actuating element oil cylinder, and various performance detection needs to be carried out on the oil cylinder before the oil cylinder leaves a factory.
The existing overturning oil cylinder of the cab mainly comprises a differential follow-up type, a non-differential follow-up type and a plunger type, and the existing oil cylinder test platform can not be simultaneously suitable for the three types of overturning oil cylinders; in order to ensure the safety and reliability of the application of the oil cylinder, the oil cylinder is generally required to be subjected to stroke detection, high-pressure sealing detection, tensile strength detection, creep amount detection and the like, and detection items are different along with the different types of the overturning oil cylinder, so that the tests of various overturning oil cylinders are required to be carried out on different oil cylinder test platforms or test devices at present, the assembling, disassembling and transferring processes of the overturning oil cylinder are complicated, the detection efficiency is low, and the detection cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a driver's cabin upset hydro-cylinder test bench when solving current hydro-cylinder test platform and testing the upset hydro-cylinder of driver's cabin, the commonality is low, detection efficiency hangs down and detects the big problem of cost.
The utility model provides a technical scheme of above-mentioned technical problem is: a cab turnover oil cylinder test bed comprises a rack and a workbench arranged on the rack, wherein a positioning and supporting device used for positioning and supporting an oil cylinder to be tested on the workbench is arranged on one side of the workbench, a load oil cylinder is fixedly arranged on the opposite side of the workbench, a force sensor is fixedly connected to the telescopic end of the load oil cylinder, a connecting piece is fixedly connected to one end, away from the load oil cylinder, of the force sensor, and one end, away from the force sensor, of the connecting piece is used for being detachably and fixedly connected with the telescopic end of the oil cylinder to be tested;
the rack is also provided with a test hydraulic pump station for driving the oil cylinder to be tested and a load hydraulic pump station for driving the load oil cylinder;
a first oil way assembly for conveying hydraulic driving force is arranged between the test hydraulic pump station and the oil cylinder to be tested, and the test hydraulic pump station drives the oil cylinder to be tested through the first oil way assembly;
a second oil way assembly for conveying hydraulic driving force is arranged between the load hydraulic pump station and the load oil cylinder, and the load hydraulic pump station drives the load oil cylinder through the second oil way assembly;
the first oil way assembly is provided with a pressure sensor assembly for feeding back the working oil pressure of the oil cylinder to be detected;
and a displacement sensor for feeding back the telescopic stroke of the oil cylinder to be detected is arranged on the workbench.
The positioning and supporting device is arranged to position and support the oil cylinder to be measured on the workbench, and the telescopic end of the oil cylinder to be measured is opposite to the telescopic end of the load oil cylinder;
through test hydraulic power unit with first oil circuit subassembly realizes right the drive of the hydro-cylinder that awaits measuring (including but not limited to differential follow-up type hydro-cylinder, non-differential follow-up type hydro-cylinder and plunger type hydro-cylinder three kinds), and pass through in the drive process the pressure sensor subassembly is right the operating pressure of the hydro-cylinder that awaits measuring carries out real-time detection, and through the application the load cylinder is right the hydro-cylinder that awaits measuring carries out the analog loading, in order to simulate the operating mode of the hydro-cylinder that awaits measuring, rethread force sensor, displacement sensor and the pressure sensor subassembly acquires experimental required data, in order to accomplish right the detection of the hydro-cylinder that awaits measuring, the detection that can accomplish includes but not limited to stroke detection, high-pressure leakproofness detect, tensile strength detects, creep amount detection etc..
The cab turnover oil cylinder test bed is strong in universality, multiple in detectable items and high in detection efficiency, and solves the problems that when the existing oil cylinder test bed is used for testing a turnover oil cylinder of a cab, the universality is low, the detection efficiency is low, and the detection cost is high.
Furthermore, the first oil way assembly comprises a first oil pipe and a second oil pipe, and the first oil pipe and the second oil pipe are used for communicating the test hydraulic pump station with the oil way interface of the oil cylinder to be tested.
The first oil pipe and the second oil pipe are arranged, so that the arrangement mode of the first oil way assembly is provided, when a single-action hydraulic cylinder (namely a plunger type hydraulic cylinder) is detected, only one of the first oil pipe or the second oil pipe needs to be connected with an oil way interface of the single-action hydraulic cylinder because the single-action hydraulic cylinder only has one oil way interface; when the double-acting hydraulic cylinder (namely, a differential follow-up hydraulic cylinder and a non-differential follow-up hydraulic cylinder) is detected, two interfaces of the double-acting hydraulic cylinder are respectively connected with the first oil pipe and the second oil pipe; meanwhile, the hydraulic pump station in the prior art is integrated with an overflow valve and an electromagnetic reversing valve, so that the conversion function between a differential circuit and a non-differential circuit can be realized, and the test hydraulic pump station can drive various oil cylinders to be tested (including but not limited to differential follow-up type oil cylinders, non-differential follow-up type oil cylinders and plunger type oil cylinders) through the first oil pipe and the second oil pipe.
Furthermore, the pressure sensor assembly comprises two pressure sensors, wherein the two pressure sensors are respectively arranged on the first oil pipe and the second oil pipe and are used for feeding back the oil pressure in the first oil pipe or the oil pressure in the second oil pipe.
Furthermore, each pressure sensor is provided with a pressure gauge.
A pressure gauge is integrated on each pressure sensor, so that the pressure gauge displays a corresponding pressure value according to a pressure signal fed back by the corresponding pressure sensor.
Furthermore, the second oil circuit assembly comprises a third oil pipe and a fourth oil pipe, the third oil pipe and the fourth oil pipe are communicated with the load hydraulic pump station, the load oil cylinder is a double-acting hydraulic cylinder and comprises two oil circuit interfaces, and the two oil circuit interfaces of the load oil cylinder are communicated with the third oil pipe and the fourth oil pipe respectively.
The load oil cylinder is set to be a double-acting hydraulic cylinder, so that the load oil cylinder definitely has the capability of loading pressure or tension on the telescopic end of the oil cylinder to be tested, and meanwhile, the setting mode of the corresponding second oil way assembly is definitely determined.
Furthermore, one side of the workbench is provided with a control cabinet used for controlling the test hydraulic pump station and the load hydraulic pump station, a PLC (programmable logic controller) is arranged on the rack, an HMI (human machine interface) panel is arranged on the PLC controller, and the HMI panel, the control cabinet, the pressure sensor assembly, the force sensor and the displacement sensor are all electrically connected with the PLC controller.
And a power supply control circuit for controlling the test hydraulic pump station and the load hydraulic pump station is arranged in the control cabinet.
The automatic detection of the performance of the oil cylinder to be detected is achieved by combining a sensor with a PLC (programmable logic controller), an excitation signal is input on the HMI panel, the PLC controls the control cabinet according to the excitation signal, the test hydraulic pump station and the load hydraulic pump station are further controlled, the PLC collects and stores response signals fed back by the force sensor, the pressure sensor assembly and the displacement sensor in the test process as test data when the oil cylinder to be detected is detected, and a test conclusion is obtained through the test data.
Furthermore, the positioning and supporting device comprises a first support fixedly arranged on the workbench and detachably and fixedly connected with the fixed end of the oil cylinder to be tested, and a second support arranged on the workbench and used for supporting the cylinder barrel of the oil cylinder to be tested.
Furthermore, a first slide rail and a second slide rail which are arranged along the length direction of the load oil cylinder are arranged on the workbench, and the connecting piece is arranged on the first slide rail and can slide in a linear reciprocating manner along the first slide rail; the second support is arranged on the second sliding rail and can slide along the second sliding rail in a linear reciprocating manner.
The connecting piece is arranged on the first slide rail by arranging the first slide rail and can linearly and reciprocally slide along the first slide rail; in the test process, the load oil cylinder and the vibration of the oil cylinder to be tested are reduced, and then the test data error caused by the vibration of the load oil cylinder and the oil cylinder to be tested is reduced, the stability of the cab turnover oil cylinder test bed is improved, and the test precision is improved.
Through setting up the second slide rail, realized the relative position between second support and the hydro-cylinder that awaits measuring is adjustable to the convenient length and the flexible stroke that are according to various hydro-cylinder that awaits measuring adjust the hydro-cylinder that awaits measuring is in the support position on the workstation, improved the commonality and the stability of driver's cabin upset hydro-cylinder test bench.
Furthermore, be provided with the protection casing on the workstation, the hydro-cylinder that awaits measuring the load hydro-cylinder the location strutting arrangement the connecting piece force sensor with displacement sensor all sets up in the protection casing, it is provided with and is used for the installation and dismantles to open on the protection casing the emergency exit of the hydro-cylinder that awaits measuring.
Furthermore, one end of the connecting piece is fixedly connected with the force sensor, the other end of the connecting piece is connected with a pin shaft of a telescopic end of the oil cylinder to be detected, and a first proximity switch is arranged on the connecting piece; the first support is connected with a fixed end pin shaft of the oil cylinder to be tested, a second proximity switch is arranged on the first support, and a linkage switch is arranged on the safety door; the first proximity switch, the second proximity switch and the interlock switch are all electrically connected with the control cabinet.
The first proximity switch is switched on when the connecting piece is connected with the pin shaft of the telescopic end of the oil cylinder to be tested in place, the second proximity switch is switched on when the first support is connected with the pin shaft of the fixed end of the oil cylinder to be tested in place, and the interlocking switch is switched on when the safety door is closed;
when any one of the first proximity switch, the second proximity switch and the chain switch is disconnected, the power supply control circuit of the control cabinet is disconnected, and the test hydraulic pump station and the load hydraulic pump station cannot operate; when the first proximity switch, the second proximity switch and the interlock switch are all switched on, a power supply control circuit of the control cabinet is switched on.
Further, still be provided with the warning light on the workstation, first proximity switch the second proximity switch with chain switch all with the warning light electricity links, first proximity switch the second proximity switch with during arbitrary switch disconnection in the chain switch, the warning light switch-on is in order to send out the police dispatch newspaper.
Furthermore, the displacement sensor is a magnetic grid ruler sensor, a magnetic grid ruler of the magnetic grid ruler sensor is fixedly arranged on the workbench, and a reading head of the magnetic grid ruler sensor is fixedly connected to the connecting piece.
Furthermore, a plurality of casters are arranged at the bottom end of the rack.
Furthermore, each caster is a horseshoe caster.
Furthermore, an oil receiving disc is arranged below the rack.
Further, a support used for temporarily placing the oil cylinder to be detected is further arranged on the workbench.
Furthermore, still be provided with the main oil tank in the frame, install the oil-well pump on the main oil tank.
The main oil tank is used for storing hydraulic oil, and the oil-well pump is used for conveying the hydraulic oil in the main oil tank to the test hydraulic pump station or the load hydraulic pump station so as to supplement the hydraulic oil in the oil tank of the test hydraulic pump station or the load hydraulic pump station.
Furthermore, the rack is also provided with a dirty oil tank for recovering dirty oil in the test hydraulic pump station and the load hydraulic pump station.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive laboriousness.
FIG. 1 is a schematic structural diagram of a cab tilting cylinder test stand according to the present embodiment;
FIG. 2 is a schematic view showing the installation of the components on the table in this embodiment;
FIG. 3 is a schematic view showing the installation of the components under the worktable in this embodiment;
the device comprises a frame, a workbench, a test hydraulic pump station, a load oil cylinder, a first oil way assembly, a pressure sensor assembly, a control cabinet and an oil receiving disc, wherein the frame is 1-the frame, the workbench is 2-the test hydraulic pump station is 3-the load hydraulic pump station, the load oil cylinder is 5-the first oil way assembly, the pressure sensor assembly is 7-the control cabinet is 8-the oil receiving disc is 9-the oil receiving disc;
101-safety door, 102-steel plate, 103-Fuma truckle, 104-main oil tank, 105-oil pump, 106-dirty oil tank, 107-PLC controller, 108-HMI panel, 109-alarm lamp;
201-a first slide rail, 202-a second slide rail, 203-a first support, 204-a second support, 205-a magnetic scale, 206-a connecting piece, 207-a force sensor, 208-a support, 209-a reading head;
20301 — a second proximity switch;
20601 — first proximity switch;
601-first oil pipe, 602-second oil pipe;
701-pressure sensor, 702-pressure gauge;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1 and fig. 2, a cab tilting cylinder test bed comprises a frame 1 and a workbench 2 arranged on the frame, wherein a positioning and supporting device for positioning and supporting a cylinder to be tested on the workbench is arranged on one side of the workbench 2, a load cylinder 5 is fixedly mounted on the opposite side of the workbench 2, a force sensor 207 is fixedly connected to the telescopic end of the load cylinder 5, a connecting piece 206 is fixedly connected to one end, far away from the load cylinder 5, of the force sensor 207, and one end, far away from the force sensor 207, of the connecting piece 206 is detachably and fixedly connected to the telescopic end of the cylinder to be tested;
the rack 1 is also provided with a test hydraulic pump station 3 for driving the oil cylinder to be tested and a load hydraulic pump station 4 for driving the load oil cylinder;
a first oil way assembly 6 for conveying hydraulic driving force is arranged between the test hydraulic pump station 3 and the oil cylinder to be tested, and the test hydraulic pump station 3 drives the oil cylinder to be tested through the first oil way assembly 6;
a second oil way assembly for conveying hydraulic driving force is arranged between the load hydraulic pump station 4 and the load oil cylinder 5, and the load hydraulic pump station 4 drives the load oil cylinder 5 through the second oil way assembly;
the first oil way assembly 6 is provided with a pressure sensor assembly 7 for feeding back the working oil pressure of the oil cylinder to be detected;
and a displacement sensor for feeding back the telescopic stroke of the oil cylinder to be detected is arranged on the workbench 2.
The positioning and supporting device is arranged to position and support the oil cylinder to be measured on the workbench 1, and the telescopic end of the oil cylinder to be measured is opposite to the telescopic end of the load oil cylinder;
through test hydraulic power unit with first oil circuit subassembly 6 realizes right the drive of the hydro-cylinder that awaits measuring (including but not limited to differential follow-up type hydro-cylinder, non-differential follow-up type hydro-cylinder and plunger type hydro-cylinder three kinds), and pass through in the drive process pressure sensor subassembly 7 is right the operating pressure of hydro-cylinder that awaits measuring carries out real-time detection, and through the application load hydro-cylinder 5 is right the hydro-cylinder that awaits measuring carries out the simulation loading, in order to simulate the operating mode of hydro-cylinder that awaits measuring, rethread force sensor 207, displacement sensor and pressure sensor subassembly 7 acquires experimental required data, in order to accomplish right the detection of the hydro-cylinder that awaits measuring, the detection that can accomplish includes but not limited to stroke detection, high-pressure leakproofness detect, tensile strength detect, creep amount detection etc..
The cab turnover oil cylinder test bed is strong in universality, multiple in detectable items and high in detection efficiency, and solves the problems that when the existing oil cylinder test bed is used for testing a turnover oil cylinder of a cab, the universality is low, the detection efficiency is low, and the detection cost is high.
In this embodiment, the displacement sensor is a magnetic scale sensor, a magnetic scale 205 of the magnetic scale sensor is fixedly installed on the worktable 2, and a reading head 209 of the magnetic scale sensor is fixedly connected to the connecting member 206.
As shown in fig. 2, the first oil path assembly 6 includes a first oil pipe 601 and a second oil pipe 602, and both the first oil pipe 601 and the second oil pipe 602 are used for communicating the test hydraulic pump station with the oil path interface of the oil cylinder to be tested.
By arranging the first oil pipe 601 and the second oil pipe 602, a setting mode of the first oil way assembly 6 is provided, when a single-acting hydraulic cylinder (namely a plunger type hydraulic cylinder) is detected, only one of the first oil pipe 601 or the second oil pipe 602 needs to be connected with an oil way interface of the single-acting hydraulic cylinder because the single-acting hydraulic cylinder only has one oil way interface; when a double-acting hydraulic cylinder (namely, a differential follow-up type hydraulic cylinder and a non-differential follow-up type hydraulic cylinder) is detected, two interfaces of the double-acting hydraulic cylinder are respectively connected with the first oil pipe 601 and the second oil pipe 602; meanwhile, the hydraulic pump station in the prior art is integrated with an overflow valve and an electromagnetic directional valve, so that the function of converting a differential circuit into a non-differential circuit can be realized, and the test hydraulic pump station 3 can drive various cylinders to be tested (including but not limited to differential follow-up cylinders, non-differential follow-up cylinders and plunger cylinders) through the first oil pipe 601 and the second oil pipe 602.
As shown in fig. 1, the pressure sensor assembly 7 includes two pressure sensors 701, in this embodiment, the two pressure sensors 701 are both disposed on the rack 1, and the two pressure sensors 701 are respectively connected to the first oil pipe 601 and the second oil pipe 602 (not shown in the figure), and the pressure sensors 701 are configured to feed back the oil pressure in the first oil pipe 601 or the oil pressure in the second oil pipe 602.
As shown in fig. 1, each of the pressure sensors 701 is provided with a pressure gauge 702.
By integrating a pressure gauge 702 on each pressure sensor 701, the pressure gauge 702 displays a corresponding pressure value according to a pressure signal fed back by the corresponding pressure sensor 701.
In this embodiment, the second oil circuit subassembly includes third oil pipe and fourth oil pipe, third oil pipe with fourth oil pipe all with load hydraulic pump station 4 communicates, load cylinder 5 is double-acting hydraulic cylinder, including two oil circuit interfaces, two oil circuit interfaces of load cylinder 5 communicate respectively third oil pipe with fourth oil pipe, here because the second oil circuit subassembly with first oil circuit subassembly 6's the mode of setting is similar, utilizes among the prior art hydraulic pump station all to integrate overflow valve and electromagnetic reversing valve, can realize differential return circuit and non-differential return's conversion function, makes load hydraulic pump station 4 can pass through third oil pipe with the fourth oil pipe drive load cylinder 5.
By setting the load oil cylinder 5 as a double-acting hydraulic cylinder, the load oil cylinder 5 definitely has the capability of loading pressure or tension on the telescopic end of the oil cylinder to be tested, and meanwhile, the setting mode of the corresponding second oil way component is definitely determined.
As shown in fig. 1, a control cabinet 8 for controlling the test hydraulic pump station 3 and the load hydraulic pump station 4 is arranged on one side of the workbench 2, a PLC controller 107 is arranged on the rack 1, and an HMI panel 108 is arranged on the PLC controller 107; the HMI panel 108, the control cabinet 8, the pressure sensor assembly 7, the force sensor 207, and the displacement sensor are all electrically connected to the PLC controller 107.
And a power supply control circuit for controlling the test hydraulic pump station 3 and the load hydraulic pump station 4 is arranged in the control cabinet 8.
The automatic detection of the performance of the oil cylinder to be detected is realized by adopting sensors (namely, the pressure sensor assembly 7, the force sensor 207 and the displacement sensor) and combining a PLC (namely, the PLC controller 107), the PLC controller 107 controls the control cabinet 8 according to an excitation signal by inputting the excitation signal on the HMI panel 108, and then controls the test hydraulic pump station 3 and the load hydraulic pump station 4, so that the oil cylinder to be detected is detected, and meanwhile, the PLC controller 107 collects and stores response signals fed back by the force sensor 207, the pressure sensor assembly 7 and the displacement sensor in the test process as test data, and a test conclusion is obtained through the test data.
As shown in fig. 2, the positioning and supporting device includes a first support 203 fixedly installed on the workbench 2 and detachably and fixedly connected to the fixed end of the oil cylinder to be tested, and a second support 204 installed on the workbench and used for supporting the cylinder barrel of the oil cylinder to be tested.
The fixed end of the oil cylinder to be tested is detachably and fixedly connected with the first support 203, and the telescopic end of the oil cylinder to be tested is also detachably and fixedly connected with the connecting piece 206, wherein the specific detachable and fixed connection mode is determined according to the structural characteristics of the oil cylinder to be tested;
in the prior art, the connection mode of the oil cylinder includes a base type, a flange type, an earring type, a pin type, a ball head type, and the like, so the corresponding first support 203 and the corresponding connecting piece 206 can be arranged according to the connection mode of the oil cylinder to be measured;
because the connected mode of driver's cabin upset hydro-cylinder is the trunnion type usually, promptly the stiff end of the hydro-cylinder that awaits measuring and the tip of flexible end all are provided with the trunnion, so in this embodiment, as shown in fig. 2, first support 203 with all corresponding being provided with trunnion support piece on the connecting piece 206, make the stiff end of the hydro-cylinder that awaits measuring with realize detachable fixed connection through the round pin hub connection between the first support 203, make the flexible end of the hydro-cylinder that awaits measuring with also realize detachable fixed connection through the round pin hub connection between the connecting piece 206.
As shown in fig. 2, a first slide rail 201 and a second slide rail 202 arranged along the length direction of the load cylinder 5 are arranged on the workbench 2, and the connecting member 206 is mounted on the first slide rail 201 and can slide linearly and reciprocally along the first slide rail 201; the second support 204 is mounted on the second slide rail 202 and can slide linearly and reciprocally along the second slide rail 202.
By arranging the first slide rail 201, the connecting element 206 is mounted on the first slide rail 201 and can slide linearly and reciprocally along the first slide rail 201; in the test process, the load oil cylinder 5 and the vibration of the oil cylinder to be tested are reduced, and then the test data error caused by the vibration of the load oil cylinder 5 and the oil cylinder to be tested is reduced, the stability of the cab turnover oil cylinder test bed is improved, and the test precision is improved.
Through setting up second slide rail 202, realized the relative position between second support 204 and the hydro-cylinder that awaits measuring is adjustable, in order to make things convenient for according to various the length and the flexible stroke of the hydro-cylinder that awaits measuring adjust the hydro-cylinder that awaits measuring is in the support position on workstation 2, improved the commonality and the stability of driver's cabin upset hydro-cylinder test bench.
As shown in fig. 1, the frame 1 is constructed by aluminum alloy sections, the hollow-out part of the frame 1 is sealed by a steel plate 102, a protective cover is formed on the workbench 2, the oil cylinder to be detected, the load oil cylinder 5, the positioning and supporting device, the connecting piece 206, the force sensor 207 and the displacement sensor are all arranged in the protective cover, and the protective cover is provided with a safety door 101 for installing and detaching the oil cylinder to be detected.
Further, one end of the connecting piece 206 is fixedly connected with the force sensor 207, the other end of the connecting piece is connected with a pin shaft of a telescopic end of the oil cylinder to be detected, and a first proximity switch 20601 is arranged on the connecting piece 206; the first support 203 is connected with a fixed end pin shaft of the oil cylinder to be tested, and a second proximity switch 20301 is arranged on the first support 203; the safety door is provided with an interlocking switch; the first proximity switch, the second proximity switch and the interlock switch are all electrically connected with the control cabinet.
The first proximity switch 20601 is connected when the connecting piece 206 is connected with the pin shaft of the telescopic end of the oil cylinder to be tested in place; the second proximity switch 20301 is switched on when the first supporting seat 203 is connected with the fixed end pin shaft of the oil cylinder to be tested in place; the interlock switch is turned on when the safety door is closed;
when any one of the first proximity switch 20601, the second proximity switch 20301 and the chain switch is turned off, the power supply control circuit of the control cabinet 8 is turned off, and the test hydraulic pump station 3 and the load hydraulic pump station 4 cannot operate; when all of the first proximity switch 20601, the second proximity switch 20301, and the interlock switch are turned on, the power control circuit of the control cabinet 8 is turned on.
Therefore, the first proximity switch 20601, the second proximity switch 20301 and the interlocking switch form interlocking protection, so that the cab turnover oil cylinder test bed can only be installed in place on the connecting piece 206 and the first support 203 when the fixed end and the telescopic end of the oil cylinder to be tested correspond to each other respectively, and after the safety door 101 is closed, the test can be started to perform detection, so that personal injury caused by misoperation of a tester is prevented.
As shown in fig. 1, an alarm lamp 109 is further disposed on the table 2, the first proximity switch 20601, the second proximity switch 20301 and the interlock switch are all electrically connected to the alarm lamp, and when any one of the first proximity switch 20601, the second proximity switch 20301 and the interlock switch is turned off, the alarm lamp is turned on to give an alarm.
As shown in fig. 1, a plurality of casters, preferably, in this embodiment, each caster is a formalin caster 103, is disposed at the bottom end of the machine frame 1.
As shown in fig. 1, in the present embodiment, an oil receiving pan 9 is preferably provided below the frame 1.
As shown in fig. 1, in this embodiment, preferably, a support 208 for temporarily placing the cylinder to be tested is further disposed on the workbench 2, wherein the support 208 is located outside the protective cover.
As shown in fig. 3, the frame 1 is further provided with a main oil tank 104, and the main oil tank 104 is provided with an oil well pump 105; the main oil tank 104 is used for storing hydraulic oil, the oil-well pump 105 is used for conveying the hydraulic oil in the main oil tank 104 to the test hydraulic pump station 3 or the load hydraulic pump station 4 so as to supplement the hydraulic oil in the oil tank of the test hydraulic pump station 3 or the load hydraulic pump station 4.
As shown in fig. 3, a dirty oil tank 106 for recovering dirty oil in the test hydraulic pump station 3 and the load hydraulic pump station 4 is further disposed on the rack 1.
In this embodiment, the main oil tank 104, the oil pump 105, and the dirty oil tank 106 are all disposed below the workbench 2.
The cab turnover oil cylinder test bed provided by the embodiment at least has the following technical effects or advantages:
1. the testing hydraulic pump station and the first oil way assembly 6 are used for driving the oil cylinder to be tested (including but not limited to a differential follow-up oil cylinder, a non-differential follow-up oil cylinder and a plunger type oil cylinder), the pressure sensor assembly 7 is used for detecting the working pressure of the oil cylinder to be tested in real time in the driving process, the load oil cylinder 5 is used for carrying out simulation loading on the oil cylinder to be tested so as to simulate the working condition of the oil cylinder to be tested, and then the force sensor 207, the displacement sensor and the pressure sensor assembly 7 are used for acquiring data required by a test so as to complete the detection of the oil cylinder to be tested, wherein the detection which can be completed comprises but not limited to stroke detection, high-pressure sealing detection, tensile strength detection, creep amount detection and the like; the cab turnover oil cylinder test bed is strong in universality, multiple in detectable items and high in detection efficiency, and solves the problems that when an existing oil cylinder test platform tests a turnover oil cylinder of a cab, the universality is low, the detection efficiency is low, and the detection cost is high.
2. The automatic detection of the performance of the oil cylinder to be detected is realized by adopting sensors (namely, the pressure sensor assembly 7, the force sensor 207 and the displacement sensor) and combining a PLC (namely, the PLC controller 107), the PLC controller 107 controls the control cabinet 8 according to an excitation signal by inputting the excitation signal on the HMI panel 108, so as to further control the test hydraulic pump station 3 and the load hydraulic pump station 4, so that the PLC controller 107 collects and stores response signals fed back by the force sensor 207, the pressure sensor assembly 7 and the displacement sensor in the test process as test data while detecting the oil cylinder to be detected, and obtains a test conclusion according to the test data.
3. By arranging the first slide rail 201, the connecting element 206 is mounted on the first slide rail 201 and can slide linearly and reciprocally along the first slide rail 201; in the test process, the vibration of the load oil cylinder 5 and the oil cylinder to be tested is reduced, so that the test data error caused by the vibration of the load oil cylinder 5 and the oil cylinder to be tested is reduced, the stability of the cab tilting oil cylinder test bed is improved, and the test precision is improved; through setting up second slide rail 202, realized the relative position between second support 204 and the hydro-cylinder that awaits measuring is adjustable, in order to make things convenient for according to various the length and the flexible stroke of the hydro-cylinder that awaits measuring adjust the hydro-cylinder that awaits measuring is in the support position on workstation 2, improved the commonality and the stability of driver's cabin upset hydro-cylinder test bench.
4. Utilize first proximity switch 20601 second proximity switch 20301 and chain switch forms chain protection, makes driver's cabin upset hydro-cylinder test bench only can the stiff end and the flexible end of the hydro-cylinder that awaits measuring correspond respectively connecting piece 206 with install in place on the first support 203, just emergency exit 101 closes the back, can begin to detect, prevents that the testing personnel maloperation from causing bodily injury.
Claims (10)
1. The utility model provides a driver's cabin upset hydro-cylinder test bench which characterized in that: the device comprises a rack and a workbench arranged on the rack, wherein a positioning and supporting device for positioning and supporting the oil cylinder to be tested on the workbench is arranged on one side of the workbench, a load oil cylinder is fixedly arranged on the opposite side of the workbench, a force sensor is fixedly connected to the telescopic end of the load oil cylinder, a connecting piece is fixedly connected to one end, away from the load oil cylinder, of the force sensor, and one end, away from the force sensor, of the connecting piece is detachably and fixedly connected with the telescopic end of the oil cylinder to be tested;
the rack is also provided with a test hydraulic pump station for driving the oil cylinder to be tested and a load hydraulic pump station for driving the load oil cylinder;
a first oil way assembly for conveying hydraulic driving force is arranged between the test hydraulic pump station and the oil cylinder to be tested;
a second oil way assembly for conveying hydraulic driving force is arranged between the load hydraulic pump station and the load oil cylinder;
the first oil way assembly is provided with a pressure sensor assembly for feeding back the working oil pressure of the oil cylinder to be detected;
and a displacement sensor for feeding back the telescopic stroke of the oil cylinder to be detected is arranged on the workbench.
2. The cab tilting cylinder test stand of claim 1, wherein: the first oil way assembly comprises a first oil pipe and a second oil pipe, and the first oil pipe and the second oil pipe are used for communicating the test hydraulic pump station with the oil way interface of the oil cylinder to be tested.
3. The cab roll-over cylinder test stand of claim 2, wherein: the pressure sensor assembly comprises two pressure sensors, the two pressure sensors are respectively arranged on the first oil pipe and the second oil pipe, and the pressure sensors are used for feeding back the oil pressure in the first oil pipe or the oil pressure in the second oil pipe.
4. The cab roll-over cylinder test stand of claim 3, wherein: each pressure sensor is provided with a pressure gauge.
5. The cab roll-over cylinder test stand of claim 1, wherein: one side of workstation is provided with and is used for control test hydraulic power unit with load hydraulic power unit's switch board, be provided with the PLC controller in the frame, be provided with the HMI panel on the PLC controller, the HMI panel the switch board the pressure sensor subassembly the force sensor with displacement sensor all with the PLC controller electricity links.
6. The cab roll-over cylinder test stand of claim 1, wherein: the positioning and supporting device comprises a first support fixedly arranged on the workbench and used for being detachably and fixedly connected with the fixed end of the oil cylinder to be tested, and a second support arranged on the workbench and used for supporting the cylinder barrel of the oil cylinder to be tested.
7. The cab roll-over cylinder test stand of claim 6, wherein: the workbench is provided with a first slide rail and a second slide rail which are arranged along the length direction of the load oil cylinder, and the connecting piece is arranged on the first slide rail and can slide linearly and reciprocally along the first slide rail; the second support is arranged on the second sliding rail and can slide along the second sliding rail in a linear reciprocating manner.
8. The cab roll-over cylinder test stand of claim 1, wherein: the protection cover is arranged on the workbench, the oil cylinder to be tested, the load oil cylinder, the positioning and supporting device, the connecting piece, the force sensor and the displacement sensor are arranged in the protection cover, and the protection cover is provided with a safety door for installing and disassembling the oil cylinder to be tested.
9. The cab roll-over cylinder test stand of claim 1, wherein: the bottom of frame is provided with a plurality of truckles.
10. The cab tilting cylinder test stand of claim 1, wherein: an oil receiving disc is arranged below the rack.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222258830.7U CN218118207U (en) | 2022-08-26 | 2022-08-26 | Cab turnover oil cylinder test bed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222258830.7U CN218118207U (en) | 2022-08-26 | 2022-08-26 | Cab turnover oil cylinder test bed |
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| CN218118207U true CN218118207U (en) | 2022-12-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145834A (en) * | 2023-10-23 | 2023-12-01 | 莱州兴达液压机械科技有限公司 | Oil cylinder sealing piece test bed |
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2022
- 2022-08-26 CN CN202222258830.7U patent/CN218118207U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145834A (en) * | 2023-10-23 | 2023-12-01 | 莱州兴达液压机械科技有限公司 | Oil cylinder sealing piece test bed |
| CN117145834B (en) * | 2023-10-23 | 2024-01-05 | 莱州兴达液压机械科技有限公司 | Oil cylinder sealing piece test bed |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A cab flipping oil cylinder test bench Granted publication date: 20221223 Pledgee: Agricultural Bank of China Limited Shiyan Yunyang Branch Pledgor: DONGFENG SPECIAL PARTS Co.,Ltd. Registration number: Y2024980005588 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |