CN209894482U - Joint bearing low-temperature wear test device with combined clamp assembly - Google Patents
Joint bearing low-temperature wear test device with combined clamp assembly Download PDFInfo
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- CN209894482U CN209894482U CN201921144902.7U CN201921144902U CN209894482U CN 209894482 U CN209894482 U CN 209894482U CN 201921144902 U CN201921144902 U CN 201921144902U CN 209894482 U CN209894482 U CN 209894482U
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Abstract
The utility model provides a joint bearing low-temperature abrasion test device with a combined clamp component, the combined type clamp comprises a base, a temperature box, a combined type clamp assembly, a radial force loading assembly, a monitoring assembly, a power assembly and a rack, wherein the combined type clamp assembly comprises a top block, a loading plate, a test accompanying bearing seat, a mandrel, a test accompanying bearing, an end cover and a locking component, the components are independent detachable components, the clamping of the life test of the knuckle bearings with different diameters can be realized by replacing the mandrel, the top block or the loading plate, the utilization rate and the universality of the test fixture are improved, additionally, the utility model discloses a modular fixture subassembly has adopted the load plate hole to increase the unilateral flange, reduces kicking block thickness, and structural design such as the fixed examination bearing of accompanying in coordination of flange and end cover improves, has effectively avoided easy dabber deformation or the phenomenon of rupture that takes place among the joint bearing wear test process.
Description
Technical Field
The utility model belongs to the technical field of mechanical equipment reliability appraisal, concretely relates to joint bearing low temperature wear test device with modular fixture subassembly.
Background
The low-temperature wear test of the joint bearing is used for evaluating the wear resistance index of the joint bearing in a low-temperature environment, and is an important criterion for judging the design, research, development, customization and model selection of the joint bearing model product. In the low-temperature abrasion identification test process, the control of temperature, load and reciprocating motion state is required to be controlled in real time, and the running period of the whole test process is long, so that a test system with high automation degree is required to realize that external environmental conditions, load conditions and running conditions can meet the requirements of the identification test outline in real time, the abrasion loss and the temperature of a tested bearing can be monitored in real time, the influence of human factors on the test result is reduced, and the accuracy of test result judgment is ensured.
However, the existing system has the following problems: (1) the existing life test fixture structure can not ensure the rigidity of the mandrel, the mandrel is easy to brittle fracture under large bending moment generated under the action of large radial load, taking an aviation low-speed heavy-load wide-series self-lubricating knuckle bearing as an example, the radial load of the life test is 1.3-1.5 times of that of other types of knuckle bearings with the same inner diameter, and the mandrel is easy to brittle fracture; (2) the existing life test clamp has poor design universality, and when the life test of different types of knuckle bearings is completed, clamps of various specifications are needed, so that the huge waste of funds, time and resources is caused; (3) the test fixture is heavy, the space of the temperature box is relatively narrow, the tested product and the test fixture are not easy to mount and fix, the mounting process is relatively complex and laborious, and the test preparation time is greatly prolonged.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a but anchor clamps subassembly equipment and exchangeable joint bearing low temperature wear test device to can carry out the wear test to the joint bearing of different models.
In order to solve the technical problem, the utility model provides a joint bearing low temperature wear test device with modular fixture subassembly, it includes temperature box, base, modular fixture subassembly, radial force loading subassembly, monitoring subassembly, power component and rack, modular fixture subassembly includes kicking block, loading plate, accompanies examination bearing frame, dabber, accompanies examination bearing, end cover and retaining member, the base fixed mounting is in the bottom surface of temperature box, accompany examination bearing frame has two, and its core is the round hole structure, installs on the base, and two the centre of a circle line of accompanying the inside round hole of examination bearing frame is on a parallel with the front end face of temperature box, the dabber is located on the centre of a circle line of accompanying the inside round hole of examination bearing frame, is being tried joint bearing and is installed on the dabber, the kicking block has a plurality ofly, install in on the dabber, and the two end parts are positioned at the left end and the right end of the tested joint bearing, the inner ring of the tested joint bearing is axially positioned, the test-accompanying bearing is arranged in the inner round hole of the test-accompanying bearing seat, the inner ring of the inner round hole is in clearance fit with the outer ring of the test-accompanying bearing, the inner round hole faces towards the first surface of the tested joint bearing and is provided with a flange, the second surface opposite to the tested joint bearing is blocked by the end cover, the flange and the end cover are used for axially positioning the outer ring of the test-accompanying bearing, and the locking part is used for clamping the two jacking blocks from the left side and from the right side to the inner ring of the tested joint bearing.
The radial force loading assembly comprises an electro-hydraulic oil cylinder, a first flange and a second flange, the first flange is arranged at the first end of the electro-hydraulic oil cylinder, the second flange is arranged at the second end of the electro-hydraulic oil cylinder, the electro-hydraulic oil cylinder is fixedly connected to the top end of the rack through the first flange, the electro-hydraulic oil cylinder is connected with the loading plate through the second flange, a round hole is formed in the loading plate, and the tested knuckle bearing is installed on the loading plate through the round hole.
The monitoring assembly comprises a displacement sensor and a temperature sensor, the displacement sensor is arranged on the outer side of the top end of the rack and connected with the tail end of the electro-hydraulic oil cylinder, and the temperature sensor is arranged in the temperature box and mounted at the second end of the loading plate. The power component comprises a motor, a motor base, a lead screw, a hand wheel, a coupler, a box penetrating shaft, a flange shaft and a motor shaft, wherein an adapter is installed at the second end of the core shaft, the adapter and the box penetrating shaft penetrating the temperature box are connected, a rubber sleeve is installed on the outer ring of the box penetrating shaft, the rubber sleeve is fixedly installed on the temperature box, the second end of the box penetrating shaft is connected with the flange shaft, the flange shaft passes through the coupler and the motor shaft of the motor, the motor is arranged on the motor base, the second end of the motor base is connected with a fixing device through the lead screw, and the hand wheel is arranged on the lead screw. The locking piece is clamped through a nut, the nut is installed on the mandrel, the second end of the loading plate is provided with a light reflecting strip, the controller is connected with the motor, the electro-hydraulic cylinder, the displacement sensor and the temperature sensor through cables, and the controller is connected with a temperature control device of the temperature box.
Preferably, the modular fixture assembly further comprises a bushing, the bushing is a cylindrical hollow tube, and an inner ring of the bushing is in clearance fit with the outer surface of the mandrel.
Preferably, the second end circular hole of the loading plate is in clearance fit with the outer ring of the tested knuckle bearing, and a first side of the second end circular hole of the loading plate is provided with a flange capable of axially fixing the outer ring of the tested knuckle bearing.
Preferably, the two ejector blocks are respectively provided with a central hole, the inner ring of the central hole is in clearance fit with the mandrel, and the two ejector blocks are respectively positioned on the left side and the right side of the tested knuckle bearing.
Preferably, two accompany examination bearing frame axial symmetry and install on the base, accompany examination bearing frame and be equipped with and be used for the installation accompany the hole of examination bearing, accompany examination bearing inner race with kicking block clearance fit.
Preferably, the motor is fixed on the motor base, the lead screw and the hand wheel are connected with the motor base, the lead screw can drive the motor base to move, and the hand wheel is provided with a mechanical lock for fixing the position of the motor base.
Further, be equipped with the spout on the base, accompany examination bearing frame fixed mounting in on the spout, and two accompany examination bearing frame and can follow the spout and adjust its relative distance.
Contrast prior art, the utility model discloses following beneficial effect has:
1. the clamp is easy to disassemble and assemble and has strong universality. The jacking block, the loading plate and the bush in the utility model are independent parts, the disassembly is convenient, the clamping of the service life test of the joint bearings with different width series can be realized by replacing the bush, the clamping of the service life test of the joint bearings with different diameters can be realized by replacing the mandrel, the jacking block and the loading plate, the utilization rate of the test fixture is high, and the universality is good;
2. the structure atress is reasonable, adopts the load plate hole to increase unilateral flange, reduces the tapering of kicking block, flange and end cover fixed structural design improvement such as accompanying the examination bearing in coordination, has effectively avoided the dabber that highly easily takes place among the high-speed heavy load self-lubricating bearing test process to warp or fracture.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the relationship structure of each component of the present invention; and
fig. 3 is a schematic diagram of the control circuit of the present invention.
Detailed Description
The technical contents, structural features, and achieved objects and effects of the present invention will be described in detail with reference to the accompanying drawings.
The utility model provides a joint bearing low temperature wear test device with modular fixture subassembly, as shown in figures 1-3, including temperature box 1, base 2, modular fixture subassembly 3, radial force loading subassembly 4, monitoring subassembly 5, power component 6 and rack 7, modular fixture subassembly 3 includes kicking block 31, loading plate 32, accompany examination bearing frame 33, dabber 34, accompany examination bearing 35, end cover 36 and retaining member 37, base 2 is fixedly mounted on the bottom surface of temperature box 1, accompany examination bearing frame 33 has two, and its core is the round hole structure, install on base 2, and the centre of a circle line of the inside round hole of two accompany examination bearing frame 33 is on a parallel with the front end terminal surface of temperature box 1, dabber 34 is located on the centre of a circle line of the inside round hole of accompanying examination bearing frame 33, it installs on dabber 34 to be examined joint bearing 9, kicking block 31 has a plurality ofly, install on dabber 34, and be located both ends about the joint bearing 9 of being examined, carry out axial positioning to the inner circle of joint bearing 9 of being examined, accompany the examination bearing 35 and install in the inside round hole of accompanying the examination bearing frame 33, and the inner circle of inside round hole and the outer lane clearance fit of accompanying the examination bearing 35, inside round hole is equipped with the flange towards the first face of joint bearing 9 of being examined, the second face relative with the joint bearing 9 of being examined is carried out the shutoff by end cover 36, flange and end cover 36 form axial positioning to the outer lane of accompanying the examination bearing 35, retaining member 37 is used for pressing from the inner circle of two kicking blocks 31 tight joint bearing 9 of being examined from the left side and from the right side clamp.
The radial force loading assembly 4 comprises an electro-hydraulic cylinder 41, a first flange 42 and a second flange 43, the first flange 42 is arranged at the first end of the electro-hydraulic cylinder 41, the second flange 43 is arranged at the second end of the electro-hydraulic cylinder 41, the electro-hydraulic cylinder 41 is fixedly connected to the top end of the rack 7 through the first flange 42, the electro-hydraulic cylinder 41 is connected with the loading plate 32 through the second flange 43, a round hole is formed in the loading plate 32, and the tested knuckle bearing 9 is mounted on the loading plate through the round hole.
The monitoring assembly 5 comprises a displacement sensor 51 and a temperature sensor 52, wherein the displacement sensor 51 is arranged on the outer side of the top end of the rack 7 and connected with the tail end of the electro-hydraulic oil cylinder 41, and the temperature sensor 52 is arranged inside the temperature box 1 and mounted at the second end of the loading plate 32. Power component 6 includes motor 61, motor cabinet 62, lead screw 63, hand wheel 64, shaft coupling 65, wear case axle 66, flange axle 67 and motor shaft 68, adapter 13 is installed to the second end of dabber 34, adapter 13 links to each other with the case axle 66 that wears that passes temperature box 1, wear the outer lane of case axle 66 and install rubber sleeve 8, and rubber sleeve 8 fixed mounting is on temperature box 1, the second end of wearing case axle 66 links to each other with flange axle 67, flange axle 67 passes through shaft coupling 65 and links to each other with motor 61's motor shaft 68, motor 61 sets up on motor cabinet 62, the second end of motor cabinet 62 is connected with fixing device through lead screw 63, be equipped with hand wheel 64 on the lead screw 63. The locking piece 37 is clamped through the nut 10, the nut 10 is installed on the mandrel 34, the reflective strip 12 is installed at the second end of the loading plate 32, the controller 14 is connected with the motor 61, the electro-hydraulic cylinder 41, the displacement sensor 51 and the temperature sensor 52 through cables, and the controller 14 is connected with a temperature control device of the temperature box 1.
Modular fixture assembly 3 further includes a bushing 11, wherein bushing 11 is a cylindrical hollow tube, and an inner ring of bushing 11 is in clearance fit with an outer surface of mandrel 34. The second end round hole of the loading plate 32 is in clearance fit with the outer ring of the tested oscillating bearing 9, and a first side of the second end round hole of the loading plate 32 is provided with a flange capable of axially fixing the outer ring of the tested oscillating bearing 9. Two ejector blocks 31 are respectively provided with a central hole, the inner ring of the central hole is in clearance fit with the mandrel 34, and the two ejector blocks 31 are respectively positioned on the left side and the right side of the tested knuckle bearing 9.
Two accompany examination bearing frame 33 axial symmetry and install on base 2, accompany examination bearing frame 33 and be equipped with the hole that is used for installing and accompany examination bearing 35, accompany examination bearing 35 inner circle and kicking block 31 clearance fit. The motor 61 is fixed on a motor base 62, the lead screw 63 and the hand wheel 64 are connected with the motor base 62, the lead screw 63 can drive the motor base 62 to move, and the hand wheel 64 is provided with a mechanical lock for fixing the position of the motor base 62. Be equipped with spout 15 on the base 2, accompany examination bearing frame 33 fixed mounting on spout 15, and two accompany examination bearing frames 33 and can adjust its relative distance along spout 15.
In the embodiment, the core shaft 34 is in clearance fit with the inner ring of the tested knuckle bearing 9 by 0.013-0.038 mm; the mandrel 34 is made of 9Cr18 bearing steel; the material of the loading plate 32 is Q275 carbon steel; other test fixture materials in the temperature box 1 are all stainless steel; the special-shaped shaft end of the mandrel 34 and the central special-shaped hole of the special-shaped adapter are oval; the through hole on the side surface of the loading plate 32 is a threaded hole of M5; the thickness of the inner hole flange of the test bearing seat 33 is 0.7 mm; the thickness of the inner hole flange of the loading plate 32 is 0.7 mm; the surface hardness of the mandrel 34 should be no less than 50 HRC; the test-accompanying bearing 35 adopts a double-row self-aligning rolling bearing; the lubrication mode of the test-accompanying bearing 35 is grease lubrication; the temperature sensor 52 is a thermocouple sensor; the displacement sensor 51 is a laser displacement sensor; the rubber sleeve 8 is made of Polytetrafluoroethylene (PTFE) and cotton yarn is used for properly sealing a gap between the rubber sleeve 8 and the box penetrating shaft 66.
The motor 61 is fixed on the motor base 62, and the roller and the raceway are installed to the motor base 62 lower extreme, can realize the removal in the certain limit along the axial. The motor base 62 is manually driven by a lead screw 63 and a hand wheel 64, and the hand wheel 64 is provided with a mechanical lock to ensure the fixation of the motor 61 in the working process.
Specifically, the motor shaft 68 is connected with the motor 61, the rotation motion of the motor 61 is transmitted to the joint bearing test fixture in the temperature box 1 through the coupler 65, the flange shaft 67 and the box penetrating shaft 66, and the rotation speed of the tested joint bearing 9 is accurately controlled by controlling the rotation speed of the motor 61.
The electro-hydraulic cylinder 41 is arranged at the upper end of the rack 7 and used for providing a radial load effect on the joint bearing test combined type clamp assembly 3, the electro-hydraulic cylinder 41 is controlled by the controller 14 through a cable, a flange plate of the electro-hydraulic cylinder 41 penetrates through the temperature box 1 to be connected with the loading plate 32 and acts on the outer ring of the tested joint bearing 9 through force transmission of the loading plate 32, a pressure sensor in the electro-hydraulic cylinder 41 feeds the load condition back to the controller 14, and then the accurate control of applying the radial load to the tested joint bearing 9 is achieved.
The inner ring of the loading plate 32 is in clearance fit with the tested spherical plain bearing 9. The loading plate 32 is connected with a loading device, and applies radial load to the tested knuckle bearing 9 according to the specification of a radial load section. The loading plate 32 is designed with a flange which can circumferentially fix one surface of the outer ring of the tested oscillating bearing 9, and the other surface is axially clamped through the main shaft of the testing machine.
The jacking block 31 penetrates through the mandrel 34, and is matched with the nut 10, the locking piece 37 and the bush 11 to axially clamp the inner ring of the tested knuckle bearing 9, and the clamping force is not too large, so that the increase of friction torque caused by the deformation of the inner ring of the tested knuckle bearing 9 is avoided, and the abrasion of the self-lubricating gasket is accelerated. The height of the top block 31 should be as small as possible, so that the distance between the two fulcrums of the test bearing 35 is shortened, and the bending moment borne by the core shaft 34 is reduced.
Accompany examination bearing frame 33 through T type groove and bolt erection fixation on base 2, accompany examination bearing frame 33 hole one side design and have the flange, another side circumference equipartition screw hole connection end cover 36, accompany examination bearing 35 and install in the hole and by flange and 36 axial fixings of end cover. The accompany examination bearing 35 is as the accompany examination bearing in the life test process, is fixed on accompanying examination bearing frame 33, for being tried joint bearing 9 and providing radial support, helps accompanying examination bearing 35 inner circle and rotates.
The mandrel 34 and the inner hole of the tested knuckle bearing 9 are in clearance fit, a thread is processed at one end, the inner ring of the tested knuckle bearing 9 is clamped through the ejector block 31 and the nut 10, a special-shaped end face is processed at the other end, and the special-shaped end face is connected with the box penetrating shaft 66 through the thread connection between the adapter 13, so that the tested knuckle bearing 9 can realize that the inner ring periodically finishes reciprocating swing according to the specification of a test outline.
The bushing 11 is a cylindrical hollow tube with an inner ring in clearance fit with the outer surface of the mandrel 34. By replacing the bush 11 with corresponding length, the joint bearing can adapt to different width series to complete the identification test. The special-shaped through hole in the center of the adapter 13 is matched with the special-shaped end face of the mandrel 34 to transmit torque. A plurality of threaded holes are uniformly distributed in the circumferential direction of the adapter 13 and are connected with a flange plate penetrating through the box shaft 66 through threaded connection. Wear case axle 66 and pass the outer wall of temperature box 1, realize the connection of the inside and outside structure of temperature box 1, wear case axle 66 and pass the box of temperature box 1 through rubber sleeve 8 to be the loose fit with rubber sleeve 8, rubber material can reduce the wearing and tearing that take place when wearing case axle 66 to pass temperature box 1, also can reduce the quick heat exchange of incasement temperature and external, guaranteed the constancy of the inside temperature of predetermineeing of temperature box 1 well.
The coupling 65 can effectively reduce the bending moment caused by the operating vibration and the mounting non-concentricity of the motor 61, and improve the accuracy and the precision of the identification test result. The temperature sensor 52 is installed in a through hole formed in the side surface of the loading plate 32, monitors the temperature of the outer ring of the knuckle bearing 9 under test in real time, and immediately stops the identification test when the temperature exceeds a predetermined value, and inspects the knuckle bearing 9 under test and the test system. The displacement sensor 51 is installed at the top end of the rack 7, the radial abrasion loss of the tested knuckle bearing 9 is monitored in real time through the collection of the radial displacement of the loading plate 32, the bottom end of the loading plate 32 extends out of the reflective strip 12 to be matched with the displacement sensor 51 for use, and the reflective strip 12 is fixedly connected with the loading plate 32 through threads.
As shown in fig. 3, the controller 14 is connected to the motor 61, the temperature box 1, the electro-hydraulic cylinder 41, the displacement sensor 51, and the temperature sensor 52 via cables. The controller 14 sends instructions to control the rotating speed, the rotating direction and the running time of the motor 61, the temperature value, the temperature change speed and the heat preservation time of the temperature box 1 and the output load of the electro-hydraulic oil cylinder 41. Meanwhile, the controller 14 monitors and records the displacement value and the temperature value acquired by the displacement sensor 51 and the temperature sensor 52 in real time.
The assembly and disassembly test system for the self-lubricating joint bearing to assemble and disassemble the tested piece in the low-temperature wear test process is simple and convenient to operate and high in practical value.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the present invention, and it should be understood that various modifications and decorations can be made by those skilled in the art without departing from the technical spirit of the present application and that these modifications and decorations should also be regarded as the scope of the present application.
Claims (7)
1. A low-temperature wear test device for a joint bearing provided with a combined clamp component is characterized by comprising a temperature box, a base, a radial force loading component, a monitoring component, a power component and a rack,
the combined type clamp assembly comprises a top block, a loading plate, test accompanying bearing seats, a mandrel, test accompanying bearings, end covers and locking pieces, wherein the base is fixedly installed on the bottom surface of the temperature box, the number of the test accompanying bearing seats is two, the core parts of the test accompanying bearing seats are of circular hole structures and are installed on the base, the circle center connecting line of the inner circular holes of the two test accompanying bearing seats is parallel to the front end face of the temperature box, the mandrel is arranged on the circle center connecting line of the inner circular holes of the test accompanying bearing seats, the tested knuckle bearings are installed on the mandrel, the top blocks are multiple and are installed on the mandrel and are positioned at the left end and the right end of the tested knuckle bearing, the inner ring of the tested knuckle bearing is axially positioned, the test accompanying bearings are installed in the inner circular holes of the test accompanying bearing seats, and the inner ring of the inner circular holes is in clearance fit with the outer ring of the test accompanying bearings, a flange is arranged on the first surface, facing the tested knuckle bearing, of the inner round hole, a second surface, opposite to the tested knuckle bearing, of the inner round hole is blocked by the end cover, the flange and the end cover axially position an outer ring of the test-accompanying bearing, and the locking piece is used for clamping the inner ring of the tested knuckle bearing by the two ejector blocks from the left side and from the right side;
the radial force loading assembly comprises an electro-hydraulic oil cylinder, a first flange and a second flange, the first flange is arranged at the first end of the electro-hydraulic oil cylinder, the second flange is arranged at the second end of the electro-hydraulic oil cylinder, the electro-hydraulic oil cylinder is fixedly connected to the top end of the rack through the first flange, the electro-hydraulic oil cylinder is connected with the loading plate through the second flange, a round hole is formed in the loading plate, and the tested knuckle bearing is installed on the loading plate through the round hole;
the monitoring assembly comprises a displacement sensor and a temperature sensor, the displacement sensor is arranged on the outer side of the top end of the rack and connected with the tail end of the electro-hydraulic oil cylinder, and the temperature sensor is arranged in the temperature box and mounted at the second end of the loading plate;
the power assembly comprises a motor, a motor base, a lead screw, a hand wheel, a coupler, a box penetrating shaft, a flange shaft and a motor shaft, wherein an adapter is installed at the second end of the core shaft, the adapter is connected with the box penetrating shaft penetrating through the temperature box, a rubber sleeve is installed on the outer ring of the box penetrating shaft, the rubber sleeve is fixedly installed above the temperature box, the second end of the box penetrating shaft is connected with the flange shaft, the flange shaft is connected with the motor shaft of the motor through the coupler, the motor is arranged on the motor base, the second end of the motor base is connected with a fixing device through the lead screw, and the lead screw is provided with the hand wheel; and
the locking piece is clamped through a nut, the nut is installed on the mandrel, the second end of the loading plate is provided with a light reflecting strip, the controller is connected with the motor, the electro-hydraulic cylinder, the displacement sensor and the temperature sensor through cables, and the controller is connected with a temperature control device of the temperature box.
2. The low-temperature wear test device for the oscillating bearing provided with the modular fixture assembly as recited in claim 1, wherein the modular fixture assembly further comprises a bushing, the bushing is a cylindrical hollow tube, and an inner ring of the bushing is in clearance fit with an outer surface of the mandrel.
3. The low-temperature wear test device for the oscillating bearing provided with the combined clamp assembly as claimed in claim 1, wherein the second end circular hole of the loading plate is in clearance fit with the outer ring of the tested oscillating bearing, and a first side of the second end circular hole of the loading plate is provided with a retaining edge capable of axially fixing the outer ring of the tested oscillating bearing.
4. The low-temperature wear test device for the oscillating bearing provided with the combined clamp assembly as claimed in claim 3, wherein two of the ejector blocks are respectively provided with a central hole, an inner ring of the central hole is in clearance fit with the mandrel, and the two ejector blocks are respectively positioned on the left side and the right side of the tested oscillating bearing.
5. The low-temperature wear test device for the oscillating bearing with the combined clamp assembly as claimed in claim 3, wherein the two test accompanying bearing seats are axially and symmetrically arranged on the base, each test accompanying bearing seat is provided with an inner hole for installing the test accompanying bearing, and the inner ring of the test accompanying bearing is in clearance fit with the ejector block.
6. The low-temperature wear test device for the oscillating bearing provided with the modular fixture assembly as recited in claim 1, wherein the motor is fixed on the motor base, the lead screw and the hand wheel are connected with the motor base, the lead screw can drive the motor base to move, and the hand wheel is provided with a mechanical lock for fixing the position of the motor base.
7. The low-temperature wear test device for the oscillating bearing with the combined clamp assembly as claimed in claim 1, wherein a sliding groove is formed in the base, the test accompanying bearing seats are fixedly mounted on the sliding groove, and the relative distance between the two test accompanying bearing seats can be adjusted along the sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921144902.7U CN209894482U (en) | 2019-07-19 | 2019-07-19 | Joint bearing low-temperature wear test device with combined clamp assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921144902.7U CN209894482U (en) | 2019-07-19 | 2019-07-19 | Joint bearing low-temperature wear test device with combined clamp assembly |
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| CN209894482U true CN209894482U (en) | 2020-01-03 |
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| CN201921144902.7U Active CN209894482U (en) | 2019-07-19 | 2019-07-19 | Joint bearing low-temperature wear test device with combined clamp assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982731A (en) * | 2020-08-26 | 2020-11-24 | 徐州徐工挖掘机械有限公司 | Bushing friction wear test device |
| CN114252265A (en) * | 2022-01-25 | 2022-03-29 | 中国铁建重工集团股份有限公司 | Bearing working condition simulation test bed |
-
2019
- 2019-07-19 CN CN201921144902.7U patent/CN209894482U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982731A (en) * | 2020-08-26 | 2020-11-24 | 徐州徐工挖掘机械有限公司 | Bushing friction wear test device |
| CN111982731B (en) * | 2020-08-26 | 2023-09-26 | 徐州徐工挖掘机械有限公司 | Bushing friction and wear test device |
| CN114252265A (en) * | 2022-01-25 | 2022-03-29 | 中国铁建重工集团股份有限公司 | Bearing working condition simulation test bed |
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