CN221123276U - Axial movement and thrust bearing contact spot inspection device - Google Patents
Axial movement and thrust bearing contact spot inspection device Download PDFInfo
- Publication number
- CN221123276U CN221123276U CN202323079257.4U CN202323079257U CN221123276U CN 221123276 U CN221123276 U CN 221123276U CN 202323079257 U CN202323079257 U CN 202323079257U CN 221123276 U CN221123276 U CN 221123276U
- Authority
- CN
- China
- Prior art keywords
- gear shaft
- large gear
- thrust bearing
- plate
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007689 inspection Methods 0.000 title claims abstract description 27
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 13
- 239000010959 steel Substances 0.000 abstract description 13
- 230000005540 biological transmission Effects 0.000 description 11
- 230000000670 limiting effect Effects 0.000 description 3
- 241001584775 Tunga penetrans Species 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000005465 channeling Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model provides an axial movement and thrust bearing contact spot checking device, and relates to the technical field of bearing assembly. When the large gear shaft needs to be pushed, the pushing screw is in threaded connection with the operation hole, the pushing screw rotates and axially translates, and the pushing screw pushes against the connecting plate to push the large gear shaft to axially move; when the large gear shaft needs to be pulled, the pulling screw is fixedly connected to the connecting plate, the pulling screw is inserted into the operation hole in a sliding mode and is in threaded connection with the screwing nut, and when the screwing nut rotates relative to the pulling screw, the screwing nut can be pressed on the supporting plate to drive the pulling screw to move along the axial direction, and then the large gear shaft is pulled to move along the axial direction. The device can conveniently drive the large gear shaft to move along two axial directions, and can carry out contact spot inspection on the thrust bearing arranged on the large gear shaft during axial movement. Friction can be reduced by arranging steel balls during pushing, friction can be reduced by arranging thrust self-aligning roller bearings during pulling, and the efficiency is high and the strength is saved.
Description
Technical Field
The utility model relates to the technical field of bearing assembly, in particular to an axial movement and thrust bearing contact spot checking device.
Background
The structure containing the thrust bearing in mechanical equipment such as the speed reducer is used for bearing axial thrust and can be used for axial limiting of a transmission piece, and the application is very wide. In order to ensure the uniformity of contact of the thrust bearing and to adjust the position of the transmission member during assembly, the transmission member needs to be axially moved and limited without limiting rotation in the circumferential direction. For heavy devices, the weight of the transmission part is large, a large axial force is required to be used during movement, and when the axial movement is performed in a general mode, the tool can provide a large friction force for the transmission part, so that the rotation of the transmission part is very unfavorable.
The large-scale speed reducer comprises a box body, a large gear shaft, a thrust bearing, a sliding bearing and the like. The large gear shaft is a transmission piece with large weight and large size, is supported on the sliding bearing, has a clearance requirement with the thrust bearing, and is provided with a large gear, a thrust disc and an end face flange. When the large gear shaft is assembled, the axial channeling of the large gear shaft, namely the gap between the thrust disc and the two thrust bearings, is required to be checked, and meanwhile, the contact spots between the two end surfaces of the thrust disc and the thrust bearings are required to be checked, so that the uniformity of the thrust bearing axial thrust is ensured. In performing both of the above checks, it is necessary to axially move the large gear shaft back and forth. There is no better method for adjusting the axial movement of heavy equipment and the contact spot of a thrust bearing.
How to perform axial movement and contact spot inspection for heavy equipment is a technical problem that needs to be solved at present for those skilled in the art.
Disclosure of utility model
The utility model provides an axial movement and thrust bearing contact spot checking device which can check axial movement and contact spots of heavy equipment, and the specific scheme is as follows:
An axial movement and thrust bearing contact spot inspection apparatus comprising: the device comprises a supporting plate fixedly arranged on a box body, a connecting plate fixedly arranged on a large gear shaft, a pushing screw rod and a pulling screw rod; the supporting plate is provided with an operation hole in a penetrating way along the axial direction of the large gear shaft;
the pushing screw is used for being in threaded connection with the operation hole, and when the pushing screw is screwed, the pushing screw is used for contacting with and propping against the connecting plate and pushing the large gear shaft to move along the axial direction;
The pulling screw rod can be fixedly connected to the connecting plate, the pulling screw rod can be inserted into the operation hole in a sliding mode and is connected to the screwing nut in a threaded mode, and when the screwing nut rotates, the pulling screw rod can be pressed on the supporting plate, so that the pulling screw rod is pulled along the axial direction, and the large gear shaft is pulled to move along the axial direction.
Optionally, the device further comprises a pressure-bearing block which can be screwed in a connecting hole arranged on the connecting plate; the pressure-bearing block is used for propping against the end part of the pushing screw rod;
The pulling screw can be connected with the connecting hole in a threaded mode.
Optionally, conical or spherical pits are formed on the surface of the pressure-bearing block and the end part of the pushing screw, and steel balls are placed in the two opposite pits.
Optionally, a thrust self-aligning roller bearing and a baffle are arranged between the screwing nut and the supporting plate.
Optionally, the operation hole and the connection hole are located on an axis of the large gear shaft, and the push screw and the pull screw are selectively installed.
Optionally, the box further comprises an access board fixedly mounted on the box body, and the support plate is mounted on the access board.
Optionally, a spacer plate is interposed between the access plate and the support plate.
Optionally, the access board is fixedly connected to the box body through a plurality of bolts perpendicular to the axial direction.
Optionally, the butt strap comprises two flat plates arranged in parallel with each other.
Optionally, the support plate is fixed to the strap through a bolt, and the connecting plate is fixed to the large gear shaft through a bolt.
The utility model provides an axial movement and thrust bearing contact spot inspection device, wherein a supporting plate is provided with an operation hole in a penetrating manner along the axial direction of a large gear shaft; when the large gear shaft needs to be pulled, the pulling screw is fixedly connected to the connecting plate, the pulling screw is inserted into the operation hole in a sliding mode and is in threaded connection with the screwing nut, and when the screwing nut rotates relative to the pulling screw, the screwing nut can be pressed on the supporting plate to drive the pulling screw to move along the axial direction, and then the large gear shaft is pulled to move along the axial direction. The axial movement and thrust bearing contact spot inspection device provided by the utility model can conveniently drive the large gear shaft to move along two axial directions, and can inspect contact spots of the thrust bearing arranged on the large gear shaft during axial movement.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of the thrust state of the axial movement and thrust bearing contact spot inspection device provided by the present utility model;
FIG. 2 is a schematic illustration of the axial movement and thrust bearing contact spot check assembly of the present utility model in a pulled state;
FIG. 3 is a schematic view of a bearing block and a pusher screw co-extruding a steel ball.
The drawings include:
The device comprises a supporting plate 1, a connecting plate 2, a bearing block 21, a pushing screw 3, a steel ball 31, a pulling screw 4, a screwing nut 41, a thrust self-aligning roller bearing 42, a baffle 43, a butt strap 5, a distance plate 51, a box 6, a large gear shaft 7, a thrust disc 71, a thrust bearing 72, a sliding bearing 73 and a large gear 74.
Detailed Description
The core of the utility model is to provide an axial movement and thrust bearing contact spot inspection device which can perform axial movement and contact spot inspection on heavy equipment.
In order to make the technical solution of the present utility model better understood by those skilled in the art, the axial movement and thrust bearing contact spot inspection device of the present utility model will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, the present utility model provides an axial movement and thrust bearing contact spot inspection device, which can push and pull a large gear shaft 7 in the axial direction, and can inspect contact spots of a thrust bearing 72 mounted on the large gear shaft 7 by moving the large gear shaft 7 in the axial direction. The axial direction is the left-right direction in fig. 1 and 2.
The device comprises: the device comprises a supporting plate 1 fixedly arranged on a box body 6, a connecting plate 2 fixedly arranged on a large gear shaft 7, a pushing screw 3 and a pulling screw 4; the housing 6 supports the structure of the pinion shaft 7, the pinion shaft 7 being mounted within the housing 6, the pinion shaft 7 being rotatable relative to the housing 6, the housing 6 remaining relatively stationary.
The supporting plate 1 is arranged on the box body 6, the connecting plate 2 is arranged on the large gear shaft 7, the supporting plate 1 and the connecting plate 2 can adopt a flat plate structure, and other modeling structures can also be adopted. The support plate 1 is provided with an operation hole penetrating along the axial direction of the large gear shaft 7, and the operation hole is matched with the pushing screw 3 or the pulling screw 4. The inner wall of the operation hole is provided with an internal thread.
The pushing screw rod 3 is used for being in threaded connection with the operation hole, when the pushing screw rod 3 is screwed, the pushing screw rod 3 rotates around the axis, the pushing screw rod 3 is in threaded fit with the operation hole, and the pushing screw rod 3 is displaced along the axial direction. When the large gear shaft 7 needs to be pushed to move leftwards as shown in fig. 1, the pushing screw 3 is rotated to enable the pushing screw 3 to move leftwards, the left end of the pushing screw 3 contacts with and props against the connecting plate 2, acting force is applied to the connecting plate 2, the connecting plate 2 is fixed on the large gear shaft 7, and therefore the large gear shaft 7 is pushed to move along the axial direction, and the large gear shaft 7 moves leftwards.
The pulling screw 4 can be fixedly connected to the connecting plate 2, the pulling screw 4 is fixed relative to the connecting plate 2, the pulling screw 4 can be slidably inserted into the operation hole, the outer surface of the part of the pulling screw 4 contacting the operation hole is smooth, and no opposite acting force is generated with the internal thread of the operation hole. The pulling screw 4 is in threaded connection with the screwing nut 41, and in combination with fig. 2, when the large gear shaft 7 needs to be pulled to move rightwards, the screwing nut 41 rotates, the screwing nut 41 is pressed on the supporting plate 1, the screwing nut 41 is limited by the supporting plate 1 and cannot move leftwards, axial acting force is generated between the screwing nut 41 and the pulling screw 4, and accordingly the pulling screw 4 is pulled along the axial direction, and the large gear shaft is pulled to move along the axial direction.
By adopting the axial movement and thrust bearing contact spot inspection device provided by the utility model, the support plate 1 and the connection plate 2 are mounted in place in advance, when the large gear shaft 7 is required to be pushed or pulled, the corresponding push screw 3 or pull screw 4 is correspondingly selected, the large gear shaft 7 generates axial displacement by rotating the push screw 3 or the pull screw 4, only the push screw 3 or the pull screw 4 is required to be driven to rotate, the rotation of the push screw 3 or the pull screw 4 is converted into the axial movement of the large gear shaft 7, and the axial movement of the large gear shaft 7 can be conveniently realized, so that the axial clearance is detected. The thrust bearing contact spot inspection can be achieved by means of axial movement.
When checking the axial clearance, placing a dial indicator at the non-operating end of the large gear shaft 7, moving the large gear shaft 7 leftwards in combination with fig. 1 until the large gear shaft 7 abuts against the left thrust bearing 72, and at this time, zeroing the dial indicator; the large gear shaft 7 is moved rightward until the large gear shaft 7 abuts against the right thrust bearing 72, and the reading of the dial indicator is the gap between the thrust disc 71 and the thrust bearing 72.
When the left thrust bearing 72 is inspected for contact spots, a coloring agent is applied to the left thrust bearing 72, the large gear shaft 7 is moved leftward until the thrust disk 71 abuts against the left thrust bearing 72, the large gear shaft 7 is driven until the large gear shaft 7 is sufficiently contacted, and the large gear shaft 7 is moved rightward to take out the thrust bearing 72, thereby inspecting the colored spots. The same applies to the contact spot inspection of the right thrust bearing 72.
On the basis of the scheme, the axial movement and thrust bearing contact spot inspection device further comprises a pressure-bearing block 21, wherein the pressure-bearing block 21 can be screwed into a connecting hole formed in the connecting plate 2, a boss structure is arranged on the pressure-bearing block 21, and external threads are arranged on the boss structure and screwed into the connecting hole to realize axial connection. The pressure-bearing block 21 is used for propping the end part of the pushing screw 3, and the pressure-bearing block 21 bears the acting force of the pushing screw 3. The pushing screw 3 indirectly applies a force to the connection plate 2 through the bearing block 21.
The pulling screw 4 can be connected to the connecting hole in a threaded manner, the pulling screw 4 is directly connected with the connecting plate 2 in an axial direction through external threads arranged on the outer surface of the pulling screw 4, and the pulling screw 4 adopts a stud structure and can directly pull the connecting plate 2. Since the pulling screw 4 can move axially with respect to the operation hole provided in the support plate 1, and the pushing screw 3 is screw-coupled to the operation hole provided in the support plate 1, the outer diameter of the pulling screw 4 is slightly smaller than the outer diameter of the pushing screw 3.
The surface of the pressure-bearing block 21 and the end of the pushing screw 3 are provided with conical or spherical pits, and the two opposite pits are used for placing the steel balls 31. In combination with the illustration of fig. 3, a concave pit structure is arranged on the surface of the bearing block 21 facing the pushing screw 3, and a concave pit structure is arranged on the end of the pushing screw 3 facing the bearing block 21, so that when the large gear shaft 7 is driven by the steel ball 31, the torque required to be applied during the driving is greatly reduced, and the efficiency is high and the strength is saved. The surface of the pit can be a conical surface or a spherical surface, and when the pressure-bearing block 21 and the pushing screw 3 jointly squeeze the steel ball 31, the steel ball 31 can be prevented from moving along the radial direction, and the limiting effect is achieved.
A thrust self-aligning roller bearing 42 and a baffle 43 are arranged between the screwing nut 41 and the supporting plate 1, the screwing nut 41 is pressed on the baffle 43, the baffle 43 is pressed on the thrust self-aligning roller bearing 42, the thrust self-aligning roller bearing 42 is pressed on the supporting plate 1, and due to the arrangement of the thrust self-aligning roller bearing 42, when the large gear shaft 7 is driven, the torque required to be applied during the driving is greatly reduced.
The operations of moving to the left, as shown in connection with fig. 1, are: the boss provided with the external thread of the pressure-bearing block 21 is screwed into the threaded hole of the connecting plate 2, and the pushing screw 3 is screwed into the supporting plate 1 until the pushing screw 3 abuts against the steel ball 31. The bolt head on the pushing screw 3 is continuously screwed, and the pushing screw 3 moves leftwards under the action of the screw thread pair due to the fixing of the supporting plate 1, so that the steel ball 31 and the large gear shaft 7 are pushed to move leftwards. Until the thrust disc 71 on the large gear shaft 7 comes into contact with the left thrust bearing 72, at which point the large gear shaft 7 reaches the leftmost side.
As shown in connection with fig. 2, the operations of moving to the right are: after the bearing block 21, the steel ball 31 and the pushing screw 3 which move leftwards are disassembled, the pulling screw 4 is screwed into the connecting plate 2 until one end of the pulling screw protrudes out of the connecting plate 2, and a thrust self-aligning roller bearing 42, a baffle 43 and a screwing nut 41 are sequentially arranged on the side of the supporting plate 1 of the pulling screw 4. The screw nut 41 is screwed down, and since the position of the screw nut 41 is restricted, the screw 4 is pulled to move rightward by the screw pair, thereby pulling the large gear shaft 7 to move rightward. Until the thrust disc 71 on the large gear shaft 7 comes into contact with the right thrust bearing 72, at which point the large gear shaft reaches the extreme right.
In a specific embodiment, the operation hole provided by the support plate 1 and the connection hole provided by the connection plate 2 are one, the operation hole and the connection hole are positioned on the axis of the large gear shaft, and the push screw 3 and the pull screw 4 are selectively installed.
On the basis of any one of the above technical schemes and the mutual combination thereof, the utility model further comprises a butt strap 5 fixedly arranged on the box body 6, and the supporting plate 1 is arranged on the butt strap 5. As shown in fig. 1 and 2, the strap 5 is fixed to the case 6, and the axial force is transmitted to the case 6 through the strap 5, so that the force of pushing the screw 3 or pulling the screw 4 is transmitted to the case 6 through the strap 5 when the support plate 1 receives the force.
The spacer plate 51 is arranged between the strap 5 and the support plate 1, and as shown in fig. 1 and 2, in the schematic longitudinal section, the spacer plate 51 and the strap 5 form an L-shaped structure, and the contact area between the spacer plate 51 and the support plate 1 is increased, so that more stable connection is realized. The distance plate 51 may be of different thickness to achieve an adjustment fit. The dimensions of the distance plate 51 are related to the structure of the box 6, ensuring that there is sufficient operating space for the distance plate 51 and the connection plate 2.
Referring to fig. 1 and 2, the strap 5 is fixedly connected to the case body by a plurality of bolts perpendicular to the axial direction, and the stability of the fixed connection of the strap 5 can be improved by a plurality of bolts.
As shown in fig. 1 and 2, the access panel 5 provided by the present utility model includes two flat plates disposed parallel to each other, and fig. 1 and 2 are schematic views in a top view, and two flat plate-shaped access panels 5 disposed on both sides are kept parallel. Other configurations of the access panel 5, other than a flat panel configuration, are possible and are within the scope of the present utility model.
The support plate 1 is fixed to the strap 5 by bolts, and the connection plate 2 is fixed to the large gear shaft by bolts. As shown in fig. 1 and 2, the support plate 1 and the connecting plate 2 are fixedly connected through a circle of bolts arranged around, so that the stability of connection can be ensured, and the assembly and disassembly can be convenient.
The axial movement and thrust bearing contact spot checking device is used for axial movement of the transmission piece of the heavy equipment, so that the friction force between the tool and the transmission piece is eliminated, the efficiency is high, the strength is saved, and meanwhile, the tool is simple to use. The utility model adopts the steel ball and the thrust self-aligning roller bearing 42 to transmit the axial force, reduces the force required by the jigger when the jigger performs the contact spot inspection of the thrust bearing, and simultaneously, the applied axial force is free from eccentric and unbalanced load after the transmission of the steel ball and the thrust self-aligning roller bearing 42. The utility model is suitable for heavy-duty transmission parts under various special conditions: the driving part flange is arranged in the box body, the driving part flange is arranged outside the box body, the thrust force can be applied to the semicircle of the box body, and the like. The utility model has the advantages of simple tools, simple operation, easy realization and no damage to products.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An axial movement and thrust bearing contact spot inspection apparatus, comprising: the device comprises a supporting plate (1) fixedly arranged on a box body, a connecting plate (2) fixedly arranged on a large gear shaft, a pushing screw (3) and a pulling screw (4); the supporting plate (1) is provided with an operation hole in a penetrating manner along the axial direction of the large gear shaft;
The pushing screw rod (3) is in threaded connection with the operation hole, and when the pushing screw rod (3) is screwed, the pushing screw rod (3) is in contact with and props against the connecting plate (2) and is used for pushing the large gear shaft to move along the axial direction;
The pulling screw rod (4) can be fixedly connected to the connecting plate (2), the pulling screw rod (4) can be inserted into the operation hole in a sliding mode and is connected with the screwing nut (41) in a threaded mode, when the screwing nut (41) rotates, the pulling screw rod can be pressed on the supporting plate (1), and therefore the pulling screw rod (4) is pulled along the axial direction, and then the large gear shaft is pulled to move along the axial direction.
2. The axial displacement and thrust bearing contact spot inspection device according to claim 1, further comprising a pressure-bearing block (21), said pressure-bearing block (21) being threadably mounted to a connection hole provided in said connection plate (2); the pressure-bearing block (21) is used for propping the end part of the pushing screw rod (3);
the pulling screw (4) can be connected with the connecting hole in a threaded manner.
3. The axial displacement and thrust bearing contact spot inspection device according to claim 2, characterized in that the surface of the pressure block (21) and the end of the push screw (3) are provided with conical or spherical recesses, in which two opposing recesses balls (31) are placed.
4. The axial movement and thrust bearing contact spot inspection device according to claim 2, characterized in that a thrust self-aligning roller bearing (42) and a baffle (43) are provided between the screw nut (41) and the support plate (1).
5. The axial movement and thrust bearing contact spot inspection device according to claim 1, characterized in that the operation hole and the connection hole are located on the axis of the large gear shaft, and the push screw (3) and the pull screw (4) are selectively installed.
6. The axial displacement and thrust bearing contact spot inspection device according to any one of claims 1 to 5, further comprising a bridge plate (5) fixedly mounted to the housing, the support plate (1) being mounted to the bridge plate (5).
7. The axial displacement and thrust bearing contact spot inspection device according to claim 6, characterized in that a spacer plate (51) is padded between the access plate (5) and the support plate (1).
8. The axial displacement and thrust bearing contact spot inspection device according to claim 6, wherein the access plate (5) is fixedly connected to the housing by a plurality of bolts perpendicular to the axial direction.
9. The axial displacement and thrust bearing contact spot inspection device according to claim 6, characterized in that the access plate (5) comprises two flat plates arranged parallel to each other.
10. The axial movement and thrust bearing contact spot inspection device according to claim 6, characterized in that the support plate (1) is fixed to the access plate (5) by bolts, and the connection plate (2) is fixed to the large gear shaft by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323079257.4U CN221123276U (en) | 2023-11-15 | 2023-11-15 | Axial movement and thrust bearing contact spot inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323079257.4U CN221123276U (en) | 2023-11-15 | 2023-11-15 | Axial movement and thrust bearing contact spot inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221123276U true CN221123276U (en) | 2024-06-11 |
Family
ID=91366186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323079257.4U Active CN221123276U (en) | 2023-11-15 | 2023-11-15 | Axial movement and thrust bearing contact spot inspection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221123276U (en) |
-
2023
- 2023-11-15 CN CN202323079257.4U patent/CN221123276U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109163904B (en) | Fatigue limit testing machine for multi-load motion knuckle bearing | |
| CN111413094B (en) | Slewing bearing capability test device | |
| CN102175598B (en) | End face torsion frictional wear testing machine and method | |
| CN103344553B (en) | High-speed rolling contact fatigue testing machine | |
| KR101207810B1 (en) | Apparatus for applying tension and compression load | |
| CN103115772B (en) | Axial nut loading mechanism for ball screen assemblies | |
| CN102507336B (en) | Rotatable power and liquid supply ground triaxial testing machine | |
| CN107271307B (en) | Small-load impact abrasion test bed with tangential acceleration | |
| CN109357867B (en) | Radial loading device for fatigue life test of RV reducer | |
| CN109932127B (en) | Quick calibrating device of torque sensor | |
| CN205620127U (en) | Thin wall bearing examines test table static load testing arrangement | |
| CN112834219B (en) | Loading tool assembly for bearing testing machine and method for loading test bearings | |
| CN107101826B (en) | Sealed energy-saving universal coupling transmission test bed | |
| CN105547701A (en) | Dynamic load testing device for thin-wall bearing detecting table | |
| CN113340594B (en) | Fatigue life testing device and method for heavy-load planetary roller screw | |
| CN221123276U (en) | Axial movement and thrust bearing contact spot inspection device | |
| CN109283067B (en) | Two-way shear test device of sheet metal | |
| CN106950137B (en) | Tangential fretting wear test device and test method | |
| CN105372174A (en) | Movable frictional resistance coefficient testing device | |
| CN205317642U (en) | Movable coefficient of frictional resistance testing arrangement | |
| CN107101816B (en) | Semi-floating semi-axis composite loading fatigue test stand | |
| CN117871226A (en) | Wind power blade buckling and torsion composite test system | |
| CN110567718B (en) | Rolling bearing radial dynamic stiffness testing device based on piezoelectric actuator | |
| CN206906026U (en) | A kind of electrodynamic type bearing test-bed varying load loading unit | |
| CN115266088B (en) | Arc guide rail running-in and loading testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |