CN216666263U - Robot and bearing preloading device thereof - Google Patents
Robot and bearing preloading device thereof Download PDFInfo
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- CN216666263U CN216666263U CN202123031262.9U CN202123031262U CN216666263U CN 216666263 U CN216666263 U CN 216666263U CN 202123031262 U CN202123031262 U CN 202123031262U CN 216666263 U CN216666263 U CN 216666263U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The application discloses a robot and a bearing pre-tightening device thereof, wherein the bearing pre-tightening device comprises a main body and a main shaft, the main body comprises a first mounting plate and a second mounting plate which are arranged at intervals, one end of the main shaft penetrates through the first mounting plate and can rotate relative to the first mounting plate, and the other end of the main shaft penetrates through the second mounting plate and can rotate relative to the second mounting plate; a first bearing is sleeved on one side, close to the first mounting plate, of the main shaft, the main shaft is provided with a positioning part, the first bearing is arranged between the positioning part and the first mounting plate, and two sides of the first bearing are respectively abutted against the positioning part and the inner side surface of the first mounting plate; a second bearing is sleeved on one side, close to the second mounting plate, of the main shaft, and the second bearing is abutted to the inner side face of the second mounting plate; the bearing pre-tightening device provided by the application only needs to twist the pre-tightening nut to pre-tighten the first bearing and the second bearing, the process is simple, the pre-tightening nut is in threaded fit with the main shaft, the requirement on machining precision is lowered, and the machining cost is also lowered.
Description
Technical Field
The application relates to the technical field of robots, in particular to a bearing pre-tightening device. In addition, the application also relates to a robot comprising the bearing preloading device.
Background
When the robot is required to deliver goods to places such as hotels, clubs and the like, in consideration of the requirements of confidentiality, anti-lost performance and the like of the goods, an openable cabin door is generally arranged on the robot, and in the assembling process of the cabin door, the assembling clearance needs to be controlled by controlling the machining precision of relevant parts such as an installation shaft, an upright post and the like, so that the machining cost is increased; under the condition that the machining precision does not meet the requirement, the situation that the cabin door is loosened or over-tightened and cannot meet the assembly requirement can also occur.
In summary, how to reduce the processing cost of the hatch device is an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present application is to provide a bearing preloading device, which can preload a first bearing and a second bearing by tightening a preload nut in an installation process, so as to reduce the processing precision of the preloading device, thereby reducing the processing cost of the bearing preloading device; and the pre-tightening process is simple and easy to operate.
Another object of the present application is to provide a robot comprising the bearing preloading device described above.
In order to achieve the above purpose, the present application provides the following technical solutions:
a bearing pre-tightening device comprises a machine body main body and a main shaft, wherein the machine body main body comprises a first mounting plate and a second mounting plate which are arranged at intervals, one end of the main shaft penetrates through the first mounting plate and is arranged and the main shaft can rotate relative to the first mounting plate, the other end of the main shaft penetrates through the second mounting plate and is arranged and the main shaft can rotate relative to the second mounting plate;
a first bearing is sleeved on one side, close to the first mounting plate, of the main shaft, the main shaft is provided with a positioning part, the first bearing is arranged between the positioning part and the first mounting plate, and two sides of the first bearing are respectively abutted to the inner side faces of the positioning part and the first mounting plate; a second bearing is sleeved on one side, close to the second mounting plate, of the main shaft, and the second bearing is abutted to the inner side face of the second mounting plate;
the outer periphery of the main shaft is provided with an external thread and a pre-tightening nut matched with the external thread; the pre-tightening nut is located between the first bearing and the second bearing and abuts against one side, deviating from the second mounting plate, of the second bearing, and the pre-tightening nut is used for pre-tightening the second bearing when being screwed in the direction of the second mounting plate and is used for driving the main shaft to move in the direction of the first mounting plate so as to pre-tighten the first bearing.
In a specific embodiment, the first mounting plate is provided with a first mounting hole, a first bushing is arranged in the first mounting hole, the first bushing is sleeved on the periphery of the main shaft in a clearance mode, the second mounting plate is provided with a second mounting hole, a second bushing is arranged in the second mounting hole, and the second bushing is sleeved on the periphery of the main shaft in a clearance mode.
In a specific embodiment, the positioning portion includes a first step formed on the main shaft and a first connecting rod sleeved on the outer periphery of the main shaft, the first connecting rod abuts against the first step, and the first step is used for supporting the first connecting rod; the first bearing is arranged between the first connecting rod and the first mounting plate, and two sides of the first bearing are respectively abutted to the inner side faces of the first connecting rod and the first mounting plate.
In a specific embodiment, the spindle further comprises a second connecting rod, the spindle is provided with a second step, and the second connecting rod is sleeved on the periphery of the spindle and is abutted against the second step; the second bearing is arranged between the second connecting rod and the second mounting plate, and two sides of the second bearing are respectively abutted to the inner side faces of the second connecting rod and the second mounting plate.
In a specific embodiment, one side of the pretension nut facing the inner side surface of the second mounting plate abuts against the second connecting rod.
In a specific embodiment, the spindle is provided with a locking member for locking the pre-tightening nut on the periphery, and one side of the locking member facing the inner side surface of the second mounting plate abuts against the pre-tightening nut.
In a specific embodiment, the retaining member includes a locking nut and a spacer, the locking nut is matched with the external thread of the spindle, the locking nut and the spacer are both sleeved on the periphery of the spindle, the spacer is arranged between the pre-tightening nut and the retaining member, and two sides of the spacer are respectively abutted to the pre-tightening nut and the locking nut.
In a specific embodiment, a first groove for positioning the first bearing is arranged on the inner side of the first mounting plate, and the first bearing is embedded in the first groove; the inboard of second mounting panel is provided with and is used for the location the second recess of second bearing, the second bearing inlays to be located in the second recess.
A robot comprises a cabin door and the bearing preloading device, wherein the cabin door is rotatably connected with the bearing preloading device.
In a specific embodiment, the cabin door further comprises a driven connecting rod, one end of the driven connecting rod is rotatably connected to the main body of the cabin body, the other end of the driven connecting rod is rotatably connected to the cabin door, and the driven connecting rod and the bearing pre-tightening device are respectively connected to different positions of the cabin door.
In the process of using the bearing preloading device that this application provided, through screwing up the pretightening nut, the pretightening nut is located between first bearing and the second bearing, and the pretightening nut butt deviates from one side of second mounting panel in the second bearing, and the pretightening nut is used for carrying out the pretension to the second bearing when screwing up to the direction of second mounting panel and is used for driving the direction removal of main axial first mounting panel in order to carry out the pretension to first bearing.
Compared with the prior art, the bearing pre-tightening device provided by the application only needs to tighten the pre-tightening nut in the process of pre-tightening the first bearing and the second bearing, the pre-tightening process is simple and easy to perform, the pre-tightening nut is connected with the main shaft in a threaded fit mode, the requirement on the machining precision is greatly reduced, and therefore the machining cost is reduced.
In addition, the application also provides a robot comprising the bearing preloading device.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a partial structural schematic view of a robot provided in the present application;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partial cross-sectional view of a robot provided herein;
fig. 4 is a partially enlarged view of a portion B in fig. 3.
In fig. 1-4:
the structure comprises a first mounting plate 1, a first groove 101, a first connecting rod 2, a driven connecting rod 3, a main shaft 4, a first step 41, a second step 42, a second connecting rod 5, a locking nut 6, a gasket 7, a pretightening nut 8, a cabin door 9, a second mounting plate 10, a second groove 102, a bevel gear 11, a first bushing 12, a first bearing 13, a second bearing 14, a second bushing 15 and a stand column 16.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The core of the application is to provide the bearing pre-tightening device, and the first bearing and the second bearing can be pre-tightened by screwing the nut in the installation process, so that the processing precision of the pre-tightening device is reduced, and the processing cost of the bearing pre-tightening device is reduced; and the pre-tightening process is simple and easy to operate. Another core of the present application is to provide a robot comprising the bearing preloading device described above.
Please refer to fig. 1 to fig. 4.
The embodiment discloses a bearing pre-tightening device, which comprises a machine body main body and a main shaft 4,
the machine body main body comprises a first mounting plate 1 and a second mounting plate 10 which are arranged at intervals, one end of a main shaft 4 penetrates through the first mounting plate 1, the main shaft 4 can rotate relative to the first mounting plate 1, the other end of the main shaft 4 penetrates through the second mounting plate 10, and the main shaft 4 can rotate relative to the second mounting plate 10;
a first bearing 13 is sleeved on one side, close to the first mounting plate 1, of the main shaft 4, a positioning part is arranged on the main shaft 4, the first bearing 13 is arranged between the positioning part and the first mounting plate 1, and two sides of the first bearing 13 are respectively abutted against the positioning part and the inner side surface of the first mounting plate 1; a second bearing 14 is sleeved on one side, close to the second mounting plate 10, of the main shaft 4, and the second bearing 14 is abutted to the inner side face of the second mounting plate 10;
the outer periphery of the main shaft 4 is provided with an external thread and a pretightening nut 8 matched with the external thread;
the pretension nut 8 is located between the first bearing 13 and the second bearing 14, the pretension nut 8 abuts against one side, away from the second mounting plate 10, of the second bearing 14, and the pretension nut 8 is used for pretensioning the second bearing 14 when being screwed in the direction of the second mounting plate 10 and is used for driving the spindle 4 to move in the direction of the first mounting plate 1 so as to pretension the first bearing 13.
The inner side of the first mounting plate 1 is a side of the first mounting plate 1 facing the second mounting plate 10, and the inner side of the second mounting plate 10 is a side of the second mounting plate 10 facing the first mounting plate 1.
As shown in fig. 2, the first mounting plate 1 and the second mounting plate 10 are both fixedly connected to the upright post 16, so that the first mounting plate 1 and the second mounting plate 10 are oppositely arranged. In the process that the main shaft 4 is installed on the first installation plate 1 and the second installation plate 10, the axial movement of the main shaft 4 can be limited by arranging structures such as a shaft shoulder and the like, for example, one end of the main shaft 4 extends out of the first installation plate 1, the extending end is provided with a bevel gear 11, the extending end can be provided with a limiting step, and the influence of the axial movement of the main shaft 4 on the meshing transmission of the bevel gear 11 is avoided; the end of the main shaft 4, which is mounted on the second mounting plate 10, is also provided with an axial limiting structure, so that the second bearing 14 can be extruded in the process of pre-tightening the nut 8 by the knob.
In the process of using the bearing preloading device provided by the embodiment, firstly, each component needs to be assembled, after the assembly is completed, the preload nut 8 is screwed down, so that the main shaft 4 moves in the axial direction relative to the first mounting plate 1 and the second mounting plate 10, the preload nut 8 preloads the second bearing 14, when the preload nut 8 applies thrust to the second bearing 14, the main shaft 4 moves in the direction of the first mounting plate 1 along the axial direction in the process of screwing the preload nut 8, and thus the preload force which is in the axial direction and towards the inner side of the first mounting plate 1 is applied to the first bearing 13, and the preload of the first bearing 13 is realized; in the process of extruding the second bearing 14, the pretightening nut 8 applies pretightening force which is along the axial direction and faces the inner side of the second mounting plate 10 to the second bearing 14, so that the pretightening of the second bearing 14 is realized; in the pre-tightening process, the pre-tightening degree of the first bearing 13 and the second bearing 14 can be judged according to the magnitude of the torsion force when the pre-tightening nut 8 is screwed; for example, the torque for screwing the pre-tightening nut 8 may be set to 50N, and the screwing may be stopped when the torque reaches 50N during screwing the pre-tightening nut 8.
Compared with the prior art, the bearing pre-tightening device provided by the embodiment only needs to screw the pre-tightening nut 8 in the process of pre-tightening the first bearing 13 and the second bearing 14, the pre-tightening process is simple and easy to perform, and the pre-tightening nut 8 is connected with the main shaft 4 in a threaded fit manner, so that the requirement on the machining precision is greatly reduced, and the machining cost is reduced.
As shown in fig. 4, the first mounting plate 1 is provided with a first mounting hole (not shown), a first bushing 12 is arranged in the first mounting hole, in order to prevent the spindle 4 from radially shaking in the rotation process, the first bushing 12 is sleeved on the periphery of the spindle 4 in a clearance manner, the second mounting plate 10 is provided with a second mounting hole (not shown), a second bushing 15 is arranged in the second mounting hole, the second bushing 15 is sleeved on the periphery of the spindle 4 in a clearance manner, and the first bushing 12 and the second bushing 15 are sleeved on the outer sleeve of the spindle in a clearance manner, so as to prevent the spindle 4 from radially shaking in the rotation process; optionally, the first bushing 12 and the second bushing 15 are oil-free bushings, and in the rotation process of the main shaft 4, the first bushing 12 and the second bushing 15 are used for bearing a radial force generated in the rotation process of the main shaft 4, so that the main shaft 4 smoothly rotates, the first bushing 12 and the second bushing 15 are coaxially arranged, and the central axis coincides with the central axis of the main shaft 4.
In an embodiment, as shown in fig. 4, the positioning portion includes a first step 41 formed on the main shaft 4 and the first connecting rod 2 sleeved on the outer periphery of the main shaft 4, the first connecting rod 2 abuts against the first step 41, and the first step 41 is used for supporting the first connecting rod 2; the first bearing 13 is disposed between the first link 2 and the first mounting plate 1, and two sides of the first bearing 13 respectively abut against inner side surfaces of the first link 2 and the first mounting plate 1. The bearing pre-tightening device further comprises a second connecting rod 5, the main shaft 4 is provided with a second step 42, the second connecting rod 5 is fixedly sleeved on the periphery of the main shaft 4 and is abutted against the second step 42, and the second step 42 is used for limiting the axial displacement of the second connecting rod 5 on the main shaft 4; the second bearing 14 is disposed between the second link 5 and the second mounting plate 10, and two sides of the second bearing 14 respectively abut against inner side surfaces of the second link 5 and the second mounting plate 10.
In the process of screwing the pretension nut 8 towards the direction of the second bearing 14, one end of the main shaft 4 connected with the first mounting plate 1 moves upwards (the positive direction of the Z axis in fig. 1) relative to the first mounting plate 1 along the axial direction of the main shaft 4, and the first step 41 extrudes the first connecting rod 2 and the first bearing 13 to realize pretension of the first bearing 13; the pretensioning nut 8 moves downwards (in the negative direction of the Z axis in fig. 1), and presses the second connecting rod 5 and the second bearing 14, so as to pretension the second bearing 14. The arrangement of the first step 41 and the second step 42 facilitates the pre-tightening process of the first bearing 13 and the second bearing 14; meanwhile, due to the arrangement of the first connecting rod and the second connecting rod, the extrusion force of the pre-tightening nut 8 cannot directly act on the second bearing 14 or the first bearing 13, and abrasion to the second bearing 14 or the first bearing 13 can be avoided.
In one embodiment, the first bearing 13 and the second bearing 14 are both thrust bearings.
The latter half of main shaft 4 is provided with the external screw thread, pretension nut 8 is installed in the cooperation of external screw thread department, and pretension nut 8 moves up for first mounting panel 1 when revolving the in-process of pretension nut 8 towards one side and the butt of second connecting rod 5 of second mounting panel 10 medial surface, pretension nut 8 moves to the direction of second mounting panel 10 for main shaft 4, at the in-process of rebound, can extrude first bearing 13, revolve the in-process of revolving pretension nut 8, can extrude second bearing 14, thereby make first bearing 13 and second bearing 14 realize the pretension. In this embodiment, the side of the pre-tightening nut 8 facing the inner side of the second mounting plate 10 abuts against the second connecting rod 5, so that the occurrence of a free-wheeling stroke of the pre-tightening nut 8 can be avoided, and the pre-tightening efficiency can be improved.
Still including the retaining member that is used for locking pretightening nut 8, the periphery of main shaft 4 is located to the retaining member, one side butt in pretightening nut 8 of retaining member orientation second mounting panel 10 medial surface, the setting of retaining member can play the not hard up effect of preventing pretightening nut 8.
The retaining member includes lock nut 6 and gasket 7, lock nut 6 and main shaft 4's external screw thread fit, 4 peripheries of main shaft are all located to lock nut 6 and gasket 7 cover, and gasket 7 sets up between nut 8 and lock nut 6, the both sides of gasket 7 butt nut 8 and lock nut 6 respectively, it is optional, gasket 7 can be the spring shim, when locking nut 8, tighten lock nut 6, lock nut 6 extrudes spring shim 7, apply axial pressure to nut 8, it is fixed to lock it, can play effectual locking effect.
In a specific embodiment, the inner side of the first mounting plate 1 is provided with a first groove 101 for positioning the first bearing 13, and the first bearing 13 is embedded in the first groove 101; the inner side of the second mounting plate 10 is provided with a second groove 102 for positioning the second bearing 14, the second bearing 14 is embedded in the second groove 102, after the first bearing 13 and the second bearing 14 are pre-tightened, the first bearing 13 is positioned in the first groove 101, and the second bearing 14 is positioned in the second groove 102, so that the positioning and limiting effects on the first bearing 13 and the second bearing 14 can be achieved.
The bearing preloading device that this application file provided is at the in-process that uses, through main shaft 4 and pretension nut 8's cooperation, the first step 41, the second step 42 of the shaft shoulder formation of collocation main shaft 4 alright in order to realize the pretension of first bearing 13 and second bearing 14, need not rely on the machining precision to guarantee the fit-up gap between each spare part, reduced the processing degree of difficulty and cost, improved economic type and yields, increased the reliability of structure simultaneously.
Besides the bearing preloading device, the present application also provides a robot including the bearing preloading device disclosed in the above embodiments, and the structure of other parts of the robot refers to the prior art and is not described herein again.
The robot comprises a cabin door 9 and the bearing pre-tightening device, the cabin door 9 is rotatably connected with the bearing pre-tightening device, optionally, the cabin door 9 is connected with a main body structure through a connecting rod structure, the connecting rod structure comprises a first connecting rod 2, one end of which is connected with the other end of a main shaft 4 in a hinged mode, a second connecting rod 5 and a driven connecting rod 3, one end of which is connected with an auxiliary shaft, the other end of which is connected with the cabin door 9 in a hinged mode, the main shaft 4 is driven by a gear fixedly installed on the main shaft 4 to rotate, the main shaft 4 drives the first connecting rod 2 and the second connecting rod 5 to rotate, and the first connecting rod 2, the driven connecting rod 3, the cabin door 9 and the first mounting plate 1 are combined into a four-connecting rod structure, so that the driven connecting rod 3 can be driven to rotate, and the opening and closing of the cabin door 9 are realized.
The references to the first and second mounting plates 1 and 10, the first and second links 2 and 5, the first and second bushings 12 and 15, and the first and second bearings 13 and 14 in this document are merely for distinguishing the differences in position and are not to be construed as a priority.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. Any combination of all the embodiments provided by the present application is within the scope of the present invention, and is not described herein.
The robot and the bearing preloading device thereof provided by the application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (10)
1. A bearing pre-tightening device is characterized by comprising a machine body main body and a main shaft, wherein the machine body main body comprises a first mounting plate and a second mounting plate which are arranged at intervals, one end of the main shaft penetrates through the first mounting plate and is arranged and the main shaft can rotate relative to the first mounting plate, the other end of the main shaft penetrates through the second mounting plate and is arranged and the main shaft can rotate relative to the second mounting plate;
a first bearing is sleeved on one side, close to the first mounting plate, of the main shaft, the main shaft is provided with a positioning part, the first bearing is arranged between the positioning part and the first mounting plate, and two sides of the first bearing are respectively abutted against the positioning part and the inner side surface of the first mounting plate; a second bearing is sleeved on one side, close to the second mounting plate, of the main shaft, and the second bearing is abutted to the inner side face of the second mounting plate;
the periphery of the main shaft is provided with an external thread and a pre-tightening nut matched with the external thread, the pre-tightening nut is located between the first bearing and the second bearing and abutted against one side, deviating from the second mounting plate, of the second bearing, and the pre-tightening nut is used for pre-tightening the second bearing when being screwed in the direction of the second mounting plate and is used for driving the main shaft to move in the direction of the first mounting plate so as to pre-tighten the first bearing.
2. The bearing preloading device according to claim 1, wherein the first mounting plate is provided with a first mounting hole, a first bushing is arranged in the first mounting hole, the first bushing is sleeved on the outer periphery of the main shaft in a clearance manner, the second mounting plate is provided with a second mounting hole, a second bushing is arranged in the second mounting hole, and the second bushing is sleeved on the outer periphery of the main shaft in a clearance manner.
3. The bearing preloading device according to claim 1, wherein the positioning portion comprises a first step formed on the main shaft and a first connecting rod sleeved on the outer periphery of the main shaft, the first connecting rod abuts against the first step, and the first step is used for supporting the first connecting rod; the first bearing is arranged between the first connecting rod and the first mounting plate, and two sides of the first bearing are respectively abutted to the inner side faces of the first connecting rod and the first mounting plate.
4. The bearing preloading device according to claim 3, further comprising a second connecting rod, wherein the main shaft is provided with a second step, and the second connecting rod is sleeved on the outer periphery of the main shaft and abuts against the second step; the second bearing is arranged between the second connecting rod and the second mounting plate, and two sides of the second bearing are respectively abutted to the inner side faces of the second connecting rod and the second mounting plate.
5. The bearing pretensioning apparatus according to claim 4, wherein the side of the pretensioning nut facing the inner side surface of the second mounting plate abuts the second link.
6. The bearing preloading device according to any one of claims 1 to 5, wherein the spindle is provided at its outer circumference with a locking member for locking the preload nut, and the side of the locking member facing the inner side of the second mounting plate abuts against the preload nut.
7. The bearing preloading device according to claim 6, wherein the locking member comprises a locking nut and a gasket, the locking nut is matched with the external thread of the spindle, the locking nut and the gasket are sleeved on the periphery of the spindle, the gasket is arranged between the locking member and the locking nut, and two sides of the gasket are respectively abutted against the locking nut and the locking nut.
8. The bearing preloading device according to any one of claims 1 to 5, wherein the inner side of the first mounting plate is provided with a first groove for positioning the first bearing, and the first bearing is embedded in the first groove; the inboard of second mounting panel is provided with and is used for the location the second recess of second bearing, the second bearing inlays to be located in the second recess.
9. A robot comprising a door and a bearing pretensioning device according to any of claims 1-8, the door being rotatably connected to the bearing pretensioning device.
10. The robot as claimed in claim 9, further comprising a driven link rotatably connected to the main body at one end and to the hatch at the other end, wherein the driven link and the bearing preloading device are respectively connected to different positions of the hatch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123031262.9U CN216666263U (en) | 2021-12-03 | 2021-12-03 | Robot and bearing preloading device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123031262.9U CN216666263U (en) | 2021-12-03 | 2021-12-03 | Robot and bearing preloading device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216666263U true CN216666263U (en) | 2022-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123031262.9U Active CN216666263U (en) | 2021-12-03 | 2021-12-03 | Robot and bearing preloading device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216666263U (en) |
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2021
- 2021-12-03 CN CN202123031262.9U patent/CN216666263U/en active Active
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