CN210878584U

CN210878584U - Rotary workbench

Info

Publication number: CN210878584U
Application number: CN201921809654.3U
Authority: CN
Inventors: 黎莎; 吴晖
Original assignee: Beijing Railway Institute of Mechanical and Electrical Engineering Group Co Ltd
Current assignee: Beijing Railway Institute of Mechanical and Electrical Engineering Group Co Ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-06-30
Anticipated expiration: 2029-10-25

Abstract

The utility model belongs to the technical field of a workbench, and discloses a rotary workbench which comprises a frame, a rotary platform, a supporting roller, a positioning shaft and a driving motor; the rotary platform is used for bearing a workpiece, one end of the supporting roller is mounted on the rack, the other end of the supporting roller abuts against the rotary platform, and the rotary platform can rotate around the central axis of the rotary platform under the support of the supporting roller; one end of the positioning shaft is connected to the center of the rotating platform, and the other end of the positioning shaft is rotatably connected to the rack; the driving motor is in transmission connection with the rotating platform and can drive the rotating platform to rotate. Through the structure, the rotary workbench can be driven by the motor to rotate around the rotary workbench, so that workpieces on the rotary platform are arranged at the position and the angle convenient for maintenance operators to operate, the maintenance operators can be prevented from operating around, the labor intensity is reduced, and the working efficiency is improved.

Description

Rotary workbench

Technical Field

The utility model relates to a workstation technical field especially relates to a swivel work head.

Background

At present, the electric locomotive has the advantages of high power, high speed, high energy utilization rate, cleanness, environmental protection and the like, so that the electric locomotive is not only widely applied to a main railway, but also applied to almost all urban rail transit.

With the wide application of electric locomotives, the workload of maintenance of electric locomotives is also increased. The electric locomotive traction motor is large in size, heavy in weight and complex in structure, and is particularly inconvenient to overhaul. When the maintenance tool is used for maintenance, maintenance personnel need to walk around the maintenance tool to disassemble, assemble and maintain, operation stations of the maintenance personnel are unfixed and move frequently, and disassembly, assembly and maintenance tools also need to move along with the maintenance personnel, so that inconvenience is brought to maintenance work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a swivel work head, this swivel work head can wind self and rotate under the drive of motor, avoids maintenance personal circle operation, alleviates intensity of labour, improves work efficiency.

To achieve the purpose, the utility model adopts the following technical proposal:

a rotary worktable comprises a frame, a rotary platform, a supporting roller, a positioning shaft and a driving motor;

the rotary platform is used for bearing a workpiece, one end of the supporting roller is mounted on the rack, the other end of the supporting roller abuts against the rotary platform, and the rotary platform can rotate around the central axis of the rotary platform under the support of the supporting roller; one end of the positioning shaft is connected to the center of the rotating platform, and the other end of the positioning shaft is rotatably connected to the rack; the driving motor is in transmission connection with the rotating platform and can drive the rotating platform to rotate.

Preferably, the device further comprises a clutch, one end of the clutch is in transmission connection with the rotating platform, the other end of the clutch is in transmission connection with the driving motor, and the clutch is used for disconnecting or connecting transmission between the driving motor and the rotating platform.

Preferably, the clutch includes input and output that can break off or connect, the input of clutch is equipped with first gear, the output of clutch is equipped with the second gear, be equipped with the third gear on the rotary platform, driving motor's output is equipped with the fourth gear, the fourth gear with first gear engagement, the second gear with third gear engagement.

Preferably, a rotating handle is arranged on the rotating platform and used for manually rotating the rotating platform when the clutch is disconnected from transmission.

Preferably, the number of the supporting rollers is multiple, and the supporting rollers are uniformly distributed around the central axis of the positioning shaft (4).

Preferably, a cylindrical baffle is arranged on the rack, one end of the cylindrical baffle is connected to the rack, the distance between the other end of the cylindrical baffle and the bottom surface of the rotating platform is 1mm-2mm, and the plurality of supporting rollers are located in the cylindrical baffle.

Preferably, a bearing seat and a supporting frame are arranged on the rack, a positioning bearing and a thrust self-aligning bearing are arranged on the bearing seat, the positioning shaft passes through the positioning bearing and the thrust self-aligning bearing and is installed in the bearing seat, the supporting frame is installed in the rack, and the top end of the supporting frame abuts against the bearing seat.

Preferably, the bottom of the frame is provided with a leveling base, and the leveling base is supported on the ground and used for leveling the rotary platform.

Preferably, the clutch is an electromagnetic clutch.

The utility model has the advantages that:

the utility model provides a rotary workbench, wherein a rotary platform in the rotary workbench is supported by supporting rollers arranged on a frame, so that the rotary platform can bear heavier workpieces; the rotary platform can also be driven by the driving motor under the support of the supporting rollers to rotate around the central axis of the rotary platform, a workpiece on the rotary platform is placed at a position and an angle which are convenient for maintenance operators to operate, the operation of maintenance personnel in a winding mode is avoided, the movement of the maintenance personnel is reduced, the labor intensity is reduced, and the working efficiency is improved.

Drawings

FIG. 1 is a cross-sectional view of a rotary table according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a rotary table according to an embodiment of the present invention.

In the figure:

1. a frame; 11. a cylindrical baffle; 12. a bearing seat; 13. a support frame; 14. leveling the base; 2. rotating the platform; 21. rotating the handle; 3. supporting the rollers; 4. positioning the shaft; 41. positioning the bearing; 42. a thrust self-aligning bearing; 5. a drive motor; 6. a clutch; 101. a first gear; 102. a second gear; 103. a third gear; 104. a fourth gear.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention will be further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1, the utility model provides a rotary worktable, which comprises a frame 1, a rotary platform 2, a plurality of supporting rollers 3, a positioning shaft 4 and a driving motor 5. One end fixed connection of location axle 4 is in rotary platform 2's center, and the other end rotates to be connected in frame 1, and the one end of a plurality of supporting rollers 3 is all installed in frame 1, and the equal butt of the other end is in rotary platform 2's lower bottom surface, and rotary platform 2 can rotate around self the central axis under a plurality of supporting rollers 3's support. The driving motor 5 is in transmission connection with the rotating platform 2 and is used for driving the rotating platform 2 to rotate around the central axis of the rotating platform, and a schematic perspective structure of the assembled rotating platform is shown in fig. 2. Preferably, the driving motor 5 is a speed reducing motor, and has a compact structure and strong overload bearing capacity, so that the rotary worktable can bear heavy workpieces such as electric locomotive traction motors and the like. Through the structure, the rotary platform 2 of the rotary workbench can rotate around the central axis of the rotary workbench 3 under the driving of the driving motor 5, the workpiece is driven to rotate on the rotary platform 2, the operation of maintenance operators in a winding mode when the workpiece is maintained can be avoided, the movement of the maintenance operators is reduced, the labor intensity is reduced, and the working efficiency is improved.

In this embodiment, a cylindrical baffle 11, a bearing seat 12, a supporting frame 13 and a leveling base 14 are arranged on the frame 1, the bearing seat 12 is mounted on the frame 1, the positioning shaft 4 is mounted on the bearing seat 12, the supporting frame 13 is mounted in the frame 1, the bottom end of the supporting frame 13 is connected to the frame 1, the top end of the supporting frame 13 abuts against the bearing seat 12, and is used for bearing the weight of a workpiece borne by the rotary platform 2 transferred from the bearing seat 12, which is beneficial to enhancing the bearing capacity of the rotary workbench. Preferably, the bearing seat 12 is provided with a positioning bearing 41 and a self-aligning thrust bearing 42, the positioning bearing 41 is helpful for positioning the positioning shaft 4 on the bearing seat 12, so that the positioning shaft 4 can stably and smoothly rotate in the bearing seat 12, and the self-aligning thrust bearing 42 can bear the axial load of the positioning shaft 4, which is beneficial for enhancing the bearing capacity of the rotary workbench.

A plurality of supporting rollers 3 are all covered by a cylindrical baffle 11, one end of the cylindrical baffle 11 is connected to the top surface of the frame 1, and the other end is positioned below the bottom surface of the rotary platform 2. Preferably, the distance from one end of the cylindrical baffle 11, which is located below the bottom surface of the rotating platform 2, to the bottom surface of the rotating platform 2 is 1mm-2mm, so as to prevent sundries such as maintenance tools and oil stains from entering the supporting rollers 3, further influence the rotation of the supporting rollers 3, and be beneficial to ensuring that the rotating platform 2 can smoothly rotate around the central axis of the rotating platform. Furthermore, a plurality of supporting rollers 3 are evenly distributed on the top surface of the frame 1 along the circumferential direction by taking the central axis of the positioning shaft 4 as the center, so that the pressure of the rotating platform 2 borne by each supporting roller 3 is even, the smooth rotation of the supporting rollers 3 is ensured, and the rotating platform 2 can smoothly rotate around the central axis of the rotating platform.

One end of the leveling base 14 is installed at the bottom of the frame 1, and the other end is supported on the ground and used for adjusting the frame 1 to be horizontal, so that the rotary platform 2 can be horizontally arranged, and a workpiece placed on the rotary platform 2 cannot slide off, thereby causing danger. Preferably, four leveling bases 14 are provided, and the four leveling bases 14 are respectively positioned at four corners of the bottom surface of the rack 1, so that the leveling of the rack 1 is convenient. More preferably, the leveling base 14 is connected to the bottom of the machine frame 1 by a threaded post, which is rotated to extend or shorten the length of the leveling base 14 extending out of the machine frame 1, thereby leveling the machine frame 1.

Preferably, the rotary table further comprises a clutch 6, one end of the clutch 6 is in transmission connection with the rotary table 2, the other end of the clutch 6 is in transmission connection with the driving motor 5, and the clutch 6 can disconnect or connect the transmission between the driving motor 5 and the rotary table 2. In this embodiment, the input end and the output end of the clutch 6 can be disconnected or connected, the input end and the output end of the clutch 6 are respectively provided with a first gear 101 and a second gear 102, the rotating platform 2 is fixedly connected with a third gear 103, the output end of the driving motor 5 is connected with a fourth gear 104, the fourth gear 104 is meshed with the first gear 101, the second gear 102 is meshed with the third gear 103, so that the driving motor 5 can transmit power to the rotating platform 2, and the rotating platform 2 is driven to rotate.

Preferably, the clutch 6 is an electromagnetic clutch, the clutch 6 is connected to be disconnected and disconnected, the first gear 101 is connected to an engaging fluted disc at the input end of the clutch 6, and the second gear 102 is connected to an engaging fluted disc at the output end of the clutch 6. When the clutch 6 is powered on, the two meshing fluted discs are disengaged, the second gear 102 can rotate freely under the driving of the third gear 103, so that the rotary platform 2 can rotate freely, and the rotary platform 2 can be manually stirred to rotate freely by a maintenance operator. More preferably, the edge of the rotating platform 2 is provided with a rotating handle 21, so that a maintenance operator can rotate the rotating platform 2 by rotating the rotating handle 21, and the rotating platform 2 can rotate freely. When the clutch 6 is powered off, the two meshing fluted discs are meshed, the clutch 6 connects the first gear 101 with the second gear 102, the driving motor 5 is electrified to rotate, the forward rotation and the reverse rotation of the driving motor 5 can drive the rotary platform 2 to rotate forward and reverse through the clutch 6, and workpieces on the rotary platform 2 can be conveniently rotated to a position and an angle which are convenient for operation of maintenance operators; or the power supply of the driving motor 5 is cut off, so that the driving motor 5 does not rotate, the driving motor 5 limits the rotation of the driving platform 2 through the clutch 6, the rotating platform 2 is locked, the rotating platform 2 is driven to rotate when the maintenance operator is prevented from dismounting and repairing the workpiece, and the maintenance operator is convenient to dismount and repair the workpiece on the rotating platform 2.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A rotary workbench is characterized by comprising a rack (1), a rotary platform (2), supporting rollers (3), a positioning shaft (4) and a driving motor (5);

the rotary platform (2) is used for bearing a workpiece, one end of the supporting roller (3) is mounted on the rack (1), the other end of the supporting roller is abutted to the rotary platform (2), and the rotary platform (2) can rotate around the central axis of the rotary platform under the support of the supporting roller (3); one end of the positioning shaft (4) is connected to the center of the rotary platform (2), and the other end of the positioning shaft is rotatably connected to the rack (1); the driving motor (5) is in transmission connection with the rotating platform (2) and can drive the rotating platform (2) to rotate.

2. The rotary table according to claim 1, further comprising a clutch (6), wherein one end of the clutch (6) is in transmission connection with the rotary table (2) and the other end is in transmission connection with the driving motor (5), and the clutch (6) is used for disconnecting or connecting the transmission between the driving motor (5) and the rotary table (2).

3. A rotary table according to claim 2, wherein the clutch (6) comprises a disconnectable or connectable input and an output, the input of the clutch (6) is provided with a first gear (101), the output of the clutch (6) is provided with a second gear (102), the rotary table (2) is provided with a third gear (103), the output of the drive motor (5) is provided with a fourth gear (104), the fourth gear (104) is engaged with the first gear (101), and the second gear (102) is engaged with the third gear (103).

4. A rotary table according to claim 2, wherein the rotary table (2) is provided with a turning handle (21) for manually turning the rotary table (2) when the clutch (6) is disengaged.

5. A rotary table according to claim 1, wherein the supporting rollers (3) are provided in plurality, the plurality of supporting rollers (3) being evenly distributed around the central axis of the positioning shaft (4).

6. The rotary worktable according to claim 5, wherein a cylindrical baffle (11) is arranged on the frame (1), one end of the cylindrical baffle (11) is connected to the frame (1), the other end of the cylindrical baffle is 1mm-2mm away from the bottom surface of the rotary platform (2), and the supporting rollers (3) are all positioned in the cylindrical baffle (11).

7. The rotary workbench according to any one of claims 1 to 6, wherein a bearing seat (12) and a supporting frame (13) are arranged on the frame (1), a positioning bearing (41) and a self-aligning thrust bearing (42) are arranged on the bearing seat (12), the positioning shaft (4) is mounted on the bearing seat (12) through the positioning bearing (41) and the self-aligning thrust bearing (42), the supporting frame (13) is mounted in the frame (1), and the top end of the supporting frame (13) abuts against the bearing seat (12).

8. Rotary table according to any of the claims 1-6, characterized in that the frame (1) is provided at its bottom with a leveling base (14), which leveling base (14) is supported on the ground for leveling the rotary table (2).

9. A rotary table according to claim 2, characterized in that the clutch (6) is an electromagnetic clutch.