A turning mechanism for large bearings

Abstract

The utility model relates to a kind of turnover mechanism of large bearing, including bearing clamping mechanism, for placing and clamping bearing to be turned over;Turnover shaft can rotate around its own axis, the first end of the turnover shaft is connected with the bearing clamping mechanism, gear is installed at the second end of the turnover shaft;Rack is engaged with the gear, under the state that the rack moves, the rack drives the gear and turnover shaft rotation, and then drives the bearing clamping mechanism on the bearing to be turned over overturning.Gear's linear motion is converted into the circumferential rotation of rack, the circumferential rotation of rack drives bearing clamping mechanism to overturn while realizing the turnover of large bearing, greatly reduce cost, improve reliability.

Description

Technical Field

[0001] This utility model relates to the field of large bearing inspection, and in particular to a flipping mechanism for large bearings. Background Technology

[0002] Vibration measurement of deep groove ball bearings requires measurement from both sides, necessitating a bearing flipping mechanism. A similar automatic bearing ring flipping device is disclosed in Chinese utility model patent application number CN202421061952.X (publication number CN222289499U). Small bearings can be flipped using small pneumatic grippers and rotary cylinders, which is simple and quick; however, pneumatic grippers and rotary cylinders are expensive and have limited clamping force, making them unsuitable for flipping large bearings. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a flipping mechanism for large bearings with a reasonable structure that is suitable for flipping and inspecting large bearings, in light of the current state of the technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a flipping mechanism for a large bearing, including a bearing clamping mechanism for placing and clamping the bearing to be flipped; a flipping shaft that can rotate around its own axis, the first end of the flipping shaft being connected to the bearing clamping mechanism, and a gear being installed at the second end of the flipping shaft; and a rack that meshes with the gear. When the rack moves, the rack drives the gear and the flipping shaft to rotate, thereby causing the bearing to be flipped on the bearing clamping mechanism to flip.

[0005] Preferably, the flipping mechanism of the large bearing further includes a support, on which the rack is mounted along a direction perpendicular to the flipping axis. The support also has a limiting mechanism for limiting the movement distance of the rack. Since the rack meshes with the gear, the distance the rack moves determines the angle of gear rotation, which in turn determines the angle of bearing flipping. By using the above scheme, limiting the movement distance of the rack ensures that the bearing flips exactly 180 degrees, thus achieving the flipping mechanism.

[0006] Preferably, the limiting mechanism includes a limiting block disposed on the rack; a left buffer mounting plate located to the left of the limiting block, on which a left buffer extending to the right is mounted; and a right buffer mounting plate located to the right of the limiting block, on which a right buffer extending to the left is mounted; the limiting block can be limited by the left buffer and the right buffer. Using the above scheme, the buffer can reduce the impact force generated when the rack stops moving.

[0007] Preferably, a rack mounting plate is provided below the rack, and a sliding structure is provided between the rack mounting plate and the support. The sliding structure includes a slider disposed below the rack mounting plate and a linear guide rail disposed on the support, along which the slider can slide. This design reduces the sliding friction during rack movement.

[0008] Preferably, one end of the rack is provided with a tilting cylinder for driving the rack to reciprocate.

[0009] Preferably, a spacer is fitted on the outer peripheral wall of the flipping shaft, and flipping bearings are fitted on both ends of the spacer on the outer peripheral wall of the flipping shaft. A bearing seat fixed to the support is fitted on the outer peripheral wall of the spacer. With the above solution, the flipping shaft is disposed in the bearing seat, and the flipping shaft rotates in the bearing seat with the gear.

[0010] Preferably, both ends of the bearing housing are provided with end caps, and the end caps have through holes for the flipping shaft to pass through. Using the above solution, the end caps seal both ends of the bearing housing, thereby enclosing the flipping bearing inside the bearing housing.

[0011] Preferably, the bearing support and clamping mechanism includes an upper clamping plate and a lower clamping plate, both horizontally spaced and vertically spaced. A placement space is formed between the upper and lower clamping plates for placing the bearing to be flipped. The lower clamping plate is used to place the bearing to be flipped. The upper clamping plate has a through mounting hole, and a clamping mechanism is installed in the mounting hole to clamp the top surface of the bearing to be flipped from top to bottom. With this design, when the clamping mechanism is not clamping, it is used to pick up and place the bearing to be flipped; when the clamping mechanism is clamping, the flipping cylinder is activated to perform the flipping operation.

[0012] Preferably, the clamping mechanism includes a clamping cylinder mounted on the clamping plate of the fixed plate, with the cylinder rod extending downward from the mounting hole; and a clamping block located below the fixed plate and connected to the lower end of the cylinder rod of the clamping cylinder, capable of extending and retracting accordingly. To prevent the bearing to be flipped from slipping, the lower surface of the clamping block is provided with a rough friction surface; the upper surface of the lower clamping plate, corresponding to the clamping block, is also provided with a rough friction surface.

[0013] Compared with the prior art, the advantages of this utility model are: the linear motion of the gear is converted into the circumferential rotation of the rack, and the circumferential rotation of the rack drives the bearing clamping mechanism to flip, which can realize the flipping of large bearings, greatly reducing costs and improving reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the flipping mechanism of the large bearing in an embodiment of this utility model;

[0015] Figure 2 for Figure 1 A cross-sectional view of the flipping mechanism for medium and large bearings;

[0016] Figure 3 for Figure 2 A partial sectional view of the bearing to be flipped, with the middle clamping block pressing it down. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] like Figures 1-3 The present invention shows a preferred embodiment of the flipping mechanism of the large bearing. The flipping mechanism of the large bearing includes a support 100, a flipping shaft 21, a bearing clamping mechanism 3, a gear 22, a rack 11 and a flipping cylinder 12.

[0019] A flipping shaft 21 and a rack 11 are provided on the support 100. A bearing clamping mechanism 3 is fixedly connected to the first end of the flipping shaft 21, and a gear 22 is fixedly connected to the second end of the flipping shaft 21. The gear 22 is coaxial with the flipping shaft 21. The rack 11 is arranged along a direction perpendicular to the axis of the flipping shaft 21 and meshes with the gear 22. The bearing clamping mechanism 3 is used to place and fix the bearing 200 to be flipped. When the rack 11 is moving, the rack 11 drives the gear 22 and the flipping shaft 21 to rotate, thereby causing the bearing 200 to be flipped on the bearing clamping mechanism 3 to flip. In order to drive the rack 11 to move, a flipping cylinder mounting plate 121 is provided on the support 100 at one end of the rack 11. A flipping cylinder 12 is mounted on the flipping cylinder mounting plate 121. The cylinder rod of the flipping cylinder 12 is connected to the rack 11 and is used to drive the rack 11 to move back and forth. Meanwhile, a rack mounting plate 111 is provided below the rack 11, and a slider 112 is provided at the lower part of the rack mounting plate 111; a linear guide rail 113 adapted to the slider 112 is provided on the support 100, and the slider 112 can slide along the linear guide rail 113, which can reduce the friction when the rack 11 moves.

[0020] In this embodiment, the cylinder rod of the flipping cylinder 12 pushes the rack 11 to move. The rack 11 meshes with the gear 22, thereby sequentially driving the gear 22, the flipping shaft 21, and the bearing clamping mechanism 3 to rotate. The bearing to be flipped, placed on the bearing clamping mechanism 3, flips accordingly. The distance the rack 11 moves determines the angle at which the bearing to be flipped flips. To control the bearing to be flipped to rotate exactly 180 degrees to achieve flipping, a limiting mechanism for limiting the movement distance of the rack 11 is also provided on the support 100. The limiting mechanism includes a limiting block 131, a left buffer mounting plate 132, and a right buffer mounting plate 133. The limiting block 131 is fixedly connected to the rack mounting plate 111. The left buffer mounting plate 132 is located to the left of the limiting block 131, and a left buffer 134 extending to the right is mounted on the left buffer mounting plate 132. The right buffer mounting plate 133 is located to the right of the limiting block 131, and a right buffer 135 extending to the left is mounted on the right buffer mounting plate 133. The limiting block 131 is limited by the left buffer 134 and the right buffer 135, and can only move between the left buffer 134 and the right buffer 135, thereby limiting the movement distance of the rack mounting plate 111 and the rack 11.

[0021] like Figure 2 As shown, a spacer 211 is fitted on the outer peripheral wall of the flipping shaft 21. Flipping bearings 212 are fitted on both ends of the spacer 211 and are also fitted on the outer peripheral wall of the flipping shaft 21. A bearing seat 213 fixed to the support 100 is fitted on the outer peripheral wall of the spacer 211. The flipping shaft 21, the spacer 211 and the flipping bearings 212 are all set in the bearing seat 213. The flipping shaft 21 rotates in the bearing seat 213 with the gear 22. An end cap 214 is provided at both ends of the bearing seat 213. The end cap 214 has a through hole for the flipping shaft 21 to pass through. The end cap 214 seals both ends of the bearing seat 213, thereby sealing the flipping bearings 212 in the bearing seat 213.

[0022] A transition plate 23 is provided at the end of the flipping shaft 21 away from the gear 22, and a bearing clamping mechanism 3 is provided on the transition plate 23. The bearing clamping mechanism 3 includes a clamping plate mounting plate 31, an upper clamping plate 32, and a lower clamping plate 33. The clamping plate mounting plate 31 is fixedly connected to the transition plate 23. The upper clamping plate 32 and the lower clamping plate 33 are horizontally and spaced apart on the upper and lower end faces of the clamping plate mounting plate 31. The lower clamping plate 33 is used to place the bearing 200 to be flipped. The upper clamping plate 32 is provided with a vertically penetrating mounting hole 321. A fixing plate 34 is installed above the mounting hole 321 on the upper clamping plate 32. The fixing plate 34 is provided with a vertically penetrating through hole 341. A clamping cylinder 35 is provided above the fixing plate 34. The cylinder rod of the clamping cylinder 35 can extend downward from the through hole 341. A clamping block 36 is provided at the lower end of the cylinder rod of the clamping cylinder 35. The clamping block 36 can be accommodated in the mounting hole 321. The clamping cylinder 35 drives the clamping block 36 to clamp the bearing 200 to be flipped placed on the lower clamping plate 33.

[0023] To prevent the bearing 200 to be flipped from slipping, a rough friction surface 37 is provided on the lower surface of the clamping block 36; a rough friction surface 37 is also provided on the upper surface of the lower clamping plate 33 at the corresponding position of the clamping block 36.

[0024] The operation of the large bearing flipping mechanism in this embodiment is as follows: The distance between the left buffer 134 and the right buffer 135 is pre-adjusted so that the rack 11 moves from left to right, causing the bearing 200 to be flipped to rotate 180 degrees. The bearing 200 is placed on the lower clamping plate 33, and the clamping cylinder 35 is activated to drive the clamping block 36 downwards, causing the clamping block 36 to press against the bearing 200. Figure 3 As shown; the start-up of the flipping cylinder 12 drives the rack 11 to move. The rack 11 drives the gear 22, the flipping shaft 21 and the bearing to be flipped 200 to rotate in sequence. When the limit block 131 touches the left buffer 134 or the right buffer 135, the rack 11 stops moving. At this time, the bearing to be flipped 200 rotates 180 degrees to achieve flipping.

Claims

1. A flipping mechanism for a large bearing, characterized in that: include The bearing clamping mechanism (3) is used to place and clamp the bearing (200) to be flipped. A flipping shaft (21) that can rotate around its own axis, the first end of the flipping shaft (21) is connected to the bearing clamping mechanism (3), and a gear (22) is installed on the second end of the flipping shaft (21); The rack (11) meshes with the gear (22). When the rack (11) is moving, the rack (11) drives the gear (22) and the flipping shaft (21) to rotate, thereby causing the bearing (200) to be flipped on the bearing clamping mechanism (3) to flip.

2. The flipping mechanism for a large bearing according to claim 1, characterized in that: It also includes a support (100), the rack (11) is arranged on the support (100) along a direction perpendicular to the axis of the flipping shaft (21), and the support (100) is also provided with a limiting mechanism for limiting the movement distance of the rack (11).

3. The flipping mechanism for a large bearing according to claim 2, characterized in that: The limiting mechanism includes A limiting block (131) is disposed on the rack (11); A left buffer mounting plate (132) is located to the left of the limiting block (131), and a right-extending left buffer (134) is mounted on the left buffer mounting plate (132); A right buffer mounting plate (133) is located to the right of the limiting block (131), and a right buffer (135) extending to the left is mounted on the right buffer mounting plate (133); the limiting block (131) can be limited by the left buffer (134) and the right buffer (135).

4. The flipping mechanism for a large bearing according to claim 2, characterized in that: A rack mounting plate (111) is provided below the rack (11), and a sliding structure is provided between the rack mounting plate (111) and the support (100). The sliding structure includes... A slider (112) is disposed at the lower part of the rack mounting plate (111); A linear guide rail (113) is provided on the support (100), and the slider (112) can slide along the linear guide rail (113).

5. The flipping mechanism for a large bearing according to claim 1, characterized in that: One end of the rack (11) is provided with a tilting cylinder (12) for driving the rack (11) to reciprocate.

6. The flipping mechanism for a large bearing according to claim 2, characterized in that: A spacer (211) is fitted on the outer peripheral wall of the flipping shaft (21), and flipping bearings (212) are fitted on both ends of the spacer (211) on the outer peripheral wall of the flipping shaft (21). A bearing seat (213) fixed on the support (100) is fitted on the outer peripheral wall of the spacer (211).

7. The flipping mechanism for a large bearing according to claim 6, characterized in that: Both ends of the bearing housing (213) are provided with end caps (214), and the end caps (214) have through holes for the flipping shaft (21) to pass through.

8. The flipping mechanism for a large bearing according to any one of claims 1 to 7, characterized in that: The bearing clamping mechanism (3) includes an upper clamping plate (32) and a lower clamping plate (33) spaced apart vertically. A placement space is formed between the upper clamping plate (32) and the lower clamping plate (33) for placing the bearing (200) to be flipped. The bearing (200) to be flipped rests on the lower clamping plate (33). The upper clamping plate (32) is provided with a vertically penetrating mounting hole (321). A clamping mechanism for clamping the top surface of the bearing (200) to be flipped downwards is installed in the mounting hole (321).

9. The flipping mechanism for a large bearing according to claim 8, characterized in that: The clamping mechanism includes A clamping cylinder (35) is mounted on the upper clamping plate (32) and the cylinder rod of the clamping cylinder (35) can extend downward from the mounting hole (321); The clamping block (36) is connected to the lower end of the cylinder rod of the clamping cylinder (35) and can extend and retract accordingly.

10. The flipping mechanism for a large bearing according to claim 9, characterized in that: The lower surface of the clamping block (36) is provided with a rough friction surface (37); the upper surface of the lower clamping plate (33) is also provided with a rough friction surface (37) corresponding to the clamping block (36).

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