CN212360498U

CN212360498U - Compact turntable mechanism

Info

Publication number: CN212360498U
Application number: CN202021677421.5U
Authority: CN
Inventors: 仇志龙; 宋克涛
Original assignee: Shenyang Xuyang Zhongye Seat Co ltd
Current assignee: Shenyang Xuyang Zhongye Seat Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-01-15
Anticipated expiration: 2030-08-13

Abstract

A compact turntable mechanism belongs to the technical field of mechanical accessories. The utility model aims at increasing the compact turntable mechanism of the stability of the turntable mechanism through the double-insurance form of the roller pin and the ball. The inner side of the upper plate is positioned and clamped by the inner clamping table at the inner side of the lower plate, and the upper plate and the lower plate are fastened and installed by the upper and lower plate fastening bolts through the threaded holes; the inner side part of the lower disc, the lower edge of the lower disc and the upper disc are enclosed into a concave groove, the upper surface of the middle disc is provided with an upper retaining ring, the lower surface of the middle disc is provided with a lower retaining ring, the inner side protruding part of the middle disc extends into the concave groove, needle roller bearings are respectively arranged between the inner side protruding part and the upper disc as well as between the inner side protruding part and the lower disc, and the opening end of the concave groove is sealed by the upper retaining ring and the lower retaining ring; the front end of the upper disc is downwards provided with a front edge ring, the upper baffle ring, the middle disc, the front edge ring and the upper disc enclose a rolling interval, and balls are placed in the rolling interval. The utility model discloses simple structure, the cooperation installation is reasonable, plays radial and axial positioning effect, can bear radial load and also can bear axial load.

Description

Compact turntable mechanism

Technical Field

The utility model belongs to the technical field of machine parts.

Background

The turntable mechanism is an existing accessory widely applied to various fields, has different structures and forms, and mainly forms an angle displacement between two parts by using the turntable mechanism as a connection. Most of conventional mechanical turntables simply adopt a bearing or a ball to perform angular displacement between two turntables, and the stability and the safety of the conventional mechanical turntables are relatively low.

Disclosure of Invention

The utility model aims at increasing the compact turntable mechanism of the stability of the turntable mechanism through the double-insurance form of the roller pin and the ball.

The utility model comprises an upper plate, a middle plate and a lower plate which are arranged in a matching way; the inner side of the upper disc is positioned and clamped by an inner side clamping table, an upper disc fastening threaded hole is formed in the lower disc and corresponds to the threaded hole of the upper disc, and the upper disc and the lower disc are fastened and installed by upper and lower disc fastening bolts through the corresponding threaded hole; the inner side part of the lower disc, the lower disc and the upper disc enclose a concave groove, the upper surface of the middle disc is provided with an upper retaining ring, the lower surface of the middle disc is provided with a lower retaining ring, the inner side protruding part of the middle disc extends into the concave groove, needle roller bearings are respectively arranged between the inner side protruding part and the lower edges of the upper disc and the lower disc, and the opening end of the concave groove is sealed by the upper retaining ring and the lower retaining ring and seals the needle roller bearings; the front end of the upper disc is downwards provided with a front edge ring, the upper baffle ring, the middle disc, the front edge ring and the upper disc enclose a rolling interval, and balls are placed in the rolling interval.

The utility model discloses simple structure, the cooperation installation is reasonable, and the ball sets up in the middle of hanging wall and intervalve disk in, plays the radial positioning effect, sets up bearing between hanging wall and intervalve disk and lower wall and the intervalve disk respectively, plays the axial positioning effect. And locking the upper disc and the lower disc by using an inner hexagonal cylindrical head bolt. The mechanism has the characteristics of compact structure and can bear radial load and axial load.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

fig. 3 is an explosion diagram of the whole structure of the present invention.

Detailed Description

The utility model discloses an upper plate 1, well dish 12 and lower wall 9 of installation mutually support, the free rotation of 360 degrees can be realized carrying out between each other to the installation form of upper plate 1 and lower wall 9 and well dish 12, and upper plate 1, well dish 12 and the conventional circular taking of lower wall 9 are given (as shown in figure 1), because circular not mutual interference in rotatory process, also can set to other shapes according to concrete case periphery, as long as upper plate 1, well dish 12 and lower wall 9 do not mutual interference when rotatory be accurate. The inner side of the lower disc 9 is provided with an inner side clamping table 6 for positioning and clamping the inner side of the upper disc 1, the inner side of the upper disc 1 and the inner side of the lower disc 9 are positioned by the inner side clamping table 6, the lower disc 9 is provided with an upper disc fastening threaded hole 7 corresponding to the threaded hole of the upper disc 1, the upper disc 1 and the lower disc 9 are fastened and installed by the upper disc fastening bolt 5 and the lower disc fastening bolt 5 through the corresponding threaded hole, the fastening bolt 5 preferably adopts hexagon socket head cap bolts, and the number of the fastening bolts 5 is determined according to the situation so as to be subject to stable fastening. The inner portion 8 of the lower disc 9, the lower edge of the lower disc 9 and the upper disc 1 enclose a concave groove 4, the upper surface of the middle disc 12 is provided with a circle of upper retaining rings 2, the lower surface of the middle disc is provided with a lower retaining ring 11, the upper retaining rings 2 and the lower retaining rings 11 generally enclose a circular ring, and the cross section of the middle disc 12 is similar to a cross (in fig. 2, the upper retaining rings 2, the lower retaining rings 11, the inner protruding portion 3 and the outer protruding portion of the middle disc 12 form a cross).

The inner side protruding part 3 of the middle disc 12 extends into the concave groove 4, and the needle roller bearings 10 are arranged between the inner side protruding part 3 and the upper disc 1 and the lower disc 9, so that the upper disc 1 and the lower disc 9 are integrated, and the middle disc 12 can only rotate in the rolling direction of the cylindrical needle rollers of the needle roller bearings 10 during rotation, and any movement in other directions can not occur. The open end of the concave groove 4 is closed by the upper retaining ring 2 and the lower retaining ring 11, and the needle bearings 10 are encapsulated, by the structure, the needle roller limiting seats of the two needle bearings 10 can be respectively extruded and fixed in the concave groove 4 by the upper retaining ring 2 and the lower retaining ring 11, and the needle rollers (cylindrical) of the needle bearings 10 can roll, so that the rotation of the upper disc 1, the lower disc 9 and the middle disc 12 is completed by the rolling of the needle rollers, and the rolling rotation between the upper disc and the middle disc and between the lower disc and the middle disc is partially described, and the axial positioning effect is achieved.

A front edge ring 14 is arranged at the front end of the upper disc 1 downwards, the upper baffle ring 2, the middle disc 12, the front edge ring 14 and the upper disc 1 enclose a rolling interval 15, and balls 13 are arranged in the rolling interval 15; the rolling section 15 can effectively enclose the balls 13 therein. Thus, the balls are arranged between the upper disc and the middle disc, and play a role in radial positioning while completing rolling rotation.

The utility model discloses an upper plate 1 and lower wall 9 are fixed connection together, are holding the well dish 12 through two kinds of forms of kingpin and ball, and like this, upper plate 1 and lower wall 9 complex will form 360 degrees relative rotations with well dish 12. Generally, the outer extending part of the middle disc 12 is more than the combination of the upper disc 1 and the lower disc 9, so that two parts which need to rotate relatively are arranged, one part is arranged on the outer extending part of the middle disc 12, and the other part is arranged on the upper disc 1, thus the utility model can assist the two parts which need to rotate to complete the rotation work. For compactness, the lower disc 9 of the present application can fully lie within the lower retainer ring 11 of the middle disc 12 (e.g., the portion where the outer edge of the lower disc 9 contacts the lower retainer ring 11 in fig. 2), while the upper disc 1 substantially like a lid covers the upper retainer ring 2 of the middle disc 12, but this section is contacted by balls (e.g., the portion where the leading ring 14 and the balls 13 of the upper disc 1 contact the upper retainer ring 2 in fig. 2). Therefore, the connection can embody that the upper plate 1, the lower plate 9 and the middle plate 12 are mounted more compactly, thereby saving the occupied space.

Claims

1. A compact carousel mechanism which characterized in that: comprises an upper disc (1), a middle disc (12) and a lower disc (9) which are mutually matched and arranged; the inner side of the upper disc (1) is positioned and clamped at the inner side of the lower disc (9) through an inner side clamping table (6), the lower disc (9) is provided with an upper disc fastening threaded hole (7) and corresponds to the threaded hole of the upper disc (1), and the upper disc (1) and the lower disc (9) are fastened and installed through the corresponding threaded hole by an upper disc fastening bolt (5) and a lower disc fastening bolt (5); the inner side part (8) of the lower disc (9), the lower edge of the lower disc (9) and the upper disc (1) are enclosed to form a concave groove (4), the upper surface of the middle disc (12) is provided with an upper retaining ring (2), the lower surface of the middle disc (12) is provided with a lower retaining ring (11), the inner side protruding part (3) of the middle disc (12) extends into the concave groove (4), needle roller bearings (10) are respectively arranged between the inner side protruding part (3) and the upper disc (1) and between the inner side protruding part and the lower disc (9), the open end of the concave groove (4) is sealed through the upper retaining ring (2) and the lower retaining ring (11), and the needle roller bearings (10) are packaged; a front edge ring (14) is arranged at the front end of the upper disc (1) downwards, a rolling interval (15) is enclosed by the upper baffle ring (2), the middle disc (12), the front edge ring (14) and the upper disc (1), and balls (13) are placed in the rolling interval (15).