Precise spherical hinge bearing

Abstract

The utility model relates to the technical field of spherical hinge bearings, and discloses a precise spherical hinge bearing, which comprises a spherical hinge bearing seat and a bearing output shaft, a ball shaft sleeve is sleeved on the bearing output shaft close to the top, an angle seat is fixedly mounted on one side of the top of the spherical hinge bearing seat, and a telescopic support rod is movably mounted in the angle seat; the telescopic end of the telescopic supporting rod in the angle seat drives the clamping seat to provide a supporting point for the ball shaft sleeve outside the bearing output shaft, and the bottom end of the telescopic supporting rod can rotate in the angle seat through the penetrating shaft and can be positioned in the corresponding positioning hole in a threaded mode through the fixing bolt on the positioning plate. In this way, the clamping seat at the telescopic end of the adjustable telescopic supporting rod can stably support the exterior of the output shaft at the output end of the spherical hinge bearing seat, and the problems that lateral extrusion is generated at the inclined position of the output end of the spherical hinge bearing, the connecting position of the output shaft and the spherical hinge bearing deforms, and balls in the precise spherical hinge bearing are seriously damaged due to abrasion are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball joint bearings, in particular to a precision ball joint bearing. Background Art

[0002] The ball of the ball joint in the ball joint bearing is usually convex, and there is a spherical groove matching it in the ball seat. This design allows the ball joint to withstand forces and torques from all directions while allowing the connected parts to rotate relative to each other in space.

[0003] For example, the Chinese patent publication number CN206626086U discloses a precision ball joint bearing assembly with an inclined support seat, which is used for the precision plane movement in the lower connecting rod mechanism of the precision instrument support platform (impactor) of marine ships. The steel ball is connected to the threaded shaft of the shaft rod to form a ball rod body, the shaft rod passes through the upper ball socket and is connected to the power source through the connecting sleeve, and the locking nut is fastened to the shaft rod; the steel ball stands on the lower ball socket, the upper ball socket and the lower ball socket are centered and limited by the cone pin, and the upper and lower ball sockets are fastened to the support seat with high-strength screws and elastic washers; the support seat is a structure with an inclined surface; the upper end of the upper ball socket is equipped with a sealing cover;

[0004] In the prior art, the installation direction of the ball joint bearing can be adjusted according to needs. After the support seat and the ball joint bearing are assembled, they are used as a whole to form a component. The support platform connected to the ball joint bearing component can be designed as a planar structure, which reduces the processing difficulty of the support platform. It has the characteristics of self-alignment, high impact and tensile resistance, good lubrication performance, and easy installation.

[0005] However, when the existing ball joint bearing outputs obliquely to the output end connecting shaft, the obliquely rotating connecting shaft lacks a support point on the outside. When the output end of the ball joint bearing rotates obliquely, lateral extrusion occurs between the ball joint bearing and the connecting shaft, causing deformation of the connection between the output shaft and the ball joint bearing, a high bearing damage rate, and a greatly reduced service life. Utility Model Content

[0006] The purpose of the utility model is to provide a precision ball joint bearing, which can serve as a support point for the external connecting shaft of the bearing seat, prevent lateral extrusion at the inclined output end of the ball joint bearing, cause deformation of the connection between the output shaft and the ball joint bearing, and cause serious damage to the internal balls of the precision ball joint bearing due to wear.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precision ball joint bearing, comprising a ball joint bearing seat and a bearing output shaft, the bearing output shaft is provided with a ball sleeve near the top, an angle seat is fixedly installed on one side of the top of the ball joint bearing seat, a telescopic support rod is movably installed inside the angle seat, a clamping seat is fixedly installed on the top of the telescopic support rod, the bearing output shaft is slidably engaged in the inner wall of the clamping seat through the ball sleeve, a through shaft is penetrated and connected on one side of the angle seat, a positioning hole is penetrated on one side of the angle seat, a turntable is fixedly installed on one end of the through shaft, and a positioning plate is installed on the outside of the through shaft.

[0008] Preferably, a positioning bolt is installed outside the movable end of the telescopic support rod, and the positioning bolt is used to position the telescopic end of the telescopic support rod.

[0009] Preferably, fixing bolts are threadedly mounted on the outside of the positioning plate.

[0010] Preferably, the plurality of groups of positioning holes are arranged at equal intervals around the circumference.

[0011] Preferably, the fixing bolt passes through the turntable and is installed in the corresponding inner wall of the positioning hole.

[0012] Preferably, the telescopic support rod is rotated in the inner wall of the corner seat through a through shaft.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model drives the clamping seat to provide a support point for the ball bushing outside the bearing output shaft through the telescopic end of the telescopic support rod in the angle seat, and the bottom end of the telescopic support rod can be rotated in the angle seat through the through shaft, and can be positioned in the corresponding positioning hole through the fixing bolt thread on the positioning plate. In this way, the clamping seat at the telescopic end of the telescopic support rod can be adjusted to provide stable support for the outside of the output shaft of the bearing at the output end of the ball joint bearing seat, thereby preventing lateral extrusion at the inclined part of the output end of the ball joint bearing, causing deformation of the connection between the output shaft and the ball joint bearing, and causing serious wear and damage to the balls inside the precision ball joint bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the side structure of the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] In the figure: 1. ball joint bearing seat; 2. bearing output shaft; 3. telescopic support rod; 4. angle seat; 5. clamping seat; 6. positioning plate; 7. through shaft; 21. ball bushing; 31. positioning bolt; 41. positioning hole; 61. fixing bolt; 71. turntable. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] See also Figure 1-4 The utility model provides a technical solution: a precision ball joint bearing, including a ball joint bearing seat 1, a bearing output shaft 2, the bearing output shaft 2 is provided with a ball sleeve 21 near the top, an angle seat 4 is fixedly installed on one side of the top of the ball joint bearing seat 1, a telescopic support rod 3 is movably installed inside the angle seat 4, and a clamping seat 5 is fixedly installed on the top of the telescopic support rod 3;

[0022] The bearing output shaft 2 is slidably engaged in the inner wall of the seat 5 through the ball bushing 21, a through shaft 7 is connected to one side of the angle seat 4, a positioning hole 41 is opened through one side of the angle seat 4, a rotating disk 71 is fixedly installed at one end of the through shaft 7, and a positioning plate 6 is installed on the outer side of the through shaft 7;

[0023] The ball joint bearing seat 1 can bear forces and torques from all directions through the internal ball joint, while allowing the connected parts to rotate relative to each other in space;

[0024] The telescopic end of the telescopic support rod 3 in the angle seat 4 drives the clamping seat 5 to provide a support point for the external ball sleeve 21 of the bearing output shaft 2, and the bottom end of the telescopic support rod 3 can be rotated in the angle seat 4 through the through shaft 7, and can be threadedly positioned in the corresponding positioning hole 41 through the fixing bolt 61 on the positioning plate 6. In this way, the clamping seat 5 at the telescopic end of the telescopic support rod 3 can be adjusted to provide stable support for the external part of the bearing output shaft 2 at the output end of the ball joint bearing seat 1, thereby preventing lateral friction from being generated at the inclined part of the output end of the ball joint bearing seat 1, causing the problem of serious wear and damage to the internal balls of the precision ball joint bearing.

[0025] Among them, a positioning bolt 31 is installed on the outside of the movable end of the telescopic support rod 3, and the positioning bolt 31 is used to position the telescopic end of the telescopic support rod 3. The telescopic end of the telescopic support rod 3 can drive the holder 5 to adjust the height upward, and the fixed end of the telescopic support rod 3 can rotate in the angle seat 4, so that the holder 5 of the telescopic end of the telescopic support rod 3 can adjust the connection support to the external ball sleeve 21 of the oblique bearing output shaft 2.

[0026] Among them, a fixing bolt 61 is installed on the outside of the positioning plate 6 through a thread, and a plurality of positioning holes 41 are arranged at equal intervals on a circle. The fixing bolt 61 passes through the turntable 71 and is installed in the inner wall of the corresponding positioning hole 41. The telescopic support rod 3 is rotated in the inner wall of the angle seat 4 through the through-shaft 7. The bottom end of the telescopic support rod 3 can be rotated in the angle seat 4 through the through-shaft 7, and can be threadedly positioned in the corresponding positioning hole 41 through the fixing bolt 61 on the positioning plate 6. In this way, the telescopic end holder 5 of the telescopic support rod 3 can be adjusted to provide stable support for the outside of the output shaft 2 of the output end bearing of the ball joint bearing seat 1.

[0027] Working principle: When in use, when the bearing output shaft 2 is output obliquely through the ball joint bearing seat 1, the angle seat 4 can be fixed on one side of the top of the ball joint bearing seat 1, and the telescopic end of the telescopic support rod 3 in the angle seat 4 drives the clamping seat 5 to provide a support point for the external ball sleeve 21 of the bearing output shaft 2, and the bottom end of the telescopic support rod 3 can be rotated in the angle seat 4 through the through shaft 7, and can be threadedly positioned in the corresponding positioning hole 41 through the fixing bolt 61 on the positioning plate 6. In this way, the clamping seat 5 at the telescopic end of the telescopic support rod 3 can be adjusted to provide a stable support for the external part of the bearing output shaft 2 at the output end of the ball joint bearing seat 1, thereby preventing lateral extrusion at the inclined part of the output end of the ball joint bearing seat 1, causing deformation of the connection between the bearing output shaft 2 and the ball joint bearing seat 1, and causing serious wear and damage to the internal balls of the precision ball joint bearing.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to the embodiments without departing from the principles of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision ball joint bearing, comprising a ball joint bearing seat (1) and a bearing output shaft (2), characterized in that: A ball sleeve (21) is provided near the top of the bearing output shaft (2); an angle seat (4) is fixedly installed on one side of the top of the ball joint bearing seat (1); a telescopic support rod (3) is movably installed inside the angle seat (4); a clamping seat (5) is fixedly installed on the top of the telescopic support rod (3); the bearing output shaft (2) is slidably engaged in the inner wall of the clamping seat (5) through the ball sleeve (21); a through shaft (7) is penetrated and connected to one side of the angle seat (4); a positioning hole (41) is penetrated and opened on one side of the angle seat (4); a rotating disk (71) is fixedly installed on one end of the through shaft (7); and a positioning plate (6) is installed on the outer side of the through shaft (7).

2. A precision ball joint bearing according to claim 1, characterized in that: A positioning bolt (31) is installed outside the movable end of the telescopic support rod (3), and the positioning bolt (31) is used to position the telescopic end of the telescopic support rod (3).

3. The precision ball joint bearing according to claim 1, characterized in that: The exterior of the positioning plate (6) is threadedly mounted with a fixing bolt (61).

4. The precision ball joint bearing according to claim 1, characterized in that: The plurality of groups of positioning holes (41) are arranged at equal intervals around the circumference.

5. The precision ball joint bearing according to claim 3, characterized in that: The fixing bolt (61) passes through the rotating disk (71) and is installed in the inner wall of the corresponding positioning hole (41).

6. The precision ball joint bearing according to claim 1, characterized in that: The telescopic support rod (3) is rotated in the inner wall of the corner seat (4) via a through shaft (7).

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