Rolling ball guide rail capable of resisting torsional pendulum
By setting a correction component and a limiting groove in the ball guide, the problems of reduced positioning accuracy and runout caused by ball wear are solved, thus achieving stable operation and extended life of the ball guide.
Patent Information
- Application Number
- CN202520635216.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-04-07
AI Technical Summary
During use, existing ball bearing guides experience increased clearance due to ball wear, resulting in reduced positioning accuracy, runout, and vibration. Furthermore, increased friction can lead to more severe runout problems.
A ball bearing guide rail with anti-torsional sway is designed. By setting a correction component, including a housing, a movable plate, an elastic element and a limiting groove, the gap between the ball and the guide rail is compensated, the ball contact points are evenly distributed, to prevent torsion, and an indicator rod is used to remind maintenance.
To ensure the stability of the ball bearing guide, reduce local wear, extend service life, avoid equipment downtime, remind timely maintenance, and prevent damage to the balls and guide.
Smart Images
Figure CN223725177U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ball guide rail technical field, concretely is a kind of ball guide rail of anti-torsional swing. BACKGROUND
[0002] Linear guide rail is also called linear rail, slide rail, linear guide rail, linear slide rail, which is used for high-precision or high-speed linear reciprocating motion occasions, and can bear a certain torque, so that high-precision linear motion can be realized under high load. Linear guide rails can be divided into three types: roller linear guide rails, cylindrical linear guide rails and ball linear guide rails. They are used to support and guide moving parts to move linearly in a given direction. Linear motion guide rails can be classified into sliding friction guide rails, rolling friction guide rails, elastic friction guide rails and fluid friction guide rails.
[0003] However, during actual use, the wear of the balls can increase the gap between the guide rail and the balls, resulting in a decrease in the positioning accuracy of the guide rail, which may further cause the system to deviate, vibrate or become unstable. As the wear progresses further, the contact surface of the guide rail becomes uneven, the friction and running resistance increase, and more serious deviation problems may occur. In view of this, the present utility model provides a ball guide rail capable of resisting torsional swing. UTILITY MODEL CONTENTS
[0004] The utility model aims to provide a ball guide rail capable of resisting torsional swing to solve the problems raised in the background.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a ball guide rail capable of resisting torsional swing, comprising a sliding member, a guide rail body movably connected to the bottom of the sliding member, and a deviation correction assembly arranged on the inner wall of the sliding member.
[0006] A housing is fixedly connected to the inner wall of the sliding member, and a ball body is movably connected to the outer wall of the housing. A limiting rod is fixedly connected to the inner wall of the housing.
[0007] An activity plate is provided with a sliding groove on the side wall, an elastic member is fixedly connected to the top end face of the activity plate, and an elastic telescopic rod one is fixedly connected to the bottom end face of the activity plate. A butt joint disc one is fixedly connected to the end of the elastic telescopic rod one away from the activity plate.
[0008] An indicating rod is fixedly connected to the top end face of the activity plate.
[0009] Preferably, the butt joint disc one is movably connected to the ball body, and the end of the elastic member away from the activity plate is fixedly connected to the inner top surface of the housing.
[0010] Preferably, the bottom end surface of the movable plate is fixedly connected with an elastic telescopic rod two, and the elastic telescopic rod two is fixedly connected with an abutting disc two at the end away from the movable plate.
[0011] Preferably, the abutting disc two is movably connected with the ball body, and the angle between the axis of the abutting disc two and the movement direction of the sliding piece is 60°, so that an unbalanced force is applied to the ball body, the ball body gradually deviates during rotation, the ball body no longer rotates along a fixed radial direction, the contact points of the ball body and the guide rail body are uniformly distributed, and local wear is reduced.
[0012] Preferably, the inner wall of the sliding piece is provided with a limiting groove, and the limiting groove is slidably connected with the guide rail body; the limiting groove limits the movement of the sliding piece, so that the sliding piece moves in a linear direction, and the wobble of the sliding piece is prevented.
[0013] Preferably, the limiting rod is slidably connected with the sliding groove, and the movement direction of the limiting rod is perpendicular to the movement direction of the sliding piece, so that the elastic piece drives the movable plate to move away from the elastic piece.
[0014] Compared with the prior art, the anti-wobble ball guide rail has the following beneficial effects:
[0015] 1. The anti-wobble ball guide rail is provided with the deviation rectifying assembly, the elastic telescopic rod one drives the worn ball body, compensates the gap between the ball body and the guide rail body, makes the ball body always in close contact with the surface of the guide rail body, and then ensures the stability of the ball guide rail, prevents local overload or failure caused by the failure of some ball bodies, and reminds the staff to maintain the ball guide rail after the indicating rod completely enters the surface of the housing, so that the ball body failure, the guide rail body damage or equipment downtime caused by excessive wear are avoided.
[0016] 2. The anti-wobble ball guide rail is provided with the elastic telescopic rod two and the abutting disc two, an unbalanced force is applied to the ball body, the ball body gradually deviates during rotation, the ball body no longer rotates along a fixed radial direction, the contact points of the ball body and the guide rail body are uniformly distributed, and local wear is reduced. DRAWINGS
[0017] Figure 1 It is a schematic view of the main structure of the utility model;
[0018] Figure 2 It is a schematic view of the sliding piece structure of the utility model;
[0019] Figure 3 It is a schematic view of the cross section structure of the housing of the utility model;
[0020] Figure 4 The utility model discloses Figure 3 A region structure schematic diagram.
[0021] In the drawing: 1, sliding piece, 2, guide rail body, 3, deviation rectifying subassembly, 301, casing, 302, ball body, 303, limit rod, 304, movable plate, 305, sliding slot, 306, elastic piece, 307, abutment disc one, 308, indicating rod, 309, elastic telescopic rod one, 4, limit slot, 5, elastic telescopic rod two, 6, abutment disc two. Specific implementation
[0022] As Figures 1-4 Indicated, the utility model provides a kind of technical scheme: a kind of anti-torsional swing ball guide rail, including sliding piece 1, the bottom of sliding piece 1 is movably connected with guide rail body 2, the inner wall of sliding piece 1 is provided with deviation rectifying subassembly 3, deviation rectifying subassembly 3 includes casing 301, ball body 302, limit rod 303, movable plate 304, sliding slot 305, elastic piece 306, abutment disc one 307, indicating rod 308, elastic telescopic rod one 309.
[0023] In an embodiment of the utility model, casing 301 is fixedly connected in the inner wall of sliding piece 1, the outer wall of casing 301 is movably connected with ball body 302, the inner wall of casing 301 is fixedly connected with limit rod 303, the inner wall of sliding piece 1 is provided with limit slot 4, limit slot 4 is movably connected with guide rail body 2, limit slot 4 limits the movement of sliding piece 1, makes sliding piece 1 movement in linear direction, prevents torsional swing of sliding piece 1.
[0024] The side wall of movable plate 304 is provided with sliding slot 305, limit rod 303 is movably connected with sliding slot 305, limit rod 303 is perpendicular to the movement direction of sliding piece 1, to make elastic piece 306 push movable plate 304 movement in the direction away from elastic piece 306, the top end surface of movable plate 304 is fixedly connected with elastic piece 306, the bottom end surface of movable plate 304 is fixedly connected with elastic telescopic rod one 309, the end, away from movable plate 304 of elastic telescopic rod one 309, is fixedly connected with abutment disc one 307, abutment disc one 307 is movably connected with ball body 302, the end, away from movable plate 304 of elastic piece 306, is fixedly connected with the inside top surface of casing 301, indicating rod 308 is fixedly connected in the top end surface of movable plate 304.
[0025] The inner wall of the sliding piece 1 is provided with a limiting groove 4, the limiting groove 4 is in sliding connection with the guide rail body 2, the limiting groove 4 limits the movement of the sliding piece 1, the sliding piece 1 moves in the linear direction, the torsional swing of the sliding piece 1 is prevented, when the ball bodies 302 are worn, the wear causes the gap between the ball bodies 302 and the guide rail body 2 to increase, the running accuracy of the ball guide rail is reduced, the elastic telescopic rod one 309 pushes the worn ball bodies 302, the gap is compensated, the ball bodies 302 are always in close contact with the surface of the guide rail body 2, and then the stability of the running of the ball guide rail is ensured, local overload or failure caused by the failure of some ball bodies 302 is prevented, when the ball bodies 302 are all worn, the elastic member 306 pushes the movable plate 304 to move away from the elastic member 306, then the indicating rod 308 moves to the inside of the shell 301, when it is observed that the indicating rod 308 completely enters the surface of the shell 301, the staff needs to maintain the ball guide rail, the ball bodies 302 are prevented from being failed due to excessive wear, the guide rail body 2 is prevented from being damaged or the equipment from being stopped.
[0026] In addition, the bottom end face of the movable plate 304 is fixedly connected with the elastic telescopic rod two 5, one end, away from the movable plate 304, of the elastic telescopic rod two 5 is fixedly connected with the abutting disc two 6, the abutting disc two 6 is in movable connection with the ball bodies 302, the angle between the axis of the abutting disc two 6 and the movement direction of the sliding piece 1 is 60°, an unbalanced force is applied to the ball bodies 302, then the ball bodies 302 gradually deviate when rotating, the ball bodies 302 no longer rotate along a fixed radial direction, the contact points of the ball bodies 302 and the guide rail body 2 are uniformly distributed, local wear is reduced, the service life of the guide rail body 2 and the ball bodies 302 is prolonged, and the replacement frequency of parts is reduced.
[0027] In the utility model, in use, the limiting groove 4 is in sliding connection with the guide rail body 2, the limiting groove 4 limits the movement of the sliding piece 1, the sliding piece 1 moves in the linear direction, the torsional swing of the sliding piece 1 is prevented, when the ball bodies 302 are worn, the elastic telescopic rod one 309 pushes the worn ball bodies 302, the gap between the ball bodies 302 and the guide rail body 2 is compensated, the ball bodies 302 are always in close contact with the surface of the guide rail body 2, and then the stability of the running of the ball guide rail is ensured, when it is observed that the indicating rod 308 completely enters the surface of the shell 301, the staff needs to maintain the ball guide rail, the ball bodies 302 are prevented from being failed due to excessive wear, the guide rail body 2 is prevented from being damaged or the equipment from being stopped.
[0028] The utility model has made the detailed description to the utility model generally above, but can make some modification or improvement to it on the basis of the utility model, this is obvious to the general skilled person in the technical field. Therefore, the modification or improvement without departing from the utility model thought spirit, all are within the protection scope of the utility model.
Claims
1. A torsionally rigid ball guide rail, comprising a sliding member (1), the bottom of the sliding member (1) movably connected with a guide rail body (2), characterized in that: The inner wall of the sliding piece (1) is provided with a deviation rectifying assembly (3), which comprises: A shell (301) is fixedly connected to the inner wall of the sliding piece (1), and the outer wall of the shell (301) is movably connected with a ball body (302), and the inner wall of the shell (301) is fixedly connected with a limiting rod (303); An activity plate (304) is provided with a sliding groove (305) on the side wall, and the top end surface of the activity plate (304) is fixedly connected with an elastic element (306), and the bottom end surface of the activity plate (304) is fixedly connected with an elastic telescopic rod (309), and the end of the elastic telescopic rod (309) away from the activity plate (304) is fixedly connected with an abutting disc (307); An indicating rod (308) is fixedly connected to the top end surface of the activity plate (304).
2. The anti-whipping ball guide rail according to claim 1, wherein: The abutting disc (307) is movably connected with the ball body (302), and the end of the elastic element (306) away from the activity plate (304) is fixedly connected with the inner top surface of the shell (301).
3. The anti-whipping ball guide rail according to claim 1, wherein: The bottom end surface of the activity plate (304) is fixedly connected with an elastic telescopic rod (5), and the end of the elastic telescopic rod (5) away from the activity plate (304) is fixedly connected with an abutting disc (6).
4. The anti-whipping ball guide rail according to claim 3, wherein: The abutting disc (6) is movably connected with the ball body (302), and the angle between the axis of the abutting disc (6) and the movement direction of the sliding piece (1) is 60°.
5. The anti-whipping ball guide rail according to claim 1, wherein: The inner wall of the sliding piece (1) is provided with a limiting groove (4), and the limiting groove (4) is movably connected with the guide rail body (2).
6. The anti-whipping ball guide rail according to claim 1, wherein: The limiting rod (303) is movably connected with the sliding groove (305), and the movement direction of the limiting rod (303) is perpendicular to the movement direction of the sliding piece (1).