阅读说明：本技术 一种可升降滚珠万向轮 (Liftable ball universal wheel ) 是由 鲜玉强 张�林 张伟 崔鼎 李雪峰 严从林 荆建瑛 陈涛 叶长春 于 2020-12-03 设计创作，主要内容包括：本发明公开一种可升降滚珠万向轮,包括固定底板,固定底板上扣合有壳体,壳体内设置有上滑块和下滑块,上滑块与固定底板抵持,下滑块与壳体之间设置有压缩弹簧,上滑块与下滑块的接触面设置为滑动斜面,下滑块远离上滑块的一侧设置有支撑滚珠,壳体上设置有用于安装支撑滚珠的第一开口；还包括调整螺钉,调整螺钉与上滑块螺纹连接,壳体上设置有供调整螺钉穿过的第二开口。调整螺钉调节上滑块的水平位置,进而调节下滑块的高度,最后达到调节支撑滚珠高度的效果,不仅降低了劳动强度,并且适用于操作空间受限、不具备吊装条件且需在水平面内移动调整、调平的精密设备的精确安装定位。(The invention discloses a lifting ball universal wheel which comprises a fixed base plate, wherein a shell is buckled on the fixed base plate, an upper sliding block and a lower sliding block are arranged in the shell, the upper sliding block is abutted against the fixed base plate, a compression spring is arranged between the lower sliding block and the shell, the contact surface of the upper sliding block and the lower sliding block is a sliding inclined surface, a supporting ball is arranged on one side of the lower sliding block, which is far away from the upper sliding block, and a first opening for installing the supporting ball is arranged on the shell; still include adjusting screw, adjusting screw and top shoe threaded connection are provided with the second opening that supplies adjusting screw to pass on the casing. The adjusting screw adjusts the horizontal position of the upper sliding block, further adjusts the height of the lower sliding block, and finally achieves the effect of adjusting the height of the supporting ball, so that the labor intensity is reduced, and the device is suitable for accurate installation and positioning of precision equipment which is limited in operation space, does not have hoisting conditions and needs to be adjusted and leveled in a horizontal plane.)

1. A lifting ball universal wheel is characterized by comprising a fixed base plate, wherein a shell is buckled on the fixed base plate, an upper sliding block and a lower sliding block are arranged in the shell, the upper sliding block abuts against the fixed base plate, a compression spring is arranged between the lower sliding block and the shell, the contact surface of the upper sliding block and the lower sliding block is a sliding inclined surface, a supporting ball is arranged on one side, away from the upper sliding block, of the lower sliding block, and a first opening for mounting the supporting ball is formed in the shell; still include adjusting screw, adjusting screw with go up sliding block threaded connection, be provided with the confession on the casing the second opening that adjusting screw passed.

2. The liftable ball universal wheel according to claim 1, wherein a limit baffle is arranged on the second opening, and the limit baffle is used for limiting the axial movement distance of the adjusting screw.

3. The liftable ball universal wheel according to claim 1, wherein the upper sliding block is a hollow structure, and one end of the adjusting screw penetrates through one side wall of the upper sliding block and enters the hollow structure.

4. The liftable ball universal wheel according to claim 1, wherein the lower slider is provided with a spring hole for accommodating the compression spring.

5. The liftable ball universal wheel according to claim 1, wherein the number of the compression springs is two, and the compression springs are respectively arranged at two ends of the lower sliding block.

6. The liftable ball universal wheel according to claim 1, wherein an arc-shaped groove is formed in one end of the lower sliding block, which is far away from the upper sliding block, and the arc-shaped groove is used for accommodating the supporting ball.

7. The liftable ball universal wheel according to claim 6, wherein a small ball layer is arranged between the arc-shaped groove and the support balls, and the small ball layer comprises a plurality of small balls.

8. The liftable ball universal wheel according to claim 7, further comprising a support ball cover plate, wherein the support ball cover plate is provided with a third opening adapted to the support ball, and the support ball cover plate is detachably connected to the lower slider.

9. The liftable ball castor of claim 8, wherein said support balls are in clearance fit with said support ball cover plate.

Technical Field

The invention relates to the field of adjustment of mobile precision equipment, in particular to a lifting ball universal wheel.

Background

As shown in fig. 1, the conventional universal ball wheel (commonly called as a bull's eye) is used in combination of three or more groups to solve the problem of horizontal movement of the supported object, mainly by fixing the supporting balls on the concave spherical body through the supporting ball cover plate and then fixing the concave spherical body on the supported object. In the figure are respectively: the supporting device comprises a supported object, a mounting screw, a concave spherical body, a cover plate screw, a supporting ball and a supporting ball cover plate. The conventional common universal ball wheel does not have the lifting function, does not have the problems of height adjustment and leveling positioning within a certain range after being moved in place by supporting equipment, and particularly brings great trouble to workers under the conditions that the operation space is limited and hoisting conditions are not met. Therefore, there is a need for a liftable ball castor capable of adjusting the height and position of a supported device.

Disclosure of Invention

The invention aims to solve the technical problems and provides a lifting ball universal wheel, aiming at the existing problems, the adjusting screw adjusts the horizontal position of an upper sliding block, further adjusts the height of a lower sliding block and finally achieves the effect of adjusting the height of a supporting ball, so that the labor intensity is reduced, and the lifting ball universal wheel is suitable for the accurate installation and positioning of precise equipment which is limited in operation space, does not have hoisting conditions and needs to move, adjust and level in a horizontal plane.

The technical scheme adopted by the invention is as follows: a lifting ball universal wheel comprises a fixed base plate, wherein a shell is buckled on the fixed base plate, an upper sliding block and a lower sliding block are arranged in the shell, the upper sliding block abuts against the fixed base plate, a compression spring is arranged between the lower sliding block and the shell, the contact surface of the upper sliding block and the lower sliding block is a sliding inclined surface, a supporting ball is arranged on one side, away from the upper sliding block, of the lower sliding block, and a first opening for mounting the supporting ball is formed in the shell; still include adjusting screw, adjusting screw with go up sliding block threaded connection, be provided with the confession on the casing the second opening that adjusting screw passed. The adjusting screw adjusts the horizontal position of the upper sliding block, so that the height of the lower sliding block is adjusted, and finally the effect of adjusting the height of the supporting ball is achieved, so that the labor intensity is reduced, and the device is suitable for accurate installation and positioning of precision equipment which is limited in operation space, does not have hoisting conditions and needs to move, adjust and level in a horizontal plane.

Preferably, a limit baffle is arranged on the second opening and used for limiting the axial movement distance of the adjusting screw. So that the adjusting screw can only rotate and can not move along the axial direction.

Preferably, the upper sliding block is of a hollow structure, and one end of the adjusting screw penetrates through one side wall of the upper sliding block and enters the hollow structure.

Preferably, the lower slider is provided with a spring hole, and the spring hole is used for accommodating the compression spring. The compression spring is fixed.

Preferably, the number of the compression springs is two, and the compression springs are respectively arranged at two ends of the lower sliding block. The two ends of the lower sliding block are uniformly stressed, and the whole mechanism runs more stably.

Preferably, an arc-shaped groove is formed in one end, far away from the upper sliding block, of the lower sliding block and used for containing the supporting ball.

Preferably, a small ball layer is arranged between the arc-shaped groove and the support ball, and the small ball layer comprises a plurality of small balls. The friction force between the arc-shaped groove and the supporting ball is reduced, and the moving resistance of the supported object in the horizontal plane is reduced.

Preferably, still including supporting the ball apron, support be provided with on the ball apron with support the third opening of ball adaptation, support the ball apron with the connection can be dismantled to the lower sliding block. The support ball cover plate is fixed on the lower sliding block through a cover plate screw.

Preferably, the support balls and the support ball cover plate are in clearance fit. The small ball layer and the supporting balls can freely rotate, and the blocking is avoided.

Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows: the lifting ball universal wheel comprises a fixed base plate, wherein a shell is buckled on the fixed base plate, an upper sliding block and a lower sliding block are arranged in the shell, the upper sliding block is abutted against the fixed base plate, a compression spring is arranged between the lower sliding block and the shell, the contact surface of the upper sliding block and the lower sliding block is a sliding inclined surface, a supporting ball is arranged on one side of the lower sliding block, which is far away from the upper sliding block, and a first opening for installing the supporting ball is arranged on the shell; still include adjusting screw, adjusting screw with slider-up threaded connection, be provided with on the casing and supply adjusting screw passes the second opening. The adjusting screw adjusts the horizontal position of the upper sliding block, further adjusts the height of the lower sliding block, and finally achieves the effect of adjusting the height of the supporting ball, so that the labor intensity is reduced, and the device is suitable for the accurate installation and positioning of the precision equipment which is limited in operation space, does not have hoisting conditions and needs to be adjusted and leveled in a horizontal plane.

Drawings

FIG. 1 is a prior art block diagram;

fig. 2 is a cross-sectional view of the present invention.

Description of the symbols of the main elements: 1. fixing the bottom plate; 2. a limit baffle; 3. adjusting the screw; 4. an upper slide block; 5. a supported object; 6. a housing; 7. a spring; 8. a lower slide block; 9. a cover plate screw; 10. supporting the ball cover plate; 11. supporting the balls; 12. a small ball layer.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings. In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1: referring to fig. 2, the lifting ball universal wheel of the present embodiment includes a fixed base plate 1, a housing 6 is fastened on the fixed base plate 1, an upper slider 4 and a lower slider 8 are disposed in the housing 6, the upper slider 4 abuts against the fixed base plate 1, a compression spring 7 is disposed between the lower slider 8 and the housing 6, a contact surface between the upper slider 4 and the lower slider 8 is a sliding inclined surface, a supporting ball 11 is disposed on one side of the lower slider 8 away from the upper slider 4, and a first opening for mounting the supporting ball 11 is disposed on the housing 6; still include adjusting screw 3, adjusting screw 3 and last slider 4 threaded connection are provided with the second opening that supplies adjusting screw 3 to pass on the casing 6. The adjusting screw 3 adjusts the horizontal position of the upper sliding block 4, further adjusts the height of the lower sliding block 8, finally achieves the effect of adjusting the height of the supporting ball 11, not only reduces the labor intensity, but also is suitable for the accurate installation and positioning of the precision equipment which is limited in operation space, does not have hoisting conditions and needs to move, adjust and level in a horizontal plane.

Example 2: the second opening of this embodiment is provided with a limit baffle 2, and the limit baffle 2 is used for limiting the axial movement distance of the adjusting screw 3. So that the adjusting screw 3 can only rotate and cannot move in the axial direction. The limit baffle 2 is of a detachable structure; the upper slide block 4 of this embodiment is a hollow structure, and one end of the adjusting screw 3 penetrates through one side wall of the upper slide block 4 and enters the hollow structure. The lower slide block 8 of the present embodiment is provided with a spring 7 hole, and the spring 7 hole is used for accommodating the compression spring 7. The compression spring 7 is fixed. The number of the compression springs 7 of this embodiment is two, and the compression springs are respectively provided at both ends of the lower slider 8. The two ends of the lower sliding block 8 are evenly stressed, and the whole mechanism runs more stably.

Example 3: the one end that the lower slider 8 of this embodiment kept away from top shoe 4 is provided with the arc recess, and the arc recess is used for the holding to support ball 11. A small ball layer 12 is arranged between the arc-shaped groove and the supporting ball 11, and the small ball layer 12 comprises a plurality of small balls. The friction force between the arc-shaped groove and the supporting ball 11 is reduced, and the moving resistance of the supported object 5 in the horizontal plane is reduced. The present embodiment further includes a supporting ball cover plate 10, a third opening adapted to the supporting ball 11 is disposed on the supporting ball cover plate 10, and the supporting ball cover plate 10 is detachably connected to the lower slider 8. The supporting ball cover plate 10 is fixed on the lower slide block 8 through a cover plate screw 9. The supporting balls 11 and the supporting ball cover plate 10 of the present embodiment are in clearance fit. The small ball layer 12 and the supporting ball 11 can rotate freely, and the locking is avoided.

The inclined angle of the wedge type sliding block adjusting mechanism consisting of the upper sliding block 4 and the lower sliding block 8 can be designed within a certain range according to the requirements of lifting adjusting stroke size, positioning precision, adjusting screw 3 torque and the like, and the requirements of moving, lifting and positioning of supported objects 5 with different sizes and weights are met; the diameters of the small ball layer 12, the supporting balls 11 and the concave spherical surface of the lower sliding block 8 can be designed according to the weight of the supported object 5; the lifting ball universal wheel can be combined and used according to a certain form by more than 3 according to the size and the weight of a supported object 5, reduces the labor intensity of use, and is generally suitable for the accurate installation and positioning of precision equipment which is limited in operation space, does not have hoisting conditions and needs to move, adjust and level in a horizontal plane.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included therein.