CN217476993U

CN217476993U - Multi-position directional universal wheel device

Info

Publication number: CN217476993U
Application number: CN202220425219.6U
Authority: CN
Inventors: 王蓬勃; 李伟; 吴国兔; 牛明强
Original assignee: SUZHOU BOTIAN AUTOMATION TECHNOLOGY CO LTD
Current assignee: SUZHOU BOTIAN AUTOMATION TECHNOLOGY CO LTD
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-09-23
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a directional universal wheel device of many bits, include: the roller is rotatably arranged on the retainer, and the retainer is rotatably arranged on the carrier plate; the rotating disc is elliptical and is arranged on the retainer, and the axis of the rotating disc is collinear with the rotation center line of the retainer; elasticity compresses tightly the subassembly, elasticity compresses tightly the subassembly and installs on the support plate, elasticity compresses tightly the working end elasticity butt of subassembly on the arcwall face of rolling disc, compresses tightly the subassembly drive rolling disc through elasticity and rotates, and the rolling disc passes through the holder and drives the gyro wheel swing with returning the positive direction. The utility model discloses a set up oval-shaped rolling disc and elasticity and compress tightly the subassembly, both cooperations are used and can be when the gyro wheel is lifted up to provide a suitable restrictive force to it, guarantee that the gyro wheel still can obtain one and be enough to return positive power after receiving external force interference for the gyro wheel still can keep unanimous with the direction of travel after falling to ground once more.

Description

Multi-position directional universal wheel device

Technical Field

The utility model relates to a technical field of universal wheel, concretely relates to directional universal wheel device of many positions.

Background

The universal wheel is a bracket which is arranged on the caster wheel and can horizontally rotate for 360 degrees in a dynamic load or static load, mainly plays a role in assisting steering and stabilizing support, and is widely applied to various industries and fields such as mines, mechanical equipment, electronic equipment, medical equipment, engineering decoration, textile, printing and dyeing, furniture, logistics equipment, storage, turnover vehicles, cases, cabinets, equipment, machinery and electronics, dust-free workshops, production lines, large supermarkets and the like. However, when the universal wheel in the prior art is suspended, the universal wheel is not constrained by force, the wheel carrier of the universal wheel can swing randomly in a range of 360 degrees around the rotating shaft, if other objects are at the near end of the universal wheel, collision can occur, and damage can be caused to the universal wheel or other objects, most importantly, when the universal wheel is put down, because the deflection angle of the universal wheel is uncertain, when the corresponding vehicle moves continuously, the direction of the universal wheel is difficult to keep consistent with the traveling direction of the vehicle, so that the traveling direction of the universal wheel needs to be corrected again in the moving process of the vehicle, the rolling direction of the universal wheel is consistent with the traveling direction of the vehicle, and a large resistance exists in the process, and the jerk feeling obviously causes poor smoothness in the using process, especially after long-time use, the jerk and blockage feeling are stronger due to the reasons of abrasion and the like, and the safety and stability of the use of the vehicle are seriously affected, therefore, there is a need for improvements and innovations to the existing universal wheel structure.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a directional universal wheel device of multiposition.

In order to solve the technical problem, the utility model provides a directional universal wheel device of many bits, include:

the roller is rotationally arranged on the retainer, the retainer is rotationally arranged on the carrier plate, and the rotation center line of the roller is vertical to that of the retainer;

the rotating disc is oval, the rotating disc is installed on the retainer, and the axis of the rotating disc is collinear with the rotation center line of the retainer;

elasticity compresses tightly the subassembly, elasticity compresses tightly the subassembly and installs on the support plate, elasticity compresses tightly the working end elasticity butt of subassembly on the arcwall face of rolling disc, compresses tightly the subassembly drive rolling disc through elasticity and rotates, and the rolling disc passes through the holder and drives the gyro wheel swing with returning the positive direction.

As a further improvement, be equipped with on the holder and be used for installing its pivot on the support plate with its rotation, the axis of pivot is perpendicular with the rotation center line of gyro wheel, the pivot through the bearing group rotate install with on the fixed mount pad of support plate, the rolling disc is installed the free end of pivot.

As a further improvement, the bearing group is in including equal coaxial suit the outside deep groove ball bearing of pivot and thrust ball bearing, and be equipped with the bearing spacer between deep groove ball bearing and the thrust ball bearing, thrust ball bearing is located between holder and the deep groove ball bearing.

As a further improvement of the utility model, one of them seat circle axial butt of thrust ball bearing is in on the bearing spacer, the shaft shoulder and the first circlip that another seat circle axial butt of thrust ball bearing set up in the pivot simultaneously circle, first circlip is installed on the mount pad.

As a further improvement, the axial butt is in the shaft shoulder and the second circlip that set up in the pivot respectively at the both ends of deep groove ball bearing's inner circle, the second circlip is installed in the pivot, the axial butt is in respectively at the both ends of deep groove ball bearing's outer lane the protruding edge of location that sets up is last on bearing spacer and the mount pad.

As a further improvement, the middle part of rolling disc is equipped with rather than the through-hole with the axle center, the rolling disc is in through the coaxial suit of this through-hole the free end of pivot, and the rolling disc is located the outside of mount pad, the tip of pivot be equipped with the tight screw and the gasket of location in the pivot are pressed from both sides to the rolling disc, the screw runs through the gasket is in through threaded connection the tip of pivot, the gasket is pressed from both sides by the screw and is pressed from both sides on the corresponding terminal surface of rolling disc.

As the utility model discloses a further improvement, elasticity compresses tightly the subassembly and includes positioning seat, ball and spring, the positioning seat is installed on the mount pad, the rolling disc is located in the inside holding chamber that sets up of positioning seat, and the tip of positioning seat is equipped with and is used for injecting the oil cup of fluid into to its holding intracavity, spring and ball are installed on the positioning seat, the spring is compressed and its one end butt is on the ball, the ball butt is in on the arcwall face of rolling disc.

As a further improvement of the present invention, the arc-shaped surface of the rotating disk is provided with two symmetrical balls, and the connecting straight line between the centers of the two balls and the axis of the rotating disk intersect perpendicularly.

As a further improvement, ball and spring are all installed in cylindric installation section of thick bamboo, the installation section of thick bamboo is twisted through the external screw thread and is in on the positioning seat, the inside through-hole of installation section of thick bamboo with the holding chamber intercommunication of positioning seat, and the axis of installation section of thick bamboo intersects with the axis of pivot is perpendicular, the coaxial setting of spring is in the inside of installation section of thick bamboo, the spring is compressed and its one end butt is on the jackscrew, other end butt is in on the ball, the ball is positioned in the inside through-hole of installation section of thick bamboo, and the ball part stretches out installation section of thick bamboo and butt on the arcwall face of rolling disc, the jackscrew is twisted on the installation section of thick bamboo through the screw thread is coaxial soon.

As a further improvement of the utility model, the positioning seat is in through its tip butt on the tip of mount pad, the cover is equipped with the link on the installation section of thick bamboo, there is the nut outside of installation section of thick bamboo through threaded connection, the nut will the link presss from both sides tight location in on the positioning seat, the link still through the bolt with support plate fixed connection.

The utility model has the advantages that:

the utility model relates to a directional universal wheel device of multiposition, firstly, the utility model discloses a set up oval-shaped rolling disc and elasticity and compress tightly the subassembly, both cooperate the use and can provide a suitable constraint force to the gyro wheel when being lifted up, guarantee that the gyro wheel can still obtain a sufficient power of returning to the positive after receiving external force interference, make the gyro wheel still can keep unanimous with the direction of advance after falling to the ground once more, and then when the gyro wheel is used once more, its ride comfort is better, can effectively reduce the resistance of advancing; secondly, the utility model can adjust the position of the jackscrew, further adjust the pressure applied to the ball by the spring, so that the rotary force applied to the rotary disc can be adjusted to meet the stress requirements under different use environments, and the flexibility is better; furthermore, the utility model discloses a rolling disc passes through the fix with screw at the tip of pivot, and the angular position of the relative gyro wheel of rolling disc can be adjusted in a flexible way for the positive angular position of roller wheel return can be adjusted as required, with the use scene of reply difference.

Drawings

FIG. 1 is a perspective view of a multi-directional universal wheel apparatus;

FIG. 2 is a front view of a multi-position directional caster assembly;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged schematic view of FIG. 3 at B;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3;

FIG. 6 is a schematic perspective view of the rotary disk attached to the holder;

the reference numbers in the figures illustrate:

10. a carrier plate; 20. a roller; 21. a holder; 22. a rotating shaft; 23. a second circlip; 24. a mounting seat; 25. positioning the convex edge; 26. a first circlip; 27. a deep groove ball bearing; 28. a thrust ball bearing; 29. a bearing spacer; 30. positioning seats; 31. an accommodating cavity; 32. an oil cup; 33. rotating the disc; 34. a screw; 35. a gasket; 36. mounting the cylinder; 37. carrying out top thread; 38. a spring; 39. a ball bearing; 40. a connecting frame; 41. a nut; 42. and (4) bolts.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1-6, an embodiment of a multi-position directional universal wheel apparatus of the present invention;

a multi-position directional castor assembly comprising:

the roller 20 is rotatably arranged on a retainer 21, the retainer 21 is rotatably arranged on the carrier plate 10, and the rotation center line of the roller 20 is perpendicular to the rotation center line of the retainer 21; the support plate 10 can be the partial structure of multiple transportation platforms such as handcart, AGV, also can will through support plate 10 the utility model discloses an universal wheel structrual installation is on multiple transportation platforms such as handcart, AGV.

The rotating disc 33 is oval, the rotating disc 33 is installed on the retainer 21, and the axis of the rotating disc 33 is collinear with the rotation center line of the retainer 21;

the elastic pressing component is arranged on the carrier plate 10, the working end of the elastic pressing component is elastically abutted against the arc-shaped surface of the rotating disc 33, the rotating disc 33 is driven to rotate through the elastic pressing component, and the rotating disc 33 drives the roller 20 to swing through the retainer 21 so as to return to the positive direction; the utility model discloses a set up oval-shaped rolling disc 33 and elasticity and compress tightly the subassembly, both cooperate to use and can provide a suitable restrictive force to it when gyro wheel 20 is lifted up, guarantee that gyro wheel 20 still can obtain one and be enough to go back positive power after receiving external force interference for gyro wheel 20 still can keep unanimous with the direction of travel after falling to the ground once more, and then when gyro wheel 20 uses once more, its ride comfort is better, can effectively reduce the resistance of marcing.

In a specific embodiment of the present invention, referring to fig. 1-3, a rotating shaft 22 is disposed on the holder 21 for rotatably mounting the holder on the carrier plate 10, an axis of the rotating shaft 22 is perpendicular to a rotation center line of the roller 20, the rotating shaft 22 is rotatably mounted on a mounting seat 24 fixed to the carrier plate 10 through a bearing set, the mounting seat 24 is usually fixed to the carrier plate 10 in a detachable manner, and the rotating disc 33 is mounted at a free end of the rotating shaft 22.

In a specific embodiment of the present invention, referring to fig. 4, the bearing assembly includes a deep groove ball bearing 27 and a thrust ball bearing 28, both of which are coaxially sleeved outside the rotating shaft 22, and a bearing spacer 29 is disposed between the deep groove ball bearing 27 and the thrust ball bearing 28, and the thrust ball bearing 28 is located between the retainer 21 and the deep groove ball bearing 27; the deep groove ball bearing 27 is used for bearing the radial force of the rotating shaft 22, and the thrust ball bearing 28 is used for bearing the axial force of the rotating shaft 22.

In a specific embodiment of the present invention, referring to fig. 4, one race of the thrust ball bearing 28 axially abuts against the bearing spacer 29, the other race of the thrust ball bearing 28 axially abuts against a shaft shoulder provided on the rotating shaft 22 and the first elastic retaining ring 26 at the same time, and the first elastic retaining ring 26 is mounted on the mounting seat 24; two ends of an inner ring of the deep groove ball bearing 27 axially abut against a shaft shoulder and a second elastic check ring 23 arranged on the rotating shaft 22 respectively, the first elastic check ring 26 and the second elastic check ring 23 can be detached, the second elastic check ring 23 is installed on the rotating shaft 22, and two ends of an outer ring of the deep groove ball bearing 27 axially abut against positioning convex edges 25 arranged on the bearing spacer 29 and the installation seat 24 respectively.

In a specific embodiment of the utility model, as shown with reference to fig. 3-6, the middle part of rolling disc 33 is equipped with the through-hole rather than coaxial axle center, rolling disc 33 is in through the coaxial suit of this through-hole the free end of pivot 22, and rolling disc 33 is located the outside of mount pad 24, the tip of pivot 22 be equipped with rolling disc 33 presss from both sides tight screw 34 and the gasket 35 of location in pivot 22, screw 34 runs through gasket 35 and through threaded connection in the tip of pivot 22, gasket 35 is pressed from both sides tightly by screw 34 on the corresponding terminal surface of rolling disc 33. The rotating disc 33 is fixed at the end of the rotating shaft 22 through the screw 34, and the angular position of the rotating disc 33 relative to the roller 20 can be flexibly adjusted, so that the return angular position of the roller 20 can be adjusted as required to cope with different use scenes.

In an embodiment of the present invention, referring to fig. 4-5, the elastic pressing assembly includes a positioning seat 30, a ball 39 and a spring 38, the ball 39 is a generally spherical steel ball, the positioning seat 30 is mounted on the mounting seat 24, the rotating disc 33 is located in a containing cavity 31 provided inside the positioning seat 30, an end of the positioning seat 30 is provided with an oil cup 32 for injecting oil into the containing cavity 31, the oil is used to lubricate the positioning seat 30 and elements in the mounting seat 24, the spring 38 and the ball 39 are mounted on the positioning seat 30, the spring 38 is compressed and one end of the spring abuts against the ball 39, the ball 39 abuts against the arc surface of the rotating disc 33, the elastic force of the spring 38 is applied to the rotating disc 33 through the ball 39, and then a restraining force can be provided for the rotating disc 33, so that the roller 20 is suspended, the rotation disc 33 is rotated by the constraining force applied to it, and the roller 20 is driven to return to the right by the rotation disc 33.

In a specific embodiment of the present invention, referring to fig. 4-5, two symmetrically disposed balls 39 are abutted on the arc surface of the rotating disc 33, and a connecting straight line between the centers of the two balls 39 perpendicularly intersects with the axis of the rotating disc 33; the ball 39 and the spring 38 are both installed in a cylindrical installation barrel 36, the installation barrel 36 is screwed on the positioning seat 30 through external threads, an internal through hole of the installation barrel 36 is communicated with the accommodating cavity 31 of the positioning seat 30, the axis of the installation barrel 36 is perpendicular to the axis of the rotating shaft 22, the spring 38 is coaxially arranged inside the installation barrel 36, the spring 38 is compressed, one end of the spring is abutted to the jackscrew 37, the other end of the spring is abutted to the ball 39, the ball 39 is positioned in the internal through hole of the installation barrel 36, the ball 39 can axially slide along the internal through hole of the installation barrel 36, part of the ball 39 extends out of the installation barrel 36 and is abutted to the arc-shaped surface of the rotating disc 33, and the jackscrew 37 is coaxially screwed on the installation barrel 36 through threads. Through adjusting the position of jackscrew 37, and then can adjust spring 38 and exert pressure to ball 39 for the gyration power size that rolling disc 33 received can be adjusted, with the atress demand under the different service environment of satisfying, the flexibility is better.

The utility model discloses in the use, when gyro wheel 20 is unsettled, spring 38 can pass through ball 39 extrusion rolling disc 33, make rolling disc 33 rotate, make the coincidence of the minor axis of connecting straight line between two balls 39 and rolling disc 33 as far as possible, and then form constraining force to rolling disc 33, rolling disc 33 and ball 39's position state is as shown in figure 5, rolling disc 33 returns through pivot 22 and holder 21 in order to drive gyro wheel 20 swing, avoid appearing gyro wheel 20 unsettled back, gyro wheel 20 can revolute pivot 22 at 360 within ranges swing at random, influence the use.

In a specific embodiment of the present invention, referring to fig. 1 to 4, the positioning seat 30 abuts against the end of the mounting seat 24 through the end thereof, the mounting tube 36 is sleeved with a connecting frame 40, the outside of the mounting tube 36 is connected with a nut 41 through a thread, the nut 41 clamps and positions the connecting frame 40 on the positioning seat 30, and the connecting frame 40 is further fixedly connected with the support plate 10 through a bolt 42.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. A multi-position directional castor assembly, comprising:

2. A multi-position-orientation universal wheel device according to claim 1, wherein the holder is provided with a shaft for rotatably mounting the holder on the carrier plate, the axis of the shaft is perpendicular to the rotation center line of the roller, the shaft is rotatably mounted on a mounting seat fixed to the carrier plate through a bearing set, and the rotating disc is mounted on the free end of the shaft.

3. The multi-position directional universal wheel device as claimed in claim 2, wherein the bearing set comprises a deep groove ball bearing and a thrust ball bearing which are coaxially sleeved outside the rotating shaft, and a bearing spacer is arranged between the deep groove ball bearing and the thrust ball bearing, and the thrust ball bearing is arranged between the retainer and the deep groove ball bearing.

4. A multi-position orientation castor assembly according to claim 3 wherein one of said thrust ball bearings races axially abuts said bearing spacer and the other of said thrust ball bearings races axially abuts both a shoulder provided on the shaft and a first circlip, said first circlip being mounted on said mounting block.

5. A multi-position-orientation universal wheel device as claimed in claim 3, wherein both ends of the inner ring of the deep groove ball bearing axially abut against a shaft shoulder and a second elastic retainer ring respectively arranged on the rotating shaft, the second elastic retainer ring is arranged on the rotating shaft, and both ends of the outer ring of the deep groove ball bearing axially abut against positioning flanges respectively arranged on the bearing spacer and the mounting seat.

6. A multi-position-orientation universal wheel device according to claim 2, wherein the middle of the rotary disk is provided with a through hole coaxial with the rotary disk, the rotary disk is coaxially sleeved on the free end of the rotary shaft through the through hole, the rotary disk is positioned outside the mounting seat, the end part of the rotary shaft is provided with a screw and a gasket for clamping and positioning the rotary disk on the rotary shaft, the screw penetrates through the gasket and is connected to the end part of the rotary shaft through threads, and the gasket is clamped on the corresponding end surface of the rotary disk by the screw.

7. The multi-position oriented universal wheel unit according to claim 6, wherein said resilient hold down assembly includes a positioning socket mounted on said mounting block, said rotatable disk being located in a receiving cavity provided within said positioning socket, and an end of said positioning socket having an oil cup for injecting oil into said receiving cavity thereof, said spring and said ball being mounted on said positioning socket, said spring being compressed and having one end abutting said ball, said ball abutting said arcuate surface of said rotatable disk.

8. A multi-position orientation castor assembly according to claim 7 wherein said rotatable disk has two symmetrically disposed balls abutting the arcuate surface thereof, the line joining the centers of the two balls being perpendicular to the axis of said rotatable disk.

9. The multi-position directional universal wheel device according to claim 7, wherein the ball and the spring are both mounted in a cylindrical mounting tube, the mounting tube is screwed on the positioning seat through external threads, the inner through hole of the mounting tube is communicated with the accommodating cavity of the positioning seat, the axis of the mounting tube is perpendicular to the axis of the rotating shaft, the spring is coaxially disposed inside the mounting tube, the spring is compressed, one end of the spring abuts against the jackscrew, the other end of the spring abuts against the ball, the ball is positioned in the inner through hole of the mounting tube, the ball partially extends out of the mounting tube and abuts against the arc-shaped surface of the rotating disk, and the jackscrew is screwed on the mounting tube coaxially through threads.

10. The multi-position directional universal wheel device according to claim 9, wherein the positioning seat abuts against an end of the mounting seat through an end of the positioning seat, the mounting tube is sleeved with a connecting frame, a nut is connected to an outer portion of the mounting tube through a screw thread, the nut clamps the connecting frame to the positioning seat, and the connecting frame is further fixedly connected to the carrier plate through a bolt.