CN219883620U

CN219883620U - Unidirectional driving castor

Info

Publication number: CN219883620U
Application number: CN202321385560.4U
Authority: CN
Inventors: 岳桂艳
Original assignee: Cypriott Tianjin Industrial Technology Co ltd
Current assignee: Cypriott Tianjin Industrial Technology Co ltd
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2023-10-24
Anticipated expiration: 2033-06-02

Abstract

The utility model discloses a unidirectional driving caster, which relates to the technical field of casters and comprises a main body device, wherein the main body device comprises an assembly unit, a bearing unit and an auxiliary unit, the assembly unit comprises a roller and an assembly part, the bearing unit comprises a unidirectional bearing, a ball bearing, a needle bearing, a regular octagonal inner shell, a built-in shaft, a regular octagonal shell and a shell, and the auxiliary unit comprises a shaft core, a limiting ring, a unidirectional bearing and a clamp spring. The utility model effectively converts axial force into rolling or sliding force, reduces load, prevents axial load from being damaged, effectively protects the mechanism from moving, greatly improves the reliability of the mechanism, has small running resistance, is firm and durable, uses the ball bearings at two ends, can increase the stability of the belt pulley during rotation, uses fewer parts than the traditional belt pulley, is simpler and more efficient, is easier for mass production, and prevents the shaft core, the needle roller bearing and the ball bearing from upwards channeling through the limiting ring, thereby improving the stability of the structure.

Description

Unidirectional driving castor

Technical Field

The utility model relates to the technical field of casters, in particular to a unidirectional driving caster.

Background

The caster is widely applied, the casters are almost separated from the casters in various industries, the casters can be arranged at the bottoms of various objects so as to move, for example, the bottoms of various objects such as sickbeds, equipment, luggage cases, carts and cabinets can be arranged, but the structure of the existing casters is more traditional at present, in the use process, especially on uneven planes, the arranged objects can jump at uneven positions due to the fact that the good shockproof design is not available, the structure of the arranged objects is adversely affected, and the objects to be carried by the arranged objects can be lost due to falling probability, so that the casters are quite inconvenient.

In the prior art, a Chinese patent with a publication number of CN112389131A is proposed to solve the technical problems, and the technical scheme disclosed in the patent document is as follows: a shockproof gravity caster with shockproof function. The rolling device comprises a flat plate, a fixing frame and a wheel body, wherein two rolling bearings I are arranged on the wheel body, the rolling bearings I are respectively arranged on the left outer side surface and the right outer side surface of the wheel body, rolling rods are arranged on the rolling bearings I and are communicated with the wheel body, two ends of each rolling rod are respectively connected with the two rolling bearings I, the flat plate and the rolling bearings I are connected with the fixing frame, a plurality of rollers are arranged on the outer side surface of the wheel body, rolling bearings II are arranged on the rollers, and springs I are arranged on the rolling bearings II and are connected with the rolling rods. The beneficial effects of the utility model are as follows: the first spring, the second rolling bearing and the roller can achieve the purpose of automatically playing a role in shockproof; the compression spring plays a role in bearing gravity and buffering; the generator, the single chip microcomputer I, the loudspeaker, the spring I and the spring II reach the state of prompting whether the generator, the single chip microcomputer I, the loudspeaker, the spring I and the spring II are in working state or not; the foot pedal, the brake shoe and the motor play a role in braking.

Although the device can enable the first spring, the second rolling bearing and the roller to achieve the purpose of automatically playing a role in preventing vibration, different speeds cannot be achieved in the process of reciprocating the caster, so that the practicability of the device is to be improved.

Disclosure of Invention

The present utility model is directed to providing a unidirectional driving caster to solve the above-mentioned problems in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the unidirectional driving castor comprises a main body device, wherein the main body device comprises an assembling unit, a bearing unit and an auxiliary unit.

The assembly unit comprises a roller and an assembly part, the bearing unit comprises a one-way bearing, a ball bearing, a needle bearing, a regular octagonal inner shell, a built-in shaft, a regular octagonal shell and a shell, and the auxiliary unit comprises a shaft core, a limiting ring, a one-way bearing and a clamp spring.

The needle roller bearing, the ball bearing, the clamp spring, the one-way bearing, the idler wheel and the limiting ring are sequentially arranged from left to right, and the shaft core is positioned in the idler wheel.

The technical scheme of the utility model is further improved as follows: the outer wall of the bottom end of the needle bearing is fixedly connected with the inner wall of the built-in shaft, the outer wall of the built-in shaft is clamped with the inner wall of the regular octagonal inner shell, and the outer wall of the regular octagonal inner shell is clamped with the inner wall of the regular octagonal outer shell.

The technical scheme of the utility model is further improved as follows: the outer wall of the regular octagonal casing is fixedly connected with the inner wall of the casing.

The technical scheme of the utility model is further improved as follows: the outer wall of one end of the needle roller bearing is rotationally connected with the inner wall of the ball bearing, and one side, away from the needle roller bearing, of the ball bearing is movably connected with one side of the clamp spring.

The technical scheme of the utility model is further improved as follows: one side of the clamp spring, which is far away from the ball bearing, is movably connected with one side of the one-way bearing, and the outer wall of the one-way bearing is rotatably connected with the inner wall of the roller.

By adopting the technical scheme, the ball bearings in the scheme have small running resistance, are firm and durable, can be used at two ends, can increase the stability of the belt pulley during rotation, and are less than the traditional parts used by the belt pulley, more simple and efficient, and are easier for mass production.

The technical scheme of the utility model is further improved as follows: the inner wall of gyro wheel with the outer wall fixed connection of axle core, the spacing ring is located the gyro wheel is kept away from one side of jump ring.

By adopting the technical scheme, the axial core, the needle roller bearing and the ball bearing are prevented from upwards channeling through the limiting ring in the scheme, so that the stability of the structure is improved.

The technical scheme of the utility model is further improved as follows: the outer wall of gyro wheel is provided with the assembly part, the mounting groove has been seted up to the bottom of assembly part.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. the unidirectional driving castor provided by the utility model effectively converts axial force into rolling or sliding force, reduces load, prevents the axial load from being damaged, effectively protects the movement of the mechanism and greatly improves the reliability of the mechanism.

2. The unidirectional driving caster provided by the utility model has the advantages that the running resistance of the ball bearings is small, the unidirectional driving caster is firm and durable, the ball bearings are used at the two ends, the stability of the belt pulley during rotation can be increased, and compared with the prior art, the unidirectional driving caster has fewer parts and components, is simpler and more efficient, and is easier for mass production.

3. The unidirectional driving castor provided by the utility model has the advantages that the axial core, the needle roller bearing and the ball bearing are prevented from upwards channeling through the limiting ring, the structural stability is improved, the needle roller bearing and the ball bearing are both provided with independent shells, the diameter of the needle roller bearing is smaller than that of the shells, the installation and the disassembly are convenient, the inner wall of the needle roller bearing is designed into a regular octagonal shape, and the needle roller bearing can be well engaged to prevent slipping during operation.

Drawings

FIG. 1 is a schematic view of a main device structure of the present utility model;

FIG. 2 is a schematic view of a needle bearing according to the present utility model;

FIG. 3 is a schematic view showing the roller assembly structure of the present utility model;

fig. 4 is a schematic diagram of the assembly structure of the present utility model.

In the figure: 1. a main body device; 2. a shaft core; 3. a roller; 4. a one-way bearing; 5. clamping springs; 6. a ball bearing; 7. needle roller bearings; 8. a regular octagonal inner shell; 9. a built-in shaft; 10. a regular octagonal casing; 11. a casing; 12. a limiting ring; 13. a fitting; 14. and a mounting groove.

Detailed Description

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1 to 4, the present utility model provides a unidirectional drive caster comprising a main body device 1, the main body device 1 comprising an assembly unit, a bearing unit and an auxiliary unit.

The assembly unit comprises a roller 3 and an assembly part 13, the bearing unit comprises a one-way bearing 4, a ball bearing 6, a needle bearing 7, a regular octagonal inner shell 8, a built-in shaft 9, a regular octagonal casing 10 and a casing 11, and the auxiliary unit comprises a shaft core 2, a limiting ring 12, the one-way bearing 4 and a clamp spring 5.

The needle roller bearing 7, the ball bearing 6, the clamp spring 5, the one-way bearing 4, the roller 3 and the limiting ring 12 are sequentially arranged from left to right, and the shaft core 2 is positioned in the roller 3.

The upper and lower ends of the shaft core 2 are respectively provided with two identical ball bearings 6, and the outer side of the needle bearing 7 is provided with a needle bearing sleeve. According to the unidirectional wheel, the upper end of the shell is fixedly connected with the limiting ring 12, and the axial core 2, the needle bearing 7 and the ball bearing 6 can be prevented from upwards moving through the limiting ring 12, so that the stability of the structure is improved.

The bottom outer wall of bearing 7 and the inner wall fixed connection of built-in axle 9, the outer wall of built-in axle 9 and the inner wall joint of regular octagonal inner shell 8, the outer wall of regular octagonal inner shell 8 and the inner wall joint of regular octagonal cover shell 10, bearing 7 and ball bearing 6 all are provided with independent shell, and the diameter is less than the diameter of shell, be convenient for install and dismantle, bearing 7 inner wall all designs to regular octagonal shape, slip when can better interlock prevent the operation, make bearing 7 firm oil leakage not simultaneously, ball bearing 6 running resistance is little sturdy and durable simultaneously, ball bearing 6 is used at both ends, stability when the belt pulley rotates can be increased, the spare part that the belt pulley used is less than even traditional, more simple and more efficient, more easy batch production.

The outer wall of the regular octagonal casing 10 is fixedly connected with the inner wall of the casing 11.

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides the following technical solutions: preferably, the outer wall of one end of the needle bearing 7 is rotationally connected with the inner wall of the ball bearing 6, and one side of the ball bearing 6 away from the needle bearing 7 is movably connected with one side of the snap spring 5.

One side of the snap spring 5 far away from the ball bearing 6 is movably connected with one side of the one-way bearing 4, and the outer wall of the one-way bearing 4 is rotatably connected with the inner wall of the roller 3.

The inner wall of gyro wheel 3 and the outer wall fixed connection of axle core 2, spacing ring 12 are located the gyro wheel 3 and keep away from one side of jump ring 5.

The outer wall of the roller 3 is provided with an assembly part 13, and the bottom of the assembly part 13 is provided with a mounting groove 14.

The working principle of the unidirectional driving caster is specifically described below.

In use, as shown in figures 1 to 4, the body means 1 is fitted into the mounting groove 14 of the fitting 13, and when the roller 3 is rotated, the unidirectional bearing 4 is placed in the roller 3, so that the characteristics of the unidirectional bearing 4 can be fully utilized, and the roller 3 can achieve different speeds in the process of reciprocating.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises the element, the utility model being generally described above in detail, but may be modified or improved upon by the present utility model as will be apparent to those of ordinary skill in the art. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims

1. Unidirectional drive truckle, including main part device (1), its characterized in that: the main body device (1) comprises an assembly unit, a bearing unit and an auxiliary unit;

the assembly unit comprises a roller (3) and an assembly part (13), the bearing unit comprises a one-way bearing (4), a ball bearing (6), a needle bearing (7), a regular octagonal inner shell (8), a built-in shaft (9), a regular octagonal casing (10) and a casing (11), and the auxiliary unit comprises a shaft core (2), a limiting ring (12), the one-way bearing (4) and a clamp spring (5);

the rolling needle bearing is characterized in that the needle bearing (7), the ball bearing (6), the clamp spring (5), the one-way bearing (4), the roller (3) and the limiting ring (12) are sequentially arranged from left to right, and the shaft core (2) is located inside the roller (3).

2. A unidirectional drive castor as claimed in claim 1, wherein: the outer wall of the bottom end of the needle bearing (7) is fixedly connected with the inner wall of the built-in shaft (9), the outer wall of the built-in shaft (9) is clamped with the inner wall of the regular octagonal inner shell (8), and the outer wall of the regular octagonal inner shell (8) is clamped with the inner wall of the regular octagonal outer shell (10).

3. A unidirectional drive castor as claimed in claim 1, wherein: the outer wall of the regular octagonal casing (10) is fixedly connected with the inner wall of the casing (11).

4. A unidirectional drive castor as claimed in claim 1, wherein: the outer wall of one end of the needle bearing (7) is rotationally connected with the inner wall of the ball bearing (6), and one side, far away from the needle bearing (7), of the ball bearing (6) is movably connected with one side of the clamp spring (5).

5. A unidirectional drive castor as claimed in claim 1, wherein: one side of the clamp spring (5) away from the ball bearing (6) is movably connected with one side of the one-way bearing (4), and the outer wall of the one-way bearing (4) is rotatably connected with the inner wall of the roller (3).

6. A unidirectional drive castor as claimed in claim 1, wherein: the inner wall of the roller (3) is fixedly connected with the outer wall of the shaft core (2), and the limiting ring (12) is positioned on one side, far away from the clamping spring (5), of the roller (3).

7. A unidirectional drive castor as claimed in claim 1, wherein: the outer wall of the roller (3) is provided with an assembly part (13), and the bottom of the assembly part (13) is provided with a mounting groove (14).