Omni-directional caster with oil injection nozzle

Abstract

The utility model provides a kind of all-directional caster with oil filler, it aims at solving the problem of greater difficulty of oiling maintenance in the structure of existing caster, it includes bottom plate, movable support and gyro wheel, ball mechanism is equipped between the bottom plate and movable support, it is characterized in that, oil filler is equipped on the movable support, the oil filler is communicated with ball mechanism to be used to fill lubricating oil into ball mechanism, the bottom of the bottom plate is equipped with first bead disc, the top of the movable support is equipped with second bead disc, steel ball is loaded between the first bead disc and second bead disc to constitute the ball mechanism, oil inlet is equipped on the second bead disc and is communicated internally and externally, the oil filler is installed on the oil inlet.

Description

Technical Field

[0001] This utility model relates to industrial casters, specifically to an omnidirectional caster with an oil filler nozzle. Background Technology

[0002] Industrial swivel casters achieve 360-degree rotation based on a ball bearing mechanism or bearing between their base plate and movable support, thus meeting the needs of movement and steering during operation. However, due to prolonged use under high loads, the ball bearing mechanism or bearings of industrial swivel casters experience severe wear, which in turn affects the smoothness of rotation.

[0003] Therefore, the ball bearing mechanism or bearings need to be lubricated regularly. However, the casters are mounted on trolleys and other work equipment, and the ball bearing mechanism or bearings often have a sealing structure, making lubrication and maintenance difficult and time-consuming. Utility Model Content

[0004] To address the difficulty of lubrication and maintenance in existing caster structures, this invention proposes an omnidirectional caster with a grease nipple, achieved through the following technical means:

[0005] An omnidirectional caster with an oil filler nozzle includes a base plate, a movable bracket, and rollers. A ball bearing mechanism is provided between the base plate and the movable bracket. An oil filler nozzle is provided on the movable bracket and communicates with the ball bearing mechanism for adding lubricating oil into the ball bearing mechanism.

[0006] Preferably, the bottom of the base plate is provided with a first ball bearing plate, the top of the movable bracket is provided with a second ball bearing plate, and steel balls are placed between the first ball bearing plate and the second ball bearing plate to form the ball bearing mechanism. The second ball bearing plate is provided with an oil inlet that is open inside and out, and the oil inlet is installed on the oil inlet.

[0007] Preferably, the movable bracket has two downwardly extending side plates, and the roller is mounted between the two side plates by a screw; the lower ends of the two side plates extend away from the oil nozzle.

[0008] Preferably, two rollers are installed between the two side plates on the movable support.

[0009] Preferably, the rollers are equipped with ball bearings, and two rollers are inserted through a screw and installed between the two side plates of the movable bracket.

[0010] Preferably, the screw is machined with an oil injection groove that extends along the length of the screw; the oil injection groove communicates with the surface of the screw, and an oil injection hole is provided at the end of the oil injection groove.

[0011] Compared with the prior art, the advantages of this utility model include at least the following:

[0012] 1) The ball bearing mechanism of the steering is equipped with an oil injection structure. Lubricating oil is added through the oil injection nozzle that is connected to the inside of the ball bearing mechanism. This operation does not require flipping the work equipment or disassembling the casters, which greatly improves maintenance efficiency and reduces the difficulty of oil injection.

[0013] 2) An oil injection structure is set up for the screw that acts as the roller shaft. Lubricating oil is added to the longitudinally penetrating oil injection groove through the oil injection hole. The lubricating oil flows out naturally from the groove opening when the screw rotates, and the lubrication between the roller and the screw is completed without disassembling the caster. It is especially suitable for the maintenance of casters of heavy-duty equipment.

[0014] 3) The double roller structure is adopted to improve the load-bearing capacity and stability of the casters, and effectively reduce the single-point force load on the ball bearings and screws on the rollers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the side structure of the caster.

[0016] Figure 2 This is a schematic diagram of the forward structure of a caster.

[0017] Figure 3 This is a schematic diagram of the lateral structure of the screw.

[0018] Figure 4 This is a schematic diagram of the disassembled structure of the roller. Detailed Implementation

[0019] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution:

[0020] Example 1

[0021] See appendix Figure 1 and 2 An omnidirectional caster with a grease nipple includes a base plate 1, a movable bracket 2, and rollers 3. A ball bearing mechanism is provided between the base plate 1 and the movable bracket 2. A grease nipple 4 is provided on the movable bracket 2, and the grease nipple 4 communicates with the ball bearing mechanism for adding lubricating oil to the ball bearing mechanism. Specifically, a first ball bearing plate 11 is provided at the bottom of the base plate 1, and a second ball bearing plate 21 is provided at the top of the movable bracket 2. Steel balls are placed between the first ball bearing plate 11 and the second ball bearing plate 21 to form the ball bearing mechanism. The second ball bearing plate 21 has an internally and externally penetrating grease inlet 20, and the grease nipple 4 is installed on the grease inlet 20. The structure of this patent allows lubricating oil to be added using tools such as a grease gun to the grease nipple 4, which communicates with the inside of the ball bearing mechanism. This operation does not require flipping the work equipment or disassembling the caster, greatly improving maintenance efficiency and reducing the difficulty of grease filling.

[0022] The movable support 2 has two downward-extending side plates 22. A roller 3 is mounted between the two side plates 22 via a screw 5. The lower ends of the two side plates extend away from the grease nipple 4 to provide sufficient space for lubrication. While the grease nipple 4 could also be located on the side of the movable support 2, it is more susceptible to damage during operation due to collisions. This patent places the grease nipple 4 in the middle between the two side plates of the movable support 2, providing better protection for it.

[0023] The ball bearing mechanism in this patent is a conventional ball bearing structure, therefore, this embodiment does not describe its internal details in detail, but this does not affect the meaning and implementation of the structure of this patent. Similarly, the connection between the base plate 1 and the movable bracket 2 via flat-head nails and nuts is also a conventional structure in the field, and therefore will not be described in detail.

[0024] Example 2

[0025] See appendix Figure 3 Based on Embodiment 1, the screw 5 is machined with an oil injection groove 51, which extends along the length of the screw and communicates with the surface of the screw 5. An oil injection hole 512 is provided at the end of the oil injection groove 51. In this patented structure, lubricating oil is added to the longitudinally penetrating oil injection groove 51 through the oil injection hole 512. The lubricating oil naturally flows out from the opening of the oil injection groove 51 when the screw 5 rotates, completing the lubrication between the roller 3 and the screw 5 without disassembling the caster. This is particularly suitable for the maintenance of casters on heavy-duty equipment.

[0026] Based on embodiments 1 and 2 above, the roller 3 may be equipped with a ball bearing 31, see appendix. Figure 4 The roller 3 is threaded through the ball bearing 31 by the screw 5 and installed between the two side plates 22 of the movable bracket 2.

[0027] Based on the above embodiments 1 and 2, the movable bracket 2 has two downwardly extending side plates 22, and two rollers 3 are installed between the two side plates 22 by screws 5. This patent adopts a double roller structure to improve the load-bearing capacity and stability of the casters, and effectively reduce the single-point force load on the ball bearings and screws on the rollers.

[0028] Based on the above embodiments 1 and 2, the outer side of the roller 3 is formed with a soft outer sleeve 32, thereby reducing the noise when the roller 3 rolls and improving the grip of the roller to a certain extent, preventing slippage.

[0029] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.

Claims

1. An omnidirectional caster with oil injection nozzle, comprising a base plate, a movable support and a roller, a ball mechanism is arranged between the base plate and the movable support, characterized in that, The movable bracket is equipped with an oil injection nozzle, which communicates with the ball bearing mechanism for adding lubricating oil to the ball bearing mechanism. The bottom of the base plate is equipped with a first ball bearing plate, and the top of the movable bracket is equipped with a second ball bearing plate. Steel balls are placed between the first and second ball bearing plates to form the ball bearing mechanism. The second ball bearing plate is equipped with an oil injection port that extends through the inside and outside. The oil injection nozzle is installed on the oil injection port. The movable bracket has two downward-extending side plates, and the rollers are installed between the two side plates by a screw. The lower ends of the two side plates extend away from the oil injection nozzle. Two rollers are installed between the two side plates on the movable bracket. An oil injection groove is machined on the screw, which extends along the length of the screw and communicates with the surface of the screw. An oil injection hole is provided at the end of the oil injection groove.

2. The omni-wheel with oil injection nozzle according to claim 1, characterized in that, The rollers are equipped with ball bearings, and two rollers are inserted through a screw and installed between the two side plates of the movable bracket.

3. The omnidirectional caster with grease fitting according to claim 1, characterized in that, The outer side of the roller is formed with a soft outer sleeve.

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