A floor cleaning machine wheel

Abstract

The utility model discloses a kind of scrubber wheels, including wheel hub and wheel core, the wheel core is equipped with shaft hole, detachable mounting sleeve is equipped in the shaft hole, the mounting sleeve is fixed with the inner wall circumferential of shaft hole, the inner wall middle of mounting sleeve is equipped with the mounting portion of annular protrusion, first bearing and second bearing are installed in the mounting sleeve, the rear side of first bearing and abutting portion abut, the front side of second bearing and abutting portion abut;It also includes the first limiting structure that can first bearing axial fixed and the second limiting structure that can second bearing axial fixed, reduce the probability that first bearing and second bearing appear loose, first bearing and second bearing do not directly contact with shaft hole, reduce the probability that direct contact between both produces abrasion, avoid that wheel core is abraded, prolong the service life of scrubber wheel.

Description

Technical Field

[0001] This utility model relates to the field of wheel technology, specifically to a floor scrubber wheel. Background Technology

[0002] Floor scrubbers are widely used in commercial, industrial, and public facility cleaning. When working, floor scrubbers encounter rough surfaces or uneven or hard objects on the ground, which puts a large load on the scrubber wheels. Traditionally, bearings are directly installed in the axle holes of the wheel core of floor scrubbers. Due to excessive load or long-term impact loads on the wheels, wear can easily occur between the bearings and the wheel core, resulting in loose bearings and affecting the service life of the floor scrubber wheels. Utility Model Content

[0003] The purpose of this invention is to provide a floor scrubber wheel that reduces the likelihood of the first and second bearings becoming loose, prevents wear on the wheel core, and extends the service life of the floor scrubber wheel.

[0004] To solve the above technical problems, this utility model adopts the following technical solution: a floor scrubber wheel, including a hub and a core, the core having a shaft hole, a detachable mounting sleeve inside the shaft hole, the mounting sleeve being circumferentially fixed to the inner wall of the shaft hole, the inner wall of the mounting sleeve having an annular protrusion in the middle, a first bearing and a second bearing being installed inside the mounting sleeve, the rear side of the first bearing abutting with the abutting part, and the front side of the second bearing abutting with the abutting part; it also includes a first limiting structure capable of axially fixing the first bearing and a second limiting structure capable of axially fixing the second bearing.

[0005] By adopting the above technical solution, the first bearing and the second bearing are installed in the mounting sleeve and separated from each other by the abutment part. They are fixed in their respective positions by the first limiting structure and the second limiting structure, which reduces the probability of the first bearing and the second bearing becoming loose. The first bearing and the second bearing do not directly contact the shaft hole, which reduces the probability of wear caused by direct contact between the two, avoids wear on the wheel core, and extends the service life of the floor scrubber wheel.

[0006] As a further optimization of this utility model, the first limiting structure consists of a plurality of protrusions located at the front end of the mounting sleeve and spaced equidistantly along the circumference. The front side of the first bearing abuts against the protrusions. When the first bearing needs to be removed, the plurality of protrusions can open relative to each other in the radial direction under the action of external force. When the mounting sleeve is installed with the shaft hole, the outer wall of the limiting block abuts against the inner wall of the shaft hole, thereby fixing the first bearing.

[0007] As a further optimization of this utility model, the second limiting structure is a limiting part in the form of annular protrusions provided on the rear side of the inner wall of the shaft hole, and the rear side of the second bearing abuts against the limiting part.

[0008] As a further optimization of this utility model, the inner wall of the shaft hole is provided with a number of keyways along the circumferential direction, and the side wall of the mounting sleeve is provided with a number of connecting keys along the circumferential direction.

[0009] As a further optimization of this utility model, the inner wall of the abutment part is provided with a ring-shaped protrusion reinforcing rib, which forms a ring-shaped stepped structure with the abutment part, thereby increasing the structural strength of the mounting sleeve.

[0010] The beneficial effects of this utility model are as follows: the first bearing and the second bearing are installed in the mounting sleeve and separated from each other by the abutment part. They are fixed in their respective positions by the first limiting structure and the second limiting structure, which reduces the probability of the first bearing and the second bearing becoming loose. The first bearing and the second bearing do not directly contact the shaft hole, which reduces the probability of wear caused by direct contact between the two, avoids wear on the wheel core, and extends the service life of the floor scrubber wheel. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a partial structural schematic diagram of the present invention;

[0013] The labels in the diagram have the following meanings: 11. Hub; 12. Wheel core; 121. Shaft hole; 2. Keyway; 3. Limiting part; 4. Mounting sleeve; 41. Abutment part; 42. Reinforcing rib; 43. Connecting part; 44. Protrusion; 51. First bearing; 52. Second bearing. Detailed Implementation

[0014] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0015] See appendix Figure 1-2 The present embodiment of this utility model further includes: a floor scrubber wheel, including a hub 11 and a wheel core 12. The wheel core 12 is provided with a shaft hole 121. A detachable mounting sleeve 4 is provided in the shaft hole 121. The mounting sleeve 4 is circumferentially fixed to the inner wall of the shaft hole 121. Specifically, the inner wall of the shaft hole 121 is provided with a plurality of keyways 2 along the circumferential direction, and the side wall of the mounting sleeve 4 is provided with a plurality of connecting keys along the circumferential direction.

[0016] The inner wall of the mounting sleeve 4 is provided with a ring-shaped protrusion in the middle. The mounting sleeve 4 is equipped with a first bearing 51 and a second bearing 52. The rear side of the first bearing 51 abuts against the abutment part 41, and the front side of the second bearing 52 abuts against the abutment part 41. It also includes a first limiting structure that can axially fix the first bearing 51 and a second limiting structure that can axially fix the second bearing 52.

[0017] Specifically, the first limiting structure consists of several protrusions 44 evenly spaced along the circumference at the front end of the mounting sleeve 4. The front side of the first bearing 51 abuts against the protrusions 44. When the first bearing 51 needs to be removed, the several protrusions 44 can open radially against each other under the action of external force. When the mounting sleeve 4 is installed with the shaft hole 121, the outer wall of the limiting block abuts against the inner wall of the shaft hole 121, thereby fixing the first bearing 51. The second limiting structure consists of a ring-shaped protrusion limiting part 3 on the rear side of the inner wall of the shaft hole 121. The rear side of the second bearing 52 abuts against the limiting part 3. During installation, it is not necessary to fix the bearing with additional parts, thus avoiding the loss of parts.

[0018] Furthermore, the inner wall of the abutment portion 41 is provided with a ring-shaped reinforcing rib 42, which forms a ring-shaped stepped structure with the abutment portion 41, thereby increasing the structural strength of the mounting sleeve 4.

[0019] The principle of this utility model is as follows: the first bearing 51 and the second bearing 52 are installed in the mounting sleeve 4 and separated from each other by the abutment part 41. They are fixed in their respective positions by the first limiting structure and the second limiting structure, which reduces the probability of the first bearing 51 and the second bearing 52 becoming loose. The first bearing 51 and the second bearing 52 do not directly contact the shaft hole 121, reducing the probability of wear caused by direct contact between the two, avoiding wear on the wheel core 12, and extending the service life of the floor scrubber wheel.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A floor scrubber wheel, comprising a hub (11) and a wheel core (12), wherein the wheel core (12) is provided with a shaft hole (121), characterized in that, A detachable mounting sleeve (4) is provided inside the shaft hole (121). The mounting sleeve (4) is circumferentially fixed to the inner wall of the shaft hole (121). The inner wall of the mounting sleeve (4) is provided with a ring-shaped protrusion mounting part in the middle. A first bearing (51) and a second bearing (52) are installed inside the mounting sleeve (4). The rear side of the first bearing (51) abuts against the abutment part (41), and the front side of the second bearing (52) abuts against the abutment part (41). It also includes a first limiting structure that can axially fix the first bearing (51) and a second limiting structure that can axially fix the second bearing (52).

2. The floor scrubber wheel according to claim 1, characterized in that, The first limiting structure consists of a plurality of protrusions (44) located at the front end of the mounting sleeve (4) and spaced equidistantly along the circumference, with the front side of the first bearing (51) abutting against the protrusions (44).

3. A floor scrubbing wheel according to claim 1 or 2, characterized in that, The second limiting structure is a limiting part (3) in the shape of an annular protrusion located on the rear side of the inner wall of the shaft hole (121), and the rear side of the second bearing (52) abuts against the limiting part (3).

4. A floor scrubbing wheel according to claim 1, characterized in that, The inner wall of the shaft hole (121) is provided with a number of keyways (2) along the circumferential direction, and the side wall of the mounting sleeve (4) is provided with a number of connecting keys along the circumferential direction.

5. A floor scrubbing wheel according to claim 1, characterized in that, The inner wall of the abutment part (41) is provided with a reinforcing rib (42) in the form of annular protrusions.

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