Sweeper nozzle travel wheel arrangement

Abstract

The utility model discloses a kind of sweeper suction nozzle walking wheel devices.The utility model is limited to walking wheel by adopting bearing seat and easily detachable wheel cover, simultaneously bearing seat adopts wide body structure, and it is more convenient to replace walking wheel.Further, the present application increases support assembly, reduces the problem of walking wheel and walking wheel shaft eccentric wear, and the present application is assembled a pair of cylindrical roller bearings in bearing seat, bearing two sides are additionally double oil seal and multiple O-ring, and further reduce the failure rate of walking wheel device.

Description

Technical Field

[0001] This utility model relates to the field of sweeper technology, and more specifically, to a sweeper suction nozzle travel wheel device. Background Technology

[0002] To accommodate the movement of the sweeper's suction nozzle, the sanitation sweeper is equipped with wheels. During sweeping operations, the nozzle lowers, at which point the wheels contact the road surface and rotate as the vehicle moves.

[0003] Existing sweeper wheel systems utilize a bearing structure based on their rotational characteristics, with the wheel mounted on the outside of the bearing housing. A common structure involves the bearing housing hub being a two-part structure that clamps the wheel. However, this structure leads to inconvenience in disassembly and assembly. Furthermore, the cantilevered design of the wheel system causes uneven wear on the wheel and axle. Additionally, the sweeper's operating environment contains a lot of sewage, dust, and sand particles, making the bearings prone to seizing and corrosion. Utility Model Content

[0004] This invention overcomes the shortcomings of existing technologies in terms of replacing the walking wheels and sealing, and provides a sweeper suction nozzle walking wheel device in order to solve the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A sweeper suction nozzle travel wheel device includes a travel wheel, a travel wheel axle, a bearing housing, a wheel cover, and a bearing;

[0007] The axle of the walking wheel is fitted with a bearing, the bearing housing is fitted onto the bearing, and the wheel cover is installed on the axle of the walking wheel.

[0008] The walking wheel is mounted on a bearing seat. One end of the bearing seat is provided with a limit baffle. One side of the walking wheel is limited by the limit baffle of the bearing seat, and the other side is limited by the wheel cover.

[0009] A further technical solution is that the wheel cover is installed on the walking wheel axle by screwing.

[0010] The inner side of the travel wheel is supported and limited by a bearing housing; the other side is limited by a wheel cover, which is screwed to the bearing housing. When the travel wheel needs to be replaced, simply remove the wheel cover, and the travel wheel can be axially removed. After replacement, it can be quickly installed and positioned, which is convenient and quick.

[0011] A further technical solution is that the walking wheel device also includes a support assembly, which includes a left support and a right support;

[0012] The walking wheel axle passes through the bracket assembly and is fixed by the bracket assembly.

[0013] By using brackets to limit the movement of the wheel axle, uneven wear of the wheel and wheel axle can be avoided.

[0014] A further technical solution is that one end of the walking wheel axle is provided with a limiting plate with a diameter larger than the mounting hole of the corresponding bracket assembly;

[0015] The other end of the walking wheel axle is threaded and fitted with a nut.

[0016] A further technical solution is that the traveling wheel device also includes oil seals and spacers;

[0017] The oil seal includes a first oil seal and a second oil seal; the bearing includes a first cylindrical roller bearing and a second cylindrical roller bearing; the spacer includes a first spacer.

[0018] A first spacer is provided between the first cylindrical roller bearing and the second cylindrical roller bearing, and a first oil seal and a second oil seal are respectively provided on the non-adjacent sides of the first cylindrical roller bearing and the second cylindrical roller bearing.

[0019] To prevent dust and water from entering the bearings during operation, oil seals are used to seal the bearings, and a first spacer is used to axially limit the first cylindrical roller bearing and the second cylindrical roller bearing to prevent slippage during operation.

[0020] A further technical solution is that the walking wheel device also includes O-rings;

[0021] The O-ring includes a first O-ring, and the spacer includes a second spacer;

[0022] A second spacer and a first O-ring are installed between the oil seal, which is located near the wheel cover, and the axle of the traveling wheel.

[0023] A further technical solution is that the O-ring includes a second O-ring;

[0024] The second O-ring is disposed between the wheel cover and the bearing housing.

[0025] The O-ring and the second spacer can further improve the waterproof and dustproof effect of the bearing, the axle area of ​​the running wheel, and the wheel cover and bearing seat area.

[0026] Compared with the prior art, this utility model has at least the following beneficial effects: This utility model uses a bearing housing and an easily removable wheel cover to limit the movement of the traveling wheel, and the bearing housing adopts a wide-body structure, making it easier to replace the traveling wheel. Furthermore, this application adds a support assembly, reducing the problem of uneven wear on the traveling wheel and its axle. Additionally, this application assembles a pair of cylindrical roller bearings inside the bearing housing, with double oil seals and multiple O-rings added to both sides of the bearings, thereby reducing the failure rate of the traveling wheel assembly. Attached Figure Description

[0027] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0028] In the diagram, 1-bracket, 2-wheel, 3-second O-ring, 4-first oil seal, 5-first O-ring, 6-second spacer, 7-wheel cover, 8-oil seal sleeve, 9-bearing housing, 10-cylindrical roller bearing, 11-wheel axle, 12-second oil seal, 13-first spacer. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0030] A sweeper suction nozzle travel wheel device, see Figure 1 It includes: 2 traveling wheels, 11 traveling wheel axles, 9 bearing seats, 7 wheel covers, bearings, bracket assemblies, oil seals, spacers, and O-rings;

[0031] The walking wheel axle 11 is fitted with a bearing, the bearing seat 9 is fitted onto the bearing, and the wheel cover 7 is installed on the walking wheel axle 11;

[0032] In this embodiment, the wheel cover 7 is screwed onto the walking wheel axle 11.

[0033] The walking wheel 2 is mounted on the bearing seat 9. One end of the bearing seat 9 is provided with a limiting baffle. One side of the walking wheel 2 is limited by the limiting baffle of the bearing seat 9, and the other side is limited by the wheel cover 7.

[0034] The support assembly includes a left support 1 and a right support 1; the walking wheel axle 11 passes through the support assembly and is fixed by the support assembly.

[0035] The bracket assembly can fix the walking wheel axle 11 in various ways, such as snap-fit ​​or threaded fixation. In this embodiment, one end of the walking wheel axle 11 is provided with a limiting plate with a diameter larger than the mounting hole of the corresponding bracket assembly.

[0036] The other end of the walking wheel axle 11 is threaded and fitted with a nut.

[0037] During installation, the limit plate is snapped onto the outside of the mounting hole of the bracket assembly, fixing one end and securing the other end with a nut. The tightness can be adjusted according to the tightening requirements.

[0038] In this embodiment, the oil seal includes a first oil seal 4 and a second oil seal 12; the bearing includes a first cylindrical roller bearing 10 and a second cylindrical roller bearing 10; the spacer includes a first spacer 13 and a second spacer 6.

[0039] The O-rings include a first O-ring 5 and a second O-ring 3;

[0040] A first spacer 13 is provided between the first cylindrical roller bearing 10 and the second cylindrical roller bearing 10. A first oil seal 4 and a second oil seal 12 are respectively provided on the non-adjacent sides of the first cylindrical roller bearing 10 and the second cylindrical roller bearing 10.

[0041] A second spacer 6 and a first O-ring 5 are provided between the oil seal located near the wheel cover 7 and the travel wheel axle 11.

[0042] The second O-ring 3 is disposed between the wheel cover 7 and the bearing seat 9.

[0043] During installation, the travel wheel axle 11 is passed through the right-side bracket 1 and installed on the travel wheel axle 11 in the following order: second oil seal 12, first cylindrical roller bearing 10, first spacer 13, second cylindrical roller bearing 10, and first oil seal 4. A second spacer 6 is fitted inside the first oil seal 4, and a first O-ring 5 is provided at the bottom of the second spacer 6.

[0044] A bearing housing 9 is fitted on the upper part of the second oil seal 12, the first cylindrical roller bearing 10, the second cylindrical roller bearing 10, and the first oil seal 4, and the traveling wheel 2 is installed on the bearing housing 9.

[0045] Install wheel cover 7 on the outside of second spacer 6, install first O-ring 5 between wheel cover 7 and bearing seat 9, and fix wheel cover 7 with screws.

[0046] Finally, pass the walking wheel axle 11 through the left bracket 1 and fix it with bolts to complete the installation.

[0047] When replacing the traveling wheel 2, simply remove the wheel cover 7, and the traveling wheel 2 can be axially removed and replaced. Although the present invention has been described herein with reference to illustrative embodiments, it should be understood that those skilled in the art can devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of this application, various variations and improvements can be made to the components and / or layout of the subject matter combination layout. Besides variations and improvements to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A sweeper nozzle travel wheel device, characterized in that, This includes: wheels, wheel axles, bearing housings, wheel covers, and bearings; The axle of the walking wheel is fitted with a bearing, the bearing housing is fitted onto the bearing, and the wheel cover is installed on the axle of the walking wheel. The walking wheel is mounted on a bearing seat. One end of the bearing seat is provided with a limit baffle. One side of the walking wheel is limited by the limit baffle of the bearing seat, and the other side is limited by the wheel cover.

2. The sweeper suction nozzle travel wheel device as described in claim 1, characterized in that, The wheel cover is screwed onto the axle of the walking wheel.

3. The sweeper suction nozzle travel wheel device as described in claim 1, characterized in that, Includes a support assembly, the support assembly comprising a left support and a right support; The walking wheel axle passes through the bracket assembly and is fixed by the bracket assembly.

4. The sweeper suction nozzle travel wheel device as described in claim 3, characterized in that, One end of the walking wheel axle is provided with a limiting plate with a diameter larger than the mounting hole of the corresponding bracket assembly; The other end of the walking wheel axle is threaded and fitted with a nut.

5. A sweeper suction nozzle travel wheel device as described in any one of claims 1-4, characterized in that, It also includes oil seals and spacers; The oil seal includes a first oil seal and a second oil seal; the bearing includes a first cylindrical roller bearing and a second cylindrical roller bearing; the spacer includes a first spacer. A first spacer is provided between the first cylindrical roller bearing and the second cylindrical roller bearing, and a first oil seal and a second oil seal are respectively provided on the non-adjacent sides of the first cylindrical roller bearing and the second cylindrical roller bearing.

6. The sweeper suction nozzle travel wheel device as described in claim 5, characterized in that, Also includes O-rings; The O-ring includes a first O-ring, and the spacer includes a second spacer; A second spacer and a first O-ring are installed between the oil seal, which is located near the wheel cover, and the axle of the traveling wheel.

7. The sweeper suction nozzle travel wheel device as described in claim 6, characterized in that, The O-ring includes a second O-ring; The second O-ring is disposed between the wheel cover and the bearing housing.

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