CN219011069U - Suction nozzle wheel assembly suitable for medium speed - Google Patents

Abstract

The utility model relates to a suction nozzle wheel assembly suitable for medium speed, which comprises a tire, a main bearing seat, an integrated main bearing, a shaft, a bearing end cover and a shaft end cover, wherein the tire is formed by integrally vulcanizing rubber and a hub, the tire flatness is larger than that of a high-speed tire, the tire is integrally assembled with the main bearing seat through a first bolt, an inner hole of the main bearing seat is provided with an integrated main bearing, the integrated main bearing is arranged on the shaft, the bearing end cover is connected with the end surface of the main bearing seat through a second bolt, the inner side of the shaft is sleeved with a check ring, the shaft end cover is connected with the outer side of the shaft through a third bolt, and meanwhile, the shaft end cover and the outer side of the shaft are circumferentially fixed through positioning pins, and sealing rings are arranged between the check ring and the bearing end cover and between the shaft end cover and the main bearing seat. The utility model improves the tire speed, adapts to the road sweeper operation in the section of 20km-40km per hour, simultaneously has the advantages of maintenance-free service life improvement, small and compact structure and greatly reduces the weight and the volume of the assembly.

Description

Suction nozzle wheel assembly suitable for medium speed

Technical Field

The utility model relates to the related field of road cleaning equipment parts, in particular to a suction nozzle wheel assembly suitable for medium speed.

Background

All road sweeper in the existing market are generally provided with one to two suction nozzle bodies, and each suction nozzle is provided with 3-4 suction nozzle wheel assemblies. The suction nozzle wheel mainly plays a role in supporting the suction nozzle body to keep a certain ground clearance with the ground, and the suction nozzle body keeps a full floating state under the action of the suction nozzle wheel, so that the clearance can be automatically adjusted along with uneven and timely fluctuation of the ground, and the suction uniformity of the suction nozzle is guaranteed. The whole suction nozzle body is provided with forward power by two pull rods, the pull rods are connected between the vehicle body and the suction nozzle body, and the suction nozzle body is in a passive walking state. The suction nozzle body is generally arranged between the front axle and the rear axle of the vehicle body, and is also arranged in front of the front axle and behind the rear axle, and is generally in a passive walking state, and has no advancing and steering functions. The suction nozzle wheel assembly is positioned around the suction nozzle body, so that the environment is bad, water and dust are more, and the single tire load is larger in a negative pressure state. In addition, because the special function of the suction nozzle body needs to be maintained, the general hardness of the suction nozzle wheel is higher, the service life of the conventional suction nozzle wheel bearing is not long due to the comprehensive factors, the consistency is poor, the service life is greatly influenced by factors such as the habit of driving equipment of a vehicle driver, and the like, so that the conventional conservative market problem is caused, and particularly, the conventional suction nozzle wheel is not suitable for a road sweeper with the speed of 20km-40km section.

Disclosure of Invention

Aiming at the problems, the utility model provides the suction nozzle wheel assembly which is suitable for medium speed, improves the tire polar speed, adapts to the operation of sweeping vehicles in a 20km-40km section, prolongs the service life, and greatly reduces the weight and the volume of the assembly.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a suction nozzle wheel assembly suitable for intermediate speed, includes rubber and hub integrated into one piece's tire, main bearing frame, integral type main bearing, axle, bearing cap and head cap, the tire flat rate is greater than high-speed tire flat rate, just the tire passes through from the hub of taking and main bearing frame and assembles as an organic wholely through first bolted connection, main bearing frame hole bears the integral type main bearing, just integral type main bearing installs on the axle, the bearing cap passes through second bolted connection in main bearing frame terminal surface, the retaining ring has been cup jointed to the axle inboard, the head cap passes through third bolted connection in the axle lateral surface, and the locating pin through being equipped with simultaneously the head cap keeps position circumference fixed with the axle lateral surface, all be equipped with the sealing washer between retaining ring and the bearing cap, between head cap and the main bearing frame.

Preferably, the integral main bearing is an integral double-row tapered roller bearing.

Preferably, the sealing ring is a maintenance-free self-lubricating sealing ring.

Preferably, a decorative cover is sleeved on the bearing end cover.

Compared with the prior art, the utility model has the following beneficial effects:

1. compared with the design of a high-speed solid tire, the utility model has the advantages that the large flatness ratio is selected, so that the same equivalent service life target is realized under the smaller tire diameter, and meanwhile, compared with the design of a low-speed solid tire, the tire and hub integrated vulcanization molding ensures that the solid tire is lifted at the extremely high speed, and the utility model is suitable for the road sweeper operation with the speed per hour in the section of 20km-40 km;

2. the main bearing adopts a maintenance-free integrated design, such as an integrated double-row tapered roller bearing, so that the daily maintenance work is reduced, the integral anti-rolling capacity of the suction nozzle wheel is increased, the assembly consistency of the main bearing is greatly improved, the service life of the main bearing is prolonged, and the main bearing is simple in maintenance-free oil seal design through the structure of the scheme, and is provided with the seal, so that a multi-layer seal is formed on the premise that the cost is effectively controlled, and the service life of the integrated main bearing is ensured;

3. the utility model has the advantages that the tire diameter is equivalent to that of a low-speed tire due to the selection of larger tire flatness and the integral vulcanization of the rubber and the hub, compared with the prior high-speed tire technical scheme, the weight and the volume of the assembly are greatly reduced on the premise of not influencing the service life, and the manufacturing cost is saved;

4. the retainer ring is arranged to be used for pulling out the integrated main bearing during maintenance, and simultaneously serves as a mounting seat of the sealing ring, and forms multi-layer sealing together with the sealing ring, so that the waterproof and dustproof capabilities of the integrated main bearing are facilitated;

5. according to the utility model, the bearing end cover and the shaft end cover form pressure on the end face of the main bearing through tightening the bolts, and then the rotation of the inner ring of the outer ring of the integrated main bearing is respectively limited through the joint retainer ring and fixed by the positioning pins, so that the inner ring of the integrated main bearing can be ensured not to run even if the inner ring of the integrated main bearing is in loose fit, the service life is ensured, and the integrated main bearing is convenient to assemble, disassemble and replace.

Drawings

FIG. 1 is a front view of the present utility model;

fig. 2 is a cross-sectional view taken along A-A in fig. 1.

Detailed Description

The present utility model will now be described in detail with reference to fig. 1-2, wherein the exemplary embodiments and descriptions of the present utility model are provided for illustration of the present utility model and are not intended to be limiting.

A suction nozzle wheel assembly suitable for medium speed comprises a tire 1 formed by integrally vulcanizing rubber and a hub, a main bearing seat 2, an integral main bearing 4, a shaft 3, a bearing end cover 7 and a shaft end cover 9, wherein the tire flatness is larger than that of a high-speed tire, the diameter of the tire is equal to that of a low-speed tire through the selection of the larger flatness and the integral vulcanization of the rubber and the hub, the solid tire is lifted at the same time, the road sweeper working with the speed of 20km-40km section is adapted, compared with the prior high-speed tire technical scheme, the weight and the volume of the assembly are greatly reduced, the manufacturing cost is also reduced, the tire is assembled into a whole through the connection of the hub and the main bearing seat through a first bolt 13, the inner hole of the main bearing seat is provided with an integral double-row tapered roller bearing, the integrated main bearing is installed on the shaft, the bearing end cover is connected to the end face of the main bearing seat through a second bolt 8 and used for limiting the axial displacement of the outer ring of the integrated main bearing, a check ring 5 is sleeved on the inner side of the shaft, a maintenance-free and self-lubricating sealing ring 6 is installed between the check ring and the bearing end cover, the check ring is used for pulling out the integrated main bearing during maintenance and simultaneously serves as an installation seat of the sealing ring, a multi-layer seal is formed together with the sealing ring, the waterproof and dustproof effects are enhanced, the shaft end cover is connected to the outer side face of the shaft through a third bolt 10, the integrated main bearing inner ring is tightly pressed by the joint check ring, the circumferential rotation limitation between the shaft end cover and the shaft is realized by a positioning pin 12 installed on the outer side face of the shaft, so that the main bearing inner ring can be ensured not to run even under the premise of loose fit, the service life is guaranteed, the failure occurrence rate is reduced, the assembling, disassembling and replacing of the integrated main bearing are facilitated, a maintenance-free and self-lubricating sealing ring is installed between the shaft end cover and the main bearing seat, the waterproof and dustproof functions are enhanced, and in addition, the decorative cover 11 is sleeved on the bearing end cover, so that the waterproof, dustproof and attractive functions are further achieved.

The foregoing has described in detail the technical solutions provided by the embodiments of the present utility model, and specific examples have been applied to illustrate the principles and implementations of the embodiments of the present utility model, where the above description of the embodiments is only suitable for helping to understand the principles of the embodiments of the present utility model; meanwhile, as for those skilled in the art, according to the embodiments of the present utility model, there are variations in the specific embodiments and the application scope, and the present description should not be construed as limiting the present utility model.

Claims (4)

1. Suction nozzle wheel assembly suitable for medium speed, its characterized in that: including rubber and hub integrated into one piece's tire (1), main bearing housing (2), integral type main bearing (4), axle (3), bearing cap (7) and head cap (9), the tire flat rate is greater than high-speed tire flat rate, just the tire passes through hub and main bearing housing from the area and connects the assembly as an organic wholely through first bolt (13), main bearing housing hole bears the integral type main bearing, just integral type main bearing installs on the axle, the bearing cap passes through second bolt (8) and connects in main bearing housing terminal surface, the retaining ring (5) have been cup jointed to the axle inboard, the head cap passes through third bolt (10) and is connected in the axle lateral surface, and simultaneously the locating pin (12) through being equipped with keep position circumference fixed for the head cap and axle lateral surface, all be equipped with sealing washer (6) between retaining ring and the bearing cap, between head cap and the main bearing housing.

2. The nozzle wheel assembly of claim 1 adapted for medium speed, wherein: the integrated main bearing adopts an integrated double-row tapered roller bearing.

3. The nozzle wheel assembly of claim 1 adapted for medium speed, wherein: the sealing ring is a maintenance-free self-lubricating sealing ring.

4. The nozzle wheel assembly of claim 1 adapted for medium speed, wherein: and a decorative cover (11) is sleeved on the bearing end cover.

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