Driving roller brush connecting structure

Abstract

This utility model discloses a drive roller brush connection structure, which includes a mounting base, a spline sleeve inserted inside the mounting base, and two ends of the spline sleeve's central protruding shoulder connected to the mounting base via self-aligning bearings. A gap is left between the spline sleeve and the cavity of the mounting base to form an oil channel, which communicates with an oil filler nozzle and the self-aligning bearings. Oil seals are provided outside the self-aligning bearings, and pressure blocks are provided between the oil seals and the mounting base. One end of the spline sleeve protrudes from the mounting base, with a sealing plate at the protrusion point. The other end of the spline sleeve is submerged in the cavity of the mounting base, with a motor mounting flange at the submerged point flush with the port of the mounting base. This utility model has a certain self-aligning function, avoiding installation difficulties caused by coaxiality errors, and effectively reducing damage to the motor caused by load impact during roller brush operation. Simultaneously, with part of it built into the roller core, the overall width of the roller brush can be effectively reduced without changing the effective width of the roller brush, improving the applicability and flexibility of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of snowplow manufacturing technology, and in particular to a drive roller brush connection structure for a snowplow with a roller brush. Background Technology

[0002] In winter, snow accumulation on roads poses a significant threat to traffic safety and efficiency. Snow makes roads slippery, increasing the risk of skidding and braking distance, thus greatly raising the probability of traffic accidents. Especially during extreme weather events like snowstorms, large accumulations of snow can quickly block major roads, hindering the timely delivery of relief supplies and impeding rescue efforts, seriously threatening lives and property. Snowplows, as indispensable snow removal equipment for winter road clearing and snow disaster relief, play a crucial role in winter road maintenance and emergency rescue due to their efficient snow removal capabilities, quickly clearing snow from roads, restoring normal traffic flow, and ensuring smooth traffic operation.

[0003] Currently, most rotary brush snowplows on the market use a hydraulic motor directly connected to the roller core as the drive mechanism. This drive structure is relatively simple and direct in its design principle, utilizing the rotational motion of the hydraulic motor to drive the roller core, thereby achieving the snow-sweeping function of the brush. Hydraulic motors themselves have advantages such as high power density and ease of stepless speed regulation, which can, to a certain extent, meet the basic operational requirements of rotary brush snowplows.

[0004] However, this existing drive structure has several significant problems. First, it requires extremely high coaxiality of the motors at both ends of the roller core. Coaxiality refers to the degree of overlap between the axes of two or more cylindrical surfaces. In the existing structure, since the hydraulic motors are directly connected to both ends of the roller core, if there is a large error in coaxiality during installation, the connection between the motor and the roller core will be unsmooth, generating additional friction and vibration. This will not only seriously affect the normal rotation of the roller brush and reduce snow removal efficiency, but also accelerate the wear of the motor and the roller core, greatly shortening the service life of the equipment. Moreover, in actual installation, achieving such high-precision coaxiality requires a lot of manpower and time, increasing the difficulty and cost of installation. Second, during the operation of the roller brush snowplow, the roller brush will inevitably be subjected to radial or axial load impacts from the road surface. For example, when the roller brush encounters obstacles such as ice or stones on the road surface, it will generate a large radial impact force; during vehicle travel, due to uneven road surfaces or sudden braking, the roller brush will also be subjected to axial load impacts. In existing drive structures, the hydraulic motor is directly exposed to these load impacts, lacking effective buffering and protection mechanisms, making it highly susceptible to damage. Once the motor fails, the roller brush will malfunction, snow removal cannot be completed, and significant time and expense will be required for repair and replacement, severely impacting work efficiency and economic benefits. Thirdly, in existing drive structures, the hydraulic motor is typically located entirely externally at both ends of the roller core. This design means that the overall width of the roller brush must not only include the effective width of the roller core but also the size and installation space of the motor. With the effective width of the roller brush remaining constant, the increase in overall width limits the use of roller brush snowplows in narrow roads or special scenarios, reducing the equipment's applicability and flexibility.

[0005] In view of the above-mentioned problems with the existing roller brush drive structure, in order to further improve the performance and reliability of the roller brush snow sweeper, reduce the installation difficulty and cost, and expand the scope of application of the equipment, it is particularly necessary to develop a new connection structure for driving the roller brush. Summary of the Invention

[0006] This utility model provides a drive roller brush connection structure, which has a certain self-aligning function. It can not only avoid the installation difficulties caused by coaxiality errors, but also effectively reduce the damage to the motor caused by load impact during roller brush operation. At the same time, it is partially built into the roller core, which can effectively reduce the overall width of the roller brush without changing the effective width of the roller brush, thereby improving the applicability and flexibility of the equipment.

[0007] To solve the above problems, the technical solution adopted by this utility model is: It includes a hollow mounting base with an oil filler nozzle. A spline sleeve with a central protrusion and keyways at both ends is inserted into the cavity of the mounting base. The two ends of the central protrusion of the spline sleeve are connected to the mounting base via self-aligning bearings. A gap is left between the central protrusion of the spline sleeve and the cavity of the mounting base to form an oil channel, which communicates with the oil filler nozzle and the self-aligning bearings. An oil seal is provided outside the self-aligning bearings, and a pressure block is provided between the oil seal and the mounting base. One end of the spline sleeve protrudes from the mounting base and is provided with a sealing plate at the protrusion point. The oil seal and the pressure block are located within the sealing plate. The other end of the spline sleeve is inserted into the cavity of the mounting base, and a motor mounting flange is provided at the insertion point. The outward-facing port of the motor mounting flange is flush with the port of the mounting base.

[0008] A more specific technical solution to the above technical solution could be that the self-aligning bearing is a self-aligning roller bearing.

[0009] Furthermore, the motor mounting flange is detachably connected to the mounting base.

[0010] Furthermore, the motor mounting flange is bolted to the mounting base.

[0011] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: 1. This utility model uses a self-aligning bearing to connect the spline sleeve and the mounting base. When there is an error in the coaxiality of the motors at both ends of the roller core, the self-aligning bearing can automatically adjust to ensure smooth connection, avoid installation difficulties caused by coaxiality errors, reduce additional friction and vibration, ensure normal rotation of the roller brush, improve snow removal efficiency, and extend the service life of the equipment.

[0012] 2. In this utility model, a gap is left between the central protruding shoulder of the spline sleeve and the cavity of the mounting base to form an oil channel. The oil channel is connected to the filler nozzle and the bearings at both ends. Oil seals are provided outside the bearings at both ends. When the roller brush is subjected to radial or axial load impact from the road surface, these structures form a buffer protection system. The oil in the oil channel can absorb and disperse the impact energy to a certain extent, reducing the impact force directly transmitted to the motor. This effectively reduces the damage to the motor caused by the load impact during the operation of the roller brush, avoids the roller brush from failing to work properly due to motor damage, reduces maintenance and replacement costs, and improves work efficiency and economic benefits.

[0013] 3. One end of the spline sleeve of this utility model protrudes from the mounting base, and the other end is inserted into the cavity of the mounting base, with a motor mounting flange provided at the insertion point. This design, which is partially built into the roller core, means that the overall width of the roller brush no longer simply includes the effective width of the roller core and the additional motor size and installation space. That is, under the condition that the effective width of the roller brush remains unchanged, the overall width of the roller brush is effectively reduced, improving the applicability and flexibility of the equipment in narrow roads or special scenarios.

[0014] 4. The motor mounting flange and mounting base of this utility model are detachably connected. This design facilitates the installation, disassembly, maintenance and replacement of the motor. When the motor fails or needs to be replaced, the motor mounting flange can be easily disassembled for operation, which improves the maintainability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the mounting base of this utility model.

[0017] Figure 3 This is a schematic diagram of the installation of this utility model.

[0018] Figures 1-3 In the diagram, the components are: 1 – mounting base, 2 – spline sleeve, 3 – self-aligning bearing, 4 – oil channel, 5 – oil filler, 6 – oil seal, 7 – pressure block, 8 – sealing plate, 9 – motor mounting flange, 10 – bolt, 11 – motor, 12 – roller core, and 13 – this utility model. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings: like Figures 1-2 As shown, a drive roller brush connection structure includes a hollow mounting base 1 with an oil filling nozzle 6. A spline sleeve 2 with a central protrusion and keyways at both ends is fitted inside the cavity of the mounting base 1. The two ends of the central protrusion of the spline sleeve 2 are connected to the mounting base 1 via self-aligning bearings 3. By using self-aligning bearings 3 to connect the spline sleeve 2 and the mounting base 1, when there is an error in the coaxiality of the motors 11 at both ends of the roller core, the self-aligning bearings 3 can automatically adjust, ensuring smooth connection, avoiding installation difficulties caused by coaxiality errors, reducing additional friction and vibration, ensuring normal rotation of the roller brush, improving snow removal efficiency, and extending the service life of the equipment.

[0020] A gap is left between the central protruding shoulder of the spline sleeve 2 and the cavity of the mounting base 1 to form an oil channel 4. The oil channel 4 is connected to the oil filler nozzle 5 and the self-aligning bearing 3 respectively. An oil seal 6 is provided outside the self-aligning bearing 3, and a pressure block 7 is provided between the oil seal 6 and the mounting base 1. When the roller brush is subjected to radial or axial load impact from the road surface, these structures form a buffer protection system. The oil in the oil channel 4 can absorb and disperse the impact energy to a certain extent, reducing the impact force directly transmitted to the motor 11. This effectively reduces the damage to the motor 11 caused by the load impact during the operation of the roller brush, avoids the roller brush from failing to work properly due to motor 11 damage, reduces maintenance and replacement costs, and improves work efficiency and economic benefits.

[0021] One end of the spline sleeve 2 protrudes from the mounting base 1, and a sealing plate 8 is provided at the protrusion point. The oil seal 6 and the pressure block 7 are located within the sealing plate 8. The other end of the spline sleeve 2 is submerged in the cavity of the mounting base 1, and a motor mounting flange 9 is provided at the submerged point. This design has two advantages: first, it allows part of the length of the spline sleeve 2 to be hidden inside the mounting base 1, rather than being completely exposed on both sides of the roller core 12; second, the motor mounting flange 9 serves as the fixing interface for the motor 11, and its built-in design allows the installation position of the motor 11 to be closer to the center of the roller core 12, rather than extending outward. This design, which is partially built into the roller core 12, means that the overall width of the roller brush no longer simply includes the effective width of the roller core 12 and the additional size and installation space of the motor 11. That is, under the condition that the effective width of the roller brush remains unchanged, the overall width of the roller brush is effectively reduced, improving the applicability and flexibility of the equipment in narrow roads or special scenarios.

[0022] The port of the motor mounting flange 9 facing outward is flush with the port of the mounting base 1. This design eliminates the part of the motor 11 that protrudes outside the roller core 12 in the conventional structure, further compressing the lateral dimension of the roller brush.

[0023] Preferably, the self-aligning bearing 3 is a self-aligning roller bearing. Compared with other types of self-aligning bearings, self-aligning roller bearings have a stronger load-bearing capacity and can withstand radial and axial loads simultaneously. They are suitable for heavy-load or vibration load conditions, such as the impact loads that a snowplow may experience when clearing snow.

[0024] Preferably, the motor mounting flange 9 and the mounting base 1 are connected in a detachable manner. This design facilitates the installation, disassembly, maintenance, and replacement of the motor 11: when the motor 11 malfunctions or needs to be replaced, the motor mounting flange 9 and the motor 11 can be easily removed from the mounting base 1 as a whole, the connection between the motor 11 and the hydraulic pipeline can be disconnected, the motor mounting flange 9 can be removed, and the repaired, maintained, or new motor 11 can be installed onto the mounting base 1 through the motor mounting flange 9. The pipeline can then be reconnected to complete the replacement or maintenance of the motor 11.

[0025] Preferably, the motor mounting flange 9 is mounted on the mounting base 1 by bolts 10.

[0026] like Figure 3 As shown, the present invention 13 serves as a connection structure between the drive motor 11 and the roller core 12, and is respectively installed at both ends of the roller core 12. One end of the roller core 13, which has a motor mounting flange 9, is connected to the drive motor 11, and the other end is connected to the roller core 12.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A drive roller brush connection structure, characterized in that: The device includes a hollow mounting base with an oil filler nozzle. A spline sleeve with a central protrusion and keyways at both ends is fitted inside the cavity of the mounting base. The two ends of the central protrusion of the spline sleeve are connected to the mounting base via self-aligning bearings. A gap exists between the central protrusion of the spline sleeve and the cavity of the mounting base, forming an oil channel that communicates with both the oil filler nozzle and the self-aligning bearings. Oil seals are provided outside the self-aligning bearings, and pressure blocks are provided between the oil seals and the mounting base. One end of the spline sleeve protrudes from the mounting base, and a sealing plate is provided at the protrusion point. The oil seal and the pressure block are located within the sealing plate. The other end of the spline sleeve is submerged in the cavity of the mounting base, and a motor mounting flange is provided at the submerged point. The outward-facing port of the motor mounting flange is flush with the port of the mounting base.

2. The drive roller brush connection structure according to claim 1, characterized in that: The self-aligning bearing is a self-aligning roller bearing.

3. The drive roller brush connection structure according to claim 1, characterized in that: The motor mounting flange is detachably connected to the mounting base.

4. The drive roller brush connection structure according to claim 2, characterized in that: The motor mounting flange is detachably connected to the mounting base.

5. The drive roller brush connection structure according to claim 3 or 4, characterized in that: The motor mounting flange is bolted to the mounting base.

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