Brake structure of snow sweeper and snow sweeper

Abstract

The brake structure comprises a main machine body, an auger is arranged in the main machine body, and the brake structure is characterized in that the main machine body is provided with a side end face, one end of the auger extends to the outer side of the side end face and forms a connecting end, and a transmission wheel is arranged at the connecting end; a positioning seat is arranged on the side end face, a brake pad is arranged on the positioning seat, and the positioning seat is arranged on the outer side of the connecting end in a winding mode. At least two brake blocks are arranged on the transmission wheel, one end of each brake block is rotationally connected with the transmission wheel, the other end of each brake block is connected with the elastic piece, the elastic piece pulls the brake blocks towards the axis direction of the transmission wheel, and the brake pads are located on the inner sides of the brake blocks and are in contact fit with the brake blocks. Normal operation and braking of the auger can be achieved in a centrifugal mode, the overall structure is simple, using is stable, braking cost can be reduced, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of snow sweepers, in particular to a brake structure of a snow sweeper which realizes a low-cost and high-stability braking function and the snow sweeper. Background Art

[0002] A snowplow is an important equipment for removing snow in winter, and is mainly composed of a prime mover, a transmission device, a snow collecting device, a snow removing device, a walking system and an operating device. For example, a snowplow auger and a snowplow disclosed in patent number CN211690158U include a snowplow auger, a casing, a rolling assembly and a power device.

[0003] At present, snowplows in the American market are required to brake within 3 seconds. The braking problem of general snowplows has always been a difficulty and pain point in the entire product development. At present, snowplows generally use a motor reverse winding structure for braking. This solution will cause the motor power to become smaller in a limited space, and the braking process will continuously impact the motor commutator, reducing the service life of the motor, which is insufficient. Utility Model Content

[0004] The utility model aims to avoid the deficiencies of the prior art and provides a brake structure of a snow sweeper and a snow sweeper which realizes a low-cost and high-stability braking function.

[0005] The utility model solves the technical problem by adopting the following technical solution: a brake structure of a snow sweeper, comprising a main body, wherein an auger is arranged in the main body, and characterized in that the main body has a side end surface, one end of the auger extends to the outside of the side end surface and forms a connecting end, and a transmission wheel is arranged on the connecting end;

[0006] A positioning seat is arranged on the side end surface, a brake pad is arranged on the positioning seat, and the positioning seat is arranged around the outside of the connecting end;

[0007] At least two brake blocks are arranged on the transmission wheel, one end of the brake block is rotatably connected to the transmission wheel, and the other end of the brake block is connected to an elastic member, and the elastic member pulls the brake block toward the axial direction of the transmission wheel. The brake pad is located inside the brake block and contacts and cooperates with the brake block.

[0008] In several embodiments, the transmission wheel is provided with an installation groove on the side facing the main body, a connecting seat is protruding from the installation groove, the connecting seat is coaxially arranged with the transmission wheel, the brake block is symmetrically arranged on the outside of the connecting seat, and the connecting seat is arranged on the inside of the positioning seat.

[0009] In several embodiments, a positioning ring is disposed around the outer side of the connecting seat, and the positioning ring is in contact with the brake pad.

[0010] In several embodiments, the positioning ring is located below the brake shoe.

[0011] In several embodiments, the brake block includes an inner curved surface and an outer side surface that are arranged opposite to each other, and the inner curved surface is used to contact and cooperate with the side curved surface of the brake pad.

[0012] In several embodiments, a plurality of positioning members are provided at the edge of the mounting groove, and when the transmission wheel rotates, the brake block can overcome the pulling force of the elastic member and rotate in the direction of the positioning member until the outer side surface abuts against the positioning member.

[0013] In several embodiments, at least two mounting posts are disposed in the mounting groove, and the mounting posts are used for winding and connecting the elastic member.

[0014] In several embodiments, a limiting protrusion is disposed on the outer side of the mounting column, the limiting protrusion abuts against one end of the elastic member, and the other end of the elastic member is connected to the brake block.

[0015] In several embodiments, the elastic member is a torsion spring.

[0016] And, a snowplow including the above brake structure.

[0017] The utility model has the following beneficial effects:

[0018] The utility model can realize normal operation and braking of the auger by centrifugal means through the cooperation between the brake pad, the brake block and the elastic member. The overall structure is simple and stable to use, the braking cost is reduced, and the service life of the motor is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0020] Figure 1 The partially exploded structure of the brake structure of the snowplow in Example 1 is schematically shown;

[0021] Figure 2 Schematically shows Figure 1 The enlarged structure of the middle transmission wheel position. DETAILED DESCRIPTION

[0022] Below, the embodiments of the present invention are described in detail. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the present invention for protection, but merely represents selected embodiments of the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0024] The terms used herein are intended to explain the embodiments and are not intended to limit and / or define the present invention.

[0025] Example 1

[0026] like Figure 1-Figure 2 As shown, the snow sweeper in this embodiment mainly includes a corresponding brake structure, which is mainly composed of a main body 10, an auger 20, a motor, a drive wheel 30, a brake pad 13, a brake block 40 and an elastic member 50. The auger 20 is arranged in the main body 10, and the main body 10 has a side end face 11. One end of the auger 20 extends to the outside of the side end face 11 and forms a connecting end 21. A drive wheel 30 is arranged on the connecting end 21. The drive wheel 30 is a pulley structure here, which is linked to the output end of the motor through a belt drive, thereby driving the movement of the auger 20.

[0027] Specifically, a positioning seat 12 is provided on the side end surface 11, and a brake pad 13 is provided on the positioning seat 12. The positioning seat 12 is arranged around the outside of the connecting end 21. At least two brake blocks 40 are provided on the transmission wheel 30. One end of the brake block 40 is rotatably connected to the transmission wheel 30, and the other end of the brake block 40 is connected to the elastic member 50, which is generally in an arc plate-shaped structure. The elastic member 50 pulls the brake block 40 toward the axial direction of the transmission wheel 30, and the brake pad 13 is located on the inner side of the brake block 40 and contacts and cooperates with the brake block 40.

[0028] Among them, a circular installation groove 31 is provided on the side of the transmission wheel 30 facing the main body 10, and an annular connecting seat 32 is protruded in the installation groove 31. The connecting seat 32 is coaxially arranged with the transmission wheel 30, and the brake block 40 is symmetrically arranged on the outside of the connecting seat 32, and the connecting seat 32 is arranged on the inside of the positioning seat 12, and the two are coaxially arranged.

[0029] Of course, a transfer column is provided in the installation groove 31 for one end of the brake shoe 40 to penetrate into to realize rotational connection.

[0030] In addition, a positioning ring 33 is arranged around the outer side of the connecting seat 32, and the positioning ring 33 contacts and cooperates with the brake pad 13. The positioning ring 33 is located below the brake block 40. Here, the brake pad 13 and the positioning ring 33 are coaxially arranged and the inner wall of the lower end is in contact with each other, so that the brake pad 13 is positioned, installed and fixed.

[0031] Furthermore, the brake block 40 includes an inner curved surface 41 and an outer side surface 42 which are arranged opposite to each other. The inner curved surface 41 is used to contact and cooperate with the side curved surface of the brake pad 13. At least a part of the inner curved surface 41 is in contact with the side curved surface of the brake pad 13 to ensure the friction braking effect.

[0032] In addition, a plurality of positioning members 34 are arranged at the edge of the mounting groove 31. When the transmission wheel 30 rotates, the brake block 40 can overcome the pulling force of the elastic member 50 and rotate in the direction of the positioning member 34 until the outer side surface 42 abuts against the positioning member 34. The positioning member 34 is generally L-shaped and has a step surface, and the brake block 40 is limited by the step surface.

[0033] In addition, the elastic member 50 here adopts a torsion spring structure, and at least two mounting columns 35 are arranged in the mounting groove 31. The mounting columns 35 are used for the elastic member 50 to be wound and connected. A limiting protrusion 36 is arranged on the outer side of the mounting column 35. The limiting protrusion 36 abuts against one end of the elastic member 50, and the other end of the elastic member 50 is connected to the brake block 40, thereby ensuring the tension provided by the elastic member 50.

[0034] When the utility model is in use, when the auger 20 is running at high speed, the brake block 40 will overcome the pulling force provided by the elastic member 50 and rotate outward due to the effect of centrifugal force and then separate from the brake pad 13. When the switch is closed, the auger 20 and the motor rotate downward, the centrifugal force of the brake block 40 is reduced, and the brake block 40 rotates back under the action of the elastic member 50 until it contacts and rubs against the brake pad 13, thereby accelerating the stop time of the auger 20 and achieving rapid braking.

[0035] The examples shown in the utility model, the embodiments and special forms of the representation have been shown and described in detail in the drawings and the foregoing description, and should also be considered to be illustrative rather than restrictive. The description of special features in one embodiment does not mean that those special features are necessarily limited to that embodiment. The features of one embodiment can be used in combination with the features of other embodiments, which can be understood by those of ordinary skill in the art, whether or not explicitly described in this way. Exemplary embodiments have been shown and described, and all changes and improvements fall into the spirit of the utility model and are expected to be protected.

Claims

1. A brake structure for a snowplow, comprising a main body (10), wherein an auger (20) is arranged in the main body (10), characterized in that: The main body (10) has a side end surface (11), one end of the auger (20) extends to the outside of the side end surface (11) and forms a connecting end (21), and a transmission wheel (30) is arranged on the connecting end (21); A positioning seat (12) is arranged on the side end surface (11), a brake pad (13) is arranged on the positioning seat (12), and the positioning seat (12) is arranged around the outside of the connecting end (21); At least two brake blocks (40) are arranged on the transmission wheel (30), one end of the brake block (40) is rotatably connected to the transmission wheel (30), and the other end of the brake block (40) is connected to an elastic member (50), and the elastic member (50) pulls the brake block (40) toward the axial direction of the transmission wheel (30), and the brake pad (13) is located inside the brake block (40) and contacts and cooperates with the brake block (40).

2. A snow sweeper brake structure according to claim 1, characterized in that: The transmission wheel (30) is provided with a mounting groove (31) on the side facing the main body (10), a connecting seat (32) is protruding in the mounting groove (31), the connecting seat (32) is coaxially arranged with the transmission wheel (30), the brake block (40) is symmetrically arranged on the outside of the connecting seat (32), and the connecting seat (32) is arranged on the inside of the positioning seat (12).

3. A snow sweeper brake structure according to claim 2, characterized in that: A positioning ring (33) is arranged around the outer side of the connecting seat (32), and the positioning ring (33) is in contact with and fits with the brake pad (13).

4. A snow sweeper brake structure according to claim 3, characterized in that: The positioning ring (33) is located below the brake block (40).

5. The brake structure of a snow sweeper according to claim 2, characterized in that: The brake block (40) comprises an inner curved surface (41) and an outer side surface (42) which are arranged opposite to each other, and the inner curved surface (41) is used for contacting and cooperating with the side curved surface of the brake shoe (13).

6. The brake structure of a snow sweeper according to claim 5, characterized in that: A plurality of positioning members (34) are arranged at the edge of the installation groove (31), and when the transmission wheel (30) rotates, the brake block (40) can overcome the pulling force of the elastic member (50) and rotate in the direction of the positioning member (34) until the outer side surface (42) abuts against the positioning member (34).

7. The brake structure of a snow sweeper according to claim 2, characterized in that: At least two installation columns (35) are arranged in the installation groove (31), and the installation columns (35) are used for the elastic member (50) to be wound and connected.

8. The brake structure of a snow sweeper according to claim 7, characterized in that: A limiting protrusion (36) is arranged on the outer side of the mounting column (35), the limiting protrusion (36) abuts against one end of the elastic member (50), and the other end of the elastic member (50) is connected to the brake block (40).

9. The brake structure of a snow sweeper according to claim 8, characterized in that: The elastic member (50) is a torsion spring.

10. A snow sweeper, characterized in that: The invention comprises a brake structure for a snowplow as described in any one of claims 1 to 9.

Images