Wet-type braking integral wheel edge structure

Abstract

The utility model discloses a wet-type braking integral wheel edge structure which comprises an input chain wheel, a rectangular spring and a brake pad, an output shaft disc is connected to the inner side of the input chain wheel through a spline, a braking sealing cover is installed on the left side of the input chain wheel, the wet-type braking integral wheel edge structure further comprises a braking shell and a sealing mechanism, and the braking shell is installed on the left side of the braking sealing cover. The sealing mechanism comprises an inner sealing ring, an outer sealing ring, an inner baffle ring and an outer baffle ring, a brake disc seat is installed in the brake shell, an adjusting sleeve is installed on the inner side of the input chain wheel, a guide stud is installed on the right side of a rectangular spring, and the rectangular spring is located between a piston and a step of the guide stud. According to the wet-type braking integral wheel edge structure, the output shaft disc and the output chain wheel are fastened into a whole through the adjusting sleeve and the bolt set, the anti-loosening effect is achieved, the stability of the wheel edge assembly is guaranteed, the sealing performance of the wheel edge structure is guaranteed through the sealing mechanism, leakage is prevented, the wheel edge structure is convenient to disassemble and assemble, and therefore overhauling is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel edge structures, in particular to a wet brake integral wheel edge structure. Background Art

[0002] In mining operations, the wheel output is the part with the highest probability of maintenance of the whole bridge. Due to environmental restrictions, the maintenance site is remote and there are few tools available. Simplifying maintenance and facilitating assembly and adjustment is the priority for mining operations. The geological conditions of mines are complex, various ores are hard and sharp, slag is trivial and difficult to deal with, there is a lot of dust, and the construction conditions are bad. This working environment causes serious wear and tear on the brake system. The existing rear axle wheel assembly of graders adopts two structures. One is a clamp-type brake, where the friction plate and brake disc are directly exposed to the outside and are quickly damaged by contact with dust particles; the other is a drum brake with a poor heat dissipation effect, dust is easy to enter the brake drum and difficult to discharge, and it is difficult to disassemble and not conducive to maintenance; the above two brake structures will also seriously reduce the braking effect in a wet and muddy environment. The above defects bring safety hazards to the mining operations of graders. In addition, both wheel assemblies are installed on the wheel hub and the mounting box through two bearings, respectively, and the processing and installation are relatively complicated. Therefore, a wheel structure with more stable and long-lasting braking, safe and reliable, and easy to assemble and maintain is needed.

[0003] For example, the patent document with the authorization announcement number CN217108127U discloses an independent wheel side assembly of the rear axle of a grader, including a housing, an output shaft, a wheel hub, a first bearing, and a second bearing. The output shaft is installed on the housing through the first bearing and the second bearing. A sprocket is installed on the output shaft, and the other end of the sprocket is limited by a locking nut. The locking nut is fixedly connected to the output shaft in the axial direction by a first screw. A chain is connected to the sprocket for transmission, a brake disc is fixedly connected to the wheel hub, a caliper brake assembly is installed on the outer side of the brake disc, an oil collecting pipeline is arranged inside the housing, one end of the oil collecting pipeline is connected to the first bearing and the second bearing, the outer side of the output shaft is fixedly connected to the output disc by a fixing bolt, and a first pin shaft and a second pin shaft are connected between the output disc and the output shaft. The output shaft has the advantages of high load-bearing capacity, long bearing service life, automatic lubrication, reliable fastening, and good sealing.

[0004] However, the friction plate and brake disc are directly exposed to the outside, which can cause damage quickly due to contact with dust particles, and the installation and processing are complicated, and it is not easy to disassemble, assemble and repair, which has poor practicality. Therefore, we propose a wet brake integral wheel edge structure to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a wet brake integral wheel rim structure to solve the problems raised in the above background technology that the existing wet brake integral wheel rim structure has friction plates and brake discs directly exposed to the outside, is damaged quickly by contact with dust particles, is complicated to install and process, is not easy to disassemble, assemble and repair, and has poor practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wet brake integral wheel edge structure, comprising an input sprocket, a rectangular spring and a brake pad, the inner side of the input sprocket is splined with an output shaft disc, a brake cover is installed on the left side of the input sprocket, and also comprises a brake housing and a sealing mechanism, a brake housing is installed on the left side of the brake cover, a piston is installed inside the brake housing, the sealing mechanism comprises an inner sealing ring, an outer sealing ring, an inner retaining ring and an outer retaining ring, a brake disc seat is installed inside the brake housing, an adjustment sleeve is installed on the inner side of the input sprocket, and a bolt group is installed on the outer side of the adjustment sleeve;

[0007] The rectangular spring is installed inside the brake housing, a guide stud is installed on the right side of the rectangular spring, the rectangular spring and the guide stud are fastened to the brake housing through the piston, and the rectangular spring is positioned between the piston and the guide stud step.

[0008] Preferably, the brake housing and the brake cover form a rotating structure through a positioning bearing and an output shaft disc.

[0009] Preferably, the piston gap is installed in the brake housing, and an inner sealing ring, an outer sealing ring plus an inner retaining ring and an outer retaining ring are installed in the inner and outer grooves of the piston, and the longitudinal sections of the inner sealing ring and the outer sealing ring are O-shaped.

[0010] Preferably, a pin is fixedly installed in the mounting hole of the brake housing, and the brake pad is floatingly installed in the brake housing via the pin.

[0011] Preferably, the outer shaft and inner hole of the brake disc seat are both splines, and the splines of the outer shaft of the brake disc seat are equipped with friction plates.

[0012] Preferably, the brake cover and the brake housing are fastened by bolts to form a closed cavity II, and a skeleton oil seal is installed on the right side of the cavity II, and a combined oil seal is installed between the brake housing and the output shaft disc.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the wet brake integral wheel edge structure;

[0014] 1. Set the adjustment sleeve and bolt group, design the hardened adjustment sleeve and install it between the output shaft and the output sprocket. Tighten the bolt group to make the bearing, output shaft, adjustment sleeve and bolt group fastened together, play a role in preventing loosening, and make the wheel assembly stable;

[0015] 2. Set up a sealing mechanism. The skeleton oil seal realizes the sealing of the right side of the cavity. The combined oil seal is installed between the brake housing and the output shaft disc to realize the sealing of the left side of the cavity. The O-ring and retaining ring are installed in the inner and outer grooves of the piston to ensure the sealing of the wheel side structure and prevent leakage.

[0016] 3. A detachable wheel side structure is set up, and the input sprocket is spline-connected with the output shaft disc. The power is transmitted to the output shaft disc through the input sprocket through the spline. The spline connection is easy to process and assemble, and has strong interchangeability. The brake cover and the brake housing are fastened with bolts, which is convenient for disassembly and assembly, thereby facilitating maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front view cutaway structure of the utility model;

[0019] Figure 3 This is an enlarged structural diagram of the utility model at A;

[0020] Figure 4 This is an enlarged structural diagram of point B of the utility model.

[0021] In the figure: 1. input sprocket; 2. output shaft disc; 3. brake cover; 4. brake housing; 5. piston; 6. inner sealing ring; 7. outer sealing ring; 8. inner retaining ring; 9. outer retaining ring; 10. rectangular spring; 11. guide stud; 12. pin shaft; 13. brake pad; 14. brake disc seat; 15. friction plate; 16. skeleton oil seal; 17. combined oil seal; 18. adjustment sleeve; 19. bolt group. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a wet brake integral wheel edge structure, including an input sprocket 1, an output shaft disc 2, a brake cover 3, a brake housing 4, a piston 5, an inner seal ring 6, an outer seal ring 7, an inner retaining ring 8, an outer retaining ring 9, a rectangular spring 10, a guide stud 11, a pin 12, a brake pad 13, a brake disc seat 14, a friction plate 15, a skeleton oil seal 16, a combined oil seal 17 and an adjustment sleeve 18, such as Figure 1 and Figure 3 As shown, an output shaft disc 2 is installed on the inner side of the input sprocket 1, and the input sprocket and the output shaft disc 2 are spline-connected. The power is transmitted to the output shaft disc 2 via the input sprocket 1 through the spline. The spline connection is easy to process and assemble, and has strong interchangeability. A brake cover 3 is installed on the left side of the input sprocket 1, and a brake housing 4 is installed on the left side of the brake cover 3. The brake housing 4 and the brake cover 3 are connected to the output shaft disc 2 through a positioning bearing, and can realize relative rotation.

[0024] The piston 5 is installed in the brake housing 4 with a gap, and the inner sealing ring 6, the inner retaining ring 8, the outer sealing ring 7 and the outer retaining ring 9 are installed in the inner and outer grooves of the piston 5 respectively. The inner sealing ring 6, the outer sealing ring 7 plus the inner retaining ring 8 and the outer retaining ring 9 are installed in the inner and outer grooves of the piston 5. The longitudinal sections of the inner sealing ring 6 and the outer sealing ring 7 are both O-shaped. The piston 5, the inner sealing ring 6, the inner retaining ring 8, the outer sealing ring 7 and the outer retaining ring 9 realize the sealing cavity I with the brake housing 4;

[0025] Eight rectangular springs 10 and guide studs 11 are designed to pass through the piston 5 and be fastened to the brake housing 4. The rectangular spring 10 is positioned between the steps of the piston 5 and the guide stud 11. Oil is introduced into the oil inlet of the brake housing 4, which can push the piston 5 to move rightward and compress the spring 10 at the same time. After the oil pressure is released, the piston 5 automatically returns to its original position under the action of the rectangular springs. The eight rectangular springs 10 can ensure smooth return and complete brake disengagement.

[0026] like Figure 2 and Figure 4 As shown, the pin shaft 12 is fixed in the mounting hole of the brake housing 4, the brake pad 13 is floatingly mounted in the brake housing 4 through the pin shaft 12, the outer shaft and inner hole of the brake disc seat 14 are splines, the outer shaft splines are installed with friction pads 15, and the inner hole splines are connected to the output shaft disc 2 and stepped;

[0027] The brake cover 3 and the brake housing 4 are bolted together to form a closed cavity II. The piston 5 moves rightward to push the brake pad 13 and the friction pad 15 to move rightward at the same time, and squeezes on the end surface of the brake cover 3 to achieve braking of the output shaft disc 2. The skeleton oil seal 16 seals the right side of the cavity II. The combined oil seal 17 is installed between the brake housing 4 and the output shaft disc 2 to seal the left side of the cavity II, ensuring the sealing effect of the wheel side structure.

[0028] The hardened adjustment sleeve 18 is designed to be installed between the output shaft disc 2 and the output sprocket 1, and the bolt group 19 is tightened to reasonably adjust the bearing clearance and compact the outer end surface of the adjustment sleeve 18, so that the output shaft disc 2, the adjustment sleeve 18 and the bolt group 19 are fastened together. The bolt group 19 is fastened to connect the input sprocket 1 and the output shaft disc 2 through threads. Even if the clearance of the bearing increases after long-term use, the fastening force of the bolt group 19 will not be reduced, which plays a role in preventing loosening, ensuring the stability of the wheel side structure and extending the service life.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wet brake integral wheel edge structure, comprising an input sprocket (1), a rectangular spring (10) and a brake pad (13), wherein the inner side of the input sprocket (1) is spline-connected with an output shaft disc (2), and a brake cover (3) is installed on the left side of the input sprocket (1), characterized in that: It also comprises a brake housing (4) and a sealing mechanism, wherein the brake housing (4) is installed on the left side of the brake cover (3), a piston (5) is installed inside the brake housing (4), the sealing mechanism comprises an inner sealing ring (6), an outer sealing ring (7), an inner retaining ring (8) and an outer retaining ring (9), a brake disc seat (14) is installed inside the brake housing (4), an adjustment sleeve (18) is installed on the inner side of the input sprocket (1), and a bolt group (19) is installed on the outer side of the adjustment sleeve (18); The rectangular spring (10) is installed inside the brake housing (4), and a guide stud (11) is installed on the right side of the rectangular spring (10). The rectangular spring (10) and the guide stud (11) pass through the piston (5) and are fastened to the brake housing (4). The rectangular spring (10) is positioned between the steps of the piston (5) and the guide stud (11).

2. A wet brake integral wheel rim structure according to claim 1, characterized in that: The brake housing (4) and the brake cover (3) form a rotating structure through a positioning bearing and an output shaft disc (2).

3. The wet brake integral wheel rim structure according to claim 1, characterized in that: The piston (5) is installed in a brake housing (4) with a clearance, and an inner sealing ring (6), an outer sealing ring (7) plus an inner retaining ring (8) and an outer retaining ring (9) are installed in the inner and outer grooves of the piston (5). The longitudinal sections of the inner sealing ring (6) and the outer sealing ring (7) are O-shaped.

4. A wet brake integral wheel rim structure according to claim 1, characterized in that: A pin shaft (12) is fixedly installed in the mounting hole of the brake housing (4), and the brake pad (13) is floatingly installed in the brake housing (4) via the pin shaft (12).

5. The wet brake integral wheel rim structure according to claim 1, characterized in that: The outer shaft and inner hole of the brake disc seat (14) are both splined, and the outer shaft spline of the brake disc seat (14) is equipped with a friction plate (15).

6. A wet brake integral wheel rim structure according to claim 4, characterized in that: The brake cover (3) and the brake housing (4) are fastened by bolts to form a closed cavity II, and a skeleton oil seal (16) is installed on the right side of the cavity II. A combined oil seal (17) is installed between the brake housing (4) and the output shaft disc (2).

Images