Wet brake assembly mounting mechanism of underground dumper

Abstract

The utility model relates to the technical field of underground dumper wet brakes, and discloses an underground dumper wet brake assembly mounting mechanism which comprises a shell bottom plate, a piston connecting piece is detachably mounted on the side wall of the inner side of the shell bottom plate, and a quick dismounting mechanism is arranged on the inner wall of the piston connecting piece and used for quickly dismounting a sealing ring. The quick dismounting mechanism comprises a bottom ring, a positioning ring is fixedly connected to the outer arc face of the piston connecting piece, a gap is formed between the bottom of the positioning ring and the top of the bottom ring and used for containing a sealing ring, and a movable space for containing an adaptive ring is formed in the positioning ring. According to the utility model, when the sealing ring needs to be replaced, the two groups of limiting blocks are pinched to move the adaptive ring upwards, so that the contact extrusion between the adaptive ring and the sealing ring is relieved, and the sealing ring is conveniently taken out and disassembled due to the reduction and resetting of the elasticity of the sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of wet brakes for underground dump trucks, in particular to an assembly installation mechanism for wet brakes for underground dump trucks. Background Art

[0002] An underground dump truck is a special transport vehicle used in underground engineering working environments such as underground mines and tunnels. Its main function is to load and transport materials such as ore, slag, construction materials, etc. in underground environments. It is equipped with an automatic dumping compartment, which can easily and quickly unload the carried materials at a designated location.

[0003] The wet brake assembly of an underground dump truck is a braking device installed in the wheel or transmission system of an underground dump truck. It is mainly composed of a brake disc, brake pads, brake cylinder and oil circulation system. In the brake cylinder, a key component of the wet brake assembly, its internal structure plays a vital role in realizing the conversion of braking power. The brake cylinder mainly uses a piston to complete the conversion of hydraulic energy to mechanical energy. When the hydraulic oil in the oil circulation system enters the brake cylinder under pressure, the hydraulic oil will push the piston. This piston is like a power transmission medium. It moves in the housing of the brake cylinder, converting the pressure of the oil into mechanical force, thereby pushing the brake pads closer to the brake disc.

[0004] When the piston is in a state of frequent movement, the sealing ring rubs against the piston and the housing wall constantly. As the use time increases, the surface of the sealing ring will gradually wear out. Once the sealing ring is worn to a certain extent, it will not be able to fit tightly against the piston and the housing wall, resulting in an increase in the sealing gap and hydraulic oil leakage from the gap. At this time, the sealing ring needs to be replaced manually. When installing the sealing ring, the sealing ring is put on the groove of the piston, and then the piston is placed inside the housing. Due to the setting of the sealing ring, the gap between the piston and the inside of the housing is filled. At this time, it is necessary to manually press the piston to complete the installation operation. After long-term work, the sealing ring produces a similar "adsorption" effect between the piston and the housing wall due to the action of pressure and friction. It is difficult to disassemble manually, and it is necessary to use a corresponding method to knock on the outer wall of the piston to remove the piston. However, the knocking and removal operation will cause the risk of damage to the piston or the housing. For this reason, an underground dump truck wet brake assembly installation mechanism is proposed to solve the above problem. Utility Model Content

[0005] In order to remedy the above deficiencies, the present invention provides a wet brake assembly mounting mechanism for an underground dump truck, aiming to improve the risk of damage to the piston or housing caused by removing the sealing ring by knocking in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a wet brake assembly mounting mechanism for an underground dump truck, comprising a housing bottom plate, a brake pad being detachably mounted on the inner side wall of the housing bottom plate, a piston connector being detachably mounted on the inner side wall of the housing bottom plate, and a quick-disassembly mechanism being provided on the inner wall of the piston connector for quickly disassembling a sealing ring;

[0007] The quick-disassembly mechanism includes a bottom ring fixed to the end of the piston connector and a positioning ring arranged on the outer arc surface of the piston connector, a gap is provided at the bottom of the positioning ring and the top of the bottom ring, the gap is used to place a sealing ring, an adapter ring that is movably sleeved on the piston connector is arranged at the gap, and a movable space for accommodating the adapter ring is provided inside the positioning ring, a groove that is adapted to the adapter ring is provided on the inner wall of the bottom ring, the inner wall of the positioning ring is connected to the adapter ring through a connecting spring, the adapter ring is truncated, a through hole that penetrates the positioning ring is arranged on the positioning ring, and the The top of the adapter ring is provided with a guide column that movably cooperates with the through hole, and the top of the guide column is fixed with a support seat, and the inner wall of the support seat is provided with a positioning piece, and the positioning piece includes a return spring, one end of the return spring is fixedly connected to the inner wall of the support seat, and the other end of the return spring is fixedly connected to the limiting block, and a plurality of groups of positioning holes that cooperate with the limiting block are provided on the hole wall of the through hole, and the outer end of the limiting block is inserted into the positioning hole; the top of the support seat is detachably connected to a fixing mechanism, and the fixing mechanism is used to protect the above-mentioned positioning piece and limit the limiting block.

[0008] As a further description of the above technical solution:

[0009] The fixing mechanism includes a guide plate, a bolt passing through the center of the guide plate and threadedly connected, and the guide plate is fixedly connected to the contact plate via a positioning rod;

[0010] The inner wall of the contact plate is fixedly connected to the bottom end of the positioning, the bolt passes through the contact plate and is threadedly engaged with the top end of the support seat, and the bolt is threadedly engaged with the contact plate (10).

[0011] As a further description of the above technical solution:

[0012] Both ends of the guide plate are provided with guide keys, and the hole wall of the through hole is processed with a key groove matched with the guide key.

[0013] As a further description of the above technical solution:

[0014] The limit blocks are provided in two groups, and the bottom end of the contact plate contacts between the two groups of limit blocks.

[0015] As a further description of the above technical solution:

[0016] The limiting block is L-shaped.

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

[0018] 1. In the present invention, the piston connector, positioning ring, adapter ring and bottom ring cooperate with each other, so that when the sealing ring needs to be replaced, the two sets of limit blocks are pinched to move the adapter ring upward, thereby releasing the contact and extrusion between the adapter ring and the sealing ring. Due to the elasticity of the sealing ring itself, it shrinks and resets, so that the purpose of facilitating the removal and disassembly of the sealing ring is achieved.

[0019] 2. In the present invention, by cooperating with each other among the guide plate, contact plate and bolts, after the adapter ring is initially positioned, the guide plate can be installed and the bolts can be screwed so that the contact plate contacts the two sets of limit blocks, thereby completing the fixing operation, avoiding the movement of the limit blocks and improving the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall three-dimensional schematic diagram of the installation mechanism of the wet brake assembly of an underground dump truck proposed by the present utility model;

[0021] Figure 2 This is a schematic diagram of the disassembled housing base plate and piston connector of a wet brake assembly mounting mechanism for an underground dump truck proposed in the present invention;

[0022] Figure 3 This is a disassembled schematic diagram of a piston connector and its positioning ring of a wet brake assembly installation mechanism for an underground dump truck proposed in the present utility model;

[0023] Figure 4 This is an enlarged structural diagram of point A of the installation mechanism of the wet brake assembly of an underground dump truck proposed in the present invention;

[0024] Figure 5 This is a schematic internal cross-sectional view of a positioning ring of a wet brake assembly installation mechanism for an underground dump truck proposed by the present invention.

[0025] Legend:

[0026] 1. Housing base plate; 2. Piston connector; 3. Brake pad; 4. Positioning ring; 5. Adapter ring; 6. Connecting spring; 7. Return spring; 8. Support seat; 9. Limit block; 10. Contact plate; 11. Positioning rod; 12. Guide plate; 13. Bolt; 14. Bottom ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figure 1-Figure 3 The utility model provides an embodiment: a wet brake assembly mounting mechanism for an underground dump truck, comprising a housing bottom plate 1, which is a part of the brake assembly. A brake pad 3 is detachably mounted on the inner side wall of the housing bottom plate 1. The brake pad 3 is provided in multiple groups, so that friction can be generated for braking during use. This is a prior art and will not be explained in detail here. A piston connector 2 is detachably mounted on the inner side wall of the housing bottom plate 1. The piston connector 2 can move in the inner seat of the brake. This is a prior art and will not be explained in detail here. A quick-disassembly mechanism is provided on the inner wall of the piston connector 2 for quickly disassembling the sealing ring.

[0029] Reference Figure 3-Figure 5The quick disassembly mechanism includes a bottom ring 14 fixed to the end of the piston connector 2 and a positioning ring 4 arranged on the outer arc surface of the piston connector 2. The piston connector 2, the bottom ring 14 and the positioning ring 4 are a whole. A gap is set between the bottom of the positioning ring 4 and the top of the bottom ring 14. The gap is used to place the sealing ring. When installing the sealing ring, the sealing ring can be stretched and then sleeved in the gap. An adapter ring 5 that is movable on the piston connector 2 is arranged in the gap, and a movable space for accommodating the adapter ring 5 is set inside the positioning ring 4. The adapter ring 5 The bottom ring 14 is provided with a groove adapted to the adapter ring 5, and the groove is provided to prevent the adapter ring 5 from being separated from the bottom ring 14, and the groove can provide the adapter ring 5 with a certain amount of activity space. The inner wall of the positioning ring 4 is connected to the adapter ring 5 by a connecting spring 6. The adapter ring 5 is truncated cone-shaped, and the truncated cone-shaped adapter ring 5 can adapt to sealing rings of different sizes and can synchronously open the corresponding sealing rings. A through hole is arranged on the positioning ring 4 that penetrates the positioning ring 4, and the adapter ring 5 has a through hole. The top is provided with a guide column that cooperates with the through hole. The movement trajectory of the guide column is consistent with that of the adapter ring 5, and can move vertically inside the through hole. The top of the guide column is fixed with a support seat 8, and the movement trajectories of the two are consistent. A positioning piece is provided on the inner wall of the support seat 8, and the positioning piece includes a return spring 7. One end of the return spring 7 is fixedly connected to the inner wall of the support seat 8, and the other end of the return spring 7 is fixedly connected to the limit block 9. The elasticity of the return spring 7 makes the limit block 9 have the functions of resetting and limiting. A plurality of groups of positioning holes that cooperate with the limit block 9 are provided on the wall of the through hole, and the outer end of the limit block 9 is inserted into the positioning hole; the setting of multiple groups of positioning holes can control the up and down movement distance of the adapter ring 5, so as to adapt to different types of sealing rings. The outer wall of the limit block 9 is slidably connected to the through hole and is contacted with a fixing mechanism. The fixing mechanism is detachably connected to the top of the support seat 8 and is used to protect the above-mentioned positioning piece and limit the limit block 9. The stability of the adapter ring 5 can be enhanced by the setting of the fixing mechanism.

[0030] Reference Figure 3-Figure 5The fixing mechanism includes a guide plate 12, and a bolt 13 is passed through the center of the guide plate 12 and is threadedly connected. The bolt 13 can play a role of limiting and fixing. The guide plate 12 is fixedly connected to the contact plate 10 through the positioning rod 11; the top of the positioning rod 11 is fixedly connected to the bottom end of the guide plate 12, and the inner wall of the contact plate 10 is fixedly connected to the bottom end of the positioning rod 11. The movement trajectories of the contact plate 10, the positioning rod 11 and its guide plate 12 are consistent, and the setting of the positioning rod 11 can make the contact plate 10 and the guide plate 12 have a certain length as a whole, so as to facilitate manual operation. The bottom end of the moving bolt 13 is threadedly connected to the top inner wall of the support seat 8, and the bolt 1 The bottom end of 3 is threadedly connected to the inner wall of the contact plate 10, and the setting of the bolt 13 can thereby perform a certain limiting effect on the support seat 8. Both ends of the guide plate 12 have guide keys, and the hole wall of the through hole is processed with a keyway that matches the guide key. The setting of the keyway and the guide key can achieve a positioning effect. There are two groups of limit blocks 9. The setting of the two limit blocks 9 can make the force on the support seat 8 more uniform. The bottom end of the contact plate 10 contacts between the two groups of limit blocks 9. The limit block 9 is L-shaped. The contact plate 10 contacts the two groups of limit blocks 9 to prevent the limit blocks 9 from moving inward. The L-shaped setting of the limit block 9 is convenient for manual inward pinching to release the limit.

[0031] Working principle: When the relevant personnel need to replace the sealing ring, first turn the bolt 13 to release the limit of the bolt 13 and the support seat 8. When the bolt 13 is disengaged from the support seat 8, the guide plate 12 can be moved upward, and then the fingers can be inserted into the interior of the positioning ring 4, and then the two sets of limit blocks 9 are pinched toward the middle, so that the two sets of limit blocks 9 are moved closer to the middle, thereby releasing the plug-in limit of the limit blocks 9 and the positioning ring 4. At this time, due to the elastic reset of the stretched connecting spring 6, the adapter ring 5 and its support seat 8 move upward, and when When the adapter ring 5 moves upward, it will not contact the inner ring side wall of the sealing ring, and will not squeeze the inner ring of the sealing ring. At this time, due to the elastic reset of the sealing ring itself, the piston connector 2 can be moved upward for quick removal. The operation is simple and convenient. When a new sealing ring needs to be installed, the two sets of limit blocks 9 are pinched to move the adapter ring 5 downward to a certain extent, and the adapter ring 5 is pre-positioned by the limit blocks 9, and then the sealing ring is put on the top of the bottom ring 14 and the bottom of the adapter ring 5 is clamped.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wet brake assembly mounting mechanism for an underground dump truck, comprising a housing bottom plate (1), characterized in that: The inner side wall of the housing bottom plate (1) is detachably mounted with a piston connector (2), and the inner wall of the piston connector (2) is provided with a quick-disassembly mechanism for quickly disassembling the sealing ring; The quick-disassembly mechanism comprises a bottom ring (14) fixed to the end of the piston connector (2) and a positioning ring (4) arranged on the outer arc surface of the piston connector (2); a gap is provided between the bottom of the positioning ring (4) and the top of the bottom ring (14); the gap is used to place a sealing ring; an adapter ring (5) movably sleeved on the piston connector (2) is arranged at the gap; and a movable space for accommodating the adapter ring (5) is provided inside the positioning ring (4); a groove adapted to the adapter ring (5) is provided on the inner wall of the bottom ring (14); the inner wall of the positioning ring (4) is connected to the adapter ring (5) via a connecting spring (6); the adapter ring (5) is in a truncated cone shape; and a spring (6) is provided on the positioning ring (4) to penetrate the positioning ring (5). 4), and the top of the adapter ring (5) is provided with a guide column that movably cooperates with the through hole, the top of the guide column is fixed with a support seat (8), the inner wall of the support seat (8) is provided with a positioning member, the positioning member includes a reset spring (7), one end of the reset spring (7) is fixedly connected to the inner wall of the support seat (8), and the other end of the reset spring (7) is fixedly connected to a limiting block (9), and a plurality of positioning holes that cooperate with the limiting block (9) are provided on the hole wall of the through hole, and the outer end of the limiting block (9) is inserted into the positioning hole; the top of the support seat (8) is detachably connected with a fixing mechanism, and the fixing mechanism is used to protect the above-mentioned positioning member and limit the limiting block (9).

2. The underground dump truck wet brake assembly mounting mechanism according to claim 1, characterized in that: The fixing mechanism comprises a guide plate (12), a bolt (13) passing through the center of the guide plate (12) and being threadedly connected, and the guide plate (12) is fixedly connected to the contact plate (10) via a positioning rod (11); The top end of the positioning rod (11) is fixedly connected to the bottom end of the guide plate (12), the inner wall of the contact plate (10) is fixedly connected to the bottom end of the positioning rod (11), the bolt (13) passes through the contact plate (10) and is threadedly engaged with the top end of the support seat (8), and the bolt (13) is threadedly engaged with the contact plate (10).

3. The underground dump truck wet brake assembly mounting mechanism according to claim 2, characterized in that: Both ends of the guide plate (12) are provided with guide keys, and the hole wall of the through hole is processed with a keyway matched with the guide key.

4. The underground dump truck wet brake assembly mounting mechanism according to claim 2, characterized in that: The limit blocks (9) are provided in two groups, and the bottom end of the contact plate (10) contacts between the two groups of limit blocks (9).

5. The underground dump truck wet brake assembly mounting mechanism according to claim 4, characterized in that: The limiting block (9) is L-shaped.

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