Cooling and lubricating mechanism for wet brake of underground dumper

Abstract

The utility model relates to the field of wet brakes, and discloses an underground dumper wet brake cooling and lubricating mechanism which comprises a shell, a circulating pipe is fixedly connected to the inner side wall of the shell, a mounting seat is fixedly connected to the tail end of the circulating pipe, and a liquid storage tank is detachably mounted on the surface of the mounting seat through a positioning assembly. A circulating pump is arranged on the surface of the liquid storage tank, a filling port is formed in the top end of the outer wall of the liquid storage tank, the positioning assembly comprises a through groove formed in the front side of a bottom side plate of the liquid storage tank, one end of a shifting block enters the bottom side plate through the through groove and is fixedly connected with a trapezoidal block, and the other end of the shifting block is exposed out of the through groove. According to the utility model, the design of the positioning assembly enables the disassembly of the liquid storage tank and the mounting seat to be simple and rapid, when cooling liquid needs to be supplemented or parts need to be replaced, the disassembly can be easily completed only by operating the shifting block, and the filling port at the top end of the liquid storage tank facilitates the supplement of the cooling liquid.

Description

Technical Field

[0001] The utility model relates to the field of wet brakes, in particular to a cooling and lubricating mechanism for a wet brake of an underground dump truck. Background Art

[0002] During the operation of underground dump trucks, wet brakes play a vital role, and the stability of their performance is directly related to the safe braking and efficient operation of the vehicle.

[0003] Due to the harsh underground working environment, wet brakes generate a lot of heat when working. If the heat is not dissipated in a timely and effective manner and good lubrication is not performed, the brake temperature will be too high, which will affect the braking effect and may even cause serious safety accidents such as brake failure.

[0004] At present, the existing underground dump truck wet brake cooling and lubrication device has some shortcomings: on the one hand, the structural design of some cooling and lubrication devices is not conducive to the rapid replenishment of coolant and replacement of components. When the device needs to be maintained, it takes a lot of time and energy, which reduces the vehicle's utilization efficiency. On the other hand, the heat dissipation efficiency of some devices is not high, and the brake temperature cannot be reduced in a timely and effective manner, resulting in the brake easily overheating during long-term or high-intensity work, affecting the braking performance and service life. Therefore, a cooling and lubrication mechanism for the wet brake of an underground dump truck is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a cooling and lubricating mechanism for a wet brake of an underground dump truck, aiming to improve the problem that the structural design of some cooling and lubricating devices in the prior art is not conducive to rapid replenishment of coolant and replacement of components.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: a cooling and lubricating mechanism for a wet brake of an underground dump truck, comprising a housing, a circulation pipe fixedly connected to the inner side wall of the housing, a mounting seat fixedly connected to the end of the circulation pipe, a liquid storage tank detachably mounted on the surface of the mounting seat via a positioning assembly, a circulation pump provided on the surface of the liquid storage tank, a filling port provided at the top end of the outer wall of the liquid storage tank; an interface provided on the liquid storage tank for connecting with the communication port of the mounting seat; the interface provided on the back side of the liquid storage tank;

[0007] The cam is secured to the bottom of the L-shaped plate and has a second end secured to the bottom of the L-shaped plate so that the cam can slide in and out of the bottom of the L-shaped plate.

[0008] The mounting seat is provided with a slot which matches the wedge block.

[0009] As a further description of the above technical solution:

[0010] A one-way valve is provided on the back side of the liquid storage tank at the interface, and a sealing ring is provided on the surface of the one-way valve.

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

[0012] An outer side wall of the shell is provided with an empty slot, and the liquid storage tank is installed in the empty slot.

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

[0014] The outer arc surface of the shell is provided with multiple groups of air ducts.

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

[0016] A mounting groove is provided on the surface of the mounting seat, the outer wall of the one-way valve contacts the inner wall of the mounting groove, and the outer wall of the sealing ring contacts the inner wall of the mounting groove of the mounting seat.

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

[0018] 1. In the present invention, the design of the positioning assembly makes the disassembly of the liquid storage tank and the mounting base simple and quick. When it is necessary to add coolant or replace parts, the disassembly can be easily completed by operating the shift block. The filling port on the top of the liquid storage tank facilitates the replenishment of coolant without complicated operating steps.

[0019] 2. In this utility model, the circulation tube is made of copper, which has excellent thermal conductivity and can quickly absorb the heat generated by the brake. A circulation pump drives the coolant to circulate within the circulation tube, removing the heat. At the same time, multiple air ducts on the outer arc surface of the shell allow external air to enter the interior, cooling the shell and circulation tube, forming a highly efficient heat dissipation system. This dual heat dissipation method can effectively reduce the temperature of wet brakes, maintaining the brake temperature within a reasonable range even under long-term or high-intensity braking operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a cooling and lubricating mechanism for a wet brake of an underground dump truck proposed in the present invention;

[0021] Figure 2 This is a partial cross-sectional structural diagram of the rear end of the housing of a wet brake cooling and lubrication mechanism for an underground dump truck proposed in the present invention;

[0022] Figure 3 This is a schematic diagram of the mounting base and the liquid storage tank of a wet brake cooling and lubrication mechanism of an underground dump truck proposed in the present invention in a separated state;

[0023] Figure 4 The utility model is a partial cross-sectional structural diagram of the rear end of a liquid storage tank of a wet brake cooling and lubrication mechanism for an underground dump truck.

[0024] Legend:

[0025] 1. Housing; 2. Air duct; 3. Circulation pipe; 4. Liquid storage tank; 5. Positioning assembly; 51. Shift block; 52. Trapezoidal block; 53. L-rod; 54. Limit spring; 55. Wedge; 6. Circulation pump; 7. Filling port; 8. Mounting seat; 9. Sealing ring; 10. One-way valve. DETAILED DESCRIPTION

[0026] 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.

[0027] Reference Figure 1 - Figure 3The outer wall of the liquid storage tank 4 is provided with a filling port 7, through which the coolant in the liquid storage tank 4 can be replenished.

[0028] Reference Figure 3 and Figure 4 The positioning assembly 5 includes a through slot provided on the positive side of the bottom side plate of the liquid storage tank 4. One end of the shift block 51 enters the bottom side plate through the through slot and is fixedly connected to a trapezoidal block 52. By shifting the shift block 51, the trapezoidal block 52 can be synchronously driven to move, thereby realizing the installation and removal of the liquid storage tank 4. The other end of the shift block 51 is located outside the through slot; the oblique waists on both sides of the trapezoidal block 52 are slidably contacted with the ends of the vertical parts of the L rods 53. Through the movement of the trapezoidal block 52, the two groups of L rods 53 can be moved at the inclined surface, so that the wedge blocks 55 corresponding to the two groups of L rods 53 are separated from each other to disengage from the card slot of the mounting seat 8. The horizontal part of the L rod 53 is away from the end of the trapezoidal block 52 and is fixed to the wedge block 55 by a connecting rod; one end is fixedly connected, and the other end of the connecting rod is fixed with a wedge block 55. The two wedge blocks 55 are exposed on the back side of the bottom side plate, and The interface is located between the two wedge blocks 55; the bottom side plate is respectively processed with a first cavity for the trapezoidal block 52 to move horizontally along its two bottom directions, a second cavity for the L rod 53 to move along its vertical direction, and a third cavity for the wedge block 55 to vertically enter and exit the bottom side plate. One end of the limit spring 54 is fixed in the third cavity, and the other end is fixedly connected to the wedge block 55. The function of the limit spring 54 is to automatically reset the position of the wedge block 55 after being moved by the L rod 53, thereby automatically resetting the wedge block 55, the L rod 53, the trapezoidal block 52 and the shift block 51, and the limit spring 54 is sleeved on the outside of the connecting rod, and a slot matching the wedge block 55 is opened on the mounting seat 8. By opening a slot that fits the wedge block 55 on the mounting seat 8, the liquid storage tank 4 can be installed as a whole on the outside of the mounting seat 8, so that the circulation pipe 3 is connected and fixed to the one-way valve 10 of the liquid storage tank 4.

[0029] Reference Figure 2 - Figure 4, a one-way valve 10 is provided at the interface on the back side of the liquid storage tank 4. The one-way valve 10 is a prior art. Two groups are provided on the surface of the liquid storage tank 4, one group for liquid inlet and one group for liquid outlet, thereby preventing the backflow of the coolant. A sealing ring 9 is provided on the surface of the one-way valve 10. By providing a sealing ring 9, the mounting seat 8 can be installed inside the liquid storage tank 4 for cooling circulation, and the sealing effect of its connection can be increased to avoid leakage at the gap. The outer arc surface of the shell 1 is provided with multiple groups of air ducts 2. By providing multiple groups of air ducts 2 on the outer arc surface of the shell 1, the external wind can enter the inner side of the shell 1 through the air duct 2, thereby dissipating heat and ventilation inside the shell 1 while also dissipating heat and cooling the circulation pipe 3. The surface of the mounting seat 8 is provided with a mounting groove, the outer wall of the one-way valve 10 is in contact with the inner wall of the mounting groove, and the outer wall of the sealing ring 9 is in contact with the inner wall of the mounting groove of the mounting seat 8.

[0030] Working principle: When installing the liquid reservoir 4 to the outer wall of the mounting seat 8, first place the mounting seat 8 in the appropriate position of the liquid reservoir 4 so that the wedge 55 is aligned with the slot of the mounting seat 8. At this time, the inner side of the mounting seat 8 will squeeze the arc surface of the wedge 55, allowing it to move on the inner wall of the liquid reservoir 4 and compress the limit spring 54. When the mounting seat 8 is fully placed in place, the wedge 55 returns to its original shape under the elastic action of the limit spring 54, and is snapped into the slot of the mounting seat 8, fixing the mounting seat 8 to the position of the inner wall of the liquid reservoir 4. At the same time, the position of the liquid reservoir 4 in the empty slot of the shell 1 is also supported and fixed. Then, the coolant inside the liquid reservoir 4 can be replenished through the filling port 7. During the operation of the vehicle, the circulating pump 6 is started, and the coolant begins to circulate between the liquid reservoir 4 and the circulation pipe 3 under the drive of the circulating pump 6, absorbing the heat of the shell 1 and the brake.

[0031] When it is necessary to disassemble the liquid storage tank 4 or to inspect and maintain its internal components, the positioning assembly 5 is operated to disassemble it and the two sets of shift blocks 51 are pushed at the same time. The shift block 51 drives the trapezoidal block 52 to move on the inner wall of the liquid storage tank 4. When the trapezoidal block 52 moves, the inclined guide grooves on both sides push the L rod 53 to move outward, and the L rod 53 drives the wedge block 55 to move outward synchronously, compressing the limit spring 54, so that the wedge block 55 disengages from the slot of the mounting seat 8. At this time, the mounting seat 8 is no longer fixed, and the liquid storage tank 4 can be taken out from its surface, and then the liquid storage tank 4 can be disassembled or related components can be inspected. After loosening the shift block 51, the wedge block 55 returns to its initial position under the action of the limit spring 54, ready for the next installation operation.

[0032] During the coolant circulation process, the one-way valve 10 ensures that the coolant can only flow in the specified direction, that is, from the reservoir 4 through the outlet one-way valve 10 into the circulation pipe 3, and then through the inlet one-way valve 10 back to the reservoir 4, preventing the coolant from flowing back and ensuring the normal operation of the circulation system. The sealing ring 9 acts as a seal at the connection between the mounting base 8 and the reservoir 4 and at the contact between the one-way valve 10 and the mounting groove of the mounting base 8. The sealing of the sealing ring 9 effectively prevents the coolant from leaking from the gap during the circulation process, ensuring the sealing and reliability of the cooling and lubrication mechanism, and avoiding the reduction of cooling effect or other malfunctions caused by coolant leakage. At the same time, during vehicle operation, external air will flow. When air flows through the outer curved surface of the housing 1, due to the presence of the air duct 2, the air will enter the inner side of the housing 1 through the air duct 2. The air entering the inner side of the housing 1 exchanges heat with the circulation pipe 3 and the hot air inside the housing 1, removing heat, and achieving heat dissipation and ventilation for the interior of the housing 1 and the circulation pipe 3, further improving the heat dissipation efficiency of the entire cooling and lubrication mechanism, and helping to maintain the wet brake within an appropriate operating temperature range.

[0033] 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 cooling and lubricating mechanism for a wet brake of an underground dump truck, comprising a housing (1), characterized in that: The inner side wall of the housing (1) is fixedly connected to a circulation pipe (3), the end of the circulation pipe (3) is fixedly connected to a mounting seat (8), the surface of the mounting seat (8) is detachably mounted with a liquid storage tank (4) via a positioning assembly (5), the surface of the liquid storage tank (4) is provided with a circulation pump (6), and the top end of the outer wall of the liquid storage tank (4) is provided with a filling port (7); the liquid storage tank (4) is provided with an interface connected to the communication port of the mounting seat (8); the interface is provided on the back side of the liquid storage tank (4); The positioning assembly (5) includes a through slot provided at the front side of the bottom side plate of the liquid storage tank (4); one end of the shift block (51) enters the bottom side plate through the through slot and is fixedly connected to a trapezoidal block (52); the other end of the shift block (51) is located outside the through slot; both sides of the trapezoidal block (52) are in sliding contact with the ends of the vertical portion of the L-rod (53); the horizontal portion of the L-rod (53) is fixed to the wedge block (55) via a vertical connecting rod, and the two wedge blocks are connected to the vertical portion of the L-rod (53) and the vertical portion of the L-rod (53). (55) is exposed on the back side of the bottom side plate, and the interface is located between the two wedge blocks (55); the bottom side plate is respectively processed with a first cavity for the trapezoidal block (52) to move in the direction of its two bottoms, a second cavity for the L rod (53) to move in the direction of its vertical portion, and a third cavity for the wedge block (55) to vertically enter and exit the bottom side plate, one end of the limit spring (54) is fixed in the third cavity, and the other end is fixedly connected to the wedge block (55), and the limit spring (54) is sleeved on the outside of the connecting rod; The mounting seat (8) is provided with a slot that matches the wedge block (55).

2. The underground dump truck wet brake cooling and lubrication mechanism according to claim 1, characterized in that: A one-way valve (10) is provided on the back side of the liquid storage tank (4) at the interface, and a sealing ring (9) is provided on the surface of the one-way valve (10).

3. The underground dump truck wet brake cooling and lubrication mechanism according to claim 1, characterized in that: An outer side wall of the housing (1) is provided with an empty slot, and the liquid storage tank (4) is installed in the empty slot.

4. The underground dump truck wet brake cooling and lubrication mechanism according to claim 1, characterized in that: The outer arc surface of the shell (1) is provided with multiple groups of air ducts (2).

5. The underground dump truck wet brake cooling and lubrication mechanism according to claim 2, characterized in that: A mounting groove is provided on the surface of the mounting seat (8), the outer wall of the one-way valve (10) contacts the inner wall of the mounting groove, and the outer wall of the sealing ring (9) contacts the inner wall of the mounting groove of the mounting seat (8).

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