Underground mine car wet brake with good anti-seepage effect

Abstract

The utility model relates to the field of underground mine car braking, and discloses an underground mine car wet brake which is good in anti-leakage effect and comprises a brake shell, protective covers are fixedly connected to the left side and the right side of the brake shell, a sealing mechanism is arranged between the brake shell and the protective covers, and the sealing mechanism comprises a sealing piece. A convex ring is fixedly connected to the left side of the surface of the sealing piece, a groove is formed in the surface of the brake shell, an elastic piece is fixedly connected to the inner wall of the groove, a clamping groove is formed in the outer wall of the convex ring, a slope is arranged on the surface of the convex ring, and a through hole is formed in the surface of the sealing piece. According to the brake shell, the elastic piece is clamped into the clamping groove, so that the friction force between the convex ring and the groove is improved, the stability degree of connection between the convex ring and the groove is further improved, the sealing effect is further improved, and the problem that the brake effect is reduced due to leakage of the brake shell is solved.

Description

Technical Field

[0001] The utility model relates to the field of underground mine car brakes, in particular to an underground mine car wet brake with good anti-leakage effect. Background Art

[0002] Existing wet brakes are all multi-friction plate full-disc brakes, mainly composed of outer friction plates, inner friction plates, pressure plates, pistons, fixed elements, rotating elements, return springs and other parts. Wet brakes usually work in a sealed working environment, which requires the brake structure to have good sealing properties to prevent oil or water from penetrating, thereby ensuring the stability and reliability of the brake.

[0003] However, the existing seal between the brake housing and the protective cover is too simple and cannot effectively prevent oil or water from penetrating, thereby affecting the stability and reliability of the brake. Moreover, since a large amount of heat is generated during the operation of the brake, the pressure on the protective cover increases, which will widen the gap between the protective cover and the brake housing, causing infiltration. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an underground mine car wet brake with good anti-leakage effect.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A wet brake for an underground mine car with good anti-leakage effect comprises a brake body and a brake housing arranged outside the brake body, protective covers are fixedly connected to the left and right sides of the brake housing, a sealing mechanism is arranged between the brake housing and the protective cover, the sealing mechanism comprises a sealing member, a convex ring is fixedly connected to the left side of the surface of the sealing member, a groove is provided on the surface of the brake housing, an elastic member is fixedly connected to the inner wall of the groove, a card slot is provided on the outer wall of the convex ring, a slope is provided on the surface of the convex ring, a sleeve is fixedly connected to the top of the protective cover, and a pressure protection mechanism for adjusting the pressure inside the protective cover is provided inside the sleeve.

[0007] Preferably, threaded holes are provided on the left and right sides of the brake housing, and the brake housing is detachably connected to the protective cover by bolts, and the bolts are threadedly installed inside the threaded holes.

[0008] Preferably, the number of the bolts is set to be multiple, and the multiple bolts are arranged in a ring shape with equal angles at intervals on the surface of the protective cover.

[0009] Preferably, the pressure protection mechanism includes a control rod, which passes through and is slidably installed in the inner wall of the sleeve; the bottom of the control rod is fixedly connected to a piston plate that cooperates with the sleeve; a spring is provided between the piston plate and the top of the sleeve and is sleeved outside the control rod, and an exhaust pipe is provided on the side wall of the sleeve.

[0010] Preferably, a sealing ring is fixedly connected to the bottom of the piston plate.

[0011] Preferably, a limiting ring is provided at the bottom of the sealing ring, and the outside of the limiting ring is fixedly connected to the inner wall of the sleeve.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the present invention, the surface of the seal fits tightly against the brake housing and the protective cover through the cooperation of the seal, the convex ring, the groove, the elastic member, the card slot, the slope, and the through hole, thereby ensuring the sealing effect. The elastic member is snapped into the interior of the card slot, thereby increasing the friction between the convex ring and the groove, thereby increasing the stability of the connection between the convex ring and the groove, further improving the sealing effect, and preventing the problem of reduced braking effect caused by leakage of the brake housing.

[0014] 2. In the present invention, a pressure protection mechanism is provided. When the pressure inside the brake housing is too high due to the heat from braking, the excess gas is discharged from the exhaust pipe to the outside atmosphere, thereby reducing the pressure inside the brake housing, thereby ensuring the stability and reliability of the wet brake during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a right side schematic diagram of the overall three-dimensional structure of the present utility model;

[0016] Figure 2 It is a right side schematic diagram of the overall three-dimensional explosion structure of the present utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the sleeve, pressure protection mechanism and exhaust pipe in the present invention;

[0018] Figure 4 This is a schematic diagram of the three-dimensional explosion structure of the pressure protection mechanism in the utility model;

[0019] Figure 5 This is a schematic diagram of a three-dimensional exploded structure cross-section of the protective cover, bolts, seal, convex ring, and sleeve in the utility model;

[0020] Figure 6 It is a schematic cross-sectional view of the three-dimensional exploded structure of the brake housing, protective cover and sealing mechanism in the present invention.

[0021] Legend:

[0022] 1. Brake housing; 2. Protective cover; 3. Bolt; 4. Threaded hole; 5. Sleeve; 6. Control rod; 7. Piston plate; 8. Spring; 9. Sealing ring; 10. Limiting ring; 11. Exhaust pipe; 12. Wheel rod; 13. Seal; 14. Raised ring; 15. Groove; 16. Elastic member; 17. Slot; 18. Ramp; 19. Through hole. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1 、 Figure 2 、 Figure 6 The utility model provides an embodiment: an underground mine car wet brake with good anti-leakage effect, comprising a brake body and a brake housing 1 arranged outside the brake body, the left and right sides of the brake housing 1 are fixedly connected with a protective cover 2, a sealing layer is provided between the brake housing 1 and the protective cover 2 to improve the sealing, threaded holes 4 are provided on the left and right sides of the brake housing 1, the brake housing 1 is detachably connected to the protective cover 2 by bolts 3, which is convenient for disassembly and maintenance of the protective cover 2 when necessary, the number of bolts 3 is set to multiple, and the multiple bolts 3 are arranged on the surface of the protective cover 2 at equal angles in a ring shape, the bolts 3 are threadedly installed in the inside of the threaded hole 4, the top of the protective cover 2 is fixedly connected with a sleeve 5, and a pressure protection mechanism is provided inside the sleeve 5.

[0025] Reference Figure 2 、 Figure 5 、 Figure 6A sealing mechanism is provided between the brake housing 1 and the protective cover 2, and the sealing mechanism includes a sealing member 13. The surface of the sealing member 13 fits with the surface of the brake housing 1 and the protective cover 2, so that when the brake housing 1 and the protective cover 2 are fixed by the bolts 3, the brake housing 1 and the protective cover 2 are close to each other to squeeze the sealing member 13, thereby improving the sealing effect. A convex ring 14 is fixedly connected to the left side of the surface of the sealing member 13, and a groove 15 is provided on the surface of the brake housing 1 to cooperate with the convex ring 14. An elastic member 16 is fixedly connected to the inner wall of the groove 15 to be in a ring shape. The cross-section of the elastic member 16 is semicircular, and a groove 17 is provided on the outer wall of the convex ring 14 to cooperate with the elastic member 16. The surface of the convex ring 14 is provided with a slope 18 to facilitate the passage of the elastic member 16, and the surface of the seal 13 is provided with a through hole 19 to facilitate the passage of the bolt 3.

[0026] Reference Figure 2 - Figure 4 The pressure protection mechanism includes a control rod 6 arranged in a vertical state. The control rod 6 passes through and is slidably installed on the inner wall of the sleeve 5. The sliding direction of the control rod 6 is up and down. The bottom of the control rod 6 is fixedly connected to a piston plate 7. The piston plate 7 is installed on the inner wall of the sleeve 5. The movement direction of the piston plate 7 is up and down. The piston plate 7 is elastically connected to the inner wall of the sleeve 5 through a spring 8. The spring 8 applies a downward elastic force to the piston plate 7.

[0027] Reference Figure 3 、 Figure 4 The bottom of the piston plate 7 is fixedly connected with a sealing ring 9, which can provide a good sealing effect. A limit ring 10 is provided at the bottom of the sealing ring 9 to limit the lowest position of the control rod 6 to prevent the control rod 6 and the piston plate 7 from detaching from the inside of the sleeve 5. The outside of the limit ring 10 is fixedly connected to the inner wall of the sleeve 5. The right side of the sleeve 5 is fixedly connected with an exhaust pipe 11 arranged in a horizontal state. A wheel rod 12 is provided inside the brake housing 1. The outer wall of the wheel rod 12 fits with the inner wall of the protective cover 2. The wheel rod 12 can be connected to the protective cover 2 through a sealed bearing to ensure sealing.

[0028] Working principle: When in use, the seal 13 is placed between the brake housing 1 and the protective cover 2, and then the bolt 3 is passed through the through hole 19 on the surface of the seal 13 and installed in the threaded hole 4, thereby fixing the brake housing 1 and the protective cover 2 together. The rotation of the bolt 3 makes the brake housing 1 and the protective cover 2 approach each other and squeezes the seal 13, so that the surface of the seal 13 is tightly fitted with the brake housing 1 and the protective cover 2, ensuring the sealing effect;

[0029] When the seal 13 is close to the brake housing 1, the convex ring 14 on the surface of the seal 13 will enter the inside of the groove 15, which has a positioning effect and allows the seal 13 to be installed more accurately at the position where sealing is required, thereby improving the sealing effect. Moreover, when the convex ring 14 enters the groove 15, the elastic member 16 will displace relative to the convex ring 14, and the slope 18 of the convex ring 14 will squeeze the elastic member 16, causing the elastic member 16 to deform, thereby allowing the elastic member 16 to pass through the gap between the convex ring 14 and the groove 15 and enter the inside of the card groove 17, thereby increasing the friction between the convex ring 14 and the groove 15, thereby increasing the stability of the connection between the convex ring 14 and the groove 15, further improving the sealing effect, and preventing the problem of reduced braking effect caused by leakage of the brake housing 1.

[0030] When the pressure inside the brake housing 1 is too high due to the heat of braking, the gas inside the brake housing 1 will squeeze the piston plate 7 and apply an upward pressure to the piston plate 7. At the same time, the spring 8 will apply an elastic force to the piston plate 7 in the opposite direction of the pressure. When the pressure exceeds the elastic force applied by the spring 8 to the piston plate 7, the combined force of the pressure and the elastic force is upward. The piston plate 7 will overcome the elastic force of the spring 8 and move upward under the combined force of the pressure and the elastic force. The upward movement of the piston plate 7 will compress the spring 8. After the spring 8 is compressed, the elastic force applied to the piston plate 7 will increase, thereby balancing the pressure and the elastic force, and then stopping the movement of the piston plate 7.

[0031] When the pressure inside the brake housing 1 further increases, the piston plate 7 will continue to move upward until the pressure and elastic force reach a balanced state. When the pressure inside the brake housing 1 increases to a certain extent and reaches a critical point, the piston plate 7 just moves to the exhaust pipe 11. At this time, the interior of the sleeve 5 and the interior of the exhaust pipe 11 are connected, and the high-pressure gas inside the brake housing 1 will be discharged to the outside atmosphere through the exhaust pipe 11, thereby reducing the pressure inside the brake housing 1 and keeping the air pressure inside the brake housing 1 within a safe range, thereby ensuring the stability and reliability of the wet brake effect during operation.

[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 for an underground mine car with good anti-leakage effect, comprising a brake body and a brake housing (1) arranged outside the brake body, characterized in that: The left and right sides of the brake housing (1) are fixedly connected to protective covers (2), a sealing mechanism is provided between the brake housing (1) and the protective cover (2), the sealing mechanism comprising a sealing member (13), a convex ring (14) is fixedly connected to the left side of the surface of the sealing member (13), a groove (15) is provided on the surface of the brake housing (1), an elastic member (16) is fixedly connected to the inner wall of the groove (15), a clamping groove (17) is provided on the outer wall of the convex ring (14), a slope (18) is provided on the surface of the convex ring (14), a sleeve (5) is fixedly connected to the top of the protective cover (2), and a pressure protection mechanism for regulating the pressure inside the protective cover (2) is provided inside the sleeve (5).

2. The underground mine car wet brake with good anti-leakage effect according to claim 1, characterized in that: Threaded holes (4) are provided on the left and right sides of the brake housing (1). The brake housing (1) is detachably connected to the protective cover (2) via bolts (3), and the bolts (3) are threadedly installed inside the threaded holes (4).

3. The underground mine car wet brake with good anti-leakage effect according to claim 2, characterized in that: The number of the bolts (3) is set to be multiple, and the multiple bolts (3) are arranged in a ring shape at equal angles on the surface of the protective cover (2).

4. The underground mine car wet brake with good anti-leakage effect according to claim 1, characterized in that: The pressure protection mechanism includes a control rod (6), which passes through and is slidably installed in the inner wall of the sleeve (5); the bottom of the control rod (6) is fixedly connected to a piston plate (7) that matches the sleeve (5); a spring (8) is provided between the piston plate (7) and the top of the sleeve (5) and is sleeved outside the control rod (6); and an exhaust pipe (11) is provided on the side wall of the sleeve (5).

5. The underground mine car wet brake with good anti-leakage effect according to claim 4, characterized in that: A sealing ring (9) is fixedly connected to the bottom of the piston plate (7).

6. The underground mine car wet brake with good anti-leakage effect according to claim 5, characterized in that: A limiting ring (10) is provided at the bottom of the sealing ring (9), and the exterior of the limiting ring (10) is fixedly connected to the inner wall of the sleeve (5).

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