Brake

Abstract

The present invention discloses a brake, comprising: a bracket, a braking member and a first magnet; a first guiding groove is formed at the lower end of the bracket, a guiding column extends upward on the upper surface of the braking member, the guiding column extends into the first guiding groove, a receiving groove is formed at the lower end of the braking member, and the first magnet is fixed in the receiving groove. The brake of the present invention does not require an additional power source, and utilizes the repulsive force and spring force between magnets to act, so that the traveling mechanism does not need to carry an additional braking energy source. When the traction state is abnormal, the traveling mechanism can brake in place in time and wait for orders, which is safer and more effective, and can avoid the generation and leakage of energy such as light and heat to the greatest extent, and is more suitable for use in extreme environments such as flammable, explosive, dust and smoke.

Description

Technical Field

[0001] The present invention relates to the field of braking technology, and particularly to a brake. Background Art

[0002] With the development of the intelligentization process of mines in our country, a large number of various new types of coal mine automation equipment have been applied. The safety requirements for the braking systems of various walking mechanisms, operating mechanisms, etc. are also increasing.

[0003] Currently, the commonly used automatic brakes include hydraulic brakes, pneumatic brakes, electromagnetic brakes, etc. However, on small-sized equipment, the existing brakes all require a power source, which will increase the load of the walking mechanism and the energy demand of the walking structure. The pneumatic and hydraulic braking systems are relatively large in volume, while the electromagnetic braking system has continuous energy consumption or large instantaneous energy consumption, and is prone to energy leakage such as light and heat, and is not suitable for use in flammable and explosive environments. Summary of the Invention

[0004] An embodiment of the present invention provides a brake to solve the problem that the brake in the prior art requires an additional power source and is not suitable for use in flammable and explosive environments.

[0005] The technical solution of the embodiment of the present invention is as follows:

[0006] A brake includes: a bracket, a braking member, and a first magnet; a first guiding groove is formed at the lower end of the bracket, a guiding column extends upward on the upper surface of the braking member, the guiding column extends into the first guiding groove, a receiving groove is formed at the lower end of the braking member, and the first magnet is fixed in the receiving groove.

[0007] Further: when a second magnet is provided below the brake, the repulsive force between the first magnet and the second magnet is greater than the sum of the gravity of the braking member and the gravity of the first magnet, and the brake is in an unbraked state, wherein the opposite magnetic poles of the first magnet and the second magnet are the same; when the second magnet is not provided below the brake, the braking member moves downward to brake the brake.

[0008] Further, the brake further includes: a spring, a second guiding groove extending downward is formed at the upper end of the guiding column, the spring is disposed in the second guiding groove, the lower end of the spring abuts against the bottom of the second guiding groove, the upper end of the spring abuts against the bottom of the first guiding groove, and the spring is always in a compressed state.

[0009] Further: when there is a second magnet below the brake, the repulsive force between the first magnet and the second magnet is greater than the sum of the gravity of the braking member, the gravity of the first magnet and the elastic force of the spring, and the brake is in an unbraked state, wherein the opposite magnetic poles of the first magnet and the second magnet are the same; when there is no second magnet below the brake, the braking member moves downward to brake the brake.

[0010] Further: the second magnet is installed on the inner magnetic vehicle for braking, and the inner magnetic vehicle for braking moves inside the tubular track; if the number of inner magnetic vehicles in the tubular track is one and the number of inner magnetic vehicles for braking is one, the inner magnetic vehicle for braking is connected to one end of the inner magnetic vehicle; if the number of inner magnetic vehicles in the tubular track is one and the number of inner magnetic vehicles for braking is two, the two inner magnetic vehicles for braking are respectively connected to both ends of the inner magnetic vehicle; if the number of inner magnetic vehicles in the tubular track is at least two and the number of inner magnetic vehicles for braking is two, the two inner magnetic vehicles for braking are respectively connected to the separated ends of the two inner magnetic vehicles located at both ends; the magnetic pole of the magnet of the inner magnetic vehicle facing the first magnet is opposite to the magnetic pole of the second magnet facing the first magnet.

[0011] Further: at least one outer magnetic vehicle moves on the outer surface of the upper side wall of the tubular track, each inner magnetic vehicle faces each outer magnetic vehicle, and a mounting plate extends from one side of the lower end of the bracket facing the outer magnetic vehicle; if the number of outer magnetic vehicles on the outer surface of the upper side wall of the tubular track is one and the number of brakes is one, the mounting plate of the brake is installed on the upper surface of the outer magnetic vehicle, so that the brake is located at one end of the outer magnetic vehicle; if the number of outer magnetic vehicles on the outer surface of the upper side wall of the tubular track is one and the number of brakes is two, the mounting plates of the two brakes are both installed on the upper surface of the outer magnetic vehicle, so that the two brakes are respectively located at both ends of the outer magnetic vehicle; if the number of outer magnetic vehicles on the outer surface of the upper side wall of the tubular track is at least two and the number of brakes is two, the mounting plates of the two brakes are respectively installed on the upper surfaces of the two outer magnetic vehicles at both ends, so that the two brakes are respectively located at both ends of at least two outer magnetic vehicles.

[0012] Further: when the braking member brakes, the braking member moves downward to press against the tubular track.

[0013] Further: the braking member is composed of a brake plate and two brake blocks, and the two brake blocks are respectively arranged on both sides of the brake plate, so that the shape of the braking member is an inverted U shape.

[0014] Further: a rubber friction plate is arranged on the lower surface of the brake plate.

[0015] Furthermore, when the brake is applied, the tubular rail is embedded in the inverted U-shaped structure of the brake member.

[0016] The brake of the embodiment of the present invention does not require an additional power source. It uses the repulsive force between the magnets and the elastic force of the spring, so that the walking mechanism does not need to carry additional braking energy. When the traction state is abnormal, the walking mechanism can be braked on the spot and standby in time. It is safer and more effective, and can avoid the generation and leakage of energy such as light and heat as much as possible. It is more suitable for use in extreme environments such as flammable and explosive environments, dust and smoke, and provides a safer braking solution for coal mine automated traction equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 is a side sectional view of a brake and a traveling mechanism according to a preferred embodiment of the present invention;

[0019] Figure 2 is a side sectional view of a brake and a traveling mechanism according to another preferred embodiment of the present invention;

[0020] Figure 3 is a perspective view of a brake and a traveling mechanism according to another preferred embodiment of the present invention;

[0021] Figure 4 is a front view of the brake and travel mechanism of an embodiment of the present invention;

[0022] Figure 5 It is a perspective view of a brake according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0024] The embodiment of the present invention discloses a brake. The brake is used for braking a walking mechanism. In a specific application scenario, such as Figures 1 to 4As shown in the figure, the traveling mechanism includes at least one inner magnetic vehicle 1 and at least one outer magnetic vehicle group. Each outer magnetic vehicle group includes two outer magnetic vehicles 2. The inner magnetic vehicle 1 is located inside the tubular track 3 and moves inside the tubular track 3. Adjacent two inner magnetic vehicles 1 are connected by a universal joint. The two outer magnetic vehicles 2 of each outer magnetic vehicle group are respectively located on the outer surface of the upper side wall and the outer surface of the lower side wall of the tubular track 3. Therefore, the two outer magnetic vehicles 2 in at least one outer magnetic vehicle group move on the outer surface of the upper side wall and the outer surface of the lower side wall of the tubular track 3 respectively. Adjacent two outer magnetic vehicles 2 located on the same side wall are connected by a universal joint. The sides of the two outer magnetic vehicles 2 of each outer magnetic vehicle group can be connected by a connecting plate, so as to connect the two outer magnetic vehicles 2 of each outer magnetic vehicle group. Each inner magnetic vehicle 1 corresponds to each outer magnetic vehicle group. The inner magnetic vehicle 1 is provided with a magnet. The outer magnetic vehicle 2 is also provided with a magnet. The inner magnetic vehicle 1 and the outer magnetic vehicle 2 attract each other magnetically. When the inner magnetic vehicle 1 moves, it can drive the outer magnetic vehicle 2 to move together by magnetism. The tubular track 3 is made of non-magnetic and non-magnetic conductive material. The brake of the embodiment of the present invention is used to brake the traveling mechanism with the above structure.

[0025] Specifically, as Figures 1 to 5 shown, the brake of the embodiment of the present invention includes: a bracket 4, a braking member 5 and a first magnet 6. The bracket 4 is made of non-magnetic or non-magnetic conductive material, and the braking member 5 is also made of non-magnetic or non-magnetic conductive material. When in use, the brake is installed on the outer magnetic vehicle 2. Specifically, an installation plate 7 extends from one side of the lower end of the bracket 4 towards the outer magnetic vehicle 2. It should be understood that the outer magnetic vehicle 2 moves on the outer surface of the upper side wall of the tubular track 3.

[0026] As Figure 1 shown, if the number of outer magnetic vehicles 2 on the outer surface of the upper side wall of the tubular track 3 is one and the number of brakes is one, the installation plate 7 of the brake is installed on the upper surface of the outer magnetic vehicle 2, so that the brake is located at one end of the outer magnetic vehicle 2.

[0027] If the number of outer magnetic vehicles 2 on the outer surface of the upper side wall of the tubular track 3 is one and the number of brakes is two, the installation plates 7 of the two brakes are both installed on the upper surface of the outer magnetic vehicle 2, so that the two brakes are respectively located at both ends of the outer magnetic vehicle 2.

[0028] As Figure 2 and 3 shown, if the number of outer magnetic vehicles 2 on the outer surface of the upper side wall of the tubular track 3 is at least two and the number of brakes is two, the installation plates 7 of the two brakes are respectively installed on the upper surfaces of the two outer magnetic vehicles 2 at both ends, so that the two brakes are respectively located at both ends of at least two outer magnetic vehicles 2.

[0029] The lower end of the bracket 4 is provided with a first guiding groove. A guiding column 8 extends upward on the upper surface of the braking member 5. The guiding column 8 extends into the first guiding groove. The lower end of the braking member 5 has a receiving groove. The first magnet 6 is fixed in the receiving groove. Generally, the receiving groove is sealed. By designing the first guiding groove, the guiding column 8 is limited, ensuring that the braking member 5 can only move in the up and down direction, without rotation or swing, and without jamming.

[0030] The inside of the tubular track 3 also has a braking inner magnetic vehicle 9, and the braking inner magnetic vehicle 9 can also move inside the tubular track 3.

[0031] Specifically, if the number of the inner magnetic vehicles 1 in the tubular track 3 is one and the number of the braking inner magnetic vehicles 9 is one, the braking inner magnetic vehicle 9 is connected to one end of the inner magnetic vehicle 1.

[0032] If the number of the inner magnetic vehicles 1 in the tubular track 3 is one and the number of the braking inner magnetic vehicles 9 is two, the two braking inner magnetic vehicles 9 are respectively connected to both ends of the inner magnetic vehicle 1.

[0033] If the number of the inner magnetic vehicles 1 in the tubular track 3 is at least two and the number of the braking inner magnetic vehicles 9 is two, the two braking inner magnetic vehicles 9 are respectively connected to the separated ends of the two inner magnetic vehicles 1 located at both ends, that is, the two braking inner magnetic vehicles 9 are respectively located at both ends of at least two inner magnetic vehicles 1.

[0034] A second magnet 91 is installed on the braking inner magnetic vehicle 9. The opposite magnetic poles of the first magnet 6 and the second magnet 91 are the same, so there is a mutual repulsive force between them. And because other components are made of non-magnetic and non-magnetic conductive materials, the first magnet 6 and the second magnet 91 can form a complete magnetic circuit, making the repulsive force stable. Generally, the magnetic poles of the magnet of the inner magnetic vehicle 1 and the second magnet 91 of the braking inner magnetic vehicle 9 are opposite. In this way, when the inner magnetic vehicle 1 and the outer magnetic vehicle 2 are misaligned and the inner magnetic vehicle 1 moves under the brake, it will be attracted by the magnetic poles, further braking the brake.

[0035] Under normal circumstances, the braking inner magnetic vehicle 9 is located below the brake. Therefore, when the braking inner magnetic vehicle 9 is located below the brake, there is a second magnet 91 below the brake. The repulsive force between the first magnet 6 and the second magnet 91 is greater than the sum of the gravity of the braking member 5 and the gravity of the first magnet 6, thus lifting the braking member 5. At this time, there is a distance between the bottom of the braking member 5 and the outer surface of the upper side wall of the tubular track 3, that is, they do not contact. Therefore, the brake does not limit the movement of the traveling mechanism, and the brake is in an unbraked state.

[0036] When the inner magnetic vehicle 1 is disengaged from the outer magnetic vehicle 2, the position of the braking inner magnetic vehicle 9 shifts and no longer lies below the brake. As a result, there is no second magnet 91 below the brake, leading to insufficient repulsive force against the first magnet 6. The braking member 5 moves downward and, relying on its own weight, presses against the tubular track 3 to generate friction, thereby braking the brake. It should be understood that the combined weight of the braking member 5 and the first magnet 6 should be greater than the pressing force required for the friction braking of the traveling mechanism. In particular, when the number of outer magnetic vehicle groups is at least two, brakes are installed at both ends of the outer magnetic vehicle group. Therefore, regardless of the direction from which the inner magnetic vehicle 1 disengages, the brake at the corresponding end can perform braking.

[0037] Preferably, the brake further includes: a spring 10. The upper end of the guiding column 8 is provided with a second guiding groove extending downward. The spring 10 is arranged in the second guiding groove. The lower end of the spring 10 abuts against the bottom of the second guiding groove. The upper end of the spring 10 abuts against the bottom of the first guiding groove. The spring 10 is always in a compressed state.

[0038] By installing the spring 10, braking can be further assisted. Specifically, when the braking inner magnetic vehicle 9 is located below the brake, there is a second magnet 91 below the brake. The repulsive force between the first magnet 6 and the second magnet 91 is greater than the sum of the gravity of the braking member 5, the gravity of the first magnet 6, and the elastic force of the spring 10, causing the braking member 5 not to brake and the brake to be in an unbraked state. When the inner magnetic vehicle 1 is disengaged from the outer magnetic vehicle 2, the position of the braking inner magnetic vehicle 9 shifts and no longer lies below the brake. As a result, there is no second magnet 91 below the brake, leading to insufficient repulsive force against the first magnet 6. The braking member 5 moves downward and, relying on its own weight and the elastic force of the spring 10, presses against the tubular track 3 to generate friction, thereby braking the brake. It should be understood that the sum of the self-weights of the braking member 5 and the first magnet 6 and the elastic force of the spring 10 should be greater than the pressing force required for the friction braking of the traveling mechanism.

[0039] Preferably, the braking member 5 is composed of a braking plate 51 and two braking blocks 52. The two braking blocks 52 are respectively arranged on both sides of the braking plate 51, making the shape of the braking member 5 an inverted U shape. The size of this U shape matches the tubular track 3, such that when the brake brakes, the tubular track 3 is embedded in the inverted U-shaped structure of the braking member 5, that is, the braking plate 51 presses against the upper sidewall of the tubular track 3, and the two braking blocks 52 respectively tightly abut against the two sidewalls of the tubular track 3.

[0040] Preferably, a rubber friction sheet 11 is provided on the lower surface of the braking plate 51. When the brake brakes, the rubber friction sheet 11 is pressed against the upper sidewall of the tubular track 3. Compared with the braking plate 51 itself, the material of the rubber friction sheet 11 can further increase the frictional force.

[0041] Furthermore, the tubular track 3 is typically formed by connecting multiple sections of track in sequence. Adjacent sections are typically connected by connecting plates welded to each side of the track (thus, the connecting plates protrude from the sidewalls of the track). During normal operation, the brake pads are positioned above the track and do not come into contact with the connecting plates. However, in the event of an emergency brake, the brake pads 52, already lowered, will collide or scrape against the connecting plates, thereby achieving emergency braking and preventing the vehicle from slipping.

[0042] The use process of the brake is as follows: the brake is installed on the outer surface of the upper side wall of the tubular track 3 and on the outer magnetic car 2 at the end. During normal travel, each inner magnetic car 1 faces each outer magnetic car group. Each braking inner magnetic car 9 faces each brake. There is a repulsive force between the second magnet 91 of the braking inner magnetic car 9 and the first magnet 6 of the brake, which lifts the brake member 5 and raises it so that there is a distance between the brake member 5 and the tubular track 3, allowing the inner magnetic car 1 and the outer magnetic car 2 to travel normally. When the inner magnetic car 1 is disengaged from the outer magnetic car 2, the braking inner magnetic car 91 shifts with the inner magnetic car 1, and the braking inner magnetic car 9 is no longer located below the brake. The brake is no longer affected by the repulsive force, causing the brake member 5 to fall. By relying on its own weight (and the elastic force of the spring 10), the brake member 5 presses against the tubular track 3 and generates friction, achieving the purpose of braking. In addition, since the magnetic poles of the magnet of the inner magnetic car 1 and the second magnet 91 of the brake inner magnetic car 9 are opposite, when the inner magnetic car 1 and the outer magnetic car 2 are misaligned, when the inner magnetic car 1 moves under the brake, the magnetic poles will attract each other, further braking the brake.

[0043] In summary, the brake of the embodiment of the present invention does not require an additional power source. It uses the repulsive force between the magnets and the elastic force of the spring, so that the walking mechanism does not need to carry additional braking energy. When the traction state is abnormal, the walking mechanism can be braked on the spot in time, which is safer and more effective. It can avoid the generation and leakage of energy such as light and heat as much as possible, and is more suitable for use in extreme environments such as flammable and explosive environments, dust and smoke, etc., and provides a safer braking solution for coal mine automated traction equipment.

[0044] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A brake, characterized in that: include: A bracket, a brake member, a first magnet, a second magnet and a brake inner magnet vehicle; A first guide groove is formed at the lower end of the bracket, a guide post extends upward from the upper surface of the brake member, and the guide post extends into the first guide groove. The lower end of the brake member has a receiving groove, and the first magnet is fixed in the receiving groove; The second magnet is mounted on the brake inner magnet car, and the brake inner magnet car moves inside the tubular track; If the number of the inner magnetic car in the tubular track is one and the number of the braking inner magnetic car is one, the braking inner magnetic car is connected to one end of the inner magnetic car; If the number of the inner magnetic car in the tubular track is one and the number of the braking inner magnetic cars is two, the two braking inner magnetic cars are respectively connected to the two ends of the inner magnetic car; If the number of the inner magnetic cars in the tubular track is at least two and the number of the braking inner magnetic cars is two, the two braking inner magnetic cars are respectively connected to the separated ends of the two inner magnetic cars located at the two ends; The magnetic pole of the magnet of the inner magnetic vehicle facing the first magnet is opposite to the magnetic pole of the second magnet facing the first magnet.

2. The brake according to claim 1, characterized in that: When there is a second magnet below the brake, the repulsive force between the first magnet and the second magnet is greater than the sum of the gravity of the brake member and the gravity of the first magnet, and the brake is in an unbraked state, wherein the relative magnetic poles of the first magnet and the second magnet are the same; When there is no second magnet below the brake, the brake member moves downward to brake the brake.

3. The brake according to claim 1, characterized in that Also includes: A spring, a second guide groove extending downward is formed at the upper end of the guide column, the spring is arranged in the second guide groove, the lower end of the spring abuts the bottom of the second guide groove, the upper end of the spring abuts the bottom of the first guide groove, and the spring is always in a compressed state.

4. The brake according to claim 3, characterized in that: When there is a second magnet below the brake, the repulsive force between the first magnet and the second magnet is greater than the sum of the gravity of the brake member, the gravity of the first magnet and the elastic force of the spring, and the brake is in an unbraked state, wherein the relative magnetic poles of the first magnet and the second magnet are the same; When there is no second magnet below the brake, the brake member moves downward to brake the brake.

5. The brake according to claim 4, characterized in that: At least one outer magnetic car moves on the outer surface of the upper side wall of the tubular track, each inner magnetic car faces each outer magnetic car, and a mounting plate extends from the lower end of the bracket on one side facing the outer magnetic car; If the number of the outer magnetic car on the outer surface of the upper side wall of the tubular track is one and the number of the brake is one, the mounting plate of the brake is mounted on the upper surface of the outer magnetic car so that the brake is located at one end of the outer magnetic car; If the number of the outer magnetic car on the outer surface of the upper side wall of the tubular track is one and the number of the brakes is two, the mounting plates of the two brakes are both mounted on the upper surface of the outer magnetic car so that the two brakes are respectively located at both ends of the outer magnetic car; If the number of the external magnetic cars on the outer surface of the upper side wall of the tubular track is at least two and the number of the brakes is two, the mounting plates of the two brakes are respectively mounted on the upper surfaces of the two external magnetic cars at the two ends, so that the two brakes are respectively located at the two ends of the at least two external magnetic cars.

6. The brake according to claim 5, characterized in that: When the brake member is braked, the brake member moves downward to press the tubular rail.

7. The brake according to claim 6, characterized in that: The brake member is composed of a brake plate and two brake blocks, and the two brake blocks are respectively arranged on both sides of the brake plate, so that the shape of the brake member is an inverted U shape.

8. The brake according to claim 7, characterized in that: A rubber friction sheet is provided on the lower surface of the brake plate.

9. The brake according to claim 7, characterized in that: When the brake is engaged, the tubular rail engages with the inverted U-shaped structure of the brake member.

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