Brake with adjustment gap function, brake method

Abstract

The application discloses a brake with a gap adjusting function and a brake method, and belongs to the technical field of brakes, wherein the brake comprises a base, a moving box, a brake disc, an electromagnetic driving assembly and an adjusting structure; the moving box is installed on one side of the base and movably connected with the base; the electromagnetic driving assembly is installed on the moving box; the moving box is provided with a first brake pad; the electromagnetic driving assembly is provided with a second brake pad; the first brake pad is arranged on one side of the brake disc; and the second brake pad is arranged on the other side of the brake disc; the adjusting structure comprises an eccentric wheel, an adjusting piece and a reset elastic piece; the eccentric wheel is rotatably installed on the adjusting piece; the adjusting piece is installed on the moving box and slidably connected with the moving box; the reset elastic piece is arranged between the adjusting piece and the moving box and abuts against the adjusting piece and the moving box respectively; and the eccentric wheel is used for rolling cooperation with the brake disc. Rolling friction reduces the abrasion amount of the eccentric wheel and reduces the subsequent maintenance and repair cost of the brake.

Description

Technical Field

[0001] This invention relates to the technical field of brakes, and in particular to a brake and braking method having a gap adjustment function. Background Technology

[0002] Disc brakes mainly consist of a core, armature, bushing, housing, brake spring, and brake pads. The core and housing are connected and fixed by the bushing. The armature moves between the core and housing through the guide of the bushing. When the brake is de-energized, the brake spring pushes the brake pads of the armature against the brake disc. Under the reaction force, the brake pads on the housing side are pushed against the brake disc, thus achieving braking.

[0003] There is a gap between the brake disc and the brake pads, which is usually adjusted using a centering bolt. Because the brake gap is small, the adjustment process requires repeated use of a feeler gauge for confirmation, and the adjustment requires the brake pads to be flush with the brake disc, which places high demands on the operator and increases production costs. Furthermore, during long-term operation, the centering bolts impact the base or housing, causing wear and tear over time, leading to changes in the gap. Therefore, regular inspections and adjustments are required by maintenance personnel. Failure to adjust in a timely manner may result in brake failure or elevator shutdown, affecting daily use by customers. Summary of the Invention

[0004] The purpose of this invention is to improve the problem of wear on the centering bolts of existing brakes during long-term operation, which requires regular maintenance, and to provide a brake with a clearance adjustment function and a warning method.

[0005] The technical solutions for achieving the above objectives include the following:

[0006] A brake with adjustable clearance function includes: a base, a movable housing, a brake disc, an electromagnetic drive assembly, and an adjustment structure. The movable housing is mounted on one side of the base and is movably engaged with the base. The electromagnetic drive assembly is mounted on the movable housing. The movable housing has a first brake pad, and the electromagnetic drive assembly has a second brake pad. The first brake pad is disposed on one side of the brake disc, and the second brake pad is disposed on the other side of the brake disc.

[0007] The adjustment structure includes an eccentric wheel, an adjusting member, and a reset elastic member. The eccentric wheel is rotatably mounted on the adjusting member, which is mounted on the movable housing and slides in cooperation with it. The reset elastic member is disposed between the adjusting member and the movable housing, and abuts against both the adjusting member and the movable housing. The eccentric wheel and the first brake pad are on the same side of the brake disc, and the eccentric wheel is used to roll in cooperation with the brake disc.

[0008] In one embodiment, the eccentric wheel has a first mating end, a second mating end, and a rotating shaft hole, wherein the distance between the first mating end and the rotating shaft hole is greater than the distance between the second mating end and the rotating shaft hole;

[0009] The reset elastic element has a compressed state and a natural state. When the reset elastic element is in the compressed state, both the first mating end and the second mating end are mated with the brake disc. When the reset elastic element is in the natural state, both the first mating end and the second mating end are separated from the brake disc.

[0010] In one embodiment, the adjustment structure further includes a support shaft, which is installed at the first end of the adjusting member. The rotation shaft hole of the eccentric wheel is sleeved outside the support shaft, and the eccentric wheel is rotatably connected to the support shaft.

[0011] In one embodiment, the adjustment structure further includes a limiting block, the movable housing has a through hole for the adjusting member to pass through, the second end of the adjusting member passes through the through hole and is fixedly connected to the limiting block, the limiting block is used to abut against the movable housing;

[0012] When the reset elastic element is in a compressed state, the limiting block separates from the moving housing; when the reset elastic element is in a free state, the limiting block abuts against the moving housing.

[0013] In one embodiment, the adjustment structure further includes a linear bearing disposed within a through hole, and the adjustment member is slidably connected to the movable housing via the linear bearing.

[0014] In one embodiment, the adjusting member includes a support block and an adjusting column. The support block and the adjusting column are an integral structure. The cross-sectional area of ​​the support block is larger than the cross-sectional area of ​​the adjusting column. The adjusting column passes through the through hole of the movable housing. The support shaft is mounted on the support block, and the limiting block is mounted on the adjusting column.

[0015] The reset elastic element is sleeved outside the adjusting column, with one end of the reset elastic element abutting against the support block and the other end of the reset elastic element abutting against the movable housing.

[0016] In one embodiment, the movable housing has a limiting groove, and the reset elastic element is disposed within the limiting groove.

[0017] In one embodiment, the movable housing has an inverted U-shaped structure, the electromagnetic drive assembly is installed on the first inner side of the movable housing, and the adjustment structure is installed on the second inner side of the movable housing.

[0018] The base has guide posts, the movable housing is sleeved on the guide posts and slides with them, and the base is located outside the movable housing.

[0019] In one embodiment, the electromagnetic drive assembly includes an iron core, an armature, and a brake. The iron core is mounted on a movable housing, the armature is movably disposed on one side of the iron core, and the brake is disposed between the armature and the iron core.

[0020] The braking component includes a guide pin and a braking spring. The guide pin is mounted on the iron core, the armature is sleeved outside the guide pin and slides with the guide pin, and the braking spring is sleeved outside the guide pin. The two ends of the braking spring abut against the iron core and the armature, respectively.

[0021] The present invention also proposes a braking method based on the above-mentioned brake with adjustable clearance function, comprising the following steps:

[0022] When the brake is engaged: the electromagnetic drive assembly is de-energized, moves toward the brake disc, and the reaction force of the electromagnetic drive assembly drives the moving housing to move toward the brake disc, and the first brake pad and the second brake pad engage the brake disc; the moving housing drives the adjustment structure to move toward the brake disc, the eccentric wheel abuts against the brake disc, and the reset elastic element is in a compressed state.

[0023] When the brake is released: the electromagnetic drive assembly is energized, moves away from the brake disc, and the reaction force of the electromagnetic drive assembly pushes the moving housing away from the brake disc, causing the first and second brake pads to separate from the brake disc; during the rolling engagement of the eccentric wheel and the brake disc, the reset elastic element changes from a compressed state to a natural state, and in the natural state, the eccentric wheel separates from the brake disc.

[0024] The technical solution provided by this invention has the following advantages and effects:

[0025] Because the eccentric wheel has an eccentric structure, its rotating shaft hole is not at the center of the eccentric wheel. Therefore, when the brake disc rotates, the frictional resistance between the brake disc and the eccentric wheel fluctuates. When the frictional resistance suddenly increases, the eccentric wheel acts on the return elastic element. This return elastic element generates a reaction force that pushes the moving housing away from the brake disc. This causes the distance between the eccentric wheel and the brake disc to continuously increase during the rolling engagement, and the frictional resistance between the eccentric wheel and the brake disc to continuously decrease. Moreover, as the resistance decreases, the driving force of the brake disc on the eccentric wheel also decreases, resulting in a slower speed of the eccentric wheel until it completely separates from the brake disc.

[0026] When the electromagnetic drive assembly is energized, the first and second brake pads separate from the brake disc. The brake disc then rolls against the eccentric wheel, causing it to rotate. Through the interaction of the adjusting and resetting elastic components, the moving housing moves away from the brake disc, thereby adjusting the gaps between the first and second brake pads and the brake disc. Furthermore, the rolling friction between the brake disc and the eccentric wheel significantly reduces wear on the eccentric wheel compared to sliding and impact friction. Even with prolonged operation, the eccentric wheel will not show significant wear, reducing the frequency of periodic maintenance or eliminating the need for maintenance altogether, thus lowering subsequent maintenance and repair costs. Attached Figure Description

[0027] The accompanying drawings illustrate specific examples of the technical solutions described in this invention and, together with the detailed embodiments, form part of the specification, serving to explain the technical solutions, principles, and effects of this invention.

[0028] Unless otherwise specified or defined, the same reference numerals in different figures represent the same or similar technical features, and different reference numerals may be used to represent the same or similar technical features.

[0029] Figure 1 This is a schematic diagram of the brake in one embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the brake in the released state according to one embodiment of the present invention. Figure 1 ;

[0031] Figure 3 This is a schematic diagram of the brake in the released state according to one embodiment of the present invention. Figure 2 ;

[0032] Figure 4 This is a schematic diagram of the brake in the released state according to one embodiment of the present invention. Figure 3 ;

[0033] Figure 5 This is a schematic diagram of the brake in the released state according to one embodiment of the present invention. Figure 4 ;

[0034] Figure 6 This is a schematic diagram of the adjustment structure in one embodiment of the present invention;

[0035] Figure 7 This is a cross-sectional view of the adjustment structure in one embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of an eccentric wheel in one embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram of an eccentric wheel in another embodiment of the present invention;

[0038] Explanation of reference numerals in the attached figures:

[0039] 100. Brake; 1. Moving housing; 11. First brake pad; 12. Limiting groove; 13. First inner side; 14. Second inner side; 2. Guide column; 3. Base; 40. Electromagnetic drive assembly; 4. Iron core; 5. Armature; 51. Second brake pad; 6. Braking component; 7. Brake disc; 8. Adjustment structure; 81. Eccentric wheel; 811. First mating end; 812. Second mating end; 813. Rotating shaft hole; 82. Adjusting component; 821. Support block; 822. Adjusting column; 83. Limiting block; 84. Support shaft; 85. Reset elastic component; 86. Linear bearing. Detailed Implementation

[0040] To facilitate understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0041] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0042] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the related listed items.

[0043] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0044] This invention proposes a brake 100 with a gap adjustment function, such as... Figure 1As shown, the system includes a base 3, a movable housing 1, a brake disc 7, an electromagnetic drive assembly 40, and an adjustment structure 8. The movable housing 1 is mounted on one side of the base 3 and is movably engaged with the base 3. The electromagnetic drive assembly 40 is mounted on the movable housing 1. The movable housing 1 has a first brake pad 11, and the electromagnetic drive assembly 40 has a second brake pad 51. The first brake pad 11 is located on one side of the brake disc 7, and the second brake pad 51 is located on the other side of the brake disc 7. The adjustment structure 8 includes an eccentric wheel 81, an adjusting member 82, and a reset elastic member 85. The eccentric wheel 81 is rotatably mounted on the adjusting member 82, and the adjusting member 82 is mounted on the movable housing 1 and is slidably engaged with the movable housing 1. The reset elastic member 85 is located between the adjusting member 82 and the movable housing 1, and the reset elastic member 85 abuts against both the adjusting member 82 and the movable housing 1. The eccentric wheel 81 and the first brake pad 11 are on the same side of the brake disc 7, and the eccentric wheel 81 is used for rolling engagement with the brake disc 7.

[0045] Specifically, the movable housing 1 is movably mounted on the base 3. The electromagnetic drive assembly 40 applies a positive or negative force to the movable housing 1 when it is energized or de-energized. When the electromagnetic drive assembly 40 is de-energized, it is in an expanded state, driving the first brake pad 11 towards the brake disc 7. The reaction force of the electromagnetic drive assembly 40 moves the movable housing 1 towards the brake disc 7, causing both the first brake pad 11 and the second brake pad 51 to move towards the brake disc 7 and engage the brake disc 7, thus achieving braking. When the electromagnetic drive assembly 40 is energized, it is in a contracted state, driving the second brake pad 51 away from the brake disc 7. The reaction force of the electromagnetic drive assembly 40 moves the movable housing 1 away from the brake disc 7, causing both the first brake pad 11 and the second brake pad 51 to move away from the brake disc 7, allowing the brake disc 7 to operate normally.

[0046] Furthermore, such as Figures 2 to 5As shown, when the electromagnetic drive assembly 40 is de-energized, the brake disc 7 is braked by the first brake pad 11 and the second brake pad 51. When the moving housing 1 moves closer to the brake disc 7, the eccentric wheel 81 abuts against the brake disc 7. The eccentric wheel 81 is squeezed by the brake disc 7 and drives the adjusting member 82 to move, while simultaneously squeezing the reset elastic member 85. The reset elastic member 85 is in a compressed state. It should be noted that the elastic force of the reset elastic member 85 is less than the force of the electromagnetic drive assembly 40. When the electromagnetic drive assembly 40 is energized, the second brake pad 51 first separates from the brake disc 7, and gradually drives the first brake pad 11 to separate from the brake disc 7. After both the first brake pad 11 and the second brake pad 51 are separated from the brake disc 7, the brake disc 7 rotates normally, driving the eccentric wheel 81 to rotate. Since the electromagnetic drive assembly 40 and the reset elastic member 85 simultaneously drive the moving housing 1 away from the brake disc 7, the rolling friction resistance between the eccentric wheel 81 and the brake disc 7 gradually decreases, and the rotation speed of the eccentric wheel 81 gradually slows down.

[0047] like Figure 8 and Figure 9 As shown, because the eccentric wheel 81 has an eccentric structure, its rotating shaft hole 813 is not at the center of the eccentric wheel 81. Therefore, when the brake disc 7 rotates, the brake disc 7 acts on the eccentric wheel 81, and the frictional resistance between the brake disc 7 and the eccentric wheel 81 fluctuates. When the frictional resistance between the brake disc 7 and the eccentric wheel 81 suddenly increases, the eccentric wheel 81 will act on the reset elastic element 85. The reset elastic element 85 will generate a reaction force that will push the moving housing 1 away from the brake disc 7. This will cause the distance between the eccentric wheel 81 and the brake disc 7 to continuously increase during the rolling engagement, and the frictional resistance between the eccentric wheel 81 and the brake disc 7 will continuously decrease. Moreover, as the resistance decreases, the driving force of the brake disc 7 on the eccentric wheel 81 will also decrease, resulting in a slower speed of the eccentric wheel 81 until the eccentric wheel 81 and the brake disc 7 are completely separated.

[0048] Furthermore, such as Figure 6 and Figure 7 As shown, when the electromagnetic drive assembly 40 is energized, after the first brake pad 11 and the second brake pad 51 separate from the brake disc 7, the brake disc 7 and the eccentric wheel 81 engage in a rolling contact. The brake disc 7 presses against the eccentric wheel 81, causing it to rotate. Through the cooperation of the adjusting member 82 and the reset elastic member 85, the moving housing 1 moves away from the brake disc 7, thereby adjusting the gaps between the first brake pad 11 and the brake disc 7, and between the second brake pad 51 and the brake disc 7. Furthermore, the rolling friction between the brake disc 7 and the eccentric wheel 81 significantly reduces the wear on the eccentric wheel 81 compared to sliding friction and impact. Even with prolonged operation of the brake 100, the eccentric wheel 81 will not experience significant wear, reducing the frequency of periodic maintenance or eliminating the need for maintenance altogether, thus lowering the subsequent maintenance and repair costs of the brake 100.

[0049] To further achieve complete separation between the brake disc 7 and the eccentric wheel 81, preferably, as follows: Figure 8 and Figure 9 As shown, the eccentric wheel 81 has a first mating end 811, a second mating end 812, and a rotating shaft hole 813. The distance between the first mating end 811 and the rotating shaft hole 813 is greater than the distance between the second mating end 812 and the rotating shaft hole 813. The reset elastic element 85 has a compressed state and a natural state. When the reset elastic element 85 is in the compressed state, both the first mating end 811 and the second mating end 812 are mated with the brake disc 7. When the reset elastic element 85 is in the natural state, both the first mating end 811 and the second mating end 812 are separated from the brake disc 7.

[0050] Specifically, the rotating shaft hole 813 does not correspond to the center or center of the eccentric wheel 81; therefore, on the eccentric wheel 81, the distance between its first mating end 811 and the rotating shaft hole 813 is greater than the distance between its second mating end 812 and the rotating shaft hole 813. When the electromagnetic drive assembly 40 is de-energized, the moving housing 1 approaches the brake disc 7, and the first mating end 811 and the second mating end 812 of the eccentric wheel 81 are always in contact with the brake disc 7, and the reset elastic element 85 is in a compressed state. When the electromagnetic drive assembly 40 is energized, the moving housing 1 gradually moves away from the brake disc 7, and the distance between the first mating end 811 and the brake disc 7 is closer, and the first mating end 811 is always used for rolling engagement with the brake disc 7.

[0051] Furthermore, when the first mating end 811 contacts the brake disc 7, the eccentric wheel 81 compresses the reset elastic element 85, which immediately generates a reaction force. This reaction force drives the moving housing 1 to continue moving away from the brake disc 7. When the eccentric wheel 81 rotates to the state where the second mating end 812 is separated from the brake disc 7, the distance between the eccentric wheel 81 and the brake disc 7 gradually increases. When the eccentric wheel 81 rotates to the state where the first mating end 811 contacts the brake disc 7, its rolling friction will also continue to decrease until the frictional resistance can no longer drive the eccentric wheel 81 to rotate one revolution. And when the second mating end 812 approaches the brake disc 7, the eccentric wheel 81 and the brake disc 7 will completely separate.

[0052] In this embodiment, by utilizing the special structure and rotation trajectory of the eccentric wheel 81, the reset elastic element 85 repeatedly acts on the moving housing 1 to achieve the adjustment of the gap between the brake pad and the brake disc 7 by the eccentric wheel 81. After the task of adjusting the gap is completed, the eccentric wheel 81 can be completely separated from the brake disc 7 to avoid interfering with the normal rotation of the brake disc 7.

[0053] Preferably, the adjustment structure 8 further includes a support shaft 84, which is mounted on the first end of the adjusting member 82. The rotation shaft hole 813 of the eccentric wheel 81 is sleeved on the support shaft 84, and the eccentric wheel 81 is rotatably connected to the support shaft 84. Specifically, the support shaft 84 is used to support the eccentric wheel 81, allowing the eccentric wheel 81 to rotate on the adjusting member 82. At the same time, when the eccentric wheel 81 is squeezed by the brake disc 7, the eccentric wheel 81 can drive the adjusting member 82 to move and squeeze the reset elastic member 85, causing the reset elastic member 85 to generate a reaction force to push the moving housing 1 to move.

[0054] To further improve the stability of the engagement between the adjusting member 82 and the reset elastic member 85, preferably, the adjusting structure 8 includes a limiting block 83. The movable housing 1 has a through hole through which the adjusting member 82 passes. The second end of the adjusting member 82 passes through the through hole and is fixedly connected to the limiting block 83. The limiting block 83 is used to abut against the movable housing 1. When the reset elastic member 85 is in a compressed state, the limiting block 83 is separated from the movable housing 1. When the reset elastic member 85 is in a free state, the limiting block 83 abuts against the movable housing 1.

[0055] Specifically, when the brake 100 is in the engaged state, the movable housing 1 is close to the brake disc 7, the brake disc 7 presses against the eccentric wheel 81, and the reset elastic element 85 is compressed, causing the limiting block 83 to move away from the movable housing 1. When the brake 100 is in the released state, the movable housing 1 moves away from the brake disc 7, and the reaction force of the reset elastic element 85 drives the adjusting element 82 to slide on the movable housing 1, causing the limiting block 83 to abut against the movable housing 1. When the brake disc 7 continuously rolls and rubs against the eccentric wheel 81, the force generated by the reset elastic element 85 during repeated compression will push the movable housing 1 away from the brake disc 7.

[0056] To reduce the force exerted by the reset elastic element 85 on the moving housing 1, the adjustment structure 8 preferably further includes a linear bearing 86 disposed within a through hole. The adjusting element 82 is slidably connected to the moving housing 1 via the linear bearing 86. Specifically, when the brake disc 7 and the eccentric wheel 81 are in rolling engagement, the brake disc 7 presses against the reset elastic element 85. The reaction force generated by the reset elastic element 85 drives the moving housing 1 to move. By providing the linear bearing 86 between the adjusting element 82 and the moving housing 1, the sliding resistance between the moving housing 1 and the adjusting element 82 is reduced, directly reducing the force driving the moving housing 1 to move, and further allowing the moving housing 1 to move away from the brake disc 7.

[0057] Preferably, the adjusting member 82 includes a support block 821 and an adjusting column 822. The support block 821 and the adjusting column 822 are an integral structure. The cross-sectional area of ​​the support block 821 is larger than that of the adjusting column 822. The adjusting column 822 passes through the through hole of the movable housing 1. The support shaft 84 is installed on the support block 821. The limiting block 83 is installed on the adjusting column 822. The reset elastic member 85 is sleeved on the adjusting column 822, and one end of the reset elastic member 85 abuts against the support block 821, and the other end of the reset elastic member 85 abuts against the movable housing 1.

[0058] Specifically, the support block 821 is used to fix the support shaft 84, so that the eccentric wheel 81 rolls with the brake disc 7 on the support block 821 via the support shaft 84. The adjusting column 822 is used to slide on the moving housing 1. The two ends of the reset elastic member 85 abut against the support block 821 and the moving housing 1 respectively. When the adjusting column 822 moves towards the base 3, the reset elastic member 85 is in a compressed state. When the limiting block 83 abuts against the moving housing 1, the reset elastic member 85 is in a free state. Preferably, the reset elastic member 85 is a helical spring, which is sleeved on the adjusting column 822 to improve the stability of the reset elastic member 85 on the adjusting member 82.

[0059] Preferably, the movable housing 1 has a limiting groove 12, and the reset elastic element 85 is disposed within the limiting groove 12. Specifically, disposing the reset elastic element 85 within the limiting groove 12 facilitates concealed installation of the reset elastic element 85, and the limiting groove 12 limits its movement against the adjusting column 822, further improving the stability of the reset elastic element 85 on the adjusting column 822.

[0060] Preferably, the movable housing 1 has an inverted U-shaped structure, the electromagnetic drive assembly 40 is installed on the first inner side 13 of the movable housing 1, and the adjustment structure 8 is installed on the second inner side 14 of the movable housing 1; the base 3 has a guide post 2, the movable housing 1 is sleeved on the guide post 2 and slides with the guide post 2, and the base 3 is located on the outside of the movable housing 1.

[0061] Specifically, the electromagnetic drive assembly 40 and the adjustment structure 8 are respectively installed on the first inner side 13 and the second inner side 14, which can make the electromagnetic drive assembly 40, the adjustment structure 8 and the movable housing 1 fit together more tightly; by setting a guide post 2 on one side of the base 3, the movable housing 1 can move left and right on one side of the base 3 under the action of the electromagnetic drive assembly 40 or the elastic reset member 85, thereby adjusting the gap between the brake pad and the brake disc 7.

[0062] Preferably, the electromagnetic drive assembly 40 includes an iron core 4, an armature 5, and a brake component 6. The iron core 4 is mounted on the movable housing 1, the armature 5 is movably disposed on one side of the iron core 4, and the brake component 6 is disposed between the armature 5 and the iron core 4. The brake component 6 includes a guide pin and a brake spring. The guide pin is mounted on the iron core 4, the armature 5 is sleeved on the guide pin and slides with the guide pin, and the brake spring is sleeved on the guide pin. The two ends of the brake spring abut against the iron core 4 and the armature 5, respectively.

[0063] Specifically, the iron core 4 is fixed to one side of the movable housing 1, the armature 5 is used for electromagnetic engagement with the iron core 4, and the brake element 6 is disposed between the armature 5 and the iron core 4. When the iron core 4 is not conductive, the elastic force of the brake element 6 acts on the armature 5, causing the armature 5 to push the second brake pad 51 toward the brake disc 7. When the brake element 6 acts on the armature 5, based on the interaction of forces, the iron core 4 is pushed to the left by the reaction force of the brake element 6, causing the iron core 4 to drive the movable housing 1 toward the brake disc 7, thus realizing the first brake pad 11 and the second brake pad 51 engaging the brake disc 7. When the iron core 4 is conductive, the magnetic field generated by the iron core 4 attracts the armature 5 toward the iron core 4, and the iron core 4 and the armature 5 move closer to each other. The armature 5 drives the second brake pad 51 away from the brake disc 7. Based on the interaction of forces, this magnetic force pushes the first brake pad 11 of the movable housing 1 to move to the right. Both the first brake pad 11 and the second brake pad 51 move away from the brake disc 7, completing the release of the brake.

[0064] The present invention also proposes a braking method based on the brake 100 with the above-described gap adjustment function, comprising the following steps:

[0065] When the brake 100 is in the holding state: the electromagnetic drive assembly 40 is de-energized, the electromagnetic drive assembly 40 moves toward the brake disc 7, and the reaction force of the electromagnetic drive assembly 40 drives the moving housing 1 to move toward the brake disc 7, and the first brake pad 11 and the second brake pad 51 hold the brake disc 7; the moving housing 1 drives the adjustment structure 8 to move toward the brake disc 7, the eccentric wheel 81 abuts against the brake disc 7, and the reset elastic element 85 is in a compressed state.

[0066] When the brake 100 is in the released state: the electromagnetic drive assembly 40 is energized, the electromagnetic drive assembly 40 moves away from the brake disc 7, and the reaction force of the electromagnetic drive assembly 40 pushes the moving housing 1 away from the brake disc 7, and the first brake pad 11 and the second brake pad 51 separate from the brake disc 7; during the rolling engagement of the eccentric wheel 81 and the brake disc 7, the reset elastic element 85 changes from the compressed state to the natural state, and in the natural state, the reset elastic element 85 separates the eccentric wheel 81 from the brake disc 7.

[0067] Specifically, by using the above braking method, the interaction between the structure 8 and the brake disc 7 can be adjusted, and the special structure of the eccentric wheel 81 and the elastic force of the reset elastic element 85 can be used to automatically adjust the gap between the brake pads and the brake disc 7, thereby reducing the number of subsequent maintenance and repairs of the brake 100.

[0068] When referencing drawings, new features are explained. To avoid redundant references to drawings that would make the description less concise, features already described will not be referenced again on the drawings if the description is clear.

[0069] The purpose of the above embodiments is to reproduce and derive the technical solution of the present invention by way of example, and to fully describe the technical solution, purpose and effect of the present invention. The purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosure of the present invention, and not to limit the scope of protection of the present invention.

[0070] The above embodiments are not an exhaustive list based on the present invention, and there may be many other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A brake with a clearance adjustment function, characterized in that, include: The machine base, the movable housing, the brake disc, the electromagnetic drive assembly, and the adjustment structure are provided. The movable housing is installed on one side of the machine base and is movably fitted with the machine base. The electromagnetic drive assembly is installed on the movable housing. The movable housing has a first brake pad and the electromagnetic drive assembly has a second brake pad. The first brake pad is located on one side of the brake disc, and the second brake pad is located on the other side of the brake disc. The adjustment structure includes an eccentric wheel, an adjusting member, and a reset elastic member. The eccentric wheel is rotatably mounted on the adjusting member, which is mounted on the movable housing and slides in cooperation with it. The reset elastic member is disposed between the adjusting member and the movable housing, and abuts against both the adjusting member and the movable housing. The eccentric wheel and the first brake pad are on the same side of the brake disc, and the eccentric wheel is used to roll in cooperation with the brake disc.

2. The brake with adjustable clearance function as described in claim 1, characterized in that, The eccentric wheel has a first mating end, a second mating end, and a rotating shaft hole, wherein the distance between the first mating end and the rotating shaft hole is greater than the distance between the second mating end and the rotating shaft hole; The reset elastic element has a compressed state and a natural state. When the reset elastic element is in the compressed state, both the first mating end and the second mating end are mated with the brake disc. When the reset elastic element is in the natural state, both the first mating end and the second mating end are separated from the brake disc.

3. The brake with adjustable clearance function as described in claim 2, characterized in that, The adjustment structure also includes a support shaft, which is installed at the first end of the adjusting member. The rotating shaft hole of the eccentric wheel is sleeved on the outside of the support shaft, and the eccentric wheel is rotatably connected to the support shaft.

4. The brake with adjustable clearance function as described in claim 3, characterized in that, The adjustment structure also includes a limiting block. The movable housing has a through hole for the adjusting member to pass through. The second end of the adjusting member passes through the through hole and is fixedly connected to the limiting block. The limiting block is used to abut against the movable housing. When the reset elastic element is in a compressed state, the limiting block separates from the moving housing; when the reset elastic element is in a free state, the limiting block abuts against the moving housing.

5. The brake with adjustable clearance function as described in claim 4, characterized in that, The adjustment structure also includes a linear bearing, which is disposed in a through hole, and the adjustment component is slidably connected to the movable housing through the linear bearing.

6. The brake with adjustable clearance function as described in claim 4, characterized in that, The adjusting component includes a support block and an adjusting column. The support block and the adjusting column are an integral structure. The cross-sectional area of ​​the support block is larger than that of the adjusting column. The adjusting column passes through the through hole of the movable box. The support shaft is mounted on the support block, and the limiting block is mounted on the adjusting column. The reset elastic element is sleeved outside the adjusting column, with one end of the reset elastic element abutting against the support block and the other end of the reset elastic element abutting against the movable housing.

7. The brake with adjustable clearance function as described in claim 6, characterized in that, The movable housing has a limiting groove, and the reset elastic element is disposed in the limiting groove.

8. The brake with a clearance adjustment function as described in any one of claims 1 to 7, characterized in that, The movable housing has an inverted U-shaped structure, the electromagnetic drive assembly is installed on the first inner side of the movable housing, and the adjustment structure is installed on the second inner side of the movable housing. The base has guide posts, the movable housing is sleeved on the guide posts and slides with them, and the base is located outside the movable housing.

9. The brake with a clearance adjustment function as described in any one of claims 1 to 7, characterized in that, The electromagnetic drive assembly includes an iron core, an armature, and a brake. The iron core is mounted on a movable housing, the armature is movably disposed on one side of the iron core, and the brake is disposed between the armature and the iron core. The braking component includes a guide pin and a braking spring. The guide pin is mounted on the iron core, the armature is sleeved outside the guide pin and slides with the guide pin, and the braking spring is sleeved outside the guide pin. The two ends of the braking spring abut against the iron core and the armature, respectively.

10. A braking method based on the brake with adjustable clearance function according to claim 1, characterized in that, Includes the following steps: When the brake is engaged: the electromagnetic drive assembly is de-energized, moves toward the brake disc, and the reaction force of the electromagnetic drive assembly drives the moving housing to move toward the brake disc, and the first brake pad and the second brake pad engage the brake disc; the moving housing drives the adjustment structure to move toward the brake disc, the eccentric wheel abuts against the brake disc, and the reset elastic element is in a compressed state. When the brake is released: the electromagnetic drive assembly is energized, moves away from the brake disc, and the reaction force of the electromagnetic drive assembly pushes the moving housing away from the brake disc, causing the first and second brake pads to separate from the brake disc; during the rolling engagement of the eccentric wheel and the brake disc, the reset elastic element changes from a compressed state to a natural state, and in the natural state, the eccentric wheel separates from the brake disc.

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