Springback disengagement device for double-layer friction block brake

Abstract

The utility model relates to a springback disengagement device for a double-layer friction block brake, which belongs to the technical field of press machines and comprises a pressing disc, an outer friction block, a middle friction disc, an inner friction block and a fixed disc which are sequentially arranged from top to bottom, the outer friction block is mounted on the top surface of the middle friction disc, and the inner friction block is mounted on the top surface of the fixed disc; a springback assembly is connected between the outer side of the middle friction disc and the fixed disc, and the springback assembly can push the middle friction disc to form a gap between the pressing disc and the outer friction block and a gap between the middle friction disc and the inner friction block during ventilation. After ventilation, the pressing disc is separated from the outer friction block, at the moment, the springback assembly supports the middle friction disc to be separated from the inner friction block, and at the moment, a gap is reserved between the outer friction block and the pressing disc; therefore, the abrasion of the inner friction block during the operation of the press machine is avoided, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of presses, in particular to a rebound disengaging device for a double-layer friction block brake. Background Art

[0002] Friction pad brakes, commonly known as friction brakes, are devices that use the frictional resistance generated when two moving surfaces come into contact with each other to convert the kinetic energy and potential energy of a car or other mechanical equipment into heat energy, thereby slowing down or stopping the moving object.

[0003] Friction brakes are mainly composed of brake racks, brake parts (such as brake blocks or brake pads) and operating devices. Some friction brakes are also equipped with automatic adjustment devices for the clearance of brake parts. The working principle of friction brakes is to generate friction between brake pads and brake discs (or brake drums) through pressure devices (such as joysticks or control systems), thereby generating braking force to slow down or stop the object.

[0004] Friction brakes have many advantages, such as stable braking performance, good braking performance on various road surfaces, simple structure and convenient maintenance, etc. Therefore, they are widely used in modern vehicles and engineering machinery equipment.

[0005] In the double-layer friction block brake structure of the prior art, when not ventilated, the clamping plate presses the inner and outer friction blocks under the action of the external spring, thereby generating friction force, and realizing the braking function under the action of the friction force; after ventilation, the gas pushes the clamping plate to separate from the outer friction block, and the inner friction block and the middle friction plate cannot be separated at this time. Friction will be generated when the press machine is running, affecting the service life of the inner friction block, which does not meet the requirements of a low-carbon economy. Utility Model Content

[0006] In order to solve the problem that the inner friction block cannot be disengaged from the middle friction disk, resulting in friction affecting the service life, the utility model provides a rebound disengaging device for a double-layer friction block brake.

[0007] The utility model is realized by the following technical solutions:

[0008] A rebound disengagement device for a double-layer friction block brake comprises a pressure plate, an outer friction block, an intermediate friction plate, an inner friction block and a fixed disc arranged in sequence from top to bottom, the outer friction block is mounted on the top surface of the intermediate friction plate, and the inner friction block is mounted on the top surface of the fixed disc; a rebound component is connected between the outer side of the intermediate friction plate and the fixed disc, and the rebound component can push the intermediate friction plate to form a gap between the pressure plate and the outer friction block and between the intermediate friction plate and the inner friction block when ventilated.

[0009] After ventilation, the clamping plate and the outer friction block are separated. At this time, the rebound assembly supports the middle friction plate to separate from the inner friction block. At this time, a gap is left between the outer friction block and the clamping plate; thereby avoiding the wear of the inner friction block when the press machine is running and extending the service life.

[0010] A further improvement of the utility model is that the above-mentioned rebound assembly includes a vertical rebound adjustment bolt, the two ends of which are respectively connected to the middle friction disk and the fixed disk, and a compression spring is sleeved on the rebound adjustment bolt. The compression spring supports the middle friction disk along the rebound adjustment bolt as a guide.

[0011] A further improvement of the utility model is that the compression spring is a rectangular spring, which has the advantages of strong elastic deformation ability, good dimensional stability and strong fatigue resistance.

[0012] A further improvement of the utility model is that the above-mentioned rebound assembly also includes a spring bracket, which is connected to the middle friction plate and the rebound adjustment bolt, and the bottom surface of the spring bracket is in contact with the top end of the compression spring.

[0013] A further improvement of the utility model is that the spring bracket is provided with a screw through hole for allowing the rebound adjustment bolt to pass through, and the upper part of the spring bracket is provided with a locking nut threadedly connected to the rebound adjustment bolt. The cooperation of the spring bracket and the locking nut helps to facilitate the assembly of the rebound adjustment bolt and the compression spring on the device.

[0014] A further improvement of the utility model is that the stroke length of the clamping plate is 3 mm, and the stroke length of the spring bracket is 1.5 mm, thereby ensuring that after ventilation, the friction surfaces of the outer friction block and the inner friction block form gaps with adjacent components.

[0015] A further improvement of the utility model is that the spring bracket comprises a seat plate which can be detachably mounted on the side of the middle friction disc, the seat plate is provided with a horizontally extending pressure plate, and the screw through hole is opened on the pressure plate.

[0016] A further improvement of the utility model is that the bottom surface of the pressure plate is provided with a reinforcement portion protruding downward, and the bottom surface of the reinforcement portion is a horizontal plane.

[0017] A further improvement of the utility model is that the fixed disc is provided with a boss extending outwards for supporting the rebound adjustment bolt.

[0018] A further improvement of the utility model is that the boss is provided with a screw mounting hole matched with the thread of the rebound adjustment bolt, which helps to facilitate the assembly of the rebound adjustment bolt on the fixed disc.

[0019] It can be seen from the above technical scheme that the beneficial effect of the utility model is: after ventilation, the clamping plate and the outer friction block are separated, and the rebound assembly supports the middle friction plate to separate from the inner friction block. At this time, a gap is left between the outer friction block and the clamping plate; thereby avoiding the wear of the inner friction block when the press machine is running, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0022] Figure 2 It is a partial schematic diagram of a fixed disc according to a specific implementation method of the utility model.

[0023] Figure 3 It is a schematic diagram of the spring bracket structure of a specific implementation method of the utility model.

[0024] In the attached figure: 1, fixed disc; 11, screw mounting hole; 2, rebound adjustment bolt; 3, rectangular spring; 4, spring bracket; 41, seat plate; 42, pressure plate; 43, screw through hole; 5, locking nut; 6, clamping disc; 7, outer friction block; 8, middle friction disc; 9, inner friction block. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] As attached Figure 1-3 As shown, a rebound release device for a double-layer friction block brake includes a clamping plate 6, an outer friction block 7, a middle friction plate 8, an inner friction block 9 and a fixed disc 1 arranged in sequence from top to bottom, wherein the clamping plate 6, the outer friction block 7, the middle friction plate 8 and the inner friction block 9 are mounted on the fixed disc 1 through splines and can move up and down along the axial direction of the splines, thereby helping to complete the braking effect by squeezing the friction surfaces of the outer friction block 7 and the inner friction block 9.

[0027] The outer friction block 7 is installed on the top surface of the middle friction disk 8, and the inner friction block 9 is installed on the top surface of the fixed disk 1; a rebound component is connected between the outer side of the middle friction disk 8 and the fixed disk 1; the rebound component can push the middle friction disk 8 to form a gap between the clamping disk 6 and the outer friction block 7 and between the middle friction disk 8 and the inner friction block 9 during ventilation.

[0028] The rebound assembly includes a spring bracket 4 mounted on the middle friction disc 8, a boss arranged on the fixed disc 1, and a rebound adjustment bolt 2 connecting the spring bracket 4 and the boss, and a compression spring sleeved on the rebound adjustment bolt 2 is arranged between the spring bracket 4 and the boss. The compression spring is a rectangular spring 3. The rectangular spring 3 has the advantages of strong elastic deformation ability, good dimensional stability and strong fatigue resistance.

[0029] The spring bracket 4 includes a seat plate 41 that can be detachably mounted on the side of the middle friction plate 8. The seat plate 41 is provided with a horizontally extending pressure plate 42, and the screw through hole 43 is opened on the pressure plate 42. The bottom surface of the pressure plate 42 is provided with a downwardly protruding reinforcement portion, and the bottom surface of the reinforcement portion is a horizontal surface. The upper part of the spring bracket 4 is provided with a locking nut 5 threadedly connected to the rebound adjustment bolt 2. The cooperation of the spring bracket 4 and the locking nut 5 helps to facilitate the assembly of the rebound adjustment bolt 2 and the compression spring on the device.

[0030] The boss is provided with a screw mounting hole 11 which is threadably matched with the rebound adjusting bolt 2, so as to facilitate the assembly of the rebound adjusting bolt 2 on the fixed disk 1.

[0031] The stroke length of the clamping plate 6 is 3 mm, and the stroke length of the spring bracket 4 is 1.5 mm, thereby ensuring that after ventilation, the friction surfaces of the outer friction block 7 and the inner friction block 9 form gaps with the adjacent components.

[0032] To sum up, the operating principle of the device is as follows: when there is no ventilation, the double-layer friction block brake is in a clamping braking state; when air is allowed to flow into the device, the clamping plate 6 moves 3mm away from the fixed disc 1; the spring bracket 4, under the rebound action of the compression spring, drives the middle friction plate 8 to move toward the side of the clamping plate 6, and at the same time, under the limiting action of the locking nut 5, the spring bracket 4 can move 1.5mm, thereby reserving gaps between the clamping plate 6 and the outer friction block 7, and between the middle friction plate 8 and the inner friction block 9.

[0033] The utility model discloses a rebound disengaging device for a double-layer friction block brake. After ventilation, the clamping plate and the outer friction block are separated. At this time, the rebound component supports the middle friction plate to separate from the inner friction block. At this time, a gap is left between the outer friction block and the clamping plate. This avoids the wear of the inner friction block when the press machine is in operation, thereby extending the service life.

[0034] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0035] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rebound release device for a double-layer friction block brake, comprising a clamping plate (6), an outer friction block (7), an intermediate friction plate (8), an inner friction block (9) and a fixed disc (1) arranged in sequence from top to bottom, characterized in that: The outer friction block (7) is mounted on the top surface of the middle friction disk (8), and the inner friction block (9) is mounted on the top surface of the fixed disk (1); a rebound component is connected between the outer side of the middle friction disk (8) and the fixed disk (1), and the rebound component can push the middle friction disk (8) to form a gap between the clamping disk (6) and the outer friction block (7) and between the middle friction disk (8) and the inner friction block (9) during ventilation.

2. A rebound release device for a double-layer friction pad brake according to claim 1, characterized in that: The rebound assembly comprises a vertical rebound adjustment bolt (2), the two ends of which are respectively connected to the middle friction disk (8) and the fixed disk (1), and a compression spring is sleeved on the rebound adjustment bolt (2).

3. A rebound release device for a double-layer friction pad brake according to claim 2, characterized in that: The compression spring is a rectangular spring (3).

4. A rebound release device for a double-layer friction pad brake according to claim 2, characterized in that: The rebound assembly also includes a spring bracket (4), which is connected to the middle friction plate (8) and the rebound adjustment bolt (2), and the bottom surface of the spring bracket (4) is in contact with the top end of the compression spring.

5. A rebound release device for a double-layer friction pad brake according to claim 4, characterized in that: The spring bracket (4) is provided with a screw through hole (43) allowing the rebound adjustment bolt (2) to pass through, and the upper part of the spring bracket (4) is provided with a locking nut (5) threadedly connected to the rebound adjustment bolt (2).

6. A rebound release device for a double-layer friction pad brake according to claim 5, characterized in that: The stroke length of the clamping plate (6) is 3 mm; the stroke length of the spring bracket (4) is 1.5 mm.

7. A rebound release device for a double-layer friction pad brake according to claim 5, characterized in that: The spring bracket (4) comprises a seat plate (41) which can be detachably mounted on the side of the middle friction disc (8), a horizontally extending pressure plate (42) is provided on the seat plate (41), and the screw through hole (43) is opened on the pressure plate (42).

8. A rebound release device for a double-layer friction pad brake according to claim 7, characterized in that: The bottom surface of the pressure plate (42) is provided with a downwardly protruding reinforcement portion, and the bottom surface of the reinforcement portion is a horizontal surface.

9. A rebound release device for a double-layer friction pad brake according to claim 7, characterized in that: The fixed disc (1) is provided with a boss extending outwards for supporting a rebound adjustment bolt (2).

10. A rebound release device for a double-layer friction pad brake according to claim 9, characterized in that: The boss is provided with a screw mounting hole (11) which is threadably matched with the rebound adjustment bolt (2).

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