High-temperature-resistant brake disc structure for electric hoist

Abstract

This utility model discloses a high-temperature resistant brake disc structure for electric hoists, relating to the technical field of brake disc structures. The high-temperature resistant brake disc structure for electric hoists includes a brake disc body with a braking component at its upper end. In use, the gradient heat dissipation hole group and centrifugal heat dissipation fins work together to effectively reduce the working temperature of the friction disc, preventing thermal deformation and cracking caused by high temperatures, and ensuring long-term stable operation of the brake disc body under high-frequency, heavy-load braking scenarios of electric hoists. The arc-shaped convex strip enhances the structural strength of the friction disc, disperses thermal and mechanical stress, prevents disc cracking, adapts to complex working conditions of electric hoists, extends the service life of the brake disc, reduces replacement frequency, and lowers maintenance costs.

Description

Technical Field

[0001] This utility model specifically relates to the field of brake disc structure technology, and more specifically to a high-temperature resistant brake disc structure for electric hoists. Background Technology

[0002] In industrial production, electric hoists are commonly used lifting equipment, and the performance of their braking systems directly affects operational safety. Traditional electric hoist brake discs are mostly made of ordinary cast iron. Under frequent start-stop and heavy-load operation scenarios, frictional heat during braking causes the disc temperature to rise sharply, easily leading to thermal deformation and cracks. This results in changes in braking clearance, reduced braking efficiency, and even brake failure, threatening the safety of personnel and equipment. Furthermore, traditional brake discs have simple heat dissipation structures, and heat accumulation accelerates component wear, requiring frequent replacements and increasing maintenance costs and downtime. In addition, the brake calipers and discs have poor compatibility, and hydraulic control response delays and uneven pressure distribution further affect braking stability. Utility Model Content

[0003] The purpose of this utility model is to provide a high-temperature resistant brake disc structure for electric hoists. By using the brake assembly in conjunction with the brake disc body, the high-temperature resistance, structural stability, and braking accuracy of the brake disc structure are improved, thereby solving the technical problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A high-temperature resistant brake disc structure for an electric hoist, comprising: Brake disc body, with a braking assembly at the upper end of the brake disc body; The brake disc body includes a friction disc, on both sides of which are arranged in a ring-shaped array of gradient heat dissipation holes in an arc shape. The gradient heat dissipation holes in the gradient heat dissipation hole group are designed with three different hole diameters, namely small holes, medium holes and large holes. The small holes, medium holes and large holes are respectively located on the friction surface, the middle layer and the back side of one side of the friction disc. The friction disc is also arranged in a ring-shaped array of arc-shaped ridges on both sides, and the gradient heat dissipation hole group and the arc-shaped ridges are arranged in an intersecting pattern.

[0005] As a further technical solution of this utility model, an installation interface is fixedly provided at the center of the friction disk, and centrifugal heat dissipation fins are arranged in a ring array between the back sides of the friction disk, with the centrifugal heat dissipation fins arranged in an arc shape.

[0006] As a further technical solution of this utility model, the upper end of the friction disc is provided with a caliper housing, and both the front and rear ends of the caliper housing are provided with hydraulic interfaces, wherein the hydraulic interface at the front end is connected to a hydraulic oil pipe.

[0007] As a further technical solution of this utility model, the caliper housing one is provided with a fastening bolt group and a connecting rod group respectively, and the other end of the fastening bolt group and the connecting rod group is connected to the caliper housing two. The caliper housing two is provided with hydraulic interface two at both the front and rear ends.

[0008] As a further technical solution of this utility model, the hydraulic interface two at the rear end is connected to one end of the delivery pipe, and the other end of the delivery pipe is connected to the hydraulic interface one at the rear end; the caliper housing one is internally connected to the caliper piston assembly one, which is correspondingly arranged on one side of the friction disc; the caliper housing two is internally connected to the caliper piston assembly two, which is correspondingly arranged on the other side of the friction disc.

[0009] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the gradient heat dissipation hole group and the centrifugal heat dissipation fins work together to effectively reduce the working temperature of the friction disc, avoid thermal deformation and cracks caused by high temperature, and ensure long-term stable operation of the brake disc body in the high-frequency and heavy-load braking scenarios of electric hoists; the arc-shaped convex strip enhances the structural strength of the friction disc, disperses thermal stress and mechanical stress, prevents the disc body from cracking, adapts to the complex working conditions of electric hoists, improves the service life of the brake disc, reduces the replacement frequency, and reduces maintenance costs. In this utility model, caliper housing 1 and caliper housing 2 are connected by a set of fastening bolts and a set of connecting rods to ensure the caliper centering accuracy, so that caliper piston assembly 1 and caliper piston assembly 2 synchronously squeeze the friction disc, the braking pressure is evenly distributed, the braking accuracy is improved, and the risk of brake failure due to uneven wear is avoided. In this invention, the hydraulic conveying route formed by hydraulic interface one and hydraulic interface two and the conveying pipe shortens the pressure transmission path. Combined with the rapid response of caliper piston assembly one and caliper piston assembly two, it achieves efficient execution of braking commands, improves the braking timeliness of the electric hoist, and ensures the safety of lifting operations. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0011] Figure 2 This utility model Figure 1 Top view.

[0012] Figure 3 This utility model Figure 2 Top view.

[0013] Figure 4 This utility model Figure 1 A schematic diagram of the split structure.

[0014] Figure 5 This utility model Figure 4 Top view.

[0015] Figure 6 This utility model Figure 5 A schematic diagram of the split structure.

[0016] Figure 7 This utility model Figure 6 A partial sectional view.

[0017] Figure 8 This utility model Figure 7 A magnified view of a portion of the image.

[0018] In the diagram: 1-Brake disc body, 2-Brake assembly; 11-Friction disc, 12-Gradient heat dissipation hole group, 13-Arc-shaped protrusion, 14-Mounting interface, 15-Centrifugal heat dissipation fins; 21-Caliper housing one, 22-Hydraulic interface one, 23-Fastening bolt assembly, 24-Connecting rod assembly, 25-Delivery pipe, 26-Caliper piston assembly one, 27-Hydraulic interface two, 28-Caliper housing two, 29-Caliper piston assembly two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-8 In this embodiment of the utility model, a high-temperature resistant brake disc structure for an electric hoist includes a brake disc body 1, and a brake assembly 2 is provided at the upper end of the brake disc body 1. The brake disc body 1 includes a friction disc 11. Both sides of the friction disc 11 are provided with a ring-shaped array of gradient heat dissipation holes 12 arranged in an arc shape. The gradient heat dissipation holes in the gradient heat dissipation hole group 12 are designed with three different hole diameters: small hole, medium hole, and large hole. The small hole, medium hole, and large hole are respectively located on the friction surface, the middle layer, and the back side of one side of the friction disc 11. Both sides of the friction disc 11 are provided with an arc-shaped ridge 13 arranged in a ring shape. The gradient heat dissipation hole group 12 and the arc-shaped ridge 13 are arranged in a cross pattern. The friction disk 11 is fixedly provided with an installation interface 14 at the center, and centrifugal heat dissipation fins 15 are arranged in a ring array between the back sides of the friction disk 11, with the centrifugal heat dissipation fins 15 arranged in an arc shape.

[0021] By adopting the above technical solution, during use, the gradient heat dissipation hole group 12 and the centrifugal heat dissipation fins 15 work together to effectively reduce the working temperature of the friction disc 11, avoid thermal deformation and cracks caused by high temperature, and ensure long-term stable operation of the brake disc body 1 under high-frequency and heavy-load braking scenarios of electric hoists; the arc-shaped convex strip 13 enhances the structural strength of the friction disc 11, disperses thermal stress and mechanical stress, prevents the disc body from cracking, adapts to the complex working conditions of electric hoists, improves the service life of the brake disc, reduces the replacement frequency, and reduces maintenance costs.

[0022] In this embodiment, the upper end of the friction disc 11 is provided with a caliper housing 21, and both the front and rear ends of the caliper housing 21 are provided with hydraulic interfaces 22, wherein the hydraulic interface 22 provided at the front end is connected to the hydraulic oil pipe. The caliper housing 21 is provided with a fastening bolt group 23 and a connecting rod group 24 respectively. The other end of the fastening bolt group 23 and the connecting rod group 24 is connected to the caliper housing 28. The caliper housing 28 is provided with a hydraulic interface 27 at both the front and rear ends.

[0023] By adopting the above technical solution, caliper housing 1 21 and caliper housing 28 are connected by fastening bolt group 23 and connecting rod group 24 to ensure caliper centering accuracy, so that caliper piston assembly 1 26 and caliper piston assembly 29 synchronously squeeze friction disc 11, the braking pressure is evenly distributed, the braking accuracy is improved, and the risk of brake failure due to uneven wear is avoided.

[0024] In this embodiment, the hydraulic interface 27 at the rear end is connected to one end of the delivery pipe 25, and the other end of the delivery pipe 25 is connected to the hydraulic interface 22 at the rear end; the caliper housing 21 is internally connected to the caliper piston assembly 26, which is correspondingly positioned on one side of the friction disc 11; the caliper housing 28 is internally connected to the caliper piston assembly 29, which is correspondingly positioned on the other side of the friction disc 11.

[0025] By adopting the above technical solution, the hydraulic transmission route formed by hydraulic interface 1 22 and hydraulic interface 27 and the transmission pipe 25 shortens the pressure transmission path. Combined with the rapid response of caliper piston assembly 1 26 and caliper piston assembly 29, it realizes the efficient execution of braking commands, improves the braking timeliness of electric hoists, and ensures the safety of lifting operations.

[0026] The working principle of this utility model is as follows: When the electric hoist needs to be braked, the hydraulic system inputs pressure to the caliper piston assembly 26 and the caliper piston assembly 29 through hydraulic interface 22 and hydraulic interface 27; the caliper piston assembly 26 and the caliper piston assembly 29 are hydraulically driven and simultaneously squeeze towards the disc body from both sides of the friction disc 11, so that the brake pads come into contact with the friction working surface of the friction disc 11, and the kinetic energy of the electric hoist is converted into heat energy by friction, thereby achieving deceleration and braking; after braking is completed, the hydraulic pressure is released, the piston assembly is reset, and the brake pads are separated from the friction disc 11; When the brake generates heat, the small holes in the gradient heat dissipation hole group 12 of the friction disc 11 quickly absorb the heat from the friction surface and conduct it to the inside, the medium holes accelerate the heat convection, and the large holes work with the airflow around the electric hoist to powerfully expel the heat; the arc-shaped convex strip 13 increases the surface area of ​​the disc body and assists in heat dissipation; the centrifugal heat dissipation fins 15 rotate with the friction disc 11 and use centrifugal force to throw the heat of the disc body to the outside, while guiding cold air in to form forced convection. The multi-structure synergy reduces the temperature of the brake disc body 1 and ensures stable braking performance at high temperatures; During use, the gradient heat dissipation hole group 12 and the centrifugal heat dissipation fins 15 work together to effectively reduce the working temperature of the friction disc 11, avoid thermal deformation and cracks caused by high temperature, and ensure long-term stable operation of the brake disc body 1 under high-frequency and heavy-load braking scenarios of electric hoists; the arc-shaped convex strip 13 enhances the structural strength of the friction disc 11, disperses thermal stress and mechanical stress, prevents the disc body from cracking, adapts to the complex working conditions of electric hoists, improves the service life of the brake disc, reduces the replacement frequency, and reduces maintenance costs; Caliper housing 1 21 and caliper housing 28 are connected by fastening bolt group 23 and connecting rod group 24 to ensure caliper centering accuracy, so that caliper piston assembly 1 26 and caliper piston assembly 29 synchronously squeeze friction disc 11, the braking pressure is evenly distributed, the braking accuracy is improved, and the risk of brake failure due to uneven wear is avoided. The hydraulic transmission route formed by hydraulic interface 1 22 and hydraulic interface 27 and the transmission pipe 25 shortens the pressure transmission path. Together with caliper piston assembly 1 26 and caliper piston assembly 29, it enables rapid response, realizes efficient execution of braking commands, improves the braking timeliness of the electric hoist, and ensures the safety of lifting operations.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-temperature resistant brake disc structure for an electric hoist, characterized in that: include Brake disc body (1), the upper end of which is provided with a brake assembly (2); The brake disc body (1) includes a friction disc (11). Both sides of the friction disc (11) are provided with a gradient heat dissipation hole group (12) arranged in an arc in a ring array. The gradient heat dissipation holes in the gradient heat dissipation hole group (12) are designed with three different hole diameters, namely small hole, medium hole and large hole. The small hole, medium hole and large hole are respectively provided on the friction surface, the middle layer and the back side of one side of the friction disc (11). Both sides of the friction disc (11) are provided with an arc-shaped protrusion (13) arranged in a ring array. The gradient heat dissipation hole group (12) and the arc-shaped protrusion (13) are arranged in a cross pattern.

2. The high-temperature resistant brake disc structure for electric hoists according to claim 1, characterized in that: The friction disk (11) is fixedly provided with an installation interface (14) at the center, and centrifugal heat dissipation fins (15) are arranged in a ring array between the back sides of the friction disk (11), and the centrifugal heat dissipation fins (15) are arranged in an arc shape.

3. The high-temperature resistant brake disc structure for electric hoists according to claim 2, characterized in that: The friction disc (11) is provided with a caliper housing (21) at the upper end. Both ends of the caliper housing (21) are provided with hydraulic interfaces (22), wherein the hydraulic interface (22) at the front end is connected to the hydraulic oil pipe.

4. The high-temperature resistant brake disc structure for electric hoists according to claim 3, characterized in that: The caliper housing 1 (21) is provided with a fastening bolt group (23) and a connecting rod group (24). The other end of the fastening bolt group (23) and the connecting rod group (24) is connected to the caliper housing 2 (28). The caliper housing 2 (28) is provided with a hydraulic interface 2 (27) at both the front and rear ends.

5. The high-temperature resistant brake disc structure for electric hoists according to claim 4, characterized in that: The second hydraulic interface (27) at the rear end is connected to one end of the delivery pipe (25), and the other end of the delivery pipe (25) is connected to the first hydraulic interface (22) at the rear end; the first caliper housing (21) is connected to the first caliper piston assembly (26), which is correspondingly arranged on one side of the friction disc (11); the second caliper housing (28) is connected to the second caliper piston assembly (29), which is correspondingly arranged on the other side of the friction disc (11).

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