End cover and brake disc integrated structure of permanent magnet electric roller

Abstract

The invention relates to the technical field of motor braking, in particular to a permanent magnet electric roller end cover and brake disc integrated structure which comprises a roller end cover, a brake disc and a cooling mechanism. The roller end cover is rotationally connected with a mounting shaft; the brake disc is fixedly connected with one side of the roller end cover; the cooling mechanism is arranged on the mounting shaft and extends to the brake disc; the cooling mechanism comprises a supporting disc, a liquid inlet assembly, a liquid return assembly and a cooling disc. The supporting disc is fixedly connected with the mounting shaft, one end of the liquid inlet assembly is connected with the supporting disc, one end of the liquid return assembly is connected with the supporting disc, the cooling disc is arranged in the brake disc, one end of the liquid inlet assembly is communicated with the cooling disc, and one end of the liquid return assembly is communicated with the cooling disc. The cooling mechanism is matched with the brake disc, heat dissipation of the brake disc is accelerated in a liquid cooling mode, the braking effect of the brake disc is improved, the phenomenon of deformation or cracking of the brake disc is reduced, and the service life of the brake disc is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of motor braking, and in particular to an integrated structure of a permanent magnet electric drum end cover and a brake disc. Background Art

[0002] Permanent magnet electric roller is an industrial equipment, usually used in conveyor belt system to provide driving force and convey materials. It uses permanent magnet motor as power source, and permanent magnet electric roller uses permanent magnet motor, which has the characteristics of high efficiency and high performance.

[0003] The Chinese patent with the announcement number CN211619132U discloses a permanent magnet drum with a brake disc and a backstop, the permanent magnet drum comprises a main shaft and a drum body sleeved on the main shaft; the permanent magnet drum also comprises end covers sleeved near the two ends of the main shaft, a brake disc is respectively arranged between the drum body and the end covers near the two ends, each of the brake discs is respectively connected to the end cover near the end where it is located, wherein the end cover near one end is provided with a backstop along the outer side of the main shaft axis, and the backstop is connected to the end cover near the end where it is located and the main shaft. The permanent magnet drum adopts an integrated device of backstop and brake disc, and backstops and brake discs of different sizes are selected and installed according to the different diameters of the permanent magnet drum and the bandwidth of the belt conveyor.

[0004] However, the above technical solution has the following shortcomings: the brake disc only relies on simple air convection to dissipate heat, and the heat dissipation effect is poor. When braking, the heat generated cannot be dissipated in time, which will increase the temperature of the brake disc, which not only affects the braking effect of the brake disc, but also easily causes deformation or cracking, thereby reducing the service life of the brake disc. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the background technology and to provide a permanent magnet electric drum end cover and brake disc integrated structure.

[0006] The technical solution of the present invention is a permanent magnet electric drum end cover and brake disc integrated structure, comprising:

[0007] a drum end cover rotatably connected to a mounting shaft;

[0008] A brake disc fixedly connected to one side of the drum end cover;

[0009] A cooling mechanism is arranged on the mounting shaft, and the cooling mechanism extends to the brake disc to dissipate heat from the brake disc;

[0010] The cooling mechanism includes a supporting plate, a liquid inlet assembly, a liquid return assembly and a cooling plate; the supporting plate is fixedly connected to the mounting shaft, one end of the liquid inlet assembly is connected to the supporting plate, one end of the liquid return assembly is connected to the supporting plate, the cooling plate is arranged in the brake disc, one end of the liquid inlet assembly is connected to the cooling plate, and one end of the liquid return assembly is connected to the cooling plate.

[0011] Preferably, the brake disc includes a connecting tube, a first disc body and a second disc body; one end of the connecting tube is fixedly connected to the drum end cover, the first disc body and the second disc body are both fixedly connected to the connecting tube, a heat dissipation cavity is formed between the first disc body and the second disc body, and the cooling disc is arranged in the heat dissipation cavity.

[0012] Preferably, a plurality of reinforcing ribs are provided between the first plate body and the second plate body, and two ends of the reinforcing ribs are fixedly connected to the first plate body and the second plate body respectively.

[0013] Preferably, the liquid inlet assembly includes a liquid inlet cylinder, a connecting ring and a liquid inlet pipe; the liquid inlet cylinder is fixedly connected to the roller end cover, the liquid inlet cylinder is connected to the cooling plate, the connecting ring is rotatably connected to the liquid inlet cylinder, one end of the liquid inlet pipe is connected to the connecting ring, and the other end of the liquid inlet pipe passes through the support plate and is slidably connected to the support plate.

[0014] Preferably, it also includes a fitting spring, wherein a plurality of fitting springs are provided, one end of the fitting spring is fixedly connected to the support plate, and the other end of the fitting spring is fixedly connected to the connecting ring.

[0015] Preferably, the connecting ring is fixedly connected to a guide rod, and one end of the guide rod away from the connecting ring passes through the supporting plate and is slidably connected to the supporting plate.

[0016] Preferably, the liquid return assembly has the same structure as the liquid inlet assembly, the liquid return assembly is larger than the liquid inlet assembly and is arranged on the outer ring of the liquid inlet assembly.

[0017] Preferably, the inlet and outlet of the cooling plate both pass through the drum end cover and are respectively connected to the liquid inlet assembly and the liquid return assembly.

[0018] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0019] The present invention cooperates with the setting of the brake disc through the cooling mechanism, and the coolant enters the cooling disc through the liquid inlet pipe, the connecting ring and the liquid inlet cylinder. The coolant entering the cooling disc exchanges heat with the brake disc and then flows out from the liquid inlet assembly. The heat dissipation of the brake disc is accelerated by liquid cooling, the braking effect of the brake disc is improved, the deformation or cracking of the brake disc is reduced, and the service life of the brake disc is increased. The heat dissipation area of ​​the brake disc is increased by the design of the double disc surface of the brake disc, and the heat dissipation effect of the brake disc is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A perspective view of an embodiment of the present invention;

[0021] Figure 2 A cross-sectional view of an embodiment of the present invention;

[0022] Figure 3 A partial perspective view of a brake disc in an embodiment of the present invention;

[0023] Figure 4 A three-dimensional diagram of a liquid inlet assembly and a liquid return assembly in an embodiment of the present invention;

[0024] Figure 5 A cross-sectional view of a liquid inlet cylinder in an embodiment of the present invention;

[0025] Figure 6 A three-dimensional diagram of a cooling plate in an embodiment of the present invention.

[0026] Figure numerals: 1. drum end cover; 2. mounting shaft; 3. brake disc; 31. connecting cylinder; 32. first disc body; 33. second disc body; 34. reinforcing ribs; 4. cooling mechanism; 41. supporting disc; 42. liquid inlet assembly; 421. liquid inlet cylinder; 422. connecting ring; 423. liquid inlet pipe; 424. fitting spring; 425. guide rod; 43. liquid return assembly; 44. cooling disc. DETAILED DESCRIPTION

[0027] Embodiment 1, as Figure 1-5 As shown, a permanent magnet electric drum end cover and brake disc integrated structure proposed by the present invention comprises a drum end cover 1, a brake disc 3 and a cooling mechanism 4;

[0028] The drum end cover 1 is rotatably connected with a mounting shaft 2;

[0029] The brake disc 3 is fixedly connected to one side of the drum end cover 1;

[0030] The cooling mechanism 4 is arranged on the mounting shaft 2, and the cooling mechanism 4 extends to the brake disc 3 for dissipating heat from the brake disc 3;

[0031] The cooling mechanism 4 includes a supporting plate 41, a liquid inlet component 42, a liquid return component 43 and a cooling plate 44; the supporting plate 41 is fixedly connected to the mounting shaft 2, one end of the liquid inlet component 42 is connected to the supporting plate 41, one end of the liquid return component 43 is connected to the supporting plate 41, the cooling plate 44 is arranged in the brake disc 3, one end of the liquid inlet component 42 is connected to the cooling plate 44, one end of the liquid return component 43 is connected to the cooling plate 44, the liquid return component 43 has the same structure as the liquid inlet component 42, the size of the liquid return component 43 is larger than the liquid inlet component 42 and is arranged on the outer ring of the liquid inlet component 42, the inlet and outlet of the cooling plate 44 both pass through the drum end cover 1 and are respectively connected to the liquid inlet component 42 and the liquid return component 43, and the other ends of the liquid inlet component 42 and the liquid return component 43 are connected to the cooling liquid circulation system.

[0032] Embodiment 2, as Figure 1-2 As shown, the present invention proposes a permanent magnet electric drum end cover and brake disc integrated structure. Compared with the first embodiment, this embodiment also includes the structure of the brake disc 3, the brake disc 3 includes a connecting cylinder 31, a first disc body 32 and a second disc body 33; one end of the connecting cylinder 31 is fixedly connected to the drum end cover 1, the first disc body 32 and the second disc body 33 are both fixedly connected to the connecting cylinder 31, a heat dissipation cavity is formed between the first disc body 32 and the second disc body 33, a cooling disc 44 is arranged in the heat dissipation cavity, a plurality of reinforcing ribs 34 are arranged between the first disc body 32 and the second disc body 33, and the two ends of the reinforcing ribs 34 are respectively fixedly connected to the first disc body 32 and the second disc body 33.

[0033] Embodiment three, as Figure 1-2 As shown, a permanent magnet electric drum end cover and brake disc integrated structure proposed by the present invention, compared with the second embodiment, this embodiment also includes the structure of a liquid inlet component 42, the liquid inlet component 42 includes a liquid inlet cylinder 421, a connecting ring 422, a liquid inlet pipe 423 and a fitting spring 424; the liquid inlet cylinder 421 is fixedly connected to the drum end cover 1, the liquid inlet cylinder 421 is communicated with the cooling disk 44, the connecting ring 422 is rotatably connected to the liquid inlet cylinder 421, one end of the liquid inlet pipe 423 is communicated with the connecting ring 422, the other end of the liquid inlet pipe 423 passes through the support disk 41 and is slidably connected to the support disk 41, a plurality of fitting springs 424 are provided, one end of the fitting spring 424 is fixedly connected to the support disk 41, the other end of the fitting spring 424 is fixedly connected to the connecting ring 422, the connecting ring 422 is fixedly connected with a guide rod 425, and the end of the guide rod 425 away from the connecting ring 422 passes through the support disk 41 and is slidably connected to the support disk 41.

[0034] During the process of the brake disc 3 rotating with the drum end cover 1, the connecting ring 422 is fitted with the liquid inlet cylinder 421 under the action of the fitting spring 424 to ensure the sealing of the coolant passage. During the braking process, the first disc body 32 and the second disc body 33 interact with the brake pad to generate a large amount of heat. The gas flow in the heat dissipation cavity between the first disc body 32 and the second disc body 33 exchanges heat with the external air, and the first disc body 32 and the second disc body 33 are cooled and cooled. The coolant enters the cooling disc 44 through the liquid inlet pipe 423, the connecting ring 422 and the liquid inlet cylinder 421. The coolant entering the cooling disc 44 exchanges heat with the first disc body 32 and the second disc body 33 and then flows out from the liquid inlet assembly 42, and further cools the first disc body 32 and the second disc body 33.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A permanent magnet electric drum end cover and brake disc integrated structure, characterized in that: include: A drum end cover (1) rotatably connected to a mounting shaft (2); A brake disc (3) fixedly connected to one side of the drum end cover (1); A cooling mechanism (4) is arranged on the mounting shaft (2), and the cooling mechanism (4) extends to the brake disc (3) to dissipate heat from the brake disc (3); The cooling mechanism (4) comprises a support plate (41), a liquid inlet assembly (42), a liquid return assembly (43) and a cooling plate (44); the support plate (41) is fixedly connected to the mounting shaft (2), one end of the liquid inlet assembly (42) is connected to the support plate (41), one end of the liquid return assembly (43) is connected to the support plate (41), the cooling plate (44) is arranged in the brake plate (3), one end of the liquid inlet assembly (42) is connected to the cooling plate (44), and one end of the liquid return assembly (43) is connected to the cooling plate (44).

2. The permanent magnet electric drum end cover and brake disc integrated structure according to claim 1 is characterized in that: The brake disc (3) comprises a connecting tube (31), a first disc body (32) and a second disc body (33); one end of the connecting tube (31) is fixedly connected to the drum end cover (1); the first disc body (32) and the second disc body (33) are both fixedly connected to the connecting tube (31); a heat dissipation cavity is formed between the first disc body (32) and the second disc body (33); and a cooling disc (44) is arranged in the heat dissipation cavity.

3. The permanent magnet electric drum end cover and brake disc integrated structure according to claim 2 is characterized in that: A plurality of reinforcing ribs (34) are arranged between the first disk body (32) and the second disk body (33), and two ends of the reinforcing ribs (34) are fixedly connected to the first disk body (32) and the second disk body (33) respectively.

4. The permanent magnet electric drum end cover and brake disc integrated structure according to claim 1 is characterized in that: The liquid inlet assembly (42) comprises a liquid inlet cylinder (421), a connecting ring (422) and a liquid inlet pipe (423); the liquid inlet cylinder (421) is fixedly connected to the roller end cover (1), the liquid inlet cylinder (421) is connected to the cooling plate (44), the connecting ring (422) is rotatably connected to the liquid inlet cylinder (421), one end of the liquid inlet pipe (423) is connected to the connecting ring (422), and the other end of the liquid inlet pipe (423) passes through the supporting plate (41) and is slidably connected to the supporting plate (41).

5. The permanent magnet electric drum end cover and brake disc integrated structure according to claim 4 is characterized in that: It also includes a fitting spring (424), a plurality of fitting springs (424) are provided, one end of the fitting spring (424) is fixedly connected to the support plate (41), and the other end of the fitting spring (424) is fixedly connected to the connecting ring (422).

6. The permanent magnet electric drum end cover and brake disc integrated structure according to claim 5 is characterized in that: The connecting ring (422) is fixedly connected to a guide rod (425), and one end of the guide rod (425) away from the connecting ring (422) penetrates the supporting plate (41) and is slidably connected to the supporting plate (41).

7. The permanent magnet electric drum end cover and brake disc integrated structure according to claim 1 is characterized in that: The liquid return component (43) has the same structure as the liquid inlet component (42). The liquid return component (43) is larger than the liquid inlet component (42) and is arranged on the outer ring of the liquid inlet component (42).

8. The permanent magnet electric drum end cover and brake disc integrated structure according to claim 1 is characterized in that: The inlet and outlet of the cooling plate (44) both penetrate the drum end cover (1) and are respectively connected to the liquid inlet assembly (42) and the liquid return assembly (43).

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