Elevator band-type brake flywheel structure

Abstract

The utility model discloses an elevator band-type brake flywheel structure which comprises a brake disc which acts on a driving part to drive rotation and a band-type brake body which is formed by a brake piece which is arranged on the outer side of the brake disc and adopts the electromagnetic braking principle. The brake disc comprises a flywheel and a plurality of pressing plates which are arranged on the periphery of the flywheel in a surrounding mode. Gear teeth are arranged on the flywheel, outer edges are arranged on the two sides of the gear teeth in a surrounding mode, a plurality of sets of sliding grooves matched with the gear teeth are formed in the pressing plate, and the pressing plate is arranged on the corresponding gear teeth of the flywheel in a sliding mode through a plurality of connecting rods correspondingly arranged on the outer edges of the two sides of the flywheel and matched compressed springs arranged on the peripheries of the connecting rods in a sleeving mode. The brake pad comprises a fixed seat arranged on the periphery of the brake disc and two groups of calipers which relatively slide on the fixed seat along two sides of the brake disc through electromagnets arranged on the fixed seat, arc-shaped surfaces matched with the brake disc are arranged on the calipers, and a plurality of clamping teeth matched with wheel teeth on the flywheel are uniformly arranged on the arc-shaped surfaces.

Description

Technical Field

[0001] The utility model relates to the field of elevators, and particularly to an elevator brake flywheel structure. Background Art

[0002] In the elevator industry, the brake system is one of the key components to ensure the safe operation of elevators. Its main function is to lock the elevator car or counterweight by mechanical force when the elevator stops running, preventing accidental movement. Most of the elevator brake structures widely used in the current market rely on the electromagnetic braking principle, that is, using electromagnetic force to attract the brake pads to contact or separate from the brake disc to achieve braking and release. However, usually when braking under the electromagnetic action, the brake pads directly contact the surface of the brake disc for locking. On the one hand, it causes great damage to the brake disc and brake pads, and long-term wear is likely to have a certain impact on the braking effect; on the other hand, when the traditional brake disc and brake pad structures contact during braking, usually a certain buffering time is required, the braking distance is long, and the generated noise is also large. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an elevator brake flywheel structure, which can further improve the braking effect while reducing the wear degree on the acting elements, reducing the braking distance and appropriately reducing the generated working noise.

[0004] The technical solution adopted by the utility model to solve the above problems is:

[0005] An elevator brake flywheel structure includes a brake disc that rotates under the drive of a driving component and a brake main body formed by brake pads using the electromagnetic braking principle on the outside of the brake disc. The brake disc includes a flywheel and a plurality of pressing plates arranged around its periphery. The flywheel is provided with teeth and has an outer edge arranged along both sides of the teeth. The pressing plates are provided with multiple groups of sliding grooves adapted to the teeth and are slidably arranged on the corresponding teeth of the flywheel through a plurality of connecting rods correspondingly arranged on the outer edges on both sides of the flywheel and compression springs sleeved around the connecting rods. The brake pads include a fixed seat arranged on the periphery of the brake disc and two groups of calipers that slide relatively along both sides of the brake disc on the fixed seat through electromagnets arranged on the fixed seat. The calipers are provided with arc surfaces adapted to the brake disc, and a plurality of teeth adapted to the teeth on the flywheel are evenly arranged on the arc surfaces.

[0006] Further: The cross-section of the caliper and the corresponding teeth thereon is larger than the cross-section of the corresponding teeth on the flywheel.

[0007] Further: The tooth grooves of the caliper and the corresponding teeth thereon are smaller than the tooth grooves of the corresponding teeth on the flywheel.

[0008] Furthermore, the pressing plate is detachably installed on the outer edges on both corresponding sides of the flywheel through a locking fastener rotatably arranged at the head end of the connecting rod.

[0009] Furthermore, the connecting rod is installed on the outer edges on both corresponding sides of the flywheel through a detachable structure.

[0010] Compared with the prior art, the present utility model has the following advantages and effects:

[0011] The present utility model is a flywheel structure of an elevator brake. This kind of elevator brake further improves the flywheel structure corresponding to the main body of the conventional elevator brake. The corresponding flywheel, its peripheral teeth and pressing plate structure on the brake disc, and the structure of several teeth on the corresponding caliper arc surface of the brake pad are arranged. It can not only further improve the matching degree and contact effect between the brake disc and the brake pad, effectively reduce the braking distance, and thus further improve the braking effect of the main body of this kind of brake, but also further reduce the concentrated stress, relative movement distance and wear degree generated when the caliper contacts the flywheel during the braking process, and appropriately reduce the generated working noise. In addition, several pressing plates arranged around the periphery of the flywheel can also play a certain guiding and protective role for the corresponding teeth on the flywheel, further improve the bearing capacity and structural strength of the teeth on the flywheel, and improve the running stability and braking effect of the main body of this kind of brake. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of a flywheel structure of an elevator brake according to an embodiment of the present utility model.

[0013] Figures 2-3 is the partial enlarged view of the main body of the brake according to an embodiment of the present utility model.

[0014] Figure 4 is the enlarged exploded view of the connecting rod and the pressing plate connected thereto on the outer edge of the flywheel according to an embodiment of the present utility model.

[0015] Reference Numerals in the Drawings: Driving Component 100, Brake Disc 1, Flywheel 11, Teeth 111, Outer Edge 112, Threaded Hole 1121, Pressing Plate 12, Chute 121, Connecting Rod 13, Compression Spring 131, Locking Fastener 132, Brake Pad 2, Fixed Seat 21, Electromagnet 211, Caliper 212, Teeth 2121. Detailed Description of the Embodiment

[0016] The following further describes the present utility model in detail with reference to the drawings and through embodiments. The following embodiments are explanations of the present utility model and the present utility model is not limited to the following embodiments.

[0017] See Figures 1-3, this embodiment relates to a structure of an elevator brake flywheel 11, including a brake main body formed by a brake disc 1 that is driven to rotate by a driving component 100 and brake pads 2 that adopt the electromagnetic braking principle on the outer side of the brake disc 1. The brake disc 1 includes a flywheel 11 and a plurality of pressing plates 12 arranged around its periphery. The flywheel 11 is provided with teeth 111 and an outer edge 112 is arranged around both sides of the teeth 111. The pressing plates 12 are provided with multiple groups of sliding grooves 121 adapted to the teeth 111 and are slidably arranged on the corresponding teeth 111 of the flywheel 11 through a plurality of connecting rods 13 correspondingly arranged on the outer edges 112 on both sides of the flywheel 11 and compression springs 131 sleeved around the connecting rods 13. The brake pads 2 include a fixed seat 21 arranged on the periphery of the brake disc 1 and two groups of calipers 212 that slide relatively along both sides of the brake disc 1 on the fixed seat 21 through an electromagnet 211 arranged on the fixed seat 21. The calipers 212 are provided with an arc surface adapted to the brake disc 1, and a plurality of teeth 2121 adapted to the teeth 111 on the flywheel 11 are uniformly arranged on the arc surface.

[0018] Specifically in this embodiment, as Figure 1 shown in the overall structure of this brake main body, specifically during operation, the driving component 100 can drive the brake disc 1 to rotate. When braking, the calipers 212 can slide relatively along both sides of the brake disc 1 and contact its surface under the action of the electromagnet 211 on the corresponding fixed seat 21. During the movement of the calipers 212, reference can be made to Figure 2 and Figure 3As shown in the figure, a number of teeth 2121 provided on the arc surfaces of the two groups of calipers 212 come into contact with the surfaces of a corresponding number of pressure plates 12 surrounded at corresponding positions on the periphery of the flywheel 11 during the movement process. As the two groups of calipers 212 move, under the relative pressure of the number of teeth 2121 on the corresponding arc surfaces of the calipers 212, the pressure plates 12 can slide correspondingly along the connecting rods 13 corresponding to the outer edges 112 on both sides of the flywheel 11. At the same time, when the pressure plates 12 are pressed and slide in the corresponding direction, the corresponding teeth 111 on the flywheel 11 can pass through a number of chutes 121 provided correspondingly on the pressure plates 12 and leak out along the outside, and come into contact with and engage with a number of teeth 2121 arranged uniformly on the corresponding arc surfaces of the calipers 212, so that the flywheel 11 stops rotating under the braking of the corresponding calipers 212 to achieve the braking process; on the contrary, when it is necessary to continue running, the two groups of calipers 212 can move in the direction away from the brake disc 1 on both sides of the fixed seat 21 under the action of the electromagnets 211 on the fixed seat 21. The brake disc 1 can continue to rotate under the drive of the driving component 100. At the same time, as the calipers 212 move, the corresponding pressure plates 12 on the outer edges 112 on both sides of the flywheel 11 can return to the initial position under the action of the adaptor compression springs 131 sleeved on the periphery of the corresponding connecting rods 13. At the same time, the teeth 111 at the corresponding positions on the flywheel 11 can retract into the corresponding chutes 121 on the pressure plates 12 as the pressure plates 12 move in the corresponding direction, so as to complete the entire working process. This kind of elevator brake further improves the structure of the flywheel 11 corresponding to the main body of the conventional elevator brake. The structure of the brake disc 1 corresponding to the flywheel 11, its peripheral teeth 111 and the pressure plates 12, in cooperation with the structure of a number of teeth 2121 on the arc surfaces of the corresponding calipers 212 in the brake pads 2, can not only further improve the adaptability and contact effect between the brake disc 1 and the brake pads 2, effectively reduce the braking distance, and thus further improve the braking effect of the main body of this kind of brake, but also further reduce the concentrated stress, relative movement distance and wear degree generated when the calipers 212 and the flywheel 11 come into contact during the braking process, and appropriately reduce the generated working noise. In addition, a number of pressure plates 12 surrounded on the periphery of the flywheel 11 can also play a certain guiding and protecting role for the corresponding teeth 111 on the flywheel 11, further improving the bearing capacity and structural strength of the teeth 111 on the flywheel 11, and improving the running stability and braking effect of the main body of this kind of brake.

[0019] The cross-section of the caliper 212 and the corresponding teeth 2121 thereon is larger than the cross-section of the corresponding teeth 111 on the flywheel 11. Adopting this setting method can, on the one hand, further improve the overall structural strength of the caliper 212, and on the other hand, can also further improve the braking effect of the caliper 212 on the flywheel 11, reduce the phenomenon of tooth skipping, and thus effectively reduce the braking distance.

[0020] The caliper 212 and the tooth grooves corresponding to the corresponding teeth 2121 thereon are smaller than the tooth grooves of the corresponding teeth 111 on the flywheel 11. This setting method can further improve the connection compactness between the corresponding teeth 2121 on the caliper 212, and when it contacts the corresponding teeth 111 on the flywheel 11, it has an appropriate buffering effect, reducing the direct stress generated when the teeth 2121 and the teeth 111 are in direct contact and the wear degree caused thereby, and improving the acting stability and its acting effect.

[0021] See Figure 4 , the pressing plate 12 is detachably installed on the outer edges 112 on both corresponding sides of the flywheel 11 through a locking member 132 rotatably provided at the head end of the connecting rod 13. The locking member 132 can be a bolt and is rotatably provided at the head end of the connecting rod 13 through a threaded structure, and at the same time, the corresponding pressing plate 12 is fastened to the connecting rod 13. The pressing plate 12 provided with such a detachable structure can facilitate operations such as installation, disassembly, and replacement, facilitate daily inspection and later maintenance, improve the convenience and flexibility during the operation process, and meet different usage requirements.

[0022] The connecting rod 13 is installed on the outer edges 112 on both sides of the flywheel 11 through a detachable structure. As Figure 4 shown in, the connecting rod 13 is rotatably provided on the threaded holes 1121 provided on the outer edges 112 on both sides of the flywheel 11 through a threaded structure to be fixed. The connecting rod 13 provided with such a detachable structure can facilitate operations such as installation, disassembly, and replacement, and improve the disassembly flexibility of the brake disc 1.

[0023] The above content described in this specification is only an example of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them. As long as it does not deviate from the content of this specification of the present utility model or exceed the scope defined by this claim book, it shall fall within the protection scope of the present utility model.

Claims

1. An elevator brake flywheel structure, comprising a brake disc driven by a driving component and a brake body formed by a brake pad on the outer side of the brake disc using an electromagnetic brake principle, characterized in that: The brake disc comprises a flywheel and a plurality of pressure plates arranged around its periphery, the flywheel is provided with gear teeth and an outer edge is arranged around both sides of the gear teeth, the pressure plate is provided with a plurality of groups of slide grooves adapted to the gear teeth and is slidably arranged on the corresponding gear teeth of the flywheel through a plurality of connecting rods correspondingly arranged on the outer edges on both sides of the flywheel and adaptable compression springs arranged on the periphery of the connecting rods, the brake pad comprises a fixed seat arranged around the brake disc and two groups of calipers sliding relatively along both sides of the brake disc on the fixed seat through an electromagnet arranged on the fixed seat, the caliper is provided with an arcuate surface adapted to the brake disc, and a plurality of teeth adapted to the gear teeth on the flywheel are evenly arranged on the arcuate surface.

2. The elevator brake flywheel structure according to claim 1, characterized in that: The cross section of the caliper and the corresponding teeth thereon is larger than the cross section of the corresponding gear teeth on the flywheel.

3. The elevator brake flywheel structure according to claim 2, characterized in that: The tooth grooves of the caliper and the corresponding teeth thereon are smaller than the tooth grooves of the corresponding gear teeth on the flywheel.

4. The elevator brake flywheel structure according to claim 1, characterized in that: The pressing plate is detachably mounted on the outer edges of the two sides corresponding to the flywheel by rotating the locking pieces arranged at the head end of the connecting rod.

5. The elevator brake flywheel structure according to claim 4, characterized in that: The connecting rod is installed on the corresponding outer edges of both sides of the flywheel through a detachable structure.

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