Energy-saving elevator brake

Abstract

The utility model discloses an energy-saving elevator brake, which relates to the technical field of elevator brakes and particularly comprises an L-shaped bottom plate, the L-shaped bottom plate is formed by integrating a longitudinal plate and a transverse plate, and brake arms are movably connected to two sides of the surface of the transverse plate on one side of the L-shaped bottom plate. The first connecting support is stressed to move downwards through cooperation of the brake assembly and the magnet, and the upper arm pull rod at the lower end is extruded, so that the upper arm pull rod transmits force to the second connecting support. The force borne by the first auxiliary bracket at the other end is shifted by the weight of the warping plate, and the force borne by the second auxiliary bracket is connected to a pin seat, and at the moment, a connecting rod connected with the second auxiliary bracket drives a brake convex block in a control shell to move upwards and is clamped at sawteeth on the surface of a traction brake wheel; the problems that due to magnetic attraction, electromagnetic attraction force of the static iron is not uniform, a friction plate is eccentrically abraded, braking force is insufficient when the friction plate is seriously abraded, and potential safety hazards of an elevator are caused are solved, and the safety efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator brakes, in particular to an energy-saving elevator brake. Background Art

[0002] Escalators are widely used in shopping malls, airports, stations, tourist attractions, etc. As is known in the industry, during the operation of escalators, there may be situations such as drive chain breakage, main engine working brake failure, main engine overspeed, sudden power failure, main engine reversal during the upward process, although the probability of such situations is extremely low or even negligible.

[0003] Existing elevator brakes will wear out quickly after long-term repeated fatigue shearing, which will cause the gap between the armature and the stationary iron to change after long-term use of the elevator brake. If the air gap changes, the electromagnetic attraction of the stationary iron will be uneven, resulting in eccentric wear of the friction plate, which will lead to insufficient braking force in severe cases, causing safety hazards to the elevator. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides an energy-saving elevator brake, in order to solve the problem that the existing elevator brake will accelerate wear after long-term repeated fatigue shearing, which will cause the gap between the armature and the static iron to change after long-term use of the elevator brake. If the air gap changes, the electromagnetic attraction of the static iron will be uneven, resulting in eccentric wear of the friction plate, which will lead to insufficient braking force in severe cases, causing potential safety hazards of the elevator.

[0005] Technical Solution

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: an energy-saving elevator brake comprises an L-shaped bottom plate, the L-shaped bottom plate is integrated with a longitudinal plate and a transverse plate, brake arms are movably connected to the surface of the transverse plate on one side of the L-shaped bottom plate, through grooves are provided on the top of one side surface of the two brake arms, a brake rod is fixedly connected to the inner side wall of the through groove, one end of the brake rod is movably connected to a magnetic base, a magnet is fixedly installed on the upper surface of the magnetic base, a traction brake wheel is fixedly installed on the surface of one side of the brake arm, through grooves are provided on both sides of the traction brake wheel, a brake disc is fixedly installed on the inner bottom wall of the through groove on the surface of the traction brake wheel, a connecting cavity is provided on both sides of the brake disc, a connecting piece is fixedly installed on one side of the traction brake wheel close to the brake disc, connecting screws are fixedly installed on both sides of the inner bottom wall of the connecting cavity, the outer arc surface of the connecting screw is provided with threads, the connecting screw is connected to the arc plate through threads, and the area formed by the connection of the arc plates forms a connecting cavity.

[0007] Optionally, the traction brake wheel is composed of two semicircles and are distributed in a mirror-symmetrical manner. The outer arc surface of the traction brake wheel is provided with a plurality of serrations. The serrations on the outer arc surface of the traction brake wheel are movably adapted to the magnetic base. Through devices such as connecting parts and connecting screws, the serrations on the surface of the traction brake wheel will be damaged due to long-term work, and part of the traction brake wheel can be replaced through the connecting parts in the connecting cavity, thereby saving the use cost and avoiding the cost increase of directly replacing the traction brake wheel.

[0008] Optionally, a brake assembly is fixedly mounted on one side surface of the longitudinal plate inside the L-shaped bottom plate; the brake assembly includes a control shell fixedly mounted on one side of the L-shaped bottom plate, and a rectangular groove is formed on one side surface of the control shell.

[0009] Optionally, a positioning ring is fixedly installed on the top of the side surface of the brake arm away from the traction brake wheel, a cylinder is fixedly installed on the inner arc surface of the positioning ring, a first connecting bracket is movably connected to the lower surface of the cylinder, an upper arm pull rod is fixedly installed in the middle of the lower surface of the first connecting bracket, and a second connecting bracket is fixedly installed on one end of the upper arm pull rod.

[0010] Optionally, one side surface of the second connecting bracket is movably connected to a seesaw via a rotating shaft, one side surface of the seesaw is movably connected to a first auxiliary bracket via a rotating shaft, a lower arm pull rod is fixedly installed on the upper surface of the first auxiliary bracket, and a second auxiliary bracket is fixedly installed on one end of the lower arm pull rod.

[0011] Optionally, one side surface of the second auxiliary bracket is movably connected with a pin seat through a rotating shaft, and one side surface of the pin seat is fixedly installed with a connecting rod, and one end of the connecting rod is fixedly installed with a brake protrusion, and the lower surface of the brake protrusion is placed in the control shell and is movably connected and adapted to the serrations on the surface of the traction brake wheel. Through the cooperation between the brake assembly and the magnetic attraction, the first connecting bracket is forced to move downward, and the upper arm pull rod at the lower end is squeezed, so that the upper arm pull rod transmits the force to the second connecting bracket. The force received will be offset by the weight of the seesaw, and the first auxiliary bracket at the other end will transmit the force upward to the second auxiliary bracket. The force received by the second auxiliary bracket will be connected to the pin seat. At this time, the connected connecting rod will drive the brake protrusion in the control shell to move upward, and be clamped at the serrations on the surface of the traction brake wheel to avoid uneven electromagnetic attraction of the static iron caused by magnetic attraction, thereby causing eccentric wear of the friction plate, and in severe cases, insufficient braking force will be caused, causing safety hazards of the elevator, thereby improving safety efficiency.

[0012] Beneficial Effects The utility model provides an energy-saving elevator brake, which has the following beneficial effects:

[0013] Through the cooperation between the brake assembly and the magnetic attraction, the first connecting bracket is forced to move downward, and the upper arm pull rod at the lower end is squeezed, so that the upper arm pull rod transmits the force to the second connecting bracket. The force received will be offset by the weight of the rocker, and the first auxiliary bracket at the other end will transmit the force upward to the second auxiliary bracket. The force received by the second auxiliary bracket will be connected to the pin seat. At this time, the connected connecting rod will drive the brake bump in the control shell to move upward and be clamped on the serrations on the surface of the traction brake wheel to avoid uneven electromagnetic suction of the static iron caused by magnetic attraction, thereby causing eccentric wear of the friction plate, and in severe cases, insufficient braking force will be caused, causing safety hazards of the elevator, thereby improving safety efficiency.

[0014] Through the use of connecting parts and connecting screws, the serrations on the surface of the traction brake wheel will be damaged due to long-term work, and part of the traction brake wheel can be replaced through the connecting parts in the connecting cavity, saving the use cost and avoiding the cost increase of directly replacing the traction brake wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the back structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the brake assembly structure of the utility model;

[0020] Figure 5 It is a partial structural schematic diagram of the utility model.

[0021] In the figure: 1. L-shaped base plate; 2. brake arm; 3. brake rod; 4. magnetic base; 5. magnet; 6. traction brake wheel; 7. brake disc; 8. connecting cavity; 9. connecting piece; 10. connecting screw; 11. arc plate; 12. brake assembly; 121. control shell; 122. cylinder; 123. first connecting bracket; 124. upper arm pull rod; 125. second connecting bracket; 126. rocker; 127. first auxiliary bracket; 128. second auxiliary bracket; 129. pin seat; 1210. lower arm pull rod; 1211. connecting rod; 1212. brake bump. DETAILED DESCRIPTION

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] See also Figures 1 to 5 The utility model provides a technical solution: it includes an L-shaped bottom plate 1, the L-shaped bottom plate 1 is integrated with a longitudinal plate and a transverse plate, the surface of the transverse plate on one side of the L-shaped bottom plate 1 is movably connected with brake arms 2 on both sides, the top of one side surface of the two brake arms 2 is provided with a through groove, the inner side wall of the through groove is fixedly connected with a brake rod 3, one end of the brake rod 3 is movably connected with a magnetic base 4, the upper surface of the magnetic base 4 is fixedly installed with a magnet 5, one side surface of the brake arm 2 is fixedly installed with a traction brake wheel 6, both sides of the traction brake wheel 6 are provided with a through groove, and the inner bottom wall of the through groove on the surface of the traction brake wheel 6 is fixed A brake disc 7 is installed, and connecting cavities 8 are opened on both sides of the brake disc 7. A connecting piece 9 is fixedly installed on the side of the traction brake wheel 6 close to the brake disc 7. Connecting screws 10 are fixedly installed on both sides of the inner bottom wall of the connecting cavity 8. The outer arc surface of the connecting screw 10 is provided with a thread. The connecting screw 10 is connected to an arc plate 11 through a thread. The area formed by the connection of the arc plates 11 forms a connecting cavity 8. The traction brake wheel 6 is composed of two semicircles and is distributed symmetrically in a mirror image. The outer arc surface of the traction brake wheel 6 is provided with a plurality of serrations, and the serrations on the outer arc surface of the traction brake wheel 6 are movably adapted to the magnetic base 4.

[0024] Through the connecting piece 9 and the connecting screw 10 and other devices, the serrations on the surface of the traction brake wheel 6 will be damaged due to long-term work, and part of the traction brake wheel 6 can be replaced by the connecting piece 9 in the connecting cavity 8, saving the use cost and avoiding the cost increase of directly replacing the traction brake wheel 6.

[0025] A brake assembly 12 is fixedly mounted on one side surface of the inner longitudinal plate of the L-shaped bottom plate 1; the brake assembly 12 comprises a control housing 121 fixedly mounted on one side of the L-shaped bottom plate 1, a rectangular groove is provided on one side surface of the control housing 121, a positioning ring is fixedly mounted on the top of the side surface of the brake arm 2 away from the traction brake wheel 6, a cylinder 122 is fixedly mounted on the inner arc surface of the positioning ring, a first connecting bracket 123 is movably connected to the lower surface of the cylinder 122, an upper arm pull rod 124 is fixedly mounted on the middle part of the lower surface of the first connecting bracket 123, a second connecting bracket 125 is fixedly mounted on one end of the upper arm pull rod 124, and a side surface of the second connecting bracket 125 is connected by a rotating shaft A seesaw 126 is movably connected to one side surface of the seesaw 126, and a first auxiliary bracket 127 is movably connected to the first auxiliary bracket 127 via a rotating shaft. A lower arm pull rod 1210 is fixedly installed on the upper surface of the first auxiliary bracket 127, and a second auxiliary bracket 128 is fixedly installed on one end of the lower arm pull rod 1210. A pin seat 129 is movably connected to one side surface of the second auxiliary bracket 128 via a rotating shaft, and a connecting rod 1211 is fixedly installed on one side surface of the pin seat 129, and a brake lug 1212 is fixedly installed on one end of the connecting rod 1211, and the lower surface of the brake lug 1212 is placed in the control housing 121, and is movably connected and adapted to the serrations on the surface of the traction brake wheel 6.

[0026] Through the cooperation between the brake assembly 12 and the magnetic attraction, the first connecting bracket 123 is forced to move downward, and the upper arm pull rod 124 at the lower end is squeezed, so that the upper arm pull rod 124 transmits the force to the second connecting bracket 125. The force received will be offset by the weight of the rocker 126, and the first auxiliary bracket 127 at the other end will transmit the force upward to the second auxiliary bracket 128. The force received by the second auxiliary bracket 128 will be connected to the pin seat 129. At this time, the connected connecting rod 1211 will drive the brake protrusion 1212 in the control shell 121 to move upward and be clamped on the serrations on the surface of the traction brake wheel 6, so as to avoid uneven electromagnetic attraction of the static iron caused by magnetic attraction, thereby causing eccentric wear of the friction plate, and in severe cases, insufficient braking force, causing safety hazards of the elevator, thereby improving safety efficiency.

[0027] In the utility model, the working steps of the device are as follows:

[0028] When the elevator needs to be braked, the cylinder 122 in the brake assembly 12 at the rear end of the L-shaped bottom plate 1 starts to work under the influence of the signal and extends its own push rod downward, so that the first connecting bracket 123 is forced to move downward, and the upper arm pull rod 124 at the lower end is squeezed, so that the upper arm pull rod 124 transmits the force to the second connecting bracket 125, and the force received will be offset by the weight of the rocker 126, and the first auxiliary bracket 127 at the other end will transmit the force upward to the second auxiliary bracket 128, and the force received by the second auxiliary bracket 128 will be connected to the pin seat 129. At this time, the connected connecting rod 1211 will drive the brake protrusion 1212 in the control shell 121 to move upward and be clamped on the serrations on the surface of the traction brake wheel 6. At the same time, long-term work will damage the serrations on the surface of the traction brake wheel 6. Part of the traction brake wheel 6 can be replaced by the connecting piece 9 in the connecting cavity 8, saving the use cost. At the same time, the brake rod 3 is adsorbed on the magnetic base 4, so that the magnetizer 5 is adsorbed on the traction brake wheel 6 to generate magnetic force for braking.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving elevator brake, comprising an L-shaped bottom plate (1), characterized in that: The L-shaped bottom plate (1) is formed by integrating a longitudinal plate and a transverse plate. The surface of the transverse plate on one side of the L-shaped bottom plate (1) is movably connected to brake arms (2). The top of one side surface of the two brake arms (2) is provided with a through groove. The inner side wall of the through groove is fixedly connected to a brake rod (3). One end of the brake rod (3) is movably connected to a magnetic base (4). A magnet (5) is fixedly mounted on the upper surface of the magnetic base (4). A traction brake wheel (6) is fixedly mounted on one side surface of the brake arm (2). The traction brake wheel (6) is provided with a through groove on both sides. A through groove is provided, a brake disc (7) is fixedly mounted on the inner bottom wall of the through groove on the surface of the traction brake wheel (6), a connecting cavity (8) is opened on both sides of the brake disc (7), a connecting piece (9) is fixedly mounted on the side of the traction brake wheel (6) close to the brake disc (7), connecting screws (10) are fixedly mounted on both sides of the inner bottom wall of the connecting cavity (8), the outer arc surface of the connecting screw (10) is provided with a thread, the connecting screw (10) is connected to an arc plate (11) through the thread, and the area formed by the connection of the arc plates (11) forms a connecting cavity (8).

2. An energy-saving elevator brake according to claim 1, characterized in that: The traction brake wheel (6) is composed of two semicircles and is distributed in a mirror-symmetrical manner. The outer arc surface of the traction brake wheel (6) is provided with a plurality of saw teeth. The saw teeth on the outer arc surface of the traction brake wheel (6) are movably matched with the magnetic base (4).

3. An energy-saving elevator brake according to claim 1, characterized in that: A brake assembly (12) is fixedly mounted on one side surface of the inner longitudinal plate of the L-shaped bottom plate (1); the brake assembly (12) comprises a control housing (121) fixedly mounted on one side of the L-shaped bottom plate (1), and a rectangular groove is formed on one side surface of the control housing (121).

4. An energy-saving elevator brake according to claim 1, characterized in that: A positioning ring is fixedly mounted on the top of a side surface of the brake arm (2) away from the traction brake wheel (6); a cylinder (122) is fixedly mounted on the inner arc surface of the positioning ring; a first connecting bracket (123) is movably connected to the lower surface of the cylinder (122); an upper arm pull rod (124) is fixedly mounted in the middle of the lower surface of the first connecting bracket (123); and a second connecting bracket (125) is fixedly mounted on one end of the upper arm pull rod (124).

5. An energy-saving elevator brake according to claim 4, characterized in that: A seesaw (126) is movably connected to one side surface of the second connecting bracket (125) via a rotating shaft, and a first auxiliary bracket (127) is movably connected to one side surface of the seesaw (126) via a rotating shaft. A lower arm pull rod (1210) is fixedly mounted on the upper surface of the first auxiliary bracket (127), and a second auxiliary bracket (128) is fixedly mounted on one end of the lower arm pull rod (1210).

6. An energy-saving elevator brake according to claim 5, characterized in that: A pin seat (129) is movably connected to one side surface of the second auxiliary bracket (128) via a rotating shaft, a connecting rod (1211) is fixedly mounted on one side surface of the pin seat (129), a braking lug (1212) is fixedly mounted on one end of the connecting rod (1211), and a lower surface of the braking lug (1212) is placed in the control housing (121) and is movably connected and adapted to the saw teeth on the surface of the traction brake wheel (6).

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