CN113998557B - Elevator safety brake - Google Patents
Elevator safety brake Download PDFInfo
- Publication number
- CN113998557B CN113998557B CN202210003765.5A CN202210003765A CN113998557B CN 113998557 B CN113998557 B CN 113998557B CN 202210003765 A CN202210003765 A CN 202210003765A CN 113998557 B CN113998557 B CN 113998557B
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- shaft
- main shaft
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- rotates
- seat
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- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000005457 optimization Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
- F16D49/18—Brakes with three or more brake-blocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
- F16D59/02—Self-acting brakes, e.g. coming into operation at a predetermined speed spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/44—Mechanical mechanisms transmitting rotation
- F16D2125/46—Rotating members in mutual engagement
- F16D2125/48—Rotating members in mutual engagement with parallel stationary axes, e.g. spur gears
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention relates to an elevator device, in particular to an elevator safety brake, which comprises a base, a shaft mechanism, a primary braking mechanism and a secondary braking mechanism, wherein the device can adjust the speed of an elevator through a friction plate in the normal operation of the elevator so as to stop the elevator, the device can decelerate and stop the elevator through the secondary friction plate when the primary deceleration does not work, the shaft mechanism is in rotating fit with the base, the primary braking mechanism is fixed on the base, and the secondary braking mechanism is fixed with the base.
Description
Technical Field
The invention relates to an elevator device, in particular to an elevator safety brake.
Background
The safety requirement of elevator operation is high, which directly results in personal safety, however, the existing brake is decelerated by a once friction plate, and the speed of the elevator will increase after the friction plate is worn or accidentally damaged, so the elevator safety brake is designed to prevent the situation.
Disclosure of Invention
The invention mainly solves the technical problem of providing an elevator safety brake, which can adjust the speed of an elevator through a friction plate so as to stop in the normal operation of the elevator, and can decelerate and stop the elevator through a secondary friction plate when primary deceleration does not work.
In order to solve the technical problem, the invention relates to an elevator device, in particular to an elevator safety brake which comprises a base, a shaft mechanism, a primary braking mechanism and a secondary braking mechanism, wherein the elevator safety brake can adjust the speed of an elevator through a friction plate so as to stop in the normal operation of the elevator, and the elevator safety brake can decelerate and stop through the secondary friction plate when the primary deceleration does not work.
The shaft mechanism is in running fit with the base, the primary braking mechanism is fixed on the base, and the secondary braking mechanism is fixed with the base.
As a further optimization of the technical scheme, the base of the elevator safety brake comprises a main seat, three front sliding grooves, a shaft seat and eight rear sliding seats, wherein the main seat is square, a round hole is formed in the middle of the main seat, round grooves are formed in the middle of the main seat, the three front sliding grooves are formed, the front sliding grooves are formed in one side of the main seat, the shaft seat is formed in the lower portion of the main seat, the shaft seat is located on the same side of the front sliding grooves, rotating holes are formed in the shaft seat, and the rear sliding seats are located on the other side of the main seat.
As a further optimization of the technical scheme, the shaft mechanism of the elevator safety brake comprises a main shaft, a telescopic shaft, a secondary shaft, a first end cover, centrifugal plates, a second end cover, a spring and pressing plates, wherein a square groove is machined at one end of the main shaft, one end of the main shaft is cylindrical, the middle of the main shaft is protruded, six sliding grooves are formed in the main shaft, the telescopic shaft is in sliding fit with the main shaft, the telescopic shaft is connected with a steel wire shaft, the secondary shaft is hollow, the secondary shaft is in rotating fit with the main shaft, teeth are arranged on one side of the secondary shaft, six protrusions are arranged inside the other side of the secondary shaft, the first end cover is fixed on the main shaft, six centrifugal plates are arranged, the centrifugal plates are in sliding fit with the main shaft, the centrifugal plates are T-shaped, the second end cover is fixed at one end of the main shaft, twenty-four springs are arranged in each group, one end of the springs is connected with the pressing plates, twelve pressing plates are arranged, two are arranged in each group, and the pressing sheets are in contact with the main shaft.
As a further optimization of the technical scheme, the primary braking mechanism of the elevator safety brake comprises an end plate, three pressing wheels, a gear, three pushing plates and three friction plates, wherein the end plate is fixed on a main seat, teeth are arranged outside the pressing wheels, three inclined grooves are formed in the pressing wheels, the middle parts of the pressing wheels are in running fit with a main shaft, the gear is in running fit with a shaft seat, the gear is meshed with the pressing wheels, the gear is connected with a motor, the three pushing plates are in sliding fit with a front sliding groove, cylindrical protrusions are arranged on the pushing plates, the pushing plates are in sliding fit with the pressing wheels, the friction plates are fixed on the inner sides of the pushing plates, and the number of the friction plates is three.
As a further optimization of the technical scheme, the secondary braking mechanism of the elevator safety brake comprises a cover plate, a rear cover, secondary friction plates, secondary pressure rollers, middle teeth and connecting teeth, wherein the cover plate is fixed on a rear sliding seat, a circular hole is formed in the middle of the cover plate, the rear cover is fixed on the cover plate, the middle of the rear cover is in rotating fit with a main shaft, eight secondary friction plates are arranged, the secondary friction plates are in sliding fit with the rear sliding seat, cylindrical protrusions are arranged on the secondary friction plates, the secondary friction plates are in sliding fit with the cover plate, teeth are arranged on the outer portion of each secondary pressure roller, eight inclined grooves are formed in each secondary pressure roller, the secondary pressure rollers are in sliding quota with the secondary friction plates, the secondary pressure rollers are in rotating fit with the rear cover, the middle teeth are meshed with a secondary shaft, the middle teeth are meshed with the connecting teeth, and the connecting teeth are meshed with the secondary pressure rollers.
As a further optimization of the technical scheme, the main shaft of the elevator safety brake is made of cast iron materials.
As further optimization of the technical scheme, the secondary shaft of the elevator safety brake is made of cast iron.
As a further optimization of the technical scheme, the maximum rotation radius of the centrifugal sheet of the elevator safety brake is smaller than the inner diameter of the secondary shaft.
The elevator safety brake has the beneficial effects that:
the invention relates to an elevator safety brake, which can adjust the speed of an elevator through a friction plate so as to stop in the normal operation of the elevator, and can decelerate and stop through a secondary friction plate when primary deceleration does not work.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of an elevator safety brake according to the present invention.
Fig. 2 is a schematic view of the other side of the safety brake of an elevator according to the present invention.
Fig. 3 is a schematic structural view of a base of an elevator safety brake according to the present invention.
Fig. 4 is another side view of the base of the safety brake of the elevator according to the present invention.
Fig. 5 is a schematic view showing the construction of a shaft mechanism of an elevator safety brake according to the present invention.
Fig. 6 is another side view of the shaft mechanism of the elevator safety brake according to the present invention.
Fig. 7 is a partial structural schematic view of a shaft mechanism of an elevator safety brake.
Fig. 8 is a schematic view of a part of the shaft mechanism of the elevator safety brake of the invention.
Fig. 9 is a schematic view showing an internal structure of a shaft mechanism of an elevator safety brake according to the present invention.
Fig. 10 is a schematic structural view of a primary braking mechanism of an elevator safety brake according to the present invention.
Fig. 11 is another side view of the primary braking mechanism of the elevator safety brake according to the present invention.
Fig. 12 is a partial structural view of a primary braking mechanism of an elevator safety brake according to the present invention.
Fig. 13 is a schematic structural view of a secondary braking mechanism of an elevator safety brake of the present invention.
Fig. 14 is another side view of the secondary braking mechanism of the elevator safety brake of the present invention.
Fig. 15 is a partial structural view of a secondary braking mechanism of an elevator safety brake of the present invention.
In the figure: a base 1; a main base 101; a front chute 102; a shaft seat 103; a rear slide 104; a shaft mechanism 2; a main shaft 201; a telescopic shaft 202; a secondary axis 203; a first end cover 204; centrifugal blades 205; a second end cap 206; a spring 207; pressing the sheet 208; a primary braking mechanism 3; an end plate 301; a pinch roller 302; a gear 303; a push plate 304; a friction plate 305; a secondary braking mechanism 4; a cover plate 401; a rear cover 402; a secondary friction plate 403; a secondary puck 404; a middle tooth 405; coupling teeth 406.
Detailed Description
The first embodiment is as follows:
the embodiment is described below with reference to fig. 1-15, and the invention relates to an elevator safety brake device, and more specifically relates to an elevator safety brake device, which comprises a base 1, a shaft mechanism 2, a primary brake mechanism 3 and a secondary brake mechanism 4, wherein the device can adjust the speed of an elevator through friction plates so as to stop in the normal operation of the elevator, and the device can decelerate and stop the elevator through the secondary friction plates when the primary deceleration does not work.
The shaft mechanism 2 is matched with the base 1 in a rotating mode, the primary braking mechanism 3 is fixed on the base 1, and the secondary braking mechanism 4 is fixed with the base 1.
The second embodiment is as follows:
the following describes the present embodiment with reference to fig. 1 to 15, and the present embodiment further describes the first embodiment, the base 1 includes a main seat 101, a front sliding slot 102, a shaft seat 103, and a rear sliding seat 104, the main seat 101 is square, a circular hole is disposed in the middle of the main seat 101, a circular slot is disposed in the middle of the main seat 101, three front sliding slots 102 are disposed, the front sliding slot 102 is located on one side of the main seat 101, the shaft seat 103 is located on the lower portion of the main seat 101, the shaft seat 103 is located on the same side of the front sliding slot 102, a rotating hole is disposed on the shaft seat 103, eight rear sliding seats 104 are disposed, and the rear sliding seat 104 is located on the other side of the main seat 101.
The third concrete implementation mode:
the following describes the present embodiment with reference to fig. 1 to 15, and the present embodiment further describes the first embodiment, the shaft mechanism 2 includes a main shaft 201, a telescopic shaft 202, a secondary shaft 203, a first end cover 204, a centrifugal plate 205, a second end cover 206, a spring 207, and a pressing plate 208, one end of the main shaft 201 is processed with a square groove, one end of the main shaft 201 is cylindrical, a middle portion of the main shaft 201 is protruded, six sliding grooves are provided on the main shaft 201, the telescopic shaft 202 is slidably engaged with the main shaft 201, the telescopic shaft 202 is connected with a steel wire shaft, the secondary shaft 203 is hollow, the secondary shaft 203 is rotatably engaged with the main shaft 201, one side of the secondary shaft 203 is provided with teeth, six protrusions are provided inside the other side of the secondary shaft 203, the first end cover 204 is fixed on the main shaft 201, six centrifugal plates 205 are slidably engaged with the main shaft 201, the centrifugal plate 205 is T-shaped, the second end cover 206 is fixed at one end of the main shaft 201, twenty-four springs 207 are provided, four in each group, one end of the spring 207 is connected with the centrifugal plate 205, one end of the spring 207 is connected with the pressing plate 208, twelve pressing plates 208 are arranged, two in each group, and the pressing plate 208 is in contact with the main shaft 201.
The fourth concrete implementation mode:
the first-stage brake mechanism 3 includes an end plate 301, a pressing wheel 302, a gear 303, three pushing plates 304, and friction plates 305, where the end plate 301 is fixed on the main base 101, the pressing wheel 302 is provided with teeth on its outer portion, the pressing wheel 302 is provided with three inclined grooves, the middle of the pressing wheel 302 is rotatably fitted with the main shaft 201, the gear 303 is rotatably fitted with the shaft base 103, the gear 303 is engaged with the pressing wheel 302, the gear 303 is connected with the motor, the pushing plates 304 are provided with three pushing plates 304, the pushing plates 304 are slidably fitted with the front sliding grooves 102, the pushing plates 304 are provided with cylindrical protrusions, the pushing plates 304 are slidably fitted with the pressing wheel 302, the friction plates 305 are fixed on the inner side of the pushing plates 304, and there are three friction plates 305.
The fifth concrete implementation mode:
the second-stage brake mechanism 4 includes a cover plate 401, a back cover 402, second-stage friction plates 403, a second-stage pressure roller 404, middle teeth 405, and connecting teeth 406, the cover plate 401 is fixed on the back slide 104, the middle of the cover plate 401 is provided with a circular hole, the back cover 402 is fixed on the cover plate 401, the middle of the back cover 402 is rotatably matched with the main shaft 201, eight second-stage friction plates 403 are provided, the second-stage friction plates 403 are slidably matched with the back slide 104, the second-stage friction plates 403 are provided with cylindrical protrusions, the second-stage friction plates 403 are slidably matched with the cover plate 401, teeth are provided outside the second-stage pressure roller 404, eight inclined grooves are provided on the second-stage pressure roller 404, the second-stage pressure roller 404 and the second-stage friction plates 403 are slidably quota, the second-stage pressure roller 404 and the back cover 402 are rotatably matched, the middle teeth 405 are engaged with the second-stage shaft 203, the middle teeth 405 are engaged with the connecting teeth 406, the coupling teeth 406 engage the secondary puck 404.
The working principle of the device is as follows: the main shaft 201 passes through a through hole in the middle of the main base 101, and the push plate 304 is placed in the front sliding groove 102. Connect telescopic shaft 202 on the steel wire axle, steel wire axle rotates and drives telescopic shaft 202 and rotate, telescopic shaft 202 rotates and drives main shaft 201 and rotate, main shaft 201 rotates and drives centrifugal piece 205 outwards to remove, and compression spring 207, at the rotational speed of main shaft 201 steady, and in the within range of injecing, centrifugal piece 205 will rotate at the inside of second grade axle 203, second grade axle 203 can not take place to rotate, after main shaft 201 rotates too fast, centrifugal piece 205 continues compression spring, and with the inside contact of second grade axle 203, and drive second grade axle 203 and rotate. In the active friction stage, the motor drives the gear 303 to rotate, the gear 303 rotates to drive the pressing wheel 302 to rotate, the pressing wheel 302 rotates to drive the pushing plate 304 to move, and the pushing plate 304 moves to drive the friction plate 305 to contact and rub with the main shaft 201, so as to decelerate. After the secondary shaft 203 rotates, the middle gear 405 is driven to rotate, the middle gear 405 rotates to drive the connecting gear 406 to rotate, the connecting gear 406 rotates to drive the secondary pressure wheel 404 to rotate, the secondary pressure wheel 404 rotates the secondary friction plate 403 to move, the secondary friction plate 403 and the secondary shaft 203 rub against each other to decelerate, and the operation safety of the elevator is guaranteed.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (4)
1. The utility model provides an elevator safety brake, includes base (1), axle mechanism (2), one-level arrestment mechanism (3), second grade arrestment mechanism (4), its characterized in that: the shaft mechanism (2) is in running fit with the base (1), the primary braking mechanism (3) is fixed on the base (1), and the secondary braking mechanism (4) is fixed with the base (1);
the base (1) comprises a main seat (101), a front sliding groove (102), shaft seats (103) and rear sliding seats (104), wherein the main seat (101) is square, a round hole is formed in the middle of the main seat (101), round grooves are formed in the middle of the main seat (101), the number of the front sliding grooves (102) is three, the front sliding grooves (102) are formed in one side of the main seat (101), the shaft seats (103) are located on the lower portion of the main seat (101), the shaft seats (103) are located on the same side of the front sliding grooves (102), rotating holes are formed in the shaft seats (103), the number of the rear sliding seats (104) is eight, and the rear sliding seats (104) are located on the other side of the main seat (101);
the shaft mechanism (2) comprises a main shaft (201), a telescopic shaft (202), a secondary shaft (203), a first end cover (204), a centrifugal sheet (205), a second end cover (206), a spring (207) and a pressing sheet (208), wherein a square groove is processed at one end of the main shaft (201), one end of the main shaft (201) is cylindrical, the middle of the main shaft (201) is protruded, six sliding grooves are formed in the main shaft (201), the telescopic shaft (202) is in sliding fit with the main shaft (201), the telescopic shaft (202) is connected with a steel wire shaft, the secondary shaft (203) is hollow, the secondary shaft (203) is in rotating fit with the main shaft (201), teeth are arranged on one side of the secondary shaft (203), six protrusions are arranged inside the other side of the secondary shaft (203), the first end cover (204) is fixed on the main shaft (201), six centrifugal sheets (205) are arranged, the centrifugal sheet (205) is in sliding fit with the main shaft (201), and the centrifugal sheet (205) is T-shaped, the end cover II (206) is fixed at one end of the main shaft (201), twenty-four springs (207) are arranged, four springs are arranged in each group, one end of each spring (207) is connected with the centrifugal sheet (205), one end of each spring (207) is connected with the pressing sheet (208), twelve pressing sheets (208) are arranged, two pressing sheets (208) are arranged in each group, and the pressing sheets (208) are in contact with the main shaft (201); the main shaft (201) penetrates through a through hole in the middle of the main seat (101), and the push sheet (304) is placed in the front sliding groove (102); connecting a telescopic shaft (202) to a steel wire shaft, wherein the steel wire shaft rotates to drive the telescopic shaft (202) to rotate, the telescopic shaft (202) rotates to drive a main shaft (201) to rotate, the main shaft (201) rotates to drive a centrifugal sheet (205) to move outwards, and the spring (207) is compressed, the rotating speed of the main shaft (201) is stable, and in a limited range, the centrifugal sheet (205) rotates inside a secondary shaft (203), the secondary shaft (203) cannot rotate, and when the main shaft (201) rotates too fast, the centrifugal sheet (205) continues to compress the spring, contacts with the inside of the secondary shaft (203), and drives the secondary shaft (203) to rotate;
the primary braking mechanism (3) comprises an end plate (301), a pressing wheel (302), gears (303), three pushing plates (304) and three friction plates (305), wherein the end plate (301) is fixed on a main seat (101), teeth are arranged outside the pressing wheel (302), three inclined grooves are formed in the pressing wheel (302), the middle of the pressing wheel (302) is in running fit with a main shaft (201), the gears (303) are in running fit with a shaft seat (103), the gears (303) are meshed with the pressing wheel (302), the gears (303) are connected with a motor, the three pushing plates (304) are arranged, the three pushing plates (304) are in sliding fit with a front sliding groove (102), cylindrical protrusions are arranged on the pushing plates (304), the pushing plates (304) are in sliding fit with the pressing wheel (302), the friction plates (305) are fixed on the inner side of the pushing plates (304), and the three friction plates (305) are arranged; in the active friction stage, a motor drives a gear (303) to rotate, the gear (303) rotates to drive a pressure wheel (302) to rotate, the pressure wheel (302) rotates to drive a push plate (304) to move, and the push plate (304) moves to drive a friction plate (305) to be in contact friction with a main shaft (201) and reduce the speed;
the secondary brake mechanism (4) comprises a cover plate (401), a rear cover (402), secondary friction plates (403), a secondary pressure wheel (404), middle teeth (405) and connecting teeth (406), the cover plate (401) is fixed on the rear sliding seat (104), a round hole is formed in the middle of the cover plate (401), the rear cover (402) is fixed on the cover plate (401), the middle of the rear cover (402) is in rotating fit with the main shaft (201), eight secondary friction plates (403) are arranged, the secondary friction plates (403) are in sliding fit with the rear sliding seat (104), cylindrical protrusions are arranged on the secondary friction plates (403), the secondary friction plates (403) are in sliding fit with the cover plate (401), teeth are arranged outside the secondary pressure wheel (404), eight inclined grooves are formed in the secondary pressure wheel (404), the secondary pressure wheel (404) is in sliding fit with the secondary friction plates (403), the secondary pressure wheel (404) is in rotating fit with the rear cover (402), the middle teeth (405) are meshed with the secondary shaft (203), the middle tooth (405) is meshed with the connecting tooth (406), and the connecting tooth (406) is meshed with the secondary pressure wheel (404); after the secondary shaft (203) rotates, the middle gear (405) is driven to rotate, the middle gear (405) rotates to drive the connecting gear (406) to rotate, the connecting gear (406) rotates to drive the secondary pressure wheel (404) to rotate, the secondary pressure wheel (404) rotates to drive the secondary friction plate (403) to move, the secondary friction plate (403) and the secondary shaft (203) rub against each other to decelerate, and the operation safety of the elevator is guaranteed.
2. An elevator safety brake as defined in claim 1, characterized in that: the main shaft (201) is made of cast iron material.
3. An elevator safety brake as defined in claim 1, characterized in that: the secondary shaft (203) is made of cast iron.
4. An elevator safety brake as defined in claim 1, characterized in that: the maximum rotation radius of the centrifugal sheet (205) is smaller than the inner diameter of the secondary shaft (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210003765.5A CN113998557B (en) | 2022-01-05 | 2022-01-05 | Elevator safety brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210003765.5A CN113998557B (en) | 2022-01-05 | 2022-01-05 | Elevator safety brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113998557A CN113998557A (en) | 2022-02-01 |
| CN113998557B true CN113998557B (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210003765.5A Active CN113998557B (en) | 2022-01-05 | 2022-01-05 | Elevator safety brake |
Country Status (1)
| Country | Link |
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| CN (1) | CN113998557B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165538B (en) * | 2022-02-14 | 2022-05-17 | 河南工学院 | Safety device for preventing steel cable from breaking and falling and application of safety device in winch for livestock breeding |
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| WO2020188709A1 (en) * | 2019-03-18 | 2020-09-24 | 三菱電機株式会社 | Elevator brake release apparatus |
| CN215207914U (en) * | 2021-04-09 | 2021-12-17 | 苏州易米克电子有限公司 | Remote brake releasing device for elevator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101506084B (en) * | 2006-08-15 | 2012-04-18 | 奥蒂斯电梯公司 | Elevator machine brake with integrated bearing and brake surface |
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2022
- 2022-01-05 CN CN202210003765.5A patent/CN113998557B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002181090A (en) * | 2000-12-11 | 2002-06-26 | Hitachi Ltd | Disc brake |
| WO2007029310A1 (en) * | 2005-09-06 | 2007-03-15 | Mitsubishi Denki Kabushiki Kaisha | Brake device for elevator |
| WO2012158172A1 (en) * | 2011-05-19 | 2012-11-22 | Otis Elevator Company | Brake for electric motor |
| CN202594560U (en) * | 2012-05-19 | 2012-12-12 | 南京工业大学 | Safety falling protector for industrial elevator |
| CN207330027U (en) * | 2017-08-29 | 2018-05-08 | 浙江屹立电梯有限公司 | A kind of elevator Double-speed limit device |
| WO2020188709A1 (en) * | 2019-03-18 | 2020-09-24 | 三菱電機株式会社 | Elevator brake release apparatus |
| CN215207914U (en) * | 2021-04-09 | 2021-12-17 | 苏州易米克电子有限公司 | Remote brake releasing device for elevator |
Also Published As
| Publication number | Publication date |
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| CN113998557A (en) | 2022-02-01 |
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Denomination of invention: An elevator safety brake Effective date of registration: 20231113 Granted publication date: 20220304 Pledgee: Agricultural Bank of China Limited Yantai Free Trade Zone Branch Pledgor: Xinli Elevator Technology Co.,Ltd. Registration number: Y2023980065222 |