CN112815022A - Overspeed brake of monorail conveyor - Google Patents

Overspeed brake of monorail conveyor Download PDF

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Publication number
CN112815022A
CN112815022A CN202110291895.9A CN202110291895A CN112815022A CN 112815022 A CN112815022 A CN 112815022A CN 202110291895 A CN202110291895 A CN 202110291895A CN 112815022 A CN112815022 A CN 112815022A
Authority
CN
China
Prior art keywords
brake
centrifugal
monorail conveyor
centrifugal brake
monorail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110291895.9A
Other languages
Chinese (zh)
Inventor
易文裕
王攀
程方平
王春霞
杨昌敏
余满江
熊昌国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Agricultural Machinery Research and Design Institute
Original Assignee
Sichuan Agricultural Machinery Research and Design Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Agricultural Machinery Research and Design Institute filed Critical Sichuan Agricultural Machinery Research and Design Institute
Priority to CN202110291895.9A priority Critical patent/CN112815022A/en
Publication of CN112815022A publication Critical patent/CN112815022A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D49/00Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
    • F16D49/18Brakes with three or more brake-blocks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/02Braking members; Mounting thereof
    • F16D65/04Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/08Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04Attachment of linings
    • F16D69/0416Attachment of linings specially adapted for curved linings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00Components of actuators
    • F16D2125/18Mechanical mechanisms
    • F16D2125/58Mechanical mechanisms transmitting linear movement
    • F16D2125/582Flexible element, e.g. spring, other than the main force generating element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2127/00Auxiliary mechanisms
    • F16D2127/001Auxiliary mechanisms for automatic or self-acting brake operation
    • F16D2127/002Auxiliary mechanisms for automatic or self-acting brake operation speed-responsive

Abstract

The invention belongs to the technical field of agricultural transportation machinery, and particularly relates to an overspeed brake of a monorail conveyor, which comprises a brake drum, a rotating disc arranged in the brake drum, a plurality of centrifugal brake blocks arranged between the brake drum and the rotating disc, and a return spring arranged on the centrifugal brake blocks, wherein the rotating disc is connected with a wheel axle of the monorail conveyor or a transmission shaft in a transmission device of the monorail conveyor, a movement gap for the centrifugal brake blocks to do centrifugal movement is also arranged between the brake drum and the rotating disc, and the return spring is used for providing elastic force to restrain the centrifugal movement of the centrifugal brake blocks. The application of the overspeed brake for the monorail conveyor enables the monorail conveyor to be in an unmanned state, so that the condition that the monorail conveyor runs down a long slope and exceeds the upper limit of safe speed can be prevented, and the safe running of the monorail conveyor is ensured.

Description

Overspeed brake of monorail conveyor
Technical Field
The invention belongs to the technical field of agricultural transportation machinery, and particularly relates to an overspeed brake structure of a monorail conveyor.
Background
The fruit planting of China is basically distributed in hilly areas, the landform and the landscape of orchards in the hilly areas are characterized by steep slopes, and perfect transportation roads cannot be formed on the uneven hills.
At present, with the further improvement of the mechanization level of orchards in China, the monorail transporter is used in orchards in hilly areas in a demonstration mode, and the monorail transporter is popularized due to the characteristics of simple structure, good economy, flexible track laying, minimal damage to the orchards, good ductility, no influence of terrain factors and the like.
Because the monorail conveyor is not occupied when working, the advancing speed of the monorail conveyor becomes faster and faster when goods are loaded and the slope is long, and the safety risk exists when the speed exceeds the upper limit of the safe running speed.
Disclosure of Invention
The invention aims to overcome the defects and provide the overspeed braking device for the monorail conveyor, which can brake the monorail conveyor when the advancing speed of the monorail conveyor reaches the upper limit.
The technical scheme of the invention is realized as follows:
an overspeed brake of a monorail conveyor, which comprises a brake drum, a rotating disc arranged in the brake drum, a plurality of centrifugal brake blocks arranged between the brake drum and the rotating disc, and a return spring arranged on the centrifugal brake blocks,
the brake drum is connected with the rotating disc through a transmission shaft in a wheel shaft or a transmission device of the monorail conveyor, a movement gap for centrifugal movement of the centrifugal brake block is further formed between the brake drum and the rotating disc, and the return spring is used for providing elastic force to restrain the centrifugal movement of the centrifugal brake block.
Preferably, the elastic coefficient of the return spring is matched with the upper limit value of the speed of the monorail conveyor, so that when the running speed of the monorail conveyor reaches the upper limit value, the centrifugal force applied to the centrifugal brake block can overcome the elastic force applied by the return spring, and sliding friction is formed between the centrifugal brake block and the brake drum. The spring with a proper elastic coefficient is selected to provide proper elastic tension, so that the upper limit of the speed of the monorail conveyor is controlled.
Preferably, the centrifugal brake shoe is provided with a friction plate, and when the running speed of the monorail conveyor reaches an upper limit value, sliding friction is formed between the friction plate on the centrifugal brake shoe and the brake drum.
Preferably, the centrifugal brake pads are uniformly distributed along the circumferential direction.
Preferably, the centrifugal brake pad is in a sector ring shape, and the friction plate is arranged on an outer cylindrical surface of the centrifugal brake pad.
Preferably, a plurality of mutually independent sliding grooves for placing the centrifugal brake pads are formed in the rotating disc along the circumferential direction, and each sliding groove is used for placing one centrifugal brake pad. The sliding groove can support and guide the centrifugal brake block when the rotating disc rotates.
Preferably, the return spring is connected in series with each centrifugal brake pad in sequence.
Preferably, the return spring has a ring-shaped structure and is connected to each of the centrifugal brake pads.
Preferably, the centrifugal brake pad is provided with an arc-shaped groove for placing the return spring.
Preferably, the number of the centrifugal brake blocks is three, the three centrifugal brake blocks are uniformly distributed along the circumferential direction, the number of the sliding grooves is three, and the three sliding grooves are distributed along the circumferential direction.
Compared with the prior art, the invention has the following beneficial technical effects:
1. when the rail transport machine is loaded with goods and runs on a downhill, and the speed is faster and faster to reach a certain speed, the centrifugal brake block in the rotating disc overcomes the tension of the spring to do centrifugal motion under the action of centrifugal force, when the centrifugal brake block moves to be in contact with the inner ring of the brake drum, the centrifugal brake block and the inner ring of the brake drum are in friction slipping to form resistance to the rotation of the rotating disc, so that the rotating speed of the rotating disc is forced to be reduced, and the running speed of the rail transport machine is reduced; when the running speed of the rail conveyor is reduced, the centrifugal force borne by the centrifugal brake block in the rotating disc is gradually reduced, and when the centrifugal force is reduced to a certain value, the friction plate is separated from the inner ring of the brake drum under the action of the tension of the return spring, so that the speed of the single-rail conveyor is limited. If the track conveyor continues to run downhill and the running speed is too high, the centrifugal brake block repeats the braking process again to force the monorail conveyor to run in the upper limit of the safe speed, so that even if the monorail conveyor is in an unmanned state, the overspeed brake can prevent the monorail conveyor from running down a long slope beyond the upper limit of the safe speed, and ensure the safe running of the monorail conveyor;
2. through the arrangement of the friction plate, friction between the centrifugal brake block and the brake drum is performed through the friction plate, and the friction plate not only has a larger friction coefficient, but also has good wear resistance, so that on one hand, larger friction force can be provided, and on the other hand, the service life can be longer;
3. the centrifugal brake blocks are uniformly distributed along the circumferential direction, and more consistent friction force is formed on the circumference in such a way, so that the braking stability is improved;
4. the outer surface of the fan-shaped centrifugal brake block is an arc surface, the surface area of the arc surface is large, and the friction plate can also be in a larger area, so that the contact area is large when the fan-shaped centrifugal brake block is in contact with the inner ring of the brake drum, the distribution of the braking force of the brake drum acting on the friction plate is more uniform, and the braking effect is good;
5. in the scheme of the application, for the centrifugal brake block, when the return spring is not arranged, when the friction plate performs friction slipping on the inner ring of the brake drum, the brake drum can apply reaction force to the friction plate and the centrifugal brake block along the tangential direction of the centrifugal brake block, and the centrifugal brake block is only supported by the side wall of the chute in the tangential direction, and the supporting points during supporting are only distributed at one end of the centrifugal brake block, so that the supporting effect is poor; after the reset spring is arranged in the circumferential direction, the reset spring enables the centrifugal brake blocks to be connected in series, so that when the centrifugal brake blocks are in friction slipping, the centrifugal brake blocks can be mutually supported, and the support is elastic support, so that the hard collision condition cannot occur in the support, and the support effect is good;
6. further, in this scheme, after reset spring connects gradually centrifugal brake block, the spring both ends end to end connects the brake block in series together. Through the arrangement, the spring forms a circular ring whole, and the fan-shaped centrifugal brake block and the circular ring spring form a whole. When the centrifugal brake pad is in work, on one hand, the annular spring can apply uniform centripetal contraction force to the centrifugal brake pads, and the centrifugal brake pads can simultaneously do centripetal contraction movement under the action of the uniform centripetal contraction force, so that the movement synchronism and integrity are good; on the other hand, when the friction plate on the centrifugal brake block receives the reaction force from the tangential direction of the inner ring of the brake drum, the whole formed by connecting the spring and the centrifugal brake block in series can bear the reaction force together, so the braking effect is good; and can avoid the appearance of centrifugal brake blocks in a certain direction or a certain direction;
7. in the scheme of this application, the centrifugal brake piece is three, the advantage of its setting lies in, when setting up two fan ring shape centrifugal brake pieces, the area of the outer disc of these two fan ring shape centrifugal brake pieces is too big, be unfavorable for fully laminating with the inner circle of brake drum, and when setting up four or more than four, can make the holistic structure of overspeed brake complicated, consequently the effect is not good, and when setting up three fan ring shape centrifugal brake pieces, can enough make the outer circle friction disc of centrifugal brake piece and the inner circle of brake drum can fully laminate, can not make the holistic structure of overspeed brake too complicated simultaneously again, consequently effectual.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of one embodiment of the overspeed brake of a monorail conveyor of the present application;
fig. 2 is a left side view of fig. 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
With reference to figures 1 and 2 of the drawings,
an overspeed brake suitable for a monorail conveyor comprises a brake drum 1, a rotating disc 6 arranged in the brake drum 1, a plurality of centrifugal brake blocks 3 arranged between the brake drum 1 and the rotating disc 6, and a return spring 2 arranged on the centrifugal brake blocks 3.
The brake drum 1 is fixedly connected with a shell of a transmission device, a shaft hole 8 is formed in the rotating disc 6, the shaft hole 8 is connected with a high-speed transmission shaft 4 in the transmission device through a key 5, the brake drum 1 and the rotating disc 6 are coaxially arranged, a friction plate 3-1 used for enabling the centrifugal brake block 3 to be in contact with an inner ring of the brake drum 1 through friction and slipping to enable the rotating disc 6 to decelerate is arranged on an outer cylindrical surface of the centrifugal brake block 3, a movement gap 7 used for enabling the centrifugal brake block 3 to do centrifugal movement is further arranged between the brake drum 1 and the rotating disc 6, the reset spring 2 is used for providing elastic force to restrain the centrifugal movement of the centrifugal brake block 3, and when the centrifugal brake block 3 does centrifugal movement in the movement gap 7, the elastic force of the reset spring 2 enables the centrifugal brake block 3 to do.
Furthermore, the elastic coefficient of the return spring 2 is matched with the upper limit value of the speed of the monorail conveyor, so that when the running speed of the monorail conveyor reaches the upper limit value, the centrifugal force applied to the centrifugal brake block 3 can overcome the elastic force applied by the return spring 2, and the centrifugal brake block 3 and the brake drum 1 form sliding friction.
Referring to fig. 1 and 2, a plurality of independent slide grooves 6-1 for placing the centrifugal brake pads 3 are formed on the rotary disc 6 along the circumferential direction, and each slide groove 6-1 is used for placing one centrifugal brake pad 3. The chute 6-1 can support and guide the centrifugal brake block 3 when the rotating disc 6 rotates.
Referring to fig. 1 and 2, the centrifugal brake shoe 3 is in a sector ring shape, the sector ring centrifugal brake shoes 3 are uniformly distributed along a circumferential direction, and the friction plate 3-1 is arranged on an outer cylindrical surface of the sector ring centrifugal brake shoe 3. The arrangement has the advantages that the outer surface of the fan-shaped centrifugal brake block 3 is an arc surface, the surface area of the arc surface is large, the contact area is large when the outer surface is in contact with the inner ring of the brake drum 1, the distribution of the braking force of the brake drum 1 acting on the friction plate 3-1 is more uniform, and the braking effect is good.
Referring to fig. 1 and 2, the sector ring shaped centrifugal brake block 3 is provided with circular arc grooves 3-2 in the circumferential direction for arranging the springs 2, and the springs 2 are respectively arranged in two adjacent circular arc grooves 3-2. The arrangement has the advantages that before the spring 2 is not arranged, when the friction plate 3-1 rubs and slips the inner ring of the brake drum 1, the brake drum 1 can apply the reaction force along the tangential direction of the centrifugal brake block 3 to the friction plate 3-1 and the centrifugal brake block 3, and the centrifugal brake block 3 is only supported by the chute wall 6-2 in the tangential direction, and the supporting point during supporting is only distributed at one end of the centrifugal brake block 3, so the supporting effect is poor; after the springs 2 are arranged in the circumferential direction, the centrifugal brake blocks 3 are connected in series through the springs 2, so that the centrifugal brake blocks 3 can be mutually restrained when in friction slip, the restraint is elastic, and hard collision cannot occur in the restraint, so that the restraint effect is good.
Referring to fig. 1 and 2, the arc grooves 3-2 at the two ends of the sector-shaped centrifugal brake blocks 3 are communicated with each other, and after the spring 2 sequentially passes through the arc groove 3-2 of each sector-shaped centrifugal brake block 3, the two ends 2-1 of the spring are connected end to connect the sector-shaped centrifugal brake blocks 3 in series. After the arrangement, the spring 2 forms a circular ring whole, and the fan-shaped centrifugal brake block 3 and the circular ring spring 2 form a whole. When the centrifugal brake pad is in work, on one hand, the annular spring 2 can apply uniform centripetal contraction force to the centrifugal brake pads 3, and the centrifugal brake pads 3 can simultaneously do centripetal contraction movement under the action of the uniform centripetal contraction force, so that the movement synchronism and integrity are good; on the other hand, when the friction plate 3-1 of the centrifugal brake pad 3 receives a reaction force in the tangential direction from the inner ring of the brake drum 1, the whole formed by the spring 2 and the centrifugal brake pad 3 in series can receive the reaction force together, so that the braking effect is good.
Referring to fig. 1 and 2, the number of the centrifugal brake shoes 3 is three, three centrifugal brake shoes 3 are uniformly distributed along the circumferential direction, the number of the slide grooves 6-1 is three, and three slide grooves 6-1 are distributed along the circumferential direction. The advantage of its setting lies in, when setting up two fan ring shape centrifugal brake pads 3, the area of these two outer disc of fan ring shape centrifugal brake pads 3 is too big, be unfavorable for fully laminating with the inner circle of brake drum 1, and when setting up four or more than four, can make the holistic structure of overspeed brake complicated, therefore the effect is not good, and when setting up three fan ring shape centrifugal brake pads 3, can enough make the excircle friction disc 3-1 of centrifugal brake pads 3 and the inner circle of brake drum 1 can fully laminate, can not make the holistic structure of overspeed brake too complicated simultaneously again, consequently effectual.
The working principle of the invention is as follows:
referring to fig. 1 and 2, when the rail transport machine is loaded with goods to run on a downhill and the speed reaches the upper limit of the safe running speed more and more quickly, the centrifugal brake block 3 in the rotating disc 6 moves centrifugally against the tension of the spring 2, and when the friction plate 3-1 on the centrifugal brake block moves to be in contact with the inner ring of the brake drum 1, the friction plate 3-1 and the inner ring of the brake drum 1 slide in a friction manner, so that the rotating speed of the centrifugal brake block 3 and the rotating disc 6 is reduced, and the running speed of the rail transport machine is reduced; the centrifugal force applied to the centrifugal brake block 3 in the rotating disc 6 is reduced, and when the centrifugal force is reduced to a certain value, the friction plate 3-1 can be separated from the inner ring of the brake drum 1 under the action of the tension of the spring 2. If the rail transport machine continues to go downhill and the running speed reaches the upper limit of the safe speed, the overspeed brake repeats the braking process again to force the monorail transport machine to run within the upper limit of the safe speed. Therefore, even if the monorail conveyor is in an unmanned state, the overspeed brake can prevent the monorail conveyor from descending a long slope and exceeding the upper limit of the safe speed, and the safe operation of the monorail conveyor is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The overspeed brake for the monorail transport vehicle is characterized by comprising a brake drum, a rotating disc arranged in the brake drum, a plurality of centrifugal brake blocks arranged between the brake drum and the rotating disc, and a return spring arranged on the centrifugal brake blocks, wherein the rotating disc is connected with a wheel axle of the monorail transport vehicle or a transmission shaft in a transmission device of the monorail transport vehicle, a movement gap for the centrifugal brake blocks to do centrifugal movement is further arranged between the brake drum and the rotating disc, and the return spring is used for providing elastic force to restrain the centrifugal movement of the centrifugal brake blocks.
2. A monorail conveyor overspeed brake as defined in claim 1, wherein said return spring has a spring rate matching an upper monorail conveyor speed limit such that when the monorail conveyor speed reaches the upper monorail conveyor speed limit, said centrifugal brake shoe is subjected to a centrifugal force capable of overcoming the spring force imparted by said return spring and causing sliding friction between said centrifugal brake shoe and said brake drum.
3. A monorail conveyor overspeed brake as set forth in claim 2, wherein said centrifugal brake shoe is provided with a friction plate, and when the running speed of the monorail conveyor reaches an upper limit value, sliding friction is formed between the friction plate on said centrifugal brake shoe and said brake drum.
4. A monorail conveyor overspeed brake as claimed in any one of claims 1-3, wherein each said centrifugal brake shoe is evenly distributed along a circumferential direction.
5. The monorail conveyor overspeed brake of claim 4, wherein said centrifugal brake shoe is fan-ring shaped, and said friction plate is disposed on an outer cylindrical surface of said centrifugal brake shoe.
6. A monorail conveyor overspeed brake as claimed in any one of claims 1-3, wherein a plurality of mutually independent slide grooves for placing centrifugal brake shoes are provided on said rotating disc in a circumferential direction, each slide groove placing one of said centrifugal brake shoes.
7. A monorail conveyor overspeed brake as claimed in any one of claims 1-3, wherein said return spring is serially connected to each said centrifugal brake shoe in turn.
8. The monorail conveyor overspeed brake of claim 7, wherein said return spring is of a loop-like configuration and is connected to each of said centrifugal brake shoes.
9. A monorail conveyor overspeed brake as claimed in claim 8, wherein a circular arc groove for placing said return spring is provided on said centrifugal brake shoe.
10. The monorail conveyor overspeed brake of any one of claims 1-3, wherein there are three centrifugal brake shoes, three centrifugal brake shoes are evenly distributed in the circumferential direction, there are three slide grooves, and three slide grooves are distributed in the circumferential direction.
CN202110291895.9A 2021-03-18 2021-03-18 Overspeed brake of monorail conveyor Pending CN112815022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110291895.9A CN112815022A (en) 2021-03-18 2021-03-18 Overspeed brake of monorail conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110291895.9A CN112815022A (en) 2021-03-18 2021-03-18 Overspeed brake of monorail conveyor

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CN112815022A true CN112815022A (en) 2021-05-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023246635A1 (en) * 2022-06-22 2023-12-28 江苏恒立液压股份有限公司 Centrifugal brake and lifting electric cylinder

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54123665A (en) * 1978-03-18 1979-09-26 Hitachi Ltd Brake device
JPH06257628A (en) * 1993-03-03 1994-09-16 Wakayama Nainenki Kk Centrifugal type brake device
US20050058536A1 (en) * 2003-09-16 2005-03-17 Eurocopter Deutschland Gmbh Rotor brake as well as rotor and rotary-wing aircraft with such a rotor brake
CN203280927U (en) * 2013-05-23 2013-11-13 中际联合工业技术(北京)有限公司 Friction device of lifesaving descent control device
EP3088763A1 (en) * 2015-04-30 2016-11-02 Johnson Electric S.A. Drive actuator
CN108343687A (en) * 2018-01-16 2018-07-31 咸阳超越离合器有限公司 A kind of brake shoe formula centrifugal clutch
CN208364638U (en) * 2018-06-01 2019-01-11 华东交通大学 A kind of freewheel clutch suitable for monorail conveyer
CN111425535A (en) * 2020-04-08 2020-07-17 桂林电子科技大学 Hierarchical formula drum brake

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54123665A (en) * 1978-03-18 1979-09-26 Hitachi Ltd Brake device
JPH06257628A (en) * 1993-03-03 1994-09-16 Wakayama Nainenki Kk Centrifugal type brake device
US20050058536A1 (en) * 2003-09-16 2005-03-17 Eurocopter Deutschland Gmbh Rotor brake as well as rotor and rotary-wing aircraft with such a rotor brake
CN203280927U (en) * 2013-05-23 2013-11-13 中际联合工业技术(北京)有限公司 Friction device of lifesaving descent control device
EP3088763A1 (en) * 2015-04-30 2016-11-02 Johnson Electric S.A. Drive actuator
CN108343687A (en) * 2018-01-16 2018-07-31 咸阳超越离合器有限公司 A kind of brake shoe formula centrifugal clutch
CN208364638U (en) * 2018-06-01 2019-01-11 华东交通大学 A kind of freewheel clutch suitable for monorail conveyer
CN111425535A (en) * 2020-04-08 2020-07-17 桂林电子科技大学 Hierarchical formula drum brake

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023246635A1 (en) * 2022-06-22 2023-12-28 江苏恒立液压股份有限公司 Centrifugal brake and lifting electric cylinder

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Application publication date: 20210518

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