CN107882900A - Brake and engineering truck - Google Patents

Brake and engineering truck Download PDF

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Publication number
CN107882900A
CN107882900A CN201711417162.5A CN201711417162A CN107882900A CN 107882900 A CN107882900 A CN 107882900A CN 201711417162 A CN201711417162 A CN 201711417162A CN 107882900 A CN107882900 A CN 107882900A
Authority
CN
China
Prior art keywords
housing
friction member
driving part
brake
duct
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
CN201711417162.5A
Other languages
Chinese (zh)
Inventor
石国国
吕昌
程大海
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.)
Jiangsu XCMG Construction Machinery Institute Co Ltd
Original Assignee
Construction Machinery Branch of XCMG
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 Construction Machinery Branch of XCMG filed Critical Construction Machinery Branch of XCMG
Priority to CN201711417162.5A priority Critical patent/CN107882900A/en
Publication of CN107882900A publication Critical patent/CN107882900A/en
Pending legal-status Critical Current

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Classifications

    • 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

Abstract

The present invention relates to a kind of brake and engineering truck.Brake includes：Housing (6)；Moving component (18), it is at least partially disposed in housing (6) and can be moved relative to housing (6)；First friction member (1), it is located in housing (6) and is connected with housing (6), for braking moving component (18)；Driving part (9), it is located in housing (6) and can be moved relative to housing (6), driving part (9) is used to push the first friction member (1) so that moving component (18) is braked；And first throttle duct (14), it is located on housing (6), for introducing the hydraulic fluid for moving driving part (9).Using the technical scheme, impact of the driving part (9) to other parts is advantageously reduced so that the process of braking or the releasing braking of brake becomes soft.

Description

Brake and engineering truck
Technical field
The present invention relates to engineering machinery field, in particular to a kind of brake and engineering truck.
Background technology
In the prior art, brake includes cartridge, the rotating shaft being rotatably arranged in cartridge and for making to turn The friction member of axle braking.Friction member can move relative to cartridge, with the first state and releasing for making rotating shaft braking Second state of the braking of rotating shaft.
Brake also includes being used to drive the driving part that friction member move relative to cartridge, driving part with First position corresponding to the first state of friction member and the second place corresponding with the second state of friction member.
Rotating shaft is coaxially disposed with cartridge.Friction member includes the first friction member being connected with the inner peripheral surface of cartridge The second friction member being connected with the side face with rotating shaft.First friction member and the second friction, which are in contact, enables to rotating shaft to stop turning It is dynamic.
Axial movement of the driving part along cartridge is to push the first friction member and the second friction member, so that rotating shaft Braking.
Brake also includes being located at the end cap of one end of cartridge and the elastic portion between end cap and driving part Part, elastomeric element are used to push driving part towards first position.End cap is bolted in the end of cartridge.
Brake also includes hydraulic fluid chamber, and the hydraulic fluid that hydraulic fluid chamber introduces is used for driving part towards second Put pushing.
When friction member needs to make rotating shaft releasing braking, hydraulic fluid chamber introduces hydraulic fluid so that driving part overcomes elasticity The elastic force of part and towards the second place move；When friction member needs to make the rotating shaft brake, hydraulic fluid discharge hydraulic fluid, driving Part moves under the pushing of elastomeric element towards first position.
In the prior art, rotating shaft is connected with speed reducer drive, in order to reduce the abrasion of friction member, is stopped operating in reductor Afterwards, friction member brakes rotating shaft again.Therefore, if the speed that is moved towards the second place of driving part is excessive, will cause to friction The infringement of part.
If the speed that driving part moves towards first position is larger, the attachment structure of end cap and cartridge will be caused Infringement.
The content of the invention
The present invention is intended to provide a kind of brake and engineering truck, to improve the problem of driving part translational speed is larger.
One side according to embodiments of the present invention, the invention provides a kind of brake, brake includes：
Housing；
Moving component, is at least partially disposed in housing and can be relative to housing motion；
First friction member, it is located in housing and is connected with housing, for braking moving component；
Driving part, be located in housing and can relative to housing motion, driving part be used to pushing the first friction member with Brake moving component；And
First throttle duct, is located on housing, for introducing the hydraulic fluid for moving driving part.
Alternatively, the cross-sectional area in first throttle duct is 2mm2To 5mm2。
Alternatively, brake also includes the second throttling duct being located on housing, for discharging hydraulic fluid.
Alternatively, the cross-sectional area in the second throttling duct is 0.5mm2To 2mm2。
Alternatively,
The length in first throttle duct is more than 1.5 times of the cross-sectional area in first throttle duct；And/or
The length in the second throttling duct is more than 1.5 times of the cross-sectional area in the second throttling duct.
Alternatively, brake also includes：
Elastomeric element, for pushing driving part in the first direction, so that moving component is braked；
The hydraulic fluid that first throttle duct introduces is used to push driving part in a second direction, so that the first friction member solution Except the braking to moving component, second direction are opposite with first direction.
Alternatively,
Moving component includes rotating shaft, and the first friction member circumferentially extends along rotating shaft.
Alternatively, brake also includes the circumferentially extending along rotating shaft and the second friction member being connected with rotating shaft, the second friction Part is used to mutually extrude with the first friction member so that moving component is braked.
Alternatively, the first friction member or the second friction member are at least two, the first friction member and the second friction member alternating cloth Put.
Alternatively,
Housing includes the first paragraph and second segment that are arranged side by side, and second segment internal diameter is more than first paragraph, with first paragraph and the First terrace is formed between two sections；
Driving part includes the second segment size fit with the Part I of the first paragraph size fit of housing and with housing Part II, second step face is formed between Part I and Part II；
The hydraulic fluid chamber with first throttle hole link is formed between First terrace and second step face.
Alternatively, brake also includes：
First seal member, it is located between the first paragraph of housing and the Part I of driving part；And
Second seal member, it is located between the second segment of housing and the Part II of driving part.
Alternatively, brake also includes first throttle part, for being formed thereon first throttle duct, is set on housing There is the first mounting hole for installing first throttle part.
According to the another aspect of the application, a kind of engineering truck is additionally provided, the engineering truck includes weighing above-mentioned braking Device.
Using the technical scheme of the application, hydraulic fluid is delivered to housing by the first throttle duct being located on housing It is interior, the motion of the first friction member driving part is pushed to be used in, is advantageous to reduce the speed of driving part, reduces driving part pair The impact of other parts.
Further, it is also beneficial to after ensureing that reductor stops operating, the first friction member brakes moving component again, to carry The service life of high friction member.
Further, throttling duct will be located on the housing of brake, be advantageous to simplify the structure of brakes.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its Advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 shows the structural representation of the brake of embodiments of the invention；
Fig. 2 shows the structural representation of the first throttle part of the brake of embodiments of the invention；
Fig. 3 shows the schematic diagram of the brake of embodiments of the invention.
In figure：1st, the first friction member；2nd, the first seal member；3rd, hydraulic fluid chamber；4th, the second throttling duct；5th, second is close Seal part；6th, housing；7th, the first bolt；8th, elastomeric element；9th, driving part；10th, the first end cap；11st, clutch shaft bearing；12nd, One bearing cap；13rd, the second bolt；14th, first throttle duct；15th, the second friction member；16th, the second end cap；17th, second bearing； 18th, moving component；18a, rotating shaft；18b, protuberance；19th, second bearing lid；20th, connector；21st, the 3rd bolt；22nd, the 4th spiral shell Bolt；23rd, pump；24th, hydraulic fluid reservoir；25th, power source；26th, overflow valve；27th, valve；28th, first throttle part.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Below Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes Any restrictions.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Fig. 1 shows the structural representation of the brake of the present embodiment；Fig. 3 shows the principle of the brake of the present embodiment Figure.
With reference to shown in Fig. 1 and Fig. 2, the brake of the present embodiment includes housing 6, the moving component being partly located in housing 6 18th, the drive for being located at the first friction member 1 being connected in housing 6 and with housing 6, being located in housing 6 and being moved relative to housing 6 Dynamic component 9 and the first throttle duct 14 for being located at the hydraulic fluid for moving driving part 9 for introducing on housing 6.
Driving part 9 is used to push the first friction member 1, so that moving component 18 is braked.Hydraulic fluid is laggard by throttling Enter thrust motion part 18 in housing 6, advantageously reduce the impact to other parts in the motion process of moving component 18, also have Become soft beneficial to the braking procedure for causing moving component 18 or the process for releasing braking.
Alternatively, brake also includes first throttle part 28, for being formed on first throttle duct 14.Fig. 2 shows The structural representation of first throttle part 28 is gone out.Housing 6 is provided with the first mounting hole, and first throttle part 28 is arranged on first In mounting hole.
First friction member 1 can move relative to housing 6, with the first state and releasing for making the braking of moving component 18 Second state of the braking of moving component 18.
Driving part 9 moves relative to housing 6, with make the first friction member 1 be in first state first position and The first friction member 1 is set to be in the second place of the second state.
Brake also includes being used for the elastomeric element 8 for pushing driving part 9 in the first direction, so that driving part 9 is in First position, so that moving component 18 is braked.
The hydraulic fluid that first throttle duct 14 introduces is used to push driving part 9 in a second direction, so that the first friction Part 1 releases the braking to moving component 18, and second direction is opposite with first direction.
When the power of the pushing driving part 9 for the hydraulic fluid that first throttle duct 14 introduces is more than the elastic force of elastomeric element 8 Afterwards, driving part 9 moves towards the second place, so that the first friction member 1 releases the braking to moving component 18.
Housing 6 includes the first paragraph and second segment that are arranged side by side, and second segment internal diameter is more than first paragraph, with first paragraph and the First terrace is formed between two sections.
Driving part 9 includes fitting with the Part I of the first paragraph size fit of housing 6 and with the second segment size of housing 6 The Part II matched somebody with somebody, second step face is formed between Part I and Part II.
The hydraulic fluid chamber 3 connected with first throttle duct 14 is formed between First terrace and second step face.
Brake also includes the first sealing being set between the first paragraph of housing 6 and the Part I of driving part 9 Part 2 and the second seal member 5 being set between the second segment of housing 6 and the Part II of driving part 9.
When needing to release the braking of moving component 18, flow of pressurized is provided to hydraulic fluid chamber 3 through first throttle duct 14 Body, driving part 9 is pushed in a second direction, elasticity of the power more than elastomeric element 8 of driving part 9 is pushed in hydraulic fluid During power, driving part 9 moves towards the second place, so that the first friction member 1 releases the braking to moving component 18.
Brake also includes being used to discharge the second throttling duct 4 of the hydraulic fluid in hydraulic fluid chamber 3.Needing to make fortune Dynamic component 18 brake when, second throttling duct 4 discharge hydraulic fluid, driving part 9 under the pushing of elastomeric element 8 towards first Move position.
Alternatively, brake also includes the second throttle part, for being formed on the second throttling duct 4.Set on housing 6 There is the second mounting hole.Second throttle part is arranged in the second mounting hole.
Hydraulic fluid discharges hydraulic fluid chamber 3 through the second throttling duct 4, is advantageous to reduce driving part 9 to other parts Impact, it is also possible that moving component 18 brake process become soft.
In the present embodiment, the cross-sectional area in first throttle duct 14 is 2mm2To 5mm2.The cross section in the second throttling duct 4 Product is 0.5mm2To 2mm2。
It is moved through to reduce the amplitude of the pressure change of the hydraulic fluid of the introducing of hydraulic fluid chamber 3, reduce driving part 9 Impact in journey, the length in first throttle duct 14 are more than 1.5 times of the cross-sectional area in first throttle duct 14.
It is moved through to reduce the amplitude of the pressure change of the hydraulic fluid of the discharge of hydraulic fluid chamber 3, reduce driving part 9 Impact in journey, the length in the second throttling duct 4 are more than 1.5 times of the cross-sectional area in the second throttling duct 4.
As shown in figure 1, the moving component 18 of the brake of the present embodiment includes rotating shaft 18a, the first friction member 1 is along rotating shaft Circumferentially extending, to improve the brake force that the first friction member 1 is applied to rotating shaft 18a, it is also beneficial to make it that rotating shaft 18a stress is equal Weighing apparatus.
Brake also includes the circumferentially extending along rotating shaft 18a and the second friction member 15 being connected with rotating shaft 18a, and second rubs Part 15 is wiped to be used to extrude so that moving component 18 is braked with the phase of the first friction member 1.
First friction member 1 and the second friction member 15 are along the axial arranged of rotating shaft 18a, axial direction of the driving part along rotating shaft 18a It is mobile, to push the friction member 15 of the first friction member 1 and second.
First friction member 1 is at least two, and the second friction member 15 is also at least two, the first friction member 1 and the second friction Part 15 is alternately arranged.
When driving part 9 is located at first position, driving part 9 pushes the first friction member 1 and the second friction member 15, will First friction member 1 and the second friction member 15 press together, so that moving component 18 is braked.
When driving part 9 is located at the second place, the first friction member 1 and the second friction member 15 are separated, to release motion The braking of part 18.
In order to prevent from releasing that first friction member 1 and the second friction member 15 are not completely separated after the braking of moving component 18, First friction member 1 can be relative to axial movement of the housing 6 along rotating shaft 18a, and the second friction member 15 can be relative to moving component 15 can be along rotating shaft 18a axial movement.
The inner surface of housing 6 is provided with the first projection, and the first friction member 1 and first projects through key connection.First friction Part 1 extends towards the direction away from housing 6, in order to first friction member 1 and the second friction when releasing the braking of moving component 18 Part 15 separates.
Moving component 18 also includes the radially protruding along rotating shaft 18a in rotating shaft 18a ring projections 18b.Brake also wraps The connector 20 being set on rotating shaft 18a is included, connector 20 is connected with protuberance 18b.
Second friction member 15 is connected on the outer peripheral face of connector 20.The outer peripheral face of connector 20 is provided with the second projection, Second projection passes through key connection with the second friction member 15.
Housing 6 is the cartridge coaxial with rotating shaft 18a.Brake also includes the first end for being located at the first end of housing 6 Lid 10.First end cap 10 is connected by the first bolt 7 with housing 6.
First end cap 10 is provided with clutch shaft bearing mounting hole, and brake also includes first be located in clutch shaft bearing mounting hole Bearing 11, clutch shaft bearing 11 are used to carry rotating shaft 18a.
Brake also includes the clutch shaft bearing lid 12 that lid is located on clutch shaft bearing mounting hole, clutch shaft bearing lid 12 and first end Lid 10 is connected by the second bolt 13.
Brake also includes the second end cap 16 for being located at the second end of housing 6, and the second end cap passes through the 3rd bolt with housing 6 21 connections.
Second end cap 16 is provided with second bearing mounting hole, and brake also includes second be located in second bearing mounting hole Bearing 17, second bearing 17 are used to carry rotating shaft 18a.
Brake is also located at second bearing lid 19 on second bearing mounting hole including lid, and second bearing lid 19 passes through the 4th spiral shell Bolt 22 is connected with the second end cap 16.
Second bearing lid 19 is provided with the through hole for allowing rotating shaft 18a to pass through, and rotating shaft 18a extends to housing 6 by the through hole Outside.
According to the another aspect of the application, the present embodiment also discloses a kind of engineering truck, and the engineering truck includes above-mentioned Brake.
As shown in figure 3, the brakes of engineering truck includes hydraulic fluid reservoir 24 and the pump connected with hydraulic fluid reservoir 24 23.Pump 23 is used for the hydraulic fluid chamber 3 that the hydraulic fluid in hydraulic fluid reservoir 24 is delivered to brake, so that driving part 9 Motion.
Brakes also includes the valve 27 being located between first throttle duct 14 and pump 23, for controlling pump 23 and first segment The break-make of circulation road 14.Brakes is also included with the overflow valve 26 of the outlet of pump 23 and for providing power to pump 23 Power source 25.
The exemplary embodiment of the present invention is the foregoing is only, is not intended to limit the invention, all spirit in the present invention Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims (13)

  1. A kind of 1. brake, it is characterised in that including：
    Housing (6)；
    Moving component (18), it is at least partially disposed in the housing (6) and can be moved relative to the housing (6)；
    First friction member (1), it is located in the housing (6) and is connected with the housing (6), for making the moving component (18) brake；
    Driving part (9), it is located in the housing (6) and can be moved relative to the housing (6), the driving part (9) For pushing first friction member (1) so that the moving component (18) is braked；And
    First throttle duct (14), it is located on the housing (6), for introducing the flow of pressurized for moving the driving part (9) Body.
  2. 2. brake according to claim 1, it is characterised in that the cross-sectional area of the first throttle duct (14) is 2mm2To 5mm2。
  3. 3. brake according to claim 1, it is characterised in that also include the second throttling being located on the housing (6) Duct (4), for discharging the hydraulic fluid.
  4. 4. brake according to claim 3, it is characterised in that it is described second throttling duct (4) cross-sectional area be 0.5mm2To 2mm2。
  5. 5. brake according to claim 3, it is characterised in that
    The length of the first throttle duct (14) is more than 1.5 times of the cross-sectional area of the first throttle duct (14)；And/or
    The length of second throttling duct (4) is more than 1.5 times of the cross-sectional area of the described second throttling duct (4).
  6. 6. brake according to claim 1, it is characterised in that also include：
    Elastomeric element (8), for pushing the driving part (9) in the first direction, so that the moving component (18) is braked；
    The hydraulic fluid that the first throttle duct (14) introduces is used to push the driving part (9) in a second direction, So that first friction member (1) releases the braking to the moving component (18), the second direction and the first direction Conversely.
  7. 7. brake according to claim 1, it is characterised in that
    The moving component (18) includes rotating shaft (18a), and first friction member (1) circumferentially extends along the rotating shaft (18a).
  8. 8. brake according to claim 7, it is characterised in that also including the circumferentially extending along the rotating shaft (18a), simultaneously The second friction member (15) being connected with the rotating shaft (18a), second friction member (15) are used for and first friction member (1) Mutually extrude so that the moving component (18) is braked.
  9. 9. brake according to claim 8, it is characterised in that first friction member (1) or second friction member (15) it is at least two, first friction member (1) and second friction member (15) are alternately arranged.
  10. 10. brake according to claim 1, it is characterised in that
    The housing (6) includes the first paragraph and second segment that are arranged side by side, and the second segment internal diameter is more than the first paragraph, with First terrace is formed between the first paragraph and the second segment；
    The driving part (9) include with the Part I of the first paragraph size fit of the housing (6) and with the housing (6) Second segment size fit Part II, second step face is formed between the Part I and the Part II；
    The flow of pressurized connected with the first throttle duct (14) is formed between the First terrace and the second step face Body room (3).
  11. 11. brake according to claim 10, it is characterised in that also include：
    First seal member (2), it is located between the first paragraph of the housing (6) and the Part I of the driving part (9)；With And
    Second seal member (5), it is located between the second segment of the housing (6) and the Part II of the driving part (9).
  12. 12. brake according to claim 1, it is characterised in that also including first throttle part (28), for thereon Face forms the first throttle duct (14), and the housing (6), which is provided with, is used to installing the of the first throttle part (28) One mounting hole.
  13. 13. a kind of engineering truck, it is characterised in that including the brake any one of claim 1 to 12.
CN201711417162.5A 2017-12-25 2017-12-25 Brake and engineering truck Pending CN107882900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711417162.5A CN107882900A (en) 2017-12-25 2017-12-25 Brake and engineering truck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711417162.5A CN107882900A (en) 2017-12-25 2017-12-25 Brake and engineering truck

Publications (1)

Publication Number Publication Date
CN107882900A true CN107882900A (en) 2018-04-06

Family

ID=61772278

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711417162.5A Pending CN107882900A (en) 2017-12-25 2017-12-25 Brake and engineering truck

Country Status (1)

Country Link
CN (1) CN107882900A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111503173A (en) * 2020-04-13 2020-08-07 徐工集团工程机械股份有限公司 Electromagnetic clutch device

Citations (11)

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Publication number Priority date Publication date Assignee Title
JP2003343622A (en) * 2002-05-29 2003-12-03 Mitsubishi Heavy Ind Ltd Wet multiple disk brake device for vehicle
US20060159581A1 (en) * 2005-01-18 2006-07-20 Thomas R. Fugle Rotary fluid pressure device and improved brake assembly for use therewith
CN201062643Y (en) * 2007-07-31 2008-05-21 徐州美驰车桥有限公司 Wet-type multi-disc brake for loader drive axle
JP2010190312A (en) * 2009-02-18 2010-09-02 Tcm Corp Abrasion amount detection device for brake
CN102345695A (en) * 2011-07-20 2012-02-08 徐州科源液压有限公司 Normally open brake of hydraulic transmission device
CN102720781A (en) * 2012-06-27 2012-10-10 怀特(中国)驱动产品有限公司 Normally closed disc type hydraulic brake
CN202579736U (en) * 2012-04-26 2012-12-05 山西半沟科技有限公司 Mine hydraulic spring safety brake
US20140023543A1 (en) * 2012-07-18 2014-01-23 Eaton Corporation Combined motor and brake with rotating brake-release piston
CN103912613A (en) * 2014-03-28 2014-07-09 南车戚墅堰机车车辆工艺研究所有限公司 Wet multi-disc parking brake
CN107500173A (en) * 2017-08-21 2017-12-22 枣庄矿业（集团）有限责任公司蒋庄煤矿 A kind of devices of brake systems in lifting and friction type winder
CN207961342U (en) * 2017-12-25 2018-10-12 徐工集团工程机械有限公司 Brake and engineering truck

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003343622A (en) * 2002-05-29 2003-12-03 Mitsubishi Heavy Ind Ltd Wet multiple disk brake device for vehicle
US20060159581A1 (en) * 2005-01-18 2006-07-20 Thomas R. Fugle Rotary fluid pressure device and improved brake assembly for use therewith
CN201062643Y (en) * 2007-07-31 2008-05-21 徐州美驰车桥有限公司 Wet-type multi-disc brake for loader drive axle
JP2010190312A (en) * 2009-02-18 2010-09-02 Tcm Corp Abrasion amount detection device for brake
CN102345695A (en) * 2011-07-20 2012-02-08 徐州科源液压有限公司 Normally open brake of hydraulic transmission device
CN202579736U (en) * 2012-04-26 2012-12-05 山西半沟科技有限公司 Mine hydraulic spring safety brake
CN102720781A (en) * 2012-06-27 2012-10-10 怀特(中国)驱动产品有限公司 Normally closed disc type hydraulic brake
US20140023543A1 (en) * 2012-07-18 2014-01-23 Eaton Corporation Combined motor and brake with rotating brake-release piston
CN104583585A (en) * 2012-07-18 2015-04-29 伊顿公司 Combined motor and brake with rotating brake-release piston
CN103912613A (en) * 2014-03-28 2014-07-09 南车戚墅堰机车车辆工艺研究所有限公司 Wet multi-disc parking brake
CN107500173A (en) * 2017-08-21 2017-12-22 枣庄矿业（集团）有限责任公司蒋庄煤矿 A kind of devices of brake systems in lifting and friction type winder
CN207961342U (en) * 2017-12-25 2018-10-12 徐工集团工程机械有限公司 Brake and engineering truck

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111503173A (en) * 2020-04-13 2020-08-07 徐工集团工程机械股份有限公司 Electromagnetic clutch device
CN111503173B (en) * 2020-04-13 2021-11-30 徐工集团工程机械股份有限公司 Electromagnetic clutch device

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