CN105291044A - Replacing method for motor train unit braking clamp brake pad and replacing tool for brake pad - Google Patents
Replacing method for motor train unit braking clamp brake pad and replacing tool for brake pad Download PDFInfo
- Publication number
- CN105291044A CN105291044A CN201510729211.3A CN201510729211A CN105291044A CN 105291044 A CN105291044 A CN 105291044A CN 201510729211 A CN201510729211 A CN 201510729211A CN 105291044 A CN105291044 A CN 105291044A
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- China
- Prior art keywords
- brake
- brake lining
- shift fork
- main body
- instrument
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a replacing method for a motor train unit braking clamp brake pad and a replacing tool for the brake pad. The replacing tool for the brake pad is provided with a tabular main body. An oil cavity is formed in the position close to the back end of the tabular main body. The main body is provided with an oil passage leading to the bottom of the oil cavity. The oil passage is connected with an external manual pump. A piston is arranged inside the oil cavity, a piston rod stretches out of the main body in an upward mode, and the top end of the piston rod is connected with a shift fork. The length that the shift fork stretches out of the front end surface of the main body, that is, the stretching length H of the shift fork is greater than half the length L of a mounting rack of the braking clamp brake pad. The length K on the main body from the center line 2a of the piston to the front end surface of the main body meets the following requirement that K>(F*H)/(P*S). The replacing method for the motor train unit braking clamp brake pad and the replacing tool for the brake pad are suitably used in the special environment for replacing the braking clamp brake pad, using is stable, toppling is avoided, resetting of a brake modulator can be realized quickly and easily, and damage to parts can be prevented.
Description
Technical field
The present invention relates to EMUs brake clamp brake lining replacing options and brake lining replacing instrument.
Background technology
Bullet train EMUs design service life is longer, generally all need to be greater than 20 years, and in utilization process, the average life of the accessory-brake lining of brake clamp only has between 3-6 month, often row EMUs are equipped with 80-96 brake clamp, so in EMUs life-cycle utilization process, brake clamp brake lining need be changed in a large number through a lot of round.
Brake clamp as shown in Figure 1 and brake disc schematic diagram, brake clamp A has pedestal 11, two brake head devices 12, two cylinder components 13, two locks and adjusts device 14, brake lining installing rack 15 and two brake plate support devices 17.Two oil pockets and two cavitys that are symmetrical in pedestal center line 11a are provided with in pedestal, above-mentioned two cylinder components 13 are in two oil pockets respectively, above-mentioned two locks adjust device 14 to be in two cavitys respectively, above-mentioned two brake head devices 12 are fixed on the two ends of pedestal oil cylinder side and are symmetrical in pedestal center line 11a, and above-mentioned two brake plate support devices 17 are separately fixed at the two ends of the anti-oil cylinder side of pedestal 11 and are symmetrical in pedestal center line 11a.Brake head device 12 comprises can the steady pin 12-1 of movement in housing, and cylinder component 13 comprises piston 13-1, and lock adjusts the structure of device 14 to see the description of China Patent No. 200720046473.0 utility model, and lock adjusts device 14 to have mandrel 14-1.Above-mentioned brake lining installing rack 15 is connected on the steady pin 12-1 of brake head the device 12 and mandrel 14-1 of lock tune device 14, brake lining installing rack 15 is U-shaped frame, there is gathering sill, the first brake lining 16 is installed in the gathering sill of brake lining installing rack 15, two brake plate support devices 17 are installed the second brake lining 18.During braking, promote the first brake lining 16 by the piston 13-1 of cylinder component and support and brake disc B, because brake clamp is floated structure, to support and after brake disc, the second brake lining 18 passive movement, until support and brake disc at the first brake lining.Brake clamp is when initial mounting state, and it is 5-7mm that two panels brake lining and brake disc reserve total backlash.In EMUs utilization process, brake lining constantly weares and teares, brake clamp realizes the gap stepless changing between the first brake lining 16 and brake disc B by the one-way movement of lock tune device, also realize the gap stepless changing between the second brake lining 18 and brake disc B, to ensure that gap between brake lining and card is for definite value simultaneously.While replacing brake lining, the mandrel 14-1 of device 14 need be adjusted to force compression to reset lock by external force.Do not have the special instrument adjusting device to reset for lock at present, can only adopt crowbar during reset, crowbar is not easy to operate, easily occurs that the situations such as device not exclusively resets adjusted by part injury, lock simultaneously.
The utility model patent of China Patent No. 93233435.0 describes a kind of hydraulic jack, is connected with Z-shaped hook plate at the external part of sliding oil cylinder, needs the space of more than 35 millimeters just can use below weight.The utility model patent of China Patent No. 201020280888.6 describes a kind of hydraulic jack being suitable for small space and using, and top land is provided with Z-shaped gripper shoe.The tool design that above-mentioned two patents use when being not and changing for EMUs brake clamp brake lining, the instrument cannot changed as brake clamp brake lining uses.
Summary of the invention
An object of the present invention proposes a kind of brake clamp brake lining replacing options that the lock of brake clamp tune device can be resetted fast, easily, steadily and with no damage, and two of object of the present invention is a kind of structure simple brake lining replacing instruments proposing to realize above-mentioned replacing options.
For reaching above-mentioned first object, the present invention takes following technical scheme: the present invention includes brake clamp, brake disc and brake lining and change instrument, described brake clamp comprises pedestal, two cavitys being symmetrical in pedestal center line are provided with in pedestal, respectively be provided with lock in two cavitys and adjust device, the two ends of pedestal are respectively fixed with the brake head device being symmetrical in pedestal center line, and a brake lining installing rack is symmetrical in the bottom that pedestal center line is connected to two brake head devices and two locks tune device, described brake lining is changed instrument and is had flat shaped body, flat shaped body rear end is provided with oil pocket, main body is provided with the oily passage led to bottom oil pocket, oil passage is connected with outside manual pump, piston is provided with in oil pocket, its piston rod protrudes upward main body, the top of piston rod connects shift fork, the extension elongation H of length and shift fork that shift fork stretches out body front end is greater than the half of brake clamp brake lining installing rack length L, in main body from piston centreline to the length K(unit of body front end end face: m) meet following requirement: K > (F × H)/(P × S), in formula: F is that device reset resistance (unit: N) adjusted by lock, H is the extension elongation (unit: m) of shift fork, P is manual pump rated pressure (unit: Pa), S is piston area (unit: m
2),
Brake clamp replacing options is as follows: after extracting brake lining out, unload a brake head device on lower brake pad installing rack, instrument of being changed by brake lining is placed in side brake disc unloading brake head device, shift fork stretches between brake lining installing rack and brake disc and the front end surface of shift fork exceeds pedestal center line, by manual pump, hydraulic oil is injected the oil pocket that brake lining changes instrument, promote piston, shift fork rises through brake lining installing rack and drives lock to adjust device to reset, after completing the reset of lock tune device, shed manual pump pressure, backward stroke of the piston is moved, withdraw from brake lining and change instrument, load new brake lining, complete a brake lining and change operation.
The shift fork that described brake lining changes instrument is Z-shaped, and by upper cross plate, middle riser, lower cross plate is end to end forms.
The upper surface that described brake lining changes the lower cross plate front end of instrument is provided with boss, and when using brake lining to change instrument, boss is against on the brake lining installing rack position between two locks tune devices.
The main body that described brake lining changes instrument is provided with crescent lightening grooves.
For reaching above-mentioned second object, the present invention takes following technical scheme: brake lining of the present invention is changed instrument and had flat shaped body, the nearly rear end of flat shaped body is provided with oil pocket, main body is provided with the oily passage led to bottom oil pocket, oil passage is connected with outside manual pump, piston is provided with in oil pocket, piston rod protrudes upward main body, the top of piston rod connects shift fork, the extension elongation H of length and shift fork that shift fork stretches out body front end face is greater than the half of brake clamp brake lining installing rack length L, in main body from piston centreline 2a to the length K(unit in body front end face: m) meet following requirement: K > (F × H)/(P × S), in formula, F is that device reset resistance (unit: N) adjusted by lock, H is the extension elongation (unit: m) of shift fork, P is manual pump rated pressure (unit: Pa), S is piston area (unit: m
2).
Described shift fork is Z-shaped, and by upper cross plate, middle riser, lower cross plate is end to end forms.
The upper surface of described lower cross plate front end is provided with boss.
Described main body is provided with crescent lightening grooves.
The present invention has following good effect: 1. brake lining of the present invention is changed instrument and had flat shaped body, is suitable for use in the particular surroundings changed brake clamp brake lining and structure is simple.2. pair brake lining is changed on tool body has requirement from piston centreline to the length K in body front end face, and brake lining is changed when instrument uses can not topple over.3. the extension elongation H of shift fork reaches requirement, and when making brake lining change instrument use, shift fork can exceed pedestal center line, adjusts the force of devices balanced to two locks, and two locks adjust devices synchronously steadily to reset.4. driving shift fork owing to adopting oil pressure to promote piston, when adjusting device to reset to lock, can realize resetting fast, easily.5. the shift fork that brake lining changes instrument supports and the bottom surface of brake lining installing rack, coming to adjust the mandrel of device to reset to lock, can prevent mandrel and other part injury by promoting brake lining installing rack.6. the shift fork front end of brake lining replacing instrument is provided with boss, and during use, boss is on the brake lining installing rack position between two locks tune devices, is more conducive to stablizing when lock adjusts device to reset.
Accompanying drawing explanation
Fig. 1 is brake clamp and brake disc schematic diagram.
Fig. 2 is the schematic diagram that brake lining changes instrument.
Fig. 3 is that brake lining changes instrument using state schematic diagram.
Detailed description of the invention
Embodiment 1
See Fig. 1 and Fig. 2, the present embodiment comprises brake clamp A, brake disc B and brake lining and changes instrument W.
Described brake clamp A comprises pedestal 11, two oil pockets and two cavitys that are symmetrical in pedestal center line are provided with in pedestal, cylinder component 13 is respectively provided with in two oil pockets, respectively be provided with lock in two cavitys and adjust device 14, respectively be fixed with brake head device 12, the brake lining installing rack 15 being symmetrical in pedestal center line 11a on pedestal 11 and at the two ends of oil cylinder side and be symmetrical in the bottom that pedestal center line 11a is connected to two brake head devices 12 and two locks tune device 14.
Described brake lining is changed instrument W and is had flat shaped body 1, and flat shaped body 1 rear end is provided with oil pocket, and the bottom surface of main body 1 is provided with crescent lightening grooves 1-2.Main body 1 is provided with the oily passage 1-1 led to bottom oil pocket, oil passage is connected with outside manual pump, piston 2 is provided with in oil pocket, be provided with stop ring 3 at the opening part of oil pocket, its piston rod 2-1 protrudes upward main body by stop ring 3, and the top of piston rod 2-1 connects shift fork 4, shift fork 4 is Z-shaped, by upper cross plate 4-1, middle riser 4-2, lower cross plate 4-3 is end to end forms, and shift fork 4 utilizes upper cross plate 4-1 bolt to be connected on piston rod 2-1, and the upper surface of lower cross plate 4-3 front end is provided with boss 4-4.
On shift fork, the thickness J at corresponding boss 4-4 position is less than the interval S between brake lining installing rack 15 and brake disc B, and shift fork 4 can be stretched between brake lining installing rack 15 and brake disc B.The extension elongation H of length and shift fork that shift fork 4 stretches out body front end is greater than the half of brake clamp brake lining installing rack length L, and the front end of shift fork 4 can be made during use to exceed brake clamp pedestal center line 11a.
In main body 1 from piston centreline 2a to the length K(unit of front end surface: m) meet following requirement: K > (F × H)/(P × S), in formula: F is that device reset resistance (unit: N) adjusted by lock, H is the extension elongation (unit: m) of shift fork, P is manual pump rated pressure (unit: Pa), and S is piston area (unit: m
2).
In the present embodiment, brake lining installing rack length L is 410mm, interval S between brake lining installing rack 15 and brake disc B is 25mm, lock adjusts device reset resistance F to be 3320N, manual pump rated pressure P is 8MPa, and the extension elongation H that brake lining changes the shift fork of instrument is 230mm, and the thickness J at the boss 4-4 position of shift fork is 22mm, the piston diameter that brake lining changes instrument is 29mm, and the principal length that brake lining changes instrument is 146mm.
See Fig. 3, brake clamp replacing options is as follows: after extracting brake lining out, unload a brake head device on lower brake pad installing rack 15, brake lining is changed instrument W and be placed in side brake disc B unloading brake head device, shift fork 4 stretches between brake lining installing rack 15 and brake disc B and the front end surface of shift fork 4 exceeds pedestal center line 11a, boss 4-4 is relative, and two locks are adjusted on brake lining installing rack 15 position between device 14, and optimum state is that the center line of boss 4-4 overlaps with pedestal center line 11a.By manual pump, hydraulic oil is injected the oil pocket that brake lining changes instrument, promote piston, shift fork 4 rises, and boss 4-4 supports and brake lining installing rack 15, lock is driven to adjust device to reset by brake lining installing rack 15, after completing the reset of lock tune device, shed manual pump pressure, backward stroke of the piston is moved, withdraw from brake lining and change instrument W, load new brake lining, the brake head device unloaded is reinstalled, complete a brake lining and change operation.
Claims (8)
1. an EMUs brake clamp brake lining replacing options, comprise brake clamp (A), brake disc (B) and brake lining and change instrument (W), described brake clamp (A) comprises pedestal (11), two cavitys being symmetrical in pedestal center line (11a) are provided with in pedestal, respectively be provided with lock in two cavitys and adjust device (14), the two ends of pedestal (11) are respectively fixed with the brake head device (12) being symmetrical in pedestal center line (11a), and a brake lining installing rack (15) is symmetrical in the bottom that pedestal center line is connected to two brake head devices (12) and two locks tune device (14), described brake lining is changed instrument (W) and is had flat shaped body (1), flat shaped body (1) rear side is provided with oil pocket, main body (1) is provided with the oily passage (1-1) led to bottom oil pocket, oil passage is connected with outside manual pump, piston (2) is provided with in oil pocket, its piston rod (2-1) protrudes upward main body (1), the top of piston rod (2-1) connects shift fork (4), the extension elongation H of length and shift fork that shift fork (4) stretches out body front end is greater than the half of brake clamp brake lining installing rack length L, main body (1) meets following requirement from piston centreline (2a) to the length K of body front end end face: K > (F × H)/(P × S), in formula, F is that device reset resistance adjusted by lock, H is the extension elongation of shift fork, P is manual pump rated pressure, S is piston area,
Brake clamp brake lining replacing options is as follows: after extracting brake lining out, unload a brake head device on lower brake pad installing rack (15), brake lining is changed instrument (W) and be placed in side brake disc (B) unloading brake head device, shift fork (4) stretches between brake lining installing rack (15) and brake disc (B) and the front end surface of shift fork (4) exceeds pedestal center line (11a), by manual pump, hydraulic oil is injected the oil pocket that brake lining changes instrument, promote piston, shift fork (4) rises through brake lining installing rack (15) and drives lock to adjust device to reset, after completing the reset of lock tune device, shed manual pump pressure, backward stroke of the piston is moved, withdraw from brake lining and change instrument (W), load new brake lining, the brake head device unloaded is reinstalled, complete a brake lining and change operation.
2. EMUs brake clamp brake lining replacing options according to claim 1, is characterized in that: the shift fork (4) that described brake lining changes instrument (W) is Z-shaped, and by upper cross plate (4-1), middle riser (4-2), lower cross plate (4-3) is end to end forms.
3. EMUs brake clamp brake lining replacing options according to claim 2, it is characterized in that: the upper surface that described brake lining changes lower cross plate (4-3) front end of instrument (W) is provided with boss (4-4), when using brake lining to change instrument, boss (4-4) is against on brake lining installing rack (15) position between two locks tune device (14).
4. EMUs brake clamp brake lining replacing options according to claim 1 and 2, is characterized in that: the main body (1) that described brake lining changes instrument (W) is provided with crescent lightening grooves (1-2).
5. a brake lining changes instrument, it is characterized in that: there is flat shaped body (1), the nearly rear end of flat shaped body (1) is provided with oil pocket, main body (1) is provided with the oily passage (1-1) led to bottom oil pocket, oil passage is connected with outside manual pump, piston (2) is provided with in oil pocket, piston rod (2-1) protrudes upward main body (1), the top of piston rod (2-1) connects shift fork (4), the extension elongation H of length and shift fork that shift fork (4) stretches out body front end face is greater than the half of brake clamp brake lining installing rack length L, main body (1) meets following requirement from piston centreline 2a to the length K in body front end face: K > (F × H)/(P × S), in formula, F is that device reset resistance adjusted by lock, H is the extension elongation of shift fork, P is manual pump rated pressure, S is piston area.
6. brake lining according to claim 5 changes instrument, it is characterized in that: described shift fork (4) is Z-shaped, and by upper cross plate (4-1), middle riser (4-2), lower cross plate (4-3) is end to end forms.
7. brake lining according to claim 6 changes instrument, it is characterized in that: the upper surface of described lower cross plate (4-3) front end is provided with boss (4-4).
8. the brake lining according to claim 5 or 6 changes instrument, it is characterized in that: described main body (1) is provided with crescent lightening grooves (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729211.3A CN105291044B (en) | 2015-10-30 | 2015-10-30 | EMUs brake clamp brake lining replacing options and brake lining change instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729211.3A CN105291044B (en) | 2015-10-30 | 2015-10-30 | EMUs brake clamp brake lining replacing options and brake lining change instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105291044A true CN105291044A (en) | 2016-02-03 |
| CN105291044B CN105291044B (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510729211.3A Active CN105291044B (en) | 2015-10-30 | 2015-10-30 | EMUs brake clamp brake lining replacing options and brake lining change instrument |
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| CN (1) | CN105291044B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0624735A1 (en) * | 1993-05-08 | 1994-11-17 | AlliedSignal Bremsbelag GmbH | Brake lining for disc brakes, particularly for high speed trains |
| KR200184413Y1 (en) * | 1999-12-17 | 2000-06-01 | 강영수 | Exchange tool for disk brake pad |
| CN2905348Y (en) * | 2006-04-27 | 2007-05-30 | 刘建 | Portable hydraulic roller replacing machine |
| CN201777823U (en) * | 2010-08-03 | 2011-03-30 | 广州铁路职业技术学院 | Hydraulic jack suitable for narrow space |
| CN102384195A (en) * | 2011-11-15 | 2012-03-21 | 大连交通大学 | Combined floating-type damper brake |
| CN102943830A (en) * | 2012-11-23 | 2013-02-27 | 常州南车铁马科技实业有限公司 | Hydraulic braking clamp for track traffic |
| CN203245571U (en) * | 2012-12-25 | 2013-10-23 | 常州南车铁马科技实业有限公司 | Dismounting apparatus for brake adjuster of motor-car clamp |
| CN204053406U (en) * | 2014-09-18 | 2014-12-31 | 南车株洲电力机车有限公司 | Brake lining base body assembling in a kind of clamping mechanism |
| CN104310266A (en) * | 2014-11-19 | 2015-01-28 | 杭州富阳泳富机械有限公司 | Novel hydraulic claw jack |
| CN204553643U (en) * | 2014-12-31 | 2015-08-12 | 常州南车铁马科技实业有限公司 | A kind of clearance adjuster of hydraulic braking clamping mechanism |
| CN205237963U (en) * | 2015-10-30 | 2016-05-18 | 常州南车铁马科技实业有限公司 | Instrument is changed to EMUs braking clamp brake lining |
-
2015
- 2015-10-30 CN CN201510729211.3A patent/CN105291044B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0624735A1 (en) * | 1993-05-08 | 1994-11-17 | AlliedSignal Bremsbelag GmbH | Brake lining for disc brakes, particularly for high speed trains |
| KR200184413Y1 (en) * | 1999-12-17 | 2000-06-01 | 강영수 | Exchange tool for disk brake pad |
| CN2905348Y (en) * | 2006-04-27 | 2007-05-30 | 刘建 | Portable hydraulic roller replacing machine |
| CN201777823U (en) * | 2010-08-03 | 2011-03-30 | 广州铁路职业技术学院 | Hydraulic jack suitable for narrow space |
| CN102384195A (en) * | 2011-11-15 | 2012-03-21 | 大连交通大学 | Combined floating-type damper brake |
| CN102943830A (en) * | 2012-11-23 | 2013-02-27 | 常州南车铁马科技实业有限公司 | Hydraulic braking clamp for track traffic |
| CN203245571U (en) * | 2012-12-25 | 2013-10-23 | 常州南车铁马科技实业有限公司 | Dismounting apparatus for brake adjuster of motor-car clamp |
| CN204053406U (en) * | 2014-09-18 | 2014-12-31 | 南车株洲电力机车有限公司 | Brake lining base body assembling in a kind of clamping mechanism |
| CN104310266A (en) * | 2014-11-19 | 2015-01-28 | 杭州富阳泳富机械有限公司 | Novel hydraulic claw jack |
| CN204553643U (en) * | 2014-12-31 | 2015-08-12 | 常州南车铁马科技实业有限公司 | A kind of clearance adjuster of hydraulic braking clamping mechanism |
| CN205237963U (en) * | 2015-10-30 | 2016-05-18 | 常州南车铁马科技实业有限公司 | Instrument is changed to EMUs braking clamp brake lining |
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| Publication number | Publication date |
|---|---|
| CN105291044B (en) | 2017-07-07 |
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