CN110307281B - Clamp mechanism, brake clamp and rail vehicle - Google Patents
Clamp mechanism, brake clamp and rail vehicle Download PDFInfo
- Publication number
- CN110307281B CN110307281B CN201910602239.9A CN201910602239A CN110307281B CN 110307281 B CN110307281 B CN 110307281B CN 201910602239 A CN201910602239 A CN 201910602239A CN 110307281 B CN110307281 B CN 110307281B
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- Prior art keywords
- brake pad
- brake
- pin
- piece
- limiting
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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
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
- F16D65/095—Pivots or supporting members therefor
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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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
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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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a clamp mechanism, a brake clamp and a railway vehicle, wherein the railway vehicle comprises the brake clamp, the brake clamp comprises a clamp mechanism and a brake pad, wherein the clamp mechanism comprises a clamp arm, a brake pad holder, a brake pad stop block, a brake pad holder pin, a pin hole, a first limiting part, a second limiting part and an anti-drop part, the brake pad holder is connected with the brake pad, the brake pad holder is connected with the clamp arm, the brake pad stop block is arranged on a brake pad stop block mounting part, the brake pad holder is hinged with the clamp arm through the brake pad holder pin, the pin hole passes through the brake pad holder and the clamp arm, the first limiting part is fixedly arranged in the pin hole, the second limiting piece is movably arranged in the pin hole, the second limiting piece is matched with the first limiting piece, the anti-dropping piece is fixedly connected with the second limiting piece, the anti-dropping piece is arranged corresponding to the brake pad stop block, when the second limiting part is contacted with the first limiting part, the anti-falling part is blocked at one side of the brake pad block. The brake pad support structure can better avoid the phenomenon that the brake pad falls off from the brake pad support under the condition of ensuring the brake pad dismounting efficiency.
Description
Technical Field
The invention belongs to the technical field of rail vehicle braking, and particularly relates to a clamp mechanism, a braking clamp and a rail vehicle.
Background
Brake calipers are used in disc brakes of rail vehicles. The brake clamp comprises a clamp mechanism and a brake pad. The conventional clamping mechanism is shown in fig. 1 and 2, and comprises a brake pad support pin 1 ', a brake pad support 2 ', a clamping arm 3 ', a brake pad stop 4 ' and a U-shaped spring pin 5 ', wherein the brake pad support pin 1 ' hinges the brake pad support 2 ' and the clamping arm 3 ' together, transmits the braking force applied by the clamping arm 3 ' to the brake pad support 2 ', and presses the brake pad on the brake disc by the brake pad support 2 ', so that the brake is realized by the friction between the brake pad and the brake disc. When the brake pad is installed, the brake pad is installed in the dovetail groove of the brake pad holder 2 ' through the dovetail structure, a brake pad stopper 4 ' locked by the U-shaped spring pin 5 ' is provided at an end of the dovetail groove to limit the axial movement of the brake pad, and the brake pad stopper 4 ' also transmits a part of braking friction force to the brake pad holder 2 '. However, once the U-shaped spring pin 5 'fails, the brake pad stop 4' is in a free state, and the limit function of the brake pad is disabled at any time, so that the brake pad falls off.
The previous brake lining secondary anticreep mode is for adopting wire rope to hold in the palm the lock solid with brake lining dog and brake lining, perhaps, adopts the split pin to establish ties brake lining dog and brake lining support together, when changing the brake lining, need bounce U-shaped spring catch to cut wire rope, perhaps lift the split pin off, drive the brake lining dog then and stretch out from the square groove that the brake lining held in the palm, and change the brake lining, treat that the brake lining is changed and accomplish the back, need install new wire rope, perhaps, reinstall the split pin.
However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems:
adopt the secondary anticreep mode of preceding brake lining, when changing the brake lining at every turn, all need carry out complicated dismouting operation to wire rope or split pin to the operation degree of difficulty and the intensity of labour of on-the-spot change brake lining have been increased.
Disclosure of Invention
The embodiment of the invention provides a clamp mechanism, a brake clamp comprising the clamp mechanism and a rail vehicle applying the brake clamp, so that the technical problem of failure of the limiting function of a brake pad under the condition of ensuring the brake pad dismounting efficiency is solved, and the brake pad is better prevented from falling off from a brake pad support under the condition of ensuring the brake pad dismounting efficiency.
The embodiment of the invention provides a clamp mechanism, which comprises a clamp arm, a brake pad support pin, a pin hole, a first limiting piece, a second limiting piece and an anti-dropping piece, the brake pad support is connected with the clamping arm and is provided with a brake pad stop block mounting part, the brake pad support is hinged with the clamping arm through the brake pad support pin, the pin hole is matched with the brake pad support pin, the pin hole penetrates through the brake pad support and the clamp arm, the first limiting piece is fixedly arranged in the pin hole, the second limiting piece is movably arranged in the pin hole, the second limiting piece is matched with the first limiting piece, the anti-dropping piece is fixedly connected with the second limiting piece, the anti-dropping piece is arranged corresponding to the brake pad stop block mounting part, when the second limiting part is in contact with the first limiting part, the anti-disengaging part is blocked at one side of the brake pad block mounting part.
The embodiment of the invention also provides a brake caliper, which comprises a caliper mechanism and a brake pad, wherein the caliper mechanism comprises a caliper arm, a brake pad holder, a brake pad stop block, a brake pad holder pin, a pin hole, a first limiting piece, a second limiting piece and an anti-drop piece, the brake pad holder is connected with the brake pad, the brake pad holder is connected with the caliper arm, the brake pad holder is provided with a brake pad stop block mounting part, the brake pad stop block is detachably fixed on the brake pad stop block mounting part, the brake pad stop block is contacted with the brake pad, the brake pad holder is hinged with the caliper arm through the brake pad holder pin, the pin hole is matched with the brake pad holder pin, the pin hole passes through the brake pad holder and the caliper arm, the first limiting piece is fixedly arranged in the pin hole, the second limiting piece is movably arranged in the pin hole, and the second limiting piece is matched with the first limiting piece, the anti-disengaging piece is fixedly connected with the second limiting piece, the anti-disengaging piece is arranged corresponding to the brake pad stop block, and when the second limiting piece is in contact with the first limiting piece, the anti-disengaging piece is stopped at one side of the brake pad stop block.
The embodiment of the invention also provides a rail vehicle, which comprises a clamping mechanism and a brake pad, wherein the clamping mechanism is the clamping mechanism, and the brake pad is connected with the brake pad support.
One or more technical schemes provided by the invention at least have the following technical effects or advantages:
the embodiment of the invention has the advantages that the secondary anti-falling mechanism comprising the first limiting piece and the second limiting piece is arranged at the hinged part of the clamp arm and the brake pad support, the taking and placing efficiency of the brake pad stop block is not influenced under the condition that the primary anti-falling mechanism restrains the brake pad stop block, particularly, when the brake pad needs to be replaced, the anti-falling piece is only required to be driven to move to enable the anti-falling piece to avoid the brake pad stop block mounting part, so that the brake pad stop block is quickly replaced, and the secondary anti-falling of the brake pad stop block can be realized after the restraint function of the primary anti-falling mechanism fails, therefore, compared with the prior art, the embodiment of the invention does not need to carry out dismounting operation on the secondary anti-falling mechanism when the brake pad is replaced each time, thereby greatly reducing the operation difficulty and labor intensity of replacing the brake pad on site and further ensuring the dismounting efficiency of the brake pad, meanwhile, the technical problem that the limiting function of the brake pad is invalid is solved under the condition that the brake pad dismounting efficiency is guaranteed, and the phenomenon that the brake pad falls off from the brake pad support is avoided better under the condition that the brake pad dismounting efficiency is guaranteed.
Drawings
FIG. 1 is a schematic view of a prior art clamping mechanism;
FIG. 2 is a perspective view of FIG. 1;
in the above figures: 1', brake lining support pins; 2', a brake pad support; 3', clamp arms; 4', a brake pad stop block; 5', a U-shaped spring pin;
FIG. 3 is a schematic structural view of a clamping mechanism according to an embodiment of the present invention;
FIG. 4 is a partial enlarged view of portion A of FIG. 3;
FIG. 5 is a partial view of the perspective view of FIG. 3;
FIG. 6 is a schematic view showing the connection between the anti-slip member and the slide bar of FIG. 3;
FIG. 7 is a perspective view of the stop collar of FIG. 3;
FIG. 8 is a schematic structural diagram of the clamping mechanism shown in FIG. 3 when the second limiting member is away from the first limiting member to an extreme position;
fig. 9 is a partial enlarged view of portion B of fig. 8;
FIG. 10 is a partial view of the perspective view of FIG. 7;
in the above figures: 100. a clamp arm; 200. a brake pad support; 300. a brake pad stop; 400. a brake lining backing pin; 500. a first limit piece; 600. a second limiting member; 610. a stop shaft sleeve; 620. a slide bar; 621. a rod body; 622. a sliding shaft sleeve; 700. a drop-off prevention member; 800. an elastic support member.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it is to be noted that: (1) the terms "inner", "outer", "upper", "lower", "front", "rear", and the like, indicate orientations or positional relationships based on positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; (2) when an element is referred to as being "fixed to" or "supported from" another element, it can be directly on the other element or intervening elements may also be present; (3) when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; (4) the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In order to solve the technical problems in the technology, the technical scheme in the embodiment of the invention has the following general idea:
in order to avoid the failure of the limiting function of the brake pad under the condition of ensuring the brake pad assembling and disassembling efficiency, the embodiment of the invention provides a clamp mechanism, which comprises a brake clamp of the clamp mechanism and a railway vehicle applying the brake clamp, wherein the clamp mechanism is provided with a first limiting piece, a second limiting piece and an anti-disengaging piece at the hinged position of a clamp arm and a brake pad support, the anti-disengaging piece is correspondingly arranged corresponding to a brake pad block mounting part, the anti-disengaging piece can move under the guidance of the second limiting piece, the movement of the anti-disengaging piece is limited by the first limiting piece, when the second limiting piece is contacted with the first limiting piece, the anti-disengaging piece is blocked at one side of the brake pad block mounting part, therefore, when the brake pad block fixedly arranged at the brake pad block mounting part is in a way, after the primary anti-disengaging mechanism (such as comprising a U-shaped spring pin) fails, the brake pad block is blocked by the anti-disengaging piece, namely receives the secondary action of the anti, when the brake lining needs to be replaced, the anti-disengaging part only needs to be driven to move, so that the anti-disengaging part avoids the brake lining stop block installation part, the brake lining stop block is replaced quickly, and the brake lining is replaced quickly.
Based on the above, compared with the prior art, the embodiment provided by the invention has the advantages that the secondary anti-falling mechanism is not required to be disassembled and assembled when the brake pad is replaced each time, so that the operation difficulty and labor intensity of replacing the brake pad on site are greatly reduced, the disassembling and assembling efficiency of the brake pad is further ensured, meanwhile, the failure of the limiting function of the brake pad is better avoided, namely, the technical problem of how to avoid the failure of the limiting function of the brake pad under the condition of ensuring the disassembling and assembling efficiency of the brake pad is solved, and the phenomenon that the brake pad falls off from the brake pad support is better avoided under the condition of ensuring the disassembling and assembling efficiency of the brake pad.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Referring to fig. 3 to 10, in order to solve the technical problem of how to avoid the limit function of the brake pad from failing while ensuring the brake pad mounting and dismounting efficiency, an embodiment of the present invention provides a railway vehicle, which includes a brake caliper, the brake caliper includes a caliper mechanism and a brake pad, the caliper mechanism includes a caliper arm 100, a brake pad holder 200, a brake pad stopper 300, a brake pad holder pin 400, a pin hole, a first limiting member 500, a second limiting member 600, and an anti-drop member 700, wherein:
the clamp arm 100 is used for applying a braking force, the braking force is transmitted to the brake pad holder 200 through the brake pad holder pin 400, and then the brake pad is pressed on the brake disc by the brake pad holder 200, because the clamp arm is a known technology of a person skilled in the art, and the structure of the clamp arm 100 is not improved in the embodiment of the present invention, the structure of the clamp arm 100 and the connection relationship therebetween are not described again in the embodiment of the present invention;
the brake pad holder 200 is connected to the brake pad to drive the brake pad to press the brake disc, the brake pad holder 200 is connected to the caliper arm 100 to move under the driving of the caliper arm 100, the brake pad holder 200 has a brake pad stopper mounting portion, as known to those skilled in the art, the brake pad stopper mounting portion is used to mount the brake pad stopper 300, in other words, a brake pad stopper mounting portion is inevitably required to detachably mount the brake pad stopper 300 on the brake pad holder 200, since the brake pad holder 200 is a known technology of those skilled in the art, and the structure of the brake pad holder 200 is not improved in the embodiments of the present invention, the structure of the brake pad holder 200 and the connection relationship therebetween are not described herein again;
the brake pad stop 300 is detachably fixed to the brake pad stop mounting portion, for example, the brake pad stop 300 is sleeved in a square groove (see description of the related art) of the brake pad stop mounting portion, and is fixed to the brake pad stop mounting portion through a U-shaped spring pin, so that the brake pad stop 300 is disassembled and assembled by disassembling and assembling the U-shaped spring pin, the brake pad stop 300 contacts with the brake pad to restrain movement of the brake pad, so that the brake pad can be stably arranged on the brake pad holder 200, and since the structure of the brake pad stop 300 and the connection relationship between the brake pad stop mounting portion and the brake pad stop mounting portion are not improved in the embodiment of the present invention, the structure of the brake pad stop 300 and the connection relationship between the brake pad stop mounting portion and the brake pad stop mounting portion are not described herein again;
the brake pad holder pin 400 is used for hinging the brake pad holder 200 and the clamp arm 100, that is, the brake pad holder 200 and the clamp arm 100 are hinged through the brake pad holder pin 400, the hinged part naturally has a pin hole which is matched with the brake pad holder pin 400, and the pin hole passes through the brake pad holder 200 and the clamp arm 100, that is, the pin hole is formed by the brake pad holder 200 and the clamp arm 100 together, it should be noted that the pin hole can pass through the brake pad holder 200 and the clamp arm 100, but the pin hole is not necessarily required to pass through the brake pad holder 200 and the clamp arm 100; specifically, as shown in fig. 3 and 4, the blade holder pin 400 has a supporting recess hole opened at the bottom of the blade holder pin 400 and facing downward to provide a space for movement of a second stopper 600 mentioned below and to provide guidance for movement of the second stopper 600; of course, in other embodiments, the brake pad holder pin may be divided into two sections, one section of the brake pad holder pin is used to ensure the hinge connection between the brake pad holder 200 and the clamp arm 100, and a concave hole capable of providing a motion space and guiding is formed at the lower part of the pin hole, and the other section of the brake pad holder pin is matched with the concave hole to play a role of the second limiting member 600;
the first limiting member 500 is fixedly disposed in the pin hole (including but not limited to the situation inside the pin hole), and the first limiting member 500 is used for limiting the movement of the second limiting member 600, so as to limit the movement of the anti-drop member 700, so that the anti-drop member 700 can correspond to the brake pad stopper 300, and the anti-drop member 700 is prevented from being disengaged; specifically, as shown in fig. 3 and 4, the first limiting member 500 is a lock nut, the lock nut is fixedly connected with the brake pad supporting pin 400 through a thread, and the top of the lock nut is used for contacting with the second limiting member 600 to stop the second limiting member 600 from continuously moving downward;
the second limiting member 600 is movably disposed in the pin hole, and the second limiting member 600 is matched with the first limiting member 500 to ensure that the anti-drop member 700 can correspond to the brake pad stop 300 or the brake pad stop mounting portion; specifically, as shown in fig. 3 to 7, the second position limiter 600 includes a stopping shaft sleeve 610 and a sliding rod 620, the stopping shaft sleeve 610 is connected to the supporting recess hole of the brake pad supporting pin 400 in a matching manner, for example, the stopping shaft sleeve 610 is connected to the supporting recess hole of the brake pad supporting pin 400 in a sliding manner, so that the stopping shaft sleeve 610 moves back and forth inside the supporting recess hole and along the extending direction of the supporting recess hole, the stopping shaft sleeve 610 is connected to the first position limiter, for example, the bottom of the stopping shaft sleeve 610 is used for contacting with a lock nut, so that the movement of the stopping shaft sleeve is restricted by the lock nut, as shown in fig. 7, a plurality of notches are formed on the outer circumferential surface of the stopping shaft sleeve 610 for balancing air pressure during the sliding of the stopping shaft sleeve 610, so that the anti-release member 700 moves smoothly under the driving of the second position limiter 600, the notches penetrate through the stopping shaft sleeve 610 along the axial direction of the stopping shaft sleeve 610, the sliding rod 620 is movably disposed in the supporting concave hole, one end of the sliding rod 620 is fixedly (e.g., in an interference fit, connected by a thread, welded, or integrally formed) sleeved with the stopping sleeve 610 to reciprocate along with the stopping sleeve 610 along the supporting concave hole, the other end of the sliding rod 620 is fixedly connected with the anti-slip member 700 to drive the anti-slip member 700 to synchronously reciprocate, as further shown in fig. 3 and 4, the sliding rod 620 includes a rod body 621 and a sliding sleeve 622, the rod body 621 is of an inverted T shape, the head of the rod body 621 is located below the pin hole, one end of the rod body 621 is fixedly sleeved with the stopping sleeve 610, the other end of the rod body 621 is integrally formed with the head of the rod body, the sliding sleeve 622 is fixedly sleeved on the outer portion of the rod body 621 to prevent the rod body 621 from being damaged due to long-term movement, and only the sliding sleeve 622 needs to be replaced, the sliding shaft sleeve 622 is connected with the supporting concave hole in a sliding fit mode so as to ensure that the sliding rod 620 can do stable reciprocating motion, the bottom of the sliding shaft sleeve 622 is contacted with the head of the rod body 621, the top of the sliding shaft sleeve 622 is contacted with the bottom of the stopping shaft sleeve 610, the sliding shaft sleeve 622 is preferably made of non-metal materials, and therefore the sliding shaft sleeve 622 has good self-lubricating performance and corrosion resistance, and in addition, an O-shaped sealing ring is arranged on the locking nut to seal the sliding shaft sleeve 622;
the anti-slip member 700 is fixedly connected to the second limiting member 600 so as to reciprocate along with the second limiting member 600, and the anti-slip member 700 is disposed corresponding to the brake pad stopper 300 or the brake pad stopper mounting portion, wherein when the second limiting member 600 contacts the first limiting member 500, the anti-slip member 700 is stopped at one side of the brake pad stopper 300 or the brake pad stopper mounting portion so as to be able to restrain the movement of the brake pad stopper 300, that is, when the primary anti-slip mechanism (including a U-shaped spring pin, for example) fails to restrain the brake pad stopper 300, the anti-slip member 700 serves as a secondary anti-slip mechanism of the brake pad stopper 300 and is able to restrain the brake pad stopper 300 and prevent the brake pad stopper 300 from being separated from the brake pad holder 200; specifically, as shown in fig. 3 to 6, the anti-falling-off member 700 is a limiting blocking ring, the limiting blocking ring is disposed corresponding to the brake pad stopper 300 or the brake pad mounting portion, the limiting blocking ring is sleeved outside the head of the rod body 621, and the limiting blocking ring is connected with the head of the rod body 621 in an interference fit manner so as to be fixed on the rod body 621 and thus can move synchronously with the rod body 621, as shown in fig. 7, the head of the rod body 621 is provided with a step, a counter bore is disposed in the middle of the limiting blocking ring, the bottom surface of the counter bore of the limiting blocking ring is pressed against the step surface of the head of the rod body 621, and the limiting; of course, in other embodiments, the stopper ring may be fixed to the head of the rod 621 by a screw fastening or an integral molding.
Based on the above, the embodiments described in the present invention have at least the following technical effects or advantages:
in the embodiment of the invention, the secondary anti-falling mechanism comprising the first limiting piece 500 and the second limiting piece 600-level anti-falling piece 700 is arranged at the hinged part of the clamp arm 100 and the brake pad holder 200, so that the taking and placing efficiency of the brake pad stopper 300 is not influenced under the condition that the primary anti-falling mechanism restrains the brake pad stopper 300, in particular, when the brake pad needs to be replaced, the anti-falling piece 700 only needs to be driven to move to enable the anti-falling piece 700 to avoid the brake pad stopper mounting part, so that the brake pad stopper 300 is rapidly replaced, and the secondary anti-falling of the brake pad stopper 300 can be realized after the restraint function of the primary anti-falling mechanism fails, therefore, compared with the prior art, the secondary anti-falling mechanism does not need to be disassembled and assembled when the brake pad is replaced each time, so that the operation difficulty and labor intensity of field brake pad replacement are greatly reduced, and then guaranteed the dismouting efficiency of brake lining, avoided the limit function inefficacy to the brake lining simultaneously better, solved promptly and how under the circumstances of guaranteeing brake lining dismouting efficiency, avoided the technical problem that the limit function of brake lining became invalid, and then more and then under the circumstances of having guaranteed brake lining dismouting efficiency, better avoided the brake lining to hold in the palm the phenomenon emergence that drops from the brake lining.
In addition, the secondary anti-drop mechanism is installed in the pin hole of the prior art, so that the structure of the prior art is slightly influenced, and the occupied space is small; in addition, the secondary anti-falling mechanism provided by the invention can be compatible with products of different models, and the existing products can be upgraded and reformed only by replacing the brake pad supporting pin 400.
In order to improve the reliability of the brake pad stopper 300 in releasing and further improve the efficiency of replacing the brake pad, further referring to fig. 3 and 4, the clamping mechanism further includes an elastic supporting member 800, the elastic supporting member 800 is located in the pin hole, the elastic supporting member 800 is connected between the brake pad supporting pin 400 and the second limiting member 600, so that when in use, under the action of the elastic force of the elastic supporting member 800 itself, the second limiting member 600 is stably contacted with the first limiting member 500, thereby improving the position stability of the release preventing member 700, and further better ensuring that when the function of the release preventing mechanism for limiting the brake pad stopper 300 is failed once, the release preventing member 700 can further exert the limiting function on the brake pad stopper 300, and simultaneously, when the brake pad needs to be replaced, the release preventing member 700 is pressed, so that the release preventing member 700 avoids the brake pad stopper 300 (of course, can also avoid the brake pad stopper mounting portion), after the brake pad block 300 is put back, the anti-drop piece 700 is released, and the anti-drop piece 700 can return, so that the embodiment of the invention improves the reliability of anti-drop of the brake pad block 300 and further improves the efficiency of brake pad replacement;
specifically, as shown in fig. 3 and 4, the elastic support member 800 is preferably a spring located inside the supporting recess of the blade holder pin 400, and in this case, the blade holder pin 400 has a stopper at the bottom of the supporting recess (i.e., the upper portion shown in fig. 3 and 4), and the spring is connected between the stopper and the stopper boss 610.
In order to more clearly explain the present invention, the following embodiments shown in fig. 3 to 10 are used as examples to specifically explain the secondary anti-slip function and the brake pad replacement operation of the present invention:
in the state shown in fig. 3 to 5, the U-shaped spring pin is in a locked state, the brake pad holder stopper 300 is located in the square groove of the brake pad holder 2, the anti-slip member 700 is located at one side of the brake pad stopper 300 and the brake pad stopper mounting portion and can limit the brake pad stopper 300, and the anti-slip member 700 is supported by the elastic force of the elastic support member 800 to maintain stability, when the U-shaped spring pin fails, the brake pad stopper 300 cannot be opened due to the anti-slip member 700, thereby ensuring that the brake pad cannot slip;
when the brake pad needs to be replaced, the anti-falling piece 700 is manually pushed upwards and the elastic support piece 800 is compressed until the lower plane (the same direction as the lower plane shown in fig. 8 and 9) of the anti-falling piece 700 is higher than the upper plane of the brake pad block 300 in the state shown in fig. 8 to 10, a U-shaped spring pin is pried to eject the brake pad block 300 from the square groove of the brake pad holder 200, and after the brake pad block 300 is ejected, the anti-falling piece 700 falls on the upper plane of the brake pad block 300 and is in a self-stable state, and an operator can replace the brake pad;
after a new brake pad is mounted in place, the U-shaped spring pin is pressed down to lock the brake pad stopper 300 into the square groove of the brake pad holder 200 again, and at this time, the anti-dropping member 700 automatically drops down and returns to the limit state shown in fig. 3 to 5 again.
In the whole process, other parts are not required to be additionally disassembled and installed except the brake pad, and the brake pad is automatically restored to the limiting state after the brake pad is replaced.
Claims (10)
1. A clamping mechanism, the clamping mechanism comprising:
a clamp arm;
the brake lining holds in the palm, the brake lining holds in the palm with the clamp arm is connected, the brake lining holds in the palm and has:
a brake pad stopper mounting portion;
the brake pad support pin is hinged with the clamping arm through the brake pad support pin;
the pin hole is matched with the brake pad support pin and penetrates through the brake pad support and the clamp arm;
it is characterized by also comprising:
the first limiting piece is fixedly arranged in the pin hole;
the second limiting piece is movably arranged in the pin hole and matched with the first limiting piece;
the anti-dropping piece is fixedly connected with the second limiting piece and is arranged corresponding to the brake pad stop block mounting part;
when the second limiting part is in contact with the first limiting part, the anti-disengaging part is blocked at one side of the brake pad block mounting part.
2. The clamping mechanism as claimed in claim 1, wherein said brake pad holder pin has:
the blocking part is positioned inside the pin hole;
the clamping mechanism further comprises:
the elastic supporting piece is located in the pin hole and connected between the blocking portion and the second limiting piece.
3. The clamping mechanism as claimed in claim 1, wherein said first stop member is fixedly connected to said brake pad pin, said brake pad pin having:
and the supporting concave hole is matched and connected with the second limiting part.
4. The clamping mechanism as recited in claim 3, further comprising:
and the elastic support piece is positioned in the supporting concave hole, and the elastic support piece is connected between the brake lining supporting pin and the second limiting piece.
5. The clamping mechanism as claimed in claim 4, wherein the anti-release member is a limit stop ring, the limit stop ring is disposed corresponding to the brake pad stop mounting portion, and the second limiting member includes:
the brake pad supporting pin is connected with the support concave hole in a matched mode, the elastic supporting piece is connected between the brake pad supporting pin and the brake pad supporting pin; and
the slide bar, the slide bar portable set up in support the shrinkage pool, the one end of slide bar with the locking axle sleeve is fixed to be cup jointed, the other end of slide bar with spacing fender ring fixed connection.
6. A brake caliper, said brake caliper comprising a caliper mechanism and a brake pad, said caliper mechanism comprising:
a clamp arm;
the brake lining holds in the palm, the brake lining hold in the palm with the brake lining is connected, the brake lining hold in the palm with the tong arm is connected, the brake lining holds in the palm and has:
a brake pad stopper mounting portion;
the brake pad stop block is detachably fixed on the brake pad stop block mounting part and is in contact with the brake pad;
the brake pad support pin is hinged with the clamping arm through the brake pad support pin;
the pin hole is matched with the brake pad support pin and penetrates through the brake pad support and the clamp arm;
the first limiting piece is fixedly arranged in the pin hole;
the second limiting piece is movably arranged in the pin hole and matched with the first limiting piece;
the anti-dropping piece is fixedly connected with the second limiting piece and is arranged corresponding to the brake pad stop block;
when the second limiting part is in contact with the first limiting part, the anti-disengaging part is blocked at one side of the brake pad block.
7. The brake caliper of claim 6 wherein the pad holder pin has:
the blocking part is positioned inside the pin hole;
the clamping mechanism further comprises:
the elastic supporting piece is located in the pin hole and connected between the blocking portion and the second limiting piece.
8. The brake caliper of claim 6 wherein said first retainer is fixedly connected to said pad holder pin, said pad holder pin having:
and the supporting concave hole is matched and connected with the second limiting part.
9. The brake caliper of claim 8 wherein the caliper mechanism further comprises:
and the elastic support piece is positioned in the supporting concave hole, and the elastic support piece is connected between the brake lining supporting pin and the second limiting piece.
10. A rail vehicle, characterized in that it comprises:
a clamping mechanism as claimed in any one of claims 1 to 5; and
the brake pad is connected with the brake pad support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910602239.9A CN110307281B (en) | 2019-07-05 | 2019-07-05 | Clamp mechanism, brake clamp and rail vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602239.9A CN110307281B (en) | 2019-07-05 | 2019-07-05 | Clamp mechanism, brake clamp and rail vehicle |
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| CN110307281A CN110307281A (en) | 2019-10-08 |
| CN110307281B true CN110307281B (en) | 2020-08-14 |
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| CN201910602239.9A Active CN110307281B (en) | 2019-07-05 | 2019-07-05 | Clamp mechanism, brake clamp and rail vehicle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110966328B (en) * | 2020-01-02 | 2021-03-30 | 中车青岛四方车辆研究所有限公司 | Real-time state monitoring device of brake clamp unit, brake clamp unit and method |
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| GB2460826A (en) * | 2008-06-09 | 2009-12-16 | Cheng wei su | Adjustable torque socket |
| CN106499752A (en) * | 2016-12-26 | 2017-03-15 | 常州中车铁马科技实业有限公司 | Vehicle brake rigging |
| CN206694479U (en) * | 2017-05-16 | 2017-12-01 | 中车青岛四方车辆研究所有限公司 | Brake plate support component and gripping mechanism and disc brake apparatus containing the brake plate support component |
| CN206797357U (en) * | 2017-06-16 | 2017-12-26 | 建德市五星车业有限公司 | A kind of brake lever |
| CN206816715U (en) * | 2017-06-06 | 2017-12-29 | 克诺尔车辆设备(苏州)有限公司 | Brake plate support and brake apparatus and vehicle with the brake plate support |
| CN207777469U (en) * | 2018-01-17 | 2018-08-28 | 中国铁道科学研究院 | Brake plate support protective device |
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| JPH1047395A (en) * | 1996-08-05 | 1998-02-17 | Akebono Brake Ind Co Ltd | Disk brake device |
| GB2460826A (en) * | 2008-06-09 | 2009-12-16 | Cheng wei su | Adjustable torque socket |
| CN106499752A (en) * | 2016-12-26 | 2017-03-15 | 常州中车铁马科技实业有限公司 | Vehicle brake rigging |
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| CN207777469U (en) * | 2018-01-17 | 2018-08-28 | 中国铁道科学研究院 | Brake plate support protective device |
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| CN110307281A (en) | 2019-10-08 |
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