CN112776757A - Grinding sub assembly and method, wheel tread cleaning device and rail vehicle - Google Patents
Grinding sub assembly and method, wheel tread cleaning device and rail vehicle Download PDFInfo
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- CN112776757A CN112776757A CN201911066942.9A CN201911066942A CN112776757A CN 112776757 A CN112776757 A CN 112776757A CN 201911066942 A CN201911066942 A CN 201911066942A CN 112776757 A CN112776757 A CN 112776757A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/62—Other vehicle fittings for cleaning
- B60S1/66—Other vehicle fittings for cleaning for cleaning vehicle exterior
- B60S1/68—Other vehicle fittings for cleaning for cleaning vehicle exterior for freeing wheels or tyres from foreign matter, e.g. wheel scrapers
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- Machines For Laying And Maintaining Railways (AREA)
Abstract
The application provides a grinding sub assembly and method, a wheel tread cleaning device and a rail vehicle. The grinder assembly includes: a mounting pin including a base portion and a pin portion extending and protruding from the base portion, the pin portion having a dimension smaller than that of the base portion in an extending direction thereof; wherein the pin portion is adapted to pass from a first side to a second side of the mounting cavity of the brake head and the base portion is adapted to abut against the first side of the mounting cavity of the brake head; a mounting pin receiving part having a first mounting hole into which the receiving pin part is inserted; the mounting pin receiving part is used for receiving the pin part at the second side of the mounting cavity of the brake head; and a mounting pin locking member which detachably locks the pin portion of the mounting pin with the mounting pin receiving portion and restricts movement of the pin portion in the extending direction thereof. This application has realized fast loading and unloading, high locking reliability, high structural strength through simple structure, can effectively prevent the wearing and tearing that the vehicle vibration impact caused to grinding sub-loading and unloading subassembly.
Description
Technical Field
The application relates to the technical field of grinding element assembling and disassembling of railway vehicles, in particular to a grinding element assembling and disassembling assembly, a grinding element assembling and disassembling method, a wheel tread cleaning device and a railway vehicle.
Background
As one of the standard configurations of a railway car disc brake system, a wheel tread surface cleaning device can effectively treat wheel tread surfaces when the wheel tread surfaces are damaged, out of round, low in adhesion and the like. Specifically, the grinder in the wheel tread cleaning device has the functions of tread cleaning, wheel rail thickening, wheel modification and the like, so that the phenomena of wheel slip and idling and the like are effectively prevented, the braking performance and the comfort performance of a train can be effectively improved, and the grinding device is verified in the actual use process.
Some rail vehicles place stringent requirements on the reliability of the grinder installation in view of the work performed by the grinder. At present, as one of the common grinding unit mounting structures, the mounting hook is locked in a rectangular cavity of a brake head by a torsion spring support leg, and the mounting position of the grinding unit is restrained by a mounting hook extending part. This arrangement has the advantage of facilitating efficient mounting of the grinder to the brake head, but with a low degree of disassembly. In addition, the strength of the mounting structure is difficult to meet the working requirements of the grinder, and the ability to withstand the dangerous vibration and accidental impact of the vehicle is poor.
Disclosure of Invention
In view of the above, the present application provides an abrasive sub-loading and unloading assembly, an loading and unloading method, a tread surface cleaning apparatus, and a rail vehicle that effectively solve, or at least alleviate, one or more of the above-identified problems and other problems in the prior art.
According to one aspect of the present application, there is provided an abrasive sub-handling assembly comprising: a mounting pin including a base portion and a pin portion extending and protruding from the base portion, the pin portion having a dimension smaller than a dimension of the base portion in an extending direction thereof; wherein the pin portion is adapted to pass from a first side to a second side of the mounting cavity of the brake head and the base portion is adapted to abut against the first side of the mounting cavity of the brake head; a mounting pin receiving part having a first mounting hole into which the pin part is inserted; the mounting pin receiving portion is used for receiving a pin portion at a second side of a mounting cavity of the brake head; and a mounting pin locking member that detachably locks the pin portion of the mounting pin with the mounting pin receiving portion and restricts movement of the pin portion in the extending direction thereof.
Optionally, the mounting pin receiving portion comprises: the brake head comprises a brake head, a grinding piece, a limiting piece and a stop piece, wherein the brake head is used for fixing the brake head; wherein the first mounting hole has a first section extending through the stop and a second section extending at least partially into the stop; and the mounting pin locking piece detachably locks the pin part of the mounting pin and the stop piece and limits the pin part and the limit piece to move in the extending direction of the pin part and the stop piece.
Optionally, the side edge of the pin part is provided with a first notch and a second notch which are arranged in a step shape in the extending direction of the pin part, and the size of the first notch is larger than that of the second notch in the extending direction of the pin part; wherein the first notch mates with a first section of the first mounting hole and the second notch mates with a second section of the first mounting hole.
Optionally, the mounting pin locking piece comprises a positioning pin, and the mounting pin receiving portion is provided with a first positioning hole communicated with the first mounting hole; the pin part is provided with a second positioning hole; the extending directions of the first positioning hole and the second positioning hole and the extending direction of the pin part are arranged in a staggered manner; the positioning pin is inserted through the first positioning hole and the second positioning hole to lock the mounting pin receiving part and the pin part.
Optionally, the second positioning hole is a closed hole or a notch provided along a side edge of the pin portion.
Optionally, the positioning pin is a split pin having a bent portion at least at one end, and after the split pin is inserted through the first positioning hole and the second positioning hole, the bent portion is bent to limit movement of the split pin in the insertion direction.
According to another aspect of the present application, there is also provided a wheel tread sweeping device comprising: a brake head, a grinder, and a grinder assembly as previously described; wherein the brake head has an extended projecting mounting lug having a mounting cavity; the grinding piece is sleeved on the brake head from one side of the brake head with the mounting joint and exposes out of the mounting cavity; and the grinding sub assembling and disassembling component limits the grinding sub to move towards the direction departing from the brake head through the mounting pin arranged on the two sides of the mounting cavity and the mounting pin receiving part, and detachably locks the pin part of the mounting pin and the mounting pin receiving part through the mounting pin locking part.
Optionally, comprising: the base portion of the mounting pin and the mounting pin receiving portion of the grinding sub assembly are positioned against the grinding sub and limit movement of the grinding sub in a direction away from the brake head.
According to yet another aspect of the present application, there is also provided a rail vehicle, comprising: a grinder assembly as described above, or a wheel tread cleaning device as described above.
According to still another aspect of the present application, there is also provided a method of assembling and disassembling a grinder to a brake head, wherein the brake head has a mounting tab extending therefrom, and the mounting tab has a mounting cavity; characterized in that the method comprises: the installation step: sleeving the grinding piece on the brake head from one side of the brake head with the mounting joint, and exposing the mounting cavity; inserting the pin portion of the mounting pin of the grinding sub-handling assembly as described above through the mounting cavity from the first side to the second side until the base portion of the mounting pin abuts the first side of the mounting cavity; receiving a pin portion protruding from a second side of the mounting cavity using a first mounting hole of the mounting pin receiving part; locking a pin portion of the mounting pin with the mounting pin receiving portion using the mounting pin locking member; and/or a disassembly step: unlocking the mounting pin lock of the polishing sub-assembly and disassembly assembly and removing the mounting pin lock from the mounting pin receiving portion and the pin portion of the mounting pin; taking the pin part out to a first mounting hole and the mounting cavity which are separated from the mounting pin receiving part; and taking the grinder sleeved on the brake head out of the side, provided with the mounting joint, of the brake head.
The principles, features, characteristics, advantages, etc. of various aspects according to the present application will be clearly understood from the following detailed description taken in conjunction with the accompanying drawings. For example, compared with the prior art, the technical scheme of the application realizes quick assembly and disassembly through a simple structure, has high locking reliability and higher structural strength, can effectively prevent the abrasion of the grinding sub assembly and disassembly assembly of the wheel tread cleaning device caused by abnormal impact of parts caused by harmful vibration of a vehicle, ensures the safe and reliable operation of the wheel tread cleaning device of the rail transit vehicle, and efficiently improves the adhesion problem of the wheel rail.
Drawings
FIG. 1 is a schematic view of one embodiment of an assembled grinder assembly handler, grinder and brake head of the present application.
FIG. 2 is a schematic view of one embodiment of a brake head of the grinding sub-handling assembly of the present application.
FIG. 3 is a schematic view of one embodiment of a mounting pin of the present abrasive sub-handling assembly.
FIG. 4 is a schematic view of one embodiment of a stop for a mounting pin receiving portion of the polishing subassembly of the present application.
FIG. 5 is a schematic view of one embodiment of a stop for a mounting pin receiving portion of the present grinding sub-assembly.
Detailed Description
First, it should be noted that the composition, operation, features and advantages of the grinding sub-assembly, method of loading and unloading, wheel tread cleaning apparatus and rail vehicle according to the present invention are described below by way of example, but it should be understood that all the descriptions are given by way of illustration only and thus should not be construed as limiting the invention in any way.
Furthermore, to any single feature described or implicit in an embodiment or shown or implicit in the drawings, the invention still allows any combination or permutation to continue between the features (or their equivalents) without any technical impediment, thus achieving more other embodiments of the invention that may not be directly mentioned herein.
The general structure of an embodiment of an assembled grinding unit assembly, grinding unit and brake head according to the present application is shown only schematically in fig. 1, and some of the components thereof, such as brake head, mounting pin, limiting member, stopper and the like, are shown in fig. 2 to 5, respectively, and the technical solution of the present invention will be described in detail with reference to the above drawings.
As shown in FIG. 1, the grinding sub-handling assembly 100 has completed locking the grinding sub 300 that is mounted on the brake head 200. The grinding sub-handling assembly 100 includes a mounting pin 110, a mounting pin receiving portion, and a mounting pin lock.
Here, the mounting pin 110 includes a base portion 111 and a pin portion 112 extending from the base portion 111 in the negative direction of the Y axis in the drawing. To ensure that the mounting pin is inserted through the mounting cavity 220 of the brake head 200 and stays at a predetermined position, the pin portion 112 may be sized to be smaller in its direction of extension (i.e., the Y-axis direction) than the base portion 111. Of course, the dimensions of the pin portion 112 should also be no greater than the dimensions of the mounting cavity 220 in the negative Y-axis direction, and the dimensions of the base portion 111 should be correspondingly greater than the dimensions of the mounting cavity 220 in the negative Y-axis direction. It should be understood that "dimension" as referred to herein means the relationship of the cross-sectional area and the maximum length in cross-section between the several parts in interposed or abutting relationship with each other. That is, when the size of the pin portion 112 is smaller than the size of the base portion 111 in the extending direction thereof, it should be smaller than the base portion 111 in both the sectional area and the maximum length in the section, and when the size of the pin portion 112 is not larger than the size of the mounting cavity 220 in the negative direction of the Y axis, it should be not larger than the mounting cavity 220 in both the sectional area and the maximum length in the section. Are not described individually herein. Thereby, the pin portion 112 of the mounting pin 110 is allowed to pass from a first side (Y-axis positive side in the drawing) to a second side (Y-axis negative side in the drawing) of the mounting cavity 220 of the brake head 200, while the base portion 111 is allowed to abut against the first side (Y-axis positive side in the drawing) of the mounting cavity 220 of the brake head 200.
Further, the stopper 120 and the stopper 130 shown in fig. 1 collectively function as an installation pin receiving portion having a first installation hole into which the receiving pin portion 112 is inserted. The mounting pin receiving portion is shown for receiving the pin portion 112 into the first mounting hole on a second side (the negative Y-axis side in the figure) of the mounting cavity 220 of the brake head 200 and for releasably locking the pin portion 112 of the mounting pin 110 with the mounting pin receiving portion via a mounting pin locking member, shown as cotter pin 140, and for restricting movement of the pin portion 112 in the direction of extension thereof (the negative Y-axis side in the figure).
With this arrangement, the foregoing embodiments of the present application provide a grinder assembly/disassembly assembly that can be efficiently installed, has high structural strength, and can be efficiently disassembled and replaced after the grinder is worn, so as to ensure that a rail transit vehicle tread cleaning device having a grinder in a normal state can safely and reliably operate, and to efficiently improve the problem of wheel rail adhesion.
Referring again to fig. 1, 4 and 5, as an example of a specific structural form of the mounting pin receiving portion, it may include a limiting member 120 and a stopper member 130. The split structure has the advantage of simpler processing, and still can realize the execution of its function separately simultaneously. Specifically, the first mounting hole of the mounting pin receiver has a first section 121 that extends through the stop 120 such that the pin portion 112 when assembled extends through the stop 120, and the stop 120 may abut or otherwise limit movement of the grinder 300 mounted on the brake head 200 in a direction away from the brake head 200 (positive X-axis direction in the figures) after assembly is complete. Furthermore, the first mounting hole of the mounting pin receiving portion has a second section 131 extending at least partially into the stopper 130, such that the pin portion 112 when assembled is at least partially inserted into the stopper 130, and then locking of the stopper 130 with the pin portion 112 is achieved via the mounting pin locking member, thereby limiting movement of the pin portion 112 and the limiting member 120 between the stopper 130 and the base portion 111 of the mounting pin 110 in both Y-axis directions. This arrangement achieves a highly reliable lock against undesired displacement of the grinder due to impact or other causes.
It should be understood that the foregoing examples are illustrative only and not limiting, and that modifications may be made as desired without departing from the scope of the inventive concept. For example, as shown in fig. 1, the second section 131 of the first mounting hole may also be a through hole extending completely through the stopper 130, and the pin portion 112 of the mounting pin 110 may also extend therethrough and perform its positioning and locking function, and thus the present application is contemplated to be within the scope thereof.
Turning to fig. 1 and 3, examples of specific structural forms of the mounting pin 110 and the brake head 200 are also shown. The side edge of the pin portion 112 of the mounting pin 110 may be provided with a first notch 112a and a second notch 112b arranged in a step shape in the extending direction thereof, wherein the size of the first notch 112a is larger than that of the second notch 112b in the extending direction of the pin portion 112, so as to realize the matching with different parts respectively. Specifically, the first notch 112a can be matched with the first section 121 of the first mounting hole, that is, the positioning of the limiting member 120 on the pin portion 112 is realized; and the second notch 112b cooperates with the second section 131 of the first mounting hole, i.e., to effect the positioning of the stopper 130 on the pin portion 112. This arrangement greatly facilitates accurate positioning of these components on the mounting pin to better perform their function. For example, the locating of the stop 120 on the pin portion 112 allows it to accurately abut and limit movement of the grinder in a direction away from the brake head (positive X-axis in the figures); for another example, the positioning of the stop 130 can avoid unnecessary interference or friction with the stop 120 on the pin portion 112, improve part assembly, and increase part life.
Further, the mounting pin locking member may be a positioning pin; and the mounting pin receiving portion or the stopper 130 as a part of the mounting pin receiving portion may be provided with a first positioning hole 132 communicating with the first mounting hole or the second section 131 of the first mounting hole; and at the same time, a second positioning hole 112c is provided on the pin portion 112. The extending directions of the first positioning hole 132 and the second positioning hole 112c are staggered with the extending direction of the pin portion 112. When the mounting is completed, the mounting pin receiving portion or the stopper 130 and the pin portion 112 as a part of the mounting pin receiving portion can be locked by inserting the positioning pin through the first positioning hole 132 and the second positioning hole 112c, thereby better achieving a simple mounting and dismounting process and high reliability of the mounting and dismounting assembly.
More specifically, the second positioning hole 112c mentioned in the foregoing embodiment may be in the form of a closed hole not shown in the drawings, or may be a notch as shown in fig. 3 or provided along the side edge of the pin portion 112, as long as it can perform the fitting and locking function with the positioning pin.
On the other hand, the positioning pin may be a cotter pin 140 having a bent portion 141 at least at one end, and after the cotter pin 140 is inserted through the first positioning hole 132 and the second positioning hole 112c, the bent portion 141 is bent (e.g., to 90 °) to restrict the cotter pin 140 from moving in the insertion direction, thereby providing a structural form that can be easily attached and detached and is reliably positioned. Of course, the two ends of the positioning pin may be provided with the bending parts, or the other end of the positioning pin may be provided with the base, as long as the positioning pin can be locked and easily assembled and disassembled.
In addition, an embodiment of a tread surface cleaning device is provided herein in conjunction with fig. 1-2. The included components of the wheel tread cleaning device are shown, such as brake head 200, grinder 300, and grinder assembly 100. The polishing sub-handler assembly 100 referred to herein may be any of the polishing sub-handler assemblies described in any of the embodiments or combinations thereof. In this tread surface cleaning device, the brake head 200 has a mounting head 210 extending and protruding, and the mounting head 210 has a mounting cavity 220. For example, the illustrated mounting tab 210 may be a rectangular cavity-like structure having rectangular slots on both sides and the top, with the rectangular slots on both sides forming the mounting cavity 220 described herein. The grinder 300 is moved in the negative X-axis direction from the side of the brake head 200 having the mounting tab 210 to fit over the brake head 200 and expose the mounting cavity 220. Thereafter, the grinding sub-handling assembly 100 inserts the mounting pin 110 from the right side of the mounting cavity 220 until it passes through the left side of the mounting cavity 220 and is received in the first mounting hole by the mounting pin receiving portion disposed on the left side of the mounting cavity 220, and then locking of the mounting pin 110 with the mounting pin receiving portion is removably accomplished by the mounting pin locking member, thereby accomplishing the restriction of movement of the grinding sub 300 in a direction away from the brake head 200 (positive X-axis direction in the drawing).
With this arrangement, the foregoing embodiments of the present application provide a tread surface cleaning device having an abrasive shoe attachment/detachment assembly for efficiently attaching/detaching an abrasive shoe to/from a brake head, which enables efficient detachment and replacement of the abrasive shoe after the abrasive shoe is worn, thereby ensuring safe and reliable operation of the tread surface cleaning device for a rail transit vehicle having an abrasive shoe in a normal state and efficiently improving the problem of adhesion of the wheel and the rail.
Further, as a specific implementation of limiting the movement of the grinder 300 in a direction away from the brake head 200 (the X-axis direction in the drawing), the base portion 111 and the mounting pin receiving portion of the mounting pin 110 of the grinder assembly/disassembly assembly 100 may be disposed against the grinder 300. As shown in fig. 1, under such an arrangement, the base portion 111 of the grinding sub-assembly 100 and the position-limiting member 120 of the mounting pin receiving portion respectively abut against two protrusions of the grinding sub-back plate of the grinding sub-assembly 300 in a large area, so as to increase the effective contact area between the two protrusions, thereby effectively preventing the wear of the grinding sub-assembly of the wheel tread surface cleaning device caused by the abnormal impact of the parts caused by the harmful vibration of the vehicle, and eliminating the risk of falling off of the parts, falling off of the grinding sub-assembly and the like.
Although not shown in the drawings, the present application also provides a railway vehicle, in which any embodiment or combination of the grinding sub mounting and dismounting assembly or any embodiment or combination of the wheel tread surface cleaning device can be arranged according to application requirements, thereby having the technical effects brought by the technical scheme. It should be noted that the rail vehicles described above may include, but are not limited to, numerous types such as subway locomotives, high-speed rail locomotives, bullet trains, urban light rail trains, and the like.
The grinding sub attachment and detachment assembly, the tread surface cleaning device, and other parts of the railway vehicle provided by the present application may be designed, manufactured, and sold separately, or they may be assembled together and sold as a whole. Whether formed as a monomer before combination or as a whole after combination, are within the scope of the present application.
Furthermore, according to another aspect of the present application, there is provided a method for assembling and disassembling the grinding member 300 and the brake head 200, wherein the brake head 200 to which the method is applied should have the mounting tab 210 extended and protruded, and the mounting tab 210 should have the mounting cavity 220. Specifically, the assembling and disassembling method can comprise two parts, namely an assembling step and a disassembling step. Wherein, the installation step includes: sleeving a grinding piece 300 on the brake head 200 of the wheel tread cleaning device from one side of the brake head 200 with the mounting joint 210, and exposing the mounting cavity 220; inserting the pin portion 112 of the mounting pin 110 of the grinding sub-handling assembly 100 through the mounting cavity 220 of the brake head 200 from the first side to the second side until the base portion 111 of the mounting pin 110 abuts the first side of the mounting cavity 220; receiving the pin portion 112 protruding from the second side of the mounting cavity 220 using the first mounting hole of the mounting pin receiving portion, e.g., receiving the pin portion 112 via the first section 121 of the stop 120 and the second section 131 of the stop 130 in sequence; the pin portion 112 of the mounting pin 110 is then locked with the mounting pin receiving portion (e.g., including the stop 120 and the stop 130) using a mounting pin locking member (e.g., bending portion 141 of the bent cotter pin 140).
In addition, the disassembling step includes: unlocking the mounting pin locking member (e.g., straightening or removing the bent portion 141 of the cotter pin 140) of the polishing sub-assembly 100 and removing it from the pin portion 112 and the mounting pin receiving portion (e.g., including the limiting member 120 and the stopper 130) of the mounting pin 110; subsequently, the pin portion 112 is taken out to the first mounting hole of the leaving mounting pin receiving portion, for example, in turn, via the second section 131 of the stopper 130 and the first section 121 of the limiter 120, and then out of the mounting cavity 220 of the brake head 200; finally, the grinder 300, which is mounted on the brake head 200, is removed from the side of the brake head 200 having the mounting tab 210.
With this arrangement, the attaching and detaching method according to the above-described embodiment of the present application can efficiently attach and detach the grinder attaching and detaching assembly, and further, can efficiently detach and replace the grinder after the grinder is worn, thereby ensuring that the rail transit vehicle wheel tread cleaning device having the grinder in a normal state can safely and reliably operate, and efficiently improving the problem of wheel rail adhesion.
The present invention is directed to a grinding unit loading and unloading assembly, a loading and unloading method, a wheel tread cleaning device, and a rail vehicle, which are capable of being used in conjunction with the above-described grinding unit loading and unloading assembly, method and apparatus, and a rail vehicle, and which are not limited to the above-described embodiments. Accordingly, all equivalents are intended to be included within the scope of this application and are defined in the claims of this application.
Claims (10)
1. A grinder assembly for handling a workpiece, comprising:
a mounting pin including a base portion and a pin portion extending and protruding from the base portion, the pin portion having a dimension smaller than a dimension of the base portion in an extending direction thereof; wherein the pin portion is adapted to pass from a first side to a second side of the mounting cavity of the brake head and the base portion is adapted to abut against the first side of the mounting cavity of the brake head;
a mounting pin receiving part having a first mounting hole into which the pin part is inserted; the mounting pin receiving portion is used for receiving a pin portion at a second side of a mounting cavity of the brake head; and
a mounting pin locking member that detachably locks the pin portion of the mounting pin with the mounting pin receiving portion and restricts movement of the pin portion in the extending direction thereof.
2. The grinding sub handling assembly of claim 1, wherein the mounting pin receiving portion comprises: the brake head comprises a brake head, a grinding piece, a limiting piece and a stop piece, wherein the brake head is used for fixing the brake head; wherein the first mounting hole has a first section extending through the stop and a second section extending at least partially into the stop; and the mounting pin locking piece detachably locks the pin part of the mounting pin and the stop piece and limits the pin part and the limit piece to move in the extending direction of the pin part and the stop piece.
3. The grinding sub handling assembly of claim 2, wherein the side edges of the pin portion are provided with a first notch and a second notch arranged in a stepped manner in the direction of extension thereof, the first notch having a size greater than the second notch in the direction of extension of the pin portion; wherein the first notch mates with a first section of the first mounting hole and the second notch mates with a second section of the first mounting hole.
4. The grinding sub handling assembly of claim 1, wherein the mounting pin locking member comprises a positioning pin, the mounting pin receiving portion being provided with a first positioning hole in communication with the first mounting hole; the pin part is provided with a second positioning hole; the extending directions of the first positioning hole and the second positioning hole and the extending direction of the pin part are arranged in a staggered manner; the positioning pin is inserted through the first positioning hole and the second positioning hole to lock the mounting pin receiving part and the pin part.
5. The grinding sub handling assembly of claim 4, wherein the second locating hole is a closed hole or a notch provided along a side edge of the pin portion.
6. The grinding sub handling assembly of claim 4, wherein the locating pin is a split pin having a bent portion at least at one end, the bent portion being bent to restrict movement of the split pin in the insertion direction after the split pin is inserted through the first and second locating holes.
7. A wheel tread cleaning device, comprising: a brake head, an abrasive, and the abrasive handling assembly of any one of claims 1 to 6; wherein the brake head has an extended projecting mounting lug having a mounting cavity; the grinding piece is sleeved on the brake head from one side of the brake head with the mounting joint and exposes out of the mounting cavity; and the grinding sub assembling and disassembling component limits the grinding sub to move towards the direction departing from the brake head through the mounting pin arranged on the two sides of the mounting cavity and the mounting pin receiving part, and detachably locks the pin part of the mounting pin and the mounting pin receiving part through the mounting pin locking part.
8. The wheel tread sweeping device of claim 7, comprising: the base portion of the mounting pin and the mounting pin receiving portion of the grinding sub assembly are positioned against the grinding sub and limit movement of the grinding sub in a direction away from the brake head.
9. A rail vehicle, comprising: the abrasive sub-handling assembly of any one of claims 1 to 6 or the wheel tread sweeping device of claim 7 or 8.
10. A method for assembling and disassembling a grinding unit and a brake head, wherein the brake head is provided with a mounting joint which extends and protrudes, and the mounting joint is provided with a mounting cavity; characterized in that the method comprises:
the installation step:
sleeving the grinding piece on the brake head from one side of the brake head with the mounting joint, and exposing the mounting cavity;
inserting the pin portion of the mounting pin of the grinding sub-handling assembly of any one of claims 1 to 6 through the mounting cavity from the first side to the second side until the base portion of the mounting pin abuts the first side of the mounting cavity;
receiving a pin portion protruding from a second side of the mounting cavity using a first mounting hole of the mounting pin receiving part;
locking a pin portion of the mounting pin with the mounting pin receiving portion using the mounting pin locking member; and/or
Disassembling:
unlocking the mounting pin lock of the grinding sub-handling assembly of any of claims 1 to 6 and removing the mounting pin from the mounting pin receiving portion and the pin portion of the mounting pin;
taking the pin part out to a first mounting hole and the mounting cavity which are separated from the mounting pin receiving part;
and taking the grinder sleeved on the brake head out of the side, provided with the mounting joint, of the brake head.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911066942.9A CN112776757B (en) | 2019-11-04 | 2019-11-04 | Grinding sub assembly and method, wheel tread cleaning device and rail vehicle |
| PCT/CN2020/120007 WO2021068892A1 (en) | 2019-10-10 | 2020-10-09 | Abrasive block mounting and dismounting assembly, mounting and dismounting method, wheel tread cleaning device and railway vehicle |
| CN202090000888.8U CN218703218U (en) | 2019-10-10 | 2020-10-09 | Grinding sub assembly, wheel tread cleaning device and rail vehicle |
| US17/767,775 US20230339436A1 (en) | 2019-10-10 | 2020-10-09 | Abrasive block mounting and dismounting assembly, mounting and dismounting method, wheel tread cleaner and railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911066942.9A CN112776757B (en) | 2019-11-04 | 2019-11-04 | Grinding sub assembly and method, wheel tread cleaning device and rail vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112776757A true CN112776757A (en) | 2021-05-11 |
| CN112776757B CN112776757B (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911066942.9A Active CN112776757B (en) | 2019-10-10 | 2019-11-04 | Grinding sub assembly and method, wheel tread cleaning device and rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112776757B (en) |
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| CN202325959U (en) * | 2011-11-08 | 2012-07-11 | 东风汽车公司 | Positioning structure of high pressure fuel pump drive shaft |
| US20130047410A1 (en) * | 2011-08-29 | 2013-02-28 | Bright Technologies, Llc | Locking Pin with Spring Retention Mechanism |
| CN204175742U (en) * | 2014-10-27 | 2015-02-25 | 苏州腾东电气厂 | A kind of bearing pin |
| US20170095389A1 (en) * | 2015-10-06 | 2017-04-06 | Matthews Resources, Inc. | Locking fasteners and devices and methods for making same |
| CN109017692A (en) * | 2017-06-12 | 2018-12-18 | 常州中车铁马科技实业有限公司 | The grinding sub-component of wheel tread clearing apparatus |
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2019
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| US20070087612A1 (en) * | 2004-06-09 | 2007-04-19 | Nitto Kohki Co., Ltd. | Plug-socket assembly |
| CN202251312U (en) * | 2011-08-05 | 2012-05-30 | 太原科技大学 | Pin shaft end fixing device |
| US20130047410A1 (en) * | 2011-08-29 | 2013-02-28 | Bright Technologies, Llc | Locking Pin with Spring Retention Mechanism |
| CN202325959U (en) * | 2011-11-08 | 2012-07-11 | 东风汽车公司 | Positioning structure of high pressure fuel pump drive shaft |
| CN204175742U (en) * | 2014-10-27 | 2015-02-25 | 苏州腾东电气厂 | A kind of bearing pin |
| US20170095389A1 (en) * | 2015-10-06 | 2017-04-06 | Matthews Resources, Inc. | Locking fasteners and devices and methods for making same |
| CN109017692A (en) * | 2017-06-12 | 2018-12-18 | 常州中车铁马科技实业有限公司 | The grinding sub-component of wheel tread clearing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112776757B (en) | 2022-11-08 |
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