Grinding sub-assembly convenient to mount and dismount

Abstract

The utility model discloses a grinding sub-assembly convenient to assemble and disassemble, which comprises a grinding sub-assembly, a grinding sub-assembly support and an anti-falling assembly, and a first connecting part is arranged on a back plate of the grinding sub-assembly; an insertion head on a second connecting part of the grinding sub-support is provided with an insertion hole II; the anti-disengaging assembly comprises a first lock catch piece and a second lock catch piece, the first lock catch piece and / or the second lock catch piece are / is provided with a clamping pin and an inserting hole matched with the clamping pin, and during assembling, the clamping pin penetrates through the second inserting hole in the inserting head to be inserted and clamped into the corresponding inserting hole in the other one of the first lock catch piece and the second lock catch piece. The clamping pin on one of the first lock catch piece and / or the second lock catch piece penetrates through the second insertion hole in the insertion head to be inserted and clamped into the corresponding insertion hole in the other one of the first lock catch piece and the second lock catch piece, so that the grinding sub-assembly can be mounted and dismounted only by separating the clamping pin from the insertion hole and pulling out the clamping pin and the insertion hole. And the mounting and dismounting steps are easy and convenient to operate, the maintenance time of a single grinding sub-assembly can be greatly shortened, and the maintenance burden of maintenance personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of train track tread cleaning equipment, in particular to a grinding subassembly which is convenient to install and disassemble. Background Art

[0002] At present, when the wheel tread of a rail transit vehicle is damaged, out of round, or has low viscosity, the wheel surface condition can be improved, slipping and idling can be prevented, and the wheel tread can be corrected by contacting the grinding wheel of the tread cleaning device. The tread cleaning device of the prior art includes a grinding wheel and a grinding wheel holder, and the grinding wheel and the grinding wheel holder are locked and connected by an anti-slip device, and most of the anti-slip devices are hook tongue socket pin connection components. For example, the Chinese utility model patent with application number 202120687588.8 discloses an anti-slip grinding sub-assembly and a tread cleaner, wherein the anti-slip grinding sub-assembly includes a grinder, a grinder holder and an anti-slip device, the grinder includes a back plate, the back plate is provided with a first connecting part, the first connecting part includes an insertion hole; the grinder holder includes a second connecting part, the second connecting part includes an insertion head, the second connecting part is suitable for being connected to the first connecting part to connect the grinder holder and the back plate, and the insertion head is suitable for being assembled into the insertion hole when the first connecting part and the second connecting part are assembled in place; the anti-slip device is arranged on the insertion head, the anti-slip device includes at least one hook tongue suitable for being constrained during the process of inserting the insertion head into the insertion hole so that the insertion head can be smoothly inserted into the insertion hole and being in an anti-slip position after the insertion head is assembled into the insertion hole to prevent the insertion head from being detached from the insertion hole, and an anti-slip member is provided between the hook tongue and the insertion head to prevent the hook tongue from being detached from the anti-slip position; the anti-slip member is a cotter pin. The problem with the tread cleaner of this structure is that since the grinder is a consumable part, its maintenance and replacement is relatively frequent. The structure of the anti-slip device of this structure is complex, resulting in a long maintenance and replacement time for a single grinder, which invisibly increases the maintenance burden of the maintenance personnel in maintaining the grinders in the tread cleaning device on the entire locomotive. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects in the prior art and provide a grinding sub-assembly which is easy to install and disassemble. The installation of the grinding sub-assembly can be completed by plugging the insertion head on the grinding sub-support into the insertion hole 1 on the grinding sub-back plate, and then passing the locking pin on one of the locking member 1 and / or the locking member 2 through the insertion hole 2 on the insertion head and plugging it into the corresponding plug-in hole on the other of the two. When disassembling, it is only necessary to disengage the corresponding plug-in pin and plug-in hole on the locking member 1 and the locking member 2 and pull them out. The installation and disassembly steps are simple to operate, which helps to greatly shorten the maintenance time of a single grinding sub-assembly, thereby significantly reducing the maintenance burden of the maintenance personnel on the grinding sub in the tread cleaning device on the locomotive; the overall structural design is simple and easy to install or disassemble, which is convenient for installation and use on a tread cleaner with a narrow operating space.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is to design a grinding sub-assembly that is easy to install and disassemble, including a grinding sub-assembly, a grinding sub-assembly holder and an anti-slip assembly, wherein the upper side of the grinding sub-assembly is provided with a back plate, the back plate is provided with a first connecting portion, the first connecting portion includes an insertion hole 1; the grinding sub-assembly holder includes a second connecting portion, the second connecting portion includes an insertion head, the second connecting portion is suitable for being connected to the first connecting portion to connect the grinding sub-assembly holder and the back plate, and the insertion head is suitable for being assembled into the grinding sub-assembly when the first connecting portion and the second connecting portion are assembled in place Inside the insertion hole one, the insertion head has an insertion hole two that passes through its body; the anti-drop assembly includes a locking piece one and a locking piece two, and the locking piece one and / or the locking piece two are provided with a snap-on pin, and the locking piece one and / or the locking piece two are also provided with a plug-in hole that matches the snap-on pin. When the grinder and the grinder support are assembled in place through the first connecting part and the second connecting part, the snap-on pin on one of the locking piece one and / or the locking piece two passes through the insertion hole two on the insertion head and is plugged and snapped into the corresponding plug-in hole on the other of the two.

[0005] The utility model discloses a grinding sub-assembly which is convenient to install and disassemble. The installation of the grinding sub-assembly is completed by inserting an insertion head on a grinding sub-support into an insertion hole 1 on a grinding sub-back plate, and then inserting and engaging the grinding sub-assembly through an insertion hole 2 on the insertion head through a locking member 1 and / or a locking member 2 through a locking pin on the locking member 1 and / or the locking member 2 and engaging the locking pin into a corresponding insertion hole on the other of the two. When disassembling, it is only necessary to disengage the locking pin and the insertion hole that are engaged with each other on the locking member 1 and the locking member 2 and pull them out. The installation and disassembly steps are simple to operate, which helps to greatly shorten the maintenance time of a single grinding sub-assembly, thereby significantly reducing the maintenance burden of the maintenance personnel on the grinding sub in the tread cleaning device on the locomotive. The overall structural design is simple and the installation or disassembly is convenient, which is convenient for installation and use on a tread cleaner with a narrow operating space.

[0006] The preferred technical solution is that the locking member 1 includes a pin part 1, the pin part 1 has a base 1 at one end and a plug leg 1 extending in the length direction at the other end, the plug leg 1 has a snap-on pin 1 at the free end, and the pin part 1, the plug leg 1 and the snap-on pin 1 constitute the snap-on pin; the locking member 2 has a plug-in hole 1 adapted to the plug leg 1, and when the grinder and grinder support are assembled in place through the first connecting part and the second connecting part, the snap-on pin 1 on the locking member 1 sequentially passes through the insertion hole 2 and the plug-in hole 1 on the insertion head and snaps on the outer edge surface of the locking member 2, the pin part 1 is inserted into the insertion hole 2, and the plug leg 1 is inserted into the plug-in hole 1. The structural design of the locking member 1 and the locking member 2 is simple and reasonable, ensuring that the grinding subassembly with convenient installation and disassembly of the utility model can be smoothly prepared and implemented.

[0007] A further preferred technical solution is that the plug-in leg 1 includes two correspondingly arranged ones, and the pin part 1 has an end face with the plug-in leg 1 and also has an arc-shaped through groove located between the two plug-in legs 1. When the grinder and grinder support are assembled in place through the first connecting part and the second connecting part, the two clamping pins 1 on the lock member 1 sequentially pass through the insertion hole 2 on the insertion head and the plug-in hole 1 and are clamped on a group of opposite edge surfaces of the outer end edge surface of the lock member 2. The lock member 1 is clamped with the plug-in hole 1 on the lock member 2 through two parallel clamping pins, which significantly improves the clamping stability between the lock member 1 and the lock member 2. At the same time, the pin part 1 has an end face with the plug-in leg 1 and also has an arc-shaped through groove located between the two plug-in legs 1, which significantly improves the compressible rebound deformation between the two plug-in legs 1, which helps to improve the convenience of disassembly between the lock member 1 and the lock member 2.

[0008] A further preferred technical solution is that the vertical surfaces of the two plug-in legs 1 on the opposite sides are both provided with a notch groove 1, and the vertical inner wall surfaces on both sides of the plug-in hole 1 are both provided with a convex arc surface structure, and when the grinding wheel and the grinding wheel holder are assembled in place through the first connecting part and the second connecting part, the notch groove 1 on the two plug-in legs 1 is engaged with the corresponding convex arc surface structure inside the plug-in hole 1;

[0009] The end face of the pin part 1 facing away from the base 1 also has a step face 1 located on the lower side of the plug-in leg. When the grinder and grinder holder are assembled in place through the first connecting part and the second connecting part, the step face 1 abuts against the inner end face of the base 2. The vertical faces on both sides of the plug-in leg 1 of the locking member 1 are engaged with the arc-shaped convex surface structure corresponding to the plug-in hole 1 of the locking member 2 through the notch groove, and the end face of the pin part also abuts against the inner end face of the base 2 through the step face 1, which significantly improves the assembly stability between the locking member 1 and the locking member 2.

[0010] The preferred technical solution is that the locking part 1 includes a pin part 1, both ends of the pin part 1 have a plug-in leg 1 extending in the length direction, the free end of the plug-in leg 1 has a clamping pin 1, and the pin part 1, the plug-in leg 1 and the clamping pin 1 constitute the clamping pin; the locking part 2 includes two, and the two locking parts 2 have a plug-in hole 1 adapted to the plug-in leg 1, when the grinder and the grinder support are assembled in place through the first connecting part and the second connecting part, the pin part 1 is inserted into the insertion hole 2, and the clamping pins 1 at both ends of the pin part 1 pass through the plug-in hole 1 on the locking part 2 and clamp on the outer edge surface of the corresponding locking part 2, and the two plug-in legs 1 are inserted into the plug-in hole 1 on the corresponding locking part 2. The structural design of the locking part 1 and the locking part 2 is simple and reasonable, ensuring that the grinding subassembly with convenient installation and disassembly of the utility model can be smoothly prepared and implemented.

[0011] A further preferred technical solution is that two plug-in legs extending along the length direction are correspondingly provided at both ends of the pin portion one, and the two end surfaces of the pin portion one also have an arc-shaped through groove located between the two plug-in legs one. When the grinder and the grinder support are assembled in place through the first connecting part and the second connecting part, the two clamping pins one at both ends of the pin portion one respectively pass through a plug-in hole one on a locking piece two and are clamped on a group of relative edge surfaces of the outer end edge surface of the corresponding locking piece two, and the two plug-in legs one are both connected to the inside of the plug-in hole one on the corresponding locking piece two, and the pin portion one is provided with a waist-shaped through hole corresponding to the arc-shaped through groove, and the long axis direction of the waist-shaped through hole is consistent with the length direction of the locking piece one. Both ends of the locking piece one are engaged with an insertion hole one on a locking piece two through two parallel arranged engaging pins, which significantly improves the stability of the engagement between the locking piece one and the locking piece two. At the same time, both end surfaces of the pin part one have an arc-shaped through groove located between the two insertion legs one, which significantly improves the compressible rebound deformation between the two insertion legs one, and helps to improve the convenience of disassembly between the locking piece one and the locking piece two.

[0012] A further preferred technical solution is that the first clamping pin is provided with a through hole perpendicular to the plane of the first pin. The through hole on the first clamping pin is convenient for inserting and disassembling tools, such as a screwdriver and a U-shaped pin, which helps to improve the convenience of disassembly between the first and second locking parts.

[0013] Another preferred technical solution is that the locking member 1 includes a pin portion 1, the pin portion 1 has a base 1 at one end and a plug leg 1 extending along the length direction at the other end, the plug leg 1 has a clamping pin 1 at a free end, the pin portion 1, the plug leg 1 and the clamping pin 1 constitute a clamping pin on the locking member 1, and the base 1 has a plug hole 2;

[0014] The second locking member comprises a second pin portion, one end of the second pin portion has a second base, the other end has a second plug-in leg extending in the length direction, the free end of the second plug-in leg has a second card-connecting pin, the second pin portion, the second plug-in leg and the second card-connecting pin constitute a card-connecting pin on the second locking member, and the second base has a first plug-in hole;

[0015] When the grinding wheel and the grinding wheel support are assembled in place through the first connecting part and the second connecting part, the clamping pin 1 on the locking part 1 passes through the insertion hole 2 and the plug hole 1 on the insertion head in sequence and is clamped on the outer edge surface of the base 2, the pin part 1 is inserted into the insertion hole 2, the plug leg 1 is inserted into the plug hole 1, the clamping pin 2 on the locking part 2 passes through the plug hole 2 and is clamped on the outer edge surface of the base 1, and the plug leg 1 is inserted into the plug hole 2. The locking part 1 and the locking part 2 are plug-in-and-snap-in connection through two corresponding sets of clamping pins and plug holes, and the structural design is simple, ensuring the structural stability of the anti-drop assembly and the smooth preparation and implementation of the grinding subassembly of the utility model.

[0016] A further preferred technical solution is that the end face of the pin part 1 away from the base 1 also has a step face 1 located at the lower side of the plug leg, and the end face of the pin part 2 away from the base 2 also has a step face 2 located at the upper side of the plug leg 2. When the grinder and the grinder holder are assembled in place through the first connecting part and the second connecting part, the step face 1 abuts against the inner end face of the base 2, and the step face 2 abuts against the inner end face of the base 1. The clamping pin at one end of the plug leg and the step face at the other end make the assembly relationship between the plug leg and the plug hole more stable, thereby significantly improving the stability of the grinder assembly of the utility model.

[0017] A further preferred technical solution is that the vertical surface of one side of the plug-in leg 1 has a notch groove 1, the vertical surface of one side of the plug-in leg 2 has a notch groove 2, the vertical inner wall surface of one side of the plug-in hole 2 and the vertical inner wall surface of one side of the plug-in hole 1 are both set as convex arc surface structures, and when the grinding child and the grinding child holder are assembled in place through the first connecting part and the second connecting part, the notch groove 1 and the notch groove 2 are both engaged with the corresponding convex arc surface structure;

[0018] The said clamping pin 1 and clamping pin 2 are both provided with through holes perpendicular to the plane where the pin part 1 or the pin part 2 is located. The vertical surface on one side of the plug-in leg of the locking member on one side is engaged with the arc-shaped convex surface structure corresponding to the plug-in hole of the other locking member through the notch groove, and the end surface of the pin part is also abutted against the inner end surface of the corresponding base through the step surface, which significantly improves the assembly stability between the locking member 1 and the locking member 2.

[0019] The advantages and beneficial effects of the utility model are:

[0020] 1. The utility model provides a grinding sub-assembly which is convenient to install and disassemble. The installation of the grinding sub-assembly can be completed by inserting the insertion head on the grinding sub-holder into the insertion hole 1 on the grinding sub-back plate, and then inserting and engaging the locking pin on one of the locking member 1 and / or the locking member 2 through the insertion hole 2 on the insertion head and engaging and engaging the locking pin into the corresponding insertion hole on the other of the two. When disassembling, it is only necessary to disengage the locking pin and the insertion hole that are engaged with each other on the locking member 1 and the locking member 2 and pull out the two. The installation and disassembly steps are simple to operate, which helps to greatly shorten the maintenance time of a single grinding sub-assembly, thereby significantly reducing the maintenance burden of the maintenance personnel on the grinding sub in the tread cleaning device on the locomotive; the overall structural design is simple, and the installation or disassembly is convenient, which is convenient for installation and use on the tread cleaning device with a small operating space.

[0021] 2. The locking member 1 is engaged with the plug-in hole 1 on the locking member 2 through two parallel-arranged plug-in pins, which significantly improves the stability of the plug-in fit between the locking member 1 and the locking member 2. At the same time, one end face of the pin portion 1 having the plug-in leg 1 also has an arc-shaped through groove located between the two plug-in legs 1, which significantly improves the compressible rebound deformation between the two plug-in legs 1, and helps to improve the convenience of disassembly between the locking member 1 and the locking member 2.

[0022] 3. The vertical surfaces on both sides of the plug-in leg 1 of the locking component 1 are engaged with the arc-shaped convex structure corresponding to the plug-in hole 1 of the locking component 2 through the notch groove, and the end face of the pin part is also abutted against the inner end face of the base 2 through the step surface 1, which significantly improves the assembly stability between the locking component 1 and the locking component 2.

[0023] 4. The first clamping pin is provided with a through hole perpendicular to the plane where the first pin is located. The through hole on the first clamping pin is convenient for inserting and inserting disassembly tools, such as a screwdriver or a U-shaped pin, which helps to improve the convenience of disassembly between the first and second locking parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of a grinding subassembly that is easy to install and disassemble in Example 1;

[0025] Figure 2 This is a schematic diagram of the disassembled structure of a grinding subassembly that is easy to install and disassemble in Example 1;

[0026] Figure 3 Schematic diagram of the disassembled structure of the anti-detachment component in Example 1;

[0027] Figure 4 is a cross-sectional view of the second locking member in Example 1;

[0028] Figure 5 It is a schematic diagram of the assembly structure of the locking component 1 and the locking component 2 of the anti-drop assembly in Example 1;

[0029] Figure 6 It is a schematic diagram of the assembly structure of the locking component 1 and the locking component 2 of the anti-drop assembly in Example 2;

[0030] Figure 7 is a schematic structural diagram of a locking member 1 in Example 2;

[0031] Figure 8 It is a three-dimensional structural schematic diagram of a grinding subassembly that is easy to install and disassemble in Example 3;

[0032] Fig. 9 It is a schematic diagram of the assembly structure of the locking component 1 and the locking component 2 of the anti-drop assembly in Example 3;

[0033] Fig.10is a three-dimensional structural diagram of a locking member 1 in Example 3;

[0034] Fig.11 is a three-dimensional structural diagram of the second locking member in Example 3;

[0035] Fig.12 It is a cross-sectional view of the second locking member at the position of the first plug hole in Example 3.

[0036] In the figure: 1. grinder; 2. grinder support; 3. anti-slip assembly; 1-1. back plate; 1-1a. insertion slot; 1-1b. insertion hole one; 2-1. insertion head; 2-1a. insertion hole two; 2-2. base plate; 2-3. mounting ear; A. locking piece one; A-1. pin one; A-2. plug-in leg one; A-3. snap-on pin one; A-4. base one; A-5. step surface one; A-6. arc-shaped through slot; A-7. notch slot one; A-8. through hole; A-9. waist-shaped through hole; A-10. plug-in hole two; B. locking piece two; B-1. plug-in hole one; B-2. pin two; B-3. plug-in leg two; B-4. snap-on pin two; B-5. base two; B-6. step surface two; B-7. notch slot two; C. convex arc surface structure. DETAILED DESCRIPTION

[0037] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0038] Example 1

[0039] like Figures 1 to 5As shown, the utility model is a grinding sub-assembly that is easy to install and disassemble, including a grinding sub-assembly 1, a grinding sub-holder 2 and an anti-slip assembly 3. The upper side of the grinding sub-assembly 1 is provided with a back plate 1-1, and the back plate 1-1 is provided with a first connecting portion, and the first connecting portion includes an insertion hole 1-1b; the grinding sub-holder 2 includes a second connecting portion, and the second connecting portion includes an insertion head 2-1, and the second connecting portion is suitable for connecting with the first connecting portion to connect the grinding sub-holder 2 and the back plate 1-1, and the insertion head 2-1 is suitable for being assembled into the insertion hole 1 when the first connecting portion and the second connecting portion are assembled in place. -1b, the insertion head 2-1 has an insertion hole 2-1a that passes through its body; the anti-dropping component 3 includes a locking component A and a locking component B, the locking component A and / or the locking component B are provided with a snap-on pin, the locking component A and / or the locking component B are also provided with a plug-in hole that is compatible with the snap-on pin, when the grinder 1 and the grinder holder 2 are assembled in place through the first connecting part and the second connecting part, the snap-on pin on one of the locking component A and / or the locking component B passes through the insertion hole 2-1a on the insertion head 2-1 and is plugged and snapped into the corresponding plug-in hole on the other of the two.

[0040] Preferably, the locking member A includes a pin portion A-1, one end of the pin portion A-1 has a base A-4, and the other end has a plug-in leg A-2 extending along the length direction, the free end of the plug-in leg A-2 has a snap-in pin A-3, the pin portion A-1, the plug-in leg A-2 and the snap-in pin A-3 constitute the snap-in pin; the locking member B has a plug-in hole B-1 adapted to the plug-in leg A-2, when the grinder 1 and the grinder support 2 are assembled in place through the first connecting portion and the second connecting portion, the snap-in pin A-3 on the locking member A passes through the insertion hole 2-1a and the plug-in hole B-1 on the insertion head 2-1 in turn and is snap-connected to the outer end edge surface of the locking member B, the pin portion A-1 is inserted into the insertion hole 2-1a, and the plug-in leg A-2 is inserted into the plug-in hole B-1.

[0041] Further preferably, the plug-in leg A-2 includes two correspondingly arranged ones, the pin portion A-1 has an end face of the plug-in leg A-2 and also has an arc-shaped through groove A-6 located between the two plug-in legs A-2, and when the grinder 1 and the grinder holder 2 are assembled in place through the first connecting portion and the second connecting portion, the two locking pins A-3 on the locking member A sequentially pass through the insertion hole 2-1a and the plug-in hole B-1 on the insertion head 2-1 and are locked on a group of relative edge surfaces of the outer end edge surface of the locking member B.

[0042] Further preferably, the vertical surfaces of the two plug-in legs A-2 on the opposite sides are both provided with a notch groove A-7, and the vertical inner wall surfaces on both sides of the plug-in hole B-1 are both provided with a convex arc surface structure C, and when the grinding wheel 1 and the grinding wheel holder 2 are assembled in place through the first connecting part and the second connecting part, the notch groove A-7 on the two plug-in legs A-2 are engaged with the corresponding convex arc surface structure C inside the plug-in hole B-1;

[0043] The end surface of the pin portion A-1 facing away from the base A-4 also has a step surface A-5 located at the lower side of the plug-in leg A-2. When the grinder 1 and the grinder holder 2 are assembled in place through the first connecting portion and the second connecting portion, the step surface A-5 abuts against the inner end surface of the base B-5.

[0044] Further preferably, the card pin 1 A-3 is provided with a through hole A-8 which is perpendicular to the plane where the pin portion 1 A-1 is located.

[0045] Further preferably, the first connecting portion is an insertion groove 1-1a arranged on the side of the back plate 1-1 away from the grinder 1, the insertion hole 1-1b is located at one end of the insertion groove 1-1a, and the other end of the insertion groove 1-1a is open; the second connecting portion is a substrate 2-2, the insertion head 2-1 is integrally formed at one end of the substrate 2-2, and the side of the substrate 2-2 away from the grinder 1 has a pair of mounting ears 2-3; when the grinder 1 and the grinder holder 2 are assembled in place through the first connecting portion and the second connecting portion, the substrate 2-2 is inserted into the inside of the insertion groove 1-1a from the open end of the insertion groove 1-1a.

[0046] The utility model discloses a grinding subassembly that is easy to install and disassemble, and the installation and disassembly principle is as follows:

[0047] During installation, the base plate 2-2 of the grinding wheel holder 2 is inserted into the inside of the insertion groove 1-1a from the open end thereof, the insertion head 2-1 is passed through the insertion hole 1-1b to the outside of one end of the grinding wheel 1, and the two clamping legs 1-3 of the locking member 1-A are sequentially passed through the insertion hole 2-1a on the insertion head 2-1 and the plug-in hole 1-1 on the locking member 2-B to be clamped on a set of opposite edge surfaces of the outer end edge surface of the locking member 2-B, wherein the pin portion 1-1 is passed through the insertion hole 2-1a, the plug-in leg 1- 2 is inserted into the plug-in hole B-1; when disassembling, the two leg ends of an elastic U-shaped card are respectively inserted into the through holes A-8 on the two card pins A-3 of the lock piece A, and the two legs of the elastic U-shaped card are forced to shrink inward, so that the two card pins A-3 shrink inwardly inside the plug-in hole B-1 and separate from the outer edge surface of the lock piece B, and then the lock piece A moves to the side away from the lock piece B, so that the lock piece A and the lock piece B are separated.

[0048] Example 2

[0049] like Figures 6-7 As shown, the utility model is a grinding subassembly that is easy to install and disassemble. The difference from the grinding subassembly in Example 1 is that the locking member A includes a pin portion A-1, both ends of the pin portion A-1 have plug-in legs A-2 extending along the length direction, and the free end of the plug-in leg A-2 has a card-connecting pin A-3, and the pin portion A-1, the plug-in leg A-2 and the card-connecting pin A-3 constitute the card-connecting pin; the locking member B includes two, and the two locking members Both B have a plug-in hole 1B-1 adapted to the plug-in leg 1A-2. When the grinder 1 and the grinder support 2 are assembled in place through the first connecting part and the second connecting part, the pin part 1A-1 is inserted into the insertion hole 2-1a, and the clamping pins 1A-3 at both ends of the pin part 1A-1 pass through the plug-in hole 1B-1 on the locking part 2B respectively and are clamped on the outer edge surface of the corresponding locking part 2B. The two plug-in legs 1A-2 are both inserted into the plug-in hole 1B-1 on the corresponding locking part 2B.

[0050] Preferably, two plug-in legs A-2 extending along the length direction are correspondingly provided at both ends of the pin portion A-1, and the two end surfaces of the pin portion A-1 also have an arc-shaped through groove A-6 located between the two plug-in legs A-2. When the grinder 1 and the grinder support 2 are assembled in place through the first connecting part and the second connecting part, the two clamping pins A-3 at both ends of the pin portion A-1 respectively pass through a plug-in hole B-1 on a locking component B and are clamped on a group of relative edge surfaces of the outer end edge surface of the corresponding locking component B. The two plug-in legs A-2 are both connected to the inside of the plug-in hole B-1 on the corresponding locking component B. The pin portion A-1 is provided with a waist-shaped through hole A-9 corresponding to the arc-shaped through groove A-6, and the long axis direction of the waist-shaped through hole A-9 is consistent with the length direction of the locking component A.

[0051] The utility model discloses a grinding subassembly that is easy to install and disassemble, and the installation and disassembly principle is as follows:

[0052] During installation, the base plate 2-2 of the grinding disc holder 2 is inserted into the opening end of the insertion groove 1-1a, and the insertion head 2-1 is inserted from the insertion hole 1-1b to the outside of one end of the grinding disc 1. The pin part A-1 is inserted into the insertion hole 2-1a, and the clamping pins A-3 at both ends of the pin part A-1 pass through the plug-in hole B-1 on the locking part B and are clamped on the outer edge surface of the corresponding locking part B. The two plug-in legs A-2 are inserted into the plug-in hole B-1 on the corresponding locking part B. -1; when disassembling, the two leg ends of an elastic U-shaped card are respectively inserted into the through holes A-8 on the two card pins A-3 at one end of the locking member A, and the two legs of the elastic U-shaped card are forced to shrink inward, so that the two card pins A-3 shrink inward to the inside of the insertion hole B-1 on the corresponding locking member B and disengage from the outer edge surface of the locking member B, and then the locking member A is moved to the side away from the locking member B, so that the locking member A and the locking member B are disengaged.

[0053] Example 3

[0054] like Figures 8 to 12 As shown, the utility model is a grinding subassembly that is easy to install and disassemble. The difference from the grinding subassembly in Example 1 is that the locking member A includes a pin portion A-1, one end of the pin portion A-1 has a base A-4, and the other end has a plug-in leg A-2 extending along the length direction, and the free end of the plug-in leg A-2 has a card pin A-3, the pin portion A-1, the plug-in leg A-2 and the card pin A-3 constitute a card pin on the locking member A, and the base A-4 has a plug-in hole A-10;

[0055] The locking member B comprises a pin portion B-2, one end of the pin portion B-2 has a base B-5, and the other end has a plug-in leg B-1 extending along the length direction, the free end of the plug-in leg B-1 has a clamping pin B-4, the pin portion B-2, the plug-in leg B-1 and the clamping pin B-4 constitute a clamping pin on the locking member B, and the base B-5 has a plug-in hole B-1;

[0056] When the grinding wheel 1 and the grinding wheel holder 2 are assembled in place through the first connecting part and the second connecting part, the locking pin A-3 on the locking member A passes through the insertion hole 2-1a and the plug-in hole 1-1 on the insertion head 2-1 in turn and is clamped on the outer edge surface of the base 2-5, the pin portion A-1 is inserted into the insertion hole 2-1a, the plug-in leg A-2 is inserted into the plug-in hole 1-1, the locking pin B-4 on the locking member B passes through the plug-in hole 2-10 and is clamped on the outer edge surface of the base 1-4, and the plug-in leg A-2 is inserted into the plug-in hole 2-10.

[0057] Preferably, an end face of the pin portion A-1 facing away from the base A-4 also has a step surface A-5 located at the lower side of the plug-in leg A-2, and an end face of the pin portion B-2 facing away from the base B-5 also has a step surface B-6 located at the upper side of the plug-in leg B-1. When the grinder 1 and the grinder holder 2 are assembled in place through the first connecting portion and the second connecting portion, the step surface A-5 abuts against the inner end face of the base B-5, and the step surface B-6 abuts against the inner end face of the base A-4.

[0058] Further preferably, the vertical surface of one side of the plug-in leg A-2 has a notch groove A-7, the vertical surface of one side of the plug-in leg B-1 has a notch groove B-7, the vertical inner wall surface of one side of the plug-in hole A-10 and the vertical inner wall surface of one side of the plug-in hole B-1 are both set as convex arc surface structure C, and when the grinding child 1 and the grinding child holder 2 are assembled in place through the first connecting part and the second connecting part, the notch groove A-7 and the notch groove B-7 are both engaged with the corresponding convex arc surface structure C;

[0059] The card pin 1 A-3 and the card pin 2 B-4 are both provided with a through hole A-8 perpendicular to the plane where the pin part 1 A-1 or the pin part 2 B-2 is located.

[0060] The utility model discloses a grinding subassembly that is easy to install and disassemble, and the installation and disassembly principle is as follows:

[0061] During installation, the base plate 2-2 of the grinding disc holder 2 is inserted into the inside of the insertion groove 1-1a from the open end thereof, the insertion head 2-1 is passed through the insertion hole 1-1b to the outside of one end of the grinding disc 1, the clamping pin 1-3 on the locking member 1-A passes through the insertion hole 2-1a and the plug hole 1-1 on the insertion head 2-1 in sequence and is clamped to the outer edge surface of the base 2-B-5, the pin 1-1 is connected and located in the insertion hole 2-1a, the plug leg 1-2 is connected and located in the plug hole 1-1, and at the same time, the clamping pin 2-4 on the locking member 2-B passes through the plug hole 2-10 and is clamped to the base 1- 4, and the plug-in leg A-2 is connected to the inside of the plug-in hole A-10; when disassembling, connect a screwdriver to the inside of the through hole A-8 on the card pin A-3, and connect another screwdriver to the inside of the through hole A-8 on the card pin B-4, and then use the two screwdrivers to respectively move the card pin A-3 and the card pin B-4 to the side away from the grinder 1, so that the card pin A-3 is separated from the outer edge of the base B-5, and the card pin B-4 is separated from the outer edge of the base A-4, and then pull out the locking piece A and the locking piece B to the opposite sides.

[0062] The utility model discloses a grinding sub-assembly which is convenient to install and disassemble. The installation of the grinding sub-assembly is completed by inserting an insertion head on a grinding sub-support into an insertion hole 1 on a grinding sub-back plate, and then inserting and engaging the grinding sub-assembly through an insertion hole 2 on the insertion head through a locking member 1 and / or a locking member 2 through a locking pin on the locking member 1 and / or the locking member 2 and engaging the locking pin into a corresponding insertion hole on the other of the two. When disassembling, it is only necessary to disengage the locking pin and the insertion hole that are engaged with each other on the locking member 1 and the locking member 2 and pull them out. The installation and disassembly steps are simple to operate, which helps to greatly shorten the maintenance time of a single grinding sub-assembly, thereby significantly reducing the maintenance burden of the maintenance personnel on the grinding sub in the tread cleaning device on the locomotive. The overall structural design is simple and the installation or disassembly is convenient, which is convenient for installation and use on a tread cleaner with a narrow operating space.

[0063] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A grinding subassembly which is convenient for installation and disassembly, comprising a grinding subassembly (1), a grinding subassembly holder (2) and an anti-slip assembly (3), wherein the grinding subassembly (1) has a back plate (1-1) on its upper side, wherein the back plate (1-1) is provided with a first connecting portion, wherein the first connecting portion comprises an insertion hole (1-1b); the grinding subassembly holder (2) comprises a second connecting portion, wherein the second connecting portion comprises an insertion head (2-1), wherein the second connecting portion is adapted to be connected to the first connecting portion so as to connect the grinding subassembly holder (2) and the back plate (1-1), wherein the insertion head (2-1) is adapted to be assembled into the insertion hole (1-1b) when the first connecting portion and the second connecting portion are assembled in place, wherein: The insertion head (2-1) is provided with an insertion hole 2 (2-1a) penetrating the body thereof; the anti-drop assembly (3) comprises a locking member 1 (A) and a locking member 2 (B), the locking member 1 (A) and / or the locking member 2 (B) being provided with a snap-in pin, the locking member 1 (A) and / or the locking member 2 (B) being provided with a plug-in hole adapted to the snap-in pin, and when the grinder (1) and the grinder holder (2) are assembled in place via the first connecting portion and the second connecting portion, the snap-in pin on one of the locking member 1 (A) and / or the locking member 2 (B) passes through the insertion hole 2 (2-1a) on the insertion head (2-1) and is plugged and snap-fitted into the corresponding plug-in hole on the other of the two.

2. The grinding subassembly that is easy to install and disassemble as claimed in claim 1, characterized in that: The locking member (A) comprises a pin portion (A-1), one end of the pin portion (A-1) has a base (A-4), and the other end has a plug-in leg (A-2) extending along the length direction, the free end of the plug-in leg (A-2) has a card-connecting pin (A-3), and the pin portion (A-1), the plug-in leg (A-2) and the card-connecting pin (A-3) constitute the card-connecting pin; the locking member (B) has a plug-in leg (A-2) adapted to fit the plug-in leg (A-2). Hole 1 (B-1), when the grinding wheel (1) and the grinding wheel holder (2) are assembled in place through the first connecting part and the second connecting part, the locking pin 1 (A-3) on the locking member 1 (A) passes through the insertion hole 2 (2-1a) and the plug hole 1 (B-1) on the insertion head (2-1) in sequence and is locked on the outer edge surface of the locking member 2 (B), the pin 1 (A-1) is inserted into the insertion hole 2 (2-1a), and the plug leg 1 (A-2) is inserted into the plug hole 1 (B-1).

3. The grinding subassembly that is easy to install and disassemble as claimed in claim 2, characterized in that: The plug-in leg (A-2) includes two correspondingly arranged ones, and the pin part (A-1) has an end surface of the plug-in leg (A-2) and also has an arc-shaped through groove (A-6) located between the two plug-in legs (A-2). When the grinder (1) and the grinder holder (2) are assembled in place through the first connecting part and the second connecting part, the two engaging pins (A-3) on the locking member (A) pass through the insertion hole (2-1a) and the plug-in hole (B-1) on the insertion head (2-1) in sequence and are engaged with a group of opposite edge surfaces of the outer end edge surface of the locking member (B).

4. The grinding subassembly that is easy to install and disassemble as claimed in claim 3 is characterized in that: The vertical surfaces of the two plug-in legs (A-2) on the opposite sides are both provided with a notch groove (A-7), and the vertical inner wall surfaces on both sides of the plug-in hole (B-1) are both provided with convex arc surface structures (C), and when the grinding wheel (1) and the grinding wheel holder (2) are assembled in place through the first connecting part and the second connecting part, the notch groove (A-7) on the two plug-in legs (A-2) are engaged with the corresponding convex arc surface structure (C) inside the plug-in hole (B-1); The end surface of the pin portion 1 (A-1) facing away from the base 1 (A-4) also has a step surface 1 (A-5) located at the lower side of the plug-in leg 1 (A-2). When the grinder (1) and the grinder holder (2) are assembled in place through the first connecting part and the second connecting part, the step surface 1 (A-5) abuts against the inner end surface of the base 2 (B-5).

5. The grinding subassembly that is easy to install and disassemble as claimed in claim 1, characterized in that: The locking member 1 (A) comprises a pin portion 1 (A-1), both ends of the pin portion 1 (A-1) have a plug-in leg 1 (A-2) extending along the length direction, the free end of the plug-in leg 1 (A-2) has a card-connecting pin 1 (A-3), the pin portion 1 (A-1), the plug-in leg 1 (A-2) and the card-connecting pin 1 (A-3) constitute the card-connecting pin; the locking member 2 (B) comprises two, and the two locking members 2 (B) have a plug-in hole adapted to the plug-in leg 1 (A-2). 1 (B-1), when the grinding wheel (1) and the grinding wheel holder (2) are assembled in place through the first connecting part and the second connecting part, the pin part (A-1) is connected to the inside of the insertion hole (2-1a), and the clamping legs (A-3) at both ends of the pin part (A-1) respectively pass through the plug-in hole (B-1) on the locking part (B) and are clamped on the outer edge surface of the corresponding locking part (B), and the two plug-in legs (A-2) are both connected to the inside of the plug-in hole (B-1) on the corresponding locking part (B).

6. The grinding subassembly that is easy to install and disassemble as claimed in claim 5, characterized in that: Two corresponding plug-in legs (A-2) extending along the length direction are arranged at both ends of the pin part (A-1), and the two end surfaces of the pin part (A-1) also have an arc-shaped through groove (A-6) located between the two plug-in legs (A-2). When the grinder (1) and the grinder support (2) are assembled in place through the first connecting part and the second connecting part, the two clamping pins (A-3) at both ends of the pin part (A-1) respectively pass through a plug-in hole (B-1) on a locking member (B) and are clamped on a group of opposite edge surfaces of the outer end edge surface of the corresponding locking member (B). The two plug-in legs (A-2) are both connected to the inside of the plug-in hole (B-1) on the corresponding locking member (B). The pin part (A-1) is provided with a waist-shaped through hole (A-9) corresponding to the arc-shaped through groove (A-6), and the long axis direction of the waist-shaped through hole (A-9) is consistent with the length direction of the locking member (A).

7. The grinding subassembly that is easy to install and disassemble according to any one of claims 2 to 6, characterized in that: The clamping pin 1 (A-3) is provided with a through hole (A-8) which is perpendicular to the plane where the pin part 1 (A-1) is located.

8. The grinding subassembly that is easy to install and disassemble as claimed in claim 1, characterized in that: The locking member 1 (A) comprises a pin portion 1 (A-1), one end of the pin portion 1 (A-1) has a base 1 (A-4), and the other end has a plug-in leg 1 (A-2) extending along the length direction, the free end of the plug-in leg 1 (A-2) has a card-connecting pin 1 (A-3), the pin portion 1 (A-1), the plug-in leg 1 (A-2) and the card-connecting pin 1 (A-3) constitute a card-connecting pin on the locking member 1 (A), and the base 1 (A-4) has a plug-in hole 2 (A-10); The second locking member (B) comprises a second pin portion (B-2), one end of the second pin portion (B-2) has a second base (B-5), and the other end has a second plug-in leg (B-3) extending along the length direction, the free end of the second plug-in leg (B-3) has a second card pin (B-4), the second pin portion (B-2), the second plug-in leg (B-3) and the second card pin (B-4) constitute a card pin on the second locking member (B), and the second base (B-5) has a first plug-in hole (B-1); When the grinding wheel (1) and the grinding wheel holder (2) are assembled in place through the first connecting part and the second connecting part, the clamping pin 1 (A-3) on the locking member 1 (A) passes through the insertion hole 2 (2-1a) and the plug hole 1 (B-1) on the insertion head (2-1) in sequence and is clamped on the outer edge surface of the base 2 (B-5), the pin 1 (A-1) is inserted into the insertion hole 2 (2-1a), the plug leg 1 (A-2) is inserted into the plug hole 1 (B-1), the clamping pin 2 (B-4) on the locking member 2 (B) passes through the plug hole 2 (A-10) and is clamped on the outer edge surface of the base 1 (A-4), and the plug leg 1 (A-2) is inserted into the plug hole 2 (A-10).

9. The grinding subassembly that is easy to install and disassemble as claimed in claim 8, characterized in that: The end face of the pin part 1 (A-1) facing away from the base 1 (A-4) also has a step surface 1 (A-5) located at the lower side of the plug-in leg 1 (A-2), and the end face of the pin part 2 (B-2) facing away from the base 2 (B-5) also has a step surface 2 (B-6) located at the upper side of the plug-in leg 2 (B-3). When the grinder (1) and the grinder holder (2) are assembled in place through the first connecting part and the second connecting part, the step surface 1 (A-5) abuts against the inner end face of the base 2 (B-5), and the step surface 2 (B-6) abuts against the inner end face of the base 1 (A-4).

10. The grinding subassembly that is easy to install and disassemble as claimed in claim 9, characterized in that: The vertical surface of one side of the plug-in leg (A-2) has a notch groove (A-7), the vertical surface of one side of the plug-in leg (B-3) has a notch groove (B-7), the vertical inner wall surface of one side of the plug-in hole (A-10) and the vertical inner wall surface of one side of the plug-in hole (B-1) are both configured as convex arc surface structures (C), and when the grinding wheel (1) and the grinding wheel holder (2) are assembled in place through the first connecting part and the second connecting part, the notch groove (A-7) and the notch groove (B-7) are both engaged with the corresponding convex arc surface structures (C); The first card pin (A-3) and the second card pin (B-4) are both provided with a through hole (A-8) perpendicular to the plane where the first pin (A-1) or the second pin (B-2) is located.

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