Grinding sub-assembly with good anti-falling performance
By designing a locking mechanism to lock the plug block in the vertical through slot, the problem of existing tread sweepers detaching under vibration is solved, the replacement of grinding discs is simplified and efficiency is improved, and it is suitable for the narrow space of train tracks.
Patent Information
- Application Number
- CN202520100033.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The existing anti-detachment device of the tread sweeper is prone to failure under severe vibration, causing the grinding disc to detach from the grinding disc holder, which poses a safety hazard. Furthermore, replacing the grinding disc is difficult and inefficient.
A grinding element assembly with good anti-detachment performance was designed. A locking mechanism is used to close and embed the stop block inside the vertical through slot, locking the plug block. The locking mechanism enables flexible switching of the stop block, simplifying the replacement process.
It effectively prevents the stop block from detaching under severe vibration conditions, reduces the difficulty and operation time of replacing the grinding wheel, improves replacement efficiency, is suitable for confined spaces, and is highly practical.
Smart Images
Figure CN223590691U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to train track tread cleaning equipment technical field, concretely relates to a grinding subassembly of good anti -drop performance. BACKGROUND
[0002] The tread cleaner is usually installed on the rail vehicle corresponding to the wheel of the rail vehicle, and the friction block (also called grinding sub) installed thereon is controllably used to act on the wheel tread, thereby generating the tread cleaning effect on the vehicle tread. The friction effect can keep the relative good adhesion between the wheel and the track, which is beneficial to avoid the problem of wheel slip or sliding due to insufficient adhesion between the wheel and the track during the starting, deceleration or braking process of the rail vehicle.
[0003] The existing tread cleaner has the structure including the grinding sub and the grinding sub holder, and the anti -drop device composed of the hook tongue insertion hole pin joint assembly is locked after the grinding sub and the grinding sub holder are connected. Because the working condition of the tread cleaner is relatively bad, the hook tongue on the anti -drop device will be separated from the anti -drop position under severe vibration, which will cause the anti -drop device to fail, thereby causing the grinding sub to separate from the grinding sub holder, which is easy to cause safety accidents. Therefore, the utility model provides a grinding sub assembly with good anti -drop performance to solve the above technical problems. UTILITY MODEL CONTENTS
[0004] The utility model discloses a grinding subassembly with good anti -drop performance, which can overcome the defects in the prior art. After the grinding sub and the grinding sub holder are assembled in place, the locking mechanism makes the stopper close and embed in the vertical through groove to lock the insertion block. Therefore, under the severe vibration condition during train operation, the phenomenon of the stopper shaking severely and separating from the vertical through groove can be effectively avoided, and the hidden danger of the grinding sub separating from the grinding sub holder is eliminated. When replacing the grinding sub, only need to use the locking mechanism to make the stopper turn up and be located above the upper end of the vertical through groove in the unlocking state, then take down the old grinding sub from the grinding sub holder and replace it with a new one, and then use the locking mechanism to adjust the stopper to the closed embedded state in the vertical through groove to lock the insertion block. The replacement difficulty and operation time of the grinding sub are significantly reduced, which helps to greatly improve the replacement efficiency of the grinding sub on the tread cleaner. The overall structure design is ingenious and reasonable, which is suitable for narrow locomotive track space, has high preparation application implementation feasibility and strong practicability.
[0005] In order to achieve the above object, the technical scheme of the utility model is designed as a grinding subassembly with good anti-falling performance, which comprises a grinding sub and a grinding sub holder, the back of the grinding sub is provided with a plug-in block, the lower side of the grinding sub holder is provided with a plug-in slot with a lateral opening, the plug-in block can be plug-in installed in the plug-in slot through the lateral opening of the plug-in slot, the grinding sub holder is provided with a vertical through slot which is in communication with the lateral opening end of the plug-in slot, the vertical through slot is internally provided with a stop block which can be turned up and opened, the stop block is pivotally connected to the grinding sub holder, and a locking mechanism is arranged between the stop block and the grinding sub holder, the locking mechanism makes the stop block have a locking state of being closed and embedded in the vertical through slot to lock the plug-in block and an unlocking state of being turned up above the upper end of the vertical through slot.
[0006] The grinding subassembly with good anti-falling performance of the utility model, after the grinding sub and the grinding sub holder are assembled in place, the locking mechanism makes the stop block closed and embedded in the vertical through slot to lock the plug-in block, so that the phenomenon that the stop block is violently shaken and falls out of the vertical through slot is effectively avoided under the severe vibration working condition in the process of train operation, and the hidden danger that the grinding sub is separated from the grinding sub holder is eliminated; when the grinding sub is replaced, only the locking mechanism is used to make the stop block turned up above the upper end of the vertical through slot to be in the unlocking state, then the old grinding sub is taken off from the grinding sub holder and replaced with a new grinding sub, and then the locking mechanism is used to adjust the stop block to be closed and embedded in the vertical through slot to be in the locking state of locking the plug-in block, so that the replacement difficulty and operation time of the grinding sub are significantly reduced, and the replacement efficiency of the grinding sub on the tread cleaner is greatly improved, the overall structure is clever and reasonable, is applicable to narrow locomotive track space, has high preparation application implementation feasibility and strong practicability.
[0007] Preferably, the block has a through hole two inside, the through hole two is internally mounted with a bolt rod, the tail end of the bolt rod protrudes from the block and is provided with a limiting sleeve, and the bolt rod and the block are further provided with an elastic member for keeping the bolt rod in a moving trend away from the limiting sleeve, the bolt rod, the elastic member and the limiting sleeve constitute the locking mechanism; the rear side wall of the vertical through groove is provided with a plug-in hole, when the locking mechanism makes the block in a locked state, one end of the bolt rod away from the limiting sleeve protrudes from the through hole two and is plugged into the plug-in hole, and when the locking mechanism makes the block in an unlocked state, one end of the bolt rod away from the limiting sleeve protrudes from the through hole two and is overlapped on the end face of the rear side wall of the vertical through groove. The locking mechanism is designed ingeniously and reasonably, and during the replacement of the grinding element, only the limiting sleeve at the tail end of the bolt rod needs to be pulled to the side away from the block to make one end of the bolt rod away from the limiting sleeve retract into the through hole two of the block, so that the block can be easily switched between the two states of being inside the vertical through groove and above the upper end of the vertical through groove, and the bolt rod is released after adjustment, so that the elastic member can drive the bolt rod to reset and limit the block in the locked state or the unlocked state, which has strong operability and is also applicable in a small space of a track position.
[0008] Further preferably, one end of the bolt rod away from the limiting sleeve has an annular circular truncated cone and a plug-in head, the plug-in head is matched with the plug-in hole, the upper end face of the grinding element holder has a protrusion above the lateral opening end of the plug-in groove, the vertical through groove is opened on the protrusion, a group of pin holes are correspondingly provided on the two arm plates on both sides of the vertical through groove, a pin shaft is inserted through the pin holes, the block has a through hole one vertically arranged with the through hole two, the block is sleeved on the pin shaft through the through hole one, the pin shaft is provided with a through hole three radially penetrating the axial center line and penetrating the through hole two of the block, the bolt rod penetrates the through hole three on the pin shaft, and the elastic member is a spring sleeved on the bolt rod, one end of the spring abuts against the annular circular truncated cone, and the other end abuts against the pin shaft. The block is sleeved on the pin shaft inserted in the vertical through groove through the through hole one, the elastic member is a spring, which is easily available in the market, and the bolt rod is movably installed on the block and the pin shaft through the spring, the whole installation is simple, and ensures that the grinding element assembly with good anti-falling performance of the utility model can be smoothly prepared and implemented.
[0009] Further preferred technical solutions also have, the block downside has corresponding below the slope surface structure of the through hole, the block is to the end face of the limiting sleeve has a group of corresponding ear plate located on both sides, a group of the ear plate and the block is to the end face of the limiting sleeve surrounds and forms the rotation stop groove, the limiting sleeve is to the end of the block has the rotation stop block embedded in the rotation stop groove, the limiting sleeve is far from the end of the block has the annular eaves body extending to the outer peripheral side, the high end of the slope surface structure is adjacent to the lower end of the rotation stop groove. The locking mechanism makes the block switch between the locking and unlocking states, the slope surface structure plays a role in avoiding, ensuring the smoothness of the block switching between the two states; the rotation stop block of the limiting sleeve towards the block is embedded in the rotation stop groove on the block, thereby effectively avoiding the rotation of the bolt rod under severe vibration conditions, ensuring the installation firmness of the limiting sleeve on the bolt rod, and further ensuring the firmness of the locking mechanism when the block is closed and embedded in the vertical slot.
[0010] Further preferred technical solutions also have, the vertical slot rear side wall upper end face has a boss extending upward, when the locking mechanism makes the block in the unlocked state, the end of the bolt rod away from the limiting sleeve protrudes from the through hole two and is lapped on the upper end face of the boss. During the replacement of the abrasive, only the limiting sleeve at the tail end of the bolt rod needs to be held and dragged to the side away from the block to make the end of the bolt rod away from the limiting sleeve retract into the through hole two of the block, then the block is turned up to above the upper end of the vertical slot, and the bolt rod is released, so that the plug-in head of the bolt rod is lapped on the upper end face of the boss, which significantly improves the lifting height of the block, so that the lower end of the block in the unlocked state completely avoids the external space of the lateral opening end of the plug-in slot, ensuring the smoothness when the old abrasive is removed from the abrasive holder or a new abrasive is installed.
[0011] Further preferred technical solutions also have, the plug-in hole located on the abrasive holder and the through hole three located on the pin shaft are both provided in a waist-shaped hole structure with the long axis direction consistent with the plug-in directions of the plug-in block and the plug-in slot two. The end of the bolt rod protruding from the block is plugged into the plug-in hole of the waist-shaped hole structure on the abrasive holder, and the other end protruding from the block is plugged into the through hole three of the waist-shaped hole structure on the pin shaft, so that when the abrasive and the abrasive holder relatively reciprocate under severe vibration conditions, both ends of the bolt rod have a certain activity space, thereby effectively avoiding the breakage or deformation of the bolt rod, ensuring the safety of the abrasive assembly in use of the utility model, and the smoothness of the block switching between the locking and unlocking states.
[0012] Further preferred technical solutions also have, a group of the pin hole inner circumferential wall surface is equipped with annular groove, the pin shaft is inserted in a group of the pin hole inside, both ends are respectively through a embedded in the corresponding annular groove inside The stop ring is axially limited. The pin shaft is inserted and installed in a group of the pin hole inside two arm plates, through the embedded in the corresponding annular groove inside The stop ring plays the role of axial limiting, effectively avoid the axial movement of the pin shaft in a group of the pin hole, make the bolt rod always keep in the middle of the vertical through groove, to ensure the smoothness of the block between the locking and unlocking state Switch, the bolt rod is taken down from the grinder holder and replaced with a new one, then the locking mechanism is used to adjust the block to be closed and embedded in the vertical through groove to lock the plug-in block The locking state can be achieved, which significantly reduces the replacement difficulty and operation time of the grinder, thereby helping to greatly improve the replacement efficiency of the grinder on the tread cleaner, and the overall structure is clever and reasonable, which is applicable in narrow locomotive track space, and has high preparation application feasibility and strong practicality.
[0013] Further preferred technical solutions also have, the inner circumferential wall surface of the limiting sleeve is provided with an internal thread structure, the tail end of the bolt rod is provided with a screw rod section, and the limiting sleeve is screwed on the screw rod section of the bolt rod. The limiting sleeve is screwed on the screw rod section of the bolt rod, the installation method is simple, and the good anti-dropping performance grinding subassembly of the utility model can be quickly assembled and processed.
[0014] Further preferred technical solutions also have, the tail end of the plug-in rod is also provided with a through hole four penetrating the axial center line thereof in the radial direction, and an open pin is inserted through the through hole four and located away from the block on one side of the limiting sleeve. The open pin plays a retreating role on the limiting sleeve, thereby further improving the installation stability of the limiting sleeve at the tail end of the plug-in rod.
[0015] Further preferred technical solutions also have, the plug-in groove is a dovetail groove structure, the plug-in block is a wedge-shaped block structure matched with the plug-in groove, and the upper end face of the plug-in block has a weight-reducing groove. The plug-in block and the plug-in groove are designed as a matched dovetail groove structure, thereby ensuring the stability of the grinder when the grinder is installed on the grinder holder; the upper end face of the plug-in block has a weight-reducing groove, thereby ensuring good lightness of the grinder.
[0016] The utility model has the advantages and beneficial effects that:
[0017] 1. The anti-dropping performance good grinder assembly of the utility model, after the grinder and the grinder holder are assembled in place, the locking mechanism makes the block closed and embedded in the vertical through groove to lock the plug-in block, thereby effectively avoiding the phenomenon that the block shakes violently and comes out of the vertical through groove under the severe vibration condition during train operation, and eliminating the hidden danger that the grinder comes off the grinder holder; when the grinder is replaced, only the locking mechanism is used to make the block upwardly turned to be in an unlocked state above the upper end port of the vertical through groove, then the old grinder is taken off from the grinder holder and replaced with a new one, and then the locking mechanism is used to adjust the block to be closed and embedded in the vertical through groove to lock the plug-in block in a locked state, thereby significantly reducing the replacement difficulty and operation time of the grinder, thereby helping to greatly improve the replacement efficiency of the grinder on the tread cleaner; the overall structure is clever and reasonable, and is applicable in narrow locomotive track space, and has high preparation application feasibility and strong practicality.
[0018] 2、The locking mechanism is designed ingeniously and reasonably, and during replacement of the abrasive, only the limiting sleeve at the tail end of the bolt rod needs to be held and dragged to the side away from the block to make the end of the bolt rod away from the limiting sleeve to be recessed into the inside of the through hole two of the block, so that the block can be flexibly switched between the inside of the vertical through groove and the upper side of the vertical through groove, and after adjustment, the bolt rod is released, the elastic member drives the bolt rod to reset and limits the block in the locked state or the unlocked state, and the operability is strong, and even in a small space of a track position, it is also applicable.
[0019] 3、The block is sleeved on the pin shaft penetrating and located in the vertical through groove through the through hole one, the elastic member is a spring, which is easily available on the market, and the bolt rod is movably installed on the block and the pin shaft through the spring, the overall installation mode is simple, and the abrasive assembly with good anti-falling performance of the utility model can be smoothly prepared and implemented.
[0020] 4、The slope structure plays a avoiding role when the block is switched between the locked and unlocked states, so as to ensure the smoothness of the block when being switched between the two states; the rotation stopping block at the end of the limiting sleeve towards the block is embedded in the rotation stopping groove on the block, so as to effectively avoid the rotation of the bolt rod under severe vibration conditions, ensure the installation firmness of the limiting sleeve on the bolt rod, and further ensure the firmness of the locking mechanism when the block is closed and embedded and locked in the vertical through groove.
[0021] 5、The upper end face of the rear side wall of the vertical through groove has a boss extending upwards, when the block is in the unlocked state by the locking mechanism, the end of the bolt rod away from the limiting sleeve protrudes from the through hole two and is lapped on the upper end face of the boss. During replacement of the abrasive, only the limiting sleeve at the tail end of the bolt rod needs to be held and dragged to the side away from the block to make the end of the bolt rod away from the limiting sleeve to be recessed into the inside of the through hole two of the block, and then the block is turned up to the upper end port of the vertical through groove, and the bolt rod is released, so that the plug-in head of the bolt rod is lapped on the upper end face of the boss, the lifting height of the block is significantly improved, so that the lower end of the block in the unlocked state completely avoids the outside space of the lateral opening end of the plug-in groove, and the smoothness during dismounting of the old abrasive from the abrasive holder or mounting of a new abrasive is ensured.
[0022] 6. The insertion hole on the grinding wheel support and the through hole three on the pin are both designed as oblong holes with their long axis aligned with the insertion direction of the insertion block and the insertion slot. One end of the pin protruding from the stop block is inserted into the insertion hole in the oblong hole structure on the grinding wheel support, and the other end protruding from the stop block is inserted into the through hole three in the oblong hole structure on the pin. This ensures that both ends of the pin have sufficient space to move when the grinding wheel and the grinding wheel support reciprocate under severe vibration, effectively preventing the pin from breaking or deforming. This ensures the safety of the grinding wheel assembly during use and the smoothness of the stop block switching between locked and unlocked states.
[0023] 7. Each of the aforementioned pin holes has an annular groove on its inner circumferential wall. When the pin is inserted into the pin hole, both ends are axially limited by a retaining ring fitted into the corresponding annular groove. When the pin is inserted into the pin hole on the two arm plates, the retaining ring fitted into the corresponding annular groove provides axial limitation, effectively preventing the pin from axially moving within the pin hole. This ensures that the pin remains in the middle of the vertical groove, thus ensuring smooth switching between the locked and unlocked states of the stop block. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of a grinding element assembly with good anti-detachment performance from the left front side view of this utility model;
[0025] Figure 2 This is a schematic diagram showing the disassembled structure of a grinding element assembly with good anti-detachment performance according to this utility model;
[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the grinding wheel;
[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the grinding wheel holder;
[0028] Figure 5 It is a disassembled diagram of the stop block, pin, locating sleeve, and cotter pin;
[0029] Figure 6 This is a diagram showing the disassembled state of the pin and spring;
[0030] Figure 7 This is a top view (partial cross-section) of a grinding element assembly with good anti-detachment performance according to this utility model;
[0031] Figure 8 yes Figure 7 A magnified view of a section at point H in the middle;
[0032] Figure 9It is the longitudinal section view of the good anti-dropping performance grinding subassembly along the axial center line of the bolt rod.
[0033] Figure 10 It is the longitudinal section view of the good anti-dropping performance grinding subassembly along the axial center line of the bolt rod.
[0034] In the figure: 1, grinding sub; 2, grinding sub holder; 3, stop block; 4, pin shaft; 5, check ring; 6, bolt rod; 7, spring; 8, limit sleeve; 9, split pin; 1-1, back plate; 1-2, plug-in block; 1-3, friction block; 1-4, lightening groove; 2-1, plug-in slot; 2-2, protruding block; 2-2a, vertical through slot; 2-2b, arm plate; 2-2c, pin hole; 2-2c-1, annular recess; 2-2d, plug-in hole; 2-2e, boss; 2-3, ear plate; 2-3a, mounting hole; 3-1, slope structure; 3-2, through hole one; 3-3, through hole two; 3-4, ear plate; 3-5, rotation stop groove; 4-1, through hole three; 6-1, annular circular table; 6-2, screw segment; 6-3, plug-in head; 6-4, through hole four; 8-1, annular eaves body; 8-2, rotation stop block. DETAILED DESCRIPTION
[0035] The specific embodiments of the utility model are further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.
[0036] EXAMPLE
[0037] As Figures 1-10 shown, the utility model is a kind of good anti-dropping performance grinding subassembly, including grinding sub 1 and grinding sub holder 2, the grinding sub 1 include back plate 1-1, plug-in block 1-2 and friction block 1-3, the friction block 1-3 is fixed on the lower side of the back plate 1-1, the plug-in block 1-2 is fixed on the upper side of the back plate 1-1, the lower side of the grinding sub holder 2 has a one side lateral opening plug-in slot 2-1, the plug-in block 1-2 can be inserted and installed in plug-in slot 2-1 inside from the lateral opening of plug-in slot 2-1, the upper of the grinding sub holder 2 has vertical through slot 2-2a that is connected with the lateral opening end of plug-in slot 2-1, the vertical through slot 2-2a inside is installed with the stop block 3 that can be opened by turning up, the stop block 3 is pivoted on grinding sub holder 2, and locking mechanism is arranged between stop block 3 and grinding sub holder 2, the locking mechanism makes stop block 3 have locking state of being closed and embedded in vertical through slot 2-2a to lock plug-in block 1-2 and unlocking state of being turned up and located above the upper end of vertical through slot 2-2a.
[0038] Preferably, the block 3 has a through hole 3-3 inside, a latch rod 6 is installed inside the through hole 3-3, the tail end of the latch rod 6 protrudes from the block 3 and is provided with a limiting sleeve 8, and an elastic member is further arranged between the latch rod 6 and the block 3 to keep the latch rod 6 moving away from the limiting sleeve 8, the latch rod 6, the elastic member and the limiting sleeve 8 form the locking mechanism; the rear side wall of the vertical through slot 2-2a is provided with a plug-in hole 2-2d, when the locking mechanism makes the block 3 in the locked state, the end of the latch rod 6 away from the limiting sleeve 8 protrudes from the through hole 3-3 and is plugged into the plug-in hole 2-2d, and when the locking mechanism makes the block 3 in the unlocked state, the end of the latch rod 6 away from the limiting sleeve 8 protrudes from the through hole 3-3 and is overlapped on the upper end surface of the rear side wall of the vertical through slot 2-2a.
[0039] Further preferably, the end of the latch rod 6 away from the limiting sleeve 8 has an annular circular truncated cone 6-1 and a plug-in head 6-3, the plug-in head 6-3 is matched with the plug-in hole 2-2d, the upper end surface of the grinder holder 2 has a protrusion 2-2 above the lateral opening end of the plug-in slot 2-1, the vertical through slot 2-2a is opened on the protrusion 2-2, and a group of pin holes 2-2c are correspondingly arranged on the two arm plates 2-2b on both sides of the vertical through slot 2-2a, a pin shaft 4 is inserted into the pin holes 2-2c, the block 3 has a through hole 3-2 arranged perpendicularly to the through hole 3-3, the block 3 is sleeved on the pin shaft 4 through the through hole 3-2, the pin shaft 4 is provided with a through hole 4-1 radially penetrating the axial center line and the through hole 3-3 of the block 3, the latch rod 6 penetrates the through hole 4-1 of the pin shaft 4, and the elastic member is a spring 7 sleeved on the latch rod 6, one end of the spring 7 abuts against the annular circular truncated cone 6-1, and the other end abuts against the pin shaft 4.
[0040] Further preferably, the lower side of the block 3 has a slope structure 3-1 corresponding to the lower side of the through hole 3-2, the end of the block 3 towards the limiting sleeve 8 has a group of ear plates 3-4 corresponding to the two sides, a group of the ear plates 3-4 and the end of the block 3 towards the limiting sleeve 8 form a rotation stopping groove 3-5, the end of the limiting sleeve 8 towards the block 3 has a rotation stopping block 8-2 embedded in the rotation stopping groove 3-5, the end of the limiting sleeve 8 away from the block 3 has an annular eaves 8-1 extending to the outer peripheral side, and the high end of the slope structure 3-1 is adjacent to the lower end of the rotation stopping groove 3-5.
[0041] Further preferably, the rear side wall of the vertical through slot 2-2a is provided with a protrusion 2-2e extending upward, and when the locking mechanism is in the unlocked state, the end of the bolt rod 6 protruding from the limiting sleeve 8 is lapped on the upper end surface of the protrusion 2-2e.
[0042] Further preferably, the plug-in hole 2-2d on the grinding sub holder 2 and the through hole three 4-1 on the pin shaft 4 are both provided with a waist-shaped hole structure with the long axis direction consistent with the plug-in direction of the plug-in block 1-2 and the plug-in slot 2-1.
[0043] Further preferably, the inner circumferential wall surface of each of the pin holes 2-2c is provided with an annular groove 2-2c-1, and when the pin shaft 4 is inserted into the pin holes 2-2c, the two ends are respectively limited in the axial direction by a stop ring 5 embedded in the corresponding annular groove 2-2c-1.
[0044] Preferably, the inner circumferential wall surface of the limiting sleeve 8 is provided with an internal thread structure, the tail end of the bolt rod 6 is provided with a screw segment 6-2, and the limiting sleeve 8 is screwed onto the screw segment 6-2 of the bolt rod 6.
[0045] Preferably, the tail end of the bolt rod 6 is further provided with a through hole four 6-4 penetrating the axial center line in the radial direction, and the through hole four 6-4 is inserted with a cotter pin 9 located on the side of the limiting sleeve 8 away from the stop block 3.
[0046] Further preferably, the plug-in slot 2-1 is a dovetail slot structure, the plug-in block 1-2 is a wedge-shaped block structure matched with the plug-in slot 2-1, and the upper end surface of the plug-in block 1-2 is provided with a weight-reducing groove 1-4.
[0047] Further preferably, the upper side of the grinding sub holder 2 is provided with a pair of ear plates 2-3, the ear plates 2-3 are provided with mounting holes 2-3a, and the projection of the ear plates 2-3 on the upper side of the grinding sub holder 2 is consistent with the relative sliding plug-in direction between the plug-in block 1-2 and the plug-in slot 2-1.
[0048] The use principle of the grinding sub assembly with good anti-dropping performance is as follows:
[0049] When the grinding sub 1 is replaced, the limiting sleeve 8 at the tail end of the bolt rod 6 is pulled to the side away from the stop block 3, so that the end of the bolt rod 6 away from the limiting sleeve 8 is inserted into the through hole two 3-3 of the stop block 3, then the stop block 3 is turned up to the upper end of the vertical through slot 2-2a, and the bolt rod 6 is released, then the plug-in head 6-3 on the bolt rod 6 is lapped on the upper end surface of the protrusion 2-2e to be in the unlocked state (see Figure 10); the old grinder 1 is taken off from the grinder holder 2, the new grinder 1 is inserted and installed in the insertion slot 2-1 on the grinder holder 2 through the insertion block 1-2, the limiting sleeve 8 at the tail end of the insertion pin 6 is held and dragged to the side away from the stop block 3, the end of the insertion pin 6 away from the limiting sleeve 8 is embedded in the through hole two 3-3 of the stop block 3, then the stop block 3 is turned down and closed and embedded in the vertical through slot 2-2a, the insertion pin 6 is released, and the insertion head 6-3 on the insertion pin 6 is re-inserted in the insertion hole 2-2d on the rear wall of the vertical through slot 2-2a and is in a locked state (see the vertical cross section of the grinder holder 2 in FIG. 6), and the replacement of the grinder 1 is completed. Figure 9
[0050] The grinder assembly with good anti-falling performance of the utility model, after the grinder and the grinder holder are assembled in place, the locking mechanism makes the stop block closed and embedded in the vertical through slot to lock the insertion block, so that the phenomenon of the stop block shaking out of the vertical through slot is effectively avoided under the severe vibration condition in the train operation process, and the hidden danger of the grinder falling off the grinder holder is eliminated; when the grinder is replaced, only the locking mechanism is used to turn the stop block upward above the upper end of the vertical through slot to be in an unlocked state, then the old grinder is taken off from the grinder holder and replaced with a new grinder, and then the locking mechanism is used to adjust the stop block to be closed and embedded in the vertical through slot to lock the insertion block in a locked state, so that the replacement difficulty and operation time of the grinder are significantly reduced, and the replacement efficiency of the grinder on the tread cleaner is greatly improved, the overall structure is clever and reasonable, is applicable to the narrow locomotive track space, has high preparation application implementation feasibility and strong practicability.
[0051] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, several improvements and refinements can be made without departing from the technical principles of the utility model, and these improvements and refinements should also be regarded as the protection range of the utility model.
Claims
1. A grinding wheel assembly with good anti-detachment performance, comprising a grinding wheel (1) and a grinding wheel holder (2), wherein the back of the grinding wheel (1) has a connecting block (1-2), and the lower side of the grinding wheel holder (2) has a connecting groove (2-1) with a lateral opening on one side, wherein the connecting block (1-2) can be inserted into the connecting groove (2-1) through the lateral opening of the connecting groove (2-1), characterized in that, The grinding support (2) has a vertical through groove (2-2a) that communicates with the lateral opening end of the insertion groove (2-1). A stop block (3) that can be flipped up and opened is installed inside the vertical through groove (2-2a). The stop block (3) is pivotally connected to the grinding support (2), and a locking mechanism is provided between the stop block (3) and the grinding support (2). The locking mechanism enables the stop block (3) to have a locked state in which it is closed and embedded inside the vertical through groove (2-2a) to lock the insertion block (1-2), and an unlocked state in which it is flipped up and located above the upper port of the vertical through groove (2-2a).
2. The grinding sub-assembly with good anti-detachment performance as described in claim 1, characterized in that, The stop block (3) has a through hole two (3-3) inside, and a pin rod (6) is installed inside the through hole two (3-3). The tail end of the pin rod (6) protrudes from the stop block (3) and is provided with a limiting sleeve (8). An elastic element is also provided between the pin rod (6) and the stop block (3) to keep the pin rod (6) moving away from the limiting sleeve (8). The pin rod (6), the elastic element and the limiting sleeve (8) constitute the locking mechanism. The vertical through hole... The rear side wall of the groove (2-2a) is provided with a insertion hole (2-2d). When the locking mechanism puts the stop (3) in the locked state, the end of the pin (6) away from the limiting sleeve (8) protrudes out of the second through hole (3-3) and is inserted into the insertion hole (2-2d). When the locking mechanism puts the stop (3) in the unlocked state, the end of the pin (6) away from the limiting sleeve (8) protrudes out of the second through hole (3-3) and overlaps the upper end surface of the rear side wall of the vertical through groove (2-2a).
3. The grinding component with good anti-detachment performance as described in claim 2, characterized in that, The end of the pin (6) away from the limiting sleeve (8) has an annular frustum (6-1) and a connector (6-3). The connector (6-3) is adapted to the insertion hole (2-2d). The upper surface of the grinding support (2) has a protrusion (2-2) located above the lateral opening end of the insertion groove (2-1). The vertical through groove (2-2a) is opened on the protrusion (2-2), and a set of pin holes (2-2c) are correspondingly provided on the two arm plates (2-2b) on both sides of the vertical through groove (2-2a). A pin (4) is inserted through the pin hole (2-2c). The stop block (3) has a through hole (3-2) perpendicular to the through hole (3-3). The stop block (3) is sleeved on the pin (4) through the through hole (3-2). The pin (4) has a through hole (4-1) that radially passes through its axial center line and communicates with the through hole (3-3) on the stop block (3). The pin rod (6) passes through the through hole (4-1) on the pin rod (4). The elastic element is a spring (7) sleeved on the pin rod (6). One end of the spring (7) abuts against the annular frustum (6-1), and the other end abuts against the pin (4).
4. The grinding element assembly with good anti-detachment performance as described in claim 3, characterized in that, The lower side of the stop block (3) has a slope structure (3-1) corresponding to the bottom of the through hole (3-2). The end face of the stop block (3) facing the limiting sleeve (8) has a set of ear plates (3-4) corresponding to the two sides. The set of ear plates (3-4) and the end face of the stop block (3) facing the limiting sleeve (8) form an anti-rotation groove (3-5). The end of the limiting sleeve (8) facing the stop block (3) has an anti-rotation block (8-2) embedded in the anti-rotation groove (3-5). The end of the limiting sleeve (8) away from the stop block (3) has an annular eave (8-1) extending outward. The high end of the slope structure (3-1) is adjacent to the lower port of the anti-rotation groove (3-5).
5. The grinding element assembly with good anti-detachment performance as described in claim 4, characterized in that, The upper end face of the rear side wall of the vertical through groove (2-2a) has an upwardly extending boss (2-2e). When the locking mechanism puts the stop (3) in the unlocked state, the end of the pin rod (6) away from the limiting sleeve (8) protrudes from the through hole (3-3) and overlaps the upper end face of the boss (2-2e).
6. The grinding element assembly with good anti-detachment performance as described in claim 5, characterized in that, The insertion hole (2-2d) on the grinding support (2) and the through hole (4-1) on the pin (4) are both designed as waist-shaped holes with the long axis direction consistent with the insertion direction of the insertion block (1-2) and the insertion groove (2-1).
7. The grinding element assembly with good anti-detachment performance as described in claim 3, characterized in that, Each of the pin holes (2-2c) has an annular groove (2-2c-1) on its inner circumferential wall. When the pin (4) passes through the pin hole (2-2c), both ends are axially limited by a retaining ring (5) embedded in the corresponding annular groove (2-2c-1).
8. The grinding sub-assembly with good anti-detachment performance as described in claim 2, characterized in that, The inner circumferential wall of the limiting sleeve (8) is provided with an internal thread structure, and the tail end of the pin rod (6) is provided with a screw section (6-2). The limiting sleeve (8) is screwed onto the screw section (6-2) of the pin rod (6).
9. The grinding sub-assembly with good anti-detachment performance as described in claim 2, characterized in that, The tail end of the pin rod (6) is also provided with a through hole four (6-4) that radially penetrates its axial center line. A cotter pin (9) that fits into the through hole four (6-4) on the side of the limiting sleeve (8) away from the stop block (3) is inserted inside.
10. The grinding component with good anti-detachment performance as described in any one of claims 1 to 9, characterized in that, The insertion slot (2-1) is a dovetail groove structure, the insertion block (1-2) is a wedge-shaped block structure adapted to the insertion slot (2-1), and the upper end face of the insertion block (1-2) has a weight-reducing groove (1-4).