Grinding sub-assembly with good anti-falling performance
By designing a grinding sub-assembly with good anti-detachment performance, using a locking mechanism to ensure that the stopper does not disengage under severe vibration, and simplifying the grinding sub-replacement process, the grinding sub-release and replacement problem of grinding sub-detachment and replacement in existing tread sweepers is solved, and safety and replacement efficiency are improved.
Patent Information
- Application Number
- CN202510065820.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-03-07
AI Technical Summary
The existing tread cleaner can easily cause the anti-detachment device to fail under severe vibration conditions, and the grinder will break away from the grinder support, causing safety hazards, and it is difficult to replace the grinder and low efficiency.
A grinding sub-assembly with good anti-detachment performance is designed, and the locking mechanism is used to close and fit the stop inside the vertical through-groove to lock the plug to ensure that the stop is not disengaged under severe vibration, and provides flexible locking and unlocking state switching, simplifying the grinding sub-replacement process.
It effectively avoids the phenomenon of the grinder leaving the grinder holder under violent vibration, reduces the difficulty and time of replacing the grinder, improves the efficiency of replacing the grinder on the tread cleaner, and is suitable in a narrow space.
Smart Images
Figure CN119568075A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of train track tread cleaning equipment, and in particular to a grinding subassembly with good anti-slip performance. Background Art
[0002] The tread cleaner is usually installed on the rail vehicle corresponding to the wheel of the rail vehicle. It can controllably use the friction block (or "grinder") installed on it to rub on the wheel tread, thereby producing a tread cleaning effect on the vehicle tread. This friction can keep the wheel and the track in a relatively good adhesion state, which is helpful to avoid the problem of idling or sliding of the rail vehicle due to insufficient adhesion between the wheel and the track during starting, deceleration or braking.
[0003] The structure of the tread cleaner of the prior art includes a grinder and a grinder holder. After the grinder and the grinder holder are connected, they are locked by an anti-slip device composed of a hook tongue plug-in pin assembly. Due to the relatively poor working conditions of the tread cleaner, under severe vibration, the hook tongue on the anti-slip device may be separated from the anti-slip position, causing the anti-slip device to fail, thereby causing the grinder to be separated from the grinder holder, which is very likely to cause a safety accident. To this end, the present invention proposes a grinder assembly with good anti-slip performance, in order to solve the above technical problems. Summary of the invention
[0004] The object of the present invention is to overcome the defects existing in the prior art and provide a grinding sub-assembly with good anti-slip performance. After the grinding sub-assembly and the grinding sub-assembly holder are assembled in place, the locking mechanism closes the stopper and embeds it in the vertical through groove to lock the plug-in block, thereby effectively preventing the stopper from shaking violently and slipping out of the vertical through groove under the severe vibration condition during the operation of the train, and eliminating the hidden danger of the grinding sub-assembly slipping out of the grinding sub-assembly holder; when replacing the grinding sub-assembly, it is only necessary to use the locking mechanism to flip the stopper upward and position it above the upper end of the vertical through groove to be in an unlocked state, then remove the old grinding sub-assembly from the grinding sub-assembly holder and replace it with a new grinding sub-assembly, and then use the locking mechanism to adjust the stopper to be closed and embedded in the vertical through groove to lock the plug-in block in a locked state, which significantly reduces the difficulty and operation time of replacing the grinding sub-assembly, thereby helping to greatly improve the replacement efficiency of the grinding sub-assembly on the tread cleaner; the overall structural design is ingenious and reasonable, and is also applicable to narrow locomotive track space, and the preparation and application implementation feasibility is high and the practicability is strong.
[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is to design a grinding sub-assembly with good anti-slip performance, including a grinding sub-assembly and a grinding sub-holder, the back of the grinding sub-assembly is provided with a plug-in block, the lower side of the grinding sub-assembly is provided with a plug-in slot with a lateral opening on one side, the plug-in block can be plugged and installed in the plug-in slot from the lateral opening of the plug-in slot, the grinding sub-assembly is provided with a vertical through slot that is connected to the lateral opening end of the plug-in slot, a stopper that can be flipped open upward is installed in the vertical through slot, the stopper is pivotally connected to the grinding sub-assembly, and a locking mechanism is provided between the stopper and the grinding sub-assembly, the locking mechanism enables the stopper to have a locked state in which it is closed and embedded in the vertical through slot to lock the plug-in block, and an unlocked state in which it is flipped upward and located above the upper end of the vertical through slot.
[0006] The invention discloses a grinding sub-assembly with good anti-slip performance. After the grinding sub-assembly and the grinding sub-assembly holder are assembled in place, the locking mechanism causes the stopper to be closed and embedded in the vertical through groove to lock the plug-in block, thereby effectively preventing the stopper from shaking violently and slipping out of the vertical through groove under severe vibration conditions during train operation, thereby eliminating the hidden danger of the grinding sub-assembly slipping out of the grinding sub-assembly holder. When replacing the grinding sub-assembly, it is only necessary to use the locking mechanism to flip the stopper upward and position it above the upper end of the vertical through groove to be in an unlocked state, then remove the old grinding sub-assembly from the grinding sub-assembly holder and replace it with a new grinding sub-assembly, and then use the locking mechanism to adjust the stopper to be closed and embedded in the vertical through groove to lock the plug-in block in a locked state, thereby significantly reducing the difficulty and operation time of replacing the grinding sub-assembly, thereby helping to greatly improve the replacement efficiency of the grinding sub-assembly on the tread cleaner. The overall structural design is ingenious and reasonable, and is also applicable to narrow locomotive track space, and has high feasibility and strong practicality for preparation and application.
[0007] The preferred technical solution is that the block is provided with a second through hole, a latch rod is installed inside the second through hole, the tail end of the latch rod protrudes from the block and is provided with a limit sleeve, an elastic member for keeping the latch rod moving away from the limit sleeve is provided between the latch rod and the block, and the latch rod, the elastic member and the limit sleeve constitute the locking mechanism; an insertion hole is provided on the rear side wall of the vertical through groove, and when the locking mechanism puts the block in a locked state, one end of the latch rod away from the limit sleeve protrudes from the second through hole and is inserted into the inside of the insertion hole; when the locking mechanism puts the block in an unlocked state, one end of the latch rod away from the limit sleeve protrudes from the second through hole and overlaps the upper end surface of the rear side wall of the vertical through groove. The locking mechanism is ingeniously and reasonably designed. During the replacement of the grinding wheel, you only need to hold the limiting sleeve at the tail end of the latch rod and drag it to the side away from the block so that the end of the latch rod away from the limiting sleeve is sunken into the second through hole of the block. You can easily realize the flexible switching of the block between the two states of inside the vertical through groove and above the upper end of the vertical through groove. After adjusting to the right position, release the latch rod, and the elastic part can drive the latch rod to reset and limit the block to the locked state or unlocked state. It has strong operability and is applicable even in the narrow space of the track position.
[0008] A further preferred technical solution is that the end of the latch rod away from the limit sleeve has an annular cone and a plug connector, the plug connector is adapted to the plug hole, the upper end surface of the grinding sub-support has a protrusion located above the lateral opening end of the plug groove, the vertical through groove is opened on the protrusion, and a group of pin holes are correspondingly provided on the two arm plates located on both sides of the vertical through groove, a pin shaft is passed through the pin hole, the block has a through hole one which is arranged perpendicular to the through hole two, the block is sleeved on the pin shaft through the through hole, the pin shaft is provided with a through hole three which radially passes through its axial center line and is connected with the through hole two on the block, the latch rod passes through the through hole three on the pin shaft, the elastic member is a spring sleeved on the latch rod, one end of the spring abuts on the annular cone, and the other end abuts on the pin shaft. The stopper is connected to a pin shaft passing through the vertical through slot through a through hole. The elastic member is a spring, which is commercially available and easily available. The latch rod is installed on the stopper and the pin shaft so as to be movable forward and backward through the spring. The overall installation method is simple, ensuring that the grinding subassembly with good anti-slip performance of the present invention can be smoothly prepared and implemented.
[0009] A further preferred technical solution is that the lower side of the stopper has a slope structure corresponding to the lower side of the through hole, the end face of the stopper facing the limit sleeve has a group of ear plates corresponding to the two sides, the group of ear plates and the end face of the stopper facing the limit sleeve are enclosed to form a stop groove, the end of the limit sleeve facing the stopper has a stop block embedded in the stop groove, the end of the limit sleeve away from the stopper has an annular eaves extending toward the outer circumference, and the high end of the slope structure is adjacent to the lower end of the stop groove. The locking mechanism makes the stopper switch between the locked and unlocked states, and the slope structure plays a evasive role to ensure the smoothness of the switch between the two states of the stopper; the stop block at one end of the limit sleeve facing the stopper is embedded in the stop groove on the stopper, thereby effectively preventing the latch rod from rotating under severe vibration conditions, ensuring the installation firmness of the limit sleeve on the latch rod, and further ensuring the firmness of the locking mechanism when the stopper is closed and embedded in the vertical through groove.
[0010] A further preferred technical solution is that the upper end face of the rear side wall of the vertical through slot has a boss extending upward, and when the locking mechanism makes the block in the unlocked state, the end of the latch rod away from the limiting sleeve protrudes from the second through hole and overlaps on the upper end face of the boss. During the replacement of the grinding wheel, it is only necessary to hold the limiting sleeve at the rear end of the latch rod and drag it to the side away from the block so that the end of the latch rod away from the limiting sleeve is sunken into the second through hole of the block, and then the block is flipped upward to the top of the upper port of the vertical through slot, and the latch rod is released, so that the plug connector of the latch rod overlaps on the upper end face of the boss, which significantly increases 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 slot, ensuring the smoothness of removing the old grinding wheel from the grinding wheel holder or installing the new grinding wheel.
[0011] A further preferred technical solution is that the plug-in hole on the grinding sub-holder and the through hole three on the pin shaft are both set as waist-shaped hole structures whose long axis direction is consistent with the plug-in direction of the plug-in block and the plug-in slot. One end of the latch rod protruding from the block is plugged into the plug-in hole of the waist-shaped hole structure on the grinding sub-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 grinding sub-holder and the grinding sub-holder undergo relative reciprocating motion under severe vibration conditions, both ends of the latch rod have a certain amount of activity space, thereby effectively preventing the latch rod from breaking or deforming, ensuring the safety of the grinding sub-assembly of the present invention when in use, and the smoothness of the block when switching between the locked and unlocked states.
[0012] A further preferred technical solution is that an annular groove is provided on the inner circumferential wall surface of a group of pin holes, and when the pin shaft is inserted into the inside of a group of pin holes, the two ends are axially limited by a retaining ring embedded in the corresponding annular groove. When the pin shaft is plugged and installed in a group of pin holes on the two arm plates, the retaining ring embedded in the corresponding annular groove plays an axial limiting role, effectively preventing the pin shaft from axially moving in the group of pin holes, so that the latch rod is always kept in the middle of the vertical through groove, thereby ensuring the smoothness of the block when switching between the locked and unlocked states.
[0013] Another preferred technical solution is that the inner wall surface of the limit sleeve is provided with an internal thread structure, the tail end of the latch rod is provided with a screw section, and the limit sleeve is screwed to the screw section of the latch rod. The limit sleeve is screwed to the screw section at the tail end of the latch rod, and the installation method is simple, ensuring that the grinding subassembly with good anti-slip performance of the present invention can be quickly assembled and processed.
[0014] Another preferred technical solution is that the rear end of the latch rod is further provided with a through hole four radially penetrating the axial center line thereof, and a split pin is inserted into the through hole four and fits the side of the limit sleeve away from the stopper. The split pin has a stopper effect on the limit sleeve, thereby further improving the installation stability of the limit sleeve on the rear end of the latch rod.
[0015] A further preferred technical solution is that the plug-in slot is a dovetail slot structure, the plug-in block is a wedge-shaped block structure adapted to the plug-in slot, and the upper end surface of the plug-in block has a weight-reducing slot. The plug-in block and the plug-in slot are designed to be adapted dovetail slot structures, thereby ensuring the stability of the grinding wheel when it is installed on the grinding wheel holder; the upper end surface of the plug-in block has a weight-reducing slot, ensuring that the grinding wheel is light and portable.
[0016] The advantages and beneficial effects of the present invention are:
[0017] 1. A grinding subassembly with good anti-slip performance of the present invention, after the grinding subassembly and the grinding subassembly holder are assembled in place, the locking mechanism makes the stopper closed and embedded in the vertical through slot to lock the plug-in block, thereby effectively preventing the stopper from shaking violently and slipping out of the vertical through slot under severe vibration conditions during train operation, eliminating the hidden danger of the grinding subassembly falling out of the grinding subassembly holder; when replacing the grinding subassembly, it is only necessary to use the locking mechanism to make the stopper flip upward and be located above the upper end of the vertical through slot to be in an unlocked state, then remove the old grinding subassembly from the grinding subassembly holder and replace it with a new one, and then use the locking mechanism to adjust the stopper to be closed and embedded in the vertical through slot to lock the plug-in block in a locked state, which significantly reduces the difficulty and operation time of replacing the grinding subassembly, thereby helping to greatly improve the replacement efficiency of the grinding subassembly on the tread cleaner; the overall structural design is ingenious and reasonable, and is also applicable to narrow locomotive track space, and the preparation and application implementation feasibility is high and practical.
[0018] 2. The locking mechanism is cleverly and reasonably designed. During the replacement of the grinding wheel, you only need to hold the limit sleeve at the tail end of the latch rod and drag it to the side away from the block so that the end of the latch rod away from the limit sleeve is sunken into the second through hole of the block. You can easily realize the flexible switching of the block between the two states of inside the vertical through slot and above the upper end of the vertical through slot. After adjusting to the right position, release the latch rod, and the elastic part can drive the latch rod to reset and limit the block to the locked state or unlocked state. It has strong operability and is applicable even in the narrow space of the track position.
[0019] 3. The stopper is connected to the pin shaft passing through the vertical through slot through a through hole. The elastic member is a spring, which is commercially available and can be easily obtained. The latch rod is installed on the stopper and the pin shaft so as to be movable forward and backward through the spring. The overall installation method is simple, ensuring that the grinding subassembly with good anti-slip performance of the present invention can be smoothly prepared and implemented.
[0020] 4. The locking mechanism enables the block to switch between the locked and unlocked states, and the slope structure plays an evasive role to ensure the smoothness of the switch between the two states of the block; the stop block at one end of the limit sleeve facing the block is embedded in the stop groove on the block, thereby effectively preventing the latch rod from rotating under severe vibration conditions, ensuring the installation firmness of the limit sleeve on the latch rod, and further ensuring the firmness of the locking mechanism when the block is closed and embedded in the vertical through groove and locked.
[0021] 5. The upper end surface of the rear side wall of the vertical through slot has a boss extending upward. When the locking mechanism makes the block unlocked, the end of the latch rod away from the limiting sleeve protrudes from the second through hole and overlaps the upper end surface of the boss. During the replacement of the grinding wheel, it is only necessary to hold the limiting sleeve at the rear end of the latch rod and drag it to the side away from the block so that the end of the latch rod away from the limiting sleeve is sunken into the second through hole of the block, and then flip the block upward to the top of the upper end of the vertical through slot, release the latch rod, and the plug connector of the latch rod overlaps the upper end surface of the boss, which significantly increases 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 slot, ensuring the smoothness of removing the old grinding wheel from the grinding wheel holder or installing the new grinding wheel.
[0022] 6. The plug-in hole on the grinding sub holder and the through hole 3 on the pin shaft are both set as waist-shaped hole structures whose long axis direction is consistent with the plug-in direction of the plug-in block and the plug-in slot. One end of the latch rod protruding from the block is plugged into the plug-in hole of the waist-shaped hole structure on the grinding sub holder, and the other end protruding from the block is plugged into the through hole 3 of the waist-shaped hole structure on the pin shaft, so that when the grinding sub and the grinding sub holder undergo relative reciprocating motion under severe vibration conditions, both ends of the latch rod have a certain amount of activity space, thereby effectively preventing the latch rod from breaking or deforming, ensuring the safety of the grinding sub assembly of the present invention when in use, and the smoothness of the block when switching between the locked and unlocked states.
[0023] 7. An annular groove is provided on the inner wall surface of each of the pin holes. When the pin shaft is inserted into the pin holes, the two ends are axially limited by a retaining ring embedded in the corresponding annular groove. When the pin shaft is plugged and installed in the pin holes of the two arm plates, the retaining ring embedded in the corresponding annular groove plays an axial limiting role, effectively preventing the pin shaft from axially moving in the pin holes, so that the latch rod is always located in the middle of the vertical through groove, thereby ensuring the smoothness of the block when switching between the locked and unlocked states. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of a grinding subassembly with good anti-slip performance according to the present invention from the left front side perspective;
[0025] Figure 2 It is a schematic diagram of the disassembled structure of a grinding subassembly with good anti-slip performance according to the present invention;
[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the grinding wheel;
[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the grinding sub-holder;
[0028] Figure 5 This is a disassembled state diagram of the stopper, pin shaft, locating sleeve and split pin;
[0029] Figure 6 This is a disassembled state diagram of the latch rod and spring;
[0030] Figure 7 It is a top view (partial cross-section) of a grinding subassembly with good anti-slip performance of the present invention;
[0031] Figure 8 yes Figure 7 A partial enlarged view of the H in the middle;
[0032] Fig. 9It is one of the longitudinal cross-sectional views of the grinding subassembly with good anti-slip performance along the axial center line of the latch rod of the present invention;
[0033] Fig.10 This is the second longitudinal cross-sectional view of the grinding subassembly with good anti-slip performance along the axial center line of the latch rod of the present invention.
[0034] In the figure: 1, grinding wheel; 2, grinding wheel support; 3, stopper; 4, pin shaft; 5, retaining ring; 6, latch rod; 7, spring; 8, limit sleeve; 9, split pin; 1-1, back plate; 1-2, plug-in block; 1-3, friction block; 1-4, weight reduction groove; 2-1, plug-in groove; 2-2, protrusion; 2-2a, vertical through groove; 2-2b, arm plate; 2-2c, pin hole; 2-2c-1, ring shaped groove; 2-2d, plug 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, anti-rotation groove; 4-1, through hole three; 6-1, annular cone; 6-2, screw segment; 6-3, plug connector; 6-4, through hole four; 8-1, annular eaves; 8-2, anti-rotation block. DETAILED DESCRIPTION
[0035] The specific implementation of the present invention is further described below 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.
[0036] Example
[0037] like Figures 1 to 10 As shown, the present invention is a grinding sub-assembly with good anti-slip performance, including a grinding sub-assembly 1 and a grinding sub-holder 2, wherein the grinding sub-assembly 1 includes a back plate 1-1, a plug-in block 1-2 and a friction block 1-3, wherein the friction block 1-3 is fixedly arranged on the lower side of the back plate 1-1, and the plug-in block 1-2 is fixedly arranged on the upper side of the back plate 1-1, and the lower side of the grinding sub-holder 2 has a plug-in slot 2-1 with a lateral opening on one side, and the plug-in block 1-2 can be plugged and installed in the plug-in slot 2-1 from the lateral opening of the plug-in slot 2-1. 1, the grinding sub-holder 2 has a vertical through slot 2-2a which is connected with the lateral opening end of the plug-in slot 2-1, and a stopper 3 which can be flipped upward and opened is installed inside the vertical through slot 2-2a. The stopper 3 is pivotally connected to the grinding sub-holder 2, and a locking mechanism is provided between the stopper 3 and the grinding sub-holder 2. The locking mechanism enables the stopper 3 to have a locked state in which it is closed and embedded in the vertical through slot 2-2a to lock the plug-in block 1-2, and an unlocked state in which it is flipped upward and located above the upper end of the vertical through slot 2-2a.
[0038] Preferably, the block 3 has a through hole 2-3 inside, a latch rod 6 is installed inside the through hole 2-3, the tail end of the latch rod 6 protrudes from the block 3 and is provided with a limit sleeve 8, and an elastic member for keeping the latch rod 6 moving away from the limit sleeve 8 is also provided between the latch rod 6 and the block 3, the latch rod 6, the elastic member and the limit sleeve 8 constitute the locking mechanism; the rear side wall of the vertical through groove 2-2a is provided with an insertion hole 2-2d, when the locking mechanism puts the block 3 in a locked state, the end of the latch rod 6 away from the limit sleeve 8 protrudes from the through hole 2-3 and is inserted into the inside of the insertion hole 2-2d; when the locking mechanism puts the block 3 in an unlocked state, the end of the latch rod 6 away from the limit sleeve 8 protrudes from the through hole 2-3-3 and overlaps the upper end surface of the rear side wall of the vertical through groove 2-2a.
[0039] Further preferably, the end of the latch rod 6 away from the limiting sleeve 8 has an annular truncated cone 6-1 and a plug connector 6-3, the plug connector 6-3 is adapted to the plug hole 2-2d, the upper end surface of the grinding sub-holder 2 has a convex block 2-2 located above the lateral opening end of the plug slot 2-1, the vertical through slot 2-2a is opened on the convex block 2-2, and a group of pin holes 2-2c are correspondingly provided on the two arm plates 2-2b on both sides of the vertical through slot 2-2a, and a pin hole 2-2c is passed through the pin hole 2-2c. The pin shaft 4, the stopper 3 has a through hole 1 3-2 which is perpendicularly arranged with the through hole 2 3-3, the stopper 3 is sleeved on the pin shaft 4 through the through hole 1 3-2, the pin shaft 4 is provided with a through hole 3 4-1 which radially passes through its axial center line and is in communication with the through hole 2 3-3 on the stopper 3, the latch rod 6 passes through the through hole 3 4-1 on the pin shaft 4, the elastic member is a spring 7 sleeved on the latch rod 6, one end of the spring 7 abuts against the annular cone 6-1, and the other end abuts against the pin shaft 4.
[0040] Further preferably, the lower side of the stop block 3 has a slope structure 3-1 corresponding to the bottom of the through hole 3-2, and the end surface of the stop block 3 facing the limiting sleeve 8 has a group of ear plates 3-4 corresponding to the two sides, a group of ear plates 3-4 and an end surface of the stop block 3 facing the limiting sleeve 8 enclose a stop groove 3-5, the end of the limiting sleeve 8 facing the stop block 3 has a stop block 8-2 embedded in the stop groove 3-5, the end of the limiting sleeve 8 away from the stop block 3 has an annular eaves 8-1 extending toward the outer peripheral side, and the high end of the slope structure 3-1 is adjacent to the lower port of the stop groove 3-5.
[0041] Further preferably, the upper end surface of the rear side wall of the vertical through groove 2-2a has a boss 2-2e extending upward, and when the locking mechanism puts the block 3 in an unlocked state, the end of the latch rod 6 away from the limit sleeve 8 protrudes out of the through hole 2 3-3 and overlaps the upper end surface of the boss 2-2e.
[0042] Further preferably, the plug-in hole 2-2d located on the grinding sub-holder 2 and the through hole 4-1 located on the pin shaft 4 are both set to be waist-shaped hole structures whose long axis direction is consistent with the plug-in direction of the plug-in block 1-2 and the plug-in slot 2-1.
[0043] Further preferably, an annular groove 2-2c-1 is provided on the inner wall surface of a group of the pin holes 2-2c, and when the pin shaft 4 is passed through the interior of a group of the pin holes 2-2c, the two ends are axially limited by a retaining ring 5 embedded in the corresponding annular groove 2-2c-1.
[0044] Preferably, an inner wall surface of the limiting sleeve 8 is provided with an internal thread structure, a screw section 6 - 2 is provided at the tail end of the latch rod 6 , and the limiting sleeve 8 is screwed onto the screw section 6 - 2 of the latch rod 6 .
[0045] Preferably, the rear end of the latch rod 6 is further provided with a through hole 6-4 radially penetrating its axial center line, and a cotter pin 9 is inserted into the through hole 6-4 and is 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 adapted to the plug-in slot 2-1, and the upper end surface of the plug-in block 1-2 has a weight-reducing groove 1-4.
[0047] Further preferably, a pair of ear plates 2-3 are provided on the upper side of the grinding sub-holder 2, and mounting holes 2-3a are provided on the ear plates 2-3, 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 subassembly with good anti-slip performance of the present invention is as follows:
[0049] When replacing the grinding wheel 1, hold the limiting sleeve 8 at the tail end of the latch rod 6 and drag it to the side away from the block 3, so that the end of the latch rod 6 away from the limiting sleeve 8 is sunken into the through hole 2-3 of the block 3, and then the block 3 is turned upward to the upper end of the vertical through groove 2-2a, and the latch rod 6 is released, so that the plug connector 6-3 on the latch rod 6 overlaps the upper end surface of the boss 2-2e and is in an unlocked state (see attached Fig.10); remove the old grinding wheel 1 from the grinding wheel holder 2, and install the new grinding wheel 1 in the insertion slot 2-1 on the grinding wheel holder 2 through the insertion block 1-2; hold the limiting sleeve 8 at the tail end of the latch rod 6 and drag it to the side away from the block 3, so that the end of the latch rod 6 away from the limiting sleeve 8 is sunken into the through hole 2-3 of the block 3, and then the block 3 is turned down and closed and embedded in the vertical through slot 2-2a, and the latch rod 6 is released, so that the plug connector 6-3 on the latch rod 6 is re-inserted into the plug hole 2-2d on the rear side wall of the vertical through slot 2-2a to be locked (see attached Fig. 9 ) to complete the replacement of grinding wheel 1.
[0050] The invention discloses a grinding sub-assembly with good anti-slip performance. After the grinding sub-assembly and the grinding sub-assembly holder are assembled in place, the locking mechanism causes the stopper to be closed and embedded in the vertical through groove to lock the plug-in block, thereby effectively preventing the stopper from shaking violently and slipping out of the vertical through groove under severe vibration conditions during train operation, thereby eliminating the hidden danger of the grinding sub-assembly slipping out of the grinding sub-assembly holder. When replacing the grinding sub-assembly, it is only necessary to use the locking mechanism to flip the stopper upward and position it above the upper end of the vertical through groove to be in an unlocked state, then remove the old grinding sub-assembly from the grinding sub-assembly holder and replace it with a new grinding sub-assembly, and then use the locking mechanism to adjust the stopper to be closed and embedded in the vertical through groove to lock the plug-in block in a locked state, thereby significantly reducing the difficulty and operation time of replacing the grinding sub-assembly, thereby helping to greatly improve the replacement efficiency of the grinding sub-assembly on the tread cleaner. The overall structural design is ingenious and reasonable, and is also applicable to narrow locomotive track space, and has high feasibility and strong practicality for preparation and application.
[0051] 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 principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A grinding subassembly with good anti-drop performance, comprising a grinding subassembly (1) and a grinding subassembly holder (2), wherein the back of the grinding subassembly (1) is provided with a plug-in block (1-2), the lower side of the grinding subassembly holder (2) is provided with a plug-in slot (2-1) with a lateral opening on one side, and the plug-in block (1-2) can be plugged and installed in the plug-in slot (2-1) through the lateral opening of the plug-in slot (2-1), characterized in that: The grinding sub-holder (2) is provided with a vertical through groove (2-2a) which is in communication with the lateral open end of the plug-in groove (2-1); a stopper (3) which can be flipped upward and opened is installed inside the vertical through groove (2-2a); the stopper (3) is pivotally connected to the grinding sub-holder (2); and a locking mechanism is provided between the stopper (3) and the grinding sub-holder (2); the locking mechanism enables the stopper (3) to have a locked state in which it is closed and embedded inside the vertical through groove (2-2a) to lock the plug-in block (1-2) and an unlocked state in which it is flipped upward and located above the upper end of the vertical through groove (2-2a).
2. The grinding subassembly with good anti-slip performance as claimed in claim 1, characterized in that: The block (3) has a second through hole (3-3) inside, a latch rod (6) is installed inside the second through hole (3-3), the rear end of the latch rod (6) protrudes from the block (3) and is provided with a limit sleeve (8), an elastic member is also provided between the latch rod (6) and the block (3) for keeping the latch rod (6) moving away from the limit sleeve (8), the latch rod (6), the elastic member and the limit sleeve (8) constitute the locking mechanism; the vertical through hole (3) A plug hole (2-2d) is provided on the rear side wall of the groove (2-2a); when the locking mechanism puts the block (3) in a locked state, one end of the latch rod (6) away from the limiting sleeve (8) protrudes from the second through hole (3-3) and is plugged into the inside of the plug hole (2-2d); when the locking mechanism puts the block (3) in an unlocked state, one end of the latch rod (6) away from the limiting sleeve (8) protrudes from 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 subassembly with good anti-slip performance as claimed in claim 2, characterized in that: The end of the latch rod (6) away from the limiting sleeve (8) has an annular truncated cone (6-1) and a plug connector (6-3), and the plug connector (6-3) is adapted to the plug hole (2-2d). The upper end surface of the grinding sub-holder (2) has a protrusion (2-2) located above the lateral opening end of the plug 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 provided on the two arm plates (2-2b) located on both sides of the vertical through slot (2-2a). A pin shaft (4) is passed through the pin hole (2-2c). The stopper (3) is provided with a through hole one (3-2) which is arranged perpendicularly to the through hole two (3-3); the stopper (3) is sleeved on the pin shaft (4) through the through hole one (3-2); the pin shaft (4) is provided with a through hole three (4-1) which radially passes through its axial center line and is in communication with the through hole two (3-3) on the stopper (3); the latch rod (6) passes through the through hole three (4-1) on the pin shaft (4); the elastic member is a spring (7) sleeved on the latch rod (6); one end of the spring (7) abuts against the annular truncated cone (6-1), and the other end abuts against the pin shaft (4).
4. The grinding subassembly with good anti-slip performance as claimed in claim 3, characterized in that: The lower side of the stopper (3) has a slope structure (3-1) correspondingly located below the through hole (3-2); one end surface of the stopper (3) facing the limiting sleeve (8) has a group of ear plates (3-4) correspondingly located on both sides; a group of ear plates (3-4) and one end surface of the stopper (3) facing the limiting sleeve (8) enclose a stop groove (3-5); one end of the limiting sleeve (8) facing the stopper (3) has a stopper (8-2) embedded in the stop groove (3-5); one end of the limiting sleeve (8) away from the stopper (3) has an annular eaves (8-1) extending toward the outer peripheral side; and the high end of the slope structure (3-1) is adjacent to the lower end of the stop groove (3-5).
5. The grinding subassembly with good anti-slip performance as claimed in claim 4, characterized in that: The upper end surface of the rear side wall of the vertical through groove (2-2a) has a boss (2-2e) extending upward, and when the locking mechanism puts the stopper (3) in an unlocked state, the end of the latch rod (6) away from the limiting sleeve (8) protrudes out of the second through hole (3-3) and overlaps the upper end surface of the boss (2-2e).
6. The grinding subassembly with good anti-slip performance as claimed in claim 5, characterized in that: The plug-in hole (2-2d) located on the grinding sub-holder (2) and the through hole three (4-1) located on the pin shaft (4) are both configured as waist-shaped hole structures whose long axis direction is consistent with the plug-in direction of the plug-in block (1-2) and the plug-in slot (2-1).
7. The grinding subassembly with good anti-slip performance as claimed in claim 3, characterized in that: An annular groove (2-2c-1) is provided on the inner wall surface of a group of pin holes (2-2c). When the pin shaft (4) is inserted into the inside of a group of pin holes (2-2c), the two ends are axially limited by a retaining ring (5) respectively embedded in the corresponding annular groove (2-2c-1).
8. The grinding subassembly with good anti-slip performance as claimed in claim 2, characterized in that: An internal thread structure is provided on the inner wall surface of the limiting sleeve (8), a screw section (6-2) is provided at the tail end of the latch rod (6), and the limiting sleeve (8) is screwed onto the screw section (6-2) of the latch rod (6).
9. The grinding subassembly with good anti-slip performance as claimed in claim 2, characterized in that: The rear end of the latch rod (6) is also provided with a through hole four (6-4) radially penetrating its axial center line, and a split pin (9) is inserted into the through hole four (6-4) and is located on the side of the limiting sleeve (8) away from the stopper (3).
10. The grinding subassembly with good anti-slip performance according to any one of claims 1 to 9, characterized in that: The plug-in slot (2-1) is a dovetail slot structure, the plug-in block (1-2) is a wedge-shaped block structure adapted to the plug-in slot (2-1), and the upper end surface of the plug-in block (1-2) is provided with a weight-reducing slot (1-4).