Tapping device for wheel of rail car

Abstract

The invention relates to the technical field of wheel machining of rail cars, and discloses a tapping device for wheels of a rail car. According to the device, long scraps generated in the wheel tapping process can be timely and effectively cut, smashed and recycled, and a smashing mechanism and a cutting cutterhead are driven by a rotating shaft to cooperate with the action of gathering hook claws and gathering blocks to gather the long scraps in a left-right reciprocating mode and the action of stretching the scraps in a front-back reciprocating mode through telescopic strips and obliquely-arranged rotating blocks; the long sweeps can be quickly and stably restrained on the surfaces of the crushing roller and the cutting cutterhead and are cut, broken, crushed and recycled, and the situation that the sweeps are bent and wound due to the too long sweeps, and a large number of scratches and damages appear on a tapping inner hole and the surface of a wheel is avoided; the top end of the tapping inner hole is bent downwards under the action of self gravity, and when the bending angle is too large or winding occurs, a large number of scratches and damages are caused to the tapping inner hole and the surface of the wheel.

Description

Technical Field

[0001] The present application relates to the technical field of wheel processing for rail vehicles, and in particular to a wheel tapping device for rail vehicles. Background Art

[0002] During the manufacturing process, rail wheels need to go through many steps, among which tapping is required for easier connection and installation with other connecting accessories. Since rail wheels are used in the external natural environment for a long time, the anti-rust treatment on their surface and the quality of the tapped inner hole will affect the life of the wheels. The external force interference they encounter for a long time has a direct impact on the life of the wheels. For example, factors such as rain, sunlight or bumpy roads can cause surface corrosion of the wheels and deformation of the tapped holes.

[0003] The thickness of rail wheels is generally wider, and the required tapping inner hole depth is also deeper. During the tapping process of rail wheels, the waste chip discharge direction is different due to the different taps used. When the waste chips are discharged upward, the deeper the drilling depth of the tap, the longer the waste chips produced. When the waste chips are too long, the other end will bend downward under the action of its own gravity. When the bending angle is too large or entanglement occurs, it will cause damage to the tapped inner hole and the wheel surface, resulting in a large number of scratches on the tapped inner hole and the wheel surface. Summary of the invention

[0004] The present application proposes a wheel tapping device for a rail vehicle, which has the function of timely and effectively cutting, crushing and recycling long waste chips generated in the process of wheel tapping. Its crushing mechanism and cutting disc are driven by a rotating shaft, and cooperate with the gathering hook claw and the gathering block to gather the long waste chips reciprocatingly left and right, and the telescopic bar and the inclined rotating block to hook and stretch the long waste chips reciprocatingly back and forth, so that the long waste chips can be quickly and stably constrained on the surface of the crushing roller and the cutting disc, cut, broken and crushed and recycled by them, avoiding the waste chips from being too long and bending and entangled, causing a large number of scratches and damages on the tapping inner hole and the wheel surface. It is used to solve the problem that when the length of the waste chips is too long, its top will bend downward under the action of its own gravity. When the bending angle is too large or entangled, it will cause damage to the tapping inner hole and the wheel surface, resulting in a large number of scratches on the tapping inner hole and the wheel surface.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a wheel tapping device for a rail vehicle, comprising a mounting frame mounted on an external drill bit mounting member, the bottom end of the mounting frame is fixedly connected to a mounting plate, a protective cover, the protective cover is fixedly mounted on the top of the mounting plate, and an exhaust pipe for absorbing debris is installed through the tail, the end of the exhaust pipe away from the protective cover is connected to an external recovery device, a crushing mechanism for crushing long waste chips, the crushing mechanism comprises a small motor fixedly mounted on the top of the protective cover, the output shaft of the small motor passes through the protective cover and is fixedly connected to a rotating shaft, and The bottom end of the rotating shaft is rotatably connected to the inner wall of the protective cover, and the rotating shaft is located in the protective cover, and a rod body is sleeved and fixed with a crushing roller for crushing long waste chips. A magnetic ring matching its contour is embedded in the crushing roller, and an arc-shaped magnetic blocking block matching the contour of the outer ring of the crushing roller is fixedly connected to the upper surface of the mounting plate, and a gathering mechanism is used to gather the long waste chips. The gathering mechanism includes a through groove opened on the side of the protective cover opposite to the exhaust pipe, and a gathering hook is rotatably connected in the through groove, and the gathering hook is located at the inner end of the protective cover and is fitted with an eccentric shaft, and the eccentric shaft is fixedly connected to the eccentric part of the top of the crushing roller.

[0006] Furthermore, the crushing mechanism and the gathering mechanism are provided in two sets, and the installation positions are symmetrically arranged.

[0007] Furthermore, the sizes, models and spacings of the two crushing rollers are adapted to each other.

[0008] Furthermore, a first spring is fixedly connected to the end of the gathering hook at a side opposite to the eccentric shaft and the inner wall of the protective cover.

[0009] Furthermore, a gathering block matching the contour of the gathering hook is fixedly connected to the bottom of one end of the gathering hook located outside the protective cover.

[0010] Furthermore, a cutting groove adapted to the inner cavity of the protective cover is opened in the mounting plate, the bottom ends of the two rotating shafts vertically penetrate the mounting plate and are rotatably connected to the bottom of the cutting groove, the rod body of the rotating shaft located in the cutting groove is sleeved and fixed with a cutting disc for cutting long waste chips, and the installation positions of the two cutting discs are adapted.

[0011] Furthermore, cleaning brushes for cleaning residual debris are fixedly connected to the rod bodies of the two rotating shafts located in the cutting grooves, and the cleaning brushes are located below the cutting disc.

[0012] Furthermore, the length of the cleaning brush is smaller than the minimum distance between the outer arc surface of the end of the rotating shaft and the inner wall of the cutting groove.

[0013] Furthermore, the inner wall of the cutting groove is provided with two matching limit grooves, a telescopic strip is connected to the limit sliding in the limit groove, a second spring is fixedly connected between the telescopic strip and the inner wall of the limit groove, a rotating groove is provided at the end of the telescopic strip away from the limit groove, a rotating block is rotatably connected in the rotating groove, an abutment block is fixedly connected to the upper surface of the cutting disc, and a protrusion that fits the surface of the abutment block is provided on the side of the telescopic strip opposite to the abutment block, and the protrusion is matched with the size and contour of the abutment block.

[0014] Furthermore, a third spring is fixedly connected between the inner wall of the rotating groove and the end of the rotating block, and one end of the rotating block away from the third spring is inclined toward the rotating groove.

[0015] The beneficial effects of the present invention are as follows:

[0016] The present application provides a wheel tapping device for a rail vehicle, which drives a rotating shaft to rotate through a small motor, so that two rotating shafts drive respective sleeved and fixed crushing rollers to crush the ends of long waste chips, and the crushed chips are sucked into an external recovery device through an exhaust pipe installed on a protective cover. During this period, when the crushing roller rotates, its rotational action drives an eccentric shaft fixed on its top to abut and push one end of a gathering hook, so that the other end of the gathering hook outside the protective cover approaches the surface of the crushing roller. Therefore, the two gathering hooks achieve the effect of reciprocating left and right to gather the long waste chips. At the same time, the cutting disc is also driven by the rotating shaft to The long waste chips that are clamped and crushed by the crushing roller are cut off to prevent the waste chips from being too long. As a result, during the rotation of the tap, the waste chips that are not completely crushed are driven by the tap to separate from the crushing roller, causing the long waste chips to pop out of the crushing range of the crushing roller, resulting in incomplete crushing of the long waste chips. The advantage of preventing the waste chips from being too long and bending and entangled, causing a large number of scratches and damage on the tapped inner hole and the wheel surface, is to solve the problem that when the length of the waste chips is too long, the top end of the waste chips will bend downward under the action of its own gravity. When the bending angle is too large or entangled, it will cause damage to the tapped inner hole and the wheel surface, resulting in a large number of scratches on the tapped inner hole and the wheel surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2It is a schematic diagram of the structure of the mounting plate and the protective cover in the present invention;

[0020] Figure 3 It is a schematic diagram of the structure inside the protective cover of the present invention;

[0021] Figure 4 It is a partial cross-sectional structural schematic diagram of the mounting plate and the protective cover in the present invention;

[0022] Figure 5 It is a structural schematic diagram of the mounting plate in the present invention;

[0023] Figure 6 It is a schematic diagram of the bottom cross-sectional structure of the mounting plate in the present invention;

[0024] Figure 7 It is a schematic diagram of the top cross-sectional structure of the mounting plate in the present invention;

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of area A in the middle.

[0026] In the figure: 1. mounting frame; 2. mounting plate; 201. cutting groove; 202. cutting blade; 203. cleaning brush; 3. protective cover; 4. exhaust pipe; 5. small motor; 6. rotating shaft; 601. crushing roller; 602. magnetic ring; 603. arc-shaped magnetic blocking block; 7. through groove; 701. gathering hook; 702. eccentric shaft; 703. first spring; 704. gathering block; 8. telescopic strip; 801. limiting groove; 802. second spring; 803. rotating groove; 804. rotating block; 805. third spring; 806. abutment block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1

[0029] like Figure 1As shown, by means of a mounting frame 1 mounted on an external drill bit mounting part and a mounting plate 2 fixedly connected to the bottom end of the mounting frame 1, it is convenient for users to install relevant waste chip processing structures on the mounting plate 2, so as to achieve the effect of convenient disassembly, assembly and maintenance. When the tap processes the internal thread on the wheel surface, the tap first rotates downward in one direction, and then rotates upward in the opposite direction, so as to cut a thread groove path that matches the tap on the inner wall of the pre-opened through hole. In this process, the rotating and lifting action of the tap will bring out the long waste chips cut out from the inner wall of the through hole. The long waste chips brought out will bend, entangle and break during the rotation of the tap, and are easy to fly out and accidentally injure the operator, as well as cause a large number of scratches and damage to the wheel surface and the tapped inner hole, resulting in the problem of reduced product quality.

[0030] like Figure 1-Figure 4 As shown, by starting two small motors 5 fixedly mounted on the protective cover 3, the output shafts of the two small motors 5 drive the rotating shaft 6 fixedly connected to the ends thereof to rotate relative to each other, thereby driving the crushing roller 601 sleeved and fixed on the rotating shaft 6 to rotate. Since the mounting frame 1 and the mounting plate 2 are in a stationary state relative to the tap, the tap will drive the long waste chips to abut against the surfaces of the two crushing rollers 601 during the rotation process, and the long waste chips will be squeezed and crushed during the relative rotation of the two crushing rollers 601, thereby shortening the long waste chips and preventing them from bending and winding. , so that it will be crushed at a certain length, avoiding the long waste chips from continuously rubbing against the wheel surface and the tapping inner hole when they are bent and entangled, causing a large number of scratches and damages. At the same time, the external recovery device is started, and the external recovery device sends a strong suction force to the inner cavity of the protective cover 3 through the exhaust pipe 4. On the one hand, the debris after the long waste chips are crushed can be sucked away and recovered, and on the other hand, the air circulation at the tap can be accelerated, attracting the long waste chips to adhere to the surface of the crushing roller 601, and reducing the high temperature effect of the tap caused by the intense friction, so as to achieve the effect of continuously crushing and recycling the long waste chips.

[0031] like Figure 3-Figure 4 As shown, when the long waste chips rotate and abut against the surface of the crushing roller 601, the magnetic ring 602 embedded in the crushing roller 601 will firmly adsorb the long waste chips on the crushing roller 601 through its own magnetic attraction force, avoiding the long waste chips abutting against the crushing roller 601 from being ejected by the rebound force. Under the action of the magnetic attraction force, the long waste chips can be stably driven to be crushed under the relative crushing of the two crushing rollers 601, thereby improving the stability of the device when crushing the long waste chips.

[0032] It is worth noting that an arc-shaped magnetic blocking block 603 that is compatible with the outer ring contour of the crushing roller 601 is set on the upper surface of the mounting plate 2. The end of the arc-shaped magnetic blocking block 603 close to the exhaust pipe 4 is set to an inclined arc surface, and the material is made of magnetic blocking material. At this time, when the debris adsorbed on the crushing roller 601 passes through the arc-shaped magnetic blocking block 603, it will be scraped off by the arc surface end of the arc-shaped magnetic blocking block 603, and fall into the protective cover 3 near the port of the exhaust pipe 4, and finally be sucked away by the exhaust pipe 4, thereby accelerating the debris crushing and recovery efficiency.

[0033] Embodiment 2

[0034] On the basis of the first embodiment, further improvements are made, such as Figure 3-Figure 4 As shown, when the crushing roller 601 rotates with the rotating shaft 6, the eccentric shaft 702 fixedly connected at the top thereof will abut against the gathering hook 701 and push the gathering hook 701 connected and rotated in the through groove 7 to adaptively rotate in the through groove 7; when the gathering hook 701 abutting against the eccentric shaft 702 is pushed close to the inner wall of the protective cover 3, the first spring 703 will be compressed, and one end of the gathering hook 701 outside the protective cover 3 will move closer to the crushing roller 601; when the two crushing rollers 601 respectively abut against and push the gathering hook 701 to rotate at an adaptive angle through the eccentric shaft 702 at the top thereof, the other ends of the two gathering hooks 701 will also synchronously gather toward the surface of the crushing roller 601, thereby achieving the effect of gathering and abutting the long waste chips on the surface of the crushing roller 601, and preventing the long waste chips from popping out of the range of the crushing roller 601, resulting in the problem of incomplete crushing of the long waste chips.

[0035] like Figure 3 As shown, a gathering block 704 matching its contour is fixedly connected to the bottom of one end of the gathering hook 701 located outside the protective cover 3. This arrangement can effectively increase the gathering area of ​​the end of the gathering hook 701 for the long waste chips when the gathering hook 701 is relatively gathered, thereby improving the gathering effect, so that the long waste chips can be gathered more concentratedly between the two crushing rollers 601, and crushed and recovered under the continuous rotation and rolling of the two crushing rollers 601.

[0036] Embodiment 3

[0037] On the basis of the second embodiment, further supplements are made, such as Figure 4-Figure 8As shown, when the rotating shaft 6 rotates, its end portion penetrating through the cutting groove 201 will respectively drive the cutting discs 202 fixedly connected to their respective bottom ends to rotate. The relative rotation of the two cutting discs 202 can cut off the bottom ends of the long waste chips that are close to it, thereby reducing the pressure of the two crushing rollers 601 when they rotate to crush the long waste chips, thereby avoiding the problem of the waste chips being too long during the crushing process, resulting in the waste chips not being completely crushed and broken, and the taps having already driven the remaining waste chips out of the crushing range of the crushing rollers 601, causing incomplete crushing. On this basis, the two gathering hooks 701 in the gathering mechanism drive the gathering blocks 704 fixedly connected to their bottom ends to gather the spread long waste chips to the surface of the crushing rollers 601 again, thereby achieving the effect of restraining and cutting the long waste chips, and is beneficial to improving the stability of the two crushing rollers 601 in the crushing mechanism in crushing the long waste chips.

[0038] In addition, when the two cutting discs 202 rotate, the abutment block 806 fixedly connected on the surface will abut against the protrusion extending outward from the telescopic strip 8. Since one end of the telescopic strip 8 is slidably connected in the limiting groove 801, and the limiting groove 801 is opened in the cutting groove 201, and because of the circular motion of the cutting disc 202, the abutment block 806 will intermittently abut against and push the telescopic strip 8 to reciprocate in the limiting groove 801. During this period, the second spring 802 fixedly connected between the end of the telescopic strip 8 and the inner wall of the limiting groove 801 will be repeatedly compressed and restored, assisting the reciprocating motion of the telescopic strip 8 and improving the stability of the reciprocating motion of the telescopic strip 8. At the same time, a rotating block 804 is rotatably connected in the rotating groove 803 opened at the other end of the telescopic strip 8, and one end of the rotating block 804 is inclined toward the middle of the two cutting discs 202, and the end of the rotating block 804 is aligned with the inner wall of the rotating groove 803. A third spring 805 is fixedly connected between the walls. At this time, with the reciprocating motion of the telescopic bar 8, the rotating block 804 can continuously extend forward and hook the long waste chips backward to move them closer to the middle of the two cutting discs 202, which facilitates the cutting of the long waste chips by the cutting disc 202 and improves the cutting effect of the cutting disc 202 on the long waste chips. When encountering long waste chips with relatively strong strength and being squeezed and crushed by the two crushing rollers 601, the rotating block 804 will be pushed to rotate backward when it contacts and touches the long waste chips, and partially retract into the rotating groove 803. When it is completely separated from the long waste chips, it is returned to its original position by the elastic force of the third spring 805, and then in the reciprocating retraction motion of the telescopic bar 8, the long waste chips with relatively strong strength are pulled into the cutting range of the two cutting discs 202 for cutting, thereby reducing the crushing pressure of the crushing mechanism and avoiding the problem that the crushing roller 601 is not completely crushed and the tap continues to drive the remaining waste chips to rotate.

[0039] Among them, since the cleaning brush 203 is located below the cutting disc 202 and is fixedly connected to the rod body located in the cutting groove 201 with two rotating shafts 6, when the cutting disc 202 rotates to cut long waste chips, its rotation action may bring some accidentally cut chips into the cutting groove 201. At this time, the cleaning brush 203 will rotate synchronously with the cutting disc 202 to clean out the chips in the cutting groove 201.

[0040] It is worth noting that the size, model, rotation height and speed of the taps are different depending on the tapping requirements. The rotation speed of the taps here is adapted to the rotation speeds of the two crushing rollers 601 and the cutting disc 202. The long waste chips abutting against the surfaces of the crushing rollers 601 and the cutting disc 202 can be crushed and cut during the relative rotation, extrusion and cutting of the crushing rollers 601 and the cutting disc 202.

[0041] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wheel tapping device for a rail vehicle, characterized in that: include: A mounting frame (1) mounted on an external drill bit mounting member, wherein a mounting plate (2) is fixedly connected to the bottom end of the mounting frame (1); A protective cover (3), wherein the protective cover (3) is fixedly mounted on the top of the mounting plate (2), and an exhaust pipe (4) for absorbing debris is installed through the rear end, and the exhaust pipe (4) is connected to an external recovery device at one end away from the protective cover (3); A crushing mechanism for crushing long waste scraps, the crushing mechanism comprising a small motor (5) fixedly mounted on the top of the protective cover (3), the output shaft of the small motor (5) passing through the protective cover (3) and fixedly connected to a rotating shaft (6), and the bottom end of the rotating shaft (6) is rotatably connected to the inner wall of the protective cover (3), the rotating shaft (6) is located in the protective cover (3) and is sleeved and fixed with a crushing roller (601) for crushing long waste scraps, the crushing roller (601) is embedded with a magnetic ring (602) matching its profile, and the upper surface of the mounting plate (2) is fixedly connected with an arc-shaped magnetic blocking block (603) matching the outer ring profile of the crushing roller (601); A gathering mechanism is used for gathering long waste chips, the gathering mechanism comprising a through slot (7) provided on a side of the protective cover (3) opposite to the exhaust pipe (4), a gathering hook (701) rotatably connected in the through slot (7), the gathering hook (701) being located at the inner end of the protective cover (3) and being closely connected to an eccentric shaft (702), and the eccentric shaft (702) being fixedly connected to the eccentric position of the top of the crushing roller (601).

2. A wheel tapping device for a rail vehicle according to claim 1, characterized in that: The crushing mechanism and the gathering mechanism are each provided with two sets, and the installation positions are symmetrically arranged.

3. A wheel tapping device for a rail vehicle according to claim 1, characterized in that: The sizes, models and spacings of the two crushing rollers (601) are adapted to each other.

4. A wheel tapping device for a rail vehicle according to claim 1, characterized in that: The end of the gathering hook (701) is fixedly connected to a first spring (703) on the side opposite to the eccentric shaft (702) and the inner wall of the protective cover (3).

5. A wheel tapping device for a rail vehicle according to claim 1, characterized in that: A gathering block (704) matching the contour of the gathering hook (701) is fixedly connected to the bottom of one end of the gathering hook (701) located outside the protective cover (3).

6. A wheel tapping device for a rail vehicle according to claim 1, characterized in that: The mounting plate (2) is provided with a cutting groove (201) adapted to the inner cavity of the protective cover (3); the bottom ends of the two rotating shafts (6) vertically penetrate the mounting plate (2) and are rotatably connected to the bottom of the cutting groove (201); the rod body of the rotating shaft (6) located in the cutting groove (201) is sleeved and fixed with a cutting disc (202) for cutting long waste chips, and the installation positions of the two cutting discs (202) are adapted to each other.

7. A wheel tapping device for a rail vehicle according to claim 6, characterized in that: A cleaning brush (203) for cleaning residual debris is fixedly connected to the rod body of the two rotating shafts (6) located in the cutting groove (201), and the cleaning brush (203) is located below the cutting disc (202).

8. A wheel tapping device for a rail vehicle according to claim 7, characterized in that: The length of the cleaning brush (203) is less than the minimum distance between the outer arc surface of the end of the rotating shaft (6) and the inner wall of the cutting groove (201).

9. A wheel tapping device for a rail vehicle according to claim 8, characterized in that: The inner wall of the cutting groove (201) is provided with two matching limiting grooves (801), a telescopic strip (8) is slidably connected to the limiting groove (801), a second spring (802) is fixedly connected between the telescopic strip (8) and the inner wall of the limiting groove (801), a rotating groove (803) is provided at one end of the telescopic strip (8) away from the limiting groove (801), a rotating block (804) is rotatably connected in the rotating groove (803), an abutment block (806) is fixedly connected to the upper surface of the cutting blade (202), a convex block that fits the surface of the abutment block (806) is provided on the side of the telescopic strip (8) opposite to the abutment block (806), and the size and contour of the convex block are matched with the abutment block (806).

10. A wheel tapping device for a rail vehicle according to claim 9, characterized in that: A third spring (805) is fixedly connected between the inner wall of the rotating groove (803) and the end of the rotating block (804), and one end of the rotating block (804) away from the third spring (805) is inclined toward the rotating groove (803).

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