JP2021088335A - Safe removal device for swelled tire of wagon - Google Patents

Abstract

To provide a safe removal device for a swelled tire of a wagon.SOLUTION: A safe removal device for a swelled tire of a wagon includes an explosion-proof small wheel. Therein, an explosion-proof space is provided in the explosion-proof small wheel, a power device is installed in the explosion-proof space, the power device can provide lateral movement for clamping wheels and can rotate the wheels, a wheel-clamping device is installed on the power device, the wheel-clamping device is used for clamping and fixing the wheels, a nut remover for removing a nut is installed on the power device, a nut clamping device for clamping and fixing the nut is installed on the nut remover, such a risk as to injure an operator due to swelling of a tire on an operation procedure is reduced because it is not required that the operator gets near the nut on the nut removing procedure and, therefore, the swelled tire of the wagon can be removed safely.SELECTED DRAWING: Figure 1

Description

The present invention relates to the field of wheel removal technology, specifically, a safe removal device for inflated tires of freight cars.

If a tire has a bulge, you must replace it immediately, otherwise the tire may puncture while the vehicle is running and there is a risk of an explosion in the process of removing the bulge. , The shock wave generated by the explosion is large and may hurt the tire removal worker. The current removal of inflated tires is usually done by hand with a removal tool, which can hurt a person during the removal process. The present invention can solve the above problems.

Chinese Patent Application Publication No. 1054378664

Technical problem: Currently, there is no device that can safely remove the inflated tires of a freight car.

In order to solve the above problem, a safe removing device for a bulging tire of a freight car is designed, and the safe removing device for a bulging tire of a freight car according to the present invention includes an explosion-proof small car and the explosion-proof small. An explosion-proof space is installed in the car, a power device is installed in the explosion-proof space, and the power device can provide left-right movement for sandwiching the wheels and can rotate the wheels. A wheel pinching device is installed in the power device, the wheel pinching device is used for pinching and fixing the wheel, a nut removing device for removing a nut is installed in the power device, and a nut is installed in the nut removing device. A nut pinching device is installed to pinch and fix the nut, and the power device can rotate the nut removing device and the nut pinching device to automatically detect the position of the nut on the wheel. A nut holding space opened to the left is installed in the holding board including a holding board installed in the explosion-proof space, and a secondary position located on the right side of the nut holding space in the holding board. An elevating space is installed, a slider is slidably connected in the sub elevating space, the slider and the right inner wall of the sub elevating space are connected by a thrust spring, and a position is placed on the right inner wall of the sub elevating space. The switch is fixedly connected, and a link extending to the left in the nut holding space is fixedly connected to the left end surface of the slider, and a push plate located in the nut holding space is fixedly connected to the link. Is fixedly connected, a distance sensor is fixedly connected to the left end surface of the push plate, a secondary electric magnet is fixedly connected to the inner wall of the nut holding space, and the inner wall of the nut holding space is fixedly connected. Ten slide holes communicating with the explosion-proof space are arranged in an annular shape, a sub-holding rod is slidably connected to the slide hole, and a sub-holding plate located in the nut holding space is attached to the sub-holding rod. Fixedly connected, the nut holding device can hold and fix the nut of the wheel by the auxiliary holding plate, the wheel is rotated by the power device, and the distance between the push plate and the wheel is measured by the distance sensor. By doing so, the position of the nut of the wheel can be detected.

The power unit includes a lead screw that is rotatably connected to the right inner wall of the explosion-proof space and extends to the left, a pulley is fixedly connected to the lead screw, and a lateral movement block is contained in the explosion-proof space. Is installed, a screw hole opened to the right is installed in the lateral movement block, the base screw extends to the screw hole and is connected to the screw hole by a screw thread, and is connected in the lateral movement block. Is provided with a guide hole opened to the right, a guide rod extending to the left is fixedly connected to the inner wall on the right side of the explosion-proof space, the guide rod is located below the lead screw, and the guide rod Extends to the guide hole and is slidably connected to the guide hole, a motor shaft extending to the left is rotatably connected to the right inner wall of the explosion-proof space, and the motor shaft is located above the lead screw. A motor fixedly connected to the inner wall on the right side of the explosion-proof space is rotatably connected to the motor shaft, and a sub-pulley is rotatably connected to the motor shaft. A secondary spline space that is connected by a V-belt and opens to the left is installed in the secondary pulley, and a fixing base located on the left side of the secondary pulley is fixedly connected to the upper inner wall of the explosion-proof space. A gear shaft extending to the left and right is rotatably connected to the right end surface of the fixed base, a rotating disc located on the right side of the fixed base is fixedly connected to the gear shaft, and the right side is inside the rotating disc. A spline space that opens toward the side is installed, an electromagnet is fixedly connected to the left inner wall of the spline space, spline wheels are connected by splines in the spline space, and the spline wheels are parallel to the motor shaft. The spline wheel is connected by a key, the right inner wall of the sub spline space is connected by a tension spring, the spline wheel and the sub spline space can be connected by a spline, and the gear shaft is fixed to the gear shaft. The gears located on the left side of the table are fixedly connected.

The wheel holding device includes a ring gear rotatably connected to the lateral movement block, the ring gear and the gear are meshed with each other, and three air cylinders are arranged in an annular shape on the left end surface of the ring gear. An air space that opens in the direction of the center of the circle is installed in the cylinder, a piston is slidably connected to the air space, and the piston and the inner wall on the side of the air space that is close to the center of the circle are compressed. It is connected by a spring, and a piston rod is fixedly connected to the end face of the piston on the side away from the center of the circle, and the piston rod extends into the explosion-proof space so as to be away from the center of the circle. A holding rod is fixedly connected, a holding plate for holding and fixing a wheel is fixedly connected to the holding rod, and three air boxes are arranged in an annular shape on the right end surface of the ring gear. A sub-air space is installed in the sub-air space, an exhaust electromagnetic valve is installed on the end surface of the sub-air space close to the center of symmetry, and the sub-air space and the air space are communicated with each other by a connecting hole. A connecting hole is rotatably connected to the right inner wall of the sub-air space, an air pump is fixedly connected to the upper end surface of the lateral movement block, and an electromagnetic valve is installed on the left end surface of the air pump. And the sub air space are communicated with each other by a hose.

The nut removing device includes an elevating space installed in the lateral movement block and opened to the left, and an upwardly extending sub-piston is rotatably connected to the lower inner wall of the elevating space to rotatably connect the sub. A knob is fixedly connected to the main screw, an elevating nut is connected to the sub-lead screw by a thread, the elevating nut is slidably connected to the right inner wall of the elevating space, and the left end surface of the elevating nut is connected. The motor base is fixedly connected to the left end surface of the motor base, a sub-motor shaft extending to the left is rotatably connected to the left end surface of the motor base, and the sub-motor shaft is fixedly connected to the right end surface of the motor base. The sub-motors are rotatably connected to the sub-motor shaft, an inner space is rotatably connected to the sub-motor shaft, a sub-air box is installed in the inner space, and the sub-air box and the electromagnetic valve are connected to each other. It is communicated by a secondary hose, a piston cylinder is fixedly connected to the left end surface of the secondary motor shaft, a piston space is installed in the piston cylinder, and an auxiliary exhaust electromagnetic valve is installed on the upper end surface of the piston space. The piston space is installed, a punch hole penetrating the piston space to the left and right is installed on the left inner wall of the piston space, a pressure valve is installed on the lower end surface of the piston space, and the piston space and the auxiliary air box are connected. It is communicated by an air passage hole, a sub-piston is slidably connected in the piston space, the sub-piston and the left inner wall of the piston space are connected by a return spring, and a sub-piston is connected to the left end surface of the sub-piston. The piston rod is fixedly connected, the sub-piston rod extends to the left and penetrates the punch hole, the sub-piston rod and the punch hole are connected by a parallel key, and the piston is connected to the sub-piston rod. The flexible shaft located on the left side of the cylinder is fixedly connected, and the left end surface of the flexible shaft and the holding plate are fixedly connected.

A pin hole penetrating the sub-pinching rod to the left and right is provided in the sub-pinching rod, and a stopper plate located in the explosion-proof space is fixedly connected to the sub-pinching rod, and the stopper plate and the sandwiching plate are fixedly connected. The annular end face of the board is connected by a sub-pulling spring, ten sub-piston spaces are arranged in an annular shape in the holding board, and the sub-piston space is opened so as to be separated from the center of the circle. The sub-elevating space is communicated with the air hole, a slide plug is slidably connected in the sub-piston space, and the slide plug and the right inner wall of the sub-piston space are connected by a spring, and the slide plug is connected. An insertion pin extending to the slide hole is fixedly connected to the left end surface of the above, and the insertion pin can extend to the pin hole.

The effect of the present invention is: In the present invention, the wheel holding mechanism holds and fixes the wheel by three holding plates, the rotating mechanism rotates the wheel, and the distance sensor located in the nut removing mechanism measures the distance to the wheel. By minimizing the distance between the nut and the distance sensor due to the high altitude of the wheel nut placement, the wheel is rotated by the rotation mechanism, the position of the nut is detected by the distance sensor, and the nut removal mechanism After pinching and fixing the nut with the nut pinching mechanism located at, the nut removal work is performed, and the worker does not have to approach the nut during the nut removing process, reducing the risk of injury to the worker due to swelling of the tire during the work process. In addition, since it is not necessary to detect the position of the mat by the visibility of the device, the cost is significantly reduced, and therefore, the present invention can safely remove the inflated tire of the freight car.

In order to explain the present invention in detail with reference to FIGS. 1 to 7 below and to explain the present invention in a convenient manner, the following directions are defined as follows: FIG. 1 is a front view of the apparatus of the present invention and is described in the present application. Each direction is the direction when the device is viewed in the same direction as in FIG.

FIG. 1 is a schematic configuration diagram of the entire invention of the present application. FIG. 2 is a schematic configuration diagram in the AA direction in FIG. FIG. 3 is an enlarged schematic view of the configuration of part B in FIG. FIG. 4 is an enlarged schematic view of the configuration of part C in FIG. FIG. 5 is an enlarged schematic view of the configuration of part D in FIG. FIG. 6 is an enlarged schematic view of the configuration of part E in FIG. FIG. 7 is an enlarged schematic view of the configuration of the F portion in FIG.

The present invention relates to a safe removing device for an inflated tire of a freight car, and is mainly used for wheel removing work, and will be further described below with reference to the drawings of the present invention.

The safe removing device for the inflated tire of the freight car according to the present invention includes the explosion-proof small vehicle 11, the explosion-proof space 12 is installed in the explosion-proof small vehicle 11, and the power is provided in the explosion-proof space 12. The device 101 is installed, the power device 101 can provide left-right movement for pinching the wheels, and the wheels can be rotated, and the wheel pinching device 102 is installed in the power device 101, and the wheel pinching device is installed. 102 is used for sandwiching and fixing the wheels, the power device 101 is provided with a nut removing device 103 for removing nuts, and the nut removing device 103 is provided with a nut sandwiching device 104 for sandwiching and fixing nuts. Once installed, the power device 101 can rotate the nut removing device 103 and the nut holding device 104 to automatically detect the position of the nut on the wheel, and the nut holding device 104 is in the explosion-proof space 12. A nut holding space 78 opened to the left is installed in the holding board 41, and a sub-side located on the right side of the nut holding space 78 in the holding board 41. An elevating space 63 is installed, a slider 64 is slidably connected in the sub elevating space 63, and the slider 64 and the right inner wall of the sub elevating space 63 are connected by a thrust spring 61, and the sub elevating space is connected. A position switch 62 is fixedly connected to the inner wall on the right side of the 63, and a link 77 extending to the left in the nut holding space 78 is fixedly connected to the left end surface of the slider 64 to the link 77. Is fixedly connected to the push plate 76 located in the nut holding space 78, the distance sensor 85 is fixedly connected to the left end surface of the push plate 76, and is subordinate to the inner wall of the nut holding space 78. The electric magnet 74 is fixedly connected, and ten slide holes 83 communicating with the explosion-proof space 12 are arranged in an annular shape on the inner wall of the nut holding space 78, and the auxiliary holding rod 70 can slide in the slide hole 83. A sub-pinching plate 75 located in the nut pinching space 78 is fixedly connected to the sub-pinching rod 70, and the nut pinching device 104 pinches and fixes the nut of the wheel by the sub-pinching plate 75. The position of the nut of the wheel can be detected by rotating the wheel by the power device 101 and measuring the distance between the push plate 76 and the wheel by the distance sensor 85.

Beneficially, the power unit 101 includes a lead screw 14 that is rotatably connected to the right inner wall of the explosion-proof space 12 and extends to the left, and a pulley 13 is fixedly connected to the lead screw 14. A lateral movement block 15 is installed in the explosion-proof space 12, a screw hole 16 opened to the right is installed in the lateral movement block 15, and the lead screw 14 extends into the screw hole 16. A guide hole 80 which is connected to the screw hole 16 by a screw thread and opens to the right is installed in the lateral movement block 15, and a guide rod 79 extending to the left is fixed to the right inner wall of the explosion-proof space 12. The guide rod 79 is located below the lead screw 14, the guide rod 79 extends to the guide hole 80 and is slidably connected to the guide hole 80, and is slidably connected to the guide hole 80 on the right inner wall of the explosion-proof space 12. A motor shaft 33 extending to the left is rotatably connected to the motor shaft 33, the motor shaft 33 is located above the lead screw 14, and is fixedly connected to the motor shaft 33 to the right inner wall of the explosion-proof space 12. The motor 34 is rotatably connected to the motor shaft 33, the sub-pulley 32 is rotatably connected to the motor shaft 33, the sub-pulley 32 and the lead screw 14 are connected by a V-belt 39, and the inside of the sub-pulley 32 is connected. A sub-spline space 31 opened to the left is installed in the space, and a fixing base 25 located on the left side of the sub-pulley 32 is fixedly connected to the upper inner wall of the explosion-proof space 12, and the right end surface of the fixing base 25 is fixedly connected. A gear shaft 24 extending to the left and right is rotatably connected to the gear shaft 24, and a rotary plate 26 located on the right side of the fixed base 25 is fixedly connected to the gear shaft 24. A spline space 29 opened in the spline space 29 is installed, an electric magnet 27 is fixedly connected to the left inner wall of the spline space 29, a spline ring 28 is connected by a spline in the spline space 29, and the spline ring 28 is connected to the spline space 29. The spline wheel 28 is connected to the motor shaft 33 by a parallel key, the right inner wall of the sub spline space 31 is connected by a tension spring 30, and the spline wheel 28 and the sub spline space 31 are connected by a spline. A gear 23 located on the left side of the fixed base 25 is fixedly connected to the gear shaft 24, and the gear shaft 24 and the gear 23 are driven and rotated by the motor 34 to rotate the wheels. The necessary turning motion can be realized.

Beneficially, the wheel holding device 102 includes a ring gear 17 rotatably connected to the lateral movement block 15, the ring gear 17 and the gear 23 are in mesh with each other, and the left end surface of the ring gear 17 has three. Two air cylinders 18 are arranged in an annular shape, an air space 46 opened in the direction of the center of the circle is installed in the air cylinder 18, and a piston 47 is slidably connected in the air space 46, and the piston is connected. 47 and the inner wall on the side close to the center of the air space 46 are connected by a compression spring 45, and the piston rod 48 is fixedly connected to the end surface of the piston 47 on the side away from the center of the piston. The holding rod 40 is fixedly connected to the piston rod 48, and the holding plate 19 for holding and fixing the wheels to the holding rod 40 extends into the explosion-proof space 12 so that the 48 is separated from the center of the circle. Are fixedly connected, three air boxes 43 are arranged in an annular shape on the right end surface of the ring gear 17, a sub air space 42 is installed in the air box 43, and a center of symmetry in the sub air space 42. An exhaust electromagnetic valve 82 is installed on the end surface on the side close to the sub air space 42, the sub air space 42 and the air space 46 are communicated with each other by a connecting hole 44, and the connecting hole 44 rotates with the right inner wall of the sub air space 42. The air pump 37 is fixedly connected to the upper end surface of the lateral movement block 15, and the electromagnetic valve 36 is installed on the left end surface of the air pump 37, and the electromagnetic valve 36 and the auxiliary air space 42 are connected to each other. Is communicated by the hose 35, and the piston 47 moves so as to approach the center of the circle, so that the holding plate 19 can hold and fix the wheel.

Beneficially, the nut removing device 103 includes an elevating space 20 installed in the lateral movement block 15 and opened to the left, and a sub-piston extending upward on the lower inner wall of the elevating space 20. The 49 is rotatably connected, the knob 51 is fixedly connected to the sub-lead screw 49, the elevating nut 21 is connected to the sub-lead screw 49 by a thread, and the elevating nut 21 is connected to the elevating space 20. The motor base 50 is fixedly connected to the left end surface of the elevating nut 21 and the auxiliary motor shaft 52 extending to the left is rotatable on the left end surface of the motor base 50. A sub-motor 22 that is connected and fixedly connected to the right end surface of the motor base 50 is rotatably connected to the sub-motor shaft 52, and an internal space 54 is rotatably connected to the sub-motor shaft 52. A sub air box 53 is installed in the inner space 54, the sub air box 53 and the electromagnetic valve 36 are communicated with each other by a sub hose 38, and a piston cylinder 84 is provided on the left end surface of the sub motor shaft 52. It is fixedly connected, a piston space 56 is installed in the piston cylinder 84, a sub-exhaust electromagnetic valve 87 is installed on the upper end surface of the piston space 56, and the piston is installed on the left inner wall of the piston space 56. A punch hole 86 penetrating the space 56 to the left and right is installed, a pressure valve 55 is installed on the lower end surface of the piston space 56, and the piston space 56 and the sub air box 53 are communicated with each other by an air passage hole 81. A sub-piston 57 is slidably connected to the piston space 56, the sub-piston 57 and the left inner wall of the piston space 56 are connected by a return spring 59, and a sub-piston 57 is connected to the left end surface of the sub-piston 57. The piston rod 58 is fixedly connected, the sub-piston rod 58 extends to the left and penetrates the punch hole 86, and the sub-piston rod 58 and the punch hole 86 are connected by a parallel key, and the sub-piston A flexible shaft 60 located on the left side of the piston cylinder 84 is fixedly connected to the rod 58, the left end surface of the flexible shaft 60 and the holding plate 41 are fixedly connected, and the submotor 22 is the sub. By rotating the motor shaft 52 and moving the sub-piston 57 to the right, the spiral motion required to remove the nut can be realized.

To be beneficial, the sub-pinching rod 70 is provided with a pin hole 73 that penetrates the sub-pinching rod 70 to the left and right, and the sub-pinching rod 70 is fixed with a stopper plate 72 located in the explosion-proof space 12. The stop plate 72 and the annular end face of the holding plate 41 are connected by a secondary tension spring 71, and ten auxiliary piston spaces 67 are arranged in an annular shape in the holding plate 41. The piston space 67 is opened so as to be separated from the center of the circle, the sub-piston space 67 and the sub-elevating space 63 are communicated with each other by an air hole 65, and a slide plug 68 is slidably connected in the sub-piston space 67. The slide plug 68 and the right inner wall of the sub-piston space 67 are connected by a spring 66, and an insertion pin 69 extending to the left in the slide hole 83 is fixedly connected to the left end surface of the slide plug 68. Since the insertion pin 69 can extend into the pin hole 73, the placement altitude of the nut on the wheel is high, and the shortest distance measured by the distance sensor 85 is the distance to the nut position, the gear 23 The ring gear 17 is driven to rotate, and the wheel is driven to rotate, and the position of the nut of the wheel is automatically detected by measuring the distance using the distance sensor 85.

Hereinafter, the procedure for using the present invention will be described in detail with reference to FIGS. 1 to 7.

First, the lateral movement block 15 is in the right limit position, the solenoid 27 is not energized, and the spline wheel 28 is in the right limit position due to the action of the pulling force of the tension spring 30, and the spline wheel 28 and the sub-spline space 31 Is connected by a spline, the exhaust solenoid valve 82 is closed, the piston 47 is located farthest from the center of the circle due to the thrust action of the compression spring 45, and the sub-piston 57 is moved to the right by the thrust action of the return spring 59. At the limit position, the slide plug 68 is at the left limit position due to the thrust action of the spring 66, the insertion pin 69 is inserted into the pin hole 73 to restrict the movement of the sub-holding rod 70, and the sub-holding plate 75 is from the center of the circle. Located at the farthest place, the slider 64 is in the left limit position due to the thrust action of the thrust spring 61, the solenoid valve 36 communicates the air pump 37 and the hose 35, and the air pump 37 and the auxiliary hose 38 do not communicate with each other. , The sub-electromagnet 74 is not energized, and the sub-exhaust solenoid valve 87 is in a closed state.

When operating, the knob 51 is manually turned, the sub-lead screw 49 is driven by the knob 51 to rotate, and the elevating nut 21 is driven by the sub-lead screw 49 to move up and down, thereby moving the holding board 41 up and down. Adjusted to correspond to the diameter of the annular arrangement of nuts on different wheels,
After that, lift the vehicle so that it floats in the air with a jack, push the manual explosion-proof small vehicle 11 to move it to the left, and move it to the wheel position.
After that, the motor 34 rotates the spline wheel 28 via the connection by the parallel key, the sprue wheel 28 rotates the sub pulley 32 via the spline connection with the sub spline space 31, and the sub pulley 32 is connected by the V belt 39. The pulley 13 is rotated, the pulley 13 rotates the lead screw 14, the lead screw 14 moves the lateral movement block 15 to the left through the connection with the screw hole 16 by a screw thread, and the lateral movement block 15 is a ring gear 17. And the air cylinder 18 is moved to the left, the tire is positioned between the holding plates 19, and then the air pump 37 operates to generate an air flow, which is an electromagnetic valve 36, a hose 35, an auxiliary air space 42, and a connecting hole. It is transported into the air space 46 via 44 to move the piston 47 so as to approach the center of the circle, and the piston 47 moves the holding rod 40 and the holding plate 19 so as to approach the center of the circle by the piston rod 48, and holds the piston 47. The wheels are pinched and fixed to the plate 19, after which the motor 34 stops and
After that, the solenoid valve 36 communicates the sub-hose 38 with the air pump 37, the hose 35 and the air pump 37 do not communicate with each other, and the airflow generated by the air pump 37 flows through the solenoid valve 36, the sub-hose 38, the sub-air box 53, and the air passage hole. Transported into the piston space 56 via 81, the sub-piston 57 travels a certain distance to the left and approaches the wheels, after which the air pump 37 ceases to operate.
After that, the electromagnet 27 is energized to attract the spline wheel 28, the spline wheel 28 and the spline space 29 are connected by a spline, the motor 34 operates again to rotate the motor shaft 33, and the motor shaft 33 is operated by a parallel key. The spline wheel 28 is rotated via the connection, the spline wheel 28 rotates the turntable 26 via the spline connection with the spline space 29, the turntable 26 rotates the gear shaft 24 and the gear 23, and the gear 23 By rotating the ring gear 17 by meshing, the wheels are rotated,
When the distance sensor 85 detects that the distance between the push plate 76 and the wheel is minimized and the position of the nut on the wheel, the motor 34 stops rotating, the air pump 37 operates to generate an air flow, and the auxiliary piston The 57 is moved to the left, the push plate 76 is brought into contact with the nut of the wheel, the nut of the wheel moves the push plate 76 to the right, and the push plate 76 moves the slider 64 to the right by the link 77. The airflow generated by the slider 64 moving to the right passes through the air hole 65 and is transported into the sub-piston space 67, moves the slide plug 68 to the right, and the slider 64 moves to the right. After reacting the position switch 62, the slide stopper 68 moves to the right to the right limit position, the insertion pin 69 is separated from the contact with the pin hole 73, and the sub-pinching rod is pulled by the pulling force of the sub-pulling spring 71. 70 moves closer to the center of the circle, the sub-holding plate 75 holds and fixes the nut of the tire, and after the position switch 62 reacts, the air pump 37 stops operating, the sub-motor 22 operates, and the sub-motor shaft 52 operates. The sub-motor shaft 52 rotates the piston cylinder 84, the piston cylinder 84 rotates the sub-piston rod 58 via the connection of the punch hole 86 and the sub-piston rod 58 by a parallel key, and the sub-piston rod 58 By rotating the holding plate 41 with the flexible shaft 60, the rotational movement required to remove the wheel nut can be realized, and when the wheel nut is removed, the wheel nut is held by the push plate 76 and the slider 64. The 41 is moved to the right, the holding plate 41 is moved to the right by the flexible shaft 60 and the sub-piston rod 58, and the sub-piston 57 is moved to the right, so that the pressure inside the piston space 56 rises and the pressure valve. 55 operates and removes the nut by achieving continuous movement of the holding board 41 to the right.
After removing the nut, the sub-electromagnet 74 energizes and attracts the sub-holding plate 75, the sub-holding plate 75 releases the nut of the removed tire, and the slider 64 moves to the left by the thrust action of the thrust spring 61. The push plate 76 pushes out the nut of the removed tire from the nut holding space 78, and the sub-pulling spring 71 returns the sub-holding rod 70 away from the center of the circle by the action of the spring 66. , The slide plug 68 moves to the left and returns, the insertion pin 69 is inserted into the pin hole 73 again, and then the auxiliary electric magnet 74 loses power.
The motor 34 operates again to rotate the ring gear 17 and the wheels, perform the next bolt removal work, remove all the bolts, then manually move the explosion-proof vehicle 11 to the right, remove the wheels, and then remove the wheels. The sub-exhaust solenoid valve 87 and the exhaust solenoid valve 82 operate, the sub-piston 57 moves to the right and returns due to the action of the return spring 59, and the piston 47 moves away from the center of the circle by the action of the compression spring 45. The holding plate 19 no longer holds and fixes the wheels, and the auxiliary motor 22, the motor 34, and the air pump 37 stop.
It is not necessary for the worker to approach the inflated tire during the removal process, and even if the tire inflates and explodes, there is an explosion-proof space 12 in the traveling direction of the shock wave to stop the shock wave, so that safe removal work is possible.

By the above method, those skilled in the art can make various modifications based on the working conditions within the scope of the present invention.

Claims (5)

Including the explosion-proof vehicle, an explosion-proof space is installed in the explosion-proof vehicle, a power device is installed in the explosion-proof space, and the power device can provide left-right movement for sandwiching wheels, and The wheels can be rotated, the power unit is equipped with a wheel pinching device, the wheel pinching device is used to pinch and fix the wheels, and the power unit is equipped with a nut removing device for removing nuts. A nut pinching device for pinching and fixing the nut is installed in the nut removing device, and the power device automatically detects the position of the nut on the wheel by rotating the nut removing device and the nut pinching device. The nut holding device can include a holding board installed in the explosion-proof space, a nut holding space opened to the left is installed in the holding board, and the holding board is filled with the nut holding space. A sub-elevating space located on the right side of the nut holding space is installed, a slider is slidably connected to the sub-elevating space, and the slider and the right inner wall of the sub-elevating space are connected by a thrust spring. A position switch is fixedly connected to the inner wall on the right side of the sub-elevating space, a link extending to the left in the nut holding space is fixedly connected to the left end surface of the slider, and the nut is connected to the link. A push plate located in the holding space is fixedly connected, a distance sensor is fixedly connected to the left end surface of the push plate, and a secondary electric magnet is fixedly connected to the inner wall of the nut holding space. Ten slide holes communicating with the explosion-proof space are arranged in an annular shape on the inner wall of the nut holding space, a sub-holding rod is slidably connected to the slide hole, and the nut holding space is connected to the sub-holding rod. The sub-holding plate located inside is fixedly connected, the nut holding device can hold and fix the nut of the wheel by the sub-holding plate, the wheel is rotated by the power device, and the push plate is used by the distance sensor. A safe removal device for inflated tires of freight cars that can detect the position of the nut on the wheel by measuring the distance between the wheel and the wheel. The power unit includes a lead screw that is rotatably connected to the right inner wall of the explosion-proof space and extends to the left, a pulley is fixedly connected to the lead screw, and a lateral movement block is contained in the explosion-proof space. Is installed, a screw hole opened to the right is installed in the lateral movement block, the base screw extends to the screw hole and is connected to the screw hole by a screw thread, and is connected in the lateral movement block. Is provided with a guide hole opened to the right, a guide rod extending to the left is fixedly connected to the inner wall on the right side of the explosion-proof space, the guide rod is located below the lead screw, and the guide rod Extends to the guide hole and is slidably connected to the guide hole, a motor shaft extending to the left is rotatably connected to the right inner wall of the explosion-proof space, and the motor shaft is located above the lead screw. A motor fixedly connected to the inner wall on the right side of the explosion-proof space is rotatably connected to the motor shaft, and a sub-pulley is rotatably connected to the motor shaft. A secondary spline space that is connected by a V-belt and opens to the left is installed in the secondary pulley, and a fixing base located on the left side of the secondary pulley is fixedly connected to the upper inner wall of the explosion-proof space. A gear shaft extending to the left and right is rotatably connected to the right end surface of the fixed base, a rotating disc located on the right side of the fixed base is fixedly connected to the gear shaft, and the right side is inside the rotating disc. A spline space that opens toward the side is installed, an electromagnet is fixedly connected to the left inner wall of the spline space, spline wheels are connected by splines in the spline space, and the spline wheels are parallel to the motor shaft. The spline wheel is connected by a key, the right inner wall of the sub spline space is connected by a tension spring, the spline wheel and the sub spline space can be connected by a spline, and the gear shaft is fixed to the gear shaft. The safe removing device for inflated tires of a freight car according to claim 1, wherein the gears located on the left side of the table are fixedly connected. The wheel holding device includes a ring gear rotatably connected to the lateral movement block, the ring gear and the gear are meshed with each other, and three air cylinders are arranged in an annular shape on the left end surface of the ring gear. An air space that opens in the direction of the center of the circle is installed in the cylinder, a piston is slidably connected to the air space, and the piston and the inner wall on the side of the air space that is close to the center of the circle are compressed. It is connected by a spring, and a piston rod is fixedly connected to the end face of the piston on the side away from the center of the circle, and the piston rod extends into the explosion-proof space so as to be away from the center of the circle. A holding rod is fixedly connected, a holding plate for holding and fixing a wheel is fixedly connected to the holding rod, and three air boxes are arranged in an annular shape on the right end surface of the ring gear. A sub-air space is installed in the sub-air space, an exhaust electromagnetic valve is installed on the end surface of the sub-air space close to the center of symmetry, and the sub-air space and the air space are communicated with each other by a connecting hole. A connecting hole is rotatably connected to the right inner wall of the sub-air space, an air pump is fixedly connected to the upper end surface of the lateral movement block, and an electromagnetic valve is installed on the left end surface of the air pump. The safe removing device for an inflated tire of a freight car according to claim 2, wherein the sub-air space and the sub-air space are communicated with each other by a hose. The nut removing device includes an elevating space installed in the lateral movement block and opened to the left, and an upwardly extending sub-piston is rotatably connected to the lower inner wall of the elevating space to rotatably connect the sub. A knob is fixedly connected to the main screw, an elevating nut is connected to the sub-lead screw by a thread, the elevating nut is slidably connected to the right inner wall of the elevating space, and the left end surface of the elevating nut is connected. The motor base is fixedly connected to the left end surface of the motor base, a sub-motor shaft extending to the left is rotatably connected to the left end surface of the motor base, and the sub-motor shaft is fixedly connected to the right end surface of the motor base. The sub-motors are rotatably connected to the sub-motor shaft, an inner space is rotatably connected to the sub-motor shaft, a sub-air box is installed in the inner space, and the sub-air box and the electromagnetic valve are connected to each other. It is communicated by a secondary hose, a piston cylinder is fixedly connected to the left end surface of the secondary motor shaft, a piston space is installed in the piston cylinder, and an auxiliary exhaust electromagnetic valve is installed on the upper end surface of the piston space. The piston space is installed, a punch hole penetrating the piston space to the left and right is installed on the left inner wall of the piston space, a pressure valve is installed on the lower end surface of the piston space, and the piston space and the auxiliary air box are connected. It is communicated by an air passage hole, a sub-piston is slidably connected in the piston space, the sub-piston and the left inner wall of the piston space are connected by a return spring, and a sub-piston is connected to the left end surface of the sub-piston. The piston rod is fixedly connected, the sub-piston rod extends to the left and penetrates the punch hole, the sub-piston rod and the punch hole are connected by a parallel key, and the piston is connected to the sub-piston rod. The inflated tire of a freight car according to claim 2, wherein a flexible shaft located on the left side of the cylinder is fixedly connected, and the left end surface of the flexible shaft and the holding plate are fixedly connected. Safe removal device for. A pin hole penetrating the sub-pinching rod to the left and right is provided in the sub-pinching rod, and a stopper plate located in the explosion-proof space is fixedly connected to the sub-pinching rod, and the stopper plate and the sandwiching plate are fixedly connected. The annular end face of the board is connected by a sub-pulling spring, ten sub-piston spaces are arranged in an annular shape in the holding board, and the sub-piston space is opened so as to be separated from the center of the circle. The sub-elevating space is communicated with the air hole, a slide plug is slidably connected in the sub-piston space, and the slide plug and the right inner wall of the sub-piston space are connected by a spring, and the slide plug is connected. The bulging tire of a freight car according to claim 1, wherein an insertion pin extending to the left side of the slide hole is fixedly connected to the left end surface of the vehicle, and the insertion pin can extend to the pin hole. Safe removal device for.

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