Foldable tire removing device

Abstract

A foldable tire release device comprises a portal frame, a pre-pressing device, a chassis, a distance adjusting rod fixing pin shaft, a foldable single connecting lug, a connecting lug bottom connecting plate, a knob switch valve, an oil tank, a hand pump, trundles and a traction rod which are arranged in a matched mode. The portal frame comprises a portal frame framework, a portal frame top round pipe and a pre-pressing device connecting plate are arranged on the portal frame framework, and the portal frame top round pipe is used for being connected with a distance adjusting rod fixing pin shaft so as to be matched with the pre-pressing device connecting plate to fixedly connect the portal frame framework with the pre-pressing device; a cross beam limiting piece is arranged on the inner side of the portal frame framework and matched with a cross beam of the pre-pressing device so as to limit the pre-pressing device to ascend or descend in the vertical direction of the portal frame framework.

Description

Technical field:

[0001] The utility model relates to a foldable tire removing device. Background technology:

[0002] The tire stripping device is a special support equipment for the disassembly and assembly of aircraft wheels. Since the sizes of the aircraft's front wheels and main wheels are very different, the wheel sizes of different models also vary greatly. Generally speaking, the larger the wheel size, the greater the tire stripping force required to separate the tread from the hub.

[0003] Generally speaking, the tire removal device can realize the removal of tires of different diameters and thicknesses, and has a simple structure, easy use, high work efficiency, and low failure rate. To a certain extent, it can replace the original manual tire removal and electric tire removal.

[0004] Since the force required in actual use is relatively large, the tire removal method that relies solely on human force consumes a lot of physical strength for the staff. Therefore, a gear structure is often used for transmission, and downward pressure is applied to complete the tire removal action, which will produce a large sliding friction resistance and inconvenient operation. At the same time, in order to facilitate the conversion of work locations, the tire removal device needs to be easy to transport, but most of the existing tire removal devices are fixed frame structures, which rely on hydraulic transmission to apply force to remove the aircraft tire, which wastes a lot of space and is not convenient for transfer security. Utility model content:

[0005] The embodiment of the utility model provides a foldable tire removal device with a reasonable structural design. Based on the mutual cooperation of multiple functional components, it adopts a foldable overall structure, which can effectively reduce the pressure exerted by the staff during the operation, reduce the physical consumption and work intensity of the staff, and realize the folding of the gantry. It can be applied to the removal of all tires with similar aircraft tire structures, while saving the overall space of the device, facilitating transportation and transfer guarantee, having strong versatility, being easy to promote and popularize, and solving the problems existing in the prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] A foldable tire removal device comprises a gantry, a pre-pressing device, a chassis, a fixed pin shaft of a pitch rod, a foldable single lug, a connecting plate at the bottom of the lug, a knob switch valve, an oil tank, a hand pump, casters and a traction rod.

[0008] The gantry frame includes a gantry frame frame, on which a gantry frame top round tube and a pre-pressing device connecting plate are provided, wherein the gantry frame top round tube is used to connect the distance adjustment rod fixing pin shaft, so as to cooperate with the pre-pressing device connecting plate to fix the gantry frame and the pre-pressing device together; a crossbeam limiting plate is provided on the inner side of the gantry frame frame, and the crossbeam limiting plate is arranged in cooperation with the crossbeam of the pre-pressing device to limit the pre-pressing device from rising or falling in the vertical direction of the gantry frame frame;

[0009] The pre-loading device includes a distance-adjusting rod, which is installed on the top round tube of the gantry through a distance-adjusting rod fixing pin to fix the pre-loading device to the gantry; a hydraulic actuator and a rocker arm assembly are provided below the distance-adjusting rod to control the raising or lowering of the pre-loading device; the hydraulic actuator is connected to the crossbeam through a tension spring to complete the pressure relief under the action of the tension spring so that the hydraulic actuator returns to the initial position; a pressure claw is slidably provided below the crossbeam, and the pressure claw is used to apply two local uniformly distributed loads to the pressure ring, and the pressure ring converts the local uniformly distributed loads into a uniformly distributed load on the pressure ring and applies it to the tire, and the tire is subjected to pressure so that the tire is separated from the wheel hub.

[0010] A folding single ear is connected to the chassis through an ear bottom connecting plate, and the folding single ear is fixedly connected to the bottom of the gantry, so that the gantry is moved as a whole to a central position relative to the chassis and fixed, thereby realizing the folding of the gantry.

[0011] The chassis comprises a tray, on which hoisting components and a chassis frame are evenly distributed, a slide plate is arranged on the chassis frame, and a guide groove is arranged on the slide plate, so that the gantry can slide back and forth on the slide plate of the chassis.

[0012] A matching knob switch valve, oil tank and hand pump are connected to the gantry. The knob switch valve is arranged between the hydraulic actuator and the oil tank. When the tire is being demolded, the knob switch valve is closed, and the hand pump is dragged to supply oil, so that the inner cylinder of the hydraulic actuator extends and the pressure claw is pressed down at the same time. The pressure claw applies two local uniform loads to the pressure ring. The pressure ring converts the local uniform loads into a uniform load on the pressure ring and applies it to the tire. The tire is pressurized so that the tire is separated from the wheel hub. After the tire is demolded, the knob switch valve is opened, the hydraulic actuator is connected to the oil tank, and the pressure is released under the action of the tension spring, and the hydraulic actuator returns to its initial position.

[0013] A traction rod is connected to the chassis, and casters are installed at the bottom of the chassis. The traction rod and the casters cooperate to realize short-distance traction transportation.

[0014] The pre-compression device uses a hand pump as a power source when working, and uses the elastic force of a tension spring as a power source when restoring.

[0015] When the tire stripping device is used or not in use, loosen the folding single lug and the connecting plate at the bottom of the lug, slide the gantry from the middle to the end, loosen the folding single lug and the fixing structure at the bottom of the gantry, and lay the gantry down.

[0016] The utility model adopts the above structure, connects the pitch-adjusting rod fixing pin shaft through the round tube on the top of the gantry, and cooperates with the pre-pressing device connecting plate to fix the gantry frame and the pre-pressing device; cooperates with the crossbeam of the pre-pressing device through the crossbeam limiting plate to limit the pre-pressing device to rise or fall in the vertical direction of the gantry frame; is connected with the crossbeam through the tension spring, and completes the pressure relief under the action of the tension spring, so that the hydraulic actuator returns to the initial position; is fixedly connected with the bottom of the gantry through the folding single ear, so that the gantry can be moved as a whole to the center position relative to the chassis and fixed, so as to realize the folding of the gantry, and has the advantages of simple operation, convenient carrying and wide range of general use. Description of the drawings:

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the gantry of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the pre-pressing device of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the chassis of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the foldable single lug and the lug bottom connecting plate of the utility model.

[0022] Figure 6 It is a schematic diagram of tire removal of the utility model.

[0023] Figure 7 It is a folding schematic diagram of the utility model.

[0024] In the figure, 1, gantry, 2, pre-tensioning device, 3, chassis, 4, distance adjusting rod fixing pin, 5, folding single ear, 6, ear bottom connecting plate, 7, knob switch valve, 8, fuel tank, 9, hand pump, 10, caster, 11, traction rod, 12, pressure ring, 13, tire, 101, gantry top round tube, 102, pre-tensioning device connecting plate, 103, gantry frame, 104, crossbeam limiter, 201, distance adjusting rod, 202, hydraulic actuator, 203, rocker arm assembly, 204, crossbeam, 205, pressure claw, 206, tension spring, 301, pallet, 302, lifting assembly, 303, chassis frame, 304, slide plate. Specific implementation method:

[0025] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0026] like Figure 1-7 As shown in the figure, a foldable tire removal device includes a gantry 1, a pre-pressing device 2, a chassis 3, a pitch rod fixing pin 4, a folding single ear 5, a connecting plate 6 at the bottom of the ear, a knob switch valve 7, an oil tank 8, a hand pump 9, a caster 10 and a traction rod 11;

[0027] The gantry 1 includes a gantry frame, on which a gantry top round tube 101 and a pre-pressing device connecting plate 102 are provided, wherein the gantry top round tube 101 is used to connect the pitch rod fixing pin 4, so as to cooperate with the pre-pressing device connecting plate 102 to fix the gantry frame with the pre-pressing device 2; a crossbeam limiting piece 104 is provided on the inner side of the gantry frame, and the crossbeam limiting piece 104 is arranged in cooperation with the crossbeam 204 of the pre-pressing device 2 to limit the pre-pressing device 2 to rise or fall in the vertical direction of the gantry frame;

[0028] The pre-pressing device 2 includes a distance-adjusting rod 201, which is installed on the top round tube 101 of the gantry through the distance-adjusting rod fixing pin 4 to fix the pre-pressing device 2 to the gantry; a hydraulic actuator 202 and a rocker assembly 203 are provided below the distance-adjusting rod 201 to control the raising or lowering of the pre-pressing device 2; the hydraulic actuator 202 is connected to the crossbeam 204 through a tension spring 206 to complete the pressure relief under the action of the tension spring 206, so that the hydraulic actuator 202 returns to the initial position; a pressure claw 205 is slidably provided below the crossbeam 204, and the pressure claw 205 is used to apply two local uniformly distributed loads to the pressure ring 12, and the pressure ring 12 converts the local uniformly distributed loads into uniformly distributed loads on the pressure ring and applies them to the tire 13, and the tire 13 is subjected to pressure so that the tire is separated from the wheel hub.

[0029] A foldable single ear 5 is connected to the chassis 3 through the ear bottom connecting plate 6, and the foldable single ear 5 is fixedly connected to the bottom of the gantry, so that the gantry can be moved as a whole to the center position relative to the chassis 3 and fixed, thereby realizing the folding of the gantry.

[0030] The chassis 3 comprises a tray 301 , on which a hoisting assembly 302 and a chassis frame 303 are evenly distributed, a slide plate 304 is provided on the chassis frame, and a guide groove is provided on the slide plate 304 , so that the gantry 1 can slide back and forth on the slide plate of the chassis 3 .

[0031] The gantry 1 is connected with a matching knob switch valve 7, an oil tank 8 and a hand pump 9. The knob switch valve 7 is arranged between the hydraulic actuator 202 and the oil tank 8. When the tire is being removed, the knob switch valve 7 is closed, and the hand pump 9 is dragged to supply oil, so that the inner cylinder of the hydraulic actuator 202 is extended, and at the same time, the pressure claw 205 is pressed down. The pressure claw 205 applies two local uniform loads to the pressure ring. The pressure ring converts the local uniform loads into a uniform load on the pressure ring and applies it to the tire. The tire is pressurized so that the tire is separated from the wheel hub; after the tire is removed, the knob switch valve 7 is opened, the hydraulic actuator 202 is connected to the oil tank 8, and the pressure is released under the action of the tension spring 206, and the hydraulic actuator 206 returns to its initial position.

[0032] A traction rod 11 is connected to the chassis 3, and casters 10 are installed at the bottom of the chassis 3. The traction rod and the casters cooperate to achieve short-distance traction transportation.

[0033] The pre-compression device 2 uses the hand pump 9 as a power source when working, and uses the elastic force of the tension spring 206 as a power source when restoring.

[0034] When the tire stripping device is used or not in use, loosen the folding single lug 5 and the lug bottom connecting plate 6, slide the gantry 1 from the middle to the end, loosen the folding single lug and the gantry bottom fixing structure, and lay the gantry down.

[0035] The working principle of a foldable tire removal device in an embodiment of the utility model is: based on the mutual cooperation of multiple functional components, a foldable overall structure is adopted, which can effectively reduce the pressure exerted by the staff during the operation, reduce the physical consumption and work intensity of the staff, and realize the folding of the gantry. It can be applied to the removal of all tires with similar aircraft tire structures, while saving the overall space of the device, facilitating transportation and transfer guarantee, having strong versatility, and easy to promote and popularize.

[0036] Some existing tire removal devices often use a fixed frame structure, relying on hydraulic transmission to apply force or relying on a gear structure for transmission, which requires a lot of physical strength, is too cumbersome to operate, and cannot fully utilize the corresponding space.

[0037] The overall solution mainly includes a gantry, a pre-tensioning device, a chassis, a fixed pin shaft of a distance adjusting rod, a folding single ear, a connecting plate at the bottom of the ear, a knob switch valve, an oil tank, a hand pump, casters and a traction rod.

[0038] The gantry includes a gantry frame, on which a gantry top round tube and a pre-pressing device connecting plate are provided, wherein the gantry top round tube is used to connect the fixed pin of the pitch-adjusting rod, so as to cooperate with the pre-pressing device connecting plate to fix the gantry frame and the pre-pressing device; a crossbeam limiting plate is provided on the inner side of the gantry frame, and the crossbeam limiting plate is arranged in cooperation with the crossbeam of the pre-pressing device to limit the pre-pressing device from rising or falling in the vertical direction of the gantry frame;

[0039] The pre-loading device includes a distance-adjusting rod, which is installed on the top round tube of the gantry through a fixing pin of the distance-adjusting rod to fix the pre-loading device to the gantry; a hydraulic actuator and a rocker arm assembly are provided below the distance-adjusting rod to control the raising or lowering of the pre-loading device; the hydraulic actuator is connected to the crossbeam through a tension spring to complete the pressure relief under the action of the tension spring so that the hydraulic actuator returns to its initial position; a pressure claw is provided below the crossbeam, and the pressure claw is used to apply two local uniformly distributed loads to the pressure ring, and the pressure ring converts the local uniformly distributed loads into uniformly distributed loads on the pressure ring and applies them to the tire, and the tire is subjected to pressure so that the tire is separated from the wheel hub.

[0040] Preferably, a foldable single ear is connected to the chassis through the ear bottom connecting plate, and the foldable single ear is fixedly connected to the bottom of the gantry, so that the gantry can be moved as a whole to the center position relative to the chassis and fixed, thereby realizing the folding of the gantry.

[0041] In the present application, the chassis includes a pallet on which hoisting components and a chassis frame are evenly distributed, a slide plate is provided on the chassis frame, and a guide groove is provided on the slide plate so that the gantry can slide back and forth on the slide plate of the chassis.

[0042] The power components of the present application are a knob switch valve, an oil tank and a hand pump. The knob switch valve is arranged between the hydraulic actuator cylinder and the oil tank. When performing the tire removal action, the knob switch valve is closed, and the hand pump is dragged to supply oil, so that the inner cylinder of the hydraulic actuator cylinder is extended, and at the same time, the pressure claw is driven to press down. The pressure claw applies two local uniformly distributed loads to the pressure ring. The pressure ring converts the local uniformly distributed loads into a uniformly distributed load on the pressure ring and applies it to the tire. The tire is under pressure and thus separated from the wheel hub; after the tire removal action is completed, the knob switch valve is opened, the hydraulic actuator cylinder is connected to the oil tank, and the pressure is released under the action of the tension spring, and the hydraulic actuator cylinder returns to its initial position.

[0043] In actual use, first use the towing rod to pull the equipment to a suitable position, lock the casters, unfold the equipment, adjust the gantry to a vertical state, fold the single lug and fix it to the bottom of the gantry, and move the gantry as a whole to the center position relative to the chassis and fix it. According to the thickness of the tire, press the rocker assembly of the pre-tensioning device to raise or lower the pre-tensioning device, and fix it with the pitch rod fixing pin.

[0044] Slide the pressure claw on the crossbeam, adjust it to the appropriate position according to the diameter of the tire and fix it. Put the tire in the center of the chassis, place the appropriate pressure ring on the tire, and keep it coaxial.

[0045] First, close the knob switch valve in the hydraulic system and shake the hand pump to supply oil to the system. At this time, the inner cylinder of the hydraulic actuator in the pre-tensioning device extends and drives the pressure claw to press down at the same time. The pressure claw applies two local uniform loads to the pressure ring. The pressure ring converts the local uniform loads into a uniform load on the pressure ring and applies it to the tire. The tire is under pressure and is separated from the wheel hub.

[0046] After the device's tire stripping action is completed, open the knob switch valve in the power assembly. At this time, the hydraulic actuator in the pre-compression device is connected to the oil tank, and the pressure is released under the action of the spring, and the actuator returns to its initial position.

[0047] When the equipment is finished or not in use, loosen the folding single lug and the connecting plate at the bottom of the lug, slide the gantry from the middle to the end, loosen the folding single lug and the fixing structure at the bottom of the gantry, and lay the gantry down.

[0048] It is particularly noted that the traction rod of the present application cooperates with the casters to realize short-distance traction and transportation of the device, making it convenient to move and operate.

[0049] To sum up, a foldable tire removal device in the embodiment of the utility model is based on the mutual cooperation of multiple functional components and adopts a foldable overall structure. It can effectively reduce the pressure exerted by the staff during the operation, reduce the physical consumption and work intensity of the staff, and realize the folding of the gantry. It can be applied to the disassembly of all tires with similar aircraft tire structures. At the same time, it saves the overall space of the device, facilitates transportation and transfer guarantee, has strong versatility, and is easy to promote and popularize.

[0050] The above-mentioned specific implementation manner cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or change made to the implementation manner of the present utility model falls within the protection scope of the present utility model.

[0051] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A foldable tire removal device, Features: It includes a gantry, a pre-pressing device, a chassis, a fixed pin shaft of a pitch rod, a folding single lug, a connecting plate at the bottom of the lug, a knob switch valve, a fuel tank, a hand pump, casters and a traction rod; The gantry frame includes a gantry frame frame, on which a gantry frame top round tube and a pre-pressing device connecting plate are provided, wherein the gantry frame top round tube is used to connect the distance adjustment rod fixing pin shaft, so as to cooperate with the pre-pressing device connecting plate to fix the gantry frame and the pre-pressing device together; a crossbeam limiting plate is provided on the inner side of the gantry frame frame, and the crossbeam limiting plate is arranged in cooperation with the crossbeam of the pre-pressing device to limit the pre-pressing device from rising or falling in the vertical direction of the gantry frame frame; The pre-loading device includes a distance-adjusting rod, which is installed on the top round tube of the gantry through a distance-adjusting rod fixing pin to fix the pre-loading device to the gantry; a hydraulic actuator and a rocker arm assembly are provided below the distance-adjusting rod to control the raising or lowering of the pre-loading device; the hydraulic actuator is connected to the crossbeam through a tension spring to complete the pressure relief under the action of the tension spring so that the hydraulic actuator returns to the initial position; a pressure claw is slidably provided below the crossbeam, and the pressure claw is used to apply two local uniformly distributed loads to the pressure ring, and the pressure ring converts the local uniformly distributed loads into a uniformly distributed load on the pressure ring and applies it to the tire, and the tire is subjected to pressure so that the tire is separated from the wheel hub.

2. A foldable tire removal device according to claim 1, Features: A folding single lug is connected to the chassis through a lug bottom connecting plate, and the folding single lug is fixedly connected to the bottom of the gantry, so that the gantry is moved as a whole to a central position relative to the chassis and fixed, thereby realizing the folding of the gantry; The chassis comprises a tray, on which hoisting components and a chassis frame are evenly distributed, a slide plate is arranged on the chassis frame, and a guide groove is arranged on the slide plate, so that the gantry can slide back and forth on the slide plate of the chassis.

3. A foldable tire removal device according to claim 1, Features: A matching knob switch valve, oil tank and hand pump are connected to the gantry. The knob switch valve is arranged between the hydraulic actuator and the oil tank. When the tire is being demolded, the knob switch valve is closed, and the hand pump is dragged to supply oil, so that the inner cylinder of the hydraulic actuator extends and the pressure claw is pressed down at the same time. The pressure claw applies two local uniform loads to the pressure ring. The pressure ring converts the local uniform loads into a uniform load on the pressure ring and applies it to the tire. The tire is pressurized so that the tire is separated from the wheel hub. After the tire is demolded, the knob switch valve is opened, the hydraulic actuator is connected to the oil tank, and the pressure is released under the action of the tension spring, and the hydraulic actuator returns to its initial position.

4. A foldable tire removal device according to claim 1, Features: A traction rod is connected to the chassis, and casters are installed at the bottom of the chassis. The traction rod and the casters cooperate to realize short-distance traction transportation.

5. A foldable tire removal device according to claim 1, Features: The pre-compression device uses a hand pump as a power source when working, and uses the elastic force of a tension spring as a power source when restoring.

6. A foldable tire removal device according to claim 1, Features: When the tire stripping device is used or not in use, loosen the folding single lug and the connecting plate at the bottom of the lug, slide the gantry from the middle to the end, loosen the folding single lug and the fixing structure at the bottom of the gantry, and lay the gantry down.

Images