Auxiliary device for dismounting and mounting tire nut of surface mine engineering vehicle

Abstract

The utility model discloses an auxiliary device for dismounting and mounting a tire nut of a surface mine engineering vehicle, which comprises a moving frame, a lifting seat, a wrench mounting frame and a horizontal swing arm with a plurality of swing joints, and moving wheels and a brake mechanism are arranged at the bottom of the moving frame. The lifting seat is arranged on the movable frame in a lifting mode, an elastic assembly is arranged between the lifting seat and the movable frame, one end of the horizontal swing arm is arranged on the lifting seat, and the wrench installation frame is arranged at the other end of the horizontal swing arm. The auxiliary device for dismounting and mounting the tire nut of the surface mine engineering vehicle is easy to align and operate, high in efficiency and good in stability.

Description

An auxiliary device for removing and installing tire nuts on open-pit mining engineering vehicles Technical Field

[0001] This utility model relates to the field of engineering machinery maintenance equipment technology, specifically to an auxiliary device for disassembling and assembling tire nuts on open-pit mining engineering vehicles. Background Technology

[0002] In the open-pit mining industry, mining vehicles account for 90% of the total equipment, such as unmanned mining trucks, graders, and water trucks. Maintenance of wheel-side oil leaks, oil seal replacements, brake pad replacements, tire wear and tear replacements, tire inflation, and other related component repairs all require the removal of tire bolts before proceeding to the next step. The number of open-pit mining vehicles requiring daily maintenance is high. The frequency of tire wear and tear and other component repairs and replacements on open-pit mining vehicles is extremely high, with nearly 20 bolts needing to be removed for a single tire. Currently, the bolts are typically removed manually using handheld pneumatic / electric wrenches. These handheld pneumatic / electric wrenches weigh approximately 50 catties, are heavy, and generate significant vibration and impact, making them prone to slipping and breaking, potentially damaging the wrench and the removed tire bolts and nuts, and also affecting maintenance efficiency.

[0003] Chinese patent document CN202222313005.2 discloses an assistive mechanism for loading and unloading tire bolts on a loader. Specifically, it discloses a support device, a rocker arm, and a wrench holder. The support device includes casters, the rocker arm is hinged to the support device, and one end of the rocker arm is fixed to the support device via a telescopic member. The other end of the rocker arm is hinged to the wrench holder. Using this invention, a heavy-duty pneumatic wrench is clamped onto the wrench holder, allowing the operator to load and unload tire bolts by holding the heavy-duty pneumatic wrench. The weight of the heavy-duty pneumatic wrench is borne by the assistive mechanism, reducing the operator's labor intensity. Furthermore, the rotation of the casters and the up-and-down swing of the rocker arm allow the operator to easily change their operating position, further reducing physical exertion. In addition, the assistive mechanism can absorb or dissipate the reaction force generated by the tire bolts during loading and unloading, improving safety. However, this assistive mechanism for loading and unloading tire bolts on a loader has the following shortcomings:

[0004] 1) The alignment of the handheld heavy-duty pneumatic wrench with the nut is achieved by swinging the rocker arm up and down and moving the support device, which makes the alignment operation difficult;

[0005] 2) The support device moves via casters and lacks a braking mechanism, resulting in poor stability when installing or removing nuts;

[0006] 3) When using it, the heavy-duty pneumatic wrench is directly mounted on the rocker arm, resulting in poor shock absorption. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an auxiliary device for assembling and disassembling tire nuts of open-pit mining engineering vehicles that is easy to align, efficient, and stable.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] An auxiliary device for removing and installing tire nuts on an open-pit mining engineering vehicle includes a mobile frame, a lifting seat, a wrench mounting bracket, and a horizontal swing arm with multiple swing joints. The bottom of the mobile frame is provided with a moving wheel and a braking mechanism. The lifting seat is raised and lowered on the mobile frame and is provided with an elastic component between it and the mobile frame. One end of the horizontal swing arm is located on the lifting seat, and the wrench mounting bracket is located at the other end of the horizontal swing arm.

[0010] As a further improvement to the above technical solution:

[0011] The elastic component includes a lifting spring and a transmission component. One end of the lifting spring is connected to the movable frame, and the other end is connected to the lifting seat through the transmission component.

[0012] The transmission component is a transmission chain, and the movable frame is equipped with a sprocket, with the transmission chain wound around the sprocket.

[0013] The bottom of the mobile frame is provided with a connecting part, the lifting spring is connected to the connecting part, and the sprocket is located at the top of the mobile frame.

[0014] The braking mechanism includes a brake wheel and a brake handle. The brake wheel is rotatably mounted at the bottom of the movable frame and located in front of the movable wheel to abut against the brake wheel. The rotation axis of the brake wheel is eccentrically mounted. The movable frame is provided with an arc-shaped guide groove. The lower part of the brake handle is mounted on the brake wheel or the rotation axis, and the upper part slides in the arc-shaped guide groove. The center of the arc of the arc-shaped guide groove coincides with the rotation axis.

[0015] The movable frame has omnidirectional casters on the front side of its bottom and fixed rubber casters on the rear side, with the brake wheel located in front of the fixed rubber casters.

[0016] The horizontal swing arm is provided with an elastic seat, and the wrench is mounted on the elastic seat.

[0017] The elastic seat includes a pin and a shock-absorbing spring. The pin is inserted into the horizontal swing arm and the wrench mounting bracket is fixed to the top of the pin. The shock-absorbing spring is sleeved on the pin and pressed against the wrench mounting bracket and the horizontal swing arm.

[0018] The horizontal swing arm is a swing chain.

[0019] The lifting seat is equipped with lifting wheels, the movable frame is equipped with vertical guide rails, and the lifting wheels are located on the vertical guide rails.

[0020] Compared with the prior art, the advantages of this utility model are:

[0021] This utility model discloses an auxiliary device for disassembling and assembling tire nuts on open-pit mining vehicles. The usage process is as follows: First, install an electric wrench on the wrench mounting frame and push the auxiliary device to a suitable position on the outside of the tire. The moving wheel is then braked by the braking mechanism. Second, a person manually holds the electric wrench and, through the horizontal swing of the horizontal arm and the lifting action of the lifting seat overcoming the elastic force of the elastic component, aligns the electric wrench with the nut to be disassembled or assembled. Finally, the nut is disassembled or assembled using the electric wrench. Firstly, the horizontal swing of the horizontal arm with multiple swing joints and the lifting action of the lifting seat overcoming the elastic force of the elastic component make it easier for the electric wrench to align with the nut, resulting in easy and efficient alignment. Secondly, the presence of a braking mechanism ensures good stability when disassembling or assembling the nut by braking the moving wheel. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the main structure of the auxiliary device for disassembling and assembling tire nuts of open-pit mining engineering vehicles according to this utility model.

[0023] Figure 2 is an enlarged structural diagram of point A in Figure 1.

[0024] Figure 3 is a schematic diagram of the internal structure of the movable frame of the auxiliary device for disassembling and assembling tire nuts of open-pit mining engineering vehicles according to this utility model.

[0025] Figure 4 is an enlarged structural diagram of point B in Figure 3.

[0026] Figure 5 is an enlarged structural diagram of point C in Figure 3.

[0027] Figure 6 is a top view of the auxiliary device for disassembling and assembling tire nuts of open-pit mining engineering vehicles according to this utility model.

[0028] The labels in the diagram represent:

[0029] 1. Moving frame; 11. Connecting part; 12. Vertical guide rail; 13. Arc-shaped guide groove; 2. Lifting seat; 21. Lifting wheel; 3. Wrench mounting bracket; 4. Horizontal swing arm; 41. Elastic seat; 411. Pin; 412. Shock-absorbing spring; 5. Moving wheel; 6. Braking mechanism; 61. Brake wheel; 62. Brake push handle; 63. Rotating shaft; 7. Elastic component; 71. Lifting spring; 72. Transmission component; 8. Sprocket; 9. Electric wrench. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Figures 1 to 6 illustrate an embodiment of the auxiliary device for disassembling and assembling tire nuts of open-pit mining engineering vehicles according to the present invention. The auxiliary device for disassembling and assembling tire nuts of open-pit mining engineering vehicles in this embodiment includes a movable frame 1, a lifting seat 2, a wrench mounting frame 3, and a horizontal swing arm 4 with multiple swing joints. The bottom of the movable frame 1 is provided with movable wheels 5 and a braking mechanism 6. The lifting seat 2 is ellipsably mounted on the movable frame 1 and an elastic component 7 is provided between the lifting seat 2 and the movable frame 1. One end of the horizontal swing arm 4 is located on the lifting seat 2, and the wrench mounting frame 3 is located at the other end of the horizontal swing arm 4.

[0035] Usage: First, install the electric wrench 9 on the wrench mounting bracket 3, and push the auxiliary device for removing and installing lug nuts on the open-pit mining vehicle to a suitable position on the outside of the tire. Brake the moving wheel 5 using the brake mechanism 6. Second, manually hold the electric wrench 9, and use the horizontal swing of the horizontal arm 4 and the lifting action of the lifting seat 2 to overcome the elastic force of the elastic component 7 to align the electric wrench 9 with the lug nut to be removed or installed. Finally, remove or install the lug nut using the electric wrench 9. First, the horizontal swing of the horizontal arm 4 with multiple swing joints and the lifting action of the lifting seat 2 to overcome the elastic force of the elastic component 7 make it easier for the electric wrench 9 to align with the lug nut, resulting in easy and efficient alignment. Second, the brake mechanism 6 is provided; when removing or installing the lug nut, the moving wheel 5 is braked by the brake mechanism 6, ensuring good stability.

[0036] Further, as shown in Figure 3, in this embodiment, the elastic component 7 includes a lifting spring 71 and a transmission component 72. One end of the lifting spring 71 is connected to the movable frame 1, and the other end is connected to the lifting seat 2 via the transmission component 72. The connection between the lifting spring 71 and the lifting seat 2 via the transmission component 72 facilitates the selection and fixed installation of the lifting spring 71 at an appropriate position.

[0037] Furthermore, in this embodiment, the transmission component 72 is a transmission chain, and the movable frame 1 is provided with a sprocket 8, with the transmission chain wound around the sprocket 8.

[0038] Furthermore, in this embodiment, the bottom of the movable frame 1 is provided with a connecting part 11, the lifting spring 71 is connected to the connecting part 11, and the sprocket 8 is located on the top of the movable frame 1. This facilitates manual adjustment of the height of the electric wrench 9 by applying downward pressure, and combined with the swing of the horizontal swing arm 4, meets the requirements for disassembling and assembling nuts in different positions.

[0039] Further, as shown in Figures 1 and 2, in this embodiment, the braking mechanism 6 includes a brake wheel 61 and a brake handle 62. The brake wheel 61 is rotatably mounted at the bottom of the movable frame 1 and located in front of the movable wheel 5, used to press against the brake wheel 61. The rotation axis 63 of the brake wheel 61 is eccentrically mounted. The movable frame 1 is provided with an arc-shaped guide groove 13. The lower part of the brake handle 62 is mounted on the brake wheel 61 or the rotation axis 63, and the upper part slides in the arc-shaped guide groove 13. The center of the arc of the arc-shaped guide groove 13 coincides with the rotation axis 63. Specifically, the brake wheel 61 is fixed to the rotation axis 63, and the rotation axis 63 is rotatably mounted on the movable frame 1. When braking, pushing the brake handle 62 causes the brake wheel 61 to rotate around the rotation axis 63, so that the brake wheel 61 presses against the movable wheel 5, thereby braking the movable wheel 5. Further, a locking mechanism can be provided on the brake handle 62 to lock the position of the brake handle 62 in the movable frame 1, thereby keeping the brake wheel 61 pressed against the movable wheel 5. Of course, in other embodiments, the braking mechanism 6 may also adopt other conventional structures that can achieve the braking function.

[0040] Furthermore, in this embodiment, the front movable wheel 5 at the bottom of the movable frame 1 is a swivel wheel, the rear movable wheel 5 is a fixed rubber wheel, and the brake wheel 61 is located in front of the fixed rubber wheel.

[0041] Furthermore, as shown in Figures 3 and 4, in this embodiment, the horizontal swing arm 4 is provided with an elastic seat 41, and the wrench mounting bracket 3 is provided on the elastic seat 41. Due to the buffering effect of the elastic seat 41, the shock absorption effect is improved.

[0042] Further, as shown in Figure 4, in this embodiment, the elastic seat 41 includes a pin 411 and a shock-absorbing spring 412. The pin 411 is vertically inserted into the horizontal swing arm 4, the wrench mounting bracket 3 is fixed to the top of the pin 411, and the shock-absorbing spring 412 is sleeved on the pin 411 and abuts against the wrench mounting bracket 3 and the horizontal swing arm 4. The structure is simple and easy to manufacture. Preferably, a limiting nut is provided at the bottom end of the pin 411 to prevent the pin 411 from coming out from the top.

[0043] Furthermore, in this embodiment, the horizontal swing arm 4 is a swing chain with multiple vertically arranged swing joints, which improves the degree of freedom in the horizontal direction and facilitates the adjustment of the position of the electric wrench 9.

[0044] Furthermore, in this embodiment, the lifting seat 2 is provided with lifting wheels 21, and the moving frame 1 is provided with vertical guide rails 12. The lifting wheels 21 are located on the vertical guide rails 12, which improves the stability of the lifting movement and reduces friction.

[0045] It should be noted that this auxiliary device is mainly used for removing and installing tire nuts on open-pit mining vehicles, including dump trucks, graders, loaders, water trucks, fuel trucks, commuter vehicles, wheeled excavators, and rescue vehicles (box trucks), etc. However, the mention of "open-pit mining vehicles" in the name does not limit the scope of use of the auxiliary device.

[0046] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. An auxiliary device for disassembling and assembling tire nuts on open-pit mining engineering vehicles, characterized in that: It includes a movable frame (1), a lifting seat (2), a wrench mounting bracket (3), and a horizontal swing arm (4) with multiple swing joints. The bottom of the movable frame (1) is provided with a movable wheel (5) and a brake mechanism (6). The lifting seat (2) is lifted and lowered on the movable frame (1) and an elastic component (7) is provided between it and the movable frame (1). One end of the horizontal swing arm (4) is located on the lifting seat (2), and the wrench mounting bracket (3) is located at the other end of the horizontal swing arm (4).

2. The auxiliary device for disassembling and assembling tire nuts for open-pit mining engineering vehicles according to claim 1, characterized in that: The elastic component (7) includes a lifting spring (71) and a transmission component (72). One end of the lifting spring (71) is connected to the movable frame (1), and the other end is connected to the lifting seat (2) through the transmission component (72).

3. The auxiliary device for disassembling and assembling tire nuts for open-pit mining engineering vehicles according to claim 2, characterized in that: The transmission component (72) is a transmission chain, and the moving frame (1) is provided with a sprocket (8), and the transmission chain is wound around the sprocket (8).

4. The auxiliary device for disassembling and assembling tire nuts for open-pit mining engineering vehicles according to claim 3, characterized in that: The bottom of the mobile frame (1) is provided with a connecting part (11), the lifting spring (71) is connected to the connecting part (11), and the sprocket (8) is located on the top of the mobile frame (1).

5. The auxiliary device for disassembling and assembling tire nuts for open-pit mining engineering vehicles according to claim 1, characterized in that: The braking mechanism (6) includes a brake wheel (61) and a brake push handle (62). The brake wheel (61) is rotatably disposed at the bottom of the movable frame (1) and in front of the movable wheel (5) for pressing against the brake wheel (61). The rotation axis (63) of the brake wheel (61) is eccentrically disposed. The movable frame (1) is provided with an arc-shaped guide groove (13). The lower part of the brake push handle (62) is disposed on the brake wheel (61) or the rotation axis (63), and the upper part is slidably disposed in the arc-shaped guide groove (13). The arc center of the arc-shaped guide groove (13) coincides with the rotation axis (63).

6. The auxiliary device for disassembling and assembling tire nuts for open-pit mining engineering vehicles according to claim 5, characterized in that: The movable wheel (5) on the front side of the bottom of the movable frame (1) is a universal wheel, and the movable wheel (5) on the rear side is a fixed rubber wheel. The brake wheel (61) is located in front of the fixed rubber wheel.

7. The auxiliary device for disassembling and assembling tire nuts on open-pit mining engineering vehicles according to claim 1, characterized in that: The horizontal swing arm (4) is provided with an elastic seat (41), and the wrench mounting bracket (3) is provided on the elastic seat (41).

8. The auxiliary device for disassembling and assembling tire nuts for open-pit mining engineering vehicles according to claim 7, characterized in that: The elastic seat (41) includes a pin (411) and a shock-absorbing spring (412). The pin (411) is inserted into the horizontal swing arm (4) in a lifting manner. The wrench mounting bracket (3) is fixed to the top of the pin (411). The shock-absorbing spring (412) is sleeved on the pin (411) and abuts against the wrench mounting bracket (3) and the horizontal swing arm (4).

9. The auxiliary device for removing and installing tire nuts on open-pit mining engineering vehicles according to any one of claims 1 to 8, characterized in that: The horizontal swing arm (4) is a swing chain.

10. The auxiliary device for removing and installing tire nuts on open-pit mining vehicles according to any one of claims 1 to 8, characterized in that: The lifting seat (2) is provided with lifting wheels (21), and the moving frame (1) is provided with a vertical guide rail (12). The lifting wheels (21) are located on the vertical guide rail (12).

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