Box self-loading and unloading mechanism and operating machinery

Abstract

The present invention provides a box self-loading and unloading mechanism and operating machinery, the mechanism includes: one end of the hook arm is connected to the hook arm chassis, and the other end of the hook arm is connected to the box; the first wheel body is arranged at the bottom of the hook arm chassis; at least two second wheel bodies are arranged at intervals at the bottom of one side of the box, and the bottom of one side is the other side of the box connected to the hook arm; the driving assembly is arranged on the hook arm chassis and is respectively connected to the hook arm and the first wheel body; the pad assembly is arranged at the bottom of one side of the box with the second wheel body; the pad assembly includes: a first state and a second state; in the first state, the pad assembly shrinks and fits with the bottom of the box; in the second state, the pad assembly unfolds and abuts against the ground. The present invention arranges the second wheel body and the pad assembly at the bottom of the box, so that the box can be disassembled and installed on non-paved ground such as soft ground or sandy ground, and the pad assembly increases the contact area between the box and the ground.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and in particular to a box self-loading and unloading mechanism and an operating machine. Background Art

[0002] At present, self-loading and unloading fire trucks include a self-loading and unloading fire truck chassis, a hook system, and a module box. When unloading the box, the existing self-loading and unloading fire trucks generally stop the chassis, switch from the driving gear to the power take-off gear, start the hook system, and drive the module box to the ground by the hook. The bottom of the rear end of the module box is equipped with rollers, and the module box continues to roll backwards under the push of the hook until the module box completely lands on the ground. However, for non-paved surfaces such as soft ground or sandy and gravel ground, the rollers will be dented or stuck and cannot roll on the ground, resulting in the module box not being able to land normally. The same problem also occurs when loading boxes. Summary of the invention

[0003] The present invention provides a box self-loading and unloading mechanism, which is used to solve the defects in the prior art that the module box cannot be put down normally on non-paved surfaces such as soft ground or sandy and gravel ground, and will be dented or stuck when touching the ground, and cannot roll backward normally; it cannot roll normally when loading, and the module box cannot be loaded and unloaded normally. By arranging a second wheel body and a pad assembly at the bottom of the box, the box can be disassembled and installed on non-paved surfaces such as soft ground or sandy and gravel ground, the pad assembly increases the contact area between the box and the ground, and the drive assembly combines the two functions of driving and disassembly.

[0004] The present invention also provides a working machine to solve the defects in the prior art that the module box cannot be lowered normally on non-paved surfaces such as soft ground or sandy and gravel ground, and will be dented or stuck when touching the ground, and cannot roll backward normally; it cannot roll normally when being packed, and the module box cannot be loaded and unloaded normally. By arranging a second wheel body and a pad assembly at the bottom of the box body, the box body can be disassembled and installed on non-paved surfaces such as soft ground or sandy and gravel ground. The pad assembly increases the contact area between the box body and the ground, and the drive assembly combines the two functions of driving and disassembly.

[0005] According to a first aspect of the present invention, a box self-loading and unloading mechanism is provided, comprising: a hook arm, a hook arm chassis, a box, a first wheel body, a second wheel body, a driving assembly and a pad assembly;

[0006] One end of the hook arm is connected to the hook arm chassis, and the other end of the hook arm is connected to the box body;

[0007] The first wheel body is arranged at the bottom of the hook arm chassis;

[0008] At least two of the second wheels are spaced apart and arranged at the bottom of one side of the box body, and the bottom of one side is the other side of the box body connected to the hook arm;

[0009] The driving assembly is arranged on the hook arm chassis and is respectively connected to the hook arm and the first wheel body;

[0010] The pad assembly is arranged at the bottom of one side of the box body having the second wheel body;

[0011] Wherein, the pad assembly includes: a first state and a second state;

[0012] In the first state, the pad assembly shrinks and fits against the bottom of the box;

[0013] In the second state, the pad assembly is unfolded and abuts against the ground.

[0014] According to one embodiment of the present invention, the driving assembly comprises: a power unit, a first gear, a second gear, a first driving part and a second driving part;

[0015] The input end of the first driving part is connected to the output end of the power unit;

[0016] The first gear is connected to the output end of the power unit and is arranged between the power unit and the first driving part;

[0017] The second gear is meshed with the first gear and connected to the input end of the second driving part;

[0018] Wherein, the output end of the first driving part is connected to the first wheel body;

[0019] The output end of the second driving part is connected to the hook arm.

[0020] Specifically, this embodiment provides an implementation method of a drive component, which realizes transmitting the power of the power unit to the first drive unit by directly connecting the output end of the power unit with the input end of the first drive unit. By setting the power unit, the first gear and the second gear, it is realized that the power of the power unit is transmitted to the second drive unit through the first gear and the second gear, and then the power is transmitted to the first wheel body connected to the first drive unit, and the power is transmitted to the hook arm connected to the second drive unit.

[0021] According to an embodiment of the present invention, the first driving unit includes: a chassis clutch and a transmission;

[0022] The input end of the chassis clutch is connected to the output end of the power unit;

[0023] The output end of the chassis clutch is connected to the input end of the transmission;

[0024] The output end of the transmission is connected to the first wheel body.

[0025] Specifically, this embodiment provides an implementation method of the first drive unit. By setting up a chassis clutch and a transmission, the input end of the chassis clutch is connected to the output end of the power unit, and the power of the power unit is transmitted to the first wheel body, driving the first wheel body to rotate, and then driving the hook arm chassis to move.

[0026] According to an embodiment of the present invention, the second driving unit includes: a power take-off clutch and an oil pump;

[0027] The input end of the power take-off clutch is connected to the second gear;

[0028] The output end of the power take-off clutch is connected to the input end of the oil pump;

[0029] The output end of the oil pump is connected to the hook arm.

[0030] Specifically, this embodiment provides an implementation method of the second driving unit, which realizes the transmission of the power unit to the oil pump through the meshing transmission of the second gear and the first gear by setting a power take-off clutch and an oil pump, thereby driving the operation of the oil pump.

[0031] According to an embodiment of the present invention, it further comprises: a first drive branch in which the chassis clutch is engaged and the power take-off clutch is disengaged;

[0032] In the first driving branch, the first wheel body rotates and the hook arm chassis moves.

[0033] Specifically, this embodiment provides an implementation method of a first drive branch, by setting the state of the chassis clutch to engagement and the state of the power take-off clutch to disengagement in the first drive branch, so that the oil pump does not work in the first drive branch. In the first drive branch, the power unit drives the first wheel body to rotate, and the hook arm chassis moves under the action of the first wheel body.

[0034] According to an embodiment of the present invention, it further comprises: a second drive branch in which the chassis clutch is disengaged and the power take-off clutch is engaged;

[0035] In the second driving branch, the hook arm pushes the box to move, and the second wheel body rolls with the ground.

[0036] Specifically, this embodiment provides an implementation method for a second drive branch, by setting the state of the chassis clutch to disengagement and the state of the power take-off clutch to engagement in the second drive branch, so that the oil pump takes effect in the second drive branch, while the first wheel body stops, that is, the hook arm chassis does not move, and the second wheel body rolls with the ground to achieve movement of the box during self-loading and unloading.

[0037] According to an embodiment of the present invention, it further comprises: a third drive branch in which both the chassis clutch and the power take-off clutch are engaged;

[0038] In the third driving branch, the first wheel body rotates, the hook arm chassis moves, the hook arm pushes the box body to move, and the second wheel body rolls with the ground;

[0039] Wherein, the moving direction of the hook arm chassis is opposite to the moving direction of the box body.

[0040] Specifically, this embodiment provides an implementation method for a third drive branch, by setting the state of the chassis clutch and the state of the power take-off clutch to engagement in the third drive branch, in the third drive branch, the moving speed of the hook arm chassis and the flipping speed of the hook arm driving box are adapted to each other, so that the box can rotate around the second wheel body as a fulcrum in the third drive branch, and can also achieve displacement on the ground through the rolling of the second wheel body and the ground. The specific self-disassembly form of the box can be selected according to actual conditions.

[0041] It should be noted that in the third drive branch, the valve core opening is controlled by controlling the flow of the oil pump, and the amplitude and speed of the flipping of the hook arm are adjusted, so as to realize the switching of various forms such as the rotation of the box body with the second wheel body as the fulcrum during the movement of the hook arm chassis, or the movement is achieved by rolling the second wheel body and the ground.

[0042] According to an embodiment of the present invention, the pad assembly comprises: a plate body, a first rod body and a second rod body;

[0043] The plate body is arranged between the two second wheel bodies;

[0044] One end of the first rod is hinged to the plate, and the other end of the first rod is hinged to the box;

[0045] One end of the second rod is hinged to the plate, and the other end of the second rod is hinged to the box;

[0046] Wherein, the first rod body and the second rod body are arranged crosswise;

[0047] The first rod body is an electric, hydraulic or pneumatic telescopic rod.

[0048] Specifically, this embodiment provides an implementation of a pad assembly, and the contraction and expansion of the plate body at the bottom of the box body are realized by setting a first rod body and a second rod body. The cooperation between the first rod body and the second rod body can refer to a scissor lift.

[0049] Furthermore, by setting the first rod body as an electric, hydraulic or pneumatic telescopic rod, the rotation and expansion of the plate body in a small range at the bottom of the box body is realized. Through the expansion of the plate body, support on soft ground is achieved, avoiding the problem of the second wheel body being unable to rotate due to depression or jamming on soft ground. The setting of the plate body realizes self-loading and unloading of the box body on soft ground.

[0050] According to an embodiment of the present invention, the pad assembly further comprises: a fixing seat, the fixing seat being arranged at the bottom of the box body;

[0051] Wherein, the fixing seat is provided with a magnetic unit which is magnetically attracted to the plate body.

[0052] Specifically, this embodiment provides another implementation of the pad assembly, by providing a fixing seat and connecting the fixing seat and the plate body by magnetic attraction, so that the plate body can be positioned at the bottom of the box body under the action of the fixing seat.

[0053] According to a second aspect of the present invention, a working machine is provided, which has the above-mentioned box self-loading and unloading mechanism.

[0054] The above one or more technical solutions in the present invention have at least one of the following technical effects: a box self-loading and unloading mechanism and operating machinery provided by the present invention, by arranging a second wheel body and a pad assembly at the bottom of the box, enables the box to be disassembled and installed on non-paved surfaces such as soft ground or sandy ground, the pad assembly increases the contact area between the box and the ground, and the drive assembly combines the two functions of driving and disassembly.

[0055] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0057] Figure 1 This is one of the schematic diagrams of the assembly relationship of the box self-loading and unloading mechanism provided by the present invention;

[0058] Figure 2 This is the second schematic diagram of the assembly relationship of the box self-loading and unloading mechanism provided by the present invention;

[0059] Figure 3 It is a schematic diagram of the assembly relationship of the driving components in the box self-loading and unloading mechanism provided by the present invention;

[0060] Figure 4 It is a schematic diagram of the assembly relationship of the pad assembly in the box self-loading and unloading mechanism provided by the present invention.

[0061] Reference numerals:

[0062] 10. Hook arm; 20. Hook arm chassis; 30. Box body;

[0063] 40. First wheel body; 50. Second wheel body; 60. Power unit;

[0064] 70, first gear; 80, second gear; 90, chassis clutch;

[0065] 100, transmission; 110, power take-off clutch; 120, oil pump;

[0066] 130, plate body; 140, first rod body; 150, second rod body;

[0067] 160. Fixed seat. DETAILED DESCRIPTION

[0068] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0069] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0070] In some specific embodiments of the present invention, Figures 1 to 4 As shown, the present invention provides a box self-loading and unloading mechanism, comprising: a hook arm 10, a hook arm chassis 20, a box 30, a first wheel body 40, a second wheel body 50, a driving assembly and a pad assembly; one end of the hook arm 10 is connected to the hook arm chassis 20, and the other end of the hook arm 10 is connected to the box 30; the first wheel body 40 is arranged at the bottom of the hook arm chassis 20; at least two second wheel bodies 50 are arranged at intervals at the bottom of one side of the box 30, and the bottom of one side is the other side of the box 30 connected to the hook arm 10; the driving assembly is arranged on the hook arm chassis 20, and is respectively connected to the hook arm 10 and the first wheel body 40; the pad assembly is arranged at the bottom of one side of the box 30 having the second wheel body 50; wherein the pad assembly comprises: a first state and a second state; in the first state, the pad assembly is retracted and fits with the bottom of the box 30; in the second state, the pad assembly is unfolded and abuts against the ground.

[0071] In detail, the present invention provides a box self-loading and unloading mechanism to solve the defects in the prior art that the module box cannot be put down normally on non-paved surfaces such as soft ground or sandy ground, and will be dented or stuck when touching the ground, and cannot roll backward normally; it cannot roll normally when loading, and the module box cannot be loaded and unloaded normally. By arranging a second wheel body 50 and a pad assembly at the bottom of the box 30, the box 30 can be disassembled and installed on non-paved surfaces such as soft ground or sandy ground, the pad assembly increases the contact area between the box 30 and the ground, and the drive assembly combines the two functions of driving and disassembly.

[0072] In some possible embodiments of the present invention, the drive assembly includes: a power unit 60, a first gear 70, a second gear 80, a first drive unit and a second drive unit; the input end of the first drive unit is connected to the output end of the power unit 60; the first gear 70 is connected to the output end of the power unit 60 and is arranged between the power unit 60 and the first drive unit; the second gear 80 is meshed with the first gear 70 and is connected to the input end of the second drive unit; wherein the output end of the first drive unit is connected to the first wheel body 40; the output end of the second drive unit is connected to the hook arm 10.

[0073] Specifically, this embodiment provides an implementation method of a drive component, in which the power of the power unit 60 is transmitted to the first drive unit by directly connecting the output end of the power unit 60 with the input end of the first drive unit. By setting the power unit 60, the first gear 70 and the second gear 80, the power of the power unit 60 is transmitted to the second drive unit through the first gear 70 and the second gear 80, and then the power is transmitted to the first wheel body 40 connected to the first drive unit, and the power is transmitted to the hook arm 10 connected to the second drive unit.

[0074] In some possible embodiments of the present invention, the first drive unit includes: a chassis clutch 90 and a transmission 100; the input end of the chassis clutch 90 is connected to the output end of the power unit 60; the output end of the chassis clutch 90 is connected to the input end of the transmission 100; and the output end of the transmission 100 is connected to the first wheel body 40.

[0075] Specifically, this embodiment provides an implementation method of the first driving unit. By setting up a chassis clutch 90 and a transmission 100, the input end of the chassis clutch 90 is connected to the output end of the power unit 60, and the power of the power unit 60 is transmitted to the first wheel body 40, driving the first wheel body 40 to rotate, and then driving the hook arm chassis 20 to move.

[0076] In some possible embodiments of the present invention, the second driving unit includes: a power take-off clutch 110 and an oil pump 120; the input end of the power take-off clutch 110 is connected to the second gear 80; the output end of the power take-off clutch 110 is connected to the input end of the oil pump 120; and the output end of the oil pump 120 is connected to the hook arm 10.

[0077] Specifically, this embodiment provides an implementation method of the second driving unit. By setting up a power take-off clutch 110 and an oil pump 120, the power of the power unit 60 is transmitted to the oil pump 120 through the meshing transmission of the second gear 80 and the first gear 70, thereby driving the operation of the oil pump 120.

[0078] In some possible embodiments of the present invention, the present invention further includes: a first drive branch in which the chassis clutch 90 is engaged and the power take-off clutch 110 is disengaged; in the first drive branch, the first wheel body 40 rotates and the hook arm chassis 20 moves.

[0079] Specifically, this embodiment provides an implementation method of a first drive branch, by setting the state of the chassis clutch 90 to engagement and the state of the power take-off clutch 110 to disengagement in the first drive branch, so that the oil pump 120 does not function in the first drive branch. In the first drive branch, the power unit 60 drives the first wheel body 40 to rotate, and the hook arm chassis 20 moves under the action of the first wheel body 40.

[0080] In some possible embodiments of the present invention, the present invention further includes: a second drive branch in which the chassis clutch 90 is disengaged and the power take-off clutch 110 is engaged; in the second drive branch, the hook arm 10 pushes the box body 30 to move, and the second wheel body 50 rolls with the ground.

[0081] Specifically, this embodiment provides an implementation method for a second drive branch, by setting the state of the chassis clutch 90 to disengagement and the state of the power take-off clutch 110 to engagement in the second drive branch, so that the oil pump 120 plays a role in the second drive branch, while the first wheel body 40 stops moving, that is, the hook arm chassis 20 does not move, and the second wheel body 50 rolls with the ground to realize the movement of the box body 30 during the self-loading and unloading process.

[0082] In some possible embodiments of the present invention, it also includes: a third drive branch in which the chassis clutch 90 and the power take-off clutch 110 are both engaged; in the third drive branch, the first wheel body 40 rotates, the hook arm chassis 20 moves, the hook arm 10 pushes the box body 30 to move, and the second wheel body 50 rolls with the ground; wherein the moving direction of the hook arm chassis 20 is opposite to the moving direction of the box body 30.

[0083] Specifically, this embodiment provides an implementation method for a third drive branch, by setting the state of the chassis clutch 90 and the state of the power take-off clutch 110 to be engaged in the third drive branch, in the third drive branch, the moving speed of the hook arm chassis 20 and the flipping speed of the hook arm 10 driving the box 30 are adapted to each other, so that the box 30 can rotate around the second wheel body 50 as a fulcrum in the third drive branch, and can also achieve displacement on the ground through the rolling of the second wheel body 50 and the ground. The specific self-disassembly form of the box 30 can be selected according to actual conditions.

[0084] It should be noted that, in the third drive branch, the valve core opening is controlled by controlling the flow of the oil pump 120, and the amplitude and speed of the flipping of the hook arm 10 are adjusted, so as to realize the switching of various forms such as the box body 30 rotating with the second wheel body 50 as the fulcrum during the movement of the hook arm chassis 20, or the movement is achieved by the rolling of the second wheel body 50 and the ground.

[0085] In some possible embodiments of the present invention, the pad assembly includes: a plate body 130, a first rod body 140 and a second rod body 150; the plate body 130 is arranged between the two second wheel bodies 50; one end of the first rod body 140 is hinged to the plate body 130, and the other end of the first rod body 140 is hinged to the box body 30; one end of the second rod body 150 is hinged to the plate body 130, and the other end of the second rod body 150 is hinged to the box body 30; wherein the first rod body 140 and the second rod body 150 are cross-arranged; the first rod body 140 is an electric, hydraulic or pneumatic telescopic rod.

[0086] Specifically, this embodiment provides an implementation of a pad assembly, and the contraction and expansion of the plate body 130 at the bottom of the box body 30 are achieved by setting the first rod body 140 and the second rod body 150. The cooperation between the first rod body 140 and the second rod body 150 can refer to a scissor lift.

[0087] Furthermore, by setting the first rod body 140 as an electric, hydraulic or pneumatic telescopic rod, the plate body 130 can be rotated and unfolded within a small range at the bottom of the box body 30. By unfolding the plate body 130, support on soft ground is achieved, avoiding the problem of the second wheel body 50 being unable to rotate due to depression or jamming on soft ground. The setting of the plate body 130 realizes self-loading and unloading of the box body 30 on soft ground.

[0088] In some possible embodiments of the present invention, the pad assembly further includes: a fixing base 160 , which is disposed at the bottom of the box body 30 ; wherein the fixing base 160 is provided with a magnetic unit that is magnetically attracted to the plate body 130 .

[0089] Specifically, this embodiment provides another implementation of the pad assembly, by providing a fixing seat 160 and connecting the fixing seat 160 and the plate body 130 by magnetic attraction, so that the plate body 130 can be positioned at the bottom of the box body 30 under the action of the fixing seat 160.

[0090] The present invention also provides a working machine having the above-mentioned box self-loading and unloading mechanism.

[0091] It should be noted that the operating machine in this embodiment may be a fire truck, or a box truck or other operating vehicles having a related box body 30 that needs to be disassembled.

[0092] In detail, the present invention also provides a working machine to solve the defects in the prior art that the module box cannot be lowered normally on non-paved surfaces such as soft ground or sandy ground, and will be dented or stuck when touching the ground, and cannot roll backward normally; it cannot roll normally when being packed, and the module box cannot be loaded and unloaded normally. By arranging a second wheel body 50 and a pad assembly at the bottom of the box body 30, the box body 30 can be disassembled and installed on non-paved surfaces such as soft ground or sandy ground, the pad assembly increases the contact area between the box body 30 and the ground, and the drive assembly combines the two functions of driving and disassembly.

[0093] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0094] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A box self-loading and unloading mechanism, characterized in that: include: Hook arm, hook arm chassis, box body, first wheel body, second wheel body, drive assembly and pad assembly; One end of the hook arm is connected to the hook arm chassis, and the other end of the hook arm is connected to the box body; The first wheel body is arranged at the bottom of the hook arm chassis; At least two of the second wheels are spaced apart and arranged at the bottom of one side of the box body, and the bottom of one side is the other side of the box body connected to the hook arm; The driving assembly is arranged on the hook arm chassis and is respectively connected to the hook arm and the first wheel body; The pad assembly is arranged at the bottom of one side of the box body having the second wheel body; Wherein, the pad assembly includes: a first state and a second state; In the first state, the pad assembly shrinks and fits against the bottom of the box; In the second state, the pad assembly is unfolded and abuts against the ground; The pad assembly comprises: a plate body, a first rod body and a second rod body; The plate body is arranged between the two second wheel bodies; One end of the first rod is hinged to the plate, and the other end of the first rod is hinged to the box; One end of the second rod is hinged to the plate, and the other end of the second rod is hinged to the box; Wherein, the first rod body and the second rod body are arranged crosswise; The first rod body is an electric, hydraulic or pneumatic telescopic rod.

2. A box self-loading and unloading mechanism according to claim 1, characterized in that: The driving assembly comprises: a power unit, a first gear, a second gear, a first driving part and a second driving part; The input end of the first driving part is connected to the output end of the power unit; The first gear is connected to the output end of the power unit and is arranged between the power unit and the first driving part; The second gear is meshed with the first gear and connected to the input end of the second driving part; Wherein, the output end of the first driving part is connected to the first wheel body; The output end of the second driving part is connected to the hook arm.

3. A box self-loading and unloading mechanism according to claim 2, characterized in that: The first driving unit includes: a chassis clutch and a transmission; The input end of the chassis clutch is connected to the output end of the power unit; The output end of the chassis clutch is connected to the input end of the transmission; The output end of the transmission is connected to the first wheel body.

4. A box self-loading and unloading mechanism according to claim 3, characterized in that: The second driving unit includes: a power take-off clutch and an oil pump; The input end of the power take-off clutch is connected to the second gear; The output end of the power take-off clutch is connected to the input end of the oil pump; The output end of the oil pump is connected to the hook arm.

5. A box self-loading and unloading mechanism according to claim 4, characterized in that: Also includes: a first drive branch in which the chassis clutch is engaged and the power take-off clutch is disengaged; In the first driving branch, the first wheel body rotates and the hook arm chassis moves.

6. A box self-loading and unloading mechanism according to claim 4, characterized in that: Also includes: a second drive branch where the chassis clutch is disengaged and the power take-off clutch is engaged; In the second driving branch, the hook arm pushes the box to move, and the second wheel body rolls with the ground.

7. A box self-loading and unloading mechanism according to claim 4, characterized in that: Also includes: a third drive branch in which both the chassis clutch and the power take-off clutch are engaged; In the third driving branch, the first wheel body rotates, the hook arm chassis moves, the hook arm pushes the box body to move, and the second wheel body rolls with the ground; Wherein, the moving direction of the hook arm chassis is opposite to the moving direction of the box body.

8. The box self-loading and unloading mechanism according to claim 1, characterized in that: The pad assembly further includes: a fixing seat, the fixing seat being arranged at the bottom of the box body; Wherein, the fixing seat is provided with a magnetic unit which is magnetically attracted to the plate body.

9. A working machine, characterized in that: A box self-loading and unloading mechanism according to any one of claims 1 to 8.

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