Automatic reloading device of trackless rubber-tyred vehicle for coal mine

Abstract

The utility model discloses an automatic reloading device for a trackless rubber-tyred vehicle for a coal mine, which belongs to the technical field of underground reloading material vehicles and comprises a trackless rubber-tyred material vehicle, a swing arm driving type feeding and discharging mechanism is fixedly mounted at the tail end of the trackless rubber-tyred material vehicle, and a material conveying cavity is formed in the head end of the trackless rubber-tyred material vehicle. An air pressure type material box restraining assembly is installed at the bottom of an inner cavity of the material conveying cavity. According to the swing arm driving type feeding and discharging mechanism, the material box can be conveyed into the material conveying cavity in a suspended mode, automatic loading and unloading of materials can be achieved, and when the material box makes contact with the bottom of the material conveying cavity, the material box slowly presses down a corrugated triggering air pipe of the air pressure type material box restraining assembly under the action of gravity; and meanwhile, a corrugated clamping air pipe of the air pressure type material box restraining assembly is gradually inflated and fed, and finally, the side face of the material box can be clamped and fixed through a side clamping base of the air pressure type material box restraining assembly, so that the material box is more stable when the trackless rubber wheel material vehicle is used for transporting.

Description

Technical Field

[0001] The utility model relates to the technical field of underground material replacement vehicles, in particular to an automatic replacement device for trackless rubber-wheeled vehicles used in coal mines. Background Art

[0002] In underground coal mine transportation operations, an efficient and safe material transfer system is essential. At present, the transportation mode adopted by mines mainly involves two transfer processes: one is to transfer materials from the main transportation system to the rubber-wheeled trackless vehicle, and the other is to transfer materials from the trackless vehicle to the ground at the destination.

[0003] Based on the above-mentioned loading and unloading process, although the current material transport vehicles have popularized automated loading and unloading of materials, the material boxes cannot be limited or fixed after being loaded. As a result, the material boxes are prone to ups and downs, tilting, or even overturning after being bumped during transportation, resulting in poor stability of the material boxes on the vehicle. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an automatic loading and unloading device for trackless rubber-wheeled vehicles for coal mines, which can suspend and transport the material box to the material transport cavity through the swing arm driven loading and unloading mechanism, and realize the automatic loading and unloading of materials. When the material box contacts the bottom of the material transport cavity, the material box slowly presses down the corrugated triggering air pipe of the pneumatic material box constraint component under the action of gravity. At the same time, the corrugated clamping air pipe of the pneumatic material box constraint component is gradually inflated and fed, and finally the side of the material box can be clamped and fixed by the side clamp seat of the pneumatic material box constraint component, so the material box of the trackless rubber-wheeled material vehicle will be more stable during transportation.

[0005] In order to solve the above technical problems, the technical solution of the utility model is implemented as follows:

[0006] An automatic loading and unloading device for a trackless rubber-wheeled vehicle for a coal mine comprises a trackless rubber-wheeled material vehicle, a swing arm driven loading and unloading mechanism is fixedly installed at the rear end of the trackless rubber-wheeled material vehicle, and a material transport cavity is opened at the front end of the trackless rubber-wheeled material vehicle;

[0007] A pneumatic material box restraint assembly is installed at the bottom of the inner cavity of the material transport cavity. The trackless rubber-wheeled material vehicle can suspend and transport the material box to the material transport cavity through a swing arm driven loading and unloading mechanism. From the moment the material box contacts the bottom of the material transport cavity, the material box is gradually clamped and fixed by the pneumatic material box restraint assembly.

[0008] The pneumatic material box restraint assembly includes an air storage box, and the top of the air storage box is fixedly connected to a downward pressure bottom plate through a corrugated trigger air pipe. The corrugated trigger air pipe and the downward pressure bottom plate are both located at the bottom of the inner cavity of the material transport chamber. The left and right sides of the air storage box are respectively connected with air supply pipes, which penetrate the left and right sides of the inner cavity of the material transport chamber. The air supply pipes are fixedly connected to side clamp seats through corrugated clamping air pipes.

[0009] By adopting the above scheme, the automatic loading and unloading device can suspend and transport the material box to the material transport cavity through the swing arm driven loading and unloading mechanism, so as to realize the automatic loading and unloading of materials. From the moment the material box contacts the bottom of the material transport cavity, the material box slowly presses down the corrugated triggering air pipe of the pneumatic material box restraint assembly under the action of gravity. At the same time, the corrugated clamping air pipe of the pneumatic material box restraint assembly is gradually inflated and fed, and finally the side of the material box can be clamped and fixed by the side clamp seat of the pneumatic material box restraint assembly. Then, the material box will be more stable when the trackless rubber-wheeled material vehicle is transported.

[0010] As a preferred implementation of the automatic changing device for a trackless rubber-tyred vehicle for a coal mine, a plurality of vertically arranged anti-skid grooves are provided on the contact surface of the side clamp seat.

[0011] In order to further improve the stability after clamping by adopting the above solution, an anti-slip groove is provided to increase the friction force when the two are in contact, thereby improving the stability after clamping.

[0012] As a preferred embodiment of the automatic loading device for a trackless rubber-wheeled vehicle for a coal mine, the four corners of the pressing bottom plate are respectively slidably connected to the guide shafts vertically fixed at the bottom of the inner cavity of the material transport chamber, and the guide shafts are sleeved with springs that push the pressing bottom plate to move upward;

[0013] When no material box is placed above the pressing bottom plate, the pressing bottom plate then moves upward under the push of the spring, and at this time, all the air in the corrugated clamping air pipe enters into the corrugated triggering air pipe.

[0014] By adopting the above scheme, in order to reset the downward pressing bottom, when the material box is lifted from the material transport cavity and unloaded, once the material box leaves the downward pressing bottom plate, it will be pushed upward under the elastic action of the spring. At this time, all the air in the corrugated clamping air pipe enters the corrugated triggering air pipe, thereby achieving reset.

[0015] As a preferred implementation of the automatic changing device for a trackless rubber-tyred vehicle for a coal mine, the gas in the gas storage box is a normal pressure gas, which is an inert gas, such as nitrogen.

[0016] In the above scheme, in order to improve the stability during gas transmission, inert gas is used for gas transmission. Inert gas is less affected by external conditions such as temperature and can improve the stability during gas transmission.

[0017] As a preferred implementation of the automatic changing device for a trackless rubber-tyred vehicle for a coal mine, the corrugated trigger air pipe and the corrugated clamping air pipe are both metal bellows, such as stainless steel bellows.

[0018] In order to prevent the bellows from triggering the air tube and the bellows from clamping the air tube to cause deformation other than the telescopic state, a metal bellows with high hardness is used to avoid other deformations during clamping.

[0019] As a preferred embodiment of the automatic loading and unloading device of a trackless rubber-wheeled vehicle for a coal mine, the swing arm driven loading and unloading mechanism comprises a positioning base fixed on the trackless rubber-wheeled material vehicle, and vertically arranged fan-shaped frame doors are fixed on the left and right sides of the positioning base, and a fan-shaped slide groove is provided on the fan-shaped frame door, and a side swing arm is slidably installed in the fan-shaped slide groove through a slide rail, and the bottom of the side swing arm is concentrically movably installed at the center of the fan-shaped frame door, and a suspension arm is commonly connected between the tops of the two side swing arms, and a lifting assembly is also installed at the center of the suspension arm;

[0020] A flip drive motor is fixed on the side swing arm, a driving gear is coaxially connected to the rotating shaft of the flip drive motor, and a fan-shaped toothed disc meshing with the driving gear is fixed on the door top of the fan-shaped frame door;

[0021] The lifting assembly includes a lifting suspension, the center of the lifting suspension is a rotatable central axis, the side wall of the lifting suspension is installed with a suspension drive motor for driving the central axis to rotate, a steel wire is wound around the central axis, and a hook is fixedly connected to the end of the steel wire, and the material box can be lifted by the hook;

[0022] The tilting drive motor and the suspension drive motor are both driven by the control unit in the trackless rubber-wheeled material vehicle.

[0023] By adopting the above scheme, in order to realize the lifting and flipping transportation of the material box, during operation, the control unit in the trackless rubber-wheeled material vehicle controls the flipping drive motor to start, and then drives the driving gear to rotate. Under the meshing transmission of the teeth, the side swing arm flips along the fan-shaped toothed disc until it reaches the top of the material box. Then, the control unit in the trackless rubber-wheeled material vehicle controls the suspension drive motor to start, at which time the hook is lowered, and then the material box is lifted by the hook.

[0024] After adopting the above technical solution, the beneficial effects of the utility model are:

[0025] 1. The automatic loading and unloading device can suspend and transport the material box to the material transport cavity through the swing arm driven loading and unloading mechanism, and can realize the automatic loading and unloading of materials. When the material box contacts the bottom of the material transport cavity, the material box slowly presses down the corrugated triggering air pipe of the pneumatic material box restraint component under the action of gravity. At the same time, the corrugated clamping air pipe of the pneumatic material box restraint component is gradually inflated and fed. Finally, the side of the material box can be clamped and fixed by the side clamp seat of the pneumatic material box restraint component, so the material box will be more stable during transportation by the trackless rubber-wheeled material vehicle.

[0026] 2. In order to reset the bottom of the pressure, when the material box is lifted and unloaded from the material transport cavity, once the material box leaves the bottom plate, it will be pushed upward under the elastic action of the spring. At this time, all the air in the corrugated clamping air pipe enters the corrugated triggering air pipe to achieve reset.

[0027] 3. In order to improve the stability of gas transmission, inert gas is used for gas transmission. Inert gas is less affected by external conditions such as temperature and can improve the stability of gas transmission.

[0028] 4. In order to realize the lifting and flipping of the material box, during operation, the control unit in the trackless rubber-wheeled material vehicle controls the flipping drive motor to start, and then drives the driving gear to rotate. Under the meshing transmission of the teeth, the side swing arm flips along the fan-shaped toothed disc until it reaches the top of the material box. Then the control unit in the trackless rubber-wheeled material vehicle controls the suspension drive motor to start, and then the hook will be lowered, and then the material box will be lifted by the hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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 only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention before the material box is hoisted;

[0031] Figure 2 This is a three-dimensional structural diagram of the present invention after the material box is hoisted;

[0032] Figure 3 For display Figure 1 An internal cross-sectional view of the pneumatic material box restraint assembly when the material box is positioned;

[0033] Figure 4 for Figure 3 A three-dimensional structural diagram of the medium-pressure material box restraint assembly;

[0034] Figure 5 for Figure 1 The three-dimensional structure of the middle swing arm driven loading and unloading mechanism Figure 1 ;

[0035] Figure 6 for Figure 1 The three-dimensional structure of the middle swing arm driven loading and unloading mechanism Figure 2 .

[0036] Markings in the figure: 1-trackless rubber-wheeled material vehicle; 2-swing arm driven loading and unloading mechanism; 201-positioning base; 202-fan-shaped frame door; 203-fan-shaped slide; 204-slide rail; 205-side swing arm; 206-suspension arm; 207-flip drive motor; 208-driving gear; 209-fan-shaped gear plate; 21-lifting assembly; 2101-hanging suspension; 2102-suspension drive motor; 2103-steel wire; 2104-hook; 3-material transport cavity; 4-pneumatic material box restraint assembly; 401-air storage box; 402-corrugated trigger air pipe; 403-down pressure bottom plate; 404-air supply pipe; 405-corrugated clamping air pipe; 406-side clamp seat; 407-guide shaft; 408-spring; 5-material box. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] like Figures 1 to 4 As shown, an automatic loading and unloading device for a trackless rubber-wheeled vehicle for a coal mine comprises a trackless rubber-wheeled material vehicle 1, a swing arm driven loading and unloading mechanism 2 is fixedly installed at the rear end of the trackless rubber-wheeled material vehicle 1, and a material transport cavity 3 is opened at the front end of the trackless rubber-wheeled material vehicle 1;

[0039] A pneumatic material box restraint assembly 4 is installed at the bottom of the inner cavity of the material transport cavity 3. The trackless rubber-wheeled material vehicle 1 can suspend and transport the material box 5 into the material transport cavity 3 through the swing arm driven loading and unloading mechanism 2. From the moment the material box 5 contacts the bottom of the material transport cavity 3, the material box 5 is gradually clamped and fixed by the pneumatic material box restraint assembly 4, wherein the material box 5 contains ore;

[0040] The pneumatic material box restraint assembly 4 includes an air storage box 401, and the top of the air storage box 401 is fixedly connected to a downward pressure bottom plate 403 through a corrugated trigger air pipe 402. The corrugated trigger air pipe 402 and the downward pressure bottom plate 403 are both located at the bottom of the inner cavity of the material transport chamber 3. The left and right sides of the air storage box 401 are respectively connected with air supply pipes 404, which penetrate the left and right sides of the inner cavity of the material transport chamber 3. The air supply pipe 404 is fixedly connected to a side clamp seat 406 through a corrugated clamping air pipe 405.

[0041] The automatic loading and unloading device can suspend and transport the material box 5 to the material transport chamber 3 through the swing arm driven loading and unloading mechanism 2, so as to realize automatic loading and unloading of materials. When the material box 5 contacts the bottom of the material transport chamber 3, the material box 5 slowly presses down the corrugated triggering air pipe 402 of the pneumatic material box restraint component 4 under the action of gravity. At the same time, the corrugated clamping air pipe 405 of the pneumatic material box restraint component 4 is gradually inflated and fed. Finally, the side of the material box 5 can be clamped and fixed by the side clamp seat 406 of the pneumatic material box restraint component 4. Then, the material box 5 of the trackless rubber-wheeled material vehicle 1 will be more stable during transportation.

[0042] like Figure 4 As shown, a plurality of vertically arranged anti-skid grooves are provided on the contact surface of the side clamp seat 406. In order to further improve the stability after clamping, the anti-skid grooves are provided to increase the friction force when the two contact, thereby improving the stability after clamping.

[0043] like Figure 4 As shown, the four corners of the pressing bottom plate 403 are respectively slidably connected to the guide shaft 407 vertically fixed at the bottom of the inner cavity of the material transport cavity 3, and the guide shaft 407 is sleeved with a spring 408 that pushes the pressing bottom plate 403 to move upward;

[0044] When the material box 5 is not placed above the pressing bottom plate 403 , the pressing bottom plate 403 is then pushed upward by the spring 408 , and at this time, all the air in the corrugated clamping air pipe 405 enters into the corrugated triggering air pipe 402 .

[0045] In order to reset the downward pressing bottom, when the material box 5 is lifted and unloaded from the material transport chamber 3, once the material box 5 leaves the downward pressing bottom plate 403, it will be pushed upward under the elastic action of the spring 408. At this time, all the air in the corrugated clamping air pipe 405 enters the corrugated triggering air pipe 402, thereby achieving reset.

[0046] like Figure 4 As shown, the gas in the gas storage box 401 is a normal pressure gas, which is an inert gas, such as nitrogen. In order to improve the stability of gas transmission, inert gas is used for gas transmission. Inert gas is less affected by external conditions such as temperature, which can improve the stability of gas transmission.

[0047] like Figure 4 As shown, the bellows triggering air tube 402 and the bellows clamping air tube 405 are both metal bellows, such as stainless steel bellows. In order to prevent the bellows triggering air tube 402 and the bellows clamping air tube 405 from deforming other than the telescopic state, a metal bellows with high hardness is used to avoid other deformations during clamping.

[0048] like Figure 5 to Figure 6 As shown, the swing arm driven loading and unloading mechanism 2 includes a positioning base 201 fixed on the trackless rubber-wheeled material vehicle 1, and vertically arranged fan-shaped frame doors 202 are fixed on the left and right sides of the positioning base 201. A fan-shaped slide 203 is opened on the fan-shaped frame door 202, and a side swing arm 205 is slidably installed in the fan-shaped slide 203 through a slide rail 204. The bottom of the side swing arm 205 is concentrically movably installed at the center of the fan-shaped frame door 202, and a suspension arm 206 is commonly connected between the tops of the two side swing arms 205, and a lifting assembly 21 is also installed at the center of the suspension arm 206;

[0049] A flip drive motor 207 is fixed on the side swing arm 205, a driving gear 208 is coaxially connected to the rotating shaft of the flip drive motor 207, and a fan-shaped toothed disc 209 meshing with the driving gear 208 is fixed on the door top of the fan-shaped frame door 202;

[0050] The lifting assembly 21 includes a lifting suspension 2101, the center of the lifting suspension 2101 is a rotatable central axis, and a suspension drive motor 2102 for driving the central axis to rotate is installed on the side wall of the lifting suspension 2101. A steel wire 2103 is wound around the central axis, and a hook 2104 is fixedly connected to the end of the steel wire 2103. The material box 5 can be lifted by the hook 2104;

[0051] The overturning drive motor 207 and the suspension drive motor 2102 are both driven by the control unit in the trackless rubber-tyred material vehicle 1.

[0052] In order to realize the lifting and flipping transportation of the material box 5, during operation, the control unit in the trackless rubber-wheeled material vehicle 1 controls the flipping drive motor 207 to start, and then drives the driving gear 208 to rotate. Under the meshing transmission of the teeth, the side swing arm 205 flips along the fan-shaped toothed disc 209 until it reaches the top of the material box 5. Then, the control unit in the trackless rubber-wheeled material vehicle 1 controls the suspension drive motor 2102 to start, and at this time, the hook 2104 is lowered, and then the material box 5 is lifted by the hook 2104.

[0053] The working principle of this utility model:

[0054] When in use, the trackless rubber-wheeled material vehicle 1 is driven to the front side of the material box 5, and the control unit in the trackless rubber-wheeled material vehicle 1 controls the flipping drive motor 207 to start, and then drives the driving gear 208 to rotate. Under the meshing transmission of the teeth, the side swing arm 205 is flipped along the fan-shaped toothed disc 209 until it reaches the top of the material box 5. Then the control unit in the trackless rubber-wheeled material vehicle 1 controls the suspension drive motor 2102 to start, and at this time, the hook 2104 is lowered, and then the material box 5 is lifted by the hook 2104 until the material box 5 is placed in the material transport cavity 3.

[0055] From the moment the material box 5 contacts the bottom of the material transport chamber 3, the material box 5 slowly presses down the corrugated trigger air pipe 402 of the pneumatic material box restraint assembly 4 under the action of gravity. At the same time, the corrugated clamping air pipe 405 of the pneumatic material box restraint assembly 4 is gradually inflated and fed. Finally, the side of the material box 5 can be clamped and fixed by the side clamp seat 406 of the pneumatic material box restraint assembly 4, so that the material box 5 will be more stable during transportation of the trackless rubber-wheeled material vehicle 1.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic loading device for a trackless rubber-wheeled vehicle for a coal mine, comprising a trackless rubber-wheeled material vehicle (1), a swing arm driven loading and unloading mechanism (2) being fixedly installed at the rear end of the trackless rubber-wheeled material vehicle (1), and a material transport cavity (3) being provided at the front end of the trackless rubber-wheeled material vehicle (1); Features: A pneumatic material box restraint assembly (4) is installed at the bottom of the inner cavity of the material transport cavity (3); the trackless rubber-wheeled material vehicle (1) is capable of suspending and conveying the material box (5) into the material transport cavity (3) through a swing arm driven loading and unloading mechanism (2); from the moment the material box (5) contacts the bottom of the material transport cavity (3), the material box (5) is gradually clamped and fixed by the pneumatic material box restraint assembly (4); The pneumatic material box restraint assembly (4) comprises an air storage box (401), the upper part of which is fixedly connected to a downward pressing bottom plate (403) via a corrugated trigger air pipe (402), the corrugated trigger air pipe (402) and the downward pressing bottom plate (403) are both located at the bottom of the inner cavity of the material transport cavity (3), the left and right sides of the air storage box (401) are respectively connected with air delivery pipes (404), the air delivery pipes (404) penetrate the left and right sides of the inner cavity of the material transport cavity (3), and the air delivery pipes (404) are fixedly connected to side clamping seats (406) via corrugated clamping air pipes (405).

2. The automatic changing device for a trackless rubber-tyred vehicle for coal mines according to claim 1 is characterized in that: A plurality of vertically arranged anti-slip grooves are provided on the contact surface of the side clamp seat (406).

3. The automatic changing device for a trackless rubber-tyred vehicle for coal mines according to claim 2 is characterized in that: The four corners of the pressing bottom plate (403) are respectively slidably connected to a guide shaft (407) vertically fixed to the bottom of the inner cavity of the material transport cavity (3); the guide shaft (407) is sleeved with a spring (408) for pushing the pressing bottom plate (403) to move upward.

4. The automatic changing device for a trackless rubber-tyred vehicle for coal mines according to claim 3 is characterized in that: When the material box (5) is not placed above the pressing bottom plate (403), the pressing bottom plate (403) then moves upward under the push of the spring (408), and at this time, all the air in the corrugated clamping air pipe (405) enters the corrugated triggering air pipe (402).

5. The automatic changing device for a trackless rubber-tyred vehicle for coal mines according to claim 4 is characterized in that: The gas in the gas storage box (401) is normal pressure gas, which is an inert gas.

6. The automatic changing device for a trackless rubber-tyred vehicle for coal mines according to claim 5 is characterized in that: The corrugated triggering air tube (402) and the corrugated clamping air tube (405) are both metal bellows.

7. The automatic changing device for a trackless rubber-tyred vehicle for coal mines according to claim 1 is characterized in that: The swing arm driven loading and unloading mechanism (2) comprises a positioning base (201) fixed on the trackless rubber-wheeled material vehicle (1), and vertically arranged fan-shaped frame doors (202) are fixed on the left and right sides of the positioning base (201), and a fan-shaped slide groove (203) is provided on the fan-shaped frame door (202), and a side swing arm (205) is slidably installed in the fan-shaped slide groove (203) through a slide rail (204), and the bottom of the side swing arm (205) is concentrically movably installed at the center of the fan-shaped frame door (202), and a suspension arm (206) is commonly connected between the tops of the two side swing arms (205), and a lifting assembly (21) is also installed at the center of the suspension arm (206).

8. The automatic changing device for a trackless rubber-tyred vehicle for coal mines according to claim 7 is characterized in that: A turning drive motor (207) is fixed on the side swing arm (205), a driving gear (208) is coaxially connected to the rotating shaft of the turning drive motor (207), and a fan-shaped toothed disc (209) meshing with the driving gear (208) is fixed on the door top of the fan-shaped frame door (202).

9. The automatic changing device for a trackless rubber-tyred vehicle for coal mines according to claim 8 is characterized in that: The lifting assembly (21) includes a lifting suspension (2101), the center of the lifting suspension (2101) is a rotatable central axis, the side wall of the lifting suspension (2101) is installed with a suspension drive motor (2102) for driving the central axis to rotate, a steel wire (2103) is wound around the central axis, and the end of the steel wire (2103) is fixedly connected with a hook (2104), and the material box (5) can be lifted by the hook (2104).

10. The automatic changing device for a trackless rubber-tyred vehicle for coal mines according to claim 9 is characterized in that: The tilting drive motor (207) and the suspension drive motor (2102) are both driven by a control unit in the trackless rubber-tyred material vehicle (1).

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