A feeding and conveying device for dry spraying support in a tunnel

Abstract

The present invention discloses a feeding and conveying device for dry spraying support in a tunnel, belonging to the technical field of concrete spraying construction. A feeding and conveying device for dry spraying support in a tunnel includes a main frame, a conveying mechanism is arranged on the upper side of the main frame, a baffle is arranged at the front end of the main frame, and an adjusting support frame is arranged at the rear end of the main frame, and the height of the adjusting support frame is adjustable. The present invention operates efficiently and stably, reduces costs, speeds up the construction efficiency, improves the construction quality, and protects the health of operators.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete shotcreting construction, and particularly to a feeding and conveying device for dry shotcreting support in a tunnel. Background Art

[0002] At present, in medium and small-sized water conservancy projects in China, the excavation construction of small-section tunnels is gradually increasing; among them, most are water diversion and irrigation projects. The tunnel projects have the characteristics of small cross-section, long distance, and low degree of mechanization. During the construction process, advanced support, excavation, anchor rods, wire meshing, shotcreting, etc. are required. Among them, the support construction after the excavation construction is a key process to ensure the stability of the chamber and the safety of subsequent construction. During the construction, in order to speed up the progress and reduce the construction cost in the process, the dry shotcreting method is adopted for the shotcreting construction.

[0003] The dry shotcreting method is to screen a mixture of sand, gravel, cement, admixtures, etc. through wind pressure, and then send it to the sprayed surface through a shotcreting machine, an air duct, and a nozzle (adding water) to complete the shotcreting construction of the tunnel. After the mixture is mixed by a mixer, it is transported to the vicinity of the shotcreting machine; manual feeding is carried out shovelful by shovelful with a shovel until the feeding process of the shotcreting machine is completed, and there are many disadvantages.

[0004] 1) During the feeding process, 3 to 4 people must operate, consuming a large amount of labor.

[0005] 2) Multiple people feed at the same time, and the feeding speed and feeding amount of the personnel are used to meet the feeding needs of the shotcreting machine, so as to ensure the continuity of the shotcreting construction and the construction quality; however, in the actual process, due to human reasons, the feeding speed and quantity of manual feeding cannot be controlled, resulting in uneven feeding at the feeding port of the shotcreting machine, sometimes more and sometimes less, and often there are situations where the equipment runs idly or the feeding is too much and blocks the material port, making the process time long.

[0006] 3) The feeding construction personnel are near the shotcreting machine. During the feeding process, the mixture is in a dry powder state. After entering the shotcreting machine, a large amount of dust is generated by the blowing of the wind pressure; although the construction personnel wear dust masks, being in a dust environment for a long time still has a certain impact on the physical health of the personnel.

[0007] Therefore, the method of manual feeding of dry shotcrete affects the continuity of the shotcreting construction and indirectly affects the quality of the shotcrete; a large amount of dust in the process also causes certain damage to the physical and mental health of the feeding personnel. Summary of the Invention

[0008] The purpose of the present invention is to propose a feeding and conveying device for dry shotcreting support in a tunnel to replace manual operation for efficient and stable operation; to solve the problems in the prior art that the labor intensity of shotcreting construction is large, it affects the health of the operators, and the construction quality is not easy to control.

[0009] To achieve the above object, the present invention adopts the following technical solutions:

[0010] A tunnel dry shotcrete support feeding and conveying device includes a main frame. A conveying mechanism is arranged on the upper side of the main frame. A baffle is arranged at the front end of the main frame. An adjusting support frame is arranged at the rear end of the main frame, and the height of the adjusting support frame is adjustable.

[0011] In some embodiments, anti-deviation wheels are arranged on the upper side of the main frame;

[0012] Two of the anti-deviation wheels are symmetrically arranged as a group, respectively located on both sides of the conveying mechanism, and the clamping distance between the relatively inner sides of the two anti-deviation wheels is adjustable.

[0013] In some embodiments, slide rails are arranged on the upper side surface of the main frame, and the anti-deviation wheels are slidably installed in the slide rails;

[0014] The anti-deviation wheel is composed of a slide plate and a vertical rotating wheel;

[0015] The slide plate is inserted into the slide rail, and the vertical rotating wheel is arranged on the upper side surface of the slide plate.

[0016] In some embodiments, a transmission auxiliary rotating shaft is arranged on the upper side of the main frame, and the transmission auxiliary rotating shaft is slidably connected to the main frame;

[0017] The transmission auxiliary rotating shaft is composed of two symmetrical parts, and the relatively inner sides of the two parts are connected by an adjustable screw rod.

[0018] In some embodiments, the adjustable screw rod is composed of a first threaded rod and a first internal threaded cylinder;

[0019] One of the first threaded rods is arranged on each of the relatively inner sides of the two parts of the transmission auxiliary rotating shaft, and the first internal threaded cylinder connects the two first threaded rods at both ends.

[0020] In some embodiments, the conveying mechanism is composed of a driving wheel, a driven wheel, a conveyor belt and a motor;

[0021] The driving wheel is arranged at a position close to the front end of the main frame, the driven wheel is arranged at a position close to the rear end of the main frame, and the conveyor belt is sleeved on the outer surfaces of the driving wheel and the driven wheel;

[0022] The motor is in transmission connection with the driving wheel.

[0023] In some embodiments, the motor is arranged above the main frame through a support seat.

[0024] In some embodiments, a rubber plate is arranged on the inner side surface of the baffle.

[0025] In some embodiments, the adjusting support frame is composed of a second internal thread cylinder and a second threaded rod;

[0026] The second internal thread cylinder is arranged on both sides of the main frame, and the second threaded rod is threadedly connected to the second internal thread cylinder.

[0027] In some embodiments, walking wheels are arranged on the lower side of the main frame.

[0028] Compared with the prior art, the present invention provides a tunneling dry spraying support feeding and conveying device, which has the following beneficial effects:

[0029] 1. The present invention replaces manual operation with high efficiency and stability, reduces costs, speeds up construction efficiency, improves construction quality, and protects the health of operators.

[0030] 2. The present invention is provided with a baffle plate to save materials and avoid harm to operators; an adjusting support frame is provided to adapt to the construction site and ensure the conveying effect; the anti-deviation wheel can be adjusted to match the actual operation state; the transmission auxiliary rotating shaft can be freely installed, disassembled and adjusted, which is simple, efficient and more convenient to fit the working conditions; it can be reused to expand its application range.

[0031] Parts not involved in the device are the same as or can be implemented by the prior art. The present invention replaces manual operation with high efficiency and stability, reduces costs, speeds up construction efficiency, improves construction quality, and protects the health of operators; a baffle plate is provided to save materials and avoid harm to operators; an adjusting support frame is provided to adapt to the construction site and ensure the conveying effect; the anti-deviation wheel can be adjusted to match the actual operation state; the transmission auxiliary rotating shaft can be freely installed, disassembled and adjusted, which is simple, efficient and more convenient to fit the working conditions; it can be reused to expand its application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of the present invention;

[0033] Figure 2 is a schematic structural diagram after removing the conveyor belt;

[0034] Figure 3 is Figure 2 an enlarged structural diagram of part A in

[0035] Figure 4 is Figure 2 an enlarged structural diagram of part B in

[0036] Figure 5 is a schematic structural diagram of the anti-deviation wheel;

[0037] Figure 6 is Figure 2Schematic enlarged structure diagram at position C in the [Chinese context, not clear without more info];

[0038] Figure 7 Schematic structure diagram of the adjustable screw rod;

[0039] Figure 8 Schematic diagram of the usage state of the present invention.

[0040] In the figure: 1, main frame; 2, conveying mechanism; 201, driving wheel; 202, driven wheel; 203, conveyor belt; 204, motor; 3, baffle plate; 4, adjusting support frame; 401, second internal thread cylinder; 402, second threaded rod; 5, anti - deviation wheel; 501, sliding plate; 502, vertical rotating wheel; 6, slide rail; 7, transmission auxiliary rotating shaft; 8, adjustable screw rod; 801, first threaded rod; 802, first internal thread cylinder; 9, support seat; 10, rubber plate; 11, traveling wheel. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0043] Refer to Figure 1-8 , a tunneling dry - shotcreting support feeding and conveying device, including a main frame 1. The two long sides of the main frame 1 are made of channel steel, and the openings of the channel steel face outward; angle steel is arranged inside the main frame 1 for connection, and connecting steel bars are arranged for reinforcement; a conveying mechanism 2 is arranged on the upper side of the main frame 1, and the conveying mechanism 2 conveys materials from the rear side to the front side.

[0044] Among them, the conveying mechanism 2 is composed of a driving wheel 201, a driven wheel 202, a conveyor belt 203 and a motor 204.

[0045] Specifically, the driving wheel 201 is arranged at a position of the main frame 1 close to the front end, the driven wheel 202 is arranged at a position of the main frame 1 close to the rear end, the conveyor belt 203 is sleeved on the outer surfaces of the driving wheel 201 and the driven wheel 202; the motor 204 is in transmission connection with the driving wheel 201.

[0046] Furthermore, the motor 204 is arranged above the main frame 1 through a support seat 9.

[0047] The lower part of the support base 9 is connected to the upper side of the main frame 1, and a motor 204 is installed on the top; a space is reserved in the middle for the conveyor belt 203 to pass through; the height of the support base 9 is controlled so as not to affect the material conveyance.

[0048] A baffle plate 3 is provided at the front end of the main frame 1.

[0049] Specifically, the baffle plate 3 extends upward; the width of both sides is not less than the left - right width of the main frame 1 and can appropriately exceed the main frame 1 to better ensure the blocking effect on the material; the top end of the baffle plate 3 inclines towards the rear of the main frame 1, that is, the top inclines inwards; thus, when the material strikes the baffle plate 3, it will not bounce upwards and the material will fall downwards, further ensuring the blocking effect.

[0050] Furthermore, a rubber plate 10 is provided on the inner side of the baffle plate 3.

[0051] By adding the rubber plate 10, the material does not collide with the baffle plate 3, reducing the generation of noise; at the same time, the wear of the baffle plate 3 is reduced.

[0052] During the use of the rubber plate 10, if excessive wear occurs, it needs to be replaced in time.

[0053] An adjusting support frame 4 is provided at the rear end of the main frame 1; the adjusting support frame 4 adjusts and lifts the height of the rear end of the main frame 1.

[0054] Specifically, the adjusting support frame 4 is arranged on the left and right sides of the main frame 1 near the rear side position so as not to affect the conveying mechanism 2; the height of the adjusting support frame 4 can be adjusted; by adjusting the height of the adjusting support frame 4, the height of the tail end of the equipment is changed, thereby adjusting the overall inclination angle of the equipment to adapt to the construction site and ensuring the conveying effect.

[0055] In some embodiments, the adjusting support frame 4 is composed of a second internal - thread cylinder 401 and a second threaded rod 402.

[0056] Specifically, the second internal - thread cylinder 401 is arranged on both sides of the main frame 1, its axis is vertically downward, and the second threaded rod 402 is threadedly connected with the second internal - thread cylinder 401.

[0057] By adjusting the extending length of the second threaded rod 402 downward, the support adjustment of the equipment is realized; both sides can be adjusted independently to cope with the working condition environment of uneven ground.

[0058] In some embodiments, a deviation - preventing wheel 5 is provided on the upper side of the main frame 1.

[0059] Among them, at least one set of anti-deviation wheels 5 is provided at each of the front and rear ends of the main frame 1 to limit the conveying device during operation and prevent the conveyor belt 203 from deviating. It can be added at the middle position according to the total length of the equipment.

[0060] The top of the anti-deviation wheel 5 is higher than the conveyor belt 203. Preferably, it is 2-5 cm higher. If it is too low, the limiting effect cannot be guaranteed.

[0061] Two anti-deviation wheels 5 are symmetrically set as a group and are respectively located on both sides of the conveyor belt 203. The clamping distance between the relatively inner sides of the two anti-deviation wheels 5 can be adjusted, so as to better match the actual operating state.

[0062] Furthermore, in some embodiments, a slide rail 6 is provided on the upper side of the main frame 1, and the anti-deviation wheel 5 is slidably installed in the slide rail 6.

[0063] Specifically, the anti-deviation wheel 5 is composed of a slide plate 501 and a vertical rotating wheel 502. The slide plate 501 is a flat plate. The top of the slide rail 6 is open, and the path direction is vertically towards the inside of the main frame 1. The slide plate 501 is inserted into the slide rail 6, and the vertical rotating wheel 502 is arranged on the upper side of the slide plate 501.

[0064] By sliding the slide plate 501, the distance between the anti-deviation wheel 5 and the conveyor belt 203 is adjusted. The two anti-deviation wheels 5 on both sides are adjusted independently. After determining the position, the position of the slide plate 501 is locked. The form of using a bolt to penetrate the top of the slide rail 6 and touch the upper surface of the slide plate 501 can be adopted. The position is limited by screwing in the bolt.

[0065] In some embodiments, a transmission auxiliary rotating shaft 7 is provided on the upper side of the main frame 1.

[0066] Among them, several transmission auxiliary rotating shafts 7 are provided. The installation quantity is matched according to the load of the conveyed material and the conveying length. An appropriate number of transmission auxiliary rotating shafts 7 are installed to prevent the conveyor belt 203 from sagging when spraying and anchoring materials and increase the transmission auxiliary force of the conveyor belt 203.

[0067] Specifically, the transmission auxiliary rotating shaft 7 is composed of two symmetrical parts, and each part is provided with a rotating shaft and a support seat. The rotating shaft among them is installed horizontally, and its outer surface contacts the conveyor belt 203 to provide support force. The rotating shaft is installed through the support seat.

[0068] Furthermore, the transmission auxiliary rotating shaft 7 is slidably connected to the main frame 1, and the relatively inner sides of the two parts of the transmission auxiliary rotating shaft 7 are connected by an adjustable screw rod 8.

[0069] Specifically, the outer end of the transmission auxiliary rotating shaft 7 is of a U-shaped structure; the opening of the U-shaped structure faces inwards and is hung on the outside of the main frame 1 so that it can slide along the edge of the main frame 1; after the two parts on both sides are aligned to the appropriate positions, they are connected by an adjustable screw rod 8; the adjustable screw rod 8 tightens the two parts inwards, thereby fixing their positions and preventing further movement.

[0070] The transmission auxiliary rotating shaft 7 is set to be slidably installed, connected and locked in position with the adjustable screw rod 8, which can be freely installed, disassembled, and its position can be adjusted at any time; it is simple, efficient, and more convenient to fit the working conditions; moreover, it can be used for main frames 1 of different widths, can be reused, and expands its scope of application.

[0071] Further, in some embodiments, the adjustable screw rod 8 is composed of a first threaded rod 801 and a first internal threaded cylinder 802.

[0072] Specifically, a first threaded rod 801 is provided on the inner sides of the two parts of the transmission auxiliary rotating shaft 7 that face each other, and the first internal threaded cylinder 802 connects the two first threaded rods 801 at both ends; thereby, it is locked and fixed.

[0073] In some embodiments, walking wheels 11 are provided on the lower side of the main frame 1.

[0074] Preferably, the walking wheels 11 adopt single-row double wheels of a handcart; so that the equipment is light and can move quickly, and its position can be adjusted according to the on-site situation at any time; for work and parking, it can be dragged only by manpower and parked alongside without affecting the construction operations of other processes.

[0075] The 6th construction bid of the Xiaolangdi South Bank Irrigation Area Project constructed by the China Water Resources and Hydropower Eleventh Engineering Bureau Co., Ltd. is located in Chengguan Town, Chaoyang Town and Songzhuang Town of Mengjin, Luoyang City. The construction content includes the channels and buildings of the First, Second, and Third Main Canals. Among them, all the tunnels under construction are soil tunnels; the tunnels adopt a horseshoe shape, the designed longitudinal slopes are all 1:2000, the lining thickness of the tunnels is all 30 cm, and C30 reinforced concrete is used. The total length of the excavation of the diversion tunnels is 2,277.7 meters, and shotcrete support construction is adopted throughout the tunnel, with a total of 2,351 cubic meters of shotcrete sprayed. Due to the characteristics of small cross-section, long distance, and low mechanization degree of the tunnels, they are the key points and difficulties of this bid section and also the critical line of this bid section. The breakthrough of the tunnel excavation is the key to ensuring whether this project can be delivered and performed on schedule.

[0076] According to the general method, for the shotcrete construction with manual feeding, after calculation:

[0077] Manual feeding is adopted, and the excavation footage per cycle is 4 - 5 meters. The time for shotcreting per cycle is about 5 - 5.5 hours. The total length of the tunnel is 2,277.7 meters. The cumulative time for the shotcreting process is approximately: 2,277.7 / 4.5 * 5.5 / 24 ≈ 116 days. The labor consumption is approximately: 2,277.7 / 4.5 * 4 * 5.5 / 8 ≈ 1,392 man-days.

[0078] To accelerate the construction progress and ensure the completion of the tunnel excavation construction on schedule as planned, according to the construction characteristics and in combination with the actual on-site situation, the project changed the feeding method for shotcreting in tunnel excavation support, and manufactured a dry shotcreting support feeding and conveying equipment based on the tunnel dry shotcreting support feeding and conveying equipment described above.

[0079] The main frame 1 of the equipment is welded with 10# channel steel and 40*4 angle steel, and is connected and reinforced by φ20 steel bars in the middle. The total length of the equipment is 4.3 meters and the width is 0.75 meters. Among them, the height and length of the main frame 1 are determined according to the on-site construction situation to ensure that when in the working state, it meets the best slope for shotcreting feeding in the tunnel and the best height from the discharge to the hopper of the shotcreting machine, and is convenient for parking when idle without affecting the construction of other processes.

[0080] The 5# channel steel is used for the welding connection between the main frame 1 and the bearings of the walking wheels 11 in an inverted triangle shape. The walking wheels 11 are hand-pushed wheels, single-row double-wheels, and the wheel diameter is 0.64 meters.

[0081] The conveyor belt is 0.49 meters wide and 2 centimeters thick.

[0082] The upper part of the main frame 1 is equipped with anti-deviation wheels 5 and transmission auxiliary rotating shafts 7.

[0083] The anti-deviation wheels 5 are respectively installed at the position 0.65 meters from the front end and the position 0.4 meters from the end of the main frame 1; the installation height is 0.21 meters, the diameter of the rotating wheel is 5 centimeters, and it is about 2 centimeters higher than the belt to prevent the conveyor belt from deviating during rotation.

[0084] The transmission auxiliary rotating shafts 7 are set in groups at an interval of 0.6 meters; their diameter is 7 centimeters; to prevent the belt from sagging when conveying shotcrete and to increase the transmission auxiliary force of the belt; the belt conveying speed is controlled at 0.7 meters per second, which can meet the on-site feeding requirements.

[0085] The conveyor mechanism 2 is installed on the upper part of the main frame 1; among them, the motor 204 is a 3KW asynchronous motor, which is installed on the support seat 9 at the front end of the equipment; the support seat 9 is set to be 0.335 meters wide, 0.35 meters high, and 0.75 meters long, and is welded to the main frame 1; the motor 204 and the support seat 9 are connected by bolts.

[0086] The baffle plate 3 is installed at the front end of the main frame 1. The skeleton of the baffle plate 3 is made of 40*4 angle iron, inlaid with a 2-centimeter rubber plate, and the height is 0.3 meters, to block the conveyed shotcrete and accurately fall into the hopper of the shotcreting machine.

[0087] The front end of the main frame 1 is provided with an adjustable support frame 4 to adjust the height during use.

[0088] This device is processed and assembled according to the construction characteristics of small tunnel cross-section and long distance; when the device is working and parked, it closely follows the excavation face, with the principle of not affecting the mucking of the tunnel and the passage of other mechanical equipment.

[0089] When using this device for construction, the motor 204 drives the conveyor belt 203 to rotate continuously, and conveys the shotcrete mixture quantitatively and continuously to the shotcreting machine; the conveying mechanism 2 is controlled by an electric switch, and according to the on-site shotcreting situation, the conveying time, position and angle are adjusted in real time to carry out shotcreting feeding quantitatively and continuously; effectively solves the problems of overfeeding caused by human reasons, resulting in blockage of the shotcreting machine, and construction discontinuity caused by lack of material and idling of the shotcreting machine; thus, shortening the construction time of the shotcrete support process; adjusting the conveying equipment into a slope, and the end effectively penetrates into the material pile, and only need to ensure that there is enough mixture at the penetrated end manually; greatly reducing the personnel configuration of the shotcrete construction process, thus solving the problem of large labor costs; the length of the conveyor belt is about 4.3 meters, which can fully keep the operator away from the feeding port of the shotcreting machine, avoiding harm to the physical health of construction workers caused by excessive dust during the dry shotcreting operation.

[0090] Using this device in the project effectively shortens the construction time of the shotcrete support process, solves the problem of large labor costs, and avoids harm to the health of personnel during the operation, efficiently ensuring the continuous and safe construction of the shotcrete support and improving the construction quality.

[0091] After calculation: after using this device, each cycle is shortened from the original 5.5 hours to 3.5 hours, and the saved construction period is approximately: 2277.7 / 4.5*2 / 24≈42 days; the personnel configuration is reduced from the original 4 people to 2 people, and the saved labor cost is approximately: 2277.7 / 4.5*2*2 / 8≈253 man-days; greatly improving the construction efficiency of the shotcrete support, compressing the operation time of the shotcrete support work, accelerating the tunneling cycle footage, enabling continuous shotcrete operation, ensuring the construction quality of the shotcrete, and at the same time reducing the on-site construction operator configuration and saving the construction cost investment.

[0092] This invention replaces manual operation with high efficiency and stability, reduces costs, speeds up construction efficiency, improves construction quality, and protects the health of operators.

[0093] In the present invention, a baffle plate 3 is provided to prevent materials from flying outwards, saving materials and avoiding impact injuries to operators; a rubber plate 10 is provided to reduce noise and losses; an adjusting support frame 4 is provided to adjust and lift the height of the rear end of the main frame 1 to adapt to the construction site and ensure the conveying effect; both sides can be adjusted independently to cope with the working condition environment with uneven bottom surfaces; the clamping distance of the anti-deviation wheel 5 can be adjusted to match the actual operating state; the transmission auxiliary rotating shaft 7 is slidably installed and connected to and locked in position with an adjustable lead screw 8, and can be freely installed, disassembled, and its position can be adjusted at any time; it is simple, efficient, and more convenient to fit the working conditions; moreover, it can be used for main frames 1 of different widths, can be reused, and expands its scope of application.

[0094] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A feeding and conveying device for dry spraying support in a tunnel, characterized in that, It includes a main frame (1). The two long sides of the main frame (1) adopt channel steel, and the openings of the channel steel face outward. Angle steel is arranged inside the main frame (1) for connection, and connecting steel bars are arranged for reinforcement. A conveying mechanism (2) is arranged on the upper side of the main frame (1), a material baffle (3) is arranged at the front end of the main frame (1), an adjusting support frame (4) is arranged at the rear end of the main frame (1), and the height of the adjusting support frame (4) can be adjusted. The material baffle (3) extends upward, and the top end inclines toward the rear part of the main frame (1). When the material strikes the material baffle (3), it will not bounce upward. A rubber plate (10) is arranged on the inner side surface of the material baffle (3) to reduce the generation of noise. At the same time, the loss of the material baffle (3) is reduced. Anti-deviation wheels (5) are arranged on the upper side of the main frame (1). Two anti-deviation wheels (5) are symmetrically arranged as a group and are respectively located on both sides of the conveying mechanism (2). The clamping distance between the relatively inner sides of the two anti-deviation wheels (5) can be adjusted. A slide rail (6) is arranged on the upper side surface of the main frame (1), and the anti-deviation wheels (5) are slidably installed in the slide rail (6). The anti-deviation wheel (5) is composed of a slide plate (501) and a vertical rotating wheel (502). The slide plate (501) is a flat plate and is inserted into the slide rail (6), and the vertical rotating wheel (502) is arranged on the upper side surface of the slide plate (501). The distance between the anti-deviation wheel (5) and the conveyor belt (203) is adjusted by sliding the slide plate (501). The position of the slide plate (501) is locked by a bolt penetrating the top of the slide rail (6) and touching the upper surface of the slide plate (501). A transmission auxiliary rotating shaft (7) is arranged on the upper side of the main frame (1), and the transmission auxiliary rotating shaft (7) is slidably connected with the main frame (1). The transmission auxiliary rotating shaft (7) is composed of two symmetrical parts, and the relatively inner sides of the two parts are connected by an adjustable screw rod (8). The outer end of the transmission auxiliary rotating shaft (7) is a U-shaped structure, and the opening of the U-shaped structure faces inward and is hung on the outside of the main frame (1) and slides along the edge of the main frame (1). The adjustable screw rod (8) is composed of a first threaded rod (801) and a first internal threaded cylinder (802). One first threaded rod (801) is arranged on the relatively inner side of each of the two parts of the transmission auxiliary rotating shaft (7), and the first internal threaded cylinder (802) connects the two first threaded rods (801) at both ends. The conveying mechanism (2) is composed of a driving wheel (201), a driven wheel (202), a conveyor belt (203) and a motor (204); the driving wheel (201) is arranged at a position close to the front end of the main frame (1), the driven wheel (202) is arranged at a position close to the rear end of the main frame (1), and the conveyor belt (203) is sleeved on the outer surfaces of the driving wheel (201) and the driven wheel (202); the motor (204) is in transmission connection with the driving wheel (201); the motor (204) is arranged above the main frame (1) through a bracket seat (9); the lower part of the bracket seat (9) is connected to the upper side surface of the main frame (1), and the motor (204) is installed at the top; a space is reserved in the middle for the conveyor belt (203) to pass through; the height of the bracket seat (9) is controlled so as not to affect the material conveying; The adjusting support frame (4) is composed of a second internal thread cylinder (401) and a second threaded rod (402); the second internal thread cylinder (401) is arranged on both sides of the main frame (1), and the second threaded rod (402) is in threaded connection with the second internal thread cylinder (401); by adjusting the downward extending length of the second threaded rod (402), the support adjustment of the equipment is realized; both sides can be adjusted independently to cope with the working condition environment of uneven ground; walking wheels (11) are arranged on the lower side of the main frame (1).

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