Telescopic belt conveyor matched with concrete mixing plant for use

Abstract

The utility model provides a telescopic belt conveyor matched with a concrete mixing plant for use, which can be suitable for various scales of concrete mixing plants, improves the construction efficiency, the conveying efficiency and the production efficiency of the concrete mixing plant, and comprises a walking chassis, a telescopic belt conveyor set, a steering conveyor set and a lifting conveyor set, the two ends of the bottom of the walking chassis are each provided with a wheel direction switching assembly, and at least one wheel direction switching assembly is provided with a traveling crane driving assembly. When the wheel direction switching assembly is started, the advancing direction of the tire is switched to front-back movement or left-right movement; the middle of the walking chassis is a chassis support, and the two ends of the chassis support are connected with wheel direction switching assemblies. The telescopic belt unit comprises an inclined belt unit, a first transverse belt unit and a second transverse belt unit capable of being contracted into the first transverse belt unit. The lifting unit controls the lifting angle and height of the first transverse belt unit.

Description

Technical Field

[0001] The utility model relates to the field of belt conveyors, in particular to a telescopic belt conveyor for a concrete mixing station. Background Art

[0002] There are two ways to transport finished materials in concrete mixing plants, namely, belt conveyor and pumping. For the transportation process of high-standard concrete, pumping is generally not allowed. Belt conveyors have a wider range of materials than ordinary ones, and can transport wet, dry, powdery and blocky materials as well as finished products. In addition, any place in the entire length of the belt conveyor can be designed as a loading and unloading point, and is widely used.

[0003] When the loading and unloading points are longer or higher than the full length of the machine, one or more transfer belts are often installed under the tail frame of the belt conveyor to adjust the overall transmission length and height. However, when using multiple transfer belts, the transfer belt position setting, the conveyor position adjustment, and the complicated construction process all require a lot of time to debug, which in turn affects the requirements of intelligent construction, the production efficiency of the concrete mixing plant, and the material transportation efficiency. Utility Model Content

[0004] The utility model aims to provide a telescopic belt conveyor for use in a concrete mixing station, which can be suitable for use in concrete mixing stations of various sizes and improve the construction efficiency and production efficiency of the concrete mixing station.

[0005] The embodiment of the utility model is achieved as follows:

[0006] A telescopic belt conveyor for a concrete mixing plant, the telescopic belt conveyor comprising: a walkable chassis, a telescopic belt unit, a steering unit and a lifting unit, wherein wheel direction switching components are respectively arranged at both ends of the bottom of the walkable chassis, and a driving component is arranged on at least one set of wheel direction switching components; when the wheel direction switching component is activated, the travel direction of the tire is switched to forward and backward movement or left and right movement; the middle part of the walkable chassis is a chassis bracket, and both ends of the chassis bracket are connected to the wheel direction switching components; the telescopic belt unit comprises an oblique belt unit, a first transverse belt unit and a second transverse belt unit that can be retracted into the first transverse belt unit; the steering unit is fixedly arranged at one end of the walkable chassis and rotatably connected to the bottom of the oblique belt unit, so that the oblique belt unit can rotate based on the steering unit; the lifting unit is fixedly arranged at the other end of the walkable chassis and connected to the bottom of the first transverse belt unit, and when the lifting unit is extended, the lifting angle and height of the first transverse belt unit are controlled.

[0007] In a preferred embodiment of the utility model, the above-mentioned wheel direction switching component includes: a rear axle assembly of a vehicle, a vertical support, a swing arm and a left / right moving drive motor group, the middle part of the rear axle assembly of the vehicle is equipped with a front and rear moving drive motor, and the two ends of the rear axle assembly of the vehicle are provided with front and rear moving tires; the vertical support is fixedly arranged in the middle part of the rear axle assembly of the vehicle, and a swing arm cylinder is arranged on both sides of the top of the vertical support, and the swing arm cylinder is connected to the swing arm, and the two ends of the swing arm are respectively connected to the swing arm cylinder and the left / right moving tire; the left / right moving drive motor group transmits power to the left / right moving tire through a sprocket and a transmission chain.

[0008] In a preferred embodiment of the present utility model, the above-mentioned left and right moving drive motor group includes: a left and right moving drive motor, a plurality of bearing seats and a transmission chain, the left and right moving drive motor is assembled on the upper surface of the rear axle assembly of the automobile; sprockets are assembled on the plurality of bearing seats, the bearing seats are assembled at both ends of the upper surface of the rear axle assembly of the automobile and on the left / right moving tires; the transmission chain sequentially connects the left and right moving drive motor and each sprocket to form a loop.

[0009] In a preferred embodiment of the present utility model, the telescopic belt conveyor is also provided with a plurality of balancing rods, one ends of which are distributed at the bottom of the oblique belt unit and the bottom of the first transverse belt unit, and the other ends of which are gathered on the same balancing support rod, which is located directly above the first transverse belt unit.

[0010] In a preferred embodiment of the utility model, the above-mentioned oblique belt unit includes an oblique frame, and the upper surface of the oblique frame is provided with a first grooved upper roller supporting the belt; the interior of the oblique frame is provided with an active roller, a belt tensioning device and a plurality of first belt return lower rollers.

[0011] In a preferred embodiment of the utility model, the above-mentioned first transverse belt unit includes a first transverse frame, the upper surface of the first transverse frame is provided with a second groove-shaped upper roller supporting the belt, a plurality of second belt return lower rollers are arranged in the first transverse frame, and the area between the second groove-shaped upper rollers and the second belt return lower rollers constitutes the accommodating space of the second transverse belt unit; a telescopic reducer is arranged on the inner wall of one side of the first transverse frame close to the second transverse belt unit, and the telescopic reducer is equipped with gears; a first redirecting roller is arranged at the return starting position of the second belt return lower roller.

[0012] In a preferred embodiment of the utility model, the above-mentioned second transverse belt unit includes a second transverse frame, racks meshing with gears are arranged on both sides of the second transverse frame, a third grooved upper roller supporting the belt is arranged on the upper surface of the second transverse frame, and a plurality of third belt return lower rollers are arranged in the second transverse frame; a second redirecting roller and a third redirecting roller are respectively arranged at both ends of the second transverse frame, and the second redirecting roller is located below the first redirecting roller.

[0013] In a preferred embodiment of the present utility model, a counterweight box is further provided on the lower surface of the above-mentioned inclined frame.

[0014] In a preferred embodiment of the present utility model, the above-mentioned steering unit includes a rotating seat and a steering motor connected to the oblique belt unit, and the rotating seat and the steering motor are both assembled at one end of the walkable chassis.

[0015] In a preferred embodiment of the present utility model, a material receiving hopper is also provided on the above-mentioned inclined belt conveyor unit.

[0016] The beneficial effects of the embodiments of the utility model are:

[0017] 1. Improve the traditional belt conveyor into a movable telescopic belt conveyor, so that it can be applied to the construction and use of concrete mixing plants of different specifications, especially for the transportation and distribution of finished materials, reduce the use of transfer belt conveyors, and thus save construction costs;

[0018] 2. By adding the movable function of the belt conveyor, the distance can be adjusted during the construction of the concrete mixing station or the transportation of finished concrete materials, while reducing the number of cranes and labor; the use of a walking chassis completes the automatic movement and position adjustment of the telescopic belt conveyor, with smooth movement, short time, small vibration and high efficiency;

[0019] 3. By setting up the steering unit and the lifting unit, the inclination angle control of the telescopic belt conveyor is completed, so that it can correspond to the construction of concrete mixing stations of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of the telescopic belt conveyor according to an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a walkable chassis according to an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of a wheel direction switching assembly according to an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of an oblique belt unit according to an embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the first transverse belt unit in an embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the second transverse belt unit according to an embodiment of the utility model.

[0027] Icons: 100-walkable chassis; 110-chassis bracket; 120-wheel direction switching assembly; 121-automobile rear axle assembly; 122-vertical support; 123-swing arm; 124-left and right moving drive motor group; 125-front and rear moving drive motor; 126-front and rear moving tire; 127-swing arm cylinder; 128-left / right moving tire; 129-clutch; 200-retractable belt unit; 210-oblique belt unit; 211-oblique frame; 212-first grooved upper roller; 213-active roller; 214-belt tensioning device; 215-first belt return lower roller; 216-counterweight box; 203 - receiving hopper; 220- first transverse belt unit; 221- first transverse frame; 222- second grooved upper roller; 223- second belt return lower roller; 224- telescopic reducer; 225- gear; 226- first redirecting roller; 230- second transverse belt unit; 231- second transverse frame; 232- rack; 233- third grooved upper roller; 234- third belt return lower roller; 235- second redirecting roller; 236- third redirecting roller; 201- balance rod; 202- balance support rod; 300- steering unit; 310- rotating seat; 320- steering motor; 400- lifting unit. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] First embodiment

[0035] See also Figure 1 and 2 The present embodiment provides a telescopic belt conveyor for a concrete mixing station, which is mainly used in conjunction with a concrete mixing station, especially in the material distribution process of the concrete mixing station, the finished material transportation process and other places where a belt conveyor is needed. The telescopic belt conveyor includes a walkable chassis 100, a telescopic belt unit 200, a steering unit 300 and a lifting unit 400.

[0036] The middle part of the walkable chassis 100 is a chassis bracket 110, and the two ends of the chassis bracket 110 are connected to the wheel direction switching assembly 120. The walkable chassis 100 is used to move the telescopic belt conveyor as a whole. Wheel direction switching assemblies 120 are respectively arranged at the front and rear of the chassis of the walkable chassis 100, and at least one set of wheel direction switching assemblies 120 is provided with a driving assembly. That is, the walkable chassis 100 can adopt any one of the three walking modes of front drive, rear drive or dual drive. In this figure, the rear drive mode is selected. When the wheel direction switching assembly 120 is enabled, the travel direction of the tire is switched to forward and backward movement or left and right movement.

[0037] See also Figure 3 As shown in the side view, the wheel direction switching assembly 120 includes a vehicle rear axle assembly 121, a vertical support member 122, a swing arm 123 and a left and right moving drive motor group 124.

[0038] A front-rear moving drive motor 125 is installed in the middle of the rear axle assembly 121 of the automobile, and front-rear moving tires 126 are arranged at both ends of the rear axle assembly 121 of the automobile. The front-rear moving drive motor 125 drives the front-rear moving tires 126 to move. Specifically, the tires are driven to rotate by the drive motor, clutch 129, bearing seat and drive sprocket wheel arranged in sequence.

[0039] The vertical support member 122 is fixedly arranged in the middle of the rear axle assembly 121 of the automobile. A swing arm cylinder 127 is arranged on both sides of the top of the vertical support member 122. The swing arm cylinder 127 is connected to the swing arm 123. The two ends of the swing arm 123 are respectively connected to the swing arm cylinder 127 and the left / right moving tire 128; the left and right moving drive motor group 124 transmits power to the left / right moving tire 128 through a sprocket and a transmission chain.

[0040] When it is necessary to move forward and backward, the swing arm oil cylinder 127 is retracted, so that the swing arm 123 and the left / right moving tire 128 provided on the swing arm 123 are lifted, and the front and rear moving tires 126 contact the ground to move forward and backward. When it is necessary to move left and right, on the contrary, the swing arm oil cylinder 127 is extended, so that the swing arm 123 and the left / right moving tire 128 provided on the swing arm 123 are lowered, and the front and rear moving tire 126 is slightly lifted, and the left / right moving tire 128 contacts the ground to move left and right.

[0041] Specifically, the left and right moving drive motor group 124 includes a left and right moving drive motor, multiple bearing seats and a transmission chain. The left and right moving drive motor is assembled on the upper surface of the automobile rear axle assembly 121; sprockets are assembled on the multiple bearing seats, and the bearing seats are assembled on both ends of the upper surface of the automobile rear axle assembly 121 and on the left / right moving tires 128; the transmission chain connects the left and right moving drive motors and each sprocket in sequence to form a loop.

[0042] When the swing arm 123 is extended by the oil cylinder, the swing arm 123 drives the left and right moving tires to descend, and the front and rear moving tires 126 are suspended in the air; the clutch 129 of the front and rear moving tires 126 is disconnected, the left and right moving motor clutch 129 is closed, and the drive motor is started, and the left and right movement can be realized during the forward and reverse rotation.

[0043] When the swing arm 123 is retracted by the oil cylinder, the swing arm 123 drives the left and right moving tires to rise in the air, so that the front and rear moving tires 126 fall to the ground, the left and right moving tire clutch 129 is disconnected, the front and rear moving motor clutch 129 is closed, and the drive motor is started, and the front and rear movement can be realized during the forward and reverse rotation.

[0044] The retractable belt unit 200 includes an oblique belt unit 210 , a first transverse belt unit 220 , and a second transverse belt unit 230 that can be retracted into the first transverse belt unit 220 .

[0045] Among them, see Figure 4 The oblique belt unit 210 is arranged on the front frame, the first transverse belt unit 220 is arranged on the middle frame, and the second transverse belt unit 230 is the tail frame. The second transverse belt unit 230 can be stored in the first transverse belt unit 220 or partially extended out of the first transverse belt unit 220, so as to adapt to the height of the unloading point or the loading point required by concrete mixing plants of different sizes and the transmission angle to be maintained during material transmission.

[0046] Specifically, the oblique belt unit 210 includes an oblique frame 211, and a first grooved upper roller 212 for supporting the belt is disposed on the upper surface of the oblique frame 211; an active roller 213 for providing power to the belt, a belt tensioning device 214 for tensioning the belt, and a plurality of first belt return lower rollers 215 for supporting the return belt are disposed inside the oblique frame 211. The entire return belt is disposed inside the frame to protect the belt, and a belt maintenance component may also be disposed inside the frame.

[0047] The belt tensioning device 214 drives the screw block through the screw rod, and the screw block drives the redirection roller to move, thereby achieving tensioning and adjusting the belt deviation.

[0048] Compared with the traditional linear belt conveyor, the present embodiment is also provided with an oblique belt unit 210, and by presetting the minimum oblique angle, the whole machine can reduce the rotation angle during the deflection process. And compared with the linear belt conveyor, the oblique belt unit 210 in the present technical solution is also provided with a receiving hopper 203, so that when unloading with a truck, the goods can be directly dumped, thereby reducing the use of a feeder and further saving costs.

[0049] In order to further increase the stability of the retractable belt unit 200, a counterweight box 216 is also provided on the lower surface of the oblique frame 211, and a counterweight is added in the counterweight box 216 to prevent the loss of balance and tipping. In particular, the balance of the second transverse belt unit 230 when it is extended is ensured to prevent tipping.

[0050] See also Figure 5 The first transverse belt unit 220 includes a first transverse frame 221, and a second grooved upper roller 222 supporting the belt is arranged on the upper surface of the first transverse frame 221. A plurality of second belt return lower rollers 223 are arranged in the first transverse frame 221. The hollow area between the second grooved upper rollers 222 and the second belt return lower rollers 223 constitutes the accommodating space of the second transverse belt unit 230; a telescopic reducer 224 is arranged on the inner wall of one side of the first transverse frame 221 close to the second transverse belt unit 230, and a gear 225 is assembled on the telescopic reducer 224; a first redirecting roller 226 is arranged at the return starting position of the second belt return lower roller 223, which is used to make the return belt present a reverse Z shape and tension the belt.

[0051] See also Figure 6 The second transverse belt unit 230 includes a second transverse frame 231 , and racks 232 meshing with the gear 225 are arranged on both sides of the second transverse frame 231 . In this embodiment, the racks 232 are arranged on both sides of the bottom of the second transverse frame 231 .

[0052] The upper surface of the second transverse frame 231 is provided with a third grooved upper roller 233 for supporting the belt, and a plurality of third belt return lower rollers 234 are arranged in the second transverse frame 231; a second redirecting roller 235 and a third redirecting roller 236 are respectively arranged at both ends of the second transverse frame 231, and the second redirecting roller 235 is located below the first redirecting roller 226, and each redirecting roller is used to adjust the belt deviation.

[0053] The second transverse frame 231 rotates forward and reversely through the reducer 224, thereby driving the gear 225 and the rack 232 meshing with the gear 225 to extend or retract. When the second transverse frame 231 retracts, the shortening distance of the belt transmission surface is equal to the lengthening distance of the belt return surface. When the second transverse frame 231 is extended, the lengthening distance of the belt transmission surface is equal to the shortening distance of the belt return surface. Therefore, the belt will not be loosened when the belt is retracted. Several sets of redirecting rollers are used to adjust the belt position so that the entire belt is in a continuous tension state.

[0054] The telescopic belt conveyor is also provided with a plurality of balancing rods 201, one ends of which are distributed at the bottom of the oblique belt unit 210 and the bottom of the first transverse belt unit 220, and the other ends of which are gathered on the same balancing support rod 202, which is vertically arranged on the first transverse belt unit 220. The entire balancing rod 201, the belt unit and the balancing support rod form a triangular traction structure, which prevents the frame from being deformed too much to affect its use while also increasing the overall stability.

[0055] The steering unit 300 is fixedly disposed at one end of the walkable chassis 100 , and is rotatably connected to the bottom of the oblique belt unit 210 , so that the oblique belt unit 210 can rotate based on the steering unit 300 .

[0056] The steering unit 300 includes a rotating seat 310 and a steering motor 320 connected to the oblique belt unit 210, and the rotating seat 310 and the steering motor 320 are both assembled at one end of the walkable chassis 100. A steering wheel is provided on the rotating seat 310, and the steering of the steering wheel is adjusted by the steering machine, thereby adjusting the inclination angle of the belt conveyor.

[0057] The lifting unit 400 is fixedly arranged at the other end of the walkable chassis 100 and connected to the bottom of the first transverse belt unit 220. When the lifting unit 400 is extended, the lifting angle and height of the first transverse belt unit 220 are controlled. In this embodiment, the lifting unit adopts a belt conveyor lifting cylinder.

[0058] The utility model also provides a method for using a telescopic belt conveyor for a concrete mixing station, including applying any of the above-mentioned telescopic belt conveyors to a concrete mixing station, adjusting the direction by switching tires in different directions through a wheel direction switching component; adjusting the overall length of the belt through a telescopic belt unit; adjusting the inclination angle of the telescopic belt unit through a steering unit; and supporting the inclination angle through a lifting unit.

[0059] In summary, the present embodiment improves the traditional belt conveyor into a movable telescopic belt conveyor, so that it can be suitable for the construction and use of concrete mixing stations of different sizes. The total length of the entire telescopic belt conveyor is 38 meters, the telescopic length is 11 meters, and the suspension is 26 meters, which reduces the use of the transfer belt conveyor, thereby saving construction costs; by increasing the movable function of the belt conveyor, the distance can be adjusted during the construction of the concrete mixing station, while reducing the crane and labor; the walkable chassis 100 is used to complete the automatic pushing and automatic adjustment of the telescopic belt conveyor, with smooth movement, short time, small vibration and high efficiency; by setting the steering unit 300 and the lifting unit 400, the inclination angle control of the telescopic belt conveyor is completed, so that it can correspond to the construction of concrete mixing stations of different specifications.

[0060] This specification describes examples of embodiments of the utility model, and it is not intended that these embodiments illustrate and describe all possible forms of the utility model. It should be understood that the embodiments in the specification can be implemented in a variety of alternative forms. The drawings do not need to be drawn to scale; some features can be enlarged or reduced to show the details of specific components. The specific structural and functional details disclosed should not be interpreted as limiting, but are merely representative bases for teaching those skilled in the art to implement the utility model in various forms. It should be understood by those skilled in the art that the multiple features illustrated and described with reference to any of the drawings can be combined with the features illustrated in one or more other drawings to form embodiments that are not explicitly described or described. The described combined features provide representative embodiments for typical applications. However, various combinations and variations of features consistent with the teachings of the utility model can be used for specific applications or implementations as needed.

[0061] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A telescopic belt conveyor for a concrete mixing station, characterized in that: The telescopic belt conveyor comprises: A walkable chassis, wherein the two ends of the bottom of the walkable chassis are each provided with a wheel direction switching assembly, and at least one set of the wheel direction switching assemblies is provided with a vehicle driving assembly; when the wheel direction switching assembly is activated, the travel direction of the tire is switched to forward and backward movement or left and right movement; the middle part of the walkable chassis is a chassis bracket, and the two ends of the chassis bracket are connected to the wheel direction switching assembly; A retractable belt unit, the retractable belt unit comprising an oblique belt unit, a first transverse belt unit and a second transverse belt unit that can be retracted into the first transverse belt unit; A steering unit, which is fixedly arranged at one end of the walkable chassis and rotatably connected to the bottom of the oblique belt unit, so that the oblique belt unit can rotate based on the steering unit; A lifting unit is fixedly arranged at the other end of the walkable chassis and connected to the bottom of the first transverse belt unit. When the lifting unit is extended, the lifting angle and height of the first transverse belt unit are controlled.

2. The telescopic belt conveyor for a concrete mixing plant according to claim 1, characterized in that: The wheel direction switching component comprises: A rear axle assembly of an automobile, wherein a front-rear moving driving motor is installed in the middle of the rear axle assembly of the automobile, and tires for front-rear movement are arranged at both ends of the rear axle assembly of the automobile; A vertical support member, the vertical support member is fixedly arranged in the middle of the rear axle assembly of the automobile, and a swing arm oil cylinder is arranged on both sides of the top of the vertical support member, and the swing arm oil cylinder is connected to the swing arm; the swing arm, the two ends of the swing arm are respectively connected to the swing arm oil cylinder and the left / right movable tire; A left / right moving driving motor group transmits power to the left / right moving tire through a sprocket and a transmission chain.

3. The telescopic belt conveyor for a concrete mixing plant according to claim 2, characterized in that: The left and right moving driving motor group comprises: A left-right moving drive motor, wherein the left-right moving drive motor is mounted on the upper surface of the rear axle assembly of the automobile; A plurality of bearing seats, on which sprockets are mounted, the bearing seats being mounted on both ends of the upper surface of the rear axle assembly of the automobile and on the left / right moving tires; A transmission chain is connected in sequence to the left and right moving drive motors and the sprockets to form a loop.

4. The telescopic belt conveyor for a concrete mixing plant according to claim 1, characterized in that: The telescopic belt conveyor is also provided with a plurality of balancing rods, one end of which is distributed at the bottom of the oblique belt unit and the bottom of the first transverse belt unit, and the other ends of the plurality of balancing rods are gathered on the same balancing support rod, which is located directly above the first transverse belt unit.

5. The telescopic belt conveyor for a concrete mixing plant according to claim 1, characterized in that: The oblique belt unit includes an oblique frame, the upper surface of which is provided with a first grooved upper roller supporting the belt; the interior of the oblique frame is provided with an active roller, a belt tensioning device and a plurality of first belt return lower rollers; and a receiving hopper is also provided on the oblique belt unit.

6. The telescopic belt conveyor for a concrete mixing plant according to claim 1, characterized in that: The first transverse belt unit includes a first transverse frame, the upper surface of which is provided with a second grooved upper roller supporting the belt, a plurality of second belt return lower rollers are arranged in the first transverse frame, and the area between the second grooved upper rollers and the second belt return lower rollers constitutes the accommodating space of the second transverse belt unit; a telescopic reducer is arranged on the inner wall of one side of the first transverse frame close to the second transverse belt unit, and the telescopic reducer is equipped with gears; a first redirecting roller is arranged at the return starting position of the second belt return lower roller.

7. The telescopic belt conveyor for a concrete mixing plant according to claim 6, characterized in that: The second transverse belt unit includes a second transverse frame, racks meshing with the gears are arranged on both sides of the second transverse frame, a third grooved upper roller supporting the belt is arranged on the upper surface of the second transverse frame, and a plurality of third belt return lower rollers are arranged in the second transverse frame; a second redirecting roller and a third redirecting roller are respectively arranged at both ends of the second transverse frame, and the second redirecting roller is located below the first redirecting roller.

8. The telescopic belt conveyor for a concrete mixing plant according to claim 5, characterized in that: A counterweight box is also provided on the lower surface of the oblique frame.

9. The telescopic belt conveyor for a concrete mixing plant according to claim 1, characterized in that: The steering unit comprises a rotating seat and a steering motor connected to the oblique belt unit, and the rotating seat and the steering motor are both assembled at one end of the walkable chassis.

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