Discharging device of a concrete mixer truck

Abstract

The present invention relates to the technical field of concrete mixer trucks, and specifically to a discharging device for a concrete mixer truck, which includes a transport vehicle and a concrete mixing tank; the concrete mixing tank is horizontally and rotatably installed on the upper side of the rear of the transport vehicle, and a discharging port is opened at one end of the concrete mixing tank facing the rear of the transport vehicle; between the upper side of the rear of the transport vehicle and the bottom of the concrete mixing tank, a horizontal movement adjusting mechanism and an angle adjusting mechanism are sequentially arranged from bottom to top. The bottom of the horizontal movement adjusting mechanism is installed on the upper side of the transport vehicle, the bottom of the angle adjusting mechanism is installed on the upper side of the horizontal movement adjusting mechanism, and a stirring tank rotating assembly is arranged on the circumferential outside of the concrete mixing tank. A rotary moving pushing mechanism is arranged inside the concrete mixing tank away from the discharging port, and one side of the rotary moving pushing mechanism away from the inside of the concrete mixing tank is rotationally connected to the controlled stirring tank rotating assembly through a transmission member. This device can discharge materials efficiently, has a high kinetic energy utilization rate, and at the same time has strong discharging adjustability.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete mixer trucks, and specifically to a discharging device for a concrete mixer truck. Background Art

[0002] The principle of concrete transportation and discharging mainly involves several key steps and components to ensure that the concrete remains uniformly mixed during transportation and is accurately discharged to the construction site when needed. The following are the main principles and processes of concrete transportation and discharging; The transportation principle of a concrete mixer truck: The mixing system principle: The core part of a concrete mixer truck is the mixing system, including a driving device, a mixing drum, mixing blades, etc. During transportation, the rotation of the mixing blades prevents the concrete from stratifying or solidifying, maintaining the uniformity of the concrete. The transportation system principle: It mainly consists of a chassis, a vehicle body, a hydraulic system, etc., providing power and support, enabling the concrete mixer truck to travel on various road conditions and ensuring the stability of the concrete in the vehicle body. The discharging principle: The inclination angle of the vehicle body is controlled by the hydraulic system, causing the concrete to flow out from the discharging port. The driver selects a suitable discharging position and method according to the actual situation of the construction site to ensure that the concrete smoothly enters the construction area.

[0003] For the discharging of concrete, mainly the angle of the concrete tank is adjusted, with the discharging port tilted downward, and with the cooperation of gravity, the concrete is discharged. Although the above method is simple to operate, there are still the following problems in the actual operation process: First, the concrete tank can only be adjusted for the local inclination angle. When the position of the discharging port is fixed, the overall position of the concrete tank cannot be adjusted according to the requirements of the discharging position. Although an external structure can be used for extension and reception, the operation difficulty is high and the extension distance is limited. Second, when discharging only by using gravity in cooperation with the inclination of the concrete tank, there is local concrete adhering to the tank, which is difficult to clean and output fully. Finally, when controlling the rotation operation of the concrete tank, the utilization rate of the kinetic energy conversion during its rotation is insufficient, easily causing waste of resources.

[0004] Therefore, in view of the above existing problems, the present technical solution proposes a discharging device for a concrete mixer truck. Summary of the Invention

[0005] The purpose of the present invention is to provide a discharging device for a concrete mixer truck to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A discharging device for a concrete mixing transport vehicle, comprising a transport vehicle and a concrete mixing tank; the concrete mixing tank is horizontally and rotatably installed on the upper side of the rear of the transport vehicle, and a discharging port is opened at one end of the concrete mixing tank facing the rear of the transport vehicle. While the transport vehicle transports and transfers the concrete mixing tank, the concrete mixing tank is in a rotating state.

[0007] Between the upper side of the rear of the transport vehicle and the bottom of the concrete mixing tank, a transverse movement adjusting mechanism and an angle adjusting mechanism are sequentially arranged from bottom to top. The bottom of the transverse movement adjusting mechanism is installed on the upper side of the transport vehicle, and is used to drive the angle adjusting mechanism and the concrete mixing tank above the angle adjusting mechanism to laterally transfer along the length direction of the transport vehicle, thereby adjusting the discharging position of the discharging port. The bottom of the angle adjusting mechanism is installed on the upper side of the transverse movement adjusting mechanism, and is used to adjust the inclination angle of the discharging port at the rear of the concrete mixing tank, so that it inclines downward to cooperate with gravity to quickly discharge the concrete. That is, under the cooperation of the transverse movement adjusting mechanism and the angle adjusting mechanism, the discharging extension distance of the discharging port is expanded, so as to improve the applicable range of concrete discharging.

[0008] The mixing tank rotating assembly is arranged outside the circumference of the concrete mixing tank and is used to drive the concrete mixing tank to continuously rotate, so as to keep the concrete inside the concrete mixing tank in a flowing state. Inside the concrete mixing tank, away from the discharging port, a rotary moving pushing mechanism is arranged. One side of the rotary moving pushing mechanism away from the inside of the concrete mixing tank is rotationally connected to the controlled mixing tank rotating assembly through a transmission part. That is, by controlling the transmission part, the mixing tank rotating assembly and the rotary moving pushing mechanism are selectively rotationally connected. That is, while controlling the continuous rotation of the concrete mixing tank, the rotary moving pushing mechanism is driven to rotate synchronously. The two cooperate with each other, and together with the inclined gravity of the concrete mixing tank, the concrete inside the transport vehicle is quickly and efficiently discharged.

[0009] Compared with the prior art, the beneficial effects of the present invention are: By arranging a rotary moving pushing mechanism inside the concrete mixing tank to push the concrete inside the concrete mixing tank towards the discharging port, and cooperating with the rotation and angle adjustment of the concrete mixing tank, the concrete inside the concrete mixing tank can be quickly and fully discharged outside;

[0010] By rotationally connecting the rotary moving pushing mechanism with the rotation power of the concrete mixing tank, the function of driving a majority of mechanical rotations with a small amount of kinetic energy is realized, which improves the operation efficiency of the device to a certain extent and realizes an efficient and energy-saving operation mode;

[0011] By arranging a transverse movement adjusting mechanism to adjust the lateral position of the concrete mixing tank and expand the discharging range of the concrete mixing tank, the practicability of the device is improved. Description of the Drawings

[0012] Figure 1 It is a schematic three - dimensional structure diagram of a discharging device of a concrete mixer truck.

[0013] Figure 2 It is a schematic front - view structure diagram of a discharging device of a concrete mixer truck.

[0014] Figure 3 It is a schematic top - view structure diagram of a discharging device of a concrete mixer truck.

[0015] Figure 4 It is a schematic side - view structure diagram of a discharging device of a concrete mixer truck.

[0016] Figure 5 It is a schematic diagram of a partially - cut - open internal structure of a concrete mixing tank in a discharging device of a concrete mixer truck.

[0017] Figure 6 It is Figure 1 An enlarged structure diagram of A in

[0018] Figure 7 It is Figure 1 An enlarged structure diagram of B in

[0019] Figure 8 It is Figure 1 An enlarged structure diagram of C in

[0020] Figure 9 It is Figure 2 An enlarged structure diagram of D in

[0021] Figure 10 It is Figure 2 An enlarged structure diagram of E in

[0022] Figure 11 It is Figure 5 An enlarged structure diagram of F in

[0023] Figure 12 It is a schematic internal structure diagram of a buffer base in a discharging device of a concrete mixer truck.

[0024] Wherein: the transport vehicle 10, the concrete mixing tank 11, the discharge port 12, the mobile rotary component silo pipe 13, the transverse movement base plate 14, the angle adjustment base 15, the transverse movement adjustment mechanism 16, the angle adjustment mechanism 17, the mixing tank rotary component 18, the triangular support plate 19, the swing rod 20, the connecting shaft 21, the first servo motor 22, the first drive telescopic rod 23, the first drive sleeve 24, the positioning key 25, the moving rod 26, the fixed block 27, the U-shaped support swing rod 28, the first connecting rod 29, the adjusting screw 30, the threaded hole block 31, the rotating support frame 32, the hydraulic cylinder 33, the cylinder groove 34, the swing shaft 35, the external gear ring 36, the driving gear 37, the second servo motor 38, the positioning sliding cabinet 39, the positioning slide rail base 40, the output shaft 41, the moving sleeve 42, the rotation limiting rod 43, the pushing block 44, the transmission belt 45, the guide rod 46, the second lead screw 47, the nut 48, the U-shaped connecting rod 49, the inner transmission shaft 50, the partition plate 51, the pushing block 52, the limiting slider 53, the limiting chute 54, the collar 55, the L-shaped connecting rod 56, the internal gear ring 57, the side gear 58, the central gear 59, the swing connecting rod 60, the mixing shaft 61, the spiral feeding blade 62, the V-shaped pushing plate 63, the buffer base 64, the buffer rod 65, the buffer cylinder 66, the limiting block 67, the buffer spring 68, the second drive sleeve 69, the second drive telescopic rod 70. Detailed implementation mode

[0025] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0029] Please refer to Figures 1 - 4 , a discharging device of a concrete mixer truck, comprising a transport vehicle 10 and a concrete mixing tank 11; the concrete mixing tank 11 is horizontally and rotatably installed on the upper side of the tail of the transport vehicle 10, and an outlet 12 is provided at one end of the concrete mixing tank 11 facing the tail of the transport vehicle 10. While the transport vehicle 10 transports and transfers the concrete mixing tank 11, the concrete mixing tank 11 is in a rotating state.

[0030] Between the upper side of the tail of the transport vehicle 10 and the bottom of the concrete mixing tank 11, a transverse movement adjusting mechanism 16 and an angle adjusting mechanism 17 are sequentially arranged from bottom to top. The bottom of the transverse movement adjusting mechanism 16 is installed on the upper side of the transport vehicle 10 and is used to drive the angle adjusting mechanism 17 and the concrete mixing tank 11 above the angle adjusting mechanism 17 to laterally transfer along the length direction of the transport vehicle 10, thereby adjusting the discharging position of the outlet 12. The bottom of the angle adjusting mechanism 17 is installed on the upper side of the transverse movement adjusting mechanism 16 and is used to adjust the inclination angle of the outlet 12 at the tail of the concrete mixing tank 11 to make it inclined downward to cooperate with gravity to quickly discharge the concrete. That is, under the cooperation of the transverse movement adjusting mechanism 16 and the angle adjusting mechanism 17, the discharging extension distance of the outlet 12 is expanded, so as to improve the applicable range of concrete discharging.

[0031] A mixing tank rotating assembly 18 is arranged on the circumferential outer part of the concrete mixing tank 11 and is used to drive the concrete mixing tank 11 to continuously rotate and operate, so as to keep the concrete inside the concrete mixing tank 11 in a flowing state. A rotary moving pushing mechanism is arranged inside the concrete mixing tank 11 away from the outlet 12. One side of the rotary moving pushing mechanism away from the inside of the concrete mixing tank 11 is rotationally connected to the controlled mixing tank rotating assembly 18 through a transmission member. That is, by controlling the transmission member, the mixing tank rotating assembly 18 and the rotary moving pushing mechanism are selectively rotationally connected. That is, while controlling the continuous rotation of the concrete mixing tank 11, the rotary moving pushing mechanism is driven to rotate synchronously. The two cooperate with each other, and together with the inclined gravity of the concrete mixing tank 11, the concrete inside the transport vehicle 10 can be quickly and efficiently discharged.

[0032] In an embodiment of the present invention, the transport vehicle 10 is configured as a trailer type vehicle, and the concrete mixing tank 11 is arranged on the upper side of the trailer at the rear of the transport vehicle 10. The overall structure of the concrete mixing tank 11 is similar to that of the mixing tanks on existing concrete transport vehicles. The difference is that the end near the front of the transport vehicle 10 is also provided with a structure similar to the discharge port 12 end, and the rotary moving pushing mechanism can smoothly move inside the concrete mixing tank 11, providing sufficient lateral movement space for it;

[0033] An inlet port (not shown in the figure) is provided on the outer circumferential wall of the concrete mixing tank 11, and the concrete to be transported and transferred is input into the concrete mixing tank 11 through the inlet port for storage;

[0034] Refer to Figure 8 , the mixing tank rotating assembly 18 includes a positioning sliding cabinet 39 and an external gear ring 36 sleeved on the front and rear outer circumferential walls of the concrete mixing tank 11. The bottom side of the positioning sliding cabinet 39 is slidably connected to a positioning slide rail base 40. The bottom of the external gear ring 36 is meshed with a driving gear 37 connected. One end of the driving gear 37 is connected to a servo motor two 38. The servo motor two 38 and the bottom of the positioning slide rail base 40 are jointly connected to a group of angle adjustment bases 15. When the servo motor two 38 is started to drive the driving gear 37 to rotate, the driving gear 37 is then used to drive the external gear ring 36 to rotate. At the same time, the sliding connection between the positioning sliding cabinet 39 and the positioning slide rail base 40 is utilized to keep the concrete mixing tank 11 rotating stably;

[0035] Among them, the positioning sliding cabinet 39 and the positioning slide rail base 40 are in a limited sliding connection, that is, the positioning sliding cabinet 39 and the positioning slide rail base 40 are only in a sliding connection state in the circumferential direction, and are in a limited connection in other directions. The external gear ring 36 and the servo motor two 38 are in a limited meshing connection. There are rotating limit slide rails and limit sliders on both sides of the meshing part of the external gear ring 36 and the servo motor two 38, which are used to keep the two in close contact and meshing. That is, when the angle of the concrete mixing tank 11 is adjusted, it still remains stable. For the limiting structures between the positioning sliding cabinet 39 and the positioning slide rail base 40, and between the external gear ring 36 and the servo motor two 38, they are all conventional structures and will not be elaborated here.

[0036] In an example of the present invention, refer to Figure 1 , Figure 2 , Figure 6 , Figure 7, the transverse movement adjusting mechanism 16 includes a transverse movement base plate 14 parallel to the upper surface of the tail of the transport vehicle 10. Triangular support plates 19 are respectively installed on both sides of the bottom of the transverse movement base plate 14 and both sides of the top of the transport vehicle 10. A connecting shaft 21 is rotatably installed between the triangular support plates 19 on the same side in the left-right direction. A swing rod 20 is rotatably connected between the ends of the connecting shafts 21 on the same side in the up-down direction. The transverse movement base plate 14 and the upper side of the transport vehicle 10 are transversely swing-connected by using the swing rod 20. At the same time, a set of connecting rods one 29 are rotatably sleeved on the upper connecting shaft 21 close to the front of the transport vehicle 10. The end of the connecting rod one 29 far from the front of the transport vehicle 10 is fixedly connected with a U-shaped support swing rod 28. The bottom end of the U-shaped support swing rod 28 is rotatably connected with a fixed block 27 through a rotating shaft. A moving rod 26 is installed inside the fixed block 27. One end of the moving rod 26 facing the front of the transport vehicle 10 is connected with an adjusting screw 30. A threaded hole block 31 fixed on the upper side of the transport vehicle 10 is threadedly connected to the adjusting screw 30. The other end of the moving rod 26 is connected with a transmission sleeve one 24. A transmission telescopic rod one 23 is telescopically connected inside the transmission sleeve one 24. A positioning key 25 is installed on the transmission telescopic rod one 23. A positioning slide rail is opened on the inner wall of the transmission sleeve one 24 corresponding to the positioning key 25. The positioning key 25 is axially slid in the positioning slide rail. The end of the transmission telescopic rod one 23 far from the transmission sleeve one 24 is connected with a servo motor one 22. The servo motor one 22 is started to operate to drive the transmission telescopic rod one 23 to rotate. Then, under the rotation limit of the positioning key 25 and the positioning slide rail, the transmission sleeve one 24 is synchronously driven to rotate. Thus, the adjusting screw 30 is controlled to move threadedly inside the threaded hole block 31. Thus, the transverse movement of the moving rod 26 is controlled. Furthermore, the fixed block 27 is driven to move transversely. Then, under the swing connection of the U-shaped support swing rod 28 and the fixed block 27, the connecting rod one 29 is pushed to control the lifting and transverse swing of the connecting shaft 21 at its end. Thus, the transverse position of the transverse movement base plate 14 is adjusted. Furthermore, the transverse positions of the angle adjusting mechanism 17 on the upper side of the transverse movement base plate 14 and the concrete mixing tank 11 are adjusted;

[0037] As a preferred embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 4 , Figure 8, the angle adjustment mechanism 17 includes rotating support frames 32 installed on both sides of the bottom of the angle adjustment base 15 near one side of the discharge port 12. A support column is rotatably connected to the bottom of the rotating support frame 32, and the bottom of the support column is fixed on the transverse movement substrate 14. A set of hydraulic rods is rotatably connected to the middle of the bottom of the angle adjustment base 15 near the head of the transport vehicle 10. The bottom of the hydraulic rod is connected to a hydraulic cylinder 33. A cylinder groove 34 is formed on the transverse movement substrate 14 corresponding to the bottom end of the hydraulic cylinder 33. The bottom of the hydraulic cylinder 33 placed inside the cylinder groove 34 is rotatably connected to the cylinder groove 34 through a swing shaft 35. That is, by controlling the lifting of the hydraulic cylinder 33 and then rotatably connecting its two ends between the bottom of the angle adjustment base 15 and the inner wall of the cylinder groove 34 respectively, the angle adjustment base 15 can be smoothly controlled to swing along the axis of the rotating support frame 32, so as to adjust the angle of the concrete mixing tank 11 on the upper side of the angle adjustment base 15.

[0038] As a preferred embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 5 , Figure 9 , Figure 10 , Figure 11 , the rotary moving pushing mechanism includes a moving rotary component silo pipe 13 connected to one end of the concrete mixing tank 11 near the head of the transport vehicle 10. A partition plate 51 is installed at the connection between the moving rotary component silo pipe 13 and the concrete mixing tank 11. The partition plate 51 isolates the inside of the moving rotary component silo pipe 13 from the inside of the concrete mixing tank 11, that is, prevents the concrete inside the concrete mixing tank 11 from transferring into the inside of the moving rotary component silo pipe 13;

[0039] The moving rotary component includes a set of internal gear rings 57 rotatably arranged inside the concrete mixing tank 11 on one side of the partition plate 51. A set of central gears 59 is rotatably arranged in the middle of the internal gear rings 57. Two sets of side gears 58 are respectively meshed between the two sides of the central gear 59 and the inside of the internal gear rings 57. Rotary shafts are installed at the centers of the side gears 58 and the central gear 59. A swing connecting rod 60 is installed between the rotary shafts on the same side of the side gears 58 and the central gear 59. Among them, one end of the rotary shaft on the central gear 59 facing the inside of the concrete mixing tank 11 is connected to a stirring shaft 61, and a spiral pushing blade 62 is installed on the stirring shaft 61. The end of the rotary shaft on the side opposite to the stirring shaft 61 is connected to a moving rotary component arranged inside the moving rotary component silo pipe 13. The moving rotary component drives the rotary shaft at the center of the central gear 59 to rotate, and then drives the stirring shaft 61 to drive the spiral pushing blade 62 to rotate, so as to stir and push the concrete inside the concrete mixing tank 11. At the same time, when the central gear 59 rotates, by using the meshing between the two side gears 58 and the internal gear rings 57 on both sides, the internal gear rings 57 are synchronously driven to rotate in the opposite direction, that is, the internal gear rings 57 and the spiral pushing blades 62 rotate in the opposite direction;

[0040] One end of the rotating shaft on the central gear 59 near one side of the partition plate 51 is connected with an inner transmission shaft 50. A collar 55 is rotatably sleeved on the inner transmission shaft 50. Multiple groups of L-shaped connecting rods 56 are evenly installed on the circumferential outer wall of the collar 55 and the side wall of the internal gear ring 57. One side of the collar 55 far away from the internal gear ring 57 is axially limited and connected with a pushing block 52 sleeved on the inner transmission shaft 50. The pushing block 52 rotates relative to the inner transmission shaft 50 and is stationary axially. A circumferential limiting chute 54 is opened on the circumferential outer wall of the pushing block 52. Two limiting sliders 53 are symmetrically and slidably connected to the upper and lower sides of the limiting chute 54. One side of the limiting slider 53 facing the inside of the moving and rotating component storage tube 13 is connected with a U-shaped connecting rod 49. The U-shaped connecting rod 49 movably passes through the partition plate 51. At the same time, the inner transmission shaft 50 movably passes through the center of the partition plate 51 and extends to the inside of the moving and rotating component storage tube 13. One end of the inner transmission shaft 50 placed inside the moving and rotating component storage tube 13 is connected with a second transmission telescopic rod 70. The end of the second transmission telescopic rod 70 is telescopically connected with a second transmission sleeve 69. A positioning key is also installed on the circumferential outer wall of the second transmission telescopic rod 70. A positioning slide rail is opened inside the second transmission sleeve 69 corresponding to the positioning key. The positioning key is axially moved inside the positioning slide rail. One end of the second transmission sleeve 69 is connected with a second lead screw 47. A nut 48 is threadedly connected to the second lead screw 47. A guiding device for restricting its self-rotation is provided on the nut 48. Both ends of the U-shaped connecting rod 49 are respectively and fixedly connected to the nut 48. When the second lead screw 47 rotates, under the connection of the second transmission sleeve 69 and the second transmission telescopic rod 70, the inner transmission shaft 50 is driven to rotate, and then the rotating shaft on the central gear 59 is driven to rotate, and then the stirring shaft 61 and the spiral feeding blade 62 at the end of the central gear 59 are driven to rotate. At the same time, under the meshing of the two side gears 58, the internal gear ring 57 is driven to rotate, thereby controlling the rotation of the V-shaped push plate 63; at the same time, when the second lead screw 47 rotates, the nut 48 is driven to reciprocally move along the second lead screw 47, and then under the connection of the two U-shaped connecting rods 49, the pushing block 52 and the collar 55 are axially moved, and then under the connection of the L-shaped connecting rods 56, the internal gear ring 57 is driven to move horizontally. At the same time, the second transmission telescopic rod 70 extends and contracts inside the second transmission sleeve 69, thereby keeping the central gear 59 and the internal gear ring 57 in synchronous axial movement, so as to drive the spiral feeding blade 62 and the internal gear ring 57 to move towards the discharge port 12, and push the concrete inside the concrete mixing tank 11 towards the discharge port 12 for transfer and discharge;

[0041] A guide rod 46 is installed at the outer end of the second lead screw 47. The guide rod 46 is rotatably connected downward to a transmission member. The bottom of the transmission member is rotatably connected to the output shaft of the second servo motor 38. The transmission member includes an output shaft 41 connected to the end of the driving gear 37. A rotation limiting rod 43 is arranged at intervals at the end of the output shaft 41. A transmission connecting rod is connected to the end of the rotation limiting rod 43. The transmission connecting rod is rotatably connected upward to the guide rod 46 through a transmission belt 45. A moving sleeve 42 is slidably sleeved between the output shaft 41 and the rotation limiting rod 43. A positioning slide rail is provided on the inner wall of the moving sleeve 42. A positioning key is installed on the outer wall of the rotation limiting rod 43. By pushing the moving sleeve 42 to move axially, it is controlled whether the internal positioning slide rail is slidably connected to the rotation limiting rod 43, and thus whether the output shaft 41 is rotatably connected to the transmission connecting rod, so as to control the subsequent rotating material pushing process inside the concrete mixing tank 11, that is, to increase the controllability of the discharging drive. At the same time, by borrowing the rotating operation power of the concrete mixing tank 11, to a certain extent, the energy consumption is reduced, and at the same time, the conversion utilization rate of kinetic energy is improved;

[0042] A plurality of push blocks 44 are installed at equal intervals on the outer circumferential wall of the moving sleeve 42. The push blocks 44 are used to facilitate the axial movement of the moving sleeve 42. When pushing the moving sleeve 42 to move, for safety reasons, the second servo motor 38 can be stopped briefly;

[0043] A plurality of groups of buffer bases 64 are installed at equal intervals in a ring on the outer circumferential wall of the internal gear ring 57. A V-shaped push plate 63 is installed at the end of the buffer base 64. When the internal gear ring 57 rotates, it drives the V-shaped push plate 63 to stir the concrete around it, and when it moves horizontally, it controls the buffer base 64 to push the concrete around it and transfer it towards the discharge port 12.

[0044] As a preferred embodiment of the present invention, refer to Figure 12 , the buffer base 64 includes a buffer cylinder 66 fixed on the outer wall of the internal gear ring 57. A limiting block 67 is elastically connected inside the buffer cylinder 66 through a buffer spring 68. A buffer rod 65 is fixedly installed at the top of the limiting block 67. The outer part of the top of the buffer rod 65 is fixedly connected to the V-shaped push plate 63. The top end of the V-shaped push plate 63 is provided with an arc-shaped rubber layer, which is used to safely and stably contact when contacting the wall of the concrete mixing tank 11, and then push the concrete on the tank wall to fall and transfer;

[0045] The V-shaped open sides of the V-shaped push plates 63 are distributed towards the side of the discharge port 12, which is convenient for pushing the concrete inside the concrete mixing tank 11 towards the discharge port 12, and when moving back, the moving resistance of the concrete to it can be reduced.

[0046] The working principle of the present invention is as follows: At the idle position of the device, all the above-mentioned driving components, which refer to power components, electrical components and the adapted power supply, are connected by wires, and the electrical connection is completed according to the sequence of the working order among the electrical components. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of the electrical control will be made. During operation, according to the position of the concrete discharge, the servo motor 1 22 is first started to drive the transmission telescopic rod 1 23 to rotate, and then the adjusting screw 30 is driven to move horizontally. Under the swing connection of the U-shaped support swing rod 28 and the fixed block 27, the connecting shaft 21 on the upper side near the head of the transport vehicle 10 is controlled to swing horizontally in a lifting manner, and then the discharge port 12 is transferred towards the tail of the transport vehicle 10. Then, during unloading, the push block 44 is first pushed to sleeved and rotatably connect the moving sleeve 42 and the rotation-limiting rod 43, and then the servo motor 2 38 is started to drive the rotation-limiting rod 43 to rotate. Then, driven by the transmission belt 45, the nut 48 is driven to rotate. Then, under the connection of structures such as the inner transmission shaft 50, the side gear 58, and the central gear 59, the inner gear ring 57 and the spiral pushing blade 62 are driven to rotate in opposite directions, and at the same time, the inner gear ring 57 and the buffer base 64 are pushed to move cyclically towards the discharge port 12, quickly pushing the concrete in the concrete mixing tank 11 out along the discharge port 12. At the same time, during unloading, by starting the swing shaft 35, the inclination angle of the concrete mixing tank 11 is adjusted, and with the cooperation of gravity, the discharge of the concrete is further accelerated.

[0047] The above describes the preferred embodiments of the patent in detail, but the patent is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in the art, various changes can be made without departing from the gist of the patent.

Claims

1. A discharging device of a concrete mixer truck, characterized in that It includes a transport vehicle and a concrete mixing tank; the concrete mixing tank is horizontally and rotatably installed on the upper side of the tail of the transport vehicle, and a discharge port is provided at one end of the concrete mixing tank facing the tail of the transport vehicle; A horizontal movement adjusting mechanism and an angle adjusting mechanism are sequentially arranged from bottom to top between the upper side of the tail of the transport vehicle and the bottom of the concrete mixing tank. The bottom of the horizontal movement adjusting mechanism is installed on the upper side of the transport vehicle and is used to drive the angle adjusting mechanism and the concrete mixing tank on the upper side of the angle adjusting mechanism to laterally transfer along the length direction of the transport vehicle. The bottom of the angle adjusting mechanism is installed on the upper side of the horizontal movement adjusting mechanism and is used to adjust the inclination angle of the discharge port at the tail of the concrete mixing tank; A mixing tank rotating assembly is arranged on the circumferential outer part of the concrete mixing tank and is used to drive the concrete mixing tank to continuously rotate. A rotary moving pushing mechanism is arranged inside the concrete mixing tank far from the discharge port. One side of the rotary moving pushing mechanism far from the inside of the concrete mixing tank is rotationally connected to the controlled mixing tank rotating assembly through a transmission member; The rotary moving pushing mechanism includes a moving rotary assembly bin pipe communicated with the end of the concrete mixing tank close to the head of the transport vehicle. A partition plate is installed at the communication part between the moving rotary assembly bin pipe and the concrete mixing tank, and the partition plate isolates the moving rotary assembly bin pipe from the inside of the concrete mixing tank; A group of internal gear rings are rotatably arranged inside the concrete mixing tank on one side of the partition plate. A group of central gears are rotatably arranged in the middle of the internal gear rings. Two groups of side gears are respectively meshed between the two sides of the central gear and the inside of the internal gear rings. Rotary shafts are installed at the centers of the side gears and the central gear. A swing connecting rod is installed between the rotary shafts on the same side of the side gears and the central gear. One end of the rotary shaft on the central gear facing the inside of the concrete mixing tank is connected to a mixing shaft, and spiral pushing blades are installed on the mixing shaft. The end of the rotary shaft on the side opposite to the mixing shaft is connected to a moving rotary assembly arranged inside the moving rotary assembly bin pipe; The mobile rotation assembly includes an inner transmission shaft connected to the end of a rotating shaft on a central gear near one side of the partition plate. A collar is rotatably sleeved on the inner transmission shaft. A plurality of L-shaped connecting rods are evenly installed on the circumferential outer wall of the collar and the side wall of the internal gear ring. On the side of the collar away from the internal gear ring, there is an axially limited connection with a pushing block sleeved on the inner transmission shaft. The pushing block rotates relative to the inner transmission shaft and is static in the axial direction. A circumferential limiting chute is provided on the circumferential outer wall of the pushing block. Two limiting sliders are symmetrically and slidably connected to the upper and lower sides of the limiting chute. One side of the limiting slider facing the inside of the storage tube of the mobile rotation assembly is connected with a U-shaped connecting rod. The U-shaped connecting rod movably passes through the partition plate. The inner transmission shaft movably passes through the center of the partition plate and extends to the inside of the storage tube of the mobile rotation assembly. The end of the inner transmission shaft placed inside the storage tube of the mobile rotation assembly is connected with a second transmission telescopic rod. The end of the second transmission telescopic rod is telescopically connected with a second transmission sleeve. A positioning key is installed on the circumferential outer wall of the second transmission telescopic rod. A positioning slide rail is provided inside the second transmission sleeve corresponding to the positioning key. The positioning key is axially moved inside the positioning slide rail. One end of the second transmission sleeve is connected with a second lead screw. A nut is threadedly connected to the second lead screw. A guiding device for restricting its self-rotation is provided on the nut. The two ends of the U-shaped connecting rod are respectively fixedly connected to the nut.

2. The discharging device of a concrete mixer truck according to claim 1, characterized in that, A guide rod is installed at the outer end of the second lead screw. The guide rod is rotatably connected downward with a transmission member. The bottom of the transmission member is rotatably connected to the output shaft of the second servo motor. The transmission member includes an output shaft connected to the end of the driving tooth. A rotation limiting rod is spaced at the end of the output shaft. The end of the rotation limiting rod is connected with a transmission connecting rod. The transmission connecting rod is rotatably connected upward to the guide rod through a transmission belt. A moving sleeve is slidably sleeved between the output shaft and the rotation limiting rod. A positioning slide rail is provided on the inner wall of the moving sleeve. A positioning key is installed on the outer wall of the rotation limiting rod.

3. The discharging device of a concrete mixer truck according to claim 2, characterized in that, The concrete mixer rotation assembly includes a positioning slide cabinet and an external gear ring sleeved on the front and rear circumferential outer walls of the concrete mixer. The bottom side of the positioning slide cabinet is slidably connected to a positioning slide rail base. The bottom of the external gear ring is meshed with a driving tooth connected. One end of the driving tooth is connected with a second servo motor. The second servo motor and the bottom of the positioning slide rail base are jointly connected with a set of angle adjustment bases.

4. The discharging device of a concrete mixer truck according to claim 3, characterized in that, The angle adjustment mechanism includes rotating support frames installed on both sides of the bottom of the angle adjustment base near the discharge port. The bottom of the rotating support frame is rotatably connected with a support column. The bottom of the support column is fixed on the transverse movement substrate. A set of hydraulic rods is rotatably connected to the middle part of the bottom of the angle adjustment base near the front of the transport vehicle. The bottom of the hydraulic rod is connected with a hydraulic cylinder. A cylinder groove is provided on the transverse movement substrate corresponding to the bottom end of the hydraulic cylinder. The bottom of the hydraulic cylinder placed inside the cylinder groove is rotatably connected in the cylinder groove through a swing shaft.

5. The discharging device of a concrete mixer truck according to claim 4, characterized in that A plurality of pushing blocks are evenly installed at equal intervals on the circumferential outer wall of the moving sleeve.

6. The discharging device of a concrete mixer truck according to claim 5, characterized in that, A plurality of groups of buffer bases are annularly and equally spaced on the circumferential outer wall of the internal gear ring. A V-shaped pushing plate is installed at the end of the buffer base.

7. The discharging device of a concrete mixer truck according to claim 6, characterized in that, The buffer base includes a buffer cylinder fixed on the outer wall of the internal gear ring. A limiting block is elastically connected inside the buffer cylinder through a buffer spring. The top of the limiting block is fixedly installed with a buffer rod. The outside of the top of the buffer rod is fixedly connected to the V-shaped pushing plate. The top end of the V-shaped pushing plate is provided with an arc-shaped rubber layer.

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