Full-hydraulic planetary stirring device based on feeding pump truck

Abstract

The utility model relates to the technical field of concrete pump trucks, and discloses a full-hydraulic planetary stirring device based on a feeding pump truck, a guide rail is fixedly mounted on the surface of a truck plate of the concrete pump truck, a stirring device is mounted on the guide rail in a sliding manner, and a push-pull oil cylinder is movably mounted between the stirring device and the truck plate of the concrete pump truck; when the hydraulic motor P2 rotates, the hydraulic motor P2 also drives a small stirring cross arm P2, a small vertical rod and an inner stirring scraper blade to rotate, and concrete in the stirring barrel is also stirred by utilizing the inner stirring scraper blade; when the hydraulic rod is used for upwards pulling and opening the baffle, the outer stirring scraper can scrape concrete in the stirring barrel and discharge the concrete into the feeding hopper of the pump truck, then the concrete pump truck conveys the concrete to a building, in the process, concrete on-site preparation-stirring-pumping integrated operation is achieved, the cutting feeling of the construction process is reduced, and the construction efficiency is improved. And the transition efficiency between the mixing plant and the pump truck is reduced.

Description

Technical Field

[0001] This utility model relates to the field of concrete pump truck technology, specifically a fully hydraulic planetary mixing device based on a feeding pump truck. Background Technology

[0002] A concrete pump truck is a machine that uses pressure to continuously transport concrete along a pipeline. It consists of a pump body and a delivery pipe. Based on its structure, it is classified into piston type, extrusion type, and hydraulic diaphragm type. The pump body is mounted on a truck chassis, and equipped with a telescopic or articulated placing boom, thus forming a pump truck.

[0003] Conventional concrete pump trucks have flexible delivery pipes that take up space, requiring external batching plants to mix the concrete before it is transported to the pump truck location by delivery trucks. It can be seen that the batching plant and the pump truck are set up separately, resulting in a large space occupation, low efficiency in transferring between the batching plant and the pump truck, and a significant sense of disconnect in the construction process, which reduces work efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a fully hydraulic planetary mixer based on a concrete pump truck, which integrates on-site concrete preparation, mixing, and pumping operations, thus solving the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned goal of integrated on-site concrete preparation, mixing, and pumping operations, this utility model provides the following technical solution: a fully hydraulic planetary mixing device based on a concrete pump truck, comprising a concrete pump truck, wherein a plunger pump is built into the concrete pump truck, a pump truck feed hopper is movably installed at the rear end of the concrete pump truck, a guide rail is fixedly installed on the upper surface of the concrete pump truck's platform, a mixing device is slidably installed on the guide rail, and a push-pull cylinder is movably installed between the mixing device and the concrete pump truck's platform.

[0008] The stirring device includes a stirring tank, a top cover plate is fixedly installed on one side of the top of the stirring tank, a hydraulic control integrated valve block is fixedly installed on one side of the top of the top cover plate, a motor mounting base is fixedly installed at the top center of the top of the top cover plate, a P1 hydraulic motor is fixedly installed inside the motor mounting base, a drive gear is fixedly installed at the output end of the P1 hydraulic motor, a transmission gear meshes with the drive gear, a middle column is fixedly installed at the bottom of the transmission gear, an eccentric mounting shell is installed on the outer side of the lower part of the middle column, and a P2 hydraulic motor is fixedly installed inside the mounting shell.

[0009] Preferably, a hydraulic rod is hinged to the side of the mixing tank, and a baffle is fixedly installed at the output end of the hydraulic rod, with the baffle slidably connected to the outer wall of the mixing tank.

[0010] Preferably, reinforcing plates are fixedly installed on the side walls and bottom walls of the mixing tank, a C-shaped water inlet pipe is fixedly installed at the top opening of the mixing tank, a feeding hopper is fixedly installed on one side of the top of the mixing tank, a cover plate is hinged to the top of the feeding hopper, and rollers corresponding to the guide rail are hinged to the bottom of the mixing tank.

[0011] Preferably, the transmission gear is rotatably mounted to the inner bottom wall of the motor mounting base via a slewing bearing. The transmission gear is equipped with a hydraulic rotary joint, the top of which is fixed to the inner top wall of the motor mounting base. The hydraulic rotary joint is connected to the P2 hydraulic motor via a hydraulic pipeline.

[0012] Preferably, a P2 small stirring arm is fixedly installed at the output end of the P2 hydraulic motor, and small vertical rods are fixedly installed at both ends of the P2 small stirring arm. A detachable inner stirring scraper is installed at the bottom of the small vertical rods.

[0013] Preferably, a large stirring arm (P1) is fixedly installed on the outer side of the intermediate column, a large vertical rod is fixedly installed at the tail end of the large stirring arm (P1), and an outer stirring scraper is detachably installed at the bottom of the large vertical rod.

[0014] Preferably, the input end of the hydraulic control integrated valve block is connected to the discharge end of the piston pump, one output end of the hydraulic control integrated valve block is connected to the input end of the push-pull cylinder, two output ends of the hydraulic control integrated valve block are connected to the input end of the hydraulic rod, three output ends of the hydraulic control integrated valve block are connected to the input end of the P1 hydraulic motor, and four output ends of the hydraulic control integrated valve block are connected to the input end of the P2 hydraulic motor.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a fully hydraulic planetary mixer based on a feed pump truck, which has the following beneficial effects:

[0017] This fully hydraulic planetary mixer based on a concrete pump truck uses a P1 hydraulic motor to drive a drive gear, which in turn drives a transmission gear. The transmission gear synchronously rotates the intermediate column, mounting housing, and P2 hydraulic motor. The outer side of the intermediate column is equipped with a P1 large mixing arm, a large vertical rod, and an outer mixing scraper, which then mixes the concrete along the edge of the mixing drum. Simultaneously, the P2 hydraulic motor also drives a P2 small mixing arm, a small vertical rod, and an inner mixing scraper, which also mixes the concrete in the mixing drum. When the baffle is opened using a hydraulic rod, the outer mixing scraper scrapes the concrete from the mixing drum into the pump truck's hopper. The concrete pump truck then delivers the concrete to the building. This process integrates on-site concrete preparation, mixing, and pumping, reducing the fragmentation of the construction process and improving the efficiency of transferring between the mixing plant and the pump truck. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the stirring device of this utility model;

[0020] Figure 3 This is a side sectional view of the stirring device of this utility model;

[0021] Figure 4 This is a top view of the stirring device of this utility model.

[0022] In the diagram: 1. Concrete pump truck; 2. Plunger pump; 3. Pump truck feed hopper; 4. Guide rail; 5. Mixing device; 6. Push-pull cylinder; 7. Mixing drum; 8. Reinforcing plate; 9. Top cover plate; 10. C-type water inlet pipe; 11. Feed hopper; 12. Hydraulic rod; 13. Baffle; 14. Roller; 15. Hydraulic control integrated valve block; 16. Motor mounting base; 17. P1 hydraulic motor; 18. Drive gear; 19. Transmission gear; 20. Hydraulic rotary joint; 21. Intermediate column; 22. Mounting shell; 23. P2 hydraulic motor; 24. P2 small mixing cross arm; 25. Small vertical rod; 26. Inner mixing scraper; 27. P1 large mixing cross arm; 28. Large vertical rod; 29. ​​Outer mixing scraper. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 A fully hydraulic planetary mixing device based on a concrete pump truck includes a concrete pump truck 1, a plunger pump 2 built into the concrete pump truck 1, a pump truck feed hopper 3 movably installed at the rear end of the concrete pump truck 1, a guide rail 4 fixedly installed on the upper surface of the concrete pump truck 1, the surface of the guide rail 4 being overlaid with a tungsten carbide coating, a mixing device 5 slidably installed on the guide rail 4, and a push-pull cylinder 6 movably installed between the mixing device 5 and the concrete pump truck 1. The push-pull cylinder 6 pushes the mixing device 5 to move its position on the guide rail 4, facilitating the discharge of concrete.

[0025] Please see Figure 2-4 The mixing device 5 includes a mixing tank 7. Reinforcing plates 8 are fixedly installed on the side walls and bottom walls of the mixing tank 7. A top cover plate 9 is fixedly installed on one side of the top of the mixing tank 7. A C-shaped water inlet pipe 10 is fixedly installed at the top opening of the mixing tank 7 for adding water during mixing, so as to facilitate the concrete to form a paste.

[0026] Please see Figure 2-4 A feeding hopper 11 is fixedly installed on one side of the top of the mixing drum 7. The top of the feeding hopper 11 is hinged with a cover plate for introducing the batching material. A roller 14 corresponding to the guide rail 4 is hinged to the bottom of the mixing drum 7. The roller 14 is a polyurethane-coated steel core wheel to reduce the sliding friction coefficient (μ < 0.1). When the mixing drum 7 moves, the roller 14 moves on the guide rail 4. At the same time, a locking structure is also provided at the end of the guide rail 4 on the concrete pump truck 1. When the mixing drum 7 moves to the target position, the hydraulic pin automatically locks to ensure the stability of unloading.

[0027] Please see Figure 2 A hydraulic rod 12 is hinged to the side of the mixing tank 7. A baffle 13 is fixedly installed at the output end of the hydraulic rod 12 and is slidably connected to the outer wall of the mixing tank 7. By driving the baffle 13 downward through the hydraulic rod 12, the discharge port of the mixing tank 7 can be blocked. Conversely, by driving the baffle 13 upward through the hydraulic rod 12, the discharge port of the mixing tank 7 can be opened.

[0028] Please see Figure 2-3 A hydraulic control integrated valve block 15 is fixedly installed on one side of the top of the upper cover plate 9. The pump truck chassis engine drives the plunger pump 2 to generate high-pressure hydraulic oil, which is distributed through the multi-channel hydraulic control integrated valve block 15. The hydraulic control integrated valve block 15 has a built-in load-sensitive proportional valve group, which dynamically adjusts the flow distribution of the P1 / P2 circuit according to the pumping system pressure to ensure that there is no power conflict when the mixing and pumping work together.

[0029] Please see Figure 2-3A motor mounting base 16 is fixedly installed at the top center of the upper cover plate 9. A P1 hydraulic motor 17 is fixedly installed inside the motor mounting base 16. A drive gear 18 is fixedly installed at the output end of the P1 hydraulic motor 17. A transmission gear 19 meshes with the drive gear 18. A middle column 21 is fixedly installed at the bottom of the transmission gear 19. A mounting shell 22 is eccentrically installed on the outer side of the lower part of the middle column 21. A P2 hydraulic motor 23 is fixedly installed inside the mounting shell 22.

[0030] Please see Figure 2-3 The transmission gear 19 is rotatably mounted to the inner bottom wall of the motor mounting base 16 via a slewing bearing. A hydraulic rotary joint 20 is provided inside the transmission gear 19. The top of the hydraulic rotary joint 20 is fixed to the inner top wall of the motor mounting base 16. The hydraulic rotary joint 20 is connected to the P2 hydraulic motor 23 via a hydraulic pipeline.

[0031] Please see Figure 2-3 The output end of the P2 hydraulic motor 23 is fixedly installed with the P2 small mixing arm 24. The two ends of the P2 small mixing arm 24 are fixedly installed with small vertical rods 25. The bottom of the small vertical rods 25 is equipped with a detachable inner mixing scraper 26, which can be replaced with a fan-shaped scraper, a screw propeller or a crushing tooth structure as needed, to adapt to the mixing requirements of different grades of concrete from C10 to C60.

[0032] Please see Figure 2-3 A large stirring arm 27 (P1) is fixedly installed on the outer side of the intermediate column 21. A large vertical rod 28 is fixedly installed at the tail end of the large stirring arm 27. A detachable external stirring scraper 29 is installed at the bottom of the large vertical rod 28.

[0033] Please see Figure 1-4 The input end of the hydraulic control integrated valve block 15 is connected to the discharge end of the piston pump 2, the first output end of the hydraulic control integrated valve block 15 is connected to the input end of the push-pull cylinder 6, the second output end of the hydraulic control integrated valve block 15 is connected to the input end of the hydraulic rod 12, the third output end of the hydraulic control integrated valve block 15 is connected to the input end of the P1 hydraulic motor 17, and the fourth output end of the hydraulic control integrated valve block 15 is connected to the input end of the P2 hydraulic motor 23.

[0034] Working principle:

[0035] 1. Track-type displacement mechanism: The bottom of the mixing tank 7 is equipped with a movable pulley 14, which slides along the linear guide rail 4;

[0036] 2. Unloading position control component:

[0037] The push-pull cylinder 6 is an actuating hydraulic cylinder. The cylinder body is fixed to the pump truck frame, and the piston rod is hinged to the mixing tank 7, driving its guide rail 4 to switch between the pumping position and the ground unloading position.

[0038] Position locking mechanism: The end of the guide rail 4 is equipped with a mechanical slot. When the mixing tank 7 moves to the target position, the hydraulic pin automatically locks to ensure the stability of unloading.

[0039] The discharge gate actuator unit is linked to the discharge baffle 13 of the mixing tank 7. The opening and closing angle is controlled by a proportional valve to achieve precise flow regulation.

[0040] 3. Mixing stage:

[0041] Start the pump truck engine, and the plunger pump 2 outputs 35MPa hydraulic oil to the hydraulic control integrated valve block 15;

[0042] The operator selects "mixing mode", and the pressure control integrated valve block 15 distributes 70% of the flow to the P1 hydraulic motor 17. The P1 circuit drives the P1 large mixing arm 27 to revolve (15-20 rpm), and 30% of the flow is distributed to the P2 hydraulic motor 23. The P2 circuit drives the P2 small mixing arm 24 to rotate (80-120 rpm). The C-type water inlet pipe 10 injects mixing water according to the preset water-cement ratio, and mixes for 5-8 minutes until the concrete is homogeneous.

[0043] 4. Pumping and unloading stage:

[0044] When switching to "pumping mode", the push-pull cylinder 6 is in the retracted state, and the mixing tank 7 is directly above the pump truck's feed hopper 3.

[0045] 5. Pumping and unloading stage:

[0046] Switch to "Independent Mixing Mode", extend the hydraulic cylinder 6 by 1100mm, and push the mixing tank 7 to slide along the guide rail 4 to 10cm in front of the pump truck feed hopper 3.

[0047] In summary, the P1 hydraulic motor 17 drives the drive gear 18 to rotate, which in turn drives the transmission gear 19 to rotate. The transmission gear 19 drives the intermediate column 21, the mounting shell 22, and the P2 hydraulic motor 23 to rotate synchronously. The P1 large stirring arm 27, the large vertical rod 28, and the outer stirring scraper 29 are installed on the outside of the intermediate column 21. The outer stirring scraper 29 then stirs along the edge of the mixing tank 7.

[0048] While the P2 hydraulic motor 23 rotates, the P2 hydraulic motor 23 also drives the P2 small mixing horizontal arm 24, small vertical rod 25 and inner mixing scraper 26 to rotate, and the inner mixing scraper 26 is used to mix the concrete in the mixing bucket 7.

[0049] When the baffle 13 is pulled up and opened using the hydraulic rod 12, the external mixing scraper 29 can scrape the concrete in the mixing drum 7 and discharge it into the pump truck's feed hopper 3. Then, the concrete pump truck 1 transports the concrete to the building. This process realizes the integrated operation of on-site concrete preparation, mixing and pumping, reducing the sense of fragmentation in the construction process and reducing the efficiency of transfer between the mixing plant and the pump truck.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully hydraulic planetary mixing device based on a concrete pump truck, comprising a concrete pump truck (1), wherein a plunger pump (2) is built into the concrete pump truck (1), a pump truck feed hopper (3) is movably installed at the tail end of the concrete pump truck (1), a guide rail (4) is fixedly installed on the upper surface of the concrete pump truck (1), a mixing device (5) is slidably installed on the guide rail (4), and a push-pull cylinder (6) is movably installed between the mixing device (5) and the concrete pump truck (1), characterized in that: The stirring device (5) includes a stirring tank (7), a top cover plate (9) is fixedly installed on one side of the top of the stirring tank (7), a hydraulic control integrated valve block (15) is fixedly installed on one side of the top of the top of the top cover plate (9), a motor mounting base (16) is fixedly installed at the top center of the top of the top cover plate (9), a P1 hydraulic motor (17) is fixedly installed inside the motor mounting base (16), a drive gear (18) is fixedly installed at the output end of the P1 hydraulic motor (17), a transmission gear (19) meshes with the drive gear (18), a middle column (21) is fixedly installed at the bottom of the transmission gear (19), an mounting shell (22) is eccentrically installed on the outer side of the lower part of the middle column (21), and a P2 hydraulic motor (23) is fixedly installed inside the mounting shell (22).

2. A full hydraulic planetary mixer based on a pump truck according to claim 1, characterized in that: A hydraulic rod (12) is hinged to the side of the mixing tank (7), and a baffle (13) is fixedly installed at the output end of the hydraulic rod (12). The baffle (13) is slidably connected to the outer wall of the mixing tank (7).

3. A full hydraulic planetary mixer based on a pump truck according to claim 1, characterized in that: The mixing tank (7) is fixedly installed with reinforcing plates (8) on its side walls and bottom walls. A C-shaped water inlet pipe (10) is fixedly installed at the top opening of the mixing tank (7). A feeding hopper (11) is fixedly installed on one side of the top of the mixing tank (7). A cover plate is hinged to the top of the feeding hopper (11). A roller (14) corresponding to the guide rail (4) is hinged to the bottom of the mixing tank (7).

4. A full hydraulic planetary mixer based on a pump truck according to claim 1, characterized in that: The transmission gear (19) is rotatably mounted on the inner bottom wall of the motor mounting base (16) via a slewing bearing. A hydraulic rotary joint (20) is provided inside the transmission gear (19). The top of the hydraulic rotary joint (20) is fixed to the inner top wall of the motor mounting base (16). The hydraulic rotary joint (20) is connected to the P2 hydraulic motor (23) via a hydraulic pipeline.

5. A full hydraulic planetary mixer based on a pump truck according to claim 1, characterized in that: The output end of the P2 hydraulic motor (23) is fixedly installed with a P2 small stirring arm (24), and small vertical rods (25) are fixedly installed at both ends of the P2 small stirring arm (24). A detachable inner stirring scraper (26) is installed at the bottom of the small vertical rod (25).

6. A full hydraulic planetary mixer based on a pump truck according to claim 1, characterized in that: The outer side of the intermediate column (21) is fixedly installed with a P1 large stirring cross arm (27), and the tail end of the P1 large stirring cross arm (27) is fixedly installed with a large vertical rod (28). The bottom of the large vertical rod (28) is installed with a detachable outer stirring scraper (29).

7. A full hydraulic planetary mixer based on a pump truck according to claim 1, characterized in that: The input end of the hydraulic control integrated valve block (15) is connected to the discharge end of the piston pump (2), one output end of the hydraulic control integrated valve block (15) is connected to the input end of the push-pull cylinder (6), two output ends of the hydraulic control integrated valve block (15) are connected to the input end of the hydraulic rod (12), three output ends of the hydraulic control integrated valve block (15) are connected to the input end of the P1 hydraulic motor (17), and four output ends of the hydraulic control integrated valve block (15) are connected to the input end of the P2 hydraulic motor (23).

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