Concrete pumping device

Abstract

The utility model discloses a concrete pumping device, and belongs to the technical field of conveying devices. A concrete pumping device comprises a supporting plate and further comprises a conveying pump fixedly connected to the supporting plate, and a discharging hopper fixedly connected to the conveying pump. A smashing box is fixedly connected to the discharging hopper. A smashing roller and a driven roller are rotationally connected to the smashing box. The discharging hopper is rotationally connected with a screening plate. When concrete falls onto the screening plate, stones with large sizes fall onto the crushing roller through the screening plate, and the stones crushed by the crushing roller enter the discharging hopper again to be mixed with the concrete; a servo motor is fixedly connected to the supporting plate, a first transmission belt is connected between the output end of the servo motor and the crushing roller, and gears are fixedly connected to the crushing roller and the driven roller; according to the concrete screening device, the screening efficiency can be improved, stones are prevented from staying on the screening plate and blocking the screening holes, the screened stones can be crushed and added into concrete again, and waste of raw materials is avoided.

Description

Technical Field

[0001] This utility model relates to the field of conveying device technology, and in particular to a concrete pumping device. Background Technology

[0002] A concrete pumping device is a mechanical device that combines a pump body and a delivery pipe. It uses pressure to continuously transport concrete along a specific pipeline and is widely used in construction fields such as building construction, bridges, and tunnels. Especially in projects that require continuous and large-volume concrete delivery, this device can significantly improve construction efficiency and quality.

[0003] Currently, when transporting concrete, existing equipment often causes blockages in the transport pipeline due to excessively large or irregularly shaped aggregate particles. Although existing equipment adds a sieve plate in the hopper to screen the aggregate particles, the sieve plate significantly slows down the falling speed of the concrete, and the screened aggregate particles remain on the sieve plate, clogging the sieve holes. Based on this, the present invention is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a concrete pumping device that can overcome or at least partially solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A concrete pumping device includes a support plate and further includes: a conveying pump fixedly connected to the support plate, a hopper fixedly connected to the conveying pump; a crushing box fixedly connected to the hopper, a crushing roller and a driven roller rotatably connected to the crushing box; and a screening plate rotatably connected to the hopper. When concrete falls onto the screening plate, larger stones fall onto the crushing roller through the screening plate, and the stones crushed by the crushing roller re-enter the hopper to mix with the concrete.

[0007] Preferably, a servo motor is fixedly connected to the support plate, and a first transmission belt is connected between the output end of the servo motor and the crushing roller.

[0008] Preferably, both the crushing roller and the driven roller are fixedly connected with gears, and the two gears mesh with each other.

[0009] Preferably, rotating disks are rotatably connected to both sides of the crushing box, and connecting rods are fixedly connected to the two rotating disks, with the connecting rods being eccentrically arranged.

[0010] Furthermore, a sliding groove is provided on the screening plate, and the sliding groove is slidably connected to the connecting rod.

[0011] Furthermore, a second transmission belt is connected between the driven roller and the rotating disk. When the rotating disk rotates, the screening plate rotates up and down following the connecting rod.

[0012] Preferably, the hopper and the crushing box are respectively provided with a feeding port and a screening port.

[0013] Preferably, a telescopic support rod is fixedly connected to the support plate, and a discharge pipe is connected to the hopper.

[0014] Compared with the prior art, the present invention provides a concrete pumping device, which has the following beneficial effects:

[0015] 1. This concrete pumping device uses a servo motor to drive a rotating disc, which in turn drives a connecting rod to rotate. The connecting rod then drives one end of the screening plate to move up and down reciprocally, thereby enabling the screening plate to quickly shake off stones that have not passed through the screening holes, thus improving screening efficiency.

[0016] 2. This concrete pumping device uses a servo motor to drive the crushing roller and the driven roller to rotate, so that the stones falling onto the crushing roller and the driven roller are transported to the middle of the crushing roller and the driven roller to be crushed. The crushed stones are then mixed with the concrete and pumped away, avoiding waste of raw materials.

[0017] The parts of this device not described herein are the same as or can be implemented using existing technologies. This invention can improve screening efficiency, prevent stones from remaining on the screening plate and clogging the screening holes, and crush the screened stones and add them back into the concrete, thus avoiding waste of raw materials. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a concrete pumping device proposed in this utility model;

[0019] Figure 2 This is a cross-sectional view of the hopper and crushing box in a concrete pumping device proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the crushing roller section in a concrete pumping device proposed in this utility model;

[0021] Figure 4 The present invention proposes a concrete pumping device. Figure 1 Enlarged structural diagram of part A in the middle;

[0022] Figure 5 This utility model proposes a concrete pumping device. Figure 2 Enlarged structural diagram of part B.

[0023] In the diagram: 1. Support plate; 11. Conveying pump; 12. Telescopic support rod; 2. Feed hopper; 21. Screening plate; 211. Sliding groove; 22. Discharge pipe; 23. Screening port; 3. Crushing box; 31. Feeding port; 4. Servo motor; 41. First transmission belt; 5. Crushing roller; 51. Gear; 52. Driven roller; 6. Rotating disk; 61. Connecting rod; 62. Second transmission belt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1: Refer to Figures 1-5 A concrete pumping device includes a support plate 1, and further includes: a conveying pump 11 fixedly connected to the support plate 1, and a discharge hopper 2 fixedly connected to the conveying pump 11; a crushing box 3 fixedly connected to the discharge hopper 2, and a crushing roller 5 and a driven roller 52 rotatably connected to the crushing box 3; a screening plate 21 rotatably connected to the discharge hopper 2; when concrete falls onto the screening plate 21, larger stones fall onto the crushing roller 5 through the screening plate 21, and the stones crushed by the crushing roller 5 re-enter the discharge hopper 2 to mix with the concrete; a telescopic support rod 12 is fixedly connected to the support plate 1, and a discharge pipe 22 is connected to the discharge hopper 2.

[0027] In this utility model, one end of the support plate 1 is rotatably connected to the feed hopper 2 through a rotating shaft, so that multiple small-range reciprocating rotations can be used to form a shaking effect, thereby accelerating the screening effect of concrete. Larger stones slide off the screening plate 21 onto the crushing roller 5 and the driven roller 52. Under the crushing of the crushing roller 5 and the driven roller 52, the stones are crushed into small particles and fall back into the feed hopper 2.

[0028] Preferably, the conveying pump 11 is an S-shaped oscillating pipe hydraulic piston pump body, so that the crushed stone falling through the crushing box 3, after entering the hopper 2 and mixing with the concrete, can enter the piston tube with the piston's suction and be discharged from the discharge pipe 22 through the S-tube.

[0029] The telescopic support rod 12 is a hydraulic telescopic rod or an electric telescopic rod, which can support the entire device to achieve a fixed effect when in use. When it is necessary to move, the telescopic support rod 12 can be retracted to pull the device to move it.

[0030] Example 2: Refer to Figures 1-5 Similar to Embodiment 1, but further: a servo motor 4 is fixedly connected to the support plate 1, and a first transmission belt 41 is connected between the output end of the servo motor 4 and the crushing roller 5. Gears 51 are fixedly connected to both the crushing roller 5 and the driven roller 52, and the two gears 51 mesh with each other. Rotating disks 6 are rotatably connected to both sides of the crushing box 3, and connecting rods 61 are fixedly connected to the two rotating disks 6. The connecting rods 61 are eccentrically set. A sliding groove 211 is opened on the screening plate 21, and the sliding groove 211 is slidably connected to the connecting rod 61. A second transmission belt 62 is connected between the driven roller 52 and the rotating disk 6. When the rotating disk 6 rotates, the screening plate 21 rotates up and down with the connecting rod 61. A discharge port 31 and a screening port 23 are respectively opened at the junction of the hopper 2 and the crushing box 3.

[0031] In this utility model, the servo motor 4 can drive the crushing roller 5 to rotate through the transmission of the first transmission belt 41. When the crushing roller 5 rotates, the driven roller 52 rotates in the opposite direction through the transmission of the gear 51, so that the stones falling onto the crushing roller 5 and the driven roller 52 are transported to the middle of the crushing roller 5 and the driven roller 52 for crushing.

[0032] Both ends of the driven roller 52 are connected to the rotating disks 6 on both sides via the second transmission belt 62, so that the driven roller 52 can drive the rotating disks 6 to rotate when rotating. When the rotating disks 6 rotate, they will drive the connecting rod 61 to rotate around the center of the rotating disks 6, so that the connecting rod 61 will drive one end of the screening plate 21 to move up and down reciprocally. This allows the screening plate 21 to quickly shake the stones on its surface that have not passed through the screening holes onto the crushing roller 5 and the driven roller 52, preventing the stones from staying on the screening plate 21 and clogging the screening holes. Figure 4 As shown, the radius of the turntable connected to the driven roller 52 by the second transmission belt 62 is larger, while the radius of the turntable connected to the rotating disk 6 by the second transmission belt 62 is smaller. This makes the rotation frequency of the rotating disk 6 greater than that of the driven roller 52, thereby increasing the frequency of the shaking of the screening plate 21 and improving the screening efficiency.

[0033] The bottom of the crushing box 3 is sloped, so that the crushed stones can slide down into the hopper 2 by gravity and mix with the concrete. When adding concrete, it should be noted that the amount of concrete left in the hopper 2 should not exceed the bottom of the discharge port 31, so that the stones can be mixed with the concrete smoothly and then removed, avoiding the possibility of stones accumulating at the discharge port 31.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A concrete pumping device comprising a support plate (1), characterized in that, Also include: The support plate (1) is fixedly connected with a conveying pump (11), and the conveying pump (11) is fixedly connected with a lower hopper (2); The lower hopper (2) is fixedly connected with a crushing box (3), and the crushing box (3) is rotatably connected with a crushing roller (5) and a driven roller (52) respectively; The lower hopper (2) is rotatably connected with a screening plate (21); When the concrete falls on the screening plate (21), the larger stones fall on the crushing roller (5) through the screening plate (21), and the crushed stones re-enter the lower hopper (2) and mix with the concrete.

2. A concrete pumping apparatus as claimed in claim 1, wherein, The support plate (1) is fixedly connected with a servo motor (4), and the output end of the servo motor (4) is connected with the crushing roller (5) through a first transmission belt (41).

3. A concrete pumping apparatus as claimed in claim 1, wherein, The crushing roller (5) and the driven roller (52) are fixedly connected with gears (51), and the two gears (51) are engaged.

4. A concrete pumping apparatus as claimed in claim 1, wherein, The two sides of the crushing box (3) are rotatably connected with rotating discs (6), and the rotating discs (6) are fixedly connected with connecting rods (61), which are eccentrically arranged.

5. A concrete pumping apparatus as claimed in claim 4, wherein, The screening plate (21) is provided with a sliding groove (211), and the sliding groove (211) is slidably connected with the connecting rod (61).

6. A concrete pumping apparatus as claimed in claim 5, wherein, The driven roller (52) and the rotating disc (6) are connected with a second transmission belt (62), and when the rotating disc (6) rotates, the screening plate (21) rotates up and down with the connecting rod (61).

7. A concrete pumping apparatus as claimed in claim 1, wherein, The lower hopper (2) and the crushing box (3) are respectively provided with a discharge port (31) and a screening port (23) at the joint.

8. A concrete pumping apparatus as claimed in claim 1, wherein, The support plate (1) is fixedly connected with a telescopic support rod (12), and the lower hopper (2) is communicated with a discharge pipe (22).

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