Dredging equipment for water conservancy project

Abstract

The invention relates to the technical field of water conservancy desilting and dredging equipment, and discloses desilting equipment for a water conservancy project, the desilting equipment comprises a closed cylinder, one side of the closed cylinder is fixedly connected with a silt inlet cylinder, the inner side of the closed cylinder is provided with a filter, and the filter is used for filtering a silt mixed solution in the closed cylinder; the sludge mixed liquid passes through the sludge inlet barrel and the filter and then enters a cavity between the closed barrel and the filter. Sludge mixed liquid is conveyed on the inner side of the filter through cooperation of the packing auger, sludge is pumped out through the sludge pumping pump, filtered stones are forcibly conveyed into the collecting box through the packing auger to be collected, and the stones are collected by adjusting the opening degree of the flow adjusting valve and reducing the rotating speed of the packing auger at rated time intervals. The silt flow distribution of the connecting pipe and the flow dividing pipe is adjusted, the silt inlet amount is reduced, the flow of the flow dividing pipe is increased, meanwhile, the water content in silt mixed liquid entering the collecting box is increased, silt possibly gathered in the collecting box is taken away through water flow, and the use reliability of the desilting equipment is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy silt clearing and dredging equipment, and in particular to a silt clearing equipment used in water conservancy projects. Background Art

[0002] During the construction and operation of water conservancy engineering buildings or the management of some rivers, it is necessary to use dredging equipment to clean up the silt and stones in the sluice culvert area or the water body in the river. During the dredging operation, it is necessary to use a silt extraction pump in conjunction with a grab bucket mechanism to clean out the silt and stones in the water and treat them separately. The silt extraction pump includes a pump body and a silt extraction pipeline. The silt extraction pump is usually set on an underwater walking mechanism or on the lifting arm of the excavation equipment. The silt inlet end of the pipeline is placed in the water body to extract the silt in the water body. At the same time, a filter net is set at the silt inlet end of the pipeline to filter out the stones in the water body to avoid pipe blockage and normal operation of the pump body. The remaining stones are grabbed out by the grab bucket mechanism to complete the dredging operation.

[0003] However, when using traditional dredging equipment, it is difficult for the grabbing mechanism to carry out the grabbing operation and the silt extraction operation at the same time to avoid interference between the operations. At the same time, it is difficult for the grabbing mechanism to operate continuously to grab stones. The amount of stones grabbed at a time is limited and it is easy to grab incomplete stones at the target position. Subsequent manual diving cleaning is required to place the stones in a cage and then lift them out of the water, which makes the stone and silt cleaning process complicated and inefficient, and wastes manpower and material resources. Summary of the invention

[0004] The present application proposes a dredging device for water conservancy projects, which has the advantages of separating and cleaning silt and stones in water bodies and being able to operate continuously, so as to solve the problem of needing multiple dredging devices.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a silt removal device for water conservancy projects, comprising a closed cylinder, one side of the closed cylinder is fixedly connected to a silt inlet cylinder, the inner side of the closed cylinder is provided with a filter, the filter is used to filter the sludge mixture in the closed cylinder, the sludge mixture passes through the silt inlet cylinder and the filter and enters into the cavity between the closed cylinder and the filter, one side of the top of the closed cylinder is fixedly connected to a connecting pipe, the connecting pipe is used to connect the silt extraction pump and the closed cylinder;

[0006] A collecting box is fixedly connected to one side of the closing cylinder, a connecting port is opened on one side of the collecting box, a driving shaft is movably provided on the inner side of the filter, an auger is fixedly connected to the outer side of the shaft body of the driving shaft, and when the silt extraction pump is extracting silt, the auger guides the silt mixture to the collecting box, different parts of the filter contact the silt mixture and filter the silt mixture, and the auger forces stones to be guided to the collecting box.

[0007] The beneficial effects of the present invention are as follows:

[0008] The present application provides a dredging equipment for water conservancy projects, which drives the auger to rotate through an active shaft. While the silt extraction pump extracts silt through a connecting pipe, the auger rotates to cooperate with the introduction of a silt mixture, which is then extracted by the silt extraction pump after passing through a filter. The auger forces stones in the silt mixture to be directed to a collection box for subsequent separate treatment and to prevent stones from clogging the filter, thereby achieving the effect of separating silt and stones and collecting them separately during continuous dredging operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0011] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0012] Figure 3 For the present invention Figure 2 A magnified view of the structure at A;

[0013] Figure 4 It is a schematic diagram of the structure of the filter of the present invention;

[0014] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point B in the figure.

[0015] In the figure: 1-closed cylinder, 2-filter, 201-cylinder, 202-arc filter plate, 3-collection box, 4-sludge inlet cylinder, 5-reset mechanism, 501-magnetic block No. 1, 502-limit block, 503-magnetic block No. 2, 6-transmission mechanism, 601-support shaft, 602-gear No. 1, 603-gear No. 2, 604-gear No. 3, 605-external transmission shaft, 606-gear No. 4, 7-auger, 8-sludge extraction pipe, 9-connecting pipe, 10-shunt pipe, 11-flow regulating valve, 12-fixed box, 13-active shaft, 14-drive motor, 15-magnetic block No. 3, 16-electromagnet, 17-filter, 18-fixed rod, 19-mounting plate, 20-transmission rod, 21-support rod. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0017] Embodiment 1, as Figure 1 , Figure 2 and Figure 4 A silt removal device for water conservancy projects includes a closed cylinder 1, one side of the closed cylinder 1 is fixedly connected to a silt inlet cylinder 4, the inner side of the closed cylinder 1 is provided with a filter 2, the filter 2 is cylindrical, one side of the top of the closed cylinder 1 is fixedly connected to a connecting pipe 9, the connecting pipe 9 is used to connect the silt extraction pump and the cavity of the closed cylinder 1, the silt enters the inner side of the silt inlet cylinder 4 and the filter 2 from one side of the silt inlet cylinder 4, the silt enters the cavity between the closed cylinder 1 and the filter 2 after passing through the filter 2, and then is extracted by the silt extraction pump through the connecting pipe 9, while the filter 2 restricts the passage of stones in the water body, and the stones remain in the inner cavity of the filter 2.

[0018] A collecting box 3 is fixedly connected to one side of the closing cylinder 1, and the collecting box 3 is used to collect the filtered stones. A driving shaft 13 is movably provided on the inner side of the filter 2, and the axis of the driving shaft 13 is colinear with the axis of the filter 2. The sludge inlet cylinder 4 is located on one side of the filter 2, and an auger 7 is fixedly connected to the outer side of the shaft body of the driving shaft 13, and the driving shaft 13 is used to drive the auger 7 to rotate. The auger 7 is used to guide the silt and stones to the collecting box 3 when the silt pump is pumping silt. The silt is pumped out of the filter 2 by the silt pump during the movement driven by the auger 7, thereby separating the silt and stones on the inner side of the filter 2. The radius of the auger 7 and the spiral blades are adapted to the inner diameter of the filter 2. The auger 7 forces the stones on the inner side of the filter 2 to be guided to the collecting box 3, so as to prevent the stones from accumulating on the inner side of the filter 2 and clogging the filter 2.

[0019] A connecting port is provided on one side of the collecting box 3, which connects the cavity of the collecting box 3 and the inner cavity of the filter 2. A supporting rod 21 is fixedly connected to one side of the collecting box 3, and one end of the supporting rod 21 is fixedly connected to the fixing box 12. The number of supporting rods 21 is set to be several, and the several supporting rods 21 are arranged in a ring shape and are evenly spaced on the outside of the fixing box 12. A driving motor 14 is fixedly arranged on the inside of the fixing box 12, and the output end of the driving motor 14 is transmission-connected to the driving shaft 13. A fixing rod 18 is fixedly connected to one side of the silt inlet tube 4, and one end of the fixing rod 18 is fixedly connected to a shaft sleeve, which is rotatably sleeved with the driving shaft 13. The number of fixing rods 18 is set to be several and the several fixing rods 18 are distributed in a ring shape on the outside of the shaft sleeve. A mounting plate 19 is fixedly connected to one side of the collecting box 3. The dredging equipment is fixedly mounted on the underwater walking mechanism through the mounting plate 19. The dredging equipment can also be fixedly mounted on the lifting mechanism of the floating box. A box door is detachably provided at the bottom of the collecting box 3 to facilitate the removal of the collected stones after the dredging operation is completed.

[0020] When in use, the silt extraction pump operates to extract silt, and at the same time, the driving motor 14 drives the driving shaft 13 to rotate, and the driving shaft 13 drives the auger 7 to rotate and cooperate with the silt extraction pump to guide the silt from the opening of the silt inlet tube 4 to the collecting box 3. The silt and stones are separated on the inner side of the filter 2, and the silt is extracted by the silt extraction pump through the filter 2. The stones are forced to enter the collecting box 3 through the connecting port under the forced drive of the auger 7 for collection, thereby completing the separation of silt and stones and collecting them separately during the continuous silt extraction operation, thereby improving the dredging efficiency. The auger 7 drives the stones out of the cavity of the filter 2, avoiding the blockage of the filter 2 by the stones, and further ensuring the cleaning efficiency of the silt and stones.

[0021] One end of the connecting pipe 9 is fixedly connected to the silt extraction pipe 8, and the connecting pipe 9 is connected to the silt extraction pump through the silt extraction pipe 8. A shunt pipe 10 is fixedly connected to the top of the collecting box 3. One end of the shunt pipe 10 is fixedly connected to the silt extraction pipe 8. The shunt pipe 10 connects the silt extraction pipe 8 and the collecting box 3. A filter screen 17 is fixedly provided on the top of the collecting box 3. The filter screen 17 is located at one end of the shunt pipe 10. A flow regulating valve 11 is fixedly provided on the pipe body of the shunt pipe 10, and the flow regulating valve 11 is configured as a proportional valve.

[0022] When the silt is being pumped out, the opening of the proportional valve is reduced, so that the opening of the diverter pipe 10 is smaller than the opening of the connecting pipe 9. The silt mainly passes through the filter 2 and is pumped out from the connecting pipe 9 by the silt pump. A small amount of silt that enters the collecting box 3 passes through the filter screen 17 and then enters the diverter pipe 10, and is pumped out through the silt pump 8 by the silt pump. A small amount of silt mixed liquid enters the collecting box 3, and the mixed liquid in the collecting box 3 is kept fluid to prevent the silt from sinking and accumulating. The opening of the proportional valve is kept in a small opening state, so that the water flow in the collecting box 3 can drive the silt to flow but cannot drive the stones to rise, to prevent the stones from clogging the filter screen 17, thereby ensuring the overall silt pumping efficiency. At the same time, it prevents some silt that may not have been pumped out through the filter 2 from gathering and accumulating in the collecting box 3, resulting in a reduction in the capacity of the collecting box 3 to store stones, thereby increasing the continuous working time of the silt removal equipment in a single silt pumping operation, and further improving the working efficiency of the silt removal equipment.

[0023] After the equipment has been continuously desilting for a certain period of time, the controller that controls the drive motor 14 reduces the rotation speed of the drive motor 14, so that the speed of the material introduced by the auger 7 decreases, the working frequency of the silt extraction pump remains unchanged, and at the same time, the opening of the proportional valve is increased, so that the opening of the diversion pipe 10 is greater than the opening of the connecting pipe 9, so that the sludge content in the sludge mixed liquid entering the filter 2 is relatively reduced, and the mixed liquid with reduced sludge content is more pumped out by the silt extraction pump through the collecting box 3 than the filter 2, thereby taking out the silt that may be accumulated in the collecting box 3 and reducing the relative silt content in the collecting box 3. Furthermore, the silt removal equipment can be located in the water body after the silt extraction is completed, stop moving and increase the opening of the proportional valve. The silt extraction pump draws water, so that the water flows through the collecting box 3 and takes away the silt in the collecting box 3, ensuring that the capacity of the collecting box 3 to store stones is sufficient, further ensuring the reliability of the use of the silt removal equipment.

[0024] Embodiment 2, as Figure 2 , Figure 4 and Figure 5 On the basis of the first embodiment, the filter 2 includes a cylinder 201 and an arc filter plate 202, the arc filter plate 202 is slidably connected to the cylinder 201, the thickness of the arc filter plate 202 is increased to form a side plate, the side plate is fitted with the cylinder 201, and the sliding surfaces of the arc filter plate 202 are ensured to fit each other when the arc filter plate 202 moves relative to the cylinder 201, the spiral blade diameter of the auger 7 is smaller than the inner diameter of the cylinder 201, and unnecessary contact and additional wear between the auger 7 and the cylinder 201 are avoided, and an electromagnet 16 is fixedly provided on the top of the closed cylinder 1, and a filter hole for sludge to pass through is opened on the plate body of the arc filter plate 202, and a No. 3 magnetic block 15 corresponding to the position of the electromagnet 16 is fixedly provided on the outer side of the arc filter plate 202, and the acting force between the No. 3 magnetic block 15 and the electromagnet 16 is a repulsive force.

[0025] The curved filter plate 202 is located on the outer side of the cylinder 201 and is fixedly connected to the second magnetic block 503. The number of the second magnetic blocks 503 is set to be several and symmetrically arranged on both sides of the curved filter plate 202 about the axis of the curved filter plate 202. The outer wall of the cylinder 201 is fixedly provided with the first magnetic block 501. The number of the first magnetic block 501 matches the number of the second magnetic block 503 and the positions correspond. The acting force between the first magnetic block 501 and the second magnetic block 503 is Repulsive force, one side of the No. 1 magnetic block 501 is fixedly connected to the limiting block 502, and the limiting block 502 is T-shaped. The limiting block 502 can resist the side of the corresponding No. 2 magnetic block 503 to limit the sliding range of the arc filter plate 202 and prevent the arc filter plate 202 from contacting the inner wall of the closed cylinder 1. The No. 1 magnetic block 501 can resist the No. 2 magnetic block 503 to prevent the arc filter plate 202 from detaching from the cylinder 201 without affecting the sliding of the arc filter plate 202 toward the inside of the cylinder 201.

[0026] After the silt removal equipment has been operating continuously for a certain period of time, the current flowing through the electromagnet 16 is increased, and the repulsive force between the electromagnet 16 and the third magnetic block 15 is greater than the repulsive force between the first magnetic block 501 and the second magnetic block 503. The third magnetic block 15 drives the arc filter plate 202 to approach the spiral blades of the auger 7 and contact the auger 7. The auger 7 scrapes off the small particles of stone on the inner side of the arc filter plate 202 and intermittently cleans the filter 2, thereby reducing the additional wear of the auger 7 and further avoiding congestion of the filter 2.

[0027] The flow regulating valve 11 is configured as an electromagnetic proportional valve and is electrically connected to the electromagnet 16 in series. The opening of the electromagnetic proportional valve increases with the increase of the current. When the current of the flow regulating valve 11 increases and the opening increases, the current flowing through the electromagnet 16 increases, so that the arc filter plate 202 is close to the auger 7 when the flow in the connecting pipe 9 decreases. The small stone particles at the bottom of the arc filter plate 202 are driven down by the water flow in the opposite direction of gravity, while the stone particles are driven by the water flow flowing to the collection box 3. The stones are more easily scraped off by the auger 7 under the action of the water flow and gravity, further improving the cleaning effect of the auger 7 on the arc filter plate 202.

[0028] Embodiment three, as Figure 2-Figure 4On the basis of the third embodiment, a support shaft 601 is rotatably connected to one side of the fixed box 12, a No. 2 gear 603 is fixedly sleeved at one end of the support shaft 601, a No. 3 gear 604 is fixedly sleeved at the middle position of the support shaft 601, a No. 1 gear 602 is fixedly sleeved at one end of the driving shaft 13 located in the fixed box 12, an outer transmission shaft 605 is rotatably sleeved at one end of the driving shaft 13, a No. 4 gear 606 is fixedly sleeved at one end of the outer transmission shaft 605, and a transmission rod 2 is fixedly connected to one end of the outer transmission shaft 605. 0, the number of transmission rods 20 is set to be several and the several transmission rods 20 are arranged in a ring shape on the outside of the outer transmission shaft 605, the No. 1 gear 602 and the No. 2 gear 603 are meshed with each other, the No. 3 gear 604 and the No. 4 gear 606 are meshed with each other, the closing cylinder 1 and the sludge inlet cylinder 4 are both rotatably connected to the cylinder body 201, one end of the transmission rod 20 is fixedly connected to the cylinder body 201, the number of arc filter plates 202 is set to be several and the several arc filter plates 202 are evenly spaced and arranged on the cylinder wall of the cylinder body 201.

[0029] When in use, the driving shaft 13 drives the No. 1 gear 602 to rotate, the No. 1 gear 602 drives the No. 2 gear 603 to rotate, the No. 2 gear 603 cooperates with the support shaft 601 to drive the No. 3 gear 604 to rotate, the No. 3 gear 604 drives the No. 4 gear 606 to rotate, thereby driving the outer transmission shaft 605 to rotate at a speed lower than that of the driving shaft 13, the outer transmission shaft 605 drives the transmission rod 20 to rotate, the transmission rod 20 drives the cylinder 201 to rotate, the cylinder 201 drives the arc filter plate 202 to rotate and alternately pass through the bottom of the electromagnet 16, when the position of the No. 3 magnetic block 15 corresponding to the arc filter plate 202 corresponds to the position of the electromagnet 16, the arc filter plate 202 is driven down by the No. 3 magnetic block 15, ensuring the cleaning effect of the arc filter plate 202 while increasing the area of ​​the filtering part on the cylinder 201, thereby increasing the contact area between the sludge and the filtering part of the filter 2, thereby ensuring the flow of sludge through the filter 2, and further improving the reliability of the dredging equipment.

[0030] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dredging device for water conservancy projects, characterized in that: The invention comprises a closed cylinder (1), one side of which is fixedly connected to a sludge inlet cylinder (4), a filter (2) is arranged on the inner side of the closed cylinder (1), the filter (2) is used to filter the sludge mixed liquid in the closed cylinder (1), the sludge mixed liquid passes through the sludge inlet cylinder (4) and the filter (2) and enters the cavity between the closed cylinder (1) and the filter (2), one side of the top of the closed cylinder (1) is fixedly connected to a connecting pipe (9), the connecting pipe (9) is used to connect the sludge extraction pump and the closed cylinder (1); A collecting box (3) is fixedly connected to one side of the sealing cylinder (1), and a connecting port is provided on one side of the collecting box (3). A driving shaft (13) is movably provided inside the filter (2), and an auger (7) is fixedly connected to the outside of the shaft body of the driving shaft (13). When the silt extraction pump is extracting silt, the auger (7) guides the sludge mixture to the collecting box (3), and different parts of the filter (2) contact the sludge mixture to filter the sludge mixture, and the auger (7) forcibly guides stones to the collecting box (3).

2. A dredging device for water conservancy projects according to claim 1, characterized in that: One end of the connecting pipe (9) is fixedly connected to a silt extraction pipe (8), and the connecting pipe (9) is connected to a silt extraction pump via the silt extraction pipe (8). The top of the collecting box (3) is fixedly connected to a shunt pipe (10), and one end of the shunt pipe (10) is fixedly connected to the silt extraction pipe (8). The shunt pipe (10) connects the silt extraction pipe (8) and the collecting box (3). A filter screen (17) is fixedly provided on the top of the collecting box (3), and a flow regulating valve (11) is fixedly provided on the pipe body of the shunt pipe (10).

3. A dredging device for water conservancy projects according to claim 2, characterized in that: The filter (2) comprises a cylinder (201) and an arc-shaped filter plate (202), the arc-shaped filter plate (202) being slidably connected to the cylinder (201), the spiral blade diameter of the auger (7) being smaller than the inner diameter of the cylinder (201), an electromagnet (16) being fixedly arranged on the top of the closed cylinder (1), the plate body of the arc-shaped filter plate (202) being provided with filter holes for sludge to pass through, a No. 3 magnetic block (15) corresponding to the position of the electromagnet (16) being fixedly arranged on the outer side of the arc-shaped filter plate (202), the action force between the No. 3 magnetic block (15) and the electromagnet (16) being a repulsive force, and a reset mechanism (5) being arranged on the outer side of the filter (2), the reset mechanism (5) being used for driving the arc-shaped filter plate (202) to reset after the action force between the electromagnet (16) and the No. 3 magnetic block (15) is removed.

4. A dredging device for water conservancy projects according to claim 3, characterized in that: The reset mechanism (5) comprises a first magnetic block (501) and a second magnetic block (503); the first magnetic block (501) is fixedly connected to the cylinder (201); the second magnetic block (503) is fixedly connected to the arc filter plate (202); the acting force between the first magnetic block (501) and the second magnetic block (503) is a repulsive force; one side of the first magnetic block (501) is fixedly connected to a limiting block (502); the limiting block (502) is T-shaped and is used to limit the range of movement of the second magnetic block (503) relative to the first magnetic block (501).

5. The dredging equipment for water conservancy projects according to claim 3, characterized in that: The flow regulating valve (11) is configured as an electromagnetic proportional valve and is electrically connected to the electromagnet (16) in series, and the opening of the electromagnetic proportional valve increases as the current increases.

6. The dredging equipment for water conservancy projects according to claim 4, characterized in that: The number of the second magnetic blocks (503) is set to be a plurality and they are symmetrically arranged on both sides of the arc filter plate (202) about the axis of the arc filter plate (202); the number of the first magnetic blocks (501) matches the number of the second magnetic blocks (503) and their positions correspond; the magnitude of the repulsive force between the electromagnet (16) and the third magnetic block (15) can be greater than the magnitude of the repulsive force between the first magnetic block (501) and the second magnetic block (503).

7. The dredging equipment for water conservancy projects according to claim 2, characterized in that: A support rod (21) is fixedly connected to one side of the collection box (3), one end of the support rod (21) is fixedly connected to a fixed box (12), the number of the support rods (21) is set to be a plurality, a drive motor (14) is fixedly arranged on the inner side of the fixed box (12), and the output end of the drive motor (14) is transmission-connected to the driving shaft (13).

8. The dredging equipment for water conservancy projects according to claim 7, characterized in that: A transmission mechanism (6) is provided on one side of the fixed box (12); the sealing cylinder (1) and the sludge inlet cylinder (4) are both rotatably connected to the cylinder body (201); and the transmission mechanism (6) is used to drive the cylinder body (201) to rotate.

9. The dredging equipment for water conservancy projects according to claim 8, characterized in that: The transmission mechanism (6) comprises a support shaft (601) and an external transmission shaft (605), the support shaft (601) is rotatably connected to the fixed box (12), one end of the support shaft (601) is fixedly sleeved with a second gear (603), a middle portion of the support shaft (601) is fixedly sleeved with a third gear (604), one end of the driving shaft (13) is fixedly sleeved with a first gear (602), and the external transmission shaft (605) is rotatably sleeved with the driving shaft (13); One end of the outer transmission shaft (605) is fixedly sleeved with a fourth gear (606), one end of the outer transmission shaft (605) is fixedly connected with a transmission rod (20), the number of the transmission rods (20) is set to be several, the first gear (602) and the second gear (603) are meshed with each other, the third gear (604) and the fourth gear (606) are meshed with each other, one end of the transmission rod (20) is fixedly connected to the cylinder (201), and the number of the arc filter plates (202) is set to be several.

10. The dredging equipment for water conservancy projects according to claim 1, characterized in that: A mounting plate (19) is fixedly connected to one side of the collecting box (3), a fixing rod (18) is fixedly connected to one side of the sludge inlet cylinder (4), one end of the fixing rod (18) is fixedly connected to a shaft sleeve, the shaft sleeve is rotatably sleeved with the driving shaft (13), and the number of the fixing rods (18) is set to be several.

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