A hydraulic linkage control system for a fully hydraulic wet spraying machine

Abstract

The hydraulic linkage control system of a fully hydraulic wet spraying machine described in the present invention adds an oil circuit integrated distributor to the original hydraulic system of the wet spraying machine. The distributor can coordinate the supply of hydraulic oil between the two hydraulic cylinders and the S-tube swing cylinder, realize the coordinated reciprocating alternating gapless motion between the left and right hydraulic cylinders and the S-tube swing cylinder, and then realize the non-intermittent pumping of the wet spraying machine, thereby improving the wet spraying efficiency. The oil circuit integrated distributor is a hydraulic oil circuit circuit assembly as a whole, in which multiple oil circuit channels are arranged to coordinate the directional supply of hydraulic oil. The overall structure is simple and highly practical.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic wet spraying machines, in particular to a hydraulic linkage control system for a full hydraulic wet spraying machine. Background Art

[0002] Wet spraying machine is a common type of spraying equipment in mining equipment. It uses the thrust generated by the hydraulic pump to make the two cylinders move back and forth alternately, and send the dense flowing material from the conveying pipeline to the mixing pipe, and then to the nozzle for spraying through compressed air. The wet spraying machines currently used in the market are not functional enough. There are intervals between the alternating movements of the cylinders, which makes the spraying construction time intermittent. Intermittent construction can easily block the pipeline and cause equipment damage and other defects. The specific reason is that the hydraulic control circuits of most wet spraying machines on the market are relatively simple, and it is impossible to achieve non-intermittent alternating movement between the two cylinders. This is manifested as insufficient smooth performance in the specific construction process of the equipment, which is specifically manifested in equipment wear, equipment cleaning, pipeline maintenance, personnel configuration, etc. Summary of the invention

[0003] In order to solve the above problems, the purpose of the present invention is to propose a hydraulic linkage control system for a fully hydraulic wet spraying machine, which can realize the linkage of the double hydraulic cylinders and the S-tube swing cylinder, realize the uninterrupted alternating reciprocating motion of the hydraulic cylinders and the uninterrupted pumping of concrete, and improve efficiency.

[0004] The technical solution adopted by the present invention is: a hydraulic linkage control system of a fully hydraulic wet spraying machine, comprising a hydraulic oil tank, a multi-way valve, an oil circuit integrated distributor, a left hydraulic cylinder and a right hydraulic cylinder for pushing the wet spraying machine to discharge materials, and an S-tube swing cylinder for controlling the switching of the wet spraying machine delivery pipeline, wherein the oil outlet of the hydraulic oil tank is connected to the oil inlet of the multi-way valve, the oil outlet of the multi-way valve is connected to the total oil inlet hole of the oil circuit integrated distributor, the total oil inlet hole is connected to the oil supply hole of the left hydraulic cylinder in the oil circuit integrated distributor, the oil supply hole of the left hydraulic cylinder is connected to the left hydraulic cylinder, the front ends of the left hydraulic cylinder and the right hydraulic cylinder are both provided with oil holes A and oil holes B controlled by a signal controller, the oil hole A on the left hydraulic cylinder is connected to the right hydraulic oil The oil hole A on the cylinder is connected, the oil hole B on the left hydraulic cylinder is connected to the left hydraulic cylinder oil return hole on the oil circuit integrated distributor, the left hydraulic cylinder oil return hole is connected to the left swing cylinder oil supply hole in the oil circuit integrated distributor, the left swing cylinder oil supply hole is connected to the left swing cylinder oil hole of the S-tube swing cylinder, the right swing cylinder oil hole of the S-tube swing cylinder is connected to the right swing cylinder oil supply hole in the oil circuit integrated distributor, the right swing cylinder oil supply hole is connected to the right hydraulic cylinder oil supply hole in the oil circuit integrated distributor, the right hydraulic cylinder oil supply hole is connected to the right hydraulic cylinder, the oil hole B on the right hydraulic cylinder is connected to the right hydraulic cylinder oil return hole in the oil circuit integrated distributor, and the right hydraulic cylinder oil return hole is connected to the right swing cylinder oil supply hole in the oil circuit integrated distributor;

[0005] The oil circuit integrated distributor is also provided with a total oil return hole, the left hydraulic cylinder oil return hole is connected to the oil return port of the total oil return hole, and the oil outlet of the total oil return hole is connected to the oil return port on a multi-way valve.

[0006] Preferably, a one-way valve is provided on the connecting pipeline between the oil supply hole of the left hydraulic cylinder and the left hydraulic cylinder, and on the connecting pipeline between the oil supply hole of the right hydraulic cylinder and the right hydraulic cylinder.

[0007] Preferably, a one-way valve is provided on the connecting pipeline between the oil hole B in the left hydraulic cylinder and the oil return hole of the left hydraulic cylinder.

[0008] Preferably, a one-way valve is provided on the connecting pipeline between the oil return hole of the right hydraulic cylinder and the oil supply hole of the right swing cylinder.

[0009] Preferably, a solenoid valve controlled by a time relay is provided on the connecting pipeline between the oil return hole of the left hydraulic cylinder and the main oil return hole.

[0010] Preferably, the opening and closing time of the solenoid valve is the time taken for one cycle of reciprocating motion of the left hydraulic cylinder, the right hydraulic cylinder and the S-tube swing cylinder.

[0011] Preferably, the signal controller includes a displacement sensor for monitoring the displacement degree of the piston in the hydraulic cylinder and an electromagnetic valve for controlling the opening and closing of the oil hole A and the oil hole B in cooperation with the displacement sensor.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The hydraulic linkage control system of a fully hydraulic wet spraying machine described in the present invention adds an oil circuit integrated distributor to the original hydraulic system of the wet spraying machine. The distributor can coordinate the supply of hydraulic oil between the two hydraulic cylinders and the S-tube swing cylinder, realize the coordinated reciprocating alternating gapless motion between the left and right hydraulic cylinders and the S-tube swing cylinder, and then realize the non-intermittent pumping of the wet spraying machine, thereby improving the wet spraying efficiency. The oil circuit integrated distributor is a hydraulic oil circuit circuit assembly as a whole, in which multiple oil circuit channels are arranged to coordinate the directional supply of hydraulic oil. The overall structure is simple and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the oil supply connection of the front half of the hydraulic oil circuit when the left hydraulic cylinder is extended and the right hydraulic cylinder is retracted;

[0015] Figure 2 It is a schematic diagram of the oil supply connection of the second half of the hydraulic oil circuit when the left hydraulic cylinder is retracted and the right hydraulic cylinder is extended;

[0016] Figure 3 This is a schematic diagram of the complete oil supply connection cycle of the hydraulic oil circuit.

[0017] Markings in the figure: 1. Hydraulic oil tank, 2. One-unit multi-way valve, 3. Oil circuit integrated distributor, 31. Total oil inlet hole, 32. Left hydraulic cylinder oil supply hole, 33. Left hydraulic cylinder oil return hole, 34. Left swing cylinder oil supply hole, 35. Right swing cylinder oil supply hole, 36. Right hydraulic cylinder oil supply hole, 37. Right hydraulic cylinder oil return hole, 38. Total oil return hole, 4. Left hydraulic cylinder, 5. Right hydraulic cylinder, 6. S-tube swing cylinder, 61. Left swing cylinder oil hole, 62. Right swing cylinder oil hole, 7. Signal controller, 8. Check valve, 9. Solenoid valve. DETAILED DESCRIPTION

[0018] The present invention is described in detail below in conjunction with specific embodiments. This embodiment is based on the technical solution of the present invention and provides a detailed implementation method and specific operation process.

[0019] As shown in the figure, the present invention is a hydraulic linkage control system for a fully hydraulic wet spraying machine, comprising a hydraulic oil tank 1, a multi-way valve 2, an oil circuit integrated distributor 3, a left hydraulic cylinder 4 and a right hydraulic cylinder 5 for pushing the wet spraying machine to discharge materials, and an S-tube swing cylinder 6 for controlling the switching of the wet spraying machine delivery pipeline, wherein the oil outlet of the hydraulic oil tank 1 is connected to the oil inlet of the multi-way valve 2, the oil outlet of the multi-way valve 2 is connected to the total oil inlet hole 31 of the oil circuit integrated distributor 3, the total oil inlet hole 31 is connected to the left hydraulic cylinder oil supply hole 32 in the oil circuit integrated distributor 3, the left hydraulic cylinder oil supply hole 32 is connected to the left hydraulic cylinder 4, the front ends of the left hydraulic cylinder 4 and the right hydraulic cylinder 5 are both provided with oil holes A and oil holes B controlled by a signal controller 7, the oil hole A on the left hydraulic cylinder 4 is connected to the oil hole A on the right hydraulic cylinder 5 , the oil hole B on the left hydraulic cylinder 4 is connected to the left hydraulic cylinder oil return hole 33 on the oil circuit integrated distributor 3, the left hydraulic cylinder oil return hole 33 is connected to the left swing cylinder oil supply hole 34 in the oil circuit integrated distributor 3, the left swing cylinder oil supply hole 34 is connected to the left swing cylinder oil hole 61 of the S-tube swing cylinder 6, the right swing cylinder oil hole 62 of the S-tube swing cylinder 6 is connected to the right swing cylinder oil supply hole 35 in the oil circuit integrated distributor 3, the right swing cylinder oil supply hole 35 is connected to the right hydraulic cylinder oil supply hole 36 in the oil circuit integrated distributor 3, the right hydraulic cylinder oil supply hole 36 is connected to the right hydraulic cylinder 5, the oil hole B on the right hydraulic cylinder 5 is connected to the right hydraulic cylinder oil return hole 37 in the oil circuit integrated distributor 3, and the right hydraulic cylinder oil return hole 37 is connected to the right swing cylinder oil supply hole 35 in the oil circuit integrated distributor 3;

[0020] The oil circuit integrated distributor 3 is also provided with a total oil return hole 38 , the left hydraulic cylinder oil return hole 33 is connected to the oil return port of the total oil return hole 38 , and the oil outlet of the total oil return hole 38 is connected to the oil return port on the multi-way valve 2 .

[0021] The above is a basic implementation of the present invention, and further improvements, optimizations or limitations may be made on the above basis.

[0022] Furthermore, a one-way valve 8 is provided on the connecting pipeline between the left hydraulic cylinder oil supply hole 32 and the left hydraulic cylinder 4 , and on the connecting pipeline between the right hydraulic cylinder oil supply hole 36 and the right hydraulic cylinder 5 .

[0023] Furthermore, a one-way valve 8 is provided on the connecting pipeline between the oil hole B in the left hydraulic cylinder 4 and the left hydraulic cylinder oil return hole 33 .

[0024] Furthermore, a one-way valve 8 is provided on the connecting pipeline between the right hydraulic cylinder oil return hole 37 and the right swing cylinder oil supply hole 35 .

[0025] Furthermore, a solenoid valve 9 controlled by a time relay is provided on the connecting pipeline between the left hydraulic cylinder oil return hole 33 and the main oil return hole 38 .

[0026] Furthermore, the opening and closing time of the solenoid valve 9 is the time taken for the left hydraulic cylinder 4, the right hydraulic cylinder 5 and the S-tube swing cylinder 6 to perform one reciprocating motion cycle.

[0027] Furthermore, the signal controller 7 includes a displacement sensor for monitoring the displacement degree of the piston in the hydraulic cylinder and an electromagnetic valve for controlling the opening and closing of the oil hole A and the oil hole B in cooperation with the displacement sensor.

[0028] The hydraulic oil circuit circulation of the present invention is divided into two stages. The first stage is the advancement of the left hydraulic cylinder and the swing of the S-tube swing cylinder 6, so as to realize the connection and coordination between the S-tube and the left hydraulic cylinder 4 and complete the pumping; the second stage is the advancement of the hydraulic cylinder 5 and the swing of the S-tube swing cylinder 6, so as to realize the connection and coordination between the S-tube and the right hydraulic cylinder 5 and complete the pumping; the two stages are combined into a complete hydraulic oil circuit circulation, which is perfectly connected to realize the uninterrupted pumping of the full hydraulic wet spraying machine and improve the pumping efficiency.

[0029] The first stage, such as Figure 1 As shown, the advancement of the left hydraulic cylinder 4:

[0030] After the hydraulic oil is sent out from the hydraulic oil tank 1, it passes through the multi-way valve 2 and enters the main oil inlet hole 31, and then passes through the left hydraulic cylinder oil supply hole 32 and the left hydraulic cylinder 4 in sequence, pushing out the piston of the left hydraulic cylinder 4 (at this time, the S-tube swing cylinder 6 is located on the right side, so that the S-tube and the left hydraulic cylinder 4 cooperate to complete the pumping). When the piston of the left hydraulic cylinder 4 is completely pushed out, the signal controller 7 is triggered, which sends a signal to open the oil holes A and B on the left hydraulic cylinder 4, and the hydraulic oil in the left hydraulic cylinder 4 is A part of the hydraulic oil enters the right hydraulic cylinder 5 through the oil hole A, causing the piston of the right hydraulic cylinder 5 to retract, and a part of the hydraulic oil enters the left hydraulic cylinder oil return hole 33 through the oil hole B, and then is sent out through the left swing cylinder oil supply hole 34, enters the left swing cylinder oil hole 61, pushes the S-tube swing cylinder 6, so that the S-tube reaches the right side, and pushes the S-tube to a position that cooperates with the right hydraulic cylinder 5, and then the hydraulic oil further passes through the right swing cylinder oil supply hole 35 and the right hydraulic cylinder oil supply hole 36 and then enters the right hydraulic cylinder 5.

[0031] The second stage: Figure 2 As shown, the advancement of the right hydraulic cylinder 5:

[0032] This stage is connected to the first stage. The hydraulic oil enters the right hydraulic cylinder 5, and the piston of the hydraulic cylinder 5 is pushed out (at this time, the S tube is in a position that cooperates with the right hydraulic cylinder 5) to complete the pumping. Then, when the piston of the right hydraulic cylinder 5 is completely pushed out, the signal controller 7 is triggered, which sends a signal to open the oil hole A and the oil hole B on the right hydraulic cylinder 5. A part of the hydraulic oil in the right hydraulic cylinder 5 enters the left hydraulic cylinder 4 through the oil hole A, so that the piston of the left hydraulic cylinder 4 retracts, and a part of the hydraulic oil enters the right hydraulic cylinder oil return hole 37 through the oil hole B, and then is sent out through the right swing cylinder oil supply hole 35, enters the right swing cylinder oil hole 62, pushes the S tube swing cylinder 6, so that the S tube reaches the left side, and pushes the S tube to a position that cooperates with the left hydraulic cylinder 4. Then, the hydraulic oil passes through the left swing cylinder oil supply hole 34 and the left hydraulic cylinder oil return hole 33 in turn, and then returns to the total return oil hole 38, and then returns to the hydraulic oil tank through the total return oil hole 38, completing the cycle completed in sequence.

[0033] This process repeats itself over and over again, continuously cycling the above two stages to complete the uninterrupted pumping of the wet spraying machine.

[0034] The hydraulic linkage control system of a fully hydraulic wet spraying machine described in the present invention adds an oil circuit integrated distributor 3 to the original hydraulic system of the wet spraying machine. The distributor can coordinate the supply of hydraulic oil between the two hydraulic cylinders and the S-tube swing cylinder 6, realize the coordinated reciprocating alternating gapless motion between the left and right hydraulic cylinders and the S-tube swing cylinder 6, and then realize the non-intermittent pumping of the wet spraying machine, thereby improving the wet spraying efficiency. The oil circuit integrated distributor is a hydraulic oil circuit circuit assembly as a whole, in which multiple oil circuit channels are arranged to coordinate the directional supply of hydraulic oil. The overall structure is simple and practical.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been described as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to the above-mentioned technical contents without departing from the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A hydraulic linkage control system for a fully hydraulic wet spraying machine, characterized in that: The invention comprises a hydraulic oil tank (1), a multi-way valve (2), an oil circuit integrated distributor (3), a left hydraulic oil cylinder (4) and a right hydraulic oil cylinder (5) for pushing the wet spraying machine to discharge materials, and an S-tube swing cylinder (6) for controlling the switching of the wet spraying machine delivery pipeline, wherein the oil outlet of the hydraulic oil tank (1) is connected to the oil inlet of the multi-way valve (2), the oil outlet of the multi-way valve (2) is connected to the main oil inlet hole (31) of the oil circuit integrated distributor (3), and the main oil inlet hole ( 31) is connected to the left hydraulic cylinder oil supply hole (32) in the oil circuit integrated distributor (3), and the left hydraulic cylinder oil supply hole (32) is connected to the left hydraulic cylinder (4). The front ends of the left hydraulic cylinder (4) and the right hydraulic cylinder (5) are both provided with an oil hole A and an oil hole B controlled by a signal controller (7). The oil hole A on the left hydraulic cylinder (4) is connected to the oil hole A on the right hydraulic cylinder (5), and the oil hole B on the left hydraulic cylinder (4) is connected to the oil hole A on the right hydraulic cylinder (5). The left hydraulic cylinder oil return hole (33) is connected to the left hydraulic cylinder oil return hole (33) on the oil circuit integrated distributor (3); the left hydraulic cylinder oil return hole (33) is connected to the left swing cylinder oil supply hole (34) in the oil circuit integrated distributor (3); the left swing cylinder oil supply hole (34) is connected to the left swing cylinder oil hole (61) of the S-tube swing cylinder (6); the right swing cylinder oil hole (62) of the S-tube swing cylinder (6) is connected to the right swing cylinder oil supply hole (35) in the oil circuit integrated distributor (3); The right swing cylinder oil supply hole (35) is connected to the right hydraulic cylinder oil supply hole (36) in the oil circuit integrated distributor (3), the right hydraulic cylinder oil supply hole (36) is connected to the right hydraulic cylinder (5), the oil hole B on the right hydraulic cylinder (5) is connected to the right hydraulic cylinder oil return hole (37) in the oil circuit integrated distributor (3), and the right hydraulic cylinder oil return hole (37) is connected to the right swing cylinder oil supply hole (35) in the oil circuit integrated distributor (3); The oil circuit integrated distributor (3) is also provided with a total oil return hole (38), the left hydraulic cylinder oil return hole (33) is connected to the oil return port of the total oil return hole (38), and the oil outlet of the total oil return hole (38) is connected to the oil return port on a multi-way valve (2); A one-way valve (8) is provided on the connecting pipeline between the left hydraulic cylinder oil supply hole (32) and the left hydraulic cylinder (4), and on the connecting pipeline between the right hydraulic cylinder oil supply hole (36) and the right hydraulic cylinder (5); A one-way valve (8) is provided on the connecting pipeline between the oil hole B in the left hydraulic cylinder (4) and the left hydraulic cylinder oil return hole (33).

2. A hydraulic linkage control system for a fully hydraulic wet spraying machine as claimed in claim 1, characterized in that: A one-way valve (8) is provided on the connecting pipeline between the right hydraulic cylinder oil return hole (37) and the right swing cylinder oil supply hole (35).

3. A hydraulic linkage control system for a fully hydraulic wet spraying machine as claimed in claim 1, characterized in that: A solenoid valve (9) controlled by a time relay is provided on the connecting pipeline between the left hydraulic cylinder oil return hole (33) and the main oil return hole (38).

4. A hydraulic linkage control system for a fully hydraulic wet spraying machine as claimed in claim 3, characterized in that: The opening and closing time of the solenoid valve (9) is the time taken for one cycle of reciprocating motion of the left hydraulic cylinder (4), the right hydraulic cylinder (5) and the S-tube swing cylinder (6).

5. A hydraulic linkage control system for a fully hydraulic wet spraying machine as claimed in claim 1, characterized in that: The signal controller (7) comprises a displacement sensor for monitoring the displacement degree of the piston in the hydraulic cylinder and an electromagnetic valve coordinated with the displacement sensor for controlling the opening and closing of the oil hole A and the oil hole B.

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