Lever type reversing mechanism of hydraulic grouting pump

Abstract

The utility model discloses a hydraulic grouting pump lever type reversing mechanism, and relates to the technical field of grouting pump technology, the hydraulic grouting pump lever type reversing mechanism comprises a reversing base and a deflector rod, an equipment supporting plate is arranged right above the reversing base, a distance adjusting mechanism is arranged right above the equipment supporting plate, and the distance adjusting mechanism is arranged right above the deflector rod. The distance adjusting mechanism adjusts the distance of the positioning range of the oil cylinder according to the specification of the oil cylinder, the requirement for reversing and control accuracy of the oil cylinders of different sizes is met, a steering mechanism is arranged in the reversing base, and the steering mechanism enables the oil cylinder to directly impact the shifting rod through a shifting disc after the oil cylinder does not reach the head by adjusting the inclination of the shifting rod. And the valve core is forcibly pushed to reverse. In the using process, the distance between the two sets of oil cylinder bases is indirectly adjusted according to the specifications of the oil cylinders, then the bottom ends of the oil cylinders of different lengths are positioned, and the requirement for the disassembly and replacement efficiency of the oil cylinders of different sizes is met.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting pump technology, in particular to a lever-type reversing mechanism for a hydraulic grouting pump. Background Art

[0002] When the grouting pump is working, the main hydraulic cylinder reciprocates to push the slurry cylinder, and the slurry is transported through the suction and discharge valves. The reciprocating motion of the main hydraulic cylinder needs to be achieved through the steering mechanism. Whether the hydraulic grouting pump cylinder can reliably reciprocate determines the quality of the hydraulic grouting pump.

[0003] Traditional early reversing of the cylinder is achieved by adjusting the inclination of the lever so that the cylinder directly relies on the dial to hit the lever before it reaches the end, forcing the valve core to change direction. However, there are differences in the specifications of the cylinders, and a single rotation angle cannot meet the reversing requirements of cylinders of different specifications, which results in the inability to effectively reversing cylinders of different specifications during actual use. Summary of the invention

[0004] The utility model aims to provide a lever-type reversing mechanism for a hydraulic grouting pump to solve the above-mentioned defects caused by the prior art.

[0005] The lever-type reversing mechanism of a hydraulic grouting pump comprises a reversing base and a shifting rod. An equipment support plate is arranged directly above the reversing base. A distance adjusting mechanism is arranged directly above the equipment support plate. The distance adjusting mechanism adjusts the positioning range of the oil cylinder according to the specifications of the oil cylinder to meet the accuracy of reversing and control of oil cylinders of different sizes. A steering mechanism is arranged inside the reversing base. The steering mechanism adjusts the inclination of the shifting rod so that the oil cylinder directly relies on the dial to hit the shifting rod after it has not reached the end, thereby forcing the valve core to be reversing.

[0006] Preferably, the distance adjustment mechanism includes an equipment support plate, a cylinder seat, fasteners, guide rods, a ball screw and a side positioning seat. The guide rods are symmetrically distributed on the top of the equipment support plate, and the guide rods are connected through the cylinder seat. Fasteners are connected through the top of the cylinder seat at equal intervals. The ball screws are symmetrically arranged inside the reversing base, and the ball screws are connected through the side positioning seat.

[0007] Preferably, the ball screw is connected to one side of the bearing seat through a side positioning seat that is arranged through the ball screw.

[0008] Preferably, the steering mechanism includes a push rod, a bearing seat, a shift lever, a dial, a reversing valve, a push rod and a spring column. The push rod is arranged on both sides of the reversing base, a spring column is arranged inside the push rod, one side of the spring column is connected to the push rod, the push rod is symmetrically arranged on both sides of the reversing valve, the reversing valve is arranged inside the reversing base, one side of the shift lever is connected to the dial, and the bearing seat is symmetrically arranged on both sides of the reversing base.

[0009] Preferably, the push rod is connected to one side of the dial through a lever arranged on one side.

[0010] Preferably, the push rod is connected to one end of the push rod via a spring column arranged inside.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. During use, the distance of the two groups of cylinder seats is indirectly adjusted according to the specifications of the cylinder, and then the bottom ends of the cylinders of different lengths are positioned to meet the efficiency of disassembly and replacement of cylinders of different sizes. During use, the range of motion of the lever is controlled, and one side of the bearing seat is positioned through the ball screw, and the bearing seat is vertically positioned according to the process and specifications of the cylinder, and the bearing is connected to one side of the lever through the bearing seat to control the rotation range of the lever.

[0013] 2. By setting the spring column, the impact force of the equipment during the extension and retraction process is reduced to avoid the valve core or push rod being damaged due to excessive inertia of the piston rod, which greatly improves the service life of the cylinder piston rod and the cylinder cover and reduces the vibration and impact of the equipment during reversing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the front section structure of the reversing base in the utility model.

[0016] Figure 3 It is a schematic diagram of the top-sectional structure of the reversing base in the utility model.

[0017] Figure 4 It is a structural schematic diagram of the oil cylinder seat itself in the utility model.

[0018] in:

[0019] 1. Reversing base; 2. Equipment support plate; 3. Distance adjustment mechanism; 4. Cylinder seat; 5. Fasteners; 6. Push rod; 7. Steering mechanism; 8. Bearing seat; 9. Push rod; 10. Dial; 11. Reversing valve; 12. Push rod; 13. Guide rod; 14. Ball screw; 15. Side positioning seat; 16. Spring column. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figures 1 to 4 As shown, the lever-type reversing mechanism of the hydraulic grouting pump includes a reversing base 1 and a lever 9. An equipment support plate 2 is arranged directly above the reversing base 1. A distance adjustment mechanism 3 is arranged directly above the equipment support plate 2. The distance adjustment mechanism 3 adjusts the positioning range of the oil cylinder according to the specifications of the oil cylinder to meet the accuracy of reversing and control of oil cylinders of different sizes. A steering mechanism 7 is arranged inside the reversing base 1. The steering mechanism 7 adjusts the inclination of the lever 9 so that the oil cylinder directly relies on the dial 10 to hit the lever 9 after it has not reached the end, thereby forcing the valve core to reverse.

[0022] In this embodiment, the distance adjustment mechanism 3 includes an equipment support plate 2, a cylinder seat 4, a fastener 5, a guide rod 13, a ball screw 14 and a side positioning seat 15. The guide rods 13 are symmetrically distributed on the top of the equipment support plate 2, and the guide rods 13 are connected through the cylinder seat 4. The top of the cylinder seat 4 is evenly spaced through the fasteners 5. The ball screw 14 is symmetrically arranged inside the reversing base 1, and the ball screw 14 is connected through the side positioning seat 15. By controlling the range of movement of the cylinder seat 4, cylinders of different sizes can be supported and positioned.

[0023] In this embodiment, the ball screw 14 is connected to one side of the bearing seat 8 through a side positioning seat 15 that is arranged therethrough. The position of the side positioning seat 15 is adjusted by the ball screw 14 to meet the flexibility of adjusting and controlling at different angles.

[0024] In this embodiment, the steering mechanism 7 includes a push rod 6, a bearing seat 8, a lever 9, a dial 10, a reversing valve 11, a push rod 12 and a spring column 16. The push rod 6 is arranged on both sides of the reversing base 1. The spring column 16 is arranged inside the push rod 6. One side of the spring column 16 is connected to the push rod 12. The push rod 12 is symmetrically arranged on both sides of the reversing valve 11. The reversing valve 11 is arranged inside the reversing base 1. One side of the lever 9 is connected to the dial 10. The bearing seat 8 is symmetrically arranged on both sides of the reversing base 1.

[0025] In this embodiment, the push rod 6 is connected to one side of the dial 10 through a lever 9 provided on one side, and the dial 10 is driven to move by the lever 9 to stretch and reverse one side of the piston rod of the master cylinder.

[0026] In this embodiment, the push rod 6 is connected to one end of the push rod 12 via an internally arranged spring column 16. The spring column 16 reduces the pushing force to avoid excessive force causing increased wear on the equipment.

[0027] This hydraulic grouting pump lever reversing mechanism includes the following work contents in practical application:

[0028] Step 1: During use, first hold the oil cylinder seats 4 arranged on both sides, so that the two groups of symmetrically arranged oil cylinder seats 4 slide on the outside of the guide rod 13, adjust the distance between the two groups of oil cylinder seats 4, and install the oil cylinder just above the oil cylinder seat 4, and position the oil cylinder seat 4 and the oil cylinder arranged above by fasteners 5, so as to meet the positioning of the oil cylinder, and connect the piston rod arranged at the output end of the oil cylinder to one side of the dial 10;

[0029] Step 2: The operator then holds the ball screw 14 according to the expansion distance of the piston rod of the oil cylinder, uses the ball screw 14 to vertically lift the side positioning seat 15, adjusts the height of the side positioning seat 15, and uses the side positioning seat 15 to correspond to one side of the lever 9, and uses the shaft to connect the side positioning seat 15 and the lever 9 to adjust and control the rotation angle range of the lever 9;

[0030] Step 3: The two ends of the piston rod 11 of the master oil cylinder 1 are connected to the push rods 12 at both ends of the reversing valve 11 through the dial 10 and the lever 9 of the lever structure. The reversing valve 11 includes a valve core arranged in the inner cavity of the reversing valve, so that when the valve core is reversing, the limiting steel ball is embedded in the positioning groove or the limiting groove under the action of the spring. The reversing stroke of the existing reversing valve 11 is 6mm, that is, the reversing of the entire system can be completed when the valve core is displaced by 6mm;

[0031] Step 4: When the push rod 12 moves laterally, the impact force generated is mitigated by the spring column 16 arranged inside the push rod 6, and then the push rod 6 pushes the lever 9 arranged on one side, and the bearing seat 8 arranged on one side of the lever 9 is rotated, and then the angle of the dial 10 is adjusted and tilted to meet the control and reversing processing of oil cylinders of different specifications.

[0032] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. Hydraulic grouting pump lever reversing mechanism, characterized by: The invention comprises a reversing base (1) and a lever (9); a device support plate (2) is arranged directly above the reversing base (1); a distance adjustment mechanism (3) is arranged directly above the device support plate (2); the distance adjustment mechanism (3) adjusts the distance of the positioning range of the oil cylinder according to the specifications of the oil cylinder to meet the accuracy of reversing and controlling oil cylinders of different sizes; a steering mechanism (7) is arranged inside the reversing base (1); the steering mechanism (7) adjusts the inclination of the lever (9) so that the oil cylinder directly relies on a dial (10) to hit the lever (9) after it has not reached the end, thereby forcing the valve core to be reversing.

2. The lever-type reversing mechanism of the hydraulic grouting pump according to claim 1 is characterized in that: The distance adjustment mechanism (3) comprises an equipment support plate (2), a cylinder seat (4), a fastener (5), a guide rod (13), a ball screw (14) and a side positioning seat (15). The guide rods (13) are symmetrically distributed on the upper surface of the equipment support plate (2). The guide rods (13) are connected through the cylinder seat (4). The top of the cylinder seat (4) is connected through the fastener (5) at equal intervals. The ball screw (14) is symmetrically arranged inside the reversing base (1). The ball screw (14) is connected through the side positioning seat (15).

3. The lever-type reversing mechanism of the hydraulic grouting pump according to claim 2 is characterized in that: The ball screw (14) is connected to one side of the bearing seat (8) via a side positioning seat (15) that is arranged through the ball screw.

4. The lever-type reversing mechanism of the hydraulic grouting pump according to claim 1 is characterized in that: The steering mechanism (7) comprises a push rod (6), a bearing seat (8), a shifting rod (9), a dial (10), a reversing valve (11), a push rod (12) and a spring column (16); the push rod (6) is arranged on both sides of the reversing base (1); a spring column (16) is arranged inside the push rod (6); one side of the spring column (16) is connected to the push rod (12); the push rod (12) is symmetrically arranged on both sides of the reversing valve (11); the reversing valve (11) is arranged inside the reversing base (1); one side of the shifting rod (9) is connected to the dial (10); and the bearing seat (8) is symmetrically arranged on both sides of the reversing base (1).

5. The lever-type reversing mechanism of the hydraulic grouting pump according to claim 4 is characterized in that: The push rod (6) is connected to one side of the dial (10) via a lever (9) arranged on one side.

6. The lever-type reversing mechanism of the hydraulic grouting pump according to claim 4, characterized in that: The push rod (6) is connected to one end of the push rod (12) via a spring column (16) arranged inside.

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