Output flow control device of quantitative hydraulic pump

Abstract

The utility model discloses an output flow control device of a quantitative hydraulic pump, which relates to the technical field of output flow control and comprises a flow control valve, an adjusting component is arranged at the top of the flow control valve, and a control valve core is fixedly mounted at the top of the adjusting component. The quantitative hydraulic pump output flow control device comprises a flow control valve and a control valve element, the control valve element is located in the flow control valve and rotationally connected with the inner wall of the flow control valve, an adjusting cushion is fixedly installed at the outer end of the control valve element, and a sealing frame is fixedly installed in the flow control valve. The adjusting cushion is clamped in the sealing groove, so that the sealing effect of a gap between the control valve element and the flow control valve is better, the sealing effect of the interior of the quantitative hydraulic pump is improved, a hydraulic system of a hydraulic shear is more stable, liquid leakage at the gap is prevented, and the use stability of the output flow control device of the quantitative hydraulic pump is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to output flow control technical field, concretely is a kind of quantitative hydraulic pump output flow control device. BACKGROUND

[0002] The main role of the quantitative hydraulic pump output flow control device inside the hydraulic system of hydraulic shears is to control the output flow of the hydraulic shears, and to ensure its stable operation. The quantitative hydraulic pump is a fixed displacement hydraulic pump, and its output flow will not change with the change of external conditions. This characteristic makes the quantitative pump very suitable for occasions that require stable flow output, such as the hydraulic system of hydraulic shears. In the hydraulic system of hydraulic shears, the quantitative hydraulic pump outputs stable flow through its fixed displacement, ensuring the stability and reliability of the shearing action.

[0003] Chinese patent CN202323333222.9 proposes a hydraulic pump with output flow control function. The device includes a hydraulic pump body, a transmission shaft is inserted into the side of the hydraulic pump body, the transmission shaft is rotatably connected with the hydraulic pump body, a control assembly is provided on the top side of the hydraulic pump body, a display assembly is provided on the side of the hydraulic pump body, the control assembly includes a rotating wheel and a housing, a slide rod is fixedly connected to the inner side of the housing, one end of a threaded rod penetrating through the housing is fixedly connected with the rotating wheel, an L-shaped plate is threadedly connected with the threaded rod, and a hydraulic power assembly is provided on the lower side of the L-shaped plate. By rotating the rotating wheel, the threaded rod fixedly connected with the rotating wheel can be rotated. The inclination angle of the swash plate can be achieved by adjusting the thread length of the threaded rod. The inclination angle of the swash plate affects the output flow of the hydraulic pump, thereby playing a role in regulating the flow of the hydraulic pump.

[0004] However, the output flow control function in the above-mentioned scheme only relies on the sealing of the gap by the sealing gasket, and does not have a structure for cooperating with the sealing gasket. Moreover, during the adjustment process, the valve core is easily damaged by friction, which also affects the sealing effect. The gap between the sealing gasket is prone to water leakage, which affects the stability of the hydraulic shears. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a quantitative hydraulic pump output flow control device to solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a quantitative hydraulic pump output flow control device, comprising a flow control valve, an adjusting assembly is provided on the top of the flow control valve, a control valve core is fixedly installed on the top of the adjusting assembly, and the control valve core is located inside the flow control valve and rotatably connected with the inner wall.

[0007] The outer end of the control valve core is fixedly installed with an adjusting soft pad, the inside of the flow control valve is fixedly installed with a sealing frame, and the two sides of the sealing frame are symmetrically provided with inclined angles.

[0008] Preferably, the flow control valve is symmetrically provided with mounting assemblies on the two sides, and a replacement assembly is arranged between the two mounting assemblies.

[0009] Preferably, the adjusting assembly comprises a mounting shell, the mounting shell is fixedly installed at the bottom of the flow control valve, the inner wall of the mounting shell is fixedly installed with a driving motor, and the output end of the driving motor is fixedly installed with a pinion.

[0010] Preferably, one side of the pinion is rotatably connected with a large gear, the large gear and the pinion are rotatably connected with the inner wall of the mounting shell, the bottom of the large gear is fixedly installed with a connecting shaft, and the connecting shaft extends to the inner wall of the flow control valve and is fixedly connected with the control valve core.

[0011] Preferably, the mounting assembly comprises a circular ring mounting plate, the two circular ring mounting plates are symmetrically fixedly installed on the two sides of the flow control valve, and a plurality of mounting holes are formed through the local parts of the two circular ring mounting plates.

[0012] Preferably, the inside of each mounting hole is penetrated by an expansion bolt, one side of each of the two circular ring mounting plates is provided with a receiving groove, and the inside of each receiving groove is movably connected with a sealing pad.

[0013] Preferably, the replacement assembly comprises an iron sheet, each iron sheet is fixedly installed on the inner side of the sealing pad, one side of each iron sheet is movably connected with a magnetic attraction piece, and the magnetic attraction piece is fixedly connected with the inner wall of the receiving groove.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1、The control valve core, the adjusting soft pad, the sealing frame, the inclined angle and the sealing groove are arranged, the adjusting soft pad is clamped in the inside of the sealing groove, the gap sealing effect between the control valve core and the flow control valve is better, the sealing effect inside the quantitative hydraulic pump is increased, the hydraulic system of the hydraulic shear is more stable, liquid leakage at the gap is prevented, and the use stability of the quantitative hydraulic pump output flow control device is improved.

[0016] 2、The mounting assembly is arranged, the mounting assembly facilitates the connection of the quantitative hydraulic pump and the output flow control device, the expansion bolts are used in the scheme, the mounting is more firm, the mounting and dismounting are facilitated, and the mounting firmness of the quantitative hydraulic pump output flow control device is improved.

[0017] 3. By setting up an adjustment component, this application uses a small gear to drive a large gear to rotate, making the rotation more stable, thereby making the adjustment more stable and extending the service life of the equipment. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the overall front view and cross-section of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation component of this utility model;

[0022] Figure 5 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0023] The following components are labeled in the diagram: 1. Flow control valve; 2. Adjustment assembly; 21. Mounting housing; 22. Drive motor; 23. Pinion gear; 24. Gear; 25. Connecting shaft; 3. Control valve core; 4. Adjusting pad; 5. Sealing frame; 6. Angled; 7. Sealing groove; 8. Mounting assembly; 81. Circular mounting plate; 82. Mounting hole; 83. Expansion bolt; 84. Storage slot; 85. Sealing gasket; 9. Replacement assembly; 91. Iron sheet; 92. Magnetic attachment. 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. 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.

[0025] Example: Figure 1 - Figure 5 As shown, this utility model provides a quantitative hydraulic pump output flow control device, including a flow control valve 1, an adjustment component 2 is provided on the top of the flow control valve 1, and a control valve core 3 is fixedly installed on the top of the adjustment component 2. The control valve core 3 is located inside the flow control valve 1 and is rotatably connected to the inner wall.

[0026] The outer end of the control valve core 3 is fixedly installed with an adjusting soft pad 4, the inside of the flow control valve 1 is fixedly installed with a sealing frame 5, the two sides of the sealing frame 5 are symmetrically provided with inclined angles 6, the inclined angles 6 facilitate adjusting the adjusting soft pad 4 to the inside of the sealing frame 5, play an auxiliary role, the inside of the sealing frame 5 is provided with a sealing groove 7, the sealing groove 7 and the adjusting soft pad 4 are size-adapted, the two sides of the flow control valve 1 are symmetrically provided with mounting assemblies 8, and the two mounting assemblies 8 are provided with a replacement assembly 9.

[0027] The adjusting assembly 2 drives the control valve core 3 to adjust, the control valve core 3 drives the adjusting soft pad 4 to rotate, and the adjusting soft pad 4 is adjusted to the inside of the sealing groove 7 by the inclined angles 6 on the two sides of the sealing frame 5, thereby sealing the gap.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3 , the adjusting assembly 2 comprises a mounting shell 21, the outer end of the mounting shell 21 is provided with a heat dissipation net, which facilitates heat dissipation of the inside of the mounting shell 21, the mounting shell 21 is fixedly installed at the bottom of the flow control valve 1, the inner wall of the mounting shell 21 is fixedly installed with a drive motor 22, the output end of the drive motor 22 is fixedly installed with a pinion 23, one side of the pinion 23 is meshingly connected with a gear wheel 24, the gear wheel 24 and the pinion 23 are both rotationally connected with the inner wall of the mounting shell 21, the bottom of the gear wheel 24 is fixedly installed with a connecting shaft 25, and the connecting shaft 25 extends to the inner wall of the flow control valve 1 and is fixedly connected with the control valve core 3.

[0029] The drive motor 22 drives the pinion 23 to rotate, the pinion 23 drives the gear wheel 24 to rotate, the gear wheel 24 drives the connecting shaft 25 to rotate, and the connecting shaft 25 drives the control valve core 3 to rotate in the inside of the sealing frame 5.

[0030] Please refer to Figure 1 , Figure 2 and Figure 4 , the mounting assembly 8 comprises a circular ring mounting plate 81, two circular ring mounting plates 81 are symmetrically fixedly installed on the two sides of the flow control valve 1, and a plurality of mounting holes 82 are through- formed in part of each of the two circular ring mounting plates 81, an expansion bolt 83 is through- formed in the inside of each mounting hole 82, the expansion bolt 83 is based on wedge-shaped slope design and friction self-locking mechanism, and stable fixing effect is realized through the action of mechanical force, a receiving groove 84 is formed on one side of each of the two circular ring mounting plates 81, and a sealing pad 85 is movably connected in the inside of each receiving groove 84, the sealing pad 85 is made of silica gel, and the side of the quantitative hydraulic pump pipeline also has a sealing pad 85, and the two sealing pads 85 seal the connection.

[0031] The quantitative hydraulic pump pipeline is connected with one side of the circular mounting plate 81, the expansion bolt 83 penetrates the circular mounting plate 81 and the quantitative hydraulic pump pipeline, in the state that the expansion bolt 83 is kept unscrewed, the expansion sleeve is also inserted into the same drilling hole, then the expansion bolt 83 is screwed, at this time, the expansion sleeve will gradually expand and finally firmly clamped in the hole wall.

[0032] Please refer to Figure 1 , Figure 4 and Figure 5 , the replacement assembly 9 comprises an iron sheet 91, each iron sheet 91 is fixedly installed on the inner side of the sealing gasket 85, and one side of each iron sheet 91 is movably connected with a magnetic attraction piece 92, and the magnetic attraction piece 92 is fixedly connected with the inner wall of the receiving groove 84.

[0033] The sealing gasket 85 is clamped in the inside of the receiving groove 84, and is fixed by the attraction between the iron sheet 91 and the magnetic attraction piece 92.

[0034] Working principle: the staff clamps the sealing gasket 85 in the inside of the receiving groove 84, and is fixed by the attraction between the iron sheet 91 and the magnetic attraction piece 92, then the quantitative hydraulic pump pipeline is connected with one side of the circular mounting plate 81, the expansion bolt 83 penetrates the circular mounting plate 81 and the quantitative hydraulic pump pipeline, in the state that the expansion bolt 83 is kept unscrewed, the expansion sleeve is also inserted into the same drilling hole, then the expansion bolt 83 is screwed, at this time, the expansion sleeve will gradually expand and finally firmly clamped in the hole wall, when the hydraulic shear is not used, the driving motor 22 is started to drive the pinion gear 23 to rotate, the pinion gear 23 drives the gear wheel 24 to rotate, the gear wheel 24 drives the connecting shaft 25 to rotate, and then the connecting shaft 25 drives the control valve core 3 to rotate in the inside of the sealing frame 5, the control valve core 3 drives the adjusting soft pad 4 to rotate, and the adjusting soft pad 4 is adjusted to the inside of the sealing groove 7 by the inclined angle 6 on both sides of the sealing frame 5, and the gap is sealed.

[0035] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A quantitative hydraulic pump output flow control device, characterized by: Including flow control valve (1), the top of flow control valve (1) is provided with adjusting assembly (2), the top of adjusting assembly (2) is fixedly installed with control valve core (3), control valve core (3) is located inside flow control valve (1) and is rotatably connected with inner wall; The outer end of control valve core (3) is fixedly installed with adjusting soft pad (4), the inside of flow control valve (1) is fixedly installed with sealing frame (5), the both sides of sealing frame (5) are symmetrically provided with inclined angle (6), and sealing groove (7) is formed in the inside of sealing frame (5).

2. A device for controlling the output flow of a constant-displacement hydraulic pump according to claim 1, characterized in that: The both sides of flow control valve (1) are symmetrically provided with mounting assembly (8), and replacement assembly (9) is arranged between the two mounting assemblies (8).

3. A device for controlling the output flow of a constant-displacement hydraulic pump according to claim 1, characterized in that: The adjusting assembly (2) comprises a mounting shell (21) fixedly installed at the bottom of the flow control valve (1), and a drive motor (22) fixedly installed on the inner wall of the mounting shell (21).

4. A device for controlling the output flow of a constant-displacement hydraulic pump according to claim 3, characterized in that: The output end of the drive motor (22) is fixedly installed with a pinion gear (23), and the one side of the pinion gear (23) is meshed with a large gear (24) rotatably connected with the inner wall of the mounting shell (21).

5. A device for controlling the output flow of a constant-displacement hydraulic pump according to claim 2, characterized in that: The bottom of the large gear (24) is fixedly installed with a connecting shaft (25) extending to the inner wall of the flow control valve (1) and fixedly connected with the control valve core (3).

6. A device for controlling the output flow of a constant-displacement hydraulic pump according to claim 5, characterized in that: The mounting assembly (8) comprises a circular ring mounting plate (81), and the two circular ring mounting plates (81) are symmetrically fixedly installed on the both sides of the flow control valve (1), and a plurality of mounting holes (82) are formed in the partial portions of the two circular ring mounting plates (81).

7. A device for controlling the output flow of a constant-displacement hydraulic pump according to claim 2, characterized in that: The inside of each mounting hole (82) is penetrated by an expansion bolt (83), and the one side of each circular ring mounting plate (81) is provided with a receiving groove (84), and the inside of each receiving groove (84) is movably connected with a sealing pad (85). The replacement assembly (9) comprises an iron sheet (91), each iron sheet (91) is fixedly installed on the inside of the sealing pad (85), and the one side of each iron sheet (91) is movably connected with a magnetic member (92) fixedly connected with the inner wall of the receiving groove (84).

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