High-pressure small-displacement gear pump hydraulic device

Abstract

The utility model provides a high-pressure small-displacement gear pump hydraulic device. The high-pressure small-displacement gear pump hydraulic device comprises a supporting table and a first pump body, a limiting groove is formed in the top of the supporting table, a sliding block is movably connected into the limiting groove in a sleeved mode, and a second pump body is fixedly connected to the top of the sliding block. According to the high-pressure small-displacement gear pump hydraulic device, by arranging the connecting sleeve, when a gear pump is installed and used, a sliding block is connected into a limiting groove in a sleeved mode, so that the sliding block can limit and fix a second pump body to the top of the supporting table through the limiting groove, at the moment, the connecting sleeve is rotated, and the second pump body is fixed to the top of the supporting table; and the connecting sleeve can drive the first connecting pipe to be fixedly connected to one end of the second connecting pipe in a sleeving mode, so that the connecting effect of the first pump body and the second pump body is achieved, the liquid conveying pressure intensity of the first pump body and the second pump body is greatly improved, the power of the gear pump is improved, and therefore the practical effect of the gear pump is improved.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic devices, in particular to a high-pressure small-displacement gear pump hydraulic device. Background Art

[0002] A gear pump is a rotary pump that relies on the change and movement of the working volume formed between the pump cylinder and the meshing gear to transport or pressurize a liquid. There are many types of existing gear pumps, but there are still some deficiencies.

[0003] In the existing technology, such as the "small-displacement high-pressure gear pump" with the Chinese authorization publication number: CN217233788U, which includes a connection base, a high-pressure gear pump body, and a protective connection plate; the high-pressure gear pump body is arranged on the top of the connection base, and the protective connection plate is arranged on the outside of the high-pressure gear pump body; it further includes: the outside of the high-pressure gear pump body is connected to the inner wall of the connection tooth plate through a first connection spring, and the inner wall of the support rack seat is connected to the fixed support rod through a second connection spring; an accommodation groove is opened inside the connection base. In this small-displacement high-pressure gear pump, a connection tooth plate is provided. During the process of the high-pressure gear pump body driving the support rack seat to vibrate, the support rack seat will drive the protective connection plate to rotate at a certain angle through the connection tooth plates meshed on the left and right sides, which will provide a certain degree of shock absorption for the high-pressure gear pump body and play a certain protective role, facilitating the use of the high-pressure gear pump body.

[0004] When installing and using a gear pump in the existing technology, due to the limited pressure of the gear infusion pump, it is difficult for a single gear pump to drive a larger hydraulic cylinder, resulting in a great limitation in the use range of a single gear pump.

[0005] Therefore, it is necessary to provide a high-pressure small-displacement gear pump hydraulic device to solve the above technical problems. Summary of the Utility Model

[0006] The utility model provides a high-pressure small-displacement gear pump hydraulic device, which solves the problem that due to the limited lift of the gear pump, it is difficult for a single gear pump to transport liquid to a higher position, resulting in a great limitation in the use range of a single gear pump.

[0007] To solve the above technical problems, a hydraulic device of a high-pressure small-displacement gear pump provided by the utility model includes a support platform and a first pump body. A limit groove is formed at the top of the support platform. A sliding block is movably sleeved inside the limit groove. A second pump body is fixedly connected to the top of the sliding block. A rotary motor is fixedly installed outside the second pump body. A driving gear is fixedly sleeved on the output shaft of the rotary motor. A first connecting pipe is fixedly sleeved on the side of the first pump body. A snap ring is fixedly sleeved at one end of the first connecting pipe. A second connecting pipe is fixedly sleeved on the side of the second pump body. A connecting sleeve is movably sleeved at one end of the first connecting pipe. A sliding ball is movably sleeved at the bottom of the inner cavity of the limit groove. A heat sink is fixedly connected to the outside of the rotary motor. A liquid storage cover is fixedly sleeved on the top of the second pump body. A top cover is threadedly sleeved on the top of the liquid storage cover. A filter screen is fixedly sleeved inside the liquid storage cover. A sealing ring is fixedly sleeved at one end of the first connecting pipe. A moving mechanism is arranged at the bottom of the support platform.

[0008] Preferably, the connecting sleeve is threadedly sleeved at one end of the second connecting pipe, and the connecting sleeve is perpendicular to the first pump body.

[0009] Preferably, the number of the sliding balls is several, and several sliding balls are evenly distributed at the bottom of the inner cavity of the limit groove.

[0010] Preferably, the heat sink is made of aluminum metal material, and the number of the heat sinks is several.

[0011] Preferably, the front shape of the liquid storage cover is conical, and the liquid storage cover is directly above the driving gear.

[0012] Preferably, the filter screen is adapted to the liquid storage cover, and the filter screen is made of stainless steel material.

[0013] Preferably, the sealing ring is tightly pressed at one end of the second connecting pipe, and the sealing ring is made of rubber material.

[0014] Preferably, the moving mechanism includes support columns. The support columns are fixedly connected to the bottom of the support platform, and sliding wheels are installed at the bottoms of the support columns.

[0015] Compared with the related art, a hydraulic device of a high-pressure small-displacement gear pump provided by the utility model has the following beneficial effects:

[0016] The utility model provides a high-pressure small-displacement gear pump hydraulic device. By setting a connecting sleeve, when installing and using the gear pump, the sliding block is sleeved inside the limiting groove, so that the sliding block can limit and fix the second pump body on the top of the support platform through the limiting groove. At this time, the connecting sleeve is rotated, so that the connecting sleeve can drive the first connecting pipe to be fixedly sleeved at one end of the second connecting pipe, thus achieving the connection effect between the first pump body and the second pump body, enabling the first pump body and the second pump body to greatly improve the liquid delivery pressure, that is, improving the power of the gear pump, and thus improving the practical effect of the gear pump;

[0017] By setting a liquid storage cover, when using the gear pump, hydraulic oil is injected into the liquid storage cover, so that the liquid storage cover can inject water flow into the second pump body, so that the water flow can fill the gaps inside the second pump body, thereby improving the sealing performance when the driving gear rotates, and thus bringing convenience to the long-distance transportation of liquid, that is, bringing convenience to the use of the gear pump. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a preferred embodiment of a high-pressure small-displacement gear pump hydraulic device provided by the utility model;

[0019] Figure 2 is Figure 1 The front view of the support platform in a high-pressure small-displacement gear pump hydraulic device shown;

[0020] Figure 3 is Figure 1 The cross-sectional view of the connecting sleeve in a high-pressure small-displacement gear pump hydraulic device shown;

[0021] Figure 4 is Figure 1 The cross-sectional view of the liquid storage cover in a high-pressure small-displacement gear pump hydraulic device shown.

[0022] Reference numerals in the figure: 1, support platform; 2, first pump body; 3, limiting groove; 4, sliding block; 5, second pump body; 6, rotating motor; 7, driving gear; 8, first connecting pipe; 9, snap ring; 10, second connecting pipe; 11, connecting sleeve; 12, sliding ball; 13, heat sink; 14, liquid storage cover; 15, top cover; 16, filter screen; 17, sealing ring; 18, moving mechanism; 181, support column; 182, sliding wheel. Detailed Embodiment

[0023] The following further explains the present utility model in conjunction with the drawings and embodiments.

[0024] Please refer to in conjunction with Figure 1 , Figure 2 , Figure 3 , Figure 4 , wherein,Figure 1 Schematic diagram of a preferred embodiment of a high-pressure small-displacement gear pump hydraulic device provided by the present utility model; Figure 2 For Figure 1 Front view of the support platform in a high-pressure small-displacement gear pump hydraulic device as shown; Figure 3 For Figure 1 Cross-sectional view of the connecting sleeve in a high-pressure small-displacement gear pump hydraulic device as shown; Figure 4 For Figure 1 Cross-sectional view of the liquid storage cover in a high-pressure small-displacement gear pump hydraulic device as shown. A high-pressure small-displacement gear pump hydraulic device includes a support platform 1 and a first pump body 2. A limit groove 3 is opened at the top of the support platform 1. A sliding block 4 is movably sleeved inside the limit groove 3. A second pump body 5 is fixedly connected to the top of the sliding block 4. A rotary motor 6 is fixedly installed outside the second pump body 5. A driving gear 7 is fixedly sleeved on the output shaft of the rotary motor 6. A first connecting pipe 8 is fixedly sleeved on the side of the first pump body 2. A snap ring 9 is fixedly sleeved at one end of the first connecting pipe 8. A second connecting pipe 10 is fixedly sleeved on the side of the second pump body 5. One end of the first connecting pipe 8 is movably sleeved with a connecting sleeve 11. A sliding ball 12 is movably sleeved at the bottom of the inner cavity of the limit groove 3. A heat sink 13 is fixedly connected to the outside of the rotary motor 6. A liquid storage cover 14 is fixedly sleeved on the top of the second pump body 5. A top cover 15 is threadedly sleeved on the top of the liquid storage cover 14. A filter screen 16 is fixedly sleeved inside the liquid storage cover 14. A sealing ring 17 is fixedly sleeved at one end of the first connecting pipe 8. A moving mechanism 18 is arranged at the bottom of the support platform 1.

[0025] The connecting sleeve 11 is threadedly sleeved at one end of the second connecting pipe 10, and the connecting sleeve 11 is perpendicular to the first pump body 2; by setting the connecting sleeve 11, when installing and using the gear pump, the sliding block 4 is sleeved inside the limit groove 3, so that the sliding block 4 can limit and fix the second pump body 5 on the top of the support platform 1 through the limit groove 3. At this time, rotate the connecting sleeve 11, so that the connecting sleeve 11 can drive the first connecting pipe 8 to be fixedly sleeved at one end of the second connecting pipe 10, thereby achieving the connection effect between the first pump body 2 and the second pump body 5, so that the first pump body 2 and the second pump body 5 greatly improve the liquid delivery pressure, that is, improve the power of the gear pump, thereby improving the practical effect of the gear pump.

[0026] The number of the sliding balls 12 is several, and several sliding balls 12 are evenly distributed at the bottom of the inner cavity of the limit groove 3; by setting the sliding balls 12, when installing and fixing the second pump body 5, the sliding balls 12 can support and limit the horizontally moving sliding block 4, so as to avoid the problem of friction between the sliding block 4 and the bottom of the inner cavity of the limit groove 3 during horizontal movement, thereby improving the smoothness of the horizontal movement of the second pump body 5.

[0027] The material of the heat sink 13 is aluminum metal, and the number of heat sinks 13 is several. By providing the heat sink 13, when the gear pump works for a long time, several heat sinks 13 can absorb the heat inside the rotating motor 6 and then discharge it outside the rotating motor 6, thus greatly improving the heat dissipation speed of the rotating motor 6, that is, improving the stability of the gear pump during long-term operation.

[0028] The front shape of the liquid storage cover 14 is conical, and the liquid storage cover 14 is located directly above the driving gear 7. By providing the liquid storage cover 14, when the gear pump is in use, hydraulic oil is injected into the inside of the liquid storage cover 14, so that the liquid storage cover 14 can inject water flow into the inside of the second pump body 5, thereby enabling the water flow to fill the gaps inside the second pump body 5, and further improving the sealing performance when the driving gear 7 rotates, thus bringing convenience to the long-distance transportation of liquids, that is, bringing convenience to the use of the gear pump.

[0029] The filter screen 16 is adapted to the liquid storage cover 14, and the material of the filter screen 16 is stainless steel. By providing the filter screen 16, when the water flow is filled, the filter screen 16 can filter the hydraulic oil inside the liquid storage cover 14, avoiding the problem that impurities in the hydraulic oil enter the inside of the second pump body 5 along with the water flow and are difficult to clean, thus improving the cleanliness inside the second pump body 5.

[0030] The sealing ring 17 is tightly pressed at one end of the second connecting pipe 10, and the material of the sealing ring 17 is rubber. By providing the sealing ring 17, when the first connecting pipe 8 and the second connecting pipe 10 are connected and fixed, the sealing ring 17 can be filled inside the connecting sleeve 11, thereby improving the sealing performance after the first connecting pipe 8 and the second connecting pipe 10 are connected.

[0031] The moving mechanism 18 includes a support column 181, the support column 181 is fixedly connected to the bottom of the support platform 1, and a sliding wheel 182 is installed at the bottom of the support column 181. By providing the moving mechanism 18, when the hydraulic device is moved and transported, the support platform 1 is pushed, so that the sliding wheel 182 can drive the support platform 1 to move horizontally through the support column 181, that is, drive the first pump body 2 to move horizontally, thus achieving the effect of moving and transporting the gear pump hydraulic device, and further bringing convenience to the adjustment of the working position of the gear pump hydraulic device.

[0032] The working principle of a high-pressure small-displacement gear pump hydraulic device provided by the present utility model is as follows:

[0033] Step 1: First, when installing and using the gear pump, sleeve the sliding block 4 inside the limiting groove 3, so that the sliding block 4 can limit and fix the second pump body 5 on the top of the support platform 1 through the limiting groove 3. At this time, rotate the connecting sleeve 11, so that the connecting sleeve 11 can drive the first connecting pipe 8 to be fixedly sleeved at one end of the second connecting pipe 10, thus achieving the connection effect between the first pump body 2 and the second pump body 5, enabling the first pump body 2 and the second pump body 5 to greatly increase the liquid delivery pressure, that is, improving the power of the gear pump, thereby enhancing the practical effect of the gear pump. When installing and fixing the second pump body 5, the sliding ball 12 can support and limit the horizontally moving sliding block 4, avoiding the problem of friction between the sliding block 4 and the bottom of the inner cavity of the limiting groove 3 during horizontal movement, thus improving the smoothness of the second pump body 5 during horizontal movement. When the gear pump works for a long time, several radiating fins 13 can absorb the heat inside the rotating motor 6 and then discharge it outside the rotating motor 6, thereby greatly increasing the heat dissipation speed of the rotating motor 6, that is, improving the stability of the gear pump during long-term operation. When using the gear pump, inject hydraulic oil into the liquid storage cover 14, so that the liquid storage cover 14 can inject water flow into the second pump body 5, enabling the water flow to fill the gaps inside the second pump body 5, thereby improving the sealing performance when the driving gear 7 rotates, thus facilitating the long-distance transportation of liquids, that is, bringing convenience to the use of the gear pump;

[0034] Step 2: When filling with water flow, the filter net 16 can filter the hydraulic oil inside the liquid storage cover 14, avoiding the problem that impurities in the hydraulic oil enter the second pump body 5 along with the water flow and are difficult to clean, thus improving the cleanliness inside the second pump body 5. When connecting and fixing the first connecting pipe 8 and the second connecting pipe 10, the sealing ring 17 can be filled inside the connecting sleeve 11, thus improving the sealing performance after the connection between the first connecting pipe 8 and the second connecting pipe 10. When the hydraulic device is moving for transportation, push the support platform 1, so that the sliding wheel 182 can drive the support platform 1 to move horizontally through the support column 181, that is, drive the first pump body 2 to move horizontally, thus achieving the effect of moving and transporting the gear pump hydraulic device, and thus bringing convenience to the adjustment of the working position of the gear pump hydraulic device.

[0035] Compared with the related technology, a high-pressure small-displacement gear pump hydraulic device provided by the present utility model has the following beneficial effects:

[0036] By setting the connecting sleeve 11, when the gear pump is installed and used, the sliding block 4 is sleeved inside the limiting groove 3, so that the sliding block 4 can limit and fix the second pump body 5 on the top of the support table 1 through the limiting groove 3. At this time, rotate the connecting sleeve 11 so that the connecting sleeve 11 can drive the first connecting pipe 8 to be fixedly sleeved at one end of the second connecting pipe 10, thereby achieving the connection effect between the first pump body 2 and the second pump body 5, enabling the first pump body 2 and the second pump body 5 to greatly increase the liquid delivery pressure, that is, improving the power of the gear pump, and thus improving the practical effect of the gear pump.

[0037] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A high-pressure small-displacement gear pump hydraulic device, comprising a support platform (1) and a first pump body (2), characterized in that: The top of the support platform (1) is provided with a limit groove (3), the interior of the limit groove (3) is movably sleeved with a sliding block (4), the top of the sliding block (4) is fixedly connected to a No. 2 pump body (5), the exterior of the No. 2 pump body (5) is fixedly mounted with a rotating motor (6), the output shaft of the rotating motor (6) is fixedly sleeved with a driving gear (7), the side of the No. 1 pump body (2) is fixedly sleeved with a No. 1 connecting pipe (8), one end of the No. 1 connecting pipe (8) is fixedly sleeved with a clamping ring (9), the side of the No. 2 pump body (5) is fixedly sleeved with a No. 2 connecting pipe (10), One end of the No. 1 connecting pipe (8) is movably sleeved with a connecting sleeve (11), the bottom of the inner cavity of the limiting groove (3) is movably sleeved with a sliding ball (12), the outside of the rotating motor (6) is fixedly connected with a heat sink (13), the top of the No. 2 pump body (5) is fixedly sleeved with a liquid storage cover (14), the top of the liquid storage cover (14) is threadedly sleeved with a top cover (15), the inside of the liquid storage cover (14) is fixedly sleeved with a filter screen (16), one end of the No. 1 connecting pipe (8) is fixedly sleeved with a sealing ring (17), and the bottom of the support platform (1) is provided with a moving mechanism (18).

2. A high-pressure small-displacement gear pump hydraulic device according to claim 1, characterized in that: The connecting sleeve (11) is threadedly sleeved on one end of the second connecting pipe (10), and the connecting sleeve (11) and the first pump body (2) are perpendicular to each other.

3. A high-pressure small-displacement gear pump hydraulic device according to claim 1, characterized in that: The number of the sliding balls (12) is a plurality, and the plurality of sliding balls (12) are evenly distributed at the bottom of the inner cavity of the limiting groove (3).

4. A high-pressure small-displacement gear pump hydraulic device according to claim 1, characterized in that: The heat sink (13) is made of metal aluminum material, and there are a plurality of heat sinks (13).

5. A high-pressure small-displacement gear pump hydraulic device according to claim 1, characterized in that: The front face of the liquid storage cover (14) is conical, and the liquid storage cover (14) is located directly above the driving gear (7).

6. A high-pressure small-displacement gear pump hydraulic device according to claim 1, characterized in that: The filter screen (16) is matched with the liquid storage cover (14), and the material of the filter screen (16) is stainless steel.

7. A high-pressure small-displacement gear pump hydraulic device according to claim 1, characterized in that: The sealing ring (17) is tightly squeezed on one end of the second connecting pipe (10), and the sealing ring (17) is made of rubber material.

8. A high-pressure small-displacement gear pump hydraulic device according to claim 1, characterized in that: The moving mechanism (18) comprises a support column (181), wherein the support column (181) is fixedly connected to the bottom of the support platform (1), and a sliding wheel (182) is installed at the bottom of the support column (181).

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