Large-flow double-outlet metering pump

Abstract

The utility model discloses a large-flow double-outlet metering pump which comprises an inner cover plate, a middle plate and an outer cover plate, the inner cover plate, the middle plate and the outer cover plate are sequentially arranged and are positioned through a positioning sleeve, a sealing structure is arranged on one side of the outer cover plate, a driving shaft is arranged in the sealing structure, and the driving shaft is connected with the outer cover plate. The driving shaft penetrates through the outer cover plate and is sealed through a sealing structure, a driving gear is arranged on the driving shaft, the driving gear is connected with a driven gear in a meshed mode, the driven gear is connected with a driven shaft in a matched mode, two inlet cavities and two outlet cavities are formed in the inner cover plate, and the two inlet cavities and the two outlet cavities are arranged in a matched mode. Therefore, the design requirement of double outlets is met. According to the utility model, the use requirement of large-flow double outlets is met, the flow is stable, the spinning quality is improved, and meanwhile, the sealing effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid transportation and control, in particular to a large-flow double-outlet metering pump. Background Art

[0002] A fiber spinning metering pump is a metering pump specifically designed for use in the chemical fiber spinning process. Its primary function is to uniformly deliver the spinning melt to the spinning assembly, where it passes through the spinneret's micropores to form fibers. Chemical fiber metering pumps typically utilize a gear pump design and are compatible with a variety of chemical fiber spinning equipment. By developing high-flow dual-outlet metering pumps, we are replacing most imported products, reducing production costs and ultimately eliminating our dependence on foreign products.

[0003] Traditional metering pumps often utilize a single outlet design, resulting in a limited flow adjustment range. Furthermore, their sealing structures are complex and difficult to adjust, which can easily lead to fluid leakage, impacting production efficiency and product quality. The spinning industry, in particular, places even higher demands on metering pumps for flow stability and sealing performance. Therefore, the development of a metering pump with high flow, dual outlets, and excellent sealing performance is an urgent need within the industry. Utility Model Content

[0004] The present application provides a large-flow dual-outlet metering pump, which meets the use requirements of large-flow dual outlets, has flow stability, improves spinning quality, and has a good sealing effect.

[0005] This application provides a large flow dual-outlet metering pump, which adopts the following technical solution:

[0006] A large-flow dual-outlet metering pump comprises an inner cover plate, an intermediate plate, and an outer cover plate, wherein the inner cover plate, the intermediate plate, and the outer cover plate are arranged in sequence and positioned by a positioning sleeve; a sealing structure is provided on one side of the outer cover plate, a driving shaft is provided in the sealing structure, the driving shaft passes through the outer cover plate and is sealed by the sealing structure; a driving gear is provided on the driving shaft, the driving gear is meshedly connected to a driven gear, and the driven gear is cooperatively connected to the driven shaft; an inlet cavity and an outlet cavity are provided on the inner cover plate, and two inlet cavities and two outlet cavities are provided to meet the design requirements of the dual outlet.

[0007] By adopting the above technical solutions, when a large-flow double-outlet metering pump designed by the utility model is in use, the inner cover plate, the middle plate and the outer cover plate are positioned and connected, and then the driving shaft passes through the outer cover plate and is sealed through a sealing structure. By driving the driving shaft to rotate, the driven gear meshed with the driving gear and the driven shaft are driven to rotate. The spinning stock solution enters from the inlet cavity. Due to the rotation of the gears, pressure is formed and it flows out from the outlet cavity, completing metering and conveying. Since both the inlet cavity and the outlet cavity are provided with two, the usage requirements of large flow and double outlets are realized, and the flow stability is achieved. At the same time, the design of the sealing structure improves the sealing performance of the pump body.

[0008] Preferably, the sealing structure includes a sealing sleeve arranged on one side of the outer cover plate. A pressure sleeve, a gasket and a sealing ring are arranged in the sealing sleeve. A nut is arranged on the outer side of the sealing sleeve, and the nut is in threaded connection with the sealing sleeve for locking the sealing sleeve and the driving shaft.

[0009] By adopting the above technical solutions, when in use, the sealing structure includes a sealing sleeve, a pressure sleeve, a gasket and a sealing ring. The arrangement of the sealing ring and the gasket is used to improve the sealing effect, and the pressure sleeve is used to improve the stability of the sealing sleeve. After the sealing sleeve is sealed, the sealing sleeve is locked by a nut to ensure its sealing performance.

[0010] Preferably, screws are arranged on the sealing sleeve, and the sealing sleeve is detachably connected to the outer cover plate through the screws. The screws are used to fix the sealing sleeve and the outer cover plate.

[0011] By adopting the above technical solutions, when in use, in order to further fix the sealing sleeve, the sealing sleeve is detachably connected to the outer cover plate through screws.

[0012] Preferably, the sealing ring adopts a multi-layer structure design, and the multi-layer sealing rings are arranged in sequence along the direction of the driving shaft.

[0013] By adopting the above technical solutions, when in use, in order to further improve the sealing effect of the sealing ring, a multi-layer sealing ring structure is added in the sealing sleeve.

[0014] Preferably, the driving shaft and the driving gear are connected by a key, and the key used is a round key.

[0015] By adopting the above technical solutions, when in use, the key is used to achieve the circumferential fixation between the shaft and the parts on the shaft to transmit motion and torque. In order to adapt to the shape of the driving shaft, the round key is adopted.

[0016] Preferably, the positioning sleeve is arranged at the connection of the inner cover plate, the middle plate and the outer cover plate for positioning and maintaining the relative positions of the three. After the positioning sleeve is positioned, it is fixed by means of threaded connection.

[0017] By adopting the above technical solution, during use, after determining the positions of the inner cover plate, the middle plate, and the outer cover plate through the positioning sleeve, they are fixed by structures such as screwing nuts to the positioning sleeve, maintaining the stability of the connection among the inner cover plate, the middle plate, and the outer cover plate.

[0018] Preferably, the driving shaft, the driving gear, the driven gear, and the driven shaft together constitute a transmission mechanism for driving the input and output of the liquid.

[0019] By adopting the above technical solution, during use, the driving shaft, the driving gear, the driven gear, and the driven shaft drive each other, ensuring the stability of the input and output of the liquid in the pump body.

[0020] Preferably, the inlet cavity and the outlet cavity are respectively arranged on both sides of the inner cover plate, and at least one inlet cavity and one outlet cavity are provided on each side.

[0021] By adopting the above technical solution, during use, in order to ensure the flow stability of the input and output in the pump body, one inlet cavity and one outlet cavity are arranged on each side of the inner cover plate.

[0022] In summary, the present application has the following beneficial effects:

[0023] 1. A large-flow double-outlet metering pump designed by the present utility model, through multiple inlet cavities and outlet cavities arranged on the inner cover plate, meets the design requirements of double outlets, realizes the use requirements of large-flow double outlets, has flow stability, and improves the spinning quality;

[0024] 2. A large-flow double-outlet metering pump designed by the present utility model, through a sealing structure composed of a sealing sleeve, a pressing sleeve, a gasket, and a sealing ring, and adopting a multi-layer sealing ring design, enhances the sealing performance, effectively prevents liquid leakage, and improves the safety and stability of the metering pump;

[0025] 3. A large-flow double-outlet metering pump designed by the present utility model, through a driving shaft, a driving gear, a driven gear, and a driven shaft together constituting a transmission mechanism, and connecting the driving shaft and the driving gear by a round key, these connection methods are simple and reliable, convenient for disassembly and maintenance, and at the same time ensure the stability of the input and output of the liquid in the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the embodiment;

[0027] Figure 2 is a schematic structural diagram showing the inner cover plate in the embodiment;

[0028] Description of the reference numerals: 1. Inner cover plate; 2. Intermediate plate; 3. Outer cover plate; 4. Positioning sleeve; 5. Sealing structure; 51. Sealing sleeve; 52. Compression sleeve; 53. Gasket; 54. Sealing ring; 6. Driving shaft; 7. Driving gear; 8. Driven gear; 9. Driven shaft; 10. Inlet chamber; 11. Outlet chamber; 12. Nut; 13. Screw; 14. Key. Detailed implementation manners

[0029] The present utility model will be further described in detail below with reference to the drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom surface" and "top surface" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0030] The present utility model discloses a large-flow double-outlet metering pump. Referring to Figure 1 and Figure 2 , it includes an inner cover plate 1, an intermediate plate 2 and an outer cover plate 3. The inner cover plate 1, the intermediate plate 2 and the outer cover plate 3 are arranged in sequence and positioned by a positioning sleeve 4. The positioning sleeve 4 is arranged at the connection between the inner cover plate 1, the intermediate plate 2 and the outer cover plate 3 to ensure the accurate relative positions of the three. After being positioned by the positioning sleeve 4, a threaded connection method is adopted for fixation to enhance the stability and reliability of the structure.

[0031] A sealing structure 5 is arranged on one side of the outer cover plate 3. The sealing structure 5 includes a sealing sleeve 51, a compression sleeve 52, a gasket 53 and a sealing ring 54. A compression sleeve 52 and a gasket 53 are arranged inside the sealing sleeve 51 for pressing the sealing ring 54 to ensure the sealing effect. The sealing ring 54 adopts a multi-layer structure design, and multiple sealing rings 54 are arranged in sequence along the direction of the driving shaft 6, further enhancing the sealing performance. The sealing ring 54 can be made of rubber material, having good elasticity and sealing performance. A nut 12 is arranged on the outer side of the sealing sleeve 51. The nut 12 is threadedly connected with the sealing sleeve 51 for locking the sealing sleeve 51 and the driving shaft 6 to prevent liquid leakage. At the same time, a screw 13 is arranged on the sealing sleeve 51. The sealing sleeve 51 is detachably connected to the outer cover plate 3 through the screw 13, which is convenient for both fixation and disassembly and maintenance.

[0032] Inside the sealing structure 5, there is a driving shaft 6. The driving shaft 6 passes through the outer cover plate 3 and is sealed by the sealing structure 5. A driving gear 7 is arranged on the driving shaft 6. The driving shaft 6 and the driving gear 7 are connected by a pin key 14. The pin key 14 is a round key. The driving gear 7 is meshed with a driven gear 8. The driven gear 8 is connected with a driven shaft 9 in a matching manner. The driving shaft 6, the driving gear 7, the driven gear 8 and the driven shaft 9 together form a transmission mechanism for driving the input and output of liquid. By adjusting the parameters and transmission ratio of the gears, the output of different flow rates and pressures can be achieved to meet different working requirements.

[0033] Referring to Figure 2 , on the inner cover plate 1, there are an inlet chamber 10 and an outlet chamber 11, and both the inlet chamber 10 and the outlet chamber 11 are provided in two to meet the design requirements of double outlets. This design enables the metering pump to simultaneously transport fluids to two targets, improving the flow rate processing capacity and working efficiency. The inlet chamber 10 and the outlet chamber 11 are respectively arranged on both sides of the inner cover plate 1, facilitating the input and output of fluids. At the same time, there is at least one inlet chamber 10 and one outlet chamber 11 on each side, increasing the flexibility and applicability of the device. In this embodiment, the number of the inlet chamber 10 and the outlet chamber 11 can be adjusted according to actual needs, such as increasing or decreasing the number of chambers, or changing the layout mode of the chambers, to meet different working scenarios and fluid transportation requirements.

[0034] Working principle: For a large-flow double-outlet metering pump designed by the present utility model, the liquid enters the metering pump through the inlet chamber 10, and after being driven by the transmission mechanism, it is output from the outlet chamber 11. The transmission mechanism is composed of a driving shaft 6, a driving gear 7, a driven gear 8 and a driven shaft 9. Through the meshing transmission of the gears, the stable transportation of the liquid is realized. Due to the double-outlet design, fluids can be simultaneously transported to two targets, improving the working efficiency. The sealing structure 5 ensures that the liquid will not leak during the transportation process, guaranteeing the safety and stability of the metering pump.

[0035] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. A large-flow double-outlet metering pump, characterized in that: It includes an inner cover plate (1), a middle plate (2), and an outer cover plate (3). The inner cover plate (1), the middle plate (2), and the outer cover plate (3) are arranged in sequence and positioned by a positioning sleeve (4). A sealing structure (5) is provided on one side of the outer cover plate (3). An active shaft (6) is arranged inside the sealing structure (5). The active shaft (6) passes through the outer cover plate (3) and is sealed by the sealing structure (5). An active gear (7) is arranged on the active shaft (6). The active gear (7) is meshed and connected with a driven gear (8). The driven gear (8) is cooperatively connected with a driven shaft (9). An inlet cavity (10) and an outlet cavity (11) are provided on the inner cover plate (1), and both the inlet cavity (10) and the outlet cavity (11) are provided in two to meet the design requirements of double outlets.

2. The large-flow double-outlet metering pump according to claim 1, characterized in that: The sealing structure (5) includes a sealing sleeve (51) provided on one side of the outer cover plate (3). A pressure sleeve (52), a gasket (53), and a sealing ring (54) are arranged inside the sealing sleeve (51). A nut (12) is arranged on the outer side of the sealing sleeve (51). The nut (12) is in threaded connection with the sealing sleeve (51) and is used to lock the sealing sleeve (51) and the active shaft (6).

3. The large-flow double-outlet metering pump according to claim 2, characterized in that: A screw (13) is arranged on the sealing sleeve (51). The sealing sleeve (51) is detachably connected to the outer cover plate (3) by the screw (13). The screw (13) is used to fix the sealing sleeve (51) and the outer cover plate (3).

4. The large-flow double-outlet metering pump according to claim 2, wherein: The sealing ring (54) adopts a multi-layer structure design. The multi-layer sealing rings (54) are arranged in sequence along the direction of the active shaft (6).

5. A large-flow double-outlet metering pump according to claim 1, characterized in that: The active shaft (6) and the active gear (7) are connected by a pin key (14), and the pin key (14) is a round key.

6. The large-flow double-outlet metering pump according to claim 1, wherein: The positioning sleeve (4) is arranged at the connection part between the inner cover plate (1), the middle plate (2), and the outer cover plate (3) and is used to position and maintain the relative positions of the three. After the positioning sleeve (4) is positioned, it is fixed by a threaded connection method.

7. A large-flow double-outlet metering pump according to claim 1, characterized in that: The active shaft (6), the active gear (7), the driven gear (8), and the driven shaft (9) together form a transmission mechanism for driving the input and output of liquid.

8. A large-flow double-outlet metering pump according to claim 1, characterized in that: The inlet cavity (10) and the outlet cavity (11) are respectively arranged on both sides of the inner cover plate (1), and at least one inlet cavity (10) and one outlet cavity (11) are provided on each side.

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