Double-medium double pump structure with independent loop

Abstract

The utility model discloses a double-medium double pump structure with an independent loop, and relates to the technical field of oil pumps. Comprising a front cover, the outer wall of the front cover is fixedly connected with a front pump body, the end, away from the front cover, of the front pump body is fixedly connected with a front transition plate, the inner wall of the front cover is rotationally connected with a front shaft, the outer wall of the front transition plate is fixedly connected with a rear transition plate, and the inner wall of the rear transition plate is clamped with an oil seal structure; the side, away from the rear transition plate, of the rear pump body is fixedly connected with a rear cover, a first oil inlet is formed in the outer wall of the bottom of the front pump body, and a second oil inlet is formed in the outer wall of the bottom of the rear pump body. Double-medium conveying can be completed at the same time, loops do not interfere with one another, and therefore the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil pump technology, specifically to a dual-medium double pump structure with an independent circuit. Background Technology

[0002] In many industrial production scenarios, such as chemical reaction processes, lubrication and cooling systems for machining equipment, and automated production lines that require the coordinated operation of multiple media, it is often necessary to simultaneously transport two different media. Taking chemical production as an example, in synthesis reactions, it is necessary to simultaneously transport two different liquid media, namely catalysts and reactants, into the reactor. In machining workshops, machine tools require independent lubricating and cooling fluid circulation systems to ensure normal operation. However, traditional pump structures reveal their shortcomings in these scenarios. Most conventional pumps can only transport one type of medium. To meet the needs of transporting multiple media, multiple independent pumps need to be installed. This not only increases equipment procurement costs but also complicates system piping connections and occupies a large amount of installation space. In mobile operating equipment with limited space, such as mobile water injection pump trucks in oilfield extraction, the space occupation problem of traditional pump structures is even more prominent, limiting the expansion of equipment functions and operations. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a dual-medium dual-pump structure with an independent circuit. This dual-medium dual-pump structure, through innovative structural design, solves the deficiencies of traditional pumps in dual-medium delivery, while optimizing installation space. It improves production efficiency and better meets the diverse needs of industrial production.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a dual-medium dual-pump structure with an independent circuit, including a front cover, a front pump body fixedly connected to the outer wall of the front cover, a front transition plate fixedly connected to the end of the front pump body away from the front cover, a front shaft rotatably connected to the inner wall of the front cover, a rear transition plate fixedly connected to the outer wall of the front transition plate, an oil seal structure snapped into the inner wall of the rear transition plate, a rear pump body fixedly connected to the end of the rear transition plate away from the front transition plate, and a rear cover fixedly connected to the side of the rear pump body away from the rear transition plate.

[0007] Preferably, the outer wall at the bottom of the front pump body has a first oil inlet, the side wall of the front pump body has a first oil outlet, the outer wall at the bottom of the rear pump body has a second oil inlet, and the side wall of the rear pump body has a second oil outlet. This dual pump is configured to drive gears in the front and rear pump bodies through the front shaft, allowing different media to be drawn in from the first and second oil inlets respectively. After pressurization, the media are output independently, enabling simultaneous delivery of two media without interference between the circuits, thereby improving work efficiency.

[0008] Preferably, the outer wall of the front axle is rotatably connected to the inner wall of the front transition plate and the inner wall of the rear transition plate, the outer wall of the front axle is fixedly connected to the rear axle by a spline, the outer wall of the rear axle is drivenly connected to the inner wall of the rear cover, and the rear axle is disposed inside the rear pump body.

[0009] Preferably, the oil seal structure includes a rubber ring, the outer wall of which is fitted with a clamping ring through a connecting groove, and the inner side wall of the rubber ring has a sealing groove. The outer side wall of the rubber ring is engaged with the inner wall of the rear transition plate, and the inner side wall of the rubber ring is rotatably connected to the outer wall of the front axle. The components, such as the front cover, pump body, transition plate, and rear cover, are tightly connected, resulting in a compact structure. The oil seal structure isolates the interior, preventing liquid exchange. While ensuring functionality, it saves installation space. For space-constrained scenarios such as mobile operating equipment, it can be flexibly installed, effectively improving the space utilization rate of the equipment.

[0010] (III) Beneficial Effects

[0011] This invention provides a dual-medium double pump structure with an independent circuit. It has the following advantages:

[0012] (I) The dual-medium dual-pump structure is designed so that the dual pump drives the gears in the front and rear pump bodies through the front shaft, and draws in different media from the first oil inlet and the second oil inlet respectively. After pressurization, the media are output independently, which can simultaneously complete the transportation of dual media, and the circuits do not interfere with each other, thereby improving work efficiency and meeting the complex needs of independent supply of multiple media in industries such as chemical and mechanical processing.

[0013] (II) The dual-medium dual-pump structure is tightly connected by various components such as the front cover, pump body, transition plate and rear cover. The structure is compact and the internal structure is isolated by the oil seal structure to prevent liquid from communicating. While ensuring the function, it saves installation space. It can be flexibly installed in space-constrained scenarios such as mobile operating equipment, effectively improving the space utilization of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the oil seal structure of this utility model.

[0017] In the diagram: 1. Front cover; 2. Front pump body; 3. First oil outlet; 4. Front transition plate; 5. Rear transition plate; 6. Rear pump body; 7. Second oil outlet; 8. Rear cover; 9. First oil inlet; 10. Second oil inlet; 11. Front axle; 13. Rear axle; 15. Oil seal structure; 151. Rubber ring; 152. Connecting groove; 153. Tightening ring; 154. Sealing groove. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a dual-medium dual-pump structure with an independent circuit, including a front cover 1, a front pump body 2 fixedly connected to the outer wall of the front cover 1, a front transition plate 4 fixedly connected to the end of the front pump body 2 away from the front cover 1, a front shaft 11 rotatably connected to the inner wall of the front cover 1, a rear transition plate 5 fixedly connected to the outer wall of the front transition plate 4, an oil seal structure 15 snapped into the inner wall of the rear transition plate 5, a rear pump body 6 fixedly connected to the end of the rear transition plate 5 away from the front transition plate 4, and a rear cover 8 fixedly connected to the side of the rear pump body 6 away from the rear transition plate 5.

[0020] The outer wall at the bottom of the front pump body 2 has a first oil inlet 9 and a first oil outlet 3 on the side wall of the front pump body 2. The outer wall at the bottom of the rear pump body 6 has a second oil inlet 10 and a second oil outlet 7 on the side wall of the rear pump body 6. The front shaft 11 passes through the front cover 1, the front transition plate 4, and the rear transition plate 5 and is rotatably connected. It is connected inside the rear pump body 6 by a spline fit, thereby driving the rear shaft 13. When working, the equipment that needs to transport oil is connected to the first oil outlet 3 and the second oil outlet 7. Both the front shaft 11 and the rear shaft 13 are fitted with internal gear rings. The introduction and pumping of oil are realized by the rotation of the internal gear rings. The power source drives the front shaft 11 to rotate, thereby driving the front shaft 11 and the rear shaft 13 to rotate synchronously. The first oil inlet 9 at the bottom of the front pump body 2 and the second oil inlet 10 at the bottom of the rear pump body 6 respectively draw in different media.

[0021] The outer wall of the front axle 11 is rotatably connected to the inner wall of the front transition plate 4 and the inner wall of the rear transition plate 5. The outer wall of the front axle 11 is fixedly connected to the rear axle 13 via a spline. The outer wall of the rear axle 13 is drively connected to the inner wall of the rear cover 8. The rear axle 13 is located inside the rear pump body 6. In the front pump body 2, the front axle 11 drives the internal gear ring to rotate, creating a negative pressure inside the front pump body 2. The medium is drawn in from the first oil inlet 9 at the bottom of the front pump body 2, pressurized inside the pump body, and then output from the first oil outlet 3 at the top. Similarly, in the rear pump body 6, the rear axle 13 drives the internal gear ring inside the rear pump body 6 to rotate, drawing in the medium from the second oil inlet 10, pressurizing it, and then outputting it from the second oil outlet 7. This allows the two circuits to operate independently and be driven by the same front axle 11.

[0022] The oil seal structure 15 includes a rubber ring 151. A clamping ring 153 is fitted onto the outer wall of the rubber ring 151 through a connecting groove 152. A sealing groove 154 is provided on the inner side wall of the rubber ring 151. The outer side wall of the rubber ring 151 is engaged with the inner wall of the rear transition plate 5. The inner side wall of the rubber ring 151 is rotatably connected to the outer wall of the front shaft 11. The clamping ring 153 is fitted onto the outer side of the rubber ring 151, and the sealing groove 154 is provided inside. Due to the push of the clamping ring 153, the rubber ring 151 fitted on the front shaft 11 has its two sides protruding apart and stably attached to the surface of the front shaft 11. The oil seal structure 15 isolates the internal communication of the dual pump, making the working circuits of the front pump body 2 and the rear pump body 6 independent of each other, and avoiding the mixing of the two media.

[0023] In use, the dual-medium dual-pump structure with independent circuits consists of a front cover 1, a front pump body 2, a front transition plate 4, a rear transition plate 5, a rear pump body 6, a rear cover 8, and internal components such as a front shaft 11, a rear shaft 13, and an oil seal structure 15 working together. The front cover 1 is fixed to the front pump body 2, the front pump body 2 is connected to the rear transition plate 5 through the front transition plate 4, the rear transition plate 5 is then connected to the rear pump body 6, and finally fixed to the rear cover 8.

[0024] The front axle 11 passes through the front cover 1, the front transition plate 4, and the rear transition plate 5. The front axle 11 and the rear axle 13 are connected by a spline joint. The outer wall of the rear axle 13 is connected to the inner wall of the rear cover 8 via a transmission connection. During operation, equipment requiring oil supply is connected to the first oil outlet 3 and the second oil outlet 7. Both the front axle 11 and the rear axle 13 are fitted with internal gear rings, and the introduction and pumping of oil are achieved through the rotation of the internal gear rings. The power source drives the front axle 11 to rotate, which in turn drives the rear axle 13 to rotate synchronously. The first oil inlet 9 at the bottom of the front pump body 2 and the second oil inlet 9 at the bottom of the rear pump body 6 are connected to the front pump body 2. Different media are drawn in through the oil inlet 10. In the front pump body 2, the gear position of the front shaft 11 drives the internal gear ring to rotate, creating a negative pressure inside the front pump body 2. The media is drawn in from the first oil inlet 9 at the bottom of the front pump body 2, and after being pressurized inside the pump body, it is output from the first oil outlet 3 on the side. Similarly, in the rear pump body 6, the rear shaft 13 drives the internal gear ring inside the rear pump body 6 to rotate, drawing in the media from the second oil inlet 10. After being pressurized, it is output from the second oil outlet 7, so that the two circuits operate independently and are driven by the same front shaft 11.

[0025] The oil seal structure 15 on the rear transition plate 5 serves to prevent oil circuit connection. The rubber ring 151 of the oil seal structure 15 is snapped into the inner wall of the rear transition plate 5 through the outer side wall, and the inner side wall is rotatably connected to the front shaft 11. The rubber ring 151 is fitted with a clamping ring 153 through the connecting groove 152 on the outside, and has a sealing groove 154 inside. Due to the push of the clamping ring 153, the rubber ring 151 fitted on the front shaft 11 has its two sides protruding apart and stably attached to the surface of the front shaft 11. The oil seal structure 15 isolates the internal communication of the dual pump, so that the working circuits of the front pump body 2 and the rear pump body 6 are independent of each other, avoiding the mixing of the two media and ensuring that each medium is stably transported in an independent circuit.

[0026] This dual-pump design enables the simultaneous delivery of two media, with each circuit operating independently. This meets the needs of different working scenarios for the independent delivery of multiple media, improving work efficiency. On the other hand, the compact structure and close connection of multiple components save installation space and reduce the equipment's footprint, making it suitable for working environments with high space requirements.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-medium double pump structure with an independent circuit, comprising a front cover (1), a front pump body (2) fixedly connected to the outer wall of the front cover (1), a front transition plate (4) fixedly connected to the end of the front pump body (2) away from the front cover (1), and a front shaft (11) rotatably connected to the inner wall of the front cover (1), characterized in that: The outer wall of the front transition plate (4) is fixedly connected to the rear transition plate (5), the inner wall of the rear transition plate (5) is snapped with an oil seal structure (15), the rear transition plate (5) is fixedly connected to the rear pump body (6) at one end away from the front transition plate (4), and the rear pump body (6) is fixedly connected to the rear cover (8) on the side away from the rear transition plate (5). The outer wall at the bottom of the front pump body (2) is provided with a first oil inlet (9), the side wall of the front pump body (2) is provided with a first oil outlet (3), the outer wall at the bottom of the rear pump body (6) is provided with a second oil inlet (10), and the side wall of the rear pump body (6) is provided with a second oil outlet (7).

2. The dual-medium double pump structure with independent circuits according to claim 1, characterized in that: The outer wall of the front axle (11) is rotatably connected to the inner wall of the front transition plate (4) and the inner wall of the rear transition plate (5), respectively. The outer wall of the front axle (11) is fixedly connected to the rear axle (13) by a spline. The outer wall of the rear axle (13) is drive-connected to the inner wall of the rear cover (8).

3. The dual-medium double pump structure with independent circuits according to claim 2, characterized in that: The rear shaft (13) is located inside the rear pump body (6).

4. The dual-medium double pump structure with independent circuits according to claim 1, characterized in that: The oil seal structure (15) includes a rubber ring (151), the outer wall of the rubber ring (151) is fitted with a clamping ring (153) through a connecting groove (152), and a sealing groove (154) is provided on the inner side wall of the rubber ring (151).

5. The dual-medium double pump structure with independent circuit according to claim 4, characterized in that: The outer sidewall of the rubber ring (151) is engaged with the inner wall of the rear transition plate (5), and the inner sidewall of the rubber ring (151) is rotatably connected to the outer wall of the front axle (11).

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