Duplex pump for automobile oil supply lubrication

Abstract

The utility model belongs to the field of double pumps, and particularly relates to a double pump for automobile oil supply lubrication, which comprises a double pump shell, a motor is arranged on one side of the double pump shell, a controller is fixedly connected to one side of the motor, an inner meshing cycloid rotor and an outer meshing gear are arranged in an inner cavity of the double pump shell, and the outer meshing cycloid rotor is fixedly connected with the controller. Inner cavities of the inner meshing cycloid rotor and the outer meshing gear are fixedly connected to the surface of an output shaft of the motor. The output shaft of the motor drives the internal gearing cycloid rotor and the external gearing gear to rotate so as to supply oil to lubricate an automobile, the internal gearing cycloid rotor and the external gearing gear replace a traditional vane pump to absorb and supply oil to the automobile, the self-absorption capacity of the internal gearing cycloid rotor and the external gearing gear is high, and the service life of the internal gearing cycloid rotor and the external gearing gear is prolonged. Compared with a vane pump, the vane pump has the advantages that the vane pump can adapt to poor oil absorption conditions to a certain extent, has certain endurance capacity to impurities in oil, can resist oil pollution to a certain extent, and has a better using effect compared with the vane pump.

Description

Technical Field

[0001] This utility model relates to the field of dual pumps, specifically a dual pump for automotive oil supply and lubrication. Background Technology

[0002] A double vane pump consists of two single-stage vane pumps mounted in parallel within a single pump body on the oil circuit. The rotors of the two vane pumps are driven to rotate by the same drive shaft and have their own independent oil outlets. The two pumps can have equal or unequal flow rates.

[0003] In the existing technology, a tandem pump is a hydraulic component that integrates two independent hydraulic pumps on the same housing or shaft. It works simultaneously through a single drive shaft and is mainly used in automotive oil pumps to supply oil for lubrication. The tandem pump draws oil by rotating vanes, but vane pumps have poor self-priming performance and are more sensitive to impurities in the oil. They are easily jammed by impurities in the oil, resulting in poor reliability. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, dual pumps use vane rotation to draw oil. However, vane pumps have poor self-priming performance and are sensitive to impurities in the oil, making them prone to getting stuck and resulting in poor reliability. This invention proposes a dual pump for automotive oil supply and lubrication.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a dual pump for automotive oil supply and lubrication, including a dual pump housing, a motor is provided on one side of the dual pump housing, a controller is fixedly connected to one side of the motor, and an internal meshing cycloidal rotor and an external meshing gear are provided in the inner cavity of the dual pump housing. The inner cavities of the internal meshing cycloidal rotor and the external meshing gear are both fixedly connected to the output shaft surface of the motor.

[0006] Preferably, a spring is fixedly connected to the bottom of the dual pump housing, a base plate is fixedly connected to the bottom of the spring, a damper is fixedly connected to the top of the base plate, and the top of the damper is fixedly connected to the bottom of the dual pump housing.

[0007] Preferably, a first hollow block is fixedly connected to the surface of the dual pump housing, and a second hollow block is fixedly connected to the surface of the motor. Bolts are threadedly connected to the inner cavities of the first and second hollow blocks.

[0008] Preferably, the surface of the motor is provided with a mounting groove, and a sealing ring is fixedly connected to the inner cavity of the mounting groove.

[0009] Preferably, a fixing block is fixedly connected to the surface of the motor, and a sound-absorbing cotton is fixedly connected to one side of the fixing block.

[0010] Preferably, a rubber pad is fixedly connected to the bottom of the base plate, and hollow grooves are formed on the surfaces of both the base plate and the rubber pad.

[0011] The advantages of this utility model are:

[0012] This invention utilizes the output shaft of a dual-pump housing to drive the internal cycloidal rotor and external gear inside the motor to rotate, thereby supplying oil lubrication to the vehicle. The internal cycloidal rotor, located in the low-pressure chamber at the rear, draws in low-pressure oil and outputs high-pressure oil to system A through the compression chamber. The external gear works in conjunction with the internal cycloidal rotor to synchronously draw in oil and output high-pressure oil to system B through the compression chamber. The internal cycloidal rotor and external gear replace the traditional vane pump for oil suction and supply to the vehicle. Furthermore, the internal cycloidal rotor and external gear have strong self-priming capabilities, enabling them to adapt to relatively poor oil suction conditions to a certain extent. They also have a certain tolerance to impurities in the oil, resisting oil contamination to some extent. Compared to vane pumps, they offer better performance, solving the problem that dual-pump systems rely on vane rotation for oil suction, but vane pumps have poor self-priming performance and are more sensitive to impurities in the oil, easily becoming stuck and leading to decreased reliability. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall equipment of this utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of the internal meshing cycloidal rotor of this utility model;

[0016] Figure 3 This is a three-dimensional schematic diagram of the external meshing gear of this utility model;

[0017] Figure 4 This is a three-dimensional schematic diagram of the rubber pad of this utility model.

[0018] In the diagram: 1. Dual pump housing; 2. Motor; 3. Controller; 4. Internal meshing cycloidal rotor; 5. External meshing gear; 6. Base plate; 7. Spring; 8. Damper; 9. First hollow block; 10. Second hollow block; 11. Bolt; 12. Mounting groove; 13. Sealing ring; 14. Fixing block; 15. Sound-absorbing cotton; 16. Rubber pad; 17. Hollow groove. Detailed Implementation

[0019] 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 scope of protection of the present utility model.

[0020] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0021] This application discloses a dual pump for automotive oil supply and lubrication. (See also...) Figure 1-3 A dual pump for automotive oil supply and lubrication includes a dual pump housing 1. A motor 2 is mounted on one side of the dual pump housing 1, and a controller 3 is fixedly connected to one side of the motor 2. An internally meshing cycloidal rotor 4 and an externally meshing gear 5 are housed within the inner cavity of the dual pump housing 1. The inner cavities of both the internally meshing cycloidal rotor 4 and the externally meshing gear 5 are fixedly connected to the output shaft surface of the motor 2. The interior of the dual pump housing 1 can accommodate the internally meshing cycloidal rotor 4 and the externally meshing gear 5, and one side of the dual pump housing 1 can also be connected to the motor 2. The output shaft of the motor 2 is connected to the internally meshing cycloidal rotor 4 and the externally meshing gear 5, allowing the motor 2 to simultaneously drive both the internally meshing cycloidal rotor 4 and the externally meshing gear 5 to rotate. The gear 5 replaces the traditional vane pump for oil suction and supply to the vehicle. The internal meshing cycloidal rotor 4 and the external meshing gear 5 have strong self-priming capabilities, which can adapt to poor oil suction conditions to a certain extent. At the same time, they have a certain tolerance to impurities in the oil and can resist oil contamination to a certain extent. Compared with the vane pump, they perform better. The internal meshing cycloidal rotor 4 is located in the low-pressure chamber on the back, which can suck in low-pressure oil and output high-pressure oil to system A through the compression chamber. The external meshing gear 5 can work with the internal meshing cycloidal rotor 4 to synchronously suck in oil and output high-pressure oil to system B through the compression chamber. The controller 3 on the side of the motor 2 can be used to control the oil flow and adjust the oil pressure, thereby playing a protective role.

[0022] Reference Figure 2 A spring 7 is fixedly connected to the bottom of the double pump housing 1, a base plate 6 is fixedly connected to the bottom of the spring 7, and a damper 8 is fixedly connected to the top of the base plate 6. The top of the damper 8 is fixedly connected to the bottom of the double pump housing 1. The base plate 6 can provide shock absorption protection for the double pump housing 1 through the spring 7, so that the double pump housing 1 is not easily damaged by vibration during use. The damper 8 can provide damping for the elastic force of the spring 7, so that the double pump housing 1 will not shake continuously when the spring 7 is elastically damping, making it more stable.

[0023] Reference Figure 1 A first hollow block 9 is fixedly connected to the surface of the double pump housing 1, and a second hollow block 10 is fixedly connected to the surface of the motor 2. Bolts 11 are threadedly connected to the inner cavities of the first hollow block 9 and the second hollow block 10. The first hollow block 9 is connected to the surface of the double pump housing 1, and the second hollow block 10 is connected to the surface of the motor 2. The interiors of the first hollow block 9 and the second hollow block 10 can be used to connect the bolts 11, so that the double pump housing 1 and the motor 2 can be stably connected together.

[0024] Reference Figure 2 The surface of the motor 2 is provided with a mounting groove 12, and a sealing ring 13 is fixedly connected to the inner cavity of the mounting groove 12. The mounting groove 12 is opened on one side of the motor 2, and the inside can be used to place the sealing ring 13. The sealing ring 13 can seal the connection between the motor 2 and the controller 3, so that the connection between the motor 2 and the controller 3 is not prone to oil leakage.

[0025] Reference Figure 1 A fixing block 14 is fixedly connected to the surface of the motor 2. A sound-absorbing cotton 15 is fixedly connected to one side of the fixing block 14. The fixing block 14 is connected to the surface of the motor 2, and the two sides can be used to connect the two sides of the sound-absorbing cotton 15, so that the sound-absorbing cotton 15 can play a role in silencing the motor 2 and reducing the noise generated by the motor 2 during use.

[0026] Reference Figure 4 A rubber pad 16 is fixedly connected to the bottom of the base plate 6. Hollow grooves 17 are provided on the surfaces of both the base plate 6 and the rubber pad 16. The rubber pad 16 can increase the friction of the base plate 6 on the platform and make it less likely to slip, while the hollow grooves 17 can be easily fixed to the platform with screws.

[0027] Working Principle: When using this device, the output shaft of motor 2 drives the internal cycloidal rotor 4 and external gear 5 inside motor 2 to rotate, thereby supplying oil lubrication to the vehicle. The internal cycloidal rotor 4, located in the low-pressure chamber at the rear, draws in low-pressure oil and outputs high-pressure oil to system A through the compression chamber. The external gear 5 works in conjunction with the internal cycloidal rotor 4 to synchronously draw in oil and output high-pressure oil to system B through the compression chamber. The internal cycloidal rotor 4 and external gear 5 replace the traditional vane pump for oil suction and supply to the vehicle. The self-priming capability of gear 4 and external meshing gear 5 is strong, which can adapt to poor oil suction conditions to a certain extent. At the same time, it has a certain tolerance to impurities in the oil and can resist oil contamination to a certain extent. Compared with vane pumps, it performs better. The controller 3 on the motor 2 side can be used to control the oil flow and adjust the oil pressure, thereby playing a protective role. This solves the problem that the double pump uses vane rotation to suction oil, but the vane pump has poor self-priming performance and is more sensitive to impurities in the oil. It is easy to be stuck by impurities in the oil, resulting in poor working reliability.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A duplex pump for automotive oil supply lubrication, characterized by: The device includes a double pump housing (1), a motor (2) is provided on one side of the double pump housing (1), a controller (3) is fixedly connected to one side of the motor (2), and an internal meshing cycloidal rotor (4) and an external meshing gear (5) are provided in the inner cavity of the double pump housing (1). The inner cavities of the internal meshing cycloidal rotor (4) and the external meshing gear (5) are both fixedly connected to the output shaft surface of the motor (2).

2. A duplex pump for oil supply lubrication of an automobile as claimed in claim 1, wherein: A spring (7) is fixedly connected to the bottom of the double pump housing (1), a base plate (6) is fixedly connected to the bottom of the spring (7), a damper (8) is fixedly connected to the top of the base plate (6), and the top of the damper (8) is fixedly connected to the bottom of the double pump housing (1).

3. A duplex pump for oil supply lubrication of an automobile as claimed in claim 1, wherein: The surface of the double pump housing (1) is fixedly connected to a first hollow block (9), and the surface of the motor (2) is fixedly connected to a second hollow block (10). The inner cavities of the first hollow block (9) and the second hollow block (10) are threadedly connected to bolts (11).

4. A duplex pump for oil supply lubrication of an automobile as claimed in claim 1, wherein: The surface of the motor (2) is provided with a mounting groove (12), and a sealing ring (13) is fixedly connected to the inner cavity of the mounting groove (12).

5. A duplex pump for oil supply lubrication of an automobile as claimed in claim 1, wherein: A fixing block (14) is fixedly connected to the surface of the motor (2), and a sound-absorbing cotton (15) is fixedly connected to one side of the fixing block (14).

6. A duplex pump for oil supply lubrication of an automobile as claimed in claim 2, wherein: A rubber pad (16) is fixedly connected to the bottom of the base plate (6), and hollow grooves (17) are opened on the surfaces of both the base plate (6) and the rubber pad (16).

Images