Electric duplex pre-wetting pump

Abstract

The utility model discloses an electric duplex pre-moistening pump which comprises a direct current motor and a preheating control system, a suction pressure duplex pump is installed at the output end of the direct current motor, the suction pressure duplex pump comprises a pressure oil pump body, an oil suction pump body and a pump cover which are arranged in sequence, and two hot water circulation cavities which are arranged up and down are arranged in the pressure oil pump body and the oil suction pump body. The front side and the rear side of the oil pressing pump body are provided with an oil pressing inlet and an oil pressing outlet, the upper side and the lower side of the oil pressing pump body are provided with a water inlet pipe connector and a water outlet pipe connector, the front side and the rear side of the oil suction pump body are provided with an oil suction inlet and an oil suction outlet, and the upper side and the lower side of the oil suction pump body are each provided with a communicating pipe connector. And the two communicating pipe joints are communicated through a rubber hose. According to the electric duplex pre-moistening pump provided by the utility model, the engine can be quickly started in an extremely cold environment below-50 DEG C within an extremely short time, and the requirements of equipment starting instantaneity and reaction flexibility are met.

Description

Technical Field

[0001] The utility model relates to an electric double pre-lubricating pump, in particular to a pre-lubricating pump which adopts hot water circulation preheating and is driven by a DC motor, and belongs to the technical field of lubricating oil pumps. Background Art

[0002] The main function of the lubricating oil pump in the engine system is to provide sufficient lubricating oil to the engine and to provide sufficient and reliable lubrication for each engine component.

[0003] The operating conditions of some equipment are relatively harsh, and sometimes they are used in extremely cold environments below -50°C. At this time, the oil in the lubricating oil pump will solidify, causing the engine to be unable to start normally in a short period of time, and cannot meet the instantaneous startup and response flexibility requirements of the equipment.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the deficiencies in the background technology, the utility model provides an electric double pre-lubrication pump, which can realize rapid engine starting in a very short time in an extremely cold environment below -50°C, meeting the requirements of instantaneous starting of equipment and flexibility of response.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An electric double pre-lubrication pump, comprising a DC motor and a preheating control system, a suction-pressure double pump is installed on the output end of the DC motor, and the suction-pressure double pump comprises an oil pressure pump body, an oil suction pump body and a pump cover which are arranged in sequence;

[0008] There are two hot water circulation chambers arranged up and down inside the oil pressure pump body and the oil suction pump body;

[0009] The front and rear sides of the oil pressure pump body are provided with an oil pressure inlet and an oil pressure outlet, and the upper and lower sides of the oil pressure pump body are installed with a water inlet pipe joint and a water outlet pipe interface; the front and rear sides of the oil suction pump body are provided with an oil suction inlet and an oil suction outlet, and the upper and lower sides of the oil suction pump body are installed with a connecting pipe joint, and the two connecting pipe joints are connected by a rubber hose.

[0010] Furthermore, the DC motor and the preheating control system are fastened above the connecting bracket by bolts.

[0011] Furthermore, the preheating control system includes a fuse component and a preheating relay, and the fuse component and the preheating relay are installed in series on the cable and installed above the rain shield.

[0012] Furthermore, one end of the cable is connected to the DC motor, and the other end is provided with a wiring terminal.

[0013] Furthermore, the rain shield is fixedly connected to the top of the connecting bracket, and a side of the rain shield away from the DC motor has an inclined plate body.

[0014] Furthermore, the suction-pressure double pump is connected to the output end of the DC motor via a connecting plate, the connecting plate is fastened to the oil pressure pump body, the oil suction pump body and the pump cover via bolts, and each joint surface is provided with an O-ring for sealing.

[0015] Furthermore, a pump shaft is passed through the oil pressure pump body and the oil suction pump body, the pump shaft is connected to the main shaft of the DC motor, and two pairs of inner and outer rotors are installed on the pump shaft, and the two pairs of inner and outer rotors are respectively located inside the oil pressure pump body and the oil suction pump body.

[0016] Furthermore, the water inlet pipe joint and the water outlet pipe joint are respectively connected to the end of the hot water circulation chamber; the connecting pipe joint is connected to the end of the hot water circulation chamber.

[0017] Furthermore, the pressure oil inlet and the pressure oil outlet are communicated with the inner cavity of the pressure oil pump body, and the suction oil inlet and the suction oil outlet are communicated with the inner cavity of the suction oil pump body.

[0018] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0019] By setting up a hot water circulation chamber and pipeline, the engine oil can be quickly preheated;

[0020] The setting of preheating relay and insurance components in the preheating control system ensures the normal operation of the DC motor and the safety of the unit; the onboard DC power supply is fully utilized. After the vehicle is powered on, the DC motor can be started. After the DC motor is started, the pump shaft in the suction and pressure double pump is driven to rotate. The two pairs of rotors work at the same time, each completing the functions of oil suction and oil pressure, which can recycle the engine oil and is low-carbon and environmentally friendly;

[0021] The electric double pre-lubrication pump fully lubricates all engine components before the vehicle is started. The preheating and pre-lubrication functions are designed to enable the engine unit to start instantly in an extremely cold environment of -50°C, meeting the requirements for instantaneous startup and flexible response of the equipment.

[0022] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural stereogram of the utility model;

[0024] Figure 2 It is a top view of the structure of the utility model;

[0025] Figure 3 It is a structural sectional view of the utility model.

[0026] In the figure, 1-DC motor; 2-preheating control system, 21-cable, 22-insurance component, 23-preheating relay, 24-terminal, 25-rain shield; 3-connecting bracket; 4-suction and pressure double pump, 41-suction pump body, 42-pressure pump body, 43-pump shaft, 44-pump cover, 45-inner and outer rotors, 46-suction inlet, 47-suction outlet, 48-pressure oil inlet, 49-pressure oil outlet, 410-hot water circulation chamber, 411-water inlet pipe joint, 412-connecting pipe joint, 413-rubber hose, 414-water outlet pipe interface, 5-connecting plate. DETAILED DESCRIPTION

[0027] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0028] like Figure 1-Figure 3 As shown together, the utility model provides an electric double pre-lubrication pump, including a DC motor 1 and a preheating control system 2, the DC motor 1 and the preheating control system 2 are fastened on top of a connecting bracket 3 by bolts, and a suction and pressure double pump 4 is installed on the output end of the DC motor 1.

[0029] The preheating control system 2 comprises a fuse component 22 and a preheating relay 23 , which are installed in series on a cable 21 and above a rain shield 25 .

[0030] One end of the cable 21 is connected to the DC motor 1 , and the other end is provided with a connection terminal 24 .

[0031] The rain shield 25 is fixedly connected to the top of the connecting bracket 3 . The side of the rain shield 25 away from the DC motor 1 has an inclined plate body, which has the effect of waterproofing and dustproofing the preheating control system 2 .

[0032] The suction-pressure double pump 4 is connected to the output end of the DC motor 1 via a connecting plate 5 .

[0033] The suction-pressure double pump 4 comprises a pressure oil pump body 42, a suction oil pump body 41 and a pump cover 44 which are arranged in sequence. The connecting plate 5 is fastened to the pressure oil pump body 42, the suction oil pump body 41 and the pump cover 44 by bolts, and each joint surface is provided with an O-ring for sealing.

[0034] A pump shaft 43 is passed through the interior of the oil pressure pump body 42 and the oil suction pump body 41, and the pump shaft 43 is connected to the main shaft of the DC motor 1. Two pairs of inner and outer rotors 45 are installed on the pump shaft 43, and the two pairs of inner and outer rotors 45 are respectively located inside the oil pressure pump body 42 and the oil suction pump body 41.

[0035] The oil pressure pump body 42 and the oil suction pump body 41 have two hot water circulation chambers 410 disposed vertically inside.

[0036] The pressure oil pump body 42 is provided with a pressure oil inlet 48 and a pressure oil outlet 49 at the front and rear sides thereof, and the pressure oil inlet 48 and the pressure oil outlet 49 are communicated with the inner cavity of the pressure oil pump body 42 .

[0037] The upper and lower sides of the oil pressure pump body 42 are provided with a water inlet pipe joint 411 and a water outlet pipe joint 414 , and the water inlet pipe joint 411 and the water outlet pipe joint 414 are respectively connected to the ends of the hot water circulation chamber 410 .

[0038] The oil suction pump body 41 is provided with an oil suction inlet 46 and an oil suction outlet 47 at the front and rear sides thereof. The oil suction inlet 46 and the oil suction outlet 47 are communicated with the inner cavity of the oil suction pump body 41 .

[0039] A connecting pipe joint 412 is installed on both the upper and lower sides of the oil suction pump body 41. The connecting pipe joint 412 is connected to the end of the hot water circulation chamber 410. The two connecting pipe joints 412 are connected by a rubber hose 413, and the rubber hose 413 connects the upper and lower hot water circulation chambers 410 in series.

[0040] The specific working principle of this utility model:

[0041] The water inlet pipe joint 411 and the water outlet pipe joint 414 are connected to the hot water circulation pipeline of the engine, and flowing hot water is injected into the hot water circulation chamber 410 of the suction and pressure double pump 4 to preheat the oil in the suction pump body 41 and the pressure pump body 42. After the oil reaches the required temperature, the vehicle system is powered on, the preheating relay 23 and the insurance component 22 are started, and the start and stop and normal operation of the DC motor 1 are controlled, so as to provide overload protection for the DC motor 1.

[0042] The rain shield 25 on one side of the preheating relay 23 has the effect of waterproofing and dustproofing the preheating control system 2, extending the service life of the preheating relay 23 and improving the reliability of the product.

[0043] After the DC motor 1 is started, its main shaft drives the pump shaft 43 to rotate. During the rotation, the oil in the oil tank is sucked into the oil pressure pump body 42 through the oil pressure inlet 48, and then the oil is delivered to various parts of the engine that need lubrication through the oil pressure outlet 49. The oil that completes the lubrication task is collected in the engine to a designated pipeline, which is connected to the oil suction inlet 46 of the oil suction pump body 41, and then the oil is delivered to the filter device through the oil suction outlet 47. The purified and filtered oil is delivered back to the oil tank and then sucked by the oil pressure pump body 42 to continue to provide lubrication for the engine. In this way, the electric double pre-lubrication pump completes a working cycle and realizes the recycling of the oil. Before the vehicle is started, the various parts inside the engine are fully lubricated. The above preheating and pre-lubrication function design can ensure that the engine can be started instantly in an extremely cold environment below -50°C, greatly improving the reliability of the engine while meeting the requirements of the instantaneousness and flexibility of the equipment start.

[0044] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. An electric double pre-lubricating pump, characterized in that: It comprises a DC motor (1) and a preheating control system (2), wherein a suction-pressure double pump (4) is installed on the output end of the DC motor (1), and the suction-pressure double pump (4) comprises an oil pressure pump body (42), an oil suction pump body (41) and a pump cover (44) which are arranged in sequence; The oil pressure pump body (42) and the oil suction pump body (41) have two hot water circulation chambers (410) arranged vertically inside. The pressure oil pump body (42) is provided with a pressure oil inlet (48) and a pressure oil outlet (49) on the front and rear sides, and a water inlet pipe joint (411) and a water outlet pipe joint (414) are installed on the upper and lower sides of the pressure oil pump body (42); the suction oil pump body (41) is provided with an suction oil inlet (46) and an suction oil outlet (47) on the front and rear sides, and a connecting pipe joint (412) is installed on the upper and lower sides of the suction oil pump body (41), and the two connecting pipe joints (412) are connected through a rubber hose (413).

2. An electric double pre-lubricating pump as claimed in claim 1, characterized in that: The DC motor (1) and the preheating control system (2) are fastened above the connecting bracket (3) by means of bolts.

3. An electric double pre-lubricating pump as claimed in claim 2, characterized in that: The preheating control system (2) comprises a fuse component (22) and a preheating relay (23), wherein the fuse component (22) and the preheating relay (23) are installed in series on the cable (21) and installed above the rain shield (25).

4. An electric double pre-lubricating pump as claimed in claim 3, characterized in that: One end of the cable (21) is connected to the DC motor (1), and the other end is provided with a connection terminal (24).

5. An electric double pre-lubricating pump as claimed in claim 4, characterized in that: The rain shield (25) is fixedly connected to the top of the connecting bracket (3), and a side of the rain shield (25) away from the DC motor (1) has a plate body arranged in an inclined manner.

6. An electric double pre-lubricating pump as claimed in claim 1, characterized in that: The suction-pressure double pump (4) is connected to the output end of the DC motor (1) via a connecting plate (5); the connecting plate (5) is fastened to the oil pressure pump body (42), the oil suction pump body (41) and the pump cover (44) via bolts, and each joint surface is provided with an O-ring for sealing.

7. An electric double pre-lubricating pump as claimed in claim 1, characterized in that: A pump shaft (43) is inserted into the oil pressure pump body (42) and the oil suction pump body (41). The pump shaft (43) is connected to the main shaft of the DC motor (1). Two pairs of inner and outer rotors (45) are mounted on the pump shaft (43). The two pairs of inner and outer rotors (45) are respectively located inside the oil pressure pump body (42) and the oil suction pump body (41).

8. An electric double pre-lubricating pump as claimed in claim 1, characterized in that: The water inlet pipe joint (411) and the water outlet pipe joint (414) are respectively connected to the end of the hot water circulation chamber (410); and the connecting pipe joint (412) is connected to the end of the hot water circulation chamber (410).

9. An electric double pre-lubricating pump as claimed in claim 1, characterized in that: The pressure oil inlet (48) and the pressure oil outlet (49) are in communication with the inner cavity of the pressure oil pump body (42), and the suction oil inlet (46) and the suction oil outlet (47) are in communication with the inner cavity of the suction oil pump body (41).

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