Pump body internal leakage alarm device of electric oil pump

Abstract

The utility model discloses an electric oil pump body interior leakage alarm device which comprises a pump shell formed by combining a bottom cover and an upper cover, the outer end of the pump shell is covered with a leakage alarm assembly, the leakage alarm assembly comprises an oil collecting cover, and an oil collecting cavity for containing the pump shell is formed in the oil collecting cover and used for collecting oil leaked from the pump shell; an oil level sensor used for monitoring the oil level in the oil collecting cavity is embedded in the bottom of the oil collecting cavity. The leakage alarm assembly capable of monitoring oil leakage of the pump body in real time is designed, when the oil leakage phenomenon of the pump body occurs, leaked oil can be collected through the oil collecting cover, environment pollution is avoided, meanwhile, the oil can be recycled, when the oil falls onto the oil level sensor, the oil level sensor receives a signal, and the oil leakage alarm assembly is used for alarming the oil leakage of the pump body. And the control terminal is used for reminding that the pump body leaks, so that the working state of the oil pump can be monitored in real time, and the normal operation of the whole oil pump is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil pumps, in particular to an internal leakage alarm device of an electric oil pump. Background Art

[0002] An electric oil pump is a device used to transport oil and is widely used in the automotive, chemical and other industries. It usually includes a pump body and a drive motor. The pump body generally uses gears or rotors as the transmission part.

[0003] After long-term use, the current electric oil pump is prone to leakage at the connection between the shaft and the pump casing and the connection between the upper cover and the lower cover (leakage caused by damage to the sealing ring or overall wear). If it is not discovered in time, it will seriously affect the normal operation of the oil pump and the safety of the working environment. In order to solve the above problems, an internal leakage alarm device of the pump body of the electric oil pump is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an internal leakage alarm device of an electric oil pump in order to solve the above-mentioned problem.

[0005] The technical solution adopted by the utility model is as follows: an internal leakage alarm device of an electric oil pump comprises a pump casing formed by a bottom cover and an upper cover, the outer end cover of the pump casing is provided with a leakage alarm assembly, the leakage alarm assembly comprises an oil collecting cover, the oil collecting cover has an oil collecting chamber for accommodating the pump casing and is used to collect oil leaked from the pump casing; an oil level sensor for monitoring the oil level inside the oil collecting chamber is embedded at the bottom of the oil collecting chamber.

[0006] In a preferred embodiment, a groove is formed on the bottom inner wall of the oil collecting hood to accommodate the bottom end of the bottom cover, and the oil collecting hood and the bottom cover are fixed together by bolts.

[0007] In a preferred embodiment, the bottom inner wall of the oil collecting hood is provided with an oil guiding slope inclined toward one side, and the oil level sensor is located at the bottom end of the oil guiding slope.

[0008] In a preferred embodiment, the pump housing is internally provided with a gear set for pumping oil, and a driving gear in the gear set is provided with a connecting shaft with one end extending out of the upper cover.

[0009] In a preferred embodiment, the upper end surface of the oil collecting hood is 3 to 5 cm higher than the upper end surface of the upper cover.

[0010] In a preferred embodiment, mounting holes are formed through both ends of the oil collecting hood.

[0011] In a preferred embodiment, a sealing ring with interference fit is provided at the connection between the oil level sensor and the oil collecting hood, and the oil level sensor is connected to an external control terminal via the sensor.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. In the utility model, a leakage alarm component is designed to monitor the oil leakage of the pump body in real time. When the pump body leaks, the leaked oil falls on the oil level sensor. The oil level sensor receives the signal and transmits it to the control terminal to remind the staff that the pump body has leaked. The whole can monitor the working status of the oil pump in real time, thereby ensuring the normal operation of the whole work;

[0014] 2. In the utility model, the leakage alarm assembly is provided with an oil collecting cover which is detachable from the pump casing and covers the pump casing. When leakage occurs, the leaked oil can be collected to avoid environmental pollution and the oil can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal structure of the utility model as a whole;

[0016] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point a in the middle.

[0017] Markings in the figure: 1-oil collecting cover, 101-mounting hole, 102-oil guide slope, 103-oil collecting chamber, 2-bottom cover, 3-gear set, 4-upper cover, 5-connecting shaft, 6-oil level sensor, 7-sealing ring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] Reference Figure 1-2The internal leakage alarm device of the pump body of the electric oil pump includes a pump shell formed by a combination of a bottom cover 2 and an upper cover 4. The outer end cover of the pump shell is provided with a leakage alarm component. The leakage alarm component includes an oil collecting cover 1. The oil collecting cover 1 has an oil collecting chamber 103 for accommodating the pump shell, which is used to collect the oil leaked from the pump shell; the bottom of the oil collecting chamber 103 is embedded with an oil level sensor 6 for monitoring the oil level inside the oil collecting chamber 103. The oil level sensor 6 is connected to the control terminal through the sensor. When the pump body leaks, the leaked oil falls on the oil level sensor 6. The oil level sensor 6 receives the signal and transmits it to the control terminal to remind the staff that the pump body has a leakage phenomenon. The whole can monitor the working state of the oil pump in real time, so as to ensure the normal operation of the whole work. At the same time, the leakage alarm component has an oil collecting cover 1 that is detachable from the pump shell and covers the pump shell. When a leakage occurs, the leaked oil can be collected to avoid polluting the environment and can also be recycled.

[0020] Among them, the oil level sensor 6 is preferably a capacitive sensor, and can also be other types of sensors. The control terminal is preferably the control terminal of the corresponding installation equipment, and can also be other intelligent devices such as a computer.

[0021] It should be mentioned that the above electrical connection method is an existing technology that has been implemented, and the details will not be repeated here.

[0022] Furthermore, a groove is formed on the bottom inner wall of the oil collecting hood 1 to accommodate the insertion of the bottom end of the bottom cover 2. The oil collecting hood 1 and the bottom cover 2 are fixed together by bolts. When the oil collecting hood 1 needs to be cleaned, the bolts can be removed to separate the oil collecting hood 1 from the pump cover, and the interior of the oil collecting hood 1 can be cleaned and maintained.

[0023] Furthermore, the bottom inner wall of the oil collecting hood 1 is provided with an oil guiding slope 102 inclined toward one side, and the oil level sensor 6 is located at the bottom of the oil guiding slope 102. The advantage of the above design is that when a leak occurs at any position, the oil will fall into the oil collecting hood 1 and flow along the slope 102 to just above the oil level sensor 6, thereby being able to achieve overall monitoring operation even in the early stage of the oil leak.

[0024] Furthermore, the pump housing has a built-in gear set 3 for pumping oil. The driving gear in the gear set 3 is provided with a connecting shaft 5 with one end extending out of the upper cover 4. The gear set 3 can also be a rotor set, which will not be described in detail here.

[0025] Furthermore, the upper end surface of the oil collecting hood 1 is 3 to 5 cm higher than the upper end surface of the upper cover 4. When leakage occurs between the connecting shaft 5 and the pump casing, a small part of the leaked oil is thrown out due to the continuous rotation of the connecting shaft 5. The advantage of the above design is that the thrown-out oil droplets can be basically recovered, thereby avoiding the thrown-out oil droplets from polluting the working environment.

[0026] Furthermore, mounting holes 101 are formed through both ends of the oil collecting cover 1 , and the mounting holes 101 can be used to facilitate the installation of the whole at a desired position (such as by fixing with bolts).

[0027] Furthermore, an interference fit sealing ring 7 is provided at the connection between the oil level sensor 6 and the oil collecting hood 1, wherein a detachable dustproof net may also be provided above the oil level sensor 6 to play a dustproof role, thereby improving the overall monitoring accuracy.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An internal leakage alarm device for an electric oil pump comprises a pump housing formed by a bottom cover and an upper cover, and is characterized in that: The outer end cover of the pump casing is provided with a leakage alarm assembly, and the leakage alarm assembly includes an oil collecting hood, and the oil collecting hood has an oil collecting chamber for accommodating the pump casing and is used to collect oil leaked from the pump casing; an oil level sensor for monitoring the oil level inside the oil collecting chamber is embedded at the bottom of the oil collecting chamber.

2. The pump body internal leakage alarm device of the electric oil pump according to claim 1, characterized in that: The bottom inner wall of the oil collecting hood is provided with a slot for inserting the bottom end of the bottom cover, and the oil collecting hood and the bottom cover are fixed together by bolts.

3. The pump body internal leakage alarm device of the electric oil pump according to claim 1, characterized in that: The bottom inner wall of the oil collecting cover is provided with an oil guiding slope inclined toward one side, and the oil level sensor is located at the bottom end of the oil guiding slope.

4. The pump body internal leakage alarm device of the electric oil pump according to claim 1, characterized in that: The pump housing is internally provided with a gear set for pumping oil, and a driving gear in the gear set is provided with a connecting shaft with one end extending out of the upper cover.

5. The pump body internal leakage alarm device of the electric oil pump according to claim 1, characterized in that: The upper end surface of the oil collecting hood is 3 to 5 cm higher than the upper end surface of the upper cover.

6. The pump body internal leakage alarm device of the electric oil pump according to claim 1, characterized in that: Both ends of the oil collecting cover are penetrated with mounting holes.

7. The pump body internal leakage alarm device of the electric oil pump according to claim 1, characterized in that: A sealing ring with interference fit is provided at the connection between the oil level sensor and the oil collecting cover, and the oil level sensor is connected to an external control terminal via the sensor.

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