Miniature brushless oil pump

Abstract

The utility model relates to a miniature brushless oil pump, which belongs to the technical field of oil pump supports and comprises an oil pump body and a bottom plate, the oil pump body comprises an oil pump front cover, a gear carrier and an oil pump rear cover, the oil pump front cover is fixed on one side of the gear carrier, the oil pump rear cover is fixed on the other side of the gear carrier, and the gear carrier comprises a working disc and a connecting convex disc positioned on one side of the working disc. A gear groove is formed in the middle of the working disc, a tangent plane is arranged on the edge of the side, close to the gear groove, of the working disc, a trapezoid-shaped groove is formed between the tangent plane on the working disc and the connecting convex disc, the bottom plate is fixedly installed in the trapezoid-shaped groove, and the bottom face of the bottom plate is horizontally consistent with the outer circle of the oil pump front cover and the outer circle of the oil pump rear cover. The split type detachable support is adopted, the bottom plate is fixed in the trapezoid-shaped groove of the gear carrier to be in seamless butt joint, the bottom plate and the oil pump body are integrated, the bottom face of the bottom plate is flush with the outer circle of the oil pump, installation is more stable and more attached, the oil pump is simple and attractive, and meanwhile space is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil pump support technical field, especially a kind of micro brushless oil pump. BACKGROUND

[0002] Micro brushless oil pump is a kind of both portable and compact pump, is widely used in small device such as model engine. Currently, some oil pumps adopt integrated processing support, some adopt welded support or have no support, the shortcoming of integrated support is material, troublesome, high cost, and narrow space needs to be disassembled when it is impossible to remove;Welded support processing needs welding, there is damage risk to oil pump, and welded support is not beautiful after welding, welded support is generally sheet metal processing, support is prone to deformation, and also welded support cannot be disassembled after welding. Therefore, we propose a split type detachable support for fixing and installing oil pump. SUMMARY

[0003] The utility model is to provide a kind of micro brushless oil pump, to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of micro brushless oil pump, including oil pump main body and bottom plate, the oil pump main body includes oil pump front cover, gear carrier and oil pump rear cover, the oil pump front cover is fixed in gear carrier one side, the oil pump rear cover is fixed in the other side of gear carrier, the gear carrier includes work disc and the connecting convex disc located in the side of work disc, gear groove is set in the middle part of work disc, the edge of work disc is equipped with tangent plane near gear groove side, the tangent plane on work disc and the connecting convex disc form trapezoidal groove between, the bottom plate is fixed in trapezoidal groove, bottom plate bottom surface and the outer circle of oil pump front cover and oil pump rear cover keep horizontal consistency.

[0006] Preferably, the diameter of the connecting convex disc is less than the diameter of the work disc, and the connecting ring groove is formed between the outer circle of the connecting convex disc and the outer circle of the work disc, and the oil pump rear cover is clamped on the connecting convex disc through the connecting ring groove.

[0007] Preferably, two first screw holes are formed in the middle part of the bottom plate, and the bottom plate extends to the outside of the gear carrier at both ends, two second screw holes are formed in the two ends of the bottom plate outside the gear carrier, the first screw hole is connected with the first bolt, the bottom plate is fixed in the trapezoidal groove through the first bolt, the top surface of the bottom plate is attached to the tangent plane of the work disc, and the bottom plate is fixed with the oil pump through the second screw hole and the bolt.

[0008] Preferably, two oil holes are formed in the middle part of the oil pump front cover, two fixing holes are formed in the oil pump front cover on both sides of the two oil holes, the fixing hole is fixed on the work disc through the second bolt, the oil hole is connected with the gear groove, and the oil pipe joint is installed on the oil hole.

[0009] Preferably, the oil pump rear cover is internally provided with a motor cavity, and a wiring port is formed in the side wall of the oil pump rear cover.

[0010] Compared with the prior art, the oil pump has the advantages that:

[0011] The bottom plate is fixed in the trapezoidal groove of the gear frame in seamless butt joint, the bottom plate is integrated with the oil pump body, the bottom surface of the bottom plate is flush with the outer circle of the oil pump, and the installation is more stable and more fitted, simple and beautiful while saving space; the position of the bottom plate is set at the maximum place of gear vibration effort below the gear groove, and the position is the effort point of gear rotation, and the installation of the bottom plate at the position helps to reduce the swing of the oil pump and is stable and safe. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic view of the utility model;

[0013] Figure 2 is an exploded view of the structure of the utility model;

[0014] Figure 3 is a side view of the structure of the utility model;

[0015] Figure 4 is a structural schematic view of the gear frame of the utility model.

[0016] REFERENCE NUMERALS

[0017] 1. bottom plate, 101. first screw hole, 102. second screw hole, 103. first bolt, 2. oil pump front cover, 201. second bolt, 202. fixing hole, 203. oil hole, 204. oil pipe joint, 3. gear frame, 301. gear groove, 302. trapezoidal groove, 303. connecting convex disc, 304. working disc, 305. connecting ring groove, 4. oil pump rear cover, 401. motor cavity, 402. wiring port. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined object of the application, the specific embodiments, structures, features and effects thereof according to the present application are described in detail as follows in combination with the drawings and preferred embodiments.

[0019] For example, Figures 1-4As shown, a miniature brushless oil pump comprises an oil pump body and a bottom plate 1, the oil pump body comprises an oil pump front cover 2, a gear carrier 3 and an oil pump rear cover 4, the oil pump front cover 2 is fixed on one side of the gear carrier 3, the oil pump rear cover 4 is fixed on the other side of the gear carrier 3, the gear carrier 3 comprises a working disc 304 and a connecting convex disc 303 located on one side of the working disc 304, the diameter of the connecting convex disc 303 is smaller than that of the working disc 304, a connecting ring groove 305 is formed between the outer circle of the connecting convex disc 303 and the outer circle of the working disc 304, the oil pump rear cover 4 is clamped on the connecting convex disc 303 through the connecting ring groove 305, the outer diameter of the oil pump rear cover 4 is the same as the diameter of the working disc 304, and after clamping, the outer circles of the gear carrier 3 and the oil pump rear cover 4 are kept consistent.

[0020] A gear groove 301 is formed in the middle of the working disc 304, a cutting surface is arranged on the edge of the working disc 304 close to the gear groove 301, a trapezoidal groove 302 is formed between the cutting surface on the working disc 304 and the connecting convex disc 303, and the bottom plate 1 is fixedly installed in the trapezoidal groove 302; two first screw holes 101 are formed in the middle of the bottom plate 1, the bottom plate 1 extends to the outside of the gear carrier 3 at both ends, two second screw holes 102 are formed in the two ends of the bottom plate 1 outside the gear carrier 3, a first bolt 103 is connected to the first screw hole 101, the bottom plate 1 is fixed in the trapezoidal groove 302 through the first bolt 103, the top surface of the bottom plate 1 is attached to the cutting surface of the working disc 304, the bottom surface of the bottom plate 1 is kept consistent with the outer circles of the oil pump front cover 2 and the oil pump rear cover 4, and the bottom plate 1 fixes the oil pump through the second screw hole 102 and a bolt.

[0021] Two oil holes 203 are formed in the middle of the oil pump front cover 2, two fixing holes 202 are formed on the oil pump front cover 2 on both sides of the two oil holes 203, the fixing holes 202 are fixed on the working disc 304 through a second bolt 201, the oil holes 203 are communicated with the gear groove 301, and an oil pipe joint 204 is installed on the oil hole 203; a motor cavity 401 is arranged in the oil pump rear cover 4 for installing a motor; a wiring port 402 is formed on the side wall of the oil pump rear cover 4 for supplying power to the motor.

[0022] The utility model adopts the split type detachable support, seamlessly butt joints by fixing the bottom plate 1 in the trapezoidal groove 302 of the gear carrier 3, the bottom plate 1 is integrated with the oil pump body, the bottom surface of the bottom plate 1 is flush with the outer circle of the oil pump, is more stable and more attached during installation, is simple and beautiful and saves the space at the same time;The position of the bottom plate 1 is set below the gear groove 301, which is the most difficult place for gear vibration, this position is the difficult point of gear rotation, and installing the bottom plate 1 at this position helps to reduce the shaking of the oil pump and is stable and safe.

[0023] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A micro brushless oil pump characterized by: The oil pump comprises an oil pump body and a bottom plate, the oil pump body comprises an oil pump front cover, a gear frame and an oil pump rear cover, the oil pump front cover is fixed on one side of the gear frame, the oil pump rear cover is fixed on the other side of the gear frame, the gear frame comprises a working disc and a connecting convex disc on one side of the working disc, a gear groove is formed in the middle of the working disc, a cutting surface is arranged on the edge of the working disc near the gear groove, a trapezoidal groove is formed between the cutting surface on the working disc and the connecting convex disc, the bottom plate is fixedly installed in the trapezoidal groove, and the bottom surface of the bottom plate is kept horizontal with the outer circle of the oil pump front cover and the oil pump rear cover.

2. A micro brushless oil pump according to claim 1, characterized in that: The diameter of the connecting convex disc is smaller than that of the working disc, a connecting ring groove is formed between the outer circle of the connecting convex disc and the outer circle of the working disc, and the oil pump rear cover is clamped on the connecting convex disc through the connecting ring groove.

3. A micro brushless oil pump according to claim 1, characterized in that: Two first screw holes are formed in the middle of the bottom plate, the bottom plate extends to the outside of the gear frame at both ends, two second screw holes are formed in the two ends of the bottom plate outside the gear frame, a first bolt is connected to the first screw hole, the bottom plate is fixed in the trapezoidal groove through the first bolt, the top surface of the bottom plate is attached to the cutting surface of the working disc, and the bottom plate is fixed to the oil pump through the second screw hole and the bolt.

4. The microminiature brushless oil pump according to claim 1, wherein: Two oil holes are formed in the middle of the oil pump front cover, two fixing holes are formed in the oil pump front cover on the two sides of the oil holes, the fixing holes are fixed on the working disc through a second bolt, the oil holes are communicated with the gear groove, and an oil pipe joint is installed on the oil hole.

5. A micro brushless oil pump according to claim 1, characterized in that: A motor cavity is arranged in the oil pump rear cover, and a wiring port is formed in the side wall of the oil pump rear cover.

Images