CN204704595U - A kind of tooth-like oil pump modified node method - Google Patents
A kind of tooth-like oil pump modified node method Download PDFInfo
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- CN204704595U CN204704595U CN201520363680.3U CN201520363680U CN204704595U CN 204704595 U CN204704595 U CN 204704595U CN 201520363680 U CN201520363680 U CN 201520363680U CN 204704595 U CN204704595 U CN 204704595U
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Abstract
The utility model relates to a kind of tooth-like oil pump modified node method, includes housing, transmission shaft, driving gear, driven gear and driven shaft; Axially the first groove is provided with at the tooth paddy place of described driving gear; Axially the second groove is provided with at the tooth paddy place of described driven gear; In described driving gear, the front surface of each driving tooth and rear surface are umbilicate arcuate surface; In described driven gear, the front surface of each driven tooth and rear surface are umbilicate arcuate surface.The technological scheme of the application by arranging groove structure on driving gear and driven gear, make between driving gear and driven gear stored in machine oil amount increase, the area at the tooth paddy place of gear is increased, and then suction increases, and be not easy to produce hole, thus can improve the rotating speed of oil pump.
Description
Technical field
The utility model belongs to lubricant oil conveying technology field, refers to the tooth-like oil pump modified node method of a kind of automobile especially.
Background technique
The effect of oil pump is after machine oil is brought up to certain pressure, is sent on the moving surface of each part of motor forcibly, to reduce the wearing and tearing on each part movement surface of motor.Fuel pump structure is divided into gear type oil pump and rotor-type oil pump two class.
The feature of gear type oil pump is reliable operation, and structure is simple, easily manufactured higher with pump oil pressure, so be widely used.Its working principle is when the engine operates, actuation gear on camshaft drives the driving gear of oil pump, the driving gear be fixed on driving gear shaft is rotated, thus drive the reciprocal rotation of driven tooth crop rotation, machine oil is delivered to out oil pocket from oil suction chamber along backlash and pump wall, like this, just form low pressure at oil suction chamber place and form suction, the machine oil inspiration oil suction chamber in oil sump, because driving gear and driven gear constantly rotate, machine oil is just constantly pressed to the position of needs.
But the deficiency of gear type oil pump is, if rotating speed is too high, then because the effect of centrifugal force will cause the oil-filled deficiency of tooth paddy to form hole, make the decrease in efficiency of oil pump, therefore, the rotating speed of gear type oil pump can only lower than 3000rpm, and peripheral velocity is within 5-6m/s.
Model utility content
The purpose of this utility model is by proposing improvement opportunity scheme to the oil pump of existing technology, pass through the technical program, the rotating speed that can overcome existing gear type oil pump can only lower than the situation of 3000rpm, the rotating speed of gear type oil pump is made to bring up to 3000rpm, and the stabilised efficiency of oil pump.
The utility model is achieved through the following technical solutions:
A kind of tooth-like oil pump modified node method, includes housing, transmission shaft, driving gear, driven gear and driven shaft;
Described driving gear engages with described driven gear and is arranged in described housing; One end of described transmission shaft is fixed through described housing and described driving gear; Described driven shaft is through after described driven gear, and the two ends of described driven shaft are connected with described housing into rotation;
Axially the first groove is provided with at the tooth paddy place of described driving gear; Axially the second groove is provided with at the tooth paddy place of described driven gear;
In described driving gear, the front surface of each driving tooth and rear surface are umbilicate arcuate surface; In described driven gear, the front surface of each driven tooth and rear surface are umbilicate arcuate surface.
In described driving gear, the front surface of each driving tooth and rear surface are respectively provided with first oil guide slot, and one end of described first oil guide slot is communicated with described first groove, and the other end has opening at described crown place; In described driven gear, the front surface of each driven tooth and rear surface are respectively provided with second oil guide slot, and one end of described second oil guide slot is communicated with described second groove, and the other end has opening at described crown place.
Described first oil guide slot is when tooth root extends to crown direction, and the width of oil guide slot reduces gradually; The width of described second oil guide slot is constant.
The volume of described first groove is greater than the volume of described second groove.
In described driving gear, two sides of each driving tooth and described first groove connection are respectively formed with a protruding structure, are respectively the first protruding structure and the second protruding structure.
In described driven gear, two sides of each driven tooth and described second groove connection are respectively formed with a protruding structure, are respectively the 3rd protruding structure and the 4th protruding structure.
The width of described first groove is greater than the width of described second groove.
The degree of depth of described first groove is greater than the degree of depth of described second groove.
The beneficial effects of the utility model are:
The technological scheme of the application by arranging groove structure on driving gear and driven gear, make between described driving gear and driven gear stored in machine oil amount increase, carrying out in working procedure, the area at the tooth paddy place of gear is increased, and then suction increases, and be not easy to produce hole, thus can improve the rotating speed of oil pump.
By different from the volume of the groove that driven gear is arranged at driving gear, the machine oil at driving gear place are not emptied completely, thus avoid the generation in hole.
Accompanying drawing explanation
Fig. 1 is the utility model fuel pump structure schematic diagram;
Fig. 2 is the A portion enlarged side view of Fig. 1;
Fig. 3 is the B portion enlarged side view of Fig. 1;
Fig. 4 is the plan view of Fig. 2;
Fig. 5 is the plan view of Fig. 3.
Description of reference numerals
1 housing, 2 driving gears, 3 transmission shafts, 4 driven gears, 5 driven shafts, 21 first grooves, 22 first protruding structures, 23 second protruding structures, 24 driving tooths, 25 first oil guide slot, 26 umbilicate arcuate surface, 41 second grooves, 42 the 3rd protruding structures, 43 the 4th protruding structures, 44 driven tooth, 45 second oil guide slot, 46 umbilicate arcuate surface.
Embodiment
Describe the technical solution of the utility model in detail by the following examples, following embodiment is only exemplary, only can be used for explaining and the technical solution of the utility model being described, and can not be interpreted as being the restriction to technical solutions of the utility model.
Embodiment 1
The utility model provides a kind of tooth-like oil pump modified node method, as shown in Figures 1 to 5, includes housing 1, transmission shaft 3, driving gear 2, driven gear 4 and driven shaft 5; In this application, housing 1, transmission shaft 3 and driven shaft 5 are prior art, not within the scope of the application's improvement opportunity, therefore, in this application, are not described in detail said structure.
Described driving gear 2 engages with described driven gear 4 and is arranged in described housing 1; One end of described transmission shaft 3 is fixed through described housing 1 and described driving gear 2; Described driven shaft 5 is through after described driven gear 4, and two ends and the described housing 1 of described driven shaft 5 are rotationally connected; In this application, annexation and the assembling mode of each parts of oil pump are prior art, the assembling of the oil pump of prior art and annexation are applicable to the technological scheme of the application completely, therefore, in this application, the connection and assembling etc. of each parts of oil pump are not described in detail.
All technological improvements of the application are all carried out around driving gear and driven gear, and the number of teeth etc. of driving gear and driven gear is also prior art.
Axially the first groove 21 is provided with at the tooth paddy place of described driving gear 2; Axially the second groove 41 is provided with at the tooth paddy place of described driven gear 4.By arranging groove structure on driving gear and driven gear, make between described driving gear and driven gear stored in machine oil amount increase, carrying out in working procedure, the area at the tooth paddy place of gear is increased, and then suction increases, and be not easy to produce hole, thus can improve the rotating speed of oil pump.
The volume of described first groove 21 is greater than the volume of described second groove 41.By different from the volume of the groove that driven gear is arranged at driving gear, the machine oil at driving gear place are not emptied completely, thus avoid the generation in hole.
In described driving gear 2, the front surface of each driving tooth 24 and rear surface are umbilicate arcuate surface 26.In described driven gear 4, the front surface of each driven tooth 44 and rear surface are umbilicate arcuate surface 46.
In this application, the front surface of each driving tooth 24 and rear surface refer to two planes corresponding to working gear face; Front surface in driven gear is identical with the understanding of the front surface in driving gear and rear surface with the understanding of rear surface.
In described driving gear 2, the front surface of each driving tooth 24 and rear surface are respectively provided with first oil guide slot 25, and one end of described first oil guide slot 25 is communicated with described first groove 21, and the other end has opening at described crown place, is longitudinal setting; In described driven gear 4, the front surface of each driven tooth 44 and rear surface are respectively provided with second oil guide slot 45, and one end of described second oil guide slot 45 is communicated with described second groove 41, and the other end has opening at described crown place, is longitudinal setting.Described first oil guide slot 25 is when tooth root extends to crown direction, and the width of oil guide slot reduces gradually; The width of described second oil guide slot 45 is constant.Such structure, adds the oil transportation amount of driving gear and driven gear simultaneously, and the amount increased is not identical.
In described driving gear 2, two sides of each driving tooth 24 and described first groove 21 connection are respectively formed with a protruding structure, are respectively the first protruding structure 22 and the second protruding structure 23.Above-mentioned protruding structure can play and play certain restriction to the outflow of the machine oil entered in groove, can form hole after all flowing out to avoid the machine oil in tooth.
In described driven gear 4, two sides of each driven tooth 44 and described second groove 41 connection are respectively formed with a protruding structure, are respectively the 3rd protruding structure 42 and the 4th protruding structure 43.Above-mentioned protruding structure can play and play certain restriction to the outflow of the machine oil entered in groove, can form hole after all flowing out to avoid the machine oil in tooth.
The width of described first groove 21 is greater than the width of described second groove 41.
Embodiment 2
The utility model provides a kind of tooth-like oil pump modified node method, includes housing, transmission shaft, driving gear, driven gear and driven shaft; In this application, housing, transmission shaft and driven shaft are prior art, not within the scope of the application's improvement opportunity, therefore, in this application, are not described in detail said structure.
Described driving gear engages with described driven gear and is arranged in described housing; One end of described transmission shaft is fixed through described housing and described driving gear; Described driven shaft is through after described driven gear, and the two ends of described driven shaft are connected with described housing into rotation; In this application, annexation and the assembling mode of each parts of oil pump are prior art, the assembling of the oil pump of prior art and annexation are applicable to the technological scheme of the application completely, therefore, in this application, the connection and assembling etc. of each parts of oil pump are not described in detail.
All technological improvements of the application are all carried out around driving gear and driven gear, and the number of teeth etc. of driving gear and driven gear is also prior art.
Axially the first groove is provided with at the tooth paddy place of described driving gear; Axially the second groove is provided with at the tooth paddy place of described driven gear.By arranging groove structure on driving gear and driven gear, make between described driving gear and driven gear stored in machine oil amount increase, carrying out in working procedure, the area at the tooth paddy place of gear is increased, and then suction increases, and be not easy to produce hole, thus can improve the rotating speed of oil pump.
The volume of described first groove is greater than the volume of described second groove.By different from the volume of the groove that driven gear is arranged at driving gear, the machine oil at driving gear place are not emptied completely, thus avoid the generation in hole.
In described driving gear, the front surface of each tooth and rear surface are umbilicate arcuate surface.
In described driven gear, the front surface of each tooth and rear surface are umbilicate arcuate surface.
In this application, the front surface of each tooth and rear surface refer to two planes corresponding to working gear face; Front surface in driven gear is identical with the understanding of the front surface in driving gear and rear surface with the understanding of rear surface.
In described driving gear, the front surface of each tooth and rear surface are respectively provided with first oil guide slot, and one end of described first oil guide slot is communicated with described first groove, and the other end has opening at described crown place; In described driven gear, the front surface of each tooth and rear surface are respectively provided with second oil guide slot, and one end of described second oil guide slot is communicated with described second groove, and the other end has opening at described crown place.Described first oil guide slot is when tooth root extends to crown direction, and the width of oil guide slot reduces gradually; The width of described second oil guide slot is constant.Such structure, adds the oil transportation amount of driving gear and driven gear simultaneously, and the amount increased is not identical.
In described driving gear, two sides of each tooth and described first groove connection are respectively formed with a protruding structure, are respectively the first protruding structure and the second protruding structure.Above-mentioned protruding structure can play and play certain restriction to the outflow of the machine oil entered in groove, can form hole after all flowing out to avoid the machine oil in tooth.
In described driven gear, two sides of each tooth and described second groove connection are respectively formed with a protruding structure, are respectively the 3rd protruding structure and the 4th protruding structure.Above-mentioned protruding structure can play and play certain restriction to the outflow of the machine oil entered in groove, can form hole after all flowing out to avoid the machine oil in tooth.
The degree of depth of described first groove is greater than the degree of depth of described second groove.
Although this technical solution of the utility model is described in detail, those skilled in the art is all clear, by the amendment carried out the technical program, replacement and modification etc., and all should within the protection domain of the application.
Claims (8)
1. a tooth-like oil pump modified node method, includes housing, transmission shaft, driving gear, driven gear and driven shaft; It is characterized in that:
Described driving gear engages with described driven gear and is arranged in described housing; One end of described transmission shaft is fixed through described housing and described driving gear; Described driven shaft is through after described driven gear, and the two ends of described driven shaft are connected with described housing into rotation;
Axially the first groove is provided with at the tooth paddy place of described driving gear; Axially the second groove is provided with at the tooth paddy place of described driven gear;
In described driving gear, the front surface of each driving tooth and rear surface are umbilicate arcuate surface; In described driven gear, the front surface of each driven tooth and rear surface are umbilicate arcuate surface.
2. tooth-like oil pump modified node method according to claim 1, it is characterized in that: in described driving gear, the front surface of each driving tooth and rear surface are respectively provided with first oil guide slot, one end of described first oil guide slot is communicated with described first groove, and the other end has opening at described crown place; In described driven gear, the front surface of each driven tooth and rear surface are respectively provided with second oil guide slot, and one end of described second oil guide slot is communicated with described second groove, and the other end has opening at described crown place.
3. tooth-like oil pump modified node method according to claim 2, is characterized in that: described first oil guide slot is when tooth root extends to crown direction, and the width of oil guide slot reduces gradually; The width of described second oil guide slot is constant.
4. tooth-like oil pump modified node method according to claim 1, is characterized in that: the volume of described first groove is greater than the volume of described second groove.
5. tooth-like oil pump modified node method according to claim 1, it is characterized in that: in described driving gear, two sides of each driving tooth and described first groove connection are respectively formed with a protruding structure, are respectively the first protruding structure and the second protruding structure.
6. tooth-like oil pump modified node method according to claim 1, it is characterized in that: in described driven gear, two sides of each driven tooth and described second groove connection are respectively formed with a protruding structure, are respectively the 3rd protruding structure and the 4th protruding structure.
7. the tooth-like oil pump modified node method according to claim 1 or 4, is characterized in that: the width of described first groove is greater than the width of described second groove.
8. the tooth-like oil pump modified node method according to claim 1 or 4, is characterized in that: the degree of depth of described first groove is greater than the degree of depth of described second groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363680.3U CN204704595U (en) | 2015-05-29 | 2015-05-29 | A kind of tooth-like oil pump modified node method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363680.3U CN204704595U (en) | 2015-05-29 | 2015-05-29 | A kind of tooth-like oil pump modified node method |
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| Publication Number | Publication Date |
|---|---|
| CN204704595U true CN204704595U (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520363680.3U Expired - Fee Related CN204704595U (en) | 2015-05-29 | 2015-05-29 | A kind of tooth-like oil pump modified node method |
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| CN (1) | CN204704595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268258A (en) * | 2018-10-09 | 2019-01-25 | 宿迁学院 | A kind of ∥ shape compensating groove of external gear rotary pump |
-
2015
- 2015-05-29 CN CN201520363680.3U patent/CN204704595U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268258A (en) * | 2018-10-09 | 2019-01-25 | 宿迁学院 | A kind of ∥ shape compensating groove of external gear rotary pump |
| CN109268258B (en) * | 2018-10-09 | 2023-07-07 | 宿迁学院 | // shape unloading groove of external gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20160529 |