CN203239902U - Cam stator blade oil pump used for speed-changing gearbox - Google Patents
Cam stator blade oil pump used for speed-changing gearbox Download PDFInfo
- Publication number
- CN203239902U CN203239902U CN 201320231572 CN201320231572U CN203239902U CN 203239902 U CN203239902 U CN 203239902U CN 201320231572 CN201320231572 CN 201320231572 CN 201320231572 U CN201320231572 U CN 201320231572U CN 203239902 U CN203239902 U CN 203239902U
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- oil
- oil pump
- transmission shaft
- feed ring
- hole
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Abstract
Disclosed is a cam stator blade oil pump used for a speed-changing gearbox. The cam stator blade oil pump used for the speed-changing gearbox mainly comprises a transmission shaft, an oil inlet ring, an oil pump press plate, oil discharge pins, a spring, an oil absorbing rubber pipe, a filter and an oil pump fixing piece. The cam stator blade oil pump used for the speed-changing gearbox has the advantages of being compact in structure, small in size, low in noise, easy to install, safe, reliable, capable of providing sufficient lubricating oil for parts on a shaft, and the like.
Description
Technical field
The utility model relates to a kind of cam stator vane oil pump for speed-changing gear box, belong to the oil-path lubricating device of gear train assembly.
Background technique
The splash lubrication that the lubricant method of existing speed-changing gear box adopts mostly on the market and the pressure lubrication of gear oil pump fuel feeding, but splash lubrication is difficult to sufficient lubrication to parts on shaft especially needle bearing etc., the gear pump cost is higher and have noise and vibration, and these two kinds of lubricating systems all are difficult to well satisfy the lubricating requirement of speed-changing gear box.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provide a kind of compact structure, small volume, low noise, install simple, safe and reliable, can provide sufficient lubricant oil to parts on shaft, can improve the cam stator vane oil pump that is used for speed-changing gear box of existing gear transmission lubrication system.
The purpose of this utility model is finished by following technical solution, a kind of cam stator vane oil pump for speed-changing gear box, it is mainly by transmission shaft, oil-feed ring, oil pump pressing plate, the oil extraction pin, spring, oil suction rubber tube, filter, the oil pump fixed block forms, and offers a through hole vertical with axis on the described transmission shaft and forms the oil extraction duct along axis boring, and the two holes intersection on the transmission shaft is communicated; The spring that two oil extraction pins are placed by the centre is placed in the through hole on the transmission shaft, and being equipped with an inner ring surface on the transmission shaft is the oil-feed ring of an eccentric cylinder, and the exterior edge face of two oil extraction pins contacts with the inner ring surface of oil-feed ring is tangent; The both sides of oil-feed ring are fixed with respectively the oil pump pressing plate, and this oil pump pressing plate and oil-feed ring and oil extraction pin are formed with two inner chambers that Volume Changes can occur along with the rotation of transmission shaft; Be provided with the oil-sucking hole of communication with cavity on the described oil-feed ring, an oil suction rubber tube one end is connected in described oil-sucking hole, and the other end connects filter.
Described oil pump fixed block one end is bolted on described two oil pump pressing plates, and the other end is fixed on the part of fixing with respect to transmission shaft, and makes the oil-feed ring become the stator of oil pump.
The shaft hole sleeve that described oil pump pressing plate is offered by the centre is connected on the transmission shaft of oil-feed ring both sides, and described axis hole and described transmission shaft transition fit.
The oil extraction pin inside of installing in the transmission shaft is respectively arranged with axial bore, and described oil extraction pin mills out one section plane that communicates with axial bore on the cylndrical surface, and consists of an oil drain passage part; The outer end, cylndrical surface of described oil extraction pin mills out one section plane with oil pump pressing plate planes overlapping, and this plane and oil drainage hole plane are angled.
The oil-sucking hole that arranges on the described oil-feed ring, axis and the oil-feed ring external cylindrical surface axes intersect of its axis and the eccentric circle center of circle and oil-sucking hole vertical with the line in the external cylindrical surface center of circle.
The utility model passes through the oil pump fixing-assembly with the oil-feed ring, the oil pump pressing plate is fixed, rotate by transmission shaft again, drive the oil extraction pin and slide along the oil-feed ring inner surface, change by changing oil-feed ring cavity volume, when oil-feed ring one side cavity volume becomes large, oil sucks from the oil inlet hole of oil-feed ring, simultaneously oil-feed ring opposite side cavity volume diminishes, and oil is pressed into the transmission shaft endoporus from the hole on the oil extraction pin and discharges, thereby realizes the pump oil process of cam pump oil suction, oil extraction.
The utlity model has compact structure, small volume, low noise is installed simply, and is safe and reliable, can provide sufficient lubricated wet goods characteristics to parts on shaft.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: shown in Figure 1, the utility model is mainly by transmission shaft, oil-feed ring, oil pump pressing plate, the oil extraction pin, spring, the oil suction rubber tube, filter, the oil pump fixed block forms, offer a through hole vertical with axis on the described transmission shaft 1 and form the oil extraction duct along axis boring, the two holes intersection on the transmission shaft 1 is communicated; The springs that two oil extraction pins 3,4 are placed by the centre are placed in the through hole on the transmission shaft, and being equipped with an inner ring surface on the transmission shaft is that 5, two oil extraction pins 3 of oil-feed ring of an eccentric cylinder, 4 exterior edge face contact with the inner ring surface of oil-feed ring 5 is tangent; The both sides of oil-feed ring 5 are fixed with respectively oil pump pressing plate 6, and this oil pump pressing plate 6 and oil-feed ring 5 and oil extraction pin 3,4 are formed with two inner chambers that Volume Changes can occur along with the rotation of transmission shaft 1; Oil-sucking hole 9, one oil suction rubber tubes 8 one ends that are provided with communication with cavity on the described oil-feed ring 5 are connected in described oil-sucking hole 9, and the other end connects filter.
Described oil pump fixed block one end is bolted on described two oil pump pressing plates 6, and the other end is fixed on the part of fixing with respect to transmission shaft 1, and makes oil-feed ring 5 become the stator of oil pump.
The shaft hole sleeve that described oil pump pressing plate 6 is offered by the centre is connected on the transmission shaft 1 of oil-feed ring 5 both sides, and described axis hole and described transmission shaft 1 transition fit.
Shown in the figure, oil extraction pin 3,4 inside of installing in the transmission shaft 1 are respectively arranged with axial bore, mill out one section plane that communicates with axial bore on described oil extraction pin 3,4 cylndrical surface, and consist of an oil drain passage part; Described oil extraction pin 3,4 outer end, cylndrical surface mill out one section plane with oil pump pressing plate 6 planes overlapping, and this plane and oil drainage hole plane are angled.
The oil-sucking hole that arranges on the described oil-feed ring 5, its axis and the eccentric circle center of circle are followed axis and the oil-feed ring 5 external cylindrical surface axes intersect of the vertical and oil-sucking hole of the line in the external cylindrical surface center of circle.
Oil pump described in the utility model is to be assembled by following:
Oil extraction pin 3,4 is contained in the two ends of spring 2, makes spring 2 in oil extraction pin 3,4 axial bore; With spring 2 on oil extraction pin 3, the 4 whole transmission shafts 1 of packing in the hole vertical with axis; Oil-feed ring 5 is inserted on the rotatingshaft 1 and with oil extraction pin 3,4 is pressed into oil-feed ring inner ring surface, make oil extraction pin 3,4 outer end arc surface and oil-feed ring 5 inner ring surfaces tightly tangent, should notice that a side porose on oil extraction pin 3,4 cylndrical surface is consistent with transmission shaft 1 sense of rotation this moment; Oil pump pressing plate 6 is inserted in transmission shaft 1, be divided in two side compressions of oil-feed ring 5 and use bolton, make oil pump pressing plate 6 and oil-feed ring 5 and oil extraction pin 3,4 form two independent inner chambers, should guarantee that on installation dimension oil-feed ring 5 external cylindrical surfaces and transmission shaft 1 have good coaxality, thereby guarantee that the inner ring surface of oil-feed ring 5 plays the effect of cam; Oil suction rubber tube 8 one ends are connected on oil-feed ring 5 external interfaces, and the other end is taken over filter; Oil pump fixed block 10 1 ends are bolted on oil pump pressing plate 6, and the other end is fixed in other with respect on the fixing part of transmission shaft 1, makes oil-feed ring 5 become the stator of oil pump.
Operation of oil pump principle described in the utility model is:
The working procedure of oil pump is described below in conjunction with Fig. 1, after transmission shaft 1 rotates, drive oil extraction pin 3,4 rotate, oil extraction pin 3,4 outer end arc surfaces slide along the inner ring surface of oil-feed ring 5, because the inner ring surface of oil-feed ring 5 is eccentric circle, so oil pump pressing plate 6 and oil-feed ring 5 and oil extraction pin 3,4 two inner chambers that form are along with the rotation generation Volume Changes of transmission shaft 1, simultaneously oil extraction pin 3,4 do the piston motion in the hole of rotatingshaft 1, when oil extraction pin 3,4 with the oil-sucking hole of oil-feed ring 5 point-blank the time, oil extraction pin 3,4 porose plane is compressed in the hole of transmission shaft 1, is transition point this moment; When transmission shaft 1 clockwise rotates, oil extraction pin 4 one section porose plane are compressed in the hole always, and right-side cavity is become greatly gradually by the minimum cavity volume, and oil is sucked, and this moment, right chamber was oil sucting cavity; Oil extraction pin 3 stretches out gradually, and simultaneously the chamber, left side is diminished gradually by maximum cavity volume, when the hole is stretched out on oil extraction pin 3 one section porose plane, oil is forced into oil drainage hole (being the transmission shaft axis hole) from the hole of oil extraction pin 3 discharges, and this moment, left chamber was oil-discharging cavity.After turning over 180 °, turn over again a transition point, then original oil sucting cavity becomes oil-discharging cavity after being filled oil, and oil-discharging cavity originally becomes oil sucting cavity, repeats said process, and so moving in circles namely consists of the working procedure of oil pump.
Claims (5)
1. cam stator vane oil pump that is used for speed-changing gear box, it is mainly by transmission shaft, oil-feed ring, oil pump pressing plate, the oil extraction pin, spring, the oil suction rubber tube, filter, the oil pump fixed block forms, it is characterized in that offering on the described transmission shaft (1) through hole vertical with axis and form the oil extraction duct along axis boring, the two holes intersection on the transmission shaft (1) is communicated; The spring that two oil extraction pins (3,4) are placed by the centre is placed in the through hole on the transmission shaft (1), being equipped with an inner ring surface on the transmission shaft (1) is the oil-feed ring (5) of an eccentric cylinder, the exterior edge face of two oil extraction pins (3,4) and tangent contact of inner ring surface of oil-feed ring (5); The both sides of oil-feed ring (5) are fixed with respectively oil pump pressing plate (6), and this oil pump pressing plate (6) and oil-feed ring (5) and oil extraction pin (3,4) are formed with two inner chambers that Volume Changes can occur along with the rotation of transmission shaft (1); Be provided with the oil-sucking hole of communication with cavity on the described oil-feed ring (5), an oil suction rubber tube (8) one ends are connected in described oil-sucking hole, and the other end connects filter.
2. the cam stator vane oil pump for speed-changing gear box according to claim 1, it is characterized in that described oil pump fixed block one end is bolted on described two oil pump pressing plates (6), the other end is fixed on the part of fixing with respect to transmission shaft (1), and makes oil-feed ring (5) become the stator of oil pump.
3. the cam stator vane oil pump for speed-changing gear box according to claim 1 and 2, it is characterized in that the shaft hole sleeve that described oil pump pressing plate (6) is offered by the centre is connected on the transmission shaft (1) of oil-feed ring (5) both sides, and described axis hole and described transmission shaft (1) transition fit.
4. the cam stator vane oil pump for speed-changing gear box according to claim 3, it is characterized in that oil extraction pin (3, the 4) inside of installing in the transmission shaft (1) is respectively arranged with axial bore, described oil extraction pin (3,4) mills out one section plane that communicates with axial bore on the cylndrical surface, and consists of an oil drain passage part; The outer end, cylndrical surface of described oil extraction pin (3,4) mills out one section plane with oil pump pressing plate (6) planes overlapping, and this plane and oil drainage hole plane are angled.
5. the cam stator vane oil pump for speed-changing gear box according to claim 3, it is characterized in that the upper oil-sucking hole that arranges of described oil-feed ring (5), axis and oil-feed ring (5) the external cylindrical surface axes intersect of the vertical and oil-sucking hole of the line in the external cylindrical surface center of circle followed in its axis and the eccentric circle center of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320231572 CN203239902U (en) | 2013-05-02 | 2013-05-02 | Cam stator blade oil pump used for speed-changing gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320231572 CN203239902U (en) | 2013-05-02 | 2013-05-02 | Cam stator blade oil pump used for speed-changing gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239902U true CN203239902U (en) | 2013-10-16 |
Family
ID=49317202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320231572 Expired - Fee Related CN203239902U (en) | 2013-05-02 | 2013-05-02 | Cam stator blade oil pump used for speed-changing gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825677A (en) * | 2018-06-23 | 2018-11-16 | 伟攀(上海)机械设备有限公司 | A kind of compound hydrodynamic bearing non-contact seals oil inlet ring of hydraulic clutch |
-
2013
- 2013-05-02 CN CN 201320231572 patent/CN203239902U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825677A (en) * | 2018-06-23 | 2018-11-16 | 伟攀(上海)机械设备有限公司 | A kind of compound hydrodynamic bearing non-contact seals oil inlet ring of hydraulic clutch |
| CN108825677B (en) * | 2018-06-23 | 2019-11-15 | 伟攀(上海)机械设备有限公司 | A kind of compound hydrodynamic bearing non-contact seals oil inlet ring of hydraulic clutch |
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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: 20131016 Termination date: 20210502 |