CN207364244U - A kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder - Google Patents

A kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder Download PDF

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Publication number
CN207364244U
CN207364244U CN201721299863.9U CN201721299863U CN207364244U CN 207364244 U CN207364244 U CN 207364244U CN 201721299863 U CN201721299863 U CN 201721299863U CN 207364244 U CN207364244 U CN 207364244U
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China
Prior art keywords
gearbox
retarder
power takeoff
pump
housing
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Application number
CN201721299863.9U
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Chinese (zh)
Inventor
王菲
王伟健
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Shaanxi Fast Gear Co Ltd
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Shaanxi Fast Gear Co Ltd
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Priority to CN201721299863.9U priority Critical patent/CN207364244U/en
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Abstract

It the utility model is related to technical field of mechanical transmission lubrication, the more particularly to a kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder.The utility model is to install spiral oil pump additional on power takeoff, gearbox or Retarder, so as to carry out forced feed lubrication.After the utility model power takeoff, gearbox or Retarder use spiral type oil pump lubrication, lubricant effect is good, can effectively reduce the failure rate of power takeoff, gearbox or Retarder, prolong the service life.

Description

A kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder
Technical field
Technical field of mechanical transmission lubrication is the utility model is related to, it is more particularly to a kind of to be taken using what helicoidal pump was lubricated Power device, gearbox or Retarder.
Background technology
As the important component of power drive system, gearbox, power takeoff and Retarder and vehicle safety Traveling has close relationship.Traditional gearbox is lubricated with power takeoff generally use splashing mode, by road conditions influenced compared with Greatly, easily there is the insufficient lubrication phenomenon such as bearing enclosure, and then produce quality problems.S series gearbox and QHG50A are passed through The forced feed lubrication that axis rear power takeoff assembly passes through the parts such as design complete matched bearings of cycloid crescent gear pump on babinet. Cycloid crescent gear pump constantly produces vacuum by the outer rotor with cycloid conjugate tooth profile and internal rotor in rotary course The characteristic of chamber, oil inlet is realized using fluid pressure difference, there are structure is more complicated, poor in processability, flow pulsation and pressure fluctuation compared with The problem of big.And the negative pressure guiding fluid that Retarder is formed when being then and dallying by interiors of products rotor flows into, axis is carried out The lubrication with oil sealing is held, the phenomenon of insufficient lubrication easily occurs.
Utility model content
In order to solve the above technical problems, the utility model proposes a kind of power takeoff being lubricated using helicoidal pump, speed change Case or Retarder, the power takeoff, gearbox or Retarder are lubricated using spiral oil pump, the spiral oil pump With the big characteristic of simple in structure, easy processing, uniform flow, stable movement, discharge capacity, to power takeoff, gearbox or hydrodynamic retarding Device carries out forced feed lubrication, and lubricating uniform, can effectively improve service life of power takeoff, gearbox or Retarder.
The technical solution that the utility model solves the above problems is:A kind of power takeoff being lubricated using helicoidal pump, become Fast case or Retarder, including input shaft and housing, the housing are power takeoff housing, gear box casing or Retarder Housing, the input shaft are any one shaft in power takeoff, gearbox or Retarder, and first is formed in the housing Cavity, it is characterized in that:
The power takeoff, gearbox or Retarder include helicoidal pump, and the helicoidal pump includes screw rod and pump case, described The second cavity is formed in pump case, screw rod, which is located in pump case, to be formed in the second cavity, and pump case is fixedly connected with the casing;
The input shaft, which rotates, drives screw rod to rotate, and the pump case is equipped with fuel feed hole, the first cavity and the second cavity it Between be equipped with oil outlet.
It is the basic structure of the utility model above, based on the basic structure, the utility model is also made following optimization and changed Into:
Further, above-mentioned pump case is equipped with annular groove, and circlip for hole is equipped with annular groove, and circlip for hole is used In the axial movement of limitation screw rod.
Further, above-mentioned screw rod matches connection with input shaft by internal spline.
Further, above-mentioned housing and pump case faying face is equipped with O-ring seals, and O-ring seals are used to prevent lubricating oil Leakage.
Further, above-mentioned screw rod is installed on pump case by needle bearing.
Further, above-mentioned pump case is fixed on housing by hexagon-headed bolt.
The advantages of the utility model:
1st, the power takeoff of the utility model, gearbox or Retarder are lubricated using spiral oil pump, the oil pump The oil inlet and oil extraction of fluid are mainly realized by the axial thrust produced in helicoidal pump rotary course to fluid, solves traditional pendulum Line crescent gear pump changes in flow rate caused by volumetric efficiency changes under different operating modes.
2nd, the spiral oil pump that the utility model power takeoff, gearbox or Retarder use can be by adjusting helicoidal pump Pitch, outside diameter, the relevant parameter adjusting oil pump displacement such as depth, have that simple in structure, processability is good, discharge capacity is big, flow pulsation With pressure fluctuation it is small the characteristics of.
3rd, after the utility model power takeoff, gearbox or Retarder use spiral type oil pump lubrication, lubricant effect is good, The failure rate of power takeoff, gearbox or Retarder can be effectively reduced, is prolonged the service life.
Brief description of the drawings
Fig. 1 is installation diagram of the utility model embodiment helicoidal pump in power takeoff;
Fig. 2 is the right view of the utility model embodiment helicoidal pump.
Wherein:1st, pump case;2nd, needle bearing;3rd, screw rod;4th, circlip for hole;5th, O-ring seals;6th, input shaft;7、 Housing;8th, hexagon-headed bolt;9th, oil outlet;10th, fuel feed hole.
Embodiment
The embodiment provided below in conjunction with the accompanying drawings is described in detail the utility model:
Only for convenience, in the following description, specific direction term has been used, such as " on ", " under ", "left", "right" etc., is using corresponding attached drawing as reference, the limitation to the utility model can not be considered, when drawing When definition direction changes, the direction that these words represent should be construed to corresponding different directions.
Referring to Fig. 1 and Fig. 2, a kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder, including it is defeated Enter axis 6 and housing 7, housing 7 is power takeoff housing, gear box casing or Retarder housing, and input shaft 6 is power takeoff, becomes One shaft of fast case or Retarder, housing 7 is interior to form the first cavity, and power takeoff, gearbox or Retarder include Helicoidal pump, helicoidal pump include screw rod 3 and pump case 1, form the second cavity in pump case 1, pump case 1 is fixed on shell by hexagon-headed bolt On body 7;
Screw rod 3, which is located in pump case 1, to be formed in the second cavity, and one end of screw rod 3 matches company with input shaft 6 by internal spline Connect, the other end is installed on pump case by needle bearing 2.
Input shaft 6, which rotates, drives screw rod 3 to rotate, and pump case 1 is equipped with fuel feed hole 10, is set between the first cavity and the second cavity There is oil outlet 9.
Pump case 1 is equipped with annular groove, circlip for hole 4 is equipped with annular groove, due to that can produce diagram when screw rod 3 moves Axial force to the left, circlip for hole 4 are used for the axial movement for limiting screw rod 3.
Housing 7 and 1 faying face of pump case are equipped with O-ring seals 5, and O-ring seals 5 are used to prevent lubricating oil from leaking outside.
During assembling, first 2 inner ring of needle bearing is fitted on screw rod 3, then outer ring is fitted in the bearing hole of pump case 1, The helicoidal pump 3 equipped with 2 inner ring of needle bearing is loaded in pump case 1 afterwards, then circlip for hole 4 is put into processing in pump case 1 In good annular groove, O-ring seals 5 are installed on the O-ring groove on 7 end face of housing, by hexagon-headed bolt 8 by housing 7 with The connection of pump case 1 is fixed.Screw rod 3 is as input shaft 6 rotates clockwise together (in Fig. 1 from right to the left) under working status, in spiral shell Under the impetus for revolving pump, final lubricating oil flow to the shell of power takeoff, gearbox or Retarder through oil outlet 9 (see Fig. 1) Inside body 7, forced feed lubrication is carried out.

Claims (6)

1. a kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder, including input shaft (6) and housing (7), the housing (7) is power takeoff housing, gear box casing or Retarder housing, the input shaft (6) is power takeoff, One shaft of gearbox or Retarder, the housing (7) is interior to form the first cavity, it is characterised in that:
Helicoidal pump is further included, the helicoidal pump includes screw rod (3) and pump case (1), the second cavity, spiral shell are formed in the pump case (1) Bar (3), which is located in pump case (1), to be formed in the second cavity, and pump case (1) is fixedly connected with housing (7);
The input shaft (6), which rotates, drives screw rod (3) to rotate, and the pump case (1) is equipped with fuel feed hole (10), the first cavity and the Oil outlet (9) is equipped between two cavitys.
2. a kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder according to claim 1, its It is characterized in that:The pump case (1) is equipped with annular groove, and circlip for hole (4), circlip for hole (4) are equipped with annular groove For limiting the axial movement of screw rod (3).
3. a kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder according to claim 2, its It is characterized in that:The screw rod (3) matches connection with input shaft (6) by internal spline.
4. a kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder according to claim 3, its It is characterized in that:The housing (7) and pump case (1) faying face are equipped with O-ring seals (5), and O-ring seals (5) are used to prevent from moistening Lubricating oil leaks outside.
5. according to claim 1-4 any one of them a kind of power takeoff being lubricated using helicoidal pump, gearbox or fluid power Retarder, it is characterised in that:The screw rod (3) is installed on pump case (1) by needle bearing (2).
6. a kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder according to claim 5, its It is characterized in that:The pump case (1) is fixed on housing (7) by hexagon-headed bolt.
CN201721299863.9U 2017-10-10 2017-10-10 A kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder Active CN207364244U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721299863.9U CN207364244U (en) 2017-10-10 2017-10-10 A kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721299863.9U CN207364244U (en) 2017-10-10 2017-10-10 A kind of power takeoff being lubricated using helicoidal pump, gearbox or Retarder

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CN207364244U true CN207364244U (en) 2018-05-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111043294A (en) * 2019-12-30 2020-04-21 綦江齿轮传动有限公司 Cycloid inner rotor oil pump device for front power takeoff

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111043294A (en) * 2019-12-30 2020-04-21 綦江齿轮传动有限公司 Cycloid inner rotor oil pump device for front power takeoff

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