CN201703250U - Power takeoff combined pump - Google Patents
Power takeoff combined pump Download PDFInfo
- Publication number
- CN201703250U CN201703250U CN2010202038848U CN201020203884U CN201703250U CN 201703250 U CN201703250 U CN 201703250U CN 2010202038848 U CN2010202038848 U CN 2010202038848U CN 201020203884 U CN201020203884 U CN 201020203884U CN 201703250 U CN201703250 U CN 201703250U
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- CN
- China
- Prior art keywords
- power takeoff
- gear
- pump
- type pump
- gear type
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- General Details Of Gearings (AREA)
Abstract
The utility model relates to a power takeoff combined pump, which is used for transmitting power between a transmission and a hydraulic system of a special vehicle. The power takeoff combined pump comprises a power takeoff and a gear pump, the power takeoff comprises an input gear, an output gear, a meshing structure and a spline housing, the input gear is meshed with the output gear, the meshing structure is arranged at an output end of the output gear and controls connection and disconnection between the spline housing and the output gear, the gear pump comprises a spline shaft, the spline shaft matches with the spline housing directly, and the gear pump is in threaded connection with the power takeoff. The power takeoff and the gear pump are connected to each other directly and arranged coaxially, can not vibrate during torque transmission process and have stable performance. Therefore, the power takeoff connected pump is simple in structure, convenient in maintenance, small in volume, light in weight and reduced in cost.
Description
Technical field
The utility model relates to the hydraulic efficiency pressure system of special-use vehicle, specifically be a kind of at vehicle change speed gear box and hydraulic efficiency pressure system between the power takeoff attempted pump of transferring power.
Background technology
Along with expanding economy, the application and the demand of special-use vehicle constantly improve, and the kind of special-use vehicle is also brought in constant renewal in and regenerated, and this just proposes higher requirement to the transformation of special vehicle.Power takeoff is arranged on the device of the transferring power between change speed gear box and the gear pump of hydraulic system, comprise parts such as input gear, output gear, backup bearing, engaging structure and spline housing, input gear is connected with the castellated shaft of change speed gear box by spline, input gear and output gear are meshing with each other, the mouth of output gear is provided with engaging structure, and engaging structure control spline housing engages with output gear or disconnects.
Connection mode between power takeoff and the gear type pump, present most of special vehicle is to use form of flanges more, the outer end of power takeoff spline housing is provided with flange, be connected to universal joint shaft by this flange, and on vehicle suspension mounting bracket, the mounting teeth wheel pump is connected to gear type pump with transmission shaft again on support.There is following problem in this connection mode: 1, owing to adopt universal joint shaft and the collocation of pump support, increased weight, increased cost; 2, complex structure, the installation and maintenance difficulty, universal joint shaft in-to-in bearing needs time-based maintenance; 3, there is potential safety hazard, if the universal-shaft drive axle fracture can produce safety misadventure; 4, the life-span low because universal joint shaft can produce vibrations, can cause the bearing of the support axle head of gear type pump to cause damage because of too much vibrations.
Summary of the invention
The utility model is at the problems referred to above, provides that a kind of stable performance, cost are low, the power takeoff attempted pump of easy maintenance.
According to the technical solution of the utility model: a kind of power takeoff attempted pump, comprise power takeoff and gear type pump, power takeoff comprises input gear, output gear, engaging structure and spline housing, input gear and output gear are meshing with each other, the mouth of output gear is provided with engaging structure, and engaging structure control spline housing engages with output gear or disconnects, and gear type pump comprises castellated shaft, described castellated shaft directly matches with described spline housing, and described gear type pump is threaded with described power takeoff.
Described power takeoff is provided with thru-bolt, and described gear type pump is through on the described thru-bolt and by clamp nut and fixes.Be provided with gasket seal between described gear type pump and the described power takeoff.The castellated shaft of described gear type pump is provided with double-row bearing.The castellated shaft of described gear type pump is provided with High-pressure oil sealing.
Technique effect of the present utility model is: stable performance vibrations can not appear, in 1, gear type pump and the direct disjunctor of power takeoff, coaxial setting in the process of transfer torque; 2, cancelled universal joint shaft of the prior art and pump support, volume is little, has reduced weight, has reduced the arrangement space on the chassis, has reduced installation steps, effectively cost-cutting; 3, simple in structure, easy to maintenance.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a structure cutaway view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described.
As shown in Figure 1 and Figure 2, the utility model be a kind of at vehicle change speed gear box and hydraulic efficiency pressure system between the power takeoff attempted pump of transferring power, comprise power takeoff 1 and gear type pump 7.The housing of power takeoff 1 adopts high strength material, comprises input gear 8, output gear 10, engaging structure and spline housing 2 in the housing, and the two ends of output gear 10 are provided with backup bearing 9 and 11.Input gear 8 is connected with the castellated shaft of change speed gear box by spline, and input gear 8 is meshing with each other with output gear 10, and the mouth of output gear 10 is provided with engaging structure, and engaging structure generally adopts pneumatic form with of the prior art the same.Engaging structure control spline housing 2 engages with output gear 10 or disconnects.Gear type pump 7 comprises castellated shaft 3 and driven gear 14.Driven gear 14 makes the hydraulic oil that enters in the gear type pump 7 produce high pressure, by the high-pressure side output oil port of gear type pump 7, thereby hydraulic oil is provided for continuously the hydraulic efficiency pressure system of special-use vehicle.
The utility model has been cancelled universal joint shaft of the prior art and pump support, adopted the connection mode of a kind of later-model power takeoff 1 and gear type pump 7, concrete structure is: the way of output of power takeoff 1 adopts spline housing 2, the castellated shaft 3 of gear type pump 7 directly matches with spline housing 2, realize moment of torsion transmission between the two, gear type pump 7 is threaded with power takeoff 1.
Be provided with gasket seal 4 between gear type pump 7 and the power takeoff 1, guaranteed the sealing of power takeoff 1.
For service life and the performance that improves gear type pump 7, the castellated shaft 3 of gear type pump 7 is provided with double-row bearing 12 and High-pressure oil sealing 13.
Principle of work of the present utility model is: during power takeoff work, engaging structure control spline housing 2 engages with output gear 10, give the castellated shaft 3 of gear type pump 7 with the transmission of power of output gear 10, driven gear pump 7 in-to-in driven gears 14, thus realize the transmission of power.When not needing power takeoff work, throw off the engagement of spline housing 2 and output gear 10, thereby realize the interruption of power.
The utlity model has following advantage:
1, with gear pump 7 and power takeoff 1 direct disjunctor, because the spline housing 2 of power takeoff 1 is coaxial with the splined shaft 3 of gear pump 7, so can not occur vibrations in the process of transmitting torque, stable performance, the life-span of the spring bearing of gear pump 7 can access effective raising, has guaranteed that special-purpose vehicle moves safely and smoothly;
2, the utility model has been cancelled Cardan shaft of the prior art and pump support, adopts the disjunctor structure, and volume is little, has reduced weight, has reduced the arrangement space on the chassis, has reduced installation steps, can effectively reduce cost;
3, the utility model is simple in structure, and is easy to maintenance, excellent solution is provided especially for the multifarious selection of special-purpose vehicle gear pump, needn't be because of the replacing of gear pump, and change terminal pad, power transmission shaft, mounting bracket etc.
Claims (5)
1. power takeoff attempted pump, comprise power takeoff (1) and gear type pump (7), described power takeoff (1) comprises input gear (8), output gear (10), engaging structure and spline housing (2), input gear (8) is meshing with each other with output gear (10), the mouth of output gear (10) is provided with engaging structure, engaging structure control spline housing (2) engages with output gear (10) or disconnects, gear type pump (7) comprises castellated shaft (3), it is characterized in that: described castellated shaft (3) directly matches with described spline housing (2), and described gear type pump (7) is threaded with described power takeoff (1).
2. according to the described power takeoff attempted pump of claim 1, it is characterized in that described power takeoff (1) is provided with thru-bolt (6), described gear type pump (7) is through described thru-bolt (6) and goes up and fixed by clamp nut (5).
3. according to the described power takeoff attempted pump of claim 2, it is characterized in that being provided with gasket seal (4) between described gear type pump (7) and the described power takeoff (1).
4. according to the described power takeoff attempted pump of claim 3, it is characterized in that the castellated shaft (3) of described gear type pump (7) is provided with double-row bearing (12).
5. according to the described power takeoff attempted pump of claim 4, it is characterized in that the castellated shaft (3) of described gear type pump (7) is provided with High-pressure oil sealing (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202038848U CN201703250U (en) | 2010-05-25 | 2010-05-25 | Power takeoff combined pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202038848U CN201703250U (en) | 2010-05-25 | 2010-05-25 | Power takeoff combined pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201703250U true CN201703250U (en) | 2011-01-12 |
Family
ID=43440402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202038848U Expired - Lifetime CN201703250U (en) | 2010-05-25 | 2010-05-25 | Power takeoff combined pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201703250U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102667A (en) * | 2011-03-30 | 2011-06-22 | 浙江奥力电机股份有限公司 | Direct-connected integrated gear pump |
| CN102410217A (en) * | 2011-11-10 | 2012-04-11 | 青州市天润液压科技有限公司 | Directly-connected oil pump for dump truck |
| CN107804166A (en) * | 2017-10-20 | 2018-03-16 | 北京航天发射技术研究所 | A kind of special vehicle hangs and takes the successful automatic judging method of power |
-
2010
- 2010-05-25 CN CN2010202038848U patent/CN201703250U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102667A (en) * | 2011-03-30 | 2011-06-22 | 浙江奥力电机股份有限公司 | Direct-connected integrated gear pump |
| CN102410217A (en) * | 2011-11-10 | 2012-04-11 | 青州市天润液压科技有限公司 | Directly-connected oil pump for dump truck |
| CN107804166A (en) * | 2017-10-20 | 2018-03-16 | 北京航天发射技术研究所 | A kind of special vehicle hangs and takes the successful automatic judging method of power |
| CN107804166B (en) * | 2017-10-20 | 2020-08-07 | 北京航天发射技术研究所 | Automatic determination method for success of power on-off of special vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |