CN205841698U - A kind of engine hydraulic pump power output structure - Google Patents
A kind of engine hydraulic pump power output structure Download PDFInfo
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- CN205841698U CN205841698U CN201620833229.8U CN201620833229U CN205841698U CN 205841698 U CN205841698 U CN 205841698U CN 201620833229 U CN201620833229 U CN 201620833229U CN 205841698 U CN205841698 U CN 205841698U
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- hydraulic pump
- bearing
- gear
- gear chamber
- power output
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Abstract
The utility model discloses a kind of engine hydraulic pump power output structure, including the gear chamber being installed on electromotor, it is provided with in described gear chamber and the hydraulic pump gear of the gear-linked in described gear chamber, a side end face of described hydraulic pump gear protrude above be provided with stretch into gear chamber in and the drive sleeve that is connected with the power shaft of hydraulic pump, being provided with a bearing suitable with described drive sleeve in described gear chamber, the opposite side end face of described gear chamber is provided with the connecting portion that the shell with described hydraulic pump is connected.Of the present utility model rational in infrastructure, simple in construction, easy for installation, reduce processing installation accuracy and require low, part is few, easy to maintenance, and power transmission is stable.
Description
Technical field
This utility model relates to electromotor and manufactures field, more specifically, it relates to a kind of engine hydraulic pump power is defeated
Go out structure.
Background technology
At Engine Industry, particularly at non-road electromotor, such as harvester, tractor, engineering machine, be satisfied
Hydraulic lifting, the function such as turn to, need driven by engine hydraulic pump to export power, hydraulic pump power output structure the most such
Planting device, it is installed on the engine, is used for installing hydraulic pump and providing power to hydraulic pump.
Existing hydraulic pump power output structure mainly wants two kinds, and one is that the mode using sliding bearing (i.e. lining) passes
Pass, need to increase external oil pipe or built-in oil duct carries out forced feed lubrication to gear lining；Another kind is to use two rolling bearings,
Lay respectively at gear shaft two ends, need also exist for bearing is carried out forced feed lubrication, and bearing needs to adjust end-play.Existing side
Case part is many, and structure is complicated, and processing installation accuracy is required height, and gear centre is away from difficult control, and bearing needs to adjust end-play,
Out-of-alignment situation easily occurs, makes hydraulic pump operation portion stable, reduce the service life of pump.
Utility model content
The purpose of this utility model is to there are the problems referred to above for existing technology, it is provided that a kind of installation is simple, maintenance
Convenient, the engine hydraulic pump power output structure of stable transmission.
For achieving the above object, a kind of engine hydraulic pump power output structure of the present utility model, send out including being installed on
Gear chamber in motivation, described gear chamber is provided with and the hydraulic pump gear of the gear-linked in described gear chamber, in institute
State a side end face of hydraulic pump gear protrude above be provided with stretch into gear chamber in and the drive sleeve that is connected with the power shaft of hydraulic pump,
Being provided with a bearing suitable with described drive sleeve in described gear chamber, the opposite side end face of described gear chamber is provided with and institute
State the connecting portion that the shell of hydraulic pump is connected.
Further, described drive sleeve inwall is provided with the internal spline suitable with the power shaft of hydraulic pump, described transmission
The outer wall of set is the step structure that the radial dimension by power intake to outfan is the least.
Further, the inside of described drive sleeve is provided with the positioning step that the inner ring end face with described bearing adapts
Face, described drive sleeve is provided with the retaining mechanism of the axial upper limit of inner ring of described bearing away from one end of hydraulic pump gear.
Further, described retaining mechanism is the locking nut of the one end being arranged on described drive sleeve, described lock
Jack panel adapts with the inner ring position of described bearing, the locking direction of described locking nut and the rotation of described hydraulic pump gear
In opposite direction.
As further improving, it is provided with a hydraulic pump between described connecting portion and the shell of hydraulic pump and fishplate bar is installed,
Fishplate bar installed by described hydraulic pump is hollow form, is provided with gasket seal, the other end between the shell of its one end and described hydraulic pump
And it is provided with O between the rear end face of described gear chamber.
As further improving, described bearing is double-row angular contact bal bearing, and it is right that described bearing both sides are provided with
The outer ring of described bearing carries out the position-limit mechanism of axial limiting.
Further, described position-limit mechanism is included in the front end face of described gear chamber and is provided with and the front end of described bearing
Thrust plate and the outer ring, rear end being provided with described bearing in the inner edge of described hydraulic pump installation fishplate bar that outer ring adapts adapt
Seam face.
Beneficial effect
Of the present utility model rational in infrastructure, hydraulic pump power output structure uses single double-row angular contact bal bearing, hydraulic pressure
Pump gear single-cantilever supports, and simple in construction is easy for installation, it is not necessary to adjusting bearing axial play, power transmission is stable；Bearing is direct
It is arranged in gear chamber, can guarantee that gear meshed center distance, processing or installation accuracy require low；Part is few, installs simple, safeguards
Convenient；Bearing built-in oil grease lubrication, is provided with sealing structure, prevents lubricant grease Loss by leaching, effectively prevents from polluting.
Accompanying drawing explanation
Fig. 1 is the Standard figure of engine hydraulic pump power output structure of the present utility model；
Fig. 2 is the partial sectional view of Standard figure in Fig. 1；
Fig. 3 is the structural representation of the present embodiment middle gear；
Fig. 4 is the sectional view in A-A direction in Fig. 3.
In figure: 1, gear chamber；2, hydraulic pump gear；3, hydraulic pump；31, power shaft；32, shell；4, drive sleeve；41, interior
Spline；42, locking nut；5, bearing；6, connecting portion；7, fishplate bar installed by hydraulic pump；8, gasket seal；9, O；10, thrust
Plate；11, seam face.
Detailed description of the invention
Below in conjunction with embodiment, the utility model will be further described, but does not constitute of the present utility model any
Limit, the amendment of anyone limited number of time made at this utility model right, still want in right of the present utility model
In the range of asking.
Specific embodiment of the utility model is such that with reference to shown in Fig. 1-4, and a kind of engine hydraulic pump power exports
Structure, including the gear chamber 1 being installed on electromotor, gear chamber 1 is provided with and the hydraulic pump of the gear-linked in gear chamber 1
Gear 2, a side end face of hydraulic pump gear 2 protrude above be provided with stretch into gear chamber 1 in and be connected with the power shaft 31 of hydraulic pump 3
The drive sleeve 4 connect, is provided with a bearing 5 suitable with drive sleeve 4 in gear chamber 1, the opposite side end face of gear chamber 1 is provided with and liquid
The connecting portion 6 that the shell 32 of press pump 3 is connected.Bearing 5 is directly installed in gear chamber 1, it is not necessary to arrange supporting construction, structure letter
Single, it is integrated in gear chamber 1, the structure making whole electromotor is compacter, and space availability ratio is high, and gear chamber 1 is formed in one
Manufacture, it is ensured that whole power drive system rigidity, make power transmission more stable；Hydraulic pump gear 2 uses single-cantilever to support, and
And can guarantee that hydraulic pump gear 2 meshed center distance, make power transmission stable, and without adjusting bearing 5 end-play, reduction adds
Work installation accuracy requirement, easy for installation, easy to maintenance.
In the present embodiment, drive sleeve 4 inwall is provided with the internal spline 41 suitable with the power shaft 31 of hydraulic pump 3, passes through
Spline connects, it is ensured that power shaft 31 and the axiality of drive sleeve 4, makes power transmission more stable；The outer wall of drive sleeve 4 is for by moving
Power input is to the least step structure of the radial dimension of outfan.Be provided with in the inside of drive sleeve 4 with in bearing 5
The positioning table terrace that circle end face adapts, bearing 5 and drive sleeve 4 are mutually located by positioning table terrace, it is ensured that this gear of hydraulic pressure 2
Assembly precision；Drive sleeve 4 is provided with the retaining mechanism of the axial upper limit of inner ring of bearing 5 away from one end of hydraulic pump gear 2,
Retaining mechanism is the locking nut 42 of the lateral ends being arranged on drive sleeve 4, and the inner ring position of locking nut 42 and bearing 5 is fitted mutually
Should, by locking nut 42, the inner ring of bearing 5 is extruded, make hydraulic pump gear 2 be fixed together with the inner ring of bearing 5；
And drive sleeve 4 and locking nut 42 screw-down torque add thread locking adhesive assembling, the locking direction of locking nut 42 and liquid simultaneously
The direction of rotation of press pump gear 2 is contrary, effectively prevents locking nut 42 from occurring loosening, is also prevented from hydraulic pump gear 2 in rotation
Owing to loosening, collision phenomenon occurs, it is ensured that hydraulic pump gear 2 safe operation.
In the present embodiment, it is provided with a hydraulic pump between the shell 32 of connecting portion 6 and hydraulic pump 3 and fishplate bar 7 is installed, pass through spiral shell
Shell 32 and the hydraulic pump of hydraulic pump 3 are installed fishplate bar 7 and are fixed on the connecting portion 6 of gear chamber 1 by bolt；And hydraulic pump is installed and is connect
Plate 7, in hollow form, is provided with the rear end face of gasket seal 8, the other end and gear chamber 1 between the shell 32 of its one end and hydraulic pump 3
Between be provided with O 9, O 9 is arranged in the groove that fishplate bar 7 end face installed by hydraulic pump, thus hydraulic pump 3, drive sleeve 4, axle
Hold 5 and constitute a sealing cavity with gear chamber 1, effectively prevent the lubricant grease seepage in bearing 5, it is ensured that the lubrication effect of bearing 5
Really, prevent from causing grease leakage to pollute.
In the present embodiment, bearing 5 is double-row angular contact bal bearing, is arranged on to bearing 5 interference fit the axle of gear chamber 1
In bearing bore, double-row angular contact bal bearing takies the least axial space, can bear radial load and act on both direction
Axial load, it can limit drive sleeve 4 bi-directional axial displacement, bearing 5 good rigidly, and can bear tilting moment, make making of bearing 5
Use the life-span long, extend the part exchanging cycle；Bearing 5 both sides are provided with the outer ring to bearing 5 and carry out the position-limit mechanism of axial limiting, limit
Position mechanism is included in the front end face of gear chamber 1 and is provided with thrust plate 10 that the outer ring, front end with bearing 5 adapts and at hydraulic pump
The inner edge installing fishplate bar 7 is provided with the seam face 11 that the outer ring, rear end with bearing 5 adapts, and seam face 11 is arranged on hydraulic pump and installs
On fishplate bar 7, simple in construction, practicality, it is simple to manufacture, easy for installation, thrust plate 10 is bolted on the front end face of gear chamber 1
On, by thrust plate 10 and seam face 11, the outer ring of bearing 5 is carried out axial upper limit, prevent bearing 5 from sending out under external force
Raw axial displacement, affects the installation accuracy of hydraulic pump gear 2, it is ensured that the stability of power transmission.
Below it is only preferred implementation of the present utility model, it should be pointed out that for a person skilled in the art,
On the premise of this utility model structure, it is also possible to make some deformation and improvement, these are new all without affecting this practicality
The effect of type enforcement and practical applicability.
Claims (8)
1. an engine hydraulic pump power output structure, including the gear chamber (1) being installed on electromotor, it is characterised in that
Hydraulic pump gear (2) with the gear-linked in described gear chamber (1) is installed, at described hydraulic pressure in described gear chamber (1)
One side end face of pump gear (2) protrudes above to be provided with and stretches in gear chamber (1) and be connected with the power shaft (31) of hydraulic pump (3)
Drive sleeve (4), is provided with a bearing (5) suitable with described drive sleeve (4), described gear chamber in described gear chamber (1)
(1) opposite side end face is provided with the connecting portion (6) that the shell (32) with described hydraulic pump (3) is connected.
A kind of engine hydraulic pump power output structure the most according to claim 1, it is characterised in that described drive sleeve
(4) inwall is provided with the internal spline (41) suitable with the power shaft (31) of hydraulic pump (3), and the outer wall of described drive sleeve (4) is served as reasons
Power intake is to the least step structure of the radial dimension of outfan.
A kind of engine hydraulic pump power output structure the most according to claim 1, it is characterised in that described drive sleeve
(4) inside is provided with the positioning table terrace that the inner ring end face with described bearing (5) adapts, and described drive sleeve (4) is away from hydraulic pressure
One end of pump gear (2) is provided with the retaining mechanism of the axial upper limit of inner ring of described bearing (5).
A kind of engine hydraulic pump power output structure the most according to claim 3, it is characterised in that described locking machine
Structure is the locking nut (42) of the one end being arranged on described drive sleeve (4), described locking nut (42) and described bearing (5)
Inner ring position adapts, and the locking direction of described locking nut (42) is contrary with the direction of rotation of described hydraulic pump gear (2).
A kind of engine hydraulic pump power output structure the most as claimed in any of claims 1 to 4, its feature exists
In, it is provided with a hydraulic pump between described connecting portion (6) and the shell (32) of hydraulic pump (3) and fishplate bar (7), described hydraulic pressure are installed
Pump installation fishplate bar (7), in hollow form, is provided with gasket seal (8) between the shell (32) of its one end and described hydraulic pump (3), another
It is provided with O (9) between end and the rear end face of described gear chamber (1).
A kind of engine hydraulic pump power output structure the most as claimed in any of claims 1 to 4, its feature exists
In, described bearing (5) is double-row angular contact bal bearing, and described bearing (5) both sides are provided with the outer ring to described bearing (5) and enter
The position-limit mechanism of row axial limiting.
A kind of engine hydraulic pump power output structure the most according to claim 5, it is characterised in that described bearing
(5) being double-row angular contact bal bearing, described bearing (5) both sides are provided with the outer ring to described bearing (5) and carry out axial limiting
Position-limit mechanism.
A kind of engine hydraulic pump power output structure the most according to claim 7, it is characterised in that described position restrainer
Structure is included in the front end face of described gear chamber (1) and is provided with the thrust plate (10) that the outer ring, front end with described bearing (5) adapts
It is provided with the seam face (11) that the outer ring, rear end with described bearing (5) adapts with the inner edge installing fishplate bar (7) at described hydraulic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620833229.8U CN205841698U (en) | 2016-08-03 | 2016-08-03 | A kind of engine hydraulic pump power output structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620833229.8U CN205841698U (en) | 2016-08-03 | 2016-08-03 | A kind of engine hydraulic pump power output structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841698U true CN205841698U (en) | 2016-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620833229.8U Active CN205841698U (en) | 2016-08-03 | 2016-08-03 | A kind of engine hydraulic pump power output structure |
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| CN (1) | CN205841698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015529A (en) * | 2016-08-03 | 2016-10-12 | 广西玉柴机器股份有限公司 | Power output structure of engine hydraulic pump |
-
2016
- 2016-08-03 CN CN201620833229.8U patent/CN205841698U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015529A (en) * | 2016-08-03 | 2016-10-12 | 广西玉柴机器股份有限公司 | Power output structure of engine hydraulic pump |
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