CN206035839U - Electronic hydraulic steering pump of unipolar - Google Patents
Electronic hydraulic steering pump of unipolar Download PDFInfo
- Publication number
- CN206035839U CN206035839U CN201620687641.3U CN201620687641U CN206035839U CN 206035839 U CN206035839 U CN 206035839U CN 201620687641 U CN201620687641 U CN 201620687641U CN 206035839 U CN206035839 U CN 206035839U
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- China
- Prior art keywords
- oil
- motor
- ring
- bearing
- oil sealing
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- Expired - Fee Related
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Abstract
The utility model discloses an electronic hydraulic steering pump of unipolar, include: hydraulic pump and motor, the pump body fixed mounting of hydraulic pump are on the motor casing of motor, and the impeller of hydraulic pump is all installed on the transmission shaft with the rotor of motor, the pump body includes impeller cavity and end cover, and the end cover is located the terminal surface of the motor side of impeller cavity and is become a whole, and the center of end cover is equipped with the bearing bore, and the bottom of bearing bore is equipped with the bulge loop, the end cover is equipped with noise reduction layer towards the inner wall of motor side, noise reduction layer's material is compound noise -reducing composite, the bearing is installed in the middle part and the bearing bore cooperation on the pump body of transmission shaft, be equipped with wave spring between bulge loop and sealed bearing's the terminal surface. The utility model discloses a technique aim at provides that a volume is littleer, spare part quantity still less, the noise is littleer, weight is lighter electronic hydraulic steering pump of unipolar, this kind of electronic hydraulic steering pump of unipolar's spare part quantity still less, the reliability is higher, avoids the trouble hidden danger that the transmission became invalid to can reduction in production cost.
Description
Technical field
This utility model is related to hydraulic steering pump field, particularly a kind of single shaft electrohydraulic steering pump.
Background technology
Now, in order that the sustainable development of China's economy, it is China's sustainable economic development to promote new-energy automobile
Very important Strategic Measure.
The motor transmission shaft of existing traditional electrohydraulic steering pump passes through flat recess/flower with fluid-link steering pump drive shaft
Key/pin/shaft coupling connection so that the fluid-link steering pump drive shaft of electrohydraulic steering pump assembly, motor transmission shaft are two zero
Part, when fluid-link steering pump drive shaft is broken down with the connection member of motor transmission shaft, just occurs transmission failure, and connects
Relay part can consume the power of motor of a part, and transmission efficiency is reduced, and increase the volume of electrohydraulic steering pump assembly with
Weight, has gap between fluid-link steering pump drive shaft and motor transmission shaft, the noise of drive disk assembly can be caused to increase, reduced and taken advantage of
The comfortableness of seat.And new forms of energy vehicle is harsher to noise requirements, especially pure electric vehicle type is very strict to noise requirements.
Utility model content
For the deficiency that above-mentioned electrohydraulic steering pump is present, technical purpose of the present utility model is to provide a kind of volume
Less, amount of parts is less, the single shaft electrohydraulic steering pump that noise is less, weight is lighter, and this single shaft electric hydaulic turns
Amount of parts to pump is less, and reliability is higher, it is to avoid the potential faults of transmission failure, and can reduce production cost.
This utility model is achieved through the following technical solutions：
A kind of single shaft electrohydraulic steering pump, including：Hydraulic pump and motor, the pump housing of hydraulic pump are fixedly mounted on motor
On motor casing, the impeller of hydraulic pump is installed on power transmission shaft with the rotor of motor.
In above-mentioned technical proposal, motor casing refers to the cylinder blanket of motor, rather than electric motor end cap, the electricity of this structure
Hydrodynamic pressure steering pump does not have the drive end bearing bracket of motor, and the end face of the pump housing is directly coordinated with motor casing to be installed, so as to eliminate before motor
End cap, and motor shares same power transmission shaft with hydraulic pump, reduces amount of parts, significantly reduces single shaft electric hydaulic
The overall weight of steering pump so that transmission efficiency is higher, reduces production cost, reduces noise, more compact structure；Motor and hydraulic pressure
Pump shares same power transmission shaft and can avoid the alignment error problem between power transmission shaft, it is to avoid two axle axialities are inconsistent to ask
Topic.
Further, the pump housing includes wheel cavity and end cap, and end cap is located at the end face of the motor side of wheel cavity simultaneously
Become an entirety, the center of end cap is provided with bearing bore, and the bottom of bearing bore is provided with bulge loop；End cap is provided with towards the inwall of motor side
Noise reduction layer, the material of the noise reduction layer is compound noise-reducing material.
In above-mentioned technical proposal, the end face of the motor side by end cap to be located at wheel cavity, and be integral type structure,
So that the parts of the pump housing are less, the bulge loop that bearing bore bottom is provided with can carry out axial equipotential to the bearing of bearing intracavity；If
Some noise reduction layers can substantially reduce motor and bearing rotates the noise for sending.
Further, the middle part of the power transmission shaft is provided with bearing with the bearing bore cooperation on the pump housing.
In above-mentioned technical proposal, bearing is installed by coordinating in bearing bore, bearing is supported to power transmission shaft, so that
Obtain power transmission shaft reliably to operate.
Further, the bearing is sealed bearings or rolling bearing or sliding bearing.
In above-mentioned technical proposal, sealed bearings are prevented from the entrance of introduced contaminants so that the service life of bearing is longer；
Rolling bearing structure is simple, and operation noise is low；Preferably, reliability is higher for the supportive of sliding bearing, in design, from wherein
A kind of bearing.
Further, wavy spring is provided between the bulge loop and the end face of sealed bearings.
In above-mentioned technical proposal, by being provided with wavy spring between bulge loop and the end face of bearing, wavy spring can be right
Bearing is provided and is axially supported, and so as to prevent bearing axial motion so that the installation to bearing is relatively reliable, improves bearing and pump is total
Into reliability.
Further, the center of the end cap is provided with groove, and groove is located between sealed bearings and the impeller of hydraulic pump, recessed
It is provided with groove and coordinates the oil sealing installed with power transmission shaft.
In above-mentioned technical proposal, coordinate the oil sealing installed by being provided with the groove of end cap with power transmission shaft, so as to avoid
The medium of hydraulic steering pump conveying is entered in end cap, so as to enter in motor through bearing so that hydraulic steering pump and electricity
Machine being capable of safe handling.
Further, the oil sealing includes body in oil sealing ectosome and oil sealing, and in oil sealing, body is internal outside oil sealing；
The rectangular cross-section of oil sealing ectosome, the bottom of oil sealing ectosome are provided with 2～6 layers of sealing lip, can be 3/4/5 layer, oil sealing
The air side of ectosome is provided with dust excluder lips, is provided with U-shaped skeleton on the outside of oil sealing ectosome, and U-shaped skeleton includes left side ring, right side ring and outer
Cylinder, oily side and the air side of outer tube are separately installed with left side ring and right side ring, in left side ring and the embedded oil sealing rubber of right side ring, oil
Envelope rubber is embedded in the part of left side ring and right side ring for crimp design, and the medium position of outer drum outer wall is provided with oil sealing rubber,
The inwall of oil sealing ectosome is provided with the A fuel feed holes and A oil outlets at 180 ° of interval, is carried out by becket in A fuel feed holes and A oil outlets
Support, it is to avoid cause oilhole closure under the oil sealing rubber effect of elastomer, A fuel feed holes and A oil outlets are located between sealing lip
Between gap, A fuel feed holes fewer than the number of plies of sealing lip with the quantity of A oil outlets one.
In above-mentioned technical proposal, the sealing lip of the multilamellar of the oil sealing ectosome of oil sealing can carry out multi-level close to power transmission shaft
Envelope, and this multi-level sealing structure is compact, so as to ensure the reliability of oil sealing；Due to after oil seal failure, pump end
Medium can be quickly entered in motor in the case where making any reaction, it is therefore necessary to be using a kind of ratio
The relatively reliable seal form of common oil sealing；U-shaped skeleton on oil sealing ectosome can play a part of to support whole oil sealing part,
Coordinate with the pump housing and install and fix；The crimp design part of the oil sealing rubber of oil sealing ectosome both sides can carry out a certain degree of stretching
Contracting；By enabling annular chamber flowing of the medium between sealing lip in A fuel feed holes and A oil outlets, so as to take away sealing lip
The heat produced with transmission shaft friction, increases the reliability of oil sealing, substantially reduces the aging speed of sealing lip, extends sealing lip
Use time；It should be noted that the velocity of rotation of power transmission shaft is faster, the heat of generation is more, and heat excessively can not be arranged in time
Go out the use time of sealing lip will be substantially reduced so that the temperature of sealing lip is improved rapidly；And the pump in this utility model
It is sealed in the cavity between tight motor and hydraulic steering pump, atmosphere draught-free, is more difficult to discharge the heat that friction is produced
Amount.
Further, in the oil sealing, body includes annular air-pocket and metal oil ring, and metal oil ring coordinates installed in annular gas
Intracapsular, the internal ring wall of annular air-pocket is identical with the external annulus of metal oil ring, and the internal ring wall of metal oil ring is provided with and is connected with A fuel feed holes
B oil outlets and the B fuel feed holes connected with A oil outlets；
Side wall at the B oil outlets of metal oil ring is provided with the oil inlet pipe connected with hydraulic pump outlet, the B oil-feeds of metal oil ring
Side wall at hole is provided with the flowline with hydraulic pump inlet communication, is provided with dividing plate, flowline between the oil inlet pipe and B fuel feed holes
Dividing plate is provided between B oil outlets.
In above-mentioned technical proposal, sealing lip is provided by annular air-pocket and supports pressure so that sealing lip and power transmission shaft it
Between contraction outside after good contact, and the operation of compensation sealing lip permanent time so that sealing continues reliability, and air bag is compared to biography
The contraction spring of system is relatively reliable, and avoids being corroded, and elastically keeps more persistently, is that a kind of new reliable elasticity is provided
Device；It is cavity structure in metal oil ring, in metal oil ring, is connected with flow media, internal ring wall and the metal oil ring of annular air-pocket
External annulus are identical, so that air is compressed the flow media in metal oil ring the heat for producing take away, and flow media
The annular chamber entered between sealing lip, so that take away the heat that sealing lip is produced with transmission shaft friction；With hydraulic pressure pump inlet, go out
The oil pipe of mouth connection carries out fuel feeding, it is not necessary to extra equipment, reduces the demand of equipment, and can greatly improve sealing
Sustainability.
The beneficial effects of the utility model are:
1st, the end face that the electrohydraulic steering pump of this structure does not have the drive end bearing bracket of motor, the pump housing is directly coordinated with motor casing
Install, so as to eliminate motor front end cover, and motor shares same power transmission shaft with hydraulic pump, reduces amount of parts,
Significantly reduce the overall weight of single shaft electrohydraulic steering pump so that transmission efficiency is higher, reduce production cost, reduction is made an uproar
Sound, more compact structure；Motor and hydraulic pump share the alignment error problem that same power transmission shaft can avoid between power transmission shaft, keep away
Exempt from two inconsistent problems of axle axiality；The volume of electrohydraulic steering pump assembly reduces by more than 20%, and weight can mitigate
More than 30%.
2nd, by by end cap located at wheel cavity motor side end face, and be integral type structure so that the zero of the pump housing
Part is less, and the bulge loop that bearing bore bottom is provided with can carry out axial equipotential to the bearing of bearing intracavity；The noise reduction layer energy being provided with
Enough substantially reduce motor and bearing rotates the noise for sending.
Description of the drawings
Fig. 1 is the general structure schematic diagram of single shaft electrohydraulic steering pump of the present utility model；
Fig. 2 is the structural representation of oil sealing of the present utility model；
Fig. 3 is oil sealing cooling structure schematic diagram of the present utility model.
Labelling in figure：1 is hydraulic pump, 2 is motor, 3 is power transmission shaft, 4 is the pump housing, 4.1 is wheel cavity, 4.2 is end cap,
5 be motor casing, 6 be bearing bore, 7 be bulge loop, 8 be bearing, 9 be spring, 10 be oil sealing, 11 be oil sealing ectosome, 12 be oil sealing in
Body, 13 be sealing lip, 14 be dust excluder lips, 15 for it is U-shaped it is additional, 16 be left side ring, 17 be right side ring, 18 be outer tube, 19 be noise reduction
Layer, 20 be air bag, 21 be metal oil ring, 22 be A fuel feed holes, 23 be A oil outlets, 24 be B fuel feed holes, 25 be B oil outlets, 26 be
Dividing plate, 27 be oil inlet pipe, 28 be flowline.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in detail.
Single shaft electrohydraulic steering pump as shown in Figure 1, Figure 2 and Figure 3, including hydraulic pump 1, motor 2, the power transmission shaft 3, pump housing
4th, wheel cavity 4.1, end cap 4.2, motor casing 5, bearing bore 6, bulge loop 7, bearing 8, spring 9, oil sealing 10, oil sealing ectosome 11, oil
Body 12 in envelope, sealing lip 13, dust excluder lips 14, U-shaped additional 15, left side ring 16, right side ring 17, outer tube 18, noise reduction layer 19, air bag
20th, metal oil ring 21, A fuel feed holes 22, A oil outlets 23, B fuel feed holes 24, B oil outlets 25, dividing plate 26, oil inlet pipe 27 and flowline
28, the pump housing 4 of hydraulic pump 1 is fixedly mounted on the motor casing 5 of motor 2, and impeller and the rotor of motor 2 of hydraulic pump 1 are respectively mounted
On power transmission shaft 3.
The pump housing 4 includes wheel cavity 4.1 and end cap 4.2, end of the end cap 4.2 located at 2 side of motor of wheel cavity 4.1
Face simultaneously becomes an entirety, and the center of end cap 4.2 is provided with bearing bore 6, and the bottom of bearing bore 6 is provided with bulge loop 7, and end cap is towards motor 2
The inwall of side is provided with noise reduction layer 19, and the material of the noise reduction layer 19 is compound noise-reducing material；On the middle part of power transmission shaft 3 and the pump housing 4
Bearing bore 6 coordinate bearing 8 is installed；Bearing 8 is sealed bearings or rolling bearing or sliding bearing, preferentially from seal shaft
Hold, sealed bearings can also play the sealing function to pump side medium；Wavy spring is provided between the end face of bulge loop 7 and bearing 8
9；The center of the end cap 4.2 is provided with groove, and groove is located between sealed bearings 8 and the impeller of hydraulic pump 1, be provided with groove with
Power transmission shaft 3 coordinates the oil sealing 10 installed, the outer face of oil sealing 10 to be provided with elastic spacing back-up ring, plays axial limiting work to oil sealing
With preventing vibration.
The oil sealing 10 includes body 12 in oil sealing ectosome 11 and oil sealing, and in oil sealing, body 12 is in oil sealing ectosome 11；
The rectangular cross-section of oil sealing ectosome 11, the bottom of oil sealing ectosome 11 are provided with 4 layers of sealing lip 13, the sky of oil sealing ectosome 11
Gas side is provided with dust excluder lips 14, and the outside of oil sealing ectosome 11 is provided with U-shaped skeleton 15, and U-shaped skeleton 15 includes left side ring 16, right side ring 17
And outer tube 18, oily side and the air side of outer tube 18 are separately installed with left side ring 16 and right side ring 17, left side ring 16 and right side ring 17
In embedded oil sealing rubber, U-shaped skeleton 15 is stainless steel, and left side ring 16, right side ring 17 can be fixedly mounted on by Screw
On outer tube 18, demountable structure, the medium position of 18 outer wall of outer tube are provided with oil sealing rubber, and the inwall of oil sealing ectosome 11 is provided with interval
180 ° of A fuel feed holes 22 and A oil outlets 23, A fuel feed holes 22 and A oil outlets 23 are located between the gap of sealing lip 13, A fuel feed holes
22 one, A fuel feed holes fewer than the number of plies of sealing lip 13 with the quantity of A oil outlets 23 22 are respectively 3 with the quantity of A oil outlets 23.
In the oil sealing, body 12 includes annular air-pocket 20 and metal oil ring 21, and metal oil ring 21 coordinates installed in annular air-pocket
In 20, the internal ring wall of annular air-pocket 20 is identical with the external annulus of metal oil ring 21, and the internal ring wall of metal oil ring 21 is provided with and A oil-feeds
The B oil outlets 25 and the B fuel feed holes 24 connected with A oil outlets 23 of the connection of hole 22；
Side wall at the B oil outlets 25 of metal oil ring 21 is provided with the oil inlet pipe 27 connected with hydraulic pump outlet, metal oil ring
Side wall at 21 B fuel feed holes 24 is provided with the flowline 28 with hydraulic pump inlet communication, the oil inlet pipe 27 and B fuel feed holes 24 it
Between be provided with dividing plate 26, be provided with dividing plate 26 between flowline 28 and B oil outlets 25.Oil inlet pipe 27 and flowline 28 are all tiny oil
Control valve and flow-monitoring device, convenient monitoring ruuning situation is further respectively had on pipe, and oil inlet pipe 27 and flowline 28.
Motor casing 5 refers to the cylinder blanket of motor, rather than electric motor end cap, and the electrohydraulic steering pump of this structure does not have
There is the drive end bearing bracket of motor, the end face of the pump housing 4 is directly coordinated with motor casing 5 to be installed, so as to eliminate motor front end cover, and motor
2 share same power transmission shaft 3 with hydraulic pump, reduce amount of parts, significantly reduce the total of single shaft electrohydraulic steering pump
Body weight so that transmission efficiency is higher, reduces production cost, reduces noise, more compact structure；Motor 2 shares same with hydraulic pump 1
A piece power transmission shaft 3 can avoid the alignment error problem between power transmission shaft, it is to avoid the inconsistent problem of two axle axialities；It is electronic
The volume of fluid-link steering pump assembly reduces by more than 20%, and weight can mitigate more than 30%.Inwall of the end cap 4.25 towards motor side
It is provided with noise reduction layer, the material of the noise reduction layer is compound noise-reducing material, the noise reduction layer being provided with can substantially reduce motor and bearing
The noise that rotation sends, by being provided with wavy spring between bulge loop 7 and the end face of bearing, wavy spring can be provided to bearing
Axially support, so as to prevent bearing axial motion so that the installation to bearing is relatively reliable, improve the reliability of bearing and pump assembly
Property.The flow orifice being provided with by the metal oil ring 21 that is provided with and cooperation, can solve the problem that the lubrication and cooling problem of sealing lip 13, carries
For a kind of cooling system, and the seal pressure that the oil sealing of this structure bears is bigger, greatly improves sealing effectiveness and reliability.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure made using this utility model description and accompanying drawing content or equivalent flow conversion, or be directly or indirectly used in
Other related technical fields, are included in scope of patent protection of the present utility model in the same manner.
Claims (8)
1. a kind of single shaft electrohydraulic steering pump, it is characterised in that include：Hydraulic pump（1）And motor（2）, hydraulic pump（1）Pump
Body（4）It is fixedly mounted on motor（2）Motor casing（5）On, hydraulic pump（1）Impeller and motor（2）Rotor be installed in biography
Moving axis（3）On.
2. single shaft electrohydraulic steering pump according to claim 1, it is characterised in that the pump housing（4）Including impeller cavity
Body（4.1）And end cap（4.2）, end cap（4.2）Located at wheel cavity（4.1）Motor（2）The end face of side, end cap（4.2）In
The heart is provided with bearing bore（6）, bearing bore（6）Bottom be provided with bulge loop（7）；End cap（4.2）Noise reduction is provided with towards the inwall of motor side
Layer（19）, the noise reduction layer（19）Material be compound noise-reducing material.
3. single shaft electrohydraulic steering pump according to claim 1, it is characterised in that the power transmission shaft（3）Middle part with
The pump housing（4）On bearing bore（6）Cooperation is provided with bearing（8）.
4. single shaft electrohydraulic steering pump according to claim 3, it is characterised in that the bearing（8）For sealed bearings
Or rolling bearing or sliding bearing.
5. single shaft electrohydraulic steering pump according to claim 2, it is characterised in that the bulge loop（7）With bearing（8）'s
Wavy spring is provided between end face（9）.
6. single shaft electrohydraulic steering pump according to claim 2, it is characterised in that the end cap（4.2）Center set
Fluted, groove is located at sealed bearings（8）With hydraulic pump（1）Impeller between, be provided with groove and power transmission shaft（3）Coordinate and install
Oil sealing（10）.
7. single shaft electrohydraulic steering pump according to claim 6, it is characterised in that the oil sealing（10）Outside including oil sealing
Body（11）And body in oil sealing（12）, body in oil sealing（12）Located at oil sealing ectosome（11）It is interior；
Oil sealing ectosome（11）Rectangular cross-section, oil sealing ectosome（11）Bottom be provided with 2～6 layers of sealing lip（13）, oil sealing ectosome
（11）Air side be provided with dust excluder lips（14）, oil sealing ectosome（11）Outside be provided with U-shaped skeleton（15）, U-shaped skeleton（15）Including
Left side ring（16）, right side ring（17）And outer tube（18）, outer tube（18）Oily side and air side be separately installed with left side ring（16）And
Right side ring（17）, left side ring（16）And right side ring（17）In embedded oil sealing rubber, outer tube（18）The medium position of outer wall is provided with oil
Envelope rubber, oil sealing ectosome（11）Inwall be provided with 180 ° of the A fuel feed holes in interval（22）With A oil outlets（23）, A fuel feed holes（22）With
A oil outlets（23）Located at sealing lip（13）Gap between.
8. single shaft electrohydraulic steering pump according to claim 7, it is characterised in that body in the oil sealing（12）Including ring
Shape air bag（20）And metal oil ring（21）, metal oil ring（21）Coordinate installed in annular air-pocket（20）It is interior, annular air-pocket（20）'s
Internal ring wall and metal oil ring（21）External annulus it is identical, metal oil ring（21）Internal ring wall be provided with and A fuel feed holes（22）The B of connection
Oil outlet（25）And with A oil outlets（23）The B fuel feed holes of connection（24）；
Metal oil ring（21）B oil outlets（25）The side wall at place is provided with the oil inlet pipe connected with hydraulic pump outlet（27）, metal oil
Ring（21）B fuel feed holes（24）The side wall at place is provided with the flowline with hydraulic pump inlet communication（28）, the oil inlet pipe（27）With B
Fuel feed hole（24）Between be provided with dividing plate（26）, flowline（28）With B oil outlets（25）Between be provided with dividing plate（26）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620687641.3U CN206035839U (en) | 2016-07-04 | 2016-07-04 | Electronic hydraulic steering pump of unipolar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620687641.3U CN206035839U (en) | 2016-07-04 | 2016-07-04 | Electronic hydraulic steering pump of unipolar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206035839U true CN206035839U (en) | 2017-03-22 |
Family
ID=58311434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620687641.3U Expired - Fee Related CN206035839U (en) | 2016-07-04 | 2016-07-04 | Electronic hydraulic steering pump of unipolar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206035839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015023A (en) * | 2016-07-04 | 2016-10-12 | 玉林市璟晗新能源汽车有限责任公司 | Single-shaft electro-hydraulic steering pump |
-
2016
- 2016-07-04 CN CN201620687641.3U patent/CN206035839U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015023A (en) * | 2016-07-04 | 2016-10-12 | 玉林市璟晗新能源汽车有限责任公司 | Single-shaft electro-hydraulic steering 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: 20170322 Termination date: 20180704 |