CN208593431U - A kind of electric hydraulic power-assisted steering pump assembly - Google Patents
A kind of electric hydraulic power-assisted steering pump assembly Download PDFInfo
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- CN208593431U CN208593431U CN201821146533.0U CN201821146533U CN208593431U CN 208593431 U CN208593431 U CN 208593431U CN 201821146533 U CN201821146533 U CN 201821146533U CN 208593431 U CN208593431 U CN 208593431U
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- oil
- end cap
- valve block
- cap valve
- gear pump
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Abstract
The utility model relates to a kind of electric hydraulic power-assisted steering pump assemblies, including motor, hydraulic gear pump, oil can and end cap valve block, end cap valve block is equipped with sealed groove, sealed groove includes circumferential external groove and interior separation trench, the both ends of interior separation trench are connect with outer annular groove respectively, and the region for surrounding outer annular groove is separated into gear pump oil suction chamber and pressure oil cavity, fuel feed hole is equipped in gear pump oil suction chamber, fuel feed hole is connected to by oil inlet passage with the oil inlet interface in end cap valve block, oil outlet is equipped in pressure oil cavity, oil outlet is connected to by oil discharge passage with the oil out port in end cap valve block.The utility model structure is simple, saves installation space, and due to saving intermediate connecting ring section, the concentricity of electronic axle and gear pump shaft is also ensured, can extend the service life of electric hydraulic power-assisted steering pump assembly, saves and uses and maintenance cost.
Description
Technical field
The utility model relates to a kind of electric hydraulic power-assisted steering pump assemblies, belong to Vehicular turn technical field.
Background technique
Existing electric hydraulic power-assisted steering pump assembly includes for installing motor, hydraulic gear pump and the installation of oil can
Matrix needs multiple positioning in order to which motor, oil can and hydraulic gear pump to be mounted in installation base body, and accumulation is caused to miss
Difference increases, and will cause hydraulic gear pump and eccentric wear, the risks such as noise increasing occurs.In addition, the connection of motor and installation base body uses
Easily there is poorly sealed, degree of protection when vehicle operation is under the adverse circumstances such as jolt, wave in the mode of sealant sealing
The risks such as decline.
Utility model content
The utility model is in view of the deficienciess of the prior art, provide a kind of simple and compact for structure, saving installation space, section
The about electric hydraulic power-assisted steering pump assembly of cost.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of electric hydraulic power-assisted steering pump assembly,
Including motor, hydraulic gear pump, oil can and end cap valve block, the hydraulic gear pump and oil can are mounted on the end cap valve block
Side, and the hydraulic gear pump is mounted on the inside of the oil can, the motor is mounted on the another of the end cap valve block
Side, the oil pump axis connection of the output shaft of the motor and the hydraulic gear pump install the institute of the hydraulic gear pump side
End cap valve block is stated equipped with sealed groove, the sealed groove include circumferential external groove and in the circumferential external groove in
The both ends of separation trench, the interior separation trench are connect with the circumferential external groove respectively, and the outer annular groove is surrounded
Region be separated into gear pump oil suction chamber and pressure oil cavity, fuel feed hole is equipped in the gear pump oil suction chamber, the fuel feed hole is logical
It crosses oil inlet passage to be connected to the oil inlet interface in the end cap valve block, oil outlet, the oil outlet is equipped in the pressure oil cavity
It is connected to by oil discharge passage with the oil out port in the end cap valve block.
The beneficial effects of the utility model are: low-pressure area oil sucting cavity and higher-pressure region oil outlet chamber are isolated by sealed groove
It opens, guarantees the circulation of entire oil circuit and the stability of oil circuit；Motor can be directly mounted at the side of end cap valve block, end cap valve block
As electric motor end cap, hydraulic gear pump is mounted on the other side of end cap valve block, while end cap valve block is used as hydraulic gear pump again
Front cover.The utility model structure is simple, installation space is saved, due to saving intermediate connecting ring section, electronic axle and gear pump shaft
Concentricity also ensured, can extend the service life of electric hydraulic power-assisted steering pump assembly, saving use and safeguard at
This.
Based on the above technical solution, the utility model can also do following improvement.
Further, the end cap valve block is equipped with threaded hole and dowel hole for installing the oil pump.
Beneficial effect using above-mentioned further scheme is that the outside of the circumferential external groove is arranged in threaded hole, installation
It is positioned when oil pump using dowel hole, then oil pump is mounted on the side of end cap valve block, end cap valve block by threaded hole by screw
It is convenient for installation and maintenance quick directly as the lid of hydraulic gear pump, save installation space, save the cost.
Further, the circumferential external groove includes sequentially connected first lug boss, the second lug boss, third protrusion portion
And the 4th lug boss, first lug boss, third protrusion portion pass through straightway respectively and connect with the 4th lug boss, described
It is connected respectively by indent camber line between first lug boss and the second lug boss, the second lug boss and third protrusion portion.
Beneficial effect using above-mentioned further scheme is that sequentially connected first to third protrusion portion cooperates interior separation ditch
Slot forms pressure oil cavity, and the 4th lug boss and interior separation trench cooperatively form gear pump oil suction chamber, increase pressure oil cavity, gear
The volume of oil suction chamber is pumped, to increase the oil reserve of pump assembly, further increases the stability of oil circuit, oil liquid flowing is reduced and makes an uproar
Sound.
Further, oil pump axis hole is equipped in the gear pump oil suction chamber.
Beneficial effect using above-mentioned further scheme is that the oil pump shaft of hydraulic gear pump passes through oil pump axis hole and passes through shaft coupling
The motor axis connection of device and motor realizes the installation of the pump shaft of motor shaft and hydraulic gear pump, at the same meet to motor shaft with
The requirement of the concentricity of mekydro pump shaft.
Further, the end cap valve block is equipped with the positioning spigot connecting with the motor casing, the motor
It is connect by fastening bolt with the end cap valve block.
Beneficial effect using above-mentioned further scheme is to be connected together by positioning spigot and motor, and pass through tight
Fixing bolt is locked, not only convenient and fast connection, and stable connection, even jolt wave in the environment of, still can
Guarantee motor is stably connected with end cap valve block.
Further, the oil inlet passage is equipped with sealing blanking cover.
Beneficial effect using above-mentioned further scheme is to guarantee the steady flow of hydraulic oil and the matter of hydraulic oil in oil circuit
Amount, avoids being influenced by extraneous factor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model sealed groove；
Fig. 3 is the mounting structure schematic diagram of the utility model hydraulic gear pump；
In figure, 1, end cap valve block；2, sealed groove；21, circumferential external groove；22, interior separation trench；23, the first protrusion
Portion；24, the second lug boss；25, third protrusion portion；26, the 4th lug boss；3, pressure oil cavity；4, oil outlet；5, oil out port；
6, oil inlet interface；7, hydraulic gear pump；8, oil inlet passage；9, blanking cover；10, gear pump oil suction chamber；11, motor；12, oil can；
13, fastening bolt；14, oil discharge passage；15, threaded hole；16, oil pump axis hole.17, dowel hole；18, seal groove.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with example, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As shown in Figure 1-Figure 3, a kind of electric hydraulic power-assisted steering pump assembly, including motor 11, hydraulic gear pump 7, oil
Pot 12 and end cap valve block 1, the hydraulic gear pump and oil can are mounted on the side of the end cap valve block, and the hydraulic gear pump
It is mounted on the inside of the oil can, the motor is mounted on the other side of the end cap valve block, the output shaft of the motor
With the oil pump axis connection of the hydraulic gear pump, the end cap valve block for installing the hydraulic gear pump side is equipped with sealing ditch
Slot 2, the sealed groove be equipped with sealing element, the sealed groove include circumferential external groove 21 and be set to the circumferential external groove
In interior separation trench 22, the both ends of the interior separation trench connect with the circumferential external groove respectively, and will the annular it is outer
The region that groove surrounds is separated into gear pump oil suction chamber 10 and pressure oil cavity 3, is equipped with fuel feed hole, institute in the gear pump oil suction chamber
It states fuel feed hole to be connected to by oil inlet passage 8 with the oil inlet interface 6 in the end cap valve block, oil outlet is equipped in the pressure oil cavity
4, the oil outlet is connected to by oil discharge passage 14 with the oil out port 5 in the end cap valve block.
The end cap valve block is equipped with threaded hole 15 and dowel hole 17 for installing the oil pump.It is fixed using positioning pin
Oil pump is mounted on the side of end cap valve block by threaded hole by position, screw, end cap valve block directly as hydraulic gear pump front cover,
It is convenient for installation and maintenance quick, save installation space, save the cost.
The circumferential external groove include sequentially connected first lug boss 23, the second lug boss 24, third protrusion portion 25 and
4th lug boss 26, first lug boss, third protrusion portion pass through straightway respectively and connect with the 4th lug boss, described
It is connected respectively by indent camber line between first lug boss and the second lug boss, the second lug boss and third protrusion portion.Successively connect
First connect to third protrusion portion cooperates interior separation trench to form pressure oil cavity, and the 4th lug boss is cooperatively formed with interior separation trench
Gear pump oil suction chamber, increases the volume of pressure oil cavity, gear pump oil suction chamber, simultaneously because removing hydraulic pump front cover, reduces
Hydraulic pump the space occupied in oil can further increases the stability of oil circuit to increase the oil reserve of pump assembly, reduces
Working oil temperature reduces oil liquid flow noise.
Oil pump axis hole 16 is equipped in the gear pump oil suction chamber.Axis hole opens up seal groove 18, is equipped with sealing ring in seal groove.
The oil pump shaft of hydraulic gear pump passes through oil pump axis hole by the motor axis connection of shaft coupling and motor, realize motor shaft with it is hydraulic
The installation of the pump shaft of gear pump, while meeting the requirement to motor shaft and the concentricity of mekydro pump shaft.
The end cap valve block is equipped with the positioning spigot connecting with the motor casing, and the motor passes through fastening spiral shell
Bolt 13 is connect with the end cap valve block.It is connected together by positioning spigot and motor, by motor and is held by fastening bolt
Lid valve block is locked, not only convenient and fast connection, and stable connection, even jolt wave in the environment of, still can
Guarantee motor is stably connected with end cap valve block.
The oil inlet passage is equipped with sealing blanking cover.Guarantee the steady flow of hydraulic oil and the quality of hydraulic oil in oil circuit,
It avoids being influenced by extraneous factor.
End cap valve block is connected as one as installation base body and hydraulic gear pump installation, and sealing is processed in end cap valve block
Gear pump oil suction chamber is isolated with pressure oil cavity by sealed groove for groove, and end cap valve block has the interior oil being connected to oil can
Road, the hydraulic oil in oil can are communicated by oil inlet interface with hydraulic gear pump oil suction chamber；At pressure oil cavity be arranged oil outlet with
External oil out port communicates；The other end processing positioning spigot and installation screw of end cap valve block are used directly as electric motor end cap,
It is good that end cap valve block is connected to motor firm and sealing effect, sealed groove is arranged in end cap valve block is isolated and be divided into oil inlet and fuel-displaced
Two chambers, end cap valve block can be directly as the front covers of hydraulic gear pump, while but also as electric motor end cap, which has knot
The advantages of structure is compact, saves installation space and cost, due to saving intermediate connecting ring section, motor shaft is coaxial with gear pump shaft
Degree is protected, and can extend the service life of assembly, saves use and maintenance cost.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of electric hydraulic power-assisted steering pump assembly, including motor, hydraulic gear pump, oil can and end cap valve block, the liquid
Knob wheel pump and oil can are mounted on the side of the end cap valve block, and the hydraulic gear pump is mounted on the inside of the oil can,
The motor is mounted on the other side of the end cap valve block, the oil pump of the output shaft of the motor and the hydraulic gear pump
Axis connection, which is characterized in that the end cap valve block for installing the hydraulic gear pump side is equipped with sealed groove, the sealing
Groove includes circumferential external groove and the interior separation trench in the circumferential external groove, the both ends difference of the interior separation trench
It is connect with the circumferential external groove, and the region that the circumferential external groove surrounds is separated into gear pump oil suction chamber and pressure oil
Chamber, fuel feed hole is equipped in the gear pump oil suction chamber, and the fuel feed hole passes through the oil inlet on oil inlet passage and the end cap valve block
Orifice, oil outlet is equipped in the pressure oil cavity, and the oil outlet passes through going out on oil discharge passage and the end cap valve block
Oily orifice.
2. electric hydraulic power-assisted steering pump assembly according to claim 1, which is characterized in that state end cap valve block and be equipped with use
In the threaded hole and dowel hole of installing the oil pump.
3. electric hydraulic power-assisted steering pump assembly according to claim 1 or 2, which is characterized in that the circumferential external groove
Including sequentially connected first lug boss, the second lug boss, third protrusion portion and the 4th lug boss, first lug boss,
Three lug bosses pass through straightway respectively and connect with the 4th lug boss, first lug boss and the second lug boss, second convex
It rises and is connected respectively by indent camber line between portion and third protrusion portion.
4. electric hydraulic power-assisted steering pump assembly according to claim 1, which is characterized in that the end cap valve block is equipped with
The positioning spigot connecting with the motor casing, the motor are connect by fastening bolt with the end cap valve block.
5. electric hydraulic power-assisted steering pump assembly according to claim 1, which is characterized in that in the gear pump oil suction chamber
Equipped with oil pump axis hole.
6. electric hydraulic power-assisted steering pump assembly according to claim 1, which is characterized in that the oil inlet passage is equipped with
Seal blanking cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821146533.0U CN208593431U (en) | 2018-07-19 | 2018-07-19 | A kind of electric hydraulic power-assisted steering pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821146533.0U CN208593431U (en) | 2018-07-19 | 2018-07-19 | A kind of electric hydraulic power-assisted steering pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208593431U true CN208593431U (en) | 2019-03-12 |
Family
ID=65603288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821146533.0U Active CN208593431U (en) | 2018-07-19 | 2018-07-19 | A kind of electric hydraulic power-assisted steering pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208593431U (en) |
-
2018
- 2018-07-19 CN CN201821146533.0U patent/CN208593431U/en active Active
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