CN208702968U - Hydraulic servo - Google Patents
Hydraulic servo Download PDFInfo
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- CN208702968U CN208702968U CN201821383379.9U CN201821383379U CN208702968U CN 208702968 U CN208702968 U CN 208702968U CN 201821383379 U CN201821383379 U CN 201821383379U CN 208702968 U CN208702968 U CN 208702968U
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- driving member
- throttle valve
- hydraulic servo
- pushing part
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model provides hydraulic servo, belongs to field of mechanical technique.It solves the problems, such as that the throttle valve in existing hydraulic servo is easy to damage.This hydraulic servo, including cylinder body and piston, throttle valve is connected at piston, throttle valve includes valve body, the pushing mechanism for being sequentially connected with clutch pedal is additionally provided with outside cylinder body, throttle valve lever in the shape of a rod is additionally provided in valve body, throttle valve lever includes interior bar, outer bar and the elastic component being set between the interior bar and outer bar, the outer end of outer bar stretches out the valve body and can lean with the pushing mechanism, the pushing mechanism can push the throttle valve lever to be pressed into the valve body and close the throttle valve, and the outer bar can also be continued to press on after the throttle valve is in close state until the pushing mechanism acts on the valve body to push the valve body to move into cylinder body.This hydraulic servo has the advantages that stability in use is good and versatility is good.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of hydraulic servo.
Background technique
Hydraulic servo is the device that clutch used for vehicles and braking system carry out operation auxiliary, in making for vehicle
With occupying highly important status in the process, especially in the clutch system of the poor agricultural machine of working environment, hydraulic booster
The quality of device is particularly important.
For example, people devise a kind of operating method of tractor clutch manipulation device with hydraulic booster, and apply
Chinese patent (its application No. is: 201510110056.7；Its notification number are as follows: CN104728309B), the tractor clutch
Manipulation device includes the internal power-assisted oil cylinder with cavity, is provided with the work that cavity is divided into epicoele and cavity of resorption in power-assisted oil cylinder
It fills in, the oil inlet for offering the oil outlet being connected to epicoele respectively on power-assisted oil cylinder and being connected to cavity of resorption, piston and piston rod
The oil duct that can be connected to epicoele and cavity of resorption is inside offered, the outer end of piston rod is connected with clutch pull rod, the inner cavity activity of piston rod
Throttle valve is set, the prominent piston rod in one end of the throttle valve and with the top plate contact for being connect with clutch pedal, the other end
Nose cone for blocking oil duct is set.The manipulation device in use, operator can let slip the clutch, pass through top plate will
Throttle valve is pushed into piston rod, is blocked oil duct by nose cone, then the pressure of cavity of resorption constantly rises in the case where hydraulic injection
Height, and then push piston to move up, and the clutch pull rod being connected with piston rod outer end is pulled to move up, play hydraulic booster
Effect.
But the particularity of the working environment because of agricultural machinery, above-mentioned tractor clutch manipulation device pole in use
Situations such as easily generation accident extinguishing or hydraulic system stop working, so that it is hydraulic to cause hydraulic system that can not provide power-assisted oil cylinder
Power-assisted, or be when operator trample clutch pedal movement it is too fast, cause hydraulic system provide hydraulic booster speed
Not enough, at this point, if due to operator restarts engine or other reasons after needing to move back clutch separation neutral gear again after
Continuous to trample clutch pedal, the active force of operator's pushes pedals will be acted directly on the outer end of throttle valve by top plate,
Because throttle valve is integrally in elongated rod shape and is arranged in piston rod, its own is more very thin, and intensity is insufficient, by the throttle valve come
It pushes entire piston and drives the clutch pull rod being connected with piston rod mobile, throttle valve can be made to bear great active force,
Throttle valve easily bends abrasion, then influences in the use process after power-assisted oil cylinder, throttle valve moves and close in piston rod
The effect of envelope seriously affects the stability that power-assisted oil cylinder uses.
Utility model content
The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, to propose a kind of hydraulic servo,
The technical problem to be solved is that how to guarantee hydraulic booster it is insufficient after the stability that uses of power-assisted oil cylinder.
The purpose of this utility model can be realized by the following technical scheme:
Hydraulic servo, including cylinder body and it is set to the intracorporal piston of cylinder, it is connected with throttle valve at the piston, institute
Stating throttle valve includes valve body and the body portion stretching cylinder body, is additionally provided with outside the cylinder body for passing with clutch pedal
The pushing mechanism of dynamic connection, which is characterized in that throttle valve lever in the shape of a rod is additionally provided in the valve body, the throttle valve lever includes
Interior bar positioned at throttle valve lever inner end, the outer bar positioned at throttle valve lever outer end and the bullet being set between the interior bar and outer bar
Property part, the outer end of the outer bar stretches out the valve body and can lean with the pushing mechanism, and the pushing mechanism can push institute
It states throttle valve lever to be pressed into the valve body and close the throttle valve, and can also after the throttle valve is in close state
The outer bar is continued to press on until the pushing mechanism acts on the valve body to push the valve body to move into cylinder body
It is dynamic.
When this hydraulic servo normal use, the hydraulic system of cylinder body and fuel feeding is correspondingly connected with, is by hydraulic system
Cylinder body inner piston is mobile to provide hydraulic booster, operator not let slip the clutch when, throttle valve is in the open state, piston
The oil liquid of two sides can mutually circulate.When operator's let slip the clutch, the transmission effect by pushing mechanism is throttling
The outer end of valve rod, and gradually throttle valve lever is pushed to move into valve body, up to throttle valve lever inner end and the corresponding oil in throttle valve
The blocking to piston two sides cavity is realized in road cooperation.Then the pressure of the fuel feeding side of piston can gradually rise under the action of hydraulic system
Height, thus it is mobile with piston and throttle valve, play the role of hydraulic booster.When hydraulic booster deficiency (including used
Situations such as generation accident extinguishing or hydraulic system stop working in journey, to cause hydraulic system that can not provide liquid to power-assisted oil cylinder
Press power-assisted, or be when operator trample clutch pedal movement it is too fast, cause hydraulic system provide hydraulic booster speed
Spend situations such as inadequate), when operator is continuously stepping on clutch pedal, the inner end of throttle valve lever is close because realizing with oil duct cooperation
Envelope, then the interior bar of throttle valve lever inner end will keep synchronous with piston, will not occur in the insufficient situation of hydraulic booster biggish
Displacement, at this point, the outer bar of throttle valve lever outer end under the continuous action of pushing mechanism, the elastic force for overcoming elastic component is acted on inside
The direction of bar is mobile, i.e., the entire length of throttle valve lever is compressed.Simultaneously, pushing mechanism perseveration and act on valve body
Outer end, operator will be transferred directly to valve body to the pedal force that clutch pedal applies by pushing mechanism, and push valve
Body is moved into cylinder body, and then drives the clutch pull rod for mutually fixing with valve body mobile.
I.e. in the insufficient situation of hydraulic booster, it will be compressed with the throttle valve lever of pushing mechanism transmission connection, operator
The active force that member tramples clutch pedal will be directly delivered to that size is bigger, on the higher throttling valve body of intensity, directly drive
Valve body is mobile, avoids the lower throttle valve lever of intensity and deforms situations such as damaging, so that this hydraulic servo is hydraulic
It after the situation of power-assisted deficiency, remains to work normally, ensure that the stability that hydraulic servo uses.
In above-mentioned hydraulic servo, the pushing mechanism includes pushing part and limiting section, and the pushing part can be supported
It leans against the outer end of the outer bar and pushes the outer bar that the elastic force of the elastic component is overcome to act on to the movement of the direction of the interior bar,
And when the pushing part pushes outer bar that the elastic force of elastic component is overcome to act on mobile, the limiting section can act on the valve body
Outer end simultaneously pushes the valve body to move into cylinder body.Pushing mechanism pushes throttle valve lever to act by pushing part, passes through limit
Portion pushes the valve body mobile, and the stress point of two reaction forces is separated, avoid active force stress point concentrate on the same point and
It causes pushing mechanism impaired by reaction force, ensure that the stability that hydraulic servo uses.
In above-mentioned hydraulic servo, the pushing part is in the shape of a rod, which can be in the drive of clutch pedal
Under swing and make the side of pushing part and the outside end of outer bar to lean around itself one end, the pushing part and limiting section are point
Body formula structure, and have between the pushing part and the valve body outer end when the limiting section acts on the outer end of the valve body
Spacing.Pushing part is in the shape of a rod and is obliquely installed, and, against throttle valve lever is pushed, can make clutch pedal by its side, push
The axis direction of the structures such as mechanism and cylinder body is staggered, and shortens the axial length of entire hydraulic servo, facilitates installation, and energy
The interference between clutch pull rod is avoided, guarantees the stability that hydraulic servo uses after installing, meanwhile, because of throttle valve lever
Outer end stretch out valve body outer end, then pushing part can normally push throttle valve lever, and when hydraulic booster deficiency, push
Portion and the outer end of valve body act against the outer end of valve body against limiting section before, can avoid pushing part in the shape of a rod with outside valve body
Damage that deformation occurs when end is against extruding, ensure that the stability that this hydraulic servo uses.
In above-mentioned hydraulic servo, the pushing mechanism further includes tubular driving member one and driving member
Two, the driving member one and driving member two are coaxially set and can both be used for around own axis, the driving member one
It being sequentially connected with the clutch pedal and the pushing part, the lateral wall of the driving member two has the driving section of protrusion,
The driving section is connect with the outer end of the valve body by link transmission, and the limiting section transmission connection is at the driving member one
And can be rotated with the driving member one around the axis of driving member one, the limiting section is in the axis rotation around the driving member one
It can be resisted against on the driving section of driving member two and the driving member two is driven to rotate around the axis of itself.When hydraulic booster deficiency
When, driving member one is acted on by limiting section on the driving section of driving member two, drives the rotation of driving member two, and then pass through connecting rod
Band moving valve is mobile, and the compression for avoiding throttle valve lever is impaired, ensure that stability when use.In addition, relative to existing skill
In art, clutch pull rod is connected to the outer end of valve body, the mode that can only be vertically arranged, this hydraulic servo not only can be by clutch
Device pull rod is connected to the outer end of valve body, realizes the vertical direction setting of hydraulic servo, can also set in two lateral wall of driving member
One or more driving sections are set, clutch pull rod is connected on one of driving section, then can be passed through when driving member two rotates
Driving section pulls up clutch pull rod so that this hydraulic servo also can be carried out it is horizontally disposed, i.e., this hydraulic booster fill
Horizontally disposed or vertical arrangement can selectively be carried out according to the demand in actual arrangement space by setting, and installation is more flexible, avoids
Limited install by force of installation space and caused by using interference, ensure that the stability of work.
In above-mentioned hydraulic servo, the limiting section include the limited block fixed with one phase of driving member and
One end of the caging bolt being threaded on limited block, the caging bolt can lean with the driving section.It is entire hydraulic
Power assisting device inevitably will appear error when producing assembly, and limiting section is designed as caging bolt, and each liquid can be directed to before factory
Press power assisting device carry out limiting section position adjust, guarantee limiting section can efficiently act against valve body outer end and to throttle valve lever into
Row protection, is further ensured that the stability that hydraulic servo uses.
As another situation, in above-mentioned hydraulic servo, the limiting section is in elongated rod shape and along driving member one
Axis direction be connected on the lateral wall of the driving member one, one end of the limiting section is stretched to the direction of the driving member two
The end face of the driving member one out.In order to avoid limiting section shakes in actual use and causes use process unstable,
It can be produced after the assembly is completed in entire hydraulic servo, limiting section is connected on driving member one using modes such as welding, from
And guarantee the stability of hydraulic servo.
In above-mentioned hydraulic servo, swingable one end is hinged at the driving member one and on pushing part
Swivel nut, two swivel nuts are oppositely arranged and the two is threadedly coupled with the both ends of a screw rod respectively.Entire hydraulic servo is producing
It inevitably will appear error when assembly, if between the transmission distance between pushing part and driving member one and the moving distance of limiting section
It mismatches, then the swivel nut at adjustable screw both ends readjusts drive position relative to screw position, and then guarantees entire liquid
Press the stability of power assisting device work.
As another situation, in above-mentioned hydraulic servo, the pushing part is in the shape of a rod, the pushing part can from
Swing and make the side of pushing part and the outside end of outer bar to lean under the drive of clutch pedal around itself one end, the limit
Portion is located at side of the pushing part towards valve body outer end, and limiting section and pushing part are an integral structure, when the pushing part
When pushing outer bar that the elastic force of elastic component is overcome to act on mobile, the limiting section can be resisted against the outer end of the valve body.It is helped when hydraulic
When power deficiency, by the promotion of pushing part, throttle valve lever, which is compressed into, to be almost entirely retracted in valve body, then the limit of pushing part side
Position portion can abut directly against valve body outside end and directly apply mobile active force to valve body, here, can be by selecting intensity
Limiting section and pushing part is made in higher metal or alloy material, so that it is curved to guarantee that pushing part will not occur in pushing course
Folding or damage, simplify structure.
In above-mentioned hydraulic servo, the piston will be separated into oil suction chamber and oil outlet chamber in the cylinder body, described
The oil duct that can be connected to the oil suction chamber and oil outlet chamber is offered in piston, the throttle valve is set at the oil duct, the section
The overflow ducts that can be connected to the oil duct are also provided in stream valve rod, are provided with overflow valve in the overflow ducts.In order to make liquid
Press power-assisted offer during avoid occur piston oil inlet side oil pressure is excessive, can pass through the overflow valve in throttle valve lever general
The oil pressure of oil inlet side is discharged, and guarantees the safety used.
Compared with prior art, this hydraulic servo has the advantage that
1, the throttle valve lever in this hydraulic servo is retractable structure, and when hydraulic booster deficiency, pushing part can be pressed
Contracting throttle valve lever simultaneously pushes directly on valve body movement by limiting section, avoids the lower throttle valve lever of intensity in hydraulic booster deficiency
In the case where free damage, ensure that the subsequent stability used.
2, this hydraulic servo is by the design of the structure of tubular driving member one and driving member two, so that clutch
Pull rod can be connected on driving member two or valve body outer end as needed, to realize that this entire hydraulic servo can horizontal cloth
It sets or arranges vertically, be able to satisfy the demand in different mounting arrangements spaces, versatility is good, and is avoided that due to installation space is limited
The case where interfering with other structures and influencing stability in use.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of this hydraulic servo embodiment one.
Fig. 2 is the schematic cross-sectional view of the throttle valve lever of this hydraulic servo embodiment one.
Fig. 3 is the structural schematic diagram of this hydraulic servo embodiment two.
Fig. 4 is the structural schematic diagram at another visual angle of this hydraulic servo embodiment two.
Fig. 5 is the structural schematic diagram of this hydraulic servo embodiment three.
In figure, 1, cylinder body；11, oil suction chamber；12, oil outlet chamber；13, oil duct；2, piston；3, valve body；4, throttle valve lever；41,
Interior bar；42, outer bar；43, elastic component；5, pushing mechanism；51, pushing part；52, limiting section；52a, limited block；52b, limit spiral shell
Bolt；53, driving member one；54, driving member two；54a, driving section；55, connecting rod；56, swivel nut；57, screw rod；6, clutch pedal；7,
Clutch pull rod.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one
As shown in Figure 1, this hydraulic servo includes cylinder body 1 and the piston being set in cylinder body 12, piston 2 is by cylinder body
It is separated into mutually independent oil suction chamber 11 and oil outlet chamber 12 in 1, runs through on cylinder body 1 and offers the oil inlet being connected with oil suction chamber 11
Mouthful and the oil outlet that is connected with oil outlet chamber 12, offer the oil duct 13 that can be connected to oil suction chamber 11 and oil outlet chamber 12 in piston 2,
Throttle valve is connected at oil duct 13.Wherein, throttle valve includes the cylindrical valve body 3 being connected with piston 2 and is threadedly coupled
Attachment cap annular in shape in 3 inner end of valve body is provided with the oil circuit that can be connected to oil suction chamber 11 and oil outlet chamber 12, valve in valve body 3
Cylinder body 1 is stretched out in the outer end of body 3, and the outer end of throttle valve lever 4 in the shape of a rod and throttle valve lever 4 is axially equipped in valve body 3 from valve body 3
Outer end is stretched out, the inner end of throttle valve lever 4 have can when being moved into cylinder body 1 with attachment cap end against and block the envelope of oil circuit
Stifled portion is additionally provided with the reset spring that throttle valve lever 4 can be made to be displaced outwardly in valve body 3.It is additionally provided at the outer end of throttle valve lever 4
Pushing mechanism 5 for being sequentially connected with clutch pedal 6, the pushing mechanism 5 can be resisted against outer end and the promotion of throttle valve lever 4
Throttle valve lever 4 is moved into cylinder body 1, and the outer end of valve body 3 also passes through connector and is connected with clutch pull rod 7.
As shown in Fig. 2, throttle valve lever 4 includes positioned at the interior bar 41 of 4 inner end of throttle valve lever, positioned at 4 outer end of throttle valve lever
Outer bar 42 and the elastic component 43 being set between interior bar 41 and outer bar 42.Specifically, interior bar 41 and outer bar 42 are in the shape of a rod
And be distributed by the outside extreme direction coaxial line in the inner end of throttle valve lever 4, closure part is fixed on the inner end of interior bar 41, the outer end of interior bar 41
With the convex edge outwardly protruded.The outer end of outer bar 42 can stretch out the outer end of valve body 3, and the inner end of outer bar 42, which has to be cylindrical in shape, to be arranged
Portion, the sleeved part are set on the outside of the outer end of interior bar 41, have inwardly projecting gear edge on the inside of the inner end of sleeved part, and elastic component 43 is
The spring and both ends for being set in the outside of interior bar 41 and elastic component 43 are respectively acting between closure part and sleeved part, in the elastic component
Under 43 elastic force effect, keeping off edge and convex edge can be abutted each other；Above-mentioned action of reset spring is in outer bar 42, it is preferred that resets bullet
One end of spring can be resisted against the inner end of outer bar 42.
Pushing mechanism 5 includes pushing part 51 and limiting section 52, and pushing part 51 can be resisted against the outer end of outer bar 42 and push outer
It is mobile to the direction of interior bar 41 that bar 42 overcomes the elastic force of elastic component 43 to act on, and when pushing part 51 pushes outer bar 42 to overcome elastic component
When 43 elastic force acts on mobile, limiting section 52 can act on the outer end of valve body 3 and valve body 3 is pushed to move into cylinder body 1.
In the present embodiment, drive cavity is offered along the axis of throttle valve lever 4 in connector, the two sides of the drive cavity open up
To the lateral wall of connector two sides, pushing part 51 is in the shape of a rod, and the axis of the pushing part 51 and throttle valve lever 4 is staggered and is arranged in
In drive cavity, the both ends of pushing part 51 are stretched out from the two sides of drive cavity respectively.One end of pushing part 51 and connector or installation are originally
The place of hydraulic servo is hinged, and the other end and clutch pedal 6 are sequentially connected, here, pushing part 51 and clutch pedal 6
Between specific drive mechanism existing drive mechanism can be used, the pushing part 51 can under the drive of clutch pedal 6 around from
Body hinged end swings and makes the side of pushing part 51 and the outside end of the outer bar 42 protruded into drive cavity to lean, limiting section 52
Positioned at pushing part 51 towards the side of 3 outer end of valve body, and limiting section 52 and pushing part 51 are an integral structure, when pushing part 51 pushes away
When dynamic outer bar 42 overcomes the elastic force of elastic component 43 to act on mobile, limiting section 52 can be resisted against the outer end of valve body 3.
When this hydraulic servo normal use, as shown in Figure 1, being vertical arrangement, by the oil inlet of cylinder body 1 and confession
The hydraulic system of oil is correspondingly connected with, and provides hydraulic booster by the movement that hydraulic system is 1 inner piston 2 of cylinder body.When operator steps on
When lower clutch pedal 6, the outer end that throttle valve lever 4 is put and be resisted against on pushing part 51 is made by the transmission of pushing mechanism 5, gradually
Push throttle valve lever 4 to overcome the elastic force of reset spring to act on to move into valve body 3, until the closure part of 4 inner end of throttle valve lever with
The blocking to 2 two sides cavity of piston is realized in the cooperation of corresponding oil duct 13 in piston 2.The then pressure of 2 fuel feeding side oil suction chamber 11 of piston
It can gradually rise under the action of hydraulic system, to be moved up with piston 2 and valve body 3, and then drive on clutch pull rod 7
It moves, plays the role of hydraulic booster.
When hydraulic booster deficiency, here, the situation of hydraulic booster deficiency include in use process occur accident extinguishing or
Situations such as hydraulic system stops working to cause hydraulic system that can not provide hydraulic booster to power-assisted oil cylinder, or is as behaviour
Situations such as movement for trampling clutch pedal 6 as personnel is too fast, causes the speed of hydraulic system offer hydraulic booster inadequate, is being grasped
When being continuously stepping on clutch pedal 6 as personnel, the inner end of throttle valve lever 4 because closure part realized against cooperation with 13 inner wall of oil duct it is close
Envelope, then the interior bar 41 of 4 inner end of throttle valve lever will be synchronous with the holding of piston 2, will not occur in the insufficient situation of hydraulic booster compared with
Big displacement.At this point, the outer bar 42 of 4 outer end of throttle valve lever under the continuous action of pushing part 51, will overcome the bullet of elastic component 43
Power is acted on to the movement of the direction of interior bar 41, i.e., the entire length of throttle valve lever 4 is compressed.Simultaneously, on the upside of pushing part 51
Limiting section 52 can act on the outer end of valve body 3 with the upper pendulum of pushing part 51, and operator steps on 6 application of clutch pedal
Legpower will be transferred directly to valve body 3 by the limiting section 52, and valve body 3 is pushed to move into cylinder body 1, and then drive is used for and valve
The fixed clutch pull rod 7 of 3 phase of body moves up.
I.e. in the insufficient situation of hydraulic booster, the throttle valve lever 4 being sequentially connected with pushing mechanism 5 will be compressed, and be operated
The active force that personnel trample clutch pedal 6 will be directly delivered to that size is bigger, the higher valve body 3 of intensity by limiting section 52
On, it is mobile to directly drive valve body 3, avoids the lower throttle valve lever 4 of intensity and deforms situations such as damaging, so that this hydraulic is helped
Power device remains to work normally after the situation of hydraulic booster deficiency, ensure that the stability that hydraulic servo uses.
Embodiment two
As shown in Figure 3 and Figure 4, the present embodiment and the technical solution of embodiment one are essentially identical, the difference is that:
Pushing part 51 and limiting section 52 are split type structure, and the pushing part when limiting section 52 acts on the outer end of valve body 3
There is spacing between 51 and 3 outer end of valve body.
Specifically, pushing mechanism 5 further includes cylindrical driving member 1 and driving member 2 54, driving member one
53 and driving member 2 54 be coaxially set and be both set in outside a transmission shaft, driving member 1 and driving member 2 54 can around from
Body axis rotate, and are connect by an interconnecting piece with clutch pedal 6 on driving member 1, interconnecting piece is also swingable with pushing part 51
One end transmission connection.The lateral wall of driving member 2 54 have several protrusions driving section 54a, one of driving section 54a with
The connector of the outer end of valve body 3 is sequentially connected by connecting rod 55, and limiting section 52 is sequentially connected at driving member 1 and can be with transmission
Part 1 is rotated around the axis of driving member 1, which can be resisted against transmission in the axis rotation around driving member 1
On one of driving section 54a of part 2 54 and driving member 2 54 is driven to rotate around the axis of itself.
In the present embodiment, one end swingable on the interconnecting piece of driving member 1 and pushing part 51 is hinged with spiral shell
Set 56, two swivel nuts 56 are oppositely arranged and the two is threadedly coupled with the both ends of a screw rod 57 respectively；Limiting section 52 includes and transmission
The caging bolt 52b one 53 phase of part fixed limited block 52a and be threaded on limited block 52a, the one of caging bolt 52b
End can lean with driving section 54a, certainly, according to need to demand, limiting section 52 can also be in elongated rod shape and along driving member 1
Axis direction be connected on the lateral wall of driving member 1, one end of limiting section 52 is stretched out to the direction of driving member 2 54 to be driven
The end face of part 1.It is also provided with the overflow ducts that can be connected to oil duct 13 in throttle valve lever 4, is provided with overflow in overflow ducts
Valve, the overflow valve include steel ball and overflow spring.
Hydraulic servo in the present embodiment when in use, as shown in Figure 3 and Figure 4, can using horizontally disposed mode
Clutch pull rod 7 is connected on one of driving section 54a in the outside of driving member 2 54, other driving sections 2 54 are according to need
It can be used as position limiting structure or other purposes.
When hydraulic enough, pushing part 51 pushes throttle valve lever 4 to block oil duct 13, drives and lives under the action of hydraulic booster
Plug 2 and valve body 3 are moved into cylinder body 1, and because throttle valve lever 4 is uncompressed, the rotation amplitude of driving member 1 is smaller, and limiting section 52 is not
It leans with driving member 2 54, driving member 2 54 can be driven to rotate by connecting rod 55 by valve body 3, and then by driving member 2 54
Driving section 54a drives clutch pull rod 7 to move up.
When hydraulic booster deficiency, piston 2 is difficult to move under hydraulic booster, and throttle valve lever 4 is held by pushing part 51
Continue active force and compressed, the rotation amplitude of driving member 1 is larger, and driving member 1 is passed through by the drive of clutch pedal 6
Limiting section 52 acts on the driving section 54a of driving member 2 54, and driving member 2 54 is driven to rotate synchronously, and then passes through 55 band of connecting rod
Moving valve 3 is mobile, and the compression for avoiding throttle valve lever 4 is impaired, ensure that stability when use.At the same time, clutch is drawn
Bar 7 also in the rotation process of driving member 2 54, is transmitted portion 54a drive and moves up.
Certainly, according to different arrangement demands, clutch pull rod 7 can also be connected on the connector of 3 outer end of valve body, and handle
Hydraulic servo in the present embodiment is arranged vertically, equally possible.I.e. this hydraulic servo can be according to actual arrangement space
Demand, selectively carry out horizontally disposed or vertical arrangement, install more flexible, avoid that installation space is limited to be installed by force
Using interference caused by and, the stability of work ensure that.
Embodiment three
As shown in figure 5, the present embodiment and the structure of embodiment two are essentially identical, the difference is that:
Driving member 1 is not connect with 51 direct-drive of pushing part, but will be from by limited block 52a and caging bolt 52b
The power of clutch pedal 6 is transferred to driving member 2 54, by driving section 54a the matching by swivel nut 56 and screw rod 57 of driving member 2 54
Structure driven one end swingable to pushing part 51 is closed, certainly, length can also be used in the structure of limited block 52a and caging bolt 52b
Rod-shaped 52 scheme of another limiting section is replaced, or even can be directly linked together driving member 1 and driving member 2 54.
The hydraulic servo of the present embodiment when in use, using the scheme arranged vertically, the course of work and embodiment one
Essentially identical, i.e., the present embodiment is that structure similar in embodiment two is applied in embodiment one to carry out power transmitting.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (9)
1. hydraulic servo connects at the piston (2) including cylinder body (1) and the piston (2) being set in cylinder body (1)
There is throttle valve, the throttle valve includes valve body (3) and the valve body (3) partially stretches out the cylinder body (1), and the cylinder body (1) is gone back outside
It is provided with the pushing mechanism (5) for being sequentially connected with clutch pedal (6), which is characterized in that be additionally provided in the valve body (3)
Throttle valve lever (4) in the shape of a rod, the throttle valve lever (4) include positioned at the interior bar (41) of throttle valve lever (4) inner end, positioned at throttling
The outer bar (42) of valve rod (4) outer end and the elastic component (43) being set between the interior bar (41) and outer bar (42), it is described outer
The outer end of bar (42) stretches out the valve body (3) and can lean with the pushing mechanism, and the pushing mechanism can push the section
Stream valve rod (4) is pressed into the valve body (3) and closes the throttle valve, and after the throttle valve is in close state also
The outer bar (42) can be continued to press on until the pushing mechanism acts on the valve body (3) to push the valve body
(3) it is moved into cylinder body (1).
2. hydraulic servo according to claim 1, which is characterized in that the pushing mechanism (5) includes pushing part
(51) outer end of the outer bar (42) can be resisted against and push the outer bar (42) gram with limiting section (52), the pushing part (51)
The elastic force for taking the elastic component (43) is acted on to the movement of the direction of the interior bar (41), and when the pushing part (51) push outer bar
(42) when the elastic force of elastic component (43) being overcome to act on mobile, the limiting section (52) can act on the outer end of the valve body (3) simultaneously
The valve body (3) is pushed to move into cylinder body (1).
3. hydraulic servo according to claim 2, which is characterized in that the pushing part (51) is in the shape of a rod, the promotion
Portion (51) can swing around itself one end under the drive of clutch pedal (6) and make the side of pushing part (51) and outer bar (42)
Outside end leans, and the pushing part (51) and limiting section (52) are split type structure, and when the limiting section (52) act on
There is between the pushing part (51) and the valve body (3) outer end spacing at the outer end of the valve body (3).
4. hydraulic servo according to claim 3, which is characterized in that the pushing mechanism (5) further includes in cylinder
The driving member one (53) and driving member two (54) of shape, the driving member one (53) and driving member two (54) are coaxially set and two
Person can be used for and the clutch pedal (6) and the pushing part around own axis, the driving member one (53)
(51) be sequentially connected, the lateral wall of the driving member two (54) has a driving section (54a) of protrusion, the driving section (54a) with
The outer end of the valve body (3) is sequentially connected by connecting rod (55), and limiting section (52) transmission connection is in the driving member one
(53) it can rotate at and with the driving member one (53) around the axis of driving member one (53), the limiting section (52) is around the biography
It can be resisted against on the driving section (54a) of driving member two (54) when the axis rotation of moving part one (53) and drive the driving member two
(54) it is rotated around the axis of itself.
5. hydraulic servo according to claim 4, which is characterized in that the limiting section (52) includes and the transmission
The limited block (52a) that part one (53) is mutually fixed and the caging bolt (52b) being threaded on limited block (52a), the limit
One end of position bolt (52b) can lean with the driving section (54a).
6. hydraulic servo according to claim 4, which is characterized in that the limiting section (52) is in elongated rod shape and along biography
The axis direction of moving part one (53) is connected on the lateral wall of the driving member one (53), and one end of the limiting section (52) is to institute
The end face of the driving member one (53) is stretched out in the direction for stating driving member two (54).
7. according to hydraulic servo described in claim 4 or 5 or 6, which is characterized in that at the driving member one (53) and
Swingable one end is hinged with swivel nut (56) on pushing part (51), two swivel nuts (56) be oppositely arranged and the two respectively with a spiral shell
The both ends of bar (57) are threadedly coupled.
8. hydraulic servo according to claim 2, which is characterized in that the pushing part (51) is in the shape of a rod, the promotion
Portion (51) can swing around itself one end under the drive of clutch pedal (6) and make the side of pushing part (51) and outer bar (42)
Outside end leans, and the limiting section (52) is located at side of the pushing part (51) towards valve body (3) outer end, and limiting section
(52) it is an integral structure with pushing part (51), when the pushing part (51) promotion outer bar (42) overcomes the elastic force of elastic component (43)
When effect is mobile, the limiting section (52) can be resisted against the outer end of the valve body (3).
9. according to hydraulic servo described in Claims 2 or 3 or 4 or 5 or 6 or 8, which is characterized in that the piston (2) will
It is separated into oil suction chamber (11) and oil outlet chamber (12) in the cylinder body (1), offers and can be connected in the piston (2) and valve body (3)
The oil duct (13) of the oil suction chamber (11) and oil outlet chamber (12), interior be also provided with of the throttle valve lever (4) can be connected to the oil duct
(13) overflow ducts are provided with overflow valve in the overflow ducts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821383379.9U CN208702968U (en) | 2018-08-24 | 2018-08-24 | Hydraulic servo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821383379.9U CN208702968U (en) | 2018-08-24 | 2018-08-24 | Hydraulic servo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208702968U true CN208702968U (en) | 2019-04-05 |
Family
ID=65944256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821383379.9U Withdrawn - After Issue CN208702968U (en) | 2018-08-24 | 2018-08-24 | Hydraulic servo |
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| Country | Link |
|---|---|
| CN (1) | CN208702968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843703A (en) * | 2018-08-24 | 2018-11-20 | 玉环奥恒机械有限公司 | Hydraulic servo |
-
2018
- 2018-08-24 CN CN201821383379.9U patent/CN208702968U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843703A (en) * | 2018-08-24 | 2018-11-20 | 玉环奥恒机械有限公司 | Hydraulic servo |
| CN108843703B (en) * | 2018-08-24 | 2023-11-07 | 玉环奥恒机械有限公司 | Hydraulic booster |
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