CN219994033U - Shifting fork type hydraulic cylinder with unidirectionally adjustable rotation angle for electrohydraulic actuator - Google Patents
Shifting fork type hydraulic cylinder with unidirectionally adjustable rotation angle for electrohydraulic actuator Download PDFInfo
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- CN219994033U CN219994033U CN202321593628.8U CN202321593628U CN219994033U CN 219994033 U CN219994033 U CN 219994033U CN 202321593628 U CN202321593628 U CN 202321593628U CN 219994033 U CN219994033 U CN 219994033U
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- shifting fork
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- 230000000903 blocking effect Effects 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model discloses a shifting fork type hydraulic cylinder with unidirectionally adjustable rotation angle for an electrohydraulic actuator, which comprises: the box body is internally provided with a rotating shaft, two shifting fork plates, a pin, a sliding block and a guide rail, and is also provided with an oil cylinder, wherein the oil cylinder is arranged at one end of the box body, a piston rod of the oil cylinder extends into the box body and is fixed with the sliding block, a first oil way is arranged on a cylinder cover of the oil cylinder, a cylinder body is arranged on the outer side of a cylinder cover, a cylinder cover is covered on the outer end of the cylinder body, a second oil way is arranged on the cylinder cover, a sliding plug is arranged in the cylinder body, an inner cavity of the cylinder body is divided into two chambers by the sliding plug, the two chambers are divided into a first chamber and a second chamber, the first oil way is communicated with the first chamber, the second oil way is communicated with the second chamber, a blocking column is arranged at the inner end of the sliding plug, a channel is arranged on the cylinder cover, and the blocking column penetrates into the channel; the cylinder cover is penetrated with an adjusting column, the adjusting column consists of a smooth section and a threaded section, the threaded section is in threaded connection with the cylinder cover, and the threaded section is in threaded connection with a locking nut. The rotation angle of the shifting fork type hydraulic cylinder is unidirectionally adjustable.
Description
Technical Field
The utility model relates to the field of electrohydraulic actuators, in particular to a shifting fork type hydraulic cylinder with unidirectionally adjustable rotation angle for an electrohydraulic actuator.
Background
The principle of the shifting fork type swing hydraulic cylinder is that the reciprocating motion of the hydraulic cylinder is converted into forward and reverse swing rotation of a rotating shaft by pushing a sliding block, the sliding block drives a pin, and the pin drives a shifting fork, and meanwhile, the thrust of the reciprocating cylinder is converted into output torque of the rotating shaft. At present, the forward and reverse rotation angles of the existing shifting fork type swing hydraulic cylinders in the market are basically fixed, and are generally 90 degrees. The rotation angle cannot be changed, and the application range of the swing hydraulic cylinder can be narrowed.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: a shifting fork type hydraulic cylinder with unidirectionally adjustable rotation angle for an electro-hydraulic actuator is provided.
In order to solve the problems, the utility model adopts the following technical scheme: a single direction adjustable shift fork formula pneumatic cylinder of rotation angle for electrohydraulic actuator includes: the box, be provided with a rotation axis, two shifting fork boards, a pin, a slider, a guide rail in the box, the rotatable installation of rotation axis is in the box, the keyhole can supply the valve shaft to insert, make the rotation axis can pass through the drive valve shaft rotation and control the valve, the upper end and the rotation axis of two shifting fork boards are fixed mutually, the alignment is arranged around two shifting fork boards, the slider can be left and right sliding installs on the guide rail, the slider is located between the lower extreme of two shifting fork boards, the pin wears to locate on the slider, and insert respectively in two rectangular holes on two shifting fork boards in the both ends of pin, can drive two boards through the pin and control the swing simultaneously after the slider slides, thereby can drive rotation axis reciprocating rotation, still be provided with an hydro-cylinder, the piston rod of hydro-cylinder stretches into in the box and is fixed mutually with the slider, make the hydro-cylinder can drive slider left and right movement, be provided with first oil circuit on the cylinder cap of hydro-cylinder, the pressure oil can make the shifting fork drive the slider through first oil circuit and can make after the shifting fork board stretch out through the first oil circuit, make the rotation axis of rotation through two pistons, the piston rod of the rotation axis that can be rotated backward, the rotation axis is characterized in that the rotation axis is rotated to the rotation axis is driven to the back to the rotation to the two to the opposite direction, the piston rod is rotated: the cylinder cover is welded and sealed on the inner end of the cylinder cover, the outer end of the cylinder cover is covered with a cylinder cover, a second oil way is arranged on the cylinder cover, a sliding plug is arranged in the cylinder body, the inner cavity of the cylinder body is divided into two chambers by the sliding plug, namely a first chamber and a second chamber, the first chamber is positioned at the inner side of the sliding plug, the second chamber is positioned at the outer side of the sliding plug, the first oil way is also communicated with the first chamber, the second oil way is communicated with the second chamber, a blocking column is arranged on the inner end of the sliding plug, a channel is arranged on the cylinder cover, the blocking column penetrates through the channel, the blocking column and the channel are sealed by adopting a sealing ring, pressure oil is introduced into the second chamber through the second oil way, and meanwhile, after the oil in the first chamber is discharged through the first oil way, the sliding plug can be driven by the pressure oil to abut against the cylinder cover, and at the moment, the blocking column can penetrate through the channel and be inserted into the chamber of the cylinder under the driving of the sliding plug, so that the blocking column can shorten the reset stroke of the sliding block in the cylinder, and the rotating shaft can be reduced in reverse rotation angle; the cylinder cover is penetrated with an adjusting column, the adjusting column consists of a smooth section and a thread section, the smooth section is positioned at the inner side of the thread section, the inner end of the smooth section stretches into the second cavity, the smooth section and the cylinder cover are sealed by adopting a sealing ring, the thread section is in threaded connection with the cylinder cover, the outer end face of the thread section is provided with a screw driver groove for rotating the adjusting column, the thread section is also in threaded connection with a locking nut, the locking nut and the cylinder cover are abutted together and then can tightly press the adjusting column, and the adjusting column can be abutted when the sliding plug is reset.
Further, the one-way adjustable fork-type hydraulic cylinder of rotation angle for electrohydraulic actuator of the foregoing, wherein: the first oil way on each cylinder cover is provided with two oil ways and is respectively distributed on two opposite sides of the cylinder cover.
Further, the one-way adjustable fork-type hydraulic cylinder of rotation angle for electrohydraulic actuator of the foregoing, wherein: the second oil way on each cylinder cover is provided with two oil ways and is respectively distributed on two opposite sides of the cylinder cover.
Further, the one-way adjustable fork-type hydraulic cylinder of rotation angle for electrohydraulic actuator of the foregoing, wherein: the cylinder cover is locked on the outer end of the cylinder body through a bolt.
Further, the one-way adjustable fork-type hydraulic cylinder of rotation angle for electrohydraulic actuator of the foregoing, wherein: the inner end of the blocking column is provided with a buffer cushion.
The utility model has the advantages that: the shifting fork type swing hydraulic cylinder is internally provided with a blocking column, and the blocking column can shorten the reset stroke of the sliding block by blocking the piston in the oil cylinder, so that the reverse rotation angle of the swing hydraulic cylinder can be reduced; and the adjustable column capable of adjusting the inner and outer positions is arranged, so that the distance of the blocking column extending into the oil cylinder cavity can be adjusted, the angle adjustable range of the reverse rotation of the swing hydraulic cylinder is wider, and the swing hydraulic cylinder has a wider application range.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a shifting fork type hydraulic cylinder with unidirectionally adjustable rotation angle for an electro-hydraulic actuator.
Fig. 2 is a schematic structural view of a shifting fork type hydraulic cylinder with unidirectionally adjustable rotation angle for an electro-hydraulic actuator.
Detailed Description
The utility model is described in further detail below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1 and 2, a shift fork type hydraulic cylinder with unidirectionally adjustable rotation angle for an electro-hydraulic actuator includes: the box body 1 is internally provided with a rotating shaft 2 with a key hole, two shifting fork plates 3, a pin 4, a sliding block 5 and a guide rail 6, wherein the rotating shaft 2 is rotatably arranged in the box body 1, the key hole can be used for inserting a valve shaft, the rotating shaft 2 can control a valve by driving the valve shaft to rotate, the upper ends of the two shifting fork plates 3 are fixed with the rotating shaft 2, the two shifting fork plates 3 are arranged in a front-back alignment way, the sliding block 5 can be arranged on the guide rail 6 in a left-right sliding way, the sliding block 5 is positioned between the lower ends of the two shifting fork plates 3, the pin 4 is arranged on the sliding block 5 in a penetrating way, two ends of the pin 4 are respectively inserted into two strip holes on the two shifting fork plates 3, the sliding block 5 can drive the two shifting fork plates 3 to swing left and right simultaneously after sliding left and right through the pin 4, so that the rotating shaft 2 can be driven to rotate in a reciprocating way, an oil cylinder 7 is arranged on one end of the box body 1, the piston rod of the oil cylinder 7 extends into the box body 1 and is fixed with the sliding block 5, so that the oil cylinder 7 can drive the sliding block 5 to move left and right, a first oil way 14 is arranged on a cylinder cover 9 of the oil cylinder 7, the pressure oil can extend out of the piston rod of the oil cylinder 7 after being introduced into the oil cylinder 7 through the first oil way 14, the sliding block 5 can drive a rotating shaft 2 to rotate forwards through two shifting fork plates 3, the sliding block 5 can drive the rotating shaft 2 to rotate reversely through two shifting fork plates 3 after the piston rod of the oil cylinder 7 is retracted by reverse oil supply, a cylinder body 15 is arranged on the outer side of the cylinder cover 9, the cylinder cover 9 is welded and sealed on the inner end of the cylinder body 15, a cylinder cover 16 is sealed on the outer end of the cylinder body 15, a second oil way 17 is arranged on the cylinder cover 16, a sliding plug 18 is arranged in the cylinder body 15, the sliding plug 18 divides the inner cavity of the cylinder body 15 into two chambers, namely a first chamber 19 and a second chamber 20, the first chamber 19 is positioned at the inner side of the sliding plug 18, the second chamber 20 is positioned at the outer side of the sliding plug 18, the first oil way 14 is also communicated with the first chamber 19, the second oil way 17 is communicated with the second chamber 20, a blocking column 21 is arranged at the inner end of the sliding plug 18, a channel is arranged on the cylinder cover 9, the blocking column 21 penetrates through the channel, the blocking column 21 and the channel are sealed by adopting a sealing ring, pressure oil is introduced into the second chamber 20 through the second oil way 17, meanwhile, after the oil in the first chamber 19 is discharged through the first oil way 14, the sliding plug 18 can be driven by the pressure oil to abut against the cylinder cover 9, at the moment, the blocking column 21 can penetrate through the channel to be inserted into the chamber of the cylinder 7 under the driving of the sliding plug 18, so that the blocking column 21 can shorten the resetting stroke of the sliding block 5 by blocking the piston in the cylinder 7, and the reverse rotation angle of the rotating shaft 2 can be reduced; an adjusting column 22 is arranged on the cylinder cover 16 in a penetrating way, the adjusting column 22 is composed of a smooth section 221 and a threaded section 222, the smooth section 221 is located on the inner side of the threaded section 222, the inner end of the smooth section 221 stretches into the second cavity 20, the smooth section 221 and the cylinder cover 16 are sealed by adopting a sealing ring, the threaded section 222 is in threaded connection with the cylinder cover 16, a screwdriver groove for rotating the adjusting column 22 is arranged on the outer end face of the threaded section 222, a locking nut 23 is further in threaded connection with the threaded section 222, the locking nut 23 can tightly press the adjusting column 22 after being abutted against the cylinder cover 16, and the adjusting column 22 can be abutted when the sliding plug 18 is reset.
After the pressure oil is introduced into the first chamber 19 through the first oil passage 14 and the oil in the second chamber 20 is discharged through the second oil passage 17, the sliding plug 18 can be driven by the pressure oil to abut against the adjusting column 22, and the blocking column 21 can retract under the driving of the sliding plug 18, so that the reverse rotation angle of the rotating shaft 2 can be adjusted.
In the present embodiment, the first oil passages 14 on each cylinder head 9 are provided in two, and are respectively distributed on opposite sides of the cylinder head 9. The second oil passages 17 on each cylinder cap 16 are provided in two, and are respectively distributed on opposite sides of the cylinder cap 16. A further first oil line 14 and a further second oil line 17 are used for connecting to the pressure gauge so that the pressure in the chamber can be detected.
The cap 16 is bolted to the outer end of the barrel 15, which is provided for ease of maintenance. The inner end of the blocking column 21 is provided with a cushion pad capable of reducing vibration when the piston collides with the blocking column 21.
Claims (5)
1. A single direction adjustable shift fork formula pneumatic cylinder of rotation angle for electrohydraulic actuator includes: the box, be provided with a rotation axis, two shifting fork boards, a pin, a slider, a guide rail in the box, the rotatable installation of rotation axis is in the box, the keyhole can supply the valve shaft to insert, make the rotation axis can pass through the drive valve shaft rotation and control the valve, the upper end and the rotation axis of two shifting fork boards are fixed mutually, the alignment is arranged around two shifting fork boards, the slider can be left and right sliding installs on the guide rail, the slider is located between the lower extreme of two shifting fork boards, the pin wears to locate on the slider, and insert respectively in two rectangular holes on two shifting fork boards in the both ends of pin, can drive two boards through the pin and control the swing simultaneously after the slider slides, thereby can drive rotation axis reciprocating rotation, still be provided with an hydro-cylinder, the piston rod of hydro-cylinder stretches into in the box and is fixed mutually with the slider, make the hydro-cylinder can drive slider left and right movement, be provided with first oil circuit on the cylinder cap of hydro-cylinder, the pressure oil can make the shifting fork drive the slider through first oil circuit and can make after the shifting fork board stretch out through the first oil circuit, make the rotation axis of rotation through two pistons, the piston rod of the rotation axis that can be rotated backward, the rotation axis is characterized in that the rotation axis is rotated to the rotation axis is driven to the back to the rotation to the two to the opposite direction, the piston rod is rotated: the cylinder cover is welded and sealed on the inner end of the cylinder cover, the outer end of the cylinder cover is covered with a cylinder cover, a second oil way is arranged on the cylinder cover, a sliding plug is arranged in the cylinder body, the inner cavity of the cylinder body is divided into two chambers by the sliding plug, namely a first chamber and a second chamber, the first chamber is positioned at the inner side of the sliding plug, the second chamber is positioned at the outer side of the sliding plug, the first oil way is also communicated with the first chamber, the second oil way is communicated with the second chamber, a blocking column is arranged on the inner end of the sliding plug, a channel is arranged on the cylinder cover, the blocking column penetrates through the channel, the blocking column and the channel are sealed by adopting a sealing ring, pressure oil is introduced into the second chamber through the second oil way, and meanwhile, after the oil in the first chamber is discharged through the first oil way, the sliding plug can be driven by the pressure oil to abut against the cylinder cover, and at the moment, the blocking column can penetrate through the channel and be inserted into the chamber of the cylinder under the driving of the sliding plug, so that the blocking column can shorten the reset stroke of the sliding block in the cylinder, and the rotating shaft can be reduced in reverse rotation angle; the cylinder cover is penetrated with an adjusting column, the adjusting column consists of a smooth section and a thread section, the smooth section is positioned at the inner side of the thread section, the inner end of the smooth section stretches into the second cavity, the smooth section and the cylinder cover are sealed by adopting a sealing ring, the thread section is in threaded connection with the cylinder cover, the outer end face of the thread section is provided with a screw driver groove for rotating the adjusting column, the thread section is also in threaded connection with a locking nut, the locking nut and the cylinder cover are abutted together and then can tightly press the adjusting column, and the adjusting column can be abutted when the sliding plug is reset.
2. The unidirectional adjustable rotation angle shift fork type hydraulic cylinder for an electro-hydraulic actuator according to claim 1, wherein: the first oil way on each cylinder cover is provided with two oil ways and is respectively distributed on two opposite sides of the cylinder cover.
3. The unidirectional adjustable rotation angle shift fork type hydraulic cylinder for an electro-hydraulic actuator according to claim 1, wherein: the second oil way on each cylinder cover is provided with two oil ways and is respectively distributed on two opposite sides of the cylinder cover.
4. A single direction adjustable rotation angle shift fork hydraulic cylinder for electro-hydraulic actuators according to claim 1 or 2 or 3, wherein: the cylinder cover is locked on the outer end of the cylinder body through a bolt.
5. A single direction adjustable rotation angle shift fork hydraulic cylinder for electro-hydraulic actuators according to claim 1 or 2 or 3, wherein: the inner end of the blocking column is provided with a buffer cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321593628.8U CN219994033U (en) | 2023-06-21 | 2023-06-21 | Shifting fork type hydraulic cylinder with unidirectionally adjustable rotation angle for electrohydraulic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321593628.8U CN219994033U (en) | 2023-06-21 | 2023-06-21 | Shifting fork type hydraulic cylinder with unidirectionally adjustable rotation angle for electrohydraulic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219994033U true CN219994033U (en) | 2023-11-10 |
Family
ID=88608419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321593628.8U Active CN219994033U (en) | 2023-06-21 | 2023-06-21 | Shifting fork type hydraulic cylinder with unidirectionally adjustable rotation angle for electrohydraulic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219994033U (en) |
-
2023
- 2023-06-21 CN CN202321593628.8U patent/CN219994033U/en active Active
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