CN205559405U - Oscillating hydraulic actuator - Google Patents

Oscillating hydraulic actuator Download PDF

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Publication number
CN205559405U
CN205559405U CN201620340246.8U CN201620340246U CN205559405U CN 205559405 U CN205559405 U CN 205559405U CN 201620340246 U CN201620340246 U CN 201620340246U CN 205559405 U CN205559405 U CN 205559405U
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CN
China
Prior art keywords
piston
cylinder body
output shaft
cylinder
spline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620340246.8U
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Chinese (zh)
Inventor
尹建敏
王焕彩
黄政洲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHENGZHOU VALVE MANUFACTURING Co Ltd
Original Assignee
ZHENGZHOU VALVE MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHENGZHOU VALVE MANUFACTURING Co Ltd filed Critical ZHENGZHOU VALVE MANUFACTURING Co Ltd
Priority to CN201620340246.8U priority Critical patent/CN205559405U/en
Application granted granted Critical
Publication of CN205559405U publication Critical patent/CN205559405U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an oscillating hydraulic actuator, including cylinder body, output shaft, be equipped with the inner chamber in the cylinder body, output shaft one end lies in the intracavity, and the other end extends to the cylinder body and forms the output outward, output shaft and cylinder body normal running fit, interior intracavity still is equipped with the piston, the piston bush is established on the output shaft, the output shaft is equipped with first external screw thread outward, it is equipped with the screw -thread fit that first internal thread formed piston and output shaft to correspond first external screw thread position on the piston inner circle face, be equipped with the sealed dish that is used for with the inner chamber inner wall is sealed on the piston, cavity and back cavity before sealed dish is separated the inner chamber become, be equipped with first delivery port on the cylinder body, the second delivery port, first delivery port switches on with preceding cavity, the second delivery port switches on with the back cavity, still be equipped with between piston and the cylinder body and be used for restricting piston pivoted limit structure. The present invention uses the technical scheme, the utility model provides an oscillating hydraulic actuator, its simple structure, small, the bearing capacity is big, can drive the rotatory acting of load well.

Description

A kind of swing type hydraulic executor
Technical field
This utility model relates to a kind of swing type hydraulic executor.
Background technology
At present, conventional on market hydraulic actuator has rack type transmission, fork type transmission, three kinds of structures of rocker-arm transmission executor.But, the executor of these structures exists that volume is big, structure is complicated, degree of protection is low, carry the shortcomings such as little.
Summary of the invention
The purpose of this utility model: in order to overcome the defect of prior art, this utility model provides a kind of swing type hydraulic executor, and its simple in construction, volume are little, bearing capacity is big, band dynamic load can rotate acting well.
nullThe technical solution of the utility model: a kind of swing type hydraulic executor,It is characterized in that: include cylinder body、Output shaft,Inner chamber it is provided with in cylinder body,Output shaft one end is positioned at intracavity,The other end extends to be formed outside cylinder body outfan,Described output shaft is rotatably assorted with cylinder body,Described interior intracavity is additionally provided with piston,Piston bush is located on output shaft,Output shaft is externally provided with the first external screw thread,On piston inner ring face, corresponding first external screw thread position is provided with the first female thread and becomes the threaded engagement of piston and output shaft,Piston is provided with for the seal disc with inner chamber inner wall sealing,Inner chamber is separated into front cavity and rear chamber by seal disc,Described cylinder body is provided with the first delivery port、Second delivery port,First delivery port turns on front cavity,Second delivery port turns on rear chamber,The position limiting structure for limiting piston rotation it is additionally provided with between piston and cylinder body.
Use technique scheme, hydraulic oil inputs from the first delivery port or the second delivery port, promote piston along output shaft axially-movable, due to piston and output shaft threaded engagement, position limiting structure limits again piston rotation, so that output shaft forward, counter-rotating belts dynamic load swing acting, the hydraulic actuator of this structure, its simple in construction, volume are little, bearing capacity is big, band dynamic load can rotate acting well.
Further setting of the present utility model: described position limiting structure includes the second female thread arranged on interior cavity wall, the lateral wall of piston is provided with the second external screw thread matched with the second female thread and forms the threaded engagement of piston and interior cavity wall, and the second external screw thread on piston is oppositely oriented with the first external screw thread on output shaft.
Using above-mentioned further setting, this position limiting structure, during so that piston is along output shaft axially-movable equidistance, the angle of output shaft rotation is bigger, and the number of turns is more.
Further setting of the present utility model: described position limiting structure includes the spline or spline arranged on piston lateral wall, the spline being correspondingly arranged on the inwall of inner chamber or spline, the spline on piston lateral wall is plugged in the spline spline on interior cavity wall Nei or on interior cavity wall and is plugged in the spline on piston lateral wall.
Use above-mentioned further setting, if arranging spline on piston lateral wall, then, the inwall of inner chamber is correspondingly arranged spline, and spline can limit piston rotation in inserting spline;If piston arranges spline on lateral wall, then, the inwall of inner chamber is correspondingly arranged spline, and spline also can limit piston rotation in inserting spline, this position limiting structure, and simple in construction is easy to process.
The most further setting of the present utility model: described output shaft is provided with bearing between one end and cylinder body of interior intracavity.
Using and above-mentioned the most further arrange so that the rotation of output shaft is more smooth and easy, bearing capacity is strong, simple in construction.
The most further setting of the present utility model: described cylinder body includes the cylinder body body of split setting, cylinder head, cylinder cap, cylinder body body is arranged between cylinder head and cylinder cap, output shaft one end extends to outside cylinder body through cylinder head, the other end extends on cylinder cap through cylinder body body, and described bearing is arranged on cylinder cap.
Use and above-mentioned the most further arrange, internal piston, output shaft, the installation of bearing, dismounting, simple in construction can be facilitated.
The most further setting of the present utility model: be equipped with sealing ring between described cylinder body and cylinder head, between cylinder body and cylinder cap and between output shaft and cylinder head.
Use and above-mentioned the most further arrange, the sealing ring of setting, it is possible to prevent medium to leak between cylinder body and cylinder head, between cylinder body and cylinder cap and between output shaft and cylinder head.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model specific embodiment 1;
Fig. 2 is the structural representation of this utility model specific embodiment 2.
Detailed description of the invention
Embodiment 1:
nullAs shown in Figure 1,A kind of swing type hydraulic executor,Include cylinder body 1、Output shaft 2,Described cylinder body 1 includes the cylinder body body 11 that split is arranged、Cylinder head 12、Cylinder cap 13,Cylinder body body 11 is arranged between cylinder head 12 and cylinder cap 13,Output shaft 2 one end extends to outside cylinder body 1 through cylinder head 12,The other end extends on cylinder cap 13 through cylinder body body 11,Cylinder body body 11、Cylinder head 12、Inner chamber 3 is surrounded between cylinder cap 13,It is provided with bearing 8 between output shaft 2 and cylinder cap 13 and forms being rotatably assorted of output shaft 2 and cylinder body 1,It is additionally provided with piston 4 in described inner chamber 3,Piston 4 is set on output shaft 2,Output shaft 2 is externally provided with the first external screw thread 21,On piston 4 inner ring face, corresponding first external screw thread 21 position is provided with the first female thread 41 and forms the threaded engagement of piston 4 and output shaft 2,Piston 4 is provided with for the seal disc 5 with inner chamber 3 inner wall sealing,Seal disc 5 is provided with seal groove 51,Sealing ring 6 it is provided with in seal groove 51,Inner chamber 3 is separated into front cavity 31 and rear chamber 32 by seal disc 5,Described cylinder body 1 is provided with the first delivery port 111、Second delivery port 112,First delivery port 111 turns on front cavity 31,Second delivery port 112 turns on rear chamber 32,It is additionally provided with between piston 4 and cylinder body 1 for limiting the position limiting structure that piston 4 rotates,Described position limiting structure includes the second female thread 33 arranged on inner chamber 3 inwall,The lateral wall of piston 4 is provided with the second external screw thread 42 matched with the second female thread 33 and forms the threaded engagement of piston 4 and inner chamber 3 inwall,The second external screw thread 42 on piston 4 is oppositely oriented with the first external screw thread 21 on output shaft 2.
In this utility model specific embodiment, it is equipped with sealing ring 7 between described cylinder body 1 and cylinder head 12, between cylinder body 1 and cylinder cap 13 and between output shaft 2 and cylinder head 12, the sealing ring 7 arranged, is possible to prevent medium to leak between cylinder body 1 and cylinder head 12, between cylinder body 1 and cylinder cap 13 and between output shaft 2 and cylinder head 12.
During work, hydraulic oil inputs from the first delivery port 111 or the second delivery port 112, promote piston 4 along output shaft 2 axially-movable, due to piston 4 and output shaft 2 threaded engagement, position limiting structure limits again piston 4 and rotates, so that output shaft 2 forward, counter-rotating belts dynamic load rotation acting, the hydraulic actuator of this structure, its simple in construction, volume are little, bearing capacity is big, band dynamic load can rotate acting well.And, this position limiting structure, during so that piston 4 is along output shaft 2 axially-movable equidistance, the angle that output shaft 2 rotates is bigger, and the number of turns is more.
Embodiment 2:
nullAs shown in Figure 2,A kind of swing type hydraulic executor,Include cylinder body 1 '、Output shaft 2 ',Described cylinder body 1 ' includes the cylinder body body 11 ' that split is arranged、Cylinder head 12 '、Cylinder cap 13 ',Cylinder body body 11 ' is arranged between cylinder head 12 ' and cylinder cap 13 ',Output shaft 2 ' one end extends to cylinder body 1 ' outward through cylinder head 12 ',The other end extends on cylinder cap 13 ' through cylinder body body 11 ',Cylinder body body 11 '、Cylinder head 12 '、Inner chamber 3 ' is surrounded between cylinder cap 13 ',It is provided with bearing 8 ' between output shaft 2 ' and cylinder cap 13 ' and forms being rotatably assorted of output shaft 2 ' and cylinder body 1 ',It is additionally provided with piston 4 ' in described inner chamber 3 ',Piston 4 ' is set on output shaft 2 ',Output shaft 2 ' is externally provided with the first external screw thread 21 ',On piston 4 ' inner ring face, corresponding first external screw thread 21 ' position is provided with the first female thread 41 ' and forms the threaded engagement of piston 4 ' and output shaft 2 ',Piston 4 ' is provided with for the seal disc 5 ' with inner chamber 3 ' inner wall sealing,Seal disc 5 ' is provided with seal groove 51 ',Sealing ring 6 ' it is provided with in seal groove 51 ',Inner chamber 3 ' is separated into front cavity 31 ' and rear chamber 32 ' by seal disc 5 ',Described cylinder body 1 ' is provided with the first delivery port 111 '、Second delivery port 112 ',First delivery port 111 ' turns on front cavity 31 ',Second delivery port 112 ' turns on rear chamber 32 ',It is additionally provided with between piston 4 ' and cylinder body 1 ' for limiting the position limiting structure that piston 4 ' rotates,Described position limiting structure includes the spline 42 ' arranged on piston 4 ' lateral wall,The spline 33 ' being correspondingly arranged on the inwall of inner chamber 3 ',In the spline 33 ' that spline 42 ' on piston 4 ' lateral wall is plugged on inner chamber 3 ' inwall.
In this utility model specific embodiment, it is equipped with sealing ring 7 ' between described cylinder body 1 ' and cylinder head 12 ', between cylinder body 1 ' and cylinder cap 13 ' and between output shaft 2 ' and cylinder head 12 ', the sealing ring 7 ' arranged, is possible to prevent medium to leak between cylinder body 1 ' and cylinder head 12 ', between cylinder body 1 ' and cylinder cap 13 ' and between output shaft 2 ' and cylinder head 12 '.
During work, hydraulic oil inputs from the first delivery port 111 ' or the second delivery port 112 ', promote piston 4 ' along output shaft 2 ' axially-movable, due to piston 4 ' and output shaft 2 ' threaded engagement, position limiting structure limits again piston 4 ' and rotates, so that output shaft 2 ' forward, counter-rotating belts dynamic load rotation acting, the hydraulic actuator of this structure, its simple in construction, volume are little, bearing capacity is big, band dynamic load can rotate acting well.

Claims (6)

1. a swing type hydraulic executor, it is characterized in that: include cylinder body, output shaft, inner chamber it is provided with in cylinder body, output shaft one end is positioned at intracavity, the other end extends to be formed outside cylinder body outfan, described output shaft is rotatably assorted with cylinder body, described interior intracavity is additionally provided with piston, piston bush is located on output shaft, output shaft is externally provided with the first external screw thread, on piston inner ring face, corresponding first external screw thread position is provided with the first female thread and becomes the threaded engagement of piston and output shaft, piston is provided with for the seal disc with inner chamber inner wall sealing, inner chamber is separated into front cavity and rear chamber by seal disc, described cylinder body is provided with the first delivery port, second delivery port, first delivery port turns on front cavity, second delivery port turns on rear chamber, the position limiting structure for limiting piston rotation it is additionally provided with between piston and cylinder body.
Swing type hydraulic executor the most according to claim 1, it is characterized in that: described position limiting structure includes the second female thread arranged on interior cavity wall, the lateral wall of piston is provided with the second external screw thread matched with the second female thread and forms the threaded engagement of piston and interior cavity wall, and the second external screw thread on piston is oppositely oriented with the first external screw thread on output shaft.
Swing type hydraulic executor the most according to claim 1, it is characterized in that: described position limiting structure includes the spline or spline arranged on piston lateral wall, the spline being correspondingly arranged on the inwall of inner chamber or spline, the spline on piston lateral wall is plugged in the spline spline on interior cavity wall Nei or on interior cavity wall and is plugged in the spline on piston lateral wall.
4. according to the swing type hydraulic executor described in claim 1 or 2 or 3, it is characterised in that: described output shaft is provided with bearing between one end and cylinder body of interior intracavity.
Swing type hydraulic executor the most according to claim 4, it is characterized in that: described cylinder body includes the cylinder body body of split setting, cylinder head, cylinder cap, cylinder body body is arranged between cylinder head and cylinder cap, output shaft one end extends to outside cylinder body through cylinder head, the other end extends on cylinder cap through cylinder body body, and described bearing is arranged on cylinder cap.
Swing type hydraulic executor the most according to claim 5, it is characterised in that: it is equipped with sealing ring between described cylinder body and cylinder head, between cylinder body and cylinder cap and between output shaft and cylinder head.
CN201620340246.8U 2016-04-20 2016-04-20 Oscillating hydraulic actuator Expired - Fee Related CN205559405U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620340246.8U CN205559405U (en) 2016-04-20 2016-04-20 Oscillating hydraulic actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620340246.8U CN205559405U (en) 2016-04-20 2016-04-20 Oscillating hydraulic actuator

Publications (1)

Publication Number Publication Date
CN205559405U true CN205559405U (en) 2016-09-07

Family

ID=56809919

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620340246.8U Expired - Fee Related CN205559405U (en) 2016-04-20 2016-04-20 Oscillating hydraulic actuator

Country Status (1)

Country Link
CN (1) CN205559405U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110005654A (en) * 2019-05-06 2019-07-12 李纪友 Power output device and equipment
WO2022096920A1 (en) * 2020-11-06 2022-05-12 Mohsen Karimi Hydraulic and pneumatic rotatory actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110005654A (en) * 2019-05-06 2019-07-12 李纪友 Power output device and equipment
WO2022096920A1 (en) * 2020-11-06 2022-05-12 Mohsen Karimi Hydraulic and pneumatic rotatory actuator

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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: 20160907

Termination date: 20190420