CN205446262U - Two effect two -stage pneumatic cylinders - Google Patents

Two effect two -stage pneumatic cylinders Download PDF

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Publication number
CN205446262U
CN205446262U CN201620258398.3U CN201620258398U CN205446262U CN 205446262 U CN205446262 U CN 205446262U CN 201620258398 U CN201620258398 U CN 201620258398U CN 205446262 U CN205446262 U CN 205446262U
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CN
China
Prior art keywords
cylinder
piston rod
ring
oil pocket
level
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Active
Application number
CN201620258398.3U
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Chinese (zh)
Inventor
刘红雷
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JIANGYIN HONGTENG MACHINERY CO Ltd
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JIANGYIN HONGTENG MACHINERY CO Ltd
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Priority to CN201620258398.3U priority Critical patent/CN205446262U/en
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Abstract

The utility model relates to a two effect two -stage pneumatic cylinders, including piston rod, first dust ring, first ripper ring, sealing washer, spacing calorie of key of first supporting, second dust ring, second ripper ring, sealing washer, second supporting spacing calorie of key, one -level cylinder, second grade cylinder, cylinder bottom and steel wire retainer ring for the secondary shaft for the primary shaft, characterized by is equipped with one and leads to oily cavity in the lateral wall of second grade cylinder, be equipped with the third cavity between second grade cylinder and piston rod, be equipped with the third through -hole on the lateral wall of second grade cylinder, the second oil pocket passes through third through -hole intercommunication with logical oily cavity. The utility model has the advantages of the ability convenience is retract the piston rod to in the second grade cylinder.

Description

A kind of double acting two-stage hydraulic cylinder
Technical field
This utility model relates to a kind of hydraulic cylinder, particularly with regard to a kind of double acting two-stage hydraulic cylinder.
Background technology
Current double acting two-stage hydraulic cylinder, including piston rod, the first dust ring, the first support ring, the first axle sealing ring, the first spacing card key of supporting, the second dust ring, the second support ring, the second axle sealing ring, the second spacing card key of supporting, one-level cylinder barrel, secondary cylinder cylinder, cylinder bottom and elastic spring;Secondary cylinder cylinder is arranged in one-level cylinder barrel, is sequentially provided with the first dust ring, the first support ring, the first axle sealing ring and first from outside to inside and supports spacing card key, be provided with a cylinder bottom at first-stage cylinder tube rear end between one-level cylinder barrel front end and secondary cylinder cylinder;Piston rod one end is inserted in secondary cylinder cylinder from secondary cylinder cylinder front end, is sequentially provided with the second dust ring, the second support ring, the second axle sealing ring and second from outside to inside and supports spacing card key between secondary cylinder cylinder front end and piston rod;Piston rod, secondary cylinder cylinder and cylinder bottom surround the first oil pocket in one-level cylinder barrel, form the second oil pocket between secondary cylinder cylinder and one-level inner wall of cylinder;One-level cylinder barrel is respectively equipped with first oilhole communicated with the first oil pocket and second oilhole communicated with the second oil pocket, the medial wall of secondary cylinder cylinder is provided with fourth hole, 3rd oil pocket is connected by fourth hole with logical oil cavity, being provided with a groove on secondary cylinder tube rear end mouth medial wall, elastic spring is arranged in a groove;During its work, when stretching out piston rod, first passing through the first oilhole to the first oil pocket input hydraulic pressure oil so that piston rod and secondary cylinder cylinder synchronize to stretch out, the stop motion when secondary cylinder cylinder reaches stroke end, piston rod continues to stretch out and arrive stroke eventually;And by the second oilhole to the second oil pocket input hydraulic pressure oil, piston rod and secondary cylinder cylinder is made to synchronize retraction, the stop motion when secondary cylinder cylinder reaches stroke end, but need in the presence of piston rod has outer carrying force when wanting piston rod to be retracted in secondary cylinder cylinder, piston rod could be retracted, if be zero load on the piston rod, just it is difficult to be retracted into by piston rod in secondary cylinder cylinder, thus makes double acting two-stage hydraulic cylinder in use bring a lot of inconvenience.
Summary of the invention
For above-mentioned shortcoming, the purpose of this utility model is to provide a kind of double acting two-stage hydraulic cylinder that can facilitate and be retracted into by piston rod in secondary cylinder cylinder.
Technology contents of the present utility model is, a kind of double acting two-stage hydraulic cylinder, including piston rod, the first dust ring, the first support ring, the first axle sealing ring, the first spacing card key of supporting, the second dust ring, the second support ring, the second axle sealing ring, the second spacing card key of supporting, one-level cylinder barrel, secondary cylinder cylinder, cylinder bottom and elastic spring;Secondary cylinder cylinder is arranged in one-level cylinder barrel, is sequentially provided with the first dust ring, the first support ring, the first axle sealing ring and first from outside to inside and supports spacing card key, be provided with a cylinder bottom at first-stage cylinder tube rear end between one-level cylinder barrel front end and secondary cylinder cylinder;Piston rod one end is inserted in secondary cylinder cylinder from secondary cylinder cylinder front end, is sequentially provided with the second dust ring, the second support ring, the second axle sealing ring and second from outside to inside and supports spacing card key between secondary cylinder cylinder front end and piston rod;Piston rod, secondary cylinder cylinder and cylinder bottom surround the first oil pocket in one-level cylinder barrel, form the second oil pocket between secondary cylinder cylinder and one-level inner wall of cylinder;One-level cylinder barrel is respectively equipped with first oilhole communicated with the first oil pocket and second oilhole communicated with the second oil pocket, the medial wall of secondary cylinder cylinder is provided with fourth hole, 3rd oil pocket is connected by fourth hole with logical oil cavity, being provided with a groove on secondary cylinder tube rear end mouth medial wall, elastic spring is arranged in a groove;It is characterized in that in the sidewall of secondary cylinder cylinder, be provided with a logical oil cavity, between secondary cylinder cylinder and piston rod, be provided with the 3rd cavity;Being provided with third through-hole on the lateral wall of secondary cylinder cylinder, the second oil pocket is connected by third through-hole with logical oil cavity.
This utility model compared with prior art have the advantage that is, this utility model has convenience and is retracted in secondary cylinder cylinder by piston rod, and its processing technique is simple simultaneously, saves material and reduces cost reliability height.
Accompanying drawing explanation
Fig. 1 is the structural representation of utility model.
Detailed description of the invention
As shown in Figure 1, a kind of double acting two-stage hydraulic cylinder, piston rod the 1, first dust ring the 2, first support ring the 3, first axle sealing ring 4, first supports spacing card key the 5, second dust ring the 6, second support ring the 7, second axle sealing ring 8, second and supports spacing card key 9, one-level cylinder barrel 10, secondary cylinder cylinder 11, cylinder bottom 12 and elastic spring 16;Secondary cylinder cylinder 11 is arranged in one-level cylinder barrel 10, between one-level cylinder barrel 10 front end and secondary cylinder cylinder 11, it is sequentially provided with first dust ring the 2, first support ring the 3, first axle sealing ring 4 and first from outside to inside supports spacing card key 5, be provided with a cylinder bottom 12 in one-level cylinder barrel 10 rear end;Piston rod 1 one end is inserted in secondary cylinder cylinder 11 from secondary cylinder cylinder 11 front end, is sequentially provided with second dust ring the 6, second support ring the 7, second axle sealing ring 8 and second from outside to inside and supports spacing card key 9 between secondary cylinder cylinder 11 front end and piston rod 1;Piston rod 1, secondary cylinder cylinder 11 and cylinder bottom 12 surround the first oil pocket 13 in one-level cylinder barrel 1, form the second oil pocket 14 between secondary cylinder cylinder 11 and one-level cylinder barrel 10 inwall;Being respectively equipped with first oilhole 10.1 and second oilhole 10.2 communicated with the second oil pocket 14 communicated with the first oil pocket 13 on one-level cylinder barrel 10, be provided with a groove 11.4 on secondary cylinder cylinder 11 rear port medial wall, elastic spring 16 is arranged in groove 11.4;It is characterized in that in the sidewall of secondary cylinder cylinder 11, be provided with a logical oil cavity 11.1, between secondary cylinder cylinder 11 and piston rod 1, be provided with the 3rd cavity 15;The lateral wall of secondary cylinder cylinder 11 is provided with third through-hole 11.2, second oil pocket 14 is connected by third through-hole 11.2 with logical oil cavity 11.1, being provided with fourth hole 11.3 on the medial wall of secondary cylinder cylinder 11, the 3rd oil pocket 15 is connected by fourth hole 11.3 with logical oil cavity 11.1.
Operation principle of the present utility model is, when stretching out piston rod 1, first pass through the first oilhole 10.1 to the first oil pocket 13 input hydraulic pressure oil so that piston rod 1 and secondary cylinder cylinder 11 synchronize to stretch out, the stop motion when secondary cylinder cylinder 11 reaches stroke end, piston rod 1 continues to stretch out and arrive stroke eventually;And by the second oilhole 10.2 to the second oil pocket 14 input hydraulic pressure oil, hydraulic oil enters the 3rd cavity 15 through third through-hole 11.2, logical oil cavity 11.1 and fourth hole 11.3 the most successively from the second oil pocket 14 thus promotes piston rod 1 to retract to secondary cylinder cylinder 11, stop motion during stroke end is reached when piston rod 1 retracts at elastic spring 16, now hydraulic oil promotes secondary cylinder cylinder 11 to continue retracting motion from the second oil pocket 14, reaches stop motion during stroke end.

Claims (1)

1. a double acting two-stage hydraulic cylinder, including piston rod, the first dust ring, the first support ring, the first axle sealing ring, the first spacing card key of supporting, the second dust ring, the second support ring, the second axle sealing ring, the second spacing card key of supporting, one-level cylinder barrel, secondary cylinder cylinder, cylinder bottom and elastic spring;Secondary cylinder cylinder is arranged in one-level cylinder barrel, is sequentially provided with the first dust ring, the first support ring, the first axle sealing ring and first from outside to inside and supports spacing card key, be provided with a cylinder bottom at first-stage cylinder tube rear end between one-level cylinder barrel front end and secondary cylinder cylinder;Piston rod one end is inserted in secondary cylinder cylinder from secondary cylinder cylinder front end, is sequentially provided with the second dust ring, the second support ring, the second axle sealing ring and second from outside to inside and supports spacing card key between secondary cylinder cylinder front end and piston rod;Piston rod, secondary cylinder cylinder and cylinder bottom surround the first oil pocket in one-level cylinder barrel, form the second oil pocket between secondary cylinder cylinder and one-level inner wall of cylinder;One-level cylinder barrel is respectively equipped with first oilhole communicated with the first oil pocket and second oilhole communicated with the second oil pocket, the medial wall of secondary cylinder cylinder is provided with fourth hole, 3rd oil pocket is connected by fourth hole with logical oil cavity, being provided with a groove on secondary cylinder tube rear end mouth medial wall, elastic spring is arranged in a groove;It is characterized in that in the sidewall of secondary cylinder cylinder, be provided with a logical oil cavity, between secondary cylinder cylinder and piston rod, be provided with the 3rd cavity;Being provided with third through-hole on the lateral wall of secondary cylinder cylinder, the second oil pocket is connected by third through-hole with logical oil cavity.
CN201620258398.3U 2016-03-31 2016-03-31 Two effect two -stage pneumatic cylinders Active CN205446262U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620258398.3U CN205446262U (en) 2016-03-31 2016-03-31 Two effect two -stage pneumatic cylinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620258398.3U CN205446262U (en) 2016-03-31 2016-03-31 Two effect two -stage pneumatic cylinders

Publications (1)

Publication Number Publication Date
CN205446262U true CN205446262U (en) 2016-08-10

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CN201620258398.3U Active CN205446262U (en) 2016-03-31 2016-03-31 Two effect two -stage pneumatic cylinders

Country Status (1)

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CN (1) CN205446262U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105650059A (en) * 2016-03-31 2016-06-08 江阴市洪腾机械有限公司 Double-acting two-stage hydraulic cylinder
CN106969002A (en) * 2017-04-10 2017-07-21 湖北工业大学 Two-stage double-act-ing hydraulic J-Horner
CN108217025A (en) * 2018-01-03 2018-06-29 遂宁市东乘车辆有限公司 It is a kind of can vertical discharging hook arm lifting mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105650059A (en) * 2016-03-31 2016-06-08 江阴市洪腾机械有限公司 Double-acting two-stage hydraulic cylinder
CN106969002A (en) * 2017-04-10 2017-07-21 湖北工业大学 Two-stage double-act-ing hydraulic J-Horner
CN108217025A (en) * 2018-01-03 2018-06-29 遂宁市东乘车辆有限公司 It is a kind of can vertical discharging hook arm lifting mechanism

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