CN215596054U - Double-acting rotary oil cylinder - Google Patents
Double-acting rotary oil cylinder Download PDFInfo
- Publication number
- CN215596054U CN215596054U CN202121430554.7U CN202121430554U CN215596054U CN 215596054 U CN215596054 U CN 215596054U CN 202121430554 U CN202121430554 U CN 202121430554U CN 215596054 U CN215596054 U CN 215596054U
- Authority
- CN
- China
- Prior art keywords
- cavity
- shell
- liquid distribution
- communicated
- piston
- 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.)
- Active
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a double-acting rotary oil cylinder, which comprises: a housing; the two bearings are respectively embedded and arranged at the left end and the right end of the inner cavity of the shell; the left end cover is arranged on the left side of the shell through a bolt and limits a bearing outer ring of the bearing on the left side; the right end cover is fixedly arranged on the right side of the shell through a screw, and limits the bearing outer ring of the bearing on the right side; the driving mechanism is arranged in the middle of the inner cavity of the shell; the reversing mechanism is arranged at the bottom of the shell; and the coding disc is fixedly arranged on the right side of the shell and is used for detecting the driving mechanism. The double-acting rotary oil cylinder is far in rotary stroke, the reversing mechanism has a middle-position pressure relief function, can automatically complete reversing, can be directly connected with an oil pump, does not need to be driven by a complex hydraulic system, is simple to maintain, and has low requirements on operators.
Description
Technical Field
The utility model relates to the technical field of rotary oil cylinders, in particular to a double-acting rotary oil cylinder.
Background
The rotary oil cylinder can be divided into two structures, one structure is that the rotary oil cylinder with a through hole, namely the middle of the oil cylinder can pass through a workpiece, the oil cylinder can be matched with a hollow hydraulic chuck for installation and use, can process longer bars, can be matched with an automatic feeder for automatic feeding and processing, realizes automatic feeding and automatic processing, one operator can simultaneously operate a plurality of lathes, and the labor cost is reduced, the other structure is that a middle-real rotary oil cylinder, namely the oil cylinder does not have a through hole in the middle, can not pass through the bars, is matched with the middle-real hydraulic chuck for use, and is suitable for processing application scenes of short workpieces, the rotary oil cylinder is divided into a single-acting oil cylinder and a double-acting oil cylinder, the single-acting oil cylinder refers to the oil pressure realization of the motion in one direction, and depends on external forces such as dead weight or a spring when returning, only one end of two cavities of the oil cylinder has oil, the other end is in contact with air, and the double-acting oil cylinder refers to the two cavities both having oil, the actions in two directions are realized by oil pressure;
the existing rotary oil cylinder mostly adopts the technical scheme that hydraulic oil pushes a rotary piston to drive a main shaft to rotate, the stroke of the technical scheme is short, the machining requirement cannot be met, the existing rotary oil cylinder has no functions of reversing, pressure relief and the like, the existing rotary oil cylinder can be driven only by being matched with a complex hydraulic system pipeline during use, the size is too large, the maintenance is difficult, and the requirement on an operator is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-acting rotary oil cylinder, which at least solves the problems of short stroke and no reversing and pressure relief functions in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: a double acting rotary cylinder comprising: a housing; the two bearings are respectively embedded and arranged at the left end and the right end of the inner cavity of the shell; the left end cover is arranged on the left side of the shell through a bolt and limits a bearing outer ring of the bearing on the left side; the right end cover is fixedly arranged on the right side of the shell through a screw, and limits the bearing outer ring of the bearing on the right side; the driving mechanism is arranged in the middle of the inner cavity of the shell; the reversing mechanism is arranged at the bottom of the shell; the coding disc is fixedly arranged on the right side of the shell and is used for detecting the driving mechanism;
the reversing mechanism comprises: the mounting seat is fixedly mounted at the bottom of the shell; the liquid distribution cavity is arranged in the middle of the mounting seat; the piston assembly is slidably arranged on the inner wall of the liquid distribution cavity; the oil inlet pipe is arranged in the middle of the bottom of the mounting seat and communicated with the liquid distribution cavity; the oil outlet pipe is arranged on the left side of the bottom of the mounting seat and communicated with the liquid distribution cavity; the first connecting pipe is arranged on the left side of the top of the mounting seat and communicated with the liquid distribution cavity; the second connecting pipe is arranged on the right side of the top of the mounting seat and communicated with the liquid distribution cavity; the first electromagnet is fixedly arranged at the left end of the mounting seat; and the second electromagnet is fixedly arranged at the right end of the mounting seat.
Preferably, the drive mechanism includes: the two ends of the main shaft are fixedly arranged on the bearing inner rings of the two bearings; the stepped shaft is arranged in the middle of the main shaft, and the left end and the right end of the stepped shaft limit the inner rings of the two bearings; the column is arranged in the middle of the stepped shaft; the neck section is arranged in the middle of the inner cavity of the shell and is in contact with the outer wall of the main body; the driving grooves are arranged on the outer wall of the column body in the circumferential direction; the first connecting hole is formed in the left side of the bottom of the shell, the first connecting hole is communicated with the left end of the inner cavity of the shell, and the first connecting pipe is in adaptive splicing with the first connecting hole; the second connecting hole is formed in the right side of the bottom of the shell, the second connecting hole is communicated with the right end of the inner cavity of the shell, and the second connecting pipe is in adaptive insertion connection with the second connecting hole; the key groove is formed in the left end of the top of the main shaft.
Preferably, the liquid preparation chamber comprises: the liquid separation cavity is arranged in the middle of the mounting seat from left to right; the high-pressure cavity is formed in the middle of the liquid distribution cavity and communicated with the oil inlet pipe; the first connecting cavity is formed in the middle of the liquid distribution cavity, is positioned on the left side of the high-pressure cavity and is communicated with the first connecting pipe; the second connecting cavity is arranged in the middle of the liquid distribution cavity, is positioned on the right side of the high-pressure cavity and is communicated with the second connecting pipe; the backflow cavity is formed in the left end and the right end of the liquid separation cavity, and the backflow cavity positioned on the left side is communicated with the oil outlet pipe; and the communicating cavity is arranged at the rear end of the mounting seat, and the left end and the right end of the communicating cavity are respectively communicated with the two backflow cavities.
Preferably, the diameters of the high-pressure cavity, the first connecting cavity, the second connecting cavity and the backflow cavity are all larger than the diameter of the liquid dividing cavity.
Preferably, the piston assembly includes: the middle section piston is slidably arranged on the inner wall of the liquid distribution cavity; the two connecting rods are respectively arranged at the left end and the right end of the middle section piston; the first piston is slidably mounted on the inner wall of the liquid distribution cavity and fixedly connected with the connecting rod positioned on the left side; the second piston is slidably arranged on the inner wall of the liquid distribution cavity and is fixedly connected with the connecting rod on the right side; and the backflow channel is arranged on the left side and is arranged in the middle of the connecting rod, and the two ends of the backflow channel are respectively communicated with the outer wall of the middle section piston and the outer wall of the first piston.
Preferably, the width of the middle section piston is larger than that of the high pressure cavity.
Preferably, the length of the connecting rod is greater than the distance between the first connecting cavity and the high-pressure cavity.
Preferably, the inner cavities of the left end cover and the right end cover are provided with sealing rings.
Compared with the prior art, the utility model has the beneficial effects that: according to the double-acting rotary oil cylinder, when the first electromagnet and the second electromagnet do not work, the piston assembly is in the middle position of the liquid separating cavity, namely the middle position state of the reversing mechanism, high-pressure hydraulic oil enters the high-pressure cavity through the oil inlet pipe, the middle section piston seals the left end and the right end of the high-pressure cavity at the moment, the oil inlet pipe and the oil outlet pipe are directly connected through the backflow channel, the hydraulic oil directly flows back to an oil tank from the oil outlet pipe, and the main shaft does not work; the piston assembly is attracted to slide leftwards through the first electromagnet, namely the reversing mechanism is in a left position state, the middle section piston separates the first connecting cavity from the high pressure cavity, the second piston separates the second connecting cavity from the backflow cavity on the right side, therefore, after high-pressure hydraulic oil is injected into the high pressure cavity through the oil inlet pipe, the hydraulic oil is injected into the right end of the inner cavity of the shell through the second connecting cavity and the second connecting hole, the hydraulic oil flows in the inner cavity of the shell from right to left and pushes the driving groove, the cylinder drives the main shaft to rotate in the positive direction, and the applied hydraulic oil flows back to the first connecting cavity through the first connecting pipe at the left end of the inner cavity of the shell and flows back to the oil tank through the oil outlet pipe; the second electromagnet attracts the piston assembly to slide rightwards, namely the right state of the reversing mechanism, the middle section piston separates the second connecting cavity from the high pressure cavity, the first piston separates the first connecting cavity from the left backflow cavity, so that after high-pressure hydraulic oil is injected into the high pressure cavity through the oil inlet pipe, the hydraulic oil is injected into the left end of the inner cavity of the shell through the first connecting cavity and the first connecting hole, the hydraulic oil flows from left to right in the inner cavity of the shell and pushes the driving groove, the cylinder drives the main shaft to rotate in the opposite direction, the applied hydraulic oil flows back to the right backflow cavity through the second connecting pipe of the right inner cavity of the shell, flows back to the oil tank through the communicating cavity, and therefore, the reversing mechanism has a middle-position pressure relief function, can automatically complete reversing, can be directly connected with an oil pump, and does not need complicated hydraulic system driving, the maintenance is simple, and the requirement on operators is low.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front sectional view of the present invention;
FIG. 3 is a top cross-sectional view of the reversing mechanism;
FIG. 4 is a front sectional view of the reversing mechanism in a neutral position;
FIG. 5 is a front sectional view of the reversing mechanism in a left state;
FIG. 6 is a front sectional view of the reversing mechanism in a right state;
fig. 7 is a schematic view of the spindle structure.
In the figure: 2. the hydraulic oil supply device comprises a shell, 3, a driving mechanism, 31, a main shaft, 32, a stepped shaft, 33, a main body, 34, a neck section, 35, a driving groove, 36, a first connecting hole, 37, a second connecting hole, 38, a key groove, 4, a bearing, 5, a left end cover, 6, a right end cover, 7, a reversing mechanism, 71, a mounting seat, 72, a liquid distribution cavity, 721, a liquid distribution cavity, 722, a high pressure cavity, 723, a first connecting cavity, 724, a second connecting cavity, 725, a backflow cavity, 726, a communication cavity, 73, a piston assembly, 731, a connecting rod, 732, a middle section piston, 733, a first piston, 734, a second piston, 735, a backflow channel, 74, an oil inlet pipe, 75, an oil outlet pipe, 76, a first connecting pipe, 77, a second connecting pipe, 78, a first electromagnet, 79, a second electromagnet, 8 and an encoding disc.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a double acting rotary cylinder comprising: the device comprises a shell 2, a driving mechanism 3, a bearing 4, a left end cover 5, a right end cover 6, a reversing mechanism 7 and a coding disc 8, wherein the two bearings 4 are respectively embedded at the left end and the right end of an inner cavity of the shell 2, the left end cover 5 is installed at the left side of the shell 2 through bolts and limits the bearing outer ring of the bearing 4 at the left side, the right end cover 6 is fixedly installed at the right side of the shell 2 through bolts and limits the bearing outer ring of the bearing 4 at the right side, the driving mechanism 4 is arranged in the middle of the inner cavity of the shell 2, the reversing mechanism 7 is installed at the bottom of the shell 2, the coding disc 8 is fixedly installed at the right side of the shell 2 and detects the driving mechanism 4, the coding disc 8 is one type of an encoder and is a device for compiling signals or data and converting the signals into signal forms which can be used for communication, transmission and storage, and the encoder converts angular displacement or linear displacement into electric signals, for positioning the drive mechanism 3;
the reversing mechanism 7 includes: the oil pump comprises a mounting seat 71, a liquid distribution cavity 72, a piston assembly 73, an oil inlet pipe 74, an oil outlet pipe 75, a first connecting pipe 76, a second connecting pipe 77, a first electromagnet 78 and a second electromagnet 79, wherein the mounting seat 71 is fixedly mounted at the bottom of the shell 2, the liquid distribution cavity 72 is arranged in the middle of the mounting seat 71, the piston assembly 73 is slidably mounted on the inner wall of the liquid distribution cavity 72, the oil inlet pipe 74 is arranged in the middle of the bottom of the mounting seat 71 and is communicated with the liquid distribution cavity 72, in a specific implementation, the oil inlet pipe 74 is required to be connected with the output end of an oil pump, the oil outlet pipe 75 is arranged at the left side of the bottom of the mounting seat 71 and is communicated with the liquid distribution cavity 72, in a specific implementation, the oil outlet pipe 75 is required to be connected with an external oil tank, the first connecting pipe 76 is arranged at the left side of the top of the mounting seat 71 and is communicated with the liquid distribution cavity 72, the second connecting pipe 77 is arranged at the right side of the top of the mounting seat 71, and is communicated with the liquid distribution cavity 72, the first electromagnet 78 is fixedly arranged at the left end of the mounting seat 71, the second electromagnet 79 is fixedly arranged at the right end of the mounting seat 71, and the piston assembly 73 can be attracted to slide left and right after the first electromagnet 78 and the second electromagnet 79 are electrified.
Preferably, the driving mechanism 3 further includes: the main shaft 31, the stepped shaft 32, the main body 33, the neck section 34, the driving groove 35, the first connecting hole 36, the second connecting hole 37 and the key groove 38, two ends of the main shaft 31 are fixedly installed on the inner rings of the two bearings 4, the stepped shaft 32 is arranged in the middle of the main shaft 31, the left end and the right end of the stepped shaft 32 limit the inner rings of the two bearings 4, the column 33 is arranged in the middle of the stepped shaft 32, the neck section 34 is arranged in the middle of the inner cavity of the shell 2 and contacts with the outer wall of the main body 33, the number of the driving grooves 35 is several, the driving grooves are respectively arranged on the outer wall of the column 33 along the circumferential direction, the first connecting hole 36 is arranged on the left side of the bottom of the shell 2, the first connecting hole 36 is communicated with the left end of the inner cavity of the shell 2, the first connecting pipe 76 is in adaptive insertion connection with the first connecting hole 36, the second connecting hole 37 is arranged on the right side of the bottom of the shell 2, the second connecting hole 37 is communicated with the right end of the inner cavity of the shell 2, and the second connecting pipe 77 is inserted into the second connecting hole 37, the key groove 38 is opened at the left end of the top of the main shaft 31, and the key groove 38 is used for connecting with an external actuating mechanism.
Preferably, the liquid preparation chamber 72 further comprises: the liquid separating cavity 721, the high pressure cavity 722, the first connecting cavity 723, the second connecting cavity 724, the backflow cavity 725 and the communicating cavity 726, the liquid separating cavity 721 is arranged in the middle of the mounting seat 71 from left to right, the high pressure cavity 722 is arranged in the middle of the liquid separating cavity 721, and is communicated with the oil inlet pipe 74, the first connecting cavity 723 is opened in the middle of the liquid separating cavity 721, the first connecting cavity 723 is positioned on the left side of the high pressure cavity 722, and is communicated with the first connection pipe 76, a second connection chamber 724 is opened at the middle of the liquid-dividing chamber 721, the second connection chamber 724 is positioned at the right side of the high-pressure chamber 722, and is communicated with the second connecting pipe 77, the return cavities 725 are opened at the left and right ends of the liquid dividing cavity 721, and the return chamber 725 on the left side communicates with the oil outlet pipe 75, the communicating chamber 726 opens at the rear end of the mount 71, and the left and right ends of the communicating cavity 726 are respectively communicated with the two backflow cavities 725, and the communicating cavity 726 is used for ensuring that the two backflow cavities 725 are both connected with the oil tank.
Preferably, the diameters of the high pressure chamber 722, the first connecting chamber 723, the second connecting chamber 724 and the return chamber 725 are larger than the diameter of the liquid dividing chamber 721, so as to ensure the oil liquid circulation.
Preferably, the piston assembly 73 further comprises: the connecting rod 731, the middle section piston 732, the first piston 733 plug, the second piston 734 and the backflow channel 735, the middle section piston 732 is slidably mounted on the inner wall of the liquid distribution chamber 721, the number of the connecting rods 731 is two, the two connecting rods are respectively disposed at the left end and the right end of the middle section piston 732, the first piston 733 is slidably mounted on the inner wall of the liquid distribution chamber 721 and is fixedly connected with the connecting rod 731 positioned at the left side, the second piston 734 is slidably mounted on the inner wall of the liquid distribution chamber 721 and is fixedly connected with the connecting rod 731 positioned at the right side, the backflow channel 735 is disposed in the middle of the connecting rod 731 positioned at the left side, and the two ends are respectively communicated with the outer wall of the middle section piston 732 and the outer wall of the first piston 733, and the backflow channel 735 is used for directly connecting the oil inlet pipe 74 and the oil outlet pipe 75 when the piston assembly 73 reaches the middle position.
Preferably, the middle piston 731 has a width larger than that of the high-pressure chamber 722, so as to ensure that the middle piston 731 can close the left and right ends of the high-pressure chamber 722 when the piston assembly 73 moves to the middle position of the separating chamber 721.
Preferably, the length of the connecting rod 731 is greater than the distance between the first connecting cavity 723 and the high pressure cavity 722, so as to ensure that the high pressure cavity 722 can and can only communicate with one of the first connecting cavity 723 and the second connecting cavity 724.
Preferably, the inner cavities of the left end cover 5 and the right end cover 6 are both provided with a sealing ring, so that the sealing performance between the main shaft 31 and the left end cover 5 and the right end cover 6 is ensured.
The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.
Step one, when the first electromagnet 78 and the second electromagnet 79 do not work, the piston assembly 73 is in the middle position of the liquid separating cavity 721, namely the neutral position state of the reversing mechanism 7, high-pressure hydraulic oil enters the high-pressure cavity 722 through the oil inlet pipe 74, at the moment, the left end and the right end of the high-pressure cavity 722 are sealed by the middle-section piston 731, the oil inlet pipe 74 is directly connected with the oil outlet pipe 75 through the backflow channel 735, the hydraulic oil directly flows back to an oil tank from the oil outlet pipe 75, and the main shaft 31 does not work;
step two, when the first electromagnet 78 works, the first electromagnet 78 attracts the piston assembly 73 to slide leftward, that is, the reversing mechanism 7 is in a left position state, the middle-section piston 732 separates the first connecting cavity 723 from the high-pressure cavity 722, and the second piston 734 separates the second connecting cavity 724 from the return cavity 726 on the right side, so that after high-pressure hydraulic oil is injected into the high-pressure cavity 722 through the oil inlet pipe 74, hydraulic oil is injected into the right end of the inner cavity of the housing 2 through the second connecting cavity 724 and the second connecting hole 37, the hydraulic oil flows from right to left in the inner cavity of the housing 2 and pushes the driving groove 35, the cylinder 33 drives the main shaft 31 to rotate in the positive direction, and the working hydraulic oil flows back to the first connecting cavity 723 through the first connecting pipe 76 at the left end of the inner cavity of the housing 2 and flows back to the oil tank through the oil outlet pipe 75;
step three, when the second electromagnet 79 works, the second electromagnet 79 attracts the piston assembly 73 to slide rightward, that is, the reversing mechanism 7 is in a right position state, the middle-section piston 732 separates the second connecting cavity 724 from the high-pressure cavity 722, and the first piston 733 separates the first connecting cavity 723 from the left return cavity 726, so that after high-pressure hydraulic oil is injected into the high-pressure cavity 722 through the oil inlet pipe 74, hydraulic oil is injected into the left end of the inner cavity of the housing 2 through the first connecting cavity 723 and the first connecting hole 36, the hydraulic oil flows from left to right in the inner cavity of the housing 2 and pushes the driving groove 35, the cylinder 33 drives the main shaft 31 to rotate in the opposite direction, and the working hydraulic oil flows back to the right return cavity 725 through the second connecting pipe 77 of the right inner cavity of the housing 2, enters the left return cavity 725 through the communicating cavity 726, and flows back to the oil tank through the oil outlet pipe 75;
the reversing mechanism has a middle-position pressure relief function, can automatically complete reversing, can be directly connected with an oil pump, and does not need to be driven by a hydraulic system.
In the description of the present invention, it is to be understood that the terms "bottom", "one end", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated; unless otherwise specifically stated or limited, the terms "snap" and "connect" and "set" and "open" and "electrically connect" and "fixedly connect" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A double acting rotary cylinder comprising: shell (2), bearing (4), left end lid (5) and right-hand member lid (6), bearing (4) quantity is two, embedded installation in both ends about the inner chamber of shell (2) respectively, left end lid (5) through the bolt install in the left side of shell (2), and to being located the left the bearing inner race of bearing (4) carries on spacingly, right-hand member lid (6) are through screw fixed mounting in the right side of shell (2), and to being located the right side the bearing inner race of bearing (4) carries on spacingly, its characterized in that still includes:
the driving mechanism (4) is arranged in the middle of the inner cavity of the shell (2);
the reversing mechanism (7) is arranged at the bottom of the shell (2);
the coding disc (8) is fixedly arranged on the right side of the shell (2) and is used for detecting the driving mechanism (4);
the reversing mechanism (7) comprises:
the mounting seat (71) is fixedly mounted at the bottom of the shell (2);
the liquid distribution cavity (72) is arranged in the middle of the mounting seat (71);
a piston assembly (73) slidably mounted to an inner wall of the liquid dispensing chamber (72);
the oil inlet pipe (74) is arranged in the middle of the bottom of the mounting seat (71) and communicated with the liquid distribution cavity (72);
the oil outlet pipe (75) is arranged on the left side of the bottom of the mounting seat (71) and communicated with the liquid distribution cavity (72);
the first connecting pipe (76) is arranged on the left side of the top of the mounting seat (71) and communicated with the liquid distribution cavity (72);
the second connecting pipe (77) is arranged on the right side of the top of the mounting seat (71) and communicated with the liquid distribution cavity (72);
a first electromagnet (78) fixedly mounted at the left end of the mounting base (71);
and the second electromagnet (79) is fixedly arranged at the right end of the mounting seat (71).
2. A double acting swivel cylinder according to claim 1, wherein: the drive mechanism (3) comprises:
the two ends of the main shaft (31) are fixedly arranged on the inner rings of the two bearings (4);
the stepped shaft (32) is arranged in the middle of the main shaft (31), and the left end and the right end of the stepped shaft (32) limit the inner rings of the two bearings (4);
a column (33) provided in the middle of the stepped shaft (32);
a neck section (34) arranged in the middle of the inner cavity of the shell (2) and contacted with the outer wall of the main body (33);
the driving grooves (35) are arranged on the outer wall of the column body (33) in the circumferential direction;
the first connecting hole (36) is formed in the left side of the bottom of the shell (2), the first connecting hole (36) is communicated with the left end of the inner cavity of the shell (2), and the first connecting pipe (76) is in adaptive splicing with the first connecting hole (36);
the second connecting hole (37) is formed in the right side of the bottom of the shell (2), the second connecting hole (37) is communicated with the right end of the inner cavity of the shell (2), and the second connecting pipe (77) is in adaptive insertion connection with the second connecting hole (37);
and the key groove (38) is arranged at the left end of the top of the main shaft (31).
3. A double acting swivel cylinder according to claim 2, wherein: the liquid distribution chamber (72) comprises:
the liquid distribution cavity (721) is arranged in the middle of the mounting seat (71) from left to right;
the high-pressure cavity (722) is arranged in the middle of the liquid distribution cavity (721) and communicated with the oil inlet pipe (74);
the first connecting cavity (723) is formed in the middle of the liquid distribution cavity (721), and the first connecting cavity (723) is located on the left side of the high-pressure cavity (722) and communicated with the first connecting pipe (76);
the second connecting cavity (724) is formed in the middle of the liquid distribution cavity (721), and the second connecting cavity (724) is located on the right side of the high-pressure cavity (722) and communicated with the second connecting pipe (77);
the backflow cavity (725) is formed in the left end and the right end of the liquid distribution cavity (721), and the backflow cavity (725) located on the left side is communicated with the oil outlet pipe (75);
and the communication cavity (726) is arranged at the rear end of the mounting seat (71), and the left end and the right end of the communication cavity (726) are respectively communicated with the two backflow cavities (725).
4. A double acting swivel cylinder according to claim 3, wherein: the diameters of the high-pressure cavity (722), the first connecting cavity (723), the second connecting cavity (724) and the return cavity (725) are all larger than the diameter of the liquid distribution cavity (721).
5. A double acting swivel cylinder according to claim 3, wherein: the piston assembly (73) includes:
a middle piston (732) slidably mounted on the inner wall of the liquid distribution chamber (721);
two connecting rods (731) respectively arranged at the left end and the right end of the middle section piston (732);
the first piston (733) is slidably mounted on the inner wall of the liquid distribution chamber (721) and is fixedly connected with a connecting rod (731) positioned on the left side;
the second piston (734) is slidably arranged on the inner wall of the liquid distribution cavity (721) and is fixedly connected with the connecting rod (731) on the right side;
and the backflow channel (735) is arranged in the middle of the connecting rod (731) on the left side, and two ends of the backflow channel are communicated with the outer wall of the middle-section piston (732) and the outer wall of the first piston (733) respectively.
6. A double acting swivel cylinder according to claim 5, wherein: the width of the middle section piston (731) is greater than the width of the high pressure chamber (722).
7. A double acting swivel cylinder according to claim 5, wherein: the length of the connecting rod (731) is greater than the distance between the first connecting cavity (723) and the high pressure cavity (722).
8. A double acting swivel cylinder according to claim 1, wherein: and sealing rings are arranged in the inner cavities of the left end cover (5) and the right end cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121430554.7U CN215596054U (en) | 2021-06-26 | 2021-06-26 | Double-acting rotary oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121430554.7U CN215596054U (en) | 2021-06-26 | 2021-06-26 | Double-acting rotary oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215596054U true CN215596054U (en) | 2022-01-21 |
Family
ID=79876315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121430554.7U Active CN215596054U (en) | 2021-06-26 | 2021-06-26 | Double-acting rotary oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215596054U (en) |
-
2021
- 2021-06-26 CN CN202121430554.7U patent/CN215596054U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105443498B (en) | It is a kind of that there is flexible and oscillating function Integral hydraulic cylinder and its application | |
| CN113669318B (en) | Hydraulic device with hydraulic control check valve flow distribution radial plunger controlled by rotating shaft | |
| CN215596054U (en) | Double-acting rotary oil cylinder | |
| CN110410379B (en) | Hydraulic cylinder | |
| CN201007295Y (en) | Wet-type electromagnetic direction changing valve | |
| CN211116894U (en) | Heavy-load rack swing oil cylinder | |
| CN110454460B (en) | Quick oil cylinder with pressurization function | |
| CN2627237Y (en) | Piston type hydraulic pump | |
| CN215214868U (en) | Flow control valve | |
| CN209671309U (en) | A kind of two-way pressure maintaining angling cylinder | |
| CN110253323B (en) | Hydraulic tool changing system of machining center and tool changing method thereof | |
| CN112128458A (en) | Spring piston type closed system and switch type electro-hydraulic actuating mechanism driven by energy accumulator | |
| CN202579460U (en) | Hydraulic emergency operation module | |
| CN111365208A (en) | Permanent magnet synchronous motor directly-driven oblique shaft type axial plunger pump | |
| CN112682377B (en) | Valve core, axial flow type regulating valve and axial flow type regulating valve system | |
| CN212899880U (en) | Hydraulic valve | |
| CN214196816U (en) | Electric hydraulic cylinder | |
| CN216666085U (en) | Long-life servo hydraulic oil cylinder | |
| CN214007658U (en) | Novel floating oil circuit transition structure and hydraulic system | |
| CN111022280B (en) | High-pressure water pump | |
| CN219345130U (en) | Electrohydraulic actuator | |
| CN212868088U (en) | Long-stroke plunger hydraulic cylinder | |
| CN212985678U (en) | Hydraulic cylinder with locking function | |
| CN216046800U (en) | Intelligent grease distributor | |
| CN214998060U (en) | Hydraulic grouting pump for underground coal mine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |