CN217207089U

CN217207089U - Swing hydro-cylinder with adjustable corner

Info

Publication number: CN217207089U
Application number: CN202220866706.6U
Authority: CN
Inventors: 王宏义; 刘俊丰; 于华忠; 王志江
Original assignee: Weihai Kaite Hydraulic Technology Co ltd
Current assignee: Weihai Kaite Hydraulic Technology Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-16
Anticipated expiration: 2032-04-15

Abstract

The utility model relates to the technical field of hydraulic cylinders, in particular to a swing oil cylinder with adjustable rotation angle, which can more conveniently adjust the position of a position-supporting plate, can support a piston rod in a larger area, buffers the impact force of the piston rod and improves the practicability; the hydraulic buffer comprises a cylinder body, the rear end cap is installed to the rear end of cylinder body, the piston rod that stretches into in the cylinder body is installed to the left end of cylinder body, the outer end screwed connection of piston rod has the piston, outer wall and the interior screwed connection of cylinder body of piston, still include the hob, the opening has been seted up at the middle part of rear end cap, install mechanical seal in the opening, the mechanical seal in-connection has the actuating lever, the thread groove has been seted up to the left end of actuating lever, the right-hand member of hob inserts to the thread groove from the left end spiral of actuating lever in, the position board is installed to the left end of hob, the multiunit dashpot has been seted up to the left end outer loop isoangle of position board, all be provided with the buffering subassembly corresponding with the piston rod in the multiunit dashpot.

Description

Swing hydro-cylinder with adjustable corner

Technical Field

The utility model relates to a hydraulic cylinder's technical field especially relates to a swing hydro-cylinder with adjustable corner.

Background

At present, the double-helix swing hydraulic cylinder has the remarkable advantages of large helix angle, realization of higher torque output by the most compact structure, high bearing capacity, impact resistance, zero leakage, flexible installation and the like, so the double-helix swing hydraulic cylinder is widely applied to the swing of the working frame of the aerial work platform car; swinging and positioning a drilling arm of the mining equipment; tires or tracks for agricultural, industrial equipment; swinging of actuators such as a cleaning forklift; turning over garbage truck and garbage can, etc. The swing mechanism is particularly suitable for a structure with limited installation space and realizes the swing of the mechanism. The basic principle of the double-thread piston spiral type swing hydraulic cylinder is based on multi-stage spiral transmission, linear motion is transmitted to a spiral pair through hydraulic pressure continuously loaded on a piston, and the linear motion is converted into rotary motion under the meshing action of the spiral pair. As the linear stroke increases, the rotational angle of the rotational movement increases. The hydraulic pressure is directly converted into the torque of the output shaft through an identical torque conversion process.

The swing oil cylinder comprises a cylinder barrel, the axial one end of the cylinder barrel is provided with a front end cover, the front end cover is coaxially arranged with the cylinder barrel and is fixedly connected with the same, the cylinder barrel is internally and coaxially provided with a piston rod, the cylinder barrel is internally and coaxially provided with a piston, a first spiral pair is formed by a hole of the piston and the thread fit of the piston rod, the cylinder barrel is far away from a rear end cover which is fixedly connected with the one end of the front end cover, a second spiral pair is formed by the hole of the rear end cover and the thread connection of the excircle of the piston, the turning direction of the first spiral pair is opposite to that of the second spiral pair, one end of the rear end cover far away from the front end cover is provided with a limit column, the limit column is axially arranged along the piston rod, and the limit column penetrates through the rear end cover and is in threaded connection with the rear end cover. The utility model discloses a corner adjustable swing hydro-cylinder rotates spacing post when needs are adjusted the turned angle of piston rod for spacing post is close to or keeps away from the piston motion along the axial, thereby adjusts the distance between spacing post and the piston, and then adjusts the stroke of piston through spacing post, finally realizes adjusting the turned angle of piston rod.

Prior art scheme among the above-mentioned carries on spacingly through the stopper of adjusting rear end cap threaded connection to the piston, and the in-service operation in-process is because fluid can produce great impact force to the piston rod in the jar in the operation, and in the in-service use, if the impact area atress between stopper and the piston rod is uneven can influence life each other, is not convenient for adjust the degree of depth of piston piece simultaneously, and the practicality is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a swing hydro-cylinder with adjustable corner, the position of a board is supported in regulation that can be more convenient, and the piston rod is accepted to the bigger area, has cushioned the impact force of piston rod, has improved the practicality.

In order to achieve the above object, the utility model provides a following technical scheme: a corner-adjustable swing oil cylinder comprises a cylinder body, wherein a rear end cover is installed at the rear end of the cylinder body, a piston rod extending into the cylinder body is installed at the left end of the cylinder body, the outer end of the piston rod is spirally connected with a piston, and the outer wall of the piston is spirally connected with the inside of the cylinder body; still include the hob, the opening has been seted up at the middle part of rear end cap, install mechanical seal in the opening, the actuating lever is connected in the mechanical seal, the thread groove has been seted up to the left end of actuating lever, the right-hand member of hob inserts to the thread groove from the left end spiral of actuating lever in, the offset plate is installed to the left end of hob, the multiunit dashpot has been seted up to the left end outer loop isogonism of offset plate, all be provided with the buffer assembly corresponding with the piston rod in the multiunit dashpot, the support component that multiunit and rear end cap are connected is evenly installed to the right-hand member of offset plate.

Preferably, the buffer assembly comprises a buffer spring, a pressing plate and a buffer rod, wherein two ends of the buffer spring are respectively fixedly connected with the left side wall of the buffer slot and the right end of the pressing plate, and the right end of the buffer rod extends into the buffer slot and is fixedly connected with the left end of the pressing plate.

Preferably, the supporting component comprises a first sleeve, a second sleeve and a loop bar, the second sleeve and the first sleeve are sequentially sleeved from inside to outside, the first sleeve is fixedly connected with the left side wall of the rear end cover, and the loop bar is fixedly connected with the right end of the position supporting plate.

Preferably, the inner walls of the first sleeve and the second sleeve are provided with rubber layers, and the two groups of rubber layers are respectively in contact with the outer wall of the second sleeve and the outer wall of the sleeve rod.

Preferably, still including fixed cover, the inner wall of fixed cover is provided with the internal thread, and multiunit wedge board is installed to the right-hand member of rear end cap, and multiunit wedge board lies in the outside of actuating lever and encloses into the cylindricality, and the outside of multiunit wedge board all is provided with the external screw thread with internal thread assorted.

Preferably, the outer end of the fixed sleeve is sleeved with a rotating disc, and anti-skid grains are arranged on the outer side of the rotating disc.

Preferably, the outer side of the right end of the driving rod is provided with a rotating ring, and the middle part of the right end of the driving rod is provided with a wrench groove.

Compared with the prior art, the utility model provides a swing hydro-cylinder with adjustable corner possesses following beneficial effect:

in the corner-adjustable swing oil cylinder, the middle part of the rear end cover is connected with a driving rod through mechanical seal, the left end of the driving rod is in threaded connection with a spiral rod, the left end of the spiral rod is connected with a position abutting plate corresponding to a piston rod, the spiral rod is driven to rotate out through rotating the driving rod, so that the radially moving piston rod is abutted through the position abutting plate, and the position of the position abutting plate is adjusted in this way, so that the corner of the piston rod is limited; the left end outer loop of the position supporting plate and other angles are provided with a plurality of groups of buffer grooves, buffer assemblies corresponding to the piston rods are arranged in the plurality of groups of buffer grooves, the piston rods impacting are buffered through the plurality of groups of buffer assemblies, after the piston rods are completely supported, the end faces of the piston rods and the position supporting plate completely support, so that through the arrangement, the position of the position supporting plate can be conveniently adjusted, the piston rods can be supported in a larger area, the impact force of the piston rods is buffered, and the practicability is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic view of the connection structure of the driving rod, the screw rod and the position-supporting plate of the present invention;

fig. 3 is a schematic structural view of the support assembly of the present invention;

fig. 4 is a right side schematic view of the present invention.

The symbols in the figures indicate:

1. a cylinder body; 2. a rear end cap; 3. a piston rod; 4. a piston; 5. a screw rod; 6. mechanical sealing; 7. a drive rod; 8. a position abutting plate; 9. a buffer spring; 10. pressing a plate; 11. a buffer rod; 12. a first sleeve; 13. a second sleeve; 14. a loop bar; 15. a rubber layer; 16. fixing a sleeve; 17. a wedge plate; 18. rotating the disc; 19. a rotating ring; 20. a wrench groove.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1-4, the present invention provides a corner adjustable swing cylinder, which includes a cylinder body 1, a rear end cap 2 is installed at the rear end of the cylinder body 1, a piston rod 3 extending into the cylinder body 1 is installed at the left end of the cylinder body 1, the outer end of the piston rod 3 is spirally connected with a piston 4, and the outer wall of the piston 4 is spirally connected with the inner side of the cylinder body 1;

still include hob 5, the opening has been seted up at the middle part of rear end cap 2, installs mechanical seal 6 in the opening, and the drive rod 7 is connected to the 6 in-connection of mechanical seal, and the thread groove has been seted up to the left end of drive rod 7, and the right-hand member of hob 5 is inserted to the thread groove from the left end spiral of drive rod 7.

The left end of the screw rod 5 is provided with a position abutting plate 8, the position abutting plate 8 is opposite to the piston rod 3 left and right, the diameter of the position abutting plate 8 is 1cm larger than that of the piston rod 3, the screw rod 5 is driven to be screwed out by rotating the driving rod 7, so that the piston rod 3 which moves in the radial direction is abutted by the position abutting plate 8, and the position of the position abutting plate 8 is adjusted more conveniently by the mode, so that the rotation angle of the piston rod 3 is limited; the left end outer ring of the position supporting plate 8 is equiangularly provided with a plurality of groups of buffer grooves, buffer assemblies corresponding to the piston rods 3 are arranged in the plurality of groups of buffer grooves, and a plurality of groups of supporting assemblies connected with the rear end cover 2 are evenly arranged at the right end of the position supporting plate 8.

Further, the buffering subassembly includes buffer spring 9, clamp plate 10 and buffer bar 11, buffer spring 9's both ends respectively with the left side wall of dashpot and the right-hand member fixed connection of clamp plate 10, buffer bar 11's right-hand member stretch into to the dashpot and with the left end fixed connection of clamp plate 10, the open-ended bore of dashpot is less than its internal diameter, buffer bar 11 laminates with the opening part of dashpot, clamp plate 10 laminates with the inner wall of dashpot, buffer spring 9 is located when the biggest deformation of compression, buffer bar 11's left end flushes with the left end that supports position board 8.

The supporting component comprises a first sleeve 12, a second sleeve 13 and a loop bar 14, the second sleeve 13 and the first sleeve 12 are sequentially sleeved from inside to outside, and the first sleeve 12 is fixedly connected with the left side wall of the rear end cover 2; the loop bar 14 with support the right-hand member fixed connection of position board 8, through the setting of first sleeve pipe 12, second sleeve pipe 13 and loop bar 14, played certain supporting role and spacing screw rod 5 to the limit portion of position board 8.

Furthermore, the inner walls of the first sleeve 12 and the second sleeve 13 are provided with rubber layers 15, two groups of rubber layers 15 are respectively in contact with the outer wall of the second sleeve 13 and the outer wall of the sleeve rod 14, and the friction force between the rubber layers 15 is increased.

The utility model discloses still including fixed cover 16, the inner wall of fixed cover 16 is provided with the internal thread, and multiunit wedge 17 is installed to the right-hand member of rear end cap 2, and multiunit wedge 17 is located the outside of actuating lever 7 and encloses into the cylindricality, and multiunit wedge 17's the outside all is provided with internal thread assorted external screw thread, and fixed cover 16 carries out the screw thread with multiunit wedge 17 and screws, and multiunit wedge 17 supports actuating lever 7 and chucking to fixed actuating lever 7 has been carried out.

The outer end of the fixed sleeve 16 is sleeved with a rotating disc 18, the outer side of the rotating disc 18 is provided with anti-skidding threads, and the fixed sleeve 16 is convenient to operate through the arrangement of the rotating disc 18.

Furthermore, a rotating ring 19 is arranged on the outer side of the right end of the driving rod 7, a wrench groove 20 is formed in the middle of the right end of the driving rod 7, and manual operation of the driving rod 7 is facilitated through the arrangement of the rotating ring 19.

When the utility model is used, the middle part of the rear end cover 2 is connected with a driving rod 7 through a mechanical seal 6, the left end of the driving rod 7 is connected with a screw rod 5 through a thread, the left end of the screw rod 5 is connected with a position-resisting plate 8 corresponding to a piston rod 3, the screw rod 5 is driven to screw out by rotating the driving rod 7, thereby the piston rod 3 which moves radially is resisted through the position-resisting plate 8, the position of the position-resisting plate 8 is adjusted through the mode, when the position-resisting plate 8 moves, a first sleeve 12, a second sleeve 13 and a sleeve 14 stretch along with the movement, a plurality of groups of buffer grooves are arranged at equal angles at the outer ring at the left end of the position-resisting plate 8, buffer components corresponding to the piston rod 3 are arranged in the plurality of groups of buffer grooves, the piston rod 3 which impacts is buffered through the plurality of groups of buffer components, after the complete support, the end surface of the piston rod 3 is completely supported with the position-resisting plate 8, therefore, through the arrangement, the position-resisting plate 8 can be adjusted more conveniently, the piston rod 3 can be supported in a larger area, the impact force of the piston rod 3 is buffered, and the practicability is improved.

In the description of the present invention, it is to be understood that the positional or positional relationships, such as the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, are based on the positional or positional relationships illustrated in the drawings and are for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a swing hydro-cylinder with adjustable corner, includes cylinder body (1), and rear end cap (2) are installed to the rear end of cylinder body (1), and piston rod (3) that stretch into in cylinder body (1) are installed to the left end of cylinder body (1), and the outer end screwed connection of piston rod (3) has piston (4), and the outer wall of piston (4) and ground screwed connection in cylinder body (1) have its characterized in that, still include hob (5), the opening has been seted up at the middle part of rear end cap (2), install mechanical seal (6) in the opening, mechanical seal (6) in-connection has actuating lever (7), the thread groove has been seted up to the left end of actuating lever (7), the right-hand member of hob (5) inserts to the thread groove from the left end spiral of actuating lever (7) in, and the left end of hob (5) is installed and is supported position board (8), support the left end outer loop isogonism of position board (8) and seted up the multiunit dashpot, all be provided with the buffer assembly corresponding with piston rod (3) in the multiunit dashpot, the support assembly that multiunit and rear end cap (2) are connected is evenly installed to the right-hand member of propping a position board (8).

2. The corner-adjustable swing oil cylinder according to claim 1, wherein the buffer assembly comprises a buffer spring (9), a pressing plate (10) and a buffer rod (11), two ends of the buffer spring (9) are respectively fixedly connected with the left side wall of the buffer groove and the right end of the pressing plate (10), and the right end of the buffer rod (11) extends into the buffer groove and is fixedly connected with the left end of the pressing plate (10).

3. The corner-adjustable swing oil cylinder according to claim 2, wherein the support assembly comprises a first sleeve (12), a second sleeve (13) and a sleeve rod (14), the second sleeve (13) and the first sleeve (12) are sequentially sleeved from inside to outside, the first sleeve (12) is fixedly connected with the left side wall of the rear end cover (2), and the sleeve rod (14) is fixedly connected with the right end of the abutting plate (8).

4. The corner-adjustable swing cylinder according to claim 3, wherein the inner walls of the first sleeve (12) and the second sleeve (13) are provided with rubber layers (15), and two groups of rubber layers (15) are respectively in contact with the outer wall of the second sleeve (13) and the outer wall of the sleeve rod (14).

5. The corner-adjustable swing oil cylinder according to claim 4, further comprising a fixing sleeve (16), wherein an internal thread is arranged on the inner wall of the fixing sleeve (16), a plurality of sets of wedge plates (17) are mounted at the right end of the rear end cover (2), the plurality of sets of wedge plates (17) are located on the outer side of the driving rod (7) and enclose a cylindrical shape, and external threads matched with the internal thread are arranged on the outer sides of the plurality of sets of wedge plates (17).

6. The swing cylinder with adjustable rotation angle according to claim 5, characterized in that the outer end of the fixed sleeve (16) is sleeved with a rotating disc (18), and the outer side of the rotating disc (18) is provided with anti-skid threads.

7. The corner-adjustable swing oil cylinder according to claim 6, characterized in that a rotating ring (19) is arranged outside the right end of the driving rod (7), and a wrench groove (20) is formed in the middle of the right end of the driving rod (7).