阅读说明：本技术 一种多级旋转液压油缸 (Multistage rotary hydraulic oil cylinder ) 是由 廖长江 田震 于 2021-10-11 设计创作，主要内容包括：本发明涉及液压油缸技术领域,特别涉及一种多级旋转液压油缸,包括缸体,缸体的上端固定连接有缸盖,缸体的内壁且位于中间位置水平安装有隔板,缸体的内壁且位于隔板的上下两侧均设置有旋转机构,旋转机构的下端转动连接有一级壳体,旋转机构的上端转动连接有二级壳体,一级壳体和二级壳体组合在一起形成一个环形管道,位于旋转机构远离缸盖一侧的二级壳体与隔板的左端固定连接,位于旋转机构靠近缸盖一侧的一级壳体与隔板的右端固定连接,本发明中,通过设置两组旋转机构可以使得液压油缸更稳定的运转,避免液压油缸因受力不均匀使得活塞杆发生断裂,从而可以提高液压油缸的使用安全系数。(The invention relates to the technical field of hydraulic oil cylinders, in particular to a multistage rotary hydraulic oil cylinder, which comprises a cylinder body, wherein the upper end of the cylinder body is fixedly connected with a cylinder cover, a partition board is horizontally arranged on the inner wall of the cylinder body and positioned in the middle of the inner wall of the cylinder body, rotary mechanisms are respectively arranged on the upper side and the lower side of the partition board on the inner wall of the cylinder body, the lower end of each rotary mechanism is rotatably connected with a primary shell, the upper end of each rotary mechanism is rotatably connected with a secondary shell, the primary shell and the secondary shell are combined together to form an annular pipeline, the secondary shell positioned on one side of the rotary mechanism, far away from the cylinder cover, is fixedly connected with the left end of the partition board, the primary shell positioned on one side of the rotary mechanism, close to the cylinder cover, is fixedly connected with the right end of the partition board, through setting up two sets of rotary mechanism can make hydraulic cylinder more stable operation, avoid hydraulic cylinder to make the piston rod break because of the atress is inhomogeneous to can improve hydraulic cylinder's application safety factor.)

1. The utility model provides a multistage rotatory hydraulic cylinder, includes cylinder body (1), its characterized in that: the upper end of the cylinder body (1) is fixedly connected with a cylinder cover (6), the inner wall of the cylinder body (1) is horizontally provided with a baffle plate (5) at the middle position, the inner wall of the cylinder body (1) is provided with rotary mechanisms (4) at the upper and lower sides of the baffle plate (5), the lower end of each rotary mechanism (4) is rotatably connected with a first-stage shell (2), the upper end of each rotary mechanism (4) is rotatably connected with a second-stage shell (3), the first-stage shell (2) and the second-stage shell (3) are combined together to form an annular pipeline, the upper end of the second-stage shell (3) of each rotary mechanism (4) at the lower part of the baffle plate (5) is fixedly connected with the lower end of the baffle plate (5), the lower end of the first-stage shell (2) of each rotary mechanism (4) at the upper part of the baffle plate (5) is fixedly connected with the upper end of the baffle plate (5), through holes are formed in the outer surface of the cylinder body (1) and in both sides of the rotary mechanisms (4), be located the inner wall fixedly connected with of the left through-hole of cylinder body (1) advances oil pipe (11), the surface that advances oil pipe (11) is connected with the external surface fixed connection of one-level casing (2) and second grade casing (3) respectively, is located the inner wall fixedly connected with of the through-hole on cylinder body (1) right side goes out oil pipe (12), the surface that goes out oil pipe (12) is connected with the external surface fixed connection of one-level casing (2) and second grade casing (3) respectively.

2. A multi-stage hydraulic rotary ram as claimed in claim 1, wherein: the rotating mechanism (4) comprises a rotating disc (41), a connecting plate (42), a fixing block (43), a rotating shaft (44), a rotor (45), a stator (46), one-level grooves (47), a disc (48) and a main shaft (49), wherein a plurality of one-level grooves (47) are uniformly formed in one side of the rotating disc (41) in an annular mode, a plurality of connecting plates (42) are fixedly connected to the inner wall of the rotating disc (41), the fixing block (43) is fixedly connected to the other end of each connecting plate (42), a plurality of rotating shafts (44) are rotatably connected to the outer surface of each fixing block (43), the rotating shafts (44) and the connecting plates (42) are arranged in a staggered mode, the other ends of the rotating shafts (44) penetrate through the inner wall of the rotating disc (41) and extend to the discs (48) fixedly connected to the inner wall of the one-level grooves (47), and the outer surface of each rotating shaft (44) is rotatably connected with the inner wall of the rotating disc (41), the surface of pivot (44) just is located intermediate position fixedly connected with rotor (45) of rolling disc (41) and fixed block (43), is located the inner wall fixedly connected with main shaft (49) of fixed block (43) above baffle (5), the upper end of main shaft (49) runs through the lower extreme of cylinder cap (6) and extends to the outside of cylinder body (1), just the surface of main shaft (49) rotates with the inner wall of cylinder cap (6) to be connected, the lower extreme of main shaft (49) runs through the upper end of baffle (5) and extends to the below of baffle (5), just the surface of main shaft (49) rotates with the inner wall of baffle (5) to be connected, is located the inner wall of fixed block (43) below baffle (5) and the lower extreme surface fixed connection of main shaft (49), the surface of main shaft (49) just is located the both sides rotation of fixed block (43) and is connected with two stators (46), the stator (46) is adapted to the rotor (45).

3. A multi-stage hydraulic rotary ram as claimed in claim 2, wherein: second grade recess (7) have all been seted up to the both sides of rolling disc (41), the inner wall fixedly connected with sealing washer (10) of second grade recess (7), the surface of sealing washer (10) rotates with the surface of one-level casing (2) and second grade casing (3) respectively and is connected.

4. A multi-stage hydraulic rotary ram as claimed in claim 1, wherein: three-stage grooves (8) are formed in one side, close to each other, of the first-stage shell (2) and the second-stage shell (3), and sealing gaskets (9) are fixedly connected to the inner walls of the three-stage grooves (8).

5. A multi-stage hydraulic rotary ram as claimed in claim 4, wherein: sealing rings (91) are arranged on two sides of the sealing gasket (9), and the inner walls of the sealing rings (91) are fixedly connected with the outer surfaces of the oil inlet pipe (11) and the oil outlet pipe (12) respectively.

6. A multi-stage hydraulic rotary ram as claimed in claim 2, wherein: the shape of rotor (45) sets up to L type structure, rotor (45) and stator (46) one side of cooperating are provided with the gear profile.

7. A multi-stage hydraulic rotary ram as claimed in claim 2, wherein: the stator (46) is in a fan-shaped structure, and a gear profile is arranged on one side, matched with the rotor (45), of the stator (46).

8. A multi-stage hydraulic rotary ram as claimed in claim 1, wherein: be located outer fixed surface of left stator (46) of cylinder body (1) is connected with connecting rod (13), keeps away from the other end of connecting rod (13) of cylinder cap (6) and the inner wall fixed connection of cylinder body (1) are close to outer fixed surface of the other end of connecting rod (13) of cylinder cap (6) and baffle (5) is connected, is located outer fixed surface of stator (46) on cylinder body (1) right side is connected with connecting rod (13), keeps away from the other end of connecting rod (13) of cylinder cap (6) and the inner wall fixed connection of baffle (5) are close to the other end of connecting rod (13) of cylinder cap (6) and the left end fixed connection of cylinder cap (6).

9. A multi-stage hydraulic rotary ram as claimed in claim 3 wherein: the sealing ring (10) is made of wear-resistant materials.

Technical Field

The invention relates to the technical field of hydraulic oil cylinders, in particular to a multi-stage rotating hydraulic oil cylinder.

Background

The inside rotor and the stator that have two fan-shaped structures of rotatory hydro-cylinder, the rotor is rotatable less than 360 degrees in certain angle, is generally not more than 270 degrees, and the stator is nonrotation. Hydraulic oil pipes are respectively communicated with two sides of the rotor, oil is fed into one side of the rotor, and oil must be returned into the other side of the rotor. The rotor stops when colliding with the stator, then the oil inlet direction is changed, and the rotor rotates again, and the reciprocating operation is carried out. The patent numbers are: CN202010783613.2 discloses a multi-stage rotating hydraulic oil cylinder, and relates to the technical field of hydraulic oil cylinders, wherein an outer cylinder is fixedly arranged on the left side inside a shell, an inner cylinder is movably inserted inside the outer cylinder, and a first piston is fixedly arranged on the left side wall of the inner cylinder; a second piston is fixedly arranged at the inner end of the piston rod; a second runner is arranged in the side wall of the inner cylinder, and the second cavity is communicated with the third cavity through the second runner; a sliding groove is fixedly arranged on the rear side wall of the inner part of the shell on the right side of the outer cylinder, and a sliding block is arranged in the middle of the sliding groove in a sliding manner; fixed cover is equipped with fixed gear in the No. two pivots of a connecting rod front side, and the downside of fixed gear meshes mutually and is provided with movable gear, and power output shaft is worn to establish fixedly in the middle part of movable gear, converts the straight reciprocating motion of hydro-cylinder into rotatory reciprocating motion, and setting up of multi-stage cylinder has increased rotatory moment of torsion, and simultaneously, what the whole shell of device adopted is the detachable structure, and simple structure conveniently maintains the device in inside, the cost of maintenance has significantly reduced.

The existing rotary hydraulic oil cylinder has the problem that a piston rod in the oil cylinder is easy to break due to uneven stress conditions, so that a larger safety factor cannot be obtained.

Therefore, a multi-stage rotating hydraulic oil cylinder is provided.

Disclosure of Invention

The invention aims to provide a multistage rotary hydraulic oil cylinder, which mainly solves the problem that a piston rod in the oil cylinder is easy to break due to uneven stress conditions of the conventional rotary hydraulic oil cylinder, so that a larger safety factor cannot be obtained.

In order to achieve the purpose, the invention provides the following technical scheme:

a multi-stage rotary hydraulic oil cylinder comprises a cylinder body, wherein a cylinder cover is fixedly connected to the upper end of the cylinder body, a partition plate is horizontally arranged on the inner wall of the cylinder body and positioned at the middle position, rotary mechanisms are arranged on the inner wall of the cylinder body and positioned at the upper side and the lower side of the partition plate respectively, a first-stage shell is rotatably connected to the lower end of the rotary mechanism, a second-stage shell is rotatably connected to the upper end of the rotary mechanism, the first-stage shell and the second-stage shell are combined together to form an annular pipeline, the upper end of the second-stage shell of the rotary mechanism positioned below the partition plate is fixedly connected with the lower end of the partition plate, the lower end of the first-stage shell of the rotary mechanism positioned above the partition plate is fixedly connected with the upper end of the partition plate, through holes are formed in the outer surface of the cylinder body and positioned at the two sides of the rotary mechanism, an oil inlet pipe is fixedly connected with the inner wall of the through hole at the left side of the cylinder body, and the outer surface of the oil inlet pipe is fixedly connected with the outer surfaces of the first-stage shell and the second-stage shell respectively, and the outer surface of the oil outlet pipe is fixedly connected with the outer surfaces of the first-stage shell and the second-stage shell respectively.

By adopting the technical scheme, when a user needs to use the hydraulic oil cylinder, firstly, hydraulic oil is pumped into the rotating mechanism through the oil inlet pipe by the liquid pump, then the rotating mechanism can be driven to rotate through the flow of the hydraulic oil, and finally, the hydraulic oil flows back into the oil tank through the oil outlet pipe for recycling, so that the hydraulic oil cylinder can rotate; through setting up the baffle and being convenient for play the fixed effect of support to slewing mechanism, can prevent that two sets of rotary mechanism from damaging spare part because of the moment of torsion is too big at the pivoted in-process, can make hydraulic cylinder more stable operation through setting up two sets of rotary mechanism, avoid hydraulic cylinder to make the piston rod break because of the atress is inhomogeneous to improve hydraulic cylinder's application safety factor.

Preferably, the rotating mechanism comprises a rotating disc, a connecting plate, a fixing block, a rotating shaft, a rotor, a stator, one-level grooves, a disc and a main shaft, wherein a plurality of one-level grooves are uniformly formed in one side of the rotating disc in an annular mode, a plurality of connecting plates are fixedly connected to the inner wall of the rotating disc, fixing blocks are fixedly connected to the other ends of the connecting plates, a plurality of rotating shafts are rotatably connected to the outer surface of each fixing block, the rotating shafts and the connecting plates are arranged in a staggered mode, the other ends of the rotating shafts penetrate through the inner wall of the rotating disc and extend into the one-level grooves, the outer surface of each rotating shaft is rotatably connected with the inner wall of the rotating disc, the outer surface of each rotating shaft is fixedly connected with the rotor at the middle position of the rotating disc and the fixing blocks, the main shaft is fixedly connected with the main shaft at the inner wall of the fixing block above the partition plate, and the upper end of the main shaft penetrates through the lower end of the cylinder cover and extends to the outside of the cylinder body, just the surface of main shaft is connected with the inner wall rotation of cylinder cap, the lower extreme of main shaft runs through the upper end of baffle and extends to the below of baffle, just the surface of main shaft is connected with the inner wall rotation of baffle, is located the inner wall of the fixed block of baffle below is connected with the lower extreme external surface fixed connection of main shaft, the surface of main shaft just is located the both sides rotation of fixed block and is connected with two stators, stator and rotor looks adaptation.

By adopting the technical scheme, as the hydraulic oil enters the primary shell and the secondary shell along the direction below the tangent line of the rotating disc, the rotating disc cannot be driven to rotate by the hydraulic oil in the flowing process, and the disc positioned on one side of the rotating disc is perpendicular to the flowing direction of the hydraulic oil, so that the disc on one side of the rotating disc can be driven to rotate by the hydraulic oil, and then the rotating disc is driven to rotate by the disc; the rotating disc is in a planar shape, so that the rotating disc cannot block hydraulic oil when rotating, only the amount of oil inlet can be limited, and the flow rate can be controlled through the oil inlet pressure of the hydraulic oil; when hydraulic oil enters into the casing inside, can promote to rotate with rolling disc mutually perpendicular's disc through hydraulic oil, then the disc drives stator and fixed block through the pivot and rotates, then the fixed block drives the rolling disc through the connecting plate and rotates, drive the main shaft through the fixed block at last and rotate, when the stator rotates to the position with rotor matched with, the stator can drive the disc through the pivot and overturn, thereby make the disc of rolling disc both sides be in nonparallel state all the time, then can promote the disc through hydraulic oil and carry out the reciprocal rotation of circulation along the anticlockwise, thereby the rotational speed of main shaft can be adjusted accurately to the oil pressure through hydraulic oil, reduce the vibration that hydraulic cylinder produced at rotatory in-process, improve hydraulic cylinder's life.

Preferably, the both sides of rolling disc have all been seted up the second grade recess, the inner wall fixedly connected with sealing washer of second grade recess, the surface of sealing washer rotates with the surface of one-level casing and second grade casing respectively and is connected.

Through adopting above-mentioned technical scheme, can improve this hydraulic cylinder's leakproofness through setting up the sealing washer, avoid hydraulic cylinder a large amount of oil leakages in the use to can reduce use cost.

Preferably, a third-level groove is formed in one side, close to each other, of the first-level shell and the second-level shell, and a sealing gasket is fixedly connected to the inner wall of the third-level groove.

Through adopting above-mentioned technical scheme, can improve the leakproofness of casing through setting up sealed the pad, avoid this hydraulic cylinder to take place the oil leak at the in-process of business turn over oil, increase use cost.

Preferably, the sealing gasket is arranged on two sides of the sealing gasket, and the inner wall of the sealing gasket is fixedly connected with the outer surfaces of the oil inlet pipe and the oil outlet pipe respectively.

Through adopting above-mentioned technical scheme, through setting up the sealing ring, can improve into oil pipe and go out the leakproofness between oil pipe and the casing.

Preferably, the rotor is in an L-shaped structure, and a gear profile is arranged on one side of the rotor, which is matched with the stator.

By adopting the technical scheme, the rotor is in an L-shaped structure, so that the disc can be turned over by 90 degrees, the contact area between the hydraulic oil and the disc can be ensured to be the largest, and the disc can be better pushed to rotate by the hydraulic oil; the gear profile is arranged on one side of the rotor matched with the stator, so that the abrasion of the surface of the rotor can be reduced, and the disc can be overturned more stably.

Preferably, the stator is shaped as a sector structure, and a gear profile is arranged on one side of the stator, which is matched with the rotor.

By adopting the technical scheme, the shape of the stator is a fan-shaped structure, so that the disks on the two sides of the rotating disk are always in a non-parallel state; the gear profile is arranged on one side of the stator matched with the rotor, so that the abrasion of the surface of the stator can be reduced, and the disc can be overturned more stably.

Preferably, be located the outer fixed surface of the left stator of cylinder body is connected with the connecting rod, keeps away from the other end of the connecting rod of cylinder cap and the inner wall fixed connection of cylinder body are close to the other end of the connecting rod of cylinder cap and the outer fixed surface of baffle are connected, are located the outer fixed surface of the stator on cylinder body right side is connected with the connecting rod, keeps away from the other end of the connecting rod of cylinder cap and the inner wall fixed connection of baffle are close to the other end of the connecting rod of cylinder cap and the left end fixed connection of cylinder cap.

Through adopting above-mentioned technical scheme, be convenient for fix the stator through setting up the connecting rod.

Preferably, the sealing ring is made of a wear-resistant material.

By adopting the technical scheme, the material through setting up the sealing washer adopts stand wear and tear material to can avoid sealing washer and casing to rotate for a long time and make the sealing washer receive the damage.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the rotating mechanism is arranged, so that the rotating speed of the main shaft can be accurately adjusted through the oil pressure of hydraulic oil, the vibration generated by the hydraulic oil cylinder in the rotating process is reduced, the service life of the hydraulic oil cylinder is prolonged, the piston rod is prevented from being broken due to uneven stress of the hydraulic oil cylinder, the use safety factor of the hydraulic oil cylinder is improved, meanwhile, the device is simple in structure, convenient to install and disassemble, and the production cost is reduced; through setting up sealed the pad, can improve into the oil pipe and go out the leakproofness between oil pipe and the casing, avoid hydraulic cylinder a large amount of oil leakages in the use to can reduce use cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

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

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 according to the present invention;

FIG. 4 is a schematic view of a structure of the first stage housing and the rotating mechanism of the present invention;

FIG. 5 is a schematic view of a structure of the first-stage housing, the second-stage housing and the rotating mechanism of the present invention;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5 according to the present invention;

FIG. 7 is a schematic structural view of a stator of the present invention;

fig. 8 is a schematic sectional view of the gasket of the present invention.

In the figure: the oil cylinder comprises a cylinder body 1, a primary shell 2, a secondary shell 3, a rotating mechanism 4, a rotating disc 41, a connecting plate 42, a fixing block 43, a rotating shaft 44, a rotor 45, a stator 46, a primary groove 47, a disc 48, a main shaft 49, a partition plate 5, a cylinder cover 6, a secondary groove 7, a tertiary groove 8, a sealing gasket 9, a sealing ring 91, a sealing ring 10, an oil inlet pipe 11, an oil outlet pipe 12 and a connecting rod 13.

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 to 8, the present invention provides a multi-stage rotating hydraulic cylinder, which comprises:

a multi-stage rotary hydraulic oil cylinder comprises a cylinder body 1, a cylinder cover 6 is fixedly connected to the upper end of the cylinder body 1, a partition plate 5 is horizontally arranged on the inner wall of the cylinder body 1 and positioned in the middle of the inner wall of the cylinder body 1, rotary mechanisms 4 are respectively arranged on the inner wall of the cylinder body 1 and positioned on the upper side and the lower side of the partition plate 5, the lower end of each rotary mechanism 4 is rotatably connected with a first-stage shell 2, the upper end of each rotary mechanism 4 is rotatably connected with a second-stage shell 3, the first-stage shells 2 and the second-stage shells 3 are combined together to form an annular pipeline, the upper end of each second-stage shell 3 of each rotary mechanism 4 positioned below the partition plate 5 is fixedly connected with the lower end of the partition plate 5, through holes are respectively formed in the outer surface of the cylinder body 1 and positioned on the two sides of the rotary mechanisms 4, and an oil inlet pipe 11 is fixedly connected to the inner wall of the through hole positioned on the left side of the cylinder body 1, the outer surface of the oil inlet pipe 11 is fixedly connected with the outer surfaces of the first-stage shell 2 and the second-stage shell 3 respectively, the inner wall of the through hole on the right side of the cylinder body 1 is fixedly connected with the oil outlet pipe 12, and the outer surface of the oil outlet pipe 12 is fixedly connected with the outer surfaces of the first-stage shell 2 and the second-stage shell 3 respectively.

By adopting the technical scheme, when a user needs to use the hydraulic oil cylinder, firstly, hydraulic oil is pumped into the rotating mechanism 4 through the oil inlet pipe 11 by the liquid pump, then the rotating mechanism 4 can be driven to rotate through the flow of the hydraulic oil, and finally, the hydraulic oil flows back into the oil tank through the oil outlet pipe 12 to be recycled, so that the hydraulic oil cylinder can rotate; through setting up baffle 5 and being convenient for play the fixed effect of support to slewing mechanism 4, can prevent that two sets of rotary mechanism from damaging spare part because of the moment of torsion is too big at the pivoted in-process, can make hydraulic cylinder more stable operation through setting up two sets of rotary mechanism 4, avoid hydraulic cylinder to make the piston rod break because of the atress is inhomogeneous to can improve hydraulic cylinder's factor of safety.

As an embodiment of the invention, the rotating mechanism 4 comprises a rotating disc 41, a connecting plate 42, a fixed block 43, a rotating shaft 44, a rotor 45, a stator 46, a first-stage groove 47, a disc 48 and a spindle 49, wherein a plurality of first-stage grooves 47 are uniformly formed in one side of the rotating disc 41 in an annular manner, a plurality of connecting plates 42 are fixedly connected to the inner wall of the rotating disc 41, the fixed block 43 is fixedly connected to the other end of the connecting plate 42, a plurality of rotating shafts 44 are rotatably connected to the outer surface of the fixed block 43, the plurality of rotating shafts 44 are arranged in a staggered manner with respect to the connecting plates 42, the disc 48 is fixedly connected to the other end of the rotating shaft 44, which penetrates through the inner wall of the rotating disc 41 and extends into the first-stage groove 47, the outer surface of the rotating shaft 44 is rotatably connected to the inner wall of the rotating disc 41, the rotor 45 is fixedly connected to the outer surface of the rotating shaft 44 and positioned at the middle position between the rotating disc 41 and the fixed block 43, the spindle 49 is fixedly connected to the inner wall of the fixed block 43 positioned above the partition 5, the upper end of main shaft 49 runs through the lower extreme of cylinder cap 6 and extends to the outside of cylinder body 1, and the surface of main shaft 49 rotates with the inner wall of cylinder cap 6 and is connected, the lower extreme of main shaft 49 runs through the upper end of baffle 5 and extends to the below of baffle 5, and the surface of main shaft 49 rotates with the inner wall of baffle 5 and is connected, the inner wall of the fixed block 43 that is located the below of baffle 5 is connected with the lower extreme surface fixed connection of main shaft 49, the surface of main shaft 49 and the both sides that are located fixed block 43 rotate and are connected with two stators 46, stators 46 and rotor 45 looks adaptation.

By adopting the technical scheme, as the hydraulic oil enters the first-stage shell 2 and the second-stage shell 3 along the direction below the tangent line of the rotating disc 41, the rotating disc 41 cannot be driven to rotate by the hydraulic oil in the flowing process, and the disc 48 positioned on one side of the rotating disc 41 is vertical to the flowing direction of the hydraulic oil, so that the disc 48 on one side of the rotating disc 41 can be driven to rotate by the hydraulic oil, and the rotating disc 41 is driven to rotate by the disc 48; because the rotating disc 41 is in a planar shape, the rotating disc 41 does not block hydraulic oil when rotating, only the amount of oil inlet can be limited, and the flow rate can be controlled by the oil inlet pressure of the hydraulic oil; when hydraulic oil enters the shell, the disc 48 perpendicular to the rotating disc 41 can be pushed to rotate through the hydraulic oil, then the disc 48 drives the stator 46 and the fixing block 43 to rotate through the rotating shaft 44, then the fixing block 43 drives the rotating disc 41 to rotate through the connecting plate 42, finally the main shaft 49 is driven to rotate through the fixing block 43, when the stator 46 rotates to the position matched with the rotor 45, the stator 46 can drive the disc 48 to overturn through the rotating shaft 44, so that the discs 48 on the two sides of the rotating disc 41 are always in a non-parallel state, then the disc 48 can be pushed to circularly reciprocate along the counterclockwise direction through the hydraulic oil, the rotating speed of the main shaft 49 can be accurately adjusted through the oil pressure of the hydraulic oil, the vibration generated by the hydraulic oil cylinder in the rotating process is reduced, and the service life of the hydraulic oil cylinder is prolonged.

As an embodiment of the present invention, two sides of the rotating disc 41 are both provided with a secondary groove 7, the inner wall of the secondary groove 7 is fixedly connected with a sealing ring 10, and the outer surface of the sealing ring 10 is respectively rotatably connected with the outer surfaces of the primary shell 2 and the secondary shell 3.

By adopting the technical scheme, the sealing performance of the hydraulic oil cylinder can be improved by arranging the sealing ring 10, and a large amount of oil leakage of the hydraulic oil cylinder in the use process is avoided, so that the use cost can be reduced.

As an embodiment of the present invention, a third-stage groove 8 is formed on a side of the first-stage casing 2 close to the second-stage casing 3, and a sealing gasket 9 is fixedly connected to an inner wall of the third-stage groove 8.

Through adopting above-mentioned technical scheme, can improve the leakproofness of casing through setting up sealed pad 9, avoid this hydraulic cylinder to take place the oil leak at the in-process of business turn over oil, increase use cost.

In one embodiment of the present invention, the sealing rings 91 are disposed on both sides of the gasket 9, and the inner walls of the sealing rings 91 are fixedly connected to the outer surfaces of the oil inlet pipe 11 and the oil outlet pipe 12, respectively.

Through adopting above-mentioned technical scheme, through setting up sealing ring 91, can improve into the leakproofness between oil pipe 11 and oil pipe 12 and the casing.

In one embodiment of the present invention, the rotor 45 is shaped as an L-shaped structure, and the side of the rotor 45 that is engaged with the stator 46 is provided with a gear profile.

By adopting the technical scheme, the rotor 45 is in an L-shaped structure, so that the disc 48 can be turned over by 90 degrees, the contact area between hydraulic oil and the disc 48 can be ensured to be the largest, and the disc 48 can be better pushed to rotate by the hydraulic oil; by providing the rotor 45 with a gear profile on the side that engages the stator 46, wear on the surface of the rotor 45 is reduced and the disc 48 is turned more smoothly.

In one embodiment of the present invention, the stator 46 is shaped as a sector structure, and the side of the stator 46 that is engaged with the rotor 45 is provided with a gear profile.

By adopting the technical scheme, the circular discs 48 on the two sides of the rotating disc 41 can be always in a non-parallel state by arranging the stator 46 in a fan-shaped structure; by providing the gear profile on the side of the stator 46 that engages the rotor 45, wear on the surface of the stator 46 is reduced and the disc 48 is tumbled more smoothly.

In one embodiment of the present invention, the outer surface of the stator 46 located on the left side of the cylinder 1 is fixedly connected with the connecting rod 13, the other end of the connecting rod 13 far away from the cylinder cover 6 is fixedly connected with the inner wall of the cylinder 1, the other end of the connecting rod 13 close to the cylinder cover 6 is fixedly connected with the outer surface of the partition plate 5, the outer surface of the stator 46 located on the right side of the cylinder 1 is fixedly connected with the connecting rod 13, the other end of the connecting rod 13 far away from the cylinder cover 6 is fixedly connected with the inner wall of the partition plate 5, and the other end of the connecting rod 13 close to the cylinder cover 6 is fixedly connected with the left end of the cylinder cover 6.

By adopting the technical scheme, the stator 46 is convenient to fix by arranging the connecting rod 13.

In one embodiment of the present invention, the seal ring 10 is made of a wear-resistant material.

By adopting the technical scheme, the sealing ring 10 is made of the wear-resistant material, so that the sealing ring 10 is prevented from being damaged due to the fact that the sealing ring 10 and the shell rotate for a long time.

The working principle is as follows: when a user needs to use the hydraulic oil cylinder, firstly, hydraulic oil is pumped into the shell through the oil inlet pipe 11 by a liquid pump, then the disc 48 which is perpendicular to the rotating disc 41 is pushed to rotate by the hydraulic oil, then the disc 48 drives the stator 46 and the fixed block 43 to rotate through the rotating shaft 44, then the fixed block 43 drives the rotating disc 41 to rotate through the connecting plate 42, finally the main shaft 49 is driven to rotate through the fixed block 43, when the stator 46 rotates to the position matched with the rotor 45, the stator 46 can drive the disc 48 to turn over through the rotating shaft 44, so that the discs 48 on two sides of the rotating disc 41 are always in a non-parallel state, then the disc 48 can be pushed by the hydraulic oil to circularly and reciprocally rotate along the anticlockwise direction, thereby the rotating speed of the main shaft 49 can be accurately adjusted through the oil pressure of the hydraulic oil, and the vibration generated by the hydraulic oil cylinder in the rotating process can be reduced, the service life of the hydraulic oil cylinder is prolonged, the piston rod of the hydraulic oil cylinder is prevented from being broken due to uneven stress, and the use safety factor of the hydraulic oil cylinder is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.