CN211852378U

CN211852378U - Balance cylinder device

Info

Publication number: CN211852378U
Application number: CN202020182517.8U
Authority: CN
Inventors: 靳海峰
Original assignee: Guangzhou Huahong Automation Engineering Co ltd
Current assignee: Guangzhou Huahong Automation Engineering Co ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-11-03
Anticipated expiration: 2030-02-18

Abstract

The utility model relates to a balance cylinder device, including main hydraulic cylinder body, wear to be equipped with the piston rod in the main hydraulic cylinder body, the pole body of piston rod is equipped with and pushes away the dish with the internal footpath complex piston of main hydraulic cylinder, and this piston rod passes main hydraulic cylinder body and is equipped with the piston head in one end, main hydraulic cylinder body both ends are equipped with the end cover, the other end of piston rod passes main hydraulic cylinder body and is connected with the cushion cylinder, the both sides that the piston pushed away the dish are equipped with organ cover structure and the sealed lantern ring in main hydraulic cylinder body symmetry, both sides organ cover structure all passes respective sealed lantern ring and is connected with cushion cylinder fluid circuit, the both ends fluid circuit of main hydraulic cylinder body is connected with the balance cylinder, adopts the beneficial effect of above-mentioned scheme to do: the double-hydraulic structure is adopted, the hydraulic loop is used for buffering, the mutual influence is avoided, the problem of mechanical fatigue failure does not exist, the hidden danger that the chemical properties are obviously changed or the hidden danger is corroded by a hydraulic medium does not exist, the buffering effect is good, and therefore the hydraulic buffer is suitable for popularization and use.

Description

Balance cylinder device

Technical Field

The utility model relates to a hydraulic pressure atmospheric pressure technical field, specifically speaking relate to a balance cylinder device.

Background

The hydraulic balance cylinder is easy to unbalance due to the fact that impact force is too large to buffer, once unbalance may cause various problems or even cause accidents, at present, a spring buffer structure which is beneficial to buffering is used in the hydraulic balance cylinder, impact from the outside is effectively reduced, the service life is prolonged, but a spring which is used as a buffer medium has the problem of mechanical fatigue and the hidden danger of corrosion or chemical property change of the hydraulic medium, and therefore the balance cylinder with the buffer structure which is more durable and reliable is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that exists among the background art, provide a balance cylinder device, solved relevant technical defect conscientiously, concrete scheme is as follows:

the utility model provides a balance cylinder device, includes the main hydraulic cylinder body, wear to be equipped with the piston rod in the main hydraulic cylinder body, the pole body of piston rod is equipped with and pushes away the dish with main hydraulic cylinder body internal diameter complex piston, and this piston rod passes main hydraulic cylinder body and is equipped with the piston head in one end, main hydraulic cylinder body both ends are equipped with the end cover, the other end of piston rod passes main hydraulic cylinder body and is connected with the cushion cylinder, the both sides that the piston pushed away the dish are equipped with organ cover structure and sealed lantern ring in main hydraulic cylinder body symmetry, both sides organ cover structure all passes respective sealed lantern ring and is connected with the cushion cylinder hydraulic circuit, the both ends hydraulic circuit of main hydraulic cylinder body is connected with the balance cylinder, is close to be equipped with centering buffer ball structure between the sealed lantern ring of piston head one side and the main hydraulic cylinder body end, be equipped with elastic buffer structure between piston head and the end cover, the balance cylinders are rigidly connected, the main hydraulic cylinder body is connected with the buffer cylinder through a buffer support, and the buffer support is erected in the buffer guide rail.

As a further technical scheme of the utility model, the piston head with be equipped with the buffering cushion between the elastic buffer structure, the elastic buffer structure include with end cover fixed connection's spring washer, equipartition in the buffer spring of spring washer terminal surface and locate the circlip between buffer spring and the buffering cushion.

As a further technical scheme of the utility model, buffer cylinder and balance cylinder all are equipped with pumping installations, main hydraulic cylinder body, buffer cylinder and balance cylinder are the oil medium.

As the utility model discloses further technical scheme, organ cover structure is the beta structure of annular, closed organ formula, and one end is connected with the piston pushing tray, and the other end is connected with the sealing sleeve ring, the sealing sleeve ring is equipped with the intercommunication the inner chamber of organ cover structure and the passageway of buffer cylinder, this passageway are located the terminal surface of the sealing sleeve ring is perhaps the side, fixed connection between the lateral wall of the sealing sleeve ring and the inner wall of main hydraulic cylinder body.

As the utility model discloses further technical scheme, centering buffering ball structure includes that rotational symmetry is fixed in the centering spring of main hydraulic cylinder inner wall, and locate the steel core ball to well spring tip, the outer wall cover of steel core ball is equipped with one deck stereoplasm rubber buffer layer.

As a further technical scheme of the utility model, the buffering support is L type structure, with the outer wall of cushion cylinder is connected through fixed cover, and is fixed continuous through the bipod frame of being no less than 1 department between the outer wall of main hydraulic cylinder body.

As a further technical scheme of the utility model, the bottom of buffering support is equipped with track spring along the equal symmetry in the both ends of the length direction of buffering guide rail, the both ends stroke end department of buffering guide rail is equipped with the crashproof cushion.

As a further technical scheme of the utility model, the centering buffering ball structure with be equipped with the spacing lantern ring between the tip of main hydraulic cylinder body, be equipped with the sealing washer between spacing lantern ring and the end cover, main hydraulic cylinder body external sleeve is equipped with the radiation shield.

The beneficial effect who adopts above-mentioned scheme does: adopt dual hydraulic structure to hydraulic circuit cushions hydraulic circuit, is not influenced each other, does not have the problem of mechanical fatigue inefficacy, also does not have obvious chemical properties to change or by the hidden danger of hydraulic medium corruption, and the cushioning effect compares in inside spring medium, and the effect is equivalent or even more excellent, therefore the application is respond well, suitable using widely.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an axial view of the elastic buffer structure.

Fig. 3 is an axial view of the structure of the centering cushion ball.

Fig. 4 is a left side view of the buffer bracket in cooperation with the buffer rail.

Fig. 5 is a right-side schematic view of the buffer bracket and the buffer rail.

Wherein: the device comprises a main hydraulic cylinder body 1, a piston rod 2, a piston push disc 3, a piston head 4, an end cover 5, a buffer cylinder 6, an organ cover structure 7, a sealing sleeve ring 8, a centering buffer ball structure 9, an elastic buffer structure 10, a buffer support 11, a buffer guide rail 12, a buffer rubber pad 13, an elastic washer 14, a buffer spring 15, an elastic retainer ring 16, a centering spring 17, a steel core ball 18, a hard rubber buffer layer 19, a fixed sleeve 20, a bipod 21, a track spring 22, an anti-collision rubber pad 23, a limit sleeve ring 24, a sealing ring 25, a balance cylinder 26 and a heat insulation sleeve 27.

Detailed Description

Embodiments of the present invention will be described with reference to the accompanying drawings and related embodiments, wherein the following embodiments are only preferred embodiments for better illustrating the present invention, and the embodiments of the present invention are not limited to the following embodiments, and the related essential components of the present invention related to the technical field should be considered as known in the art and can be known and mastered by those skilled in the technical field.

In the description of the present invention, it is to be understood that the terms "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," and the like are used in the orientation or positional relationship indicated in the drawings, merely for the purpose of describing the invention and simplifying the description, and 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 limiting of the invention.

Referring to the attached drawings, a balance cylinder device comprises a main hydraulic cylinder body 1, a piston rod 2 penetrates through the main hydraulic cylinder body 1, a piston push disc 3 matched with the inner diameter of the main hydraulic cylinder body 1 is arranged on the rod body of the piston rod 2, a piston head 4 is arranged at one end of the piston rod 2 penetrating through the main hydraulic cylinder body 1, end covers 5 are arranged at two ends of the main hydraulic cylinder body 1, the other end of the piston rod 2 penetrates through the main hydraulic cylinder body 1 to be connected with a buffer cylinder 6, organ cover structures 7 and seal lantern rings 8 are symmetrically arranged in the main hydraulic cylinder body 1 at two sides of the piston push disc 3, the organ cover structures 7 at two sides penetrate through the respective seal lantern rings 8 to be connected with the buffer cylinder 6, the balance cylinders 26 are connected with the hydraulic circuits at two ends of the main hydraulic cylinder body 1, and a centering buffer ball structure 9 is arranged between the seal lantern ring 8 at one side close to the piston head 4 and the, an elastic buffer structure 10 is arranged between the piston head 4 and the end cover 5, the main hydraulic cylinder body 1 is rigidly connected with the buffer cylinder 6 and the balance cylinder 26, the main hydraulic cylinder body 1 is connected with the buffer cylinder 6 through a buffer support 11, and the buffer support 11 is erected in the buffer guide rail 12.

The balancing cylinder 26 provides the main hydraulic cylinder 1 with the force required for balancing, the balancing of the main moment is realized by adjusting the proportion between the hydraulic media on both sides of the piston push disc 3, when the impact is received, the hydraulic medium of the buffer cylinder 6 is proportionally delivered to the organ cover structures 7 at the two sides according to the requirement of moment, because the organ cover structure 7 can be made of flexible materials, when the organ cover structure is impacted, the organ cover structure can provide moment for buffering to realize the function, and also provides the necessary damping stroke for the piston rod 2, and in addition, the elastic damping structure acting on the outside does not worry about the influence of the hydraulic medium to provide complete protection, and the replacement is very simple, the centering ball structure 9 on the one hand provides additional support for the sealing collar 8, on the other hand is protected by the sealing collar 8 against the influence of the hydraulic medium, and provides a radial force to stabilize the movement of the piston rod 2.

Referring to fig. 1 and 2, in a preferred embodiment, a buffer rubber pad 13 is disposed between the piston head 4 and the elastic buffer structure 10, and the elastic buffer structure 10 includes an elastic washer 14 fixedly connected to the end cover 5, buffer springs 15 uniformly distributed on an end surface of the elastic washer 14, and an elastic retainer ring 16 disposed between the buffer springs 15 and the buffer rubber pad 13, so that the mechanical buffer structure can be fully utilized to achieve external buffering, and replacement is also very convenient because the mechanical buffer structure is not inside the main hydraulic cylinder body 1.

In a preferred embodiment, the damping cylinder 6 and the balancing cylinder 26 are provided with pumping devices, and the main hydraulic cylinder body 1, the damping cylinder 6 and the balancing cylinder 26 are all oil media, so that the necessary pumping force can be provided for the damping cylinder 6 and the balancing cylinder 26, the pumping devices are conventional pumping mechanisms, and therefore not described in more detail, and the pumping force of the main hydraulic cylinder body 1 is obtained from the mutual cooperation effect of the two external cylinder bodies, and the cooperation effect can be realized by utilizing the existing hydraulic system control mode.

In a preferred embodiment, as shown in fig. 1, the bellows cover structure 7 is a ring-shaped closed bellows-type folding structure, one end of the bellows cover structure is connected to the piston push plate 3, the other end of the bellows cover structure is connected to the sealing collar 8, the sealing collar 8 is provided with a channel communicating the inner cavity of the bellows cover structure 7 and the buffer cylinder 6, the channel is arranged on the end surface or the side surface of the sealing collar 8, the side wall of the sealing collar 8 is fixedly connected to the inner wall of the main cylinder body 1, the bellows cover structure 7 has the extensibility and the medium influence resistance which are not possessed by a spring, and therefore, the bellows cover structure is very suitable for being used as a buffer structure and can be implemented by referring to an organ or an air blowing device, and the channel of the sealing collar 8 is arranged as required, namely, the channel is implemented by an opening.

In a preferred embodiment, as shown in fig. 1 and 3, the centering and buffering ball structure 9 includes a centering spring 17 fixed on the inner wall 1 of the main cylinder body in a rotational symmetry manner, and a steel core ball 18 disposed at an end of the centering spring 17, wherein a hard rubber buffering layer 19 is sleeved on an outer wall of the steel core ball 18, and the centering spring 17 provides an elastic force during centering, the steel core ball 18 provides a supporting force, and the hard rubber buffering layer 19 provides a buffering force.

Referring to fig. 1, 4 and 5, in a preferred embodiment, the buffering bracket 11 is an L-shaped structure, and is connected to the outer wall of the buffering cylinder 6 through a fixing sleeve 20, and is fixedly connected to the outer wall of the main hydraulic cylinder body 1 through a bipod 21 at least at 1 position, so that the main hydraulic cylinder body 1 is rigidly connected to the buffering cylinder 6 externally, and has a good supporting structure, wherein the fixing sleeve 20 is a conventional sleeving structure and is provided with a clamping position for fixing the buffering cylinder 6.

Referring to fig. 1, 4 and 5, in a preferred embodiment, rail springs 22 are symmetrically disposed at two ends of the bottom of the buffer bracket 11 along the length direction of the buffer rail 12, crash pads 23 are disposed at the ends of the strokes of the two ends of the buffer rail 12, the rail springs 22 provide their own elastic buffer force, and the crash pads 23 provide external buffer force, which complement each other.

In a preferred embodiment, as shown in fig. 1, a limit collar 24 is disposed between the centering buffer ball structure 9 and the end of the main hydraulic cylinder 1, a seal ring 25 is disposed between the limit collar 24 and the end cover 5, and a heat insulation sleeve 27 is sleeved outside the main hydraulic cylinder 1, especially, the heat insulation sleeve 27 is used for preventing the temperature of the main hydraulic cylinder 1 from affecting the outside, so as to provide additional protection.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The balance cylinder device comprises a main hydraulic cylinder body, a piston rod penetrates through the main hydraulic cylinder body, a piston push disc matched with the inner diameter of the main hydraulic cylinder body is arranged on the rod body of the piston rod, the piston rod penetrates through the main hydraulic cylinder body and is provided with a piston head at one end, the balance cylinder device is characterized in that end covers are arranged at two ends of the main hydraulic cylinder body, the other end of the piston rod penetrates through the main hydraulic cylinder body and is connected with a buffer cylinder, an organ cover structure and a sealing lantern ring are symmetrically arranged on two sides of the piston push disc in the main hydraulic cylinder body, the organ cover structures on the two sides penetrate through respective sealing lantern rings and are connected with a buffer cylinder hydraulic circuit, the balance cylinder hydraulic circuit is connected with the balance cylinder, a centering buffer ball structure is arranged between the sealing lantern ring close to one side of the piston head and the end of the main hydraulic cylinder body, an elastic buffer structure is arranged between the piston head and, The balance cylinders are rigidly connected, the main hydraulic cylinder body is connected with the buffer cylinder through a buffer support, and the buffer support is erected in the buffer guide rail.

2. The balance cylinder device according to claim 1, wherein a buffer rubber pad is arranged between the piston head and the elastic buffer structure, and the elastic buffer structure comprises an elastic washer fixedly connected with the end cover, buffer springs uniformly distributed on the end surface of the elastic washer, and an elastic retainer ring arranged between the buffer springs and the buffer rubber pad.

3. The balance cylinder assembly of claim 1 wherein the dashpot and balance cylinder are each provided with pumping means and the main hydraulic cylinder block, dashpot and balance cylinder are each oil media.

4. The balance cylinder device according to claim 1, wherein the organ cover structure is an annular closed organ-type folding structure, one end of the organ cover structure is connected with the piston push disc, the other end of the organ cover structure is connected with the sealing sleeve ring, the sealing sleeve ring is provided with a channel which is communicated with an inner cavity of the organ cover structure and the buffer cylinder, the channel is arranged on the end face or the side face of the sealing sleeve ring, and the side wall of the sealing sleeve ring is fixedly connected with the inner wall of the main hydraulic cylinder body.

5. The balance cylinder assembly of claim 1, wherein the centering and cushioning ball structure comprises a centering spring rotationally symmetrically fixed on the inner wall of the main cylinder body, and a steel core ball disposed at an end of the centering spring, and an outer wall of the steel core ball is sleeved with a hard rubber cushioning layer.

6. The balance cylinder device according to claim 1, wherein the buffer bracket is of an L-shaped structure, is connected with the outer wall of the buffer cylinder through a fixing sleeve, and is fixedly connected with the outer wall of the main hydraulic cylinder body through at least 1 bipod.

7. The balance cylinder device according to claim 1, wherein rail springs are symmetrically arranged at two ends of the bottom of the buffer support along the length direction of the buffer guide rail, and anti-collision rubber pads are arranged at the ends of the strokes of the two ends of the buffer guide rail.

8. The balance cylinder device according to claim 1, wherein a limit collar is arranged between the centering buffer ball structure and the end of the main hydraulic cylinder body, a seal ring is arranged between the limit collar and the end cover, and a heat insulation sleeve is sleeved outside the main hydraulic cylinder body.