Adjustable hydraulic cylinder buffering device

Abstract

The utility model provides an adjustable hydraulic cylinder buffering device, and belongs to the technical field of hydraulic cylinders. Comprising a hydraulic cylinder body, a stabilizing mechanism is mounted below the hydraulic cylinder body, and an upper mounting frame is connected to the top end of the hydraulic cylinder body. By arranging the adjusting mechanism, when the hydraulic cylinder body works, a worker firstly starts the hydraulic cylinder body to enable a piston rod of the hydraulic cylinder body to stretch out by a certain distance, and then starts a double-end motor to enable first rotating rods connected to the two ends of the double-end motor to rotate; at the moment, first bevel gears arranged at one ends of the two first rotating rods can drive second bevel gears and second rotating rods in the middle to rotate, third bevel gears are arranged at the ends of the two second rotating rods, and two transmission lead screws can be driven to rotate synchronously under meshing transmission of the third bevel gears and fourth bevel gears; and at the moment, the two screw rod sliding sleeves which respectively act with the two screw rods can drive the respectively fixed guide mounting frames to be matched with the guide grooves for guiding to synchronously ascend.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to an adjustable hydraulic cylinder buffer device. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, producing linear reciprocating (or oscillating) motion. It features a simple structure and reliable operation. Using it to achieve reciprocating motion eliminates the need for a reduction gear, eliminates transmission backlash, and provides smooth motion. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] For example, patent CN207609640U discloses an adjustable buffer hydraulic cylinder, which includes a hydraulic cylinder body, a sound-absorbing layer is provided on the outer side of the hydraulic cylinder body, a handle is provided on the side wall of the sound-absorbing layer, a telescopic rod is provided at one end of the hydraulic cylinder body, a fixed block is provided at the end of the hydraulic cylinder body away from the telescopic rod, a ring is provided on the fixed block, and two fixed plates are provided at the edge of one end of the hydraulic cylinder body, which are positioned opposite to each other, a device cavity is provided in the middle of the two fixed plates, a threaded rod is provided on the side wall of the fixed plate, the threaded rod passes through the side wall of the fixed plate and extends into the device cavity, and a rotating wheel is provided at one end of the threaded rod.

[0004] During use of the above-mentioned adjustable buffer hydraulic cylinder, personnel are required to control the two wheels to rotate the corresponding screw rods in batches, so as to indirectly achieve the effect of lifting and lowering the two movable blocks. However, the operation is performed manually and the rotation of the screw rod cannot be accurately stopped, so it may cause the two movable blocks to stop at different heights. As a result, when the piston rod descends with the two connecting rods, there may be a height difference in contact between the two connecting rods and the elastic device on the corresponding movable block, which indirectly forms a different contact pressure and is easy to cause damage to the corresponding contact parts. Therefore, the present application provides an adjustable hydraulic cylinder buffer device to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide an adjustable hydraulic cylinder buffer device to solve the existing problem that personnel are required to control the two wheels to rotate the corresponding screw rods in batches, so as to indirectly achieve the effect of lifting and lowering the two movable blocks. However, the operation is performed manually and the rotation of the screw rod cannot be accurately stopped, so it may cause the two movable blocks to stop at different heights. As a result, when the piston rod descends with the two connecting rods, there may be a height difference between the two connecting rods and the elastic devices on the corresponding movable blocks, which indirectly forms a difference in contact pressure and is likely to cause damage to the corresponding contact parts.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A adjustable hydraulic cylinder buffer device comprises a hydraulic cylinder body, a stabilizing mechanism is installed below the hydraulic cylinder body, and the top of the hydraulic cylinder body is connected to an upper mounting frame, a piston rod is movably provided at the middle part of the top of the hydraulic cylinder body, an assembly frame is fixed above the upper mounting frame, and an adjusting mechanism is installed inside and above the assembly frame, pressure plates are fixed on both sides of the piston rod, a silencer sleeve is provided on the outside of the hydraulic cylinder body, the adjusting mechanism comprises two side mounting frames, and the two side mounting frames are fixed on both sides above the assembly frame, a linkage assembly is jointly installed inside the assembly frame and the two side mounting frames, the linkage assembly comprises two transmission screws, and a protection assembly is installed on each side of the two transmission screws.

[0008] Optionally, the linkage assembly includes a double-headed motor, and the double-headed motor is installed inside the assembly frame, the two end ends of the double-headed motor are connected to the first rotating rod, and the first bevel gear is fixed to the periphery of each end of the two first rotating rods, the second bevel gear is meshed with one side of the two first bevel gears, and the second rotating rod is fixed to the middle of the two second bevel gears, the third bevel gear is fixed to the periphery of one end of the two second rotating rods, and the fourth bevel gear is meshed with one side of the two third bevel gears, and a transmission screw is fixed to the middle of the two fourth bevel gears.

[0009] Optionally, two transmission screws are provided, and the two transmission screws are respectively arranged inside the two side mounting frames.

[0010] Optionally, the protection component includes a screw sleeve, and the screw sleeve is threadedly installed on the periphery of one side of the transmission screw, a guide frame is fixed to the outside of the screw sleeve, guide grooves are opened on both sides of the inside of the side frame, and buffer springs are fixedly installed on the upper and lower sides of the guide frame.

[0011] Optionally, the guide frame and the guide groove are connected in a movable guiding manner.

[0012] Optionally, the pressure plates are symmetrically fixed on both sides of the middle portion of the piston rod.

[0013] Optionally, the inner dimensions of the silencer sleeve match the outer dimensions of the hydraulic cylinder body.

[0014] Optionally, the stabilizing mechanism includes a base frame, and the base frame is fixed to the bottom of the hydraulic cylinder body, the four corners of the base frame are provided with screw grooves, and the middle of the screw groove is installed with a bolt rod.

[0015] Optionally, there are four groups of threaded grooves and bolt rods.

[0016] Optionally, a threaded connection is formed between the bolt rod and the screw-fitting groove.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] When the cam is in the state of being rotated, the two gears of the hydraulic cylinder are in the state of being rotated, and the two gears of the hydraulic cylinder are in the state of being rotated.

[0019] By setting up a stabilizing mechanism, the staff can pre-fix the hydraulic cylinder body in the working area through the screw grooves set at the four corners of the base frame and use a corresponding number of bolt rods to improve the stability of the hydraulic cylinder body during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and enable those skilled in the relevant art to make and use the invention.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the adjustable hydraulic cylinder buffer device;

[0022] Figure 2 It is a schematic diagram of the three-dimensional partial structure of the adjustable hydraulic cylinder buffer device;

[0023] Figure 3 This is a schematic diagram of the internal structure of the adjustable hydraulic cylinder buffer device assembly stand from a top view;

[0024] Figure 4 Adjustable hydraulic cylinder buffer device Figure 2 Schematic diagram of the structure at point A in the middle.

[0025] [reference numerals]

[0026] 1. Hydraulic cylinder body; 2. Stabilizing mechanism; 21. Base mounting frame; 22. Screw mounting groove; 23. Bolt rod; 3. Upper mounting frame; 4. Piston rod; 5. Assembly frame; 6. Adjusting mechanism; 61. Linkage assembly; 611. Double-headed motor; 612. First rotating rod; 613. First bevel gear; 614. Second bevel gear; 615. Second rotating rod; 616. Third bevel gear; 617. Fourth bevel gear; 618. Transmission screw; 62. Side mounting frame; 63. Protection assembly; 631. Screw sleeve; 632. Guide mounting frame; 633. Guide groove; 634. Buffer spring; 7. Pressure plate; 8. Silencer sleeve.

[0027] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, devices and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0028] The following describes in detail an adjustable hydraulic cylinder buffer device provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0029] It should be noted that references in the specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. In addition, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0030] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0031] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0032] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0033] like Figure 1 As shown, the embodiment of the present invention provides an adjustable hydraulic cylinder buffer device, including a hydraulic cylinder body 1, a stabilizing mechanism 2 is installed below the hydraulic cylinder body 1, and an upper mounting frame 3 is connected to the top of the hydraulic cylinder body 1, a piston rod 4 is movable in the middle of the top of the hydraulic cylinder body 1, an assembly frame 5 is fixed above the upper mounting frame 3, and an adjustment mechanism 6 is installed inside and above the assembly frame 5, and pressure plates 7 are fixed on both sides of the piston rod 4. The pressure plates 7 are symmetrically fixed on both sides of the middle of the piston rod 4. A silencer sleeve 8 is provided on the outside of the hydraulic cylinder body 1, and the internal size of the silencer sleeve 8 is the same as that of the hydraulic cylinder body. The external dimensions of the hydraulic cylinder body 1 match the external dimensions of the hydraulic cylinder body 1. The stabilizing mechanism 2 includes a base mounting frame 21, and the base mounting frame 21 is fixed to the bottom of the hydraulic cylinder body 1. The four corners of the base mounting frame 21 are provided with screw grooves 22, and the middle of the screw grooves 22 is installed with a bolt rod 23. There are four groups of screw grooves 22 and bolt rods 23. A threaded connection is formed between the bolt rod 23 and the screw groove 22. The staff pre-fixes the hydraulic cylinder body 1 in the operating area through the screw grooves 22 provided at the four corners of the base mounting frame 21 through the corresponding number of bolt rods 23, so as to improve the stability of the hydraulic cylinder body 1 during operation.

[0034] like Figures 1 to 4As shown, the adjustment mechanism 6 includes two side mounting frames 62, and the two side mounting frames 62 are fixed on both sides above the assembly frame 5. The assembly frame 5 and the two side mounting frames 62 are jointly installed with a linkage assembly 61. The linkage assembly 61 includes a double-headed motor 611, and the double-headed motor 611 is installed inside the assembly frame 5. The two ends of the double-headed motor 611 are connected to a first rotating rod 612, and a first bevel gear 613 is fixed to the periphery of each end of the two first rotating rods 612. A second bevel gear 614 is meshed with one side of the two first bevel gears 613, and a second rotating rod 615 is fixed to the middle of the two second bevel gears 614. A third bevel gear 616 is fixed to the periphery of one end of the rotating rod 615, and a fourth bevel gear 617 is meshed with one side of the two third bevel gears 616. A transmission screw 618 is fixed to the middle of the two fourth bevel gears 617. There are two transmission screws 618, and the two transmission screws 618 are respectively arranged inside the two side mounting frames 62. A protection component 63 is installed on each side of the two transmission screws 618. The protection component 63 includes a screw sleeve 631, and the screw sleeve 631 is threadedly installed on the periphery of one side of the transmission screw 618. A guide frame 632 is fixed to the outside of the screw sleeve 631, and the inside of the side mounting frame 62 is opened on both sides. There is a guide groove 633, and buffer springs 634 are fixedly installed on the upper and lower sides of the guide frame 632. The guide frame 632 and the guide groove 633 are connected in a movable guide manner. Secondly, when the hydraulic cylinder body 1 is working, the personnel first start the hydraulic cylinder body 1 to extend the piston rod 4 to a certain distance, and then start the double-headed motor 611 to rotate the first rotating rod 612 connected at both ends. At this time, the first bevel gear 613 provided at one end of the two first rotating rods 612 will be driven by the second bevel gear 614 and the middle second rotating rod 615 to rotate. Since the ends of the two second rotating rods 615 are provided with third bevel gears 616, the third bevel gear 61 6 is meshed with the fourth bevel gear 617 to drive the two transmission screws 618 to rotate synchronously. At this time, the two screw sleeves 631 acting on the two screws can carry their respective fixed guide frames 632 to cooperate with the guide groove 633 to rise synchronously. Since the upper and lower sides of the two guide frames 632 are installed with buffer springs 634, when the piston rod 4 is subjected to pressure during the subsequent operation of the hydraulic cylinder body 1, the pressure plates 7 provided on both sides of the piston rod 4 can be squeezed on the upper buffer spring 634 to compress and buffer it, thereby reducing the impact of the end of the piston rod 4 contacting the bottom end of the cylinder and the top end on the cylinder itself, thereby improving the safety of the hydraulic cylinder body 1.

[0035] The working principle of the technical solution provided by the utility model is as follows:

[0036] The staff has previously fixed the hydraulic cylinder body 1 in the working area through the screw grooves 22 provided at the four corners of the base frame 21 through the corresponding number of bolt rods 23, so as to improve the stability of the hydraulic cylinder body 1 during operation. Secondly, when the hydraulic cylinder body 1 is operating, the staff first starts the hydraulic cylinder body 1 to extend the piston rod 4 to a certain distance, and then starts the double-headed motor 611 to rotate the first rotating rod 612 connected at both ends. At this time, the first bevel gear 613 provided at one end of the two first rotating rods 612 will be driven by the second bevel gear 614 and the middle second rotating rod 615 to rotate. In addition, since the ends of the two second rotating rods 615 are provided with third bevel gears 616 , under the meshing transmission of the third bevel gear 616 and the fourth bevel gear 617, the two transmission screw rods 618 can be driven to rotate synchronously. At this time, the two screw rod sleeves 631 acting on the two screw rods can carry their respective fixed guide frames 632 to cooperate with the guide groove 633 to rise synchronously. Since the upper and lower edges of the two guide frames 632 are installed with buffer springs 634, when the piston rod 4 is subjected to pressure during the subsequent operation of the hydraulic cylinder body 1, the pressure plates 7 provided on both sides of the piston rod 4 can be squeezed on the upper buffer spring 634 to compress and buffer it, thereby reducing the impact of the end of the piston rod 4 contacting the bottom end of the cylinder and the top end on the cylinder itself, thereby improving the safety of the hydraulic cylinder body 1.

[0037] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. To provide a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments of this invention, but those skilled in the art will be able to fully understand this invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An adjustable hydraulic cylinder buffer device, characterized in that: It includes a hydraulic cylinder body, a stabilizing mechanism is installed at the bottom of the hydraulic cylinder body, and the top of the hydraulic cylinder body is connected to an upper mounting frame, a piston rod is movable in the middle of the top of the hydraulic cylinder body, an assembly frame is fixed above the upper mounting frame, and an adjustment mechanism is installed inside and above the assembly frame, pressure plates are fixed on both sides of the piston rod, a silencer sleeve is provided on the outside of the hydraulic cylinder body, the adjustment mechanism includes two side mounting frames, and the two side mounting frames are fixed on both sides above the assembly frame, a linkage assembly is jointly installed inside the assembly frame and the two side mounting frames, the linkage assembly includes two transmission screws, and a protection assembly is installed on each side of the two transmission screws.

2. The adjustable hydraulic cylinder buffer device according to claim 1, characterized in that: The linkage assembly includes a double-headed motor, and the double-headed motor is installed inside the assembly frame, the two end ends of the double-headed motor are connected to the first rotating rod, and a first bevel gear is fixed to the periphery of each end of the two first rotating rods, a second bevel gear is meshed with one side of the two first bevel gears, and a second rotating rod is fixed to the middle of the two second bevel gears, a third bevel gear is fixed to the periphery of one end of the two second rotating rods, and a fourth bevel gear is meshed with one side of the two third bevel gears, and a transmission screw is fixed to the middle of the two fourth bevel gears.

3. The adjustable hydraulic cylinder buffer device according to claim 2, characterized in that: There are two transmission screw rods, and the two transmission screw rods are respectively arranged inside the two side mounting frames.

4. The adjustable hydraulic cylinder buffer device according to claim 1, characterized in that: The protection component includes a screw sleeve, and the screw sleeve is threadedly installed on the periphery of one side of the transmission screw. A guide frame is fixed to the outside of the screw sleeve, and guide grooves are opened on both sides of the inside of the side frame. Buffer springs are fixedly installed on the upper and lower sides of the guide frame.

5. The adjustable hydraulic cylinder buffer device according to claim 4, characterized in that: The guide frame and the guide groove are connected in a movable guiding manner.

6. The adjustable hydraulic cylinder buffer device according to claim 1, characterized in that: The pressure plates are symmetrically fixed on both sides of the middle portion of the piston rod.

7. The adjustable hydraulic cylinder buffer device according to claim 1, characterized in that: The inner dimensions of the silencer sleeve match the outer dimensions of the hydraulic cylinder body.

8. The adjustable hydraulic cylinder buffer device according to claim 1, characterized in that: The stabilizing mechanism comprises a base frame fixed to the bottom of the hydraulic cylinder body; screw grooves are provided at four corners of the base frame, and a bolt rod is installed in the middle of the screw groove.

9. The adjustable hydraulic cylinder buffer device according to claim 8, characterized in that: There are four groups of screw-mounted grooves and bolt rods in total.

10. The adjustable hydraulic cylinder buffer device according to claim 8, characterized in that: A threaded connection is formed between the bolt rod and the screw-mounting groove.

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