Telescopic rotary hydraulic cylinder

Abstract

The utility model discloses a telescopic rotary hydraulic cylinder, and relates to the technical field of hydraulic cylinders. The fixing part comprises a base, a protective frame fixed at the top end of the base, a hydraulic cylinder arranged in the protective frame, and a piston rod matched with the hydraulic cylinder; the rotating component comprises a guide assembly arranged at the top end of the piston rod and a rotating assembly arranged at the top end of the guide assembly; wherein the hydraulic cylinder and the piston rod are matched with each other and serve as a driving source of the rotating component, when the piston rod moves, the rotating component is forced to move, the rotating component rotates in the moving process, and in the moving process of the rotating component, the guide component can well limit movement of the rotating component. Operation of the piston rod is controlled through operation of the hydraulic cylinder, then the bearing plate is made to rotate through mutual cooperation between the threaded rod and the threaded sleeve, and the problem that an existing hydraulic cylinder only has a linear stroke is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic rods, in particular to a telescopic rotary hydraulic cylinder. 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 hydraulic systems of various machines.

[0003] In the actual production process, many external components driven by hydraulic cylinders require not only linear travel but also rotational movement. However, the hydraulic cylinder itself cannot achieve rotational movement, so the hydraulic cylinder can only perform relatively simple straight-line operations, which limits the scope of application of the hydraulic cylinder.

[0004] To this end, we provide a telescopic rotary hydraulic cylinder to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a telescopic rotary hydraulic cylinder, which controls the operation of the piston rod through the operation of the hydraulic cylinder, and then utilizes the mutual cooperation between the threaded rod and the threaded sleeve to rotate the bearing plate, thereby solving the problem that the existing hydraulic cylinder only has a linear stroke.

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

[0007] The utility model is a telescopic rotary hydraulic cylinder, comprising a fixed component, including a base, a protective frame fixed to the top of the base, a hydraulic cylinder arranged inside the protective frame, and a piston rod adapted to the hydraulic cylinder;

[0008] The rotating component includes a guide assembly provided at the top end of the piston rod and a rotating assembly provided at the top end of the guide assembly;

[0009] Among them, the hydraulic cylinder and the piston rod cooperate with each other as the driving source of the rotating component. When the piston rod moves, it will force the rotating component to move as well, and the rotating component will also rotate during the movement. During the movement of the rotating component, the guide component can well limit the movement of the rotating component, so that the rotating component can operate stably.

[0010] The utility model is further configured such that the guide assembly includes a base plate arranged at the top end of the piston rod, a fixing screw arranged inside the base plate, a guide rod arranged at the top end of the base plate, and a linear bearing arranged inside the top end of the protective frame.

[0011] The utility model is further configured such that the fixing screw passes through the bottom end of the base plate and is threadedly connected to the piston rod, the linear bearing is fixedly connected to the protective frame, and the guide rod is slidably connected to the inside of the linear bearing.

[0012] The utility model is further configured such that the rotating assembly includes a threaded rod arranged at the top of the base plate, a threaded sleeve fixed to the top of the protective frame, and a supporting plate fixed to the top of the threaded rod; wherein the threaded rod is threadedly connected to the threaded sleeve, the supporting plate does not contact the guide rod, and the movement of both will not be hindered.

[0013] The present invention is further configured to further include a lubricating component, which includes a receiving component arranged inside the rotating component, a bearing component arranged inside the receiving component, and a lubricating component arranged inside the bearing component.

[0014] The present invention is further configured such that the accommodating assembly includes an accommodating chamber opened inside the threaded sleeve, an adsorption sponge arranged inside the accommodating chamber, and an oil filling port penetrating the top end of the threaded sleeve.

[0015] The utility model is further configured such that the bearing assembly includes a bearing sleeve arranged on the inner side of the threaded sleeve, a through hole opened at the end of the bearing sleeve, a rubber ring arranged at the other end of the bearing sleeve, and a hollow plate fixed inside the through hole.

[0016] The utility model is further configured such that the lubrication assembly includes a ball disposed inside the bearing sleeve, a connecting rod disposed on one side of the ball, a retaining plate fixed to an end of the connecting rod, and a spring disposed between the retaining plate and the hollow plate;

[0017] The connecting rod is slidably connected to the hollow plate, one end of the connecting rod extends to the outside of the through hole, and the connecting rod is fixedly connected to the retaining plate.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model first starts the hydraulic cylinder through the corresponding controller, and then controls the movement of the piston rod. During the movement of the piston rod, the base plate and the threaded rod will be driven to move. Since the threaded rod is threadedly connected to the threaded sleeve, and the threaded sleeve is fixed to the top of the protective frame, the threaded rod can rotate. In addition, a plurality of guide rods are connected to the top of the base plate, which cooperate with the linear bearing to achieve the guiding effect, ensuring that the threaded rod can move stably and prevent vibration.

[0020] 2. In the process of rotation of the threaded rod, the utility model will drive the ball to rotate. Since the ball is an irregular sphere, that is, an ellipsoid, during the rotation of the ball, it will squeeze the connecting rod, thereby driving the stop plate to move, so that the stop plate is separated from the through hole, and squeezes the adsorption sponge, so that the lubricating ball soaked in the adsorption sponge is squeezed out and enters the interior of the bearing sleeve through the through hole. Finally, after being adsorbed by the ball, it is smeared on the surface of the threaded rod to achieve the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of a telescopic rotary hydraulic cylinder.

[0023] Figure 2 The figure is a schematic diagram of the exploded structure of a telescopic rotary hydraulic cylinder.

[0024] Figure 3 The figure is a schematic diagram of the overall structure of a lubricating component for a telescopic rotary hydraulic cylinder.

[0025] Figure 4 This is a schematic diagram of the overall structure of the containment assembly for lubricating parts.

[0026] Figure 5 Schematic diagram of the exploded structure of the load-bearing assembly and lubrication assembly for lubricated parts.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 100, fixed component; 101, base; 102, protective frame; 103, hydraulic cylinder; 104, piston rod; 200, rotating component; 201, guide assembly; 201a, base plate; 201b, fixing screw; 201c, guide rod; 201d, linear bearing; 202, rotating assembly; 202a, threaded rod; 202b, threaded sleeve; 202c, bearing plate; 300, lubricating component; 301, accommodating assembly; 301a, accommodating chamber; 301b, adsorption sponge; 301c, oil filling port; 302, bearing assembly; 302a, bearing sleeve; 302b, through hole; 302c, rubber ring; 302d, hollow plate; 303, lubricating assembly; 303a, ball; 303b, connecting rod; 303c, baffle plate; 303d, spring. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1-3 The utility model is a telescopic rotary hydraulic cylinder, comprising a fixed component 100, including a base 101, a protective frame 102 fixed to the top of the base 101, a hydraulic cylinder 103 disposed inside the protective frame 102, and a piston rod 104 adapted to the hydraulic cylinder 103;

[0032] The rotating component 200 includes a guide assembly 201 disposed at the top end of the piston rod 104 and a rotating assembly 202 disposed at the top end of the guide assembly 201;

[0033] Among them, the hydraulic cylinder 103 and the piston rod 104 cooperate with each other as the driving source of the rotating part 200. When the piston rod 104 moves, it will force the rotating component 202 to move as well, and the rotating component 202 will also rotate during the movement. During the movement of the rotating component 202, the guide component 201 can well limit the movement of the rotating component 202, so that the rotating component 202 can operate stably.

[0034] Specifically, the guide assembly 201 includes a base plate 201a arranged at the top of the piston rod 104, a fixing screw 201b arranged inside the base plate 201a, a guide rod 201c arranged at the top of the base plate 201a, and a linear bearing 201d arranged inside the top of the protective frame 102. The fixing screw 201b passes through the bottom end of the base plate 201a and is threadedly connected to the piston rod 104. The linear bearing 201d is fixedly connected to the protective frame 102, and the guide rod 201c is slidably connected to the inside of the linear bearing 201d.

[0035] Furthermore, the rotating assembly 202 includes a threaded rod 202a arranged at the top of the base plate 201a, a threaded sleeve 202b fixed to the top of the protective frame 102, and a supporting plate 202c fixed to the top of the threaded rod 202a; wherein, the threaded rod 202a is threadedly connected to the threaded sleeve 202b, and the supporting plate 202c does not contact the guide rod 201c, and the movement of each of them will not be hindered.

[0036] The operation process of this embodiment is as follows: first, the hydraulic cylinder 103 is started through the corresponding controller, and then the hydraulic cylinder 103 drives the piston rod 104 to move. Under the action of the piston rod 104, the threaded rod 202a is also indirectly pushed. Since the threaded rod 202a is threadedly connected to the threaded sleeve 202b, the threaded rod 202a will also rotate while moving, thereby solving the problem that the hydraulic cylinder cannot rotate. In addition, when the piston rod 104 moves, it will also drive the base plate 201a to move, and a plurality of guide rods 201c are fixed to the top of the base plate 201a. Under the action of the linear bearing 201d, the guide rod 201c can only make a linear motion, thereby achieving the function of guiding the threaded rod 202a to ensure that the threaded rod 202a can operate stably.

[0037] Example 2

[0038] See also Figure 1-5 On the basis of Example 1, it further includes a lubrication component 300, which includes a accommodating component 301 arranged inside the rotating component 202, a bearing component 302 arranged inside the accommodating component 301, and a lubrication component 303 arranged inside the bearing component 302.

[0039] Specifically, the accommodating component 301 includes an accommodating chamber 301a opened inside the threaded sleeve 202b, an adsorption sponge 301b disposed inside the accommodating chamber 301a, and an oil filling port 301c penetrating the top of the threaded sleeve 202b.

[0040] Furthermore, the bearing assembly 302 includes a bearing sleeve 302a disposed on the inner side of the threaded sleeve 202b, a through hole 302b defined at the end of the bearing sleeve 302a, a rubber ring 302c disposed at the other end of the bearing sleeve 302a, and a hollow plate 302d fixed inside the through hole 302b. The lubrication assembly 303 includes a ball 303a disposed inside the bearing sleeve 302a, a connecting rod 303b disposed on one side of the ball 303a, a stop plate 303c fixed to the end of the connecting rod 303b, and a spring 303d disposed between the stop plate 303c and the hollow plate 302d.

[0041] The connecting rod 303b is slidably connected to the hollow plate 302d, one end of the connecting rod 303b extends to the outside of the through hole 302b, and the connecting rod 303b is fixedly connected to the blocking plate 303c.

[0042] The operation process of this embodiment is as follows: first, the threaded rod 202a is in direct contact with the ball 303a. When the threaded rod 202a rotates, the friction between the two will drive the ball 303a to move. The ball 303a is designed as an ellipsoid. Therefore, during the rotation of the ball 303a, it will squeeze the connecting rod 303b and push the stop plate 303c to one side of the principle through hole 302b, and then squeeze the adsorption sponge 301b, so that the lubricating liquid infiltrated in the adsorption sponge 301b is squeezed out and enters the interior of the bearing sleeve 302a through the through hole 302b, and is finally adsorbed by the ball 303a and smeared on the threaded rod 20 2a's surface, thereby achieving the purpose of lubricating the threaded rod 202a. In addition, when other cross-sections of the ball 303a that are closer to the center contact the connecting rod 303b, the compressed spring 303d will have a reset effect to pull the retaining plate 303c back and close to the through hole 302b, so that no more lubricating liquid will enter the interior of the bearing sleeve 302a. In addition, the retaining plate 303c is separated from the adsorption sponge 301b. At this time, the adsorption sponge 301b will not be squeezed. The adsorption sponge 301b will re-absorb the lubricating liquid that has been squeezed out and has not yet entered the interior of the bearing sleeve 302a, thereby achieving the purpose of recovering the lubricating liquid and thus preventing the waste of lubricating liquid.

[0043] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0044] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A telescopic rotary hydraulic cylinder, characterized in that: include, A fixing component (100) includes a base (101), a protective frame (102) fixed to the top of the base (101), a hydraulic cylinder (103) disposed inside the protective frame (102), and a piston rod (104) adapted for the hydraulic cylinder (103); The rotating component (200) comprises a guide assembly (201) arranged at the top end of the piston rod (104), and a rotating assembly (202) arranged at the top end of the guide assembly (201); The hydraulic cylinder (103) and the piston rod (104) cooperate with each other and serve as a driving source for the rotating component (200). When the piston rod (104) moves, it forces the rotating component (202) to move as well. The rotating component (202) also rotates during the movement. During the movement of the rotating component (202), the guide component (201) can effectively limit the movement of the rotating component (202), so that the rotating component (202) can operate stably.

2. A telescopic rotary hydraulic cylinder according to claim 1, characterized in that: The guide assembly (201) comprises a base plate (201a) arranged at the top end of the piston rod (104), a fixing screw (201b) arranged inside the base plate (201a), a guide rod (201c) arranged at the top end of the base plate (201a), and a linear bearing (201d) arranged inside the top end of the protective frame (102).

3. The telescopic rotary hydraulic cylinder according to claim 2, characterized in that: The fixing screw (201b) passes through the bottom end of the base plate (201a) and is threadedly connected to the piston rod (104); the linear bearing (201d) is fixedly connected to the protective frame (102); and the guide rod (201c) is slidably connected to the interior of the linear bearing (201d).

4. The telescopic rotary hydraulic cylinder according to claim 3, characterized in that: The rotating assembly (202) comprises a threaded rod (202a) arranged at the top of the base plate (201a), a threaded sleeve (202b) fixed to the top of the protective frame (102), and a supporting plate (202c) fixed to the top of the threaded rod (202a); wherein the threaded rod (202a) and the threaded sleeve (202b) are threadedly connected, and the supporting plate (202c) does not contact the guide rod (201c), so that the movement of both will not be hindered.

5. The telescopic rotary hydraulic cylinder according to claim 4, characterized in that: It also includes a lubricating component (300), which includes a containing component (301) arranged inside the rotating component (202), a bearing component (302) arranged inside the containing component (301), and a lubricating component (303) arranged inside the bearing component (302).

6. The telescopic rotary hydraulic cylinder according to claim 5, characterized in that: The accommodating component (301) comprises an accommodating chamber (301a) opened inside the threaded sleeve (202b), an adsorption sponge (301b) arranged inside the accommodating chamber (301a), and an oil filling port (301c) penetrating the top end of the threaded sleeve (202b).

7. The telescopic rotary hydraulic cylinder according to claim 6, characterized in that: The bearing assembly (302) comprises a bearing sleeve (302a) arranged on the inner side of the threaded sleeve (202b), a through hole (302b) opened at the end of the bearing sleeve (302a), a rubber ring (302c) arranged at the other end of the bearing sleeve (302a), and a hollow plate (302d) fixed inside the through hole (302b).

8. The telescopic rotary hydraulic cylinder according to claim 7, characterized in that: The lubrication assembly (303) comprises a ball (303a) disposed inside the bearing sleeve (302a), a connecting rod (303b) disposed on one side of the ball (303a), a retaining plate (303c) fixed to the end of the connecting rod (303b), and a spring (303d) disposed between the retaining plate (303c) and the hollow plate (302d); The connecting rod (303b) is slidably connected to the hollow plate (302d), one end of the connecting rod (303b) extends to the outside of the through hole (302b), and the connecting rod (303b) is fixedly connected to the retaining plate (303c).

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