Hydraulic cylinder with guiding function

Abstract

The utility model discloses a hydraulic oil cylinder with guiding function, including cylinder barrel, the inside sliding joint of cylinder barrel has piston rod, and the front end of piston rod is worn out the inside of cylinder barrel and is equipped with the connecting frame, still includes guiding mechanism, guiding mechanism: it includes guide ring, turning plate no.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically a hydraulic cylinder with a guiding function. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy to achieve linear reciprocating motion or oscillating motion. Its core function is to drive a piston through the pressure of a sealed hydraulic fluid, outputting thrust or torque. Among the various parts of a hydraulic cylinder, the guide ring is a key component that ensures the linear movement of the piston rod and prevents uneven wear. It guides the piston rod's movement through high-precision fitting and simultaneously supports the rod body to withstand radial forces. In the prior art, the authorized publication number CN 210715363... U proposes a hydraulic cylinder with a guiding function, including a cylinder body, a piston, a piston rod, and a guide ring. One end of the cylinder body has a piston channel, and the other end has a piston rod channel, which are interconnected. The piston is housed within the piston channel, and one end of the piston rod is connected to the piston and correspondingly positioned within the piston rod channel. The guide ring is housed within the piston rod channel and correspondingly positioned on the outer wall of the piston rod. A front end cap and a rear end cap are respectively provided at opposite ends of the cylinder body. While this provides guidance for the hydraulic cylinder, in the extended state, the extended and retractable ends of the hydraulic cylinder are easily damaged by radial forces, resulting in a short service life. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a hydraulic cylinder with a guiding function. The extension and retraction of the hydraulic cylinder causes the included angle of rotating plate one and rotating plate two to change, so that the hydraulic cylinder, rotating plate one and rotating plate two are in a triangular state, which has higher strength, supports the radial force of the extension and retraction end of the hydraulic cylinder, and improves the service life of the hydraulic cylinder. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic cylinder with a guiding function, comprising a cylinder barrel, a piston rod slidably connected inside the cylinder barrel, the front end of the piston rod extending out of the cylinder barrel and provided with a connecting frame, and a guiding mechanism; The guiding mechanism includes a guide ring, a first rotating plate, a second rotating plate, and a sliding plate. The guide ring is disposed on the outer arc surface of the piston rod and is longitudinally slidably connected to the inside of the cylinder. The first rotating plate is rotatably connected to the outer arc surface of the first cylinder on the side of the connecting frame. The sliding plate is longitudinally slidably connected to the outer arc surface of the cylinder. The outer arc surface of the second cylinder on the side of the sliding plate is rotatably connected to the second rotating plate. The front end of the second rotating plate is rotatably connected to the rear end of the first rotating plate corresponding to the longitudinal position through a rotating shaft. The extension and retraction of the hydraulic cylinder causes the included angle of the first rotating plate and the second rotating plate to change, so that the hydraulic cylinder, the first rotating plate, and the second rotating plate form a triangular state, which has higher strength, supports the radial force of the extension and retraction end of the hydraulic cylinder, and improves the service life of the hydraulic cylinder.

[0005] Furthermore, the guiding mechanism also includes a pinion, a short rack plate, a large gear, and a long rack plate. The pinions are rotatably connected to the side of the cylinder via rotating shafts. The outer arc surface of the rotating shaft of each pinion is provided with a large gear. The short rack plates are respectively disposed on the side of the connecting frame and mesh with adjacent pinions. The long rack plates are respectively disposed at the left and right ends of the slide plate and mesh with adjacent large gears, so that the connecting frame and the slide plate move synchronously.

[0006] Furthermore, the guiding mechanism also includes a protective shell, which is respectively disposed on the left and right sides of the cylinder. The rotating shaft of the pinion is rotatably connected between the left and right inner walls of the protective shell. The pinion and the large gear are respectively located inside the protective shell, providing protection for the pinion and the large gear.

[0007] Furthermore, the pinion and gear have the same number of teeth, but the module of the pinion is smaller than that of the gear, so that the moving speed of the slide is greater than that of the connecting frame.

[0008] Furthermore, the connecting frame is provided with fixing frames on both the left and right sides, and short rack plates are respectively provided on the rear side of the fixing frames. The lower end of the rear side of the fixing frame is provided with a clearance groove that cooperates with the long rack plate to provide support for fixing the short rack plate.

[0009] Furthermore, rubber sleeves are provided between the rear side of the fixing frame and the front end of the protective shell, and between the rear end of the protective shell and the front surface of the slide plate, respectively. The short rack plate and the long rack plate are located inside the rubber sleeves, providing protection for the short rack plate and the long rack plate.

[0010] Furthermore, guide posts are respectively provided between the front and rear cylinder heads of the cylinder barrel, and the guide posts are longitudinally slidably connected to the guide holes on the surface of the slide plate to provide guidance and support for the movement of the slide plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This hydraulic cylinder with guiding function has the following advantages: The extension and retraction of the hydraulic cylinder causes the included angle between rotating plate one and rotating plate two to change, so that the hydraulic cylinder, rotating plate one and rotating plate two form a triangular state, which has higher strength, supports the radial force of the extension and retraction end of the hydraulic cylinder, and improves the service life of the hydraulic cylinder. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view sectional diagram of the overall device of this utility model; Figure 3 This is a side view of the guide mechanism of this utility model.

[0013] In the diagram: 1. Cylinder, 2. Piston rod, 3. Connecting frame, 4. Guide mechanism, 41. Guide ring, 42. Rotating plate one, 43. Rotating plate two, 44. Slide plate, 45. Protective shell, 46. Small gear, 47. Short rack plate, 48. Large gear, 49. Long rack plate, 5. Fixing frame, 6. Clearance groove, 7. Rubber sleeve, 8. Guide column. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-3 This embodiment provides a technical solution: a hydraulic cylinder with a guiding function, including a cylinder barrel 1, which is made of seamless steel pipe or high-strength steel and together with the cylinder head forms a sealed oil chamber. A piston rod 2 is slidably connected inside the cylinder barrel 1. The extension and retraction of the hydraulic cylinder is realized by the piston at the rear end of the piston rod 2 sliding inside the cylinder barrel 1. The front end of the piston rod 2 extends out of the cylinder barrel 1 and is provided with a connecting frame 3 to facilitate the connection of the front end of the piston rod 2 with external equipment. It also includes a guiding mechanism 4. Guide mechanism 4 includes a guide ring 41, a first rotating plate 42, a second rotating plate 43, and a slide plate 44. The guide ring 41 is disposed on the outer arc surface of the piston rod 2 and is longitudinally slidably connected to the inside of the cylinder 1. The first rotating plate 42 is rotatably connected to the outer arc surface of the first cylinder on the side of the connecting frame 3. The slide plate 44 is longitudinally slidably connected to the outer arc surface of the second cylinder on the side of the slide plate 44. The second rotating plate 43 is rotatably connected to the outer arc surface of the second cylinder on the side of the slide plate 44. The front end of the second rotating plate 43 is rotatably connected to the rear end of the first rotating plate 42 corresponding to the longitudinal position via a rotating shaft. With the connection of the transmission components, the rotating plate 42 moves forward synchronously with the connecting frame 3. At the same time, the moving speed of the sliding plate 44 is greater than that of the connecting frame 3, causing relative movement between the connecting frame 3 and the sliding plate 44. This pushes the angle between the rotating plate 42 and the rotating plate 43 rotatably connected to its rear end to increase. When the hydraulic cylinder stops extending and retracting, the angle between the rotating plate 42 and the rotating plate 43 is fixed. Through the cooperation of the rotating plate 42 and the rotating plate 43, the radial force on the extension and retraction end of the hydraulic cylinder is supported, providing external guide support for the extension and retraction end of the hydraulic cylinder. The guide mechanism 4 also includes a pinion 46, a short rack plate 47, a large gear 48, and a long rack plate 49. The pinion 46 is rotatably connected to the side of the cylinder 1 via a rotating shaft. The outer arc surface of the rotating shaft of the pinion 46 is provided with a large gear 48. The short rack plates 47 are respectively disposed on the side of the connecting frame 3 and are meshed with the adjacent pinion 46. The long rack plates 49 are respectively disposed at the left and right ends of the slide plate 44 and are meshed with the adjacent large gear 48. When the piston rod 2 moves forward, under the connection of the fixed frame 5, it will drive the short rack plates 47 to move forward synchronously. Through the meshing connection between the short rack plates 47 and the pinion 46, the pinion 46 drives the large gear 48 coaxial with it to rotate. Through the meshing connection between the large gear 48 and the long rack plate 49, the long rack plate 49 drives the slide plate 44 to move forward synchronously. The guide mechanism 4 also includes a protective shell 45, which is respectively disposed on the left and right sides of the cylinder 1. The rotating shaft of the pinion 46 is rotatably connected between the left and right inner walls of the protective shell 45. The pinion 46 and the large gear 48 are respectively located inside the protective shell 45, providing protection for the pinion 46 and the large gear 48. The pinion 46 and the gear 48 have the same number of teeth. The module of the pinion 46 is smaller than that of the gear 48, making the diameter of the pinion 46 smaller than that of the gear 48. When the pinion 46 and the gear 48 rotate at the same amplitude, the speed at which the connecting frame 3 moves is less than the speed at which the slide plate 44 moves. The left and right sides of the connecting frame 3 are provided with fixing frames 5, and the short rack plates 47 are respectively set on the rear side of the fixing frames 5. The lower end of the rear side of the fixing frame 5 is provided with a clearance groove 6 that cooperates with the long rack plate 49 to provide support for the connection between the short rack plate 47 and the connecting frame 3. Rubber sleeves 7 are provided between the rear side of the fixing frame 5 and the front end of the protective shell 45, and between the rear end of the protective shell 45 and the front surface of the slide plate 44. The short rack plate 47 and the long rack plate 49 are located inside the rubber sleeves 7, providing protection for the short rack plate 47 and the long rack plate 49. Guide posts 8 are provided between the front and rear cylinder heads of cylinder 1. The guide posts 8 are longitudinally slidably connected to the guide holes on the surface of slide plate 44, providing guidance and support for the longitudinal movement of slide plate 44.

[0016] The working principle of the hydraulic cylinder with guiding function provided by this utility model is as follows: During use, hydraulic oil provides power for the sliding of the piston rod 2 inside the cylinder 1. When the piston rod 2 moves forward, under the connection of the fixed frame 5, it drives the short rack plate 47 to move forward synchronously. Through the meshing connection between the short rack plate 47 and the pinion 46, the pinion 46 drives the coaxial large gear 48 to rotate. Through the meshing connection between the large gear 48 and the long rack plate 49, the long rack plate 49 drives the sliding plate 44 to move forward synchronously. Because the pinion 46 and the large gear 48 have the same number of teeth and the module of the pinion 46 is smaller than the module of the large gear 48, the pinion 46... With a diameter smaller than that of the large gear 48, when the small gear 46 and the large gear 48 rotate at the same amplitude, the connecting frame 3 moves at a speed less than that of the sliding plate 44. Relative movement occurs between the connecting frame 3 and the sliding plate 44, increasing the angle between the rotating plate 1 42 and the rotating plate 2 43 connected to its rear end. When the hydraulic cylinder stops extending and retracting, the angle between the rotating plate 1 42 and the rotating plate 2 43 is fixed. Through the cooperation of the rotating plate 1 42 and the rotating plate 2 43, the radial force on the extension end of the hydraulic cylinder is supported, providing external guide support for the extension end of the hydraulic cylinder. Similarly, when the hydraulic cylinder retracts, the angle between the rotating plate 1 42 and the rotating plate 2 43 will decrease, reducing the space occupied by the hydraulic cylinder.

[0017] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hydraulic cylinder with a guiding function, comprising a cylinder barrel (1), wherein a piston rod (2) is slidably connected inside the cylinder barrel (1), and the front end of the piston rod (2) extends out of the cylinder barrel (1) and is provided with a connecting bracket (3), characterized in that: It also includes a guiding mechanism (4); Guide mechanism (4): It includes guide ring (41), rotating plate one (42), rotating plate two (43) and sliding plate (44). The guide ring (41) is set on the piston outer arc surface of the piston rod (2). The guide ring (41) is longitudinally slidably connected to the inside of the cylinder (1). The rotating plate one (42) is rotatably connected to the cylindrical outer arc surface on the side of the connecting frame (3). The sliding plate (44) is longitudinally slidably connected to the outer arc surface of the cylinder (1). The cylindrical outer arc surface on the side of the sliding plate (44) is rotatably connected to the rotating plate two (43). The front end of the rotating plate two (43) is rotatably connected to the rear end of the rotating plate one (42) corresponding to the longitudinal position through a rotating shaft.

2. A hydraulic cylinder with guiding function according to claim 1, characterized in that: The guiding mechanism (4) also includes a pinion (46), a short rack plate (47), a large gear (48), and a long rack plate (49). The pinion (46) is rotatably connected to the side of the cylinder (1) via a rotating shaft. The outer arc surface of the rotating shaft of the pinion (46) is provided with a large gear (48). The short rack plates (47) are respectively set on the side of the connecting frame (3). The short rack plates (47) are respectively meshed with the adjacent pinion (46). The long rack plates (49) are respectively set on the left and right ends of the slide plate (44). The long rack plates (49) are respectively meshed with the adjacent large gear (48).

3. A hydraulic cylinder with guiding function according to claim 2, characterized in that: The guide mechanism (4) also includes a protective shell (45), which is respectively disposed on the left and right sides of the cylinder (1). The rotating shaft of the small gear (46) is rotatably connected between the left and right inner walls of the protective shell (45). The small gear (46) and the large gear (48) are respectively located inside the protective shell (45).

4. A hydraulic cylinder with guiding function according to claim 2, characterized in that: The pinion (46) and the gear (48) have the same number of teeth, but the module of the pinion (46) is smaller than that of the gear (48).

5. A hydraulic cylinder with guiding function according to claim 3, characterized in that: The connecting frame (3) is provided with a fixing frame (5) on both the left and right sides. Short rack plates (47) are respectively provided on the rear side of the fixing frame (5). The lower end of the rear side of the fixing frame (5) is provided with a clearance groove (6) that cooperates with the long rack plate (49).

6. A hydraulic cylinder with guiding function according to claim 5, characterized in that: Rubber sleeves (7) are provided between the rear side of the fixing frame (5) and the front end of the protective shell (45), and between the rear end of the protective shell (45) and the front surface of the sliding plate (44). The short toothed plate (47) and the long toothed plate (49) are located inside the rubber sleeves (7).

7. A hydraulic cylinder with guiding function according to claim 1, characterized in that: Guide posts (8) are provided between the front and rear cylinder heads of the cylinder (1), and the guide posts (8) are longitudinally slidably connected to the guide holes on the surface of the slide plate (44).

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