Telescopic rotary hydraulic cylinder
By setting oil ports and driving fluid channels on the outer sleeve of the hydraulic cylinder, using the driving fluid to push the impeller and the fixing ring plate, the inner sleeve of the hydraulic cylinder can rotate, and through the corrugated structure and linkage rod, the piston and telescopic rod can be telescopic and retractable while rotating, solving the problem that traditional hydraulic cylinders cannot achieve rotational action, and simplification and stability of rotation and retractable movements are achieved.
Patent Information
- Application Number
- CN202421632682.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-11
AI Technical Summary
The inability of traditional hydraulic cylinders to achieve rotational action leads to the need to add complex hydraulic systems and auxiliary mechanisms in applications that require rotation and telescopic movement, which increases the structural complexity and cost of the system.
A telescopic rotating hydraulic cylinder is designed. By setting an oil port and a driving fluid channel on the outer sleeve of the hydraulic cylinder, the driving fluid is used to push the impeller and the fixing ring plate, so that the inner sleeve of the hydraulic cylinder can rotate, and through the corrugated structure and linkage rod, the piston and the telescopic rod can be telescopic and motion while rotating.
The rotation and telescopic movement of the hydraulic cylinder is realized, the system structure is simplified, the cost is reduced, and the stability and convenience of the movement are improved.
Smart Images
Figure CN222823469U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a telescopic rotating hydraulic cylinder. Background Art
[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, the movement is smooth, and it is widely used in the hydraulic systems of various machines. The traditional hydraulic cylinder includes a cylinder body, a piston and a piston rod. The cylinder body is provided with oil inlet and outlet ports. The movement of the piston and the piston rod is achieved through the inlet and outlet of the hydraulic oil, and various control functions are achieved through external components. The movement of this hydraulic rod is all linear motion, and the driven external components also move linearly. In the actual production process, many external components driven by the hydraulic cylinder require not only linear travel, but also rotational motion, but the hydraulic cylinder itself cannot achieve rotational motion. In order to meet the needs of actual production, the commonly used method is to achieve the rotational motion of the hydraulic cylinder by adding other hydraulic systems, or using valve groups and other auxiliary mechanisms. The overall hydraulic system has a complex structure, resulting in its high cost. For this reason, we propose a telescopic rotating hydraulic cylinder. Utility Model Content
[0003] The utility model provides a telescopic rotating hydraulic cylinder, which solves the problems raised by the above background technology.
[0004] To achieve the above purpose, the utility model is implemented through the following technical scheme: a telescopic rotating hydraulic cylinder, including a hydraulic cylinder outer sleeve, an oil port for circulating driving fluid is opened on the hydraulic cylinder outer sleeve, the oil port is communicated with the interior of the hydraulic cylinder outer sleeve, and a movable piston is arranged in the hydraulic cylinder outer sleeve, a telescopic rod is fixed to one side of the piston, and the telescopic rod is movably connected to one end of the hydraulic cylinder outer sleeve, a movably rotating hydraulic cylinder inner sleeve is sleeved on the interior of the hydraulic cylinder outer sleeve, the inner side of the hydraulic cylinder inner sleeve is an annular corrugated structure, the piston is located inside the hydraulic cylinder inner sleeve and corresponds to the corrugated structure on the hydraulic cylinder inner sleeve, and driven impellers are arranged at both ends of the hydraulic cylinder outer sleeve, the impeller is connected to a fixed ring plate, and the fixed ring plate can drive the hydraulic cylinder inner sleeve to rotate.
[0005] Optionally, transfer grooves are provided in both ends of the outer sleeve of the hydraulic cylinder, a driving fluid channel is provided on the outer sleeve of the hydraulic cylinder, and the oil port is connected to the transfer groove through the driving fluid channel, and the driving fluid channel is tangentially connected to the transfer groove.
[0006] Optionally, the impeller is located inside the transfer trough, and the fixed ring plate is movably connected to the outer sleeve of the hydraulic cylinder, and a through opening is opened on the outer sleeve of the hydraulic cylinder, and the through opening is connected to the transfer trough.
[0007] Optionally, a connecting plate is fixed to one side of the impeller and the fixed ring plate, and the connecting plate is movably connected to the outer sleeve of the hydraulic cylinder.
[0008] Optionally, a driving ring plate is fixed to the inner side of the connecting plate and rotates therewith, and the inner side of the driving ring plate is a ring-shaped corrugated structure, and its telescopic rod is movably connected to the inner side of the driving ring plate and corresponds to the corrugated structure on the driving ring plate.
[0009] Optionally, the driving fluid channels at both ends of the outer sleeve of the hydraulic cylinder are designed in opposite directions, and one end of the driving ring plate extends into the interior of the inner sleeve of the hydraulic cylinder and a linkage rod is fixed to the outside of one end of the inner sleeve of the hydraulic cylinder, and one end of the linkage rod is fixed to the inner side of the inner sleeve of the hydraulic cylinder.
[0010] The utility model has the following beneficial effects:
[0011] 1. The telescopic rotary hydraulic cylinder, in the process of driving fluid flowing into the inner sleeve of the hydraulic cylinder, its driving fluid can push the impeller, and then the fixed ring plate can be rotated, and finally the inner sleeve of the hydraulic cylinder is driven to rotate, and then the piston can be rotated under the drive of the inner sleeve of the hydraulic cylinder. After the driving fluid enters the inner sleeve of the hydraulic cylinder, it pushes the piston to move, and then the telescopic rod can rotate while extending and retracting, so that it is more convenient to use.
[0012] 2. The telescopic rotating hydraulic cylinder, driven by the impeller, enables the driving ring plate to drive the telescopic rod to rotate, and driven by the sleeve in the hydraulic cylinder, enables the piston to rotate, thereby making the rotation of the telescopic rod more stable, and the driving liquid channels of opposite designs are provided at both ends of the outer sleeve of the hydraulic cylinder, so that the drive on both sides of the piston can drive the sleeve in the hydraulic cylinder to rotate in the same direction, thereby making its rotation more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;
[0015] Figure 3 It is a structural schematic diagram of the transfer trough connection of the utility model;
[0016] Figure 4 This is a structural schematic diagram of the sleeve connection in the hydraulic cylinder of the utility model;
[0017] Figure 5 It is a schematic diagram of the cross-sectional structure of the sleeve connection in the hydraulic cylinder of the utility model.
[0018] In the figure: 1. outer sleeve of hydraulic cylinder; 2. telescopic rod; 3. oil port; 4. piston; 5. inner sleeve of hydraulic cylinder; 6. linkage rod; 7. driving ring plate; 8. driving liquid channel; 9. transfer trough; 10. fixed ring plate; 11. impeller; 12. through port; 13. connecting plate. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figures 1 to 5 , a telescopic rotating hydraulic cylinder, comprising a hydraulic cylinder outer sleeve 1, an oil port 3 for circulating driving fluid is opened on the hydraulic cylinder outer sleeve 1, and the oil port 3 is connected to the interior of the hydraulic cylinder outer sleeve 1, and a movable piston 4 is arranged in the hydraulic cylinder outer sleeve 1, and a telescopic rod 2 is fixed to one side of the piston 4. Under the hydraulic pressure of the driving fluid, the piston 4 can move, and then the piston 4 can drive the telescopic rod 2 to be telescopic, and the telescopic rod 2 is movably connected to one end of the hydraulic cylinder outer sleeve 1. Under the limitation of the hydraulic cylinder outer sleeve 1, the telescopic rod 2 can be stably telescoped, and the interior of the hydraulic cylinder outer sleeve 1 is sleeved with a movable and rotating hydraulic cylinder inner sleeve 5, and the hydraulic cylinder inner sleeve 5 can be rotated at a fixed position inside the hydraulic cylinder outer sleeve 1. The hydraulic cylinder inner sleeve 5 serves as a rotating driving component of the device and can drive the piston 4 to rotate. The telescopic rod 2 can rotate while being telescoped. The inner side of the hydraulic cylinder inner sleeve 5 is an annular corrugated structure, and the piston 4 is located inside the hydraulic cylinder inner sleeve 5 and corresponds to the corrugated structure on the hydraulic cylinder inner sleeve 5. The corrugated structure allows the piston 4 to move along a fixed trajectory inside the hydraulic cylinder inner sleeve 5, so that the hydraulic cylinder inner sleeve 5 can determine the movement trajectory of the piston 4 while driving the piston 4 to rotate, and driven impellers 11 are provided at both ends of the hydraulic cylinder outer sleeve 1. The driving fluid pushes the impeller 11 to drive the fixed ring plate 10 to rotate while flowing into the hydraulic cylinder inner sleeve 5, and finally drives the hydraulic cylinder inner sleeve 5 to rotate, so that the piston 4 can rotate. The impeller 11 is connected to the fixed ring plate 10, and the fixed ring plate 10 can drive the hydraulic cylinder inner sleeve 5 to rotate.
[0021] See also Figures 1 to 5Transfer grooves 9 are provided at both ends of the outer sleeve 1 of the hydraulic cylinder, a driving liquid channel 8 is provided on the outer sleeve 1 of the hydraulic cylinder, and the oil port 3 is connected to the transfer groove 9 through the driving liquid channel 8. The driving liquid channel 8 is tangentially connected to the transfer groove 9, so that the driving liquid entering the oil port 3 can enter the transfer groove 9 under the action of the driving liquid channel 8, thereby increasing the driving force on the impeller 11, so that it can rotate smoothly.
[0022] See also Figures 1 to 5 The impeller 11 is located inside the transfer groove 9, and the fixed ring plate 10 is movably connected to the outer sleeve 1 of the hydraulic cylinder, thereby limiting the rotation position of the fixed ring plate 10, so that the impeller 11 can rotate stably, and a through port 12 is opened on the outer sleeve 1 of the hydraulic cylinder, and the through port 12 is connected to the transfer groove 9, so that the driving fluid in the transfer groove 9 can flow smoothly into the inner sleeve 5 of the hydraulic cylinder.
[0023] See also Figures 1 to 5 A connecting plate 13 is fixed to one side of the impeller 11 and the fixed ring plate 10, so that the connecting plate 13 can rotate. The connecting plate 13 is movably connected to the outer sleeve 1 of the hydraulic cylinder, thereby limiting the position of the connecting plate 13, so that it can rotate in a fixed position.
[0024] See also Figures 1 to 5 A driving ring plate 7 that rotates together with the connecting plate 13 is fixed to the inner side of the connecting plate 13. Driven by the connecting plate 13, the driving ring plate 7 can rotate. The inner side of the driving ring plate 7 has a ring-shaped corrugated structure. The telescopic rod 2 is movably connected to the inner side of the driving ring plate 7 and corresponds to the corrugated structure on the driving ring plate 7. Then the driving ring plate 7 can drive the telescopic rod 2 to rotate, making its rotation more stable.
[0025] See also Figures 1 to 5 The driving fluid channels 8 at both ends of the hydraulic cylinder outer sleeve 1 are designed in opposite directions, so that the driving fluid at both ends of the hydraulic cylinder outer sleeve 1 can push the hydraulic cylinder inner sleeve 5 to rotate in the same direction, and then the hydraulic cylinder inner sleeve 5 can rotate smoothly, and one end of the driving ring plate 7 extends into the interior of the hydraulic cylinder inner sleeve 5 and a linkage rod 6 is fixed to the outside of one end of the hydraulic cylinder inner sleeve 5. Driven by the driving ring plate 7, the linkage rod 6 can rotate, and one end of the linkage rod 6 is fixed to the inner side of the hydraulic cylinder inner sleeve 5. Driven by the linkage rod 6, the hydraulic cylinder inner sleeve 5 can rotate.
[0026] In summary, when the telescopic rotating hydraulic cylinder is in use, the driving liquid flows into the oil port 3 through the oil port 3, and then flows tangentially into the transfer groove 9 through the driving liquid channel 8, thereby pushing the impeller 11. Driven by the impeller 11, the fixed ring plate 10 is rotated, and then the connecting plate 13 is driven to rotate. Driven by the connecting plate 13, the driving ring plate 7 is rotated. Driven by the driving ring plate 7 and transmitted through the linkage rod 6, the inner sleeve 5 of the hydraulic cylinder is rotated. Driven by the inner sleeve 5 of the hydraulic cylinder, the inner sleeve 5 of the hydraulic cylinder is rotated. Driven by the driving ring plate 7, the telescopic rod 2 is rotated. The driving liquid in the transfer groove 9 finally flows into the inner sleeve 5 of the hydraulic cylinder through the through port 12, pushing the piston 4 to move, so that the telescopic rod 2 can be telescoped, thereby making the telescopic rod 2 rotate while telescoping.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A telescopic rotary hydraulic cylinder, comprising a hydraulic cylinder outer sleeve (1), an oil port (3) for circulating a driving fluid is provided on the hydraulic cylinder outer sleeve (1), the oil port (3) is communicated with the interior of the hydraulic cylinder outer sleeve (1), and a movable piston (4) is arranged in the hydraulic cylinder outer sleeve (1), a telescopic rod (2) is fixed to one side of the piston (4), and the telescopic rod (2) is movably connected to one end of the hydraulic cylinder outer sleeve (1), characterized in that: The inner sleeve of the hydraulic cylinder outer sleeve (1) is sleeved with a movable and rotatable hydraulic cylinder inner sleeve (5), the inner side of the hydraulic cylinder inner sleeve (5) is an annular corrugated structure, the piston (4) is located inside the hydraulic cylinder inner sleeve (5) and corresponds to the corrugated structure on the hydraulic cylinder inner sleeve (5), and driving impellers (11) are provided at both ends of the hydraulic cylinder outer sleeve (1), the impeller (11) is connected to a fixed ring plate (10), and the fixed ring plate (10) can drive the hydraulic cylinder inner sleeve (5) to rotate.
2. A telescopic rotary hydraulic cylinder according to claim 1, characterized in that: Transfer grooves (9) are provided in both ends of the outer sleeve (1) of the hydraulic cylinder. A drive fluid channel (8) is provided on the outer sleeve (1) of the hydraulic cylinder, and the oil port (3) is connected to the transfer groove (9) through the drive fluid channel (8). The drive fluid channel (8) is tangentially connected to the transfer groove (9).
3. A telescopic rotary hydraulic cylinder according to claim 2, characterized in that: The impeller (11) is located inside the transfer trough (9), and the fixed ring plate (10) is movably sleeved with the outer sleeve (1) of the hydraulic cylinder, and a through opening (12) is provided on the outer sleeve (1) of the hydraulic cylinder, and the through opening (12) is connected to the transfer trough (9).
4. A telescopic rotary hydraulic cylinder according to claim 3, characterized in that: A connecting plate (13) is fixed to one side of the impeller (11) and the fixed ring plate (10), and the connecting plate (13) is movably sleeved with the outer sleeve (1) of the hydraulic cylinder.
5. The telescopic rotary hydraulic cylinder according to claim 4, characterized in that: A driving ring plate (7) is fixed to the inner side of the connecting plate (13) and rotates therewith, the inner side of the driving ring plate (7) presents an annular corrugated structure, and the telescopic rod (2) is movably connected to the inner side of the driving ring plate (7) and corresponds to the corrugated structure on the driving ring plate (7).
6. The telescopic rotary hydraulic cylinder according to claim 5, characterized in that: The drive fluid channels (8) at both ends of the hydraulic cylinder outer sleeve (1) are designed in opposite directions, and one end of the drive ring plate (7) extends into the interior of the hydraulic cylinder inner sleeve (5), and a linkage rod (6) is fixed to the outside of one end of the drive ring plate (7) extending into the hydraulic cylinder inner sleeve (5), and one end of the linkage rod (6) is fixed to the inside of the hydraulic cylinder inner sleeve (5).