Integrated buffer guide structure for oil cylinder

Abstract

The utility model discloses an integrated buffer guide structure for oil cylinder relates to oil cylinder technical field, including the main part of oil cylinder, and the buffer mechanism includes the mounting seat, cylinder and first slide bar, and the mounting seat fixedly sleeved is established on the main part, and the cylinder fixedly connected in the lower extreme of mounting seat, and the upper extreme of first slide bar is connected with the output stem of oil cylinder main part, and the lower extreme of first slide bar is slidably inserted in the cylinder and is penetrated through the mounting seat, and the lower extreme of cylinder is provided with the air hole, and the mounting ring is fixedly sleeved on the lateral wall of main part, and the cylinder fixedly connected in the upper extreme of mounting ring, and the inside of cylinder is provided with the air chamber that communicates with cylinder air hole, and the inside of mounting ring is slidably installed with second slide bar, and the air chamber opening size of mounting ring is adjusted to the second slide bar, and then the air flow in and out rate in the cylinder is adjusted, and the expansion of the generated air pressure to the main part output stem is buffered, and the problem that the existing oil cylinder's output stem activity is too fast can produce impact vibration, precision drops, pressure fluctuation, energy consumption increases, wear aggravation.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil cylinder technical field, concretely is an integrated buffer guide structure for oil cylinder. BACKGROUND

[0002] Oil cylinder (hydraulic cylinder) is a kind of device using hydraulic principle to convert liquid pressure into mechanical energy, is widely used in industrial automation, engineering machinery, transportation and other fields.Oil cylinder basic structure is usually composed of cylinder body, piston, piston rod, sealing element and connecting port etc..Hydraulic oil flows in cylinder body, passes through the piston to exert pressure, makes it reciprocating motion in cylinder body, to realize linear motion and force transmission.

[0003] The advantages of oil cylinder include large output force, rapid response, accurate control etc., but the output rod of oil cylinder moves too fast and produces impact and vibration, in turn leads to the problems of precision decline, pressure fluctuation, energy consumption increase, wear aggravation of oil cylinder, to solve the above-mentioned problems, an integrated buffer guide structure for oil cylinder is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an integrated buffer guide structure for oil cylinder to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: an integrated buffer guide structure for oil cylinder, including the main body of oil cylinder;

[0006] Buffer mechanism, including mounting seat, cylinder and first sliding rod, mounting seat fixedly sleeved on the main body, cylinder is fixedly connected at the lower end of mounting seat, the upper end of first sliding rod is connected with the output rod of oil cylinder main body, the lower end of first sliding rod is slidably inserted in cylinder, and the lower end of cylinder is provided with air hole;

[0007] Mounting ring;

[0008] Fixedly sleeved on the outer side wall of main body, and cylinder is fixedly connected at the upper end of mounting ring, and the inside of cylinder is provided with air cavity communicated with the air hole of cylinder, and the inside of mounting ring is slidably provided with second sliding rod;

[0009] Adjusting the opening size of air cavity of mounting ring by pushing second sliding rod, in turn adjusting the inflow and outflow rate of air flow in cylinder, and the generated air pressure buffers the extension of main body output rod.

[0010] As a preferred technical scheme of the utility model, the lower end of first sliding rod is fixedly connected with first piston for sealing sliding in cylinder.

[0011] As a preferred technical scheme of the utility model, cylinder is fixedly connected on the outer side wall of main body.

[0012] As a preferred technical scheme of the utility model, one end of the second slide rod is fixedly connected with a second piston for sealing sliding in the mounting ring.

[0013] As a preferred technical scheme of the utility model, a connecting frame for connecting the first slide rod is fixedly sleeved on the outer side wall of the output rod of the main body.

[0014] As a preferred technical scheme of the utility model, the air cylinder is provided with two, and the mounting ring is internally provided with two air cavities in communication with the air cylinder.

[0015] As a preferred technical scheme of the utility model, the mounting ring is mounted with a linkage mechanism for synchronously sliding the two second slide rods.

[0016] As a preferred technical scheme of the utility model, the linkage mechanism comprises a linkage ring, a rack and a gear, the second slide rod is fixedly connected on the inner side wall of the linkage ring, the rack is fixedly connected on the outer side wall of the linkage ring, the gear is rotatably installed on the mounting ring, and the gear and the rack are mutually engaged, and the upper end of the mounting ring is mounted with a motor for driving the gear to rotate.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The utility model discloses a kind of oil cylinders, comprising main body, output rod, mounting ring, air cylinder, second slide rod and motor, the main body is fixedly connected with the output rod, the output rod is fixedly connected with the mounting ring, the mounting ring is fixedly connected with the air cylinder, the air cylinder is fixedly connected with the second slide rod, and the second slide rod is fixedly connected with the motor. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is overall structure schematic view of the oil cylinder of the utility model embodiment;

[0020] Figure 2 It is overall structure schematic view of the buffer guide structure of the utility model embodiment;

[0021] Figure 3 It is overall structure schematic view of the linkage mechanism of the utility model embodiment;

[0022] Figure 4 It is sectional structure schematic view of the linkage mechanism of the utility model embodiment;

[0023] Figure 5 It is linkage ring and second slide rod connection structure schematic view of the utility model embodiment.

[0024] In the figure: 1, main body; 11, connecting frame; 2, buffer mechanism; 21, mounting seat; 22, air cylinder; 23, first sliding rod; 3, mounting ring; 31, second sliding rod; 4, linkage mechanism; 41, linkage ring; 42, rack; 43, gear. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-5 The embodiment provides an integrated buffer guide structure for an oil cylinder, which comprises a main body 1 of the oil cylinder. The output rod of the main body 1 is prone to strong vibration after rapid extension and retraction, thereby causing problems such as precision reduction, pressure fluctuation, energy consumption increase and wear aggravation. In order to buffer the extension and retraction of the output rod of the main body 1, a buffer mechanism 2 is arranged on the outer side wall of the main body 1. Figure 1

[0027] As shown in Figure 2 The buffer mechanism 2 comprises a mounting seat 21, an air cylinder 22 and a first sliding rod 23. The mounting seat 21 is fixedly sleeved on the main body 1 and is sealingly connected by means of screwing and welding. The air cylinder 22 is provided in two, and the two air cylinders 22 are symmetrically connected to the lower end of the mounting seat 21. One side of the air cylinder 22 is fixedly connected to the outer side wall of the main body 1, thereby stabilizing the installation of the air cylinder 22. A connecting frame 11 is fixedly sleeved on the outer side wall of the output rod of the main body 1. The two first sliding rods 23 are symmetrically connected to the lower end of the connecting frame 11. The lower end of the first sliding rod 23 penetrates the mounting seat 21 and is slidingly inserted into the air cylinder 22. The lower end of the first sliding rod 23 is fixedly connected with a first piston, and the first piston enables the lower end of the first sliding rod 23 to sealingly slide in the air cylinder 22. A through hole is formed in the upper end of the outer side wall of the air cylinder 22, and the through hole is in space communication with the upper side of the first piston. A gas hole is formed in the lower end of the air cylinder 22, and the gas hole is in space communication with the lower side of the first piston.

[0028] After the main body 1 is started, the output rod of the main body 1 reciprocatingly extends and retracts. The output rod drives the first sliding rod 23 to synchronously slide through the connecting frame 11. The first sliding rod 23 is slidingly inserted into the mounting seat 21, thereby guiding the movement of the output rod and stabilizing the sliding of the first sliding rod 23 and the output rod. The movement of the output rod is buffered by the damping formed by the first piston and the inner wall of the air cylinder 22.

[0029] ​In actual operation, it is found that damping force has little effect on buffering the movement of the output rod. In order to further buffer the movement of the output rod of the main body 1, the outer side wall of the main body 1 is sleeved with a mounting ring 3. Two air cavities that are centrally symmetric are formed in the mounting ring 3. The upper ends of the air cavities are aligned with the air holes of the main body 1. A second sliding rod 31 is slidably installed in the air cavities of the mounting ring 3. One end of the second sliding rod 31 is fixedly connected with a second piston. The second piston enables the second sliding rod 31 to sealably slide in the sliding cavity, thereby adjusting the size of the lower opening of the air cavity.

[0030] When buffering is needed, the second sliding rod 31 is actuated to reduce the size of the lower opening of the air cavity. After the output rod of the main body 1 is rapidly retracted, the first sliding rod 23 is rapidly slid into the air cylinder 22. The air in the air cylinder 22 below the first piston is rapidly compressed and cannot be discharged in time through the smaller lower opening of the air cavity. At this time, the high pressure generated can further buffer the retracted output rod. Similarly, after the output rod is rapidly extended, the external air cannot enter the air cylinder 22 in time through the smaller lower opening of the air cavity. The low pressure generated below the first piston can further buffer the extended output rod.

[0031] The lower openings of the two air cavities of the mounting ring 3 need to be kept in size synchronization to enable the same and stable buffering force to be generated on both sides of the output rod of the main body 1. In order to synchronously adjust the lower openings of the two air cavities, the main body 1 is provided with a linkage mechanism 4. Specifically, the linkage mechanism 4 includes a linkage ring 41, a rack 42 and a gear 43. As shown in Figure 1 , the linkage ring 41 is rotatably sleeved on the outer side wall of the mounting ring 3. As shown in Figure 4 , the two second sliding rods 31 are fixedly connected to the outer side wall of the linkage ring 41. As shown in Figure 1 and Figure 3 , the rack 42 is fixedly connected to the outer side wall of the linkage ring 41. The gear 43 is rotatably installed on the mounting ring 3 and is in meshing engagement with the rack 42. By actuating the gear 43, the linkage ring 41 can be rotated on the outer side wall of the mounting ring 3 through the rack 42. The rotation of the linkage ring 41 can synchronously drive the two second sliding rods 31 to slide in the air cavities.

[0032] As shown in Figure 1 and Figure 3 , a motor is installed on the mounting ring 3. The motor is a step motor with a reference model of EX42 and can accurately adjust the rotation angle of the output shaft of the motor. The output shaft of the motor is connected with the gear 43. By starting the motor, the rotation of the gear 43 can be accurately controlled.

[0033] Compared with the existing oil cylinder, the rapid movement of the output rod will cause a larger impact force, which may cause the vibration of the equipment, and in turn cause the problems of precision decline, pressure fluctuation, energy consumption increase and wear aggravation of the oil cylinder. These problems not only affect the performance and service life of the equipment, but also may bring hidden dangers to the safety of the operators. However, the embodiment adopts the design of the buffer mechanism 2 and the mounting ring 3, and the impact force caused by the rapid movement of the output rod is reduced through damping and air pressure buffering. Specifically, the buffer mechanism 2 can effectively absorb the energy generated by the output rod during movement, reducing the transmission of impact force. By adjusting the air pressure by adjusting the chamber opening of the mounting ring 3, the movement speed and acceleration of the output rod can be controlled, so as to realize the smooth extension and contraction action, and in turn improve the working precision of the oil cylinder to a certain extent. By optimizing the adjustment mechanism of air pressure buffering, the pressure fluctuation inside the oil cylinder can be further balanced, the energy consumption can be reduced, and the efficiency of the system can be improved.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated buffer guide structure for hydraulic cylinders, characterized in that, include: The main body of the hydraulic cylinder (1); The buffer mechanism (2) includes a mounting base (21), a cylinder (22) and a first slide rod (23). The mounting base (21) is fixedly sleeved on the main body (1). The cylinder (22) is fixedly connected to the lower end of the mounting base (21). The upper end of the first slide rod (23) is connected to the output rod of the cylinder body (1). The lower end of the first slide rod (23) slides through the mounting base (21) and is inserted into the cylinder (22). The lower end of the cylinder (22) is provided with an air hole. Mounting ring (3); The cylinder (22) is fixedly sleeved on the outer side wall of the main body (1) and fixedly connected to the upper end of the mounting ring (3). The cylinder (22) has an air chamber that communicates with the air hole of the cylinder (22). The second slide rod (31) is slidably installed inside the mounting ring (3). Move the second slide bar (31) to adjust the size of the air chamber opening of the mounting ring (3), thereby adjusting the airflow rate in the cylinder (22), and the generated air pressure buffers the extension and retraction of the output rod of the main body (1).

2. The integrated buffer guide structure for a hydraulic cylinder according to claim 1, characterized in that: The lower end of the first slide rod (23) is fixedly connected to a first piston for sealing and sliding within the cylinder (22).

3. The integrated buffer guide structure for a hydraulic cylinder according to claim 2, characterized in that: The cylinder (22) is fixedly connected to the outer wall of the main body (1).

4. The integrated buffer guide structure for a hydraulic cylinder according to claim 1, characterized in that: One end of the second slide rod (31) is fixedly connected to a second piston for sealing and sliding within the mounting ring (3).

5. The integrated buffer guide structure for a hydraulic cylinder according to claim 2, characterized in that: The outer wall of the output rod of the main body (1) is fixedly sleeved with a connecting frame (11) for connecting the first slide rod (23).

6. The integrated buffer guide structure for a hydraulic cylinder according to claim 4, characterized in that: The cylinder (22) is configured as two, and the mounting ring (3) has two air chambers that communicate with the cylinder (22) inside.

7. The integrated buffer guide structure for a hydraulic cylinder according to claim 6, characterized in that: The mounting ring (3) is equipped with a linkage mechanism (4) for synchronously sliding the two second slide rods (31).

8. The integrated buffer guide structure for a hydraulic cylinder according to claim 7, characterized in that: The linkage mechanism (4) includes a linkage ring (41), a rack (42) and a gear (43). The second slide rod (31) is fixedly connected to the inner side wall of the linkage ring (41). The rack (42) is fixedly connected to the outer side wall of the linkage ring (41). The gear (43) is rotatably mounted on the mounting ring (3), and the gear (43) meshes with the rack (42). A motor for driving the gear (43) to rotate is mounted on the upper end of the mounting ring (3).

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