Push-pull device with adjustable pressure

Abstract

A push-pull device with adjustable pressure relates to the technical field of auxiliary equipment and comprises a cross beam used for being connected with a target component, an air cylinder supporting plate is arranged above the cross beam and fixed to a rack, a push-pull air cylinder is installed on the air cylinder supporting plate, and a push-pull rod is installed on the push-pull air cylinder. One end of a piston rod of the push-pull air cylinder downwards penetrates through the air cylinder supporting plate and is connected to the cross beam so as to push and pull the cross beam, the machine frame is further provided with a pressurizing air cylinder, and one end of a piston rod of the pressurizing air cylinder is downwards connected to the cross beam so as to pressurize the cross beam. According to the utility model, after the push-and-pull action of the target part is realized through the push-and-pull air cylinder, the target part is pressurized and locked through the pressurizing air cylinder, a hydraulic station and a hydraulic system are not needed any more, the pressure of an oil cylinder mode can be directly adopted, the operation requirement is met, and the advantages of simple structure, convenience in maintenance and repair and low cost are also realized.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment, in particular to a push-pull device with adjustable pressure. Background Art

[0002] The push-pull device is a common industrial equipment used to push and pull objects to achieve the purpose of rising or falling. Since a certain degree of locking effect needs to be achieved by pressurizing when descending to the target position, this type of equipment needs to rely on hydraulic stations and hydraulic systems. However, this traditional push-pull device has some defects, which are mainly reflected in the following aspects:

[0003] 1. High cost: The existing method requires the use of hydraulic stations and hydraulic systems, which are not only expensive to purchase, but also require frequent maintenance and replacement of hydraulic oil, increasing the operating costs of the equipment.

[0004] 2. Complex equipment installation and commissioning: The installation and commissioning process of hydraulic stations and hydraulic systems is relatively complex and requires professional technicians to operate, which increases the difficulty and time cost of using the equipment.

[0005] 3. Large size: The hydraulic station and hydraulic system are relatively large and require a certain amount of space, especially in some places with limited space, which cannot meet the layout requirements of the equipment.

[0006] 4. Oil leakage risk: The oil in the hydraulic system is both a power transmission medium and a lubricating medium for sealing components. However, due to the aging and wear of seals, hydraulic systems are prone to oil leakage, which increases the difficulty of system maintenance and the risk of environmental pollution.

[0007] In summary, the traditional push-pull device has the defects of high cost of hydraulic station and hydraulic system, complex installation and commissioning, large size and oil leakage risk. In order to solve these problems, it is necessary to develop a more efficient, economical and environmentally friendly push-pull device technology. Utility Model Content

[0008] The purpose of the utility model is to provide a push-pull device with adjustable pressure to solve the problems mentioned in the above background technology.

[0009] In order to solve the above technical problems, the utility model adopts the following technical solutions: a pressure-adjustable push-pull device, comprising a crossbeam for connecting a target component, a cylinder support plate is provided above the crossbeam, the cylinder support plate is fixed to a frame, a push-pull cylinder is installed on the cylinder support plate, one end of the push-pull cylinder piston rod passes downward through the cylinder support plate and is connected to the crossbeam for pushing and pulling the crossbeam, the frame is also equipped with a boosting cylinder, one end of the boosting cylinder piston rod is connected downward to the crossbeam for pressurizing the crossbeam.

[0010] Preferably, the left and right ends of the cylinder support plate are respectively fixedly connected to a frame pressure cover, and the frame pressure cover is fixedly installed on the frame.

[0011] More preferably, the number of the boosting cylinders is two, and they are respectively mounted on two frame glands, and the piston rods of the two boosting cylinders are respectively connected to the left and right ends of the crossbeam.

[0012] More preferably, the boost cylinder is also provided with a pressure gauge.

[0013] More preferably, the number of the push-pull cylinders is two and they are installed in parallel on the cylinder support plate.

[0014] More preferably, one end of the push-pull cylinder piston rod and one end of the boost cylinder piston rod are connected to the crossbeam via a cushion block.

[0015] Compared with the prior art, the utility model realizes the push-pull action of the target component through the push-pull cylinder, and then uses the booster cylinder to pressurize and lock the target component. It no longer requires a hydraulic station and a hydraulic system, and can also achieve the pressure directly using the oil cylinder method. It not only meets the operating requirements, but also achieves the advantages of simple structure, convenient maintenance and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the boost cylinder in the embodiment.

[0018] In the figure:

[0019] 1——crossbeam 2——cylinder support plate 3——push-pull cylinder

[0020] 4——Booster Cylinder 5——Frame Cover 6——Spacer

[0021] 7——Pressure gauge. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0023] It should be noted in advance that, in the present utility model, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. In addition, in the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature can include the first and second features directly contacting, and can also include the first and second features not being in direct contact but contacting through another feature between them.

[0024] like Figure 1 to Figure 2 As shown, a pressure-adjustable push-pull device includes a crossbeam 1 for connecting a target component, a cylinder support plate 2 is provided above the crossbeam 1, the cylinder support plate 2 is fixed to a frame, a push-pull cylinder 3 is installed on the cylinder support plate 2, one end of the piston rod of the push-pull cylinder 3 passes downward through the cylinder support plate 2 and is connected to the crossbeam 1 for pushing and pulling the crossbeam 1, and a booster cylinder 4 is also installed on the frame, one end of the piston rod of the booster cylinder 4 is connected downward to the crossbeam 1 for pressurizing the crossbeam 1.

[0025] In the above structure, the left and right ends of the cylinder support plate 2 are respectively fixedly connected to a frame gland 5, and the frame gland 5 is fixedly installed on the frame. Among them, the number of booster cylinders 4 is two, and they are respectively installed on two frame glands 5. The piston rods of the two booster cylinders 4 are respectively connected to the left and right ends of the crossbeam 1, so that the pressurization effect is more stable and reliable. In addition, a pressure gauge 7 is also provided on the booster cylinder 4 to facilitate observation of the actual boosting condition of the booster cylinder 4 and facilitate adjustment.

[0026] In this embodiment, there are two push-pull cylinders 3 which are installed in parallel on the cylinder support plate 2 to provide sufficient push-pull force.

[0027] In addition, one end of the piston rod of the push-pull cylinder 3 and one end of the piston rod of the boost cylinder 4 are connected to the crossbeam 1 through a cushion block 6 to make the force more uniform and avoid the problem of stress concentration caused by one end of the piston rod on the crossbeam 1.

[0028] The working principle of the pressure-adjustable push-pull device provided in the above embodiment is: when the target component needs to be lifted with a large stroke, the push-pull cylinder 3 is ventilated and lifts the beam 1. At this time, the boost cylinder 4 is passively retracted (its stroke is very short, and there is no pressurization in the pulling direction). When the target component needs to be lowered, the push-pull cylinder 3 changes direction and pushes the beam 1 downward. At this time, the boost cylinder 4 is passively stretched. When the target component reaches the target position, the push-pull cylinder 3 stops working, and the boost cylinder 4 starts to pressurize the beam 1 to ensure that the target component is pressed tightly to prevent drift.

[0029] The pressure-adjustable push-pull device provided by the present application can achieve the effect of adjusting the locking pressure on the target component because the intake pressure of the boost cylinder 4 can be adjusted. In addition, a smaller-sized boost cylinder 4 can provide a sufficiently large downward force (80mm cylinder diameter can provide 6T downward force), and the cost is very low. This allows the device to solve the problem that a simple boost cylinder cannot lift heavy objects (the boost cylinder has a small diameter and cannot lift heavy objects, and the boost stroke is also small, generally 5-20mm) and a simple large-sized push-pull cylinder cannot provide a sufficiently large downward force. Therefore, through the structure of two boost cylinders 4 plus two large-diameter push-pull cylinders 3, the effect of taking advantage of each is achieved to solve the problems of the prior art. After using this device, a hydraulic station and a hydraulic system are no longer required, and the pressure directly using the oil cylinder method can also be achieved, which not only meets the operating requirements, but also achieves the advantages of simple structure, convenient maintenance and repair, and low cost.

[0030] In order to make it easier for ordinary technicians in this field to understand the improvements of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and the above-mentioned embodiments are better implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A push-pull device with adjustable pressure, comprising a crossbeam (1) for connecting a target component, characterized in that: A cylinder support plate (2) is provided above the crossbeam (1), the cylinder support plate (2) is fixed to the frame, a push-pull cylinder (3) is installed on the cylinder support plate (2), one end of the piston rod of the push-pull cylinder (3) passes downward through the cylinder support plate (2) and is connected to the crossbeam (1) for pushing and pulling the crossbeam (1), and a booster cylinder (4) is also installed on the frame, one end of the piston rod of the booster cylinder (4) is connected downward to the crossbeam (1) for boosting the crossbeam (1).

2. The pressure-adjustable push-pull device according to claim 1, characterized in that: The left and right ends of the cylinder support plate (2) are respectively fixedly connected to a frame pressure cover (5), and the frame pressure cover (5) is fixedly mounted on the frame.

3. The push-pull device with adjustable pressure according to claim 2, characterized in that: There are two booster cylinders (4), which are respectively mounted on two frame glands (5); piston rods of the two booster cylinders (4) are respectively connected to the left and right ends of the crossbeam (1).

4. The push-pull device with adjustable pressure according to claim 3, characterized in that: The boost cylinder (4) is also provided with a pressure gauge (7).

5. The pressure-adjustable push-pull device according to claim 4, characterized in that: The push-pull cylinders (3) are two in number and are installed in parallel on the cylinder support plate (2).

6. The push-pull device with adjustable pressure according to any one of claims 1 to 5, characterized in that: One end of the piston rod of the push-pull cylinder (3) and one end of the piston rod of the boost cylinder (4) are both connected to the crossbeam (1) via a cushion block (6).

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