Guide device of hydraulic mechanism

Abstract

The utility model relates to the technical field of guide mechanisms, in particular to a guide device of a hydraulic mechanism, which comprises a guide shaft, a guide seat and two guide device flanges. The two ends of the guide shaft are fixedly connected with oil cylinder installation bases at the two ends of a hydraulic mechanism oil cylinder barrel through guide device flanges, the guide shaft is sleeved with the guide base, the guide base can move along the guide shaft, the guide base is fixedly connected with the rear end of an equipment bracket of a hydraulic mechanism, and the front end of the equipment bracket is fixedly connected with the front end of an oil cylinder piston rod of the hydraulic mechanism. Sealing ring grooves are formed in the two ends of the guide seat, and wear-resisting rubber sealing rings are installed in the sealing ring grooves. A supporting ring groove is formed in the guide seat, a supporting ring is embedded in the supporting ring groove, and the supporting ring has the effects of reducing sliding resistance and avoiding abrasion of the guide shaft. The guiding device can solve the problems that a piston rod of a withdrawing oil cylinder of a translation unfolding mechanism is large in sinking amplitude and poor in load bearing.

Description

Technical Field

[0001] The utility model relates to the technical field of guide mechanisms, in particular to a guide device of a hydraulic mechanism. Background Art

[0002] In mobile photovoltaic power systems, using hydraulic mechanisms to deploy and retract photovoltaic panels is a mature technical measure in the industry. By connecting the photovoltaic mounting bracket with the cylinder piston rod of the hydraulic mechanism, the photovoltaic panel and the photovoltaic bracket can be deployed or retracted together.

[0003] At present, hydraulic mechanisms are mostly used for flipping, deployment and retraction. For translational deployment and retraction, hydraulic systems are mostly used for ground translational deployment and retraction. For translational deployment and retraction on the top of a shelter, roof, etc., the weight and volume of the deployment and retraction equipment are limited due to the cantilever. For equipment with large-area, long-distance cantilevered translational deployment and retraction at high altitudes, the cantilever is long, and the strength requirements of the hydraulic system are more stringent. In the cantilever state, the piston rod of the translation cylinder sinks greatly, and the push-pull force of the cylinder increases. During the retraction process, the equipment shakes greatly, and the load that the cylinder piston rod needs to bear is also large, so the strength requirements of the cylinder piston rod will be very high. Auxiliary measures need to be added to provide auxiliary support for the telescopic piston rod of the hydraulic system. Summary of the invention

[0004] The utility model aims to provide a guide device for a translational expansion hydraulic mechanism of equipment with a long cantilever, a large area and a large weight, so as to solve the problem of large sinking amplitude and poor load-bearing of the piston rod of the retracting cylinder of the translational expansion mechanism.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows.

[0006] A guide device for a hydraulic mechanism is applied to a translational deployment hydraulic mechanism in a mobile photovoltaic power supply system. The guide device comprises a guide shaft, a guide seat, and two guide device flanges. The guide shaft is arranged parallel to and in the same direction as the axis of the hydraulic mechanism. The two ends of the guide shaft are fixedly connected to the cylinder mounting seats at the two ends of the cylinder body of the hydraulic mechanism through the guide device flanges. The guide seat is sleeved on the guide shaft and can move along the guide shaft, and the guide seat is located between the two guide device flanges. The guide seat is fixedly connected to the rear end of an equipment bracket of the hydraulic mechanism, and the front end of the equipment bracket is fixedly connected to the front end of the cylinder piston rod of the hydraulic mechanism. Sealing ring grooves are provided at both ends of the guide seat, and wear-resistant rubber sealing rings are installed in the sealing ring grooves.

[0007] Furthermore, a support ring groove is provided in the guide seat, and a support ring is embedded in the support ring groove. The support ring plays a role in reducing sliding resistance and avoiding wear of the guide shaft.

[0008] Furthermore, a linear bearing can be arranged inside the support ring groove. The linear bearing can be arranged inside the support ring or directly replace the support ring to enhance the effect of reducing sliding resistance and avoiding wear of the guide shaft.

[0009] Furthermore, positioning stops and positioning threaded holes are provided on both ends of the guide shaft, the guide device flange and the cylinder mounting seat of the hydraulic mechanism, and the three can be fixed together with positioning bolts or positioning screws. The guide device flange plays a role in limiting and enhancing tightness.

[0010] The guiding device of the hydraulic mechanism provided by the utility model has the following advantages:

[0011] (1) Light weight, simple structure, simple processing and manufacturing, easy installation and disassembly.

[0012] (2) The guide shaft can be prevented from being worn out by replacing the supporting ring, thereby extending the service life of the guide shaft.

[0013] (3) A support ring or linear bearing is arranged in the guide seat, which can not only reduce the sliding resistance and avoid the wear of the guide shaft, but also control the sinking range of the cylinder piston rod, which is beneficial to improve the operating state of the hydraulic mechanism.

[0014] (4) The setting of the guide seat enhances the supporting force of the equipment, balances the supporting force at both ends of the equipment bracket, relieves the load-bearing pressure of the hydraulic mechanism, improves the stress state of the hydraulic mechanism, increases the load-bearing capacity of the hydraulic mechanism, and is conducive to increasing the deployment and retraction stroke of the hydraulic mechanism.

[0015] (5) Support rings of different specifications and thicknesses can be replaced according to the weight of the equipment bracket, the expansion and retraction stroke, etc. to adjust the gap between the guide seat and the guide shaft, thereby controlling the sinking range of the cylinder piston rod and improving the operating state of the hydraulic mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the installation arrangement of the guide device of the hydraulic mechanism in the embodiment.

[0017] Figure 2 Schematic diagram of the structure of the guide device of the hydraulic mechanism in the embodiment.

[0018] Figure 3 Schematic diagram of the structure of the guide shaft of the guide device of the hydraulic mechanism in the embodiment.

[0019] Figure 4 Schematic diagram of the structure of the guide seat of the guide device of the hydraulic mechanism in the embodiment.

[0020] Figure 5 Schematic diagram of the structure of the guide device flange of the guide device of the hydraulic mechanism in the embodiment.

[0021] In the figure: 1-equipment bracket, 2-cylinder piston rod, 3-guide device flange, 4-guide seat, 5-guide shaft, 6-cylinder body, 7-cylinder mounting seat, 8-positioning bolt, 9-sealing ring groove, 10-support ring groove. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and therefore, the utility model is not limited to the limitations of the specific embodiments disclosed below.

[0023] like Figures 1 to 5 The guide device of a hydraulic mechanism shown is applied to the translational deployment hydraulic mechanism in a mobile photovoltaic power system. A translational deployment hydraulic mechanism is provided on each side of the equipment in the mobile photovoltaic power system. The cylinder barrel 6 of the hydraulic mechanism is fixed on the top of the cabin or the roof. The cylinder piston rod 2 of the hydraulic mechanism pushes the equipment bracket 1 to move, thereby driving the photovoltaic power equipment fixed on the equipment bracket 1 to translate and deploy.

[0024] In this embodiment, a set of guide devices is installed on each hydraulic mechanism on both sides of the equipment. The guide devices are mainly composed of a guide shaft 5, a guide seat 4, and two guide device flanges 3 (one at each end). The guide shaft 5 is arranged parallel to the axis of the hydraulic mechanism and in the same direction. Positioning stoppers and positioning threaded holes are provided on the two ends of the guide shaft 5, the guide device flange 3, and the cylinder mounting seat 7 at both ends of the hydraulic mechanism cylinder barrel 6. The three can be fixedly connected together with the positioning bolts 8 or positioning screws. The guide device flange 3 plays a role in limiting and enhancing the tightness. The guide seat 4 is sleeved on the guide shaft 5 and can move along the guide shaft 5. The guide seat 4 is located between the two guide device flanges 3. The guide seat 4 is fixedly connected to the rear end of the equipment bracket 1 of the hydraulic mechanism, and the front end of the equipment bracket 1 is fixedly connected to the front end of the cylinder piston rod 2 of the hydraulic mechanism; the two ends of the guide seat 4 are provided with sealing ring grooves 9, and wear-resistant rubber sealing rings are installed in the sealing ring grooves 9; the guide seat 4 is provided with a support ring groove 10, and a support ring is embedded in the support ring groove 10. The support ring plays a role in reducing sliding resistance and avoiding wear of the guide shaft 5.

[0025] In this embodiment, the guide device flange 3 of the guide device of the hydraulic mechanism is positioned at both ends through the positioning stops at both ends of the guide shaft 5. The guide seat 4 can slide on the guide shaft 5 through the hole-shaft fit. There are sealing grooves at both ends of the guide seat 4, which are sealed with wear-resistant rubber sealing rings to prevent foreign matter from entering the guide seat 4 and affecting the sliding of the guide seat 4. There are support ring grooves 10 at both ends of the guide seat 4, and wear-resistant support rings are installed. The support rings play a role in reducing sliding resistance and avoiding wear of the guide shaft 5. At the same time, the support rings can adjust the gap between the guide seat 4 and the guide shaft 5 according to the actual situation of the bracket, thereby adjusting the sinking amplitude when the equipment bracket 1 is unfolded to a long stroke, thereby improving the operation condition of the hydraulic mechanism.

[0026] The guide device is connected to the hydraulic cylinder mounting seat 7 through the guide device flange 3, and then accurately positioned with positioning bolts 8 through the threaded holes at both ends of the guide shaft 5. One end of the guide seat 4 is tightly connected to the equipment bracket 1, and the connection method can be welding or bolt connection, and the specific form is determined according to the specific situation of the equipment.

[0027] When in use, the end of the push-pull cylinder piston rod 2 is connected to one end of the equipment bracket 1, and the guide seat 4 is connected to the other end of the equipment bracket 1, which adds a connection point between the push-pull equipment and the hydraulic system. The force on one end is changed to force on both ends. When the cylinder piston rod 2 moves, the guide seat 4 also moves on the guide shaft 5, while lifting the equipment bracket 1, improving the force condition of the cylinder piston rod 2.

[0028] In other embodiments, a linear bearing can also be set inside the support ring groove 10. The linear bearing can be set inside the support ring or directly replace the support ring. The linear bearing is used to support axial loads and realize linear motion mechanical transmission components, which can further enhance the effect of reducing sliding resistance and avoiding wear of the guide shaft 5.

Claims

1. A guide device for a hydraulic mechanism, applied to a translational deployment hydraulic mechanism in a mobile photovoltaic power system, the guide device comprising a guide shaft, a guide seat, and two guide device flanges, the guide shaft and the hydraulic mechanism axis are arranged in parallel and in the same direction, the two ends of the guide shaft are fixedly connected to the cylinder mounting seats at the two ends of the hydraulic mechanism cylinder barrel through the guide device flanges, the guide seat sleeve is arranged on the guide shaft and can move along the guide shaft, and the guide seat is located between the two guide device flanges, the guide seat is fixedly connected to the rear end of the equipment bracket of the hydraulic mechanism, and the front end of the equipment bracket is fixedly connected to the front end of the cylinder piston rod of the hydraulic mechanism; sealing ring grooves are provided at both ends of the guide seat, and wear-resistant rubber sealing rings are installed in the sealing ring grooves.

2. The guide device of the hydraulic mechanism according to claim 1, characterized in that: A support ring groove is arranged in the guide seat, and a support ring is embedded in the support ring groove. The support ring plays a role in reducing sliding resistance and avoiding wear of the guide shaft.

3. The guide device of the hydraulic mechanism according to claim 2, characterized in that: A linear bearing can also be arranged inside the support ring groove. The linear bearing is arranged inside the support ring or directly replaces the support ring to reduce sliding resistance and avoid wear of the guide shaft.

Images