Energy-saving and environment-friendly hydraulic oil cylinder with function of preventing piston from sliding

Abstract

The utility model discloses an energy-saving environment-friendly hydraulic oil cylinder with a function of preventing a piston from moving and sliding, which relates to the technical field of hydraulic oil cylinders and comprises a cylinder barrel and a piston rod, cavities are arranged on two sides of the cylinder barrel, a piston block is connected to the tail end of the piston rod, two groups of grooves are arranged on the side face of the piston block, and sealing gaskets are arranged in the grooves. The utility model has the advantages that when the piston block is subjected to transverse force, the rolling bead is in contact with the inner wall of the cylinder barrel, so that the concentrated transverse force can be effectively dispersed and converted into rolling friction to be uniformly distributed to each contact point, the transverse pressure concentration degree of the piston block is reduced, and the piston block is prevented from being deformed and damaged; when the piston rod moves with dust, the contact block can scrape the dust, meanwhile, when the piston rod stretches out and draws back, the guiding and auxiliary supporting effects are achieved, the sliding phenomenon is prevented, and the reliability and stability of overall work of the oil cylinder are improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to an energy-saving and environmentally friendly hydraulic cylinder with a function to prevent piston slippage. Background Technology

[0002] In the field of traditional hydraulic cylinder technology, when the piston moves and is subjected to lateral force, the general hydraulic cylinder lacks an effective force dispersion and buffering mechanism, which can easily cause excessive local stress on the piston, resulting in deformation or even damage, affecting the normal operation of the cylinder. In addition, traditional hydraulic cylinders also have shortcomings in sealing and dust prevention. Poor sealing performance can easily lead to hydraulic oil leakage, and the piston rod is prone to dust accumulation during extension and retraction. Dust entering the cylinder will further aggravate the wear of components and reduce the reliability and stability of the equipment.

[0003] Therefore, we propose an energy-saving and environmentally friendly hydraulic cylinder with a function to prevent piston slippage. Utility Model Content

[0004] The purpose of this invention is to provide an energy-saving and environmentally friendly hydraulic cylinder with a function to prevent piston slippage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving and environmentally friendly hydraulic cylinder with a function to prevent piston slippage, comprising a cylinder barrel and a piston rod. Cavities are provided on both sides of the cylinder barrel. A piston block is connected to the end of the piston rod. Two sets of grooves are formed on the side of the piston block, and sealing gaskets are placed in the grooves. Fixing brackets are installed on both sides of the surface of the piston block. A rotating shaft is provided in the middle of the fixing brackets, and a ball bearing is installed on the rotating shaft. Buffer blocks are installed on both the upper and lower sides of the cylinder barrel. An oil seal cover is installed at the upper end of the cylinder barrel. Four sets of slots are formed inside the oil seal cover, and springs are installed in the slots. Contact blocks are installed at the ends of the springs, and gaskets are installed on the front surface of the contact blocks.

[0006] As a further embodiment of this utility model: six sets of fixing brackets are installed on one side of the piston block, the rotating shaft is set on the top of the fixing brackets, the rolling ball is located on the rotating shaft and its surface contacts the inner wall of the cylinder, the buffer block is set on one side of the cavity and the buffer block is located in the gap between the fixing brackets.

[0007] As a further embodiment of this utility model: the oil seal cover is located above the cylinder, and the piston rod passes through the middle, the slot is located in the middle of the oil seal cover, the spring is located in the slot and presses the contact block, and the gasket on the surface of the contact block contacts the surface of the piston rod.

[0008] As a further embodiment of this utility model: the end of the piston rod passes through the piston block and is connected to the back of the piston block by screws.

[0009] As a further embodiment of this utility model, oil inlets are provided at both ends of the cylinder.

[0010] As a further embodiment of this utility model: a cylinder bottom is installed on the bottom surface of the cylinder barrel, and a pin hole is installed at the end of the piston rod.

[0011] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:

[0012] 1. This utility model utilizes the cooperation of six sets of fixed brackets installed on one side of the piston block and rolling balls on the rotating shaft. The rolling balls are in contact with the inner wall of the cylinder. When the piston block is subjected to lateral force, the rolling balls can effectively disperse and transform the lateral force. The large lateral force that might have been concentrated at the contact point between the piston block and the cylinder is evenly distributed to each contact point between the rolling balls and the cylinder through rolling friction. This reduces the degree of lateral pressure concentration on the piston block and avoids deformation or damage to the piston block due to excessive local force. At the same time, the buffer block is located in the gap between the fixed brackets, which can support and buffer the piston block without damaging the fixed brackets.

[0013] 2. This utility model uses a spring-loaded contact block located above the cylinder barrel and in the empty groove to make its surface gasket contact the piston rod surface. When dust adheres to the piston rod surface, as the piston rod moves, the close contact between the contact block and the piston rod can act like a wiper to scrape and clean the dust off the piston rod surface. At the same time, the contact block compression can play a certain guiding and auxiliary support role during the extension and retraction of the piston rod, reducing the occurrence of slippage and improving the overall reliability and stability of the hydraulic cylinder.

[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a front view schematic diagram of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the piston block in an embodiment of the present invention.

[0019] In the diagram: 1. Cylinder; 2. Piston rod; 3. Piston block; 31. Sealing gasket; 32. Fixing bracket; 33. Ball bearing; 34. Buffer block; 4. Oil seal cover; 41. Spring; 42. Contact block; 5. Oil inlet; 6. Cylinder bottom; 7. Pin hole. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.

[0021] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] Please see the appendix Figure 1 - Appendix Figure 4 This utility model discloses an energy-saving and environmentally friendly hydraulic cylinder with a function to prevent piston slippage. It includes a cylinder barrel 1 and a piston rod 2. The cylinder barrel 1 has cavities on both sides. A piston block 3 is connected to the end of the piston rod 2. A sealing gasket 31 in the groove on the side of the piston block 3 ensures sealing. Rolling balls 33 on the rotating shaft between the fixing brackets 32 on both sides of the piston block 3 are in close contact with the inner wall of the cylinder barrel 1. When the piston block 3 encounters a lateral force, the rolling balls 33 can cleverly convert the concentrated lateral force into rolling friction, evenly distributing it to each contact point, greatly reducing local pressure on the piston block 3. The force effectively prevents deformation and damage. The buffer blocks 34 on the upper and lower sides of the cylinder 1 are set in the gap of the fixed frame 32. They can buffer the impact of the piston block 3 movement without damaging the fixed frame 32. The oil seal cover 4 at the upper end of the cylinder 1 has four sets of slots. The spring 41 in the slot pushes the contact block 42, so that the gasket presses the piston rod 2 tightly. When the piston rod 2 extends and retracts, the contact block 42 can scrape off the dust on its surface, prevent dust from entering the cylinder 1, and also provide guidance and auxiliary support, reduce slippage, and improve the reliability and stability of the hydraulic cylinder.

[0023] In the first embodiment, six sets of fixing brackets 32 are installed on one side of the piston block 3. The rotating shaft is set on the top of the fixing bracket 32. The rolling ball 33 is located on the rotating shaft and its surface contacts the inner wall of the cylinder 1. The buffer block 34 is set on one side of the cavity and is located in the gap between the fixing brackets 32. The oil seal cover 4 is located above the cylinder 1 and the piston rod 2 passes through the middle. The slot is located in the middle position of the oil seal cover 4. The spring 41 is located in the slot and presses the contact block 42. The gasket on the surface of the contact block 42 contacts the surface of the piston rod 2.

[0024] Specifically, six sets of fixing brackets 32 are set on both sides of the piston block 3, and the rotating shaft at the top of the brackets steadily supports the rolling balls 33. The rolling balls 33 fit seamlessly with the inner wall of the cylinder 1. In this way, when the piston block 3 faces a lateral force, the rolling balls 33 cleverly disperse the force through rolling friction, effectively reducing the stress on the piston block 3. The buffer block 34 is placed in the gap between the cavity side and the fixing brackets 32. While buffering the impact, it does not affect the operation of other components. The oil seal cover 4 located above the cylinder 1 allows the piston rod 2 to pass through smoothly. In the groove in the middle of the interior, the spring 41 presses the contact block 42, so that the gasket on the surface of the contact block 42 is tightly connected to the piston rod 2, ensuring good sealing and stable operation.

[0025] In embodiment 2, the piston rod 2 passes through the piston block 3 at its end and is connected to the back of the piston block 3 by screws. Both ends of the cylinder 1 are provided with oil inlets 5, the bottom of the cylinder 1 is provided with a cylinder bottom 6, and the end of the piston rod 2 is provided with a pin hole 7.

[0026] Specifically, the piston rod 2 passes through the piston block 3 at its end and is securely connected to it with screws on its back. This connection method ensures close cooperation and stable transmission between the two and facilitates later maintenance. The oil inlets 5 at both ends of the cylinder 1 provide key channels for the input of hydraulic power. The cylinder bottom 6 facilitates the installation of the entire device. The pin hole 7 at the end of the piston rod 2 provides convenient connection points for external components, making the overall structure and function more complete.

[0027] Working principle:

[0028] First, when hydraulic oil enters the internal cavity of cylinder 1 through the oil inlets 5 at both ends of cylinder 1, it pushes piston block 3 to move. The rolling balls 33 on the fixed brackets 32 on both sides of piston block 3 contact the inner wall of cylinder 1. During the movement of piston block 3, if it is subjected to lateral force, the rolling balls 33 convert the lateral force into rolling friction and disperse it, reducing the local force on piston block 3. At the same time, the buffer block 34 buffers the impact of piston block 3 movement in the gap of fixed bracket 32. The end of piston rod 2 passes through piston block 3 and is connected by screws to ensure that the two work together. As piston block 3 moves, piston rod 2 extends and retracts. At this time, spring 41 in oil seal cover 4 squeezes contact block 42. The gasket of contact block 42 is in close contact with piston rod 2. On the one hand, it scrapes the dust on the surface of piston rod 2 to prevent it from entering cylinder 1. On the other hand, it provides guidance and auxiliary support for piston rod 2, reducing slippage and making the entire hydraulic cylinder operate stably and reliably, achieving efficient energy utilization and multiple function protection. At this point, the entire working process ends.

[0029] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0032] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. An energy-saving and environmentally friendly hydraulic cylinder with a function to prevent piston slippage, comprising a cylinder barrel (1) and a piston rod (2), wherein cavities are provided on both sides of the cylinder barrel (1), and a piston block (3) is connected to the end of the piston rod (2), wherein two sets of grooves are provided on the side of the piston block (3), and a sealing gasket (31) is provided in the groove, characterized in that: The piston block (3) has a fixing bracket (32) installed on both sides of its surface. A rotating shaft is provided in the middle of the fixing bracket (32). A ball bearing (33) is installed on the rotating shaft. Buffer blocks (34) are installed on both the upper and lower sides of the cylinder (1). An oil seal cover (4) is installed at the upper end of the cylinder (1). Four sets of empty slots are opened in the oil seal cover (4). A spring (41) is installed in the empty slot. A contact block (42) is installed at the end of the spring (41). A gasket is installed on the front surface of the contact block (42).

2. The energy-saving and environmentally friendly hydraulic cylinder with piston slip prevention function according to claim 1, characterized in that: Six sets of fixing brackets (32) are installed on one side of the piston block (3). The rotating shaft is set on the top of the fixing bracket (32). The rolling ball (33) is located on the rotating shaft and its surface contacts the inner wall of the cylinder (1). The buffer block (34) is set on one side of the cavity and is located in the gap between the fixing brackets (32).

3. The energy-saving and environmentally friendly hydraulic cylinder with piston slip prevention function according to claim 1, characterized in that: The oil seal cover (4) is located above the cylinder (1), and the piston rod (2) passes through the middle. The slot is located in the middle of the oil seal cover (4). The spring (41) is located in the slot and presses the contact block (42). The gasket on the surface of the contact block (42) contacts the surface of the piston rod (2).

4. The energy-saving and environmentally friendly hydraulic cylinder with piston slip prevention function according to claim 1, characterized in that: The piston rod (2) passes through the piston block (3) at its end and is connected to the piston block (3) by screws on the back side.

5. An energy-saving and environmentally friendly hydraulic cylinder with piston slip prevention function according to claim 1, characterized in that: Both ends of the cylinder (1) are provided with oil inlets (5).

6. The energy-saving and environmentally friendly hydraulic cylinder with piston slip prevention function according to claim 1, characterized in that: The bottom surface of the cylinder (1) is fitted with a cylinder bottom (6), and the end of the piston rod (2) is fitted with a pin hole (7).

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