Anti-impact hydraulic cylinder

Abstract

An impact-resistant hydraulic oil cylinder is provided with an oil cylinder body, a hydraulic space is arranged in the oil cylinder body, an oil cylinder piston rod is arranged in the hydraulic space, an anti-collision part is arranged at the bottom of the oil cylinder piston rod, the anti-collision part is an anti-collision rubber sleeve, an oil inlet port and an oil outlet port are arranged on the oil cylinder body, protective parts are arranged on the two sides of the oil cylinder body, the anti-collision rubber sleeve at the bottom of the oil cylinder piston rod is made of a high-elastic polymer material, can form a flexible buffer layer when the piston rod accidentally collides with the cylinder bottom, converts the instantaneous impact force into material deformation, avoids the deformation or damage of the parts caused by the direct hard collision between metals, the protective ends on the two sides of the oil cylinder body are embedded with protective plates, the impact resistance of the inside of the oil cylinder body is improved, and the stability of the hydraulic oil cylinder is ensured.

Description

Technical Field

[0001] This utility model relates to a hydraulic cylinder, specifically an anti-impact hydraulic cylinder. Background Technology

[0002] Hydraulic cylinders are core actuators that convert hydraulic energy into mechanical energy. They are widely used in engineering machinery, industrial equipment, and automation. They mainly consist of a cylinder barrel, piston, sealing devices, and inlet / outlet ports. High-pressure oil drives the piston in reciprocating motion, outputting linear displacement and force. When pressurized oil enters the rodless chamber of the cylinder, it pushes the piston towards the rod chamber, and vice versa. By adjusting the oil pressure and flow rate, speed and thrust can be precisely controlled. Based on installation methods, they are classified as clevis type, flange type, etc. Double-acting cylinders can achieve bidirectional force, are suitable for complex working conditions, have high output force, fast response, convenient speed adjustment, and strong overload protection. They are key components for achieving heavy-duty linear motion in engineering machinery, agricultural machinery, metallurgical equipment, and automobile lifts.

[0003] In the prior art, CN202220454020.6 discloses a buffer-type hydraulic cylinder, which includes a hydraulic cylinder body, a fixed plate, and a hydraulic lifting plug. The hydraulic cylinder body has guide rods installed inside. A mounting plate is provided on one side of the hydraulic cylinder body, and a sealing plug matching the inner wall of the hydraulic cylinder body is installed on the inner side of the mounting plate. A fixed plate is provided inside the mounting plate, and a hydraulic lifting plug matching the inner wall of the hydraulic cylinder body is provided on the outer wall of the fixed plate. The inner wall of the hydraulic lifting plug matches the outer wall of the guide rod. A fixing groove is formed on the inner wall of the hydraulic cylinder body. This buffer-type hydraulic cylinder, through the hydraulic lifting plug pressing against the arc-shaped buffer plate and shock-absorbing spring, causes the arc-shaped buffer plate and shock-absorbing spring to contract within the guide rod. Then, under the elastic force of the arc-shaped buffer plate and shock-absorbing spring, the hydraulic lifting plug is reset, thus facilitating the shock absorption and buffering effect of the hydraulic lifting plug's position.

[0004] Although existing technologies use curved buffer plates and shock-absorbing springs to reset the hydraulic lifting piston under their own elastic force, thus facilitating shock absorption of the hydraulic lifting piston's position, they also have the problem of weak external impact resistance. Utility Model Content

[0005] In order to overcome the shortcomings of existing technologies in terms of weak external impact resistance, this utility model provides an impact-resistant hydraulic cylinder.

[0006] This utility model is achieved using the following technical solution: an anti-impact hydraulic cylinder, comprising a cylinder body, a hydraulic space within the cylinder body, a cylinder piston rod within the hydraulic space, an anti-collision component (an anti-collision rubber sleeve) at the bottom of the piston rod, an oil inlet port and an oil outlet port on the cylinder body, a protective component (a protective end) with a protective plate on the protective end, and an anti-impact component (an external anti-impact platform) on the outside of the cylinder body, comprising a left platform and a right platform on the external anti-impact platform, with the anti-impact component positioned between the left and right platforms.

[0007] An assembly space is provided between the left platform and the right platform, and assembly holes are provided on the left platform and the right platform, and impact-resistant components are installed in the assembly holes.

[0008] The impact-resistant component is an impact-resistant plate, which is an impact-resistant composite fiberboard, and an internal support plate is provided on one side of the impact-resistant composite fiberboard.

[0009] The left and right platforms are equipped with locking components, which are locking bolts, and the locking bolts fix the impact-resistant plates.

[0010] A bottom mounting component is provided on one side of the cylinder body. The bottom mounting component is a bottom mounting platform, and the bottom mounting platform is provided with mounting thread holes.

[0011] Compared with the prior art, the anti-collision rubber sleeve at the bottom of the piston rod of the hydraulic cylinder of this utility model is made of a highly elastic polymer material, which can form a flexible buffer layer when the piston rod accidentally hits the bottom of the cylinder, converting the instantaneous impact force into material deformation, avoiding the deformation or damage of the parts caused by direct hard collision between metals. The protective ends on both sides of the hydraulic cylinder body are equipped with protective plates, which improves the internal impact resistance of the hydraulic cylinder body and ensures the stability of the hydraulic cylinder.

[0012] The external platform, with its left and right platforms combined with impact-resistant composite fiberboard, forms a three-dimensional protection system. The impact-resistant composite fiberboard is a high-strength fiberboard that combines lightweight and impact resistance, absorbing some of the external impact force. Combined with the rigid reinforcement of the internal support plate, it prevents the collapse of the entire hydraulic cylinder structure in the face of sudden impacts such as falling objects or equipment tipping over. This gives the hydraulic cylinder higher reliability and safety in complex operating environments, making it particularly suitable for high-impact risk scenarios such as mines and construction, significantly reducing equipment maintenance frequency and operating costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of this utility model;

[0016] Figure 4 This is a sectional view of the present invention;

[0017] In the diagram: 1 is the cylinder body, 2 is the cylinder piston rod, 3 is the anti-collision rubber sleeve, 4 is the protective end, 5 is the anti-impact external platform, 6 is the assembly hole, 7 is the anti-impact plate, 8 is the locking bolt, 9 is the bottom assembly table, 10 is the locking slot, and 11 is the locking plate. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0019] An anti-impact hydraulic cylinder includes a cylinder body 1, a hydraulic space within the cylinder body 1, a cylinder piston rod 2 within the hydraulic space, an anti-collision component (anti-collision rubber sleeve 3) at the bottom of the cylinder piston rod 2, an oil inlet port and an oil outlet port on the cylinder body 1, a protective component (protective end 4) with a protective plate on the protective end 4, and an anti-impact component (anti-impact external platform 5) on the outside of the cylinder body 1, the anti-impact external platform 5 having a left platform and a right platform, with the anti-impact component positioned between the left and right platforms.

[0020] The anti-collision rubber sleeve 3 at the bottom of the cylinder piston rod 2 is made of high elastic polymer material, which can form a flexible buffer layer when the cylinder piston rod 2 accidentally hits the bottom of the cylinder, converting the instantaneous impact force into material deformation, avoiding the deformation or damage of the parts caused by direct hard collision between metals. The protective ends on both sides of the cylinder body 1 are equipped with protective plates to improve the internal impact resistance of the cylinder body 1 and ensure the stability of the hydraulic cylinder.

[0021] An assembly space is provided between the left platform and the right platform, and an assembly hole 6 is provided on the left platform and the right platform. An impact-resistant component is installed in the assembly hole 6. The impact-resistant component is an impact-resistant plate 7. The impact-resistant plate 7 is an impact-resistant composite fiberboard. An internal support plate is provided on one side of the impact-resistant composite fiberboard.

[0022] Locking components, namely locking bolts 8, are provided on the left and right platforms. The locking bolts 8 fix the anti-impact plate 7. A bottom assembly component, namely a bottom assembly platform 9, is provided on one side of the cylinder body 1. The bottom assembly platform 9 is provided with assembly threaded holes. The bottom assembly platform 9 and the hydraulic cylinder are movably connected. A locking groove 10 is provided at the movably connected position. A locking plate 11 is provided on the locking groove 10. The locking plate 11 and the locking groove 10 are fixed by bolts.

[0023] The combination of the left and right platforms of the external platform 5 with the impact-resistant plate 7 forms a three-dimensional protection system. The impact-resistant plate 7 is an impact-resistant composite fiberboard that combines lightweight and impact resistance. It can absorb some of the external impact force. With the rigid reinforcement of the internal support plate, it can prevent the collapse of the entire cylinder structure in the face of sudden impacts such as falling objects or equipment tipping. This makes the hydraulic cylinder more reliable and safe in complex working environments, especially suitable for high impact risk scenarios such as mines and construction, and significantly reduces the frequency of equipment maintenance and operating costs.

[0024] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An anti-impact hydraulic cylinder, comprising a cylinder body, a hydraulic space within the cylinder body, a cylinder piston rod within the hydraulic space, an anti-collision component (a rubber sleeve) at the bottom of the piston rod, an inlet port and an outlet port on the cylinder body, a protective component (a protective end) with a protective plate, and an external anti-impact component on the cylinder body, characterized in that: The impact-resistant component is an external impact-resistant platform, which has a left platform and a right platform. The impact-resistant component is located between the left and right platforms, and there is an assembly space between them. The left and right platforms have assembly holes, and the impact-resistant component is installed in the assembly holes. The impact-resistant component is an impact-resistant plate, which is an impact-resistant composite fiberboard. An internal support plate is located on one side of the impact-resistant composite fiberboard. The left and right platforms have locking components, which are locking bolts, and the locking bolts fix the impact-resistant plate.

2. The anti-impact hydraulic cylinder according to claim 1, characterized in that: A bottom mounting component is provided on one side of the cylinder body. The bottom mounting component is a bottom mounting platform, and the bottom mounting platform is provided with mounting thread holes.

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