Noise reduction type hydraulic oil cylinder

Abstract

The utility model provides a noise reduction type hydraulic oil cylinder which relates to the technical field of hydraulic oil cylinders and comprises a base assembly and a noise reduction component, a hydraulic transmission mechanism assembled through bolts is arranged on the top side of the base assembly, and the noise reduction component connected with the bolts in a sleeved mode is arranged on the outer side of the hydraulic transmission mechanism. The noise reduction component comprises a bolt substrate, an end shell, a multi-cavity shell, a sound insulation cotton layer, an assembly base block and an outer arc strip plate, the end shell is in bolted connection to the outer side of the hydraulic transmission mechanism through the bolt substrate, and the multi-cavity shell is arranged below the edge of the end shell; the multi-cavity shell and the sound insulation cotton layer which are annularly distributed are mainly utilized, the assembly base blocks and the outer arc battens are annularly distributed around the central axis of the multi-cavity shell, part of sound can be blocked through the outer arc battens, the sound transmission difficulty can be increased through the multi-cavity shell and the sound insulation cotton layer, and therefore the mute performance of equipment is improved, and the sound insulation effect of the equipment is improved. Noise is reduced, and meanwhile the comfort level of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a noise-reducing hydraulic cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the motion is smooth, so it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device. The buffer device and the exhaust device depend on the specific application, and other devices are indispensable.

[0003] When the existing hydraulic cylinder is in use, such as application number CN201910566457.1, it involves a hydraulic cylinder, including a base, a cylinder barrel, a piston rod, a lifting rope and a stabilizing frame. The cylinder barrel is installed on the top of the base, the cylinder barrel is a hollow cylindrical structure, the cross-section of the cylinder barrel is T-shaped, the piston rod is located in the cylinder barrel, the piston rod is a T-shaped cylindrical structure, and a circular hole is provided on the lower side wall of the upper end of the cylinder barrel. The circular holes are symmetrically distributed on the left and right sides of the outer end of the cylinder barrel. A lifting rope is distributed in each circular hole on the cylinder barrel, the top of the lifting rope is connected to the bottom of the piston rod, and the lower end of the lifting rope is installed with a stabilizing frame; however, in the above-mentioned technology, it is exposed to operation, which will generate huge noise during operation and affect the comfort of surrounding personnel. Therefore, the utility model proposes a noise reduction hydraulic cylinder to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the utility model proposes a noise-reducing hydraulic cylinder, which mainly utilizes a multi-cavity shell and a sound insulation cotton layer distributed in an annular manner, and the assembly base block and the outer arc strip plate are distributed in an annular manner around the central axis of the multi-cavity shell. The outer arc strip plate can block part of the sound, and the multi-cavity shell and the sound insulation cotton layer can increase the difficulty of sound propagation, thereby improving the quietness of the equipment, reducing noise, and improving the comfort of the user.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a noise reduction hydraulic cylinder, comprising a base assembly and a noise reduction component, the top side of the base assembly is provided with a hydraulic transmission mechanism assembled with bolts, and the outer side of the hydraulic transmission mechanism is provided with a noise reduction component sleeved with bolts;

[0006] The noise reduction component includes a bolt substrate, an end shell, a multi-cavity shell, a sound insulation cotton layer, an assembly base block and an outer arc strip plate. The end shell is bolted to the outer side of the hydraulic transmission mechanism through the bolt substrate. A multi-cavity shell is arranged below the edge of the end shell. A sound insulation cotton layer is arranged on the inner side of the multi-cavity shell. The outer side of the multi-cavity shell is bolted to the outer arc strip plate through the assembly base block.

[0007] As a preferred embodiment of the utility model, the multi-cavity shell has a porous structure, the multi-cavity shell and the sound insulation cotton layer form a concentric ring distribution, and the assembly base block and the outer arc strip plate are distributed in a ring around the central axis of the multi-cavity shell.

[0008] As a preferred embodiment of the utility model, the base assembly includes an assembly base, a shock absorber, a bearing base, a hinged base and a bolt base plate, the shock absorber is arranged on the top side of the assembly base, and the bearing base is arranged above the shock absorber.

[0009] As a preferred embodiment of the present invention, the top side of the bearing base is hingedly connected to a bolt base plate via an articulated base.

[0010] As a preferred embodiment of the utility model, the hydraulic transmission mechanism includes an end plate shell, a reinforcement rod, a cylinder body, a sealing ring sleeve, a push rod, an upper sleeve and a transmission hinge seat. The end plate shell is arranged on the top side of the bolt base plate, and an annularly distributed reinforcement rod is arranged below the edge of the end plate shell. The inner side of the end plate shell is provided with a sleeve-mounted cylinder body.

[0011] As a preferred embodiment of the utility model, a sealing ring sleeve connected by bolts is provided at the end of the cylinder body, and a push rod is provided on the inner side of the sealing ring sleeve, an upper sleeve is provided at the top end of the push rod, and a transmission hinge seat is provided at one end of the upper sleeve.

[0012] The beneficial effects of the utility model are:

[0013] The utility model mainly utilizes a multi-cavity shell and a sound insulation cotton layer that are distributed in an annular manner, and the assembly base block and the outer arc strips are distributed in an annular manner around the central axis of the multi-cavity shell. Part of the sound can be blocked by the outer arc strips, and the multi-cavity shell and the sound insulation cotton layer can increase the difficulty of sound propagation, thereby improving the quietness of the equipment, reducing noise, and improving the comfort of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural diagram of the hydraulic transmission mechanism of the utility model;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the noise reduction component of the utility model.

[0017] Among them: 1. Base assembly; 101. Assembly base; 102. Shock absorber; 103. Bearing base; 104. Articulated base; 105. Bolt base plate; 2. Hydraulic transmission mechanism; 201. End plate shell; 202. Reinforcement rod; 203. Cylinder body; 204. Sealing ring sleeve; 205. Push rod; 206. Upper sleeve; 207. Transmission hinge seat; 3. Noise reduction component; 301. Bolt base plate; 302. End shell; 303. Multi-cavity shell; 304. Sound insulation cotton layer; 305. Assembly base block; 306. Outer arc strip plate. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0019] according to Figure 1-3 As shown, this embodiment proposes a noise reduction hydraulic cylinder, comprising a base assembly 1 and a noise reduction component 3, the top side of the base assembly 1 is provided with a hydraulic transmission mechanism 2 assembled with bolts, and the outer side of the hydraulic transmission mechanism 2 is provided with a noise reduction component 3 sleeved with bolts;

[0020] The noise reduction component 3 includes a bolt substrate 301, an end shell 302, a multi-cavity shell 303, a sound insulation cotton layer 304, an assembly base block 305 and an outer arc strip plate 306. The end shell 302 is bolted to the outer side of the hydraulic transmission mechanism 2 through the bolt substrate 301, and a multi-cavity shell 303 is arranged below the edge of the end shell 302. The inner side of the multi-cavity shell 303 is arranged with a sound insulation cotton layer 304, and the outer side of the multi-cavity shell 303 is bolted to the outer arc strip plate 306 through the assembly base block 305.

[0021] The multi-cavity shell 303 has a porous structure. The multi-cavity shell 303 and the sound insulation cotton layer 304 form a concentric ring distribution. The assembly base block 305 and the outer arc strip plate 306 are distributed in a ring around the central axis of the multi-cavity shell 303.

[0022] In the present embodiment, when the base assembly 1 and the hydraulic transmission mechanism 2 are in operation, since the multi-cavity shell 303 has a porous structure and the outer arc strip 306 has an arc-shaped structure, the multi-cavity shell 303 distributed in a concentric ring shape and the sound insulation cotton layer 304 work together to effectively reduce the noise generated during the operation of the equipment, significantly reduce the propagation of noise, and enhance the quietness of the equipment.

[0023] The base assembly 1 includes an assembly base 101 , a shock absorber 102 , a bearing base 103 , a hinge base 104 and a bolt base plate 105 . The shock absorber 102 is arranged on the top side of the assembly base 101 , and the bearing base 103 is arranged above the shock absorber 102 .

[0024] In this embodiment, when in use, the assembly base 101 is assembled at the use position, and the transmission hinge seat 207 is connected to one end of the use position.

[0025] The top side of the bearing base 103 is hingedly connected to a bolt base plate 105 via a hinge base 104 .

[0026] In this embodiment, when the push rod 205 outputs power to extend and retract after the cylinder body 203, the push rod 205 drives the upper sleeve 206 and the transmission hinge seat 207 to extend and retract, and cooperates with the shock absorber 102, the bearing base 103, and the hinge base 104 to achieve the hinge transmission effect as needed.

[0027] The hydraulic transmission mechanism 2 includes an end plate shell 201, a reinforcing rod 202, a cylinder body 203, a sealing ring sleeve 204, a push rod 205, an upper sleeve 206 and a transmission hinge seat 207. The end plate shell 201 is arranged on the top side of the bolt base plate 105, and a ring-shaped reinforcing rod 202 is arranged below the edge of the end plate shell 201. The inner side of the end plate shell 201 is provided with a sleeve-mounted cylinder body 203.

[0028] In this embodiment, since the reinforcing rods 202 are distributed in a ring shape along the central axis of the end plate shell 201, the structure can be effectively strengthened when in use. When it is needed, the cylinder body 203 is used to output power to drive the output end to output power.

[0029] A bolt-connected sealing ring sleeve 204 is provided at the end of the oil cylinder body 203 , and a push rod 205 is provided on the inner side of the sealing ring sleeve 204 . An upper sleeve 206 is provided at the top end of the push rod 205 , and a transmission hinge seat 207 is provided at one end of the upper sleeve 206 .

[0030] In this embodiment, when the cylinder body 203 outputs power, the output end of the cylinder body 203 can drive the push rod 205 on the inner side of the sealing ring sleeve 204 to move telescopically.

[0031] The working principle of the noise reduction hydraulic cylinder is as follows: when in use, it is assembled at the position of use through the assembly base 101, and the transmission hinge seat 207 is connected to one end of the position of use. Since the reinforcing rods 202 are distributed in multiple groups in a ring shape along the central axis of the end plate shell 201, it can effectively achieve the effect of strengthening the structure when in the position of use. When it is needed to be used, the output power of the cylinder body 203 is used to drive the output end to output power. After the cylinder body 203 outputs power, the output power of the cylinder body 203 drives the output end to perform telescopic operation, so that the output end of the cylinder body 203 can drive the push rod 205 on the inner side of the sealing ring sleeve 204 to telescopic operation. When the push rod 205 outputs power to extend and retract after the cylinder body 203 outputs power, the push rod 205 drives the upper sleeve 206 and the transmission hinge seat 207 to extend and retract, and cooperates with the shock absorber 102, the bearing base 103, and the hinge base 104 to achieve the effect of hinge transmission as needed. When the base assembly 1 and the hydraulic transmission mechanism 2 are in operation, since the multi-cavity shell 303 has a porous structure and the outer arc strip plate 306 is an arc-shaped structure, the concentric ring-shaped multi-cavity shell 303 and the sound insulation cotton layer 304 work together to effectively reduce the noise generated during the operation of the equipment, significantly reduce the spread of noise, and improve the quietness of the equipment.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A noise reduction hydraulic cylinder, comprising a base assembly (1) and a noise reduction component (3), characterized in that: A hydraulic transmission mechanism (2) assembled with bolts is arranged on the top side of the base assembly (1), and a noise reduction component (3) sleeved with bolts is arranged on the outer side of the hydraulic transmission mechanism (2); The noise reduction component (3) comprises a bolt substrate (301), an end shell (302), a multi-cavity shell (303), a sound insulation cotton layer (304), an assembly base block (305) and an outer arc strip plate (306); the end shell (302) is bolted to the outer side of the hydraulic transmission mechanism (2) via the bolt substrate (301); a multi-cavity shell (303) is arranged below the edge of the end shell (302); a sound insulation cotton layer (304) is arranged on the inner side of the multi-cavity shell (303); and the outer side of the multi-cavity shell (303) is bolted to the outer arc strip plate (306) via the assembly base block (305).

2. A noise reduction hydraulic cylinder according to claim 1, characterized in that: The multi-cavity shell (303) has a porous structure, the multi-cavity shell (303) and the sound insulation cotton layer (304) form a concentric ring distribution, and the assembly base block (305) and the outer arc strip plate (306) are distributed in a ring around the central axis of the multi-cavity shell (303).

3. The noise reduction hydraulic cylinder according to claim 1, characterized in that: The base assembly (1) comprises an assembly base (101), a shock absorber (102), a bearing base (103), a hinge base (104) and a bolt base plate (105); the shock absorber (102) is arranged on the top side of the assembly base (101), and the bearing base (103) is arranged above the shock absorber (102).

4. The noise reduction hydraulic cylinder according to claim 3, characterized in that: The top side of the bearing base (103) is hingedly connected to a bolt base plate (105) via a hinged base (104).

5. The noise reduction hydraulic cylinder according to claim 3, characterized in that: The hydraulic transmission mechanism (2) includes an end plate shell (201), a reinforcing rod (202), a cylinder body (203), a sealing ring sleeve (204), a push rod (205), an upper sleeve (206) and a transmission hinge seat (207); the end plate shell (201) is arranged on the top side of the bolt base plate (105); an annularly distributed reinforcing rod (202) is arranged below the edge of the end plate shell (201); and a sleeve-mounted cylinder body (203) is arranged on the inner side of the end plate shell (201).

6. The noise reduction hydraulic cylinder according to claim 5, characterized in that: A sealing ring sleeve (204) which is bolted is arranged at the end of the oil cylinder body (203), and a push rod (205) is arranged on the inner side of the sealing ring sleeve (204), an upper sleeve (206) is arranged at the top end of the push rod (205), and a transmission hinge seat (207) is arranged at one end of the upper sleeve (206).

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