Hydraulic oil cylinder assembly

Abstract

The utility model provides a hydraulic oil cylinder assembly which comprises an oil cylinder assembly body, a ball body and a push rod cleaning assembly, and an oil cylinder outer shell used for conveying hydraulic oil and protecting internal assemblies is arranged on the outer side of the oil cylinder assembly body. The oil cylinder assembly has the advantages that the oil cylinder assembly body and the push rod cleaning assembly are additionally arranged, hydraulic oil is guided into the oil pipe to push the two sets of cleaning ring seat push rods to move, the cleaning ring seat push rods drive the cleaning ring seat to move, then the three sets of cleaning plates move in a reciprocating mode, and the movement frequency of the cleaning ring seat push rods is higher than that of the push rods; the three spring assemblies on the outer side of the cleaning plate press and fix the cleaning plate and prevent too large pressure from hindering movement of the push rod, the cleaning effect of the push rod can be improved, an oil cylinder assembly body is additionally arranged, the push rod can assist movement through a ball body in the movement process, and hydraulic oil is guided into an oil groove through an oil inlet hole to lubricate the outer side face of the ball body; the push rod moving resistance can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic cylinder components, in particular to a hydraulic cylinder component. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It generates force through fluid pressure to push the piston, and then pushes the load. There are many types of hydraulic cylinders, which are widely used in many occasions. The push rod in the hydraulic cylinder will be in direct contact with the outside world during use. The push rod will frequently reciprocate between the outside world and the inside of the cylinder. In the process of contact with the outside world, the push rod will adhere to the dust in the air, especially in some mechanical processing production environments, where there is a lot of dust suspended in the air. This causes the push rod to enter the cylinder again after adhering to the dust, which will cause certain pollution to the hydraulic oil therein, thereby reducing the performance and service life of the hydraulic oil.

[0003] Secondly, the common hydraulic cylinder is only equipped with a single-structure dust removal ring at the outer end, which has poor dust removal effect and cannot effectively wipe the dirt on the outer side of the push rod. The push rod will cause certain friction to the dust removal ring during the reciprocating motion, which will reduce its sealing performance under long-term action. The replacement of the dust removal ring requires the dismantling of the hydraulic cylinder, which leads to certain inconveniences in its replacement.

[0004] In summary, the cleaning effect of the dirty outer side of the hydraulic cylinder push rod is poor and there are some problems in use, so it is hoped to propose a new structure to solve the above technical problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a hydraulic cylinder assembly to solve the problems raised in the above background technology.

[0006] The utility model is realized through the following technical scheme: a hydraulic cylinder component, comprising: a cylinder component main body, a ball body and a push rod cleaning component, the outer side of the cylinder component main body is provided with a cylinder outer shell for conveying hydraulic oil and protecting internal components, the inner center of the outer shell is provided with a piston for isolating the two ends of the inner side of the cylinder outer shell and pushing two groups of push rods, the left and right ends of the piston are each provided with a group of push rods, the outer side surfaces of the push rods at the left and right ends close to the center of the piston are provided with three groups of guide support columns, the end of the guide support column away from the center of the push rod is provided with a ball seat for mounting the ball body, the inner side of the ball seat is provided with a ball body for assisting the movement of the push rod, and a push rod cleaning component for cleaning the outer side surfaces of the two groups of push rods is provided above the cylinder component main body.

[0007] As a preferred embodiment, an oil pipe for conveying hydraulic oil is provided at the central upper end of the push rod cleaning assembly, and an outer cylinder body of the cleaning assembly is provided below the oil pipe.

[0008] As a preferred embodiment, a group of cleaning ring seat push rods for pushing the cleaning ring seat to move left and right are provided at the left and right ends of the inner side of the outer cylinder body. A cleaning ring seat is provided at the lower end of the cleaning ring seat push rod away from the center of the push rod cleaning assembly. Hydraulic oil is introduced into the inner side of the outer cylinder body of the cleaning assembly through an oil pipe, so that the hydraulic oil pushes the cleaning ring seat push rod to reciprocate, thereby improving the cleaning effect on the outer side of the push rod.

[0009] As a preferred embodiment, three groups of spring components equally distributed in a circumference are provided on the inner side of the cleaning ring seat, and three groups of cleaning plates are provided on the inner side of the spring component.

[0010] As a preferred embodiment, the three groups of cleaning plates form a group of circular rings and the inner and outer side surfaces of the cleaning plates are in contact with the outer side surfaces of the push rods, the interior of the oil pipes is connected to the interior of the outer cylinder body of the cleaning assembly, and a group of spring assemblies are provided on the outsides of the three groups of cleaning plates, which can maintain the pressure of the cleaning plates on the outer side surfaces of the push rods and prevent excessive pressure from hindering the movement of the push rods.

[0011] As a preferred embodiment, the three groups of guide support columns are equally distributed on the circumference, a plurality of groups of oil inlet holes are provided on the outer side of the ball seat, and a group of oil grooves are provided on the inner side of the ball seat.

[0012] As a preferred embodiment, the oil groove and several groups of oil inlet holes are interconnected, the outer side surface of the ball body and the inner side surface of the cylinder outer shell fit together, the push rod can be assisted in movement by the ball body, and the hydraulic oil is introduced into the oil groove through the oil inlet hole to lubricate the outer side surface of the ball body, which can reduce the resistance to the movement of the push rod.

[0013] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: by adding the main body of the cylinder assembly and the push rod cleaning assembly, hydraulic oil is introduced into the oil pipe to push the two groups of cleaning ring seat push rods to move, so that the cleaning ring seat push rod drives the cleaning ring seat to move, and then the three groups of cleaning plates are reciprocated, and the movement frequency of the cleaning ring seat push rod is higher than that of the push rod, and the three groups of spring assemblies on the outside of the cleaning plate press the cleaning plate and avoid excessive pressure hindering the movement of the push rod, which can improve the cleaning effect of the push rod, and by adding the main body of the cylinder assembly, the push rod can be assisted in movement by the ball body, and the hydraulic oil is introduced into the oil groove through the oil inlet hole to lubricate the outer side of the ball body, which can reduce the resistance to the movement of the push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a hydraulic cylinder assembly.

[0016] Figure 2 It is a partial cross-sectional schematic diagram of a main body of a hydraulic cylinder assembly in the utility model.

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 The utility model is a structural schematic diagram of a hydraulic cylinder assembly in which the cylinder assembly main body is removed from the cylinder outer shell.

[0019] Figure 5 The utility model is a schematic diagram of the structure of a push rod cleaning assembly in a hydraulic cylinder assembly.

[0020] In the figure, 100-oil cylinder assembly body, 101-oil cylinder outer shell, 102-push rod, 103-piston, 104-guide support column, 105-ball seat, 106-ball body, 107-oil groove, 108-oil inlet hole;

[0021] Push rod cleaning assembly, 201-oil pipe, 202-cleaning ring seat push rod, 203-cleaning ring seat, 204-spring assembly, 205-cleaning plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 The utility model provides a technical solution: a hydraulic cylinder assembly, comprising: a cylinder assembly body 100, a ball body 106 and a push rod cleaning assembly 200, and a cylinder outer shell 101 for conveying hydraulic oil and protecting internal components is provided on the outer side of the cylinder assembly body 100;

[0024] A piston 103 is provided at the center of the inner side of the outer shell 101 for isolating the two ends of the inner side of the oil cylinder outer shell 101 and pushing the two sets of push rods 102. A set of push rods 102 is provided at both ends of the piston 103. Three sets of guide support columns 104 are provided on the outer sides of the push rods 102 at both ends near the center of the piston 103.

[0025] A ball seat 105 for mounting a ball body 106 is provided at one end of the guide support column 104 away from the center of the push rod 102. A ball body 106 for assisting the movement of the push rod 102 is provided inside the ball seat 105. A push rod cleaning assembly 200 for cleaning the outer sides of the two groups of push rods 102 is provided above the cylinder assembly body 100.

[0026] An oil pipe 201 for conveying hydraulic oil is provided at the center upper end of the push rod cleaning assembly 200 , and an outer cylinder body of the cleaning assembly is provided below the oil pipe 201 .

[0027] A group of cleaning ring seat push rods 202 for pushing the cleaning ring seat 203 to move left and right are provided at both left and right ends of the inner side of the outer cylinder body. A cleaning ring seat 203 is provided at the lower end of the cleaning ring seat push rod 202 away from the center of the push rod cleaning assembly 200. Hydraulic oil is introduced into the inner side of the outer cylinder body of the cleaning assembly through the oil pipe 201, so that the hydraulic oil pushes the cleaning ring seat push rod 202 to reciprocate, thereby improving the cleaning effect on the outer side of the push rod 102.

[0028] Three groups of spring components 204 are equally distributed on the circumference of the cleaning ring seat 203 , and three groups of cleaning plates 205 are arranged on the inner side of the spring component 204 .

[0029] The three groups of cleaning plates 205 form a group of circular rings, and the inner and outer side surfaces of the cleaning plates 205 fit together with the outer side surface of the push rod 102. The interior of the oil pipe 201 is connected to the interior of the outer cylinder of the cleaning component. A group of spring assemblies 204 are arranged on the outside of the three groups of cleaning plates 205, which can maintain the pressure of the cleaning plates 205 on the outer side surface of the push rod 102 and prevent excessive pressure from hindering the movement of the push rod 102.

[0030] See also Figure 1 and Figure 5 As the first embodiment of the utility model: first, the user introduces hydraulic oil into the oil pipe 201 to push the two groups of cleaning ring seat push rods 202 to move back and forth, so that the cleaning ring seat push rods 202 drive the cleaning ring seat 203 to move back and forth, and then the three groups of cleaning plates 205 reciprocate, and the movement frequency of the cleaning ring seat push rods 202 is higher than that of the push rods 102. Secondly, a group of spring assemblies 204 are arranged on the outside of the three groups of cleaning plates 205, which can maintain the pressure of the cleaning plates 205 on the outer side of the push rods 102 and prevent excessive pressure from hindering the movement of the push rods 102, thereby improving the cleaning effect on the outer side of the push rods 102.

[0031] The three groups of guide support columns 104 are equally distributed on the circumference. A plurality of groups of oil inlet holes 108 are provided on the outer side of the ball seat 105 , and a group of oil grooves 107 are provided on the inner side of the ball seat 105 .

[0032] The oil groove 107 and several groups of oil inlet holes 108 are interconnected, the outer side surface of the ball body 106 fits with the inner side surface of the cylinder outer shell 101, the push rod 102 can be assisted in movement by the ball body 106, and the hydraulic oil is introduced into the oil groove 107 through the oil inlet hole 108 to lubricate the outer side surface of the ball body 106, which can reduce the movement resistance of the push rod 102.

[0033] See also Figure 1-Figure 4 , as the second embodiment of the utility model: based on the above-mentioned first embodiment, firstly, the push rod 102 can be assisted in guidance by the three sets of guide support columns 104 during the left and right movement, and the movement resistance of the push rod 102 can be reduced by the rolling action between the outer side surface of the ball body 106 and the inner side surface of the cylinder outer shell 101; secondly, after the hydraulic oil enters the cylinder outer shell 101, it is introduced into the oil groove 107 through the oil inlet hole 108 to lubricate the outer side surface of the ball body 106, thereby reducing the movement resistance of the push rod 102.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic cylinder assembly, comprising: The oil cylinder assembly body (100), the ball body (106) and the push rod cleaning assembly (200) are characterized in that: an oil cylinder outer shell (101) for conveying hydraulic oil and protecting internal components is provided on the outside of the oil cylinder assembly body (100); A piston (103) is provided at the inner center of the outer shell (101) for isolating the two ends of the inner part of the oil cylinder outer shell (101) and pushing the two sets of push rods (102); a set of push rods (102) are provided at the left and right ends of the piston (103); and three sets of guide support columns (104) are provided on the outer side surfaces of the push rods (102) at the left and right ends near the center of the piston (103); A ball seat (105) for mounting a ball body (106) is provided at one end of the guide support column (104) away from the center of the push rod (102); a ball body (106) for assisting the push rod (102) in moving is provided inside the ball seat (105); and a push rod cleaning assembly (200) for cleaning the outer side surfaces of the two groups of push rods (102) is provided above the main body (100) of the oil cylinder assembly.

2. A hydraulic cylinder assembly according to claim 1, characterized in that: An oil pipe (201) for conveying hydraulic oil is provided at the central upper end of the push rod cleaning assembly (200), and an outer cylinder body of the cleaning assembly is provided below the oil pipe (201).

3. A hydraulic cylinder assembly according to claim 2, characterized in that: A group of cleaning ring seat push rods (202) for pushing the cleaning ring seat (203) to move left and right are provided at both left and right ends of the inner side of the outer cylinder body. A cleaning ring seat (203) is provided at the lower end of the cleaning ring seat push rod (202) away from the center of the push rod cleaning assembly (200).

4. A hydraulic cylinder assembly according to claim 3, characterized in that: Three groups of spring components (204) equally distributed in a circumference are arranged on the inner side of the cleaning ring seat (203), and three groups of cleaning plates (205) are arranged on the inner side of the spring component (204).

5. A hydraulic cylinder assembly according to claim 4, characterized in that: The three groups of cleaning plates (205) form a group of circular rings, and the outer inner side surfaces of the cleaning plates (205) fit with the outer side surface of the push rod (102), and the interior of the oil pipe (201) is connected with the interior of the outer cylinder of the cleaning component.

6. A hydraulic cylinder assembly according to claim 1, characterized in that: The three groups of guide support columns (104) are equally distributed on the circumference, the outer side surface of the ball seat (105) is provided with a plurality of groups of oil inlet holes (108), and the inner side surface of the ball seat (105) is provided with a group of oil grooves (107).

7. A hydraulic cylinder assembly according to claim 6, characterized in that: The oil groove (107) and the plurality of groups of oil inlet holes (108) are interconnected, and the outer side surface of the ball body (106) and the inner side surface of the oil cylinder outer shell (101) are in contact with each other.

Images