CN216767936U - Hydraulic cylinder with buffering function - Google Patents
Hydraulic cylinder with buffering function Download PDFInfo
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- CN216767936U CN216767936U CN202220079863.2U CN202220079863U CN216767936U CN 216767936 U CN216767936 U CN 216767936U CN 202220079863 U CN202220079863 U CN 202220079863U CN 216767936 U CN216767936 U CN 216767936U
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- buffering
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Abstract
The utility model discloses a hydraulic cylinder with a buffering function, and relates to the technical field of hydraulic cylinders. In the utility model: one side of cylinder body disposes the buffering axostylus axostyle that one end stretches into first hydraulic pressure intracavity, and the side that the buffering axostylus axostyle stretches into first hydraulic pressure intracavity disposes the rubber piece with axostylus axostyle buffering end position matched with. A limiting ring surface positioned in the first hydraulic cavity is arranged in the cylinder body, and the limiting ring surface is in limiting fit with the edge area of the end side surface of the piston. An installation vacancy positioned at the inner side of the middle supporting plate is formed between the cylinder body and the bottom matching base, and the buffer shaft rod movably penetrates through the installation vacancy and the middle supporting plate. The buffering shaft lever is provided with a propelling limit disc positioned in the installation vacancy area in a positioning mode, and the buffering shaft lever is sleeved with a tension spring. According to the utility model, through the buffer matching of the buffer shaft lever and the hydraulic shaft lever in the cylinder body, the buffer deceleration of the hydraulic shaft lever is realized, and the high-speed stop impact of a large descending speed on an object connected or supported by the hydraulic shaft lever is avoided.
Description
Technical Field
The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder with a buffering function.
Background
The hydraulic cylinder is a very common hydraulic actuating element in the industrial and mechanical processing production and manufacturing processes, has simple structure and simple and reliable operation, can avoid a speed reducer when realizing reciprocating motion by the hydraulic cylinder, has no transmission clearance and moves stably, and is widely applied to hydraulic systems of various machines.
In the moving process of the hydraulic cylinder, especially in some situations with large push-pull power, the moving speed of the hydraulic shaft rod of the hydraulic cylinder is difficult to reduce to a lower value before the movement is stopped, and long-term past, mechanical structures or objects driven by the hydraulic shaft rod are subjected to more impacts and larger abrasion. Therefore, the buffer deceleration of the hydraulic shaft rod is realized in the use process of the hydraulic cylinder, and the problem to be solved in the driving process of the hydraulic cylinder is solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a hydraulic cylinder with a buffering function, wherein the buffering and deceleration of a hydraulic shaft rod are realized through the buffering and matching of a buffering shaft rod and the hydraulic shaft rod in a cylinder body, so that the high-speed stop impact of a large descending speed on an object connected with or supported by the hydraulic shaft rod is avoided.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to a hydraulic cylinder with a buffering function, which comprises a cylinder body and a hydraulic shaft rod movably matched with the cylinder body, wherein a piston arranged at one side end of the hydraulic shaft rod is arranged in the cylinder body, a first hydraulic cavity positioned at one side of the piston and a second hydraulic cavity positioned at the other side of the piston are arranged in the cylinder body, and a first hydraulic communication hole communicated with the first hydraulic cavity and a second hydraulic communication hole communicated with the second hydraulic cavity are arranged on the cylinder body. The hydraulic shaft rod side comprises a shaft rod buffering end protruding out of the piston, the shaft rod buffering end is located in the first hydraulic cavity, one side of the cylinder body is provided with a buffering shaft rod, one end of the buffering shaft rod stretches into the first hydraulic cavity, and the side end of the buffering shaft rod stretching into the first hydraulic cavity is provided with a rubber block matched with the position of the shaft rod buffering end.
A limiting ring surface positioned in the first hydraulic cavity is arranged in the cylinder body, and the limiting ring surface is in limiting fit with the edge area of the end side surface of the piston. Cylinder body one end block fixedly connected with bottom cooperation base, bottom cooperation base include the intermediate bottom support board, form the installation vacancy that is located the inboard position of intermediate bottom support board between cylinder body and the bottom cooperation base, and the activity of buffer shaft pole passes installation vacancy and intermediate bottom support board. The buffering shaft lever is provided with a propelling limit disc positioned in the installation vacancy area in a positioning mode, and the buffering shaft lever is sleeved with a tension spring positioned between the propelling limit disc and the middle supporting plate.
As a preferred technical scheme of the hydraulic cylinder with the buffer function in the utility model: one end of the cylinder body is provided with a buffer rod hole used for installing a buffer shaft rod in a matching way.
As a preferred technical scheme of the hydraulic cylinder with the buffer function in the utility model: and a rubber gasket matched with the edge area of the side surface of the piston is embedded and arranged at the position of the limiting ring surface.
As a preferred technical scheme of the hydraulic cylinder with the buffer function in the utility model: the middle supporting plate is provided with a lower rod hole, and the buffer shaft lever movably penetrates through the lower rod hole of the middle supporting plate.
As a preferred technical scheme of the hydraulic cylinder with the buffer function in the utility model: the adjusting hole has been seted up to the spacing dish of propulsion, and the buffering axostylus axostyle passes the adjusting hole who impels the spacing dish, and the screw thread through-hole that link up mutually with the adjusting hole is seted up to the lateral ring that impels the spacing dish, and the fixing bolt who is used for fixed spacing dish position on the buffering axostylus axostyle of propulsion is installed to the screw thread through-hole of impelling spacing dish lateral ring position.
As a preferred technical scheme of the hydraulic cylinder with the buffer function in the utility model: the cylinder body includes fixed cardboard bedplate, and bottom cooperation base is including last fixed cardboard, and the fixed cardboard block installation of the fixed cardboard bedplate of cylinder body and the last fixed cardboard block of bottom cooperation base is consolidated through the bolt nut.
As a preferred technical scheme of the hydraulic cylinder with the buffer function in the utility model: and bottom side fixing substrates for fixedly mounting the bottom matching base are arranged on two sides of the bottom end of the bottom matching base.
Compared with the prior art, the utility model has the beneficial effects that:
according to the hydraulic cylinder, the buffer shaft lever is arranged at the opposite side end of the hydraulic shaft lever of the hydraulic cylinder body, the tension spring for buffering is arranged on the buffer shaft lever, and the buffer shaft lever and the hydraulic shaft lever are in buffering fit in the cylinder body, so that the buffer deceleration of the hydraulic shaft lever is realized, and the high-speed stop impact of a large descending speed on an object connected with or supported by the hydraulic shaft lever is avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of a hydraulic cylinder with a cushion function according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partially enlarged view of the structure at B in FIG. 1;
wherein: 1-cylinder body, 101-first hydraulic cavity, 102-second hydraulic cavity, 103-first hydraulic communication hole, 104-second hydraulic communication hole, 105-hydraulic shaft rod, 106-piston, 107-shaft rod buffer end, 108-limiting ring surface, 109-fixing clamp plate and 110-buffer rod hole; 2-a buffer shaft lever; 3-bottom matching base, 301-installation vacancy, 302-middle support plate, 303-upper fixing clamping plate, 304-bottom side fixing base plate, 305-lower rod hole; 4-a rubber block; 5-pushing a limiting disc, 501-adjusting holes; 6-fixing the bolt; 7-tension spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example one
Referring to fig. 1, 2 and 3, in the present invention, the hydraulic cylinder includes a first hydraulic chamber 101 and a second hydraulic chamber 102, a first hydraulic communication hole 103 is formed at one side of the first hydraulic chamber 101, and a second hydraulic communication hole 104 is formed at one side of the second hydraulic chamber 102. The cylinder body 1 is movably provided with a hydraulic shaft 105 which moves directionally, a buffer shaft 2 is arranged in a first hydraulic cavity 101 at the lower side of a piston 106, a rubber block 4 is arranged at the end side of the buffer shaft 2, the rubber block 4 is positioned in the first hydraulic cavity 101, and the rubber block 4 just faces to a shaft buffer end 107 of the hydraulic shaft 105.
The bottom fitting base 3 is fitted to the lower side of the cylinder 1, the buffer shaft rod 2 is inserted downward into the bottom fitting base 3, and the lower end of the buffer shaft rod 2 passes through the lower rod hole 305 of the intermediate support plate 302. An installation vacancy 301 is formed between the cylinder body 1 and the bottom matching base 3, the buffer shaft rod 2 penetrates through the installation vacancy 301, the buffer shaft rod 2 of the installation vacancy 301 is provided with the pushing limiting disc 5, the buffer shaft rod 2 is also provided with the tension spring 7, the tension spring 7 is positioned between the pushing limiting disc 5 and the middle support plate 302, one end of the tension spring 7 is fixedly connected onto the pushing limiting disc 5, the other end of the tension spring 7 is fixedly connected onto the middle support plate 302, and therefore the initial position of the buffer shaft rod 2 can be limited.
Example two
Referring to fig. 1, 2 and 3, in the present invention, when the first hydraulic chamber 101 is depressurized and the second hydraulic chamber 102 is pressurized, the hydraulic shaft 105 and the piston 106 move toward the first hydraulic chamber 101, the shaft buffer end 107 on the end side of the hydraulic shaft 105 moves downward, the shaft buffer end 107 contacts the rubber block 4 on the end side of the buffer shaft 2, then the buffer shaft 2 and the hydraulic shaft 105 descend synchronously, the tension spring 7 at the installation vacancy starts to buffer the movement of the buffer shaft 2 until the piston 106 contacts the limit ring surface 108 in the cylinder 1 [ the hydraulic shaft 105 reaches the stop position ], the descending speed of the hydraulic shaft 105 is gradually reduced, the descending speed of the hydraulic shaft 105 is already low under the action of the buffer shaft 2 [ the descending of the tension spring 7 is more obvious with the descending), and when the hydraulic shaft 105 descends to the lowest position, the rate of descent of the object to which the hydraulic shaft 105 is connected or supported is also low, with less impact force, less wear, etc. when the object is stopped.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the utility model, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (7)
1. Pneumatic cylinder with buffer function, including cylinder body (1) and hydraulic shaft pole (105) with cylinder body (1) clearance fit installation, dispose piston (106) of installing at hydraulic shaft pole (105) one side in cylinder body (1), be equipped with in cylinder body (1) and be located first hydraulic pressure chamber (101) of piston (106) one side and be located second hydraulic pressure chamber (102) of piston (106) opposite side, dispose on cylinder body (1) with first hydraulic pressure chamber (101) the first hydraulic pressure intercommunicating hole (103) of intercommunication and with second hydraulic pressure chamber (102) the second hydraulic pressure intercommunicating hole (104) of intercommunication, its characterized in that:
the end side of the hydraulic shaft rod (105) comprises a shaft rod buffering end (107) protruding out of the piston (106), the shaft rod buffering end (107) is located in the first hydraulic cavity (101), one side of the cylinder body (1) is provided with a buffering shaft rod (2) with one end extending into the first hydraulic cavity (101), and the side end, extending into the first hydraulic cavity (101), of the buffering shaft rod (2) is provided with a rubber block (4) matched with the shaft rod buffering end (107);
a limiting ring surface (108) positioned in the first hydraulic cavity (101) is arranged in the cylinder body (1), and the limiting ring surface (108) is in limiting fit with the edge area of the end side surface of the piston (106);
one end of the cylinder body (1) is fixedly connected with a bottom matching base (3) in a clamping mode, the bottom matching base (3) comprises a middle supporting plate (302), an installation vacancy (301) located in the inner side direction of the middle supporting plate (302) is formed between the cylinder body (1) and the bottom matching base (3), and the buffer shaft rod (2) movably penetrates through the installation vacancy (301) and the middle supporting plate (302);
the buffer shaft lever (2) is provided with a pushing limiting disc (5) positioned in the region of the installation vacancy (301) in a positioning mode, and the buffer shaft lever (2) is sleeved with a tension spring (7) positioned between the pushing limiting disc (5) and the middle supporting plate (302).
2. The hydraulic cylinder with a cushioning function according to claim 1, characterized in that:
one end of the cylinder body (1) is provided with a buffer rod hole (110) used for being matched with and installing the buffer shaft rod (2).
3. The hydraulic cylinder with a cushioning function according to claim 1, characterized in that:
and a rubber gasket matched with the edge area of the end side surface of the piston (106) is embedded and arranged at the position of the limiting ring surface (108).
4. The hydraulic cylinder with a cushioning function according to claim 1, characterized in that:
the middle support plate (302) is provided with a lower rod hole (305), and the buffer shaft rod (2) movably penetrates through the lower rod hole (305) of the middle support plate (302).
5. The hydraulic cylinder with a cushioning function according to claim 1, characterized in that:
the buffer shaft lever is characterized in that an adjusting hole (501) is formed in the propelling limiting disc (5), the buffer shaft lever (2) penetrates through the adjusting hole (501) of the propelling limiting disc (5), a threaded through hole communicated with the adjusting hole (501) is formed in the annular side of the propelling limiting disc (5), and a fixing bolt (6) used for fixing the position of the propelling limiting disc (5) on the buffer shaft lever (2) is installed in the threaded through hole in the annular side position of the propelling limiting disc (5).
6. The hydraulic cylinder with a cushioning function according to claim 1, characterized in that:
the cylinder body (1) includes fixed cardboard bedplate (109), bottom cooperation base (3) are including last fixed cardboard (303), the installation of fixed cardboard (303) block on the fixed cardboard bedplate (109) of cylinder body (1) and the last fixed cardboard (303) of bottom cooperation base (3) is consolidated through the bolt nut.
7. The hydraulic cylinder with a cushioning function according to claim 1, characterized in that:
and bottom side fixing substrates (304) for fixedly mounting the bottom matching base (3) are arranged on two sides of the bottom end of the bottom matching base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220079863.2U CN216767936U (en) | 2022-01-12 | 2022-01-12 | Hydraulic cylinder with buffering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220079863.2U CN216767936U (en) | 2022-01-12 | 2022-01-12 | Hydraulic cylinder with buffering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216767936U true CN216767936U (en) | 2022-06-17 |
Family
ID=81976157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220079863.2U Active CN216767936U (en) | 2022-01-12 | 2022-01-12 | Hydraulic cylinder with buffering function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216767936U (en) |
-
2022
- 2022-01-12 CN CN202220079863.2U patent/CN216767936U/en active Active
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