CN210565920U - Double-spring double-cylinder hydraulic brake oil cylinder - Google Patents
Double-spring double-cylinder hydraulic brake oil cylinder Download PDFInfo
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- CN210565920U CN210565920U CN201920855904.0U CN201920855904U CN210565920U CN 210565920 U CN210565920 U CN 210565920U CN 201920855904 U CN201920855904 U CN 201920855904U CN 210565920 U CN210565920 U CN 210565920U
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Abstract
The utility model relates to a double spring double-cylinder body hydraulic brake hydro-cylinder, including piston rod and cover spring cylinder and the hydraulic cylinder on the piston rod be provided with main spring and assistance spring in the spring cylinder, main spring, assistance spring are all installed on the spring holder, the spring holder sets up and can follow the spring cylinder and remove be provided with the piston in the hydraulic cylinder, and the hydraulic cylinder is last to have the hydraulic fluid port. The utility model has the advantages of design benefit, convenient operation has realized the stopper standardization and the serialization of different brake force size, has not only improved brake force, has still saved hydraulic oil flow, has shortened brake off-going time to reach better brake purpose.
Description
Technical Field
The utility model relates to a double spring double-cylinder body hydraulic brake hydro-cylinder belongs to hydraulic cylinder technical field.
Background
The hydraulic brake cylinder is one of the important parts of the hydraulic brake and mainly provides automatic braking force for the hydraulic brake. At present, a single-cylinder hydraulic oil cylinder of a cylindrical compression spring is commonly used for a hydraulic brake oil cylinder.
As known, the cylinder compression spring adopted by the existing single-cylinder hydraulic brake cylinder is a nonstandard part, the size and the length of the spring used by the cylinder are different due to different braking force of each brake, the standardization and the serialization of production and manufacturing are not facilitated, and for the brake with large braking force, the spring of the hydraulic cylinder is thick, the cylinder barrel of the cylinder is large in size, so that the flow of hydraulic oil required by the cylinder is also large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the defects in the prior art, the double-spring double-cylinder hydraulic brake oil cylinder is standardized and systematically designed.
In order to achieve the above purpose, the utility model provides a double spring double-cylinder body hydraulic brake hydro-cylinder, including piston rod and cover spring cylinder and the hydraulic cylinder on the piston rod be provided with main spring and assistance spring in the spring cylinder, main spring, assistance spring all install on the spring holder, the spring holder sets up in the spring cylinder and can follow the spring cylinder and remove be provided with the piston in the hydraulic cylinder, and the hydraulic cylinder is last to have the hydraulic fluid port.
The utility model discloses a hydraulic brake hydro-cylinder adopts two cylindrical compression spring to and big, two little cylinder bodies. The automatic braking force of the brake is determined by the working load of the spring, so that an auxiliary spring is embedded in the main spring to increase the working load of the spring, and further the braking force of the brake is improved. Meanwhile, the flow of the hydraulic oil determines the brake release time, and the hydraulic oil works in a smaller hydraulic cylinder barrel, so that the brake release time can be obviously shortened. The utility model discloses with the overall dimension of main spring's size solidification brake cylinder, required brake braking force can be obtained to rethread transform auxiliary spring and adjustment hydraulic oil pressure. No matter the braking force of the brake is large or small, the size of the cylinder body is unchanged, and because the size of the cylinder body is fixed, the mounting interface of the oil cylinder is unchanged, the flow required by the brake release is also unchanged, and the design standardization and the serialization of a mechanical structure and a hydraulic system are facilitated.
Furthermore, the spring cylinder barrel is connected with the hydraulic cylinder barrel, a gland is arranged at the outer end of the spring cylinder barrel, and a hydraulic cylinder cover is arranged at the outer end of the hydraulic cylinder barrel.
Further, the piston rod passes hydraulic cylinder lid, piston, spring holder and gland in proper order, and the piston rod can follow the piston rod hole of hydraulic cylinder lid, the piston rod hole slip of gland be provided with a set of sealing washer and guidance tape between the piston rod and the piston rod downthehole wall of gland be provided with a set of sealing washer between the piston rod and the piston rod downthehole wall of hydraulic cylinder lid.
Furthermore, the piston rod is of a stepped structure, and a ball bearing and a thrust ball bearing are sleeved in the middle of the piston rod.
In the above-described structure, the ball bearing and the thrust ball bearing are provided to reduce friction generated by mutual rotation between the spring seat and the piston rod. The spring force acts on the piston rod through the spring seat, the friction force between the piston rod and the spring seat is large when the piston rod rotates, and the increased thrust ball bearing can reduce the friction between the piston rod and the spring seat; and the ball bearing can reduce the radial friction between the piston rod and the spring seat when the piston rod rotates.
Further, spring seats are arranged on the piston rod and located at the ball bearing and the thrust ball bearing. Thus, the spring seat is fixedly arranged on the piston rod through the ball bearing and the thrust ball bearing.
Furthermore, a sealing ring and a guide belt are arranged between the spring seat and the inner wall of the spring cylinder, and a group of sealing rings and guide belts are arranged between the piston and the inner wall of the hydraulic cylinder.
Furthermore, the gland is fixedly connected with the side wall of the spring cylinder barrel through a first bolt.
Furthermore, the side wall of the spring cylinder barrel is fixedly connected with the side wall protruding part of the hydraulic cylinder barrel through a second bolt.
The utility model has the advantages of design benefit, convenient operation has realized the stopper standardization and the serialization of different brake force size, has not only improved brake force, has still saved hydraulic oil flow, has shortened brake off-going time to reach better brake purpose.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the hydraulic cylinder comprises a piston rod, 2 parts of a gland, 3 parts of a first sealing ring and a guide belt, 4 parts of a spring cylinder, 5 parts of a main spring, 6 parts of an auxiliary spring, 7 parts of a spring seat, 8 parts of a ball bearing, 9 parts of a thrust ball bearing, 10 parts of a hydraulic cylinder, 11 parts of a piston, 12 parts of a second sealing ring and a guide belt, 13 parts of a third sealing ring and a guide belt, 14 parts of a hydraulic cylinder cover, 15 parts of an oil port, 16 parts of a second bolt, 17 parts of a fourth sealing ring and a guide belt, and 18 parts of a first bolt.
Detailed Description
Example one
The embodiment provides a double-spring double-cylinder hydraulic brake cylinder, the structure is shown in fig. 1, including piston rod 1 and spring cylinder 4 and hydraulic cylinder 10 of cover on piston rod 1, the cylinder size of spring cylinder 4 is bigger than the cylinder size of hydraulic cylinder 10, spring cylinder 4 links to each other with hydraulic cylinder 10, be equipped with gland 2 in the outer end of spring cylinder 4, be equipped with hydraulic cylinder lid 14 in the outer end of hydraulic cylinder 10, gland 2 is through the lateral wall fixed connection of first bolt 18 with spring cylinder 4, the lateral wall of spring cylinder 4 passes through the lateral wall bulge fixed connection of second bolt 16 with hydraulic cylinder 10, hydraulic cylinder lid 14 welds on the outer terminal surface of hydraulic cylinder 10. Be provided with main spring 5 and auxiliary spring 6 in spring cylinder 4, inlay set auxiliary spring 6 in the main spring 5 to the equal fixed mounting of one end of main spring 5, auxiliary spring 6 is on spring holder 7, and spring holder 7 sets up in spring cylinder 4 and can follow spring cylinder 4 and remove, is provided with piston 11 in hydraulic cylinder 10, and has hydraulic fluid port 15 on the hydraulic cylinder 10.
In addition, the piston rod 1 is of a stepped structure, the piston rod 1 sequentially penetrates through the hydraulic cylinder cover 14, the piston 11, the spring seat 7 and the gland 2, the piston rod 1 can slide along a piston rod hole of the hydraulic cylinder cover 14 and a piston rod hole of the gland 2, and the piston 11 and the spring seat 7 are fixedly installed on the piston rod 1. The middle part of the piston rod 1 is sleeved with a ball bearing 8 and a thrust ball bearing 9, and a spring seat 7 is arranged on the piston rod 1 at the position of the ball bearing 8 and the thrust ball bearing 9. A first sealing ring and a guide belt 3 are arranged between the piston rod 1 and the inner wall of a piston rod hole of the gland 2, a third sealing ring and a guide belt are arranged between the piston rod 1 and the inner wall of a piston rod hole of the hydraulic cylinder cover 14, a fourth sealing ring and a guide belt 17 are arranged between the spring seat 7 and the inner wall of the spring cylinder 4, and a second sealing ring and a guide belt 12 are arranged between the piston 11 and the inner wall of the hydraulic cylinder 10.
The main spring 5 and the auxiliary spring 6 in the hydraulic brake cylinder of the embodiment provide automatic braking force for the hydraulic brake. When the hydraulic cylinder works, hydraulic oil enters a small cavity of the hydraulic cylinder barrel 10 to push the piston 11 to move leftwards, so that the piston rod 1 is driven to move leftwards, the spring force needs to be overcome in the process that the piston rod 1 moves leftwards, and the piston rod 1 moves leftwards to brake and disengage. When the brake is needed, the hydraulic oil is stopped being supplied to the hydraulic cylinder 10, then the main spring 5 and the auxiliary spring 6 are automatically reset, the restoring force pushes the spring seat 7 to move rightwards, and further the piston rod 1 is driven to move rightwards, and the brake is tightly braked.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (8)
1. The utility model provides a double spring double cylinder body hydraulic brake hydro-cylinder which characterized in that: the hydraulic cylinder comprises a piston rod, a spring cylinder barrel and a hydraulic cylinder barrel, wherein the spring cylinder barrel and the hydraulic cylinder barrel are sleeved on the piston rod, a main spring and an auxiliary spring are arranged in the spring cylinder barrel, the main spring and the auxiliary spring are both installed on a spring seat, the spring seat is arranged in the spring cylinder barrel and can move along the spring cylinder barrel, a piston is arranged in the hydraulic cylinder barrel, and an oil port is formed in the hydraulic cylinder barrel.
2. The dual-spring dual-cylinder hydraulic brake cylinder of claim 1, wherein: the spring cylinder barrel is connected with the hydraulic cylinder barrel, a gland is arranged at the outer end of the spring cylinder barrel, and a hydraulic cylinder cover is arranged at the outer end of the hydraulic cylinder barrel.
3. The dual-spring dual-cylinder hydraulic brake cylinder of claim 2, wherein: the piston rod sequentially penetrates through the hydraulic cylinder cover, the piston, the spring seat and the gland, a group of sealing rings and a guide belt are arranged between the piston rod and the inner wall of a piston rod hole of the gland, and a group of sealing rings are arranged between the piston rod and the inner wall of the piston rod hole of the hydraulic cylinder cover.
4. The dual-spring dual-cylinder hydraulic brake cylinder of claim 1, wherein: the piston rod is of a stepped structure, and a ball bearing and a thrust ball bearing are sleeved in the middle of the piston rod.
5. The dual-spring dual-cylinder hydraulic brake cylinder of claim 4, wherein: spring seats are arranged on the piston rod at the ball bearings and the thrust ball bearings.
6. The dual-spring dual-cylinder hydraulic brake cylinder of claim 5, wherein: and a group of sealing rings and guide belts are arranged between the piston and the inner wall of the hydraulic cylinder barrel.
7. The dual-spring dual-cylinder hydraulic brake cylinder of claim 2, wherein: the gland is fixedly connected with the side wall of the spring cylinder barrel through a first bolt.
8. The dual-spring dual-cylinder hydraulic brake cylinder of claim 1, wherein: and the side wall of the spring cylinder barrel is fixedly connected with the side wall bulge of the hydraulic cylinder barrel through a second bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920855904.0U CN210565920U (en) | 2019-06-06 | 2019-06-06 | Double-spring double-cylinder hydraulic brake oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920855904.0U CN210565920U (en) | 2019-06-06 | 2019-06-06 | Double-spring double-cylinder hydraulic brake oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210565920U true CN210565920U (en) | 2020-05-19 |
Family
ID=70622970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920855904.0U Active CN210565920U (en) | 2019-06-06 | 2019-06-06 | Double-spring double-cylinder hydraulic brake oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210565920U (en) |
-
2019
- 2019-06-06 CN CN201920855904.0U patent/CN210565920U/en active Active
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