CN215634096U - Telescopic cylinder, roller device and working machine - Google Patents
Telescopic cylinder, roller device and working machine Download PDFInfo
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- CN215634096U CN215634096U CN202121762213.XU CN202121762213U CN215634096U CN 215634096 U CN215634096 U CN 215634096U CN 202121762213 U CN202121762213 U CN 202121762213U CN 215634096 U CN215634096 U CN 215634096U
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Abstract
The utility model provides a telescopic cylinder, a roller device and an operating machine. This telescoping cylinder includes: cylinder and bulb structure, bulb structural connection are in the one end of cylinder, and bulb structure and cylinder formula structure as an organic whole, and the inside first passageway that is used for carrying the carrier medium that is equipped with of bulb structure, through processing cylinder and bulb structure formula structure as an organic whole, simple structure, the integral type structure has the advantage that mechanical strength is high, reduces fatigue damage or cracked probability appear in the joint bearing, improves life, reduces the change number of times, the cost is reduced. The utility model also provides a roller device and an operation machine, which have the advantage of long service life due to the integral structure of the cylinder barrel and the ball head structure.
Description
Technical Field
The utility model relates to the technical field of hydraulic cylinders, in particular to a telescopic cylinder, a roller device and an operating machine.
Background
The excavator is a fast excavating machine for roadway excavation or coal excavation, and is provided with an inner cutting drum, outer cutting drums arranged at two sides of the inner cutting drum and a telescopic cutting drum. The telescopic oil cylinder is fixed in the telescopic cutting drum and is rotationally connected with the outer cutting drum.
At present, the bottom of a telescopic oil cylinder is generally manufactured into a ball head shape, and the ball head-shaped cylinder bottom is rotatably connected into an external cutting drum through a joint bearing. The rigidity of hydro-cylinder is relatively poor, and joint bearing bears great axial load to factors such as localization and construction tunnel angle change can produce frequent vibration and impact load, lead to joint bearing to appear fatigue damage or cracked, and life reduces by a wide margin, influences normal construction, and it is higher to change joint bearing cost moreover.
SUMMERY OF THE UTILITY MODEL
The utility model provides a telescopic cylinder, a roller device and an operation machine, which are used for solving the defects that in the prior art, the rigidity of an oil cylinder is poor, a joint bearing is easy to generate fatigue damage or crack, and the service life is greatly shortened.
The utility model provides a telescopic cylinder, comprising: the ball head structure is connected to one end of the cylinder barrel, the ball head structure and the cylinder barrel are of an integrated structure, and a first passage for conveying a carrier medium is arranged inside the ball head structure.
According to the telescopic cylinder provided by the utility model, the telescopic cylinder further comprises a piston and a piston rod, the piston is fixed at one end of the piston rod, a channel for the movement of the piston and the piston rod is constructed in the cylinder barrel, and the outlet of the first passage is communicated with the first end surface of the piston.
The telescopic cylinder further comprises a valve seat, wherein the valve seat is provided with a first oil port and a second oil port, the first oil port is communicated with an inlet of the first passage, a first cavity is formed between the first end face of the piston and the inner wall of the cylinder barrel, an outlet of the first passage is communicated with the first cavity, a second cavity is formed between the second end face of the piston, the outer side face of the piston rod and the inner side wall of the cylinder barrel, and the second oil port is communicated with the second cavity through a second passage.
According to the telescopic cylinder provided by the utility model, the telescopic cylinder further comprises a first guide ring and a first sealing ring, and the first guide ring and the first sealing ring are arranged on the outer peripheral side of the piston.
The telescopic cylinder further comprises a second sealing ring, and the second sealing ring is arranged at the joint of the piston and the piston rod.
The telescopic cylinder further comprises a guide sleeve and a cylinder bottom, wherein the guide sleeve and the cylinder bottom are respectively fixed at two ends of the cylinder barrel, and the guide sleeve is located on the inner side of the cylinder barrel.
The telescopic cylinder further comprises a third sealing ring, a retainer ring and a fourth sealing ring, wherein the third sealing ring, the retainer ring and the fourth sealing ring are arranged between the outer side wall of the guide sleeve and the inner side wall of the cylinder barrel.
The telescopic cylinder further comprises a second guide ring, a fifth sealing ring, a sixth sealing ring and a dustproof ring, wherein the second guide ring, the fifth sealing ring, the sixth sealing ring and the dustproof ring are all arranged on the inner side wall of the guide sleeve.
The present invention also provides a drum device including: the cutting machine comprises an inner cutting drum, outer cutting drums arranged on two sides of the inner cutting drum and a telescopic cutting drum, wherein a telescopic cylinder is arranged in the telescopic cutting drum, and a ball head structure of the telescopic cylinder is rotatably connected with the outer cutting drums through a joint bearing.
The utility model also provides a working machine comprising the telescopic cylinder or the roller device.
According to the telescopic cylinder provided by the utility model, the cylinder barrel and the ball head structure are processed into an integrated structure, the structure is simple, the integrated structure has the advantage of high mechanical strength, the probability of fatigue damage or fracture of a joint bearing is reduced, the service life is prolonged, the replacement frequency is reduced, and the cost is reduced.
Furthermore, the utility model also provides a roller device, and the ball head structure and the cylinder barrel of the telescopic cylinder are of an integrated structure, so that the roller device has stronger mechanical strength, the defect of frequent replacement of the joint bearing is avoided, and the service life of the roller device is prolonged.
Furthermore, the present invention also provides a working machine including the telescopic cylinder of the present invention or the roller device of the present invention, which has an advantage of long service life.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a telescopic cylinder provided by the present invention;
FIG. 2 is a schematic top view of a telescoping cylinder provided in accordance with the present invention;
reference numerals:
1: a cylinder barrel; 2: a piston; 3: a piston rod;
4: a guide sleeve; 5: a first screw; 6: a first guide ring;
7: a first seal ring; 8: a second seal ring; 9: a protection plate;
10: a protection pad; 11: a second screw; 12: a second guide ring;
13: a third seal ring; 14: a retainer ring; 15: a fourth seal ring;
16: a fifth seal ring; 17: a sixth seal ring; 18: a dust ring;
19: a valve seat; 20: a cylinder bottom; 21: a ball head structure;
22: a first cavity; 23: a second cavity; 24: a first oil port;
25: a second oil port.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A telescopic cylinder according to the present invention will be described with reference to fig. 1 and 2. This telescoping cylinder includes: cylinder 1 and bulb structure 21, bulb structure 21 connects in the one end of cylinder 1, and bulb structure 21 and cylinder 1 formula structure as an organic whole, and bulb structure 21 is inside to be equipped with the first route that is used for carrying the carrier medium.
Specifically, the cylinder barrel 1 and the ball head structure 21 of the telescopic cylinder in this embodiment are integrally formed, and in the machining process, the ball head structure 21 may be a part of the cylinder barrel 1, and may be machined into the ball head structure 21 when one end of the cylinder barrel 1 is machined. The first passage inside the ball head structure 21 is used for inputting air or hydraulic oil, so that the piston 2 is pushed to move, and the telescopic action of the telescopic cylinder is realized.
Further, the telescopic cylinder may be an air cylinder or a hydraulic oil cylinder, and the first passage of the ball head structure 21 may be an oil passage through which hydraulic oil passes or an air passage through which air passes, depending on the difference of input carrier media. The following examples are illustrated with telescoping hydraulic rams.
According to the telescopic cylinder provided by the utility model, the cylinder barrel 1 and the ball head structure 21 are processed into an integrated structure, the structure is simple, the integrated structure has the advantage of high mechanical strength, the probability of fatigue damage or fracture of a joint bearing is reduced, the service life is prolonged, the replacement frequency is reduced, and the cost is reduced.
In one embodiment of the present invention, the telescopic cylinder further comprises a piston 2 and a piston rod 3, the piston 2 is fixed at one end of the piston rod 3, a channel for the movement of the piston 2 and the piston rod 3 is configured inside the cylinder barrel 1, and an outlet of the first channel is communicated with the first end surface of the piston 2. As shown in fig. 1, the piston 2 and the piston rod 3 can perform telescopic movement inside the cylinder 1, and hydraulic oil can enter through the first passage, thereby pushing the piston 2 to the right. Specifically, the piston 2 may be connected to the piston rod 3 by a thread, and the piston 2 is fixed to one end of the piston rod 3 by a first screw 5.
In one embodiment of the present invention, the telescopic cylinder further includes a valve seat 19, the valve seat 19 is provided with a first oil port 24 and a second oil port 25, the first oil port 24 is communicated with an inlet of a first passage, a first cavity 22 is formed between a first end surface of the piston 2 and an inner wall of the cylinder barrel 1, an outlet of the first passage is communicated with the first cavity 22, a second cavity 23 is formed between a second end surface of the piston 2, an outer side surface of the piston rod 3 and an inner side wall of the cylinder barrel 1, and the second oil port 25 is communicated with the second cavity 23 through the second passage. In the present embodiment, the first and second oil ports 24 and 25 on the valve seat 19 are used to deliver hydraulic oil to the first and second passages, respectively. As shown in fig. 1, the hydraulic oil delivered by the first passage enters the first cavity 22, thereby pushing the first end face of the piston 2 to move rightward; conversely, the hydraulic oil delivered by the second passage enters the second chamber 23, thereby pushing the second end face of the piston 2 to move leftward. The piston 2 and the piston rod 3 are driven to perform telescopic motion by supplying hydraulic oil to the first oil port 24 or the second oil port 25 through the valve seat 19.
Further, a valve seat 19 is fixed on the outer wall of the cylinder barrel 1 through a second screw 11, a protection plate 9 and a protection pad 10 are arranged above the valve seat 19, the protection plate 9 is a steel plate, and the protection pad 10 is made of butadiene acrylonitrile rubber.
In one embodiment of the present invention, the telescopic cylinder further comprises a first guide ring 6 and a first seal ring 7, and the first guide ring 6 and the first seal ring 7 are both disposed on the outer peripheral side of the piston 2. In the present embodiment, the guide ring mainly plays a role in supporting and guiding the piston 2 and the piston rod 3, and the first sealing ring 7 mainly plays a role in sealing the first cavity 22 and the second cavity 23. Specifically, a groove for placing the first guide ring 6 and the first seal ring 7 may be provided on the outer peripheral side of the piston 2, respectively.
In one embodiment of the present invention, the telescopic cylinder further includes a second sealing ring 8, the second sealing ring 8 is disposed at a joint of the piston 2 and the piston rod 3, and the second sealing ring 8 is used to ensure that no hydraulic oil passes between the piston 2 and the piston rod 3.
In one embodiment of the present invention, the telescopic cylinder further includes a guide sleeve 4 and a cylinder bottom 20, the guide sleeve 4 and the cylinder bottom 20 are respectively fixed at two ends of the cylinder barrel 1, and the guide sleeve 4 is located inside the cylinder barrel 1. In this embodiment, the cylinder bottom 20 seals one end of the cylinder tube 1 to prevent hydraulic oil from leaking, and the guide sleeve 4 mainly plays a role in supporting and guiding the piston rod 3.
In one embodiment of the present invention, the telescopic cylinder further includes a third sealing ring 13, a retainer ring 14 and a fourth sealing ring 15, and the third sealing ring 13, the retainer ring 14 and the fourth sealing ring 15 are all disposed between the outer side wall of the guide sleeve 4 and the inner side wall of the cylinder barrel 1. In the present embodiment, the third seal ring 13 and the fourth seal ring 15 seal the space between the guide sleeve 4 and the cylinder tube 1, and the retainer ring 14 serves as a support.
In one embodiment of the present invention, the telescopic cylinder further comprises a second guide ring 12, a fifth sealing ring 16, a sixth sealing ring 17 and a dust ring 18, wherein the second guide ring 12, the fifth sealing ring 16, the sixth sealing ring 17 and the dust ring 18 are all disposed on the inner side wall of the guide sleeve 4. In this embodiment, the second guide ring 12 guides the piston rod 3, the fifth sealing ring 16 and the sixth sealing ring 17 seal the piston rod 3 and the guide sleeve 4, and the dust-proof ring 18 prevents dust from entering the telescopic cylinder.
It will be appreciated that channels should be provided to accommodate the above-described sealing rings, retaining rings 14, guide rings, and wiper rings 18, etc. The first guide ring 6 and the second guide ring 12 are JT guide rings and are made of phenolic clamping cloth materials, the first sealing ring 7 is a ZW sealing ring, the second sealing ring 8, the third sealing ring 13 and the fourth sealing ring 15 are O-shaped rings, the fifth sealing ring 16 is a GSJ sealing ring, the sixth sealing ring 17 is a ZBR sealing ring, the check ring 14 is made of polytetrafluoroethylene materials, and the dust-proof ring 18 is an AY dust-proof ring 18.
The utility model also provides a roller device. The roller device includes: interior cutting drum, set up including outer cutting drum and the flexible cutting drum of cutting drum both sides, be provided with the telescopic cylinder of above-mentioned embodiment in the flexible cutting drum, the bulb structure 21 of telescopic cylinder passes through joint bearing and is connected with outer cutting drum rotation.
According to the roller device provided by the utility model, as the ball head structure 21 of the telescopic cylinder and the cylinder barrel 1 are of an integrated structure, the roller device has stronger mechanical strength, the defect of frequent replacement of a joint bearing is avoided, and the service life of the roller device is prolonged.
The utility model also provides a working machine which can be a crane, a mobile pump station or a fire engine and the like. The embodiment discloses an excavating and anchoring machine which comprises the telescopic cylinder of the embodiment or the roller device of the embodiment, and the excavating and anchoring machine has the advantage of long service life.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A telescopic cylinder, comprising: the ball head structure is connected to one end of the cylinder barrel, the ball head structure and the cylinder barrel are of an integrated structure, and a first passage for conveying a carrier medium is arranged inside the ball head structure.
2. The telescopic cylinder as claimed in claim 1, further comprising a piston and a piston rod, wherein the piston is fixed to one end of the piston rod, a channel for the movement of the piston and the piston rod is formed inside the cylinder, and the outlet of the first passage is communicated with the first end surface of the piston.
3. The telescopic cylinder according to claim 2, further comprising a valve seat, wherein the valve seat is provided with a first oil port and a second oil port, the first oil port is communicated with an inlet of the first passage, a first cavity is formed between a first end surface of the piston and an inner wall of the cylinder barrel, an outlet of the first passage is communicated with the first cavity, a second cavity is formed between a second end surface of the piston, an outer side surface of the piston rod and an inner side wall of the cylinder barrel, and the second oil port is communicated with the second cavity through a second passage.
4. A telescopic cylinder according to claim 2, further comprising a first guide ring and a first seal ring, both of which are provided on the outer peripheral side of the piston.
5. A telescopic cylinder according to claim 2, further comprising a second sealing ring, the second sealing ring being provided at the junction of the piston and the piston rod.
6. The telescopic cylinder as claimed in claim 2, further comprising a guide sleeve and a cylinder bottom, wherein the guide sleeve and the cylinder bottom are respectively fixed at two ends of the cylinder barrel, and the guide sleeve is located at the inner side of the cylinder barrel.
7. The telescoping cylinder of claim 6, further comprising a third seal ring, a retainer ring, and a fourth seal ring, the third seal ring, the retainer ring, and the fourth seal ring all disposed between the outer sidewall of the guide sleeve and the inner sidewall of the cylinder barrel.
8. The telescoping cylinder of claim 6, further comprising a second guide ring, a fifth seal ring, a sixth seal ring and a dust ring, wherein the second guide ring, the fifth seal ring, the sixth seal ring and the dust ring are all disposed on the inner side wall of the guide sleeve.
9. A roller device, comprising: the cutting machine comprises an inner cutting drum, outer cutting drums arranged on two sides of the inner cutting drum and a telescopic cutting drum, wherein a telescopic cylinder according to any one of claims 1-8 is arranged in the telescopic cutting drum, and the ball head structure of the telescopic cylinder is rotatably connected with the outer cutting drums through joint bearings.
10. A working machine comprising a telescopic cylinder according to any one of claims 1 to 8 or a roller device according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121762213.XU CN215634096U (en) | 2021-07-30 | 2021-07-30 | Telescopic cylinder, roller device and working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121762213.XU CN215634096U (en) | 2021-07-30 | 2021-07-30 | Telescopic cylinder, roller device and working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215634096U true CN215634096U (en) | 2022-01-25 |
Family
ID=79893604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121762213.XU Active CN215634096U (en) | 2021-07-30 | 2021-07-30 | Telescopic cylinder, roller device and working machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215634096U (en) |
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2021
- 2021-07-30 CN CN202121762213.XU patent/CN215634096U/en active Active
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