CN210370647U - Shield tunneling machine profiling cutter oil cylinder with built-in cutter head combination - Google Patents
Shield tunneling machine profiling cutter oil cylinder with built-in cutter head combination Download PDFInfo
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- CN210370647U CN210370647U CN201921203134.8U CN201921203134U CN210370647U CN 210370647 U CN210370647 U CN 210370647U CN 201921203134 U CN201921203134 U CN 201921203134U CN 210370647 U CN210370647 U CN 210370647U
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Abstract
The utility model discloses a shield constructs quick-witted contour cutter hydro-cylinder of built-in tool bit combination belongs to pneumatic cylinder technical field. The piston type hydraulic cylinder comprises a cylinder barrel, wherein a piston rod is arranged in the cylinder barrel in a matched mode, and a piston is arranged on the piston rod; a guide sleeve matched with the piston rod is fixed at the front end of the cylinder barrel; the front side of the guide sleeve is provided with an outer guide section extending forwards; a cutter head combination is arranged in the outer guide section in a sliding fit mode and is fixedly arranged at the front end of the piston rod. The utility model has the advantages that the cutter head combination is arranged in the outer guide section extending from the front part of the guide sleeve, so that the structure of the independent guide cylinder is reduced, and the mechanism complexity of the profiling cutter is simplified and reduced; meanwhile, the piston rod and the piston are integrally connected with the cutter head in a combined mode, so that the straightness is better, and the stability and the side load resistance of the profiling cutter are enhanced; the cutter head combination is in threaded connection with the piston rod, so that the cutter head combination is easy to disassemble, and the cutter head is convenient to replace in a tunnel backpressure environment.
Description
Technical Field
The utility model relates to a pneumatic cylinder technical field specifically is a shield constructs quick-witted profiling cutter hydro-cylinder of built-in tool bit combination.
Background
With the rapid development of traffic transportation, water conservancy and urbanization tunnel engineering, shield construction is increasingly important in the construction of underground tunnel construction. The hydraulic cylinder is one of important parts on the shield machine as an actuating element of a hydraulic system of the shield machine. The profiling cutter is a necessary cutter in the shield construction process, is mainly used for performing radial overexcavation on a soil body during curve construction turning and deviation rectification in the shield construction process, and provides power for cutting of the profiling cutter through the profiling cutter hydraulic cylinder.
Because the shield machine cutter head has more cutters, the tunneling environment is severe, the structures of various cutter parts at the cutter head part are complex, the replacement of various cutters is difficult after the abrasion, and the side force borne by the copying cutter is large when the copying cutter is used for radially cutting soil bodies during turning, the copying cutter hydraulic cylinder which has the advantages of simple structure, better stability, higher side load bearing capacity and convenience in disassembly and assembly is needed.
The Chinese patent discloses a novel copying knife (CN 202768009U), including the blade disc, still include outer guide cylinder, flexible hydro-cylinder, sealing washer and cutter, outer guide cylinder is installed in blade disc one side, flexible hydro-cylinder is installed in outer guide cylinder inboard, flexible hydro-cylinder one end installation cutter, the sealing washer is installed between outer guide cylinder and flexible hydro-cylinder.
It has the following disadvantages:
1, a guide cylinder is arranged on the outer side of a hydraulic cylinder, and a cutter head combination and the hydraulic cylinder are both arranged in the guide cylinder and are welded on a cutter head through the guide cylinder; the guide cylinder and the cylinder barrel, the cylinder barrel and the piston rod, and the piston rod and the guide sleeve are in a multi-layer matching structure, so that the structure is complex, the installation space is large, the stability is reduced, and the processing technology is complex;
2, the cutter head is connected on the cylinder barrel of the hydraulic cylinder in a combined manner, no hydraulic oil exists between the cylinder barrel and the guide cylinder, friction is reduced only by injecting lubricating oil, sealing abrasion is fast, and the service life of the profiling cutter is influenced.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a shield constructs quick-witted contour cutter hydro-cylinder of built-in tool bit combination.
The utility model discloses a following technical scheme realizes: a shield tunneling machine profiling cutter oil cylinder with a built-in cutter head combination comprises a cylinder barrel, wherein a piston rod is installed in the cylinder barrel in a matched mode, and a piston is installed on the piston rod; a guide sleeve matched with the piston rod is fixed at the front end of the cylinder barrel; the front side of the guide sleeve is provided with an outer guide section extending forwards; a cutter head combination is arranged in the outer guide section in a sliding fit mode and is fixedly arranged at the front end of the piston rod.
It further comprises the following steps: the front end of the piston rod is step-shaped, and the front end of the piston rod is provided with an external thread; the axis of the cutter head combination is provided with a threaded hole, and the cutter head combination is installed at the front end of the piston rod through threaded connection.
The tool bit combination is provided with a non-return threaded hole communicated with a threaded hole of the axis of the tool bit combination, and the non-return threaded hole is internally provided with a set screw in a threaded connection way; the inner end of the set screw is abutted against the outer circumferential surface of the front end of the piston rod.
And a dustproof ring groove is formed in the outer side of an inner hole of the outer guide section, and a dustproof ring matched with the circumferential surface of the tool bit combination is formed in the dustproof ring groove.
And the circumferential surface of the outer guide section is provided with a grease hole communicated with the inner hole of the outer guide section.
The guide sleeve is characterized in that the rear end of the guide sleeve is provided with an external thread, the front end of the cylinder barrel is provided with an inner spigot, the inner spigot of the cylinder barrel is provided with an external thread, and the rear end of the guide sleeve is connected with the inner spigot at the front end of the cylinder barrel through a thread.
The front end of the outer guide section is fixedly connected with a flange, and a welding groove is formed in the outer side of the flange.
The outer circle of the piston is integrally welded with aluminum bronze, and a combined hole is arranged in the middle for sealing.
The cylinder barrel is provided with an oil port and a pressure measuring port; the oil ports are radially arranged, the pressure measuring ports are axially arranged, and the pressure measuring ports are communicated with the oil ports.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the cutter head combination is arranged in the outer guide section extending from the front part of the guide sleeve, so that the structure of an independent guide cylinder is reduced, and the mechanism complexity of the profiling cutter is simplified and reduced;
(2) meanwhile, the piston rod and the piston are integrally connected with the cutter head in a combined mode, so that the straightness is better, and the stability and the side load resistance of the profiling cutter are enhanced;
(3) the cutter head combination is in threaded connection with the piston rod, so that the cutter head combination is easy to disassemble, and the cutter head is convenient to replace in a tunnel backpressure environment.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a left side view of the present invention;
in the figure: 1. combining cutter heads; 2. a guide sleeve; 2-1, an outer guide section; 2-2, grease holes; 3. tightening the screw; 4. a cylinder barrel; 5. a piston rod; 6. an oil port; 7. a pressure measuring port; 8. a dust ring; 9. a flange; 9-1, welding a groove; 10. a piston.
Detailed Description
The following is a specific embodiment of the present invention, which will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, a cylinder of a shield tunneling machine profiling cutter with a built-in cutter head assembly is provided, a cylinder barrel 4 is internally provided with a piston rod 5 in a matching manner, and the piston rod 5 is provided with a piston 10. Integrally welding aluminum bronze on the excircle of the piston 10, and configuring a combined hole in the middle for sealing; the diameters of the piston rods on the two sides of the piston are different according to different output forces. The cylinder barrel 4 is of an integral structure, the bottom of the cylinder barrel is provided with a hole, and sealing guide structures such as a dust ring, a shaft seal, a steve seal and a support ring are arranged in the hole. The piston rod 5 is a double-outlet rod, and rod bodies at two ends of the piston rod 5 are matched with the guide sleeve 2 and the cylinder bottom guide sealing structure of the cylinder barrel 4 to slide. The cylinder barrel 4 is provided with an oil port 6 and a pressure measuring port 7; the oil port 6 is arranged radially, the pressure measuring port 7 is arranged axially, and the pressure measuring port 7 is communicated with the oil port 6.
The rear end of the guide sleeve 2 is provided with an external thread, the front end of the cylinder barrel 4 is provided with an inner spigot, the inner spigot of the cylinder barrel 4 is provided with an external thread, and the rear end of the guide sleeve 2 is connected with the inner spigot at the front end of the cylinder barrel 4 through a thread. The guide sleeve 2 is used as a guide original piece of the hydraulic cylinder, and the inner hole is provided with sealing structures such as a dustproof ring, a shaft seal, a steve seal and a support ring. The front side of the guide sleeve 2 is provided with an outer guide section 2-1 extending forwards. The cutter head assembly 1 is in sliding fit with the outer guide section 2-1, a dustproof ring groove is formed in the outer side of an inner hole of the outer guide section 2-1, and a dustproof ring 8 matched with the circumferential surface of the cutter head assembly 1 is formed in the dustproof ring groove. The circumferential surface of the outer guide section 2-1 is provided with a grease hole 2-2 communicated with the inner hole of the outer guide section 2-1. One side of the guide sleeve 2 is used as a guide element of the hydraulic cylinder, and the outer guide section 2-1 at the other side is used as a guide cylinder of the cutter head assembly 1.
The front end of the outer guide section 2-1 is fixedly connected with a flange 9, and the outer side of the flange 9 is provided with a welding groove 9-1. And the profiling cutter hydraulic cylinder is welded on a cutter head of the shield tunneling machine through a welding groove 9-1.
The front end of the piston rod 5 is step-shaped, the front end of the piston rod 5 is provided with an external thread, the axis of the cutter head combination 1 is provided with a threaded hole, and the cutter head combination 1 is installed at the front end of the piston rod 5 through threaded connection. A non-return threaded hole communicated with a threaded hole in the axis of the cutter head assembly 1 is formed in the cutter head assembly 1, and a set screw 3 is connected and installed in the non-return threaded hole through threads; the inner end of the set screw 3 is tightly pressed on the outer circumference surface of the front end of the piston rod 5, and the function of stopping back is achieved.
As can be seen from the present embodiment,
the cutter head combination is arranged in the hydraulic cylinder guide sleeve, and the piston, the piston rod and the cutter head combination form an integral structure with extremely high coaxiality by being directly connected with the piston rod, so that the stability of the shield tunneling machine profiling cutter hydraulic cylinder in operation and the capability of bearing lateral force are enhanced;
the cutter head combination is arranged in the hydraulic cylinder guide sleeve, so that the guide sleeve has double functions of a hydraulic cylinder guide element and a cutter head combination guide cylinder, the space of the profiling cutter occupying the position of a cutter head of the shield tunneling machine is compact in structure, and the cleanness of the cutter head combination of the oil cylinder is ensured by the double dust-proof structure of the guide sleeve;
the outer circle of the piston is integrally welded with aluminum bronze, so that the gap between the piston and the cylinder barrel is reduced, the guidance of the piston is enhanced under the condition that the profiling cutter hydraulic cylinder bears side load, and the inner hole of the cylinder barrel is prevented from being damaged by the piston;
the cylinder barrel is of an integrated structure, so that the whole hydraulic cylinder is free of welding points, and the oil leakage probability is reduced.
Claims (9)
1. A shield tunneling machine profiling cutter oil cylinder with a built-in cutter head combination comprises a cylinder barrel (4), a piston rod (5) is installed in the cylinder barrel (4) in a matched mode, and a piston (10) is installed on the piston rod (5); a guide sleeve (2) matched with the piston rod (5) is fixed at the front end of the cylinder barrel (4); the method is characterized in that: the front side of the guide sleeve (2) is provided with an outer guide section (2-1) extending forwards; the outer guide section (2-1) is internally provided with a cutter head combination (1) in a sliding fit mode, and the cutter head combination (1) is fixedly arranged at the front end of the piston rod (5).
2. The shield tunneling machine profiling cutter oil cylinder with the built-in cutter head combination according to claim 1, characterized in that: the front end of the piston rod (5) is step-shaped, and the front end of the piston rod (5) is provided with an external thread; the axis of the cutter head combination (1) is provided with a threaded hole, and the cutter head combination (1) is installed at the front end of the piston rod (5) through threaded connection.
3. The shield tunneling machine profiling cutter oil cylinder with the built-in cutter head combination according to claim 2, characterized in that: a non-return threaded hole communicated with an axis threaded hole of the cutter head combination (1) is formed in the cutter head combination (1), and a set screw (3) is connected and installed in the non-return threaded hole through threads; the inner end of the set screw (3) is abutted against the outer circumferential surface of the front end of the piston rod (5).
4. The shield tunneling machine profiling cutter oil cylinder with the built-in cutter head combination according to claim 1, characterized in that: the outer side of the inner hole of the outer guide section (2-1) is provided with a dustproof ring groove, and a dustproof ring (8) matched with the circumferential surface of the tool bit combination (1) is arranged in the dustproof ring groove.
5. The shield tunneling machine profiling cutter oil cylinder with the built-in cutter head combination according to claim 1 or 4, characterized in that: the circumferential surface of the outer guide section (2-1) is provided with a grease hole (2-2) communicated with the inner hole of the outer guide section (2-1).
6. The shield tunneling machine profiling cutter oil cylinder with the built-in cutter head combination according to claim 1, characterized in that: the rear end of the guide sleeve (2) is provided with an external thread, the front end of the cylinder barrel (4) is provided with an inner spigot, the inner spigot of the cylinder barrel (4) is provided with an external thread, and the rear end of the guide sleeve (2) is connected with the inner spigot at the front end of the cylinder barrel (4) through a thread.
7. The shield tunneling machine profiling cutter oil cylinder with the built-in cutter head combination according to claim 1, characterized in that: the front end of the outer guide section (2-1) is fixedly connected with a flange (9), and a welding groove (9-1) is arranged on the outer side of the flange (9).
8. The shield tunneling machine profiling cutter oil cylinder with the built-in cutter head combination according to claim 1, characterized in that: the outer circle of the piston (10) is integrally welded with aluminum bronze, and a combined hole is arranged in the middle for sealing.
9. The shield tunneling machine profiling cutter oil cylinder with the built-in cutter head combination according to claim 1, characterized in that: the cylinder barrel (4) is provided with an oil port (6) and a pressure measuring port (7); the oil port (6) is arranged in the radial direction, the pressure measuring port (7) is arranged in the axial direction, and the pressure measuring port (7) is communicated with the oil port (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921203134.8U CN210370647U (en) | 2019-07-29 | 2019-07-29 | Shield tunneling machine profiling cutter oil cylinder with built-in cutter head combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921203134.8U CN210370647U (en) | 2019-07-29 | 2019-07-29 | Shield tunneling machine profiling cutter oil cylinder with built-in cutter head combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210370647U true CN210370647U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921203134.8U Active CN210370647U (en) | 2019-07-29 | 2019-07-29 | Shield tunneling machine profiling cutter oil cylinder with built-in cutter head combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210370647U (en) |
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2019
- 2019-07-29 CN CN201921203134.8U patent/CN210370647U/en active Active
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