CN203765030U - Hydraulic vibration drilling power head - Google Patents
Hydraulic vibration drilling power head Download PDFInfo
- Publication number
- CN203765030U CN203765030U CN201420017676.7U CN201420017676U CN203765030U CN 203765030 U CN203765030 U CN 203765030U CN 201420017676 U CN201420017676 U CN 201420017676U CN 203765030 U CN203765030 U CN 203765030U
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- China
- Prior art keywords
- oil
- valve
- end cap
- sliding bearing
- static
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- Withdrawn - After Issue
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Abstract
The utility model discloses a hydraulic vibration drilling power head. An output shaft of a first servo motor is connected with a main shaft; an accommodating cavity is formed inside an outer shell; a first hydrostatic sliding bearing and a second hydrostatic sliding bearing are arranged at the left and right ends of the accommodating cavity of the outer shell respectively; a left end cover is connected with the left end of the outer shell; a right end cover is connected with the right end of the outer shell; oil inlets of the two hydrostatic sliding bearings are communicated with each other through an oil inlet flow channel in the outer shell and are connected with an oil outlet of a pressure reducing valve; oil return ports of the two hydrostatic sliding bearings are connected with an oil return port of an oil tank through an oil return flow channel in the middle of the outer shell; a flutter body is connected with the main shaft; an oil inlet/outlet hole is formed in the middle of the flutter body; an oil outlet of a high-frequency vibration excitation valve is connected with an oil inlet/outlet of the outer shell and is communicated with the oil inlet/outlet hole through an inlet/outlet flow channel in the outer shell and an axial flow channel in the main shaft; the right end of the flutter body is connected with an elastic end cover; the right end of the flutter body and the left end of the elastic end cover form a vibration accommodating cavity; the right end of the elastic end cover is fixedly connected with a chuck. The hydraulic vibration drilling power head is higher in vibration frequency, simple in structure and excellent in stability.
Description
Technical field
The utility model relates to drill unit, especially a kind of hydraulic vibration drill unit.Background technology
Along with developing rapidly of plant equipment functionalization and precise treatment, various new materials and processing method are all applied in product development, being carried out to drilling, these difficult-to-machine materials and elongated orifices add man-hour, existing bench drill is in boring procedure, drill bit continuous cutting, cutting force is large and chip breaking is bad, and the precision, the surface roughness that make to process metapore are not high, and cutter life is also low.Therefore traditional drilling is because himself limits the requirement that more and more cannot meet people.
Vibrating drill technology is a kind of process technology of improving drilling process by additional a kind of oscillating movement in boring procedure.In existing vibrating drill mechanism, the vibration force producing need to pass to main shaft by leverage, and when needs frequently/turn and need to increase speed change gear when being greater than 1, these all will increase cost, noise and physical dimension, in borehole drill construction spindle vibration process, can increase at present the load of bearing, shorten the life-span of bearing.And traditional Mechanical Driven vibrating device lacking certain stability in vibration drilling process, or be limited to the factors such as self structure and cannot reach a higher frequency.
Summary of the invention
In order to overcome, existing mechanical oscillation borehole drill construction vibration frequency is lower, the deficiency of huge structure, deficient in stability, and the utility model patent provides that a kind of vibration frequency is higher, simplified structure, the hydraulic vibration drill unit that has good stability.
The utility model solves the technical scheme that its technical problem adopts:
A kind of hydraulic vibration drill unit, comprise drill unit mechanism, described drill unit mechanism comprises the first servomotor, left end cap, main shaft, the first static-pressure sliding bearing, the second static-pressure sliding bearing, shell body, right end cap, flutter body, elasticity end cap and for assembling the dop of drill bit, the output shaft of described the first servomotor is connected with described main shaft, described shell body inside has cavity volume, described the first static-pressure sliding bearing is installed on described shell body cavity volume left end, described the second static-pressure sliding bearing is installed on described shell body cavity volume right-hand member, described left end cap is connected with described shell body left end, described right end cap is connected with described shell body right-hand member, described main shaft is successively through left end cap, the first static-pressure sliding bearing, cavity volume, the second static-pressure sliding bearing and right end cap also stretch out described right end cap, described the first static-pressure sliding bearing is communicated with by the oil-feed runner in described shell body with the oil-in of the second static-pressure sliding bearing, described oil-feed runner is communicated with the oil-in of shell body, the oil-in of described shell body is connected with the oil-out of pressure-reducing valve, described the first static-pressure sliding bearing is connected with tank drainback mouth by the oil return runner at described shell body middle part with the oil return opening of the second static-pressure sliding bearing, described flutter body is connected with the right-hand member of described main shaft, described flutter body middle part has turnover oilhole, the oil-out of high-frequency excitation valve is connected with the oil inlet and outlet of shell body, and be communicated with described turnover oilhole by the turnover runner in shell body and the shaft orientation flowing channel in described main shaft, described flutter body right-hand member is connected with elasticity end cap, described flutter body right-hand member and described elasticity end cap left end form a vibration cavity volume, described elasticity end cap right-hand member is fixedly connected with dop.
Further, have through hole in the middle of described left end cap, described right end cap middle part has shoulder hole, and described oil sealing is installed in described shoulder hole.
Further, described flutter body left end middle part has screwed hole, and screwed hole top has a turnover oilhole.
Further again, also involving vibrations control hydraulic subsystem of described hydraulic vibration drill unit, described vibration control hydraulic subsystem comprises pump, high-frequency excitation valve, check valve, overflow valve, pressure-reducing valve, the second servomotor, gear speedup case, fuel tank, the first accumulator and the second accumulator, described the second servomotor is connected with high-frequency excitation valve by gear speedup case, the oil-in of described high-frequency excitation valve is connected with described check valve oil-out, the oil return opening of described high-frequency excitation valve is connected with described tank drainback mouth, described check valve oil-in is connected with the oil-out of described pump, described pump is connected with the oil-out of described fuel tank by oil strainer, the oil return opening of described fuel tank is connected with the oil-in of described high-frequency excitation valve by overflow valve, described the first accumulator is connected with the oil-in of described high-frequency excitation valve, described Pressure gauge is connected with the oil-in of described high-frequency excitation valve, the oil return opening of described high-frequency excitation valve is connected with described the second accumulator.
Described hydraulic vibration drill unit also comprises static-pressure sliding bearing oil supply subsystem, described static-pressure sliding bearing subsystem comprises pump, check valve, overflow valve and pressure-reducing valve, the oil-in of described pressure-reducing valve is connected with the oil-out of described check valve, described check valve oil-in is connected with the oil-out of described pump, described pump is connected with the oil-out of described fuel tank by oil strainer, the oil return opening of described fuel tank is connected with the oil-in of described pressure-reducing valve by overflow valve, and described Pressure gauge is connected with the oil-out of described pressure-reducing valve.
Described high-frequency excitation valve is rotary valve, the output shaft interlock of the spool of described rotary valve and described the second servomotor.
The beneficial effects of the utility model are mainly manifested in: adopted high-frequency hydraulic flutter device to be used as the vibrating device of unit head, utilize hydraulic-driven to provide enough large exciting force to drive dop vibration, and more than vibration frequency can reach 500HZ, this vibrator have high frequency, a little, the feature of large exciting force, improve vibration frequency, more compact structure; Replace conventional rolling bearing with static-pressure sliding bearing, overcome unit head and vibrated the impact on bearing, extended bearing service life.
Brief description of the drawings
Fig. 1 is the schematic diagram of hydraulic vibration drill unit.
Fig. 2 is the schematic diagram of hydraulic circuit.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
See figures.1.and.2, a kind of hydraulic vibration drill unit, comprise drill unit mechanism, described drill unit mechanism comprises the first servomotor 20, shaft coupling 21, left end cap 22, main shaft 25, the first static-pressure sliding bearing 23, the second static-pressure sliding bearing 26, oil sealing 27, shell body 24, right end cap 28, flutter body 29, elasticity end cap 30 and dop 31, described the first servomotor 20 is connected with described main shaft 25 by shaft coupling 21, described shell body 24 inside have cavity volume, described the first static-pressure sliding bearing 23 is installed on described shell body 24 cavity volume left ends, described the second static-pressure sliding bearing 26 is installed on described shell body 24 cavity volume right-hand members, described main shaft 25 is coaxially installed in described shell body 24 cavity volumes with described static-pressure sliding bearing, described the first static-pressure sliding bearing 23 is communicated with by the runner in described shell body 24 with the oil-in of the second static-pressure sliding bearing 26, the oil-in A1 mouth of described static-pressure sliding bearing is connected with the oil-out of described pressure-reducing valve 18, described the first static-pressure sliding bearing 23 is connected with fuel tank 1 oil return opening by the runner at described shell body 24 middle parts with the oil return opening of the second static-pressure sliding bearing 26, described left end cap 22 is connected with described shell body 24 left ends, described right end cap 28 is connected with described shell body 24 right-hand members, in the middle of described left end cap 22, have through hole, described right end cap 28 middle parts have shoulder hole, described oil sealing 27 is installed in described shoulder hole, described flutter body 29 is connected with described main shaft 25, described vibration body 29 left end middle parts have screwed hole, screwed hole top has a turnover oilhole, the oil-out of described high-frequency excitation valve 10 connects by described shell body 24A2 mouth, and be communicated with described turnover oilhole by the runner in shell body 24 and the runner in described main shaft 25, described flutter body 29 right-hand members are connected with elasticity end cap 30, described flutter body 29 right-hand members and described elasticity end cap 30 left ends form a vibration cavity volume, described elasticity end cap 30 right-hand members and dop 31 are threaded connection,
Described hydraulic vibration drill unit also comprises static-pressure sliding bearing oil supply subsystem and vibration control hydraulic subsystem, described vibration control hydraulic subsystem comprises pump 4, high-frequency excitation valve 10, check valve 5, overflow valve 7, pressure-reducing valve 13, the second servomotor 12, gear speedup case 11, fuel tank 1, the first accumulator 9 and the second accumulator 8, described the second servomotor 12 is connected with high-frequency excitation valve 10 by gear speedup case 11, the oil-in of described high-frequency excitation valve 10 is connected with described check valve 5 oil-outs, the oil return opening of described high-frequency excitation valve 10 is connected with described fuel tank 1 oil return opening, described check valve 5 oil-ins are connected with the oil-out of described pump 4, described pump 4 is connected with the oil-out of described fuel tank 1 by oil strainer 2, the oil return opening of described fuel tank 1 is connected with the oil-in of described high-frequency excitation valve 10 by overflow valve 7, described the first accumulator 9 is connected with the oil-in of described high-frequency excitation valve 10, described Pressure gauge 6 is connected with the oil-in of described high-frequency excitation valve 10, the oil return opening of described high-frequency excitation valve 10 is connected with described the second accumulator 8.
Described static-pressure sliding bearing subsystem comprises pump 15, check valve 16, overflow valve 17 and pressure-reducing valve 18, the oil-in of described pressure-reducing valve 18 is connected with the oil-out of described check valve 16, described check valve 16 oil-ins are connected with the oil-out of described pump 15, described pump 15 is connected with the oil-out of described fuel tank 1 by oil strainer 13, the oil return opening of described fuel tank 1 is connected with the oil-in of described pressure-reducing valve 18 by overflow valve 17, and described Pressure gauge 19 is connected with the oil-out of described pressure-reducing valve 18.
Described high-frequency excitation valve 10 is rotary valve.Its spool can be along circumferential High Rotation Speed under the driving of the second servomotor 12, and high-frequency excitation valve 10 can significantly improve oil circuit switch speed by this structure, thereby increases substantially the operating frequency of high-frequency excitation valve 10; Certainly, also can select other structures.
The vibration that elasticity end cap 30 is exported certain frequency and amplitude to dop 31 on the one hand, plays a part again to install dop 31 on the other hand.Elasticity end cap 30 left part sealing rings are to prevent that elasticity end cap 30 is in the time of vibration, and fluid overflows, and plays the effect of sealing fluid.
See figures.1.and.2, when work, drill bit is installed on dop, open pump 15, give static-pressure sliding bearing fuel feeding, main shaft 25 is floated in shell body 24 cavity volumes, open afterwards pump 15 for high-frequency excitation valve 10 fuel feeding, open the second servomotor 20 simultaneously, drive main shaft 25 to carry out gyration, open the first servomotor 12 simultaneously, the rotating speed of its output passes to high-frequency excitation valve 10 spools after step-up gear 11 speedups, when high-frequency excitation valve is in left when position, P-A communicates, now hydraulic oil enters into by oil pipe the vibration cavity volume that flutter body 29 and elasticity end cap 30 form, pressure rise in vibration cavity, elasticity end cap 30 is projection to the right, drive dop moves right, in the time that high-frequency excitation valve turns over certain angle in right position, A-T communicates, and the hydraulic oil that the elasticity end cap 30 under extended state relies on restoring force to make to vibrate in cavity volume flows back to fuel tank, and drives dop 31 to left movement.Control fluid by high-frequency excitation valve 10 and periodically pass in and out vibration cavity, drive dop 31 periodically to vibrate.Oil-in and oil return opening at oil circuit have all been installed the first accumulator 9 and the second accumulator 8, and their Main Function is exactly absorption pressure pulsation, so can absorb vibration.Accumulator is installed herein, and its main application is the vibration that absorbs oil inlet pipe and oil return pipe, to prevent the vibration effect flutter body 29 of oil pipe and the normal work of elasticity end cap 30.
Claims (6)
1. a hydraulic vibration drill unit, it is characterized in that: comprise drill unit mechanism, described drill unit mechanism comprises the first servomotor, left end cap, main shaft, the first static-pressure sliding bearing, the second static-pressure sliding bearing, shell body, right end cap, flutter body, elasticity end cap and for assembling the dop of drill bit, the output shaft of described the first servomotor is connected with described main shaft, described shell body inside has cavity volume, described the first static-pressure sliding bearing is installed on described shell body cavity volume left end, described the second static-pressure sliding bearing is installed on described shell body cavity volume right-hand member, described left end cap is connected with described shell body left end, described right end cap is connected with described shell body right-hand member, described main shaft is successively through left end cap, the first static-pressure sliding bearing, cavity volume, the second static-pressure sliding bearing and right end cap also stretch out described right end cap, described the first static-pressure sliding bearing is communicated with by the oil-feed runner in described shell body with the oil-in of the second static-pressure sliding bearing, described oil-feed runner is communicated with the oil-in of shell body, the oil-in of described shell body is connected with the oil-out of pressure-reducing valve, described the first static-pressure sliding bearing is connected with tank drainback mouth by the oil return runner at described shell body middle part with the oil return opening of the second static-pressure sliding bearing, described flutter body is connected with the right-hand member of described main shaft, described flutter body middle part has turnover oilhole, the oil-out of high-frequency excitation valve is connected with the oil inlet and outlet of shell body, and be communicated with described turnover oilhole by the turnover runner in shell body and the shaft orientation flowing channel in described main shaft, described flutter body right-hand member is connected with elasticity end cap, described flutter body right-hand member and described elasticity end cap left end form a vibration cavity volume, described elasticity end cap right-hand member is fixedly connected with dop.
2. hydraulic vibration drill unit as claimed in claim 1, is characterized in that: in the middle of described left end cap, have through hole, described right end cap middle part has shoulder hole, and oil sealing is installed in described shoulder hole.
3. hydraulic vibration drill unit as claimed in claim 1 or 2, is characterized in that: described flutter body left end middle part has screwed hole, and screwed hole top has a turnover oilhole.
4. hydraulic vibration drill unit as claimed in claim 1 or 2, it is characterized in that: also involving vibrations control hydraulic subsystem of described hydraulic vibration drill unit, described vibration control hydraulic subsystem comprises pump, high-frequency excitation valve, check valve, overflow valve, pressure-reducing valve, the second servomotor, gear speedup case, fuel tank, the first accumulator and the second accumulator, described the second servomotor is connected with high-frequency excitation valve by gear speedup case, the oil-in of described high-frequency excitation valve is connected with described check valve oil-out, the oil return opening of described high-frequency excitation valve is connected with described tank drainback mouth, described check valve oil-in is connected with the oil-out of described pump, described pump is connected with the oil-out of described fuel tank by oil strainer, the oil return opening of described fuel tank is connected with the oil-in of described high-frequency excitation valve by overflow valve, described the first accumulator is connected with the oil-in of described high-frequency excitation valve, Pressure gauge is connected with the oil-in of described high-frequency excitation valve, the oil return opening of described high-frequency excitation valve is connected with described the second accumulator.
5. hydraulic vibration drill unit as claimed in claim 1 or 2, it is characterized in that: described hydraulic vibration drill unit also comprises static-pressure sliding bearing oil supply subsystem, described static-pressure sliding bearing subsystem comprises pump, check valve, overflow valve and pressure-reducing valve, the oil-in of described pressure-reducing valve is connected with the oil-out of described check valve, described check valve oil-in is connected with the oil-out of described pump, described pump is connected with the oil-out of described fuel tank by oil strainer, the oil return opening of described fuel tank is connected with the oil-in of described pressure-reducing valve by overflow valve, Pressure gauge is connected with the oil-out of described pressure-reducing valve.
6. hydraulic vibration drill unit as claimed in claim 4, is characterized in that: described high-frequency excitation valve is rotary valve, the output shaft interlock of the spool of described rotary valve and described the second servomotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017676.7U CN203765030U (en) | 2014-01-10 | 2014-01-10 | Hydraulic vibration drilling power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017676.7U CN203765030U (en) | 2014-01-10 | 2014-01-10 | Hydraulic vibration drilling power head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203765030U true CN203765030U (en) | 2014-08-13 |
Family
ID=51282277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420017676.7U Withdrawn - After Issue CN203765030U (en) | 2014-01-10 | 2014-01-10 | Hydraulic vibration drilling power head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203765030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801729A (en) * | 2014-01-10 | 2014-05-21 | 浙江工业大学 | Hydraulic vibration drilling power head |
-
2014
- 2014-01-10 CN CN201420017676.7U patent/CN203765030U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801729A (en) * | 2014-01-10 | 2014-05-21 | 浙江工业大学 | Hydraulic vibration drilling power head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20160817 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |