CN203949621U - A kind of unit head displacement measuring device and rotary drilling rig - Google Patents
A kind of unit head displacement measuring device and rotary drilling rig Download PDFInfo
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- CN203949621U CN203949621U CN201420326070.1U CN201420326070U CN203949621U CN 203949621 U CN203949621 U CN 203949621U CN 201420326070 U CN201420326070 U CN 201420326070U CN 203949621 U CN203949621 U CN 203949621U
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- unit head
- measuring device
- oil cylinder
- displacement
- displacement measuring
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 114
- 238000005553 drilling Methods 0.000 title claims abstract description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 20
- 238000010276 construction Methods 0.000 abstract description 12
- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A kind of unit head displacement measuring device and the rotary drilling rig that the utility model proposes, this unit head displacement measuring device comprises the pressurization oil cylinder of controlling described unit head displacement, also comprises: for measuring the oil cylinder displacement measuring device of piston rod displacement of described pressurization oil cylinder; With the controller that described oil cylinder displacement measuring device signal is connected, described controller calculates described unit head displacement according to the described piston rod displacement of measuring.Because unit head displacement is by the control of pressurization oil cylinder, so by the pressurize displacement of piston rod in oil cylinder of measurement, can accurately calculate the displacement of unit head, because pressurization oil cylinder only has piston rod movement, so this unit head displacement measuring device is not affected by construction environment substantially nor can be by damage, in the serviceable life of improving unit head displacement measuring device, it is more accurate to measure.
Description
Technical field
The utility model relates to the unit head of rotary drilling rig, relates in particular to a kind of unit head displacement measuring device and is provided with the rotary drilling rig of this unit head displacement measuring device.
Background technology
Rotary drilling rig is a kind of large-scale capital construction pile drilling construction equipment, and wherein unit head is as most important service part, and its displacement measuring device structure is various, and measuring principle and mode are also different.Inventor of the present utility model studies rear discovery to existing various measurement mechanisms, measure dial means and all have the following disadvantages from laser aid, rope sensor, scrambler, measurement environment be there are certain requirements, be easily subject to severe construction infection, cause measuring inaccurate; Mounting structure complexity, and apparatus structure is external, is easily subject to severe construction environment impact or damage; Measuring accuracy is inadequate, the exploitation of the new function of rig is restricted, and the frequency that unit head up and down reciprocatingly moves along guide rail in drilling construction process and change in location situation fail accurately measure and monitor intuitively, therefore whether the running parameter of unit head and characteristic can intuitively accurately be known by operator timely, significant to grasping drilling machine construction characteristic.
Affected or damage by construction environment for existing unit head displacement measuring device, affect the problem of unit head displacement measurement, is those skilled in the art's technical matterss urgently to be resolved hurrily.
Utility model content
Affected or damage by construction environment in order to overcome existing unit head displacement measuring device, affect unit head displacement measurement problem accurately, the utility model provides a kind of unit head displacement measuring device and rotary drilling rig.
The utility model provides a kind of unit head displacement measuring device, comprising:
For controlling the pressurization oil cylinder of unit head displacement;
Be used for the oil cylinder displacement measuring device of the piston rod displacement of measuring described pressurization oil cylinder;
With the controller that described oil cylinder displacement measuring device is connected, described controller is for calculating described unit head displacement according to the described piston rod displacement of measuring.
Further, the end axis of described piston rod is to being provided with the groove being communicated with the chamber of described pressurization oil cylinder;
The casing wall of described pressurization oil cylinder be axially provided with the slotted eye corresponding with described groove, described slotted eye and described groove coaxially arrange.
Further, described oil cylinder displacement measuring device comprises:
Be arranged on the magnetostrictive displacement sensor on described casing wall;
The waveguide of described magnetostrictive displacement sensor passes described slotted eye and is plugged in described groove;
Described groove is provided with magnet ring in the end near described casing wall, and described magnet ring is around described waveguide setting.
Further, described magnetostrictive displacement sensor is arranged on described casing wall by mounting flange;
Described mounting flange is also provided with and is arranged on the protection cylinder for the protection of described waveguide in described groove.
Further, in described slotted eye, be provided with internal thread;
Described mounting flange is provided with the screw shell for the described slotted eye that is threaded.
Further, described mounting flange is provided with the ring flange being threaded with described magnetostrictive displacement sensor;
Described ring flange and described screw shell are structure as a whole.
Further, the inner side near described groove of described screw shell is provided with annular step halfpace;
One end of described protection cylinder is welded on described annular step halfpace.
Further, the other end of described protection cylinder is fixed with back-up block.
Further, described protection cylinder is stainless-steel tube.
The utility model also provides a kind of rotary drilling rig, and described rotary drilling rig is provided with the unit head displacement measuring device of the above.
A kind of unit head displacement measuring device that the utility model provides, by measurement the convert displacement of unit head of the displacement of piston rod in oil cylinder that pressurizes.Because unit head displacement moves by pressurization oil cylinder control bit, so by the pressurize displacement of piston rod in oil cylinder of measurement, can accurately calculate the displacement of unit head.In addition, because pressurization oil cylinder only has piston rod movement, so not affected by construction environment nor can be by damage, improve the serviceable life of unit head displacement measuring device, it is more accurate to measure.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the part-structure schematic diagram that the pressurization oil cylinder of magnetostrictive displacement sensor is installed in the utility model embodiment;
Fig. 2 is the structural representation of mounting flange;
Fig. 3 is the cross-sectional schematic of A-A in Fig. 2.
Description of reference numerals:
1, piston rod; 11, groove; 2, casing wall; 21, slotted eye; 3, magnetostrictive displacement sensor; 31, waveguide; 32, magnet ring; 4, mounting flange; 41, protection cylinder; 42, screw shell; 43, back-up block; 44, ring flange.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment is affected or damage by construction environment easily for existing unit head displacement measuring device, affect unit head displacement measurement problem accurately, control the displacement that unit head is measured in the displacement of piston rod in the unit head oil cylinder of unit head displacement indirectly by measurement, simple in structure, not affected and damage by extraneous construction environment, it is more accurate to measure, and the serviceable life that can improve unit head displacement measuring device.
With reference to Fig. 1, it is the part-structure schematic diagram of unit head displacement measuring device, because the displacement of unit head is by the unit head oil cylinder control of pressurizeing, so measure the displacement of unit head pressurization oil cylinder inner piston rod 1 and both can corresponding calculate the displacement of unit head.In the present embodiment, this unit head displacement measuring device comprises: for controlling the pressurization oil cylinder of unit head of unit head displacement, and for measuring the oil cylinder displacement measuring device of piston rod 1 displacement of pressurization oil cylinder; The controller that this oil cylinder displacement measuring device signal connects, controller is for calculating unit head displacement according to the piston rod displacement of measuring.
Wherein, oil cylinder displacement measuring device can select more conventional displacement measuring device to measure the displacement of piston rod, the preferred oil cylinder displacement measuring device of the utility model embodiment is magnetostrictive displacement measurement mechanism, for coordinating to install, this magnetostrictive displacement measurement mechanism is set, as shown in Figure 1, piston rod 1 end axis of this pressurization oil cylinder is to being provided with the groove 11 being communicated with the chamber of the oil cylinder that pressurizes; Pressurization in oil cylinder the casing wall 2 corresponding with groove 11 be axially provided with slotted eye 21, slotted eye 21 coaxially arranges with groove 11.
As shown in Figure 1, this magnetostrictive displacement measurement mechanism comprise magnetostrictive displacement sensor 3 and on waveguide 31 and magnet ring 32, magnetostrictive displacement sensor 3 is arranged on casing wall 2, the waveguide 31 of magnetostrictive displacement sensor 3 passes slotted eye 21 and is plugged in the groove 11 of piston rod 1, magnet ring 32 is fixed on the end of groove 11 near described casing wall 2, and magnet ring 32 is around waveguide 31 peripheral disposition.
Due to pressurization oil cylinder, oil cylinder cavity pressure is larger in the course of the work; so for the ease of this magnetostrictive displacement sensor 3 is installed; as depicted in figs. 1 and 2; magnetostrictive displacement sensor 3 is arranged on casing wall 2 by mounting flange 4, and on mounting flange 4, is also provided with and is arranged on the protection cylinder 41 for the protection of waveguide 31 in groove 11.
As shown in Figures 2 and 3, mounting flange 4 one end are provided with ring flange with threaded hole 44 to the concrete structure of this mounting flange 4, and magnetostrictive displacement sensor 3 can be bolted in the threaded hole of ring flange 44.Mounting flange 4 is also provided with the screw shell 42 with ring flange 44 integrative-structures, by at the interior internal thread that arranges of slotted eye 21, at the outer setting of screw shell 42 external thread corresponding with it, the screw shell 42 of mounting flange 4 can be threaded in this slotted eye 21, improve the compactedness that this mounting flange 4 is connected with slotted eye 21.In screw shell 42, be also fixedly connected with protection cylinder 41, and add a back-up block 43 at protection bobbin afterbody, to prevent protecting cylinder 41 and magnet ring 32 to rub in piston rod 1 motion process.
Certainly, select as other, screw shell 42 also can arrange separately, and is welded to connect with ring flange 44.
Tightr for protection cylinder 41 is connected with screw shell 42, can bear pressurization oil cylinder inner high voltage, in part embodiment, the inner side near groove 4 of screw shell 42 is provided with annular step halfpace; One end of protection cylinder 41 is resisted against on annular step halfpace and in screw shell 42 marginal end portion welding.So that this screw shell 42 can effectively bear the high pressure to protection cylinder 41 in pressurization oil cylinder.
This protection cylinder 41 can be selected the withstand voltage outer tube of stainless-steel tube, is convenient to selection, and welding.
The principle of work of the utility model embodiment is: as shown in Figure 1-Figure 3, this unit head displacement measuring device is carried out indirect calculation and gone out unit head displacement by the pressurize displacement of oil cylinder inner piston rod 1 of measurement.And the measurement mechanism of measuring the displacement of pressurization oil cylinder inner piston rod is realized measurement by magnetostrictive displacement measurement mechanism, by magnetostrictive displacement sensor 3 is arranged on casing wall 2, and its waveguide 31 is goed deep in the slotted eye 21 of casing wall and the groove 11 of piston rod 1, and magnet ring 32 is fixed on groove 11 open ends and arranges around waveguide 31.
Concrete measuring principle is: along with stretching of the in-oil cylinder piston rod 1 of pressurization, magnet ring 32 in piston rod is along the waveguide 31 noncontacts movement of not wearing and tearing, crossing with the circumference magnetic field that current impulse produces in the interior transmission of waveguide 31, produce a strain-pulse signal transmitting with the speed of sound of fixing, detected by magnetostrictive displacement sensor 3.Because the distance between transmission time and movable magnet ring 32 and the electronic room of this strain mechanical wave pulse signal in waveguide 31 is directly proportional, just can highly precisely determine the displacement of this magnet ring 32 by Measuring Time, thereby obtain the displacement of piston rod 1.
Magnetostrictive displacement measurement mechanism is different from other external displacement measuring device, adopts built-in oil cylinder plug-in installation, and non-cpntact measurement is lossless, output absolute value position signalling; Measure range maximum 0～5750mm, precision 1mm, along with the flexible effective travel of oil cylinder, contraction is extended in district, meets the requirement of unit head displacement measurement.
For the ease of this magnetostrictive displacement measurement mechanism is installed; the utility model embodiment pressurizes its mount pad on oil cylinder by mounting flange 4; this mounting flange 4 is by ring flange 44 magnetostrictive displacement sensor that is threaded; and firmly connect slotted eye 21 by screw shell 42, be enclosed within waveguide 31 outside protection waveguides 31 by protection cylinder 41.
The utility model embodiment also provides a kind of rotary drilling rig, and this rotary drilling rig is provided with above-mentioned unit head displacement measuring device.
Because above-mentioned unit head displacement measuring device has above-mentioned beneficial effect, there is too above-mentioned technique effect so be provided with the rotary drilling rig of this unit head displacement measuring device, the embodiment of its specific embodiment and above-mentioned unit head displacement measuring device is similar, does not repeat them here.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a unit head displacement measuring device, is characterized in that, comprising:
For controlling the pressurization oil cylinder of unit head displacement;
Be used for the oil cylinder displacement measuring device of piston rod (1) displacement of measuring described pressurization oil cylinder;
With the controller that described oil cylinder displacement measuring device is connected, described controller is for calculating described unit head displacement according to described piston rod (1) displacement of measuring.
2. unit head displacement measuring device according to claim 1, is characterized in that,
The end axis of described piston rod (1) is to being provided with the groove (11) being communicated with the chamber of described pressurization oil cylinder;
The casing wall (2) of described pressurization oil cylinder be axially provided with the slotted eye (21) corresponding with described groove (11), described slotted eye (21) coaxially arranges with described groove (11).
3. unit head displacement measuring device according to claim 2, is characterized in that, described oil cylinder displacement measuring device comprises:
Be arranged on the magnetostrictive displacement sensor (3) on described casing wall (2);
The waveguide (31) of described magnetostrictive displacement sensor (3) passes described slotted eye (21) and is plugged in described groove (11);
Described groove (11) is provided with magnet ring (32) in the end near described casing wall (2), and described magnet ring (32) arranges around described waveguide (31).
4. unit head displacement measuring device according to claim 3, is characterized in that, described magnetostrictive displacement sensor (3) is arranged on described casing wall (2) by mounting flange (4);
Described mounting flange (4) is also provided with and is arranged on the protection cylinder (41) for the protection of described waveguide (31) in described groove (11).
5. unit head displacement measuring device according to claim 4, is characterized in that, described slotted eye is provided with internal thread in (21);
Described mounting flange (4) is provided with the screw shell (42) for described slotted eye (21) that are threaded.
6. unit head displacement measuring device according to claim 5, is characterized in that, described mounting flange (4) is provided with the ring flange (44) being threaded with described magnetostrictive displacement sensor (3);
Described ring flange (44) is structure as a whole with described screw shell (42).
7. unit head displacement measuring device according to claim 6, is characterized in that, the inner side near described groove (11) of described screw shell (42) is provided with annular step halfpace;
One end of described protection cylinder (41) is welded on described annular step halfpace.
8. unit head displacement measuring device according to claim 7, is characterized in that, the other end of described protection cylinder (41) is fixed with back-up block (43).
9. according to the unit head displacement measuring device described in any one in claim 4-8, it is characterized in that, described protection cylinder (41) is stainless-steel tube.
10. a rotary drilling rig, is characterized in that, described rotary drilling rig is provided with the unit head displacement measuring device as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326070.1U CN203949621U (en) | 2014-06-18 | 2014-06-18 | A kind of unit head displacement measuring device and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420326070.1U CN203949621U (en) | 2014-06-18 | 2014-06-18 | A kind of unit head displacement measuring device and rotary drilling rig |
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| Publication Number | Publication Date |
|---|---|
| CN203949621U true CN203949621U (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420326070.1U Expired - Lifetime CN203949621U (en) | 2014-06-18 | 2014-06-18 | A kind of unit head displacement measuring device and rotary drilling rig |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501689A (en) * | 2014-12-01 | 2015-04-08 | 柳州市桥厦工程管材有限公司 | Displacement ruler protection device with guidance function |
| CN109506557A (en) * | 2018-12-31 | 2019-03-22 | 新余钢铁股份有限公司 | A kind of heating furnace walking beam displacement detector |
| CN113236229A (en) * | 2021-06-29 | 2021-08-10 | 中煤科工集团重庆研究院有限公司 | Device and method for measuring displacement of power head of drilling machine |
-
2014
- 2014-06-18 CN CN201420326070.1U patent/CN203949621U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501689A (en) * | 2014-12-01 | 2015-04-08 | 柳州市桥厦工程管材有限公司 | Displacement ruler protection device with guidance function |
| CN109506557A (en) * | 2018-12-31 | 2019-03-22 | 新余钢铁股份有限公司 | A kind of heating furnace walking beam displacement detector |
| CN109506557B (en) * | 2018-12-31 | 2024-03-26 | 新余钢铁股份有限公司 | Displacement detection device for walking beam of heating furnace |
| CN113236229A (en) * | 2021-06-29 | 2021-08-10 | 中煤科工集团重庆研究院有限公司 | Device and method for measuring displacement of power head of drilling machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141119 |