CN219452034U - Hydraulic clamp holder for drill rod - Google Patents
Hydraulic clamp holder for drill rod Download PDFInfo
- Publication number
- CN219452034U CN219452034U CN202222035093.4U CN202222035093U CN219452034U CN 219452034 U CN219452034 U CN 219452034U CN 202222035093 U CN202222035093 U CN 202222035093U CN 219452034 U CN219452034 U CN 219452034U
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- China
- Prior art keywords
- vertical plate
- oil cylinder
- rod
- hole
- jacking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 238000005553 drilling Methods 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a hydraulic clamp holder for a drill rod, which comprises a frame, a left clamping device and a right clamping device, wherein the left clamping device comprises a jacking cylinder body, a nitrogen spring and a jacking piston are sequentially arranged in the jacking cylinder body from left to right, and the right side of the jacking piston is connected with a left slip; the right clamping device comprises a loosening oil cylinder which is composed of an oil cylinder body, an oil cylinder cover and an oil cylinder piston, and the left side of the oil cylinder cover is connected with a right slip; the jacking cylinder body is connected with the loosening cylinder through four sliding rods; the jacking piston and the oil cylinder piston are supported by two ejector rods. The clamping force is stable and reliable, the service life is long, and the drill running accident can be effectively avoided when the power is suddenly cut off.
Description
Technical Field
The utility model relates to the technical field of drilling equipment, in particular to a hydraulic clamp holder for a drill rod.
Background
Directional drilling machines used in mining exploration require frequent clamping or release of drill pipe in construction work, and are used for clamping or releasing a common drill pipe hydraulic clamp of a drill pipe device tool.
In the prior art, the hydraulic clamp holder for the drill rod can be divided into a normally open type and a normally closed type according to the state of the slips of the hydraulic clamp holder when the hydraulic clamp holder does not work. The normally open type clamp is clamped by the oil cylinder, and the normally open type clamp is simpler than the normally closed type clamp in structure, but has the biggest defect that when the fault oil pressure disappears, the clamping force also disappears immediately, so that the normally open type clamp is only suitable for being used on a drilling machine for drilling near horizontal drilling holes. The normally closed clamp is clamped by a spring, the oil cylinder is loosened, the clamping force depends on the tension generated by the spring, and in order to ensure enough clamping force, a spring with larger specification is generally adopted, such as a spiral spring or a plurality of disc springs stacked together. The coil spring and the disc spring are used for a long time, metal deformation, crack growth and crack gap increase, so that the spring is finally fatigued, and the holding force is reduced or even fails.
Disclosure of Invention
The utility model aims to provide a hydraulic clamp holder for a drill rod, which has the advantages of compact and reasonable structure, stable and reliable clamping force and long service life, and can effectively avoid drill running accidents when power is suddenly cut off.
The technical scheme adopted by the utility model is as follows: the utility model provides a drilling rod hydraulic pressure holder, it includes frame, left clamping device and right clamping device, its characterized in that: the frame comprises a bottom plate, a left vertical plate and a right vertical plate, wherein a slip window is arranged in the middle of the left vertical plate, ejector rod through holes are respectively arranged at the middle upper part and the middle lower part of the left vertical plate, slide rod through holes are respectively arranged at four corners of the left vertical plate, and the right vertical plate is provided with a slip window, an ejector rod through hole and a slide rod through hole which are horizontally symmetrical with the left vertical plate; the left clamping device comprises a jacking cylinder body, a nitrogen spring and a jacking piston are sequentially arranged in the jacking cylinder body from left to right, and the right side of the jacking piston is connected with a left slip extending into a left riser slip window; the right clamping device comprises a loosening oil cylinder which is composed of an oil cylinder body, an oil cylinder cover and an oil cylinder piston, wherein the oil cylinder cover is provided with an ejector rod through hole which is coaxial with the left riser and the right riser ejector rod through hole, and the left side of the oil cylinder cover is connected with a right slip which extends into the right riser slip window; the jacking cylinder body is connected with the loosening cylinder through four slide bars penetrating through the slide bar through holes of the left vertical plate and the right vertical plate; the jacking piston and the oil cylinder piston are supported by two ejector rods penetrating through the left vertical plate, the right vertical plate and the oil cylinder cover ejector rod through holes.
Further, a flange is arranged at the right side end of the propping cylinder body, a slide bar through hole corresponding to the slide bar through holes of the left vertical plate and the right vertical plate is arranged on the flange, a screw rod through hole with the diameter smaller than that of the slide bar through hole corresponding to the slide bar through hole is arranged on the cylinder cover, and a threaded hole corresponding to the screw rod through hole is arranged at the left side end of the cylinder body; the left side end of the sliding rod is provided with a screw head, the right side end of the sliding rod is provided with a screw rod with the diameter smaller than that of the sliding rod, and the sliding rod and the oil cylinder cover are fixed at the left side end of the oil cylinder body through the screw rods at the right ends of the four sliding rod through holes of the sliding rod penetrating through the flange, the left vertical plate and the right vertical plate; the propping cylinder body and the loosening cylinder which are connected together are guided by four sliding rods to keep left-right sliding eccentric adjustment space on the frame.
Furthermore, drill rod guide seats are arranged on the front sides of the left vertical plate and the right vertical plate, and drill rod guide bearings are arranged in the drill rod guide seats.
Furthermore, a limiting ring capable of sliding in the oil cylinder cover ejector rod through hole is arranged on the ejector rod at the position of the oil cylinder cover ejector rod through hole.
Further, two connecting plates are arranged between the upper ends of the left vertical plate and the right vertical plate.
Further, safety covers are attached to the right riser to the front, rear and right sides of the release cylinder.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The utility model belongs to a normally closed clamping type drill rod hydraulic clamp holder, which solves the problems that clamping force disappears when oil pressure disappears, so that clamping is unreliable and safety accidents easily occur compared with a normally open type drill rod hydraulic clamp holder.
(2) The nitrogen spring is adopted as the elastic mechanism for clamping the drill rod, the elastic mechanism has the advantages of large elasticity, stable work, long service life and gentle elastic curve, and the problems that the coil spring and the disc spring are used for a long time, metal deforms, finally the spring is fatigued, the holding force is reduced and even fails are solved.
(3) The jacking cylinder body is connected with the loosening cylinder through four slide bars penetrating through the slide bar through holes of the left vertical plate and the right vertical plate; the jacking piston and the oil cylinder piston are supported by two ejector rods penetrating through the left vertical plate, the right vertical plate and the oil cylinder cover ejector rod through holes. The cylinder piston stretches out to push the jacking piston to compress the nitrogen spring to retract through the ejector rod, the distance between the left slip and the right slip is increased, and the drill rod is loosened; the cylinder piston is retracted, the nitrogen spring and the jacking piston are restored, the space between the left slip and the right slip is reduced, and the left slip and the right slip elastically clamp the drill rod. The hydraulic control device is driven to work by one oil cylinder, and has the advantages of simple and compact structure and convenience in operation.
(4) According to the utility model, the jacking cylinder body and the loosening cylinder are connected together through the four slide bars, and the jacking cylinder body and the loosening cylinder which are connected together are guided by the four slide bars to keep left-right sliding eccentric adjustment spacing on the frame. The eccentric problem generated by driving the single-side oil cylinder is solved.
(5) The utility model is provided with the drill rod guide bearing, and the drill rod runs stably and reliably.
(6) According to the utility model, the ejector rod at the position of the ejector rod through hole of the oil cylinder cover is provided with the limiting ring capable of sliding in the ejector rod through hole of the oil cylinder cover. The limiting ring can limit the propping cylinder body and the loosening cylinder which are connected together to further deviate leftwards, so that the clamping center line of the left slip and the right slip is beneficial to being ensured to be close to the axial line of the drill rod.
(7) The utility model is provided with the safety cover to avoid safety accidents caused by falling off of the loosening oil cylinder due to the action of oil pressure.
Drawings
FIG. 1 is a schematic view of the rear side view angle of the hydraulic drill pipe holder of the present utility model;
FIG. 2 is a schematic view of the front side view of the hydraulic drill pipe holder of the present utility model;
FIG. 3 is a schematic view of a hydraulic holder for a drill pipe in a partially cut-away perspective view;
FIG. 4 is a schematic view of a hydraulic holder for a drill pipe in a partially cut-away perspective view;
FIG. 5 is a schematic perspective view of the frame of the present utility model;
FIG. 6 is a perspective view showing an exploded state of the left clamping device of the present utility model;
FIG. 7 is a perspective view showing an exploded state of the right clamping device of the present utility model;
FIG. 8 is a schematic perspective view of a slide bar of the present utility model;
fig. 9 is a schematic perspective view of the ejector pin of the present utility model.
In the figure: the hydraulic safety device comprises a 1-bottom plate, a 2-left vertical plate, a 3-right vertical plate, a 4-slip window, a 5-ejector rod through hole, a 6-sliding rod through hole, a 7-propping cylinder body, an 8-nitrogen spring, a 9-propping piston, a 10-left slip, a 11-oil cylinder body, a 12-oil cylinder cover, a 13-oil cylinder piston, a 14-loosening oil cylinder, a 15-right slip, a 16-sliding rod, a 17-ejector rod, a 18-flange, a 19-screw rod through hole, a 20-threaded hole, a 21-screw head, a 22-screw rod, a 23-drill rod guide seat, a 24-drill rod guide bearing, a 25-limiting ring, a 26-connecting plate and a 27-safety cover.
Detailed Description
Embodiments of the technical scheme of the present utility model are described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model. In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the utility model.
Examples: as shown in fig. 1 to 9, a hydraulic drill rod holder comprises a frame, a left holding device and a right holding device, wherein the frame comprises a bottom plate 1, a left vertical plate 2, a right vertical plate 3 and two connecting plates 26, a slip window 4 is arranged in the middle of the left vertical plate 2, ejector rod through holes 5 are respectively arranged in the middle upper part and the middle lower part of the left vertical plate 2, and slide rod through holes 6 are respectively arranged in the four corners of the left vertical plate 2; the right vertical plate 3 is provided with a slip window 4, a push rod through hole 5 and a slide rod through hole 6 which are horizontally symmetrical with the left vertical plate 2; the left clamping device comprises a jacking cylinder body 7, a nitrogen spring 8 and a jacking piston 9 are sequentially arranged in the jacking cylinder body 7 from left to right, and the right side of the jacking piston 9 is connected with a left slip 10 extending into a slip window 4 of the left vertical plate 2; the right clamping device comprises a loosening oil cylinder 14 which is composed of an oil cylinder body 11, an oil cylinder cover 12 and an oil cylinder piston 13, wherein the oil cylinder cover 12 is provided with an ejector rod through hole 5 which is coaxial with the ejector rod through holes 5 of the left vertical plate 2 and the right vertical plate 3, and the left side of the oil cylinder cover 12 is connected with a right slip 15 which extends into the slip window 4 of the right vertical plate 3; the jacking cylinder body 7 is connected with the loosening cylinder 14 through four slide bars 16 penetrating through the slide bar through holes 6 of the left vertical plate 2 and the right vertical plate 3; the jacking piston 9 and the oil cylinder piston 13 are supported by two ejector rods 17 penetrating through the left vertical plate 2, the right vertical plate 3 and the oil cylinder cover 12 and the ejector rod through holes 5. The right side end of the jacking cylinder body 7 is provided with a flange 18, the flange 17 is provided with a slide bar through hole 6 corresponding to the slide bar through holes 6 of the left vertical plate 2 and the right vertical plate 3, the oil cylinder cover 12 is provided with a screw rod through hole 19 with the diameter smaller than that of the slide bar through hole 6 corresponding to the slide bar through hole 6, and the left side end of the oil cylinder body 11 is provided with a threaded hole 20 corresponding to the screw rod through hole 19; the left end of the sliding rod 16 is provided with a screw head 21, the right end of the sliding rod 16 is provided with a screw rod 22 with the diameter smaller than that of the sliding rod, and the four sliding rods 16 penetrate through the flange 18, the left vertical plate 2 and the right vertical plate 3 and fix the sliding rod 16 and the oil cylinder cover 12 at the left end of the oil cylinder body 11 through the screw rod 22 at the right end of the through hole 6; the connected jacking cylinder 7 and the loosening cylinder 14 are guided by four slide bars 16 to leave a left-right sliding eccentric adjustment distance on the frame, and the eccentric adjustment distance is 28 mm. Drill rod guide seats 23 are arranged on the front sides of the left vertical plate 2 and the right vertical plate 3, and drill rod guide bearings 24 are arranged in the drill rod guide seats 23. A limiting ring 25 which can slide in the oil cylinder cover ejector rod through hole 5 is arranged on the ejector rod 17 at the position of the oil cylinder cover 12 ejector rod through hole 5. The right riser 3 is connected with a safety cover 27 covering the front, rear and right sides of the release cylinder 14.
The working process of the utility model is as follows:
(1) Clamping drill pipe operation
The nitrogen spring 8 is restored to extend to push the jacking piston 9 and the left slip 10 to extend, the distance between the left slip 10 and the right slip 15 is reduced, and the normally closed elastic clamping drill rod of the left slip 10 and the right slip 15 is realized.
(2) Loosening drill pipe
High-pressure oil is injected into the oil cylinder body 11, the oil cylinder piston 13 extends out, the oil cylinder piston 13 pushes the jacking piston 9 and the left slip 10 to move leftwards through the ejector rod 17, the nitrogen spring 8 is compressed, and the transverse distance between the left slip 10 and the right slip 15 is increased to loosen a drill rod.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model 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 scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (6)
1. The utility model provides a drilling rod hydraulic pressure holder, it includes frame, left clamping device and right clamping device, its characterized in that: the frame comprises a bottom plate, a left vertical plate and a right vertical plate, wherein a slip window is arranged in the middle of the left vertical plate, ejector rod through holes are respectively arranged at the middle upper part and the middle lower part of the left vertical plate, slide rod through holes are respectively arranged at four corners of the left vertical plate, and the right vertical plate is provided with a slip window, an ejector rod through hole and a slide rod through hole which are horizontally symmetrical with the left vertical plate; the left clamping device comprises a jacking cylinder body, a nitrogen spring and a jacking piston are sequentially arranged in the jacking cylinder body from left to right, and the right side of the jacking piston is connected with a left slip extending into a left riser slip window; the right clamping device comprises a loosening oil cylinder which is composed of an oil cylinder body, an oil cylinder cover and an oil cylinder piston, wherein the oil cylinder cover is provided with an ejector rod through hole which is coaxial with the left riser and the right riser ejector rod through hole, and the left side of the oil cylinder cover is connected with a right slip which extends into the right riser slip window; the jacking cylinder body is connected with the loosening cylinder through four slide bars penetrating through the slide bar through holes of the left vertical plate and the right vertical plate; the jacking piston and the oil cylinder piston are supported by two ejector rods penetrating through the left vertical plate, the right vertical plate and the oil cylinder cover ejector rod through holes.
2. The drill rod hydraulic clamp according to claim 1, wherein: the right side end of the jacking cylinder body is provided with a flange, the flange is provided with a slide bar through hole corresponding to the slide bar through holes of the left vertical plate and the right vertical plate, the cylinder cover is provided with a screw rod through hole corresponding to the slide bar through hole and having a diameter smaller than that of the slide bar through hole, and the left side end of the cylinder body is provided with a threaded hole corresponding to the screw rod through hole; the left side end of the sliding rod is provided with a screw head, the right side end of the sliding rod is provided with a screw rod with the diameter smaller than that of the sliding rod, and the sliding rod and the oil cylinder cover are fixed at the left side end of the oil cylinder body through the screw rods at the right ends of the four sliding rod through holes of the sliding rod penetrating through the flange, the left vertical plate and the right vertical plate; the propping cylinder body and the loosening cylinder which are connected together are guided by four sliding rods to keep left-right sliding eccentric adjustment space on the frame.
3. The drill rod hydraulic clamp according to claim 1 or 2, wherein: drill rod guide seats are arranged on the front sides of the left vertical plate and the right vertical plate, and drill rod guide bearings are arranged in the drill rod guide seats.
4. The drill rod hydraulic clamp according to claim 1 or 2, wherein: and a limiting ring capable of sliding in the oil cylinder cover ejector rod through hole is arranged on the ejector rod at the position of the oil cylinder cover ejector rod through hole.
5. The drill rod hydraulic clamp according to claim 1 or 2, wherein: two connecting plates are arranged between the upper ends of the left vertical plate and the right vertical plate.
6. The drill rod hydraulic clamp according to claim 1 or 2, wherein: the right vertical plate is connected with a safety cover which covers the front, the rear and the right side of the loosening oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222035093.4U CN219452034U (en) | 2022-07-29 | 2022-07-29 | Hydraulic clamp holder for drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222035093.4U CN219452034U (en) | 2022-07-29 | 2022-07-29 | Hydraulic clamp holder for drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219452034U true CN219452034U (en) | 2023-08-01 |
Family
ID=87384184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222035093.4U Active CN219452034U (en) | 2022-07-29 | 2022-07-29 | Hydraulic clamp holder for drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219452034U (en) |
-
2022
- 2022-07-29 CN CN202222035093.4U patent/CN219452034U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231102 Address after: 024000 No. 14 Yulong Qimao Road, Qiaobei Logistics Park, Hongshan District, Chifeng City, Inner Mongolia Autonomous Region Patentee after: Chifeng Qihang Mining Machinery Equipment Co.,Ltd. Address before: Yaojiawa Neighborhood Committee, Qiaobei Town, Hongshan District, Chifeng City, Inner Mongolia Autonomous Region, 024000 Patentee before: CHIFENG QIHANG DRILLING MACHINE FACTORY |