CN210343216U - Adjustable pulley applied to top-drive drilling device - Google Patents
Adjustable pulley applied to top-drive drilling device Download PDFInfo
- Publication number
- CN210343216U CN210343216U CN201920903796.XU CN201920903796U CN210343216U CN 210343216 U CN210343216 U CN 210343216U CN 201920903796 U CN201920903796 U CN 201920903796U CN 210343216 U CN210343216 U CN 210343216U
- Authority
- CN
- China
- Prior art keywords
- side plate
- plate
- sliding side
- drive drilling
- board
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims description 18
- 238000009434 installation Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Landscapes
- Sawing (AREA)
Abstract
The utility model relates to the technical field of oil exploitation equipment, in particular to an adjustable pulley applied to a top-drive drilling device, which comprises a main board, a left side plate and a right side plate which are respectively arranged at the two sides of the main board, a left sliding side plate and a right sliding side plate which are respectively arranged at the outer sides of the left side plate and the right side plate, a guide roller, a support roller and a fine-tuning locking mechanism; this novel guide idler who makes the coaster adapts to at all slot type double guide rails of certain extent with supporting roller, solves certain model rig and can only use in brand or model top drive drilling equipment and the use wearing and tearing produce the inaccurate and inaccurate problem of clearance grow position and go forward and retreat with scrapping because of error correction that the rig produced in making and the installation.
Description
Technical Field
The utility model relates to an oil development equipment technical field provides an adjustable coaster of being applied to on top drive drilling equipment very much.
Background
The drilling machines of different models are even the same as the drilling machines of the same model in a groove type double-guide-rail structure, but the conditions of different span between guide rails and different center distance from a wellhead exist in a certain range. This occurs because the rig is matched when different brands of top drive drilling equipment are selected depending on the use, i.e., a proprietary match. If the top drive drilling device fails to operate and allocate another brand of top drive drilling device to operate or a certain drilling machine needs to use different types of top drive drilling devices due to production tasks, the operation cannot be realized, and the mixed assembly of the pulleys of different types and the top drive drilling devices cannot be realized because the fixed connecting positions of the pulleys and the top drive drilling devices and the spatial configuration of the pulleys and the top drive drilling devices are unique. In this case, it is only necessary to wait for the top drive drilling unit to be repaired or for the top drive drilling unit manufacturer to have the same type of top drive drilling unit in stock or wait until the operation of one type of drilling machine is completed, resulting in a loss of daily cost.
In the long-time use process of the drilling machine, friction between the guide rail groove and the roller wheel increases, the gap between the guide rail and the roller wheel is enlarged, but the abrasion degree cannot reach the scrapped degree of the guide rail or the roller wheel, and the position becomes inaccurate in the operation process.
The manufacturing and installation errors of the span and the center distance of the groove type double guide rails. Because the length of the guide rail of the drilling machine is dozens of meters, errors cannot be avoided in the manufacturing and installation processes, and when the generated errors are larger than the use requirements and are difficult to correct, the drilling machine and the guide rail cannot be scrapped due to the cost of the drilling machine and the guide rail.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an adjustable coaster of being applied to on top drive drilling equipment.
The utility model is realized in such a way, the adjustable pulley applied to the top-driving drilling device comprises a main board, a left side plate and a right side plate which are respectively arranged at the two sides of the main board, a left sliding side plate and a right sliding side plate which are respectively arranged at the outer sides of the left side plate and the right side plate, a guide roller, a support roller and a fine-tuning locking mechanism; the left side plate and the right side plate respectively comprise a horizontal plate and a vertical plate vertical to the horizontal plate, a plurality of strip holes are arranged on the horizontal plate and the vertical plate and used for movably connecting the main plate with the horizontal plate left and right through bolts, the strip holes on the vertical plate are used for movably connecting the vertical plate with the left sliding side plate and the right sliding side plate up and down through bolts, a plurality of guide roller mounting holes are arranged at the corresponding positions of the left side plate and the left sliding side plate, the right side plate and the right sliding side plate and used for mounting guide rollers, a plurality of support roller positioning grooves are arranged at the outer sides of the left sliding side plate and the right sliding side plate and used for mounting support rollers, a plurality of fine adjustment locking mechanisms are arranged and respectively mounted at the contact position of the main plate and the horizontal plate, the upper and lower ends of the left sliding side plate and the upper and lower ends of the right sliding side plate and the upper and lower ends of, the micro-adjusting mechanism is used for micro-adjusting the relative positions of the left side plate, the right side plate and the main plate and the relative positions of the left sliding side plate, the right sliding side plate and the main plate.
Further, fine setting locking mechanism includes fixing base, lead screw, latch segment, protective frame and protective cover, and the fixing base is the cross, fixes on left side board, right side board and the mainboard, and the lead screw is rectangle screw thread circle lead screw in the middle of the end hexagonal, is equipped with two lead screws, fixes through the fixing base screw thread respectively, and two latch segments are passed respectively at the both ends of lead screw, establishes the loose piece between two latch segments, and the hole of latch segment is the rectangle screw thread, and protective frame both ends correspond the position and establish the engaging lug, connect on left side board, right side board, left side slip curb plate and right slip curb plate through the engaging lug, and the protective cover lid is on the protective frame.
Furthermore, the wheel handle of the guide roller extends into the guide roller mounting holes at the corresponding positions of the left side plate and the left sliding side plate, and the right side plate and the right sliding side plate, extends out of the mounting holes, and is locked by the locking nuts.
Furthermore, guide rollers are provided with 6, three groups of guide rollers are respectively arranged in guide roller mounting holes at corresponding positions of the left side plate and the left sliding side plate and the right sliding side plate, the number of support rollers is four, the four support rollers are uniformly distributed in support roller positioning grooves of the left sliding side plate and the right sliding side plate, and the guide rollers and the support rollers are arranged at intervals.
Further, still include the scale, 8 are established to the scale, fix respectively on the mainboard that the both ends of the vertical board of left side board, right side board and the horizontal plate both ends of left side board, right side board correspond to on the horizontal plate of left side board, right side board and the position that the scale corresponds establish the sight star, the sight star is wide 2mm, dark 2 mm's recess.
Compared with the prior art, the utility model has the advantages of: this adjustable coaster uses modularization integrated design, the span about having, the front and back centre-to-centre spacing is adjustable, the scale sight structure is adjusted accurately conveniently, supporting roller and guide roller installation are dismantled and are changed convenient quick, applicable in different spans in the certain limit, apart from well head centre-to-centre spacing, the double guide rail rig of groove width, it can only use a brand or model top drive drilling equipment and wearing and tearing produce the inaccurate and carry out the problem of clearance grow position and two difficulties of advancing and retreating because of error correction that produces in rig guide rail manufacturing and the installation in the use to solve certain model rig, make the rig or top drive drilling equipment that the cost is expensive obtain make full use as far as possible.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the structure of FIG. 1;
FIG. 3 is a schematic diagram of a motherboard structure;
FIG. 4 is a schematic diagram of a left side plate structure;
FIG. 5 is a schematic view of the left sliding side plate;
FIG. 6 is a schematic view of a fine adjustment locking mechanism;
fig. 7 is a schematic diagram of the position of the scale.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, 2, 3, 4, and 5, the present invention provides an adjustable pulley applied to a top-drive drilling device, including a main plate 1, a left side plate 2 and a right side plate 3 respectively installed at two sides of the main plate 1, a left sliding side plate 4 and a right sliding side plate 5 respectively installed at the outer sides of the left side plate 2 and the right side plate 3, a guide roller 6, a support roller 7, and a fine-tuning locking mechanism; the left side plate 2 and the right side plate 3 both comprise a horizontal plate and a vertical plate perpendicular to the horizontal plate, a plurality of strip holes are formed in the horizontal plate and the vertical plate, the strip holes in the horizontal plate are used for movably connecting the main plate 1 and the horizontal plate left and right through bolts, the strip holes in the vertical plate are used for movably connecting the vertical plate with the left sliding side plate 4 and the right sliding side plate 5 up and down through bolts, a plurality of guide roller mounting holes are formed in the corresponding positions of the left side plate 2 and the left sliding side plate 4 and the corresponding positions of the right side plate 3 and the right sliding side plate 5 and used for mounting guide rollers 6, a plurality of support roller positioning grooves are formed in the outer sides of the left sliding side plate 4 and the right sliding side plate 5 and used for mounting support rollers 7, a fine-adjustment locking mechanism is provided with a plurality of guide roller positioning grooves, the guide roller positioning grooves are respectively mounted at the positions where the main plate 1 is in contact with the horizontal plate, The upper end and the lower end of the right sliding side plate 5 are used for finely adjusting the relative positions of the left side plate 2, the right side plate 3 and the main plate 1 and the relative positions of the left sliding side plate 4, the right sliding side plate 5 and the main plate 1.
The left and right spans of the pulley support rollers 7 and the distance between the guide rollers 6 and the main plate 1 (the distance is related to the distance between the guide rail and the center of the wellhead) are adjusted according to the use requirements. The adjusting method comprises the following steps of adjusting the left side plate 2, the right side plate 3, the left sliding side plate 4 and the right sliding side plate 5 to approximate positions by using a manual hydraulic jack or a crowbar or even directly using hands, adjusting a fine-tuning locking mechanism, and fine-tuning the distance between the two side plates and the distance between the sliding side plates and the main plate.
As an optimal fine setting locking mechanism, refer to fig. 6, including fixing base 8, lead screw 9, latch segment 10, protective frame 11 and protective cover 12, fixing base 8 is the cross, fixes on left side board 2, right side board 3 and mainboard 1, lead screw 9 is the middle rectangle screw thread circle lead screw of end hexagonal, is equipped with two lead screw 9, lives through fixing base screw thread fixation respectively, and two latch segments 10 are passed respectively at lead screw 9's both ends, establishes locking gasket between two latch segments 10, and the hole of latch segment 10 is the rectangle screw thread, and the engaging lug is established to the corresponding position in protective frame 11 both ends, connects on left side board 2, right side board 3, left side slide curb plate 4 and right slide curb plate 5 through the engaging lug, and protective cover 12 covers on protective frame 11.
When utilizing this fine setting locking mechanism to carry out the fine setting, rotating lead screw 9, lead screw 9 terminal surface promotes 11 inner walls of protective frame and drives left side board 2 or right side board 3 or left slip curb plate 4, the 5 fine movements of right side slip curb plate, then screw up fine setting latch segment 10 and locking gasket after the position adjustment is suitable, can effectively prevent when violent vibrations and gyro wheel atress in the top drive drilling equipment operation, 2 right side boards of left side board 3 and two slip curb plate fixing bolt are not hard up or frictional force is not enough to arouse the slip that 2 right side boards of left side board 3 and two slip curb plates received the production of reaction torque force. Then the protecting cover 12 is fixed on the upper end face of the protecting frame 11 by screws to cover tightly. The protective frame 11 has two functions: firstly, the thrust of transmission lead screw terminal surface drives about curb plate or the fine motion of slip curb plate, secondly protects inside fixing base 8, lead screw 9, latch segment 10 not receive the damage of foreign object and the invasion rust of various pollutants such as mud rainwater. The protective cover 12 also protects the internal fixing seat 8, the screw 9 and the locking block 10 from being damaged by foreign objects and from being invaded by various pollutants such as slurry, rainwater and the like, rusting and rusting.
The adjustable pulley is installed on the top driving drilling device after being adjusted, the adjustable pulley can be continuously adjusted in the installed state according to the actual operation condition when reaching the use field, and the adjusting method is the same as the above.
As a preferable connection mode, the wheel handle of the guide roller 6 extends into the guide roller mounting holes at the corresponding positions of the left side plate 2 and the left sliding side plate 4, and the right side plate 3 and the right sliding side plate 5, extends out of the mounting holes, and is locked by the locking nuts. The guide rollers 6 guide the top drive drilling device left and right when moving up and down along the guide rails to keep the top drive drilling device in a vertical state in the left and right direction and secondly bear the force generated by the reaction torque of the secondary guide rails.
As a preferred embodiment, the number of the guide rollers 6 is 6, three guide rollers are respectively arranged in the guide roller mounting holes at the corresponding positions of the left side plate 2 and the left sliding side plate 4, and the right side plate 3 and the right sliding side plate 5, the number of the support rollers 7 is four, the four support rollers are respectively arranged in the support roller positioning grooves of the left sliding side plate 4 and the right sliding side plate 5, and the guide rollers 6 and the support rollers 7 are arranged at intervals. The guide rollers 6 mainly bear the force generated by the reaction torque of the guide rail, and then the top drive drilling device keeps a vertical state in the front-rear direction under the front-rear guide action when moving up and down along the guide rail.
In order to make the distance of fine setting more accurate, as the improvement of technical scheme, refer to fig. 2 and fig. 7, still include scale 13, 8 are established to scale 13, fix respectively on mainboard 1 that the both ends of the vertical board of left side board 2, right side board 3 and the horizontal plate both ends of left side board 2, right side board 3 correspond to slide left side board 4, slide right side board 5, and the horizontal plate of left side board 2, set up the sight on the horizontal plate of right side board 3 and the position that scale 13 corresponds, the sight is 2mm wide, 2mm deep recess.
Claims (5)
1. The adjustable pulley applied to the top drive drilling device is characterized by comprising a main plate (1), a left side plate (2) and a right side plate (3) which are respectively arranged at two sides of the main plate (1), a left sliding side plate (4) and a right sliding side plate (5) which are respectively arranged at the outer sides of the left side plate (2) and the right side plate (3), a guide roller (6), a support roller (7) and a fine adjustment locking mechanism; left side board (2) and right side board (3) all include the vertical board that a horizontal plate and perpendicular horizontal plate set up, all be equipped with a plurality of rectangular holes on horizontal plate and the vertical board, rectangular hole on the horizontal plate is used for movably connecting mainboard (1) and horizontal plate about through the bolt, rectangular hole on the vertical board is used for movably connecting vertical board and left slip curb plate (4) from top to bottom through the bolt, right side slip curb plate (5), in left side board (2) and left slip curb plate (4), on the corresponding position of right side board (3) and right slip curb plate (5), all be equipped with a plurality of guide roller mounting holes, be used for installing guide roller (6), in the outside of left slip curb plate (4) and right slip curb plate (5), all be equipped with a plurality of support roller constant head tanks, be used for installing support roller (7), fine setting locking mechanism is equipped with a plurality ofly, install respectively in mainboard (1) and left side board (2) of horizontal plate contact, The upper end and the lower end of the left sliding side plate (4), the upper end and the lower end of the right sliding side plate (3) and the right sliding side plate (5) are used for finely adjusting the relative positions of the left side plate (2), the right side plate (3) and the main plate (1) and the relative positions of the left sliding side plate (4), the right sliding side plate (5) and the main plate (1).
2. The adjustable pulley applied to the top-drive drilling device as claimed in claim 1, wherein the fine-tuning locking mechanism comprises a fixed seat (8), a lead screw (9), locking blocks (10), a protective frame (11) and a protective cover (12), the fixed seat (8) is cross-shaped and fixed on the left side plate (2), the right side plate (3) and the main plate (1), the lead screw (9) is a hexagonal middle rectangular thread round lead screw, two lead screws (9) are arranged and fixed through the fixed seat threads respectively, two ends of the lead screw (9) pass through the two locking blocks (10) respectively, a loose-proof gasket is arranged between the two locking blocks (10), an inner hole of each locking block (10) is a rectangular thread, connecting lugs are arranged at corresponding positions of two ends of the protective frame (11) and connected to the left side plate (2), the right side plate (3), the left sliding side plate (4) and the right sliding side plate (5) through the connecting lugs, the protective cover (12) covers the protective frame (11).
3. An adjustable pulley for a top drive drilling unit according to claim 1, wherein the handle of the guide roller (6) extends into the guide roller mounting hole at the corresponding position of the left side plate (2) and the left sliding side plate (4) and the right side plate (3) and the right sliding side plate (5), extends out of the guide roller mounting hole, and is locked by the locking nut.
4. The adjustable pulley for a top drive drilling rig as claimed in claim 1, wherein the number of the guide rollers (6) is 6, three guide rollers are respectively arranged in the guide roller mounting holes at the corresponding positions of the left side plate (2) and the left sliding side plate (4) and the right side plate (3) and the right sliding side plate (5), the number of the support rollers (7) is four, the four support rollers are evenly distributed in the support roller positioning grooves of the left sliding side plate (4) and the right sliding side plate (5), and the guide rollers (6) and the support rollers (7) are arranged at intervals.
5. The adjustable pulley applied to the top-drive drilling device is characterized by further comprising 8 scales (13), wherein the 8 scales (13) are respectively fixed on the main plate (1) corresponding to the two ends of the vertical plate of the left side plate (2) and the right side plate (3) and the two ends of the horizontal plate of the left side plate (2) and the right side plate (3), and the positions, corresponding to the scales (13), of the horizontal plate of the left sliding side plate (4), the right sliding side plate (5) and the horizontal plate of the left side plate (2) and the horizontal plate of the right side plate (3) are provided with alignment stars, and the alignment stars are grooves with the width of 2mm and the depth of 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920903796.XU CN210343216U (en) | 2019-06-17 | 2019-06-17 | Adjustable pulley applied to top-drive drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920903796.XU CN210343216U (en) | 2019-06-17 | 2019-06-17 | Adjustable pulley applied to top-drive drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210343216U true CN210343216U (en) | 2020-04-17 |
Family
ID=70186038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920903796.XU Active CN210343216U (en) | 2019-06-17 | 2019-06-17 | Adjustable pulley applied to top-drive drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210343216U (en) |
-
2019
- 2019-06-17 CN CN201920903796.XU patent/CN210343216U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111786532B (en) | Concatenation formula linear electric motor module | |
| CN210343216U (en) | Adjustable pulley applied to top-drive drilling device | |
| CN214653062U (en) | Quality detection equipment for mechanical structure of crane | |
| CN213294555U (en) | Moving device for well plugging device of drilling machine | |
| CN210653120U (en) | Process bogie | |
| CN215549868U (en) | Concrete guardrail sound barrier drilling equipment | |
| CN114622833A (en) | Petroleum workover rig with horizontal orientation function | |
| CN210732281U (en) | Mounting equipment of auto repair service creeper | |
| CN211491361U (en) | Adjusting mechanism, adjuster and vertical double-motion module device | |
| CN213817459U (en) | Dustproof and lubricating oil pumping unit motor belt rapid adjusting device | |
| CN216869839U (en) | Stud stress detection device | |
| CN221773983U (en) | Auxiliary supporting device for skin countersink drill | |
| CN219548421U (en) | Profile steel locating rack with locating function | |
| CN214655571U (en) | Aluminum cover assembling structure of computerized flat knitting machine | |
| CN209755186U (en) | Point-to-point auxiliary tool for train end door installation | |
| CN214851204U (en) | Signal receiving device for software engineering | |
| CN220533256U (en) | Coding device for worm gear speed reducer shell | |
| CN219944209U (en) | Mounting and testing tool for follow-up material supporting mechanism of bending machine | |
| CN219012539U (en) | Auxiliary positioner for drilling well | |
| CN205426474U (en) | Be used for car tractive track for bump test | |
| CN218780348U (en) | Coal mining machine convenient to position | |
| CN214655128U (en) | Quenching positioning device for mine rack | |
| CN220563570U (en) | Upper door guide rail structure of vacuum chamber | |
| CN221416491U (en) | Hydraulic cylinder piston mounting tool | |
| CN213986473U (en) | Geotechnical engineering investigation informatization integrated supervision equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Adjustable pulley applied to top drive drilling unit Effective date of registration: 20210429 Granted publication date: 20200417 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2021210000022 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220512 Granted publication date: 20200417 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2021210000022 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Adjustable tackle for top drive drilling unit Effective date of registration: 20220516 Granted publication date: 20200417 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2022210000043 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230601 Granted publication date: 20200417 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2022210000043 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Adjustable pulley applied to top drive drilling equipment Effective date of registration: 20230605 Granted publication date: 20200417 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2023210000131 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200417 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2023210000131 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Adjustable pulley applied to top drive drilling equipment Granted publication date: 20200417 Pledgee: Panjin science and technology Financing Guarantee Co.,Ltd. Pledgor: PANJIN LIAOHE OILFIELD TIANYI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2024210000060 |