CN112728027A - Geotechnical engineering drilling device - Google Patents
Geotechnical engineering drilling device Download PDFInfo
- Publication number
- CN112728027A CN112728027A CN202011578313.7A CN202011578313A CN112728027A CN 112728027 A CN112728027 A CN 112728027A CN 202011578313 A CN202011578313 A CN 202011578313A CN 112728027 A CN112728027 A CN 112728027A
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- CN
- China
- Prior art keywords
- hydraulic
- hydraulic motor
- guide groove
- base
- transmission belt
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/14—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of a driving or driven pulley
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0842—Mounting or support of tensioner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0863—Finally actuated members, e.g. constructional details thereof
- F16H2007/0865—Pulleys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0891—Linear path
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a geotechnical engineering drilling device which comprises a hydraulic propelling component, a rotary clamping component and a drill rod, wherein the hydraulic propelling component is arranged on the drill rod; the rotary clamping assembly comprises a rotary part and a hydraulic clamping part; the rotating part comprises a base, a hydraulic motor, a transmission belt, a movable driving wheel and a plurality of tensioning cushion blocks, wherein the hydraulic motor is fixedly arranged on the base, the hydraulic motor is connected with the movable driving wheel through the transmission belt, a guide groove is formed in the base, a wheel shaft of the movable driving wheel is movably arranged in the guide groove, and a spring is arranged between the wheel shaft and the inner wall of the guide groove. According to the geotechnical engineering drilling device provided by the invention, the plurality of tensioning cushion blocks are arranged in the rotary clamping device for transmitting power by using the transmission belt, so that the distance between the hydraulic motor and the movable transmission wheel connected by using the transmission belt is adjustable, the tensioning force of the transmission belt is adjustable, the tensioning cushion blocks can be added in time to ensure that the tensioning force meets the requirement, the transmission effectiveness is ensured, and the adverse effect on the drilling operation progress is avoided.
Description
Technical Field
The invention relates to the technical field of engineering mechanical equipment, in particular to a drilling device for geotechnical engineering.
Background
The foundation construction is carried out without tamping foundation, directional blasting, soil anchoring and other engineering contents, wherein the soil anchoring is a technology for reinforcing rock-soil slope by pouring reinforced cement columns into rock stratum and soil through drilling. Because the topography of construction job site is comparatively complicated, and operational environment is comparatively abominable, has higher requirement to the stability of drilling equipment or device. Meanwhile, the working safety and stability of the drilling equipment directly influence the project progress and the project quality.
The existing drilling equipment generally adopts belt transmission and performs drilling by driving a drill rod. Because the belt is flexible, the temperature can also rise because of the friction after working for a period of time, the length of belt can increase by a wide margin, along with the extension of working time, probably cause the belt slack, even drop, influence power transmission, influence the operation progress even.
Disclosure of Invention
In view of the above, there is a need to provide a geotechnical drilling apparatus that addresses at least one of the problems noted above.
The geotechnical engineering drilling device provided by the invention comprises a bearing seat, a hydraulic propelling component, a rotary clamping component and a drill rod;
the hydraulic propelling component comprises a sliding seat and a hydraulic mechanism, and the hydraulic mechanism is arranged on the sliding seat; the sliding seat is connected with the bearing seat and can move on the bearing seat;
the rotary clamping assembly comprises a rotary part and a hydraulic clamping part; the drill rod is connected with the hydraulic clamping part and is driven to rotate by the rotating part;
the rotating part comprises a base, a hydraulic motor, a transmission belt, a movable driving wheel and a plurality of tensioning cushion blocks, the hydraulic motor is fixedly arranged on the base, the hydraulic motor and the movable driving wheel are connected through the transmission belt, a guide groove is formed in the base, a wheel shaft of the movable driving wheel is movably arranged in the guide groove, and the spring is arranged between the wheel shaft and the inner wall of the guide groove; the tensioning cushion block is arranged between the inner side wall facing the hydraulic motor and the wheel shaft in the guide groove;
the base is arranged on the sliding seat and can move on the sliding seat.
In one embodiment, the tensioning cushion block is a right-angled triangle cushion block, the tensioning cushion block comprises an inclined side, and the inclination angle of the inclined side is 5-15 degrees.
In one embodiment, the right-angled edges of the tension pad are provided with fillets or chamfers.
In one embodiment, the rotating portion further includes a pressure sensor provided on an inner side wall of the guide groove facing the hydraulic motor; the tensioning cushion block abuts against the pressure sensor.
The technical scheme provided by the embodiment of the invention has the following beneficial technical effects:
according to the geotechnical engineering drilling device provided by the invention, the plurality of tensioning cushion blocks are arranged in the rotary clamping device for transmitting power by using the transmission belt, so that the distance between the hydraulic motor and the movable transmission wheel connected by using the transmission belt is adjustable, the tensioning force of the transmission belt is also adjustable, even if the transmission belt is loosened due to temperature rise after long-term work, the tensioning cushion blocks can be timely increased to ensure that the tensioning force meets the requirement, the transmission effectiveness is ensured, and the adverse effect on the drilling operation progress is avoided.
Additional aspects and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic plan view illustrating a geotechnical engineering drilling apparatus in an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a distribution structure of tension blocks of a geotechnical engineering drilling device in an embodiment of the present invention;
FIG. 3 is a schematic diagram of an arrangement of tension blocks according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an arrangement of tension blocks in another embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Possible embodiments of the invention are given in the figures. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein by the accompanying drawings. The embodiments described by way of reference to the drawings are illustrative for the purpose of providing a more thorough understanding of the present disclosure and are not to be construed as limiting the present invention. Furthermore, if a detailed description of known technologies is not necessary for illustrating the features of the present invention, such technical details may be omitted.
It will be understood by those skilled in the relevant art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is to be understood that the term "and/or" as used herein is intended to include all or any and all combinations of one or more of the associated listed items.
The technical solution of the present invention and how to solve the above technical problems will be described in detail with specific examples.
The geotechnical engineering drilling device provided by the invention comprises a bearing seat (not shown in the figure), a hydraulic propulsion assembly 100, a rotary clamping assembly 200 and a drill rod 300. The hydraulic propulsion assembly 100 comprises a carriage 110 and a hydraulic mechanism 120, the hydraulic mechanism 120 being arranged on the carriage 110; the slider 110 is connected to the carriage and can move on the carriage. The rotary clamping assembly 200 includes a rotary part 210 and a hydraulic clamping part 220; the drill rod 300 is connected to the hydraulic clamping unit 220 and rotated by the rotating unit 210. The rotating part 210 comprises a base 211, a hydraulic motor 212, a transmission belt 213, a movable transmission wheel 214 and a plurality of tensioning cushion blocks 216, wherein the hydraulic motor 212 is fixedly arranged on the base 211, the hydraulic motor 212 is connected with the movable transmission wheel 214 through the transmission belt 213, a guide groove 211a is arranged on the base 211, a wheel shaft of the movable transmission wheel 214 is movably arranged in the guide groove 211a, and a spring 215 is arranged between the wheel shaft and the inner wall of the guide groove 211 a; the tension block 216 is disposed between the inner side wall of the guide groove 211a facing the hydraulic motor 212 and the wheel shaft. The base 211 is disposed on the slider 110 and is movable on the slider 110.
The geotechnical engineering drilling device mentioned in the above embodiments is actually a part of a rotary drilling rig in the prior art, can really complete drilling operation in actual work, and needs to be matched with other related components, for example, in a certain type of rotary drilling rig, the geotechnical engineering drilling device further comprises a chassis and a working device, wherein the chassis is provided with a moving mechanism, a chassis and a loading slewing mechanism, and the working device further comprises a luffing mechanism, a mast assembly, a hoisting mechanism, a drilling tool and the like besides the geotechnical engineering drilling device provided by the application. Since these necessary components are not important for the improvement of the present invention, they will not be further described.
The carrier may be considered as part of the mast assembly, and the hydraulic propulsion assembly 100 may be mounted to the carrier by a carriage 110, the carriage 110 being connected to a winch mechanism, which allows for a wide range of movement. The sliding base 110 is connected to the bearing base in a matching manner and moves closely on the bearing base. The hydraulic mechanism 120 and the rotary clamping assembly 200 are both arranged on the sliding base 110, and during drilling operation, the sliding base 110 can also be kept fixed on the bearing seat, and a detachable connecting fixing piece can be arranged between the sliding base 110 and the bearing seat.
The hydraulic clamp 220 on the rotary clamp assembly 200 is used to firmly clamp the drill rod 300, but of course, the drill rod 300 can be released and removed when the drill rod 300 needs to be replaced. The hydraulic clamping portion 220 is integrally connected to the rotating portion 210, and is integrally rotated by the driving of the rotating portion 210, so that the drill rod 300 is driven to rotate, and the drilling tool mounted on the drill rod 300 can be driven to rotate for drilling. Of course, the hydraulic clamping portion 220 may also be fixedly disposed on the base 211, so that the drill rod 300 may be directly connected to the rotating portion 210, that is, the movable driving wheel 214 in the rotating portion 210 may output power to the drill rod 300, in this way, the drill rod 300 may be clamped and kept stably by the hydraulic clamping portion 220, and may also rotate in the hydraulic clamping portion 220, specifically, at least two bearings may be disposed on the drill rod 300, the hydraulic clamping portion 220 is clamped on the bearings, and the drill rod 300 may rotate on the bearings.
The main power component of the rotating part 210 is a hydraulic motor 212, and the power of the hydraulic motor 212 is transmitted via a drive belt 213 to a movable drive pulley 214. And the movable transmission wheel 214 can move on the base 211, that is, the distance between the movable transmission wheel 214 and the hydraulic motor 212 can be adjusted, thereby providing an adjustment space for the tension transmission belt 213.
The axle of the movable driving wheel 214 is disposed in the guide groove 211a of the base 211, and the guide groove 211a is generally rectangular and has an opening facing the end surface of the base 211, so as to facilitate the insertion of the tension pad 216 at any time. Of course, in order to prevent the plurality of inserted tension pads 216 from falling off due to the mechanical vibration, a detachable stopper may be provided at the opening of the guide groove 211a to restrain the tension pads in the guide groove 211 a.
Optionally, in some embodiments of an embodiment of the present application, the rotating portion 210 further includes a pressure sensor disposed on an inner sidewall of the guide groove 211a facing the hydraulic motor 212; the tension pad 216 abuts against the pressure sensor. Through setting up pressure sensor, utilize pressure sensor to detect the tensile force size on the tensioning cushion 216, just also can monitor driving belt 213's tensile force size, so provide more accurate adjustment information for operating personnel. The pressure sensor can correspondingly transmit the pressure signal to a control module of the rotary drilling rig, and informs an operator of relevant information in the modes of sound or digital display and the like.
According to the geotechnical engineering drilling device provided by the invention, the plurality of tensioning cushion blocks 216 are arranged in the rotary clamping device for transmitting power by using the transmission belt 213, so that the distance between the hydraulic motor 212 and the movable transmission wheel 214 connected by using the transmission belt 213 is adjustable, the tensioning force of the transmission belt 213 is also adjustable, even if the transmission belt 213 is loosened due to temperature rise after long-term work, the tensioning cushion blocks 216 can be timely increased to ensure that the tensioning force meets the requirement, the transmission effectiveness is ensured, and the adverse effect on the drilling operation progress is avoided.
Optionally, in some implementations of an embodiment of the present application, as shown in FIG. 2, the tension pad 216 includes a sloped side, and the sloped side has a slope angle of 5-15 °. To facilitate the insertion of the tension pad 216 between the axle and the inner sidewall of the guide groove 211a, the tension pad 216 is designed to be wedge-shaped. Specifically, one cross-sectional shape of the tension block 216 may be a right trapezoid or a right triangle. Optionally, as shown in fig. 3, the right-angled edge of the tension block 216 is provided with a fillet or chamfer. By arranging the round angle or the chamfer angle at the right-angle edge of the tensioning cushion block 216, an insertion space can be reserved between two adjacent tensioning cushion blocks 216, and the new tensioning cushion block 216 can be conveniently wedged.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (4)
1. A geotechnical engineering drilling device is characterized by comprising a bearing seat, a hydraulic propelling assembly, a rotary clamping assembly and a drill rod;
the hydraulic propelling component comprises a sliding seat and a hydraulic mechanism, and the hydraulic mechanism is arranged on the sliding seat; the sliding seat is connected with the bearing seat and can move on the bearing seat;
the rotary clamping assembly comprises a rotary part and a hydraulic clamping part; the drill rod is connected with the hydraulic clamping part and is driven to rotate by the rotating part;
the rotating part comprises a base, a hydraulic motor, a transmission belt, a movable driving wheel, a spring and a plurality of tensioning cushion blocks, the hydraulic motor is fixedly arranged on the base, the hydraulic motor is connected with the movable driving wheel through the transmission belt, the base is provided with a guide groove, a wheel shaft of the movable driving wheel is movably arranged in the guide groove, and the spring is arranged between the wheel shaft and the inner wall of the guide groove; the tensioning cushion block is arranged between the inner side wall facing the hydraulic motor and the wheel shaft in the guide groove;
the base is arranged on the sliding seat and can move on the sliding seat.
2. The geotechnical engineering drilling device according to claim 1, wherein the tension pad includes an inclined side, and an inclination angle of the inclined side is 5-15 °.
3. The geotechnical engineering drilling device according to claim 2, wherein the right-angled edges of the tension pad are provided with fillets or chamfers.
4. The geotechnical drilling apparatus of claim 1 wherein said rotating portion further includes a pressure sensor disposed on an inner sidewall of said guide slot facing said hydraulic motor; the tensioning cushion block abuts against the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011578313.7A CN112728027A (en) | 2020-12-28 | 2020-12-28 | Geotechnical engineering drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011578313.7A CN112728027A (en) | 2020-12-28 | 2020-12-28 | Geotechnical engineering drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112728027A true CN112728027A (en) | 2021-04-30 |
Family
ID=75606214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011578313.7A Pending CN112728027A (en) | 2020-12-28 | 2020-12-28 | Geotechnical engineering drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112728027A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3541265A1 (en) * | 1985-11-22 | 1987-05-27 | Mahle Gmbh | Tensioning device for a belt or chain drive |
| CN102401098A (en) * | 2011-11-16 | 2012-04-04 | 宁波明润瑞达机械科技有限公司 | Transmission adjusting device |
| CN202377565U (en) * | 2011-12-13 | 2012-08-15 | 天津中杰科技发展有限公司 | Processing module capable of drilling holes in shifting mode for petroleum screen pipe |
| CN203248060U (en) * | 2013-05-18 | 2013-10-23 | 安徽恒源煤电股份有限公司 | Hydraulic drilling rig for drilling in coal mine |
| CN203399651U (en) * | 2013-08-09 | 2014-01-22 | 福建省亚明食品有限公司 | Bone sawing machine |
| CN103644285A (en) * | 2013-12-24 | 2014-03-19 | 湖州丰源农业装备制造有限公司 | Belt wheel, convenient for rotating speed adjustment, on harvesting machine |
| CN203751406U (en) * | 2014-03-28 | 2014-08-06 | 湖北九洲数控机床有限责任公司 | Multi-blade disk for milling main shaft neck of crankshaft |
| CN204728999U (en) * | 2015-05-15 | 2015-10-28 | 北京楠奇液压设备有限公司 | Drilling rig |
| CN206175583U (en) * | 2016-08-14 | 2017-05-17 | 浙江中星钢管机械有限公司 | Wheel mechanism on bracket |
| CN206503892U (en) * | 2016-10-28 | 2017-09-19 | 湖南机电职业技术学院 | A kind of FDM 3D printers synchronous belt tension device |
| CN206799835U (en) * | 2017-06-09 | 2017-12-26 | 沭阳双云服饰股份有限公司 | A kind of tensile force adjusts flexible apron support meanss |
| CN208089880U (en) * | 2018-04-08 | 2018-11-13 | 优尼可尔压缩机制造江苏有限公司 | A kind of belt transmission device for screw rod type compressor |
| KR101924724B1 (en) * | 2017-06-20 | 2018-12-03 | 한국광기술원 | Belt power transmission apparatus with tension control function and control method thereof |
| CN210128047U (en) * | 2019-03-26 | 2020-03-06 | 江苏福马高新动力机械有限公司 | Belt tension adjuster |
| CN211009771U (en) * | 2019-06-14 | 2020-07-14 | 苏州胜利精密制造科技股份有限公司 | Combined belt tensioning wheel |
-
2020
- 2020-12-28 CN CN202011578313.7A patent/CN112728027A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3541265A1 (en) * | 1985-11-22 | 1987-05-27 | Mahle Gmbh | Tensioning device for a belt or chain drive |
| CN102401098A (en) * | 2011-11-16 | 2012-04-04 | 宁波明润瑞达机械科技有限公司 | Transmission adjusting device |
| CN202377565U (en) * | 2011-12-13 | 2012-08-15 | 天津中杰科技发展有限公司 | Processing module capable of drilling holes in shifting mode for petroleum screen pipe |
| CN203248060U (en) * | 2013-05-18 | 2013-10-23 | 安徽恒源煤电股份有限公司 | Hydraulic drilling rig for drilling in coal mine |
| CN203399651U (en) * | 2013-08-09 | 2014-01-22 | 福建省亚明食品有限公司 | Bone sawing machine |
| CN103644285A (en) * | 2013-12-24 | 2014-03-19 | 湖州丰源农业装备制造有限公司 | Belt wheel, convenient for rotating speed adjustment, on harvesting machine |
| CN203751406U (en) * | 2014-03-28 | 2014-08-06 | 湖北九洲数控机床有限责任公司 | Multi-blade disk for milling main shaft neck of crankshaft |
| CN204728999U (en) * | 2015-05-15 | 2015-10-28 | 北京楠奇液压设备有限公司 | Drilling rig |
| CN206175583U (en) * | 2016-08-14 | 2017-05-17 | 浙江中星钢管机械有限公司 | Wheel mechanism on bracket |
| CN206503892U (en) * | 2016-10-28 | 2017-09-19 | 湖南机电职业技术学院 | A kind of FDM 3D printers synchronous belt tension device |
| CN206799835U (en) * | 2017-06-09 | 2017-12-26 | 沭阳双云服饰股份有限公司 | A kind of tensile force adjusts flexible apron support meanss |
| KR101924724B1 (en) * | 2017-06-20 | 2018-12-03 | 한국광기술원 | Belt power transmission apparatus with tension control function and control method thereof |
| CN208089880U (en) * | 2018-04-08 | 2018-11-13 | 优尼可尔压缩机制造江苏有限公司 | A kind of belt transmission device for screw rod type compressor |
| CN210128047U (en) * | 2019-03-26 | 2020-03-06 | 江苏福马高新动力机械有限公司 | Belt tension adjuster |
| CN211009771U (en) * | 2019-06-14 | 2020-07-14 | 苏州胜利精密制造科技股份有限公司 | Combined belt tensioning wheel |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210430 |