CN110686142A - Vibration damping base for rotary drilling rig - Google Patents
Vibration damping base for rotary drilling rig Download PDFInfo
- Publication number
- CN110686142A CN110686142A CN201910874276.5A CN201910874276A CN110686142A CN 110686142 A CN110686142 A CN 110686142A CN 201910874276 A CN201910874276 A CN 201910874276A CN 110686142 A CN110686142 A CN 110686142A
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- Prior art keywords
- fixedly connected
- frame
- damping
- drilling rig
- rotary drilling
- 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
- 238000013016 damping Methods 0.000 title claims abstract description 38
- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000035939 shock Effects 0.000 claims description 21
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- VSHLILKLIDPGCI-UHFFFAOYSA-N 4-chloro-6-(6-chloro-7-hydroxy-2,4,4-trimethyl-3h-chromen-2-yl)benzene-1,3-diol Chemical compound O1C2=CC(O)=C(Cl)C=C2C(C)(C)CC1(C)C1=CC(Cl)=C(O)C=C1O VSHLILKLIDPGCI-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a damping base for a rotary drilling rig, which comprises a crawler frame, wherein the top of the crawler frame is fixedly connected with a rotating platform, a machine body is arranged above the rotating platform, the bottom of the machine body is fixedly connected with a rotating block, crawler wheels are respectively arranged on two sides of the crawler frame, a pair of fixed rods are fixedly connected on the inner wall of the top of the crawler frame, the bottom ends of the fixed rods are fixedly connected with a fixed frame, two ends of the fixed frame are fixedly connected on the inner wall of the crawler frame, a hydraulic cylinder is fixedly arranged on the top of the fixed frame, first damping mechanisms are arranged on two sides of the hydraulic cylinder, the bottom end of an output shaft of the hydraulic cylinder is fixedly connected with a transmission frame, a positioning plate is fixedly connected on the bottom of the. The invention has the characteristics of reasonable structural design, good damping effect, high stability and the like.
Description
Technical Field
The invention relates to the technical field of construction machinery, in particular to a damping base for a rotary drilling rig.
Background
The rotary drilling rig is also called a rotary excavator and a pile driver, is a comprehensive drilling rig, can use various bottom layers, and has the characteristics of high hole forming speed, less pollution, strong maneuverability and the like. The short auger bit can be used for dry excavation, the rotary drill bit can be used for wet excavation under the condition of slurry retaining walls, and the rotary excavator can be used for performing hole excavation after a hard stratum is drilled by matching with a hammer. The rotary excavating machine adopts a plurality of layers of telescopic drill rods, has less drilling auxiliary time and low labor intensity, does not need slurry to discharge slag circularly, saves cost and is particularly suitable for the basic construction of urban construction.
The rotary drilling rig often generates great vibration during construction, and the conventional rotary drilling rig is not provided with corresponding damping equipment due to the structural design, so that the rotary drilling rig is easy to collide due to vibration in the working process, related parts are damaged, the service life of the rotary drilling rig is further influenced, and the rotary drilling rig is urgently required to be improved.
Disclosure of Invention
The invention provides a damping base for a rotary drilling rig, which aims to overcome the defects that the rotary drilling rig in the prior art is lack of a damping mechanism and parts are easy to collide and then damaged. The damping base for the rotary drilling rig has the characteristics of reasonable structural design, good damping effect, high stability and the like.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a vibration damping mount for rotary drilling rig, includes the track frame, the top fixedly connected with revolving stage of track frame, its top is provided with the fuselage, the bottom fixedly connected with of fuselage revolves the piece, the athey wheel is all installed to the both sides of track frame, a pair of dead lever of its top inner wall fixedly connected with, the bottom fixedly connected with mount of dead lever, the both ends fixed connection of mount is at the inner wall of track frame, and its top fixed mounting has the pneumatic cylinder, the both sides of pneumatic cylinder are provided with first damper, and its output shaft bottom fixedly connected with drive frame, the bottom fixedly connected with locating plate of drive frame, the top both sides of locating plate are provided with second damper, a plurality of locating levers of its bottom fixedly connected with.
Preferably, the two sides of the bottom of the fixing frame are fixedly connected with a pair of upper connecting seats, the two sides of the top of the positioning plate are fixedly connected with a pair of lower connecting seats, the lower connecting seats are located under the upper connecting seats, the lower connecting seats and the upper connecting seats are movably connected with connecting rods, the number of the connecting rods is multiple, and every two adjacent connecting rods are movably connected.
Preferably, the top of the rotating platform is provided with a rotating groove matched with the rotating block, and the rotating groove and the rotating block are both T-shaped.
Preferably, first damper includes a pair of support, support fixed connection is on the mount, just fixedly connected with slide bar between the support, the both ends pole body of slide bar is all overlapped and is equipped with the slider, the first spring of fixedly connected with between the slider, just the top fixedly connected with sliding seat of slider, swing joint has the transfer line on the sliding seat, the top of support is provided with the shock attenuation board, a pair of fixing base of bottom fixedly connected with of shock attenuation board, the other end swing joint of transfer line is on the fixing base.
Preferably, a plurality of hemispherical rubber blocks are uniformly distributed on the top surface of the damping plate.
Preferably, second damper includes the shock attenuation frame, shock attenuation frame fixed connection is on the driving frame, and the spout has all been seted up to its both sides lateral wall, the snubber block has been inserted in the spout, the both ends fixedly connected with stopper of snubber block, its top fixedly connected with shock attenuation pole, shock attenuation pole fixed connection is in the bottom of mount, the bottom fixedly connected with second spring of snubber block, the bottom fixed connection of second spring is on the driving frame.
Preferably, a plurality of triangular barbs are uniformly distributed on the rod body of the positioning rod.
Compared with the prior art, the invention has the beneficial effects that:
the damping base for the rotary drilling rig is reasonable in structural design, the body can be positioned by the positioning plate, so that the stability of the damping base is improved, the body is prevented from shaking during working, the vibration amplitude generated during operation of the body can be effectively reduced by the first damping mechanism and the second damping mechanism, and related parts are prevented from being damaged due to collision generated by vibration.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a first damping mechanism;
fig. 3 is a schematic structural view of the second damper mechanism.
Reference numbers in the figures: 1. a track frame; 2. a rotating table; 3. a body; 4. rotating the block; 5. a crawler wheel; 6. fixing the rod; 7. a fixed mount; 8. a hydraulic cylinder; 9. a transmission frame; 10. positioning a plate; 11. positioning a rod; 12. an upper connecting seat; 13. a lower connecting seat; 14. a connecting rod; 15. rotating the groove; 16. a support; 17. a slide bar; 18. a slider; 19. a first spring; 20. a movable seat; 21. a transmission rod; 22. a damper plate; 23. a fixed seat; 24. a shock-absorbing mount; 25. a chute; 26. a damper block; 27. a limiting block; 28. a shock-absorbing lever; 29. a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a shock absorption base for a rotary drilling rig comprises a track frame 1, wherein the top of the track frame 1 is fixedly connected with a rotary table 2, a machine body 3 is arranged above the rotary table 2, the bottom of the machine body 3 is fixedly connected with a rotary block 4, the top of the rotary table 2 is provided with a rotary groove 15 matched with the rotary block 4, the rotary groove 15 and the rotary block 4 are both T-shaped, the rotary block 4 can rotate in the rotary groove 15, track wheels 5 are arranged on two sides of the track frame 1, the inner wall of the top of the track frame 1 is fixedly connected with a pair of fixed rods 6, the bottom end of each fixed rod 6 is fixedly connected with a fixed frame 7, two ends of each fixed frame 7 are fixedly connected with the inner wall of the track frame 1, a hydraulic cylinder 8 is fixedly arranged on the top of the track frame, the model of the hydraulic cylinder 8 is CX-SD LA CHTB/ISD/J32405063X 20X 60, first shock absorption mechanisms are arranged on two sides of the, and a slide bar 17 is fixedly connected between the brackets 16, slide blocks 18 are sleeved on both ends of the slide bar 17, a first spring 19 is fixedly connected between the slide blocks 18, the top of the slide block 18 is fixedly connected with a movable seat 20, a transmission rod 21 is movably connected on the movable seat 20, a damping plate 22 is arranged above the brackets 16, a plurality of hemispherical rubber blocks are uniformly distributed on the top surface of the damping plate 22, the rubber blocks have elasticity and can elastically deform when being extruded, so that the effect of buffering and damping can be achieved, a pair of fixed seats 23 is fixedly connected at the bottom of the damping plate 22, the other end of the transmission rod 21 is movably connected on the fixed seats 23, a hydraulic cylinder 8 is externally connected with a power supply through a wire, a transmission frame 9 is fixedly connected at the bottom of an output shaft of the hydraulic cylinder 8, a positioning plate 10 is fixedly connected at the bottom of the transmission frame 9, second damping, the shock absorption frame 24 is fixedly connected on the transmission frame 9, the side walls of the two sides of the shock absorption frame are respectively provided with a sliding groove 25, a shock absorption block 26 is inserted in the sliding groove 25, two ends of the shock absorption block 26 are fixedly connected with a limiting block 27, the width of the limiting block 27 is larger than the groove width of the sliding groove 25 and can play a limiting role so as to avoid the shock absorption block 26 from shaking left and right, the top of the shock absorption block 26 is fixedly connected with a shock absorption rod 28, the shock absorption rod 28 is fixedly connected at the bottom of the fixed frame 7, the bottom of the shock absorption block 26 is fixedly connected with a second spring 29, the bottom of the second spring 29 is fixedly connected on the transmission frame 9, the bottom of the positioning plate 10 is fixedly connected with a plurality of positioning rods 11, a plurality of triangular barbs are uniformly distributed on the rod body of the positioning rods 11, the friction force between the positioning rods 11, thereby improve its stability, in order to avoid during operation fuselage 3 to take place to rock, the equal fixedly connected with in a pair of connecting seat 12 on the bottom both sides of mount 7, the equal fixedly connected with in the top both sides of locating plate 10 is a pair of connecting seat 13 down, lower connecting seat 13 is located connecting seat 12 under, and equal swing joint has connecting rod 14 on connecting seat 13 and the last connecting seat 12 down, connecting rod 14 has a plurality of roots, and be swing joint between per two adjacent connecting rod 14, can drive connecting rod 14 when locating plate 10 downstream takes place to rotate, utilize connecting rod 14 can play the effect of holding back, in order to avoid locating plate 10 to take place to rock and slope in the motion process.
The working principle is as follows: when the invention is used, the machine body 3 can rotate through the mutual matching between the rotary block 4 and the rotary groove 15 so as to adjust the construction angle according to the requirement, when in construction, the hydraulic cylinder 8 is driven by the external power supply to drive the transmission frame 9 and the positioning plate 10 to move downwards until the positioning rod 11 at the bottom of the positioning plate 10 is inserted into the ground, so that the machine body 3 is positioned by the positioning plate 10, thereby improving the stability of the machine body 3 to avoid the machine body 3 from shaking in work, when the machine body 3 vibrates due to operation, downward pressure is firstly exerted on the damping plate 22, at the moment, the sliding blocks 18 at the two ends of the sliding rod 17 are prevented from sliding towards two sides under the elastic action of the first spring 19 to avoid the transmission rod 21 from rotating, so that the damping plate 22 can be tightly pressed against the inner wall at the top of the track frame 1 through the transmission rod 21, and the damping plate 22 can play a damping and buffering effect, so as to reduce the amplitude of the vibration of the body 3, and at the same time, the fixed frame 7 can be supported and fixed by the shock-absorbing rod 28 under the elastic action of the second spring 29, so as to achieve a further shock-absorbing effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a vibration damping mount for rotary drilling rig, includes track frame (1), its characterized in that: the top of the crawler frame (1) is fixedly connected with a rotating platform (2), a machine body (3) is arranged above the rotating platform, the bottom of the machine body (3) is fixedly connected with a rotary block (4), two sides of the crawler frame (1) are respectively provided with a crawler wheel (5), a pair of fixed rods (6) is fixedly connected with the inner wall of the top of the fixing device, the bottom ends of the fixed rods (6) are fixedly connected with a fixed frame (7), two ends of the fixing frame (7) are fixedly connected with the inner wall of the crawler frame (1), the top of the damping device is fixedly provided with a hydraulic cylinder (8), two sides of the hydraulic cylinder (8) are provided with first damping mechanisms, the bottom end of an output shaft of the transmission device is fixedly connected with a transmission frame (9), the bottom of the transmission frame (9) is fixedly connected with a positioning plate (10), and second damping mechanisms are arranged on two sides of the top of the positioning plate (10), and a plurality of positioning rods (11) are fixedly connected to the bottom of the positioning plate.
2. The damping base for the rotary drilling rig according to claim 1, characterized in that: the all fixedly connected with of bottom both sides of mount (7) is a pair of connecting seat (12) of going up, the all fixedly connected with of top both sides of locating plate (10) is a pair of connecting seat (13) down, connecting seat (13) are located under connecting seat (12) down, just all swing joint has connecting rod (14) on connecting seat (13) and the last connecting seat (12) down, connecting rod (14) have a plurality of, and per adjacent two be swing joint between connecting rod (14).
3. The damping base for the rotary drilling rig according to claim 1, characterized in that: the top of the rotating platform (2) is provided with a rotating groove (15) matched with the rotating block (4), and the rotating groove (15) and the rotating block (4) are both T-shaped.
4. The damping base for the rotary drilling rig according to claim 1, characterized in that: first damper includes a pair of support (16), support (16) fixed connection is on mount (7), just fixedly connected with slide bar (17) between support (16), the both ends pole body of slide bar (17) all overlaps and is equipped with slider (18), the first spring of fixedly connected with (19) between slider (18), just the top fixedly connected with sliding seat (20) of slider (18), swing joint has transfer line (21) on sliding seat (20), the top of support (16) is provided with shock attenuation board (22), a pair of fixing base (23) of bottom fixedly connected with of shock attenuation board (22), the other end swing joint of transfer line (21) is on fixing base (23).
5. The damping base for the rotary drilling rig according to claim 4, characterized in that: and a plurality of hemispherical rubber blocks are uniformly distributed on the top surface of the damping plate (22).
6. The damping base for the rotary drilling rig according to claim 1, characterized in that: second damper includes shock attenuation frame (24), shock attenuation frame (24) fixed connection is on driving frame (9), and spout (25) have all been seted up to its both sides lateral wall, snubber block (26) have been inserted in spout (25), both ends fixedly connected with stopper (27) of snubber block (26), its top fixedly connected with shock-absorbing rod (28), shock-absorbing rod (28) fixed connection is in the bottom of mount (7), the bottom fixedly connected with second spring (29) of snubber block (26), the bottom fixed connection of second spring (29) is on driving frame (9).
7. The damping base for the rotary drilling rig according to claim 1, characterized in that: a plurality of triangular barbs are uniformly distributed on the rod body of the positioning rod (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874276.5A CN110686142A (en) | 2019-09-17 | 2019-09-17 | Vibration damping base for rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910874276.5A CN110686142A (en) | 2019-09-17 | 2019-09-17 | Vibration damping base for rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110686142A true CN110686142A (en) | 2020-01-14 |
Family
ID=69109315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910874276.5A Pending CN110686142A (en) | 2019-09-17 | 2019-09-17 | Vibration damping base for rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110686142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253737A (en) * | 2020-10-15 | 2021-01-22 | 陇东学院 | A quick mounting structure for gear reducer |
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| CN1687539A (en) * | 2005-05-25 | 2005-10-26 | 石午江 | Multifunctional Electric Rotary Drilling Rig |
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| CN207587288U (en) * | 2017-12-22 | 2018-07-06 | 上海直真视通科技有限公司 | A kind of conference reservation screen of Zigbee equipment control |
| CN208166483U (en) * | 2018-04-10 | 2018-11-30 | 安徽科蓝特铝业有限公司 | A kind of full automatic lifting aluminium alloy extrusions |
| CN209012326U (en) * | 2018-08-30 | 2019-06-21 | 天津天沐环保科技有限公司 | A kind of building hoist frequency-conversion control cabinet |
-
2019
- 2019-09-17 CN CN201910874276.5A patent/CN110686142A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0723896U (en) * | 1993-10-02 | 1995-05-02 | 大阪瓦斯株式会社 | Anti-vibration structure of equipment |
| CN1687539A (en) * | 2005-05-25 | 2005-10-26 | 石午江 | Multifunctional Electric Rotary Drilling Rig |
| CN103958923A (en) * | 2011-10-28 | 2014-07-30 | 软轮有限公司 | Wheel with suspension system and centralizing unit with suspension system |
| CN206865625U (en) * | 2017-05-31 | 2018-01-09 | 东莞市华虹电器有限公司 | A kind of television set with adjusting bracket |
| CN107337163A (en) * | 2017-08-23 | 2017-11-10 | 蔡淑娥 | A kind of lifting device of construction |
| CN107956957A (en) * | 2017-12-04 | 2018-04-24 | 李鹏鹏 | A kind of shock-proof machine frame of packing machine |
| CN207587288U (en) * | 2017-12-22 | 2018-07-06 | 上海直真视通科技有限公司 | A kind of conference reservation screen of Zigbee equipment control |
| CN108050201A (en) * | 2017-12-29 | 2018-05-18 | 徐州赛恩斯源新材料科技有限公司 | A kind of holographic laser film produces and processes platform damping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253737A (en) * | 2020-10-15 | 2021-01-22 | 陇东学院 | A quick mounting structure for gear reducer |
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| PB01 | Publication | ||
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Application publication date: 20200114 |