CN114777736A - Dynamic compaction monitoring angle device - Google Patents
Dynamic compaction monitoring angle device Download PDFInfo
- Publication number
- CN114777736A CN114777736A CN202210371429.6A CN202210371429A CN114777736A CN 114777736 A CN114777736 A CN 114777736A CN 202210371429 A CN202210371429 A CN 202210371429A CN 114777736 A CN114777736 A CN 114777736A
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- Prior art keywords
- magnet
- fixed hook
- device body
- dynamic compaction
- monitoring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 238000005056 compaction Methods 0.000 title claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000003245 working effect Effects 0.000 abstract description 4
- 239000004575 stone Substances 0.000 description 8
- 239000008187 granular material Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- RRLHMJHRFMHVNM-BQVXCWBNSA-N [(2s,3r,6r)-6-[5-[5-hydroxy-3-(4-hydroxyphenyl)-4-oxochromen-7-yl]oxypentoxy]-2-methyl-3,6-dihydro-2h-pyran-3-yl] acetate Chemical compound C1=C[C@@H](OC(C)=O)[C@H](C)O[C@H]1OCCCCCOC1=CC(O)=C2C(=O)C(C=3C=CC(O)=CC=3)=COC2=C1 RRLHMJHRFMHVNM-BQVXCWBNSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C1/00—Measuring angles
Abstract
The invention belongs to the technical field of foundation treatment, and particularly relates to a dynamic compaction monitoring angle device, which comprises: the device body and the extension frame of setting at device body top, device body top is provided with the mount, mount top and extension frame top are provided with the lifting rope jointly, one side that the mount was kept away from to the lifting rope is provided with the fixed hook, the fixed hook lower half is provided with the rammer, a plurality of exhaust hole has been seted up at the rammer top, fixed hook one side is provided with the diaphragm, the diaphragm bottom is provided with the riser, be provided with the monitoring subassembly between riser and the fixed hook, the levelness when monitoring subassembly monitoring rammer is located the fixed hook lower half. The dynamic compaction monitoring angle device is convenient for users to adjust in time, and improves the working effect of the dynamic compaction device.
Description
Technical Field
The invention belongs to the technical field of foundation treatment, and particularly relates to a dynamic compaction monitoring angle device.
Background
The working principle of the dynamic compactor is that a hoisting device is utilized to lift 8-30 tons of rammers to 6-30 meters of height, then the rammers fall freely, large impact energy is applied to a foundation, and large shock waves are generated in soil to overcome various resistances among soil particles and compact the foundation, so that the strength of the foundation is improved, the settlement is reduced, the collapsibility and the expansibility are eliminated, the liquefaction resistance of the foundation is improved, the bearing capacity and the compression modulus of the foundation are improved rapidly, and a uniform and compact foundation is formed.
However, in actual work progress, the ram often takes place crooked when descending, leads to the focus out of plumb ground, can not flat ground tamp the ground, and the levelness of present ram often needs artifical the observation, and not only observation error is great, is difficult to in time adjust moreover.
Disclosure of Invention
The invention aims to provide a dynamic compaction monitoring angle device, which aims to solve the technical problems that the levelness of a rammer is always observed manually, the observation error is large, and timely adjustment is difficult, and achieve the purpose of automatically monitoring and improving the working effect of a dynamic compaction device.
In order to solve the technical problem, the invention provides a dynamic compaction monitoring angle which comprises a device body and an extension frame arranged at the top of the device body, wherein a fixed frame is arranged at the top of the device body, a lifting rope is jointly arranged at the top of the fixed frame and the top of the extension frame, a fixed hook is arranged on one side, away from the fixed frame, of the lifting rope, a rammer is arranged on the lower half portion of the fixed hook, a plurality of exhaust holes are formed in the top of the rammer, a transverse plate is arranged on one side of the fixed hook, a vertical plate is arranged at the bottom of the transverse plate, a monitoring component is arranged between the vertical plate and the fixed hook, and the monitoring component monitors the levelness of the rammer when the rammer is located on the lower half portion of the fixed hook.
Through the technical scheme, the monitoring group price can monitor the levelness of the rammer when the rammer is positioned at the lower half part of the fixing hook through the matching of the fixing hook, the rammer and the monitoring assembly, so that the dynamic compaction device is convenient for users to adjust in time, and the working effect of the dynamic compaction device is improved.
Furthermore, the monitoring assembly comprises two limiting grooves, the two limiting grooves are respectively formed in one side, close to the fixing hook, of the vertical plate and one side, close to the vertical plate, of the fixing hook, limiting blocks are connected in the limiting grooves in a sliding mode, a first spring is arranged between the top wall of each limiting groove and the corresponding limiting block, a horizontal sensor is arranged between the two limiting blocks, a first magnet is arranged at the bottom of the horizontal sensor, a second magnet is arranged at the top of the rammer, and the first magnet and the second magnet are arranged in a magnetic opposite mode;
when the rammer is positioned at the lower half part of the fixed hook, the first magnet is attached to the second magnet, and the first spring is in an extended state.
Furthermore, all be provided with a plurality of baffle on the relative two inner walls in exhaust hole, a plurality of the baffle is close to corresponding one side at exhaust hole center is the slope and sets up downwards.
Further, extension frame one side is provided with the arc pole, device body top is provided with a curved cylinder, arc pole portion sliding connection in the curved cylinder, the curved cylinder with the arc pole outer peripheral face is provided with the second spring jointly.
Furthermore, a connecting rod is arranged on one side, close to the fixed hook, of the device body, and a shielding plate is arranged at one end, far away from the device body, of the connecting rod.
Furthermore, one side of the fixing hook, which is far away from the horizontal sensor, is provided with a balancing weight.
The beneficial effects of the invention are:
1. through the cooperation of fixed hook, rammer, level sensor, first magnet, second magnet and first spring, when making the rammer be located the fixed hook lower half, first magnet and second magnet are laminated mutually, drive the level sensor motion to the position parallel with the rammer to improve the degree of accuracy of levelness monitoring, made things convenient for the user of service in time to adjust, thereby improved dynamic compaction device's working effect.
2. Through being close to the correspondence one side at exhaust hole center is the baffle that the slope set up downwards, when making rammer and ground hammering, the baffle that sound was in through the exhaust hole is weakened by a wide margin, has reduced the noise, has hindered the stone granule simultaneously and has passed through the exhaust hole, prevents that the stone granule from splashing the eminence, causes the injury to operating personnel near.
3. Through above-mentioned technical scheme, through the cooperation of arc pole, an arc section of thick bamboo and second spring, make the ram whereabouts in the twinkling of an eye, the motion of extension frame under the inertial action is weakened and offset by the restoring force of second spring, has reduced the movement distance of extension frame greatly, has reduced the injury that the extension frame led to the fact the device body, has improved the life of this structure.
4. Through above-mentioned technical scheme, through the setting of sunshade, when making the ram collide with ground, the stone that splashes can strike on the sunshade, and can not direct striking on the device body, has improved the life of device body, has also protected driver's safety.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the invention at A in FIG. 1;
figure 3 is a schematic view of the structure of the ram and second magnet of the present invention.
In the figure:
1. a device body; 2. an extension frame; 3. a fixed mount; 4. a fixed hook; 5. a rammer; 6. an exhaust hole; 7. a transverse plate; 8. a vertical plate;
9. a monitoring component; 91. a limiting groove; 92. a limiting block; 93. a first spring; 94. a level sensor; 95. a first magnet; 96. a second magnet;
10. a baffle plate; 11. an arcuate bar; 12. an arc-shaped cylinder; 13. a second spring; 14. a connecting rod; 15. a shutter; 16. and a balancing weight.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.
The embodiment is as follows:
as shown in fig. 1 to 3, a dynamic compaction monitoring angle comprises a device body 1 and an extension frame 2 arranged at the top of the device body 1. 2 one sides of extension frame are provided with arc pole 11, and 1 top of device body is provided with arc section of thick bamboo 12, and arc pole 11 is partial sliding connection all the time in arc section of thick bamboo 12, and arc section of thick bamboo 12 is provided with second spring 13 with 11 outer peripheral faces of arc pole jointly, and when extension frame 2 moved to operating position, second spring 13 was in compression state. Wherein, extension frame 2 can move under the inertia effect after the work, and the restoring force of second spring 13 weakens the motion range of extension frame 2 greatly, has reduced the movement distance of extension frame 2, has reduced the injury that extension frame 2 caused to device body 1.
As shown in fig. 1 and fig. 2, a fixing frame 3 is arranged at the top of the device body 1, a lifting rope is arranged at the top of the fixing frame 3 and the top of the extension frame 2, and a fixing hook 4 is arranged at one side of the lifting rope far away from the fixing frame 3. The lower half part of the fixed hook 4 is provided with a rammer 5, and the top of the rammer 5 is provided with a plurality of exhaust holes 6.
In this embodiment, a plurality of baffles 10 are disposed on two opposite inner walls of the exhaust hole 6, and one sides of the baffles 10, which are close to the center of the corresponding exhaust hole 6, are both inclined and downward. When baffle 10 made rammer 5 and ground hammering, sound obtained weakening by a wide margin through baffle 10 in exhaust hole 6, reduced the noise, obstructed the stone granule simultaneously and passed through exhaust hole 6, prevented that the stone granule from splashing the eminence, caused the injury to near operating personnel.
As shown in fig. 1 and 2, a connecting rod 14 is provided on the side of the apparatus body 1 close to the fixed hook 4, and a shutter 15 is provided on the end of the connecting rod 14 away from the apparatus body 1. When rammer 5 collides with ground, the stone that splashes can strike on sunshade 15, and can not direct striking on device body 1, has improved device body 1's life, has also protected driver's safety. Wherein, fixed hook 4 one side is provided with diaphragm 7, and diaphragm 7 bottom is provided with riser 8, is provided with monitoring subassembly 9 between riser 8 and the fixed hook 4, and monitoring subassembly 9 monitors the levelness when rammer 5 is located the fixed hook 4 lower half.
As shown in fig. 2, the monitoring component 9 includes two limiting grooves 91, and the two limiting grooves 91 are respectively formed on one side of the vertical plate 8 close to the fixing hook 4 and one side of the fixing hook 4 close to the vertical plate 8. The limiting groove 91 is slidably connected with a limiting block 92, and the limiting block 92 partially extends to the outside of the corresponding limiting groove 91. A first spring 93 is arranged between the top wall of the limiting groove 91 and the corresponding limiting block 92.
Wherein, be provided with horizon sensor 94 between two stopper 92, device body 1 one side is provided with signal receiver, and signal receiver and horizon sensor 94 are electric connection, and horizon sensor 94 transmits the signal of rammer 5 levelness for signal receiver. The bottom of the level sensor 94 is provided with a first magnet 95, the top of the rammer 5 is provided with a second magnet 96, two sides of the first magnet 95 close to the second magnet 96 are opposite in magnetism, the attraction force between the first magnet 95 and the second magnet 96 is greater than the pulling force of the first spring 93, and the attraction force between the first magnet 95 and the second magnet 96 does not affect the levelness of the rammer 5.
When the ram 5 is located on the lower half of the stationary hook 4, the attractive force of the first magnet 95 and the second magnet 96 can elongate the first spring 93, thereby bringing the first magnet 95 into abutment with the second magnet 96.
In the present embodiment, when the rammer 5 is located at the lower half of the fixing hook 4, under the action of the attraction force of the first magnet 95 and the second magnet 96, the first spring 93 extends until the first magnet 95 and the second magnet 96 are attached to each other, the level sensor 94 is parallel to the rammer 5, and the levelness of the level sensor 94 is the levelness of the rammer 5, so that the monitoring accuracy is improved.
As shown in fig. 2, a counterweight 16 is arranged on one side of the fixing hook 4 away from the level sensor 94, and the weight of the counterweight 16 is the sum of the weights of the transverse plate 7, the vertical plate 8, the level sensor 94, the first spring 93, the first magnet 95 and the limiting block 92, so that the fixing hook 4 cannot be inclined in a natural state, and the influence of the self weight of the monitoring component 9 on the levelness of the rammer 5 is eliminated.
In summary, when the rammer 5 is hung on the fixed hook 4, under the action of the attractive force of the first magnet 95 and the second magnet 96, the first spring 93 extends until the first magnet 95 and the second magnet 96 are attached to each other, the level sensor 94 is parallel to the rammer 5, and the levelness of the level sensor 94 is the levelness of the rammer 5, so that the monitoring accuracy of the level sensor 94 is ensured, the level sensor 94 transmits a signal to the signal receiver, and a user can adjust the rammer 5 as soon as possible.
When the rammer 5 falls, the extension frame 2 can move under the action of inertia, and the restoring force of the second spring 13 greatly weakens the movement amplitude of the extension frame 2, so that the movement distance of the extension frame 2 is reduced, and the damage of the extension frame 2 to the device body 1 is reduced.
When rammer 5 and ground hammering, sound is weakened through the baffle 10 in exhaust hole 6 by a wide margin, has reduced the noise, and baffle 10 has hindered the stone granule and has passed through exhaust hole 6, prevents that the stone granule from splashing the eminence, has protected near operating personnel.
All the components selected in the present application are general standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimental methods.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. Dynamic compaction monitoring angle device which characterized in that includes:
comprises a device body (1) and an extension frame (2) arranged at the top of the device body (1);
device body (1) top is provided with mount (3), mount (3) top with extension frame (2) top is provided with the lifting rope jointly, and the lifting rope is kept away from one side of mount (3) is provided with fixed hook (4), fixed hook (4) lower half is provided with ram (5), a plurality of exhaust hole (6), its characterized in that have been seted up at ram (5) top: fixed hook (4) one side is provided with diaphragm (7), diaphragm (7) bottom is provided with riser (8), riser (8) with be provided with between fixed hook (4) monitoring subassembly (9), monitoring subassembly (9) monitoring tamper (5) are located levelness when fixed hook (4) lower half.
2. The dynamic compaction monitoring angle apparatus of claim 1,
the monitoring assembly (9) comprises two limiting grooves (91), the two limiting grooves (91) are respectively arranged on one side, close to the fixing hook (4), of the vertical plate (8) and one side, close to the vertical plate (8), of the fixing hook (4), limiting blocks (92) are connected in the limiting grooves (91) in a sliding mode, first springs (93) are arranged between the inner top wall of each limiting groove (91) and the corresponding limiting block (92), a horizontal sensor (94) is arranged between the two limiting blocks (92), a first magnet (95) is arranged at the bottom of the horizontal sensor (94), a second magnet (96) is arranged at the top of the rammer (5), and the first magnet (95) and the second magnet (96) are arranged in a magnetic opposite mode;
when the ram (5) is located on the lower half of the fixing hook (4), the first magnet (95) and the second magnet (96) are attached, and the first spring (93) is in an extended state.
3. The dynamic compaction monitoring angle apparatus of claim 2,
all be provided with a plurality of baffle (10) on the two relative inner walls in exhaust hole (6), a plurality of baffle (10) are close to and correspond one side at exhaust hole (6) center is the slope and sets up downwards.
4. The dynamic compaction monitoring angle apparatus of claim 3,
an arc-shaped rod (11) is arranged on one side of the extension frame (2), an arc-shaped cylinder (12) is arranged at the top of the device body (1), part of the arc-shaped rod (11) is connected in the arc-shaped cylinder (12) in a sliding mode, and a second spring (13) is arranged on the outer peripheral face of the arc-shaped cylinder (12) and the outer peripheral face of the arc-shaped rod (11) jointly.
5. The dynamic compaction monitoring angle apparatus of claim 4,
one side of the device body (1) close to the fixed hook (4) is provided with a connecting rod (14), and one end, far away from the device body (1), of the connecting rod (14) is provided with a shielding plate (15).
6. The dynamic compaction monitoring angle apparatus of claim 5,
and a counterweight (16) is arranged on one side, far away from the horizontal sensor (94), of the fixed hook (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371429.6A CN114777736B (en) | 2022-04-11 | 2022-04-11 | Dynamic compaction angle monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371429.6A CN114777736B (en) | 2022-04-11 | 2022-04-11 | Dynamic compaction angle monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114777736A true CN114777736A (en) | 2022-07-22 |
| CN114777736B CN114777736B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210371429.6A Active CN114777736B (en) | 2022-04-11 | 2022-04-11 | Dynamic compaction angle monitoring device |
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| CN (1) | CN114777736B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471541A (en) * | 2013-05-07 | 2013-12-25 | 上海交通大学 | Compaction depth measuring apparatus and compaction depth measuring method of dynamic compactor |
| WO2014023062A1 (en) * | 2012-08-07 | 2014-02-13 | Zhang Yun | Method of hanging rammer automatically with hanger guided by rope |
| CN106703003A (en) * | 2017-02-10 | 2017-05-24 | 杭州杭重工程机械有限公司 | Intelligent measurement monitoring system of dynamic compaction machine and control method of intelligent measurement monitoring system |
| CN207062925U (en) * | 2017-06-10 | 2018-03-02 | 中交天航南方交通建设有限公司 | A kind of dynamic compaction machinery hangs tripping gear and dynamic compaction machinery |
| CN210917303U (en) * | 2019-07-16 | 2020-07-03 | 烟台市清泉建筑建材有限公司 | Shallow bay rubble foundation underwater tamping construction pit bottom leveling device |
| CN211498813U (en) * | 2020-01-06 | 2020-09-15 | 泰安大地强夯重工科技有限公司 | Dynamic compactor detacher |
| CN113322925A (en) * | 2021-05-17 | 2021-08-31 | 浙江华东工程建设管理有限公司 | Dynamic compaction construction quality monitoring device and method |
| CN215210964U (en) * | 2021-03-15 | 2021-12-17 | 陕西建工基础建设集团有限公司 | Multipurpose dynamic compaction machine |
-
2022
- 2022-04-11 CN CN202210371429.6A patent/CN114777736B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014023062A1 (en) * | 2012-08-07 | 2014-02-13 | Zhang Yun | Method of hanging rammer automatically with hanger guided by rope |
| CN103471541A (en) * | 2013-05-07 | 2013-12-25 | 上海交通大学 | Compaction depth measuring apparatus and compaction depth measuring method of dynamic compactor |
| CN106703003A (en) * | 2017-02-10 | 2017-05-24 | 杭州杭重工程机械有限公司 | Intelligent measurement monitoring system of dynamic compaction machine and control method of intelligent measurement monitoring system |
| CN207062925U (en) * | 2017-06-10 | 2018-03-02 | 中交天航南方交通建设有限公司 | A kind of dynamic compaction machinery hangs tripping gear and dynamic compaction machinery |
| CN210917303U (en) * | 2019-07-16 | 2020-07-03 | 烟台市清泉建筑建材有限公司 | Shallow bay rubble foundation underwater tamping construction pit bottom leveling device |
| CN211498813U (en) * | 2020-01-06 | 2020-09-15 | 泰安大地强夯重工科技有限公司 | Dynamic compactor detacher |
| CN215210964U (en) * | 2021-03-15 | 2021-12-17 | 陕西建工基础建设集团有限公司 | Multipurpose dynamic compaction machine |
| CN113322925A (en) * | 2021-05-17 | 2021-08-31 | 浙江华东工程建设管理有限公司 | Dynamic compaction construction quality monitoring device and method |
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| CN114777736B (en) | 2024-02-06 |
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