CN111733790A - A ramming device for construction - Google Patents
A ramming device for construction Download PDFInfo
- Publication number
- CN111733790A CN111733790A CN202010637027.7A CN202010637027A CN111733790A CN 111733790 A CN111733790 A CN 111733790A CN 202010637027 A CN202010637027 A CN 202010637027A CN 111733790 A CN111733790 A CN 111733790A
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- China
- Prior art keywords
- fixedly connected
- mounting
- installation
- bearing box
- box
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
Abstract
The invention discloses a tamping device for building construction, which relates to the technical field of building construction and comprises a bottom plate, wherein a mounting box is fixedly connected on the bottom plate, an elastic telescopic rod is fixedly connected on the top wall in the mounting box, a buffer spring is sleeved on the elastic telescopic rod, the bottom of the elastic telescopic rod is fixedly connected with a first mounting plate, mounting rods are fixedly connected on two sides of the first mounting plate, a rack is fixedly connected on one side of the mounting rod in the mounting box, a mounting frame is fixedly connected on the inner side wall of the mounting box on one side of the rack, an incomplete gear is rotatably connected on the mounting frame and is in meshing transmission connection with the rack, a motor is fixedly connected on the side wall of the mounting box above the mounting frame, an output shaft of the motor is in transmission connection with the incomplete gear through a transmission chain, a second mounting plate is fixedly connected between the mounting rods below, the bearing box is arranged at the bottom of the connecting rod, so that the device is high in ramming efficiency, convenient to adjust and high in practicability.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a tamping device for building construction.
Background
In the building industry, the stability of ground is a main control index, and among the prior art, firm ground generally adopts road roller compaction or pre-compaction, subsides to realize the stability of ground, but firm effect is always unsatisfactory, and the ground still constantly appears warping, has very big potential safety hazard, and especially to high-rise building, the ground warp can directly influence the overall stability of high-rise building, to high fill ground and bad geology, generally adopts the dynamic compaction to handle, and the time-consuming and labor-consuming inefficiency.
At present, the ramming equipment structure that the building trade used more often is complicated and bulky, the operation is complicated, very big inconvenient user uses, because the volume is great, lead to wasting a large amount of time when using promptly, and the weight of ramming the piece can not be adjusted according to the in-service use condition is nimble to general ramming device, the practicality is lower, some portable devices are when removing simultaneously, can not be very steady fix the device, make the final working quality of device not high, the efficiency of work has also been reduced simultaneously, the time of work has been increased, economic cost is improved, normal time limit for a project has been delayed.
Disclosure of Invention
The invention provides a tamping device for building construction, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a tamping device for building construction comprises a bottom plate, wherein a mounting box is fixedly connected on the bottom plate, an elastic telescopic rod is fixedly connected with the top wall in the mounting box, a buffer spring is sleeved on the elastic telescopic rod, the bottom of the elastic telescopic rod is fixedly connected with a first mounting plate, mounting rods are fixedly connected with two sides of the first mounting plate, the upper ends of the mounting rods penetrate through the top wall of the mounting box and extend to the upper part of the mounting box, the mounting rods are in sliding connection with the top wall of the mounting box, a rack is fixedly connected with one side of the mounting rods in the mounting box, a mounting frame is fixedly connected with the inner side wall of the mounting box on one side of the rack, an incomplete gear is rotatably connected on the mounting frame, the incomplete gear is in meshing transmission connection with the rack, a motor is fixedly connected on the side wall of the mounting box above the mounting frame, an output shaft of the motor, the bottom of the second mounting plate is fixedly connected with a connecting rod, and a bearing box is arranged at the bottom of the connecting rod.
According to a preferred technical scheme, the two sides in the bearing box are fixedly connected with positioning plates, the side walls of the positioning plates and the bearing box are respectively provided with a placing hole, the top in the bearing box between the positioning plates is fixedly connected with an electric telescopic rod, the bottom of the electric telescopic rod is fixedly connected with an elastic telescopic column, a plurality of balancing weights are arranged in the bearing box below the elastic telescopic column, and a plurality of balancing weights are arranged in the installation boxes at the two sides of the bearing box.
According to a preferable technical scheme of the invention, a baffle is arranged in the bearing box between the positioning plate and the bearing box, the top of the baffle is fixedly connected with a T-shaped connecting column, a through groove is formed in the top of the bearing box above the baffle, the upper end of the T-shaped connecting column penetrates through the through groove and extends to the upper part of the bearing box, positioning bolts are in threaded connection with two sides of the T-shaped connecting column, and the lower ends of the positioning bolts extend into the bearing box and are in threaded connection with the top wall of the bearing box.
As a preferred technical scheme of the invention, the bottom plate is provided with a through hole, the lower end of the bearing box penetrates through the through hole and extends to the lower part of the bottom plate, and the bottom of the bearing box is fixedly connected with the tamping pressing plate.
As a preferred technical scheme of the invention, the bottoms of the bottom plates on two sides of the tamping pressing plate are fixedly connected with mounting columns, the mounting columns are rotatably connected with supporting columns, one ends of the supporting columns are rotatably connected with pulleys, and one ends of the supporting columns, far away from the pulleys, are fixedly connected with transmission rods.
As a preferred technical scheme of the invention, the bottom of the bottom plate on one side of the mounting column is fixedly connected with a hydraulic telescopic column, the bottom of the hydraulic telescopic column is fixedly connected with a mounting shell, the upper end of the outer part of the mounting shell is fixedly connected with a mounting shaft, and one end of the transmission rod is in sliding connection with the mounting shaft.
As a preferred technical scheme of the invention, the damping spring is fixedly connected in the mounting cylinder, the piston rod is fixedly connected in the mounting cylinder at the bottom of the damping spring, and the bottom of the piston rod is fixedly connected with the backing plate.
The invention has the following advantages: by arranging the bearing box in the installation box, a user can adjust the number of the balancing weights in the bearing box according to the actual tamping working condition, thereby achieving the effect of adjusting the tamping weight, being capable of flexibly adjusting under the conditions of different construction requirements, compared with certain tamping devices with fixed weight, the practicability is higher, the flexibility is better, the hydraulic telescopic column is arranged at the bottom of the bottom plate, the device can move freely under the matching action of the transmission rod and the support column, meanwhile, the positioning can be carried out at any time, the working efficiency and the working quality of the tamping construction are improved, and simultaneously, the damping spring and the backing plate are arranged in the mounting cylinder, can play shock attenuation and balanced effect for the device can keep the level at unevenness's position fuselage body, carries out the level to ground and tamps, guarantees the effect of tamping of device.
Drawings
FIG. 1 is a schematic structural diagram of a main body of a tamping device for building construction.
Fig. 2 is a schematic structural diagram of a in fig. 1.
Fig. 3 is a schematic view of a floor structure in a ramming device for construction.
In the figure: 1. a base plate; 2. installing a box; 3. mounting a column; 4. a transmission rod; 5. mounting the cylinder; 6. a damping spring; 7. a piston rod; 8. tamping a pressing plate; 9. a carrying case; 10. a balancing weight; 11. an elastic telescopic column; 12. positioning a plate; 13. a hydraulic telescopic column; 14. installing a shaft; 15. a support pillar; 16. a pulley; 17. an electric telescopic rod; 18. a connecting rod; 19. a second mounting plate; 20. mounting a rod; 21. a first mounting plate; 22. a motor; 23. an elastic telescopic rod; 24. a buffer spring; 25. a rack; 26. an incomplete gear; 27. a mounting frame; 28. a baffle plate; 29. a T-shaped connecting column; 30. placing holes; 31. a through groove; 32. positioning the bolt; 33. a base plate; 34. and a through hole.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
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 in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-3, a tamping device for building construction comprises a bottom plate 1, a mounting box 2 is fixedly connected to the bottom plate 1, an elastic telescopic rod 23 is fixedly connected to the inner top wall of the mounting box 2, a buffer spring 24 is sleeved on the elastic telescopic rod 23, a first mounting plate 21 is fixedly connected to the bottom of the elastic telescopic rod 23, mounting rods 20 are fixedly connected to two sides of the first mounting plate 21, the upper end of each mounting rod 20 penetrates through the top wall of the mounting box 2 and extends to the upper side of the mounting box 2, the mounting rods 20 are slidably connected with the top wall of the mounting box 2, a rack 25 is fixedly connected to one side of each mounting rod 20 in the mounting box 2, a mounting frame 27 is fixedly connected to the inner side wall of the mounting box 2 on one side of the rack 25, an incomplete gear 26 is rotatably connected to the mounting frame 27, the incomplete gear 26 is engaged with the rack 25 in a transmission manner, the output shaft of the motor 22 is in transmission connection with the incomplete gear 26 through a transmission chain, the mounting rods 20 below the first mounting plate 21 are fixedly connected with the second mounting plate 19, the bottom of the second mounting plate 19 is fixedly connected with the connecting rod 18, and the bottom of the connecting rod 18 is provided with the bearing box 9.
The inner two sides of the bearing box 9 are fixedly connected with positioning plates 12, the side walls of the positioning plates 12 and the bearing box 9 are respectively provided with a placing hole 30, the top part of the inner part of the bearing box 9 between the positioning plates 12 is fixedly connected with an electric telescopic rod 17, the bottom part of the electric telescopic rod 17 is fixedly connected with an elastic telescopic column 11, a plurality of balancing weights 10 are arranged in the bearing box 9 below the elastic telescopic column 11, a plurality of balancing weights 10 are arranged in the inner parts of the installation boxes 2 at the two sides of the bearing box 9, a baffle 28 is arranged in the bearing box 9 between the positioning plates 12 and the bearing box 9, the top part of the baffle 28 is fixedly connected with a T-shaped connecting column 29, the top part of the bearing box 9 above the baffle 28 is provided with a through groove 31, the upper end of the T-shaped connecting column 29 passes through the through groove 31 and extends to, and is in threaded connection with the top wall of the bearing box 9.
Set up through-hole 34 on the bottom plate 1, the through-hole 34 is passed to the bearing box 9 lower extreme, extends to the bottom plate 1 below, and bottom fixed connection tamps clamp plate 8, 1 bottom fixed connection erection column 9 of bottom plate of tamp clamp plate 8 both sides rotates joint support post 15 on the erection column 9, and pulley 16 is connected in the rotation of support post 15 one end, pulley 16 one end fixed connection transfer line 4 is kept away from to support post 15, 1 bottom fixed connection hydraulic telescoping column 13 of bottom plate of erection column 9 one side, hydraulic telescoping column 13 bottom fixed connection mounting shell, the outside upper end fixed connection installation axle 14 of mounting shell, 4 one end of transfer line and installation axle 14 sliding connection.
Example 2
Referring to fig. 1-3, the other contents of the present embodiment are the same as embodiment 1, except that: damping spring 6 is fixedly connected in the installation cylinder 5, a piston rod 7 is fixedly connected in the installation cylinder 5 at the bottom of the damping spring 6, and a backing plate 33 is fixedly connected at the bottom of the piston rod 7.
In the implementation process of the invention, the device is moved to a position to be tamped under the supporting action of the pulley 16, the hydraulic telescopic column 13 is adjusted to drive the mounting cylinder 5 to move downwards, the transmission rod 4 rotates to drive the support column 15 to rotate, the pulley 16 leaves the ground, the backing plate 33 below the mounting cylinder 5 supports, the baffle 28 is pulled out from the through groove 31 according to the actual working requirement, the counterweight 10 is placed in the bearing box 9, the baffle 28 is fixed through the positioning bolt 32, the motor 22 is started to drive the incomplete gear 26 to rotate, and further the mounting rod 20 is driven to move upwards, after the incomplete gear 26 is separated from the mounting rod 20, the bearing box 9 falls under the action of the self gravity to tamp the ground, and the tamping operation is repeatedly performed under the action of the incomplete gear 26, the device has the advantages of reasonable structural principle design, convenient operation and use, high tamping efficiency and convenient adjustment, the practicability is strong.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The tamping device for building construction comprises a bottom plate (1) and is characterized in that the bottom plate (1) is fixedly connected with an installation box (2), an inner top wall of the installation box (2) is fixedly connected with an elastic telescopic rod (23), the elastic telescopic rod (23) is sleeved with a buffer spring (24), the bottom of the elastic telescopic rod (23) is fixedly connected with a first installation plate (21), installation rods (20) are fixedly connected with two sides of the first installation plate (21), the upper end of each installation rod (20) penetrates through the top wall of the installation box (2) and extends to the upper side of the installation box (2), the installation rods (20) are in sliding connection with the top wall of the installation box (2), one side of each installation rod (20) in the installation box (2) is fixedly connected with a rack (25), an inner side wall of the installation box (2) on one side of the rack (25) is fixedly connected with an installation frame (27), and the installation frame (27, incomplete gear (26) is connected with rack (25) meshing transmission, fixed connection motor (22) on installing bin (2) lateral wall of installing bracket (27) top, be connected through the drive chain transmission between the output shaft of motor (22) and incomplete gear (26), fixed connection second mounting panel (19) between installation pole (20) of first mounting panel (21) below, second mounting panel (19) bottom fixed connection connecting rod (18), connecting rod (18) bottom bearing box (9).
2. The compaction device for building construction according to claim 1, wherein positioning plates (12) are fixedly connected to two sides in the bearing box (9), placing holes (30) are formed in the side walls of the positioning plates (12) and the bearing box (9), an electric telescopic rod (17) is fixedly connected to the top in the bearing box (9) between the positioning plates (12), an elastic telescopic column (11) is fixedly connected to the bottom of the electric telescopic rod (17), a plurality of balancing weights (10) are arranged in the bearing box (9) below the elastic telescopic column (11), and a plurality of balancing weights (10) are arranged in the installation boxes (2) on two sides of the bearing box (9).
3. The compaction device for building construction according to claim 2, wherein a baffle plate (28) is arranged in the bearing box (9) between the positioning plate (12) and the bearing box (9), the top of the baffle plate (28) is fixedly connected with a T-shaped connecting column (29), a through groove (31) is formed in the top of the bearing box (9) above the baffle plate (28), the upper end of the T-shaped connecting column (29) penetrates through the through groove (31) and extends to the upper side of the bearing box (9), two sides of the T-shaped connecting column (29) are in threaded connection with positioning bolts (32), and the lower end of each positioning bolt (32) extends into the bearing box (9) and is in threaded connection with the top wall of the bearing box (9).
4. The compaction device for building construction according to claim 2 or 3, wherein the bottom plate (1) is provided with a through hole (34), the lower end of the bearing box (9) passes through the through hole (34) and extends to the lower part of the bottom plate (1), and the bottom is fixedly connected with the compaction pressure plate (8).
5. The compaction device for building construction according to claim 4, wherein the bottom of the bottom plate (1) at both sides of the compaction pressure plate (8) is fixedly connected with a mounting column (9), a support column (15) is rotatably connected on the mounting column (9), one end of the support column (15) is rotatably connected with a pulley (16), and one end of the support column (15) far away from the pulley (16) is fixedly connected with the transmission rod (4).
6. The compaction device for building construction according to claim 5, wherein a hydraulic telescopic column (13) is fixedly connected to the bottom of the bottom plate (1) on one side of the mounting column (9), a mounting shell is fixedly connected to the bottom of the hydraulic telescopic column (13), a mounting shaft (14) is fixedly connected to the upper end of the outer part of the mounting shell, and one end of the transmission rod (4) is slidably connected with the mounting shaft (14).
7. The compaction device for building construction according to claim 6, wherein the damping spring (6) is fixedly connected in the mounting cylinder (5), the piston rod (7) is fixedly connected in the mounting cylinder (5) at the bottom of the damping spring (6), and the backing plate (33) is fixedly connected at the bottom of the piston rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010637027.7A CN111733790B (en) | 2020-07-03 | 2020-07-03 | A ramming device for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010637027.7A CN111733790B (en) | 2020-07-03 | 2020-07-03 | A ramming device for construction |
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| Publication Number | Publication Date |
|---|---|
| CN111733790A true CN111733790A (en) | 2020-10-02 |
| CN111733790B CN111733790B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010637027.7A Active CN111733790B (en) | 2020-07-03 | 2020-07-03 | A ramming device for construction |
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| CN (1) | CN111733790B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096350A (en) * | 2020-10-16 | 2020-12-18 | 河南中原总机泵业有限公司 | Pumping unit driving device |
| CN112482350A (en) * | 2020-10-28 | 2021-03-12 | 国网山东省电力公司菏泽市定陶区供电公司 | Tamping device for electric power construction |
| CN112726606A (en) * | 2021-02-01 | 2021-04-30 | 朱燕红 | Oil exploration pile driver with protective structure |
| CN113235559A (en) * | 2021-06-26 | 2021-08-10 | 陈宝玲 | A toad rammer is used in municipal hydraulic engineering building site for ground flattening operation |
| CN113322924A (en) * | 2021-05-11 | 2021-08-31 | 浙江解放装饰工程有限公司 | Ramming device for building construction |
| CN113638395A (en) * | 2021-10-13 | 2021-11-12 | 南通盛宏机械有限公司 | Foundation tamping device for garden construction |
| CN114518297A (en) * | 2022-01-19 | 2022-05-20 | 湘潭大学 | Highway subgrade large-grained stone tamping test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2348519C1 (en) * | 2007-06-13 | 2009-03-10 | Государственное образовательное учреждение высшего профессионального образования "Братский государственный университет" | Installation for concrete mix floating with working unit equipped with integrated rollers |
| CN207211122U (en) * | 2017-07-12 | 2018-04-10 | 浙江迪野农业装备有限公司 | A kind of construction land used face press |
| CN108611952A (en) * | 2018-04-03 | 2018-10-02 | 郭志颖 | A kind of Construction of Civil Engineering road surface tamping unit driven based on disk |
| CN210288335U (en) * | 2019-03-05 | 2020-04-10 | 四川职业技术学院 | Rammer compactor is used in road construction |
| CN210797522U (en) * | 2019-06-04 | 2020-06-19 | 崔冠科 | Building engineering foundation reinforcing apparatus |
-
2020
- 2020-07-03 CN CN202010637027.7A patent/CN111733790B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2348519C1 (en) * | 2007-06-13 | 2009-03-10 | Государственное образовательное учреждение высшего профессионального образования "Братский государственный университет" | Installation for concrete mix floating with working unit equipped with integrated rollers |
| CN207211122U (en) * | 2017-07-12 | 2018-04-10 | 浙江迪野农业装备有限公司 | A kind of construction land used face press |
| CN108611952A (en) * | 2018-04-03 | 2018-10-02 | 郭志颖 | A kind of Construction of Civil Engineering road surface tamping unit driven based on disk |
| CN210288335U (en) * | 2019-03-05 | 2020-04-10 | 四川职业技术学院 | Rammer compactor is used in road construction |
| CN210797522U (en) * | 2019-06-04 | 2020-06-19 | 崔冠科 | Building engineering foundation reinforcing apparatus |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096350A (en) * | 2020-10-16 | 2020-12-18 | 河南中原总机泵业有限公司 | Pumping unit driving device |
| CN112482350A (en) * | 2020-10-28 | 2021-03-12 | 国网山东省电力公司菏泽市定陶区供电公司 | Tamping device for electric power construction |
| CN112482350B (en) * | 2020-10-28 | 2022-01-21 | 国网山东省电力公司菏泽市定陶区供电公司 | Tamping device for electric power construction |
| CN112726606A (en) * | 2021-02-01 | 2021-04-30 | 朱燕红 | Oil exploration pile driver with protective structure |
| CN113322924A (en) * | 2021-05-11 | 2021-08-31 | 浙江解放装饰工程有限公司 | Ramming device for building construction |
| CN113235559A (en) * | 2021-06-26 | 2021-08-10 | 陈宝玲 | A toad rammer is used in municipal hydraulic engineering building site for ground flattening operation |
| CN113235559B (en) * | 2021-06-26 | 2023-09-29 | 陈宝玲 | A toad rams for municipal water conservancy project building site of ground flattening operation |
| CN113638395A (en) * | 2021-10-13 | 2021-11-12 | 南通盛宏机械有限公司 | Foundation tamping device for garden construction |
| CN113638395B (en) * | 2021-10-13 | 2021-12-10 | 南通盛宏机械有限公司 | Foundation tamping device for garden construction |
| CN114518297A (en) * | 2022-01-19 | 2022-05-20 | 湘潭大学 | Highway subgrade large-grained stone tamping test device |
| CN114518297B (en) * | 2022-01-19 | 2023-09-15 | 湘潭大学 | Highway subgrade large-grain stone ramming test device |
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| CN111733790B (en) | 2022-04-19 |
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