CN106522197A - Tamping equipment for building construction - Google Patents
Tamping equipment for building construction Download PDFInfo
- Publication number
- CN106522197A CN106522197A CN201611249039.2A CN201611249039A CN106522197A CN 106522197 A CN106522197 A CN 106522197A CN 201611249039 A CN201611249039 A CN 201611249039A CN 106522197 A CN106522197 A CN 106522197A
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- CN
- China
- Prior art keywords
- fixedly connected
- bar
- support
- connection ring
- montant
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides tamping equipment for building construction. The tamping equipment comprises a bottom plate, a support device, a fixing device, a motor device, a lever device, a positioning device and a tamping device. The bottom plate comprises first supporting blocks and first rolling wheels. The support device comprises a first supporting bar, a first diagonal bar, a first cross bar, a first vertical bar and a second cross bar. The fixing device comprises a first support, a second diagonal bar and a first bent bar. The motor device comprises a motor, a second support, an output shaft, a first fixing bar and a first pull cord. The lever device comprises a second supporting bar, a first fixed block, a lever, a first connecting ring and a second connecting ring. The positioning device comprises a second vertical bar, a first positioning bar, second rolling wheels and a third cross bar. The tamping device comprises a second pull cord, a tamping frame, a third connecting rig, a balancing weight and second fixing bars. The tamping equipment for building construction can quickly and effectively tamp bar pits and is high in tamping efficiency and good in tamping effect.
Description
Technical field
The present invention relates to building machinery technical field, more particularly, to a kind of tamping apparatus of construction.
Background technology
In power construction, need to tamp bar hole, establish to ensure that electric pole is firm.It is existing to bar pit tamper
Real method is mainly by artificial and mechanical method, hand compaction high labor intensive, and wastes time and energy, although machinery compacting effect
Rate is high, but volume is larger, using dumb, uses inconvenience.
Therefore, it is necessary to provide a kind of new technical scheme to overcome drawbacks described above.
The content of the invention
It is an object of the invention to provide it is a kind of can effectively solving above-mentioned technical problem construction tamping apparatus.
To reach the purpose of the present invention, adopt the following technical scheme that：
A kind of tamping apparatus of construction, the tamping apparatus of the construction includes base plate, positioned at the bottom
Holder device above plate, the fixing device on the left of the holder device, the motor dress above the holder device
Put, the leverage above the fixing device, the positioner on the left of the fixing device and be arranged at described
Tamping unit below leverage, the base plate includes being disposed below the first support block of the left and right sides, positioned at described
The first roller below one support block, the holder device include first support bar, on the right side of the first support bar
One brace, the first cross bar on the left of the first support bar, the first montant below first cross bar, positioned at institute
State the second cross bar above first support bar, the fixing device include first support, be arranged in the first support
Two braces, the first bent stick above second brace, the electric machine includes motor, on the right side of the motor
Second support, the output shaft being arranged on the motor, the first fix bar on the left of the motor, be arranged at it is described defeated
The first bracing wire on shaft, the leverage include second support bar, the first fixation above the second support bar
Block, the lever above first fixed block, the first connection ring on the right side of first fixed block, positioned at described
The second connection ring on the left of one fixed block, the positioner include the second montant, on the left of second montant first
Locating rod, the second roller being arranged in first locating rod, the 3rd cross bar on the right side of second montant, the rammer
Actual load is put including the second bracing wire, the compacting frame below second bracing wire, the 3rd connection above the compacting frame
Ring, the balancing weight and the second fix bar positioned at the left and right sides above the balancing weight that are contained in the compacting inframe.
The upper surface of first support block is fixedly connected with the lower surface of the base plate, the following table of first support block
Face is provided with the first groove, and first roller is in cylinder, first roller be contained in first groove and with it is described
First support block is pivotally connected.
The first support bar is in cuboid and vertically places, and the lower end of the first support bar is fixed with the base plate and connected
Connect, the upper end of the first support bar is fixedly connected with second cross bar, first brace is oblique, and described first is oblique
The lower end of bar is fixedly connected with the base plate, and the upper end of first brace is fixedly connected with the first support bar, and described
One cross bar is in cuboid and horizontal positioned, and the right-hand member of first cross bar is fixedly connected with the first support bar, and described first
Montant is in cuboid and vertically places, and the lower end of first montant is fixedly connected with the base plate, first montant it is upper
End is fixedly connected with first cross bar.
The first support is L-shaped, and the lower end of the first support is fixedly connected with the base plate, the first support
Upper end is horizontal, and the left end of first cross bar and the second cross bar is fixedly connected with the first support, second brace
Obliquely, the lower end of second brace is fixedly connected with the base plate, the upper end of second brace with described first
Frame is fixedly connected, and first bent stick is in bending, and the two ends of first bent stick are fixedly connected with the first support.
The lower surface of the motor is fixedly connected with the upper surface of second cross bar, and the second support is in concave shape,
The lower end of the second support is fixedly connected with the right-hand member of second cross bar, the upper end of the second support and the motor
Right surface is fixedly connected, and the output shaft is in cylinder, one end of the output shaft and the motor connection, and described first fixes
Bar is in cuboid and horizontal positioned, and the right-hand member of first fix bar is fixedly connected with the motor, first fix bar
Left end is fixedly connected with the first support, and the lower end of first bracing wire is fixedly connected with the output shaft.
The second support bar is in cuboid and vertical placement, the lower end of the second support bar and the first support
Upper surface is fixedly connected, and the upper end of the second support bar is provided with the second groove, the first fixed block length cube, and described first
Fixed block is contained in second groove and pivotally connected with the second support bar, the upper surface of first fixed block with
The lower surface of lever is fixedly connected, the lever be in cuboid, first connection ring be in semi-annular shape, first connection ring
Two ends be fixedly connected with the lower surface of the lever, the upper end of first bracing wire is fixedly connected with first connection ring,
Second connection ring is in semi-annular shape, and the two ends of second connection ring are fixedly connected with the lower surface of the lever.
Second montant is in cuboid and vertically places, the right table of the upper end of the first support and second montant
Face is fixedly connected, and the 3rd cross bar is in cuboid and horizontal positioned, and the left end of the 3rd cross bar is with second montant admittedly
Fixed to connect, the right-hand member of the 3rd cross bar is fixedly connected with the second support bar, and first locating rod is in cuboid and water
Placing flat, the right-hand member of first locating rod are fixedly connected with the left surface of second montant, are set in first locating rod
There is the square hole through its upper and lower surface, second roller is provided with two and is contained in the square hole.
The upper end of second bracing wire is fixedly connected with second connection ring, and the lower end of second bracing wire is through described
Square hole and it is fixedly connected with the 3rd connection ring, second roller is acted against in second bracing wire, the 3rd connection
In semi-annular shape, the two ends of the 3rd connection ring are fixedly connected ring with the upper surface of the compacting frame, and the compacting frame is in sky
The heart it is round table-like, the balancing weight be in cylinder, the lower surface of the balancing weight with it is described compacting frame inner surface be fixedly connected,
Second fix bar is in cuboid and vertically places, and the upper end of second fix bar is fixed with the inner surface for tamping frame
Connection, the lower end of second fix bar is fixedly connected with the balancing weight.
Compared with prior art, the present invention has the advantages that：The tamping apparatus of construction of the present invention can
Bar hole is fast and effectively tamped, is tamped efficiency high, and it is good to tamp effect, while small volume, mobile flexible, user
Just, while hand labor intensity can be reduced.
Description of the drawings
Fig. 1 is the structural representation of the tamping apparatus of construction of the present invention.
Specific embodiment
Clearly complete explanation is made to the tamping apparatus of construction of the present invention below in conjunction with accompanying drawing.
As shown in figure 1, the tamping apparatus of construction of the present invention includes base plate 1, the support above the base plate 1
Device 2, the fixing device 3 on the left of the holder device 2, the electric machine 4 above the holder device 2, it is located at
Leverage 5 above the fixing device 3, the positioner 6 on the left of the fixing device 3 and it is arranged at the lever
Tamping unit 7 below device 5.
As shown in figure 1, the base plate 1 is in cuboid and horizontal positioned, the base plate 1 is provided with and is disposed below left and right two
First support block 11 of side, the first roller 12 below first support block 11.The upper table of first support block 11
Face is fixedly connected with the lower surface of the base plate 1, and the lower surface of first support block 11 is provided with the first groove 111.Described
One roller 12 is in cylinder, first roller 12 be contained in first groove 111 and with 11 pivot of the first support block
Axle connects so that first roller 12 can be in rotation in first groove 111.
As shown in figure 1, the holder device 2 include first support bar 21, on the right side of the first support bar 21
One brace 22, the first cross bar 23 on the left of the first support bar 21, below first cross bar 23 first are erected
Bar 24, the second cross bar 25 above the first support bar 21.The first support bar 21 is in cuboid and vertically places,
The lower end of the first support bar 21 is fixedly connected with the base plate 1, and the upper end of the first support bar 21 is horizontal with described second
Bar 25 is fixedly connected.First brace 22 is oblique, and the lower end of first brace 22 is fixedly connected with the base plate 1,
The upper end of first brace 22 is fixedly connected with the first support bar 21.First cross bar 23 is in that cuboid and level are put
Put, the right-hand member of first cross bar 23 is fixedly connected with the first support bar 21.First montant 24 is in cuboid and erects
Straight to place, the lower end of first montant 24 is fixedly connected with the base plate 1, the upper end of first montant 24 and described first
Cross bar 23 is fixedly connected.Second cross bar 25 is in cuboid and horizontal positioned.
As shown in figure 1, the fixing device 3 includes that first support 31, second be arranged in the first support 31 are oblique
Bar 32, the first bent stick 33 above second brace 32.The first support 31 is L-shaped, the first support 31
Lower end be fixedly connected with the base plate 1, the upper end of the first support 31 is horizontal, and first cross bar 23 and second is horizontal
The left end of bar 25 is fixedly connected with the first support 31.Second brace 32 is oblique, under second brace 32
End is fixedly connected with the base plate 1, and the upper end of second brace 32 is fixedly connected with the first support 31.Described first is curved
Curved bar 33 is in bending, and the two ends of first bent stick 33 are fixedly connected with the first support 31.
As shown in figure 1, the electric machine 4 includes motor 41, the second support 42 on the right side of the motor 41, arranges
In the output shaft 43 on the motor 41, the first fix bar 44 on the left of the motor 41, it is arranged at the output shaft 43
On the first bracing wire 45.The motor 41 is connected with power supply so as to normally can be run, and the motor 41 is provided with switch, side
Just which is opened or closes, and the lower surface of the motor 41 is fixedly connected with the upper surface of second cross bar 25.Described second
In concave shape, the lower end of the second support 42 is fixedly connected support 42 with the right-hand member of second cross bar 25, described second
The upper end of frame 42 is fixedly connected with the right surface of the motor 41.The output shaft 43 be in cylinder, the one of the output shaft 43
End is connected with the motor 41 so that the motor 41 can drive the output shaft 43 to rotate.First fix bar 44 is in
Cuboid and horizontal positioned, the right-hand member of first fix bar 44 are fixedly connected with the motor 41, first fix bar 44
Left end be fixedly connected with the first support 31.The lower end of first bracing wire 45 is fixedly connected with the output shaft 43.
As shown in figure 1, the leverage 5 include second support bar 54, above the second support bar 54
One fixed block 53, the lever 51 above first fixed block 53, the first company on the right side of first fixed block 53
Connect ring 52, the second connection ring 55 on the left of first fixed block 53.The second support bar 54 is in cuboid and vertical
Place, the lower end of the second support bar 54 is fixedly connected with the upper surface of the first support 31, the second support bar 54
Upper end be provided with the second groove 541, second groove 541 is in rectangular-shape.First fixed block, 53 cuboid, described
One fixed block 53 is contained in second groove 541 and pivotally connected with the second support bar 54 so that described first is solid
Determining block 53 can be solid with the lower surface of lever 51 in rotation in second groove 541, the upper surface of first fixed block 53
It is fixed to connect.The lever 51 is in cuboid.First connection ring 52 be in semi-annular shape, the two ends of first connection ring 52 with
The lower surface of the lever 51 is fixedly connected, and the upper end of first bracing wire 45 is fixedly connected with first connection ring 52.Institute
The second connection ring 55 is stated in semi-annular shape, the two ends of second connection ring 55 are fixedly connected with the lower surface of the lever 51.
As shown in figure 1, the positioner 6 includes that the second montant 63, on the left of second montant 63 first are determined
Position bar 61, the second roller 62 being arranged in first locating rod 61, the 3rd cross bar on the right side of second montant 63
64.Second montant 63 is in cuboid and vertically places, the right side of the upper end of the first support 31 and second montant 63
Surface is fixedly connected.3rd cross bar 64 is in cuboid and horizontal positioned, the left end and described second of the 3rd cross bar 64
Montant 63 is fixedly connected, and the right-hand member of the 3rd cross bar 64 is fixedly connected with the second support bar 54.First locating rod
61 is in cuboid and horizontal positioned, and the right-hand member of first locating rod 61 is fixedly connected with the left surface of second montant 63,
First locating rod 61 is provided with the square hole 611 through its upper and lower surface, and the square hole 611 is square.Second roller
62 are provided with two and are contained in the square hole 611, and second roller 62 or so is staggered relatively and mutually leans together.
As shown in figure 1, the tamping unit 7 includes the second bracing wire 71, the compacting frame below second bracing wire 71
72nd, positioned at the 3rd connection ring 75 tamped above frame 72, the balancing weight 73 being contained in the compacting frame 72 and positioned at institute
State the second fix bar 74 of the 73 top left and right sides of balancing weight.The upper end of second bracing wire 71 is solid with second connection ring 55
Fixed to connect, the lower end of second bracing wire 71 is passed through the square hole 611 and is fixedly connected with the 3rd connection ring 75, and described the
Second wheel 62 is acted against in second bracing wire 71.3rd connection ring 75 is in semi-annular shape, the 3rd connection ring 75
Two ends are fixedly connected with the upper surface of the compacting frame 72.In hollow round table-like, the compacting frame 72 can for the compacting frame 72
To tamp to bar hole.The balancing weight 73 in cylinder, tamped in frame 72 with described by the lower surface of the balancing weight 73
Surface is fixedly connected, and the quality of the balancing weight 73 is larger, and then can apply enough power to tamping frame 72, so that bar is cheated
Compacting.Second fix bar 74 is provided with two, and second fix bar 74 is in cuboid and vertically places, and described second fixes
The upper end of bar 74 is fixedly connected with the inner surface of the compacting frame 72, lower end and the balancing weight 73 of second fix bar 74
It is fixedly connected.
As shown in figure 1, when the tamping apparatus of the construction of the present invention is used, the present invention is pushed to bar hole first
Place, and bar hole is caused positioned at the underface of the compacting frame 72.Then open the switch of motor 41 so that the motor 41 drives
The output shaft 43 rotates, and then first bracing wire 45 is tightened up, then so that first connection ring 52 is to moving down
It is dynamic so that the lever 51 turns clockwise around the upper end of the second support bar 54 so that the left end of the lever 51 to
Upper movement, and then second connection ring 55 is moved up, second bracing wire 71 is tightened up, the 3rd connection ring 75
And compacting frame 72 is moved up, after the compacting frame 72 moves up a segment distance, the switch of the motor 41 is closed so that
It is described compacting frame 72 move down, due to the quality of balancing weight 73 it is larger so that the balancing weight 73 give it is described compacting frame 72
Enough power so that tamp frame 72 by bar pit tamper reality.If not tamping, the switch of motor 41 can be again turned on, be then repeated
Above-mentioned steps so that compacting frame 72 is tamped to bar hole again, to meet the needs of power construction.Due to the second bracing wire 71
In 62 support of the second roller so that the compacting frame 72 vertically can only be moved up and down, without moving left and right, so as to compacting
Frame 72 is positioned.So far, the tamping apparatus of construction of the present invention is finished using process description.
Claims (8)
1. a kind of tamping apparatus of construction, it is characterised in that：The tamping apparatus of the construction includes base plate, position
In the holder device above the base plate, the fixing device on the left of the holder device, above the holder device
Electric machine, the leverage above the fixing device, the positioner on the left of the fixing device and set
The tamping unit being placed in below the leverage, the base plate include the first support block, the position for being disposed below the left and right sides
The first roller below first support block, the holder device includes first support bar, positioned at the first support bar
Right side the first brace, the first cross bar on the left of the first support bar, below first cross bar first erect
Bar, the second cross bar above the first support bar, the fixing device include first support, are arranged at described first
The second brace on frame, the first bent stick above second brace, the electric machine includes motor, positioned at described
Second support, the output shaft being arranged on the motor on the right side of motor, the first fix bar on the left of the motor, setting
The first bracing wire on the output shaft, the leverage includes second support bar, above the second support bar
First fixed block, the lever above first fixed block, the first connection ring on the right side of first fixed block, position
The second connection ring on the left of first fixed block, the positioner include the second montant, left positioned at second montant
It is first locating rod of side, the second roller being arranged in first locating rod, the on the right side of second montant the 3rd horizontal
Bar, the tamping unit include the second bracing wire, the compacting frame below second bracing wire, tamp above frame positioned at described
3rd connection ring, the balancing weight for being contained in the compacting inframe and the second fixation positioned at the left and right sides above the balancing weight
Bar.
2. the tamping apparatus of construction as claimed in claim 1, it is characterised in that：The upper surface of first support block
It is fixedly connected with the lower surface of the base plate, the lower surface of first support block is provided with the first groove, and first roller is in
Cylinder, first roller are contained in first groove and pivotally connected with first support block.
3. the tamping apparatus of construction as claimed in claim 2, it is characterised in that：The first support bar is in cuboid
And vertically place, the lower end of the first support bar is fixedly connected with the base plate, the upper end of the first support bar with it is described
Second cross bar is fixedly connected, and first brace is oblique, and the lower end of first brace is fixedly connected with the base plate, institute
The upper end for stating the first brace is fixedly connected with the first support bar, and first cross bar is in cuboid and horizontal positioned, described
The right-hand member of the first cross bar is fixedly connected with the first support bar, and first montant is in cuboid and vertically places, and described the
The lower end of one montant is fixedly connected with the base plate, and the upper end of first montant is fixedly connected with first cross bar.
4. the tamping apparatus of construction as claimed in claim 3, it is characterised in that：The first support is L-shaped, described
The lower end of first support is fixedly connected with the base plate, and the upper end of the first support is horizontal, first cross bar and
The left end of two cross bars is fixedly connected with the first support, and second brace is oblique, the lower end of second brace with
The base plate is fixedly connected, and the upper end of second brace is fixedly connected with the first support, and first bent stick is in curved
Curved, the two ends of first bent stick are fixedly connected with the first support.
5. the tamping apparatus of construction as claimed in claim 4, it is characterised in that：The lower surface of the motor with it is described
The upper surface of the second cross bar is fixedly connected, and, in concave shape, the lower end of the second support is horizontal with described second for the second support
The right-hand member of bar is fixedly connected, and the upper end of the second support is fixedly connected with the right surface of the motor, and the output shaft is in circle
Cylinder, one end of the output shaft and the motor connection, first fix bar is in cuboid and horizontal positioned, and described first
The right-hand member of fix bar is fixedly connected with the motor, and the left end of first fix bar is fixedly connected with the first support, institute
The lower end for stating the first bracing wire is fixedly connected with the output shaft.
6. the tamping apparatus of construction as claimed in claim 5, it is characterised in that：The second support bar is in cuboid
And vertically place, the lower end of the second support bar is fixedly connected with the upper surface of the first support, the second support bar
Upper end be provided with the second groove, the first fixed block length cube, first fixed block be contained in second groove and
Pivotally connected with the second support bar, the upper surface of the first fixed block is fixedly connected with the lower surface of lever, the thick stick
Bar is in cuboid, and first connection ring is in semi-annular shape, and the two ends of first connection ring are with the lower surface of the lever admittedly
Fixed to connect, the upper end of first bracing wire is fixedly connected with first connection ring, and second connection ring is in semi-annular shape, institute
The two ends for stating the second connection ring are fixedly connected with the lower surface of the lever.
7. the tamping apparatus of construction as claimed in claim 6, it is characterised in that：Second montant be in cuboid and
Vertically place, the upper end of the first support is fixedly connected with the right surface of second montant, the 3rd cross bar is in rectangular
Body and horizontal positioned, the left end of the 3rd cross bar are fixedly connected with second montant, the right-hand member of the 3rd cross bar and institute
State second support bar to be fixedly connected, first locating rod is in cuboid and horizontal positioned, the right-hand member of first locating rod with
The left surface of second montant is fixedly connected, and first locating rod is provided with the square hole through its upper and lower surface, and described
Second wheel is provided with two and is contained in the square hole.
8. the tamping apparatus of construction as claimed in claim 7, it is characterised in that：The upper end of second bracing wire and institute
State the second connection ring to be fixedly connected, the lower end of second bracing wire is passed through the square hole and fixed with the 3rd connection ring and connected
Connect, second roller is acted against in second bracing wire, the 3rd connection ring is in semi-annular shape, the 3rd connection ring
Two ends are fixedly connected with the upper surface of the compacting frame, and in hollow round table-like, the balancing weight is in cylinder to the compacting frame,
The lower surface of the balancing weight is fixedly connected with the inner surface of the compacting frame, and second fix bar is in cuboid and vertically puts
Put, the upper end of second fix bar is fixedly connected with the inner surface of the compacting frame, the lower end of second fix bar and institute
State balancing weight to be fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249039.2A CN106522197A (en) | 2016-12-29 | 2016-12-29 | Tamping equipment for building construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249039.2A CN106522197A (en) | 2016-12-29 | 2016-12-29 | Tamping equipment for building construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106522197A true CN106522197A (en) | 2017-03-22 |
Family
ID=58338506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611249039.2A Pending CN106522197A (en) | 2016-12-29 | 2016-12-29 | Tamping equipment for building construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106522197A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104100A (en) * | 2017-10-09 | 2018-06-01 | 广西南宁东能建筑工程技术有限公司 | A kind of special tamping unit of slope pavement |
| CN108118678A (en) * | 2017-10-09 | 2018-06-05 | 广西南宁东能建筑工程技术有限公司 | A kind of special tamping unit in road slope face |
| CN108118679A (en) * | 2017-10-09 | 2018-06-05 | 广西南宁东能建筑工程技术有限公司 | A kind of special tamping unit in slope |
| CN109914381A (en) * | 2019-02-14 | 2019-06-21 | 张苇 | A kind of subgrade construction ramming compaction apparatus |
-
2016
- 2016-12-29 CN CN201611249039.2A patent/CN106522197A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104100A (en) * | 2017-10-09 | 2018-06-01 | 广西南宁东能建筑工程技术有限公司 | A kind of special tamping unit of slope pavement |
| CN108118678A (en) * | 2017-10-09 | 2018-06-05 | 广西南宁东能建筑工程技术有限公司 | A kind of special tamping unit in road slope face |
| CN108118679A (en) * | 2017-10-09 | 2018-06-05 | 广西南宁东能建筑工程技术有限公司 | A kind of special tamping unit in slope |
| CN109914381A (en) * | 2019-02-14 | 2019-06-21 | 张苇 | A kind of subgrade construction ramming compaction apparatus |
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Application publication date: 20170322 |