CN207554069U - Concrete spraying trolley arm support - Google Patents
Concrete spraying trolley arm support Download PDFInfo
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- CN207554069U CN207554069U CN201721358494.6U CN201721358494U CN207554069U CN 207554069 U CN207554069 U CN 207554069U CN 201721358494 U CN201721358494 U CN 201721358494U CN 207554069 U CN207554069 U CN 207554069U
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Abstract
The utility model provides a kind of concrete spraying trolley arm support, including basic arm and telescopic arm, its main feature is that：The basic arm and telescopic arm are the hollow sleeve by being welded after four pieces of high strength steel plate bendings.Four pieces of high strength steel plates include top plate, two blocks of side plates and bottom plate, top plate is tablet, two blocks of side plates are symmetrical arranged, side plate upper edge is right angle bending edge, and the side plate lower edge is obtuse angle bending edge, and bottom plate both sides are the obtuse angle bending edge upwarped, the both sides of top plate are Chong Die with the right angle bending edge of two blocks of side plates respectively, and lap is welded as a whole, the both sides that bottom plate upwarps are Chong Die with the obtuse angle bending edge of two blocks of side plates respectively, and lap is welded as a whole.The cross section structure reasonable design of its basic arm and telescopic arm, intensity is high, is not susceptible to fatigue fracture phenomenon.
Description
Technical field
The utility model belongs to technical field of engineering machinery, is related to a kind of changing for arm support on jib concrete wet shot trolley
Into, suitable for the construction of mine working, railway and vcehicular tunnel, water conservancy culvert, each underground engineering etc., specifically a kind of coagulation
Native wet shot trolley arm support.
Background technology
At present, in the construction of each mine working in China, railway and vcehicular tunnel, water conservancy culvert, each underground engineering etc., extensively
This international advanced method for protecting support using combined bolting and shotcrete, concrete spraying trolley are the capital equipments of the operation, wet shot trolley
With revolution telescopic arm support, during work, by pumping system by the concrete being stirred by arm support pipeline to spray gun,
Compressed air and accelerator, arm support direct service face, worker are accessed at gun slot only needs operation and control device that can spray concrete
Construction surface is coated onto, is exactly concrete supporting after curing, the concrete structure of this arm support spraying is close, is not easy chip off-falling, damage
It consumes small, it is not required that carry the additional means such as scaffold and construct, reduce construction cost.
The cross section structure of the revolution telescopic arm support of concrete spraying trolley at present, basic arm and telescopic arm is unreasonable,
Intensity is not high, and fatigue fracture phenomenon easily occurs.
Invention content
The utility model is the solution above problem of the existing technology, provides a kind of concrete spraying trolley arm support,
The cross section structure reasonable design of basic arm and telescopic arm, intensity is high, is not susceptible to fatigue fracture phenomenon.
The purpose of this utility model is achieved through the following technical solutions：
A kind of concrete spraying trolley arm support, including basis arm, basic arm and telescopic arm, which is characterized in that the base
This arm is the hollow sleeve by being welded after four pieces of high strength steel plate bendings, and weld seam junction is overlap joint；The telescopic arm
For the hollow sleeve by being welded after four pieces of high strength steel plate bendings, and weld seam junction is overlap joint.
Improvement to above-mentioned technical proposal：Four pieces of high strength steel plates include top plate, two blocks of side plates and bottom plate, the top plate
For tablet, two blocks of side plates are symmetrical arranged, and the side plate upper edge is right angle bending edge, and the side plate lower edge is bent for obtuse angle
Side, the bottom plate both sides are the obtuse angle bending edge upwarped, and the both sides of the top plate are bent respectively with the right angle of two blocks of side plates
Side is overlapped, and lap is welded as a whole, and the both sides that the bottom plate upwarps are bent respectively with the obtuse angle of two blocks of side plates
Side is overlapped, and lap is welded as a whole.
Above-mentioned technical proposal is further improved：The both sides bottom surface of the top plate right angle with two blocks of side plates respectively
Bending edge top surface overlaps, and it is 30-100mm to overlap overlapping widths；The both sides top surface that the bottom plate upwarps respectively with described two pieces
The obtuse angle bending edge top surface overlap joint of side plate, and it is 30-100mm to overlap overlapping widths.
Above-mentioned technical proposal is further improved：The thickness of the top plate, two blocks of side plates and bottom plate is 4-10mm.
Above-mentioned technical proposal is further improved：The front end of the basic arm is inserted into the rear end of the telescopic arm.
The advantages of the utility model and good effect are：
The telescopic arm and basic arm of the utility model are after being bent by 4 pieces of high strength steel plates and are welded into hollow sleeve knot
The cross section structure reasonable design of structure, basic arm and telescopic arm, intensity is high, is not susceptible to fatigue fracture phenomenon.
Description of the drawings
Fig. 1 is a kind of front view of concrete spraying trolley arm support of the utility model；
Fig. 2 is a kind of concrete spraying trolley boom frame telescopic arm extended configuration vertical view of the utility model；
Fig. 3 is the cross-sectional view of the basic arm on a kind of concrete spraying trolley arm support of the utility model；
Fig. 4 is on a kind of concrete spraying trolley arm support of the utility model or telescopic arm cross-sectional view.
Serial number in figure：1- basic arms, 1.1- basic arms left plate, 1.2- basic arms top plate, 1.3- basic arms right side
Plate, 1.4- basic arms bottom plate, 2- telescopic arms, 2.1- telescopic arms left plate, 2.2- telescopic arms top plate, 2.3- telescopic arms right plate,
2.4- telescopic arm bottom plates.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing：
Referring to Fig. 1, Fig. 2, the embodiment of the utility model concrete spraying trolley arm support, including basic arm 1 and telescopic arm
2, basic arm 1 is by four pieces of high strength steel plates（Including top plate, two blocks of side plates and bottom plate）The hollow sleeve being welded after bending, and
Weld seam junction is overlap joint.Telescopic arm 2 and the hollow sleeve by being welded after four pieces of high strength steel plate bendings, and weld seam knot
It is overlap joint at conjunction.
Specifically：Referring to Fig. 3, four pieces of high strength steel plates in above-mentioned basic arm 1 include basic arm top plate 1.2, basic arm
Left plate 1.1, basic arm right plate 1.3 and basic arm bottom plate 1.4, basic arm top plate 1.2 are tablet.Basic arm left plate 1.1
It being symmetrical arranged with basic arm right plate 1.3, the upper edge of basic arm left plate 1.1 and basic arm right plate 1.3 is right angle bending edge,
The lower edge of basic arm left plate 1.1 and basic arm right plate 1.3 is obtuse angle bending edge, and 1.4 both sides of basic arm bottom plate upwarp
Obtuse angle bending edge.The both sides of basic arm top plate 1.2 respectively with basic arm left plate 1.1 and the quarter bend of basic arm right plate 1.3
Flanging is overlapped, and lap is welded as a whole；The both sides that basic arm bottom plate 1.4 upwarps respectively with basic arm left plate 1.1
And the obtuse angle bending edge overlapping of basic arm right plate 1.3, and lap is welded as a whole.
Further, the both sides bottom surface of above-mentioned basic arm top plate 1.2 respectively on the right side of basic arm left plate 1.1 and basic arm
The right angle bending edge top surface overlap joint of plate 1.3, and it is 30-100mm to overlap overlapping widths；Above-mentioned basic arm bottom plate 1.4 upwarp two
Side top surface overlaps respectively with the obtuse angle bending edge top surface of basic arm left plate 1.1 and basic arm right plate 1.3, and it is wide to overlap overlapping
It spends for 30-100mm.Above-mentioned basic arm top plate 1.2, basic arm bottom plate 1.4, basic arm left plate 1.1 and basic arm right plate 1.3
Thickness be 4-10mm.
Referring to Fig. 4, four pieces of high strength steel plates in above-mentioned telescopic arm 2 include telescopic arm top plate 2.2, telescopic arm left plate 2.1,
Telescopic arm right plate 2.3 and telescopic arm bottom plate 2.4, telescopic arm top plate 2.2 are tablet.Telescopic arm left plate 2.1 is right with telescopic arm
Side plate 2.3 is symmetrical arranged, and the upper edge of telescopic arm left plate 2.1 and telescopic arm right plate 2.3 is right angle bending edge, on the left of telescopic arm
The lower edge of plate 2.1 and telescopic arm right plate 2.3 is obtuse angle bending edge, and 2.4 both sides of telescopic arm bottom plate are the obtuse angle bending edge upwarped.
The both sides of telescopic arm top plate 2.2 are Chong Die with the right angle bending edge of telescopic arm left plate 2.1 and telescopic arm right plate 2.3 respectively, and
Lap is welded as a whole；The both sides that telescopic arm bottom plate 2.4 upwarps respectively on the right side of telescopic arm left plate 2.1 and telescopic arm
The obtuse angle bending edge overlapping of plate 2.3, and lap is welded as a whole.
Further, the both sides bottom surface of above-mentioned telescopic arm top plate 1.2 respectively on the right side of telescopic arm left plate 1.1 and telescopic arm
The right angle bending edge top surface overlap joint of plate 1.3, and it is 30-100mm to overlap overlapping widths；Above-mentioned telescopic arm bottom plate 1.4 upwarp two
Side top surface overlaps respectively with the obtuse angle bending edge top surface of telescopic arm left plate 1.1 and telescopic arm right plate 1.3, and it is wide to overlap overlapping
It spends for 30-100mm.Said arm is stretched top plate 1.2, telescopic arm bottom plate 1.4, telescopic arm left plate 1.1 and telescopic arm right plate 1.3
Thickness be 4-10mm.
The front end that above-mentioned 2 rear end of telescopic arm is inserted directly into basic arm 1 realizes flexible connection.
The basic arm 1 and telescopic arm 2 of high strength steel plate welding, increase arm support overall stiffness, are not susceptible to fatigue fracture and show
As；Jitter amplitude is small, and stability is good, can improve by spray plane quality, and makes by the more smooth beauty of spray plane.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above, this
The those of ordinary skill of technical field is in the essential scope of the utility model, made variations, modifications, additions or substitutions,
It should also belong to the protection scope of the utility model.
Claims (6)
1. a kind of concrete spraying trolley arm support, including basic arm and telescopic arm, which is characterized in that the basic arm is by four
The hollow sleeve being welded after block high strength steel plate bending, and weld seam junction is overlap joint；The telescopic arm is by four pieces of height
The hollow sleeve being welded after strong steel plate bending, and weld seam junction is overlap joint.
2. concrete spraying trolley arm support described in accordance with the claim 1, which is characterized in that four pieces of high strength steel plates include top
Plate, two blocks of side plates and bottom plate, the top plate are tablet, and two blocks of side plates are symmetrical arranged, and the side plate upper edge is bent for right angle
Side, the side plate lower edge are obtuse angle bending edge, and the bottom plate both sides are the obtuse angle bending edge upwarped, and the both sides of the top plate are distinguished
It is Chong Die with the right angle bending edge of two blocks of side plates, and lap is welded as a whole, the both sides difference that the bottom plate upwarps
It is Chong Die with the obtuse angle bending edge of two blocks of side plates, and lap is welded as a whole.
3. concrete spraying trolley arm support described in accordance with the claim 2, which is characterized in that the both sides bottom surface difference of the top plate
It is overlapped with the right angle bending edge top surface of two blocks of side plates, and it is 30-100mm to overlap overlapping widths；The bottom plate upwarp two
Side top surface overlaps respectively with the obtuse angle bending edge top surface of two blocks of side plates, and it is 30-100mm to overlap overlapping widths.
4. according to the concrete spraying trolley arm support described in Claims 2 or 3, which is characterized in that the top plate, two blocks of side plates and
The thickness of bottom plate is 4-10mm.
5. according to claim 1-3 any one of them concrete spraying trolley arm supports, which is characterized in that after the telescopic arm
The front end of the basic arm is inserted at end.
6. according to the concrete spraying trolley arm support described in claim 4, which is characterized in that institute is inserted into the rear end of the telescopic arm
State the front end of basic arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358494.6U CN207554069U (en) | 2017-10-20 | 2017-10-20 | Concrete spraying trolley arm support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358494.6U CN207554069U (en) | 2017-10-20 | 2017-10-20 | Concrete spraying trolley arm support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554069U true CN207554069U (en) | 2018-06-29 |
Family
ID=62673553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721358494.6U Active CN207554069U (en) | 2017-10-20 | 2017-10-20 | Concrete spraying trolley arm support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554069U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111335638A (en) * | 2020-03-10 | 2020-06-26 | 三一汽车制造有限公司 | Boom and working equipment |
| WO2021179546A1 (en) * | 2020-03-10 | 2021-09-16 | 三一汽车制造有限公司 | Boom and working equipment |
-
2017
- 2017-10-20 CN CN201721358494.6U patent/CN207554069U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111335638A (en) * | 2020-03-10 | 2020-06-26 | 三一汽车制造有限公司 | Boom and working equipment |
| WO2021179546A1 (en) * | 2020-03-10 | 2021-09-16 | 三一汽车制造有限公司 | Boom and working equipment |
| EP4119744A4 (en) * | 2020-03-10 | 2024-03-20 | Sany Automobile Manufacturing Co., Ltd. | Arm support and working device |
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