CN202000675U - Concrete gunniting cart and telescopic arm thereof - Google Patents
Concrete gunniting cart and telescopic arm thereof Download PDFInfo
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- CN202000675U CN202000675U CN2010206141797U CN201020614179U CN202000675U CN 202000675 U CN202000675 U CN 202000675U CN 2010206141797 U CN2010206141797 U CN 2010206141797U CN 201020614179 U CN201020614179 U CN 201020614179U CN 202000675 U CN202000675 U CN 202000675U
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- arm
- chamfering
- segment
- joint
- telescopic
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Abstract
The utility model discloses a telescopic arm, which comprises a first knuckle arm (1) and a second knuckle arm (2), wherein the first knuckle arm (2) is sleeved in the first knuckle arm (1) and can be stretched; the cross section of the first knuckle arm (1) and the cross section of the second knuckle arm (2) are respectively polygonal; the polygons comprise a first horizontal side (11) and a second horizontal side (12) which are opposite to each other as well as a first vertical side (13) and a second vertical side (14) which are opposite to each other; chamfers (15) are respectively arranged between the horizontal side and the vertical side which are adjacent to each other; and guide sliding blocks (3) are respectively arranged at the chamfers between the first knuckle arm (1) and the second knuckle arm (2). Therefore, when the second knuckle arm (2) completely extends out, the contacted area between the first knuckle arm (1) and the second knuckle arm (2) is increased, and the pressure intensity is reduced, so that the local stability of the telescopic arm is enhanced. The utility model further discloses a concrete gunniting cart, which comprises an arm support. The arm support comprises the telescopic arm. The concrete gunniting cart has the same technical effects as the telescopic arm.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of telescopic arm that is used for concrete whitewashing car.The utility model also relates to a kind of concrete whitewashing car that comprises above-mentioned telescopic arm.
Background technology
Concrete whitewashing car is by spraying machinery, utilize compressed air or other power, with the concrete mix that cooperates by a certain percentage, by line transportation and with high velocity jet to being subjected to spray plane (vertical shaft for mine gallery, traffic tunnel, hydraulic tunnel, all kinds of cavern, geotechnical engineering, old building etc.) to go up a kind of engineering truck that also can make the rapid setting and harden of concrete.
For concrete being ejected into the big as far as possible scope of operation, concrete whitewashing car has the extension type jib, makes concrete arrive different operating areas by the flexible oil cylinder luffing that reaches of jib.Concrete whitewashing car usually carries out operation at narrow and small underground passage, and this just requires its machine volume and quality less, convenient moving.Therefore, when the telescopic arm of design concrete whitewashing car, take all factors into consideration the aspects such as control of its industrial and mineral, mechanical property, welding deformation and stress.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of telescopic arm in the prior art; Fig. 2 is the lateral view of Fig. 1.
As shown in Figure 1, this whitewashing car telescopic arm comprise first segment arm 1 ' and second the joint arm 2 '.Under non-operating mode, the second joint arm 2 ' shrink in first segment arm 1 ' inside; Under operating condition, thereby arm 2 ' can freely stretch in first segment arm 1 ' casing reaches the scope of operation of appointment according to needs second joint of operating area.
In the above-mentioned prior art, as shown in Figure 2, first segment arm 1 ' and the second joint arm 2 ' cross section be the casing of rectangle, the middle part in the gap of two tanks be equipped with guide runner 3 '.This casing is welded by the similar rectangle steel plate of shape, and the upper and lower cover plate and the web of casing weld together by fillet weld.Briefly introduce the course of work of this telescopic arm below.
Please refer to Fig. 3, Fig. 4 and Fig. 5, Fig. 3 is the structural representation of telescopic arm when the second joint arm all stretches out of Fig. 1; Fig. 4 is the force analysis schematic diagram of the first segment arm among Fig. 3; Fig. 5 is the force analysis schematic diagram of the joint of second among Fig. 3 arm.
As shown in Figure 3, when the second joint arm 2 ' when all stretching out, be subjected to the influence of the second joint arm, 2 ' self gravitation, first segment arm 1 ' with the second joint arm 2 ' only contact at two places, first place be second joint arm 2 ' the be positioned at first segment arm 1 ' the upper end of inner terminal, the extruding force of first segment arm 1 ' the be subjected to second joint arm 2 ' make progress herein; Second place be second joint arm 2 ' the be positioned at first segment arm 1 ' the bottom of outermost end, first segment arm 1 ' be subjected to second joint arm 2 ' downward extruding force herein.Because first segment arm 1 ' and the second joint arm 2 ' the cross section middle part, gap that is rectangle and two tanks be equipped with guide runner 3 ', first segment arm 1 ' with the second joint arm 2 ' only at the guide runner 3 of centre ' locate to contact, the contact squish area is little and the power that is squeezed is big, this causes first segment arm 1 ' and the second joint arm 2 ' be damaged because of insufficient strength at this two sections place easily, and local stability is poor.
Therefore, on the basis of existing technology, how improving the structure of telescopic arm, effectively improve the local stability and the anti-flexion capabilities of telescopic arm, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of telescopic arm, and this telescopic arm has local stability and stronger anti-flexion capabilities preferably.Another purpose of the present utility model provides a kind of concrete whitewashing car that comprises above-mentioned telescopic arm.
For solving the problems of the technologies described above, the utility model provides a kind of telescopic arm of the car that is used to whitewash, and comprises the first segment arm, and is set in the described first segment arm and the telescopic second joint arm; The cross section of described first segment arm, the described second joint arm is polygon, described polygon comprises the first relative horizontal sides, second horizontal sides, relative first vertical edge, second vertical edge have chamfering between every adjacent described horizontal sides and the described vertical edge; Chamfering place between described first segment arm and the described second joint arm also is provided with guide runner.
Preferably, the chamfering on described polygonal top is a rounded corner, the chamfering side of the being chamfering of bottom.
Preferably, the chamfering side of the being chamfering on described polygonal top, the chamfering of bottom is a rounded corner.
Preferably, the chamfering of the chamfering on described polygonal top, bottom is rounded corner.
Preferably, the chamfering side of the being chamfering of the chamfering on described polygonal top, bottom.
Preferably, the casing of described first segment arm, the described second joint arm is the casing that upper and lower two parts are welded; And pad is positioned on the relative vertical edge.
Preferably, the pad of described first segment arm, the described second joint arm all is positioned at the mid point of described vertical edge.
Preferably, the pad of described first segment arm, the described second joint arm all is positioned at the top of the mid point of described vertical edge.
Preferably, the weld seam of described pad is bevelled weld seam.
Telescopic arm provided by the utility model, the cross section of its first segment arm, the second joint arm is polygon, has chamfering between this polygonal every adjacent horizontal sides and the vertical edge; Chamfering place between first segment arm, the second joint arm also is provided with guide runner.
Adopt said structure, when the second joint arm all stretches out, be subjected to the influence of the second joint arm self gravitation, the top contact surface of the first segment arm and the second joint arm and the area that the bottom contact surface is two guide runners, the prior art of comparing, contact area increases, and pressure reduces under the equal stressed situation, makes the local stability of telescopic arm strengthen.In addition, because contact surface is horizontal by certain angle, the second joint arm can be decomposed to horizontal direction to the part of the extruding force of first segment arm, further reduce the first segment arm, effectively improve the stability of first segment arm part in compression in the suffered extruding force of vertical direction.Because active force and reaction force equal and opposite in direction, direction are opposite, in like manner, this structure also can effectively improve the local stability of the second joint arm.
This shows, adopt the telescopic arm of said structure, can effectively increase the contact area of the first segment arm and the second joint arm, make it have local stability and stronger anti-flexion capabilities preferably.
In the concrete embodiment of another kind, the casing of first segment arm, the described second joint arm is the casing that upper and lower two parts are welded; And pad is positioned on the relative vertical edge.Like this, the body structure of first segment arm, the second joint arm only needs two long straight welds, and prior art has reduced by two long straight welds relatively, and therefore the welding deformation that casing takes place in welding process is less, has further strengthened the stability of telescopic arm structure.
The utility model also provides a kind of concrete whitewashing car, comprises jib, and described jib adopts above-mentioned each described telescopic arm.Because above-mentioned telescopic arm has above-mentioned technique effect, therefore, comprise that the concrete whitewashing car of this telescopic arm has identical technique effect, do not repeat them here.
Description of drawings
Fig. 1 is the structural representation of telescopic arm in the prior art;
Fig. 2 is the lateral view of Fig. 1;
Fig. 3 is the structural representation of telescopic arm when the second joint arm all stretches out of Fig. 1;
Fig. 4 is the force analysis schematic diagram of the first segment arm among Fig. 3;
Fig. 5 is the force analysis schematic diagram of the joint of second among Fig. 3 arm;
Fig. 6 is the structural representation of the cross section of telescopic arm that the utility model provides;
Fig. 7 is the overall structure figure of Fig. 6;
Fig. 8 is that first segment arm among Fig. 7 is along the sectional view of C-C;
Fig. 9 is that first segment arm among Fig. 7 is along the sectional view of D-D;
Figure 10 is the sectional view of the joint of second among Fig. 7 arm along C-C;
Figure 11 is the sectional view of the joint of second among Fig. 7 arm along D-D.
The specific embodiment
Core of the present utility model provides a kind of telescopic arm that is used for concrete whitewashing car, and this telescopic arm has local stability and stronger anti-flexion capabilities preferably.Another core of the present utility model provides a kind of concrete whitewashing car that comprises above-mentioned telescopic arm.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 6, Fig. 6 is the structural representation of the cross section of telescopic arm that the utility model provides;
In one embodiment, as shown in Figure 6, telescopic arm provided by the utility model comprises the first segment arm 1 and the second joint arm 2.Under non-operating mode, the second joint arm 2 shrinks in first segment arm 1 inside; Under operating condition, reach the scope of operation of appointment thereby can in first segment arm 1 casing, freely stretch according to the needs second joint arm 2 of operating area.The cross section of first segment arm 1, the second joint arm 2 is polygon, and this polygon comprises relative first horizontal sides 11, second horizontal sides 12, relative first vertical edge 13, second vertical edge 14, and have chamfering 15 between every adjacent horizontal sides and the vertical edge; Chamfering 15 places between first segment arm 1, the second joint arm 2 also are provided with guide runner 3, and guide runner 3 plays guiding when the second joint arm 2 stretches out or shrinks with respect to first segment arm 1.
Please refer to Fig. 7 to Fig. 9, Fig. 7 is the overall structure figure of Fig. 6; Fig. 8 is that first segment arm among Fig. 7 is along the sectional view of C-C; Fig. 9 is that first segment arm among Fig. 7 is along the sectional view of D-D.
As shown in the figure, adopt said structure, when the second joint arm 2 all stretches out, be subjected to the influence of the second joint arm, 2 self gravitations, first segment arm 1 only contacts at two places with the second joint arm 2, first place is the upper end that the second joint arm 2 is positioned at the inner terminal of first segment arm 1, and first segment arm 1 is subjected to the extruding force that the second joint arm 2 makes progress herein; Second place is that the second joint arm 2 is positioned at the bottom of the outermost end of first segment arm 1, and first segment arm 1 is subjected to the downward extruding force of the second joint arm 2 herein.At this moment, first segment arm 1 and the top contact surface of the second joint arm 2 and the area that the bottom contact surface is two guide runners 3, the prior art of comparing, contact area increases, and pressure reduces under the equal stress condition, makes the local stability of telescopic arm strengthen.In addition, because chamfering 15 places of contact surface between the first segment arm 1 and the second joint arm 2, horizontal by certain angle, second part that saves the extruding force of 2 pairs of first segment arms 1 of arm can be decomposed to horizontal direction, further reduce first segment arm 1 in the suffered extruding force of vertical direction, effectively improved the stability of first segment arm 1 part in compression.
Please refer to Figure 10 and Figure 11, Figure 10 is the sectional view of the joint of second among Fig. 7 arm along C-C; Figure 11 is the sectional view of the joint of second among Fig. 7 arm along D-D.
As shown in Figure 10 and Figure 11,, in like manner, adopts such structure, can reduce the suffered extruding force of the second joint arm 2 equally, strengthen second local stability that saves arm 2 because active force and reaction force equal and opposite in direction, direction are opposite.
In addition, because above-mentioned guide runner is chamfering 15 places between the first segment arm 1 and the second joint arm 2 all, the prior art of comparing, guide runner 3 thickness vertically increases, can increase the volume of guide runner 3, make the anti-wear performance of guide runner 3 access bigger improvement, improved the application life of guide runner.
This shows, adopt the telescopic arm of said structure, can effectively increase the contact area of the first segment arm 1 and the second joint arm 2, make it have local stability and stronger anti-flexion capabilities preferably.
Need to prove that the foregoing description does not all limit for the shape and the size of the chamfering between every adjacent level limit and the vertical edge.The chamfering side of being chamfering or the rounded corner between every adjacent level limit and the vertical edge no matter; no matter how many this chamfer radius is, have this chamfering and first segment arm 1 and the second chamfering place of joint between the arm 2 be provided with the telescopic arm of guide runner 3 all should be in protection domain of the present utility model.
The shape of the chamfering of above-mentioned telescopic arm can also further be set.
In a kind of concrete embodiment, as shown in Figure 6, the cross section of the first segment arm 1 of this telescopic arm and the second joint arm 2 can be above-mentioned polygon, and the chamfering on this polygonal top is rounded corner, the chamfering side of the being chamfering of bottom.Adopt this structure, as mentioned above, can make that the material property at chamfering structure place is brought into play to greatest extent, improve the stability of the casing of the first segment arm 1 and the second joint arm 2 greatly at contact area.
Need to prove that the shape of the chamfering in the foregoing description is not limited only to above-mentioned a kind of, the chamfering side of being set to chamfering that can also above-mentioned polygonal top, the chamfering of bottom is set to rounded corner; Perhaps the chamfering on above-mentioned polygonal top, the chamfering of bottom all are set to rounded corner; Can also be with the equal side's of the being set to chamfering of the chamfering of the chamfering on above-mentioned polygonal top, bottom.Every have two horizontal sides and two vertical edges; every adjacent horizontal sides is connected by chamfering with vertical edge; and the first segment arm 1 and the second chamfering place of joint between the arm 2 are provided with guide runner 3, can improve telescopic arm in the structure of the stability of contact area all in protection domain of the present utility model.
The structure of the casing of the above-mentioned first segment arm 1 and the second joint arm 2 can also further be set.
In another kind of embodiment, as shown in Figure 6, the casing of the above-mentioned first segment arm 1 and the second joint arm 2 is the casing that upper and lower two parts are welded; And pad 4 is positioned on the relative vertical edge.Like this, the body structure of first segment arm 1, the second joint arm 2 was reduced to two long straight welds by having four long straight welds originally, and therefore the welding deformation that casing takes place in welding process is less, has further strengthened the stability of telescopic arm structure.
Need to prove that the body structure of the first segment arm 1 and the second joint arm 2 is not limited only to this a kind of structure in the foregoing description, the casing that above-mentioned casing also can be welded for left and right two parts; Its pad 4 is positioned on the relative horizontal sides.The promptly described herein nouns of locality such as " upper and lower, left and right " all is depicted as benchmark with the accompanying drawing of this paper and sets up, and the use of the noun of locality shown in should be appreciated that should not limit the scope that the application asks for protection.
In further scheme, the pad 4 of above-mentioned first segment arm 1, the second joint arm 2 can all be positioned at the mid point of vertical edge.The centre of form of cross section of this first segment arm 1 and the second joint arm 2 is the intersection point place of the center line of the center line of horizontal sides and vertical edge, when pad 4 is positioned at the mid point of vertical edge, because the joint of the body structure of the first segment arm 1 and the second joint arm 2 is near the position of form center in this cross section, the stress that the flexural stress that makes weld seam be subjected to is a shear stress when weld seam is positioned at edge.Therefore, greatly reduce the influence of welding stress, thereby strengthened the intensity of the casing of the first segment arm 1 and the second joint arm 2, reduced the risk that weld seam ftractures because of fatigue under the alternating stresses effect structural member intensity.
Need to prove; the pad 4 of the first segment arm 1 and the second joint arm 2 not only is limited in the mid point of vertical edge in the foregoing description; can also be positioned at the mid point of above-mentioned horizontal sides; can also be positioned on the above-mentioned vertical edge apart from mid point nearer above or below; can also be positioned at left side or right side nearer on the above-mentioned horizontal sides apart from mid point; every position of form center near this cross section, the body structure that can reduce the shearing force that weld seam is subjected to all should work as and be belonged to the scope that the utility model is protected.
In the scheme more specifically, the weld seam of above-mentioned pad 4 can be bevelled weld seam, promptly offer the groove of certain geometrical shape at the position to be welded of welding according to design or arts demand, can access on the thickness direction of casing steel plate of the first segment arm 1 and the second joint arm 2 all weld seams of through weldings like this, further strengthen the intensity of the casing of the first segment arm 1 and the second joint arm 2.
Need to prove; shape for groove in the above-mentioned specific embodiment does not limit; this groove shape can be I shape groove, V-butt, double V groove or U-shaped groove; every can be on the thickness direction of casing steel plate of the first segment arm 1 and the second joint arm 2 whole through weldings; the bevelled weld seam of the intensity of the casing of the further enhancing first segment arm 1 and the second joint arm 2 all should be in protection domain of the present utility model.
The utility model also provides a kind of concrete whitewashing car, comprises jib, and described jib adopts above-mentioned telescopic arm.Because above-mentioned telescopic arm has above-mentioned technique effect, therefore, comprise that the concrete whitewashing car of this telescopic arm also should have identical technique effect, do not repeat them here.
More than concrete provided by the utility model whitewashing car and telescopic arm thereof and substrate carrier plate thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. a telescopic arm comprises first segment arm (1), and is set in the described first segment arm (1) and the telescopic second joint arm (2); It is characterized in that, the cross section of described first segment arm (1), the described second joint arm (2) is polygon, described polygon comprises relative first horizontal sides (11), second horizontal sides (12), relative first vertical edge (13), second vertical edge (14) have chamfering (15) between every adjacent described horizontal sides and the described vertical edge; Chamfering place between described first segment arm (1) and the described second joint arm (2) also is provided with guide runner (3).
2. telescopic arm according to claim 1 is characterized in that, the chamfering on described polygonal top is a rounded corner, the chamfering side of the being chamfering of bottom.
3. telescopic arm according to claim 1 is characterized in that, the chamfering side of the being chamfering on described polygonal top, and the chamfering of bottom is a rounded corner.
4. telescopic arm according to claim 1 is characterized in that, the chamfering on described polygonal top, the chamfering of bottom are rounded corner.
5. telescopic arm according to claim 1 is characterized in that, the chamfering side of the being chamfering of the chamfering on described polygonal top, bottom.
6. according to each described telescopic arm of claim 1-5, it is characterized in that the casing of described first segment arm (1), the described second joint arm (2) is the casing that upper and lower two parts are welded; And pad (4) is positioned on the relative vertical edge.
7. telescopic arm according to claim 6 is characterized in that, the pad (4) of described first segment arm (1), the described second joint arm (2) all is positioned at the mid point of described vertical edge.
8. telescopic arm according to claim 6 is characterized in that, the pad (4) of described first segment arm (1), the described second joint arm (2) all is positioned at the top of the mid point of described vertical edge.
9. telescopic arm according to claim 6 is characterized in that, the weld seam of described pad (4) is bevelled weld seam.
10. a concrete whitewashing car comprises jib, it is characterized in that described jib adopts as each described telescopic arm of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206141797U CN202000675U (en) | 2010-11-18 | 2010-11-18 | Concrete gunniting cart and telescopic arm thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206141797U CN202000675U (en) | 2010-11-18 | 2010-11-18 | Concrete gunniting cart and telescopic arm thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202000675U true CN202000675U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206141797U Expired - Fee Related CN202000675U (en) | 2010-11-18 | 2010-11-18 | Concrete gunniting cart and telescopic arm thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202000675U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866983A (en) * | 2014-03-27 | 2014-06-18 | 湖南五新重型装备有限公司 | Lengthened type concrete spraying vehicle manipulator |
| CN105386601A (en) * | 2015-10-20 | 2016-03-09 | 徐工重庆工程机械有限公司 | Telescopic arm structure on laser leveling machine |
| CN106522231A (en) * | 2016-11-29 | 2017-03-22 | 湖南五新隧道智能装备股份有限公司 | Telescopic arm frame |
| CN108179881A (en) * | 2017-12-26 | 2018-06-19 | 湖南鹏翔星通汽车有限公司 | Pentagon arm support, spraying wet machine and polygon arm support production method |
-
2010
- 2010-11-18 CN CN2010206141797U patent/CN202000675U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866983A (en) * | 2014-03-27 | 2014-06-18 | 湖南五新重型装备有限公司 | Lengthened type concrete spraying vehicle manipulator |
| CN103866983B (en) * | 2014-03-27 | 2016-01-06 | 湖南五新隧道智能装备股份有限公司 | A kind of extended type concrete spraying vehicle manipulator |
| CN105386601A (en) * | 2015-10-20 | 2016-03-09 | 徐工重庆工程机械有限公司 | Telescopic arm structure on laser leveling machine |
| CN106522231A (en) * | 2016-11-29 | 2017-03-22 | 湖南五新隧道智能装备股份有限公司 | Telescopic arm frame |
| CN106522231B (en) * | 2016-11-29 | 2019-04-02 | 湖南五新隧道智能装备股份有限公司 | A kind of telescopic jib |
| CN108179881A (en) * | 2017-12-26 | 2018-06-19 | 湖南鹏翔星通汽车有限公司 | Pentagon arm support, spraying wet machine and polygon arm support production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU XUGONG SCHWING MACHINERY CO., LTD. Free format text: FORMER OWNER: BUILDING MACHINERY CO., LTD., XCMG CONSTRUCTION MACHINERY CO., LTD. Effective date: 20130613 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130613 Address after: 221004 No. 29, Peach Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee after: XCMG Schwing Machinery Co., Ltd. Address before: 221004 No. 19 Peach Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee before: Building Machinery Co., Ltd., XCMG Construction Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20191118 |