CN202731310U - Extension arm structure of shotcrete machine - Google Patents
Extension arm structure of shotcrete machine Download PDFInfo
- Publication number
- CN202731310U CN202731310U CN 201220445242 CN201220445242U CN202731310U CN 202731310 U CN202731310 U CN 202731310U CN 201220445242 CN201220445242 CN 201220445242 CN 201220445242 U CN201220445242 U CN 201220445242U CN 202731310 U CN202731310 U CN 202731310U
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- expansion coupling
- oil cylinder
- arm structure
- supporting surface
- telescopic arm
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Abstract
An extension arm structure of a shotcrete machine comprises a fixing joint. A first extension joint is arranged in the fixing extension, a second extension joint is arranged in the first extension joint, all fracture surfaces of the fixing joint, the first extension joint and the second extension joint are heptagons, upper portions of the heptagons are inversed-V-shaped supporting surfaces, the lower portions of the heptagons are positive-V-shaped supporting surfaces with notches, and a combined oil cylinder is further installed in the first extension joint. The extension arm structure has the advantages of being simple in structure, good in stress condition, light in weight and low in manufacture cost.
Description
Technical field
The utility model relates to a kind of concrete sprayer, is specifically related to a kind of telescopic arm structure of concrete sprayer.
Background technology
At present, the section configuration of all concrete sprayer telescopic arms all is tetragonal structure basically, and telescopic arm all is that a joint is flexible.Because tetragonal telescopic arm only has upper and lower two sides stressed in the course of the work, stress condition is more abominable, when in large tunnel cross-section, working, if a joint telescopic arm only is set, what telescopic arm will be done so is very long, jib longer in the work engineering degree of disturbing of jib just larger, also just larger to the harm of jib; If save telescopic arms and arrange two, will be complicated more on the structure, also can increase the weight of whole boom system, cause jib when stretching motion, to consume too much power.
The utility model content
Technical problem to be solved in the utility model provide a kind of simple in structure, stress condition good, the telescopic arm structure of the concrete sprayer of lightweight, low cost of manufacture.
For solving the problems of the technologies described above, the technical scheme that the telescopic arm structure of a kind of concrete sprayer of the present utility model adopts is: comprise being provided with the first expansion coupling in the fixed knot, in the first expansion coupling, be provided with the second expansion coupling, the section of fixed knot and first, second expansion coupling is heptagon, be the supporting surface of falling V on heptagonal top, the heptagon bottom is the positive V-arrangement supporting surface of unfilled corner, and combined oil cylinder also is installed in the first expansion coupling.
Preferably, with the inverted V-shaped supporting surface phase sliding-contact on first, second expansion coupling heptagon section top be the friction plate with antifriction function, this friction plate is connected to the inboard of the top inverted V-shaped supporting surface of corresponding fixed knot or the first expansion coupling.
Preferably, the roller that is arranged on fixed knot and the first expansion coupling end downside that contacts with rolling with first, second expansion coupling heptagon section bottom positive V-arrangement supporting surface that is unfilled corner.
Preferably, the both end sides of roller is provided with symmetrical positive stop lug boss.
Preferably, the combined oil cylinder that is installed in the first expansion coupling is parallel oil cylinder.
Preferably, parallel oil cylinder comprises reverse parallel connection two double acting telescopic oil cylinders together, and parallel oil cylinder is connected in the first expansion coupling, and the piston rod of reverse parallel connection two double acting telescopic oil cylinders together is articulated in respectively fixed knot and the second expansion coupling.
Preferably, parallel oil cylinder is the linkage work pattern.
The technique scheme of the telescopic arm structure of a kind of concrete sprayer of the present utility model can be brought following beneficial effect with respect to prior art;
1, because the section of fixed knot and first, second expansion coupling is heptagon, be the supporting surface of falling V on heptagonal top, the heptagon bottom is the positive V-arrangement supporting surface of unfilled corner, during work the supporting surface of falling V and be unfilled corner positive V-arrangement supporting surface totally three supporting surfaces support, therefore stress condition is better, and, the positive V-arrangement supporting surface of unfilled corner adopts the roller with positive stop lug boss to support, the positive stop lug boss of the both end sides of roller can block on the inclined-plane on positive V-arrangement supporting surface both sides of unfilled corner, thus guide effect and stabilization when having improved the first and second expansion coupling stretching motions.
2, because the parallel oil cylinder of combination being installed in the first expansion coupling, this parallel oil cylinder comprises that the piston rod of reverse parallel connection two double acting telescopic oil cylinders together is articulated in respectively fixed knot and the second expansion coupling.Adopt parallel oil cylinder, a telescopic oil cylinder has been installed with respect to tradition just can have been realized the flexible of the first and second expansion couplings, therefore simplified mounting structure, alleviated weight, reduced manufacturing cost.Because adopting two joint expansion couplings, with respect to a joint expansion coupling, increased brachium, the corresponding flexible working space that has strengthened arm.
3, in addition, with two inverted V-shaped supporting surface phases sliding-contact on first, second expansion coupling heptagon section top be the friction plate with antifriction function, described friction plate is connected to the inboard of the top inverted V-shaped supporting surface of corresponding described fixed knot or the first expansion coupling, the roller that is arranged on fixed knot and the first expansion coupling end downside band positive stop lug boss that contacts with rolling with the disconnected basifacial supporting surface of first, second expansion coupling heptagon, effect because of friction plate and roller, can greatly reduce the resistance of expansion coupling stretching motion, reduce power consumption.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is that the telescopic arm structure of a kind of concrete sprayer of the present utility model is put schematic diagram;
Fig. 2 be among Fig. 1 along A-A to the sectional view schematic diagram;
Fig. 3 be among Fig. 1 along B-B to the sectional view schematic diagram: and
Fig. 4 is the structural representation of parallel oil cylinder.
The specific embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Referring to Fig. 1, the telescopic arm structure embodiment of a kind of concrete sprayer of the present utility model, comprise fixed knot 1, be installed in the first expansion coupling 4 in the fixed knot 1, be installed in the second expansion coupling 5 in the first expansion coupling 4, and be installed in telescopic oil cylinder 3 and the roller 2 that supports the first expansion coupling and the second expansion coupling in the first expansion coupling 4.
In conjunction with referring to Fig. 2 and Fig. 3, the section configuration of fixed knot 1, the first expansion coupling 4, the second expansion coupling 5 all is heptagons, on this heptagonal top, is an inverted V-arrangement supporting surface, in this heptagonal bottom, is the positive V-arrangement supporting surface of a unfilled corner.Relevant position, heptagonal top in the end of fixed knot 1 and the first expansion coupling 4, be separately installed with antifriction plate 10, wherein the antifriction plate 10 of fixed knot installation contacts with the inverted V-arrangement supporting surface of the first expansion coupling 4 to form and is slidingly connected, and the antifriction plate 10 that the first expansion coupling 4 is installed contacts with the inverted V-arrangement supporting surface of the second expansion coupling 5 to form and is slidingly connected.
Relevant position in the heptagonal bottom of the end of fixed knot 1 and the first expansion coupling 4, be separately installed with roller 2, the both end sides of roller 2 is provided with symmetrical positive stop lug boss, this positive stop lug boss can block on the inclined-plane on positive V-arrangement supporting surface both sides of unfilled corner can prevent the expansion coupling double swerve, wherein the roller 2 of fixed knot installation forms to roll with the positive V-arrangement supporting surface of the unfilled corner of the first expansion coupling 4 bottoms and is connected, and the roller 2 that the first expansion coupling 4 is installed forms rolling with the positive V-arrangement supporting surface of the unfilled corner of the second expansion coupling 5 bottoms and is connected.
Referring to Fig. 1 and Fig. 4, in the first expansion coupling 4, be installed with combined oil cylinder 3, combined oil cylinder 3 is parallel oil cylinders, this parallel oil cylinder comprises that reverse parallel connection two double acting telescopic oil cylinders 31,32 together form.Two double acting telescopic oil cylinders 31,32 adopt the mode of operations of interlock, two oily double acting telescopic oil cylinders 31,32 motion of can stretching simultaneously or contract when namely working.
Be provided with engaging lug seat 311 with holes at each double acting telescopic oil cylinder 31,32 head, at each double acting telescopic oil cylinder 31,32 afterbody with the hole of shipping and reselling on another market, its head, tail 6 connect (to be double acting telescopic oil cylinder 31 heads ear seat 311 with holes be connected by bearing pin 6 with the afterbody of double acting telescopic oil cylinder 32 hole of shipping and reselling on another market, and the head of while double acting telescopic oil cylinder 32 ear seat 311 with holes and the afterbody of double acting telescopic oil cylinder 31 hole of shipping and reselling on another market is connected by bearing pin 6) formation overall structure mutually by shipping and reselling on another market.
Also be provided with one at the afterbody of double acting telescopic oil cylinder 31 and add screech owl seat 312, this adds screech owl seat 312 by 8 tail of cavity body that are articulated in the first expansion coupling 4 of shipping and reselling on another market.Two double acting telescopic oil cylinders 31,32 piston rod 6 are connected in the second expansion coupling 5 and fixed knot 1 by shipping and reselling on another market respectively.When oil cylinder 3 action, drive respectively expansion coupling 4 and expansion coupling 5 and stretch out synchronously or shrink.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. the telescopic arm structure of a concrete sprayer, comprise and be provided with the first expansion coupling in the fixed knot, in the first expansion coupling, be provided with the second expansion coupling, it is characterized in that, the section of described fixed knot and first, second expansion coupling is heptagon, be the supporting surface of falling V on described heptagonal top, described heptagon bottom is the positive V-arrangement supporting surface of unfilled corner, in described the first expansion coupling combined oil cylinder is installed also.
2. the telescopic arm structure of concrete sprayer according to claim 1, it is characterized in that, with the inverted V-shaped supporting surface phase sliding-contact on described first, second expansion coupling heptagon section top be the friction plate with antifriction function, described friction plate is connected to the inboard of the top inverted V-shaped supporting surface of corresponding described fixed knot or the first expansion coupling.
3. the telescopic arm structure of concrete sprayer according to claim 1, it is characterized in that the roller that is arranged on fixed knot and the first expansion coupling end downside that contacts with rolling with described first, second expansion coupling heptagon section bottom positive V-arrangement supporting surface that is unfilled corner.
4. the telescopic arm structure of concrete sprayer according to claim 3 is characterized in that, the both end sides of described roller is provided with symmetrical positive stop lug boss.
5. the telescopic arm structure of concrete sprayer according to claim 1 is characterized in that, the described combined oil cylinder that is installed in the first expansion coupling is parallel oil cylinder.
6. the telescopic arm structure of concrete sprayer according to claim 5, it is characterized in that, described parallel oil cylinder comprises reverse parallel connection two double acting telescopic oil cylinders together, described parallel oil cylinder is connected in described the first expansion coupling, and the piston rod of described reverse parallel connection two double acting telescopic oil cylinders together is articulated in respectively fixed knot and the second expansion coupling.
7. according to claim 5 or the telescopic arm structure of 6 described concrete sprayers, it is characterized in that, described parallel oil cylinder is the linkage work pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220445242 CN202731310U (en) | 2012-09-04 | 2012-09-04 | Extension arm structure of shotcrete machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220445242 CN202731310U (en) | 2012-09-04 | 2012-09-04 | Extension arm structure of shotcrete machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202731310U true CN202731310U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220445242 Expired - Fee Related CN202731310U (en) | 2012-09-04 | 2012-09-04 | Extension arm structure of shotcrete machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202731310U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863618A (en) * | 2015-06-11 | 2015-08-26 | 中国铁建重工集团有限公司 | Small concrete sprayer |
| CN105421784A (en) * | 2015-11-30 | 2016-03-23 | 河南省耿力工程设备有限公司 | Heptagon telescopic arm and concrete support guniting trolley |
| CN105464682A (en) * | 2015-12-23 | 2016-04-06 | 湖南五新隧道智能装备股份有限公司 | Concrete guniting vehicle and telescopic arm thereof |
| CN106640140A (en) * | 2017-01-05 | 2017-05-10 | 陕西理工学院 | Variable-span concrete lining steel form trolley |
| CN106948838A (en) * | 2017-04-07 | 2017-07-14 | 安徽佳乐建设机械有限公司 | A kind of wet shot chassis arm support |
-
2012
- 2012-09-04 CN CN 201220445242 patent/CN202731310U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863618A (en) * | 2015-06-11 | 2015-08-26 | 中国铁建重工集团有限公司 | Small concrete sprayer |
| CN105421784A (en) * | 2015-11-30 | 2016-03-23 | 河南省耿力工程设备有限公司 | Heptagon telescopic arm and concrete support guniting trolley |
| CN105464682A (en) * | 2015-12-23 | 2016-04-06 | 湖南五新隧道智能装备股份有限公司 | Concrete guniting vehicle and telescopic arm thereof |
| CN106640140A (en) * | 2017-01-05 | 2017-05-10 | 陕西理工学院 | Variable-span concrete lining steel form trolley |
| CN106948838A (en) * | 2017-04-07 | 2017-07-14 | 安徽佳乐建设机械有限公司 | A kind of wet shot chassis arm support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Panpan economic and Technological Development Zone of Hunan province Changsha City Road 410100 18-1 Patentee after: HUNAN WUXIN TUNNEL INTELLIGENT EQUIPMENT CO., LTD. Address before: 410100 Hunan Province Economic and Technological Development Zone Changsha Panpan Road No. 18-1 Patentee before: Hunan Wuxin Heavy Equipment 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: 20130213 Termination date: 20200904 |