CN202138266U - Cantilever crane type engineering machine and telescopic boom thereof - Google Patents
Cantilever crane type engineering machine and telescopic boom thereof Download PDFInfo
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- CN202138266U CN202138266U CN201120220752U CN201120220752U CN202138266U CN 202138266 U CN202138266 U CN 202138266U CN 201120220752 U CN201120220752 U CN 201120220752U CN 201120220752 U CN201120220752 U CN 201120220752U CN 202138266 U CN202138266 U CN 202138266U
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- arm body
- telescopic boom
- boom
- joint arm
- construction machinery
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Abstract
The utility model discloses a telescopic boom of a cantilever crane type engineering machine, comprising a main boom body (1) arranged on a car body of the cantilever crane type engineering machine, a gear mechanism (5), and locking parts, wherein at least one section of boom body is arranged in the main boom body (1); the gear mechanism (5) drives the boom body to stretch out and draw back; the telescopic boom further comprises the locking part which is used for locking or unlocking the main boom body with the boom body adjacent to the main boom body and/or the working positions of the two adjacent boom bodies; and the stretching out and drawing back of the telescopic boom is realized by the gear mechanism (5) instead of a hydraulic cylinder. The self weight of the gear mechanism is smaller than the self weight of the hydraulic cylinder with the same driving force, and the self weight of the telescopic boom can be reduced by not using the hydraulic cylinder to drive; as the manufacturing cost of the gear mechanism (5) is lower, the using cost is saved; and as the locking parts are used for locking the boom bodies, the working reliability of the telescopic boom can be ensured. In addition, the utility model also provides the cantilever crane type engineering machine comprising the telescopic cantilever.
Description
Technical field
The utility model relates to the telescopic boom technical field, particularly a kind of telescopic boom of boom type construction machinery and equipment.In addition, the utility model also relates to the boom type construction machinery and equipment that comprises above-mentioned telescopic boom.
Background technology
Along with development of economic construction, the telescopic boom construction machinery and equipment skyscraper economic construction field that is applied to more and more widely.
The telescopic boom of telescopic boom construction machinery and equipment is the core component of construction machinery and equipment, and it is the most important load-bearing structural member of construction machinery and equipment lifting operation; Telescoping mechanism is the critical component of telescopic boom, and it is restricting the flexible and lift heavy load-carrying capacity of principal arm.
In the prior art; The principal arm telescoping mechanism mainly contains oil cylinder and adds rope row's formula telescoping mechanism and two kinds of patterns of single cylinder bolt-type telescoping mechanism; Oil cylinder adds rope row formula telescoping mechanism and is mainly used in medium and small tonnage hoisting crane; Its feature is that the last joint telescopic boom adopts steel rope flexible, and other telescopic booms joints adopt that multistage cylinders and single-stage cylinder sleeve are used etc., and mode directly realizes that with hydraulic ram it stretches.
The single cylinder bolt-type telescoping mechanism is an a kind of representative type mechanical-electrical-hydraulic integration system; It mainly comprises telescoping cylinder, the mechanism of pulling pin, cylinder pin; For safety, the reliability that guarantees the telescopic boom telescopic process, this mechanism adopt built-in interlock system promptly on telescopic oil cylinder shock mount driving cylinder lock decide telescopic boom.
But; No matter be that oil cylinder adds rope row's formula telescoping mechanism or single cylinder bolt-type telescoping mechanism; Be the expanding-contracting action of realizing telescopic boom through the hydraulic ram that uses certain specification, especially the load-carrying ability of construction machinery and equipment is big more, and the specification of the telescopic oil cylinder that corresponding telescopic boom is required is also just big more; The telescopic oil cylinder specification is big more, and its weight is also just heavy more.
Parameters such as the weight of telescopic boom, intensity, rigidity will directly influence construction machinery and equipment working ability and in-use performance; Especially the weight parameter of telescopic boom; The weight of the telescopic boom of construction machinery and equipment generally accounts for 13% to 20% of complete machine at present; The weight of telescopic boom is heavy more, and the job stabilization of construction machinery and equipment is poor more, and operational capability is poor more.
Therefore, how a kind of telescopic boom is provided, the weight of this telescopic boom is low weight, improve the lifting ability of construction machinery and equipment, and functional reliability is the present technical issues that need to address of those skilled in the art than higher.
The utility model content
The purpose purport of the utility model is the telescopic boom that a kind of boom type construction machinery and equipment is provided, and the weight of this telescopic boom is low weight, and functional reliability is than higher.In addition, another purpose purport of the utility model is that a kind of boom type construction machinery and equipment that comprises telescopic boom is provided.
For solving the problems of the technologies described above, the utility model provides a kind of telescopic boom of boom type construction machinery and equipment, comprises the principal arm body on the car body of being located at said boom type construction machinery and equipment, is provided with a joint arm body in the said principal arm body at least; Also comprise driving the flexible gear mechanism of each said arm body, and said telescopic boom also comprises the said arm body that locking or the said principal arm body of release are adjacent, and/or the locking member of adjacent two said arm body running positions.
Preferably, the gear of said gear mechanism is arranged between said principal arm body and the said arm body and/or between the two said arm bodies, is arranged at said arm body or/and on the sidewall of said principal arm body with said gear mating teeth groove.
Preferably; Said telescopic boom has four joint arm bodies; Said gear is arranged between the second joint arm body and the 3rd joint arm body, and the inwall and the said the 3rd that said teeth groove is arranged at the said second joint arm body saves on the outer wall of arm body, and the opening size of the aft end face of the second joint arm body is greater than the aft end face size of said the 3rd joint arm body; And the front end face of the 4th joint arm body is provided with outside kink, and the size of said kink is greater than the distance between said second joint arm body and said the 4th joint arm body.
Preferably, the front end face of the said second joint arm body is provided with outside bending part, and the size of said bending part is greater than the distance between said second joint arm body and the said principal arm body.
Preferably, said gear mechanism is the bidentate wheel mechanism that comprises two gears, and two said gears are symmetrically arranged in the both lateral sides of the second joint arm body and the 3rd joint arm body.
Preferably, said locking member is the latch that is arranged on the said arm body.
Preferably, said latch is the hydraulic drive type plugging pin oil cylinder.
The utility model also provides a kind of telescopic boom construction machinery and equipment, comprises car body and is connected in the telescopic boom on the said car body, and said telescopic boom is above any described telescopic boom.
The telescopic boom of the boom type construction machinery and equipment that the utility model provides; Comprise the principal arm body on the car body of being located at said boom type construction machinery and equipment; At least be provided with a joint arm body in the principal arm body; Also comprise driving the flexible gear mechanism of each arm body, and said telescopic boom also comprises the said arm body that locking or the said principal arm body of release are adjacent, and/or the locking member of adjacent two said arm body running positions.
Compared with prior art; The flexible dependence gear mechanism of telescopic boom rather than through hydraulic ram, the deadweight of the gear mechanism of equal propulsive effort be less than the deadweight of hydraulic ram, and do not use hydraulic oil to drive; Can reduce the deadweight of telescopic boom; And the manufacturing cost of gear mechanism is lower, saves use cost, and uses Lock Part can guarantee the reliability of telescopic boom work to each telescopic boom locking.
A kind of preferred embodiment in; Said telescopic boom has four joint arm bodies; Said gear is arranged between the second joint arm body and the 3rd joint arm body; The inwall and the said the 3rd that said teeth groove is arranged at the said second joint arm body saves on the outer wall of arm body; And the opening size of the aft end face of the second joint arm is greater than the aft end face size of said the 3rd joint arm body, and the front end face of the 4th joint arm body is provided with outside kink, the distance that the size of said kink saves between the arm body greater than the said second joint arm body and the said the 4th.
When respectively the saving the arm body and stretch out operation of telescopic boom; At first the gear mechanism driven wheel clockwise rotates; Gear will drive the second joint arm body motion; The second joint arm body will outwards trail, and the size that is used for the bending part of the 4th joint arm body simultaneously saves the distance that arm body and the 4th saves between the arm body greater than second, also will drive the 4th joint arm body in the time of the second joint arm body motion and move together; After the second joint arm body full extension is opened, use corresponding Lock Part respectively with principal arm body and the second joint arm body, the 3rd joint arm body and the 4th joint arm body locking; Driven wheel rotates counterclockwise then, and the 3rd joint arm body slowly trails the relative second joint arm body, and when moving to correct position, the locking second joint arm body and the 3rd saves the position of arm body, thereby accomplishes the stretching, extension of telescopic boom.
When telescopic boom is finished the work, during withdrawal, need only operation locking member and gear mechanism and carry out launching opposite operation with the arm body.
This structure design is ingenious, only a gear mechanism need be set in telescopic arm structure, can accomplish the stretching of three joint arm bodies, further reduced the weight of telescopic boom, and reliability is than higher.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of the telescopic boom that the utility model provided;
Fig. 2 is the simplified structure scheme drawing of telescopic boom shown in Figure 1;
Fig. 3 is the view of each arm body after the second joint arm body full extension of telescopic boom shown in Figure 1;
Fig. 4 is the connection scheme drawing of each arm body before the 3rd joint arm body of telescopic boom shown in Figure 1 stretches;
Fig. 5 is in the view of each arm joint in the stretching process for the 3rd joint arm body of telescopic boom shown in Figure 1;
View when Fig. 6 is in full extension for telescopic boom shown in Figure 1.
Wherein, the corresponding relation between Reference numeral and the component names is among Fig. 1 to Fig. 6:
1 principal arm body; 2 second joint arm bodies; 21 bending parts; 3 the 3rd joint arm bodies; 4 the 4th joint arm bodies; 41 kinks; 5 gear mechanisms; 51 gears; 52 teeth groove; 53 ring-type erecting frames; 6 latches; 7 pin holes.
The specific embodiment
The core purport of the utility model is the telescopic boom that a kind of boom type construction machinery and equipment is provided, and the weight of this telescopic boom is low weight, and functional reliability is than higher.In addition, another core purport of the utility model is that a kind of boom type construction machinery and equipment that comprises above-mentioned telescopic boom is provided.
In order to make those skilled in the art understand the technical scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of specific embodiment of the telescopic boom that the utility model provided.
The telescopic boom of the boom type construction machinery and equipment that the utility model provides; Comprise the principal arm body 1 on the car body of being located at said boom type construction machinery and equipment; At least be provided with a joint arm body in the principal arm body 1; Also comprise driving the flexible gear mechanism 5 of each arm body, and said telescopic boom also comprises the said arm body that locking or release principal arm body 1 are adjacent, and/or the locking member of adjacent two said arm body running positions.
Compared with prior art; The flexible dependence gear mechanism 5 of telescopic boom rather than through hydraulic ram, the deadweight of the gear mechanism of equal propulsive effort be less than the deadweight of hydraulic ram, and do not use hydraulic oil to drive; Can reduce the deadweight of telescopic boom; And the manufacturing cost of gear mechanism 5 is lower, saves use cost, and uses Lock Part can guarantee the reliability of telescopic boom work to each telescopic boom locking.
In a kind of concrete embodiment; The gear 51 of gear mechanism 5 can be arranged between principal arm body 1 and the arm body and/or between the two arm bodies; The set-up mode of gear 51 can be by various ways, and for example gear 51 can be fixed type, promptly is fixed on a certain arm body; Also can be for movable, promptly can and each arm body between the position can be movable; Be arranged at the arm body or/and on the sidewall of principal arm body with gear 51 mating teeth grooves 52.
Need to prove; Not only be confined to set-up mode described herein with the set-up mode of gear 51 mating teeth grooves 52; On the sidewall that is arranged at the arm body that can also be indirect; For example make rack-plate separately, rack-plate is installed on the sidewall of arm body, can reduce the used thickness of arm body like this.
Comprise that with telescopic boom four joint arm bodies are example below, specifically introduce the set-up mode of gear mechanism 5, personnel should be appreciated that and also not get rid of the application of gear mechanism 5 in other joint arm bodies in this area.
Please refer to Fig. 2 to Fig. 6, Fig. 2 is the simplified structure scheme drawing of telescopic boom shown in Figure 1; Fig. 3 is the view of each arm body after the second joint arm body full extension of telescopic boom shown in Figure 1; Fig. 4 is the connection scheme drawing of each arm body before the 3rd joint arm body of telescopic boom shown in Figure 1 stretches; Fig. 5 is in the view of each arm joint in the stretching process for the 3rd joint arm body of telescopic boom shown in Figure 1; View when Fig. 6 is in full extension for telescopic boom shown in Figure 1.
In a kind of concrete embodiment; Telescopic boom comprises four joint arm bodies; Principal arm body 1, second saves arm body 2, the 3rd joint arm body 3 and the 4th joint arm body 4 and is nested in the former inside successively; Gear is arranged between the second joint arm body 2 and the 3rd joint arm body 3, and the inwall and the 3rd that teeth groove 52 is arranged at the said second joint arm body 2 saves on the outer wall of arm body 3, and the opening size of the aft end face of the second joint arm body 2 is greater than the aft end face size of the 3rd joint arm body 3; And the front end face of the 4th joint arm body 4 is provided with outside kink 41, and the size of kink 41 is greater than the distance between the second joint arm body 2 and the 4th joint arm body 4.
Need to prove, will be defined as cross-sectional plane perpendicular to the cross section of telescopic boom direction of extension among this paper, outside the direction of pointing to principal arm bodies 1 by the 4th joint arm body 4 on the cross-sectional plane is.
When respectively the saving the arm body and stretch out operation of telescopic boom; As shown in Figures 2 and 3; At first gear mechanism 5 driven wheels 51 clockwise rotate, and gear will drive 2 motions of the second joint arm body, and the second joint arm body 2 will outwards trail; The size that is used for the bending part 21 of the 4th joint arm body 4 simultaneously saves the distance that arm body 2 and the 4th saves between the arm body 4 greater than second; The second joint arm body 2 also will drive 4 motions together of the 4th joint arm body when moving, after the second joint arm body, 2 full extension are opened, use corresponding Lock Part respectively the principal arm body 1 and the second joint arm body the 2, the 3rd to be saved arm body 3 and 4 lockings of the 4th joint arm body; Driven wheel 51 rotates counterclockwise then; Like Fig. 4, Fig. 5 and shown in Figure 6, the 3rd joint arm body 3 slowly trails the relative second joint arm body 2, when moving to correct position; The position of locking second joint arm body 2 and the 3rd joint arm body 3, thereby the stretching, extension of completion telescopic boom.
When telescopic boom is finished the work, during withdrawal, need only operation locking member and gear mechanism 5 and carry out launching opposite operation with the arm body.
This structure design is ingenious, only a gear mechanism 5 need be set in telescopic arm structure, can accomplish the stretching of three joint arm bodies, further reduced the weight of telescopic boom, and reliability is than higher.
It is emphasized that; The conter clockwise of said gear and to clockwise rotate be to be reference with the position of gear in Fig. 2 to Fig. 6; Just for simplicity of exposition; Be convenient to those skilled in that art's understanding, should be appreciated that the vocabulary of expression direction used herein should not limit the protection domain of this patent.
Further; The front end face of the second joint arm body 2 also can be provided with outside bending part 21; The size of bending part 21 is greater than the distance between the second joint arm body 2 and the principal arm body 1; The effect that bending part 21 can play motion positions is set, and the area of contact when also having increased simultaneously the second joint arm body 2 and 4 withdrawals of the 4th joint arm body helps reducing collision deformation.
Further; Gear mechanism 5 can be for comprising the bidentate wheel mechanism 5 of two gears; Two said gears are symmetrically arranged in the both lateral sides of the second joint arm body 2 and the 3rd joint arm body 3; Promptly on cross-sectional plane, be symmetrically distributed, correspondingly, the relevant position of the lateral wall of the madial wall of the second joint arm body 2 and the 3rd joint arm body 3 is provided with teeth groove 52.
Use the bidentate wheel drive and be symmetrically distributed in the both sides of two arm bodies, help that the arm body stretches and contractile motion steadily, and the arm body of telescopic boom is stressed more even, increases the service life.
Particularly, the set-up mode of two gears can adopt following structure in the bidentate wheel mechanism 5.
Can also comprise ring-type erecting frame 53 in the gear mechanism 5; Two gears 51 are installed on respectively on the ring-type erecting frame 53; Two gears 51 are installed on the synchronism that helps 51 motions of two gears on the ring-type erecting frame 53; Avoid two gears 51 to rotate of the wearing and tearing of different speed, in the service life of having improved gear 51 and arm body, save use cost gear 51 and teeth groove 52.
Locking member among above-mentioned each embodiment can be latch 6; Latch 6 the position being set deciding according to the driving particular case of gear mechanism 5 on jib; For example on above-mentioned four joint arm bodies; The relevant position that the leading section that saves arm body 3 at the middle part and the 3rd of principal arm body 1 is provided with latch 6, the second joint arm bodies 2 and the 4th joint arm body 4 is provided with pin hole 7; Latch 6 is simple in structure, and locking is reliable.
Further, above-mentioned latch 6 can be the hydraulic drive type plugging pin oil cylinder, and hydraulic-driven is more steady, and uses fluid control to help realizing Automation of construction macninery control.
Locking member also can be parts such as rim lock, bolt.
Except that above-mentioned telescopic boom, the utility model also provides a kind of boom type construction machinery and equipment, comprises car body and is connected in the telescopic boom on the said car body, and this telescopic boom is above each described telescopic boom.
Because this boom type construction machinery and equipment has comprised above-described telescopic boom, its also corresponding technique effect with this telescopic boom, in addition, the technical characterictic of other parts of this boom type construction machinery and equipment can repeat no more at this referring to prior art.
More than a kind of boom type construction machinery and equipment and telescopic boom thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.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 (8)
1. the telescopic boom of a boom type construction machinery and equipment comprises the principal arm body (1) on the car body of being located at said boom type construction machinery and equipment, is provided with a joint arm body in the said principal arm body (1) at least; It is characterized in that, also comprise driving the flexible gear mechanism (5) of each said arm body, and said telescopic boom also comprises the said arm body that locking or the said principal arm body of release (1) are adjacent, and/or the locking member of adjacent two said arm body running positions.
2. the telescopic boom of boom type construction machinery and equipment according to claim 1; It is characterized in that; The gear (51) of said gear mechanism (5) is arranged between said principal arm body (1) and the said arm body and/or between the two said arm bodies, is arranged at said arm body or/and on the sidewall of said principal arm body (1) with said gear (51) mating teeth groove (52).
3. the telescopic boom of boom type construction machinery and equipment according to claim 2; It is characterized in that; Said telescopic boom has four joint arm bodies; Said gear is arranged between the second joint arm body (2) and the 3rd joint arm body (3), and the inwall and the said the 3rd that said teeth groove is arranged at the said second joint arm body (2) saves on the outer wall of arm body (3), and the opening size of the aft end face of the second joint arm body (2) is greater than the aft end face size of said the 3rd joint arm body (3); And the front end face of the 4th joint arm body (4) is provided with outside kink (41), and the size of said kink (41) is greater than the distance between said second joint arm body (2) and said the 4th joint arm body (4).
4. the telescopic boom of boom type construction machinery and equipment according to claim 3; It is characterized in that; The front end face of the said second joint arm body (2) is provided with outside bending part (21), and the size of said bending part (21) is greater than the distance between said second joint arm body (2) and the said principal arm body (1).
5. the telescopic boom of boom type construction machinery and equipment according to claim 4; It is characterized in that; Said gear mechanism (5) is the bidentate wheel mechanism (5) that comprises two said gears (51), and two said gears (51) are symmetrically arranged in the both lateral sides that the second joint arm body (2) and the 3rd saves arm body (3).
6. according to the telescopic boom of each described boom type construction machinery and equipment of claim 1 to 5, it is characterized in that said locking member is the latch (6) that is arranged on the said arm body.
7. the telescopic boom of boom type construction machinery and equipment according to claim 6 is characterized in that, said latch is the hydraulic drive type plugging pin oil cylinder.
8. a boom type construction machinery and equipment comprises car body and is connected in the telescopic boom on the said car body, it is characterized in that said telescopic boom is each described telescopic boom of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120220752U CN202138266U (en) | 2011-06-27 | 2011-06-27 | Cantilever crane type engineering machine and telescopic boom thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120220752U CN202138266U (en) | 2011-06-27 | 2011-06-27 | Cantilever crane type engineering machine and telescopic boom thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202138266U true CN202138266U (en) | 2012-02-08 |
Family
ID=45549342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120220752U Expired - Fee Related CN202138266U (en) | 2011-06-27 | 2011-06-27 | Cantilever crane type engineering machine and telescopic boom thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202138266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332963A (en) * | 2018-12-19 | 2020-06-26 | 西法股份公司 | Telescopic boom for crane and crane comprising telescopic boom |
-
2011
- 2011-06-27 CN CN201120220752U patent/CN202138266U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332963A (en) * | 2018-12-19 | 2020-06-26 | 西法股份公司 | Telescopic boom for crane and crane comprising telescopic boom |
| CN111332963B (en) * | 2018-12-19 | 2024-04-16 | 西法股份公司 | Telescopic boom for crane and crane comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20140627 |
|
| EXPY | Termination of patent right or utility model |