CN203794512U - Extension and retraction driving device for multi-section boom - Google Patents
Extension and retraction driving device for multi-section boom Download PDFInfo
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- CN203794512U CN203794512U CN201420136887.2U CN201420136887U CN203794512U CN 203794512 U CN203794512 U CN 203794512U CN 201420136887 U CN201420136887 U CN 201420136887U CN 203794512 U CN203794512 U CN 203794512U
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- changed course
- jib
- course roller
- moving
- steel rope
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Abstract
The utility model discloses an extension and retraction driving device for a multi-section boom. The device comprises a steel wire rope, driving rollers arranged on a foundation boom and redirection roller trains arranged on the foundation boom and each section of the extensible boom, wherein a locking device and a tensioning device are arranged on the foundation boom; the starting end of the steel wire rope is connected with the locking device, and is connected with the tensioning device after being sequentially wound on the redirection roller trains and the driving rollers; the redirection roller trains are driven by the steel wire rope to drive each section of the extensible boom to extend when the driving rollers are started to rotate forwards, and are driven by the steel wire rope to drive each section of the extensible boom to retract when the driving rollers are started to rotate reversely. The device has the advantages of simple structure, convenience in operation and low energy consumption.
Description
Technical field
The utility model relates generally to conveying engineering apparatus field, relates in particular to a kind of retractable driving device for more piece jib.
Background technology
Telescopic boom because its structure itself possesses good load-carrying capacity, and possesses longer operation distance and higher operation height, and in engineering practice, has obtained using widely under the load condition allowing.
In prior art, when telescopic boom is multi-joint telescoping, a plurality of hydraulic actuating cylinders of general employing are realized sequentially-operating, and it is flexible that each hydraulic actuating cylinder is controlled single-unit, this structure, owing to there being a plurality of propulsions source, its structural arrangement is comparatively complicated, and energy consumption is high, and, the concertedness that a plurality of propulsions source drive is not high, must be even through the speed of debugging guarantee multi-stage telescopic arms repeatedly.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, easy to operate, retractable driving device for more piece jib that energy consumption is low is provided.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of retractable driving device for more piece jib, comprise steel rope, be installed in the driving rolls on basic jib and be installed in basic jib and Ge Jie telescopic jib on changed course roller set, on described basic jib, be equiped with latching device and tightening device, the initiating terminal of described steel rope connects with latching device, and be connected with tightening device after being wound in successively changed course roller set and driving rolls, while starting driving rolls forward, described steel rope orders about the drive of changed course roller set and respectively saves telescopic jib stretching, extension, while starting driving rolls reversion, described steel rope orders about the drive of changed course roller set and respectively saves telescopic jib contraction.
Further improvement as technique scheme:
Described changed course roller set comprises the fixedly changed course roller being installed on basic jib and is installed in the moving changed course roller respectively saving on telescopic jib, described steel rope is reeled and is connected with the moving changed course roller on each joint telescopic jib through fixing changed course roller, while starting driving rolls forward, described steel rope orders about the drive of moving changed course roller and respectively saves telescopic jib stretching, extension, during the reversion of startup driving rolls, described steel rope orders about the drive of moving changed course roller and respectively saves telescopic jib contraction.
Described moving changed course roller comprises the first moving changed course roller and the second moving changed course roller, the second moving changed course roller on each joint telescopic jib is reeled and is connected with the first moving changed course roller on next joint telescopic jib by steel rope, while starting driving rolls forward, described steel rope orders about the first moving changed course roller drive and respectively saves telescopic jib stretching, extension, during the reversion of startup driving rolls, described steel rope orders about the second moving changed course roller drive and respectively saves telescopic jib contraction.
Described fixedly changed course roller is provided with four, take two as one group of two ends that are arranged symmetrically in the both sides of flexible axis and are divided into basic jib, each two ends of saving telescopic jib are equipped with two first moving changed course rollers and the second moving changed course roller and are arranged symmetrically in the both sides of flexible axis, on first joint telescopic jib, be also provided with the 3rd moving changed course roller for connecting with two fixing changed course rollers of basic jib head end, two fixing changed course rollers of the second moving changed course roller and basic jib head end of minor details telescopic jib connect.
Described tightening device comprises tensioning plate, fixed hinged seat and locking bearing pin, on described tensioning plate, is evenly equipped with pin-and-hole, and described steel rope is connected with tensioning plate, and described locking bearing pin is fastenedly connected with fixed hinged seat through after pin-and-hole.
Compared with prior art, the utility model has the advantage of:
Retractable driving device for more piece jib of the present utility model, comprise steel rope, be installed in the driving rolls on basic jib and be installed in basic jib and Ge Jie telescopic jib on changed course roller set, on the jib of basis, be equiped with latching device and tightening device, it is simple in structure, easy to operate, only the initiating terminal of steel rope and latching device need be connected and fixed, and be connected with tightening device after being wound in successively changed course roller set and driving rolls, can complete the installation of this actuating device, this tightening device makes steel rope all the time in tensioning state, assurance there will not be idle running phenomenon, in this structure, only by steel cable by changed course roller set changed course effect, when starting driving rolls forward, steel rope can order about the drive of changed course roller set and respectively save telescopic jib stretching, extension, when starting driving rolls reversion, steel rope can order about the drive of changed course roller set and respectively save telescopic jib contraction, in whole telescopic drive process, the length of this steel rope remains unchanged, do not need hoisting mechanism of optional equipment, it is the restriction of collapsing length non-structure, this changed course roller set makes each telescopic jib can be according to varying in size of friction force separately, and initiatively select minimum force first moving, thereby realize flexible section by section, energy consumption is low on the one hand, make the energy-conserving and environment-protective more of this actuating device, on the other hand, it is flexible section by section that each saves telescopic jib, do not need debugging, speed is even.
Accompanying drawing explanation
Fig. 1 is that the utility model is for the structural representation of the retractable driving device of more piece jib.
Fig. 2 is that the utility model is for the structural representation of the retractable driving device tightening device of more piece jib.
In figure, each label represents:
1, steel rope; 2, driving rolls; 3, changed course roller set; 31, fixing changed course roller; 32, moving changed course roller; 321, the first moving changed course roller; 322, the second moving changed course roller; 323, the 3rd moving changed course roller; 4, basic jib; 5, joint telescopic jib; 6, latching device; 7, tightening device; 71, tensioning plate; 711, pin-and-hole; 72, fixed hinged seat; 73, locking bearing pin.
The specific embodiment
Below with reference to Figure of description and specific embodiment, the utility model is described in further details.
As depicted in figs. 1 and 2, the utility model is for the embodiment of the retractable driving device of more piece jib, this actuating device comprises steel rope 1, be installed in the driving rolls 2 on basic jib 4 and be installed in the changed course roller set 3 on basic jib 4 and Ge Jie telescopic jib 5, on the jib 4 of basis, be equiped with latching device 6 and tightening device 7, it is simple in structure, easy to operate, only the initiating terminal of steel rope 1 and latching device 6 need be connected and fixed, and after being wound in successively changed course roller set 3 and driving rolls 2 and tightening device 7 be connected, can complete the installation of this actuating device, this tightening device 7 makes steel rope 1 all the time in tensioning state, assurance there will not be idle running phenomenon, in this structure, only by steel cable 1 by changed course roller set 3 changed course effect, when starting driving rolls 2 forward, steel rope 1 can order about 3 drives of changed course roller set and respectively save telescopic jib 5 stretching, extensions, when starting driving rolls 2 reversion, steel rope 1 can order about 3 drives of changed course roller set and respectively save telescopic jib 5 contractions, in whole telescopic drive process, the length of this steel rope 1 remains unchanged, do not need hoisting mechanism of optional equipment, it is the restriction of collapsing length non-structure, this changed course roller set 3 makes each telescopic jib 5 can be according to varying in size of friction force separately, and initiatively select minimum force first moving, thereby realize flexible section by section, energy consumption is low on the one hand, make the energy-conserving and environment-protective more of this actuating device, on the other hand, it is flexible section by section that each saves telescopic jib 5, do not need debugging, speed is even.
In the present embodiment, changed course roller set 3 comprises the fixedly changed course roller 31 being installed on basic jib 4 and is installed in the moving changed course roller 32 respectively saving on telescopic jib 5, steel rope 1 is reeled and is connected with the moving changed course roller 32 on each joint telescopic jib 5 through fixing changed course roller 31, while starting driving rolls 2 forward, steel rope 1 orders about moving changed course roller 32 drives and respectively saves telescopic jib 5 stretching, extensions, while starting driving rolls 2 reversion, steel rope 1 orders about moving changed course roller 32 drives and respectively saves telescopic jib 5 contractions, fixing changed course roller 31 is fixed on basic jib 4, and moving changed course roller 32 can save telescopic jib 5 motions with each, by fixing changed course roller 31 and each moving changed course roller 32 combine volume around, both played the effect of changed course, can reach the effect of lowering energy-saving again, it is simple in structure, arrange ingenious.
In the present embodiment, moving changed course roller 32 comprises the first moving changed course roller 321 and the second moving changed course roller 322, the second moving changed course roller 322 on each joint telescopic jib 5 is reeled and is connected with the first moving changed course roller 321 on next joint telescopic jib 5 by steel rope 1, while starting driving rolls 2 forward, steel rope 1 orders about the first moving changed course roller 321 drives and respectively saves telescopic jib 5 stretching, extensions, while starting driving rolls 2 reversion, steel rope 1 orders about the second moving changed course roller 322 drives and respectively saves telescopic jib 5 contractions, arrange like this, make the coiling direction of steel rope 1 on each first moving changed course roller 321 consistent, to realize driving, respectively save telescopic jib 5 stretching, extensions, equally, make the coiling direction of steel rope 1 on each second moving changed course roller 322 consistent, to realize, drive the contraction that respectively saves telescopic jib 5, and the second moving roller 322 that alters course connects by the first moving changed course roller 321 coilings on steel rope 1 and next joint telescopic jib 5, continuity and stationarity that this actuating device drives have been guaranteed.
In the present embodiment, fixing changed course roller 31 is provided with four, take two be arranged symmetrically in the both sides of flexible axis as one group, and be divided into the two ends of basic jib 4, each two ends of saving telescopic jib 5 are equipped with two first moving changed course rollers 321 and the second moving changed course roller 322, and be arranged symmetrically in the both sides of flexible axis, on first joint telescopic jib 5, be also provided with the 3rd moving changed course roller 323 for connecting with two fixing changed course rollers 31 of basic jib 4 head end, two fixing changed course rollers 31 of the second moving changed course roller 322 and basic jib 4 head end of minor details telescopic jib 5 connect, arrange like this, make the multi-section telescopic cantilever 5 between first joint telescopic jib 5 and minor details telescopic jib 5 that two corresponding first moving changed course rollers 321 and the second moving changed course roller 322 all only need be set, can complete whole joint transmission, and fixing changed course roller 31 is arranged symmetrically in the both sides of flexible axis, and be divided into the two ends of basic jib 4, the first moving changed course roller 321 and the second moving changed course roller 322 are arranged symmetrically in the both sides of flexible axis, make respectively to save the suffered propulsive effort balance of telescopic jib 5, continuity and stationarity that this actuating device drives have further been improved.
In the present embodiment, tightening device 7 further comprises tensioning plate 71, fixed hinged seat 72 and locking bearing pin 73, on tensioning plate 71, be evenly equipped with pin-and-hole 711, steel rope 1 is connected with tensioning plate 71, when steel rope 1 reaches after regulation tensile force, by locking bearing pin 73, steel rope 1 is locked on fixed hinged seat 72, locking bearing pin 73 passes pin-and-hole 711 afterwards and fixed hinged seat 72 is fastenedly connected, to guarantee that this steel rope 1, all the time in tensioning state, there will not be idle running phenomenon, it is simple in structure, is easy to realize.
Although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model.Any those of ordinary skill in the art, in the situation that not departing from technical solutions of the utility model scope, all can utilize the technology contents of above-mentioned announcement to make many possible changes and modification to technical solutions of the utility model, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solutions of the utility model,, all should drop in the scope of technical solutions of the utility model protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the utility model technical spirit.
Claims (5)
1. the retractable driving device for more piece jib, it is characterized in that: comprise steel rope (1), be installed in the driving rolls (2) on basic jib (4) and be installed in basic jib (4) and each joint telescopic jib (5) on changed course roller set (3), on described basic jib (4), be equiped with latching device (6) and tightening device (7), the initiating terminal of described steel rope (1) connects with latching device (6), and be wound in successively changed course roller set (3) and driving rolls (2) afterwards and tightening device (7) be connected, while starting driving rolls (2) forward, described steel rope (1) orders about changed course roller set (3) drive and respectively saves telescopic jib (5) stretching, extension, while starting driving rolls (2) reversion, described steel rope (1) orders about changed course roller set (3) drive and respectively saves telescopic jib (5) contraction.
2. the retractable driving device for more piece jib according to claim 1, it is characterized in that: described changed course roller set (3) comprises the fixedly changed course roller (31) being installed on basic jib (4) and is installed in the moving changed course roller (32) respectively saving on telescopic jib (5), described steel rope (1) is reeled and is connected with the moving changed course roller (32) on each joint telescopic jib (5) through fixing changed course roller (31), while starting driving rolls (2) forward, described steel rope (1) orders about moving changed course roller (32) drive and respectively saves telescopic jib (5) stretching, extension, while starting driving rolls (2) reversion, described steel rope (1) orders about moving changed course roller (32) drive and respectively saves telescopic jib (5) contraction.
3. the retractable driving device for more piece jib according to claim 2, it is characterized in that: described moving changed course roller (32) comprises the first moving changed course roller (321) and the second moving changed course roller (322), the second moving changed course roller (322) on each joint telescopic jib (5) is reeled and is connected with the first moving changed course roller (321) on next joint telescopic jib (5) by steel rope (1), while starting driving rolls (2) forward, described steel rope (1) orders about the first moving changed course roller (321) drive and respectively saves telescopic jib (5) stretching, extension, while starting driving rolls (2) reversion, described steel rope (1) orders about the second moving changed course roller (322) drive and respectively saves telescopic jib (5) contraction.
4. the retractable driving device for more piece jib according to claim 3, it is characterized in that: described fixedly changed course roller (31) is provided with four, take two be arranged symmetrically in the both sides of flexible axis as one group, and be divided into the two ends of basic jib (4), each two ends of saving telescopic jib (5) are equipped with two first moving changed course rollers (321) and the second moving changed course roller (322), and be arranged symmetrically in the both sides of flexible axis, on first joint telescopic jib (5), be also provided with the 3rd moving changed course roller (323) for connecting with two fixing changed course rollers of basic jib (4) head end (31), the second moving changed course roller (322) of minor details telescopic jib (5) connects with two fixing changed course rollers of basic jib (4) head end (31).
5. according to the retractable driving device for more piece jib described in any one in claim 1 to 4, it is characterized in that: described tightening device (7) comprises tensioning plate (71), fixed hinged seat (72) and locking bearing pin (73), on described tensioning plate (71), be evenly equipped with pin-and-hole (711), described steel rope (1) is connected with tensioning plate (71), and described locking bearing pin (73) passes pin-and-hole (711) afterwards and fixed hinged seat (72) is fastenedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136887.2U CN203794512U (en) | 2014-03-25 | 2014-03-25 | Extension and retraction driving device for multi-section boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136887.2U CN203794512U (en) | 2014-03-25 | 2014-03-25 | Extension and retraction driving device for multi-section boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203794512U true CN203794512U (en) | 2014-08-27 |
Family
ID=51376746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420136887.2U Expired - Fee Related CN203794512U (en) | 2014-03-25 | 2014-03-25 | Extension and retraction driving device for multi-section boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203794512U (en) |
-
2014
- 2014-03-25 CN CN201420136887.2U patent/CN203794512U/en not_active Expired - Fee Related
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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: 20140827 |
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| CF01 | Termination of patent right due to non-payment of annual fee |