CN204752054U - Single multiplying power assembly pulley becomes multiplying power device - Google Patents
Single multiplying power assembly pulley becomes multiplying power device Download PDFInfo
- Publication number
- CN204752054U CN204752054U CN201520461554.1U CN201520461554U CN204752054U CN 204752054 U CN204752054 U CN 204752054U CN 201520461554 U CN201520461554 U CN 201520461554U CN 204752054 U CN204752054 U CN 204752054U
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- CN
- China
- Prior art keywords
- pulley
- multiplying power
- leading sheave
- fixed pulley
- fixed
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Abstract
The utility model provides a single multiplying power assembly pulley becomes multiplying power device which characterized in that: it includes fixed mounting guide pulley I, guide pulley II and fixed pulley on the cantilever crane head divides, wherein, guide pulley I lies in the top of fixed pulley, and guide pulley II lies in the place ahead of fixed pulley, and the anterior fixed mounting in cantilever crane head branch bottom who is just lieing in the below of guide pulley II and fixed pulley has the under shed formula that is provided with that is used for the direction to clamp change multiplying power movable pulley shaft to sell two blocks of duckbilled boards in shaft hole, rise to rise walking around guide pulley I, guide pulley II, change multiplying power movable pulley, fixed pulley in proper order and hanging hooking bracket looks rigid coupling of wire rope by what the hoist engine was drawn forth, be provided with the round pin axle that is used for connecting change multiplying power movable pulley wheel carrier and wear to adorn the hole on hanging hooking bracket.
Description
Technical field
The utility model relates to elevator machinery technical field, relates to elevator machinery list multiplying power assembly pulley specifically and becomes multiplying factor device.
Background technology
Along with elevator machinery is gradually to maximization, specialized, high efficiency future development, in order to give full play to the effective power of large lifting equipment, improve service efficiency, realize the principle of design of heavy-duty low-speed, underloading high speed, energy-conserving and environment-protective, large lifting equipment all have employed large multiplying power assembly pulley device.Just with large multiplying power assembly pulley device during such heavy duty, if but underloading time can not change pulley multiplying power, improve lifting velocity, will the waste of weight-lifting equipment resource allocation be caused, therefore adopt zoom rate technology will be that the routine of following large lifting equipment configures.Adopt zoom rate technology to maximize by implementation efficiency, utilize the allocating power of equipment to make lifting velocity maximized zoom technology be exactly the multiplying power of assembly pulley is become minimum to multiplying power 1.
Summary of the invention
The purpose of this utility model is just in order to provide a kind of large scale hoisting machinery list multiplying power assembly pulley to become multiplying factor device.Achieve the conversion of above-mentioned multiplying power, have employed semi-automatic operating mode simultaneously, the pin that only need manually intert on ground can complete zoom operation.
The purpose of this utility model realizes by following technique measures:
Single multiplying power assembly pulley of the present utility model becomes multiplying factor device and comprises the leading sheave I be fixedly mounted in jib head part, a leading sheave II and fixed pulley; Wherein, leading sheave I is positioned at the top of fixed pulley, leading sheave II is positioned at the front of fixed pulley, and is installed with two blocks of duckbilled plates of the under shed formula that the is provided with pin shaft hole clamping zoom rate movable pulley wheel shaft for leading in the front portion, jib head part bottom of the below being positioned at leading sheave II and fixed pulley; The hoist rope of being drawn by winch walk around leading sheave I, leading sheave II, zoom rate movable pulley, fixed pulley and suspension hook frame Joint successively, suspension hook frame is provided with the bearing pin mounting hole for connecting zoom rate movable pulley wheel carrier.
The pin shaft hole open end of duckbilled plate described in the utility model is tapered opening, top is the concave arc groove (this structure can when 1 multiplying power state, when crane arm can prevent suspension hook from having a vibration in the elevation angle increase process moment movable pulley departs from duckbilled plate) caved in the inside.
Linked together by the otic placode being welded on same position place between jib head described in the utility model and jib leading portion.
Principle of work of the present utility model is as follows:
Movable pulley in suspension hook group can be separated with suspension hook, pass through pinned connection, when needing large multiplying power, movable pulley forms the suspension hook group of large multiplying power together with suspension hook, when needing little multiplying power, suspension hook group is placed ground, extract out and connect bearing pin, movable pulley is separated with suspension hook, receive hoist rope, movable pulley hoists, suspension hook is motionless under Gravitative Loads, movable pulley is raised to top and docks with duckbilled plate, consider movable arm tower crane characteristic, fluted in duckbilled plate, when preventing suspension hook from having vibrations, movable pulley departs from duckbilled plate moment, such suspension hook is exactly multiplying power 1, otherwise by putting steel rope and make movable pulley drop to ground and suspension hook connecting into large multiplying power suspension hook group.
The beneficial effects of the utility model are as follows:
1, change multiplying factor device of the present utility model can make assembly pulley zoom efficiency accomplish to maximize;
2, structure is simple, easy to operate, only needs artificial combination with suspension hook frame by zoom rate movable pulley by the mode of wearing bearing pin on ground can realize S. A. zoom;
3. citing adopts movable arm tower crane 3 multiplying power assembly pulley, but application is not limited only to 3 multiplying powers, and multiplying power can be the haploidy number assembly pulleys such as 3,5,7.
4, the utility model improves the work efficiency of large lifting equipment to greatest extent, safe and reliable, has important practical significance.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model (3 multiplying power state).
Fig. 2 is duckbilled plate enlarged drawing in Fig. 1.
Fig. 3 is that the utility model is in 1 multiplying power view.
Sequence number in figure: 1 is jib leading portion, 2 is jib head part, and 3 is leading sheave I, and 4 is leading sheave II, 5 is fixed pulleys, and 6 is steel rope fixed ends, and 7 is duckbilled plates, and 8 is hoist ropes, 9 is zoom rate movable pulleys, and 10 is suspension hook framves, and 11 is concave arc grooves, and 12 is tapered openings.
Detailed description of the invention
The utility model is further described below with reference to embodiment (accompanying drawing):
As shown in Figure 1,3, single multiplying power assembly pulley of the present utility model becomes multiplying factor device and comprises the mode be triangularly arranged and be fixedly mounted on leading sheave I3, a leading sheave II4 and fixed pulley 5 in jib head part 2; Wherein, leading sheave I3 is positioned at the top of fixed pulley 5, leading sheave II4 is positioned at the front of fixed pulley 5, and is installed with two blocks of duckbilled plates 7 of the under shed formula that the is provided with pin shaft hole clamping zoom rate movable pulley wheel shaft for leading in the front portion, jib head part bottom of the below being positioned at leading sheave II4 and fixed pulley 5; The hoist rope of being drawn by winch walk around leading sheave I3, leading sheave II4, zoom rate movable pulley 9, fixed pulley 5 and suspension hook frame 10 Joint successively, suspension hook frame 10 is provided with the bearing pin mounting hole for connecting zoom rate movable pulley 9 wheel carrier; Linked together by the otic placode being welded on same position place between described jib head part 2 and jib leading portion 1.
As shown in Figure 2, the pin shaft hole open end of duckbilled plate 7 described in the utility model is tapered opening 12, top is the concave arc groove 11 caved in the inside, this structure can when 1 multiplying power state, and when crane arm can prevent suspension hook from having a vibration in elevation angle increase process, zoom rate movable pulley 9 departs from duckbilled plate 7 moment.
When reality uses, hoist rope 8 is discharged by lifting mechanism, leading sheave I walked around by traction hoist rope 8, through arm end leading sheave II, moves into the zoom rate movable pulley 9 be fixed on by two short pin shafts on suspension hook 10, walk around the fixed pulley 5 on jib head again, be fixed on suspension hook frame 10 by steel rope fixed end 6, install suspension hook frame, promote hoist rope 8, be now the 3 multiplying power states that hoist, as Fig. 1.
When needs underloading high speed, be transformed to 1 multiplying power: start lifting mechanism and make suspension hook frame 10 be down to ground, zoom of dismantling rate movable pulley 9 makes it be separated with 2 short pin shafts between suspension hook frame 10, then hoist rope 8 is promoted, to duckbilled plate 7, place slowly promotes, make zoom rate movable pulley 9 enter pin shaft hole by the guiding of the tapered opening 12 of duckbilled plate 7, complete 3 multiplying powers and become 1 multiplying power, hoist 1 multiplying power view as shown in Figure 3.
When needs convert 3 multiplying power to by 1 multiplying power, can, by reducing the crane arm elevation angle, making suspension hook be in amplitude peak place, slow releasing hoist rope 8, using gravity principle, zoom rate movable pulley 9 is slowly skidded off along the guiding of tapered opening 12.Controlling hoist rope 8 makes suspension hook frame 10 and zoom rate movable pulley 9 be down to ground, then 2 short pin shafts fixing the two are inserted, and completes 1 multiplying power and becomes 3 multiplying powers.
Claims (2)
1. single multiplying power assembly pulley becomes a multiplying factor device, it is characterized in that: it comprises the leading sheave I(3 be fixedly mounted in jib head part (2)), leading sheave II(4) an and fixed pulley (5); Wherein, leading sheave I(3) be positioned at the top of fixed pulley (5), leading sheave II(4) be positioned at the front of fixed pulley (5), and be positioned at leading sheave II(4) and the front portion, jib head part bottom of below of fixed pulley (5) be installed with two pieces of duckbilled plates (7) of the under shed formula that the is provided with pin shaft hole clamping zoom rate movable pulley wheel shaft for leading; Leading sheave I(3 walked around successively by the hoist rope of being drawn by winch), leading sheave II(4), zoom rate movable pulley (9), fixed pulley (5) and suspension hook frame (10) Joint, suspension hook frame (10) is provided with the bearing pin mounting hole for connecting zoom rate movable pulley (9) wheel carrier.
2. single multiplying power assembly pulley according to claim 1 becomes multiplying factor device, and it is characterized in that: the pin shaft hole open end of described duckbilled plate (7) is tapered opening (12), top is the concave arc groove (11) caved in the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520461554.1U CN204752054U (en) | 2015-07-01 | 2015-07-01 | Single multiplying power assembly pulley becomes multiplying power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520461554.1U CN204752054U (en) | 2015-07-01 | 2015-07-01 | Single multiplying power assembly pulley becomes multiplying power device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204752054U true CN204752054U (en) | 2015-11-11 |
Family
ID=54466783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520461554.1U Expired - Fee Related CN204752054U (en) | 2015-07-01 | 2015-07-01 | Single multiplying power assembly pulley becomes multiplying power device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204752054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986681A (en) * | 2015-07-01 | 2015-10-21 | 郑州科润机电工程有限公司 | Power-variable device for single-power pulley block |
-
2015
- 2015-07-01 CN CN201520461554.1U patent/CN204752054U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104986681A (en) * | 2015-07-01 | 2015-10-21 | 郑州科润机电工程有限公司 | Power-variable device for single-power pulley block |
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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: 20151111 Termination date: 20180701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |