CN202508787U - Safe heavy load tower crane - Google Patents
Safe heavy load tower crane Download PDFInfo
- Publication number
- CN202508787U CN202508787U CN2012201225263U CN201220122526U CN202508787U CN 202508787 U CN202508787 U CN 202508787U CN 2012201225263 U CN2012201225263 U CN 2012201225263U CN 201220122526 U CN201220122526 U CN 201220122526U CN 202508787 U CN202508787 U CN 202508787U
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- China
- Prior art keywords
- steel ring
- arm
- tower crane
- heavy load
- hydraulic actuating
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- Expired - Fee Related
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Abstract
The utility model provides a safe heavy load tower crane and belongs to the field of constructional engineering equipment. The safe heavy load tower crane comprises a tower body, a lazy arm, a wire rope, a lower swing mechanism, a horizontal detector, a hydraulic cylinder and a climb frame. The safe heavy load tower crane has the advantages that the wire rope is additionally arranged, hoisting weight is balanced through tensile force of the wire rope, and balance of the lazy arm is guaranteed in a strength range of a lazy arm steel supporting frame. By means of the added lower swing mechanism, the lazy arm and the lower swing mechanism can rotate synchronously. The horizontal detector is further arranged, real time monitoring for the lazy arm can be achieved under all conditions, the hydraulic cylinder can adjust tensioning degree of the wire rope, and therefore the lazy arm is in a horizontal balance state under any condition, and safe operation of the tower crane is guaranteed. Due to the fact that the climb frame is arranged on the tower body, and the lower swing mechanism is arranged on the tower body and below the lazy arm and above the climb frame, when the length of the tower body needs increasing while the height of buildings increases, the tower body which is on an upper portion of climb frame is just raised and then added to a tower section, and the length of the wire rope does not need adjusting.
Description
Technical field
The utility model belongs to the building engineering equipment field, is specifically related to a kind of safe Heavy load tower crane.
Background technology
In recent years, domestic economy was in the state of quick growth always, and wherein building industry has played crucial effects, brought the emergence of relevant building kind equipment industry thus, and the demand for the building kind equipment on the market also climbs up and up.With the tower crane is example: because the development of building industry, land resources in short supply caused the appearance of various skyscrapers, builds high-rise building the increasing demand of tower crane is increased.The tower crane of prior art is made up of body of the tower, main arm, secondary arm, suspension hook, last swing type mechanism etc., and main arm and secondary arm connect together and can under the control of last swing type mechanism, horizontally rotate; The outer end of the main arm suspension hook that hangs down comes the handling building materials with suspension hook.Generally speaking, the design of tower crane all has strict load-carrying requirement, and the handling article are overweight will to make main arm lack of equilibrium, and serious meeting is ruptured, and arm and article are pounded down together and brought serious life to threaten to the ground staff.Domestic the case that the fracture of a lot of arms causes casualties taken place.
In order to make arm keep balance, add counterweight in order to balance in the outer end of secondary arm in the prior art.But in use, if main arm is unloaded, then secondary arm sinks under the effect of counterweight, and arm tilts.If main arm load is overweight, then main arm sinks to causing equally arm to tilt.The weight that be difficult to guarantee main arm handling article in the practice just with secondary arm on counterweight coincide.
When building skyscraper, tower crane is very high, and aloft work receives the effect of wind-force, and the steel supporting structure internal stress problem brought of arm overbalance, causes the fatigue effect of arm steel bracket easily.After tower crane used a period of time, safety factor reduced, and the possibility that fracture takes place increases.
Summary of the invention
The technical matters that the utility model will solve is: overcome the deficiency of prior art, a kind of tower crane that can heavily loaded can guarantee safe operation again is provided.
The utility model solves the technical scheme that its technical matters adopted: a kind of safe Heavy load tower crane, comprise body of the tower, arm, turning down mechanism and cable wire, and arm comprises main arm and secondary arm; One end of cable wire links to each other with secondary arm, and the other end links to each other with turning down mechanism.
Preferably, body of the tower is provided with the frame that climbs; Turning down mechanism is installed in body of the tower top, and is positioned at the below of arm, the top of the frame that climbs.
Preferably, circular steel ring, external gear, the moving frame of card and engine installation are set in the turning down mechanism; The moving frame of card cooperates with circular steel ring and can be along its circular movement, and circular steel ring arranged outside has the gear teeth, the tooth mesh in the external gear and the circular steel ring outside; External gear links to each other with engine installation, and engine installation is installed on the moving frame of card; Cable wire is connected with the moving frame of card.
Preferably, circular steel ring, external gear, engine installation, fixed mount, liner steel ring and cushion block are set in the turning down mechanism; Circular steel ring arranged outside has the gear teeth, and the inboard is provided with directive slide track; The tooth mesh in the external gear and the circular steel ring outside; The liner steel ring is fixed on the body of the tower, and the liner steel ring outside is equipped with roller; Circular steel ring is installed in the liner steel ring outside and its directive slide track is cooperated with roller; External gear links to each other with engine installation; Fixed mount one end and engine installation are fixed, and the other end and liner steel ring are fixed; Cushion block is installed on the circular steel ring, and cable wire is connected with cushion block.
Preferably, also comprise hydraulic actuating cylinder; Hydraulic actuating cylinder is installed on the moving frame of card; The push rod front end is provided with becket, and cable wire passes from becket.
Preferably, also comprise hydraulic actuating cylinder; Hydraulic actuating cylinder is installed on the cushion block; Hydraulic actuating cylinder push rod front end is provided with becket, and cable wire passes from becket.
Preferably, also comprise the horizontal detection appearance, the horizontal detection appearance is installed on main arm or the secondary arm, links to each other with hydraulic actuating cylinder, the motion of the signal ability modulated pressure cylinder push rod that the horizontal detection appearance sends.
Compared with prior art, the beneficial effect of the utility model is:
1, the utility model adds cable wire in secondary arm end, and the pulling force through cable wire comes the balance hoisting weight, in the strength range of arm steel bracket, at utmost guarantees the arm balance;
2, through adding turning down mechanism, arm rotates with the turning down part in rotation process synchronously, has guaranteed that arm is in state of equilibrium all the time, has increased the safe reliability of hoisting operation;
3, because the horizontal detection appearance has been installed, can under any state, monitors in real time, and the tension degree of cable wire adjusted, thereby make arm be in the horizontal equilibrium state, ensure the safe operation of tower crane by hydraulic actuating cylinder to arm;
4, because body of the tower is provided with the frame that climbs, turning down mechanism is installed in body of the tower top, and is positioned at the below of arm, the top of the frame that climbs; When the increase of building height need be increased body of the tower, the whole body of the tower on the frame top of only need will climbing rises can be accomplished after the back adds the tower joint, need not to regulate separately the length of cable wire.
Description of drawings
Fig. 1 is the scheme drawing of first embodiment of the utility model;
Fig. 2 is the scheme drawing of second embodiment of the utility model;
Fig. 3 is the scheme drawing of the 3rd embodiment of the utility model;
Fig. 4 is the scheme drawing of the 4th embodiment of the utility model;
Fig. 5 is Fig. 1 and turning down shown in Figure 3 mechanism position enlarged diagram;
Fig. 6 is a turning down shown in Figure 5 mechanism planar view;
Fig. 7 is Fig. 2 and turning down shown in Figure 4 mechanism position enlarged diagram;
Fig. 8 is a turning down shown in Figure 7 mechanism planar view.
Be labeled as among the figure:
1, body of the tower; 2, arm; 21, main arm; 22, secondary arm; 3, turning down mechanism; 31, circular steel ring;
32, external gear; 33, the moving frame of card; 34, turning motor; 35, fixed mount; 36, liner steel ring; 37, cushion block;
4, horizontal detection appearance; 5, hydraulic actuating cylinder; 6, cable wire; 7, the frame that climbs.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model done further describing:
Embodiment one:
Present embodiment is arranged at turning down mechanism on the ground of body of the tower bottom.
Like Fig. 1,5, shown in 6, a kind of safe Heavy load tower crane comprises body of the tower 1, arm 2, turning down mechanism 3, horizontal detection appearance 4, hydraulic actuating cylinder 5, cable wire 6, frame 7 climbs.Arm 2 comprises main arm 21 and secondary arm 22; Turning down mechanism 3 is fixed on the ground of body of the tower 1 bottom, and aligns with body of the tower 1 retainer shaft; One end of cable wire 6 links to each other with secondary arm 22, and the other end links to each other with turning down mechanism 3.
Be provided with circular steel ring 31, external gear 32, the moving frame 33 of card and turning motor 34 in the turning down mechanism 3; The moving frame 33 of card cooperates with circular steel ring 31 and can be along its circular movement, and circular steel ring 31 arranged outside have the gear teeth, the tooth mesh in the external gear 32 and circular steel ring 31 outsides; External gear 32 links to each other with turning motor 34, and turning motor 34 is installed on the moving frame 33 of card; Cable wire 6 is connected with the moving frame 33 of card.
Hydraulic actuating cylinder 5 is installed on the moving frame 33 of card; Hydraulic actuating cylinder 5 push rod front ends are provided with becket, and cable wire 6 passes from becket.
Horizontal detection appearance 4 is installed on main arm 21 or the secondary arm 22, and horizontal detection appearance 4 links to each other with hydraulic actuating cylinder 5.Horizontal detection appearance 4 passes to hydraulic actuating cylinder 5 with detection signal, and hydraulic actuating cylinder 5 moves, and arm 2 is carried out the horizontal offset compensation make its level.
The motor that drives arm 2 rotations changes cireular frequency into electric signal through sensor, via treater electric signal is sent to turning motor 34, thereby makes the moving frame 33 of arm 2 and card have unequal angular velocity.
Present embodiment principle of work and working process are following:
During hoisting heavy, suspension hook hooks weight and weight is mentioned.When needs during with weight handling to assigned address; Arm 2 is turned an angle, and motor and the turning motor 34 that drive arm 2 this moment start simultaneously, and turning motor 34 drives external gear 32 and rotates; External gear 32 and steel ring 31 outside tooth mesh; External gear 32 finally drives the moving framves 33 of card and turning motor 34 rotates around steel ring 31, and it is identical with the cireular frequency of arm 2 to block moving frame 33 cireular frequencys, thereby has guaranteed the stress balance of arm 2 in the rotation process.When tower crane when heavy duty, main arm 21 is downward-sloping, and the horizontal detection appearance 4 on this moment arm 2 passes to hydraulic actuating cylinder 5 with detection signal; Hydraulic actuating cylinder 5 push rods are through being arranged on the becket pulling cable wire 6 of push rod front end; Cable wire 6 is tightened up, and the pulling force of cable wire 6 increases, thus adjustment arm 2 levels.When body of the tower need raise, only need the further length that increases cable wire 6 to make it be in extended state and get final product.
Embodiment two:
Like Fig. 2,7, shown in 8, circular steel ring 31, external gear 32, turning motor 34, fixed mount 35, liner steel ring 36 and cushion block 37 are set in the turning down mechanism 3; Circular steel ring 31 arranged outside have the gear teeth, and the inboard is provided with directive slide track; The tooth mesh in the external gear 32 and circular steel ring 31 outsides; Liner steel ring 36 is fixed on the body of the tower 1, and liner steel ring 36 outsides are equipped with roller; Circular steel ring 31 is installed in liner steel ring 36 outsides and its directive slide track is cooperated with roller; Circular steel ring 31 can rotate around liner steel ring 36; External gear 32 links to each other with turning motor 34; Fixed mount 35 1 ends and turning motor 34 are fixing, and the other end and liner steel ring 36 are fixing; Cushion block 37 is installed on the circular steel ring 31, and cable wire 6 is connected with cushion block 37.
Hydraulic actuating cylinder 5 is installed on the cushion block 37; Hydraulic actuating cylinder 5 push rod front ends are provided with becket, and cable wire 6 passes from becket.
Present embodiment principle of work and working process are following:
During hoisting heavy, suspension hook hooks weight and weight is mentioned.When needs during with weight handling to assigned address; Arm 2 is turned an angle; Motor and the turning motor 34 that drive arm 2 this moment start simultaneously, and turning motor 34 drives external gear 32 and rotates, because external gear 32 and steel ring 31 outside tooth mesh; And external gear 32 all is fixed on the liner steel ring 36 with turning motor 34; So the external gear 32 final steel rings 31 that drive rotate, and steel ring 31 rotational angular are identical with the cireular frequency of arm 2, thereby have guaranteed the stress balance of arm 2 in the rotation process.When tower crane when heavy duty, main arm 21 is downward-sloping, and the horizontal detection appearance 4 on this moment arm 2 passes to hydraulic actuating cylinder 5 with detection signal; Hydraulic actuating cylinder 5 push rods are through being arranged on the becket pulling cable wire 6 of push rod front end; Cable wire 6 is tightened up, and the pulling force of cable wire 6 increases, thus adjustment arm 2 levels.When body of the tower need raise, the length that only need increase cable wire 6 made it be in extended state and gets final product.
Embodiment three:
Compare with embodiment one, present embodiment is provided with the frame 7 that climbs on body of the tower 1.Turning down mechanism 3 is installed in frame 7 tops of climbing, and the frame 7 that therefore climbs also makes turning down mechanism 3 raise in the process that body of the tower is raise, thereby makes turning down mechanism 3 constant with respect to the distance of arm 2.In the whole elevation process, the length of cable wire 6 remains unchanged.
The above; It only is the preferred embodiment of the utility model; Be not to be the restriction of the utility model being made other form, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the utility model technical scheme content that do not break away from still belongs to the protection domain of the utility model technical scheme to any simple modification, equivalent variations and the remodeling that above embodiment did according to the technical spirit of the utility model.
Claims (8)
1. a safe Heavy load tower crane comprises body of the tower (1) and arm (2), and arm (2) comprises main arm (21) and secondary arm (22); It is characterized in that: also comprise turning down mechanism (3) and cable wire (6); One end of cable wire (6) links to each other with secondary arm (22), and the other end links to each other with turning down mechanism (3).
2. a kind of safe Heavy load tower crane according to claim 1 is characterized in that: body of the tower (1) is provided with the frame that climbs (7); Turning down mechanism (3) is installed in body of the tower (1) top, and is positioned at the top of the below of arm (2), the frame that climbs (7).
3. a kind of safe Heavy load tower crane according to claim 1 and 2 is characterized in that: circular steel ring (31), external gear (32), the moving frame (33) of card and engine installation (34) are set in the turning down mechanism (3); The moving frame (33) of card cooperates with circular steel ring (31) and can be along its circular movement, and circular steel ring (31) arranged outside has the gear teeth, the tooth mesh in the external gear (32) and circular steel ring (31) outside; External gear (32) links to each other with engine installation (34), and engine installation (34) is installed on the moving frame (33) of card; Cable wire (6) is connected with the moving frame (33) of card.
4. a kind of safe Heavy load tower crane according to claim 3 is characterized in that: also comprise hydraulic actuating cylinder (5); Hydraulic actuating cylinder (5) is installed on the moving frame (33) of card; Hydraulic actuating cylinder (5) push rod front end is provided with becket, and cable wire (6) passes from becket.
5. a kind of safe Heavy load tower crane according to claim 4; It is characterized in that: also comprise horizontal detection appearance (4); Horizontal detection appearance (4) is installed on main arm (21) or the secondary arm (22); Horizontal detection appearance (4) links to each other with hydraulic actuating cylinder (5), the motion of signal ability modulated pressure cylinder (5) push rod that horizontal detection appearance (4) sends.
6. a kind of safe Heavy load tower crane according to claim 1 and 2 is characterized in that: circular steel ring (31), external gear (32), engine installation (34), fixed mount (35), liner steel ring (36) and cushion block (37) are set in the turning down mechanism (3); Circular steel ring (31) arranged outside has the gear teeth, inboard to be provided with directive slide track; The tooth mesh in the external gear (32) and circular steel ring (31) outside; Liner steel ring (36) is fixed on the body of the tower (1), and liner steel ring (36) arranged outside has some rollers; Circular steel ring (31) is installed in liner steel ring (36) outside and its directive slide track is cooperated with roller; External gear (32) links to each other with engine installation (34); Fixed mount (35) one ends and engine installation (34) are fixing, the other end is fixed with liner steel ring (36); Cushion block (37) is installed on the circular steel ring (31); Cable wire (6) is connected with cushion block (37).
7. a kind of safe Heavy load tower crane according to claim 6 is characterized in that: also comprise hydraulic actuating cylinder (5); Hydraulic actuating cylinder (5) is installed on the cushion block (37); Hydraulic actuating cylinder (5) push rod front end is provided with becket, and cable wire (6) passes from becket.
8. a kind of safe Heavy load tower crane according to claim 7; It is characterized in that: also comprise horizontal detection appearance (4); Horizontal detection appearance (4) is installed on main arm (21) or the secondary arm (22); Horizontal detection appearance (4) links to each other with hydraulic actuating cylinder (5), the motion of signal ability modulated pressure cylinder (5) push rod that horizontal detection appearance (4) sends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201225263U CN202508787U (en) | 2012-03-28 | 2012-03-28 | Safe heavy load tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201225263U CN202508787U (en) | 2012-03-28 | 2012-03-28 | Safe heavy load tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202508787U true CN202508787U (en) | 2012-10-31 |
Family
ID=47061285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201225263U Expired - Fee Related CN202508787U (en) | 2012-03-28 | 2012-03-28 | Safe heavy load tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202508787U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602821A (en) * | 2012-03-28 | 2012-07-25 | 山东润科机电设备有限公司 | Safe and heavy tower crane |
| CN109399487A (en) * | 2018-12-12 | 2019-03-01 | 中国建筑第四工程局有限公司 | A kind of device and method using small stroke hydraulic cylinder long range lifting heavy |
-
2012
- 2012-03-28 CN CN2012201225263U patent/CN202508787U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602821A (en) * | 2012-03-28 | 2012-07-25 | 山东润科机电设备有限公司 | Safe and heavy tower crane |
| CN109399487A (en) * | 2018-12-12 | 2019-03-01 | 中国建筑第四工程局有限公司 | A kind of device and method using small stroke hydraulic cylinder long range lifting heavy |
| CN109399487B (en) * | 2018-12-12 | 2023-09-05 | 中国建筑第四工程局有限公司 | Device and method for lifting heavy objects in long distance by using small-stroke hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20130328 |