CN105480876A - Inner jacking mechanism of tower crane - Google Patents
Inner jacking mechanism of tower crane Download PDFInfo
- Publication number
- CN105480876A CN105480876A CN201610006454.9A CN201610006454A CN105480876A CN 105480876 A CN105480876 A CN 105480876A CN 201610006454 A CN201610006454 A CN 201610006454A CN 105480876 A CN105480876 A CN 105480876A
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- CN
- China
- Prior art keywords
- tower crane
- climbing support
- jacking
- guide plate
- standard knot
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses an inner jacking mechanism of a tower crane, and belongs to the technical field of tower crane jacking. The inner jacking mechanism comprises a sliding base (1), a climbing frame (3) and a tower crane hoisting mechanism (5), wherein the sliding base (1) and the climbing frame (3) are arranged outside an inner tower body (4) in a sleeving manner. The climbing frame (3) is provided with a hook (6) of a hoisting standard joint (2). According to the inner jacking mechanism of the tower crane, the operation effect of the inner jacking installing of a standard joint through the sliding base and the climbing frame is achieved, the structure is simple, and cost is low. Suspended jacking work is avoided, the operation safety is greatly improved, and the stability of the jacking action is ensured.
Description
Technical field
The present invention relates to a kind of tower crane, specifically lifting body in a kind of tower crane, belongs to tower crane lifting technical field.
Background technology
Tower crane four big-movement comprises: the action that hoists, luffing action, revolution action, jacking action.Jacking action is one of tower crane four big-movement, in existing product, most climbing structure is outer jacking pattern, during jacking, tower machine upper is integrated hanging, flying height is greater than the height of a joint standard knot, then standard knot is introduced hanging part, complete the jacking action of a joint standard knot.The safety of this outer climbing structure pattern when lifting operation is poor, and jacking action is unstable, and directly jacking requires higher to oil cylinder.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides lifting body in a kind of tower crane, structure is simple, with low cost, avoids unsettled lifting operation, significantly improves operational security, guarantee the stability of jacking action.
To achieve these goals, in this tower crane, lifting body comprises and is sleeved on cliding seat outside interior tower body and climbing support, and Lift Mechanism in Power Hoist;
Described climbing support is provided with the suspension hook of lifting standard knot.
Further, one side frame of described climbing support is connected with one end of guide plate, the other end of described guide plate is flexibly connected with the piston rod of jacking cylinder, the lower removable of described guide plate is connected with one end of the fork one of swing-bar mechanism, the other end of described fork one is connected with one end of fork two, the other end of described fork two is connected with the fixed link of swing-bar mechanism, described fixed link is fixedly connected on the bottom frame of described climbing support, and described guide plate and swing-bar mechanism form lever construction.
Further, described interior tower body is provided with mark time mechanism; The bottom frame of described climbing support is provided with the bearing pin one coordinated with described mark time mechanism, and described guide plate is provided with the bearing pin two coordinated with described mark time mechanism.
Further, described mark time mechanism is aerial ladder shape support fixed structure.
Further, described Lift Mechanism in Power Hoist is for promoting the half range standard knot of climbing support and standard knot.
Compared with prior art, in this tower crane, lifting body achieves by the effect of cliding seat and climbing support the operation effectiveness installed jacking in standard knot, and structure is simple, with low cost, avoid unsettled lifting operation, significantly improve operational security, ensure that the stability of jacking action.
Accompanying drawing explanation
Fig. 1 is agent structure schematic diagram of the present invention;
Fig. 2 is working process schematic diagram of the present invention;
Fig. 3 is jacking cylinder contraction state schematic diagram;
Fig. 4 is jacking cylinder jacking view;
In figure: 1, cliding seat, 2, standard knot, 2.1, half range standard knot, 3, climbing support, 3.1, jacking cylinder, 3.2, mark time mechanism, 3.3, bearing pin one, 3.4, swing-bar mechanism, 3.5, bearing pin two, 3.6, guide plate, 4, interior tower body, 5, Lift Mechanism in Power Hoist, 6, suspension hook.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As depicted in figs. 1 and 2, in this tower crane, lifting body comprises and is sleeved on cliding seat 1 outside interior tower body 4 and climbing support 3, and Lift Mechanism in Power Hoist 5;
Described climbing support 3 is provided with the suspension hook 6 of lifting standard knot 2.
Further, one side frame of described climbing support 3 is connected with one end of guide plate 3.6, the other end of described guide plate 3.6 is flexibly connected with the piston rod of jacking cylinder 3.1, the lower removable of described guide plate 3.6 is connected with one end of the fork 1 of swing-bar mechanism 3.4, the other end of described fork 1 is connected with one end of fork 2 3.8, the other end of described fork 2 3.8 is connected with the fixed link 3.9 of swing-bar mechanism 3.4, described fixed link 3.9 is fixedly connected on the bottom frame of described climbing support 3, described guide plate 3.6 forms lever construction with swing-bar mechanism 3.4.
By the lever construction that the fork 1 of above-mentioned guide plate 3.6 and swing-bar mechanism 3.4, fork 2 3.8 and fixed link 3.9 are formed, in conjunction with the effect of jacking cylinder 3.1, realize the jacking effect to cliding seat 1 and climbing support 3 self.
Further, described interior tower body 4 is provided with mark time mechanism 3.2; The bottom frame of described climbing support 3 is provided with the bearing pin 1 coordinated with described mark time mechanism 3.2, and described guide plate 3.6 is provided with the bearing pin 2 3.5 coordinated with described mark time mechanism 3.2.Realize carrying out supporting fixing effect to the climbing support 3 being in different phase in jacking process by mark time mechanism 3.2.
Further, described mark time mechanism 3.2 is aerial ladder shape support fixed structure.Structure is simple, safe and practical.
Further, described Lift Mechanism in Power Hoist 5 is for promoting the half range standard knot 2.1 of climbing support 3 and standard knot 2.Before tower machine needs to carry out interior lifting operation, first by Lift Mechanism in Power Hoist 5, climbing support 3 is promoted to desired height, the height making the distance between climbing support 3 and cliding seat 1 be greater than a joint standard knot 2; In addition, in lifting operation process, respectively two-part half range standard knot 2.1 is promoted to desired height by Lift Mechanism in Power Hoist 5, and respectively two-part half range standard knot 2.1 is transitioned on climbing support 3, two-part half range standard knot 2.1 is hung respectively by climbing support 3, and then two-part half range standard knot 2.1 is sleeved on outside interior tower body 4, be assembled into overall standard knot 2.Namely the pre-lift to climbing support 3 is achieved by Lift Mechanism in Power Hoist 5, and the pre-installation effect of standard knot 2.
As shown in Figure 2, in this tower crane, the working process of lifting body is:
Before lifting operation, first by Lift Mechanism in Power Hoist 5, climbing support 3 is promoted to desired height, makes the distance between climbing support 3 and cliding seat 1 be greater than the height of a joint standard knot 2;
Then, respectively two-part half range standard knot 2.1 is promoted to desired height by Lift Mechanism in Power Hoist 5, and respectively two-part half range standard knot 2.1 is transitioned on climbing support 3, two-part half range standard knot 2.1 is hung step by step respectively by the suspension hook 6 on climbing support 3, and then two-part half range standard knot 2.1 is sleeved on outside interior tower body 4, be assembled into overall standard knot 2 to be installed, and the bottom of this assembled standard knot 2 to be installed completed is fixedly connected with existing below standard knot, the top of this standard knot 2 to be installed is fixedly connected with climbing support 3;
Finally, by jacking cylinder 3.1 and the fork one 3.7 of the guide plate 3.6 in climbing support 3 with swing-bar mechanism 3.4, the lever construction that fork 2 3.8 and fixed link 3.9 are formed, the mark time mechanism 3.2 of cooperation aerial ladder shape support fixed structure realizes the jacking effect to cliding seat 1 and interior tower body 4, until the top of cliding seat 1 bottom with standard knot 2 to be installed is fixedly connected with, in jacking process, standard knot 2 to be installed is fixedly connected on climbing support 3 lower end, keep maintaining static with climbing support 3, synchronously under the effect of guide plate 3.6 in jacking cylinder 3.1 and climbing support 3 of cliding seat 1 and interior tower body 4 and swing-bar mechanism 3.4 upwards to promote, cliding seat 1 plays and interior tower body 4 and the connection transitional function between climbing support 3 and standard knot 2,
In jacking process, the guide plate 3.6 in climbing support 3 is as follows with the concrete course of action of swing-bar mechanism 3.4:
When lifting operation, first guarantee that the bearing pin 1 of climbing support 3 bottom coordinates stressed with mark time mechanism 3.2, the bearing pin 2 3.5 on guide plate 3.6 is got, now, the state of jacking cylinder 3.1 as shown in Figure 3, is contraction state, again bearing pin 2 3.5 is coordinated stressed with mark time mechanism 3.2, bearing pin 1 is got, now as shown in Figure 4, jacking cylinder 3.1 reaches range completely, by jacking cylinder 3.1 and the fork one 3.7 of the guide plate 3.6 in climbing support 3 with swing-bar mechanism 3.4, the lever construction that fork 2 3.8 and fixed link 3.9 are formed, the mark time mechanism 3.2 of cooperation aerial ladder shape support fixed structure realizes the jacking effect to cliding seat 1 and interior tower body 4, in this process, standard knot 2 to be installed is fixedly connected on climbing support 3 lower end, keep maintaining static with climbing support 3, synchronously under the effect of guide plate 3.6 in jacking cylinder 3.1 and climbing support 3 of cliding seat 1 and interior tower body 4 and swing-bar mechanism 3.4 upwards to promote, and then again bearing pin 1 is squeezed into and coordinate stressed with mark time mechanism 3.2, got by bearing pin 2 3.5, jacking cylinder 3.1 is back to contraction state, as shown in Figure 3, now completes an a whole set of jacking process, cliding seat 1 repeats above-mentioned steps, until can be connected with the first half of the standard knot 2 newly added.
In sum, in this tower crane, lifting body achieves by the effect of cliding seat and climbing support the operation effectiveness installed jacking in standard knot, and structure is simple, with low cost, avoid unsettled lifting operation, significantly improve operational security, ensure that the stability of jacking action.
Claims (5)
1. a lifting body in tower crane, is characterized in that,
Comprise and be sleeved on interior tower body (4) cliding seat outward (1) and climbing support (3), and Lift Mechanism in Power Hoist (5);
Described climbing support (3) is provided with the suspension hook (6) of lifting standard knot (2).
2. lifting body in a kind of tower crane according to claim 1, is characterized in that,
One side frame of described climbing support (3) is connected with one end of guide plate (3.6), the other end of described guide plate (3.6) is flexibly connected with the piston rod of jacking cylinder (3.1), the lower removable of described guide plate (3.6) is connected with one end of the fork one (3.7) of swing-bar mechanism (3.4), the other end of described fork one (3.7) is connected with one end of fork two (3.8), the other end of described fork two (3.8) is connected with the fixed link (3.9) of swing-bar mechanism (3.4), described fixed link (3.9) is fixedly connected on the bottom frame of described climbing support (3), described guide plate (3.6) and swing-bar mechanism (3.4) form lever construction.
3. lifting body in a kind of tower crane according to claim 1, is characterized in that,
Described interior tower body (4) is provided with mark time mechanism (3.2); The bottom frame of described climbing support (3) is provided with the bearing pin one (3.3) coordinated with described mark time mechanism (3.2), and described guide plate (3.6) is provided with the bearing pin two (3.5) coordinated with described mark time mechanism (3.2).
4. lifting body in a kind of tower crane according to claim 3, is characterized in that,
Described mark time mechanism (3.2) is aerial ladder shape support fixed structure.
5. lifting body in a kind of tower crane according to claim 1, is characterized in that,
Described Lift Mechanism in Power Hoist (5) is for promoting the half range standard knot (2.1) of climbing support (3) and standard knot (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610006454.9A CN105480876A (en) | 2016-01-04 | 2016-01-04 | Inner jacking mechanism of tower crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610006454.9A CN105480876A (en) | 2016-01-04 | 2016-01-04 | Inner jacking mechanism of tower crane |
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| CN105480876A true CN105480876A (en) | 2016-04-13 |
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| CN201610006454.9A Pending CN105480876A (en) | 2016-01-04 | 2016-01-04 | Inner jacking mechanism of tower crane |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0516938A1 (en) * | 1991-06-04 | 1992-12-09 | Liebherr-Werk Biberach GmbH | Device for the stepwise raising of heavy weights for tower cranes or working platforms |
| CN101759106A (en) * | 2009-12-29 | 2010-06-30 | 长沙中联重工科技发展股份有限公司 | Connection structure between tower crane lifting cylinder and upper cross beam and connection method thereof |
| CN102173363A (en) * | 2011-03-02 | 2011-09-07 | 长沙中联重工科技发展股份有限公司 | Jacking structure of tower crane and hydraulic system and jacking method thereof |
| CN105384088A (en) * | 2015-11-04 | 2016-03-09 | 徐州建机工程机械有限公司 | Rocker arm type inner jacking structure of tower crane and jacking method of rocker arm type inner jacking structure |
| CN205500626U (en) * | 2016-01-04 | 2016-08-24 | 徐州建机工程机械有限公司 | Climbing mechanism in tower crane |
-
2016
- 2016-01-04 CN CN201610006454.9A patent/CN105480876A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0516938A1 (en) * | 1991-06-04 | 1992-12-09 | Liebherr-Werk Biberach GmbH | Device for the stepwise raising of heavy weights for tower cranes or working platforms |
| CN101759106A (en) * | 2009-12-29 | 2010-06-30 | 长沙中联重工科技发展股份有限公司 | Connection structure between tower crane lifting cylinder and upper cross beam and connection method thereof |
| CN102173363A (en) * | 2011-03-02 | 2011-09-07 | 长沙中联重工科技发展股份有限公司 | Jacking structure of tower crane and hydraulic system and jacking method thereof |
| CN105384088A (en) * | 2015-11-04 | 2016-03-09 | 徐州建机工程机械有限公司 | Rocker arm type inner jacking structure of tower crane and jacking method of rocker arm type inner jacking structure |
| CN205500626U (en) * | 2016-01-04 | 2016-08-24 | 徐州建机工程机械有限公司 | Climbing mechanism in tower crane |
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Application publication date: 20160413 |
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