CN104495631A - Crane and brake mechanical trip - Google Patents
Crane and brake mechanical trip Download PDFInfo
- Publication number
- CN104495631A CN104495631A CN201410849986.XA CN201410849986A CN104495631A CN 104495631 A CN104495631 A CN 104495631A CN 201410849986 A CN201410849986 A CN 201410849986A CN 104495631 A CN104495631 A CN 104495631A
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- CN
- China
- Prior art keywords
- mechanical trip
- drg
- connecting rod
- screw rod
- link mechanism
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
Abstract
The invention discloses a crane and a brake mechanical trip. The brake mechanical trip comprises a buffering seat, a compressing rod and a driving connecting rod mechanism, a regulating connecting rod mechanism and a releasing connecting rod mechanism, wherein the driving connecting rod mechanism, the regulating connecting rod mechanism and the releasing connecting rod mechanism are connected sequentially; the driving connecting rod mechanism comprises a compressing plate, a buffering spring and a reset spring; the compressing rod is arranged above the compressing plate; the driving connecting rod mechanism is installed on the buffering seat; the releasing connecting rod mechanism comprises a releasing rod connected to a brake; the compressing rod is connected with an elevating mechanism; when the load of the elevating mechanism exceeds the set value, the compressing rod moves downward and loads for the compressing plate, and acts on the driving connecting rod mechanism via the compressing plate; by the drive of the regulating connecting rod mechanism and the releasing connecting rod mechanism, the releasing rod at the tail end of the releasing connecting rod mechanism rotates so as to open the brake. According to the invention, external connection power is not required, the brake mechanical trip is driven by automatically utilizing the downward pressing force caused by loading an upper elastic pulley device to move, and the brake can be released reliably.
Description
Technical field
The present invention relates to handling machinery, particularly relate to a kind of mechanical trip for crane hoisting mechanism drg and a kind of hoisting crane with this drg mechanical trip.
Background technology
Forging plant uses forging crane to coordinate with press to carry out forging operation usually, because press and hoisting crane are controlled by different operators, hoisting crane is likely occurred not work and press still carries out forging presses down, now, press will much larger than the ability to bear of hoisting crane to the lower compressive load of forging.If do not carry out overload protection to lifting mechanism, hoisting crane will be caused to destroy.Therefore need in forging crane lifting mechanism, arrange drg mechanical trip restriction lock torque, when load reaches setting value, open drg by this device, prevent load from increasing sharply, play the object of protection hoisting crane.If load continues to increase, then lifting mechanism is switched to electric braking state, allows to decline; Until load is down to below setting value, drg mechanical trip resets, and drg is braked again.
And the drg mechanical trip of prior art, the elasticity assembly pulley of lifting mechanism and shaft brake are connected, need external connection power as the propulsion source of drg mechanical trip, therefore complex structure, cost is higher.
Therefore, need to develop a kind of new drg mechanical trip, to solve the above-mentioned technical matters existed in prior art.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of drg mechanical trip.
Another object of the present invention is to provide a kind of hoisting crane with drg mechanical trip of the present invention.
The present invention is achieved through the following technical solutions:
A kind of drg mechanical trip, for the lifting mechanism of hoisting crane, described drg mechanical trip comprises buffing pad, depression bar and the drive link mechanism be connected successively, regulating connecting rod mechanism and release link mechanism, and described drive link mechanism comprises pressing plate, recoil spring and retracing spring; Described depression bar is arranged at the top of described pressing plate; Described drive link mechanism is arranged on described buffing pad; Described release link mechanism comprises trigger bar, and described trigger bar is connected to described drg;
Described depression bar is connected with described lifting mechanism, when described lifting mechanism load exceedes setting value, depression bar moves downward and loads described pressing plate, by pressing plate function in described drive link mechanism, by the transmission of described regulating connecting rod mechanism and described release link mechanism, the described trigger bar of release link mechanism end described in making, is made to rotate and open described drg.
Drg mechanical trip of the present invention, preferably, described drg mechanical trip also comprises front bearing and rear support, described drive link mechanism also comprises connecting panel and right angle frame, described right angle frame has upper end, lower end and right angle end, the right angle end of described right angle frame is articulated with the top of described front bearing, and the lower end of described right angle frame is articulated with the upper end of described connecting panel.
Drg mechanical trip of the present invention, preferably, described drg mechanical trip also comprises torsion shaft mechanism, and described torsion shaft mechanism comprises torsion shaft and axle sleeve, and the right angle end of described right angle frame is hinged by the top of described torsion shaft mechanism and described front bearing.
Drg mechanical trip of the present invention, preferably, described regulating connecting rod mechanism comprises fork-shaped screw rod, regulates thread barrel, adjusting screw(rod), steel pipe, staight shank screw rod and set square;
Described set square has top connecting bore, left side connecting bore and bottom connecting bore;
The upper end thereof of described fork-shaped screw rod one end and described right angle frame, the other end screws in one end of described adjustment thread barrel; The other end of described adjustment thread barrel is connected with one end of described staight shank screw rod by described adjusting screw(rod), steel pipe, and the described top connecting bore of the described staight shank screw rod other end and described set square is hinged.
Drg mechanical trip of the present invention, preferably, described drg mechanical trip also comprises optical axis mechanism, and described optical axis mechanism comprises optical axis, spacer and spacer ring, and the top of described rear support is articulated with the described bottom connecting bore of described set square by described optical axis mechanism.
Drg mechanical trip of the present invention, preferably, described release link mechanism also comprises short staight shank screw rod, minor joint thread barrel and short fork-shaped screw rod;
The left side connecting bore of described short staight shank screw rod one end and described set square is hinged, and the described short staight shank screw rod other end screws in one end of described minor joint thread barrel; The described minor joint thread barrel other end is connected with described short fork-shaped screw rod one end; The described short fork-shaped screw rod other end is connected with described trigger bar.
Drg mechanical trip of the present invention, preferably, described drive link mechanism also comprises long bolt and guide holder, described recoil spring, retracing spring are arranged on buffing pad by described long bolt, described pressing plate, described guide holder, described recoil spring is arranged on the below of described pressing plate, described retracing spring is arranged on the top of described pressing plate, the lower end of described connecting panel and the upper end thereof of described long bolt.
Drg mechanical trip of the present invention, preferably, described adjustment thread barrel two ends are processed with left-handed, dextrorotation negative thread respectively, and the auxiliary hole for adjusting described regulating connecting rod mechanism length is left at the middle part of described adjustment thread barrel;
Described minor joint thread barrel two ends are processed with left-handed, dextrorotation negative thread respectively, and the auxiliary hole for adjusting described release link mechanism length is left at the middle part of described minor joint thread barrel.
Hoisting crane of the present invention, has drg mechanical trip of the present invention.
Hoisting crane of the present invention, preferably, described pressing plate is fixedly connected with the elasticity top sheave device of the lifting mechanism of described hoisting crane.
Beneficial effect of the present invention is, compared with prior art, the present invention adopts mechanical structured member completely, without the need to external connection power in the present invention, automatically the strength utilizing elasticity top sheave device stand under load to press down drives the action of drg mechanical trip, reliably can realize the release of drg.Can adjusting mechanism initial position according to requirements, make its action under the load effect of regulation, play the effect of protection hoisting crane.
Accompanying drawing explanation
The front view of the drg mechanical trip of Fig. 1 embodiment of the present invention.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the A direction view of Fig. 1.
Fig. 4 is the B-B view of Fig. 2;
Fig. 5 is the C-C view of Fig. 2.
Detailed description of the invention
The exemplary embodiments embodying feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various changes in different embodiments, it neither departs from interest field of the present invention, and explanation wherein and accompanying drawing are the use when explain in itself, and is not used to limit the present invention.
The hoisting crane of the embodiment of the present invention, has the drg mechanical trip of the embodiment of the present invention.
Below the drg mechanical trip of the embodiment of the present invention is specifically introduced.
As Figure 1-Figure 5, the drg mechanical trip of the embodiment of the present invention, be arranged between the elasticity top sheave device 11 of the lifting mechanism of the hoisting crane of the embodiment of the present invention and high speed shaft drg 10, comprise buffing pad 1, front bearing 2, rear support 3, depression bar 4, drive link mechanism 5, regulating connecting rod mechanism 6, release link mechanism 7, torsion shaft mechanism 8, optical axis mechanism 9.
As shown in Figure 2, in Fig. 2, line of centers a is the line of centers of drg 10, and line of centers b is drum center line, and line of centers c is reductor line of centers.
Front bearing 2 wherein and rear support 3 are strut members of drg mechanical trip; Depression bar 4 is connected with elasticity top sheave device 11, and when load exceedes setting value, depression bar 4 moves downward with elasticity top sheave device 11 and loads pressing plate 53, acts on drive link mechanism 5 by pressing plate 53; Drive link mechanism 5 is arranged on buffing pad 1, and is connected with regulating connecting rod mechanism 6 by torsion shaft mechanism 8, front bearing 2; Regulating connecting rod mechanism 6 is connected with release link mechanism 7 by optical axis mechanism 9, rear support 3; The end connecting brake 10 of release link mechanism 7.
As shown in Figure 1, Figure 2 and Figure 3, drive link mechanism 5 comprises long bolt 51, recoil spring 52, pressing plate 53, retracing spring 54, guide holder 55, connecting panel 56, right angle frame 57.
Wherein, recoil spring 52, retracing spring 54 are arranged on buffing pad 1 by long bolt 51, pressing plate 53, guide holder 55, realize the reset of embodiment of the present invention drg release gear and shock absorbing, recoil spring 52 is arranged on the below of pressing plate 53, and retracing spring 54 is arranged on the top of pressing plate 53.Guide holder 55 can guarantee spring 52,54 compress and resilience time stable.Connecting panel 56 both sides are hinged with the lower end of the upper end of long bolt 51, right angle frame 57 respectively, and as shown in figures 1 and 3, right angle frame 57 is L shape, comprises upper end, lower end and right angle end, and upper end and the fork-shaped screw rod 61 of right angle frame 57 are hinged.As shown in Figure 4, the right angle end of right angle frame 57 is then articulated with the top of front bearing 2 by torsion shaft mechanism 8.
Depression bar 4 one end is fixedly connected with elasticity top sheave device 11, and depression bar 4 has two right angle bendings, and as shown in Figure 2, the other end of depression bar 4 is positioned at the both sides of long bolt 51, and depression bar 4 is positioned at above pressing plate 53.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, regulating connecting rod mechanism 6 comprises fork-shaped screw rod 61, regulates thread barrel 62, adjusting screw(rod) 63, steel pipe 64, staight shank screw rod 65, set square 66.
The upper end thereof of the right angle frame 57 of fork-shaped screw rod 61 one end and drive link mechanism 5, the other end screws in the one end regulating thread barrel 62; The other end of thread barrel 62 is regulated to be connected with one end (in Fig. 1 right-hand member) of staight shank screw rod 65 by adjusting screw(rod) 63, steel pipe 64, staight shank screw rod 65 other end (in Fig. 1 left end) is hinged with set square 66 top connecting bore, set square 66 has three connecting bores, is respectively top connecting bore, left side connecting bore and bottom connecting bore.Regulate thread barrel 62 two ends to be processed with left-handed, dextrorotation negative thread respectively, auxiliary hole is left at middle part, by the length of auxiliary hole adjustment regulating connecting rod mechanism 6.
Torsion shaft mechanism 8 comprises torsion shaft 81 and axle sleeve 82.As shown in Figure 4, right angle frame 57 is connected with the top of front bearing 2 by torsion shaft 81, axle sleeve 82.Axle sleeve 82 can regulate the centering of right angle frame 57 and fork-shaped screw rod 61.
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, release link mechanism 7 comprises short staight shank screw rod 71, minor joint thread barrel 72, short fork-shaped screw rod 73 and trigger bar 74.
On the left of short staight shank screw rod 71 one end and set square 66, connecting bore is hinged, and the other end screws in one end (right-hand member in Fig. 1) of minor joint thread barrel 72; Minor joint thread barrel 72 other end (left end in Fig. 1) is connected with short fork-shaped screw rod 73 one end (right-hand member in Fig. 1); Short fork-shaped screw rod 73 other end (left end in Fig. 1) is connected with trigger bar 74 one end (right-hand member in Fig. 1).The other end (in Fig. 1 left end) of trigger bar 74 is connected with drg 10.Minor joint thread barrel 72 two ends are processed with left-handed, dextrorotation negative thread respectively, and auxiliary hole is left at middle part, by the length of auxiliary hole adjustment release link mechanism 7.
Optical axis mechanism comprises spacer 91, spacer ring 92, optical axis 93.Described set square 66 is connected with rear support 3 by the connecting bore of bottom and spacer 91, spacer ring 92, optical axis 93.Spacer 91, spacer ring 92 can the centerings of adjusting triangle plate 66 and staight shank screw rod 65.
The drg mechanical trip of the embodiment of the present invention, its working process is as follows:
Under nominal situation, load does not reach setting value, and it is less that depression bar 4 moves downward amplitude, can not contact with pressing plate 53, and drg mechanical trip is failure to actuate, inoperative to drg 10.
When lifted load reaches setting value, the depression bar 4 be connected with elasticity top sheave device 11 is moved down into desired location, contacting with the pressing plate 53 be arranged on buffing pad 1 makes pressing plate 53 move downward, and driving long bolt 51 descending, long bolt 51 is by connecting panel 56 tractive right angle frame 57 clickwise.Right angle frame 57 is made the trigger bar 74 of release link mechanism 7 end rotate by torsion shaft mechanism 8, regulating connecting rod mechanism 6, optical axis mechanism 9, thus is opened drg, prevents load from increasing and damages hoisting crane.
When Crane Load is decreased to below setting value, depression bar 4 disengages with elasticity top sheave device 11 upward movement and pressing plate 53, drg mechanical trip runs out of steam can not control brake, so drg is braked again, drg mechanical trip resets.
Although with reference to exemplary embodiment describing the application, should be appreciated that term used illustrates and exemplary and nonrestrictive term.Spirit or the essence of invention is not departed from because the application can specifically implement in a variety of forms, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in claim of enclosing, therefore fall into whole change in claim or its equivalency range and remodeling and all should be claim of enclosing and contained.
Claims (10)
1. a drg mechanical trip, for the lifting mechanism of hoisting crane, it is characterized in that, described drg mechanical trip comprises buffing pad, depression bar and the drive link mechanism be connected successively, regulating connecting rod mechanism and release link mechanism, and described drive link mechanism comprises pressing plate, recoil spring and retracing spring; Described depression bar is arranged at the top of described pressing plate; Described drive link mechanism is arranged on described buffing pad; Described release link mechanism comprises trigger bar, and described trigger bar is connected to drg;
Described depression bar is connected with described lifting mechanism, when described lifting mechanism load exceedes setting value, depression bar moves downward and loads described pressing plate, by pressing plate function in described drive link mechanism, by the transmission of described regulating connecting rod mechanism and described release link mechanism, the described trigger bar of described release link mechanism end is made to rotate and open described drg.
2. drg mechanical trip as claimed in claim 1, it is characterized in that, described drg mechanical trip also comprises front bearing and rear support, described drive link mechanism also comprises connecting panel and right angle frame, described right angle frame has upper end, lower end and right angle end, the right angle end of described right angle frame is articulated with the top of described front bearing, and the lower end of described right angle frame is articulated with the upper end of described connecting panel.
3. drg mechanical trip as claimed in claim 2, it is characterized in that, described drg mechanical trip also comprises torsion shaft mechanism, and described torsion shaft mechanism comprises torsion shaft and axle sleeve, and the right angle end of described right angle frame is hinged by the top of described torsion shaft mechanism and described front bearing.
4. drg mechanical trip as claimed in claim 2, is characterized in that, described regulating connecting rod mechanism comprises fork-shaped screw rod, regulates thread barrel, adjusting screw(rod), steel pipe, staight shank screw rod and set square;
Described set square has top connecting bore, left side connecting bore and bottom connecting bore;
The upper end thereof of described fork-shaped screw rod one end and described right angle frame, the other end screws in one end of described adjustment thread barrel; The other end of described adjustment thread barrel is connected with one end of described staight shank screw rod by described adjusting screw(rod), steel pipe, and the described top connecting bore of the described staight shank screw rod other end and described set square is hinged.
5. drg mechanical trip as claimed in claim 4, it is characterized in that, described drg mechanical trip also comprises optical axis mechanism, described optical axis mechanism comprises optical axis, spacer and spacer ring, and the top of described rear support is articulated with the described bottom connecting bore of described set square by described optical axis mechanism.
6. drg mechanical trip as claimed in claim 5, is characterized in that, described release link mechanism also comprises short staight shank screw rod, minor joint thread barrel and short fork-shaped screw rod;
The left side connecting bore of described short staight shank screw rod one end and described set square is hinged, and the described short staight shank screw rod other end screws in one end of described minor joint thread barrel; The described minor joint thread barrel other end is connected with described short fork-shaped screw rod one end; The described short fork-shaped screw rod other end is connected with described trigger bar.
7. drg mechanical trip as claimed in claim 2, it is characterized in that, described drive link mechanism also comprises long bolt and guide holder, described recoil spring, retracing spring are arranged on buffing pad by described long bolt, described pressing plate, described guide holder, described recoil spring is arranged on the below of described pressing plate, described retracing spring is arranged on the top of described pressing plate, the lower end of described connecting panel and the upper end thereof of described long bolt.
8. drg mechanical trip as claimed in claim 4, it is characterized in that, described adjustment thread barrel two ends are processed with left-handed, dextrorotation negative thread respectively, and the auxiliary hole for adjusting described regulating connecting rod mechanism length is left at the middle part of described adjustment thread barrel;
Described minor joint thread barrel two ends are processed with left-handed, dextrorotation negative thread respectively, and the auxiliary hole for adjusting described release link mechanism length is left at the middle part of described minor joint thread barrel.
9. a hoisting crane, is characterized in that, described crane tool is had the right the arbitrary described drg mechanical trip of requirement 1-8.
10. hoisting crane as claimed in claim 9, it is characterized in that, described pressing plate is fixedly connected with the elasticity top sheave device of the lifting mechanism of described hoisting crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410849986.XA CN104495631A (en) | 2014-12-31 | 2014-12-31 | Crane and brake mechanical trip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410849986.XA CN104495631A (en) | 2014-12-31 | 2014-12-31 | Crane and brake mechanical trip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104495631A true CN104495631A (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410849986.XA Pending CN104495631A (en) | 2014-12-31 | 2014-12-31 | Crane and brake mechanical trip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104495631A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184813Y (en) * | 1993-09-14 | 1994-12-07 | 张旗 | Automatically adjustable block brake |
| RU2162437C1 (en) * | 1999-07-02 | 2001-01-27 | Восточноукраинский государственный университет | Shoe brake |
| JP2004210546A (en) * | 1998-09-07 | 2004-07-29 | Mitsubishi Heavy Ind Ltd | Base isolating apparatus for crane |
| JP2007176610A (en) * | 2005-12-27 | 2007-07-12 | Nippon Sharyo Seizo Kaisha Ltd | Brake safety device for working machine |
| CN201284808Y (en) * | 2008-09-01 | 2009-08-05 | 徐至辉 | Multi-stage lever reinforcement type block brake |
| CN102107827A (en) * | 2010-12-08 | 2011-06-29 | 太原重工股份有限公司 | Mechanical brake release device of crane |
-
2014
- 2014-12-31 CN CN201410849986.XA patent/CN104495631A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184813Y (en) * | 1993-09-14 | 1994-12-07 | 张旗 | Automatically adjustable block brake |
| JP2004210546A (en) * | 1998-09-07 | 2004-07-29 | Mitsubishi Heavy Ind Ltd | Base isolating apparatus for crane |
| RU2162437C1 (en) * | 1999-07-02 | 2001-01-27 | Восточноукраинский государственный университет | Shoe brake |
| JP2007176610A (en) * | 2005-12-27 | 2007-07-12 | Nippon Sharyo Seizo Kaisha Ltd | Brake safety device for working machine |
| CN201284808Y (en) * | 2008-09-01 | 2009-08-05 | 徐至辉 | Multi-stage lever reinforcement type block brake |
| CN102107827A (en) * | 2010-12-08 | 2011-06-29 | 太原重工股份有限公司 | Mechanical brake release device of crane |
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Application publication date: 20150408 |