CN100480163C - Cam type carrying pin inserting mechanism for crane - Google Patents
Cam type carrying pin inserting mechanism for crane Download PDFInfo
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- CN100480163C CN100480163C CNB2006101369752A CN200610136975A CN100480163C CN 100480163 C CN100480163 C CN 100480163C CN B2006101369752 A CNB2006101369752 A CN B2006101369752A CN 200610136975 A CN200610136975 A CN 200610136975A CN 100480163 C CN100480163 C CN 100480163C
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- pin
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- sliding panel
- crane
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Abstract
The present invention discloses a cam-type load-bearing pin plug-in and draw-out mechanism for crane. It includes cover plate, slide plates, pin-drawing board, support abutment and connecting board. The described cover plate and support abutment are formed into the plug-in and draw-out mechanism self-body. The slide plate connected with the one-way action cylinder by means of connecting board are positioned at two sides of said support abutment. Said pin-drawing board is mounted in the curved groove of support abutment, two sides of the pin-drawing board are equipped with an extended pin shaft respectively, said pin shaft is slide-set in the central cam groove of slide plate, and the bottom portion of pin-drawing board is equipped with a reset mechanism.
Description
Technical field
The present invention is mainly concerned with the hoisting crane field, refers in particular to a kind of cam type carrying pin inserting mechanism for crane.
Background technology
Present large-tonnage both domestic and external, super-tonnage car hosit generally adopt single cylinder single oil cylinder telescoping mechanism, and this class telescoping mechanism mainly is made up of the bearing pins on bolt mechanism, telescopic oil cylinder, the arm and other duplicate.Bolt mechanism is the critical component of this class telescoping mechanism.
Bolt mechanism mainly is made up of the plug-in and pull-off device of flexible pin assembly and bearing pins, and its main principle of work can be illustrated by Fig. 1.The flexible pin assembly of bolt mechanism and the plug-in and pull-off device of bearing pins have been marked among Fig. 1, its working process is: 1, the movable end of bolt mechanism and telescopic oil cylinder is fixed, flexible pin assembly stretches out pin at the afterbody of first telescopic boom, and the movable end of telescopic oil cylinder is comprised that the telescoping mechanism and first telescopic boom interconnect; 2, bearing pins one is fixed on the first telescopic boom afterbody, by the pin-and-hole that inserts on the basic arm first telescopic boom is connected on the basic arm; 3, the plug-in and pull-off device of bearing pins is extracted bearing pins one from pin-and-hole, and the basic arm and first telescopic boom are separated from each other; 4, the fixed end of telescopic oil cylinder is fixed on the basic arm afterbody, at this moment will drive first telescopic boom when telescopic oil cylinder moves and other telescopic boom of being fixed on above it moves simultaneously, has realized the flexible of arm; 5, when first telescopic boom moves to the pin-and-hole position of an appointment, the plug-in and pull-off device of bearing pins discharges bearing pins one, and bearing pins one ejects by the application force of retracing spring, inserts in the pin-and-hole again, first telescopic boom is reconnected on the basic arm, thereby realized the once flexible of arm.Above action can circulate and carry out.If desired arm is extremely stretched state entirely from full reduced state action, then must stretch the N telescopic boom earlier, the flexible then pin assembly pin that will stretch is regained, bolt mechanism with the portion of the movable end of telescopic oil cylinder and N telescopic boom from and retract to the afterbody of N-1 telescopic boom, repetitive cycling is up to first telescopic boom is reached the position.
From above bolt mechanism working process, the flexible pin assembly of bolt mechanism and the plug-in and pull-off device of bearing pins move more frequent in the telescopic process of arm, and the service condition complexity plays critical effect in flexible action.The plug-in and pull-off device action of flexible pin assembly and bearing pins all realizes by pressure oil and retracing spring in the existing bolt mechanism, its principle of work is as follows: Fig. 2 is the scheme drawing of flexible pin assembly, when not having pressure oil to enter oil cylinder, flexible pin 101 is released and is inserted the pin-and-hole of arm 105 afterbodys by retracing spring 102, interconnect bolt mechanism and arm 105 fixing, when pressure oil enters pressure oil acting chamber 104, flexible pin 101 is withdrawn in the cylinder tube, and bolt mechanism is separated with arm 105; Fig. 3 is the scheme drawing of the plug-in and pull-off device of bearing pins 106, when bolt mechanism with after arm 105 is connected, the plate 107 of pulling pin of the plug-in and pull-off device of bearing pins 106 hooks bearing pins 106, effect by pressure oil, piston rod 108 drives the plate 107 of pulling pin bearing pins 106 is extracted downwards, at this moment two arms 105 separate, telescopic oil cylinder drives arm 105 and moves to another one appointment pin-and-hole position, pressure oil is cut off, reset by the application force piston rod 108 of the sheet reset spring 109 of pulling pin and the plate 107 of pulling pin, bearing pins 106 is released the back and inserts automatically in the pin-and-hole, and two arms 105 are retightened together.
Existing bolt mechanism is owing to be subjected to the restriction of arm 105 inner space sizes, the plug-in and pull-off device main body 110 of flexible pin assembly main body 103 and bearing pins is a shared body element (Fig. 2 and device main body shown in Figure 3 are same main body), the dimension precision requirement height of this main body, added that piston rod 108 moves in main body, need a lot of packing elements to be installed in body interior, cause the difficulty of processing of bolt mechanism main body big like this, needed most advanced and sophisticated equipment and complicated technology to ensure the quality of products; Bolt mechanism is the tail end that is fixed on the telescopic oil cylinder cylinder barrel, then the piston rod of telescopic oil cylinder must be pulled out from cylinder barrel as need dismounting bolt mechanism, just can carry out further work then, if go wrong in arm 105 inside, the work capacity of maintenance is very large; The flexible pin 101 of flexible pin assembly is subjected to is friction stress on the cross-sectional plane, because flexible pin 101 is one with piston rod 108, this stress is finally born by the piston rod 108 of packing element and flexible pin 101, through repeatedly damaging packing element and the flexible piston rod of selling 108 behind the back and forth movement, problems such as hydraulic oil is revealed, device quilt card appear, the plug-in and pull-off device of bearing pins 106 has two oil cylinders to plate 107 effects of pulling pin, because application force is not on same straight line, the piston rod 108 of two oil cylinders can be subjected to offset loading force, hair fastener, problem such as return not occur.Above problem has caused bolt mechanism overall performance instability, and reliability is not high.
Summary of the invention
The technical problem to be solved in the present invention just is: at the technical matters that prior art exists, the invention provides a kind of simple and compact for structure, installation and maintenance convenient, performance is more reliable and more stable, improve the cam type carrying pin inserting mechanism for crane of overall efficiency.
For solving the problems of the technologies described above, the solution that the present invention proposes is: a kind of cam type carrying pin inserting mechanism for crane, it is characterized in that: it comprises cover plate, sliding panel, the plate of pulling pin, bearing and connecting panel, described cover plate and bearing form the push-pull structure body, the sliding panel that links to each other with single acting oil cylinder by connecting panel is positioned at the both sides of bearing, the plate of pulling pin is installed in the bearing kidney slot of bearing, the bearing pin that the plate both sides stretch out of pulling pin is slidedly arranged in the center cams groove of sliding panel, and the bottom of the plate of pulling pin is provided with Bringing-back mechanism.
Described Bringing-back mechanism comprises two block pressur plates, spring conductor rod and the retracing spring that is oppositely arranged, and last ply wood links to each other with the plate bottom of pulling pin, and spring conductor rod is between two block pressur plates, and retracing spring is sheathed on the spring conductor rod.
Described bearing is provided with position sensing device.
Described sliding panel is provided with self-locking device.
Compared with prior art, advantage of the present invention just is: the single acting oil cylinder imput power is 1: 1.1～1: 1.4 with the ratio of the power of pulling pin among the present invention, the shape that this ratio can be adjusted sliding panel center cams groove as required changes, cam type carrying pin inserting mechanism is a cover work-saving device, this actv. guaranteed to pull pin reliability of action.Action and the latch action of pulling pin can both be finished at short notice, can guarantee the high efficiency requirement of mechanism.The processing technology of some vital partss among the present invention realizes that easily domestic existing conventional Fabricating machinery just can guarantee.The present invention can integral disassembly, assembly and do not influence other mechanism of interoperation with it, for installing and maintenance provides convenience.This device has realized that oil cylinder separates with the plate of pulling pin, and reliability improves greatly, and fault rate is low.
Description of drawings
Fig. 1 is a bolt mechanism principle of work scheme drawing in the prior art;
Fig. 2 is the structural representation of flexible pin assembly in the prior art;
Fig. 3 is the structural representation of carrying pin inserting device in the prior art.
Fig. 4 is the frame principles scheme drawing of push-pull structure of the present invention;
Fig. 5 is the structural representation of push-pull structure of the present invention;
Fig. 6 be among Fig. 5 A to structural representation;
Fig. 7 is the main TV structure scheme drawing after the present invention assembles;
Fig. 8 is the plan structure scheme drawing after the present invention assembles;
Fig. 9 is the left TV structure scheme drawing after the present invention assembles.
Marginal data
1, cover plate 2, sliding panel
3, pull pin plate 4, bearing
5, spring conductor rod 6, pressing plate
7, connecting panel 8, retracing spring
9, bearing kidney slot 10, bearing pin
11, center cams groove
Prior art
101, flexible pin 102, retracing spring
103, flexible pin assembly main body 104, pressure oil acting chamber
105, arm 106, bearing pins
107, pull pin plate 108, piston rod
109, pull pin sheet reset spring 110, plug-in and pull-off device main body
111, pressure oil cavity
The specific embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
Extremely shown in Figure 9 as Fig. 5, a kind of cam type carrying pin inserting mechanism for crane, it comprises cover plate 1, sliding panel 2, the plate 3 of pulling pin, bearing 4 and connecting panel 7, cover plate 1 forms the push-pull structure body with bearing 4, the sliding panel 2 that links to each other with single acting oil cylinder by connecting panel 7 is positioned at the both sides of bearing 4, the plate 3 of pulling pin is installed in the bearing kidney slot 9 of bearing 4, and the bearing pin 10 that stretch out plate 3 both sides of pulling pin is slidedly arranged in the center cams groove 11 of sliding panel 2, and the bottom of the plate 3 of pulling pin is provided with Bringing-back mechanism.Wherein, sliding panel 2 has left and right two, and it all is fixed on the connecting panel 7, is connected with single acting oil cylinder by connecting panel 7, and obtains the power that single acting oil cylinder provided.Bearing 4 is connected to form the pin inserting mechanism body by attaching parts and cover plate 1, and sliding panel 2 can be free to slide in the groove of bearing 4 and cover plate 1 composition.The plate 3 of pulling pin can stretch out under the effect of Bringing-back mechanism and put in place, and the plate 3 of pulling pin is slidedly arranged in the center cams groove 11 by the left and right two sections roundlet bearing pins 10 that stretch out.In the present embodiment, Bringing-back mechanism comprises two block pressur plates 6, spring conductor rod 5 and the retracing spring 8 that is oppositely arranged, and last ply wood 6 links to each other with plate 3 bottoms of pulling pin, and spring conductor rod 5 is between two block pressur plates 6, and retracing spring 8 is sheathed on the spring conductor rod 5.The plate 3 that just can promote to pull pin when sliding panel 2 moves moves, the plate 3 of pulling pin can move up and down, when the plate 3 of pulling pin moves down bearing pins being extracted makes telescopic boom temporarily separate with its upper class arm, after treating that telescopic oil cylinder drives this telescopic boom and finishes expanding-contracting action and put in place, pull pin and move on the plate 3, bearing pins is released and turns back to pin-and-hole telescopic boom and its upper class arm are reconnected; Spring conductor rod 5, pressing plate 6, retracing spring 8 are used to provide and transmit the power that upwards resets to the plate 3 of pulling pin, and connecting panel 7 links into an integrated entity two sliding panels 2 and single acting oil cylinder.Principle of work: referring to shown in Figure 4, the frame principles scheme drawing of bolt mechanism of the present invention, represented cam type carrying pin inserting mechanism for crane role in new type bolt mechanism among the figure, cam type carrying pin inserting mechanism is subjected to the control of single acting oil cylinder, export the action of pulling pin with latch, output detection signal offers the detection of electrons element simultaneously, and the situation of action is fed back to self-locking device, and self-locking device also can carry out motion limits to it according to the action situation of retractable pin mechanism.When single acting oil cylinder promotion sliding panel 2 moved, the inclined-plane of center cams groove 11 gave the roundlet bearing pin 10 application forces on the sliding panel 2, thereby the plate 3 of pulling pin is moved downward together with bearing pins overcome friction and retracing spring 8 elastic force, puts in place up to bearing pins is extracted; When single acting oil cylinder draws sliding panel 2 returns, roundlet bearing pin 10 will no longer be subjected to the application force of center cams groove 11 on the sliding panel 2, and the plate 3 of pulling pin stretches out under retracing spring 8 effects together with bearing pins bearing pins insertion pin-and-hole is put in place.Leave the installation tapped bore on the bearing 4, the detection of electrons element can be installed, for example position sensing device.On the sliding panel 2 self-locking device can be installed, be used for exporting lock out action while self-locking device and also can carry out motion limits sliding panel.Referring to left side and right side among Fig. 5 and Fig. 6 represent respectively the to pull pin following shifting state and the raised state of plate 3.Level is to left movement under the effect of single acting oil cylinder for sliding panel 2 among Fig. 9, and the plate 3 that promotes simultaneously to pull pin moves down, and has just become among Fig. 5 the left side plate 3 residing states of pulling pin; Sliding panel 2 level under the effect of the retracing spring that single acting oil cylinder carries moves right among Fig. 9, and the plate 3 of pulling pin simultaneously moves under the effect of retracing spring 8, just becomes among Fig. 5 the right side and has pulled pin plate 3 residing states.
Claims (3)
1, a kind of cam type carrying pin inserting mechanism for crane, it is characterized in that: it comprises cover plate (1), sliding panel (2), the plate (3) of pulling pin, bearing (4) and connecting panel (7), described cover plate (1) forms the push-pull structure body with bearing (4), the sliding panel (2) that links to each other with single acting oil cylinder by connecting panel (7) is positioned at the both sides of bearing (4), the plate (3) of pulling pin is installed in the bearing kidney slot (9) of bearing (4), the bearing pin (10) that plate (3) both sides stretch out of pulling pin is slidedly arranged in the center cams groove (11) of sliding panel (2), and the bottom of the plate of pulling pin (3) is provided with Bringing-back mechanism.
2, cam type carrying pin inserting mechanism for crane according to claim 1, it is characterized in that: described Bringing-back mechanism comprises two block pressur plates (6), spring conductor rod (5) and the retracing spring (8) that is oppositely arranged, last ply wood (6) links to each other with the plate of pulling pin (3) bottom, spring conductor rod (5) is positioned between two block pressur plates (6), and retracing spring (8) is sheathed on the spring conductor rod (5).
3, cam type carrying pin inserting mechanism for crane according to claim 1 and 2 is characterized in that: described bearing (4) is provided with position sensing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101369752A CN100480163C (en) | 2006-12-28 | 2006-12-28 | Cam type carrying pin inserting mechanism for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101369752A CN100480163C (en) | 2006-12-28 | 2006-12-28 | Cam type carrying pin inserting mechanism for crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN100999300A CN100999300A (en) | 2007-07-18 |
| CN100480163C true CN100480163C (en) | 2009-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101369752A Active CN100480163C (en) | 2006-12-28 | 2006-12-28 | Cam type carrying pin inserting mechanism for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100480163C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496640A (en) * | 2013-10-09 | 2014-01-08 | 天津山河装备开发有限公司 | Double-meshing interlocking type single-cylinder pin inserting and pulling mechanism for crane |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199074B (en) * | 2016-08-26 | 2022-07-08 | 上海先惠自动化技术股份有限公司 | Automatic plug structure of ABS sensor cable |
| CN113753772B (en) * | 2021-08-31 | 2023-06-20 | 湖南三一中型起重机械有限公司 | Pin inserting and pulling mechanism and crane |
-
2006
- 2006-12-28 CN CNB2006101369752A patent/CN100480163C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496640A (en) * | 2013-10-09 | 2014-01-08 | 天津山河装备开发有限公司 | Double-meshing interlocking type single-cylinder pin inserting and pulling mechanism for crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100999300A (en) | 2007-07-18 |
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Address after: 410013 No. 361 South silver basin, Hunan, Changsha Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Address before: 410013 No. 361 South silver basin, Hunan, Changsha Patentee before: Chang Sha Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |