CN100503416C - Vertical type pin mechanism of crane - Google Patents
Vertical type pin mechanism of crane Download PDFInfo
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- CN100503416C CN100503416C CNB2006101369729A CN200610136972A CN100503416C CN 100503416 C CN100503416 C CN 100503416C CN B2006101369729 A CNB2006101369729 A CN B2006101369729A CN 200610136972 A CN200610136972 A CN 200610136972A CN 100503416 C CN100503416 C CN 100503416C
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- 230000007246 mechanism Effects 0.000 title claims description 87
- 230000009975 flexible effect Effects 0.000 claims abstract description 72
- 239000004020 conductor Substances 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 10
- 210000003734 kidney Anatomy 0.000 claims description 6
- 239000011120 plywood Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 46
- 230000000694 effects Effects 0.000 description 12
- 238000001514 detection method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
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Abstract
The invention relates to a vertical pin structure of crane, wherein it comprises cam detachable flexible pin, cam support pin plug device and self locker; the main body of flexible pin device is connected to the main body of plug device; the flexible pin is vertical to the working direction of pin plate; the self locker comprises locking pin, return spring, compressing cover, and self locking plate; one end of self locking plate is connected to the sliding plate of plug device, while another end is connected to the compressing cover; the locking axle is under the compressing cover; the low end of locking axle is inserted into the feedback open of main body of flexible pin; the return spring sheaths the locking axle. The invention has simple structure and reliable property.
Description
Technical field
The present invention is mainly concerned with the hoisting crane field, refers in particular to a kind of vertical type pin mechanism of 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 401 is released and is inserted the pin-and-hole of arm 405 afterbodys by retracing spring 402, interconnect bolt mechanism and arm 405 fixing, when pressure oil enters pressure oil acting chamber 404, flexible pin 401 is withdrawn in the cylinder tube, and bolt mechanism is separated with arm 405; Fig. 3 is the scheme drawing of the plug-in and pull-off device of bearing pins 406, when bolt mechanism with after arm 405 is connected, the plate 407 of pulling pin of the plug-in and pull-off device of bearing pins 406 hooks bearing pins 406, effect by pressure oil, piston rod 408 drives the plate 407 of pulling pin bearing pins 406 is extracted downwards, at this moment two arms 405 separate, telescopic oil cylinder drives arm 405 and moves to another one appointment pin-and-hole position, pressure oil is cut off, reset by the application force piston rod 408 of the sheet reset spring 409 of pulling pin and the plate 407 of pulling pin, bearing pins 406 is released the back and inserts automatically in the pin-and-hole, and two arms 405 are retightened together.
Existing bolt mechanism is owing to be subjected to the restriction of arm inner space size, the plug-in and pull-off device main body 410 of flexible pin assembly main body 403 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 408 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 405 inside, the work capacity of maintenance is very large; The flexible pin 401 of flexible pin assembly is subjected to is friction stress on the cross-sectional plane, because flexible pin 401 is one with piston rod 408, this stress is finally born by the piston rod 408 of packing element and flexible pin 401, through repeatedly damaging packing element and the flexible piston rod of selling 408 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 406 has two oil cylinders to plate 407 effects of pulling pin, because application force is not on same straight line, the piston rod 408 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 vertical type pin mechanism of crane of overall efficiency.
For solving the problems of the technologies described above, the solution that the present invention proposes is: a kind of vertical type pin mechanism of crane, it is characterized in that: it comprises cam type separated retractable pin mechanism, cam type carrying pin inserting mechanism and self-locking device, retractable pin mechanism body and push-pull structure body link into an integrated entity, flexible pin is vertical with the operative orientation of the plate of pulling pin, described self-locking device comprises lock shaft, retracing spring, gland and self-locking plate, one end of self-locking plate links to each other with the push-pull structure sliding panel, the other end links to each other with gland, lock shaft is positioned at the below of gland, the lower end of lock shaft is inserted in the feedback port on the retractable pin mechanism body, and retracing spring is sheathed on the lock shaft.
Described cam type separated retractable pin mechanism comprises upper cover plate, flexible pin sliding panel, main body top, flexible pin, lower body part, retracing spring, lower cover and connecting panel, main body top and lower body part are connected to form the retractable pin mechanism body, main body top and lower body part are between upper cover plate and lower cover, flexible pin and be installed between main body top and the lower body part by the flexible pin sliding panel that connecting panel links to each other with single acting oil cylinder, the bearing pin that stretch out flexible pin both sides is slidedly arranged in the kidney slot of offering on the center cams groove of flexible pin sliding panel and the retractable pin mechanism body, the tail end of flexible pin links to each other with a retracing spring, and described upper cover plate and lower cover are provided with feedback port.
Described cam type carrying pin inserting mechanism comprises cover plate, push-pull structure sliding panel, the plate of pulling pin, bearing and connecting panel, described cover plate and bearing form the push-pull structure body, the push-pull structure 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 push-pull structure 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.
Compared with prior art, advantage of the present invention just is:
The present invention is a kind of application to cam type separated retractable pin mechanism and cam type carrying pin inserting mechanism, be applicable to that bearing pins is arranged vertically the situation in arm, actv. of the present invention is combined into a kind of later-model bolt mechanism with above two kinds of mechanisms, and has kept high efficiency, reliability, the safety of whole mechanism.The processing technology of some vital partss among the present invention realizes that easily domestic existing conventional Fabricating machinery just can guarantee.Major part of the present invention connects into as a whole when assembling by the connection fastener, be easy for installation and maintenance.This device has realized that oil cylinder separates with flexible pin, 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 a sectional structure scheme drawing of the present invention;
Fig. 6 is a mounting structure scheme drawing of the present invention;
Fig. 7 is the local structure scheme drawing of cam type separated retractable pin mechanism;
Fig. 8 is the sectional structure scheme drawing at A-A place among Fig. 7;
Fig. 9 be among Fig. 8 B to structural representation;
Figure 10 is the plan structure scheme drawing after the cam type separated retractable pin mechanism assembling;
Figure 11 is the sectional structure scheme drawing at C-C place among Figure 10;
Figure 12 is the structural representation of cam type carrying pin inserting mechanism;
Figure 13 be among Figure 12 D to structural representation;
Figure 14 is the main TV structure scheme drawing after the cam type carrying pin inserting mechanism assembling;
Figure 15 is the plan structure scheme drawing after the cam type carrying pin inserting mechanism assembling;
Figure 16 is the left TV structure scheme drawing after the cam type carrying pin inserting mechanism assembling.
The specific embodiment
Below with reference to the drawings and specific embodiments the present invention is described in further details.
As shown in Figure 5 and Figure 6, vertical type pin mechanism of crane of the present invention, it comprises cam type separated retractable pin mechanism 2, cam type carrying pin inserting mechanism 1 and self-locking device, retractable pin mechanism body and push-pull structure body link into an integrated entity, and cam type carrying pin inserting mechanism 1 and cam type separated retractable pin mechanism 2 are respectively by independently first single acting oil cylinder 501 and 502 controls of second single acting oil cylinder separately.The pin 204 that stretches is vertical with the operative orientation of the plate 103 of pulling pin, described self-locking device comprises lock shaft 301, retracing spring 302, gland 303 and self-locking plate 304, one end of self-locking plate 304 links to each other with push-pull structure sliding panel 202, the other end links to each other with gland 303, lock shaft 301 is positioned at the below of gland 303, the lower end of lock shaft 301 is inserted in the feedback port 112 on the retractable pin mechanism body, and retracing spring 302 is sheathed on the lock shaft 301.
Extremely shown in Figure 16 as Figure 12, cam type carrying pin inserting mechanism for crane 1 among the present invention, it comprises cover plate 101, push-pull structure sliding panel 102, the plate 103 of pulling pin, bearing 104 and connecting panel 107, cover plate 101 forms the push-pull structure body with bearing 104, the push-pull structure sliding panel 102 that links to each other with single acting oil cylinder by connecting panel 107 is positioned at the both sides of bearing 104, the plate 103 of pulling pin is installed in the bearing kidney slot 109 of bearing 104, the bearing pin 110 that plate 103 both sides stretch out of pulling pin is slidedly arranged in the center cams groove 111 of push-pull structure sliding panel 102, and the bottom of the plate 103 of pulling pin is provided with Bringing-back mechanism.Wherein, push-pull structure sliding panel 102 has left and right two, and it all is fixed on the connecting panel 107, is connected with single acting oil cylinder by connecting panel 107, and obtains the power that single acting oil cylinder provided.Bearing 104 is connected to form the pin inserting mechanism body by attaching parts and cover plate 101, and push-pull structure sliding panel 102 can be free to slide in the groove of bearing 104 and cover plate 101 compositions.The plate 103 of pulling pin can stretch out under the effect of Bringing-back mechanism and put in place, and the plate 103 of pulling pin is slidedly arranged in the center cams groove 111 by the left and right two sections roundlet bearing pins 110 that stretch out.In the present embodiment, Bringing-back mechanism comprises two block pressur plates 106, spring conductor rod 105 and the retracing spring 108 that is oppositely arranged, last ply wood 106 links to each other with plate 103 bottoms of pulling pin, and spring conductor rod 105 is between two block pressur plates 106, and retracing spring 108 is sheathed on the spring conductor rod 105.The plate 103 that just can promote to pull pin when 102 plates that slide move moves, the plate 103 of pulling pin can move up and down, when the plate 103 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 103, bearing pins is released and turns back to pin-and-hole telescopic boom and its upper class arm are reconnected; Spring conductor rod 105, pressing plate 106, retracing spring 108 are used to provide and transmit the power that upwards resets to the plate 103 of pulling pin, and connecting panel 107 links into an integrated entity two push-pull structure sliding panels 102 and single acting oil cylinder.Principle of work: 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 with the action situation feed back to self-locking device, 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 push-pull structure sliding panel 102 moves, the inclined-plane of center cams groove 111 gives the roundlet bearing pin 110 application forces on the push-pull structure sliding panel 102, thereby the plate 103 of pulling pin is moved downward together with bearing pins overcome friction and retracing spring 108 elastic force, put in place up to bearing pins is extracted; When single acting oil cylinder draws push-pull structure sliding panel 102 returns, roundlet bearing pin 110 will no longer be subjected to the application force of center cams groove 111 on the push-pull structure sliding panel 102, and the plate 103 of pulling pin stretches out under retracing spring 108 effects together with bearing pins bearing pins insertion pin-and-hole is put in place.Leave the installation tapped bore on the bearing 104, the detection of electrons element can be installed, for example position sensing device.Referring to left side and right side among Figure 12 and Figure 13 represent respectively the to pull pin following shifting state and the raised state of plate 103.Level is to left movement under the effect of single acting oil cylinder for push-pull structure sliding panel 102 among Figure 16, and the plate 3 that promotes simultaneously to pull pin moves down, and has just become among Figure 12 the left side plate 103 residing states of pulling pin; Push-pull structure sliding panel 102 level under the effect of the retracing spring that single acting oil cylinder carries moves right among Figure 16, and the plate 103 of pulling pin simultaneously moves under the effect of retracing spring 108, just becomes among Figure 12 the right side and has pulled pin plate 103 residing states.
Extremely shown in Figure 11 as Fig. 7, cam type separated retractable pin mechanism for crane 2 of the present invention, it comprises upper cover plate 201, flexible pin sliding panel 202, flexible pin 204, main body top 203, lower body part 205, retracing spring 206, lower cover 207 and connecting panel 208, main body top 203 and lower body part 205 are connected by fastener, form the retractable pin mechanism body, other movable members all relies on this integral structure to position and leads; Upper cover plate 201 and lower cover 207 are covered on the outside of main body top 203 and lower body part 205 respectively, upper cover plate 201 and lower cover 207 are used for guaranteeing that flexible pin sliding panel 202 moves in groove, the flexible pin of protection sliding panel 202 is not subjected to ectocine simultaneously, the state of kinematic motion that provides feedback port will stretch pin feeds back to the external world, carries out motion limits for self-locking device provides interface; Flexible pin 204 and be installed between main body top 203 and the lower body part 205 by the flexible pin sliding panel 202 that connecting panel 208 links to each other with single acting oil cylinder, the bearing pin 209 that stretch out flexible pin 204 both sides is slidedly arranged in the kidney slot of offering on the center cams groove 210 of flexible pin sliding panel 202 and the retractable pin mechanism body 211, flexible pin sliding panel 202 has upper and lower two, it can be free to slide in the groove of main body top 203 and lower body part 205, be connected with single acting oil cylinder by connecting panel 208, and obtain the power that single acting oil cylinder provided.Just can promote flexible pin 204 and move when flexible pin sliding panel 202 moves, flexible pin 204 can stretch, and when stretching out telescopic oil cylinder is connected with telescopic boom and bears the power that telescopic oil cylinder drive telescopic boom moves, telescopic oil cylinder and telescopic boom disengaging after withdrawing.The tail end of flexible pin 204 links to each other with a retracing spring 206, makes flexible pin return by the restoring force of retracing spring when compressing.In preferred embodiment, as shown in the figure, there is a circular hole to be positioned at the top of roundlet bearing pin 209 on the upper cover plate 201, this is the feedback port 212 of self-locking device, self-locking device also can carry out motion limits by 212 pairs of flexible pins 204 of this feedback port simultaneously; An elongated slot is arranged as feedback port 212 among the figure on the lower cover 207, the little round pin of hypomere stretches out from this elongated slot, detection signal is provided for the detection of electrons element.Its principle of work is: cam type separated retractable pin mechanism is subjected to the control of single acting oil cylinder, output is stretched pin and the action of the pin that contracts, output detection signal offers the detection of electrons element simultaneously, and the situation of action fed back to self-locking device, self-locking device also can carry out motion limits to it according to the action situation of the push-pull structure of bearing pins.The state that stretches out and the retracted mode of flexible pin 204 represented on left side and right side respectively among Figure 10 and Figure 11.Left side flexible pin sliding panel 202 moves downward under the effect of single acting oil cylinder among Figure 10, promotes flexible pin 204 retractions simultaneously, has just become the flexible pin in right side sliding panel 202 and flexible pin 204 residing states among the figure; Flexible pin sliding panel 202 upward movement under the effect of the retracing spring that single acting oil cylinder carries in right side among the figure, flexible simultaneously pin 204 stretches out under the effect of retracing spring 206, has just become the state shown in the left side.In this process, when the flexible pin of single acting oil cylinder promotion sliding panel 202 moves, the inclined-plane of center cams groove 210 gives the roundlet bearing pin 209 application forces on the flexible pin sliding panel 202, thereby makes flexible pin flexible pin 204 overcome frictions and retracing spring 206 elastic force retraction, puts in place up to retraction; When pin sliding panel 202 returns were contracted in the single acting oil cylinder stretching, roundlet bearing pin 209 no longer was subjected to the application force of center cams groove 210 on the flexible pin sliding panel 202, and flexible pin 204 stretches out under retracing spring 206 acts on and puts in place.
The integrally-built principle of work of the present invention: referring to shown in Figure 4, represented among the figure that cam type separated retractable pin mechanism 2 and cam type carrying pin inserting mechanism 1 are combined into bolt mechanism of the present invention, mechanical self-locking device among the figure can be realized the self-locking of this bolt mechanism, when flexible pin 204 is reduced to, self-locking device will limit the action of pulling pin of carrying pin inserting mechanism 1, after bearing pins is pulled out, self-locking device will limit the pin action of contracting of flexible pin 204.Left side and right side represent that respectively flexible pin 204 stretches out the state that the bearing pins state of pulling up and the pin 204 withdrawal bearing pins of stretching are plugged among Fig. 5.Left side self-locking plate 304 is installed on the push-pull structure sliding panel 102 of carrying pin inserting mechanism among Fig. 5, is pulled up by the motion bearing pins of this push-pull structure sliding panel 102, and self-locking plate 304 is also depressed lock shaft 301 simultaneously, pin 204 lockings of will stretching; When carrying pin inserting mechanism sliding panel 102 resets, bearing pins turns back to pin-and-hole, and self-locking plate 304 will be abdicated the space and give lock shaft 301, and lock shaft 301 resets under the elastic force effect of the directional tagging of gland 303 and retracing spring 302; Flexible pin contracts after 204 times, and lock shaft 301 can't move down, with self-locking plate 304 together with carrying pin inserting mechanism sliding panel 102 locking, the just states shown in right side among Fig. 5.
Claims (3)
1, a kind of vertical type pin mechanism of crane, it is characterized in that: it comprises cam type separated retractable pin mechanism (2), cam type carrying pin inserting mechanism (1) and self-locking device, retractable pin mechanism body and push-pull structure body link into an integrated entity, flexible pin (204) is vertical with the operative orientation of the plate of pulling pin (103), described self-locking device comprises lock shaft (301), retracing spring (302), gland (303) and self-locking plate (304), one end of self-locking plate (304) links to each other with push-pull structure sliding panel (102), the other end links to each other with gland (303), lock shaft (301) is positioned at the below of gland (303), the lower end of lock shaft (301) is inserted in the feedback port (212) on the retractable pin mechanism body, and retracing spring (302) is sheathed on the lock shaft (301);
Described cam type separated retractable pin mechanism (2) comprises upper cover plate (201), flexible pin sliding panel (202), main body top (203), flexible pin (204), lower body part (205), retracing spring (206), lower cover (207) and connecting panel (208), main body top (203) and lower body part (205) are connected to form the retractable pin mechanism body, main body top (203) and lower body part (205) are positioned between upper cover plate (201) and the lower cover (207), flexible pin (204) and be installed between main body top (203) and the lower body part (205) by the flexible pin sliding panel (202) that connecting panel (208) links to each other with single acting oil cylinder, the bearing pin (209) that stretch out flexible pin (204) both sides is slidedly arranged in the kidney slot of offering on the center cams groove (210) of flexible pin sliding panel (202) and the retractable pin mechanism body (211), the tail end of flexible pin (204) links to each other with a retracing spring (206), and described upper cover plate (201) and lower cover (207) are provided with feedback port (212);
Described cam type carrying pin inserting mechanism (1) comprises cover plate (101), push-pull structure sliding panel (102), the plate (103) of pulling pin, bearing (104) and connecting panel (107), described cover plate (101) forms the push-pull structure body with bearing (104), the push-pull structure sliding panel (102) that links to each other with single acting oil cylinder by connecting panel (107) is positioned at the both sides of bearing (104), the plate (103) of pulling pin is installed in the bearing kidney slot (109) of bearing (104), the bearing pin (110) that plate (103) both sides stretch out of pulling pin is slidedly arranged in the center cams groove (111) of push-pull structure sliding panel (102), and the bottom of the plate of pulling pin (103) is provided with Bringing-back mechanism.
2, vertical type pin mechanism of crane according to claim 1, it is characterized in that: described Bringing-back mechanism comprises two block pressur plates (106), spring conductor rod (105) and the retracing spring (108) that is oppositely arranged, last ply wood (106) links to each other with the plate of pulling pin (103) bottom, spring conductor rod (105) is positioned between two block pressur plates (106), and retracing spring (108) is sheathed on the spring conductor rod (105).
3, vertical type pin mechanism of crane according to claim 2 is characterized in that: described bearing (104) is provided with position sensing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101369729A CN100503416C (en) | 2006-12-28 | 2006-12-28 | Vertical type pin mechanism of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101369729A CN100503416C (en) | 2006-12-28 | 2006-12-28 | Vertical type pin mechanism of crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1994852A CN1994852A (en) | 2007-07-11 |
| CN100503416C true CN100503416C (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101369729A Active CN100503416C (en) | 2006-12-28 | 2006-12-28 | Vertical type pin mechanism of crane |
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| CN (1) | CN100503416C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214912B (en) * | 2008-01-21 | 2010-06-02 | 长沙中联重工科技发展股份有限公司 | Longitudinal single swing link type carrying pin plug mechanism for crane |
| CN101214913B (en) * | 2008-01-21 | 2010-06-02 | 长沙中联重工科技发展股份有限公司 | Connecting rod type interlocking mechanism for crane |
| CN101979307B (en) * | 2010-10-14 | 2012-08-08 | 三一汽车起重机械有限公司 | Single-cylinder pin plugging/unplugging mechanism for telescopic crane |
| CN102229413A (en) * | 2011-05-25 | 2011-11-02 | 三一汽车起重机械有限公司 | Latch-type telescopic boom and crane with telescopic boom |
| RU2646710C2 (en) | 2013-08-27 | 2018-03-06 | Сюйчжоу Хэви Машинери Ко., Лтд. | Single-cylinder plug pin type telescopic arm, telescopic method thereof and crane having telescopic arm |
| CN103527557B (en) * | 2013-09-29 | 2016-02-24 | 徐州重型机械有限公司 | Single-cylinder bolt mechanism and there is oil cylinder and the hoist of this mechanism |
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2006
- 2006-12-28 CN CNB2006101369729A patent/CN100503416C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN1994852A (en) | 2007-07-11 |
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Address after: 410013 No. 361 South silver basin, Hunan, Changsha Patentee after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: 410013 No. 361 South silver basin, Hunan, Changsha Patentee before: CHANGSHA ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |