CN103496640A - Double-meshing interlocking type single-cylinder pin inserting and pulling mechanism for crane - Google Patents
Double-meshing interlocking type single-cylinder pin inserting and pulling mechanism for crane Download PDFInfo
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- CN103496640A CN103496640A CN201310467632.4A CN201310467632A CN103496640A CN 103496640 A CN103496640 A CN 103496640A CN 201310467632 A CN201310467632 A CN 201310467632A CN 103496640 A CN103496640 A CN 103496640A
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- pin
- cylinder
- arm
- interlocking
- plug
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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
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention provides a double-engagement interlocking type single-cylinder plug pin mechanism for a crane, which comprises a cylinder pin arranged on the side surface of a telescopic oil cylinder and a base body for installing the cylinder pin, wherein the base body is provided with an arm pin plug mechanism, a cylinder pin plug mechanism and an arm pin and cylinder pin interlocking mechanism; the arm pin plugging mechanism comprises a pin pulling T-shaped opening with a threaded hole, an arm pin pulling plunger cylinder and an arm pin T-shaped opening return spring; the cylinder pin plugging and unplugging mechanism comprises a cylinder pin plugging and unplugging plunger cylinder serving as a power source and a gear-toothed shaft slewing mechanism used for intermediate transition transmission. The invention has the advantages and positive effects that: the arm pin plugging mechanism is positioned at the upper end of the pin plugging mechanism on the same plane with the cylinder pin movement axis, and the pin pulling T-shaped opening is positioned at the central position of the axial movement axis of the arm pin pulling plunger cylinder, so that the local bending moment to the pin pulling T-shaped opening is not generated in the pin pulling process, and the stress is reasonable; the arm pin cylinder pin interlocking mechanism enables the mechanism to be safer and more reliable in the working process.
Description
Technical field
The invention belongs to technical field of engineering machinery, especially relate to two engagement interlocking-type single-cylinder plug pin mechanisms for a kind of hoisting crane.
Background technology
Telescoping mechanism is the critical component of telescopic arm crane.At present, middle large-tonnage telescopic arm crane generally adopts single-cylinder plug pin formula hoisting arm expansion mechanism, and this mechanism mainly comprises the single-cylinder plug pin mechanism on single telescopic oil cylinder and cylinder cap.Pin inserting-drawing mechanism is the critical component of telescoping mechanism, and it moves more frequent in the telescopic process of arm, the service condition complexity, and the stability of its motion directly affects the flexible efficiency of arm.
Can realize that by said mechanism with an oil cylinder, N being saved to arm successively stretches to assigned address.In telescopic process, mainly by the cylinder pin, oil cylinder and arm are linked together, by the arm pin, each joint arm is linked together, when oil cylinder is flexible, first the cylinder pin is inserted in the cylinder pin-and-hole, to realize the connection of telescopic oil cylinder and required action arm, by arm pin pulling-out mechanism, the arm pin is extracted in the former arm pin-and-hole that fixes this joint arm again, then telescoping cylinder promotes arm after assigned address, arm pin pulling-out mechanism release arm pin, extract the cylinder pin after making this arm joint and specifying the arm joint to link together, last oil cylinder is return home position again.Get final product contrary with said sequence of program that arm is retracted.
In existing technology, when pulling out the arm pin, various pin inserting-drawing mechanisms all can make the stressed local moment of flexure of T word mouth of pulling pin, and cause oil cylinder with pin, because of local moment of flexure, the situation of oil liquid leakage easily occurs.And cylinder pin or transmission complexity, or structure is reliable not, and volume is large.
Summary of the invention
It is little that the problem to be solved in the present invention is to provide a kind of volume, safeguards two engagement interlocking-type single-cylinder plug pin mechanisms for simple hoisting crane.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Two engagement interlocking-type single-cylinder plug pin mechanisms for hoisting crane, comprise the cylinder pin that is arranged on the telescopic oil cylinder side and the basic body that the cylinder pin is installed, and the arm pin inserting mechanism is set above described basic body, and basic body side surface arranges cylinder pin and cylinder pin inserting mechanism;
Described arm pin inserting mechanism comprises the T word mouth of pulling pin, the arm pin that are threaded hole pull pin plunger case and arm pin T word mouth retracing spring, the T word mouth of pulling pin is arranged on the pull pin end of arm pin plug cylinder piston rod of plunger case of arm pin, arm pin plug cylinder piston rod inside is hollow, hollow in-built arm pin T word mouth retracing spring; The described T of pulling pin word mouth is arranged on and the pull pin center of plunger case axial motion axis of arm pin;
Described cylinder pin inserting mechanism comprise as the cylinder pin of propulsion source pull pin plunger case, for the cogged tooth axle of being with of the excessive transmission in centre swing type mechanism; Described tooth axle swing type mechanism comprises the gear that tooth axle and tooth axle one end are equipped with;
One end of described cylinder pin is with the tooth bar be meshed with gear, and the cylinder pin retracing spring resetted for the cylinder pin is equipped with in inside.
Further, the screw thread that described arm pin plug cylinder piston rod is provided with by its termination is connected with the T word mouth of pulling pin; The second spring guide also is equipped with in the inside of arm pin plug cylinder piston rod.
Further, the pull pin end cover of plunger case of described cylinder pin comprises the seal ring with sealed nature.
Further, described tooth axle is stepped shaft, and the one end is with one section thread rod, and an end is by the spline joint gear, axially the fixing with circular nut of gear, and the tooth axle is fixed on basic body by bearing, and tooth axle two ends are provided with end cover.
Further, the working end of described cylinder pin is flat pattern.
Further, the first spring guide of cylinder pin retracing spring is equipped with in described cylinder pin inside.
Further, also comprise arm pin cylinder pin mutual interlocking gear, described arm pin cylinder pin mutual interlocking gear comprises the interlocking connecting rod be connected on the T word mouth of pulling pin, it is occupy-place mode interlocking structure that interlocking connecting rod and cylinder pin are pulled pin between the piston rod of plunger case, the cylinder pin is pulled pin in the rodless cavity of plunger case and is provided with aperture, and the interlocking connecting rod is extensible through aperture.
Owing to adopting technique scheme, advantage and good effect that the present invention has are: described arm pin inserting mechanism is positioned at and the upper end of cylinder pin axis of movement at conplane pin inserting-drawing mechanism, and pull pin T word mouth with the pull pin center of plunger case axial motion axis of arm pin, can not produce the local moment of flexure to the T word mouth of pulling pin in the process of pulling pin, reasonable stress; Arm pin cylinder pin mutual interlocking gear makes this mechanism in the course of the work, more safe and reliable; And volume is little, simple in structure, safeguard simple; .
The accompanying drawing explanation
Fig. 1 is front elevation of the present invention;
Fig. 2 is birds-eye view of the present invention;
Fig. 3 is the left view of arm pin cylinder pin mutual interlocking gear part of the present invention.
In figure:
1, basic body 2, cylinder pin 3, the T word mouth of pulling pin
4, arm pin plunger case 5, arm pin plug cylinder piston rod 6, the cylinder pin plunger case of pulling pin of pulling pin
7, tooth axle 8, gear 9, interlocking connecting rod
10, cylinder pin piston rod 11, cylinder pin retracing spring 12, the first spring guide
13, arm pin T word mouth retracing spring 14, the second spring guide
The specific embodiment
As shown in Figures 1 to 3:
Two engagement interlocking-type single-cylinder plug pin mechanisms for hoisting crane of the present invention, comprise the cylinder pin 2 that is arranged on the telescopic oil cylinder side and the basic body 1 that cylinder pin 2 is installed, the arm pin inserting mechanism is set above described basic body 1, and basic body 1 side arranges cylinder pin 2 and cylinder pin inserting mechanism;
Described arm pin inserting mechanism comprises the T word mouth 3 of pulling pin, the arm pin that are threaded hole pull pin plunger case 4 and arm pin T word mouth retracing spring 13, the described arm pin plunger case 4 of pulling pin is arranged on the top of basic body, and pull pin arm pin plug cylinder piston rod 5 screw thread be provided with by its termination and the T word mouth 3 of pulling pin of plunger case 4 of arm pin is connected; Arm pin plug cylinder piston rod 5 inside are hollow, and arm pin T word mouth retracing spring 13 and second spring guide 14 of arm pin pulling-out mechanism is housed in hollow; The described T of pulling pin word mouth 3 is arranged on and the pull pin center of plunger case 4 axial motion axis of arm pin;
When arm pin T word mouth retracing spring 13 is retracted for realizing the arm pin, the T word mouth 3 that helps to pull pin resets, and when the arm pin is pulled pin, cylinder rod chamber enters high pressure oil, and the T word mouth 3 of pulling pin moves down, and the arm pin is extracted; When the arm pin resets, the T word mouth 3 of pulling pin pops up under the effect of arm pin T word mouth retracing spring 13, and the hydraulic oil that now the arm pin is pulled pin in plunger case 4 is by the oil return line oil return;
Described cylinder pin inserting mechanism comprise as the cylinder pin of propulsion source pull pin plunger case 6, for the cogged tooth axle of being with of the excessive transmission in centre swing type mechanism; Described tooth axle swing type mechanism comprises the gear 8 that tooth axle 7 and tooth axle 7 one ends are equipped with, the cylinder pin pull pin plunger case 6 cylinder pin piston rod 10 by its rod end with rack and pinion 8 engagements;
As shown in Figure 3: described arm pin cylinder pin mutual interlocking gear comprises that an end is connected to T word mouth 3 two bottom sides of pulling pin, and an end inserts the interlocking connecting rod 9 of basic body 1, and it is occupy-place mode interlocking structure that interlocking connecting rod 9 and cylinder pin are pulled pin between the cylinder pin piston rod 10 of plunger case 6; Described arm pin cylinder pin mutual interlocking gear has realized that cylinder pin 2 and arm pin must have one of them and arm to keep being connected, interlocking connecting rod 9 is along with pull pin the carrying out of process of arm pin, be inserted in the aperture of pulling pin in the rodless cavity of plunger case 6 through the cylinder pin, account for the space that cylinder pin piston rod 10 is retracted, now will limit the unexpected retraction of cylinder pin 2.In like manner, when cylinder pin 2 is retracted, cylinder pin piston rod 10 can take the space that arm pin interlocking lever 9 is return, and to guarantee the arm pin, can accident not be pulled out, and arm pin cylinder pin mutual interlocking gear makes this mechanism in the course of the work, more safe and reliable.
One end of described cylinder pin 2 is with the tooth bar be meshed with gear 8, and cylinder pin retracing spring 11 and the first spring guide 12 resetted for cylinder pin 2 is equipped with in inside;
In cylinder pin latch process: under the effect of cylinder pin retracing spring 11, cylinder pin 2 is protruding, drive and cylinder pin 2 gears in meshs 8, and gear 8 is fixed on tooth axle 7 by spline, so tooth axle 7 can be with the cireular frequency revolution identical with gear 8 simultaneously.The revolution of tooth axle 7 can drive rack mechanism on the cylinder pin piston rod 10 be engaged with and move along the pull pin axis direction of plunger case 6 of cylinder pin.
The cylinder pin is pulled pin in process: in two cylinder pins as propulsion source are pulled pin the rodless cavity of plunger case 6, enter pressure oil liquid simultaneously, cylinder pin piston rod 10 travels forward under the promotion of pressure oil, and the rod end of cylinder pin piston rod 10 is with rack mechanism, this mechanism is meshed with the tooth axle 7 as excessive transmission device, drive 7 rotations of tooth axle, on tooth axle 7,10 are equipped with gear 11, tooth axle 7 can be with the cireular frequency rotation identical with gear 8, and the tooth bar that gear 8 rotates on the cylinder pin 2 that can drive with its engagement is inwardly retracted simultaneously, when cylinder pin 2 is retracted into while contacting with basic body 1, retraction puts in place.
Described arm pin inserting mechanism is positioned at and the upper end of cylinder pin 2 axis of movements at conplane pin inserting-drawing mechanism, the center that it can be arranged in the T word mouth 3 of pulling pin with arm pin oil cylinder with pin axial motion axis, can not produce the local moment of flexure to the T word mouth 3 of pulling pin in the process of pulling pin; And this oil cylinder is single oil cylinder, simple in structure, reasonable stress.
Above one embodiment of the present of invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the present patent application scope and improvement etc., within all should still belonging to patent covering scope of the present invention.
Claims (7)
1. hoisting crane use pair meshes the interlocking-type single-cylinder plug pin mechanisms, comprise the cylinder pin that is arranged on the telescopic oil cylinder side and the basic body that the cylinder pin is installed, it is characterized in that: the arm pin inserting mechanism is set above described basic body, and basic body side surface arranges cylinder pin and cylinder pin inserting mechanism;
Described arm pin inserting mechanism comprises the T word mouth of pulling pin, the arm pin that are threaded hole pull pin plunger case and arm pin T word mouth retracing spring, the T word mouth of pulling pin is arranged on the pull pin end of arm pin plug cylinder piston rod of plunger case of arm pin, arm pin plug cylinder piston rod inside is hollow, hollow in-built arm pin T word mouth retracing spring; The described T of pulling pin word mouth is arranged on and the pull pin center of plunger case axial motion axis of arm pin;
Described cylinder pin inserting mechanism comprise as the cylinder pin of propulsion source pull pin plunger case, for the cogged tooth axle of being with of the excessive transmission in centre swing type mechanism; Described tooth axle swing type mechanism comprises the gear that tooth axle and tooth axle one end are equipped with;
One end of described cylinder pin is with the tooth bar be meshed with gear, and the cylinder pin retracing spring resetted for the cylinder pin is equipped with in inside.
2. hoisting crane use pair according to claim 1 meshes the interlocking-type single-cylinder plug pin mechanisms, it is characterized in that: the screw thread that described arm pin plug cylinder piston rod is provided with by its termination is connected with the T word mouth of pulling pin; The second spring guide also is equipped with in the inside of arm pin plug cylinder piston rod.
3. two engagement interlocking-type single-cylinder plug pin mechanisms for hoisting crane according to claim 1 is characterized in that: the pull pin end cover of plunger case of described cylinder pin comprises the seal ring with sealed nature.
4. hoisting crane use pair according to claim 1 meshes the interlocking-type single-cylinder plug pin mechanisms, it is characterized in that: described tooth axle is stepped shaft, the one end is with one section thread rod, one end is by the spline joint gear, axially fixing with circular nut of gear, the tooth axle is fixed on basic body by bearing, and tooth axle two ends are provided with end cover.
5. hoisting crane use pair according to claim 1 meshes the interlocking-type single-cylinder plug pin mechanisms, and it is characterized in that: the working end of described cylinder pin is flat pattern.
6. hoisting crane use pair according to claim 1 meshes the interlocking-type single-cylinder plug pin mechanisms, and it is characterized in that: the first spring guide of cylinder pin retracing spring is equipped with in described cylinder pin inside.
7. according to two engagement interlocking-type single-cylinder plug pin mechanisms for the described arbitrary hoisting crane of claim 1 to 6, it is characterized in that: also comprise arm pin cylinder pin mutual interlocking gear, described arm pin cylinder pin mutual interlocking gear comprises the interlocking connecting rod be connected on the T word mouth of pulling pin, it is occupy-place mode interlocking structure that interlocking connecting rod and cylinder pin are pulled pin between the piston rod of plunger case, the cylinder pin is pulled pin in the rodless cavity of plunger case and is provided with aperture, and the interlocking connecting rod is extensible through aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310467632.4A CN103496640B (en) | 2013-10-09 | 2013-10-09 | Double-meshing interlocking type single-cylinder pin inserting and pulling mechanism for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310467632.4A CN103496640B (en) | 2013-10-09 | 2013-10-09 | Double-meshing interlocking type single-cylinder pin inserting and pulling mechanism for crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103496640A true CN103496640A (en) | 2014-01-08 |
| CN103496640B CN103496640B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310467632.4A Active CN103496640B (en) | 2013-10-09 | 2013-10-09 | Double-meshing interlocking type single-cylinder pin inserting and pulling mechanism for crane |
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| Country | Link |
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| CN (1) | CN103496640B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645917A (en) * | 2022-01-29 | 2022-06-21 | 北京航天发射技术研究所 | Dynamic mechanism braking locking device and method under impact action |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2759981Y (en) * | 2004-10-12 | 2006-02-22 | 大连理工大学 | Plug interlocking device of multi-section arm single oil-tank telescopic control system |
| CN2878316Y (en) * | 2006-01-23 | 2007-03-14 | 长沙中联重工科技发展股份有限公司 | Inserted pin mechanism for crane |
| CN100480163C (en) * | 2006-12-28 | 2009-04-22 | 长沙中联重工科技发展股份有限公司 | Cam type carrying pin inserting mechanism for crane |
| CN201580920U (en) * | 2009-12-31 | 2010-09-15 | 三一汽车制造有限公司 | Crane and single-cylinder pin-type telescopic arm and pin self-locking device thereof |
| CN203558778U (en) * | 2013-10-09 | 2014-04-23 | 天津山河装备开发有限公司 | Dual-engagement interlocked single cylinder pin plugging/unplugging mechanism for crane |
-
2013
- 2013-10-09 CN CN201310467632.4A patent/CN103496640B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2759981Y (en) * | 2004-10-12 | 2006-02-22 | 大连理工大学 | Plug interlocking device of multi-section arm single oil-tank telescopic control system |
| CN2878316Y (en) * | 2006-01-23 | 2007-03-14 | 长沙中联重工科技发展股份有限公司 | Inserted pin mechanism for crane |
| CN100480163C (en) * | 2006-12-28 | 2009-04-22 | 长沙中联重工科技发展股份有限公司 | Cam type carrying pin inserting mechanism for crane |
| CN201580920U (en) * | 2009-12-31 | 2010-09-15 | 三一汽车制造有限公司 | Crane and single-cylinder pin-type telescopic arm and pin self-locking device thereof |
| CN203558778U (en) * | 2013-10-09 | 2014-04-23 | 天津山河装备开发有限公司 | Dual-engagement interlocked single cylinder pin plugging/unplugging mechanism for crane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645917A (en) * | 2022-01-29 | 2022-06-21 | 北京航天发射技术研究所 | Dynamic mechanism braking locking device and method under impact action |
| CN114645917B (en) * | 2022-01-29 | 2024-04-05 | 北京航天发射技术研究所 | Dynamic mechanism braking locking device and method under impact action |
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| Publication number | Publication date |
|---|---|
| CN103496640B (en) | 2015-07-08 |
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Effective date of registration: 20220428 Address after: No. 410, Xiangzhong Road, Changsha City, Hunan Province Patentee after: Sunward Intelligent Equipment Co.,Ltd. Address before: 300400 Tianjin Wind Power Industrial Park, Beichen District, Tianjin Patentee before: Tianjin Sunward Equipment Development Co.,Ltd. |
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