CN203558778U - Dual-engagement interlocked single cylinder pin plugging/unplugging mechanism for crane - Google Patents
Dual-engagement interlocked single cylinder pin plugging/unplugging mechanism for crane Download PDFInfo
- Publication number
- CN203558778U CN203558778U CN201320622530.0U CN201320622530U CN203558778U CN 203558778 U CN203558778 U CN 203558778U CN 201320622530 U CN201320622530 U CN 201320622530U CN 203558778 U CN203558778 U CN 203558778U
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- Prior art keywords
- pin
- cylinder
- arm
- unplugging
- interlocking
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- Withdrawn - After Issue
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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 utility model provides a dual-engagement interlocked single cylinder pin plugging/unplugging mechanism for a crane. The mechanism comprises a cylinder pin arranged on one side face of a telescopic cylinder and a base body for mounting the cylinder pin, wherein an arm pin plugging/unplugging mechanism, a cylinder pin plugging/unplugging mechanism, an air pin and cylinder pin plugging/unplugging mechanism are arranged on the base body; the arm pin plugging/unplugging mechanism comprises a pin plugging T-shaped notch with a threaded hole, an arm pin unplugging plunger type cylinder and an arm pin T-shaped notch return spring; the cylinder pin plugging/unplugging mechanism comprises a cylinder pin unplugging plunger type cylinder serving as a power source, and a gear shaft rotating mechanism with a gear used for intermediate excessive transmission. The dual-engagement interlocked single cylinder pin plugging/unplugging mechanism has the advantages and positive effects that the arm pin plugging/unplugging mechanism is positioned at the upper end of a pin plugging/unplugging mechanism which is on the same plane as a cylinder pin motion axis, the pin unplugging T-shaped notch is at a central position of an axial motion axis of the arm pin unplugging plunger type cylinder, local bending moment on the pin unplugging T-shaped notch is not generated in the pin unplugging process, and the stress is reasonable. According to the arm pin and cylinder pin interlocking mechanism, the mechanism is safer and more reliable in the operating process.
Description
Technical field
The utility model belongs to technical field of engineering machinery, especially relates 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, and service condition is complicated, and the stability of its motion directly affects the flexible efficiency of arm.
By said mechanism, can realize and with an oil cylinder, N be saved to arm and successively stretch to assigned address.In telescopic process, mainly by cylinder pin, oil cylinder and arm are linked together, by arm pin, each joint arm is linked together, when oil cylinder is flexible, first cylinder pin is inserted in cylinder pin-and-hole, to realize the connection of telescopic oil cylinder and required action arm, by arm pin pulling-out mechanism, 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, after making this arm joint and specifying arm joint to link together, extract cylinder pin, last oil cylinder is return home position again.The program that arm is retracted is contrary with said sequence.
In existing technology, when pulling out 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 the situation of oil liquid leakage easily to occur because of local moment of flexure.And cylinder pin or transmission are complicated, or structure is reliable not, and volume is large.
Summary of the invention
It is little that problem to be solved in the utility model 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 adopted in the utility model is:
Two engagement interlocking-type single-cylinder plug pin mechanisms for hoisting crane, comprise the cylinder pin that is arranged on telescopic oil cylinder side and the basic body that cylinder pin is installed, and described basic body is provided with arm pin inserting mechanism 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;
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 be equipped with tooth axle and tooth axle one end;
One end of described cylinder pin is with the tooth bar being meshed with gear, and the cylinder pin retracing spring resetting for 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 is also 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 its one end is with one section of thread rod, and one end is by spline joint gear, axially the fixing with circular nut of gear, and 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 and is connected to the interlocking connecting rod of pulling pin on T word mouth, it is occupy-place mode interlocking structure that interlocking connecting rod and cylinder pin are pulled pin between the piston rod of plunger case, cylinder pin is pulled pin in the rodless cavity of plunger case and is provided with aperture, and interlocking connecting rod is extensible through aperture.
Owing to adopting technique scheme, advantage and the good effect that the utlity model 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, in the process of pulling pin, can not produce the local moment of flexure to the T word mouth 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.
Accompanying drawing explanation
Fig. 1 is front elevation of the present utility model;
Fig. 2 is birds-eye view of the present utility model;
Fig. 3 is the left view of the utility model arm pin cylinder pin mutual interlocking gear part.
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 utility model, comprise the cylinder pin 2 that is arranged on telescopic oil cylinder side and the basic body 1 that cylinder pin 2 is installed, described basic body 1 is provided with arm pin inserting mechanism, cylinder pin inserting mechanism and arm pin cylinder pin mutual interlocking gear;
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 being 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;
When arm pin T word mouth retracing spring 13 is retracted for realizing arm pin, the T word mouth 3 that helps to pull pin resets, and when arm pin is pulled pin, cylinder rod chamber enters high pressure oil, and the T word mouth 3 of pulling pin moves down, and arm pin is extracted; When 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 arm pin is pulled pin in plunger case 4 is by 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 be equipped with tooth axle 7 and tooth axle 7 one end, 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 one end is connected to T word mouth 3 two bottom sides of pulling pin, and the interlocking connecting rod 9 of basic body 1 is inserted in one end, to pull pin between the cylinder pin piston rod 10 of plunger case 6 be occupy-place mode interlocking structure to interlocking connecting rod 9 and cylinder pin; Described arm pin cylinder pin mutual interlocking gear has been realized cylinder pin 2 must have one of them and arm to keep being connected with arm pin, 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 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 that arm pin can surprisingly not be pulled out, 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 being meshed with gear 8, and cylinder pin retracing spring 11 and the first spring guide 12 resetting 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 being engaged with to move along the pull pin axis direction of plunger case 6 of cylinder pin.
Cylinder pin is pulled pin in process: in the rodless cavity of the plunger case 6 of pulling pin as two cylinder pins of propulsion source, 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 an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (7)
1. two engagement interlocking-type single-cylinder plug pin mechanisms for hoisting crane, comprise the cylinder pin that is arranged on telescopic oil cylinder side and the basic body that cylinder pin is installed, and it is characterized in that: described basic body is provided with arm pin inserting mechanism 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;
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 be equipped with tooth axle and tooth axle one end;
One end of described cylinder pin is with the tooth bar being meshed with gear, and the cylinder pin retracing spring resetting for cylinder pin is equipped with in inside.
2. two engagement interlocking-type single-cylinder plug pin mechanisms for hoisting crane according to claim 1, 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 is also 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 interlocking-type single-cylinder plug pin mechanisms, it is characterized in that: described tooth axle is stepped shaft, its one end is with one section of thread rod, one end is by spline joint gear, axially fixing with circular nut of gear, tooth axle is fixed on basic body by bearing, and tooth axle two ends are provided with end cover.
5. two engagement interlocking-type single-cylinder plug pin mechanisms for hoisting crane according to claim 1, is characterized in that: the working end of described cylinder pin is flat pattern.
6. two engagement interlocking-type single-cylinder plug pin mechanisms for hoisting crane according to claim 1, 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 arbitrary hoisting crane described in 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 and is connected to the interlocking connecting rod of pulling pin on T word mouth, it is occupy-place mode interlocking structure that interlocking connecting rod and cylinder pin are pulled pin between the piston rod of plunger case, cylinder pin is pulled pin in the rodless cavity of plunger case and is provided with aperture, and interlocking connecting rod is extensible through aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320622530.0U CN203558778U (en) | 2013-10-09 | 2013-10-09 | Dual-engagement interlocked single cylinder pin plugging/unplugging mechanism for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320622530.0U CN203558778U (en) | 2013-10-09 | 2013-10-09 | Dual-engagement interlocked single cylinder pin plugging/unplugging mechanism for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203558778U true CN203558778U (en) | 2014-04-23 |
Family
ID=50508511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320622530.0U Withdrawn - After Issue CN203558778U (en) | 2013-10-09 | 2013-10-09 | Dual-engagement interlocked single cylinder pin plugging/unplugging mechanism for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203558778U (en) |
Cited By (2)
| 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 |
| CN104310246A (en) * | 2014-08-27 | 2015-01-28 | 湖南飞涛专用汽车制造有限公司 | Adjustable guide roller apparatus for telescopic cylinder head |
-
2013
- 2013-10-09 CN CN201320622530.0U patent/CN203558778U/en not_active Withdrawn - After Issue
Cited By (2)
| 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 |
| CN104310246A (en) * | 2014-08-27 | 2015-01-28 | 湖南飞涛专用汽车制造有限公司 | Adjustable guide roller apparatus for telescopic cylinder head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140423 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |