CN201313794Y - Pin shaft for connecting tower section of tower crane - Google Patents
Pin shaft for connecting tower section of tower crane Download PDFInfo
- Publication number
- CN201313794Y CN201313794Y CNU2008202203867U CN200820220386U CN201313794Y CN 201313794 Y CN201313794 Y CN 201313794Y CN U2008202203867 U CNU2008202203867 U CN U2008202203867U CN 200820220386 U CN200820220386 U CN 200820220386U CN 201313794 Y CN201313794 Y CN 201313794Y
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- pin
- lock pin
- pin shaft
- bearing pin
- lock
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Abstract
A pin shaft for connecting tower section of a tower crane belongs to the technical field of tower cranes. The pin shaft comprises a pin shaft main body, an introduction part and a lock pin part, the introduction part is positioned between the pin shaft main body and the lock pin part, the cross section of the big end of the introduction part is the same with the pin shaft main body, the cross sections of the small end and the lock pin part are same, and a lock pin slot for fixing the lock pin is formed at the lock pin part along the circumference. The pin shaft has the advantages that the pin shaft has no pin head, thereby saving high-strength metal materials; when the lock pin slot is used for locking the pin, the locking is not limited by directions, and the pin can be locked when the pin shaft is in place; the introduction part is arranged between the pin shaft main body and the lock pin slot, thereby ensuring the lock pin slot not to affect the introduction process of the pin shaft. When the pin shaft is used for connecting the tower section, the lock pin is firstly withdrawn during the detachment of the tower section, then the pin shaft is continuously hit from the outside of the tower section to the inside, and the pin shaft can be withdrawn from the inside of the tower section, thereby providing great convenience for safe operation of workers and greatly improving work efficiency.
Description
Technical field
The invention belongs to the tower crane technical field, particularly relate to a kind of stacker crane body node bonded assembly bearing pin that is used for.
Background technology
At present, the bearing pin of employing bonded assembly is arranged between stacker crane body node, the high strength bolt of employing bonded assembly is also arranged.Adopt the body of the tower joint of tenon or fish plate connection mode, all adopt bearing pin to connect, this mode of operation safe reliability height will connect bearing pin through the position, be located just passablely again, not have the predetermincd tension requirement; Adopt high strength bolt to connect the body of the tower joint, method is simple, but high strength bolt will have suitable predetermincd tension, to guarantee work safety.
Mainly there are following three problems in the bearing pin that is used to connect the body of the tower joint at present:
1. all be that a bearing pin is arranged mostly, and have the hole that fixed pin shaft is used, on the body of the tower joint, be welded with the bearing pin locating bush, on locating bush, also have the bearing pin knock hole at an end of bearing pin.After when connecting, bearing pin being squeezed into connecting bore, insert knock hole on locating bush and the bearing pin, bearing pin is located with locating dowel pin.For the orientation that is used for the bearing pin knock hole on the orientation that guarantees knock hole on the bearing pin and the locating bush consistent, before squeezing into bearing pin, two alignment of a holes must be changed if squeeze into the metapore position, just must back off and squeeze into bearing pin again, have certain degree of difficulty and working strength.
2. this method of attachment when bearing pin is backed off, must be beaten outward from the inside of body of the tower joint, owing to also platform is arranged not all in the body of the tower joint, the workman is bad to be based oneself upon, and just dismounting has brought inconvenience to the body of the tower joint for this.
3. used connection bearing pin all is to make of valuable high-strength alloy steel between the body of the tower joint, and adopting has a bearing pin, must carry out turning with larger-diameter material, causes waste of material.
Summary of the invention
In order to overcome the technical matters that exists in the prior art, the invention provides a kind of stacker crane body node bonded assembly bearing pin that is used for.Adopt this bearing pin to connect the body of the tower joint, make connection mode reasonable, simple in structure, easy accessibility is saved the noble metal material.
The structure of described connection bearing pin comprises the bearing pin main body, introduces partial sum lock pin part, introduce part between bearing pin main body and lock pin part, it is identical with the bearing pin main body to introduce the big end section of part, small end is identical with the cross section of lock pin part, and the lock pin part has the lock pin groove that is used for fixing lock pin along circumference.
The lock pin slot cross-section that described connection bearing pin is opened is indent arc, rectangle or trapezoidal.
Adopt the present invention to connect the body of the tower joint, concrete connection mode is as follows:
1. after body of the tower being saved tenon and inserting the endoporus of major branch end, backing pin is inserted in the backing pin hole on the otic placode;
2. will connect bearing pin and have lock pin groove end and insert in the connecting bore of body of the tower joint major branch, and the lock pin part end that connects bearing pin is contacted with backing pin;
3. lock pin is inserted that locking connects bearing pin in the lockpin hole of otic placode, and lock lock pin with spring cotter;
4. withdraw from backing pin.
The backing pin hole of being opened on the described otic placode is positioned at the corresponding position of connecting pin shaft end, and the lockpin hole of being opened is at least one, and its position is corresponding with the lock pin groove that connects bearing pin.
Beneficial effect of the present invention: connection bearing pin principal feature of the present invention: the one, do not sell head, can save high-strength metal material; The secondth, during with lock pin groove lock pin not the recipient to restriction, connect bearing pin get to the position just can lock pin; The 3rd, introduce part and connecting between bearing pin main body and the lock pin groove, guaranteed that the lock pin groove does not influence the connection bearing pin and introduces process.
Adopt the present invention to connect bearing pin and connect the body of the tower joint, when body of the tower saves dismounting, after earlier lock pin being withdrawed from, connect bearing pin, connect bearing pin and just can withdraw from from the inside of body of the tower joint outside the beating of body of the tower joint to the inside continuation.Great convenience is provided for the safety of workers operation.At first, the workman is operation on the platform of stock outside, does not worry the problem of slipping and dropping from the high-altitude; In addition, the external procedure space is big, swings the hammer operation conveniently, can greatly increase work efficiency.
Description of drawings
Fig. 1 body of the tower joint bearing pin connection mode scheme drawing.
Fig. 2 is the A-A enlarged diagram of Fig. 1.
Fig. 3 is that the K of Fig. 1 is to scheme drawing.
Fig. 4 connecting pin axle construction scheme drawing.
The specific embodiment
Describe the present invention in detail below in conjunction with embodiment and accompanying drawing.
Embodiment:
As shown in Figure 4, structural representation for bearing pin 3 of the present invention, comprise bearing pin main body 10, introduce part 11 and lock pin part 12, introduce part 11 between bearing pin main body 10 and lock pin part 12, bearing pin main body 10 is a cylinder, introducing part 11 is cone table, be connected with lock pin part 12 with the smaller diameter end of introducing part 11, lock pin part 12 is the cylinder along the circumference fluting, and slot is for being used for fixing the lock pin groove of lock pin 5.This routine bearing pin main body 10 is the equal diameter cylinder, is mainly used in the power of transmitting between the body of the tower joint; Introducing part 11 is squeezed at bearing pin 3 has wedge in the process, overcome the micro-position deviation that the connecting bore axis exists on tenon 2 and the body of the tower major branch 1, forces both pin shaft holes coaxial; The lock pin groove that lock pin part 12 is opened is a circular groove, and is just in time corresponding with lockpin hole 9 on the otic placode 4 when work, is used for fixing bearing pin 3.
As shown in Figure 1-Figure 3, adopt bearing pin of the present invention to connect hoisting crane body of the tower joint, comprise the steps:
1. after body of the tower being saved tenon 2 and inserting the endoporus of major branch 1 end, backing pin 7 is inserted in the backing pin hole 8 on the otic placode 4 connection bearing pin 3 length that install as required 8 positions, described backing pin hole and deciding;
2. will connect bearing pin 3 and have lock pin groove end and insert in the connecting bore of body of the tower joint major branch, and the end of the lock pin part 12 that connects bearing pin 3 is contacted with backing pin 7; Show that connecting bearing pin 3 is got to the desired location this moment, connect on the bearing pin 3 the lock pin groove just in time with body of the tower joint end otic placode 4 on the position of the pin-and-hole of unblanking 9 adapt;
3. lock pin 5 is inserted that locking connects bearing pin 3 in the lockpin hole 9 of otic placode 4, and lock lock pins 5 with spring cotter 6; The outside face of the outside face of lock pin 5 and lock pin groove matches, and makes connection bearing pin 3 obtain the location.
4. withdraw from backing pin 7.This has just finished a binding that connects bearing pin.
This routine described spring cotter 6 also can be spring pin.
When the dismounting of body of the tower joint, the spring cotter 6 that will lock lock pin 5 earlier takes off, and extracts lock pin 5 out, no matter still can get connecting bearing pin 3 from body of the tower joint inside from the body of the tower joint is outside then, has finished the operation of withdrawing from of a bearing pin.
As shown in Figure 3, adopt connection mode of the present invention, on described otic placode 4, have backing pin hole 8 and lockpin hole 9, backing pin hole 8 is positioned to install and connects the cooresponding position of its axle head, bearing pin 3 back, lockpin hole 9 is corresponding with the lock pin groove position that connection bearing pin 3 is installed, and is positioned at the one or both sides that connect bearing pin 3 its axis of back are installed.Otic placode 4 also is used to connect the web member of body of the tower joint simultaneously.Its concrete function is when the body of the tower joint connects, and body of the tower joint major branch 1 is connected bearing pin 3 and connects with tenon 2 usefulness, connects 5 lockings of bearing pin 3 usefulness lock pins.The backing pin 7 that the present invention inserts in backing pin hole 8, be guarantee to link the degree of depth that bearing pin 3 squeezes into and be connected bearing pin 3 and lock that the position of lockpin hole 9 adapts on the position of cotter way and the otic placode 4, behind lock pin 5 insertion lockpin holes 9, just in time enter the lock pin groove that connects bearing pin 3, will connect bearing pin 3 lockings.
Backing pin 7 described in the present invention can be selected various versions for use, its objective is to realize interim location, and can conveniently take out.The lock pin slot cross-section that bearing pin 3 is opened can be indent arc, rectangle, different shape such as trapezoidal, and lock pin 5 matches with the lock pin groove of being opened, and is used for fixing to connect bearing pin 3.
Claims (2)
1. one kind is used for stacker crane body node bonded assembly bearing pin, it is characterized in that comprising bearing pin main body (10), introduce part (11) and lock pin part (12), introduce part (11) be positioned at bearing pin main body (10) and lock pin partly (12) between, it is identical with bearing pin main body (10) to introduce the big end section of part (11), small end is identical with the cross section of lock pin part (12), and lock pin part (12) has the lock pin groove that is used for fixing lock pin (5) along circumference.
2. according to the described stacker crane body node bonded assembly bearing pin that is used for of claim 1, it is characterized in that: the lock pin slot cross-section that described connection bearing pin (3) is opened is indent arc, rectangle or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202203867U CN201313794Y (en) | 2008-12-05 | 2008-12-05 | Pin shaft for connecting tower section of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202203867U CN201313794Y (en) | 2008-12-05 | 2008-12-05 | Pin shaft for connecting tower section of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201313794Y true CN201313794Y (en) | 2009-09-23 |
Family
ID=41125585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202203867U Expired - Fee Related CN201313794Y (en) | 2008-12-05 | 2008-12-05 | Pin shaft for connecting tower section of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201313794Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012152196A1 (en) * | 2011-05-06 | 2012-11-15 | 中联重科股份有限公司 | Axial pin |
-
2008
- 2008-12-05 CN CNU2008202203867U patent/CN201313794Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012152196A1 (en) * | 2011-05-06 | 2012-11-15 | 中联重科股份有限公司 | Axial pin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20111205 |