CN211423118U - Steel bushing for preventing pin shaft from moving outwards - Google Patents
Steel bushing for preventing pin shaft from moving outwards Download PDFInfo
- Publication number
- CN211423118U CN211423118U CN201921998313.5U CN201921998313U CN211423118U CN 211423118 U CN211423118 U CN 211423118U CN 201921998313 U CN201921998313 U CN 201921998313U CN 211423118 U CN211423118 U CN 211423118U
- Authority
- CN
- China
- Prior art keywords
- steel sleeve
- pin shaft
- steel
- opening
- sleeve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model relates to the technical field of engineering equipment, in particular to a steel bushing for preventing a pin shaft from jumping outwards; the steel sleeve comprises a steel sleeve body, wherein the steel sleeve body is a circular ring cylinder with an opening, the opening of the steel sleeve is provided with a chamfer which is installed in a matched mode, and a line segment formed by two end points of an outer ring on the same plane on the steel sleeve body is arranged outside a line segment formed by two end points of an inner ring; because the clearance between the pin shaft and the fishplate is too small and the size is not fixed, the steel bushing for preventing the pin shaft from jumping outwards is provided with an opening for avoiding the fishplate, so that the steel bushing is more convenient to install, and when the tower crane pin shaft is checked to jump outwards, the manpower and material resources consumed when the pin shaft is checked to jump outwards can be reduced, the working time is reduced, and the construction safety is improved; meanwhile, the installation and the disassembly are convenient, and the outward movement of the pin shaft can be effectively prevented during construction.
Description
Technical Field
The utility model belongs to the technical field of engineering equipment technique and specifically relates to a prevent that round pin axle scurries steel bushing outward.
Background
Along with the development of the national building industry, the use of tower cranes is increasing, the standard joints of the existing tower cranes are usually connected through pin shafts, the pin shafts are fixedly connected by using vertical pins, and because connecting holes between the standard joints are enlarged, gaps between holes and the pins are enlarged, the tower cranes drive the pin shafts to move outwards under the action of various alternating loads during lifting, rotation and amplitude variation of the tower cranes during independent or joint work, although the moving quantity is very small, the vertical pins can be bent or even broken due to small accumulation, and potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: in order to solve the problem that a pin shaft is shifted outwards when a tower crane operates, the pin shaft outward shifting preventing steel bushing is provided, the problem that the pin shaft is shifted outwards can be solved, the pin shaft outward shifting preventing steel bushing can be quickly installed, detached and reused, the working safety of the tower crane can be improved, the follow-up rectification and modification are reduced, and the construction requirement is met.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a prevent that round pin axle scurries steel bushing outward, includes the steel bushing body, the steel bushing body is the ring cylinder that has the open-ended, be equipped with the chamfer of cooperation installation on the steel bushing opening.
Furthermore, a line segment formed by two end points of the outer ring on the same plane on the steel sleeve body is outside a line segment formed by two end points of the inner ring.
Further, the thickness of the steel sleeve body is 3mm-4 mm.
Further, the inner diameter of the steel sleeve body is 51mm, the length L1 between two end points of the inner ring at the opening is 30mm, the width of the steel sleeve is 14mm, and the length L2 of the opening from the center is 20 mm.
Furthermore, the inner diameter of the steel sleeve body is 56mm, the length L1 between two end points of the inner ring at the opening is 35mm, the width of the steel sleeve is 20mm, and the length L2 of the opening from the center is 22 mm.
Further, the inner diameter of the steel sleeve body is 66mm, the length L1 between two end points of the inner ring at the opening is 45mm, the width of the steel sleeve is 24mm, and the length L2 of the opening from the center is 23 mm.
Further, the angle of the chamfer is 45 degrees.
Further, the ratio of the length of the right-angle side of the chamfer to the height of the steel sleeve is 1: (1.5-2).
Further, the material of the steel sleeve is 20 # steel.
Furthermore, an anti-rust layer is arranged on the surface of the steel sleeve.
Adopt the technical scheme of the utility model's beneficial effect is:
the anti-jumping-out steel sleeve for the pin shaft in the utility model can reduce the manpower and material resources consumed during the outward jumping inspection of the pin shaft of the tower crane during the outward jumping inspection of the pin shaft, reduce the working time and improve the safety of construction; the steel sleeve for preventing the pin shaft from jumping outwards is convenient to mount and dismount, and the pin shaft can be effectively prevented from jumping outwards during construction.
The utility model provides a prevent that round pin axle scurries the steel bushing outward, the steel bushing body is for having the open-ended ring cylinder, and the line segment that the outer loop both ends point that is in the coplanar on the steel bushing body constitutes is outside the line segment that inner ring both ends point constitutes, because the clearance between round pin axle and the fishplate is too little and the size is unfixed, so be used for avoidng the fishplate through the design opening, it is more convenient when making the steel bushing installation.
The utility model provides a steel bushing is scurried outward to anti-pin axle, is equipped with the chamfer of cooperation installation on the opening of steel bushing body, because the fishplate is the forging, has the circular arc to exist between two vertical plates of inboard, so also improved the installation effectiveness of steel bushing when the fishplate is avoided to the chamfer on the steel bushing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein the content of the first and second substances,
fig. 1 is a side view of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a three-dimensional schematic diagram of the present invention.
Fig. 4 is a three-dimensional schematic diagram of the utility model after installation.
In the figure: 1. a standard section; 2. a fishplate; 3. erecting a pin; 4. steel jacket; 5. a pin shaft; 21. an opening; 22. and (6) chamfering.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The utility model adopts the technical proposal that:
as shown in fig. 1-4, in this embodiment, the steel sleeve 4 is made of steel No. 20, because the toughness, plasticity and weldability of steel No. 20 are good, the steel sleeve 4 body is a circular cylinder with an opening 21, a line segment formed by two end points of an outer ring on the same plane on the steel sleeve 4 body is outside a line segment formed by two end points of an inner ring, the thickness of the opening 21 is 3mm-4mm, preferably 3mm, and other parts such as 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm and 3.9mm fall into the protection range of the present invention; because the clearance between round pin axle 5 and the fishplate 2 is too little and the size is unset, so be used for evading fishplate 2 through design opening 21, it is more convenient to make the installation of steel bushing 4, the opening 21 department of steel bushing 4 is equipped with the chamfer 22 of cooperation installation, because fishplate 2 is the forging, there is the circular arc to exist between two vertical plates of inboard, so also improved the installation effectiveness of steel bushing 4 when steel bushing 4 goes up chamfer 22 and avoids fishplate 2, the angle value of chamfer 22 is 45, the ratio of the right angle length of side of chamfer 22 and the height of steel bushing 4 body is 1: (1.5-2), the specific proportion is determined according to actual production needs, and the surface of the steel sleeve in the embodiment is provided with the anti-rust layer, the anti-rust layer is preferably a zinc coating layer, and the thickness range of the anti-rust layer is 0.01mm-0.02 mm.
As shown in fig. 1-4, the steel bushing for preventing the steel pin shaft from jumping outwards in the present invention has the inner diameter and the width of the steel bushing 4 determined according to the pin shaft 5 used on the standard joint 1, so the pin shaft 5 has three types of values, when the diameter of the pin shaft 5 is 65mm, the inner diameter of the steel bushing 4 is 66mm, and the width is 24 mm; when the diameter of the pin shaft 5 is 55 mm, the inner diameter of the steel sleeve 4 is 56mm, and the width is 20 mm; when the diameter of the pin shaft 5 is 50, the inner diameter of the steel jacket 4 is 51mm and the width is 14mm, and since the inner diameter and the width of the steel jacket 4 are determined according to the diameter of the pin shaft 5, the distance from the center of the steel jacket 4 to the opening is changed accordingly.
Fig. 4 is a three-dimensional schematic diagram of the utility model after installation.
The installation method of the anti-channeling steel sleeve outside the pin shaft comprises the following steps: at first with standard festival 1 installation back of adjusting well, pass the one end of round pin axle 5 from the hole on the fishplate 2 and connect on standard festival 1, because the clearance between round pin axle 5 and the fishplate 2 is too little and the size is unset, so the utility model discloses well steel bushing 4 is used for evading the fishplate through design opening 22, and the opening 22 department of steel bushing 4 is equipped with the chamfer 22 of cooperation installation, because the fishplate 2 is the forging piece, has the circular arc to exist between two perpendicular boards of inboard, so the existence of chamfer 22 can let steel bushing 4 install more conveniently, then install steel bushing 4 on round pin axle 5, because the line segment that the outer loop both ends point that is in the coplanar on the steel bushing 4 body constitutes is outside the line segment that inner ring both ends point constitutes, so simple to operate, wear upright round pin 3 at last, this steel bushing 4 can effectively prevent the effect of beating outward of round pin axle 5.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a prevent that round pin axle scurries steel bushing outward which characterized in that: the steel sleeve comprises a steel sleeve body, wherein the steel sleeve body is a circular cylinder with an opening, and a chamfer is arranged on the opening of the steel sleeve in a matched manner; the steel sleeve body is provided with a steel sleeve body, and the steel sleeve body is provided with a steel sleeve body and a steel sleeve body.
2. The anti-channeling steel sleeve outside the pin shaft as set forth in claim 1, wherein: the thickness of the steel sleeve body is 3mm-4 mm.
3. The anti-channeling steel sleeve outside the pin shaft as set forth in claim 1, wherein: the inner diameter of the steel sleeve body is 51mm, the length L1 between two end points of the inner ring at the opening is 30mm, the width of the steel sleeve is 14mm, and the length L2 of the opening from the center is 20 mm.
4. The anti-channeling steel sleeve outside the pin shaft as set forth in claim 1, wherein: the inner diameter of the steel sleeve body is 56mm, the length L1 between two end points of the inner ring at the opening is 35mm, the width of the steel sleeve is 20mm, and the length L2 of the opening from the center is 22 mm.
5. The anti-channeling steel sleeve outside the pin shaft as set forth in claim 1, wherein: the inner diameter of the steel sleeve body is 66mm, the length L1 between two end points of the inner ring at the opening is 45mm, the width of the steel sleeve is 24mm, and the length L2 of the opening from the center is 23 mm.
6. The anti-channeling steel sleeve outside the pin shaft as set forth in claim 1, wherein: the angle of the chamfer is 45 degrees.
7. The anti-channeling steel sleeve outside the pin shaft as claimed in claim 6, wherein: the ratio of the length of the right-angle side of the chamfer to the height of the steel sleeve is 1: (1.5-2).
8. The anti-channeling steel sleeve outside the pin shaft as set forth in claim 1, wherein: the steel sleeve is made of 20 # steel.
9. The anti-channeling steel sleeve outside the pin shaft as set forth in claim 1, wherein: and an anti-rust layer is arranged on the surface of the steel sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921998313.5U CN211423118U (en) | 2019-11-19 | 2019-11-19 | Steel bushing for preventing pin shaft from moving outwards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921998313.5U CN211423118U (en) | 2019-11-19 | 2019-11-19 | Steel bushing for preventing pin shaft from moving outwards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211423118U true CN211423118U (en) | 2020-09-04 |
Family
ID=72288868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921998313.5U Active CN211423118U (en) | 2019-11-19 | 2019-11-19 | Steel bushing for preventing pin shaft from moving outwards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211423118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112661028A (en) * | 2020-12-30 | 2021-04-16 | 江西中天智能装备股份有限公司 | Tower crane standard festival and connecting device |
-
2019
- 2019-11-19 CN CN201921998313.5U patent/CN211423118U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112661028A (en) * | 2020-12-30 | 2021-04-16 | 江西中天智能装备股份有限公司 | Tower crane standard festival and connecting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211423118U (en) | Steel bushing for preventing pin shaft from moving outwards | |
| CN102926504B (en) | Construction method of steel and concrete overlapped beam combined part | |
| CN203927058U (en) | A kind of tube orientation with limit function drills more uses back bracket | |
| CN201330507Y (en) | Arm section and arm for concrete pumping device | |
| CN202187430U (en) | Rotatable bailey special joint | |
| CN205061103U (en) | Novel throwing roller | |
| CN204823746U (en) | Crane girder tip structure | |
| CN208778470U (en) | A kind of assembling crankshaft | |
| CN204434123U (en) | Tower body in tower crane resistance to deformation | |
| CN102705330B (en) | Pin shaft, mounting structure for pin shaft, and concrete pumping equipment | |
| CN203794503U (en) | Mounting and locating device for amplitude-change pulley block and rotary table and crawler crane | |
| CN203794501U (en) | Tower crane and standard knot thereof | |
| CN105460492A (en) | Conveying belt structure used for machinery | |
| CN206600417U (en) | C-shaped hook formula endless chain connector | |
| CN204062149U (en) | A kind of tube orientation drills more uses back bracket | |
| CN209443309U (en) | A kind of fish platee connected for wearing rail | |
| CN206670375U (en) | The compound necking plate of cement kiln preheaters smoke-box necking position multielement | |
| CN218719729U (en) | Anti-sticking wear-resisting plate | |
| CN210105437U (en) | Holding pole anti-abrasion fixing device | |
| CN209428943U (en) | A kind of shallow embedding formula bridge extension joint | |
| CN212361100U (en) | Hydraulic joint convenient to install | |
| CN209818555U (en) | Integral retainer for roller type slewing bearing | |
| CN217331127U (en) | Stable vertical displacement monitoring sign | |
| CN217653661U (en) | Composite section bar with strong compression resistance | |
| CN212955982U (en) | Fishplate with stronger stress resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213200 room 223, 168 Huacheng Middle Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Zhongjian Dafeng Mechanical Engineering Co.,Ltd. Address before: 213200 room 223, 168 Huacheng Middle Road, Jintan District, Changzhou City, Jiangsu Province Patentee before: JIANGSU ZHONGJIAN DAFENG MACHINERY ENGINEERING CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |