CN203266060U - Tool specially used for pulling out pin shaft - Google Patents

Tool specially used for pulling out pin shaft Download PDF

Info

Publication number
CN203266060U
CN203266060U CN 201320348327 CN201320348327U CN203266060U CN 203266060 U CN203266060 U CN 203266060U CN 201320348327 CN201320348327 CN 201320348327 CN 201320348327 U CN201320348327 U CN 201320348327U CN 203266060 U CN203266060 U CN 203266060U
Authority
CN
China
Prior art keywords
frame
bearing pin
nut
tool
pulling
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.)
Expired - Fee Related
Application number
CN 201320348327
Other languages
Chinese (zh)
Inventor
刘健
所文升
宋保国
王新亭
郭贞来
徐占涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinan Iron and Steel Group Co Ltd
Original Assignee
Jinan Iron and Steel Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jinan Iron and Steel Group Co Ltd filed Critical Jinan Iron and Steel Group Co Ltd
Priority to CN 201320348327 priority Critical patent/CN203266060U/en
Application granted granted Critical
Publication of CN203266060U publication Critical patent/CN203266060U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a hydraulic tool, in particular to a tool used in a narrow space and particularly to a tool specially used for pulling out a pin shaft. The tool comprises a nut fixed on the pin shaft and a pulling mechanism matched with the nut, wherein the pulling mechanism comprises a pulling frame and a C-shaped frame which are sleeved with each other; a through hole is formed in the side wall, which is sleeved with the C-shaped frame, of the pulling frame; a bolt with a screw cap penetrates into the through hole; a hydraulic jack is arranged in the pulling frame and is arranged between the pulling frame and the C-shaped frame. The tool is simple in structure and can be manufactured by local materials on the spot; the maximum pulling force can be obtained in a small space; the whole stress is balanced; the use safety is high.

Description

Bearing pin is extracted specific purpose tool
Technical field
The utility model relates to hydraulic tool, and in particular for the instrument that uses in small space, specifically a kind of bearing pin is extracted specific purpose tool.
Background technology
Often run into the situation of the bearing pin of choosing in maintenance of equipment, because the bearing pin reason bearing pins such as the bearing pin working space is little that get rusty, choose are difficult to take out.Because large hydraulic support volume weight is larger, install in small space again, but bearing pin is not because there is no impetus, extremely be difficult to fixing and extract.Simultaneously can't use over there jack directly to eject again, or pound with a hammer out etc.In a lot of these type of situations, generally adopt gas cutting to melt bearing pin, or the destructive way of removing of other parts is removed.No matter be melt bearing pin or destroy the bearing pin parts, be all that equipment has been caused the injury that can't repair, can directly cause the damage of equipment when serious, bring about great losses.But existing drawing equipment is generally larger, some adopts the double-cylinder hydraulic jack simultaneously, can't keep especially the balance of jack in narrow space, although the existing equipment dynamics can reach requirement simultaneously, common drawing equipment can't effectively link together bearing pin and drawing axle.Therefore lack a kind of can the use in small space, pin that can on-the-spot combination takes out instrument.
Summary of the invention
The purpose of this utility model is exactly in order to solve an existing difficult problem, and the occasion to not taking out bearing pin with jack immediate roof, the conventional instrument such as pound with a hammer provides a kind of bearing pin to extract specific purpose tool.
The technical solution of the utility model is: a kind of bearing pin is extracted specific purpose tool, comprise the nut that is fixed on bearing pin, and the drawing mechanism that coordinates with nut, described drawing mechanism comprises drawing frame and the C type frame that mutually connects together, have through hole on the drawing frame with on the sidewall of C type frame socket place, be penetrated with nut bolt in through hole; In described drawing frame, hydraulic jack is installed, jack is arranged between drawing frame and C type frame.
In order to keep assembly can not produce the phenomenons such as deflection in loading process, use safety, described jack axis and bearing pin axis are point-blank.
For bearing pin and drawing frame being linked together, the end of thread of described bolt and described nut are connected, and the maximum outside diameter of described nut is less than the bearing pin external diameter.
For bearing pin and nut being fixed, described nut-welding is at an end of bearing pin, and the center line of nut overlaps with the center line of bearing pin.Described drawing frame and C type frame are rectangle frame, adopt Plate Welding to form.
In order to increase the coverage of drawing bearing pin work, the free end of described C type frame is provided with movable cushion block.
The beneficial effects of the utility model can draw by such scheme: owing to adopting drawing frame and the C type frame that mutually connects together, in described drawing frame, hydraulic jack is installed, jack is arranged between drawing frame and C type frame, simple and reliable for structure, can be used in combination at the scene, and the effect by jack can make between drawing frame and C type frame and produce displacement, reaches the purpose of pulling out bearing pin.The utility model also can be according to the large I design different size bearing pin drawbench of bearing pin applicable to the bearing pin taking-up work of diameter greater than 20 millimeters; Be particularly useful for: owing to being subjected to the effects limit such as space, this body structure of equipment, the occasion that can not take out bearing pin with jack immediate roof, the conventional instrument such as pound with a hammer.And the utility model is simple in structure, and the making of can the scene gathering materials on the spot can obtain draft in little space, whole stress equalization, and safety in utilization is good.
This shows, the utility model compared with prior art has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
Description of drawings:
Fig. 1 is the organigram of tool embodiment of the present utility model;
Fig. 2 is the cross-sectional schematic of Fig. 1.
Fig. 3 is the organigram of drawing frame;
Fig. 4 is the organigram of C type frame.
Wherein, 1 is the drawing frame, and 2 is jack, and 3 is C type frame, and 4 is bolt, and 5 is nut, and 6 is cushion block, and 7 is bearing pin.
The specific embodiment:
In order to understand better the utility model, explain in detail embodiment of the present utility model below in conjunction with accompanying drawing.
The specific embodiment: as shown in Figure 1, a kind of bearing pin is extracted specific purpose tool, comprise the nut 5 that is fixed on bearing pin 7, and the drawing mechanism that coordinates with nut 5, described drawing mechanism comprises drawing frame 1 and the C type frame 3 that mutually connects together, described drawing frame 1 and C type frame 3 are rectangle frame, adopt Plate Welding to form.Have through hole on drawing frame 1 with on the sidewall of C type frame 3 socket places, be penetrated with nut bolt 4 in through hole; In described drawing frame 1, hydraulic jack 2 is installed, jack 2 is arranged between drawing frame 1 and C type frame 3.Described jack 2 axis and bearing pin 7 axis are point-blank.The end of thread of described bolt 4 and described nut 5 are connected, and nut-welding hits exactly at pin roll end face, and nut 5 appearance and sizes are not more than bearing pin 7 external diameters, and bolt 4 passes through hole and is being connected with nut 5.Described nut-welding is at an end of bearing pin, and the center line of nut 5 overlaps with the center line of bearing pin 7.During use, when C type frame 3 was highly not enough, the free end pad of C type frame 3 added movable cushion block 6 again.
During use, first nut 5 is welded on bearing pin 7 end faces and hits exactly, then the through hole that passes on drawing frame 1 with bolt 4 is connected with nut 5.C type frame 3 is enclosed within the side that drawing frame 1 has through hole, is placed on apparatus body.Jack 2 is placed between C type frame 3 upper surfaces and drawing frame 1, and jack 2 bases are placed on the upper surface of C type frame 3, the push rod of jack 2 withstand on drawing frame 1 without through hole one side inner surface.Under the effect of jack 2, because C type frame 3 is pressed on apparatus body, can not displacement, at this moment only have the drawing frame 1 can displacement, drive bolt 4, nut 5, bearing pin 7 by drawing frame 1 and move outside apparatus body.After drawing frame 1 moves a stroke, can add the cushion block 6 of uniform thickness below C type frame, or change corresponding C type frame 3, then press jack 2, until extract bearing pin 7.
Above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.

Claims (6)

1. a bearing pin is extracted specific purpose tool, comprise the nut that is fixed on bearing pin, and the drawing mechanism that coordinates with nut, it is characterized in that: described drawing mechanism comprises drawing frame and the C type frame that mutually connects together, have through hole on the drawing frame with on the sidewall of C type frame socket place, be penetrated with nut bolt in through hole; In described drawing frame, hydraulic jack is installed, jack is arranged between drawing frame and C type frame.
2. bearing pin as claimed in claim 1 is extracted specific purpose tool, it is characterized in that: described jack axis and bearing pin axis are point-blank.
3. bearing pin as claimed in claim 2 is extracted specific purpose tool, it is characterized in that: the end of thread of described bolt and described nut are connected, and the maximum outside diameter of described nut is less than the bearing pin external diameter.
4. bearing pin as claimed in claim 3 is extracted specific purpose tool, it is characterized in that: described nut-welding is at an end of bearing pin, and the center line of nut overlaps with the center line of bearing pin.
5. bearing pin as claimed in claim 1 is extracted specific purpose tool, it is characterized in that: described drawing frame and C type frame are rectangle frame, adopt Plate Welding to form.
6. bearing pin as claimed in claim 1 is extracted specific purpose tool, it is characterized in that: the free end of described C type frame is provided with movable cushion block.
CN 201320348327 2013-06-18 2013-06-18 Tool specially used for pulling out pin shaft Expired - Fee Related CN203266060U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320348327 CN203266060U (en) 2013-06-18 2013-06-18 Tool specially used for pulling out pin shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320348327 CN203266060U (en) 2013-06-18 2013-06-18 Tool specially used for pulling out pin shaft

Publications (1)

Publication Number Publication Date
CN203266060U true CN203266060U (en) 2013-11-06

Family

ID=49496549

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320348327 Expired - Fee Related CN203266060U (en) 2013-06-18 2013-06-18 Tool specially used for pulling out pin shaft

Country Status (1)

Country Link
CN (1) CN203266060U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286550A (en) * 2013-06-18 2013-09-11 济钢集团有限公司 Tool for pulling out pin shafts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286550A (en) * 2013-06-18 2013-09-11 济钢集团有限公司 Tool for pulling out pin shafts

Similar Documents

Publication Publication Date Title
CN203266060U (en) Tool specially used for pulling out pin shaft
CN203227961U (en) Clamping device for welding of arm bodies
CN103192219B (en) A kind of arm body welding clamping device
CN103286550A (en) Tool for pulling out pin shafts
CN101352737A (en) Single oil cylinder underneath type hydraulic type three roller machine for bending metal sheet
CN203603668U (en) Hydraulic type radar cabin opening device
CN204354065U (en) For nuclear power station plant equipment alignment pin extracting apparatus
CN202040148U (en) Novel supporting structure
CN204353733U (en) A kind of large-scale jaw crushing machine part installation and maintenance instrument
CN2774697Y (en) Roller press sleeve machine
CN203371243U (en) Automobile steering knuckle vertical shaft disassembling machine
CN203018995U (en) Device for pulling out piston and cylinder barrel of 6-surface diamond presser
CN203495534U (en) Remote-control hydraulic shaft taking device
CN202894703U (en) Press machine used for assembling and disassembling bearing and coupling
CN203266070U (en) Extruder charging barrel dismantling device
CN210523793U (en) Mechanical platform breaks separator
CN201978972U (en) Lower roll elevating mechanism of section-straightening machine
CN205342092U (en) Off line is pressed to metal base spindle
CN203510092U (en) Chain plate installer of chain
CN204052362U (en) A kind of oblique milling roller arrangement of pipe mill
CN205685251U (en) Fluid pressure type water circulating pump box coupling provision for disengagement
CN205734681U (en) Bearing pin is removed and is extracted specific purpose tool
CN205799380U (en) The device of dismounting double helical tooth safety coupling
CN103580395B (en) Oil press for lamination compaction
CN207273126U (en) A kind of specific purpose tool of underground dismounting axis pin

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131106

Termination date: 20170618

CF01 Termination of patent right due to non-payment of annual fee