CN201940792U - Pin pulling device - Google Patents
Pin pulling device Download PDFInfo
- Publication number
- CN201940792U CN201940792U CN2010205295961U CN201020529596U CN201940792U CN 201940792 U CN201940792 U CN 201940792U CN 2010205295961 U CN2010205295961 U CN 2010205295961U CN 201020529596 U CN201020529596 U CN 201020529596U CN 201940792 U CN201940792 U CN 201940792U
- Authority
- CN
- China
- Prior art keywords
- pin
- bolt
- pulling out
- out device
- bearing pin
- 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 - Lifetime
Links
Images
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model provides a pin pulling device, which comprises a connection part (11) for connecting the tail of a pin to be pulled with a stretching bolt (21), a bolt stretching mechanism (2) and a support part (12) for supporting the bolt stretching mechanism (2). The pin pulling device has the advantages of flexible and convenient operation and wide application range. Meanwhile, the working cost is effectively lowered and the pulling efficiency of pins is improved by utilizing the pin pulling device.
Description
Technical field
The utility model relates to a kind of pin pulling out device.
Background technology
In derrick crane, the phenomenon of using bearing pin to connect is very general, and particularly the bearing pin between standard knot connects.In practical engineering application, owing to on-the-spot need or, usually need bearing pin is dismantled or changed for the consideration of secure context.At present, traditional dismounting column crane mast section bearing pin method is pin pulling out device is installed on the bearing pin that will dismantle, use sledgehammer that bearing pin is got then, this method mostly is manually-operated, for instrument of beating and dynamics higher requirement is arranged, operate cumbersome, especially after the tower machine uses a period of time, because stressed big and surface corrosion, very inconvenient when standard knot connects the bearing pin dismounting, situation is especially obvious on the bigger bearing pin of diameter, and when pin diameter is big, quality for sledgehammer is also very big with the dynamics requirement of knocking, and has increased task difficulty especially.Especially in the work high above the ground process, need operating personnel that suitable operating space is arranged especially, yet the work high above the ground space is quite limited, this has improved operating personnel's working strength greatly, influenced staff's operant level, and very big potential safety hazard also being arranged for operating personnel itself, operating efficiency is quite low.In addition,, very easily cause certain damage, increased difficulty for especially the operation of pulling pin beating the surface if bearing pin is through knocking repeatedly.
Existing pin pulling out device also has the hydraulic system of employing to pull pin, but because the dynamical system of this pin pulling out device mostly is electronic small pumping station, volume is generally bigger, need consider installation and layout on the tower machine during use.Pumping plant is difficult to move, and needs the long fluid pressure line of configuration, on being fixed on the tower machine after, very inconvenient for the dismounting of target far away, cause many troubles for actual operation.And in the work high above the ground process, install or dismantle pumping plant itself and just have very big danger.The layout of pumping plant also needs to consider powerup issue, has brought inconvenience for especially this pin pulling out device.The cost of this kind method is higher, and is for low end subscriber, also beyond affordability.
The utility model content
The utility model aims to provide a kind of pin pulling out device, to solve existing pin pulling out device operation inconvenience, cost problem of higher.
According to an aspect of the present utility model, a kind of pin pulling out device is provided, comprise bolt tension mechanism, comprise tensile bolt in the bolt tension mechanism, pin pulling out device also comprises connecting portion, and the afterbody of the axle of waiting to pull pin is connected with tensile bolt; The support portion, the carrying bolt drawing mechanism.
Further, tensile bolt passes the support portion and is connected with connecting portion.
Further, the support portion is socketed in outside the connecting portion, and an end of support portion is connected on the working face S that pulls pin other end carrying bolt drawing mechanism.
Further, the support portion has for the axially movable space of connecting portion.
Further, connecting portion comprises the connection pin, is located in the afterbody of bearing pin perpendicular to bearing pin, and stretch out from bearing pin at the two ends of connection pin; Cutting ferrule, the one end is set in the afterbody of bearing pin, and connects with the two ends that are connected pin, and the other end connects tensile bolt.
Further, cutting ferrule comprises first snap portions, along the bearing pin outboard shafts to setting; Second snap portions, corresponding setting with first snap portions; First mid portion connects first snap portions and second snap portions; First snap portions is provided with the jack that is connected bearing pin with the corresponding position of second snap portions; First mid portion has the internal thread hole that matches with tensile bolt.
Further, cutting ferrule is cylindrical, square or the shape of a hoof.
Further, the support portion comprises first support section, is connected on the working face S that pulls pin; Second support section is connected on the working face S that pulls pin, and corresponding setting with first support section; Second mid portion connects first support section and second support section; The relevant position of second mid portion has the through hole that passes for tensile bolt.
Further, first support section of support portion and the second support section relevant position are provided with the perforate that move at the two ends of supply and marketing nail.
Further, bolt tension mechanism comprises bolt tensioning jack, and bolt tensioning jack comprises tensile bolt; Hydraulic hand-pump is connected with bolt tensioning jack.
Because pin pulling out device has the connecting portion that connects wait to pull pin an afterbody and tensile bolt, the support portion of bolt tension mechanism and carrying bolt drawing mechanism, and comprise bolt tensioning jack and hydraulic hand-pump in the bolt tension mechanism, when pin pulling out device is started working, support portion one end is connected on the working face S that pulls pin, because the active force of hydraulic hand-pump, make bolt tensioning jack produce the active force of pulling tensile bolt, under the effect of support portion, because active force and opposition generation relative motion, make tensile bolt pulling bearing pin break away from the bearing pin working position, finish pulling out of bearing pin.This device has overcome pin pulling out device operation inconvenience of the prior art, cost problem of higher.
Description of drawings
Constitute this specification a part, be used for further understanding accompanying drawing of the present utility model and show preferred embodiment of the present utility model, and be used for illustrating principle of the present utility model with specification.Among the figure:
Broken section structural representation when Fig. 1 shows and prepares to pull pin according to the pin pulling out device of embodiment of the present utility model;
Broken section structural representation when Fig. 2 shows and extracts according to the pin pulling out device bearing pin of embodiment of the present utility model;
Fig. 3 shows the broken section structural representation that comprises hydraulic hand-pump according to the pin pulling out device of embodiment of the present utility model.
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As Fig. 1, Fig. 2, shown in Figure 3, according to a kind of pin pulling out device of the present utility model, comprise bolt tension mechanism 2, connecting portion 11, support portion 12, in bolt tension mechanism 2, include the bolt tensioning jack 22 that tensile force is provided and power-actuated hydraulic hand-pump 23 is provided, bolt tensioning jack 22 is provided with tensile bolt 21, the tail end that tensile bolt 21 passes support portion 12 links together connecting portion 11 and bolt tensioning jack 22, and the tensile force of bolt tensioning jack 22 passes to connecting portion 11 by tensile bolt 21, and acts on the axle of waiting to pull pin via connecting portion 11.Hydraulic hand-pump 23 is connected on the bolt tensioning jack by sebific duct, and carries oil pressure by sebific duct to bolt tensioning jack in work.Support portion 12 is socketed on the connecting portion 11, and its end is supporting bolt tensioning jack 22 by the effect of tensile bolt 21, and the other end then is connected on the working face S that pulls pin.In the inner chamber of support portion 12, have for socket connecting portion 11 axially movable spaces within it, when the work of pulling pin is carried out, can provide enough spaces that retreats for connecting portion 11 easily, so that make connecting portion 11 can have enough distances that moves axially to extract bearing pin.Adopt this device, not only can provide enough power for pulling out bearing pin easily, and this power drive is easy to operate, with low cost, can be in a lot of applications.
In the present embodiment, connecting portion 11 comprises cutting ferrule 111 and is connected pin 112, connects the afterbody that pin 112 is located in this bearing pin perpendicular to waiting to pull out bearing pin, and stretch out from bearing pin at the two ends of connection pin 112; Cutting ferrule 111 1 ends are set in the afterbody of waiting to pull out bearing pin, and connect with the two ends that are connected pin 112, and the other end connects tensile bolt.One end of pin 112 has the stopper section, makes pin 112 can play stable connection effect and is unlikely to drop out from pin-and-hole.Under the acting in conjunction of pin 112 and cutting ferrule 111, connecting portion 11 stable being connected are waited to pull out on the bearing pin.
Cutting ferrule 111 comprises along the bearing pin outboard shafts to first snap portions that is provided with, second snap portions of corresponding setting with first snap portions, and first mid portion that connects first snap portions and second snap portions, first snap portions is provided with the jack 113 that is connected described bearing pin with the corresponding position of described second snap portions, and has the internal thread hole that matches with tensile bolt 21 at first mid portion.
As shown in Figure 1, when beginning to pull out bearing pin, at first cutting ferrule 111 is installed on the tensile bolt 21 by being threaded, tightens then, and be enclosed within on the axle of waiting to pull pin, then support portion 12 is passed tensile bolt 21 whole being enclosed within on the cutting ferrule 111.As a kind of optimal way of present embodiment, support portion 12 is selected tube-in-tube structure for use.With connecting the perforate 121 that move at two ends that pin 112 passes the supply and marketing nail 112 on the support portion 12, cutting ferrule 111 is connected on the bearing pin then.Preferably, this perforate 121 is a mounting hole.Oil cylinder in the bolt tensioning jack 22 is screwed on the tensile bolt 21 by the screw thread on the tensile bolt 21, and 12 afterbody holds out against in the support portion to make its base, so far, finishes the installation of pin pulling out device.
As Fig. 2, shown in Figure 3, shake hydraulic hand-pump 23, oil pressure in the hydraulic hand-pump 23 enters in the bolt tensioning jack 22 by connecting sebific duct, make the oil cylinder in the bolt tensioning jack 22 produce the relative motion that separates with base, like this, can make tensile bolt 21, cutting ferrule 111, connect pin 112 and waiting of connecting thereof the axle of pulling pin and produce relative motions with respect to support portion 12, because support portion 12 holds out against in the work of pulling pin motionless all the time, therefore, the bearing pin working face S that pulls pin relatively outwards moves, and the working face S that deviates to pull pin gradually.
The stroke of bolt tensioning jack 22 oil cylinders is extracted the stroke that needs with respect to bearing pin, may be not sufficient to bearing pin is extracted, therefore, after oil cylinder is whenever finished a stroke, need behind release pressure, nut on the oil cylinder and screw rod be tightened again, repeat above action then, repeatable operation like this, bearing pin is extracted from its place pin-and-hole fully the most at last.The range that bearing pin can be extracted is by the size decision of pin pulling out device, the particularly length decision of the two ends of the supply and marketing on the support portion 12 nail 112 perforate 121 of moving, therefore perforate 121 length on the adjustment support portion 12 that can be suitable are adjusted the range that bearing pin can be extracted.
Here need to prove, the above-mentioned working face S that pulls pin refers to, when extracting bearing pin, need support portion 12 to keep static relatively a position, bearing pin then has an outwards action of motion under bolt tensioning jack 22 effects, by the principle of active force and reaction force as can be known, it is static relatively that support portion 12 will keep, needing one stops it with respect to the heterodromous structure of the bearing pin direction of motion, and be used for the surface of supported portion 12 on this structure, the just said working face S that pulls pin here.On tower machine standard knot structure, this working face S that pulls pin refers to is exactly standard knot main chord bearing pin inserting surface or other surfaces of the supported portion 12 that can be used for that is maintained fixed of this inserting surface relatively.
Use after the utility model, pin pulling out device comprises connecting portion, and support portion and bolt tension mechanism comprise tensile bolt in the bolt tension mechanism, bolt tensioning jack and hydraulic hand-pump.This kind pin pulling out device flexible and convenient operation has wide range of applications, and is with low cost, regardless of different kinds of institute's axle of pulling pin, all can it can be pulled out by revising its tail structure by this device, and can control the size of pulling force by hydraulic hand-pump, improved the efficient of pulling out of bearing pin effectively.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a pin pulling out device comprises bolt tension mechanism (2), comprises tensile bolt (21) in the described bolt tension mechanism (2), it is characterized in that described pin pulling out device also comprises:
Connecting portion (11) is connected the afterbody of bearing pin to be extracted with described tensile bolt (21);
Described bolt tension mechanism (2) is supported in support portion (12).
2. pin pulling out device according to claim 1 is characterized in that,
Described tensile bolt (21) passes described support portion (12) and is connected with described connecting portion (11).
3. pin pulling out device according to claim 1 is characterized in that,
Described support portion (12) is socketed in outside the described connecting portion (11), and an end of described support portion (12) is connected on the working face S that pulls pin, and the other end supports described bolt tension mechanism (2).
4. pin pulling out device according to claim 1 is characterized in that, described support portion (12) have for the axially movable space of described connecting portion (11).
5. pin pulling out device according to claim 1 is characterized in that, described connecting portion (11) comprising:
Connect pin (112), be located in the afterbody of described bearing pin perpendicular to described bearing pin, and the two ends of described connection pin (112) are stretched out from described bearing pin;
Cutting ferrule (111), the one end is set in the afterbody of described bearing pin, and connects with the described two ends that are connected pin (112), and the other end connects described tensile bolt (21).
6. pin pulling out device according to claim 5 is characterized in that, described cutting ferrule (111) comprising:
First snap portions, along described bearing pin outboard shafts to setting;
Second snap portions is with the corresponding setting of described first snap portions;
First mid portion connects described first snap portions and described second snap portions;
Described first snap portions is provided with the jack (113) that is connected described bearing pin with the corresponding position of described second snap portions;
Described first mid portion has the internal thread hole that matches with described tensile bolt (21).
7. pin pulling out device according to claim 6 is characterized in that, described cutting ferrule (111) is cylindrical or square.
8. pin pulling out device according to claim 5 is characterized in that: described support portion (12) comprising:
First support section is connected on the working face S that pulls pin;
Second support section is connected on the working face S that pulls pin, and with the corresponding setting of described first support section;
Second mid portion connects described first support section and described second support section;
The relevant position of described second mid portion has the through hole that passes for described tensile bolt (21).
9. pin pulling out device according to claim 8 is characterized in that:
First support section of described support portion (12) and the second support section relevant position are provided with the perforate (121) of moving for the two ends of described pin (112).
10. according to each described pin pulling out device among the claim 1-9, it is characterized in that described bolt tension mechanism (2) comprising:
Bolt tensioning jack (22) comprises described tensile bolt (21);
Hydraulic hand-pump (23) is connected with described bolt tensioning jack (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205295961U CN201940792U (en) | 2010-09-14 | 2010-09-14 | Pin pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205295961U CN201940792U (en) | 2010-09-14 | 2010-09-14 | Pin pulling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201940792U true CN201940792U (en) | 2011-08-24 |
Family
ID=44468143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205295961U Expired - Lifetime CN201940792U (en) | 2010-09-14 | 2010-09-14 | Pin pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201940792U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416560A (en) * | 2011-10-14 | 2012-04-18 | 泰安力博机电科技有限公司 | Built-in hydraulic automatic pin pulling device |
| CN102554870A (en) * | 2011-12-08 | 2012-07-11 | 枣庄矿业集团新安煤业有限公司 | Pin-disassembling jacket head |
| WO2012145975A1 (en) * | 2011-04-28 | 2012-11-01 | 长沙中联重工科技发展股份有限公司 | Pulling pin device |
| CN102897680A (en) * | 2012-10-31 | 2013-01-30 | 徐州重型机械有限公司 | Hinge pin assembling aid for tower crane |
| CN102897678A (en) * | 2012-10-31 | 2013-01-30 | 徐州重型机械有限公司 | Hinge pin disassembling support device for tower crane |
| CN102962812A (en) * | 2012-12-06 | 2013-03-13 | 山东太古飞机工程有限公司 | Mounting tool for fastening pieces of guide rails of seats of passenger cabin of airplane |
| CN103894820A (en) * | 2014-04-23 | 2014-07-02 | 中船第九设计研究院工程有限公司 | Assembling and disassembling device for pin shaft connection |
| CN105798841A (en) * | 2016-04-07 | 2016-07-27 | 枣庄矿业（集团）有限责任公司滨湖煤矿 | Pin dismounting device |
| CN107932419A (en) * | 2017-12-21 | 2018-04-20 | 淮南矿业(集团)有限责任公司 | Hydraulic pressure pin pulling out device and the method pulled pin using the device |
| CN108000426A (en) * | 2017-12-12 | 2018-05-08 | 佛山市鼎翘五金有限公司 | A kind of auxiliary device of the installation of standard knot connecting pin and dismounting |
| CN108262602A (en) * | 2018-03-21 | 2018-07-10 | 上海振华重工(集团)股份有限公司 | A kind of large scale equipment axis pin assembling and disassembling device |
| CN108532472A (en) * | 2018-04-28 | 2018-09-14 | 中交路桥华南工程有限公司 | Rotator construction connection component |
| US20230150074A1 (en) * | 2021-11-15 | 2023-05-18 | Manitowoc Crane Group France | Device for mounting/dismounting a connecting pin used for an end-to-end assembly of two frame elements |
-
2010
- 2010-09-14 CN CN2010205295961U patent/CN201940792U/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012145975A1 (en) * | 2011-04-28 | 2012-11-01 | 长沙中联重工科技发展股份有限公司 | Pulling pin device |
| CN102416560A (en) * | 2011-10-14 | 2012-04-18 | 泰安力博机电科技有限公司 | Built-in hydraulic automatic pin pulling device |
| CN102416560B (en) * | 2011-10-14 | 2013-10-09 | 力博重工科技股份有限公司 | Built-in hydraulic automatic pin pulling device |
| CN102554870A (en) * | 2011-12-08 | 2012-07-11 | 枣庄矿业集团新安煤业有限公司 | Pin-disassembling jacket head |
| CN102897680A (en) * | 2012-10-31 | 2013-01-30 | 徐州重型机械有限公司 | Hinge pin assembling aid for tower crane |
| CN102897678A (en) * | 2012-10-31 | 2013-01-30 | 徐州重型机械有限公司 | Hinge pin disassembling support device for tower crane |
| CN102897680B (en) * | 2012-10-31 | 2015-11-25 | 徐州重型机械有限公司 | A kind of bearing pin auxiliary installation device of tower crane |
| CN102897678B (en) * | 2012-10-31 | 2015-03-11 | 徐州重型机械有限公司 | Hinge pin disassembling support device for tower crane |
| CN102962812B (en) * | 2012-12-06 | 2014-12-03 | 山东太古飞机工程有限公司 | Mounting tool for fastening pieces of guide rails of seats of passenger cabin of airplane |
| CN102962812A (en) * | 2012-12-06 | 2013-03-13 | 山东太古飞机工程有限公司 | Mounting tool for fastening pieces of guide rails of seats of passenger cabin of airplane |
| CN103894820A (en) * | 2014-04-23 | 2014-07-02 | 中船第九设计研究院工程有限公司 | Assembling and disassembling device for pin shaft connection |
| CN105798841A (en) * | 2016-04-07 | 2016-07-27 | 枣庄矿业（集团）有限责任公司滨湖煤矿 | Pin dismounting device |
| CN108000426A (en) * | 2017-12-12 | 2018-05-08 | 佛山市鼎翘五金有限公司 | A kind of auxiliary device of the installation of standard knot connecting pin and dismounting |
| CN107932419A (en) * | 2017-12-21 | 2018-04-20 | 淮南矿业(集团)有限责任公司 | Hydraulic pressure pin pulling out device and the method pulled pin using the device |
| CN108262602A (en) * | 2018-03-21 | 2018-07-10 | 上海振华重工(集团)股份有限公司 | A kind of large scale equipment axis pin assembling and disassembling device |
| CN108532472A (en) * | 2018-04-28 | 2018-09-14 | 中交路桥华南工程有限公司 | Rotator construction connection component |
| US20230150074A1 (en) * | 2021-11-15 | 2023-05-18 | Manitowoc Crane Group France | Device for mounting/dismounting a connecting pin used for an end-to-end assembly of two frame elements |
| US11951577B2 (en) * | 2021-11-15 | 2024-04-09 | Manitowoc Crane Group France | Device for mounting/dismounting a connecting pin used for an end-to-end assembly of two frame elements |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201940792U (en) | Pin pulling device | |
| CN206445477U (en) | A kind of bearing press | |
| CN102152100A (en) | Pull pin device | |
| CN203171535U (en) | Axial withdrawal tool of hinge pin | |
| CN201645137U (en) | Tightening device used for assembling oil cylinder | |
| CN201659539U (en) | Engine cylinder liner holding-down device | |
| CN103203717A (en) | High-pressure safety valve disassembling tool | |
| CN108705479B (en) | Hole well spanner | |
| CN102328197A (en) | Hydraulic automatic pin pulling device | |
| CN201031126Y (en) | Hoctonspheres inside operation platform | |
| CN105751150A (en) | Pin pulling device for cubic diamond press | |
| CN201552543U (en) | Joint bearing disassembly and assembly tool | |
| CN202015927U (en) | Bearing disassembly combined device | |
| CN102616696A (en) | Assembled continuous lifting jack for finish-rolling threaded steel bar vertical columns | |
| CN202498507U (en) | Device for assembling and disassembling air valve of junk head of engine | |
| CN215510812U (en) | Convenient bearing dismounting mechanism for steering shaft in drilling machine | |
| CN202292057U (en) | Built-in hydraulic automatic pin pulling device | |
| CN109895022A (en) | A kind of dismounting of rolling mill main motor safety pin and replacing options | |
| CN210281302U (en) | Hydraulic dismounting tool for engine cylinder sleeve | |
| CN201324934Y (en) | Hydraulic spring exerciser | |
| CN206090558U (en) | Hydraulic pressure single cylinder tensioner | |
| CN102416560B (en) | Built-in hydraulic automatic pin pulling device | |
| CN205765935U (en) | Clutch puller | |
| CN211414983U (en) | Quick dismounting device for pulser filter screen | |
| CN202592312U (en) | Taper sleeve disassembly device for jaw crusher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Address before: 410013 No. 361 South silver basin, Hunan, Changsha Patentee before: Chang Sha Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
|
| CX01 | Expiry of patent term |