CN203495859U - Puller - Google Patents
Puller Download PDFInfo
- Publication number
- CN203495859U CN203495859U CN201320638205.3U CN201320638205U CN203495859U CN 203495859 U CN203495859 U CN 203495859U CN 201320638205 U CN201320638205 U CN 201320638205U CN 203495859 U CN203495859 U CN 203495859U
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- CN
- China
- Prior art keywords
- bearing
- handle
- pull bar
- drawbench
- rod
- 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
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- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000009987 spinning Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 18
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010036 direct spinning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
The utility model relates to a puller. The puller comprises a support and a pulling rod which is arranged on the support vertically in a penetrating mode, a handle is arranged on the pulling rod in a screwed mode, the support is provided with a stopping structure, the stopping structure is used for being matched with the handle in a stopping mode so as to limit the downward moving extremity of the handle, the upper end of the pulling rod is provided with an external thread used for achieving screwed installation of the handle, the lower end of the pulling rod is provided with a thread connection structure used for being in thread connection with a corresponding to-be-pulled workpiece, the pulling rod is provided with a plain shaft structure between the external thread and the thread connection structure, and a separation distance adjusting mechanism used for adjusting the vertical distance between the stopping structure and the handle is arranged on the support. The puller has the advantages that threads of screws are not prone to abrasion and universality is high.
Description
Technical field
The utility model relate to a kind of can output shaft to the drawbench of pulling capacity.
Background technology
Double-pipe chiller is production equipment common in oil refining system, the quantity of the sleeve pipe in one covering device between tens to tens not etc., every double-pipe chiller is all multilayer, its power transmission shaft number is many, in each periodicity scheduled overhaul, the most bothersome, time-consuming, effort be exactly the withdrawal process of power transmission shaft, extracting of power transmission shaft need to apply pulling capacity vertically to power transmission shaft by special drawbench.Publication number is that CN201625950U discloses a kind of " drawbench ", this drawbench comprises bearing, on bearing, be provided with the perforation that runs through bearing upper and lower end face, in perforation, be equipped with the screw rod of full thread, on screw rod, be installed with handle, on bearing, offer deep gouge structure with the corresponding position of handle, at its lower end, in deep gouge structure, be provided with handle, at its lower end and support the thrust bearing coordinating.The use procedure of this drawbench is: first pedestal is positioned on corresponding workpiece assembling seat to be drawn, upper end input torque to screw rod, screw rod lower end is threaded with corresponding workpiece to be drawn, then rotary handle, handle moves down until the lower end of handle coordinates and can not move down with the thrust of thrust bearing upper end along screw rod, continue rotary handle, pull bar moves up under the effect of rotary handle, thereby workpiece to be drawn is pulled out.Existing this drawbench can be treated and draw workpiece to apply axial pulling capacity, therefore can be for the drawing of power transmission shaft in double-pipe chiller, but the problem that existing this drawbench exists is: 1, screw rod with corresponding after drawing workpiece to be threaded, because the height of bearing can not be adjusted, therefore must make handle along screw rod, move down until coordinate with thrust bearing thrust, and in order to make handle have larger mobile adjustable range, so must use this full thread structure of pull bar, full thread structure has increased the manufacture difficulty of associated workpiece on the one hand, on the other hand, drawbench in use, can make part screw thread because damaging with the friction of perforation hole wall, after thread damage, just cannot guarantee that handle can also have previous mobile adjustable range, thereby reduced the versatility of drawbench, when serious, must change after screw rod, drawbench could continue to use, 2, thrust bearing is arranged in the deep gouge structure being arranged on bearing, and arranging of deep gouge structure one convenient can make bearing must have thicker thickness, and it is very heavy that bearing can become, and deep gouge structure also can reduce the structural strength of bearing on the other hand.
Summary of the invention
The purpose of this utility model is to provide the drawbench of the not easy to wear and highly versatile of screw thread on a kind of screw rod.
In order to address the above problem, the technical solution of the utility model is:
A kind of drawbench, comprise bearing and be threaded onto along the vertical direction the pull bar on bearing, on pull bar, be installed with handle, on bearing, be provided with and for coordinating with handle block, limit the Stop structure that handle moves down the limit, the upper end of pull bar is provided with the external screw thread of realizing described handle spinning, the lower end of pull bar is provided with the screw connection structure for being threaded with corresponding workpiece to be drawn, it on described pull bar, between external screw thread and screw connection structure, is plain shaft structure, on described bearing, be provided with for regulating the distance regulating mechanism of described Stop structure and the handle spacing on above-below direction.
Described distance regulating mechanism comprises the adjusting screw(rod) that at least two axis extend along the vertical direction, and each adjusting screw(rod) all has bearing link and the mount pad pushing end for coordinating with corresponding workpiece assembling seat pushing tow to be drawn being threaded with described bearing.
Described bearing comprises force bearing plate and is fixedly arranged on the supporting leg that force bearing plate lower end and length are extended along the vertical direction, and the number of supporting leg is identical with the number of adjusting screw(rod), and the bearing link of each adjusting screw(rod) is distinguished spinning on corresponding supporting leg.
In each supporting leg, be all fixedly installed and be useful on the adjusting nut of realizing corresponding adjusting screw(rod) spinning.
Described Stop structure comprises the annular boss that is located on described pull bar periphery, the lower end of described handle is provided with the thrust bearing that axis extends along the vertical direction, and described thrust bearing has the upper bearing (metal) circle being connected with described handle and the lower bearing circle coordinating for the upper surface pushing tow with described annular boss.
Described handle comprises the cross bar that length is vertical with above-below direction, and pull bar is arranged in the middle part of described cross bar, and at least one end of cross bar is provided with main rocker.
The top of described pull bar is provided with secondary rocking bar.
Described screw connection structure comprises the connecting bushing that axis extends along the vertical direction, at least one end endoporus of connecting bushing, is provided with the internal thread for being threaded with workpiece to be drawn.
The two ends of connecting bushing are provided with described internal thread, the lower end of pull bar is fixedly installed the fixed hub that axis extends along the vertical direction, the upper end of described connecting bushing is arranged in described fixed hub, and connecting bushing and the middle part of fixed hub are radially coated with realizes the connecting bolt that both are connected its.
The endoporus aperture at connecting bushing two ends is different.
The beneficial effects of the utility model are: during use, bearing is positioned on workpiece assembling seat to be drawn, rotating rod makes the screw connection structure of pull bar be connected with workpiece to be drawn, at pull bar with after drawing workpiece to be connected, if the distance on handle and bearing between Stop structure is less, directly rotary handle makes handle towards moving near bearing direction, until coordinate with Stop structure block, can not continue mobile, then rotary handle, pull bar is treated and is drawn workpiece to apply upward direction pulling capacity under handle active force, thereby workpiece to be drawn is pulled out in workpiece assembling seat to be drawn, if the distance between handle and Stop structure is larger, can Stop structure be moved towards handle orientations by distance regulating mechanism, thereby realizing Stop structure coordinates with the block of handle, by handle and distance regulating mechanism coordinate realize handle and can not continue to move down, then workpiece to be drawn is pulled out.By the setting of distance regulating mechanism, no matter the height of workpiece drawing end height to be drawn, can realize smoothly and treat the proposition of drawing workpiece, has guaranteed the versatility of drawbench; In addition, setting due to distance regulating mechanism, make handle not need to there is very large axial displacement regulated quantity, therefore the pull bar between external screw thread and screw connection structure can be made to plain shaft structure, shortened so externally threaded length, both reduce the difficulty of processing of pull bar, also reduced the possibility that screw thread is worn.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present utility model.
The specific embodiment
A kind of embodiment of drawbench is as shown in Figure 1: comprise bearing and be threaded onto along the vertical direction the pull bar 3 on bearing, be installed with handle on pull bar, be provided with and for coordinating with handle block, limit the Stop structure that handle moves down the limit on bearing.Bearing comprises the supporting leg 9 that force bearing plate 10 and a plurality of length that are fixedly arranged on force bearing plate lower end are extended along the vertical direction, each supporting leg is hollow-core construction, in the endoporus of supporting leg upper end, be fixedly coated with connecting screw rod 4, the upper end of connecting screw rod is passed by force bearing plate, then by attaching nut 13, each supporting leg is fixed on force bearing plate, the lower end level of force bearing plate is welded with two reinforcement transverse tubes side by side, structural strength for increasing force bearing plate, allow like this force bearing plate attenuation diminish, weight reduction, gain in strength, supporting leg can pass through connecting screw rod, after attaching nut is connected with force bearing plate, be welded in again corresponding reinforcement on transverse tube.In the endoporus of each supporting leg lower end, be all fixedly installed adjusting nut 8, on each adjusting nut, be all installed with the adjusting screw(rod) 7 that axis extends along the vertical direction, the bearing link of the upper end of adjusting screw(rod) for being threaded with adjusting nut, the mount pad pushing end of the lower end of adjusting screw(rod) for coordinating with corresponding workpiece assembling seat pushing tow to be drawn.Stop structure comprises the annular boss 14 that is located on pull bar periphery, adjusting screw(rod) can regulate annular boss and handle in the spacing of above-below direction, handle comprises the length cross bar vertical with above-below direction 15, pull bar is arranged in the middle part of cross bar, cross bar is by the nut being connected with pull rod screw, be " one " font and be symmetrically welded the steel pipe formation in nut both sides, one end of cross bar is fixedly installed main rocker 12, handle also comprises the bearing housing 11 that is fixedly installed on cross bar lower end, the lower ending opening of bearing housing, in bearing housing, be provided with thrust bearing 2, thrust bearing has the upper bearing (metal) circle being connected with handle and the lower bearing circle coordinating for the upper surface pushing tow with annular boss.The top of pull bar is provided with secondary rocking bar 1, the upper end of pull bar is provided with the external screw thread of realizing handle spinning, the lower end of handle is provided with the screw connection structure for being threaded with corresponding workpiece to be drawn, and is plain shaft structure on pull bar between external screw thread and screw connection structure.Screw connection structure comprises the connecting bushing 5 that axis extends along the vertical direction, the endoporus aperture at connecting bushing two ends is different, in the two ends endoporus of connecting bushing, be provided with the internal thread for being threaded with workpiece to be drawn, the lower end of pull bar is fixedly installed the fixed hub that axis extends along the vertical direction, the upper end of connecting bushing is arranged in described fixed hub, and connecting bushing and the middle part of fixed hub are radially coated with realizes the connecting bolt 6 that both are connected its.
To the drawing of the power transmission shaft in double-pipe chiller, be now that example is elaborated to use procedure of the present utility model, power transmission shaft is equivalent to workpiece to be drawn, and the sleeve pipe sprocket shaft bearing cover plate that power transmission shaft is installed is equivalent to workpiece assembling seat to be drawn.During use, bearing is positioned on sleeve pipe sprocket shaft bearing cover plate, the screw thread of dismantling on power transmission shaft is for cap, make the external screw thread of power transmission shaft upper end exposed, rotating rod is loaded in the external screw thread of power transmission shaft upper end the lower end screw-casing of connecting bushing, endoporus aperture at connecting bushing two ends is different, can make connecting bushing can be applicable in the power transmission shaft of two kinds of different-diameters.After connecting bushing has been connected with power transmission shaft again, by the adjusting to adjusting screw(rod), annular boss is coordinated with the lower blowout patche pushing tow of thrust bearing, thereby make handle can not continue to move down, then rotary handle, pull bar upwards lifts power transmission shaft under the active force of handle, when power transmission shaft tension, when both hands turn motionless main rocker, can in the pore of main rocker, insert boosting-rod drawing.After power transmission shaft is extracted, rotate backward secondary rocking bar, branch sleeve, by exiting on power transmission shaft, then carries out the drawing of next root power transmission shaft.Certainly this drawbench can also carry out the drawing of other workpiece.
In other embodiment of the present utility model: supporting leg is solid construction also, now can be by the direct spinning of adjusting screw(rod) on supporting leg, certainly distance regulating mechanism can also be to be arranged at adjusting cylinder on bearing or electric pushrod etc., now supporting leg can not established yet, directly will regulate the cylinder body of cylinder or the mount pad of electric pushrod to be installed on force bearing plate, after regulating the piston rod of cylinder or the push rod of electric pushrod to release downwards, withstand on workpiece assembling seat to be drawn, thereby realize annular boss towards moving near handle orientations, can certainly cylinder will be regulated, the linearly operating outbound course of adjusting screw(rod) and the equidistant governor motion of electric pushrod is arranged to upward, such as the pushing end of adjusting screw(rod) stops handle to continue to move down by coordinating with handle pushing tow, regulate cylinder, the push rod of electric pushrod directly coordinates with handle pushing tow and stops handle to continue to move down, the pushing end of adjusting screw(rod) and regulate cylinder now, the push rod of electric pushrod forms Stop structure, handle can also be an annular turntable structure, thrust bearing can not established yet, and now when rotated, handle coordinates with the direct sliding friction of bearing handle, force bearing plate can be also bulk or frame structure, cross bar can be also solid construction, screw connection structure can also be the external screw thread being arranged on the outer peripheral face of pull bar lower end, and now drawbench can arrange female workpiece for drawing, connecting bushing can also only have one end that internal thread is set, and now connecting bushing can be directly fixed on pull bar.
Claims (10)
1. a drawbench, comprise bearing and be threaded onto along the vertical direction the pull bar on bearing, on pull bar, be installed with handle, on bearing, be provided with and for coordinating with handle block, limit the Stop structure that handle moves down the limit, it is characterized in that: the upper end of pull bar is provided with the external screw thread of realizing described handle spinning, the lower end of pull bar is provided with the screw connection structure for being threaded with corresponding workpiece to be drawn, it on described pull bar, between external screw thread and screw connection structure, is plain shaft structure, on described bearing, be provided with for regulating the distance regulating mechanism of described Stop structure and the handle spacing on above-below direction.
2. drawbench according to claim 1, it is characterized in that: described distance regulating mechanism comprises the adjusting screw(rod) that at least two axis extend along the vertical direction, each adjusting screw(rod) all has bearing link and the mount pad pushing end for coordinating with corresponding workpiece assembling seat pushing tow to be drawn being threaded with described bearing.
3. drawbench according to claim 2, it is characterized in that: described bearing comprises force bearing plate and is fixedly arranged on the supporting leg that force bearing plate lower end and length are extended along the vertical direction, the number of supporting leg is identical with the number of adjusting screw(rod), and the bearing link difference spinning of each adjusting screw(rod) is on corresponding supporting leg.
4. drawbench according to claim 3, is characterized in that: in each supporting leg, be all fixedly installed and be useful on the adjusting nut of realizing corresponding adjusting screw(rod) spinning.
5. drawbench according to claim 1, it is characterized in that: described Stop structure comprises the annular boss that is located on described pull bar periphery, the lower end of described handle is provided with the thrust bearing that axis extends along the vertical direction, and described thrust bearing has the upper bearing (metal) circle being connected with described handle and the lower bearing circle coordinating for the upper surface pushing tow with described annular boss.
6. drawbench according to claim 1, is characterized in that: described handle comprises the cross bar that length is vertical with above-below direction, and pull bar is arranged in the middle part of described cross bar, and at least one end of cross bar is provided with main rocker.
7. drawbench according to claim 1, is characterized in that: the top of described pull bar is provided with secondary rocking bar.
8. according to the drawbench described in claim 1 ~ 7 any one, it is characterized in that: described screw connection structure comprises the connecting bushing that axis extends along the vertical direction, at least one end endoporus of connecting bushing, be provided with the internal thread for being threaded with workpiece to be drawn.
9. drawbench according to claim 8, it is characterized in that: the two ends of connecting bushing are provided with described internal thread, the lower end of pull bar is fixedly installed the fixed hub that axis extends along the vertical direction, the upper end of described connecting bushing is arranged in described fixed hub, and connecting bushing and the middle part of fixed hub are radially coated with realizes the connecting bolt that both are connected its.
10. drawbench according to claim 9, is characterized in that: the endoporus aperture at connecting bushing two ends is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638205.3U CN203495859U (en) | 2013-10-16 | 2013-10-16 | Puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320638205.3U CN203495859U (en) | 2013-10-16 | 2013-10-16 | Puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203495859U true CN203495859U (en) | 2014-03-26 |
Family
ID=50326863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320638205.3U Expired - Lifetime CN203495859U (en) | 2013-10-16 | 2013-10-16 | Puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203495859U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555825A (en) * | 2018-06-20 | 2018-09-21 | 国家电网有限公司 | Pin extracting apparatus |
| CN112643326A (en) * | 2021-01-26 | 2021-04-13 | 江苏格纳特连接系统有限公司 | High efficiency pushes away nut structure |
| CN114274092A (en) * | 2021-11-29 | 2022-04-05 | 中车永济电机有限公司 | Rotary drawing tool |
| CN114659881A (en) * | 2022-04-23 | 2022-06-24 | 常州正信建设工程检测有限公司 | Drawing equipment for building energy-saving detection |
-
2013
- 2013-10-16 CN CN201320638205.3U patent/CN203495859U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555825A (en) * | 2018-06-20 | 2018-09-21 | 国家电网有限公司 | Pin extracting apparatus |
| CN112643326A (en) * | 2021-01-26 | 2021-04-13 | 江苏格纳特连接系统有限公司 | High efficiency pushes away nut structure |
| CN114274092A (en) * | 2021-11-29 | 2022-04-05 | 中车永济电机有限公司 | Rotary drawing tool |
| CN114659881A (en) * | 2022-04-23 | 2022-06-24 | 常州正信建设工程检测有限公司 | Drawing equipment for building energy-saving detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
|
| CX01 | Expiry of patent term |