CN210081614U - Hollow shaft part dismounting puller - Google Patents
Hollow shaft part dismounting puller Download PDFInfo
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- CN210081614U CN210081614U CN201920718538.4U CN201920718538U CN210081614U CN 210081614 U CN210081614 U CN 210081614U CN 201920718538 U CN201920718538 U CN 201920718538U CN 210081614 U CN210081614 U CN 210081614U
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- pushing head
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- nut
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Abstract
The utility model relates to a hollow shaft part dismounting puller, which comprises a driving device and a traction component, the traction assembly comprises a pull rod, a support frame and an unloading force application frame, one end of the pull rod is connected with the unloading force application frame, the other end of the pull rod penetrates through a central through hole of the support frame and is provided with a tension transmission part, the driving device comprises a pushing assembly and a driving threaded sleeve in threaded fit, the driving threaded sleeve is provided with a central through hole for the pull rod to penetrate through, the driving threaded sleeve comprises a connecting base fixedly connected with the support frame and a solenoid body with external threads, the pushing assembly comprises a nut in threaded fit on the solenoid body, the nut is provided with a driving operation part for driving the rotating operation part and a pushing head in pushing fit with the tension transmission part, the pushing head is provided with a yielding hole for the pull rod to penetrate through, and a rotating mechanism allowing the pushing head to rotate relative to the tension transmission part is arranged between the pushing head and. Has the advantages of simple structure, small volume, convenient carrying and the like.
Description
Technical Field
The utility model relates to the field of machinary, the extracting tool who says so certainly is to the puller that hollow shaft class part dismantles the use more exactly.
Background
The puller is a tool frequently used in mechanical maintenance. In some mechanical equipment, a hollow shaft is often used for transmitting power, for example, a main shaft of a trolley for processing inner and outer rings of a radial ball bearing is a hollow shaft, and when the shaft and the bearing are mounted and dismounted, the shaft and the bearing are easily damaged by a multi-purpose knocking method. In order to solve the above technical problems, a special dismounting tool is designed, for example, a hollow shaft hydraulic puller disclosed in chinese patent No. CN 200620140477.0, which adopts a hydraulic cylinder as a drive, has the defects of complex structure and large volume, and the hydraulic cylinder needs a hydraulic source, so that the use of the device is limited.
Disclosure of Invention
The utility model discloses the invention purpose: for overcoming the defect that prior art exists, the utility model provides an adopt hollow shaft class part dismantlement puller of screw drive mode has simple structure, and is small, advantages such as portable.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a hollow shaft class part is dismantled and is drawn horse, includes drive arrangement and traction assembly, traction assembly includes pull rod, support frame and unloads dress application of force frame, and pull rod one end is connected with the dress application of force frame of unloading, and the pull rod other end passes the central through-hole of support frame and installs pulling force transmission portion, its characterized in that: the driving device comprises a pushing assembly and a driving threaded sleeve which are matched with each other in a threaded manner, the driving threaded sleeve is provided with a central through hole through which the pull rod penetrates, the driving threaded sleeve comprises a connecting base fixedly connected with the support frame and a solenoid body with an external thread, the pushing assembly comprises a nut which is matched with the solenoid body in a threaded manner, the nut is provided with a driving operating part and a pushing head matched with the pulling force transmission part in a pushing manner, the pushing head is provided with a yielding hole through which the pull rod penetrates, and a rotating mechanism which allows the pushing head to rotate relative to the pulling force transmission part is arranged between the pushing head and the pulling force transmission part.
By adopting the technical scheme, during use, the pull rod is arranged on the hollow shaft part (such as a bearing) and the driving threaded sleeve in a penetrating mode, the dismounting force application frame at one end of the pull rod props against the hollow shaft part, the pulling force transmission part of the pull rod is abutted to the nut, the support frame connected with the driving threaded sleeve is supported on the seat shell for mounting the hollow shaft part, the nut is rotated, the nut rises to push the pulling force transmission part, and therefore the pushing pull rod moves, and the dismounting force application frame on the pull rod moves the hollow shaft part out of the mounting position. The mechanical device adopting the nut and screw rod is used as a driving device, has simple structure and small volume, does not need an external power source, can finish the disassembly work by manually rotating the nut, is convenient to carry and is not limited by places.
Preferably, the pushing head is axially and floatingly supported on the nut through a compression spring, the pushing head is in circumferential synchronous linkage with the nut, and the pushing head is provided with a yielding hole cavity for the solenoid body to stretch into. Under the structural design, the pushing head and the supporting frame are supported by the compression spring, the pushing head is supported on the tension transmission part, and the supporting frame is supported on a seat shell for mounting the hollow shaft part to provide pre-supporting force; meanwhile, when the pushing is carried out, the compression spring provides gentle pushing force, so that the disassembly is softer.
Preferably, the nut comprises a nut body with an internal thread, the nut body extends axially to form an extension cylinder, the extension cylinder is provided with a guide cylinder cavity coaxially communicated with the internal thread hole of the nut body, the peripheral side wall of the guide cylinder cavity is provided with a rotation stopping guide convex rib, the pushing head comprises a guide chassis matched with the guide cylinder cavity in a sliding guide way and a pushing head body arranged on the guide chassis, the guide chassis is provided with a guide notch matched with the rotation stopping guide convex rib in a positioning guide way, the diameter of the guide chassis is larger than that of the pushing head body, the opening part cover of the extension cylinder is provided with a cover matched with the guide chassis in a limiting way to limit the lead chassis in the guide cylinder cavity, the cover is provided with a cover hole for extending out of the pushing head body, the internal diameter of the guide cylinder cavity is larger than that of the nut body and a supporting table top is formed at the bottom of the guide cylinder cavity, one end of the compression spring is supported on the supporting table surface, and the other end of the compression spring is supported on the pushing head. Under this structural design, the cooperation of top pusher and nut is reliable and compact.
Preferably, the rotating mechanism comprises a plane thrust bearing and a pushing cover plate, an inner ring of the plane thrust bearing is fixedly mounted on the pushing head body, and an outer ring of the plane thrust bearing is fixedly connected with the pushing cover plate. Under this structural design, utilize plane thrust bearing and pulling force transmission portion cooperation, guarantee that the nut can reliable rotation and push away to pulling force transmission portion.
Preferably, the flat thrust bearing is a tapered roller bearing. Under this structural design, have better jacking force, work is more stable.
Preferably, the connecting base is detachably connected to the supporting frame. Under this structural design, be convenient for change maintenance drive threaded sleeve.
Preferably, the support frame includes the horizontal pole, and the drive thread sleeve pipe is fixed in on the horizontal pole, be equipped with a plurality of support heads on the horizontal pole, support the head and transversely be equipped with the mounting hole that supplies the horizontal pole to wear to establish, support the head axial and be equipped with the locking hole, locking hole and mounting hole UNICOM, locking hole internal thread spiral is equipped with locking screw, locking screw and horizontal pole locking cooperation, support the head bottom and be equipped with the rubber pad. Under this structural design, simple structure, the design of rubber pad can be so that support head and corresponding part contact are reliable, plays the guard action simultaneously.
The present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a drawing diagram showing a state of a hollow shaft part disassembling puller according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a driving device according to an embodiment of the present invention;
fig. 3 is an exploded view of the driving device according to the embodiment of the present invention.
Detailed Description
Referring to the attached drawings 1-3, the utility model discloses a hollow shaft part dismounting puller, which comprises a driving device and a traction assembly, wherein the traction assembly comprises a pull rod 1, a support frame 2 and an dismounting force applying frame 3, one end of the pull rod 1 is connected with the dismounting force applying frame 3, the other end of the pull rod 1 passes through a central through hole of the support frame 2 and is provided with a pulling force transmitting part 11, the driving device comprises a pushing assembly and a driving threaded sleeve 4 which are in threaded fit, the driving threaded sleeve 4 is provided with a central through hole for the pull rod to pass through, the driving threaded sleeve 4 comprises a connecting base 41 fixedly connected with the support frame 2 and a screwed pipe body 42 with external threads, the pushing assembly comprises a nut 5 which is in threaded fit on the screwed pipe body 42, the nut 5 is provided with an operating part 5-1 for driving the nut to rotate and a pushing head 5-2 which is in pushing fit with the pulling, the pushing head 5-2 is provided with a yielding hole for the pull rod 1 to pass through, and a rotating mechanism allowing the pushing head 5-2 and the pulling force transmitting part 11 to rotate relatively is arranged between the pushing head 5-2 and the pulling force transmitting part 11. When the hollow shaft component mounting device is used, the pull rod 1 penetrates through the hollow shaft component 8 (such as a bearing) and the driving threaded sleeve 4, the dismounting force application frame 3 at one end of the pull rod 1 abuts against the hollow shaft component 8, the pulling force transmission part 11 of the pull rod 1 abuts against the nut 5, the support frame 2 connected with the driving threaded sleeve 4 is supported on a seat shell 9 mounted on the hollow shaft component 8, the nut 5 is rotated, the nut 5 rises to push the pulling force transmission part 11, so that the pushing pull rod 1 moves, and the dismounting force application frame 3 on the pull rod 1 moves the hollow shaft component 8 out of the mounting position. The mechanical device adopting the nut 5 screw rod is used as a driving device, has simple structure and small volume, does not need an external power source, can finish the disassembly work by manually rotating the nut 5, is convenient to carry and is not limited by places. The driving threaded sleeve 4 is damaged after being used for a long time, and the connecting base 41 is detachably connected to the support frame 2 for reducing maintenance cost. This facilitates replacement and repair of the drive threaded sleeve 4.
The support frame 2 comprises a cross rod 21, the driving threaded sleeve 4 is fixed on the cross rod 21, a plurality of support heads 22 are arranged on the cross rod 21, the support heads 22 are transversely provided with mounting holes for the cross rod 21 to penetrate through, locking holes are axially formed in the support heads 22 and communicated with the mounting holes, locking screws are screwed in the locking holes and are in locking fit with the cross rod 21, and a rubber pad 221 is arranged at the bottom of each support head 22. Under this structural design, simple structure, the design of rubber pad 221 can make support head 22 and corresponding part contact reliable, plays the guard action simultaneously.
For making drive arrangement's job stabilization reliable, the utility model discloses a drive arrangement adopts following design: the pushing head 5-2 is axially supported on the nut 5 in a floating manner through a compression spring 5-3, the pushing head 5-2 is in synchronous linkage with the nut 5 in the circumferential direction, and the pushing head 5-2 is provided with a yielding hole cavity for the solenoid body 42 to extend into. Under the structural design, the pushing head 5-2 and the supporting frame 2 are propped open through the compression spring 5-3, the pushing head 5-2 is supported on the tension transmission part 11, and the supporting frame 2 is supported on a seat shell 9 arranged on the hollow shaft part 8 to provide a pre-supporting force; meanwhile, when pushing, the compression spring 5-3 provides gentle pushing force, so that the disassembly is softer.
The nut 5 comprises a nut body 51 with internal threads, an extension cylinder 52 extends axially from the nut body 51, the extension cylinder 52 is provided with a guide cylinder cavity 520 coaxially communicated with an internal thread hole of the nut body 51, the peripheral side wall of the guide cylinder cavity 520 is provided with a rotation-stopping guide convex rib 521, the ejector head 5-2 comprises a guide chassis 5-21 matched with the guide cylinder cavity 520 in a sliding guide way and an ejector head body 5-22 arranged on the guide chassis 5-21, the guide chassis 5-21 is provided with a guide notch 5-221 matched with the rotation-stopping guide convex rib 521 in a positioning and guiding way, the diameter of the guide chassis 5-21 is larger than that of the ejector head body 5-22, the opening cover of the extension cylinder 52 is provided with a cover 53 matched with the guide chassis 5-21 in a limiting way to limit the wire chassis in the guide cylinder cavity 520, the cover 53 is provided with a cover hole for the ejector head body 5-22 to extend out, the cover is fixedly locked on the extension cylinder 52 by radial screws, the inner diameter of the guide cylinder cavity 520 is larger than the inner threaded hole of the nut body 51, a supporting table surface 523 is formed at the bottom of the guide cylinder cavity 520, the compression spring 5-3 is installed in the guide cylinder cavity 520, one end of the compression spring 5-3 is supported on the supporting table surface 523, and the other end of the compression spring 5-3 is supported on the pushing head 5-2. With the structural design, the ejector 5-2 is reliably and compactly matched with the nut 5.
Further, the rotating mechanism comprises a plane thrust bearing 6 and a pushing cover plate 7, an inner ring of the plane thrust bearing 6 is fixedly arranged on the pushing head body 5-22, and an outer ring of the plane thrust bearing 6 is fixedly connected with the pushing cover plate 7. The plane thrust bearing 6 is matched with the tension transmitting part 11, so that the nut 5 can reliably rotate and push the tension transmitting part 11. The surface of the pushing cover plate 7 can be designed with a rubber cover or pad to improve the contact force between the pushing cover plate 7 and the tension transmission part 11. The tension transmission part 11 may be a screw plate design of the prior art.
The plane thrust bearing 6 is a tapered roller bearing. The axial load can be better borne, and the work is stable.
Claims (7)
1. The utility model provides a hollow shaft class part is dismantled and is drawn horse, includes drive arrangement and traction assembly, traction assembly includes pull rod, support frame and unloads dress application of force frame, and pull rod one end is connected with the dress application of force frame of unloading, and the pull rod other end passes the central through-hole of support frame and installs pulling force transmission portion, its characterized in that: the driving device comprises a pushing assembly and a driving threaded sleeve which are matched with each other in a threaded manner, the driving threaded sleeve is provided with a central through hole through which the pull rod penetrates, the driving threaded sleeve comprises a connecting base fixedly connected with the support frame and a solenoid body with an external thread, the pushing assembly comprises a nut which is matched with the solenoid body in a threaded manner, the nut is provided with a driving operating part and a pushing head matched with the pulling force transmission part in a pushing manner, the pushing head is provided with a yielding hole through which the pull rod penetrates, and a rotating mechanism which allows the pushing head to rotate relative to the pulling force transmission part is arranged between the pushing head and the pulling force transmission part.
2. The extractor for disassembling hollow shaft parts according to claim 1, characterized in that: the pushing head is axially and floatingly supported on the nut through a compression spring, the pushing head is synchronously linked with the nut in the circumferential direction, and the pushing head is provided with a yielding hole cavity for the solenoid body to stretch into.
3. The extractor for disassembling hollow shaft parts according to claim 2, characterized in that: the nut comprises a nut body with an internal thread, an extension barrel extends axially from the nut body, the extension barrel is provided with a guide barrel cavity coaxially communicated with the internal thread hole of the nut body, the peripheral side wall of the guide barrel cavity is provided with a rotation stop guide convex rib, the pushing head comprises a guide chassis matched with the guide barrel cavity in a sliding guide way and a pushing head body arranged on the guide chassis, the guide chassis is provided with a guide notch matched with the rotation stop guide convex rib in a positioning guide way, the diameter of the guide chassis is larger than that of the pushing head body, the opening part of the extension barrel is covered with a cover matched with the guide chassis in a limiting way to limit the lead chassis in the guide barrel cavity, the cover is provided with a cover hole for extending out of the pushing head body, the internal diameter of the guide barrel cavity is larger than the internal thread hole of the nut body and a supporting table surface is formed at the bottom of the guide barrel cavity, the compression spring is arranged in the, the other end of the compression spring is supported on the pushing head.
4. The extractor for disassembling hollow shaft parts according to claim 3, characterized in that: the rotating mechanism comprises a plane thrust bearing and a pushing cover plate, an inner ring of the plane thrust bearing is fixedly arranged on the pushing head body, and an outer ring of the plane thrust bearing is fixedly connected with the pushing cover plate.
5. The extractor for disassembling hollow shaft parts according to claim 4, wherein: the plane thrust bearing is a tapered roller bearing.
6. The extractor for disassembling hollow shaft parts according to claim 1, characterized in that: the connecting base is detachably connected to the supporting frame.
7. The extractor for disassembling hollow shaft parts according to claim 1, characterized in that: the support frame includes the horizontal pole, and the drive screw thread sleeve pipe is fixed in on the horizontal pole, be equipped with a plurality of supports heads on the horizontal pole, support the head and transversely be equipped with the mounting hole that supplies the horizontal pole to wear to establish, support the head axial and be equipped with the locking hole, locking hole and mounting hole UNICOM, locking hole internal thread is equipped with locking screw soon, locking screw and horizontal pole locking cooperation, it is equipped with the rubber pad to support first bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920718538.4U CN210081614U (en) | 2019-05-17 | 2019-05-17 | Hollow shaft part dismounting puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920718538.4U CN210081614U (en) | 2019-05-17 | 2019-05-17 | Hollow shaft part dismounting puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210081614U true CN210081614U (en) | 2020-02-18 |
Family
ID=69478997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920718538.4U Active CN210081614U (en) | 2019-05-17 | 2019-05-17 | Hollow shaft part dismounting puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210081614U (en) |
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2019
- 2019-05-17 CN CN201920718538.4U patent/CN210081614U/en active Active
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