CN103433890A - Pin pulling device for excavator - Google Patents
Pin pulling device for excavator Download PDFInfo
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- CN103433890A CN103433890A CN2013103929585A CN201310392958A CN103433890A CN 103433890 A CN103433890 A CN 103433890A CN 2013103929585 A CN2013103929585 A CN 2013103929585A CN 201310392958 A CN201310392958 A CN 201310392958A CN 103433890 A CN103433890 A CN 103433890A
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- excavator
- screw rod
- bolt
- connector
- supporter
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Abstract
The invention discloses a pin pulling device for an excavator and belongs to the field of machinery manufacturing. The pin pulling device for the excavator comprises a supporting body (3), a connection body (5), a bolt (8), a screw rod (1) and a single-direction thrust ball bearing (6), wherein the connection body (5) linearly moves along the supporting body (3); a supporting surface which is matched with a vehicle body (20) is arranged at one end of the supporting body (3); the movement direction of the connection body (5) is perpendicular to the supporting surface; a threaded hole is formed in the other end of the supporting body (3); a thread which is matched with the threaded hole is arranged at one end of the screw rod (1); one end of the screw rod (1) is sleeved in the threaded hole, and the other end of the screw rod (1) is connected with one end of the single-direction thrust ball bearing (6); the other end of the single direction thrust ball bearing (6) is connected with one end of the connection body (5); the other end of the connection body (5) is detachably connected with one end of the bolt (8); the other end of the bolt (8) is a connection end which is matched with a connection hole. According to the technical scheme, a screw transmission structure in which the screw rod is matched with the single-direction thrust ball bearing is adopted. The pin pulling device for the excavator is easy to operate, compact in structure, and high in reliability, and has the time-saving and labor-saving effects.
Description
Technical field
The invention belongs to plant equipment and manufacture field, relate to a kind of pin pulling out device, relate in particular to a kind of excavator pin pulling out device that the excavator field is used that is applicable to.
Background technology
Because the left side of excavator is driver's cabin, be subject to the impact in its space, when changing swing arm, dismounting swing arm root bearing pin is more difficult, and after bearing pin gets rusty or is out of shape, it is more difficult that dismounting can become especially.When factory's dismounting excavator swing arm root bearing pin, the general iron staff adopted with flat tip, knock the bearing pin pressing plate.When dismantling at need, pull down driver's cabin, directly knock bearing pin, lose time in the extreme; And excavator operation in the wild, while need changing swing arm, often bearing pin at this moment can be owing to getting rusty or be out of shape, and difficult dismounting the in the extreme that become is subject to again environmental limitations, is inconvenient to lift.General bolt and the rope of adopting ties up, and with another excavator, pulls out.When can not pullling out or side while there is no excavator, just adopt the mode of flame cutting, the swing arm root is cut off.
Therefore, adopt the iron staff with flat tip, knock the bearing pin pressing plate or pull down driver's cabin, directly knock bearing pin, waste time and energy very much; And adopt bolt and rope to tie up, and by the mode that another excavator is pullled out or flame cuts, the swing arm root is cut off, very inconvenient, dangerous and waste time and energy.
Summary of the invention
In view of this, the screw drive structure that the present invention adopts screw rod and single direction thrust ball bearing to be used in combination by employing, simple to operate, compact conformation, reliability are high, time saving and energy saving.
For achieving the above object, concrete technical scheme is as follows:
A kind of excavator pin pulling out device, be applicable to excavator, described excavator comprises the bearing pin of being located in car body, one end of described bearing pin is provided with connecting hole, described excavator pin pulling out device comprises supporter, connector along described supporter traveling priority, bolt, screw rod and single direction thrust ball bearing, one end of described supporter is provided with the supporting surface coordinated with described car body, the moving direction of described connector is vertical with described supporting surface, the other end of described supporter is provided with screwed hole, one end of described screw rod is provided with the screw thread coordinated with described screwed hole, one end of described screw rod is sheathed in described screwed hole, the other end of described screw rod is connected with an end of described single direction thrust ball bearing, the other end of described single direction thrust ball bearing is connected with an end of described connector, one end releasable connection of the other end of described connector and described bolt, the other end of described bolt is provided with the link coordinated with described connecting hole.
Preferably, the connecting hole of the link of described bolt and described bearing pin is by the screw thread releasable connection.
Preferably, an end of described bolt also is provided with the attaching nut, and the other end of described attaching nut and described connector is by the screw thread releasable connection.
Preferably, described attaching nut and described bolt are threaded connection.
Preferably, also be provided with guide plate between described connector and supporter, also be provided with the draw-in groove that the described guide plate of restriction rotates on described supporter.
Preferably, an end of described connector also is provided with the first baffle plate, and described the first baffle plate is provided with through hole, and described screw sleeve is located in described through hole.
Preferably, described screw rod is provided with nut and second baffle, and described connector and single direction thrust ball bearing are sheathed between the nut and second baffle of described screw rod successively.
Preferably, the other end of described supporter is provided with the silk seat, and described silk seat is provided with screwed hole.
Preferably, between described silk seat and supporter, be connected by screw.
With respect to prior art, the advantage of technical scheme of the present invention has:
1, the screw drive structure that adopts screw rod and single direction thrust ball bearing to be used in combination, simple to operate, deft design, compact conformation, reliability are high, time saving and energy saving;
2, attaching nut and bolt are replaceable, to adapt to the complete series excavator;
3, easy to carry, safety.
The accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
Fig. 1 is the use view of the embodiment of the present invention;
Fig. 2 is the structural representation of the embodiment of the present invention;
Fig. 3 is the screw-rod structure schematic diagram of the embodiment of the present invention;
Fig. 4 is the supporting body structure schematic diagram of the embodiment of the present invention;
Fig. 5 is the bolt structure schematic diagram of the embodiment of the present invention;
Fig. 6 is the connector structural representation of the embodiment of the present invention.
Wherein, 1 for screw rod, 2 for silk seat, 3 for supporter, 4 for nut, 5 for connector, 6 for single direction thrust ball bearing, 7 for the attaching nut, 8 for bolt, 9 for screw, 10 for screw shaft, 11 for second baffle, 12 for gripper shoe, 13 for stay pipe, 14 be the first baffle plate, 15 for tube connector, 16 for guide plate, 20 for car body, 21 be bearing pin.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
It should be noted that, in the situation that do not conflict, embodiment and the feature in embodiment in the present invention can combine mutually.
Below with reference to accompanying drawing, embodiments of the invention are done to concrete explaination.
A kind of excavator pin pulling out device of embodiments of the invention as shown in figs. 1 and 2, be applicable to excavator, and excavator comprises the bearing pin 21 of being located in car body 20.One end of bearing pin 21 is provided with connecting hole.The excavator pin pulling out device comprises supporter 3, the connector 5 along supporter 3 traveling priorities, bolt 8, screw rod 1 and single direction thrust ball bearing 6.One end of supporter 3 is provided with the supporting surface coordinated with car body 20, and the moving direction of connector 5 is vertical with supporting surface.The other end of supporter 3 is provided with screwed hole, one end of screw rod 1 is provided with the screw thread coordinated with screwed hole, one end of screw rod 1 is sheathed in screwed hole, the other end of screw rod 1 is connected with an end of single direction thrust ball bearing 6, the other end of single direction thrust ball bearing 6 is connected with an end of connector 5, one end releasable connection of the other end of connector 5 and bolt 8, the other end of bolt 8 is provided with the link coordinated with connecting hole.
The screw drive structure that embodiments of the invention adopt screw rod and single direction thrust ball bearing to be used in combination by employing, simple to operate, compact conformation, reliability are high, time saving and energy saving.
As shown in Figure 2, in an embodiment of the present invention, comprise screw rod 1, silk seat 2, supporter 3, nut 4, connector 5, single direction thrust ball bearing 6, attaching nut 7, bolt 8 and screw 9.Screw rod 1, silk seat 2, supporter 3, nut 4, connector 5, single direction thrust ball bearing 6 and screw 9 form the screw drive structure.Form worm drive by screw thread between screw rod 1 and silk seat 2, be threaded between attaching nut 7 and connector 5.
And in conjunction with shown in Fig. 3, screw rod 1 is to be welded by screw shaft 10 and second baffle 11, and form worm drive by screw thread between silk seat 2, form bolt rotary with single direction thrust ball bearing 6 after reducing resistance, and transfer move mode to by rotating manner, thereby drive connector 5, attaching nut 7, bolt 8, move together; Screw shaft 10 is main bodys of screw rod 1, and second baffle 11 is mainly to stop the ball in single direction thrust ball bearing 6 to drop out, and drive single direction thrust ball bearing 6 rotates together.Screw rod 1 is welded and can also reduces cost of manufacture by screw shaft 10 and second baffle 11.
2 main super helix transmission and the carrying effects of silk seat, and form worm drive by screw thread between screw rod 1.
And, in conjunction with shown in Fig. 4 and Fig. 5, supporter 3 is to be welded to form by gripper shoe 12 and stay pipe 13; Link together by screw 9 and silk seat 2, play the whole device of carrying.
And, in conjunction with shown in Fig. 6, connector 5 is to be welded by the first baffle plate 14, tube connector 15 and guide plate 16,16 carryings of guide plate, leads and prevent its rotary action; When screw rod 1 rotates, be transformed into movement by single direction thrust ball bearing 6, and drive attaching nut 7, bolt 8 moves together.
Single direction thrust ball bearing 6, by reducing resistance, forms the screw drive structure with screw rod 1, silk seat 2, supporter 3, nut 4, connector 5 and screw 9, works to reduce resistance and changes the kind of drive.
Be threaded connection between attaching nut 7 and connector 5, drive bolt 8 and move together.
Embodiments of the invention design a kind of screw mechanism, adopt screw rod 1 and single direction thrust ball bearing 6 to be used in combination, and a kind of device that attaching nut 7 and bolt 8 are removable, wherein screw rod 1, silk seat 2, supporter 3, nut 4, connector 5, single direction thrust ball bearing 6 and screw 8 form the screw drive structure; Screw rod 1 and silk seat 2, adopt and be threaded between attaching nut 7 and connector 5.First bolt 8 and swing arm bearing pin 21 screwed holes are together by a threaded connection, again attaching nut 7 and connector 5 are together by a threaded connection, then use spanner rotary screw 1, by screw rod 1 and 2 worm drive of silk seat, form bolt rotary through single direction thrust ball bearing 6 after reducing resistance again, drive connector 5, attaching nut 7 move together with bolt 8, thereby drive swing arm bearing pin 21, outwards extract together.That embodiments of the invention have is simple to operate, deft design, compact conformation and reliability high.
During concrete application, attaching nut 7 and bolt 8 can be changed according to the screwed hole of swing arm bearing pin, to adapt to the complete series excavator.
In addition, in an embodiment of the present invention, screw rod preferably adopts rolling spiral drive or worm drive, and the rotation of screw rod also can be used hydraulic pressure and pneumatic realization, but the structure relative complex, weight will increase to some extent.
Above specific embodiments of the invention be have been described in detail, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and alternative also all among category of the present invention.Therefore, equalization conversion and the modification done without departing from the spirit and scope of the invention, all should contain within the scope of the invention.
Claims (9)
1. an excavator pin pulling out device, be applicable to excavator, described excavator comprises the bearing pin (21) of being located in car body (20), one end of described bearing pin (21) is provided with connecting hole, it is characterized in that, described excavator pin pulling out device comprises supporter (3), connector (5) along described supporter (3) traveling priority, bolt (8), screw rod (1) and single direction thrust ball bearing (6), one end of described supporter (3) is provided with the supporting surface coordinated with described car body (20), the moving direction of described connector (5) is vertical with described supporting surface, the other end of described supporter (3) is provided with screwed hole, one end of described screw rod (1) is provided with the screw thread coordinated with described screwed hole, one end of described screw rod (1) is sheathed in described screwed hole, the other end of described screw rod (1) is connected with an end of described single direction thrust ball bearing (6), the other end of described single direction thrust ball bearing (6) is connected with an end of described connector (5), one end releasable connection of the other end of described connector (5) and described bolt (8), the other end of described bolt (8) is provided with the link coordinated with described connecting hole.
2. excavator pin pulling out device as claimed in claim 1, is characterized in that, the connecting hole of the link of described bolt (8) and described bearing pin (21) is by the screw thread releasable connection.
3. excavator pin pulling out device as claimed in claim 2, is characterized in that, an end of described bolt (8) also is provided with attaching nut (7), and described attaching nut (7) passes through the screw thread releasable connection with the other end of described connector (5).
4. excavator pin pulling out device as claimed in claim 3, is characterized in that, described attaching nut (7) is threaded connection with described bolt (8).
5. excavator pin pulling out device as claimed in claim 4, is characterized in that, between described connector (5) and supporter (3), also is provided with guide plate (16), also is provided with the draw-in groove that the described guide plate of restriction (16) rotates on described supporter (3).
6. excavator pin pulling out device as claimed in claim 5, is characterized in that, an end of described connector (5) also is provided with the first baffle plate (14), and described the first baffle plate (14) is provided with through hole, and described screw rod (1) is sheathed in described through hole.
7. excavator pin pulling out device as claimed in claim 6, it is characterized in that, described screw rod (1) is provided with nut (4) and second baffle (11), and described connector (5) and single direction thrust ball bearing (6) are sheathed between the nut (4) and second baffle (11) of described screw rod (1) successively.
8. excavator pin pulling out device as claimed in claim 7, is characterized in that, the other end of described supporter (3) is provided with silk seat (2), and described silk seat (2) is provided with screwed hole.
9. excavator pin pulling out device as claimed in claim 8, is characterized in that, between described silk seat (2) and supporter (3), by screw (9), connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310392958.5A CN103433890B (en) | 2013-08-30 | 2013-08-30 | A kind of excavator pin pulling out device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310392958.5A CN103433890B (en) | 2013-08-30 | 2013-08-30 | A kind of excavator pin pulling out device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103433890A true CN103433890A (en) | 2013-12-11 |
| CN103433890B CN103433890B (en) | 2016-08-10 |
Family
ID=49687652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310392958.5A Expired - Fee Related CN103433890B (en) | 2013-08-30 | 2013-08-30 | A kind of excavator pin pulling out device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103433890B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673673A (en) * | 2020-06-29 | 2020-09-18 | 广西玉柴机器股份有限公司 | Electrical control type pin pulling device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2930971A1 (en) * | 1979-07-31 | 1981-02-19 | Kolb Heinrich | Hinge pin removal device - includes pull rod with nut at top and bottom hooked to side of hydraulically driven carrier element |
| JPH0985638A (en) * | 1995-09-28 | 1997-03-31 | Yasunobu Nagahisa | Pin extracting tool |
| CN202438970U (en) * | 2012-02-08 | 2012-09-19 | 张德根 | Multi-functional motorcycle piston pin pulling device |
| CN202763768U (en) * | 2012-07-31 | 2013-03-06 | 徐州徐工挖掘机械有限公司 | Installation device of excavator work lining |
| CN203077201U (en) * | 2013-01-16 | 2013-07-24 | 江苏新誉重工科技有限公司 | Wind driven generator impeller stop pin shaft pulling device |
-
2013
- 2013-08-30 CN CN201310392958.5A patent/CN103433890B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2930971A1 (en) * | 1979-07-31 | 1981-02-19 | Kolb Heinrich | Hinge pin removal device - includes pull rod with nut at top and bottom hooked to side of hydraulically driven carrier element |
| JPH0985638A (en) * | 1995-09-28 | 1997-03-31 | Yasunobu Nagahisa | Pin extracting tool |
| CN202438970U (en) * | 2012-02-08 | 2012-09-19 | 张德根 | Multi-functional motorcycle piston pin pulling device |
| CN202763768U (en) * | 2012-07-31 | 2013-03-06 | 徐州徐工挖掘机械有限公司 | Installation device of excavator work lining |
| CN203077201U (en) * | 2013-01-16 | 2013-07-24 | 江苏新誉重工科技有限公司 | Wind driven generator impeller stop pin shaft pulling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673673A (en) * | 2020-06-29 | 2020-09-18 | 广西玉柴机器股份有限公司 | Electrical control type pin pulling device |
| CN111673673B (en) * | 2020-06-29 | 2024-03-29 | 广西玉柴机器股份有限公司 | Electrical control type pin pulling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103433890B (en) | 2016-08-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20170830 |