CN104358287A - Locking pin - Google Patents
Locking pin Download PDFInfo
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- CN104358287A CN104358287A CN201410548039.7A CN201410548039A CN104358287A CN 104358287 A CN104358287 A CN 104358287A CN 201410548039 A CN201410548039 A CN 201410548039A CN 104358287 A CN104358287 A CN 104358287A
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- groove
- tenon
- locking pin
- limiting section
- shank
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Abstract
The invention discloses a locking pin, and relates to the technical field of mechanical connecting components. The locking pin comprises a pin body, wherein the pin body is a straight rod, a groove is formed in the side of the pin body, a cover plate used for sealing the notch of the groove is mounted on the pin body, a movable tenon and an elastomer are clamped and arranged in a cavity which is formed by surrounding the cover plate and the groove, the movable tenon is provided with a tenon head which extends out of the pin body from the groove wall of the groove and limiting parts which are placed in the groove, one ends which are connected with the tenon head of the limiting parts are butted against to the groove wall of the groove, the free ends of the limiting parts are in butted connection to the elastomer, and the limiting parts and the elastomer are sealed in the cavity. Compared with the prior art, the locking pin disclosed by the invention has the advantages that the locking pin is more suitable for the severe environment, the service life is long, the structure is simple, the processing and the assembling are easy, the component replacement is convenient, and the usage cost is low.
Description
Technical field
The present invention relates to mechanical fastener technical field, to be especially a kind ofly locked most advanced and sophisticated for bucket tooth etc. in the pin of the excavating equipment junction in the field such as construction machinery industry, mining machinery.
Background technology
The excavator in engineering machinery, mining machinery field, loader, the operation of Mars Miner by carrying out excavating or reprinting with scraper bowl, scraper bowl plays a part to cut material and loaded material.For reducing Cat-in resisting force, increasing scraper bowl cutting power, needing to install bucket tooth assembly additional at scraper bowl leading portion, its object: one be protection scraper bowl working end not by too early, cross quick-wearing; Two is increase incision ability; Three is by changing the bucket tooth assembly worn and torn, and makes scraper bowl working end keep sharp, reduces simultaneously and safeguard use cost.
Bucket tooth assembly is usually designed to a few part, and as bucket tooth, toothholder and locking piece, there is ledge toothholder front end, can be contained in the cavity of bucket tooth, by locking piece, toothholder and bucket tooth is combined and does not depart from.When bucket tooth changed by needs, by removing locking pin, change bucket tooth or denticle.Wherein locking pin is designed to reusable component more.
Because scraper bowl working environment is complicated, the stressing conditions also very severe of bucket tooth, in operation process, bucket tooth will bear the impact force and moment of torsion that the fluctuating loads such as axial load, vertical load, lateral load cause, and is in serious mill for a long time and scrapes state.To such an extent as to bucket tooth class packaging components needs often to change.In order to stand the load of above-mentioned load, bucket tooth must fastening being fixed on toothholder.Therefore, locking pin must easily be installed at the scene and change, and also must meet the adverse circumstances such as various burn into impacts.Existing a kind of locking pin, as Chinese patent application " locking pin of the improvement of excavating equipment ", (publication number is CN1286656A, publication date is March 7 calendar year 2001), this locking pin comprises the first stiffening member, second stiffening member and elastic component, first stiffening member two ends are provided with arm, each arm there is groove, these grooves mutually in the face of and determine that in its end locking reclines portion, second stiffening member respectively holds the joint being formed and insert in described groove, first, two components are separated from one another to determine a space between, its respectively end are formed the elastic component of lock-on connection, elastic component puts into first, space between two components, its lock-on connection is for inserting in described groove, thus make described first, two components and elastic component tightly lock together securely.There is following deficiency in the locking pin of this structure: the arm processing step trough 1, at the first stiffening member two ends, and successively to insert the second stiffening member and elastic component, the groove of two end arms is opposed facing, and there is processing dead angle, complex structure, difficulty of processing is large; 2, need first load the second stiffening member during assembling, then elastic component be filled in space between first and second component and groove with special tool(s), assembling difficulty; 3, elastic component exposes, and easily aging, application life is short.
Summary of the invention
The object of this invention is to provide a kind of locking pin, this locking pin can solve existing locking pin and add short, complex structure and the problem of assembling difficulty in application life.
In order to solve the problem, the technical solution used in the present invention is: this locking pin comprises shank, described shank is a straight-bar, the side opening of described shank is provided with groove, described shank is provided with the cover plate of closed described groove notch, movable tenon and elastic body is arranged with in the chamber that described cover plate and described groove surround formation, described movable tenon has the tenon stretching out described shank from described groove cell wall and the limiting section be placed in described groove, one end that described limiting section is connected with described tenon and described groove wall body offset, free end and the described elastic body of described limiting section abut against, described limiting section and described elastomeric seal are in described chamber.
In the technical scheme of above-mentioned locking pin, technical scheme can also be more specifically: described groove is provided with the recessed seam holding described cover plate.
Further, the end face of described recessed seam is provided with screwed hole, and described screwed hole is connected with the threaded connector of fixing described cover plate.
Further, the gathering sill being communicated with described groove is provided with at the side opening of described shank, the other end of described gathering sill extends to the outer wall of described straight-bar, described cover plate has the lug corresponding to described gathering sill, and described lug and described gathering sill are encircled into the through hole be slidably matched with the tenon of described movable tenon.
Further, described movable tenon is "T"-shaped piece, and two convex shoulders of described "T"-shaped piece are placed in described groove, and another one-sided protuberance of described "T"-shaped piece is described tenon, and described elastic body is pane, and the side of described pane is provided with recess.
Further, there are two described elastic bodys arranged in opposite directions, the limiting section of described movable tenon is placed between two described elastic bodys, described elastic body offers pit, the limiting section of described movable tenon is triangle plate, and the outline of described limiting section offsets with the cell wall of described groove and described elastic body respectively.
Further, described limiting section is isosceles triangle plate, and drift angle and each base angle of described limiting section are fillet.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, shank overall structure is closed, and elastomeric seal, in inside, reduces its aging speed, effectively extends application life, more can be suitable for the adverse circumstances that there are the phenomenons such as corrosion.
2, cover plate can be used for preventing elastic body from wearing and tearing, suppress elastic body and movable tenon to depart from the chamber of shank simultaneously, fix because cover plate is threaded connection part, both elastic body and movable tenon loss can effectively have been protected, more renew elastic body after being convenient to again elastomer degradation, then realize reusing of locking pin.
3, structure is simple, nothing processing dead angle, is cast or forge easily to realize batch production by essence.
4, each part fits relation is simple, and assembling easily, does not need special tool(s), so add locking pin to realize reusable possibility by changing part of damage, reduces use cost.
Accompanying drawing explanation
Fig. 1 be the present invention be applied to tooth cover and denticle connect time rigging position schematic diagram.
Fig. 2 is the decomposition texture schematic diagram of the embodiment of the present invention 1.
Fig. 3 is the front view of the embodiment of the present invention 1.
Fig. 4 is the sectional view in A-A direction in Fig. 3.
Fig. 5 is the structural representation of shank in embodiment 1.
Fig. 6 is the sectional view in B-B direction in Fig. 5.
Fig. 7 is the structural representation of movable tenon in embodiment 1.
Fig. 8 is the structural representation of embodiment 1 elastomer.
Fig. 9 is the structural representation of embodiment 1 cover plate.
Figure 10 is the assembling schematic diagram of the locking pin inside of embodiment 1.
Figure 11 is the assembling schematic diagram of the locking pin inside of the embodiment of the present invention 2.
Figure 12 is the structural representation of movable tenon in embodiment 2.
Figure 13 is the structural representation of embodiment 2 elastomer.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Embodiment 1
Locking pin 10 shown in Fig. 1 is for being connected and fixed the toothholder 20 of excavator and denticle 30, as shown in Figure 2, this locking pin 10 comprises shank 11, movable tenon 12, elastic body 13, cover plate 14 and threaded connector 15, wherein shank 11 and movable tenon 13 are made by steel, and elastic body 13 is made up of rubber, as shown in Figure 5 and Figure 6, shank 11 is straight-bars, this straight-bar is straight quadrangular, the two ends of shank 11 have groove 115, to be easy to insert in the pin hole of denticle 30 and toothholder 20, rectangular groove 111 is provided with at the side opening of shank 11, shank 11 is mounted with the cover plate 14 of this groove 111 notch closed, groove 111 notch edges is provided with the recessed seam 113 holding cover plate 14, the end face of recessed seam 113 is provided with multiple screwed hole 114, each screwed hole 114 is all connected with the threaded connector 15 through cover plate 14, for cover plate 14 is fixed on shank 11, see Fig. 4, , the threaded connector 15 of the present embodiment is bolt, and other embodiment can with threaded connectors such as screws, as shown in Figure 7, movable tenon 12 has tenon 121 and links all-in-one-piece limiting section 122 with tenon 121, as shown in Figure 10 and Fig. 3, movable tenon 12 and elastic body 13 is arranged in cover plate 14 and groove 111 surrounds in the chamber of formation, the gathering sill 112 of communication groove 111 is also offered in the side of shank 11, the other end of gathering sill 112 extends to the outer wall of shank 11, the bottom land of gathering sill 112 and the bottom land of groove 111 are at same plane, cover plate 14 has the lug 141 matched with the notch of gathering sill 112, see Fig. 9, lug 141 and gathering sill 112 are encircled into the through hole be slidably matched with the tenon 121 of movable tenon 12, the tenon 121 of movable tenon 12 stretches out shank 11 from this through hole, the external part of tenon 121 has the oblique surface or arc surface of assisting and entering or exiting in mortise, tenon 121 and mortise fasten, one end that the limiting section 122 of movable tenon 12 is connected with tenon 121 and groove 111 wall body offset, free end and the elastic body 13 of limiting section 122 abut against, limiting section 122 and elastic body 13 are sealed in described chamber, have in chamber and to move and elastically-deformable space occurs elastic body 13 for movable tenon 12, movable tenon 13 in the present embodiment is "T"-shaped piece, the one-sided protuberance of "T"-shaped piece is tenon 121, two convex shoulders of "T"-shaped piece are placed in groove 111, elastic body 13 is pane, the opposing cover plates 14 of this pane and the side of groove 111 bottom surface are equipped with recess 131, see Fig. 4 and Fig. 8, offseting with movable tenon 12 of pane, its excess-three limit abuts against to the corresponding cell wall of groove 11.
During use, the tenon 121 locking pin 10 being protruded shank 11 is positioned over and overlaps in 20 to denticle 30 or tooth the corresponding one side having mortise, then shank 11 is aimed at the pin hole of denticle 30 and tooth cover 20, shank 11 is inserted in pin hole, tenon 121 is pressed completely into when entering in pin hole in shank 11, elastic body 13 pressurized in this process produces elastic deformation, along with shank 11 deepens continuously pin hole, when tenon 121 arrives the mortise place that denticle 30 or tooth cover 20 are offered, movable tenon 12 makes tenon 12 stretch out shank 11 and enters in mortise under the elastic force effect of elastic body 13, thus realize engaging, elastic body 13 now restores to the original state, only need knock and locking pin 10 can be pulled down along shank 11 length direction during dismounting.
[0032] embodiment 2
As shown in Figure 11 to 13, the limiting section 422 of the movable tenon 42 in the present embodiment is isosceles triangle plate, and drift angle and each base angle of lid limiting section 422 are fillet; For ease of movable support pin, two elastic bodys 43 are provided with in groove, the elastic body 43 of the present embodiment is two wedges arranged in opposite directions, the inclined-plane 432 of two wedges is relative, the outline of limiting section 422 offsets with the opposite face of groove cell wall and two wedges respectively, and the cell wall that all the other each limits of wedge are corresponding to groove respectively abuts against, and wedge offers pit 431, see Figure 13, to produce required deformation.All the other features are identical with embodiment 1.
Claims (7)
1. a locking pin, comprise shank, it is characterized in that: described shank is a straight-bar, the side opening of described shank is provided with groove, described shank is provided with the cover plate of closed described groove notch, movable tenon and elastic body is arranged with in the chamber that described cover plate and described groove surround formation, described movable tenon has the tenon stretching out described shank from described groove cell wall and the limiting section be placed in described groove, one end that described limiting section is connected with described tenon and described groove wall body offset, free end and the described elastic body of described limiting section abut against, described limiting section and described elastomeric seal are in described chamber.
2. locking pin according to claim 1, is characterized in that: described groove is provided with the recessed seam holding described cover plate.
3. locking pin according to claim 2, is characterized in that: the end face of described recessed seam is provided with screwed hole, and described screwed hole is connected with the threaded connector of fixing described cover plate.
4. locking pin according to claim 2, it is characterized in that: be provided with the gathering sill being communicated with described groove at the side opening of described shank, the other end of described gathering sill extends to the outer wall of described shank, described cover plate has the lug corresponding to described gathering sill, and described lug and described gathering sill are encircled into the through hole be slidably matched with the tenon of described movable tenon.
5. the locking pin according to any one of Claims 1-4 claim, it is characterized in that: described movable tenon is "T"-shaped piece, two convex shoulders of described "T"-shaped piece are placed in described groove, another one-sided protuberance of described "T"-shaped piece is described tenon, described elastic body is pane, and the side of described pane is provided with recess.
6. the locking pin according to any one of Claims 1-4 claim, it is characterized in that: there are two described elastic bodys arranged in opposite directions, the limiting section of described movable tenon is placed between two described elastic bodys, described elastic body offers pit, the limiting section of described movable tenon is triangle plate, and the outline of described limiting section offsets with the cell wall of described groove and described elastic body respectively.
7. locking pin according to claim 6, is characterized in that: described limiting section is isosceles triangle plate, and drift angle and each base angle of described limiting section are fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410548039.7A CN104358287B (en) | 2014-10-16 | 2014-10-16 | Locking pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410548039.7A CN104358287B (en) | 2014-10-16 | 2014-10-16 | Locking pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104358287A true CN104358287A (en) | 2015-02-18 |
| CN104358287B CN104358287B (en) | 2017-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410548039.7A Active CN104358287B (en) | 2014-10-16 | 2014-10-16 | Locking pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104358287B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404311A (en) * | 2015-11-06 | 2016-03-16 | 中航华东光电有限公司 | Equipment control component position adjusting device |
| CN107839266A (en) * | 2017-11-30 | 2018-03-27 | 萨驰华辰机械(苏州)有限公司 | Drum watt and tread drum |
| CN109415885A (en) * | 2016-07-06 | 2019-03-01 | 成矿研究科技有限公司 | The abrasion of tool for earth mover or protection system and corresponding pin |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4823487A (en) * | 1987-07-30 | 1989-04-25 | Gh Hensley Industries, Inc. | Resilient flex pin apparatus for excavating tooth point and adapter assemblies |
| CN1129024A (en) * | 1993-02-02 | 1996-08-14 | 埃斯科公司 | Excavating tooth |
| CN1286656A (en) * | 1997-12-18 | 2001-03-07 | 埃斯科有限公司 | Improved locking pin for excavating equipment |
| US20060010725A1 (en) * | 2004-07-14 | 2006-01-19 | Jackson Michael J | Excavating tooth and adapter |
| CN103168138A (en) * | 2010-09-08 | 2013-06-19 | 汉斯莱工业公司 | Connector pin assembly with dual function outer end portions, and associated ground engaging apparatus |
-
2014
- 2014-10-16 CN CN201410548039.7A patent/CN104358287B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4823487A (en) * | 1987-07-30 | 1989-04-25 | Gh Hensley Industries, Inc. | Resilient flex pin apparatus for excavating tooth point and adapter assemblies |
| CN1129024A (en) * | 1993-02-02 | 1996-08-14 | 埃斯科公司 | Excavating tooth |
| CN1286656A (en) * | 1997-12-18 | 2001-03-07 | 埃斯科有限公司 | Improved locking pin for excavating equipment |
| US20060010725A1 (en) * | 2004-07-14 | 2006-01-19 | Jackson Michael J | Excavating tooth and adapter |
| CN103168138A (en) * | 2010-09-08 | 2013-06-19 | 汉斯莱工业公司 | Connector pin assembly with dual function outer end portions, and associated ground engaging apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404311A (en) * | 2015-11-06 | 2016-03-16 | 中航华东光电有限公司 | Equipment control component position adjusting device |
| CN109415885A (en) * | 2016-07-06 | 2019-03-01 | 成矿研究科技有限公司 | The abrasion of tool for earth mover or protection system and corresponding pin |
| CN107839266A (en) * | 2017-11-30 | 2018-03-27 | 萨驰华辰机械(苏州)有限公司 | Drum watt and tread drum |
| CN107839266B (en) * | 2017-11-30 | 2024-04-16 | 萨驰智能装备股份有限公司 | Drum shoe and tread drum |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104358287B (en) | 2017-04-05 |
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