CN208358698U

CN208358698U - A kind of small-sized pin removal

Info

Publication number: CN208358698U
Application number: CN201820969868.6U
Authority: CN
Inventors: 李响; 李军民
Original assignee: Hubei Sanjiang Aerospace Honglin Exploration and Control Co Ltd
Current assignee: Hubei Sanjiang Aerospace Honglin Exploration and Control Co Ltd
Priority date: 2018-06-22
Filing date: 2018-06-22
Publication date: 2019-01-11
Anticipated expiration: 2028-06-22

Abstract

The utility model discloses a kind of small-sized pin removals, belong to Actuator technique field, it by being arranged pulling pin for stepped shaft structure in the housing, and spring and locking member is arranged in corresponding its, then the position pulled pin is locked with the locking pin in locking member, pull pin end and the external component stable matching for guaranteeing to pull pin, and it is correspondingly moved by controlling locking pin, so that locking member releases the restriction to end of pulling pin, then the effect for passing through spring restoring force pushes the end of pulling pin pulled pin to enter in shell, completes process of pulling pin.The small-sized pin removal of the utility model, structure is simple, small volume, controls convenient, fast response time, can accurately and rapidly realize function of pulling pin, applied widely, and control precision is high, has good promotion and application value.

Description

A kind of small-sized pin removal

Technical field

The utility model belongs to Actuator technique field, and in particular to a kind of small-sized pin removal.

Background technique

Actuator is widely used, such as Mechatronic Systems and force as a kind of range controlling mechanism in multiple fields Device system.With the continuous development of modern industry and science and technology, more requirements also proposed to the performance of actuator, so that It constantly develops to the directions such as miniaturization, big stroke, high response speed.

In the prior art, pin removal and promotional implement are often classified as according to the difference of actuator driving method, and passed The actuator of system is to complete actuation process based on electromagnetic drive or gunpowder driving mostly, wherein the actuator of electromagnetic drive It is mainly made of armature, yoke, solenoid component, spring, pin etc., generates magnetic field after being powered using solenoid component, make soft magnetism material Expect that the armature of production, yoke magnetize, the magnetic force of armature and yoke overcomes spring resistance, and armature motion drives pin movement, then The actuation process of actuator is completed, often there is structure is complicated, volume is larger, expensive, long-term place is easy for the structure Occur demagnetization, work long hours be easy to burn out solenoid component, the problems such as actuation time is non-adjustable；And the actuator master of gunpowder driving If generating gas driven piston using powder burning to do work, moved by piston driving pin to complete the actuation of actuator Journey is still influenced, gunpowder driver is often deposited in practical applications by factors such as structure, gas pressure direction of transfer and sealings The problems such as reliability is low, energy conversion efficiency is low, safety is poor, there is certain application limitation.

Utility model content

Aiming at the above defects or improvement requirements of the prior art, the utility model provides a kind of small-sized pin removal, leads to It crosses and pulling pin for stepped shaft structure is set in the housing, and spring and locking member is arranged in corresponding its, then in locking member Locking pin locks the position pulled pin, pull pin end and the external component stable matching for guaranteeing to pull pin, and passes through control locking Pin correspondingly moves, so that locking member releases the restriction to end of pulling pin, is then pulled out by the effect promotion of spring restoring force The end of pulling pin of pin enters in shell, completes process of pulling pin, whole process control is simple, and response rapidly, precisely, can be realized rapidly It pulls pin process.

To achieve the above object, the utility model provides a kind of small-sized pin removal, which is characterized in that including shell, pull pin, Spring and locking member, wherein

Ladder hole, i.e. first through hole are offered between the both ends of the surface of the shell, the first through hole is one end internal diameter Less than the two-part structure of other end internal diameter, the intersection of two-part structure forms annular step surface, and in the side of the shell Offer the second through-hole for being connected to the first through hole on week, the axis of the axis of second through-hole perpendicular to the first through hole Line；

Described to pull pin in stepped shaft structure, one end is the lesser end of pulling pin of outer diameter, and the other end is the biggish limit of outer diameter End, described pull pin are co-axially located in the first through hole, and pulling pin, it is corresponding across the first through hole internal diameter lesser one to hold It holds and the end face of the shell is protruded to match with external component with end；

The spring precommpression setting, is coaxially set on the periphery at the end of pulling pin, and abut institute respectively with both ends State the end face of annular step surface and the positive stop end；

The locking member coaxial arrangement is in second through-hole comprising the lock being coaxially set with second through-hole Rationed marketing, the positive stop end pulled pin described in the end abutment of the locking pin, to limit to described pull pin, and the locking pin can It is moved along the direction away from the first through hole, so that the positive stop end pulled pin described in the end disengaging of the locking pin, then Described pull pin can act on the axial-movement of first through hole described in lower edge, i.e., the end at the described end of pulling pin in the restoring force of the spring It can enter in the first through hole and be detached from the external component, complete process of pulling pin.

The locking member includes ontology, fusible alloy block and heating sheet, institute as a further improvement of the utility model, It states fusible alloy block to be arranged on the heating sheet and abut with the locking pin away from one end of the first through hole, and described Fusible alloy block can heat fusing after heating sheet energization, and correspond to the fusible alloy block on the body and open up There is tap hole, the fusible alloy export after melting.

It is corresponding on the housing as a further improvement of the utility model, to offer accommodation groove, the accommodation groove with The tap hole is interconnected, that is, the fusible alloy after melting can flow into the accommodation groove.

The positive stop end opens up upwards away from the peripheral ring of the spring one end as a further improvement of the utility model, Have the first chamfering of certain angle, the locking pin abut described in one end peripheral ring for pulling pin offer the of certain angle upwards Two chamferings, and the positive stop end is mutually abutted with the locking pin with fillet surface.

First chamfering is 45 ° as a further improvement of the utility model, and second chamfering is 45 °, i.e., two institutes The angle for stating fillet surface and respective axes is respectively 45 °.

The one end at the end of pulling pin is provided with pressure in the first through hole as a further improvement of the utility model, Spiral shell.

The fusible alloy block is wood's alloy as a further improvement of the utility model, and chemical component is The chemical component of 50%Bi-25%Pb-12.5%Sn-12.5%Cd or the fusible alloy block is 52%Bi-32%Pb- 16%Sn.

The heating sheet is thermal sensitive ceramics piece as a further improvement of the utility model,.

In general, have the above technical solutions conceived by the present invention are compared with the prior art, with following Beneficial effect:

(1) the small-sized pin removal of the utility model by the way that pulling pin for stepped shaft structure is arranged in the housing, and corresponds to it Spring and locking member are set, then the position pulled pin is locked with the locking pin in locking member, guarantee to pull pin pulls out End and external component stable matching are sold, and by the locking pin movement of control locking member, so that locking member is released to pulling pin The restriction of end, the effect for then passing through spring restoring force pushes the end of pulling pin pulled pin to enter in shell, completes process of pulling pin, whole A process control is simple, response rapidly, can precisely, rapidly realize the process of pulling pin；

(2) the small-sized pin removal of the utility model is led to by the way that heating sheet and fusible alloy block are arranged in locking member Restriction of the melted by heat Rapid reversal locking pin of fusible alloy block to end of pulling pin is crossed, the response effect of pin removal is effectively improved Rate improves the control precision of pin removal；

(3) the small-sized pin removal of the utility model, structure is simple, small volume, controls convenient, fast response time, energy Accurately and rapidly realize function of pulling pin, applied widely, control precision is high, has good promotion and application value.

Detailed description of the invention

Fig. 1 is that pulling pin for the middle-size and small-size pin removal of the utility model embodiment does not pull out back status diagram；

Fig. 2 is that pulling pin for the middle-size and small-size pin removal of the utility model embodiment pulls out back status diagram；

In all the appended drawings, same appended drawing reference indicates identical technical characteristic, specifically: 1. shells, 2. pull pin, and 3. Locking pin, 4. springs, 5. fusible alloy blocks, 6. pressure spiral shells, 7. heating sheets, 8. accommodation grooves.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this Utility model is not used to limit the utility model.

As long as in addition, technical characteristic involved in the various embodiments of the present invention described below each other it Between do not constitute conflict and can be combined with each other.

Small-sized pin removal in the preferred embodiment in the utility model is as shown in Figures 1 and 2, wherein small-sized pin removal packet Include shell 1, pull pin 2 and locking member.

Further and specifically, it is preferable to which the structure cylindrical of shell 1 in embodiment, is provided in the axial direction with through both ends of the surface Ladder hole, i.e. first through hole, one end internal diameter of first through hole is smaller, and one end internal diameter is larger, and the intersection shape at both ends Step circlewise；Further, 2 corresponding first through hole of pulling pin are arranged, and one end is the lesser end of pulling pin of outer diameter, and the other end is The biggish positive stop end of outer diameter, and the outer diameter at end of pulling pin corresponds to the setting of the smaller internal diameter in first through hole, the outer diameter of positive stop end is corresponding Biggish internal diameter setting in first through hole so that pull pin 2 can Corresponding matching into first through hole, end of pulling pin can correspond to coaxially It is inserted into the lesser one end of first through hole internal diameter, and is pierced by from a side end face of shell 2, thus the external structure under matching initial state Part.

Further, corresponding pull pin 2 is provided with spring 4, is set in pull pin and 2 pulls pin and hold on periphery, and its both ends can Respectively pull pin 2 match into first through hole after abut respectively step annular in shape in first through hole and pull pin 2 positive stop end end face, As shown in fig. 1.

Further, first through hole being corresponded on the side week of shell 1 and offering the second through-hole, the axis of the second through-hole is preferred Perpendicular to the axis of first through hole, and the second through-hole corresponds to connection first through hole, and locking is correspondingly arranged in the second through-hole Component, be used to lock do not pull out back pull pin 2；Further, it is preferable to which the locking member in embodiment includes ontology and locking pin 3, ontology is coaxially fixed in the second through-hole, and locking pin 3 is coaxially disposed on the body, can be moved along the axial reciprocating of ontology Move correspond to realize with pull pin 2 matching or disengaging.

It is further preferred that corresponded in locking member in preferred embodiment locking pin 3 be provided with fusible alloy block 5 and plus Backing 7, wherein the side that ontology deviates from first through hole is arranged in heating sheet 7, and fusible alloy block 5 is arranged on heating sheet 7, lock One end of rationed marketing 3 be matching pull pin 2 mating end, the corresponding side be close to fusible alloy block 5 and deviate from heating sheet 7 of the other end, As shown in fig. 1, locking pin 3 is limited by fusible alloy block 5, allow locking pin 3 abut pull pin 2 positive stop end end； Further, fusible alloy block 5 is corresponded on the body and is provided with tap hole, and corresponding region offers accommodating on shell 1 Slot 8, so that locking member Corresponding matching is into after shell 1, accommodation groove 8 can fusible alloy with tap hole to just, after then melting It can be flowed into accommodation groove 8 from tap hole, release the limitation to locking pin 3.

Certainly, the control of locking pin 3 is also not limited to above-mentioned documented form, can also be preferably according to actual needs Other control form, such as Electromagnetic Control, memorial alloy is selected to control locking and retraction that other form realizes locking pin 3, this It is easier to realize according to related art method in the prior art, so this will not be repeated here.

Further, deviate from the side periphery for pulling pin end in 2 positive stop ends of pulling pin and circumferentially offer falling for certain angle Angle correspondingly offers the chamfering of certain angle on one end periphery of the locking pin 3 close to first through hole, i.e., in 2 and the lock of pulling pin The end of rationed marketing 3 is formed and respective axis fillet surface in a certain angle, and then locking pin 3 can be abutted with the fillet surface of end and be pulled out Fillet surface on 2 positive stop end of pin, realize locking pin 3 to pull pin 2 limit, 2 in running order, ends of pulling pin of pulling pin at this time End protrudes from the end face of shell 1, and spring 4 is in compressive state；It is further preferred that pull pin 2 and 3 end of locking pin fall Both angle is respectively 45 °, i.e., the fillet surface for mutually abutting side is bonded to each other, certainly, pull pin 2 and the chamfering of locking pin 3 can also It is preferably according to actual needs other angle, this is relatively easy to realize by the prior art, so this will not be repeated here.

Further, it is preferable to which 2 Corresponding matchings of pulling pin in embodiment are into after first through hole, in first through hole away from end of pulling pin A side end be provided with pressure spiral shell 6,2 limits will be pulled pin in first through hole, it is prevented to be detached from from first through hole.Further Preferably, fusible alloy block 5 is the wood's alloy that chemical component is 50%Bi-25%Pb-12.5%Sn-12.5%Cd (72 DEG C of fusing point) or chemical component are the fusible alloy (96 DEG C of fusing point) of 52%Bi-32%Pb-16%Sn, and heating sheet 7 is preferred For thermal sensitive ceramics piece.

When small-sized pin removal in the utility model is in original state, the end-beveling face of locking pin 3, which abuts, pulls pin 2 End-beveling face, will pull pin certain position of 2 limits in first through hole, and 2 end of pulling pin of pulling pin is worn from first through hole Out and protrude from the end face of shell 1, pull pin end and the work of corresponding parts match, then when small-sized pin removal needs work When, to heating sheet 7 be powered, make its heat meltable alloy block 5, then fusible alloy block 5 melt, locking pin 3 pull pin 2 effect It is lower to be moved close to heating sheet 7, and the fusible alloy after fusing is pushed in accommodation groove 8, so that pull pin 2 can restore in spring 4 Power effect is lower to be moved close to pressure spiral shell 6, and the end at end of pulling pin retracts in first through hole, and as shown in Figure 2, that is, end of completing to pull pin is pulled out Pin process.

The small-sized pin removal of the utility model, structure is simple, small volume, and control is easy, by the way that stepped shaft structure is arranged Pull pin 2 with 4 Corresponding matching of spring, then be correspondingly arranged locking member, 2 original state of pulling pin limited with its locking pin 3 Position so that pull pin 2 working condition of the end of pulling pin always in prominent 1 end face of shell, and the position control of locking pin 3 pass through it is easy The melting for fusing gold bullion 5 realizes, locking pin 3 releases quick to 2 limit of pulling pin, and can quickly complete pulling pin for pin removal Journey improves the accuracy of small-sized pin removal control, along with the small volume of pin removal, perfect can be suitable for a variety of using ring Border has preferable application and popularization value.

As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change Into etc., it should be included within the scope of protection of this utility model.

Claims

1. a kind of small-sized pin removal, which is characterized in that including shell (1), pull pin (2), spring (4) and locking member, wherein

Ladder hole, i.e. first through hole are offered between the both ends of the surface of the shell (1), the first through hole is that one end internal diameter is small Annular step surface is formed in the intersection of the two-part structure of other end internal diameter, two-part structure, and in the side of the shell (1) Offer the second through-hole for being connected to the first through hole on week, the axis of the axis of second through-hole perpendicular to the first through hole Line；

In stepped shaft structure, one end is the lesser end of pulling pin of outer diameter for described pull pin (2), and the other end is the biggish limit of outer diameter End, pull pin (2) are co-axially located in the first through hole, are pulled pin and are held correspondence lesser across the first through hole internal diameter One end simultaneously protrudes from the end face of the shell (1) with end to match with external component；

Spring (4) precommpression setting is coaxially set on the periphery at the end of pulling pin, and described in being abutted respectively with both ends The end face of annular step surface and the positive stop end；

The locking member coaxial arrangement is in second through-hole comprising the locking pin being coaxially set with second through-hole (3), it pulls pin described in the end abutment of the locking pin (3) positive stop end of (2), to be limited to pull pin (2), and it is described Locking pin (3) can be moved along the direction away from the first through hole, so that pulling pin described in the end disengaging of the locking pin (3) (2) positive stop end, then pull pin (2) can act on the axis of first through hole described in lower edge in the restoring force of the spring (4) The end of movement, i.e., the described end of pulling pin can enter in the first through hole and be detached from the external component, complete process of pulling pin.

2. small-sized pin removal according to claim 1, wherein the locking member include ontology, fusible alloy block (5) and Heating sheet (7), the fusible alloy block (5) are arranged on the heating sheet (7) and deviate from described first with the locking pin (3) One end of through-hole abuts, and the fusible alloy block (5) can heat fusing after the heating sheet (7) are powered, and described The fusible alloy block (5) is corresponded on ontology offers tap hole, the fusible alloy export after melting.

3. small-sized pin removal according to claim 2, wherein correspondence offers accommodation groove (8) on the shell (1), The accommodation groove (8) and the tap hole are interconnected, that is, the fusible alloy after melting can flow into the accommodation groove (8).

4. small-sized pin removal described in any one of claim 1 to 3, wherein the positive stop end deviates from the spring (4) The peripheral ring of one end offers the first chamfering of certain angle upwards, is pulled pin outside the one end of (2) described in locking pin (3) abutting Chow ring offers the second chamfering of certain angle upwards, and the positive stop end is mutually abutted with the locking pin (3) with fillet surface.

5. small-sized pin removal according to claim 4, wherein first chamfering is 45 °, and second chamfering is 45 °, I.e. two fillet surfaces and the angle of respective axes are respectively 45 °.

6. small-sized pin removal described in any one of claim 1 to 3, wherein pulled out in the first through hole away from described The one end at pin end is provided with pressure spiral shell (6).

7. small-sized pin removal according to claim 2 or 3, wherein the fusible alloy block (5) is wood's alloy, Its chemical component is 50%Bi-25%Pb-12.5%Sn-12.5%Cd or the chemical component of the fusible alloy block (5) is 52%Bi-32%Pb-16%Sn.

8. small-sized pin removal according to claim 2 or 3, wherein the heating sheet (7) is thermal sensitive ceramics piece.