CN203822810U - Elastic nut structure for internal contracting brake of two-plate injection molding machine - Google Patents
Elastic nut structure for internal contracting brake of two-plate injection molding machine Download PDFInfo
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- CN203822810U CN203822810U CN201420160902.7U CN201420160902U CN203822810U CN 203822810 U CN203822810 U CN 203822810U CN 201420160902 U CN201420160902 U CN 201420160902U CN 203822810 U CN203822810 U CN 203822810U
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- stress groove
- nut structure
- elastic nut
- connecting base
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Abstract
The utility model discloses an elastic nut structure for an internal contracting brake of a two-plate injection molding machine and belongs to the technical field of elastic nuts. The elastic nut structure is characterized by comprising two support bases matched with each other, wherein half-round positioning gaps matched with a pull rod are formed in the two support bases respectively; a plurality of semi-circular positioning grooves matched with toothed rings on the pull rod are axially formed in the positioning gaps at intervals; a first stress groove is formed in the bottom in each semi-circular positioning groove, the section of each first stress groove is an arc-shaped surface, and each first stress groove and each corresponding semi-circular positioning groove adopt an integrally-formed overall structure. The elastic nut structure for the internal contracting brake of the two-plate injection molding machine is reasonable, easy to machine, lower in manufacturing cost, capable of effectively solving the problem of stress concentration of the pull rod and applicable to the injection molding machine.
Description
Technical field
The utility model relates to a kind of nut structure, more particularly, relates in particular to a kind of elastic nut structure for two board injection machine band-type brakes.
Background technique
The motion speed of injection machine is more and more faster at present, how to guarantee the intensity of vitals, and avoiding too early inefficacy is the difficult problem that manufacturer need to face.Pull bar is the vitals of carrying mould clamping force, its failure mode is mainly that stress is concentrated and fatigue fracture, and the position of fracture is all generally the cooperation place at nut and pull bar, the structure of existing nut, its structure as shown in Figure 1, two interconnective bearings 10 are tetragonal body shape, and semi-circular locating slot 30 inner bottom parts in its locating notch 20 are plane structure.The method of now common solution pull bar fracture has following two kinds:
(1) the different two kinds of materials of Poisson's ratio coordinate.The method is usually used in day the machine, and the material of nut is generally copper, and price comparison is high;
(2) singly join each tooth distance of nut.The method is because difficulty of processing is large, therefore the popularization that is seldom applied.
This elastic nut structure can effectively solve the stress of pull bar and concentrate, and easy processing, low price.
Model utility content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, a kind of rational in infrastructure, easy processing is provided, cost is lower and can effectively solves the elastic nut structure for two board injection machine band-type brakes of bar stress concentration problem.
The technical solution of the utility model is achieved in that a kind of elastic nut structure for two board injection machine band-type brakes, comprise two bearings that cooperatively interact, on two bearings, be respectively equipped with the semicircular locating notch adapting with pull bar, in locating notch, be arranged at intervals with vertically the semi-circular locating slot that ring gear some and on pull bar matches, at semi-circular locating slot inner bottom part, be equipped with the first stress groove, the cross section of described the first stress groove is arc surface, the overall structure that described the first stress groove is formed in one with corresponding semi-circular locating slot.
Above-mentioned a kind of elastic nut structure for two board injection machine band-type brakes, described bearing is comprised of integrated connecting base and positioning seat, and semi-circular locating slot is positioned at the locating notch that positioning seat is corresponding; Described connecting base outer wall is semiorbicular curve slope, and curve slope is tilted to the free end of connecting base down by the contacting part of connecting base and positioning seat; Further, described connecting base bottom is provided with the second stress groove adapting with curve slope, and the cross section of described the second stress groove is arc surface, is rounding off connection between the second stress groove and curve slope.
The utility model adopts after said structure, by the plane structure in original semi-circular locating slot being designed to the first stress groove structure, make elastic nut of the present utility model effectively solve pull bar because of the concentrated problem of sudden change stress, the fatigue crack-resistant ability of raising rod; For further improving the concentrated ability of elastic nut reply bar stress, the tetragonal body bearing outer wall of original elastic nut is designed to have to the round structure of curve slope, and by the second stress groove contacting part of transition connecting base and connecting base dexterously.The utlity model has rational in infrastructure, processing cost is low, easy to process and service-strong advantage.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but do not form any restriction of the present utility model.
Fig. 1 is the structural representation of existing elastic nut bearing;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation of the utility model elastic nut bearing;
Fig. 4 is the local enlarged diagram at A place in Fig. 3;
Fig. 5 is use view of the present utility model.
In figure: bearing 1, connecting base 1a, positioning seat 1b, locating notch 2, semi-circular locating slot 3, the first stress groove 4, curve slope 5, the second stress groove 6.
Embodiment
Consult shown in Fig. 2 to Fig. 4, a kind of elastic nut structure for two board injection machine band-type brakes of the present utility model, comprise two bearings that cooperatively interact 1, on two bearings 1, be respectively equipped with the semicircular locating notch 2 adapting with pull bar, in locating notch 2, be arranged at intervals with vertically the semi-circular locating slot 3 that ring gear some and on pull bar matches, at semi-circular locating slot 3 inner bottom parts, be equipped with the first stress groove 4, the cross section of described the first stress groove 4 is arc surface, the overall structure that described the first stress groove 4 is formed in one with corresponding semi-circular locating slot 3.
Particularly, in the present embodiment, described bearing 1 is comprised of integrated connecting base 1a and positioning seat 1b, and semi-circular locating slot 3 is positioned at the locating notch 2 that positioning seat 1b is corresponding; Described connecting base 1a outer wall is semiorbicular curve slope 5, curve slope 5 is tilted to the free end of connecting base 1a down by the contacting part of connecting base 1a and positioning seat 1b, by this curve slope 5, change the cross-section area of connecting base 1a, made the amount of deformation of the tooth of formation between upper adjacent two the semi-circular locating slots 3 of connecting base 1a be linear change.Meanwhile, in connecting base 1a bottom, be provided with the second stress groove 6 adapting with curve slope 5, the cross section of described the second stress groove 6 is arc surface, is rounding off connection between the second stress groove 6 and curve slope 5.Can further improve like this elastic nut reply pull bar sudden change and produce the concentrated problem of stress.
Consult shown in Fig. 5, during installation, two bearing 1 corresponding clips are located to pull bar periphery, the gear ring on pull bar is snapped in semi-circular locating slot 3 corresponding on two bearings 1, then locking nut.
Above illustrated embodiment is better embodiment of the present utility model, only be used for facilitating explanation the utility model, not the utility model is done to any pro forma restriction, under any, in technical field, have and conventionally know the knowledgeable, if within not departing from the scope of technical characteristics that the utility model is put forward, utilize technology contents that the utility model discloses to do the local equivalent embodiment who changes or modify, and do not depart from technical characteristics content of the present utility model, all still belong in the scope of the utility model technical characteristics.
Claims (3)
1. the elastic nut structure for two board injection machine band-type brakes, comprise two bearings that cooperatively interact (1), on two bearings (1), be respectively equipped with the semicircular locating notch (2) adapting with pull bar, in locating notch (2), be arranged at intervals with vertically the semi-circular locating slot (3) that ring gear some and on pull bar matches, it is characterized in that, at semi-circular locating slot (3) inner bottom part, be equipped with the first stress groove (4), the cross section of described the first stress groove (4) is arc surface, the overall structure that described the first stress groove (4) is formed in one with corresponding semi-circular locating slot (3).
2. a kind of elastic nut structure for two board injection machine band-type brakes according to claim 1, it is characterized in that, described bearing (1) is comprised of integrated connecting base (1a) and positioning seat (1b), and semi-circular locating slot (3) is positioned at the locating notch (2) that positioning seat (1b) is corresponding; Described connecting base (1a) outer wall is semiorbicular curve slope (5), and curve slope (5) is tilted to the free end of connecting base (1a) down by the contacting part of connecting base (1a) and positioning seat (1b).
3. a kind of elastic nut structure for two board injection machine band-type brakes according to claim 2, it is characterized in that, described connecting base (1a) bottom is provided with the second stress groove (6) adapting with curve slope (5), the cross section of described the second stress groove (6) is arc surface, is rounding off connection between the second stress groove (6) and curve slope (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160902.7U CN203822810U (en) | 2014-04-02 | 2014-04-02 | Elastic nut structure for internal contracting brake of two-plate injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160902.7U CN203822810U (en) | 2014-04-02 | 2014-04-02 | Elastic nut structure for internal contracting brake of two-plate injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822810U true CN203822810U (en) | 2014-09-10 |
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ID=51478319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420160902.7U Expired - Fee Related CN203822810U (en) | 2014-04-02 | 2014-04-02 | Elastic nut structure for internal contracting brake of two-plate injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275956A (en) * | 2015-11-04 | 2016-01-27 | 北方重工集团有限公司 | Cone nut for hydraulic machine |
-
2014
- 2014-04-02 CN CN201420160902.7U patent/CN203822810U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275956A (en) * | 2015-11-04 | 2016-01-27 | 北方重工集团有限公司 | Cone nut for hydraulic machine |
| CN105275956B (en) * | 2015-11-04 | 2017-10-20 | 北方重工集团有限公司 | A kind of hydraulic press cone nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20170402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |