CN104076862A - Rotation limiting device - Google Patents
Rotation limiting device Download PDFInfo
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- CN104076862A CN104076862A CN201410239254.9A CN201410239254A CN104076862A CN 104076862 A CN104076862 A CN 104076862A CN 201410239254 A CN201410239254 A CN 201410239254A CN 104076862 A CN104076862 A CN 104076862A
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- collision block
- projection
- rotary body
- annulus
- pedestal
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Abstract
The invention relates to a rotation limiting device. The rotation limiting device is safe and stable. The rotation limiting device comprises a base, bumping blocks, a rotating body and a fixing shaft, wherein the base comprises a base plate, a limiting block and a ring protrusion, and the limiting block is arranged on the upper surface of the base plate; the ring protrusion is arranged on the upper surface of the limiting block, an inner hole of the ring protrusion is a positioning hole; each bumping block comprises a ring; the ring protrusion is sleeved with the bumping blocks through the rings; a convex block is further arranged on the outer wall of the ring of each bumping block, and the lower surface of each convex block is located between the lower surface and the upper surface of the limiting block; the rotating body is provided with a through hole, and the axis of the through hole coincides with the axis of the ring protrusion of the base; a boss is further arranged on the lower surface of the rotating body, and the lower surface of the boss is located between the lower surfaces and the upper surfaces of the convex blocks of the bumping blocks; the fixing shaft sequentially penetrates through the through hole and a positioning hole from top to bottom so as to connect the rotating body, the bumping blocks and the base into a whole. The limiting period can be prolonged by increasing the number of the bumping blocks.
Description
Technical field
The present invention relates to a kind of mechanical stop limiter, particularly a kind of rotary machine stop means.
Background technology
In general servo-drive system, servo rotating shaft stop means comprises software, hardware limit protective device, and in the time that rotating shaft rotational angle exceedes 360 °, software limit implements relatively easily, and in the time of software failure, hardware limit just becomes extremely important.If hardware limit is unreliable, once servo-drive system " driving ", can be by the task device cable cutting in servo-drive system when serious, this consequence is very serious.
Existing multipurpose rotary mechanical position limitation adopts 90 ° of shift forks, on 90 ° of summits of shift fork, rotating shaft is set, and collision block clashes into shift fork from different directions, can form respectively spacing position or be rotated further state.But, because shift fork is only fixed by axle, there is no strong restraint force, if thereby shift fork is while being subject to External Force Acting in a certain position (self gravitation, vibration equipment, artificial being not intended to change), may change its state, thereby change the subregion of rotation axis, the normal work of the equipment that affects or damage equipment.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of simple in structure, cost is low, the rotating limit device of safety and stability.
A kind of rotating limit device of the present invention, comprising: pedestal, collision block, rotary body, stationary shaft.
Described pedestal comprises base plate, limited block, annulus projection; Described limited block is arranged at plate upper surface; Described annulus projection is arranged at limited block upper surface; The endoporus of described annulus projection is pilot hole.
Described collision block comprises an annulus, and the internal diameter of annulus and the annulus of pedestal projection external diameter adapts.The outer wall of described annulus is also provided with a projection.Described collision block quantity is n, and wherein n is more than or equal to 1.Described first collision block is enclosed within by annulus in the annulus projection of pedestal; The lower surface of described first collision block projection is between the lower surface and upper surface of limited block; Described second, the 3rd until n collision block coaxially arrange with first collision block successively from bottom to top, wherein the lower surface of second collision block projection is between the upper surface of the 1st collision block projection and the upper surface of pedestal limited block, and the lower surface of n collision block projection is between the upper surface of n-1 collision block projection and the upper surface of n-2 collision block projection.
Described rotary body is provided with a through hole, the dead in line of the axis of described through hole and pedestal annulus projection; The lower surface of described rotary body is also provided with boss; When n equals for the moment, the lower surface of described boss is between the upper surface of collision block projection and the upper surface of pedestal limited block; When n is greater than for the moment, the lower surface of described boss is between the upper surface of described n collision block projection and the upper surface of n-1 collision block projection;
Described stationary shaft is from top to bottom successively through the through hole of rotary body, the annulus of collision block, the pilot hole of pedestal, and by relatively fixing the position of rotary body, collision block, pedestal in the vertical direction, wherein rotary body, each collision block can rotate around the axis of stationary shaft respectively.
A kind of rotating limit device of the present invention, the boss of wherein said rotary body has a breach, and described breach is stuck in the edge of n collision block annulus.
A kind of rotating limit device of the present invention, the both sides of wherein said rotary body boss are provided with reinforcement.
A kind of rotating limit device of the present invention, wherein said stationary shaft is fixedly connected with rotary body, and described stationary shaft and pilot hole clearance fit form revolute pair.
A kind of rotating limit device of the present invention, the through hole xsect of wherein said rotary body is many prismatics, and the upper end xsect of described stationary shaft is identical with the through hole xsect of rotary body, and the lower end xsect of described stationary shaft is circular.
A kind of rotating limit device of the present invention, the through hole xsect of wherein said rotary body is the closed-loop of regular polygon or major arc and string composition.
A kind of rotating limit device of the present invention, the top of wherein said rotary body is also provided with groove, and the top of described stationary shaft is provided with flanged plate, and the shape of described flanged plate is identical with groove shapes, and described flanged plate is embedded in groove.
Rotating limit device difference from prior art of the present invention is that each driving parts of rotating limit device of the present invention all turns round in horizontal plane.Even the direction of motion that the effect that the parts that move in horizontal extent are subject to other external force can modifier yet; compared to 90 ° of traditional shift fork stop means; the present invention has operation to stablize, saves space-efficient advantage, and equipment has been played to protective effect.
Below in conjunction with accompanying drawing, rotating limit device of the present invention is described further.
Brief description of the drawings
Fig. 1 is the decomposing schematic representation of the first rotating limit device of the present invention;
Fig. 2 is the three-dimensional cutaway view of the first rotating limit device of the present invention;
Fig. 3 is the use constitutional diagram one of the first rotating limit device of the present invention;
Fig. 4 is the use constitutional diagram two of the first rotating limit device of the present invention;
Fig. 5 is the use constitutional diagram three of the first rotating limit device of the present invention;
Fig. 6 is the use constitutional diagram four of the first rotating limit device of the present invention;
Fig. 7 is the use constitutional diagram five of the first rotating limit device of the present invention;
Fig. 8 is the use constitutional diagram six of the first rotating limit device of the present invention;
Fig. 9 is the structural representation of the second rotating limit device of the present invention.
Embodiment
Embodiment mono-:
As shown in Figure 1 and Figure 2, the first rotating limit device that the present embodiment provides, comprising: pedestal 1, collision block 2, rotary body 3, stationary shaft 4;
Pedestal 1 comprises base plate 11, limited block 12, annulus projection 13; Limited block 12 is arranged at base plate 11 upper surfaces; Annulus projection 13 is arranged at limited block 12 upper surfaces; The endoporus of annulus projection 13 is pilot hole 14;
Collision block 2 is circular, and the internal diameter of annulus 21 and annulus projection 13 external diameters adapt; Collision block 2 is enclosed within annulus projection 13 by annulus 21; Annulus 21 outer walls of collision block 2 are also provided with a projection 22, and the lower surface of projection 22 is between the lower surface and upper surface of limited block 12.
Rotary body 3 is provided with the through hole 33 that an xsect is the closed-loop of major arc and string composition, the dead in line of the axis of through hole 33 and annulus projection 13; The lower surface of rotary body 3 is also provided with boss 32, and the both sides of boss 32 are provided with reinforcement, and the lower surface of boss 32 is between the upper surface of projection 22 and the upper surface of pedestal 1 limited block 22; Boss 32 also has a breach, and breach is stuck in the edge of annulus 21.The top of rotary body 3 is also provided with a circular groove 31.
Stationary shaft 4 is from top to bottom successively through through hole 33, pilot hole 14, by relatively fixing the position of rotary body 3, collision block 2, pedestal 1 in the vertical direction, wherein upper end 42 xsects of stationary shaft 4 are identical with through hole 33 xsects, and rotary body 3 is fixedly connected with upper end 42 interference fit of stationary shaft 4 by through hole 33; Lower end 41 xsects of stationary shaft 4 are circular, form revolute pair with pilot hole 14 clearance fit.The top of stationary shaft 4 is provided with flanged plate 43, and the shape of flanged plate 43 is identical with groove 31 shapes, and flanged plate 43 is embedded in groove 31.
The course of work of the present embodiment the first rotating limit device is as follows:
Be illustrated in figure 3 the initial position of rotating limit device, limited block 12, projection 22, boss 32 attach successively mutually; Next as shown in Figure 4, Figure 5, rotary body 3 is rotated counterclockwise around the axis of stationary shaft 4, until rotate to position as shown in Figure 6, a side of boss 32 touches a side of projection 22; This moment, rotary body 3 continues to be rotated counterclockwise, while boss 32 promotes projection 22 and rotates, and then drive collision block 2 to be rotated counterclockwise around stationary shaft axis, until rotate to position as shown in Figure 7, limited block 12, projection 22, boss 32 attach again successively mutually, but the position relationship between their threes is contrary with initial position this moment, so far, the present embodiment rotating limit device just completes half period work; And then, system is sent the instruction that turns clockwise, and boss 32 turns to and starts to clockwise rotate as shown in Figure 8, until complete remaining half period, remaining half period and upper half period are roughly the same, and just rotation direction is contrary.
In the time that limited block 12, projection 22, boss 32 return to the state of initial position, a work period of the present embodiment the first rotating limit device has just completed, and is exactly next to repeat the whole work period recited above always.
The xsect of the through hole 33 of the present embodiment the first rotating limit device rotary body 3 is for also can be regular polygon, such as: square, regular pentagon etc.
Embodiment bis-:
Figure 9 shows that the second rotating limit device that the present embodiment provides.The difference of the first rotating limit device that the second rotating limit device that the present embodiment provides and embodiment mono-provide is:
The second rotating limit device that the present embodiment provides comprises three collision blocks 2, and first collision block 2 is enclosed within by annulus 21 in the annulus projection 13 of pedestal; The lower surface of first collision block projection 22 is between the lower surface and upper surface of limited block 12; Second, the 3rd collision block 2 coaxially arranges with first collision block 2 from bottom to top successively, and the lower surface of second collision block projection 22 is between the upper surface of first collision block projection 22 and the upper surface of pedestal limited block 12; The lower surface of the 3rd collision block projection 22 is between the upper surface of second collision block projection 22 and the upper surface of first collision block projection 22.The lower surface of rotary body boss 32 is between the upper surface of described the 3rd collision block projection 22 and the upper surface of second collision block projection 22.The breach of rotary body boss 32 is stuck in the edge of the 3rd collision block annulus 21.Stationary shaft 4 is from top to bottom successively through the through hole 33 of rotary body 3, the annulus 21 of the second collision block 2, the annulus 21 of the 3rd collision block 2, the pilot hole 14 of pedestal 1, by relatively fixing the position of rotary body 3, three collision blocks 2, pedestal 1 in the vertical direction, wherein rotary body 3, each collision block 2 can be respectively around the axis rotation of stationary shaft 4.
The course of work of the present embodiment the second rotating limit device is as follows:
Be illustrated in figure 9 the initial position of the present embodiment the second rotating limit device, limited block 12, three projections 22, boss 32 attach successively mutually; Next, rotary body 3 is rotated counterclockwise around the axis of stationary shaft 4, until rotate to a side of boss 32 and touch a side of the 3rd collision block projection 22; This moment, rotary body 3 continues to be rotated counterclockwise, simultaneously boss 32 promotes the 3rd collision block projection 22 and rotates, and then drives the 3rd collision block 2 to be rotated counterclockwise around stationary shaft 4 axis, until rotate to a side of the 3rd collision block projection 22 and touch a side of the second collision block projection 22; This moment, rotary body 3 continues to be rotated counterclockwise, boss 32 promotes the 3rd collision block projection 22 simultaneously and the second collision block projection 22 rotates, and then drive the 3rd collision block 2 and the second collision block 2 to be rotated counterclockwise around stationary shaft 4 axis, until a side of the second collision block projection 22 touches a side of the first collision block projection 22; This moment, rotary body 3 continues to be rotated counterclockwise, boss 32 promotes the 3rd collision block projection 22, the second collision block projection 22 and the first collision block projection 22 simultaneously and rotates, and then drive the 3rd collision block 2, the second collision block 2 and the 3rd collision block 2 to be rotated counterclockwise around stationary shaft 4 axis, until rotate to a side of the first collision block projection 2 and touch a side of pedestal limited block 12 simultaneously.So far, the present embodiment the second rotating limit device just completes half period work; And then, system is sent the instruction that turns clockwise, and boss 32 turns to and starts to clockwise rotate, until complete remaining half period, remaining half period and upper half period are roughly the same, and just rotation direction is contrary.
In the time that limited block 12, three projections 22, boss 32 return to the state of initial position, a work period of the present embodiment the second rotating limit device has just completed, and is exactly next to repeat the whole work period recited above always.
The first rotating limit device that the second rotating limit device that embodiment bis-provides provides compared to embodiment mono-, the time that completes the single cycle is longer, if need the cycle longer, can realize by the quantity that increases collision block.
The angular dimension that the first collision block of rotating limit device of the present invention rotates in half period also can be controlled, and only need adjust the width of the limited block of pedestal.If the limited block of pedestal is wider, in the first collision block half period, the angle of rotation is less; If the limited block of pedestal is narrower, in the first collision block half period, the angle of rotation is larger.
Each driving parts of rotating limit device of the present invention all turns round in horizontal plane.Even the direction of motion that the effect that the parts that move in horizontal extent are subject to other external force can modifier yet; compared to 90 ° of traditional shift fork stop means; the present invention has operation to stablize, saves space-efficient advantage, and equipment has been played to protective effect.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skill in the art make technical scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention book.
Claims (7)
1. a rotating limit device, comprising: pedestal, collision block, rotary body, stationary shaft;
Described pedestal comprises base plate, limited block, annulus projection; Described limited block is arranged at plate upper surface; Described annulus projection is arranged at limited block upper surface; The endoporus of described annulus projection is pilot hole;
Described collision block comprises an annulus, and the internal diameter of annulus and the annulus of pedestal projection external diameter adapts, and the outer wall of described annulus is also provided with a projection; Described collision block quantity is n, and wherein n is more than or equal to 1, and described first collision block is enclosed within by annulus in the annulus projection of pedestal; The lower surface of described first collision block projection is between the lower surface and upper surface of limited block; Described second, the 3rd until n collision block coaxially arrange with first collision block successively from bottom to top, wherein and the lower surface of second collision block projection between the upper surface of the 1st collision block projection and the upper surface of pedestal limited block, the lower surface of n collision block projection is between the upper surface of n-1 collision block projection and the upper surface of n-2 collision block projection;
Described rotary body is provided with a through hole, the dead in line of the axis of described through hole and pedestal annulus projection; The lower surface of described rotary body is also provided with boss; When n equals for the moment, the lower surface of described boss is between the upper surface of collision block projection and the upper surface of pedestal limited block; When n is greater than for the moment, the lower surface of described boss is between the upper surface of described n collision block projection and the upper surface of n-1 collision block projection;
Described stationary shaft is from top to bottom successively through the through hole of rotary body, the annulus of collision block, the pilot hole of pedestal, and by relatively fixing the position of rotary body, collision block, pedestal in the vertical direction, wherein rotary body, each collision block can rotate around the axis of stationary shaft respectively.
2. rotating limit device according to claim 1, is characterized in that: the boss of described rotary body has a breach, and described breach is stuck in the edge of n collision block annulus.
3. rotating limit device according to claim 1, is characterized in that: the both sides of described rotary body boss are provided with reinforcement.
4. rotating limit device according to claim 1, is characterized in that: described stationary shaft is fixedly connected with rotary body, and described stationary shaft and pilot hole clearance fit form revolute pair.
5. rotating limit device according to claim 4, is characterized in that: the through hole xsect of described rotary body is many prismatics, and the upper end xsect of described stationary shaft is identical with the through hole xsect of rotary body, and the lower end xsect of described stationary shaft is circular.
6. rotating limit device according to claim 5, is characterized in that: the through hole xsect of described rotary body is the closed-loop of regular polygon or major arc and string composition.
7. rotating limit device according to claim 4, is characterized in that: the top of described rotary body is also provided with groove, and the top of described stationary shaft is provided with flanged plate, and the shape of described flanged plate is identical with groove shapes, and described flanged plate is embedded in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239254.9A CN104076862B (en) | 2014-05-30 | 2014-05-30 | Rotating limit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239254.9A CN104076862B (en) | 2014-05-30 | 2014-05-30 | Rotating limit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104076862A true CN104076862A (en) | 2014-10-01 |
| CN104076862B CN104076862B (en) | 2015-09-23 |
Family
ID=51598182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410239254.9A Active CN104076862B (en) | 2014-05-30 | 2014-05-30 | Rotating limit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104076862B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113809422A (en) * | 2021-09-17 | 2021-12-17 | 厦门爱维达特种电源科技有限公司 | Storage battery monitoring device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001135504A (en) * | 1999-11-02 | 2001-05-18 | Sanwa Denshi Kiki Kk | Volume fixing mechanism |
| CN202600555U (en) * | 2012-06-11 | 2012-12-12 | 常熟英那金属制品有限公司 | Rotary limit device |
| CN202838083U (en) * | 2012-08-07 | 2013-03-27 | 海能达通信股份有限公司 | Knob device and interphone |
-
2014
- 2014-05-30 CN CN201410239254.9A patent/CN104076862B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001135504A (en) * | 1999-11-02 | 2001-05-18 | Sanwa Denshi Kiki Kk | Volume fixing mechanism |
| CN202600555U (en) * | 2012-06-11 | 2012-12-12 | 常熟英那金属制品有限公司 | Rotary limit device |
| CN202838083U (en) * | 2012-08-07 | 2013-03-27 | 海能达通信股份有限公司 | Knob device and interphone |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113809422A (en) * | 2021-09-17 | 2021-12-17 | 厦门爱维达特种电源科技有限公司 | Storage battery monitoring device |
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| Publication number | Publication date |
|---|---|
| CN104076862B (en) | 2015-09-23 |
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