CN221075029U - Locking force symmetry and overload protection coupling's locking structure - Google Patents
Locking force symmetry and overload protection coupling's locking structure Download PDFInfo
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- CN221075029U CN221075029U CN202323208735.7U CN202323208735U CN221075029U CN 221075029 U CN221075029 U CN 221075029U CN 202323208735 U CN202323208735 U CN 202323208735U CN 221075029 U CN221075029 U CN 221075029U
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- coupler
- overload protection
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- 238000010168 coupling process Methods 0.000 title claims abstract description 77
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 77
- 230000008878 coupling Effects 0.000 title claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a locking force symmetrical and overload protection coupling locking structure, which relates to the technical field of couplings and comprises a first half coupling and a second half coupling, wherein the first half coupling and the second half coupling are symmetrically arranged, a driving shaft sleeve is arranged at the end part of the first half coupling far away from the second half coupling, a driving shaft is connected in the driving shaft sleeve, a driven shaft sleeve is arranged at the end part of the second half coupling far away from the first half coupling, a driven shaft is connected in the driven shaft sleeve, an overload protection mechanism is arranged between the first half coupling and the second half coupling, a connecting sleeve is arranged outside the first half coupling and the second half coupling, a locking mechanism is arranged outside the driving shaft sleeve and the driven shaft sleeve, and the driving shaft and the driven shaft are prevented from being separated from the coupling by arranging the locking mechanism, so that the locking degree of the coupling can be adjusted from the outside of the coupling.
Description
Technical Field
The utility model relates to the technical field of couplings, in particular to a locking structure of a coupling with symmetrical locking force and overload protection.
Background
The coupling means a device for connecting two shafts or the shafts and a rotating member to rotate together in the process of transmitting motion and power, and is sometimes used as a safety device for preventing the connected parts from bearing excessive load, playing a role of overload protection, limiting the torque transmitted by a transmission system in a slipping mode when the required torque exceeds a set value due to overload or mechanical failure, and automatically recovering the coupling after the overload condition disappears, thus preventing mechanical damage, wherein the first half coupling and the second half coupling keep a linkage state and continue to work when the equipment is overloaded, the equipment damage is caused, the use safety of the coupling is affected, or the locking member is easy to loose due to insufficient locking force or asymmetric locking force when the equipment is used because of asymmetric structure.
Based on this, provide a locking force symmetry and overload protection shaft coupling's locking structure now, can eliminate the drawback that locking structure exists of current shaft coupling.
Disclosure of utility model
The utility model aims to provide a locking structure of a coupler with symmetrical locking force and overload protection so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a locking force symmetry and overload protection shaft coupling's locking structure, includes first half shaft coupling and second half shaft coupling, first half shaft coupling and second half shaft coupling symmetry set up, the tip that second half shaft coupling was kept away from to first half shaft coupling is equipped with the initiative axle sleeve, driving axle sleeve internal connection has the driving shaft, the tip that first half shaft coupling was kept away from to second half shaft coupling is equipped with driven axle sleeve, driven axle sleeve internal connection has the driven shaft, be provided with overload protection mechanism between first half shaft coupling and the second half shaft coupling, first half shaft coupling and second half shaft coupling outside are provided with connecting sleeve, initiative axle sleeve and driven axle sleeve outside are provided with locking mechanism.
Based on the technical scheme, the utility model also provides the following optional technical schemes:
In one alternative: the end part of the driving shaft sleeve and the surface of the driving shaft are provided with key grooves, a key is arranged between the key grooves of the driving shaft sleeve and the key grooves of the driving shaft, and the driven shaft sleeve and the driven shaft are respectively identical to the driving shaft sleeve and the driving shaft in structure.
In one alternative: the driving shaft sleeve is provided with a screw hole, a first fastening bolt is connected in the screw hole in a threaded manner, the end part of the first fastening bolt abuts against the outer wall of the driving shaft, and the driven shaft sleeve and the driven shaft are respectively identical in structure with the driving shaft sleeve and the driving shaft.
In one alternative: the overload protection mechanism comprises a spherical block, the spherical block is slidably connected in a placing groove, the placing groove is arranged on one side of the first half coupler, which is opposite to the second half coupler, a spring is arranged between the spherical block and the placing groove in a pressing mode, a spherical groove is formed in one side of the second half coupler, which is opposite to the first half coupler, and the spherical groove corresponds to the placing groove in position.
In one alternative: the depth of the spherical groove is smaller than the radius of the spherical block.
In one alternative: the inner wall of the connecting sleeve is fixedly connected with the outer side of the first half coupling, the second half coupling is slidably arranged in the connecting sleeve, the bottom end of the connecting sleeve extends out of the lower end of the second half coupling, and a fastening assembly is arranged at the bottom of the connecting sleeve.
In one alternative: the fastening assembly comprises a second fastening bolt, the second fastening bolt is in threaded connection with the bottom end of the connecting sleeve, one end, far away from the bolt head, of the second fastening bolt is provided with a conical block, and the conical block is in contact with the outer side of the end part of the driven shaft sleeve.
In one alternative: the locking mechanism comprises an arc-shaped plate, the arc-shaped plate is two-half symmetrical, the inner wall of the arc-shaped plate is attached to the outer sides of the driving shaft sleeve and the driven shaft sleeve, one end opposite surfaces of the arc-shaped plate are connected through hinges in a rotating mode, fixing blocks are respectively arranged on the other end opposite surfaces of the arc-shaped plate, third fastening bolts penetrate through the middle of the fixing blocks, one ends of the third fastening bolts are connected with fastening nuts in a threaded mode, and grooves matched with the heads of the first fastening bolts are formed in the inner side of the arc-shaped plate.
Compared with the prior art, the utility model has the following beneficial effects:
1. According to the utility model, the anti-loosening mechanism is arranged to prevent the driving shaft and the driven shaft from being separated from the coupler.
2. According to the utility model, the locking degree of the coupler can be adjusted from the outside of the coupler by arranging the connecting sleeve and the fastening assembly.
Drawings
Fig. 1 is a schematic view of a coupling structure according to the present utility model.
Fig. 2 is a schematic diagram of the overall structure of the present utility model.
Fig. 3 is a schematic cross-sectional structure of the present utility model.
Fig. 4 is a schematic structural view of the connecting sleeve and the fastening assembly of the present utility model.
Fig. 5 is a schematic structural view of the locking mechanism of the present utility model.
Reference numerals annotate: 101 first half coupling, 102 second half coupling, 103 driving shaft, 104 driven shaft, 201 driving shaft sleeve, 202 driven shaft sleeve, 301 screw hole, 302 first fastening bolt, 303 key groove, 304 key, 401 connecting sleeve, 402 second fastening bolt, 403 conical block, 501 placing groove, 502 spring, 503 spherical block, 504 spherical groove, 601 arc plate, 602 hinge, 603 fixed block, 604 third fastening bolt, 605 fastening nut, 606 groove.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
In one embodiment, as shown in fig. 1-3, a locking structure of a locking force symmetrical and overload protection coupler comprises a first half coupler 101 and a second half coupler 102, wherein the first half coupler 101 and the second half coupler 102 are symmetrically arranged, a driving shaft sleeve 201 is arranged at the end part of the first half coupler 101 far away from the second half coupler 102, a driving shaft 103 is connected in the driving shaft sleeve 201, the driving shaft 103 drives the coupler to synchronously rotate, a driven shaft sleeve 202 is arranged at the end part of the second half coupler 102 far away from the first half coupler 101, a driven shaft 103 is connected in the driven shaft sleeve 202, an overload protection mechanism is arranged between the first half coupler 101 and the second half coupler 102 and plays a role of overload protection, when required torque exceeds a set value due to overload or mechanical failure, the first half coupler 101 is separated from the second half coupler 102, a connecting sleeve 401 is arranged at the outer side of the first half coupler 101 and the second half coupler 102, the driven shaft sleeve 103 is connected from the outer side, and the driven shaft sleeve 202 is prevented from being separated from the outer side of the driven shaft sleeve 103, and the driven shaft sleeve 104 is arranged at the two ends of the driven shaft sleeve 102.
In one embodiment, as shown in fig. 1, the end of the driving shaft sleeve 201 and the surface of the driving shaft 103 are provided with key grooves 303, a key 304 is provided between the key grooves 303 of the driving shaft sleeve 201 and the key grooves 303 of the driving shaft 103, and the structures on the driven shaft sleeve 202 and the driven shaft 104 are respectively identical to those of the driving shaft sleeve 201 and the driving shaft 103, so that the driving shaft 103 and the driven shaft 104 are prevented from rotating relative to the coupling.
In one embodiment, as shown in fig. 1, a screw hole 301 is provided on the driving shaft sleeve 201, a first fastening bolt 302 is connected to the screw hole 301 in an internal thread manner, an end portion of the first fastening bolt 302 abuts against an outer wall of the driving shaft 103, structures on the driven shaft sleeve 202 and the driven shaft 104 are the same as those of the driving shaft sleeve 201 and the driving shaft 103, the driven shaft 104 and the coupling are locked in a radial direction, so that stability of connection between the driving shaft 103, the driven shaft 104 and the coupling is improved.
In one embodiment, as shown in fig. 3, the overload protection mechanism includes a ball block 503, the ball block 503 is slidably connected in a placing groove 501, the placing groove 501 is disposed on one side of the first half-coupling 101 opposite to the second half-coupling 102, a spring 502 is pressed between the ball block 503 and the placing groove 501, a ball groove 504 is disposed on one side of the second half-coupling 102 opposite to the first half-coupling 101, the ball groove 504 corresponds to the placing groove 501, when the coupling is not overloaded, under the limiting action of the ball block 503, the first half-coupling 101 and the second half-coupling 102 synchronously rotate to realize transmission, when the coupling is overloaded, the ball block 503 presses the spring 502 under the action of a rotating force, so that the ball block 503 is disengaged from the ball groove 504, the limiting of the first half-coupling 101 and the second half-coupling 102 is cancelled, the driven shaft 104 is protected, the equipment is prevented from being damaged, and overload protection is realized.
In one embodiment, as shown in fig. 3, the depth of the spherical groove 504 is smaller than the radius of the spherical block 503, so as to avoid that the spherical block 503 protrudes into the spherical groove 504 too much to be disengaged when the rotational force is too large.
In one embodiment, as shown in fig. 2 and fig. 4, the inner wall of the connecting sleeve 401 is fixedly connected with the outer side of the first half coupler 101, the second half coupler 102 is slidably arranged in the connecting sleeve 401, the bottom end of the connecting sleeve 401 extends out of the lower end of the second half coupler 102, a fastening component is arranged at the bottom of the connecting sleeve 401, the relative arrangement of the first half coupler 101 and the second half coupler 102 is kept, the second half coupler 102 is prevented from being separated from the connecting sleeve 401, meanwhile, when the couplers are overloaded, the first half coupler 101 limits torque force transmitted by a transmission system in an idle mode, and the first half coupler 101 and the second half coupler 102 can restore a connection relationship in the connecting sleeve 401 after overload condition disappears.
In one embodiment, as shown in fig. 4, the fastening assembly includes a second fastening bolt 402, the second fastening bolt 402 is in threaded connection with the bottom end of the connecting sleeve 401, one end of the second fastening bolt 402 away from the bolt head is provided with a conical block 403, the conical block 403 is in contact with the outer side of the end of the driven shaft sleeve 202, and by adjusting the screwing degree of the second fastening bolt 402 into the connecting sleeve 401, the extrusion degree of the conical block 403 and the driven shaft sleeve 202 can be adjusted, so that the adjustment of the locking degree of the coupling is realized.
In one embodiment, as shown in fig. 2 and 5, the locking mechanism comprises an arc 601, the arc 601 is two halves symmetrical, the inner wall of the arc 601 is attached to the outer sides of the driving shaft sleeve 201 and the driven shaft sleeve 202, one opposite surface of one end of the arc 601 is rotationally connected through a hinge 602, a fixing block 603 is respectively arranged on the opposite surface of the other end of the arc 601, a third fastening bolt 604 penetrates through the middle of the fixing block 603, one end of the third fastening bolt 604 is in threaded connection with a fastening nut 605, a groove 606 matched with the head of the first fastening bolt 302 is formed in the inner side of the arc 601, the groove 606 on the inner side of the arc 601 is aligned with the head of the first fastening bolt 302, and the first fastening bolt 302 is prevented from loosening to cause the driving shaft 103 and the driven shaft 104 to be separated from the coupling through the third fastening bolt 604.
The above embodiment discloses a locking force symmetry and overload protection shaft coupling's locking structure, during the use, aim at first fastening bolt 302 head through the inboard recess 606 of arc 601, through third fastening bolt 604 chucking arc 601, prevent that first fastening bolt 302 is not hard up to lead to driving shaft 103 and driven shaft 104 to break away from the shaft coupling, through the degree of adjusting second fastening bolt 402 precession in the connecting sleeve 401, can adjust the extrusion degree of toper piece 403 and driven shaft sleeve 202, realize the regulation of shaft coupling locking degree, avoid the shaft coupling in-process to take place not hard up, the fastening nature of shaft coupling has been improved.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (8)
1. Locking force symmetry and overload protection shaft coupling's locking structure, including first half shaft coupling (101) and second half shaft coupling (102), first half shaft coupling (101) and second half shaft coupling (102) symmetry set up, the tip that second half shaft coupling (102) was kept away from to first half shaft coupling (101) is equipped with initiative axle sleeve (201), initiative axle sleeve (201) internal connection has driving shaft (103), the tip that first half shaft coupling (101) was kept away from to second half shaft coupling (102) is equipped with driven axle sleeve (202), be connected with driven axle (104) in driven axle sleeve (202), its characterized in that: overload protection mechanisms are arranged between the first half coupler (101) and the second half coupler (102), connecting sleeves (401) are arranged on the outer sides of the first half coupler (101) and the second half coupler (102), and anti-loosening mechanisms are arranged on the outer sides of the driving shaft sleeve (201) and the driven shaft sleeve (202).
2. The locking structure of the symmetrical locking force and overload protection coupler according to claim 1, wherein key grooves (303) are formed in the end portion of the driving shaft sleeve (201) and the surface of the driving shaft (103), a key (304) is arranged between the key grooves (303) of the driving shaft sleeve (201) and the key grooves (303) of the driving shaft (103), and the structures on the driven shaft sleeve (202) and the driven shaft (104) are identical to those of the driving shaft sleeve (201) and the driving shaft (103) respectively.
3. The locking structure of the symmetrical locking force and overload protection coupler according to claim 1, wherein the driving shaft sleeve (201) is provided with a screw hole (301), a first fastening bolt (302) is connected in the screw hole (301) in a threaded manner, the end part of the first fastening bolt (302) abuts against the outer wall of the driving shaft (103), and the driven shaft sleeve (202) and the driven shaft (104) are respectively identical in structure with the driving shaft sleeve (201) and the driving shaft (103).
4. The locking structure of the symmetrical locking force and overload protection coupler according to claim 1, wherein the overload protection mechanism comprises a spherical block (503), the spherical block (503) is slidably connected in a placing groove (501), the placing groove (501) is arranged on one side of the first half coupler (101) opposite to the second half coupler (102), a spring (502) is pressed between the spherical block (503) and the placing groove (501), a spherical groove (504) is arranged on one side of the second half coupler (102) opposite to the first half coupler (101), and the spherical groove (504) corresponds to the placing groove (501).
5. The locking structure of a symmetrical lock force and overload protection coupling as claimed in claim 4, wherein the depth of the spherical groove (504) is smaller than the radius of the spherical block (503).
6. The locking structure of the symmetrical locking force and overload protection coupler according to claim 1, wherein the inner wall of the connecting sleeve (401) is fixedly connected with the outer side of the first half coupler (101), the second half coupler (102) is slidably arranged in the connecting sleeve (401), the bottom end of the connecting sleeve (401) extends out of the lower end of the second half coupler (102), and a fastening assembly is arranged at the bottom of the connecting sleeve (401).
7. The locking structure of the symmetrical locking force and overload protection coupler according to claim 6, wherein the fastening assembly comprises a second fastening bolt (402), the second fastening bolt (402) is in threaded connection with the bottom end of the connecting sleeve (401), one end, far away from the bolt head, of the second fastening bolt (402) is provided with a conical block (403), and the conical block (403) is in contact with the outer side of the end of the driven shaft sleeve (202).
8. The locking structure of the locking force symmetrical and overload protection coupler according to claim 1, wherein the locking mechanism comprises an arc plate (601), the arc plate (601) is in two half symmetrical shapes, the inner wall of the arc plate (601) is attached to the outer sides of a driving shaft sleeve (201) and a driven shaft sleeve (202), one end opposite surface of the arc plate (601) is rotationally connected through a hinge (602), fixing blocks (603) are respectively arranged on the other end opposite surface of the arc plate (601), a third fastening bolt (604) penetrates through the middle of the fixing blocks (603), one end of the third fastening bolt (604) is in threaded connection with a fastening nut (605), and a groove (606) matched with the head of the first fastening bolt (302) is formed in the inner side of the arc plate (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323208735.7U CN221075029U (en) | 2023-11-28 | 2023-11-28 | Locking force symmetry and overload protection coupling's locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323208735.7U CN221075029U (en) | 2023-11-28 | 2023-11-28 | Locking force symmetry and overload protection coupling's locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221075029U true CN221075029U (en) | 2024-06-04 |
Family
ID=91256612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323208735.7U Active CN221075029U (en) | 2023-11-28 | 2023-11-28 | Locking force symmetry and overload protection coupling's locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221075029U (en) |
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2023
- 2023-11-28 CN CN202323208735.7U patent/CN221075029U/en active Active
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