CN111747285A - Double-helix automatic clutch for hoisting - Google Patents
Double-helix automatic clutch for hoisting Download PDFInfo
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- CN111747285A CN111747285A CN202010642610.7A CN202010642610A CN111747285A CN 111747285 A CN111747285 A CN 111747285A CN 202010642610 A CN202010642610 A CN 202010642610A CN 111747285 A CN111747285 A CN 111747285A
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- spiral groove
- torsion spring
- lifting
- clutch
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The application discloses double helix automatic clutch for hoist and mount includes: the clutch body, the guide cam, the first linking piece, the second connecting piece, the gasket, the torsion spring, the friction reducing pad, the connecting transition body and the lifting rod. When in use, the coupling body, the guide cam, the torsion spring, the friction reducing pad and the connecting transition body are required to be loosely connected into a whole by utilizing the bolt, the gasket and the nut and fixedly connected on a hung object by the connecting transition body. The lifting lug of the lifting rod is in contact with the groove surface in the spiral groove of the clutch body by taking the linear movement of the lifting rod as a power and motion control parameter, and the clutch body rotates around the shaft by taking the action of the lifting lug of the lifting rod and the spiral groove during the vertical linear movement. The hanger rod can be automatically connected and separated only by means of the linear movement of the hanger rod and the spiral groove of the clutch body and the torsion spring, and the structure is simple and the cost is low.
Description
Technical Field
The application relates to the technical field of hoisting, in particular to a double-helix automatic clutch for hoisting.
Background
At the present stage, the lifting of vehicles in the stereo garage, the lifting of traditional mine, dock materials and containers, the station transfer of automatic production line articles, and the production and living places of cranes and other articles needing to be lifted all need to lift, convey and release the articles.
Traditional lifting connection device, traditional lifting connection need accomplish couple and unhook with the help of the manual work if the hoist adopts the lifting hook, and is inefficient, the human cost is high, and is plucking the in-process of hanging, because of personnel can't in time leave the operating position, easily leads to personnel to receive the injury.
Disclosure of Invention
The application provides a double-helix automatic clutch for hoisting, which aims to solve the technical problem that the prior art needs to manually pick up and hang a lifting hook.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
the embodiment of the application discloses a double helix automatic clutch for hoist and mount includes: the lifting rod comprises lifting lugs symmetrically arranged on two sides of the rod body;
the clutch body comprises a hollow part and a torsion spring assembling part, and the inner wall of the torsion spring assembling part is provided with a first torsion spring jack; the inner wall of the hollow part is cylindrical, two spiral grooves are symmetrically formed in the inner wall of the hollow part along the axial direction, and the lifting lug can slide along the spiral grooves;
the spiral groove comprises a first spiral groove, a second spiral groove, a third spiral groove and a fourth spiral groove which are sequentially communicated end to end; the first spiral groove and the fourth spiral groove are communicated with the upper end face of the clutch body; the first spiral groove, the third spiral groove and the fourth spiral groove are all obliquely arranged with the end surface of the clutch body, and the second spiral groove is perpendicular to the central shaft of the clutch body or obliquely arranged towards the upper end surface of the clutch body;
the connecting transition body comprises a connecting disc and a transition rod, and a second torsion spring jack is arranged on the inner wall of the transition rod;
the two ends of the torsion spring are respectively provided with a torsion spring fixing claw, one torsion spring fixing claw is inserted into the first torsion spring insertion hole, and the other torsion spring fixing claw is inserted into the second torsion spring insertion hole;
the bolt sequentially penetrates through the connection transition body, the torsion spring and the bottom surface of the hollow part and is connected with the nut, and the connection transition body is loosely connected with the separation body.
Optionally, the double-helix automatic clutch further comprises a guide cam, the guide cam is located at a connection position of the third spiral groove and the fourth spiral groove, and the guide cam is hinged to the inner wall of the clutch body and used for limiting the movement direction of the lifting lug in the spiral groove.
Optionally, the lifting rod further comprises a connecting disc, the connecting disc and the rod body are integrally formed, the connecting disc is provided with a plurality of connecting holes, and the connecting disc is rigidly connected with the lifting device.
Optionally, the double-helix automatic clutch further comprises an anti-friction gasket, and the anti-friction gasket is located between the clutch body and the connecting transition body.
Optionally, the connection transition body includes an anti-wear gasket mounting surface for mounting the anti-wear gasket.
Optionally, the bolt includes: the bolt comprises a bolt head and a screw fixedly connected with the bolt head, wherein a gasket shoulder surface is arranged at the end part of the screw and used for bearing a gasket.
Optionally, an interface between the first spiral groove and the upper end surface of the clutch body coincides with an interface between the fourth spiral groove and the upper end surface of the clutch body.
Optionally, a lifting point is arranged at a joint of the second spiral groove and the third spiral groove, and the lifting point is matched with the lifting lug.
Compared with the prior art, the beneficial effect of this application is:
the application provides a double helix automatic clutch for hoist and mount, the during operation, the lug that plays the jib by the up end entering of clutch body in the first helicla flute, it continues down perpendicularly to play the jib to follow clutch body axial inserts as power, first helicla flute with clutch body's terminal surface slope sets up, and first helicla flute has the displacement vector that is on a parallel with clutch body axial, and the terminal surface under first helicla flute spiral forces clutch body is rotatory for the torsional spring is turned round tightly. Then, the lifting rod moves to the second spiral groove, and at the moment, the lifting rod does not vertically move downwards any more. Because of the second helicla flute sets up to the up end of clutch with the center pin of clutch is perpendicular or slope, the torsional spring loses the balance, under the torsional spring reverse torque effect, the clutch resets under the torsional spring effect, and the lug moves along the second helicla flute. After the hoisting is completed, when the hoisting rod needs to be disengaged, the hoisting rod is continuously inserted along the axial direction of the clutch body as power, and the lifting lug enters the third spiral groove to force the clutch body to rotate, so that the torsion spring is twisted tightly. After the lifting lug moves to the joint of the third spiral groove and the fourth spiral groove, the lifting rod moves upwards in the reverse direction, the fourth spiral groove is communicated with the upper end face of the clutch body, and the lifting lug is withdrawn from the fourth spiral groove to complete the separation of the lifting rod and the clutch body. In the whole process, the hanger rod is automatically connected and separated by only depending on the linear movement of the hanger rod and with the help of the spiral groove and the torsion spring of the clutch body.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic assembled structural view of a double helix automatic clutch according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating a disengagement cross-sectional structure of a double-helix automatic clutch according to an embodiment of the present disclosure;
FIG. 3 is a perspective view of a clutch body and a connecting transition body of a double-helix automatic clutch according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of a boom construction provided in an embodiment of the present application;
FIG. 5 is a perspective view of a breakaway body provided in an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a connection transition body according to an embodiment of the present disclosure;
FIG. 7 is a schematic structural diagram of a torsion spring according to an embodiment of the present disclosure;
FIG. 8 is a schematic view of a bolt structure provided in an embodiment of the present application;
the anti-friction device comprises a lifting rod 1, a disengaging body 2, a connecting transition body 3, an anti-friction gasket 4, a torsion spring 5, a first connecting piece 6, a second connecting piece 7, a connecting disc 11, a rod body 12, a lifting lug 13, a hollow part 21, a torsion spring assembly part 22, a spiral groove 23, a lifting point 24, a transition rod 31, a second torsion spring jack 311, an anti-friction gasket assembly surface 32, a connecting disc 33, a torsion spring fixing claw 51, a bolt head 61, a screw rod 62 and a gasket shoulder surface 63.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, 2 and 3, the present embodiment provides a double-helix automatic clutch for hoisting, comprising: as shown in fig. 4, the lifting rod 1 includes a rod 12 and a lifting lug 13 disposed at one end of the rod.
In order to ensure the firmness of the lifting rod 1 and ensure that the lifting rod 1 can bear the weight of the lifted object, the two sides of the rod body 12 are fixedly provided with cross beams, and the two ends of each cross beam are provided with lifting lugs 13. The specific structure of the beam and the lifting lug 13 is a cylindrical structure.
The clutch body 2, as shown in fig. 5, the clutch body 2 includes a hollow portion 21 and a torsion spring assembling portion 22, and the inner wall of the torsion spring assembling portion 22 is provided with a first torsion spring insertion hole for inserting the torsion spring 5. The inner wall of the hollow part 21 is cylindrical, two spiral grooves 23 are symmetrically arranged on the inner wall of the hollow part 21 along the axial direction, and the lifting lug 13 can slide along the spiral grooves 23. The spiral groove 23 includes a first spiral groove, a second spiral groove, a third spiral groove, and a fourth spiral groove, which are sequentially communicated. The first spiral groove and the fourth spiral groove are communicated with the upper end face of the clutch body 2; the second spiral groove is provided perpendicular to or inclined with respect to the central axis of the separating body 2 toward the upper end surface of the separating body 2. As shown, the AB section is the first spiral groove, the BC section is the second spiral groove, the CD section is the third spiral groove, and the DA section is the fourth spiral groove. In the present embodiment, the end surface of the clutch body 2 near the boom 1 is defined as the upper end surface of the clutch body 2.
Specifically, the first spiral groove communicates with the upper end surface of the clutch body 2, so that the lifting lug 13 enters the first spiral groove along the port. The first helical groove has simultaneously a vector extending parallel to and perpendicular to the axial direction of the clutch body 2 and spirals towards the lower end face. The tail part of the first spiral groove is communicated with the head part of the second spiral groove. In this embodiment, the second spiral groove is approximately perpendicular to the circumferential groove and is axially disposed to the clutch body 2. So that after the lifting lug 13 enters the second spiral groove, the action between the lifting lug 13 and the spiral groove 23 disappears, the torsion spring 5 loses balance, the clutch body 2 resets under the action of the torsion spring 5 under the action of reverse torque of the torsion spring 5, and the lifting lug 13 moves along the second spiral groove and slides from the point B to the point C. To the tail of the second helical flute, point C. The tail part of the second spiral groove is communicated with the head part of the third spiral groove, the third spiral groove simultaneously has vectors which are parallel to and vertical to the axial extension of the clutch body 2, and the third spiral groove is downward due to spiral. The tail part of the third spiral groove is communicated with the head part of the fourth spiral groove, the fourth spiral groove simultaneously has vectors which are parallel to and vertical to the axial extension of the clutch body 2, and the fourth spiral groove is upwards screwed. The fourth helical groove communicates with the upper end face of the clutch body 2 so that the lug 13 exits along the port.
The interface between the first spiral groove and the upper end surface of the clutch body 2 may coincide with the interface between the fourth spiral groove and the upper end surface of the clutch body 2. The lifting lug and the clutch body 2 are convenient to position, and the operation steps are simplified.
The connecting transition body 3, as shown in fig. 6, includes a connecting disc 33 and a transition rod 31, where the connecting disc 33 is fixedly connected to the suspended object through a through hole. The inner wall of the transition rod 31 is provided with a second torsion spring insertion hole 311.
As shown in fig. 7, two ends of the torsion spring 5 are provided with two torsion spring fixing claws 51, one of the torsion spring fixing claws 51 is inserted into the first torsion spring insertion hole, and the other torsion spring fixing claw 51 is inserted into the second torsion spring insertion hole 311, so as to limit the torsion spring 5 from moving in the axial direction.
In order to avoid the horizontal deviation between the connection transition body 3 and the clutch body 2 and avoid the action of shearing stress on the bolt, the clutch body 2 is provided with a transition assembly groove corresponding to the transition rod 31, so that the transition rod 31 of the connection transition body 3 is arranged in the clutch body 2. Meanwhile, the central axes of the clutch body 2, the connection transition body 3, the transition rod 31, and the first connecting member 6 coincide with each other.
The first connecting piece 6 sequentially penetrates through the connecting transition body 3, the torsion spring 5 and the bottom surface of the hollow part 21 and is connected with the second connecting piece 7. The second connecting piece 7 is positioned at the bottom of the hollow part 21 of the clutch body 2, and the clutch body 2 and the connecting transition body 3 are connected together through the first connecting piece 6. In order to ensure that the torsion spring 5 rotates, the torsion spring 5 drives the clutch body 2 to rotate relative to the connection transition body 3, and a gap exists between the clutch body 2 and the connection transition body 3. The distance between the coupling body 2 and the coupling transition body 3 after assembly is smaller than the distance between the bolt head 61 and the second coupling member.
Before initial hoisting, the axis of the clutch body 2 is in a plumb position, the axis of the lifting rod 1 and the axis of the clutch body 2 are superposed above the clutch body 2, and the two lifting lugs of the lifting rod 1 are positioned right above a first spiral notch access point, namely a point A.
When the combined tool works, the lifting lug of the lifting rod 1 enters the first spiral groove from the upper end face of the combined body 2, the lifting rod 1 continues to vertically move downwards, the lifting rod 1 is inserted into the combined body 2 along the axial direction of the combined body as power, the combined body 2 is forced to rotate, and the torsion spring 5 is tightly twisted. Then, the boom 1 moves to the second spiral groove, and at this time, the boom 1 does not vertically move downward any more. Because the second spiral groove is perpendicular to the central axis of the clutch body 2 or is obliquely arranged towards the upper end face of the clutch body 2, after the lifting lug enters the second spiral groove, the action between the lifting lug and the spiral groove disappears, the torsion spring 5 loses balance, under the action of reverse torque of the torsion spring 5, the lifting lug moves along the second spiral groove, and the clutch body 2 resets under the action of the torsion spring 5.
During hoisting, the lifting lug 13 is positioned at the junction of the second spiral groove and the third spiral groove, and the hoisting rod 1 can form upward tension on the clutch by means of the contact point of the lifting lug and the spiral groove, so that the safe hoisting of a heavy object on the clutch body is completed.
After the hoisting is finished, the hoisting rod 1 continues to vertically move downwards, the hoisting rod 1 is axially inserted along the clutch body 2 to serve as power, and under the action force of the torsion spring 5, the lifting lug 13 reaches the joint of the second spiral groove and the third spiral groove.
When the clutch body 2 is disengaged, the lifting rod 1 is continuously inserted along the axial direction of the clutch body 2 as power, the lifting lug 13 enters the third spiral groove, the clutch body 2 is forced to rotate, and the torsion spring 5 is twisted tightly. After the lifting lug 13 moves to the joint of the third spiral groove and the fourth spiral groove, the lifting rod 1 moves upwards in the reverse direction, and the lifting lug 13 is withdrawn from the fourth spiral groove because the fourth spiral groove is communicated with the upper end surface of the clutch body 2, so that the lifting rod 1 and the clutch body 2 are separated. After the lifting rod 1 is withdrawn along the spiral groove, the clutch body 2 is reset by the torsion spring 5, so that the double-spiral clutch body 2 is restored to the original position.
In the whole process, the lifting lug which plays a role of the lifting lug 1 is in contact with the groove surface in the spiral groove 23 of the clutch body 2 by taking the lifting lug 1 to linearly move as a power and motion control parameter, and the clutch body 2 rotates around the shaft by taking the lifting lug which plays a role of the lifting lug 1 and the spiral groove surface during vertical linear motion. The hanger rod 1 is automatically connected and separated only by means of the linear movement of the hanger rod 1 and by means of the spiral groove and the torsion spring 5.
After the lifting lug 13 moves to the joint of the third spiral groove and the fourth spiral groove, when the lifting rod 1 moves upwards in the reverse direction, in order to prevent the lifting lug from returning along the third spiral groove, the double-helix automatic clutch further comprises a guide cam, the guide cam is positioned at the joint of the third spiral groove and the fourth spiral groove, and the guide cam is hinged on the inner wall of the clutch body 2 and used for limiting the moving direction of the lifting lug in the spiral groove. When the lifting lug enters the joint of the third spiral groove and the fourth spiral groove, the guide cam rotates clockwise; when the lifting lug is separated from the contact with the guide cam, the guide cam rotates reversely under the action of the dead weight, so that the lifting lug cannot return along the third spiral groove.
The lifting rod 1 further comprises a connecting disc 11, the connecting disc 11 and the rod body 12 are integrally formed, the connecting disc 11 is provided with a plurality of connecting holes, and the connecting disc 11 is rigidly connected with a lifting device. The lifting device can be fixed with the connecting disc 11 in a rigid connection mode such as a bolt, so that the lifting rod 1 can vertically move in the clutch body 2.
The double-helix automatic clutch further comprises an antifriction gasket 4, wherein the antifriction gasket 4 is positioned between the clutch body 2 and the connecting transition body 3 and used for reducing the friction force between the clutch body 2 and the connecting transition body 3, so that the influence on the service life of the torsion spring 5 caused by the overlarge friction force between the clutch body 2 and the connecting transition body 3 is avoided, meanwhile, the contact surface between the clutch body 2 and the connecting transition body 3 can be effectively protected, and the abrasion is avoided. After the double-helix automatic clutch is used for a long time, the service life of the double-helix automatic clutch can be prolonged by replacing the antifriction gasket 4.
In order to facilitate the assembly of the antifriction shim 4 and reduce the contact area between the connecting transition body 3 and the separating body 2, the connecting transition body 3 comprises an antifriction shim assembly surface 32, and the antifriction shim assembly surface 32 is used for assembling the antifriction shim 4.
As shown in fig. 8, the first connecting member is a bolt, the second connecting member is a nut, and the bolt includes: the bolt head 61 and the screw rod 62 fixedly connected with the bolt head 61 are provided with a gasket shoulder surface 63 near the end of the screw rod 62, and the gasket shoulder surface 63 is used for bearing a gasket. To ensure a secure connection between the bolt and the nut, a washer may be provided at the washer shoulder surface 63.
The bottom surface of the connecting transition body 3 is provided with a bolt groove corresponding to the bolt head, so that the connecting transition body 3 is tightly connected with the bolt head. In order to avoid the torsion spring 5 from twisting to drive the connection transition body 3 to rotate, the bolt head 61 can be set to be a rectangular structure, and can also be set to be a triangle, a square or various polygons.
In order to enable the lifting rod 1 to be connected with the clutch more firmly in the lifting process, the lifting rod 1 and the clutch form self-locking, the lifting lug 13 is prevented from sliding in the spiral groove 23 in the lifting process, a lifting point 24 is arranged at the connection position of the second spiral groove and the third spiral groove, and the lifting point 24 is matched with the lifting lug 13.
In summary, the present application discloses a double-helix automatic clutch for hoisting, comprising: the clutch body, the guide cam, the bolt, the nut, the gasket, the torsion spring, the friction reducing pad, the connecting transition body and the lifting rod. When in use, the coupling body, the guide cam, the torsion spring, the friction reducing pad and the connecting transition body are required to be loosely connected into a whole by utilizing the bolt, the gasket and the nut and fixedly connected on a hung object by the connecting transition body. When the clutch device works, the lifting lug of the lifting rod enters the first spiral groove from the upper end face of the clutch body, the lifting rod continues to vertically move downwards, the lifting rod is inserted into the clutch body axially as power, the clutch body is forced to rotate, and the torsion spring is tightly twisted. Then, the lifting rod moves to the second spiral groove, and at the moment, the lifting rod does not vertically move downwards any more. Because of the perpendicular or to the up end slope setting of clutch of second helicla flute and clutch's center pin, the lug gets into the second helicla flute after, and the effect between lug and helicla flute disappears, and the torsional spring loses balance, and under the torsional spring reverse torque effect, the lug moves along the second helicla flute, and the clutch resets under the torsional spring effect. The lifting lug reaches the junction of the second spiral groove and the third spiral groove, and when the lifting lug is lifted, the lifting lug and a lifting point form a self-locking structure.
After the hoisting is finished, the hoisting rod is disengaged, the hoisting rod is driven to continue to be inserted along the axial direction of the clutch body, and the lifting lug enters the third spiral groove to force the clutch body to rotate, so that the torsion spring is twisted tightly. After the lifting lug moves to the joint of the third spiral groove and the fourth spiral groove, the lifting rod moves upwards in the reverse direction, the fourth spiral groove is communicated with the upper end face of the clutch body, and the lifting lug is withdrawn from the fourth spiral groove to complete the separation of the lifting rod and the clutch body. After the lifting rod is withdrawn along the spiral groove, the clutch body is reset by the torsion spring, so that the clutch body is restored to the original position.
In the whole process, the lifting lugs which play the lifting rods are in contact with the groove surfaces in the spiral grooves of the clutch body by taking the lifting rods to linearly move as power and motion control parameters, and the cylindrical double-spiral clutch body is made to rotate around the shaft by taking the lifting rods to linearly move with the spiral grooves during vertical linear motion. The lifting rod is automatically connected and separated by means of the spiral groove and the torsion spring of the clutch body only by means of the linear movement of the lifting rod, the structure is simple, the manufacturing cost is low, a complex hydraulic system or an electric control system is not needed, and the lifting device is suitable for the lifting of vehicles in a stereo garage, the production and living places of materials, container lifting and automatic production line goods station conveying, crane machinery and other objects needing to be lifted. The lifting lugs enter and separate along the spiral grooves when entering and separating from the clutch body, and the separation and the combination are smooth.
Since the above embodiments are all described by referring to and combining with other embodiments, the same portions are provided between different embodiments, and the same and similar portions between the various embodiments in this specification may be referred to each other. And will not be described in detail herein.
It is noted that, in this specification, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such circuit structure, article, or apparatus. Without further limitation, the presence of an element identified by the phrase "comprising an … …" does not exclude the presence of other like elements in a circuit structure, article or device comprising the element.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
The above-described embodiments of the present application do not limit the scope of the present application.
Claims (9)
1. A double-helix automatic clutch for hoisting is characterized by comprising:
the lifting rod (1) comprises a rod body (12) and a lifting lug (13) arranged at one end of the rod body (12);
the clutch body (2) comprises a hollow part (21) and a torsion spring assembling part (22), wherein a first torsion spring jack is arranged on the inner wall of the torsion spring assembling part (22); the inner wall of the hollow part (21) is cylindrical, two spiral grooves (23) are symmetrically formed in the inner wall of the hollow part (21) along the axial direction, and the lifting lug (13) can slide along the spiral grooves (23);
the spiral groove (23) comprises a first spiral groove, a second spiral groove, a third spiral groove and a fourth spiral groove which are sequentially communicated end to end; the first spiral groove and the fourth spiral groove are communicated with the upper end face of the clutch body (2); the first spiral groove, the third spiral groove and the fourth spiral groove are all obliquely arranged with the end surface of the clutch body (2), and the second spiral groove is perpendicular to the central shaft of the clutch body (2) or obliquely arranged towards the upper end surface of the clutch body (2);
the connecting transition body (3) comprises a connecting disc (33) and a transition rod (31), and a second torsion spring jack (311) is arranged on the inner wall of the transition rod (31);
two ends of the torsion spring (5) are respectively provided with a torsion spring fixing claw (51), one torsion spring fixing claw is inserted into the first torsion spring insertion hole, and the other torsion spring fixing claw is inserted into the second torsion spring insertion hole (311);
the first connecting piece (6) sequentially penetrates through the connecting transition body (3), the torsion spring (5) and the bottom surface of the hollow part (21) to be connected with the second connecting piece (7), and the connecting transition body (3) is loosely connected with the separation body (2).
2. The double-helix automatic clutch according to claim 1, characterized by further comprising a guide cam, wherein the guide cam is positioned at the connection position of the third spiral groove and the fourth spiral groove, and the guide cam is hinged on the inner wall of the clutch body (2) and used for limiting the movement direction of a lifting lug in the spiral groove.
3. The double-helix automatic clutch according to claim 1, wherein the lifting rod (1) further comprises a connecting disc (11), the connecting disc (11) is integrally formed with the rod body (12), the connecting disc (11) is provided with a plurality of connecting holes, and the connecting disc (11) is rigidly connected with a lifting device.
4. The double-helix automatic clutch according to claim 1, characterized by further comprising a friction-reducing shim (4), the friction-reducing shim (4) being located between the clutch body (2) and the connection transition body (3).
5. The double-helix automatic clutch according to claim 4, characterized in that the connecting transition body (3) comprises a wear-reducing shim mounting face (32), the wear-reducing shim mounting face (32) being intended for mounting the wear-reducing shim (4).
6. The double-helix automatic clutch according to claim 1, characterized in that the first connecting piece (6) is a bolt comprising: the bolt comprises a bolt head (61) and a screw rod (62) fixedly connected with the bolt head (61), wherein a gasket shoulder surface (63) is arranged at the end part close to the screw rod (62), and the gasket shoulder surface (63) is used for bearing a gasket.
7. The double-helix automatic clutch according to claim 6, characterized in that the bolt head (61) is of rectangular configuration.
8. The double-helix automatic clutch according to claim 1, characterized in that the interface of the first helical groove with the upper end face of the clutch body (2) coincides with the interface of the fourth helical groove with the upper end face of the clutch body (2).
9. The double-helix automatic clutch according to claim 1, characterized in that a lifting point (24) is arranged at the connection of the second spiral groove and the third spiral groove, and the lifting point (24) is matched with the lifting lug (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010642610.7A CN111747285B (en) | 2020-07-06 | 2020-07-06 | Double-helix automatic clutch for hoisting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010642610.7A CN111747285B (en) | 2020-07-06 | 2020-07-06 | Double-helix automatic clutch for hoisting |
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| CN111747285A true CN111747285A (en) | 2020-10-09 |
| CN111747285B CN111747285B (en) | 2022-04-01 |
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| CN202010642610.7A Active CN111747285B (en) | 2020-07-06 | 2020-07-06 | Double-helix automatic clutch for hoisting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651224A (en) * | 2021-10-20 | 2021-11-16 | 山东科技大学 | Full-mechanical lifting clutch device and lifting method thereof |
| CN114021295A (en) * | 2021-11-04 | 2022-02-08 | 长安大学 | Multi-mode carriageway fine setting method based on branch-and-bound method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113651224A (en) * | 2021-10-20 | 2021-11-16 | 山东科技大学 | Full-mechanical lifting clutch device and lifting method thereof |
| CN114021295A (en) * | 2021-11-04 | 2022-02-08 | 长安大学 | Multi-mode carriageway fine setting method based on branch-and-bound method |
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| CN111747285B (en) | 2022-04-01 |
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