CN219792308U - Winding engine holding clutch mechanism - Google Patents
Winding engine holding clutch mechanism Download PDFInfo
- Publication number
- CN219792308U CN219792308U CN202321085927.0U CN202321085927U CN219792308U CN 219792308 U CN219792308 U CN 219792308U CN 202321085927 U CN202321085927 U CN 202321085927U CN 219792308 U CN219792308 U CN 219792308U
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- Prior art keywords
- brake
- brake shoe
- driving disc
- driving
- shoe
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- 230000007246 mechanism Effects 0.000 title claims abstract description 50
- 238000004804 winding Methods 0.000 title abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000004044 response Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a winding engine holding type clutch mechanism which comprises a brake shoe, a driving disc and a driving mechanism, wherein a holding brake piece is arranged on the inner surface of the brake shoe, brake lugs are arranged at two ends of the brake shoe, one brake lug is hinged with the driving disc, the other brake lug is hinged with a gear, an inner gear ring is arranged in the driving disc, the gear is meshed with the inner gear ring, the driving mechanism drives the brake shoe to hold tightly and open, the forward rotation direction of the driving disc is opposite to the holding direction of the brake shoe, and the forward rotation direction of the driving disc is identical to the opening direction of the brake shoe. The brake pad has the advantages of high fit degree with the brake drum, increased friction area, balanced brake shoe stress, reduced abrasion of the brake pad, small holding tension, long service life, high safety, reliability and sensitivity, and can avoid fatigue fracture of the brake shoe.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a winch embracing type clutch mechanism.
Background
The existing winch embracing type clutch mechanism comprises a driving disc, brake shoes and a driving mechanism; the brake shoe is provided with a brake-holding sheet, the brake shoe wraps the brake drum, and the brake shoe is tightly held and opened by the driving mechanism. When the brake shoe holds the brake drum tightly, the power of the driving disc is transmitted to the brake drum, namely, the joint state. When the brake shoe opens, the brake shoe separates from the brake drum, and the power of the driving disc cannot be transmitted to the brake drum, namely, the separation state. The two ends of the brake shoe are respectively a fixed end and a movable end, and the driving mechanism drives the movable end to move so as to tightly hold and open the brake shoe. The brake shoe repeatedly and continuously hugs tightly and opens cyclic deformation, the laminating degree of the brake pad and the brake drum is poor, the hugging tension is large, the brake shoe stress is unbalanced, and the brake pad is severely worn. Under the repeated and continuous action of large tensile stress, the brake shoe has very serious fatigue fracture condition, short service life and frequent serious accidents. In addition, because the brake shoe deformation is large and the holding tension is large, the response time of the existing winch clutch mechanism in the process from the holding state to the opening state is long, and the sensitivity of the winch clutch mechanism is poor.
Disclosure of Invention
In view of the above, the utility model provides a winch clutch mechanism, which has the advantages of high fitting degree of a brake disc and a brake drum, increased friction area, balanced brake shoe stress, reduced abrasion of the brake disc, small brake shoe tightening and pulling force, long service life, high safety, reliability and sensitivity, and avoids fatigue fracture of the brake shoe.
On the one hand, the utility model provides a winch holding type clutch mechanism, which comprises a brake shoe, a driving disc and a driving mechanism, wherein a holding brake piece is arranged on the inner surface of the brake shoe, brake lugs are arranged at two ends of the brake shoe, one brake lug is hinged with the driving disc, the other brake lug is hinged with a gear, an inner gear ring is arranged in the driving disc, the gear is meshed with the inner gear ring, the driving mechanism drives the brake shoe to hold tightly and open, the forward rotation direction of the driving disc is opposite to the holding direction of the brake shoe, and the forward rotation direction of the driving disc is identical to the opening direction of the brake shoe.
In a further technical scheme, the driving mechanism comprises a clutch oil cylinder, a pull arm is connected to the gear, and two ends of the clutch oil cylinder are respectively hinged with the driving disc and the pull arm.
In a further technical scheme, a return spring is arranged in a rod cavity of the clutch oil cylinder, and the return spring enables a piston rod of the clutch oil cylinder to retract and drives a brake shoe to open.
In a further technical scheme, a connecting rod and a locking nut are arranged on a piston rod of the clutch oil cylinder, the connecting rod is in threaded connection with the piston rod, the locking nut locks the connecting rod, and the connecting rod is hinged with the pull arm.
In a further technical scheme, the brake shoe comprises two brake shoes and two driving mechanisms, wherein two support pin holes are formed in the driving disc, the two support pin holes are symmetrically arranged, and one brake lug of each brake shoe is connected with the support pin hole of the driving disc through a support pin; the central angle R1 of each brake shoe is smaller than 180 degrees; the central angle R1 of each brake shoe is the same, and the holding directions of the two brake shoes are the same.
In a further technical scheme, the brake shoe comprises three brake shoes and three driving mechanisms, wherein three support pin holes are formed in the driving disc and are symmetrically arranged; one brake lug of each brake shoe is connected with a supporting pin hole of the driving disc through a supporting pin; the central angle R1 of each brake shoe is smaller than 120 degrees; the central angle R1 of each brake shoe is the same, and the holding directions of the three brake shoes are the same.
In a further technical scheme, the inner gear ring is concentric with the driving disk.
Compared with the prior art, the winch embracing type clutch mechanism has the beneficial effects that:
1. the inner gear ring is arranged in the driving disc, the gear is meshed with the inner gear ring, the driving mechanism drives the brake shoe to be held tightly and opened, the movable end of the brake shoe moves along the inner gear ring, the moving track circle center of the movable end of the brake shoe is the circle center of the inner gear ring, the inner gear ring is concentric with the driving disc, namely, the moving track of the movable end of the brake shoe is concentric with the brake shoe, so that the holding brake piece is high in fit degree with the brake drum, the friction area is increased, the brake shoe is balanced in stress, abrasion of the holding brake piece is reduced, the holding tension is small, fatigue fracture of the brake shoe is avoided, the service life is long, and the safety, reliability and sensitivity are high.
2. Because the brake shoe comprises two brake shoes or three brake shoes or two brake shoes below, each brake shoe is furnished with a actuating mechanism, and every actuating mechanism drives every brake shoe and hugs tightly and open, and the central angle R1 of every brake shoe is little for it is high to embrace the piece of stopping and brake drum laminating degree, and friction area increases, and the brake shoe atress is balanced, reduces to embrace the wearing and tearing of piece of stopping, and it is little to hold tight tensile force, avoids brake shoe fatigue fracture, long service life, security and reliability and sensitivity are high.
3. The positive rotation direction of the driving disc refers to the rotation direction of the driving disc when a steel wire rope of a winch ascends, namely the rotation direction of the driving disc when a brake shoe is tightly held. As all the brake shoe holding directions are the same, the forward rotation direction of the driving disc is opposite to the brake shoe holding direction, so that the acting force of the brake shoe holding the brake drum is increased.
4. Because the gear is connected with the pull arm, the clutch oil cylinder drives the pull arm to enable the gear to roll on the internal gear ring. According to the technical scheme, a lever principle is utilized, and under the condition that the acting force of the clutch oil cylinder is the same, the longer the pull arm is, the longer the arm of force of the acting force of the clutch oil cylinder is, the greater the holding tension and the return tension of the brake shoe are. Under the condition of meeting the holding tension and the return tension, the smaller the acting force of the clutch oil cylinder is required, the smaller the return force of the return spring is required. The clutch mechanism has short response time and high safety, reliability and sensitivity.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of a clutch mechanism of a hoist according to a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of the active disc structure of FIG. 1;
FIG. 3 is a schematic view of the shoe and drive mechanism of FIG. 1;
FIG. 4 is a schematic view of a clutch mechanism of a hoist according to a second embodiment of the present utility model;
FIG. 5 is a schematic view of the active disc structure of FIG. 4;
FIG. 6 is a schematic view of the shoe and drive mechanism of FIG. 4.
Description of the embodiments
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The forward rotation direction of the driving disc 1 refers to the rotation direction of the driving disc 1 when a steel wire rope of a winch ascends, namely, the rotation direction of the driving disc 1 when the brake shoes 2 are tightly held.
The central angle R1 of the brake shoe 2 refers to the central angle formed by the brake shoe 2 wrapping the brake drum, namely the central angle R1 surrounded by two brake lugs 21.
The hinging means that the two components are connected through a pin shaft, the two components can rotate relatively, and the connection of torque is not transmitted.
As shown in fig. 1, 2 and 3, the utility model provides a winch embracing clutch mechanism of a first embodiment, which comprises two brake shoes 2, a driving disc 1 and two driving mechanisms 3, wherein the two brake shoes 2 wrap a brake drum (not shown in the drawings), and the central angle R1 of each brake shoe 2 is 157 degrees. The holding directions of the two brake shoes 2 are the same, the forward rotation direction of the driving disc 1 is opposite to the holding direction of the brake shoes 2, and the forward rotation direction of the driving disc 1 is the same as the opening direction of the brake shoes 2.
The utility model divides the existing brake shoes into two sections of brake shoes 2, so that the central angle of each brake shoe 2 is smaller than 180 degrees, and the positive rotation direction of the driving disc 1 is opposite to the clamping direction of the brake shoe 2 because the clamping directions of all brake shoes 2 are the same, so that the acting force of the brake shoe 2 for clamping the brake drum is increased. Because the central angle R1 of each brake shoe 2 is small, the fit degree of the brake shoe 20 and the brake drum is high, the friction area is increased, the stress of the brake shoe 2 is balanced, the abrasion of the brake shoe 20 is reduced, the tightening and pulling force is small, the fatigue fracture of the brake shoe 2 is avoided, the service life is long, and the safety, the reliability and the sensitivity are high. If one brake shoe 2 fails in a broken condition, the other brake shoe 2 can be used further.
As shown in fig. 2, two support pin holes 11 are formed in the driving disk 1, the two support pin holes 11 are symmetrically arranged, and one brake lug 21 of each brake shoe 2 is connected with the support pin hole 11 of the driving disk 1 through the support pin.
As shown in fig. 3, a brake-holding sheet 20 is installed on the inner surface of a brake shoe 2, brake lugs 21 are installed at two ends of the brake shoe 2, one brake lug 21 is hinged with a driving disc 1, the other brake lug 21 is hinged with a gear 22, an inner gear ring 10 is arranged in the driving disc 1, the inner gear ring 10 is concentric with the driving disc 1, the gear 22 is meshed with the inner gear ring 10, and each driving mechanism 3 drives each brake shoe 2 to be held tightly and opened. Each driving mechanism 3 comprises a clutch oil cylinder 30, a pull arm 23 is connected to the gear 22, and two ends of the clutch oil cylinder 30 are respectively hinged with the driving disc 1 and the pull arm 23. Under the condition that the acting force of the clutch oil cylinder 30 is the same, the longer the pull arm 23 is, the longer the acting force arm of the clutch oil cylinder 30 is, and the larger the holding tension and the return tension of the brake shoe 2 are. The smaller the force required by the clutch cylinder 30, the smaller the return force required by the return spring 31, under the condition of satisfying the holding tension and the return tension. The clutch mechanism has short response time and high sensitivity.
Because the inner gear ring 10 is arranged in the driving disc 1, the gear 22 is meshed with the inner gear ring 10, the driving mechanism 3 drives the brake shoe 2 to be tightly held and opened, the movable end of the brake shoe 2 moves along the inner gear ring 10, the circle center of the moving track of the movable end of the brake shoe 2 is the circle center of the inner gear ring 2, the inner gear ring 2 is concentric with the driving disc 1, namely, the moving track of the movable end of the brake shoe 2 is concentric with the circle center of the brake shoe 2, so that the brake holding piece 20 is high in fit degree with the brake drum, the friction area is increased, the brake shoe 2 is balanced in stress, the abrasion of the brake holding piece 20 is reduced, the holding tension is small, fatigue fracture of the brake shoe 2 is avoided, the service life is long, and the safety and reliability and sensitivity are high.
In order to adjust the fit degree of the brake pad 20 and the brake drum and the clutch clearance, the clutch clearance refers to the clearance between the brake pad 20 and the brake drum when the brake shoe 2 is opened. A connecting rod 33 and a locking nut 32 are arranged on a piston rod of the clutch oil cylinder 30, the connecting rod 33 is in threaded connection with the piston rod, the locking nut 32 locks the connecting rod 33, and the connecting rod 33 is hinged with the pull arm 23. The locking nut 32 is unscrewed, the connecting rod 33 is rotated, and the fit degree and the clutch clearance between the brake disc 20 and the brake drum can be conveniently and quickly adjusted.
In order to enable the clutch oil cylinder 30 to return quickly, the brake shoe 2 returns quickly from the clasping state to the opening state, response time is shortened, and sensitivity of a winch clutch mechanism is improved. A return spring 31 is arranged in a rod cavity of the clutch oil cylinder 30, and the return spring 31 enables a piston rod of the clutch oil cylinder 30 to retract so as to drive the brake shoe 2 to open.
As shown in fig. 4, 5 and 6, the present utility model provides a winch clutch mechanism according to a second embodiment, which is different from the winch clutch mechanism according to the first embodiment in that: comprises three shoes 2, a driving disc 1 and three driving mechanisms 3, wherein the central angle R1 of each shoe 2 is 100 degrees. As shown in fig. 5, three support pin holes 11 are formed in the driving disk 1, and the three support pin holes 11 are symmetrically arranged.
The techniques not described above are common general knowledge to a person skilled in the art. The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
1. A winch clutch mechanism is characterized by comprising a brake shoe (2), a driving disc (1) and a driving mechanism (3), wherein a brake holding sheet (20) is arranged on the inner surface of the brake shoe (2), brake lugs (21) are arranged at two ends of the brake shoe (2), one brake lug (21) is hinged with the driving disc (1), the other brake lug (21) is hinged with a gear (22), an inner gear ring (10) is arranged in the driving disc (1), the gear (22) is meshed with the inner gear ring (10), the driving mechanism (3) drives the brake shoe (2) to hold tightly and open, the forward rotation direction of the driving disc (1) is opposite to the holding direction of the brake shoe (2), and the forward rotation direction of the driving disc (1) is identical to the opening direction of the brake shoe (2).
2. The winch embracing type clutch mechanism according to claim 1, wherein the driving mechanism (3) comprises a clutch oil cylinder (30), a pull arm (23) is connected to the gear (22), and two ends of the clutch oil cylinder (30) are hinged with the driving disc (1) and the pull arm (23) respectively.
3. The winch clasping clutch mechanism according to claim 2, wherein a return spring (31) is arranged in a rod cavity of the clutch oil cylinder (30), and the return spring (31) enables a piston rod of the clutch oil cylinder (30) to retract to drive the brake shoe (2) to open.
4. A hoisting machine embracing clutch mechanism according to claim 3, characterized in that a connecting rod (33) and a lock nut (32) are mounted on the piston rod of the clutch cylinder (30), the connecting rod (33) is in threaded connection with the piston rod, the lock nut (32) locks the connecting rod (33), and the connecting rod (33) is hinged with the pull arm (23).
5. The winch embracing type clutch mechanism according to claim 1, comprising two brake shoes (2) and two driving mechanisms (3), wherein two support pin holes (11) are formed in the driving disc (1), the two support pin holes (11) are symmetrically arranged, and one brake lug (21) of each brake shoe (2) is connected with the support pin hole (11) of the driving disc (1) through a support pin; the central angle R1 of each brake shoe (2) is smaller than 180 degrees; the central angle R1 of each brake shoe (2) is the same, and the holding directions of the two brake shoes (2) are the same.
6. The winch embracing type clutch mechanism according to claim 1, comprising three brake shoes (2) and three driving mechanisms (3), wherein three support pin holes (11) are formed in the driving disc (1), and the three support pin holes (11) are symmetrically arranged; one brake lug (21) of each brake shoe (2) is connected with a supporting pin hole (11) of the driving disc (1) through a supporting pin; the central angle R1 of each brake shoe (2) is smaller than 120 degrees; the central angle R1 of each brake shoe (2) is the same, and the holding directions of the three brake shoes (2) are the same.
7. The winch clasping mechanism according to claim 1, characterized in that the inner gear ring (10) is concentric with the driving disc (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321085927.0U CN219792308U (en) | 2023-05-08 | 2023-05-08 | Winding engine holding clutch mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321085927.0U CN219792308U (en) | 2023-05-08 | 2023-05-08 | Winding engine holding clutch mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219792308U true CN219792308U (en) | 2023-10-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321085927.0U Withdrawn - After Issue CN219792308U (en) | 2023-05-08 | 2023-05-08 | Winding engine holding clutch mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219792308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116425066A (en) * | 2023-05-08 | 2023-07-14 | 湖南九虎智能科技有限公司 | Winding engine holding clutch mechanism |
-
2023
- 2023-05-08 CN CN202321085927.0U patent/CN219792308U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116425066A (en) * | 2023-05-08 | 2023-07-14 | 湖南九虎智能科技有限公司 | Winding engine holding clutch mechanism |
| CN116425066B (en) * | 2023-05-08 | 2024-09-13 | 湖南九虎智能科技有限公司 | Winding engine holding clutch mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20231003 Effective date of abandoning: 20240913 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20231003 Effective date of abandoning: 20240913 |