CN111285277A - Worm gear type ratchet wheel type winding mechanism - Google Patents
Worm gear type ratchet wheel type winding mechanism Download PDFInfo
- Publication number
- CN111285277A CN111285277A CN202010193615.6A CN202010193615A CN111285277A CN 111285277 A CN111285277 A CN 111285277A CN 202010193615 A CN202010193615 A CN 202010193615A CN 111285277 A CN111285277 A CN 111285277A
- Authority
- CN
- China
- Prior art keywords
- worm
- motor
- output shaft
- ratchet wheel
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
Abstract
The invention discloses a worm wheel type ratchet wheel type hoisting mechanism, which comprises a motor, a winding drum and a pawl type worm wheel and worm unidirectional force transmission speed reducing mechanism, the motor comprises an ascending motor and a descending motor, the pawl type worm gear and worm one-way force transmission speed reducing mechanism comprises an output shaft, a centering disc, a ratchet wheel, a worm wheel, a pawl and a worm, the ratchet wheel is fixed on the output shaft and rotates along with the output shaft, the centering disc and the worm wheel are sleeved on the output shaft through a bearing but do not rotate along with the output shaft, the centering disc is positioned on the left side of the ratchet wheel, the worm wheel is positioned on the right side of the ratchet wheel, one end of a connecting shaft is fixed on the centering disc, the other end of the connecting shaft is fixed on the worm wheel, the pawl is arranged on the connecting shaft, one end of, the ascending motor is connected with the left end of the winding drum, the right end of the winding drum is connected with the output shaft, and the descending motor is connected with the worm. The lifting mechanism has an automatic locking function, the lifting motor and the descending motor only need to rotate in one direction, and the failure rate is low.
Description
Technical Field
The invention relates to the field of machinery, in particular to a worm gear type ratchet wheel type winding mechanism.
Background
The winding machine is a mechanism which drives a winding drum to rotate by a motor and lifts or pulls a heavy object by a steel wire rope or a chain wound on the winding drum. The existing hoisting mechanisms are all formed by connecting a motor with a winding drum, and the ascending and descending of a heavy object connected with a steel wire on the winding drum are realized through the positive rotation and the reverse rotation of the motor. The motor of the mechanism needs to rotate forwards and backwards, is complex to control and is easy to break down. In addition, when the motor stops rotating after the heavy object rises, the heavy object easily slides down due to the gravity action of the heavy object, and potential safety hazards exist.
Disclosure of Invention
The invention provides a worm gear type ratchet wheel type winding mechanism.
The invention aims to solve the problems that the conventional hoisting mechanism needs to rotate forwards and backwards, is complex to control and easy to break down, and has potential safety hazards due to the fact that the heavy object easily slides downwards under the action of gravity when a motor stops rotating after the heavy object rises.
The technical scheme adopted by the invention for solving the technical problems is as follows: a worm-gear type ratchet wheel type hoisting mechanism comprises a motor, a winding drum and a pawl type worm-gear unidirectional force transmission speed reducing mechanism, the motor comprises an ascending motor and a descending motor, the pawl type worm gear and worm one-way force transmission speed reducing mechanism comprises an output shaft, a centering disc, a ratchet wheel, a worm wheel, a pawl and a worm, the ratchet wheel is fixed on the output shaft and rotates along with the output shaft, the centering disc and the worm wheel are sleeved on the output shaft through a bearing but do not rotate along with the output shaft, the centering disc is positioned on the left side of the ratchet wheel, the worm wheel is positioned on the right side of the ratchet wheel, one end of a connecting shaft is fixed on the centering disc, the other end of the connecting shaft is fixed on the worm wheel, the pawl is arranged on the connecting shaft, one end of, the ascending motor is connected with the left end of the winding drum, the right end of the winding drum is connected with the output shaft, and the descending motor is connected with the worm.
Preferably, the number of the connecting shafts is three, and one connecting shaft is matched with one pawl and one spring, so that the number of the pawls is 3, and the number of the springs is 3.
Preferably, the ascending motor is fixed on the motor base.
The invention has the beneficial effects that: the worm-gear ratchet wheel type winding mechanism respectively controls the forward rotation and the reverse rotation of the winding drum through the ascending motor and the descending motor, the ascending motor and the descending motor only need to rotate in one direction, the forward rotation and the reverse rotation are not needed, the control is simple, and the failure rate is low. The ratchet type worm gear and worm unidirectional force transmission speed reducing mechanism can be locked through a ratchet wheel of a pawl, so that heavy objects are prevented from sliding downwards. When the weight descends, the weight does work, the power required by the descending motor is very low, and the energy-saving advantage is achieved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
as shown in the figure, the worm wheel type ratchet wheel type hoisting mechanism provided by the invention comprises a motor, a winding drum 2 and a pawl type worm and gear unidirectional force transmission speed reducing mechanism, wherein the motor comprises an ascending motor 1 and a descending motor 3, the pawl type worm and gear unidirectional force transmission speed reducing mechanism comprises an output shaft 4, a centering disc 5, a ratchet wheel 6, a worm wheel 7, a pawl 8 and a worm 9, the ratchet wheel 6 is fixed on the output shaft 4 and rotates along with the output shaft 4, the centering disc 5 and the worm wheel 7 are sleeved on the output shaft 4 through a bearing but do not rotate along with the output shaft 4, the centering disc 5 is positioned on the left side of the ratchet wheel 6, the worm wheel 7 is positioned on the right side of the ratchet wheel 6, one end of a connecting shaft 10 is fixed on the centering disc 5, the other end of the connecting shaft is fixed on the worm wheel 7, the pawl 8 is arranged on the connecting shaft 7, the ascending motor 1 is connected with the left end of the winding drum 2, the right end of the winding drum 2 is connected with the output shaft 4, and the descending motor 3 is connected with the worm 9.
The number of the connecting shafts 10 is three, and one connecting shaft 10 is matched with one pawl 8 and one spring 11, so that the number of the pawls is 3, and the number of the springs is 3.
The lifting motor 1 is fixed on a motor base 12.
The working process is as follows: when the ascending motor 1 is normally started, the winding drum 2 is driven to rotate positively, the winding drum 2 drives the output shaft 4 to rotate, the output shaft 4 drives the ratchet wheel 6 to rotate, namely, the ratchet wheel 6 rotates clockwise in the drawing 2, at the moment, the descending motor 3, the worm 9, the worm wheel 7, the centering disc 5 and the pawl 8 are not moved, relative motion among the ratchet wheel and the pawl is not locked, and a heavy object ascends under the action of a steel wire rope of the winding drum 2. When the ascending motor 1 stops, the ascending motor is locked by a brake, the winding drum 2 and the output shaft 4 do not rotate any more, the ratchet wheel 6 does not rotate clockwise any more, and meanwhile, the ratchet wheel 6 is locked by the pawl 8 and cannot rotate anticlockwise, namely, the output shaft 4 and the winding drum 2 cannot rotate reversely, so that the heavy object is prevented from sliding downwards. When the descending motor 3 is started, the descending motor 3 drives the worm 9 to move, so that the worm wheel 7, the centering disc 5 and the pawl 8 are driven to rotate anticlockwise in the drawing 2, the ratchet wheel 6 is unlocked, the brake of the ascending motor 1 is released, the ascending motor 1, the winding drum 2 and the output shaft 4 are in a free state, the winding drum 2 is driven to rotate reversely under the action of the gravity of a heavy object hung on the steel wire rope, the winding drum 2 drives the output shaft 4 and the ratchet wheel 6 to rotate reversely, and the heavy object descends.
Claims (3)
1. The utility model provides a worm gear formula ratchet type hoist mechanism, includes motor, reel, its characterized in that: the ratchet type worm and gear unidirectional force transmission speed reducing mechanism comprises an output shaft, a centering disc, a ratchet wheel, a worm wheel, a pawl and a worm, wherein the ratchet wheel is fixed on the output shaft and rotates along with the output shaft, the centering disc and the worm wheel are sleeved on the output shaft through a bearing but do not rotate along with the output shaft, the centering disc is positioned on the left side of the ratchet wheel, the worm wheel is positioned on the right side of the ratchet wheel, one end of a connecting shaft is fixed on the centering disc, the other end of the connecting shaft is fixed on the worm wheel, the pawl is arranged on the connecting shaft, one end of a spring is fixed on the centering disc, the other end of the spring is fixed in the middle of the pawl, the worm wheel is meshed with the worm, the ascending motor is connected with the left end of a.
2. The worm-gear ratchet-type hoisting mechanism according to claim 1, wherein: the connecting shafts are three, one connecting shaft is matched with one pawl and one spring, so that the number of the pawls is 3, and the number of the springs is 3.
3. The worm-gear ratchet-type hoisting mechanism according to claim 1, wherein: the ascending motor is fixed on the motor base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010193615.6A CN111285277A (en) | 2020-03-18 | 2020-03-18 | Worm gear type ratchet wheel type winding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010193615.6A CN111285277A (en) | 2020-03-18 | 2020-03-18 | Worm gear type ratchet wheel type winding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111285277A true CN111285277A (en) | 2020-06-16 |
Family
ID=71021116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010193615.6A Withdrawn CN111285277A (en) | 2020-03-18 | 2020-03-18 | Worm gear type ratchet wheel type winding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111285277A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623986A (en) * | 2020-12-24 | 2021-04-09 | 武汉钢铁集团宏信置业发展有限公司 | Rope winding type mine hoisting device capable of rapidly switching fall prevention modes |
| CN112696463A (en) * | 2021-01-08 | 2021-04-23 | 广军 | Worm self-locking type unidirectional rotating mechanism |
| CN113582057A (en) * | 2021-08-10 | 2021-11-02 | 常州大学 | Self-protection type hoisting crane |
-
2020
- 2020-03-18 CN CN202010193615.6A patent/CN111285277A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623986A (en) * | 2020-12-24 | 2021-04-09 | 武汉钢铁集团宏信置业发展有限公司 | Rope winding type mine hoisting device capable of rapidly switching fall prevention modes |
| CN112623986B (en) * | 2020-12-24 | 2024-04-05 | 武汉钢铁集团宏信置业发展有限公司 | Rope winding type mine lifting device capable of rapidly switching anti-falling modes |
| CN112696463A (en) * | 2021-01-08 | 2021-04-23 | 广军 | Worm self-locking type unidirectional rotating mechanism |
| CN113582057A (en) * | 2021-08-10 | 2021-11-02 | 常州大学 | Self-protection type hoisting crane |
| CN113582057B (en) * | 2021-08-10 | 2022-09-09 | 常州大学 | Self-protection type hoisting crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200616 |
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| WW01 | Invention patent application withdrawn after publication |