CN210480703U - Anti-falling speed reducer for electric hoist crane - Google Patents
Anti-falling speed reducer for electric hoist crane Download PDFInfo
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- CN210480703U CN210480703U CN201921395423.2U CN201921395423U CN210480703U CN 210480703 U CN210480703 U CN 210480703U CN 201921395423 U CN201921395423 U CN 201921395423U CN 210480703 U CN210480703 U CN 210480703U
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- speed reducer
- output shaft
- sliding pin
- centrifugal ratchet
- speed
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Abstract
The utility model discloses an anti-falling speed reducer for a hoist crane, which comprises a speed reducer body, wherein the output end of the speed reducer body is connected with an output shaft, a centrifugal ratchet wheel is sleeved on the outer ring of the output shaft, a chute disc is arranged on one end surface of the speed reducer, which is positioned on the output shaft, a sliding pin is arranged in the chute disc, and the sliding pin corresponds to the centrifugal ratchet wheel; the utility model discloses an install a centrifugal ratchet additional at the output shaft of speed reducer, at rising or normal decline in-process, the device does not present any effect, nevertheless the speed of falling reaches the centrifugal ratchet expansion after certain speed, blocks the sliding pin in the outside immediately to guarantee that hoist and mount article can not directly fall, only need one section of rising again when the troubleshooting needs restart, make centrifugal ratchet break away from out the sliding pin and can resume normal use again, the utility model discloses safe and reliable effectively prevents to lift by crane article swift current car or drop rapidly, avoids appearing the incident, eliminates the potential safety hazard.
Description
Technical Field
The utility model relates to a building machinery technical field, in particular to prevent weighing down speed reducer for electric hoist crane.
Background
The existing electric hoist structure motor is connected with a speed reducer through a coupler, a two-section shaft and a spline sleeve. The motor is a brake motor, and no brake device is arranged. When the brake motor is seriously worn, water is fed into the brake, the brake motor is incorrectly installed and the like, and the brake of the brake motor is easy to lose efficacy; or any one of the motor output shaft, the coupler, the two-section shaft, the spline housing and the speed reducer input shaft is worn, toothed and the like, the conditions that a lifted object slides and even rapidly falls down and the like can occur, and great potential safety hazards exist in the hoisting process.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a prevent weighing down speed reducer for electric hoist crane can effectively solve and lift by crane article swift current car or drop rapidly among the background art, there is the problem of potential safety hazard in the hoist and mount in-process.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a prevent weighing down speed reducer for electric hoist crane, including the speed reducer body, output shaft is connected to speed reducer body output, the centrifugal ratchet of output shaft outer lane suit, the speed reducer is located an end face of output shaft and is equipped with the spout dish, be equipped with the sliding pin in the spout dish, the sliding pin is corresponding with the centrifugal ratchet.
Preferably, the sliding pin is U-shaped.
Preferably, the sliding pin is connected with the reducer body through a return spring.
Preferably, the chute disc and the output shaft are in the same circle center.
Preferably, the outer side of the speed reducer body is provided with a rolling ball, the outer ring of the rolling ball is sleeved with a speed limiting sleeve, and the speed limiting sleeve is connected with the speed reducer body.
Compared with the prior art, the utility model discloses the beneficial effect who produces is: the utility model discloses an install a centrifugal ratchet additional at the output shaft of speed reducer, at rising or normally decline in-process, the device does not present any effect, but the speed reduction reaches centrifugal ratchet expansion after certain speed, can block the sliding pin in the outside immediately, and the speed reducer can not continue to descend this moment to guarantee that hoist and mount article can not directly fall off, and only need one section of rising again when troubleshooting needs restart, make centrifugal ratchet break away from the sliding pin and can resume normal use again, the utility model discloses safe and reliable effectively prevents to lift by crane article swift current car or drop rapidly, avoids appearing the incident, eliminates the potential safety hazard.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. a speed reducer body; 2. an output shaft; 3. a centrifugal ratchet wheel; 4. a chute disc; 5. a slide pin; 6. a return spring; 7. a rolling ball; 8. a speed limiting sleeve.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1, the anti-falling speed reducer for the hoist crane comprises a speed reducer body 1, wherein an output end of the speed reducer body 1 is connected with an output shaft 2, a centrifugal ratchet wheel 3 is sleeved on an outer ring of the output shaft 2, a chute disc 4 is arranged on one end face, located on the output shaft 2, of the speed reducer 1, a sliding pin 5 is arranged in the chute disc 4, and the sliding pin 5 corresponds to the centrifugal ratchet wheel 3.
In this embodiment, the sliding pin 5 has a U-shape.
In this embodiment, the slide pin 5 is connected to the speed reducer body 1 through the return spring 6, and when the centrifugal ratchet wheel is disengaged from the slide pin, the return spring 6 returns the slide pin.
In this embodiment, the chute disc 4 and the output shaft 2 are the same circle center.
In this embodiment, the rolling ball 7 is arranged on the outer side of the speed reducer body 1, the speed-limiting sleeve 8 is sleeved on the outer ring of the rolling ball 7, the speed-limiting sleeve 8 is connected with the speed reducer body 1, and when the speed is too high, the rolling ball 7 is clamped with the speed-limiting sleeve 8 through a centrifugal effect, so that the speed is reduced.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (5)
1. A prevent weighing down speed reducer for electric hoist crane, including the speed reducer body, its characterized in that: the output end of the speed reducer body is connected with the output shaft, the centrifugal ratchet wheel is sleeved on the outer ring of the output shaft, a chute disc is arranged on one end face, located on the output shaft, of the speed reducer, a sliding pin is arranged in the chute disc, and the sliding pin corresponds to the centrifugal ratchet wheel.
2. The anti-falling speed reducer for the electric hoist crane according to claim 1, characterized in that: the sliding pin is U-shaped.
3. The anti-falling speed reducer for the electric hoist crane according to claim 1, characterized in that: the sliding pin is connected with the speed reducer body through a return spring.
4. The anti-falling speed reducer for the electric hoist crane according to claim 1, characterized in that: the chute disc and the output shaft are in the same circle center.
5. The anti-falling speed reducer for the electric hoist crane according to claim 1, characterized in that: the outer side of the speed reducer body is provided with rolling balls, the outer rings of the rolling balls are sleeved with speed limiting sleeves, and the speed limiting sleeves are connected with the speed reducer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921395423.2U CN210480703U (en) | 2019-08-26 | 2019-08-26 | Anti-falling speed reducer for electric hoist crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921395423.2U CN210480703U (en) | 2019-08-26 | 2019-08-26 | Anti-falling speed reducer for electric hoist crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210480703U true CN210480703U (en) | 2020-05-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921395423.2U Active CN210480703U (en) | 2019-08-26 | 2019-08-26 | Anti-falling speed reducer for electric hoist crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210480703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573550A (en) * | 2020-05-18 | 2020-08-25 | 安徽省华腾农业科技有限公司 | Agricultural lifting device stall self-locking assembly utilizing electromagnetic pole-changing principle |
-
2019
- 2019-08-26 CN CN201921395423.2U patent/CN210480703U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111573550A (en) * | 2020-05-18 | 2020-08-25 | 安徽省华腾农业科技有限公司 | Agricultural lifting device stall self-locking assembly utilizing electromagnetic pole-changing principle |
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