CN220811618U - Door-shaped frame for lifting water inlet of dam crest of hydropower station - Google Patents
Door-shaped frame for lifting water inlet of dam crest of hydropower station Download PDFInfo
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- CN220811618U CN220811618U CN202322636007.XU CN202322636007U CN220811618U CN 220811618 U CN220811618 U CN 220811618U CN 202322636007 U CN202322636007 U CN 202322636007U CN 220811618 U CN220811618 U CN 220811618U
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- water inlet
- lifting
- safety rope
- dam crest
- worm
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000002457 bidirectional effect Effects 0.000 claims description 14
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model relates to a portal frame for lifting a water inlet of a dam crest of a hydropower station, which comprises a portal frame main body, an anti-falling mechanism and a winding and unwinding device, wherein the winding and unwinding device comprises a motor and a winding roller, the winding roller is connected to the output end of the motor in a transmission way, so that the winding roller rotates on a ZY surface and is used for winding and unwinding a safety rope, the anti-falling mechanism is arranged on the portal frame main body, and the winding and unwinding device comprises an anti-slip component and a transmission component. This power station dam crest water inlet lifts by crane and uses portal frame, two worm wheels drive two axostylus axostyles and two extrusion gear rotations, can with the safety rope interlock between two extrusion gear, and then ensure that the operating personnel is when dropping, the safety rope interlock is between two extrusion gear, and adopts worm wheel and two-way worm meshing's mode, and the operating personnel can not stimulate the safety rope when dropping, and can not drive extrusion gear rotation, the factor of safety when promoting the operating personnel operation.
Description
Technical Field
The utility model relates to the technical field of hydropower station dam inspection, in particular to a gate-shaped frame for lifting a water inlet of a dam crest of a hydropower station.
Background
When the lifting operation is carried out near the water inlet of the dam crest of the hydropower station, the safety is a critical consideration, and the portal frame is required to be subjected to strict engineering design and inspection so as to ensure that the portal frame is firm in structure and meets safety standards and specifications.
When the water inlet of the unit is checked, an operator uses the safety rope as an anti-falling rope from the upper side and the lower side of the water inlet of the unit, other operators are required to pull the safety rope to assist the safety rope to be up and down, if the operator carelessly slides down when climbing the ladder, the operator can easily pull the safety rope downwards, and the risk of falling at a high place exists, so that the door-shaped frame for lifting the water inlet of the dam top of the hydropower station is provided to solve the technical problem.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a portal frame for lifting a water inlet of a dam crest of a hydropower station, which solves the problems that other personnel are required to pull a safety rope to assist the safety rope up and down, and if the personnel carelessly slide down when climbing a ladder, the personnel pulling the safety rope are easy to pull down, and the risk of falling at a high place exists.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a gate-shaped frame for lifting a water inlet of a dam crest of a hydropower station comprises a gate-shaped frame main body, an anti-falling mechanism and a retraction device;
The winding and unwinding device comprises a motor and a winding roller, wherein the winding roller is in transmission connection with the output end of the motor so as to enable the winding roller to rotate on a ZY surface and is used for winding and unwinding the safety rope;
The anti-falling mechanism is arranged on the door-shaped frame main body, and the retraction device comprises an anti-slip component and a transmission component;
The anti-skid assembly comprises a mounting plate and two shaft rods, wherein the two shaft rods are all rotationally connected in the mounting plate, extrusion gears are sleeved on the outer sides of the two shaft rods, worm gears are sleeved on the outer sides of the two shaft rods, the two worm gears are meshed with the same two-way worm in the outer sides, and the two-way worm is in transmission connection with the output end of the motor through a transmission assembly, so that the two extrusion gears rotate on the XZ plane, and the lowering or lifting of a safety rope is realized.
Further, the threads on the outer surface of the bidirectional worm are divided into two sections, and the two sections of threads are opposite in direction.
Further, the anti-skid assembly further comprises at least two guide wheels;
at least two guide wheels rotate to be connected to the front side of the mounting plate, and the two guide wheels are mutually attached.
Further, arc-shaped grooves for the safety ropes to pass through are formed in the outer sides of the two guide wheels;
The center point of the space between the two guide wheels and the center point of the space between the extrusion gears are positioned on the same Z axis.
Further, a gap for the safety rope to pass through is reserved between the two extrusion gears, and the width on the axis of the gap X is smaller than the diameter of the safety rope.
Further, the two extrusion gears are symmetrically distributed on the left side and the right side of the vertical central axis of the mounting plate.
Further, the transmission assembly comprises a driving gear sleeved on the outer side of the wind-up roller, a toothed belt is meshed on the outer side of the driving gear, and a driven gear sleeved on the outer side of the bidirectional worm is meshed on the inner side of the toothed belt.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
This power station dam crest water inlet lifts by crane and uses portal frame, two worm wheels drive two axostylus axostyles and two extrusion gear rotations, can with the safety rope interlock between two extrusion gear, and then ensure that the operating personnel is when dropping, the safety rope interlock is between two extrusion gear, and adopts worm wheel and two-way worm meshing's mode, and the operating personnel can not stimulate the safety rope when dropping, and can not drive extrusion gear rotation, the factor of safety when promoting the operating personnel operation.
Drawings
FIG. 1 is a schematic view of a partial structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present utility model;
FIG. 3 is a schematic rear view of the present utility model;
FIG. 4 is a schematic view of the connection structure of the worm wheel and the worm of the present utility model;
Fig. 5 is a schematic diagram of the front view structure of the present utility model.
In the figure: 1. a door-type frame body; 2. an anti-falling mechanism; 201. a mounting plate; 202. a shaft lever; 203. extruding the gear; 204. a worm wheel; 205. a bidirectional worm; 206. a guide wheel; 207. a drive gear; 208. a toothed belt; 209. a driven gear; 3. a retraction device; 301. a motor; 302. and (5) a wind-up roller.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, in order to raise a safety line of an operator during operation, the door-shaped frame for lifting a water inlet of a dam crest of a hydropower station in the embodiment simultaneously avoids the problem that the operator slides down and easily pulls down the operator pulling the safety rope.
Specifically, the lifting door-shaped frame in the preferred embodiment of the utility model comprises a door-shaped frame main body 1, an anti-falling mechanism 2 and a retraction device 3, wherein the retraction device 3 comprises a motor 301 and a winding roller 302, the winding roller 302 is in transmission connection with the output end of the motor 301 so as to enable the winding roller 302 to rotate on a ZY surface, the winding roller is used for retracting and releasing a safety rope, and the anti-falling mechanism 2 is arranged on the door-shaped frame main body 1.
It should be noted that, the winding and unwinding device 3 further includes a transverse plate fixed on the upper end face of the door-shaped frame body 1, the left and right sides of the upper surface of the transverse plate are all fixed with supporting seats through bolts, and the winding roller 302 is rotationally connected inside the two supporting seats, one end of the winding roller 302 is wound with a safety rope fixed with the winding roller, and a through hole for the pull rope to move is formed in the transverse plate.
In the actual use process, the motor 301 drives the wind-up roller 302 to rotate, so that the safety rope on the outer side of the wind-up roller is wound up or put down, and then an operator pulls out or puts in the water inlet pipe in the hydroelectric pump.
Further, in the preferred embodiment shown in fig. 1-5, in order to improve the safety of the operator when the operator is put into the water inlet pipe, and avoid that the operator pulls the safety rope into the water inlet pipe when falling down, the preferred winding and unwinding device 3 comprises an anti-slip assembly and a transmission assembly, the anti-slip assembly comprises a mounting plate 201 and two shaft rods 202, the two shaft rods 202 are all rotatably connected in the mounting plate 201, the outer sides of the two shaft rods 202 are all sleeved with extrusion gears 203, the outer sides of the two shaft rods 202 are all sleeved with worm gears 204, the outer sides of the two worm gears 204 are meshed with the same two-way worm 205, and the two-way worm 205 is in transmission connection with the output end of the motor 301 through the transmission assembly, so that the two extrusion gears 203 rotate on the XZ plane to realize the lowering or lifting of the safety rope.
Further, in order to improve the stability of the safety rope during movement and to ensure that the safety rope can pass effectively between the two pressing gears 203, the anti-slip assembly preferably further comprises at least two guide wheels 206, wherein the at least two guide wheels 206 are rotatably connected to the front side of the mounting plate 201, and the two guide wheels 206 are mutually fitted.
It should be noted that, the threads on the outer surface of the bidirectional worm 205 are divided into two sections, the two sections of threads are opposite, the number of the guide wheels 206 is two, the number of the guide wheels 206 in each group is two, the two groups of guide wheels 206 are respectively arranged on the upper side and the lower side of the extrusion gear 203, the guide wheels 206 of the upper group and the lower group are located on the same Z axis, two bearing seats are arranged on the back surface of the mounting plate 201, and the bidirectional worm 205 is rotationally connected inside the two bearing seats.
During the actual use process, an operator pulls out the safety rope from the inside of the transverse plate, then sequentially passes through a group of guide wheels 206 on the upper side, two extrusion gears 203 and two guide wheels 206 on the lower side, then turns on an electric control switch of a motor 301, the motor 301 drives an outside transmission component to rotate while driving a wind-up roller 302 to rotate, the transmission component drives a bidirectional worm 205 to rotate, and the bidirectional worm 205 drives two worm gears 204 to rotate in opposite directions under the meshing effect.
Further, in order to engage the safety rope between the two extrusion gears 203, arc-shaped grooves for the safety rope to pass through are formed in the outer sides of the two guide wheels 206, the center point of the space between the two guide wheels 206 and the center point of the space between the extrusion gears 203 are located on the same Z axis, a gap for the safety rope to pass through is reserved between the two extrusion gears 203, the width on the X axis of the gap is smaller than the diameter of the safety rope, and the two extrusion gears 203 are symmetrically distributed on the left side and the right side of the vertical central axis of the mounting plate 201.
Furthermore, the two worm gears 204 drive the two shaft rods 202 and the two extrusion gears 203 to rotate, so that the safety rope can be meshed between the two extrusion gears 203, and further, when the safety rope falls down, the operator is guaranteed to be meshed between the two extrusion gears 203, the worm gears 204 and the bidirectional worm 205 are meshed, the operator can not pull the safety rope when falling down, the extrusion gears 203 can not be driven to rotate, and the safety factor of the operator during operation is improved.
In addition, referring to fig. 1, in order to link the wind-up roller 302 with the bidirectional worm 205, the transmission assembly includes a driving gear 207 sleeved outside the wind-up roller 302, a toothed belt 208 is meshed with the driving gear 207, and a driven gear 209 sleeved outside the bidirectional worm 205 is meshed with the toothed belt 208.
In the actual use process, the output end of the motor 301 rotates to drive the wind-up roller 302 to rotate, so as to drive the driving gear 207 on the outer side of the wind-up roller to rotate, and the driving gear 208 drives the toothed belt 208 on the outer side of the wind-up roller and the driven gear 209 on the inner side of the wind-up roller to rotate through the driving gear 207 in the middle of the transmission of the toothed belt 208, and the driven gear 209 drives the bidirectional worm 205 to rotate, so that the bidirectional worm 205 and the wind-up roller 302 are in a synchronous rotation state, and after the safety rope is pulled up by the extrusion gear 203, the wind-up roller 302 can effectively wind up the safety rope.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A door-shaped frame for lifting a water inlet of a dam crest of a hydropower station is characterized in that: comprises a door-shaped frame main body (1), an anti-falling mechanism (2) and a retraction device (3);
The winding and unwinding device (3) comprises a motor (301) and a winding roller (302), wherein the winding roller (302) is connected to the output end of the motor (301) in a transmission manner, so that the winding roller (302) rotates on a ZY surface and is used for winding and unwinding a safety rope;
The anti-falling mechanism (2) is arranged on the door-shaped frame main body (1), and the retraction device (3) comprises an anti-slip component and a transmission component;
The anti-skid assembly comprises a mounting plate (201) and two shaft rods (202), wherein the two shaft rods (202) are all rotationally connected inside the mounting plate (201), extrusion gears (203) are sleeved on the outer sides of the shaft rods (202), worm gears (204) are sleeved on the outer sides of the shaft rods (202), the two worm gears (204) are meshed with the same two-way worm (205) on the outer sides, and the two-way worm (205) is in transmission connection with the output end of a motor (301) through a transmission assembly so that the two extrusion gears (203) rotate on the XZ plane to realize the lowering or lifting of a safety rope.
2. The gantry for lifting a water inlet of a dam crest of a hydropower station according to claim 1, wherein: the threads on the outer surface of the bidirectional worm (205) are divided into two sections, and the two sections of threads are opposite in direction.
3. The gantry for lifting a water inlet of a dam crest of a hydropower station according to claim 1, wherein: the anti-skid assembly further comprises at least two guide wheels (206);
At least two guide wheels (206) are rotatably connected to the front side of the mounting plate (201), and the two guide wheels (206) are mutually attached.
4. A gate-shaped frame for lifting a water inlet of a dam crest of a hydropower station according to claim 3, wherein: arc-shaped grooves for the safety ropes to pass through are formed in the outer sides of the two guide wheels (206);
the center point of the space between the two guide wheels (206) and the center point of the space between the extrusion gears (203) are positioned on the same Z axis.
5. The gantry for lifting a water inlet of a dam crest of a hydropower station according to claim 1, wherein: a gap for the safety rope to pass through is reserved between the two extrusion gears (203), and the width on the axis of the gap X is smaller than the diameter of the safety rope.
6. The gantry for lifting a water inlet of a dam crest of a hydropower station according to claim 1, wherein: the two extrusion gears (203) are symmetrically distributed on the left side and the right side of the vertical central axis of the mounting plate (201).
7. The gantry for lifting a water inlet of a dam crest of a hydropower station according to claim 1, wherein: the transmission assembly comprises a driving gear (207) sleeved on the outer side of the wind-up roller (302), a toothed belt (208) is meshed on the outer side of the driving gear (207), and a driven gear (209) sleeved on the outer side of the bidirectional worm (205) is meshed on the inner side of the toothed belt (208).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322636007.XU CN220811618U (en) | 2023-09-27 | 2023-09-27 | Door-shaped frame for lifting water inlet of dam crest of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322636007.XU CN220811618U (en) | 2023-09-27 | 2023-09-27 | Door-shaped frame for lifting water inlet of dam crest of hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220811618U true CN220811618U (en) | 2024-04-19 |
Family
ID=90708912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322636007.XU Active CN220811618U (en) | 2023-09-27 | 2023-09-27 | Door-shaped frame for lifting water inlet of dam crest of hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220811618U (en) |
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2023
- 2023-09-27 CN CN202322636007.XU patent/CN220811618U/en active Active
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