Hydraulic positioning device for bottom shaft of steel dam

Abstract

The utility model relates to the technical field of water conservancy equipment, particularly discloses a hydraulic positioning device for a bottom shaft of a steel dam, and solves the problem of lack of emergency operation in the prior art. Comprising a fixing base corresponding to the tail of the force arm in position, two limiting bases are symmetrically arranged at the upper end of the fixing base, a gap between the two limiting bases corresponds to a limiting penetrating hole in the tail of the force arm in position, a limiting penetrating hole is formed in the upper end of each limiting base, and a locking column is arranged in each limiting penetrating hole in a matched mode. The locking column is connected with the limiting base through a guiding piece, a U-shaped clamping plate is arranged at the lower end of the locking column, and a locking pushing mechanism used for driving the locking column to move horizontally is arranged on one side of the fixed base. And meanwhile, a manual mode can be switched, manual operation can be carried out in an emergency state, and the working reliability of equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy engineering, in particular to a hydraulic positioning device for a bottom shaft of a steel dam. Background Art

[0002] The gate is a control facility used to close and open the water discharge (release) channel. It is an important part of hydraulic structures and can be used to intercept water flow, control water level, adjust flow, discharge sediment and floating objects, etc. The gate includes a rotating gate and a vertical gate. When setting the rotating gate, the lower end of the gate plate will slide around the bottom, and the rotating force will be sampled by the hydraulic hoist. The hydraulic hoist drives the power arm to rotate. When the rotation reaches the extreme position, the force arm position needs to be locked, otherwise the hydraulic hoist needs to keep working at all times. Although the existing equipment can be locked by hydraulic pressure, it cannot be operated in an emergency if it is damaged.

[0003] Based on this, a hydraulic positioning device for the bottom shaft of a steel dam is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0004] The utility model aims to provide a hydraulic positioning device for a steel dam bottom shaft, which solves the problem of lack of emergency operation in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hydraulic positioning device for a bottom shaft of a steel dam comprises a fixed base corresponding to the position of the tail of a lever arm, two limit bases are symmetrically arranged on the upper end of the fixed base, a gap between the two limit bases corresponds to the position of a limit through-hole at the tail of the lever arm, a limit through-hole is arranged on the upper end of the limit base, a locking column is matched in the limit through-hole, the locking column and the limit base are connected by a guide, a U-shaped clamp is arranged on the lower end of the locking column, and a locking push mechanism for driving the locking column to move horizontally is arranged on one side of the fixed base.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: a wear-resistant layer is provided on the outer side of the locking column.

[0009] In an optional scheme: the locking push mechanism includes a hydraulic push rod, a hydraulic push plate is provided at the output end of the hydraulic push rod, a U-shaped clamp is provided at the lower end of the locking column, the lower end of the hydraulic push rod is connected to the base through a positioning column, a guide sleeve is fixedly provided on the base on one side of the hydraulic push rod, a push slide rod is slidably provided on the guide sleeve, the cross-section of the push slide rod is a T-shaped structure, a limiting base matching the U-shaped clamp is provided at the end of the guide sleeve, the push slide rod is connected to a manual operating unit for driving it to slide, and the lower end of the base is slidably arranged with a guide rail.

[0010] In an optional solution: a switching wrench for driving the base to slide is provided at the upper end of the base, and a locking bolt for locking the base in position is provided at the upper end of the base.

[0011] In an optional scheme: the manual operation unit includes a rack arranged at the upper end of the pushing slide rod, a manual push plate matching the U-shaped clamping plate is provided at the end of the pushing slide rod, a driving gear is meshed above the rack, one side of the driving gear is connected to a worm wheel through a transmission shaft, the transmission shaft is rotatably connected to the vertical plate at the upper end of the base, a worm is meshed above the worm wheel, both ends of the worm are rotatably connected to the bearing seat at the upper end of the base, and a handle is provided at the end of the worm for easy driving of its rotation.

[0012] In an optional solution: the guide member includes a tail plate arranged at the end of the locking column, and guide through holes are symmetrically provided on both sides of the tail plate. A guide rod is matched in each guide through hole, and the inner end of the guide rod is connected to the limit base.

[0013] In an optional solution: a plurality of reinforcing ribs are provided between the limiting base and the fixing base.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model is designed according to existing needs, and can lock the position of the force arm by hydraulic pressure, and can also switch to a manual mode at the same time, and can be manually operated in an emergency state, thereby ensuring the reliability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the other side of the utility model.

[0018] Notes on reference numerals: force arm 100;

[0019] Base 200, switching wrench 201, guide rail 202, locking bolt 203;

[0020] Hydraulic push rod 300;

[0021] Bearing seat 400, handle 401, worm wheel 402, worm 403, guide sleeve 404, push slide bar 405, rack 406, driving gear 407;

[0022] Fixed base 501 , limiting base 502 , manual push plate 503 , limiting through hole 504 , locking column 505 , guide rod 506 , U-shaped clamping plate 507 , hydraulic push plate 508 . DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 2 As shown, the embodiment of the utility model provides a hydraulic positioning device for the bottom shaft of a steel dam, comprising a fixed base 501 corresponding to the tail position of the lever arm 100, two limiting bases 502 are symmetrically arranged on the upper end of the fixed base 501, and the gap between the two limiting bases 502 corresponds to the position of the limiting perforation at the tail of the lever arm 100, a limiting perforation 504 is arranged on the upper end of the limiting base 502, and a locking column 505 is matched in the limiting perforation 504, the locking column 505 is connected to the limiting base 502 through a guide, a U-shaped clamping plate 507 is arranged at the lower end of the locking column 505, and a locking pushing mechanism for driving the locking column 505 to move horizontally is arranged on one side of the fixed base 501, and the locking pushing mechanism makes the locking column 505 pass through the limiting perforation 504 at the upper end of the limiting base 502, and then the locking column 505 passes through the limiting hole at the end of the lever arm 100, thereby completing the locking of the position;

[0025] The locking push mechanism includes a hydraulic push rod 300, a hydraulic push plate 508 is provided at the output end of the hydraulic push rod 300, a U-shaped clamping plate 507 is provided at the lower end of the locking column 505, the lower end of the hydraulic push rod 300 is connected to the base 200 through a positioning column, a guide sleeve 404 is fixedly provided on the base 200 on one side of the hydraulic push rod 300, a push slide rod 405 is slidably provided on the guide sleeve 404, the cross-section of the push slide rod 405 is a T-shaped structure, a limit base 502 matching the U-shaped clamping plate 507 is provided at the end of the guide sleeve 404, the push slide rod 405 is connected to a manual operation unit for driving it to slide, and the lower end of the base 200 is fixed to the guide sleeve 404. The rail 202 is slidably arranged, and a switching wrench 201 for driving the sliding of the rail 202 is provided at the upper end of the base 200, and a locking bolt 203 for locking the position of the rail 202 is provided at the upper end of the base 200. Under normal conditions, the hydraulic push rod 300 drives one end of the hydraulic push plate 508, and the hydraulic push plate 508 matches the U-shaped clamping plate 507, thereby driving the locking column 505 to complete the limiting action. When the hydraulic push rod 300 is damaged, the base 200 is driven to move by the switching wrench 201, so that the limiting base 502 matches the U-shaped clamping plate 507, and then the push slide rod 405 is driven to move by the manual operation unit, thereby providing a manual driving force for the movement of the limiting base 502, so that the equipment can also work in an emergency state;

[0026] The manual operation unit includes a rack 406 arranged at the upper end of the push slide 405, and a manual push plate 503 matching the U-shaped clamping plate 507 is provided at the end of the push slide 405. A driving gear 407 is meshed above the rack 406, and one side of the driving gear 407 is connected to the worm wheel 402 through a transmission shaft, and the transmission shaft is rotatably connected to the vertical plate at the upper end of the base 200. A worm 403 is meshed above the worm wheel 402, and both ends of the worm 403 are rotatably connected to the bearing seat 400 at the upper end of the base 200. A handle 401 is provided at the end of the worm 403 for easy driving its rotation. The worm 403 is driven to rotate by the handle 401, and the worm 403 drives the worm wheel 402 to rotate, and the worm wheel 402 drives the driving gear 407 to rotate. The driving gear 407 matches the rack 406 to drive the push slide 405 to slide, thereby obtaining manual thrust. The worm gear structure is adopted here, which has a self-locking function and effectively improves the stability of the equipment.

[0027] The guide member includes a tail plate arranged at the end of the locking column 505, and guide holes are symmetrically arranged on both sides of the tail plate. A guide rod 506 is matched in each guide hole, and the inner end of the guide rod 506 is connected to the limiting base 502, so that the locking column 505 can move horizontally along the guide rod 506, so that the locking column 505 can smoothly pass through the limiting hole 504 to complete the limited sliding;

[0028] A plurality of reinforcing ribs are provided between the limiting base 502 and the fixing base 501 .

[0029] Working principle: In actual use, when the lever arm 100 rotates to the limit position along with the rotating shaft, the hydraulic push plate 508 is driven to move by the hydraulic push rod 300, and the hydraulic push plate 508 matches with the U-shaped clamping plate 507, thereby driving the locking column 505 to pass through the limiting through hole 504, and then locking the end of the lever arm 100;

[0030] When the hydraulic push rod 300 is damaged, the handle 401 drives the worm 403 to rotate, the worm 403 drives the worm wheel 402 to rotate, the worm wheel 402 drives the driving gear 407 to rotate, and the driving gear 407 matches the rack 406 to drive the push slide rod 405 to slide, thereby obtaining manual thrust. The worm gear structure adopted here has a self-locking function, which effectively improves the stability of the equipment.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic positioning device for a bottom shaft of a steel dam, comprising a fixed base (501) corresponding to the tail position of a lever arm (100), wherein two limit bases (502) are symmetrically arranged at the upper end of the fixed base (501), characterized in that: The gap between the two limiting bases (502) corresponds to the position of the limiting through-hole at the tail of the force arm (100); a limiting through-hole (504) is provided at the upper end of the limiting base (502); a locking column (505) is provided in the limiting through-hole (504); the locking column (505) is connected to the limiting base (502) via a guide member; a U-shaped clamping plate (507) is provided at the lower end of the locking column (505); and a locking pushing mechanism for driving the locking column (505) to move horizontally is provided on one side of the fixed base (501).

2. The hydraulic positioning device for the bottom shaft of a steel dam according to claim 1 is characterized in that: The outer side of the locking column (505) is provided with a wear-resistant layer.

3. The hydraulic positioning device for the bottom shaft of a steel dam according to claim 1 is characterized in that: The locking push mechanism comprises a hydraulic push rod (300), the output end of the hydraulic push rod (300) is provided with a hydraulic push plate (508), the lower end of the locking column (505) is provided with a U-shaped clamping plate (507), the lower end of the hydraulic push rod (300) is connected to the base (200) through a positioning column, a guide sleeve (404) is fixedly provided on the base (200) on one side of the hydraulic push rod (300), a push slide rod (405) is slidably provided on the guide sleeve (404), the cross section of the push slide rod (405) is a T-shaped structure, the end of the guide sleeve (404) is provided with a limiting base (502) matching the U-shaped clamping plate (507), the push slide rod (405) is connected to a manual operation unit for driving it to slide, and the lower end of the base (200) is slidably arranged with the guide rail (202).

4. The hydraulic positioning device for the bottom shaft of a steel dam according to claim 3 is characterized in that: The upper end of the base (200) is provided with a switching wrench (201) for driving the base (200) to slide, and the upper end of the base (200) is provided with a locking bolt (203) for locking the position of the base (200).

5. The hydraulic positioning device for the bottom shaft of a steel dam according to claim 3 is characterized in that: The manual operation unit comprises a rack (406) arranged at the upper end of a push slide rod (405); a manual push plate (503) matching with a U-shaped clamp plate (507) is provided at the end of the push slide rod (405); a driving gear (407) is meshed above the rack (406); one side of the driving gear (407) is connected to a worm wheel (402) via a transmission shaft; the transmission shaft is rotatably connected to a vertical plate at the upper end of a base (200); a worm (403) is meshed above the worm wheel (402); both ends of the worm (403) are rotatably connected to a bearing seat (400) at the upper end of the base (200); and a handle (401) is provided at the end of the worm (403) for driving the worm to rotate.

6. The hydraulic positioning device for the bottom shaft of a steel dam according to claim 2, characterized in that: The guide member comprises a tail plate arranged at the end of the locking column (505), and guide through holes are symmetrically arranged on both sides of the tail plate. A guide rod (506) is matched in each guide through hole, and the inner end of the guide rod (506) is connected to the limit base (502).

7. The hydraulic positioning device for the bottom shaft of a steel dam according to claim 6, characterized in that: A plurality of reinforcing ribs are provided between the limiting base (502) and the fixing base (501).

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