CN222100765U - A quick-closing screw hoist - Google Patents

Abstract

The utility model discloses a quick-closing type screw hoist which comprises a first hoist assembly for driving a gate to lift and a second hoist assembly for driving the first hoist assembly to lift, wherein the first hoist assembly comprises a first mounting table, a first control motor and a first mounting chamber are arranged on the first mounting table, a gear is arranged in the first mounting chamber, the output end of the first control motor is connected with a vertical first screw through gear transmission, the lower end of the first screw is fixedly connected with the gate, and the hoist speed of the gate is improved by the combined action of the hoist assembly with the control motor with a high meshing ratio and is doubled compared with that of a similar hoist with a single hoist assembly. The novel control unit comprises a control system of the quick-closing screw hoist, and a manual control unit, a remote control unit and an uninterruptible power supply system are arranged in the control system, so that a power-off automatic gate closing system under emergency conditions can be realized.

Description

Quick-closing screw hoist

Technical Field

The utility model relates to the technical field of water conservancy equipment, in particular to a quick-closing screw hoist.

Background

The hoist is used for various large-scale hydraulic and hydroelectric engineering and is used for controlling the lifting of various large and medium cast iron gates and steel gates to achieve the aim of opening and closing. The water inlet is often provided with a quick gate hoist, namely when the hydraulic generator fails or a pressure pipeline breaks down or other reasons, the gate is quickly closed within 2-3 minutes by automatic control or manual operation, so that the effect of safety protection is achieved.

The screw hoist is a traditional machine type, and in the prior art, for example, a screw hoist is disclosed in Chinese patent with a patent number of CN 208899431U. Including upper cover, box and sleeve, the upper cover has the mesopore, the top of box, bottom are equipped with the opening respectively, the top at the box is connected to the upper cover, telescopic connection is in the bottom of box, be equipped with the screw rod in upper cover, box and the sleeve, the bottom opening of box is equipped with drive nut, the screw rod is located drive nut, drive nut's surface is equipped with big bevel gear through key connection, one side of apron is equipped with the distancer, and this type headstock gear adopts hand formula, and its functioning speed is often slower, and the screw rod headstock gear of some electric types also all adopts a motor to control the screw rod rotation, and its operating efficiency is also general to the operation of for a long time lacks lubrication, and the screw rod damage rate is higher.

Disclosure of utility model

The utility model aims to solve the problems in the prior art and provide the quick-closing screw hoist, which can simultaneously operate to lift the gate by arranging the first hoist assembly and the second hoist assembly, and compared with a similar hoist with a single hoist assembly, the quick-closing screw hoist has the advantages that the speed is doubled, and in the case that one hoist assembly is damaged, the other hoist assembly can lift the gate, so that the overall operation stability of the hoist is improved.

In order to solve the problems, the utility model adopts the following technical scheme:

The quick-closing screw hoist comprises a first hoist assembly for driving a gate to lift and a second hoist assembly for driving the first hoist assembly to lift, wherein the first hoist assembly comprises a first installation table, a first control motor and a first installation chamber are arranged on the first installation table, a gear is arranged in the first installation table, the output end of the first control motor is connected with a vertical first screw through gear transmission, the lower end of the first screw is fixedly connected with the gate, the second hoist assembly comprises a second installation table, a second control motor and a second installation chamber are arranged on the second installation table, a gear is arranged in the second installation chamber, the output end of the second control motor is connected with a vertical second screw through gear transmission, and the lower end of the second screw is fixedly connected with the first installation table.

Preferably, the gear comprises a first steering gear coaxially connected with the output shaft of the motor and a second steering gear in threaded connection with the screw, and the first steering gear and the second steering gear are in meshed connection.

Preferably, the first installation room and the second installation room are both provided with lubrication assembly, lubrication assembly includes the oil storage room, the bottom of oil storage room is provided with the oil-out, and the oil-out extends towards gear and screw rod and is provided with out oil pipe, and the inside of oil storage room is provided with upper and lower sliding connection has the briquetting, the upper end fixed mounting of briquetting has the depression bar, the upper end of depression bar extends to the outer end and fixedly connected with handle of oil storage room.

Preferably, the lubricating assembly further comprises a reserve oil chamber, the reserve oil chamber is communicated with the bottom of the oil storage chamber, a one-way valve for controlling lubricating oil to flow from the reserve oil chamber to the oil storage chamber is arranged at the communicating position, and an oil filling port is arranged in the reserve oil chamber.

Preferably, the bottom surface of the reserve oil chamber is higher than the bottom surface of the oil reservoir chamber.

Preferably, the first screw and the second screw are both provided with two screws.

Preferably, a waterproof layer is arranged at the lower end of the first screw.

Compared with the prior art, the gate lifting device has the advantages that the first opening and closing component and the second opening and closing component are arranged, so that the gate can be lifted and lowered simultaneously, the speed is doubled compared with that of a similar single opening and closing component, and the other opening and closing component can lift and lower the gate under the condition that one opening and closing component is damaged, and the integral operation stability of the gate lifting device is improved.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is an exterior perspective view of the mounting chamber of the present utility model;

FIG. 3 is a first perspective view of the interior of the mounting chamber of the present utility model;

FIG. 4 is a second perspective view of the interior of the mounting chamber of the present utility model;

FIG. 5 is a third perspective view of the interior of the mounting chamber of the present utility model;

Wherein: 1, a first opening and closing component; 11, a first mounting table, 12, a first control motor, 13, a first mounting chamber, 14, a second screw rod, 14, a waterproof layer, 2, a second opening and closing assembly, 21, a second mounting table, 22, a second control motor, 23, a second mounting chamber, 24, a second screw rod, 3, a gate, 4, a gear, 41, a first steering gear, 42, a second steering gear, 5, a lubricating assembly, 51, an oil storage chamber, 52, an oil outlet, 53, an oil outlet pipe, 54, a pressing block, 55, a pressing rod, 56, a handle, 57 and a standby oil chamber.

Detailed Description

All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

The quick-closing screw hoist comprises a first hoist assembly 1 for driving a gate 3 to lift and a second hoist assembly 2 for driving the first hoist assembly 1 to lift, wherein the first hoist assembly 1 comprises a first installation table 11, a first control motor 12 and a first installation chamber 13 are arranged on the first installation table 11, a gear 4 is arranged in the first installation chamber 13, the output end of the first control motor 12 is connected with a vertical first screw 14 through the gear 4 in a transmission manner, the lower end of the first screw 14 is fixedly connected with the gate 3, the second hoist assembly 2 comprises a second installation table 21, a second control motor 22 and a second installation chamber 23 are arranged on the second installation table 21, the gear 4 is arranged in the second installation chamber 23, the output end of the second control motor 22 is connected with a vertical second screw 24 through the gear 4 in a transmission manner, and the lower end of the second screw 24 is fixedly connected with the first installation table 11. The first opening and closing component and the second opening and closing component are arranged, so that the gate can be lifted and lowered simultaneously, the speed is doubled compared with that of a similar single opening and closing component, and under the condition that one opening and closing component is damaged, the other opening and closing component can also lift and lower the gate, and the overall operation stability of the opening and closing machine is improved.

As shown in fig. 3, in the present embodiment, the gear 4 includes a first steering gear 41 coaxially connected with the output shaft of the motor and a second steering gear 42 threadedly connected with the screw, and the first steering gear 41 and the second steering gear 42 are engaged with each other.

As shown in fig. 3-5, in this embodiment, the first installation chamber 13 and the second installation chamber 23 are both provided with a lubrication assembly 5, the lubrication assembly 5 includes an oil storage chamber 51, an oil outlet 52 is provided at the bottom of the oil storage chamber 51, the oil outlet 52 extends toward the gear and the screw rod to provide an oil outlet pipe 53, a pressing block 54 is slidably connected up and down in the oil storage chamber, a pressing rod 55 is fixedly installed at the upper end of the pressing block 54, and the upper end of the pressing rod 55 extends to the outer end of the oil storage chamber 51 and is fixedly connected with a handle 56, and lubricates the gear and the screw rod by providing the lubrication assembly 5, so that the service life of the device is prolonged.

In this embodiment, the lubrication assembly further includes a backup oil chamber 57, the backup oil chamber 57 is communicated with the bottom of the oil storage chamber 51, a check valve is provided at the communication place to control the flow of the lubricating oil from the backup oil chamber to the oil storage chamber 51 only, and the backup oil chamber is provided with an oil filling port.

In this embodiment, the bottom surface of the oil reserve chamber 57 is higher than the bottom surface of the oil storage chamber 51, and with this structure, when the oil in the oil storage chamber 51 is deficient, the oil in the oil reserve chamber 57 can unidirectionally supplement the oil storage chamber 51, and the operation of the whole lubrication assembly 5 is not affected.

In this embodiment, the first screw 14 and the second screw 24 are both provided with two screws, and because the single motor controls the two rotating shafts on two sides, the reverser can be adopted to make the lifting on two sides synchronous or the screws on two sides adopt opposite structures, and the screws can also be controlled by reverse gear arrangement, so that the stability of the overall structure is improved.

In this embodiment, the waterproof layer 141 is disposed at the lower end of the first screw 14, and since the first screw 14 is close to the water surface, it is often impacted and corroded by the water flow, and the service life of the first screw is prolonged by disposing the waterproof layer 141.

The foregoing embodiments are provided for the purpose of exemplary reproduction and deduction of the technical solution of the present utility model, and are used for fully describing the technical solution, the purpose and the effects of the present utility model, and are used for enabling the public to understand the disclosure of the present utility model more thoroughly and comprehensively, and are not used for limiting the protection scope of the present utility model.

The above examples are also not an exhaustive list based on the utility model, and there may be a number of other embodiments not listed. Any substitutions and modifications made without departing from the spirit of the utility model are within the scope of the utility model.

Claims (7)

1. The quick-closing screw hoist is characterized by comprising a first opening and closing component (1) for driving a gate (3) to lift and a second opening and closing component (2) for driving the first opening and closing component (1) to lift, wherein the first opening and closing component (1) comprises a first mounting table (11), a first control motor (12) and a first mounting chamber (13) are arranged on the first mounting table (11), a gear (4) is arranged in the first mounting chamber (13), the output end of the first control motor (12) is connected with a vertical first screw (14) through the gear (4) in a transmission manner, the lower end of the first screw (14) is fixedly connected with the gate (3), the second opening and closing component (2) comprises a second mounting table (21), a second control motor (22) and a second mounting chamber (23) are arranged on the second mounting table (21), the output end of the second control motor (22) is connected with a vertical second screw (24) through the gear (4) in a transmission manner, and the lower end of the second control motor (22) is fixedly connected with the first screw (11).

2. The quick-closing screw hoist according to claim 1, characterized in that the gear (4) comprises a first steering gear (41) coaxially connected with the output shaft of the motor and a second steering gear (42) in threaded connection with the screw, and the first steering gear (41) and the second steering gear (42) are in meshed connection.

3. The quick-closing screw hoist according to claim 1, wherein the first mounting chamber (13) and the second mounting chamber (23) are both provided with a lubrication assembly (5), the lubrication assembly (5) comprises an oil storage chamber (51), an oil outlet (52) is arranged at the bottom of the oil storage chamber (51), an oil outlet pipe (53) is arranged at the oil outlet (52) in an extending manner towards the gear and the screw, a pressing block (54) is arranged in the oil storage chamber in a vertically sliding manner, a pressing rod (55) is fixedly arranged at the upper end of the pressing block (54), and the upper end of the pressing rod (55) extends to the outer end of the oil storage chamber (51) and is fixedly connected with a handle (56).

4. The quick-closing screw hoist according to claim 3, wherein the lubrication assembly further comprises a reserve oil chamber (57), the reserve oil chamber (57) is communicated with the bottom of the oil storage chamber (51), a check valve for controlling the flow of lubricating oil from the reserve oil chamber to the oil storage chamber (51) is arranged at the communication position, and an oil filling port is arranged at the reserve oil chamber (57).

5. The quick acting screw hoist according to claim 4, characterized in that the bottom surface of the backup oil chamber (57) is higher than the bottom surface of the oil reservoir chamber (51).

6. The quick-closing screw hoist according to claim 1, characterized in that the first screw (14) and the second screw (24) are provided with two screws.

7. The quick-closing screw hoist according to claim 1, characterized in that a waterproof layer (141) is provided at the lower end of the first screw (14).