CN217327017U

CN217327017U - Push-pull type foldable sealing cover plate for track of hoisting port of coal conveying trestle of thermal power plant

Info

Publication number: CN217327017U
Application number: CN202220822325.8U
Authority: CN
Inventors: 白建坤; 文新忠; 唐高; 何步书; 梅勇; 王玉鑫; 张伟科; 张刚; 艾科拜尔·艾麦提
Original assignee: SDIC XINJIANG LUOBUPO POTASH CO Ltd
Current assignee: SDIC XINJIANG LUOBUPO POTASH CO Ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-08-30
Anticipated expiration: 2032-04-11

Abstract

The utility model discloses a push-pull collapsible sealed apron of coal conveying trestle bridge hoist and mount mouth track of thermal power factory, set up the channel-section steel track that the inner end sealed on coal conveying trestle bridge hoist and mount mouth, fixed slip apron is articulated collapsible slip apron through the hinge and is constituting the combination apron, the both sides limit of fixed slip apron cooperatees with the channel-section steel track through the gyro wheel that sets up two sets of symmetries, it is articulating collapsible supporting wheel device on the back of fixed slip apron outer end, it is folding and unfolding through the collapsible supporting wheel of articulated crank connecting rod drive, the stand of symmetry is being rigid connected respectively to the back of collapsible slip apron outer end both sides, lower extreme at the stand is installing and is hoisting mouthful ground matched with supporting wheel through the shaft. The utility model discloses rational in infrastructure, safe and reliable, convenient operation thoroughly eradicate personnel or apron high altitude when the hoist and mount operation fall, bump the injury, injure by crashing safe risk such as, solve the sealed not tight powder environmental pollution problem that leaks of hoist and mount mouth, labour saving and time saving.

Description

Push-pull type foldable sealing cover plate for hoisting port track of coal conveying trestle in thermal power plant

Technical Field

The utility model belongs to coal conveying landing stage hoist and mount mouthful sealed apron of thermal power plant, especially a push-pull collapsible sealed apron of coal conveying landing stage hoist and mount mouth track of thermal power plant.

Background

The coal conveying trestle of the thermal power plant is an important link for coal supply of thermal power generation, plays an irreplaceable role, and the safe and stable operation of coal conveying equipment is a precondition for stable power generation. The coal conveying equipment is periodically overhauled and daily inspected and maintained every year, and the conveying of heavy inspection and maintenance equipment, materials, tools and the like is carried by vertically hoisting through hoisting ports of different standards and heights of the coal conveying trestle by using a top electric hoist. When the hoisting port is in non-hoisting operation, at least 3 people are required to hoist two or more thick hole cover plates by means of a top electric hoist to close the hoisting port layer by layer and enclose the detachable movable fence rail so as to ensure safety. During hoisting operation, the surrounding detachable fence of the hoisting port needs to be moved away layer by layer, the top electric hoist is used for hoisting one by one and moving away the thick and heavy cover plate, a specially-assigned person is needed to command the cooperation between the person operating the electric hoist at the top and the person hoisting the movable cover plate, the cover plate can be covered on the clamping groove of the cover plate at the hoisting port through multiple attempts, time and labor are consumed, the hoisting operation belongs to overhead hoisting operation, the accident that the person is injured by a crashing object due to falling objects at the high altitude caused by insecure suspension or dislocation with the clamping groove when the cover plate is sealed, and great potential safety hazards exist. In addition, because of hoist and mount mouth is located the different high-rise departments of coal conveying trestle, a large amount, and hoist and mount mouth size is great, and spatial position all around is narrow and small, has the apron space of keeping flat limited and trestle dust from the environmental pollution problems such as hoist and mount mouth pollution main building ground and equipment that drop.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coal conveying landing stage of thermal power factory hoists plug-type collapsible sealed apron of mouth track, its is rational in infrastructure, safe and reliable, convenient operation can thoroughly eliminate personnel or apron high altitude when the hoist and mount operation fall, bump injury, smash safe risk such as hinder, solve the sealed not tight powder environmental pollution problem that leaks of hoist and mount mouth, labour saving and time saving.

The purpose of the utility model is realized like this: a push-pull type foldable sealing cover plate of a rail at a hoisting port of a coal conveying trestle of a thermal power plant comprises the hoisting port of the coal conveying trestle of the thermal power plant, a channel steel rail with a sealed inner end is arranged on the hoisting port of the coal conveying trestle, a fixed sliding cover plate is hinged with the foldable sliding cover plate through a hinge to form a combined cover plate, two side edges of the fixed sliding cover plate are matched with the channel steel rail through two groups of symmetrical idler wheels, a foldable supporting wheel device is hinged on the back surface of the outer end of the fixed sliding cover plate, a hinged crank connecting rod drives the foldable supporting wheels to be folded and unfolded, symmetrical upright posts are fixedly connected on the back surfaces of two sides of the outer end of the foldable sliding cover plate respectively, supporting wheels matched with the ground of the hoisting port are arranged at the lower ends of the upright posts through wheel shafts, a push-pull handle is arranged on the front surface of the outer end of the foldable sliding cover plate, and a positioning ring is arranged on the top surface of the outer end of the channel steel rail, the front of the inner end of the fixed sliding cover plate is provided with a corresponding positioning ring correspondingly matched with the positioning ring, when the combined cover plate runs to the hoisting opening and is fully opened, the first positioning pin is inserted into the positioning ring and the corresponding positioning ring to position the combined cover plate, when the fixed sliding cover plate runs to the inner end of the channel steel track, the combined cover plate seals the hoisting opening, the outer end of the hoisting opening is provided with a hook connected with a sling chain to be hung on a push-pull handle, and the combined cover plate is locked on the hoisting opening.

The utility model discloses a channel-section steel track, fixed slip apron, track inner cup board guide roller, folding welding hinge, apron fixed stay round pin axle, stand and supporting wheel, collapsible slip apron, push-and-pull handle, insert ring, the folding hinge of supporting wheel, folding supporting handle, holding ring, locating pin with crank connecting rod. Fixedly mounting channel steel rails with the inner ends sealed by cross beams on the same horizontal plane of a concrete foundation with three sides of a hoisting opening, wherein a sealing cover plate is made of a steel plate with the thickness of 5mm and is divided into two parts, one part is a foldable sliding cover plate and comprises a stand column, a supporting wheel, a foldable welding hinge, a push-pull handle and an insert ring; the other one is a fixed sliding cover plate and comprises a guide roller of an inner cover plate of the track, a foldable support wheel, a support wheel folding hinge and a crank connecting rod support handle for folding; the periphery of the bottom surface of the cover plate is welded and fixed by angle steel, and 2-3 transverse and longitudinal tie bars are manufactured in the middle of the bottom surface of the sealing cover plate to be used as supports, so that the strength of the cover plate is enhanced; shaft seats are welded on angle steels at four corners of the bottom surface of the sealing cover plate, idler wheels are installed through the shaft seats and used for enabling the cover plate to horizontally move in a channel steel rail and on a platform in a front-back mode, 4 idler wheels are designed at four corners of the bottom of the fixed sliding cover plate and are supported in the channel steel rail to guide and roll, and 2 supporting wheels are designed at the bottom of the foldable sliding cover plate and roll on the floor platform outside a hoisting port; a foldable pulley and a crank connecting rod supporting and positioning device are arranged in the middle of the bottom surface of the fixed sliding cover plate and are used for folding the cover plate; a push-pull handle and a positioning pin are welded at one side of the upper surface of the foldable sliding cover plate without a track and are used for opening and closing the hoisting port sealing cover plate and positioning.

The opening, closing and folding functions of the transformed rear sealing cover plate are operated as follows:

(1) and (3) opening the cover plate: the cover plate positioning hook is taken down, the push-pull handle is pulled to realize opening, and the cover plate full-open positioning ring is inserted after full opening to realize the cover plate full-open positioning function;

(2) and (3) closing the cover plate: the push-pull handle is pushed to close the hoisting opening, and then the cover plate can be closed by hanging the cover plate positioning hook.

(3) And (3) folding the cover plate: the cover plate positioning hook is taken down, the push-pull handle is pulled to pull out the cover plate, the pluggable positioning pin for the horizontal positioning of the folding pulley is pulled out, the rotatable operating handle for the folding pulley is rotated to vertically drop the folding pulley, the pluggable positioning pin for the vertical positioning of the folding pulley is inserted, two cover plate fixing supporting pin shafts on the surface of the cover plate are pulled out, and the cover plate is lifted up to realize the folding function of the foldable sliding cover plate by welding a folding welding hinge.

The utility model is characterized in that a channel steel track with a closed inner end is fixedly arranged on the same horizontal plane of a three-sided concrete foundation at a hoisting port, a sealing cover plate is made of a steel plate with the thickness of 5mm and is divided into two parts, one part is a foldable sliding cover plate and comprises a stand column, a supporting wheel, a foldable welding hinge, a push-pull handle and an inserting ring; the other one is a fixed sliding cover plate and comprises a guide roller of an inner cover plate of the track, a foldable support wheel, a support wheel folding hinge and a crank connecting rod support handle for folding; the periphery of the bottom surface of the cover plate is welded and fixed by angle steel, and 2-3 transverse and longitudinal tie bars are manufactured in the middle of the bottom surface of the sealing cover plate to be used as supports, so that the strength of the cover plate is enhanced; four corners of the bottom surface of the sealing cover plate are respectively provided with a roller on an angle steel for the cover plate to horizontally move back and forth in the channel steel rail and on the platform, and the middle part of the bottom surface of the fixed sliding cover plate is provided with a foldable pulley and a crank connecting rod supporting and positioning device for the folding use of the cover plate; a push-pull handle and a closing limiting hook are welded at one side of the upper surface of the foldable sliding cover plate, and a positioning pin hole is welded at one side of the foldable sliding cover plate and the upper part of the track channel steel and used for positioning when the cover plate is sealed by a full-open hoisting opening, so that the cover plate is prevented from sliding. The upper surface of the cover plate is painted with yellow-black interval warning colors to be convenient for reminding people to pay attention.

The technical problem to be solved is as follows:

(1) the problem that when a person hangs a lifting hook to a lifting ring in the center of the cover plate, the person can stand on the cover plate to operate the traditional cover plate is solved, and the risk of falling of the person from high altitude exists; and in the lifting and hanging process, the cover plate is easy to fall off due to the insecure hanging of the lifting hook, and the problem that personnel are injured by a crashing object and bruised is caused due to falling objects at high altitude.

(2) The problem of traditional apron area is big, current and overhaul the narrow and small operation area around the hoist and mount mouth is solved.

(3) The problem of lower floor equipment and environmental pollution caused by coal conveying trestle pulverized coal and dust leakage due to unsealed gaps of the hoisting openings is solved.

(4) The problems that operation is time-consuming and labor-consuming before and after hoisting operation, labor intensity is high, working efficiency is low, dangerousness is high, and use is unreliable are solved.

When the hoist and mount operation after reforming transform, only need take off alone behind the apron locating pin, one hand is pulled one and is pushed away and can easily realize opening and closing function of the sealed apron of hoist and mount mouth, meets the hoist and mount mouth that operating space is narrow and small, and operating space is saved to the folding function of accessible, safe and reliable, labour saving and time saving improve labor efficiency, and do not have the maintenance cost.

The utility model discloses only need 1 people one hand to pull one through one and push away, roll and collapsible pulley link mechanism can realize opening, closing and folding function of apron through the bearing. Safety risks such as personnel injury, smashing injury and the like caused by high-altitude falling of the cover plate are completely eliminated; the foldable design effectively solves the problem of narrow operation space around the hoisting opening and saves effective space; the longitudinal rail type design solves the problem of environmental pollution caused by the leakage of pulverized coal through the gap of the cover plate, and is time-saving, labor-saving, safe, reliable and practical.

The utility model discloses rational in infrastructure, safe and reliable, convenient operation have thoroughly eradicated personnel or apron high altitude when the hoist and mount operation fall, have collided, injure by crashing safe risks such as injure, have solved the sealed not tight powder environmental pollution problem that leaks of hoist and mount mouth, labour saving and time saving.

Drawings

The present invention will be further described with reference to the accompanying drawings, wherein fig. 1 is a schematic perspective sectional view of the present invention, and fig. 2 is a schematic method and structure diagram of the foldable supporting wheel device.

Detailed Description

A push-pull type foldable sealing cover plate of a coal conveying trestle rail of a thermal power plant is disclosed, as shown in figure 1 and figure 2, the push-pull type foldable sealing cover plate comprises a coal conveying trestle lifting port of the thermal power plant, a channel steel rail 1 with a sealed inner end is arranged on the coal conveying trestle lifting port, a fixed sliding cover plate 2 is hinged with a foldable sliding cover plate 5 through a hinge 4 to form a combined cover plate, two side edges of the fixed sliding cover plate 2 are matched with the channel steel rail 1 through two groups of symmetrical idler wheels 3, a foldable supporting wheel device is hinged on the back surface of the outer end of the fixed sliding cover plate 2, a foldable supporting wheel 12 is driven to fold and unfold through a hinged crank connecting rod 13, symmetrical upright posts 9 are respectively fixedly connected on the back surfaces of two sides of the outer end of the foldable sliding cover plate 5, a supporting wheel 10 matched with the ground of the lifting port is arranged at the lower end of the upright post 9 through a wheel shaft, a push-pull handle 8 is arranged on the front surface of the outer end of the foldable sliding cover plate 5, the positioning ring 15 is arranged on the top surface of the outer end of the channel steel rail 1, the corresponding positioning ring 16 correspondingly matched with the positioning ring 15 is arranged on the front surface of the inner end of the fixed sliding cover plate 2, when the combined cover plate runs to the inner end of the channel steel rail 1, the first positioning pin 17 is inserted into the positioning ring 15 and the corresponding positioning ring 16 to position the combined cover plate, when the fixed sliding cover plate 2 runs to the inner end of the channel steel rail 1, the combined cover plate seals the hoisting port, the hook connected with a hanging chain is arranged at the outer end of the hoisting port and hung on the push-pull handle 8, and the combined cover plate is locked on the hoisting port. Two groups of symmetrical insert rings 7 are respectively fixedly connected to the front surfaces of the fixed sliding cover plate 2 and the foldable sliding cover plate 5, and the supporting pin shafts 6 are respectively matched with the symmetrical insert rings 7 of the insert ring groups to position the unfolded front surface of the combined cover plate. The structure of the foldable supporting wheel device is that the upper end of a supporting leg 11 is hinged on the back of a fixed sliding cover plate 2 through a welding hinge 18, a supporting wheel 12 is arranged at the lower end of the supporting leg 11 through a wheel shaft, one end of a crank connecting rod 13 with a handle 14 is hinged on the back of the fixed sliding cover plate 2 through a hinge seat 19, a crank at the other end of the crank connecting rod is hinged with the supporting leg 11, a horizontal positioning hole and a vertical positioning hole are arranged on the hinge seat 19, a second positioning pin 20 is respectively matched with the horizontal positioning hole and the vertical positioning hole, the extending end of the second positioning pin 20 is respectively matched with the horizontal position and the vertical position of the handle 14, and a foldable roller is positioned at a retracting position or a working position. The structure of the roller 3, the supporting wheel 10 and the supporting wheel 12 is that the wheel shaft is matched with a bearing arranged in a roller shaft hole or the roller 3, the supporting wheel 10 and the supporting wheel 12 are all rolling bearings directly matched and arranged on the wheel shaft. The cover plate structures of the fixed sliding cover plate 2 and the foldable sliding cover plate 5 form a rectangular frame by angle steel, criss-cross support frames are arranged in the rectangular frame to form a base, and a steel plate is fixedly connected to the base.

Claims

1. The utility model provides a coal conveying trestle rail of thermal power factory plug-type collapsible sealed apron, includes the coal conveying trestle hoist and mount mouth of thermal power factory, characterized by: a channel steel track (1) with a sealed inner end is arranged on a hoisting port of a coal conveying trestle, a fixed sliding cover plate (2) is hinged with a foldable sliding cover plate (5) through a hinge (4) to form a combined cover plate, two sides of the fixed sliding cover plate (2) are matched with the channel steel track (1) through two groups of symmetrical idler wheels (3), a foldable supporting wheel device is hinged on the back of the outer end of the fixed sliding cover plate (2), a hinged crank connecting rod (13) drives the foldable supporting wheels (12) to fold and unfold, the back of two sides of the outer end of the foldable sliding cover plate (5) is respectively fixed with symmetrical upright columns (9), a supporting wheel (10) matched with the ground of the hoisting port is arranged at the lower end of each upright column (9) through a wheel shaft, a push-pull handle (8) is arranged on the front of the outer end of the foldable sliding cover plate (5), a positioning ring (15) is arranged on the top surface of the outer end of the channel steel track (1), set up on the front of fixed sliding cover board (2) inner end and the corresponding holding ring (16) of the corresponding complex of holding ring (15), when the combination apron moves the hoist and mount mouth and opens entirely, insert holding ring (15) and correspond in holding ring (16) first locating pin (17), make the combination apron location, when fixed sliding cover board (2) move channel-section steel track (1) inner end, the combination apron seals the hoist and mount mouth, the couple that is setting up the chain sling connection in the hoist and mount mouth outer end articulates on push-and-pull handle (8), with the combination apron locking on the hoist and mount mouth.

2. The push-pull type foldable sealing cover plate for the hoisting port track of the coal conveying trestle of the thermal power plant as claimed in claim 1, which is characterized in that: two groups of symmetrical inserting rings (7) are respectively fixedly connected to the front faces of the fixed sliding cover plate (2) and the foldable sliding cover plate (5), and the supporting pin shafts (6) are respectively matched with the symmetrical inserting rings (7) of the inserting ring groups to position the unfolded front faces of the combined cover plates.

3. The push-pull type foldable sealing cover plate for the hoisting port track of the coal conveying trestle of the thermal power plant as claimed in claim 1, which is characterized in that: the structure of the foldable supporting wheel device is that the upper end of a supporting leg (11) is hinged on the back of a fixed sliding cover plate (2) through a welding hinge (18), a supporting wheel (12) is installed at the lower end of the supporting leg (11) through a wheel shaft, one end of a crank connecting rod (13) with a handle (14) is hinged on the back of the fixed sliding cover plate (2) through a hinge seat (19), a crank at the other end of the crank connecting rod is hinged with the supporting leg (11), a horizontal positioning hole and a vertical positioning hole are formed in the hinge seat (19), a second positioning pin (20) is matched with the horizontal positioning hole and the vertical positioning hole respectively, and the extending end of the second positioning pin (20) is matched with the horizontal position and the vertical position of the handle (14) respectively to enable the foldable roller to be located at a folding position or a working position.

4. The push-pull type foldable sealing cover plate for the hoisting port track of the coal conveying trestle of the thermal power plant as claimed in claim 1, which is characterized in that: the structure of the roller (3), the supporting wheel (10) and the supporting wheel (12) is that the wheel shaft is matched with a bearing arranged in a shaft hole of the roller or the roller (3), the supporting wheel (10) and the supporting wheel (12) are all rolling bearings directly matched and arranged on the wheel shaft.

5. The push-pull type foldable sealing cover plate for the hoisting port track of the coal conveying trestle of the thermal power plant as claimed in claim 1, which is characterized in that: the cover plate structures of the fixed sliding cover plate (2) and the foldable sliding cover plate (5) form a rectangular frame by angle steel, criss-cross support frames are arranged in the rectangular frame to form a base, and steel plates are fixedly connected to the base.