CN112938771A

CN112938771A - Explosion-proof crane

Info

Publication number: CN112938771A
Application number: CN202110156220.3A
Authority: CN
Inventors: 张荆莹; 张绪楠
Original assignee: Tianjin Institute Of Special Equipment Supervision And Inspection Technology (tianjin Special Equipment Accident Emergency Investigation And Treatment Center)
Current assignee: Tianjin Institute Of Special Equipment Supervision And Inspection Technology (tianjin Special Equipment Accident Emergency Investigation And Treatment Center)
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-06-11

Abstract

The invention discloses an explosion-proof crane which comprises two counterweight plates, two support frames and two guide plates, wherein the two counterweight plates are fixedly provided with the support frames, the upper ends of the support frames are fixedly provided with guide seats, the guide seats are provided with two roller grooves, the outer sides of the guide seats are provided with moving frames, the front ends and the rear ends of the moving frames are provided with motors, the output ends of the motors are provided with rotating shafts, the rotating shafts penetrate through the moving frames and are connected with guide wheels, the rotating shafts are rotatably connected with the moving frames, the guide wheels are in rolling fit with the roller grooves, and the lower ends of the moving frames are provided with explosion-proof electric hoists. According to the invention, through the sliding connection between the sliding rod and the two supporting frames, the matching of the sliding seat and the sliding rod and the installation of the lifting hook on the fixing plate at the lower end of the sliding seat, the fixing of the lifting hook is facilitated, and the lifting hook does not shake in the lifting process, so that the lifting hook is prevented from shaking to accidentally injure workers.

Description

Explosion-proof crane

Technical Field

The invention relates to the technical field of cranes, in particular to an explosion-proof crane.

Background

At present, along with the development of economy, the explosion-proof crane in China has mature technology in bridge type and beam type cranes, and the explosion-proof crane, namely the explosion-proof electric hoist crane, is a crane taking an explosion-proof electric hoist as a hoisting mechanism.

The existing explosion-proof crane needs to move the heavy object left and right after lifting the heavy object, but the hook is easy to shake in the moving process, the heavy object is easy to touch a worker, a self-locking device is absent after the movement is stopped, and the automatic movement is easy to occur, so that the heavy object accidentally injures the worker. Therefore, an explosion-proof crane is proposed to solve the above problems.

Disclosure of Invention

The invention aims to provide an explosion-proof crane to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an explosion-proof crane comprises two weight plates, two support frames and guide plates, wherein the two weight plates are fixedly provided with the support frames, the upper ends of the support frames are fixedly provided with guide seats, the guide seats are provided with two roller grooves, the outer sides of the guide seats are provided with moving frames, the front ends and the rear ends of the moving frames are provided with motors, the output ends of the motors are provided with rotating shafts, the rotating shafts penetrate through the moving frames and are connected with guide wheels, the rotating shafts are rotatably connected with the moving frames, the guide wheels are in rolling fit with the roller grooves, the lower ends of the moving frames are provided with explosion-proof electric hoists, steel ropes are connected inside the explosion-proof electric hoists, the lower ends of the steel ropes are connected with slide seats, the slide seats are slidably connected on slide rods, the slide rods are slidably connected between the two support frames, the lower ends of the slide seats are fixedly, the explosion-proof electric hoist is characterized in that a self-locking mechanism is arranged at the upper end of the inner side of the moving frame, a storage battery is fixed at the upper end of the outer side of the moving frame, the storage battery is respectively electrically connected with the self-locking mechanism, the explosion-proof electric hoist and the motor, a switch assembly is arranged on the supporting frame, and the switch assembly is electrically connected with the storage battery.

As a further scheme of the invention: the slide bar both ends are fixed with protruding type slider, two protruding type spout has been seted up on the support frame, protruding type slider and protruding type spout sliding connection.

As a further scheme of the invention: the self-locking mechanism comprises a sleeve, a moving rod, a spring and an electromagnetic magnet, the sleeve is fixed at the upper end of the inner side of the moving frame, the moving rod is connected in the sleeve in a sliding mode, the lower end of the moving rod is fixed with the electromagnetic magnet, a reset spring is fixed between the upper end of the moving rod and the inner top wall of the sleeve, and the electromagnetic magnet is electrically connected with the storage battery.

As a further scheme of the invention: and a third magnet is embedded at the upper end of the guide seat and below the electromagnetic magnet.

As a further scheme of the invention: the fixed plate is fixed with a first sleeve, the lifting hook is fixed with a second sleeve, the first sleeve and the second sleeve are in splicing fit, a first magnet is fixed in the first sleeve, and a second magnet matched with the first magnet is fixed in the second sleeve.

As a further scheme of the invention: the outer diameter of the first sleeve is smaller than the inner diameter of the second sleeve, and the first sleeve and the second sleeve are in transition fit.

As a further scheme of the invention: and the upper ends of the two support frames are respectively fixed with a fixed rod, and the upper ends of the fixed rods are fixed with a waterproof shed.

As a further scheme of the invention: the mounting frame is installed to the upper end of counterweight plate, the internally mounted of mounting frame has electric putter, electric putter's expansion end is connected with the universal wheel, counterweight plate just is located universal wheel department and has seted up logical groove.

Compared with the prior art, the invention has the beneficial effects that: firstly, the slide rod is connected with the two supporting frames in a sliding way, the slide seat is matched with the slide rod, the lifting hook is arranged on a fixing plate at the lower end of the slide seat, the lifting hook is convenient to fix, and the lifting hook cannot shake in the lifting process, thereby avoiding the accidental injury of workers due to the swinging of the lifting hook, when the lifting hook is lifted to a certain height, the storage battery supplies power to the motor through the switch assembly, the motor drives the rotating shaft to rotate and drives the guide wheel to roll in the roller groove on the guide seat, the left and right movement of the heavy object is realized, and when the heavy object moves to a designated position, the motor is turned off, the storage battery is electrified to the electromagnetic attracting iron in the self-locking mechanism through the switch assembly, the electromagnetic attracting iron generates magnetism after being electrified and is attracted with the third magnet at the upper end of the guide seat, the guide seat, the electromagnetic magnet, the moving rod, the sleeve, the reset spring and the moving frame are fixed together, so that the guide wheel rolls to indirectly drive the lifting hook to move, and workers are prevented from being injured by mistake; secondly, the second sleeve is fixed on the lifting hook, and is in transition splicing fit with the first sleeve on the fixing plate through the second sleeve and the attraction fit of the first magnet and the second magnet, so that the lifting hook is indirectly fixed on the sliding seat, and meanwhile, the lifting hook with different types can be conveniently replaced, so that users can conveniently lift different types of heavy objects, and the comprehensiveness of the lifting hook is improved; thirdly, the waterproof shed is arranged to prevent rainwater from contacting electrical appliances on the explosion-proof crane in rainy days to damage the electrical appliances, and meanwhile, the explosion-proof crane is prevented from rusting and is inconvenient to use later; and fourthly, the universal wheel is adjusted through the electric push rod to penetrate through the through groove in the counterweight plate, the universal wheel is contacted with the ground, the flexible movement of the explosion-proof crane is realized through the universal wheel, a user can flexibly use the explosion-proof crane, when the explosion-proof crane is moved to a proper place, the universal wheel is adjusted through the electric push rod to penetrate through the through groove and is recovered into the counterweight plate, and the counterweight plate provides stable support for the explosion-proof crane.

Drawings

Fig. 1 is a schematic structural diagram of an explosion-proof crane.

FIG. 2 is a schematic side view of a movable frame and a guide seat of an explosion-proof crane.

Fig. 3 is a schematic structural diagram of a self-locking mechanism in an explosion-proof crane.

Fig. 4 is an enlarged schematic view of a structure at a position a in an explosion-proof crane.

Fig. 5 is a schematic structural diagram of a guide seat in an explosion-proof crane.

FIG. 6 is a schematic structural diagram of a slide rod in an explosion-proof crane.

In the figure: 1-counterweight plate, 2-support frame, 3-guide seat, 31-roller groove, 4-moving frame, 5-explosion-proof electric hoist, 6-steel rope, 7-slide seat, 8-slide rod, 9-fixing plate, 10-first sleeve, 11-first magnet, 12-second sleeve, 13-second magnet, 14-hook, 15-motor, 16-rotating shaft, 17-guide wheel, 18-self-locking mechanism, 181-sleeve, 182-moving rod, 183-electromagnetic iron-attracting, 184-reset spring, 19-storage battery, 20-third magnet, 21-convex slide block, 22-convex slide groove, 23-switch assembly, 24-water-proof shed, 25-mounting frame, 26-electric push rod, 27-universal wheel, 28-fixing the bar.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper end", "lower end", "outer side", "inner side", "front and rear end", "lower side", "both ends", and the like, indicate orientations or positional relationships based on the orientation or positional relationships illustrated in the drawings, are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "mounted," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, releasably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1:

with reference to fig. 1-6, an explosion-proof crane comprises a weight plate 1, a support frame 2 and guide plates, wherein the weight plate 1 is provided with two weight plates, two weight plates 1 are fixed with the support frame 2, the upper end of the support frame 2 is fixed with a guide seat 3, two roller grooves 31 are arranged on the guide seat 3, a movable frame 4 is arranged outside the guide seat 3, a motor 15 is installed at the front end and the rear end of the movable frame 4, a rotating shaft 16 is installed at the output end of the motor 15, the rotating shaft 16 penetrates through the movable frame 4 and is connected with a guide wheel 17, the rotating shaft 16 is rotatably connected with the movable frame 4, the guide wheel 17 is in rolling fit with the roller grooves 31, an explosion-proof electric hoist 5 is installed at the lower end of the movable frame 4, the steel rope 6 is connected inside the explosion-proof electric hoist 5, the lower end of the steel rope 6 is connected with, the utility model discloses a safety device for explosion-proof electric hoist, including slide bar 8, slide 7, fixed plate 9, swing joint has lifting hook 14 on the fixed plate 9, the inboard upper end of removal frame 4 is provided with self-locking mechanism 18, the outside upper end of removal frame 4 is fixed with battery 19, battery 19 respectively with self-locking mechanism 18, explosion-proof electric hoist 5 and motor 15 electric connection, be provided with switch assembly 23 on the support frame 2, switch assembly 23 and battery 19 electric connection, self-locking mechanism 18 includes sleeve 181, carriage bar 182, spring and electromagnetism magnet 183, sleeve 181 is fixed in the inboard upper end of removal frame 4, sliding connection has carriage bar 182 in sleeve 181, the lower extreme of carriage bar 182 is fixed with electromagnetism magnet 183, be fixed with reset spring 184 between carriage bar 182 upper end and the interior roof of sleeve 181, the electromagnetic magnet 183 is electrically connected with the storage battery 19, and a third magnet 20 is embedded in the upper end of the guide seat 3 and below the electromagnetic magnet 183.

Specifically, through the sliding connection between the slide rod 8 and the two support frames 2, and through the matching of the slide base 7 and the slide rod 8 and the installation of the hook 14 on the fixing plate 9 at the lower end of the slide base 7, the fixing of the hook 14 and the shaking of the hook 14 in the lifting process are facilitated, so that the situation that the hook 14 shakes to injure workers by mistake is avoided, after the hook is hung to a certain height, the storage battery 19 supplies power to the motor 15 through the switch assembly 23, the motor 15 drives the rotating shaft 16 to rotate and drives the guide wheel 17 to roll in the roller groove 31 on the guide base 3, the left and right movement of a heavy object is realized, when the hook moves to a specified position, the motor 15 is turned off, the storage battery 19 supplies power to the electromagnetic magnet 183 in the self-locking mechanism 18 through the switch assembly 23, the electromagnetic magnet 183 generates magnetism after the electromagnetic magnet 183 is powered on and is attracted to the third magnet 20 at, The moving rod 182, the sleeve 181, the return spring 184 and the moving frame 4 are fixed together, so as to avoid the guide wheel 17 rolling itself to indirectly drive the hook 14 to move and hurt the staff.

The two ends of the sliding rod 8 are fixed with convex sliding blocks 21, the two supporting frames 2 are provided with convex sliding grooves 22, the convex sliding blocks 21 are connected with the convex sliding grooves 22 in a sliding mode, the sliding connection between the convex sliding blocks 21 and the convex sliding grooves 22 not only limits the movement of the sliding rod 8, but also ensures the smooth and stable upward movement of the sliding rod 8.

Be fixed with first sleeve pipe 10 on the fixed plate 9, be fixed with second sleeve pipe 12 on the lifting hook 14, first sleeve pipe 10 and the cooperation of pegging graft of second sleeve pipe 12, and first sleeve pipe 10 internal fixation have first magnet 11, second sleeve pipe 12 internal fixation have with first magnet 11 matched with second magnet 13, the external diameter of first sleeve pipe 10 is less than the internal diameter of second sleeve pipe 12, and first sleeve pipe 10 and second sleeve pipe 12 transition fit.

Specifically, the second sleeve 12 is fixed on the lifting hook 14, the second sleeve 12 is in transition insertion fit with the first sleeve 10 on the fixing plate 9, the first magnet 11 is in attraction fit with the second magnet 13, the lifting hook 14 is indirectly fixed on the sliding seat 7, meanwhile, the lifting hooks 14 of different models are convenient to replace, a user can conveniently lift heavy objects of different types, and comprehensiveness of the lifting hook is improved.

Two the upper end of support frame 2 all is fixed with dead lever 28, the upper end of dead lever 28 is fixed with waterproof shed 24, avoids the rainy day rainwater and this explosion-proof crane on with electrical apparatus contact through setting up waterproof shed 24, leads to damaging with electrical apparatus, keeps away simultaneously that the face should explosion-proof crane rust, inconvenient later stage use.

Example 2:

with reference to fig. 1, this embodiment further defines the present invention on the basis of embodiment 1.

Installing frame 25 is installed to the upper end of weight plate 1, the internally mounted of installing frame 25 has electric putter 26, electric putter 26's expansion end is connected with universal wheel 27, weight plate 1 just is located universal wheel 27 department and has seted up logical groove.

Concretely, adjust universal wheel 27 through electric putter 26 and pass the logical groove on the weight plate 1 to with the ground contact, realize the nimble removal of this explosion-proof crane through universal wheel 27, convenient to use person uses this explosion-proof crane in a flexible way, when removing to suitable place, rethread electric putter 26 adjusts universal wheel 27 and passes logical groove, and retrieve to in the weight plate 1, give this explosion-proof crane stability through weight plate 1 and support.

The working principle is as follows: through the sliding connection between the sliding rod 8 and the two support frames 2, the sliding seat 7 is matched with the sliding rod 8, and the lifting hook 14 is arranged on the fixing plate 9 at the lower end of the sliding seat 7, so that the fixing of the lifting hook 14 and the shaking of the lifting hook 14 can be facilitated, the situation that workers are accidentally injured due to the shaking of the lifting hook 14 can be avoided, after the lifting hook is lifted to a certain height, the storage battery 19 supplies power to the motor 15 through the switch assembly 23, the motor 15 drives the rotating shaft 16 to rotate and drives the guide wheel 17 to roll in the roller groove 31 on the guide seat 3, the left and right movement of a heavy object is realized, when the lifting hook moves to a specified position, the motor 15 is turned off, the storage battery 19 supplies power to the electromagnetic magnet 183 in the self-locking mechanism 18 through the switch assembly 23, the electromagnetic magnet 183 generates magnetism after the electromagnetic magnet 183 is powered on and is attracted with the, The moving rod 182, the sleeve 181, the return spring 184 and the moving frame 4 are fixed together, so as to avoid the guide wheel 17 rolling itself to indirectly drive the hook 14 to move and hurt the staff.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an explosion-proof crane, includes counterweight plate (1), support frame (2) and deflector, its characterized in that, counterweight plate (1) is provided with two, two be fixed with support frame (2) on counterweight plate (1), support frame (2) upper end is fixed with guide holder (3), two gyro wheel grooves (31) have been seted up on guide holder (3), the guide holder (3) outside is provided with removes frame (4), motor (15) are installed to the front and back end of removing frame (4), pivot (16) are installed to the output of motor (15), pivot (16) run through and remove frame (4) and are connected with leading wheel (17), and pivot (16) are connected with removing frame (4) rotation, leading wheel (17) and gyro wheel groove (31) roll cooperation, explosion-proof electric block (5) are installed to the lower extreme of removing frame (4), the internal connection of explosion-proof electric block (5) has steel cable (6), the lower extreme of steel cable (6) is connected with slide (7), slide (7) sliding connection is on slide bar (8), slide bar (8) sliding connection is between two support frames (2), slide (7) lower extreme is fixed with fixed plate (9), swing joint has lifting hook (14) on fixed plate (9), the inboard upper end of removing frame (4) is provided with self-locking mechanism (18), the outside upper end of removing frame (4) is fixed with battery (19), battery (19) respectively with self-locking mechanism (18), explosion-proof electric block (5) and motor (15) electric connection, be provided with switch assembly (23) on support frame (2), switch assembly (23) and battery (19) electric connection.

2. An explosion-proof crane according to claim 1, characterized in that the two ends of the slide bar (8) are fixed with convex sliding blocks (21), the two support frames (2) are provided with convex sliding grooves (22), and the convex sliding blocks (21) are slidably connected with the convex sliding grooves (22).

3. The explosion-proof crane according to claim 2, wherein the self-locking mechanism (18) comprises a sleeve (181), a moving rod (182), a spring and an electromagnetic iron absorber (183), the sleeve (181) is fixed at the upper end of the inner side of the moving frame (4), the moving rod (182) is connected in the sleeve (181) in a sliding manner, the electromagnetic iron absorber (183) is fixed at the lower end of the moving rod (182), a return spring (184) is fixed between the upper end of the moving rod (182) and the inner top wall of the sleeve (181), and the electromagnetic iron absorber (183) is electrically connected with the storage battery (19).

4. An explosion-proof crane as claimed in claim 3, characterized in that a third magnet (20) is embedded at the upper end of the guide base (3) and below the electromagnet (183).

5. An explosion-proof crane according to claim 1, characterized in that a first sleeve (10) is fixed on the fixing plate (9), a second sleeve (12) is fixed on the hook (14), the first sleeve (10) and the second sleeve (12) are in plug-in fit, a first magnet (11) is fixed in the first sleeve (10), and a second magnet (13) matched with the first magnet (11) is fixed in the second sleeve (12).

6. An explosion-proof crane according to claim 5, characterized in that the outer diameter of the first casing (10) is smaller than the inner diameter of the second casing (12), and the first casing (10) and the second casing (12) are transition-fitted.

7. An explosion-proof crane as claimed in claim 1, characterized in that the upper ends of the two supporting frames (2) are fixed with fixing rods (28), and the upper ends of the fixing rods (28) are fixed with waterproof sheds (24).

8. The explosion-proof crane according to claim 1, wherein an installation frame (25) is installed at the upper end of the counterweight plate (1), an electric push rod (26) is installed inside the installation frame (25), a universal wheel (27) is connected to the movable end of the electric push rod (26), and a through groove is formed in the counterweight plate (1) and located at the universal wheel (27).