Auxiliary locking device for skip bucket of vertical shaft multi-rope elevator

Abstract

The utility model discloses an auxiliary locking device for a skip bucket of a vertical shaft multi-rope hoister, which is characterized in that a bucket door locking mechanism is arranged at a bucket opening at the lower part of the skip bucket and comprises a locking support, a lock hook, a lock body, a driving piece, a protective shell and an in-place detector, the lock hooks are fixedly arranged at the lower end of the bucket door, the locking support is fixedly arranged on the outer bottom face of a bucket opening corresponding to the lock hooks, the lock body is arranged on the lower middle portion of the locking support through a pin shaft, the lock body rotates on the locking support through the pin shaft, and the protective shell is arranged on the outer bottom face, behind the locking support, of the bucket. A driving piece for driving the lock body to rotate is arranged in the protective shell, and the in-place detector is arranged on the upper portion of the locking support. According to the utility model, the locking state of the bucket door can be detected in real time, and a fault alarm can be given out in time, so that equipment and facility damage accidents caused by ore falling into a shaft due to the fact that the bucket door of the vertical shaft multi-rope hoisting skip bucket is not closed are effectively avoided, the safety risk of operating personnel is effectively reduced, and the safety production efficiency of equipment is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vertical shaft multi-rope hoists or material conveying, in particular to an auxiliary locking device for a bucket of a vertical shaft multi-rope hoist. Background Art

[0002] The multi-rope hoist is a commonly used transportation equipment in the vertical shaft of the mining industry. However, it was found in the long-term use that the bucket was disturbed by factors such as ore vibration. During the ore lifting process, the bucket door was not closed and locked many times, and the bucket door closing system could not detect the locking state of the bucket door, resulting in a large amount of ore falling into the shaft, causing damage to the equipment and communication cables in the shaft to prevent accidents. The frequency of shutdown maintenance is too high, which is not conducive to safe production and improving production efficiency. Therefore, the development of a device for assisting the locking of the bucket door is the key to solving the problem. Utility Model Content

[0003] The utility model provides an auxiliary locking device for a vertical shaft multi-rope hoist bucket.

[0004] The utility model is realized through the following technical scheme: it comprises a bucket and a bucket gate, a bucket gate locking mechanism is arranged at the bucket mouth at the lower part of the bucket, and the bucket gate locking mechanism is symmetrically arranged on both sides of the bucket mouth, the bucket gate locking mechanism comprises a locking support, a lock hook, a lock body, a driving member, a protective shell, and an in-place detector, the lock hook is fixedly arranged at the lower end of the bucket gate, the locking support is fixedly arranged on the outer bottom surface of the bucket mouth corresponding to each lock hook, a lock body is arranged at the lower part of the locking support through a pin shaft, the lock body rotates on the locking support through the pin shaft, a protective shell is arranged on the outer bottom surface of the bucket behind the locking support, a driving member for driving the lock body to rotate is arranged in the protective shell, and the in-place detector is arranged on the upper part of the locking support and is located at the rear side of the locking support.

[0005] Furthermore, the lock body includes a lock body, a lock tongue, and a shift fork. The front end of the lock body is provided with a lock tongue connected thereto in an L-shaped structure, and the rear end of the lock body is provided with a shift fork connected thereto in a T-shaped structure. The lock body, the lock tongue and the shift fork are an integrally formed structure. The rear section of the lock body is provided with an axial hole matched with the pin shaft, and the weight of the front end of the lock body is greater than the weight of the rear section of the lock body.

[0006] Furthermore, an auxiliary detector is provided at the lower part of the groove of the locking support, and the auxiliary detector is connected to the groove of the locking support through an installation sleeve. A buffer sleeve is provided in the installation sleeve to protect the auxiliary detector, and a limit ring is provided at the mouth of the installation sleeve to prevent it from falling off.

[0007] The beneficial effects of the utility model are: the utility model has a simple structure, is easy to use and operate, and has safe and reliable detection and auxiliary locking. By improving the existing hopper door, the improvement process will not cause damage to the hopper door and the skip. The locking state of the hopper door can be detected in real time, and a fault alarm can be issued immediately, effectively preventing the hopper door of the multi-rope hoisting skip in the vertical shaft from not being closed, causing ore to fall into the shaft, and causing damage to equipment and facilities. This not only effectively reduces the safety risks of operators, but also improves the safety production efficiency of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 It is a structural schematic diagram of the bucket door locking mechanism;

[0010] Figure 3 It is a structural schematic diagram of the lock body and the locking support;

[0011] Figure 4 It is a structural schematic diagram of the lock body;

[0012] Figure 5 It is a schematic diagram of the position structure of the lock hook on the bucket door;

[0013] Figure 6 This is a reference diagram of the use state of the utility model;

[0014] Figure 7 This is a structural schematic diagram of another implementation mode of the utility model;

[0015] Numbers in the figure: 1~ bucket, 2~ bucket door, 3~ bucket door locking mechanism, 4~ locking support, 5~ lock hook, 6~ lock body, 6a~ lock body, 6b~ lock tongue, 6c~ fork, 7~ driving member, 8~ protective shell, 8a~ metal shell, 8b~ buffer layer, 8c~ protective layer, 9~ in-place detector, 10~ buffer sleeve, 11~ auxiliary detector, 12~ installation sleeve, 13~ limit ring, 14~ ear plate, 15~ fixing bolt, 16~ screw hole, 17~ spring. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the utility model, its specific implementation method is described in detail below with reference to the accompanying drawings.

[0017] like Figures 1 to 6The auxiliary locking device of the vertical shaft multi-rope hoist bucket shown includes a bucket 1 and a bucket gate 2. A bucket gate locking mechanism 3 is arranged at the bucket mouth of the lower part of the bucket 1, and the bucket gate locking mechanism 3 is symmetrically arranged on both sides of the bucket mouth. The bucket gate locking mechanism 3 includes a locking support 4, a lock hook 5, a lock body 6, a driving member 7, a protective shell 8, and an in-place detector 9. The lock hook 5 is fixedly arranged at the lower end of the bucket gate 2. The locking support 4 is fixedly arranged on the outer bottom surface of the bucket mouth corresponding to each lock hook 5. A lock body 6 is arranged in the lower part of the locking support 4 through a pin shaft, and the lock body 6 rotates on the locking support 4 through the pin shaft. A protective shell 8 is arranged on the outer bottom surface of the bucket 1 behind the locking support 4, and a driving member 7 for driving the lock body 6 to rotate is arranged in the protective shell 8. The in-place detector 9 is arranged on the upper part of the locking support 4 and is located on the rear side of the locking support 4.

[0018] The lock body 6 includes a lock body 6a, a lock tongue 6b, and a shift fork 6c. The front end of the lock body 6a is provided with a lock tongue 6b connected thereto in an L-shaped structure, and the rear end of the lock body 6a is provided with a shift fork 6c connected thereto in a T-shaped structure. The lock body 6a, the lock tongue 6b and the shift fork 6c are integrally formed. The rear section of the lock body 6a is provided with an axial hole matched with the pin shaft, and the weight of the front end of the lock body 6a is greater than the weight of the rear section of the lock body 6a to ensure that the lock body 6a can rotate and droop under the action of gravity.

[0019] The inner side of the locking tongue 6b is provided with a protrusion, and the shift fork 6c is provided in an L-shaped structure.

[0020] The locking support 4 is arranged in a concave structure, and a countersunk hole is provided on the upper rear side of the locking support 4, an in-place detector 9 is arranged in the countersunk hole, and a buffer sleeve 10 is provided between the two. The buffer sleeve 10 is made of rubber or foam. In order to prevent the in-place detector 9 from falling off and increase the stability in the countersunk hole, a limit stop ring 13 is provided at the mouth of the countersunk hole. The limit stop ring 13 is connected with the countersunk hole thread. For easy disassembly and assembly, the through hole of the limit stop ring 13 is arranged in a regular polygon structure.

[0021] An auxiliary detector 11 is provided at the lower part of the groove of the locking support 4, and the auxiliary detector 11 is connected to the groove of the locking support 4 through an installation sleeve 12. A buffer sleeve 10 is provided in the installation sleeve 12 to protect the auxiliary detector 11, and a limit ring 13 is provided at the mouth of the installation sleeve 12 to prevent it from falling off.

[0022] Furthermore, the in-place detector 9 and the auxiliary detector 11 are position sensors.

[0023] The driving member 7 is a cylinder, a hydraulic cylinder or an electric push rod, and the free end of the cylinder, the hydraulic cylinder or the electric push rod points to the shift fork 6 c of the lock body 6 .

[0024] The protective shell 8 includes a metal shell 8a, and a buffer layer 8b and a protective layer 8c which are arranged inside the metal shell 8a in sequence. The driving member 7 is arranged inside the protective layer 8c. The protective shell 8 is fixed on the outer bottom surface of the bucket mouth. A through hole for the driving member 7 to pass through is provided at the front end of the protective shell 8, and an anti-falling rear cover is provided at the rear end. The rear cover is connected to the protective shell 8 by a buckle or bolts.

[0025] Ear plates 14 are respectively arranged on the two side walls of the protective shell 8, and fixing bolts 15 are arranged on the ear plates 14. Screw holes 16 matching the fixing bolts 15 are arranged on the outer bottom surface of the bucket mouth, and springs 17 are arranged on the fixing bolts 15 between the ear plates 14 and the screw holes 16 for shock absorption.

[0026] Furthermore, in order to ensure the stability of the connection, the screw hole 16 matched with the fixing bolt 15 is selected as a nut, and the nut is welded on the outer bottom surface of the bucket mouth.

[0027] It also includes a controller, which is a single-chip microcomputer, which is electrically connected to the main control device of the vertical shaft multi-rope hoist, and the corresponding position detector and auxiliary detector 11 are installed on the main control device and a warning light is provided. The lighting mode of the warning light is always on, flashing, or always on + flashing. A control switch button is set corresponding to the drive component 7, and the controller is electrically connected to the position detector 9, the auxiliary detector 11, and the drive component 7.

[0028] As another embodiment, the protective shell 8 is welded and fixed to the outer bottom surface of the bucket mouth of the bucket 1 to ensure the stability of the connection to solve the problem of frequent checks on the connection stability due to vibration.

[0029] like Figure 7 As shown, as another embodiment, the driving member 7 is an electromagnetic switch, which is arranged in the protective shell 8 and is located at the lower left of the fork 6c. The protective shell 8 is connected to the bucket 1 through a support, and the support is welded and fixed to the bucket 1. The rotation of the lock body 6 is controlled by the opening and closing of the electromagnetic switch, so as to realize the locking and unlocking states of the lock tongue 6b and the lock hook 5; specifically, the electromagnetic switch is powered on and started, one end of the adsorption fork 6c rotates and droops, and the lock tongue 6b rotates upward and locks with the lock hook 5, and the electromagnetic switch is powered off and closed, one end of the adsorption fork 6c rotates upward, and the lock tongue 6b rotates and droops to disengage from the lock hook 5.

[0030] Working mode of the utility model:

[0031] 1. Under normal circumstances, the bucket door 2 and the bucket mouth of the bucket 1 are in a locked state, that is, the free end of the driving member 7 is in an extended state, that is, the free end is extended to push on the fork 6c of the lock body 6, so that the lock tongue 6b of the lock body 6 rotates upward and presses on the outer side of the lock hook 5. At this time, the in-place detector 9 cannot detect the fork 6c, and the corresponding warning light is turned off, while the auxiliary detector 11 detects the fork 6c, and the corresponding warning light is on;

[0032] 2. When it is necessary to open the bucket door 2 to unload the materials in the bucket 1, first start the free end of the driving member 7 to retract and return to its original position, the fork 6c of the lock body 6 loses its thrust, and the lock body 6 rotates and droops under the action of gravity to break away from the lock hook 5, and then start the bucket door 2 driver to open the bucket door 2 to unload the materials; during this process, the in-place detector 9 detects the fork 6c, and the corresponding warning light is on, while the auxiliary detector 11 cannot detect the fork 6c, and the corresponding warning light is off; in the above process, if the warning light of the in-place detector 9 is off, and the warning light of the auxiliary detector 11 is not on, it indicates that the bucket door 2 is not completely locked, otherwise it indicates that the bucket door 2 is not completely opened, and the locking state of the bucket door 2 needs to be checked;

[0033] Repeating steps 1 and 2 in this way can ensure the locking and opening of the bucket door 2 and the bucket 1 to solve the situation of loose locking or unlocking.

Claims

1. A vertical shaft multi-rope hoist bucket auxiliary locking device, comprising a bucket (1) and a bucket door (2), a bucket door locking mechanism (3) is arranged at the bucket mouth at the bottom of the bucket (1), and the bucket door locking mechanism (3) is symmetrically arranged on both sides of the bucket mouth, characterized in that: The bucket door locking mechanism (3) comprises a locking support (4), a lock hook (5), a lock body (6), a driving member (7), a protective shell (8), and an in-position detector (9). The lock hook (5) is fixedly arranged at the lower end of the bucket door (2); the locking support (4) is fixedly arranged on the outer bottom surface of the bucket mouth corresponding to each lock hook (5); a lock body (6) is arranged at the middle and lower part of the locking support (4) through a pin shaft; the lock body (6) rotates on the locking support (4) through the pin shaft; a protective shell (8) is arranged on the outer bottom surface of the bucket (1) behind the locking support (4); a driving member (7) for driving the lock body (6) to rotate is arranged in the protective shell (8); and the in-position detector (9) is arranged at the upper part of the locking support (4) and is located at the rear side of the locking support (4).

2. The auxiliary locking device for the bucket of a vertical shaft multi-rope hoist according to claim 1 is characterized in that: The lock body (6) comprises a lock body (6a), a lock tongue (6b), and a shift fork (6c); the front end of the lock body (6a) is provided with a lock tongue (6b) connected thereto in an L-shaped structure; the rear end of the lock body (6a) is provided with a shift fork (6c) connected thereto in a T-shaped structure; the lock body (6a), the lock tongue (6b), and the shift fork (6c) are provided as an integrally formed structure; the rear section of the lock body (6a) is provided with an axial hole matched with a pin shaft; and the weight of the front end of the lock body (6a) is greater than the weight of the rear section of the lock body (6a).

3. The auxiliary locking device for the bucket of a vertical shaft multi-rope hoist according to claim 2 is characterized in that: A protrusion is provided on the inner side of the lock tongue (6b), and the shift fork (6c) is arranged in an L-shaped structure.

4. The auxiliary locking device for the bucket of a vertical shaft multi-rope hoist according to claim 1 is characterized in that: The locking support (4) is arranged in a concave structure, a countersunk hole is arranged on the upper rear side of the locking support (4), an in-position detector (9) is arranged in the countersunk hole, and a buffer sleeve (10) is arranged between the two, and the material of the buffer sleeve (10) is rubber or foam.

5. The auxiliary locking device for the bucket of a vertical shaft multi-rope hoist according to claim 1 or 4, characterized in that: An auxiliary detector (11) is provided at the lower part of the groove of the locking support (4), and the auxiliary detector (11) is connected to the groove of the locking support (4) via a mounting sleeve (12). A buffer sleeve (10) is provided in the mounting sleeve (12) to protect the auxiliary detector (11), and a limit stop ring (13) is provided at the mouth of the mounting sleeve (12).

6. The auxiliary locking device for the bucket of a vertical shaft multi-rope hoist according to claim 1, characterized in that: The driving member (7) is a cylinder, a hydraulic cylinder or an electric push rod, and the free end of the cylinder, the hydraulic cylinder or the electric push rod points to the shift fork (6c) of the lock body (6).

7. The auxiliary locking device for the bucket of a vertical shaft multi-rope hoist according to claim 1, characterized in that: The protective shell (8) comprises a metal shell (8a), and a buffer layer (8b) and a protective layer (8c) which are arranged in sequence inside the metal shell (8a); the driving member (7) is arranged inside the protective layer (8c); the protective shell (8) is fixed to the outer bottom surface of the bucket mouth; a through hole for the driving member (7) to pass through is provided at the front end of the protective shell (8); and a rear cover to prevent falling off is provided at the rear end; the rear cover is connected to the protective shell (8) by buckles or bolts.

8. The auxiliary locking device for the bucket of a vertical shaft multi-rope hoist according to claim 7, characterized in that: Ear plates (14) are respectively arranged on the two side walls of the protective shell (8), and fixing bolts (15) are arranged on the ear plates (14). Screw holes (16) matching the fixing bolts (15) are arranged on the outer bottom surface of the bucket mouth, and a spring (17) is arranged on the fixing bolts (15) between the ear plates (14) and the screw holes (16).

9. The auxiliary locking device for the bucket of a vertical shaft multi-rope hoist according to claim 1, characterized in that: The driving member (7) is an electromagnetic switch, which is arranged in the protective housing (8) and above the shift fork (6c).

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