CN216918434U

CN216918434U - Emergency braking mechanism for cage lifting machine

Info

Publication number: CN216918434U
Application number: CN202123338692.5U
Authority: CN
Inventors: 冉卫红
Original assignee: Zhengzhou Huixinyuan Mining Machinery Co ltd
Current assignee: Zhengzhou Huixinyuan Mining Machinery Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-07-08
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses an emergency braking mechanism for a cage lifter, which comprises a brake disc sleeved on a main shaft of the lifter, wherein the lifter comprises two mounting plates rotatably connected with two ends of the main shaft, the upper end and the lower end of each mounting plate are respectively provided with a support plate, the brake disc is positioned between the two support plates, a screw rod is arranged between the two support plates, two ends of the screw rod are respectively rotatably connected with the two support plates, the support plates are provided with motors for driving the screw rod to rotate, the screw rod is sleeved with a speed reducing piece in threaded connection with the screw rod, and the speed reducing piece can be close to or far away from the brake disc through the rotation of the screw rod. In the utility model, the screw rod can be driven to rotate by the arranged motor, the screw rod can drive the speed reduction sheet which is in threaded connection with the screw rod to be close to the brake disc by the rotation of the screw rod, and the brake disc is pressed tightly, so that the main shaft is gradually reduced, and the aim of braking the cage lifter is fulfilled.

Description

Emergency braking mechanism for cage lifting machine

Technical Field

The utility model relates to the field of mining industry, in particular to an emergency braking mechanism for a cage lifter.

Background

The cage lifter is a lifting machine which is arranged on the ground in mining engineering and drives a cage to run along a shaft or a slope by means of a twisted rope. The lifting device is used for lifting coal, ores and gangue, lifting personnel, lowering materials, tools, equipment and the like in vertical shafts and inclined shafts. Cage lifting machine includes the stopper, and the effect of stopper is: when the hoister works, the roller wound with the twisted rope can be reliably braked; participating in the control of the hoister in the deceleration stage and during weight lowering; in case of emergency, the elevator can be braked safely and stopped quickly, so that the expansion of accidents is avoided.

The braking device of some small-sized elevators adopts a hand wheel to perform manual braking, can meet the use requirements under the working conditions of low requirement on braking force and infrequent braking, but is used under the working conditions of high requirement on braking force and frequent braking, so that the labor intensity of operators is improved, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an emergency braking mechanism for a cage lifter, which aims to solve the problems that the braking device of some existing small lifters still adopts a hand wheel to brake manually, the braking force requirement is not high, the use requirement can be met under the working condition that the braking is not frequent, but the braking device is used under the working condition that the braking force requirement is high and the braking is frequent, the labor intensity of operators is improved, and potential safety hazards exist.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a cage is emergency braking mechanism for lifting machine, establishes the epaxial brake disc of main shaft including the cover, the lifting machine include with the both ends of main shaft are rotated two mounting panels of connecting, the upper and lower both ends of mounting panel all are provided with the backup pad respectively, the brake disc is located two between the backup pad, and two be provided with the screw rod between the backup pad, the both ends of screw rod are respectively with two the backup pad is rotated and is connected, just be provided with in the backup pad and be used for driving screw rod pivoted motor, the cover is equipped with rather than threaded connection speed reduction piece on the screw rod, the speed reduction piece accessible the rotation of screw rod is close to or keeps away from the brake disc.

Preferably, a guide rod is further arranged between the two support plates, two ends of the guide rod are respectively connected with the two support plates, the guide rod is parallel to the screw rod, and the speed reduction sheet is sleeved on the guide rod.

Preferably, the screw rod is including being located first external thread and the second external thread on its outer wall, first external thread with the second external thread interval sets up on the outer wall of screw rod, the retarder is two, two the retarder is with crossing the horizontal plane of main shaft central line is the plane of symmetry, and the symmetry sets up the upper and lower both sides of brake disc, and two the retarder passes through respectively first external thread and second the external thread with screw rod threaded connection.

Preferably, one end of the speed reduction sheet facing the brake disc is an arc-shaped surface matched with the outer wall of the brake disc.

Preferably, one end of the speed reduction piece facing the brake disc is provided with a plurality of friction blocks.

Preferably, the brake block is towards the one end of brake disc is provided with the installation piece, the installation piece is located the clutch blocks with between the brake block, just the clutch blocks is fixed to be set up the installation piece is towards the one end of brake disc, the installation piece with the connection can be dismantled to the brake block.

Preferably, the speed reduction piece is provided with a first threaded hole in a penetrating mode, the mounting piece is provided with a second threaded hole, and the mounting piece is detachably connected with the speed reduction piece through bolts matched with the first threaded hole and the second threaded hole.

The utility model has at least one of the following advantages:

in the utility model, the screw rod can be driven to rotate by the arranged motor, the screw rod can drive the decelerating sheet which is in threaded connection with the screw rod to be close to the brake disc by the rotation of the screw rod, and the brake disc is pressed tightly, so that the main shaft is gradually decelerated to achieve the aim of braking the cage elevator.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the screw, the guide rod and the speed reduction plate of the present invention;

FIG. 3 is a schematic view of a disassembled three-dimensional structure of the deceleration strip of the present invention;

in the figure, 10-a main shaft, 20-a mounting plate, 21-a support plate, 30-a screw rod, 31-a first external thread, 32-a second external thread, 40-a guide rod, 50-a brake disc, 60-a speed reducing sheet, 61-a friction block, 62-a mounting sheet, 63-a bolt, 64-a first threaded hole, 65-a second threaded hole and 70-a motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; 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.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Example 1

As shown in fig. 1-2, this embodiment provides an emergency braking mechanism for cage lift, establish the brake disc 50 on the main shaft 10 of lifting machine including the cover, the lifting machine include with two mounting panels 20 of the both ends rotation connection of main shaft 10, the upper and lower both ends of mounting panel 20 all are provided with backup pad 21 respectively, brake disc 50 is located two between the backup pad 21, and two be provided with screw rod 30 between the backup pad 21, the both ends of screw rod 30 respectively with two backup pad 21 rotates to be connected, just be provided with on the backup pad 21 and be used for driving screw rod 30 pivoted motor 70, the cover is equipped with rather than threaded connection retarder 60 on the screw rod 30, retarder 60 accessible the rotation of screw rod 30 is close to or keeps away from brake disc 50. It should be noted that, for the guiding effect on the decelerating sheet 60, the guiding effect can be realized by making one end of the decelerating sheet 60 abut against one end of the supporting plate 21, the screw 30 can be driven to rotate by the arranged motor, the screw 30 can be driven to close to the braking disc 50 by being connected with the decelerating sheet 60 by threads, and the braking disc 50 is pressed tightly, so that the main shaft 10 is gradually decelerated, and the purpose of braking the cage elevator is achieved.

Further, as shown in fig. 1-2, a guide rod 40 is further disposed between the two support plates 21, two ends of the guide rod 40 are respectively connected to the two support plates 21, the guide rod 40 is parallel to the screw 30, and the speed reduction piece 60 is sleeved on the guide rod 40. The guide bar 40 serves to guide the reduction disk 60.

Further, as shown in fig. 1-2, the screw 30 includes a first external thread and a second external thread 32 on an outer wall thereof, the first external thread 31 and the second external thread 32 are oppositely disposed, the first external thread 31 and the second external thread 32 are disposed on the outer wall of the screw 30 at intervals, two decelerating plates 60 are disposed symmetrically on upper and lower sides of the brake disc 50, and the two decelerating plates 60 are respectively in threaded connection with the screw 30 through the first external thread 31 and the second external thread, with a horizontal plane passing through a center line of the main shaft 10 as a symmetric plane. Through the first external thread 31, the second external thread 32 and the two speed reduction pads 60 that set up for the screw rod 30 rotates and can drives two speed reduction pads 60 simultaneously and move along the direction that is close to brake disc 50, makes two speed reduction pads 60 compress tightly brake disc 50 simultaneously, makes the deceleration effect of main shaft 10 better.

Further, as shown in fig. 1, an end of the deceleration strip 60 facing the brake disc 50 is an arc-shaped surface matching with an outer wall of the brake disc 50. The arc-shaped surface increases the contact area between the reduction pad 60 and the brake disc 50, that is, increases the frictional force between the reduction pad 60 and the brake disc 50.

Further, as shown in fig. 1, the end of the reduction pad 60 facing the brake disc 50 is provided with a plurality of friction blocks 61. The provision of the friction block 61 further increases the frictional force between the reduction pad 60 and the brake disc 50.

The working principle of the embodiment is as follows: when the spindle 10 needs to be braked, the motor is started, the motor drives the screw 30 to rotate, the screw 30 rotates to enable the two speed reducing pieces 60 to move towards the direction close to the brake disc 50, the two speed reducing pieces 60 press the brake disc 50 tightly, the spindle 10 gradually reduces the speed, and the purpose of braking is achieved.

Example 2

As shown in fig. 1 to 3, the present embodiment is substantially the same as the previous embodiments, except that an end of the deceleration strip 60 facing the brake disc 50 is provided with a mounting strip 62, the mounting strip 62 is located between the friction block 61 and the deceleration strip 60, the friction block 61 is fixedly arranged at an end of the mounting strip 62 facing the brake disc 50, and the mounting strip 62 and the deceleration strip 60 are detachably connected. The speed reduction piece 60 is provided with a first threaded hole 64 in a penetrating mode, the mounting piece 62 is provided with a second threaded hole 65, and the mounting piece 62 is detachably connected with the speed reduction piece 60 through a bolt 63 matched with the first threaded hole 64 and the second threaded hole 65.

In this embodiment, it should be noted that, in the long-term braking process, the friction block 61 is ground by the brake disc 50, so that the friction force between the friction block 61 and the brake disc 50 is reduced, and the braking effect of the hoisting machine is deteriorated, and therefore, in this embodiment, the installation piece 62, the bolt 63, the first threaded hole 64, and the second threaded hole 65 are provided, so that the worker can replace the friction block 61 conveniently, and the long-term use of the braking mechanism is ensured.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a cage is emergency braking mechanism for lifting machine, establishes brake disc (50) on main shaft (10) of lifting machine including the cover, the lifting machine include with two mounting panels (20) of the both ends rotation connection of main shaft (10), its characterized in that: the upper and lower both ends of mounting panel (20) all are provided with backup pad (21) respectively, brake disc (50) are located two between backup pad (21), and two be provided with screw rod (30) between backup pad (21), the both ends of screw rod (30) are respectively with two backup pad (21) rotate to be connected, just be provided with on backup pad (21) and be used for driving screw rod (30) pivoted motor (70), the cover is equipped with rather than threaded connection speed reduction piece (60) on screw rod (30), speed reduction piece (60) accessible the rotation of screw rod (30) is close to or keeps away from brake disc (50).

2. The emergency braking mechanism for the cage lifter according to claim 1, wherein a guide rod (40) is further disposed between the two support plates (21), two ends of the guide rod (40) are respectively connected with the two support plates (21), the guide rod (40) is parallel to the screw rod (30), and the decelerating plate (60) is sleeved on the guide rod (40).

3. The emergency braking mechanism for the cage lifter according to claim 1, wherein the screw (30) comprises a first external thread (31) and a second external thread (32) on an outer wall thereof, the first external thread (31) and the second external thread (32) are arranged on the outer wall of the screw (30) at intervals, the number of the decelerating plates (60) is two, the two decelerating plates (60) are symmetrically arranged on the upper side and the lower side of the brake disc (50) by taking a horizontal plane passing through a center line of the main shaft (10) as a symmetry plane, and the two decelerating plates (60) are respectively in threaded connection with the screw (30) through the first external thread (31) and the second external thread (32).

4. Emergency brake mechanism for cage hoists, according to claim 1, characterized in that the end of the deceleration strip (60) facing the brake disc (50) is an arc-shaped surface matching the outer wall of the brake disc (50).

5. Emergency brake mechanism for cage hoists according to claim 1, characterized in that the end of the deceleration strip (60) facing the brake disc (50) is provided with friction pads (61).

6. Emergency braking mechanism for a cage lifter according to claim 5, characterised in that the end of the deceleration strip (60) facing the brake disc (50) is provided with a mounting strip (62), the mounting strip (62) is located between the friction block (61) and the deceleration strip (60), and the friction block (61) is fixedly arranged at the end of the mounting strip (62) facing the brake disc (50), and the mounting strip (62) and the deceleration strip (60) are detachably connected.

7. The emergency braking mechanism for the cage lifter according to claim 6, wherein the decelerating plate (60) is provided with a first threaded hole (64) in a penetrating manner, the mounting plate (62) is provided with a second threaded hole (65), and the mounting plate (62) is detachably connected with the decelerating plate (60) through a bolt (63) matched with the first threaded hole (64) and the second threaded hole (65).