Emergency rescue lifting device for coal mine

Abstract

The utility model belongs to the technical field of coal mine rescue lifting devices, and particularly relates to a coal mine emergency rescue lifting device which comprises two supporting frames, two rotating rods are rotationally connected between the two supporting frames through bearings, and a transmission mechanism used for enabling the rotating rods to rotate relatively is assembled and connected to one ends of the two rotating rods. The two rotating rods are each provided with two symmetrically-arranged winding rope sleeves, the winding rope sleeves are fixedly connected with the rotating rods, cables are fixedly connected to the sides, close to the supporting frame, of the four winding rope sleeves, the other ends of the four cables are hinged to a lifting box, and the transmission mechanism comprises a motor and two gears. The motor is assembled and connected with the supporting frame, an output shaft of the motor is in transmission connection with one ends of the rotating rods, and the two gears are in meshing transmission connection with one ends of the two rotating rods; the lifting box can be stably lifted and descended, and meanwhile workers can conveniently enter the lifting box.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine rescue hoisting devices, and in particular relates to a coal mine emergency rescue hoisting device. Background Art

[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, people generally choose to dig tunnels underground to mine coal. This is an underground coal mine. When the coal seam is very close to the surface, people generally choose to directly strip the surface soil layer to mine coal. This is an open-pit coal mine. The vast majority of coal mines in my country are underground coal mines. The scope of coal mines includes a large area of ​​the ground, underground and related facilities. Since underground coal mines usually work underground, when danger occurs underground, workers need to go underground to rescue the workers, so lifting devices are needed to allow workers to reach underground for rescue, and then lift the workers and rescued people to the ground.

[0003] In the prior art, the lifting basket is usually lowered by a rope and then lifted. However, since the lifting basket and the rope are softly connected, when the center of gravity in the lifting basket changes, the lifting basket is prone to tilt and is not easy to maintain balance, making it inconvenient for workers to rescue the victims. Utility Model Content

[0004] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a coal mine emergency rescue lifting device to solve the problems raised by the above background technology.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] A coal mine emergency rescue lifting device, comprising two support frames, two rotating rods are rotatably connected between the two support frames through bearings, one end of the two rotating rods is assembled and connected with a transmission mechanism for making the rotating rods rotate relatively, the two rotating rods are each provided with two symmetrically arranged winding rope loops, the winding rope loops are fixedly connected to the rotating rods and are located on a side close to the support frames, one end of the four winding rope loops close to each other is fixedly connected with a cable, the other ends of the four cables are hinged with a lifting box, the other ends of the four cables are respectively located at the four corners of the lifting box, the two cable loops located on the same side are provided with rope loops, the rope loops are located on the upper side of the lifting box, and the winding directions of the two cables located on the same side are opposite;

[0007] The transmission mechanism includes a motor and two gears. The motor is assembled and connected to the support frame. The motor output shaft is transmission-connected to one end of the rotating rod. The two gears are meshed and transmission-connected to one end of the two rotating rods.

[0008] Preferably, a counterweight is provided on the lower side of the lifting box.

[0009] Preferably, fixing bars are fixedly connected above the side walls on both the left and right sides of the lifting box, and the cable is fixedly assembled and connected above the fixing bars.

[0010] Preferably, baffles are provided on both the front and rear sides of the lifting box, the two baffles are hinged to the bottom of the lifting box, and a buckle assembly is provided between the upper part of the baffle and the end surface of the fixing strip.

[0011] Preferably, there are four groups of buckle assemblies, which are located at both ends of the two fixing strips.

[0012] Preferably, a group of the snap-fit ​​assemblies includes a fixing pin and a strap, the fixing pin is fixedly connected to the end of the fixing strip, the baffle is provided with a clearance groove for the fixing pin, one end of the strap is hinged to the baffle, and the other end of the strap is clamped to the baffle, and when the other end of the strap is clamped to the baffle, the fixing pin contacts the lower surface of the strap.

[0013] Preferably, a support rod is provided at the bottom of the lifting box, one end of the support rod extends out of the lifting box, and the other end is fixedly connected to the lifting box.

[0014] Preferably, the number of the support rods is four, and the four support rods are symmetrically arranged on the front and rear sides of the lifting box.

[0015] Preferably, the support frame is provided with a protective box outside the motor and the gear.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The utility model is connected to the lifting box through four cables. The cables are wound around the winding rope loops, and the transmission mechanism drives the rotating rod to rotate relatively, ensuring that the lowering speeds of the four cables are equal, thereby ensuring the stability of the lifting box. At the same time, the cables on the upper part of the lifting box form a triangle. Since the triangle has stability, the shaking of the lifting box is avoided.

[0018] 2. The baffle is hinged to the lifting box. When the staff reaches the ground, the baffle is lowered to facilitate the staff to leave the lifting box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0020] Figure 1 This is a structural schematic diagram of an embodiment of a coal mine emergency rescue lifting device of the utility model;

[0021] Figure 2 for Figure 1A partial enlarged view of the middle A;

[0022] Figure 3 This is an axonometric diagram of a coal mine emergency rescue hoisting device of the utility model;

[0023] Figure 4 This is a schematic diagram of the baffle of the utility model in a flat state;

[0024] Figure 5 This is a view of the baffle of the utility model in a flat state;

[0025] The main component symbols are described as follows:

[0026] Support frame 1, rotating rod 11, transmission mechanism 12, motor 121, gear 122, protection box 123, winding rope loop 13, cable 14, rope loop 15;

[0027] Lifting box 2, counterweight block 21, fixing bar 22, baffle plate 23, buckle assembly 24, fixing pin 241, strap 242, support rod 25. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1-5 As shown, a coal mine emergency rescue lifting device comprises two support frames 1, two rotating rods 11 are rotatably connected between the two support frames 1 through bearings, one end of the two rotating rods 11 is assembled and connected with a transmission mechanism 12 for making the rotating rods 11 rotate relatively, and the two rotating rods 11 are each provided with two symmetrically arranged winding rope loops 13, the winding rope loops 13 are fixedly connected to the rotating rods 11 and are located on a side close to the support frame 1, and the ends of the four winding rope loops 13 close to each other are fixedly connected with cables 14, and the other ends of the four cables 14 are hinged with a lifting box 2, and the other ends of the four cables 14 are respectively located at the four corners of the lifting box 2, and the two cables 14 located on the same side are provided with rope loops 15, and the rope loops 15 are located on the upper side of the lifting box 2, and the winding directions of the two cables 14 located on the same side are opposite;

[0030] The transmission mechanism 12 includes a motor 121 and two gears 122 . The motor 121 is assembled and connected to the support frame 1 . The output shaft of the motor 121 is transmission-connected to one end of the rotating rod 11 . The two gears 122 are meshed and transmission-connected to one end of the two rotating rods 11 .

[0031] By adopting the technical solution of this embodiment, the lifting box 2 is lowered by lowering the cables 14. After the workers are in the lifting box 2 and lowered to the rescue area, they rescue the victims. The lifting box 2 is connected by four cables 14. Two cables 14 are located on one side of the lifting box 2, and are symmetrically arranged one in front and one behind. The four cables 14 are respectively connected to the four corners of the lifting box 2, which can keep the lifting box 2 stable. The two rotating rods 11 rotate relative to each other, and the rotation speed of the rotating rods 11 is the same. When the cables 14 are lowered, the cables 14 move downward on the inner sides of the two rotating rods 11. When the lifting box 2 is lifted, the cables 14 are used to collect The rope loop 13 is wound and moves upward on the inner lower side of the two rotating rods 11. The rope loop 15 is used to form a triangle between the cable 14 and the lifting box 2. Since the triangle is stable, the lifting box 2 can remain stable. Since the lifting box 2 is driven by four cables 14 to move up and down at the same time, the lifting box 2 can remain stable during the lifting and lowering process and is not prone to shaking. The motor 121 drives the gear 122 to rotate. The two gears 122 have the same number of teeth. One gear 122 drives the other gear 122 to rotate, so that the two rotating rods 11 rotate relative to each other.

[0032] Reference Figure 5 : A counterweight 21 is provided on the lower side of the lifting box 2.

[0033] In this embodiment, the counterweight 21 is used to lower the center of gravity of the lifting box 2 to prevent the lifting box 2 from shaking.

[0034] Reference Figure 1 and Figure 4 : The upper part of the side walls on both sides of the lifting box 2 is fixedly connected with a fixing bar 22, and the cable 14 is fixedly assembled and connected above the fixing bar 22.

[0035] In this embodiment, the fixing strip 22 is used to strengthen the lifting box 2 .

[0036] Reference Figure 3-4 : Baffles 23 are provided on the front and rear sides of the lifting box 2, and the two baffles 23 are hinged to the bottom of the lifting box 2. A buckle assembly 24 is provided between the upper part of the baffle 23 and the end surface of the fixing strip 22.

[0037] In this embodiment, the baffle 23 is hinged to the bottom of the lifting box 2 and can rotate around the bottom of the lifting box 2. When the baffle 23 contacts the fixing bar 22, the snap assembly 24 is used to fix the position of the baffle 23, and the baffle 23 can be lowered to facilitate the staff to enter and exit the lifting box 2.

[0038] Reference Figure 1 and 3 : There are four groups of buckle components 24, which are located at both ends of the two fixing strips 22.

[0039] Reference Figure 2A set of snap-fit ​​components 24 includes a fixing pin 241 and a strap 242. The fixing pin 241 is fixedly connected to the end of the fixing strip 22. The baffle 23 is provided with a clearance groove for the fixing pin 241. One end of the strap 242 is hinged to the baffle 23, and the other end of the strap 242 is snap-fitted to the baffle 23. When the other end of the strap 242 is snap-fitted to the baffle 23, the fixing pin 241 contacts the lower surface of the strap 242.

[0040] In this embodiment, when the inner side of the baffle 23 contacts the end surface of the fixing strip 22, the fixing pin 241 is located in the clearance groove, and when the other end of the strap 242 is engaged with the baffle 23, the lower surface of the strap 242 contacts the fixing pin 241, and the fixing pin 241 supports the strap 242, thereby preventing the baffle 23 from rotating.

[0041] Reference Figure 5 A support rod 25 is provided at the bottom of the lifting box 2, one end of the support rod 25 extends out of the lifting box 2, and the other end is fixedly connected to the lifting box 2.

[0042] In this embodiment, the support rod 25 is used to support the baffle 23. When the baffle 23 is out of contact with the fixing bar 22, the support rod 25 can prevent the baffle 23 from rotating to the bottom of the lifting box 2, and also facilitate the staff to enter and exit the lifting box 2.

[0043] Reference Figure 5 : There are four support rods 25, and the four support rods 25 are symmetrically arranged on the front and rear sides of the lifting box 2.

[0044] Reference Figure 1 : The support frame 1 is provided with a protective box 123 outside the motor 121 and the gear 122.

[0045] In this embodiment, the protection box 123 is used to prevent the motor 121 and the gear 122 from being directly exposed to the outside.

[0046] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A coal mine emergency rescue lifting device, comprising two support frames (1), characterized in that: Two rotating rods (11) are rotatably connected between the two support frames (1) via bearings, one end of the two rotating rods (11) is assembled and connected with a transmission mechanism (12) for making the rotating rods (11) rotate relatively, and the two rotating rods (11) are each provided with two symmetrically arranged winding rope loops (13), the winding rope loops (13) are fixedly connected to the rotating rods (11) and are located on a side close to the support frame (1), and the mutually close ends of the four winding rope loops (13) are fixedly connected with cables (14), and the other ends of the four cables (14) are hinged to a lifting box (2), and the other ends of the four cables (14) are respectively located at the four corners of the lifting box (2), and the two cables (14) located on the same side are provided with rope loops (15), and the rope loops (15) are located on the upper side of the lifting box (2), and the winding directions of the two cables (14) located on the same side are opposite; The transmission mechanism (12) comprises a motor (121) and two gears (122); the motor (121) is assembled and connected to the support frame (1); the output shaft of the motor (121) is transmission-connected to one end of the rotating rod (11); and the two gears (122) are meshed and transmission-connected to one end of the two rotating rods (11).

2. A coal mine emergency rescue lifting device according to claim 1, characterized in that: A counterweight (21) is provided on the lower side of the lifting box (2).

3. A coal mine emergency rescue lifting device according to claim 1, characterized in that: A fixing strip (22) is fixedly connected above the side walls on both the left and right sides of the lifting box (2), and the cable (14) is fixedly assembled and connected above the fixing strip (22).

4. A coal mine emergency rescue lifting device according to claim 3, characterized in that: Baffles (23) are provided on both the front and rear sides of the lifting box (2), and the two baffles (23) are hinged to the bottom of the lifting box (2), and a buckle assembly (24) is provided between the upper part of the baffle (23) and the end surface of the fixing strip (22).

5. A coal mine emergency rescue lifting device according to claim 4, characterized in that: There are four groups of buckle components (24) located at both ends of the two fixing strips (22).

6. A coal mine emergency rescue lifting device according to claim 5, characterized in that: A group of the buckle components (24) includes a fixing pin (241) and a strap (242), wherein the fixing pin (241) is fixedly connected to the end of the fixing strip (22), the baffle (23) is provided with a clearance groove for the fixing pin (241), one end of the strap (242) is hinged to the baffle (23), and the other end of the strap (242) is snap-connected to the baffle (23), and when the other end of the strap (242) is snap-connected to the baffle (23), the fixing pin (241) contacts the lower surface of the strap (242).

7. A coal mine emergency rescue hoisting device according to claim 1, characterized in that: A support rod (25) is provided at the bottom of the lifting box (2), one end of the support rod (25) extends out of the lifting box (2), and the other end is fixedly connected to the lifting box (2).

8. A coal mine emergency rescue hoisting device according to claim 7, characterized in that: The number of the support rods (25) is four, and the four support rods (25) are symmetrically arranged on the front and rear sides of the lifting box (2).

9. A coal mine emergency rescue hoisting device according to claim 1, characterized in that: The support frame (1) is provided with a protection box (123) outside the motor (121) and the gear (122).

Images