Monorail crane for coal mining

Abstract

The invention discloses a monorail crane for coal mining, and belongs to the technical field of monorail crane equipment, the monorail crane comprises a suspension assembly, the suspension assembly comprises a clamping oil cylinder, and two side edge mounting plates are fixedly connected to the interior of the clamping oil cylinder; the opposite side walls of the two side edge mounting plates are fixedly connected with steering assemblies used for supporting and guiding, transmission assemblies used for transmission and direction guiding assemblies used for guiding the direction. When the device passes through a bent I-shaped rail, the direction guiding assemblies are used for guiding steering of the steering bevel wheels through the transmission assemblies; the steering bevel wheel is not forced to steer directly depending on the curve guide of the I-shaped rail, so that the abrasion of the steering bevel wheel is reduced, and meanwhile, the rotating force from the steering bevel wheel on the outer side of the curve can enable the direction guide assembly on the same side to approach the I-shaped rail, so that the I-shaped rail is pushed, the inclination of the clamping oil cylinder can be effectively relieved, and the stability of the clamping oil cylinder is improved. And the pressure borne by the inner side steering bevel wheel is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of monorail crane equipment, in particular to a monorail crane used for coal mining. Background Art

[0002] A monorail crane is a transportation system, usually consisting of a horizontal or inclined track and a crane moving on it. Its main feature is that it transports goods or people by suspending or fixing a track. This system is widely used in factories, warehouses, commercial facilities, mines and other fields. The working principle of a monorail crane is to use an electric motor to drive the crane to move on the track to achieve rapid handling of goods. Compared with traditional ground transportation methods, a monorail crane can effectively utilize height in an environment with limited space, reduce ground traffic congestion, and also reduce the interference between operators and ground traffic. In addition, the design of a monorail crane is usually highly flexible and can be adjusted and expanded according to specific needs. It has a fast operating speed and low noise, which can significantly improve work efficiency. In urban transportation, a monorail crane is also introduced as a light rail transportation system to solve the problem of urban traffic congestion.

[0003] A Chinese patent discloses a monorail crane trolley travel wheel guide device (authorization announcement number CN105752841B), which includes a seesaw, wherein the seesaw is provided with a first through hole in a horizontal direction perpendicular to the board surface, a spherical sleeve with a spherical outer surface is provided in the first through hole, a second through hole along the direction of the first through hole is provided on the spherical sleeve, a rotating shaft passes through the second through hole and is provided in the spherical sleeve, and a vertical shaft passes through the seesaw, the spherical sleeve and the rotating shaft in a vertical direction, thereby fixing the rotating shaft and the spherical sleeve together, and enabling the seesaw to rotate left and right around the spherical sleeve with the rotating shaft as the center. The monorail crane trolley travel wheel guide device provided by the present invention can drive the travel wheels of the monorail crane trolley to adapt to a track with a slope and a curve, and can also reduce the friction of the movement of the monorail crane trolley and run smoothly, which is not only energy-saving and environmentally friendly, but also solves the problem of load wear of the wheels of the monorail crane trolley.

[0004] In the above patent, multiple running wheels cannot achieve autonomous steering control, but rely on the guidance of the curved track for steering. Although the friction is reduced compared with the existing running wheels, it will still cause greater wear. In addition, in order to further reduce wear, considering that when the monorail crane enters the curved track, the inertia of the cargo and the centrifugal force generated by turning too fast may cause the suspension structure to tilt. This inclination will cause the running wheels on one side to bear greater pressure, thereby aggravating wear. Therefore, a monorail crane for coal mining is proposed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a monorail crane for coal mining to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A monorail crane for coal mining, comprising a suspension assembly, the suspension assembly comprising a clamping oil cylinder, two side mounting plates are fixedly connected inside the clamping oil cylinder, a steering assembly for support and guidance, a transmission assembly for transmission and a direction guiding assembly for guiding direction are fixedly connected to opposite side walls of the two side mounting plates, and an I-shaped track is arranged between the two side mounting plates; The direction guiding assembly includes a fixed frame, two guiding directional wheels are rotatably connected inside the fixed frame, a movable adjustment block is slidably connected to the fixed frame, a transmission rod is fixedly connected to the movable adjustment block, and the upper and lower side walls of the fixed frame are provided with connecting cross plates fixedly connected to the side mounting plates, and the two connecting cross plates are rotatably connected to the transmission rod, and a balance control assembly for controlling balance is fixedly connected to the upper connecting cross plate.

[0007] As a further solution of the present invention, the steering assembly includes a steering bevel wheel, on which a hinged rotating block is rotatably connected, and inside the hinged rotating block is a fixed bevel rod fixedly connected to the side mounting plate.

[0008] As a further solution of the present invention, a first steering suspension is fixedly connected to the articulated rotating block, a supporting inclined plate is fixedly connected to the side wall of the side mounting plate, and the first steering suspension is rotatably connected to the supporting inclined plate, and the upper end of the first steering suspension is rotatably connected to the second steering suspension through a universal joint.

[0009] As a further solution of the present invention, the transmission assembly includes a protective fixing box fixedly connected to the side wall of the side mounting plate, and the lower inner wall of the protective fixing box is rotatably connected to the first belt gear and the second belt gear.

[0010] As a further solution of the present invention, the first belt gear is fixedly connected to the upper end of the second steering suspension rod, and the second steering suspension rod is rotatably connected to the protective fixing box.

[0011] As a further solution of the present invention, the first belt gear is fixedly connected to the lower end of the transmission rod, the transmission rod is rotatably connected to the upper side wall of the protection fixing box, and a gear belt is sleeved between the protection fixing box and the second belt gear.

[0012] As a further solution of the present invention, the balance control assembly includes a square telescopic rod fixedly connected to the upper end of the transmission rod, a sliding guide rod is fixedly connected to the square telescopic rod, and a fixed guide cylinder is fixedly connected to the upper connecting cross plate.

[0013] As a further solution of the present invention, a thread guide groove is cut on the inner side wall of the fixed guide cylinder, and the sliding guide rod is located inside the thread guide groove.

[0014] As a further solution of the present invention, the upper end of the fixed guide cylinder is connected to an air storage cylinder, and a piston is slidably connected inside the air storage cylinder.

[0015] As a further solution of the present invention, a telescopic airbag is fixedly connected between the movable adjustment block and the inner side wall of the fixed frame, and a flexible air pipe is connected between the telescopic airbag and the air storage cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, the device can use the direction guiding assembly to guide the steering of the steering bevel wheel through the transmission assembly when passing through the curved I-shaped track, instead of letting the steering bevel wheel directly rely on the curve guidance of the I-shaped track to achieve forced steering, thereby reducing the wear of the steering bevel wheel.

[0017] 2. When the present invention is used, during the turning process, the rotational force from the outer steering bevel wheel of the curve will cause the direction guide assembly on the same side to approach the I-shaped track, thereby pushing the I-shaped track, thereby effectively alleviating the inclination of the clamping cylinder and reducing the pressure on the inner steering bevel wheel.

[0018] 3. When the present invention is used, the device adjusts the steering of the inclined steering wheel through the setting of the universal joint, so that the lateral force and stability of the inclined steering wheel can be better improved when the inclined steering wheel is tilted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional image of a monorail crane used in coal mining; Figure 2 It is a front view of a suspension component part of a monorail crane used in coal mining; Figure 3 It is a structural schematic diagram of a steering assembly in a monorail crane used in coal mining; Figure 4 It is a structural schematic diagram of a transmission component in a monorail crane used in coal mining; Figure 5 It is a structural schematic diagram of a direction guide component in a monorail crane used in coal mining; Figure 6 It is a structural schematic diagram of a balance control component in a monorail crane used in coal mining; Figure 7 This is a state diagram of the steering bevel wheel of a monorail crane used for coal mining when it passes through a curved I-shaped track; Figure 8 This is a state diagram of a suspension component in a monorail crane used in coal mining when it tilts; Fig. 9 This is a state diagram of a direction guide component on one side of a monorail crane used in coal mining when it pushes the I-type track.

[0020] Fig.10 for Fig. 9 Enlarged view of point A in the middle.

[0021] In the figure: 1. Suspension assembly; 101. Clamping cylinder; 102. Side mounting plate; 103. I-type track; 2. Steering assembly; 201. Steering bevel wheel; 202. Articulated rotating block; 203. Fixed bevel rod; 204. Support bevel plate; 205. First steering suspension rod; 206. Second steering suspension rod; 207. Universal joint; 3. Transmission assembly; 301. Protective fixing box; 302. First belt gear; 303. Second belt gear; 304. Gear belt; 4. Direction guide assembly; 401. Fixed frame; 402. Guide directional wheel; 403. Moveable adjustment block; 404. Transmission rod; 405. Connecting cross plate; 5. Balance control assembly; 501. Square telescopic rod; 502. Sliding guide rod; 503. Fixed guide cylinder; 504. Threaded guide groove; 505. Air storage cylinder; 506. Piston; 507. Telescopic airbag; 508. Flexible air tube. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1 to 5 In an embodiment of the present invention, a monorail crane for coal mining includes a suspension assembly 1, the suspension assembly 1 includes a clamping cylinder 101 for clamping a side mounting plate 102, two symmetrically arranged side mounting plates 102 are fixedly connected inside the clamping cylinder 101, and opposite side walls of the two side mounting plates 102 are fixedly connected with a steering assembly 2 for support and guidance, a transmission assembly 3 for realizing transmission between a direction guiding assembly 4 and the steering assembly 2, and a direction guiding assembly 4 for guiding the direction according to the curve of an I-shaped track 103, an I-shaped track 103 suspended on the top of the tunnel is arranged between the two side mounting plates 102, and the clamping action of the two side mounting plates 102 on the I-shaped track 103 is realized by the oil pressure generated by the clamping cylinder 101, so that the steering inclined wheel 201 is suspended on the I-shaped track 103 to realize the suspension of the monorail crane; The direction guide component 4 includes a fixed frame 401, and two fixed frames 401 are rotatably connected between the upper and lower inner walls inside the fixed frame 401. A slide groove is excavated on the fixed frame 401, and a movable adjustment block 403 is slidably connected inside the slide groove. A transmission rod 404 that passes through the upper and lower ends of the movable adjustment block 403 is fixedly connected to the movable adjustment block 403. The upper and lower side walls of the fixed frame 401 are both provided with a connecting cross plate 405 fixedly connected to the side mounting plate 102, and the two upper and lower connecting cross plates 405 are respectively rotatably connected to the upper and lower ends of the transmission rod 404, and the upper connecting cross plate 405 A balance control assembly 5 for controlling balance is fixedly connected to 05. In the initial state, the guide directional wheel 402 can be clamped against one side wall of the I-shaped track 103 by clamping the clamping cylinder 101. When the monorail crane moves to the curved I-shaped track 103, the fixed frame 401 turns due to the curvature of the I-shaped track 103. During this process, the fixed frame 401 will drive the movable adjustment block 403 to rotate a certain angle, so that the movable adjustment block 403 can drive the transmission rod 404 to rotate a certain angle. The rotation of the transmission rod 404 will cause the transmission assembly 3 and the balance control assembly 5 to produce different effects.

[0024] The steering assembly 2 includes an inclined steering wheel 201, and a hinged rotating block 202 is rotatably connected to the axis of the steering wheel 201 through a bearing. A fixed inclined rod 203 fixedly connected to the side mounting plate 102 is rotatably connected inside the hinged rotating block 202 through a bearing, and the rotation direction of the hinged rotating block 202 is along the same axis as the first steering suspension rod 205. The first steering suspension rod 205 is fixedly connected to the hinged rotating block 202, and the angles of the fixed inclined rod 203 and the supporting inclined plate 204 are both perpendicular to the first steering suspension rod 205. A supporting inclined plate 204 is fixedly connected to the side wall of the side mounting plate 102, and the first steering suspension rod 205 is rotatably connected to the supporting inclined plate 204. The upper end of the first steering suspension rod 205 is universally rotatably connected to one end of the second steering suspension rod 206 through a universal joint 207.

[0025] It is worth noting that a non-steerable steering bevel wheel 201 is installed on the opposite side wall of the two side mounting plates 102. This set of non-steerable steering bevel wheels 201 is like the rear wheels of a car, playing an auxiliary supporting and auxiliary steering role. During the use of the monorail crane, the steerable steering bevel wheels 201 need to be always in front of the moving direction.

[0026] The transmission assembly 3 includes a protection fixing box 301 fixedly connected to the side wall of the side mounting plate 102, and the lower inner wall of the protection fixing box 301 is rotatably connected with a first belt gear 302 and a second belt gear 303, the first belt gear 302 is fixedly connected to the upper end of the second steering suspension rod 206, and the second steering suspension rod 206 is rotatably connected to the protection fixing box 301, the first belt gear 302 is fixedly connected to the lower end of the transmission rod 404, the transmission rod 404 is rotatably connected to the upper side wall of the protection fixing box 301, a gear belt 304 is sleeved between the protection fixing box 301 and the second belt gear 303, and the transmission rod 404 is rotatably connected to the upper side wall of the protection fixing box 301, and a gear belt 304 is sleeved between the protection fixing box 301 and the second belt gear 303. When the gear 302 rotates, the second belt gear 303 is driven to rotate, so that the second belt gear 303 drives the first belt gear 302 to rotate in the same direction by a certain angle through the gear belt 304, and the first belt gear 302 drives the first steering suspension rod 205 to rotate in the same direction through the second steering suspension rod 206 and the universal joint 207, and finally the first steering suspension rod 205 drives the articulated rotating block 202 to rotate, so as to achieve the purpose of rotating the steering bevel wheel 201 by a certain angle, so that the steering bevel wheel 201 can realize steering without being close to the side wall of the I-shaped track 103, thereby effectively reducing the wear of the steering bevel wheel 201 and increasing the service life of the steering bevel wheel 201.

[0027] Example 2: Please refer to Figures 6 to 10 Based on the first embodiment, the balance control assembly 5 includes a square telescopic rod 501 fixedly connected to the upper end of the transmission rod 404, the square telescopic rod 501 includes an inner square rod and a square tube sleeved on the square rod, the square tube on the square telescopic rod 501 is fixedly connected with a sliding guide rod 502, the upper connecting cross plate 405 is fixedly connected with a fixed guide tube 503, the inner side wall of the fixed guide tube 503 is cut with a threaded guide groove 504, and the sliding guide rod 502 is located inside the threaded guide groove 504, the threaded guide grooves 504 on the left and right sides of the steering bevel wheel 201 have different thread directions, and the fixed guide tube 503 is fixedly connected with a fixed guide tube 503. The upper end of the fixed guide cylinder 503 is connected to an air storage cylinder 505, and a piston 506 is slidably connected inside the air storage cylinder 505. A telescopic air bag 507 is fixedly connected between the moving adjustment block 403 and the inner wall of the fixed frame 401. A flexible air pipe 508 is connected between the telescopic air bag 507 and the air storage cylinder 505. When the suspension assembly 1 is running, the clamping cylinder 101 will clamp the two side mounting plates 102, so that the guide directional wheel 402 of the fixed frame 401 is against the I-shaped track 103. At this time, the moving adjustment block 403 will squeeze the telescopic air bag 507, so that the height of the piston 506 is at the lowest state; When the suspension assembly 1 turns, the cargo suspended by the suspension assembly 1 will swing to one side due to inertia and centrifugal force. This swinging action will cause the suspension assembly 1 to tilt, which will cause the steering bevel wheel 201 on the inner side of the curve to bear most of the cargo weight, while the steering bevel wheel 201 on the outer side of the curve will bear less cargo weight, and even the steering bevel wheel 201 on the outer side of the curve will no longer contact the I-shaped track 103 and will not bear the cargo weight; Therefore, when the suspension assembly 1 is moving, the inner and outer sides of the bend of the steering bevel wheel 201 are determined by the steering direction of the steering bevel wheel 201. For example, when the suspension assembly 1 is traveling to the left, the steering bevel wheels 201 on both sides are guided to the left, while the steering bevel wheel 201 on the right side is at the outer side of the bend. The steering bevel wheel 201 on the left side bears a larger weight of the cargo. In this way, the device can be configured to have a structure so that when the steering bevel wheel 201 on the right side is guided to the left, the transmission rod 404 can drive the square telescopic rod 501 to rotate, so that the square telescopic rod 501 can rotate through the sliding guide The rod 502 extends and rotates upward, allowing the square telescopic rod 501 to extend and push the piston 506 to move upward, so that the air inside the air storage cylinder 505 enters the telescopic airbag 507 through the flexible air tube 508, causing the telescopic airbag 507 to expand, and pushes the guiding directional wheel 402 in the fixed frame 401 to push the industrial track 103, thereby improving the inclination of the suspension component 1; at this time, when the steering bevel wheel 201 on the left is guiding in the left direction, the transmission rod 404 on this side will drive the square telescopic rod 501 to move downward, thereby not pushing the piston 506 to move.

[0028] The working principle of the present invention is: In the initial state of the present invention, the oil pressure generated by the clamping cylinder 101 realizes the clamping action of the two side mounting plates 102 on the I-type track 103. This process enables the steering bevel wheel 201 to be firmly suspended on the I-type track 103, thereby completing the suspension of the monorail crane. At the same time, this clamping action will drive the fixed frame 401 to resist the I-type track 103. At this time, the movable adjustment block 403 will apply an extrusion force to the telescopic airbag 507 to exhaust the air inside the telescopic airbag 507. Under the action of air pressure, the piston 506 is kept at the lowest height. Then, the staff starts the monorail crane to move the suspension assembly 1 along the I-type track 103.

[0029] When the monorail crane moves to the curved I-shaped track 103, the fixed frame 401 turns due to the curvature of the I-shaped track 103. During this process, the fixed frame 401 drives the movable adjustment block 403 to rotate a certain angle, so that the movable adjustment block 403 can drive the transmission rod 404 to rotate a certain angle. When the transmission rod 404 rotates, it drives the second belt gear 303 to rotate, so that the second belt gear 303 drives the first belt gear 302 to rotate a certain angle in the same direction through the gear belt 304. The first belt gear 302 drives the first steering suspension rod 205 to rotate in the same direction through the second steering suspension rod 206 and the universal joint 207. Finally, the first steering suspension rod 205 drives the articulated rotating block 202 to rotate, so as to achieve the purpose of rotating the steering bevel wheel 201 by a certain angle, so that the steering bevel wheel 201 can realize steering without being close to the side wall of the I-shaped track 103, effectively reducing the wear of the steering bevel wheel 201 and increasing the service life of the steering bevel wheel 201. When the right steering bevel wheel 201 rotates toward the left direction, the transmission rod 404 in the right direction guide assembly 4 will also drive the square telescopic rod 501 to the left, causing the square telescopic rod 501 to be able to make an upward rotation movement along the fixed guide cylinder 503 through the sliding guide rod 502. This movement causes the square cylinder on the square rod in the square telescopic rod 501 to extend and rotate upward and push the piston 506, thereby moving the piston 506 upward, and then squeezing the air inside the air storage cylinder 505 to flow into the telescopic air bag 507 through the flexible air pipe 508, causing the telescopic air bag 507 to expand. This expansion phenomenon will push the fixed frame 401 to push the industrial track 103, thereby improving the tilt state of the suspension assembly 1 and sharing the pressure on the left steering bevel wheel 201. This series of actions is also applicable to the situation when the left steering bevel wheel 201 is guided toward the right.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A monorail crane for coal mining, comprising a suspension assembly (1), characterized in that: The suspension assembly (1) comprises a clamping oil cylinder (101), wherein two side mounting plates (102) are fixedly connected inside the clamping oil cylinder (101), and opposite side walls of the two side mounting plates (102) are fixedly connected with a steering assembly (2) for supporting and guiding, a transmission assembly (3) for transmission, and a direction guiding assembly (4) for guiding the direction, and an I-shaped track (103) is arranged between the two side mounting plates (102); The direction guiding assembly (4) comprises a fixed frame (401), two guiding directional wheels (402) are rotatably connected inside the fixed frame (401), a movable adjustment block (403) is slidably connected to the fixed frame (401), a transmission rod (404) is fixedly connected to the movable adjustment block (403), and a connecting transverse plate (405) fixedly connected to the side mounting plate (102) is provided on both upper and lower side walls of the fixed frame (401), and both connecting transverse plates (405) are rotatably connected to the transmission rod (404), and a balance control assembly (5) for controlling balance is fixedly connected to the upper connecting transverse plate (405).

2. A monorail crane for coal mining according to claim 1, characterized in that: The steering assembly (2) comprises a steering bevel wheel (201), the steering bevel wheel (201) is rotatably connected to a hinged rotating block (202), and the hinged rotating block (202) is internally rotatably connected to a fixed inclined rod (203) fixedly connected to the side mounting plate (102).

3. A monorail crane for coal mining according to claim 2, characterized in that: A first steering suspension rod (205) is fixedly connected to the hinged rotating block (202), a supporting inclined plate (204) is fixedly connected to the side wall of the side mounting plate (102), and the first steering suspension rod (205) is rotatably connected to the supporting inclined plate (204), and the upper end of the first steering suspension rod (205) is rotatably connected to the second steering suspension rod (206) via a universal joint (207).

4. A monorail crane for coal mining according to claim 3, characterized in that: The transmission assembly (3) comprises a protective fixing box (301) fixedly connected to the side wall of the side mounting plate (102), and a first belt gear (302) and a second belt gear (303) are rotatably connected to the lower inner wall of the protective fixing box (301).

5. A monorail crane for coal mining according to claim 4, characterized in that: The first belt gear (302) is fixedly connected to the upper end of the second steering suspension rod (206), and the second steering suspension rod (206) is rotatably connected to the protective fixing box (301).

6. A monorail crane for coal mining according to claim 5, characterized in that: The first belt gear (302) is fixedly connected to the lower end of the transmission rod (404), the transmission rod (404) is rotatably connected to the upper side wall of the protection fixing box (301), and a gear belt (304) is sleeved between the protection fixing box (301) and the second belt gear (303).

7. A monorail crane for coal mining according to claim 1, characterized in that: The balance control assembly (5) comprises a square telescopic rod (501) fixedly connected to the upper end of the transmission rod (404), a sliding guide rod (502) fixedly connected to the square telescopic rod (501), and a fixed guide cylinder (503) fixedly connected to the upper connecting cross plate (405).

8. A monorail crane for coal mining according to claim 7, characterized in that: A threaded guide groove (504) is bored on the inner side wall of the fixed guide cylinder (503), and the sliding guide rod (502) is located inside the threaded guide groove (504).

9. A monorail crane for coal mining according to claim 8, characterized in that: The upper end of the fixed guide cylinder (503) is connected to an air storage cylinder (505), and a piston (506) is slidably connected inside the air storage cylinder (505).

10. A monorail crane for coal mining according to claim 8, characterized in that: A telescopic air bag (507) is fixedly connected between the movable adjustment block (403) and the inner side wall of the fixed frame (401), and a flexible air pipe (508) is connected between the telescopic air bag (507) and the air storage cylinder (505).

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