A drive brake device of a monorail crane and a monorail crane

Abstract

The utility model discloses a drive brake device and monorail crane, drive brake device of monorail crane includes frame, drive arrangement and brake device, and frame includes walking wheel, and walking wheel is used for walking along the track, drive arrangement includes two sets of drive assembly rotatably connected in frame, and drive assembly all includes first power source, the reducer of output end connection in first power source, two friction wheels of connection in reducer and can synchronous rotation, corresponding friction wheel in two sets of drive assembly can be close to each other to hold in the both sides of track to drive frame to move along the track extension direction, brake device installs in the brake assembly of frame front end and rear end, and brake assembly all includes two brake pads located in the both sides of track, and the form of first power source plus reducer is used to replace the expensive internal curve hydraulic motor, and the number of friction wheel is increased to increase the friction area, which reduces the manufacturing cost, and prolongs the service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to monorail hoist technical field, especially monorail hoist's drive braking device and monorail hoist. BACKGROUND

[0002] The coal mine explosion -proof diesel engine monorail hoist vehicle is the auxiliary transport equipment applied in the coal mine underground, and the working safety and service life are very important. Since the driving part adopts the inner curve hydraulic motor drive, the friction wheel pair is clamped to the track web through the clamping hydraulic cylinder, and the driving friction wheel walks on the track. The driving motor needs large torque and long service life. Since the clamping hydraulic cylinder has large radial clamping force to the hydraulic motor, especially on the humid track, to avoid the friction wheel slip, the pressure of the clamping cylinder needs to be increased. The shaft end sealing of the hydraulic motor is easy to be damaged and leak, and the service life is greatly reduced.

[0003] Therefore, how to make the monorail hoist hydraulic drive braking part improve the service life and reduce the manufacturing cost under the condition of unchanged efficiency is the technical problem to be solved by the person skilled in the art at present. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of drive braking device and monorail hoist of monorail hoist, can make the monorail hoist hydraulic drive braking part improve the service life and reduce the manufacturing cost under the condition of unchanged efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of drive braking device of monorail hoist, comprising:

[0006] The rack includes a walking wheel, and the walking wheel is used to walk along the track;

[0007] The driving device includes two sets of driving assemblies rotatably connected to the rack, and each driving assembly includes a first power source, a reducer connected to the output end of the first power source, and two friction wheels connected to the reducer and capable of synchronous rotation. The corresponding friction wheels in the two sets of driving assemblies can approach each other to be clamped on both sides of the track, so as to drive the rack to move along the extension direction of the track.

[0008] The braking device includes a braking assembly installed on the front end and the rear end of the rack, and each braking assembly includes two braking plates located on both sides of the track, and the braking plates can approach and move away from the track.

[0009] Preferably, the rack is provided with a mounting seat and a clamping hydraulic cylinder;

[0010] The housing of the reducer is rotatably connected to the mounting seat through a rotating shaft, and the clamping hydraulic cylinder is connected to one end of the housing of the reducer away from the rotating shaft, so as to drive the reducer to rotate around the axis of the rotating shaft.

[0011] Preferably, the braking assembly includes:

[0012] Two brake connecting rods are rotatably connected to the frame and located on both sides of the track, and the top of the brake connecting rod is rotatably connected to the corresponding brake plate;

[0013] The brake hydraulic cylinder comprises a first cylinder body and a piston rod capable of relative movement, the first cylinder body is connected to the bottom of one brake connecting rod, and the piston rod is connected to the bottom of the other brake connecting rod;

[0014] The elastic member is sleeved on the outer periphery of the brake hydraulic cylinder to drive the first cylinder body and the piston rod away from each other.

[0015] Preferably, the speed reducer comprises:

[0016] An input shaft;

[0017] A first output shaft connected to the input shaft through a set of first transmission gears, and the first output shaft is connected to one friction wheel of the driving assembly;

[0018] A second output shaft connected to the input shaft through a set of second transmission gears, and the second output shaft is connected to the other friction wheel of the driving assembly.

[0019] Preferably, the first cylinder body and the piston rod are each provided with a flange at the end away from each other, and the elastic member is located between the two flanges.

[0020] Preferably, the frame is provided with a connecting seat located at both ends of the frame in the extension direction of the track for connecting adjacent two frames.

[0021] Preferably, the first power source is specifically a hydraulic motor.

[0022] Preferably, the elastic member is specifically a spring.

[0023] Preferably, the axes of all the friction wheels are parallel to each other, and the axes of the friction wheels are parallel to the axis of the rotating shaft.

[0024] A monorail crane comprising the driving and braking device of the monorail crane.

[0025] With respect to the background art, the driving and braking device of the monorail crane comprises a frame, a driving device and a braking device, the frame comprises a walking wheel for walking along a track; the driving device comprises two sets of driving assemblies rotatably connected to the frame, each driving assembly comprises a first power source, a speed reducer connected to the output end of the first power source, and two friction wheels connected to the speed reducer and capable of synchronous rotation, the corresponding friction wheels in the two sets of driving assemblies can approach each other to be clamped on both sides of the track to drive the frame to move in the extension direction of the track; the braking device is installed on the braking assemblies at the front end and the rear end of the frame, and each braking assembly comprises two brake plates located on both sides of the track, and the brake plates can approach and move away from the track.

[0026] Specifically, a speed reducer is arranged between the first power source and the friction wheel, the torque of the output end of the first power source is amplified by the speed reducer, and the rotating speed of the output end of the first power source is reduced, the expensive internal curve hydraulic motor is replaced by the form of the first power source plus the speed reducer, the manufacturing cost is reduced, and the number of the friction wheels is increased to increase the friction area by arranging two friction wheels connected to the corresponding speed reducers and capable of synchronous rotation in each driving assembly, the damage of the driving hydraulic motor caused by excessive clamping force is effectively avoided, the service life is improved, the slipping phenomenon is reduced, and the use safety and stability of the locomotive are improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description only constitute the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0028] Fig. 1 A structural schematic view of the driving and braking device of the monorail crane provided by the embodiment of the present application is shown in the figure.

[0029] Fig. 2 A top view of the driving and braking device of the monorail crane provided by the embodiment of the present application is shown in the figure.

[0030] Fig. 3 A structural schematic view of the braking assembly provided by the embodiment of the present application is shown in the figure.

[0031] Among them:

[0032] 1-frame, 11-traveling wheel, 12-mounting seat, 13-clamping hydraulic cylinder, 14-connection seat;

[0033] 2-rail;

[0034] 3-first power source;

[0035] 4-speed reducer, 41-rotating shaft;

[0036] 5-friction wheel;

[0037] 61-brake plate, 62-brake connecting rod, 63-brake hydraulic cylinder, 64-elastic member. DETAILED DESCRIPTION

[0038] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0039] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0040] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the position or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0041] The purpose of the present application is to provide a driving and braking device for a monorail crane and a monorail crane, which can improve the service life and reduce the manufacturing cost of the hydraulic driving and braking part of the monorail crane without changing the efficiency.

[0042] Please refer to Figs. 1 to 3 To achieve the above purpose, the present application provides a driving and braking device for a monorail crane, comprising a rack 1, a driving device and a braking device.

[0043] The rack 1 comprises a walking wheel 11, which is used for walking along the track 2.

[0044] It can be understood that the track 2 is usually a single track 2 in a suspended state, and the single track 2 is an I-shaped track 2, which comprises a bottom plate for bearing the walking wheel 11 and a web plate cooperating with the friction wheel 5 described below. The walking wheel 11 is adopted in four, two of which are arranged on both sides of the web plate, and the two walking wheels 11 located on the same side of the web plate are arranged at the front end and the rear end of the rack 1, so as to ensure the stability of the rack 1 during walking.

[0045] The driving device comprises two sets of driving assemblies rotatably connected to the rack 1, and each driving assembly comprises a first power source 3, a reducer 4 connected to the output end of the first power source 3, and two friction wheels 5 connected to the reducer 4 and capable of synchronous rotation. The corresponding friction wheels 5 in the two sets of driving assemblies can be close to each other to be clamped on both sides of the track 2, so as to drive the rack 1 to move along the extension direction of the track 2.

[0046] The first power source 3 is a hydraulic motor, which can be a conventional hydraulic motor, and the ordinary hydraulic motor plus a reducer 4 is used to replace the expensive internal curve hydraulic motor, thereby reducing the manufacturing cost.

[0047] The friction wheel 5 is driven by the hydraulic motor and the reducer 4 to clamp the web and move along the extension direction of the track 2, and the running wheel 11 runs on the bottom plate of the track 2 to suspend the whole frame 1 on the track 2, and the running wheel 11 is tightly attached to the bottom plate of the track 2 under the gravity of the frame 1, thereby improving the stability of the whole frame 1.

[0048] The brake device includes brake assemblies installed at the front end and the rear end of the frame 1, and each brake assembly includes two brake plates 61 located on both sides of the track 2, and the brake plates 61 can approach and move away from the track 2.

[0049] When the frame 1 runs, there is a gap between the brake plates 61 and the web on both sides of the web of the track 2, and when the frame 1 needs to be braked, the brake plates 61 on both sides of the web of the track 2 clamp the web, and the brake of the frame 1 is realized by the friction between the brake plates 61 and the web.

[0050] The reducer 4 is arranged between the first power source 3 and the friction wheel 5, the reducer 4 amplifies the torque at the output end of the first power source 3 and reduces the rotation speed at the output end of the first power source 3, the first power source 3 plus the reducer 4 is used to replace the expensive internal curve hydraulic motor, thereby reducing the manufacturing cost, and two sets of drive assemblies are arranged with two friction wheels 5 connected to the corresponding reducers 4 and capable of synchronous rotation, the number of friction wheels 5 is increased to increase the friction area, the damage of the drive hydraulic motor caused by excessive clamping force is effectively avoided, the service life is improved, the slipping phenomenon is reduced, and the use safety and stability of the locomotive are improved.

[0051] In the embodiment, the frame 1 is provided with a mounting seat 12 and a clamping hydraulic cylinder 13, the housing of the reducer 4 is rotatably connected to the mounting seat 12 through a rotating shaft 41, and the clamping hydraulic cylinder 13 is connected to the end of the housing of the reducer 4 away from the rotating shaft 41 to drive the reducer 4 to rotate around the axis of the rotating shaft 41.

[0052] The mounting seat 12 includes a vertical plate body and two horizontal plate bodies arranged at intervals on the vertical plate body, a through hole is formed on the horizontal plate body for the rotating shaft 41 to pass through, the housing of the reducer 4 is rotatably connected to the mounting seat 12, a positioning pin can be installed in the through hole, and the sleeve connected to the housing of the reducer 4 is sleeved on the positioning pin to rotatably connect the housing of the reducer 4 to the mounting seat 12, and the sleeve can be arranged between the two horizontal plate bodies.

[0053] The clamping hydraulic cylinder 13 changes the length of the clamping hydraulic cylinder 13 in the self-axis by hydraulic pressure, when the piston rod of the clamping hydraulic cylinder 13 is extended, the speed reducer 4 rotates around the rotating shaft 41 in the direction away from the web; when the piston rod of the clamping hydraulic cylinder 13 is retracted, the speed reducer 4 rotates around the rotating shaft 41 in the direction close to the web, and the extension amount of the piston rod of the clamping hydraulic cylinder 13 can also be controlled according to actual needs to adjust the clamping degree of the friction wheel 5 and the web.

[0054] In the embodiment, the brake assembly includes two brake connecting rods 62, a brake hydraulic cylinder 63 and elastic members 64. The two brake connecting rods 62 are rotatably connected to the frame 1 and located on both sides of the track 2. The top of the brake connecting rod 62 is rotatably connected to the corresponding brake plate 61. The brake hydraulic cylinder 63 includes a first cylinder body and a piston rod capable of relative movement. The first cylinder body is connected to the bottom of one brake connecting rod 62, and the piston rod is connected to the bottom of the other brake connecting rod 62. The elastic member 64 is sleeved on the outer periphery of the brake hydraulic cylinder 63 to drive the first cylinder body and the piston rod away from each other.

[0055] The first cylinder body and the piston rod are provided with flanges at the ends away from each other. The elastic member 64 is located between the two flanges. The elastic member 64 is specifically a spring. The brake plate 61 can include a connecting member and a friction block for abutting against the web of the track 2. The brake connecting rod 62 is fixed to the frame 1 through a first pin shaft, connected to the connecting member through a second pin shaft, and connected to the piston rod or the first cylinder body through a third pin shaft. The axes of the first pin shaft, the second pin shaft and the third pin shaft are parallel to each other. The distance between the first pin shaft and the third pin shaft is preferably 3-10 times the distance between the first pin shaft and the second pin shaft.

[0056] When braking is needed, the two brake hydraulic cylinders 63 are unloaded. Under the action of the restoring force of the two elastic members 64, the brake connecting rod 62 transmits the spring force to the brake plate 61 in proportion, so that the four brake plates 61 lock the web of the track 2 to achieve braking. At this time, the hydraulic motor and the clamping hydraulic cylinder 13 are also unloaded, the friction wheel 5 does not move, and the speed reducer 4 moves outward to drive the friction wheel 5 to move outward and away from the web of the track 2, thereby completing the braking.

[0057] The flanges are provided to facilitate the abutment of the two ends of the spring and the first cylinder body and the piston rod when the elastic member 64 is a spring.

[0058] It should be noted that the speed reducer 4 is a double-output shaft speed reducer 4 to drive the two friction wheels 5 to rotate synchronously. The speed reducer 4 includes an input shaft, a first output shaft and a second output shaft. The first output shaft is connected to the input shaft through a set of first transmission gears, and the first output shaft is connected to one friction wheel 5 of the driving assembly. The second output shaft is connected to the input shaft through a set of second transmission gears, and the second output shaft is connected to the other friction wheel 5 of the driving assembly.

[0059] All the axes of the friction wheels 5 are parallel to each other and parallel to the axis of the rotating shaft 41, and the rotating shaft 41 is vertically arranged so that the circumferential surface of the friction wheel 5 can tightly contact the web plate of the track 2, thereby increasing the contact area between the friction wheel 5 and the web plate.

[0060] In the embodiment, the frame 1 is provided with the connecting seat 14 at both ends of the frame 1 in the extension direction of the track 2, and the two adjacent frames 1 are sequentially connected through the connecting seat 14. The connecting seat 14 can also be used to pull the transport vehicle for transporting goods at one end of the frame 1.

[0061] In addition, the single-track crane also comprises the driving and braking device of the single-track crane, and has the beneficial effects of the driving and braking device of the single-track crane.

[0062] In summary, the application provides a driving and braking device of a single-track crane, which comprises a frame 1, a driving device and a braking device. The frame 1 comprises a walking wheel 11 for walking along a track 2. The driving device comprises two sets of driving assemblies rotatably connected to the frame 1. Each driving assembly comprises a first power source 3, a speed reducer 4 connected to the output end of the first power source 3, and two friction wheels 5 connected to the speed reducer 4 and capable of synchronous rotation. The corresponding friction wheels 5 in the two sets of driving assemblies can be close to each other to be clamped on both sides of the track 2, so as to drive the frame 1 to move along the extension direction of the track 2. The braking device comprises a braking assembly installed on the front end and the rear end of the frame 1, and each braking assembly comprises two braking plates 61 located on both sides of the track 2, and the braking plates 61 can be close to and away from the track 2. The frame 1 is provided with a mounting seat 12 and a clamping hydraulic cylinder 13. The housing of the speed reducer 4 is rotatably connected to the mounting seat 12 through a rotating shaft 41, and the clamping hydraulic cylinder 13 is connected to one end of the housing of the speed reducer 4 away from the rotating shaft 41, so as to drive the speed reducer 4 to rotate around the axis of the rotating shaft 41. The speed reducer 4 is arranged between the first power source 3 and the friction wheel 5, the torque at the output end of the first power source 3 is amplified through the speed reducer 4, and the rotating speed at the output end of the first power source 3 is reduced. The first power source 3 plus the speed reducer 4 is used instead of the expensive internal curve hydraulic motor, which reduces the manufacturing cost. Each driving assembly is provided with two friction wheels 5 connected to the corresponding speed reducer 4 and capable of synchronous rotation, the number of friction wheels 5 is increased to increase the friction area, the damage of the driving hydraulic motor caused by excessive clamping force is effectively avoided, the service life is improved, the slipping phenomenon is reduced, and the use safety and stability of the locomotive are improved.

[0063] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0064] The various embodiments are described in the specification by way of progression, each building on the last to facilitate ease of understanding. The same reference numerals are used throughout the drawings and like structure are denoted with like reference numerals.

[0065] The principles and implementation modes of the present application are described by using specific examples in the specification. The above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that, for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in many ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A drive and braking device for a monorail crane, characterized in that, Comprise: A frame (1) comprising a walking wheel (11) for walking along a track (2); A drive device comprising two sets of drive assemblies rotatably connected to the frame (1), each drive assembly comprising a first power source (3), a reducer (4) connected to the output end of the first power source (3), two friction wheels (5) connected to the reducer (4) and capable of synchronous rotation, the corresponding friction wheels (5) in the two sets of drive assemblies can approach each other to be clamped on both sides of the track (2) to drive the frame (1) to move along the extension direction of the track (2); A brake device comprising brake assemblies installed on the front and rear ends of the frame (1), and each brake assembly comprises two brake plates (61) located on both sides of the track (2), and the brake plates (61) can approach and away from the track (2).

2. The drive and brake device of the monorail according to claim 1, wherein: The frame (1) is provided with a mounting seat (12) and a clamping hydraulic cylinder (13); The housing of the reducer (4) is rotatably connected to the mounting seat (12) through a rotating shaft (41), and the clamping hydraulic cylinder (13) is connected to the housing of the reducer (4) away from the rotating shaft (41) to drive the reducer (4) to rotate around the axis of the rotating shaft (41).

3. The drive and brake device of the monorail according to claim 1, wherein: The brake assembly comprises: Two brake connecting rods (62) rotatably connected to the frame (1) and located on both sides of the track (2), the top of the brake connecting rod (62) is rotatably connected to the corresponding brake plate (61); A brake hydraulic cylinder (63) comprising a first cylinder body and a piston rod capable of relative movement, the first cylinder body is connected to the bottom of one brake connecting rod (62), and the piston rod is connected to the bottom of the other brake connecting rod (62); An elastic member (64) is sleeved on the outer periphery of the brake hydraulic cylinder (63) to drive the first cylinder body and the piston rod away from each other.

4. The drive and brake device of the monorail according to claim 2, wherein: The reducer (4) comprises: An input shaft; A first output shaft connected to the input shaft through a set of first transmission gears, the first output shaft is connected to one of the friction wheels (5) of the drive assembly; A second output shaft connected to the input shaft through a set of second transmission gears, the second output shaft is connected to the other friction wheel (5) of the drive assembly.

5. The drive and brake device of the monorail according to claim 3, wherein: The first cylinder body and the piston rod are provided with flanges at the ends away from each other, and the elastic member (64) is located between the two flanges.

6. The drive and brake device of the monorail according to claim 4, wherein: The rack (1) is provided with connecting seats (14) located at both ends of the rack (1) in the extension direction of the track (2) for connecting two adjacent racks (1).

7. The drive and brake device of the monorail crane according to claim 4, characterized in that, The first power source (3) is specifically a hydraulic motor.

8. The drive and brake device of the monorail crane according to claim 5, characterized in that, The elastic member (64) is specifically a spring.

9. The drive brake device of the monorail hoist according to claim 4, characterized by The axes of all the friction wheels (5) are parallel to each other and parallel to the axis of the rotating shaft (41).

10. A monorail hoist characterized by, A drive and brake device of a monorail crane comprising any one of claims 1 to 9.

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