CN111196253A - Maintenance method of mechanical walking device - Google Patents
Maintenance method of mechanical walking device Download PDFInfo
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- CN111196253A CN111196253A CN202010133229.8A CN202010133229A CN111196253A CN 111196253 A CN111196253 A CN 111196253A CN 202010133229 A CN202010133229 A CN 202010133229A CN 111196253 A CN111196253 A CN 111196253A
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- speed reducer
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- wheel assembly
- walking
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000012423 maintenance Methods 0.000 title claims abstract description 31
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 112
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims 1
- 230000008569 process Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
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- 229910052802 copper Inorganic materials 0.000 description 2
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- 230000008439 repair process Effects 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B29/00—Apparatus or tools for mounting or dismounting wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B29/00—Apparatus or tools for mounting or dismounting wheels
- B60B29/001—Apparatus or tools for mounting or dismounting wheels comprising lifting or aligning means
Abstract
The invention relates to a maintenance method of a mechanical walking device, which comprises the following steps: a first hydraulic device is arranged in a gap between the travelling wheel and the speed reducer; starting the first hydraulic device until the speed reducer falls off from the transmission shaft; disassembling and overhauling the walking wheel assembly; assembling the walking wheel assembly; assembling the mechanical walking device; and debugging the mechanical walking device. A first hydraulic device is placed in a gap between the traveling wheel assembly and the speed reducer, one end of the first hydraulic device is abutted to the traveling wheel, the other end of the first hydraulic device is abutted to the speed reducer, and then the first hydraulic device is started until the speed reducer falls off from the transmission shaft. Compared with the traditional method for disassembling the speed reducer, the first hydraulic device can reduce the damage to parts such as the speed reducer and the like, and meanwhile, the disassembly time is shortened, and the maintenance efficiency of the mechanical walking device is improved.
Description
Technical Field
The invention relates to the technical field of mechanical maintenance, in particular to a maintenance method of a mechanical walking device.
Background
The mechanical walking device comprises walking wheels, self-aligning roller bearings, a speed reducer and other parts. Wherein, the end of the transmission shaft which passes through the walking wheels passes through the speed reducer. In the long-term use process of the mechanical walking device, parts such as walking wheels, transmission shafts and the like are easy to wear and need to be maintained or replaced. However, after the mechanical travelling device is used for a long time, the speed reducer and the travelling wheels are fixed on the transmission shaft and are difficult to detach, so that certain difficulty is brought to maintenance of the travelling wheels. At present, the traditional method for detaching a speed reducer and a travelling wheel from a transmission shaft is as follows: put into the voussoir between walking wheel and the speed reducer, the staff constantly strikes the voussoir after that for the distance between walking wheel and the speed reducer is propped to the voussoir, and the speed reducer can be followed the transmission shaft and dropped off like this, makes things convenient for the staff to continue to change or maintain spare parts such as walking wheel. However, in the process of disassembling, the parts such as the travelling wheels and the speed reducer are easily damaged, and the process lasts for a long time, so that the maintenance efficiency is affected.
Disclosure of Invention
In view of the above, it is desirable to provide a method for maintaining a mechanical traveling apparatus, which can reduce damage to components such as a speed reducer, shorten maintenance time, and improve maintenance efficiency of the mechanical traveling apparatus.
The maintenance method of the mechanical walking device comprises a trolley, a walking wheel assembly and a speed reducer, wherein the walking wheel assembly comprises a transmission shaft and a walking wheel body arranged on the transmission shaft in a penetrating mode, the trolley is borne on the walking wheel body, the speed reducer is connected to the walking wheel body through the transmission shaft, and the maintenance method comprises the following steps:
a first hydraulic device is arranged in a gap between the travelling wheel and the speed reducer, one end of the first hydraulic device is abutted against the travelling wheel body, and the other end of the first hydraulic device is abutted against the speed reducer;
starting the first hydraulic device until the speed reducer falls off from the transmission shaft;
disassembling and overhauling the walking wheel assembly;
assembling the walking wheel assembly;
assembling the mechanical walking device;
and debugging the mechanical walking device.
The maintenance method of the mechanical walking device at least has the following beneficial effects:
in the maintenance method of the mechanical traveling device provided by this embodiment, the first hydraulic device is placed in the gap between the traveling wheel assembly and the speed reducer, one end of the first hydraulic device abuts against the traveling wheel, the other end of the first hydraulic device abuts against the speed reducer, and then the first hydraulic device is started until the speed reducer falls off from the transmission shaft. Compared with the traditional method for disassembling the speed reducer, the first hydraulic device can reduce the damage to parts such as the speed reducer and the like, and meanwhile, the disassembly time is shortened, and the maintenance efficiency of the mechanical walking device is improved.
The technical solution is further explained below:
in one embodiment, at least two of the first hydraulic devices are evenly distributed annularly around the drive shaft; the first hydraulic device is a hydraulic jack or a hydraulic cylinder, and the distance between the walking wheel body and the speed reducer is larger than the original length of the first hydraulic device.
In one embodiment, the mechanical traveling device further includes a driving motor disposed on the speed reducer, and before the step of placing the first hydraulic device between the traveling wheel and the speed reducer, the mechanical traveling device further includes the steps of:
starting the mechanical walking device to a maintenance site;
and removing the driving motor.
In one embodiment, the step of starting the first hydraulic device until the speed reducer falls off from the transmission shaft specifically includes the following steps:
dismantling a connecting bolt between the speed reducer and the trolley;
a forklift is arranged at the bottom of the speed reducer;
the speed reducer is connected with a manual hoist;
and starting the first hydraulic device until the speed reducer falls on the forklift.
In one embodiment, the walking wheel assembly further comprises self-aligning roller bearings arranged on two sides of the walking wheel, and the self-aligning roller bearings are arranged on the transmission shaft in a penetrating mode.
In one embodiment, the step of disassembling and repairing the traveling wheel assembly specifically includes the following steps:
a second hydraulic device is arranged below the trolley;
starting the second hydraulic device to lift the trolley off the ground;
removing a connecting part between the walking wheel assembly and the trolley;
removing the walking wheel assembly from under the trolley;
and disassembling the traveling wheel body and the self-aligning roller bearing, and maintaining or replacing the traveling wheel assembly.
In one embodiment, the step of assembling the walking wheel assembly specifically includes the following steps:
heating the self-aligning roller bearing;
and the walking wheel body and the self-aligning roller bearing are arranged on the transmission shaft.
In one embodiment, in the step of heating the self-aligning roller bearing, the method specifically includes the following steps:
and heating the self-aligning roller bearing to 110-120 ℃ by using an induction heater.
In one embodiment, the trolley is provided with the mounting slot for mounting the road wheel assembly, and the step of assembling the mechanical walking device specifically includes the following steps:
transporting the road wheel assembly onto a mounting rail;
starting the second hydraulic device until the installation slot position of the trolley is aligned with the walking wheel assembly;
fastening and connecting the trolley and the walking wheel assembly by adopting a fastener;
and installing the speed reducer.
In one embodiment, after the step of assembling the mechanical running gear, the method further comprises the following steps:
and lubricating oil is added to the self-aligning roller bearing.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mechanical walking device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a walking wheel assembly and a speed reducer provided in an embodiment of the present invention;
fig. 3 is a flowchart of a maintenance method of a mechanical walking device according to an embodiment of the present invention.
Description of reference numerals:
100. a trolley; 200. a traveling wheel assembly; 210. a drive shaft; 220. a running wheel body; 230. a self-aligning roller bearing; 300. a speed reducer; 400. the motor is driven.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The present embodiment provides a method for repairing a mechanical traveling apparatus, which has the advantages of reducing damage to components such as a speed reducer 300, shortening the repair time, and improving the repair efficiency of the mechanical traveling apparatus, and will be described in detail below with reference to the accompanying drawings.
In one embodiment, referring to fig. 1 to 3, the mechanical traveling device includes a trolley 100, a traveling wheel assembly 200 and a speed reducer 300, the traveling wheel assembly 200 includes a transmission shaft 210 and a traveling wheel body passing through the transmission shaft 210, the trolley 100 is carried on the traveling wheel body, and the speed reducer 300 is connected to the traveling wheel body through the transmission shaft 210. A maintenance method of a mechanical walking device comprises the following steps:
s110: a first hydraulic device (not shown) is disposed in a gap between the road wheel and the speed reducer 300, one end of the first hydraulic device abuts against the road wheel body, and the other end of the first hydraulic device abuts against the speed reducer 300.
S120: the first hydraulic device is activated until the reducer 300 is disengaged from the drive shaft 210.
S130: the walking wheel assembly 200 is disassembled and serviced.
S140: the walking wheel assembly 200 is assembled.
S150: and assembling the mechanical walking device.
S160: and debugging the mechanical walking device.
In the maintenance method of the mechanical traveling device provided in this embodiment, a first hydraulic device is placed in a gap between the traveling wheel assembly 200 and the speed reducer 300, one end of the first hydraulic device abuts against the traveling wheel, and the other end of the first hydraulic device abuts against the speed reducer 300, and then the first hydraulic device is started until the speed reducer 300 falls off from the transmission shaft 210. Compared with the traditional method for disassembling the speed reducer 300, the first hydraulic device can reduce the damage to the speed reducer 300 and other parts, shorten the disassembly time and improve the maintenance efficiency of the mechanical walking device.
In steps S110 and S120, at least two first hydraulic devices are provided. At least two first hydraulic means centers on transmission shaft 210 annular evenly distributed so can guarantee that first hydraulic means is after the start-up, and is even to the equal application of force of speed reducer 300 or walking wheel body, effectively prevents speed reducer 300 and takes place the skew at the in-process that drops from transmission shaft 210, and then leads to speed reducer 300 to take place to turn round phenomenons such as decrease, effectively avoids speed reducer 300 or walking wheel body to receive the damage. Wherein, the first hydraulic device is a hydraulic jack or a hydraulic cylinder. In order to ensure that the first hydraulic device can be smoothly placed between the walking wheel body and the speed reducer 300, the distance between the walking wheel body and the speed reducer 300 is greater than the original length of the first hydraulic device. The original length of the first hydraulic device refers to the length of the first hydraulic device in the direction from the road wheel body to the speed reducer 300. Specifically, as shown in fig. 1 to 3, the first hydraulic device employs a hydraulic jack. The number of the hydraulic jacks is two, the original length of the hydraulic jacks is smaller than 50mm, and the gap between the walking wheel body and the speed reducer 300 is larger than 50 mm. The two hydraulic jacks are symmetrically arranged with the transmission shaft 210 as a center.
Further, referring to fig. 1 to 3, the step of starting the first hydraulic device until the speed reducer 300 falls off from the transmission shaft 210, that is, the step S120 specifically includes the following steps:
s121: the connecting bolts (not shown) between the speed reducer 300 and the cart 100 are removed. Specifically, the speed reducer 300 and the trolley 100 are fixed through connecting bolts, and the connecting bolts are firstly removed to facilitate subsequent removal of the accelerator.
S122: a forklift is arranged at the bottom of the speed reducer 300. Specifically, hold up speed reducer 300 bottom with fork truck, effectively avoid speed reducer 300 to break away from the emergence behind transmission shaft 210 and fall the phenomenon of colliding with, play the effect of protection speed reducer 300.
S123: the reducer 300 is connected with a manual hoist. Specifically, the hand block is used to pull the speed reducer 300, so that the phenomenon that the speed reducer 300 is unstable or shakes during falling off from the transmission shaft 210 or during subsequent movement of the speed reducer 300 is effectively prevented.
S124: the first hydraulic device is started until the reducer 300 falls on the forklift. Specifically, the first hydraulic device applies force to the speed reducer 300, so that the speed reducer 300 falls off from the transmission shaft 210 and falls on a forklift, and the forklift transports the speed reducer 300 to a location where a maintenance worker is located for maintenance. It is understood that, before step S124, it is necessary to put a forklift on the bottom of the speed reducer 300 and hold the speed reducer 300 with a hand block. Before step S124, steps S121, S122 and S123 may be performed simultaneously or sequentially and alternately.
Further, the mechanical traveling device further includes a driving motor 400, the driving motor 400 is disposed on the speed reducer 300, and in step S110: before the step of placing the first hydraulic device between the travelling wheel and the speed reducer 300, the method further comprises the following steps: firstly, starting the mechanical walking device to a maintenance site; the drive motor 400 is removed. Specifically, an operator firstly drives the mechanical traveling device to a maintenance site, and retracts an operating arm of the mechanical traveling device to enable the mechanical traveling device to be in a non-working state; then, the electrician removes the locking disc structures at the end of the driving motor 400 and the end of the speed reducer 300, so as to facilitate the subsequent removal of the speed reducer 300. The locking disc is a keyless connection device which is fixed at the outer end of the speed reducer 300 by screwing a high-strength bolt, so that the pressure and friction force generated between containing surfaces realize load transmission, and is used for realizing the connection between the speed reducer 300 and the transmission shaft 210 and transmitting the load. When the locking disc is used, a huge holding force is generated between the inner ring of the speed reducer 300 and the transmission shaft 210 under the action of the high-strength bolt, and the slipping phenomenon between the speed reducer 300 and the transmission shaft 210 is effectively prevented.
Further, referring to fig. 1 to 3, the walking wheel assembly 200 further includes self-aligning roller bearings 230 disposed on two sides of the walking wheel, and the self-aligning roller bearings 230 are disposed on the transmission shaft 210 in a penetrating manner. In the step of disassembling and repairing the traveling wheel assembly 200, that is, the step S130 specifically includes the steps of:
s131: a second hydraulic device (not shown) is provided below the carriage 100. The second hydraulic device adopts a hydraulic jack.
S132: the second hydraulic means is activated for lifting the trolley 100 off the ground. Specifically, the bottom of the mechanical walking device shown in fig. 1 to 3 is provided with 48 road wheels, the total weight of the mechanical walking device is about 845 tons, and when the mechanical walking device is not considered to cause the stress of each road wheel to be uneven due to different rotation and pitch angles of the arm frame, a single road wheel bears about 17.6 tons of average load when the mechanical walking device is unloaded. Two traveling wheels are arranged below each trolley 100, and the total amount of the traveling wheels is 35.2 tons, so that two hydraulic jacks of 50T can be selected. The two hydraulic jacks are respectively provided at both sides of the trolley 100 for supporting the trolley 100. When the lift of the jack is insufficient, a steel plate can be arranged on the bottom of the jack and used for increasing the lift of the jack. The jack is pressurized to support the trolley 100, so that the road wheel assembly 200 is separated from the track surface of the road wheel (the track surface is the surface for the road wheel to run) by a certain height of about 3-5 cm, thereby facilitating the pulling of the road wheel assembly 200 out of the trolley 100.
S133: the coupling between the traveling wheel assembly 200 and the dolly 100 is removed. The connecting component may be any component used for connecting the traveling wheel assembly 200 and the trolley 100, such as a nut, a bolt, a stud, and the like, which is not described herein.
S134: the walking wheel assembly 200 is removed from under the trolley 100. Specifically, the traveling wheel assembly 200 is pulled out from the trolley 100 by a hoist, and is lifted out of the track surface, and then the traveling wheel assembly 200 is transported to a maintenance worker for replacement and maintenance by a forklift.
S135: the walking wheel body and the self-aligning roller bearing are disassembled, and the walking wheel assembly 200 is maintained or replaced. Specifically, each part of the traveling wheel assembly 200, such as the traveling wheel body and the self-aligning roller bearing 230, is removed, and the damaged or low-value parts are replaced in time.
Further, referring to fig. 1 to 3, in the step of assembling the traveling wheel assembly 200, step S140 specifically includes the following steps:
s141: the self-aligning roller bearing 230 is heated. Before the self-aligning roller bearing 230 is mounted, parts such as a sleeve of the road wheel need to be mounted. To facilitate assembly of the road wheel assembly 200, the drive shaft 210 may be first uniformly sanded with sand paper so that the periphery of the drive shaft 210 is smooth, burr-free, and convex. The self-aligning roller bearing 230 has two rows of rollers, 1 common spherical raceway on the outer ring, and 2 raceways on the inner ring and inclined at an angle with respect to the bearing axis. The ingenious structure enables the bearing box to have self-aligning performance, so that the bearing box is not easily affected by the angle between the shaft and the bearing box seat to the error or the bending of the shaft, and is suitable for occasions with the angle error caused by installation error or shaft deflection. The bearing can bear radial load and axial load with bidirectional action. In operating this step, the self-aligning roller bearing may be heated to 110-120 ℃ by an induction heater. An induction heater (inductor for short) is an inductance coil, can meet various heating processes by reasonably distributing induction magnetic fields, and is a key component for realizing various induction heating processes. The two self-aligning roller bearings 230 are sequentially heated to 110-120 ℃ by an induction heater, so that frequent heating or high-temperature heating is avoided.
S142: the transmission shaft 210 is provided with the road wheel body and the self-aligning roller bearing 230. Specifically, the heated self-aligning roller bearing 230 is fitted over the transmission shaft 210 in a compliant manner, and the position of the self-aligning roller bearing 230 is adjusted. In the installation process of the self-aligning roller bearing 230, if there is a slight position deviation, the inner ring of the self-aligning roller bearing 230 can be lightly knocked by a copper rod, and the periphery of the inner ring is uniformly forced to push the self-aligning roller bearing 230 to move so as to reduce the deviation. After the self-aligning roller bearing 230 is mounted, the end caps of the speed reducer 300 and the end caps of the road wheel body may be continuously mounted.
Further, referring to fig. 1 to 3, the trolley 100 is provided with the mounting slot for mounting the road wheel assembly 200. In the step of assembling the mechanical running gear, that is, step S150 specifically includes the steps of:
s151: transporting the walking wheel assembly 200 onto a mounting rail. Specifically, the mounting rail refers to a rail on which the traveling wheel body moves. The worker can transport the traveling wheel assembly 200 to the mounting rail using a tool such as a chain block.
S152: the second hydraulic device is activated until the mounting slot of the trolley 100 is aligned with the walking wheel assembly 200. Specifically, the second hydraulic device adopts a hydraulic jack, the hydraulic jack is slowly returned, the trolley 100 slowly descends, and the self-aligning roller bearing 230 of the travelling wheel assembly 200 is aligned to the installation slot position below the trolley 100.
S153: fasteners are used to securely connect the trolley 100 and the road wheel assembly 200. After the trolley 100 contacts the self-aligning roller bearing 230, the trolley 100 and the walking wheel assembly 200 are fastened and connected by fasteners such as bolts or studs.
S154: the speed reducer 300 is installed. The outer circumference of the mounting hole of the speed reducer 300 and the driving shaft 210 is sanded. The speed reducer 300 is forked up by a forklift, the speed reducer 300 is aligned with the position of the transmission shaft 210 for mounting the speed reducer 300, and the speed reducer 300 is slowly pushed to move. In this process, the reducer 300 may encounter resistance and move unsmoothly, and at this time, the copper bar or the hand hammer can be used to knock the outer side of the mounting hole of the reducer 300, and the power-assisted reducer 300 continues to move until the reducer 300 is mounted in place. And the locking sleeve at the outer end of the speed reducer 300 and the driving motor 400 at the top of the speed reducer 300 are installed in place.
Further, after the step of assembling the mechanical traveling device, that is, after the traveling wheel assembly 200 and the reducer 300 are completely installed, the lubricating oil needs to be added to the aligning roller bearing 230 immediately, so that the smoothness of operation of the mechanical traveling device is improved.
And finally, removing auxiliary tools such as a hydraulic jack, a manual hoist, temporary base plates at various positions and the like, and well performing field cleaning treatment.
Further, referring to fig. 1 to 3, in the step of adjusting the mechanical walking device, step S160 specifically includes the following steps: after the installation work of the walking wheel assembly 200, the speed reducer 300 and other parts is finished, technicians operate the mechanical walking device to do walking movement back and forth, if the mechanical walking device is found to be abnormal, the operation can be carried out, and if the abnormal condition is found, the machine should be stopped immediately for inspection. During operation, monitoring is also needed, and if abnormal phenomena or sounds occur, technicians are timely informed to perform inspection.
The mechanical traveling device provided in this embodiment may be a reclaimer traveling device, a ship loader traveling device, or a stacker traveling device, and is not specifically limited herein.
In the maintenance method of the mechanical traveling device provided in this embodiment, a first hydraulic device is placed in a gap between the traveling wheel assembly 200 and the speed reducer 300, one end of the first hydraulic device abuts against the traveling wheel, and the other end of the first hydraulic device abuts against the speed reducer 300, and then the first hydraulic device is started until the speed reducer 300 falls off from the transmission shaft 210. Compared with the traditional method for disassembling the speed reducer 300, the first hydraulic device can reduce the damage to the speed reducer 300 and other parts, shorten the disassembly time and improve the maintenance efficiency of the mechanical walking device.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The maintenance method of the mechanical walking device is characterized in that the mechanical walking device comprises a trolley, a walking wheel assembly and a speed reducer, the walking wheel assembly comprises a transmission shaft and a walking wheel body penetrating through the transmission shaft, the trolley is borne on the walking wheel body, the speed reducer is connected to the walking wheel body through the transmission shaft, and the maintenance method comprises the following steps:
a first hydraulic device is arranged in a gap between the travelling wheel and the speed reducer, one end of the first hydraulic device is abutted against the travelling wheel body, and the other end of the first hydraulic device is abutted against the speed reducer;
starting the first hydraulic device until the speed reducer falls off from the transmission shaft;
disassembling and overhauling the walking wheel assembly;
assembling the walking wheel assembly;
assembling the mechanical walking device;
and debugging the mechanical walking device.
2. The method for repairing a mechanical running gear according to claim 1, wherein at least two of said first hydraulic devices are evenly distributed annularly around said drive shaft; the first hydraulic device is a hydraulic jack or a hydraulic cylinder, and the distance between the walking wheel body and the speed reducer is larger than the original length of the first hydraulic device.
3. The method for repairing a mechanical running gear according to claim 1, wherein the mechanical running gear further comprises a driving motor provided on the reduction gear, and before the step of placing the first hydraulic device between the running gear and the reduction gear, the method further comprises the steps of:
starting the mechanical walking device to a maintenance site;
and removing the driving motor.
4. The method for maintaining a mechanical running gear according to claim 1, wherein the step of activating the first hydraulic device until the reduction gear comes off the transmission shaft specifically includes the steps of:
dismantling a connecting bolt between the speed reducer and the trolley;
a forklift is arranged at the bottom of the speed reducer;
the speed reducer is connected with a manual hoist;
and starting the first hydraulic device until the speed reducer falls on the forklift.
5. The method for maintaining a mechanical traveling device according to claim 1, wherein the traveling wheel assembly further includes self-aligning roller bearings provided on both sides of the traveling wheel, the self-aligning roller bearings being inserted into the transmission shaft.
6. The method for repairing a mechanical running gear according to claim 5, wherein the step of disassembling and repairing the running wheel assembly comprises the following steps:
a second hydraulic device is arranged below the trolley;
starting the second hydraulic device to lift the trolley off the ground;
removing a connecting part between the walking wheel assembly and the trolley;
removing the walking wheel assembly from under the trolley;
and disassembling the traveling wheel body and the self-aligning roller bearing, and maintaining or replacing the traveling wheel assembly.
7. The method for repairing a mechanical running gear according to claim 6, wherein the step of assembling the running wheel assembly specifically comprises the steps of:
heating the self-aligning roller bearing;
and the walking wheel body and the self-aligning roller bearing are arranged on the transmission shaft.
8. The method for repairing a mechanical running gear according to claim 7, wherein the step of heating the self-aligning roller bearing specifically includes the steps of:
and heating the self-aligning roller bearing to 110-120 ℃ by using an induction heater.
9. The method for maintaining the mechanical traveling device according to claim 6, wherein the trolley is provided with the mounting groove for mounting the traveling wheel assembly, and the step of assembling the mechanical traveling device specifically includes the steps of:
transporting the road wheel assembly onto a mounting rail;
starting the second hydraulic device until the installation slot position of the trolley is aligned with the walking wheel assembly;
fastening and connecting the trolley and the walking wheel assembly by adopting a fastener;
and installing the speed reducer.
10. The method for repairing a mechanical running gear according to claim 9, further comprising, after the step of assembling the mechanical running gear, the steps of:
and lubricating oil is added to the self-aligning roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010133229.8A CN111196253A (en) | 2020-02-28 | 2020-02-28 | Maintenance method of mechanical walking device |
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| CN202010133229.8A CN111196253A (en) | 2020-02-28 | 2020-02-28 | Maintenance method of mechanical walking device |
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Application publication date: 20200526 |