Dismounting device for planet wheel of bulldozer
Technical Field
The utility model relates to a bull-dozer auxiliary assembly technical field especially relates to a bull-dozer planet wheel dismouting device.
Background
A bulldozer is an earthwork machine capable of excavating, transporting and discarding rock and soil, and has wide application in open-pit mines. The bulldozer is one of the necessary large heavy equipment in the production process of the open pit coal mine.
Planetary gears are important components of the drive train of a bulldozer and require frequent maintenance. In the maintenance process, because the planetary gear and the bearing are heavy, a maintenance worker needs to protect the planetary gear carrier by using the support and the batten pad, the sledge hammer and the copper bar are matched to use the detachable planetary gear, the support mode is batten point support, namely the batten pad supports a fulcrum under the planetary gear carrier, the planetary gear carrier is supported, and then the detachable planetary gear carrier is detached. The work efficiency is low during the dismouting, has great potential safety hazard. In the maintenance process, the support battens move under vibration in maintenance operation, and the risk that a planet carrier slides off to injure maintenance personnel exists; when the sledgehammer copper rod is matched for operation, the risk of mechanical damage and the like due to misoperation exists. When a planetary gear system gear bearing is worn and needs to be replaced, the end face of a striking pin shaft has different degrees to damage the bearing, the safety position is unstable, and the gap of a thrust radial bearing cannot be adjusted to the optimal assembly position, so that the working difficulty is high, and the overhauling efficiency is low.
Therefore, the problems existing in the prior dismounting and mounting of the planetary gear are as follows: the danger that the planet wheel carrier slips and hurts people occurs, the working difficulty is high, and the working efficiency is low.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a bull-dozer planet wheel dismouting device realizes overhauing a plurality of planet wheels through hydraulic jack, rotary platform and pinhole.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the utility model provides a bull-dozer planet wheel dismouting device for help maintainer dismouting push away the transmission system of machine, includes the base, and the upper surface of base is connected with the support frame, and the upper portion of support frame is connected with rotatory beam bearing, and rotatory beam bearing frame is installed on the upper portion of rotatory beam bearing, is connected with rotatory portal frame on the rotatory beam bearing frame, and rotatory portal frame rotates on rotatory beam bearing frame.
The rotating beam bearing seat is connected with a rotating frame main shaft, and the top end of the rotating frame main shaft is connected with a bearing. The lower part of the rotary frame main shaft is sleeved with an oil tray, and the oil tray and the rotary frame main shaft rotate coaxially. The bearing is connected with a rotating platform, the rotating platform is provided with a pin hole, the upper surface of the rotating platform is connected with a press fitting clamping fixture, and the press fitting clamping fixture is in butt joint with the pin hole.
An upper slideway and a lower slideway are respectively arranged at the upper part of the rotary portal frame, the upper slideway is parallel to the lower slideway, and the top surface of the press fitting mould is connected with the bottom surface of the lower slideway. The top surface of glide slope is provided with hydraulic cylinder jack, and hydraulic cylinder jack's top surface is connected with the bottom surface of glide slope, and hydraulic cylinder jack's right-hand member is connected with quick adapter.
Compared with the prior art, the utility model has the advantages of it is following: by using the dismounting device, the original batten point supporting mode is changed into a surface supporting mode of a hydraulic lifting steel structure, the overhaul operation safety coefficient is enhanced, and the potential safety hazard existing when the planet wheel of the bulldozer is overhauled is solved; meanwhile, the damage to parts and the optimal assembly position and gap are guaranteed, the parts are not easily damaged, the working efficiency is improved, the labor intensity is reduced, and the device has the characteristics of safety, firmness and durability.
More preferably: the main shaft of the rotary frame is sleeved in the bearing seat of the rotary beam.
By adopting the technical scheme, the rotating frame main shaft and the rotating beam bearing seat are installed together, and the purpose of supporting the rotating platform is achieved.
More preferably: the number of pin holes is at least 2.
Adopt above-mentioned technical scheme, like this, the pinhole more than 2 is established on rotary platform, can aim at with a plurality of planet wheels in the planet wheel, realizes overhauing a plurality of planet wheels simultaneously.
More preferably: the base is made of a steel plate.
Adopt above-mentioned technical scheme, change original flitch support mode into the face support mode of hydraulic pressure lift steel construction, strengthened maintenance operation factor of safety.
The method is further optimized as follows: the hydraulic cylinder jack is a jack group hydraulic cylinder jack.
By adopting the technical scheme, the hydraulic oil cylinder jack slides between the lower slideway and the upper slideway, so that the diameter size of the circular planet wheel is changed, and the purpose of disassembling and assembling the wheel shafts of the planet wheel carrier with different sizes is achieved.
The method is further optimized as follows: the height between the rotary portal frame and the base is 1600 mm.
By adopting the technical scheme, the height between the rotary portal frame and the base is ensured to meet the height requirement of the maintenance planet wheel.
The method is further optimized as follows: the distance between the base and the rotating platform is 900 mm.
By adopting the technical scheme, the height between the rotary platform and the base is ensured to meet the height requirement of the maintenance planet wheel.
The method is further optimized as follows: the base is circular.
By adopting the technical scheme, after the circular base is contacted with the bottom surface, the contact area is large, so that the dismounting device is more stable, the planetary gear is beneficial to overhaul, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
Reference numerals: 1-a base; 2-a support frame; 3-a rotating beam bearing; 4-rotating the beam bearing block; 5-an oil tray; 6-pin holes; 7-a rotating platform; 8-rotating the portal frame; 9-lower slideway; 10-upper slideway; 11-a quick-change adapter; 12-hydraulic cylinder jack; 13-pressing a clamping fixture; 14-a bearing; 15-rotating the main shaft.
Detailed Description
The present invention will be described in further detail with reference to fig. 1.
The utility model provides a bull-dozer planet wheel dismouting device for help maintainer dismouting push away the transmission system of machine, as shown in figure 1, it includes base 1, and the upper surface of base 1 is connected with support frame 2, and the upper portion of support frame 2 is connected with rotatory beam bearing 3, and rotatory beam bearing frame 4 is installed on the upper portion of rotatory beam bearing 3, is connected with rotatory portal frame 8 on rotatory beam bearing frame 4, and rotatory portal frame 8 rotates on rotatory beam bearing frame 4. The shape of the support frame 2 is conical, the size of the upper end of the support frame 2 is smaller than that of the lower end of the support frame, and the purpose of stably supporting the rotary portal frame 8 is achieved.
The rotating beam bearing seat 4 is connected with a rotating frame main shaft 5, and the top end of the rotating frame main shaft 5 is connected with a bearing 14. The lower part of the rotary frame main shaft 5 is sleeved with an oil material disc 5, and the oil material disc 5 and the rotary frame main shaft 5 rotate coaxially. The bearing 14 is connected with a rotary platform 7, the rotary platform 7 is provided with a pin hole 6, the upper surface of the rotary platform 7 is connected with a press fitting clamping fixture 13, and the press fitting clamping fixture 13 is in butt joint with the pin hole 6.
The upper portion of rotatory portal frame 8 is seted up respectively and is gone up slide 10 and lower slide 9, goes up slide 10 and is parallel with lower slide 9, and the top surface of pressure equipment mould 13 is connected with the bottom surface of lower slide 9. The top surface of the lower slideway 9 is provided with a hydraulic oil cylinder jack 12, the top surface of the hydraulic oil cylinder jack 12 is connected with the bottom surface of the upper slideway 10, and the right end of the hydraulic oil cylinder jack 12 is connected with a quick adapter 11. In order to ensure the strength, a base 1 with the diameter size of 700mm is manufactured by using a steel plate with the thickness of 30 mm; manufacturing a conical support frame 2 by using a waste edge reduction part of a bulldozer; the waste side reducing radial thrust bearing 14 is used for manufacturing the rotating beam bearing 3, so that the rotating portal frame 8 is ensured to rotate stably; the total height from the upper surface of the rotating portal frame 88 to the circular base 11 is 1600mm, and the distance from the circular base 11 to the upper surface of the rotating platform 7 is 900 mm.
Specifically, in this embodiment, the spindle 5 of the swivel mount is sleeved in the bearing seat 4 of the swivel beam. The rotating frame main shaft 5 and the rotating beam bearing seat 4 are installed together, and the purpose of supporting the rotating platform 7 is achieved.
Specifically, the number of the pin holes 6 in this embodiment is at least 2, and thus, the pin holes 6 more than 2 are formed in the rotating platform 7 and can be aligned with a plurality of planet wheels in the planet wheels, so that the planet wheels can be overhauled simultaneously.
Specifically, the steel sheet is chooseed for use to base 1's material in this embodiment, changes original flitch support mode into the face support mode of hydraulic pressure lift steel construction, has strengthened maintenance operation factor of safety.
Specifically, in this embodiment, the hydraulic cylinder jack 12 is a jack group hydraulic cylinder jack 12, and the hydraulic cylinder jack 12 slides between the lower slideway 9 and the upper slideway 10, so as to change the diameter size of the circular planet wheel and achieve the purpose of disassembling and assembling the planet wheel carrier axles with different sizes.
Specifically, the height between rotatory portal frame 8 and the base 1 is 1600mm in this embodiment, ensures that the height between rotatory portal frame 8 and the base 1 accords with the high requirement of overhauing the planet wheel.
Specifically, the distance between the base 1 and the rotary platform 7 in this embodiment is 900mm, which ensures that the height between the rotary platform 7 and the base 1 meets the height requirement of the maintenance planet wheel.
Specifically, base 1 is circular in this embodiment, and circular shape base 1 is after the bottom surface contact, and area of contact is big, makes the dismouting device more stable, helps overhauing the planet wheel, improves work efficiency.
The planet wheel dismounting process:
at first, the planet gear to be overhauled is placed on the rotary platform 7, the wheel shaft of the planet gear is aligned to the two pin holes 6, the platform can be freely rotated, the position of the planet gear is adjusted, and smooth dismounting is ensured. The rotary portal frame 8 and the rotary platform 7 are both arranged in the support of the conical support frame 2 and the circular base 1 to work. Because the planet gears of the planet gear carrier are dispersed on the circumference at 120 degrees, the gantry 8 needs to be rotated to rotate circumferentially to fix the position of the hydraulic oil cylinder jack 12 during disassembly and assembly. The hydraulic oil cylinder jack 12 slides between the lower slideway 9 and the upper slideway 10, thereby changing the diameter size of the planet wheel and achieving the purpose of dismounting and mounting wheel shafts of planet wheels with different sizes. Therefore, the disassembly and assembly positions can be changed at will, and the maintenance work of different planetary gear trains of equipment can be dealt with.
In conclusion, by using the dismounting device, the original point supporting mode of the batten is changed into the surface supporting mode of the hydraulic lifting steel structure, the safety coefficient of maintenance operation is enhanced, and the potential safety hazard existing when the planet wheel of the bulldozer is reduced for maintenance is solved; meanwhile, the damage to parts and the optimal assembly position and gap are guaranteed, the parts are not easily damaged, the working efficiency is improved, the labor intensity is reduced, and the device has the characteristics of safety, firmness and durability.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the present invention.