CN107143582A - Self-aligning roller bearing installation method in rocker arm of coal mining machine - Google Patents
Self-aligning roller bearing installation method in rocker arm of coal mining machine Download PDFInfo
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- CN107143582A CN107143582A CN201710424588.7A CN201710424588A CN107143582A CN 107143582 A CN107143582 A CN 107143582A CN 201710424588 A CN201710424588 A CN 201710424588A CN 107143582 A CN107143582 A CN 107143582A
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- roller bearing
- aligning roller
- aligning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/067—Fixing them in a housing
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention discloses self-aligning roller bearing installation method in a kind of rocker arm of coal mining machine, comprise the following steps：First, the installation of false bearings；2nd, the installation of shaft gear and the first self-aligning roller bearing；3rd, the installation of the second self-aligning roller bearing；4th, step one is repeated several times to step 3, the installation in the multiple self-aligning roller bearings of shaft gear two ends first and the second self-aligning roller bearing is completed.The inventive method step is simple, reasonable in design and easy for installation, using effect is good, self-aligning roller bearing is positioned by installing false bearings, energy is easy, be rapidly completed the installation process of self-aligning roller bearing, and installation process is simple, substantially reduce the work of workman, damage self-aligning roller bearing is avoided simultaneously, the service life of self-aligning roller bearing is drastically increased, it is economical and practical.
Description
Technical field
The invention belongs to self-aligning roller bearing mounting technique field, more particularly, to aligning roller in a kind of rocker arm of coal mining machine
Bearing installation method.
Background technology
In order to meet the market demand, product structure changes in the rocker arm of coal mining machine used at present, by rocker arm of coal mining machine
In original Gear Planet Transmission mode use the straight-tooth kind of drive instead, and and and and largely use self-aligning roller bearing in pairs
Carrying, self-aligning roller bearing is contrasted with cylinder roller bearing, can carry bigger load, paired use can play the work of aligning
With, but increased installation difficulty simultaneously.Because after self-aligning roller bearing is installed, the outer ring of self-aligning roller bearing is fixed on housing
On, the inner ring of self-aligning roller bearing can be swung, so self-aligning roller bearing can not keep vertical with shaft gear；In addition, aligning
Roller bearing is that interference fit is connected with shaft gear, due to the center of gravity problem of self-aligning roller bearing during installation, is vacillated now to the left, now to the right serious,
It is difficult to align installation；Secondly because interference fit connection, so self-aligning roller bearing is once arranged on shaft gear, because installing
It is not in place and dismantle reinstall more complicated, operating difficulties.
The content of the invention
Shaken in view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of coal-winning machine
Self-aligning roller bearing installation method in arm, its method and step is simple, reasonable in design and easy for installation, using effect is good, passes through peace
Try to give a false impression bearing to position self-aligning roller bearing, energy is easy, be rapidly completed the installation process of self-aligning roller bearing, and installs
Process is simple, substantially reduces the work of workman, while avoiding damage self-aligning roller bearing, drastically increases aligning roller axle
The service life held, it is economical and practical.
In order to solve the above technical problems, the technical solution adopted by the present invention is：Aligning roller axle in a kind of rocker arm of coal mining machine
Hold installation method, the rocker arm of coal mining machine include housing, the lid end cap for being arranged on the housing both sides and it is multiple be arranged on it is described
In housing and drive connection shaft gear, the two ends of each shaft gear are provided with self-aligning roller bearing, the aligning roller
Bearing is fixedly connected with lid end cap, and the self-aligning roller bearing includes the first self-aligning roller bearing and the second self-aligning roller bearing,
Characterized in that, this method comprises the following steps：The first self-aligning roller bearing is respectively mounted at the two ends of multiple shaft gears
With the method all same of the second self-aligning roller bearing, wherein, any shaft gear two ends install the first self-aligning roller bearing and
Second self-aligning roller bearing, detailed process is as follows：
Step 1: the installation of false bearings：First, false bearings are installed in the side of the housing, and pacified in the side of housing
Capping end cap, and make lid end cap that false bearings are fixed；
Step 2: the installation of shaft gear and the first self-aligning roller bearing：, first will be described after false bearings are fixed in step one
Housing overturns 180 °, and one end of shaft gear is arranged in false bearings, and makes false bearings and the perpendicular laying of shaft gear；So
Afterwards, the first self-aligning roller bearing after Overheating Treatment is installed in the other end of shaft gear, the first self-aligning roller bearing is installed to
Behind position, and lid end cap is installed in the side of the housing, and makes lid end cap that the first self-aligning roller bearing is fixed；
Step 3: the installation of the second self-aligning roller bearing：, will in step 2 after the first self-aligning roller bearing installation
The housing overturns 180 degree again, and the lid end cap that the side of the housing is installed is opened, and dismounting false bearings simultaneously will be through Overheating Treatment
The second self-aligning roller bearing afterwards is arranged on one end of shaft gear, after the second self-aligning roller bearing is installed in place, and in the shell
Lid end cap is installed in the side of body, and makes lid end cap that the second self-aligning roller bearing is fixed；
Step 4: step one is repeated several times to step 3, complete in multiple the first aligning roller of shaft gear two ends axles
Hold the installation with the second self-aligning roller bearing.
Self-aligning roller bearing installation method in above-mentioned rocker arm of coal mining machine, it is characterised in that：The first aligning is rolled in step 2
The heat treatment process all same of second self-aligning roller bearing in the heat treatment of sub- bearing and step 3, wherein, first in step 2
The second self-aligning roller bearing is after Overheating Treatment in self-aligning roller bearing and step 3 so that the first self-aligning roller bearing and second
The temperature of self-aligning roller bearing is 80 DEG C~100 DEG C.
Self-aligning roller bearing installation method in above-mentioned rocker arm of coal mining machine, it is characterised in that：The first aligning roller axle
It is tune that diameter is less than 200mm self-aligning roller bearing, a diameter of 200mm~300mm to hold with second self-aligning roller bearing
Heart roller bearing or diameter are more than 300mm self-aligning roller bearing.
Self-aligning roller bearing installation method in above-mentioned rocker arm of coal mining machine, it is characterised in that：When first aligning roller
When the diameter of bearing and second self-aligning roller bearing is less than 200mm, the heat treatment of the first self-aligning roller bearing in step 2
Heat treatment process with the second self-aligning roller bearing in step 3 is as follows：Using bearing heater to the first self-aligning roller bearing and
The inner ring of second self-aligning roller bearing is heated, wherein, heating-up temperature be 15 DEG C~25 DEG C, the heat time be 4min~
5min；
As a diameter of 200mm~300mm of first self-aligning roller bearing and second self-aligning roller bearing, step
The heat treatment process of the second self-aligning roller bearing is as follows in the heat treatment of first self-aligning roller bearing and step 3 in rapid two：
Step A, for the first time heating：Using bearing heater to the first self-aligning roller bearing and the second self-aligning roller bearing
Inner ring is once heated, wherein, a heating-up temperature is 15 DEG C~25 DEG C, and a heat time is 4min~5min；
Step B, standing：After the first self-aligning roller bearing and the second self-aligning roller bearing are once heated in step A, by first
Self-aligning roller bearing and the second self-aligning roller bearing stand 2min~4min at normal temperatures；
Step C, second of heating：The first self-aligning roller bearing and the second self-aligning roller bearing are quiet at normal temperatures in step B
Put after 2min~4min, then the inner ring of the first self-aligning roller bearing and the second self-aligning roller bearing is carried out using bearing heater
Reheating, wherein, reheating temperature is 15 DEG C~25 DEG C, and the reheating time is 2min~3min；
When the diameter of first self-aligning roller bearing and second self-aligning roller bearing is more than 300mm, step 2
In the first self-aligning roller bearing heat treatment and the second self-aligning roller bearing in step 3 heat treatment process it is as follows：
Step I, for the first time heating：Using bearing heater to the first self-aligning roller bearing and the second self-aligning roller bearing
Inner ring is once heated, wherein, a heating-up temperature is 15 DEG C~25 DEG C, and a heat time is 4min~5min；
Step II, standing：After the first self-aligning roller bearing and the second self-aligning roller bearing are once heated in step I, by
One self-aligning roller bearing and the second self-aligning roller bearing stand 2min at normal temperatures；
Step III, second of heating：The first self-aligning roller bearing and the second self-aligning roller bearing be at normal temperatures in step II
Stand after 2min, then it is secondary to the inner ring progress of the first self-aligning roller bearing and the second self-aligning roller bearing using bearing heater
Heating, wherein, reheating temperature is 15 DEG C~25 DEG C, and the reheating time is 1min~2min；
Step IV, multiplicating step II and step III, until the first self-aligning roller bearing and the second self-aligning roller bearing
Temperature be 80 DEG C~100 DEG C.
Self-aligning roller bearing installation method in above-mentioned rocker arm of coal mining machine, it is characterised in that：The internal diameter ratio of the false bearings
Big 0.2mm~the 0.4mm of internal diameter of first self-aligning roller bearing or the second self-aligning roller bearing；The external diameter of the false bearings compares
Small 0.1mm~the 0.2mm of external diameter of one self-aligning roller bearing or the second self-aligning roller bearing.
The present invention has advantages below compared with prior art：
1st, the inventive method step is simple, reasonable in design and realizes that conveniently, input cost is relatively low.
2nd, when the present invention installs self-aligning roller bearing, false bearings are first installed, then the first self-aligning roller bearing is installed；Install the
Before two self-aligning roller bearings, first the first self-aligning roller bearing is fixed and positioned avoiding the first self-aligning roller bearing and shaft gear
Out of plumb；Secondly, false bearings are dismantled and the second self-aligning roller bearing will be installed, it is complete after treating that the second self-aligning roller bearing is fixed
Into the installation in the self-aligning roller bearing of shaft gear two ends first and the second self-aligning roller bearing, and make the first self-aligning roller bearing and
Second self-aligning roller bearing meets the installation requirements of shaft gear.
3rd, dummy shaft bearing structure of the present invention, simple, reasonable in design and dismounting be easy, using effect is good, it is not necessary to
Heat treatment, by the use of false bearings as interfix part, first completes the installation and positioning of an aligning self-aligning roller bearing, then
The installation and positioning of another self-aligning roller bearing are carried out, installation process avoids self-aligning roller bearing from being dismantled because installing not in place
Reinstall, while it also avoid damaging self-aligning roller bearing, drastically increase the service life of self-aligning roller bearing, it is economical
It is practical.
4th, installation effectiveness of the present invention is high, can installation process that is easy, being rapidly completed self-aligning roller bearing, installation process letter
It is single, substantially reduce the work of workman, saving of work and time.
In summary, the inventive method step is simple, reasonable in design and easy for installation, using effect is good, passes through and installs false
Bearing is positioned to self-aligning roller bearing, and energy is easy, be rapidly completed the installation process of self-aligning roller bearing, and installation process
Simply, the work of workman is substantially reduced, while avoiding damage self-aligning roller bearing, self-aligning roller bearing is drastically increased
Service life, it is economical and practical.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is method flow schematic diagram of the invention.
Fig. 2 is the structural representation of false bearings of the present invention.
Fig. 3 is the structural representation that false bearings of the present invention application is installed.
Description of reference numerals:
1-lid end cap；2-self-aligning roller bearing；3-shaft gear；
4-false bearings；5-hole for hoist.
Embodiment
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, rocker arm of coal mining machine of the present invention includes housing, is arranged on the housing both sides
Lid end cap 1 and it is multiple be arranged in the housing and drive connection shaft gear 3, the two ends of each shaft gear 3 are provided with
Self-aligning roller bearing 2, the self-aligning roller bearing 2 is fixedly connected with lid end cap 1, and the self-aligning roller bearing 2 includes first and adjusted
Heart roller bearing and the second self-aligning roller bearing, it is characterised in that this method comprises the following steps：In multiple shaft gears 3
Two ends be respectively mounted the method all same of the first self-aligning roller bearing and the second self-aligning roller bearing, wherein, in any axle tooth
The first self-aligning roller bearing and the second self-aligning roller bearing are installed in the two ends of wheel 3, and detailed process is as follows：
Step 1: the installation of false bearings：First, false bearings 4 are installed in the side of the housing, and pacified in the side of housing
Capping end cap 1, and make lid end cap 1 that false bearings 4 are fixed；
Step 2: the installation of shaft gear and the first self-aligning roller bearing：After false bearings 4 are fixed in step one, first by institute
State housing and overturn 180 °, and one end of shaft gear 3 is arranged in false bearings 4, and make false bearings 4 and the perpendicular cloth of shaft gear 3
If；Then, the first self-aligning roller bearing after Overheating Treatment, the first self-aligning roller bearing are installed in the other end of shaft gear 3
After being installed in place, and lid end cap 1 is installed in the side of the housing, and is consolidated 1 pair of first self-aligning roller bearing of lid end cap
It is fixed；
Step 3: the installation of the second self-aligning roller bearing：, will in step 2 after the first self-aligning roller bearing installation
The housing overturns 180 degree again, and the lid end cap 1 that the side of the housing is installed is opened, dismantle false bearings 4 and will be through overheat at
The second self-aligning roller bearing after reason is arranged on one end of shaft gear 3, after the second self-aligning roller bearing is installed in place, and described
Lid end cap 1 is installed in the side of housing, and 1 pair of second self-aligning roller bearing of lid end cap is fixed；
Step 4: step one is repeated several times to step 3, complete in multiple two ends the first aligning roller axles of shaft gear 3
Hold the installation with the second self-aligning roller bearing.
In the present embodiment, false bearings 4 need not be heat-treated, and installing/dismounting is convenient, and interfix portion is used as by the use of false bearings 4
Part, first completes the installation and positioning of an aligning self-aligning roller bearing, then carry out the installation of another self-aligning roller bearing with
Positioning, installation process avoids self-aligning roller bearing from dismantling and reinstall because installing not in place, while it also avoid damaging aligning
Roller bearing, drastically increases the service life of self-aligning roller bearing, economical and practical.
In the present embodiment, the second self-aligning roller bearing in the heat treatment of the first self-aligning roller bearing and step 3 in step 2
Heat treatment process all same, wherein, the second self-aligning roller bearing is passed through in the first self-aligning roller bearing and step 3 in step 2
After Overheating Treatment so that the temperature of the first self-aligning roller bearing and the second self-aligning roller bearing is 80 DEG C~100 DEG C.
In the present embodiment, first self-aligning roller bearing and second self-aligning roller bearing are that diameter is less than 200mm
Self-aligning roller bearing.
In the present embodiment, it is heat-treated according to the operating temperature requirements of different-diameter self-aligning roller bearing, it is ensured that first
Self-aligning roller bearing and second self-aligning roller bearing meet the installation requirement of aligning roller axle through Overheating Treatment.
In the present embodiment, when the diameter of first self-aligning roller bearing and second self-aligning roller bearing is less than
During 200mm, in step 2 in the heat treatment of the first self-aligning roller bearing and step 3 the second self-aligning roller bearing it is heat treated
Journey is as follows：The inner ring of the first self-aligning roller bearing and the second self-aligning roller bearing is heated using bearing heater, wherein,
Heating-up temperature is 15 DEG C, and the heat time is 5min；
In the present embodiment, the internal diameters of the false bearings 4 is than the first self-aligning roller bearing or the second self-aligning roller bearing
Big 0.2mm~the 0.4mm of internal diameter；The external diameter of the false bearings 4 is than the first self-aligning roller bearing or the second self-aligning roller bearing
Small 0.1mm~the 0.2mm of external diameter.
In the present embodiment, false bearings 4 are additionally provided with hole for hoist 5, are easy for installation and removal.
It should be noted that false bearings 4 are lightweight compared with self-aligning roller bearing, the internal diameter of the false bearings 4 compares first
Big 0.2mm~the 0.4mm of internal diameter of self-aligning roller bearing or the second self-aligning roller bearing, facilitates shaft gear 1 to be arranged on false bearings 4
It is interior, the external diameters of the false bearings 4 than the first self-aligning roller bearing or the second self-aligning roller bearing the small 0.1mm of external diameter~
0.2mm, facilitates the installation and removal of false bearings 4.
Embodiment 2
In the present embodiment, as different from Example 1：
In the present embodiment, first self-aligning roller bearing and second self-aligning roller bearing be a diameter of 200mm~
300mm self-aligning roller bearing.
In the present embodiment, when first self-aligning roller bearing and a diameter of 200mm of second self-aligning roller bearing
During~300mm, in step 2 in the heat treatment of the first self-aligning roller bearing and step 3 the second self-aligning roller bearing heat treatment
Process is as follows：
Step A, for the first time heating：Using bearing heater to the first self-aligning roller bearing and the second self-aligning roller bearing
Inner ring is once heated, wherein, a heating-up temperature is 15 DEG C, and a heat time is 5min；
Step B, standing：After the first self-aligning roller bearing and the second self-aligning roller bearing are once heated in step A, by first
Self-aligning roller bearing and the second self-aligning roller bearing stand 2min at normal temperatures；
Step C, second of heating：The first self-aligning roller bearing and the second self-aligning roller bearing are quiet at normal temperatures in step B
Put after 2min, then secondary add is carried out to the inner ring of the first self-aligning roller bearing and the second self-aligning roller bearing using bearing heater
Heat, wherein, reheating temperature is 15 DEG C, and the reheating time is 3min；
Other technical process in the present embodiment are same as Example 1.
Embodiment 3
In the present embodiment, as different from Example 1：
In the present embodiment, first self-aligning roller bearing and second self-aligning roller bearing are that diameter is more than 300mm
Self-aligning roller bearing.
In the present embodiment, when the diameter of first self-aligning roller bearing and second self-aligning roller bearing is more than
During 300mm, in step 2 in the heat treatment of the first self-aligning roller bearing and step 3 the second self-aligning roller bearing it is heat treated
Journey is as follows：
Step I, for the first time heating：Using bearing heater to the first self-aligning roller bearing and the second self-aligning roller bearing
Inner ring is once heated, wherein, a heating-up temperature is 15 DEG C, and a heat time is 5min；
Step II, standing：After the first self-aligning roller bearing and the second self-aligning roller bearing are once heated in step I, by
One self-aligning roller bearing and the second self-aligning roller bearing stand 2min at normal temperatures；
Step III, second of heating：The first self-aligning roller bearing and the second self-aligning roller bearing be at normal temperatures in step II
Stand after 2min, then it is secondary to the inner ring progress of the first self-aligning roller bearing and the second self-aligning roller bearing using bearing heater
Heating, wherein, reheating temperature is 15 DEG C, and the reheating time is 2min；
Step IV, multiplicating step II and step III, until the first self-aligning roller bearing and the second self-aligning roller bearing
Temperature be 80 DEG C~100 DEG C.
Other technical process in the present embodiment are same as Example 1.
Embodiment 4
In the present embodiment, as different from Example 1：Heating-up temperature is 25 DEG C, and the heat time is 4min；
Other technical process in the present embodiment are same as Example 1.
Embodiment 5
In the present embodiment, as different from Example 1：Heating-up temperature is 20 DEG C, and the heat time is 4.5min.
Other technical process in the present embodiment are same as Example 1.
Embodiment 6
In the present embodiment, as different from Example 2：Heating-up temperature is 25 DEG C, and a heat time is 4min；
4min is stood under normal temperature；Reheating temperature is 25 DEG C, and the reheating time is 2min.
Other technical process in the present embodiment are same as Example 2.
Embodiment 7
In the present embodiment, as different from Example 2：Heating-up temperature is 20 DEG C, and a heat time is 4.5min；
3min is stood at normal temperatures；Reheating temperature is 20 DEG C, and the reheating time is 2.5min.
Other technical process in the present embodiment are same as Example 2.
Embodiment 8
In the present embodiment, as different from Example 3：Heating-up temperature is 25 DEG C, and a heat time is 4min；Two
Secondary heating-up temperature is 25 DEG C, and the reheating time is 1min.
Other technical process in the present embodiment are same as Example 3.
Embodiment 9
In the present embodiment, as different from Example 3：Heating-up temperature is 20 DEG C, and a heat time is 4.5min；
Reheating temperature is 20 DEG C, and the reheating time is 1.5min.
Other technical process in the present embodiment are same as Example 3.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (5)
1. self-aligning roller bearing installation method in a kind of rocker arm of coal mining machine, the rocker arm of coal mining machine include housing, be arranged on it is described
The lid end cap (1) of housing both sides and it is multiple be arranged in the housing and drive connection shaft gear (3), each shaft gear
(3) two ends are provided with self-aligning roller bearing (2), and the self-aligning roller bearing (2) is fixedly connected with lid end cap (1), described to adjust
Heart roller bearing (2) includes the first self-aligning roller bearing and the second self-aligning roller bearing, it is characterised in that this method includes following
Step：The side of the first self-aligning roller bearing and the second self-aligning roller bearing is respectively mounted at the two ends of multiple shaft gears (3)
Method all same, wherein, the first self-aligning roller bearing and the second self-aligning roller bearing, tool are installed at the two ends of any shaft gear (3)
Body process is as follows：
Step 1: the installation of false bearings：First, false bearings (4) are installed in the side of the housing, and installed in the side of housing
Lid end cap (1), and make lid end cap (1) that false bearings (4) are fixed；
Step 2: the installation of shaft gear and the first self-aligning roller bearing：, first will be described after false bearings (4) are fixed in step one
Housing overturns 180 °, and one end of shaft gear (3) is arranged in false bearings (4), and makes the false bearings (4) be in shaft gear (3)
Vertical runs；Then, the first self-aligning roller bearing after Overheating Treatment, the first aligning are installed in the other end of shaft gear (3)
After roller bearing is installed in place, and in the side installation lid end cap (1) of the housing, and lid end cap (1) is set to roll the first aligning
Sub- bearing is fixed；
Step 3: the installation of the second self-aligning roller bearing：, will be described in step 2 after the first self-aligning roller bearing installation
Housing overturns 180 degree again, and the lid end cap (1) that the side of the housing is installed is opened, dismounting false bearings (4) and will be through overheat at
The second self-aligning roller bearing after reason is arranged on one end of shaft gear (3), after the second self-aligning roller bearing is installed in place, and in institute
Lid end cap (1) is installed in the side for stating housing, and makes lid end cap (1) that the second self-aligning roller bearing is fixed；
Step 4: step one is repeated several times to step 3, complete in the first self-aligning roller bearing of multiple shaft gear (3) two ends
With the installation of the second self-aligning roller bearing.
2. according to self-aligning roller bearing installation method in the rocker arm of coal mining machine described in claim 1, it is characterised in that：In step 2
The heat treatment process all same of second self-aligning roller bearing in the heat treatment of first self-aligning roller bearing and step 3, wherein, step
In rapid two in first self-aligning roller bearing and step 3 the second self-aligning roller bearing after Overheating Treatment so that the first aligning roller
The temperature of bearing and the second self-aligning roller bearing is 80 DEG C~100 DEG C.
3. according to self-aligning roller bearing installation method in the rocker arm of coal mining machine described in claim 1 or 2, it is characterised in that：It is described
First self-aligning roller bearing and second self-aligning roller bearing are the self-aligning roller bearings, a diameter of that diameter is less than 200mm
200mm~300mm self-aligning roller bearing or diameter is more than 300mm self-aligning roller bearing.
4. according to self-aligning roller bearing installation method in the rocker arm of coal mining machine described in claim 3, it is characterised in that：When described
When the diameter of one self-aligning roller bearing and second self-aligning roller bearing is less than 200mm, the first aligning roller axle in step 2
The heat treatment process of the second self-aligning roller bearing is as follows in the heat treatment held and step 3：Using bearing heater to the first aligning
The inner ring of roller bearing and the second self-aligning roller bearing is heated, wherein, heating-up temperature is 15 DEG C~25 DEG C, and the heat time is
4min~5min；
As a diameter of 200mm~300mm of first self-aligning roller bearing and second self-aligning roller bearing, step 2
In the first self-aligning roller bearing heat treatment and the second self-aligning roller bearing in step 3 heat treatment process it is as follows：
Step A, for the first time heating：Using bearing heater to the first self-aligning roller bearing and the inner ring of the second self-aligning roller bearing
Once heated, wherein, a heating-up temperature is 15 DEG C~25 DEG C, and a heat time is 4min~5min；
Step B, standing：After the first self-aligning roller bearing and the second self-aligning roller bearing are once heated in step A, by the first aligning
Roller bearing and the second self-aligning roller bearing stand 2min~4min at normal temperatures；
Step C, second of heating：The first self-aligning roller bearing and the second self-aligning roller bearing are stood at normal temperatures in step B
After 2min~4min, then the inner ring progress two using bearing heater to the first self-aligning roller bearing and the second self-aligning roller bearing
Secondary heating, wherein, reheating temperature is 15 DEG C~25 DEG C, and the reheating time is 2min~3min；
When the diameter of first self-aligning roller bearing and second self-aligning roller bearing is more than 300mm, the in step 2
The heat treatment process of the second self-aligning roller bearing is as follows in the heat treatment of one self-aligning roller bearing and step 3：
Step I, for the first time heating：Using bearing heater to the first self-aligning roller bearing and the inner ring of the second self-aligning roller bearing
Once heated, wherein, a heating-up temperature is 15 DEG C~25 DEG C, and a heat time is 4min~5min；
Step II, standing：After the first self-aligning roller bearing and the second self-aligning roller bearing are once heated in step I, first is adjusted
Heart roller bearing and the second self-aligning roller bearing stand 2min at normal temperatures；
Step III, second of heating：The first self-aligning roller bearing and the second self-aligning roller bearing are stood at normal temperatures in step II
After 2min, then bearing heater is used to carry out secondary add to the inner ring of the first self-aligning roller bearing and the second self-aligning roller bearing
Heat, wherein, reheating temperature is 15 DEG C~25 DEG C, and the reheating time is 1min~2min；
Step IV, multiplicating step II and step III, until the temperature of the first self-aligning roller bearing and the second self-aligning roller bearing
Spend for 80 DEG C~100 DEG C.
5. according to self-aligning roller bearing installation method in the rocker arm of coal mining machine described in claim 1 or 2, it is characterised in that：It is described
Internal diameter big 0.2mm~0.4mm of the internal diameter of false bearings (4) than the first self-aligning roller bearing or the second self-aligning roller bearing；Institute
State external diameter small 0.1mm~0.2mm of the external diameter than the first self-aligning roller bearing or the second self-aligning roller bearing of false bearings (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| GB2074666A (en) * | 1980-04-30 | 1981-11-04 | Hitachi Ltd | Speed Change Gearing for Crusher |
| CN201653731U (en) * | 2010-04-30 | 2010-11-24 | 三一重型装备有限公司 | Eccentric load-bearing capability testing device of coal-mining machine rocker |
| CN102112760A (en) * | 2008-09-24 | 2011-06-29 | 三菱重工业株式会社 | Speed-up device for wind-driven generator and support mechanism for rotating shaft |
| CN202851829U (en) * | 2012-09-19 | 2013-04-03 | 沈阳北方重矿机械有限公司 | Double planet speed reducer of coal cutter tractive portion |
| CN203189668U (en) * | 2013-04-17 | 2013-09-11 | 西安煤矿机械有限公司 | Duplex toothed rail wheel set used for coal mining machine |
| CN104879062A (en) * | 2015-05-22 | 2015-09-02 | 中国矿业大学 | Double-drill drilling-type coal mining machine drill stem bearing stabilizer |
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2017
- 2017-06-07 CN CN201710424588.7A patent/CN107143582B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2074666A (en) * | 1980-04-30 | 1981-11-04 | Hitachi Ltd | Speed Change Gearing for Crusher |
| CN102112760A (en) * | 2008-09-24 | 2011-06-29 | 三菱重工业株式会社 | Speed-up device for wind-driven generator and support mechanism for rotating shaft |
| CN201653731U (en) * | 2010-04-30 | 2010-11-24 | 三一重型装备有限公司 | Eccentric load-bearing capability testing device of coal-mining machine rocker |
| CN202851829U (en) * | 2012-09-19 | 2013-04-03 | 沈阳北方重矿机械有限公司 | Double planet speed reducer of coal cutter tractive portion |
| CN203189668U (en) * | 2013-04-17 | 2013-09-11 | 西安煤矿机械有限公司 | Duplex toothed rail wheel set used for coal mining machine |
| CN104879062A (en) * | 2015-05-22 | 2015-09-02 | 中国矿业大学 | Double-drill drilling-type coal mining machine drill stem bearing stabilizer |
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| CN107143582B (en) | 2018-10-12 |
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Address after: 710200 No. 7, Middle Section of Jingpu Road, Jingwei New City, Jingkai District, Xi'an City, Shaanxi Province Patentee after: Xi'an Coal Mining Machinery Co., Ltd. Address before: 710021 No. 8 Shangji Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee before: Xi'an Coal Mining Machinery Co., Ltd. |