CN113847393B - Integral type box speed reducer for coal mine underground crusher and assembling method - Google Patents
Integral type box speed reducer for coal mine underground crusher and assembling method Download PDFInfo
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- CN113847393B CN113847393B CN202110909312.4A CN202110909312A CN113847393B CN 113847393 B CN113847393 B CN 113847393B CN 202110909312 A CN202110909312 A CN 202110909312A CN 113847393 B CN113847393 B CN 113847393B
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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
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
- F16H57/0025—Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/038—Gearboxes for accommodating bevel gears
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02069—Gearboxes for particular applications for industrial applications
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Crushing And Grinding (AREA)
Abstract
An integral box speed reducer for a coal mine underground crusher and an assembly method of the integral box speed reducer comprise an integral box body, a first shaft assembly, a second shaft assembly and an output shaft assembly, wherein a first shaft hole is formed in one end inside the integral box body; the invention adopts an integral box body structure, the integral strength of the box body is high, each bearing position is a full circle, and the precision of the bearing position is high; the integral box body does not need to be closed to connect with a bolt, the reducer is more reliable to use, the inner ring and the outer ring of the spherical roller bearing of the output shaft are kept parallel and relatively fixed in the assembling process, and the mounting efficiency and the safety are greatly improved.
Description
Technical Field
The invention relates to the technical field of coal mine production equipment, in particular to an integral type box body speed reducer for a coal mine underground crusher and an assembling method.
Background
At present, the reduction gear for the colliery underground working face breaker is mostly upper and lower subdivision formula, promptly, the bearing position is two semicircles and constitutes, adopts bolt and round pin axle to fix a position and fasten, installs on the breaker with the whole suspension type of drive division of parts such as driving motor, couplings constitution, the reduction gear vibration is very big and the reduction gear box is key bearing member in the breaker working process, the easy pine that becomes of case assembling bolt influences the bearing position precision to influence reduction gear bearing and gear life, reduce quality of service. In the process of integrally installing the two shafts and the three shafts into the box body, the efficiency is low when the outer ring is installed into the box body due to the characteristic that the outer ring of the spherical roller bearing can rotate relative to the inner ring; and when adjusting the outer lane in the installation, personnel have the potential safety hazard in the below adjustment.
Disclosure of Invention
In order to solve the technical problems in the prior art, a need exists for an integral box speed reducer for a coal mine underground crusher, which comprises an integral box body, a first shaft assembly, a second shaft assembly and an output shaft assembly, wherein an opening is formed in the side portion of the integral box body, a box cover is arranged at the opening, a first shaft hole is formed in one end inside the integral box body, a second shaft hole and a third shaft hole are formed in the inner wall of one side, opposite to the box cover, of the integral box body, a cooler is arranged at one end, located in the box cover, inside the integral box body, the first shaft assembly is installed in the first shaft hole, the upper end of the second shaft assembly is connected with a box cover bearing, the lower end of the second shaft assembly is connected with the second shaft hole, the second shaft assembly is meshed with the first shaft assembly, the upper end of the output shaft assembly is connected with the box cover bearing, the lower end of the output shaft assembly is connected with the third shaft hole, and the output shaft assembly is meshed with the second shaft assembly, so that the output shaft assembly and the second shaft assembly form an integral structure.
Preferably, the first shaft assembly comprises a first spiral bevel gear shaft, a first cylindrical roller bearing A, a first contact bearing, a first cylindrical roller bearing B, a first bearing cup and a first check ring, the first cylindrical roller bearing A is arranged in the first shaft hole and is located at one end close to the inside of the integrated box body, the first cylindrical roller bearing A is fixed through the first check ring, the first bearing cup is arranged in the first shaft hole and is located at one end far away from the first cylindrical roller bearing A, and the first contact bearing and the first cylindrical roller bearing B are sequentially installed in the first bearing cup.
Preferably, the second shaft assembly includes a second spiral bevel gear, a second gear shaft, a second spherical roller bearing, a second contact bearing, a second cylindrical roller bearing, and a second bearing cup, the second cylindrical roller bearing is fixed at the lower end of the second gear shaft, the second cylindrical roller bearing is located inside the second shaft hole, the second spiral bevel gear is disposed at the upper portion of the second gear shaft, the second spiral bevel gear is engaged with the first spiral bevel gear shaft, the second bearing cup is disposed at the upper end of the second gear shaft, the second spherical roller bearing and the second contact bearing are sequentially disposed inside the second bearing cup, and the second bearing cup is mounted on the case cover.
Preferably, the output shaft assembly comprises an output shaft member, an output cylindrical gear, an output spherical roller bearing a, an output spherical roller bearing B and a fastening assembly, the output spherical roller bearing a is arranged at the upper end of the output shaft member, the upper end of the output shaft member is connected with the box cover, the output spherical roller bearing B is arranged at the lower end of the output shaft member, the output spherical roller bearing B is fixed on the output shaft member through the fastening assembly, the output spherical roller bearing B is higher than the second cylindrical roller bearing, the output cylindrical gear is arranged on the output shaft member and is positioned above the output spherical roller bearing B, and the output cylindrical gear is meshed with the second gear shaft.
Preferably, the fastening assembly comprises an anti-rotation part and a fastening part, the anti-rotation part is sleeved on the output shaft part and is positioned below the output spherical roller bearing B, and the fastening part is sleeved on the output shaft part and is positioned below the anti-rotation part and is used for enabling the anti-rotation part to be tightly attached to the output spherical roller bearing B.
The method for assembling the integral type box body speed reducer for the coal mine underground crusher also needs to be provided, which comprises the following steps,
(1) Placing the integrated box body on the platform, wherein the surface of the opening faces upwards, and leveling to ensure that the surface of the opening is parallel to the horizontal plane;
(2) Installing a first cylindrical roller bearing A in the first shaft hole, and axially fixing by using a first check ring;
(3) A first spiral bevel gear shaft is arranged in a first shaft hole in the integrated box body, and a first cylindrical roller bearing A is sleeved on the first spiral bevel gear shaft;
(4) Sleeving a first bearing cup on a first spiral bevel gear shaft, positioning the first bearing cup in a first shaft hole, and then sequentially installing a first cylindrical roller bearing B and a first contact bearing in the first bearing cup;
(5) Mounting a second cylindrical roller bearing at the lower end of the second gear shaft, and mounting the second cylindrical roller bearing in a second shaft hole;
(6) Assembling the box cover, the second shaft assembly, the output shaft assembly and the cooler together to form an integrated structure;
(7) Sleeving an output spherical roller bearing B at the lower end of an output shaft part, locking the output spherical roller bearing B by using an auxiliary mounting tool and a fastener, and enabling an inner ring and an outer ring of the output spherical roller bearing B to be parallel by using the auxiliary mounting tool, namely enabling the outer ring not to horizontally rotate;
(8) Integrally hoisting the box cover, a second shaft assembly, an output shaft assembly and a cooler to form an integrated structure, leveling, and slowly loading the integrated structure into the box body together;
(9) And (4) dismantling the auxiliary installation tool, and replacing the auxiliary installation tool with an anti-rotation part used in a product.
According to the technical scheme, the integral box speed reducer for the coal mine underground crusher and the assembling method have the advantages that the integral box structure is adopted, the integral strength of the box is high, the bearing positions are full circles, and the bearing position precision is high; the integral box body does not need a box closing connecting bolt, the reducer is more reliable to use, the inner ring and the outer ring of the spherical roller bearing of the output shaft are kept parallel and relatively fixed in the assembling process, and the mounting efficiency and the safety are greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the present invention.
FIG. 2 is a schematic structural diagram of the integrated case of the present invention.
FIG. 3 is a schematic view of the connection structure of the integrated box and the first shaft assembly.
FIG. 4 is a schematic view of the connection structure of the second shaft assembly and the output shaft assembly according to the present invention.
Fig. 5 is a schematic structural view of the auxiliary mounting tool of the present invention.
In the figure: the integrated type gearbox comprises an integrated box body 01, a first shaft hole 11, a second shaft hole 12, a third shaft hole 13, a first shaft assembly 02, a first spiral bevel gear shaft 21, a first cylindrical roller bearing A22, a first contact bearing 23, a first cylindrical roller bearing B24, a first bearing cup 25, a first check ring 26, a second shaft assembly 03, a second spiral bevel gear 31, a second gear shaft 32, a second spherical roller bearing 33, a second contact bearing 34, a second cylindrical roller bearing 35, a second bearing cup 36, an output shaft assembly 04, an output shaft assembly 41, an output cylindrical gear 42, an output spherical roller bearing A43, an output spherical roller bearing B44, a fastening assembly 45, an anti-rotation member 451, a fastening member 452, a box cover 05, a cooler 06, an auxiliary mounting tool 07, an annular sunken groove 71 and a circular hole 72.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", "lower", and the like, indicate orientations or positional relationships, are used merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the invention.
Referring to fig. 1 to 5, an integral type box speed reducer for a coal mine underground crusher comprises an integral type box 01, a first shaft assembly 02, a second shaft assembly 03 and an output shaft assembly 04, wherein an opening is formed in the side portion of the integral type box 01, a box cover 05 is arranged at the opening, a first shaft hole 11 is formed in one end inside the integral type box 01, a second shaft hole 12 and a third shaft hole 13 are formed in the inner wall of one side, right opposite to the box cover 05, inside the integral type box 01, a cooler 06 is arranged at one end, located at the box cover 05, inside the integral type box 01, of the first shaft assembly 02, the first shaft assembly 02 is installed in the first shaft hole 11, the upper end of the second shaft assembly 03 is in bearing connection with the box cover 05, the lower end of the second shaft assembly 03 is connected with the second shaft hole 12, the second shaft assembly 03 is meshed with the first shaft assembly 02, the upper end of the output shaft assembly 04 is in bearing connection with the box cover 05, the lower end of the output shaft assembly is connected with the third shaft hole 13, the output shaft assembly 04 is meshed with the second shaft assembly 03, and the output shaft assembly 04 and the output shaft assembly 03 and the output shaft assembly 04 and the second shaft assembly 03 forms an integral type structure.
The first shaft assembly 02 comprises a first spiral bevel gear shaft 21, a first cylindrical roller bearing A22, a first contact bearing 23, a first cylindrical roller bearing B24, a first bearing cup 25 and a first retainer ring 26, wherein the first cylindrical roller bearing A22 is arranged in the first shaft hole 11 and is positioned at one end close to the inside of the integrated box body 01, the first cylindrical roller bearing A22 is fixed through the first retainer ring 26, and a bearing outer ring, a retainer and rollers of the first cylindrical roller bearing A22 can be separated from an inner ring. A first bearing cup 25 is arranged in the first shaft bore 11 at the end remote from the first cylindrical roller bearing a22, the first contact bearing 23 and the first cylindrical roller bearing B24 being mounted in succession in the first bearing cup 25.
The second shaft assembly 03 comprises a second spiral bevel gear 31, a second gear shaft 32, a second spherical roller bearing 33, a second contact bearing 34, a second cylindrical roller bearing 35 and a second bearing cup 36, wherein the second cylindrical roller bearing 35 is fixed at the lower end of the second gear shaft 32, the second cylindrical roller bearing 35 is positioned inside the second shaft hole 12, and a bearing outer ring, a retainer and rollers of the second cylindrical roller bearing 35 can be separated from an inner ring. The second spiral bevel gear 31 is disposed on the upper portion of the second gear shaft 32, the second spiral bevel gear 31 is engaged with the first spiral bevel gear shaft 21, the second bearing cup 36 is disposed on the upper end of the second gear shaft 32, the second spherical roller bearing 33 and the second contact bearing 34 are sequentially disposed inside the second bearing cup 36, and the second bearing cup 36 is mounted on the case cover 05.
The output shaft assembly 04 comprises an output shaft member 41, an output cylindrical gear 42, an output spherical roller bearing A43, an output spherical roller bearing B44 and a fastening assembly 45, wherein the output spherical roller bearing A43 is arranged at the upper end of the output shaft member 41, the upper end of the output shaft member 41 is connected with the box cover 05, the output spherical roller bearing B44 is arranged at the lower end of the output shaft member 41, the output spherical roller bearing B44 is fixed on the output shaft member 41 through the fastening assembly 45, the position of the output spherical roller bearing B44 is higher than that of the second cylindrical roller bearing 35, the output cylindrical gear 42 is arranged on the output shaft member 41 and is positioned above the output spherical roller bearing B44, and the output cylindrical gear 42 is meshed with the second gear shaft 32.
The fastening assembly 45 comprises an anti-rotation part 451 and a fastening part 452, wherein the anti-rotation part 451 is sleeved on the output shaft part 41 and is positioned below the output spherical roller bearing B44, and the fastening part 452 is sleeved on the output shaft part 41 and is positioned below the anti-rotation part 451 and is used for enabling the anti-rotation part 451 to be tightly attached to the output spherical roller bearing B44.
When the integral type box body speed reducer for the coal mine underground crusher is assembled, the integral type box body speed reducer can be installed according to the following assembling sequence,
(1) Placing the integrated box body 01 on a platform, wherein the surface of the opening is upward and leveled, and the surface of the opening is ensured to be parallel to a horizontal plane;
(2) The first cylindrical roller bearing a22 is installed in the first shaft hole 11 and axially fixed using the first retainer ring 26; in this step, it is necessary to mount the bearing outer race, the cage, and the rollers in the first cylindrical roller bearing a22 into the first shaft hole 11 first, and fix them axially using the first retainer ring 26, while the bearing inner race in the first cylindrical roller bearing a22 is fixed to the first helical bevel gear shaft 21;
(3) A first spiral bevel gear shaft 21 is arranged in a first shaft hole 11 in the integrated box body 01, and a first cylindrical roller bearing A22 is sleeved on the first spiral bevel gear shaft 21;
(4) Sleeving a first bearing cup 25 on the first spiral bevel gear shaft 21, positioning the first bearing cup 25 in the first shaft hole 11, and then sequentially installing a first contact bearing 23 and a first cylindrical roller bearing B24 in the first bearing cup 25;
(5) Mounting the second cylindrical roller bearing 35 at the lower end of the second gear shaft 32, and mounting the second cylindrical roller bearing 35 in the second shaft hole 12; in this step, it is necessary to mount the bearing outer race, the cage, and the rollers in the second cylindrical roller bearing 35 into the second shaft hole 12 and fix them, while the bearing inner race in the second cylindrical roller bearing 35 is fixed to the lower end of the second gear shaft 32;
(6) Assembling the box cover 05 with the second shaft assembly 03, the output shaft assembly 04 and the cooler 06 to form an integrated structure;
(7) Sleeving an output spherical roller bearing B44 at the lower end of an output shaft part 41, locking the output spherical roller bearing B44 by using an auxiliary mounting tool 07 and a fastener 452, and enabling the inner ring and the outer ring of the output spherical roller bearing B44 to be parallel by using the auxiliary mounting tool 07, namely, the outer ring does not horizontally rotate; the upper surface of the auxiliary mounting tool 07 is provided with an annular sinking groove 71, the lower surface of the auxiliary mounting tool 07 is provided with a round hole 72, the auxiliary mounting tool 07 can be conveniently sleeved on the output shaft 41, the round hole 72 is communicated with the annular sinking groove 71 and is concentric with the annular sinking groove 71, the diameter of the round hole 72 is smaller than that of the annular sinking groove 71, wherein the diameter of the round hole 72 is 5mm smaller than the outer diameter of the output spherical roller bearing B44, and the outer diameter of the annular sinking groove 71 is 0.05mm larger than that of the output shaft 41 at the mounting position; when fixing, the upper surface of the auxiliary mounting tool 07 is in contact with the bearing outer ring of the output spherical roller bearing B44, and the bottom surface of the annular sunken groove 71 is in contact with the bearing inner ring of the output spherical roller bearing B44;
(8) Integrally hoisting the box cover 05, a second shaft assembly 03, an output shaft assembly 04 and a cooler 06 to form an integrated structure, leveling, and slowly loading the integrated structure into the box body; in this step, when the case cover 05 is attached to the integrated structure of the second shaft assembly 03, the output shaft assembly 04, and the cooler 06, the output spherical roller bearing B44 is first fitted into the third shaft hole 13, and then rotationally adjusted so that the inner race of the second cylindrical roller bearing 35 is fitted into the second shaft hole 12;
(9) The auxiliary mounting tool 07 is removed and replaced with an anti-rotation member 451 used in the product.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (3)
1. The method for assembling the integral box speed reducer for the coal mine underground crusher is characterized by comprising the following steps of: the integrated box speed reducer comprises an integrated box body, a first shaft assembly, a second shaft assembly and an output shaft assembly, wherein an opening is formed in the side part of the integrated box body, a box cover is arranged at the opening, a first shaft hole is formed in one end inside the integrated box body, a second shaft hole and a third shaft hole are formed in the inner wall of one side, opposite to the box cover, of the inside of the integrated box body, a cooler is arranged at one end, located on the box cover, inside the integrated box body, the first shaft assembly is installed in the first shaft hole, the upper end of the second shaft assembly is connected with a box cover bearing, the lower end of the second shaft assembly is connected with the second shaft hole, the second shaft assembly is meshed with the first shaft assembly, the upper end of the output shaft assembly is connected with the box cover bearing, the lower end of the output shaft assembly is connected with the third shaft hole, and the output shaft assembly is meshed with the second shaft assembly, so that the output shaft assembly and the second shaft assembly form an integrated structure;
the first shaft assembly comprises a first spiral bevel gear shaft, a first cylindrical roller bearing A, a first contact bearing, a first cylindrical roller bearing B, a first bearing cup and a first check ring, the first cylindrical roller bearing A is arranged in a first shaft hole and is positioned at one end close to the interior of the integrated box body, the first cylindrical roller bearing A is fixed through the first check ring, the first bearing cup is arranged in the first shaft hole and is positioned at one end far away from the first cylindrical roller bearing A, and the first contact bearing and the first cylindrical roller bearing B are sequentially arranged in the first bearing cup;
the second shaft assembly comprises a second spiral bevel gear, a second gear shaft, a second spherical roller bearing, a second contact bearing, a second cylindrical roller bearing and a second bearing cup, the second cylindrical roller bearing is fixed at the lower end of the second gear shaft and is positioned inside the second shaft hole, the second spiral bevel gear is arranged at the upper part of the second gear shaft and is meshed with the first spiral bevel gear shaft, the second bearing cup is arranged at the upper end of the second gear shaft, the second spherical roller bearing and the second contact bearing are sequentially arranged inside the second bearing cup, and the second bearing cup is installed on the box cover;
the output shaft assembly comprises an output shaft part, an output cylindrical gear, an output spherical roller bearing A, an output spherical roller bearing B and a fastening assembly, wherein the output spherical roller bearing A is arranged at the upper end of the output shaft part, the upper end of the output shaft part is connected with the box cover, the output spherical roller bearing B is arranged at the lower end of the output shaft part, the output spherical roller bearing B is fixed on the output shaft part through the fastening assembly, the position of the output spherical roller bearing B is higher than that of the second cylindrical roller bearing, the output cylindrical gear is arranged on the output shaft part and is positioned above the output spherical roller bearing B, and the output cylindrical gear is meshed with a second gear shaft;
the fastening assembly comprises an anti-rotation part and a fastening piece, the anti-rotation part is sleeved on the output shaft part and is positioned below the output spherical roller bearing B, and the fastening piece is sleeved on the output shaft part and is positioned below the anti-rotation part and is used for enabling the anti-rotation part to be tightly attached to the output spherical roller bearing B;
the assembly method comprises the following steps of,
(1) Placing the integrated box body on the platform, wherein the surface of the opening faces upwards and is leveled, and the surface of the opening is ensured to be parallel to the horizontal plane;
(2) Installing a first cylindrical roller bearing A in a first shaft hole, and axially fixing by using a first check ring;
(3) A first spiral bevel gear shaft is arranged in a first shaft hole in the integrated box body, and a first cylindrical roller bearing A is sleeved on the first spiral bevel gear shaft;
(4) Sleeving a first bearing cup on a first spiral bevel gear shaft, positioning the first bearing cup in a first shaft hole, and then sequentially installing a first contact bearing and a first cylindrical roller bearing B in the first bearing cup;
(5) Mounting a second cylindrical roller bearing at the lower end of the second gear shaft, and mounting the second cylindrical roller bearing in a second shaft hole; a bearing outer ring, a retainer and rollers in the second cylindrical roller bearing are required to be installed in the second shaft hole and fixed, and a bearing inner ring in the second cylindrical roller bearing is fixed at the lower end of the second gear shaft;
(6) Assembling the box cover, the second shaft assembly, the output shaft assembly and the cooler together to form an integrated structure;
(7) Sleeving an output spherical roller bearing B at the lower end of an output shaft part, locking the output spherical roller bearing B by using an auxiliary mounting tool and a fastener, and enabling an inner ring and an outer ring of the output spherical roller bearing B to be parallel by using the auxiliary mounting tool, namely, the outer ring does not horizontally rotate; when the fixing is carried out, the upper surface of the auxiliary mounting tool is in contact with the bearing outer ring of the output spherical roller bearing B, and the bottom surface of the annular sunken groove is in contact with the bearing inner ring of the output spherical roller bearing B44; the auxiliary installation tool is characterized in that an annular sinking groove is formed in the surface of the upper part of the auxiliary installation tool, a round hole is formed in the surface of the lower part of the auxiliary installation tool, the round hole is communicated with and concentric with the annular sinking groove, and the diameter of the round hole is smaller than that of the annular sinking groove;
(8) Integrally hoisting the box cover, a second shaft assembly, an output shaft assembly and a cooler to form an integrated structure, leveling, and slowly loading the integrated structure into the box body together;
(9) And (4) dismantling the auxiliary installation tool, and replacing the auxiliary installation tool with an anti-rotation part used in a product.
2. The method for assembling the integral type box body speed reducer for the coal mine underground crusher according to claim 1, which is characterized in that: in the step (2), the bearing outer ring, the retainer and the rollers in the first cylindrical roller bearing a need to be installed in the first shaft hole first, and are axially fixed by using the first retainer ring, and the bearing inner ring in the first cylindrical roller bearing a is fixed on the first spiral bevel gear shaft.
3. The method for assembling the integral type box body speed reducer for the coal mine underground crusher according to claim 1, which is characterized in that: in the step (8), when the integrated structure formed by the box cover, the second shaft assembly, the output shaft assembly and the cooler is installed, the output spherical roller bearing B is firstly installed in the third shaft hole, and then the rotation adjustment is carried out, so that the inner ring of the second cylindrical roller bearing is installed in the second shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110909312.4A CN113847393B (en) | 2021-08-09 | 2021-08-09 | Integral type box speed reducer for coal mine underground crusher and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110909312.4A CN113847393B (en) | 2021-08-09 | 2021-08-09 | Integral type box speed reducer for coal mine underground crusher and assembling method |
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| Publication Number | Publication Date |
|---|---|
| CN113847393A CN113847393A (en) | 2021-12-28 |
| CN113847393B true CN113847393B (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110909312.4A Active CN113847393B (en) | 2021-08-09 | 2021-08-09 | Integral type box speed reducer for coal mine underground crusher and assembling method |
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