CN214888748U - Alloy gear shaft convenient to maintain for coal mining machinery - Google Patents

Abstract

The utility model discloses an alloy gear shaft convenient for maintenance for coal mining machinery, which relates to the technical field of gear shaft spare and accessory parts, and comprises a fixed shaft, wherein a plurality of connecting grooves are respectively formed at the left end and the right end of the fixed shaft, a gear disc is fixed at the middle part of the fixed shaft, a first longitudinal oil duct is formed at the axial center of the fixed shaft, and a plurality of radial oil ducts are formed at the middle part of the gear disc; the left and right sides of fixed axle is equallyd divide and is had the connecting axle, two the one end that the connecting axle is close to the fixed axle all is fixed with a plurality of connection lugs, two the one end that the fixed axle was kept away from to the connecting axle all is fixed with the location axle. The utility model discloses a location axle and location bearing have guaranteed that the gear shaft can fix a position in the reduction gear, and the joint through spread groove and connection lug can make the connecting axle drive the fixed axle rotatory, can effectively avoid the difficulty of dismantling, can effectively strengthen changing damage spare part.

Description

Alloy gear shaft convenient to maintain for coal mining machinery

Technical Field

The utility model relates to a gear shaft spare and accessory part technical field specifically is a coal mining machinery is with alloy gear shaft convenient to maintain.

Background

The coal mining machine is a large complex system integrating machinery, electricity and hydraulic pressure, the working environment is severe, and if a fault occurs, the whole coal mining work is interrupted, so that huge economic loss is caused. The machine is used for cutting bottom slots on the coal working faces of common medium and small-sized mine underground slowly-inclined thin coal seams and extremely-thin composite coal seams to achieve the effect of cutting and coal falling. Gear shaft refers to a mechanical part that supports and rotates with a rotating part to transmit motion, torque, or bending moment.

Chinese authorized utility model publication (announcement) no: the alloy gear shaft convenient to maintain for the coal mining machinery disclosed in CN201921619989.9 is clamped between a connecting shaft head and a gear shaft head, and the connecting shaft head and the gear shaft head part can be replaced independently, so that the effect that after part of the alloy gear shaft is damaged, part of the alloy gear shaft can be replaced; however, in practice, through the structural design of the above-mentioned comparison patent, the situation that the shaft sleeve and the connecting shaft are difficult to separate occurs, so that the connecting shaft has the disadvantages of difficult replacement operation and difficult maintenance.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a coal mining machinery is with alloy gear shaft convenient to maintain has solved the problem that the operation difficulty was changed, the maintenance was difficult to maintain with the alloy gear shaft convenient to maintain to current coal mining machinery that provides in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

an alloy gear shaft convenient to maintain for coal mining machinery comprises a fixed shaft, wherein a plurality of connecting grooves are formed in the left end and the right end of the fixed shaft respectively, a gear disc is fixed in the middle of the fixed shaft, a first longitudinal oil duct is formed in the axial center of the fixed shaft, and a plurality of radial oil ducts are formed in the middle of the gear disc;

the left and right sides of fixed axle is equallyd divide and is had the connecting axle, two the one end that the connecting axle is close to the fixed axle all is fixed with a plurality of connection lugs, two the one end that the fixed axle was kept away from to the connecting axle all is fixed with the location axle, two location bearing is all installed to the location axle.

Further, a plurality of teeth of a cogwheel of even distribution on the toothed disc, it is a plurality of radial oil duct all is located the teeth of a cogwheel center department of toothed disc and runs through the toothed disc.

Furthermore, the two positioning shafts and the two connecting shafts are fixed, second longitudinal oil ducts are formed in the centers of the two positioning shafts and the two connecting shafts, and the first longitudinal oil ducts and the second longitudinal oil ducts are located on the same axis and have the same diameter.

Furthermore, two the connecting axle is the symmetric form and distributes in the left and right sides of fixed axle, two a plurality of connecting lugs on the connecting axle all cooperate with a plurality of spread grooves of the left and right sides on the fixed axle.

Furthermore, two the location bearing is the symmetric form and distributes in the left and right sides of fixed axle, two one side of location bearing all pastes two connecting axle surfaces of tight and fixed mounting on the location axle.

Furthermore, a plurality of connecting lugs are distributed on the connecting shaft in an annular array, and a plurality of connecting grooves are distributed on the fixed shaft in an annular array.

Furthermore, the connecting lugs are matched with the connecting grooves, and the number of the connecting grooves is equal to that of the connecting lugs.

The alloy gear shaft for the coal mining machinery is convenient to maintain and has a combined structure, the connecting shaft is fixed with the connecting shaft through the positioning shaft, the positioning shaft transmits external power to the connecting shaft, the positioning bearing on the positioning shaft avoids the change of the positions of the connecting shaft and the fixing shaft, the connecting shaft and the fixing shaft are clamped and connected through the connecting lug and the connecting groove, can be replaced independently, is convenient to disassemble and clean, can replace the part after the part is damaged, reduces the maintenance cost, drives the fixed shaft to rotate by the connecting shaft, drives the gear disc to rotate by the fixed shaft, lubricating oil can be filled into the gear shaft from the first longitudinal oil passage and the second longitudinal oil passage without disassembly through the positioning shaft, the connecting shaft and the longitudinal oil passage at the central part of the fixing shaft, the radial oil duct ensures that lubricating oil can be uniformly filled into the meshing part of the gear, and the gear shaft is convenient to maintain.

(III) advantageous effects

The utility model provides a coal mining machinery is with alloy gear shaft convenient to maintain possesses following beneficial effect:

(1) this coal mining machinery is with alloy gear shaft convenient to maintain through location axle and location bearing, has guaranteed that the gear shaft can fix a position in the reduction gear, and the joint through spread groove and connection lug can make the connecting axle drive the fixed axle rotatory, can effectively avoid the difficulty of dismantling, can effectively strengthen changing damage spare part.

(2) This coal mining machinery is with alloy gear shaft convenient to maintain, through the toothed disc structure of fixed epaxial, it can drive other equipment operation to have guaranteed that the gear shaft, can convenient and fast pour into the effect in the gear with lubricating oil into through first vertical oil duct and the vertical oil duct structure of second, can effectively avoid need dismantling the shortcoming that the casing pours into lubricating oil into, can effectively be with the even gear engagement department of pouring into the gear shaft of lubricating oil into through a plurality of radial oil ducts, can effectively solve the difficulty of maintaining the maintenance.

Drawings

FIG. 1 is a schematic exploded perspective view of an alloy gear shaft structure for a coal mining machine, which is convenient to maintain according to the present invention;

FIG. 2 is a schematic view of a split front view of an alloy gear shaft structure for easy maintenance of coal mining machinery according to the present invention;

FIG. 3 is a schematic sectional view of the easy-to-maintain alloy gear shaft structure for coal mining machine according to the present invention;

FIG. 4 is a schematic perspective view of the assembly of the alloy gear shaft structure for coal mining machinery of the present invention, which is convenient for maintenance;

fig. 5 is the utility model discloses coal mining machinery is with alloy gear shaft structure's of being convenient for to maintain gear shaft right side view section view sketch map.

In the figure: 1. a connecting shaft; 2. a radial oil passage; 3. a gear plate; 4. a fixed shaft; 5. connecting grooves; 6. a connection bump; 7. positioning the bearing; 8. positioning the shaft; 9. a first longitudinal oil passage; 10. a second longitudinal oil passage.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-5, the present invention provides a technical solution:

an alloy gear shaft convenient to maintain for coal mining machinery comprises a fixed shaft 4, as shown in fig. 1 and 5, a plurality of connecting grooves 5 are formed in the left end and the right end of the fixed shaft 4, the connecting grooves 5 are distributed on the fixed shaft 4 in an annular array mode, a gear disc 3 is fixed in the middle of the fixed shaft 4, a first longitudinal oil duct 9 is formed in the axial center of the fixed shaft 4, a plurality of radial oil ducts 2 are formed in the middle of the gear disc 3, a plurality of gear teeth are uniformly distributed on the gear disc 3, and the radial oil ducts 2 are located in the gear tooth center of the gear disc 3 and penetrate through the gear disc 3;

as shown in fig. 1-4, connecting shafts 1 are uniformly distributed on the left and right sides of a fixed shaft 4, a plurality of connecting protrusions 6 are fixed on one ends of two connecting shafts 1 close to the fixed shaft 4, the connecting protrusions 6 are distributed on the connecting shafts 1 in an annular array, two connecting shafts 1 are symmetrically distributed on the left and right sides of the fixed shaft 4, the connecting protrusions 6 on the two connecting shafts 1 are matched with a plurality of connecting grooves 5 on the left and right sides of the fixed shaft 4, the number of the connecting grooves 5 is equal to the number of the connecting protrusions 6, positioning shafts 8 are fixed on one ends of the two connecting shafts 1 far from the fixed shaft 4, two positioning shafts 8 are fixed with the two connecting shafts 1, second longitudinal oil ducts 10 are arranged in the centers of the two positioning shafts 8, first longitudinal oil ducts 9 and the second longitudinal oil ducts 10 are located on the same axis and have the same diameter, positioning bearings 7 are mounted on the two positioning shafts 8, the two positioning bearings 7 are symmetrically distributed on the left and right sides of the fixed shaft 4, one side of each of the two positioning bearings 7 is tightly attached to the surface of the two connecting shafts 1 and is fixedly arranged on the positioning shaft 8.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. An alloy gear shaft convenient to maintain for coal mining machinery comprises a fixed shaft (4), and is characterized in that a plurality of connecting grooves (5) are formed in the left end and the right end of the fixed shaft (4), a gear disc (3) is fixed in the middle of the fixed shaft (4), a first longitudinal oil duct (9) is formed in the axial center of the fixed shaft (4), and a plurality of radial oil ducts (2) are formed in the middle of the gear disc (3);

cloth is equallyd divide to the left and right sides of fixed axle (4) has connecting axle (1), two the one end that connecting axle (1) is close to fixed axle (4) all is fixed with a plurality of connecting convex block (6), two the one end that fixed axle (4) were kept away from in connecting axle (1) all is fixed with location axle (8), two location bearing (7) are all installed to location axle (8).

2. The alloy gear shaft for coal mining machinery convenient to maintain of claim 1,

a plurality of teeth of a cogwheel of even distribution on toothed disc (3), it is a plurality of radial oil duct (2) all are located the teeth of a cogwheel center department of toothed disc (3) and run through toothed disc (3).

3. The alloy gear shaft for coal mining machinery convenient to maintain of claim 1,

the two positioning shafts (8) and the two connecting shafts (1) are fixed, second longitudinal oil ducts (10) are formed in the centers of the two positioning shafts, and the first longitudinal oil ducts (9) and the second longitudinal oil ducts (10) are located on the same axis and have the same diameter.

4. The alloy gear shaft for coal mining machinery convenient to maintain of claim 1,

two connecting axle (1) is the symmetric form and distributes in the left and right sides of fixed axle (4), two a plurality of connecting lug (6) on connecting axle (1) all cooperate with a plurality of spread groove (5) of left and right sides on fixed axle (4).

5. The alloy gear shaft for coal mining machinery convenient to maintain of claim 1,

two location bearing (7) are the symmetrical formula and distribute in the left and right sides of fixed axle (4), two one side of location bearing (7) all pastes tight two connecting axle (1) surfaces and fixed mounting on location axle (8).

6. The alloy gear shaft for coal mining machinery convenient to maintain of claim 1,

a plurality of connecting lug (6) are distributed on connecting axle (1) and are annular array, and a plurality of spread groove (5) are distributed on fixed axle (4) and are annular array.

7. The alloy gear shaft for coal mining machinery convenient to maintain of claim 1,

the connecting lugs (6) are matched with the connecting grooves (5), and the number of the connecting grooves (5) is equal to that of the connecting lugs (6).

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