Installation Structure of Shearer Traction Motor and Shearer

Abstract

The present invention discloses an installation structure of a traction motor of a shearer and a shearer. The body of the shearer is provided with a motor housing, and the traction motor is installed in the motor housing. The traction motor includes a first end face and a second end face arranged along the axial direction of the output shaft of the traction motor. The second end face extends out. The motor housing includes a first inner side face and a positioning member arranged on the first inner side face. The first inner side face corresponds to the first end face, and the positioning member abuts against the first end face to apply a tightening force to the first end face in the axial direction of the traction motor. The present invention can perform good axial positioning on the traction motor, with reliable positioning, ensuring the effectiveness of the end face seal of the traction motor.

Description

Technical Field

[0001] The present invention relates to the technical field of mining equipment, and particularly relates to an installation structure of a traction motor of a coal shearer and a coal shearer. Background Art

[0002] The fully-mechanized mining equipment underground in coal mines mainly includes hydraulic supports, scraper conveyors and coal shearers. Among them, the hydraulic supports are used to support the roof; the scraper conveyors are used to transport materials, and the pin rails of the scraper conveyors provide running tracks for the coal shearers; the body of the coal shearer is equipped with traveling gears, traction motors and rocker arms. The traveling gears are meshed with the pin rails, and the traction motors are used to drive the traveling gears to rotate so that the coal shearer travels along the pin rails. During the traveling process of the coal shearer, the cutters on the rocker arm drum rotate and cut the coal seam, and the cut coal blocks are output through the scraper conveyor.

[0003] At present, in order to improve the equipment passability and the maintainability of the traction motor of the thin coal seam coal shearer, the traction motor is vertically installed on the upper surface of the body of the coal shearer in the motor housing of the body of the coal shearer. This installation method often results in unreliable axial positioning of the traction motor, which is easy to loosen. After loosening, the end face seal of the traction motor fails. Summary of the Invention

[0004] In view of this, the present invention provides an installation structure of a traction motor of a coal shearer and a coal shearer, which can perform good axial positioning on the traction motor, with reliable positioning, and ensure the effectiveness of the end face seal of the traction motor.

[0005] Specifically, the following technical solutions are included:

[0006] In a first aspect, an embodiment of the present invention provides an installation structure of a traction motor of a coal shearer. The body of the coal shearer is provided with a motor housing, and the traction motor is installed in the motor housing. The traction motor includes a first end face and a second end face arranged along the axial direction of the output shaft of the traction motor. The motor housing includes a first side face and a positioning member arranged on the first side face. The first side face corresponds to the first end face, and the positioning member abuts against the first end face to apply a tightening force to the first end face in the axial direction of the traction motor.

[0007] Optionally, the positioning member includes a positioning member main body and a tightening member. The first side face is provided with a boss protruding towards the first end face. The positioning member main body is connected to the boss through the tightening member, and the tightening member can adjust the width of the positioning main body in the axial direction of the output shaft.

[0008] Optionally, the positioning member body includes a first wedge member and a second wedge member. The first wedge member includes a first vertical surface, a first inclined surface opposite to the first vertical surface, and a first upper end surface connecting the first vertical surface and the first inclined surface. The second wedge member includes a second vertical surface, a second inclined surface opposite to the second vertical surface, and a second lower end surface connecting the second vertical surface and the second inclined surface. The first vertical surface is in close fit with the first end surface, the first inclined surface is in close fit with the second inclined surface, the second vertical surface is in close fit with the first side surface, and the first upper end surface is opposite to the second lower end surface.

[0009] Optionally, the first wedge member further includes a third vertical surface located between the first vertical surface and the first inclined surface, and the width of the third vertical surface in the transverse direction gradually narrows from top to bottom; the second wedge member further includes a fourth vertical surface located between the second vertical surface and the second inclined surface, and the width of the fourth vertical surface in the transverse direction gradually widens from top to bottom.

[0010] Optionally, the first wedge member includes a first avoidance groove for avoiding the boss, and the first avoidance groove communicates with a third end surface of the first wedge member opposite to the first end surface. The second wedge member includes a second avoidance groove for avoiding the boss, and the second avoidance groove communicates with the second end surface.

[0011] Optionally, the tightening member is a tightening bolt. Bolt mounting holes are provided on the first upper end surface of the first wedge member and the boss, and the tightening bolt is installed in the bolt mounting holes to fasten the first wedge member to the boss.

[0012] Optionally, both the first wedge member and the second wedge member are configured in a U shape.

[0013] Optionally, the motor housing further includes an installation opening and a gland for installing the traction motor inside the motor housing, and the gland covers the installation opening.

[0014] Optionally, the traction motor further includes a third end surface corresponding to the gland, and a gasket is provided between the gland and the third end surface.

[0015] Optionally, the motor housing further includes a second side surface opposite to the first side surface, the second side surface corresponds to the second end surface, and a groove is provided on the second end surface around the output shaft, and the groove is filled with sealant.

[0016] In a second aspect, an embodiment of the present invention provides a shearer, including the installation structure of the shearer traction motor as described above.

[0017] The beneficial effects of the technical solution provided by the embodiment of the present invention at least include:

[0018] The installation structure of the shearer traction motor provided by the present invention applies an axial tightening force on the end face of the traction motor through the positioning member arranged in the motor housing, making the positioning of the traction motor in the axial direction more reliable and not easily loosening, ensuring the effectiveness of the end face seal of the traction motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a cross-sectional view of the installation structure of the shearer traction motor according to the embodiment of the present invention;

[0021] Figure 2 is Figure 1 a partial enlarged view of;

[0022] Figure 3 is a three-dimensional view of the first wedge according to the embodiment of the present invention;

[0023] Figure 4 is a front view of the first wedge according to the embodiment of the present invention;

[0024] Figure 5 is a side view (partially cut open) of the first wedge according to the embodiment of the present invention;

[0025] Figure 6 is a three-dimensional view of the second wedge according to the embodiment of the present invention;

[0026] Figure 7 is a front view of the second wedge according to the embodiment of the present invention.

[0027] The reference numerals in the drawings are respectively represented as:

[0028] 100 - Traction motor; 101 - First end face; 102 - Second end face; 103 - Output shaft; 104 - Groove; 200 - Motor housing; 201 - First side; 202 - Second side; 203 - Boss; 204 - Gland; 205 - Gasket; 300 - Positioning member; 301 - First wedge; 3011 - First vertical surface; 3012 - First inclined surface; 3013 - Third vertical surface; 3014 - Bolt mounting hole; 3015 - Counterbore; 302 - Second wedge; 3021 - Second vertical surface; 3022 - Second inclined surface; 3023 - Fourth vertical surface; 303 - Tightening member.

[0029] Through the above - mentioned drawings, specific embodiments of the present invention have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the inventive concept in any way, but to illustrate the concept of the present invention to those skilled in the art by reference to specific embodiments. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] To make the technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the drawings.

[0032] As Figure 1 and Figure 2 shown, an installation structure of a shearer traction motor is provided in an embodiment of the present invention. The body of the shearer is provided with a motor housing 200, and the traction motor 100 is installed in the motor housing 200. The traction motor 100 includes a first end face 101 and a second end face 102 that are opposite to each other along the axial direction of the output shaft of the traction motor. The output shaft 103 of the traction motor 100 extends out from the second end face 102. The motor housing 200 includes a first side and a positioning member 300 provided on the first side. The first side corresponds to the first end face 101, and the positioning member 300 abuts against the first end face 101 to apply a tightening force to the first end face 101 in the axial direction of the traction motor 100.

[0033] In this embodiment, one end where the output shaft 103 of the traction motor 100 extends is defined as the front end. The first end face 101 and the second end face 102 are located in the axial direction of the traction motor 100. Then, the second end face 102 is the front end face of the traction motor 100, and the first end face 101 is the rear end face of the traction motor 100. The positioning member 300 presses against the rear end face of the traction motor 100 to apply a pressing force to the rear end face of the traction motor 100 in the axial direction, so that the traction motor 100 is well positioned in the axial direction.

[0034] If the positioning of the traction motor 100 in the axial direction is not firm, it is very easy to loosen, which will affect the sealing performance between the traction motor 100 and the side surface of the motor housing 200.

[0035] The installation structure of the shearer traction motor provided by the embodiment of the present invention applies an axial pressing force to the end face of the traction motor 100 through the positioning member 300 arranged in the motor housing 200, so that the positioning of the traction motor 100 in the axial direction is more firm and not easy to loosen, ensuring the effectiveness of the end face seal of the traction motor 100.

[0036] As Figure 1 and Figure 2 shown, in the embodiment of the present invention, the positioning member 300 includes a positioning member main body and a pressing member 303. A convex platform 203 protruding towards the first end face 101 is provided on the first side surface 201. The positioning member main body is connected to the convex platform 203 through the pressing member 303. The positioning member main body is connected to the convex platform 203 through the pressing member 303, and the positioning member main body is in close contact with the first end face 101 and the second side surface 202. The pressing member 303 can adjust the width of the positioning main body in the axial direction of the output shaft of the motor.

[0037] There is a certain gap between the first end face 101 of the traction motor 100 and the first side surface 201 of the motor housing 200. The convex platform 203 protrudes from the first side surface 201 towards the first end face 101 of the traction motor 100 and is located at this gap. The positioning member 300 is supported by the convex platform 203 and fixed to the convex platform 203 through the pressing member 303. The positioning member 300 fills this gap and is in close contact with the first end face 101 and the second side surface 202, and presses against the traction motor 100 in the axial direction of the traction motor 100 through the positioning member 300.

[0038] Exemplarily, as Figures 3 to 7As shown, in the embodiment of the present invention, the positioning member body includes a first wedge member 301 and a second wedge member 302. The first wedge member 301 includes a first vertical surface 3011, a first inclined surface 3012 opposite to the first vertical surface 3011, and a first upper end surface connecting the first vertical surface 3011 and the first inclined surface 3012. The second wedge member 302 includes a second vertical surface 3021, a second inclined surface 3022 opposite to the second vertical surface 3021, and a second lower end surface connecting the second vertical surface 3021 and the second inclined surface 3022. The first vertical surface 3011 is closely attached to the first end surface 101, the first inclined surface 3012 is closely attached to the second inclined surface 3022, the second vertical surface 3021 is closely attached to the first side surface 201, and the first upper end surface is opposite to the second lower end surface.

[0039] To save costs and reduce weight, the middle parts of the first wedge member 301 and the second wedge member 302 can be constructed as hollow structures. Here, both the first wedge member 301 and the second wedge member 302 are constructed in a U-shaped form (as Figure 3 and Figure 6 shown).

[0040] The first wedge member 301 further includes a third vertical surface 3013 located between the first vertical surface 3011 and the first inclined surface 3012, and the width of the third vertical surface 3013 in the transverse direction gradually becomes narrower from top to bottom; the second wedge member 302 further includes a fourth vertical surface 3023 located between the second vertical surface 3021 and the second inclined surface 3022, and the width of the fourth vertical surface 3023 in the transverse direction gradually becomes wider from top to bottom.

[0041] The first wedge member includes a first avoidance groove for avoiding the boss 203, and the first avoidance groove communicates with the third end surface of the first wedge member opposite to the first end surface. The second wedge member includes a second avoidance groove for avoiding the boss 203, and the second avoidance groove communicates with the second end surface.

[0042] The total width of the first wedge member 301 and the second wedge member 302 matches the gap between the first end surface 101 and the second end surface 102, so that the first wedge member 301 and the second wedge member 302 can be tightly filled in this gap, thereby achieving the purpose of tightly pressing the first end surface 101 of the traction motor 100.

[0043] When positioning, the second wedge member 302 is first placed on the boss 203 to ensure that the second vertical surface of the first wedge member 301 is attached to the first side surface 201, and then the second wedge member 302 is inserted between the second inclined surface of the first wedge member 301 and the first end surface 101 of the traction motor 100 to ensure that the first vertical surface 3011 is closely attached to the first end surface 101, the first inclined surface 3012 is closely attached to the second inclined surface 3022, and the second vertical surface 3021 is closely attached to the first side surface 201.

[0044] Optionally, in the embodiment of the present invention, the pressing member 303 is a pressing bolt. Bolt mounting holes 3014 are provided on both the first upper end face of the first wedge member 301 and the boss 203. The pressing bolt is mounted in the bolt mounting hole 3014 to fasten the first wedge member 301 to the boss 203. Fixing the first wedge member 301 to the boss 203 by the pressing bolt can make the first wedge member 301 apply an axial pressing force to the first end face 101 of the traction motor 100 more reliably.

[0045] As Figure 2 shown, in the embodiment of the present invention, the bolt mounting hole 3014 of the first wedge member 301 has a counterbore 3015. The head of the pressing bolt abuts against the counterbore 3015, and a washer is provided between the pressing bolt and the counterbore.

[0046] By providing a counterbore in the mounting hole, the head of the pressing bolt can be hidden inside the first wedge member 301, which can protect the pressing bolt and prevent interference with other components and loosening.

[0047] As Figure 1 shown, in the embodiment of the present invention, the motor housing 200 further includes a mounting opening and a gland 204 for mounting the traction motor 100 inside the motor housing 200. The gland 204 covers the mounting opening. The traction motor 100 further includes a third end face. The gland 204 corresponds to the third end face, and a gasket 205 is provided between the gland 204 and the third end face.

[0048] As Figure 1 shown, in the embodiment of the present invention, the motor housing 200 further includes a second side face 202 opposite to the first side face 201. The second side face 202 corresponds to the second end face 102. A groove 104 is provided on the second end face 102 around the output shaft 103. The groove 104 is filled with sealant to achieve good sealing and positioning between the second end face 102 of the traction motor 100 and the second side face 202 of the motor housing 200.

[0049] When installing the traction motor 100, sealant is filled in the groove 104 on the second end face 102 of the traction motor 100. The traction motor 100 is lifted and placed into the motor housing 200 through the mounting opening, so that the second end face 102 of the traction motor 100 is initially fitted and positioned with the second side face 202 of the motor housing 200. The second wedge member 302 is placed on the boss 203 to ensure that the second vertical face is in contact with the first side face 201 of the motor housing 200. Then the first wedge member 301 is placed between the second inclined face of the second wedge member 302 and the first end face 101 of the traction motor 100. Finally, the first wedge member 301 is fixed to the boss 203 by the pressing member 303.

[0050] Further, an embodiment of the present invention provides a shearer, including the installation structure of the shearer traction motor as shown in Figure 1 and Figure 2 . The installation structure is as described above and will not be elaborated herein.

[0051] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by those of ordinary skill in the art to which the present invention pertains. The terms "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. The term "connected" or "coupled" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0052] The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Terms such as "part" and "component" as used herein may denote a single part or a combination of multiple parts. Terms such as "installed" and "set up" as used herein may denote that one component is directly attached to another component or that one component is attached to another component through an intermediate component. Features described in one embodiment herein may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0053] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the present invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common general knowledge or conventional technical means in the technical field not disclosed by the present invention. The specification and examples are only to be considered as exemplary.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An installation structure of a traction motor of a coal shearer, wherein the fuselage of the coal shearer is provided with a motor housing, and the traction motor is installed in the motor housing. The traction motor includes a first end face and a second end face arranged along the axial direction of the output shaft of the traction motor. It is characterized in that, The motor housing includes a first side surface and a positioning member disposed on the first side surface. The first side surface corresponds to the first end face, and the positioning member abuts against the first end face to apply a pressing force to the first end face in the axial direction of the traction motor. The positioning member includes a positioning member body and a pressing member. The first side surface is provided with a boss protruding toward the first end face. The positioning member body is connected to the boss through the pressing member, and the pressing member can adjust the width of the positioning body in the axial direction of the output shaft. The positioning member body includes a first wedge member and a second wedge member. The first wedge member includes a first vertical surface, a first inclined surface opposite to the first vertical surface, and a first upper end surface connecting the first vertical surface and the first inclined surface. The second wedge member includes a second vertical surface, a second inclined surface opposite to the second vertical surface, and a second lower end surface connecting the second vertical surface and the second inclined surface. The first vertical surface is in close contact with the first end face, the first inclined surface is in close contact with the second inclined surface, the second vertical surface is in close contact with the first side surface, and the first upper end surface is opposite to the second lower end surface.

2. The installation structure of the traction motor of the coal shearer according to claim 1, characterized in that, The first wedge member further includes a third vertical surface located between the first vertical surface and the first inclined surface, and the width of the third vertical surface in the transverse direction gradually narrows from top to bottom. The second wedge member further includes a fourth vertical surface located between the second vertical surface and the second inclined surface, and the width of the fourth vertical surface in the transverse direction gradually widens from top to bottom.

3. The installation structure of the traction motor of the coal shearer according to claim 2, characterized in that, The first wedge member includes a first avoidance groove for avoiding the boss, and the first avoidance groove communicates with a third end surface of the first wedge member opposite to the first end face. The second wedge member includes a second avoidance groove for avoiding the boss, and the second avoidance groove communicates with the second end surface.

4. The installation structure of the traction motor of the coal shearer according to claim 3, characterized in that, The pressing member is a pressing bolt. Both the first upper end surface of the first wedge member and the boss are provided with bolt mounting holes, and the pressing bolt is mounted in the bolt mounting holes to fasten the first wedge member to the boss.

5. The installation structure of the traction motor of the coal shearer according to claim 1, characterized in that, Both the first wedge member and the second wedge member are configured in a U-shaped shape.

6. The installation structure of the traction motor of the coal shearer according to claim 1, characterized in that, The motor housing further includes an installation opening and a gland for installing the traction motor inside the motor housing, and the gland covers the installation opening.

7. The installation structure of the traction motor of the coal shearer according to claim 6, characterized in that, The traction motor further includes a third end surface corresponding to the gland, and a gasket is provided between the gland and the third end surface.

8. The installation structure of the traction motor of the coal shearer according to claim 1, characterized in that, The motor housing further includes a second side surface opposite to the first side surface. The second side surface corresponds to the second end face. A groove is provided on the second end face around the output shaft, and the groove is filled with sealant.

9. A coal shearer, characterized in that, An installation structure of a shearer traction motor as described in any one of claims 1-8 is included.

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