Installation tool for coal mining machine roller tooth holder

Abstract

The utility model discloses a coal mining machine roller tooth holder installation tool which comprises a base and a profiling template, a transmission mechanism is arranged in an inner cavity of the base, one end of the transmission mechanism is connected with a center distance adjusting handle on one side of the base, the transmission mechanism is connected with a rotary positioning seat on the top of the base, and the profiling template is arranged on the rotary positioning seat. A height adjusting column is arranged at the end, away from the rotary positioning seat, of the top of the base, an angle positioning plate is slidably connected to the height adjusting column, angle scale marks and a reference hole are formed in the angle positioning plate, and the reference hole is rotationally connected with the profiling sample plate. The device can assist an operator in accurately mounting the toothholder, so that the mounting position and angle of the toothholder meet the design requirements of drawings, the cutting teeth fixed on the toothholder in the working process of the roller are uniformly stressed, the service life of each transmission part of the coal mining machine is prolonged, the abrasion of the toothholder is reduced, and the service life of the coal mining machine is prolonged. And the coal mining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of drum coal mining machines, and in particular relates to an installation tool for a drum gear seat of a coal mining machine. Background Art

[0002] The drum coal shearer is a coal mining machine that uses a drum as its working mechanism. When the drum rotates and cuts into the coal wall, the coal is crushed by the pick installed on the drum, and the crushed coal is loaded into the scraper conveyor through the spiral blades on the drum. The drum coal shearer has a large mining height range, strong adaptability to various coal seams, can cut hard coal, and can adapt to more complex roof and floor conditions, so it has been widely used.

[0003] The structure of the drum 8 is as follows Figure 3 As shown, it includes a cylinder 9, the circumference of which is welded with a plurality of tooth seats 10 distributed in a spiral form, and each of the tooth seats 10 is installed with a cutting tooth 11. Since the installation position and angle of the tooth seat 10 on the cylinder 9 determine the position and angle of the cutting tooth 11, the installation of the tooth seat 10 will directly affect the coal mining efficiency and service life of the drum 8. Therefore, how to install the tooth seat 10 in the correct position of the cylinder 9 is crucial.

[0004] Since the position and angle of each tooth seat 10 installed on the cylinder 9 are different, the existing tooth seat 10 is mainly installed based on the workers' experience, that is, the workers install each tooth seat 10 on the cylinder 9 based on their experience according to the designed position and angle of each tooth seat 10 on the cylinder 9 in the drawing. However, manual installation will cause the tooth seat 10 to deviate from the originally designed position, so that during the operation of the drum 8, the cutting teeth 11 installed on the tooth seat 10 are subjected to uneven force and produce greater vibrations, which directly affects the service life of the transmission components of the coal mining machine, and also aggravates the wear of the tooth seat 10, reducing the coal mining efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned problem and to provide an installation tool for the tooth seat of a coal mining machine drum, which can assist the operator to accurately install the tooth seat so that the installation position and angle of the tooth seat meet the design requirements of the drawing, so that the cutting teeth fixed on the tooth seat of the drum are evenly stressed during operation, thereby extending the service life of the transmission components of the coal mining machine, reducing the wear of the tooth seat and improving the coal mining efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an installation tool for a coal mining machine drum gear seat, including a base and a profiling template, a transmission mechanism is provided in the inner cavity of the base, one end of the transmission mechanism is connected to the center distance adjustment handle on one side of the base, the transmission mechanism is connected to the rotation positioning seat on the top of the base, the center distance adjustment handle can be used to adjust the rotation positioning seat on the transmission mechanism to move horizontally relative to the base, a height adjustment column is provided at one end of the top of the base away from the rotation positioning seat, an angle positioning plate is slidably connected to the height adjustment column, an angle positioning plate is provided on the angle positioning plate, an angle scale line and a reference hole are provided on the angle positioning plate, and the reference hole is rotatably connected to the profiling template.

[0007] As a further optimization, the transmission mechanism is a screw nut pair, the center distance adjustment handle is connected to one end of the screw, the screw is provided with a screw nut, and the screw nut is connected to the rotating positioning seat on the top of the base.

[0008] As a further optimization, the rotary positioning seat includes a fixed part and a rotating part, one side of the fixed part is connected to the transmission mechanism, and the other side of the fixed part is connected to the rotating part through a bearing.

[0009] As a further optimization, a slideway is provided on the height adjustment column, a bolt is slidably connected in the slideway, the bolt is connected to the angle positioning plate, and the angle positioning plate can slide up and down along the slideway through the bolt.

[0010] As a further optimization, the cross section of the slideway is in the shape of a dovetail groove.

[0011] Advantages and beneficial effects of the utility model

[0012] 1. The utility model can adjust the installation position of the tooth seat, that is, the center distance from the center line of the drum to the tip of the pick and the upper and lower distances from the bottom surface of the drum to the tip of the pick, by moving the center distance adjustment handle and the angle positioning plate. The installation angle of the tooth seat is adjusted by rotating the profiling template relative to the angle positioning plate, thereby assisting the operator to accurately install the tooth seat on the cylinder body to meet the various parameters of the tooth seat installation on the drawing, so that the pick fixed on the tooth seat during the operation of the drum is evenly stressed, which prolongs the service life of various transmission parts of the coal mining machine, reduces the wear of the tooth seat, and improves the coal mining efficiency.

[0013] 2. The utility model can also re-inspect the installed roller, such as detecting the wear of the tooth seat, to prevent the tooth seat from deviating from the position designed in the original drawing after wear, thereby causing uneven force on the pick fixed on the tooth seat during the operation of the roller.

[0014] 3. The utility model has a simple structure, strong versatility, is suitable for rollers of different sizes, and is easy and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the embodiment of the utility model after removing the profiling template;

[0017] Figure 2 This is a schematic diagram of detection after the roller is installed in the embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of an existing roller.

[0019] Figure numerals: base 1, transmission mechanism 2, screw 21, screw nut 22, center distance adjustment handle 3, rotation positioning seat 4, fixed part 41, rotating part 42, bearing 43, height adjustment column 5, slideway 51, angle positioning plate 6, angle scale line 61, reference hole 62, profiling template 7, mounting hole 71, roller 8, cylinder body 9, tooth seat 10, pick 11 and bolt 12. DETAILED DESCRIPTION

[0020] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.

[0021] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "inside", "outside", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] like Figure 1 and Figure 2As shown, a mounting fixture for a gear seat of a coal mining machine drum comprises a base 1 and a profiling template 7, a transmission mechanism 2 is provided in the inner cavity of the base 1, the transmission mechanism 2 is a screw nut pair, comprising a screw 21 and a screw nut 22 which can move left and right on the screw 21, a center distance adjustment handle 3 is welded to the left end of the screw 21, the screw nut 22 is connected to a rotation positioning seat 4 at the top of the base 1, specifically, a sliding hole is provided at the top of the base 1, the rotation positioning seat 4 or the screw nut 22 are connected to each other through the sliding hole, so that the screw nut 22 on the screw 21 can be adjusted to move left and right by the center distance adjustment handle 3, thereby driving the rotation positioning seat 4 to move left and right relative to the base 1, the rotation positioning seat 4 comprises a fixed part 41 and a rotating part 42, the bottom of the fixed part 41 is connected to the screw nut 22, the top of the fixed part 41 is connected to the rotating part 42 through a bearing 43, and the rotating part 42 is used The roller 8 is placed to facilitate the rotation of the roller 8 so that the tooth seat 10 at different positions can be measured for up and down dimensions and angular positions through the angle positioning plate 6. A height adjustment column 5 is provided at the left end of the top of the base 1. A slideway 51 is provided on the height adjustment column 5. The cross-section of the slideway 51 is in the shape of a dovetail groove. A bolt 12 is slidably connected in the slideway 51. The bolt 12 is connected to the angle positioning plate 6. When the nut is loosened, the angle positioning plate 6 can slide up and down along the slideway 51 through the bolt. When the nut is tightened, the angle positioning plate 6 is fixed relative to the slideway 51. Angle scale lines 61 and reference holes 62 are provided on the angle positioning plate 6. The reference hole 62 is rotatably connected to the profiling template 7. The profiling template 7 is designed according to the shape and size of the cutting tooth 11. By inserting the profiling template 7 into the placement hole of the tooth seat 10, the position and angle of the cutting tooth 11 and the tooth seat 10 installed on the cylinder 9 can be imitated.

[0023] Working process

[0024] When installing the tooth seat 10 on the cylinder 9, it is necessary to consider the spatial position of the tooth seat 10, that is, the installation angle of the tooth seat 10, the center distance a of the tooth seat 10 (the distance from the center line of the drum 8 to the tip of the pick 11) and the upper and lower distance h of the tooth seat 10 (the distance from the bottom surface of the drum 8 to the tip of the pick 11).

[0025] When adjusting the installation angle of the gear seat 10, it is necessary to rotate the installation hole 71 on the profiling template 7 and the reference hole 62 on the angle positioning plate 6 through a pin, and then the worker adjusts the angle of the profiling template 7 according to the angle parameters on the drawing. Since the angle positioning plate 6 is provided with an angle scale line 61, the angle of the gear seat 10 connected to the profiling template 7 can be determined by rotating the profiling template 7 to the corresponding angle.

[0026] When adjusting the center distance a of the gear seat 10, a ruler is needed to assist. According to the parameters of the center distance a on the drawing, the center distance adjustment handle 3 is turned. Driven by the screw nut pair, the rotating positioning seat 4 drives the roller 8 to move left and right relative to the base 1.

[0027] When adjusting the upper and lower distance h of the gear seat 10, a ruler is needed to assist. Now loosen the bolt 12 to make the angle positioning plate 6 movable. Then adjust the angle positioning plate 6 up and down according to the upper and lower distance h designed on the drawing. When the parameters designed on the drawing are reached, tighten the bolts.

[0028] After the angular direction, center distance a and upper and lower distance h of the gear seat 10 are adjusted according to the design parameters of the drawing, the gear seat 10 can be welded to the cylinder 9.

[0029] In addition to installing the gear seat 10 on the cylinder 9 according to the position and angle designed in the drawing, the present application can also place the installed roller 8 on the tooling to check the wear of the gear seat 10. Since the roller is the working mechanism of the coal mining machine, its working environment is harsh and it needs to be in uninterrupted contact with the coal flow during operation, so the gear seat 10 will be worn. The worn gear seat 10 will deviate from the original designed position and angle. Through the present application, the deviation of the position and angle of the worn gear seat 10 can be detected, so that the gear seat 10 can be repaired.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model, rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the embodiments of the utility model.

Claims

1. A tool for installing a gear seat of a coal mining machine drum, characterized in that: The invention comprises a base (1) and a profiling template (7), wherein a transmission mechanism (2) is arranged in an inner cavity of the base (1), one end of the transmission mechanism (2) is connected to a center distance adjustment handle (3) on one side of the base (1), the transmission mechanism (2) is connected to a rotation positioning seat (4) on the top of the base (1), and the rotation positioning seat (4) on the transmission mechanism (2) can be adjusted to move laterally relative to the base (1) by means of the center distance adjustment handle (3), a height adjustment column (5) is arranged at one end of the top of the base (1) away from the rotation positioning seat (4), an angle positioning plate (6) is slidably connected to the height adjustment column (5), an angle scale line (61) and a reference hole (62) are arranged on the angle positioning plate (6), and the reference hole (62) is rotationally connected to the profiling template (7).

2. The installation tool for the gear seat of a coal mining machine drum according to claim 1 is characterized in that: The transmission mechanism (2) is a screw nut pair, the center distance adjustment handle (3) is connected to one end of the screw (21), the screw (21) is provided with a screw nut (22), and the screw nut (22) is connected to a rotation positioning seat (4) at the top of the base (1).

3. The installation tool for the gear seat of a coal mining machine drum according to claim 1 is characterized in that: The rotary positioning seat (4) comprises a fixed portion (41) and a rotating portion (42); one side of the fixed portion (41) is connected to the transmission mechanism (2), and the other side of the fixed portion (41) is connected to the rotating portion (42) via a bearing (43).

4. The installation tool for the gear seat of a coal mining machine drum according to claim 1, characterized in that: The height adjustment column (5) is provided with a slideway (51), a bolt (12) is slidably connected in the slideway (51), the bolt (12) is connected to the angle positioning plate (6), and the angle positioning plate (6) can slide up and down along the slideway (51) through the bolt.

5. The installation tool for the gear seat of a coal mining machine drum according to claim 4, characterized in that: The cross section of the slideway (51) is in the shape of a dovetail groove.

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