Pin shaft dismounting tool of coal mining heading machine

Abstract

The utility model discloses a pin shaft dismounting tool of a coal mining heading machine, which comprises an outer convex cylindrical pipe, a sealing ring block is arranged on one side of the outer convex cylindrical pipe, an inner convex groove cylindrical pipe is arranged on the sealing ring block, and the inner convex groove cylindrical pipe is positioned on the inner side of the outer convex cylindrical pipe; auxiliary knocking assemblies are arranged on the inner convex groove cylindrical pipe and the outer convex cylindrical pipe; and a dismounting structure and an adsorption structure are arranged on the sealing circular ring block. Through extrusion sleeving of the inner convex groove cylindrical pipe and the outer convex cylindrical pipe and combination of the magnetic repulsive action of the expansion electromagnet and the expansion magnet, stable extrusion limiting and fixing of the pin shaft are achieved, the stability of equipment in the working process is ensured, and the device can be used for narrow and complex underground overhaul and maintenance environments of coal mine enterprises and can also be used for maintenance of the equipment. And the device can be used for daily overhaul and maintenance of equipment shaft sleeves in ground industrial places, and the pin shaft of the coal mining heading machine can be quickly disassembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the coal mining equipment field, concretely relates to a pin shaft dismounting tool of coal mining heading machine. BACKGROUND

[0002] The puller is also called dismounting device, which is a mechanical equipment specially designed for coal mine cars. It is mainly used for dismounting and mounting the wheels and bearings of the mine cars. This equipment can effectively prevent the bearings of the mine cars from being damaged during manual dismounting, reduce the labor intensity of the employees, and significantly improve the work efficiency. However, the existing pin shaft dismounting tool is usually equipped with three claws for providing stable support during dismounting. However, in actual operation, the claws are easy to touch other parts when fixed, and are easy to loosen during dismounting, thereby affecting the dismounting efficiency. In addition, since the fixed seat is arranged on the puller ring of the pin shaft dismounting tool, it is difficult to effectively grip and fix the irregular workpiece, resulting in a complicated operation process. SUMMARY

[0003] The utility model provides a pin shaft dismounting tool of coal mining heading machine, purpose at through extrusion limit of inner convex slot cylindrical pipe and outer convex cylindrical pipe, stretch, improve the stability, versatility, flexibility and convenience of equipment, not only can be used in narrow and complex environment of coal mine enterprise underground overhaul and maintenance, but also can be used for regular overhaul and maintenance of the shaft sleeve of the equipment on the ground industrial site, realizing the quick dismounting of the pin shaft of the coal mining heading machine.

[0004] To achieve the purpose, the utility model adopts the following technical scheme:

[0005] A pin shaft dismounting tool of coal mining heading machine, comprising an outer convex cylindrical pipe, a sealing ring block is arranged on one side of the outer convex cylindrical pipe, an inner convex slot cylindrical pipe is arranged on the sealing ring block, and the inner convex slot cylindrical pipe is located on the inner side of the outer convex cylindrical pipe; an auxiliary knocking assembly is arranged on the inner convex slot cylindrical pipe and the outer convex cylindrical pipe; a dismounting structure and an adsorption structure are arranged on the sealing ring block;

[0006] The dismounting structure comprises a repulsion and stretching ring block movably inserted into the inner side of the inner convex slot cylindrical pipe, a repulsion and stretching ring electromagnet is arranged on the inner side of the inner convex slot cylindrical pipe, and a repulsion and stretching ring magnet is arranged on the repulsion and stretching ring block; three pairs of stretching shaft pipes are inserted into the repulsion and stretching ring block, an inner hexagonal telescopic block is arranged on the stretching shaft pipe, a convex telescopic groove is formed in the inner hexagonal telescopic block, and an inner convex expansion block is inserted into the inner side of the convex telescopic groove; an expansion magnet is arranged on the inner convex expansion block, an expansion electromagnet is arranged in the convex telescopic groove, and a plurality of contraction limiting shafts are inserted into the inner convex expansion block, and a contraction sleeve spring is sleeved on the contraction limiting shaft;

[0007] The adsorption structure comprises a pulling T-shaped rod, a pulling disc connected to the pulling T-shaped rod, the pulling disc movably inserted into an outer convex cylindrical pipe, and a pulling sealing rubber ring arranged on the pulling disc; the adsorption structure further comprises a limiting shaft pipe movably inserted into the outer convex cylindrical pipe, a toothed limiting groove arranged on the limiting shaft pipe, and a limiting sliding block arranged on the pulling T-shaped rod and movably inserted into the inside of the toothed limiting groove.

[0008] Further, the auxiliary knocking assembly comprises a plurality of supporting shaft pipes movably inserted into the inner convex groove cylindrical pipe and the outer convex cylindrical pipe, a knocking convex block movably inserted into the inside of the supporting shaft pipe, and a knocking ball movably inserted into the knocking convex block; an adsorption electromagnet is arranged on the supporting shaft pipe, an adsorption magnet is arranged on the knocking convex block, and a sleeving spring (19) is sleeved on the knocking convex block.

[0009] Further, a circular ring rubber ring is arranged on the inner convex groove cylindrical pipe and the outer convex cylindrical pipe respectively.

[0010] Further, a wave friction block is arranged on the inner convex expansion block.

[0011] Further, the three pairs of stretching shaft pipes are arranged in a hexagonal shape.

[0012] Further, the supporting shaft pipes are arranged in a hexagonal shape.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The pin shaft dismounting tool of the coal mining heading machine has the advantages that: the inner convex groove cylindrical pipe and the outer convex cylindrical pipe are extruded and sleeved, the inner hexagonal expansion block and the pin shaft are sleeved, the magnetic repulsion of the three pairs of expansion electromagnets and expansion magnets is combined, the stable extrusion limiting fixation of the pin shaft is realized, and the stability of the equipment in the working process is ensured; the magnetic repulsion of the repulsion stretching circular ring electromagnet and the repulsion stretching circular ring magnet is combined, the stretching shaft pipe and the inner hexagonal expansion block are driven, the extrusion stretching of the pin shaft is realized, the equipment can adapt to pin shafts of different sizes and shapes, and the universality and flexibility are improved; the magnetic adsorption of the adsorption electromagnet and the adsorption magnet is utilized, the stretching of the knocking convex block is controlled, the elastic pushing of the sleeving spring is combined, the pin shaft inside the inner convex cylindrical pipe is knocked by the knocking ball, the pin shaft is effectively loosened, and the equipment is convenient to dismount and install; the stretching pulling T-shaped rod is utilized, the pulling disc is driven to rotate and lift, the pressure between the inner convex groove cylindrical pipe and the outer convex cylindrical pipe is changed, the convenient adjustment and limiting fixation of the equipment are realized, and the adaptability and use convenience of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the sectional view schematic diagram of the pin shaft dismounting tool of the utility model;

[0016] Figure 2It is side view section schematic view of the pin shaft dismounting tool of the utility model;

[0017] Figure 3 It is adsorption structure schematic view of the pin shaft dismounting tool of the utility model;

[0018] Figure 4 It is adsorption structure three-dimensional schematic view of the pin shaft dismounting tool of the utility model.

[0019] In the figure: 1, inner convex groove cylindrical pipe;2, outer convex cylindrical pipe;3, sealing ring block;4, inner hexagonal expansion block;5, inner convex expansion block;6, expansion magnet;7, expansion electromagnet;8, contraction limiting shaft;9, contraction sleeve spring;10, stretching shaft pipe;11, repulsion stretching ring magnet;12, repulsion stretching ring electromagnet;13, repulsion stretching ring block;14, support shaft pipe;15, knocking convex block;16, knocking ball;17, adsorption electromagnet;18, adsorption magnet;19, sleeve spring;20, pull T-shaped rod;21, pull disc;22, pull sealing rubber ring;23, limiting shaft pipe. Specific embodiments

[0020] The utility model will be further described below in combination with the drawings:

[0021] As Figures 1-4 Indicated, the utility model is a kind of pin shaft dismounting tool of coal mining heading machine, it is characterized by: including outer convex cylindrical pipe 2, outer convex cylindrical pipe 2 side is equipped with sealing ring block 3, sealing ring block 3 is equipped with inner convex groove cylindrical pipe 1, and inner convex groove cylindrical pipe 1 is located at the inside of outer convex cylindrical pipe 2, and inner convex groove cylindrical pipe 1 and outer convex cylindrical pipe 2 are equipped with ring rubber ring respectively;The inner convex groove cylindrical pipe 1 and outer convex cylindrical pipe 2 are equipped with auxiliary knocking assembly;Sealing ring block 3 is equipped with dismounting structure and adsorption structure;

[0022] The dismounting structure includes repulsion stretching ring block 13 movably inserted in the inside of inner convex groove cylindrical pipe 1, and the inside of inner convex groove cylindrical pipe 1 is equipped with repulsion stretching ring electromagnet 12, and repulsion stretching ring block 13 is equipped with repulsion stretching ring magnet 11;Three pairs of stretching shaft pipe 10 are inserted in repulsion stretching ring block 13 and arranged in hexagonal shape, and stretching shaft pipe 10 is equipped with inner hexagonal expansion block 4, and inner hexagonal expansion block 4 is equipped with convex expansion groove, and the inside of convex expansion groove is inserted with inner convex expansion block 5 respectively, and inner convex expansion block 5 is equipped with wave friction block;Expansion magnet 6 is equipped on the inner convex expansion block 5, and expansion electromagnet 7 is arranged in the convex expansion groove, and a plurality of contraction limiting shafts 8 are inserted in inner convex expansion block 5, and contraction limiting shaft 8 is equipped with contraction sleeve spring 9;

[0023] The adsorption structure comprises a pulling T-shaped rod 20, a pulling disc 21 connected to the pulling T-shaped rod 20, the pulling disc 21 movably inserted into the outer convex cylindrical pipe 2, a pulling sealing rubber ring 22 arranged on the pulling disc 21, a limiting shaft pipe 23 movably inserted into the outer convex cylindrical pipe 2, and a limiting slot arranged on the limiting shaft pipe 23.

[0024] The auxiliary knocking assembly comprises a plurality of support shaft pipes 14 movably inserted into the inner convex groove cylindrical pipe 1 and the outer convex cylindrical pipe 2, the support shaft pipes 14 arranged in a hexagonal shape, a knocking convex block 15 movably inserted into the inner side of the support shaft pipe 14, a knocking ball 16 movably inserted into the knocking convex block 15, an adsorption electromagnet 17 arranged on the support shaft pipe 14, an adsorption magnet 18 arranged on the knocking convex block 15, and a sleeving spring 19 sleeved on the knocking convex block 15.

[0025] The inner convex groove cylindrical pipe 1 and the outer convex cylindrical pipe 2 are extruded and sleeved on the equipment, the inner hexagonal telescopic block 4 is sleeved on the pin shaft, the three pairs of expansion electromagnets 7 are energized, the three pairs of expansion electromagnets 7 repel the three pairs of expansion magnets 6 respectively, the three pairs of expansion magnets 6 drive the inner convex expansion blocks 5 thereon respectively, the inner convex expansion blocks 5 are extruded in a hexagonal shape, thereby driving the pin shaft to be extruded and fixed, the repulsion stretching ring electromagnet 12 is energized, the repulsion stretching ring electromagnet 12 repels the repulsion stretching ring magnet 11, the repulsion stretching ring drives the repulsion stretching ring block 13 thereon, the repulsion stretching ring block 13 drives the three pairs of stretching shaft pipes 10 thereon, the three pairs of stretching shaft pipes 10 drive the inner hexagonal telescopic block 4 thereon, thereby stretching the three pairs of inner convex expansion blocks 5 on the inner hexagonal telescopic block 4, thereby driving the pin shaft to be extruded and stretched, and the auxiliary knocking assembly knocks the pin shaft to be loosened.

[0026] The plurality of adsorption electromagnets 17 are energized, the plurality of adsorption magnets 18 are magnetically adsorbed respectively, thereby enabling the plurality of knocking convex blocks 15 to be stretched and contracted along the inner sides of the plurality of support shaft pipes 14, the plurality of knocking convex blocks 15 extrude and contract the plurality of sleeving springs 19, the adsorption electromagnets 17 are disconnected, the deformed sleeving springs 19 elastically push the knocking convex blocks 15, the knocking convex blocks 15 drive the knocking balls 16 thereon to be elastically pushed, and the plurality of knocking balls 16 knock the pin shaft on the inner side of the inner convex cylindrical pipe 1, thereby loosening the pin shaft.

[0027] By stretching the T-shaped rod 20, the pulling disc 21 on the T-shaped rod 20 is lifted and rotated by pulling, the pulling sealing rubber ring 22 on the pulling disc 21 is driven by the pulling disc 21, the pulling disc 21 is contracted in the inner side of the outer convex cylindrical pipe 2, so that the pressure between the inner convex groove cylindrical pipe 1 and the outer convex cylindrical pipe 2 is changed and adjusted, so as to drive the equipment to be limited and fixed.

Claims

1. A pin shaft dismounting tool for a coal mining heading machine, characterized in that: The utility model provides an external convex type cylinder pipe (2) is provided with a sealed circular ring block (3) on one side, the sealed circular ring block (3) is provided with an inner convex groove cylinder pipe (1), and the inner convex groove cylinder pipe (1) is located at the inside of the external convex type cylinder pipe (2);The inner convex groove cylinder pipe (1) and the external convex type cylinder pipe (2) are provided with an auxiliary knocking assembly;The sealed circular ring block (3) is provided with a dismounting structure and an adsorption structure; The dismounting structure includes repulsion stretching circular ring block (13) movably inserted into the inner side of the inner convex groove cylinder pipe (1), the inner side of the inner convex groove cylinder pipe (1) is provided with repulsion stretching circular ring electromagnet (12), and the repulsion stretching circular ring block (13) is provided with repulsion stretching circular ring magnet (11);Three pairs of stretching shaft pipes (10) are inserted into the repulsion stretching circular ring block (13), the stretching shaft pipe (10) is provided with an inner hexagonal telescopic block (4), the inner hexagonal telescopic block (4) is provided with a convex telescopic groove, and the inner side of the convex telescopic groove is respectively inserted into an inner convex expansion block (5);The inner convex expansion block (5) is provided with expansion magnet (6), the convex telescopic groove is provided with expansion electromagnet (7), and the inner convex expansion block (5) is further inserted into a plurality of contraction limiting shafts (8), and the contraction limiting shaft (8) is provided with a contraction sleeve spring (9); The adsorption structure includes pull T-shaped rod (20), the pull T-shaped rod (20) is connected with pull disc (21), the pull disc (21) is movably inserted into the external convex type cylinder pipe (2), and the pull disc (21) is provided with pull sealing rubber ring (22);The adsorption structure further includes a limiting shaft pipe (23) movably inserted into the external convex type cylinder pipe (2), the limiting shaft pipe (23) is provided with a toothed limiting groove, the pull T-shaped rod (20) is provided with a limiting sliding block, and the limiting sliding block is movably inserted into the inner side of the toothed limiting groove.

2. A pin puller tool for a coal mining heading machine as claimed in claim 1, characterised in that: The auxiliary knocking assembly includes a plurality of support shaft pipes (14) inserted into the inner convex groove cylinder pipe (1) and the external convex type cylinder pipe (2), the inner side of the support shaft pipe (14) is movably inserted into a knocking convex block (15), and the knocking convex block (15) is movably inserted into a knocking ball (16);The support shaft pipe (14) is provided with an adsorption electromagnet (17), the knocking convex block (15) is provided with an adsorption magnet (18), and the knocking convex block (15) is provided with a sleeve spring (19).

3. A pin puller tool for a coal mining heading machine as claimed in claim 2, characterised in that: The inner convex groove cylinder pipe (1) and the external convex type cylinder pipe (2) are respectively provided with a circular ring rubber ring.

4. A pin puller tool for a coal mining heading machine as claimed in claim 3, characterised in that: The inner convex expansion block (5) is provided with a wave friction block.

5. A pin shaft dismounting tool for a coal winning machine as claimed in claim 4, characterized in that: The three pairs of stretching shaft pipes (10) are hexagonally arranged.

6. A pin shaft dismounting tool for a coal winning machine as claimed in claim 5, characterized in that: The support shaft pipe (14) is hexagonally arranged.

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