The screw guider of the excavator fastens the impact frame to reciprocate the impact on the mining part

A technology of a guide and an excavator, applied in the field of machinery, can solve the problems of impact resistance, poor vibration resistance, safety accidents, and high block rate of a reciprocating impact excavator

Active Publication Date: 2018-03-02
刘素华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most coal shearers and roadheaders are drum-type rotary milling blanking machines, and most excavators are hydraulically driven single buckets for digging and breaking materials. With the development of science and technology, reciprocating impact shearers and reciprocating impact roadheaders and Reciprocating impact excavators are collectively referred to as reciprocating impact excavators. Reciprocating impact excavators have high block rate, less dust, low energy consumption, and high mining efficiency. The original reciprocating impact excavators will have upper impact guides and lower impact guides. The tooth holders of the impact head at both ends are connected with multiple short screws with a plurality of ordinary nuts in local multi-point connection or one end of the upper impact guide and the lower impact guide and the tooth holders of the impact head are respectively matched with multiple short screws. A common nut is locally multi-point connected, and the other end is connected to the guide rod with multiple short screws and multiple common nuts. The structure is complex, it takes up a lot of space, it is difficult to disassemble and assemble, and the tightening force of multiple bolts is unbalanced. The assembly error of the equipment components is large, the tensile strength is poor, and the impact resistance and vibration resistance are poor. Due to the high impact frequency and severe vibration of the reciprocating impact head, the bolts are easy to loosen and fall off, and the bolts need to be tightened frequently, which affects the normal operation of the equipment. It is easy to cause safety accidents and increase the amount of maintenance

Method used

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  • The screw guider of the excavator fastens the impact frame to reciprocate the impact on the mining part
  • The screw guider of the excavator fastens the impact frame to reciprocate the impact on the mining part
  • The screw guider of the excavator fastens the impact frame to reciprocate the impact on the mining part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Figure 1 to Figure 2Fasten the impact frame for the screw guider of the mining machine described in Embodiment 1 to impact the excavation part back and forth. The excavator screw guide fastens the impact frame to reciprocate the impact mining part, including the box body 5, the power driver 19, the screw guide 20, the guide connector 18, the impact power source and the impact head 13, etc., and the impact head 13 includes the tooth punch seat. 1 and punching teeth 2, etc., the guide connector 18 and the power driver 19 are arranged in the box body 5, the screw guide 20 includes the screw guide A12 and the screw guide B22, etc., the screw guide A12 and the screw guide B22 are formed by the box The body 5 is supported, the screw guide A12 and the screw guide B22 are set up and down, the screw guide A12 and the screw guide B22 can also be set left and right, and when a plurality of impact heads 13 are arranged, the screw guide A12 and the screw guide B22 can also be arran...

Embodiment 2

[0077] Such as image 3 As shown, the screw guider of the mining machine shown in Embodiment 2 fastens the impact frame to reciprocate and impacts the excavation part. The difference from Embodiment 1 is that the punch seat 1 can also include a guide rod positioning hole A24 and a guide rod positioning hole B26 etc. One end of the screw guide A6 is set in the guide rod positioning hole A24, one end of the screw guide B17 is set in the guide rod positioning hole B26, the screw guide A6 cooperates with the guide rod positioning hole A24, and the screw guide B17 and the guide rod positioning The hole B26 cooperates to increase the righting force of the screw guide A6, the screw guide B17, etc. against the tooth seat 1.

[0078] Others are with embodiment 1.

Embodiment 3

[0080] Such as Figure 4 to Figure 6 As shown, the screw guider of the mining machine shown in Embodiment 3 fastens the impact frame to reciprocate and impacts the excavation part. The difference from Embodiment 1 is that the punch seat 1 is provided with a counterbore 29, etc., and the guide nut 14 and the threaded rod 21 etc. in the counterbore 29 to fasten the reciprocating impact frame 25 tightly, the outer side of the counterbore 29 of the gear holder 1 is provided with a nut guard 28 etc., and a seal 30 etc. is provided between the nut guard 28 and the gear holder 1 . Such as Figure 4 As shown, the nut guard 28 is a punching tooth type nut guard 27; Figure 5 As shown, the nut guard 28 is a cover nut guard 31 .

[0081] Others are with embodiment 1.

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PUM

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Abstract

A reciprocating-impact excavating part of an excavating machine having impact frames fastened by threaded-rod guiding apparatus, comprising an enclosure (5), a power driver (19), threaded-rod guiding apparatus (20), a guiding member connector (18), an impact power source, and impact heads (13). The guiding member connector (18) and the power driver (19) are arranged within the enclosure (5). Threaded-rod guiding apparatus A (12) and threaded-rod guiding apparatus B (22) are supported by the enclosure (5). A guiding rod connecting member (7) is connected to threaded-rod guiding member A (6) and to threaded-rod guiding member B (17) in the enclosure (5). Threaded-rod guiding apparatus A (12) and threaded-rod guiding apparatus B (22) also comprise guiding bodies (9). The guiding bodies (9) are supported by the enclosure (5). Threaded rods are provided at one ends or either ends of threaded-rod guiding member A (6) and of threaded-rod guiding member B (17). Threaded-rod holes (10) are provided on impacting teeth bases (1). One ends of the threaded rods (21) are run through the threaded-rod holes (10) to be connected to the impacting teeth bases (1) outside of the enclosure (5) by using guiding nuts (14). The threaded rods (21) and the guiding nuts (14) assemble the threaded-rod guiding members, the threaded-rod connecting member (7), and the impacting teeth bases (1) into reciprocating impact frames (25). By driving the guiding rod connecting member (7), the power driver (19) drives the impact heads (13) into making reciprocating impacts.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a mining machine screw guider fastening impact frame reciprocatingly impacting the mining part, which is suitable for the field of mining or engineering machinery. Background technique [0002] At present, most coal shearers and roadheaders are drum-type rotary milling blanking machines, and most excavators are hydraulically driven single buckets for digging and breaking materials. With the development of science and technology, reciprocating impact shearers and reciprocating impact roadheaders and Reciprocating impact excavators are collectively referred to as reciprocating impact excavators. Reciprocating impact excavators have high block rate, less dust, low energy consumption, and high mining efficiency. The original reciprocating impact excavators will have upper impact guides and lower impact guides. The tooth holders of the impact head at both ends are connected with multiple short ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C25/08
CPCE21C25/02E21C35/08E21C35/18E21C35/183E21C35/19F16J15/16E21C27/28
Inventor 刘素华
Owner 刘素华
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