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Gate-type nozzle of excavator with internal spraying

A roadheader and internal spraying technology, which is applied in the direction of spraying devices, spraying devices, cutting machines, etc., can solve the problems of easy clogging of dust and affect the cooling of cutting devices, and achieve the effect of avoiding clogging

Inactive Publication Date: 2011-07-20
SHANDONG KARTER HEAVY IND MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dust generated by the cutting can easily block the nozzles of the inner spraying device, so that the water cannot be sprayed smoothly from the nozzles, which affects the cooling of the cutting device.

Method used

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  • Gate-type nozzle of excavator with internal spraying
  • Gate-type nozzle of excavator with internal spraying
  • Gate-type nozzle of excavator with internal spraying

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0011] Such as Figure 1-Figure 4 A specific embodiment is shown, which includes an inner tube 1, an outer jacket 3 and a fixed ring 4, the inner tube 1 is provided with a gate 5 arranged in a plurality of fan-shaped valves, and the arc end of each fan-shaped valve is connected to the The inner wall of the inner tube 1 is hinged, the fixed ring 4 is fixed in the inner tube 1 and is located on the inner side of the shutter, the outer cover 3 is a tube body with an end cap on the front end, the outer cover 3 is slidably sleeved on the inner tube 1, and the inner tube 1 and the overcoat 3 are provided with a limit device and a seal ring 8, the limit device includes a limit boss 7 fixed on the inner wall of the overcoat 3 and a limit block 6 fixed on the outer wall of the inner tube 1; the seal ring 8 is fixed on the inner wall of the outer casing 3 and is located at the rearmost end of the outer casing 3, and the sealing ring 8 is in slidable and watertight contact with the inner...

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Abstract

The invention discloses a gate-type nozzle of an excavator with internal spraying, comprising an inner pipe, an outer sleeve and a fixed ring; the inner pipe is internally provided with a gate which is formed by arranging a plurality of fan-shaped valves; the arc end of each fan-shaped valve is articulated with the inner wall of the inner pipe; the fixed ring is fixed in the inner pipe and positioned at the inner side of the gate; the outer sleeve is sleeved on the inner pipe in a sliding way; a front end cover of the outer sleeve is provided with a hole; a spring is connected between the outer sleeve and the inner pipe; and when the spring is in free state, the front end cover of the outer sleeve and the fixed ring extrudes a plurality of fan-shaped valves into a flat round gate. The gate-type nozzle is opened only when a cutting body of the excavator needs to reduce temperature; after the gate-type nozzle is opened, due to the pressure action of water, the dust can not enter the nozzle; and when the cutting body of the excavator does not need to reduce temperature, the nozzle is in closed state, the dust also can not enter the nozzle, thus effectively avoiding blockage.

Description

technical field [0001] The invention relates to a nozzle, in particular to a ram type nozzle of an internal spraying roadheader. Background technique [0002] During the cutting operation, the roadheader will produce sparks due to friction and heat. At present, there is a roadheader that can spray internally. This type of roadheader is equipped with an internal spray device. During the cutting operation, the internal spray can reduce the cutting The temperature of the device can effectively suppress the sparks generated by friction during cutting operations. However, the dust generated by the cutting can easily block the nozzles of the inner spraying device, so that the water cannot be sprayed smoothly from the nozzles, which affects the cooling of the cutting device. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a ram-type nozzle of an excavator that can be sprayed inside, so that the nozzle is not easy to be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C35/187B05B1/22
Inventor 明聪聪贾锋刘文兴崔波波池文华
Owner SHANDONG KARTER HEAVY IND MACHINERY