Lubricating device of heading machine

Abstract

The utility model discloses a heading machine lubricating device which comprises a pin shaft, a left side lug plate and a right side lug plate, pin holes are formed in the left side lug plate and the right side lug plate, the pin shaft is inserted into the pin holes, and an inclined oil inlet channel is formed in the side end of the pin shaft. An annular oil channel is machined in an oil outlet to ensure grease flowing, compared with a traditional oil channel which directly enters a crossed structure from the center of a pin shaft and obliquely enters a non-crossed structure, the oil channel blockage problem is effectively prevented, the oil channel blockage problem is easier to deal with, a pin hole in a right side lug plate is changed into a stepped hole from a traditional through hole, the pin shaft is effectively prevented from moving towards the right side towards the axial direction, and the service life of the pin shaft is prolonged. Through the gland groove formed in the left side lug plate, the gland sinks in the left side lug plate, the outer portion of the left side lug plate is smooth and attractive, space is saved, the gland is fixed through a cylindrical head socket head cap screw and sinks in the gland, and after fixing, the pin shaft can be effectively prevented from moving towards the left side.

Description

Technical Field

[0001] The utility model relates to the technical field of pin shaft oil injection channels, and specifically relates to a lubricating device for a tunnel boring machine. Background Art

[0002] The roadheader is the main equipment in the mechanized tunneling system of coal mines. The oil filling point of the roadheader ( Figure 1 There are also many places for oiling the pins to increase the lubrication effect. The traditional pin oiling channel is the pin center directly into the cross structure ( Figure 2 As shown in the figure, due to the cross-channel structure, the oil channel is easily blocked during later use, and the blocked oil channel is not suitable for processing. Therefore, a roadheader lubrication device is proposed. Utility Model Content

[0003] The purpose of the present utility model is to provide a lubricating device for a roadheader to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tunnel boring machine lubrication device, comprising a pin shaft, a left ear plate and a right ear plate, wherein the left ear plate and the right ear plate are both provided with pin holes, the pin shaft is inserted into the pin hole, the side end of the pin shaft is provided with an oblique oil channel, and the surface of the pin shaft is provided with an annular oil channel connected to the oil outlet end of the oblique oil channel for the flow of grease.

[0005] Preferably, an oil cup is installed at the oil inlet end of the oblique oil channel, and a pressure cover is installed on the left ear plate to limit the axial movement of the pin shaft.

[0006] Preferably, a gland groove is provided on the left ear plate, and the gland is hidden in the gland groove and is fixed with a cylindrical hexagon socket screw and sunk into the gland.

[0007] Preferably, the oil inlet end of the oblique oil channel is located at the center of the side end of the pin shaft, and a screw plug is screwed at the oil filling port in the middle of the pressure cover. The screw plug corresponds to the oil inlet end of the oblique oil channel and is used to seal the oil inlet end of the oblique oil channel.

[0008] Preferably, the pin hole on the left ear plate is a through hole, and the pin hole on the right ear plate is a stepped hole, which is used to limit the axial movement of the pin shaft.

[0009] Compared with the prior art, the beneficial effects of the utility model are: a tunnel boring machine lubrication device, which changes the oil channel into an oblique entry type from the end face of the pin shaft, without cross oil channels, and processes an annular oil channel at the oil outlet to ensure the flow of grease. Compared with the traditional cross-cross structure that directly enters from the center of the pin shaft, the oblique entry non-cross type oil channel effectively prevents the oil channel blockage problem and is easier to deal with the oil channel blockage problem. The pin hole on the right ear plate is changed from a traditional through hole to a stepped hole, which effectively prevents the pin shaft from moving axially to the right. Through the pressure cover groove opened on the left ear plate, the pressure cover is sunk into the left ear plate, making the exterior of the left ear plate smooth and beautiful, saving space. The pressure cover is fixed with a cylindrical head hexagon socket screw and sunk into the pressure cover. After fixation, it can effectively prevent the pin shaft from moving axially to the left. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the distribution of oil filling points on a roadheader in the prior art;

[0011] Figure 2 This is a schematic diagram of the pin oil injection channel structure in the prior art;

[0012] Figure 3 This is a schematic diagram of the pin installation position structure of the tunnel boring machine of the present invention;

[0013] Figure 4 for Figure 3 Structural distribution diagram of the middle pin shaft and the first connecting part and the second connecting part;

[0014] Figure 5 for Figure 4 A cross-sectional view of the structure of the middle pin shaft, the first connecting part and the second connecting part;

[0015] Figure 6 for Figure 5 Schematic diagram of the center pin and its connection structure;

[0016] Figure 7 for Figure 5 Schematic diagram of the structure of the first connecting part.

[0017] In the figure: 1-pin shaft, 2-left ear plate, 3-right ear plate, 4-pin hole, 5-oblique oil channel, 6-annular oil channel, 7-oil cup, 8-gland, 9-gland groove, 10-screw plug. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1 , this is the distribution of oil filling points of the roadheader in the prior art.

[0020] See also Figure 2 , this is the traditional pin shaft oil injection channel and its baffle device in the prior art.

[0021] See also Figure 5-7 The utility model provides a technical solution: a lubrication device for a tunnel boring machine, comprising a pin shaft 1, a left ear plate 2 and a right ear plate 3, wherein the left ear plate 2 and the right ear plate 3 are both provided with a pin hole 4, the pin shaft 1 is inserted into the pin hole 4, and an oblique oil channel 5 is provided at the side end of the pin shaft 1, and an annular oil channel 6 connected with the oil outlet end of the oblique oil channel 5 is provided on the surface of the pin shaft 1 for the flow of grease.

[0022] An oil cup 7 is installed at the oil inlet end of the oblique oil passage 5 , and a pressure cover 8 is installed on the left ear plate 2 to limit the axial movement of the pin shaft 1 .

[0023] A gland groove 9 is provided on the left ear plate 2 , and the gland 8 is hidden in the gland groove 9 , fixed with a cylindrical hexagon socket screw and sunk into the gland 8 .

[0024] The oil inlet end of the oblique oil channel 5 is located at the center of the side end of the pin shaft 1, and a screw plug 10 is screwed to the oil filling port in the middle of the pressure cover 8. The screw plug 10 corresponds to the oil inlet end of the oblique oil channel 5 and is used to seal the oil inlet end of the oblique oil channel 5.

[0025] The pin hole on the left ear plate 2 is a through hole, and the pin hole on the right ear plate 2 is a stepped hole, which is used to limit the axial movement of the pin shaft 1.

[0026] See also Figure 3-4 The first connecting part on the tunnel boring machine is connected to the second connecting part through a pin shaft 1, and the first connecting part includes a left ear plate 2 and a right ear plate 3.

[0027] Working principle: by changing the oil passage to an oblique entry type from the end face of the pin shaft 1, without cross oil passages, the oil outlet of the oblique oil passage 5 is processed with an annular oil passage 6 to ensure the flow of grease. When filling oil, the grease enters the annular oil passage 6 along the oblique oil passage 5, and the grease is stored through the annular oil passage 6. When the first connection part and the second connection part rotate, lubrication is performed by grease, and the pin hole 4 on the right ear plate 3 is changed from a through hole to a stepped hole, which effectively prevents the pin shaft 1 from moving axially to the right. Through the pressure cover groove 9 opened on the left ear plate 2, the pressure cover 8 is sunk into the left ear plate 2, making the exterior of the left ear plate 2 smooth and beautiful, saving space, and the pressure cover 8 is fixed with a cylindrical head hexagon socket screw and sunk into the pressure cover 8. After fixing, it can effectively prevent the pin shaft 1 from moving axially to the left.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lubricating device for a roadheader, comprising a pin shaft, a left ear plate, and a right ear plate, wherein the left ear plate and the right ear plate are each provided with a pin hole, the pin shaft being inserted into the pin hole, and characterized in that: An oblique oil passage is provided at the side end of the pin shaft, and an annular oil passage is provided on the surface of the pin shaft and is communicated with the oil outlet end of the oblique oil passage for grease flow.

2. The tunnel boring machine lubrication device according to claim 1, characterized in that: An oil cup is installed at the oil inlet end of the oblique oil passage, and a pressure cover is installed on the left ear plate to limit the axial movement of the pin shaft.

3. The tunnel boring machine lubrication device according to claim 2, characterized in that: A gland groove is provided on the left ear plate, and the gland is hidden in the gland groove and is fixed with a cylindrical hexagon socket screw and sunk into the gland.

4. The tunnel boring machine lubrication device according to claim 3, characterized in that: The oil inlet end of the oblique oil passage is located at the center of the side end of the pin shaft, and a screw plug is screwed at the oil filling port in the middle of the pressure cover. The screw plug corresponds to the oil inlet end of the oblique oil passage and is used to seal the oil inlet end of the oblique oil passage.

5. The tunnel boring machine lubrication device according to claim 1, characterized in that: The pin hole on the left ear plate is a through hole, and the pin hole on the right ear plate is a stepped hole, which is used to limit the axial movement of the pin shaft.

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