CN216137387U

CN216137387U - Install coal pulverizer draw-bar box of inspection hole additional

Info

Publication number: CN216137387U
Application number: CN202122138610.6U
Authority: CN
Inventors: 张建广
Original assignee: Tianjin Lanchao Power Maintenance Co ltd
Current assignee: Tianjin Lanchao Power Maintenance Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-03-29
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses a coal mill draw-bar box additionally provided with an access hole, which comprises a casing, wherein the inner wall of the casing is movably connected with a draw bar, the top end of the outer wall of the casing is provided with the access hole, the top end of the access hole is provided with a sealing element, the sealing element comprises through holes annularly distributed on the periphery of the access hole, the sealing element also comprises a fixing plate fixedly arranged at the top end of the inner wall of the casing, a metal disc is covered right above the access hole, a limiting bolt penetrates through the inside of the metal disc, and the limiting bolt can penetrate through the through holes and is in threaded connection with the fixing plate; through the access hole and the sealing member that set up, effectually avoided the loaded down with trivial details complicacy of the inside pull rod replacement process of current coal pulverizer, be favorable to using manpower sparingly the cost, improve the inside pull rod replacement efficiency of coal pulverizer.

Description

Install coal pulverizer draw-bar box of inspection hole additional

Technical Field

The utility model relates to the technical field of coal mills, in particular to a coal mill draw-bar box additionally provided with an access hole.

Background

The coal grinding process is a process of crushing coal and increasing the surface area of the coal, and the binding force between solid molecules needs to be overcome to increase the new surface area, so energy is consumed, the coal is ground into coal powder in a coal mill mainly by three modes of crushing, crushing and grinding, wherein the energy consumed in the crushing process is the least, the energy consumed in the grinding process is the most, and various coal mills have two or three modes in the grinding process, but the type of the coal mill depends on the type of the coal mill.

The inside pull rod wearing and tearing are serious when current coal pulverizer uses for a long time, if carry out the change of pull rod, need demolish the pull rod and hang out behind the trompil of draw-bar box top, and not only work load is big and cutting welding back at every turn will damage equipment next time, like this cutting welding back will damage equipment, for this reason we provide one kind and add the coal pulverizer draw-bar box who is equipped with the access hole.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the coal mill draw-bar box additionally provided with the access hole, and through the arranged access hole and the sealing piece, the complex and complicated process of replacing the draw bar in the existing coal mill is effectively avoided, the labor cost is saved, and the replacement efficiency of the draw bar in the coal mill is improved.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides an add coal pulverizer draw-bar box that is equipped with access hole, includes the casing, the inner wall swing joint of casing has the pull rod, the access hole has been seted up on the outer wall top of casing, the top of access hole is equipped with the sealing member, the sealing member includes that the ring type distributes in the outlying through-hole of access hole, the sealing member still includes the fixed plate of fixed mounting on casing inner wall top, it has the metal disc to cover directly over the access hole, spacing bolt is worn to be equipped with in the inside of metal disc, and spacing bolt can run through in through-hole and fixed plate threaded connection.

Preferably, the top end of the outer wall of the metal disc is fixedly provided with a handle, and the surface of the handle is wrapped with a heat insulation layer.

Preferably, the inner wall of the casing is symmetrically provided with a pressing frame, and the top end of the outer wall of the pressing frame is attached to the pull rod.

Preferably, the limiting bolts penetrate through the metal disc in an annular mode, and the number of the limiting bolts is equal to that of the through holes.

Preferably, the access hole is positioned right above the pull rod, and the aperture of the access hole is larger than the diameter of the pull rod.

Preferably, the fixed plate is a hollow circular plate, the aperture of the hollow part of the fixed plate is larger than that of the access hole, thread grooves are annularly formed in the surface of the fixed plate, and the thread grooves correspond to the through holes one to one.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. through the arranged access hole and the arranged sealing element, the complex and complicated process of replacing the internal pull rod of the existing coal mill is effectively avoided, the labor cost is saved, and the replacement efficiency of the internal pull rod of the coal mill is improved;

2. through the access hole and the sealing member that set up, effectually avoided the inside pull rod of current coal pulverizer to change and cause the damage to the device, be favorable to repeatedly changing to use and prevent that the device from damaging, increased the practicality of device.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the sealing member of FIG. 1 according to the present invention;

FIG. 3 is a cross-sectional view of the overall construction of the present invention;

wherein: 1. a housing; 2. pressing a frame; 3. a pull rod; 4. an access hole; 5. a seal member; 51. a metal disc; 52. a limit bolt; 53. a through hole; 54. a fixing plate; 55. a handle.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1 to 3, the coal mill draw-bar box additionally provided with the access hole comprises a casing 1, a draw-bar 3 is movably connected to the inner wall of the casing 1, the top end of the outer wall of the casing 1 is provided with the access hole 4, the top end of the access hole 4 is provided with a sealing element 5, the sealing element 5 comprises a through hole 53 annularly distributed on the periphery of the access hole 4, the sealing element 5 further comprises a fixing plate 54 fixedly installed on the top end of the inner wall of the casing 1, a metal disc 51 covers the top of the access hole 4, a limit bolt 52 penetrates through the metal disc 51, and the limit bolt 52 can penetrate through the through hole 53 and is in threaded connection with the fixing plate 54;

when the inner pull rod 3 of the coal mill needs to be replaced, firstly, the limiting bolt 52 in the sealing element 5 is rotated, so that the limiting bolt 52 is rotated to be separated from the inside of the fixing plate 54 in threaded connection with the threaded end, as shown in fig. 2, the limiting bolt 52 is pulled upwards, so that the limiting bolt 52 is separated from the through hole 53 and the metal disc 51 which are penetrated through by the limiting bolt, the metal disc 51 which is covered right above the access hole 4 is moved, then the pull rod 3 movably connected in the casing 1 is taken out through the access hole 4 to complete replacement, and through the arranged access hole 4 and the sealing element 5, the complex and complicated replacement process of the pull rod in the existing coal mill is effectively avoided, the labor cost is saved, and the replacement efficiency of the pull rod in the coal mill is improved; the device is effectively prevented from being damaged due to the replacement of the pull rod in the existing coal mill, the device is prevented from being damaged due to repeated replacement and use, and the practicability of the device is improved.

As shown in fig. 2, a handle 55 is fixedly mounted at the top end of the outer wall of the metal disc 51, and a heat insulation layer is wrapped on the surface of the handle 55; through setting up at metal disc 51 outer wall top fixed mounting's handle 55, the maintenance personal of being convenient for takes out metal disc 51 and breaks away from access hole 4 surface, through setting up at the insulating layer of handle 55 surface parcel, scalds the palm when avoiding maintenance personal to use handle 55.

As shown in fig. 3, the inner wall of the casing 1 is symmetrically provided with the pressing frames 2, and the top ends of the outer walls of the pressing frames 2 are attached to the pull rods 3; install the outer wall top and the pull rod 3 laminating of pressing frame 2 and pressing frame 2 through setting up at the inner wall symmetry of casing 1, be favorable to pressing frame 2 to support pull rod 3 and prevent that pull rod 3 from sliding and breaking away from casing 1.

As shown in fig. 2, the limiting bolts 52 are annularly arranged through the metal disc 51, and the number of the limiting bolts 52 is equal to the number of the through holes 53; the number of the limiting bolts 52 penetrating through the metal disc 51 and the limiting bolts 52 is equal to that of the through holes 53, so that the sealing performance and the stability of the metal disc 51 attached to the machine shell 1 are improved.

As shown in fig. 2, the manhole 4 is positioned right above the pull rod 3, and the aperture of the manhole 4 is larger than the diameter of the pull rod 3; the access hole 4 through setting up is located directly over pull rod 3 and the aperture of access hole 4 is greater than the diameter of pull rod 3, is favorable to the maintainer to take out pull rod 3 by access hole 4 completely when changing pull rod 3, prevents that pull rod 3 card is inside access hole 4.

As shown in fig. 2, the fixing plate 54 is a hollow circular plate, the aperture of the hollow portion of the fixing plate 54 is larger than the aperture of the access hole 4, a threaded groove is annularly formed on the surface of the fixing plate 54, and the threaded groove corresponds to the through hole 53 one by one; the aperture of the hollow part of the fixing plate 54, which is a hollow circular plate and the aperture of the fixing plate 54, is larger than the aperture of the access hole 4, so that the fixing plate 54 blocks the pull rod 3 when the maintainer takes out the pull rod 3, the surface of the fixing plate 54 is annularly provided with a thread groove, the thread groove and the through hole 53 are in one-to-one correspondence, the threaded screwing of the limiting bolt 52 into the fixing plate 54 is facilitated, and the fitting degree of the metal disc 51 and the machine shell 1 is increased.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an add coal pulverizer draw-bar box that is equipped with access hole, includes casing (1), the inner wall swing joint of casing (1) has pull rod (3), its characterized in that: an access hole (4) is formed in the top end of the outer wall of the shell (1), and a sealing element (5) is arranged at the top end of the access hole (4);

sealing member (5) are including the annular distribution in access hole (4) outlying through-hole (53), sealing member (5) are still including fixed mounting in fixed plate (54) on casing (1) inner wall top, it has metal disc (51) to cover directly over access hole (4), spacing bolt (52) are worn to be equipped with in the inside of metal disc (51), and spacing bolt (52) can run through in through-hole (53) and fixed plate (54) threaded connection.

2. The coal mill draw-bar box additionally provided with the access hole of claim 1, is characterized in that: the top end of the outer wall of the metal disc (51) is fixedly provided with a handle (55), and the surface of the handle (55) is wrapped with a heat insulation layer.

3. The coal mill draw-bar box additionally provided with the access hole of claim 1, is characterized in that: the inner wall of the casing (1) is symmetrically provided with a pressing frame (2), and the top end of the outer wall of the pressing frame (2) is attached to the pull rod (3).

4. The coal mill draw-bar box additionally provided with the access hole of claim 1, is characterized in that: the limiting bolts (52) penetrate through the metal disc (51) in an annular mode, and the number of the limiting bolts (52) is equal to that of the through holes (53).

5. The coal mill draw-bar box additionally provided with the access hole of claim 1, is characterized in that: the access hole (4) is located right above the pull rod (3), and the aperture of the access hole (4) is larger than the diameter of the pull rod (3).

6. The coal mill draw-bar box additionally provided with the access hole of claim 1, is characterized in that: the fixing plate (54) is a hollow circular plate, the aperture of the hollow part of the fixing plate (54) is larger than that of the access hole (4), thread grooves are annularly formed in the surface of the fixing plate (54), and the thread grooves correspond to the through holes (53) one by one.