CN213391821U

CN213391821U - Access door device of coal mill

Info

Publication number: CN213391821U
Application number: CN202021665760.1U
Authority: CN
Inventors: 陈亮; 雷连邦
Original assignee: Guixi Power Generation Co ltd
Current assignee: Guixi Power Generation Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-06-08
Anticipated expiration: 2030-08-11

Abstract

The utility model provides an access door device of coal pulverizer, including access door frame and door plant, the door plant passes through hinge assembly and connects on the coal pulverizer, hinge assembly includes that pivot one, card establish two mounting panel one of pivot one, pivot two, two of pivot two and connect the connecting plate of pivot one and pivot two the mounting panel welding is in the middle of the door plant, two the welding of mounting panel two is on the coal pulverizer, access door frame the place ahead is equipped with the installing support, be equipped with the internal thread hole on the installing support, the cover has the roof pressure lead screw on the internal thread hole, roof pressure lead screw one end has aligning sliding groove spare through interior bolt connection, be equipped with the arc draw-in groove that cooperation pivot one set up on the aligning sliding groove spare, the roof pressure lead screw other end has the hand wheel through interior bolt connection, the utility model discloses structural design is simple reasonable, The door plate can be easily and quickly opened and closed, and convenience is brought to maintenance of the coal mill.

Description

Access door device of coal mill

Technical Field

The utility model belongs to the technical field of coal pulverizer equipment technique and specifically relates to indicate an access door device of coal pulverizer.

Background

The coal pulverizer is one of the essential large-scale equipment in the thermal power factory, and is equipped with the manhole access door on the coal pulverizer, and traditional access door is as shown in fig. 1, and door plant (2) need be fixed on maintenance door frame (1) through a plurality of bolts (7), when the coal pulverizer overhauls, need dismantle these bolts (7) one by one and just can open the door plant, wait to overhaul to finish, must install one by one again and return, and it is more hard to waste time like this.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide an access door device of coal pulverizer, structural design is simple reasonable, can be light quick open and close the door plant, and it brings the convenience to overhaul for the coal pulverizer. In order to achieve the above purpose, the utility model adopts the following technical scheme:

(II) technical scheme

The utility model provides an access door device of coal pulverizer, is including setting up the access door frame on the coal pulverizer and covering the door plant at the access door frame, the door plant passes through hinge subassembly and connects on the coal pulverizer, hinge subassembly includes that pivot one, card establish two mounting panel one, pivot two of pivot one, two mounting panel two of pivot two and connect the connecting plate of pivot one and pivot two the welding of mounting panel one is in the middle of the door plant, two the welding of mounting panel two is on the coal pulverizer, it is equipped with the installing support to overhaul door frame the place ahead, be equipped with the internal thread hole on the installing support, the cover has the roof pressure lead screw on the internal thread hole, roof pressure lead screw one end has aligning chute spare through interior bolt connection, be equipped with the arc draw-in groove that cooperation pivot one set up on the aligning chute spare, the roof pressure lead screw other end has the hand wheel.

Further, the mounting bracket is longitudinally arranged in front of the access door frame.

Further, be connected with two subassemblies of hinge on the installing support, two subassemblies of hinge are including card external member, external member and the connecting axle of connecting card external member and external member, the welding of card external member is in maintenance door frame top or below, the external member welding is on the installing support.

(III) advantageous effects

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, the utility model discloses structural design is simple reasonable, can relax quick opening and close the door plant, and it is convenient to overhaul and bring for the coal pulverizer.

Drawings

FIG. 1 is a schematic view of a conventional access door;

fig. 2 is a schematic view of the present invention;

fig. 3 is a sectional view of the aligning chute member of the present invention.

The reference numbers illustrate:

1. access door frame 2, door panel 3, hinge subassembly 31, pivot one

32. Mounting plate I33, rotating shaft II 34, mounting plate II 35 and connecting plate

4. Mounting bracket 41, internal thread hole 42, jacking screw rod 43 and aligning chute piece

431. Arc-shaped clamping groove 432, bolt hole 433, screw rod hole 44 and hand wheel

45. Internal bolt 5, hinge subassembly 51, cutting ferrule 52, external member

53. Connecting shaft 6, coal mill 7 and bolt

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Referring to fig. 2 and 3, an access door device of a coal mill comprises an access door frame 1 arranged on the coal mill 6 and a door plate 2 covering the access door frame 1, wherein the door plate 2 is connected to the coal mill 6 through a hinge assembly 3, the hinge assembly 3 comprises a first rotating shaft 31, two first mounting plates 32 for clamping the first rotating shaft 31, a second rotating shaft 33, two second mounting plates 34 for clamping the second rotating shaft 33, and a connecting plate 35 for connecting the first rotating shaft 31 and the second rotating shaft 33, the two first mounting plates 32 are welded in the middle of the door plate 2, the two second mounting plates 34 are welded on the coal mill 6, a mounting bracket 4 is arranged in front of the access door frame 1, an internal threaded hole 41 is arranged on the mounting bracket 4, a jacking screw rod 42 is sleeved on the internal threaded hole 41, internal threaded holes 41 are arranged at two ends of the jacking screw rod 42, one end of the jacking screw rod 42 is connected with a self-aligning sliding groove member 43, the arc-shaped clamping groove 431 matched with the first rotating shaft 31 is formed in the aligning sliding groove piece 43, in order to enable the aligning sliding groove piece 43 to be better connected with the jacking lead screw 42, a lead screw hole 433 is formed in one end of the aligning sliding groove piece 43, a bolt hole 432 is formed in the other end of the aligning sliding groove piece 43, the bolt hole 432 is communicated with the lead screw hole 433, the inner bolt 45 penetrates through the bolt hole 432 to be connected to the jacking lead screw 42 but is not screwed, so that when the jacking lead screw 42 rotates, the arc-shaped clamping groove 431 can still be clamped and sleeved on the first rotating shaft 31, the other end of the jacking lead screw 42 is connected with the hand wheel 44 through the inner bolt 45, when the mounting support 4 is welded on the coal mill 6, the inner thread hole 41 in the mounting support 4 is guaranteed to be right in front of the first rotating shaft 31, and therefore the aligning sliding groove piece 43 on.

Because a hinge subassembly 3 transversely sets up, door plant 2 can only transversely rotate, and door plant 2 is rotatory can not be stopped by installing support 4 again, for reducing the height of installing support 4, installing support 4 vertically sets up 1 the place ahead of maintenance door frame.

In order to avoid the mounting bracket 4 to keep off in the middle of overhauing the door frame 1, and then lead to the inconvenient maintenance of people, be connected with two subassemblies of hinge 5 on the mounting bracket 4, two subassemblies of hinge 5 are including card external member 51, external member 52 and the connecting axle 53 of connecting card external member 51 and external member 52, the welding of card external member 51 is in overhauing door frame 1 top or below, the welding of external member 52 is on mounting bracket 4. When the door panel 2 is locked, the jacking screw rod 42 cannot rotate, and the clamping sleeve 51 and the sleeve 52 are kept on the same straight line; when the door panel 2 is loosened, the sleeve 52 can rotate along with the clamping sleeve 51, so that the mounting bracket 4 is pushed towards one side of the door panel 2, and the overhaul by people is facilitated.

The utility model discloses structural design is simple reasonable, can relax quick opening and close the door plant, and it brings the convenience to overhaul for the coal pulverizer.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an access door device of coal pulverizer, is including setting up the access door frame on the coal pulverizer and covering the door plant at the access door frame, the door plant passes through hinge subassembly and connects on the coal pulverizer, hinge subassembly includes that two mounting panel one, pivot two, the card of pivot one establish two mounting panel two of pivot two and connect the connecting plate of pivot one and pivot two, two of pivot one welds in the middle of the door plant, two of mounting panel two welds on the coal pulverizer, its characterized in that: the improved structure of the door frame is characterized in that an installation support is arranged in front of the maintenance door frame, an inner threaded hole is formed in the installation support, a jacking lead screw is sleeved on the inner threaded hole, one end of the jacking lead screw is connected with an aligning sliding groove piece through an inner bolt, an arc-shaped clamping groove matched with a first rotating shaft is formed in the aligning sliding groove piece, and the other end of the jacking lead screw is connected with a hand wheel through an inner bolt.

2. The access door apparatus of a coal pulverizer as defined in claim 1, wherein: the mounting bracket is longitudinally arranged in front of the maintenance door frame.

3. The access door apparatus of a coal pulverizer as defined in claim 2, wherein: the hinge assembly comprises a clamping sleeve piece, an external piece and a connecting shaft for connecting the clamping sleeve piece and the external piece, the clamping sleeve piece is welded above or below the maintenance door frame, and the external piece is welded on the mounting bracket.