CN212428235U

CN212428235U - A safety protective guard for coal pulverizer overhauls

Info

Publication number: CN212428235U
Application number: CN202020606180.9U
Authority: CN
Inventors: 刘佳; 侯金山; 张贵年
Original assignee: China Energy Engineering Group Tianjin Electric Power Construction Co ltd
Current assignee: China Energy Engineering Group Tianjin Electric Power Construction Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-01-29
Anticipated expiration: 2030-04-22

Abstract

The utility model relates to a safety protective guard for coal pulverizer overhauls, a serial communication port, including a plurality of rail guard units that can dismantle the connection, be equipped with the spacing groove that corresponds from top to bottom in the outside of connecting block, ann has the casing in the outside of sub-railing and female railing, and the rigid coupling has the compression spring coaxial with the pin rod between limiting plate and casing. The utility model discloses it is convenient to remove, the setting has the rail guard unit of sub-railing and female railing, compare with setting up the scaffold frame guardrail on overhauing the platform, it is convenient to assemble and dismantle, through setting up the mounting panel, remove the foot and remove the wheel, it is convenient to move, through setting up firm foot in accomodating the inslot, cooperation pin rod and connection handle, stable in structure, make on firm foot embedding coal pulverizer housing maintenance platform all around, it is more stable to make whole rail guard unit place, avoided pounding maintainer because of tumbleing, the security of normal maintenance work has been improved.

Description

A safety protective guard for coal pulverizer overhauls

Technical Field

The utility model relates to a rail guard technical field especially relates to a safety protective guard for coal pulverizer overhauls.

Background

The main vulnerable parts of the coal mill comprise a tripod, a grinding roller, a grinding disc, a nozzle ring, a static ring, a cylinder wall and the like, and are necessary parts for large detection of the coal mill each time, the coal mill separator needs to be pulled away during maintenance, and then the tripod, the grinding roller, the grinding disc, the nozzle ring and other parts are lifted out of the coal mill shell for maintenance, a deep pit with the depth of about 3m and the diameter of 4.5m is formed in the coal mill shell at the moment, and certain potential safety hazards exist in operation in the coal mill shell or on a maintenance platform.

Set up the scaffold frame guardrail around the coal pulverizer casing usually and put on overhauing the platform, but the dismouting is loaded down with trivial details, need move very inconvenient during the maintenance, puts the shakiness moreover, often injures maintainer because of tumbleing, brings very big puzzlement for normal maintenance work.

Disclosure of Invention

The utility model discloses aim at solving prior art not enough, and provide a safety protective guard for coal pulverizer overhauls.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

a safety protective guard for overhauling a coal mill is characterized by comprising a plurality of protective guard units which are detachably connected, wherein each protective guard unit comprises a sub-railing and a main railing, the sub-railing and the main railing are correspondingly arranged, a plurality of horizontal railings are fixedly connected between the sub-railing and the main railing from top to bottom, an inner guardrail is fixedly connected at the centers of the sub-railing and the main railing, a hydraulic jack is fixedly connected at the bottom of the inner guardrail, a horizontal mounting plate is coaxially arranged at the bottom of the hydraulic jack, front and back corresponding moving feet are arranged on the left side and the right side of the lower surface of the mounting plate, moving wheels are arranged at the bottoms of the moving feet, outer guardrails which are symmetrical relative to the inner guardrail are arranged on two sides of the inner guardrail and fixedly connected between the railing at the top end and the railing at the bottom end, lifting rails are arranged on the outer sides of the outer guardrails, bottom opening accommodating grooves are formed in the lower portions of the sub-railing and the main railing, the storage groove is internally provided with a stabilizing foot, a connecting block which is matched with the storage groove is arranged above the stabilizing foot, a connecting rod is fixedly connected between the connecting block and the stabilizing foot, a spring assembly is fixedly connected between the connecting block and the top end wall of the storage groove, a horizontal lifting plate is fixedly connected to the inner side of the connecting block, vertical holes which are communicated with the storage groove are arranged at the inner sides of the sub railing and the main railing, one end of the lifting plate passes through the corresponding vertical hole and is positioned in the corresponding lifting track, a connecting handle is fixedly connected to the lifting plate between the vertical hole at the same side and the lifting track, limiting grooves which correspond up and down are arranged at the outer sides of the connecting block, a shell is arranged at the outer sides of the sub railing and the main railing, a horizontal pin rod is arranged in the shell, one end of the pin rod slides through the side wall of the storage groove and is matched with the limiting groove, and the other end of the pin rod passes through the side wall of the, a limiting plate is coaxially and fixedly connected to the pin rod in the shell, and a compression spring coaxial with the pin rod is fixedly connected between the limiting plate and the shell.

The upper portion of sub-railing is equipped with a plurality of equipment grooves from top to bottom, and the equipment groove is including the equipment recess that is located the sub-railing outside and the equipment through-hole that is located sub-railing, and the equipment recess sets up with corresponding equipment through-hole parallel and level.

And the outer side of the upper part of the female handrail is provided with an assembling lug corresponding to the assembling groove, and the length of the assembling lug is greater than the sum of the lengths of the pin rod and the pull ring.

The utility model has the advantages that: the utility model discloses it is convenient to remove, the setting has the rail guard unit of sub-railing and female railing, compare with setting up the scaffold frame guardrail on overhauing the platform, it is convenient to assemble and dismantle, through setting up the mounting panel, remove the foot and remove the wheel, it is convenient to move, through setting up firm foot in accomodating the inslot, cooperation pin rod and connection handle, stable in structure, make on firm foot embedding coal pulverizer housing maintenance platform all around, it is more stable to make whole rail guard unit place, avoided pounding maintainer because of tumbleing, the security of normal maintenance work has been improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1-stabilizing feet; 2-a storage groove; 3-a connecting rod; 4, connecting blocks; 5-limiting groove; 6-a spring assembly; 7-a lifting plate; 8-connecting a handle; 9-lifting rail; 10-an assembly groove; 101-assembling a groove; 102-assembling through holes; 11-sub-railings; 12-outer guard rail; 13-a railing; 14-hydraulic jack; 15-mounting a plate; 16-moving feet; 17-female railing; 18-assembly bumps; 19-a pin rod; 20-a limiting plate; 21-a compression spring; 22-a tab; 23-a moving wheel;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1, a safety guard rail for coal mill maintenance is characterized by comprising a plurality of guard rail units which are detachably connected, wherein each guard rail unit comprises a sub guard rail 11 and a mother guard rail 17, the sub guard rail 11 and the mother guard rail 17 are correspondingly arranged, a plurality of horizontal guard rails 13 are fixedly connected between the sub guard rail 11 and the mother guard rail 17 from top to bottom, an inner guard rail is fixedly connected at the centers of the sub guard rail 11 and the mother guard rail 17, a hydraulic jack 14 is fixedly connected at the bottom of the inner guard rail, a horizontal mounting plate 15 is coaxially arranged at the bottom of the hydraulic jack 14, front and back corresponding moving feet 16 are arranged at the left side and the right side of the lower surface of the mounting plate 15, moving wheels 23 are arranged at the bottom of the moving feet 16, outer guard rails 12 which are symmetrical relative to the inner guard rail are arranged at the two sides of the inner guard rail, the outer guard rails 12 are fixedly connected between the topmost guard rail 13 and the bottommost guard rail 13, and a lifting track 9 is arranged at the, the lower parts of the sub railing 11 and the female railing 17 are respectively provided with a containing groove 2 with an opening at the bottom, a stabilizing foot 1 is arranged in the containing groove 2, a connecting block 4 matched with the containing groove 2 is arranged above the stabilizing foot 1, a connecting rod 3 is fixedly connected between the connecting block 4 and the stabilizing foot 1, a spring assembly 6 is fixedly connected between the connecting block 4 and the top end wall of the containing groove 2, a horizontal lifting plate 7 is fixedly connected at the inner side of the connecting block 4, vertical holes communicated with the containing groove 2 are arranged at the inner sides of the sub railing 11 and the female railing 17, one end of the lifting plate 7 penetrates through the corresponding vertical hole and is positioned in the corresponding lifting track 9, a connecting handle 8 is fixedly connected on the lifting plate 7 between the vertical hole at the same side and the lifting track 9, the outer side of the connecting block 4 is provided with a limiting groove 5 which corresponds up and down, the outer sides of the sub railing 11 and the female railing 17 are provided with a shell, a horizontal pin rod 19 is arranged in the shell, one end of the pin rod 19 penetrates through the side wall of the accommodating groove 2 in a sliding manner to be matched with the limiting groove 5, the other end of the pin rod 19 penetrates through the side wall of the shell, is positioned on the outer side of the shell and fixedly connected with a pull ring 22, the pin rod 19 positioned in the shell is coaxially and fixedly connected with a limiting plate 20, and a compression spring 21 coaxial with the pin rod 19 is fixedly connected between the limiting plate 20 and the shell.

The upper portion of the sub-handrail 11 is provided with a plurality of assembling grooves 10 from top to bottom, each assembling groove 10 comprises an assembling groove 101 located on the outer side of the sub-handrail 11 and an assembling through hole 102 located on the sub-handrail 11, and the assembling grooves 101 are arranged in parallel and level with the corresponding assembling through holes 102.

The upper outer side of the female handrail 17 is provided with an assembling projection 18 corresponding to the assembling groove 10, and the length of the assembling projection 18 is greater than the sum of the lengths of the pin 19 and the pull ring 22.

When the utility model is used, a plurality of guard railing units with the sub-railing 11 and the main railing 17 are arranged on the maintenance platform around the coal mill shell, an operator pulls the pull ring 22, the pull ring 22 drives the pin 19 to move out of the limiting groove 5 below the connecting block 4 through the compression spring 21, the connecting block 4 drives the stabilizing foot 1 to move out of the accommodating groove 2 under the action of the spring assembly 6, so that the stabilizing foot 1 is embedded into the maintenance platform around the coal mill shell, meanwhile, the pin 19 moves into the limiting groove 5 above the connecting block 4, the whole guard railing unit is more stably arranged, the damage to the maintainer caused by falling is avoided, the safety of normal maintenance work is improved, when the guard railing is moved, the hydraulic jack 14 drives the mounting plate 15 to move downwards, the mounting plate 15 contacts the moving wheel 23 with the upper surface of the connecting flange through the moving foot 16 and pushes the sub-railing 11 and the main railing 17 away from the maintenance platform, the pin rod 19 is arranged in the limiting groove 5 below the connecting block 4, so that the stabilizing foot 1 is arranged in the accommodating groove 2, the moving is convenient, compared with the scaffold guardrail arranged on the maintenance platform, the assembly and the disassembly of the protective guard unit are convenient, the utility model is convenient to move,

the present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. A safety protective guard for overhauling a coal mill is characterized by comprising a plurality of protective guard units which are detachably connected, each protective guard unit comprises a sub-railing (11) and a main railing (17), the sub-railing (11) and the main railing (17) are correspondingly arranged, a plurality of horizontal railings (13) are fixedly connected between the sub-railing (11) and the main railing (17) from top to bottom, inner guardrails are fixedly connected at the centers of the sub-railing (11) and the main railing (17), a hydraulic jack (14) is fixedly connected at the bottom of the inner guardrails, a horizontal mounting plate (15) is coaxially arranged at the bottom of the hydraulic jack (14), moving feet (16) which correspond to each other in the front and back are arranged on the left side and the right side of the lower surface of the mounting plate (15), moving wheels (23) are arranged at the bottoms of the moving feet (16), outer guardrails (12) which are symmetrical to the inner guardrails are arranged on the two sides of the inner guardrails, an outer guardrail (12) is fixedly connected between the topmost guardrail (13) and the bottommost guardrail (13), a lifting track (9) is arranged on the outer side of the outer guardrail (12), bottom-opening accommodating grooves (2) are formed in the lower portions of the sub-guardrail (11) and the mother guardrail (17), stabilizing feet (1) are arranged in the accommodating grooves (2), connecting blocks (4) matched with the accommodating grooves (2) are arranged above the stabilizing feet (1), connecting rods (3) are fixedly connected between the connecting blocks (4) and the stabilizing feet (1), spring assemblies (6) are fixedly connected between the connecting blocks (4) and the top end walls of the accommodating grooves (2), horizontal lifting plates (7) are fixedly connected to the inner sides of the connecting blocks (4), vertical holes communicated with the accommodating grooves (2) are formed in the inner sides of the sub-guardrail (11) and the mother guardrail (17), and one ends of the lifting plates (7) penetrate through the corresponding vertical holes and are located in the corresponding lifting tracks (9), lie in the vertical hole of homonymy and go up the rigid coupling in lifter plate (7) between lift track (9) and have connection handle (8), spacing groove (5) that correspond about being equipped with in the outside of connecting block (4), the casing has been ann in the outside of sub railing (11) and female railing (17), be equipped with horizontally pin rod (19) in the casing, the lateral wall and spacing groove (5) looks adaptation of accomodating groove (2) are passed in the one end slip of pin rod (19), the lateral wall that the other end of pin rod (19) passed the casing is located the outside of casing and the rigid coupling has pull ring (22), coaxial rigid coupling has limiting plate (20) on pin rod (19) that are located the casing, the rigid coupling has compression spring (21) coaxial with pin rod (19) between limiting plate (20) and casing.

2. The safety guard rail for overhauling the coal mill according to claim 1, wherein a plurality of assembling grooves (10) are formed in the upper portion of the sub rail (11) from top to bottom, each assembling groove (10) comprises an assembling groove (101) located on the outer side of the sub rail (11) and an assembling through hole (102) located on the sub rail (11), and the assembling grooves (101) are arranged in parallel with the corresponding assembling through holes (102).

3. The safety guard rail for coal mill overhaul according to claim 2, wherein the upper outer side of the female rail (17) is provided with an assembly projection (18) corresponding to the assembly groove (10), and the length of the assembly projection (18) is greater than the sum of the lengths of the pin rod (19) and the pull ring (22).