Coal dust-proof cover plate with sealing device

Abstract

The application discloses a coal dust prevention cover plate with a sealing device and belongs to the technical field of coal feeders. The coal dust prevention cover plate with the sealing device comprises a gland body, a positioning groove is arranged in the interior of the gland body, a limiting table is arranged at the edge of the positioning groove, a bearing mounting groove is arranged at the middle bottom end of the positioning groove, and a positioning hole is arranged at the interior edge of the gland body. The gland is integrally machined by turning, the forming quality and use strength of the gland are ensured, a sealing framework is additionally arranged in the interior of the gland, the sealing space is increased, the contact area is increased, the amount of coal dust entering the bearing is reduced, the service life of the bearing is obviously increased, the installation or maintenance time is reduced through the meshing connection of the toothed plate and the gear rack, the sealing service life is increased, the wear amount is reduced, the failure rate is low during the use of the equipment, and the use strength is high.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of coal feeders, and particularly relates to a coal dust prevention cover plate with a sealing device. BACKGROUND

[0002] When the scraper-type coal feeder is running, the electric plug plate of the unloading device at the head of the scraper-type coal feeder controls the entry of coal quantity, the mechanical mode of opening and closing of the electric plug plate adopts the main shaft pulling and screwing in and out mode, the 7012C bearing is used for supporting on both sides of the main shaft, the gland cover plate is arranged on both sides of the bearing, the sealing of the gland cover plate adopts the sealing of felt or ordinary rubber, and the sealing of felt and ordinary rubber is used to avoid that the fine coal dust enters the bearing through the gland cover plates on both sides of the bearing during the running of the equipment, and causes the bearing to be worn and failed.

[0003] The existing sealing form adopts the sealing of felt, and when the felt sealing and rubber sealing are used for a long time, obvious aging, weathering and damage occur, which cannot be found in the gland, causes the coal dust to enter the bearing, and further aggravates the damage progress of the bearing, vicious cycle, shortens the service life of the bearing, and the existing sealing form has limited use space and size. SUMMARY

[0004] To solve the problems in the background art, the present application provides a coal dust prevention cover plate with a sealing device, which has the characteristics of tight sealing and good use effect.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a coal dust prevention cover plate with a sealing device, comprising a gland body, a sealing skeleton is additionally arranged in the interior of the gland body, a positioning groove is arranged in the interior of the gland body, a limiting table surface is arranged at the edge of the positioning groove, the limiting table surface is arranged protruding from the gland body, and a bearing mounting groove is arranged at the middle bottom end of the positioning groove.

[0006] Preferably, the interior of the sealing skeleton is symmetrically provided with movable tooth plates at both ends, one end of the movable tooth plate is connected with a limiting spring, the upper end of the movable tooth plate is provided with a connecting frame, and one end of the connecting frame is connected with a pull rod.

[0007] Preferably, the interior of the sealing skeleton is provided with an L-shaped sliding groove corresponding to the movable tooth plate and the pull rod.

[0008] Preferably, the inner wall surface of the gland body is provided with a rack corresponding to the movable tooth plate.

[0009] Preferably, the surface of the end of the pull rod away from the connecting frame is provided with an anti-skid sleeve.

[0010] Preferably, both ends of the sealing skeleton are provided with guide grooves, and the interior of the positioning groove is provided with a guide rail corresponding to the guide grooves.

[0011] Preferably, the connecting frame and the movable toothed plate are fixed by welding, and the pull rod and the connecting frame are connected by screw thread.

[0012] Preferably, the gland body is integrally formed by turning machining.

[0013] Preferably, the inner edge of the gland body is provided with a positioning hole.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] The turning integrally formed gland of the present application ensures the forming quality and use strength of the gland, and the sealing skeleton is additionally installed in the gland, so that the sealing space and the contact surface are increased when the gland body is used, the amount of coal powder entering the bearing is reduced, the service life of the bearing is obviously increased, the installation or maintenance time is reduced through the meshing connection of the toothed plate and the rack, the disassembly is convenient during regular inspection, the sealing service life is increased, the wear amount is reduced, the failure rate is low during the use of the equipment, and the use strength is high. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a top view of the cover plate structure of the present application;

[0017] Figure 2 is a sectional view of the cover plate structure of the present application;

[0018] Figure 3 is a top view of the sealing skeleton structure of the present application;

[0019] Figure 4 is a sectional view of the sealing skeleton structure of the present application.

[0020] In the figure: 1, limiting table; 2, positioning groove; 3, bearing installation groove; 4, positioning hole; 5, gland body; 6, sealing skeleton; 7, pull rod; 8, connecting frame; 9, movable toothed plate; 10, limiting spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0022] Please refer to Figures 1-4The application provides the following technical scheme: a coal dust prevention cover plate with a sealing device, which comprises a gland body 5, a sealing framework 6 is additionally arranged in the gland body 5, a positioning groove 2 is arranged in the gland body 5, a limiting table 1 is arranged at the edge of the positioning groove 2, the limiting table 1 protrudes from the gland body 5, and a bearing mounting groove 3 is arranged at the middle bottom end of the positioning groove 2.

[0023] Specifically, movable toothed plates 9 are symmetrically arranged at the two ends of the sealing framework 6, one end of each movable toothed plate 9 is connected with a limiting spring 10, and the upper end of each movable toothed plate 9 is provided with a connecting frame 8, one end of the connecting frame 8 is connected with a pull rod 7.

[0024] By adopting the above technical scheme, when the sealing framework 6 is installed, the pull rod 7 is first pulled to drive the connecting frame 8 to move in the L-shaped sliding groove, then the guide grooves at the two ends of the sealing framework 6 are corresponded with the guide rails in the positioning groove 2, then the sealing framework 6 is inserted into the inside of the positioning groove 2, and the pull rod 7 is loosened, at this time, the limiting spring 10 is reset to make the movable toothed plate 9 abut against the rack surface in the inside of the gland body 5, so that the installation stability of the sealing framework 6 is ensured.

[0025] Specifically, L-shaped sliding grooves are arranged in the inside of the sealing framework 6 and correspond to the movable toothed plates 9 and the pull rod 7.

[0026] By adopting the above technical scheme, the pull rod 7 can be freely moved, and the convenience of use is improved.

[0027] Specifically, a rack is arranged on the inner wall surface of the gland body 5 and corresponds to the movable toothed plate 9.

[0028] By adopting the above technical scheme, the movable toothed plate 9 is stably fixed after being inserted into the gland body 5, and the installation strength of the sealing framework 6 is improved.

[0029] Specifically, an anti-skid sleeve is arranged on the surface of the end of the pull rod 7, away from the connecting frame 8.

[0030] By adopting the above technical scheme, the anti-skid effect of the pull rod 7 is improved, and the sealing framework 6 cannot slide.

[0031] Specifically, guide grooves are arranged at the two ends of the sealing framework 6, and guide rails are arranged in the inside of the positioning groove 2 and correspond to the guide grooves.

[0032] By adopting the above technical scheme, the guide grooves at the two ends of the sealing framework 6 are corresponded with the guide rails in the positioning groove 2, then the sealing framework 6 is inserted into the inside of the positioning groove 2, and the installation accuracy of the sealing framework 6 is improved.

[0033] Specifically, the connecting frame 8 and the movable toothed plate 9 are fixed by welding, and the pull rod 7 and the connecting frame 8 are connected by threads.

[0034] By adopting the technical scheme, the use strength of the connecting frame 8 and the movable tooth plate 9 is improved, and the convenience of installation of the pull rod 7 is ensured.

[0035] Specifically, the gland body 5 is integrally formed by turning machining.

[0036] By adopting the technical scheme, the production of the gland body 5 is convenient, the forming effect is good, and the use strength is high.

[0037] Specifically, the inside edge of the gland body 5 is provided with a positioning hole 4.

[0038] By adopting the technical scheme, the gland body 5 is fixed on one side of the coal feeder through four screws passing through the positioning hole 4, and the firmness and stability of installation of the gland body 5 are improved.

[0039] The working principle and use process of the present application: when the present application is used, the bearings on both sides of the main shaft of the coal feeder need to be sealed and protected during use, and when protecting, the bearing installation groove 3 in the inside of the gland body 5 is installed in correspondence with the bearing, and at the same time, the sealing skeleton 6 can be installed in the inside of the positioning groove 2, so that the sealing space of the gland body 5 is increased during use, the contact area is increased, and the amount of coal powder entering the bearing can be reduced.

[0040] When installing the sealing skeleton 6, the pull rod 7 is first pulled to drive the connecting frame 8 to move in the L-shaped sliding groove, then the guide grooves at both ends of the sealing skeleton 6 are corresponded with the guide rails in the positioning groove 2, then the sealing skeleton 6 is inserted into the inside of the positioning groove 2, and the pull rod 7 is loosened, at this time, the limit spring 10 resets so that the movable tooth plate 9 abuts against the rack surface in the inside of the gland body 5, the time used for installation or maintenance is reduced, the disassembly is convenient during regular inspection, the sealing service life is increased, and the wear amount is reduced.

[0041] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A dust-proof cover plate with a sealing device, comprising a gland body and a sealing skeleton installed inside the gland body, characterized in that: The inside of the gland body is provided with a positioning groove, the edge of the positioning groove is provided with a limiting platform, the limiting platform protrudes from the gland body, and the middle bottom end of the positioning groove is provided with a bearing mounting groove; The inside of the sealing framework is symmetrically provided with a movable toothed plate at both ends, one end of the movable toothed plate is connected with a limiting spring, the upper end of the movable toothed plate is provided with a connecting frame, and one end of the connecting frame is connected with a pull rod; The inside of the sealing framework is provided with an L-shaped sliding groove corresponding to the movable toothed plate and the pull rod; The inner wall surface of the gland body is provided with a rack corresponding to the movable toothed plate; Both ends of the sealing framework are provided with guide grooves, and the inside of the positioning groove is provided with a guide rail corresponding to the guide grooves.

2. The anti-pulverized coal cover plate with sealing device according to claim 1, characterized in that: The surface of the end of the pull rod away from the connecting frame is provided with an anti-skid sleeve.

3. The dust-tight cover plate having a sealing device according to claim 1, characterized in that: The connecting frame and the movable toothed plate are integrally fixed by welding, and the pull rod and the connecting frame are connected through threads.

4. The dust-tight cover plate having a sealing device according to claim 1, characterized in that: The gland body is integrally formed by turning machining of 16Mng.

5. The dust-tight cover plate having a sealing device according to claim 1, characterized in that: The inside edge of the gland body is provided with a positioning hole.

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