Protective cover for pull rod of coal mill

Abstract

The utility model provides a coal mill pull rod protective cover, and relates to the technical field of coal mills, the coal mill pull rod protective cover comprises a pull rod body, the surface of the pull rod body is symmetrically sleeved with protective cover bodies, arc grooves are formed in the inner walls of the protective cover bodies and close to the center, and convex sealing discs are symmetrically arranged on the surface of the pull rod body and located in the arc grooves in a sleeved mode. And a spring is arranged on the surface of the pull rod body and located between the convex sealing discs in a sleeving mode, caulking grooves are formed in the positions, close to the top and the bottom, of the inner side wall of the protective cover body, and sealing rings are embedded into the caulking grooves. According to the utility model, the two protective cover bodies cover the surface of the pull rod body, the mounting covers cover the tops and the bottoms of the protective cover bodies, the vertical rods penetrate through the centers of the convex plates, and the mounting pieces are rotated to enable the inner bevel edges of the mounting covers to extrude the outer bevel edges; and the effect that the protective cover body extrudes the sealing gasket mutually can be achieved, and therefore the effect that the protective cover body can be conveniently installed can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mill technical field especially relates to coal mill pull rod protective cover. BACKGROUND

[0002] The coal mill pull rod protective cover is a device for protecting the pull rod of the coal mill. The pull rod of the coal mill bears certain tension and friction force and other forces during work. The protective cover can prevent external factors such as dust, coal powder, moisture and the like from causing corrosion and wear and tear of the pull rod. At the same time, it can also avoid the danger of accidental contact of personnel with the moving pull rod, thereby playing a role in safety protection.

[0003] The existing coal mill pull rod protective cover usually needs multiple bolts for installation and fixation during the installation process, which is relatively troublesome and can affect the installation and dismounting efficiency, thereby being inconvenient for maintenance and replacement of the protective cover. Therefore, the coal mill pull rod protective cover is needed to solve the above problems. SUMMARY

[0004] The utility model discloses a coal mill pull rod protective cover which can solve the problem of the existing technology that the coal mill pull rod protective cover usually needs multiple bolts for installation and fixation during the installation process.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal mill pull rod protective cover, comprising a pull rod body, a protective cover body is symmetrically sleeved on the surface of the pull rod body, arc grooves are formed in the inner wall of the protective cover body and close to the center, convex sealing discs are symmetrically sleeved on the surface of the pull rod body and inside the arc grooves, springs are sleeved on the surface of the pull rod body and between the convex sealing discs, embedding grooves are formed in the inner wall of the protective cover body and close to the top and bottom, sealing rings are embedded in the embedding grooves, installation covers are sleeved on the surface of the pull rod body and above and below the protective cover body, the inner walls of the two installation covers are respectively attached to the top and bottom of the protective cover body, convex plates are fixedly connected to the surface of the installation covers in a symmetrical manner, vertical rods are arranged between the convex plates, the two ends of the vertical rods penetrate through the convex plates and are slidably connected thereto, limit discs are fixedly connected to the bottom of the vertical rods, installation pieces are sleeved and threadedly connected to the top of the vertical rods, and a sealing gasket is arranged between the two protective cover bodies.

[0006] Preferably, the inner walls of the convex sealing discs are slidably connected to the surface of the pull rod body, recesses are formed in the top and bottom inner walls of the arc grooves, and the convex sealing discs are matched with the recesses.

[0007] Preferably, the two ends of the springs are fixedly connected to the convex sealing discs, and the inner walls of the sealing rings are attached to the surface of the pull rod body.

[0008] Preferably, the surfaces of the limiting disc are symmetrically embedded and slidingly connected with circular blocks, and the top of the circular block is fixedly connected with the convex plate.

[0009] Preferably, the surfaces of the mounting member are fixedly connected with convex blocks at equal intervals, and the bottom of the mounting member is mounted with a circular ring.

[0010] Preferably, the top and the bottom of the protective cover body are provided with outer bevels, the inner side wall of the mounting cover is provided with an inner bevel, and the outer bevel is matched with the inner bevel.

[0011] Compared with the prior art, the utility model has the advantages and positive effects that,

[0012] 1、the utility model discloses a protective cover body is covered on the surface of the pull rod body, then the mounting cover is covered on the top and the bottom of the protective cover body, then the vertical rod is penetrated through the center of the convex plate, then the inner bevel of the mounting cover is extruded the outer bevel by rotating the mounting member, the effect that the protective cover body extrudes the sealing gasket can be achieved, thereby the effect that the protective cover body is conveniently installed can be achieved.

[0013] 2、the utility model discloses that the convex sealing disc is pushed by the spring two ends, the effect that the convex sealing disc is tightly attached to the inner wall of the top and the bottom of the arc groove can be achieved, thereby the effect that the sealing property between the pull rod body and the protective cover body is improved can be achieved. DRAWINGS

[0014] Figure 1 a whole structure perspective view of the protective cover of the pull rod of the coal mill is provided for the utility model,

[0015] Figure 2 a whole structure vertical section view of the protective cover of the pull rod of the coal mill is provided for the utility model,

[0016] Figure 3 a whole structure horizontal section view of the protective cover of the pull rod of the coal mill is provided for the utility model,

[0017] Figure 4 a partial structure perspective view of the protective cover of the pull rod of the coal mill is provided for the utility model,

[0018] Figure 5 a protective cover body structure perspective view of the protective cover of the pull rod of the coal mill is provided for the utility model.

[0019] Legend: 1, pull rod body;2, protective cover body;3, arc groove;4, recess;5, convex sealing disc;6, spring;7, embedded groove;8, sealing ring;9, mounting cover;10, convex plate;11, vertical rod;12, limiting disc;13, circular block;14, mounting member;15, convex block;16, circular ring;17, sealing gasket;18, outer bevel;19, inner bevel. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, as Figures 1-5 As shown, this utility model provides a protective cover for a coal mill pull rod, including a pull rod body 1. A protective cover body 2 is symmetrically fitted onto the surface of the pull rod body 1. An arc groove 3 is formed on the inner wall of the protective cover body 2 near its center. A convex sealing disc 5 is symmetrically fitted onto the surface of the pull rod body 1 within the arc groove 3. A spring 6 is fitted onto the surface of the pull rod body 1 between the convex sealing discs 5, which can push the convex sealing discs 5 at both ends to compress the top and bottom inner walls of the arc groove 3. A groove 7 is formed on the inner side wall of the protective cover body 2 near both the top and bottom. A sealing ring 8 is embedded in the groove 7, which can seal the pull rod body 1 and the protective cover body 2. A protective cover body 2 is symmetrically fitted onto the surface of the pull rod body 1 above and below the protective cover body 2. There are two mounting covers 9, the inner walls of which are respectively attached to the top and bottom of the protective cover body 2. The surfaces of the mounting covers 9 are symmetrically fixedly connected with protruding plates 10. Vertical rods 11 are provided between the protruding plates 10. Both ends of the vertical rods 11 pass through the protruding plates 10 and are slidably connected to them. The bottom of the vertical rods 11 is fixedly connected with a limit plate 12. The top of the vertical rods 11 is fitted with and threadedly connected with an installation part 14. A sealing gasket 17 is provided between the two protective cover bodies 2. This can cover the top and bottom of the protective cover body 2 with the mounting covers 9. At this time, by passing the vertical rods 11 through the center of the protruding plates 10, and then by rotating the installation part 14, the inner bevel 19 of the mounting cover 9 is pressed against the outer bevel 18, so that the protective cover bodies 2 can press against each other to achieve the effect of sealing gasket 17, thereby facilitating the installation of the protective cover body 2.

[0023] Example 2, as Figures 1-5As shown, the inner side wall of the convex sealing disc 5 is in sliding connection with the surface of the pull rod body 1, the top and bottom inner walls of the arc groove 3 are provided with grooves 4, the convex sealing disc 5 is matched with the grooves 4, and the convex sealing disc 5 can be embedded in the grooves 4; the two ends of the spring 6 are fixedly connected with the convex sealing disc 5, and the inner side wall of the sealing ring 8 is attached to the surface of the pull rod body 1, so that the two ends of the spring 6 can be positioned; the surface of the limiting disc 12 is symmetrically embedded and in sliding connection with a circular block 13, the top of the circular block 13 is fixedly connected with the convex plate 10, and the circular block 13 can limit the limiting disc 12; the surface of the mounting piece 14 is fixedly connected with convex blocks 15 at equal intervals, and the bottom of the mounting piece 14 is provided with circular rings 16, so that the mounting piece 14 can be conveniently rotated; the top and bottom of the protective cover body 2 are provided with outer inclined edges 18, the inner side wall of the mounting cover 9 is provided with an inner inclined edge 19, the outer inclined edge 18 is matched with the inner inclined edge 19, the inner inclined edge 19 of the mounting cover 9 can extrude the outer inclined edge 18, and the protective cover body 2 can be extruded and fixed.

[0024] Working principle: the two protective cover bodies 2 are covered on the surface of the pull rod body 1, the mounting cover 9 is covered on the top and bottom of the protective cover body 2, the vertical rod 11 penetrates the center of the convex plate 10, the convex block 15 is embedded in the limiting disc 12, the limiting disc 12 can be limited, the inner inclined edge 19 of the mounting cover 9 extrudes the outer inclined edge 18 by rotating the mounting piece 14, the protective cover body 2 can extrude the sealing gasket 17, the protective cover body 2 can be conveniently installed, the two ends of the spring 6 push the convex sealing disc 5, the convex sealing disc 5 is tightly attached to the top and bottom inner walls of the arc groove 3, and the sealing property between the pull rod body 1 and the protective cover body 2 is improved.

[0025] The wiring diagram of the pull rod body 1 and the protective cover body 2 in the utility model belongs to the common knowledge in the field, the working principle is a known technology, and the model is selected according to actual use, so the control mode and wiring arrangement of the pull rod body 1 and the protective cover body 2 are not explained in detail.

[0026] The above is only a preferred embodiment of the utility model, and does not limit other forms of the utility model, any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the utility model to the above embodiments still belongs to the protection scope of the technical scheme of the utility model.

Claims

1. A protective cover for a coal mill tie rod, comprising a tie rod body (1), characterized in that: The surface of the pull rod body (1) is symmetrically fitted with a protective cover body (2). An arc groove (3) is formed on the inner wall of the protective cover body (2) near its center. A convex sealing disc (5) is symmetrically fitted on the surface of the pull rod body (1) inside the arc groove (3). A spring (6) is fitted on the surface of the pull rod body (1) between the convex sealing discs (5). A groove (7) is formed on the inner side wall of the protective cover body (2) near its top and bottom. A sealing ring (8) is embedded inside each groove (7). The surface of the pull rod body (1) and the area between the convex sealing discs (5) are... The upper and lower sides of the protective cover body (2) are fitted with mounting covers (9). The inner sidewalls of the two mounting covers (9) are respectively attached to the top and bottom of the protective cover body (2). The surfaces of the mounting covers (9) are symmetrically fixedly connected with protruding plates (10). Vertical rods (11) are provided between the protruding plates (10). The two ends of the vertical rods (11) pass through the protruding plates (10) and are slidably connected to them. The bottom of the vertical rods (11) is fixedly connected with a limiting plate (12). The top of the vertical rods (11) is fitted with and threaded with an installation part (14). A sealing gasket (17) is provided between the two protective cover bodies (2).

2. The protective cover for the coal mill tie rod according to claim 1, characterized in that: The inner sidewalls of the convex sealing disc (5) are slidably connected to the surface of the pull rod body (1), and the top and bottom inner walls of the arc groove (3) are provided with grooves (4), and the convex sealing disc (5) is adapted to the grooves (4).

3. The protective cover for the coal mill tie rod according to claim 1, characterized in that: Both ends of the spring (6) are fixedly connected to the convex sealing disc (5), and the inner sidewall of the sealing ring (8) is in contact with the surface of the pull rod body (1).

4. The protective cover for the coal mill tie rod according to claim 1, characterized in that: The surface of the limiting disk (12) is symmetrically embedded with and slidably connected to round blocks (13), and the top of the round blocks (13) is fixedly connected to the protrusion plate (10).

5. The protective cover for the coal mill tie rod according to claim 1, characterized in that: The surface of the mounting component (14) is fixedly connected with protrusions (15) at equal intervals, and the bottom of the mounting component (14) is equipped with a ring (16).

6. The protective cover for the coal mill tie rod according to claim 1, characterized in that: The protective cover body (2) has an outer bevel (18) at the top and bottom, and the mounting cover (9) has an inner bevel (19) on its inner sidewall. The outer bevel (18) and the inner bevel (19) are adapted to each other.

Images