Totally-closed telescopic protective device of scraper reversed loader

Abstract

The utility model belongs to the technical field of scraper reversed loaders, and particularly relates to a totally-closed telescopic protective device of a scraper reversed loader, which comprises a shell and a protective mechanism assembled at the top end of the shell, the protective mechanism is composed of a first protective plate, a second protective plate and a third protective plate, a threaded rod is mounted on the inner side wall of a supporting plate, and the threaded rod is connected with the shell. A threaded rod is installed on the base, an adjusting sleeve is installed at the end of the threaded rod, a limiting block is installed at the end of the threaded rod, and the threaded rod is covered with a protective shell, so that the threaded rod is effectively protected through the protective shell, and accumulation of dust at the joint of the threaded rod and the adjusting sleeve is remarkably reduced; and the problem that in the follow-up adjusting process, threaded fit between the threaded rod and the adjusting sleeve is damaged is solved. And meanwhile, the threaded pin is ingeniously matched with the convex block, so that the protection mechanism can be conveniently assembled on the shell, the disassembly and assembly operation is convenient, and the installation stability of the protection mechanism is ensured. Through the design, the practicability and the maintenance convenience of the product are remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of scraper transfer machines, and in particular relates to a fully enclosed telescopic protective device for scraper transfer machines. Background Art

[0002] The transfer machine is one of the most important pieces of transportation equipment in fully mechanized coal mining faces in underground coal mines. However, it is also one of the areas where accidents frequently occur in fully mechanized coal mining faces. These include injuries caused by flying coal blocks, large pieces of coal squeezing out of the chute, and accidents caused by workers crossing the transfer machine instead of using the bridge. Therefore, to ensure the safety of workers working around the transfer machine, crossing the transfer bridge to and from the work face, and surrounding equipment, a safety protection device for the transfer machine is needed.

[0003] After searching, the patent number "CN202321615843.3" disclosed "a fully enclosed telescopic protective device for a scraper transfer machine" includes a shell, the bottom end of the shell is fixedly connected to a bracket, the outer wall of the shell is provided with a drive motor, and the top of the shell is provided with several groups of protective mechanisms. The protective mechanisms include a fixed plate, the inner side wall of the fixed plate is fixedly connected to a connecting shaft, the inner side wall of the fixed plate is fixedly connected to a slider 1, and the outer wall of the slider 1 is slidably connected to a sliding plate 1. The utility model opens the protective mechanism, so that the transfer machine closing device is closed except for the necessary coal flow channel at the joint between the scraper conveyor head and the transfer machine, and the other areas are all blocked to block the generated coal stone splashing, so that the staff can enter the vicinity of the machine to work when the machine is running, thereby improving safety and further improving the efficiency of transportation.

[0004] However, when the above-mentioned protective device is in use, it is installed through a connecting shaft, and the connecting shaft is designed, which will cause the protective device to fluctuate and swing. Therefore, manual operation is required to control the level when the protective device is opened for use. At the same time, there is a lack of protection mechanism on the protective device. When the transfer machine transports coal blocks, a large amount of dust will be generated. This dust mixed in the air is easily accumulated on the rotating shaft, thereby affecting the normal use of the rotating shaft. Utility Model Content

[0005] The purpose of the present utility model is to provide a fully enclosed telescopic protective device for a scraper transfer machine, aiming to solve the problem in the prior art. However, when the above-mentioned protective device is in use, it is installed through a connecting shaft, and the connecting shaft is designed, which will cause the protective device to swing up and down. In this way, manual operation is required to control the level of the protective device when it is opened for use. At the same time, the protective device lacks a protective mechanism. When the transfer machine transports coal blocks, a large amount of dust will be generated. The dust mixed in the air is easily accumulated on the rotating shaft, thereby affecting the normal use of the rotating shaft.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully enclosed telescopic protective device for a scraper transfer machine, comprising a shell and a protective mechanism assembled on the top of the shell, a bracket being installed at the bottom end of the shell, the protective mechanism being composed of a first protective plate, a second protective plate and a third protective plate, an outer wall of one side of the third protective plate being connected to a support plate, an inner side wall of the support plate being installed with a threaded rod, an adjusting sleeve being installed at the end of the threaded rod, a limiting block being installed at the end of the threaded rod, and an outer cover of the threaded rod being provided with a protective shell.

[0007] As a preferred fully enclosed telescopic protective device for a scraper transfer machine of the present invention, two second protective plates and two third protective plates are symmetrically arranged about the central axis of the first protective plate, and two support plates and threaded rods are also connected.

[0008] As a preferred fully enclosed telescopic protective device of a scraper transfer machine of the utility model, the adjustment sleeve and the threaded rod are threadedly connected, and the threads on the surfaces of the two threaded rods are opposite.

[0009] As a preferred fully enclosed telescopic protective device for a scraper transfer machine of the utility model, a support block is installed on the outer wall of the other side of the third protective plate, a screw rod is sleeved between the two support blocks, and a locking nut is connected to the surface of the screw rod.

[0010] As a preferred fully enclosed telescopic protective device for a scraper transfer machine of the present invention, the outer walls of the first protective plate and the second protective plate are both provided with a sliding groove, the interior of the sliding groove is equipped with a guide rod, the interior of the sliding groove is also equipped with a slider and is slidably connected to the surface of the guide rod, the slider located on the outer wall of the first protective plate is connected to the second protective plate, and the slider located on the outer wall of the second protective plate is connected to the third protective plate.

[0011] As a preferred fully enclosed telescopic protective device for a scraper transfer machine of the utility model, a fixing block is installed at the bottom end of the first protective plate, the outer side wall of the fixing block is connected to a mounting plate, the surface of the mounting plate is connected to a threaded pin, and a protrusion is installed at the end of the threaded pin.

[0012] As a preferred embodiment of the fully enclosed telescopic protective device of the scraper transfer machine of the present invention, the protrusion is fixedly connected to the housing through a threaded pin and a mounting plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This utility model effectively protects the threaded rod through the protective housing, significantly reducing dust accumulation at the connection between the threaded rod and the adjustment sleeve, and avoiding damage to the threaded fit between the threaded rod and the adjustment sleeve during subsequent adjustments. Furthermore, the clever coordination of the threaded pin and the bump allows the protective mechanism to be easily assembled to the housing, facilitating assembly and disassembly while ensuring a secure installation. This design significantly enhances the product's practicality and ease of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the disassembled structure of the fully enclosed telescopic protective device of the utility model;

[0017] Figure 2 This is a schematic diagram of the fully enclosed telescopic protective device and the housing installation structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the adjusting sleeve and the threaded rod of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the threaded pin and the fixing block of the utility model.

[0020] In the figure: 1. Shell; 2. Bracket; 3. Protective mechanism; 31. First protective plate; 32. Second protective plate; 33. Third protective plate; 4. Support plate; 5. Threaded rod; 6. Adjusting sleeve; 7. Limit block; 8. Protective shell; 9. Support block; 10. Screw; 11. Locking nut; 12. Fixing block; 13. Mounting plate; 14. Threaded pin; 15. Bump; 16. Slide groove; 17. Slider; 18. Guide rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1

[0023] See also Figure 1-4The utility model provides the following technical solutions: a fully enclosed telescopic protective device for a scraper transfer machine, comprising a shell 1 and a protective mechanism 3 assembled on the top of the shell 1, a bracket 2 is installed at the bottom end of the shell 1, the protective mechanism 3 is composed of a first protective plate 31, a second protective plate 32 and a third protective plate 33, an outer wall of one side of the third protective plate 33 is connected to a support plate 4, a threaded rod 5 is installed on the inner side wall of the support plate 4, an adjusting sleeve 6 is installed at the end of the threaded rod 5, a limiting block 7 is installed at the end of the threaded rod 5, and an outer cover of the threaded rod 5 is provided with a protective shell 8.

[0024] In the preferred embodiment, two second protective plates 32 and two third protective plates 33 are symmetrically provided about the central axis of the first protective plate 31 , and two support plates 4 and two threaded rods 5 are also connected.

[0025] In the preferred embodiment, the adjusting sleeve 6 and the threaded rod 5 are connected by threads, and the threads on the surfaces of the two threaded rods 5 are opposite to each other.

[0026] In the preferred embodiment, a support block 9 is installed on the outer wall of the other side of the third protective plate 33 , a screw rod 10 is sleeved between the two support blocks 9 , and a locking nut 11 is connected to the surface of the screw rod 10 .

[0027] In the preferred embodiment: the outer walls of the first protective plate 31 and the second protective plate 32 are both provided with a sliding groove 16, the interior of the sliding groove 16 is equipped with a guide rod 18, the interior of the sliding groove 16 is also equipped with a slider 17 and is slidably connected to the surface of the guide rod 18, the slider 17 located on the outer wall of the first protective plate 31 is connected to the second protective plate 32, and the slider 17 located on the outer wall of the second protective plate 32 is connected to the third protective plate 33.

[0028] In the embodiment, the protective shell 8 effectively protects the threaded rod 5, significantly reduces the accumulation of dust at the connection between the threaded rod 5 and the adjustment sleeve 6, and avoids the problem of damage to the threaded fit between the threaded rod 5 and the adjustment sleeve 6 during subsequent adjustment.

[0029] Specifically, the rotation of the adjustment sleeve 6 drives the threaded rod 5 to extend from the inside out. This action, in turn, pushes the third protective plate 33 to open, causing the third protective plate 33 to pull the slider 17 along the surface of the guide rod 18 and slide smoothly in the slide groove 16 to achieve opening. At the same time, the second protective plate 32 is also opened in the same manner, with the slider 17 sliding along the guide rod 18 in the slide groove 16. Prior to this, the position of the locking nut 11 must be adjusted in advance to ensure that it is close to both ends of the screw rod 10 to avoid hindering the deployment of the protective mechanism 3. Subsequently, the protective shell 8 connected to the side wall of the support plate 4 also begins to move. This is because the support plate 4 moves synchronously with the movement of the third protective plate 33, thereby driving the movement of the protective shell 8. Until the third protective plate 33 is fully deployed, the protective shell 8 will be accurately covered on the connection between the threaded rod 5 and the adjustment sleeve 6.

[0030] It should be noted that: the shell 1 is the external structure of the scraper transfer machine in the prior art. When the protective mechanism 3 is opened, the transfer machine closing device is closed except for the necessary coal flow channel at the joint between the scraper conveyor head and the transfer machine, and the other areas are closed to block the coal and stone splashes generated, so that the staff can enter and work near the machine when it is running, thereby improving safety and further improving transportation efficiency.

[0031] Example 2

[0032] See also Figure 1-4 A fixing block 12 is installed at the bottom end of the first protective plate 31, and the outer wall of the fixing block 12 is connected to a mounting plate 13. A threaded pin 14 is connected to the surface of the mounting plate 13, and a protrusion 15 is installed at the end of the threaded pin 14.

[0033] In the preferred embodiment, the projection 15 is fixedly connected to the housing 1 via the threaded pin 14 and the mounting plate 13 .

[0034] In the embodiment, the threaded pin 14 and the protrusion 15 are cleverly matched to allow the protective mechanism 3 to be easily assembled on the housing 1, which not only facilitates assembly and disassembly operations but also ensures the stability of the installation of the protective mechanism 3. This design significantly improves the practicality and maintenance convenience of the product.

[0035] Specifically, after the guard mechanism 3 is mounted on the top of the housing 1, the threaded pin 14 is rotated to drive the protrusion 15 toward the side wall of the housing 1 and squeeze it, thereby firmly fixing the guard mechanism 3 on the housing 1. To remove the guard mechanism 3, simply release the squeezing of the protrusion 15 on the housing 1 and rotate the threaded pin 14 in the opposite direction.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fully enclosed telescopic protective device for a scraper transfer machine, comprising a housing (1) and a protective mechanism (3) mounted on the top of the housing (1), characterized in that: A bracket (2) is installed at the bottom end of the housing (1); The protective mechanism (3) is composed of a first protective plate (31), a second protective plate (32) and a third protective plate (33); an outer wall of one side of the third protective plate (33) is connected to a support plate (4); a threaded rod (5) is installed on the inner wall of the support plate (4); an adjustment sleeve (6) is installed at the end of the threaded rod (5); a limit block (7) is installed at the end of the threaded rod (5); and an outer cover of the threaded rod (5) is provided with a protective shell (8).

2. A fully enclosed telescopic protective device for a scraper transfer machine according to claim 1, characterized in that: Two of the second protective plates (32) and the third protective plates (33) are symmetrically arranged about the central axis of the first protective plate (31), and two of the support plates (4) and the threaded rods (5) are also connected.

3. The fully enclosed telescopic protective device for a scraper transfer machine according to claim 1, characterized in that: The adjusting sleeve (6) and the threaded rod (5) are connected by threads, and the threads on the surfaces of the two threaded rods (5) are opposite to each other.

4. The fully enclosed telescopic protective device for a scraper transfer machine according to claim 1, characterized in that: A support block (9) is installed on the outer wall of the other side of the third protective plate (33), a screw rod (10) is sleeved between the two support blocks (9), and a locking nut (11) is connected to the surface of the screw rod (10).

5. The fully enclosed telescopic protective device for a scraper transfer machine according to claim 1, characterized in that: The outer walls of the first protective plate (31) and the second protective plate (32) are both provided with a sliding groove (16), the interior of the sliding groove (16) is equipped with a guide rod (18), the interior of the sliding groove (16) is also equipped with a slider (17) and is slidably connected to the surface of the guide rod (18), the slider (17) located on the outer wall of the first protective plate (31) is connected to the second protective plate (32), and the slider (17) located on the outer wall of the second protective plate (32) is connected to the third protective plate (33).

6. The fully enclosed telescopic protective device for a scraper transfer machine according to claim 1, characterized in that: A fixing block (12) is installed at the bottom end of the first protective plate (31), the outer side wall of the fixing block (12) is connected to a mounting plate (13), a threaded pin (14) is connected to the surface of the mounting plate (13), and a protrusion (15) is installed at the end of the threaded pin (14).

7. A fully enclosed telescopic protective device for a scraper transfer machine according to claim 6, characterized in that: The convex block (15) is fixedly connected to the housing (1) via a threaded pin (14) and a mounting plate (13).

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