Scraper nut maintenance fastening device

Abstract

The utility model discloses a scraper nut maintenance fastening device, which comprises a cleaning part and a fastening part, the cleaning part and the fastening part are respectively arranged at the end part of a wrench, the cleaning part comprises a cleaning gear ring, the diameter of the cleaning gear ring is not less than that of a nut, the cleaning gear ring comprises cleaning teeth, and the fastening part comprises a fastening sleeve. A fastening opening matched with the nut in shape is formed in the fastening sleeve; the cleaning gear ring is arranged, coal slime in a scraper nest is cleaned through the sawtooth edge of the cleaning gear ring, operation is safe and efficient, the cleaning gear ring is matched with a nut in size, the cleaning effect is good, and the risk that in traditional operation, a screwdriver, a pointed cone and other edge tools are used for cleaning coal slime to injure people is avoided; the labor intensity of coal slime cleaning workers in the scraper maintenance period is greatly reduced, the fastening sleeve and the fastening opening are arranged, after coal slime is loosened and cleaned, the fastening opening and the nut are buckled, the wrench is rotated to fasten the nut, then cleaning and fastening are continuously carried out, and the scraper nut maintenance efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining mechanical equipment, in particular to a scraper nut repair and fastening device. Background Art

[0002] In the prior art, when the conveyor and transfer machine of the coal mining face are being overhauled, inspecting and tightening the scraper nuts is an important daily maintenance task. With the improvement of the equipment of the coal mining face, the length that the face can reach gradually increases. The number of scraper nuts of the conveyor is large, and the daily maintenance workload is relatively heavy.

[0003] Usually before tightening the nut, the coal slime in the scraper hole needs to be processed in advance. Due to the long-term operation of the working face, the coal slime accumulated in the scraper hole is usually hard after being squeezed, which is difficult to deal with. If the coal slime is blocked, the nut cannot be tightened. The existing technology is to flush with a water pipe and then clean one by one with a screwdriver, which is time-consuming and labor-intensive, and has low efficiency. Utility Model Content

[0004] In view of the shortcomings of the prior art, a scraper nut inspection and tightening device is proposed, which solves the problem of difficulty in cleaning the coal slime accumulated around the scraper nut and inconvenience in tightening the nut in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model proposes the following technologies to achieve it:

[0006] A scraper nut maintenance and fastening device comprises a cleaning part and a fastening part, wherein the cleaning part and the fastening part are respectively arranged at the ends of a wrench, the cleaning part comprises a cleaning tooth ring, the diameter of the cleaning tooth ring is not less than the diameter of the nut, the cleaning tooth ring comprises cleaning teeth, and the fastening part comprises a fastening sleeve, wherein the fastening sleeve is provided with a fastening opening matching the shape of the nut.

[0007] Furthermore, the cleaning part also includes a cleaning sleeve installed on the wrench, an opening is arranged on a side of the cleaning sleeve away from the wrench, and the cleaning toothed ring is fixedly connected to the open end of the cleaning sleeve.

[0008] Furthermore, the cleaning tooth ring is coaxially arranged with the cleaning sleeve, and a plurality of cleaning teeth are evenly arranged along the circumference of the cleaning sleeve to form a cleaning tooth ring, and the bottom ends of the cleaning teeth are V-shaped.

[0009] Furthermore, a space is left between two adjacent cleaning teeth to form a chip removal opening, and the width of the chip removal opening increases in a direction away from the center of the cleaning tooth ring.

[0010] Furthermore, the fastening sleeve and the cleaning toothed ring are arranged relative to the wrench, and one end of the fastening sleeve where the fastening opening is arranged is tapered, so that the wall thickness of the fastening sleeve gradually decreases in the direction approaching the fastening opening.

[0011] Furthermore, an extension rod is provided on the outer sleeve of the wrench, and the extension rod is slidably arranged along the axial direction of the wrench, and a positioning component is arranged between the extension rod and the wrench.

[0012] Furthermore, the positioning assembly includes a positioning pin and a limiting groove, the limiting groove is arranged on the surface of the wrench, and the positioning pin is fixedly connected to the inner wall of the extension rod and is slidably connected to the limiting groove.

[0013] Furthermore, the limiting groove includes a sliding groove arranged along the extending direction of the wrench, and a rotating groove arranged along the circumference of the wrench, and the rotating groove intersects with the end of the sliding groove to be connected.

[0014] Furthermore, a plurality of the rotating grooves are arranged at intervals along the extending direction of the wrench, the positioning pin can rotate 90 degrees along the rotating groove, and the sliding groove and the fastening sleeve are arranged on the same side of the wrench.

[0015] Compared with the prior art, the comprehensive effects brought by the utility model include:

[0016] The present application provides a cleaning tooth ring, and uses the serrated edge of the cleaning tooth ring to clean the coal slime in the scraper nest. The operation is safe and efficient. The size of the cleaning tooth ring matches the nut, and the cleaning effect is good. The risk of injury to people when using sharp tools such as screwdrivers and pointed cones to clean the coal slime in traditional operations is avoided, and the labor intensity of coal slime cleaning workers during scraper maintenance is greatly reduced. A fastening sleeve and a fastening port are provided. After the loose coal slime is cleaned, the fastening port is buckled with the nut, and the wrench is turned to tighten the nut, thereby realizing continuous cleaning and tightening, and further improving the efficiency of scraper nut maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the overall structure of the embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the cleaning part of the embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the cleaning gear ring structure of an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the cleaning gear ring structure of another embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the fastening port structure of an embodiment of the utility model;

[0022] Figure 6 This is a top view of the wrench and the movable slot structure of the embodiment of the utility model;

[0023] Figure 7The utility model is a schematic diagram of the cross-sectional structure of the wrench and the extension rod connection embodiment of the present invention.

[0024] Legend: 1. Wrench; 2. Cleaning gear ring; 3. Cleaning teeth; 4. Fastening sleeve; 5. Fastening mouth; 6. Cleaning sleeve; 7. Chip removal surface; 8. Extension rod; 9. Positioning pin; 10. Sliding groove; 11. Rotating groove. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the utility model.

[0026] In this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "top", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0027] like Figures 1 to 7 As shown, a scraper nut maintenance and fastening device includes a cleaning part and a fastening part, wherein the cleaning part and the fastening part are respectively arranged at the ends of a wrench 1, the cleaning part includes a cleaning tooth ring 2, the diameter of the cleaning tooth ring 2 is not less than the diameter of the nut, the cleaning tooth ring 2 includes cleaning teeth 3, and the fastening part includes a fastening sleeve 4, and the fastening sleeve 4 is provided with a fastening opening 5 matching the shape of the nut.

[0028] The present application provides a cleaning tooth ring 2, and utilizes the serrated edge of the cleaning tooth ring 2 to clean the coal slime in the scraper cavity. The operation is safe and efficient, and the size of the cleaning tooth ring 2 matches the nut, so the cleaning effect is good. Not only can the risk of injury to people when using sharp tools such as screwdrivers and pointed cones to clean coal slime in traditional operations be avoided, but the labor intensity of coal slime cleaning workers during scraper maintenance can also be greatly reduced, eliminating the safety risks of traditional operations and improving work efficiency. In addition, a fastening sleeve 4 and a fastening port 5 are provided. After the loose coal slime is cleaned, the fastening port 5 is buckled with the nut, and the wrench 1 is turned to tighten the nut, thereby realizing continuous cleaning and tightening, and further improving the efficiency of scraper nut maintenance.

[0029] The above structure is provided in the present application, which is convenient to carry, easy to use, highly practical and flexible, and can effectively improve the maintenance efficiency of the staff while improving safety.

[0030] In the scraper nut maintenance and tightening device of this embodiment, the cleaning part also includes a cleaning sleeve 6 installed on the wrench, and an opening is set on the side of the cleaning sleeve 6 away from the wrench 1, and the cleaning gear ring 2 is fixedly connected to the open end of the cleaning sleeve 6.

[0031] The above arrangement indirectly increases the depth of the cleaning teeth 3, so that the cleaning teeth 3 can penetrate deeply into the scraper cavity for cleaning, and the cleaning depth can be adjusted to adapt to scraper cavity of different depths, further improving the practicality and cleaning effect.

[0032] In the scraper nut maintenance and fastening device of this embodiment, the cleaning tooth ring 2 is coaxially arranged with the cleaning sleeve 6, and a plurality of cleaning teeth 3 are evenly arranged along the circumference of the cleaning sleeve 6 to form a cleaning tooth ring, and the bottom end of the cleaning tooth 3 is V-shaped.

[0033] Specifically, a plurality of cleaning teeth 3 distributed circumferentially are provided. When cleaning, the wrench 1 only needs to be rotated at a small angle to drive the cleaning teeth 3 to evenly scrape and clean the area around the nut. The cleaning teeth 3 are V-shaped, which is convenient for inserting into the accumulated coal slime to break and disperse the coal slime.

[0034] Specifically, Figure 2 and Figure 3 As shown, the cleaning teeth 3 are in the shape of triangular plates, and chip removal surfaces 7 are arranged on the left and right sides of the cleaning teeth 3. After the cleaning tooth ring 2 is inserted into the scraper nest, a chip removal opening is formed between two adjacent chip removal surfaces 7 and the side surfaces of the nut. As the cleaning sleeve 6 rotates, the chip removal surfaces 7 push the coal slime in the chip removal opening to move and separate from the nut for cleaning.

[0035] Preferably, the width of the chip removal opening increases in a direction away from the center of the cleaning gear ring 2. Figure 4 As shown, the chip removal surface 7 is inclined, and the cleaning teeth 3 are in the shape of a quadrangular pyramid. The diameter of the chip removal opening gradually increases, and the conical cleaning teeth 3 can be better inserted into the coal slime. At the same time, when the cleaning teeth 3 rotate, the coal slime between the cleaning teeth 3 can be better discharged along the inclined chip removal surface 7, thereby achieving a better cleaning effect and improving the cleaning efficiency.

[0036] In the scraper nut maintenance and tightening device of this embodiment, the tightening sleeve 4 and the cleaning gear ring 2 are arranged relative to the wrench 1, and one end of the tightening sleeve 4 where the tightening opening 5 is arranged is tapered, so that the wall thickness of the tightening sleeve 4 gradually decreases in the direction approaching the tightening opening 5.

[0037] The relatively arranged structures can avoid interference between the two when rotating and cleaning the gear ring 2 or when the fastening sleeve 4 is tightened; a conical tightening sleeve 4 is provided, and when the tightening sleeve 4 is buckled onto the outside of the nut, the fastening opening 5 matches the shape of the nut, so that the coal slime remaining on the outside of the nut can move outward along the inclined surface, so that the fastening opening 5 and the nut fit more closely, making it easier to rotate the wrench 1 to tighten the nut, thereby improving the maintenance and tightening efficiency.

[0038] In the scraper nut maintenance and tightening device of this embodiment, an extension rod 8 is provided on the outer periphery of the wrench 1 , and the extension rod 8 is slidably arranged along the axial direction of the wrench 1 , and a positioning component is arranged between the extension rod 8 and the wrench 1 .

[0039] A sleeved and slidable structure is provided to adjust the extension length of the wrench 1, thereby realizing a retractable function, and facilitating adjustment of the overall length of the wrench 1 and the extension rod 8 according to on-site conditions, so as to make cleaning and tightening operations more convenient and safer, thereby improving the practicality of the present application.

[0040] In the scraper nut inspection and tightening device of this embodiment, the positioning assembly includes a positioning pin 9 and a limiting groove. The limiting groove is opened on the surface of the wrench 1. The positioning pin 9 is fixedly connected to the inner wall of the extension rod 8 and is slidably connected to the limiting groove.

[0041] The positioning pin 9 slides in the limiting groove to change the extension length of the wrench 1 in the extension rod 8, and the length is fixed to avoid affecting normal use.

[0042] In the scraper nut maintenance and tightening device of this embodiment, the limiting groove includes a sliding groove 10 arranged along the extension direction of the wrench 1, and a rotating groove 11 arranged along the circumference of the wrench 1, and the rotating groove 11 intersects with the end of the sliding groove 10 to be connected.

[0043] The locating pin 9 slides in the sliding groove 10 to adjust the length. After the appropriate length is determined, the wrench 1 is fixed and the extension rod 8 is rotated at the same time to make the locating pin 9 move from the sliding groove 10 to the rotating groove 11. The axial position of the locating pin 9, i.e., the extension plate 8, is limited by the circumferentially arranged rotating groove 11. Preferably, the locating pin 9 is made of rubber material to increase the friction with the limiting groove to prevent the locating pin 9 from sliding freely.

[0044] In the scraper nut maintenance and tightening device of this embodiment, a plurality of rotating grooves 11 are arranged at intervals along the extension direction of the wrench 1 , the positioning pin 9 can rotate 90 degrees along the rotating groove 11 , and the sliding groove 10 and the tightening sleeve 4 are arranged on the same side of the wrench 1 .

[0045] Through the above arrangement, after the length is determined, the extension rod 8 is rotated to drive the positioning pin 9 to rotate 90 degrees. When the wrench 1 is rotated to clean the gear ring 2 or the fastening sleeve 4, the extension direction of the positioning pin 9 is tangent to the rotation direction, thereby further preventing the positioning pin 9 from moving and ensuring the positioning stability between the extension rod 8 and the wrench 1.

[0046] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "rotation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0047] Although the embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scraper nut maintenance and fastening device, characterized in that: It includes a cleaning part and a fastening part, which are respectively arranged at the ends of the wrench. The cleaning part includes a cleaning toothed ring, the diameter of the cleaning toothed ring is not less than the diameter of the nut, and the cleaning toothed ring includes cleaning teeth. The fastening part includes a fastening sleeve, and the fastening sleeve is provided with a fastening opening matching the shape of the nut.

2. A scraper nut repair and fastening device according to claim 1, characterized in that: The cleaning part also includes a cleaning sleeve installed on the wrench. An opening is arranged on a side of the cleaning sleeve away from the wrench. The cleaning toothed ring is fixedly connected to the open end of the cleaning sleeve.

3. A scraper nut repair and fastening device according to claim 2, characterized in that: The cleaning tooth ring is coaxially arranged with the cleaning sleeve, and a plurality of cleaning teeth are evenly arranged along the circumference of the cleaning sleeve to form a cleaning tooth ring, and the bottom ends of the cleaning teeth are V-shaped.

4. A scraper nut repair and fastening device according to claim 3, characterized in that: A space is left between two adjacent cleaning teeth to form a chip removal opening, and the width of the chip removal opening increases in a direction away from the center of the cleaning tooth ring.

5. A scraper nut repair and fastening device according to claim 1, characterized in that: The fastening sleeve and the cleaning toothed ring are arranged relative to the wrench, and one end of the fastening sleeve where the fastening opening is arranged is tapered, so that the wall thickness of the fastening sleeve gradually decreases in the direction approaching the fastening opening.

6. A scraper nut repair and fastening device according to claim 1, characterized in that: An extension rod is provided on the outer sleeve of the wrench. The extension rod is slidably arranged along the axial direction of the wrench. A positioning component is arranged between the extension rod and the wrench.

7. A scraper nut repair and fastening device according to claim 6, characterized in that: The positioning assembly comprises a positioning pin and a limiting groove, wherein the limiting groove is arranged on the surface of the wrench, and the positioning pin is fixedly connected to the inner wall of the extension rod and is slidably connected to the limiting groove.

8. A scraper nut repair and fastening device according to claim 7, characterized in that: The limiting groove comprises a sliding groove arranged along the extending direction of the wrench, and a rotating groove arranged along the circumference of the wrench, and the rotating groove intersects with the end of the sliding groove to be connected.

9. A scraper nut repair and fastening device according to claim 8, characterized in that: A plurality of rotating grooves are arranged at intervals along the extending direction of the wrench, the positioning pin can rotate 90 degrees along the rotating groove, and the sliding groove and the fastening sleeve are arranged on the same side of the wrench.

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