Tensioning mechanism of scraper conveyor chain

Abstract

The utility model provides a tensioning mechanism of a scraper conveyor chain, and relates to the technical field of chain tightness adjustment, the tensioning mechanism comprises a mounting seat, the top of the mounting seat is detachably connected with two mounting plates, the two mounting plates are symmetrically arranged, a hydraulic cylinder is arranged between the two mounting plates, and the fixed end of the hydraulic cylinder is fixedly arranged on the mounting seat; the telescopic end of the hydraulic cylinder is detachably connected with a movable seat, the two installation plates are both connected with the movable seat in a sliding mode, and an adjusting chain wheel is rotatably installed on the movable seat, the movable seat is driven by the hydraulic cylinder to drive the adjusting chain wheel to move, and adjustment of the tightness degree of the chain of the scraper conveyor can be rapidly and conveniently achieved. The convenience of chain tightness adjustment is effectively improved, the adjustment time is saved, the conveying efficiency of a coal mine is guaranteed, labor is saved, the two installation plates are detachably connected with the top of the installation base, the movable base is detachably connected with the telescopic end of the hydraulic cylinder, the movable base and the adjusting chain wheels of different sizes are convenient to install and replace, and the practicability is high. The practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of chain tightness adjustment, and in particular to a tensioning mechanism for a scraper conveyor chain. Background Art

[0002] Scraper conveyor is a device that uses scraper chain to transport bulk materials in the trough. In the current coal mining face, the role of the scraper conveyor is not only to transport coal and materials, but also to serve as the running track of the coal mining machine. Therefore, it has become an indispensable main equipment in the modern coal mining process. If the scraper conveyor can maintain continuous operation, production can proceed normally. Otherwise, the entire coal mining face will be shut down, causing the entire production to be interrupted.

[0003] At present, the more prominent problem in the use of scraper conveyors is that the chain will become loose after the scraper conveyors have been used for a period of time. When the chain is too loose, it will cause the chain to jump and slip, and the transportation capacity of the scraper conveyor will decrease. The traditional method of adjusting the tightness of the scraper conveyor chain is to open the cover of the chain adjustment device to expose the chain and the adjusting bolt, and then use a wrench or pliers to rotate the adjusting bolt to adjust the chain assembly to the appropriate tightness. After the adjustment is completed, tighten the adjusting bolt to ensure that the chain will not automatically loosen or be too tight.

[0004] However, the traditional adjustment method takes a long time to adjust, affects the coal mine transportation efficiency, and is cumbersome to operate and quite labor-intensive. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a tensioning mechanism for a scraper conveyor chain, which can solve the technical problems raised by the background technology.

[0006] An embodiment of the present application provides a tensioning mechanism for a scraper conveyor chain, comprising a mounting seat, the top of which is detachably connected to two mounting plates, the two mounting plates being symmetrically arranged, a hydraulic cylinder being arranged between the two mounting plates, the fixed end of the hydraulic cylinder being fixed on the mounting seat, the telescopic end of the hydraulic cylinder being detachably connected to a movable seat, the two mounting plates being slidably connected to the movable seat, and an adjusting sprocket being rotatably installed on the movable seat.

[0007] Furthermore, a group of threaded holes are provided on the mounting plate, and the threaded holes extend into the mounting seat, and bolts are threadedly connected in the threaded holes.

[0008] Furthermore, a first limit member and a second limit member are symmetrically fixed to the bottom of the movable seat, the first limit member and the second limit member are symmetrically arranged, a clamping groove is formed between the first limit member and the second limit member, and a clamping member is fixed to the end of the telescopic rod of the hydraulic cylinder, and the clamping member is movably clamped to the clamping groove.

[0009] Furthermore, guide rods are fixedly provided on both sides of the movable seat, guide grooves are provided on the inner sides of the two mounting plates, the guide rods are adapted to the guide grooves, and the guide rods are slidably connected to the corresponding guide grooves.

[0010] Furthermore, the movable seat is provided with a mounting groove, the adjusting sprocket is installed in the mounting groove, and the gear tooth portion of the sprocket is placed outside the mounting groove.

[0011] Furthermore, a connecting plate is fixedly provided on one side of the mounting seat, and a plurality of fixing holes are evenly arranged on the connecting plate.

[0012] Beneficial effects of the utility model:

[0013] The utility model discloses driving the movable seat to move the adjusting sprocket by the hydraulic cylinder, so that the tightness of the scraper conveyor chain can be quickly and conveniently achieved, which effectively improves the convenience of adjusting the tightness of the chain, saves adjustment time, ensures the transportation efficiency of the coal mine, is simple to operate, saves labor and effort, and the two mounting plates are detachably connected to the top of the mounting seat, and the movable seat is also detachably connected to the telescopic end of the hydraulic cylinder, which is convenient for installing and replacing the movable seat and adjusting sprockets of different sizes, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the structure of some embodiments of the present application;

[0016] Figure 2 It is a cross-sectional view of some embodiments of the present application;

[0017] Figure 3 A front view of a movable seat in some embodiments of the present application;

[0018] Figure 4 This is a schematic diagram of the decomposition structure in some embodiments of the present application;

[0019] The reference numerals are:

[0020] 1. Mounting seat; 11. Connecting plate; 12. Fixing hole; 2. Mounting plate; 21. Threaded hole; 22. Guide groove; 3. Hydraulic cylinder; 4. Movable seat; 41. First position limiter; 42. Second position limiter; 43. Guide rod; 44. Mounting groove; 5. Adjusting sprocket; 6. Bolt; 7. Snap-in groove; 8. Snap-in member. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Specific embodiment:

[0028] like Figure 1-4 As shown, a tensioning mechanism for a scraper conveyor chain comprises a mounting seat 1, the top of which is detachably connected to two mounting plates 2, the two mounting plates 2 are symmetrically arranged, a hydraulic cylinder 3 is arranged between the two mounting plates 2, the fixed end of the hydraulic cylinder 3 is fixedly arranged on the mounting seat 1, the telescopic end of the hydraulic cylinder 3 is detachably connected to a movable seat 4, the two mounting plates 2 are both slidably connected to the movable seat 4, an adjusting sprocket 5 is rotatably installed on the movable seat 4, and when in use, the device is installed on the scraper conveyor so that the entire device is located below the scraper conveyor chain and is The adjusting sprocket 5 is meshed with the chain of the scraper conveyor, and the movable seat 4 is driven by the hydraulic cylinder 3 to drive the adjusting sprocket 5 to move, so the tightness of the scraper conveyor chain can be adjusted quickly and conveniently, which effectively improves the convenience of adjusting the tightness of the chain, saves adjustment time, ensures the transportation efficiency of the coal mine, is simple to operate, saves labor and effort, and the two mounting plates 2 are detachably connected to the top of the mounting seat 1, and the movable seat 4 is also detachably connected to the telescopic end of the hydraulic cylinder 3, which is convenient for installing or replacing the movable seat 4 and adjusting sprockets 5 of different sizes, thereby improving the practicability of the device.

[0029] like Figure 1 and Figure 4 As shown, a group of threaded holes 21 are provided on the mounting plate 2, and the threaded holes 21 extend into the mounting seat 1. Bolts 6 are threadedly connected to the threaded holes 21. The mounting plate 2 and the mounting seat 1 are fixed by the cooperation of the bolts 6 and the threaded holes 21, so that the mounting plate 2 and the mounting seat 1 can be disassembled and installed.

[0030] like Figure 2-4 As shown, a first limiting member 41 and a second limiting member 42 are symmetrically fixed to the bottom of the movable seat 4, and the first limiting member 41 and the second limiting member 42 are symmetrically arranged, and a clamping groove 7 is formed between the first limiting member 41 and the second limiting member 42. A clamping member 8 is fixed to the end of the telescopic rod of the hydraulic cylinder 3, and the clamping member 8 is movably clamped with the clamping groove 7 to facilitate the disassembly and installation of the movable seat 4 and the mounting seat 1.

[0031] like Figure 2-4As shown, guide rods 43 are fixed on both sides of the movable seat 4, and guide grooves 22 are provided on the inner sides of the two mounting plates 2. The guide rods 43 are adapted to the guide grooves 22, and the guide rods 43 are slidably connected with the corresponding guide grooves 22. The hydraulic cylinder 3 drives the movable seat 4 to drive the guide rods 43 to move along the guide grooves 22, so that the movable seat 4 moves stably.

[0032] like Figure 2 As shown, a mounting groove 44 is provided on the movable seat 4, and the adjusting sprocket 5 is installed in the mounting groove 44 to reduce the volume of the device. The tooth part of the sprocket is placed outside the mounting groove 44 so that the tooth of the sprocket can mesh with the chain of the scraper conveyor.

[0033] like Figure 1 , Figure 2 and Figure 4 As shown, a connecting plate 11 is fixedly provided on one side of the mounting seat 1, and a plurality of fixing holes 12 are evenly arranged on the connecting plate 11. The entire device is fixed to the scraper conveyor through the connecting plate 11 of the mounting seat 1. Specifically, the connecting plate 11 can be welded to the scraper conveyor, or the bolts 6 can be passed through the fixing holes 12 and the connecting plate 11 can be fixed to the scraper conveyor with nuts.

[0034] Working principle:

[0035] The entire device is fixed on the scraper conveyor through the connecting plate 11 of the mounting seat 1, so that the entire device is located below the scraper conveyor chain, and the adjusting sprocket 5 is meshed with the scraper conveyor chain. The movable seat 4 is driven by the hydraulic cylinder 3 to drive the guide rod 43 to move along the guide groove 22, thereby driving the adjusting sprocket 5 to move stably, which can quickly and conveniently adjust the tightness of the scraper conveyor chain, effectively improving the convenience of adjusting the tightness of the chain. When the adjusting sprocket 5 of a suitable size needs to be replaced according to actual needs, the hydraulic The cylinder 3 drives the movable seat 4 to drive the adjusting sprocket 5 to move so that the adjusting sprocket 5 is separated from the chain of the plate conveyor, and then the bolt 6 is tightened to separate the bolt 6 from the bolt 6 hole, and the mounting plate 2 is removed, and then the movable seat 4 is moved outward to separate the snap-in groove 7 from the snap-in piece 8, and the movable seat 4 and the adjusting sprocket 5 are removed, and then the movable seat 4 with the adjusting sprocket 5 of appropriate size is connected with the snap-in piece 8 through the snap-in groove 7, and at the same time, the guide rod 43 is inserted into the guide groove 22, and then the mounting plate 2 and the mounting seat 1 are fixed with the bolt 6.

[0036] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tensioning mechanism for a scraper conveyor chain, characterized in that: It includes a mounting seat, the top of which is detachably connected to two mounting plates, the two mounting plates are symmetrically arranged, a hydraulic cylinder is provided between the two mounting plates, the fixed end of the hydraulic cylinder is fixed on the mounting seat, the telescopic end of the hydraulic cylinder is detachably connected to a movable seat, the two mounting plates are both slidably connected to the movable seat, and an adjusting sprocket is rotatably installed on the movable seat.

2. A tensioning mechanism for a scraper conveyor chain according to claim 1, characterized in that: The mounting plate is provided with a group of threaded holes, the threaded holes extend into the mounting seat, and bolts are threadedly connected in the threaded holes.

3. The tensioning mechanism of a scraper conveyor chain according to claim 1, characterized in that: A first limiting member and a second limiting member are symmetrically fixed to the bottom of the movable seat, the first limiting member and the second limiting member are symmetrically arranged, a clamping groove is formed between the first limiting member and the second limiting member, a clamping member is fixed to the end of the telescopic rod of the hydraulic cylinder, and the clamping member is movably clamped in the clamping groove.

4. The tensioning mechanism of a scraper conveyor chain according to claim 1, characterized in that: Guide rods are fixedly arranged on both sides of the movable seat, and guide grooves are arranged on the inner sides of the two mounting plates. The guide rods are matched with the guide grooves, and the guide rods are slidably connected with the corresponding guide grooves.

5. The tensioning mechanism of a scraper conveyor chain according to claim 1, characterized in that: The movable seat is provided with a mounting groove, the adjusting sprocket is installed in the mounting groove, and the gear part of the sprocket is placed outside the mounting groove.

6. The tensioning mechanism of a scraper conveyor chain according to claim 1, characterized in that: A connecting plate is fixedly provided on one side of the mounting seat, and a plurality of fixing holes are evenly arranged on the connecting plate.

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