Scraper chain tension adjusting mechanism

Abstract

The utility model relates to the technical field of scraper equipment, in particular to a scraper chain tension adjusting mechanism which comprises two supporting plates, the two supporting plates are distributed left and right and do not make contact with each other, the ends, away from each other, of the two supporting plates are fixedly connected with anti-skid plates, and the middles of the ends, close to each other, of the two supporting plates are fixedly connected with fixing pipes. Connecting grooves are formed in the inner surfaces of the two fixing pipes, and the inner surfaces of the two connecting grooves are jointly in threaded connection with an adjusting rod. According to the chain tension adjusting mechanism for the scraper, the two adjusting devices are arranged in the chain tension adjusting mechanism, when the chain tension adjusting mechanism is used, adjusting heads in the adjusting devices can be rotated and adjusted according to the loosening condition of the chain of the scraper, so that jacking wheels in the adjusting mechanism move downwards and make contact with the chain, and meanwhile the chain is jacked up; and the advancing path of the chain is increased, so that the tension adjustment of the chain is realized, and the phenomena of chain jumping and chain sliding caused by the overlong chain can be avoided when the scraper conveyor is used.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper conveyor equipment, in particular to a chain tension adjusting mechanism for a scraper conveyor. Background Technique

[0002] A conveyor that uses a scraper chain to tow and transport bulk materials in a trough is called a scraper conveyor. The scraper conveyor can be used for horizontal transportation or inclined transportation. At the same time, the scraper conveyor is a transportation machine for a mining working face. Its function is to drive the scraper to scrape across the middle trough by means of chain drive, driving the ore on the middle trough forward to achieve the purpose of transportation. The chain scraper is arranged on the chain, and the chain serves as the driving mechanism of the scraper.

[0003] After the existing scraper conveyor is used for a long time, the chain in the equipment is prone to become longer and loose, and it is easy to have the situations of chain skipping and chain slipping during use, which will affect the normal use of the device. Therefore, we have developed a new chain tension adjusting mechanism for a scraper conveyor. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a chain tension adjusting mechanism for a scraper conveyor, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A chain tension adjusting mechanism for a scraper conveyor includes two support plates, which are distributed left and right and do not contact each other. Anti-slip plates are fixedly connected to the mutually remote ends of the two support plates. Fixed pipes are fixedly connected to the middle parts of the mutually close ends of the two support plates. Connecting grooves are formed on the inner surfaces of the two fixed pipes. An adjusting rod is commonly threadedly connected to the inner surfaces of the two connecting grooves. Adjusting devices are fixedly connected to the rear ends of the two support plates.

[0007] Preferably, the two adjusting devices do not contact the adjusting rod and the two fixed pipes.

[0008] Preferably, the adjusting device includes a fixing plate and a first fixing block. The fixing plate and the first fixing block are distributed left and right. A second fixing block is fixedly connected to the upper part of the end of the fixing plate close to the first fixing block. A threaded hole is formed in the upper end of the second fixing block. A lead screw is movably connected to the middle part of the upper end of the first fixing block. An adjusting head is fixedly connected to the upper end of the lead screw. A connecting rod is fixedly connected to the end of the first fixing block away from the fixing plate. A top support wheel is movably connected to the end of the connecting rod away from the first fixing block.

[0009] By adopting the above technical solution: the top support wheel in the adjusting device can support the chain of the scraper conveyor during use, so that the traveling path of the chain of the scraper conveyor can be increased, thereby realizing the adjustment of the chain tension and avoiding the occurrence of chain skipping and chain slipping due to chain loosening during the subsequent use of the scraper conveyor.

[0010] Preferably, the fixing plate is fixedly connected to the supporting plate, the first fixing block is located on the side of the fixing plate close to the adjusting rod, and one end of the first fixing block close to the fixing plate is in contact with the fixing plate.

[0011] By adopting the above technical solution: the first fixing block in the adjusting device is closely attached to the fixing plate, which can limit the first fixing block when it moves, preventing the first fixing block from moving during adjustment.

[0012] Preferably, the second fixing block is located above the first fixing block, the screw rod is threadedly connected to the threaded hole, and the adjusting head is located above the second fixing block.

[0013] By adopting the above technical solution: the adjusting head in the adjusting device is an inner hexagon structure adjusting head, which can not only avoid the adjusting device occupying too much internal space of the scraper conveyor, but also prevent the scraper conveyor from accidentally touching the adjusting device during operation, resulting in the rotation of the adjusting head, and can ensure the use safety of the adjusting device.

[0014] Preferably, the adjusting rod includes an adjusting middle twist, a forward threaded rod is fixedly connected to the left end of the adjusting middle twist, and a reverse threaded rod is fixedly connected to the right end of the adjusting middle twist.

[0015] By adopting the above technical solution: the two threaded rods with opposite structures provided in the adjusting rod can simultaneously adjust the two fixed pipes when the adjusting rod rotates, making the operation more convenient.

[0016] Preferably, the forward threaded rod and the reverse threaded rod are respectively threadedly connected to the two connecting grooves, and the adjusting middle twist is not in contact with the two fixed pipes.

[0017] By adopting the above technical solution: the adjusting middle twist provided in the adjusting rod has a cross-shaped adjusting structure, and four adjusting holes are provided in the cross-shaped structure, so that the adjusting rod can be more convenient to operate during the adjustment operation.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. In the present utility model, two adjusting devices are provided in the device. When the device is in use, it needs to be installed inside the scraper conveyor near the driving wheel. After the device is fixedly installed, according to the looseness of the scraper conveyor chain, an adjusting tool can be connected to the adjusting head in the adjusting device and rotated to adjust it, so that the top support wheel in the adjusting device moves downward and contacts the chain, and at the same time the chain is lifted, increasing the travel path of the chain, thereby realizing the adjustment of the chain tension and avoiding the phenomena of chain skipping and chain slipping caused by the overlong chain when the scraper conveyor is in use;

[0020] 2. In the present utility model, adjusting rods are commonly threadedly connected between two support plates in the device through fixed pipes. When fixedly installing the device, the adjusting rods can be rotated first to adjust the support distance between the two support plates, then the two adjusted support plates are placed inside the scraper conveyor, and finally the adjusting rods are adjusted subsequently, so that the two support plates move to both sides to realize the fixed installation of the device and the scraper conveyor. The fixing method of adjusting the support plates through the adjusting rods not only makes the installation and disassembly of the device very convenient, but also enables the device to adapt to devices of different sizes for practical use, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of a chain tension adjusting mechanism for a scraper conveyor of the present utility model;

[0022] Figure 2 is the overall structural implementation schematic diagram of a chain tension adjusting mechanism for a scraper conveyor of the present utility model;

[0023] Figure 3 is the overall structural schematic diagram of the adjusting device of a chain tension adjusting mechanism for a scraper conveyor of the present utility model;

[0024] Figure 4 is the overall structural schematic diagram of the adjusting rod of a chain tension adjusting mechanism for a scraper conveyor of the present utility model.

[0025] In the figure: 1, support plate; 2, anti-slip plate; 3, fixed pipe; 4, connection groove; 5, adjusting rod; 6, adjusting device; 61, fixing plate; 62, first fixing block; 63, second fixing block; 64, threaded hole; 65, lead screw; 66, adjusting head; 67, connecting rod; 68, top support wheel; 51, adjusting middle twist; 52, forward threaded rod; 53, reverse threaded rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present 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 operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0030] A chain tension adjusting mechanism for a scraper conveyor, comprising two support plates 1, which are distributed left and right and do not contact each other. Anti-slip plates 2 are fixedly connected to the ends of the two support plates 1 away from each other. Fixed pipes 3 are fixedly connected to the middle parts of the ends of the two support plates 1 close to each other. Connecting grooves 4 are provided on the inner surfaces of the two fixed pipes 3. An adjusting rod 5 is commonly threadedly connected to the inner surfaces of the two connecting grooves 4. Adjusting devices 6 are fixedly connected to the rear ends of the two support plates 1, and the two adjusting devices 6 do not contact the adjusting rod 5 and the two fixed pipes 3.

[0031] In this embodiment, the adjusting device 6 includes a fixing plate 61 and a first fixing block 62. The fixing plate 61 and the first fixing block 62 are distributed left and right. The upper part of the end of the fixing plate 61 close to the first fixing block 62 is fixedly connected with a second fixing block 63. A threaded hole 64 is provided at the upper end of the second fixing block 63. A lead screw 65 is movably connected to the middle part of the upper end of the first fixing block 62. An adjusting head 66 is fixedly connected to the upper end of the lead screw 65. A connecting rod 67 is fixedly connected to the end of the first fixing block 62 away from the fixing plate 61. A top support wheel 68 is movably connected to the end of the connecting rod 67 away from the first fixing block 62. The fixing plate 61 is fixedly connected to the support plate 1. The first fixing block 62 is located on the side of the fixing plate 61 close to the adjusting rod 5, and the end of the first fixing block 62 close to the fixing plate 61 is in contact with the fixing plate 61. The second fixing block 63 is located above the first fixing block 62. The lead screw 65 is threadedly connected to the threaded hole 64, and the adjusting head 66 is located above the second fixing block 63.

[0032] Through the above solution: After the device is fixedly installed, according to the loosening condition of the scraper conveyor chain, an adjusting tool can be used to connect with the adjusting head 66 in the adjusting device 6 and rotate it for adjustment, so that the top support wheel 68 in the adjusting device 6 moves downward and contacts the chain, and at the same time jacks up the chain, increasing the traveling path of the chain, thereby realizing the tension adjustment of the chain, and enabling the scraper conveyor to avoid the phenomena of chain skipping and chain slipping caused by an overly long chain during use.

[0033] In this embodiment, the adjusting rod 5 includes an adjusting middle twist 51. A forward threaded rod 52 is fixedly connected to the left end of the adjusting middle twist 51, and a reverse threaded rod 53 is fixedly connected to the right end of the adjusting middle twist 51. The forward threaded rod 52 and the reverse threaded rod 53 are respectively threadedly connected to the two connecting grooves 4, and the adjusting middle twist 51 does not contact either of the two fixed pipes 3.

[0034] Through the above solution: When the device is fixedly installed, the adjusting rod 5 can be rotated first to adjust the support distance between the two support plates 1, then the two adjusted support plates 1 are placed inside the scraper conveyor, and finally, the adjusting rod 5 is further adjusted to move the two support plates 1 to both sides, thereby realizing the fixed installation of the device on the scraper conveyor. And the fixing method of adjusting the support plate 1 through the adjusting rod 5 makes the installation and disassembly of the device very convenient.

[0035] It should be noted that the present utility model describes a scraper conveyor chain tension adjusting mechanism, which is designed to be convenient for installation and disassembly, adapt to different sizes of scraper conveyors, and effectively adjust the chain tension to prevent chain skipping and chain slipping phenomena. Specifically, the device includes two support plates 1, which are threadedly connected to the adjusting rod 5 through the fixed pipes 3. During installation, the user can first rotate the adjusting rod 5 to adjust the distance between the two support plates 1, then place the adjusted support plates 1 inside the scraper conveyor, and subsequently, by further adjusting the adjusting rod 5, the support plates 1 are moved to both sides to achieve firm installation on the scraper conveyor.

[0036] This way of adjusting the distance between the support plates 1 through the adjusting rod 5 not only simplifies the installation and disassembly process, but also ensures that the device can adapt to different sizes of scraper conveyors, thereby improving its practicality.

[0037] In addition, the device is also equipped with two adjusting devices 6. These devices are installed inside the scraper conveyor near the driving wheel after installation. When the chain tension needs to be adjusted, the user can connect an adjusting tool to the adjusting head 66 of the adjusting device 6 and rotate it to make the top support wheel 68 move downward until it contacts the chain and jacks it up. In this way, the traveling path of the chain is increased, thereby realizing effective adjustment of the chain tension and effectively preventing the phenomena of chain skipping and chain slipping that may occur during the operation of the scraper conveyor.

[0038] In summary, through its unique design, the chain tension adjusting mechanism of the scraper conveyor of the present utility model not only provides a convenient installation and disassembly method, but also ensures the applicability of the device to scraper conveyors of different sizes. Moreover, the chain tension is effectively adjusted through the adjusting device 6, significantly improving the operation stability and safety of the scraper conveyor.

[0039] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A chain tension adjustment mechanism for a scraper conveyor, comprising two support plates (1), characterized in that: The two support plates (1) are distributed on the left and right and do not contact each other. The ends of the two support plates (1) that are away from each other are fixedly connected to the anti-slip plate (2). The middle parts of the ends of the two support plates (1) that are close to each other are fixedly connected to the fixing tube (3). The inner surfaces of the two fixing tubes (3) are provided with connecting grooves (4). The inner surfaces of the two connecting grooves (4) are commonly threadedly connected to the adjusting rods (5). The rear ends of the two support plates (1) are fixedly connected to the adjusting device (6). The adjusting device (6) comprises a fixing plate (61) and a first fixing block (62), wherein the fixing plate (61) and the first fixing block (62) are arranged on the left and right sides, a second fixing block (63) is fixedly connected to an upper portion of one end of the fixing plate (61) close to the first fixing block (62), a threaded hole (64) is provided on an upper portion of the second fixing block (63), a screw rod (65) is movably connected to a middle portion of an upper end of the first fixing block (62), an adjusting head (66) is fixedly connected to an upper end of the screw rod (65), a connecting rod (67) is fixedly connected to an end of the first fixing block (62) away from the fixing plate (61), and a top support wheel (68) is movably connected to an end of the connecting rod (67) away from the first fixing block (62).

2. A scraper chain tension adjustment mechanism according to claim 1, characterized in that: The two adjusting devices (6) are not in contact with the adjusting rod (5) and the two fixing tubes (3).

3. The scraper chain tension adjustment mechanism according to claim 1, characterized in that: The fixing plate (61) is fixedly connected to the support plate (1); the first fixing block (62) is located on a side of the fixing plate (61) close to the adjustment rod (5); and one end of the first fixing block (62) close to the fixing plate (61) is in contact with the fixing plate (61).

4. The scraper chain tension adjustment mechanism according to claim 1, characterized in that: The second fixing block (63) is located on the upper part of the first fixing block (62), the screw rod (65) is threadedly connected to the threaded hole (64), and the adjusting head (66) is located on the upper part of the second fixing block (63).

5. The scraper chain tension adjustment mechanism according to claim 1, characterized in that: The adjusting rod (5) comprises an adjusting middle twist rod (51), the left end of the adjusting middle twist rod (51) is fixedly connected to a forward threaded rod (52), and the right end of the adjusting middle twist rod (51) is fixedly connected to a reverse threaded rod (53).

6. A scraper chain tension adjustment mechanism according to claim 5, characterized in that: The forward threaded rod (52) and the reverse threaded rod (53) are respectively threadedly connected to the two connection grooves (4), and the adjusting middle torque (51) is not in contact with the two fixed tubes (3).

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