Floating type chain tensioning device

Abstract

The utility model discloses a floating type chain tensioning device which comprises a chain wheel shell and a chain wheel arranged in the chain wheel shell. Two parallel slide ways are horizontally arranged in the chain wheel shell in front of and behind the chain wheel; the slide ways are parallel to the moving direction of the chain and are vertical to the chain wheel shaft; a chain wheel support is connected between the two sliding ways in a sliding mode, the chain wheel is hung on the lower portion of the chain wheel support through a horizontal mounted bearing connected with the upper end of a chain wheel shaft, compression springs are arranged on the front sliding way and the rear sliding way between the chain wheel support and the chain wheel shell in a sleeved mode, and the compression springs are arranged on the sliding way located on one side of the chain. A limiting switch is arranged on any side of the upper portion and the lower portion of the chain wheel support through a mounting plate, and a limiting block matched with the limiting switch is arranged on the chain wheel support on the side, facing the chain running direction, of the limiting switch. When the chain is clamped and the load is increased suddenly, the chain wheel part can compress the spring to move on the sliding rail, so that the limiting switch is touched to cause protection shutdown, and the chain is prevented from being damaged by pulling.

Description

Technical Field

[0001] The utility model relates to the field of chain conveying equipment, in particular to a floating chain tensioning device in a wire rope tube chain machine. Background Art

[0002] At present, chain conveying is more common in the field of conveying equipment. The sprockets in chain conveying equipment are usually set in an adjustable manner to prevent the chain from loosening after long-term use. The chain tensioning device of the existing wire rope tube chain machine mainly tensions the chain by pushing the sprocket shaft outside the sprocket shell. The disadvantage is that the tensioning device is not flexible and is generally a fixed tension adjustment (for example, by tightening the sprocket shaft through a thread). It is extremely inconvenient to adjust, especially when encountering a sudden increase in load, it cannot protect the chain well.

[0003] In view of the above problems, it is necessary to design a floating chain tensioner to overcome the above problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a floating chain tensioner, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A floating chain tensioner comprises a sprocket housing and a sprocket arranged in the sprocket housing; two parallel slideways are horizontally arranged in the sprocket housing in front and behind the sprocket, and the slideways are parallel to the movement direction of the chain and perpendicular to the sprocket shaft; a sprocket bracket is slidably connected between the two slideways, and the sprocket is suspended at the lower part of the sprocket bracket through a horizontal seat bearing connected to the upper end of the sprocket shaft, and compression springs are both provided on the front and rear slideways between the sprocket bracket and the sprocket housing, and the compression spring is arranged on the slideway located on one side of the chain; a limit switch is provided on either side of the front and rear of the sprocket bracket through a mounting plate, and a limit block cooperating with the limit switch is provided on the sprocket bracket located on the side of the limit switch facing the chain running direction.

[0007] Preferably, the front and rear parts of the sprocket bracket are connected to the slideway through a front slider and a rear slider respectively slidably mounted on the slideway.

[0008] Beneficial effects

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The chain tensioning device of the wire rope tube chain machine of the utility model is inside the sprocket housing. The entire sprocket component is placed on two slide rails and is tightened by a spring. When the chain is stuck and the load suddenly increases, the sprocket component will compress the spring and move on the slide rail, thereby touching the limit switch to cause a protective shutdown and avoid chain damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 yes Figure 1 A top-down view of the internal structure. DETAILED DESCRIPTION

[0013] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0014] like Figure 1-2 As shown, the floating chain tensioner of this embodiment includes a sprocket housing 1 and a sprocket 6 arranged in the sprocket housing; two parallel slideways 9 are horizontally arranged in the sprocket housing in front and behind the sprocket 6, and the slideway 9 is parallel to the movement direction of the chain 12 and perpendicular to the sprocket shaft; a sprocket bracket 7 is slidably connected between the two slideways, and the sprocket 6 is hoisted on the lower part of the sprocket bracket through a horizontal seat bearing 11 connected to the upper end of the sprocket shaft (there are two horizontal seat bearings in this embodiment), and a compression spring 2 is provided on the front and rear slideways between the sprocket bracket and the sprocket housing, and the compression spring 2 is provided on the slideway on one side of the chain; a limit switch 4 is provided on the upper side of the sprocket bracket 7 through a mounting plate 10, and a limit block 8 cooperating with the limit switch is provided on the sprocket bracket on the side of the limit switch facing the chain running direction; the front and rear parts of the sprocket bracket 7 are connected to the slideway through a front slider 3 and a rear slider 5 slidably mounted on the slideway 9.

[0015] When the chain tensioning device of the wire rope tube chain machine of this embodiment encounters a situation where the chain is stuck and the load suddenly increases, the sprocket component will compress the spring and move slowly on the slide rail to prevent the chain from being subjected to a large impact force; in this process, when the limit switch touches the limit block, the limit switch is disconnected, thereby disconnecting the input power of the entire wire rope tube chain machine and causing a protective shutdown to avoid chain damage.

[0016] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A floating chain tensioner, comprising a sprocket housing (1) and a sprocket (6) disposed in the sprocket housing; characterized in that: Two parallel slideways (9) are horizontally arranged in the sprocket housing at the front and rear of the sprocket (6), and the slideways (9) are parallel to the movement direction of the chain (12) and perpendicular to the sprocket shaft; a sprocket bracket (7) is slidably connected between the two slideways, and the sprocket (6) is hoisted on the lower part of the sprocket bracket through a horizontal seat bearing (11) connected to the upper end of the sprocket shaft, and compression springs (2) are both mounted on the front and rear slideways between the sprocket bracket and the sprocket housing, and the compression spring (2) is arranged on the slideway located on one side of the chain; a limit switch (4) is arranged on either side of the front and rear of the sprocket bracket (7) through a mounting plate (10), and a limit block (8) cooperating with the limit switch is arranged on the sprocket bracket located on the side where the limit switch faces the chain running direction.

2. The floating chain tensioner according to claim 1, characterized in that: The front and rear parts of the sprocket bracket (7) are connected to the slideway (9) through a front slider (3) and a rear slider (5) respectively slidably mounted on the slideway (9).

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