Auxiliary device for cutting off underground iron chain

Abstract

The underground iron chain cutting auxiliary device comprises a chain cutting table, a fixed chain hook and a movable chain hook, the chain cutting table is a rectangular table, a T-shaped groove is formed in the upper surface of the chain cutting table in the length direction, scales are arranged on the long edge side of a notch of the T-shaped groove, a baffle is arranged at one end of the chain cutting table, a through hole is formed in the middle of the baffle, and the movable chain hook is arranged in the through hole. The fixed chain hook comprises a screw rod and a first fixing nut, one end of the screw rod is provided with an external thread, the other end of the screw rod is bent upwards to form a hook shape, the threaded end of the screw rod penetrates through the through hole and is fixed to the baffle through the first fixing nut, the movable chain hook comprises a sliding block, a protruding rod, a limiting nut and a second fixing nut, and the sliding block is arranged in the T-shaped groove in a sliding mode. The protruding rod is fixedly arranged on the upper surface of the sliding block, threads are arranged on the outer surface of the protruding rod, and the limiting nut and the second fixing nut are screwed to the protruding rod. The device is easy and convenient to operate, convenient to maintain and suitable for underground popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground auxiliary operations, in particular to an underground iron chain cutting auxiliary device. Background Art

[0002] Scrapers are widely used in daily mining and transportation work in coal mines. Scrapers used in coal mines underground adopt steel troughs and open types, which are convenient for the coal mined by the coal mining machine to fall onto the scraper conveyor. The existing scrapers used in coal mines underground mainly include scraper body, scraper motor, scraper chain and transmission gear; when the scraper is conveying, the scraper chain needs to bear the weight of the transported coal. Long-term use will cause the chain to loosen, and the scraper chain cannot be used normally, affecting the transmission efficiency of the scraper chain. According to the on-site conditions, when the chain needs to be tightened, iron chains of different sizes are required. At present, there is no iron chain cutting device specially designed for underground, and the length of the iron chain sawed by the existing device does not meet the demand. Chinese utility model CN203917798U discloses an automatic chain cutting device, including a base plate and a guide part fixed on the base plate, a sprocket, a scale plate, a sensor, a counter, a cutting part and a motor; the guide part is used to guide the chain to the sprocket, the scale plate is coaxial with the sprocket, one end of the sensor is connected to the scale plate, and the other end is connected to the counter; the counter and the sprocket are connected to the motor; the cutting part is located below the sprocket and connected to the counter. The above device needs to lead the chain to the sprocket, calculate the chain link by the counter to control the length of the cut chain, and use a cutter to cut the device. For the underground working environment, the structure is complicated and maintenance is inconvenient, and it is not suitable for underground use. Summary of the invention

[0003] The technical problem solved by the utility model is that the existing chain cutting device has a complex structure and is inconvenient to maintain in an underground working environment.

[0004] The utility model provides an underground iron chain cutting auxiliary device, comprising a chain cutting platform, a fixed chain hook and a movable chain hook, the chain cutting platform is a rectangular platform, a T-shaped groove is arranged on the upper surface of the chain cutting platform along the length direction, the groove bottom width of the T-shaped groove is greater than the groove width, one end of the T-shaped groove is sealed to form a limit, and the other end is open, and a scale is arranged on the long side of the notch of the T-shaped groove, one end of the chain cutting platform is provided with a baffle, the baffle is close to the sealed end of the T-shaped groove, and a through hole is arranged in the middle of the baffle, the fixed chain hook comprises a screw rod and a first fixing nut, one end of the screw rod is provided with an external thread, and the other end is bent upward into a hook shape, the screw thread end passes through the through hole and is fixed on the baffle plate by the first fixing nut, and the screw hook end is aligned with the scale origin, the movable chain hook comprises a slider, a convex rod, a limiting nut and a second fixing nut, the slider is slidably arranged in the T-shaped groove, the convex rod is fixedly arranged on the upper surface of the slider, the outer surface of the convex rod is provided with a thread, the limiting nut and the second fixing nut are screwed on the convex rod, the limiting nut is used to fix the convex rod at a specific position, and the second fixing nut is used to fix the iron chain.

[0005] Furthermore, the T-shaped groove is arranged in the middle of the chain cutting table.

[0006] Furthermore, pedals are provided on both sides of the chain cutting platform, the pedals are detachably connected to the chain cutting platform, and the pedals are arranged close to the baffle.

[0007] Furthermore, the slider and the protruding rod are integrally formed, the slider width is smaller than the T-groove bottom width and larger than the groove width, the protruding rod width is smaller than the groove width, and the protruding rod length is larger than the T-groove depth, so that the slider can be inserted from the T-groove opening end.

[0008] Furthermore, the scale is a scale sticker.

[0009] The utility model has the following beneficial effects: the utility model underground iron chain cutting auxiliary device is provided with a T-shaped groove as a positioning scale, and a fixed chain hook is provided at one end of the scale, and a movable chain hook is provided in the groove. When sawing the iron chain, the movable chain hook is moved to a desired position, and fixed by a limit nut, one end of the iron chain is fixed on the fixed chain hook, and the other end is fixed on the movable chain hook, and the sawing operation begins. The utility model is easy to operate and maintain, and is suitable for underground promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 , Schematic diagram of the underground iron chain cutting auxiliary device of the utility model. DETAILED DESCRIPTION

[0011] In order to clearly illustrate the technical features of this solution, the solution is described below through specific implementation methods and in combination with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the utility model.

[0012] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply 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 understood as a limitation on the present invention.

[0013] like Figure 1 As shown, an underground iron chain cutting auxiliary device comprises a chain cutting platform 1, a fixed chain hook and a movable chain hook.

[0014] The chain cutting platform 1 is a rectangular platform, and a T-shaped groove 2 is provided on the upper surface of the chain cutting platform 1 along the length direction, and the T-shaped groove 2 is arranged in the middle of the chain cutting platform. The bottom width of the T-shaped groove 2 is greater than the width of the slot, one end of the T-shaped groove 2 is sealed to form a limit, and the other end is open, and a scale 3 is provided on the long side of the slot of the T-shaped groove 2, and the scale is a scale sticker. A baffle 4 is provided at one end of the chain cutting platform 1, and the baffle 4 is close to the sealed end of the T-shaped groove 2. A through hole is provided in the middle of the baffle 4. Pedals 10 are provided on both sides of the chain cutting platform 1 to prevent the device from sliding when sawing iron chains. The foot pedal 10 is detachably connected to the chain cutting platform 1, and the foot pedal 10 is arranged close to the baffle 4.

[0015] The fixed chain hook includes a screw rod 5 and a first fixing nut 6. One end of the screw rod 5 is provided with an external thread, and the other end is bent upward into a hook shape. The threaded end of the screw rod 5 passes through the through hole and is fixed to the baffle 4 through the first fixing nut 6. The hook-shaped end of the screw rod 5 is aligned with the origin of the scale 3.

[0016] The movable chain hook comprises a slider, a protruding rod 7, a limiting nut 8 and a second fixing nut 9. The slider is slidably arranged in the T-shaped groove 2. The width of the slider is smaller than the bottom width of the T-shaped groove 2 and larger than the width of the notch. The width of the protruding rod 7 is smaller than the width of the notch. The length of the protruding rod 7 is larger than the depth of the T-shaped groove 2, so that the slider can be put in from the opening end of the T-shaped groove 2. The slider and the protruding rod 7 are integrally formed. The protruding rod 7 is fixedly arranged on the upper surface of the slider. The outer surface of the protruding rod 7 is provided with a thread. The limiting nut 8 and the second fixing nut 9 are screwed on the protruding rod. The limiting nut 8 is used to fix the protruding rod 7 at a specific position. The second fixing nut 9 is used to fix the iron chain.

[0017] When sawing the iron chain, the mobile chain hook is moved to the desired position and fixed by the limit nut 8, one end of the iron chain is hung on the fixed chain hook, and the other end is hung on the mobile chain hook, and the sawing operation begins.

[0018] Other parts of the present invention not described in detail belong to the prior art and will not be described here.

[0019] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An underground chain cutting auxiliary device, characterized in that: Including chain cutting table, fixed chain hook, mobile chain hook, The chain cutting table is a rectangular table, and a T-shaped groove is provided on the upper surface of the chain cutting table along the length direction. The bottom width of the T-shaped groove is greater than the width of the notch. One end of the T-shaped groove is sealed to form a limit, and the other end is open. A scale is provided on the long side of the notch of the T-shaped groove. A baffle is provided at one end of the chain cutting table, the baffle is close to the sealing end of the T-shaped groove, a through hole is provided in the middle of the baffle, the fixed chain hook includes a screw rod and a first fixing nut, one end of the screw rod is provided with an external thread, and the other end is bent upward into a hook shape, the threaded end of the screw rod passes through the through hole and is fixed to the baffle plate through the first fixing nut, and the hook-shaped end of the screw rod is aligned with the scale origin. The movable chain hook includes a slider, a convex rod, a limit nut and a second fixing nut. The slider is slidably arranged in a T-shaped groove. The convex rod is fixedly arranged on the upper surface of the slider. The outer surface of the convex rod is provided with a thread. The limit nut and the second fixing nut are screwed on the convex rod. The limit nut is used to fix the convex rod at a specific position, and the second fixing nut is used to fix the iron chain.

2. The underground chain cutting auxiliary device according to claim 1, characterized in that: The T-shaped groove is arranged in the middle of the chain cutting table.

3. The underground chain cutting auxiliary device according to claim 1, characterized in that: Pedals are arranged on both sides of the chain cutting platform, the pedals are detachably connected to the chain cutting platform, and the pedals are arranged close to the baffle.

4. The underground chain cutting auxiliary device according to claim 1, characterized in that: The slider and the convex rod are integrally formed, the slider width is smaller than the T-groove bottom width and larger than the groove width, the convex rod width is smaller than the groove width, and the convex rod length is larger than the T-groove depth, so that the slider can be inserted from the T-groove opening end.

5. The underground chain cutting auxiliary device according to claim 1, characterized in that: The scale is a scale sticker.

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