Chain transmission tensioning device of coating and paint removing furnace

Abstract

The utility model relates to the technical field of secondary aluminum processing, in particular to a chain transmission tensioning device of a coating and paint removing furnace, which comprises a paint removing furnace support, two tensioning devices are symmetrically arranged at the top of the paint removing furnace support, and a gear assembly is arranged between the two tensioning devices. The tensioner comprises a mounting base, a lead screw, a pressure spring and a tensioning shaft, an open groove is formed in the upper portion of the vertical portion of the mounting base, and the lead screw is vertically arranged on the horizontal portion of the mounting base; the pressure spring is arranged on the lead screw in a sleeving mode, the tensioning shaft is arranged on the lead screw in a sliding and sleeving mode and located above the pressure spring, the lead screw is further provided with a limiting piece for limiting the positions of the pressure spring and the tensioning shaft, and one end of the tensioning shaft penetrates through the open groove and is connected with the gear assembly. According to the chain tensioning device, the tensioning degree of the chain of the coating and paint removing furnace can be conveniently adjusted, rapid and accurate adjustment of the tensioning degree of the chain can be achieved, and it is guaranteed that the chain always keeps the proper tensioning degree in the running period of the coating and paint removing furnace.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of recycled aluminium processing technology, concretely relates to a coating removal paint stripping furnace chain drive tensioning device. BACKGROUND

[0002] In the recycled aluminium processing production process, the coating removal paint stripping furnace is a very key equipment, and the operation state of the coating removal paint stripping furnace is directly related to whether the production can be smoothly carried out. At present, the driving structure of the coating removal paint stripping furnace usually has high stability, however, when the driving structure adopts the chain drive mode, since the chain drives in the horizontal plane, the stress distribution of the chain is uneven, so that the stability of the chain drive is not ideal. Moreover, with the long-time continuous operation of the chain, the chain will be gradually elongated, and then the phenomenon of frequent chain loosening occurs.

[0003] The chain loosening seriously affects the production quality of the recycled aluminium, so that the produced recycled aluminium products are uneven in coating treatment effect. At present, for the problem of chain loosening, the tensioning degree of the chain is mainly adjusted by manual adjustment, and a large amount of manpower and time is consumed in the process of adjusting the tensioning degree of the chain, and the labor intensity of the workers is large. Moreover, when the chain is adjusted, the disassembly operation of the related parts is extremely inconvenient, and the maintenance difficulty is large. At the same time, the manual adjustment mode is difficult to accurately grasp the tensioning degree of the chain, and the situation of improper chain tensioning easily occurs, so that the chain tensioning effect is not ideal. SUMMARY

[0004] The utility model discloses to solve the problem that the tensioning degree of the chain of the existing coating removal paint stripping furnace is inconvenient to adjust and the tensioning degree of the chain is difficult to accurately adjust, and provides a coating removal paint stripping furnace chain drive tensioning device. The device is convenient for adjusting the tensioning degree of the chain of the coating removal paint stripping furnace, can realize the rapid and accurate adjustment of the tensioning degree of the chain, ensures that the chain always maintains the appropriate tensioning degree during the operation of the coating removal paint stripping furnace, and thus improves the production efficiency and the quality of the recycled aluminium products.

[0005] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows: a coating removal paint stripping furnace chain drive tensioning device, comprising a paint stripping furnace support, two tensioners are symmetrically arranged on the top of the paint stripping furnace support, and a gear assembly is arranged between the two tensioners. The height of the adjustable gear assembly can be adjusted by the two tensioners, and the effect of adjusting the tensioning degree of the chain of the coating removal paint stripping furnace is realized by adjusting the height of the gear assembly.

[0006] The tensioner comprises a mounting seat, a lead screw, a pressure spring and a tensioning shaft, the mounting seat is arranged on the top of the paint stripping furnace support, a slot is formed in the upper part of the vertical part of the mounting seat, and the lead screw is vertically arranged on the horizontal part of the mounting seat. The mounting seat supports the paint stripping furnace support, and the slot facilitates the movement of the tensioning shaft on the lead screw.

[0007] The compression spring is sleeved on the screw rod, the tensioning shaft is sleeved on the screw rod and located above the compression spring, the screw rod is further provided with a limiting member for limiting the positions of the compression spring and the tensioning shaft, and one end of the tensioning shaft penetrates through the slot and is connected with the gear assembly. The limiting member limits the compression state of the compression spring and the position of the tensioning shaft, and adjusting the position of the limiting member can release the elastic potential energy stored by the compression spring, push the tensioning shaft to move on the screw rod, and achieve the purpose of adjusting the height of the gear assembly, thereby achieving the effect of adjusting the tensioning degree of the chain of the paint removal furnace.

[0008] Further, the mounting seat is in an "L" shape structure, the top of the mounting seat is symmetrically provided with a reinforcing plate, the reinforcing plate is fixedly connected with the vertical part of the mounting seat, and the top of the mounting seat is further fixedly provided with a mounting block, and the lower end of the screw rod is threadedly connected with the mounting block. The reinforcing plate plays a role in stabilizing and reinforcing the mounting seat, and the mounting block plays a role in mounting the screw rod.

[0009] Further, the limiting member comprises a locking nut, a tensioning sleeve and a fastening nut, the tensioning sleeve is located below the compression spring, the diameter of the tensioning sleeve is greater than that of the compression spring, the locking nut is located at the bottom of the tensioning sleeve and is threadedly connected with the screw rod, and the fastening nut is located above the tensioning shaft and is threadedly connected with the screw rod. The locking nut limits the position of the tensioning sleeve, the diameter of the tensioning sleeve is greater than that of the compression spring, which ensures that the compression spring can store elastic potential energy, and the fastening nut limits the position of the tensioning shaft, and adjusting the position of the fastening nut on the screw rod can make the compression spring store or release elastic potential energy to push the tensioning shaft to move upward.

[0010] Further, the tensioning shaft is symmetrically provided with a sliding block on two sides, the sliding block is slidably connected with the vertical part of the mounting seat, and the sliding block and the vertical part of the mounting seat are matched to facilitate the upward and downward movement of the tensioning shaft on the screw rod and in the slot, thereby playing a guiding role.

[0011] Further, the gear assembly comprises a gear disc shaft and a gear, the gear is rotatably arranged on the gear disc shaft, two ends of the gear disc shaft are respectively connected with the tensioning shafts of the two tensioners, and the tensioning shafts of the two tensioners can drive the gear disc shaft and the gear thereon to move upward and downward under the action of the elastic potential energy of the compression spring, thereby achieving the effect of adjusting the tensioning degree of the chain of the paint removal furnace.

[0012] Further, a stop ring is fixedly arranged at the connection between the gear disc shaft and the tensioning shaft, the diameter of the stop ring is greater than the diameter of the tensioning shaft and the width of the slot, and the stop ring limits the position of the gear disc shaft to prevent the gear disc shaft from moving left and right.

[0013] By the above technical scheme, the utility model has the advantages that:

[0014] The utility model discloses reasonable structure, good use effect is convenient for the tightness of the coating removal and paint stripping furnace chain of going to adjust, can realize the quick, accurate adjustment of the tightness of chain, makes the operation of coating removal and paint stripping furnace more stable and reliable, can compensate the elongation of chain because of long -time operation, ensures that the chain always keeps the suitable tightness during coating removal and paint stripping furnace operation, avoids that the chain is too loose or too tight and causes the excessive wear of chain itself and gear, prolongs the service life of chain, reduces the maintenance cost and replacement frequency of equipment, simultaneously also reduces the labor intensity of staff, improves the maintenance efficiency, shortens the time of coating removal and paint stripping furnace shutdown because of chain adjustment.

[0015] The utility model discloses two tightener adjustment gear assembly's height, adopts the effect of adjusting the tightness of coating removal and paint stripping furnace chain of going to the way of adjustment gear assembly height, wherein through the position of adjusting limit piece fastening nut, reach the compression spring compression storage elastic potential or release elastic potential and push the purpose of the upward movement of tight axle, thereby realize the effect of tight axle drive gear disc axle and go up and down and move and adjust the tightness of coating removal and paint stripping furnace chain.

[0016] The utility model discloses tight axle drive gear disc axle and go up and down and move during, the cooperation of slide block and mounting seat vertical part can provide the stable guiding effect for tight axle, avoid the phenomenon that gear disc axle appears to deviate or jam, thereby make the operation of adjusting chain tightness more smooth. DRAWINGS

[0017] Figure 1 It is the structure schematic of the utility model kind of coating removal and paint stripping furnace chain drive tightener Figure One ;

[0018] Figure 2 It is the structure schematic of the utility model kind of coating removal and paint stripping furnace chain drive tightener Figure Two ;

[0019] Figure 3 It is the structure schematic of the utility model kind of coating removal and paint stripping furnace chain drive tightener Figure Three .

[0020] The figure mark is: 1 is the paint stripping furnace support, 2 is the mounting seat, 3 is the reinforcing plate, 4 is the mounting block, 5 is the screw rod, 6 is the locking nut, 7 is the tight sleeve, 8 is the fastening nut, 9 is the pressure spring, 10 is the slot, 11 is the tight axle, 12 is the gear disc axle, 13 is the stop ring, 14 is the slide block, 15 is the gear. SPECIFIC IMPLEMENTATION

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1-3 As shown, a chain drive tensioning device for a paint stripping furnace includes a paint stripping furnace support 1. Two tensioners are symmetrically arranged on the top of the support 1, and a gear assembly is disposed between the two tensioners. In this embodiment, the support 1 provides an installation position for the tensioners. The gear assembly is connected to the two tensioners, and the height of the gear assembly can be adjusted via the two tensioners. Adjusting the height of the gear assembly allows for adjustment of the chain tension of the paint stripping furnace.

[0023] The tensioner includes a mounting base 2, a lead screw 5, a pressure spring 9, and a tensioning shaft 11. The mounting base 2 is located on top of the paint stripping furnace support 1, and a slot 10 is formed in the upper vertical part of the mounting base 2. The lead screw 5 is vertically arranged in the horizontal part of the mounting base 2. In this embodiment, the mounting base 2 is bolted to the top of the paint stripping furnace support 1, and the slot 10 facilitates the tensioning shaft 11 to drive the gear assembly to move up and down. The pressure spring 9 is selected as a pressure spring 9 with model SPRING CODE BLEU COD 9- 3240 – 21 and specification ϕe50-øi25 L0=254. This pressure spring 9 has a suitable elastic coefficient and compression amount, and can provide stable and sufficient thrust after the limiting part is loosened, ensuring that the tensioning shaft 11 can move smoothly to adjust the tension of the paint stripping furnace chain. The tensioning shaft 11 is made of 40# steel, and the lead screw 5 is made of 40CrNiMo material. Both have high strength and toughness, and can withstand the tension and impact generated during the chain drive of the coating removal and paint stripping furnace, ensuring the reliability and stability of the tensioner during long-term use.

[0024] The pressure spring 9 is sleeved on the lead screw 5, and the tensioning shaft 11 is slidably sleeved on the lead screw 5 and located above the pressure spring 9. The lead screw 5 is also provided with a limiting member to restrict the positions of the pressure spring 9 and the tensioning shaft 11. One end of the tensioning shaft 11 passes through the slot 10 and is connected to the gear assembly. In this embodiment, the tensioning shaft 11 has a through hole, through which it is slidably sleeved on the lead screw 5. The limiting member allows the pressure spring 9 to be in a compressed state and restricts the position of the tensioning shaft 11. Adjusting the position of the limiting member allows the pressure spring 9 to compress and store elastic potential energy or release elastic potential energy. After compression, the pressure spring 9 can cause the tensioning shaft 11 to move downwards through the limiting member, driving the gear assembly downwards. When the pressure spring 9 releases its elastic potential energy, it pushes the tensioning shaft 11 upwards, driving the gear assembly upwards, thus adjusting the height of the gear assembly and achieving the effect of adjusting the tension of the coating removal and paint stripping furnace chain.

[0025] The mounting base 2 has an "L"-shaped structure. Reinforcing plates 3 are symmetrically arranged on the top of the mounting base 2, and the reinforcing plates 3 are fixedly connected to the vertical part of the mounting base 2. A mounting block 4 is also fixedly arranged on the top of the mounting base 2, and the lower end of the lead screw 5 is threadedly connected to the mounting block 4. In this embodiment, there are two reinforcing plates 3 on the top of the mounting base 2. The reinforcing plates 3 are welded and fixed to the top of the mounting base 2, providing a stable reinforcement. The mounting block 4 is welded and fixed to both the vertical and horizontal parts of the mounting base 2. The mounting block 4 serves to install the lead screw 5, and the lower end of the lead screw 5 is also fixed to the mounting block 4 by a fixing nut.

[0026] The limiting components include a locking nut 6, a tensioning sleeve 7, and a fastening nut 8. The tensioning sleeve 7 is located below the pressure spring 9, and its diameter is larger than that of the pressure spring 9. The locking nut 6 is located at the bottom of the tensioning sleeve 7 and is threadedly connected to the lead screw 5. The fastening nut 8 is located above the tensioning shaft 11 and is threadedly connected to the lead screw 5. In this embodiment, the diameter of the tensioning sleeve 7 is larger than that of the pressure spring 9 to ensure that the tensioning shaft 11 can compress and store elastic potential energy under the action of the fastening nut 8. The fastening nut 8 restricts the tensioning shaft 11. When the fastening nut 8 is loosened and moves upward, the stored elastic potential energy of the pressure spring 9 is released, and the pressure spring 9 pushes the tensioning shaft 11 upward. The tensioning shaft 11 drives the gear assembly upward, and the movement of the gear assembly can adjust the tension of the coating stripping furnace chain.

[0027] Slider 14s are symmetrically arranged on both sides of the tensioning shaft 11, and the sliders 14 are slidably connected to the vertical part of the mounting base 2. In this embodiment, the sliders 14 are made of bronze B20 material, which has good wear resistance and self-lubricating properties. During the up-and-down movement of the tensioning shaft 11, the sliders 14 can provide a stable guiding effect for the tensioning shaft 11, avoiding misalignment or jamming of the gear assembly, thereby making the operation of adjusting the tension of the coating stripping furnace chain smoother.

[0028] The gear assembly includes a gear shaft 12 and a gear 15. The gear 15 is rotatably mounted on the gear shaft 12, and both ends of the gear shaft 12 are respectively connected to the tensioning shafts 11 of the two tensioners. In this embodiment, a bushing is installed between the gear 15 and the gear shaft 12. The bushing is fitted onto the gear shaft 12 and has an "I" shaped structure. The gear 15 has matching concave grooves on both sides of the bushing, and the coating stripping furnace chain is fitted onto the gear 15.

[0029] The connecting part of the gear disc shaft 12 and the tensioning shaft 11 is fixedly provided with a stop ring 13, the diameter of the stop ring 13 is greater than the diameter of the tensioning shaft 11 and the width of the slot 10. In the embodiment, the stop ring 13 can prevent the gear disc shaft 12 from moving left and right to the two ends thereof.

[0030] The working principle of the utility model is as follows: when the tension of the paint removal furnace chain needs to be adjusted, firstly loosen the fastening nuts 8 on the two tensioner lead screws 5, rotate the fastening nuts 8 to make the fastening nuts move upward on the lead screws 5, at this time, the elastic potential energy stored in the compression springs 9 is released, under the action of the elastic potential energy of the compression springs 9, the compression springs 9 push the tensioning shafts 11 to move upward, the tensioning shafts 11 slide upward on the lead screws 5 and drive the sliding blocks 14 to slide upward on the vertical parts of the mounting seats 2, the tensioning shafts 11 of the two tensioners drive the gear disc shaft 12 to move upward, the gear disc shaft 12 synchronously drives the gears 15 to move upward, the gears 15 can directly adjust the tightness of the paint removal furnace chain sleeved on the gears 15 when moving, the tension of the paint removal furnace chain can be quickly and conveniently adjusted, and the paint removal furnace chain can be restored to a suitable tension state; wherein after the tension of the paint removal furnace chain is adjusted, rotate the fastening nuts 8 again, and rotate the fastening nuts 8 to the top of the tensioning shafts 11.

[0031] Stable paint removal furnace chain transmission can ensure the synchronism and coordination of various components during the operation of the paint removal furnace, make the regeneration aluminum coating treatment process more uniform and stable, effectively reduce the coating defects of the regenerated aluminum products caused by the loosening of the paint removal furnace chain, improve the quality of the regenerated aluminum products, and enhance the competitiveness of the regenerated aluminum products in the market.

[0032] The above-described embodiments are only preferred embodiments of the utility model, and do not limit the scope of the utility model, so equivalent changes or modifications made according to the technical solutions described in the utility model patent scope should be included in the patent scope of the utility model application.

Claims

1. A de-coating paint stripping furnace chain drive tensioning device comprising a paint stripping furnace support (1), characterised in that, The paint stripping furnace support (1) top is symmetrically provided with two tensioners, and a gear assembly is arranged between the two tensioners; The tensioner comprises a mounting seat (2), a lead screw (5), a pressure spring (9) and a tensioning shaft (11), the mounting seat (2) is arranged on the top of the paint stripping furnace support (1), a slot (10) is formed in the upper part of the vertical part of the mounting seat (2), and the lead screw (5) is vertically arranged on the horizontal part of the mounting seat (2); The pressure spring (9) is sleeved on the lead screw (5), the tensioning shaft (11) is sleeved on the lead screw (5) and located above the pressure spring (9), and a limiting piece is arranged on the lead screw (5) to limit the positions of the pressure spring (9) and the tensioning shaft (11), one end of the tensioning shaft (11) penetrates through the slot (10) and is connected with the gear assembly.

2. A chain drive tensioning device for a de-coating and paint stripping furnace as defined in claim 1, characterized in that The mounting seat (2) is in the shape of an "L", the top of the mounting seat (2) is symmetrically provided with a reinforcing plate (3), and the reinforcing plate (3) is fixedly connected with the vertical part of the mounting seat (2); the top of the mounting seat (2) is also fixedly provided with a mounting block (4), and the lower end of the lead screw (5) is threadedly connected with the mounting block (4).

3. A chain tensioner for a de-coating and paint stripping furnace as defined in claim 1, wherein, The limiting piece comprises a locking nut (6), a tensioning sleeve (7) and a fastening nut (8), the tensioning sleeve (7) is located below the pressure spring (9), the diameter of the tensioning sleeve (7) is greater than that of the pressure spring (9), the locking nut (6) is located at the bottom of the tensioning sleeve (7) and is threadedly connected with the lead screw (5), and the fastening nut (8) is located above the tensioning shaft (11) and is threadedly connected with the lead screw (5).

4. A chain tensioner for a de-coating and paint stripping furnace as defined in claim 1, wherein, The tensioning shaft (11) is symmetrically provided with a sliding block (14) on both sides, and the sliding block (14) is slidably connected with the vertical part of the mounting seat (2).

5. A chain drive tensioning device for a de-coating and paint stripping furnace as defined in claim 1, wherein, The gear assembly comprises a gear disc shaft (12) and a gear (15), the gear (15) is rotatably arranged on the gear disc shaft (12), and the two ends of the gear disc shaft (12) are respectively connected with the tensioning shafts (11) of the two tensioners.

6. A chain tensioner for a de-coating and paint stripping furnace according to claim 5, wherein, A stop ring (13) is fixedly arranged at the connection between the gear disc shaft (12) and the tensioning shaft (11), and the diameter of the stop ring (13) is greater than the diameter of the tensioning shaft (11) and the width of the slot (10).

Images