Tensioning mechanism for speed chain

Abstract

The utility model relates to a tensioning mechanism for a speed chain. The tensioning mechanism comprises two side plates, two transverse plates, two connecting shafts, at least two chain wheels and at least one speed chain body. The two transverse plates are installed on the opposite sides of the two side plates respectively, one connecting shaft is rotationally connected between the two opposite side plates, the other connecting shaft is arranged in the two transverse plates, and the two connecting shafts are arranged in parallel. According to the tensioning mechanism for the speed chain, the connecting shaft and the chain wheels can be easily driven to move front and back in the Y-axis direction through cooperation of the air cylinder and the sleeve, the distance between the chain wheels can be rapidly adjusted, and the tensioning degree of a speed chain body can be conveniently adjusted; the position of the lower pressing roller can be automatically adjusted according to the tension degree change of the speed chain body, when the tension degree of the speed chain body changes, the lower pressing roller always provides stable supporting force, the tensioning state of the lower pressing roller is maintained, and stable operation of equipment is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of speed chain, specifically is a tensioning mechanism for speed chain. BACKGROUND

[0002] In modern production line operation, speed chain is widely used in various automatic production equipment due to its efficient conveying capacity and stable operation performance. However, the existing speed chain has a prominent problem in actual use, that is, its output length is often fixed.

[0003] When the production process changes or the production line needs to be rearranged and adjusted, the output length of the speed chain may need to be changed to adapt to the new production requirements. However, due to the fixed output length of the current speed chain, the adjustment process is extremely inconvenient. The traditional adjustment method usually requires a lot of manpower, material resources and time, and even the entire speed chain system may need to be disassembled and reassembled, which not only seriously affects the production efficiency, but also increases the operating cost of the enterprise. Moreover, during the adjustment process, due to the lack of effective tensioning mechanism, it is difficult to ensure that the speed chain can still maintain good tensioning state under the new length, which may cause the chain to loosen, skip teeth and other phenomena, affecting the normal operation of the equipment, even causing equipment failure, and reducing the service life of the equipment. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a tensioning mechanism for speed chain, which solves the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tensioning mechanism for speed chain, comprising two side plates, two horizontal plates, two connecting shafts, at least two sprockets and at least one speed chain body;

[0006] Two horizontal plates are respectively installed on the opposite side of two side plates, one of the connecting shafts is rotatably connected between the opposite two side plates, and the other connecting shaft is arranged inside the two horizontal plates, and the two connecting shafts are arranged in parallel;

[0007] Two sprockets are respectively sleeved on the outer side of two connecting shafts, and at least one speed chain body is drivingly connected on the outer side of two sprockets;

[0008] A sliding groove is formed in the horizontal plate along the Y-axis direction, and the front connecting shaft is slidingly connected in the sliding groove;

[0009] A mounting plate is arranged at the bottom of the two side plates, the upper surface of the mounting plate is provided with a cylinder along the Y-axis direction, a sleeve pipe is movably arranged outside the front connecting shaft, the sleeve pipe is in transmission connection with the output end of the cylinder, so as to drive the front connecting shaft and the sprocket to move back and forth along the Y-axis direction.

[0010] A supporting assembly is further arranged on the lower surface of the side plate, so as to support the speed-up chain body, so that the speed-up chain body is always in a tight state.

[0011] Further, the sleeve pipe is arranged at the middle segment of the outer surface of the front connecting shaft.

[0012] Further, the width of the sliding groove along the Z-axis direction is matched with the diameter of the connecting shaft.

[0013] Further, limit nuts are arranged at the left and right ends of the front connecting shaft, the two limit nuts are respectively attached to the opposite sides of the two horizontal plates, and the limit function of the left and right direction movement of the front connecting shaft is realized through the attachment between the two limit nuts.

[0014] Further, the supporting assembly comprises connecting barrels respectively arranged on the two side plates, supporting rods are connected through the inner bottom wall of the connecting barrels, the bottom ends of the two supporting rods are provided with bearing seats, a lower pressing roller is rotatably connected between the opposite sides of the two bearing seats, the lower pressing roller is attached to the inner side of the speed-up chain body along the X-axis direction, and the speed-up chain body and the lower pressing roller are cross-distributed.

[0015] One end of the supporting rod located in the connecting barrel is provided with a limit ring, and a spring is assembled between the limit ring and the inner top wall of the connecting barrel.

[0016] Further, the outer diameter of the limit ring is greater than the inner diameter of the opening at the bottom of the connecting barrel.

[0017] Compared with the prior art, the technical scheme has the following beneficial effects:

[0018] The tensioning mechanism for the speed-up chain can easily drive the connecting shaft and the sprocket to move back and forth along the Y-axis direction through the cooperation of the cylinder and the sleeve pipe, quickly adjust the distance between the sprockets, conveniently adjust the tensioning degree of the speed-up chain body, automatically adjust the position of the lower pressing roller according to the change of the tensioning degree of the speed-up chain body through the cooperation of the spring and the lower pressing roller in the assembly, always provide stable supporting force for the lower pressing roller when the tensioning degree of the speed-up chain body changes, maintain the tight state of the speed-up chain body, and effectively guarantee the stable operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is a sectional structure schematic view of the utility model;

[0021] Figure 3 It is a support assembly structure schematic view of the utility model.

[0022] In the figure: 1, side plate; 2, cross plate; 3, connecting shaft; 4, chain wheel; 5, speed chain main body; 6, mounting plate; 7, air cylinder; 8, sleeve; 9, support assembly; 901, connecting cylinder; 902, support rod; 903, bearing seat; 904, pressing roller; 905, limit ring; 906, spring; 10, limit nut. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-2 A tensioning mechanism for speed chain in the embodiment is used to adjust the tensioning degree and output length of the speed chain main body 5.

[0025] Specifically, it comprises two side plates 1, two cross plates 2, two connecting shafts 3, at least two chain wheels 4 and at least one speed chain main body 5.

[0026] Two cross plates 2 are respectively installed on the opposite sides of two side plates 1, one connecting shaft 3 is rotationally connected between the opposite two side plates 1, and the other connecting shaft 3 is arranged inside two cross plates 2, and two connecting shafts 3 are arranged in parallel.

[0027] Two chain wheels 4 are respectively sleeved on the outer sides of two connecting shafts 3, at least one speed chain main body 5 is drivingly connected on the outer sides of two chain wheels 4, a sliding groove is formed in the inside of the cross plate 2 along the Y-axis direction, and the front connecting shaft 3 is slidingly connected in the inside of the sliding groove.

[0028] An installation plate 6 is arranged on the bottom of two side plates 1, an air cylinder 7 is arranged on the upper surface of the installation plate 6 along the Y-axis direction, a sleeve 8 is movably sleeved on the outer side of the front connecting shaft 3, and the sleeve 8 is drivingly connected with the output end of the air cylinder 7, so as to drive the front connecting shaft 3 and the chain wheel 4 to move forward and backward along the Y-axis direction.

[0029] A support assembly 9 is further arranged on the lower surface of the side plate 1, so as to support the speed chain main body 5, so that the speed chain main body 5 is always in a tight state.

[0030] In actual setting, through the operation of the cylinder 7, the output end pushes the sleeve 8, since the sleeve 8 is sleeved on the connecting shaft 3, further drives the front connecting shaft 3 and the sprocket 4 to move back and forth along the Y axis direction, this connection mode can accurately adjust the distance between the two sprockets 4 in the same Y axis mode, so as to change the tension of the speed chain body 5, and adjust the length output by the speed chain body 5 to adapt to different production needs.

[0031] Further, the sleeve 8 is arranged at the middle section of the outer surface of the front connecting shaft 3, and the width of the sliding groove in the Z axis direction is matched with the diameter of the connecting shaft 3.

[0032] In the initial state, the speed chain body 5 is installed on the two sprockets 4 and is in a certain tension state, when it is necessary to adjust the tension of the speed chain body 5, the cylinder 7 starts to work, the output end of the cylinder 7 pushes the sleeve 8, since the sleeve 8 is sleeved on the middle section of the outer surface of the front connecting shaft 3, and the connecting shaft 3 is in sliding connection with the sliding groove of the cross plate 2, so the connecting shaft 3 will move back and forth along the Y axis direction with the pushing of the sleeve 8, the movement of the connecting shaft 3 drives the sprocket 4 sleeved on the outside of the connecting shaft 3 to move together, thereby changing the distance between the two sprockets 4.

[0033] When the distance between the sprockets 4 increases, the speed chain body 5 is further tensioned, realizing the increase of the tension; on the contrary, when the distance between the sprockets 4 decreases, the tension of the speed chain body 5 decreases.

[0034] In the process of moving the connecting shaft 3, the limiting nut 10 is always attached to the side opposite to the cross plate 2, limiting the left and right direction movement of the connecting shaft 3, ensuring that the moving direction of the connecting shaft 3 is always along the Y axis, ensuring the transmission stability of the speed chain body 5.

[0035] Further, the limiting nut 10 is arranged at the left and right ends of the front connecting shaft 3, and the two limiting nuts 10 are respectively attached to the sides opposite to the two cross plates 2, realizing the limiting function of the left and right direction movement of the front connecting shaft 3 through the attachment between the two.

[0036] In the process of moving the connecting shaft 3, the limiting nut 10 is always attached to the side opposite to the cross plate 2, limiting the left and right direction movement of the connecting shaft 3, ensuring that the moving direction of the connecting shaft 3 is always along the Y axis, ensuring the transmission stability of the speed chain body 5, and supporting the speed chain body 5 through the supporting assembly 9, so that the speed chain body 5 is always in a tight state.

[0037] Specifically, the support assembly 9 comprises a connecting cylinder 901 mounted on the two side plates 1 respectively, a support rod 902 is connected through the inner bottom wall of the connecting cylinder 901, the bottom end of the two support rods 902 is provided with a bearing seat 903, a lower pressing roller 904 is rotatably connected between the opposite sides of the two bearing seats 903, the lower pressing roller 904 is attached to the inner side of the speed chain body 5 along the X-axis direction, and the lower pressing roller 904 and the speed chain body 5 are cross-distributed.

[0038] One end of the support rod 902 located inside the connecting cylinder 901 is provided with a limiting ring 905, and a spring 906 is assembled between the limiting ring 905 and the inner top wall of the connecting cylinder 901.

[0039] In actual use, the lower pressing roller 904 is always attached to the inner side of the speed chain body 5 under the action of the spring 906, when the tension of the speed chain body 5 changes, the lower pressing roller 904 moves up and down with the position change of the speed chain body 5, for example, when the speed chain body 5 is tightened, the pressure on the lower pressing roller 904 increases, the lower pressing roller 904 pushes the support rod 902 to move upward so that the spring 906 is compressed, when the tension of the speed chain body 5 decreases, the elastic force of the spring 906 makes the support rod 902 and the lower pressing roller 904 move downward, always keeping the support of the speed chain body 5, ensuring that the speed chain body 5 is always in a tight state during operation, avoiding phenomena such as loosening and tooth skipping, and ensuring the normal operation of the equipment.

[0040] It should be noted that, in order to prevent the support rod 902 from falling out of the connecting cylinder 901, the outer diameter of the limiting ring 905 in the embodiment is greater than the inner diameter of the bottom opening of the connecting cylinder 901.

[0041] It should be noted that, in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the statement "including a…" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0042] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tensioning mechanism for a multiple speed chain, characterized by: It comprises two side plates (1), two horizontal plates (2), two connecting shafts (3), at least two chain wheels (4) and at least one speed-up chain body (5). Two horizontal plates (2) are respectively installed on the opposite sides of two side plates (1), one of the connecting shafts (3) is rotatably connected between the opposite two side plates (1), the other connecting shaft (3) is arranged inside the two horizontal plates (2), and the two connecting shafts (3) are arranged in parallel. Two chain wheels (4) are respectively sleeved on the outer sides of the two connecting shafts (3), and at least one speed-up chain body (5) is drivingly connected on the outer sides of the two chain wheels (4). A sliding groove is formed in the inside of the horizontal plate (2) along the Y-axis direction, and the front connecting shaft (3) is slidingly connected in the inside of the sliding groove. A mounting plate (6) is arranged on the bottom of the two side plates (1), an air cylinder (7) is arranged on the upper surface of the mounting plate (6) along the Y-axis direction, a sleeve pipe (8) is movably sleeved on the outer side of the front connecting shaft (3), and the sleeve pipe (8) is drivingly connected with the output end of the air cylinder (7) to drive the front connecting shaft (3) and the chain wheel (4) to move forward and backward along the Y-axis direction. A supporting assembly (9) is further arranged on the lower surface of the side plate (1) to support the speed-up chain body (5) so that the speed-up chain body (5) is always in a tight state.

2. A tensioning mechanism for a multiple speed chain as defined in claim 1, characterized in that: The sleeve pipe (8) is arranged on the middle segment of the outer surface of the front connecting shaft (3).

3. A tensioning mechanism for a multiple speed chain as set forth in claim 1, characterized in that: The width of the sliding groove in the Z-axis direction is matched with the diameter of the connecting shaft (3).

4. The tensioning mechanism for a multiple speed chain as set forth in claim 1, wherein: Limiting nuts (10) are arranged on the left and right ends of the front connecting shaft (3), the two limiting nuts (10) are respectively attached to the opposite sides of the two horizontal plates (2), and the attachment between the two limiting nuts (10) realizes the limiting function of the left and right direction movement of the front connecting shaft (3).

5. The tensioning mechanism for a multiple speed chain as set forth in claim 1, wherein: The supporting assembly (9) comprises connecting barrels (901) respectively arranged on the two side plates (1), supporting rods (902) penetratingly connected to the inner bottom wall of the connecting barrels (901), bearing seats (903) arranged at the bottom ends of the two supporting rods (902), a lower pressing roller (904) rotatably connected between the opposite sides of the two bearing seats (903), the lower pressing roller (904) being attached to the inside of the speed-up chain body (5) along the X-axis direction and being cross-distributed with the speed-up chain body (5). A limiting ring (905) is arranged at one end of the supporting rod (902) inside the connecting barrel (901), and a spring (906) is arranged between the limiting ring (905) and the inner top wall of the connecting barrel (901).

6. A tensioning mechanism for a multiple speed chain as defined in claim 5, wherein: The outer diameter of the limiting ring (905) is greater than the inner diameter of the opening at the bottom of the connecting barrel (901).

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