Chain guide and chain tightener device

Abstract

This application discloses a chain guide rail and a chain tightener device. The chain guide rail includes a guide rail body, a gear device, a metal chain, an electromagnetic attraction device, a lubrication device, a distance detection device, and a guide rail moving device. A chain guiding and limiting groove is provided on the guide rail body for the metal chain to be movably inserted. In this application, the electromagnetic attraction device attracts the metal chain to tighten the metal chain. The lubrication device is used to discharge lubricating oil to reduce the friction and wear of the metal chain, reduce energy consumption, improve the transmission efficiency, and reduce equipment failures and maintenance costs. The chain tightening mechanism of the chain tightener device includes a chain tightening base, a rotating screw, and a screw driving assembly. The screw driving assembly is used to drive the rotating screw to rotate, and the rotating screw drives the gear device to move to tighten the metal chain. It not only improves the efficiency and accuracy of the metal chain tensioning, but also reduces manual intervention through automatic control and reduces maintenance costs.

Description

Technical Field

[0001] This application relates to the technical field of chain tensioning, particularly to chain guides and chain tightener devices. Background Art

[0002] Metal chain drives are widely used in industries, construction, and manufacturing, powered by electric motors. However, during long-term use, due to reasons such as wear, plastic deformation, overloading, temperature changes, lack of maintenance, or vibration shock, the tension of the metal chain will decrease. This not only reduces the transmission efficiency, exacerbates the wear between the chain and the sprocket, but also increases the equipment failure rate and the risk of safety accidents, leading to an increase in maintenance costs. Existing chain tensioning devices tighten by directly pressing against and supporting the metal chain, which not only increases the friction and noise of the metal chain, but also exacerbates the wear of the chain, increases the risk of breakage, thereby increasing energy consumption and shortening the service life of the equipment. Summary of the Invention

[0003] To improve the defect that existing chain tensioning devices tighten by directly pressing against and supporting the metal chain, which increases the friction and noise of the metal chain, exacerbates the wear of the chain, and increases the risk of breakage, this application provides a chain guide and a chain tightener device.

[0004] The chain guide and chain tightener device provided by this application adopt the following technical solutions:

[0005] A chain guide, comprising a guide rail body, gear devices provided at both ends of the guide rail body, a metal chain sleeved outside the two gear devices and meshing with the two gear devices respectively, an electromagnetic attraction device provided on the guide rail body and located on one side of the metal chain, a lubrication device, a distance detection device inserted into the electromagnetic attraction device, and a guide rail moving device for guiding and supporting the metal chain; a chain guiding and limiting groove is provided on the guide rail body along the length direction of the guide rail body, and the chain guiding and limiting groove is used for the metal chain to be movably inserted.

[0006] The guide rail moving device is located on one side of the chain guiding and limiting groove and is used to move towards or away from the metal chain to adjust the width of the chain guiding and limiting groove; the electromagnetic attraction device is located on the other side of the chain guiding and limiting groove and is used to attract the metal chain, so that the metal chain moves towards the direction of the electromagnetic attraction device, tightening the metal chain sleeved on the two gear devices, and the metal chain maintains a gap with the chain guiding and limiting groove and the guide rail moving device respectively.

[0007] By adopting the above technical solution, through the cooperation of the chain guiding and limiting groove on the guide rail body and the guide rail moving device, it is possible to guide and support the metal chain when the metal chain vibrates or disengages, and attract the metal chain through the electromagnetic attraction device to tighten the metal chain sleeved on the two gear devices, thereby realizing chain tensioning; the lubricating device is used to discharge lubricating oil when the metal chain is in contact with the electromagnetic attraction device or the side wall of the chain guiding and limiting groove, so as to reduce the friction and wear of the metal chain; the distance detection device is used to monitor the tension degree of the metal chain in real time, ensure that the metal chain maintains an appropriate gap with the chain guiding and limiting groove and the guide rail moving device, further reduces the direct friction on the metal chain, reduces energy consumption, improves transmission efficiency, and reduces equipment failures and maintenance costs.

[0008] Preferably, the metal chain includes a first chain segment on one side of the gear device and a second chain segment on the other side of the gear device;

[0009] The chain guiding and limiting groove includes a first guiding and limiting groove provided on one side of the guide rail body for inserting the first chain segment, and a second guiding and limiting groove provided on the other side of the guide rail body for inserting the second chain segment; the guide rail moving device is located between the first chain segment and the second chain segment.

[0010] By adopting the above technical solution, the first chain segment is inserted into the first guiding and limiting groove, and the second chain segment is inserted into the second guiding and limiting groove, realizing the guiding and limiting of the metal chain; the guide rail moving device located between the first chain segment and the second chain segment can adjust the width of the chain guiding and limiting groove as needed to adapt to chains of different sizes and different tension degrees, improve the stability and reliability of the metal chain transmission, reduce the wear of the metal chain and the gear device, and extend the service life of the equipment.

[0011] Preferably, the electromagnetic attraction device includes a first magnetic attraction mechanism provided on the outer side of the first chain segment and a second magnetic attraction mechanism provided on the outer side of the second chain segment;

[0012] Both the first magnetic attraction mechanism and the second magnetic attraction mechanism include a first electromagnet assembly, a second electromagnet assembly, and a third electromagnet assembly arranged along the length direction of the guide rail body; the first electromagnet assembly is used to attract one end of the first chain segment and the second chain segment, the third electromagnet assembly is used to attract the other end of the first chain segment and the second chain segment, and the second electromagnet assembly is used to attract the middle position of the first chain segment and the second chain segment.

[0013] By adopting the above technical solution, the first electromagnet assembly and the third electromagnet assembly respectively attract both ends of the first chain segment and the second chain segment, and the second electromagnet assembly attracts the middle positions of the first chain segment and the second chain segment, thereby achieving all-round attraction and tensioning of the metal chain. This application not only ensures uniform tensioning of the metal chain, but also optimizes the stability and transmission efficiency of the metal chain through precise adjustment of the electromagnetic force, reduces the negative effects caused by the slack or over-tightening of the metal chain, thereby extending the service life of the metal chain and reducing the maintenance cost.

[0014] Preferably, the distance detection device includes a first distance sensor inserted on the first electromagnet assembly, a second distance sensor inserted on the second electromagnet assembly, and a third distance sensor inserted on the third electromagnet assembly; the first distance sensor is used to detect the distance between one end of the first chain segment and the second chain segment and the first electromagnet assembly, the third distance sensor is used to detect the distance between the other end of the first chain segment and the second chain segment and the second electromagnet assembly, and the second distance sensor is used to detect the distance between the middle positions of the first chain segment and the second chain segment and the third electromagnet assembly.

[0015] By adopting the above technical solution, the first distance sensor is electrically connected to the first electromagnet assembly, the third distance sensor is electrically connected to the third electromagnet assembly, and the second electromagnet assembly maintains magnetic attraction at the middle positions of the first chain segment and the second chain segment. When the metal chain becomes loose and the tension decreases, the metal chain will move towards the direction close to the first electromagnet assembly and the third electromagnet assembly under the magnetic attraction of the second electromagnet assembly. When the distance between the metal chain and the first electromagnet assembly is greater than the preset distance value, the first distance sensor triggers the first electromagnet assembly to magnetically attract the metal chain; when the distance between the metal chain and the third electromagnet assembly is greater than the preset distance value, the third distance sensor triggers the third electromagnet assembly to magnetically attract the metal chain; this application ensures that the tension state of the metal chain within the full length range can be effectively monitored, thereby optimizing the stability and transmission efficiency of the metal chain. At the same time, by monitoring the change in the distance of the metal chain, the attraction force of the electromagnetic attraction device can be adjusted in a timely manner to keep the metal chain in the best tension state.

[0016] Preferably, the lubrication device includes a first lubrication mechanism provided on the outer side of the first chain segment and a second lubrication mechanism provided on the outer side of the second chain segment; both the first lubrication mechanism and the second lubrication mechanism include a first lubrication component provided between the first electromagnet assembly and the second electromagnet assembly and a second lubrication component provided between the second electromagnet assembly and the third electromagnet assembly.

[0017] By adopting the above technical solution, the metal chain is lubricated by the first lubrication mechanism and the second lubrication mechanism. The first lubrication component is located between the first electromagnet component and the second electromagnet component, and the second lubrication component is located between the second electromagnet component and the third electromagnet component. This design can lubricate the metal chain in all directions, reduce the friction and wear between the metal chain and the gear device and the chain guiding and limiting groove respectively, extend the service life of the metal chain, and at the same time reduce the energy consumption and maintenance cost, and improve the transmission efficiency and the overall reliability of the system.

[0018] Preferably, both the first lubrication component and the second lubrication component include an oil storage tank inserted into the guide rail body and used for storing lubricating oil, and a mechanical pump communicated with the oil storage tank and electrically connected to the second distance sensor. The guide rail body is provided with oil discharge micropores for communicating the oil storage tank with the chain guiding and limiting groove.

[0019] By adopting the above technical solution, the first lubrication component and the second lubrication component store lubricating oil through the oil storage tank, and the mechanical pump is communicated with the oil storage tank. When the metal chain is close to the side wall of the chain guiding and limiting groove or the distance from the second electromagnet component is less than the preset minimum distance value, the second distance sensor triggers the mechanical pump to start. The mechanical pump guides the lubricating oil in the oil storage tank from the oil discharge micropores on the guide rail body to the chain guiding and limiting groove, realizing precise lubrication of the metal chain. This application ensures that the metal chain is continuously and appropriately lubricated during the transmission process, reduces friction and wear, reduces energy consumption, improves transmission efficiency, and extends the service life of the equipment.

[0020] Preferably, the guide rail moving device includes a first pressing guide rail arranged inside the first chain section and a second pressing guide rail arranged inside the second chain section.

[0021] Both the first pressing guide rail and the second pressing guide rail include a guide rail driving component arranged on the guide rail body and electrically connected to the second distance sensor, a moving guide plate connected to the output end of the guide rail driving component, a first hinged guide plate with one end slidably connected to the moving guide plate and the other end hinged to the end of the guide rail body, and a second hinged guide plate. The first hinged guide plate and the second hinged guide plate are respectively located on both sides of the moving guide plate.

[0022] By adopting the above technical solution, when the metal chain vibrates or disengages, the inner side of the first chain section is guided and supported by the first pressing guide rail, and the inner side of the second chain section is guided and supported by the second pressing guide rail; when the metal chain moves towards the direction close to the second electromagnet assembly, the second distance sensor triggers the guide rail driving assembly to drive the moving guide plate to move towards the direction close to the metal chain, and the moving guide plate is hinged and guided with the first hinged guide plate and the second hinged guide plate. The first hinged guide plate and the second hinged guide plate are respectively located on both sides of the moving guide plate and are hinged to the end of the guide rail body, so that the moving guide plate reciprocates on the guide rail body to assist in adjusting the tension of the metal chain; the present application can automatically adjust the width of the chain guiding and limiting groove according to the tension degree of the metal chain to ensure a preset distance from the metal chain; it not only improves the flexibility and controllability of the metal chain tensioning process, but also optimizes the transmission efficiency and reduces wear by precisely controlling the gap between the metal chain and the guide rail moving device, and prolongs the service life of the metal chain.

[0023] Preferably, both the first hinged guide plate and the second hinged guide plate include a guide plate body, and a sliding shaft provided at one end of the guide plate body close to the moving guide plate. An avoidance groove is further provided at the end of the guide plate body, and the sliding shaft is inserted into the avoidance groove and fixed to the guide plate body at both ends;

[0024] The moving guide plate is provided with a strip-shaped sliding hole penetrating through both side walls of the moving guide plate; the sliding shaft is movably inserted into the strip-shaped sliding hole, and the moving guide plate is movably inserted into the avoidance groove.

[0025] By adopting the above technical solution, the first hinged guide plate and the second hinged guide plate are slidably connected to the moving guide plate through the cooperation of the sliding shaft on the guide plate body and the strip-shaped sliding hole on the moving guide plate; the avoidance groove at the end of the guide plate body enables the moving guide plate to be inserted, increasing the stability of the connection; the present application enables the first hinged guide plate and the second hinged guide plate to automatically adjust their positions according to the tension degree of the metal chain, improving the stability and flexibility of the first hinged guide plate and the second hinged guide plate during movement, ensuring the smooth movement and precise positioning of the first chain section and the second chain section, and thus improving the operation efficiency and reliability of the entire guide rail moving device.

[0026] The chain tightener device includes the chain guide rail as described above, and further includes a chain tightening mechanism provided at the end of the guide rail body and located between the guide rail body and the gear device; the chain tightening mechanism includes a chain tightening base, a rotating screw rod movably inserted on the chain tightening base and threadedly engaged with the gear device, and a screw rod driving assembly provided on the chain tightening base and electrically connected to the distance detection device;

[0027] When the distance between the metal chain and the electromagnetic attraction device is less than the minimum preset value, the distance detection device triggers the screw driving assembly to drive the rotating screw to rotate, and the rotating screw drives the gear device to move away from the other gear device, so as to tighten the metal chain.

[0028] By adopting the above technical solution, the rotating screw is in threaded fit with the gear device, and the screw driving assembly is electrically connected to the distance detection device; when the distance between the metal chain and the electromagnetic attraction device is less than the minimum preset value, the distance detection device triggers the screw driving assembly, and then drives the rotating screw to rotate, driving the gear device to move, further realizing the tightening of the metal chain; this application not only improves the efficiency and accuracy of the metal chain tensioning, but also reduces manual intervention through automatic control, reduces the maintenance cost, and at the same time ensures the stability and reliability of the transmission system.

[0029] Preferably, the chain tightening base is provided with a sliding guide hole arranged along the length direction of the chain tightening base, the rotating screw is inserted into the sliding guide hole from the side wall of the chain tightening base along the length direction of the sliding guide hole, and the gear device includes a sliding base inserted into the sliding guide hole and in threaded fit with the rotating screw, and a gear body bearing-connected to the sliding base.

[0030] By adopting the above technical solution, the sliding guide hole on the chain tightening base is used to guide the moving direction of the rotating screw, the rotating screw is in threaded fit with the sliding base, and the sliding base is inserted into the sliding guide hole and is bearing-connected to the gear body; so that when the rotating screw rotates, it can drive the sliding base to move along the length direction of the sliding guide hole, thereby driving the gear body to move, realizing the tensioning adjustment of the metal chain; the setting of the sliding guide hole ensures the accuracy of the moving direction of the rotating screw and the sliding base, improves the adjustment accuracy and reliability of the chain tightening mechanism; realizes the precise tensioning of the metal chain, improves the transmission efficiency, reduces equipment failures, and extends the service life of the equipment.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. Chain guide rail. Through the cooperation of the chain guiding and limiting groove on the guide rail body and the guide rail moving device, it can guide and support the metal chain when the metal chain vibrates or disengages, and attract the metal chain through the electromagnetic attraction device to tighten the metal chain sleeved on the two gear devices, thus achieving chain tensioning. The lubricating device is used to discharge lubricating oil when the metal chain is in contact with the electromagnetic attraction device or the side wall of the chain guiding and limiting groove, so as to reduce the friction and wear of the metal chain. The distance detection device is used to monitor the tension degree of the metal chain in real time, ensure that there is an appropriate gap between the metal chain and the chain guiding and limiting groove and the guide rail moving device, further reduce the direct friction on the metal chain, reduce energy consumption, improve transmission efficiency, and reduce equipment failures and maintenance costs;

[0033] 2. Chain guide rail. The first distance sensor is electrically connected to the first electromagnet assembly, and the third distance sensor is electrically connected to the third electromagnet assembly. The second electromagnet assembly maintains magnetic attraction at the middle position of the first chain segment and the second chain segment. When the metal chain becomes loose and the tension degree decreases, the metal chain will move towards the direction close to the first electromagnet assembly and the third electromagnet assembly under the magnetic attraction of the second electromagnet assembly. When the distance between the metal chain and the first electromagnet assembly is greater than the preset distance value, the first distance sensor triggers the first electromagnet assembly to magnetically attract the metal chain; when the distance between the metal chain and the third electromagnet assembly is greater than the preset distance value, the third distance sensor triggers the third electromagnet assembly to magnetically attract the metal chain. This application ensures that the tension state of the metal chain can be effectively monitored throughout the full length, thereby optimizing the stability and transmission efficiency of the metal chain. At the same time, by monitoring the change in the distance of the metal chain, the attraction force of the electromagnetic attraction device can be adjusted in a timely manner to keep the metal chain in the best tension state;

[0034] 3. Chain tightener device. The rotating screw is in threaded cooperation with the gear device, and the screw drive assembly is electrically connected to the distance detection device. When the distance between the metal chain and the electromagnetic attraction device is less than the minimum preset value, the distance detection device triggers the screw drive assembly, which in turn drives the rotating screw to rotate and drives the gear device to move, further realizing the tensioning of the metal chain. This application not only improves the efficiency and accuracy of metal chain tensioning, but also reduces manual intervention through automatic control, reduces maintenance costs, and at the same time ensures the stability and reliability of the transmission system. Description of the Drawings

[0035] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the chain guide rail of this application.

[0036] Figure 2 is a cross-sectional structural schematic diagram of an embodiment of the chain guide rail of this application.

[0037] Figure 3It is a schematic cross-sectional structure diagram of an embodiment of a chain guide rail and a chain tightener device of the present application.

[0038] Figure 4 It is a schematic three-dimensional structure diagram of an embodiment of the chain tightener device of the present application.

[0039] Explanation of reference numerals:

[0040] 1. Guide rail body; 2. Gear device; 21. Sliding base; 22. Gear body; 3. Metal chain; 31. First chain segment; 32. Second chain segment; 4. Electromagnetic attraction device; 41. First magnetic attraction mechanism; 42. Second magnetic attraction mechanism; 411. First electromagnet assembly; 412. Second electromagnet assembly; 413. Third electromagnet assembly; 5. Lubrication device; 51. First lubrication mechanism; 52. Second lubrication mechanism; 511. First lubrication component; 512. Second lubrication component; 5111. Oil storage tank; 5112. Mechanical pump; 5113. Oil discharge micropores;

[0041] 6. Distance detection device; 61. First distance sensor; 62. Second distance sensor; 63. Third distance sensor; 7. Guide rail moving device; 71. First pressing guide rail; 72. Second pressing guide rail; 711. Guide rail driving component; 712. Moving guide plate; 713. First articulated guide plate; 714. Second articulated guide plate; 7121. Strip-shaped sliding hole; 7131. Guide plate body; 7132. Sliding shaft; 7133. Avoidance groove; 8. Chain guiding and limiting groove; 81. First guiding and limiting groove; 82. Second guiding and limiting groove; 9. Chain tightening mechanism; 91. Chain tightening base; 92. Rotating screw; 93. Screw driving component; 911. Sliding guiding hole. Detailed implementation manners

[0042] The following will further describe the present application in detail with reference to the Figures 1-4 accompanying drawings.

[0043] An embodiment of the present application discloses a chain guide rail and a chain tightener device. Referring to Figure 1 , the chain guide rail includes a guide rail body 1, gear devices 2 provided at both ends of the guide rail body 1, a metal chain 3 sleeved outside the two gear devices 2 and meshing with the two gear devices 2 respectively, an electromagnetic attraction device 4 provided on the guide rail body 1 and located on one side of the metal chain 3, a lubrication device 5, a distance detection device 6 inserted on the electromagnetic attraction device 4, and a guide rail moving device 7 for guiding and supporting the metal chain 3; a chain guiding and limiting groove 8 is provided on the guide rail body 1 along the length direction of the guide rail body 1, and the chain guiding and limiting groove 8 is used for the metal chain 3 to be movably inserted;

[0044] The guide rail moving device 7 is located on one side of the chain guiding and limiting groove 8 and is used to move in a direction closer to or away from the metal chain 3 to adjust the width of the chain guiding and limiting groove 8; the electromagnetic attracting device 4 is located on the other side of the chain guiding and limiting groove 8 and is used to attract the metal chain 3, so that the metal chain 3 moves in a direction closer to the electromagnetic attracting device 4, making the metal chain 3 sleeved on the two gear devices 2 taut, and the metal chain 3 maintains a gap with the chain guiding and limiting groove 8 and the guide rail moving device 7 respectively.

[0045] Through the cooperation of the chain guiding and limiting groove 8 on the guide rail body 1 and the guide rail moving device 7 in this application, the metal chain 3 can be guided and supported when the metal chain 3 vibrates or disengages, and the metal chain 3 is attracted by the electromagnetic attracting device 4 to make the metal chain 3 sleeved on the two gear devices 2 taut, so as to achieve chain tensioning; the lubricating device 5 is used to discharge lubricating oil when the metal chain 3 is in contact with the electromagnetic attracting device 4 or the side wall of the chain guiding and limiting groove 8, so as to reduce the friction and wear of the metal chain 3; the distance detecting device 6 is used to monitor the tension degree of the metal chain 3 in real time, ensure that the metal chain 3 maintains an appropriate gap with the chain guiding and limiting groove 8 and the guide rail moving device 7, further reduces the direct friction on the metal chain 3, reduces energy consumption, improves transmission efficiency, and reduces equipment failures and maintenance costs.

[0046] Furthermore, as Figure 2 shown, the metal chain 3 includes a first chain segment 31 on one side of the gear device 2 and a second chain segment 32 on the other side of the gear device 2;

[0047] The chain guiding and limiting groove 8 includes a first guiding and limiting groove 81 provided on one side of the guide rail body 1 for inserting the first chain segment 31, and a second guiding and limiting groove 82 provided on the other side of the guide rail body 1 for inserting the second chain segment 32; the guide rail moving device 7 is located between the first chain segment 31 and the second chain segment 32.

[0048] The metal chain 3 in this application is composed of a first chain segment 31 and a second chain segment 32, which are respectively inserted into the first guiding and limiting groove 81 and the second guiding and limiting groove 82 on the guide rail body 1 to realize the guiding and limiting of the metal chain 3; the guide rail moving device 7 located between the first chain segment 31 and the second chain segment 32 can adjust the width of the chain guiding and limiting groove 8 as needed to adapt to chains of different sizes and different tensions, improve the stability and reliability of the transmission of the metal chain 3, reduce the wear of the metal chain 3 and the gear device 2, and extend the service life of the equipment.

[0049] Even further, as Figure 2 shown, the electromagnetic attracting device 4 includes a first magnetic attraction mechanism 41 provided on the outer side of the first chain segment 31 and a second magnetic attraction mechanism 42 provided on the outer side of the second chain segment 32;

[0050] The first magnetic attraction mechanism 41 and the second magnetic attraction mechanism 42 both include a first electromagnet assembly 411, a second electromagnet assembly 412, and a third electromagnet assembly 413 arranged along the length direction of the guide rail body 1; the first electromagnet assembly 411 is used to attract one end of the first chain segment 31 and the second chain segment 32, the third electromagnet assembly 413 is used to attract the other end of the first chain segment 31 and the second chain segment 32, and the second electromagnet assembly 412 is used to attract the middle positions of the first chain segment 31 and the second chain segment 32.

[0051] In this application, the first chain segment 31 is magnetically attracted by the first magnetic attraction mechanism 41, and the second chain segment 32 is magnetically attracted by the second magnetic attraction mechanism 42; both the first magnetic attraction mechanism 41 and the second magnetic attraction mechanism 42 include a first electromagnet assembly 411, a second electromagnet assembly 412, and a third electromagnet assembly 413; the first electromagnet assembly 411 and the third electromagnet assembly 413 respectively attract both ends of the first chain segment 31 and the second chain segment 32, and the second electromagnet assembly 412 attracts the middle positions of the first chain segment 31 and the second chain segment 32, so as to achieve the all-round attraction and tensioning of the metal chain 3. This application not only ensures the uniform tensioning of the metal chain 3, but also optimizes the stability and transmission efficiency of the metal chain 3 through the precise adjustment of the electromagnetic force, reduces the negative effects caused by the slack or over-tightening of the metal chain 3, thereby extending the service life of the metal chain 3 and reducing the maintenance cost;

[0052] The first electromagnet assembly 411, the second electromagnet assembly 412, and the third electromagnet assembly 413 are all preferably electromagnets.

[0053] Specifically, as Figure 2 shown, the distance detection device 6 includes a first distance sensor 61 inserted on the first electromagnet assembly 411, a second distance sensor 62 inserted on the second electromagnet assembly 412, and a third distance sensor 63 inserted on the third electromagnet assembly 413; the first distance sensor 61 is used to detect the distance between one end of the first chain segment 31 and the second chain segment 32 and the first electromagnet assembly 411, the third distance sensor 63 is used to detect the distance between the other end of the first chain segment 31 and the second chain segment 32 and the second electromagnet assembly 412, and the second distance sensor 62 is used to detect the distance between the middle positions of the first chain segment 31 and the second chain segment 32 and the third electromagnet assembly 413.

[0054] In this application, the first distance sensor 61 is electrically connected to the first electromagnet assembly 411, the third distance sensor 63 is electrically connected to the third electromagnet assembly 413, and the second electromagnet assembly 412 magnetically attracts the middle position of the first chain segment 31 and the second chain segment 32. When the metal chain 3 becomes loose and the tension decreases, the metal chain 3 will move towards the direction close to the first electromagnet assembly 411 and the third electromagnet assembly 413 under the magnetic attraction of the second electromagnet assembly 412. When the distance between the metal chain 3 and the first electromagnet assembly 411 is greater than the preset distance value, the first distance sensor 61 triggers the first electromagnet assembly 411 to magnetically attract the metal chain 3; when the distance between the metal chain 3 and the third electromagnet assembly 413 is greater than the preset distance value, the third distance sensor 63 triggers the third electromagnet assembly 413 to magnetically attract the metal chain 3;

[0055] This application ensures that the tension state of the metal chain 3 can be effectively monitored throughout its entire length, thereby optimizing the stability and transmission efficiency of the metal chain 3. At the same time, by monitoring the change in the distance of the metal chain 3, the attraction force of the electromagnetic attraction device 4 can be adjusted in a timely manner to keep the metal chain 3 in the best tension state;

[0056] The first distance sensor 61, the second distance sensor 62, and the third distance sensor 63 are all preferably distance detection sensors.

[0057] More specifically, as Figure 2 and Figure 3 shown, the lubrication device 5 includes a first lubrication mechanism 51 provided on the outer side of the first chain segment 31, and a second lubrication mechanism 52 provided on the outer side of the second chain segment 32; both the first lubrication mechanism 51 and the second lubrication mechanism 52 include a first lubrication component 511 provided between the first electromagnet assembly 411 and the second electromagnet assembly 412, and a second lubrication component 512 provided between the second electromagnet assembly 412 and the third electromagnet assembly 413.

[0058] This application lubricates the metal chain 3 through the first lubrication mechanism 51 and the second lubrication mechanism 52. The first lubrication component 511 is located between the first electromagnet assembly 411 and the second electromagnet assembly 412, and the second lubrication component 512 is located between the second electromagnet assembly 412 and the third electromagnet assembly 413; this design can lubricate the metal chain 3 in all directions, reduce the friction and wear between the metal chain 3 and the gear device 2 and the chain guide and limit groove 8 respectively, extend the service life of the metal chain 3, and at the same time reduce energy consumption and maintenance costs, improve the transmission efficiency and the overall reliability of the system.

[0059] In addition, as Figure 3As shown, both the first lubricating assembly 511 and the second lubricating assembly 512 include an oil storage tank 5111 inserted into the guide rail body 1 for storing lubricating oil, and a mechanical pump 5112 communicated with the oil storage tank 5111 and electrically connected to the second distance sensor 62. The guide rail body 1 is provided with an oil drainage micropore 5113 for communicating the oil storage tank 5111 with the chain guiding and limiting groove 8.

[0060] In the present application, the first lubricating assembly 511 and the second lubricating assembly 512 store lubricating oil through the oil storage tank 5111. The mechanical pump 5112 is communicated with the oil storage tank 5111. When the metal chain 3 is in close contact with the side wall of the chain guiding and limiting groove 8 or the distance from the second electromagnet assembly 412 is less than the preset minimum distance value, the second distance sensor 62 triggers the mechanical pump 5112 to start. The mechanical pump 5112 guides the lubricating oil in the oil storage tank 5111 from the oil drainage micropore 5113 on the guide rail body 1 to the chain guiding and limiting groove 8, realizing precise lubrication of the metal chain 3. The present application ensures that the metal chain 3 is continuously and appropriately lubricated during the transmission process, reduces friction and wear, reduces energy consumption, improves transmission efficiency, and extends the service life of the equipment.

[0061] The mechanical pump 5112 is preferably an oil pump.

[0062] And, as Figure 1 and Figure 3 shown, the guide rail moving device 7 includes a first pressing guide rail 71 provided inside the first chain section 31, and a second pressing guide rail 72 provided inside the second chain section 32.

[0063] Both the first pressing guide rail 71 and the second pressing guide rail 72 include a guide rail driving assembly 711 provided on the guide rail body 1 and electrically connected to the second distance sensor 62, a moving guide plate 712 connected to the output end of the guide rail driving assembly 711, a first hinged guide plate 713 with one end slidably connected to the moving guide plate 712 and the other end hinged to the end of the guide rail body 1, and a second hinged guide plate 714. The first hinged guide plate 713 and the second hinged guide plate 714 are respectively located on both sides of the moving guide plate 712.

[0064] When the metal chain 3 vibrates or disengages, the inner side of the first chain segment 31 is guided and supported by the first pressing guide rail 71, and the inner side of the second chain segment 32 is guided and supported by the second pressing guide rail 72; when the metal chain 3 moves towards the direction of the second electromagnet assembly 412, the second distance sensor 62 triggers the guide rail driving assembly 711 to drive the moving guide plate 712 to move towards the direction of the metal chain 3, and the moving guide plate 712 is hinged and guided by the first hinged guide plate 713 and the second hinged guide plate 714. The first hinged guide plate 713 and the second hinged guide plate 714 are respectively located on both sides of the moving guide plate 712 and are hinged to the end of the guide rail body 1, so that the moving guide plate 712 reciprocates on the guide rail body 1 to assist in adjusting the tension of the metal chain 3; this application can automatically adjust the width of the chain guiding and limiting groove 8 according to the tension degree of the metal chain 3 to ensure a preset distance from the metal chain 3; it not only improves the flexibility and controllability of the tensioning process of the metal chain 3, but also optimizes the transmission efficiency and reduces wear by precisely controlling the gap between the metal chain 3 and the guide rail moving device 7, and prolongs the service life of the metal chain 3.

[0065] The guide rail driving assembly 711 is preferably a cylinder.

[0066] Furthermore, as Figure 3 shown, both the first hinged guide plate 713 and the second hinged guide plate 714 include a guide plate body 7131, and a sliding shaft 7132 provided at one end of the guide plate body 7131 close to the moving guide plate 712. An avoidance groove 7133 is also provided at the end of the guide plate body 7131. The sliding shaft 7132 is inserted into the avoidance groove 7133 and is fixedly connected to the guide plate body 7131 at both ends.

[0067] The moving guide plate 712 is provided with a strip-shaped sliding hole 7121 penetrating both side walls of the moving guide plate 712; the sliding shaft 7132 is movably inserted into the strip-shaped sliding hole 7121, and the moving guide plate 712 is movably inserted into the avoidance groove 7133.

[0068] In the present application, the first articulated guide plate 713 and the second articulated guide plate 714 are slidably connected to the movable guide plate 712 by means of a sliding shaft 7132 on the guide plate body 7131 cooperating with a strip-shaped sliding hole 7121 on the movable guide plate 712; the avoidance groove 7133 at the end of the guide plate body 7131 enables the insertion of the movable guide plate 712, increasing the connection stability; the present application enables the first articulated guide plate 713 and the second articulated guide plate 714 to automatically adjust their positions according to the tension degree of the metal chain 3, improving the stability and flexibility of the first articulated guide plate 713 and the second articulated guide plate 714 during movement, ensuring the smooth movement and precise positioning of the first chain segment 31 and the second chain segment 32, thereby improving the operation efficiency and reliability of the entire guide rail moving device 7.

[0069] Furthermore, as Figure 3 and Figure 4 shown, the present application also discloses a chain tightener device, including a chain guide rail, and further including a chain tightening mechanism 9 provided at the end of the guide rail body 1 and located between the guide rail body 1 and the gear device 2; the chain tightening mechanism 9 includes a chain tightening base 91, a rotating screw 92 movably inserted on the chain tightening base 91 and threadedly engaged with the gear device 2, and a screw driving assembly 93 provided on the chain tightening base 91 and electrically connected to the distance detection device 6;

[0070] When the distance between the metal chain 3 and the electromagnetic attraction device 4 is less than the minimum preset value, the distance detection device 6 triggers the screw driving assembly 93 to drive the rotating screw 92 to rotate, and the rotating screw 92 drives the gear device 2 to move away from the other gear device 2, so as to tighten the metal chain 3.

[0071] The chain tightening mechanism 9 of the present application is composed of a chain tightening base 91, a rotating screw 92 and a screw driving assembly 93. The rotating screw 92 is threadedly engaged with the gear device 2, and the screw driving assembly 93 is electrically connected to the distance detection device 6; when the distance between the metal chain 3 and the electromagnetic attraction device 4 is less than the minimum preset value, the distance detection device 6 triggers the screw driving assembly 93, and then drives the rotating screw 92 to rotate, driving the gear device 2 to move, further realizing the tightening of the metal chain 3; the present application not only improves the efficiency and accuracy of the tensioning of the metal chain 3, but also reduces manual intervention through automatic control, reduces the maintenance cost, and at the same time ensures the stability and reliability of the transmission system;

[0072] The screw driving assembly 93 is preferably a motor.

[0073] Specifically, as Figure 4As shown in the figure, a sliding guide hole 911 is provided on the chain tensioning base 91 along the length direction of the chain tensioning base 91. The rotating screw 92 is inserted into the sliding guide hole 911 from the side wall of the chain tensioning base 91 along the length direction of the sliding guide hole 911. The gear device 2 includes a sliding base 21 inserted into the sliding guide hole 911 and threadedly engaged with the rotating screw 92, and a gear body 22 bearing-connected to the sliding base 21.

[0074] The sliding guide hole 911 on the chain tensioning base 91 of the present application is used to guide the moving direction of the rotating screw 92. The rotating screw 92 is threadedly engaged with the sliding base 21. The sliding base 21 is inserted into the sliding guide hole 911 and is bearing-connected to the gear body 22. This design enables the rotating screw 92 to drive the sliding base 21 to move along the length direction of the sliding guide hole 911 when rotating, thereby driving the gear body 22 to move, realizing the tension adjustment of the metal chain 3. The setting of the sliding guide hole 911 ensures the accuracy of the moving direction of the rotating screw 92 and the sliding base 21, improves the adjustment accuracy and reliability of the chain tensioning mechanism 9, realizes the precise tension of the metal chain 3, improves the transmission efficiency, reduces equipment failures, and extends the service life of the equipment.

[0075] The implementation principle of the chain guide rail and the chain tensioner device in the embodiment of the present application is as follows:

[0076] The chain guide rail can guide and support the metal chain 3 when the metal chain 3 vibrates or disengages through the cooperation of the chain guide and limit groove 8 on the guide rail body 1 and the guide rail moving device 7, and attract the metal chain 3 through the electromagnetic attraction device 4, so that the metal chain 3 sleeved on the two gear devices 2 is tightened, thereby realizing chain tensioning. The lubricating device 5 is used to discharge lubricating oil when the metal chain 3 is in contact with the electromagnetic attraction device 4 or the side wall of the chain guide and limit groove 8, so as to reduce the friction and wear of the metal chain 3. The distance detection device 6 is used to monitor the tension degree of the metal chain 3 in real time, ensure that the metal chain 3 maintains an appropriate gap with the chain guide and limit groove 8 and the guide rail moving device 7, further reduces the direct friction on the metal chain 3, reduces energy consumption, improves the transmission efficiency, and reduces equipment failures and maintenance costs.

[0077] Chain guide rail. The first distance sensor 61 is electrically connected to the first electromagnet assembly 411, and the third distance sensor 63 is electrically connected to the third electromagnet assembly 413. The second electromagnet assembly 412 maintains a magnetic attraction at the intermediate position between the first chain segment 31 and the second chain segment 32. When the metal chain 3 becomes loose and the tension decreases, the metal chain 3 will move towards the direction close to the first electromagnet assembly 411 and the third electromagnet assembly 413 under the magnetic attraction of the second electromagnet assembly 412. When the distance between the metal chain 3 and the first electromagnet assembly 411 is greater than the preset distance value, the first distance sensor 61 triggers the first electromagnet assembly 411 to magnetically attract the metal chain 3; when the distance between the metal chain 3 and the third electromagnet assembly 413 is greater than the preset distance value, the third distance sensor 63 triggers the third electromagnet assembly 413 to magnetically attract the metal chain 3. This application ensures that the tension state of the metal chain 3 can be effectively monitored throughout its entire length, thereby optimizing the stability and transmission efficiency of the metal chain 3. At the same time, by monitoring the change in the distance of the metal chain 3, the attraction force of the electromagnetic attraction device 4 can be adjusted in a timely manner to keep the metal chain 3 in the best tension state;

[0078] Chain tightener device. The chain tightening mechanism 9 is composed of a chain tightening base 91, a rotating screw 92, and a screw driving assembly 93. The rotating screw 92 is in threaded cooperation with the gear device 2, and the screw driving assembly 93 is electrically connected to the distance detection device 6. When the distance between the metal chain 3 and the electromagnetic attraction device 4 is less than the minimum preset value, the distance detection device 6 triggers the screw driving assembly 93, which then drives the rotating screw 92 to rotate, driving the gear device 2 to move, further realizing the tensioning of the metal chain 3. This application not only improves the efficiency and accuracy of tensioning the metal chain 3, but also reduces manual intervention through automated control, reduces maintenance costs, and at the same time ensures the stability and reliability of the transmission system.

[0079] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. Chain guide, characterized in that, It includes a guide rail body (1), gear devices (2) provided at both ends of the guide rail body (1), a metal chain (3) sleeved outside the two gear devices (2) and meshing with the two gear devices (2) respectively, an electromagnetic attraction device (4), a lubrication device (5), a distance detection device (6) inserted on the electromagnetic attraction device (4), and a guide rail moving device (7) for guiding and supporting the metal chain (3); a chain guide limiting groove (8) is provided on the guide rail body (1) along the length direction of the guide rail body (1), and the chain guide limiting groove (8) is used for the metal chain (3) to be movably inserted. The guide rail moving device (7) is located on one side of the chain guide limiting groove (8) and is used to move in a direction close to or away from the metal chain (3) to adjust the width of the chain guide limiting groove (8); the electromagnetic attraction device (4) is located on the other side of the chain guide limiting groove (8) and is used to attract the metal chain (3) so that the metal chain (3) moves in a direction close to the electromagnetic attraction device (4), making the metal chain (3) sleeved on the two gear devices (2) tightened, and the metal chain (3) maintains a gap with the chain guide limiting groove (8) and the guide rail moving device (7) respectively. The metal chain (3) includes a first chain segment (31) on one side of the gear device (2) and a second chain segment (32) on the other side of the gear device (2). The chain guide limiting groove (8) includes a first guide limiting groove (81) provided on one side of the guide rail body (1) for the first chain segment (31) to be inserted, and a second guide limiting groove (82) provided on the other side of the guide rail body (1) for the second chain segment (32) to be inserted; the guide rail moving device (7) is located between the first chain segment (31) and the second chain segment (32). The electromagnetic attraction device (4) includes a first magnetic attraction mechanism (41) provided outside the first chain segment (31) and a second magnetic attraction mechanism (42) provided outside the second chain segment (32). Both the first magnetic attraction mechanism (41) and the second magnetic attraction mechanism (42) include a first electromagnet component (411), a second electromagnet component (412), and a third electromagnet component (413) arranged along the length direction of the guide rail body (1); the first electromagnet component (411) is used to attract one end of the first chain segment (31) and the second chain segment (32), the third electromagnet component (413) is used to attract the other end of the first chain segment (31) and the second chain segment (32), and the second electromagnet component (412) is used to attract the middle position of the first chain segment (31) and the second chain segment (32).

2. The chain guide according to claim 1, wherein The distance detection device (6) includes a first distance sensor (61) inserted on the first electromagnet assembly (411), a second distance sensor (62) inserted on the second electromagnet assembly (412), and a third distance sensor (63) inserted on the third electromagnet assembly (413); the first distance sensor (61) is used to detect the distance between one end of the first chain segment (31) and the second chain segment (32) and the first electromagnet assembly (411), the third distance sensor (63) is used to detect the distance between the other end of the first chain segment (31) and the second chain segment (32) and the second electromagnet assembly (412), and the second distance sensor (62) is used to detect the distance between the middle position of the first chain segment (31) and the second chain segment (32) and the third electromagnet assembly (413).

3. The chain guide according to claim 2, characterized in that, The lubrication device (5) includes a first lubrication mechanism (51) provided on the outer side of the first chain segment (31), and a second lubrication mechanism (52) provided on the outer side of the second chain segment (32); both the first lubrication mechanism (51) and the second lubrication mechanism (52) include a first lubrication component (511) provided between the first electromagnet assembly (411) and the second electromagnet assembly (412), and a second lubrication component (512) provided between the second electromagnet assembly (412) and the third electromagnet assembly (413).

4. The chain guide according to claim 3, characterized in that, Both the first lubrication component (511) and the second lubrication component (512) include an oil storage tank (5111) inserted into the guide rail body (1) and used for storing lubricating oil, and a mechanical pump (5112) communicated with the oil storage tank (5111) and electrically connected to the second distance sensor (62), and an oil discharge micropore (5113) for communicating the oil storage tank (5111) with the chain guiding and limiting groove (8) is provided on the guide rail body (1).

5. The chain guide according to claim 2, characterized in that, The guide rail moving device (7) includes a first pressing guide rail (71) provided on the inner side of the first chain segment (31), and a second pressing guide rail (72) provided on the inner side of the second chain segment (32). Both the first pressing guide rail (71) and the second pressing guide rail (72) include a guide rail driving component (711) provided on the guide rail body (1) and electrically connected to the second distance sensor (62), a moving guide plate (712) connected to the output end of the guide rail driving component (711), a first articulated guide plate (713) with one end slidably connected to the moving guide plate (712) and the other end hinged to the end of the guide rail body (1), and a second articulated guide plate (714); the first articulated guide plate (713) and the second articulated guide plate (714) are respectively located on both sides of the moving guide plate (712).

6. The chain guide according to claim 5, characterized in that, Both the first articulated guide plate (713) and the second articulated guide plate (714) include a guide plate body (7131) and a sliding shaft (7132) provided at one end of the guide plate body (7131) close to the moving guide plate (712). An avoidance groove (7133) is further provided at the end of the guide plate body (7131). The sliding shaft (7132) is inserted into the avoidance groove (7133) and fixedly connected to the guide plate body (7131) at both ends. A strip-shaped sliding hole (7121) penetrating through both side walls of the moving guide plate (712) is provided on the moving guide plate (712). The sliding shaft (7132) is movably inserted into the strip-shaped sliding hole (7121), and the moving guide plate (712) is movably inserted into the avoidance groove (7133).

7. Chain tightener device, characterized in that, It includes the chain guide rail according to any one of claims 1 to 6, and further includes a chain tensioning mechanism (9) provided at the end of the guide rail body (1) and located between the guide rail body (1) and the gear device (2). The chain tensioning mechanism (9) includes a chain tensioning base (91), a rotating screw (92) movably inserted on the chain tensioning base (91) and in threaded cooperation with the gear device (2), and a screw driving assembly (93) provided on the chain tensioning base (91) and electrically connected to the distance detection device (6). When the distance between the metal chain (3) and the electromagnetic attraction device (4) is less than the minimum preset value, the distance detection device (6) triggers the screw driving assembly (93) to drive the rotating screw (92) to rotate. The rotating screw (92) drives the gear device (2) to move away from the other gear device (2) to tighten the metal chain (3).

8. The chain tightener device according to claim 7, characterized in that, A sliding guide hole (911) is provided on the chain tensioning base (91) along the length direction of the chain tensioning base (91). The rotating screw (92) is inserted into the sliding guide hole (911) from the side wall of the chain tensioning base (91) along the length direction of the sliding guide hole (911). The gear device (2) includes a sliding base (21) inserted into the sliding guide hole (911) and in threaded cooperation with the rotating screw (92), and a gear body (22) bearing-connected to the sliding base (21).

Images