Discharging roller speed reducer

Abstract

The utility model provides a discharging roller speed reducing device, which belongs to the technical field of discharging rollers, enhances the sealing effect between a magnetic powder speed reducer body and a rotor frame through the matching of an annular sealing gasket, an annular drying agent and an annular air bag, effectively prevents external moisture from invading, and keeps a magnetic powder environment dry. Therefore, the service life of the magnetic powder is prolonged, the regular replacement time is prolonged, the problem that the service life of an existing magnetic powder speed reducer is short due to the influence of air humidity is remarkably solved, and the longer maintenance period and the more stable running performance are achieved. According to the magnetic powder speed reducer, the annular sealing gasket, the annular drying agent and the annular air bag are matched, the problem that the service life of an existing magnetic powder speed reducer is short due to the influence of air humidity is remarkably solved, and the longer maintenance period and the more stable running performance are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of unwinding rollers, and particularly relates to a deceleration device for an unwinding roller. Background Art

[0002] A cloth inspection machine is a device used to inspect the quality of fabrics, mainly used in the textile industry. When the cloth inspection machine is feeding, the unwinding roller moves accordingly and pauses when it encounters a position that needs to be marked. However, due to its own weight and the weight of the non-woven fabric, the unwinding roller cannot stop immediately and will continue to rotate due to inertia, resulting in overfeeding of the non-woven fabric. Currently, a magnetic powder reducer (magnetic powder motor) is usually connected to the end of the unwinding roller to decelerate it.

[0003] When the magnetic powder reducer is working, magnetic powder is first filled into the rotor, and then the magnetic force of the magnetic powder is adjusted by applying a magnetic field, so that frictional resistance is generated under the action of an external magnetic field, thereby achieving the deceleration effect. When the external magnetic field weakens, the magnetic powder will also lose its magnetic force and return to the free-flowing state, enabling the rotor to accelerate, realizing the alternating transformation of deceleration and acceleration.

[0004] Although the deceleration is stable and precise control can be achieved, due to the influence of factors such as air humidity on the magnetic powder, its service life is short and it needs to be replaced regularly. Summary of the Utility Model

[0005] In view of this, the utility model provides a deceleration device for an unwinding roller, which can cooperate with an annular sealing gasket, an annular desiccant and an annular airbag to enhance the sealing effect between the magnetic powder reducer body and the rotor frame, effectively block the intrusion of external moisture, keep the magnetic powder environment dry, significantly improve the problem of short service life of the existing magnetic powder reducer caused by the influence of air humidity, and achieve a longer maintenance cycle and more stable operation performance.

[0006] To solve the above technical problems, the utility model provides a deceleration device for an unwinding roller, which includes a magnetic powder reducer body and a rotor frame arranged on one side of the magnetic powder reducer body. The relative inner sides of the rotor frame and the magnetic powder reducer body are sequentially provided with an installation groove and an annular groove from outside to inside. Annular sealing gaskets are arranged in the installation grooves, and the two annular sealing gaskets are in contact with each other. An annular airbag is placed between the two annular grooves, which greatly enhances the sealing effect and effectively blocks the intrusion of external moisture.

[0007] Both ends of the annular sealing gasket close to the installation groove where it is located are provided with cavities, and multiple air holes are arranged in the cavities, which increases the elastic performance of the annular sealing gasket.

[0008] It also includes a drying mechanism which is used for drying and adsorbing the invaded moisture. The drying mechanism includes an assembly groove provided at the position between the mounting groove and the annular groove on the body of the magnetic powder reducer. An annular desiccant is provided in the assembly groove, which can extend the service life of the magnetic powder and maintain the stable operation of the equipment.

[0009] It also includes an inflation assembly which is used for inflating the annular airbag. The inflation assembly includes an inert gas tank provided outside the body of the magnetic powder reducer. A transmission pipeline is provided at the air outlet at one end of the inert gas tank close to the body of the magnetic powder reducer. The transmission pipeline sequentially penetrates through the body of the magnetic powder reducer and the annular groove on the body of the magnetic powder reducer and is connected to the air inlet of the annular airbag. A bolt rod is threadedly connected to one end of the inert gas tank away from the body of the magnetic powder reducer. A piston plate is rotatably connected to one end of the bolt rod close to the inert gas tank. The outer arc surface of the piston plate is slidably connected to the inner arc surface of the inert gas tank, which can enhance the sealing effect between the body of the magnetic powder reducer and the rotor frame.

[0010] A pressure gauge is provided at one end of the inert gas tank close to the body of the magnetic powder reducer, which is used for monitoring the gas pressure in the annular airbag.

[0011] The cross-section of the contact part of the two annular gaskets is serrated, which greatly enhances the sealing effect.

[0012] The annular gasket is a rubber annular gasket, which can improve the use effect of the annular gasket.

[0013] The beneficial effects of the above technical solutions of the present utility model are as follows:

[0014] 1. The body of the magnetic powder reducer and the rotor frame are in contact through two annular gaskets to form a sealing structure. The contact surface of the two annular gaskets is designed in a serrated shape, which greatly enhances the sealing effect, effectively blocks the invasion of external moisture. At the same time, the cavity and the air holes cooperate to increase the elastic performance of the annular gasket, and the two annular gaskets in contact are in closer contact. The air holes are used to discharge the gas in the cavity.

[0015] 2. During the use of the magnetic powder reducer, the annular desiccant placed in the assembly groove can continuously adsorb any trace moisture that may penetrate through the annular gasket, keep the magnetic powder environment dry, and thus extend the service life of the magnetic powder and the time of regular replacement.

[0016] 3. After the body of the magnetic powder reducer is fixed to the rotor frame, the relevant operator rotates the bolt rod, which drives the piston plate to move inward along the inert gas tank. The piston plate then fills the inert gas in the inner inert gas tank into the annular airbag through the transmission pipeline. At this time, the annular airbag expands, providing an additional protective barrier for the sealing area and further enhancing the sealing effect between the body of the magnetic powder reducer and the rotor frame. At the same time, the pressure gauge on the gas tank monitors the gas pressure to ensure the safety and effectiveness of the inflation process, significantly improving the problem of short lifespan of the existing magnetic powder reducer caused by the influence of air humidity, and achieving a longer maintenance cycle and more stable operating performance. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the main structure of the discharging roller speed reduction device of the present utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the present utility model;

[0019] Figure 3 It is a schematic enlarged structure diagram at position A of the present utility model;

[0020] Figure 4 It is a schematic enlarged structure diagram at position B of the present utility model.

[0021] Description of the reference numerals: 100, body of the magnetic powder reducer; 200, rotor frame; 300, installation groove; 301, annular gasket; 302, annular groove; 303, annular airbag; 304, cavity; 305, air hole; 400, assembly groove; 401, annular desiccant; 500, inert gas tank; 501, transmission pipeline; 502, bolt rod; 503, piston plate; 600, pressure gauge. Detailed Description of the Embodiment

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will combine the accompanying drawings of the embodiments of the present utility model Figures 1-4 , and clearly and completely describe the technical solutions of the embodiments of the present utility model. Obviously, the described embodiments are some, rather than all, of the embodiments of the present utility model. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0023] As Figures 1-4 shown:

[0024] This embodiment provides a feeding roller deceleration device, which includes a magnetic powder reducer body 100 and a rotor frame 200 arranged on one side of the magnetic powder reducer body 100. Installation grooves 300 and annular grooves 302 are sequentially arranged on the relative inner side surfaces of the rotor frame 200 and the magnetic powder reducer body 100 from outside to inside. Annular gaskets 301 are arranged in the installation grooves 300. The two annular gaskets 301 are in contact with each other. An annular airbag 303 is placed between the two annular grooves 302. The magnetic powder reducer body 100 and the rotor frame 200 are in contact with each other through the two annular gaskets 301 to form a sealing structure. The contact surfaces of the two annular gaskets 301 are designed in a serrated shape, greatly enhancing the sealing effect and effectively blocking the intrusion of external moisture.

[0025] As Figures 2-3 shown, cavities 304 are arranged at one ends of the annular gaskets 301 close to the installation grooves 300 where they are located. A plurality of air holes 305 are arranged in the cavities 304. The cavities 304 and the air holes 305 cooperate to increase the elastic performance of the annular gaskets 301. The two annular gaskets 301 in contact are in closer contact with each other. The air holes 305 are used to discharge the gas in the cavities 304.

[0026] As Figures 2-3 shown, it further includes a drying mechanism, which is used for drying and adsorbing the intruded moisture. The drying mechanism includes an assembly groove 400 arranged at the position between the installation groove 300 and the annular groove 302 on the magnetic powder reducer body 100. A ring-shaped desiccant 401 is arranged in the assembly groove 400. The ring-shaped desiccant 401 arranged in the assembly groove 400 can continuously adsorb any trace moisture that may penetrate through the annular gasket 301, keep the magnetic powder environment dry, thereby prolonging the service life of the magnetic powder and the time of regular replacement.

[0027] As Figures 1-4As shown, it further includes an inflation assembly for inflating the annular airbag 303. The inflation assembly includes an inert gas tank 500 disposed outside the magnetic particle reducer body 100. The inert gas tank 500 stores inert gas. At the air outlet of the end of the inert gas tank 500 close to the magnetic particle reducer body 100, there is a transmission pipeline 501 for transporting the gas in the inert gas tank 500 into the annular airbag 303. The transmission pipeline 501 sequentially penetrates the magnetic particle reducer body 100 and the annular groove 302 on the magnetic particle reducer body 100 and is connected to the air inlet of the annular airbag 303. At the end of the inert gas tank 500 far from the magnetic particle reducer body 100, there is a bolt rod 502 threadedly connected. At the end of the inert gas tank 500 far from the magnetic particle reducer body 100, there is a threaded hole threadedly connected to the bolt rod 502. At the end of the bolt rod 502 close to the inert gas tank 500, there is a piston plate 503 rotatably connected. The piston plate 503 is used to compress the inert gas, causing the annular airbag 303 to expand, and then filling and sealing the periphery of the annular airbag 303. The outer arc surface of the piston plate 503 is slidably connected to the inner arc surface of the inert gas tank 500.

[0028] Rotate the bolt rod 502, and the bolt rod 502 drives the piston plate 503 to move inward along the inert gas tank 500. The piston plate 503 then fills the inert gas in the inner inert gas tank 500 into the annular airbag 303 through the transmission pipeline 501. At this time, the annular airbag 303 expands, providing an additional protective barrier for the sealed area and further enhancing the sealing effect between the magnetic particle reducer body 100 and the rotor frame 200.

[0029] As Figures 1-4 shown, at the end of the inert gas tank 500 close to the magnetic particle reducer body 100, there is a pressure gauge 600 for monitoring the gas pressure in the annular airbag 303 to ensure the effective use of the annular airbag 303.

[0030] As Figures 2-3 shown, the cross-section at the contact of the two annular gaskets 301 is serrated. The contact surface of the two annular gaskets 301 is designed with serrations, greatly enhancing the sealing effect.

[0031] As Figures 2-3 shown, the annular gasket 301 is a rubber annular gasket, and the use effect of the annular gasket 301 is improved by using the rubber material.

[0032] The working principle of the feeding roller speed reduction device provided by the utility model is as follows: Between the magnetic powder reducer body 100 and the rotor frame 200, they are in contact through two annular gaskets 301 to form a sealing structure. The contact surfaces of the two annular gaskets 301 are designed in a serrated shape, greatly enhancing the sealing effect and effectively blocking the intrusion of external moisture. At the same time, the cavity 304 and the air holes 305 cooperate to increase the elastic performance of the annular gasket 301, making the contact between the two annular gaskets 301 in contact tighter. The air holes 305 are used to discharge the gas in the cavity 304. During the use of the magnetic powder reducer, the annular desiccant 401 placed in the assembly groove 400 can continuously adsorb any trace moisture that may enter through the annular gasket 301, keeping the magnetic powder environment dry, thereby extending the service life of the magnetic powder and the time of regular replacement. After the magnetic powder reducer body 100 and the rotor frame 200 are fixed, the relevant operator rotates the bolt rod 502, and the bolt rod 502 drives the piston plate 503 to move inward along the inert gas tank 500. The piston plate 503 then fills the inert gas in the inner inert gas tank 500 into the annular airbag 303 through the transmission pipeline 501. At this time, the annular airbag 303 expands, providing an additional protective barrier for the sealed area and further enhancing the sealing effect between the magnetic powder reducer body 100 and the rotor frame 200. At the same time, the pressure gauge 600 on the gas tank monitors the gas pressure to ensure the safety and effectiveness of the inflation process, significantly improving the problem of short service life of the existing magnetic powder reducer caused by the influence of air humidity, and achieving a longer maintenance cycle and more stable operating performance.

[0033] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle described in the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. Feeding roller deceleration device, characterized in that: It includes a magnetic powder reducer body (100) and a rotor frame (200) arranged on one side of the magnetic powder reducer body (100). An installation groove (300) and an annular groove (302) are sequentially arranged on the relative inner side surfaces of the rotor frame (200) and the magnetic powder reducer body (100) from outside to inside. An annular gasket (301) is arranged in each of the installation grooves (300). The two annular gaskets (301) are in contact with each other, and an annular airbag (303) is placed between the two annular grooves (302).

2. The feeding roller deceleration device according to claim 1, wherein: One end of each of the annular gaskets (301) close to the installation groove (300) where it is located is provided with a cavity (304), and a plurality of air holes (305) are arranged in each of the cavities (304).

3. The discharging roller deceleration device according to claim 1, characterized in that: It further includes a drying mechanism which is used for drying and adsorbing the invaded moisture. The drying mechanism includes an assembly groove (400) arranged at the position between the installation groove (300) and the annular groove (302) on the magnetic powder reducer body (100), and an annular desiccant (401) is arranged in the assembly groove (400).

4. The discharging roller speed reduction device according to claim 1, characterized in that: It further includes an inflation assembly which is used for inflating the annular airbag (303). The inflation assembly includes an inert gas tank (500) arranged outside the magnetic powder reducer body (100). A transmission pipeline (501) is arranged at the air outlet at one end of the inert gas tank (500) close to the magnetic powder reducer body (100). The transmission pipeline (501) sequentially penetrates through the magnetic powder reducer body (100) and the annular groove (302) on the magnetic powder reducer body (100) and is communicated with the air inlet of the annular airbag (303). A bolt rod (502) is threadedly connected to one end of the inert gas tank (500) far from the magnetic powder reducer body (100). A piston plate (503) is rotatably connected to one end of the bolt rod (502) close to the inert gas tank (500). The outer arc surface of the piston plate (503) is slidably connected to the inner arc surface of the inert gas tank (500).

5. The discharging roller speed reduction device according to claim 4, characterized in that: A pressure gauge (600) is arranged at one end of the inert gas tank (500) close to the magnetic powder reducer body (100).

6. The discharging roller deceleration device according to claim 1, characterized in that: The cross section at the contact position of the two annular gaskets (301) is serrated.

7. The feeding roller deceleration device according to claim 1, characterized in that: The annular gasket (301) is a rubber annular gasket.

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