Dustproof and waterproof transmission idle wheel

Abstract

The dustproof and waterproof transmission idle wheel comprises a belt wheel assembly, the belt wheel assembly is composed of a sleeve, flanges and a disc, the flanges are symmetrically arranged on the outer edges of the two ends of the sleeve, and the disc is fixedly connected to the middle of the inner side of the sleeve; a bearing is arranged in the middle of the disc, bearing covers used for fixing the bearing are symmetrically arranged on the outer sides of the two ends of the bearing, and a hollow bearing sleeve used for allowing a rotating shaft to penetrate through is fixed to the inner side of the bearing; the inner sides of the two ends of the sleeve are detachably connected with protective covers used for covering the bearing area, and through holes corresponding to the bearing sleeves are formed in the middles of the protective covers. According to the dustproof and waterproof transmission idle wheel, the two ends of the sleeve are conveniently protected and covered through the arranged protective covers, dust and water are prevented from eroding the area of the bearing, the service life of the bearing and other structures is prolonged, disassembly and maintenance are convenient, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of transmission idler wheels, in particular to a dustproof and waterproof transmission idler wheel. Background Art

[0002] The transmission idler is a commonly used and important component in the transmission mechanism, mainly used to drive the conveyor belt mounted on its outer wall for transmission. At present, the working environment of some transmission idlers is very harsh, with high temperature, high pressure, loud noise, and much dust. They even operate in some very humid environments. Water and dust can easily form mud and enter the transmission parts, thus affecting the transmission efficiency, causing the idler bearing to wear faster and shortening its service life.

[0003] The protection effect of the transmission idler in the prior art is relatively poor, and the end is generally exposed, so dust and moisture can easily invade the area where the bearing is located, thereby affecting the use.

[0004] Therefore, it is necessary to propose a dustproof and waterproof transmission idler wheel to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a dustproof and waterproof transmission idler wheel, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A dustproof and waterproof transmission idler wheel comprises a pulley assembly, wherein the pulley assembly is composed of a sleeve, a flange, and a disc, wherein the flanges are symmetrically arranged at the outer edges of both ends of the sleeve, and the disc is fixedly connected to the inner middle part of the sleeve;

[0008] A bearing is arranged in the middle of the disc, bearing caps for fixing the bearing are symmetrically arranged on the outer sides of both ends of the bearing, and a hollow bearing sleeve for the rotating shaft to pass through is fixed on the inner side of the bearing;

[0009] The inner sides of both ends of the sleeve are detachably connected with protective covers for covering the bearing area, and the middle of the protective cover is provided with a through hole corresponding to the bearing sleeve.

[0010] Preferably, the sleeve and the protective cover are detachably connected via a fixing mechanism, the fixing mechanism comprising limiting rings symmetrically arranged on the inner walls at both ends of the sleeve, sockets symmetrically arranged on the relative inner walls of the ends of the sleeve, mounting grooves symmetrically arranged at the two opposite ends of the periphery of the protective cover, one end of the inner cavity of the mounting groove is movably connected with a first vertebral body, one side of the first vertebral body is fixedly connected with an insertion block, an end of the inner cavity of the mounting groove away from the first vertebral body is movably connected with a slider, an end of the slider close to the first vertebral body is provided with a second vertebral body corresponding to the first vertebral body, a spring is provided on the side of the first vertebral body away from the insertion block, an arc groove connected to the mounting groove is provided on the periphery of one side of the protective cover, a push-pull button for pushing the slider to move is fixedly connected to one side of the slider, and one end of the push-pull button extends to the outside of the protective cover through the arc groove.

[0011] Preferably, the diameter of the protective cover matches the diameter of the limiting ring; the end of the plug away from the first vertebral body extends to the outside of the protective cover, and the part extending to the outside of the protective cover is plug-fitted with the socket.

[0012] Preferably, the second vertebral body cooperates with the inclined surface of the first vertebral body, so that the displacement of the slider drives the overall displacement of the first vertebral body and the insert block through the second vertebral body.

[0013] Preferably, the protective cover and the limiting ring are movably connected via a pre-positioning mechanism, and the pre-positioning mechanism includes a positioning pin fixedly connected to the outward side of the limiting ring, and the periphery of the protective cover is provided with positioning holes corresponding to and matching the positioning pins, and the positioning pins and the positioning holes are movably plugged into and fitted with each other when the protective cover and the limiting ring are in fit.

[0014] Preferably, the bearing cover is fixed to the disc by pins.

[0015] Beneficial effects of the utility model: Compared with the prior art, the utility model provides a dustproof and waterproof transmission idler wheel, which has the following beneficial effects:

[0016] The dustproof and waterproof transmission idler wheel is convenient for protecting and covering both ends of the sleeve through the protective cover, thereby preventing dust and moisture from eroding the bearing area and improving the service life of the bearing and other structures. The protective cover is provided with a through hole corresponding to the bearing sleeve, and the through hole is convenient for adapting to the rotating shaft fixed to the bearing sleeve. The fixed mechanism is convenient for rapid disassembly and assembly of the protective cover, which is convenient for disassembly and maintenance and improves efficiency. The provision of the positioning pin and the positioning hole facilitates pre-positioning of the protective cover when installing, and facilitates the matching of the plug block with the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2This is a schematic diagram of the structure of the utility model when the protective cover and the sleeve are separated;

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 It is a structural schematic diagram of the protective cover of the utility model;

[0021] Figure 5 It is a side view cross-sectional structural diagram of the protective cover of the utility model;

[0022] Figure 6 It is a schematic diagram of the overall cross-sectional structure of the sleeve and the bearing of the utility model;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the sleeve of the utility model;

[0024] Figure 8 It is a structural schematic diagram of the bearing cover of the utility model;

[0025] Fig. 9 It is a structural schematic diagram of the bearing sleeve of the utility model.

[0026] In the figure: 1. sleeve; 2. flange; 3. disc; 4. bearing cover; 5. pin; 6. bearing sleeve; 7. bearing; 8. protective cover; 9. limit ring; 10. positioning pin; 11. socket; 12. through hole; 13. positioning hole; 14. arc groove; 15. push-pull button; 16. insert block; 17. mounting groove; 18. first vertebra; 19. slider; 20. second vertebra; 21. spring. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] like Figure 1-9 As shown, a dustproof and waterproof transmission idler wheel includes a pulley assembly, the pulley assembly is composed of a sleeve 1, a flange 2, and a disc 3, the flange 2 is symmetrically arranged at the outer edges of both ends of the sleeve 1, and the disc 3 is fixedly connected to the inner middle part of the sleeve 1;

[0029] Furthermore, in order to realize the rotation of the transmission idler wheel, a bearing 7 is arranged in the middle of the disc 3, and bearing caps 4 for fixing the bearing 7 are symmetrically arranged on the outer sides of both ends of the bearing 7. The outer periphery of the bearing cap 4 is fixed to the disc 3 by pins 5, and a hollow bearing sleeve 6 for the rotation shaft to be inserted is fixed on the inner side of the bearing 7;

[0030] In order to achieve protection, protective covers 8 for covering the bearing 7 area are detachably connected to the inner sides of both ends of the sleeve 1, and a through hole 12 corresponding to the bearing sleeve 6 is provided in the middle of the protective cover 8.

[0031] Furthermore, the sleeve 1 and the protective cover 8 are detachably connected via a fixing mechanism;

[0032] As a preferred embodiment, the fixing mechanism includes a limiting ring 9 symmetrically arranged on the inner wall at both ends of the sleeve 1, the diameter of the protective cover 8 is adapted to the diameter of the limiting ring 9, and the sockets 11 are symmetrically arranged on the opposite inner walls of the ends of the sleeve 1, and the mounting grooves 17 are symmetrically arranged at the opposite ends of the outer periphery of the protective cover 8. One end of the inner cavity of the mounting groove 17 is movably connected with the first vertebral body 18, and one side of the first vertebral body 18 is fixedly connected with an insert block 16, and the end of the insert block 16 away from the first vertebral body 18 extends to the outside of the protective cover 8, and the part extending to the outside of the protective cover 8 is plugged into and matched with the socket 11, and the end of the inner cavity of the mounting groove 17 away from the first vertebral body 18 is movably connected to the first vertebral body 18. A slider 19 is dynamically connected, and one end of the slider 19 close to the first vertebra 18 is provided with a second vertebra 20 corresponding to the first vertebra 18, and the second vertebra 20 cooperates with the inclined surface of the first vertebra 18, so that the displacement of the slider 19 drives the overall displacement of the first vertebra 18 and the plug block 16 through the second vertebra 20, and a spring 21 is provided on the side of the first vertebra 18 away from the plug block 16, and an arc groove 14 connected to the mounting groove 17 is provided on the periphery of one side of the protective cover 8, and a push-pull button 15 for pushing the slider 19 to move is fixedly connected to one side of the slider 19, and one end of the push-pull button 15 extends to the outside of the protective cover 8 through the arc groove 14.

[0033] Furthermore, the protective cover 8 and the limiting ring 9 are movably connected via a pre-positioning mechanism, which includes a positioning pin 10 fixedly connected to the outward side of the limiting ring 9, and a positioning hole 13 corresponding to and matching the positioning pin 10 is provided on the periphery of the protective cover 8. When the protective cover 8 and the limiting ring 9 are in contact, the positioning pin 10 and the positioning hole 13 are movably plugged into each other.

[0034] It should be noted that the utility model is a dustproof and waterproof transmission idler wheel. When in use, the rotating shaft (not shown in the figure) is fixed to the bearing sleeve 6, and the protective cover 8 is placed on the inner sides of both ends of the sleeve 1, so that the positioning hole 13 corresponds to the positioning pin 10, and the end of the rotating shaft is passed through the through hole 12, and the push-pull button 15 on the side of the protective cover 8 is pushed. The push-pull button 15 drives the slider 19 to move, and the slider 19 drives the second vertebra 20 to cooperate with the inclined surface of the first vertebra 18, and then the first vertebra 18 drives the plug 16 to move and compress the spring 21 until the plug 16 is completely hidden inside the protective cover 8, and then the protective cover 8 is fitted with the limit ring 9, and the positioning pin 10 is aligned with the positioning hole 1 3 plug, at this time the socket 11 and the plug block 16 match, then loosen the push-pull button 15, the spring 21 resets, the first vertebra 18 and the plug block 16 move, the slider 19, the second vertebra 20, and the push-pull button 15 are displaced and reset as a whole, and then one end of the plug block 16 extends to the outside of the protective cover 8 again and enters the socket 11 to achieve plugging, and then the protective cover 8 is fixed, the protective cover 8 is convenient for protecting and covering the two ends of the sleeve 1, avoiding dust and moisture from eroding the area of ​​the bearing 7, and improving the service life of the bearing 7 and other structures, and finally the end of the shaft is rotated and installed to a suitable position, and the belt is set on at least two of the transmission idler wheels for operation.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A dustproof and waterproof transmission idler wheel, comprising a pulley assembly, wherein the pulley assembly is composed of a sleeve (1), a flange (2), and a disc (3), wherein the flange (2) is symmetrically arranged at the outer edges of both ends of the sleeve (1), and the disc (3) is fixedly connected to the inner middle part of the sleeve (1); characterized in that: A bearing (7) is arranged in the middle of the disc (3), and bearing caps (4) for fixing the bearing (7) are symmetrically arranged on the outer sides of both ends of the bearing (7), and a hollow bearing sleeve (6) for inserting a rotating shaft is fixed on the inner side of the bearing (7); protective caps (8) for covering the bearing (7) area are detachably connected to the inner sides of both ends of the sleeve (1), and a through hole (12) corresponding to the bearing sleeve (6) is arranged in the middle of the protective cap (8).

2. A dustproof and waterproof transmission idler wheel according to claim 1, characterized in that: The sleeve (1) and the protective cover (8) are detachably connected via a fixing mechanism, wherein the fixing mechanism comprises a limiting ring (9) symmetrically arranged on the inner walls at both ends of the sleeve (1), and sockets (11) are symmetrically arranged on the opposite inner walls of the ends of the sleeve (1), and mounting grooves (17) are symmetrically arranged at the opposite ends of the outer periphery of the protective cover (8), one end of the inner cavity of the mounting groove (17) is movably connected to the first vertebral body (18), one side of the first vertebral body (18) is fixedly connected to the plug block (16), and the end of the inner cavity of the mounting groove (17) away from the first vertebral body (18) is movably connected to the first vertebral body (18). A slider (19) is connected, and a second vertebra (20) corresponding to the first vertebra (18) is arranged at one end of the slider (19) close to the first vertebra (18), and a spring (21) is arranged at the side of the first vertebra (18) away from the plug block (16). An arc groove (14) connected to the mounting groove (17) is arranged on the periphery of one side of the protective cover (8), and a push-pull button (15) for pushing the slider (19) to move is fixedly connected to one side of the slider (19), and one end of the push-pull button (15) extends to the outside of the protective cover (8) through the arc groove (14).

3. A dustproof and waterproof transmission idler wheel according to claim 2, characterized in that: The diameter of the protective cover (8) is adapted to the diameter of the limiting ring (9); one end of the plug block (16) away from the first vertebral body (18) extends to the outside of the protective cover (8), and the portion extending to the outside of the protective cover (8) is plugged into and matched with the socket (11).

4. The dustproof and waterproof transmission idler wheel according to claim 3, characterized in that: The second vertebral body (20) cooperates with the inclined surface of the first vertebral body (18), so that the displacement of the slider (19) drives the overall displacement of the first vertebral body (18) and the insert block (16) through the second vertebral body (20).

5. The dustproof and waterproof transmission idler wheel according to claim 4, characterized in that: The protective cover (8) and the limiting ring (9) are movably connected via a pre-positioning mechanism, wherein the pre-positioning mechanism comprises a positioning pin (10) fixedly connected to the outward side of the limiting ring (9), and a positioning hole (13) corresponding to and matching the positioning pin (10) is arranged on the periphery of the protective cover (8). When the protective cover (8) and the limiting ring (9) are fitted together, the positioning pin (10) and the positioning hole (13) are movably plugged into each other.

6. The dustproof and waterproof transmission idler wheel according to claim 1, characterized in that: The bearing cover (4) is fixed on the disc (3) via a pin (5).

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