Noise reducing top roller

Abstract

The present application relates to pipe belt conveyor, disclose a kind of noise reduction carrier roller, including mounting seat and roller mechanism (1), both ends of the roller mechanism (1) are installed on the mounting seat by noise reduction mechanism (5), and the roller mechanism (1) is rotatably installed on the noise reduction mechanism (5) by mounting roller shaft (2), the noise reduction mechanism (5) includes sealing plate (701) and noise reduction support plate (703), the noise reduction support plate (703) is formed with protruding structure (4) on the working surface towards the roller mechanism (1), both ends of the roller mechanism (1) are respectively provided with recess structure (102) containing corresponding the protruding structure (4), the sealing plate (701) and the noise reduction support plate (703) are enclosed to form noise reduction cavity (704) filled with noise reduction damping particles (702).The noise reduction carrier roller can improve the damping and noise reduction effect, without expanding the installation space, and does not affect normal use.

Description

TECHNICAL FIELD

[0001] The present application relates to pipe belt conveyors, in particular, to a noise reduction carrier roller. BACKGROUND

[0002] Pipe belt conveyors are suitable for coal, mining, port, power, metallurgy, building materials and grain industries, and can be used to convey materials with strict environmental protection requirements and three-dimensional space bending requirements. The pipe belt conveyor has the advantages of fully enclosed material conveying, no material flying, no influence of natural conditions, no influence on the environment, bending, large inclination angle, and return conveying effect.

[0003] At present, the pipe belt conveyor generally comprises a rack and a conveying belt movably arranged on the rack. Under the action of the carrier rollers arranged in a hexagonal shape at intervals on the rack, the conveying belt is effectively wrapped into a circular tube shape with the edges overlapping each other to convey materials. During the operation of the pipe belt conveyor, the carrier roller and the conveying belt are in rolling support, and the number of carrier rollers is large, which causes a large noise during the operation of the pipe belt conveyor.

[0004] The noise of the pipe belt conveyor during operation can be effectively reduced by vibration reduction and noise reduction of the carrier roller. However, due to the use requirements, the structure of the carrier roller is generally not suitable for excessive changes, and the spacing between the carrier rollers arranged in a hexagonal shape should not be too large, which makes it impossible to install a vibration reduction and noise reduction mechanism on the carrier roller structure.

[0005] Therefore, it is necessary to design a new type of noise reduction carrier roller. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a noise reduction carrier roller which can improve the vibration reduction and noise reduction effect without expanding the installation space and without affecting the normal use.

[0007] In order to achieve the above technical problem, the present application provides a noise reduction carrier roller, which comprises a mounting seat and a roller mechanism. The two ends of the roller mechanism are installed on the mounting seat through a noise reduction mechanism, and the roller mechanism is rotatably installed on the noise reduction mechanism through a mounting roller shaft. The noise reduction mechanism comprises a sealing plate and a noise reduction support plate. The working surface of the noise reduction support plate towards the roller mechanism is formed with a protruding structure. The two ends of the roller mechanism are respectively provided with a groove structure accommodating the corresponding protruding structure. The sealing plate and the noise reduction support plate form a noise reduction cavity filled with noise reduction damping particles.

[0008] Preferably, the cross-sectional area of the protruding structure gradually decreases from the noise reduction mechanism to the roller mechanism, the cross-sectional area of the groove structure gradually decreases from the noise reduction mechanism to the roller mechanism, and the inner wall of the groove structure is provided with a groove support plate.

[0009] Preferably, an installation groove is arranged inside the roller mechanism and communicates with the groove structure, an installation assembly is arranged between the installation roller shaft and the roller mechanism, and the installation assembly comprises a bearing arranged on the installation roller shaft and a roller shaft installation sleeve arranged in the installation groove.

[0010] Specifically, the installation roller shaft is sequentially sleeved with a sealing mechanism, a fixed check ring, a positioning sleeve, a rubber ring, an outer end cover and a limiting check ring from the bearing to the noise reduction mechanism, the sealing mechanism comprises a first sealing ring and a second sealing ring arranged in sequence from the bearing to the noise reduction mechanism, and an inner check ring is arranged between the bearing and an inner end face of the roller shaft installation sleeve.

[0011] More specifically, outer circumferential surfaces of the installation roller shaft are respectively provided with a clamping groove structure for fixing the fixed check ring and the limiting check ring.

[0012] Preferably, a damping pulling mechanism is further arranged, the damping pulling mechanism penetrates through the roller mechanism and is fixedly connected with corresponding installation roller shafts at both ends, the damping pulling mechanism comprises a connecting shaft and a connecting shaft connected in sequence, a damping cavity is arranged inside the connecting shaft, and damping damping particles are filled inside the damping cavity.

[0013] Specifically, the connecting shaft is threadedly connected with the corresponding installation roller shaft, and the connecting shaft is fixedly connected with the corresponding installation roller shaft through a locking nut.

[0014] More specifically, the noise reduction damping particles are spherical damping particles made of metal material, and the damping damping particles are spherical damping particles made of high polymer composite material.

[0015] Preferably, the mounting seat is a bent piece comprising a mounting plate and a fixing plate, the roller mechanism is mounted on the mounting plate, the fixing plate is bent away from the roller mechanism, and a mounting hole is arranged on the fixing plate.

[0016] Specifically, the installation roller shaft and the noise reduction support plate are an integral molded piece, and the installation roller shaft extends into the noise reduction cavity.

[0017] Through the above technical solution, the present application has the following advantages:

[0018] The application provides a noise reduction carrier roller, mainly comprising a mounting base, a roller mechanism and a noise reduction mechanism, the roller mechanism is installed on the mounting base through the noise reduction mechanism, the roller mechanism is used for supporting a transmission belt, the noise reduction mechanism can provide installation support for the roller mechanism and reduce the noise generated by the roller mechanism during operation, specifically, the two ends of the roller mechanism are provided with the noise reduction mechanism, the noise reduction mechanism comprises a sealing plate and a noise reduction support plate, the noise reduction support plate and the sealing plate form a noise reduction cavity, the noise reduction cavity is filled with noise reduction damping particles, the working surface of the noise reduction support plate close to the roller mechanism is formed with a protruding structure, the two ends of the roller mechanism are provided with groove structures capable of accommodating the protruding structure, the existence of the protruding structure can expand the noise reduction effect and the contact area of the noise reduction mechanism and the roller mechanism, and better noise reduction effect is achieved, because of the existence of the protruding structure and the groove structure, the noise reduction effect is ensured, and the installation position or occupied space of the roller mechanism is avoided from being adjusted for noise reduction.

[0019] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the application and constitute a part of the specification, and are used together with the following specific embodiments to explain the application, but do not constitute a limitation on the application. In the drawings:

[0021] Figure 1 is a sectional view of the specific embodiment of the noise reduction carrier roller of the present application;

[0022] Figure 2 is a perspective view of the specific embodiment of the noise reduction carrier roller of the present application;

[0023] Figure 3 is an exploded view of the specific embodiment of the noise reduction carrier roller of the present application;

[0024] Figure 4 is Figure 1 is an enlarged view of A in FIG. 5;

[0025] Figure 5 is a use state diagram of the specific embodiment of the noise reduction carrier roller of the present application.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] DETAILED DESCRIPTION

[0028] The specific embodiments of the present application are described in detail below in conjunction with the accompanying drawings, and it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and the protection scope of the present application is not limited to the following specific embodiments.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "provided", "provided with", "installed", "fitted", "connected", "arranged" should be understood broadly, for example, the connection can be direct connection or indirect connection through intermediate medium, can be fixed connection or detachable connection, or integral connection; can be direct connection or indirect connection through intermediate connecting piece, can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features.

[0031] In the present application, unless otherwise stated, the orientation words such as "inner" and "outer" are defined based on the inner and outer of the corresponding components, in addition, "towards" is defined based on the using direction of the noise reduction top roller, specifically in the drawings provided by the present application, the orientation or position relationship used is based on the orientation or position relationship shown in the drawings, the contact is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the present application; for the orientation terms of the present application, it should be understood in combination with the actual installation state.

[0032] The present application provides a noise reduction top roller, which is mainly used for rolling support of the transmission belt in the pipe belt machine, in addition, it can also provide the pipe belt machine with vibration reduction and noise reduction functions. In combination with Figures 1 to 3 , including a mounting seat and a roller mechanism 1, both ends of the roller mechanism 1 are installed on the mounting seat through a noise reduction mechanism 5, and the roller mechanism 1 is rotatably installed on the noise reduction mechanism 5 through a mounting roller shaft 2, wherein the noise reduction mechanism 5 includes a sealing plate 701 and a noise reduction support plate 703, such as Figure 1 and Figure 3As shown in the figure, the protruding structure 4 is formed on the working surface of the roller mechanism 1, the two ends of the roller mechanism 1 are respectively provided with the groove structure 102 accommodating the corresponding protruding structure 4, and the sealing plate 701 and the noise reduction support plate 703 form the noise reduction cavity 704 filled with the noise reduction damping particles 702. The noise reduction mechanism 5 bears the main noise reduction and vibration reduction function, wherein the sealing plate 701 and the noise reduction support plate 703 in the noise reduction mechanism 5 serve as the support to complete the installation of the roller mechanism 1, and are combined into a container capable of containing the noise reduction damping particles 702, the noise reduction damping particles 702 have the noise reduction capability, so that the noise reduction effect can be achieved without setting additional noise reduction structure, the installation space is saved, and in addition, the protruding structure 4 on the working surface of the noise reduction support plate 703 towards the roller mechanism 1 can extend into the roller mechanism 1, so that the contact area of the noise reduction mechanism 5 and the roller mechanism 1 is increased, and the noise reduction effect is further improved. In use, the gap between the carrier roller devices does not need to be adjusted for noise reduction, and the normal operation of the roller mechanism 1 is not affected.

[0033] Specifically, referring to Figure 4 , the cross-sectional area of the protruding structure 4 gradually decreases from the noise reduction mechanism 5 to the roller mechanism 1, the cross-sectional area of the groove structure 102 gradually decreases from the noise reduction mechanism 5 to the roller mechanism 1, and the groove support plate 1022 is further arranged on the inner wall of the groove mechanism. It can be understood that the specific structure of the protruding structure 4 and the groove structure 102 can be as Figure 3 shown, Figure 3 As a specific embodiment of the present application, the protruding structure 4 and the groove structure 102 adopt a conical frustum structure, which can ensure that the normal operation of the roller mechanism 1 is not affected, and can balance the stress of the noise reduction mechanism 5. The noise reduction mechanism 5 not only needs to achieve noise reduction, but also needs to provide support for the roller mechanism 1, because the stable stress can make the structure of the noise reduction mechanism 5 more stable, and the structure of the noise reduction carrier roller provided by the present application is more stable.

[0034] It should be noted that the inside of the protruding structure 4 is a cavity structure and is communicated with the noise reduction cavity 704, and the inside is also filled with the noise reduction damping particles 702, so that when the protruding structure 4 extends into the groove structure 102, the noise reduction damping particles 702 can reduce noise from the source. Greatly improve the noise reduction effect.

[0035] It should be noted that Figure 3 Only as a specific embodiment of the present application, the structure of the protruding structure 4 and the groove structure 102 can also be a cylindrical mechanism, as long as the protruding structure 4 and the groove structure 102 are matched and do not affect the normal operation of the roller mechanism 1.

[0036] In addition, the groove support plate 1022 is arranged on the inner wall of the groove structure 102 to strengthen the structural strength of the groove structure 102, so as to avoid that the running speed of the roller mechanism 1 is too fast, the inner wall of the groove structure 102 collides with the outer wall of the convex structure 4, and the groove structure 102 is damaged.

[0037] As shown in Figure 1 and Figure 3 As a specific embodiment of the present application, the roller mechanism 1 is further provided with a mounting groove 103, specifically, the mounting groove 103 is arranged at both ends of the roller mechanism 1, the mounting groove 103 can be communicated with the corresponding groove mechanism, the mounting assembly is arranged between the mounting roller shaft 2 and the roller mechanism 1, the mounting assembly includes the bearing 3 and the roller shaft mounting sleeve 1021, the bearing 3 is sleeved on the mounting roller shaft 2, the roller shaft mounting sleeve 1021 is arranged in the mounting groove 103, then the mounting roller shaft 2 provided with the bearing 3 is inserted into the roller shaft mounting sleeve 1021, so that the roller mechanism 1 can rotate around the axis of the mounting roller shaft 2.

[0038] It should be noted that the central axis of the groove structure 102 and the central axis of the mounting groove 103 coincide with the central axis of the roller mechanism 1, which is convenient for installation and is beneficial to the rotation of the roller mechanism 1.

[0039] As shown in Figure 3 In order to improve the mounting stability between the roller mechanism 1 and the noise reduction mechanism 5 in the present application, in order to make the cooperation of the roller mechanism 1 and the noise reduction mechanism 5 better, on the side of the bearing 3 close to the noise reduction mechanism 5, from the bearing 3 to the noise reduction mechanism 5, the sealing mechanism 14, the fixed check ring 15, the positioning sleeve 16, the rubber ring 18, the outer end cover 17 and the limiting check ring 19 are sequentially sleeved on the mounting roller shaft 2, on the other side of the bearing 3, the inner check ring 13 is sleeved on the mounting roller shaft 2, the inner check ring 13 and the fixed check ring 15 are used to avoid the sliding phenomenon of the bearing 3 on the mounting roller shaft 2, the positioning sleeve 16 is used to position the position between the mounting roller shaft 2 and the roller mechanism 1, and the limiting check ring 19 is used for limiting, so as to avoid that the position deviation between the roller mechanism 1 and the mounting roller shaft 2 affects the normal use, wherein the sealing mechanism 14 includes the first sealing ring 1401 and the second sealing ring 1402, the second sealing ring 1402 abuts against the fixed check ring 15. The above various components can provide stability for the installation between the roller mechanism 1 and the mounting roller shaft 2, and the structure is more stable.

[0040] It should be noted that, referring to Figure 3As some specific embodiments of the present application, the positioning sleeve 16 in the present application can be an "L"-shaped positioning sleeve 16, which can press the first sealing ring 1401 into the outer end cover 17 for sealing, and the first sealing ring 1401 and the second sealing ring 1402 can be preferably labyrinth sealing rings, which have more excellent sealing performance. Because the rubber ring 18 is arranged between the outer end cover 17 and the positioning sleeve 16, the elastic rubber ring 18 can be selected, which has a certain deformation amount and can avoid the abrasion between the parts.

[0041] Further, referring to Figure 4 The outer circumferential surface of the rotating roller shaft is also provided with a slotted structure of the fixed positioning stop ring and the limiting stop ring 19, and it can be understood that the fixed positioning stop ring and the limiting stop ring 19 are fixedly sleeved on the mounting roller shaft 2, which can make the positioning of the bearing 3 and other parts more accurate.

[0042] Referring to Figure 3 In order to further improve the noise reduction effect and reduce the vibration of the noise reduction carrier roller in the present application, a damping pulling mechanism is further arranged in the present application, which penetrates the roller mechanism 1 and is fixedly connected with the mounting roller shaft 2 at both ends. The damping pulling mechanism comprises a connecting shaft 801 and a connecting shaft 8011 connected in sequence, the inside of the connecting shaft 801 is provided with a damping cavity 803, and the inside of the damping cavity 803 is filled with damping particles 802. The damping pulling mechanism can prevent the roller mechanism 1 from vibrating too much during rotation and affecting normal work, and the vibration amplitude is small, so the noise caused is also relatively reduced. At the same time, the damping pulling mechanism can connect the noise reduction mechanisms 5 arranged at both ends of the roller mechanism 1 together, thereby enhancing the structural strength of the noise reduction carrier roller in the present application. The damping cavity 803 is arranged in the connecting shaft 801, and the damping particles 802 are filled therein, which effectively reduces the vibration.

[0043] Specifically, as one specific embodiment of the present application, the connecting shaft 801 and the corresponding mounting roller shaft 2 in the present application are connected in a threaded connection manner, and the connecting shaft 8011 and the corresponding mounting roller shaft 2 are connected in a locking nut 10 mounting manner. Further, as shown in Figure 3As shown, the end of the installation roller shaft 2 corresponding to the connecting shaft 801 is provided with a boss structure, the outer peripheral surface of the boss structure is provided with external threads, the end inner wall of the end of the connecting shaft 801 connected with the installation roller shaft 2 is provided with internal threads, and the internal threads are threadedly connected with the external threads; the end of the installation roller shaft 2 corresponding to the connecting shaft 8011 is also provided with a boss structure, but the boss structure is internally provided with a groove and is provided with a positioning hole, and the end of the connecting shaft 8011 is also provided with a matching positioning hole, the connecting shaft 8011 is inserted into the groove, and a locking nut 10 is used for locking and fixing. In this way, the vibration damping traction mechanism can be prevented from shaking due to the roller mechanism 1 during rotation, and the connecting shaft 801 and the installation roller shaft 2 are threadedly connected, which can be caused to fall off due to mixing.

[0044] It should be noted that the above is only a specific embodiment of the vibration damping traction mechanism in the present application, and the vibration damping traction mechanism can also be provided with only the connecting shaft 801, the connecting shaft 801 is internally provided with a damping cavity 803 for filling damping particles 802, the two ends are sealed after filling is completed, and then one end of the connecting shaft 801 is threadedly connected with the corresponding installation roller shaft 2, and the other end is fixedly connected with the corresponding installation roller shaft 2 using the locking nut 10.

[0045] Specifically, the noise reduction damping particles 702 mentioned in the above specific embodiments and specific examples are preferably spherical damping particles made of metal material, and the use of metal material as the noise reduction damping particles 702 has the advantages of simple manufacturing process, low manufacturing cost, and convenient replacement; in addition, the spherical damping particles made of high polymer composite material are preferably used as the damping particles 802, and the damping particles 802 made of high polymer composite material have the advantages of corrosion resistance, aging resistance, long service life, and low production cost.

[0046] Referring to Figure 2 , the mounting seat in the present application is a bent piece including a mounting plate 6 and a fixed plate 11, the roller mechanism 1 is mounted on the mounting plate 6, the fixed plate 11 is bent away from the roller mechanism 1, and a mounting hole 12 is formed in the fixed plate 11. The mounting plate 6 is used for mounting the roller mechanism 1, and the fixed plate 11 is used for mounting the noise reduction carrier roller of the present application to the pipe belt machine. Specifically, as shown in Figure 5 , as a specific use mode of the present application, a plurality of noise reduction carrier rollers provided by the present application are arranged and installed to rollingly support the transmission belt, and the noise reduction and vibration reduction effect can be achieved without adjusting the spacing between the noise reduction carrier rollers.

[0047] In addition, referring to Figure 3, the mounting roller shaft 2 and the noise reduction support plate 703 can be an integrally formed piece, specifically an integrally formed cast piece, and the mounting roller shaft 2 extends into the interior of the noise reduction cavity 704. The advantage of such a design is that it can further improve the overall integrity and structural stability of the noise reduction carrier roller provided by the present application. In addition, the partial extension of the mounting roller shaft 2 into the interior of the noise reduction cavity 704 can facilitate sufficient contact between the mounting roller shaft 2 and the noise reduction damping particles 702, effectively improve the noise reduction and vibration damping effect, and further provide support for the mounting roller shaft 2 to improve the overall strength.

[0048] It should be noted that the structure and mounting relationship between the noise reduction support plate 703, the mounting roller shaft 2 and the sealing plate 701 are not limited to the illustration, and the above is only some specific embodiments of the present application. In the present application, the noise reduction mechanism 5 can also be provided as a separate housing that can be partially inserted into the groove structure 102 provided at both ends of the roller mechanism 1, and the housing can be supported by a support rod or other support member. The mounting roller shaft 2 is used to mount the roller mechanism 1 and the housing.

[0049] The mounting steps of the present application are described in combination with the above specific embodiments and the accompanying drawings. First, the noise reduction mechanism 5 with the noise reduction damping particles 702 made of metal material filled therein is connected and fixed to the mounting seat, and then the limiting stop ring 19, the outer end cover 17, the rubber ring 18, the positioning sleeve 16, the fixed stop ring 15, the sealing mechanism 14, the bearing 3 and the inner stop ring 13 are sequentially sleeved on the shaft, and then the vibration damping pulling mechanism is threadedly connected to the boss at the end of the mounting roller shaft 2. At this time, the vibration damping damping particles 802 made of high polymer compound are filled in the vibration damping pulling mechanism. Then, the roller mechanism 1 is sleeved on the vibration damping pulling mechanism, one end of the roller mechanism 1 is connected to the mounting roller shaft 2, and it is ensured that the roller mechanism 1 can rotate around the axis of the mounting roller shaft 2. Then, the mounting roller shaft 2 of the other noise reduction mechanism 5 is connected to the connecting shaft 8011 of the vibration damping pulling mechanism using the locking nut 10, and then the roller mechanism 1 is connected and then fixedly connected to the mounting seat, completing the installation.

[0050] Referring to Figure 5 As a specific use example of the present application, the staff obtained through experimental testing that after installing the above mounting method and assembling 36 sets of noise reduction carrier rollers, the 36 noise reduction carrier rollers are arranged on 6 workstations of the pipe belt machine. The staff detects the third to fourth workstations by hand-held sound pressure detector, and detects that the sound pressure level in the area is about 65 decibels. At the same time, the staff detects the pipe belt machine without the present application by sound pressure detector, and detects that the sound pressure level in the same area is about 85 decibels. It can be seen that the noise reduction carrier roller provided by the present application can still achieve good noise reduction effect without changing the setting interval of the carrier roller.

[0051] The noise reduction top roller of the present application has simple structure and can achieve good noise reduction and vibration reduction effect without using large installation space.

[0052] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples.

[0053] The preferred embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the specific details in the above-described embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to various simple modifications, and these simple modifications all belong to the protection scope of the present application.

[0054] In addition, it should be noted that each specific technical feature described in the above-described specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will not further describe various possible combinations.

[0055] In addition, various different embodiments of the present application can also be combined in any manner, as long as it does not deviate from the idea of the present application, and it should also be considered as disclosed content of the present application.

Claims

1. A noise reducing top roll characterized by, The application relates to a noise reduction and damping mechanism for a printing machine, which comprises a mounting base, a roller mechanism (1) and a damping pulling mechanism, both ends of the roller mechanism (1) are mounted on the mounting base through a noise reduction mechanism (5), the roller mechanism (1) is rotatably mounted on the noise reduction mechanism (5) through a mounting roller shaft (2), the noise reduction mechanism (5) comprises a sealing plate (701) and a noise reduction support plate (703), a convex structure (4) is formed on the working surface of the roller mechanism (1) and faces the noise reduction support plate (703), both ends of the roller mechanism (1) are respectively provided with a groove structure (102) for accommodating the corresponding convex structure (4), the sealing plate (701) and the noise reduction support plate (703) jointly form a noise reduction cavity (704) which is filled with noise reduction damping particles (702), the damping pulling mechanism penetrates through the roller mechanism (1) and is fixedly connected with the corresponding mounting roller shaft (2) at both ends, the damping pulling mechanism comprises a connecting shaft (8011) and a connecting shaft (8011) which are connected in sequence, a damping cavity (803) is formed in the connecting shaft (801), the damping cavity (803) is filled with damping damping particles (802), the cross-sectional area of the convex structure (4) gradually decreases from the noise reduction mechanism (5) to the roller mechanism (1), the cross-sectional area of the groove structure (102) gradually decreases from the noise reduction mechanism (5) to the roller mechanism (1), and a groove support plate (1022) is arranged on the inner wall of the groove structure (102).

2. The noise reducing roller of claim 1, wherein The roller mechanism (1) is internally provided with a mounting groove (103) which is communicated with the groove structure (102), a mounting assembly is arranged between the mounting roller shaft (2) and the roller mechanism (1), the mounting assembly comprises a bearing (3) which is sleeved on the mounting roller shaft (2) and a roller shaft mounting sleeve (1021) which is arranged in the mounting groove (103).

3. The noise reducing roller of claim 2, wherein, The mounting roller shaft (2) is sequentially sleeved with a sealing mechanism (14), a fixed check ring (15), a positioning sleeve (16), a rubber ring (18), an outer end cover (17) and a limiting check ring (19) from the bearing (3) to the noise reduction mechanism (5), the sealing mechanism (14) comprises a first sealing ring (1401) and a second sealing ring (1402) which are sequentially arranged from the bearing (3) to the noise reduction mechanism (5), and an inner check ring (13) is arranged between the bearing (3) and the inner end face of the roller shaft mounting sleeve (1021).

4. The noise reducing roller of claim 3, wherein A clamping groove structure is arranged on the outer circumferential surface of the mounting roller shaft (2) for mounting and fixing the fixed check ring (15) and the limiting check ring (19).

5. The noise reducing roller of claim 1 wherein, The connecting shaft (8011) is fixedly connected with the corresponding mounting roller shaft (2) through a locking nut (10).

6. The noise reducing roller of claim 1 wherein, The noise reduction damping particles (702) are spherical damping particles made of metal material, and the damping damping particles (802) are spherical damping particles made of high polymer composite material.

7. The noise reducing roller of claim 1 wherein, The mounting seat is a bent piece comprising a mounting plate (6) and a fixing plate (11), the roller mechanism is mounted on the mounting plate (6), the fixing plate (11) is bent away from the roller mechanism (1), and the fixing plate (11) is provided with a mounting hole (12).

8. The noise reducing roller of any one of claims 1 to 7, wherein, The mounting roller shaft (2) and the noise reduction support plate (703) are an integral molded piece, and the mounting roller shaft (2) partially extends into the noise reduction cavity (704).

Images