Damping rubber sleeve of harvester screen box

Abstract

The utility model relates to the technical field of damping rubber sleeves, and provides a harvester screen box damping rubber sleeve which comprises a first damping sleeve, an outer steel ring and an inner steel ring, the first damping sleeve is arranged between the outer steel ring and the inner steel ring, the outer steel ring and the inner steel ring are coaxially arranged, the two end faces of the outer steel ring coincide with the two end faces of the inner steel ring respectively, and the first damping sleeve is arranged between the outer steel ring and the inner steel ring. A plurality of annular grooves are formed in the peripheral face of the inner steel ring, and each annular groove is provided with a second damping sleeve. According to the technical scheme, the service life of the damping rubber sleeve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of shock-absorbing rubber sleeves, and in particular to a shock-absorbing rubber sleeve for a harvester screen box. Background Art

[0002] Shock-absorbing rubber sleeves are commonly used in harvester screening systems to reduce vibration and noise, and protect the screen box and related components. During the harvesting process, these sleeves effectively absorb vibration and impact, reducing vibration transmission, thereby protecting the screen box and internal screening components from damage while improving screening efficiency. Furthermore, these sleeves reduce the impact of vibration and noise on the machine, improving operator comfort, extending the machine's service life, and increasing operational efficiency.

[0003] Currently, most existing harvester rubber sleeves are made of pure rubber or with a metal frame inside and a rubber frame outside. However, after long-term use, such shock-absorbing rubber sleeves are prone to wear due to friction between vibration and the surface of the connecting parts, thereby reducing the service life of the shock-absorbing rubber sleeves. Utility Model Content

[0004] The utility model provides a shock-absorbing rubber sleeve for a harvester screen box, which increases the service life of the shock-absorbing rubber sleeve.

[0005] The technical solution of the utility model is as follows: a shock-absorbing rubber sleeve for a harvester screen box, comprising a first shock-absorbing sleeve, an outer steel ring, and an inner steel ring, wherein the first shock-absorbing sleeve is arranged between the outer steel ring and the inner steel ring, the outer steel ring and the inner steel ring are coaxially arranged, and the end faces of the outer steel ring and the inner steel ring on the same side are in the same horizontal plane, the outer peripheral surface of the inner steel ring is provided with a plurality of annular grooves, and each of the annular grooves is provided with a second shock-absorbing sleeve.

[0006] Furthermore, the outer circumferences of the inner steel ring and the second shock-absorbing sleeve are both provided with a plurality of protrusions.

[0007] Furthermore, the top of the protrusion is an arc-shaped structure.

[0008] Furthermore, the cross section of the annular groove is an isosceles trapezoidal structure, and the small end of the annular groove faces the first shock-absorbing sleeve, and the outer peripheral surface of the second shock-absorbing sleeve contacts the inner wall of the annular groove.

[0009] Furthermore, the corners of the outer steel ring and the inner steel ring are both chamfered.

[0010] The working principle and beneficial effects of the utility model are as follows:

[0011] 1. The utility model provides an outer steel ring and an inner steel ring, which can enhance the overall structural stability of the shock-absorbing rubber sleeve, prevent wear when subjected to vibration, and increase the service life of the shock-absorbing rubber sleeve.

[0012] 2. The coaxial setting can keep the outer steel ring and the inner steel ring on the same axis, improving the overall stability of the shock-absorbing rubber sleeve and reducing wear and damage caused by misalignment.

[0013] 3. Placing the end faces of the outer steel ring and the inner steel ring on the same side at the same horizontal plane can ensure that the inner and outer steel rings are subjected to more uniform force, reduce wear and damage caused by uneven force, and thus increase the service life of the shock-absorbing rubber sleeve.

[0014] 4. By arranging a second shock-absorbing sleeve in the annular groove, the vibration absorption capacity of the shock-absorbing rubber sleeve can be further increased, thereby improving the shock-absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the utility model;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0019] In the figure: 1, first shock-absorbing sleeve; 101, outer steel ring; 102, inner steel ring; 103, annular groove; 104, second shock-absorbing sleeve; 105, protrusion. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] refer to Figure 1-3 A harvester screen box shock-absorbing rubber sleeve includes a first shock-absorbing sleeve 1, an outer steel ring 101, and an inner steel ring 102. The first shock-absorbing sleeve 1 is arranged between the outer steel ring 101 and the inner steel ring 102. The first shock-absorbing sleeve 1 is connected to the outer steel ring 101 and the inner steel ring 102 by an adhesive. The adhesive is Scotch-Weld TMModel DP8005, this two-component epoxy adhesive has excellent bonding properties and can form strong bonds between rubber and metal surfaces, reducing the possibility of the first shock-absorbing sleeve 1 falling off due to vibration. The outer steel ring 101 and the inner steel ring 102 are coaxially arranged, and the end faces of the outer steel ring 101 and the inner steel ring 102 on the same side are in the same horizontal plane. The outer peripheral surface of the inner steel ring 102 is provided with a plurality of annular grooves 103, and each annular groove 103 is provided with a second shock-absorbing sleeve 104. The first shock-absorbing sleeve 1 and the second shock-absorbing sleeve 104 can be made of rubber material.

[0022] The coaxial arrangement of the outer steel ring 101 and the inner steel ring 102 ensures the structural stability and integrity of the shock-absorbing rubber sleeve. This coaxiality ensures that the outer and inner steel rings 101 and 102 are aligned on the same axis, effectively reducing the risk of wear and damage caused by misalignment. Furthermore, ensuring that the end surfaces of the outer and inner steel rings 101 and 102 on the same side are aligned on the same horizontal plane ensures more uniform force distribution and reduces potential damage from uneven force distribution. Furthermore, the placement of a second shock-absorbing sleeve 104 within the annular groove 103 further enhances the shock-absorbing sleeve's vibration absorption capacity, strengthening its shock absorption effect and thereby extending its service life.

[0023] In order to prevent the first shock-absorbing sleeve 1 from falling off due to vibration after long-term use, a number of protrusions 105 are provided on the outer circumference of the inner steel ring 102 and the second shock-absorbing sleeve 104. The protrusions 105 increase the bonding area between the first shock-absorbing sleeve 1 and the inner steel ring 102 and the second shock-absorbing sleeve 104, thereby improving the bonding strength between the first shock-absorbing sleeve 1 and the inner steel ring 102. This can reduce the phenomenon of the first shock-absorbing sleeve 1 sliding and falling off on the metal surface, thereby improving the stability of the shock-absorbing rubber sleeve during operation.

[0024] At the same time, in order to facilitate the staff to install the first shock-absorbing sleeve 1, the top of the protrusion 105 is made into an arc-shaped structure, because the arc-shaped protrusion 105 will not produce sharp edges when the first shock-absorbing sleeve 1 is installed, reducing the risk of damaging the first shock-absorbing sleeve 1. In addition, the arc-shaped design is also conducive to the first shock-absorbing sleeve 1 to move more smoothly during compression or extrusion, reducing the resistance caused by shape mismatch, making the installation process smoother. The protrusion 105 can be an annular structure or a simple small protrusion 105. In this embodiment, the protrusion 105 with an annular structure is preferred because the protrusion 105 with an annular structure can increase the contact area and improve the stability of the shock-absorbing rubber sleeve during operation.

[0025] In order to facilitate the staff to install the shock-absorbing rubber sleeve, chamfers are set at the corners of the outer steel ring 101 and the inner steel ring 102. The chamfer design can reduce the sharpness of the corners of the outer steel ring 101 and the inner steel ring 102, reducing the risk of damage caused by friction with the connecting parts or tools. At the same time, the chamfer can make the corners smoother and reduce friction with the connecting parts, thereby making the installation process smoother. The chamfer design can reduce installation resistance and improve work efficiency.

[0026] The second shock absorbing sleeve 104 is pressed into the annular groove 103 by the tool, and the second shock absorbing sleeve 104 is stuck in the annular groove 103 because the cross section of the annular groove 103 is an isosceles trapezoidal structure, thereby preventing the second shock absorbing sleeve 104 from falling off and further improving the stability of the shock absorbing rubber sleeve during operation.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shock-absorbing rubber sleeve for a harvester screen box, comprising a first shock-absorbing sleeve (1), characterized in that: The invention also includes an outer steel ring (101) and an inner steel ring (102), wherein the first shock-absorbing sleeve (1) is arranged between the outer steel ring (101) and the inner steel ring (102), the outer steel ring (101) and the inner steel ring (102) are coaxially arranged, and the end faces of the outer steel ring (101) and the inner steel ring (102) on the same side are in the same horizontal plane, and the outer peripheral surface of the inner steel ring (102) is provided with a plurality of annular grooves (103), and each of the annular grooves (103) is provided with a second shock-absorbing sleeve (104).

2. The shock-absorbing rubber sleeve for a harvester screen box according to claim 1, characterized in that: The outer circumferences of the inner steel ring (102) and the second shock-absorbing sleeve (104) are both provided with a plurality of protrusions (105).

3. The shock-absorbing rubber sleeve for a harvester screen box according to claim 2, characterized in that: The top of the protrusion (105) is in an arc-shaped structure.

4. The shock-absorbing rubber sleeve for a harvester screen box according to claim 1, characterized in that: The cross section of the annular groove (103) is an isosceles trapezoidal structure, and the small end of the annular groove (103) faces the first shock-absorbing sleeve (1), and the outer peripheral surface of the second shock-absorbing sleeve (104) contacts the inner wall of the annular groove (103).

5. The shock-absorbing rubber sleeve for a harvester screen box according to claim 1, characterized in that: The corners of the outer steel ring (101) and the inner steel ring (102) are both chamfered.

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