Anti-abrasion device for cross beam under banana screen

Abstract

The utility model provides an anti-abrasion device for cross beams under a banana screen, which belongs to the field of banana screen equipment and comprises a support, a plurality of cross beams are arranged on the support, protective sleeves are rotatably arranged on the cross beams, screen cloth is arranged above the cross beams, a plurality of grooves are arranged on the inner base surface of the support above the cross beams, buffer components are arranged in the grooves, and the protective sleeves are arranged on the protective sleeves. When the banana screen is used and materials fall on the banana screen, a connecting block connected to the banana screen is stressed and pressed downwards, and when the connecting block is pressed downwards, a buffer spring buffers movement of the connecting block, so that the banana screen is prevented from being in direct contact with a cross beam when being pressed downwards by a heavy object, the cross beam is prevented from being directly impacted greatly, and the service life of the banana screen is prolonged. And after the materials fall through the banana screen, the falling materials firstly fall on the arc-shaped baffle, the arc-shaped baffle connected through the quick release assembly can protect the cross beam to a certain degree, and the damaged arc-shaped baffle can be replaced conveniently.

Description

Technical Field

[0001] This utility model relates to the field of banana sieve equipment, specifically to a wear-resistant device for the crossbeam under the banana sieve. Background Technology

[0002] Banana screens are widely used in the screening of materials such as coal and mines. The undersize beam of a banana screen plays a crucial role in the entire screening process.

[0003] During normal screening operations, a large amount of material continuously flows, tumbles, and falls on the screen surface. This constant movement of material causes frequent impacts and friction on the underside beams. This abrasive effect is exacerbated, especially when the material being screened is hard, has large particles, or sharp edges, such as during coal mining screening where hard particles like gangue are present.

[0004] From a mechanical perspective, the impact force generated by the falling material and the friction force generated by its sliding on the screen surface will cause the material on the surface of the underside beam to gradually peel off. At the same time, under long-term high-frequency vibrating screening environment, the structural stability of the beam is also affected, which may lead to slight deformation and further aggravate wear.

[0005] Existing banana screens often lack sufficiently effective anti-wear measures in their design and use to address this problem. This not only shortens the service life of the under-screen beam and increases equipment maintenance and replacement costs, but frequent maintenance also leads to production interruptions, reduced production efficiency, and seriously affects the continuity and economy of the entire production process. Therefore, developing an anti-wear device for the under-screen beam of a banana screen is of significant practical importance. Utility Model Content

[0006] In view of this, the present invention provides a wear-resistant device for the crossbeam under the screen of a banana screen. By connecting a buffer component to the screen, the device can prevent the material from causing a large impact on the crossbeam when it falls. When the material falls from the screen to below the screen, the arc-shaped baffle can block part of the material, preventing the material from directly contacting the crossbeam. When the other part of the material passes over the arc-shaped baffle and contacts the crossbeam, the protective sleeve installed on the crossbeam can make the material slide down quickly, avoiding excessive contact with the protective sleeve, reducing the replacement frequency of the protective sleeve, and increasing the protection time of the crossbeam.

[0007] To solve the above-mentioned technical problems, this utility model provides a wear-resistant device for the crossbeam of a banana sieve, including a support frame for connecting and supporting the crossbeam and the sieve mesh. Multiple crossbeams are provided on the support frame for supporting the sieve mesh. A protective sleeve is rotatably mounted on each crossbeam to protect it from wear and impact. A sieve mesh is positioned above the crossbeam for screening materials. Multiple grooves are provided on the inner base surface of the support frame above the crossbeam for limiting the connection of connecting blocks. A buffer assembly is provided within each groove to cushion the impact on the sieve mesh, preventing excessive impact on the crossbeam. The sieve mesh is positioned above the buffer assembly.

[0008] The screen is symmetrically provided at both ends with multiple connecting blocks that match the grooves. The connecting blocks are used to connect the screen and the buffer assembly, and the connecting blocks are movably disposed in the grooves.

[0009] The buffer assembly includes a through hole at the bottom of the groove, which is used to place and limit the buffer spring. The buffer spring is provided inside the through hole and is used to buffer the impact caused by the screen. The connecting block is located above the buffer spring.

[0010] Multiple rotary bearings are fitted on the crossbeam. The rotary bearings are used to rotate the protective sleeve on the crossbeam to reduce the contact between the material and the crossbeam. An annular rubber ring is connected to the rotary bearing. The annular rubber ring can buffer the protective sleeve when it is subjected to impact. The protective sleeve is fitted on the annular rubber ring. The surface of the protective sleeve is provided with a wear-resistant rubber layer.

[0011] An arc-shaped baffle is connected below the screen to prevent materials from falling directly onto the protective sleeve, thus protecting the crossbeam and reducing the need for replacing the protective sleeve. A quick-release assembly is provided between the arc-shaped baffle and the screen to facilitate the replacement of the arc-shaped baffle.

[0012] The quick-release assembly includes a first boss connected to the arc-shaped baffle, the first boss being used to connect to the arc-shaped baffle, and a second boss provided below the screen, the second boss being used to connect to the screen, the second boss having a slot matching the first boss, the first boss being engaged in the slot.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0014] 1. During use, when material falls onto the banana screen, the connecting block connected to the banana screen is pressed down by force. When the connecting block is pressed down, the buffer spring moves to buffer the movement of the connecting block, so as to avoid the banana screen directly contacting the crossbeam when it is subjected to the pressure of heavy objects, so as to prevent the crossbeam from being directly impacted.

[0015] 2. When the material falls through the banana screen, it first falls onto the arc-shaped baffle. The arc-shaped baffle, connected by the quick-release assembly, can protect the crossbeam to a certain extent and facilitate the replacement of damaged arc-shaped baffles.

[0016] 3. When falling material does not slide off the side of the arc-shaped baffle and falls onto the crossbeam, the protective sleeve installed on the crossbeam can reduce the contact between the material and the crossbeam when the material falls. When the material comes into contact with the protective sleeve, the protective sleeve rotates to make the material fall quickly, reducing the contact time and reducing the need to replace the protective sleeve. The crossbeam is better protected, and the annular rubber ring on the rotating bearing can buffer the impact on the protective sleeve, further protecting the crossbeam. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the anti-wear device for the underside beam of a banana screen according to this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model from a top left view;

[0019] Figure 3 This is a partial structural diagram of the AA of this utility model;

[0020] Figure 4 This is a partial structural schematic diagram of utility model A;

[0021] Figure 5 This is a partial structural diagram of the present invention BB.

[0022] Explanation of reference numerals in the attached drawings: 100, bracket; 101, crossbeam; 102, protective sleeve; 103, screen; 104, groove; 105, connecting block; 106, rotary bearing; 107, annular rubber ring; 108, arc-shaped baffle; 110, buffer assembly; 111, through hole; 112, buffer spring; 120, quick-release assembly; 121, first boss; 122, second boss; 123, slot. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0024] like Figure 1-4 As shown:

[0025] This embodiment provides a wear-resistant device for the crossbeam under a banana sieve, including a support 100. The support 100 is used to connect and support the crossbeam 101 and the screen 103. The support 100 is provided with multiple crossbeams 101, which support the screen 103. A protective sleeve 102 is rotatably provided on the crossbeam 101 to protect the crossbeam 101 from wear and impact. The screen 103 is provided above the crossbeam 101 for screening materials. The inner base surface of the support 100 above the crossbeam 101 is provided with multiple grooves 104. The grooves 104 are used to limit the connection of the connecting block 105. A buffer assembly 110 is provided in the grooves 104 to buffer the screen 103 when it is impacted, so as to avoid excessive impact on the crossbeam 101. The screen 103 is located above the buffer assembly 110.

[0026] The screen 103 is symmetrically provided with multiple connecting blocks 105 at both ends that match the groove 104. The connecting blocks 105 are used to connect the screen 103 and the buffer assembly 110. The connecting blocks 105 are movably disposed in the groove 104.

[0027] The buffer assembly 110 includes a through hole 111 disposed at the bottom of the groove 104. The through hole 111 is used to place the buffer spring 112 and limit the buffer spring 112. The buffer spring 112 is disposed in the through hole 111 and is used to buffer the impact caused by the screen 103. The connecting block 105 is disposed above the buffer spring 112.

[0028] Multiple rotary bearings 106 are fitted on the crossbeam 101. The rotary bearings 106 are used to rotate the protective sleeve 102 on the crossbeam 101 to reduce the contact between the material and the crossbeam 101. An annular rubber ring 107 is connected to the rotary bearing 106. The annular rubber ring 107 can buffer the protective sleeve 102 when it is subjected to impact. The protective sleeve 102 is fitted on the annular rubber ring 107. The surface of the protective sleeve 102 is provided with a wear-resistant rubber layer.

[0029] An arc-shaped baffle 108 is connected below the screen 103. The arc-shaped baffle 108 is used to prevent materials from falling directly onto the protective sleeve 102, to provide some protection for the crossbeam 101, and to reduce the need for replacement of the protective sleeve 102. A quick-release assembly 120 is provided between the arc-shaped baffle 108 and the screen 103, which facilitates the replacement of the arc-shaped baffle 108.

[0030] The quick-release assembly 120 includes a first protrusion 121 connected to the arc-shaped baffle 108. The first protrusion 121 is fixedly mounted on the arc-shaped baffle 108 by bolts and is used to connect to the arc-shaped baffle 108. A second protrusion 122 is provided below the screen 103. The second protrusion 122 is fixedly mounted on the screen 103 by bolts and is used to connect to the screen 103. The second protrusion 122 is provided with a slot 123 that matches the first protrusion 121, and the first protrusion 121 is engaged in the slot 123.

[0031] Working principle: During use, when material falls onto the banana sieve, the connecting block 105 connected to the banana sieve is pressed down. When the connecting block 105 is pressed down, the buffer spring 112 moves to buffer the movement of the connecting block 105, preventing the banana sieve from directly contacting the crossbeam 101 when subjected to heavy pressure, thus avoiding a large impact on the crossbeam 101. After the material falls through the banana sieve, it first falls onto the arc-shaped baffle 108. The arc-shaped baffle 108, connected by the quick-release assembly 120, can provide some protection for the crossbeam 101 and facilitates repair of any damage to the arc-shaped baffle 108. 8. Replacement is performed when the falling material does not slide off the side of the arc-shaped baffle 108 and falls onto the crossbeam 101. The protective sleeve 102, which is rotatably mounted on the crossbeam 101, can reduce the contact between the material and the crossbeam 101 when the material falls. When the material comes into contact with the protective sleeve 102, the protective sleeve 102 rotates to make the material fall quickly, reducing the contact time and reducing the need for replacement of the protective sleeve 102. This provides better protection for the crossbeam 101. In addition, the annular rubber ring 107 on the rotating bearing 106 can buffer the impact on the protective sleeve 102, further protecting the crossbeam 101.

[0032] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A wear-resistant device for the underside beam of a banana sieve, characterized in that: The device includes a support (100), on which multiple crossbeams (101) are provided. A protective sleeve (102) is rotatably provided on the crossbeams (101). A screen (103) is provided above the crossbeams (101). Multiple grooves (104) are provided on the inner base surface of the support (100) above the crossbeams (101). A buffer assembly (110) is provided in the grooves (104). The screen (103) is located above the buffer assembly (110).

2. The anti-wear device for the underside beam of a banana sieve as described in claim 1, characterized in that: The screen (103) is symmetrically provided with multiple connecting blocks (105) at both ends that match the groove (104), and the connecting blocks (105) are movably disposed in the groove (104).

3. The anti-wear device for the underside beam of a banana sieve as described in claim 2, characterized in that: The buffer assembly (110) includes a through hole (111) disposed at the bottom of the groove (104), a buffer spring (112) is disposed in the through hole (111), and the connecting block (105) is disposed above the buffer spring (112).

4. The anti-wear device for the underside beam of a banana sieve as described in claim 3, characterized in that: Multiple rotary bearings (106) are fitted on the crossbeam (101), and an annular rubber ring (107) is connected to the rotary bearings (106). The protective sleeve (102) is fitted on the annular rubber ring (107).

5. The anti-wear device for the underside beam of a banana sieve as described in claim 4, characterized in that: An arc-shaped baffle (108) is connected below the screen (103), and a quick-release assembly (120) is connected between the arc-shaped baffle (108) and the screen (103).

6. The anti-wear device for the underside beam of a banana sieve as described in claim 5, characterized in that: The quick-release assembly (120) includes a first boss (121) connected to the arc-shaped baffle (108), and a second boss (122) is provided below the screen (103). The second boss (122) is provided with a slot (123) that matches the first boss (121), and the first boss (121) is engaged in the slot (123).

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