Screw lifting assembly of screw car unloader

By adopting V-shaped connection and bending deformation structure in the lifting assembly of the screw unloader, the deformation and tear problems of the joint position of the slider and column are solved, and a more stable connection position and a lower maintenance frequency are achieved.

CN119389814APending Publication Date: 2025-02-07HUAINAN TIANJIAAN POWER GENERATION PLANT ANHUI ELECTRIC POWER CO LTD
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Patent Information

Application Number
CN202411355674.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2025-02-07

AI Technical Summary

Technical Problem

During the long-term use and overloading of the lifting components of the spiral unloader, the joint position of the slider and the column is prone to deformation and tear, resulting in uneven lifting height, affecting the stability of the connection position, and increasing the maintenance frequency.

Method used

A spiral lifting assembly of a spiral unloader is designed, using a V-shaped connection and a bending deformation structure. The force at the welding point between the slider and the lifting assembly is reduced by the deformation of the bending deformation structure, and the slider height is judged by observing the deformation. Consistency is convenient for timely adjustment and maintenance.

Benefits of technology

It effectively reduces the stress at the welding of the slider and lifting components, improves the stability of the connection position, reduces the equipment failure rate and maintenance frequency, and improves the service life of the unloader.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a spiral car unloader spiral lifting assembly which comprises a connecting piece, a spiral body is installed in the middle of a connecting plate, the connecting piece comprises a V-shaped connecting part, one end of the V-shaped connecting part is provided with a first connecting part of a first bending deformation structure, and the other end of the V-shaped connecting part is provided with a second connecting part of a second bending deformation structure. The first connecting part is connected with one sliding block, and the second connecting part is connected with the other sliding block. Through the arrangement of the first bending deformation structure and the second bending deformation structure, when the heights of the two sliding blocks connected with the connecting piece are different, the first bending deformation structure and the second bending deformation structure deform, so that the stress at the welding positions of the first connecting part and the sliding blocks is reduced, and meanwhile, the stress at the welding positions of the second connecting part and the sliding blocks is reduced; in addition, technicians in the field can judge whether the heights of the two sliding blocks are consistent or not by observing deformation of the first bending deformation structure and the second bending deformation structure, and workers can conveniently conduct adjustment and maintenance in time.
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Description

Technical Field

[0001] The invention relates to the technical field of material transfer or unloading equipment, and in particular to a screw lifting assembly of a screw unloading machine. Background Art

[0002] The coal required for power generation in power plants is usually unloaded through a screw unloader during the unloading process, such as Figure 1 The unloading machine shown generally includes a spiral body 1, a lifting mechanism 2, a translation mechanism and a frame. The spiral body is installed on the lifting mechanism, and generally the middle part of the spiral body 1 is installed on the lifting assembly. The lifting mechanism 2 is generally provided with two groups, and the two ends of the lifting assembly are connected to the lifting mechanism 2. Generally, the lifting assembly and the slider of the lifting mechanism 2 are welded and fixed by welding. However, it is found that the supporting columns will be deformed after long-term use, and overload unloading often causes the combination of the slider and the column to tear, resulting in uneven lifting heights on both sides of the lifting assembly, which to a certain extent affects the stability of the connection position between the slider and the lifting assembly. During the equipment maintenance process, it is generally necessary to replace the columns, re-weld or reinforce the connection position between the slider and the lifting assembly. However, long-term use will cause its failure rate to be more frequent. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes a screw lifting assembly for a screw unloading machine.

[0004] The present invention proposes a spiral lifting assembly of a spiral unloading machine, including a connecting piece, the middle part of a connecting plate is used to install a spiral body, the two ends of the connecting piece are fixed on a slider, the connecting piece includes a V-shaped connecting part, one end of the V-shaped connecting part is provided with a first connecting part with a first bending deformation structure, the other end of the V-shaped connecting part is provided with a second connecting part with a second bending deformation structure, the first connecting part is connected to one slider, and the second connecting part is connected to another slider. By setting the first bending deformation structure and the second bending deformation structure, when the heights of the two sliders connected to the connecting piece are different, the first bending deformation structure and the second bending deformation structure are deformed to reduce the force at the welding point between the first connecting part and the slider, and at the same time reduce the force at the welding point between the second connecting part and the slider, and the technical personnel in this field can judge whether the heights of the two sliders are consistent by observing the deformation of the first bending deformation structure and the second bending deformation structure, so as to facilitate the staff to make timely adjustments and maintenance.

[0005] As a further optimized solution of the present invention, the first bending deformation structure is a right-angle structure and / or the second bending deformation structure is a right-angle structure.

[0006] As a further optimized solution of the present invention, the elastic modulus of the first bending deformation structure is smaller than the elastic modulus of the V-shaped connecting portion; and / or

[0007] The elastic modulus of the second bending deformation structure is smaller than the elastic modulus of the V-shaped connecting portion.

[0008] As a further optimized solution of the present invention, the inner angle of the V-shaped connecting portion is an obtuse angle.

[0009] As a further optimized solution of the present invention, it also includes a reinforcing rod, which is installed between the two sliders. When the heights of the two sliders are different, the reinforcing rod is provided with a support rod for driving the first bending deformation structure and the second bending deformation structure to deform.

[0010] As a further optimized solution of the present invention, the length of the support rod in the vertical direction is adjustable, the top of the support rod is connected to the reinforcing rod, and the bottom of the support rod is connected to the first bending deformation structure or the second bending deformation structure.

[0011] As a further optimized solution of the present invention, the support rod includes a top rod and a bottom rod sleeved in the top rod, and an elastic member is provided between the top rod and the bottom rod. When the two sliders are at a vertical height and the spiral member is in a working state, the elastic member is deformed to cause the first bending deformation structure and / or the second bending deformation structure to deform.

[0012] As a further optimized solution of the present invention, deformation grooves along the thickness direction are formed on two adjacent surfaces of the first bending deformation structure and / or two adjacent surfaces of the second bending deformation structure.

[0013] As a further optimized solution of the present invention, a reinforcement strip may be provided in the deformation groove, and the elastic modulus of the reinforcement strip is greater than the elastic modulus of the first bending deformation structure or the second bending deformation structure.

[0014] In the present invention, the proposed spiral lifting assembly for a spiral car unloader can reduce the stress at the welding point between the second connecting part and the slider and the stress at the welding point between the first connecting part and the slider by setting the first bending deformation structure and the second bending deformation structure when the heights of the two sliders on the car unloader are different; and technical personnel in this field can judge whether the heights of the two sliders are consistent by observing the deformation of the first bending deformation structure and the second bending deformation structure, so as to facilitate the staff to make timely adjustments and maintenance.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a spiral unloading machine in the prior art;

[0017] Figure 2 It is a schematic diagram of the structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the support rod structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure after the reinforcement strip is installed in the deformation groove of the present invention;

[0020] In the figure: 1. spiral body; 2. lifting mechanism; 3. slider; 4. V-shaped connecting part; 5. first connecting part; 50. first bending deformation structure; 6. second connecting part; 7. second bending deformation structure; 8. reinforcing rod; 9. supporting rod; 90. top rod; 91. bottom rod; 92. elastic member; 10. deformation groove; 11. reinforcement strip. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] like Figure 2-Figure 3 A spiral lifting assembly of a spiral unloading machine shown in the figure includes a connecting piece, the middle part of the connecting plate is used to install the spiral body 1, the two ends of the connecting piece are fixed on the slider 3, the connecting piece includes a V-shaped connecting part 4, the spiral body 1 is installed in the middle part of the V-shaped connecting part 4, one end of the V-shaped connecting part 4 is provided with a first connecting part 5 with a first bending deformation structure 50, and the other end of the V-shaped connecting part 4 is provided with a second connecting part 6 with a second bending deformation structure 7. The first connecting part 5 is connected to a slider 3, and the first connecting part 5 is connected to the slider 3 by welding and screws as in the prior art, and the second connecting part 6 is connected to another slider 3, and the second connecting part 6 is connected to the slider 3 by welding and screws. By setting the first bending deformation structure 50 and the second bending deformation structure 7, when the heights of the two sliders 3 connected to the connecting piece are different, the first bending deformation structure 50 and the second bending deformation structure 7 are deformed to reduce the force at the welding point between the first connecting part 5 and the slider 3, and at the same time reduce the force at the welding point between the second connecting part 6 and the slider 3. Moreover, technical personnel in this field can judge whether the heights of the two sliders 3 are consistent by observing the deformation of the first bending deformation structure 50 and the second bending deformation structure 7, so that the staff can make timely adjustments and maintenance. After adjusting and maintaining the unloading machine to make the two sliders 3 the same height, the first bending deformation structure 50 and the second bending deformation structure 7 are adjusted to the original position.

[0023] In some embodiments, preferably, the first bending deformation structure 50 is a right-angle structure and the second bending deformation structure 7 is a right-angle structure, which is convenient for observing the deformation of the first bending deformation structure 50 and the second bending deformation structure 7, and when the height of the two sliders 3 is adjusted, the first bending deformation structure 50 and the second bending deformation structure 7 are adjusted to their original positions. The first bending deformation structure 50 and the second bending deformation structure 7 can be adjusted to their original positions through the existing internal right-angle iron or external right-angle iron.

[0024] In some embodiments, preferably, the elastic modulus of the first bending deformation structure 50 is smaller than the elastic modulus of the V-shaped connection portion 4; and the elastic modulus of the second bending deformation structure 7 is smaller than the elastic modulus of the V-shaped connection portion 4, that is, when the heights of the two sliders 3 connected to the connecting member are different, the first bending deformation mechanism and the second complete deformation structure are deformed.

[0025] In some embodiments, preferably, the inner angle of the V-shaped connecting portion 4 is an obtuse angle.

[0026] Preferably, on the basis of the above embodiment, it also includes a reinforcing rod 8, both ends of which extend into the slider 3, and the reinforcing rod 8 is installed between the two sliders 3. When the heights of the two sliders 3 are different, the reinforcing rod 8 is provided with a support rod 9 for driving the first bending deformation structure 50 and the second bending deformation structure 7 to deform.

[0027] As a further optimized solution of the present invention, the length of the support rod 9 in the vertical direction is adjustable, the top of the support rod 9 is connected to the reinforcement rod 8, the bottom of the support rod 9 is connected to the first bending deformation structure 50 or the second bending deformation structure 7, at least one support rod 9 is arranged between the horizontal plane of the reinforcement rod 8 and the first bending deformation structure 50, and at least one support rod 9 is arranged between the horizontal plane of the reinforcement rod 8 and the second bending deformation structure 7.

[0028] As a further optimized solution of the present invention, the support rod 9 includes a top rod 90 and a bottom rod 91 sleeved in the top rod 90, an elastic member 92 is arranged between the top rod 90 and the bottom rod 91, the top rod 90 is fixed to the reinforcing rod 8, and the bottom of the bottom rod 91 is connected to the first bending deformation structure 50 or the second bending deformation structure 7. The elasticity can be a spring in the prior art. When the two sliders 3 are at a vertical height and the spiral member is in a working state, the elastic member 92 is deformed to cause the first bending deformation structure 50 and the second bending deformation structure 7 to deform.

[0029] Preferably, in some embodiments, two adjacent surfaces of the first bending deformation structure 50 and two adjacent surfaces of the second bending deformation structure 7 are provided with deformation grooves 10 along their thickness direction, and the deformation grooves 10 are angular structures, which further reduce the elastic modulus of the first bending deformation structure 50 and the second bending deformation structure 7.

[0030] When the deformation of the first bending deformation structure 50 and the second bending deformation structure 7 is observed to be large or the screw unloader has been repaired many times to make the heights of the two sliders 3 consistent (because each time the height of the slider 3 is adjusted, the first bending deformation structure 50 and the second bending deformation structure 7 need to be bent and deformed to the original position with the help of tools), a reinforcement strip 11 can be set in the deformation groove 10, such as Figure 4 As shown, the reinforcing strip 11 is angular, and the reinforcing strip 11 can be fixed on the first bending deformation structure 50 or the second bending deformation structure 7 by welding or clamping, and the elastic modulus of the reinforcing strip 11 is greater than the elastic modulus of the first bending deformation structure 50 or the second bending deformation structure 7. It should be noted that in some embodiments, the deformation grooves 10 on the first bending deformation structure and the second bending deformation structure 7 are provided in multiple groups and are parallel to each other, and the staff can add the number and position of the reinforcing strips 11 according to the actual situation.

[0031] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screw lifting assembly for a screw unloading machine, comprising a connecting piece, the middle part of the connecting plate is used to install a screw body (1), and both ends of the connecting piece are fixed on a slider (3), characterized in that: The connecting member comprises a V-shaped connecting portion (4), one end of the V-shaped connecting portion (4) is provided with a first connecting portion (5) having a first bending deformation structure (50), the other end of the V-shaped connecting portion (4) is provided with a second connecting portion (6) having a second bending deformation structure (7), the first connecting portion (5) is connected to one slider (3), and the second connecting portion (6) is connected to another slider (3).

2. The screw lifting assembly of the screw unloading machine according to claim 1, characterized in that: The first bending deformation structure (50) is a right-angle structure and / or the second bending deformation structure (7) is a right-angle structure.

3. The screw lifting assembly of the screw unloading machine according to claim 1, characterized in that: The elastic modulus of the first bending deformation structure (50) is smaller than the elastic modulus of the V-shaped connecting portion (4); and / or The elastic modulus of the second bending deformation structure (7) is smaller than the elastic modulus of the V-shaped connecting portion (4).

4. The screw lifting assembly of the screw unloading machine according to claim 1, characterized in that: The inner angle of the V-shaped connecting portion (4) is an obtuse angle.

5. The screw lifting assembly of the screw unloading machine according to claim 1, characterized in that: It also includes a reinforcing rod (8), which is installed between the two sliders (3). When the heights of the two sliders (3) are different, the reinforcing rod (8) is provided with a supporting rod (9) for driving the first bending deformation structure (50) and the second bending deformation structure (7) to deform.

6. The screw lifting assembly of the screw unloading machine according to claim 5, characterized in that: The length of the support rod (9) in the vertical direction is adjustable, the top of the support rod (9) is connected to the reinforcing rod (8), and the bottom of the support rod (9) is connected to the first bending deformation structure (50) or the second bending deformation structure (7).

7. The screw lifting assembly of the screw unloading machine according to claim 6, characterized in that: The support rod (9) comprises a top rod (90) and a bottom rod (91) sleeved inside the top rod (90); an elastic member (92) is arranged between the top rod (90) and the bottom rod (91); when the two sliders (3) are at a vertical height and the spiral member is in a working state, the elastic member (92) is deformed to cause the first bending deformation structure (50) and / or the second bending deformation structure (7) to be deformed.

8. The screw lifting assembly of the screw unloading machine according to claim 1, characterized in that: Two adjacent surfaces of the first bending and deformation structure (50) and / or two adjacent surfaces of the second bending and deformation structure (7) are provided with deformation grooves (10) along the thickness direction thereof.

9. The screw lifting assembly of the screw unloading machine according to claim 1, characterized in that: A reinforcement strip (11) may be provided in the deformation groove (10), and the elastic modulus of the reinforcement strip (11) is greater than the elastic modulus of the first bending deformation structure (50) or the second bending deformation structure (7).