Two-split type bucket elevator chain wheel

Abstract

The utility model relates to a two-split type bucket elevator chain wheel. The two-split type bucket elevator chain wheel comprises a chain wheel base body piece and a chain wheel tooth insert. A chain wheel tooth insert is detachably installed on the outer periphery of the chain wheel base body part, and the lower end of the chain wheel tooth insert can be embedded in the chain wheel base body part. According to the scheme, the two-split type bucket elevator chain wheel is formed by assembling the chain wheel tooth insert and the chain wheel base body part, the chain wheel tooth insert and the tooth sleeve are detachably connected, when the chain wheel tooth insert is abraded or damaged, the whole chain wheel tooth insert does not need to be replaced, only abraded parts need to be updated, and the maintenance cost is greatly reduced; moreover, the hardness of a wear part of the chain wheel is improved, the service life of the chain wheel is prolonged, vexous disassembly and assembly operations are avoided, and troubleshooting is simple and efficient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chain wheels, in particular to a two-part bucket elevator chain wheel. BACKGROUND

[0002] The conventional bucket elevator chain wheel is installed on the transmission shaft as a whole, the reduction motor drives the chain wheel through the transmission shaft, the chain wheel rotates to drag the chain, thereby driving the chain bucket to lift. The chain and the chain wheel tooth are purely metal meshing, which is prone to wear. The chain wheel tooth is continuously worn with the use time, and when the wear reaches an abnormal running state and produces an abnormal sound, the chain wheel needs to be replaced.

[0003] The current chain wheel wear part has low hardness and is a whole, so that the chain wheel can only be replaced as a whole, causing great resource waste. When replacing, the reduction motor is usually removed, the chain bucket is disassembled, the transmission shaft and the old chain wheel are disassembled, the new chain wheel is installed, and then the bucket elevator is reassembled. However, the bucket elevator is generally 10-30 meters high, and it is difficult to hoist when disassembling and assembling the bucket elevator chain wheel. During the whole process of disassembly, reassembly and hoisting, many construction tools need to be used, the maintenance time is long, the maintenance cost is high, and the production efficiency of the factory is seriously affected. CONTENT OF THE UTILITY MODEL

[0004] To solve or partially solve the problems in the related art, the present application provides a two-part bucket elevator chain wheel, aiming to solve the problem that the chain wheel can only be replaced as a whole when worn, and the maintenance time is long and the maintenance cost is high.

[0005] The first aspect of the present application provides a two-part bucket elevator chain wheel, comprising:

[0006] a chain wheel tooth insert, a chain wheel base and a key pin;

[0007] The chain wheel tooth insert is detachably installed on the outer periphery of the chain wheel base, and the lower end of the chain wheel tooth insert is embedded in the chain wheel base;

[0008] The chain wheel base is uniformly provided with tooth sleeves at equal intervals on the outer side, the tooth sleeve spacing corresponds to the bucket elevator chain, the tooth sleeve is a concave groove, and the tooth sleeve is provided with a key pin hole; the center position of the chain wheel base is provided with a transmission shaft installation slot hole for quickly disassembling the chain wheel base;

[0009] The chain wheel tooth insert is a trapezoidal block, the upper end of the chain wheel tooth insert is engaged with the chain wheel link, and the bottom of the chain wheel tooth insert is inwardly retracted, so that the bottom of the chain wheel tooth insert matches the concave groove of the tooth sleeve of the chain wheel base;

[0010] The chain wheel tooth insert is provided with a key pin hole, which is symmetrical with the key pin hole on the chain wheel base during installation. After the chain wheel tooth insert is embedded in the chain wheel base, the tooth sleeve of the chain wheel base is heated tooth by tooth with a gas welding gun to realize tight fitting installation, the key pin is inserted, and further fixation is performed.

[0011] Optionally, in some embodiments, the sprocket tooth insert is composed of two trapezoidal platforms, the lower trapezoidal platform has the same length and width as the tooth sleeve groove of the sprocket base, and the upper and lower trapezoidal platforms are connected at the same angle, and the front and rear sides of the upper and lower trapezoidal platforms are chamfered to facilitate the gas welding of the sprocket tooth insert after being inserted into the sprocket base.

[0012] The top of the upper trapezoidal platform of the sprocket tooth insert is chamfered to facilitate engagement with the bucket elevator chain.

[0013] Optionally, in some embodiments, the sprocket base is made of 45# steel, and the sprocket tooth insert is made of cast steel and heat treated to increase the hardness to above HRC60.

[0014] The application provides a two-part bucket elevator sprocket installation method, which is applied to a two-part bucket elevator sprocket and includes the following steps:

[0015] The sprocket tooth insert is inserted into the sprocket base by using a gas welding gun to heat the insertion end of the sprocket base, and the installation is completed tooth by tooth, and the tight fit installation is completed by heat treatment, and the key pin is installed.

[0016] The assembled sprocket is installed on the transmission shaft, and the chain is hoisted and installed on the sprocket.

[0017] During the two-part sprocket wear detection process, the chain on the bucket elevator sprocket is rotated to the maintenance position, the severely worn sprocket teeth are detected, the fixing key pin on the sprocket tooth insert is removed, the sprocket base insertion area is heated by gas welding, the sprocket tooth insert is removed, and a new sprocket tooth insert is installed.

[0018] Optionally, in some embodiments of the second aspect, rotating the chain on the bucket elevator sprocket to the maintenance position to detect the severely worn sprocket teeth includes:

[0019] The next tooth is rotated to the maintenance position by rotating the sprocket, the wear condition of the sprocket tooth insert is observed, and if the sprocket tooth insert is severely worn and not stressed, it is replaced.

[0020] The above operation is repeated until the detection of all sprocket tooth inserts is completed.

[0021] The technical solution provided by the application can include the following beneficial effects:

[0022] The two-part bucket elevator chain wheel is assembled by a chain wheel tooth insert and a chain wheel base, the chain wheel tooth insert and the tooth sleeve are detachably connected, when the chain wheel tooth insert is worn or damaged, only the worn part needs to be updated, the maintenance cost is greatly reduced, the hardness of the chain wheel wear part is improved, the service life of the chain wheel is prolonged, the troublesome disassembly and assembly operation is avoided, and the fault maintenance is simple and efficient.

[0023] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the figures, and in which:

[0025] Figure 1 is a structural schematic diagram of the two-part bucket elevator chain wheel shown in the embodiments of the present application;

[0026] Figure 2 is a sectional view schematic diagram of the two-part bucket elevator chain wheel shown in the embodiments of the present application;

[0027] Figure 3 is a schematic diagram of the chain wheel base of the two-part bucket elevator chain wheel shown in the embodiments of the present application;

[0028] Figure 4 is a schematic diagram of the chain wheel tooth insert of the two-part bucket elevator chain wheel shown in the embodiments of the present application.

[0029] Reference signs: 1-chain wheel tooth insert, 2-chain wheel base, 3-key pin. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0031] It should be understood that, although the terms "first", "second", "third", etc. can be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between 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.

[0034] The hardness of the current sprocket wear part is not high, and it is an integral whole, which can only be replaced as a whole, causing great waste of resources, and when replacing, the reduction motor is usually removed, the chain bucket is removed, the transmission shaft and the old sprocket are removed, the new sprocket is installed, and then the bucket elevator is reinstalled. The bucket elevator is generally 10-30 meters high, and it is difficult to hoist when disassembling and assembling the sprocket of the bucket elevator. During the whole process of disassembly, reinstallation and hoisting, many construction tools are needed, the maintenance time is long, the maintenance cost is high, and the production efficiency of the factory is seriously affected.

[0035] In view of the above problems, the two-part bucket elevator sprocket provided by the embodiments of the present application is assembled by a sprocket tooth inlay piece and a sprocket base piece. The sprocket tooth inlay piece and the tooth sleeve are detachably connected. When the sprocket tooth inlay piece is worn or damaged, it does not need to be replaced as a whole, but only needs to update the worn parts, which greatly reduces the maintenance cost. The hardness of the sprocket wear part is improved, the service life of the sprocket is prolonged, and the troublesome disassembly and assembly operation is avoided, so that the fault maintenance is simple and efficient.

[0036] The technical solutions of the embodiments of the present application are described in detail below with reference to the drawings.

[0037] Figure 1 is a structural schematic diagram of a two-part bucket elevator chain wheel shown in the embodiments of the present application.

[0038] Referring to Figure 1 A two-part bucket elevator chain wheel comprises:

[0039] a chain wheel tooth insert 1, a chain wheel base member 2, and a key pin 3;

[0040] The chain wheel tooth insert 1 is detachably mounted on the outer periphery of the chain wheel base member 2, and the lower end of the chain wheel tooth insert 1 is insertable into the chain wheel base member 2;

[0041] The chain wheel base member 2 is cast from 45# steel, and the chain wheel base member 2 is uniformly provided with tooth sleeves at equal intervals on the outer side, the tooth sleeve spacing corresponds to the bucket elevator chain, the tooth sleeve is a concave groove, and the tooth sleeve is provided with a key pin hole; the chain wheel base member 2 is provided with a transmission shaft mounting slot hole at the center position, for quick disassembly and assembly of the chain wheel base member 2.

[0042] The chain wheel tooth insert 1 is composed of two trapezoidal platforms, the length and width of the lower trapezoidal platform are the same as the concave groove of the tooth sleeve of the chain wheel base member 2, the upper and lower trapezoidal platforms are connected at the side edges and have the same inclination angle, the front and rear sides of the upper and lower trapezoidal platforms are chamfered for facilitating the gas welding treatment after the chain wheel tooth insert 1 is inserted into the chain wheel base member 2, and the top of the upper trapezoidal platform is rounded for facilitating the meshing with the bucket elevator chain. The chain wheel tooth insert 1 is provided with a key pin hole at the bottom, which is symmetrical to the key pin hole on the chain wheel base member 2 during installation. The chain wheel tooth insert 1 is processed from cast steel and is subjected to heat treatment to increase the hardness to above HRC60 (i.e. the test load is 1471.1N), so as to increase the hardness of the wear part and prolong the service life of the chain wheel.

[0043] After the chain wheel tooth insert 1 is inserted into the chain wheel base member 2, the tooth sleeves of the chain wheel base member 2 are heated tooth by tooth by using a gas welding gun, the tight fitting installation is realized, the key pin 3 is inserted and fixed, and further fixation is performed.

[0044] Corresponding to the foregoing application function implementation device embodiment, the present application further provides a two-part bucket elevator chain wheel installation method and corresponding embodiments, comprising:

[0045] The embedded end of the chain wheel base member is heated tooth by tooth by using a gas welding gun, the chain wheel tooth insert is embedded into the chain wheel base member, the installation is completed tooth by tooth, the tight fitting installation is completed by heat treatment, and the key pin is installed for fixation;

[0046] The assembled chain wheel is installed on the transmission shaft, and the chain is hoisted and installed on the chain wheel;

[0047] In the process of detecting the wear of the two-part chain wheel, the chain on the chain wheel of the rotary bucket elevator is rotated to a maintenance position, the chain wheel tooth with serious wear and no force is detected, the fixing key pin on the chain wheel tooth insert is disassembled, the chain wheel base insert area is heated by gas welding, the chain wheel tooth insert is disassembled, and a new chain wheel tooth insert is installed.

[0048] In the process of detecting the wear of the two-part chain wheel, the chain on the chain wheel of the rotary bucket elevator is rotated to a maintenance position, the chain wheel tooth with serious wear and no force is detected, the fixing key pin on the chain wheel tooth insert is disassembled, the chain wheel base insert area is heated by gas welding, the chain wheel tooth insert is disassembled, and a new chain wheel tooth insert is installed.

[0049] The next tooth is rotated to the maintenance position by the rotating chain wheel, the wear condition of the chain wheel tooth insert is observed, if the chain wheel tooth insert is seriously worn and has no force, it is replaced; the above operation is repeated until the detection of all chain wheel tooth inserts is completed.

[0050] The method greatly reduces the maintenance cost of the two-part bucket elevator, reduces the cost of replacing the chain wheel, saves the maintenance period from 2-3 days to 3 hours, reduces the number of workers from 6-8 to 2, and does not need a crane or hoisting tool to cooperate, greatly reduces the difficulty of maintenance, and eliminates the skill requirements of assembly precision and dynamic equipment adjustment.

[0051] The above has described the embodiments of the present application, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical applications, or improvements to the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A two-part bucket elevator sprocket, characterized in that, include: Sprocket tooth insert (1), sprocket base (2), and key pin (3); A sprocket tooth insert (1) is detachably mounted on the outer periphery of the sprocket base component (2), and the lower end of the sprocket tooth insert (1) can be inserted into the sprocket base component (2); The outer side of the sprocket base component (2) is provided with toothed sleeves at equal intervals, the toothed sleeve spacing is corresponding to the bucket elevator chain, the toothed sleeve is a concave groove, and a key pin hole is provided on the toothed sleeve; a drive shaft mounting slot is provided at the center of the sprocket base component (2) for quick assembly and disassembly of the sprocket base component (2). The sprocket tooth insert (1) is a trapezoidal block. The upper end of the sprocket tooth insert (1) meshes with the sprocket chain link. The bottom of the sprocket tooth insert (1) shrinks inward so that the bottom of the sprocket tooth insert (1) matches the tooth sleeve concave groove of the sprocket base part (2). The sprocket tooth insert (1) has a key hole, which is symmetrical to the key hole on the sprocket base (2) during installation. After the sprocket tooth insert (1) is inserted into the sprocket base (2), the tooth sleeve of the sprocket base (2) is heated tooth by tooth with a gas welding gun to achieve tight fit installation. The key (3) is then inserted for further fixation.

2. The split-type bucket elevator sprocket according to claim 1, characterized in that: The sprocket tooth insert (1) consists of two trapezoidal platforms, upper and lower. The length and width of the lower trapezoidal platform are the same as the tooth sleeve groove of the sprocket base (2), and the two trapezoidal platforms are connected on the sides with the same inclination angle. The connection between the front and rear sides of the upper and lower trapezoidal platforms is chamfered to facilitate the gas welding process after the sprocket tooth insert (1) is inserted into the sprocket base (2). The top of the upper trapezoidal platform of the sprocket tooth insert (1) is rounded on both the front and rear sides to facilitate engagement with the bucket elevator chain.

3. The split-type bucket elevator sprocket according to claim 1, characterized in that: The sprocket base component (2) is made of 45# steel; the sprocket tooth insert (1) is made of cast steel and heat-treated to increase the hardness to HRC60 or higher.

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