Lateral catch wheel structure of limestone reclaimer and limestone reclaimer
By adopting a double-sided positioning roller design in the side gear structure of the limestone feeder, the problem of excessive shear force caused by unilateral coordination is solved, and the roller is uniformly subjected to the roller, reducing equipment damage and replacement difficulty, and improving the durability and maintenance efficiency of the equipment.
Patent Information
- Application Number
- CN202422461768.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-11
AI Technical Summary
In the side-gate wheel structure of the existing limestone feeder, the roller and the bearing seat are unilaterally combined, resulting in excessive shear force on the connection part of the shaft and the bearing seat, which is prone to shaft breakage.
The roller of the side gear structure is set to be positioned on both sides, and the bearing is arranged in the middle of the shaft, so that a part of the shaft extends out on both sides of the roller, and is fixed by the positioning block to ensure that the force on both sides of the roller is uniform.
It avoids excessive shear force caused by unilateral stress, reduces damage to the side gear structure, improves the durability and maintenance convenience of the equipment, and reduces replacement costs.
Smart Images
Figure CN223149754U_ABST
Abstract
Description
Technical Field
[0001] The embodiment of the utility model relates to the technical field of limestone reclaiming, in particular to a side retaining wheel structure of a limestone reclaiming machine and a limestone reclaiming machine. Background Art
[0002] A limestone reclaiming machine is generally used for reclaiming limestone. Usually, the limestone reclaiming machine is arranged on a main beam, and the whole limestone reclaiming machine is driven by a motor to move along the main beam; in this process, the rake frames arranged on both sides of the limestone reclaiming machine can rake the limestone, and then it falls into the collecting device below.
[0003] At present, during the use of the limestone reclaiming machine, the side retaining wheel structure arranged at the side beam of the rake frame is often damaged, and equipment problems such as wear and broken shafts of the side retaining wheel bearings, roller end covers and bearing seats in the side retaining wheel structure often occur. After analyzing the reasons on site, it is found that the reasons for the damage are as follows: the rollers, shafts and bearing seats of the original side retaining wheels are in unilateral fit, and the connection part between the shaft rod and the bearing seat is subject to shear force. During the walking process, the interaction force between the rake frame and the limestone is relatively large. After this force is transmitted to the connection part between the shaft rod and the bearing seat, the generated shear force is too large, resulting in the easy occurrence of shaft breakage.
[0004] In view of this, how to overcome the defects of the prior art and solve the problem of easy damage at the side retaining wheel is a difficult problem to be solved in this technical field. Content of the Utility Model
[0005] In view of the above technical problems, the embodiment of the utility model provides a side retaining wheel structure of a limestone reclaiming machine and a limestone reclaiming machine. By setting the rollers at the side retaining wheel structure to bilateral positioning, that is, setting the rollers in the middle part of the shaft rod through bearings, so that a part of the shaft rod extends out on both sides of the roller, and then fixing both ends of the extended shaft rod, in this way, when the rake frame works, the forces on both sides of the roller will be uniform, avoiding the problem that only one side is stressed, resulting in too large shear force and unable to bear the damage.
[0006] The purpose of the embodiment of the utility model is realized by the following technical solutions:
[0007] To solve the above technical problems, in the first aspect, the embodiment of the utility model provides a side retaining wheel structure of a limestone reclaiming machine, including a fixed seat 1 and a roller 2. The fixed seat 1 is arranged on the side beam 200 of the rake frame, and one end of the fixed seat 1 faces the side track of the main beam 100;
[0008] On the inner sides above and below the fixed seat 1, positioning blocks 3 are provided. The roller 2 is arranged on the shaft rod 4 through a bearing, and both ends of the shaft rod 4 are limited within the positioning blocks 3 on the upper and lower sides respectively; a part of the roller 2 extends beyond the plane formed by the upper edge and the lower edge of the fixed seat 1 and lands on the side track of the main beam 100.
[0009] In some embodiments, the fixed seat 1 is provided with a through groove 101 corresponding to the roller 2, the positioning block 3, and the shaft rod 4; the through groove 101 includes upper, middle, and lower parts, wherein the widths of the upper and lower parts are greater than the width of the positioning block 3, and the width of the middle part is greater than the width of the roller 2 within the fixed seat 1.
[0010] In some embodiments, the fixed seat 1 includes an upper plate 102, a lower plate 103, a front plate 104, and a rear plate 105 that enclose a square opening space. The through groove 101 is opened on the same side of the front plate 104 and the rear plate 105; the positioning blocks 3 are arranged on the upper plate 102 and the lower plate 103 on the same side as the through groove 101.
[0011] In some embodiments, the positioning block 3 includes a first positioning sub-block 301 and a second positioning sub-block 302. A square notch 303 is formed between the first positioning sub-block 301 and the second positioning sub-block 302. The first positioning sub-block 301 and the second positioning sub-block 302 are connected by a first bolt 304; the first positioning sub-block 301 is fixed on the fixed seat 1, and the second positioning sub-block 302 is detachably connected to the first positioning sub-block 301 through the first bolt 304; or the second positioning sub-block 302 is fixed on the fixed seat 1, and the first positioning sub-block 301 is detachably connected to the second positioning sub-block 302 through the first bolt 304.
[0012] In some embodiments, both ends of the shaft rod 4 are provided with square rod heads 401, and the length and width of the square rod heads 401 are the same as the length and width of the square notch 303.
[0013] In some embodiments, the first positioning sub-block 301 is U-shaped and the second positioning sub-block 302 is square; or, the first positioning sub-block 301 is square and the second positioning sub-block 302 is U-shaped; or, both the first positioning sub-block 301 and the second positioning sub-block 302 are U-shaped.
[0014] In some embodiments, the overall length of the positioning block 3 is greater than twice the length of the square notch 303, and the overall width of the positioning block 3 is greater than twice the width of the square notch 303.
[0015] In some embodiments, a plurality of gaskets 5 are disposed between the square rod head 401 and the square notch 303 , and the size of the gasket 5 is consistent with the size of the square notch 303 .
[0016] In some embodiments, an upper end cover 201 and a lower end cover 202 are provided on both sides of the roller 2 , and the upper end cover 201 and the lower end cover 202 are fixed to the roller 2 by second bolts 203 and nuts 204 .
[0017] In a second aspect, an embodiment of the utility model provides a limestone reclaimer, comprising the side stop wheel structure of the limestone reclaimer as described in the first aspect.
[0018] Compared with the prior art, the beneficial effect of the utility model is: different from the prior art, the embodiment of the utility model provides a side stop wheel structure of a limestone reclaimer and a limestone reclaimer, by setting the roller at the side stop wheel structure to bilateral positioning, that is, setting the roller in the middle part of the shaft through a bearing, so that a part of the shaft is extended on both sides of the roller, and then fixing the two ends of the extended shaft, so that when the rake frame is working, the force on both sides of the roller will be uniform, avoiding the problem of force on only one side, resulting in excessive shear force, and damage due to inability to withstand.
[0019] Furthermore, in the existing limestone reclaimer, the side block wheel structure is not easy to disassemble after installation, and it is also troublesome to replace parts. In many cases, a new set of side block wheel structure needs to be replaced, which is not only troublesome but also does not meet the demand of cost saving. In the embodiment of the utility model, the positioning block is set as two parts. When disassembly is required, only the bolts between the first positioning block and the second positioning block need to be removed, and one of the positioning blocks needs to be removed, and the roller and shaft rod assembly can be quickly taken out or installed, which is convenient and quick. When parts need to be replaced, they can also be replaced in a targeted manner, saving costs.
[0020] Furthermore, in the existing limestone reclaimer, the end of the shaft rod of the roller is set to be round, which may cause shaking and easily cause more wear on the positioning block. In the embodiment of the utility model, a square notch is set on the positioning block, and the two ends of the shaft rod are set to be square rod heads with the same size as the square notch. In this way, the shaft rod can be completely fixed on the positioning block by limiting the position through the square shape, without shaking, and reducing wear.
[0021] Furthermore, in the existing limestone reclaimers, the rollers of the side retaining wheel structure may not exactly fall on the side track of the main beam, or due to the incomplete positioning of the axle rod of the roller, the shaking generated during operation may cause the roller to deviate from the side track. In the embodiment of the present invention, a gasket is provided between the square rod head at the end of the axle rod and the square notch of the positioning block. By adjusting the number of gaskets at the upper and lower ends, the position of the roller can be adjusted so that it exactly falls on the side track of the main beam, and the gasket can fill the gap between the square rod head and the inside of the square notch to completely position the axle rod, thereby ensuring that the roller will not deviate from the side track due to shaking during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In one or more embodiments, exemplary illustrations are provided through the pictures in the corresponding attached drawings. These exemplary illustrations do not limit the embodiments. Elements / modules and steps with the same reference numerals in the drawings represent similar elements / modules and steps, unless otherwise stated, the drawings in the figures do not constitute a proportional limitation.
[0023] Figure 1 is an overall schematic diagram of the side retaining wheel structure of a limestone reclaimer provided by an embodiment of the present invention;
[0024] Figure 2 is a schematic diagram of the structure of the fixed seat provided by an embodiment of the present invention;
[0025] Figure 3 is a schematic diagram of the structure of the positioning block provided by an embodiment of the present invention;
[0026] Figure 4 is a schematic diagram of the structure of the roller and axle rod assembly provided by an embodiment of the present invention;
[0027] Figure 5 is a schematic diagram of the setting of the upper and lower gaskets provided by an embodiment of the present invention;
[0028] Figure 6 is a schematic diagram of disassembly and installation provided by an embodiment of the present invention;
[0029] Figure 7 is a schematic diagram of the completed installation provided by an embodiment of the present invention;
[0030] Figure 8 is a schematic diagram of the end cover installation provided by an embodiment of the present invention;
[0031] Figure 9 is an overall schematic diagram of a limestone reclaimer provided by an embodiment of the present invention;
[0032] Figure 10 is a schematic diagram of the position of the side retaining wheel structure provided by an embodiment of the present invention. Detailed Embodiments
[0033] Unless otherwise required by the context, throughout the specification and claims, the term "comprising" is to be construed in an open - inclusive sense, i.e., "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples", etc., are intended to indicate that specific features, structures, materials, or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representations of the above - mentioned terms do not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials, or characteristics may be included in any one or more embodiments or examples in any appropriate manner, that is, although they may be carried in the embodiments or examples of the above - mentioned terms due to reasons such as the order and position of appearance, they are not limited to being carried in a combined manner by one embodiment or example.
[0034] In the description of the present utility model, the orientation or positional relationship indicated by the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc., is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and does not require the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0035] The following will describe the present utility model in detail with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can be made. These all belong to the protection scope of the present utility model.
[0036] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following will further describe the present utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0037] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model. In addition, the technical features involved in the following various embodiments of the present utility model can be combined with each other as long as they do not conflict with each other.
[0038] During the use of a limestone reclaiming machine, at the side beam of the rake frame connected to the rake frame, the roller, shaft and bearing seat of the original side retaining wheel were in unilateral fit. The connection part between the shaft rod and the bearing seat was subjected to shear force. During the walking process, the interaction force between the rake frame and the limestone was relatively large. After this force was transmitted to the connection between the shaft rod and the bearing seat, the generated shear force was too large, resulting in an easy occurrence of shaft breakage.
[0039] To solve the above problems, the embodiment of the present utility model provides a side retaining wheel structure of a limestone reclaiming machine and a limestone reclaiming machine. By setting the roller at the side retaining wheel structure to bilateral positioning, that is, setting the roller in the middle part of the shaft rod through a bearing, so that a part of the shaft rod extends on both sides of the roller, and then fixing both ends of the extended shaft rod. In this way, when the rake frame is working, the forces on both sides of the roller will be uniform, avoiding the problem that only one side is stressed, resulting in too large a shear force and being unable to bear the damage.
[0040] Specifically, in combination with the accompanying drawings, the embodiments of the present utility model will be further elaborated below.
[0041] Embodiment 1
[0042] As Figure 1 shown, referring to Figure 9 and Figure 10 , the embodiment of the present utility model provides a side retaining wheel structure of a limestone reclaiming machine, including a fixed seat 1 and a roller 2. The fixed seat 1 is arranged on the side beam 200 of the rake frame, and one end of the fixed seat 1 faces the side track of the main beam 100; positioning blocks 3 are arranged on the inner side above and the inner side below the fixed seat 1. The roller 2 is arranged in the middle part of the shaft rod 4 through a bearing, and both ends of the shaft rod 4 are respectively limited in the positioning blocks 3 on the upper and lower sides; a part of the roller 2 extends beyond the plane formed by the upper edge and the lower edge of the fixed seat 1 and lands on the side track of the main beam 100. Through the above settings, the side beam 200 of the rake frame can slide on the side track of the main beam 100 through the roller 2. And because a part of the shaft rod 4 extends on both sides of the roller 2 and is limited in the positioning block 3, when the rake frame is working, the shaft rods 4 on both sides of the roller 2 will be evenly stressed, avoiding the problem that only one side of the shaft rod 4 is stressed, resulting in too large a shear force and the shaft rod 4 being unable to bear the damage.
[0043] Referring to Figure 1 and Figure 2As shown, in some embodiments, the fixing base 1 is provided with a through groove 101 corresponding to the roller 2, the positioning block 3, and the shaft rod 4; the through groove 101 includes upper, middle, and lower parts, wherein the widths of the upper and lower parts are greater than the width of the positioning block 3, so that a part of the positioning block 3 can be inserted or removed through the through groove 101; the width of the middle part is greater than the width of the roller 2 located inside the fixing base 1, and the overall height of the through groove 101 also needs to be greater than the height of the shaft rod 4, so that the roller 2 and the shaft rod 4 can be inserted or removed through the through groove 101.
[0044] Reference Figure 1 and Figure 2 As shown, in some embodiments, the fixing base 1 includes an upper plate 102, a lower plate 103, a front plate 104, and a rear plate 105 that enclose a square opening space, and the through groove 101 is provided on the same side of the front plate 104 and the rear plate 105; the positioning block 3 is provided on the upper plate 102 and the lower plate 103 on the same side as the through groove 101.
[0045] Reference Figure 3 As shown, in some embodiments, the positioning block 3 includes a first positioning sub-block 301 and a second positioning sub-block 302, and a square notch 303 is formed between the first positioning sub-block 301 and the second positioning sub-block 302, and the first positioning sub-block 301 and the second positioning sub-block 302 are connected by a first bolt 304. Specifically, it can be that the first positioning sub-block 301 is fixed on the fixing base 1, and the second positioning sub-block 302 is detachably connected to the first positioning sub-block 301 by the first bolt 304; or it can be that the second positioning sub-block 302 is fixed on the fixing base 1, and the first positioning sub-block 301 is detachably connected to the second positioning sub-block 302 by the first bolt 304. It only needs to ensure that one positioning sub-block is fixed and the other is detachably connected to it by a bolt.
[0046] Reference Figure 3 and Figure 4 As shown, in some embodiments, both ends of the shaft rod 4 are provided with square rod heads 401, and the length and width of the square rod heads 401 are the same as the length and width of the square notch 303. In this way, after the square rod heads 401 are limited in the square notch 303, the shaft rod 4 will not rotate left and right, and compared with the friction generated when the round rod head rotates, the wear between the shaft rod 4 and the positioning block 3 can be reduced.
[0047] Reference Figure 3As shown, in some embodiments, the first positioning block 301 is U-shaped, and the second positioning block 302 is square; after the second positioning block 302 is fixed to the first positioning block 301 by the first bolt 304, an integral positioning block 3 is formed; and because the first positioning block 301 is U-shaped, a square notch 303 is formed in the middle of the formed positioning block 3. It should be noted that the above Figure 3 The figure is only one setting mode. In actual use, the first positioning block 301 may be square and the second positioning block 302 may be U-shaped; or, the first positioning block 301 and the second positioning block 302 may both be U-shaped, and it is only necessary to form a square notch 303 after fixing.
[0048] In some embodiments, the overall length of the positioning block 3 is greater than twice the length of the square notch 303, and the overall width of the positioning block 3 is greater than twice the width of the square notch 303. The purpose of this design is to strengthen the strength of the positioning block 3. When in use, the connection between the shaft rod 4 and the positioning block 3 will be subjected to a greater force. By setting the surrounding layer of the shaft rod 4 to be thicker, it can withstand a greater force while ensuring safety.
[0049] refer to Figure 5 As shown, in some embodiments, a plurality of gaskets 5 are provided between the square rod head 401 and the square notch 303, and the size of the gasket 5 is consistent with the size of the square notch 303. By adjusting the number of the upper and lower gaskets 5, the position of the roller 2 in the vertical direction can be adjusted so that it just falls on the side track of the main beam 100, and the gap between the square rod head 401 and the inside of the square notch 303 can be filled by the gasket 5, so that the shaft rod 4 is completely positioned, and thus the roller 2 will not deviate from the side track due to up and down movement during operation.
[0050] refer to Figure 6 As shown, under the above structural setting, the above structure can be easily disassembled and installed. Assuming that the first positioning block 301 is U-shaped and the second positioning block 302 is square, the first positioning block 301 is fixed to the upper inner side and the lower inner side of the fixing seat 1; the second positioning block 302 is fixed to the first positioning block 301 by the first bolt 304. When disassembling, it is only necessary to remove the first bolt 304, and then the upper and lower second positioning blocks 302 can be taken out from the through slot 101 of the fixing seat 1, and then the assembly formed by the roller 2 and the shaft rod 4, as well as the gaskets 5 above and below the shaft rod 4 can be taken out from the through slot 101. When installing, push the assembly formed by the roller 2 and the shaft rod 4 from the through slot 101 into the U-shaped opening of the first positioning block 301, adjust the required height of the roller 2 by the gasket 5, and then fix the second positioning block 302 to the first positioning block 301 by the first bolt 304, and complete the limit fixation of the shaft rod 4 and the gasket 5 to form the following. Figure 7The complete side retaining wheel structure shown.
[0051] Reference Figure 8 As shown, in some embodiments, upper end covers 201 and lower end covers 202 are provided on both sides of the roller 2, and the upper end covers 201 and the lower end covers 202 are fixed on the roller 2 through a plurality of second bolts 203 and a plurality of nuts 204. The main functions of the upper end cover 201 and the lower end cover 202 are to shield the bearings between the roller 2 and the shaft rod 4, playing a role in aesthetics and protection.
[0052] In summary, in the embodiments of the present utility model, a side retaining wheel structure of a limestone reclaimer is provided. By setting the rollers at the side retaining wheel structure to be bilaterally positioned, that is, setting the rollers in the middle part of the shaft rod through bearings, so that a part of the shaft rod extends on both sides of the roller, and then fixing both ends of the extended shaft rod, in this way, when the rake frame is working, the forces on both sides of the roller will be uniform, avoiding the problem that only one side is stressed, resulting in excessive shear force and being unable to bear and being damaged.
[0053] Furthermore, in the existing limestone reclaimer, after the side retaining wheel structure is installed, it is not easy to disassemble. If parts need to be replaced, it is also rather troublesome. In many cases, a new set of side retaining wheel structures needs to be replaced, which is not only troublesome but also does not meet the requirement of cost saving. In the embodiments of the present utility model, the positioning block is set in two parts. When disassembly is required, only the bolts between the first positioning sub-block and the second positioning sub-block need to be removed, and one of the positioning sub-blocks is moved away, then the roller and the shaft rod assembly can be quickly taken out or installed, which is convenient and fast. When parts need to be replaced, they can also be replaced specifically, saving costs.
[0054] Furthermore, in the existing limestone reclaimer, the end of the shaft rod of the roller is set to be circular, and there may be a shaking situation, which is likely to cause more wear with the positioning block. In the embodiments of the present utility model, a square notch is provided on the positioning block, and the two ends of the shaft rod are set to square rod heads with the same size as the square notch. In this way, through the square for limiting, the shaft rod can be completely fixed on the positioning block without shaking, reducing wear.
[0055] Furthermore, in the existing limestone reclaimer, the roller of the side retaining wheel structure may not exactly fall on the side track of the main body beam, or because the shaft rod of the roller is not fully positioned, the shaking generated during operation may cause the roller to deviate from the side track. In the embodiments of the present utility model, gaskets are provided between the square rod heads at the ends of the shaft rod and the square notches of the positioning block. By adjusting the number of upper and lower gaskets, the position of the roller can be adjusted so that it exactly falls on the side track of the main body beam, and the gaskets can fill the gap between the square rod heads and the inside of the square notches, enabling the shaft rod to be fully positioned. Furthermore, during the operation of the roller, it will not deviate from the side track due to shaking.
[0056] Example 2
[0057] In a second aspect, an embodiment of the present utility model provides a limestone reclaiming machine, which includes the side retaining wheel structure of the limestone reclaiming machine as described in the first aspect.
[0058] Reference Figure 9 and Figure 10 As shown, the limestone reclaiming machine is arranged on the main body beam 100 and realizes the reclaiming purpose by moving on the main body beam 100. The limestone reclaiming machine mainly includes an upper rake beam 300, side rake beams 200 on both sides, and rake frames 400 on both sides; among them, the upper rake beam 300 is arranged on the upper track of the main body beam 100 through an upper retaining wheel structure; the upper end of the side rake beam 200 is fixed on the upper rake beam 300, and the lower end of the side rake beam 200 is arranged on the side track of the main body beam 100 through a side retaining wheel structure; the rake frame 400 is inclined as a whole and is connected to the side rake beam 200 and the upper rake beam 300 through a connecting rod. By driving the upper rake beam 300 to move on the main body beam 100 with a motor, the side rake beam 200 and the rake frame 400 can be driven to move synchronously, so that the rake frame 400 reclaims limestone.
[0059] During the above operation process, the roller, shaft and bearing seat at the original side retaining wheel structure are in unilateral cooperation, and the connecting part of the shaft rod and the bearing seat is subjected to shear force. During the walking process, the interaction force between the rake frame and the limestone is relatively large. After this force is transmitted to the connection part of the shaft rod and the bearing seat, the generated shear force is too large, resulting in an easy occurrence of shaft breakage.
[0060] Based on this situation, in this Example 2, the side retaining wheel structure designed in Example 1 is applied to the limestone reclaiming machine. As shown in Figure 10 , the improved side retaining wheel structure 500 is arranged on the side rake beam 200 and contacts the side track of the main body beam 100. The specific structure of the improved side retaining wheel structure 500 has been described in Example 1 and will not be elaborated here.
[0061] It should be noted that the embodiment of the present utility model mainly improves the side retaining wheel structure in the original limestone reclaiming machine. As for the other original structures of the limestone reclaiming machine, they are not within the scope of improvement of the present utility model, so they are not described in more detail.
[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. Side retaining wheel structure of a limestone reclaiming machine, characterized in that It includes a fixed seat (1) and a roller (2). The fixed seat (1) is arranged on the side beam (200) of the harrow frame, and one end of the fixed seat (1) faces the side track of the main beam (100). Positioning blocks (3) are arranged on the inner sides above and below the fixed seat (1). The roller (2) is arranged on a shaft rod (4) through a bearing, and both ends of the shaft rod (4) are limited within the positioning blocks (3) on the upper and lower sides respectively. A part of the roller (2) extends beyond the plane formed by the upper and lower edges of the fixed seat (1) and lands on the side track of the main beam (100).
2. The side retaining wheel structure of the limestone reclaiming machine according to claim 1, wherein The fixed seat (1) is provided with a through groove (101) corresponding to the roller (2), the positioning block (3), and the shaft rod (4). The through groove (101) includes three parts: upper, middle, and lower. The widths of the upper and lower parts are greater than the width of the positioning block (3), and the width of the middle part is greater than the width of the roller (2) within the fixed seat (1).
3. The side retaining wheel structure of the limestone reclaimer according to claim 2, characterized in that, The fixed seat (1) includes an upper plate (102), a lower plate (103), a front plate (104), and a rear plate (105) that enclose a square opening space. The through groove (101) is opened on the same side of the front plate (104) and the rear plate (105). The positioning block (3) is arranged on the upper plate (102) and the lower plate (103) on the same side as the through groove (101).
4. The side retaining wheel structure of the limestone reclaiming machine according to claim 1, characterized in that, The positioning block (3) includes a first positioning sub-block (301) and a second positioning sub-block (302). A square notch (303) is formed between the first positioning sub-block (301) and the second positioning sub-block (302). The first positioning sub-block (301) and the second positioning sub-block (302) are connected by a first bolt (304). The first positioning sub-block (301) is fixed on the fixed seat (1), and the second positioning sub-block (302) is detachably connected to the first positioning sub-block (301) through the first bolt (304); or the second positioning sub-block (302) is fixed on the fixed seat (1), and the first positioning sub-block (301) is detachably connected to the second positioning sub-block (302) through the first bolt (304).
5. The side retaining wheel structure of the limestone reclaiming machine according to claim 4, characterized in that, Both ends of the shaft rod (4) are provided with square rod heads (401), and the length and width of the square rod heads (401) are the same as the length and width of the square notch (303).
6. The side retaining wheel structure of the limestone reclaiming machine according to claim 4, characterized in that, The first positioning sub-block (301) is U-shaped, and the second positioning sub-block (302) is square; or, the first positioning sub-block (301) is square, and the second positioning sub-block (302) is U-shaped; or, both the first positioning sub-block (301) and the second positioning sub-block (302) are U-shaped.
7. The side retaining wheel structure of the limestone reclaiming machine according to claim 4, characterized in that, The overall length of the positioning block (3) is greater than twice the length of the square notch (303), and the overall width of the positioning block (3) is greater than twice the width of the square notch (303).
8. The side retaining wheel structure of the limestone reclaimer according to claim 5, characterized in that, A plurality of gaskets (5) are arranged between the square rod head (401) and the square notch (303), and the size of the gasket (5) is consistent with the size of the square notch (303).
9. The side retaining wheel structure of the limestone reclaimer according to any one of claims 1-8, characterized in that, Upper end caps (201) and lower end caps (202) are arranged on both sides of the roller (2), and the upper end caps (201) and the lower end caps (202) are fixed on the roller (2) by second bolts (203) and nuts (204).
10. A limestone reclaiming machine, characterized in that, It includes the side retaining wheel structure of the limestone reclaiming machine according to any one of claims 1-9.