A link type passive hydraulic deviation correcting roller
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]调心托辊一般安装有三组托辊，分别是中间水平安装的水平托辊，以及两侧倾斜安装的倾斜托辊，三组托辊通过一个托辊架安装在输送机上，现有的纠偏驱动方式是采用油缸或电机，通过传动机构，带动托管架和三组托辊整体旋转，因为整个托辊架只有一个中心轴，旋转时以中心为原点，旋转角度受到限制，旋转后改变了托辊与输送带的作用承载关系和接触面积，存在旋转阻力大，纠偏效果较差的缺点
[0010]本实用新型的有益效果是，提供了一种连杆式无源液压纠偏托辊，托辊架采用分体设计，纠偏机构采用纠偏油缸作为动力驱动，纠偏油缸的驱动中间传动杆水平摆动，从而带动中间转轴和其上端的中间托架转动，同时在串连传动杆的作用下，左传动杆和右传动杆同步摆动，同时带动其上的左托架和右托架转动，从而调节三个托辊的角度，在输送带跑偏时，有效进行纠偏，并且三个托辊以各自的中心进行旋转，调节角度大，行程短，更灵活，本设计通过纠偏油缸驱动连杆机构带动三组托辊分别旋转，有效提高了调心托辊的纠偏效果，降低了纠偏阻力。
Smart Images
Figure CN224618768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of self-aligning idler technology, specifically to a linkage-type passive hydraulic self-aligning idler. Background Technology
[0002] Conveyor idlers are support devices used to support the conveyor belt and the material on it, ensuring the stable operation of the conveyor belt. The main function of self-aligning idlers is to prevent the conveyor belt from running off-center. When the belt runs to one side, the idler frame is rotated by a motor or hydraulic cylinder to adjust the angle between the idler frame and the idler.
[0003] Self-aligning idlers typically consist of three sets of idlers: a horizontal idler installed horizontally in the middle and inclined idlers installed at the sides. These three sets of idlers are mounted on the conveyor via an idler frame. The existing correction drive method uses a hydraulic cylinder or motor, which drives the idler frame and the three sets of idlers to rotate as a whole through a transmission mechanism. Because the entire idler frame has only one central axis, the rotation angle is limited as the center is the origin. After rotation, the load-bearing relationship and contact area between the idler and the conveyor belt are changed, resulting in high rotational resistance and poor correction effect. Utility Model Content
[0004] To address the aforementioned problems, this invention provides a linkage-type passive hydraulic self-aligning idler roller. It employs a split idler roller frame and uses a self-aligning cylinder to drive a linkage mechanism that rotates three sets of idlers separately, effectively improving the self-aligning idler roller's self-aligning effect and reducing self-aligning resistance.
[0005] The technical solution adopted by this utility model is to provide a linkage-type passive hydraulic correction roller, including a mounting frame, a roller frame set on the mounting frame and a roller set on a support frame, and a correction mechanism set on the mounting frame. The roller frame includes a middle support, a left support and a right support respectively set on the middle part and both sides of the upper end of the mounting frame, and the roller is rotatably mounted on the middle support, the left support and the right support respectively. The correction mechanism includes a central rotating shaft, a left rotating shaft, and a right rotating shaft rotatably mounted on the upper end of the mounting frame and located in the middle and on both sides of the mounting frame, a correction cylinder located on the front or rear side of the mounting frame, a central transmission rod, a left transmission rod, and a right transmission rod located on the lower end of the mounting frame and located in the middle and on both sides of the mounting frame, and a series transmission rod connected to the outer ends of the central transmission rod, the left transmission rod, and the right transmission rod. The intermediate rotating shaft, left rotating shaft, and right rotating shaft are all rotatably mounted on the mounting frame. The upper end of the intermediate rotating shaft is fixed to the middle of the lower end of the intermediate bracket, and the lower end is fixed to the inner end of the intermediate transmission rod. The upper end of the left rotating shaft is fixed to the middle of the lower end of the left bracket, and the lower end is fixed to the inner end of the left transmission rod. The upper end of the right rotating shaft is fixed to the middle of the lower end of the right bracket, and the lower end is fixed to the inner end of the right transmission rod. The outer ends of the intermediate transmission rod, left transmission rod, and right transmission rod are all hinged to the series transmission rod. The fixed end of the correction cylinder is hinged to the mounting frame, and the telescopic end of the correction cylinder is hinged to the front end of the intermediate transmission rod.
[0006] The mounting frame includes a horizontally arranged horizontal frame and tilting frames arranged on the horizontal frame and symmetrically arranged on the left and right. The intermediate bracket is horizontally rotatably mounted on the horizontal frame between the tilting frames by means of an intermediate pivot. The left bracket and the right bracket are mounted on the two tilting frames by means of left pivot and right pivot respectively.
[0007] The left rotating shaft includes an upper rotating shaft rotatably mounted on an inclined frame, a lower rotating shaft rotatably mounted on a horizontal frame and corresponding to the upper rotating shaft, and a universal joint disposed between the upper rotating shaft and the lower rotating shaft. The inner end of the left transmission rod is fixed to the lower end of the lower rotating shaft. The right rotating shaft has the same structure as the left rotating shaft.
[0008] The correction roller also includes a left upright and a right upright respectively disposed at the front end of the left and right sides of the mounting frame, a left vertical stop roller and a right vertical stop roller respectively rotatably disposed at the upper end of the left upright and the right vertical stop roller, and the correction mechanism also includes a left correction oil pump and a right correction oil pump respectively disposed on the left upright and the right upright and located below the left vertical stop roller and the right vertical stop roller respectively, and a distribution valve disposed on the mounting frame.
[0009] The left upright includes a fixed plate fixed to the mounting frame and erected with a fixing hole, an adjusting plate set on the upper part of the fixed plate and with a vertical elongated hole, and adjusting bolts set in the fixing hole and the vertical elongated hole. The left vertical guide roller and the left correction oil pump are fixed on the adjusting plate. The right upright has the same structure as the left upright. The fixed end of the correction oil cylinder is hinged to the fixed plate, and the telescopic end is horizontally oriented and hinged to the front end of the intermediate transmission rod.
[0010] The beneficial effects of this utility model are that it provides a linkage-type passive hydraulic self-aligning idler roller. The idler roller frame adopts a split design, and the self-aligning mechanism is driven by a self-aligning cylinder. The drive rod of the self-aligning cylinder swings horizontally, thereby driving the central shaft and the central bracket at its upper end to rotate. At the same time, under the action of the series drive rod, the left and right drive rods swing synchronously, driving the left and right brackets on them to rotate, thereby adjusting the angle of the three idlers. When the conveyor belt deviates, it effectively corrects the deviation. Moreover, the three idlers rotate around their respective centers, with a large adjustment angle, short stroke, and greater flexibility. This design, by driving the linkage mechanism through the self-aligning cylinder to drive the three sets of idlers to rotate separately, effectively improves the self-aligning idler roller's self-aligning effect and reduces the self-aligning resistance. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of another aspect of this utility model.
[0012] In the attached diagram, 1 is the idler roller, 2 is the intermediate support, 3 is the left support, 4 is the right support, 5 is the intermediate shaft, 6 is the left shaft, 7 is the right shaft, 8 is the correction cylinder, 9 is the intermediate transmission rod, 10 is the left transmission rod, 11 is the right transmission rod, 12 is the series transmission rod, 13 is the horizontal frame, 14 is the inclined frame, 15 is the upper shaft, 16 is the lower shaft, 17 is the universal joint, 18 is the distribution valve, 19 is the left vertical frame, 20 is the right vertical frame, 21 is the right vertical stop roller, 22 is the left vertical stop roller, 23 is the left correction oil pump, 24 is the right correction oil pump, 25 is the fixed plate, and 26 is the adjusting plate. Detailed Implementation
[0013] like Figure 1-2As shown, this utility model provides a linkage-type passive hydraulic correction roller, including a mounting frame, a roller frame mounted on the mounting frame, and a roller 1 mounted on a support frame. It also includes a correction mechanism mounted on the mounting frame. The roller frame includes a middle support 2, a left support 3, and a right support 4 respectively located at the middle and sides of the upper end of the mounting frame. The roller 1 is rotatably mounted on the middle support 2, the left support 3, and the right support 4 respectively. The correction mechanism includes a middle rotating shaft 5, a left rotating shaft 6, and a right rotating shaft 7 rotatably mounted on the upper end of the mounting frame and located at the middle and sides of the mounting frame respectively; a correction cylinder 8 located on the front or rear side of the mounting frame; and a middle transmission rod 9, a left transmission rod 10, and a right transmission rod located at the lower end of the mounting frame and located at the middle and sides of the mounting frame respectively. 11. A series transmission rod 12 is connected to the outer ends of the intermediate transmission rod 9, the left transmission rod 10, and the right transmission rod 11. The intermediate rotating shaft 5, the left rotating shaft 6, and the right rotating shaft 7 are all rotatably mounted on the mounting frame. The upper end of the intermediate rotating shaft 5 is fixed to the middle of the lower end of the intermediate bracket 2, and the lower end is fixed to the inner end of the intermediate transmission rod 9. The upper end of the left rotating shaft 6 is fixed to the middle of the lower end of the left bracket 3, and the lower end is fixed to the inner end of the left transmission rod 10. The upper end of the right rotating shaft 7 is fixed to the middle of the lower end of the right bracket 4, and the lower end is fixed to the inner end of the right transmission rod 11. The outer ends of the intermediate transmission rod 9, the left transmission rod 10, and the right transmission rod 11 are all hinged to the series transmission rod 12. The fixed end of the correction cylinder 8 is hinged to the mounting frame, and the telescopic end of the correction cylinder 8 is hinged to the front end of the intermediate transmission rod 9.
[0014] The idler frame adopts a split design, including a middle bracket 2, a left bracket 3, and a right bracket 4. The middle bracket 2, the left bracket 3, and the right bracket 4 are rotatably mounted on the mounting frame 1 via a middle rotating shaft 5, a left rotating shaft 6, and a right rotating shaft 7, respectively. The middle bracket 2, the left bracket 3, and the right bracket 4 can rotate around their own center, which provides a wider range of angle adjustment and greater flexibility. Furthermore, rotating separately results in less resistance compared to rotating as a whole.
[0015] The correction mechanism uses a correction cylinder 8 as its power drive. The correction cylinder 8 is installed horizontally, that is, from the left or right side of the front of the fixed frame, horizontally towards the center. The upper and lower ends of the middle rotating shaft 5, left rotating shaft 6, and right rotating shaft 7 extend vertically upwards and downwards from the mounting frame, respectively. The upper end is used to install the middle bracket 2, left bracket 3, and right bracket 4, and the lower end is driven by a linkage mechanism. The linkage mechanism consists of the outer ends of the middle transmission rod 9, left transmission rod 10, and right transmission rod 11, all connected to the series transmission rod 12. The inner ends of the middle transmission rod 9, left transmission rod 10, and right transmission rod 11 are fixed to the lower ends of the middle rotating shaft 5, left rotating shaft 6, and right rotating shaft 7, respectively. The middle transmission rod 9, left transmission rod 10, and right transmission rod 11 are in a parallel state, and their outer ends are all hinged to the series transmission rod 12. The telescopic end of the correction cylinder 8 is hinged to the outer end of the middle transmission rod 9 and spaced apart from the connection position of the series transmission rod 12, so that they do not interfere with each other. The extension and retraction of the telescopic end of the correction cylinder 8 can drive the intermediate transmission rod 9 to swing horizontally, thereby driving the intermediate rotating shaft 5 and the intermediate bracket 2 at its upper end to rotate. At the same time, under the action of the series transmission rod 12, the left transmission rod 10 and the right transmission rod 11 swing synchronously, driving the left bracket 3 and the right bracket 4 on them to rotate, thereby adjusting the angle of the three idlers. When the conveyor belt deviates, it can effectively correct the deviation. The three idlers rotate around their respective centers, with a large adjustment angle, short stroke, and greater flexibility. This design drives the three sets of idlers to rotate separately by the correction cylinder, which effectively improves the correction effect of the self-aligning idlers, reduces the correction resistance, and has a simple and effective structure with minimal modification to the original structure and low cost.
[0016] like Figure 1-2 As shown, the mounting frame includes a horizontally arranged horizontal frame 13 and two symmetrically arranged inclined frames 14 on the horizontal frame 13. The intermediate bracket 2 is horizontally rotatably mounted on the horizontal frame 13 between the inclined frames 14 by means of an intermediate pivot 5. The left bracket 3 and the right bracket 4 are mounted on the two inclined frames 14 by means of a left pivot 6 and a right pivot 7, respectively.
[0017] The idler rollers in this design are limited to a trough shape, with the left bracket 3 and the right bracket 4 respectively mounted on two inclined frames 14.
[0018] like Figure 1-2 As shown, the left rotating shaft 6 includes an upper rotating shaft 15 rotatably mounted on the inclined frame 14, a lower rotating shaft 16 rotatably mounted on the horizontal frame 13 and corresponding to the upper rotating shaft 15, and a universal joint 17 disposed between the upper rotating shaft 15 and the lower rotating shaft 16. The inner end of the left transmission rod 10 is fixed to the lower end of the lower rotating shaft 16. The right rotating shaft 7 has the same structure as the left rotating shaft 6.
[0019] Since there is an angle between the horizontal frame 13 and the inclined frame 14, the left rotating shaft 6 adopts a split design, consisting of an upper rotating shaft 15 and a lower rotating shaft 16. Because there is an angle between the upper rotating shaft 15 and the lower rotating shaft 16, they are connected by a universal joint 17, which does not hinder the rotational transmission between the upper rotating shaft 15 and the lower rotating shaft 16, resulting in more stable and flexible rotation. The right rotating shaft 7 adopts the same structure as the left rotating shaft 6, providing more stable and flexible rotation.
[0020] like Figure 1-2 As shown, the correction roller also includes a left upright 19 and a right upright 20 respectively disposed at the front ends of the left and right sides of the mounting frame, a left vertical stop roller 22 and a right vertical stop roller 21 respectively rotatably disposed at the upper ends of the left upright 19 and the right upright 20, the correction mechanism also includes a left correction oil pump 23 and a right correction oil pump 24 respectively disposed on the left upright 19 and the right upright 20 and located below the left vertical stop roller 22 and the right vertical stop roller 21, and a distribution valve 18 disposed on the mounting frame.
[0021] The left vertical frame 19, right vertical frame 20, left vertical stop roller 22, and right vertical stop roller 21 belong to the existing self-aligning idler mechanism. The left correction oil pump 23 and right correction oil pump 24 are installed below the left vertical stop roller 22 and right vertical stop roller 21, which is convenient to install, requires no additional modifications, and reduces costs. The left correction oil pump 23, right correction oil pump 24, and correction cylinder 8 are connected to the distribution valve 18 via oil pipes.
[0022] like Figure 1-2 As shown, the left upright 19 includes a fixed plate 25 that is fixed on the mounting frame and erected with a fixing hole, an adjusting plate 26 that is set on the upper end of the fixed plate 25 and has a vertical elongated hole, and adjusting bolts that are set in the fixing hole and the vertical elongated hole. The left vertical stop roller 22 and the left correction oil pump 23 are fixed on the adjusting plate 26. The right upright 20 has the same structure as the left upright 19. The fixed end of the correction oil cylinder 8 is hinged to the fixed plate 25 and the telescopic end is horizontally oriented and hinged to the front end of the intermediate transmission rod 9. The original left upright 19 and right upright 20 are changed to an adjustable structure with separate upper and lower parts. The fixed plate 25 and the adjusting plate 26 are locked by bolts passing through the fixed hole and the vertical elongated hole. The fixed height of the adjusting plate 26 on the fixed plate 25 can be adjusted by the position of the vertical elongated hole on the adjusting plate 26, making installation and use more flexible. The correction cylinder 8 is installed horizontally and is at the same horizontal position as the intermediate transmission rod 9. The fixed end of the correction cylinder 8 is hinged to the fixed plate 25, and the telescopic end is hinged to the front end of the intermediate transmission rod 9, making the drive more effective and convenient.
Claims
1. A linkage-type passive hydraulic alignment roller, comprising a mounting frame, an idler frame mounted on the mounting frame, and an idler (1) mounted on a support frame, wherein the idler frame comprises a middle support (2), a left support (3), and a right support (4) respectively mounted on the middle and both sides of the upper end of the mounting frame, and the idler (1) is rotatably mounted on the middle support (2), the left support (3), and the right support (4); characterized in that: It also includes a correction mechanism installed on the mounting frame. The correction mechanism includes a central rotating shaft (5), a left rotating shaft (6), and a right rotating shaft (7) that are rotatably installed on the upper end of the mounting frame and located in the middle and on both sides of the mounting frame, a correction cylinder (8) installed on the front or rear side of the mounting frame, a central transmission rod (9), a left transmission rod (10), and a right transmission rod (11) installed on the lower end of the mounting frame and located in the middle and on both sides of the mounting frame, and a series transmission rod (12) connected to the outer ends of the central transmission rod (9), the left transmission rod (10), and the right transmission rod (11). The intermediate rotating shaft (5), left rotating shaft (6) and right rotating shaft (7) are all rotatably mounted on the mounting frame. The upper end of the intermediate rotating shaft (5) is fixed to the middle of the lower end of the intermediate bracket (2) and the lower end is fixed to the inner end of the intermediate transmission rod (9). The upper end of the left rotating shaft (6) is fixed to the middle of the lower end of the left bracket (3) and the lower end is fixed to the inner end of the left transmission rod (10). The upper end of the right rotating shaft (7) is fixed to the middle of the lower end of the right bracket (4) and the lower end is fixed to the inner end of the right transmission rod (11). The outer ends of the intermediate transmission rod (9), left transmission rod (10) and right transmission rod (11) are all hinged to the series transmission rod (12). The fixed end of the correction cylinder (8) is hinged to the mounting frame, and the telescopic end of the correction cylinder (8) is hinged to the front end of the intermediate transmission rod (9).
2. The linkage-type passive hydraulic alignment roller according to claim 1, characterized in that: The mounting frame includes a horizontally arranged horizontal frame (13) and two symmetrical inclined frames (14) arranged on the horizontal frame (13). The intermediate bracket (2) is horizontally rotated and mounted on the horizontal frame (13) between the inclined frames (14) by means of an intermediate pivot (5). The left bracket (3) and the right bracket (4) are mounted on the two inclined frames (14) by means of a left pivot (6) and a right pivot (7) respectively.
3. The linkage-type passive hydraulic alignment roller according to claim 2, characterized in that: The left rotating shaft (6) includes an upper rotating shaft (15) rotatably mounted on an inclined frame (14), and a lower rotating shaft (16) rotatably mounted on a horizontal frame (13) and corresponding to the upper rotating shaft (15), and a universal joint (17) disposed between the upper rotating shaft (15) and the lower rotating shaft (16). The inner end of the left transmission rod (10) is fixed to the lower end of the lower rotating shaft (16). The right rotating shaft (7) has the same structure as the left rotating shaft (6).
4. A linkage-type passive hydraulic alignment roller according to claim 1, characterized in that: The correction roller also includes a left vertical frame (19) and a right vertical frame (20) respectively disposed at the front end of the left and right sides of the mounting frame, and a left vertical stop roller (22) and a right vertical stop roller (21) respectively rotatably disposed at the upper end of the left vertical frame (19) and the right vertical frame (20). The correction mechanism also includes a left correction oil pump (23) and a right correction oil pump (24) respectively installed on the left upright (19) and the right upright (20) and located below the left vertical stop roller (22) and the right vertical stop roller (21) respectively, as well as a distribution valve (18) installed on the mounting frame.
5. A linkage-type passive hydraulic alignment roller according to claim 4, characterized in that: The left upright (19) includes a fixed plate (25) fixed on the mounting frame and erected with a fixed hole, an adjusting plate (26) set on the upper end of the fixed plate (25) and with a vertical elongated hole, and adjusting bolts set in the fixed hole and the vertical elongated hole. The left vertical stop roller (22) and the left correction oil pump (23) are fixed on the adjusting plate (26). The right upright (20) has the same structure as the left upright (19). The fixed end of the correction oil cylinder (8) is hinged to the fixed plate (25) and the telescopic end is horizontally oriented and hinged to the front end of the intermediate transmission rod (9).