CN113511467A

CN113511467A - Single track type is from aligning bracket roller subassembly

Info

Publication number: CN113511467A
Application number: CN202110895395.6A
Authority: CN
Inventors: 徐步稳; 杨军
Original assignee: Anhui Hongdi Mechanical Equipment Manufacturing Co ltd
Current assignee: Anhui Hongdi Mechanical Equipment Manufacturing Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-10-19

Abstract

A monorail type self-aligning idler assembly comprises a channel steel bracket, wherein mounting plates are arranged at two ends of the channel steel bracket; a bearing seat is welded at the center of the surface of the channel steel support, the top of the bearing seat is rotatably connected with a bracket, and a roller is installed at the top of the bracket; the section of the end part of the bracket is inverted V-shaped; first spout, every have been seted up to channel-section steel support's surperficial symmetry the equal slidable mounting in inside of first spout has the spacing subassembly of angle, the top of the spacing subassembly of angle stretches into in the bracket, the top of the spacing subassembly of angle is the toper of adaptation bracket shape. The angle limiting assembly can move on the surface of the channel steel bracket, and the swing angle of the bracket can change along with the position of the angle limiting assembly; the bracket can be adjusted to an optimal deviation rectifying angle according to the on-site deviation state of the belt, so that the deviation rectifying pertinence is stronger, and the application range is wider; meanwhile, when the angle limiting assembly is adjusted, the angle limiting assembly only needs to move left and right, and the operation is simple and convenient.

Description

Single track type is from aligning bracket roller subassembly

Technical Field

The invention belongs to the technical field of belt conveyor processing, and particularly relates to a single-rail self-aligning idler assembly.

Background

In the running process of the belt conveyor, the conveying belt of the belt conveyor is easy to deviate under the action of various eccentric forces, so that effective technical measures are needed to prevent and correct the deviation of the conveying belt, and the most common method at present is realized by using rollers; the roller is rotatably arranged on the bracket, the belt is arranged at the upper part of the roller, and when the belt deviates to one side, the roller can horizontally rotate, so that a force towards the other side is applied to the belt, the belt can be corrected, the belt can be conveyed according to a preset route, and the material cannot be scattered;

in order to avoid the roller to rotate the transition, can be at the bottom installation angle stop device of roller, present angle stop device snap-on is on the support, and this swing angle that leads to the roller is fixed, can only adapt to the belt of specific eccentric angle and rectify the needs, and when belt eccentric angle is littleer or bigger, then the swing angle of roller just can't reach the needs of rectifying, and this kind of angle stop device has great limitation, and application scope is very limited.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a single-rail type self-aligning idler assembly, which has the following specific technical scheme:

a monorail type self-aligning idler assembly comprises a channel steel bracket, wherein mounting plates are arranged at two ends of the channel steel bracket; a bearing seat is welded at the center of the surface of the channel steel support, the top of the bearing seat is rotatably connected with a bracket, and a roller is installed at the top of the bracket; the section of the end part of the bracket is inverted V-shaped;

first sliding grooves are symmetrically formed in the surface of the channel steel support, an angle limiting assembly is slidably mounted inside each first sliding groove, the top end of each angle limiting assembly extends into the corresponding bracket, the top end of each angle limiting assembly is conical and is matched with the shape of the corresponding bracket, the angle limiting assemblies and the corresponding brackets are located on the same vertical central line, and the angle limiting assemblies and the inner walls of the corresponding brackets are arranged at intervals; the spacing setting of interval is used for making the spacing subassembly of angle can swing and prevent the off tracking and correct, and the spacing subassembly of angle of sliding state is used for changing the swing angle of bracket.

Further, the bracket comprises a transverse bracket and an inclined bracket which are of an integrated structure, the two ends of the transverse bracket are symmetrically connected with the inclined bracket, and an included angle between the transverse bracket and the inclined bracket is 120-150 degrees.

Further, the angle limiting assembly comprises a sliding plate, a stop plate and a guide post; the bottom surface of slide is equipped with the guide post perpendicularly, the slide laminating is in the surface of channel-section steel support, the guide post vertical slip runs through first spout, the inner surface of slide is equipped with the backstop board perpendicularly, the top of backstop board stretches into in the type of falling V of bracket inslot.

Further, the backstop board includes first riser and second riser, the surface one end of slide is located perpendicularly to the first riser, the top of first riser is rotated and is connected the second riser, the top of second riser is the toper, it is fixed through locking Assembly between second riser, the slide, locking Assembly is used for supporting the second riser of different angles, vertical state the second riser stretches into perpendicularly in horizontal bracket, the tilt state the second riser stretches into perpendicularly in oblique bracket.

Furthermore, the area between the conical structure of the second vertical plate and the inverted V-shaped groove of the bracket is a swing gap, and the width of each position in the swing gap is the same.

Furthermore, the swing clearance between second riser and the horizontal bracket is first swing clearance, the swing clearance between second riser and the oblique bracket is the second swing clearance, the width in first swing clearance is the same with the width in second swing clearance.

Furthermore, locking Assembly includes even board, last locating piece and lower locating piece, go up the outer wall that the locating piece located the second riser, lower locating piece passes through the mounting screw in the top surface of slide, even the top of board is rotated and is connected upper locating piece, bottom rotation and connect lower locating piece.

Furthermore, the outer wall of guide post is equipped with vertical scale strip, the outer wall vertical sliding sleeve of guide post is equipped with centre gripping locating component, the guide post is used for changing the height of second riser.

Further, centre gripping locating component includes sleeve pipe and interior baffle, the sleeve pipe slides the suit in the outer wall of guide post, the sleeve pipe passes through fix with screw on the guide post, sheathed tube top lateral wall is equipped with interior baffle perpendicularly, interior baffle is contradicted in channel-section steel support's inside bottom surface, the second spout has been seted up to channel-section steel support's side, the crossing slip of interior baffle runs through the second spout, channel-section steel support's lateral wall is equipped with the locking seat, the locking seat is located the bottom of second spout, the overhanging portion partial laminating of interior baffle is in the surface of locking seat, the overhanging portion of interior baffle passes through fix with screw on the locking seat.

Further, the lateral wall of channel-section steel support is equipped with the scale observation window, the top of second spout is located to the scale observation window, scale observation window inner wall is equipped with horizontal scale strip, the perpendicular surface of interior baffle is equipped with the pointer, the pointer stretches into the inside in the scale observation window, the pointer points to in horizontal scale strip.

The invention has the beneficial effects that:

1. the angle limiting assembly can move on the surface of the channel steel bracket, and the swinging angle of the bracket can change along with the position of the angle limiting assembly; when the angle limiting assembly is positioned at the inner end, the swinging angle of the bracket is the largest, and when the angle limiting assembly is positioned at the outermost end, the swinging angle of the bracket is the smallest; the deviation correcting angle of the bracket is floating, and the bracket can be adjusted to the optimal deviation correcting angle according to the on-site deviation state of the belt, so that the deviation correcting pertinence is stronger, and the application range is wider; meanwhile, when the angle limiting assembly is adjusted, the angle limiting assembly only needs to move left and right, and the operation is simple and convenient;

2. the bracket with the inverted V-shaped structure can be abutted against the angle limiting assembly to realize deflection constraint positioning; the vertical angle limiting assembly can extend into the bracket and can stop the bracket from the inside, so that the rotation angle of the bracket is restrained.

Drawings

FIG. 1 shows a schematic structural view of a monorail type self-aligning idler assembly of the present invention;

FIG. 2 shows a schematic view of the angle limiting assembly of the present invention;

FIG. 3 shows a schematic view of the wobble gap configuration of the present invention;

FIG. 4 is a vertical attitude structural schematic of a second riser of the present invention;

fig. 5 shows a schematic structural view of a second riser in an inclined state according to the invention;

FIG. 6 is a schematic side cross-sectional view of the overall roller assembly of the present invention;

FIG. 7 shows an enlarged schematic view of FIG. 1 at A;

FIG. 8 shows a schematic view of a scale viewing window configuration of the present invention;

shown in the figure: 1. a channel steel bracket; 11. mounting a plate; 12. a first chute; 13. a second chute; 2. a bearing seat; 3. a bracket; 31. a transverse bracket; 32. an inclined bracket; 4. an operation panel; 5. a scale observation window; 51. a transverse scale bar; 6. a locking seat; 7. an angle limiting component; 71. a slide plate; 72. a stopper plate; 721. a first vertical plate; 722. a second vertical plate; 73. a guide post; 731. a vertical scale bar; 74. a locking assembly; 741. connecting plates; 742. an upper positioning block; 743. a lower positioning block; 8. clamping and positioning components; 81. a sleeve; 82. an inner baffle; 821. and an indicator needle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1, a monorail self-aligning idler assembly comprises a channel steel bracket 1, wherein mounting plates 11 are arranged at two ends of the channel steel bracket 1; a bearing seat 2 is welded at the center of the surface of the channel steel bracket 1; the welding mode can enable the bearing seat and the channel steel bracket to be connected into a whole, the service life is prolonged, and the problem that the joint is easy to loosen when the bearing seat is positioned by a screw in the prior art is solved;

the top of the bearing seat 2 is rotatably connected with a bracket 3, and a roller is arranged at the top of the bracket 3; the bearing seat is rotationally connected with the roller, so that the bracket can drive the roller to swing, and deviation prevention correction is realized;

the section of the end part of the bracket 3 is inverted V-shaped; the bracket with the inverted V-shaped structure can be abutted against the angle limiting assembly to realize deflection constraint positioning; the vertical angle limiting assembly can extend into the bracket and can stop the bracket from the inside, so that the rotation angle of the bracket is restricted;

first sliding grooves 12 are symmetrically formed in the surface of the channel steel support 1, an angle limiting assembly 7 is slidably mounted inside each first sliding groove 12, the top end of each angle limiting assembly 7 extends into the corresponding bracket 3, the top end of each angle limiting assembly 7 is conical and is matched with the shape of the corresponding bracket 3, the angle limiting assemblies 7 and the corresponding brackets 3 are located on the same vertical central line, and the angle limiting assemblies 7 and the inner walls of the corresponding brackets 3 are arranged at intervals; the angle limiting assemblies 7 in a sliding state are used for changing the swinging angle of the bracket 3; when the angle limiting assembly moves, the swinging angle of the bracket also changes; when the spacing subassembly of angle was located inner, the bracket swing angle was the biggest, and is exemplary: the swing range is 0-30, and when the angle limiting component is located at the outermost end, the swing angle of the bracket is minimum, and the swing range is exemplarily as follows: the swing range is 0-10 degrees, so that the swing correction range of the bracket is greatly improved, and the bracket can be adjusted to an optimal correction angle according to the field deflection state; meanwhile, when the correction is carried out, only the left and right movement is needed, and the operation is simple and convenient.

As shown in fig. 4, the bracket 3 includes a horizontal bracket 31 and an inclined bracket 32 which are integrally formed, the inclined bracket 32 is symmetrically connected to two ends of the horizontal bracket 31, and an included angle between the horizontal bracket 31 and the inclined bracket 32 is 120-150 °; the design of the transverse bracket and the inclined bracket can simultaneously support two inclined brackets and a horizontal transverse bracket so as to support the V-shaped conveying belt; the top of the inclined bracket and the top of the transverse bracket are both provided with rollers.

As shown in fig. 1 and 2, the angle limiting assembly 7 includes a sliding plate 71, a stopper plate 72, and a guide post 73; a guide post 73 is vertically arranged on the bottom surface of the sliding plate 71, the sliding plate 71 is attached to the surface of the channel steel support 1, the guide post 73 vertically penetrates through the first sliding groove 12 in a sliding manner, a stop plate 72 is vertically arranged on the surface of the inner end of the sliding plate 71, and the top end of the stop plate 72 extends into the inverted V-shaped groove of the bracket 3; the guide post can extend into the first sliding chute, so that the sliding plate can stably and accurately move without left and right deviation; the stop plate is capable of restraining the bracket from the inside, defining the deflection angle of the bracket.

As an improvement of the above technical solution, the stopper plate 72 includes a first vertical plate 721 and a second vertical plate 722, the first vertical plate 721 is vertically disposed at one end of the surface of the sliding plate 71, the top end of the first vertical plate 721 is rotatably connected to the second vertical plate 722, the top end of the second vertical plate 722 is tapered, the second vertical plate 722 and the sliding plate 71 are fixed by a locking assembly 74, the locking assembly 74 is used for supporting the second vertical plate 722 at different angles, the second vertical plate 722 in a vertical state vertically extends into the transverse bracket 31, and the second vertical plate 722 in an inclined state vertically extends into the inclined bracket 32; the design of the first vertical plate and the second vertical plate enables the stop plate to be divided into two sections, so that the first vertical plate can be rotated to a vertical state and embedded into the transverse bracket for stopping, and can also be rotated to an inclined state and embedded into the inclined bracket for stopping; the positioning requirement of the inclined bracket is met, if the second vertical plate also extends into the bracket in a vertical state, the upper and lower widths of the bracket and the second vertical plate are inconsistent, only the lower short-distance part can be stopped, the stopping surface is too few, and the stopping strength is insufficient; by adopting the design, the stop plate can be adjusted in the transverse bracket and can also be moved into the inclined bracket to be adjusted, so that the range of the adjusting angle is further expanded, and the deviation-preventing correcting angle can be controlled in a smaller range.

As shown in fig. 3, the area between the tapered structure of the second riser 722 and the inverted V-shaped groove of the bracket 3 is a swing gap, and the width of each position in the swing gap is the same; the width is the same, the deflection stability can be improved, the problems of non-cooperative motion and insufficient collision strength caused by different upper and lower widths of the bracket during deflection are avoided, and the consistency of motion and collision is ensured; the swing gap is l in fig. 3;

as an improvement of the above technical solution, a swing gap between the second vertical plate 722 and the horizontal bracket 31 is a first swing gap, a swing gap between the second vertical plate 722 and the inclined bracket 32 is a second swing gap, and a width of the first swing gap is the same as a width of the second swing gap; guarantee that first swing clearance, second swing clearance are the same, can guarantee the uniformity of adjusting, the accurate control swing angle of being convenient for.

As shown in fig. 2 to 5, the locking assembly 74 includes a connecting plate 741, an upper positioning block 742 and a lower positioning block 743, the upper positioning block 742 is disposed on an outer wall of the second vertical plate 722, the lower positioning block 743 is mounted on a top surface of the sliding plate 71 by a screw, a top end of the connecting plate 741 is rotatably connected to the upper positioning block 742, and a bottom end of the connecting plate 741 is rotatably connected to the lower positioning block 743; the upper positioning block is fixed on the stop plate, and the lower positioning block is positioned through a screw, so that the supporting angle of the connecting plate can be adjusted, and the positioning requirements of the second vertical plate in a vertical state and an inclined state are met; the sliding plate 71 is provided with two screw holes matched with each other.

As shown in fig. 2, the outer wall of the guide post 73 is provided with a vertical scale 731, the outer wall of the guide post 73 is vertically slidably sleeved with a clamping and positioning component 8, and the guide post 73 is used for changing the height of the second vertical plate 722; due to the design of the vertical scale bars, an operator can conveniently and accurately adjust the extending length of the guide post, so that the support requirement of the inclined bracket is met, and the consistency between the first swing gap and the second swing gap is ensured; if the guide post is not vertically adjusted, the inner width of the second swing gap may not be uniform, and likewise, may not be uniform with the inner width of the first swing gap.

As shown in fig. 2 and 7, the clamping and positioning assembly 8 includes a sleeve 81 and an inner baffle 82, the sleeve 81 is slidably sleeved on an outer wall of the guide post 73, the sleeve 81 is fixed on the guide post 73 by a screw, the inner baffle 82 is vertically arranged on a top side wall of the sleeve 81, the inner baffle 82 abuts against an inner bottom surface of the channel steel support 1, a second sliding groove 13 is formed in a side surface of the channel steel support 1, a cross of the inner baffle 82 is intersected and slidably penetrates through the second sliding groove 13, a locking seat 6 is arranged on a side wall of the channel steel support 1, the locking seat 6 is located at the bottom of the second sliding groove 13, an outward extending portion of the inner baffle 82 abuts against a surface of the locking seat 6, and an outward extending portion of the inner baffle 82 is fixed on the locking seat 6 by a screw; the guide post can slide up and down in the sleeve for adjustment, and the sleeve positions the guide post through a screw; the inner baffle plate extends into the second sliding groove, so that the whole clamping and positioning assembly can stably and accurately move transversely, and when the inner baffle plate is fixed with the locking seat, the sleeve can be positioned, and the whole angle limiting assembly can be positioned; meanwhile, the inner baffle extends outwards and is arranged at the side part of the channel steel bracket, so that the movement and the operation of workers are convenient, a nut does not need to be screwed at the bottom of the channel steel bracket, the operation is simple and convenient, the operation is convenient, and the position of the angle limiting assembly is observed at the same time; the stop plate is fixed on the horizontal locking seat through screws, and the process has large operation space and simple and convenient positioning.

As shown in fig. 8, a scale observation window 5 is arranged on a side wall of the channel steel bracket 1, the scale observation window 5 is arranged at the top of the second sliding groove 13, a transverse scale strip 51 is arranged on an inner wall of the scale observation window 5, an indication needle 821 is vertically arranged on the surface of the inner baffle 82, the indication needle 821 extends into the scale observation window 5, and the indication needle 821 points to the transverse scale strip 51; the horizontal scale bar is designed to indicate the moving position of the angle limiting assembly, and the scale number represents the swing angle range of the bracket, so that the operation of workers is facilitated, and the precision is ensured; the design of the external scale observation window 5 can protect the scales and prevent the scales from being polluted and damaged by transported objects; the design of the indicating needle can make the reading more intuitive.

The distribution lengths of the second sliding groove, the first sliding groove, the locking seat and the scale observation window are the same.

Whole bearing roller group adopts 304 stainless steel to make, applicable in: conveying magnetic materials, conveying acid-base salt materials and conveying semi-fluid materials; including humid environments, water-drenching environments, and severe environments with high dust and smoke; can be directly washed by water; no preservative treatment is needed for life.

The invention has two modes in implementation:

during initial installation, determining the initial position of the angle limiting assembly 7 according to the initial offset range of the belt; at this time, the second vertical plate 722 is in a vertical state and extends into the transverse bracket 31, and the angle limiting component 7 is shown in fig. 4;

along with the production, the original deviation correction angle does not accord with the deviation amount, and a larger or smaller deviation correction angle is needed;

if a larger deviation-correcting angle is needed, the inward movement angle limiting assembly 7 is needed, the inner baffle 82 is moved along the second sliding groove 13, the indicating needle 821 moves in the scale observation window 5, and when the indicating needle 821 points to the deviation-correcting angle of 30 degrees, a screw is screwed up, so that the inner baffle 82 is fixed on the locking seat 6; in the adjusting process, the second vertical plate 722 and the guide column 73 do not need to be adjusted;

when a smaller deviation correcting angle is needed, if the deviation correcting angle is still supported in the transverse bracket 31, the process is the same as the process, and only the angle limiting assembly 7 is moved outwards;

when the restraint angle of the transverse bracket 31 is insufficient and still larger, and the transverse bracket needs to be moved to the inclined bracket 32, the lower positioning block 743 is moved, the second vertical plate 722 is adjusted to be in an inclined state and can be vertically distributed with the inclined bracket 32, the lower positioning block 743 is fixed by screwing up the screw, and the angle limiting assembly 7 is in a state shown in fig. 5; then, the angle limiting assembly 7 is moved transversely, the inner baffle 82 is fixedly connected with the locking seat 6 after the transverse scale bar 51 is observed to reach the required deviation correcting angle; in order to ensure the consistency of the swing clearance, the extension length of the guide post 73 is vertically adjusted, after the vertical scale bar 731 is observed to a required value, the sleeve 81 is fixedly connected with the guide post 73, so that the adjustment precision can be ensured, and the swing clearance cannot be changed.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a single track type is from aligning idler subassembly which characterized in that: the steel channel bracket comprises a steel channel bracket (1), wherein mounting plates (11) are arranged at two ends of the steel channel bracket (1); a bearing seat (2) is welded at the center of the surface of the channel steel support (1), the top of the bearing seat (2) is rotatably connected with a bracket (3), and a roller is installed at the top of the bracket (3); the section of the end part of the bracket (3) is inverted V-shaped;

first sliding grooves (12) are symmetrically formed in the surface of the channel steel support (1), an angle limiting component (7) is slidably mounted inside each first sliding groove (12), the top end of each angle limiting component (7) extends into the corresponding bracket (3), the top end of each angle limiting component (7) is conical and is matched with the shape of the corresponding bracket (3), the angle limiting components (7) and the corresponding brackets (3) are located on the same vertical central line, and the angle limiting components (7) and the inner walls of the corresponding brackets (3) are arranged at intervals; the spacing setting of interval is used for making the spacing subassembly of angle can swing and prevent the off tracking and correct, and the spacing subassembly of angle (7) of sliding state is used for changing the swing angle of bracket (3).

2. A monorail type self-aligning idler assembly as defined in claim 1, wherein: the bracket (3) comprises a transverse bracket (31) and an inclined bracket (32) which are of an integral structure, and the two ends of the transverse bracket (31) are symmetrically connected with the inclined bracket (32).

3. A monorail type self-aligning idler assembly as defined in claim 2, wherein: the angle limiting assembly (7) comprises a sliding plate (71), a stop plate (72) and a guide column (73); the bottom surface of slide (71) is equipped with guide post (73) perpendicularly, slide (71) laminate in the surface of channel-section steel support (1), guide post (73) vertical slip runs through first spout (12), the inner surface of slide (71) is equipped with backstop board (72) perpendicularly, the top of backstop board (72) stretches into in the type of falling V inslot of bracket (3).

4. A monorail type self-aligning idler assembly as defined in claim 3, wherein: backstop board (72) include first riser (721) and second riser (722), the surperficial one end of slide (71) is located perpendicularly in first riser (721), the top of first riser (721) is rotated and is connected second riser (722), the top of second riser (722) is the toper, it is fixed through locking Assembly (74) between second riser (722), slide (71), locking Assembly (74) are used for supporting second riser (722) of different angles, vertical state second riser (722) stretch into perpendicularly in horizontal bracket (31), the tilt state second riser (722) stretch into perpendicularly in oblique bracket (32).

5. A monorail type self-aligning idler assembly as defined in claim 4, wherein: the area between the conical structure of the second vertical plate (722) and the inverted V-shaped groove of the bracket (3) is a swing gap, and the width of each position in the swing gap is the same.

6. A monorail type self-aligning idler assembly as defined in claim 5, wherein: swing clearance between second riser (722) and horizontal bracket (31) is first swing clearance, swing clearance between second riser (722) and oblique bracket (32) is the second swing clearance, the width in first swing clearance is the same with the width in second swing clearance.

7. A monorail type self-aligning idler assembly as defined in claim 4, wherein: the locking assembly (74) comprises a connecting plate (741), an upper positioning block (742) and a lower positioning block (743), the upper positioning block (742) is arranged on the outer wall of the second vertical plate (722), the lower positioning block (743) is installed on the top surface of the sliding plate (71) through screws, and the top end of the connecting plate (741) is rotatably connected with the upper positioning block (742) and the bottom end of the connecting plate (741) is rotatably connected with the lower positioning block (743).

8. A monorail type self-aligning idler assembly as defined in claim 4, wherein: the outer wall of guide post (73) is equipped with vertical scale (731), the outer wall vertical sliding sleeve of guide post (73) is equipped with centre gripping locating component (8), guide post (73) are used for changing the height of second riser (722).

9. A monorail type self-aligning idler assembly as defined in claim 8, wherein: the clamping and positioning assembly (8) comprises a sleeve (81) and an inner baffle plate (82), the sleeve (81) is sleeved on the outer wall of the guide post (73) in a sliding way, the sleeve (81) is fixed on the guide post (73) through a screw, an inner baffle (82) is vertically arranged on the side wall of the top end of the sleeve (81), the inner baffle (82) is abutted against the inner bottom surface of the channel steel bracket (1), a second sliding groove (13) is formed in the side face of the channel steel support (1), the inner baffle (82) is crossed and slides through the second sliding groove (13), the side wall of the channel steel bracket (1) is provided with a locking seat (6), the locking seat (6) is positioned at the bottom of the second sliding groove (13), the outer extension part of the inner baffle (82) is jointed with the surface of the locking seat (6), the outer extending part of the inner baffle (82) is fixed on the locking seat (6) through screws.

10. A monorail type self-aligning idler assembly as defined in claim 9, wherein: the lateral wall of channel-section steel support (1) is equipped with scale observation window (5), the top of second spout (13) is located in scale observation window (5), scale observation window (5) inner wall is equipped with horizontal scale strip (51), the perpendicular surface of interior baffle (82) is equipped with pointer (821), pointer (821) stretch into the inside in scale observation window (5), pointer (821) point to in horizontal scale strip (51).