CN113464614B

CN113464614B - Belt intelligence overspeed device tensioner

Info

Publication number: CN113464614B
Application number: CN202110699178.XA
Authority: CN
Inventors: 汪治鑫; 苗新利; 吴冬; 简·马克·玖塞夫·杜加
Original assignee: Suzhou Hybiome Biomedical Engineering Co Ltd
Current assignee: Suzhou Hybiome Biomedical Engineering Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-07-05
Anticipated expiration: 2041-06-23
Also published as: CN113464614A

Abstract

The application relates to a belt intelligence overspeed device tensioner, include: the bottom plate is provided with a linear guide rail; the idler wheel assembly comprises an idler wheel body, an idler wheel sliding seat and a linear sliding block, wherein the idler wheel body is arranged on the idler wheel sliding seat, the linear sliding block is fixed on one side of the idler wheel sliding seat, and the linear sliding block is arranged on the linear guide rail in a sliding manner; the rotary position display is connected to one side of the idle wheel sliding seat or the linear sliding block, a spring adjusting threaded sleeve is arranged in the rotary position display, and the rotary position display can read the rotating angle of the spring adjusting threaded sleeve; the spring adjusting bolt is connected with the spring adjusting threaded sleeve through threads; the spring adjusting threaded sleeve can drive the spring adjusting bolt to axially move when rotating; and one end of the extension spring is connected with the spring adjusting bolt, and the other end of the extension spring is connected with the bottom plate. The tensioning force provided by the tensioning device can be accurately and conveniently adjusted through the adjusting bolt, and the adjusted amount is accurately displayed through the rotary position display.

Description

Belt intelligence overspeed device tensioner

Technical Field

The application belongs to the technical field of drive mechanism, especially, relate to a belt intelligence overspeed device tensioner.

Background

Among the several drive systems that are common, include: the transmission modes comprise chain transmission, worm and gear transmission, gear rack transmission, synchronous belt transmission and flat belt transmission which have advantages and disadvantages, wherein the synchronous belt transmission and the flat belt transmission have wide use due to the advantages of low maintenance, easy installation, low cost and the like.

The synchronous belt has a fixed transmission ratio and higher transmission precision compared with a flat belt, but both belong to the belt transmission category and have a common characteristic: a flexible belt body. The belt drive system has a significant disadvantage: the flexible body is easily deformed and elongated, thereby causing the entire transmission system to fail. In order to overcome the defect, a common solution in the market is to add a belt transmission system tensioning device, and according to the structure of the tensioning device, the following devices are mainly used:

1. a tension wheel is added between the driving wheel and the driven wheel, and the added tension wheel is manually adjusted or automatically adjusted through a spring;

the method has the following defects: the device has larger space and occupies space; the track of the belt body can be changed when the belt body needs to go round;

2. the driving wheel or the driven wheel is tensioned, and the mounting position of the driven wheel is adjustable in the extending direction of the belt body, so that the belt body is tensioned through the mounting position of the driven wheel;

the method has the following defects: the tensioning force during initial installation meets the requirement, but after the transmission system works for a period of time, the belt body is loosened, and at the moment, the tensioning method cannot adapt to the extension of the synchronous belt, so that the tensioning effect is lost;

3. a driven wheel self-adaptive tensioning device; the driven wheel end is fixed on a sliding seat which can move along the extension direction of the belt body, the sliding seat is connected with a fixed seat through a spring, and the spring keeps the tension of the synchronous belt;

the method has the following defects: the tension cannot be accurately adjusted; when the tensioning fails due to the failure of the spring, failure information cannot be acquired in real time.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: for solving among the prior art flexible area body easy deformation extension to make the problem that whole transmission system became invalid, thereby provide a belt intelligence overspeed device tensioner.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a belt intelligent tensioner comprising:

the base plate is provided with a linear guide rail;

the idler assembly comprises an idler body, an idler sliding seat and a linear sliding block, wherein the idler body is installed on the idler sliding seat, the linear sliding block is fixed on one side of the idler sliding seat, and the linear sliding block is installed on the linear guide rail in a sliding mode;

the rotary position display is connected to one side of the idle wheel sliding seat or the linear sliding block, a spring adjusting threaded sleeve is arranged in the rotary position display, and the rotary position display can read the rotating angle of the spring adjusting threaded sleeve;

the spring adjusting bolt is connected with the spring adjusting threaded sleeve through threads; the spring adjusting threaded sleeve can drive the spring adjusting bolt to axially move when rotating;

and one end of the extension spring is connected with the spring adjusting bolt, the other end of the extension spring is connected with the bottom plate, and the direction of tension of the extension spring on the spring adjusting bolt is opposite to the direction of tension of a belt borne by the idler wheel body.

Preferably, the intelligent belt tensioning device of the invention is characterized in that the base plate is provided with a groove, a pressing sensor is arranged in the groove, the upper end of the pressing sensor is provided with a pressing membrane, and the pressing membrane is exposed out of the upper surface of the base plate and forms a certain angle with the upper surface of the base plate;

the pressing diaphragm is located on the side of the idler wheel assembly facing the extension spring, and the higher the height of a point on the pressing diaphragm is, the farther the point is from the idler wheel assembly.

Preferably, in the intelligent belt tensioner of the present invention, the lower end of the idler carriage is a horizontal plane, and the pressing diaphragm is aligned with the lower end of the idler carriage.

Preferably, in the intelligent belt tensioner of the present invention, the idler pulley slider has a through hole for mounting the spring adjusting bolt, and the cross section of the through hole matches with the cross section of the spring adjusting bolt; one end of the spring adjusting bolt is a threaded section, the other end of the spring adjusting bolt is a ribbed section, the threaded section is connected with the spring adjusting threaded sleeve, and the cross section of the ribbed section is provided with a ridge angle to limit the spring adjusting bolt to rotate in the through hole.

Preferably, in the intelligent belt tensioning device, the end part with the edge section is provided with a spring connecting hole, two ends of the extension spring are provided with hooks, and one end of the extension spring is clamped into the spring connecting hole through the hook and is connected with the spring adjusting bolt.

Preferably, the base plate of the intelligent belt tensioning device is provided with a spring fixing pin, the side wall of the spring fixing pin is provided with a concave part, and the other end of the extension spring is clamped into the concave part of the spring fixing pin through a hook for fixing.

Preferably, in the intelligent belt tensioner of the present invention, one end of the spring adjustment threaded sleeve is exposed outside the rotary position display, and the cross section of the exposed end is polygonal.

Preferably, according to the intelligent belt tensioning device disclosed by the invention, limit pins are arranged on two sides of the idler pulley sliding seat or the linear sliding block, and the limit pins are fixed with the bottom plate or the linear guide rail.

Preferably, in the intelligent belt tensioning device, the idler sliding seat is connected with the idler pin of the idler body through a hexagon socket head cap screw, one side of the idler body is limited by the idler pin through a shaft clamp spring, and a deep groove ball bearing is arranged between the circumference of the idler pin and the idler body.

The invention has the beneficial effects that:

1. the tensioning device can automatically tension the belt, can overcome the deformation and elongation of the belt body within a certain range, automatically form the balance of the belt transmission system, ensure the belt transmission system to continuously and reliably run and reduce maintenance;

2. the tension force provided by the tension device can be accurately and conveniently adjusted through the adjusting bolt, and the adjusted amount is accurately displayed through the rotary position display;

3. when the tension force provided by the tension device is smaller than the minimum tension force set by the system, automatic alarm can be given through the pressing type sensor, replacement and maintenance are reminded, and stable operation of the belt transmission system is guaranteed.

Drawings

The technical solution of the present application is further explained below with reference to the drawings and the embodiments.

FIG. 1 is a schematic diagram of the overall structure of the front side of an intelligent belt tensioner in an embodiment of the present application;

FIG. 2 is a schematic view of the overall structure of the back of the intelligent belt tensioner of the embodiment of the present application;

FIG. 3 is a side view of a belt intelligent tensioner configuration of an embodiment of the present application;

FIG. 4 is a structural elevation view of a belt intelligent tensioner of an embodiment of the present application;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

FIG. 6 is a cross-sectional view A-A of FIG. 3;

FIG. 7 is a schematic view of a spring adjusting bolt according to an embodiment of the present application;

fig. 8 is a schematic view of a spring adjustment threaded sleeve according to an embodiment of the present application.

The reference numbers in the figures are:

101 a bottom plate;

102 a linear guide rail;

103 linear slide block;

104 an idler carriage;

105 idler pins;

106 an idler body;

107 deep groove ball bearings;

108, a clamp spring for a shaft;

109 spring adjusting bolts;

110 tension springs;

111 a spring fixing pin;

112 a rotary position display;

113 spring adjusting threaded sleeves;

114 a push type sensor;

115 belts;

116 a limit pin;

117 socket head cap screw.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Examples

The present embodiment provides a belt intelligent tensioning device, as shown in fig. 1-6, including:

the device comprises a bottom plate 101, wherein a linear guide rail 102 is arranged on the bottom plate 101;

the idler assembly comprises an idler body 106, an idler slide seat 104 and a linear sliding block 103, wherein the idler body 106 is installed on the idler slide seat 104, the linear sliding block 103 is fixed on one side of the idler slide seat 104, and the linear sliding block 103 is slidably installed on the linear guide rail 102;

a rotary position indicator 112 connected to one side of the idler pulley sliding seat 104 or the linear slider 103, wherein the rotary position indicator 112 has a spring adjusting threaded sleeve 113 therein, and the rotary position indicator 112 can read the rotation angle of the spring adjusting threaded sleeve 113;

a spring adjusting bolt 109 which is connected with the spring adjusting threaded sleeve 113 through threads; when the spring adjusting threaded sleeve 113 rotates, the spring adjusting threaded sleeve can drive the spring adjusting bolt 109 to axially move;

and an extension spring 110 having one end connected to the spring adjustment bolt 109 and the other end connected to the base plate 101, wherein a pulling force of the extension spring 110 on the spring adjustment bolt 109 is opposite to a direction of a tension of the belt 115 applied to the idler body 106.

In the belt intelligent tensioning device of the embodiment, the idler pulley assembly is slidably mounted on the linear guide rail 102 through the linear sliding block 103, so that the tensioning force of the belt 115 mounted on the idler pulley body 106 can be adjusted, and the tension spring 110 can provide a tension force for tensioning the belt 115 to the idler pulley assembly, so that the tension force can overcome the deformation and elongation of the belt body within a certain range, and the belt transmission system balance is automatically formed. The spring adjusting threaded sleeve 113 can axially move the spring adjusting bolt 109 by rotating, i.e., change the stretching degree of the stretching spring 110, and increase or decrease the stress of the belt 115, i.e., realize the adjustment of the tension of the belt 115. Wherein the rotary position indicator 112 is an angular position indicator that can read the rotation angle of the spring adjustment threaded sleeve 113 to precisely identify the amount of adjustment and thereby precisely pre-tension the belt drive system.

Preferably, as shown in fig. 2, in the intelligent belt tensioning device of this embodiment, a groove is formed in the bottom plate 101, a push sensor 114 is disposed in the groove, and a pressing film is disposed at an upper end of the push sensor 114, and is exposed out of the upper surface of the bottom plate 101 and forms a certain angle with the upper surface of the bottom plate 101;

the pressing diaphragm is located on the side of the idler assembly facing the extension spring 110, and the higher the height of a point on the pressing diaphragm is, the farther the point is from the idler assembly. Specifically, the lower end of the idler carriage 104 is a horizontal plane, and the pressing membrane is aligned with the lower end of the idler carriage 104. The push sensor 114 functions to: when the belt 115 is too aged, the lower end of the idler pulley sliding seat 104 will gradually squeeze the pressing diaphragm under the action of the extension spring 110, which is equivalent to that the tension force provided by the tensioning device is smaller than the minimum tension force set by the system, and further, an alarm can be connected to the pressing sensor 114, and the structure automatically alarms through the pressing sensor to remind of replacement and maintenance, thereby ensuring the stable operation of the belt transmission system.

Preferably, in the belt intelligent tensioning device of the present embodiment, as shown in fig. 6, a through hole for mounting the spring adjusting bolt 109 is formed in the idler pulley slide 104, and the cross-sectional shape of the through hole matches with the cross-sectional shape of the spring adjusting bolt 109; as shown in fig. 7, one end of the spring adjusting bolt 109 is a threaded section, and the other end is a ribbed section, the threaded section is connected to the spring adjusting threaded sleeve 113, and the cross section of the ribbed section has a ridge angle to limit the spring adjusting bolt 109 from rotating in the through hole.

Preferably, in the intelligent belt tensioning device of this embodiment, as shown in fig. 7, the end portion having the ridge section has a spring connecting hole, two ends of the extension spring 110 have hooks, and one end of the extension spring 110 is clipped into the spring connecting hole through the hook and connected to the spring adjusting bolt 109.

Preferably, in the intelligent belt tensioner of the present embodiment, as shown in fig. 1, the base plate 101 has a spring fixing pin 111, a side wall of the spring fixing pin 111 has a recessed portion, and the other end of the extension spring 110 is fastened to the recessed portion of the spring fixing pin 111 by a hook.

Preferably, in the belt intelligent tensioning device of this embodiment, as shown in fig. 6 and 8, one end of the spring adjusting threaded sleeve 113 is exposed outside the rotary position display 112, and the cross-sectional shape of the exposed end is polygonal, preferably hexagonal, so that it is convenient to adjust the spring adjusting threaded sleeve by using a tool such as a wrench.

Preferably, in the intelligent belt tensioner of this embodiment, as shown in fig. 1, limit pins 116 are disposed on two sides of the idler slider 104 or the linear slider 103, and the limit pins 116 are fixed to the base plate 101 or the linear guide 102. The spacing pin 116 is used to ensure that the idler assemblies do not slip off the line rails due to a force imbalance in the special case of a failure of the entire belt drive system.

Preferably, in the intelligent belt tensioner of this embodiment, as shown in fig. 1 to 6, the idler sliding seat 104 is connected to an idler pin 105 of the idler body 106 through an inner hexagon socket head cap screw 117, one side of the idler body 106 is limited to the idler pin 105 by a shaft clamp spring 108, and a deep groove ball bearing 107 is arranged between the circumference of the idler pin 105 and the idler body 106.

In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. An intelligent belt tensioning device, comprising:

the device comprises a bottom plate (101), wherein a linear guide rail (102) is arranged on the bottom plate (101);

the idler assembly comprises an idler body (106), an idler sliding seat (104) and a linear sliding block (103), wherein the idler body (106) is installed on the idler sliding seat (104), the linear sliding block (103) is fixed on one side of the idler sliding seat (104), and the linear sliding block (103) is installed on the linear guide rail (102) in a sliding mode;

a rotary position display (112) connected to one side of the idler pulley sliding seat (104) or the linear sliding block (103), wherein a spring adjusting threaded sleeve (113) is arranged in the rotary position display (112), and the rotary position display (112) can read the rotation angle of the spring adjusting threaded sleeve (113);

the spring adjusting bolt (109) is connected with the spring adjusting threaded sleeve (113) through threads; the spring adjusting threaded sleeve (113) can drive the spring adjusting bolt (109) to axially move when rotating;

one end of the extension spring (110) is connected with the spring adjusting bolt (109), the other end of the extension spring is connected with the bottom plate (101), and the direction of tension of the extension spring (110) on the spring adjusting bolt (109) is opposite to the direction of tension of a belt on the idler pulley body (106);

the bottom plate (101) is provided with a groove, a pressing sensor (114) is arranged in the groove, the upper end of the pressing sensor (114) is provided with a pressing film, and the pressing film is exposed out of the upper surface of the bottom plate (101) and forms a certain angle with the upper surface of the bottom plate (101);

the pressing membrane is positioned on one side of the idler wheel assembly, which faces the extension spring (110), and the higher the height of one point on the pressing membrane is, the farther the distance from the idler wheel assembly is.

2. The intelligent belt tensioner as in claim 1, wherein a lower end of the idler carriage (104) is a horizontal plane and the pressing diaphragm is aligned with the lower end of the idler carriage (104).

3. The intelligent belt tensioner of any one of claims 1-2, wherein the idler slide (104) has a through hole therein for mounting the spring adjustment bolt (109), the through hole having a cross-sectional shape that matches the cross-sectional shape of the spring adjustment bolt (109); one end of the spring adjusting bolt (109) is a threaded section, the other end of the spring adjusting bolt is a ribbed section, the threaded section is connected with the spring adjusting threaded sleeve (113), and the cross section of the ribbed section is provided with a ridge angle to limit the spring adjusting bolt (109) to rotate in the through hole.

4. The intelligent belt tensioning device as claimed in claim 3, wherein the end with the edge section is provided with a spring connecting hole, the two ends of the extension spring (110) are provided with hooks, and one end of the extension spring (110) is clamped into the spring connecting hole through the hooks to be connected with the spring adjusting bolt (109).

5. The intelligent belt tensioning device as claimed in claim 4, wherein the base plate (101) is provided with a spring fixing pin (111), the side wall of the spring fixing pin (111) is provided with a concave part, and the other end of the extension spring (110) is clamped into the concave part of the spring fixing pin (111) through a hook for fixing.

6. The intelligent belt tensioner as claimed in any one of claims 1-2, wherein one end of the spring adjustment threaded sleeve (113) is exposed outside the rotary position indicator (112), and the exposed end has a polygonal cross-sectional shape.

7. Intelligent belt tensioner according to any of claims 1-2, characterized in that the idler slide (104) or linear slide (103) is provided with a stop pin (116) on both sides, said stop pin (116) being fixed to the base plate (101) or linear guide (102).

8. The intelligent belt tensioner as claimed in any one of claims 1-2, wherein the idler slide (104) is connected with an idler pin (105) of the idler body (106) through a hexagon socket head cap screw (117), one side of the idler body (106) is limited with the idler pin (105) through a shaft clamp spring (108), and a deep groove ball bearing (107) is arranged between the circumference of the idler pin (105) and the idler body (106).