CN114135640A

CN114135640A - Belt tensioning device, belt conveying device and robot

Info

Publication number: CN114135640A
Application number: CN202111423995.9A
Authority: CN
Inventors: 孔令超; 莫子扬; 蔡武
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-03-04
Anticipated expiration: 2041-11-26
Also published as: CN114135640B

Abstract

The application relates to a belt tensioning device, a belt conveying device and an air-conditioning range hood, wherein the belt tensioning device comprises a mounting seat for mounting a belt pulley; the adjusting base is positioned on one side of the mounting base along a first direction, the mounting base can move along a second direction relative to the adjusting base, and the first direction is intersected with the second direction; the belt tensioning device further comprises an adjusting piece, the adjusting piece is arranged on one of the mounting seat and the adjusting base, the other of the mounting seat and the adjusting base is provided with a plurality of matching portions, the matching portions are arranged at intervals along the second direction, and the adjusting piece can be matched with one of the matching portions to form an adjusting position of the mounting seat positioned on the adjusting base. Only need drive the mount pad and remove along the second direction relative regulation base, can realize the cooperation of regulating part and cooperation portion, and then accomplish the regulation of belt tensile force, consequently, need not to use the tensiometer to take-up the installation, only just can accomplish the installation operation alone, simplified the regulation process.

Description

Belt tensioning device, belt conveying device and robot

Technical Field

The application relates to the technical field of belt transmission devices, in particular to a belt tensioning device, a belt conveying device and a robot.

Background

The belt transmission is the most widely used transmission mechanism in the field of mechanical transmission, and has the advantages of suitability for transmission with larger center distance, good flexibility, capability of buffering impact, vibration absorption, simple structure, low cost and the like, and is generally applied to joint motion of robots.

The robot has higher requirement to the hold-in range, needs carry out the regulation of belt tensile force after the hold-in range installation to make the hold-in range have higher transmission precision.

However, in the existing belt tension adjusting mode, the belt pulley is pulled to a preset tension value by using the tensiometer and then fastened by fastening the screw, and the belt pulley can be installed and completed in a matched manner by two persons, so that the adjusting process is relatively complicated.

Disclosure of Invention

In view of the above, it is desirable to provide a belt tensioner, a belt conveyor, and a robot that can simplify an adjustment process, in order to solve the problem that the adjustment process of the conventional belt tension adjustment method is relatively complicated.

The application provides a belt tensioning device, includes:

the mounting seat is used for mounting the belt pulley; and

the adjusting base is positioned on one side of the mounting base along a first direction, the mounting base can move along a second direction relative to the adjusting base, and the first direction is intersected with the second direction;

the belt tensioning device further comprises an adjusting piece, the adjusting piece is arranged on one of the mounting seat and the adjusting base, the other of the mounting seat and the adjusting base is provided with a plurality of matching portions, the matching portions are arranged at intervals along the second direction, and the adjusting piece can be matched with one of the matching portions to form an adjusting position of the mounting seat positioned on the adjusting base.

Above-mentioned belt tightener through setting up along a plurality of cooperation portions of second direction spaced, moves the in-process along the second direction at the mount pad relative adjustment base, can make the regulating part correspond and cooperate with one of them cooperation portion to make the mount pad be located the adjustment base, at this moment, can drive the belt and reach predetermined tensile force, and then realize tensile force and adjust. The belt tensioning device only needs to drive the installation seat to move relative to the adjusting base along the second direction, and therefore the matching of the adjusting piece and the matching part can be achieved, the adjustment of the tensile force of the belt is completed, therefore, tensioning installation is not needed to be carried out by using a tensiometer, installation operation can be completed only by one person, and the adjusting process is simplified.

In one embodiment, one of the mating portion and the adjustment member includes a first recess, and the other of the mating portion and the adjustment member includes a projection, the projection being capable of mating with the first recess.

In one embodiment, one of the mounting seat and the adjusting base is further provided with a guide part, and the guide part is positioned on one side of the plurality of matching parts and is connected with the plurality of matching parts;

the adjusting piece can be movably matched with the guide part along the second direction so as to guide the mounting seat to move relative to the adjusting base.

In one embodiment, the guiding part comprises a second groove, the matching part comprises a first groove, the second groove is communicated with the plurality of first grooves, and the adjusting part comprises a protrusion which can be matched with the second groove and the first groove.

In one embodiment, the belt tensioner further comprises a first locking member disposed on the adjustment member and a second locking member disposed on the adjustment base or the mounting seat, the first locking member and the second locking member being capable of cooperating when the mounting seat is in the adjustment position to lock the mounting seat in the adjustment position.

In one embodiment, the second locking member is disposed on the mating portion; or

The adjusting piece is arranged on one of the mounting seat and the adjusting base through the matching of the first locking piece and the second locking piece.

In one embodiment, the first locking member includes a first threaded portion, and the second locking member includes a second threaded portion, the first threaded portion and the second threaded portion being threadably lockable.

In one embodiment, the adjusting base comprises a plurality of adjusting pieces, the adjusting pieces comprise a plurality of groups, and the plurality of matching parts comprise a plurality of groups;

the adjusting bases are arranged at intervals, each adjusting piece is correspondingly arranged on one of the mounting base and the corresponding adjusting base, the other one of the mounting base and the corresponding adjusting base is provided with a group of multiple matching parts, and each adjusting piece can be matched with one matching part of the corresponding group of multiple matching parts.

In one embodiment, the adjusting base comprises at least three, the adjusting piece comprises at least three, and the plurality of matching parts comprises at least three groups;

at least three of all the adjusting bases are arranged in a triangle.

In another aspect of the present application, a belt transmission device is further provided, which includes a housing, and a first belt pulley, a second belt pulley, a belt and the above belt tensioning device all disposed in the housing;

first belt pulley and second belt pulley set up along the second direction interval, and belt transmission connects in first belt pulley and second belt pulley, and first belt pulley is installed on the mount pad, adjusts the base and is fixed in the shell.

Above-mentioned belt transmission, through setting up along a plurality of cooperation portions of second direction spaced, at the mount pad relative regulation base along the second direction removal in-process, can make the regulating part correspond and cooperate with one of them cooperation portion to make the mount pad be located the regulation base, at this moment, can drive the belt and reach predetermined tensile force, and then realize tensile force and adjust. The belt transmission device only needs to drive the installation seat to move relative to the adjusting base along the second direction, and can realize the matching of the adjusting piece and the matching part, so that the adjustment of the tensile force of the belt is completed, therefore, the tension meter is not needed to be used for tensioning and installation, the installation operation can be completed only by one person, and the adjusting process is simplified.

In another aspect of the present application, there is also provided a robot including the above belt transmission device.

Above-mentioned robot, through setting up along a plurality of cooperation portions of second direction spaced, move the in-process along the second direction at the mount pad relative regulation base, can make the regulating part correspond and cooperate with one of them cooperation portion to make the mount pad be located the regulation base, at this moment, can drive the belt and reach predetermined tensile force, and then realize tensile force and adjust. The robot of this application only needs to drive the mount pad and removes along the second direction relative to adjusting the base, can realize the cooperation of regulating part and cooperation portion, and then accomplishes the regulation of belt tensile force, consequently, need not to use the tensiometer to take-up the installation, only just can accomplish the installation operation alone, has simplified the regulation process.

Drawings

Fig. 1 is a schematic perspective view of a belt drive device according to an embodiment of the present application;

FIG. 2 is an exploded schematic view of the belt drive assembly shown in FIG. 1;

FIG. 3 is an enlarged schematic view of the belt drive assembly of FIG. 2 at A;

FIG. 4 is a schematic cross-sectional view of the belt drive of FIG. 1;

FIG. 5 is an exploded view of a belt drive assembly according to another embodiment of the present application;

FIG. 6 is an enlarged schematic view of the belt drive of FIG. 5 at B;

FIG. 7 is a schematic top view of a part of the structure of the belt drive apparatus shown in FIG. 1;

description of reference numerals:

the belt tensioner 100, the mounting seat 10, the adjustment base 20, the fitting portion 21, the first groove 211, the guide portion 22, the second groove 221, the adjustment member 30, the protrusion 31, the first locking member 40, the second locking member 50, the belt transmission device 200, the first pulley 210, the second pulley 220, the belt 230, the first housing 240, and the accommodation chamber 250.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships 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 and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Furthermore, the drawings are not 1: 1, and the relative dimensions of the various elements in the figures are drawn for illustration only and not necessarily to true scale.

Fig. 1 shows a schematic perspective view of a belt drive according to an embodiment of the present application; FIG. 2 is an exploded schematic view of the belt drive of FIG. 1; fig. 3 shows an enlarged schematic view of the belt drive of fig. 2 at a. For the purpose of illustration, the drawings show only the structures associated with embodiments of the invention.

Referring to fig. 1, an embodiment of the present application provides a belt tensioner 100, which includes a mounting base 10, an adjusting base 20, and an adjusting member 30. The belt tensioner 100 of the present application is applied to the belt transmission 200 for adjusting the tension of the belt 230, and can be applied to the field of robots, such as a robot arm of a robot, but the belt tensioner 100 of the present application is not limited thereto.

The mounting seat 10 of the application is used for mounting a belt pulley, the adjusting base 20 is located on one side of the mounting seat 10 along a first direction, the mounting seat 10 can move along a second direction relative to the adjusting base 20, and the first direction is intersected with the second direction. Specifically, the belt transmission device 200 includes a first pulley 210 and a second pulley 220 disposed at an interval from each other, and the mounting base 10 is used for mounting the second pulley 220, wherein the second direction is parallel to a line connecting a center of the first pulley 210 and a center of the second pulley 220, and the first direction is parallel to an axial direction of the second pulley 220.

The adjusting member 30 is disposed on the mounting base 10, the adjusting base 20 is provided with a plurality of matching portions 21, the matching portions 21 are disposed at intervals along the second direction, and the adjusting member 30 can be matched with one of the matching portions 21 to form an adjusting position where the mounting base 10 is positioned on the adjusting base 20. In particular to the present application, the fitting portion 21 includes three. It can be understood that since the adjustment base 20 has a plurality of fitting portions 21, the mount 10 has a plurality of adjustment positions. In another embodiment of the present application, the adjusting member 30 may be provided on the adjusting base 20, and the mounting base 10 may be provided with a plurality of engaging portions 21.

So, through setting up along a plurality of cooperation portions 21 of second direction interval, at mount pad 10 relative regulation base 20 along the second direction removal in-process, can make regulating part 30 correspond and cooperate with one of them cooperation portion 21 to make mount pad 10 be located regulation base 20, at this moment, can drive belt 230 and reach predetermined tensile force, and then realize tensile force and adjust. The belt tensioning device 100 of the application only needs to drive the installation seat 10 to relatively adjust the base 20 to move along the second direction, so that the matching of the adjusting part 30 and the matching part 21 can be realized, the tension of the belt is adjusted, therefore, the tension meter is not needed to be used for tensioning installation, the installation operation can be completed only by one person, and the adjusting process is simplified.

In addition, the mounting seat 10 has a plurality of adjustment positions located on the adjustment base 20, and therefore, the belt 230 also has a plurality of different tension forces. The belt tensioner 100 of the present application is capable of adjusting a plurality of different tension forces of the belt 230. In a specific operation, when the adjustment is required to be performed from one adjustment position to another adjustment position, the adjustment member 30 needs to be moved away from the current engagement portion 21 and then moved to the required engagement portion 21 along the second direction.

It should also be noted that the belt tensioner 100 of the present application is adaptable to belts 230 of different lengths, and thus, to different types of pulleys.

Referring again to fig. 3 and 4, in some embodiments, the cross-sectional shape of the adjustment base 20 along the first direction is trapezoidal, so that the installation of the installation seat 10 relative to the adjustment base 20 is more reliable.

In some embodiments, the mating portion 21 includes a first recess 211, and the adjustment member 30 includes a protrusion 31, the protrusion 31 being capable of mating with the first recess 211. The matching mode of the grooves and the protrusions is simple, and the matching is reliable, so that the installation seat 10 is stably positioned relative to the adjusting base 20. In other embodiments, it is also possible to provide that the fitting portion 21 includes the protrusion 31, and the adjusting member 30 includes the first groove 211, which is not limited herein.

In order to guide the adjusting member 30 to be engaged with the engaging portion 21, in some embodiments, when the adjusting base 20 is disposed on the plurality of engaging portions 21, the adjusting base 20 is further provided with a guiding portion 22, the guiding portion 22 is disposed at one side of the plurality of engaging portions 21 and connected to the plurality of engaging portions 21, and the adjusting member 30 can be movably engaged with the guiding portion 22 along the second direction to guide the mounting base 10 to move relative to the adjusting base 20. Thus, when the tension of the belt 230 needs to be adjusted, the mounting base 10 is moved first to match the adjusting part 30 with the guiding part 22, and then under the guiding action of the guiding part 22, the mounting base 10 is moved relative to the adjusting base 20 along the second direction, and after the position of the corresponding matching part 21 is reached, the adjusting part 30 is separated from the guiding part 22 and is matched with the matching part 21, so that the adjustment of the tension of the belt 230 is realized.

Fig. 5 shows an exploded view of a belt transmission device in another embodiment of the present application, fig. 6 shows an enlarged view of the belt transmission device at B in fig. 5, and in other embodiments, when the fitting portion 21 is provided on the mounting seat 10, the guide portion 22 may be correspondingly provided on the mounting seat 10.

Specifically, the guiding portion 22 includes a second groove 221, the second groove 221 may communicate with the first grooves 211 of the engaging portions 21, and the adjusting member 30 includes a protrusion 31, and the protrusion 31 may engage with the second groove 221 and the first grooves 211. The setting adjuster 30 includes the projection 31, which can be smoothly moved between the first recess 211 and the second recess 221, increasing the adjusting speed, and improving the adjusting efficiency. Specifically, the second groove 221 extends in the second direction, and the plurality of first grooves 211 are located at one side of the guide portion 22 in a third direction, wherein the third direction is perpendicular to the second direction.

Referring again to fig. 3, in some embodiments, belt tensioner 100 further comprises first locking member 40 and second locking member 50, first locking member 40 is disposed on adjustment member 30, and second locking member 50 is disposed on mounting base 10 or adjustment base 20, wherein first locking member 40 and second locking member 50 are capable of cooperating when mounting base 10 is in the adjustment position to lock mounting base 10 in the adjustment position. In this way, the position of the installation seat 10 relative to the adjustment base 20 is fixed by the locking cooperation of the first locking member 40 and the second locking member 50, and the tension of the belt 230 is also fixed.

In particular, in the embodiment of the present application, the second locker 50 is provided on the fitting part 21. Thus, when the adjusting member 30 is engaged with an engaging portion 21, the first locking member 40 is locked with the second locking member 50 of the engaging portion 21, so as to complete the locking of the mounting seat 10, on one hand, the structure of the belt tensioner 100 is more compact, and on the other hand, the locking speed is also increased.

Referring to fig. 6 again, in other embodiments, the adjusting member 30 is disposed on one of the mounting base 10 and the adjusting base 20 by the cooperation of the first locking member 40 and the second locking member 50. For example, when the adjusting member 30 is disposed on the adjusting base 20, the first locking member 40 is disposed on the adjusting member 30, the second locking member 50 is disposed on the adjusting base 20, and the first locking member 40 and the second locking member 50 cooperate to allow the adjusting member 30 to be disposed on the adjusting base 20. Further, in order to lock the mounting seat 10 in the adjustment position, the adjustment member 30 has an end of the first locking member 40, and an engaging portion 21 of the mounting seat 10 is formed through a side of the mounting seat 10 away from the adjustment base 20 to engage with the second locking member 50 of the adjustment base 20.

In some embodiments, first locking member 40 includes a first threaded portion and second locking member 50 includes a second threaded portion, the first and second threaded portions being threadably lockable. In the embodiment of the present application, when the fitting portion 21 includes the first groove 211, the adjusting member 30 includes the protrusion 31, the first thread portion is an internal thread provided in the first groove 211, and the second thread portion is an external thread provided on the protrusion 31. Similarly, when the fitting portion 21 includes the protrusion 31, the adjusting member 30 includes a first groove 211, the first thread portion is an external thread disposed on the protrusion 31, and the second thread portion is an internal thread disposed in the first groove 211.

In some embodiments, the adjustment member 30 is detachably provided to the mounting base 10 or the adjustment base 20. Specifically, in an embodiment of the present application, the adjusting element 30 is a screw, and one end of the screw penetrates through the mounting base 10 from a side of the mounting base 10 away from the adjusting base 20 along the first direction to match with the matching portion 21 on the adjusting base 20. In other embodiments, when the adjusting member 30 is disposed on the adjusting base 20, the adjusting member 30 is also detachably disposed on the mounting base 10. Specifically, the adjusting member 30 is a screw, and one end of the screw penetrates through the matching portion 21 of the mounting base 10 from the side of the mounting base 10 away from the adjusting base 20 along the first direction, so as to be in threaded connection with the adjusting base 20.

As shown in fig. 7, in some embodiments, the adjusting base 20 includes a plurality of adjusting parts 30, the plurality of matching portions 21 includes a plurality of groups, the plurality of adjusting bases 20 are spaced apart from each other, each adjusting part 30 is correspondingly disposed on one of the mounting base 10 and a corresponding adjusting base 20, the other of the mounting base 10 and a corresponding adjusting base 20 is provided with a plurality of matching portions 21, and each adjusting part 30 is capable of matching with a matching portion 21 of a corresponding plurality of matching portions 21. The mode that sets up a plurality of regulating parts 30 and a plurality of cooperation portions 21 of multiunit, the location of mount pad 10 relative regulation base 20 that can make is more reliable, when only having single regulating part 30 and a set of cooperation portion 21, under the effect of belt 230 tensioning force, can lead to the one end of mount pad 10 to rise easily and stick up, especially at the plane that mount pad 10 and regulation base 20 contacted, when there is the difference in height along the belt pulley axial with the plane at belt 230 place, it can be higher to rise the degree, therefore, the mode that sets up a plurality of regulating parts 30 and a plurality of cooperation portions 21 of multiunit, can avoid rising and stick up, improve the installation stability of belt pulley.

Specifically, the adjusting bases 20 include at least three, the adjusting pieces 30 include at least three, the plurality of fitting portions 21 include at least three groups, and at least three of all the adjusting bases 20 are arranged in a triangular shape. The triangular arrangement makes the installation of the installation seat 10 more stable. Preferably, the adjustment base 20 includes three, the adjustment member 30 includes three, and the plurality of fitting portions 21 includes three sets.

In the embodiment of the present application, a belt 230 is inserted between two adjacent adjusting bases 20.

Referring to fig. 1 again, based on the same inventive concept, the present application further provides a belt transmission device 200, which includes a housing, and a first pulley 210, a second pulley 220, a belt 230 and the belt tensioning device 100 all disposed in the housing, wherein the first pulley 210 and the second pulley 220 are disposed at an interval along a second direction, the belt is in transmission connection with the first pulley 210 and the second pulley 220, the first pulley 210 is mounted on the mounting base 10, and the adjusting base 20 is fixed in the housing.

Specifically, the housing includes a first housing 240 and a second housing (not shown) that are spliced to each other along a first direction, the first housing 240 and the second housing are spliced to each other along the first direction to form a receiving chamber 250, and the first pulley 210, the second pulley 220, the belt 230, and the above-described belt tensioner 100 are disposed in the receiving chamber 250.

In some embodiments, the bottom wall and at least one side wall of the adjustment base 20 are fixedly connected to the inner wall of the housing. Specifically, the bottom wall of the adjustment base 20 is fixed to the inner bottom wall of the first housing 240, and the side wall of the adjustment base 20 is connected to the inner side wall of the first housing 240. Therefore, the structural strength of the adjusting base 20 can be improved, and the installation reliability of the installation seat 10 relative to the adjusting base 20 can be improved.

Based on the same inventive concept, the present application also provides a robot including the belt transmission device 200 described above.

Specifically, the robot includes a robot arm including the above-described belt transmission 200. In an embodiment of the present application, the belt tensioner 100 is used to adjust the tension of a pulley controlling the motion at a joint of a robot arm.

The belt tensioning device 100, the belt transmission device 200 and the robot provided by the embodiment of the application have the following beneficial effects:

through setting up along a plurality of cooperation portions 21 of second direction interval, at mount pad 10 relative regulation base 20 along the second direction removal in-process, can make regulating part 30 correspond and cooperate with one of them cooperation portion 21 to make mount pad 10 be located regulation base 20, at this moment, can drive belt 230 and reach predetermined tensile force, and then realize tensile force and adjust. The belt tensioning device 100 of the application only needs to drive the installation seat 10 to relatively adjust the base 20 to move along the second direction, so that the matching of the adjusting part 30 and the matching part 21 can be realized, the tension of the belt is adjusted, therefore, the tension meter is not needed to be used for tensioning installation, the installation operation can be completed only by one person, and the adjusting process is simplified.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A belt tensioner (100), comprising:

the mounting seat (10) is used for mounting the belt pulley; and

an adjusting base (20) located on one side of the mounting base (10) along a first direction, and the mounting base (10) is movable along a second direction relative to the adjusting base (20), wherein the first direction and the second direction intersect;

the belt tensioning device (100) further comprises an adjusting piece (30), the adjusting piece (30) is arranged on one of the installation seat (10) and the adjusting base (20), the other of the installation seat (10) and the adjusting base (20) is provided with a plurality of matching portions (21), the matching portions (21) are arranged at intervals in the second direction, and the adjusting piece (30) can be matched with one of the matching portions (21) to form an adjusting position, in which the installation seat (10) is positioned on the adjusting base (20).

2. The belt tensioner (100) of claim 1, wherein one of the engaging portion (21) and the adjusting member (30) comprises a first recess (211) and the other of the engaging portion (21) and the adjusting member (30) comprises a protrusion (31), the protrusion (31) being capable of engaging the first recess (211).

3. The belt tensioner (100) of claim 1, wherein one of the mounting seat (10) and the adjustment base (20) is further provided with a guide portion (22), the guide portion (22) being located at one side of the plurality of fitting portions (21) and being connected to each of the plurality of fitting portions (21);

the adjusting piece (30) can be movably matched with the guide part (22) along the second direction to guide the mounting seat (10) to move relative to the adjusting base (20).

4. The belt tensioner (100) of claim 3, wherein the guide portion (22) comprises a second groove (221), the engagement portion (21) comprises a first groove (211), the second groove (221) communicates with the plurality of first grooves (211), and the adjustment member (30) comprises a protrusion (31), the protrusion (31) being engageable with the second groove (221) and the first groove (211).

5. The belt tensioner (100) of claim 1, further comprising a first retaining member (40) and a second retaining member (50), the first retaining member (40) being disposed on the adjustment member (30), the second retaining member (50) being disposed on the adjustment base (20) or the mounting seat (10), the first retaining member (40) and the second retaining member (50) being engageable when the mounting seat (10) is in the adjustment position to retain the mounting seat (10) in the adjustment position.

6. The belt tensioner (100) of claim 5, wherein the second locking member (50) is provided on the engagement portion (21); or

The adjusting piece (30) is arranged on one of the mounting seat (10) and the adjusting base (20) through the matching of the first locking piece (40) and the second locking piece (50).

7. The belt tensioner (100) of claim 5, wherein the first locking member (40) comprises a first threaded portion and the second locking member (50) comprises a second threaded portion, the first threaded portion being threadably lockable with the second threaded portion.

8. The belt tensioner (100) of claim 1, wherein the adjustment base (20) comprises a plurality, the adjustment member (30) comprises a plurality, and the plurality of engagement portions (21) comprises a plurality of sets;

the adjusting bases (20) are arranged at intervals, each adjusting piece (30) is correspondingly arranged on one of the installation base (10) and the corresponding adjusting base (20), the other one of the installation base (10) and the corresponding adjusting base (20) is provided with a group of the matching parts (21), and each adjusting piece (30) can be matched with one matching part (21) of the corresponding group of the matching parts (21).

9. The belt tensioner (100) of claim 8, wherein the adjustment base (20) comprises at least three, the adjustment member (30) comprises at least three, and the plurality of engagement portions (21) comprises at least three sets;

at least three of all the adjustment bases (20) are arranged in a triangle.

10. A belt drive (200) comprising a housing and a first pulley (210), a second pulley (220), a belt (230) and a belt tensioner (100) as claimed in any one of claims 1 to 9 all disposed within the housing;

first belt pulley (210) with second belt pulley (220) are followed the second direction interval sets up, belt (230) transmission connect in first belt pulley (210) with second belt pulley (220), first belt pulley (210) install in on mount pad (10), adjust base (20) and be fixed in the shell.

11. A robot, characterized by comprising a belt drive (200) according to claim 10.