Transmission belt adjusting and tensioning mechanism and hybrid robot

Abstract

The utility model relates to the technical field of mechanical transmission, and discloses a transmission belt adjusting and tensioning mechanism and a hybrid robot, the transmission belt adjusting and tensioning mechanism comprises a body, the body is provided with a transmission assembly and an adjusting assembly, the transmission assembly comprises a first transmission wheel, a second transmission wheel and a transmission belt, and the first transmission wheel and the second transmission wheel are in transmission connection through the transmission belt; the adjusting assembly comprises an adjusting bolt and a sliding plate in sliding connection with the body, a sliding block is arranged on the sliding plate, one end of the adjusting bolt is connected with the sliding block in an abutting mode, a motor is arranged on the sliding plate, the motor is connected with a first transmission wheel, and when the adjusting bolt is adjusted to push the sliding block, the sliding plate drives the motor to move; and the motor drives the first transmission wheel to be far away from the second transmission wheel, so that the transmission belt is tensioned. When a user adjusts the tightness of the adjusting bolt, the sliding block can be far away from the second transmission wheel, so that the distance between the first transmission wheel and the second transmission wheel is indirectly pushed, the transmission belt is tensioned, the structure is simple, and adjustment is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, in particular to a transmission belt adjusting and tensioning mechanism and a hybrid robot. Background Art

[0002] The hybrid robot combines the characteristics of serial robots and parallel robots. It has the advantages of high precision, large working space, strong load-bearing capacity and fast response speed. It provides an effective solution for the high-precision processing and manufacturing of large and complex structural parts. It has been successfully applied in the fields of high-precision drilling and milling processing in aerospace and rail transportation, friction stir welding of thick space plates and high-precision assembly.

[0003] Hybrid robots are generally equipped with a transmission belt mechanism, which needs to be kept in a tensioned state. The transmission belt transmits power through friction. If the belt is too loose, it is easy to slip and insufficient transmission power. Therefore, the transmission belt tension should be adjusted to obtain appropriate friction. Existing belt tensioning mechanisms are usually complex in design, have many parts, are expensive, take up space, and are not convenient to install and adjust the belt tension. Utility Model Content

[0004] In order to solve at least one aspect of the above problems, the utility model first provides a transmission belt adjustment and tensioning mechanism, including a main body, on which a transmission assembly and an adjustment assembly are provided, the transmission assembly including a first transmission wheel, a second transmission wheel and a transmission belt, the first transmission wheel and the second transmission wheel are connected through a transmission belt transmission, the adjustment assembly includes an adjusting bolt and a sliding plate slidably connected to the main body, a sliding block is provided on the sliding plate, one end of the adjusting bolt is abutted and connected to the sliding block, a motor is provided on the sliding plate, and the motor is connected to the first transmission wheel, when the adjusting bolt is adjusted to push the sliding block, the sliding plate drives the motor to move, and the motor drives the first transmission wheel away from the second transmission wheel, thereby tensioning the transmission belt.

[0005] Optionally, the adjustment assembly further comprises a first mounting plate, a waist-shaped groove is provided on the first mounting plate, and the sliding plate is slidably connected to the waist-shaped groove by bolts.

[0006] Optionally, an opening adapted to the sliding block is provided on the first mounting plate, and the sliding block is slidably connected to the opening.

[0007] Optionally, the adjustment assembly further includes a second mounting plate, the second mounting plate is fixed on the first mounting plate, and the adjustment bolt is bolted to the second mounting plate.

[0008] Optionally, a slide groove matched with the first transmission wheel is provided on the first mounting plate, and the first transmission wheel slides in the slide groove.

[0009] Optionally, there are two adjusting bolts, and both of them abut against the side wall of the sliding block.

[0010] Optionally, the transmission belt is a transmission toothed belt, the first transmission wheel and the second transmission wheel are transmission gears, and the transmission belt is meshedly connected with the first transmission wheel and the second transmission wheel respectively.

[0011] Optionally, the adjusting bolt and the sliding block are both arranged between the first transmission wheel and the second transmission wheel.

[0012] Optionally, first annular edges are protruding from both inner and outer sides of the first transmission wheel, second annular edges are protruding from both inner and outer sides of the second transmission wheel, and the transmission belt portion is accommodated in the first annular edge and the second annular edge.

[0013] Compared with the prior art, the transmission belt adjustment and tensioning mechanism in the utility model, by setting an adjusting bolt to abut against the slider, allows the user to move the slider away from the second transmission wheel when adjusting the tightness of the adjusting bolt, thereby indirectly pushing the distance between the first transmission wheel and the second transmission wheel to tighten the transmission belt. The structure is simple and the adjustment is convenient.

[0014] In addition, the utility model provides a hybrid robot, including the above transmission belt adjusting and tensioning mechanism.

[0015] Compared with the prior art, the hybrid robot of the present invention and the above-mentioned transmission belt adjusting and tensioning mechanism have the same advantages over the prior art, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural diagram of a hybrid robot according to an embodiment of the utility model;

[0017] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0018] Figure 3 It is a partial structural diagram of the transmission belt adjusting and tensioning mechanism of an embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 1. Main body; 2. Transmission assembly; 21. Transmission belt; 22. First transmission wheel; 221. First annular edge; 23. Second transmission wheel; 231. Second annular edge; 3. Sliding plate; 31. Sliding block; 4. First mounting plate; 41. Waist-shaped groove; 42. Opening; 43. Sliding groove; 5. Second mounting plate; 51. Adjusting bolt. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is in normal use.

[0023] The terms "first" and "second" are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. The drawings of the embodiments of the present utility model are provided with a coordinate system XYZ, wherein the positive direction of the X-axis represents the left, the reverse direction of the X-axis represents the right, the positive direction of the Y-axis represents the front, the reverse direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the reverse direction of the Z-axis represents the bottom.

[0024] The utility model provides a transmission belt tensioning mechanism, combined with Figure 1-3 As shown, it includes a main body 1, on which a transmission component 2 and an adjustment component are provided, the transmission component 2 includes a first transmission wheel 22, a second transmission wheel 23 and a transmission belt 21, the first transmission wheel 22 and the second transmission wheel 23 are connected by the transmission belt 21, the adjustment component includes an adjusting bolt 51 and a sliding plate 3 slidably connected to the main body 1, the sliding plate 3 is provided with a slider 31, one end of the adjusting bolt 51 is abutted and connected with the slider 31, the sliding plate 3 is provided with a motor (not shown), the motor is connected to the first transmission wheel 22, when the adjusting bolt 51 is adjusted to push the slider 31, the sliding plate 3 drives the motor to move, and the motor drives the first transmission wheel 22 away from the second transmission wheel 23, thereby tensioning the transmission belt 21.

[0025] The transmission belt adjustment and tensioning mechanism in the utility model is provided with an adjustment bolt 51 abutting against the slider 31, so that when the user adjusts the tightness of the adjustment bolt 51, the slider 31 can be moved away from the second transmission wheel 23, thereby indirectly pushing the distance between the first transmission wheel 22 and the second transmission wheel 23, so that the transmission belt 21 is tightened. The structure is simple and the adjustment is convenient.

[0026] The adjustment assembly further comprises a first mounting plate 4 , on which a waist-shaped groove 41 is provided, and the sliding plate 3 is slidably connected to the waist-shaped groove 41 via bolts.

[0027] like Figure 2As shown, four waist-shaped grooves 41 are provided on the first mounting plate 4, and the positions of the waist-shaped grooves 41 are adapted to the positions of the four corners of the sliding plate 3. This arrangement can fix the sliding plate 3 without affecting the movement of the sliding plate 3, the structure is simple and ingenious, and the connection is more stable.

[0028] The first mounting plate 4 is provided with an opening 42 adapted to the sliding block 31 , and the sliding block 31 is slidably connected to the opening 42 .

[0029] like Figure 3 As shown, in the present embodiment, the slider 31 is integrally formed with the first mounting plate 4, and the slider 31 extends from the opening 42 to match the position of the adjusting bolt 51 on the outer surface, thereby facilitating the user to adjust and observe the position of the slider 31. At the same time, the opening 42 also limits the slider 31 to prevent the slider 31 from being too far away from the second transmission wheel 23, causing the transmission belt 21 to be over-tensioned and broken.

[0030] The adjustment assembly further includes a second mounting plate 5 , which is fixed on the first mounting plate 4 , and the adjustment bolt 51 is threadedly connected to the second mounting plate 5 .

[0031] like Figure 3 As shown, in this embodiment, the second mounting plate 5 is fixed to the outer side of the first mounting plate 4 by bolts, and the adjusting bolts 51 are arranged on the side wall of the second mounting plate 5, so as to stabilize the structure and reduce the occupied space without affecting the user's adjustment.

[0032] The first mounting plate 4 is provided with a slide groove 43 matched with the first transmission wheel 22 , and the first transmission wheel 22 slides in the slide groove 43 .

[0033] like Figure 2 As shown, the length of the slide groove 43 matches the length of the waist-shaped groove 41 .

[0034] There are two adjusting bolts 51 , and both of them abut against the side wall of the sliding block 31 .

[0035] like Figure 2 and 3 As shown, two adjusting bolts 51 are provided to push the slider 31, so that the slider 31 can be subjected to a more uniform force and the structure can be more stable.

[0036] The transmission belt 21 is a transmission toothed belt, the first transmission wheel 22 and the second transmission wheel 23 are transmission gears, and the transmission belt 21 is meshedly connected with the first transmission wheel 22 and the second transmission wheel 23 respectively.

[0037] like Figure 2 and 3As shown, the meshing connection can make the connection structure between the first transmission wheel 22, the second transmission wheel 23 and the transmission belt 21 more stable and achieve better transmission effect.

[0038] like Figure 2 and 3 As shown, the adjusting bolt 51 and the sliding block 31 are both arranged between the first transmission wheel 22 and the second transmission wheel 23. This arrangement can reasonably utilize the space between the first transmission wheel 22 and the second transmission wheel 23 without occupying additional space.

[0039] The first transmission wheel 22 has first annular edges 221 protruding from both inner and outer sides, the second transmission wheel 23 has second annular edges 231 protruding from both inner and outer sides, and the transmission belt 21 is partially accommodated in the first annular edge 221 and the second annular edge 231 .

[0040] like Figure 2 and 3 As shown, such an arrangement can make the structure more stable and prevent the transmission belt 21 from falling out during the transmission process.

[0041] Another embodiment of the utility model provides a hybrid robot, comprising the transmission belt adjusting and tensioning mechanism as described above.

[0042] Although the disclosure is as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A transmission belt tensioning mechanism, characterized in that: The invention comprises a body (1), wherein a transmission assembly (2) and an adjustment assembly are provided on the body (1), wherein the transmission assembly (2) comprises a first transmission wheel (22), a second transmission wheel (23) and a transmission belt (21), wherein the first transmission wheel (22) and the second transmission wheel (23) are connected in transmission via the transmission belt (21), wherein the adjustment assembly comprises an adjustment bolt (51) and a sliding plate (3) slidably connected to the body (1), wherein a slider (31) is provided on the sliding plate (3), wherein one end of the adjustment bolt (51) is abutted against the slider (31), wherein a motor is provided on the sliding plate (3), wherein the motor is connected to the first transmission wheel (22), and when the adjustment bolt (51) is adjusted to push the slider (31), the sliding plate (3) drives the motor to move, and the motor drives the first transmission wheel (22) away from the second transmission wheel (23), thereby tensioning the transmission belt (21).

2. The transmission belt adjusting and tensioning mechanism according to claim 1, characterized in that: The adjustment assembly further comprises a first mounting plate (4), the first mounting plate (4) being provided with a waist-shaped groove (41), and the sliding plate (3) being slidably connected to the waist-shaped groove (41) via bolts.

3. The transmission belt adjusting and tensioning mechanism according to claim 2, characterized in that: The first mounting plate (4) is provided with an opening (42) adapted to the sliding block (31), and the sliding block (31) is slidably connected to the opening (42).

4. The transmission belt adjusting and tensioning mechanism according to claim 2, characterized in that: The adjustment assembly further comprises a second mounting plate (5), wherein the second mounting plate (5) is fixed on the first mounting plate (4), and the adjustment bolt (51) is threadedly connected to the second mounting plate (5).

5. The transmission belt adjusting and tensioning mechanism according to claim 2, characterized in that: The first mounting plate (4) is provided with a sliding groove (43) adapted to the first transmission wheel (22), and the first transmission wheel (22) slides in the sliding groove (43).

6. The transmission belt adjusting and tensioning mechanism according to claim 1, characterized in that: There are two adjusting bolts (51), both of which abut against the side wall of the sliding block (31).

7. The transmission belt adjusting and tensioning mechanism according to claim 1, characterized in that: The transmission belt (21) is a transmission toothed belt, the first transmission wheel (22) and the second transmission wheel (23) are both transmission gears, and the transmission belt (21) is meshedly connected with the first transmission wheel (22) and the second transmission wheel (23) respectively.

8. The transmission belt adjusting and tensioning mechanism according to claim 1, characterized in that: The adjusting bolt (51) and the sliding block (31) are both arranged between the first transmission wheel (22) and the second transmission wheel (23).

9. The transmission belt adjusting and tensioning mechanism according to claim 1, characterized in that: The first transmission wheel (22) is provided with a first annular edge (221) on both inner and outer sides, the second transmission wheel (23) is provided with a second annular edge (231) on both inner and outer sides, and the transmission belt (21) is partially accommodated in the first annular edge (221) and the second annular edge (231).

10. A hybrid robot, characterized in that: It comprises a transmission belt adjusting and tensioning mechanism as described in any one of claims 1 to 9.

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