Balance detection mechanism

Abstract

The utility model discloses a balance detection mechanism, and relates to the technical field of balance detection. The utility model discloses a balance detection mechanism. Comprising a machine base, a detection frame arranged on the machine base, a first elastic piece arranged between the machine base and the detection frame, a mounting plate arranged on the detection frame, a second elastic piece arranged between the detection frame and the mounting plate, a main shaft rotationally arranged on the mounting plate in the vertical direction, and a first driving module used for driving the main shaft to rotate. A first sensing module is arranged on the detection frame, and a second sensing module is arranged on the mounting plate. According to the balance detection mechanism, the detection frame on the balance detection mechanism can be elastically connected with the machine base through the first elastic piece, the mounting plate can be elastically connected with the detection frame through the second elastic piece, and through cooperation of the first elastic piece and the second elastic piece, the blocking force generated by the machine base and the detection frame when the mounting plate shakes can be reduced; therefore, the unbalance amount of the rotary body can be effectively transmitted outwards, and the balance detection precision of the rotary body is improved.

Description

Technical Field

[0001] This application relates to the field of balance detection, and particularly to a balance detection mechanism. Background Art

[0002] A balance detection mechanism is a device used to detect the balance of a rotating body. The balance detection mechanism in the prior art includes a machine base, a detection frame provided on the machine base, a mounting plate provided on the detection frame, and a main shaft and a sensor provided on the mounting plate. During testing, the rotating body is mounted on the main shaft, and then the main shaft drives the rotating body to rotate. During the rotation of the rotating body, due to its own unbalance, the main shaft will wobble during rotation, thereby driving the mounting plate and the detection frame to wobble. The sensor can detect the wobbling parameters of the mounting plate and the detection frame to detect the unbalance of the rotating body.

[0003] However, when the mounting plate wobbles, the detection frame will generate a blocking force on the wobbling of the mounting plate, resulting in the sensor being unable to accurately detect the wobbling parameters of the mounting plate, which greatly affects the balance detection accuracy of the rotating body. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, this application provides a balance detection mechanism with high detection accuracy.

[0005] A balance detection mechanism provided by this application adopts the following technical solution:

[0006] A balance detection mechanism includes a machine base, a detection frame provided on the machine base, a first elastic member provided between the machine base and the detection frame, a mounting plate provided on the detection frame, a second elastic member provided between the detection frame and the mounting plate, a main shaft rotatably provided on the mounting plate around the vertical direction, a first driving module for driving the main shaft to rotate, a first sensing module provided on the detection frame, and a second sensing module provided on the mounting plate.

[0007] By adopting the above technical solution, the detection frame can be elastically connected to the machine base through the first elastic member, and the mounting plate can be elastically connected to the detection frame through the second elastic member. Through the cooperation of the first elastic member and the second elastic member, the blocking force generated by the machine base and the detection frame when the mounting plate wobbles can be reduced, so that the unbalance of the rotating body can be effectively transmitted outward, improving the balance detection accuracy of the rotating body.

[0008] In a specific feasible implementation, the detection rack includes two relatively arranged first frame bodies. Two opposite side portions of the machine base respectively have connecting portions. The two first frame bodies are respectively suspended above the two connecting portions. The first elastic member includes two relatively arranged spring plates, and the spring plates are respectively installed between each corresponding first frame body and the connecting portion.

[0009] In a specific feasible implementation, the second elastic member includes two mutually parallel spring rods. The two spring rods are respectively arranged on the two first frame bodies. The mounting plate has two relatively arranged first connection ends. The two first connection ends are symmetrically arranged with respect to the main shaft and are respectively connected to the two spring rods.

[0010] By adopting the above technical solution, the mounting plate can be connected to the two spring rods only through two symmetric first connection ends, so that the contact area between the mounting plate and the first frame body can be reduced, and further the blocking force generated by the first frame body when the mounting plate shakes can be reduced.

[0011] In a specific feasible implementation, first mounting blocks are respectively arranged at both ends of the first frame body. The spring rod is suspended above the first frame body and its two ends are respectively connected to the two first mounting blocks.

[0012] By adopting the above technical solution, interference of the first frame body on the deformation of the spring rod can be avoided, so that the mounting plate can effectively shake and swing under the cooperation of the two spring rods, and further the balance detection accuracy of the rotating body is improved.

[0013] In a specific feasible implementation, the detection rack further includes two relatively arranged second frame bodies. The arrangement direction of the two second frame bodies is perpendicular to the arrangement direction of the two first frame bodies. The mounting plate further has two relatively arranged second connection ends. The two second connection ends are symmetrically arranged with respect to the main shaft and are respectively connected to the two second frame bodies.

[0014] By adopting the above technical solution, the mounting plate can be connected to the second frame body only through two second connection ends, reducing the contact area between the mounting plate and the second frame body, so that the blocking force generated by the second frame body when the mounting plate shakes can be reduced.

[0015] In a specific feasible implementation, a connecting member is respectively arranged between each second connection end and the corresponding second frame body. The connecting member includes a connecting block with two ends respectively connected to the second connection end and the second frame body, and two first grooves formed on opposite side portions of the connecting block. The two first grooves are symmetrically arranged with respect to the second connection end.

[0016] By adopting the above technical solution, the two first grooves can reduce the blocking force of the connecting block and the second frame body on the mounting plate, enabling the shaking of the mounting plate to be effectively transmitted outward, and effectively improving the balance detection accuracy of the rotating body.

[0017] In a specific feasible embodiment, a second groove is further formed on the second frame body. The second frame body is provided with a second mounting block on the side of the second groove away from the mounting plate. The connecting block passes through the second groove and its two ends are respectively connected to the second connecting end and the second mounting block.

[0018] By adopting the above technical solution, the connecting block can shake in the second groove, avoiding interference of the second frame body with the shaking of the connecting block.

[0019] In a specific feasible embodiment, the balance detection mechanism further includes a chute coaxially arranged in the main shaft and open at both ends, a sliding rod slidably arranged in the chute along the extension direction of the chute, a second driving module for driving the sliding rod to slide, and a clamping member arranged at the upper end of the sliding rod. The clamping member includes a plurality of clamping petals arranged at intervals around the circumference of the sliding rod, and a clearance groove is respectively provided between every two adjacent clamping petals.

[0020] By adopting the above technical solution, the clamping member can be relatively opened or closed during the sliding process of the sliding rod to fix the rotating body.

[0021] In a specific feasible embodiment, a driving cavity is further formed in the lower part of the main shaft. The driving cavity is communicated with the chute. A pull rod is arranged in the driving cavity. The pull rod is connected to the sliding rod. A spring is sleeved on the pull rod, and the two ends of the spring are respectively connected to the cavity wall of the driving cavity and the pull rod.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] The detection frame can be elastically connected to the machine base through the first elastic member, and the mounting plate can be elastically connected to the detection frame through the second elastic member. Through the cooperation of the first elastic member and the second elastic member, the blocking force generated by the machine base and the detection frame when the mounting plate shakes can be reduced, enabling the unbalance amount of the rotating body to be effectively transmitted outward, and improving the balance detection accuracy of the rotating body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the balance detection mechanism of the embodiment of the present application.

[0025] Figure 2 is Figure 1 the longitudinal sectional schematic diagram of

[0026] Description of the reference numerals in the drawings:

[0027] 1. Machine base; 2. Detection frame; 21. First frame body; 22. Second frame body; 23. Second groove; 3. First elastic member; 31. Spring plate; 4. Mounting plate; 41. First connection end; 42. Second connection end; 5. Second elastic member; 51. Spring rod; 6. Main shaft; 61. Chute; 62. Driving cavity; 7. First driving module; 8. First sensing module; 9. Second sensing module; 10. First mounting block; 11. Connecting member; 111. Connecting block; 112. First groove; 12. Second mounting block; 13. Slide bar; 14. Second driving module; 15. Clamping member; 151. Clamping flap; 152. Relief groove; 16. Pull rod; 17. Spring. Detailed implementation mode

[0028] The following further elaborates on this application with reference to the drawings.

[0029] See Figure 1-2 As shown, a balance detection mechanism is shown, which includes a machine base 1, a detection frame 2 provided on the machine base 1, a first elastic member 3 provided between the machine base 1 and the detection frame 2, a mounting plate 4 horizontally provided on the detection frame 2, a second elastic member 5 provided between the detection frame 2 and the mounting plate 4, a main shaft 6 rotatably provided on the mounting plate 4 around the vertical direction, and a first driving module 7 for driving the main shaft 6 to rotate. A first sensing module 8 is provided on the detection frame 2, and a second sensing module 9 is provided on the mounting plate 4. Among them, the first driving module 7 is a motor, which is in transmission connection with the main shaft 6 through a belt; both the first sensing module 8 and the second sensing module 9 are position sensors. The sensing head of the first sensing module 8 faces the horizontal direction, and it can detect the horizontal shaking of the detection frame 2 and the mounting plate 4. The sensing head of the second sensing module 9 faces the vertical direction, and it can detect the longitudinal swing of the mounting plate 4.

[0030] In this way, the detection frame 2 is elastically connected to the machine base 1 through the first elastic member 3, and the mounting plate 4 is elastically connected to the detection frame 2 through the second elastic member 5. Through the cooperation of the first elastic member 3 and the second elastic member 5, the blocking force generated when the machine base 1 and the detection frame 2 shake during the shaking of the mounting plate 4 can be reduced, so that the unbalance amount of the rotating body can be effectively transmitted outward, improving the balance detection accuracy of the rotating body.

[0031] In this embodiment, in combination with Figure 1 As shown, the detection frame 2 is a rectangular frame structure, which includes two relatively arranged first frame bodies 21 and two relatively arranged second frame bodies 22. The arrangement direction of the two second frame bodies 22 is perpendicular to the arrangement direction of the two first frame bodies 21. The two opposite sides of the machine base 1 respectively have connecting parts, and the two first frame bodies 21 are respectively suspended above the two connecting parts.

[0032] The mounting plate 4 has a cross-shaped structure, which includes two oppositely arranged first connection ends 41 and two oppositely arranged second connection ends 42. The two first connection ends 41 are symmetrically arranged with respect to the main shaft 6, and the two second connection ends 42 are also symmetrically arranged with respect to the main shaft 6. There is an arc-shaped connection groove between the adjacent first connection end 41 and the second connection end 42.

[0033] The first elastic member 3 includes two oppositely arranged spring plates 31, and the spring plates 31 are respectively installed between each corresponding first frame body 21 and the connecting portion.

[0034] The second elastic member 5 includes two parallel spring rods 51. The two spring rods 51 are respectively arranged on the two first frame bodies 21. First mounting blocks 10 are respectively arranged at both ends of the first frame body 21. The spring rods 51 are suspended above the first frame body 21 and their two ends are respectively connected to the two first mounting blocks 10.

[0035] In this embodiment, the two first connection ends 41 are respectively connected to the middle parts of the two spring rods 51, and the two second connection ends 42 are respectively connected to the middle parts of the two second frame bodies 22. The mounting plate 4 can be connected to the two spring rods 51 through the two symmetric first connection ends 41 and connected to the second frame body 22 through the two symmetric second connection ends 42, so as to reduce the contact area between the mounting plate 4 and the detection frame 2, and further reduce the blocking force generated by the detection frame 2 when the mounting plate 4 shakes.

[0036] In this embodiment, a connecting member 11 is respectively arranged between each second connection end 42 and the corresponding second frame body 22. The connecting member 11 includes a connecting block 111 whose two ends are respectively connected to the second connection end 42 and the second frame body 22, and two first grooves 112 are opened on the opposite side parts of the connecting block 111. The two first grooves 112 are symmetrically arranged with respect to the second connection end 42. The two first grooves 112 can reduce the blocking force of the connecting block 111 and the second frame body 22 on the mounting plate 4, so that the shaking of the mounting plate 4 can be effectively transmitted outward, effectively improving the balance detection accuracy of the rotating body.

[0037] A second groove 23 is also opened on the second frame body 22. The second frame body 22 is provided with a second mounting block 12 on the side of the second groove 23 away from the mounting plate 4. The connecting block 111 passes through the second groove 23 and its two ends are respectively connected to the second connection end 42 and the second mounting block 12. The connecting block 111 can shake in the second groove 23 to avoid interference of the second frame body 22 with the shaking of the connecting block 111.

[0038] In this embodiment, in combination with Figure 2As shown, the balance detection mechanism also includes a slide groove 61 coaxially arranged in the main shaft 6 and open at both ends, a slide rod 13 slidable in the slide groove 61 along the extension direction of the slide groove 61, a second driving module 14 for driving the slide rod 13 to slide, and a clamping member 15 arranged at the upper end of the slide rod 13, the clamping member 15 includes a plurality of clamping petals 151 circumferentially spaced around the slide rod 13, and a yield groove 152 is provided between each two adjacent clamping petals 151.

[0039] Among them, the second driving module 14 is a cylinder arranged on the machine base 1, and the piston rod of the cylinder can be extended and retracted in the vertical direction. In the process of extending upward, it can extend into the slide groove 61 and push the slide rod 13 to slide upward. In the process of the slide rod 13 sliding upward, the clamping member 15 extends out of the main shaft 6 from the upper end opening of the slide groove 61, and the multiple clamping petals 151 open relatively after losing the pressure of the groove wall of the slide groove 61. At this time, the rotating body can be inserted into the multiple clamping petals 151.

[0040] In this embodiment, a driving chamber 62 is further provided at the lower part of the main shaft 6, and the driving chamber 62 is connected to the slide groove 61. A pull rod 16 is provided in the driving chamber 62, and the pull rod 16 is connected to the slide rod 13. A spring 17 is sleeved on the pull rod 16, and the upper end of the spring 17 is connected to the cavity wall of the driving chamber 62, and the lower end is connected to the pull rod 16. The piston rod of the cylinder can extend into the driving chamber 62 and push the pull rod 16 to slide upwards during the upward extension process, thereby driving the slide rod 13 to slide, and then opening the clamping member 15. The spring 17 is relatively squeezed during the upward sliding process of the pull rod 16; and when the cylinder retracts downward, the pull rod 16 is reset under the elastic force of the spring 17, driving the slide rod 13 and the clamping member 15 to slide downward, and a plurality of clamping petals 151 enter the slide groove 61 and are relatively closed under the squeezing action of the groove wall of the slide groove 61, thereby clamping the rotating body.

[0041] The implementation principle of a balance detection mechanism in the embodiment of the present application is:

[0042] Start the second driving module 14, and drive the opening and closing of the clamping member 15 through the sliding of the slide rod 13 to clamp the rotating body to be detected. Then start the first driving module 7, the main shaft 6 rotates and drives the rotating body to rotate. The mounting plate 4 and the detection frame 2 swing and shake during the rotation of the rotating body. The first sensor module 8 and the second sensor module 9 detect the shaking of the mounting plate 4 and the detection frame 2 and output the detection signal to the outside.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A balance detection mechanism, characterized in that: It includes a machine base (1), a detection frame (2) provided on the machine base (1), a first elastic member (3) provided between the machine base (1) and the detection frame (2), a mounting plate (4) provided on the detection frame (2), a second elastic member (5) provided between the detection frame (2) and the mounting plate (4), a main shaft (6) rotatably provided on the mounting plate (4) around the vertical direction, and a first driving module (7) for driving the main shaft (6) to rotate. A first sensing module (8) is provided on the detection frame (2), and a second sensing module (9) is provided on the mounting plate (4).

2. The balance detection mechanism according to claim 1, characterized in that: The detection frame (2) includes two relatively arranged first frame bodies (21). The two opposite side portions of the machine base (1) respectively have connection portions. The two first frame bodies (21) are respectively suspended above the two connection portions. The first elastic member (3) includes two relatively arranged spring plates (31), and the spring plates (31) are respectively installed between each corresponding first frame body (21) and the connection portion.

3. The balance detection mechanism according to claim 2, characterized in that: The second elastic member (5) includes two mutually parallel spring rods (51). The two spring rods (51) are respectively provided on the two first frame bodies (21). The mounting plate (4) has two relatively arranged first connection ends (41). The two first connection ends (41) are symmetrically arranged with respect to the main shaft (6) and are respectively connected to the two spring rods (51).

4. The balance detection mechanism according to claim 3, characterized in that: First mounting blocks (10) are respectively provided at both ends of the first frame body (21). The spring rod (51) is suspended above the first frame body (21) and its two ends are respectively connected to the two first mounting blocks (10).

5. The balance detection mechanism according to claim 2, wherein: The detection frame (2) further includes two relatively arranged second frame bodies (22). The arrangement direction of the two second frame bodies (22) is perpendicular to the arrangement direction of the two first frame bodies (21). The mounting plate (4) further has two relatively arranged second connection ends (42). The two second connection ends (42) are symmetrically arranged with respect to the main shaft (6) and are respectively connected to the two second frame bodies (22).

6. The balance detection mechanism according to claim 5, characterized in that: A connecting member (11) is respectively provided between each second connection end (42) and the corresponding second frame body (22). The connecting member (11) includes a connecting block (111) with two ends respectively connected to the second connection end (42) and the second frame body (22), and two first grooves (112) opened on the opposite side portions of the connecting block (111). The two first grooves (112) are symmetrically arranged with respect to the second connection end (42).

7. The balance detection mechanism according to claim 6, wherein: A second groove (23) is further opened on the second frame body (22). A second mounting block (12) is provided on the second frame body (22) on the side of the second groove (23) away from the mounting plate (4). The connecting block (111) passes through the second groove (23) and its two ends are respectively connected to the second connection end (42) and the second mounting block (12).

8. A balance detection mechanism according to claim 1, characterized in that: The balance detection mechanism further includes a chute (61) coaxially arranged in the main shaft (6) and open at both ends, a sliding rod (13) slidably arranged in the chute (61) along the extension direction of the chute (61), a second driving module (14) for driving the sliding rod (13) to slide, and a clamping member (15) arranged at the upper end of the sliding rod (13). The clamping member (15) includes a plurality of clamping flaps (151) arranged at intervals around the circumference of the sliding rod (13), and a clearance groove (152) is respectively provided between every two adjacent clamping flaps (151).

9. The balance detection mechanism according to claim 8, characterized in that: A driving cavity (62) is further opened in the lower part of the main shaft (6). The driving cavity (62) is communicated with the chute (61). A pull rod (16) is arranged in the driving cavity (62). The pull rod (16) is connected with the sliding rod (13). A spring (17) is sleeved on the pull rod (16). Two ends of the spring (17) are respectively connected with the cavity wall of the driving cavity (62) and the pull rod (16).

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