Dynamic balance testing machine

Abstract

The utility model provides a dynamic balance testing machine, which comprises a machine base, a mounting seat, a vibration assembly, a core clamping device and a driving mechanism, and is characterized in that the mounting seat is arranged on the machine base, the vibration assembly is arranged on the mounting seat and movably connected with the mounting seat, and the vibration assembly comprises a longitudinal vibration sensor and a transverse vibration sensor; the core clamping device is arranged on the vibration assembly, extends out of the top of the machine base and comprises a rotating shaft and a plurality of collet clamping cores, and the rotating shaft is rotationally arranged relative to the machine base. The external rotating bodies are clamped by the plurality of collet chucks, and then the plurality of collet chucks are driven to rotate by the driving mechanism through adjustment, so that the external rotating bodies can be subjected to rotation test treatment without arranging a unique driving tool; the longitudinal vibration sensor and the transverse vibration sensor can obtain transverse and longitudinal vibration data generated when the external rotating body rotates, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating body vibration testing, in particular to a dynamic balancing testing machine. Background Art

[0002] In the prior art, rotating bodies include fans, motors, and electric motors. When these rotating bodies rotate during operation, due to uneven material distribution of rotating body parts, uneven mold distribution or defects, and errors in product assembly and processing, these error factors are difficult to control, resulting in deviation centrifugal force in the product during operation. This deviation centrifugal force generates vibration when it rotates, and its vibration will cause the product to generate noise and wear the internal structural parts of the product, thereby seriously affecting the performance and life of the product. Therefore, in the manufacturing process of such products, a dynamic balancing machine is required to perform dynamic balancing detection or correction on the rotating body parts.

[0003] However, when the existing dynamic balancing machine tests the rotating body, it usually uses the motor of the product itself as the drive. Due to the wide variety of product types, it is necessary to make various driving tools, which wastes manpower and material resources. The invention with publication number CN105571782B proposes an optical dynamic balancing machine, which solves the problems of low detection efficiency, easy damage and high cost of the existing dynamic balancing machine. A DC motor is arranged on the side wall of the frame, a photoelectric rotary encoder is arranged below the DC motor, a driving wheel and a driven wheel located on the rotating shaft are arranged above the DC motor, and the upper end of the rotating shaft is connected to a hollow flange located above the frame. However, the above-mentioned dynamic balancing machine is still not convenient for self-driving the rotating body and performing vibration testing, so this scheme specially proposes a dynamic balancing test machine to solve the above problems. Utility Model Content

[0004] In view of this, the utility model proposes a dynamic balancing tester, which clamps an external rotating body through multiple tube cores and then adjusts the multiple tube cores to rotate through a driving mechanism, so that the application can perform rotation test processing on each external rotating body without setting up a unique driving tooling. At this time, the rotating shaft drives the external rotating body to rotate through the tube core, and vibration is generated during rotation. At this time, the vibration is transmitted to the vibration component through the core device, and the vibration component vibrates. The longitudinal vibration sensor and the transverse vibration sensor respectively detect the vibration of the vibration component in the longitudinal and transverse directions. During the test, the longitudinal vibration sensor and the transverse vibration sensor can obtain the transverse and longitudinal vibration data generated by the external rotating body during rotation, which is convenient for use.

[0005] The technical solution of the utility model is implemented as follows: The utility model provides a dynamic balancing test machine, including a machine base, a mounting base, a vibration component, a sandwich device and a driving mechanism, wherein:

[0006] A mounting seat is arranged on the machine base, and the vibration assembly is arranged on the mounting seat and movably connected with the mounting seat, and the vibration assembly includes a longitudinal vibration sensor and a lateral vibration sensor;

[0007] A core sandwich device is arranged on the vibration assembly and extends from the top of the machine base, comprising a rotating shaft and a plurality of tube cores, wherein the rotating shaft is arranged to rotate relative to the machine base, and the plurality of tube cores are arranged at the ends of the rotating shaft for clamping an external rotating body, wherein the longitudinal vibration sensor is used to monitor the longitudinal vibration of the core sandwich device, and the transverse vibration sensor is used to monitor the transverse vibration of the core sandwich device;

[0008] The driving mechanism is used to drive the rotating shaft to rotate.

[0009] On the basis of the above technical solution, preferably, the vibration assembly further includes an assembly seat, a transverse spring rod, a longitudinal spring rod and a mounting frame, wherein:

[0010] The assembly seat is located at the top of the mounting seat, and the assembly seat is connected to the mounting seat through the transverse spring rod and the longitudinal spring rod, and the transverse spring rod and the longitudinal spring rod are perpendicular to each other;

[0011] The mounting frame is arranged on the assembly seat, and the longitudinal vibration sensor and the lateral vibration sensor are both arranged on the mounting frame.

[0012] On the basis of the above technical solution, preferably, the mounting seat includes a connecting seat and a supporting seat, wherein:

[0013] The connecting seat and the supporting seat are respectively located on both sides of the assembly seat, and the height of the connecting seat is higher than that of the supporting seat. The supporting seat is used to support the assembly seat, and the transverse spring rod is connected to the connecting seat.

[0014] On the basis of the above technical solution, preferably, the sandwich device further comprises a device body and a first pulley, wherein:

[0015] The device body is arranged on the assembly seat, and the rotating shaft is rotatably arranged inside the device body and is slidably connected with the device body. The device body includes a limiting cylinder, the cylinder core is an elastic sheet, and the limiting cylinder is located on the peripheral side of the cylinder core and is used to squeeze a plurality of the cylinder cores;

[0016] The first belt pulley is rotatably connected to the device body and is slidably connected to the rotating shaft. The driving mechanism is used to drive the first belt pulley to rotate.

[0017] On the basis of the above technical solution, preferably, it further includes a cylinder and a push block, and the sandwich device also includes a spring, wherein,

[0018] A spring, sleeved on the circumference of the rotating shaft and fixedly connected to the rotating shaft and the first pulley;

[0019] A cylinder is arranged on the mounting seat, and a telescopic end of the cylinder is telescopic toward the rotating shaft;

[0020] A push block is arranged on the telescopic end of the cylinder and is used for resisting the rotating shaft.

[0021] On the basis of the above technical solution, preferably, an arc-shaped protrusion is provided at the end of the rotating shaft, and the arc-shaped protrusion is used to interfere with the pushing block.

[0022] On the basis of the above technical solution, preferably, the driving mechanism includes a motor, a second pulley and a transmission belt, wherein:

[0023] The motor is fixedly connected to the machine base, the second pulley is arranged at the output end of the motor, and the transmission belt is drivingly connected to the first pulley and the transmission belt.

[0024] On the basis of the above technical solution, preferably, the machine base includes an assembly platform, the sandwich device passes through the assembly platform and extends to the top of the machine base, and a plurality of angle scale lines are arranged on the assembly platform, and the plurality of angle scale lines are equidistantly distributed in the circumferential direction.

[0025] On the basis of the above technical solution, preferably, it also includes a top shell and an infrared laser, wherein:

[0026] A top shell is arranged on the top of the base, and the sandwich device is located on the inner side of the top shell, and one side of the top shell is open;

[0027] An infrared laser is arranged inside the top shell of the set and is used for calibrating the external rotating body.

[0028] On the basis of the above technical solution, preferably, it also includes an air pressure control valve, wherein:

[0029] The air pressure control valve is arranged on the top shell.

[0030] The dynamic balancing tester of the utility model has the following beneficial effects compared with the prior art:

[0031] (1) The external rotating body is clamped by multiple tube cores and then adjusted by a driving mechanism to drive the multiple tube cores to rotate, so that the present application can perform rotation test processing on each external rotating body without setting up a unique driving tooling. At this time, the shaft drives the external rotating body to rotate through the tube core, and vibration is generated during rotation. At this time, the vibration is transmitted to the vibration component through the core device, and the vibration component vibrates. The longitudinal vibration sensor and the transverse vibration sensor respectively detect the vibration of the vibration component in the longitudinal and transverse directions. During the test, the longitudinal vibration sensor and the transverse vibration sensor can obtain the transverse and longitudinal vibration data generated by the rotation of the external rotating body, which is convenient for use.

[0032] (2) Specifically, when connecting an external rotating body, an infrared laser disposed on the top shell emits a mapping infrared ray toward the sandwich device. The mapping line is aligned with the starting point on the rotating body, which is the zero-degree point. The rotating body can be accurately positioned in conjunction with the angle scale line disposed on the assembly platform. Therefore, there is no need to stick reflective paper on the rotating body. The use is flexible and convenient, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a three-dimensional diagram of the dynamic balancing test machine of the utility model;

[0035] Figure 2 It is a three-dimensional schematic diagram of the dynamic balancing test machine of the utility model after the top shell of the machine is removed;

[0036] Figure 3 The utility model of the dynamic balancing test machine Figure 2 The structure shown is a three-dimensional schematic diagram after the base shell is removed;

[0037] Figure 4 It is a schematic diagram of the connection between the vibration assembly and the mounting seat of the dynamic balancing test machine of the utility model;

[0038] Figure 5 The utility model of the dynamic balancing test machine Figure 4 a rear perspective view of the structure shown;

[0039] Figure 6 It is a front view of the core sandwich device of the dynamic balancing test machine of the utility model;

[0040] Figure 7 The utility model of the dynamic balancing test machine Figure 6 A cross-sectional view of the structure at AA is shown. DETAILED DESCRIPTION

[0041] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] like Figures 1 to 7 As shown, the dynamic balancing test machine of the utility model is characterized in that it includes a machine base 1, a mounting base 3, a vibration assembly 4, a sandwich device 5 and a driving mechanism 6, wherein the mounting base 3 is arranged on the machine base 1, and the vibration assembly 4 is arranged on the mounting base 3 and is movably connected with the mounting base 3, the vibration assembly 4 includes a longitudinal vibration sensor 45 and a lateral vibration sensor 46; the sandwich device 5 is arranged on the vibration assembly 4 and extends the top of the machine base 1, including a rotating shaft 52 and a plurality of tube sandwiches 55, the rotating shaft 52 is rotatably arranged relative to the machine base 1, and the plurality of tube sandwiches 55 are all arranged at the end of the rotating shaft 52 for clamping an external rotating body, the longitudinal vibration sensor 45 is used to monitor the longitudinal vibration of the sandwich device 5, and the lateral vibration sensor 46 is used to monitor the lateral vibration of the sandwich device 5; the driving mechanism 6 is used to drive the rotating shaft 52 to rotate.

[0043] In the specific implementation, the external rotating body is placed on the top of the machine base 1, and the clamping process of the external rotating body is completed through multiple tube cores 55, and then the rotating shaft 52 is driven to rotate by the driving mechanism 6. At this time, the rotating shaft 52 drives the external rotating body to rotate through the tube core 55, and vibration will be generated during rotation. At this time, the vibration is transmitted to the vibration component 4 through the core device 5, and the vibration component 4 vibrates. The longitudinal vibration sensor 45 and the lateral vibration sensor 46 respectively detect the vibration of the vibration component 4 in the longitudinal and lateral directions, thereby completing the rotation test process of the external rotating body. After the external rotating body is clamped by multiple tube cores 55, it is adjusted to drive the multiple tube cores 55 to rotate through the driving mechanism 6, so that the present application can perform rotation test processes on each external rotating body without setting up a unique driving tool. During the test, the lateral and longitudinal vibration data generated by the external rotating body during rotation can be obtained through the longitudinal vibration sensor 45 and the lateral vibration sensor 46, which is convenient to use.

[0044] As a preferred embodiment, the vibration component 4 also includes an assembly seat 41, a transverse spring rod 42, a longitudinal spring rod 43 and a mounting frame 44, wherein the assembly seat 41 is located at the top of the mounting seat 3, and the assembly seat 41 is connected to the mounting seat 3 through the transverse spring rod 42 and the longitudinal spring rod 43, and the transverse spring rod 42 and the longitudinal spring rod 43 are perpendicular to each other; the mounting frame 44 is arranged on the assembly seat 41, and the longitudinal vibration sensor 45 and the transverse vibration sensor 46 are both arranged on the mounting frame 44.

[0045] In a specific implementation, when the rotating external rotating body vibrates, the vibration is transmitted to the assembly seat 41 through the sandwich device 5. At this time, the assembly seat 41 generates lateral and longitudinal vibrations, and the lateral spring rod 42 and the longitudinal spring rod 43 vibrate to different degrees, thereby causing the assembly seat 41 to undergo lateral and longitudinal displacements. The longitudinal vibration sensor 45 and the lateral vibration sensor 46 are used to monitor the longitudinal and lateral displacements of the assembly seat 41 respectively, thereby completing the test processing of the vibration generated by the external rotating body.

[0046] As a preferred embodiment, the mounting seat 3 includes a connecting seat 31 and a supporting seat 32, wherein the connecting seat 31 and the supporting seat 32 are respectively located on both sides of the assembly seat 41, and the height of the connecting seat 31 is higher than the supporting seat 32, the supporting seat 32 is used to support the assembly seat 41, and the transverse spring rod 42 is connected to the connecting seat 31.

[0047] The connection process of the transverse spring rod 42 is facilitated by setting the height of the connecting seat 31 higher than the supporting seat 32 .

[0048] As a preferred embodiment, the sandwich device 5 also includes a device body 51 and a first pulley 53, wherein the device body 51 is arranged on the assembly seat 41, and the rotating shaft 52 is rotatably arranged on the inner side of the device body 51 and is slidably connected to the device body 51, the device body 51 includes a limiting cylinder 511, the tube core 55 is an elastic sheet, the limiting cylinder 511 is located on the peripheral side of the tube core 55, and is used to extrude multiple tube cores 55; the first pulley 53 is rotatably connected to the device body 51, and is slidably connected to the rotating shaft 52, and the driving mechanism 6 is used to drive the first pulley 53 to rotate.

[0049] Specifically, when clamping the external rotating body, the adjustment shaft 52 slides toward the top relative to the device body 51, and the tube core 55 slides to the protruding limit tube 511, and expands outward under its own elasticity, inserting the external rotating body into the interior of the plurality of tube cores 55, and then adjusting the shaft 52 to slide to reset, and the tube core 55 is re-inserted into the interior of the limit tube 511, and the tube core 55 shrinks inward and clamps the external rotating body under the limit of the limit tube 511, thereby completing the clamping process of the external rotating body. After plugging, the first pulley 53 is adjusted to rotate, and the first pulley 53 drives the shaft 52 to rotate, thereby completing the rotation adjustment process of the external rotating body.

[0050] As a preferred embodiment, it also includes a cylinder 71 and a push block 72, and the sandwich device 5 also includes a spring 54, wherein the spring 54 is sleeved on the circumferential side of the rotating shaft 52 and is fixedly connected to the rotating shaft 52 and the first pulley 53; the cylinder 71 is arranged on the mounting seat 3, and the telescopic end of the cylinder 71 is telescoped toward the rotating shaft 52; the push block 72 is arranged on the telescopic end of the cylinder 71, and is used to resist the rotating shaft 52.

[0051] Specifically, when the adjustment shaft 52 slides upward, the telescopic end of the start cylinder 71 is extended, and the push block 72 moves upward and presses the shaft 52, so that the shaft 52 moves upward and squeezes the spring 54. After the external rotating body is inserted into the interior of each tube clamp core 55, the telescopic end of the adjustment cylinder 71 is contracted. At this time, the push block 72 moves to separate from the shaft 52, and the shaft 52 can automatically reset under the action of the spring 54, automatically completing the clamping process of the external rotating body.

[0052] As a preferred embodiment, an arc-shaped protrusion 521 is provided at the end of the rotating shaft 52 , and the arc-shaped protrusion 521 is used to abut against the pushing block 72 .

[0053] By providing the arc-shaped protrusion 521 , the rotating shaft 52 can be subjected to force at the center point when being lifted up, thereby increasing the sliding stability of the rotating shaft 52 .

[0054] As a preferred embodiment, the driving mechanism 6 includes a motor 61, a second pulley 62 and a transmission belt 63, wherein the motor 61 is fixedly connected to the base 1, the second pulley 62 is arranged at the output end of the motor 61, and the transmission belt 63 is transmission-connected to the first pulley 53 and the transmission belt 63.

[0055] Specifically, when driving the first pulley 53 to rotate, the motor 61 is started, and the motor 61 drives the second pulley 62 to rotate. The second pulley 62 drives the first pulley 53 to rotate through the transmission belt 63, thereby completing the rotation adjustment process of the rotating shaft 52.

[0056] As a preferred embodiment, the machine base 1 includes an assembly platform 11, the core device 5 passes through the assembly platform 11 and extends to the top of the machine base 1, and a plurality of angle scale lines 12 are arranged on the assembly platform 11, and the plurality of angle scale lines 12 are equidistantly distributed in the circumferential direction.

[0057] It also includes a top shell 2 and an infrared laser 81, wherein the top shell 2 is arranged on the top of the base 1, and the sandwich device 5 is located on the inner side of the top shell 2, and one side of the top shell 2 is open; the infrared laser 81 is arranged inside the top shell 2 for calibrating the external rotating body.

[0058] With this design, when connecting an external rotating body, a mapping infrared ray is emitted toward the sandwich device 5 through the infrared laser 81 arranged on the top shell 2. The mapping line is aligned with the starting point on the rotating body, which is the zero-degree point. The rotating body can be accurately positioned in conjunction with the angle scale line 12 arranged on the assembly platform 11. Therefore, there is no need to stick reflective paper on the rotating body. It is flexible and convenient to use, which improves work efficiency.

[0059] As a preferred embodiment, it also includes an air pressure control valve 82, wherein the air pressure control valve 82 is arranged on the top shell 2.

[0060] The working principle of the utility model is introduced as follows:

[0061] The telescopic end of the regulating cylinder 71 is extended. At this time, the pushing block 72 pushes up the rotating shaft 52, the rotating shaft 52 slides, the spring 54 is compressed, and the multiple tube cores 55 protrude from the limiting tube 511 and expand outward under the action of their own elasticity, inserting the external rotating body into the interior of the multiple tube cores 55, and adjusting the cylinder 71 to shrink. At this time, the rotating shaft 52 automatically slides downward under the action of the spring 54, and drives the tube core 55 to be inserted into the interior of the limiting tube 511. The tube core 55 shrinks inward under the limitation of the limiting tube 511 and clamps the external rotating body, thereby completing the clamping process of the external rotating body. Then start the motor 61. At this time, the motor 61 drives the second pulley 62 to rotate. The second pulley 62 drives the first pulley 53 to rotate through the transmission belt 63. The first pulley 53 drives the rotating shaft 52 to rotate, thereby completing the rotation adjustment processing of the external rotating body. At this time, the rotating rotating body generates vibration, and the vibration is transmitted to the assembly seat 41 through the sandwich device 5. At this time, the transverse spring rod 42 and the longitudinal spring rod 43 are compressed under the action of elasticity. The longitudinal vibration sensor 45 and the transverse vibration sensor 46 detect the vibration size generated by the assembly seat 41 in the longitudinal and transverse directions, thereby completing the dynamic balance test processing of the external rotating body.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dynamic balancing test machine, characterized in that: It comprises a machine base (1), a mounting base (3), a vibration assembly (4), a core device (5) and a driving mechanism (6), wherein: A mounting seat (3) is arranged on the machine base (1), and the vibration assembly (4) is arranged on the mounting seat (3) and movably connected to the mounting seat (3), and the vibration assembly (4) includes a longitudinal vibration sensor (45) and a transverse vibration sensor (46); A core sandwich device (5) is arranged on the vibration assembly (4) and extends from the top of the machine base (1), comprising a rotating shaft (52) and a plurality of tube cores (55), wherein the rotating shaft (52) is rotatably arranged relative to the machine base (1), and the plurality of tube cores (55) are arranged at the ends of the rotating shaft (52) for clamping an external rotating body, the longitudinal vibration sensor (45) is used to monitor the longitudinal vibration of the core sandwich device (5), and the transverse vibration sensor (46) is used to monitor the transverse vibration of the core sandwich device (5); The driving mechanism (6) is used for driving the rotating shaft (52) to rotate.

2. The dynamic balancing tester according to claim 1, characterized in that: The vibration assembly (4) further comprises an assembly seat (41), a transverse spring rod (42), a longitudinal spring rod (43) and a mounting frame (44), wherein: The assembly seat (41) is located at the top of the mounting seat (3), and the assembly seat (41) is connected to the mounting seat (3) through the transverse spring rod (42) and the longitudinal spring rod (43), and the transverse spring rod (42) and the longitudinal spring rod (43) are perpendicular to each other; A mounting frame (44) is arranged on the assembly seat (41), and the longitudinal vibration sensor (45) and the transverse vibration sensor (46) are both arranged on the mounting frame (44).

3. The dynamic balancing tester according to claim 2, characterized in that: The mounting seat (3) comprises a connecting seat (31) and a supporting seat (32), wherein: The connecting seat (31) and the supporting seat (32) are respectively located on two sides of the assembly seat (41), and the height of the connecting seat (31) is higher than that of the supporting seat (32). The supporting seat (32) is used to support the assembly seat (41), and the transverse spring rod (42) is connected to the connecting seat (31).

4. The dynamic balancing tester according to claim 2, characterized in that: The sandwich device (5) further comprises a device body (51) and a first pulley (53), wherein: The device body (51) is arranged on the assembly seat (41), and the rotating shaft (52) is rotatably arranged on the inner side of the device body (51) and is slidably connected with the device body (51), the device body (51) includes a limiting cylinder (511), the cylinder core (55) is an elastic sheet, and the limiting cylinder (511) is located on the peripheral side of the cylinder core (55) and is used to extrude a plurality of the cylinder cores (55); The first belt pulley (53) is rotatably connected to the device body (51) and is slidably connected to the rotating shaft (52). The driving mechanism (6) is used to drive the first belt pulley (53) to rotate.

5. The dynamic balancing tester according to claim 4, characterized in that: It also includes a cylinder (71) and a push block (72), and the core sandwich device (5) also includes a spring (54), wherein: A spring (54) is sleeved on the circumference of the rotating shaft (52) and is fixedly connected to the rotating shaft (52) and the first pulley (53); A cylinder (71) is arranged on the mounting seat (3), and the telescopic end of the cylinder (71) telescopes toward the rotating shaft (52); A push block (72) is arranged on the telescopic end of the cylinder (71) and is used to abut against the rotating shaft (52).

6. The dynamic balancing tester according to claim 5, characterized in that: An arc-shaped protrusion (521) is provided at the end of the rotating shaft (52), and the arc-shaped protrusion (521) is used to abut against the pushing block (72).

7. The dynamic balancing tester according to claim 4, characterized in that: The driving mechanism (6) comprises a motor (61), a second pulley (62) and a transmission belt (63), wherein: The motor (61) is fixedly connected to the machine base (1), the second pulley (62) is arranged at the output end of the motor (61), and the transmission belt (63) is transmission-connected to the first pulley (53) and the transmission belt (63).

8. The dynamic balancing tester according to claim 1, characterized in that: The machine base (1) comprises an assembly platform (11), the core device (5) passes through the assembly platform (11) and extends to the top of the machine base (1), and a plurality of angle scale lines (12) are arranged on the assembly platform (11), and the plurality of angle scale lines (12) are equidistantly distributed in the circumferential direction.

9. The dynamic balancing tester according to claim 1, characterized in that: It also includes a top case (2) and an infrared laser (81), wherein: A top shell (2) is arranged on the top of the base (1), and the sandwich device (5) is located on the inner side of the top shell (2); one side of the top shell (2) is open; An infrared laser (81) is arranged inside the top housing (2) and is used to calibrate the external rotating body.

10. The dynamic balancing tester according to claim 9, characterized in that: Also included is an air pressure control valve (82), wherein: An air pressure control valve (82) is arranged on the top casing (2).

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