A quick detection device for unbalanced static moment

Abstract

The utility model discloses a kind of unbalance static moment rapid detection devices, including the balancing machine main shaft being set along vertical direction, the top of balancing machine main shaft is sequentially equipped with connecting disc and three-jaw chuck, balancing machine main shaft is fixedly connected with connecting disc, connecting disc and three-jaw chuck are all through screw, three-jaw chuck is used to realize the clamping of the shaft head of balance block assembly;The top of balancing machine main shaft is equipped with supporting tray, the center position of supporting tray is equipped with the positioning column of circular structure;The center position of connecting disc is equipped with the positioning hole of circular structure, connecting disc is set on positioning column by positioning hole, and located above supporting tray.The utility model is on the basis of original balancing machine, through the cooperation with precision three-jaw chuck, realize the quick clamping of balance block assembly and the quick detection of unbalance static moment.

Description

Technical Field

[0001] This utility model relates to a rapid detection device for unbalanced static torque, belonging to the technical field of balancing mechanisms. Background Technology

[0002] Inline four-cylinder engines generate secondary reciprocating inertial forces during operation. To eliminate the influence of these inertial forces and improve the overall reliability and user comfort of the engine, a secondary balancing mechanism needs to be installed inside the engine.

[0003] The imbalance of the balancing mechanism is calculated based on the relevant parameters of each component of the engine crankshaft. Currently, the performance of the secondary balancing mechanism is typically verified through on-machine testing. This necessitates that the design and manufacturing of each component meet standard requirements and that process control be stringent. The main factor affecting the performance of the balancing mechanism is its unbalanced static torque, the magnitude of which is determined by the balance block assembly. Therefore, all indicators of the balance block assembly must meet technical requirements. When inspecting the balance block assembly, in addition to measuring various dimensions, the measurement of the unbalanced static torque is crucial.

[0004] Currently, the counterweight assembly detects unbalanced static moment by means of counterweight. This method involves complex tooling design and manufacturing, and the tooling itself has a significant impact on the amount of unbalance. It is also cumbersome for workers to operate and results in low accuracy of measurement results.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] This invention addresses the shortcomings of the prior art by providing a rapid unbalanced static torque detection device. Based on the existing balancing machine, it can achieve rapid clamping of the balance block assembly and rapid detection of unbalanced static torque by cooperating with a precision three-jaw chuck.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: A rapid unbalanced static torque detection device includes a balancing machine spindle arranged vertically. A connecting plate and a three-jaw chuck are sequentially installed on the top of the balancing machine spindle. The balancing machine spindle and the connecting plate, as well as the connecting plate and the three-jaw chuck, are all fixedly connected by screws. The three-jaw chuck is used to clamp the shaft head of the balance block assembly. A support plate is provided on the top of the balancing machine spindle, and a circular positioning post is provided at the center of the support plate. A circular positioning hole is opened at the center of the connecting plate, and the connecting plate is sleeved on the positioning post through the positioning hole and located above the support plate.

[0008] Furthermore, the diameter of the positioning column is smaller than the diameter of the balancing machine spindle.

[0009] Furthermore, the tray surface is provided with a plurality of first threaded holes distributed in a circular pattern.

[0010] Furthermore, the connecting plate has a plurality of first optical holes arranged in a circular pattern on its surface, and the first optical holes are arranged in a one-to-one correspondence with the first threaded holes. A first screw is installed in the first optical hole and the first threaded hole.

[0011] Furthermore, the connecting plate is provided with a plurality of second threaded holes arranged in a circular pattern on its surface, the second threaded holes being located between the positioning hole and the first optical hole.

[0012] Furthermore, the bottom of the three-jaw chuck is provided with a plurality of second optical holes distributed in a circular pattern; the second optical holes and the second threaded holes are arranged in a one-to-one correspondence, and the second screws are installed in the second optical holes and the second threaded holes.

[0013] Furthermore, both the second screw and the first screw are internal hexagonal screws, and the second screw is smaller than the first screw.

[0014] Furthermore, the balance block assembly includes a balance shaft and a balance block, with the balance shaft and balance block connected by a locating pin.

[0015] Furthermore, the balance shaft has mounting holes in the radial direction for the locating pin to pass through.

[0016] Furthermore, it also includes standard templates.

[0017] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: This invention utilizes an existing balancing machine, which is mainly used for removing counterweights. Based on the existing balancing machine, this invention features a specially designed spindle. A precision three-jaw chuck is mounted on the spindle using a connecting plate. The product's balance block assembly is clamped by the precision three-jaw chuck, enabling rapid detection of unbalanced static torque. This greatly improves detection accuracy and efficiency, reduces costs, and ensures product reliability.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the balance block assembly; Figure 4 This is a schematic diagram of the present invention in the calibration state.

[0020] In the diagram, 1-balance machine spindle, 11-bearing plate, 12-positioning pin, 13-first threaded hole; 2-connecting plate, 21-positioning hole, 22-first smooth hole, 23-second threaded hole; 3-three-jaw chuck, 31-second smooth hole; 4-balance block assembly, 41-balance shaft, 42-balance block, 43-positioning pin; 5-first screw; 6-second screw; 7-standard sample shaft. Detailed Implementation

[0021] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown in the figure, this utility model provides a rapid detection device for unbalanced static torque, including a balancing machine spindle 1 arranged in a vertical direction. A connecting plate 2 and a three-jaw chuck 3 are sequentially installed on the top of the balancing machine spindle 1. The balancing machine spindle 1 and the connecting plate 2, and the connecting plate 2 and the three-jaw chuck 3 are all fixedly connected by screws. The three-jaw chuck 3 is used to clamp the shaft head of the balance block assembly 4.

[0023] The top of the balancing machine spindle 1 is provided with a support tray 11, and a circular positioning post 12 is provided at the center of the support tray 11. The diameter of the positioning post 12 is smaller than the diameter of the balancing machine spindle 1. Multiple first threaded holes 13 are provided on the surface of the support tray 11 in a circular arrangement.

[0024] A circular positioning hole 21 is provided at the center of the connecting plate 2. The connecting plate 2 is sleeved on the positioning post 12 through the positioning hole 21 and is located above the support plate 11.

[0025] The connecting plate 2 has a plurality of first light holes 22 arranged in a circular pattern on its surface. The first light holes 22 are arranged in a one-to-one correspondence with the first threaded holes 13. First screws 5 are installed in the first light holes 22 and the first threaded holes 13. The first screws 5 fix the connecting plate 2 to the support plate 11.

[0026] The connecting disk 2 is also provided with a plurality of second threaded holes 23 arranged in a circular pattern on its disk surface. The second threaded holes 23 are located between the positioning hole 21 and the first light hole 22.

[0027] The three-jaw chuck 3 is a precision three-jaw chuck. The bottom of the three-jaw chuck 3 is provided with a plurality of second optical holes 31 arranged in a circular pattern. The second optical holes 31 and the second threaded holes 23 are arranged in a one-to-one correspondence. The second screws 6 are installed in the second optical holes 31 and the second threaded holes 23. The second screws 6 fix the three-jaw chuck 3 to the connecting plate 2.

[0028] Both the second screw 6 and the first screw 5 are internal hexagon screws, and the size of the second screw 6 is smaller than the size of the first screw 5.

[0029] The balance block assembly 4 includes a balance shaft 41 and a balance block 42. The balance shaft 41 and the balance block 42 are connected by a locating pin 43. The balance shaft 41 is provided with a mounting hole in the radial direction for the locating pin 43 to pass through.

[0030] This utility model also includes a standard sample shaft 7, which is used for calibration of the testing device.

[0031] The specific working principle of this utility model is as follows: Before performing the unbalanced static torque test, insert the standard sample shaft 7 into the central hole of the three-jaw chuck 3, tighten the three-jaw chuck 3 evenly, and drive the standard sample shaft 7 to rotate through the main shaft 1 of the balancing machine. The testing device is calibrated by setting the clamp compensation function of the balancing machine.

[0032] After calibration, remove the standard sample shaft 7, insert the shaft head of the balance block assembly 4 into the central hole of the three-jaw chuck 3, tighten the three-jaw chuck 3 evenly, and the main shaft 1 of the balancing machine drives the balance block assembly 4 to rotate. After the test is completed, directly read the unbalance amount and the measurement radius on the display screen of the balancing machine. The product of the two is the unbalance static torque of the balance block assembly 4.

[0033] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A rapid detection device for unbalanced static torque, characterized in that: The balancing machine includes a vertically arranged main shaft (1), a connecting plate (2) and a three-jaw chuck (3) are installed on the top of the main shaft (1) in sequence. The main shaft (1) and the connecting plate (2), and the connecting plate (2) and the three-jaw chuck (3) are all fixedly connected by screws. The three-jaw chuck (3) is used to clamp the shaft head of the balance block assembly (4). The top of the main shaft (1) of the balancing machine is provided with a support plate (11), and a circular positioning post (12) is provided at the center of the support plate (11). A circular positioning hole (21) is opened at the center of the connecting plate (2). The connecting plate (2) is sleeved on the positioning post (12) through the positioning hole (21) and is located above the support plate (11).

2. The unbalanced static torque rapid detection device as described in claim 1, characterized in that: The diameter of the positioning column (12) is smaller than the diameter of the balancing machine spindle (1).

3. The unbalanced static torque rapid detection device as described in claim 1, characterized in that: The tray (11) has multiple first threaded holes (13) arranged in a circular pattern on its surface.

4. The unbalanced static torque rapid detection device as described in claim 3, characterized in that: The connecting plate (2) has a plurality of first light holes (22) arranged in a circular pattern on its surface. The first light holes (22) and the first threaded holes (13) are arranged in a one-to-one correspondence. The first screws (5) are installed in the first light holes (22) and the first threaded holes (13).

5. The unbalanced static torque rapid detection device as described in claim 4, characterized in that: The connecting plate (2) is also provided with a plurality of second threaded holes (23) arranged in a circular pattern on its surface. The second threaded holes (23) are located between the positioning hole (21) and the first light hole (22).

6. The unbalanced static torque rapid detection device as described in claim 5, characterized in that: The bottom of the three-jaw chuck (3) is provided with a plurality of second light holes (31) arranged in a circular pattern; the second light holes (31) and the second threaded holes (23) are arranged in a one-to-one correspondence, and the second screws (6) are installed in the second light holes (31) and the second threaded holes (23).

7. The unbalanced static torque rapid detection device as described in claim 6, characterized in that: Both the second screw (6) and the first screw (5) are internal hexagon screws, and the size of the second screw (6) is smaller than that of the first screw (5).

8. The unbalanced static torque rapid detection device as described in claim 1, characterized in that: The balance block assembly (4) includes a balance shaft (41) and a balance block (42), with the balance shaft (41) and the balance block (42) connected by a locating pin (43).

9. The unbalanced static torque rapid detection device as described in claim 8, characterized in that: The balance shaft (41) has mounting holes in the radial direction for the locating pin (43) to pass through.

10. The unbalanced static torque rapid detection device as described in claim 1, characterized in that: It also includes standard templates (7).

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