阅读说明：本技术 一种轮毂动平衡和气门嘴质量补偿模型的测试装置 (Testing device for dynamic balance and inflating valve quality compensation model of hub ) 是由 徐志龙 曹承伟 程勇 赵立 陆小勇 胡宇清 于 2021-06-29 设计创作，主要内容包括：本发明公开了一种轮毂动平衡和气门嘴质量补偿模型的测试装置,涉及轮毂动平衡技术领域,包括：动平衡机主体,所述动平衡机主体内固定设置有电机,所述电机的驱动端固定连接有主轴,所述主轴的一端转动连接有万向联轴节,所述万向联轴节的一端转动连接有心轴,所述心轴上套设有轮毂,所述动平衡机主体内固定连接有两个支撑架,本发明中,通过质量调节机构中进气管与固定管之间的相对滑动,并利用固定组件将进气管定位,也即是调节气门嘴的长度,从而达到改变气门嘴质量的目的,替代了传统更换配重块的操作,与之相比较,节省了轮毂的动平衡测试所消耗的时间,提高了轮毂的动平衡测试的效率,有助于轮毂的动平衡测试。(The invention discloses a testing device for a dynamic balance and inflating valve quality compensation model of a wheel hub, which relates to the technical field of dynamic balance of the wheel hub and comprises the following components: the dynamic balancing machine comprises a dynamic balancing machine body, wherein a motor is fixedly arranged in the dynamic balancing machine body, a driving end of the motor is fixedly connected with a main shaft, one end of the main shaft is rotatably connected with a universal coupling, one end of the universal coupling is rotatably connected with a mandrel, a wheel hub is sleeved on the mandrel, and two supporting frames are fixedly connected in the dynamic balancing machine body.)

1. The utility model provides a testing arrangement of wheel hub dynamic balance and inflating valve quality compensation model which characterized in that includes:

the dynamic balancing machine comprises a dynamic balancing machine body (1), wherein a motor is fixedly arranged in the dynamic balancing machine body (1), a main shaft is fixedly connected to the driving end of the motor, a universal coupling (2) is rotatably connected to one end of the main shaft, a spindle (7) is rotatably connected to one end of the universal coupling (2), a wheel hub (5) is sleeved on the spindle (7), two support frames (10) are fixedly connected in the dynamic balancing machine body (1), two rotating wheels (3) are rotatably connected to the support frames (10), and the spindle (7) is placed at the tops of the rotating wheels (3);

the quality adjusting mechanism comprises an air inlet pipe (4) and a fixed pipe (12), the air inlet pipe (4) is connected with the fixed pipe (12) in a sliding manner, the fixed pipe (12) is fixedly arranged in a hub (5), a one-way valve is fixedly arranged in the air inlet pipe (4), one end of the air inlet pipe (4) is fixedly connected with an elastic leather hose (13), the other end of the elastic leather hose (13) is fixedly connected with the inner wall of the fixed pipe (12), a fixed component is arranged in the fixed pipe (12), the fixed component can position the position of the air inlet pipe (4), the fixed component comprises two mounting grooves formed in the fixed pipe (12), a plurality of clamp springs (20) are fixedly connected in the mounting grooves, one ends of the clamp springs (20) are fixedly connected with a clamping plate (14), and a plurality of clamping grooves matched with the clamping plate (14) are formed in the air inlet pipe (4), the utility model discloses a lead screw, including fixed pipe (12), fixed pipe (12) internal rotation is connected with two lead screws (15), the both ends of block board (14) all run through the screw through-hole of seting up with lead screw (15) looks adaptation, the top fixedly connected with mounting bracket (16) of fixed pipe (12), the top fixedly connected with driven gear (17) of lead screw (15), set up in mounting bracket (16) and supply driven gear (17) pivoted rotation groove, it is connected with the connecting rod to rotate the inslot internal rotation, fixedly connected with driving gear (18) on the connecting rod, driving gear (18) are connected with driven gear (17) meshing.

2. The testing device for the dynamic balance of the hub and the quality compensation model of the air valve according to claim 1, wherein a knob (19) is fixedly connected to the top of the connecting rod, and the knob (19) is installed outside the mounting frame (16).

3. The testing device for the dynamic balance of the hub and the quality compensation model of the inflating valve according to claim 1, wherein a clamping rod (9) is rotatably connected to the supporting frame (10), a roller (8) is rotatably connected to the clamping rod (9), and one side of the roller (8) is in contact with the mandrel (7).

4. A testing device for a dynamic balance of a wheel hub and a quality compensation model of an air valve according to claim 3, characterized in that a handle (6) is fixedly connected with one end of the clamping rod (9).

5. The testing device for the dynamic balance and valve nozzle mass compensation model of the wheel hub is characterized in that a graduated scale (23) is fixedly connected to one side of the air inlet pipe (4), an indicating plate (22) is fixedly connected to one side of the fixed pipe (12), and the indicating plate (22) corresponds to the graduated scale (23) in position.

6. The testing device for the dynamic balance and valve mass compensation model of the wheel hub as claimed in claim 5, wherein the indicator plate (22) is pasted with a sticker (21), and the sticker (21) is located at the end of the indicator plate (22).

7. The testing device for the dynamic balance of the wheel hub and the mass compensation model of the air valve according to claim 1, wherein a limiting groove is formed in the mounting frame (16), a connecting spring (25) is fixedly connected in the limiting groove, one end of the connecting spring (25) is fixedly connected with a rack (24), and the rack (24) is meshed with the driving gear (18).

8. The testing device for the dynamic balance of the hub and the mass compensation model of the air valve according to claim 7 is characterized in that a pushing block (29) is fixedly connected to the top of the rack (24), and a sliding opening matched with the pushing block (29) is formed in the mounting frame (16).

9. The testing device for the dynamic balance of the hub and the mass compensation model of the air valve according to claim 8, wherein a hook rod (27) is rotatably connected to the top of the mounting frame (16), and a limiting opening matched with the hook rod (27) is formed in the top of the push block (29).

10. The testing device for the dynamic balance of the wheel hub and the quality compensation model of the air valve according to claim 1, wherein a butt plate (30) is fixedly arranged at the top of the mounting frame (16), a sliding groove is formed in the mounting frame (16), a guide rod (26) is fixedly connected in the sliding groove, a connecting cover (11) is slidably connected on the guide rod (26), the connecting cover (11) is plugged with the butt plate (30), and a non-slip mat (28) is fixedly connected at the top of the connecting cover (11).

Technical Field

The invention relates to the technical field of dynamic balance of hubs, in particular to a testing device for a dynamic balance and inflating valve quality compensation model of a hub.

Background

And the dynamic balancing machine is used for measuring the size and the position of the unbalance of the rotating object. The main performance of the dynamic balancing machine is two comprehensive indexes of minimum achievable residual unbalance amount and reduction rate of the dynamic balancing machine, wherein the minimum achievable residual unbalance amount is the minimum value of the residual unbalance amount which can be achieved by the balancing machine and is an index for measuring the highest balance capability of the balancing machine; the latter is the ratio of the amount of unbalance reduced after one correction to the initial amount of unbalance.

The existing wheel hub dynamic balance test generally drives a main shaft through a motor inside a dynamic balancing machine, the main shaft drives a universal coupling, a mandrel and a wheel hub on the mandrel which are sequentially connected to rotate, and the size and the position of the unbalance amount of the wheel hub are detected.

Disclosure of Invention

The invention provides a testing device for a dynamic balance and inflating valve quality compensation model of a hub, which solves the technical problems that when the quality of an inflating valve is changed by the hub, a balancing weight needs to be frequently replaced, the time consumed by the dynamic balance test of the hub is prolonged, the efficiency of the dynamic balance test of the hub is further reduced, and the dynamic balance test of the hub is inconvenient.

In order to solve the above technical problems, the present invention provides a testing apparatus for a dynamic balance and valve train valve quality compensation model, comprising:

the dynamic balancing machine comprises a dynamic balancing machine body, wherein a motor is fixedly arranged in the dynamic balancing machine body, the driving end of the motor is fixedly connected with a main shaft, one end of the main shaft is rotatably connected with a universal coupling, one end of the universal coupling is rotatably connected with a mandrel, a wheel hub is sleeved on the mandrel, two support frames are fixedly connected in the dynamic balancing machine body, two rotating wheels are rotatably connected in the support frames, and the mandrel is placed at the tops of the rotating wheels;

the quality adjusting mechanism comprises an air inlet pipe and a fixed pipe, the air inlet pipe is connected with the fixed pipe in a sliding mode, the fixed pipe is fixedly installed in a wheel hub, a one-way valve is fixedly arranged in the air inlet pipe, one end of the air inlet pipe is fixedly connected with an elastic leather hose, the other end of the elastic leather hose is fixedly connected with the inner wall of the fixed pipe, a fixed assembly is arranged in the fixed pipe and can be used for positioning the position of the air inlet pipe, the fixed assembly comprises two installation grooves formed in the fixed pipe, a plurality of clamp springs are fixedly connected in the installation grooves, one ends of the clamp springs are fixedly connected with a clamping plate, a plurality of clamping grooves matched with the clamping plate are formed in the air inlet pipe, two lead screws are rotatably connected in the fixed pipe, and threaded through holes matched with the lead screws penetrate through the two ends of the clamping plate, the top fixedly connected with mounting bracket of fixed pipe, the top fixedly connected with driven gear of lead screw, it supplies driven gear pivoted rotation groove to have seted up in the mounting bracket, it is connected with the connecting rod to rotate the inslot rotation, fixedly connected with driving gear on the connecting rod, the driving gear is connected with the driven gear meshing.

Preferably, the top fixedly connected with knob of connecting rod, the knob is installed in the outside of mounting bracket, and the accessible rotates knob control driving gear and rotates to make and carry out the transmission between driving gear and the driven gear.

Preferably, the support frame is rotatably connected with a clamping rod, the clamping rod is rotatably connected with a roller, one side of the roller is in contact with the mandrel, the clamping rod can be clamped on the support frame, the roller is used for pressing two ends of the mandrel, and the phenomenon of skipping of the mandrel in the rotating process is avoided.

Preferably, one end fixedly connected with handle of kelly, the accessible handle is to the kelly application of force, helps the rotation control to the kelly.

Preferably, one side fixedly connected with scale of intake pipe, one side fixedly connected with indicator plate of fixed pipe, the indicator plate corresponds with scale position, can remove the in-process at the intake pipe, and the length of the inside extension of fixed pipe is followed to the visual observation intake pipe, helps adjusting the quality control of inflating valve.

Preferably, the sticker is pasted on the indicator board and is located at the end part of the indicator board, so that the edge of the indicator board can be distinguished from other parts, and the extended length of the air inlet pipe from the inside of the fixed pipe can be visually observed.

Preferably, a limiting groove is formed in the mounting frame, a connecting spring is fixedly connected in the limiting groove, a rack is fixedly connected to one end of the connecting spring, the rack is meshed with the driving gear and is connected with the driving gear, and the rotation of the driving gear is limited by the meshing of the rack and the driving gear, so that the stability of connection between the clamping plate and the air inlet pipe is further improved.

Preferably, the top of the rack is fixedly connected with a push block, and a sliding opening matched with the push block is formed in the mounting frame, so that the rack can be conveniently controlled to move.

Preferably, the top of mounting bracket is rotated and is connected with the hooked rod, the spacing mouth with hooked rod looks adaptation is seted up at the top of ejector pad, can block the tip card of hooked rod in the spacing mouth to with the position location of connecting spring cooperation to the rack.

Preferably, the fixed butt plate that is provided with in top of mounting bracket, the sliding tray has been seted up in the mounting bracket, fixedly connected with guide bar in the sliding tray, sliding connection has the connection lid on the guide bar, connect the lid and peg graft with the butt plate, the top fixedly connected with slipmat of connecting the lid can cover the knob inside connecting the lid, avoids personnel to touch by mistake and connects the lid.

Compared with the prior art, the testing device for the dynamic balance and valve cock quality compensation model of the hub has the following beneficial effects:

according to the invention, through the relative sliding between the air inlet pipe and the fixed pipe in the mass adjusting mechanism, the air inlet pipe is positioned by the fixed assembly, namely, the length of the inflating valve is adjusted, so that the purpose of changing the quality of the inflating valve is achieved, the traditional operation of replacing the balancing weight is replaced, compared with the operation, the time consumed by the dynamic balance test of the hub is saved, the efficiency of the dynamic balance test of the hub is improved, and the dynamic balance test of the hub is facilitated.

According to the invention, through the matching among the graduated scale, the indicator board and the sticker, the length of the air inlet pipe extending from the inside of the fixed pipe can be visually observed in the moving process of the air inlet pipe, so that the change data of the quality of the inflating valve can be known, and the quality adjustment of the inflating valve can be favorably adjusted.

Drawings

FIG. 1 is a perspective view of a test apparatus for a dynamic balance and valve train mass compensation model of a wheel hub;

FIG. 2 is a schematic structural diagram of an air inlet pipe in a testing device for a dynamic balance and valve train valve mass compensation model of a wheel hub;

FIG. 3 is a schematic structural diagram of a fixed tube in a testing device of a dynamic balance and valve train mass compensation model of a wheel hub;

FIG. 4 is a schematic structural diagram of a testing device for a dynamic balance and valve train mass compensation model of a wheel hub;

FIG. 5 is an enlarged view of the structure at A in FIG. 2;

fig. 6 is an enlarged view of the structure at B in fig. 3.

Reference numbers in the figures: 1. a dynamic balancing machine main body; 2. a universal coupling; 3. a rotating wheel; 4. an air inlet pipe; 5. a hub; 6. a handle; 7. a mandrel; 8. a roller; 9. a clamping rod; 10. a support frame; 11. a connecting cover; 12. a fixed tube; 13. an elastic leather hose; 14. a clamping plate; 15. a screw rod; 16. a mounting frame; 17. a driven gear; 18. a driving gear; 19. a knob; 20. a clamp spring; 21. pasting a paper; 22. an indicator panel; 23. a graduated scale; 24. a rack; 25. a connecting spring; 26. a guide bar; 27. a hook rod; 28. a non-slip mat; 29. a push block; 30. and (7) butting plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Embodiment one, given by fig. 1-6, a testing device for a dynamic balance and valve mass compensation model of a wheel hub,

the method comprises the following steps:

the dynamic balancing machine comprises a dynamic balancing machine body 1, wherein a motor is fixedly arranged in the dynamic balancing machine body 1, the driving end of the motor is fixedly connected with a main shaft, one end of the main shaft is rotatably connected with a universal coupling 2, one end of the universal coupling 2 is rotatably connected with a mandrel 7, a hub 5 is sleeved on the mandrel 7, two support frames 10 are fixedly connected in the dynamic balancing machine body 1, two rotating wheels 3 are rotatably connected in the support frames 10, and the mandrel 7 is placed at the tops of the rotating wheels 3;

the quality adjusting mechanism comprises an air inlet pipe 4 and a fixed pipe 12, the air inlet pipe 4 is connected with the fixed pipe 12 in a sliding manner, the fixed pipe 12 is fixedly arranged in a hub 5, a one-way valve is fixedly arranged in the air inlet pipe 4, one end of the air inlet pipe 4 is fixedly connected with an elastic leather hose 13, the other end of the elastic leather hose 13 is fixedly connected with the inner wall of the fixed pipe 12, a fixing component is arranged in the fixed pipe 12 and can be used for positioning the position of the air inlet pipe 4, the fixing component comprises two mounting grooves formed in the fixed pipe 12, a plurality of clamp springs 20 are fixedly connected in the mounting grooves, one ends of the clamp springs 20 are fixedly connected with a clamping plate 14, a plurality of clamping grooves matched with the clamping plate 14 are formed in the air inlet pipe 4, two lead screws 15 are rotatably connected in the fixed pipe 12, threaded through holes matched with the lead screws 15 are formed in two ends of the clamping plate 14, and an installation frame 16 is fixedly connected to the top of the fixed pipe 12, the top fixedly connected with driven gear 17 of lead screw 15 has seted up in the mounting bracket 16 and has supplied driven gear 17 pivoted to rotate the groove, rotates the inslot internal rotation and is connected with the connecting rod, fixedly connected with driving gear 18 on the connecting rod, and driving gear 18 is connected with driven gear 17 meshing.

In the second embodiment, on the basis of the first embodiment, the top of the connecting rod is fixedly connected with a knob 19, the knob 19 is installed outside the mounting frame 16, and the driving gear 18 can be controlled to rotate by rotating the knob 19, so that the driving gear 18 and the driven gear 17 are driven to transmit.

In the third embodiment, on the basis of the first embodiment, the support frame 10 is rotatably connected with the clamping rod 9, the clamping rod 9 is rotatably connected with the roller 8, one side of the roller 8 is in contact with the mandrel 7, the clamping rod 9 can be clamped on the support frame 10, and the roller 8 is used for pressing two ends of the mandrel 7, so that the occurrence of a rod jumping phenomenon in the rotation process of the mandrel 7 is avoided.

In the fourth embodiment, on the basis of the third embodiment, one end of the clamping rod 9 is fixedly connected with the handle 6, and the clamping rod 9 can be applied with force through the handle 6, so that the rotation control of the clamping rod 9 is facilitated.

Fifth embodiment, on the basis of first embodiment, one side fixedly connected with scale 23 of intake pipe 4, one side fixedly connected with indicator plate 22 of fixed pipe 12, indicator plate 22 corresponds with scale 23 position, can remove the in-process at intake pipe 4, and the length of the inside extension of fixed pipe 12 is followed to the intake pipe 4 of visual observation, helps adjusting the quality control of inflating valve.

Sixth embodiment, on the basis of fifth embodiment, the sticker 21 is attached to the indicator board 22, and the sticker 21 is located at the end of the indicator board 22, so that the edge of the indicator board 22 can be distinguished from other parts, which facilitates visual observation of the length of the air inlet pipe 4 extending from the inside of the fixed pipe 12.

Seventh embodiment, on the basis of the first embodiment, a limiting groove is formed in the mounting frame 16, a connecting spring 25 is fixedly connected in the limiting groove, a rack 24 is fixedly connected to one end of the connecting spring 25, the rack 24 is engaged with the pinion gear 18, and the rack 24 is engaged with the pinion gear 18 to limit the rotation of the pinion gear 18, so that the stability of connection between the engaging plate 14 and the air inlet pipe 4 is further improved.

Eighth embodiment, on the basis of seventh embodiment, the top of rack 24 is fixedly connected with ejector pad 29, and mounting bracket 16 is provided with the sliding opening that matches with ejector pad 29, is convenient for to the mobility control of rack 24.

Ninth, on the basis of the eighth embodiment, the top of the mounting frame 16 is rotatably connected with a hook rod 27, the top of the pushing block 29 is provided with a limiting opening matched with the hook rod 27, the end of the hook rod 27 can be clamped into the limiting opening, and the end of the hook rod 27 is matched with the connecting spring 25 to position the rack 24.

Tenth embodiment, on the basis of first embodiment, the fixed butt plate 30 that is provided with in top of mounting bracket 16, seted up the sliding tray in the mounting bracket 16, fixedly connected with guide bar 26 in the sliding tray, sliding connection has connection lid 11 on the guide bar 26, connects lid 11 and pegs graft with butt plate 30, connects the top fixedly connected with slipmat 28 of lid 11, can cover knob 19 inside connecting lid 11, avoids personnel to touch by mistake and connects lid 11.

Eleventh embodiment, on the basis of the first embodiment, when the measured hub model and the machine are determined, the measured hub model and the machine are constants, and before measurement, the parameters are unknown and need to be determined through a calibration procedure, and the specific operation steps are as follows:

selecting any wheel hub of the same type as the wheel hub to be measured, loading a standard unbalance block (such as a standard weight with known weight) on different positions of the upper end face and the lower end face of the wheel hub for multiple times, driving the wheel hub to rotate, reading a measured value of a horizontal force sensor and a measured value of a vertical force sensor, directly inputting an equation (II) and a simultaneous equation set because the size and the phase of the dynamic unbalance amount of the wheel hub are known (namely the size and the position of the unbalance block). Sometimes, in order to solve equation (II) more accurately, the number of equations exceeds the number of unknown parameters, and the least square method is used to solve the unknown parameters of equation (II).

After the unknown parameters are solved, the inverse function of the equation (II) is solved to obtain the equation (III)

U→1U→2＝f-1(F→h F→v)＝K→′h 1F→′h 2K→′v 1K→′v 2F→h F→v-μ→1μ→2---(III)

Where μ → 1 μ → 2 represents the amount of dynamic unbalance caused by mechanical knot unevenness. However, in the actual calibration process, a standard hub (a hub without unbalance) is not generally adopted, but only a common hub with unbalance is adopted for calibration, so that the equation parameter μ → 1 μ → 2 obtained in the above calibration step actually contains not only the dynamic unbalance caused by the non-uniform mechanical structure, but also the dynamic unbalance contained in the hub for calibration, which causes the problem that the actual measurement is not accurate enough.

In order to remove the dynamic unbalance amount contained in the hub for calibration in the area of mu → 1 mu → 2 and obtain the dynamic unbalance amount only caused by the uneven mechanical structure, the eccentricity compensation is carried out after the calibration of the invention, and the equation of mu → 1 mu → 2 is expressed as the following equation:

μ→1μ→2＝μ→1machineμ→2machine+μ→1tmpμ→2tmp

μ → 1machine μ → 2machine represents the amount of dynamic unbalance due to mechanical structural unbalance, and μ → 1tmp μ → 2tmp represents the amount of dynamic unbalance included in the hub for calibration, and is substituted into equation (III) to obtain the following equation (IV).

0 0＝U→1U→2＝f-1(F→h F→v)＝K→′h 1F→′h 2K→′v 1K→′v 2F→h F→v-(μ→1machineμ→2machine+μ→1tmpμ→2tmp)---(IV)。

The test data for the model SMC inflating valve hub are as follows:

three times of test data of upper unbalance amount and angle: 101.8g, 314 °; 103.6g, 130.1 °; 101.0g, 276 deg.

Three times of test data of the lower unbalance amount and the angle: 30.6g, 139 °; 36.8g, 305.5 °; 27.7g, 96.3 deg.

Sum of the upper and lower parts: 131.4g, 140.4g and 128.7 g.

Static unbalance amount and angle three times of test data: 71.3g, 121 °; 74.2 g; 72 degrees; 70.0g, 64 degrees.

Three times of test data of even unbalance amount and angle: 66.1g, 321 °; 64g of the total weight of the mixture; 221 °; 62g, 164 degrees.

The test data for the inflating valve hub with the model number GB 1796 are as follows:

three times of test data of upper unbalance amount and angle: 201.0g, 214 °; 123.6g, 110.1 °; 131.0g, 176 deg.

Three times of test data of the lower unbalance amount and the angle: 34.6g, 119 °; 26.8g, 325.5 °; 37.7g, 76.3 degrees.

Sum of the upper and lower parts: 132.4g, 143.4g and 118.7 g.

Static unbalance amount and angle three times of test data: 72.3g, 111 °; 54.2 g; 72 degrees; 60.0g, 64 degrees.

Three times of test data of even unbalance amount and angle: 76.1g, 121 °; 84g of a mixture; 221 °; 52g, 364 degrees.

The test data of the inflating valve hub with the model number of GB/T3900-01 are as follows:

three times of test data of upper unbalance amount and angle: 101.0g, 314 °; 153.6g, 210.1 °; 161.0g, 136 deg..

Three times of test data of the lower unbalance amount and the angle: 22.6g, 78 °; 21.8g, 225.5 °; 47.7g, 56.3 deg.

Sum of the upper and lower parts: 112.4g, 140.4g and 108.7 g.

Static unbalance amount and angle three times of test data: 82.3g, 161 °; 58.2 g; 72 degrees; 63.0g, 164 deg.

Three times of test data of even unbalance amount and angle: 62.1g, 141 °; 82.1 g; 221 °; 56.2g, 164 deg.

The working principle is as follows:

and a dynamic balance test implementation step:

the first step is as follows: when the dynamic balancing machine is installed, a motor driving end inside a dynamic balancing machine main body 1 is fixedly connected with a main shaft, then a wheel hub 5 is sleeved on a mandrel 7, the mandrel 7 is placed on a rotating wheel 3 of a supporting frame 10, one end of a universal coupling 2 is rotatably connected with the main shaft, the other end of the universal coupling 2 is rotatably connected with the mandrel 7, an inflating valve is arranged on the wheel hub 5, and a quality adjusting mechanism is arranged inside the inflating valve;

the second step is that: then starting a motor to drive the spindle to drive the universal coupling 2 to rotate, enabling the spindle 7 and the hub 5 to synchronously rotate by the rotation of the universal coupling 2, and measuring the size and the position of the unbalance amount of the rotating hub 5 by using the dynamic balancer body 1;

the third step: in the detection process, the quality of the inflating valve can be adjusted through the quality adjusting mechanism, and multiple groups of tests are carried out to obtain accurate test results.

And adjusting the quality of the inflating valve:

make driving gear 18 rotate through rotating knob 19, driving gear 18's rotation makes two driven gear 17 syntropy rotate, and pull lead screw 15 and rotate, lead screw 15's rotation makes block plate 14 remove and take out from intake pipe 4, then to intake pipe 4 application of force, take out it from fixed pipe 12, through scale 23, cooperation between indicator plate 22 and the sticker 21, can be at intake pipe 4 removal in-process, the length of the inside extension of fixed pipe 12 is followed to audio-visual observation intake pipe 4, thereby know the change data of inflating valve quality, also be the length of adjusting the inflating valve, thereby reach the purpose that changes the inflating valve quality.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.