CN211576458U - Main shaft of truck-mounted tire balancing machine - Google Patents
Main shaft of truck-mounted tire balancing machine Download PDFInfo
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- CN211576458U CN211576458U CN202020474695.8U CN202020474695U CN211576458U CN 211576458 U CN211576458 U CN 211576458U CN 202020474695 U CN202020474695 U CN 202020474695U CN 211576458 U CN211576458 U CN 211576458U
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- clamping jaw
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Abstract
The utility model discloses a card dress tire balancing machine main shaft, concretely relates to tire balance measurement technical field, the balancing machine main shaft of constituteing including main shaft clamping jaw subassembly, built-in cylinder and rotary sealing member, install on the balancing machine main shaft and drive its rotatory drive assembly, and rotary sealing member's bottom is connected with and takes out the subassembly to the unbalance force measurement's that the balancing machine main shaft rotates the in-process and produces strain, the output that takes out the subassembly strain is connected with the charge amplifier who reads the system with the weak signal amplification of its transmission. The utility model discloses, through clamping, the cylinder action of tire press from both sides tightly, motor drive is rotatory, the subassembly transmission signal meets an emergency, the system calculates the dynamic balance detection that the unbalance amount realized the wheel, can make main shaft clamping jaw subassembly give its different centre gripping scopes according to the different specifications of wheel simultaneously, further guarantees its dynamic balance testing process's stability when improving the device adaptability.
Description
Technical Field
The utility model relates to a tire balance measurement technical field, more specifically say, the utility model relates to a balanced quick-witted main shaft of card dress tire.
Background
The tire is a circular elastic rubber product which is assembled on various vehicles or machines and rolls in a grounding mode, is usually arranged on a metal rim, can support a vehicle body, buffers external impact, realizes contact with a road surface and ensures the running performance of the vehicle, and brings rare development opportunities to the tire industry due to rapid development of the domestic automobile industry in recent years.
The dynamic balance measurement of the tire is an important link in the tire manufacturing process, is mainly used for detecting the couple of the tire, the unbalance degree and the angle position of two planes, and can comprehensively measure the dynamic performance of the tire in use compared with a static balance test.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a truck-mounted tire balancing machine main shaft, including the balancing machine main shaft that spindle clamping jaw subassembly, built-in cylinder and rotary sealing member constitute, install the drive assembly that drives its rotation on the balancing machine main shaft, and the bottom of rotary sealing member is connected with the strain extraction subassembly to the unbalanced force measurement that produces in the rotation of balancing machine main shaft, the output of strain extraction subassembly is connected with the charge amplifier who amplifies the weak signal of its transmission for the system reading;
the built-in cylinder drives the spindle clamping jaw assembly to perform centering and clamping on the hub, then the driving assembly drives the main shaft of the balancing machine and the tire to synchronously rotate through the rotary sealing element, the strain taking-out assembly measures and transmits unbalanced force generated in the rotating process, and then the charge amplifier 6 amplifies weak signals transmitted by the strain taking-out assembly so as to output the signals to a system for reading.
In a preferred embodiment, the spindle gripper assembly, the built-in cylinder, the rotary seal, the drive assembly, the strain relief assembly and the charge amplifier are integrally fixed to a horizontal surface via a mounting bracket.
In a preferred embodiment, the strain relief assembly is comprised of a connecting rod and a pressure sensor mounted on the connecting rod.
In a preferred embodiment, the pressure sensor comprises a horizontal pressure sensor and a vertical pressure sensor, which are respectively mounted on the connecting rod.
In a preferred embodiment, the spindle jaw assembly consists of a jaw and a pyramid located inside the jaw and connected to the drive shaft of the built-in cylinder.
In a preferred embodiment, the clamping jaw is in a multi-stage step shape, and the inner peripheral surface of the clamping jaw is flush with the outer peripheral surface of the clamping pyramid and is a slope.
In a preferred embodiment, the driving assembly comprises a driving motor installed on the mounting frame, and an output shaft of the driving motor is connected with a driving wheel which drives a main shaft of the balancing machine to rotate synchronously through a driving belt.
The utility model discloses a technological effect and advantage:
the dynamic balance detection of the wheel is realized by the system calculating the unbalance amount through clamping of the tire, clamping of the cylinder action, rotation of the motor drive and signal transmission of the strain assembly, meanwhile, the spindle clamping jaw assembly can provide different clamping ranges for the spindle clamping jaw assembly according to different specifications of the wheel, and the stability of the dynamic balance detection process of the spindle clamping jaw assembly is further ensured while the adaptability of the device is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the overall structure of the present invention;
FIG. 3 is a schematic structural view of a spindle jaw assembly according to the present invention;
FIG. 4 is a schematic structural view of the built-in cylinder of the present invention;
FIG. 5 is a schematic structural view of a strain relief assembly according to the present invention;
FIG. 6 is a schematic structural view of a rotary seal member according to the present invention;
fig. 7 is a schematic structural diagram of a driving assembly according to the present invention;
fig. 8 is a schematic view of a tool structure of the main shaft of the middle balance machine of the present invention;
fig. 9 is a schematic front view of the main shaft tooling structure of the middle balance machine of the present invention;
fig. 10 is a schematic cross-sectional structure view of fig. 9 in the present invention.
Description of reference numerals: the device comprises a spindle clamping jaw assembly 1, clamping jaws 11, a pyramid 12, a built-in cylinder 2, a rotary sealing piece 3, a driving motor 41, a driving wheel 42, a driving belt 43, a connecting rod 5, a horizontal pressure sensor 51, a vertical pressure sensor 52, a charge amplifier 6 and a mounting frame 7.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
As shown in fig. 1-10:
the first embodiment is as follows:
a main shaft of a truck-mounted tire balancing machine comprises a main shaft clamping jaw assembly 1, a balancing machine main shaft consisting of a built-in cylinder 2 and a rotary sealing element 3, wherein a driving assembly for driving the balancing machine main shaft to rotate is mounted on the balancing machine main shaft, the bottom of the rotary sealing element 3 is connected with a strain taking-out assembly for measuring an unbalanced force generated in the rotating process of the balancing machine main shaft, and the output end of the strain taking-out assembly is connected with a charge amplifier 6 for amplifying a weak signal transmitted by the strain taking-out assembly to a system to read;
the built-in cylinder 2 drives the main shaft clamping jaw assembly 1 to perform centering and clamping on the hub, then the driving assembly drives the main shaft of the balancing machine and the tire to synchronously rotate through the rotary sealing element 3, the strain taking-out assembly measures and transmits unbalanced force generated in the rotating process, and then the charge amplifier 6 amplifies weak signals transmitted by the strain taking-out assembly and outputs the signals to a system for reading.
Firstly, a tire is fixed on a main shaft clamping jaw component 1, then an output shaft of a built-in air cylinder 2 drives the main shaft clamping jaw component 1 to center and clamp a wheel hub in the up-down stretching and pushing process, a driving component drives a main shaft of a balancing machine and the tire to rotate through a rotary sealing member 3 and rotates to the highest speed corresponding to the running speed of a vehicle according to the requirement of dynamic balance measurement, at the moment, uneven centrifugal force and deflection displacement generated by the actual unbalance amount of a wheel assembly are calculated, the balance amount value and the angle direction of the wheel are calculated, a sensor in a strain taking-out component transmits data to calculation software to realize the calculation of the unbalance amount, induced charges are amplified through a charge amplifier 6 and then transmitted to a PCL software system, and the system calculates the size and the direction of the unbalance amount according to a specific.
The whole equipment consisting of the spindle clamping jaw assembly 1, the built-in cylinder 2, the rotary sealing element 3, the driving assembly, the strain taking-out assembly and the charge amplifier 6 is fixed on a horizontal plate surface through the mounting frame 7, and the convenience and the rapidness of the installation of the spindle part are effectively improved by fixing the parts on the horizontal plate surface.
The strain taking-out assembly consists of a connecting rod 5 and a pressure sensor arranged on the connecting rod 5, the spindle generates centrifugal force in the rotating process and conducts the centrifugal force to the pressure sensor through the connecting rod 5 for detection, and the detection accuracy is high.
The pressure sensor comprises a horizontal pressure sensor 51 and a vertical pressure sensor 52, the horizontal pressure sensor 51 and the vertical pressure sensor 52 are respectively installed on the connecting rod 5, centrifugal force generated in the rotating process of the main shaft is divided into horizontal and vertical signals through the connecting rod 5, and then the horizontal and vertical signals are respectively detected through the horizontal pressure sensor 51 and the vertical pressure sensor 52, so that the detection accuracy is further improved.
In the second embodiment, the difference between the present embodiment and the first embodiment is:
while realizing the dynamic balance measurement of the tire in the first embodiment, the truck wheel is given different clamping ranges according to different specifications of the truck wheel:
the spindle clamping jaw assembly 1 is composed of a clamping jaw 11 and a pyramid 12, the pyramid 12 is located on the inner side of the clamping jaw 11, the pyramid 12 is connected with a driving shaft of the built-in cylinder 2, the rotating inertia generated by truck wheels with different sizes and weights in the rotating process is different, the required clamping force is also different, the clamping force provided by the built-in cylinder 2 is fixed under the condition that the air pressure of an air source is constant, and the built-in cylinders 2 with different specifications are customized and selected according to the required clamping force of the wheels, so that the built-in cylinders 2 with different specifications drive the pyramid 12 to apply different pulling or pushing forces to the clamping jaw 11, the acting forces between opposite surfaces of the pyramid 12 and the clamping jaw 11 are different, and the clamping jaw 11 applies different clamping forces to tires;
in addition, according to the specification of an actual tire, the clamping range meets the specification range of the hub center hole, so that the large-range hub center hole is clamped, the centering precision of the tire is within 0.02mm, and the problem that the clamping range of the existing balance spindle is single, and the clamping work requirement of wheels with different qualities, sizes and specifications cannot be met is solved.
The clamping jaw 11 is in a multistage step shape, the inner peripheral surface of the clamping jaw 11 is flatly attached to the outer peripheral surface of the pyramid 12 and is an inclined surface, inclined surrounding surfaces are generated on the periphery of the wheel in the process of interaction between the pyramid 12 and the clamping jaw 11 through the multistage step shape and the inclined surface, the inner diameters of the surrounding surfaces are different from top to bottom, the clamping jaw can better adapt to the requirements of clamping work of wheels with different specifications, and the clamping tightness is improved.
The driving assembly comprises a driving motor 41 arranged on the mounting frame 7, a driving wheel 42 which drives the main shaft of the balancing machine to synchronously rotate through a driving belt 43 is connected to an output shaft of the driving motor 41, the driving motor 41 can be a servo motor and the like which drives the main shaft part to synchronously rotate through the driving belt 43 and the driving wheel 42 and rotates to the highest speed of vehicle running, the main shaft is directly driven to rotate relative to the driving motor 41 through the combined action of the driving wheel 42 and the driving belt 43, and the stability is stronger.
In order to adapt to the attribute of large self unbalance of the truck wheel, a horizontal pressure sensor 51, a vertical pressure sensor 52 and a charge amplifier 6 in the device can accurately sense the centrifugal force generated when the truck wheel rotates and accurately amplify and transmit a measured value to a software system, so that the measurement precision can reach 0.1g, the repeated measurement precision reaches +/-5 g, and the repeated measurement precision greatly exceeds +/-20 g required by the truck wheel industry;
the action of the built-in cylinder 2 is controlled through a solenoid valve controlled by a PLC, meanwhile, a driving shaft main shaft clamping jaw assembly 1 of the built-in cylinder 2 is connected, the action of the built-in cylinder 2 can realize the clamping and loosening of the clamping jaw 11, and meanwhile, the clamping force of the clamping jaw 11 can be controlled through the control of the air inlet pressure of the cylinder;
air supply interface is in the subassembly, this subassembly is connected with the cylinder subassembly, this subassembly transmission of air supply oil of cylinder, driving motor is connected to this subassembly simultaneously, the motor passes through the PLC drive, main shaft clamping jaw subassembly 1, built-in cylinder 2 can be along with rotary seal 3 synchronous revolution, and coaxial precision is within 0.03mm, rotary seal 3 passes through to the rotation of main shaft and the clamp of wheel, because the main shaft is rotatory when ventilating, the cylinder gas circuit of main shaft carries out the conduction of gas circuit through rotary seal 3, it can also make whole part rotatory to make the cylinder ventilate simultaneously.
Principle of operation of the spindle part, see fig. 9-10:
the tire is conveyed to the top plane of the spindle through external conveying equipment, the air pipe connector enters and exits air, the built-in cylinder 2 drives the piston to move downwards, the pyramid 12 connected with the piston rod in the built-in cylinder 2 synchronously moves downwards, and the clamping jaw 11 matched with the pyramid 12 horizontally opens to clamp the center hole of the hub.
It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present disclosure. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.
Claims (7)
1. The utility model provides a card dress tire balancing machine main shaft which characterized in that: the balance machine spindle comprises a spindle clamping jaw assembly, a built-in cylinder and a rotary sealing element, wherein a driving assembly for driving the balance machine spindle to rotate is mounted on the balance machine spindle, the bottom of the rotary sealing element is connected with a strain taking-out assembly for measuring an unbalanced force generated in the rotating process of the balance machine spindle, and the output end of the strain taking-out assembly is connected with a charge amplifier for amplifying a weak signal transmitted by the strain taking-out assembly to a system to read;
the built-in cylinder drives the main shaft clamping jaw assembly to perform centering and clamping on the hub, then the driving assembly drives the main shaft of the balancing machine and the tire to synchronously rotate through the rotary sealing element, the strain taking-out assembly measures and transmits unbalanced force generated in the rotating process, and then the charge amplifier amplifies weak signals transmitted by the strain taking-out assembly so as to output the signals to a system for reading.
2. The truck-mounted tire balancer spindle of claim 1, wherein: the whole equipment consisting of the spindle clamping jaw assembly, the built-in cylinder, the rotary sealing element, the driving assembly, the strain taking-out assembly and the charge amplifier is fixed on the horizontal plate surface through the mounting frame.
3. The spindle of a truck-mounted tire balancing machine according to claim 1 or 2, wherein: the strain taking-out assembly consists of a connecting rod and a pressure sensor arranged on the connecting rod.
4. The truck-mounted tire balancer spindle of claim 3, wherein: the pressure sensor comprises a horizontal pressure sensor and a vertical pressure sensor, and the horizontal pressure sensor and the vertical pressure sensor are respectively installed on the connecting rod.
5. The truck-mounted tire balancer spindle of claim 1, wherein: the spindle clamping jaw assembly is composed of a clamping jaw and a pyramid, the pyramid is located on the inner side of the clamping jaw and connected with a driving shaft of the built-in cylinder.
6. The truck-mounted tire balancer spindle of claim 5, wherein: the clamping jaw is in a multistage step shape, and the inner peripheral surface of the clamping jaw is flush with the outer peripheral surface of the pyramid and is an inclined surface.
7. The truck-mounted tire balancer spindle of claim 1, wherein: the driving assembly comprises a driving motor arranged on the mounting frame, and an output shaft of the driving motor is connected with a driving wheel which drives the main shaft of the balancing machine to synchronously rotate through a driving belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020474695.8U CN211576458U (en) | 2020-04-01 | 2020-04-01 | Main shaft of truck-mounted tire balancing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020474695.8U CN211576458U (en) | 2020-04-01 | 2020-04-01 | Main shaft of truck-mounted tire balancing machine |
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| CN211576458U true CN211576458U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020474695.8U Active CN211576458U (en) | 2020-04-01 | 2020-04-01 | Main shaft of truck-mounted tire balancing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118376350A (en) * | 2024-06-21 | 2024-07-23 | 滨州鲁德曲轴有限责任公司 | Device and method for detecting dynamic balance performance of crankshaft |
-
2020
- 2020-04-01 CN CN202020474695.8U patent/CN211576458U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118376350A (en) * | 2024-06-21 | 2024-07-23 | 滨州鲁德曲轴有限责任公司 | Device and method for detecting dynamic balance performance of crankshaft |
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