A vulcanization inner mold drum auxiliary installation and torque testing method

Abstract

The present invention discloses a method for auxiliary installation and torque testing of a vulcanization inner mold drum, wherein the vulcanization inner mold drum includes a vulcanization inner mold drum main shaft and a transmission shaft that rotates inside the vulcanization inner mold drum main shaft, including a test bench, a motor, a sprocket transmission mechanism and a torque testing mechanism, wherein the vulcanization inner mold drum main shaft is detachably connected to the test bench; the torque testing mechanism includes a rotating shaft and a torque wrench, and the rotating shaft can be rotated by the torque wrench; the sprocket transmission mechanism includes a large sprocket, a small sprocket and a chain, wherein the large sprocket is connected to the output end of the motor, and the large sprocket is connected to the transmission shaft, and the small sprocket is connected to the rotating shaft, and the two ends of the chain are wound around the large sprocket and the small sprocket. The torque wrench is rotated and the vulcanization inner mold drum is driven to rotate through the sprocket transmission mechanism to perform a torque test, and the vulcanization inner mold drum is driven by the motor to perform a motion test on the vulcanization inner mold drum. The test bench of the present application has a simple structure, strong practicality, high efficiency, stability and safety.

Description

Technical Field

[0001] The invention belongs to the field of torque testing, and in particular relates to a vulcanization inner mold drum auxiliary installation and torque testing method. Background Art

[0002] The vulcanization inner mold drum is a new type of tire vulcanization process equipment. It is the inner mold used for tire vulcanization and shaping, and primarily consists of a drive unit, a connecting rod mechanism, and a drum shoe heating device. Its primary function is to vulcanize rubber tires, giving the finished tires an exquisite tread pattern and excellent performance. The vulcanization inner mold drum's mechanism is able to expand and contract freely, meeting certain expansion and contraction ratio requirements, enabling vulcanization and tire removal. Its overall structural stability is excellent, enabling normal operation under the high-temperature and high-pressure vulcanization environment. On the one hand, the vulcanization inner mold drum has a complex structure, limited space, and a large number of parts. On the other hand, the vulcanization inner mold drum's motion stability significantly affects molding accuracy. Existing research has not focused on testing the stability and motion of the inner mold used for vulcanization and shaping. Therefore, to improve manual installation efficiency and conduct dynamic testing, it is necessary to design a test bench for assisted installation and torque testing of the vulcanization inner mold drum to facilitate motion testing and analysis of the vulcanization inner mold drum. Summary of the Invention

[0003] The present invention aims to improve the efficiency of vulcanization inner mold drum installation and facilitate motor selection and motion testing of the vulcanization inner mold drum. This application proposes a method for assisted installation and torque testing of the vulcanization inner mold drum. The test bench assists in the installation of the vulcanization inner mold drum, selects sprocket drive mechanism dimensions as required, and performs torque scaling. This allows for torque testing of the vulcanization inner mold drum using a torque wrench, subsequently calculating the required torque for motor parameter selection, and finally performing motion testing and analysis of the vulcanization inner mold drum.

[0004] The purpose of the present invention can be achieved through the following technical solutions.

[0005] A method for auxiliary installation and torque testing of a vulcanized inner mold drum, wherein the vulcanized inner mold drum comprises a vulcanized inner mold drum main shaft and a transmission shaft rotating inside the vulcanized inner mold drum main shaft, comprising a test bench, a motor, a sprocket transmission mechanism and a torque testing mechanism.

[0006] The spindle mounting member is detachably connected to the test bench and is detachably connected to the spindle of the vulcanization inner mold drum;

[0007] The torque testing mechanism includes a rotating shaft and a torque wrench, and the rotating shaft can be rotated by the torque wrench;

[0008] The sprocket transmission mechanism includes a large sprocket, a small sprocket and a chain. The large sprocket is connected to the output end of the motor, and the large sprocket is connected to the transmission shaft of the vulcanization inner mold drum. The small sprocket is connected to the rotating shaft, and the two ends of the chain are wound around the large sprocket and the small sprocket.

[0009] Furthermore, it also includes a main shaft mounting part, and the main shaft of the vulcanization inner mold drum is detachably connected to the test bench through the main shaft mounting part.

[0010] Furthermore, the spindle mounting member is a flange, which can be fixed to the test bench by bolts, making it easy to disassemble and replace.

[0011] Furthermore, a plurality of flanges of different sizes are provided. When flanges of different sizes are provided, different sizes can be replaced according to actual needs to install different types of vulcanization inner mold drums, which has greater applicability.

[0012] Furthermore, the torque testing mechanism includes a flange and a connector for connecting to the connector of the torque wrench. The flange is fixed to the test bench, the rotating shaft is located within the flange, the connector is connected to one end of the rotating shaft, and the small sprocket is connected to the other end of the rotating shaft. By connecting the connector of the torque wrench to the connector, the rotating shaft can be rotated by turning the torque wrench, thereby driving the sprocket transmission mechanism to move.

[0013] Furthermore, the motor is a servo motor, which has a strong overload capacity and runs smoothly at low speed, and is more suitable for this occasion.

[0014] Furthermore, the large sprocket is detachably connected to the output end of the motor, the large sprocket is detachably connected to the transmission shaft, and the small sprocket is detachably connected to the rotating shaft. The detachable connection makes it easy to change the size of the sprocket according to actual needs.

[0015] Furthermore, the large sprocket is connected to the output end of the motor by a key, the large sprocket is connected to the transmission shaft by a key, and the small sprocket is connected to the rotating shaft by a key.

[0016] Compared with the prior art, the beneficial effects of the present invention are at least as follows: by replacing the flange, different models of vulcanization inner mold drums can be assisted in installation, the operation is convenient and simple, and the product is universalized; the rotating shaft torque of the vulcanization inner mold drum is scaled by the sprocket transmission mechanism, the rotating shaft torque of the torque testing mechanism is reduced, and it is convenient for the torque wrench to perform torque testing; the sprocket size can be replaced in the sprocket transmission mechanism to flexibly change the torque scaling coefficient; the vulcanization inner mold drum is driven by a motor to perform motion testing on the vulcanization inner mold drum, which can facilitate verification of the accuracy of the torque test and analysis of the motion smoothness of the vulcanization inner mold drum; this test bench has a simple structure, strong practicality, high efficiency, stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the main view of a vulcanization inner mold drum auxiliary installation and torque test bench.

[0018] Explanation of the serial numbers in the figure: 1-test bench, 2-motor, 3-spindle mounting, 4-vulcanized inner mold drum spindle, 5-vulcanized inner mold drum, 6-torque wrench, 7-connector, 8-rotating shaft, 9-flange, 10-chain, 11-small sprocket, 12-large sprocket, 13-drive shaft. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0020] This embodiment provides a test bench for auxiliary installation and torque testing of a vulcanized inner mold drum, comprising a test bench 1, a spindle mounting member 3, a sprocket drive mechanism, a torque testing mechanism, and a motor 2. The vulcanized inner mold drum 5 includes a vulcanized inner mold drum spindle 4 and a drive shaft 13 that rotates within the vulcanized inner mold drum spindle 4. The vulcanized inner mold drum 5 is disposed above the tabletop of the test bench 1, and the vulcanized inner mold drum spindle 4 is fixed to the tabletop of the test bench. The bottom end of the drive shaft 13 passes through the tabletop of the test bench 1 and is connected to a large sprocket 12.

[0021] The spindle mounting part 3 is detachably connected to the table of the test bench 1 and is detachably connected to the vulcanization inner mold drum spindle 4, and is used to fix and install the vulcanization inner mold drum 5, so as to facilitate the subsequent assembly and testing of the vulcanization inner mold drum 5.

[0022] In this embodiment, the spindle mounting member 3 is a flange. Bolts secure the flange to the test bench 1 and to the vulcanization inner mold drum spindle 4. This embodiment is equipped with multiple flanges of varying sizes, allowing replacement of flanges of varying sizes as needed to accommodate various types of vulcanization inner mold drum equipment.

[0023] The torque testing mechanism includes a torque wrench 6, a connector 7, a rotating shaft 8, and a flange 9. The flange 9 is fixed to the table of the test bench 1. The rotating shaft 8 rotates to the center of the flange 9. The top end of the rotating shaft 8 is connected to the connector 7, and the bottom end of the rotating shaft 8 passes through the table of the test bench 1 and is connected to the sprocket transmission mechanism. By connecting the connector of the torque wrench 6 to the connector 7 and rotating the torque wrench 6, the rotating shaft 8 can be rotated, which can then drive the drive shaft 13 of the vulcanization inner mold drum 5 to rotate through the sprocket transmission mechanism to perform a torque test.

[0024] Motor 2 is fixed to the test bench 1 and located below the test bench 1. Its output shaft faces the main shaft 4 of the vulcanization inner mold drum and is connected to the large sprocket 12 in the sprocket drive mechanism. It is used to drive the drive shaft 13 of the vulcanization inner mold drum 5 to rotate and perform motion testing of the vulcanization inner mold drum 5. In this embodiment, motor 2 is a servo motor, which provides smoother operation.

[0025] The sprocket transmission mechanism includes a large sprocket 12, a small sprocket 11, and a chain 10. The large sprocket 12 is connected to the output shaft of the motor 2, and the large sprocket 12 is connected to the transmission shaft 13 in the vulcanization inner mold drum 5 to drive the transmission shaft 13 to rotate. The small sprocket 11 is connected to the bottom end of the rotating shaft 8, and the two ends of the chain 10 are wound around the large sprocket 12 and the small sprocket 11. The sprocket transmission mechanism can transmit the torque of the torque testing mechanism and perform torque scaling. By controlling the dimensional parameters of the large sprocket 12 and the small sprocket 11, the torque applied to the rotating shaft 8 of the torque testing mechanism when the transmission shaft 13 of the vulcanization inner mold drum 5 is rotated can be within the range of the torque wrench 6.

[0026] After the torque test, the required torque of the vulcanized inner mold drum drive shaft 13 is calculated based on the actual measured torque and the actual scaling factor (the torque of the rotating shaft 8 measured by the torque wrench is 1 / x times the torque applied to the drive shaft 13, where x is the ratio of the outer diameter of the large sprocket to the outer diameter of the small sprocket). Subsequently, a motor 2 with appropriate parameters is selected based on the required torque. The motor 2 is then mounted on the test bench 1. The motor 2 operates, driving the large sprocket 12, which in turn drives the vulcanized inner mold drum 5 via the drive shaft 13, allowing for motion testing of the entire vulcanized inner mold drum 5. The motion testing includes analysis of the vulcanized inner mold drum's motion smoothness, motion interference, molding accuracy, and positioning accuracy. During the motion testing, the torque wrench can be removed since the torque test has already been completed. This test bench facilitates installation and experimental testing, facilitating the study of the equipment's motion characteristics (torque, speed, smoothness, molding accuracy, etc.).

[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution of the present invention within the scope disclosed by the present invention, which falls within the scope of protection of the present invention.

Claims

1. A method for auxiliary installation and torque testing of a vulcanized inner mold drum, using a vulcanized inner mold drum auxiliary installation and torque testing test bench, wherein the vulcanized inner mold drum (5) includes a vulcanized inner mold drum main shaft (4) and a transmission shaft (13) rotating inside the vulcanized inner mold drum main shaft (4), characterized in that: It includes a test bench (1), a motor (2), a sprocket transmission mechanism and a torque testing mechanism, The vulcanization inner mold drum main shaft (4) is detachably connected to the test bench (1); The torque testing mechanism comprises a rotating shaft (8) and a torque wrench (6), and the rotating shaft (8) can be rotated by the torque wrench (6); The sprocket transmission mechanism comprises a large sprocket (12), a small sprocket (11) and a chain (10), wherein the large sprocket (12) is connected to the output end of the motor (2), and the large sprocket (12) is connected to the transmission shaft (13), and the small sprocket (11) is connected to the rotating shaft (8), and both ends of the chain (10) are wound around the large sprocket (12) and the small sprocket (11); It also includes a spindle mounting member (3), and the vulcanized inner mold drum spindle (4) is detachably connected to the test bench (1) through the spindle mounting member (3); the torque testing mechanism also includes a flange (9) and a connector (7) for connecting to the joint of the torque wrench (6), the flange (9) is fixed on the test bench (1), the rotating shaft (8) is located in the flange (9), the connector (7) is connected to one end of the rotating shaft (8), and the small sprocket (11) is connected to the other end of the rotating shaft (8); the large sprocket (12) is detachably connected to the output end of the motor (2), and the large sprocket (12) is detachably connected to the transmission shaft (13), and the small sprocket (11) is detachably connected to the rotating shaft (8); The test method includes: The sprocket transmission mechanism transmits the torque of the torque test mechanism and performs torque scaling. By controlling the size parameters of the large and small sprockets, the torque applied to the rotating shaft of the torque test mechanism when the transmission shaft of the vulcanizing inner mold drum is rotated can be within the range of the torque wrench. After the torque test, the required rotational torque of the rotating shaft of the vulcanized inner mold drum is calculated based on the actual measured torque size and the actual scaling factor. Then, a motor with appropriate parameters can be selected based on the required rotational torque, and the motor is installed on the test bench. The motor works to drive the large sprocket to rotate, thereby driving the vulcanized inner mold drum through the drive shaft to perform a motion test of the entire vulcanized inner mold drum; the actual scaling factor is the ratio of the torque of the rotating shaft measured by the torque wrench to the rotational torque exerted on the drive shaft 1 / x, where x is equal to the ratio of the outer diameter of the large sprocket to the outer diameter of the small sprocket.

2. The method for auxiliary installation and torque testing of a vulcanization inner mold drum according to claim 1, characterized in that: The main shaft mounting member (3) is a flange.

3. The method for auxiliary installation and torque testing of a vulcanization inner mold drum according to claim 2, characterized in that: Equipped with multiple flanges of different sizes.

4. The method for auxiliary installation and torque testing of a vulcanization inner mold drum according to claim 1, characterized in that: The motor (2) is a servo motor.

5. The method for auxiliary installation and torque testing of a vulcanization inner mold drum according to claim 1, characterized in that: The large sprocket (12) and the output end of the motor (2) are connected by a key.

6. The method for auxiliary installation and torque testing of a vulcanization inner mold drum according to claim 1, characterized in that: The large sprocket (12) and the transmission shaft (13) are connected by a key.

7. The method for auxiliary installation and torque testing of a vulcanization inner mold drum according to claim 1, characterized in that: The small sprocket (11) and the rotating shaft (8) are connected by a key.

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