Static torque loading system of transmission device

Abstract

The invention discloses a static torque loading system for a transmission device, and belongs to torque loading equipment. In order to realize a transmission equipment bearing capacity limit test, the device comprises a supporting base, a force application shaft, a force arm rod and two torsion loading mechanisms, the force application shaft is horizontally installed on the supporting base and can rotate, one end of the force application shaft is connected with a tested transmission shaft, the other end of the force application shaft is connected with the center position of the force arm rod, and the force arm rod is horizontally arranged. The two torsion loading mechanisms are arranged on the two sides of the force arm rod respectively, and each torsion loading mechanism is hinged to the end of the force arm rod. The device is mainly used for applying load to the transmission bearing.

Description

Technical Field

[0001] The invention belongs to torque loading equipment, and in particular relates to a static torque loading system of a transmission device. Background Art

[0002] The ultimate bearing capacity test of transmission equipment is one of the key test technologies in the field of high-speed transmission, and is widely used in many transmission fields such as aviation, navigation, metallurgy, fluid transportation and oil production. At present, the demand for the ultimate bearing capacity of high-speed transmission equipment is getting higher and higher; its performance is related to the safety and reliability of equipment operation, and is an important aspect of the comprehensive performance assessment of equipment. Summary of the invention

[0003] In view of this, the present invention provides a transmission device static torque loading system, which utilizes two torque loading mechanisms, a lever arm and a force application shaft to transmit torque to the transmission device under test to test the maximum torque of the transmission device.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] A static torque loading system for a transmission device comprises a support base, a force application shaft, a lever arm and a torque loading mechanism. The force application shaft is horizontally installed on the support base and can rotate. One end of the force application shaft is connected to a transmission shaft to be measured, and the other end is connected to the center position of the lever arm. The lever arm is horizontally arranged. Two torque loading mechanisms are provided. The two torque loading mechanisms are respectively arranged on both sides of the lever arm, and each torque loading mechanism is hinged to the end of the lever arm.

[0006] Preferably, the force-applying shaft comprises a variable interface section and a torque transmission section, the variable interface section is connected to the transmission shaft to be measured, the torque transmission section is connected to the lever arm, and the variable interface section and the torque transmission section are meshingly connected to transmit torque.

[0007] Preferably, the support base includes a bearing seat, a synchronous lifter and a bottom bracket. There are four synchronous lifters, which are evenly installed on the bottom bracket. The bearing seat is installed on the four synchronous lifters, and the force shaft is installed in the bearing seat through a bearing.

[0008] Preferably, the synchronous lifter is an electric cylinder.

[0009] Preferably, the support base also includes a bearing seat bracket and an auxiliary support screw. The bearing seat bracket is installed between the synchronous lifter and the bearing seat and is used to support the bearing seat. The upper surface of the bottom bracket is provided with two symmetrically arranged auxiliary support plates. The two auxiliary support plates are located on both sides of the synchronous lifter. The bearing seat bracket and the auxiliary support plates are connected via an auxiliary support screw to increase the stability of the force shaft during loading.

[0010] Preferably, the torque loading mechanism includes a hinge rod, a force sensor, a force electric cylinder and a loading base; the force electric cylinder is installed on the loading base, one end of the hinge rod is hinged to the end of the force arm rod, and the other end is hinged to the power output end of the force electric cylinder, and the force sensor is installed on the hinge rod to measure the torque applied to the force arm rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The force shaft adopts a segmented design, including a variable interface section and a torque transmission section. The variable interface section is used as a coupling, and the torque transmission section is used to transmit torque. By replacing the variable interface section to connect the torque transmission section with different transmission shafts, the replacement of the entire force shaft is avoided, which saves costs and reduces the assembly process.

[0013] 2. In addition to supporting the force-applying shaft, the bearing seat can also offset the vertical force caused by torque loading.

[0014] 3. The bearing seat bracket combined with the auxiliary support plate and the auxiliary support screw can stabilize the bearing seat and will not generate other additional forces on the torsion structure.

[0015] 4. The synchronous lifter can change the center height of the bearing seat to a certain extent, and is suitable for the tested transmission structures with different center heights.

[0016] 5. The force sensor in the torque loading mechanism serves as feedback for the entire control. The accuracy of the force sensor is 0.05%, which can achieve precise control of the torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are incorporated as part of this application and are used to provide a further understanding of the present invention.

[0018] Figure 1 It is a side view of a static torque loading system of a transmission device of the present invention.

[0019] Figure 2 It is a front view of a static torque loading system of a transmission device of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the force-applying shaft.

[0021] Explanation of the accompanying drawings: support base 1, bearing seat 1-1, synchronous lifter 1-2, bottom bracket 1-3, bearing seat bracket 1-4, auxiliary support screw 1-5, auxiliary support plate 1-6, force shaft 2, variable interface section 2-1, torque transmission section 2-2, force arm rod 3, torque loading mechanism 4, hinge rod 4-1, force sensor 4-2, force electric cylinder 4-3, loading base 4-4. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with specific embodiments.

[0023] See also Figure 1 A static torque loading system of a transmission device in this embodiment includes a support base 1, a force shaft 2, a lever arm 3 and a torque loading mechanism 4. The force shaft 2 is horizontally installed on the support base 1 and can rotate. One end of the force shaft 2 is connected to the measured transmission shaft, and the other end is connected to the center position of the lever arm 3. The lever arm 3 is horizontally arranged and perpendicular to the force shaft 2. Two torque loading mechanisms 4 are provided. The two torque loading mechanisms 4 are respectively arranged on both sides of the lever arm 3, and each torque loading mechanism 4 is hinged to the end of the lever arm 3.

[0024] The two torque loading mechanisms 4 of this embodiment apply opposite forces to the lever arm 3. Both ends of the lever arm 3 are subjected to forces and generate rotational torque. The lever arm 3 transmits this torque to the force-applying shaft 2, which then transmits it to the transmission shaft under test in a stationary state. When the forces applied by the two torque loading mechanisms 4 gradually increase, the torque borne by the transmission device under test gradually increases, so the ultimate static torque of the transmission shaft under test can be tested.

[0025] like Figure 3 As shown, the force shaft 2 of this embodiment includes a variable interface section 2-1 and a torque transmission section 2-2. The variable interface section 2-1 is connected to the transmission shaft to be tested, and the torque transmission section 2-2 is connected to the lever arm 3. The variable interface section 2-1 is provided with engaging teeth at one end facing the torque transmission section 2-2, and the torque transmission section 2-2 is also provided with engaging teeth at one end facing the variable interface section 2-1. The variable interface section 2-1 and the torque transmission section 2-2 are connected through the cooperation of the engaging teeth and transmit torque. When facing different transmission shafts to be tested, there may be a phenomenon of interface mismatch between the transmission shaft and the force shaft 2, so the force shaft 2 is designed to be separated into two ends, one section is used as a coupling, and the other section is used to transmit torque. By replacing the variable interface section 2-1, the torque transmission section 2-2 is connected to different transmission shafts, avoiding the replacement of the entire force shaft 2, saving costs and reducing the assembly process.

[0026] like Figure 1 and Figure 2As shown, the support base 1 of this embodiment includes a bearing seat 1-1, a synchronous lifter 1-2 and a bottom bracket 1-3. Four synchronous lifters 1-2 are provided, and the four synchronous lifters 1-2 are evenly installed on the bottom bracket 1-3. The bearing seat 1-1 is installed on the four synchronous lifters 1-2, and the force shaft 2 is installed in the bearing seat 1-1 through a bearing to achieve rotation. The synchronous lifter 1-2 is an electric cylinder. Since different measured transmission shafts have different heights, when facing different measured transmission shafts, it is necessary to adjust the height of the force shaft 2. The telescopic rods of the four synchronous lifters 1-2 are synchronously extended or retracted, and support the bearing seat 1-1 to move up or down to achieve the adjustment of the height of the force shaft 2, thereby increasing the scope of application of the static torque loading system. In addition to supporting the force shaft 2, the bearing seat 1-1 of this embodiment can also offset the vertical force caused by torque loading to ensure the measurement accuracy of the measured transmission shaft.

[0027] Since the synchronous lifter 1-2 needs to support components such as the force-applying shaft 2 and the bearing seat 1-1, the force-applying shaft 2 may vibrate under force and cause the synchronous lifter 1-2 to be unable to achieve stable support, the support base 1 of this embodiment also includes a bearing seat bracket 1-4 and an auxiliary support screw 1-5, such as Figure 1 As shown, the bearing seat bracket 1-4 is installed between the synchronous lifter 1-2 and the bearing seat 1-1, and is used to support the bearing seat 1-1; the upper surface of the bottom bracket 1-3 is provided with two symmetrically arranged auxiliary support plates 1-6, and the two auxiliary support plates 1-6 are located on both sides of the synchronous lifter 1-2. The bearing seat bracket 1-4 and the auxiliary support plates 1-6 are connected via an auxiliary support screw 1-5 to increase the stability of the force shaft 2 during loading. The bearing seat 1-1 and the force shaft 2 of this embodiment are supported by the auxiliary support screw 1-5 and the auxiliary support plate 1-6, which can reduce the pressure of the bearing seat 1-1 and the force shaft 2 on the synchronous lifter 1-2 and ensure the stable support of the synchronous lifter 1-2. At the same time, the bearing seat bracket 1-4 combined with the auxiliary support plate 1-6 and the auxiliary support screw 1-5 can stabilize the bearing seat 1-1 without generating other additional forces on the torsion structure.

[0028] like Figure 1 and Figure 2As shown, the torque loading mechanism 4 of the present embodiment includes a hinge rod 4-1, a force sensor 4-2, a force cylinder 4-3 and a loading base 4-4; the force cylinder 4-3 is installed on the loading base 4-4, one end of the hinge rod 4-1 is hinged to the end of the force arm 3, and the other end is hinged to the power output end of the force cylinder 4-3, and the force sensor 4-2 is installed on the hinge rod 4-1 to measure the torque applied to the force arm 3. When the load is applied, the telescopic rod of the force cylinder 4-3 in the torque loading mechanism 4 on one side is extended to generate a thrust on one end of the force arm 3, and the telescopic rod of the force cylinder 4-3 in the torque loading mechanism on the other side is retracted to generate a pulling force on the other end of the force arm 3, so that the force arm 3 is subjected to a rotational torque, and the thrust or pulling force applied by the force cylinder 4-3 to the force arm 3 is measured via the force sensor 4-2.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A transmission device static torque loading system, characterized in that: It includes a supporting base, a force-applying shaft, a lever arm and a torque loading mechanism. The force-applying shaft is horizontally installed on the supporting base and can rotate. One end of the force-applying shaft is connected to the transmission shaft to be measured, and the other end is connected to the center position of the lever arm. The lever arm is horizontally arranged. Two torque loading mechanisms are provided. The two torque loading mechanisms are respectively arranged on both sides of the lever arm, and each torque loading mechanism is hinged to the end of the lever arm.

2. A transmission device static torque loading system according to claim 1, characterized in that: The force-applying shaft comprises a variable interface section and a torque transmission section, the variable interface section is connected to the measured transmission shaft, the torque transmission section is connected to the force arm, and the variable interface section and the torque transmission section are meshedly connected to transmit torque.

3. A transmission device static torque loading system according to claim 1, characterized in that: The support base includes a bearing seat, a synchronous lifter and a bottom bracket. There are four synchronous lifters, which are evenly installed on the bottom bracket. The bearing seat is installed on the four synchronous lifters, and the force shaft is installed in the bearing seat through a bearing.

4. A transmission device static torque loading system according to claim 3, characterized in that: The synchronous lifter is an electric cylinder.

5. A transmission device static torque loading system according to claim 3, characterized in that: The support base also includes a bearing seat bracket and an auxiliary support screw. The bearing seat bracket is installed between the synchronous lifter and the bearing seat and is used to support the bearing seat. The upper surface of the bottom bracket is provided with two symmetrically arranged auxiliary support plates. The two auxiliary support plates are located on both sides of the synchronous lifter. The bearing seat bracket and the auxiliary support plates are connected via an auxiliary support screw to increase the stability of the force shaft during loading.

6. A transmission device static torque loading system according to claim 1, characterized in that: The torque loading mechanism includes a hinge rod, a force sensor, a force-applying electric cylinder and a loading base; the force-applying electric cylinder is installed on the loading base, one end of the hinge rod is hinged to the end of the force arm rod, and the other end is hinged to the power output end of the force-applying electric cylinder, and the force sensor is installed on the hinge rod to measure the torque applied to the force arm rod.

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