An auxiliary installation tool suitable for different transmission shaft splines

Abstract

The utility model relates to the field of mechanical technology, specifically, an auxiliary installation tool suitable for different transmission shaft splines, including an operating rod and a locking hoop structure, the end of the operating rod is fixed to the locking hoop structure, the locking hoop structure includes a gear ring and a positioning pin, the inner ring of the gear ring is provided with a toothed structure, the toothed structure has the same number of teeth as the outer surface of the gear-type spline and the tooth shape matches, the outer ring of the gear ring is provided with two positioning pins, the two positioning pins match the two positioning pin holes on the end face of the optical axis spline. Compared with the prior art, the utility model directly locks the spline connector through the gear ring or the pin without applying torque to the entire transmission shaft, thereby playing a role of auxiliary installation, avoiding damage to the torque sensor caused by applying excessive torque to the transmission shaft during the installation process. The utility model is suitable for gear-type splines and optical axis splines.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to an auxiliary installation tool suitable for different transmission shaft splines. Background Art

[0002] In the servo motor test system, the drive shaft is used to extend the motor transmission distance and increase the internal operable area of ​​the test system. One end of the drive shaft is connected to the servo motor, which is the power source, and the other end of the drive shaft is connected to the spline connector. In order to measure the torque, a torque sensor is arranged in the middle of the drive shaft.

[0003] During the bench installation process, the servo motor is powered off and does not provide any torque or speed. Due to the presence of the torque sensor, if the spline connector is installed by applying torque to the entire drive shaft, the torque sensor will be damaged due to torque over-range. However, if torque is only applied to one side of the drive shaft, the drive shaft cannot be subjected to force because it rotates.

[0004] Therefore, it is necessary to design an auxiliary installation tool suitable for different drive shaft splines, which can meet the auxiliary installation requirements of the drive shaft spline connector while avoiding damage to the torque sensor. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an auxiliary installation tool suitable for different transmission shaft splines, which can avoid damage to the torque sensor while meeting the auxiliary installation requirements of the transmission shaft spline connector.

[0006] In order to achieve the above-mentioned purpose, the utility model is an auxiliary installation tool suitable for different transmission shaft splines, including an operating rod and a locking hoop structure. The end of the operating rod is fixed to the locking hoop structure. The locking hoop structure includes a gear ring and a positioning pin. The inner ring of the gear ring is provided with a toothed structure. The toothed structure has the same number of teeth as the outer surface of the gear-type spline and the tooth shape matches. The outer ring of the gear ring is provided with two positioning pins, and the two positioning pins match the two positioning pin holes on the end face of the optical axis spline.

[0007] The number of teeth of the gear-type spline is 12, and the center of the gear-type spline and the coupling are locked with a screw.

[0008] The gear ring is sleeved outside the gear type spline, the toothed structure is embedded in the gap between teeth of the gear type spline, and the inner ring size of the gear ring matches the outer diameter of the gear type spline.

[0009] The optical axis type spline is a cylindrical structure, and the end surface of the cylindrical structure is provided with two positioning pin holes and two threaded holes, and screws are fixed to the coupling after passing through the threaded holes.

[0010] The diameter of the cylindrical structure matches the outer diameter of the connecting boss of the coupling.

[0011] The positioning pins are inserted into corresponding positioning pin holes.

[0012] The outer ring of the gear ring is fixed to the end of the operating rod.

[0013] The installation direction of the operating rod is perpendicular to the installation direction of the positioning latch.

[0014] Compared with the prior art, the utility model directly locks the spline connector through the gear ring or the latch without applying torque to the entire transmission shaft, thereby playing a role in auxiliary installation and avoiding excessive torque applied to the transmission shaft during installation to cause damage to the torque sensor. The utility model is suitable for gear-type splines and optical shaft-type splines. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the structure of a gear spline.

[0017] Figure 3 It is a schematic diagram of the utility model cooperating with a gear-type spline.

[0018] Figure 4 This is a schematic diagram of the structure of the optical shaft spline.

[0019] Figure 5 It is a schematic diagram of the cooperation between the utility model and the optical shaft spline. DETAILED DESCRIPTION

[0020] The utility model is now further described with reference to the accompanying drawings.

[0021] See also Figure 1 The utility model is an auxiliary installation tool suitable for different transmission shaft splines, including an operating rod and a locking hoop structure. The end of the operating rod 1 is fixed to the locking hoop structure. The locking hoop structure includes a gear ring 2 and a positioning pin 3. The inner ring of the gear ring 2 is provided with a toothed structure 21. The toothed structure 21 has the same number of teeth as the outer surface of the gear-type spline 4 and the tooth shape matches. The outer ring of the gear ring 2 is provided with two positioning pins 3, and the two positioning pins 3 match the two positioning pin holes 51 on the end face of the optical axis spline 5.

[0022] See also Figure 2 The number of teeth of the gear spline 4 is 12, and the center of the gear spline 4 and the coupling 8 are locked with a screw 71, and the specification of the screw 71 is M8.

[0023] See also Figure 3When installing the gear spline 4, first use screw 71 to pre-tighten the gear spline 4 and the coupling 8. When the pre-tightening force is greater than the static friction force of the transmission shaft 6 and the transmission shaft 6 starts to rotate, use the auxiliary installation tool of the utility model to sleeve the gear ring 2 of the locking hoop structure on the outside of the gear spline 4, and the toothed structure 21 is embedded in the gap between the teeth of the gear spline 4. Since the inner ring size of the gear ring 2 matches the outer diameter of the gear spline 4, the gear ring 2 and the gear spline 4 are matched and locked. The operator fixes the operating lever 1 with one hand to prevent the transmission shaft 6 from rotating, and continues to tighten the screw 71 with the other hand until the installation is completed.

[0024] See also Figure 4 The optical axis spline 5 is a cylindrical structure, and the end surface of the cylindrical structure is provided with two positioning pin holes 51 and two threaded holes 52. The second screw 72 passes through the threaded holes 52 and is fixed to the coupling 8. The specification of the second screw 72 is M4. The diameter of the cylindrical structure matches the outer diameter of the connecting boss of the coupling 8.

[0025] See also Figure 5 When installing the optical axis spline 5, first use two screws 72 to pre-tighten the optical axis spline 5 and the coupling 8. When the pre-tightening force is greater than the static friction force of the transmission shaft 6 and the transmission shaft 6 starts to rotate, use the auxiliary installation tool of the utility model to insert the locating pin 3 of the locking hoop structure into the corresponding locating pin hole 51. The locating pin 3 is matched and locked with the locating pin hole 51 of the optical axis spline 5. The operator fixes the operating lever 1 with one hand to prevent the transmission shaft 6 from rotating, and continues to tighten the two screws 72 with the other hand until the installation is completed.

[0026] The outer ring of the gear ring 2 is fixed to the end of the operating rod 1. The installation direction of the operating rod 1 is perpendicular to the installation direction of the positioning pin 3, so that the operator can apply force and improve the convenience of use.

[0027] The utility model directly locks the spline connector through the gear ring or the latch without applying torque to the entire transmission shaft, thereby playing the role of auxiliary installation and avoiding excessive torque being applied to the transmission shaft during the installation process, causing damage to components on the transmission shaft such as the torque sensor. The utility model is suitable for gear-type transmission shaft splines and optical shaft-type transmission shaft splines.

Claims

1. An auxiliary installation tool suitable for different transmission shaft splines, comprising an operating rod and a locking hoop structure, characterized in that: The end of the operating rod (1) is fixed to the locking hoop structure, which comprises a gear ring (2) and a positioning pin (3). The inner ring of the gear ring (2) is provided with a toothed structure (21), the toothed structure (21) has the same number of teeth as the outer surface of the gear-type spline (4) and the toothed structure (21) matches the outer surface of the gear-type spline (4), and the outer ring of the gear ring (2) is provided with two positioning pins (3), which match the two positioning pins (3) with the two positioning pin holes (51) on the end surface of the optical axis spline (5).

2. The auxiliary installation tool suitable for different transmission shaft splines according to claim 1, characterized in that: The number of teeth of the gear-type spline (4) is 12, and the center of the gear-type spline (4) and the coupling (8) are locked by a screw 1 (71).

3. The auxiliary installation tool suitable for different transmission shaft splines according to claim 1, characterized in that: The gear ring (2) is sleeved outside the gear-type spline (4), the toothed structure (21) is embedded in the gap between the teeth of the gear-type spline (4), and the inner ring size of the gear ring (2) matches the outer diameter of the gear-type spline (4).

4. The auxiliary installation tool suitable for different transmission shaft splines according to claim 1, characterized in that: The optical axis type spline (5) is a cylindrical structure, and the end surface of the cylindrical structure is provided with two positioning pin holes (51) and two threaded holes (52). The second screw (72) passes through the threaded holes (52) and is fixed to the coupling (8).

5. The auxiliary installation tool suitable for different transmission shaft splines according to claim 4, characterized in that: The diameter of the cylindrical structure matches the outer diameter of the connecting boss of the coupling (8).

6. The auxiliary installation tool suitable for different transmission shaft splines according to claim 1, characterized in that: The positioning pin (3) is inserted into the corresponding positioning pin hole (51).

7. The auxiliary installation tool suitable for different transmission shaft splines according to claim 1, characterized in that: The outer ring of the gear ring (2) is fixed to the end of the operating rod (1).

8. The auxiliary installation tool suitable for different transmission shaft splines according to claim 7, characterized in that: The installation direction of the operating rod (1) is perpendicular to the installation direction of the positioning latch (3).

Images