Press fitting tool for shaft-mounted speed reducer

Abstract

The invention relates to the technical field of mechanical transmission equipment installation tools, in particular to a shaft-mounted speed reducer press-fitting tool which comprises an installation screw. The rotary inner supporting mechanism is in threaded connection with the mounting screw rod, is used for internally supporting a mounting shaft hole of the shaft-mounted speed reducer, and comprises a spline telescopic pipe, an inner supporting plate, a fixed disc and a locking block; and the detection driving mechanism is rotationally connected to the left end of the spline telescopic pipe in a sleeving mode, has the functions of power transmission, coaxiality checking and press fitting driving and comprises a driving sleeve, a ring sleeve, an arc-shaped threaded sheet, a U-shaped locking frame, a power plate and a checking rod. According to the press-fitting tool for the shaft-mounted speed reducer, self-adaptive inner supporting positioning is carried out on the mounting shaft hole of the speed reducer through the three sets of inner supporting plates, the end face flush degree is synchronously detected in combination with the three verification rods, the coaxiality of the shaft hole and a power input shaft can be judged in real time, part damage caused by deviation is avoided, and the assembly precision is remarkably improved.

Description

Technical Field

[0001] This invention belongs to the technical field of mechanical transmission equipment installation tools, specifically relating to a press-fitting auxiliary tool for shaft-mounted reducers, which is particularly suitable for assembly scenarios where high-precision coaxiality is required between reducers and the power input shaft of working machines. Background Technology

[0002] As a key component in industrial transmission systems, the assembly accuracy of shaft-mounted speed reducers with the power input shaft of the driven machine directly affects the operational stability and service life of the equipment. In existing technologies, speed reducer press-fitting often relies on manual alignment or simple tooling, which presents the following problems:

[0003] 1. Coaxiality is difficult to guarantee: In the traditional installation method, the coaxiality of the reducer mounting shaft hole and the working machine power input shaft is judged entirely by experience. Due to deviation, the shaft system is easily subjected to uneven force during the press-fitting process, which causes wear of the reducer internal gears and input shaft splines, and may even cause abnormal noise and excessive vibration in the equipment.

[0004] 2. Cumbersome operation process: The position of the reducer needs to be adjusted and repeatedly checked, which is labor-intensive and inefficient. Especially in the installation of large equipment, multiple people are often needed to complete the hoisting, alignment and pressing steps.

[0005] 3. Lack of real-time verification mechanism: During the pressing process, it is impossible to detect whether the coaxiality meets the standard in real time. If there is a deviation and force is continued, it will cause the reducer housing to deform or the input shaft to bend, increasing maintenance costs. Summary of the Invention

[0006] The purpose of this invention is to provide a shaft-mounted reducer press-fitting tool to solve the problem mentioned in the background art of difficulty in ensuring coaxiality of existing tools. To achieve the above objective, this invention provides the following technical solution: a shaft-mounted reducer press-fitting tool, comprising: a mounting screw;

[0007] A rotating inner support mechanism, threadedly connected to the mounting screw, is used to support the mounting shaft hole of the shaft-mounted reducer, and includes a spline telescopic tube, an inner support plate, a fixed disc, and a locking block;

[0008] The detection drive mechanism is rotatably sleeved on the left end of the spline telescopic tube, and has the functions of power transmission, coaxiality verification and press-fitting drive. It includes a drive sleeve, a ring sleeve, an arc threaded plate, a U-shaped locking frame, a power plate and a verification rod.

[0009] The drive sleeve is fitted onto the mounting screw and its right end is fixedly connected to the ring sleeve. A guide groove is provided on the inner wall of the drive sleeve. An arc-shaped threaded plate is slidably disposed in the guide groove and its inner surface is provided with a thread that matches the mounting screw.

[0010] The U-shaped locking frame is fixed to the side of the arc-shaped threaded plate facing the spline telescopic tube. The U-shaped locking frame and the locking block can engage and abut to transmit rotational power to the spline telescopic tube. The middle part of the power plate is hinged to the inner wall of the guide groove. One end of the plate is in a limiting sliding fit with the U-shaped locking frame, and the other end is hinged to the calibration rod through the hinge sleeve.

[0011] The calibration rods are horizontally inserted through the drive sleeve and the ring sleeve, and there are three of them. They are used to check the coaxiality of the mounting shaft hole of the shaft-mounted reducer and the power input shaft of the working machine. When the calibration rods move, the arc-shaped threaded plate can be driven by the power plate to move radially along the guide groove, so as to realize the engagement or disengagement of the arc-shaped threaded plate with the mounting screw.

[0012] Preferably, the inner tube of the spline telescopic tube is threadedly connected to the mounting screw, and its inner end is hinged with a deflection plate through a rotating tube;

[0013] When the spline telescopic tube rotates, it can move axially along the mounting screw, pushing the deflection plate to drive the inner support plate to expand radially along the fixed plate groove. The inner support plate is hinged to the end of the deflection plate away from the spline telescopic tube. The fixed plate is fixedly sleeved on the mounting screw to limit the movement trajectory of the inner support plate.

[0014] The locking block is fixed in a ring shape to the left end of the spline telescopic tube and is used to transmit rotational power.

[0015] Preferably, there are six deflection plates, arranged in pairs in parallel. The deflection plates in the same group are hinged to an inner support plate to ensure that the inner support plate expands smoothly. The outer arc surface of the inner support plate is provided with a wear-resistant metal sheet to enhance the wear resistance of the inner support and avoid scratching the inner wall of the mounting shaft hole.

[0016] Preferably, the ring has a receiving groove, and a spring telescopic rod is hinged in the receiving groove. The end of the spring telescopic rod away from the receiving groove is hinged to the calibration rod to provide elastic assistance and restoring force for the movement of the calibration rod.

[0017] Preferably, the section of the calibration rod located in the receiving groove is damped and rotatably connected to a rotating sleeve, and the outer wall of the ring sleeve is rotatably connected to a notch blocking sleeve. The notch blocking sleeve is located on the left side of the rotating sleeve. By aligning or misaligning the notch with the ring sleeve, the movement of the calibration rod is controlled to lock or unlock the calibration state.

[0018] Preferably, a rotating retaining ring is fixedly connected to the left side of the notch blocking sleeve. The rotating retaining ring is rotatably connected to the end face of the drive sleeve. A retaining block is provided on the inner wall of the rotating retaining ring. The calibration rod has a locking groove that matches the retaining block, which is used to lock the position of the calibration rod and ensure that the arc-shaped threaded piece is stably attached to the installation screw.

[0019] Preferably, a wedge block is fixedly connected to the section of the receiving groove where the verification rod is located, and a spring telescopic plate is fixedly connected to the receiving groove. The end of the spring telescopic plate facing the wedge block is a wedge-shaped end, which is used to assist the verification rod to continue moving after the spring telescopic rod deflects to a vertical state.

[0020] Preferably, a wear-resistant sleeve is installed at the right end of the ring sleeve, which is used to directly contact and push the shaft-mounted reducer during press fitting. The wear-resistant sleeve has an arc groove for the calibration rod to pass through.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] This invention ensures high-precision coaxiality: By using three sets of internal support plates to adaptively support and position the reducer mounting shaft hole, and combining this with three calibration rods to simultaneously detect the end face flatness, the coaxiality of the shaft hole and the power input shaft can be judged in real time, avoiding component damage caused by deviation and significantly improving assembly accuracy.

[0023] This invention is simple and efficient to operate: It integrates internal support positioning, coaxiality verification, and press-fitting drive functions into one unit, allowing a single person to complete the entire process from positioning to press-fitting without repeated adjustments, thus greatly shortening the installation time.

[0024] This invention features adaptive adjustment and protection: by utilizing the linkage design of components such as spline telescopic tubes and arc-shaped threaded plates, the expansion / contraction of the inner support plate is adaptively adjusted to accommodate mounting shaft holes of different diameters; at the same time, through the separation / engagement mechanism of the U-shaped locking frame and the locking block, pressing is prohibited when the coaxiality does not meet the standard, thus forming mechanical protection.

[0025] This invention enhances safety and reliability by employing a rotating snap ring lock and a spring telescopic rod to ensure stability during the pressing process, reducing human error, minimizing the risk of equipment damage, and extending the service life of the reducer and the working machine. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a partial three-dimensional structural diagram of the present invention;

[0028] Figure 3 This is a three-dimensional structural diagram of the drive sleeve and ring sleeve of the present invention;

[0029] Figure 4 This is a three-dimensional cross-sectional view of the drive sleeve and ring sleeve of the present invention;

[0030] Figure 5 This is a three-dimensional structural diagram of the receiving groove and the spring telescopic rod of the present invention;

[0031] Figure 6 This is a three-dimensional cross-sectional view of the U-shaped locking frame and locking block in the locked state of the present invention;

[0032] Figure 7This is a three-dimensional structural diagram of the U-shaped locking frame and the locking block in the translated and separated state of the present invention;

[0033] Figure 8 This is a three-dimensional structural diagram of the spline telescopic tube and locking block of the present invention;

[0034] Figure 9 This is a three-dimensional cross-sectional view of the drive sleeve of the present invention;

[0035] Figure 10 This is a three-dimensional structural diagram of the rotating retainer of the present invention.

[0036] In the diagram: 1. Mounting screw; 2. Spline telescopic tube; 21. Deflection plate; 22. Inner support plate; 23. Fixed plate; 24. Locking block; 25. Rotary tube; 3. Drive sleeve; 31. Guide groove; 32. Arc-shaped threaded plate; 33. U-shaped locking frame; 34. Power plate; 35. Hinge sleeve; 36. Calibration rod; 37. Rotating sleeve; 38. Locking groove; 39. Wedge block; 4. Ring sleeve; 41. Receiving groove; 42. Spring telescopic rod; 43. Rotating clasp; 44. Spring telescopic plate; 45. Notch blocking sleeve; 5. Hexagonal drive block; 6. Wear-resistant sleeve; 7. Working machine power input shaft. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figures 1 to 10 The present invention provides a technical solution: a shaft-mounted reducer press-fitting tool, including a mounting screw 1, a rotating inner support mechanism threadedly connected to the mounting screw 1, the rotating inner support mechanism including a spline telescopic tube 2, the inner tube of the spline telescopic tube 2 being threadedly connected to the mounting screw 1, a rotating tube 25 being rotatably connected to the end of the inner tube of the spline telescopic tube 2, six deflection plates 21 being hinged to the outer wall of the rotating tube 25, the six deflection plates 21 being arranged in pairs in parallel, an inner support plate 22 being hinged to the end of the two parallel deflection plates 21 in the same group away from the inner tube of the spline telescopic tube 2, a wear-resistant metal sheet being provided on the outer arc surface of the inner support plate 22, and the end of the inner support plate 22 being slidably disposed in a groove opened on a fixed plate 23, and the fixed plate 23 being fixedly sleeved on the mounting screw 1;

[0039] The left end of the spline telescopic tube 2 is fixedly connected to a locking block 24 in a ring shape.

[0040] The left end of the spline telescopic tube 2 is rotatably sleeved with a detection drive mechanism. The detection drive mechanism includes a drive sleeve 3 rotatably sleeved on the spline telescopic tube 2. The right end of the drive sleeve 3 is fixedly connected with a ring sleeve 4. The drive sleeve 3 is sleeved on the mounting screw 1. The inner wall of the drive sleeve 3 is provided with a guide groove 31. An arc-shaped threaded piece 32 is slidably arranged in the guide groove 31. The inner surface of the arc-shaped threaded piece 32 has a thread that matches the thread on the outer wall of the mounting screw 1. A U-shaped locking frame 33 is fixedly connected to the side of the arc-shaped threaded piece 32 facing the spline telescopic tube 2. The inner wall of the U-shaped locking frame 33 abuts against the locking block 24. By engaging the U-shaped locking frame 33 with the locking block 24, it is ensured that the rotation of the drive sleeve 3 can drive the spline telescopic tube 2 to rotate, causing the inner support plate 22 to unfold in a flower shape.

[0041] The outer arc surface of the U-shaped locking frame 33 is equipped with two parallel power plates 34 for limiting sliding. The middle part of the power plate 34 is hinged to the inner wall of the guide groove 31. The power plate 34 is a force-saving lever. The upper end of the power plate 34 is fitted with a hinge sleeve 35. A verification rod 36 is hinged inside the hinge sleeve 35. There are three verification rods 36. All three verification rods 36 horizontally penetrate the drive sleeve 3 and the ring sleeve 4.

[0042] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, a receiving groove 41 is provided on the ring 4, and a spring telescopic rod 42 is hinged on the receiving groove 41. One end of the spring telescopic rod 42 is hinged to the calibration rod 36.

[0043] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the verification rod 36 is located in the receiving groove 41 area and is rotatably connected to the rotating sleeve 37. The damping design is used to prevent the rotating sleeve 37 from rotating arbitrarily and to ensure stable contact with the notch blocking sleeve 45. The outer wall of the ring sleeve 4 is rotatably connected to the notch blocking sleeve 45, which blocks the horizontal movement distance of the rotating sleeve 37. The notch blocking sleeve 45 is on the left side of the rotating sleeve 37. When the notch of the notch blocking sleeve 45 is aligned with the ring sleeve 4, it does not block the movement of the verification rod 36; otherwise, it does block it.

[0044] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10As shown, a rotating retaining ring 43 is fixedly connected to the left side of the notch blocking sleeve 45, and the rotating retaining ring 43 is rotatably connected to the end face of the drive sleeve 3. The inner wall of the rotating retaining ring 43 has a retaining block, and the calibration rod 36 is provided with a locking groove 38 for locking the rotating retaining ring 43. The locking groove 38 on the calibration rod 36 is locked by the retaining block on the inner side of the rotating retaining ring 43, so as to ensure that the arc-shaped threaded piece 32 at the end of the power plate 34 on the calibration rod 36 is stably abutting against the mounting screw 1.

[0045] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the verification rod 36 is fixedly connected to the wedge block 39 in the section of the receiving groove 41, and the wedge block 39 abuts against the right side of the inner wall of the receiving groove 41.

[0046] A spring telescopic plate 44 is fixedly connected to the receiving groove 41, with the end of the spring telescopic plate 44 facing the wedge block 39 having a wedge-shaped end. When the spring telescopic rod 42 on the calibration rod 36 deflects to be perpendicular to the calibration rod 36, and continues to move to the left, the wedge-shaped end of the spring telescopic plate 44 assists the calibration rod 36 to move to the left.

[0047] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, a hexagonal drive block 5 is fixedly connected to the left end of the drive sleeve 3, which facilitates the rotation of the drive sleeve 3.

[0048] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, a wear-resistant sleeve 6 is installed on the right end of the ring 4, and an arc groove is opened on the wear-resistant sleeve 6 to accommodate the calibration rod 36 passing through.

[0049] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, the right end of the mounting screw 1 is threadedly connected to the power input shaft 7 of the working machine.

[0050] The method of use and advantages of this invention: The working process of this shaft-mounted reducer press-fitting tool is as follows:

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 As shown, in use, the shaft-mounted reducer is fitted onto the mounting screw 1, and the mounting screw 1 is then threaded onto one end of the power input shaft 7 of the working machine. The rotating drive sleeve 3 drives the arc-shaped threaded plate 32 in the guide groove 31 to rotate. The U-shaped locking frame 33 on the arc-shaped threaded plate 32 drives the locking block 24, causing the spline telescopic tube 2 to rotate on the mounting screw 1. This causes the inner tube of the spline telescopic tube 2 to move to the right, pushing the deflection plate 21 to deflect and squeezing the three inner support plates 22 to expand and expand, thus providing internal support to the inner wall of the mounting shaft hole of the shaft-mounted reducer and ensuring the coaxiality of the mounting shaft hole of the shaft-mounted reducer.

[0052] If one end of the verification rod 36 is not flush with the end face of the mounting shaft hole of the shaft-mounted reducer, and the verification rod 36 is pushed against the end face of the mounting shaft hole of the shaft-mounted reducer by pushing the ring sleeve 4 to the right, then at least one of the three verification rods 36 cannot drive the spring telescopic rod 42 to deflect and move the wedge block 39 on it to the left side of the wedge end of the spring telescopic plate 44 when it is against the end face of the mounting shaft hole of the shaft-mounted reducer. At this time, the U-shaped locking frame 33 corresponding to the verification rod 36 is not completely separated from the locking block 24, and the locking groove 38 on the verification rod 36 is not completely exposed.

[0053] When the user rotates the rotating retaining ring 43, the corresponding retaining block inside cannot engage in the locking groove 38. This indicates that when the three inner support plates 22 expand to support the mounting shaft hole of the shaft-mounted reducer, the central axis of the three inner support plates 22 is not coaxial with the central axis of the mounting shaft hole of the shaft-mounted reducer. Therefore, it is necessary to unlock the three inner support plates 22 from supporting the mounting shaft hole of the shaft-mounted reducer, check whether the outer wall of the inner support plates 22 is worn, and repeat the above operation to support the mounting shaft hole of the shaft-mounted reducer again. This is to avoid the shaft-mounted reducer being squeezed and damaged when the central axis of the mounting shaft hole of the shaft-mounted reducer is not coaxial with the central axis of the power input shaft 7 of the working machine.

[0054] If one end of the verification rod 36 is flush with the end face of the mounting shaft hole of the shaft-mounted reducer, pushing the ring sleeve 4 to the right will cause the verification rod 36 to abut against the end face of the mounting shaft hole of the shaft-mounted reducer. At this time, the three verification rods 36 will move to the left inside the ring sleeve 4, and drive the spring telescopic rod 42 to deflect and compress. When the spring telescopic rod 42 deflects to the vertical and continues to deflect to the left, the spring telescopic rod 42 extends to help the verification rod 36 move to the left. At this time, the locking groove 38 is exposed and the rotating sleeve 37 abuts against the notch blocking sleeve 45. This indicates that the center axis of the mounting shaft hole of the shaft-mounted reducer is coaxial with the center axis of the power input shaft 7 of the working machine, and subsequent pressing operations can be carried out.

[0055] When the verification rod 36 moves to the left, it pushes the power plate 34 on the hinge sleeve 35 to deflect, squeezing the arc-shaped threaded piece 32 to move radially inward along the guide groove 31 and abut against the thread on the outer wall of the mounting screw 1. At the same time, the U-shaped locking frame 33 on the arc-shaped threaded piece 32 moves radially and separates from the locking block 24. Then, the rotating snap ring 43 is rotated to make its locking block engage in the locking groove 38, thus locking the verification rod 36.

[0056] Next, the rotating hexagonal drive block 5 drives the drive sleeve 3 and the ring sleeve 4 to rotate. Through the arc-shaped threaded plate 32, the ring sleeve 4 rotates and moves to the right on the mounting screw 1, causing the wear-resistant sleeve plate 6 at the right end of the ring sleeve 4 to press the shaft-mounted reducer supported by the inner support plate 22 to move to the right, pushing the shaft-mounted reducer out from the outside of the three inner support plates 22 and pressing it onto the power input shaft 7 of the working machine.

[0057] After the shaft-mounted reducer is press-fitted onto the power input shaft 7 of the working machine, the rotating snap ring 43 is rotated to release the lock on the locking groove 38. At the same time, the notch of the notch blocking sleeve 45 is aligned with the rotating sleeve 37. At this time, the calibration rod 36 continues to move to the left under the thrust of the spring telescopic rod 42, causing the arc-shaped threaded plate 32 to move radially outward in the guide groove 31 and separate from the surface of the mounting screw 1. At this time, the U-shaped locking frame 33 on the arc-shaped threaded plate 32 and the locking block 24 abut against each other and lock, completing the power connection between the drive sleeve 3 and the spline telescopic tube 2.

[0058] At this time, the reverse rotation drive sleeve 3 and ring sleeve 4 drive the spline telescopic tube 2 to rotate in the opposite direction, causing the three inner support plates 22 to retract in the groove of the fixed plate 23. Then, the mounting screw 1 is removed from the working machine power input shaft 7. Subsequently, the shaft-mounted reducer is pushed by the external hydraulic cylinder to accurately position and press it into the designated installation area of ​​the working machine power input shaft 7.

[0059] Then push the calibration rod 36 to the right, causing the calibration rod 36 to drive the spring telescopic rod 42 to deflect and reset, and continue to rotate the notch blocking sleeve 45 to ensure that when the tool is used again, the notch blocking sleeve 45 can block the rotating sleeve 37 on the calibration rod 36 again.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shaft-mounted reducer press-fitting tool, comprising: Mounting screw (1); The rotating inner support mechanism is threadedly connected to the mounting screw (1) and is used to support the mounting shaft hole of the shaft-mounted reducer. It includes a spline telescopic tube (2), an inner support plate (22), a fixed plate (23), and a locking block (24). The feature is that the detection drive mechanism is rotatably sleeved on the left end of the spline telescopic tube (2), and has the functions of power transmission, coaxiality verification and press-fitting drive. It includes a drive sleeve (3), a ring sleeve (4), an arc-shaped threaded plate (32), a U-shaped locking frame (33), a power plate (34) and a verification rod (36). The drive sleeve (3) is fitted onto the mounting screw (1) and its right end is fixedly connected to the ring sleeve (4). The inner wall of the drive sleeve (3) is provided with a guide groove (31). The arc-shaped threaded plate (32) is slidably disposed in the guide groove (31) and its inner surface is provided with a thread that matches the mounting screw (1). The U-shaped locking frame (33) is fixed to the side of the arc-shaped threaded plate (32) facing the spline telescopic tube (2). The U-shaped locking frame (33) and the locking block (24) can engage and abut to transmit rotational power to the spline telescopic tube (2). The middle part of the power plate (34) is hinged to the inner wall of the guide groove (31). One end of the plate is limited and slidably engaged with the U-shaped locking frame (33), and the other end is hinged to the calibration rod (36) through the hinge sleeve (35). The verification rod (36) passes horizontally through the drive sleeve (3) and the ring sleeve (4) in three parts. It is used to verify the coaxiality of the mounting shaft hole of the shaft-mounted reducer and the power input shaft of the working machine. When the verification rod (36) moves, it can drive the arc-shaped threaded plate (32) to move radially along the guide groove (31) through the power plate (34), so as to realize the engagement or separation of the arc-shaped threaded plate (32) and the mounting screw (1).

2. The shaft-mounted reducer press-fitting tool according to claim 1, characterized in that: The inner tube of the spline telescopic tube (2) is threadedly connected to the mounting screw (1), and its inner end is hinged to a deflection plate (21) through a rotating tube (25). When the spline telescopic tube (2) rotates, it can move axially along the mounting screw (1), pushing the deflection plate (21) to drive the inner support plate (22) to expand radially along the groove of the fixed plate (23). The inner support plate (22) is hinged to the end of the deflection plate (21) away from the spline telescopic tube (2). The fixed plate (23) is fixedly sleeved on the mounting screw (1) to limit the movement trajectory of the inner support plate (22). The locking block (24) is fixed in a ring shape to the left end of the spline telescopic tube (2) to transmit rotational power.

3. The shaft-mounted reducer press-fitting tool according to claim 2, characterized in that: There are six deflection plates (21), two of which are set in parallel. The deflection plates (21) in the same group are hinged to an inner support plate (22) to ensure that the inner support plate (22) expands smoothly. The outer arc surface of the inner support plate (22) is provided with wear-resistant metal sheets to enhance the wear resistance of the inner support and avoid scratching the inner wall of the mounting shaft hole.

4. The shaft-mounted reducer press-fitting tool according to claim 1, characterized in that: The ring (4) has a receiving groove (41), and a spring telescopic rod (42) is hinged in the receiving groove (41). The end of the spring telescopic rod (42) away from the receiving groove (41) is hinged to the verification rod (36) to provide elastic assistance and reset force for the movement of the verification rod (36).

5. The shaft-mounted reducer press-fitting tool according to claim 4, characterized in that: The verification rod (36) is located in the area of ​​the receiving groove (41) and is connected to the rotating sleeve (37) with damping rotation. The outer wall of the ring sleeve (4) is connected to the notch blocking sleeve (45) with rotation. The notch blocking sleeve (45) is located on the left side of the rotating sleeve (37). By aligning or misaligning the notch with the ring sleeve (4), the movement of the verification rod (36) is controlled to lock or unlock the verification state.

6. The shaft-mounted reducer press-fitting tool according to claim 5, characterized in that: A rotating retaining ring (43) is fixedly connected to the left side of the notch blocking sleeve (45). The rotating retaining ring (43) is rotatably connected to the end face of the drive sleeve (3). The inner wall of the rotating retaining ring (43) is provided with a retaining block. The verification rod (36) is provided with a locking groove (38) that matches the retaining block, which is used to lock the position of the verification rod (36) and ensure that the arc-shaped threaded piece (32) is stably attached to the installation screw (1).

7. The shaft-mounted reducer press-fitting tool according to claim 4, characterized in that: The verification rod (36) is fixedly connected to a wedge block (39) in the area of ​​the receiving groove (41). The receiving groove (41) is fixedly connected to a spring telescopic plate (44). The end of the spring telescopic plate (44) facing the wedge block (39) is a wedge-shaped end, which is used to help the verification rod (36) continue to move after the spring telescopic rod (42) deflects to a vertical state.

8. The shaft-mounted reducer press-fitting tool according to claim 1, characterized in that: The right end of the ring (4) is equipped with a wear-resistant sleeve (6) for direct contact and pushing of the shaft-mounted reducer during press fitting. The wear-resistant sleeve (6) has an arc groove for the calibration rod (36) to pass through.

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