Assembling tool for parts on shaft

Abstract

The utility model relates to an assembling tool for parts on a shaft, which comprises a shaft and a screw rod matched with the shaft for use, a threaded hole is arranged at the center of one side of the shaft, one end of the screw rod is in threaded connection with the threaded hole, a transition cover plate is arranged on the screw rod, the transition cover plate is sleeved on the screw rod through a through hole arranged in the middle, and the shaft is sleeved on the transition cover plate. The rear side of the transition cover plate is provided with a one-way thrust ball bearing sleeved on the screw rod, the rear side of the one-way thrust ball bearing is provided with an adjusting nut, the adjusting nut is in threaded connection with the screw rod, the structure is simple, and the situation that the bull gear is not assembled in place due to the fact that the bull gear is obliquely arranged on the shaft in the assembling process is avoided.

Description

Technical Field

[0001] The utility model relates to an assembly tool for parts on a shaft. Background Art

[0002] When assembling large parts such as gears, cranks, eccentric wheels or parts with a relatively long inner hole on a shaft, it is often difficult to install the parts on the shaft. During the assembly process, the assembled parts such as gears are prone to skew, resulting in situations where large gears and other parts are stuck on the shaft and cannot be assembled in place, making the processes of installation and removal difficult. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the utility model provides an assembly tool for parts on a shaft, so that the situation where the large gear is skewed on the shaft and cannot be assembled in place will not occur during the assembly process.

[0004] The technical solution of the utility model to solve the above technical problems is as follows: An assembly tool for parts on a shaft is provided, which includes a shaft and a screw rod used in cooperation with the shaft. A threaded hole is opened at the center of one side of the shaft, and one end of the screw rod is threadedly connected to the threaded hole. A transition cover plate is arranged on the screw rod, and the transition cover plate is sleeved on the screw rod through a through hole arranged in the middle. A one-way thrust ball bearing sleeved on the screw rod is arranged at the rear side of the transition cover plate, and an adjusting nut is arranged at the rear side of the one-way thrust ball bearing, and the adjusting nut is threadedly connected to the screw rod.

[0005] The further limited technical solution of the utility model is as follows:

[0006] The diameter of the through hole in the middle of the aforementioned transition cover plate is larger than the diameter of the screw rod.

[0007] Detachable positioning rods are arranged on both sides of the aforementioned transition cover plate.

[0008] The distance between the aforementioned two positioning rods is larger than the outer diameter of the bearing.

[0009] A detachable threaded joint is arranged at one end of the aforementioned screw rod.

[0010] Advantages of the present utility model: The structure of the present utility model is simple and easy to operate. One end of the screw rod is provided with a detachable threaded joint, and a suitable threaded joint can be selected according to the size of the central threaded hole of the shaft. The threaded joint of the screw rod is screwed into the central threaded hole of the shaft, and then a transition cover plate, a single-direction thrust ball bearing and an adjusting nut are installed in sequence. Rotate the adjusting nut with a wrench, so that during the screwing process of the adjusting nut on the screw rod, the transition cover plate is pushed by the rotation of the spherical bearing, thereby slowly pressing the large gear onto the shaft. At the same time, since the screw rod is fixed in the central threaded hole of the shaft, it can ensure that the adjusting nut is perpendicular to the shaft, thus ensuring that the transition cover plate and the large gear are perpendicular to the shaft, and preventing the situation that the large gear is skewed on the shaft and the large gear cannot be assembled in place during the assembly process.

[0011] The diameter of the through hole in the middle of the transition cover plate is larger than the diameter of the screw rod, which is convenient for the transition cover plate to be installed on the screw rod. Detachable positioning rods are provided on both sides of the transition cover plate, and the distance between the two positioning rods is larger than the outer diameter of the bearing. This is convenient for positioning and for the large gear to be completely pressed into the shaft. At the same time, positioning rods with appropriate lengths can be selected according to the length of the shaft extending out of the large gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural view of the present utility model;

[0013] Figure 2 is a schematic structural view of the shaft transition cover plate of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Embodiment

[0015] This embodiment provides an assembly tool for parts on a shaft, and the structure is as Figure 1-2 shown, including a shaft 1 and a screw rod 2 used in cooperation with the shaft. A threaded hole 8 is provided at the center on one side of the shaft. One end of the screw rod is provided with a detachable threaded joint 3, and one end of the screw rod is threadedly connected to the threaded hole through the threaded joint. A transition cover plate 4 is provided on the screw rod 2. The transition cover plate is sleeved on the screw rod through a through hole 9 provided in the middle. The diameter of the through hole in the middle of the transition cover plate is larger than the diameter of the screw rod. Detachable positioning rods 5 are provided on both sides of the transition cover plate. The distance between the two positioning rods is larger than the outer diameter of the bearing. A single-direction thrust ball bearing 6 sleeved on the screw rod is provided at the rear of the transition cover plate. An adjusting nut 7 is provided at the rear of the single-direction thrust ball bearing 6, and the adjusting nut 7 is threadedly connected to the screw rod.

[0016] The structure of this embodiment is simple and easy to operate. A detachable threaded joint is provided at one end of the screw rod. An appropriate threaded joint can be selected according to the size of the central threaded hole of the shaft. The threaded joint of the screw rod is screwed into the central threaded hole of the shaft. Then, a transition cover plate, a single-direction thrust ball bearing, and an adjusting nut are installed in sequence. Rotate the adjusting nut with a wrench. During the screwing-in process of the adjusting nut on the screw rod, the transition cover plate is pushed by the rotation of the spherical bearing, so that the large gear is slowly pressed onto the shaft. At the same time, since the screw rod is fixed in the central threaded hole of the shaft, it can ensure that the adjusting nut is perpendicular to the shaft, thus ensuring that the transition cover plate and the large gear are perpendicular to the shaft, and preventing the situation that the large gear is skewed on the shaft and the large gear cannot be assembled in place during the assembly process.

[0017] The diameter of the through hole in the middle of the transition cover plate of this embodiment is larger than the diameter of the screw rod, which is convenient for the transition cover plate to be installed on the screw rod. Removable positioning rods are provided on both sides of the transition cover plate, and the distance between the two positioning rods is larger than the outer diameter of the bearing. This is convenient for positioning and for the large gear to be completely pressed into the shaft. At the same time, positioning rods with appropriate lengths can be selected according to the length of the shaft extending out of the large gear.

[0018] In addition to the above embodiments, the present invention may have other implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention.

Claims

1. An assembly tool for parts on a shaft, comprising a shaft and a screw used in conjunction with the shaft, characterized in that: A threaded hole is opened at the center of one side of the shaft, one end of the screw is threadedly connected to the threaded hole, a transition cover plate is arranged on the screw, and the transition cover plate is sleeved on the screw through a through hole arranged in the middle, a one-way thrust ball bearing sleeved on the screw is arranged on the rear side of the transition cover plate, and an adjusting nut is arranged on the rear side of the one-way thrust ball bearing, and the adjusting nut is threadedly connected to the screw.

2. An assembly tool for parts on an axis according to claim 1, characterized in that: The diameter of the through hole in the middle of the transition cover plate is larger than the diameter of the screw.

3. An assembly tool for parts on an axis according to claim 1, characterized in that: Removable positioning rods are arranged on both sides of the transition cover plate.

4. An assembly tool for parts on an axis according to claim 3, characterized in that: The distance between the two positioning rods is greater than the outer diameter of the bearing.

5. The assembly tool for parts on an axis according to claim 1, characterized in that: One end of the screw rod is provided with a detachable threaded joint.

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