CN211737786U - Rotating shaft fixing mechanism - Google Patents

Abstract

The utility model proposes a rotating shaft fixing mechanism, which relates to the technical field of fixing mechanisms, comprising a base and two clamping mechanisms, two ends of a rotating shaft are rotatably connected to the two clamping mechanisms, and the clamping mechanisms include A first bearing bush, a second bearing bush and a U-bolt, the first bearing bush and the second bearing bush are sleeved on the outside of the rotating shaft oppositely, and the second bearing bush is provided with a locking part matched with the base, so The U-shaped bolt tightens the first bearing bush, the rotating shaft and the second bearing bush on the base and is fixed by a nut. Through the fitting and installation of the first bearing bush, the second bearing bush and the U-shaped bolt on the rotating shaft, the structure of the clamping mechanism is simple, the matching difficulty of the U-shaped bolt, the first bearing bush and the second bearing bush is small, the disassembly and assembly are convenient, and the manpower and material resources are saved. The first bearing bush and the second bearing bush are limited by the locking portion, so that the first bearing bush and the second bearing bush do not rotate around the rotating shaft and do not fall off, so that the rotating shaft works stably.

Description

A rotating shaft fixing mechanism

technical field

The utility model relates to the technical field of fixing mechanisms, in particular to a rotating shaft fixing mechanism.

Background technique

In today's various mechanical equipment, the fixing of the rotating shaft is often involved. The rotating shaft is usually fixed on the workbench by bearings or other means, such as setting a corresponding bearing seat on the workbench, and then installing the bearing and the rotating shaft. The design and installation of the bearing seat are complicated, and the matching requirements between the bearing seat, the bearing and the rotating shaft are relatively high. If the bearing seat is not provided and the bearing hole is directly opened on the worktable, the bearing hole will be fixed in one place. Changes and changes in size will cause the installation of the rotating shaft to be inflexible. If the bearing is used, the structure of the bearing part of the rotating shaft will be complicated, the matching requirements are high, the installation is difficult, and it is not easy to disassemble.

Utility model content

The problem to be solved by the present invention is to provide a rotating shaft fixing mechanism in view of the above-mentioned deficiencies in the prior art, so as to solve the problem that the rotating shaft in the prior art is inflexible in installation, complicated in structure, high in coordination requirements, and inconvenient. disassembly problem.

To achieve the above object, the utility model adopts the following technical scheme:

A rotating shaft fixing mechanism includes a base and two clamping mechanisms, two ends of the rotating shaft are rotatably connected to the two clamping mechanisms, and the clamping mechanisms include a first bearing bush, a second bearing bush and a U-bolt , the first bearing bush and the second bearing bush are sleeved on the outside of the rotating shaft oppositely, the second bearing bush is provided with a locking part that cooperates with the base, and the U-shaped bolt connects the first bearing bush, The rotating shaft and the second bearing shell are tightened on the base and fixed by a nut.

As described in the above scheme, the beneficial technical effects of the present utility model are:

The rotating shaft is rotatably installed on the clamping mechanism, and the first bearing bush, the second bearing bush and the U-bolt are fitted to the rotating shaft to make the clamping mechanism simple in structure, and the cooperation of the U-bolt, the first bearing bush and the second bearing bush Low difficulty, convenient disassembly and assembly, saving manpower and material resources, the first bearing bush and the second bearing bush are limited by the locking part, so that the first bearing bush and the second bearing bush will not rotate around the rotating shaft and fall off, making the rotating shaft work stably .

Description of drawings

Fig. 1 is the overall schematic diagram of the rotating shaft fixing mechanism in the embodiment;

2 is a schematic structural diagram of the first bearing bush and the second bearing bush in the embodiment;

In the figure, 1. base; 2. clamping mechanism; 21. first bearing pad; 22. second bearing pad; 221. locking part; 23. installation groove; 24. U-bolt; 3. limit block.

Detailed ways

In order to make the technical means, creative features, achievement goals and functions realized by the present utility model clearer and easier to understand, the present utility model is further elaborated below in conjunction with the accompanying drawings and specific embodiments:

1, the present utility model discloses a rotating shaft fixing mechanism, including a base 1 and two clamping mechanisms 2, both ends of the rotating shaft are rotatably connected to the two clamping mechanisms 2, the clamping mechanisms 2 includes a first bearing bush 21, a second bearing bush 22 and a U-bolt 24, the first bearing bush 21 and the second bearing bush 22 are sleeved on the outside of the rotating shaft opposite to each other, and the second bearing bush 22 is provided with The locking portion 221 matched with the base 1, the U-shaped bolt 24 tightens the first bearing bush 21, the rotating shaft and the second bearing bush 22 on the base 1 and is fixed by a nut. The clamping mechanism 2 has a simple structure through the fitting installation of the first bearing bush 21 , the second bearing bush 22 and the U-shaped bolt 24 on the rotating shaft, the matching difficulty of the U-shaped bolt 24 , the first bearing bush 21 and the second bearing The bearing bush 22 cooperates with the base 1 to prevent the rotation of the first bearing bush 21 and the second bearing bush 22 , and the clamping mechanism 2 is easy to assemble and disassemble, saving manpower and material resources.

Further, referring to FIG. 1 , limit blocks 3 are fixedly installed at both ends of the rotating shaft, and the limit blocks 3 are attached to the inner sides of the two clamping mechanisms 2 . The limit blocks 3 abut on the inner sides of the two clamping mechanisms 2, so that the axial movement of the rotating shaft is restricted, and the axial movement of the rotating shaft is prevented.

Further, referring to FIG. 2 , the outer rings of the first bearing bush 21 and the second bearing bush 22 are respectively provided with installation grooves 23 which are matched with the U-shaped bolts 24 , and the locking portion 221 is in a plane with the base 1 . matching planes. The U-shaped bolts 24 are stuck in the installation grooves 23 of the upper bearing and the lower bearing, so as to restrict the axial movement of the first bearing bush 21 and the second bearing bush 22, and the locking portion 221 is in contact with the upper plane of the base 1, preventing the first bearing bush 21 and the second bearing bush 22 from moving axially. The rotation of the first bearing bush 21 and the second bearing bush 22 .

Further, referring to FIG. 1 , the edge of the base 1 is bent into an L shape. The bending part of the edge of the base 1 can be welded on the corresponding device, the contact area between the bending part and the welding part is large, and the welding is firm, which prevents the rotating shaft from falling off due to excessive torque during operation.

The implementation principle of this embodiment is:

When installing the rotating shaft fixing mechanism, the first bearing bush 21 and the second bearing bush 22 are sleeved on both ends of the rotating shaft, the first bearing bush 21 and the second bearing bush 22 are tightened with U-shaped bolts 24 and embedded in the installation groove 23, and Fixing the U-bolt 24 on the base 1, in order to make the rotating shaft can be completely fixed on the base 1, two clamping mechanisms 2 composed of the first bearing 21, the second bearing 22 and the U-bolt 24 should be provided, respectively. The two ends of the rotating shaft are located inside the two clamping mechanisms 2, and the limit blocks 3 are fixedly installed at both ends of the rotating shaft to limit the axial movement of the rotating shaft and prevent its axial movement. After the installation is completed The fixed structure of the rotating shaft can only be used for the rotation of the rotating shaft, and the rest of the movement is restricted.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions are modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and all of them should be included in the scope of the claims of the present invention.

Claims (4)

1. The utility model provides a rotation axis fixed establishment, its characterized in that includes base (1) and two fixture (2), and the both ends of rotation axis are rotated and are connected two fixture (2) are last, fixture (2) include first axle bush (21), second axle bush (22) and U type bolt (24), first axle bush (21) with second axle bush (22) cover relatively establish outside the rotation axis, second axle bush (22) are equipped with base (1) complex locking portion (221), U type bolt (24) will first axle bush (21), rotation axis and second axle bush (22) take up on base (1) and fixed through the nut.

2. The rotating shaft fixing mechanism according to claim 1, wherein two ends of the rotating shaft are fixedly provided with a limiting block (3), and the limiting blocks (3) are attached to the inner sides of the two clamping mechanisms (2).

3. A rotary shaft fixing mechanism according to claim 1, wherein the outer rings of the first bearing bush (21) and the second bearing bush (22) are respectively provided with mounting grooves (23) for engaging with the U-bolts (24), and the locking portion (221) is a flat surface for engaging with the flat surface of the base (1).

4. A rotating shaft fixing mechanism according to claim 1, wherein the edge of the base (1) is bent into an L-shape.

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