CN215318454U

CN215318454U - Miniature bearing installation device

Info

Publication number: CN215318454U
Application number: CN202120859482.1U
Authority: CN
Inventors: 黄宇帆; 魏建行; 张丽芳; 田亚强
Original assignee: Henan Xinfusheng Environmental Protection Equipment Co ltd
Current assignee: Henan Xinfusheng Environmental Protection Equipment Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-12-28
Anticipated expiration: 2031-04-25

Abstract

The utility model relates to a micro bearing mounting device. The miniature bearing mounting device comprises a base, wherein a positioning hole for positioning a shaft rod is formed in the base, V-shaped blocks located on two sides of the positioning hole are arranged on the base, the V-shaped faces of the two V-shaped blocks are arranged oppositely, a driving mechanism for driving the V-shaped blocks to move along the radial direction of the positioning hole is arranged on the base, a mounting frame is arranged on the base, a pressing rod is connected to the mounting frame in a threaded mode and is coaxially arranged with the positioning hole, and a pressing sleeve is arranged at the lower end of the pressing rod and is coaxially arranged with the pressing rod. Compared with the prior art that the micro bearing is installed by using a hammering method, the micro bearing installation device clamps the shaft rod, and the compression rod slowly presses the micro bearing on the shaft rod in a thread feeding mode, so that the micro bearing is prevented from being damaged by the hammering method; and saves more labor, and reduces the labor intensity. Through set up the V-arrangement head at the depression bar lower extreme, improved and compressed tightly cover operating stability, further improved bearing installation effectiveness.

Description

Miniature bearing installation device

Technical Field

The utility model belongs to the technical field of bearing installation devices, and particularly relates to a miniature bearing installation device.

Background

The bearing is the most common part in a mechanical structure, and the existing bearing mounting methods are various and mainly comprise methods of mechanical press mounting, hot mounting, cold mounting and the like. The heating matching is applied to the installation occasions of large and medium-sized bearings with large interference. The press-in method mainly adopts a cold-press method and a mechanical press-in method, and a hydraulic method, tools used for mechanical press-fitting are large in size and complex in structure, so that the mechanical press-in method is suitable for mounting large-batch large and medium-sized bearings.

For the installation of small-batch bearings, cold mounting is usually adopted, and a hammering method is adopted during cold mounting. However, the small-sized bearing and the micro-bearing have lower rigidity, and the shaft and the bearing are easily damaged by adopting a hammering method; moreover, when the bearing is installed by knocking, the bearing cannot be uniformly stressed, so that the assembly precision cannot be guaranteed. In addition, the hammering method has high labor intensity and low working efficiency.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems, the utility model provides a micro bearing installation device, which aims to solve the technical problems that the micro bearing is easy to damage and the labor intensity is high when the micro bearing is installed by a hammering method.

The technical scheme of the miniature bearing mounting device is as follows:

the miniature bearing mounting device comprises a base, wherein a positioning hole for positioning a shaft rod is formed in the base, V-shaped blocks located on two sides of the positioning hole are arranged on the base, the V-shaped faces of the two V-shaped blocks are arranged oppositely, a driving mechanism for driving the V-shaped blocks to move along the radial direction of the positioning hole is arranged on the base, a mounting frame is arranged on the base, a pressing rod is connected to the mounting frame in a threaded mode and is coaxially arranged with the positioning hole, and a pressing sleeve is arranged at the lower end of the pressing rod and is coaxially arranged with the pressing rod.

As a further improvement to the above technical solution, the mounting bracket includes two fixing rods and a cross beam, the two V-shaped blocks are respectively located on the front and rear sides of the positioning hole, the two fixing rods are respectively located on the left and right sides of the positioning hole, the cross beam is fixedly connected between the two fixing rods, and the pressing rod is in threaded connection with the cross beam.

As a further improvement to the technical scheme, the fixing rod comprises a polished rod section and a screw section located on the upper side of the polished rod section, the diameter of the screw section is smaller than that of the polished rod section, a through hole matched with the screw section is formed in the cross beam, and a compression nut used for compressing the cross beam on the polished rod section is arranged on the screw section.

As a further improvement to the technical scheme, the lower end of the polished rod section is connected to the base in a threaded mode.

As a further improvement to the technical scheme, the upper end of the pressure lever is provided with a rotating handle.

As a further improvement to the above technical solution, the driving mechanism includes a fixing block and a push rod, the fixing block is fixed to one side of the positioning hole, and the push rod is in threaded connection with the fixing block.

As a further improvement to the technical scheme, the end part of the push rod is provided with a protrusion, and the V-shaped block is provided with a groove matched with the protrusion.

As a further improvement to the technical scheme, the lower end of the pressure lever is provided with a V-shaped head, and the V-shaped head is inserted into the compaction sleeve.

Compared with the prior art, the utility model provides a miniature bearing mounting device which has the following advantages:

when the miniature bearing mounting device is used, the shaft lever is inserted into the positioning hole, the push rod is rotated and approaches to the positioning hole along the radial direction of the positioning hole, and the push rod pushes the V-shaped block to approach to the positioning hole so as to clamp the shaft lever in the positioning hole. And selecting a proper pressing sleeve according to the mounting position of the bearing, wherein the length dimension of the pressing sleeve is larger than the dimension between the mounting position of the bearing and the shaft end. The bearing is placed at the upper end of the shaft rod, the pressing sleeve is placed at the upper end of the bearing, the pressing rod is rotated, the pressing rod moves downwards, the pressing sleeve is pushed to move downwards, and the pressing sleeve pushes the bearing sleeve to be sleeved on the shaft rod. Compared with the prior art that the micro bearing is installed by using a hammering method, the micro bearing installation device clamps the shaft rod, and the compression rod slowly presses the micro bearing on the shaft rod in a thread feeding mode, so that the micro bearing is prevented from being damaged by the hammering method; and saves more labor, and reduces the labor intensity.

According to the miniature bearing mounting device, the V-shaped head is arranged at the lower end of the pressing rod, so that the matching accuracy of the V-shaped head and the pressing sleeve is improved, the operation stability of the pressing sleeve is improved, and the bearing mounting efficiency is further improved.

In the miniature bearing mounting device, the fixing rods are arranged on the left side and the right side of the base, and the V-shaped blocks are arranged on the front side and the rear side of the base, so that the interference between the push rod and the mounting frame is avoided.

Drawings

FIG. 1 is a front cross-sectional view of a micro-bearing mounting device of the present invention;

FIG. 2 is a side view of the micro-bearing mounting device of the present invention;

reference numbers in the figures: 1. a base; 2. a shaft lever; 3. fixing the rod; 4. a cross beam; 5. a compression nut; 6. a pressure lever; 7. rotating the handle; 8. a V-shaped block; 9. a fixed block; 10. a push rod; 11. a fixed head; 12. a V-shaped head; 13. a compression sleeve; 14. a micro-bearing.

Detailed Description

The utility model is described in further detail below with reference to the following figures and detailed description:

as shown in fig. 1 and 2, the micro-bearing mounting device of the present invention includes a base 1, and the base 1 has a rectangular plate-like structure. The central point of base 1 puts and has seted up the locating hole, fixedly connected with mounting bracket on the base 1.

Specifically, the mounting bracket includes two dead levers 3 and crossbeam 4, and preferably, base 1 is last to be seted up two screw holes that are located the locating hole left and right sides. The lower extreme of two dead levers 3 is threaded connection respectively in the screw hole, has the external screw thread with screw hole assorted on the lower extreme outer wall of dead lever 3. The fixed rod 3 comprises a polished rod section and a screw section, and the polished rod section and the screw section are integrally formed. The diameter of the polished rod section is larger than that of the screw section, and the polished rod section and the screw section are coaxially arranged. Two through holes matched with the screw rod sections at the upper ends of the fixing rods 3 are formed in the cross beam 4, and the cross beam 4 is sleeved on the screw rod sections of the two fixing rods 3 and is abutted to the polished rod sections. The upper end of the screw rod section is in threaded connection with a compression nut 5, and the cross beam 4 is compressed on the screw rod section of the fixing rod 3 by the compression nut 5.

In this embodiment, the V-shaped blocks 8 are respectively placed on the front and rear sides of the positioning hole of the base 1, and the V-shaped surfaces of the two V-shaped blocks 8 are oppositely arranged and face the positioning hole. The base 1 is provided with a driving mechanism located on the outer side of the V-shaped block 8, and the driving mechanism is used for driving the V-shaped block 8 to move along the radial direction of the positioning hole. Preferably, the driving mechanism comprises a fixing block 9 and a push rod 10, wherein the fixing block 9 is fixed on the outer side of the V-shaped block 8 and corresponds to the V-shaped block 8 in the radial direction of the positioning hole. The push rod 10 is in threaded connection with the fixing block 9, and two ends of the push rod 10 extend out of two sides of the fixing block 9 respectively. The axis of the push rod 10 extends along the radial direction of the positioning hole, one end of the push rod 10, which is far away from the positioning hole, is fixedly connected with a fixing head 11, the fixing head 11 is provided with a jack extending along the radial direction of the push rod 10, the force application rod is inserted in the jack, and the fixing head 11 is rotated through the force application rod, so that the push rod 10 is rotated.

In this embodiment, the one end and the 8 butt of V-arrangement piece that push rod 10 is close to the locating hole, in order to strengthen

push rod

10 and 8 contact stability of V-arrangement piece, the one end welding that push rod 10 is close to the locating hole has the arch, have on the V-arrangement piece 8 with protruding assorted recess, protruding cartridge has strengthened

push rod

10 and 8 contact stability of V-arrangement piece in the recess.

In this embodiment, the cross beam 4 is connected with a pressing rod 6 through a thread, an axis of the pressing rod 6 extends in the up-down direction, and the pressing rod 6 and the positioning hole are coaxially arranged. In order to rotate the compression rod 6 conveniently, the upper end of the compression rod 6 is connected with a rotating handle 7, and the compression rod 6 is rotated by the rotating handle 7 to save more labor.

In this embodiment, the lower end of the pressure lever 6 is provided with a pressing sleeve 13, and the pressing sleeve 13 is arranged coaxially with the push rod 10. When in use, the lower end of the pressure lever 6 is abutted against the pressing sleeve 13. The pressing sleeve 13 has multiple models, and during use, the pressing sleeve 13 is properly selected according to the bearing installation position, so that the length dimension of the pressing sleeve 13 is larger than the dimension between the bearing installation position and the shaft end. In order to enhance the contact stability of the pressure rod 6 and the pressing sleeve 13, the lower end of the pressure rod 6 is connected to a V-shaped head 12, and the V-shaped head 12 can be inserted into the pressing sleeve 13.

When the miniature bearing installation device is used, the shaft lever 2 is inserted into the positioning hole, the push rod 10 is rotated, the push rod 10 is close to the positioning hole along the radial direction of the positioning hole, and the push rod 10 pushes the V-shaped block 8 to be close to the positioning hole so as to clamp the shaft lever 2 in the positioning hole. According to the installation position of the micro bearing 14, a proper pressing sleeve 13 is selected, and the length size of the pressing sleeve 13 is larger than the size between the installation position of the bearing and the shaft end. The bearing is placed at the upper end of the shaft rod 2, the pressing sleeve 13 is placed at the upper end of the micro bearing 14, the pressing rod 6 is rotated, the pressing rod 6 moves downwards, the pressing sleeve 13 is pushed to move downwards, and the pressing sleeve 13 pushes the micro bearing 14 to be sleeved on the shaft rod 2.

Compared with the prior art, the utility model provides a miniature bearing mounting device which has the following advantages: the miniature bearing mounting device clamps the shaft lever 2, and the pressure lever 6 slowly presses the miniature bearing on the shaft lever 2 in a thread feeding mode, so that the miniature bearing is prevented from being damaged by a hammering method; and saves more labor, and reduces the labor intensity. In the miniature bearing mounting device, the V-shaped head 12 is arranged at the lower end of the pressure lever 6, so that the matching accuracy of the V-shaped head 12 and the pressing sleeve 13 is improved, the running stability of the pressing sleeve 13 is improved, and the bearing mounting efficiency is further improved. In the miniature bearing mounting device, the fixing rods 3 are arranged on the left side and the right side of the base 1, and the V-shaped blocks 8 are arranged on the front side and the rear side of the base 1, so that the push rod 10 is prevented from interfering with the mounting frame.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The miniature bearing mounting device is characterized by comprising a base, wherein a positioning hole for positioning a shaft rod is formed in the base, V-shaped blocks located on two sides of the positioning hole are arranged on the base, the V-shaped faces of the two V-shaped blocks are oppositely arranged, a driving mechanism for driving the V-shaped blocks to move along the radial direction of the positioning hole is arranged on the base, a mounting frame is arranged on the base, a pressing rod coaxially arranged with the positioning hole is connected to the mounting frame through threads, and a pressing sleeve coaxially arranged with the pressing rod is arranged at the lower end of the pressing rod.

2. The micro-bearing mounting device of claim 1, wherein the mounting bracket comprises two fixing rods and a cross beam, the two V-shaped blocks are respectively located at the front side and the rear side of the positioning hole, the two fixing rods are respectively located at the left side and the right side of the positioning hole, the cross beam is fixedly connected between the two fixing rods, and the pressing rod is in threaded connection with the cross beam.

3. The micro-bearing mounting device as claimed in claim 2, wherein the fixing rod comprises a polish rod section and a screw section located at an upper side of the polish rod section, the screw section has a diameter smaller than that of the polish rod section, the beam is provided with a through hole matching with the screw section, and the screw section is provided with a compression nut for compressing the beam on the polish rod section.

4. A micro-bearing mounting arrangement according to claim 3, wherein the lower end of the polished rod section is threaded onto the base.

5. The micro bearing mounting device of claim 1, wherein the upper end of the strut is provided with a rotating handle.

6. The micro bearing mounting device as claimed in claim 2, wherein the driving mechanism includes a fixing block fixed to one side of the positioning hole and a push rod screwed to the fixing block.

7. The micro bearing mounting device of claim 6, wherein the end of the push rod is provided with a protrusion, and the V-shaped block is provided with a groove matched with the protrusion.

8. The micro bearing mounting device of claim 1, wherein the lower end of the strut is provided with a V-shaped head, the V-shaped head being inserted into the clamping sleeve.