CN106112911A - A bearing lifting device - Google Patents

Abstract

The invention discloses a bearing lifting device, which comprises a base and a lead screw passing through the base. The part of the lead screw protruding from the top of the base is threadedly connected with a turntable, and the part of the lead screw protruding from the bottom of the base is detachably connected with a The nut is pulled out, and the outer diameter of the nut is larger than the inner diameter of the bearing to be pulled out, and smaller than the outer diameter of the bearing to be pulled out. Most of the structure of the device is located on one side of the bearing to be pulled out, and the pulling nut is located on the other side of the bearing and is pressed against the side, and then the pulling nut is connected with the part of the screw protruding from the bottom of the base, and then rotated The turntable raises the position of the lead screw relative to the base, and the base can use the outer box as a force point, so that the lifting nut follows the lead screw to lift and take out the bearing. With the above-mentioned structural design, the bearing lifting device is not only simple in structure, easy to use, but also easy to adjust flexibly and has a small storage space.

Description

A bearing lifting device

technical field

The invention relates to the technical field of mechanical equipment maintenance, and more specifically relates to a bearing lifting device.

Background technique

Bearings are an important part of contemporary mechanical equipment, mainly used to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Bearings can be divided into two categories: rolling bearings and sliding bearings, among which rolling bearings are more commonly used.

Rolling bearings are generally composed of four parts: outer ring, inner ring, rolling elements and cage. Faults or failures may occur during use, so the bearings need to be pulled out for easy inspection and maintenance.

At present, the commonly used method is to hit the pin shaft of the bearing with a hand hammer until the bearing is shot down from the bearing installation. The damage to the inner ring of the bearing and the bearing port is extremely serious. Some departments use three claws or two claws to grab the bearing, but the bearing is too small to be taken out with this tool, and it is difficult to operate.

To sum up, how to effectively solve the problem that the bearing is difficult to take out intact and efficiently is a problem urgently needed by those skilled in the art.

Contents of the invention

In view of this, the object of the present invention is to provide a bearing lifting device, the structural design of which can effectively solve the problem that it is difficult to remove the bearing intact and efficiently.

In order to achieve the above object, the present invention provides the following technical solutions:

A bearing lifting device, comprising a base and a lead screw passing through the base, the part of the lead screw protruding from the top of the base is threadedly connected with a turntable, and the part of the lead screw protruding from the bottom of the base is detachably connected with a pulling nut, The outer diameter of the pulling nut is greater than the inner diameter of the bearing to be pulled, and smaller than the outer diameter of the bearing to be pulled.

Preferably, the above-mentioned bearing lifting device includes a thrust bearing sleeved on the lead screw, and the outer circumference of the thrust bearing contacts and fits with the inner wall of the base.

Preferably, in the above-mentioned bearing lifting device, a stop pin is fixedly connected to the outer periphery of the lead screw.

Preferably, in the above-mentioned bearing pulling device, the part of the lead screw protruding from the bottom of the base is fixedly connected with an inner collar, and the pulling nut is detachably connected with the inner collar.

Preferably, in the above-mentioned bearing pulling device, the inner ring sleeve and the inner ring of the bearing to be pulled are in interference fit.

Preferably, in the above-mentioned bearing pulling device, the inner diameter of the base is larger than the outer diameter of the bearing to be pulled, and an anti-slip protective rubber is fixedly connected to the bottom of the base.

Preferably, in the above-mentioned bearing lifting device, symmetrical handles are fixedly connected to the outer circumference of the turntable.

The bearing lifting device provided by the present invention includes a base and a lead screw passing through the base. The part of the lead screw protruding from the top of the base is threadedly connected with a turntable, and the part of the lead screw protruding from the bottom of the base is detachably connected with a puller. Nut, the outer diameter of the pulling nut is greater than the inner diameter of the bearing to be pulled out, and smaller than the outer diameter of the bearing to be pulled out.

When the bearing lifting device provided by the present invention is used, most of the structure of the device is located on one side of the bearing to be pulled out, and the pulling nut is located on the other side of the bearing and is pressed against the side, and then the pulling nut and the lead screw are The part protruding from the bottom of the base is connected, and then turn the turntable to elevate the position of the screw relative to the base, and the base can use the outer box as a point of force, so that the lifting nut follows the screw to lift and the bearing is taken out. With the above-mentioned structural design, the bearing lifting device is not only simple in structure, easy to use, but also easy to adjust flexibly and has a small storage space.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural view of a bearing lifting device provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of the disassembled structure of the bearing lifting device provided by the embodiment of the present invention.

The markings in the attached drawings are as follows:

Lead screw 1, turntable 2, handle 21, thrust bearing 3, stop pin 4, base 5, inner ring sleeve 6, lifting nut 7, anti-slip protective rubber 8.

detailed description

The embodiment of the invention discloses a bearing lifting device, which avoids damage to the inner ring of the bearing and the bearing port, improves the efficiency of bearing removal, and is also suitable for bearings with smaller diameters.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a schematic structural diagram of a bearing lifting device provided by an embodiment of the present invention, and FIG. 2 is a schematic diagram of a disassembled structure of a bearing lifting device provided by an embodiment of the present invention.

The embodiment of the present invention provides a bearing lifting device, including a base 5 and a lead screw 1 passing through the base 5, the part of the lead screw 1 protruding from the top of the base 5 is threadedly connected with a turntable 2, and the lead screw 1 protrudes The part at the bottom of the base 5 is detachably connected with a pull nut 7, and the outer diameter of the pull nut 7 is greater than the inner diameter of the bearing to be pulled, and smaller than the outer diameter of the bearing to be pulled.

When using the bearing lifting device provided by the above embodiment, most of the structure of the device is located on one side of the bearing to be pulled out, and the pulling nut 7 is located on the other side of the bearing and is pressed against this side, and then the pulling nut 7 is It is connected with the part of the screw 1 protruding from the bottom of the base 5, and then the turntable 2 is turned to raise the position of the screw 1 relative to the base 5, and the base 5 can use the outer box or the outer ring of the bearing as a point of force, so that the lifting The nut 7 follows the lead screw 1 to lift and take out the bearing. With the above-mentioned structural design, the bearing lifting device is not only simple in structure, easy to use, but also easy to adjust flexibly and has a small storage space.

In order to optimize the use effect of the lead screw 1 in the above embodiment, the bearing lifting device includes a thrust bearing 3 sheathed on the lead screw 1 , and the outer periphery of the thrust bearing 3 contacts and fits with the inner wall of the base 5 . Preferably, a thrust bearing 3 is added, so that the running track of the screw 1 is more stable and reliable, and the lifting and lowering of the screw 1 are relatively smoother and smoother.

In order to further optimize the use effect of the lead screw 1 in the above embodiment, a stop pin 4 is fixedly connected to the outer periphery of the lead screw 1 . Preferably, a stop pin 4 is added to prevent the lead screw 1 from detaching from the base 5, making the device more secure during use.

In another embodiment of the present invention, the part of the lead screw 1 protruding from the bottom of the base 5 is fixedly connected with an inner collar, and the pulling nut 7 is detachably connected with the inner collar. By setting the inner collar detachably connected with the lifting nut 7, the device is more adapted to the contour of the inner ring of the bearing, and at the same time, the connection and installation of the lifting screw are more stable.

In order to optimize the use effect of the inner ring in the above embodiment, the inner ring sleeve 6 and the inner ring of the bearing to be pulled out have an interference fit. Preferably, the inner ring sleeve 6 and the inner ring of the bearing to be pulled out have an interference fit, so that the inner ring can closely fit the inner ring of the bearing, ensuring a more stable pulling effect.

In order to optimize the use effect of the base 5 in the foregoing embodiments, the inner diameter of the base 5 is larger than the outer diameter of the bearing to be pulled out, and an anti-slip protective rubber 8 is fixedly connected to the bottom of the base 5 . Preferably, the inner diameter of the base 5 is larger than the outer diameter of the bearing to be pulled out, which can facilitate the base 5 to focus on the external structure. At the same time, it is preferable that the bottom is fixedly connected with a non-slip protective rubber 8, so that the position of the base 5 is more stable during use, and it is not easy to wear.

In order to optimize the use effect of the turntable 2 in the foregoing embodiments, a symmetrical handle 21 is fixedly connected to the outer periphery of the turntable 2 . Preferably, a symmetrical handle 21 is fixedly connected to the outer periphery of the turntable 2. When using the turntable 2, a large torque can be easily realized, saving the effort required for the user to take out the bearing.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

It should also be noted that in this specification, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent in the process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. a bearing pull-up, it is characterised in that include the leading screw (1) of pedestal (5) and through described pedestal (5), described Leading screw (1) stretches out the partial threads connection at described pedestal (5) top has rotating disk (2), described leading screw (1) to stretch out described pedestal (5) Nut (7) is pulled out in the dismountable connection of part of bottom, and described external diameter pulling out nut (7) is more than the interior of the bearing having waited to pull out Footpath, less than having waited the external diameter of described bearing that pulls out.

Bearing pull-up the most according to claim 1, it is characterised in that include the thrust being sheathed on described leading screw (1) Bearing (3), the periphery of described thrust bearing (3) and the contact internal walls of described pedestal (5) coordinate.

Bearing pull-up the most according to claim 2, it is characterised in that the periphery of described leading screw (1) is fixedly connected with Latch (4).

Bearing pull-up the most according to claim 3, it is characterised in that described leading screw (1) stretches out described pedestal (5) end The part in portion is fixedly connected with inner sleeve, and described is pulled out nut (7) and described inner sleeve removably connects.

Bearing pull-up the most according to claim 4, it is characterised in that it is described that described inner ring sleeve (6) and having waited pulls out The internal ring interference fit of bearing.

6. according to the bearing pull-up described in any one of claim 1 to 5, it is characterised in that the internal diameter of described pedestal (5) is big The external diameter of the described bearing pulled out in treating, is fixedly connected with anti-skidding protection rubber (8) bottom it.

Bearing pull-up the most according to claim 6, it is characterised in that the periphery of described rotating disk (2) is fixedly connected with Symmetrical handle (21).