CN207975149U - A kind of rolling bearing units of achievable preload effect - Google Patents

Abstract

The utility model discloses a kind of rolling bearing units of achievable preload effect,Including bearing block,The bearing block is internally provided with mounting groove,It is socketed with neck bush on the inside of the mounting groove,Both sides are connected with symmetrical gib block at the top of the neck bush,It is socketed with fixing groove on the outside of the gib block,And the fixing groove is embedded at the top of the mounting groove inner wall,The neck bush bottom outside is threaded with preload screwed pipe,The preload screwed pipe bottom end is welded with pre-load nut,And the pre-load nut is horizontally set below the bearing block,The neck bush intracavity bottom connects restraining position ring block,Multiple vertical keyways are equipped with above the spacing ring,The neck bush inner cavity is set with bearing,The utility model is compact-sized,It is reliable and stable,It adjusts easy,It is easy to disassemble,It is easy to use,Service life is longer,The degree pre-tightened convenient for flexible modulation,It can realize that preload acts on,Improve the transmission stability and transmission accuracy of bearing,It is with a wide range of applications.

Description

A kind of rolling bearing units of achievable preload effect

Technical field

The utility model is related to bearing mechanical equipment technical field, specially a kind of axis of usheing to seat of achievable preload effect It holds.

Background technology

The rapid development of China bearing industry, bearing species from less to more, product quality and technical merit from low to high, industry Scale from small to large, has formd the professional production system that product class is substantially complete, production distribution is relatively reasonable, and bearing is A kind of important spare part in contemporary mechanical equipment, its major function are the mechanical rotary bodies of support, are reduced in its motion process Friction coefficient, and ensure its rotating accuracy, bearing assembly can be mounted directly to by several bolts in the main body of mechanical device, With aligning function, the supplement etc. of fat can be lubricated, be it is a kind of installing and using all very easy product, rolling bearing units are By rolling bearing and a kind of combined bearing unit of bearing block, using than wide.

And existing rolling bearing units, structure are not compact enough, are easy to increase aeration level in bearing works long hours, and increase The abrasion of bearing, reduces the service life of bearing, some rolling bearing units, it has not been convenient to dismount, increase the difficulty of bearing maintenance Degree, it is not easy to installation bearing be accurately positioned, be easy to cause bearing fixation and be not sufficiently stable, increase the assembly time of bearing, also Rolling bearing units, it has not been convenient to preload adjusting be carried out to bearing, and pretightning force is not easily controlled, preload precision is poor, reduces The transmission stability and transmission accuracy of bearing much cannot be satisfied requirement of the current people to the product in this way.

So how to design a kind of rolling bearing units of achievable preload effect, becoming us will currently solve the problems, such as.

Utility model content

The purpose of this utility model is to provide a kind of rolling bearing units of achievable preload effect, to solve above-mentioned background skill The problem of being proposed in art.

To achieve the above object, the utility model provides the following technical solutions：A kind of axis of usheing to seat of achievable preload effect It holds, including bearing block, the bearing block is internally provided with mounting groove, and neck bush, the neck bush are socketed on the inside of the mounting groove Top both sides are connected with symmetrical gib block, are socketed with fixing groove on the outside of the gib block, and the fixing groove is embedded described At the top of mounting groove inner wall, the neck bush bottom outside is threaded with preload screwed pipe, and the preload screwed pipe bottom end is welded with pre- Tight nut, and the pre-load nut is horizontally set below the bearing block, the neck bush intracavity bottom connects restraining position ring block, Multiple vertical keyways are equipped with above the spacing ring, and the keyway is evenly distributed on the neck bush inner wall, the liner Set inner cavity is set with bearing, and the outer peripheral surface of the bearing is welded with the installation key to match with keyway, and the installation key is embedding In the keyway, it is fitted with rubber washer at the top of the spacing ring, and the rubber washer is press-fitted to the bearing outer ring Bottom, the bearing block both sides are welded with symmetrical fixed plate, and the fixed plate screw top is connected with fixing bolt, and institute Fixing bolt is stated to extend vertically through to the fixed plate bottom.

Further, gap, and the preload screwed pipe are provided between the neck bush bottom outside and mounting groove inside In gap.

Further, the gib block is in semicylinder shape, and the fixing groove is set as the knot to match with gib block Structure.

Further, the pre-load nut outer surface is equipped with non-slip texture.

Further, the keyway rectangular in shape, the installation key are in bar shaped rectangular shape.

Further, the bottom end of the fixed plate is located at the lower section of the bearing block.

Compared with prior art, the utility model has the beneficial effects that：The rolling bearing units of this kind of achievable preload effect, knot Structure is compact, reliable and stable, adjusts simplicity, and easy to disassemble, easy to use, service life is longer, the journey pre-tightened convenient for flexible modulation Degree can realize that preload acts on, improve the transmission stability and transmission accuracy of bearing, solid by being connected in bearing block both sides Fixed board, convenient for bearing block to be fixedly mounted in the main body of mechanical device, easy disassembly is led by being connected in neck bush both sides To item, convenient in bearing block, neck bush being effectively prevent to rotate neck bush location and installation, pass through keyway on the inside of neck bush Connection is matched with the installation key of bearing outer ring, and press-fitting has rubber washer in bearing outer ring bottom, can stablize fixing bearing, Vibration is effectively reduced, stable structure improves the service life of bearing, drives preload screwed pipe to tighten by rotation pre-load nut interior Bushing can realize that preload acts on, preferably fasten bearing, improve the transmission stability and transmission accuracy of bearing, so should The rolling bearing units of the achievable preload effect of kind have wide application market.

Description of the drawings

Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality Novel specific implementation mode for explaining the utility model, does not constitute limitations of the present invention together.

Fig. 1 is the whole vertical section structural schematic diagram of the utility model；

Fig. 2 is the overlooking structure diagram of the utility model；

Fig. 3 is the neck bush outside structure diagram of the utility model；

Figure label：1, bearing block；2, mounting groove；3, neck bush；4, gib block；5, fixing groove；6, screwed pipe is pre-tightened；7, pre- Tight nut；8, spacing ring；9, keyway；10, bearing；11, installation key；12, rubber washer；13, fixed plate；14, fixing bolt.

Specific implementation mode

The utility model is further described With reference to embodiment, wherein being given for example only property of attached drawing Illustrate, expression is only schematic diagram rather than pictorial diagram, should not be understood as the limitation to this patent, in order to which this reality is better described With novel specific implementation mode, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product, It will be understood by those skilled in the art that the omitting of some known structures and their instructions in the attached drawings are understandable, it is based on this reality With the specific implementation mode in novel, institute obtained by those of ordinary skill in the art without making creative efforts There are other specific implementation modes, shall fall within the protection scope of the present invention.

- Fig. 3 is please referred to Fig.1, the utility model provides a kind of technical solution：A kind of axis of usheing to seat of achievable preload effect It holds, including bearing block 1, the bearing block 1 is internally provided with mounting groove 2, and 2 inside of the mounting groove is socketed with neck bush 3, described interior 3 top both sides of bushing are connected with symmetrical gib block 4, and 4 outside of the gib block is socketed with fixing groove 5, and the fixing groove 5 is embedding It is located at the top of 2 inner wall of the mounting groove, 3 bottom outside of the neck bush, which is threaded with, pre-tightens screwed pipe 6, the preload screwed pipe 6 Bottom end is welded with pre-load nut 7, and the pre-load nut 7 is horizontally set on 1 lower section of the bearing block, 3 inner cavity of the neck bush Bottom connects restraining position ring block 8, and 8 top of the spacing ring is equipped with multiple vertical keyways 9, and the keyway 9 is evenly distributed on institute 3 inner wall of neck bush is stated, 3 inner cavity of the neck bush is set with bearing 10, and the outer peripheral surface of the bearing 10 is welded with and 9 phase of keyway Matched installation key 11, and the installation key 11 is inlaid in the keyway 9,8 top of the spacing ring is fitted with rubber washer 12, and the rubber washer 12 is press-fitted to the bottom of 10 outer ring of the bearing, 1 both sides of the bearing block are welded with symmetrical fixation Plate 13,13 screw top of the fixed plate is connected with fixing bolt 14, and the fixing bolt 14 is extended vertically through to the fixation 13 bottom of plate, the above constitute the basic structure of the utility model.

More specifically, gap, and the preload are provided between 2 inside of 3 bottom outside of the neck bush and mounting groove Screwed pipe 6 is located in gap, enables to the preload screwed pipe 6 to be rotated between neck bush 3 and mounting groove 2, is convenient for pre-tightening It adjusts, the gib block 4 is in semicylinder shape, and the fixing groove 5 is set as the structure to match with gib block 4, convenient for peace Fill the neck bush 3 so that neck bush 3 is fixed, prevents neck bush 3 from rotating, and improves stability, the preload spiral shell Female 7 outer surfaces are equipped with non-slip texture, relatively labor-saving convenient for rotating the preload screwed pipe 6, and easy to use, the keyway 9 is in length Square configuration, the installation key 11 are in bar shaped rectangular shape, can ensure that the installation key 11 matches with keyway 9, convenient Bearing 10 is installed so that the fixation of bearing 10 is more stable and reliable, and the bottom end of the fixed plate 13 is located under the bearing block 1 Side, bearing block 1 is easily installed by the fixed plate 13, can be pre-tightened in 1 bottom reserved space of the bearing block convenient for adjusting Nut 7 and preload screwed pipe 6, it is easy to operate.

The utility model improve in：The rolling bearing units of this kind of achievable preload effect pass through fixed spiral shell first when in use Bolt 14 runs through the fixed plate 13 for being connected to 1 both sides of bearing block, and bearing block 1 is fixedly mounted in the main body of mechanical device, convenient Dismounting, then by the gib block 4 of 3 both sides of neck bush, by 3 location and installation of neck bush in the fixing groove 5 of 1 inside of bearing block, It effectively prevent neck bush 3 to rotate, improves stability, neck bush is then inlaid in by the installation key 11 of 10 outer ring of bearing In the keyway 9 of 3 insides, bearing 10 is fixedly attached to 3 inside of neck bush, then has rubber by the press-fitting in 10 outer ring bottom of bearing Rubber gasket 12, can effectively reduce vibration, then stable structure drives preload screwed pipe 6 to tighten liner by rotating pre-load nut 7 Set 3 can realize that preload acts on, preferably fasten bearing 10, improve the transmission stability and transmission accuracy of bearing 10, operate Simplicity, it is easy to use.

While there has been shown and described that specific embodiment of the present utility model, for those of ordinary skill in the art For, it is possible to understand that do not depart from the principles of the present invention and spirit in the case of, can to these specific implementation modes into The a variety of change, modification, replacement and modification of row, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of rolling bearing units of achievable preload effect, including bearing block (1), it is characterised in that：The bearing block (1) is internal Equipped with mounting groove (2), it is socketed with neck bush (3) on the inside of the mounting groove (2), both sides are connected with pair at the top of the neck bush (3) The gib block (4) of title, gib block (4) outside is socketed with fixing groove (5), and the fixing groove (5) is embedded in the installation At the top of slot (2) inner wall, neck bush (3) bottom outside, which is threaded with, pre-tightens screwed pipe (6), preload screwed pipe (6) bottom end It is welded with pre-load nut (7), and the pre-load nut (7) is horizontally set below the bearing block (1), the neck bush (3) Intracavity bottom connects restraining position ring block (8), and multiple vertical keyways (9), and the keyway (9) are equipped with above the spacing ring (8) Be evenly distributed on the neck bush (3) inner wall, neck bush (3) inner cavity is set with bearing (10), the bearing (10) it is outer Circle surface soldered has the installation key (11) to match with keyway (9), and the installation key (11) is inlaid in the keyway (9), It is fitted with rubber washer (12) at the top of the spacing ring (8), and the rubber washer (12) is press-fitted to the bearing (10) outer ring Bottom, bearing block (1) both sides are welded with symmetrical fixed plate (13), and fixed plate (13) screw top is connected with solid Determine bolt (14), and the fixing bolt (14) is extended vertically through to the fixed plate (13) bottom.

2. a kind of rolling bearing units of achievable preload effect according to claim 1, it is characterised in that：The neck bush (3) it is provided with gap between bottom outside and mounting groove (2) inside, and the preload screwed pipe (6) is located in gap.

3. a kind of rolling bearing units of achievable preload effect according to claim 1, it is characterised in that：The gib block (4) it is in semicylinder shape, and the fixing groove (5) is set as the structure to match with gib block (4).

4. a kind of rolling bearing units of achievable preload effect according to claim 1, it is characterised in that：The pre-load nut (7) outer surface is equipped with non-slip texture.

5. a kind of rolling bearing units of achievable preload effect according to claim 1, it is characterised in that：The keyway (9) Rectangular in shape, the installation key (11) are in bar shaped rectangular shape.

6. a kind of rolling bearing units of achievable preload effect according to claim 1, it is characterised in that：The fixed plate (13) bottom end is located at the lower section of the bearing block (1).