Bearing grease injection device structure
阅读说明:本技术 一种轴承注脂器结构 (Bearing grease injection device structure ) 是由 侯智伟 黄勇 姚伯如 黄山川 林妙正 于 2020-07-03 设计创作,主要内容包括:本发明涉及注脂工装技术领域,公开了一种轴承注脂器结构,包括基座、注脂座,注脂座的顶面设有上注脂腔,注脂座的底面设有下注脂腔,基座内设有进脂通道,下注脂腔与进脂通道连通,上注脂腔的底面设有若干与下注脂腔的导流孔;上注脂腔内设有支承座,支承座通过定位杆、螺栓与注脂座的中心固定连接,支承座的顶面外周向上延伸形成内挡圈,注脂座的顶面向上延伸形成外挡圈,内挡圈与外挡圈之间形成环形注脂通道,注脂座的上端外侧固定有导向套,外挡圈与导向套之间形成轴承外圈卡槽,定位杆的上端设有导向柱,内挡圈与导向柱的外侧之间形成轴承内圈卡槽。本发明具有使用方便、注脂均匀的有益效果。(The invention relates to the technical field of grease injection tools, and discloses a bearing grease injector structure which comprises a base and a grease injection seat, wherein an upper grease injection cavity is arranged on the top surface of the grease injection seat, a lower grease injection cavity is arranged on the bottom surface of the grease injection seat, a grease inlet channel is arranged in the base, the lower grease injection cavity is communicated with the grease inlet channel, and a plurality of flow guide holes communicated with the lower grease injection cavity are formed in the bottom surface of the upper grease injection cavity; the bearing seat is arranged in the upper grease injection cavity and fixedly connected with the center of the grease injection seat through a positioning rod and a bolt, the periphery of the top surface of the bearing seat extends upwards to form an inner check ring, the top surface of the grease injection seat extends upwards to form an outer check ring, an annular grease injection channel is formed between the inner check ring and the outer check ring, a guide sleeve is fixed on the outer side of the upper end of the grease injection seat, a bearing outer ring clamping groove is formed between the outer check ring and the guide sleeve, a guide post is arranged at the upper end of the positioning rod, and a bearing inner ring clamping groove is formed between the inner check ring and. The invention has the advantages of convenient use and uniform grease injection.)
1. A bearing grease injector structure is characterized by comprising a base and a grease injection seat fixed with the top surface of the base, wherein an upper grease injection cavity is arranged on the top surface of the grease injection seat, a lower grease injection cavity is arranged on the bottom surface of the grease injection seat, a grease inlet channel is arranged in the base, the lower grease injection cavity is communicated with the grease inlet channel, and a plurality of flow guide holes communicated with the lower grease injection cavity are formed in the bottom surface of the upper grease injection cavity; the bearing is arranged in the upper grease injection cavity and fixedly connected with the center of the grease injection seat through a positioning rod and a bolt, the periphery of the top surface of the bearing extends upwards to form an inner check ring, the top surface of the grease injection seat extends upwards to form an outer check ring, an annular grease injection channel is formed between the inner check ring and the outer check ring, a guide sleeve is fixed on the outer side of the upper end of the grease injection seat, a bearing outer ring clamping groove is formed between the outer check ring and the guide sleeve, a guide post is arranged at the upper end of the positioning rod, and a bearing inner ring clamping groove is formed between the inner check ring and the outer side of the guide post.
2. The bearing grease injector structure of claim 1, wherein a grease separating seat is arranged on the positioning rod between the supporting seat and the bottom surface of the upper grease injecting cavity, the periphery of the top surface of the grease separating seat extends upwards to form a grease separating ring extending into the annular grease injecting channel, an outer grease injecting gap is formed between the outer wall of the grease separating ring and the inner wall of the upper grease injecting cavity, an inner grease injecting gap is formed between the inner wall of the grease separating ring and the inner retainer ring, and a plurality of grease separating holes for communicating the upper grease injecting cavity and the inner grease injecting gap are formed in the grease separating seat.
3. The structure of claim 2, wherein the top surface of the alicyclic ring is an arc-shaped supporting surface matched with the bearing retainer.
4. The structure of the bearing grease injector as claimed in claim 2 or 3, wherein a plurality of adjusting gaskets are sleeved on the positioning rod between the supporting seat and the bottom surface of the upper grease injection cavity.
5. The structure of a bearing grease injector as claimed in claim 1, wherein the guide sleeve is made of nylon and has an inner edge at the upper end thereof provided with a bevel.
6. The structure of claim 1, wherein a filter screen is arranged on the bottom surface of the lower grease injection cavity, the center of the filter screen is fixed to the lower end of the positioning rod through a bolt, a support ring is arranged on the lower side of the outer side of the filter screen, and a spring washer is arranged between the support ring and the base.
7. The structure of a bearing grease injector as claimed in claim 1 or 2, wherein the guide post has a central hole in the center, the inner wall of the central hole has a plurality of sliding holes uniformly distributed along the radial direction, the outer ends of the sliding holes communicate with the outside, each sliding hole has a support pin slidably connected with the sliding hole, the inner ends of the support pins are connected through a torsion spring, the upper end of the guide post is fixed with a threaded sleeve, a screw rod is arranged in the threaded sleeve, the screw rod passes through the threaded sleeve and is in threaded connection with the threaded sleeve, the lower end of the screw rod is fixed with a conical slide block, the inner end surface of the support pin is a spherical surface, and the conical surface of the conical slide block abuts against the spherical surface.
8. The structure of the bearing grease injector as claimed in claim 7, wherein a handle is fixed at the upper end of the screw rod, and anti-skid threads are arranged on the outer side of the handle; and a pre-tightening pressure spring is arranged on the screw rod between the conical sliding block and the threaded sleeve.
Technical Field
The invention relates to the technical field of grease injection tools, in particular to a bearing grease injector structure.
Background
The connecting line of the contact points of the steel balls in the angular contact ball bearing, the bearing inner ring and the bearing outer ring forms an angle with the radial direction, the angle is a contact angle, and the contact angles are generally 15 degrees, 30 degrees and 40 degrees. The angular contact ball bearing can bear large unidirectional axial load and radial load, and the larger the contact angle is, the larger the capacity of bearing the axial load is. The angular contact ball bearings are various, one of the angular contact ball bearings is a separation type angular contact ball bearing, a bearing inner ring, a bearing outer ring and a bearing ball retainer of the separation type angular contact ball bearing are separated, the separation type angular contact ball bearing needs to be assembled and combined for use when in use, lubricating grease needs to be injected among the bearing inner ring, the bearing outer ring and the bearing outer ring before the bearing is used to ensure sufficient lubricity of the bearing, however, the separation type angular contact ball bearing is separated, so that the lubricating grease is inconvenient to inject, the lubricating grease can be injected after the bearing inner ring, the bearing outer ring and the bearing ball retainer are positioned, and at present, no grease injection tool special for the separation type angular contact ball bearing is provided.
Disclosure of Invention
The invention aims to solve the problems of grease injection of the bearing in the prior art, and provides a grease injector structure for the bearing, which is suitable for injecting lubricating grease into a separated angular contact ball bearing, is convenient to use and is uniform in grease injection.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bearing grease injector structure comprises a base and a grease injecting seat fixed with the top surface of the base, wherein an upper grease injecting cavity is arranged on the top surface of the grease injecting seat, a lower grease injecting cavity is arranged on the bottom surface of the grease injecting seat, a grease inlet channel is arranged in the base, the lower grease injecting cavity is communicated with the grease inlet channel, and a plurality of flow guide holes communicated with the lower grease injecting cavity are formed in the bottom surface of the upper grease injecting cavity; the bearing is arranged in the upper grease injection cavity and fixedly connected with the center of the grease injection seat through a positioning rod and a bolt, the periphery of the top surface of the bearing extends upwards to form an inner check ring, the top surface of the grease injection seat extends upwards to form an outer check ring, an annular grease injection channel is formed between the inner check ring and the outer check ring, a guide sleeve is fixed on the outer side of the upper end of the grease injection seat, a bearing outer ring clamping groove is formed between the outer check ring and the guide sleeve, a guide post is arranged at the upper end of the positioning rod, and a bearing inner ring clamping groove is formed between the inner check ring and the outer side of the guide post. The end part of the bearing outer ring is clamped into the bearing outer ring clamping groove for limiting, the bearing inner ring is clamped into the bearing inner ring clamping groove for limiting, the ball retainer is positioned between the bearing inner ring and the bearing outer ring, the outer end of the grease inlet channel on the base is butted with grease injecting equipment (a grease injecting gun and the like) through the outside, lubricating grease sequentially passes through the grease inlet channel, the lower grease inlet cavity, the flow guide hole, the upper grease inlet cavity and the annular grease inlet channel and then enters the bearing, therefore, the uniform grease injection of the bearing is realized, and the ball bearing is particularly suitable for grease injection of a separation type angular contact ball.
Preferably, a grease separating seat is arranged on the positioning rod and located between the supporting seat and the bottom surface of the upper grease injecting cavity, the periphery of the top surface of the grease separating seat extends upwards to form a grease separating ring extending into the annular grease injecting channel, an outer grease injecting gap is formed between the outer wall of the grease separating ring and the inner wall of the upper grease injecting cavity, an inner grease injecting gap is formed between the inner wall of the grease separating ring and the inner retainer ring, and a plurality of grease separating holes used for communicating the upper grease injecting cavity and the inner grease injecting gap are formed in the grease separating seat. The annular grease injection channel is divided into an inner grease injection gap and an outer grease injection gap through the grease passing ring, and lubricating grease is directly led into the outer wall of the bearing inner ring, the inner wall of the bearing outer ring and the clearance of the bearing retainer, so that the using amount of the lubricating grease is reduced, the utilization rate of the lubricating grease is improved, and the waste of the lubricating grease is reduced.
Preferably, the top surface of the alicyclic ring is an arc-shaped supporting surface matched with the bearing retainer. The arc-shaped supporting surface is used for supporting and positioning the bearing retainer.
Preferably, a plurality of adjusting gaskets are sleeved on the positioning rod between the supporting seat and the bottom surface of the upper grease injection cavity. The adjusting gasket is used for adjusting the axial height of the grease distributing seat and the grease distributing ring so as to meet various size requirements during bearing positioning and ensure that the top surface of the grease distributing ring can support the bearing retainer.
Preferably, an inclined chamfer is arranged at the inner edge of the upper end of the guide sleeve, and the guide sleeve is made of nylon. The oblique chamfer plays a guiding role when the bearing outer ring is arranged in the bearing outer ring clamping groove, and the nylon can prevent the bearing outer ring from being scratched.
Preferably, the bottom surface of the lower grease injection cavity is provided with a filter screen, the center of the filter screen is fixed with the lower end of the positioning rod through a bolt, the lower side of the outer side of the filter screen is provided with a support ring, and a spring washer is arranged between the support ring and the base. Lubricating grease entering the bearing can pass through the filter screen, and the filter screen can filter large-particle impurities in the lubricating grease (particle impurities can exist in the lubricating grease due to various reasons).
Preferably, a center hole is formed in the center of the guide column, a plurality of sliding holes are uniformly distributed along the radial direction on the inner wall of the center hole, the outer ends of the sliding holes are communicated with the outside, a supporting pin is arranged in each sliding hole and is in sliding connection with the sliding hole, the inner ends of the supporting pins are connected through a torsion spring, a threaded sleeve is fixed at the upper end of the guide column, a screw rod is arranged in the threaded sleeve and penetrates through the threaded sleeve to be in threaded connection with the threaded sleeve, a conical sliding block is fixed at the lower end of the screw rod, the inner end face of the supporting pin is a spherical surface, and the conical surface of the conical sliding block is abutted against. The bearing inner ring is rubbed with the circumferential surface of the guide post when being installed and positioned every time, and the clearance between the guide post and the bearing inner ring is gradually enlarged along with long-term use, so that the bearing inner ring is loosened in a clamping groove of the bearing inner ring, and the grease injection operation is not facilitated; when the circumferential surface of the guide column is abraded to cause the bearing inner ring to be loosened, the bearing inner ring is arranged in the bearing inner ring clamping groove, the screw rod is rotated to enable the conical slider to move downwards, the conical surface of the conical slider pushes the supporting pin to move outwards, the outer end of the supporting pin extends out of the sliding hole and then is tightly propped and positioned with the inner wall of the bearing inner ring, the screw rod is rotated reversely after grease is injected, the supporting pin retracts into the sliding hole under the action of the torsion spring to reset, and the bearing can be conveniently taken out at the moment.
Preferably, a handle is fixed at the upper end of the screw rod, and anti-skid grains are arranged on the outer side of the handle; and a pre-tightening pressure spring is arranged on the screw rod between the conical sliding block and the threaded sleeve. The handle is convenient for manually rotating the screw rod; when the support pin tightly pushes against the bearing inner ring, the screw rod and the screw sleeve are locked through threads and are matched with the pre-tightening pressure spring for pre-tightening, so that the screw rod is prevented from loosening in the grease injection process, and the use is more stable.
Therefore, the grease injection device has the beneficial effects of convenience in use and uniform grease injection, and is particularly suitable for grease injection of the separated angular contact ball bearing.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a cross-sectional view taken at a-a in fig. 2.
FIG. 4 is a schematic connection diagram of the grease injection seat, the grease separation seat and the support seat.
Fig. 5 is a schematic view showing a state where the tapered slider moves downward and the support pin protrudes outward.
In the figure: the grease injection device comprises a base 1, a
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the bearing grease injector structure includes a base 1 and a
The bottom surface of the lower
As shown in fig. 4 and 5, the center of the
the outer ends of the sliding holes are communicated with the outside, each sliding hole is internally provided with a supporting pin 62, the supporting pins are in sliding connection with the sliding holes, the inner ends of the supporting pins 62 are connected through a torsion spring 63, the outer ends of the supporting pins are retracted into the sliding holes in a natural state, the upper end of the
The principle of the invention is as follows with reference to the attached drawings: the bearing 13 is connected with the bearing grease injector in the state shown in fig. 3, the end part of the bearing
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
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