CN219402445U - Bearing overflow channel processing tool - Google Patents

Abstract

The application provides a preferred scheme of bearing through-flow channel processing frock, including overcoat, endotheca and guide pin bushing. The outer sleeve is provided with a middle hole for installing the inner sleeve. The inner sleeve is detachably connected in the middle hole. The guide sleeve is provided with a processing hole and is connected with the inner sleeve. Wherein, after the inner sleeve is connected with the outer sleeve, a mounting cavity for mounting the bearing is formed between the outer peripheral surface of the inner sleeve and the inner peripheral surface of the middle hole, and the processing hole is communicated with the mounting cavity.

Description

Bearing overflow channel processing tool

Technical Field

The utility model relates to the field of bearing machining devices, in particular to a bearing through-flow channel machining tool.

Background

In the field of the nuclear industry, graphite bearings are a common component. Before use, it is often necessary to drill holes in specific areas of the graphite bearing to machine the flow channels. However, the graphite bearing has a high accuracy requirement on the drilling position, and the position accuracy can only be judged by the experience of a processing person when the graphite bearing is directly drilled, so that the working efficiency is low and the processing accuracy cannot be guaranteed.

Disclosure of Invention

The utility model aims to solve the technical problems that: the lack of solutions for drilling holes or drilling grooves in graphite bearings and the like in the prior art results in low working efficiency and simultaneously cannot guarantee machining accuracy.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

bensen discloses a preferred embodiment of a bearing through-flow channel tooling, comprising: the outer sleeve is provided with a middle hole for installing the inner sleeve; an inner sleeve detachably connected in the middle hole; the guide sleeve is provided with a processing hole and is connected with the inner sleeve; when the inner sleeve is connected with the outer sleeve, a mounting cavity for mounting a bearing is formed between the outer peripheral surface of the inner sleeve and the inner peripheral surface of the middle hole, and the processing hole is communicated with the mounting cavity.

As a preferable scheme, the outer sleeve is provided with at least one first pin hole, the inner sleeve is provided with a second pin hole corresponding to the first pin hole, and the first pin hole is aligned with the second pin hole and is provided with a positioning pin in a penetrating manner.

As a preferable scheme, the outer sleeve and the inner sleeve are fixedly connected through bolts.

As a preferable scheme, the outer peripheral surface of the inner sleeve is provided with a blocking edge, and when the inner sleeve is connected with the outer sleeve, the blocking edge is abutted against the surface of the outer sleeve.

As a further preferable scheme, the inner wall of the middle hole is provided with a first positioning step, the lower end of the inner sleeve is provided with a second positioning step, and when the inner sleeve is installed in the middle hole, the second positioning step is abutted to the second positioning step.

As a further preferable scheme, the inner sleeve is provided with at least two mounting holes, the mounting holes are uniformly distributed around the circumferential direction of the inner sleeve, and the guide sleeve is detachably connected with the mounting holes.

As a further preferable mode, the center of the inner sleeve is provided with a lightening hole.

The use method of the scheme comprises the steps of firstly installing the graphite bearing to be processed into the middle hole, then installing the inner sleeve, and after the inner sleeve and the outer sleeve are fixed, the graphite bearing is just installed in an installation cavity surrounded by the inner sleeve and the outer sleeve, and the installation cavity plays a role in fixing the graphite bearing. Before machining, the guide sleeve is installed, and then drilling machining is directly carried out through the guide sleeve. Because the position of the guide sleeve is fixed, and the shape of the processing hole is fixed, the position of each drilling hole and the size of the hole are ensured to be fixed, and therefore, the scheme has the advantage of improving the processing precision. In addition, the whole drilling process is provided with positioning and limiting by the guide sleeve, and the machining process is provided with a reference object, so that the machining method is very simple.

Drawings

FIG. 1 is a top view of a preferred embodiment of a bearing flow channel tooling provided herein;

fig. 2 is a schematic view taken along section line B-B of fig. 1.

Reference numerals illustrate: 1. a jacket; 10. a middle hole; 11. a first positioning step; 2. an inner sleeve; 20. a mounting hole; 21. a retaining edge; 22. a second positioning step; 23. a lightening hole; 3. guide sleeve; 30. processing a hole; 4. a mounting cavity; 40. a graphite bearing; 501. a first pin hole; 502. a second pin hole; 51. a positioning pin; 6. and (5) a bolt.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be a communication between the interiors of two elements; may be directly or indirectly through an intermediate medium, and the specific meaning of the terms in the present utility model will be understood by those skilled in the art in specific cases.

In a preferred embodiment of the bearing flow channel processing tool provided in the present application, as shown in fig. 1 and fig. 2, the bearing flow channel processing tool includes an outer sleeve 1, an inner sleeve 2 and a guide sleeve 3, wherein the outer sleeve 1 is provided with a middle hole 10, and the inner sleeve 2 can be installed in the middle hole 10. After the inner sleeve 2 is arranged in the middle hole 10, the inner sleeve 2 and the outer sleeve 1 jointly enclose a closed installation cavity 4. The function of the mounting chamber 4 is to mount a graphite bearing 40, the graphite bearing 40 having been mounted in the mounting chamber 4 in the embodiment shown in fig. 2. The mounting cavity 4 provides a fixation for the graphite bearing 40, ensuring that the graphite bearing 40 does not move during processing. The guide sleeve 3 is mounted on the inner sleeve 2, the guide sleeve 3 is provided with a machining hole 30, the machining hole 30 penetrates through the upper side and the lower side of the guide sleeve 3, and meanwhile, the machining hole 30 is communicated with the mounting cavity 4. Therefore, during processing, the guide sleeve 3 can be directly used as a reference object, and the drilling tool can drill the graphite bearing 40 by relying on the inner wall of the guide sleeve 3.

In the above embodiment, the guide sleeve 3 provides a reference for the drilling tool and also provides a rest for the drilling tool, so that the drilling precision is effectively improved. And, it is ensured that drilling can be performed at a predetermined position on the graphite bearing 40 every time, so that the position accuracy and the dimensional accuracy of the machined through-flow passage are very high.

It should be noted that the shape of the hole drilled in the graphite bearing 40 in the above embodiment is specifically determined according to the design shape of the flow channel, and is not strictly limited herein.

In some preferred embodiments, to ensure high accuracy of the installation position of the guide sleeve 3, at least one first pin hole 501 is provided on the outer sleeve 1, and at least one second pin hole 502 is provided on the inner sleeve 2, where the second pin hole 502 corresponds to the first pin hole 501, and a positioning pin 51 can be inserted between the two. By means of the scheme, the mounting positions of the outer sleeve 1 and the inner sleeve 2 can be positioned, so that the guide sleeve 3 is located at a set position each time, and machining accuracy is not reduced due to the fact that the outer sleeve 1 and the inner sleeve 2 are mounted in a staggered mode.

In certain preferred embodiments, the outer sleeve 1 and the inner sleeve 2 are fixedly connected through the bolts 6, so that dislocation of the outer sleeve 1 and the inner sleeve 2 in the processing process is avoided, and the outer sleeve 1 and the inner sleeve 2 are convenient to detach.

Of course, any common connecting member may be used to fixedly connect the outer sleeve 1 and the inner sleeve 2.

In some preferred embodiments, a retaining edge 21 is further provided on the outer peripheral surface of the inner sleeve 2, and when the inner sleeve 2 is connected to the outer sleeve 1, the retaining edge 21 can abut against the upper surface of the outer sleeve 1, thereby providing a limit for the inner sleeve 2, and preventing the inner sleeve 2 from being inserted too deeply into the outer sleeve 1 to cause difficulty in extraction. At the same time, the dimensions of the mounting cavity 4 are also fixed, since the abutment edge 21 is able to abut the outer jacket 1.

In a further preferred embodiment, a first positioning step 11 is further provided at the bottom of the middle hole 10, and a second positioning step 22 is provided at the bottom of the inner sleeve 2, and the second positioning step 22 is received on the first positioning step 11, so that the inner sleeve 2 is further provided with a mounting limit, and a function of preventing the inner sleeve 2 from shaking along the radial direction of the middle hole 10 is also performed.

In some preferred embodiments, at least two mounting holes 20 for mounting the guide sleeve 3 are provided on the outer jacket 1, the mounting holes 20 are uniformly arranged in the circumferential direction, and the guide sleeve 3 may be mounted in any of the mounting holes 20. The advantage of this solution is that the mounting position of the guide sleeve 3 is optional, so that the guide sleeve 3 can be mounted at different positions as required, thus realizing the function of machining the flow passage at different positions. Meanwhile, a weight-reducing hole 23 is provided on the inner sleeve 2 for reducing the overall weight of the inner sleeve 2.

In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims (7)

1. Bearing overflows passageway processing frock, its characterized in that includes:

the outer sleeve is provided with a middle hole for installing the inner sleeve;

an inner sleeve detachably connected in the middle hole;

the guide sleeve is provided with a processing hole and is connected with the inner sleeve;

when the inner sleeve is connected with the outer sleeve, a mounting cavity for mounting a bearing is formed between the outer peripheral surface of the inner sleeve and the inner peripheral surface of the middle hole, and the processing hole is communicated with the mounting cavity.

2. The bearing flow channel tooling of claim 1, wherein the outer sleeve has at least one first pin hole and the inner sleeve has a second pin hole corresponding to the first pin hole, the first pin hole being aligned with the second pin hole and being threaded with a locating pin.

3. The bearing flow channel tooling of claim 1, wherein the outer sleeve and the inner sleeve are fixedly connected by bolts.

4. The tool for machining the bearing through-flow channel according to claim 1, wherein a retaining edge is arranged on the outer peripheral surface of the inner sleeve, and the retaining edge abuts against the surface of the outer sleeve when the inner sleeve is connected with the outer sleeve.

5. The tool for machining the bearing through-flow channel according to claim 4, wherein a first positioning step is arranged on the inner wall of the middle hole, a second positioning step is arranged at the lower end of the inner sleeve, and the second positioning step is abutted against the second positioning step after the inner sleeve is installed in the middle hole.

6. The tooling for processing a bearing through-flow channel according to any one of claims 1 to 5, wherein the inner sleeve is provided with at least two mounting holes, the mounting holes are uniformly distributed around the circumferential direction of the inner sleeve, and the guide sleeve is detachably connected to the mounting holes.

7. The tooling for machining a bearing through-flow channel according to any one of claims 1 to 5, wherein a weight reducing hole is provided in a central position of the inner sleeve.