CN222665939U - A tool for quenching and charging of extra-large bearing rings - Google Patents

Abstract

A tool for quenching and loading of extra-large bearing rings, comprising at least two layers of quenching racks and spacers arranged between any adjacent quenching racks, wherein the spacer is a cylindrical structure with a central through hole, the central through hole being arranged along the axial direction of the cylindrical structure, and a lower support plate and an upper support plate having a diameter greater than the diameter of the cylindrical structure are respectively arranged at the bottom and top of the cylindrical structure, and a limiting groove for installing the lower support plate is respectively arranged on the plate surface of the lower quenching rack corresponding to each spacer, and a positioning end head matching the central through hole on the spacer is fixed in the limiting groove, and the lower support plate of the spacer is limited in the limiting groove by a limiting block and a fastening bolt. In this scheme, a plurality of limiting devices are arranged on the quenching rack in cooperation with the spacer, and the bearing rings are directly stacked on the quenching rack and matched with the limiting devices, so as to have better stability; secondly, the multi-layer quenching rack is used in cooperation with the spacer to increase the amount of rings loaded into the furnace and reduce the production cost.

Description

Frock is used in quenching of super-huge bearing ring charge

Technical Field

The utility model relates to the technical field of bearing heat treatment, in particular to a tool for quenching and charging an oversized bearing ring.

Background

In the prior art, when the heat treatment quenching of the oversized bearing ring is performed in a pit furnace, a charging mode of stacking the bearing rings on a quenching frame is adopted, the bearing rings are charged one by one in a furnace, and then the quenching treatment is performed.

In recent years, along with the market demand of wind power, the size of the bearing ring is gradually increased, and quenching is carried out in the current charging mode, so that the bearing ring is directly stacked on a quenching frame in the current charging mode, a limiting device is not arranged at the central part, the stability is poor, and the defects of low yield and long production period in the current charging mode are overcome, and the cost is relatively increased.

Disclosure of utility model

In order to solve the technical problems, the utility model aims to provide a tool for quenching and charging an oversized bearing ring.

The technical scheme adopted by the utility model is as follows:

The utility model provides an extra-large bearing ring quenches frock for charge, includes the quenching frame of at least two-layer, evenly distributed has a plurality of spacer between the two-layer quenching frame that is arbitrary adjacent, the spacer is a cylinder structure that has central through-hole, and this central through-hole sets up along the axial of cylinder structure, still be equipped with a plurality of ventilation holes along circumference distribution on the outer peripheral face of cylinder structure, be equipped with lower backup pad and the last backup pad that the diameter is greater than cylinder structure diameter respectively at the bottom and the top of this cylinder structure, correspond each spacer on the face of lower floor quenching frame and be equipped with the spacing groove that is used for installing the lower backup pad respectively the fixed locating tip that is equipped with the central through-hole on the spacer in the spacing groove, limit the lower backup pad of spacer in the spacing groove through limit stop and fastening bolt.

As a preferable scheme, at least three spacers are uniformly distributed between any two adjacent quenching frames.

As a preferable scheme, the depth of the limiting groove is the same as the thickness of the lower supporting plate in the spacer bush.

As a preferable scheme, a plurality of vent holes are formed in the outer surface of the cylindrical structure along the circumferential direction, and reinforcing ribs are further arranged on the outer surface of the cylindrical structure between any two adjacent vent holes.

Preferably, each of the ventilation holes is communicated with the central through hole, and the ventilation holes are rectangular in shape.

As a preferable scheme, a limit groove structure matched with the shape of the upper supporting plate in the spacer bush is arranged on the lower plate surface of the upper quenching frame.

As a preferable scheme, the positioning end head is in transition fit with the central through hole.

As a preferable scheme, the positioning end head is arranged at the center of the limiting groove and is integrally formed with the lower-layer quenching frame.

The beneficial effects of the utility model are as follows:

Based on the defects existing in the prior art, the technical scheme provides the tool for quenching and charging the oversized bearing ring, through the optimized structural design, a plurality of spacers are uniformly distributed between any two adjacent layers of quenching frames, each spacer is of a cylindrical structure with a central through hole, a plurality of vent holes distributed along the circumferential direction are formed in the outer peripheral surface of the cylindrical structure, a lower supporting plate and an upper supporting plate with diameters larger than those of the cylindrical structure are respectively arranged at the bottom and the top of the cylindrical structure, a limit groove for installing the lower supporting plate is respectively arranged on the surface of the lower layer of quenching frame corresponding to each spacer, a positioning end matched with the central through hole on each spacer is fixedly arranged in each limit groove, and the lower supporting plates of the spacers are limited in the limit grooves through limit stops and fastening bolts.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of one embodiment of the present utility model;

FIG. 2 is a schematic illustration of the mating of the bump stop and spacer of FIG. 1;

FIG. 3 is a schematic view of the spacer;

fig. 4 is a cross-sectional view of the structure of fig. 3 taken along line A-A.

Reference numeral 1, bearing ring, 2, spacer bush, 21, upper support plate, 22 and lower support

The plate, 23, the vent hole, 24, the reinforcing rib, 3, the quenching frame, 31, the locating end, 4, the fastening bolt, 5 and the limit stop.

Detailed Description

The present utility model will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken to have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. As used in this specification and the claims, the terms "a," "an," "the," or the like do not denote a limitation of quantity, but rather denote the presence of at least one, the terms "first," "second," and "third," as used herein, should not be construed as limiting the order of components, but merely as distinguishing between different components, and the terms "comprising" or "including" and the like denote the presence of an element or article appearing "comprising" or "including" in front of, but not excluding other elements or articles having the same function.

Embodiment 1,

In order to more clearly describe the specific structural composition of the tool for quenching and charging the oversized bearing ring, the embodiment is described with reference to fig. 1-4:

in the embodiment, the tool consists of two layers of quenching frames 3 and spacers 2 arranged between the two layers of quenching frames, and a plurality of spacers are uniformly distributed between any two adjacent layers of quenching frames, for example, three spacers can be arranged, the three spacers are mutually spaced by 120 degrees to form a triangular support, the support stability is better, the spacers 2 are of a cylindrical structure with a central through hole, a plurality of ventilation holes 23 distributed along the circumferential direction are formed in the outer circumferential surface of the cylindrical structure, a lower supporting plate 22 and an upper supporting plate 21 with diameters larger than the diameters of the cylindrical structure are respectively arranged at the bottom and the top of the cylindrical structure, limit grooves for installing the lower supporting plate 22 are respectively arranged on the plate surface of the lower layer of quenching frame 3 corresponding to each spacer 2, and positioning ends 31 matched with the central through holes on the spacers are fixedly arranged in the limit grooves, so that when the lower supporting plate 22 of the spacers is placed into the limit grooves and limited, the positioning ends 31 are just positioned in the cylindrical structure with the central through holes of the spacers 2, then the lower supporting plate 22 are tightly pressed tightly and tightly pressed on the plate surface 5 of the lower supporting plate 4 through the lower supporting plate 4, and the limit bolts 5 are prevented from tightly tightening the lower supporting plate 5 on the lower supporting plate surface 4.

In this embodiment, as shown in fig. 3-4, the spacer bush 2 is provided with eight rectangular ventilation holes 23 uniformly along the circumferential direction on the cylindrical surface of the cylindrical structure, the ventilation holes 23 are respectively communicated with the central through hole, so that the arrangement is beneficial to ventilation and uniform heating while weight reduction, and secondly, the upper end surface and the lower end surface of the spacer bush 2 are two planes, respectively form an upper support plate 21 and a lower support plate 22, the outer diameters of the two support plates exceed the outer diameter of the cylindrical structure to form a step so as to play a supporting role, 8 reinforcing ribs 24 are uniformly distributed on the outer cylindrical surface of the cylindrical structure along the circumferential direction, the upper quenching frame and the ferrule are supported, and the positions of the reinforcing ribs 24 and the ventilation holes 23 are mutually staggered.

In this embodiment, the depth of the limit groove is the same as the thickness of the lower support plate in the spacer bush 2, so that the lower support plate 22 of the spacer bush 2 sinks into the limit groove, and the lower support plate 22 is level with the plate surface of the quenching frame after being placed, so that the limit stop 5 and the fastening bolt 4 can be conveniently installed.

In this embodiment, in order to make whole frock stability better, be equipped with the spacing groove structure with spacer bush upper supporting plate shape assorted on the lower face of upper strata quenching frame equally.

In the embodiment, the positioning end head 31 is in transition fit with the central through hole to realize the fit stability of the spacer bush and the quenching frame, and is arranged at the center of the limiting groove and integrally formed with the lower-layer quenching frame, for example, the positioning end head can be directly cast on the lower-layer quenching frame, the height of the positioning end head is preferably 100-200 mm, the spacer bush is ensured not to incline and shake in the operation process by combining the limiting function of the limiting stop 5 and the fastening bolt 4 through the positioning of the positioning end head, the falling collision and the potential safety hazard of a product caused by the instability of the spacer bush are avoided, and meanwhile, the structure does not influence the taking and placing of the spacer bush, and the operation is convenient.

According to the scheme, the number of the spacer sleeves is flexibly mastered according to the condition of the free area, the spacer sleeves are uniformly distributed along the circumferential direction of the lower quenching frame, the design height of the spacer sleeves is larger than the length of the hanging rod of the lower quenching frame to prevent the hanging rod of the upper quenching frame from pressing the hanging rod of the lower quenching frame, a certain distance from the hanging ring of the upper quenching frame to the furnace cover after assembly is ensured, and the normal and normal use of the furnace cover cannot be influenced by the total height of the spacer sleeves.

Through setting up above-mentioned structure, through on-the-spot verification, this extra-large-size bearing ring quenches with loading frock at use easy operation, nimble taking, convenient and practical can satisfy the user demand completely. By designing the charging tool for quenching, the current situation of one product in one furnace is changed, and especially for large-size ferrules, the idle area is fully utilized, the purpose of one furnace with multiple frames is realized, and the yield increasing effect is remarkable.

Embodiment II,

The structure of the quenching frame and the structure of the limiting device are completely the same as those of the first embodiment, and the space cannot be fully utilized due to the fact that the size of the bearing ring is large, so that the internal structure of the spacer bush can be slightly optimized, for example, a pull rod in the lower spacer bush can be omitted, a plurality of step plates with different heights can be welded in the spacer bush, multiple layers of small bearing parts needing quenching can be placed by matching with the spacer plate, and the space is fully utilized.

The details of this embodiment are not described in the prior art.

It should be noted that while the above describes the utility model in terms of embodiments, many other embodiments of the utility model are possible. Various modifications and variations of this utility model may be apparent to those skilled in the art without departing from the spirit and scope of this utility model, and it is intended to cover in the appended claims all such modifications and variations as fall within the true scope of this utility model.

Claims (8)

1. A quenching and charging tool for an oversized bearing ring is characterized by comprising at least two layers of quenching frames, wherein a plurality of spacers are uniformly distributed between any two adjacent layers of quenching frames, each spacer is of a cylindrical structure with a central through hole, the central through hole is arranged along the axial direction of the cylindrical structure, a plurality of ventilation holes distributed along the circumferential direction are further formed in the outer circumferential surface of the cylindrical structure, a lower supporting plate and an upper supporting plate with diameters larger than the diameter of the cylindrical structure are respectively arranged at the bottom and the top of the cylindrical structure, a limiting groove for installing the lower supporting plate is respectively arranged on the surface of each spacer corresponding to each lower layer of quenching frame, positioning ends matched with the central through holes on the spacers are fixedly arranged in the limiting grooves, and the lower supporting plates of the spacers are limited in the limiting grooves through limiting stops and fastening bolts.

2. The tool for quenching and charging of oversized bearing rings according to claim 1, wherein at least three spacers are uniformly distributed between any two adjacent layers of quenching frames.

3. The tool for quenching and charging of an oversized bearing ring of claim 1, wherein the depth of the limiting groove is the same as the thickness of the lower supporting plate in the spacer bush.

4. The tool for quenching and charging of an oversized bearing ring of claim 1, wherein the outer surface of the cylindrical structure is provided with a plurality of vent holes along the circumferential direction, and reinforcing ribs are further arranged on the outer surface of the cylindrical structure between any two adjacent vent holes.

5. The tool for quenching and charging of an oversized bearing ring of claim 1, wherein any one of the vent holes is respectively communicated with the central through hole, and the vent holes are rectangular in shape.

6. The tool for quenching and charging of the oversized bearing ring of claim 1, wherein the lower plate surface of the quenching frame of the upper layer is provided with a limit groove structure matched with the shape of the upper supporting plate of the spacer bush.

7. The tool for quenching and charging of an oversized bearing ring of claim 1, wherein the locating end head is in transition fit with the central through hole.

8. The tool for quenching and charging of an oversized bearing ring of claim 7, wherein the locating end is arranged at the center of the limiting groove and is integrally formed with the lower quenching frame.