CN215757517U

CN215757517U - Process device for correcting gear heat treatment deformation

Info

Publication number: CN215757517U
Application number: CN202122326798.7U
Authority: CN
Inventors: 宋卫兵; 王呈祥; 左良玉; 李�杰
Original assignee: Nanjing Jintuo Machinery Co ltd
Current assignee: Nanjing Jintuo Machinery Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-08
Anticipated expiration: 2031-09-24

Abstract

The utility model provides a process device for correcting gear heat treatment deformation, which comprises a bottom plate, wherein a groove is formed in the bottom plate, the bottom end of a limiting piece is positioned in the groove, a step surface is arranged on the wall of the groove, the cross section of the bottom plate is circular, the step surfaces are distributed in a step shape from bottom to top, a limiting groove is also arranged on the bottom plate, the limiting groove is positioned right above the groove and communicated with the groove, and the diameter of the limiting groove is larger than that of the groove; the roof is installed connecting rod and locating part on it, locating part threaded connection on the connecting rod, threaded connection has the connecting rod on the locating part, and the connecting rod passes the roof and extends to the roof top, is equipped with the arc groove on the connecting rod, and the arch on the fixture block is located the arc inslot on the connecting rod, and the fixture block comprises for the semicircle block of L shape by two cross-sections, and the fixture block joint is at the connecting rod outer wall, and threaded connection has the screw thread apron on the fixture block, and the gear housing is established on the locating part.

Description

Process device for correcting gear heat treatment deformation

Technical Field

The utility model belongs to the technical field of heat treatment, and particularly relates to a process device for correcting heat treatment deformation of a gear.

Background

The gear mainly constitutes promptly the steel, it is by carrying out the thermal treatment back, along with the improvement of temperature, the toughness of steel can constantly reduce, can not be heated the influence again for local stress on the gear, will lead to the gear to produce the deformation, the gear is when carrying out thermal treatment, because the rate of heating is too fast, the phenomenon that the intensification is too fast appears in the surface that will lead to the gear, and the improvement of the inside temperature of gear is just relatively slower, the temperature of surface and inside if there is the difference, will lead to the gear to produce the phenomenon of irregular deformation, in actual course of working, produce residual stress, need be with the help of machining tool and auxiliary assembly, effectively avoid residual stress's production.

For example, a publication number of CN208617938U discloses a process device for correcting heat treatment deformation of a gear, which comprises an upper pressing die arranged on a main shaft of a quenching machine tool and a bottom plate arranged on a quenching machine, wherein the upper pressing die and the bottom plate are both disc-shaped, and a plurality of expansion sleeves are circumferentially arranged inside the bottom plate; the bottom of the upper pressing die is fixedly provided with an inner pressing plate through a bolt, the inside of the upper pressing die is longitudinally provided with a through groove, the inside of the through groove is slidably provided with an expansion core, the lower end of the expansion core penetrates through the inner pressing plate and is respectively movably connected with a plurality of expansion sleeves, when the expansion core moves downwards, the expansion sleeves slide outwards and abut against a transmission gear to prevent the transmission gear from shaking, each expansion sleeve is provided with a corresponding positioning pin, the positioning pins can not be used for positioning each expansion sleeve, and can prevent the expansion sleeves from falling off, in order to control the deformation of a tooth shape in a certain range, a quenching press is used for carrying out thermal correction on parts with larger deformation after heat treatment, and the purpose of reducing the deformation can be achieved.

The process device controls the deformation of the gear within a certain range by matching the expansion sleeve and the expansion core, only the deformation of the gear with a certain inner diameter size can be corrected, and the application range is narrow.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a process device for correcting gear heat treatment deformation.

The utility model provides the following technical scheme:

a process unit for correcting gear heat treatment deformation comprises a bottom plate, a limiting piece, a gear fixing piece and a gear fixing piece, wherein a groove is formed in the bottom plate, the bottom end of the limiting piece is located in the groove, and a step surface is formed in the wall of the groove; the top plate is provided with a connecting rod and a limiting piece, and the limiting piece is in threaded connection with the connecting rod; and the gear is sleeved on the limiting part.

Further, the bottom plate cross-section is circular, and the ladder face is supreme down and is the echelonment and distributes, still is equipped with the spacing groove on the bottom plate, and the spacing groove is located directly over the recess, and spacing groove and recess communicate with each other, and the diameter of spacing groove is greater than the diameter of recess.

Furthermore, a second air hole is formed in the bottom plate and located on two sides of the groove, the second air hole is communicated with the limiting groove, and air grooves convenient to ventilate are further formed in two sides of the limiting groove.

Furthermore, a convex edge used for bearing the gear is arranged on the limiting part, a plurality of air holes I are formed in the convex edge, and an air hole III is formed in the limiting part.

Further, threaded connection has the connecting rod on the locating part, and the connecting rod passes the roof and extends to the roof top, is equipped with the arc groove on the connecting rod, and arch on the fixture block is located the arc groove on the connecting rod, and the fixture block comprises for the semicircle block of L shape two cross-sections, and the fixture block joint is at the connecting rod outer wall, and threaded connection has the apron on the fixture block.

Furthermore, an anti-skid piece is arranged between the top plate and the connecting rod, and the anti-skid piece is fixed on the top plate through a connecting piece.

The utility model has the beneficial effects that:

1. connecting rod and locating part threaded connection, gear internal diameter size change only needs to be changed the locating part and can continue to use, and is with low costs and efficient.

2. The bottom plate is provided with a plurality of stepped surfaces which are convenient for bearing the limiting part, so that the limiting part is prevented from sliding down from the groove.

3. The bottom plate and the limiting part are provided with a plurality of air holes, the convex edges arranged on the limiting part are convenient for bearing the gear, the air holes are symmetrically distributed at the contact positions of the gear and the convex edges, the gear is convenient to uniformly heat at each position, and therefore deformation of the gear is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic front view of the present invention.

Labeled as: 1. a base plate; 2. a first air hole; 3. a top plate; 4. a protrusion; 5. a clamping block; 6. a connecting rod; 7. a threaded cover plate; 8. an anti-slip member; 9. a connecting member; 10. a gear; 11. a convex edge; 12. a second air hole; 13. a groove; 14. a third air hole; 15. a step surface; 16. a limiting member; 17. a limiting groove.

Detailed Description

As shown in fig. 1, a process device for correcting gear heat treatment deformation comprises a bottom plate 1, a groove 13 is arranged on the bottom plate, the bottom end of a limiting piece 16 is positioned in the groove 13, and a step surface 15 is arranged on the groove wall of the groove 13; roof 3 is last to be installed connecting rod 6 and locating part 16, and locating part 16 threaded connection installs anti-skidding piece 8 on connecting rod 6 between roof 3 and the connecting rod 6, and anti-skidding piece 8 passes through connecting piece 9 to be fixed on roof 3.

The cross section of the bottom plate 1 is circular, the stepped surface 15 is distributed in a stepped shape from bottom to top, the bottom plate 1 is further provided with a limiting groove 17, the limiting groove 17 is located right above the groove 13, the limiting groove 17 is communicated with the groove 13, the diameter of the limiting groove 17 is larger than that of the groove 13, the bottom plate 1 is provided with a second air hole 12, the second air hole 12 is located on two sides of the groove 13, the second air hole 12 is communicated with the limiting groove 17, and the two sides of the limiting groove 17 are further provided with air grooves convenient to ventilate.

Be equipped with the recess 13 that the inner wall is the ladder face on bottom plate 1, a locating part 16 for supporting different diameter sizes, the diameter of protruding edge 11 diminishes and the grow along with the diameter of locating part 16, it is located limiting groove 17 to ensure protruding edge 11, the locating part 16 size is less, protruding position along 11 shifts up more, gear 10 is located protruding edge 11, in order to facilitate even heating on gear 10 and the protruding contact surface along 11, be equipped with a plurality of gas pockets in gear 10 and protruding contact surface department along 11, gas pocket one 2 communicates with each other with the gas pocket on the limiting groove 17, thereby transmit heat for gear 10, and limiting groove 17 department still is equipped with gas pocket two 12, locating part 16 and gear 10 contact surface department are equipped with gas pocket three 14, be convenient for the gear everywhere be heated evenly, prevent that the gear from warping.

Gear 10, its cover is established on locating part 16, be equipped with the protruding edge 11 that is used for bearing gear 10 on the locating part 16, be equipped with a plurality of gas pockets one 2 on the protruding edge 11, be equipped with gas pocket three 14 in the locating part 16, threaded connection has connecting rod 6 on the locating part 16, connecting rod 6 passes roof 3 and extends to roof 3 top, be equipped with the circular arc groove on the connecting rod 6, arch 4 on the fixture block 5 is located the circular arc inslot on connecting rod 6, fixture block 5 comprises for the semicircle block of L shape by two cross-sections, the fixture block joint is at connecting rod 6 outer wall, threaded connection has apron 7 on the fixture block 5.

Locating part 16 and connecting rod 6 adopt threaded connection's mode, the installation of locating part 16 of being convenient for, dismantle, connecting rod 6 passes ejector pin 3, be equipped with antiskid 8 in the roof 3, guarantee that roof 3 and connecting piece 9 installation are reliable, 5 joints are passed through at 6 tops of connecting rod, prevent that connecting rod 6 from gliding, threaded connection has threaded cover plate 7 on the fixture block 5, fix connecting rod 6 on roof 3, when changing different internal diameter size's gear, direct change locating part 16, and easy operation, practical wide range.

The working principle of the utility model when in use is as follows: with 16 threaded connection of locating part on connecting rod 6, pass 6 covers of connecting rod 6 with gear 10 and establish on locating part 16, pass roof 3 with connecting rod 6, fixture block 5 joint is on connecting rod 6, screwed cover 7 on, place 16 bottoms of locating part in recess 13, if need to change the gear, then turn off locating part 16 and take off gear 10, more new locating part and gear, locating part after the change adopts threaded connection with former connecting rod, application scope is wide and with low costs.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A process unit for correcting gear heat treatment deformation is characterized by comprising,

the bottom plate (1) is provided with a groove (13), the bottom end of the limiting piece (16) is positioned in the groove (13), and the wall of the groove (13) is provided with a step surface (15);

the top plate (3) is provided with a connecting rod (6) and a limiting piece (16), and the limiting piece (16) is in threaded connection with the connecting rod (6);

and the gear (10) is sleeved on the limiting piece (16).

2. The process device for correcting the gear heat treatment deformation according to claim 1, wherein the cross section of the bottom plate (1) is circular, the stepped surface (15) is distributed in a stepped manner from bottom to top, a limiting groove (17) is further formed in the bottom plate (1), the limiting groove (17) is located right above the groove (13), the limiting groove (17) is communicated with the groove (13), and the diameter of the limiting groove (17) is larger than that of the groove (13).

3. The technological device for correcting the gear heat treatment deformation according to claim 1, wherein a second air hole (12) is formed in the bottom plate (1), the second air hole (12) is located on two sides of the groove (13), the second air hole (12) is communicated with the limiting groove (17), and air grooves facilitating air ventilation are further formed in two sides of the limiting groove (17).

4. The process device for correcting the gear heat treatment deformation according to claim 1, wherein the limiting member (16) is provided with a convex edge (11) for bearing the gear (10), the convex edge (11) is provided with a plurality of air holes I (2), and the limiting member (16) is provided with air holes III (14).

5. The process device for correcting gear heat treatment deformation according to claim 1, wherein the limiting member (16) is in threaded connection with a connecting rod (6), the connecting rod (6) penetrates through the top plate (3) and extends above the top plate (3), an arc groove is formed in the connecting rod (6), the protrusion (4) on the fixture block (5) is located in the arc groove on the connecting rod (6), the fixture block (5) is composed of two semicircular blocks with L-shaped sections, the fixture block (5) is clamped on the outer wall of the connecting rod (6), and a threaded cover plate (7) is in threaded connection with the fixture block (5).

6. The process device for correcting the gear heat treatment deformation according to the claim 1, characterized in that an anti-skid member (8) is installed between the top plate (3) and the connecting rod (6), and the anti-skid member (8) is fixed on the top plate (3) through a connecting member (9).