Speed reducer gear surface quenching device

Abstract

The utility model discloses a speed reducer gear surface quenching device which comprises a quenching pool, and a supporting frame and a placing frame are arranged on the quenching pool. The placing rack comprises a main frame, two vertical material racks are arranged on a bottom plate of the main frame, and each vertical material rack is formed by assembling a plurality of material rack units up and down; each material frame unit comprises a connecting column and a supporting disc, and a rotating mechanism and a lifting mechanism are installed on a supporting frame. Drying mechanisms are installed on the two sides of the supporting frame and comprise connecting pipes and vertical pipes, a plurality of vertical air openings are formed in the inner sides of the vertical pipes, and the upper ends and the lower ends of the vertical pipes are blocked; according to the quenching device, the vertical material frames on the two sides can be correspondingly assembled according to the number of the speed reducer gears needing to be quenched, the speed reducer gears are stacked at intervals in the vertical direction, space is fully utilized, and efficient quenching is achieved; the vertical material frame and the speed reducer gears are driven by the rotating motor to rotate, the vertical pipes on the two sides are matched, the upper faces and the lower faces of all the speed reducer gears can be rapidly dried at the same time, and the drying efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of gear machining of speed reducer belongs to the field of gear machining of speed reducer, specifically relates to a gear surface quenching device of speed reducer. BACKGROUND

[0002] Gear of speed reducer is the key component in speed reducer, mainly used for realizing the reduction of rotational speed and the increase of torque, gear of speed reducer realizes transmission, rotational speed regulation and torque amplification through the meshing of gear, and satisfies the working demand of mechanical equipment.

[0003] Gear quenching of speed reducer is a kind of heat treatment process, and the main purpose of quenching is to improve the hardness, wear resistance and carrying capacity of gear, a high-hardness hardened layer is formed on the gear surface by heating and rapid cooling treatment, so as to improve the wear resistance and durability of gear.

[0004] At present, after the quenching of gear of speed reducer, a large amount of cooling liquid will be left on the gear surface, which is not conducive to drying for the next process, in order to solve the technical problem, the patent document with publication number CN219793038U discloses a machining quenching equipment for gear of speed reducer, which places the gear of speed reducer on the bearing mechanism of support frame, drives the support frame and bearing mechanism to lift in and out of the quenching tank through the height control assembly, dries one side of the gear of speed reducer downward through the air drying assembly, and then the support frame is turned over by the turning mechanism to dry the other side.

[0005] But the above technical scheme has the following defects: 1, the bearing mechanism gear of speed reducer can only be placed vertically, since the vertical thickness of the gear of speed reducer is mostly much smaller than the diameter of the gear, it will occupy a large horizontal space, resulting in a small number of placements in a limited space, and the thickness direction cannot be stacked, and the space is not fully utilized; 2, when drying, one side is dried first, and then the other side is dried by turning over the mechanism, which is low in drying efficiency; 3, although the flow guide hole is arranged, the gear of speed reducer is placed on the bearing plate, and there is still a large contact area, which is not conducive to the full contact of the gear with the quenching cooling liquid. UTILITY MODEL CONTENTS

[0006] The utility model provides a gear surface quenching device of speed reducer, can according to the number of quenching gear of speed reducer, corresponding assembly both sides' vertical material frame, realize the interval stacking of gear of speed reducer in vertical direction, make full use of space, realize efficient quenching, rotate the vertical material frame and gear of speed reducer by rotary motor, cooperate both sides' vertical pipe, can simultaneously dry the upper and lower two sides of all gears of speed reducer, it is high in drying efficiency, to solve the problem raised in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical scheme: a gear surface quenching device of speed reducer, including quenching pool, the quenching pool is equipped with support frame, and is equipped with placing frame through support frame, the placing frame includes main frame, the main frame includes bottom plate, top plate and intermediate connecting plate, two vertical material racks are equipped on the bottom plate, every vertical material rack is assembled from a plurality of material rack units, every material rack unit includes connecting column and support disc, the support frame is equipped with rotating mechanism of driving the placing frame to rotate and elevating mechanism of driving the placing frame to lift, the both sides of support frame are equipped with drying mechanism, the drying mechanism includes the connecting pipe of being fixed on the support frame, one end of the connecting pipe towards inside is fixedly connected with the standpipe, the standpipe towards inside is equipped with a plurality of air ports in vertical direction, the both ends of standpipe are blocked, the other end of connecting pipe is equipped with the connector.

[0008] Preferably, the lifting mechanism includes a second support frame fixed on the support frame, a plurality of telescopic cylinders are fixed on the second support frame, the telescopic rods of the plurality of telescopic cylinders are arranged downward, a connecting shaft is fixed at the top end of the placing rack, and the bottom end of the telescopic rod is rotatably connected with the connecting shaft through a rotary joint.

[0009] Preferably, the rotary joint includes a connecting flange at the top end of the connecting shaft, a flange cover is mounted on the connecting flange, the flange cover is fixedly connected with the connecting flange through a plurality of fastening screws located on the side, the flange cover and the connecting flange form a rotary groove at the center, the bottom end of the telescopic rod is provided with a connecting circular plate, and the connecting circular plate is located in the rotary groove.

[0010] Preferably, the rotating mechanism includes a shaft sleeve mounted on the support frame through a bearing, the outer wall of the connecting shaft is provided with a vertical spline, the shaft sleeve is provided with a key groove corresponding to the spline, the support frame is further provided with a support plate, a rotating motor is fixed on the support plate, a driving gear is fixed on the output shaft of the rotating motor, and the outer wall of the shaft sleeve is provided with a driven gear meshing with the driving gear.

[0011] Preferably, there is a gap between the driven gear and the support frame, a plurality of ball seats are arranged around the center of the bottom surface of the driven gear, a ball groove is arranged on the bottom surface of the ball seat, and a ball is arranged on the lower part of the ball groove and abuts against the top plate of the support frame.

[0012] Preferably, the bottom end of the connecting column is provided with a threaded connector, and the top surface of the support disc is provided with a corresponding threaded groove.

[0013] Preferably, the top of the support disc is provided with a spline limiting block.

[0014] Preferably, the top surface of the support disk is provided with multiple support protrusions around the center, and all the support protrusions are hemispherical structures.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The vertical racks on both sides can be assembled according to the required number of reducer gears to be quenched, so as to realize the vertical stacking of reducer gears, make full use of space, and achieve efficient quenching.

[0017] 2. The vertical rack and reducer gears are rotated by a rotary motor. With the help of the vertical pipes on both sides, the upper and lower surfaces of all the reducer gears can be dried quickly at the same time, resulting in high drying efficiency.

[0018] 3. By setting multiple support protrusions on the support plate, there is a gap between the gear support of the reducer and the support plate. The hemispherical structure further reduces the contact area, which is conducive to full contact with quenching liquid and dry air. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0020] Figure 2 for Figure 1 A magnified structural diagram at point A;

[0021] Figure 3 This is a side view of the vertical tube structure of this utility model;

[0022] Figure 4 This is a cross-sectional view of the rotary joint of this utility model;

[0023] Figure 5 This is a schematic diagram of the material rack unit structure of this utility model;

[0024] Figure 6 This is a top view of the material rack unit of this utility model.

[0025] In the diagram: 1. Quenching tank; 2. Support frame; 3. Main frame; 4. Vertical material rack; 5. Material rack unit; 6. Connecting column; 7. Support plate; 8. Connecting pipe; 9. Vertical pipe; 10. Air outlet; 11. Connector; 12. Second support frame; 13. Multi-stage telescopic cylinder; 14. Multi-stage telescopic rod; 15. Connecting shaft; 16. Connecting flange; 17. Flange cover; 18. Fastening screw; 19. Connecting circular plate; 20. Bushing; 21. Spline; 22. Support plate; 23. Rotary motor; 24. Driving gear; 25. Driven gear; 26. Ball bearing seat; 27. Ball; 28. Threaded connector; 29. ​​Spline limit block; 30. Support protrusion. Detailed Implementation

[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the utility model.

[0027] Please refer to Figures 1-6 The utility model provides a gear surface quenching device of speed reducer, including quenching pool 1, the quenching pool 1 is equipped with support frame 2, and is equipped with the rack for placing through support frame 2, the rack for placing includes main frame 3, the main frame 3 includes bottom plate, top plate and the connecting plate in the middle, the bottom plate is equipped with two vertical material frame 4, and each vertical material frame 4 is assembled from a plurality of rack units 5 upwards and downwards, each rack unit 5 includes connecting column 6 and support disc 7, the support frame 2 is equipped with the rotating mechanism that drives the rack for placing to rotate and the lifting mechanism that drives the rack for placing to lift, the both sides of support frame 2 are equipped with drying mechanism, the drying mechanism includes the connecting pipe 8 fixed on support frame 2, one end of connecting pipe 8 towards the inside is fixedly connected with vertical pipe 9, the vertical pipe towards the inside is equipped with a plurality of vertical air inlet 10, the both ends of vertical pipe 9 are blocked, the other end of connecting pipe 8 is equipped with connector 11, when processing, according to the number of speed reducer gears that need to be quenched, the corresponding number of rack units 5 are assembled to the vertical material frame 4 of both sides, before assembling, the speed reducer gears are placed on the lower support disc 7, after assembling, the main frame 3, vertical material frame 4 are driven to descend by lifting mechanism, all speed reducer gears are immersed in the quenching coolant in quenching pool 1, quenching, when quenching, the lower speed reducer gears are driven to rotate in the quenching coolant by rotating mechanism, and fast quenching is carried out, after finishing, vertical material frame 4 and speed reducer are lifted out of quenching pool 1 by lifting mechanism, connecting pipe 8 is connected to external air supply equipment through connector 11, and then air supply equipment is started, and then air is blown to the inside through the air inlet 10 of vertical pipe 9 of connecting pipe 8, during which, vertical material frame 4 and speed reducer are driven to rotate by rotating mechanism, and the upper and lower surfaces of all speed reducer gears can be dried fast at the same time, and the drying efficiency is high.

[0028] Specifically, the lifting mechanism comprises a second support frame 12 fixed on the support frame 2, a multi-stage telescopic cylinder 13 fixed on the second support frame 12, a multi-stage telescopic rod 14 of the multi-stage telescopic cylinder 13 arranged downward, a connecting shaft 15 fixed at the top end of the placing frame, and the bottom end of the multi-stage telescopic rod 14 rotatably connected with the connecting shaft 15 through a rotary joint. In this embodiment, the multi-stage telescopic cylinder 13 drives the multi-stage telescopic rod 14 to lift, and then drives the connecting shaft 15 to lift, and then drives the main frame 3 and the vertical material frame 4 to lift, so as to complete the quenching of all the reducer gears in the quenching pool 1. The rotary joint avoids the interference between the lifting mechanism and the rotating mechanism.

[0029] Specifically, the rotary joint comprises a connecting flange 16 at the top end of the connecting shaft 15, a flange cover 17 mounted on the connecting flange 16, and a plurality of fastening screws 18 on the side for fixed connection of the flange cover 17 and the connecting flange 16. The flange cover 17 and the connecting flange 16 form a rotary groove at the center, the bottom end of the multi-stage telescopic rod 14 is provided with a connecting circular plate 19, and the connecting circular plate 19 is located in the rotary groove. In this embodiment, all the above-mentioned parts are made of high-strength wear-resistant material, and the rotary groove is filled with lubricating oil to realize the friction of the connecting circular plate 19 when rotating in the rotary groove. The high-strength flange cover 17 and the fastening screw 18 can realize the connection and support of the connecting shaft 15 and the multi-stage telescopic rod 14.

[0030] Specifically, the rotating mechanism comprises a shaft sleeve 20 mounted on the support frame 2 through a bearing, a vertical spline 21 provided on the outer wall of the connecting shaft 15, a key groove corresponding to the spline 21 provided in the shaft sleeve 20, a support plate 22 mounted on the support frame 2, a rotating motor 23 fixed on the support plate 22, a driving gear 24 fixed on the output shaft of the rotating motor 23, and a driven gear 25 provided on the outer wall of the shaft sleeve 20 and engaged with the driving gear 24. In this embodiment, the rotating motor 23 drives the driving gear 24 to rotate, and then drives the driven gear 25 and the shaft sleeve 20 to rotate. Since the key groove in the inner wall of the shaft sleeve 20 and the spline 21 of the connecting shaft 15 are limited in the horizontal plane, the connecting shaft 15 and the reducer gears below are driven to rotate, which is beneficial to the rapid quenching and rapid drying of all the reducer gears.

[0031] Specifically, there is a gap between the driven gear 25 and the support frame 2, a plurality of ball seats 26 are arranged around the center of the bottom surface of the driven gear 25, a ball groove is provided on the bottom surface of the ball seat 26, and a plurality of balls 27 are arranged in the ball groove and abut against the top plate of the support frame 2. In this embodiment, the balls 27 below the ball seats 26 abut against the top surface of the support frame 2, which can support the driven gear 25 and the shaft sleeve 20.

[0032] Specifically, the connecting column 6 bottom end is equipped with a threaded connector 28, and the support disc 7 top surface is equipped with a corresponding threaded slot; in this embodiment, the threaded connector 28 and the threaded slot are matched to quickly assemble and disassemble the two rack units 5.

[0033] Specifically, the support disc 7 top surface is equipped with a spline limiting block 29; in this embodiment, the spline limiting block 29 is clamped in the gear key groove to limit rotation of the gear on the support disc 7.

[0034] Specifically, the support disc 7 top surface is equipped with a plurality of support protrusions 30 around the center, and the support protrusions 30 are all semispherical structures; in this embodiment, the support protrusions 30 are arranged on the support disc 7 to provide a gap between the gear support and the support disc 7, which facilitates full contact with the quenching liquid and dry air, and the semispherical structure further reduces the contact area.

[0035] In order to facilitate understanding of the above technical solutions of the utility model, the working principle or operation mode of the utility model in the actual process is described in detail below.

[0036] Working principle: during processing, the number of gears to be quenched is determined, and the corresponding number of rack units 5 are assembled on both sides of the vertical rack 4; during assembly, the threaded connector 28 below the connecting column 6 of the upper rack unit 5 is threadedly connected to the threaded slot of the support disc 7 above the lower rack unit 5; before assembly, the gears are placed flat on the support protrusions 30 on the lower support disc 7, and the spline limiting block 29 is clamped in the gear key groove to limit rotation of the gear on the support disc 7; after assembly, the connecting shaft 15 is lowered by the multi-stage telescopic cylinder 13, thereby lowering the main frame 3 and the vertical rack 4, and the gears are immersed in the quenching liquid in the quenching tank 1 to perform quenching; during quenching, the driving gear 24 is rotated by the rotating motor 23, thereby rotating the driven gear 25 and the shaft sleeve 20; the key groove on the inner wall of the shaft sleeve 20 and the spline 21 of the connecting shaft 15 are limited in the horizontal plane, thereby rotating the connecting shaft 15 and the gears below in the quenching liquid to perform rapid quenching; after completion, the vertical rack 4 and the gears are raised out of the quenching tank 1 by the lifting mechanism, the connecting pipe 8 is connected to the external air supply equipment through the connector 11, the air supply equipment is started, and then air is blown inwards through the air outlet 10 of the vertical pipe 9 through the connecting pipe 8; during this period, the vertical rack 4 and the gears are rotated by the rotating motor 23, which can simultaneously rapidly dry the upper and lower surfaces of all the gears, and the drying efficiency is high.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for quenching gear surfaces of a reduction gear, comprising a quenching bath (1), characterized in that The quenching tank (1) is provided with a support frame (2), and a placing frame is arranged on the support frame (2); the placing frame comprises a main frame (3), the main frame (3) comprises a bottom plate, a top plate and an intermediate connecting plate, two vertical racks (4) are arranged on the bottom plate, each vertical rack (4) is assembled by a plurality of rack units (5) from top to bottom; each rack unit (5) comprises a connecting column (6) and a supporting disc (7), the support frame (2) is provided with a rotating mechanism for driving the placing frame to rotate and a lifting mechanism for driving the placing frame to lift; the two sides of the support frame (2) are provided with a drying mechanism, the drying mechanism comprises a connecting pipe (8) fixed on the support frame (2), one end of the connecting pipe (8) towards the inside is fixedly connected with a vertical pipe (9), the vertical pipe is provided with a plurality of vertical air outlets (10) towards the inside, the upper and lower ends of the vertical pipe (9) are blocked, and the other end of the connecting pipe (8) is provided with a connecting head (11).

2. A gear surface quenching apparatus for a speed reducer according to claim 1, wherein The lifting mechanism comprises a second support frame (12) fixed on the support frame (2), a plurality of multi-stage telescopic cylinders (13) are fixed on the second support frame (12), the multi-stage telescopic rods (14) of the multi-stage telescopic cylinders (13) are arranged downwards, and the top end of the placing frame is fixedly connected with a connecting shaft (15); the bottom end of the multi-stage telescopic rod (14) is rotatably connected with the connecting shaft (15) through a rotary joint.

3. A gear surface quenching apparatus for a speed reducer according to claim 2, wherein The rotary joint comprises a connecting flange (16) located at the top end of the connecting shaft (15), a flange cover (17) is arranged on the connecting flange (16), the flange cover (17) is fixedly connected with the connecting flange (16) through a plurality of fastening screws (18) located on the side, the flange cover (17) and the connecting flange (16) form a rotating groove at the center, and the bottom end of the multi-stage telescopic rod (14) is provided with a connecting circular plate (19) located in the rotating groove.

4. A gear surface quenching apparatus for a speed reducer according to claim 2, wherein The rotating mechanism comprises a shaft sleeve (20) arranged on the support frame (2) through a bearing, the outer wall of the connecting shaft (15) is provided with a vertical spline (21), the shaft sleeve (20) is provided with a key groove corresponding to the spline (21), the support frame (2) is further provided with a supporting plate (22), the supporting plate (22) is fixedly connected with a rotating motor (23), the output shaft of the rotating motor (23) is fixedly connected with a driving gear (24), and the outer wall of the shaft sleeve (20) is provided with a driven gear (25) meshing with the driving gear (24).

5. A gear surface quenching apparatus for a speed reducer according to claim 4, wherein There is a gap between the driven gear (25) and the support frame (2), a plurality of ball seats (26) are arranged around the bottom surface of the driven gear (25), the bottom surface of the ball seat (26) is provided with a ball groove, and the ball groove is provided with a ball (27) abutting against the top plate of the support frame (2).

6. A gear surface quenching apparatus for a speed reducer according to claim 1, wherein The bottom end of the connecting column (6) is provided with a threaded connecting head (28), and the top surface of the supporting disc (7) is provided with a corresponding threaded groove.

7. A gear surface quenching apparatus for a speed reducer according to claim 1, wherein The top of the supporting disc (7) is provided with a spline limiting block (29).

8. A gear surface quenching apparatus for a speed reducer according to claim 1, wherein The top surface of the support disc (7) is provided with a plurality of support protrusions (30) around the center, and each of the support protrusions (30) is a hemispherical structure.

Images