CN212770840U

CN212770840U - Gear shaft quenching system

Info

Publication number: CN212770840U
Application number: CN202020155789.9U
Authority: CN
Inventors: 潘志进
Original assignee: Nantong Zhonglv Gear Co ltd
Current assignee: Nantong Zhonglv Gear Co ltd
Priority date: 2020-02-08
Filing date: 2020-02-08
Publication date: 2021-03-23
Anticipated expiration: 2030-02-08

Abstract

The utility model relates to a gear shaft quenching system, which comprises a shell, a cooling mechanism, a quenching mechanism and a blanking mechanism, wherein the quenching mechanism is arranged above the blanking mechanism, and the cooling mechanism is arranged below the blanking mechanism; the blanking mechanism comprises a shaft sleeve fixedly connected with the shell and a shaft core arranged in the shaft sleeve, the shaft sleeve and the shaft core are both vertically arranged hollow structures, the outer end face of the shaft core is movably hinged with a connecting rod, a clamping group is arranged above the shaft core, and the shaft core drives the clamping group to support or blank the toothed shaft along with the up-and-down action of the connecting rod; the cooling mechanism comprises a quenching liquid tank, a cooling water tank and a circulating pipe, wherein the cooling water tank is internally provided with a cooling pipe communicated with the inlet end of the circulating pipe and the outlet end of the quenching liquid tank, the outlet end of the circulating pipe is communicated with the inlet end of the quenching liquid tank, and the circulating pipe is provided with an oil well pump. The utility model has the advantages of as follows: the gear shaft is rapidly fed, so that the gear shaft is rapidly cooled, and the quenching effect is improved.

Description

Gear shaft quenching system

The technical field is as follows:

the utility model belongs to the gear shaft processing field, concretely relates to gear shaft quenching system.

Background art:

quenching is a metal heat treatment process in which the toothed shaft is heated to a certain proper temperature and kept for a period of time and then rapidly cooled in a quenching medium, and the quenching can improve the hardness and the wear resistance of the toothed shaft. Currently, when the gear shaft is quenched, high-frequency quenching is usually adopted, and the gear shaft is placed in an inductor, wherein the inductor is a heating copper pipe which inputs medium-frequency or high-frequency alternating current (1000-. The alternating magnetic field is generated to generate induced current with the same frequency in the workpiece, the induced current is non-uniform in distribution on the workpiece, strong on the surface and weak in the inner part, and is close to 0 in the center part, the surface of the workpiece can be rapidly heated by utilizing the skin effect, the temperature of the inner surface is raised to 800-.

When the existing gear shaft is quenched, a clamping mechanism is additionally arranged outside the gear shaft, the gear shaft is moved into a heating copper pipe through the clamping mechanism, and then the gear shaft is manually taken down and placed into a quenching liquid box for cooling, so that the quenching device has the following defects: 1. The high-frequency quenching heating temperature is extremely high, the manual unloading is dangerous, a certain time is generated during the manual unloading, the high temperature on the surface of the gear shaft is gradually dissipated, and then the quenching liquid is cooled, so that the quenching effect is reduced; 2. More tooth shafts after high-temperature heating fall into the quenching liquid box, the temperature of the quenching liquid box gradually rises, and the cooling performance of the tooth shafts is reduced, so that the quenching effect is reduced.

The utility model has the following contents:

the utility model aims at overcoming the above insufficiency, providing a pinion quenching system, making the fast unloading of pinion to realize the quick cooling of pinion, improve the quenching effect.

The purpose of the utility model is realized through the following technical scheme: a gear shaft quenching system comprises a shell, a cooling mechanism, a quenching mechanism and a blanking mechanism, wherein the quenching mechanism is arranged above the blanking mechanism, and the cooling mechanism is arranged below the blanking mechanism;

the quenching mechanism comprises an electric box arranged on the shell and a heating copper pipe connected with the electric box, two ends of the heating copper pipe are connected with the electric box, and the heating copper pipe is vertically and annularly coiled to form a cavity with a tooth containing shaft vertically arranged in the center;

the blanking mechanism comprises a shaft sleeve fixedly connected with the shell and a shaft core arranged in the shaft sleeve, the shaft sleeve and the shaft core are of a vertically-arranged hollow structure, the shaft sleeve and the shaft core are coaxially arranged, the outer end face of the shaft core is movably hinged with a connecting rod, the connecting rod comprises a first connecting rod part, a second connecting rod part and a handle part which are integrally formed, one end of the first connecting rod part is movably hinged with the shaft core, the joint of the other end of the first connecting rod part and the second connecting rod part is movably hinged with the shell, the other end of the second connecting rod part is connected with the handle part, the second connecting rod part is inclined to the handle part and the first connecting rod part, a clamping group is arranged above the shaft core, and the shaft core drives the clamping group to support or blank the gear shaft along with the up-;

the cooling mechanism comprises a quenching liquid tank, a cooling water tank and a circulating pipe, wherein the cooling water tank is internally provided with a cooling pipe communicated with the inlet end of the circulating pipe and the outlet end of the quenching liquid tank, the outlet end of the circulating pipe is communicated with the inlet end of the quenching liquid tank, the circulating pipe is provided with an oil well pump, the cooling water tank is provided with a water inlet pipe and a water outlet pipe, and the water inlet pipe is provided with a water pump.

The utility model discloses a further improvement lies in: the centre gripping group includes and arranges two swing arms in the axle sleeve in, and the lower extreme of two swing arms passes through axis of rotation swing joint with the inner wall of axle sleeve respectively, and two swing arms are vertical setting respectively in the both sides position of axle core, and the lower extreme of swing arm and the upper end both sides meshing setting of axle core, the upper end of swing arm all inwards extends there is the layer board.

The utility model discloses a further improvement lies in: the upper end both sides of axle core are inwards sunken respectively and are had the step, are equipped with rack segment a along the extending direction of step on the terminal surface of step, and the lower extreme of swing arm has the scallop simultaneously, and the central point that the scallop was arranged in to the axis of rotation puts, has the rack segment b with rack segment an intermeshing on the arc surface of scallop.

The utility model discloses a further improvement lies in: the below position of swing arm up end is arranged in to the layer board, and the position that lies in the layer board top on the swing arm has the arc, and the arc symmetry of two swing arms sets up, and the terminal surface of arc has the arc to the swing arm sunken, and the arc of two arcs sets up with one heart.

The utility model discloses a further improvement lies in: the upper end of axle sleeve has the feed inlet along the inner wall extension, and the feed inlet corresponds the setting from top to bottom with the cavity, and feed inlet and the coaxial setting of axle core simultaneously.

The utility model discloses a further improvement lies in: the lower end of the shaft sleeve is a closed surface, and the lower end of the shaft core penetrates through the center of the shaft sleeve.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses a gear shaft is through quenching mechanism quenching back, through waveing the connecting rod from top to bottom, makes the gear shaft fall into the axle core through centre gripping group fast, falls into the interior realization quick cooling of quenching liquid, improves the quenching effect.

2. The quenching liquid in the quenching liquid tank plays a role in cooling the heated gear shaft, the quenching liquid tank is communicated with the cooling water tank and realizes the circulating cooling of the quenching liquid in the quenching liquid tank through the oil pump and the circulating pipe, and the cooling water tank adopts a water-cooled cooling mode to realize the rapid cooling of the quenching liquid in the cooling pipe.

Description of the drawings:

fig. 1 is a schematic structural diagram of a gear shaft quenching system of the utility model.

Fig. 2 is a schematic structural diagram of a cooling mechanism of a gear shaft quenching system of the present invention.

Fig. 3 is a schematic structural diagram of a quenching mechanism of a gear shaft quenching system of the utility model in a quenching state.

Fig. 4 is a schematic structural diagram of a quenching mechanism of a gear shaft quenching system of the present invention in a blanking state.

Fig. 5 is a sectional view taken along line a-a of fig. 3.

Reference numbers in the figures:

1-shell, 2-cooling mechanism, 3-quenching mechanism, 4-blanking mechanism and 5-gear shaft;

21-quenching liquid tank, 22-cooling water tank, 23-circulating pipe, 24-cooling pipe, 25-oil pump, 26-water inlet pipe, 27-water outlet pipe and 28-water pump;

31-an electric box, 32-a heating copper pipe and 33-a cavity;

41-shaft sleeve, 42-shaft core, 43-connecting rod, 431-first connecting rod part, 432-second connecting rod part, 433-handle part, 44-swing arm, 45-rotating shaft, 46-supporting plate, 47-step, 48-rack segment a, 49-sector part, 410-arc surface, 411-rack segment b, 412-feed port, 413-sealing surface, 414-arc plate and 415-arc groove.

The specific implementation mode is as follows:

in order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms indicating orientation or positional relationship, such as those based on the drawings, are only for convenience of description and simplification of description, and do not indicate or imply that the structures or units indicated must have a specific orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise specified or limited, terms such as "connected," "provided," "having," and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, or directly connected, and may be connected through an intermediate medium, and those skilled in the art can understand the basic meaning of the above terms in the present invention according to specific situations.

Fig. 1 and fig. 2 show an embodiment of a gear shaft quenching system of the present invention, which includes a housing 1, a cooling mechanism 2, a quenching mechanism 3, and a blanking mechanism 4, wherein the quenching mechanism 3 is disposed above the blanking mechanism 4, and the cooling mechanism 2 is disposed below the blanking mechanism 4;

the quenching mechanism 3 comprises an electric box 31 arranged on the shell 1 and a heating copper pipe 32 connected with the electric box 31, two ends of the heating copper pipe 32 are connected with the electric box 31, and the heating copper pipe 32 is vertically and annularly coiled to form a cavity 33 with a vertically placed accommodating gear shaft 5 in the center;

the blanking mechanism 4 comprises a shaft sleeve 41 fixedly connected with the shell 1 and a shaft core 42 arranged in the shaft sleeve 41, the shaft sleeve 41 and the shaft core 42 are both of a vertically-arranged hollow structure, the shaft sleeve 41 and the shaft core 42 are coaxially arranged, the outer end surface of the shaft core 42 is movably hinged with a connecting rod 43, the connecting rod 43 comprises a first connecting rod part 431, a second connecting rod part 432 and a handle part 433 which are integrally formed, one end of the first connecting rod part 431 is movably hinged with the shaft core 42, the joint of the other end of the first connecting rod part 431 and the second connecting rod part 432 is movably hinged with the shell 1, the other end of the second connecting rod part 432 is connected with the handle part 433, the second connecting rod part 432 is inclined to the handle part 433 and the first connecting rod part 431, a clamping group is arranged above the shaft core 42, and the shaft core 42 drives the clamping group to support or blank the gear shaft 5 along with the up;

the cooling mechanism 2 comprises a quenching liquid tank 21, a cooling water tank 22 and a circulating pipe 23, wherein a cooling pipe 24 communicated with an inlet end of the circulating pipe 23 and an outlet end of the quenching liquid tank 21 is arranged in the cooling water tank 22, the outlet end of the circulating pipe 23 is communicated with the inlet end of the quenching liquid tank 21, an oil pump 25 is arranged on the circulating pipe 23, a water inlet pipe 26 and a water outlet pipe 27 are arranged on the cooling water tank 22, and a water pump 28 is arranged on the water inlet pipe 26.

The working principle of gear shaft quenching is as follows:

an operator vertically places the gear shaft 5 on the clamping group through the cavity 33 and the feeding hole 412, the heating copper wire 32 heats the outer surface of the gear shaft 5 at a high temperature for 1-2 seconds, the handle part 433 is pressed downwards at the moment, the shaft core 42 moves upwards along with the connecting rod 43 to drive the clamping group to discharge the gear shaft 5, and the gear shaft 5 falls into the quenching liquid tank 21 through the inner shell of the shaft core 42 to be rapidly cooled, so that the gear shaft 5 is quenched.

The utility model discloses a gear shaft 5 is through 3 quenching backs of quenching mechanism, through shaking connecting rod 43 from top to bottom, make gear shaft 5 fall into axle core 42 through the centre gripping group fast, fall into and realize quick cooling in the quenching liquid, improve the quenching effect, quenching liquid case 21 is arranged in unloading mechanism 4 under, quenching liquid in the quenching liquid case 21 plays refrigerated effect to gear shaft 5 after the heating, quenching liquid case 21 and cooling water tank 22 intercommunication and through oil-well pump 25, circulating pipe 23 realizes the circulative cooling to the quenching liquid in quenching liquid case 21, cooling water tank 22 adopts water-cooled cooling mode, realize the quick cooling to the quenching liquid in cooling tube 24.

Further, the clamping group comprises two swing arms 44 arranged in the shaft sleeve 41, the lower ends of the two swing arms 44 are movably connected with the inner wall of the shaft sleeve 41 through rotating shafts 45, the two swing arms 44 are vertically arranged on two sides of the shaft core 42, the lower ends of the swing arms 44 are meshed with two sides of the upper end of the shaft core 42, and supporting plates 46 extend inwards from the upper ends of the swing arms 44.

The two sides of the upper end of the shaft core 42 are respectively recessed with steps 47, the end face of the step 47 is provided with a rack segment a48 along the extending direction of the step 47, the lower end of the swing arm 44 is provided with a sector 49, the rotating shaft 45 is arranged at the center position of the sector 49, and the arc surface 410 of the sector 49 is provided with a rack segment b411 which is meshed with the rack segment a 48.

The working principle of the clamping group is as follows:

as shown in fig. 3, which shows a schematic structural diagram of putting the pinion 5 into the clamping group for quenching, when the handle portion 433 of the connecting rod 43 is in a horizontal state, the two swing arms 44 are in a parallel state, an operator can vertically place the pinion 5 on the two support plates 46, the distance between the two support plates 46 in the horizontal state is smaller than the diameter of the pinion 5, at this time, the heating copper pipe 32 on the outer circumference above the pinion 5 heats the outer surface of the pinion, at this time, the operator presses down the handle portion 433 of the connecting rod 43 with the joint between the second connecting rod portion 432 and the shaft sleeve 41 as a hinge point, so as to move the shaft core 42 upward, and during the process that the shaft core 42 moves upward, the rack segment a48 is engaged with the rack segment b411, so as to drive the swing arms 44 to swing outward around the rotating shaft 45, as shown in fig. 4, so that the quenched pinion 5 falls into the quenching liquid tank 21 from the support plates 46 through.

Further, the lower position of swing arm 44 up end is arranged in to layer board 46, as shown in fig. 5, the position that lies in layer board 46 top on swing arm 44 has arc 414, and arc 414 of two swing arms 44 sets up symmetrically, and the terminal surface of arc 414 has the arc groove 415 sunken to swing arm 44, and the arc groove 415 of two arc 414 sets up with one heart, and layer board 46 can supply tooth axle 5 to place, plays the effect of supporting tooth axle 5.

It should be noted that, the utility model discloses a gear shaft 5 is when quenching heating, for guaranteeing the quenching effect of gear shaft 5, gear shaft 5 keeps the determining deviation with the inner wall of feed inlet 412 and arc 414, therefore gear shaft 5 is when cavity 33 falls into axle sleeve 41, can't guarantee gear shaft 5's verticality, can produce certain slope, but feed inlet 412, arc 415 is to gear shaft 5 circumferencial direction's certain limiting displacement, avoid gear shaft 5 to take place too big angle's slope, secondly, when gear shaft 5 whereabouts, axle core 42 is close to gear shaft 5's lower extreme along with the pushing down of handle 433 rebound, even consequently gear shaft 5 has certain tiltability, its lower extreme also can fall into in axle core 42 along with the strutting of two swing arms 44 fast.

Further, a feed inlet 412 extends from the upper end of the shaft sleeve 41 along the inner wall, the feed inlet 412 is vertically arranged corresponding to the cavity 33, and the feed inlet 412 is coaxially arranged with the shaft core 42, so that the feed material just falls into the quenching liquid tank through the inner hole of the shaft core 42 during blanking.

Further, the lower end of the shaft sleeve 41 is a closed surface 413, the lower end of the shaft core 42 penetrates through the center of the shaft sleeve 41, the upper end of the shaft core 42 is arranged and clamped between the two swing arms 44, the swing arms 44 are movably connected with the inner wall of the shaft sleeve 41, and the lower end of the shaft core 42 penetrates through the closed surface 413 of the shaft sleeve 41, so that the shaft core 42 is always kept vertical in the process of lifting up or pressing down the connecting rod 43.

The present invention is not limited to the above-described embodiments, and the description of the embodiments and the description is only illustrative of the principles of the present invention, and various changes and modifications can be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A gear shaft quenching system is characterized in that: the quenching device comprises a shell (1), a cooling mechanism (2), a quenching mechanism (3) and a blanking mechanism (4), wherein the quenching mechanism (3) is arranged above the blanking mechanism (4), and the cooling mechanism (2) is arranged below the blanking mechanism (4);

the quenching mechanism (3) comprises an electric box (31) arranged on the shell (1) and a heating copper pipe (32) connected with the electric box (31), two ends of the heating copper pipe (32) are connected with the electric box (31), and the heating copper pipe (32) is vertically coiled in a ring shape to form a cavity (33) with a vertically arranged tooth-containing shaft (5) at the center;

the blanking mechanism (4) comprises a shaft sleeve (41) fixedly connected with the shell (1) and a shaft core (42) arranged in the shaft sleeve (41), the shaft sleeve (41) and the shaft core (42) are both vertically arranged hollow structures, the shaft sleeve (41) and the shaft core (42) are coaxially arranged, the outer end face of the shaft core (42) is movably hinged with a connecting rod (43), the connecting rod (43) comprises a first connecting rod part (431), a second connecting rod part (432) and a handle part (433) which are integrally formed, one end of the first connecting rod part (431) is movably hinged with the shaft core (42), the joint of the other end of the first connecting rod part (431) and the second connecting rod part (432) is movably hinged with the shell (1), the other end of the second connecting rod part (432) is connected with the handle part (433), and the second connecting rod part (432) is inclined to the handle part (433) and the first connecting rod part (431), a clamping group is arranged above the shaft core (42), and the shaft core (42) drives the clamping group to support or discharge the gear shaft (5) along with the up-and-down motion of the connecting rod (43);

cooling body (2) are including quenching liquid case (21), cooling water tank (22), circulating pipe (23), cooling water tank (22) interior have with entrance point of circulating pipe (23), cooling tube (24) of the exit end intercommunication of quenching liquid case (21), the exit end of circulating pipe (23) and the entrance point intercommunication of quenching liquid case (21), oil-well pump (25) have on circulating pipe (23), inlet tube (26) and outlet pipe (27) have on cooling water tank (22), water pump (28) have on inlet tube (26).

2. The gear shaft quenching system of claim 1, wherein: the centre gripping group including with arrange two swing arms (44) in axle sleeve (41) in, the lower extreme of two swing arms (44) passes through axis of rotation (45) swing joint with the inner wall of axle sleeve (41) respectively, two swing arms (44) are vertical respectively and are set up the both sides position at axle core (42), the lower extreme of swing arm (44) and the upper end both sides meshing setting of axle core (42), the upper end of swing arm (44) all inwards extends has layer board (46).

3. The gear shaft quenching system of claim 2, wherein: the upper end both sides of axle core (42) are inside sunken respectively and are had step (47), be equipped with rack section a (48) along the extending direction of step (47) on the terminal surface of step (47), the lower extreme of swing arm (44) has fan-shaped portion (49) simultaneously, the central point that fan-shaped portion (49) was placed in axis of rotation (45) puts, have rack section b (411) with rack section a (48) intermeshing on arc surface (410) of fan-shaped portion (49).

4. A gear shaft quenching system as claimed in claim 2 or 3, wherein: the lower position of swing arm (44) up end is arranged in layer board (46), the position that lies in layer board (46) top on swing arm (44) has arc (414), arc (414) symmetry setting of two swing arms (44), and the terminal surface of arc (414) has arc (415) to swing arm (44) sunken, and arc (415) of two arc (414) set up with one heart.

5. The gear shaft quenching system of claim 4, wherein: the upper end of the shaft sleeve (41) extends along the inner wall to form a feeding hole (412), the feeding hole (412) and the cavity (33) are arranged up and down correspondingly, and meanwhile, the feeding hole (412) and the shaft core (42) are coaxially arranged.

6. The gear shaft quenching system of claim 5, wherein: the lower end of the shaft sleeve (41) is a closed surface (413), and the lower end of the shaft core (42) penetrates through the center of the shaft sleeve (41) to be arranged.