CN217895695U

CN217895695U - Thrust wheel duplex position guenching unit

Info

Publication number: CN217895695U
Application number: CN202222148448.0U
Authority: CN
Inventors: 薛焕春; 苏秋麟; 邵瑞
Original assignee: Yongsheng Heavy Industry Co ltd
Current assignee: Yongsheng Heavy Industry Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-11-25
Anticipated expiration: 2032-08-16

Abstract

The utility model relates to a quenching equipment field, concretely relates to thrust wheel duplex position guenching unit. The quenching device comprises a lifting device, an induction heater and a quenching tank, wherein the induction heater is arranged above the quenching tank; the lifting device comprises two telescopic mechanisms, a 'n' -shaped frame, a positioning tray and a driving device, the telescopic mechanisms comprise a rotary drum and a telescopic rod, two spiral guide grooves with opposite rotation directions are arranged on the inner wall of the rotary drum, the adjacent end parts of the two spiral guide grooves are respectively connected, and a strip-shaped lug is arranged on the outer wall of the telescopic rod; the rotary drum is longitudinally arranged, and the telescopic rod is inserted at the upper end of the rotary drum in a manner that the strip-shaped convex block is embedded in the spiral guide groove; the lower ends of the rotary drums of the two telescopic mechanisms are meshed through gears. The utility model provides a thrust wheel double-station quenching device with a balanced and stable structure and a novel lifting device aiming at the defects in the prior art.

Description

Thrust wheel duplex position guenching unit

Technical Field

The utility model relates to a quenching equipment field, concretely relates to thrust wheel duplex position guenching unit.

Background

The thrust wheel is one of four wheels and one belt of a chassis of the crawler-type engineering machine, is mainly applied to bear the weight of large-scale machines such as a bulldozer, an excavator and the like, and enables the crawler to advance along the rolling direction of the thrust wheel. In order to improve the hardness and the wear resistance of the thrust wheel, the thrust wheel needs to be quenched, a quenching device comprises a heating device and a cooling device, and at present, more and more enterprises adopt a double-station quenching device with high working efficiency to operate.

The surface of the thrust wheel is uneven, and the heating of the common annular induction coil can cause different distances between the induction coil and the surface of the thrust wheel, so that the hardness of different parts of the thrust wheel after quenching and cooling is different, and the quality of the thrust wheel product is greatly influenced. Therefore, the induction coil body with the same shape as the thrust wheel can be adopted, and the thrust wheel is conveyed into the induction coil body through the lifting device to be heated.

The conventional double-station quenching device comprises a double-station quenching device with a thrust wheel, wherein a lifting device is arranged on one side of a quenching tank, fixing devices for fixing two workpieces are arranged on the same side of the lifting device, the fixing devices are positioned above the quenching tank, the lifting devices are driven by a lead screw generally, the fixing devices are arranged on one side of a lead screw nut, the lead screw and the lead screw nut are unbalanced in stress, the lead screw nut and the lead screw are seriously abraded, and the lead screw is easy to deform, so that the defect needs to be improved by changing the structure of a product.

SUMMERY OF THE UTILITY MODEL

The utility model provides a thrust wheel double-station quenching device with a novel lifting device, which is stable and balanced in structure, aiming at the defects in the prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a thrust wheel double-station quenching device comprises a lifting device, an induction heater and a quenching tank, wherein the induction heater is arranged above the quenching tank; the lifting device comprises two telescopic mechanisms, a 'n' -shaped frame, a positioning tray and a driving device, the telescopic mechanisms comprise a rotary drum and a telescopic rod, two spiral guide grooves with opposite rotation directions are arranged on the inner wall of the rotary drum, the adjacent end parts of the two spiral guide grooves are respectively connected, and a strip-shaped lug is arranged on the outer wall of the telescopic rod; the rotary drum is longitudinally arranged, and the telescopic rod is inserted at the upper end of the rotary drum in a manner that the strip-shaped convex block is embedded in the spiral guide groove; the lower ends of the rotary drums of the two telescopic mechanisms are meshed through gears, one rotary drum is connected to the driving device, and the other rotary drum is supported on the fixed frame through a bearing; the n-shaped frame is arranged at the upper end of the telescopic rod, two ends of the n-shaped frame are respectively provided with a positioning tray, the center of the positioning tray is provided with a positioning column matched with the size of an inner hole of the supporting wheel, and the positioning tray corresponds to the position of the induction heater; the driving device is connected to the lower end of the rotary drum.

Preferably, the shape and size of the heating cavity of the induction heater are matched with those of the thrust wheel.

Preferably, when the thrust wheel is placed in the heating cavity, a gap of 1mm is formed between the inner wall of the heating cavity and the thrust wheel.

Preferably, the length of the strip-shaped projection is greater than the width of the spiral guide groove.

Preferably, the lifting device further comprises an auxiliary frame, the auxiliary frame comprises a guide plate provided with a through groove matched with the telescopic rod, and the guide plate is arranged at the upper end of the rotary drum.

Preferably, the 'n' -shaped frame and the positioning tray are symmetrically arranged at two sides of the telescopic mechanism.

The utility model has the advantages that:

the utility model discloses a be equipped with two spiral guide slots that revolve to opposite directions on the inner wall of rotary drum, drive arrangement need not the switching-over, just can realize the reciprocating motion of telescopic link, therefore the enterprise need not choose positive and negative rotating electrical machines such as the servo motor that the price is more expensive like driving the lead screw, very big reduction manufacturing and use cost; moreover, one of the rotating drums is driven to rotate, so that the two telescopic rods can be synchronously stretched, the arrangement mode of the two telescopic rods not only avoids the rotation of the telescopic rods, but also enhances the bearing performance of the telescopic mechanism.

The 'n' -shaped frame and the positioning tray are symmetrically arranged on two sides of the telescopic mechanism, so that the stress of the telescopic mechanism is balanced, the stability and the durability of the device are improved, and in addition, the driving device is connected to the lower end of the rotary drum, so that the gravity center of the device is low, and the stability of the device is also favorably kept.

In addition, when the central line of the lower connecting groove connected with the lower ends of the two threaded guide grooves with opposite rotation directions is a horizontal line, the positioning tray is kept still in a time period when the strip-shaped convex blocks slide in the lower connecting groove, the processed thrust wheel can be taken down, and the thrust wheel to be processed is sleeved on the positioning column.

It is obvious, the utility model has the advantages of simple structure is ingenious, steady, durable, manufacturing and use cost are low, are suitable for popularization and application.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a cross-sectional view of the drum of the present invention;

FIG. 3 is a cross-sectional view of another angle of the drum of the present invention;

fig. 4 is a schematic structural view of the telescopic rod of the present invention;

in the figure: 1. a lifting device, 2, an induction heater, 3, a quenching tank,

10. the device comprises a telescopic mechanism, 11 parts of a 'Pi' -shaped frame, 12 parts of a positioning tray, 120 parts of positioning columns, 13 parts of a driving device, 14 parts of gears, 15 parts of bearings, 16 parts of a fixed frame and 17 parts of an auxiliary frame; 100. the rotary drum, 101 telescopic link, a, spiral guide slot, b, bar lug, c, go up the spread groove, d, lower spread groove.

Detailed Description

The principles and features of the present invention will be described with reference to the drawings, which are provided for illustration purposes only and are not intended to limit the scope of the present invention.

As shown in fig. 1 to 4, the thrust wheel double-station quenching device of the embodiment includes a lifting device 1, an induction heater 2 and a quenching tank 3, wherein the induction heater 2 is disposed above the quenching tank 3, and two sides of the lifting device 1 are respectively provided with the quenching tank 3 and the induction heater 2.

The shape and size of the heating cavity of the induction heater 2 are matched with those of the thrust wheel. Preferably, when the thrust wheel is placed in the heating cavity, a gap of 1mm is formed between the inner wall of the heating cavity and the thrust wheel.

The lifting device 1 comprises two telescopic mechanisms 10, a 'n' -shaped frame 11, a positioning tray 12 and a driving device 13. Preferably, the "n" shaped frame 11 and the positioning tray 12 are symmetrically arranged on both sides of the telescopic mechanism 10, so that the stress of the telescopic mechanism 10 is balanced.

The telescopic mechanism 10 comprises a rotary drum 100 and a telescopic rod 101, wherein two spiral guide grooves a with opposite rotation directions are formed in the inner wall of the rotary drum 100, the adjacent end parts of the two spiral guide grooves a are respectively connected, and as shown in fig. 4, a strip-shaped lug b is arranged on the outer wall of the telescopic rod 101; preferably, the length of the strip-shaped projection b is greater than the width of the spiral guide groove a. The rotary drum 100 is longitudinally arranged, and the telescopic rod 101 is inserted at the upper end of the rotary drum 100 in a manner that the strip-shaped convex block b is embedded in the spiral guide groove a; the lower ends of the drums 100 of the two telescopic mechanisms 10 are engaged by a gear 14, one drum 100 is connected to the driving device 13, and the other drum 100 is supported on the fixed frame 16 by a bearing 15, and the bearing 15 is preferably a slewing bearing capable of simultaneously bearing large axial and radial loads and overturning moment.

The n-shaped frame 11 is arranged at the upper end of the telescopic rod 101, two ends of the n-shaped frame 11 are respectively provided with a positioning tray 12, the center of the positioning tray 12 is provided with a positioning column 120 matched with the size of an inner hole of the supporting wheel, and the positioning tray 12 corresponds to the position of the induction heater 2.

Preferably, the lifting device 1 further comprises an auxiliary frame 17, the auxiliary frame 17 comprises a guide plate provided with a through slot matched with the telescopic rod 101, and the guide plate is arranged at the upper end of the rotary drum 100.

The driving device 13 is connected to the lower end of the rotating drum 100, and the driving device 13 may be a motor with a fixed steering direction.

Because the adjacent ends of the two spiral guide grooves a with opposite rotation directions are respectively connected, and the connecting structure comprises an upper connecting groove c and a lower connecting groove d, preferably, as shown in fig. 2 and fig. 3, the central lines of the upper connecting groove c and the lower connecting groove d are horizontal, so that the arrangement is such that when the telescopic rod 101 extends to the longest, the telescopic rod 101 is kept still in the process that the strip-shaped convex block b moves from one end of the upper connecting groove c to the other end, and the thrust wheel is kept in the induction heater 2 in the period of time. When the heating time required by the process is short, the motor can be set to rotate at a constant speed, so that the stay time of the thrust wheel in the induction heater 2 is equal to the time required by the process, the rotating speed of the motor does not need to be adjusted, and the operation or control method of the device can be further simplified.

Of course, when the thrust wheel needs to be heated for a long time, the motor needs to be suspended after the thrust wheel rises into the induction heater 2, and the motor needs to be started again after the preset time is reached.

In the time period that the strip-shaped convex block b slides in the lower connecting groove d, the positioning tray 12 is kept still, the processed thrust wheel can be taken down, the thrust wheel to be processed is sleeved on the positioning column 120, and the action process is matched with the operation process ingeniously.

The utility model discloses a drive arrangement 13 drive rotary drum 100 rotates, because be equipped with two on the inner wall of rotary drum 100 and revolve to opposite spiral guide slot a, the upper end of two telescopic links 101 is connected on "nearly" shape frame 11, makes two telescopic links 101 can not rotate, and bar lug b slides along spiral guide slot a to realize telescopic link 101's flexible. The telescopic link 101 stretches out, drives the thrust wheel on the positioning tray 12 and from the heating chamber that gets into induction heater 2 upwards down, pauses drive arrangement 13 as required, starts drive arrangement 13 again after the heating is accomplished, makes telescopic link 101 shrink, and the thrust wheel gets into and cools down in quenching groove 3, generally holds clear water or salt solution in the quenching groove 3.

The expansion amount of the expansion mechanism 10 can be set to be matched with the liquid level in the quenching tank 3, so that the temperature of the thrust wheel can be reduced to the temperature specified by the process in the descending process after the thrust wheel enters the cooling liquid. Therefore, when the thrust wheel falls to the lowest point and stops moving, the thrust wheel can be taken down and replaced by a thrust wheel to be processed, and the motor does not need to stop running in the process.

The utility model has the advantages of simple structure is ingenious, steady, durable, manufacturing and use cost are low, are suitable for popularization and application.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A thrust wheel double-station quenching device comprises a lifting device (1), an induction heater (2) and a quenching tank (3), wherein the induction heater (2) is arranged above the quenching tank (3), and is characterized in that two sides of the lifting device (1) are respectively provided with the quenching tank (3) and the induction heater (2); the lifting device (1) comprises two telescopic mechanisms (10), a n-shaped frame (11), a positioning tray (12) and a driving device (13), wherein the telescopic mechanisms (10) comprise a rotary drum (100) and a telescopic rod (101), two spiral guide grooves (a) with opposite rotation directions are arranged on the inner wall of the rotary drum (100), the adjacent end parts of the two spiral guide grooves (a) are respectively connected, and a strip-shaped convex block (b) is arranged on the outer wall of the telescopic rod (101); the rotary drum (100) is longitudinally arranged, and the telescopic rod (101) is inserted at the upper end of the rotary drum (100) in a way that the strip-shaped convex block (b) is embedded in the spiral guide groove (a); the lower ends of the rotary drums (100) of the two telescopic mechanisms (10) are meshed through gears (14), one rotary drum (100) is connected to a driving device (13), and the other rotary drum (100) is supported on a fixed frame (16) through a bearing (15); the n-shaped frame (11) is arranged at the upper end of the telescopic rod (101), two ends of the n-shaped frame (11) are respectively provided with a positioning tray (12), the center of the positioning tray (12) is provided with a positioning column (120) matched with the size of an inner hole of the supporting wheel, and the positioning tray (12) corresponds to the induction heater (2); the driving device (13) is connected to the lower end of the drum (100).

2. The double-station bogie quenching device as claimed in claim 1, wherein the shape and size of the heating cavity of the induction heater (2) is matched with the shape and size of the bogie wheel.

3. The double-station thrust wheel quenching device as claimed in claim 2, wherein when the thrust wheel is placed in the heating cavity, a gap of 1mm is formed between the inner wall of the heating cavity and the thrust wheel.

4. The thrust wheel double-station quenching device as claimed in claim 1, wherein the length of the strip-shaped projection (b) is greater than the width of the spiral guide groove (a).

5. The double-station thrust wheel quenching device as claimed in claim 1, wherein the lifting device (1) further comprises an auxiliary frame (17), the auxiliary frame (17) comprises a guide plate provided with a through groove matched with the telescopic rod (101), and the guide plate is arranged at the upper end of the rotary drum (100).

6. The thrust wheel double-station quenching device as claimed in claim 1, wherein the 'n' -shaped frame (11) and the positioning tray (12) are symmetrically arranged at two sides of the telescopic mechanism (10).