CN214088578U

CN214088578U - Circulating water tank for heat treatment of bucket teeth of excavator

Info

Publication number: CN214088578U
Application number: CN202023134557.4U
Authority: CN
Inventors: 郝骄骄
Original assignee: Shaanxi Hongying Wear Resistant Technology Co ltd
Current assignee: Shaanxi Hongying Wear Resistant Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-08-31
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to a general mechanical equipment makes technical field, a circulation water tank for heat treatment of excavator bucket tooth is disclosed, it includes open box, install circulating pipe on a lateral wall of box, circulating pipe's the end of intaking all is located the inboard of box with play water end, the immersible pump is installed to circulating pipe's the end of intaking, circulating pipe is the spiral along the edge of box and distributes, be provided with door type frame on the port of box, install hoisting device on the door type frame, it has the thing platform to hang on the hoisting device, it passes through hoisting device business turn over box to put the thing platform. The utility model has the advantages that: the water in the water tank flows circularly through the submersible pump, so that the surrounding of bubbles to the workpiece is reduced when the workpiece is quenched, and the quenching quality of the workpiece is improved.

Description

Circulating water tank for heat treatment of bucket teeth of excavator

Technical Field

The utility model relates to a general mechanical equipment makes technical field, especially a circulation tank for heat treatment of excavator bucket tooth.

Background

Quenching is a heat treatment process in which steel is heated to a temperature above the critical temperature Ac3 (hypoeutectoid steel) or Ac1 (hypereutectoid steel), is kept warm for a period of time to make it fully or partially austenitized, and is then rapidly cooled to a temperature below Ms (or isothermal near Ms) at a cooling rate greater than the critical cooling rate to perform martensite (or bainite) transformation. The solution treatment or heat treatment process with a rapid cooling process of materials such as aluminum alloys, copper alloys, titanium alloys, tempered glass, etc. is also generally called quenching.

The quenching is to convert the super-cooled austenite into martensite or bainite to obtain martensite or bainite structure, and then to improve the rigidity, hardness, wear resistance, fatigue strength, toughness and the like of the steel by tempering at different temperatures, thereby meeting different use requirements of various mechanical parts and tools. The special physical and chemical properties of ferromagnetism, corrosion resistance and the like of certain special steel can be met through quenching.

At present, the bucket teeth of the excavator adopt a forging process, according to the actual production condition, the tail forging temperature of a workpiece is about 900 ℃, the quenching temperature is about 850 ℃, and the water temperature in a quenching water tank is controlled below 40 ℃ to ensure the quenching hardness. At present, after a workpiece enters water at 850 ℃, the water temperature of a conventional water tank can be quickly and continuously increased to reach boiling, and the hardness of the workpiece cannot be ensured. And at the moment, water in the water tank is relatively static, and the workpiece is wrapped by bubbles formed by boiling water during quenching, so that the workpiece cannot be in good contact with a quenching medium, the hardenability of the workpiece cannot be ensured, and the service performance of the bucket teeth of the excavator is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a circulation tank for heat treatment of excavator bucket teeth to solve the problem that the water inside the existing quenching water tank is relatively static.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a circulation tank for heat treatment of excavator bucket tooth, includes open box, install circulating pipe on a lateral wall of box, circulating pipe's the end of intaking all is located with play water end the inboard of box, the immersible pump is installed to circulating pipe's the end of intaking, circulating pipe follows the edge of box is the spiral and distributes, be provided with door type frame on the port of box, install hoisting device on the door type frame, it puts the thing platform to hang on the hoisting device, it passes through to put the thing platform hoisting device business turn over the box.

Preferably, the lifting device comprises a motor fixedly arranged on the door-shaped frame, a wire coil is arranged on a rotating shaft of the motor, a rope is wound on the wire coil, a hook is arranged on the rope, and the object placing table is hung on the hook.

Preferably, the object placing table is provided with four pairs of lifting lugs and two lifting arms, the four pairs of lifting lugs are respectively positioned at four corners of the object placing table, two ends of each lifting arm are respectively hinged to the two pairs of lifting lugs, rotating shafts of the two lifting arms are parallel to each other, and the object placing table is hung on the hook through the lifting arms.

Preferably, the suspension arm is connected with the lifting lug through a pin, a pair of annular grooves are formed in the side wall of the pin, the annular grooves are respectively close to the two ends of the pin, retaining rings are clamped in the annular grooves, and the pin is clamped on the lifting lug through the retaining rings.

Preferably, the suspension arm is arc-shaped, a notch is arranged on the inner side of the arc top of the suspension arm, and the hook is clamped in the notch.

Preferably, a plurality of protrusions are arranged on the object carrying surface of the object placing table, and the protrusions are distributed on the object placing table in a matrix manner.

The utility model has the advantages of it is following:

1. the water in the water tank flows circularly through the submersible pump, so that the surrounding of bubbles to the workpiece is reduced when the workpiece is quenched, and the quenching quality of the workpiece is improved.

2. The water in the water tank exchanges heat with the outside cold air through the spiral pipe, the temperature of the water in the water tank is controlled below 40 ℃, and the quenching hardness is ensured.

3. The spiral pipe increases the heat exchange distance of the high-temperature water outside the box body, prolongs the heat exchange time of the high-temperature water and the cold air outside the box body, and enables the high-temperature water to be fully cooled.

4. The contact area of the workpiece and the object placing table is reduced by the bulges on the object placing table, the contact area of the workpiece and cooling water is increased during quenching, the cooling speed of the workpiece is increased, and the quenching quality is improved.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic view of an installation structure of the suspension arm;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

in the figure, 1-box body, 2-circulating water pipe, 3-door-shaped frame, 4-object placing table, 5-motor, 6-suspension arm, 7-lifting lug, 9-pin, 10-submersible pump, 11-annular groove, 12-retainer ring, 13-notch and 14-bulge.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

As shown in figure 1, the circulating water tank for heat treatment of the bucket teeth of the excavator comprises an open box body 1, a circulating water pipe 2 is installed on one outer side wall of the box body 1, a water inlet end and a water outlet end of the circulating water pipe 2 are both located on the inner side of the box body 1, a submersible pump 10 is installed at the water inlet end of the circulating water pipe 2, water in the water tank flows circularly through the submersible pump 10, when a workpiece is quenched, the surrounding of bubbles to the workpiece is reduced, the quenching quality of the workpiece is improved, the circulating water pipe 2 is distributed spirally along the edge of the box body 1, high-temperature water in the water tank exchanges heat with external cold air through a spiral pipe, the temperature of the water in the water tank is controlled below 40 ℃, the quenching hardness is guaranteed, a door-shaped frame 3 is arranged on a port of the box body 1, a motor 5 is installed on the door-shaped frame 3, a wire coil is installed on a rotating shaft of the motor 5, a rope is wound on the wire coil, and a hook is installed on the rope, put thing platform 4 and hang on the couple, place the work piece of treating quenching on putting thing platform 4, start motor 5 makes the drum pay-off, invades the aquatic with the work piece, has avoided the steam that produces among the quenching process to burn the staff, has guaranteed workman's health, promotes the work piece through motor 5 simultaneously, has reduced workman's intensity of labour.

In this embodiment, as shown in fig. 1 to 4, four pairs of lifting lugs 7 and two suspension arms 6 are arranged on the object placing table 4, the four pairs of lifting lugs 7 are respectively located at four corners of the object placing table 4, two ends of the suspension arms 6 are respectively hinged to the two pairs of lifting lugs 7, rotating shafts of the two suspension arms 6 are parallel to each other, the object placing table 4 is hung on the hook through the suspension arms 6, and the suspension arms 6 are installed through pins 9, so that the suspension arms 6 can be conveniently detached when damaged.

In this embodiment, as shown in fig. 1 to 4, the suspension arm 6 is connected with the lifting lug 7 through a pin 9, a pair of annular grooves 11 is formed in the side wall of the pin 9, the annular grooves 11 are respectively close to two ends of the pin 9, retaining rings 12 are clamped in the annular grooves 11, and the pin 9 is clamped on the lifting lug 7 through the retaining rings 12, so that a safety accident caused by the fact that the pin 9 is separated from the lifting lug due to axial movement in the working process is avoided.

In this embodiment, as shown in fig. 1 to 4, the suspension arm 6 is arc-shaped, a notch 13 is formed inside the arc top of the suspension arm 6, and the hook is clamped in the notch 13, so that the object placing table 4 is prevented from being separated from the workpiece due to the sliding between the hook and the suspension arm 6 during the process of lifting the object placing table 4.

In this embodiment, as shown in fig. 1 to 4, a plurality of protrusions 14 are disposed on the object carrying surface of the object placing table 4, and the protrusions 14 are distributed on the object placing table 4 in a matrix shape, so as to reduce the contact area between the workpiece and the object placing table 4, increase the contact area between the workpiece and the cooling water during quenching, accelerate the cooling speed of the workpiece, and improve the quenching quality.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a circulation tank for heat treatment of excavator bucket tooth, includes open box, its characterized in that: install circulating pipe on a lateral wall of box, circulating pipe's the end of intaking all is located with the play water end the inboard of box, the immersible pump is installed to circulating pipe's the end of intaking, the circulating pipe is followed the edge of box is the spiral and distributes, be provided with door type frame on the port of box, install hoisting device on the door type frame, the last string of hoisting device has the thing platform of putting, it passes through to put the thing platform hoisting device business turn over the box.

2. The circulation tank for heat treatment of excavator teeth as claimed in claim 1, wherein: the lifting device comprises a motor fixedly arranged on the door-shaped frame, a wire coil is arranged on a rotating shaft of the motor, a rope is wound on the wire coil, a hook is arranged on the rope, and the object placing table is hung on the hook.

3. The circulation tank for heat treatment of excavator teeth as claimed in claim 2, wherein: the object placing table is provided with four pairs of lifting lugs and two lifting arms, the four pairs of lifting lugs are respectively located at four corners of the object placing table, two ends of each lifting arm are respectively hinged to the two pairs of lifting lugs, two rotating shafts of the lifting arms are parallel to each other, and the object placing table is hung on the hooks through the lifting arms.

4. The circulation tank for heat treatment of excavator teeth as claimed in claim 3, wherein: the suspension arm is connected with the lifting lug through a pin, a pair of annular grooves are formed in the side wall of the pin, the annular grooves are respectively close to the two ends of the pin, retaining rings are clamped in the annular grooves, and the pin is clamped on the lifting lug through the retaining rings.

5. A circulation tank for thermal treatment of excavator teeth as claimed in claim 3 or 4, wherein: the suspension arm is arc-shaped, a notch is formed in the inner side of the arc top of the suspension arm, and the hook is clamped in the notch.

6. A circulation tank for thermal treatment of excavator teeth as claimed in claim 1 or 2, wherein: the object carrying surface of the object placing table is provided with a plurality of bulges, and the bulges are distributed on the object placing table in a matrix manner.