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CN-121976018-A - Quenching device, quenching system and quenching method for excavator bucket teeth

CN121976018ACN 121976018 ACN121976018 ACN 121976018ACN-121976018-A

Abstract

The invention relates to a quenching device, a quenching system and a quenching method for bucket teeth of an excavator, wherein the quenching device comprises a quenching tank, a frame, a quenching mechanism, a cooling mechanism and a device controller, wherein the controller controls the quenching frame to firstly descend to a first position for external cooling, then descend to a second position to trigger a telescopic water pipe to stretch into the internal cooling, so that internal and external staged accurate cooling is realized, temperature difference is eliminated, cracks are avoided, hardness transition is gentle, and wear resistance is improved. The quenching system comprises two parallel devices and a transfer device, wherein the transfer device is arranged above the two devices in a crossing way and is used for automatically grabbing and transferring quenched excavator bucket teeth, double-station seamless connection operation is realized, and production efficiency and field utilization rate are greatly improved. The quenching method comprises the steps of placing excavator bucket teeth, externally cooling, internally cooling and resetting, and sending a completion signal to a system controller by a device controller. The invention integrates multiple stations and automatic transfer, and forms a high-efficiency automatic production line.

Inventors

  • LI YUSEN
  • YU HAO
  • LIN XIN

Assignees

  • 三明明泉重工有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (10)

  1. 1. A quenching device for excavator teeth, comprising: The quenching tank is used for containing quenching medium; the rack is erected on the quenching tank; The quenching mechanism is arranged on the frame and comprises a quenching frame capable of lifting in the vertical direction and a quenching driving assembly, the output end of the quenching driving assembly is connected with the quenching frame and used for driving the quenching frame to lift in the vertical direction, and the quenching frame is used for bearing excavator bucket teeth and driving the excavator bucket teeth to enter or exit the quenching tank; The cooling mechanism comprises a mounting frame, a telescopic driving assembly and telescopic water pipes, wherein the mounting frame is mounted on two sides of the quenching tank, the telescopic driving assembly is mounted on the mounting frame, the output end of the telescopic driving assembly is connected with the telescopic water pipes and used for driving the water outlets of the telescopic water pipes to move along the horizontal direction so as to cool the inside of the excavator bucket teeth, and the telescopic water pipes are connected with the cooling mechanism through the telescopic water pipes The device controller is in communication connection with the quenching driving assembly and the telescopic driving assembly and is in communication connection with a system controller of the quenching system; When the device controller controls the quenching driving assembly to drive the quenching frame to descend to the second position, the telescopic driving assembly is triggered to drive the telescopic water pipe to extend out to cool the inside of the excavator bucket tooth.
  2. 2. The quench apparatus of an excavator tooth of claim 1 wherein the quench mechanism further comprises a sensing assembly for detecting whether an excavator tooth is in place, the sensing assembly being in communication with the apparatus controller, the apparatus controller controlling the quench drive assembly to drive the quench carriage down to the first position when the sensing assembly detects that an excavator tooth is in place.
  3. 3. The quenching device for excavator teeth of claim 2 wherein the induction assembly comprises an induction rod which is vertically movable through the quenching frame, an elastic member connected between the quenching frame and the induction rod for providing an upward restoring force to the induction rod, and an induction sensor provided on one side of the quenching frame for sensing a change in position of the induction rod.
  4. 4. The quenching device of excavator teeth of claim 1 wherein the quenching mechanism comprises two or more sets of quench units arranged in parallel, each set of quench units comprising the quench frame and the quench drive assembly; the cooling mechanism comprises more than two groups of cooling units which are arranged in parallel, each group of cooling units comprises the telescopic driving assembly and the telescopic water pipe, more than two groups of cooling units are arranged on the mounting frame in parallel, and each group of cooling units corresponds to one group of quenching units.
  5. 5. The quenching device of excavator teeth of claim 4 wherein the quenching mechanism further comprises a lifting plate on which the quenching unit is mounted and a lifting assembly disposed between the frame and the lifting plate, the lifting assembly being adapted to drive the lifting plate to move in a vertical direction to adjust the height of the quenching unit relative to the quench tank.
  6. 6. The quench apparatus of an excavator tooth of claim 1 wherein the cooling mechanism further comprises a horizontal movement assembly connected to the mounting frame for driving the mounting frame in a horizontal direction to adjust the relative position of the mounting frame and the excavator tooth.
  7. 7. A quenching system for excavator teeth, comprising: two quenching devices for excavator teeth according to any one of claims 1 to 6, the two quenching devices being arranged side by side, and And the transfer device is arranged above the two quenching devices in a straddling manner and is used for grabbing quenched excavator bucket teeth and moving to the next station.
  8. 8. A method for quenching an excavator tooth, characterized by being applied to the quenching device of the excavator tooth according to any one of claims 1 to 6, comprising the following steps: S1, placing excavator bucket teeth on the quenching frame; s2, controlling the quenching driving assembly to drive the quenching frame to descend to a first position by the device controller, so that quenching medium in the quenching tank cools the outside of the excavator bucket tooth; S3, the device controller controls the quenching driving assembly to drive the quenching frame to continuously descend to a second position, and triggers the telescopic driving assembly to drive the telescopic water pipe to extend out, so that the inside of the excavator bucket tooth is cooled; And S4, after the inside and outside of the excavator bucket tooth are cooled, the device controller controls the quenching driving assembly to drive the quenching frame to rise to the initial position, and sends a quenching completion signal to the system controller.
  9. 9. The method for quenching the excavator tooth according to claim 8, wherein the step S3 of triggering the cooling mechanism to cool the interior of the excavator tooth comprises the steps of: S31, controlling the telescopic driving assembly to drive the telescopic water pipe to extend along the horizontal direction by the device controller so that a water outlet of the telescopic water pipe extends into the excavator bucket tooth; And S32, controlling the telescopic driving assembly to drive the telescopic water pipe to retract and reset after cooling reaches the preset time.
  10. 10. The method of quenching an excavator tooth of claim 8 wherein the first position is a position in which the excavator tooth is fully immersed in the quenching medium and the second position is a position in which the opening of the excavator tooth is opposite the telescopic water tube outlet of the cooling mechanism and the second position is lower than the first position.

Description

Quenching device, quenching system and quenching method for excavator bucket teeth Technical Field The invention relates to the technical field of excavator bucket tooth machining, in particular to a quenching device, a quenching system and a quenching method for an excavator bucket tooth. Background In the quenching process of the excavator bucket tooth, the traditional process generally only cools the outer surface of the bucket tooth, or the internal cooling is added but is synchronously carried out with the external cooling, so that the internal and external cooling of the bucket tooth is uneven, larger internal and external temperature difference is generated, quenching cracks or uneven hardness distribution is easy to be caused, and the wear resistance and the service life of the bucket tooth are seriously affected. The existing quenching equipment lacks fine control on cooling time sequence and position, and is difficult to realize uniform quenching inside and outside the bucket teeth. Disclosure of Invention Therefore, a quenching device, a quenching system and a quenching method for the excavator bucket teeth are needed to be provided, and the quenching device, the quenching system and the quenching method are used for solving the technical problems that the conventional quenching equipment lacks fine control on cooling time sequence and position and is difficult to realize uniform quenching inside and outside the bucket teeth. In order to achieve the aim, in a first aspect, the invention provides a quenching device for excavator bucket teeth, which comprises a quenching tank, a frame, a quenching mechanism, a cooling mechanism and a device controller, wherein the quenching tank is used for containing quenching media, the frame is erected on the quenching tank, the quenching mechanism is arranged on the frame and comprises a quenching frame capable of ascending and descending in the vertical direction and a quenching driving assembly, the output end of the quenching driving assembly is connected with the quenching frame and used for driving the quenching frame to ascend and descend in the vertical direction, the quenching frame is used for bearing the excavator bucket teeth and driving the excavator bucket teeth to enter or exit the quenching tank, the cooling mechanism comprises a mounting frame, a telescopic driving assembly and telescopic water pipes, the mounting frame is arranged on two sides of the quenching tank, the telescopic driving assembly is arranged on the mounting frame, the output end of the telescopic driving assembly is connected with the telescopic water pipes and used for driving the water outlets of the telescopic water pipes to move in the horizontal direction so as to cool the inside of the excavator bucket teeth, the device controller is in communication connection with the quenching driving assembly and the telescopic driving assembly and is in communication connection with a system controller of the quenching system, wherein when the device controller controls the quenching driving assembly to descend to the first position, the telescopic driving assembly drives the excavator bucket teeth to the cooling assembly to the inside the quenching device, and when the telescopic driving assembly is controlled to descend to the first position, the telescopic driving assembly is triggered to drive the cooling assembly to the excavator bucket to the inside the cooling assembly. Compared with the prior art, the quenching process is divided into two stages by the device controller, namely the outside of the excavator bucket tooth is cooled at the first position, and the inside cooling is started at the second position, so that the internal and external staged accurate cooling of the excavator bucket tooth is realized, the uneven temperature gradient caused by the internal and external simultaneous cooling is avoided, the thermal stress concentration caused by quenching is effectively eliminated, the quenching crack occurrence rate is obviously reduced, the smooth transition from the surface layer to the core part is ensured, and the integral wear resistance and the service life of the excavator bucket tooth are improved. As one embodiment of the invention, the quenching mechanism further comprises an induction component, the induction component is used for detecting whether the excavator bucket tooth is placed in place, the induction component is in communication connection with the controller, and when the induction component detects that the excavator bucket tooth is placed in place, the controller controls the quenching driving component to drive the quenching frame to descend to the first position. As one embodiment of the invention, the induction component comprises an induction rod, an elastic piece and an induction sensor, wherein the induction rod penetrates through the quenching frame in a movable manner along the vertical direction, the elastic piece is connected between the