CN212806534U

CN212806534U - Bell-type trolley furnace

Info

Publication number: CN212806534U
Application number: CN202021095786.7U
Authority: CN
Inventors: 俞建国; 俞伟; 李向英; 余海燕
Original assignee: Zhejiang Bertley Technology Co ltd
Current assignee: Zhejiang Bertley Technology Co ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-03-26
Anticipated expiration: 2030-06-15

Abstract

The utility model relates to a bell jar type trolley furnace, which comprises a bell jar furnace body, a track fixing frame, a hydraulic lifting device, a round platform trolley and a control system; a hearth with a circular hearth is formed in the bell jar furnace body; the hydraulic lifting device comprises a hydraulic oil cylinder and a sliding block, and the rail fixing frame consists of a positioning column and a guide column which are vertically fixed on the base; the two sliding blocks are respectively and fixedly connected with the two sides of the bell jar furnace body, and the two ends of each sliding block are respectively in sliding fit with the guide posts on the two sides of the sliding block; the circular platform trolley comprises a pedestal, a furnace platform and a rail, wherein the rail is horizontally arranged right below the bell jar furnace body, the lower part of the pedestal is provided with a roller which is in rolling fit with the rail, the upper part of the pedestal is provided with the furnace platform, and the furnace platform form a sealed furnace chamber after entering a chamber opening of the bell jar furnace body. The sealing performance is good, the energy consumption is low, and the heat treatment performance of the workpiece is good.

Description

Bell-type trolley furnace

Technical Field

The utility model relates to a heat treatment device, in particular to a heat treatment furnace.

Background

The conventional heat treatment equipment is mainly a heat treatment furnace of various structures, and a bell jar furnace and a trolley furnace are more commonly used heat treatment furnaces. The existing bell-jar furnace is provided with a hearth in a cylindrical furnace body, the bottom of the hearth is fixed on the bottom surface, and the furnace body needs to be lifted to one side when a workpiece is loaded and unloaded, and the main defect is that the surface temperature of the heat-treated workpiece is reduced quickly, so that the material performance of the heat-treated workpiece is influenced; the existing trolley furnace comprises a cubic furnace body and a trolley, wherein the furnace body is fixed on the bottom surface, a furnace door is arranged on one side of the furnace body, and the trolley is pulled out after the furnace door is lifted to load and unload heat treatment workpieces.

Disclosure of Invention

The utility model aims at solving the defects of the prior bell jar furnace and the trolley furnace and providing the bell jar trolley furnace which has good sealing, low energy consumption and good performance of heat treatment workpieces.

The technical proposal of the utility model comprises a bell jar furnace body, a rail fixing frame, a hydraulic lifting device, a round platform trolley and a control system; a hearth with a circular hearth is formed in the bell jar furnace body; the hydraulic lifting device comprises a hydraulic oil cylinder and a sliding block, and the rail fixing frame consists of a positioning column and a guide column which are vertically fixed on the base; the two sliding blocks are respectively and fixedly connected with the two sides of the bell jar furnace body, and the two ends of each sliding block are respectively in sliding fit with the guide posts on the two sides of the sliding block to drive the bell jar furnace body to lift on the guide posts; the hydraulic cylinder body is fixedly and vertically arranged on the base of the rail fixing frame, the upper end of a piston rod of the hydraulic cylinder is fixedly connected with the sliding block, the lower end of the piston rod is fixedly connected with the center of the upper end face of a piston in the cylinder body, and a piston cavity formed by the lower end face of the piston and the cylinder body is communicated with the hydraulic device; the circular platform trolley comprises a pedestal, a furnace platform and a rail, wherein the rail is horizontally arranged right below the bell jar furnace body, the lower part of the pedestal is provided with a roller which is in rolling fit with the rail, the upper part of the pedestal is provided with the furnace platform, and the furnace platform form a sealed furnace chamber after entering a chamber opening of the bell jar furnace body.

Preferably, a graphite packing gasket is arranged between the bell jar furnace body and the pedestal, so that the bell jar furnace body and the furnace platform are more sealed; the lower side of the bell jar furnace body and the circular truncated cone trolley are respectively provided with a conductive normally open spring contact, when the bell jar furnace body is in sealing fit with the circular truncated cone trolley, the conductive normally open spring contacts of the bell jar furnace body and the circular truncated cone trolley are in contact closure, and a heater in the bell jar furnace body and a heater in the circular truncated cone trolley form a complete conductive loop.

Preferably, the control system is provided with a temperature control device, a hydraulic lifting control device, a round platform trolley in-out control device, a remote operation control device and a remote control receiver, so that the movement of the round platform trolley in the horizontal direction and the vertical movement of the bell jar furnace body can be remotely monitored and controlled.

Compared with the prior art, the utility model beneficial effect adopt bell jar furnace body and round platform truck to constitute bell jar platform truck stove, its sealing performance is good, and the energy consumption is low, work piece thermal treatment performance is good.

Drawings

Fig. 1 is a schematic structural view showing a separation state of the bell jar furnace body and the circular truncated cone trolley.

Fig. 2 is a top view of the bell jar furnace body and the circular platform trolley of the present invention.

Detailed Description

The bell jar type trolley furnace shown in fig. 1 and 2 comprises a bell jar furnace body 1, a rail fixing frame, a hydraulic lifting device, a round platform trolley and a control system; a hearth is arranged below the bell jar furnace body 1, and a hearth with a circular hearth is formed inside the bell jar furnace body 1; the hydraulic lifting device comprises a hydraulic oil cylinder 4 and a sliding block 3, and the rail fixing frame consists of a positioning column and a guide column 2 which are vertically fixed on a base; the two sliding blocks 3 are respectively and fixedly connected with the two sides of the bell jar furnace body 1, and the two ends of each sliding block 3 are respectively in sliding fit with the guide posts 2 on the two sides of the sliding block to drive the bell jar furnace body 1 to lift on the guide posts 2; the hydraulic cylinder 4 is vertically and fixedly arranged on the base of the rail fixing frame, the upper end of a piston rod in the cylinder body is fixedly connected with the sliding block 3, the lower end of the piston rod is fixedly connected with the center of the upper end face of a piston in the cylinder body, the lower end face of the piston is communicated with a piston cavity formed by the cylinder body and a hydraulic device, when the hydraulic device injects hydraulic pressure into the piston cavity, the piston and the piston rod are pushed to ascend, the sliding block 3 drives the bell jar furnace body 1 to ascend on the guide post 2, and when the hydraulic pressure is removed from the piston cavity, the bell jar furnace body; the circular platform trolley comprises a pedestal 5, a furnace platform 6, a driving motor 9 and a rail 7, wherein the rail 7 is horizontally arranged right below the bell jar furnace body 1, the lower part of the pedestal 5 is provided with a roller 8 which is in rolling fit with the rail, the upper part of the pedestal is provided with the furnace platform 6, the furnace platform 6 and the bell jar furnace body 1 form a sealed furnace chamber after entering the chamber opening of the bell jar furnace body 1, heating heat treatment is carried out on a workpiece, after the heat treatment is finished, the bell jar furnace body 1 rises, the circular platform trolley horizontally moves to one side of the bell jar furnace body 1 on the rail 7 to enter a loading and unloading workpiece, the heat insulation performance of the workpiece after the heat treatment is.

A graphite packing gasket is arranged between the bell jar furnace body 1 and the pedestal 5, so that the bell jar furnace body 1 and the furnace platform 6 are more sealed; the lower side of the bell jar furnace body 1 and the circular truncated cone trolley are respectively provided with a conductive normally open spring contact, when the bell jar furnace body 1 is in sealing fit with the circular truncated cone trolley, the conductive normally open spring contacts are contacted and closed, a heater in the bell jar furnace body 1 and a heater in the circular truncated cone trolley form a complete conductive loop, the bell jar furnace body starts to be electrified and heated, and when the bell jar furnace body 1 rises to leave the pedestal 5, the heater in the bell jar furnace body 1 and the heater in the circular truncated cone trolley automatically cut off the power, so that the energy consumption is low.

The control system is provided with a temperature control device, a hydraulic lifting control device, a round platform trolley in-out control device, a remote operation control device and a remote control receiver, and realizes remote supervision and remote control of the movement of the round platform trolley in the horizontal direction and the vertical movement of the bell jar furnace body 1.

The heater in the bell jar furnace body 1 consists of five heating zones, and the heater in the circular platform trolley consists of the bottom of the heating element which is spirally arranged on the furnace platform 6, so that the inner cavity of the furnace chamber is uniformly heated, no dead angle and low heat loss are caused during heating in heat treatment, and the heat treatment effect is improved.

Claims

1. A bell jar type trolley furnace is characterized in that: comprises a bell jar furnace body (1), a rail fixing frame, a hydraulic lifting device, a circular truncated cone trolley and a control system; a hearth is arranged below the bell jar body (1), and a hearth with a circular hearth is formed inside the bell jar body (1); the hydraulic lifting device comprises a hydraulic oil cylinder (4) and a sliding block (3), and the rail fixing frame consists of a positioning column and a guide column (2) which are vertically fixed on the base; the two sliding blocks (3) are respectively and fixedly connected with the two sides of the bell jar body (1), and the two ends of each sliding block (3) are respectively in sliding fit with the guide posts (2) on the two sides of the sliding block to drive the bell jar body (1) to lift on the guide posts (2); the cylinder body of the hydraulic oil cylinder (4) is vertically and fixedly arranged on the base of the rail fixing frame, the upper end of a piston rod in the cylinder body is fixedly connected with the sliding block (3), the lower end of the piston rod is fixedly connected with the center of the upper end face of a piston in the cylinder body, and a piston cavity formed by the lower end face of the piston and the cylinder body is communicated with the hydraulic device; the circular truncated cone trolley comprises a pedestal (5), a furnace platform (6), a driving motor (9) and a rail (7), wherein the rail (7) is horizontally arranged under the bell jar furnace body (1), the lower part of the pedestal (5) is provided with a roller (8) which is in rolling fit with the rail (7), the upper part of the pedestal is provided with the furnace platform (6), and the furnace platform (6) and the bell jar furnace body (1) form a sealed hearth after entering a hearth opening of the bell jar furnace body (1).

2. The bell jar type car still of claim 1, wherein: a graphite packing gasket is arranged between the bell jar body (1) and the pedestal (5), so that the bell jar body (1) and the furnace platform (6) are sealed; the lower side of the bell jar furnace body (1) and the circular truncated cone trolley are respectively provided with a conductive normally open spring contact, when the bell jar furnace body (1) is in sealing fit with the circular truncated cone trolley, the conductive normally open spring contacts of the bell jar furnace body and the circular truncated cone trolley are contacted and closed, and a heater in the bell jar furnace body (1) and a heater in the circular truncated cone trolley form a complete conductive loop.

3. The bell jar type car still according to claim 1 or 2, wherein: the control system is provided with a temperature control device, a hydraulic lifting control device, a round platform trolley in-out control device, a remote operation control device and a remote control receiver, and realizes remote supervision and remote control of the movement of the round platform trolley in the horizontal direction and the vertical movement of the bell jar furnace body (1).