Heat treatment hanger

Abstract

A heat treatment hanger comprises a pair of L-shaped end plates, rectangular sleeves are arranged on the inner walls of the L-shaped end plates, U-shaped grooves are formed in the upper side and the lower side of each rectangular sleeve, a middle column penetrates through the rectangular sleeves, a plurality of screws are arranged on the middle column in an upward extending mode, nuts are arranged on the screws, and the rectangular sleeves are fixed to the middle column through the nuts. Each pair of screws is sleeved with a concave piece, and a plurality of placing rods are arranged on the vertical section of each concave piece. The middle column is arranged in the rectangular sleeve in a penetrating mode, the middle column can be fixed conveniently, the parts are made of tungsten steel, the steel material has the high-temperature-resistant characteristic, and the characteristic that deformation does not occur when the temperature is high is achieved. And meanwhile, through the provided concave part and the containing rod on the concave part, the shovel tooth type tools can be positioned through the containing rod, so that a large gap is reserved between workpieces, heat radiation is facilitated, air circulation can be conducted, and the cooling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting processing, in particular to a heat treatment rack. Background Art

[0002] After the casting is completed, in order to further strengthen it, it is often subjected to heat treatment. Heat treatment can release the stress inside the workpiece during the casting process, and some internal defects can be compensated by heat treatment. At present, workpieces such as shovel teeth are usually stacked together for heat treatment. In this way, the workpieces at different positions are heated to different degrees during heating, and there is also a problem of slow cooling speed during natural cooling. Utility Model Content

[0003] The utility model provides a heat treatment rack to solve the above-mentioned deficiencies of the prior art. The heating effect of the workpiece can be ensured by hanging, and heat dissipation is convenient, so the utility model has strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0005] A heat treatment rack includes a pair of L-shaped end plates, the inner wall of the L-shaped end plate is provided with a rectangular sleeve, the upper and lower sides of the rectangular sleeve are provided with U-shaped grooves, a middle column is passed through the rectangular sleeve, and a plurality of screws are provided on the middle column extending upward, and nuts are provided on the screws, and the rectangular sleeve is fixed to the middle column through the nuts. A concave piece is provided on each pair of screws, and a plurality of placement rods are provided on the vertical section of the concave piece. The middle column passed through the rectangular sleeve is convenient for fixing the middle column, and the above-mentioned components are made of tungsten steel, which is a steel material with high temperature resistance and no deformation at high temperatures. At the same time, through the provided concave piece and the placement rod thereon, the shovel tooth tools can be positioned through the placement rod, thereby leaving a larger gap between the workpieces, thereby facilitating the radiation of heat, and also allowing air circulation, thereby improving the cooling efficiency.

[0006] Furthermore, a plurality of ribs are provided on the L-shaped end plate to improve the structural strength of the L-shaped end plate.

[0007] Furthermore, the L-shaped end plate is provided with a pair of vertical sleeves extending downward, a movable upper plate is installed at the lower end of the vertical sleeve, a guide rod is inserted into the vertical sleeve, a lower plate is provided at the lower end of the guide rod, support rods are installed at both ends of the lower plate, a bottom plate is installed at the lower end of the support rod, a rotating head is rotatably provided on the lower plate, an adjusting screw rod is provided at the upper end of the rotating head, and the adjusting screw rod is provided on the movable upper plate. The adjustment screw rod can be used to adjust the transition of the middle column, so as to facilitate adjustment according to the internal height of the furnace body, thereby expanding the scope of application.

[0008] Furthermore, a pad is provided on the outer wall of the vertical section of the concave part, and a through plate is provided on the upper end of the pad, and an L-shaped plate is sleeved on the through plate. A U-shaped vertical groove is opened on the vertical section of the L-shaped plate, and the lower end of the U-shaped vertical groove is open. The placement rod is passed through the U-shaped vertical groove. The pad made of refractory materials such as magnesium oxide and other ceramic materials plays a protective role for the concave part, and also prevents the workpiece from directly contacting the outer wall of the concave part, thereby causing the problem of adhesion after heating, and the outer side of the workpiece can be limited by the L-shaped plate, thereby improving the safety during heating or transfer.

[0009] Furthermore, a baffle is provided on one side of the pad, which can prevent the workpiece from rotating and allow the workpiece to be placed horizontally on the placement rod. In this way, the number of placed workpieces can be increased and the stability of the limit can be improved.

[0010] The advantages of the above technical solution are:

[0011] The utility model can limit the position of the workpiece when the workpiece is heat treated, thereby ensuring the heating uniformity during the heat treatment and improving the cooling rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0013] Figure 1 The three-dimensional structure of one embodiment is shown Figure 1 .

[0014] Figure 2 The three-dimensional structure of one embodiment is shown Figure 2 .

[0015] Figure 3 An enlarged view of A is shown. DETAILED DESCRIPTION

[0016] like Figure 1~Figure 3 As shown, a heat treatment rack comprises a pair of L-shaped end plates 1, on which a plurality of ribs 10 are arranged. A rectangular sleeve 11 is arranged on the inner wall of the L-shaped end plate 1, and a U-shaped groove 12 is opened on the upper and lower sides of the rectangular sleeve 11. A middle column 3 is inserted into the rectangular sleeve 11, and a plurality of screw rods 30 are extended upwardly from the middle column 3, and a nut is arranged on the screw rod 30. The rectangular sleeve 11 is fixed to the middle column 3 through the nut. A concave piece 5 is sleeved on each pair of screw rods 30, and a plurality of placement rods 51 are arranged on the vertical section of the concave piece 5. A pad 50 is arranged on the outer wall of the vertical section of the concave piece 5, and a baffle is arranged on one side of the pad 50. A through plate 52 is arranged on the upper end of the pad 50, and an L-shaped plate 53 is sleeved on the through plate 52. A U-shaped vertical groove 54 is opened on the vertical section of the L-shaped plate 53, and the lower end of the U-shaped vertical groove 54 is open, and the placement rod 51 is inserted into the U-shaped vertical groove 54.

[0017] The L-shaped end plate 1 is downwardly extended to be provided with a pair of vertical sleeves 4, the lower end of the vertical sleeves 4 is installed with a movable upper plate 40, a guide rod 42 is passed through the vertical sleeves 4, the lower end of the guide rod 42 is provided with a lower plate 44, both ends of the lower plate 44 are installed with support rods 45, the lower end of the support rod 45 is installed with a bottom plate 46, a rotating head 43 is rotatably provided on the lower plate 44, the upper end of the rotating head 43 is provided with an adjusting screw 41, and the adjusting screw 41 is provided on the movable upper plate 40.

[0018] When adjusting the height inside the furnace body, the operator can rotate the rotating head 43 to rotate the adjusting screw 41. The rotation of the adjusting screw 41 will drive the movable upper plate 40 to move up and down along the axial direction of the guide rod 42, and the movement of the movable upper plate 40 will increase or decrease the distance between the movable upper plate 40 and the lower plate 44, thereby achieving the purpose of adjusting the height of the center column 3.

[0019] When placing the workpiece, the operator places the workpiece horizontally on the placing rod 51, and inserts the placing rod 51 into the hole of the shovel-tooth workpiece during placement. After the placement is completed, one end of the workpiece is limited by the baffle plate, and then the operator puts the L-shaped plate 53 on the placing rod 51, and inserts the through plate 52 into the upper end of the L-shaped plate 53, and then performs heat treatment operation on the workpiece. After the heat treatment is completed, the workpiece is dragged out, and then the workpiece is cooled.

[0020] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is also intended to include these modifications and variations.

Claims

1. A heat treatment rack, characterized in that: It comprises a pair of L-shaped end plates (1), the inner wall of the L-shaped end plates (1) is provided with a rectangular sleeve (11), and the upper and lower sides of the rectangular sleeve (11) are provided with U-shaped grooves (12); A middle column (3) is inserted into the rectangular sleeve (11), and a plurality of screw rods (30) are provided on the middle column (3) so as to extend upwards. Nuts are provided on the screw rods (30), and the rectangular sleeve (11) is fixed to the middle column (3) by means of the nuts. A concave piece (5) is sleeved on each pair of screw rods (30), and a plurality of placement rods (51) are provided on the vertical section of the concave piece (5).

2. The heat treatment rack according to claim 1, characterized in that: A plurality of ribs (10) are provided on the L-shaped end plate (1).

3. The heat treatment rack according to claim 1, characterized in that: The L-shaped end plate (1) is provided with a pair of vertical sleeves (4) extending downward, a movable upper plate (40) is installed at the lower end of the vertical sleeve (4), a guide rod (42) is inserted into the vertical sleeve (4), a lower plate (44) is provided at the lower end of the guide rod (42), support rods (45) are installed at both ends of the lower plate (44), a bottom plate (46) is installed at the lower end of the support rod (45), a rotating head (43) is rotatably provided on the lower plate (44), an adjusting screw rod (41) is provided at the upper end of the rotating head (43), and the adjusting screw rod (41) is arranged on the movable upper plate (40).

4. The heat treatment rack according to claim 1, characterized in that: A backing plate (50) is provided on the outer wall of the vertical section of the concave member (5), a through plate (52) is provided on the upper end of the backing plate (50), an L-shaped plate (53) is sleeved on the through plate (52), a U-shaped vertical groove (54) is provided on the vertical section of the L-shaped plate (53), the lower end of the U-shaped vertical groove (54) is open, and the placement rod (51) is inserted into the U-shaped vertical groove (54).

5. The heat treatment rack according to claim 4, characterized in that: A baffle is provided on one side of the backing plate (50).

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