Gear powder metallurgy sintering device

Abstract

The utility model belongs to the technical field of gear sintering, and particularly relates to a gear powder metallurgy sintering device which comprises a sintering box, a combustion cavity is formed in the center in the sintering box, a plurality of sets of mounting plates are arranged in the sintering box, and a plurality of sets of through holes are formed in the positions, corresponding to the lower portions of the mounting plates, of the outer side of the combustion cavity. A first motor and a second motor are fixedly installed at the bottom of the sintering box, supporting rods are fixedly installed at the four corners of the bottom of the sintering box, the first motor is started to drive the guide rods to be rotationally connected, the installation plate moves upwards, the tray moves to the position above the sintering box, and therefore gear blanks can be conveniently placed in the tray; and during heating, a second motor is started to drive a rotating disc to rotate, so that a connecting rod drives a second gear ring to rotate and drives a first gear ring to rotate, a tray drives the gear blank to rotate, and the surface of the gear can be uniformly heated.

Description

Technical Field

[0001] The utility model relates to the technical field of gear sintering, in particular to a gear powder metallurgy sintering device. Background Art

[0002] Powder metallurgy is a metal material preparation technology. It prepares metal products with certain shapes and properties by mixing metal or alloy raw material powders in a certain proportion, pressing them into shape, and then sintering or heat treating them. The main steps of powder metallurgy include powder preparation, powder mixing, molding and sintering. Powder metallurgy gears are gears manufactured using powder metallurgy technology.

[0003] The existing technology has the following shortcomings:

[0004] During the sintering process of the existing gear powder metallurgy sintering device, the gear is usually stationary on the sintering disk, resulting in different degrees of heating of its various parts. This sintering method will cause uneven heating of the surface of the gear, resulting in local structural differences inside the gear, which in turn affects the overall mechanical properties of the gear. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a gear powder metallurgy sintering device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gear powder metallurgy sintering device, comprising a sintering box, a combustion chamber is arranged at the inner center of the sintering box, a plurality of mounting plates are arranged inside the sintering box, a plurality of through holes are provided on the outer side of the combustion chamber corresponding to the lower side of the mounting plates, a first motor and a second motor are fixedly installed at the bottom of the sintering box, and support rods are fixedly installed at the four corners of the bottom of the sintering box.

[0007] As a preferred technical solution of the utility model, the mounting plate is provided with a plurality of mounting holes, a tray is rotatably mounted inside the mounting holes, and a first gear ring is fixedly mounted outside the tray.

[0008] As a preferred technical solution of the utility model, a second gear ring is rotatably installed on the outer side of the combustion chamber corresponding to the position of the first gear ring, and the second gear ring is meshingly connected with the first gear ring.

[0009] As a preferred technical solution of the utility model, guide rods are fixedly installed at the four corners inside the sintering box and extend to the top of the sintering box. One group of the guide rods is provided with external threads on the outside. The mounting plate is threadedly connected to the external threads and is slidably connected to the guide rods.

[0010] As a preferred technical solution of the utility model, the output end of the first motor extends to the interior of the sintering box and is fixedly connected to a guide rod with an external thread, and the output end of the second motor extends to the interior of the sintering box and a turntable is fixedly installed, the top of the turntable is rotatably connected to the bottom of the combustion chamber, and multiple groups of connecting rods are fixedly installed between the turntable and multiple groups of second gear rings.

[0011] As a preferred technical solution of the utility model, two groups of side plates are fixedly installed on one side of the sintering box, and a cover plate is slidably installed between the two groups of side plates. The cover plate is L-shaped, and a handle is fixedly installed on the outer side of the cover plate. The cover plate is slidably connected to four groups of guide rods respectively.

[0012] As a preferred technical solution of the utility model, a clamping block is fixedly installed at the bottom of the cover plate corresponding to the position of the combustion chamber, and a clamping groove is provided at the top of the combustion chamber corresponding to the position of the clamping block.

[0013] Compared with the prior art, the utility model provides a gear powder metallurgy sintering device, which has the following beneficial effects:

[0014] The gear powder metallurgy sintering device starts a first motor to drive a guide rod to rotate and connect, so that a mounting plate moves upward, and a tray moves to the top of a sintering box, so that the gear blank is placed inside the tray. When heating is performed, a second motor is started to drive a turntable to rotate, so that a connecting rod drives a second gear ring to rotate, and drives a first gear ring to rotate, so that the tray drives the gear blank to rotate, so that the surface of the gear can be evenly heated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the sintering box of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model in top view.

[0019] In the figure: 1, sintering box; 2, combustion chamber; 201, through hole; 3, mounting plate; 301, guide rod; 302, external thread; 303, first motor; 4, mounting hole; 401, tray; 402, first gear ring; 5, second motor; 501, turntable; 502, second gear ring; 503, connecting rod; 6, support rod; 7, side plate; 8, cover plate; 801, block; 802, slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 In this embodiment: a gear powder metallurgy sintering device includes a sintering box 1, a combustion chamber 2 is arranged at the inner center of the sintering box 1, a plurality of mounting plates 3 are arranged inside the sintering box 1, a plurality of through holes 201 are opened below the outer side of the combustion chamber 2 corresponding to the mounting plates 3, a first motor 303 and a second motor 5 are fixedly installed at the bottom of the sintering box 1, and support rods 6 are fixedly installed at the four corners of the bottom of the sintering box 1.

[0022] In this embodiment, a plurality of mounting holes 4 are provided on the mounting plate 3 , a tray 401 is rotatably mounted inside the mounting holes 4 , and a first gear ring 402 is fixedly mounted outside the tray 401 .

[0023] In this embodiment, the second gear ring 502 is rotatably installed on the outer side of the combustion chamber 2 corresponding to the position of the first gear ring 402, and the second gear ring 502 is meshingly connected with the first gear ring 402. By starting the second motor 5 to drive the turntable 501 to rotate, the connecting rod 503 drives the second gear ring 502 to rotate, and drives the first gear ring 402 to rotate, so that the tray 401 drives the gear blank to rotate, so that it can be evenly heated.

[0024] In this embodiment, guide rods 301 are fixedly installed at the four corners inside the sintering box 1 and extend to the top of the sintering box 1. One group of guide rods 301 has an external thread 302 on the outside. The mounting plate 3 is threadedly connected to the external thread 302 and is slidably connected to the guide rods 301.

[0025] In this embodiment, the output end of the first motor 303 extends to the interior of the sintering box 1 and is fixedly connected to the guide rod 301 with an external thread 302. The output end of the second motor 5 extends to the interior of the sintering box 1 and a turntable 501 is fixedly installed. The top of the turntable 501 is rotatably connected to the bottom of the combustion chamber 2. Multiple groups of connecting rods 503 are fixedly installed between the turntable 501 and multiple groups of second gear rings 502. By starting the first motor 303 to drive the guide rod 301 to rotate, the mounting plate 3 moves upward, and the tray 401 moves to the top of the sintering box 1, so as to facilitate the placement of the gear blank inside the tray 401.

[0026] In this embodiment, two sets of side plates 7 are fixedly installed on one side of the sintering box 1, and a cover plate 8 is slidably installed between the two sets of side plates 7. The cover plate 8 is L-shaped, and a handle is fixedly installed on the outer side of the cover plate 8. The cover plate 8 is slidably connected to the four sets of guide rods 301 respectively.

[0027] In this embodiment, a block 801 is fixedly installed at the bottom of the cover plate 8 corresponding to the position of the combustion chamber 2, and a slot 802 is provided at the top of the combustion chamber 2 corresponding to the position of the block 801. When in use, the cover plate 8 is moved upward by pushing the handle, so that the sintering box 1 is opened and the block 801 is driven out of the slot 802.

[0028] The working principle and use process of the utility model are as follows: when in use, the cover plate 8 is driven upward by pushing the handle to open the sintering box 1, and then the guide rod 301 is driven to rotate and connect by starting the first motor 303, so that the mounting plate 3 moves upward, and the tray 401 moves to the top of the sintering box 1, so that the gear blank is placed inside the tray 401, and then the first motor 303 is started again to reverse, so that the gear blank moves to the inside of the sintering box 1, and the cover plate 8 is pulled downward by the handle to close the sintering box 1, so that the block 801 is inserted into the inside of the slot 802, and when heating, the turntable 501 is driven to rotate by starting the second motor 5, so that the connecting rod 503 drives the second gear ring 502 to rotate, and drives the first gear ring 402 to rotate, so that the tray 401 drives the gear blank to rotate, so that it can be heated evenly.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gear powder metallurgy sintering device, comprising a sintering box (1), wherein a combustion chamber (2) is arranged at the center of the interior of the sintering box (1), a plurality of mounting plates (3) are arranged inside the sintering box (1), a plurality of through holes (201) are provided on the outer side of the combustion chamber (2) below the mounting plates (3), a first motor (303) and a second motor (5) are fixedly mounted at the bottom of the sintering box (1), and support rods (6) are fixedly mounted at the four corners of the bottom of the sintering box (1).

2. The gear powder metallurgy sintering device according to claim 1, characterized in that: The mounting plate (3) is provided with a plurality of mounting holes (4), the interior of the mounting holes (4) being rotatably mounted with a tray (401), and the exterior of the tray (401) being fixedly mounted with a first gear ring (402).

3. The gear powder metallurgy sintering device according to claim 2, characterized in that: A second gear ring (502) is rotatably mounted on the outer side of the combustion chamber (2) at a position corresponding to the first gear ring (402), and the second gear ring (502) is meshingly connected with the first gear ring (402).

4. The gear powder metallurgy sintering device according to claim 1, characterized in that: Guide rods (301) are fixedly installed at the four corners inside the sintering box (1) and extend to the top of the sintering box (1). One group of the guide rods (301) is provided with external threads (302) on the outside. The mounting plate (3) is threadedly connected to the external threads (302) and is slidably connected to the guide rods (301).

5. The gear powder metallurgy sintering device according to claim 1, characterized in that: The output end of the first motor (303) extends to the interior of the sintering box (1) and is fixedly connected to a guide rod (301) having an external thread (302); the output end of the second motor (5) extends to the interior of the sintering box (1) and is fixedly installed with a turntable (501); the top of the turntable (501) is rotatably connected to the bottom of the combustion chamber (2); and a plurality of groups of connecting rods (503) are fixedly installed between the turntable (501) and the plurality of groups of second gear rings (502).

6. The gear powder metallurgy sintering device according to claim 1, characterized in that: Two groups of side plates (7) are fixedly mounted on one side of the sintering box (1), a cover plate (8) is slidably mounted between the two groups of side plates (7), the cover plate (8) is L-shaped, and a handle is fixedly mounted on the outer side of the cover plate (8), and the cover plate (8) is slidably connected to the four groups of guide rods (301) respectively.

7. The gear powder metallurgy sintering device according to claim 6, characterized in that: A clamping block (801) is fixedly installed at a position corresponding to the combustion chamber (2) at the bottom of the cover plate (8), and a clamping groove (802) is provided at a position corresponding to the clamping block (801) at the top of the combustion chamber (2).

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