Quenching furnace for powder metallurgy

Abstract

The utility model relates to the technical field of quenching furnaces, and discloses a quenching furnace for powder metallurgy, which comprises a quenching furnace body and a mounting table for mounting the quenching furnace body, the mounting table is provided with a moving device on the right side of the quenching furnace body, the moving device comprises a sliding box, and a moving support is slidably connected in the sliding box. A ratchet wheel and a rotating platform are installed on the movable support, a ratchet strip assembly is installed on the side of the installation table and comprises a ratchet strip, and ratchets of the ratchet strip are connected with ratchets of the ratchet wheel in a one-way clamping mode. The motor can be started to drive the screw to rotate to control the moving support to move, the ratchet wheel on the moving support is matched with the ratchet strip to achieve one-way rotation of the rotating platform, and the spring pin installed on the rotating platform is matched with the clamping hole to limit the direction of the storage table on the extending arm. Therefore, the mechanism can automatically control a plurality of quenching objects to be sequentially put into the quenching furnace and taken out; manual participation links are reduced, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of quenching furnaces, in particular to a quenching furnace for powder metallurgy. Background Art

[0002] Powder metallurgy is a process technology that produces metal powder or uses metal powder (or a mixture of metal powder and non-metallic powder) as raw material, and then forms and sinters it to manufacture metal materials, composite materials and various types of products. Generally, a quenching furnace is used during firing. Quenching is to place the workpiece in the furnace and heat it to a quenching temperature above the critical point and maintain it for a period of time. Then the workpiece is quickly taken out of the furnace and placed in a quenching liquid (oil or water) for quenching.

[0003] The existing quenching furnace for powder metallurgy (publication number: CN220597564U) has at least the following disadvantages: it is not convenient to put in and take out the quenching objects, and manual participation is required, resulting in high labor costs and low work efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a quenching furnace for powder metallurgy.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A quenching furnace for powder metallurgy comprises a quenching furnace body and a mounting platform for mounting the quenching furnace body, a moving device is mounted on the mounting platform on the right side of the quenching furnace body, the moving device comprises a sliding box, a screw is rotatably connected in the sliding box, one end of the screw passes through the side wall of the sliding box and is coaxially connected to a motor, a moving bracket is slidably connected in the sliding box, a ratchet is rotatably mounted on the moving bracket, a rotating shaft of the ratchet passes through the top plate of the moving bracket and is rotatably connected to a rotating platform, a ratchet assembly is fixedly mounted on one side of the moving bracket on the mounting platform by bolts, the ratchet assembly comprises a ratchet, and the ratchet teeth of the ratchet are unidirectionally clamped with the ratchet teeth of the ratchet wheel.

[0007] As a further solution of the utility model, a vent hole is provided on the top of the quenching furnace body, and a feed port is opened on the side wall of the quenching furnace body.

[0008] As a further solution of the utility model, a fixing ring for mounting the quenching furnace body is provided on the mounting platform, and a plurality of supporting legs are installed at the bottom of the mounting platform.

[0009] As a further solution of the utility model, the bottom of the movable bracket is an inverted T-sliding block, which is slidably clamped in the sliding box, and the inverted T-sliding block is provided with threaded holes on the left and right sides for threaded connection with the screw.

[0010] As a further solution of the utility model, a number of extension arms are equidistantly radiated on the side wall of the rotating platform, and an airtight plate is integrally formed in the middle of the several extension arms. The inner plate size of the airtight plate is matched with the size of the feed port, and the outer plate of the airtight plate is matched with the outer wall of the quenching furnace body, and storage tables are installed at the ends of the several extension arms.

[0011] As a further solution of the utility model, a plurality of extension arms are provided with mounting grooves, a plurality of mounting grooves are provided with spring pins, and the bottom ends of the spring pins pass through the extension arms and are engaged with the engaging holes integrally formed on the movable bracket.

[0012] As a further solution of the utility model, the ratchet bar assembly includes a mounting frame, a mounting box for mounting the ratchet bar is integrally formed at the top of the mounting frame, sliders are provided at both ends of the left and right ends of the ratchet bar, the two sliders are respectively slidably connected in the slide grooves opened on the left and right side walls of the mounting box, a number of springs are equidistantly installed on the front end surface of the ratchet bar, and the ends of the springs away from the ratchet bar abut against the inner wall of the mounting box.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model starts a motor to drive the screw to rotate and control the movement of the movable bracket. The cooperation of the ratchet wheel and the ratchet bar on the movable bracket can realize the unidirectional rotation of the rotating platform. The cooperation of the spring pin installed on the rotating platform and the clamping hole can limit the direction of the storage table on the extension arm, so that the mechanism can automatically control a plurality of quenching objects to be placed in the quenching furnace and taken out in turn; the manual participation link is reduced, and the labor cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a quenching furnace for powder metallurgy proposed by the utility model;

[0016] Figure 2 This is a working schematic diagram of a quenching furnace for powder metallurgy proposed by the utility model;

[0017] Figure 3 This is a structural cross-sectional view of a quenching furnace for powder metallurgy proposed by the utility model;

[0018] Figure 4 This is an exploded view of the overall structure of a quenching furnace for powder metallurgy proposed by the utility model;

[0019] Figure 5 The utility model proposes a local structure explosion of a powder metallurgy quenching furnace Figure 1 ;

[0020] Figure 6 The utility model proposes a local structure explosion of a powder metallurgy quenching furnace Figure 2 .

[0021] In the figure: 1. quenching furnace body; 12. vent hole; 13. feed port; 2. mounting table; 21. fixing ring; 22. support foot; 3. moving device; 31. sliding box; 32. screw; 33. motor; 4. moving bracket; 41. inverted T slider; 42. snap-on hole; 5. ratchet; 6. rotating platform; 61. extension arm; 62. airtight plate; 63. storage table; 64. mounting groove; 7. ratchet assembly; 71. mounting frame; 711. mounting box; 712. slide groove; 72. ratchet; 721. slider; 73. spring; 8. spring pin. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Reference Figure 1-Figure 6A quenching furnace for powder metallurgy comprises a quenching furnace body 1 and a mounting platform 2 for mounting the quenching furnace body 1. A moving device 3 is mounted on the mounting platform 2 on the right side of the quenching furnace body 1. The moving device 3 comprises a sliding box 31. A screw 32 is rotatably connected in the sliding box 31. One end of the screw 32 passes through the side wall of the sliding box 31 and is coaxially connected to a motor 33. A moving bracket 4 is slidably connected in the sliding box 31. A ratchet 5 is rotatably mounted on the moving bracket 4. The rotating shaft of the ratchet 5 passes through the top plate of the moving bracket 4 and is rotatably connected to a rotating platform 6. A ratchet assembly 7 is fixedly mounted on one side of the moving bracket 4 on the mounting platform 2 by bolts. The ratchet assembly 7 comprises a ratchet 72. The ratchet teeth of the ratchet 72 are unidirectionally engaged with the ratchet teeth of the ratchet 5.

[0026] In this embodiment, a vent hole 12 is provided on the top of the quenching furnace body 1 , and a feed port 13 is provided on the side wall of the quenching furnace body 1 .

[0027] In this embodiment, a fixing ring 21 for mounting the quenching furnace body 1 is provided on the mounting platform 2, and a plurality of supporting legs 22 are installed at the bottom of the mounting platform 2, and the supporting legs 22 are made of rubber material.

[0028] In this embodiment, the bottom of the mobile bracket 4 is an inverted T-slider 41, which is slidably engaged in the sliding box 31. The inverted T-slider 41 is provided with threaded holes for threaded connection with the screw 32 on the left and right sides. The screw 32 is driven to rotate by the motor 33 to indirectly control the movement of the mobile bracket 4, thereby controlling the movement of the rotating platform 6 installed on the mobile bracket 4.

[0029] In this embodiment, a plurality of extension arms 61 are equidistantly radiated from the side wall of the rotating platform 6, and an airtight plate 62 is integrally formed in the middle of each of the extension arms 61. The inner plate size of the airtight plate 62 is adapted to the size of the feed port 13, and the outer plate of the airtight plate 62 is adapted to the outer wall of the quenching furnace body 1. A storage platform 63 is installed at the end of each of the extension arms 61, and both the extension arms 61 and the storage platform 63 are made of high-temperature resistant material.

[0030] In this embodiment, several extension arms 61 are provided with installation grooves 64, and spring pins 8 are installed in several installation grooves 64. The bottom end of the spring pin 8 passes through the extension arm 61 and is engaged with the integrally formed clamping hole 42 on the movable bracket 4. The cooperation between the spring pin 8 and the clamping hole 42 can limit the direction of the extension arm 61 entering the feed port 13.

[0031] In this embodiment, the ratchet assembly 7 includes a mounting frame 71, and a mounting box 711 for mounting the ratchet 72 is integrally formed at the top of the mounting frame 71. Sliders 721 are provided at both ends of the left and right ends of the ratchet 72. The two slides 721 are respectively slidably connected in the slide grooves 712 opened on the left and right side walls of the mounting box 711. A number of springs 73 are equidistantly installed on the front end surface of the ratchet 72, and one end of the springs 73 away from the ratchet 72 abuts against the inner wall of the mounting box 711. The ratchet assembly 7 cooperates with the ratchet 5 to realize the unidirectional rotation of the rotating platform 6.

[0032] From the above description, it can be seen that the above-mentioned embodiment of the utility model achieves the following technical effects: the quenching furnace body 1 installed on the mounting table 2 through the fixing ring 21 puts in and takes out materials through the feed port 13 opened on the side wall, the motor 33 in the moving device 3 rotates forward to drive the screw 32 to rotate and control the moving bracket 4 to move to the left, and when the ratchet 5 installed on the moving bracket 4 passes through the ratchet assembly 7, the ratchet teeth of the ratchet 5 are engaged with the ratchet teeth of the ratchet 72, and the rotation of the ratchet 5 drives the rotating platform 6 to rotate until the spring pin 8 in the mounting groove 64 is engaged with the engaging hole 42, limiting the direction of the extension arm 61 entering the feed port 13, and at the same time, the ratchet 5 is out of contact with the ratchet 72, and the motor 33 continues to rotate to control the storage platform 63 to enter the quenching furnace body 1 for heating, and at the same time, the airtight plate 62 on the extension arm 61 cooperates with the feed port 13 to prevent heat leakage;

[0033] After heating is completed, the motor 33 reverses to control the movable bracket 4 to move rightward. When the ratchet 5 contacts the ratchet bar 72, due to the characteristics of the ratchet mechanism and the resistance of the spring pin 8 and the engaging hole 42, the ratchet 5 does not rotate and applies pressure to the ratchet bar 72 so that the ratchet bar 72 compresses the spring 73 and returns to the installation box 711.

[0034] When the movable bracket 4 moves to the right end, the motor 33 rotates forward to control the rotating platform 6 to move to the left. At this time, the resistance of the ratchet engagement between the wheel 5 and the ratchet bar 72 is greater than the resistance of the spring pin 8 and the engaging hole 42. The spring pin 8 pops out from the engaging hole 42, and the rotation of the ratchet 5 drives the rotating platform 6 to rotate. When the ratchet 5 is out of contact with the ratchet bar 72, the spring pin 8 of the next extension arm 61 engages with the engaging hole 42, limiting the direction of the extension arm 61 entering the feed port 13. Repeating the above operations in sequence can realize the function of sending multiple portions of material to the quenching furnace body 1 for heating in sequence.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A quenching furnace for powder metallurgy, comprising a quenching furnace body (1) and a mounting platform (2) for mounting the quenching furnace body (1), characterized in that: The mounting platform (2) is provided with a moving device (3) on the right side of the quenching furnace body (1), and the moving device (3) comprises a sliding box (31), a screw rod (32) is rotatably connected in the sliding box (31), one end of the screw rod (32) passes through the side wall of the sliding box (31) and is coaxially connected to a motor (33), a moving bracket (4) is slidably connected in the sliding box (31), a ratchet wheel (5) is rotatably mounted on the moving bracket (4), the rotating shaft of the ratchet wheel (5) passes through the top plate of the moving bracket (4) and is rotatably connected to a rotating platform (6), and a ratchet assembly (7) is fixedly mounted on one side of the moving bracket (4) by bolts on the mounting platform (2), and the ratchet assembly (7) comprises a ratchet wheel (72), and the ratchet teeth of the ratchet wheel (72) are unidirectionally engaged with the ratchet teeth of the ratchet wheel (5).

2. A quenching furnace for powder metallurgy according to claim 1, characterized in that: The top of the quenching furnace body (1) is provided with a vent hole (12), and the side wall of the quenching furnace body (1) is provided with a feed port (13).

3. A quenching furnace for powder metallurgy according to claim 2, characterized in that: The mounting platform (2) is provided with a fixing ring (21) for mounting the quenching furnace body (1), and a plurality of supporting legs (22) are mounted on the bottom of the mounting platform (2).

4. A quenching furnace for powder metallurgy according to claim 1, characterized in that: The bottom of the movable bracket (4) is an inverted T-shaped slider (41), which is slidably engaged in the sliding box (31). The inverted T-shaped slider (41) is provided with threaded holes on the left and right sides for threaded connection with the screw rod (32).

5. The quenching furnace for powder metallurgy according to claim 3, characterized in that: The side wall of the rotating platform (6) is equidistantly radially provided with a plurality of extension arms (61); a gas-tight plate (62) is integrally formed in the middle of each of the extension arms (61); the inner plate size of the gas-tight plate (62) is matched with the size of the feed port (13); the outer plate of the gas-tight plate (62) is matched with the outer wall of the quenching furnace body (1); and a storage table (63) is installed at the end of each of the extension arms (61).

6. A quenching furnace for powder metallurgy according to claim 5, characterized in that: A plurality of the extension arms (61) are provided with mounting grooves (64), a spring pin (8) is installed in each of the mounting grooves (64), and the bottom end of the spring pin (8) passes through the extension arm (61) and is engaged with an integrally formed engaging hole (42) on the movable bracket (4).

7. The quenching furnace for powder metallurgy according to claim 1, characterized in that: The ratchet bar assembly (7) comprises a mounting frame (71), the top of the mounting frame (71) is integrally formed with a mounting box (711) for mounting the ratchet bar (72), both left and right ends of the ratchet bar (72) are provided with sliders (721), the two sliders (721) are respectively slidably connected in the slide grooves (712) provided on the left and right side walls of the mounting box (711), a plurality of springs (73) are equidistantly mounted on the front end surface of the ratchet bar (72), and the ends of the plurality of springs (73) away from the ratchet bar (72) are in contact with the inner wall of the mounting box (711).

Images