Quenching device for gear shaft

Abstract

The utility model discloses a quenching device for a gear shaft, and relates to the technical field of quenching devices. A motor used for driving a first rotating shaft is installed at the top of a quenching liquid box, an annular sleeve is arranged on the outer side of the first rotating shaft, a plurality of first stirring rods and a plurality of second stirring rods are installed on the outer wall face of the first rotating shaft and the outer wall face of the sleeve respectively, and a stirring part used for driving the first stirring rods and the second stirring rods to rotate is arranged at the movable end of the first rotating shaft. The motor can drive the first rotating shaft to rotate, and the rotating first rotating shaft can drive the sleeve to rotate, so that the first stirring rod and the second stirring rod can rotate under the driving of the first rotating shaft, the purpose of stirring quenching liquid in the quenching liquid box is achieved, and the temperature changes of the quenching liquid at all positions in the quenching liquid box are almost consistent; and the situation that the quenching effect on the gear shaft is affected due to inconsistent temperature changes of quenching liquid in the quenching liquid box is avoided, the quenching quality and the production qualification rate of the gear shaft are effectively guaranteed, and the production benefits of enterprises are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of quenching devices, in particular to a quenching device for a gear shaft. Background Art

[0002] The tooth axis is the center line of the front and back of the cone-shaped thorn. The center line of the white substance or the line of the tooth layer space extending to the top can be seen in the single cone thorn. The center line of the thorn body, fine teeth, tooth process and main teeth is also called the tooth axis. During the processing of the tooth axis, it is often necessary to quench the tooth axis to transform its surface structure into martensite, thereby improving its hardness, wear resistance and fatigue strength, and extending its wear resistance life.

[0003] The existing gear shaft quenching generally requires workers to use a clamp to place the gear shaft into the quenching liquid for cooling. The quenching liquid box lacks a component to stir the quenching liquid, resulting in inconsistent temperature changes of the quenching liquid surrounding the outside of the gear shaft, causing uneven cooling of the gear shaft body, affecting the quenching efficiency of the gear shaft, and even affecting the quenching quality of the gear shaft, causing the produced workpiece to be unqualified, affecting the improvement of the company's production efficiency.

[0004] For this purpose, a quenching device for a gear shaft is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art and provide a quenching device for a gear shaft.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A quenching device for a gear shaft comprises a quenching liquid tank, wherein a rotating shaft 1 is arranged inside the quenching liquid tank, a motor for driving the rotating shaft 1 is installed on the top of the quenching liquid tank, an annular sleeve is arranged on the outside of the rotating shaft 1, a plurality of stirring rods 1 and 2 are respectively installed on the outer wall surfaces of the rotating shaft 1 and the sleeve, a stirring part for driving the plurality of stirring rods 1 and 2 to rotate is arranged on the movable end of the rotating shaft 1, and a placement part for limiting the gear shaft is arranged on the outer wall surface of the stirring rod 1.

[0008] Furthermore, the plurality of stirring rods 1 and the plurality of stirring rods 2 are fixedly connected to the outer wall of the rotating shaft 1 and the sleeve by bolts, and arc-shaped cushions are bonded to the side of the stirring rod 1 and the stirring rod 2 facing the inner wall of the quenching tank.

[0009] Further, the stirring part includes a first helical gear. The movable end of the first rotating shaft is fixedly installed with the first helical gear. A second helical gear is installed on the outer surface of the first rotating shaft, and the second helical gear is sleeved on the outer wall surface of the first rotating shaft. An inverted "C"-shaped mounting bracket is installed on the inner wall surface of the quenching liquid tank. Both ends of the mounting bracket are rotatably connected with mounting rings. The upper and lower side walls of the upper mounting ring are respectively fixedly connected with the bottom of the sleeve and the top of the second helical gear. The upper and lower walls of the lower mounting ring are respectively rotatably connected with the bottom of the first helical gear and the inner wall surface of the quenching liquid tank. A third helical gear meshing with the first helical gear and the second helical gear is installed on the side wall surface of the mounting bracket.

[0010] Further, the placing part includes a fixed ring. The fixed ring is fixedly connected to the outer wall surface of the first rotating shaft. Three accommodating boxes are arranged circumferentially outside the fixed ring. A plurality of mounting cavities are opened on the accommodating boxes. Two symmetrically arranged mounting cavities on the left and right are internally slidably connected with pull plates. A damping spring and a telescopic rod are connected between the side wall surface of the pull plate and the inner wall surface of the mounting cavity.

[0011] Further, a plurality of supporting plates are equidistantly installed inside the accommodating box.

[0012] Further, two brackets are mortised on the outer wall surface of the accommodating box. The movable ends of the brackets are connected to the outer wall surface of the fixed ring by welding.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. The motor provided in the present utility model can drive the first rotating shaft to rotate. The rotating first rotating shaft can drive the sleeve to rotate, so that the first stirring rod and the second stirring rod can rotate under the drive of the first rotating shaft, achieving the purpose of stirring the quenching liquid inside the quenching liquid tank, making the temperature change of the quenching liquid everywhere inside the quenching liquid tank almost the same, avoiding inconsistent temperature change of the quenching liquid inside the quenching liquid tank and affecting the quenching effect of the gear shaft, effectively ensuring the quenching quality of the gear shaft and the production qualification rate of the gear shaft, and ensuring the production efficiency of the enterprise; through the arranged stirring part, the rotation of the first rotating shaft can be transmitted to the sleeve, making the rotation directions of the plurality of first stirring rods and the plurality of second stirring rods opposite, so as to increase the activity amplitude of the quenching liquid inside the quenching liquid tank and improve the stirring and mixing effect of the quenching liquid. Description of the Drawings

[0015] Figure 1 is a schematic cross-sectional view of the overall structure of the present utility model;

[0016] Figure 2 is a front three-dimensional schematic view of the overall structure of the present utility model;

[0017] Figure 3 is an enlarged schematic view of the structure at the second helical gear of the present utility model

[0018] Figure 4It is an enlarged schematic diagram of the placement part structure of the utility model;

[0019] Figure numerals: 1. quenching tank; 2. motor; 3. stirring rod 1; 4. placement part; 401. fixing ring; 402. bracket; 403. accommodating box; 404. installation cavity; 405. support plate; 406. pull plate; 407. damping spring; 408. telescopic rod; 5. rotating shaft 1; 6. stirring part; 601. bevel gear 1; 602. bevel gear 2; 603. mounting ring; 606. mounting frame; 607. bevel gear 3; 7. sleeve; 8. stirring rod 2. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figures 1 to 4As shown in the figure, a quenching device for a toothed shaft includes a quenching liquid tank 1. Inside the quenching liquid tank 1, there is a first rotating shaft 5. At the top of the quenching liquid tank 1, there is a motor 2 for driving the first rotating shaft 5. On the outer side of the first rotating shaft 5, there is an annular sleeve 7. On the outer wall surfaces of the first rotating shaft 5 and the sleeve 7, there are respectively installed a plurality of first stirring rods 3 and second stirring rods 8. At the movable end of the first rotating shaft 5, there is a stirring part 6 for driving the plurality of first stirring rods 3 and the plurality of second stirring rods 8 to rotate. On the outer wall surface of the first stirring rod 3, there is a placing part 4 for limiting the toothed shaft. The plurality of first stirring rods 3 and the plurality of second stirring rods 8 are both arranged in a circular distribution;

[0025] To facilitate the disassembly and assembly of the first stirring rods 3 and the second stirring rods 8, and at the same time to prevent damage to the inner wall surface of the quenching liquid tank 1, the plurality of first stirring rods 3 and the plurality of second stirring rods 8 are both fixedly connected to the outer wall surfaces of the first rotating shaft 5 and the sleeve 7 by bolts, and on the side of the first stirring rod 3 and the second stirring rod 8 facing the inner wall surface of the quenching liquid tank 1, there is an arc-shaped soft pad bonded;

[0026] Specifically, by setting the motor 2, the first rotating shaft 5 can be driven to rotate. The rotating first rotating shaft 5 can drive the sleeve 7 to rotate, so that the first stirring rods 3 and the second stirring rods 8 can rotate under the drive of the first rotating shaft 5, achieving the purpose of stirring the quenching liquid inside the quenching liquid tank 1, making the temperature change of the quenching liquid everywhere inside the quenching liquid tank 1 almost the same, avoiding inconsistent temperature change of the quenching liquid inside the quenching liquid tank 1, affecting the quenching effect of the toothed shaft, effectively ensuring the quenching quality of the toothed shaft and the production qualification rate of the toothed shaft, and ensuring the production efficiency of the enterprise; through the set stirring part 6, the rotation of the first rotating shaft 5 can be transmitted to the sleeve 7, making the rotation directions of the plurality of first stirring rods 3 and the plurality of second stirring rods 8 opposite, so as to increase the movement amplitude of the quenching liquid inside the quenching liquid tank 1 and improve the stirring and mixing effect of the quenching liquid.

[0027] As Figure 1 and Figure 3 shown in the figure, the stirring part 6 includes a first helical gear 601. The movable end of the first rotating shaft 5 is fixedly installed with a first helical gear 601. On the outer surface of the first rotating shaft 5, there is a second helical gear 602 sleeved on the outer wall surface of the first rotating shaft 5. On the inner wall surface of the quenching liquid tank 1, there is an inverted "C"-shaped mounting frame 606. At both ends of the mounting frame 606, there are respectively rotatably connected with mounting rings 603. The upper and lower side wall surfaces of the upper mounting ring 603 are respectively fixedly connected to the bottom of the sleeve 7 and the top of the second helical gear 602. The upper and lower wall surfaces of the lower mounting ring 603 are respectively rotatably connected to the bottom of the first helical gear 601 and the inner wall surface of the quenching liquid tank 1. On the side wall surface of the mounting frame 606, there is a third helical gear 607 meshing with the first helical gear 601 and the second helical gear 602;

[0028] Specifically, the bevel gear 1 601 can rotate accordingly when the rotating shaft 1 5 rotates, and the bevel gear 3 607 can transmit the rotational force of the bevel gear 1 601 to the bevel gear 2 602, thereby driving the sleeve 7 to rotate in the opposite direction, so that the rotation directions of the stirring rod 1 3 and the stirring rod 2 8 are opposite, thereby enhancing the stirring effect of the quenching liquid inside the quenching tank 1; the mounting frame 606 and the mounting ring 603 can ensure the stability of the bevel gear 1 601, the bevel gear 2 602, the sleeve 7 and the rotating shaft 5 during use.

[0029] like Figure 4 As shown, the placement portion 4 includes a fixing ring 401, and the fixing ring 401 is fixedly connected to the outer wall surface of the rotating shaft 1 5, and three circumferentially distributed receiving boxes 403 are arranged on the outer side of the fixing ring 401, and a plurality of installation cavities 404 are opened on the receiving box 403, and a pull plate 406 is slidably connected inside two installation cavities 404 symmetrically on the left and right, and a damping spring 407 and a telescopic rod 408 are connected between the side wall surface of the pull plate 406 and the inner wall surface of the installation cavity 404;

[0030] Specifically, the receiving box 403 is provided to store the gear shaft to be quenched, and the pull plate 406 installed in addition can clamp and limit the gear shaft to be quenched under the expansion and contraction cooperation of the damping spring 407 and the expansion rod 408, so as to ensure the stability of the gear shaft during the quenching process, reduce the deformation degree of the gear shaft during the quenching, and achieve the effect of classified storage of the gear shafts, avoid collision between the gear shafts, and realize the effect of quenching multiple gear shafts at the same time.

[0031] like Figure 4 As shown, a plurality of support plates 405 are equidistantly installed inside the containing box 403, and the number of the support plates 405 is the same as the number of the pulling plates 406;

[0032] Specifically, the supporting plate 405 can lift the bottom of the gear shaft, thereby ensuring the stability of the gear shaft when placed inside the containing box 403 during quenching.

[0033] like Figure 4 As shown, the outer wall of the containing box 403 is mortised with two brackets 402, and the movable ends of the brackets 402 are connected to the outer wall of the fixing ring 401 by welding;

[0034] Specifically, the bracket 402 is provided to facilitate disassembly and replacement of the containing box 403, and the structure is simple and easy to operate.

[0035] In summary: the motor 2 is arranged to drive the rotating shaft 5 to rotate, and the rotating rotating shaft 5 can drive the sleeve 7 to rotate, so that the stirring rod 1 3 and the stirring rod 2 8 can rotate under the drive of the rotating shaft 5, so as to achieve the purpose of stirring the quenching liquid inside the quenching liquid tank 1, so that the temperature change of the quenching liquid at various places inside the quenching liquid tank 1 is almost the same, avoiding the inconsistent temperature change of the quenching liquid inside the quenching liquid tank 1, affecting the quenching effect on the gear shaft, effectively ensuring the quenching quality of the gear shaft and the production qualification rate of the gear shaft, and ensuring the production efficiency of the enterprise; the stirring part 6 is arranged to transmit the rotation of the rotating shaft 5 to the sleeve 7, so that the rotation directions of the multiple stirring rods 1 3 and the multiple stirring rods 2 8 are opposite, thereby increasing the activity range of the quenching liquid inside the quenching liquid tank 1 and improving the stirring and mixing effect of the quenching liquid.

[0036] The above shows and describes the basic principle, main features and 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 the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements 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 device for a gear shaft, characterized in that: It includes a quenching liquid tank (1). Inside the quenching liquid tank (1), a first rotating shaft (5) is provided. At the top of the quenching liquid tank (1), a motor (2) for driving the first rotating shaft (5) is installed. An annular sleeve (7) is arranged on the outer side of the first rotating shaft (5). A plurality of first stirring rods (3) and second stirring rods (8) are respectively installed on the outer wall surfaces of the first rotating shaft (5) and the sleeve (7). A stirring part (6) for driving the plurality of first stirring rods (3) and the plurality of second stirring rods (8) to rotate is arranged at the movable end of the first rotating shaft (5). A placing part (4) for limiting the toothed shaft is arranged on the outer wall surface of the first stirring rod (3).

2. A gear shaft quenching device according to claim 1, characterized in that: The plurality of first stirring rods (3) and the plurality of second stirring rods (8) are both fixedly connected to the outer wall surfaces of the first rotating shaft (5) and the sleeve (7) by bolts. And arc-shaped soft pads are bonded to the sides of the first stirring rods (3) and the second stirring rods (8) facing the inner wall surface of the quenching liquid tank (1).

3. A gear shaft quenching device according to claim 1, characterized in that: The stirring part (6) includes a first helical gear (601). The first helical gear (601) is fixedly installed at the movable end of the first rotating shaft (5). A second helical gear (602) is installed on the outer surface of the first rotating shaft (5). The second helical gear (602) is sleeved on the outer wall surface of the first rotating shaft (5). An inverted "C"-shaped mounting frame (606) is installed on the inner wall surface of the quenching liquid tank (1). Installation rings (603) are rotatably connected to both ends of the mounting frame (606). The upper and lower side wall surfaces of the upper installation ring (603) are respectively fixedly connected to the bottom of the sleeve (7) and the top of the second helical gear (602). The upper and lower wall surfaces of the lower installation ring (603) are respectively rotatably connected to the bottom of the first helical gear (601) and the inner wall surface of the quenching liquid tank (1). A third helical gear (607) meshing with the first helical gear (601) and the second helical gear (602) is installed on the side wall surface of the mounting frame (606).

4. A gear shaft quenching device according to claim 1, characterized in that: The placing part (4) includes a fixing ring (401). The fixing ring (401) is fixedly connected to the outer wall surface of the first rotating shaft (5). Three accommodating boxes (403) distributed circumferentially are arranged outside the fixing ring (401). A plurality of installation cavities (404) are opened in the accommodating boxes (403). Pulling plates (406) are slidably connected inside two symmetrically arranged installation cavities (404) on the left and right. A damping spring (407) and a telescopic rod (408) are connected between the side wall surface of the pulling plate (406) and the inner wall surface of the installation cavity (404).

5. A gear shaft quenching device according to claim 4, characterized in that: A plurality of supporting plates (405) are equidistantly installed inside the accommodating boxes (403).

6. A gear shaft quenching device according to claim 4, characterized in that: Two brackets (402) are mortised on the outer wall surface of the accommodating box (403). The movable ends of the brackets (402) are connected to the outer wall surface of the fixing ring (401) by welding.

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