Driving wheel quenching tool

Abstract

The application relates to the technical field of quenching tool clamps, and discloses a driving wheel quenching tool which comprises a lifting chain, a bottom frame, a driving wheel, an upper pressing plate and a lower pressing plate, the driving wheel is located between the upper pressing plate and the lower pressing plate, a lever pressing assembly is arranged, the self gravity of the driving wheel is used to control the upper pressing plate and the lower pressing plate to tightly seal the width of the driving wheel, and a testing mechanism is arranged. The driving wheel quenching tool is characterized in that the lever pressing assembly is arranged, the self gravity of the driving wheel is used as driving force according to the lever principle, the upper pressing plate is tightly pressed on the upper surface of the driving wheel, the width position of the driving wheel is directly covered and protected, the driving wheel is protected, the tooth root of the tooth and the position of the tooth pit can be rapidly cooled and quenched when the driving wheel is quenched as a whole, the upper and lower width positions of the driving wheel are sealed and protected, the surface of the driving wheel is not affected by cooling water, and the subsequent multiple process machining of the driving wheel is facilitated.

Description

Technical Field

[0001] This invention relates to the field of quenching fixture technology, specifically a quenching fixture for a drive wheel. Background Technology

[0002] Quenching is a metal heat treatment process whose main purpose is to adjust the mechanical properties of metallic materials through rapid cooling. Specifically, the quenching process involves heating steel to above its critical temperature, holding it at that temperature for a certain time, and then cooling it at a rate greater than the critical cooling rate to obtain a non-equilibrium microstructure dominated by martensite. This treatment can significantly improve the strength, hardness, wear resistance, and fatigue strength of steel.

[0003] Conventional drive wheels mainly consist of teeth, spokes, and rims. Because they require tooth transmission, load-bearing, and friction, the hardness of the drive wheel teeth has extremely stringent requirements. Typically, after the drive wheel's tooth profile is machined, the tooth surface needs to be hardened by medium-frequency quenching to improve its surface hardness. However, another type of drive wheel... Figure 1 As shown, the drive wheel has multiple tooth recesses. However, ordinary medium-frequency quenching equipment has difficulty quenching the tooth recesses, or the quenching effect is poor, resulting in the tooth recesses not meeting the hardness requirements. In the existing technology, when quenching this type of drive wheel, the entire gear is generally heated and then rapidly cooled in water. Although the gear hardness meets the requirements, the overall hardness of the gear also increases simultaneously, making it impossible to perform subsequent machining such as drilling and chamfering at the upper and lower positions of the spoke plate. Therefore, a drive wheel quenching fixture is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a drive wheel quenching fixture, which solves the problems of poor quenching effect on drive wheels in existing technologies, the inability to perform local quenching at the required locations, and the inability to perform overall quenching, which would prevent subsequent gear processing from being carried out with increased hardness.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drive wheel quenching fixture, comprising: a lifting chain; a base frame; a drive wheel; an upper pressure plate and a lower pressure plate, wherein the drive wheel is located between the upper pressure plate and the lower pressure plate; a lever pressing assembly, which uses the weight of the drive wheel itself to control the upper pressure plate and the lower pressure plate to press and seal the drive wheel's surface; a testing mechanism, used to test whether the seal between the upper pressure plate and the lower pressure plate is tight; and a flipping mechanism, used to control the flipping and repositioning of the upper pressure plate; the lower pressure plate is mounted on the base frame, and the lever pressing assembly and the testing mechanism are both mounted on the base frame; the lever pressing assembly includes a fixed frame, the bottom of which is fixed to the base frame, and a pressure rod is rotatably connected to the fixed frame, one end of which abuts against the upper pressure plate, and the other end of which is connected to the lifting chain.

[0006] Preferably, the lever pressing assembly further includes an alignment device, which includes a fixed gear fixed at the connection between the pressing rod and the fixed frame. The surface of the fixed gear meshes with a support toothed plate, and the support toothed plate is slidably connected to the fixed frame. An inclined pressure plate is fixedly connected to the left side of the support toothed plate. A guide rod is slidably connected to the fixed frame, and a guide frame is connected to the left end of the guide rod. A sliding rod is slidably connected to the guide frame, and a compression spring is sleeved on the surface of the sliding rod. An extrusion frame is connected to the right end of the sliding rod, and a roller is provided on the extrusion frame. The surface of the roller abuts against the inclined pressure plate.

[0007] Preferably, there are two alignment devices, and the two alignment devices are symmetrically distributed about the center line of the base frame. The top of the guide frame is provided with a sliding plate with an inclined angle.

[0008] Preferably, the upper pressure plate and the lower pressure plate have the same structure. The lower pressure plate has multiple width slots inside. The width slots correspond to the upper and lower widths of the drive wheel, and the multiple width slots are interconnected through through holes.

[0009] Preferably, the testing mechanism includes a float located below the base frame. A piston plate is connected to the float via a connecting rod. An air sleeve is slidably connected to the surface of the piston plate. The air sleeve is fixed to the base frame and connected to a connecting pipe that communicates with the width groove.

[0010] Preferably, the air jacket is also connected to an air intake pipe, which is connected to a width groove opened on the upper pressure plate. The width groove on the upper pressure plate is connected to a guide tube, and a transparent tube is connected to the guide tube. A lifting plate is slidably connected inside the transparent tube, and an indicator rod is provided on the lifting plate.

[0011] Preferably, the flipping mechanism includes an arc-shaped frame, which is mounted on an upper pressure plate. A bracket is slidably connected to the arc-shaped frame, and the bracket is connected to one of the four pressure rods. A support rod is connected to the side of the upper pressure plate, and a guide sleeve is slidably connected to the surface of the support rod. A one-way device is provided on the guide sleeve.

[0012] Preferably, the arc-shaped frame has an arc-shaped groove inside, and the pressure rod is slidably connected inside the arc-shaped groove.

[0013] Preferably, the one-way device includes a fixed toothed sleeve fixed to a guide sleeve, a movable toothed sleeve engaged with the side of the fixed toothed sleeve, a keyway shaft slidably connected inside the movable toothed sleeve via a keyway, the keyway shaft being fixed to a pressure rod, a contraction spring sleeved on the surface of the keyway shaft, one end of the contraction spring being connected to the movable toothed sleeve, the other end of the contraction spring being connected to the pressure rod, and a compression plate being provided on the surface of the support rod, the surface of the compression plate abutting against the side of the movable toothed sleeve.

[0014] Compared with the prior art, the present invention provides a driving wheel quenching fixture, which has the following beneficial effects: 1. This drive wheel quenching fixture, through the set lever pressure component, can use the lever principle to use the gravity of the drive wheel itself as the driving force, control the upper pressure plate to tightly press against the upper surface of the drive wheel, directly covering and protecting the drive wheel's width position, thus ensuring that during the overall quenching of the drive wheel, only the tooth root and tooth socket position can be rapidly cooled and quenched, while the upper and lower width positions of the drive wheel are sealed and protected, and cooling water will not act on their surface, ultimately facilitating the subsequent multiple processing steps of the drive wheel.

[0015] 2. This drive wheel quenching fixture, through the set testing mechanism, can automatically detect the air pressure in the space formed by the upper and lower pressure plates using the buoyancy of the water surface. When air leakage occurs, it can provide the operator with instructions immediately, avoiding the situation where the upper and lower pressure plates cannot be sealed when pressed due to unevenness of the upper and lower planes of the drive wheel 6, and further improving the stability of the entire fixture during hoisting and quenching.

[0016] 3. This drive wheel quenching fixture can automatically flip the upper pressure plate through the set flipping device, thereby simplifying the operation of the operator and making the entire fixture more convenient to use, and making hoisting quenching faster, thereby improving the overall quenching efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the drive wheel structure in this invention; Figure 2 This is a schematic diagram of the overall structure of a drive wheel quenching fixture proposed in this invention; Figure 3 This is a schematic diagram of the lever pressing assembly structure of a drive wheel quenching fixture proposed in this invention; Figure 4 This is a schematic diagram of the lower pressure plate structure of a drive wheel quenching fixture proposed in this invention; Figure 5 This is a schematic diagram of the testing mechanism for a drive wheel quenching fixture proposed in this invention; Figure 6This is a schematic diagram of the flipping mechanism of a drive wheel quenching fixture proposed in this invention; Figure 7 This is a schematic diagram of a one-way device structure for a drive wheel quenching fixture proposed in this invention. Figure 8 This is a schematic diagram of the support rod structure of a drive wheel quenching fixture proposed in this invention.

[0018] In the diagram: 1. Hanging chain; 2. Base frame; 3. Bar pressure assembly; 31. Pressure bar; 32. Fixing frame; 33. Fixing gear; 34. Inclined pressure plate; 35. Support toothed plate; 36. Guide rod; 37. Guide frame; 38. Extrusion frame; 39. Compression spring; 40. Sliding rod; 4. Upper pressure plate; 5. Lower pressure plate; 51. Width groove; 52. Through hole; 6. Drive wheel; 7. Testing mechanism; 701. Float; 702. Piston plate; 703. Pneumatic... 704. Connecting tube; 705. Air duct; 706. Conduit; 707. Transparent tube; 708. Lifting plate; 709. Identifying rod; 8. Flipping mechanism; 801. Arc frame; 802. Support; 803. Arc groove; 804. Support rod; 805. Guide sleeve; 806. One-way device; 8061. Fixed toothed sleeve; 8062. Movable toothed sleeve; 8063. Contraction spring; 8064. Keyway shaft; 8065. Extrusion plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-8 A drive wheel quenching fixture includes a lifting chain 1; a base frame 2; a drive wheel 6; an upper pressure plate 4 and a lower pressure plate 5, with the drive wheel 6 located between the upper pressure plate 4 and the lower pressure plate 5; a lever pressing assembly 3, which uses the weight of the drive wheel 6 itself to control the upper pressure plate 4 and the lower pressure plate 5 to press and seal the surface of the drive wheel 6; a testing mechanism 7, used to test whether the seal between the upper pressure plate 4 and the lower pressure plate 5 is tight; and a flipping mechanism 8, used to control the flipping and repositioning of the upper pressure plate 4; the lower pressure plate 5 is mounted on the base frame 2, and both the lever pressing assembly 3 and the testing mechanism 7 are mounted on the base frame 2.

[0021] In this embodiment, the lever assembly 3 includes a fixing frame 32, the bottom of which is fixed to the base frame 2. A pressure rod 31 is rotatably connected to the fixing frame 32. One end of the pressure rod 31 abuts against the upper pressure plate 4, and the other end is connected to the lifting chain 1. When the drive wheel 6 is placed on the lower pressure plate 5 on the base frame 2, the overall weight of the drive wheel 6 acts on the base frame 2. The pressure rod 31 is then subjected to the weight of the lifting, which will use the lever principle to control the end face of the pressure rod 31 to press tightly against the upper pressure plate 4. At this time, the drive wheel 6 will be sandwiched between the upper pressure plate 4 and the lower pressure plate 5, forming a "hamburger" shape. The main function of this part is to seal the upper and lower planes of the drive wheel 6 to prevent the surface of the drive wheel 6 from being hardened during water cooling.

[0022] Furthermore, the lever pressing assembly 3 also includes an alignment device, which includes a fixed gear 33. The fixed gear 33 is fixed at the connection between the pressing rod 31 and the fixed frame 32. The surface of the fixed gear 33 is engaged with a support tooth plate 35. The support tooth plate 35 is slidably connected to the fixed frame 32. An inclined pressure plate 34 is fixedly connected to the left side of the support tooth plate 35. A guide rod 36 is slidably connected to the fixed frame 32. A guide frame 37 is connected to the left end of the guide rod 36. A sliding rod 40 is slidably connected to the guide frame 37. A compression spring 39 is sleeved on the surface of the sliding rod 40. An extrusion frame 38 is connected to the right end of the sliding rod 40. A roller is provided on the extrusion frame 38. The surface of the roller abuts against the inclined pressure plate 34. When the lever 31 rotates, it drives the fixed gear 33 to rotate. The meshing of the gears causes the support toothed plate 35 to move downwards, which in turn causes the inclined pressure plate 34 to move downwards. Then, through the rolling contact between the inclined surface and the roller, the lateral sliding of the extrusion frame 38 is controlled, providing inward extrusion force and pushing the guide frame 37 to move, thus contacting and moving against the surface of the drive wheel 6. The two V-shaped guide frames 37 push the middle drive wheel 6 to align. Two alignment devices are provided, symmetrically distributed about the center line of the base frame 2. An inclined sliding plate is provided on the top of the guide frame 37. The sliding plate is designed to allow the operator to easily slide the drive wheel 6 onto the lower pressure plate 5 during the initial stage, thus providing a certain degree of guidance.

[0023] Furthermore, the upper pressure plate 4 and the lower pressure plate 5 have the same structure. The lower pressure plate 5 has multiple width grooves 51 inside, which correspond to the upper and lower widths of the drive wheel 6, and the multiple width grooves 51 are interconnected through through holes 52. The testing mechanism 7 includes a float 701, which is located below the base frame 2. A piston plate 702 is connected to the float 701 through a connecting rod. A gas sleeve 703 is slidably connected to the surface of the piston plate 702. The gas sleeve 703 is fixed to the base frame 2 and is connected to a connecting pipe 704, which is connected to the width grooves 51. Considering that although the upper pressure plate 4 and the lower pressure plate 5 are pressing on the surface of the drive wheel 6, it cannot be guaranteed that the upper and lower planes of the drive wheel 6 are not flat, resulting in gaps. If quenching is performed directly, cooling water will enter from the gaps in the pressure plates, directly causing the sealing protection of the drive wheel 6 to fail. When the bottom of the tooling is fully immersed in the cooling water, the float 701 will be buoyed by the water surface and move upward. This will cause the piston plate 702 to move upward via the connecting rod. The piston plate 702 will then compress the air inside the air jacket 703 and deliver the air pressure through the connecting pipe 704 to the inside of the width groove 51. Since the multiple width grooves 51 are connected in series, the air pressure will act on the inside of multiple width grooves 51. If there is air leakage, bubbles will appear on the water surface.

[0024] In addition, an air intake pipe 705 is connected to the air jacket 703. The air intake pipe 705 is connected to a width groove 51 on the upper pressure plate 4. A conduit 706 is connected to the width groove 51 on the upper pressure plate 4. A transparent tube 707 is connected to the conduit 706. A lifting plate 708 is slidably connected inside the transparent tube 707. An indicator rod 709 is provided on the lifting plate 708. Through the connection of the air intake pipe 705, air pressure is also delivered to the width groove 51 of the upper pressure plate 4. Then, the air pressure enters the transparent tube 707 through the conduit 706. When the upper pressure plate 4 and the lower pressure plate 5 are in sealed contact, the air pressure will squeeze the lifting plate 708 inside the transparent tube 707, causing it to rise to a certain height and drive the indicator rod 709 to rise. The operator can directly judge whether the drive wheel 6 is in a relatively compressed and sealed stage based on the rise of the indicator rod 709. If it is not in a sealed state, the air pressure will be discharged from a leaking position, and the indicator rod 709 will not rise, or it will slowly slide down after rising. Therefore, the operator can judge whether the drive wheel 6 is in a sealed and compressed state based on the indicator, which is convenient for the subsequent quenching operation.

[0025] In addition, the flipping mechanism 8 includes an arc-shaped frame 801, which is mounted on the upper pressure plate 4. A bracket 802 is slidably connected to the arc-shaped frame 801, and the bracket 802 is connected to one of the four pressure rods 31. A support rod 804 is connected to the side of the upper pressure plate 4, and a guide sleeve 805 is slidably connected to the surface of the support rod 804. A one-way device 806 is provided on the guide sleeve 805. An arc-shaped groove 803 is provided inside the arc-shaped frame 801, and the pressure rod 31 is slidably connected inside the arc-shaped groove 803. Considering that manual handling may be too laborious for the automatic flipping of the upper pressure plate 4, the flipping mechanism 8 is designed to flip the upper pressure plate 4 to make way. When one of the pressure rods 31 is reversed and untied, it will gradually slide inside the arc-shaped groove 803 through the connection of the bracket 802. When it is reversed to a certain angle, it will abut against the arc-shaped frame 801, thereby driving the arc-shaped frame 801 to flip synchronously.

[0026] Furthermore, the one-way device 806 includes a fixed toothed sleeve 8061, which is fixed on the guide sleeve 805. A movable toothed sleeve 8062 is engaged with the side of the fixed toothed sleeve 8061. A keyway shaft 8064 is slidably connected inside the movable toothed sleeve 8062 via a keyway. The keyway shaft 8064 is fixed on the pressure rod 31. A contraction spring 8063 is sleeved on the surface of the keyway shaft 8064. One end of the contraction spring 8063 is connected to the movable toothed sleeve 8062, and the other end of the contraction spring 8063 is connected to the pressure rod 31. A pressing plate 8065 is provided on the surface of the support rod 804. The surface of the pressing plate 8065 abuts against the side of the movable toothed sleeve 8062. Considering that during the initial placement of the drive wheel 6, the order is to place the upper pressure plate 4 first, and then control the abutment of the pressure rod 31, a one-way device 806 is set up. During the initial installation, the teeth of the movable toothed sleeve 8062 and the fixed toothed sleeve 8061 engage in reverse, instantly driving the rotation of the guide sleeve 805. Then, through the connection of the support rod 804, the upper pressure plate 4 is rotated, causing it to rotate above the drive wheel 6. Then, under the gravity of the upper pressure plate 4, it slides down, causing the support rod 804 to slide down a certain distance. After that, the pressing plate 8065 is controlled to abut and slide against the movable toothed sleeve 8062, controlling the axial sliding of the movable toothed sleeve 8062 a small distance, realizing the disengagement of the movable toothed sleeve 8062 and the fixed toothed sleeve 8061. Then, due to the gravity lever, it continues to press against the upper pressure plate 4 to achieve abutment and sealing.

[0027] The working principle is as follows: First, the operator needs to place the drive wheel 6 on the lower pressure plate 5 on the base frame 2, and then rotate the drive wheel 6 to control the position of the drive wheel 6 to correspond with the groove 51 on the lower pressure plate 5. Then, the crane is used to lift the connection of the four lifting chains 1. At this time, the overall weight of the drive wheel 6 acts on the base frame 2, and the pressure rod 31 is subjected to the weight of the lifting. It will use the lever principle to control the end face position of the pressure rod 31 to press tightly against the upper pressure plate 4. At this time, the drive wheel 6 will be sandwiched in the middle by the upper pressure plate 4 and the lower pressure plate 5, forming a "hamburger" shape. The main function of this part is to seal the contact between the upper and lower planes of the drive wheel 6 to prevent the drive wheel 6 from being hardened during water cooling. When the lever 31 rotates, it will drive the fixed gear 33 to rotate. Through the meshing of the gear, the support tooth plate 35 will move downward, which in turn will drive the inclined pressure plate 34 to move downward. Then, through the rolling contact between the inclined surface and the roller, the lateral sliding of the extrusion frame 38 will be controlled, thereby providing inward extrusion force, pushing the guide frame 37 to move, and then abutting against the surface of the drive wheel 6. The two V-shaped guide frames 37 will push the middle drive wheel 6 to align its position, avoiding misalignment when the drive wheel 6 is placed. The entire thrust is provided by the extrusion force of the compression spring 39. Because when the lever is actually pressed, if the outer diameter of the drive wheel 6 is too large, the guide frame 37 will abut against the drive wheel 6 before the lever 31 presses on it, causing the support tooth plate 35 to be unable to move downward, forming a jam with the fixed gear 33. Therefore, the lever 31 will not be able to rotate and will be pressed down to the limit position. Therefore, an elastic compression method was designed. First, when the guide frame 37 reaches the surface of the drive wheel 6, the inclined pressure plate 34 will continue to move downward, controlling the sliding rod 40 to compress the compression spring 39, so that gear jamming will not occur. Afterwards, the operator controls the crane to place the entire fixture on the water surface, but it cannot be directly immersed in the cooling water at the beginning. This is because although the upper pressure plate 4 and the lower pressure plate 5 are pressing on the surface of the drive wheel 6, it cannot be guaranteed that the upper and lower planes of the drive wheel 6 are uneven, resulting in gaps. If quenching is performed directly, cooling water will enter from the gaps in the pressure plates, directly causing the sealing protection of the drive wheel 6 to fail. Therefore, a testing mechanism 7 was set up on this basis. When the bottom of the tooling is fully immersed in the cooling water, the float 701 will be buoyed by the water surface and move upward. The piston plate 702 will move upward through the connecting rod. Then the piston plate 702 will compress the air inside the air jacket 703 and deliver the air pressure to the inside of the width groove 51 through the connecting pipe 704. Since multiple width grooves 51 are connected in series, the air pressure will act inside each width groove 51. And through the connection of the air duct 705, the air pressure will also be delivered to the inside of the width groove 51 of the upper pressure plate 4. Then the air pressure will enter the inside of the transparent tube 707 through the conduit 706.When the upper pressure plate 4 and the lower pressure plate 5 are in sealed contact, the air pressure will squeeze the lifting plate 708 inside the transparent tube 707, causing it to rise to a certain height and drive the indicator rod 709 to rise. The operator can directly judge whether the drive wheel 6 is in a relatively compressed and sealed stage based on the rise of the indicator rod 709. If it is not in a sealed state, the air pressure will be discharged from a leaking position, and the indicator rod 709 will not rise, or it will slowly slide down after rising. Therefore, the operator can judge whether the drive wheel 6 is in a sealed and compressed state based on the indicator. If it is not in a sealed state, the entire fixture will be returned to its original position for re-clamping or re-machining of the upper and lower surfaces of the drive wheel 6. Subsequently, if the device is in a sealed state, the operator directly controls the crane to submerge the entire tooling in water for water cooling and quenching. Once cooled to the required temperature or after the required time, the operator controls the crane to lift the entire tooling from the water and transfer it to the ground. At this point, the bottom of the support toothed plate 35 will first contact the ground, and then the support toothed plate 35 will be forced to move upward, relieving the lateral pressure on the guide frame 37 caused by the downward movement of the inclined pressure plate 34, which is to "untie" the drive wheel 6. At the same time, the upward movement of the support toothed plate 35 will also drive the fixed gear 33 to reverse through the meshing of the teeth, thereby causing multiple pressure rods 31 to loosen their contact with the upper pressure plate 4, ultimately achieving multi-directional "untying" until the bottom of the support toothed plate 35 is flush with the base frame 2 and acts on the ground. However, considering the automatic flipping of the upper pressure plate 4, manual handling might be too laborious. Therefore, the flipping mechanism 8 is designed to flip and make way for the upper pressure plate 4. When one of the pressure rods 31 is flipped and untied, it will gradually slide inside the arc groove 803 through the connection of the bracket 802. When it is flipped to a certain angle, it will abut against the arc frame 801, thereby driving the arc frame 801 to flip synchronously, and thus driving the upper pressure plate 4 to rotate around the center of the guide sleeve 805. Considering that the other three pressure rods 31 abut against the upper pressure plate 4 in the initial stage, if the flipping starts directly from the beginning, the other three pressure rods 31 will block the upper pressure plate 4 and restrict its flipping. Therefore, the upper pressure plate 4 can only be allowed to flip after the pressure rods 31 have rotated to a certain angle and made way, because there is no obstruction above the upper pressure plate 4 at this time. Furthermore, considering that during the initial placement of the drive wheel 6, the order is to place the upper pressure plate 4 first, and then control the contact of the pressure rod 31, a one-way device 806 is set up. During the initial installation, the teeth of the movable toothed sleeve 8062 and the fixed toothed sleeve 8061 engage. Since the movable toothed sleeve 8062 and the fixed toothed sleeve 8061 are in the forward and reverse tooth states, the direction of rotation depends on whether they are in the forward or reverse tooth state.This will instantly drive the rotation of the guide sleeve 805, which, through the connection of the support rod 804, will cause the upper pressure plate 4 to flip, rotating it first to above the drive wheel 6. Then, under the gravity of the upper pressure plate 4, it will slide down, causing the support rod 804 to slide down a certain distance. After that, the pressing plate 8065 will be controlled to slide against the movable toothed sleeve 8062, controlling the movable toothed sleeve 8062 to slide axially a small distance, realizing the disengagement of the movable toothed sleeve 8062 and the fixed toothed sleeve 8061. Then, the pressure rod 31 will be subjected to the principle of gravity lever, causing its end face to press against the upper pressure plate 4. The final process achieves the initial sealing. First, the upper pressure plate 4 will be controlled to flip and move to above the drive wheel 6. When the drive wheel 6 is removed, it will be loosened first to make room, and then the upper pressure plate 4 will be controlled to flip.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A quenching fixture for a drive wheel, characterized in that, include: Hanging chain (1); Base frame (2); Drive wheel (6); Upper pressure plate (4) and lower pressure plate (5), with the drive wheel (6) located between the upper pressure plate (4) and the lower pressure plate (5); The lever pressure assembly (3) uses the gravity of the drive wheel (6) itself to control the upper pressure plate (4) and the lower pressure plate (5) to press and seal the surface of the drive wheel (6); The testing mechanism (7) is used to test whether the seals of the upper pressure plate (4) and the lower pressure plate (5) are tight; A flipping mechanism (8) is used to control the flipping and repositioning of the upper pressure plate (4); The lower pressure plate (5) is mounted on the base frame (2), and the bar pressure assembly (3) and the testing mechanism (7) are both mounted on the base frame (2); The lever pressure assembly (3) includes a fixed frame (32), the bottom of which is fixed to the base frame (2), and a pressure rod (31) is rotatably connected to the fixed frame (32). One end of the pressure rod (31) abuts against the upper pressure plate (4), and the other end of the pressure rod (31) is connected to the hanging chain (1). The upper pressure plate (4) and the lower pressure plate (5) have the same structure. The lower pressure plate (5) has multiple width slots (51) inside. The width slots (51) correspond to the upper and lower widths of the drive wheel (6), and the multiple width slots (51) are interconnected through the through holes (52). The testing mechanism (7) includes a float (701) located below the base frame (2). A piston plate (702) is connected to the float (701) via a connecting rod. An air sleeve (703) is slidably connected to the surface of the piston plate (702). The air sleeve (703) is fixed on the base frame (2). A connecting pipe (704) is connected to the air sleeve (703). The connecting pipe (704) is connected to the width groove (51). The air jacket (703) is also connected to an air intake pipe (705), which is connected to a width groove (51) on the upper pressure plate (4). The width groove (51) on the upper pressure plate (4) is connected to a conduit (706), which is connected to a transparent tube (707). A lifting plate (708) is slidably connected inside the transparent tube (707), and an indicator rod (709) is provided on the lifting plate (708). The flipping mechanism (8) includes an arc frame (801), which is mounted on the upper pressure plate (4). A bracket (802) is slidably connected to the arc frame (801). The bracket (802) is connected to one of the four pressure rods (31). A support rod (804) is connected to the side of the upper pressure plate (4). A guide sleeve (805) is slidably connected to the surface of the support rod (804). A one-way device (806) is provided on the guide sleeve (805). The arc-shaped frame (801) has an arc-shaped groove (803) inside, and the pressure rod (31) is slidably connected inside the arc-shaped groove (803); The one-way device (806) includes a fixed toothed sleeve (8061), which is fixed on the guide sleeve (805). A movable toothed sleeve (8062) is snapped onto the side of the fixed toothed sleeve (8061). A keyway shaft (8064) is slidably connected inside the movable toothed sleeve (8062) through a keyway. The keyway shaft (8064) is fixed on the pressure rod (31). A contraction spring (8063) is sleeved on the surface of the keyway shaft (8064). One end of the contraction spring (8063) is connected to the movable toothed sleeve (8062), and the other end of the contraction spring (8063) is connected to the pressure rod (31). A pressing plate (8065) ​​is provided on the surface of the support rod (804). The surface of the pressing plate (8065) ​​abuts against the side of the movable toothed sleeve (8062).

2. The drive wheel quenching fixture according to claim 1, characterized in that: The lever pressing assembly (3) also includes an alignment device, which includes a fixed gear (33) fixed at the connection between the pressing rod (31) and the fixed frame (32). The surface of the fixed gear (33) is meshed with a support tooth plate (35). The support tooth plate (35) is slidably connected to the fixed frame (32). An inclined pressure plate (34) is fixedly connected to the left side of the support tooth plate (35). A guide rod (36) is slidably connected to the fixed frame (32). A guide frame (37) is connected to the left end of the guide rod (36). A sliding rod (40) is slidably connected to the guide frame (37). A compression spring (39) is sleeved on the surface of the sliding rod (40). An extrusion frame (38) is connected to the right end of the sliding rod (40). A roller is provided on the extrusion frame (38). The surface of the roller abuts against the inclined pressure plate (34).

3. The drive wheel quenching fixture according to claim 2, characterized in that: Two alignment devices are provided, and the two alignment devices are symmetrically distributed with the center line of the base frame (2) as the axis of symmetry. The top of the guide frame (37) is provided with a sliding plate with an inclined angle.

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