Piston rod heat treatment cooler

Abstract

The utility model discloses a heat treatment cooler for a piston rod, which relates to the technical field of heat treatment and comprises a mounting plate and further comprises a residual stress removing mechanism which is arranged above the mounting plate and removes residual stress inside the piston rod through vibration. A second driving motor is fixedly installed on the motor base, a first belt wheel is fixedly installed at the output end of the second driving motor, and the first belt wheel is connected with a second belt wheel through a transmission belt. The belt pulley and the semicircular balancing weight are driven by the second driving motor to rotate, so that the conveying plate vibrates up and down continuously, residual stress generated in the heat treatment process of the piston rod can be eliminated, the problem that the piston rod is broken due to stress concentration is solved, the reliability of a product is improved, and the service life of the product is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of heat treatment technology, specifically a piston rod heat treatment cooler. Background Technology

[0002] As the name suggests, the piston rod is the connecting component that supports the piston in performing work. It is mostly used in hydraulic cylinders and pneumatic cylinders, and is a moving component with frequent movement and high technical requirements. Taking a hydraulic cylinder as an example, it consists of several parts: cylinder barrel, piston rod (cylinder rod), piston, and end cap. The quality of its machining directly affects the lifespan and reliability of the entire product. The piston rod requires high machining standards, with a surface roughness requirement of Ra0.4~0.8um, and strict requirements for coaxiality and wear resistance. A fundamental characteristic of the cylinder rod is its slender shaft shape, which presents significant machining challenges and has long been a problem for machining personnel. Existing piston rods generally require heat treatment to improve their overall performance for better use.

[0003] The heat treatment air-cooling platform disclosed in CN202595196U provides a simple, efficient, and practical heat treatment air-cooling platform, including an air-cooling platform housing and a blower. The air-cooling platform housing is sealed on all four sides and has air inlets and outlets. The blower is installed at the air inlet, and the air outlet is located on the top surface of the air-cooling platform housing, with an adjustable size. The application of this air-cooling platform effectively avoids the aforementioned defects, ensuring both rapid air cooling and uniform cooling. It also collects waste such as oxide scale and residual salts from heat treatment, reducing environmental pollution. It is a device that enables rapid and uniform air cooling during metal heat treatment while simultaneously collecting waste generated during the process.

[0004] However, the aforementioned piston rod heat treatment coolers often lack flexibility and fail to eliminate the concentrated stress inside the piston rod after cooling. To solve these problems, this utility model proposes an innovative piston rod heat treatment cooler. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model proposes a piston rod heat treatment cooler.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A piston rod heat treatment cooler, including a mounting plate, and further comprising...

[0008] A residual stress removal mechanism, located above the mounting plate, removes residual stress inside the piston rod through vibration.

[0009] The residual stress removal mechanism includes a motor base, on which a second drive motor is fixedly mounted. A first pulley is fixedly mounted at the output end of the second drive motor. The first pulley is connected to the second pulley via a transmission belt. A rotating shaft is fixedly mounted on the second pulley, and two semi-circular counterweights are provided on the rotating shaft.

[0010] As a further preferred embodiment of this technical solution: a cooling box is detachably mounted on top of the mounting plate, and the cooling box is equipped with a pitch-changing mechanism, wherein...

[0011] The variable pitch mechanism includes a first drive motor, and a first connecting rod is fixedly installed at the output end of the first drive motor. The two ends of the first connecting rod are respectively offset and rotatably connected to a second connecting rod. A first connecting frame is rotatably installed at the end of each second connecting rod away from the first connecting rod. Several connecting shafts arranged at equal intervals are fixedly installed on each first connecting frame. A wheel seat is fixedly installed at the upper end of the connecting shaft, and a pulley is rotatably installed on the wheel seat.

[0012] As a further preferred embodiment of this technical solution: a support frame is detachably mounted on the mounting plate, and four secondary connecting frames are provided on the support frame. The lower end of each secondary connecting frame is fixedly connected to the top surface of the support frame, and the other end of each secondary connecting frame is fixedly connected to a conveying plate. The motor base is fixedly mounted on the side wall of the conveying plate, and two semi-circular counterweights are respectively arranged on both sides of the conveying plate.

[0013] As a further preferred embodiment of this technical solution: a collection box is provided on the mounting plate, and a cushioning pad is placed inside the collection box.

[0014] As a further preferred embodiment of this technical solution: the collection box is arranged on one side of the conveyor plate, the cooling box is arranged on the other side of the conveyor plate, and the height of the end of the conveyor plate near the cooling box is higher than the height of the end near the collection box.

[0015] As a further preferred embodiment of this technical solution: a fixing frame is fixedly installed on both the upper and lower inner walls of the cooling box, and an air-cooling component is provided on the fixing frame.

[0016] As a further preferred embodiment of this technical solution: the cooling box is provided with a sliding groove, and the plurality of connecting shafts slide one-to-one inside the sliding groove.

[0017] As a further preferred embodiment of this technical solution: a motor frame for supporting the No. 1 drive motor is fixedly mounted on the mounting plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this utility model, after the piston rod is air-cooled, the pulley and semi-circular counterweight driven by the No. 2 drive motor rotate, realizing the continuous up-and-down vibration of the conveying plate. This helps to eliminate the residual stress generated by the piston rod during the heat treatment process, avoids the problem of piston rod breakage caused by stress concentration, and improves the reliability and service life of the product. In addition, the buffer pad in the collection box ensures the stability and safety of the piston rod during the conveying and collection process, and reduces damage caused by bumps.

[0020] 2. In this utility model, the movement of the connecting rod and the connecting frame driven by the No. 1 drive motor ensures the precise adjustment of the pulley spacing, enabling the cooler to support and cool piston rods of various sizes, thereby improving the utilization rate of the equipment and reducing the cost of replacing equipment or adjusting the process. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0023] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0024] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0025] Legend: 1. Mounting plate; 2. Cooling box; 21. Slide groove; 3. Motor frame; 4. Pitch change mechanism; 41. Drive motor No. 1; 42. Connecting rod No. 1; 43. Connecting rod No. 2; 44. Connecting frame No. 1; 45. Connecting shaft; 46. Wheel seat; 47. Pulley; 5. Fixing frame; 6. Air-cooling assembly; 7. Support frame; 8. Residual stress removal mechanism; 81. Motor seat; 82. Drive motor No. 2; 83. Pulley No. 1; 84. Transmission belt; 85. Pulley No. 2; 86. Semi-circular counterweight; 87. Rotating shaft; 9. Conveying plate; 10. Connecting frame No. 2; 11. Spring; 12. Collection box; 13. Buffer pad. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1:

[0028] Please see Figures 1-4 This application provides a piston rod heat treatment cooler, including a mounting plate 1 and a residual stress removal mechanism 8, which is disposed above the mounting plate 1. The residual stress removal mechanism removes residual stress inside the piston rod through vibration. The residual stress removal mechanism 8 includes a motor base 81, on which a second drive motor 82 is fixedly mounted. A first pulley 83 is fixedly mounted at the output end of the second drive motor 82. The first pulley 83 is connected to a second pulley 85 via a transmission belt 84. A rotating shaft 87 is fixedly mounted on the second pulley 85, and two semi-circular counterweights 86 are provided on the rotating shaft 87. A support frame 7 is detachably mounted on the mounting plate 1, and four second connecting frames 10 are provided on the support frame 7. The lower end of each second connecting frame 10 is fixedly connected to the top surface of the support frame 7. The other end is fixedly connected to a conveyor plate 9. The motor base 81 is fixedly installed on the side wall of the conveyor plate 9, and two semi-circular counterweights 86 are respectively arranged on both sides of the conveyor plate 9. Specifically, after air cooling, the piston rod is pushed out from the inside of the cooling box 2 by a robotic arm and falls into the inside of the conveyor plate 9. At the same time, the second drive motor 82 is started to drive the first pulley 83 to rotate. The first pulley 83 drives the second pulley 85 to rotate through the transmission belt 84. The second pulley 85 drives the rotating shaft 87 to rotate. The rotating shaft 87 drives the semi-circular counterweights 86 on it to rotate. Under the influence of the gravity of the semi-circular counterweights 86 and the elastic force of the spring 11, the conveyor plate 9 vibrates up and down continuously, avoiding the problem of piston rod breakage caused by stress concentration, and improving the reliability and service life of the product.

[0029] A collection box 12 is provided on the mounting plate 1. A buffer pad 13 is placed inside the collection box 12. The piston rod slides down from the conveyor plate 9 and falls into the collection box 12. The buffer pad 13 inside the collection box 12 can reduce the impact after the piston rod falls. The collection box 12 is arranged on one side of the conveyor plate 9, and the cooling box 2 is arranged on the other side of the conveyor plate 9. The height of the end of the conveyor plate 9 near the cooling box 2 is higher than the height of the end near the collection box 12. The conveyor plate 9 is arranged slightly at an angle so that the piston rod can be transported on the conveyor plate 9. The specific angle is set according to the actual situation.

[0030] Example 2:

[0031] Based on Embodiment 1, a cooling box 2 is detachably installed on the top of the mounting plate 1. A pitch-changing mechanism 4 is provided on the cooling box 2. The pitch-changing mechanism 4 includes a primary drive motor 41. A primary connecting rod 42 is fixedly installed at the output end of the primary drive motor 41. A secondary connecting rod 43 is rotatably connected to the two ends of the primary connecting rod 42, offset from the primary connecting rod 42. A primary connecting frame 44 is rotatably installed at the end of each secondary connecting rod 43 away from the primary connecting rod 42. Several equidistant connecting shafts 45 are fixedly installed on each primary connecting frame 44. A wheel seat 46 is fixedly installed at the upper end of each connecting shaft 45, and a pulley 47 is rotatably installed on the wheel seat 46. Fixing frames 5 are fixedly installed on the upper and lower inner walls of the cooling box 2. An air-cooling assembly 6 is provided on the fixing frame 5. The air-cooling assembly 6 is existing technology and can specifically be an air-cooled machine to cool the piston rod. A sliding groove 21 is provided on the cooling box 2, and multiple connecting shafts 45 slide one-to-one inside the sliding groove 21. A useful... The heat-treated piston rod is inserted between two pulleys 47 by using an external robotic arm on the motor frame 3 supporting the first drive motor 41. Before this, the first drive motor 41 can be started to drive the first connecting rod 42 to rotate. The first connecting rod 42 drives the two second connecting rods 43 to rotate. Each second connecting rod 43 drives the first connecting frame 44 connected to it to move. Since the connecting shaft 45 slides inside the slide groove 21, the connecting shaft 45 can move linearly along the slide groove 21. Each connecting shaft 45 drives the wheel seat 46 on it to move. The wheel seat 46 drives the pulley 47 to move, thereby adjusting the distance between the two pulleys 47. This allows the distance between the two pulleys 47 to be adjusted according to the diameter of the piston rod, so that it can be used for piston rods of different diameters. The piston rod is supported inside the cooling box 2 and air-cooled by the air-cooling component 6 on the fixed frame 5. It is highly flexible. The piston rod can be moved back and forth by the external robotic arm to cool the part of the piston rod in contact with the pulley 47.

[0032] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A piston rod heat treatment cooler comprising a mounting plate (1), characterized in that, Also include Residual stress removal mechanism (8) is arranged above the mounting plate (1), remove the residual stress inside the piston rod by vibration, wherein, The residual stress removal mechanism (8) includes motor base (81), the second drive motor (82) is fixedly installed on the motor base (81), the output end of the second drive motor (82) is fixedly installed with a first belt pulley (83), the first belt pulley (83) is connected with a second belt pulley (85) through a transmission belt (84), the second belt pulley (85) is fixedly installed with a rotating shaft (87), and the rotating shaft (87) is provided with two semicircular counterweights (86).

2. A piston rod heat treatment cooler according to claim 1, characterized in that The cooling box (2) is detachably installed above the mounting plate (1), and the variable distance mechanism (4) is arranged on the cooling box (2), wherein The variable distance mechanism (4) includes a first drive motor (41), a first connecting rod (42) is fixedly installed on the output end of the first drive motor (41), and a second connecting rod (43) is rotationally connected to one end of the first connecting rod (42) in a staggered manner, one first connecting frame (44) is rotationally installed at the end of each second connecting rod (43) away from the first connecting rod (42), a plurality of connecting shafts (45) are fixedly installed on each first connecting frame (44) in an equidistant manner, a wheel seat (46) is fixedly installed on the upper end of the connecting shaft (45), and a pulley (47) is rotationally installed on the wheel seat (46).

3. A piston rod heat treatment cooler according to claim 1, characterized in that The supporting frame (7) is detachably installed on the mounting plate (1), four second connecting frames (10) are arranged on the supporting frame (7), the lower end of each second connecting frame (10) is fixedly connected to the top surface of the supporting frame (7), a conveying plate (9) is fixedly connected to the other end of each second connecting frame (10), the motor base (81) is fixedly installed on the side wall of the conveying plate (9), and the two semicircular counterweights (86) are arranged on the two sides of the conveying plate (9).

4. A piston rod heat treatment cooler according to claim 2, characterized in that The collecting box (12) is arranged on one side of the conveying plate (9), the cooling box (2) is arranged on the other side of the conveying plate (9), and the height of the end of the conveying plate (9) close to the cooling box (2) is higher than the height of the end close to the collecting box (12).

5. A piston rod heat treatment cooler according to claim 4, characterized in that The upper inner wall and the lower inner wall of the cooling box (2) are fixedly installed with a fixed frame (5), and the fixed frame (5) is provided with an air cooling assembly (6).

6. A piston rod heat treatment cooler according to claim 2, characterized in that The cooling box (2) is provided with a chute (21), and a plurality of connecting shafts (45) are slid in the chute (21) one by one.

7. A piston rod heat treatment cooler according to claim 2, characterized in that The mounting plate (1) is fixedly installed with a motor frame (3) for supporting the first drive motor (41).

8. A piston rod heat treatment cooler according to claim 2, characterized in that ​

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