Integrated continuous heat treatment equipment based on cylinder heat treatment process

Abstract

The invention discloses integrated continuous heat treatment equipment based on an air cylinder heat treatment process, and relates to the technical field of air cylinder sleeve heat treatment. According to the integrated continuous heat treatment equipment, the irradiation angle is prevented from being changed when the position of a laser heating assembly is changed, the whole laser heating assembly is movably connected with a rotating shell, and a guide plate is slidably connected into a groove channel in the inner side of a storage arc plate; the guide plate is clamped with the outer wall of the laser heating assembly, the laser heating assembly synchronously drives the guide plate to slide in the rotating process, the laser heating assembly and the guide plate synchronously slide, and finally the distance between the laser heating assembly and the inner wall of the cylinder sleeve is adjusted under the condition that the irradiation angle of the laser heating assembly is not changed. Therefore, the most effective distance value from the laser processing focus to the surface of the cylinder sleeve is obtained.

Description

Technical Field

[0001] The invention relates to the technical field of cylinder liner heat treatment, in particular to an integrated continuous heat treatment device based on a cylinder heat treatment process. Background Art

[0002] Heat treatment of the outer cylinder liner in the cylinder production process is an important manufacturing process, which significantly improves the wear resistance and service life of the cylinder liner. The common cylinder liner heat treatment is usually prepared with sodium nitrite and sodium nitrate in a ratio of 1:1 to make a solution. The solution is heated to 400℃, and the cylinder liner is placed in it and heated to 420℃, maintained for 20 minutes, taken out and placed in room temperature engine oil for 25 seconds, and then taken out and drained of the engine oil, so that a bronze oxide layer is formed on the surface of the cylinder liner;

[0003] The new cylinder liner heat treatment technology uses laser to quickly heat up. For example, in the patent with publication number CN114480816A, the movable connecting plate is driven to move along the axis direction of the outer transmission cylinder by rotating the outer transmission cylinder. The distance between the offset adjustment rod and the outer transmission cylinder can be adjusted to adjust the placement of the cylinder liner. An arc-shaped clamping plate is provided in the clamping frame to improve the clamping performance of the cylinder liner surface. At the same time, the distance from the laser heating element to the inner surface of the cylinder liner can be adaptively adjusted to meet the requirements of inner surface heat treatment of cylinder liner sizes of different sizes.

[0004] Although the above conditions can achieve accurate heat treatment of a single cylinder liner, the overall treatment efficiency of the cylinder liner and its compatibility with the transmission assembly are not considered, which can easily lead to a decrease in the overall heat treatment efficiency of the cylinder liner and is not suitable for daily production activities.

[0005] To this end, we propose an integrated continuous heat treatment equipment based on the cylinder heat treatment process. Summary of the invention

[0006] The object of the present invention is to provide an integrated continuous heat treatment device based on a cylinder heat treatment process to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: an integrated continuous heat treatment device based on a cylinder heat treatment process, comprising a heat treatment platform and a transmission platform, a transmission platform is installed on the top of the heat treatment platform, and a telescopic control mechanism is symmetrically installed on the side of the transmission platform;

[0008] The telescopic regulating mechanism comprises a storage rack, a slide, a storage arc plate and a guide column. The storage rack is symmetrically fixed on the transmission platform side, the slide is slidably connected to the storage rack, and a threaded rod is movably connected to the storage rack side. One end of the threaded rod passes through the slide and is movably connected to the side wall of the transmission platform.

[0009] The slide side is fixedly connected with a storage arc plate, the storage arc plate side is fixedly connected with a guide column, one side of the slide is installed with a transmission component three, the end of the guide column is rotatably connected with a rotating shell, and the rotating shell is movably connected with a laser heating component.

[0010] Furthermore, the outer wall of the guide column is slidably connected to a sliding sleeve, the bottom of the sliding sleeve is rotatably connected to an abutment rod, one end of the abutment rod is movably connected to the rotating shell side, the storage arc plate is movably connected to the rotating shaft, and one end of the rotating shaft is threadedly connected to the sliding sleeve.

[0011] Furthermore, a guide plate is slidably connected in the groove of the inner wall of the arc storage plate, and one side of the guide plate is slidably connected to the outer wall of the laser heating component.

[0012] Furthermore, a slide is evenly slidably connected to the transmission platform, transmission rollers are movably connected to the inner walls on both sides of the slide, and an electric push rod is evenly fixed to the top of the transmission platform by bolts, and the ends of the electric push rod are respectively connected to the slide.

[0013] Furthermore, a transmission component 2 is symmetrically installed on the inner wall of the transmission platform, a centering plate is symmetrically slidably connected inside the transmission platform, and a side wall of the centering plate is meshingly connected with a connecting gear on the transmission component 2.

[0014] Furthermore, a transmission component 1 is fixed to one side of the heat treatment platform by bolts, an elastic conveyor belt is sleeved and connected to the transmission component 1, and a placement table is symmetrically fixed to the top of the heat treatment platform and on both sides of the elastic conveyor belt.

[0015] Furthermore, a slide rail is fixed to the top of the heat treatment platform by bolts, a pusher assembly is slidably connected to the slide rail, and a fixture side installed on the pusher assembly abuts against the elastic conveyor belt.

[0016] The integrated continuous heat treatment method of the cylinder heat treatment process is:

[0017] The cylinder sleeves are conveyed in an up-and-down manner. The batches of heat-treated cylinder sleeves are stored on the top of the placement table. The transmission component drives the elastic conveyor belt to rotate. At the same time, the electric push rod on the top of the transmission platform drives the transmission roller to move downward. The push assembly actively clamps the elastic conveyor belt. With the movement of the elastic conveyor belt, the cylinder sleeve is pushed to the top of the transmission roller. The electric push rod controls the single-side transmission roller to move upward and the other side transmission roller to move downward, so that the cylinder sleeve rolls on the transmission roller, thereby completing the placement of cylinder sleeves on multiple groups of transmission rollers.

[0018] To assist laser heating, the transmission roller moves through the electric push rod and contacts the rotating elastic conveyor belt. The elastic conveyor belt is used to realize the same-direction rotation of the transmission roller, and the cylinder sleeve located between the two transmission rollers starts to rotate in the opposite direction. At the same time, the cylinder sleeve is prevented from displacement during the movement. The second gear on the transmission component rotates, driving the centering plate to close and clamp the outer walls of the cylinder sleeve on both sides during the rotation.

[0019] The internal threaded rod of the telescopic control mechanism rotates, pushing the arc plate and the guide column on the slide side to enter the inner wall of the cylinder liner. The position of the slide sleeve on the guide column is controlled by three rotations of the transmission component to realize the rotation angle control of the rotating shell, indirectly promote the movement of the laser heating component, determine the distance between the inner wall of the cylinder liner and the laser heating component, and with the rotation of the cylinder liner, the laser heating component moving back and forth begins to heat treat the inner wall of the cylinder liner, and with the subsequent movement of the transmission roller, actively discharges the material up and down.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, under the condition of independent driving, the position between the transmission rollers is adjusted, and the contact with the elastic conveyor belt is accompanied by the work of the pusher assembly on the slide rail, so as to realize the efficient conveying operation of the cylinder sleeve. When the cylinder sleeve is conveyed and positioned, multiple groups of electric push rods on the top of the transmission platform are used to cooperate with each other to drive the transmission rollers on the slide to rise and fall while completing the handover of the cylinder sleeve, and assist the cylinder sleeve to rotate under the rotation of the elastic conveyor belt, so as to facilitate the subsequent laser heating assembly to uniformly heat the inner wall of the cylinder sleeve, thereby improving the overall heat treatment efficiency of the subsequent cylinder sleeve;

[0022] 2. In the present invention, when the inner wall of the cylinder liner is laser-treated, the laser is separated from the oblique effect on the inner wall of the cylinder liner, and the storage arc plate and the guide column are driven by the slide table to directly enter the inner wall of the cylinder liner, so that the vertical effect is more uniform and it is convenient to adjust the distance between the laser and the inner wall of the cylinder liner. The transmission component is used to drive the sliding sleeve to slide on the guide column, and the abutment rod synchronously pulls the rotating shell to rotate, so that the head of the laser heating component is rotated and discharged. At the same time, the guide plate is used to limit the rotation of the laser heating component to ensure that the laser heating component and the inner wall of the cylinder liner remain vertical, and the distance between the laser heating component and the cylinder liner is controlled, so as to facilitate the heat treatment of the inner walls of cylinder liner of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the integrated continuous heat treatment equipment of the cylinder heat treatment process of the present invention;

[0024] Figure 2 It is a schematic diagram of the top view of the structure of the integrated continuous heat treatment equipment of the cylinder heat treatment process of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the electric push rod controlling the movement of the transmission roller on the slide;

[0026] Figure 4 It is a schematic diagram of the connection structure between the centering plate and the second transmission component on the transmission platform of the present invention;

[0027] Figure 5 It is a schematic diagram of the overall structure of the telescopic regulating mechanism of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the laser heating component driven by the movement of the sliding sleeve of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure in which the transmission roller of the present invention drives the cylinder sleeve to roll when it moves.

[0030] In the figure: 1. heat treatment platform; 2. transmission component one; 3. elastic conveyor belt; 4. slide rail; 5. pusher component; 6. placement table; 7. transmission platform; 8. electric push rod; 9. slide; 10. transmission roller; 11. transmission component two; 12. centering plate; 13. telescopic adjustment mechanism; 131. storage rack; 132. slide; 133. transmission component three; 134. storage arc plate; 135. guide column; 136. threaded rod; 14. sliding sleeve; 15. abutment rod; 16. rotating shell; 17. laser heating component; 18. guide plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0032] See also Figure 1-7 , the present invention provides a technical solution:

[0033] Example 1: Please refer to Figure 1 , an integrated continuous heat treatment equipment based on the cylinder heat treatment process, used to improve the overall wear resistance and service life of the cylinder liner. Usually, when the cylinder liner is laser heat treated, it is mostly processed into a threaded shape and a mesh shape. In this way, the surface of the cylinder liner treated by laser heat treatment forms ribs formed by the hardened belt after wear, and the unhardened part is ground into a concave part, which is equivalent to an oil pool, playing a role of dynamic pressure lubrication in the relative motion of the friction pair, thereby achieving the purpose of anti-wear;

[0034] To this end, a symmetrical telescopic regulating mechanism 13 is installed on the entire side of the transmission platform 7, and a laser heating component 17 is installed at the front end of the guide column 135. The laser heating component 17 uses a YAG solid laser, which is small in size, light in weight, easy to maintain and convenient to use. Compared with a carbon dioxide gas laser, the power is smaller and the use is more energy-efficient. The laser heating component 17 rotates with the rotating shell 16 to adjust the distance with the cylinder liner, thereby increasing the size range of the overall laser heating cylinder liner.

[0035] In the specific operation, it is convenient to heat treat the cylinder liner. A placement table 6 is set on the top of the heat treatment platform 1, which is located on both sides of the transmission platform 7 for placing the cylinder liner to be treated and the cylinder liner that has been heat treated. For the drive of the cylinder liner on the placement table 6, a transmission component 2 is installed on the side of the heat treatment platform 1, and the pulley on the output end of the motor drives the entire elastic conveyor belt 3 to rotate;

[0036] like Figure 2 As shown, a pusher assembly 5, that is, a sliding block with a pneumatic clamp, is installed on the slide rail 4 located on the side of the elastic conveyor belt 3. The pusher assembly 5 is clamped with the elastic conveyor belt 3 through the pneumatic clamp, and the elastic conveyor belt 3 drives the pusher assembly 5 to contact the cylinder sleeve on the placement table 6, pushing the cylinder sleeve to move;

[0037] At the same time, the entire pusher assembly 5 is released from the clamping of the elastic conveyor belt 3, and the elastic conveyor belt 3 continues to rotate to be driven by the subsequent transmission roller 10, such as Figure 3 As shown, slides 9 are evenly arranged on the top of the transmission platform 7, and the slides 9 are correspondingly connected to the electric push rods 8. The slides 9 are located inside the transmission platform 7 and are movably connected to the transmission rollers 10. The electric push rods 8 drive the slides 9 to slide, and the storage height of the entire transmission rollers 10 in the transmission platform 7 is controlled, so as to facilitate the subsequent access and unloading of the cylinder sleeves.

[0038] In order to move the cylinder sleeve on the driving roller 10, a plurality of cylinder sleeves are heat treated at the same time, such as Figure 7 As shown, when a single cylinder sleeve on the placement table 6 falls into the gap between two driving rollers 10, if the cylinder sleeve needs to be driven to move between the driving rollers 10, the left driving roller 10 at this time slides upward under the lifting of the electric push rod 8, and the right driving roller 10 moves downward, causing the cylinder sleeve in the gap to start sliding to the right, and finally the moving driving roller 10 is reset to realize the movement of the cylinder sleeve between the driving rollers 10;

[0039] Since the length of the transmission roller 10 is greater than that of the cylinder sleeve, the transmission roller 10 needs to rotate to drive the cylinder sleeve in the gap to rotate. Figure 4As shown, two telescopic regulating mechanisms 13 are installed on the side of the transmission platform 7, which are respectively located on both sides of the transmission roller 10. The telescopic regulating mechanisms 13 can be added later to achieve simultaneous heat treatment operations of multiple groups of cylinder liners. For the rotation control of the transmission roller 10, the elastic conveyor belt 3 installed at the bottom thereof is in a working state;

[0040] When the cylinder sleeve in the gap needs to rotate, the electric push rod 8 pushes the transmission roller 10 to contact the movable elastic conveyor belt 3, causing the contacted transmission roller 10 to start rotating in the opposite direction of the elastic conveyor belt 3, and the cylinder sleeve stored in the gap of the transmission roller 10 also starts to rotate, preventing the cylinder sleeve from shaking when rotating on the transmission roller 10, which affects the regularity of the thread-shaped hardened belt formed on the inner wall of the cylinder sleeve by subsequent laser heat treatment;

[0041] like Figure 4 As shown, a slidable centering plate 12 is installed in the transmission platform 7, and the centering plate 12 is located on both sides of the cylinder liner. Under the rotation of the transmission component 11, the centering plates 12 on both sides are driven to abut against the outer wall of the top of the cylinder liner, thereby limiting the displacement problem during the rotation of the cylinder liner and ensuring uniform laser heat treatment effect on the inner wall of the cylinder liner.

[0042] Embodiment 2: Laser irradiation treatment is performed on a fully placed cylinder liner, such as Figure 5 As shown, considering the influence of defocus on the hardness, width and depth of the hardened layer of the cylinder liner, the defocus here is the distance from the focus to the surface of the cylinder liner during laser processing. Considering the different distances between the laser heating component 17 and the inner wall of the cylinder liner with different inner diameters, when the laser power of the laser heating component 17 is fixed to 400W and the scanning speed is unchanged at 2m / min, when the defocus is small, the laser power density is large because the light spot of the laser acting on the surface of the cylinder liner is small, so the hardening depth is deep, but the hardness is small and the width is narrow;

[0043] When the defocus amount is large, the light spot is large, so the hardening width is large, but the laser power density is small, so the hardening depth is shallow and the hardness is small. When the defocus amount is equal to 2mm, the hardness is maximum, and the requirements of hardening depth greater than 0.1mm and hardening width greater than 1.2mm are met. Therefore, the most suitable defocus amount value is obtained, and this value will change due to the inner diameter of the cylinder sleeve, so the entire laser heating assembly 17 is required to be able to adjust the spacing;

[0044] like Figure 5As shown, a slide 132 is slidably connected to a storage rack 131 of the telescopic regulating mechanism 13, and the slide 132 is driven by a threaded rod 136 to drive the slide 132 to slide on the storage rack 131, and a storage arc plate 134 is fixedly connected to the entire slide 132, and a guide column 135 is installed on the storage arc plate 134, and a rotating shell 16 is rotatably connected to the end of the guide column 135, and the laser heating component 17 is installed on the rotating shell 16, and the position of the laser heating component 17 is changed by rotating the rotating shell 16, that is, the distance between the two is adjusted;

[0045] To adjust the rotation angle of the rotating shell 16, a sliding sleeve 14 is slidably connected to the guide column 135, and an abutment rod 15 is movably connected to the bottom of the sliding sleeve 14. The abutment rod 15 is movably connected to the side of the rotating shell 16. By changing the position of the sliding sleeve 14 on the guide column 135, the abutment rod 15 is driven to pull the entire rotating shell 16 to rotate, thereby changing the position of the laser heating assembly 17;

[0046] At the same time, to prevent the irradiation angle from changing when the position of the laser heating component 17 changes, the entire laser heating component 17 is movably connected to the rotating shell 16, and a guide plate 18 is slidably connected in the inner groove of the storage arc plate 134. The guide plate 18 is clamped with the outer wall of the laser heating component 17. During the rotation of the laser heating component 17, the guide plate 18 is synchronously driven to slide. At the same time, the laser heating component 17 and the guide plate 18 slide synchronously, and finally the distance between the laser heating component 17 and the inner wall of the cylinder sleeve is adjusted without changing the irradiation angle of the laser heating component 17. The adjustment of the position of the entire sleeve 14 is achieved through the transmission component three 133 installed on the slide 132.

[0047] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated continuous heat treatment device based on a cylinder heat treatment process, comprising a heat treatment platform (1) and a transmission platform (7), wherein the transmission platform (7) is installed on the top of the heat treatment platform (1), characterized in that: A telescopic regulating mechanism (13) is symmetrically mounted on the side of the transmission platform (7); The telescopic regulating mechanism (13) comprises a storage rack (131), a slide (132), a storage arc plate (134) and a guide column (135); the storage rack (131) is symmetrically fixed to the side of the transmission platform (7); the slide (132) is slidably connected to the storage rack (131); a threaded rod (136) is movably connected to the side of the storage rack (131); one end of the threaded rod (136) passes through the slide (132) and is movably connected to the side wall of the transmission platform (7); The side of the slide (132) is fixedly connected to a storage arc plate (134), and the side of the storage arc plate (134) is fixedly connected to a guide column (135). One side of the slide (132) is installed with a transmission component three (133), and the end of the guide column (135) is rotatably connected to a rotating shell (16), and the rotating shell (16) is movably connected to a laser heating component (17).

2. The integrated continuous heat treatment equipment based on the cylinder heat treatment process according to claim 1 is characterized in that: The outer wall of the guide column (135) is slidably connected to a sliding sleeve (14), the bottom of the sliding sleeve (14) is rotatably connected to an abutment rod (15), one end of the abutment rod (15) is movably connected to the side of the rotating shell (16), and the storage arc plate (134) is movably connected to a rotating shaft, and one end of the rotating shaft is threadedly connected to the sliding sleeve (14).

3. The integrated continuous heat treatment equipment based on the cylinder heat treatment process according to claim 2 is characterized in that: A guide plate (18) is slidably connected in the groove on the inner wall of the arc storage plate (134), and one side of the guide plate (18) is slidably connected to the outer wall of the laser heating component (17).

4. The integrated continuous heat treatment equipment based on the cylinder heat treatment process according to claim 3 is characterized in that: The transmission platform (7) is evenly slidably connected to a slide frame (9), inner walls on both sides of the slide frame (9) are movably connected to transmission rollers (10), and an electric push rod (8) is evenly fixed to the top of the transmission platform (7) by bolts, and the ends of the electric push rod (8) are respectively connected to the slide frame (9).

5. The integrated continuous heat treatment equipment based on the cylinder heat treatment process according to claim 4 is characterized in that: The inner wall of the transmission platform (7) is symmetrically mounted with a transmission assembly 2 (11), and a centering plate (12) is symmetrically slidably connected inside the transmission platform (7), and the side wall of the centering plate (12) is meshingly connected with a connecting gear on the transmission assembly 2 (11).

6. The integrated continuous heat treatment equipment based on the cylinder heat treatment process according to claim 1 is characterized in that: A transmission component (2) is fixed to one side of the heat treatment platform (1) by means of bolts, an elastic conveyor belt (3) is sleeved and connected to the transmission component (2), and a placement table (6) is symmetrically fixed on the top of the heat treatment platform (1) and located on both sides of the elastic conveyor belt (3).

7. The integrated continuous heat treatment equipment based on the cylinder heat treatment process according to claim 6 is characterized in that: A slide rail (4) is fixed to the top of the heat treatment platform (1) by bolts, a pusher assembly (5) is slidably connected to the slide rail (4), and a fixture side installed on the pusher assembly (5) abuts against the elastic conveyor belt (3).

8. The integrated continuous heat treatment equipment based on the cylinder heat treatment process according to any one of claims 1 to 7, characterized in that: The integrated continuous heat treatment method of the cylinder heat treatment process is: The cylinder sleeves are conveyed in an undulating manner, and batches of heat-treated cylinder sleeves are stored on the top of a placement table (6). The transmission component 1 (2) drives the elastic conveyor belt (3) to rotate, and at the same time, the electric push rod (8) on the top of the transmission platform (7) drives the transmission roller (10) to move downward. The push assembly (5) actively clamps the elastic conveyor belt (3), and the cylinder sleeve is pushed to the top of the transmission roller (10) along with the movement of the elastic conveyor belt (3). The electric push rod (8) controls the single-side transmission roller (10) to move upward and the other-side transmission roller (10) to move downward, so that the cylinder sleeve rolls on the transmission roller (10), thereby completing the placement of the cylinder sleeves on multiple groups of transmission rollers (10); To assist laser heating, the transmission roller (10) moves through the electric push rod (8) to contact the rotating elastic conveyor belt (3), and the elastic conveyor belt (3) is used to realize the same direction rotation of the transmission roller (10), and the cylinder sleeve located between the two transmission rollers (10) starts to rotate in the opposite direction, while preventing the cylinder sleeve from being displaced during the movement process. The gear on the transmission component 2 (11) rotates, driving the centering plate (12) to close and clamp the outer walls of both sides of the cylinder sleeve during the rotation process; The internal threaded rod (136) of the telescopic control mechanism (13) rotates to push the arc plate (134) and the guide column (135) on the side of the slide table (132) to enter the inner wall of the cylinder sleeve. The transmission component 3 (133) is used to rotate and control the position of the slide sleeve (14) on the guide column (135), thereby realizing the rotation angle control of the rotating shell (16), indirectly pushing the laser heating component (17) to move, determining the distance between the inner wall of the cylinder sleeve and the laser heating component (17), and the laser heating component (17) that moves forward and backward with the rotation of the cylinder sleeve begins to heat the inner wall of the cylinder sleeve, and with the subsequent movement of the transmission roller (10), actively discharges materials up and down.

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