A stress relief device for a diesel engine block casting

Abstract

This utility model relates to the field of diesel engine cylinder block casting processing technology, and discloses a stress-relieving device for diesel engine cylinder block castings, including an annealing furnace and a slide rail disposed on one side of the annealing furnace. A movable support frame is provided on the slide rail, and at least two rotating rods are rotatably connected to both sides of the support frame. Multiple rotating rods are arranged in parallel, and a guide rail frame is rotatably connected to the top of the multiple rotating rods. A transfer cart for placing the cylinder block casting is placed on top of the guide rail frame. This utility model, through the arrangement of the rotating rods and the guide rail frame, allows operators to easily load the casting without lifting it high, effectively reducing safety risks during operation. A pin structure locks the angle of the rotating rods, preventing accidental rotation of the rotating rods during the transfer cart's pushing process and thus preventing changes in the height of the guide rail frame, further ensuring the stability and safety of the placement operation.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine cylinder block casting processing technology, and more specifically to a stress relief device for diesel engine cylinder block castings. Background Technology

[0002] Stress relief in diesel engine cylinder block castings is a critical process that directly affects the product's dimensional stability, machining quality, and final service life.

[0003] Traditional stress relief for cylinder block castings involves heating the cylinder block castings in an annealing furnace to 530 to 630 degrees Celsius (slightly below the phase transformation point AC1 of the material), holding them at that temperature for a period of time, and then slowly cooling them in the furnace to about 200 degrees Celsius before air cooling.

[0004] However, due to the weight of the cylinder casting, using a crane to lift the cylinder too high makes it difficult to control, and it is easy for it to fall, causing injury to workers. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a stress relief device for diesel engine cylinder block castings to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a stress relief device for a diesel engine cylinder block casting, including an annealing furnace and a slide rail disposed on one side of the annealing furnace. A movable support frame is provided on the slide rail. At least two rotating rods are rotatably connected to both sides of the support frame, and the multiple rotating rods are arranged in parallel. A guide rail frame is rotatably connected to the top of the multiple rotating rods. A transfer cart for placing the cylinder block casting is placed on the top of the guide rail frame.

[0007] As a further embodiment of this utility model, electric push rods are rotatably connected to both sides of the support frame, and the movable end of the electric push rod is rotatably connected to one of the rotating rods.

[0008] As a further embodiment of this utility model, at least one side of the rotating rod is fixed with a plug by bolts, and one side of the support frame is provided with the same number of sockets as the plug, and the plug and sockets cooperate to form a pin structure.

[0009] As a further embodiment of this utility model, one end of the top of the guide rail frame is fixed with two stops by bolts, and the top of the guide rail frame near the annealing furnace is provided with two detachable stops.

[0010] As a further embodiment of this utility model, a fixing tube and a fixing rod are welded to opposite sides of the two stops, respectively. A sliding hole is opened on the side of the fixing tube facing the fixing rod, and the fixing rod is located in the sliding hole.

[0011] As a further embodiment of this invention, a spring is provided between the fixing rod and the sliding hole.

[0012] As a further embodiment of this utility model, insert rods are welded to the opposite sides of the two stops, and insertion holes are opened on both sides of the guide rail frame, with the insert rods inserted into the insertion holes.

[0013] As a further embodiment of this invention, a lug is welded to one side of the transfer vehicle for pulling the transfer vehicle out of the annealing furnace.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By using a rotating rod and guide rail frame, this utility model allows operators to easily load the cylinder casting without having to hoist it high, effectively reducing safety risks during operation.

[0016] 2. This utility model uses a pin structure to lock the angle of the rotating rod, preventing accidental rotation of the rotating rod during the push of the transfer vehicle and thus preventing changes in the height of the guide rail frame, thereby further ensuring the stability and safety of the delivery operation.

[0017] 3. By providing a stop block and a stop frame, this utility model can limit the initial position of the transfer vehicle, prevent the transfer vehicle from sliding and causing the cylinder casting to be unstable, thus playing a pre-fixing role. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 For the present utility model Figure 1 Enlarged structural diagram of the support frame.

[0020] Figure 3 For the present utility model Figure 2 A magnified structural diagram of part A.

[0021] Figure 4 For the present utility model Figure 2 A schematic diagram of the enlarged structure of the fixed tube.

[0022] Figure 5 For the present utility model Figure 4 A schematic diagram of the cross-sectional structure of the fixed tube.

[0023] The attached diagram is labeled as follows: 1. Annealing furnace; 2. Slide rail; 3. Support frame; 4. Electric push rod; 5. Rotating rod; 6. Socket; 7. Stop; 8. Guide rail frame; 9. Transfer cart; 10. Hanging lug; 11. Stop block; 12. Socket; 13. Plug; 14. Insert rod; 15. Fixing tube; 16. Fixing rod; 17. Spring; 18. Sliding hole. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Reference Figures 1-5 This utility model provides a stress relief device for diesel engine cylinder block castings, including an annealing furnace 1, model HDT1. Its structure and principle can be learned by those skilled in the art through technical manuals, and will not be described in detail here.

[0026] A slide rail 2 is provided on one side of the annealing furnace 1. A movable support frame 3 is provided on the slide rail 2. At least two rotating rods 5 are rotatably connected to both sides of the support frame 3, and the multiple rotating rods 5 are arranged in parallel. A guide rail frame 8 is rotatably connected to the top of the multiple rotating rods 5. A transfer car 9 for placing cylinder castings is placed on the top of the guide rail frame 8.

[0027] When it is necessary to put the cylinder casting into the annealing furnace 1, first place the cylinder casting on the transfer car 9, then move the support frame 3 from the slide rail 2 to the feeding port of the annealing furnace 1, adjust the angle of the rotating rod 5 so that the top of the guide rail frame 8 is flush with the bottom of the feeding port of the annealing furnace 1, and then push the transfer car 9 into the annealing furnace 1 to complete the cylinder casting placement operation.

[0028] During the delivery process, the guide rail frame 8 and the feeding port of the annealing furnace 1 form a smooth transition, which avoids the transfer car 9 from getting stuck or tilting when pushing, and effectively ensures the stability of the cylinder casting.

[0029] Meanwhile, the rotating connection design of the rotating rod 5 makes the height adjustment of the guide rail frame 8 more flexible, which can adapt to the height difference of the feeding port of different models of annealing furnaces and improve the versatility of the device.

[0030] During the pushing process, the rollers at the bottom of the transfer vehicle 9 fit closely with the guide rail frame 8 and the internal track of the annealing furnace, further reducing the moving resistance. Operators only need to apply a small pushing force to complete the delivery, reducing labor intensity.

[0031] After the transfer car 9 has completely entered the annealing furnace 1, the guide rail frame 8 can be reset by adjusting the angle of the rotating rod 5 in the opposite direction. Then the support frame 3 can be moved away along the slide rail 2 to avoid affecting the sealing and heating process of the annealing furnace 1.

[0032] Because the cylinder casting is placed at a low height, operators can easily load the casting without having to lift it high, effectively reducing safety risks during operation.

[0033] In this utility model, electric push rods 4 are rotatably connected to both sides of the support frame 3, and the movable end of the electric push rod 4 is rotatably connected to one of the rotating rods 5.

[0034] By extending and retracting the electric push rod 4, the rotation angle of the rotating rod 5 can be precisely controlled, realizing the automatic adjustment of the height of the guide rail frame 8, replacing the traditional manual adjustment method and significantly improving operating efficiency.

[0035] When the height of the guide rail frame 8 needs to be adjusted, the operator only needs to issue a command through the control device, and the electric push rod 4 will extend and retract according to the preset program or real-time feedback information, driving the rotating rod 5 to rotate around the connection point, thereby smoothly adjusting the height position of the guide rail frame 8, making the whole adjustment process more convenient, labor-saving and more accurate, and further optimizing the operation process of cylinder casting placement.

[0036] It should be noted that the electric push rod 4, in conjunction with a magnetic switch, proximity switch or photoelectric switch, can achieve precise control of the push rod's extension and retraction displacement. Those skilled in the art can set it according to actual needs.

[0037] Furthermore, at least one side of the rotating rod 5 is fixed with a plug 13 by bolts, and one side of the support frame 3 is provided with the same number of sockets 12 as the plug 13. The plug 13 and the sockets 12 cooperate to form a pin structure.

[0038] Once the guide rail frame 8 is adjusted to the target height, the plug 13 can be inserted into the corresponding socket 12. The angle of the rotating rod 5 is locked by the pin structure to prevent the rotating rod 5 from rotating unexpectedly during the push of the transfer vehicle 9, which would cause the height of the guide rail frame 8 to change. This further ensures the stability and safety of the delivery operation.

[0039] When the height of the guide rail bracket 8 needs to be readjusted, simply unplug the plug 13 to unlock it. The operation is simple and convenient and does not affect the flexible adjustment performance of the device.

[0040] This mechanical locking method, combined with the automatic adjustment of the electric push rod 4, forms a dual protection mechanism. It not only meets the requirements for precision and automation of height adjustment, but also ensures structural stability during operation through physical locking, effectively improving the reliability of the entire stress relief device.

[0041] Furthermore, two stops 11 are fixed to one end of the top of the guide rail frame 8 by bolts, and two detachable stops 7 are provided at the end of the top of the guide rail frame 8 near the annealing furnace 1.

[0042] The stop blocks 11 are symmetrically distributed on the side of the guide rail frame 8 away from the annealing furnace 1. When the transfer car 9 is placed on the guide rail frame 8, the stop blocks 11 and the stop frame 7 cooperate to limit the initial position of the transfer car 9, preventing the transfer car 9 from sliding and causing the cylinder casting to be placed unstable, thus playing a pre-fixing role.

[0043] As a further embodiment of this utility model, insert rods 14 are welded to the opposite sides of the two baffles 7, and insertion holes 6 are opened on both sides of the guide rail frame 8, with the insert rods 14 inserted into the insertion holes 6.

[0044] The insertion and connection of the plug rod 14 and the plug hole 6 make the installation and disassembly of the baffle 7 convenient and efficient. When it is necessary to push the transfer car 9 from the guide rail frame 8 into the annealing furnace 1, the plug rod 14 can be pulled out first to remove the baffle 7, so as to avoid the baffle 7 from obstructing the pushing path of the transfer car 9.

[0045] After the cylinder casting is placed and the transfer car 9 is pulled out of the annealing furnace 1 to the guide rail frame 8, the insert rod 14 of the stop frame 7 is reinserted into the insertion hole 6 so that the stop frame 7 restores its limiting function on the transfer car 9 and prevents the transfer car 9 from moving unexpectedly when not in operation.

[0046] This detachable baffle design ensures the positional stability of the transfer vehicle 9 during initial placement and retrieval, without interfering with its pushing operation into and out of the annealing furnace, further enhancing the flexibility and safety of the device during use.

[0047] Furthermore, a fixing tube 15 and a fixing rod 16 are welded to opposite sides of the two baffles 7 respectively. A sliding hole 18 is provided on the side of the fixing tube 15 facing the fixing rod 16, and the fixing rod 16 is located in the sliding hole 18.

[0048] A spring 17 is provided between the fixing rod 16 and the sliding hole 18, and the two ends of the spring 17 abut against the inner wall of the fixing tube 15 and the end of the fixing rod 16, respectively.

[0049] When the transfer car 9 is in the initial limited position on the guide rail frame 8, the fixing rod 16 extends into the fixing tube 15 under the elastic action of the spring 17, so that the two stops 7 fit tightly together, further enhancing the clamping and limiting effect on the transfer car 9 and preventing it from shifting laterally on the guide rail frame 8.

[0050] When disassembling the baffle 7, the two baffles 7 can be pressed together to compress the spring 17, causing the fixing rod 16 to slide into the fixing tube 15. At this time, the insertion rod 14 will follow the pressing action to disengage from the insertion hole 6, thus completing the disassembly of the baffle 7. The whole process does not require the use of tools, is convenient to operate, and can quickly switch the working state of the baffle 7, improving the operating efficiency of the device.

[0051] One side of the transfer car 9 is welded with a lug 10, which is used to pull the transfer car 9 out of the annealing furnace 1.

[0052] Operators can connect the hook to the lug 10. After the annealing of the cylinder casting is completed, the operator can easily drag the transfer car 9 from the annealing furnace 1 to the guide rail frame 8 with the help of the lug 10, so as to avoid the safety hazards caused by the high temperature environment inside the annealing furnace directly contacting the transfer car 9.

[0053] The position of the hanging lug 10 has been optimized to ensure that the transfer vehicle 9 is subjected to balanced force during towing, preventing it from tilting or shaking during the pulling process, and further ensuring the stability of the cylinder casting during the transfer process.

[0054] Meanwhile, the lug 10 is made of high-strength alloy material, which has good load-bearing performance and high temperature resistance, and can adapt to the high-temperature working environment around the annealing furnace, thus extending its service life.

[0055] The working principle of this utility model:

[0056] When it is necessary to put the cylinder casting into the annealing furnace 1, first place the cylinder casting on the transfer car 9, and then move the support frame 3 from the slide rail 2 to the feeding port of the annealing furnace 1.

[0057] Start the electric push rod 4. The retraction of the electric push rod 4 will drive the rotating rod 5 to rotate, so that the top of the guide rail frame 8 is flush with the bottom of the feeding port of the annealing furnace 1.

[0058] The two stops 7 can be pressed together to compress the spring 17, causing the fixing rod 16 to slide into the fixing tube 15. At this time, the insertion rod 14 will follow the pressing action and disengage from the insertion hole 6.

[0059] The transfer vehicle 9 is pushed into the annealing furnace 1 to complete the placement of the cylinder casting.

[0060] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0061] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0062] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A stress-relieving device for a diesel engine cylinder block casting, comprising an annealing furnace (1) and a slide rail (2) disposed on one side of the annealing furnace (1), characterized in that: The slide rail (2) is provided with a movable support frame (3). At least two rotating rods (5) are rotatably connected to both sides of the support frame (3), and the multiple rotating rods (5) are arranged in parallel. The top of the multiple rotating rods (5) is rotatably connected to a guide rail frame (8), and a transfer car (9) for placing cylinder castings is placed on the top of the guide rail frame (8).

2. The stress-relieving device for a diesel engine cylinder block casting according to claim 1, characterized in that: Both sides of the support frame (3) are rotatably connected to electric push rods (4), and the movable end of the electric push rod (4) is rotatably connected to one of the rotating rods (5).

3. The stress-relieving device for a diesel engine cylinder block casting according to claim 1, characterized in that: At least one rotating rod (5) is fixedly connected to a plug (13) on one side, and the support frame (3) is provided with the same number of sockets (12) as the plug (13) on one side. The plug (13) and the sockets (12) cooperate to form a pin structure.

4. The stress-relieving device for a diesel engine cylinder block casting according to claim 1, characterized in that: Two blocks (11) are fixedly connected to one end of the top of the guide rail frame (8), and two detachable blocks (7) are provided at the end of the top of the guide rail frame (8) near the annealing furnace (1).

5. The stress-relieving device for a diesel engine cylinder block casting according to claim 4, characterized in that: Both of the two retainers (7) are fixedly connected to the opposite sides with insert rods (14), and both sides of the guide rail frame (8) are provided with insertion holes (6), and the insert rods (14) are inserted into the insertion holes (6).

6. The stress-relieving device for a diesel engine cylinder block casting according to claim 5, characterized in that: The two stops (7) are respectively fixedly connected to a fixed tube (15) and a fixed rod (16) on opposite sides. The fixed tube (15) has a sliding hole (18) on the side facing the fixed rod (16), and the fixed rod (16) is located in the sliding hole (18).

7. The stress-relieving device for a diesel engine cylinder block casting according to claim 6, characterized in that: A spring (17) is provided between the fixed rod (16) and the sliding hole (18).

8. The stress-relieving device for a diesel engine cylinder block casting according to claim 1, characterized in that: The transfer vehicle (9) is fixedly connected to one side with a lug (10) for pulling the transfer vehicle (9) out of the annealing furnace (1).

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