Temperature-resistant transport vehicle for annular forgings

Abstract

The invention relates to the technical field of annular forge piece transfer devices, in particular to a temperature-resistant transport vehicle for annular forge pieces, which comprises a transport vehicle body and a plurality of placing seats mounted on the transport vehicle body, the round box is installed in the containing base, and a plurality of switching mechanisms are evenly distributed in the round box and used for alternately limiting and clamping the annular forgings; each switching mechanism comprises a first rod and a second rod which are connected to the side wall of the round box in a penetrating and sliding mode, and a first rack is fixedly connected to the first rod. Through the first rod and the second rod which are controlled by the switching mechanism and can move alternately in the radial direction and the arc-shaped plates of the first rod and the second rod, dynamic and alternate clamping of the inner wall of the annular forge piece is achieved, the heat dissipation effect is improved, space is vacated for radial shrinkage of cooling of a workpiece, mechanical hindrance caused by traditional rigid supporting or sliding friction to shrinkage of the workpiece is avoided, and the service life of the workpiece is prolonged. Therefore, thermal stress is released, and deformation and internal residual stress of the workpiece caused by cooling blocking are prevented.

Description

Technical Field

[0001] This invention relates to the field of annular forging transfer device technology, and specifically to a temperature-resistant transport vehicle for annular forgings. Background Technology

[0002] After heat treatment, ring forgings are usually at a high temperature and need to be transferred to the next process for further processing or cooling. Currently, the common method of transfer is to use a flatbed transport vehicle, and to use V-blocks or fixed brackets on the vehicle body for simple positioning and support of the forgings.

[0003] However, this approach has obvious technical shortcomings: 1. High-temperature ring forgings will naturally cool and undergo radial shrinkage during transportation. Traditional fixed clamps or rigid supports will hinder this shrinkage process, resulting in huge thermal stress inside the forging, and even causing deformation, which seriously affects the dimensional accuracy and mechanical properties of the product; 2. Natural cooling is slow, which prolongs the production cycle, and uneven heat dissipation on the surface of the forging may also lead to inconsistent microstructure and properties; 3. If a simple sliding support is used, it can allow for a certain amount of shrinkage, but the friction during the shrinkage process will still generate residual stress, and there is a risk of insecure positioning and displacement during transportation.

[0004] Therefore, we propose a temperature-resistant transport vehicle for ring forgings. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art and to propose a heat-resistant transport vehicle for ring forgings.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A heat-resistant transport vehicle for ring forgings, comprising: The transport vehicle body and multiple mounting seats installed on the transport vehicle body; A circular box installed inside the placement seat, wherein multiple sets of switching mechanisms are evenly distributed inside the circular box to alternately limit and clamp the annular forging; Each group of switching mechanisms includes: A first rod and a second rod are slidably connected through the side wall of the cylindrical box. A first rack is fixedly connected to the first rod, and a second rack is fixedly connected to the second rod. A support plate is fixed to the inner wall of the cylindrical box, and a rotating shaft is rotatably connected to the support plate; A first gear and a second gear are rotatably connected through the rotating shaft. Limiting rod 1 and limiting rod 2 are fixedly connected to the side wall of the first gear, and limiting rod 3 and limiting rod 4 are fixedly connected to the side wall of the second gear. Push rod 1 and push rod 2 are fixedly connected to both ends of the rotating shaft, respectively. Both the first and second rods are connected to an arc-shaped plate via a buffer mechanism; The cylindrical box is equipped with a drive mechanism that drives multiple switching mechanisms to move synchronously.

[0007] Preferably, the drive mechanism includes: Multiple rotating rods are rotatably connected to the inner wall of the top of the cylindrical box, and a transmission gear set is fixed to the side wall of each rotating rod; A micro motor is fixed to the inner wall of a circular box, and the output end of the micro motor is coaxially fixed with one of the rotating rods; A transmission rack is fixedly connected to the side wall of the first rod; Rotate the gear ring connected to the inner wall of the top of the round box.

[0008] Preferably, the transmission gear set is meshed with the adjacent transmission rack, the gear ring is meshed with the transmission gear set, and the gear ring and the first rod are misaligned.

[0009] Preferably, the side wall of the circular box is provided with multiple heat dissipation mechanisms, the heat dissipation mechanisms including: A fan-shaped jet nozzle that penetrates and is fixed to the side wall of the cylindrical box; A circular plate is fixed to the bottom wall of the rotating rod, and a cylinder is eccentrically fixed to the bottom wall of the circular plate. A connecting rod is rotatably connected to the side wall of the cylinder. A box body fixed to a round box, wherein a piston is slidably connected inside the box body in a sealed manner, and the connecting rod is rotatably connected to the side wall of the piston. The side wall of the box is fixedly connected to a first one-way pipe and a second one-way pipe, and the second one-way pipe is fixedly connected to an adjacent fan-shaped jet head.

[0010] Preferably, the buffer mechanism includes: A slot is formed at one end of the first rod and the second rod. An extension rod is elastically connected to the inner wall of the slot by a buffer spring. The extension rod is slidably connected in the corresponding slot and is fixedly connected to the arc plate.

[0011] Preferably, the first gear and the first rack are meshed together, and the second gear and the second rack are meshed together.

[0012] Preferably, an annular support frame is fixedly connected to the inner wall of the circular box, and both the first rod and the second rod slide through the annular support frame.

[0013] Compared with existing technologies, the advantages of this invention are: 1. This invention achieves dynamic, alternating clamping of the inner wall of an annular forging by using a first and second rod and their arc-shaped plates, which are controlled by a switching mechanism and can move radially alternately. When one set of arc-shaped plates clamps the workpiece, the other set of arc-shaped plates actively retracts, improving heat dissipation and avoiding poor heat dissipation caused by continuous contact in traditional methods. Furthermore, it creates space for the radial contraction of the workpiece during cooling, eliminating the mechanical resistance to workpiece contraction caused by traditional rigid supports or sliding friction, allowing thermal stress to be fully released, avoiding deformation and internal residual stress caused by hindered cooling, and ensuring the dimensional accuracy and mechanical properties of the final product. 2. When the drive switching mechanism is working, it will synchronously drive the circular plate, cylinder and connecting rod at the end of the rotating rod to move, thereby driving the piston to reciprocate in the box, thereby continuously pumping in the outside cold air and blowing it onto the surface of the high-temperature forging through the fan-shaped jet head, accelerating the air flow around the forging, helping to improve heat dissipation efficiency and shorten the production cycle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance of a heat-resistant transport vehicle for ring forgings proposed in this invention; Figure 2 This is a schematic diagram of the structure of a circular box in a heat-resistant transport vehicle for ring forgings proposed in this invention, viewed in the horizontal direction. Figure 3 This is a schematic diagram of the internal structure of a circular box in a heat-resistant transport vehicle for ring forgings proposed in this invention. Figure 4 This is a schematic diagram of the switching mechanism in a heat-resistant transport vehicle for ring forgings proposed in this invention. Figure 5 This is a schematic diagram of a heat dissipation mechanism in a heat-resistant transport vehicle for ring forgings, as proposed in this invention. Figure 6 This is a schematic diagram of the internal structure of a hollow trough in a heat-resistant transport vehicle for ring forgings, as proposed in this invention. Figure 7 This is a schematic diagram showing the positional relationship between limit rod one, limit rod two, and push rod one in a heat-resistant transport vehicle for ring forgings proposed in this invention. Figure 8 This is a schematic diagram showing the positional relationship between the limiting rod three and the limiting rod four-in-one push rod two in a temperature-resistant transport vehicle for ring forgings proposed in this invention.

[0015] In the diagram: 1. Transport vehicle body; 2. Placement seat; 3. Round box; 4. Circular support frame; 5. Switching mechanism; 51. First lever; 510. Second lever; 53. First rack; 511. Second rack; 54. Support plate; 56. Rotating shaft; 55. First gear; 57. Second gear; 6. Buffer mechanism; 61. Empty slot; 62. Buffer spring; 63. Extension rod; 71. Limiting rod four; 72. Limiting rod three; 73. Push rod two; 75. Limiting rod one; 76. Limiting rod two; 77. Push rod one; 8. Heat dissipation mechanism; 81. Fan-shaped jet nozzle; 84. Circular plate; 85. Cylinder; 86. Connecting rod; 82. Box body; 83. Piston; 87. First one-way pipe; 88. Second one-way pipe; 10. Rotating rod; 11. Transmission gear set; 12. Transmission rack; 13. Arc plate; 14. Gear ring; 15. Miniature motor. Detailed Implementation

[0016] 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.

[0017] Reference Figures 1-8 A heat-resistant transport vehicle for ring forgings, comprising: The transport vehicle body 1 and multiple placement seats 2 installed on the transport vehicle body 1; The circular box 3 installed inside the placement seat 2 has a heat insulation layer on its inner side wall. Multiple sets of switching mechanisms 5 are evenly distributed inside the circular box 3 to alternately limit and clamp the ring forging at different positions, making room for the workpiece to cool and shrink radially. This avoids the mechanical resistance to the shrinkage of the workpiece caused by traditional rigid support or sliding friction, allowing the thermal stress to be fully released and ensuring the dimensional accuracy and mechanical properties of the final product. Each switching mechanism 5 includes: A first rod 51 and a second rod 510 are slidably connected to the side wall of the circular box 3. A first rack 53 is fixedly connected to the first rod 51, and a second rack 511 is fixedly connected to the second rod 510. A support plate 54 is symmetrically fixed to the inner wall of the circular box 3, and a rotating shaft 56 is rotatably connected to the support plate 54. A first gear 55 and a second gear 57 are rotatably connected to the rotating shaft 56. The first gear 55 and the second gear 57 are offset from each other and can only rotate on their own axis without axial displacement. Limiting rod 1 75 and limiting rod 2 76 are fixedly connected to the side wall of the first gear 55 (in combination with...). Figure 7 and Figure 8 As shown), the second gear 57 has a limit rod 3 72 and a limit rod 4 71 fixedly connected to its side wall, and push rod 1 77 and push rod 2 73 fixedly connected to both ends of the rotating shaft 56, respectively. Both the first rod 51 and the second rod 510 are connected to the arc plate 13 through the buffer mechanism 6; The circular box 3 is equipped with a drive mechanism that drives multiple sets of switching mechanisms 5 to move synchronously.

[0018] The drive mechanism includes: Multiple rotating rods 10 (connected to the inner wall of the top of the circular box 3) are rotatably connected. Figure 3 and Figure 4 As shown), each rotating rod 10 has a transmission gear set 11 fixedly connected to its side wall. The transmission gear set 11 consists of two gears and can mesh with the gear ring 14 and the transmission rack 12. The miniature motor 15 (e.g., fixed to the inner wall of the circular box 3) Figure 3 As shown in the figure, the output end of the micro motor 15 and one of the rotating rods 10 are fixed coaxially, and the output end of the micro motor 15 can rotate in both directions through the controller. A transmission rack 12 is fixedly connected to the side wall of the first rod 51; Rotate the toothed ring 14 connected to the inner wall of the top wall of the circular box 3.

[0019] The transmission gear set 11 is meshed with the adjacent transmission rack 12, the gear ring 14 is meshed with the transmission gear set 11, and the gear ring 14 and the first rod 51 are misaligned.

[0020] The side wall of the circular box 3 is provided with multiple heat dissipation mechanisms 8, and the heat dissipation mechanism 8 includes: A fan-shaped jet nozzle 81 is fixed to the side wall of the circular box 3. The gas ejected by the fan-shaped jet nozzle 81 has a fan-shaped range, which expands the range of gas flow. A circular plate 84 is fixed to the bottom wall of the rotating rod 10. A cylinder 85 is eccentrically fixed to the bottom wall of the circular plate 84. A connecting rod 86 is rotatably connected to the side wall of the cylinder 85. The rotating rod 10 drives the circular plate 84 to rotate. The circular plate 84 drives the connecting rod 86 to move through the eccentrically set cylinder 85. The connecting rod 86 then drives the piston 83, which is rotatably connected to it, to reciprocate. A box 82 is fixed to the round box 3. A piston 83 is slidably connected inside the box 82. One end of the connecting rod 86 is rotatably connected to the side wall of the piston 83. The side wall of the box 82 is fixedly connected to a first one-way pipe 87 and a second one-way pipe 88. The second one-way pipe 88 is fixedly connected to the adjacent fan-shaped jet head 81. The first one-way pipe 87 only allows external gas to enter the box 82, and the second one-way pipe 88 only allows gas in the box 82 to enter the fan-shaped jet head 81 and be ejected to form a high-speed fan-shaped airflow.

[0021] Buffer mechanism 6 includes: A slot 61 is formed at one end of the first rod 51 and the second rod 510. A buffer spring 62 is fixedly connected to the inner wall of the slot 61. An extension rod 63 is fixedly connected to the other end of the buffer spring 62. The extension rod 63 is slidably connected in the corresponding slot 61. The extension rod 63 is fixedly connected to the arc plate 13.

[0022] The first gear 55 and the first rack 53 are meshed together, and the second gear 57 and the second rack 511 are meshed together.

[0023] An annular support frame 4 is fixed to the inner wall of the circular box 3, and the first rod 51 and the second rod 510 slide through the annular support frame 4.

[0024] In this invention, workshop personnel place the high-temperature ring forgings that need to be transferred into multiple placement seats 2 in sequence using the overhead crane hook, and then push the transport vehicle 1 to move to complete the transfer of different processing steps.

[0025] During the transfer of the high-temperature ring forging, multiple micro motors 15 are activated, and each micro motor 15 is a forward and reverse rotating motor. The output ends of the micro motors 15 rotate alternately in both directions. Initially, the output end of each micro motor 15 will drive the rotating rod 10, which is fixed to it, to rotate counterclockwise (in conjunction with...). Figure 3 and Figure 4 As shown), the rotating rod 10 will drive the transmission gear set 11 fixed to it to rotate synchronously. The transmission gear set 11 will drive the gear ring 14 meshing with it to rotate. The gear ring 14 will drive the multiple transmission gear sets 11 meshing with it to rotate synchronously. Then, the multiple transmission gear sets 11 will drive the transmission rack 12 meshing with them to move synchronously. Each transmission rack 12 will drive the first rod 51 fixed to it to move a certain distance towards the high-temperature ring forging. At this time, the first rack 53 fixed to the first rod 51 will drive the first gear 55 meshing with it to rotate synchronously. Since the side wall of the first gear 55 is fixed with limit rod 1 75 and limit rod 2 76 (in combination with...) Figure 7 and Figure 8 As shown), and the limiting rod 75 is in contact with the push rod 77 at this time, the limiting rod 75 will immediately drive the rotating shaft 56 to rotate through the push rod 77. Since the other end of the rotating shaft 56 corresponds to the limiting rod 72 and the limiting rod 71, and the limiting rod 72 is in contact with the push rod 73 at this time, the push rod 73 is still a distance away from the limiting rod 71 during the rotation of the rotating shaft 56. During this process, the rotating shaft 56 will not drive the second gear 57 to rotate until the push rod 73 rotates with the rotating shaft 56 at a certain angle and then comes into contact with the limiting rod 71 fixed to the side wall of the second gear 57. Only then will the second gear 57 be driven to rotate. The second gear 57 will then drive the second rack 511, which is meshed with it, to move. The second rack 511 will drive the second rod 510, which is fixed to it, to move away from the high-temperature ring forging.

[0026] There is a time difference between the relative movements of the first rod 51 and the second rod 510. Since both the first rod 51 and the second rod 510 are connected to the arc plate 13 through the buffer mechanism 6, the second rod 510 forms a limit by contacting the inner wall of the high-temperature annular forging through the buffer mechanism 6 and the corresponding arc plate 13. As the first rod 51 moves toward the inner wall of the high-temperature annular forging, the buffer spring 62 in the buffer mechanism 6 corresponding to the second rod 510 will gradually extend and provide a certain squeezing force on the extension rod 63, so that the extension rod 63 drives the corresponding arc plate 13 to always act on the inner wall of the high-temperature annular forging, thus preventing the high-temperature annular forging from being displaced during transportation.

[0027] Until the first rod 51 drives the corresponding arc plate 13 to come into contact with the inner wall of the high-temperature annular forging, the corresponding buffer spring 62 is gradually compressed, so that the arc plate 13 generates a squeezing force on the inner wall of the high-temperature annular forging. When the squeezing force increases to the point that the high-temperature annular forging tends to be placed stably, the second rod 510 drives the corresponding arc plate 13 to disengage from the contact with the high-temperature annular forging, and smoothly completes the alternating clamping operation of different arc plates 13 on the inner wall of the high-temperature annular forging.

[0028] When the output end of the micro motor 15 rotates in the reverse direction, the above steps will be reversed. After the second rod 510 drives the corresponding arc plate 13 to form a certain extrusion pressure on the inner wall of the high-temperature ring forging and stabilizes it, the first rod 51 drives the corresponding arc plate 13 to disengage from the inner wall of the high-temperature ring forging, thereby realizing the alternating mutual restraint of different positions of the high-temperature ring forging. Through the alternating work of the first rod 51 and the second rod 510 with arc plates 13 that can move radially, space is actively made up for the cooling and shrinkage of the ring forging, thereby releasing thermal stress. Compared with the traditional sliding support, which essentially allows the workpiece to shrink, but the friction during the shrinkage process will still generate a certain residual stress, this application can eliminate the mechanical obstruction to cooling and shrinkage by actively giving up space.

[0029] Furthermore, when the gear ring 14 drives each transmission gear set 11 to rotate, it will drive the corresponding rotating rod 10 to rotate synchronously at a certain angle. The rotating rod 10 will then drive the circular plate 84 fixed at its bottom to rotate synchronously. The circular plate 84 will then drive the cylinder 85 fixed to it eccentrically to rotate (for example, when the cylinder 85 rotates 180 degrees in both directions, it can push the piston 83 to complete one stroke of reciprocating sealing sliding). Then, the cylinder 85 drives the piston 83 to slide a distance inside the box 82 through the connecting rod 86, and sprays out a high-speed airflow through the fan-shaped jet head 81 to help improve the gas flow inside the high-temperature ring forging and improve the heat dissipation efficiency.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A heat-resistant transport vehicle for ring forgings, characterized in that, include: Transport vehicle body (1) and multiple mounting seats (2) installed on the transport vehicle body (1); A circular box (3) is installed inside the placement seat (2). Multiple sets of switching mechanisms (5) are evenly distributed inside the circular box (3) to alternately limit and clamp the annular forging. Each set of switching mechanisms (5) includes: A first rod (51) and a second rod (510) are slidably connected through the side wall of the round box (3). A first rack (53) is fixedly connected to the first rod (51), and a second rack (511) is fixedly connected to the second rod (510). A support plate (54) is fixed to the inner wall of the round box (3), and a rotating shaft (56) is rotatably connected to the support plate (54). A first gear (55) and a second gear (57) are rotatably connected to the rotating shaft (56). The side wall of the first gear (55) is fixed with a limiting rod one (75) and a limiting rod two (76). The side wall of the second gear (57) is fixed with a limiting rod three (72) and a limiting rod four (71). Push rod one (77) and push rod two (73) are fixed at both ends of the rotating shaft (56). Both the first rod (51) and the second rod (510) are connected to an arc plate (13) through a buffer mechanism (6); The circular box (3) is equipped with a drive mechanism that drives multiple switching mechanisms (5) to move synchronously.

2. A heat-resistant transport vehicle for ring forgings according to claim 1, characterized in that, The drive mechanism includes: Multiple rotating rods (10) are rotatably connected to the inner wall of the top of the round box (3), and each of the rotating rods (10) has a transmission gear set (11) fixed to its side wall. A micro motor (15) is fixed to the inner wall of the round box (3), and the output end of the micro motor (15) and one of the rotating rods (10) are coaxially fixed. A transmission rack (12) is fixedly connected to the side wall of the first rod (51). Rotate the toothed ring (14) connected to the inner wall of the top wall of the round box (3).

3. A heat-resistant transport vehicle for ring forgings according to claim 2, characterized in that, The transmission gear set (11) is meshed with the adjacent transmission rack (12), the gear ring (14) is meshed with the transmission gear set (11), and the gear ring (14) and the first rod (51) are misaligned.

4. A heat-resistant transport vehicle for ring forgings according to claim 3, characterized in that, The side wall of the circular box (3) is provided with a plurality of heat dissipation mechanisms (8), the heat dissipation mechanisms (8) including: A fan-shaped jet nozzle (81) is fixed to the side wall of the round box (3). A circular plate (84) is fixed to the bottom wall of the rotating rod (10). A cylinder (85) is eccentrically fixed to the bottom wall of the circular plate (84). A connecting rod (86) is rotatably connected to the side wall of the cylinder (85). A box (82) is fixed to a round box (3), and a piston (83) is slidably connected inside the box (82). The connecting rod (86) and the side wall of the piston (83) are rotatably connected. The side wall of the box (82) is fixedly connected to a first one-way pipe (87) and a second one-way pipe (88), and the second one-way pipe (88) is fixedly connected to the adjacent fan-shaped jet head (81).

5. A heat-resistant transport vehicle for ring forgings according to claim 1, characterized in that, The buffer mechanism (6) includes: A slot (61) is formed at one end of the first rod (51) and the second rod (510). An extension rod (63) is elastically connected to the inner wall of the slot (61) by a buffer spring (62). The extension rod (63) is slidably connected in the corresponding slot (61). The extension rod (63) is fixedly connected to the arc plate (13).

6. A heat-resistant transport vehicle for ring forgings according to claim 1, characterized in that, The first gear (55) and the first rack (53) are meshed together, and the second gear (57) and the second rack (511) are meshed together.

7. A heat-resistant transport vehicle for ring forgings according to claim 1, characterized in that, The inner wall of the circular box (3) is fixed with an annular support frame (4), and the first rod (51) and the second rod (510) slide through the annular support frame (4).

8. A heat-resistant transport vehicle for ring forgings according to claim 2, characterized in that, The micro motor (15) is a reversible motor, and its output end is controlled by a controller to achieve alternating forward and reverse rotation.

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