A core vibrating machine auxiliary braking device

Abstract

This utility model discloses an auxiliary braking device for a core vibrating machine, comprising: a core vibrating machine and an auxiliary braking assembly; the core vibrating machine includes a geared motor, a vibration device, and a damping device; the auxiliary braking assembly includes a guide wear-resistant plate and a braking assembly, the guide wear-resistant plate being disposed on the lower surface of a second bracket, and the braking assembly including a mounting lug, a clamping plate, and brake pads; the mounting lug being disposed on the upper surface of a third bracket, with slots at both ends of the mounting lug, and clamping plates rotatably disposed within the slots; a tension spring connecting the lower parts of the two clamping plates is disposed between the two clamping plates located below the slots, and a limiting wheel rotatably disposed between the lower parts of the two clamping plates; opposing brake pads are disposed on the tops of the two clamping plates located above the slots, with a gap between the brake pads, and the guide wear-resistant plate being disposed within the gap; this device has the characteristics of concentrating inertial force, improving vibration effect, reducing vibration time, avoiding damage to the core vibrating machine, and extending service life.

Description

Technical Field

[0001] This utility model relates to the field of core vibrating machines, and in particular to an auxiliary braking device for core vibrating machines. Background Technology

[0002] The rapid development of the electric vehicle industry has spurred the production of a series of lightweight cast automotive components. Aluminum alloy casting is rapidly emerging as a leading technology. Various automotive parts, including body frames, engine cylinder heads, cylinder blocks, control arms, steering knuckles, and subframes, will utilize aluminum alloy casting. For these complex components, current manufacturing processes dictate that major manufacturers primarily employ the most traditional and efficient sand core casting method to generate greater economic value. With the deepening development of casting and automated post-processing, sand core casting has also achieved automated sand removal. This significantly improves work efficiency and reduces manual labor intensity. However, this also places higher demands on automated core-removing post-processing equipment.

[0003] The applicant's prior Chinese patent CN115365481A discloses a vibratory sand removal device, comprising: a geared motor, a vibration device, and a damping device; a turntable is provided at the output end of the geared motor, and several supports are provided on the side of the turntable away from the geared motor; the vibration device includes a drive motor and a rotating shaft, the output end of the drive motor is connected to the rotating shaft, and an eccentric wheel is provided on the rotating shaft; the damping device includes a first damper, a first leaf spring, a second damper, and a second leaf spring beam. That is, the damping device provides a damping effect; by increasing the number of leaf springs, the load on a single leaf spring is reduced, and the first and second leaf springs are arranged vertically, so that the stress load of the first and second leaf springs is consistent with the overall equipment, greatly improving the life of the leaf springs; by adjusting the size of the eccentric wheel, the excitation force generated by the equipment can be adjusted, effectively meeting the production needs under different requirements.

[0004] In actual production, the applicant found that after the drive motor stopped working, the entire equipment continued to vibrate in all directions for a period of time due to inertia. A long wait was required for the vibration to stop before the casting could be removed, which greatly affected processing efficiency and increased damage to the equipment. Furthermore, the vibration effect was found to be unsatisfactory when using this vibrating core-removing machine; therefore, there is an urgent need to provide an auxiliary braking device for the core-removing machine to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the inventors provide an auxiliary braking device for a core vibrating machine, comprising: a core vibrating machine and an auxiliary braking assembly;

[0006] The core vibrating machine includes a geared motor, a vibration device, and a damping device. The output end of the geared motor is provided with a turntable. On the side of the turntable away from the geared motor, there are a first support, a second support, and a third support arranged sequentially from top to bottom. The vibration device includes a drive motor and a rotating shaft. The output end of the drive motor is connected to the rotating shaft. The rotating shaft is vertically arranged between the first support and the third support. An eccentric wheel is provided on the rotating shaft. The damping device is arranged between the first support and the second support, and between the second support and the third support.

[0007] The auxiliary braking assembly includes a guide wear-resistant plate and a braking assembly. The guide wear-resistant plate is disposed on the lower surface of the second bracket. The braking assembly includes a mounting lug, a clamping plate, and brake pads. The mounting lug is disposed on the upper surface of the third bracket. Each end of the mounting lug has a slot. A clamping plate is rotatably disposed in each slot. A tension spring connecting the lower parts of the two clamping plates is disposed between the two clamping plates located below the slot. A limiting wheel is rotatably disposed between the lower parts of the two clamping plates. The tops of the two clamping plates located above the slot are respectively provided with opposing brake pads. A gap is provided between the brake pads, and the guide wear-resistant plate is disposed within the gap.

[0008] As a preferred structure of this utility model, the auxiliary braking assembly further includes a connecting plate and a brake pad lug. The connecting plate is fixedly disposed on the upper surface of the third bracket, the mounting lug is fixedly connected to the connecting plate, the brake pad lug is rotatably disposed on the top of the clamping plate, and the brake pad is fixedly disposed on the brake pad lug.

[0009] As a preferred structure of this utility model, the auxiliary braking assembly further includes a mounting base, which is fixedly disposed on the lower surface of the second bracket. The mounting base has a mounting groove, and the guide wear-resistant plate is fixedly connected to the mounting groove. The guide wear-resistant plate is arranged along the length direction of the second bracket, and the brake pad is arranged in a direction that is compatible with the direction of the guide wear-resistant plate.

[0010] As a preferred structure of this utility model, the ends of the first bracket, the second bracket and the third bracket near the turntable are respectively connected to the turntable, the first bracket and the second bracket are connected by a first connecting rod, the second bracket and the third bracket are connected by a second connecting rod, and the second bracket is used to fix the casting.

[0011] The shock absorption device includes a first shock absorber, a first leaf spring, a second shock absorber, and a second leaf spring. Several sets of first shock absorbers are symmetrically arranged on both sides of the upper surface of the second bracket. The top of the first shock absorber is connected to the first bracket. The symmetrical first shock absorbers are connected by vertically arranged first leaf springs. A first connecting beam is provided between two first leaf springs near the rotating shaft. Several sets of second shock absorbers are symmetrically arranged on both sides of the upper surface of the third bracket. The top of the second shock absorber is connected to the second bracket. The symmetrical second shock absorbers are connected by vertically arranged second leaf springs. A second connecting beam is provided between two second leaf springs near the rotating shaft.

[0012] The auxiliary braking assembly is located between the second and third supports near the eccentric wheel.

[0013] As a preferred structure of this utility model, the rotating shaft is vertically disposed between two first leaf springs near the turntable and two second leaf springs near the turntable. A bearing seat is provided in the middle of the rotating shaft, and the rotating shaft is fixedly connected to the second bracket through the bearing seat. The first connecting beam and the second connecting beam are respectively fixedly disposed on the second bracket.

[0014] As a preferred structure of this utility model, the second support includes a fixed frame and a vibrating frame. The fixed frame is fixedly connected to the vibrating frame, and one end of the fixed frame is connected to the turntable. The first damper and the first connecting rod are disposed on the fixed frame. The rotating shaft is fixedly connected to the vibrating frame through a bearing seat. The casting is disposed on the vibrating frame. One end of the vibrating frame with the casting is fixedly connected to a second leaf spring that is close to the casting and away from the turntable. The first connecting beam and the second connecting beam are respectively fixedly disposed on the upper surface and the lower surface of the vibrating frame. The guide wear-resistant plate is fixedly connected to the vibrating frame.

[0015] As a preferred structure of this utility model, a plurality of third connecting rods are provided below the vibration frame located below the casting, arranged along the width direction of the vibration frame. The two ends of the third connecting rods are fixedly connected to the lower surface of the vibration frame through a first fixing plate. A second fixing plate is provided in the middle of the third connecting rods. The upper surface of the second fixing plate is connected to the vibration frame through a plurality of pillars. The vibration frame is fixedly connected to a second leaf spring that is close to the casting and far away from the turntable through one end of the second fixing plate.

[0016] As a preferred structure of this utility model, the core vibrator further includes a centering device, which includes two cylinders arranged along the length of the vibrating frame and with their telescopic ends facing each other. The fixed ends of the two cylinders are respectively fixedly connected to the fixed frame, and the telescopic ends of the two cylinders are fixedly connected to the vibrating frame through a third fixed plate.

[0017] In a preferred embodiment of this invention, there are two rotating shafts, and the drive motor is connected to both rotating shafts. The two ends of the first connecting beam are respectively connected to the middle of two connected first leaf springs, and the two ends of the second connecting beam are respectively connected to the middle of two connected second leaf springs. The two rotating shafts are respectively vertically arranged on both sides of the connection between the first connecting beam and the second connecting beam, and the eccentric wheels on the two rotating shafts are staggered.

[0018] In a preferred embodiment of this invention, the two rotating shafts are a first rotating shaft and a second rotating shaft. An eccentric wheel is mounted on the first rotating shaft above and below the bearing housing, and two eccentric wheels are mounted on the second rotating shaft above and below the bearing housing. The plane of the eccentric wheel on the first rotating shaft above the bearing housing lies between the planes of the two eccentric wheels on the second rotating shaft above the bearing housing. The distance between the two eccentric wheels on the second rotating shaft above the bearing housing is greater than the thickness of the eccentric wheel on the first rotating shaft above the bearing housing. The plane of the eccentric wheel on the first rotating shaft below the bearing housing lies between the planes of the two eccentric wheels on the second rotating shaft below the bearing housing. The distance between the two eccentric wheels on the second rotating shaft below the bearing housing is greater than the thickness of the eccentric wheel on the first rotating shaft below the bearing housing.

[0019] Unlike existing technologies, the above-mentioned technical solution achieves the following beneficial effects: During the operation of the vibration device, the auxiliary braking assembly allows the core vibrator to vibrate in one direction, thereby effectively concentrating the vibration force, improving the vibration effect, and minimizing or avoiding the inertial force of the core vibrator in all directions, thus reducing the damage to the core vibrator caused by the inertial force; After the vibration device stops working, the auxiliary braking assembly can effectively concentrate the inertial force, further utilize the inertial force for sand removal, and accelerate the elimination of the inertial force, allowing the core vibrator to stop vibrating more quickly, further reducing the damage to the core vibrator caused by the inertial force. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the core-vibrating machine auxiliary braking device described in a specific embodiment;

[0021] Figure 2 This is a schematic diagram of the installation structure of the auxiliary braking assembly described in a specific embodiment;

[0022] Figure 3 This is a schematic diagram of the auxiliary braking assembly structure described in a specific embodiment;

[0023] Figure 4 An exploded view of the auxiliary braking assembly described in the specific embodiment;

[0024] Figure 5This is a partial structural diagram of the auxiliary braking device for the core vibrating machine described in a specific embodiment;

[0025] Figure 6 This is a schematic diagram of the shaft connection structure described in the specific implementation method;

[0026] Figure 7 This is a schematic diagram of the first leaf spring connection structure in a specific implementation method;

[0027] Figure 8 This is a schematic diagram of the connection structure between the first connecting beam and the second connecting beam in a specific implementation method;

[0028] Figure 9 Schematic diagram of the eccentric block connection structure described in the specific implementation embodiment Figure 1 ;

[0029] Figure 10 Schematic diagram of the eccentric block connection structure described in the specific implementation embodiment Figure 2 ;

[0030] Figure 11 This is a schematic diagram of the connection structure between the fixed frame and the vibration frame as described in the specific embodiment;

[0031] Figure 12 This is a schematic diagram of the vibration frame connection structure described in a specific embodiment;

[0032] Figure 13 This is a schematic diagram of the centering device and the connection structure of the first fixing plate and the second fixing plate described in the specific embodiment;

[0033] Figure 14 This is a schematic diagram of the connection structure of the first fixing plate, the second fixing plate, and the third fixing plate in a specific implementation method;

[0034] Figure 15 This is a schematic diagram of the transmission structure of the drive motor described in a specific embodiment;

[0035] Figure 16 This is a schematic diagram of the sand guiding device and base structure described in a specific embodiment.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Vibration core machine; 101. Gear motor; 102. Turntable; 103. First support; 104. Second support; 1041. Fixing frame; 1042. Vibration frame; 105. Third support; 106. First connecting rod; 107. Second connecting rod; 108. Third connecting rod; 109. First fixing plate; 110. Second fixing plate; 111. Support column; 201. Drive motor; 2011. Left vibration drive motor; 2012. Right vibration drive motor; 2013. Synchronous pulley; 202. Rotating shaft; 2021. First rotating shaft; 2022. Second rotating shaft; 203. Bearing seat; 204. 301. Eccentric wheel; 302. First shock absorber; 303. Second shock absorber; 304. First leaf spring; 305. Second leaf spring; 306. First connecting beam; 307. Second connecting beam; 4. Centering device; 401. Cylinder; 402. Third fixing plate; 501. Base; 502. Motor base; 601. Sand guiding device; 7. Auxiliary brake assembly; 701. Mounting seat; 702. Mounting groove; 703. Guide wear-resistant plate; 704. Mounting ear seat; 705. Clamping plate; 706. Brake pad; 707. Tension spring; 708. Limit wheel; 709. Connecting plate; 710. Brake pad ear seat; 711. Slot. Detailed Implementation

[0038] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0039] like Figures 1 to 16 As shown, this embodiment provides an auxiliary braking device for a core vibrating machine, including: a core vibrating machine 1 and an auxiliary braking assembly 7;

[0040] The core vibrating machine 1 includes a geared motor 101, a vibration device, and a damping device. The output end of the geared motor 101 is provided with a turntable 102. On the side of the turntable 102 away from the geared motor, there are a first support 103, a second support 104, and a third support 105 arranged sequentially from top to bottom. The vibration device includes a drive motor 201 and a rotating shaft 202. The output end of the drive motor 201 is connected to the rotating shaft. The rotating shaft 202 is vertically arranged between the first support 103 and the third support 105. An eccentric wheel 204 is provided on the rotating shaft. The damping device is arranged between the first support 103 and the second support 104, and between the second support 104 and the third support 105.

[0041] like Figures 1 to 4As shown, the auxiliary braking assembly 7 includes a guide wear-resistant plate 703 and a braking assembly. The guide wear-resistant plate 703 is disposed on the lower surface of the second bracket 104. The braking assembly includes a mounting ear 704, a clamping plate 705, and a brake pad 706. The mounting ear 704 is disposed on the upper surface of the third bracket. The two ends of the mounting ear 704 are respectively provided with slots 711. The clamping plate is rotatably disposed in the slots 711. A tension spring 707 connecting the lower parts of the two clamping plates is provided between the two clamping plates located below the slots 711. A limiting wheel 708 is rotatably disposed between the lower parts of the two clamping plates 705. The tops of the two clamping plates located above the slots 711 are respectively provided with opposing brake pads 706. There is a gap between the brake pads 706, and the guide wear-resistant plate 703 is disposed in the gap.

[0042] In the specific implementation of the above embodiments, when the vibration device is working, it drives the second support to vibrate. Under the action of the guide wear-resistant plate and the brake assembly, the second support vibrates along the direction set by the guide wear-resistant plate, that is, the vibration direction is unidirectional, which can effectively concentrate the vibration force and inertial force, and improve the vibration effect. During the vibration, the tension spring can open the gap between the clamping plates at the other end, so that the guide wear-resistant plate can move precisely between the brake pads. The limit wheel can effectively prevent the tension spring from being overloaded and tightened, which would increase the gap between the tops of the two clamping plates, causing the guide wear-resistant plate to wobble in the gap between the brake pads, affecting the vibration sand removal effect and causing damage to the core vibrator. After the vibration device stops working, the core vibrator will continue to vibrate for a period of time under the action of inertial force. This auxiliary brake device can effectively concentrate the inertial force, improve the utilization rate of the inertial force, improve the vibration effect, and effectively shorten the vibration duration, thereby minimizing the damage of inertial force to the core vibrator. In this embodiment, the guide wear-resistant plate not only provides guidance, ensuring that the second support vibrates in the direction set by the guide wear-resistant plate during vibration, but also uses wear-resistant material to improve service life.

[0043] like Figure 3 and Figure 4 As shown, in some embodiments, the auxiliary braking assembly further includes a connecting plate 709 and a brake pad lug 710. The connecting plate 709 is fixedly mounted on the upper surface of the third bracket, and the mounting lug 704 is fixedly connected to the connecting plate 709. The brake pad lug 710 is rotatably mounted on the top of the clamping plate 705, and the brake pad 706 is fixedly mounted on the brake pad lug 710. In this embodiment, the connecting plate facilitates the installation of the mounting lug, increases its height, and makes it easier to install the limit wheel and tension spring. The brake pad lug facilitates the installation of the brake pad, and the rotatable connection between the brake pad lug and the clamping plate prevents the brake pad from tilting due to vibration and making hard contact with the guide wear-resistant plate, thus avoiding damage.

[0044] To facilitate the installation of the guide wear-resistant plate, in this embodiment, the auxiliary brake assembly also includes a mounting base 701. The mounting base 701 is fixedly disposed on the lower surface of the second bracket, and a mounting groove 702 is provided on the mounting base. The guide wear-resistant plate 703 is fixedly connected to the mounting groove 702. Furthermore, in this embodiment, the guide wear-resistant plate is arranged along the length direction of the second bracket, and the brake pad setting direction is adapted to the setting direction of the guide wear-resistant plate; arranging it along the length direction allows the core vibrator to vibrate and remove sand along the length direction of the second bracket, resulting in the best effect.

[0045] like Figures 5 to 16 As shown, in this embodiment, the first bracket 103, the second bracket 104, and the third bracket 105 are respectively connected to the turntable 102 at their ends near the turntable 102. The first bracket 103 and the second bracket 104 are connected by a first connecting rod 106, and the second bracket 104 and the third bracket 105 are connected by a second connecting rod 107. The second bracket 104 is used to fix the casting. The shock absorption device includes a first shock absorber 301, a first leaf spring 303, a second shock absorber 302, and a second leaf spring 304. Several sets of first shock absorbers are symmetrically arranged on both sides of the upper surface of the second bracket 104. The first shock absorber 301 is connected at its top to the first support 103. Symmetrical first shock absorbers 301 are connected by vertically arranged first leaf springs 303. A first connecting beam 305 is provided between two first leaf springs 303 near the rotating shaft. Several sets of second shock absorbers 302 are symmetrically arranged on both sides of the upper surface of the third support 105. The top of each second shock absorber 302 is connected to the second support 104. Symmetrical second shock absorbers 302 are connected by vertically arranged second leaf springs 304. A second connecting beam 306 is provided between two second leaf springs 304 near the rotating shaft. In this embodiment, two auxiliary braking components 7 are located between the second support 104 and the third support 105 near the eccentric wheel 204, respectively located between the second support 104 and the third support 105 on both sides of the eccentric wheel 204.

[0046] In the above embodiment, the turntable 102 is rotated by the geared motor 101, which flips the support set on one side of the turntable 102, thereby dumping out the sand core that has fallen on the support. The first shock absorber 301 and the second shock absorber 302 in the shock absorption device are existing technologies. They can provide effective shock absorption between the supports, avoid hard contact, excessive vibration, and damage to the ground. By setting the first leaf spring 303 and the second leaf spring 304, the number of leaf springs is increased, reducing the load on a single leaf spring. The first leaf spring 303 and the second leaf spring 304 are set vertically, so that the stress bearing of the first leaf spring 303 and the second leaf spring 304 is consistent with the overall equipment, which greatly improves the life of the leaf springs. The setting of the first shock absorber 301 and the second shock absorber 302 effectively reduces the alternating load borne by the first leaf spring 303 and the second leaf spring 304, further ensuring the service life of the first leaf spring 303 and the second leaf spring 304. In addition, the setting of the first connecting beam 305 and the second connecting beam 306 makes the first leaf spring 303 The force distribution between the first leaf spring 303 and the second leaf spring 304 is more uniform, further reducing the alternating load on the first leaf spring 303 and the second leaf spring 304, and further ensuring the service life of the first leaf spring 303 and the second leaf spring 304. The setting of the rotating shaft and eccentric wheel 204 in the vibration device can effectively adjust the excitation force generated by the equipment by adjusting the size of the eccentric wheel 204, effectively meeting the production needs under different requirements. Moreover, the structure is simple and easy to install. In this embodiment, the vibration motor is replaced by an ordinary motor driving the eccentric block. Although the two are similar in principle, both obtain the excitation force by using the centrifugal force generated by the high-speed rotation of the shaft and the eccentric block. The vibration motor has its own eccentric block, but the heat dissipation effect is poor, the life is short, and the size of the eccentric block is not easy to adjust, which can easily lead to insufficient excitation force, especially for castings with more complex structures, the sand removal effect is poor. In this embodiment, the drive motor 201 is replaced with an eccentric block structure. Through synchronous belt transmission, the excitation force generated by the equipment can be adjusted by adjusting the size of the eccentric block. Moreover, the drive motor 201 is easy to install, and the transmission components are strengthened to effectively improve the service life of the equipment.

[0047] To further improve the vibration effect and make the excitation force more uniform, in some embodiments, eccentric wheels 204 are respectively provided on the rotating shaft located above and below the bearing housing 203 (e.g., Figure 9 and Figure 10 (As shown).

[0048] In different embodiments, two rotating shafts can be configured, with the drive motor 201 connected to both shafts. The two ends of the first connecting beam 305 are respectively connected to the middle of two connected first leaf springs 303, and the two ends of the second connecting beam 306 are respectively connected to the middle of two connected second leaf springs 304. The two rotating shafts are vertically positioned on either side of the connection between the first connecting beam 305 and the second connecting beam 306, with the eccentric wheels 204 on the two shafts staggered. Figure 8 , Figure 9 and Figure 10 As shown.

[0049] In the above embodiments, such as Figure 10 As shown, the two rotating shafts are a first rotating shaft 2021 and a second rotating shaft 2022, respectively. An eccentric wheel 204 is respectively mounted on the first rotating shaft 2021 above and below the bearing housing 203. In this embodiment, an eccentric wheel refers to a single integral eccentric wheel or two or more eccentric wheels stacked together. Two eccentric wheels 204 are respectively mounted on the second rotating shaft 2022 above and below the bearing housing 203. The plane of the eccentric wheel 204 on the first rotating shaft 2021 above the bearing housing 203 is located between the planes of the two eccentric wheels 204 on the second rotating shaft 2022 above the bearing housing 203. The distance between the two eccentric wheels 204 on the second rotating shaft 2022 above the bearing housing 203 is greater than the thickness of the eccentric wheel 204 on the first rotating shaft 2021 above the bearing housing 203. The plane where the eccentric wheel 204 on the first rotating shaft 2021 below the bearing housing 203 is located is between the planes where the two eccentric wheels 204 on the second rotating shaft 2022 below the bearing housing 203 are located. The distance between the two eccentric wheels 204 on the second rotating shaft 2022 below the bearing housing 203 is greater than the thickness of the eccentric wheel 204 on the first rotating shaft 2021 below the bearing housing 203. In this embodiment, the excitation force generated by the equipment can be further adjusted by adjusting the size of the eccentric blocks on the two rotating shafts, thereby meeting different core removal requirements. In this embodiment, the staggered arrangement of the eccentric blocks on the first rotating shaft 2021 and the second rotating shaft 2022 effectively saves the space required for the eccentric blocks, making the structure more compact.

[0050] like Figure 6 and Figure 7As shown, in this embodiment, the rotating shaft is vertically positioned between two first leaf springs 303 and two second leaf springs 304 near the turntable 102. A bearing seat 203 is provided in the middle of the rotating shaft, and the rotating shaft is fixedly connected to the second support 104 via the bearing seat 203. A first connecting beam 305 and a second connecting beam 306 are respectively fixedly mounted on the second support 104. In this embodiment, the first connecting beam 305 and the second connecting beam 306 are fixedly connected to the second support 104, thereby further improving the overall connectivity of the equipment. This makes the force on the first leaf springs 303 and the second leaf springs 304 more uniform, reduces the alternating load borne by the first leaf springs 303 and the second leaf springs 304, and further ensures the service life of the first leaf springs 303 and the second leaf springs 304, as well as the service life of the first connecting beams 305 and the second connecting beams 306.

[0051] like Figure 7 , Figure 11 and Figure 12 As shown, in order to facilitate the installation of the casting to be cored, in this embodiment, the second bracket 104 includes a fixed bracket 1041 and a vibrating bracket 1042. The fixed bracket 1041 and the vibrating bracket 1042 are fixedly connected. One end of the fixed bracket 1041 is connected to the turntable 102. The first damper and the first connecting rod 106 are disposed on the fixed bracket 1041. The rotating shaft is fixedly connected to the vibrating bracket 1042 through the bearing seat 203. The casting is disposed on the vibrating bracket 1042. One end of the vibrating bracket 1042 with the casting is fixedly connected to the second leaf spring 304 which is close to the casting and away from the turntable 102. The first connecting beam 305 and the second connecting beam 306 are respectively fixedly disposed on the upper surface and the lower surface of the vibrating bracket 1042. The guide wear-resistant plate 703 is fixedly connected to the vibrating bracket. In this embodiment, one end of the vibration frame 1042 with the casting is fixedly connected to the second leaf spring 304 which is close to the casting and far away from the turntable 102. This can effectively improve the vibration effect of the vibration frame 1042, making the excitation force more uniform and achieving the best excitation effect. The second leaf spring 304 provides support for the vibration frame 1042, preventing the vibration frame 1042 from bending due to the weight of the casting or uneven force.

[0052] In some embodiments, such as Figure 13 and Figure 14As shown, in order to further improve the stability and vibration effect of the vibration frame 1042, in this embodiment, a plurality of third connecting rods 108 are provided below the vibration frame 1042 located below the casting, arranged along the width direction of the vibration frame 1042. The two ends of the third connecting rods 108 are fixedly connected to the lower surface of the vibration frame 1042 through the first fixing plate 109. A second fixing plate 110 is provided in the middle of the third connecting rods 108. The upper surface of the second fixing plate 110 is connected to the vibration frame 1042 through a plurality of pillars 111. The vibration frame 1042 is fixedly connected to a second leaf spring 304 that is close to the casting and away from the turntable 102 through one end of the second fixing plate 110.

[0053] In some embodiments, such as Figure 13 and Figure 14 As shown, the equipment also includes a centering device 4, which comprises two cylinders 401 arranged along the length of the vibrating frame 1042 with their telescopic ends facing each other. The fixed ends of the two cylinders 401 are fixedly connected to the fixed frame 1041, and the telescopic ends of the two cylinders 401 are fixedly connected to the vibrating frame 1042 through a third fixing plate 402. In this embodiment, the centering device 4 is configured to finely adjust the vibrating frame 1042, ensuring that the starting and stopping positions of the casting remain consistent, thereby ensuring that the equipment is more suitable for automated production of casting post-processing.

[0054] To further reduce vibration damage to the ground, in this embodiment, the device also includes a base 501. The geared motor 101 is fixedly connected to the base 501 via a motor mount 502. The drive motor 201 includes a left vibration drive motor 2011 and a right vibration drive motor 2012. The left vibration drive motor 2011 and the right vibration drive motor 2012 are respectively fixedly mounted on the first bracket 103. The left vibration drive motor 2011 and the right vibration drive motor 2012 are respectively connected to the rotating shaft via a synchronous pulley 2013 (e.g., ...). Figure 15 and Figure 16 (As shown).

[0055] In different embodiments, to facilitate the collection and cleaning of the crushed sand cores, the device further includes a sand guiding device 601, which is located below the second support 104 and is used to catch the crushed sand cores. Figure 16 As shown.

[0056] Working principle of the core-removing machine: When it is necessary to remove sand from the casting, the casting is first fixed on the vibrating frame 1042. At this time, the drive motor 201 starts to work, driving the rotating shaft to rotate. The rotation drives the eccentric block set on it to rotate, thereby generating excitation force. When it is necessary to adjust the magnitude of the excitation force, it is only necessary to change the size or number of eccentric blocks. Under the action of the excitation force, the sand core on and inside the casting begins to be crushed. The crushed sand core falls into the sand guiding device 601 below. A small amount of sand core remaining on and inside the casting is rotated by the reduction motor 101 driving the turntable 102 to rotate, thereby realizing the flipping of the support and the casting set on the support, and pouring the remaining sand core into the sand guiding device 601 below. When the sand removal is completed, the drive motor 201 stops working, and the casting can be processed for post-processing.

[0057] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection for this utility model.

Claims

1. A shock core machine assisted braking device, characterized in that, include: Core vibrating machine and auxiliary braking assembly; The core vibrating machine includes a geared motor, a vibration device, and a damping device. The output end of the geared motor is provided with a turntable. On the side of the turntable away from the geared motor, there are a first support, a second support, and a third support arranged sequentially from top to bottom. The vibration device includes a drive motor and a rotating shaft. The output end of the drive motor is connected to the rotating shaft. The rotating shaft is vertically arranged between the first support and the third support. An eccentric wheel is provided on the rotating shaft. The damping device is arranged between the first support and the second support, and between the second support and the third support. The auxiliary braking assembly includes a guide wear-resistant plate and a braking assembly. The guide wear-resistant plate is disposed on the lower surface of the second bracket. The braking assembly includes a mounting lug, a clamping plate, and brake pads. The mounting lug is disposed on the upper surface of the third bracket. Each end of the mounting lug has a slot. A clamping plate is rotatably disposed in each slot. A tension spring connecting the lower parts of the two clamping plates is disposed between the two clamping plates located below the slot. A limiting wheel is rotatably disposed between the lower parts of the two clamping plates. The tops of the two clamping plates located above the slot are respectively provided with opposing brake pads. A gap is provided between the brake pads, and the guide wear-resistant plate is disposed within the gap.

2. The ratcheting hand brake assembly of claim 1, wherein: The auxiliary braking assembly also includes a connecting plate and a brake pad lug. The connecting plate is fixedly mounted on the upper surface of the third bracket, the mounting lug is fixedly connected to the connecting plate, the brake pad lug is rotatably mounted on the top of the clamping plate, and the brake pad is fixedly mounted on the brake pad lug.

3. The ratcheting hand brake assembly of claim 1, wherein: The auxiliary braking assembly also includes a mounting base, which is fixedly disposed on the lower surface of the second bracket. The mounting base has a mounting groove, and the guide wear-resistant plate is fixedly connected to the mounting groove. The guide wear-resistant plate is arranged along the length direction of the second bracket, and the brake pad is arranged in a direction that is compatible with the direction of the guide wear-resistant plate.

4. The ratcheting mechanism of any one of claims 1 to 3, wherein: The first bracket, the second bracket, and the third bracket are respectively connected to the turntable at the ends near the turntable. The first bracket and the second bracket are connected by a first connecting rod, and the second bracket and the third bracket are connected by a second connecting rod. The second bracket is used to fix the casting. The shock absorption device includes a first shock absorber, a first leaf spring, a second shock absorber, and a second leaf spring. Several sets of first shock absorbers are symmetrically arranged on both sides of the upper surface of the second bracket. The top of the first shock absorber is connected to the first bracket. The symmetrical first shock absorbers are connected by vertically arranged first leaf springs. A first connecting beam is provided between two first leaf springs near the rotating shaft. Several sets of second shock absorbers are symmetrically arranged on both sides of the upper surface of the third bracket. The top of the second shock absorber is connected to the second bracket. The symmetrical second shock absorbers are connected by vertically arranged second leaf springs. A second connecting beam is provided between two second leaf springs near the rotating shaft. The auxiliary braking assembly is located between the second and third supports near the eccentric wheel.

5. The core-vibrating machine auxiliary braking device according to claim 4, characterized in that: The rotating shaft is vertically positioned between two first leaf springs near the turntable and two second leaf springs near the turntable. A bearing seat is provided in the middle of the rotating shaft, and the rotating shaft is fixedly connected to the second bracket through the bearing seat. The first connecting beam and the second connecting beam are respectively fixedly mounted on the second bracket.

6. The core-vibrating machine auxiliary braking device according to claim 5, characterized in that: The second support includes a fixed frame and a vibrating frame. The fixed frame is fixedly connected to the vibrating frame, and one end of the fixed frame is connected to the turntable. The first damper and the first connecting rod are mounted on the fixed frame. The rotating shaft is fixedly connected to the vibrating frame through a bearing seat. The casting is mounted on the vibrating frame. One end of the vibrating frame with the casting is fixedly connected to a second leaf spring that is close to the casting and away from the turntable. The first connecting beam and the second connecting beam are fixedly mounted on the upper and lower surfaces of the vibrating frame, respectively. The guide wear-resistant plate is fixedly connected to the vibrating frame.

7. The core-vibrating machine auxiliary braking device according to claim 6, characterized in that: Below the vibrating frame located below the casting, there are several third connecting rods arranged along the width direction of the vibrating frame. The two ends of the third connecting rods are fixedly connected to the lower surface of the vibrating frame through the first fixing plate. The middle part of the third connecting rod is provided with a second fixing plate. The upper surface of the second fixing plate is connected to the vibrating frame through several pillars. The vibrating frame is fixedly connected to a second leaf spring that is close to the casting and far away from the turntable through one end of the second fixing plate.

8. The core-vibrating machine auxiliary braking device according to claim 6, characterized in that: The core vibrating machine also includes a centering device, which includes two cylinders arranged along the length of the vibrating frame and with their telescopic ends facing each other. The fixed ends of the two cylinders are respectively fixedly connected to the fixed frame, and the telescopic ends of the two cylinders are fixedly connected to the vibrating frame through a third fixed plate.

9. The core-vibrating machine auxiliary braking device according to claim 5, characterized in that: There are two rotating shafts, and the drive motor is connected to the two rotating shafts. The two ends of the first connecting beam are respectively connected to the middle of the two connected first leaf springs, and the two ends of the second connecting beam are respectively connected to the middle of the two connected second leaf springs. The two rotating shafts are respectively vertically arranged on both sides of the connection between the first connecting beam and the second connecting beam, and the eccentric wheels on the two rotating shafts are staggered.

10. The core-vibrating machine auxiliary braking device according to claim 9, characterized in that: The two rotating shafts are designated as the first rotating shaft and the second rotating shaft. An eccentric wheel is mounted on the first rotating shaft above and below the bearing housing. Two eccentric wheels are mounted on the second rotating shaft above and below the bearing housing. The plane of the eccentric wheel on the first rotating shaft above the bearing housing lies between the planes of the two eccentric wheels on the second rotating shaft above the bearing housing. The distance between the two eccentric wheels on the second rotating shaft above the bearing housing is greater than the thickness of the eccentric wheel on the first rotating shaft above the bearing housing. The plane of the eccentric wheel on the first rotating shaft below the bearing housing lies between the planes of the two eccentric wheels on the second rotating shaft below the bearing housing. The distance between the two eccentric wheels on the second rotating shaft below the bearing housing is greater than the thickness of the eccentric wheel on the first rotating shaft below the bearing housing.

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