Sand box compacting device for car coupler casting

Abstract

The utility model discloses a compacting device for a sand box for a car coupler casting, which comprises an oscillating component vertically mounted at the bottom of a placing plate and used for vibrating molding sand in the sand box in the vertical direction; the vibration assembly comprises a first rotating driving part, a driving gear, a driven gear, a vibration exciter, a plurality of springs and a plurality of supporting rods, the vibration exciter is installed at the bottom of the containing plate, the driven gear is installed on a connecting shaft of the vibration exciter, the driven gear is connected with the driving gear through a belt, and the supporting rods are connected with the driving gear through a belt. And the driving gear is fixedly connected with the output end of the first rotation driving part. The vibration assembly capable of generating vibration in the vertical direction is arranged at the bottom of the placement plate, so that molding sand in the sand box is vibrated and compacted by the vertical vibration amplitude generated after the vibration assembly is started, the molding sand in the sand box is dense in structure and free of loose gaps, and the pouring forming efficiency of the car coupler casting is improved.

Description

Technical Field

[0001] This utility model relates to the field of coupler production technology, specifically to a sand box compaction device for coupler castings. Background Technology

[0002] Couplers are hooks at both ends of a train car or locomotive, serving to connect, pull, and buffer. They are vehicle components used to couple locomotives and cars, or cars and cars together, to transmit traction and impact forces, and to maintain a certain distance between vehicles.

[0003] Before casting couplers, existing methods require compaction of the molding sand to prevent uneven pouring. However, existing sand box compaction devices (such as the one described in application number 202020395269.5 for sand casting) use a compaction plate with a vibrator. A first electric hydraulic cylinder moves the compaction plate downwards, vibrating the sand box during the compaction process. This compaction device can only vibrate from the top with a small amplitude, making it ineffective at compacting molding sand of varying thicknesses within the sand box. This can lead to cracks in the coupler casting during pouring, affecting the casting quality. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a sand box compaction device for coupler castings to solve the technical problem that the existing compaction devices can only vibrate from the top and the amplitude is small, which makes it impossible to compact molding sand of different thicknesses in the sand box, resulting in cracks in the coupler castings during the casting process and affecting the casting quality of the coupler.

[0005] According to the technical solution provided in the embodiments of this application, a sand box compaction device for coupler castings includes a vibration component, which is vertically installed at the bottom of the placement plate for vertical vibration of molding sand inside the sand box.

[0006] The oscillation assembly includes a first rotation drive, a driving gear, a driven gear, an exciter, several springs, and several support rods. The exciter is installed at the bottom of the placement plate, and the driven gear is installed on the connecting shaft of the exciter. The driven gear is connected to the driving gear via a belt, and the driving gear is fixedly connected to the output end of the first rotation drive. The several springs and several support rods are evenly arranged at the bottom of the placement plate so that the first rotation drive drives the placement plate to generate vertical amplitude.

[0007] The compaction assembly includes a telescopic drive component, a connecting plate, a compaction plate, and several adjustment mechanisms. The top of the connecting plate is fixedly connected to the output end of the telescopic drive component, and the connecting plate is provided with several adjustment slots. Each adjustment slot is equipped with a corresponding adjustment mechanism, and the several adjustment mechanisms are evenly installed on the top of the compaction plate so that the several adjustment mechanisms can adjust the compaction height and compaction pressure of the compaction plate.

[0008] Furthermore, the placement plate is provided with several through holes, and each of the support rods passes through the through holes and is movably connected to the placement plate.

[0009] Furthermore, the adjusting mechanism includes a piston, a piston rod, and a return element. The piston is movably installed in the adjusting groove, and the return element is a metal spring that is sleeved on the piston rod for returning the piston rod.

[0010] Furthermore, each of the regulating slots is provided with an air inlet at the top, and a corresponding air inlet pipe is installed on each air inlet. Each air inlet pipe is connected to an air supply pipe, and the air supply pipe is connected to an air source unit.

[0011] Furthermore, the connecting plate is provided with several positioning rods, and the sand box is provided with several corresponding positioning slots, with each positioning rod engaging in the positioning slot.

[0012] Furthermore, the placement plate is also screwed with several fixing plates, which are installed on the fixing bracket by adjusting bolts.

[0013] Furthermore, an N-shaped support frame is provided on the outside of the placement plate, and the compaction component is installed on the support frame.

[0014] In summary, the beneficial effects of this application are as follows:

[0015] 1. By setting a vertically vibrating component at the bottom of the placement plate, the vertical amplitude generated after the vibrating component is activated will vibrate and compact the molding sand in the sand box, so that the molding sand in the sand box has a dense structure without loose gaps, thereby improving the casting efficiency of the coupler casting.

[0016] Second, by setting a compaction assembly with an adjustment mechanism on the support frame, the telescopic drive component on the compaction assembly drives the connecting plate to move down, so that the connecting plate is positioned and locked with the sand box. At the same time, the compaction plate movably connected to the bottom of the connecting plate moves down under the positive pressure air source with different pressures output by the air source machine, so that the compaction plate compacts the molding sand in the sand box, and compacts the molding sand at different depths in the sand box, thereby improving the casting quality of the coupler casting. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the front structure of this utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the present invention.

[0021] Figure 4 This is a front cross-sectional view of the present invention.

[0022] Figure 5 This is a schematic diagram of the bottom structure of this utility model.

[0023] The following components are labeled in the diagram: Vibration component-100, First rotation drive component-110, Drive gear-120, Driven gear-130, Vibrator-140, Spring-150, Support rod-160, Placement plate-200, Compaction component-300, Telescopic drive component-310, Connecting plate-320, Positioning rod-321, Compaction plate-330, Adjustment mechanism-340, Piston-341, Piston rod-342, Return component-343, Inlet pipe-350, Air delivery pipe-360, Air source unit-370, Fixing plate-400, Support frame-500. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] A sand box compaction device for coupler castings, the structure of which is as follows: Figures 1-5As shown, the device includes an oscillation assembly 100, which is vertically mounted on the bottom of the placement plate 200 for vertical vibration of molding sand inside the sand box. The oscillation assembly 100 includes a first rotation drive 110, a drive gear 120, a driven gear 130, an exciter 140, several springs 150, and several support rods 160. The exciter 140 is mounted on the bottom of the placement plate 200, and the driven gear 130 is mounted on the connecting shaft of the exciter 140. The driven gear 130 is connected to the drive gear 120 via a belt, and the drive gear 120 is fixedly connected to the output end of the first rotation drive 110. The several springs 150 and several support rods 160 are also included. Rods 160 are evenly arranged at the bottom of the placement plate 200 so that the first rotation drive 110 drives the placement plate 200 to generate vertical amplitude; the compaction assembly 300 includes a telescopic drive 310, a connecting plate 320, a compaction plate 330 and several adjustment mechanisms 340. The top of the connecting plate 320 is fixedly connected to the output end of the telescopic drive 310, and several adjustment slots are provided on the connecting plate 320. Each adjustment slot is equipped with a corresponding adjustment mechanism 340, and several adjustment mechanisms 340 are evenly installed on the top of the compaction plate 330 so that several adjustment mechanisms 340 can adjust the compaction height and compaction pressure of the compaction plate 330.

[0027] During the compaction process of the sand box compaction device compacting the molding sand in the sand box for the coupler casting, the sand box is placed on top of the placement plate 200 so that several fixing plates 400 screwed onto the placement plate 200 fix the sand box around its perimeter. Simultaneously, the telescopic drive component 310 on the compaction assembly 300 drives the connected connecting plate 320 to move downwards vertically, so that several positioning rods 321 at the bottom of the connecting plate 321 engage with corresponding positioning slots on the sand box. The vibration assembly 100 at the bottom of the placement plate 200 is activated, causing the first rotation drive component 110 on the vibration assembly 100 to drive the drive gear 120 to rotate. This causes the drive gear 120 to drive the connected belt to rotate, which in turn drives the connected driven gear 130 to rotate, thus rotating the driven gear 130. The connecting shaft of 130 rotates, causing the eccentric hammer of the vibrator 140 mounted on the connecting shaft to rotate. This causes the placement plate 200, on which the vibrator 140 is mounted, to vibrate vertically, ensuring that the molding sand in the sand box is tightly connected during the vibration process, preventing gaps or voids that could cause gaps in the cast coupler. At the same time, the adjusting mechanism 340 on the compaction assembly 300 is activated, causing the air source machine 370 to output positive pressure air. This positive pressure air enters the adjusting groove, pushing the piston rod 342 of the adjusting mechanism 340 installed in the adjusting groove to extend. This causes the compaction plate 330 connected to the bottom of each piston rod 342 to move downwards vertically, compacting and leveling the vibrated molding sand, thereby improving the casting quality of the coupler casting.

[0028] As a preferred embodiment, please refer to Figure 1 and Figure 2 The placement plate 200 is provided with several through holes, and each support rod 160 passes through the through holes and is movably connected to the placement plate 200, so that during the vibration of the vibration component 100 on the placement plate 200, the placement plate 200 moves vertically along several support plates.

[0029] As a preferred embodiment, please refer to Figure 3 and Figure 4 The adjusting mechanism 340 includes a piston 341, a piston rod 342, and a return element 343. The piston 341 is movably installed in the adjusting groove. The top of the piston rod 342 is connected to the piston 341. The return element 343 is a metal spring 150, which is sleeved on the piston rod 342. After the air source machine 370 outputs positive pressure air, it pushes the piston 341 in the adjusting groove to move down along the vertical direction of the adjusting groove, thereby compressing the metal spring 150 of the return element 343 sleeved on the piston rod 342. After the compression is completed, the metal spring 150 of the return element 343 returns, and the elastic potential energy generated by the return pushes the piston rod 342 to return.

[0030] As a preferred embodiment, please refer to Figure 3 and Figure 4 Each regulating slot is also provided with an air inlet at the top, and a corresponding air inlet pipe 350 is installed on each air inlet. Each air inlet pipe 350 is connected to an air delivery pipe 360, and the air delivery pipe 360 ​​is connected to an air source machine 370, so that the positive pressure air source air delivery pipe 360 ​​output by the air source machine 370 enters each air inlet pipe 350, thereby pushing the piston rod 342 on each regulating mechanism 340 to move down in the vertical direction, so that the compaction plate 330 connected to the bottom of the piston rod 342 moves down, thereby compacting the molding sand in the sand box.

[0031] As a preferred embodiment, please refer to Figure 1 and Figure 2 The connecting plate 320 is also provided with several positioning rods 321, and the sand box is provided with several corresponding positioning grooves, so that the connecting plate 320 moves down vertically under the drive of the telescopic drive component 310, thereby causing the several positioning rods 321 installed at the bottom of the connecting plate 320 to engage in the corresponding positioning grooves on the sand box during the downward movement, thereby enabling the compaction component 300 to position and fix the sand box vertically.

[0032] As a preferred embodiment, please refer to Figure 1 and Figure 3 Several fixing plates 400 are screwed onto the placement plate 200. The fixing plates 400 are installed on the fixing bracket by adjusting bolts so that the fixing plates 400 fix the sand box around the perimeter, preventing the sand box from sliding during the vibration compaction process and improving the compaction efficiency of the sand box for coupler casting.

[0033] As a preferred embodiment, please refer to Figure 1 and Figure 3 An N-shaped support frame 500 is provided on the outside of the placement plate 200. A compaction component 300 is installed on the support frame 500 so that the compaction component 300 moves down along the vertical direction of the support frame 500, thereby compacting the molding sand in the sand box and improving the casting quality of the coupler casting.

[0034] The working principle of this utility model is as follows:

[0035] During the compaction process of the sand box for the coupler casting, the sand box is placed on top of the placement plate 200 so that several fixing plates 400 screwed onto the placement plate 200 fix the sand box around its perimeter. Simultaneously, the telescopic drive 310 on the compaction assembly 300 drives the connecting plate 320 to move vertically downwards, so that several positioning rods 321 at the bottom of the connecting plate 320 engage with corresponding positioning slots on the sand box. The vibration assembly 100 at the bottom of the placement plate 200 is then activated, causing the first rotation drive 110 on the vibration assembly 100 to drive the drive gear 120 to rotate. This drives the connected belt to rotate, which in turn drives the connected driven gear 130 to rotate, causing the connecting shaft with the driven gear 130 to rotate. The eccentric hammer of the vibrator 140 rotates, causing the placement plate 200 on which the vibrator 140 is installed to vibrate vertically. This ensures that the molding sand in the sand box is tightly connected during the vibration process, preventing gaps or voids that could cause gaps in the cast coupler. At the same time, the adjustment mechanism 340 on the compaction assembly 300 is activated, causing the air source machine 370 to output positive pressure air. This positive pressure air enters the adjustment groove, pushing the piston 341 of the adjustment mechanism 340 installed in the adjustment groove to move vertically downward. This causes the piston rod 342 connected to the piston 341 to extend, causing the compaction plate 330 connected to the bottom of each piston rod 342 to move vertically downward. As the compaction plate 330 moves downward, it compacts and levels the vibrated molding sand, thereby improving the casting quality of the coupler casting.

[0036] The beneficial effects of this utility model are as follows:

[0037] 1. By setting a vertically vibrating component 100 at the bottom of the placement plate 200, the vertical amplitude generated by the vibrating component 100 after its start-up will vibrate and compact the molding sand in the sand box, so that the molding sand in the sand box has a dense structure without loose gaps, thereby improving the casting efficiency of the coupler casting.

[0038] Second, by setting a compaction assembly 300 with an adjustment mechanism 340 on the support frame 500, the telescopic drive 310 on the compaction assembly 300 drives the connecting plate 320 to move downward, so that the connecting plate 320 is positioned and engaged with the sand box. At the same time, the compaction plate 330, which is movably connected to the bottom of the connecting plate 320, moves downward under the positive pressure air source with different pressures output by the air source machine 370, so that the compaction plate 330 compacts the molding sand in the sand box, and compacts the molding sand at different depths in the sand box, thereby improving the casting quality of the coupler casting.

[0039] The above description is merely a preferred embodiment of this application and an explanation of the technical principles and solutions employed. Furthermore, the scope of the utility model involved in this application is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A sand box compaction device for coupler castings, characterized in that: Includes an oscillation assembly (100), which is vertically mounted on the bottom of the placement plate (200) for vertical vibration of molding sand inside the sand box; The oscillation assembly (100) includes a first rotation drive (110), a drive gear (120), a driven gear (130), an exciter (140), several springs (150), and several support rods (160). The exciter (140) is installed at the bottom of the placement plate (200), and the driven gear (130) is installed on the connecting shaft of the exciter (140). The driven gear (130) is connected to the drive gear (120) via a belt, and the drive gear (120) is fixedly connected to the output end of the first rotation drive (110). Several springs (150) and several support rods (160) are evenly arranged at the bottom of the placement plate (200) so that the first rotation drive (110) drives the placement plate (200) to generate vertical amplitude. The compaction assembly (300) includes a telescopic drive (310), a connecting plate (320), a compaction plate (330), and several adjustment mechanisms (340). The top of the connecting plate (320) is fixedly connected to the output end of the telescopic drive (310), and several adjustment slots are provided on the connecting plate (320). Each adjustment slot is equipped with a corresponding adjustment mechanism (340), and several adjustment mechanisms (340) are evenly installed on the top of the compaction plate (330) so that the several adjustment mechanisms (340) can adjust the compaction height and compaction pressure of the compaction plate (330).

2. The sand box compaction device for coupler castings according to claim 1, characterized in that: The placement plate (200) is provided with a plurality of through holes, and each of the support rods (160) passes through the through holes and is movably connected to the placement plate (200).

3. The sand box compaction device for coupler castings according to claim 1, characterized in that: The adjustment mechanism (340) includes a piston (341), a piston rod (342), and a return member (343). The piston (341) is movably installed in the adjustment groove, and the return member (343) is a metal spring (150) which is sleeved on the piston rod (342) for the return of the piston rod (342).

4. The sand box compaction device for coupler castings according to claim 1, characterized in that: Each of the regulating slots is also provided with an air inlet at the top, and each air inlet is equipped with a corresponding air inlet pipe (350). Each air inlet pipe (350) is connected to an air delivery pipe (360), and the air delivery pipe (360) is connected to an air source machine (370).

5. The sand box compaction device for coupler castings according to claim 1, characterized in that: The connecting plate (320) is also provided with a number of positioning rods (321), and the sand box is provided with a number of corresponding positioning slots, and each of the positioning rods (321) is engaged in the positioning slot.

6. The sand box compaction device for coupler castings according to claim 1, characterized in that: Several fixing plates (400) are screwed onto the placement plate (200), and the fixing plates (400) are installed on the fixing bracket by adjusting bolts.

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