Casting device of tractor brake assembly

Abstract

The invention discloses a casting device for a tractor brake assembly, which relates to the technical field of brake part casting, and comprises a base, a fixed mold and a movable mold, and further comprises a mold closing mechanism, an injection mechanism; a feeding mechanism; the bubble removing mechanism is used for removing bubbles in the molten metal before the molten metal is provided for the injection mechanism; the filtering mechanism is used for filtering oxides in the molten metal after bubbles in the molten metal are removed; according to the molten metal bubble removal device, bubble removal treatment is conducted on the molten metal in the closed state, it is guaranteed that bubbles in the molten metal are removed sufficiently, the problem that bubbles in the molten metal to be used cannot be removed sufficiently due to new bubbles generated in the continuous injection process of the molten metal is solved, the molten metal is filtered automatically, and the service life of the molten metal is prolonged. The problem that oxide in molten metal is injected into the mold to affect the forming quality of brake parts is avoided, and the effect of continuous filtering treatment on the molten metal is guaranteed by cleaning the filtered oxide.

Description

Technical Field

[0001] The present invention relates to the technical field of casting of braking components, and particularly relates to a casting device for a tractor braking assembly. Background Art

[0002] The parts in a tractor braking assembly, including a brake caliper body, a hydraulic master cylinder housing, a slave cylinder housing, an electronic parking system housing, etc., are usually made by die-casting means, that is, the smelted liquid metal is injected into a pre-prepared mold by pouring, injection, suction or other casting methods, and after cooling, it is obtained through subsequent processing means such as grinding.

[0003] When the existing casting device is in use, after the molten metal is injected into the mold, due to the presence of air bubbles in the molten metal, there will be holes of different sizes and numbers after the braking parts are formed, and further repair work needs to be done by the staff. Moreover, before the molten metal is injected into the mold, it is inevitable to come into contact with air, resulting in the formation of layered oxides in the molten metal. After the oxides are injected into the mold, it will affect the forming quality of the braking parts. Summary of the Invention

[0004] The purpose of the present invention is to provide a casting device for a tractor braking assembly to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A casting device for a tractor braking assembly, including a base, a fixed mold and a movable mold, and further including: A mold closing mechanism, which includes a first fixed seat installed on one side of the top of the base and a second fixed seat installed on the other side of the top of the base; An injection mechanism, which includes a barrel installed inside the second fixed seat and a second hydraulic cylinder installed on the outer wall of the second fixed seat away from the fixed mold; A feeding mechanism, which includes a liquid storage tank installed on the top of the second fixed seat, a heating jacket installed outside the liquid storage tank, and a liquid injection pipe installed on one side of the top of the liquid storage tank; A defoaming mechanism, which includes a partition fixed inside the liquid storage tank, a defoaming tank rotatably connected to the top of the partition, a stirring assembly installed inside the defoaming tank, and an adjusting assembly for driving the defoaming tank to rotate. The outside of the defoaming tank is rotatably connected to an annular sealing platform, and the sealing platform is fixed to the inner wall of the liquid storage tank and also fixed to the top of the partition; A filtering mechanism, which includes a defective ring fixed inside the sealing platform, a filter screen installed inside the partition, and a cleaning assembly installed on the top of the defective ring.

[0006] Further, a plurality of first hydraulic cylinders are installed inside the first fixed seat. A plurality of sliding rods are fixedly connected between the first fixed seat and the second fixed seat. The movable mold is slidably sleeved outside the plurality of sliding rods. The extending end of the first hydraulic cylinder is fixedly connected to the outer wall of the movable mold; The fixed mold is installed on the outer wall of the second fixed seat.

[0007] Further, a pressure head is installed inside the barrel. The extending end of the second hydraulic cylinder is fixedly connected to the outer wall on one side of the pressure head.

[0008] Further, the bottom end of the liquid storage tank is connected to the barrel, and the barrel is connected to the fixed mold; A bracket is installed on the top of the second fixed seat.

[0009] Further, a feed inlet is opened at the bottom on one side of the defoaming tank; A exhaust pipe is installed on one side of the top of the defoaming tank, and a one-way valve is installed on the exhaust pipe; The top of the liquid storage tank is rotatably connected with a sealing disc, and the exhaust pipe penetrates through the sealing disc.

[0010] Further, the stirring assembly includes a transmission shaft rotatably connected inside the defoaming tank, stirring blades fixedly connected to the outside of the transmission shaft, and a first motor installed on the top of the bracket; The transmission shaft penetrates through the sealing disc and is rotatably connected to the sealing disc. The top end of the transmission shaft is rotatably connected to the inner wall of the top of the bracket; Both the outside of the output shaft of the first motor and the outside of the transmission shaft are fixedly sleeved with first gears, and the two first gears are meshed with each other.

[0011] Further, the adjusting assembly includes a sleeve shaft fixedly connected to the top of the defoaming tank and a second motor installed on the top of the bracket; The sleeve shaft is sleeved outside the transmission shaft. The sleeve shaft penetrates through the sealing disc and is rotatably connected to the sealing disc; Both the outside of the output shaft of the second motor and the outside of the sleeve shaft are fixedly sleeved with second gears, and the two second gears are meshed with each other; The lower edge of the second gear is higher than the upper edge of the exhaust pipe.

[0012] Further, a notch is provided on one side of the sealing table; A discharge port is opened inside the sealing table.

[0013] Further, a socket is opened inside the incomplete ring, and the socket is adapted to the filter screen; An electric push rod is installed at the bottom of the liquid storage tank. The extending end of the electric push rod is fixedly connected to the bottom of the filter screen. Baffles can be fixedly connected to both ends of the filter screen to prevent the metal solution remaining inside the sealing platform from flowing downward through the original position of the filter screen when the filter screen moves upward.

[0014] Further, the cleaning assembly includes an arc-shaped guide rail fixedly connected to the top of the incomplete ring, a slider slidably connected inside the arc-shaped guide rail, and a scraping bar installed on the slider; A first spring is fixedly connected to the inner wall of the arc-shaped guide rail, and the other end of the first spring is fixedly connected to the outer wall of the slider; The bottom of the scraping bar abuts against the top of the incomplete ring. A guide groove is formed inside the scraping bar, and a guide block is slidably connected inside the guide groove. One end of the guide block is fixedly connected to a second spring, and the other end of the second spring is fixedly connected to the inner wall of the guide groove. The other end of the guide block extends to the outside of the scraping bar and is fixedly connected to the outer wall of the slider; An inclined surface groove is formed at one end of the scraping bar close to the defoaming tank, and a linkage groove is formed on the outer wall of the defoaming tank. The scraping bar is matched with the linkage groove; An activity groove is further formed on the inner wall of the sealing platform, which is located above the discharge port, and the scraping bar is also located inside the activity groove.

[0015] Compared with the prior art, a casting device for a tractor braking assembly provided by the present invention has the following beneficial effects: By removing bubbles from the metal liquid in a closed state, the sufficiency of bubble removal in the metal liquid is ensured, and the problem that new bubbles cannot be fully removed from the metal liquid to be used during the continuous injection of the metal liquid is avoided; After the bubbles in the metal liquid are removed, the metal liquid is automatically filtered to avoid the problem that oxides in the metal liquid are injected into the mold and affect the forming quality of the braking parts. The cleaning assembly can clean the filtered oxides, ensuring the effect of continuous filtration of the metal liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the injection mechanism and the feeding mechanism of the present invention; Figure 3It is a schematic diagram of the internal structure of the liquid storage tank of the present invention; Figure 4 It is a schematic diagram of the external structure of the sealing platform of the present invention; Figure 5 It is a schematic diagram of the structure of the filtering mechanism of the present invention; Figure 6 It is a schematic diagram of the partial structure of the cleaning component of the present invention; Figure 7 It is a schematic diagram of the internal structure of the defoaming tank of the present invention; Figure 8 It is a schematic diagram of the partial structure of the stirring component and the regulating component of the present invention.

[0018] Description of reference numerals: 1. Base; 2. Fixed mold; 3. Movable mold; 4. First fixed seat; 5. Second fixed seat; 6. First hydraulic cylinder; 7. Slide rod; 8. Barrel; 9. Second hydraulic cylinder; 10. Liquid storage tank; 11. Heating jacket; 12. Liquid injection pipe; 13. Bracket; 14. Partition; 15. Defoaming tank; 16. Feed inlet; 17. Exhaust pipe; 18. One-way valve; 19. Sealing plate; 20. Transmission shaft; 21. Stirring blade; 22. A motor; 23. A first gear; 24. A sleeve shaft; 25. A second motor; 26. A second gear; 27. A sealing platform; 28. A discharge port; 29. ​​A broken ring; 30. A filter screen; 31. A socket; 32. An electric push rod; 33. An arc guide rail; 34. A slider; 35. A scraper strip; 36. A first spring; 37. A guide groove; 38. A guide block; 39. A second spring; 40. A bevel groove; 41. A linkage groove; 42. A movable groove. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Example: See Figure 1 - Figure 8 A casting device for a tractor brake assembly includes a base 1, a fixed mold 2 and a movable mold 3. The fixed mold 2 and the movable mold 3 are both provided with a water-cooling circulation cooling mechanism for accelerating the cooling and molding of brake parts. The casting device also includes: The mold clamping mechanism is installed on the top of the base 1 and is used to drive the movable mold 3 to move. The mold clamping mechanism includes a first fixed seat 4 installed on one side of the top of the base 1 and a second fixed seat 5 installed on the other side of the top of the base 1. A plurality of first hydraulic cylinders 6 are installed inside the first fixed seat 4. A plurality of slide rods 7 are fixedly connected between the first fixed seat 4 and the second fixed seat 5. A demolding mechanism can also be provided on the movable mold 3 to eject the formed brake parts. The movable mold 3 is slidably sleeved outside the plurality of slide rods 7. The extending end of the first hydraulic cylinder 6 is fixedly connected to the outer wall of the movable mold 3. The fixed mold 2 is installed on the outer wall of the second fixed seat 5. By controlling the first hydraulic cylinder 6 to extend, the movable mold 3 is driven to slide to the right along the outside of the slide rod 7 until the movable mold 3 is closed with the fixed mold 2. After the brake parts are formed, by controlling the first hydraulic cylinder 6 to shorten, the movable mold 3 is driven to move to the left along the outside of the slide rod 7, so that the movable mold 3 is separated from the fixed mold 2, facilitating the demolding of the formed brake parts.

[0021] The injection mechanism is connected to the fixed mold 2 and is used to inject metal into the fixed mold 2 and the movable mold 3 after mold clamping. The injection mechanism includes a barrel 8 installed inside the second fixed seat 5 and a second hydraulic cylinder 9 installed on the outer wall of the second fixed seat 5 away from the fixed mold 2. A pressure head is installed inside the barrel 8. The extending end of the second hydraulic cylinder 9 is fixedly connected to the outer wall of one side of the pressure head. After the metal liquid processed by the liquid storage tank 10 enters the inside of the barrel 8, by controlling the second hydraulic cylinder 9 to extend, the pressure head is driven to move left along the inner wall of the barrel 8, and the metal liquid inside the barrel 8 is injected into the fixed mold 2 and the movable mold 3.

[0022] The feeding mechanism is connected to the injection mechanism and is used to supply metal liquid to the injection mechanism. The feeding mechanism includes a liquid storage tank 10 installed on the top of the second fixed seat 5, a heating jacket 11 installed outside the liquid storage tank 10, and a liquid injection pipe 12 installed on one side of the top of the liquid storage tank 10. The heating jacket 11 is used to heat the inside of the liquid storage tank 10 to reduce the loss of the temperature of the metal liquid. The bottom end of the liquid storage tank 10 is connected to the barrel 8, and the barrel 8 is connected to the fixed mold 2. A bracket 13 is installed on the top of the second fixed seat 5. The molten metal liquid is introduced into the liquid storage tank 10 through the liquid injection pipe 12. The metal liquid inside the liquid storage tank 10 is discharged into the barrel 8 after defoaming and filtering treatment.

[0023] Defoaming mechanism, which is connected to the feeding mechanism and is used to remove air bubbles in the molten metal before providing the molten metal to the injection mechanism. The defoaming mechanism includes a partition 14 fixedly connected inside the liquid storage tank 10, a defoaming tank 15 rotatably connected to the top of the partition 14, a stirring assembly installed inside the defoaming tank 15, and an adjusting assembly for driving the defoaming tank 15 to rotate; a feed port 16 is opened at the bottom of one side of the defoaming tank 15; a exhaust pipe 17 is installed on one side of the top of the defoaming tank 15, and a check valve 18 is installed on the exhaust pipe 17; a sealing disc 19 is rotatably connected to the top of the liquid storage tank 10, and the exhaust pipe 17 passes through the sealing disc 19. The stirring assembly includes a transmission shaft 20 rotatably connected inside the defoaming tank 15, stirring blades 21 fixedly connected to the outside of the transmission shaft 20, and a first motor 22 installed on the top of the support 13; the transmission shaft 20 passes through the sealing disc 19 and is rotatably connected to the sealing disc 19, and the top end of the transmission shaft 20 is rotatably connected to the inner wall of the top of the support 13; first gears 23 are fixedly sleeved on the outside of the output shaft of the first motor 22 and the outside of the transmission shaft 20 respectively, and the two first gears 23 are meshed with each other. The adjusting assembly includes a sleeve shaft 24 fixedly connected to the top of the defoaming tank 15 and a second motor 25 installed on the top of the support 13; the sleeve shaft 24 is sleeved on the outside of the transmission shaft 20, the sleeve shaft 24 passes through the sealing disc 19 and is rotatably connected to the sealing disc 19; second gears 26 are fixedly sleeved on the outside of the output shaft of the second motor 25 and the outside of the sleeve shaft 24 respectively, and the two second gears 26 are meshed with each other; the lower edge of the second gear 26 is higher than the upper edge of the exhaust pipe 17. The outside of the defoaming tank 15 is rotatably connected with an annular sealing platform 27, the sealing platform 27 is fixedly connected to the inner wall of the liquid storage tank 10 and is also fixedly connected to the top of the partition 14; there is a notch on one side of the sealing platform 27; a discharge port 28 is opened inside the sealing platform 27; The molten metal is injected into the interior of the liquid storage tank 10 through the liquid injection pipe 12 to maintain a full material state. By controlling the second motor 25 to drive the second gear 26 outside its output shaft to rotate, through the meshing effect between the two second gears 26, the sleeve shaft 24 is driven to rotate, and then the defoaming tank 15 is driven to rotate. When the feed port 16 on the defoaming tank 15 rotates to the notch position, the molten metal inside the liquid storage tank 10 enters the interior of the defoaming tank 10 through the feed port 16. When the feed port 16 on the defoaming tank 15 rotates to the inner side of the sealing table 27, the sealing table 27 seals the feed port 16, so that no more molten metal enters the interior of the defoaming tank 15. By controlling the first motor 22 to drive the first gear 23 outside its output shaft to rotate, through the meshing effect between the two first gears 23, the transmission shaft 20 is driven to rotate, and then the stirring blades 21 are driven to rotate synchronously, stirring the molten metal sealed inside the defoaming tank 15, so that the bubbles in this part of the molten metal are discharged upward, and the bubbles are discharged through the exhaust pipe 17. By performing bubble removal treatment on the molten metal in the closed state, the sufficiency of bubble removal in the molten metal is ensured, and the problem that new bubbles cannot be fully removed from the molten metal to be used during the continuous injection of the molten metal is avoided. When the feed port 16 rotates to the discharge port 28 position, the molten metal that has been defoamed inside the defoaming tank 15 is discharged. After the molten metal tray inside the defoaming tank 15 is discharged, as the defoaming tank 15 continues to rotate, the feed port 16 is sealed again by the sealing table 27. When the feed port 16 rotates to the notch position again, the molten metal solution inside the liquid storage tank 10 enters the interior of the defoaming tank 15 through the feed port 16 again. In this cycle, the molten metal is repeatedly introduced into the defoaming tank 15, and after being stirred and defoamed inside the defoaming tank 15, it is discharged through the discharge port 28; Among them, when the defoaming tank 15 rotates, the sealing disk 19 is driven to rotate synchronously through the exhaust pipe 17. During this process, the exhaust pipe 17 will not interfere with the movement of the liquid storage tank 10, the second gear 26, and the liquid injection pipe 12; the rotation directions of the transmission shaft 20 and the sleeve shaft 24 are opposite; the setting of the one-way valve 18 enables the gas inside the defoaming tank 15 to be discharged through the exhaust pipe 17, and the external gas cannot enter the interior of the defoaming tank 15 through the exhaust pipe 17.

[0024] Filter mechanism, which is respectively connected to the feeding mechanism and the defoaming mechanism, and is used to filter the oxides in the molten metal after removing the bubbles in the molten metal. The filter mechanism includes an incomplete ring 29 fixed inside the sealing table 27, a filter screen 30 installed inside the partition plate 14, and a cleaning component installed on the top of the incomplete ring 29; a socket 31 is opened inside the incomplete ring 29, and the socket 31 is adapted to the filter screen 30; a seal door that is convenient for disassembly and assembly can be arranged at the position of the outer part of the liquid storage tank 10 close to the filter screen 30 for cleaning the oxides scraped from the filter screen 30; an electric push rod 32 is installed at the bottom of the liquid storage tank 10, and the extending end of the electric push rod 32 is fixedly connected to the bottom of the filter screen 30. Baffles can be fixedly connected to both ends of the filter screen 30 to prevent the molten metal remaining inside the sealing table 27 from flowing downward through the original position of the filter screen 30 when the filter screen 30 moves upward. The cleaning component includes an arc-shaped guide rail 33 fixed on the top of the incomplete ring 29, a slider 34 slidably connected inside the arc-shaped guide rail 33, and a scraping strip 35 installed on the slider 34; a first spring 36 is fixed on the inner wall of the arc-shaped guide rail 33, and the other end of the first spring 36 is fixedly connected to the outer wall of the slider 34; the bottom of the scraping strip 35 abuts against the top of the incomplete ring 29. A guide groove 37 is opened inside the scraping strip 35, a guide block 38 is slidably connected inside the guide groove 37, one end of the guide block 38 is fixedly connected to a second spring 39, the other end of the second spring 39 is fixedly connected to the inner wall of the guide groove 37, and the other end of the guide block 38 extends to the outside of the scraping strip 35 and is fixedly connected to the outer wall of the slider 34; an inclined surface groove 40 is opened at one end of the scraping strip 35 close to the defoaming tank 15, a linkage groove 41 is opened on the outer wall of the defoaming tank 15, and the scraping strip 35 is matched with the linkage groove 41; a movable groove 42 is also opened on the inner wall of the sealing table 27, the movable groove 42 is located above the discharge port 28, and the scraping strip 35 is also located inside the movable groove 42; After the degassed molten metal is discharged through the discharge port 28, it is discharged to the top of the partition plate 14. The molten metal is filtered through the filter screen 30. The molten metal after being processed by the filter screen 30 is discharged into the interior of the barrel 8. Then, the electric push rod 32 is controlled to extend, driving the filter screen 30 to move upward and enter the interior of the socket 31, so that the upper edge of the filter screen 30 is at the same horizontal height as the upper edge of the incomplete ring 29. At the same time, as the degassing tank 15 rotates, when one end of the scraping strip 35 aligns with the linkage groove 41 on the outer wall of the degassing tank 15, driven by the rebounding force of the second spring 39, one end of the scraping strip 35 is driven to insert into the interior of the linkage groove 41. Then, when the degassing tank 15 rotates, the scraping strip 35 is driven to move along the top of the filter screen 30, driving the slider 34 to slide synchronously along the inner wall of the arc-shaped guide rail 33 through the guide block 38, and the first spring 36 is stretched accordingly. During this process, the scraping strip 35 scrapes off the oxides filtered out at the top of the filter screen 30. And when the inclined surface groove 40 on the scraping strip 35 abuts against the inner wall of the movable groove 42 near the notch, the scraping strip 35 automatically moves towards the arc-shaped guide rail 33, causing one end of the scraping strip 35 to disengage from the interior of the linkage groove 41, and then separating from the degassing tank 15. At this time, driven by the resilience of the first spring 36, the scraping strip 35 is reset, and then the electric push rod 32 is controlled to drive the filter screen 30 to move downward and reset.

[0025] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. Based on the technical principle of this design, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described clearly. However, on the premise that those skilled in the art understand the principle of the above-mentioned invention, the specific details of its power mechanism, power supply system, and control system can be clearly known. The control method of the application document is automatically controlled through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art. The above only describes some exemplary embodiments of the present invention by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above-mentioned drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A casting device for a tractor braking assembly, comprising a base (1), a fixed mold (2) and a movable mold (3), characterized in that, It further includes: A mold clamping mechanism, which includes a first fixed seat (4) installed on one side of the top of the base (1) and a second fixed seat (5) installed on the other side of the top of the base (1); An injection mechanism, which includes a barrel (8) installed inside the second fixed seat (5) and a second hydraulic cylinder (9) installed on the outer wall of the second fixed seat (5) away from the fixed mold (2); A feeding mechanism, which includes a liquid storage tank (10) installed on the top of the second fixed seat (5), a heating sleeve (11) installed outside the liquid storage tank (10), and a liquid injection pipe (12) installed on one side of the top of the liquid storage tank (10); A defoaming mechanism, which includes a partition plate (14) fixedly connected inside the liquid storage tank (10), a defoaming tank (15) rotatably connected to the top of the partition plate (14), a stirring assembly installed inside the defoaming tank (15), and an adjusting assembly for driving the defoaming tank (15) to rotate. An annular sealing table (27) is rotatably connected to the outside of the defoaming tank (15), and the sealing table (27) is fixedly connected to the inner wall of the liquid storage tank (10) and also fixedly connected to the top of the partition plate (14); A filtering mechanism, which includes a defective ring (29) fixedly connected inside the sealing table (27), a filter screen (30) installed inside the partition plate (14), and a cleaning assembly installed on the top of the defective ring (29).

2. The casting device of a tractor braking assembly according to claim 1, characterized in that, A plurality of first hydraulic cylinders (6) are installed inside the first fixed seat (4). A plurality of sliding rods (7) are fixedly connected between the first fixed seat (4) and the second fixed seat (5). The movable mold (3) is slidably sleeved outside the plurality of sliding rods (7). The extending end of the first hydraulic cylinder (6) is fixedly connected to the outer wall of the movable mold (3); The fixed mold (2) is installed on the outer wall of the second fixed seat (5).

3. The casting device of a tractor braking assembly according to claim 2, characterized in that, A pressure head is installed inside the barrel (8). The extending end of the second hydraulic cylinder (9) is fixedly connected to the outer wall of one side of the pressure head.

4. A casting device for a tractor braking assembly according to claim 3, characterized in that, The bottom end of the liquid storage tank (10) is connected to the barrel (8), and the barrel (8) is connected to the fixed mold (2); A bracket (13) is installed on the top of the second fixed seat (5).

5. A casting device for a tractor braking assembly according to claim 4, characterized in that, A feed inlet (16) is opened at the bottom of one side of the defoaming tank (15); An exhaust pipe (17) is installed on one side of the top of the defoaming tank (15), and a one-way valve (18) is installed on the exhaust pipe (17); A sealing disc (19) is rotatably connected to the top of the liquid storage tank (10), and the exhaust pipe (17) passes through the sealing disc (19).

6. The casting device of a tractor braking assembly according to claim 5, characterized in that, The stirring assembly includes a transmission shaft (20) rotatably connected inside the defoaming tank (15), stirring blades (21) fixedly connected to the outside of the transmission shaft (20), and a first motor (22) installed on the top of the bracket (13); The transmission shaft (20) passes through the sealing disc (19) and is rotatably connected to the sealing disc (19). The top end of the transmission shaft (20) is rotatably connected to the inner wall of the top of the bracket (13); First gears (23) are fixedly sleeved on the outside of the output shaft of the first motor (22) and the outside of the transmission shaft (20), and the two first gears (23) are meshed with each other.

7. The casting device for a tractor braking assembly according to claim 6, characterized in that, The adjusting assembly includes a sleeve shaft (24) fixedly connected to the top of the defoaming tank (15) and a second motor (25) installed on the top of the bracket (13); The sleeve shaft (24) is sleeved outside the transmission shaft (20), the sleeve shaft (24) penetrates through the sealing disc (19) and is rotatably connected to the sealing disc (19); Both the outside of the output shaft of the second motor (25) and the outside of the sleeve shaft (24) are fixedly sleeved with second gears (26), and the two second gears (26) are meshed with each other; The lower edge of the second gear (26) is higher than the upper edge of the exhaust pipe (17).

8. A casting device for a tractor braking assembly according to claim 7, characterized in that, One side of the sealing table (27) is provided with a notch; A discharge port (28) is opened inside the sealing table (27).

9. The casting device for a tractor braking assembly according to claim 8, characterized in that, A socket (31) is opened inside the incomplete ring (29), and the socket (31) is adapted to the filter screen (30); An electric push rod (32) is installed at the bottom of the liquid storage tank (10), and the extending end of the electric push rod (32) is fixedly connected to the bottom of the filter screen (30).

10. A casting device for a tractor braking assembly according to claim 9, characterized in that, The cleaning assembly includes an arc-shaped guide rail (33) fixedly connected to the top of the incomplete ring (29), a slider (34) slidably connected inside the arc-shaped guide rail (33), and a scraping strip (35) installed on the slider (34); A first spring (36) is fixedly connected to the inner wall of the arc-shaped guide rail (33), and the other end of the first spring (36) is fixedly connected to the outer wall of the slider (34); The bottom of the scraping strip (35) abuts against the top of the incomplete ring (29). A guide groove (37) is opened inside the scraping strip (35). A guide block (38) is slidably connected inside the guide groove (37). One end of the guide block (38) is fixedly connected to a second spring (39), and the other end of the second spring (39) is fixedly connected to the inner wall of the guide groove (37). The other end of the guide block (38) extends outside the scraping strip (35) and is fixedly connected to the outer wall of the slider (34); One end of the scraping strip (35) close to the defoaming tank (15) is provided with an inclined surface groove (40), and a linkage groove (41) is opened on the outer wall of the defoaming tank (15). The scraping strip (35) is matched with the linkage groove (41); An activity groove (42) is further opened on the inner wall of the sealing table (27). The activity groove (42) is located above the discharge port (28), and the scraping strip (35) is also located inside the activity groove (42).

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