CN120243871A - A casting device for tractor brake assembly - Google Patents

Abstract

The invention discloses a casting device of a tractor brake assembly, which relates to the technical field of casting of brake parts and comprises a base, a fixed die, a movable die, a die clamping mechanism, an injection mechanism, a feeding mechanism, a bubble removing mechanism, a filtering mechanism and a filtering mechanism, wherein the bubble removing mechanism is used for removing bubbles in molten metal before the molten metal is supplied to the injection mechanism, the filtering mechanism is used for filtering oxides in the molten metal after the bubbles in the molten metal are removed, the bubble removing sufficiency in the molten metal is ensured by carrying out bubble removing treatment on the molten metal in a closed state, the problem that bubbles in the molten metal to be used cannot be sufficiently removed due to new bubbles generated in the continuous injection process of the molten metal is avoided, the problem that the forming quality of the brake parts is influenced by the injection of the oxides in the molten metal into the die is avoided by carrying out filtering treatment automatically, and the continuous filtering treatment effect of the molten metal is ensured by cleaning the filtered oxides.

Description

Casting device of tractor brake assembly

Technical Field

The invention relates to the technical field of casting of brake parts, in particular to a casting device of a tractor brake assembly.

Background

The parts in the tractor brake assembly comprise a brake caliper body, a hydraulic main cylinder shell, a slave cylinder shell, an electronic parking system shell and the like which are usually manufactured by adopting a die casting method, namely, smelted liquid metal is poured into a casting mould prepared in advance by casting, injection, suction or other casting methods, and the parts are obtained after cooling, polishing and other subsequent processing methods.

When the existing casting device is used, after molten metal is injected into a die, bubbles are contained in the molten metal, so that holes with different sizes and different numbers exist after the brake part is molded, further repairing work is needed by workers, the molten metal is inevitably contacted with air before being injected into the die, layered oxides are formed in the molten metal, and the molding quality of the brake part is affected after the oxides are injected into the die.

Disclosure of Invention

The object of the present invention is to provide a casting device for a tractor brake assembly that solves the above-mentioned drawbacks of the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme that the casting device of the tractor brake assembly comprises a base, a fixed die and a movable die, and further comprises:

The mold clamping mechanism comprises a first fixed seat arranged on one side of the top of the base and a second fixed seat arranged on the other side of the top of the base;

the injection mechanism comprises a charging barrel arranged in the second fixing seat and a second hydraulic cylinder arranged on the outer wall of one side of the second fixing seat far away from the fixed die;

the feeding mechanism comprises a liquid storage tank arranged at the top of the second fixing seat, a heating sleeve arranged outside the liquid storage tank and a liquid injection pipe arranged at one side of the top of the liquid storage tank;

The foam removing mechanism comprises a partition board fixedly connected inside the liquid storage tank, a foam removing tank rotationally connected to the top of the partition board, a stirring assembly arranged inside the foam removing tank and an adjusting assembly used for driving the foam removing tank to rotate, wherein a sealing table with an annular structure is rotationally connected to the outer part of the foam removing tank, and the sealing table is fixedly connected to the inner wall of the liquid storage tank and is also fixedly connected to the top of the partition board;

the filtering mechanism comprises a incomplete ring fixedly connected inside the sealing table, a filter screen arranged inside the partition plate and a cleaning assembly arranged at the top of the incomplete ring.

Further, a plurality of first hydraulic cylinders are arranged in the first fixing seat, a plurality of sliding rods are fixedly connected between the first fixing seat and the second fixing seat, the movable die is sleeved outside the sliding rods in a sliding manner, and the extension ends of the first hydraulic cylinders are fixedly connected with the outer wall of the movable die;

the fixed mould is arranged on the outer wall of the second fixing seat.

Further, a pressing head is arranged in the charging barrel, and the extension end of the second hydraulic cylinder is fixedly connected with the outer wall of one side of the pressing head.

Further, the bottom end of the liquid storage tank is connected with a charging barrel, and the charging barrel is connected with a fixed die;

And a bracket is arranged at the top of the second fixing seat.

Further, a feeding hole is formed in the bottom of one side of the defoaming tank;

An exhaust pipe is arranged at one side of the top of the defoaming tank, and a one-way valve is arranged on the exhaust pipe;

the top of liquid storage pot rotates and is connected with the sealing disk, the blast pipe runs through the sealing disk setting.

Further, the stirring assembly comprises a transmission shaft rotatably connected to the inside of the defoaming tank, stirring blades fixedly connected to the outside of the transmission shaft and a first motor arranged at the top of the bracket;

The transmission shaft penetrates through the sealing disc, is rotationally connected with the sealing disc, and the top end of the transmission shaft is rotationally connected with the inner wall of the top of the bracket;

The outside of first motor output shaft and the outside of transmission shaft are all fixed the cup joint first gear, two mesh mutually between the first gear.

Further, the adjusting component comprises a sleeve shaft fixedly connected to the top of the defoaming tank and a second motor arranged on the top of the bracket;

The sleeve shaft is sleeved outside the transmission shaft, penetrates through the sealing disc and is rotationally connected with the sealing disc;

The outer part of the output shaft of the second motor and the outer part of the sleeve shaft are fixedly sleeved with second gears, and the two second gears are meshed;

the lower edge of the second gear is higher than the upper edge of the exhaust pipe.

Further, a notch is formed in one side of the sealing table;

And a discharge hole is formed in the inner side of the sealing table.

Further, a socket is formed in the incomplete ring, and the socket is matched with the filter screen;

The bottom of the liquid storage tank is provided with an electric push rod, the extension end of the electric push rod is fixedly connected with the bottom of the filter screen, and the two ends of the filter screen can be fixedly connected with baffle plates for preventing residual metal solution in the sealing platform from flowing downwards through the position of the original filter screen when the filter screen moves upwards.

Further, the cleaning component comprises an arc-shaped guide rail fixedly connected to the top of the incomplete ring, a sliding block slidingly connected to the inside of the arc-shaped guide rail and a scraping strip arranged on the sliding block;

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 with the outer wall of the sliding block;

The bottom of the scraping strip is abutted with the top of the incomplete ring, a guide groove is formed in the scraping strip, a guide block is slidably connected in the guide groove, a second spring is fixedly connected to one end of the guide block, the other end of the second spring is fixedly connected with the inner wall of the guide groove, and the other end of the guide block extends to the outside of the scraping strip and is fixedly connected with the outer wall of the sliding block;

an inclined plane groove is formed in one end, close to the foam removing tank, of the scraping strip, a linkage groove is formed in the outer wall of the foam removing tank, and the scraping strip is matched with the linkage groove;

the inner wall of the sealing table is also provided with a movable groove, the movable groove is positioned above the discharge hole, and the scraping strip is also positioned in the movable groove.

Compared with the prior art, the casting device of the tractor brake assembly provided by the invention has the following beneficial effects:

The bubble removal treatment is carried out on the molten metal in a closed state, so that the sufficiency of bubble removal in the molten metal is ensured, and the problem that new bubbles generated in the continuous injection process of the molten metal cannot sufficiently remove the bubbles in the molten metal to be used is avoided;

After the bubbles in the molten metal are removed, the molten metal is automatically filtered, the problem that the forming quality of the brake part is affected due to the fact that oxides in the molten metal are injected into the die is avoided, the filtered oxides can be cleaned through the cleaning assembly, and the effect of continuous filtering treatment of the molten metal is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for those skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the injection mechanism and the feeding mechanism of the present invention;

FIG. 3 is a schematic diagram of the internal structure of the liquid storage tank of the present invention;

FIG. 4 is a schematic view of the external structure of the sealing table of the present invention;

FIG. 5 is a schematic view of a filter mechanism according to the present invention;

FIG. 6 is a schematic view of a cleaning assembly according to the present invention;

FIG. 7 is a schematic view of the internal structure of the de-bubbling tank according to the present invention;

fig. 8 is a schematic view showing a partial structure of the stirring assembly and the adjusting assembly of the present invention.

Reference numerals illustrate:

1. The device comprises a base, a fixed die, 3, a movable die, 4, a first fixing seat, 5, a second fixing seat, 6, a first hydraulic cylinder, 7, a sliding rod, 8, a charging barrel, 9, a second hydraulic cylinder, 10, a liquid storage tank, 11, a heating sleeve, 12, a liquid filling pipe, 13, a bracket, 14, a partition plate, 15, a foam removing tank, 16, a feeding hole, 17, an exhaust pipe, 18, a one-way valve, 19, a sealing disc, 20, a transmission shaft, 21, a stirring blade, 22, a first motor, 23, a first gear, 24, a sleeve shaft, 25, a second motor, 26, a second gear, 27, a sealing table, 28, a discharging hole, 29, a broken ring, 30, a filter screen, 31, a socket, 32, an electric push rod, 33, an arc-shaped guide rail, 34, a sliding block, 35, a scraping bar, 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 and a movable groove.

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

Referring to fig. 1-8, a casting device of a tractor brake assembly includes a base 1, a fixed mold 2, and a movable mold 3, wherein water cooling circulation cooling mechanisms are respectively arranged in the fixed mold 2 and the movable mold 3 for accelerating cooling and forming of brake parts, and the casting device further includes:

The die assembly mechanism is arranged at the top of the base 1 and used for driving the movable die 3 to move, and comprises a first fixed seat 4 arranged at one side of the top of the base 1 and a second fixed seat 5 arranged at the other side of the top of the base 1, wherein a plurality of first hydraulic cylinders 6 are arranged in 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, and a demoulding mechanism is arranged on the movable die 3 and used for ejecting a formed braking part;

After the braking part is formed, the first hydraulic cylinder 6 is controlled to shorten, the movable mould 3 is driven to move leftwards along the outer part of the slide rod 7, and the movable mould 3 is separated from the fixed mould 2, so that the formed braking part is conveniently demoulded.

The injection mechanism is connected with the fixed die 2 and is used for hydraulically pressing metal into the fixed die 2 and the movable die 3 after die assembly, and comprises a charging barrel 8 arranged in the second fixed seat 5 and a second hydraulic cylinder 9 arranged on the outer wall of one side of the second fixed seat 5 far away from the fixed die 2, wherein a pressure head is arranged in the charging barrel 8, and the extension end of the second hydraulic cylinder 9 is fixedly connected with the outer wall of one side of the pressure head;

After the molten metal treated by the liquid storage tank 10 enters the inside of the charging barrel 8, the second hydraulic cylinder 9 is controlled to extend, so that the pressure head is driven to move leftwards along the inner wall of the charging barrel 8, and the molten metal in the charging barrel 8 is pressed into the fixed die 2 and the movable die 3.

The feeding mechanism is connected with the injection mechanism and is used for providing molten metal for the injection mechanism, and comprises a liquid storage tank 10 arranged at the top of the second fixed seat 5, a heating sleeve 11 arranged outside the liquid storage tank 10 and a liquid injection pipe 12 arranged at one side of the top of the liquid storage tank 10, wherein the heating sleeve 11 is used for heating the inside of the liquid storage tank 10 to reduce the loss of the temperature of the molten metal;

Molten metal is introduced into the reservoir 10 through the pouring tube 12, and the molten metal in the reservoir 10 is discharged into the cylinder 8 after the bubbling and filtering treatment.

The foam removing mechanism is connected with the feeding mechanism and is used for removing bubbles in the molten metal before the molten metal is supplied to the injection mechanism, and comprises a baffle plate 14 fixedly connected inside the liquid storage tank 10, a foam removing tank 15 rotatably connected to the top of the baffle plate 14, a stirring component arranged inside the foam removing tank 15 and an adjusting component used for driving the foam removing tank 15 to rotate; the bottom of one side of the de-bubbling tank 15 is provided with a feed inlet 16, one side of the top of the de-bubbling tank 15 is provided with an exhaust pipe 17, a check valve 18 is arranged on the exhaust pipe 17, the top of the liquid storage tank 10 is rotationally connected with a sealing disc 19, the exhaust pipe 17 penetrates through the sealing disc 19, a stirring assembly comprises a transmission shaft 20 rotationally connected inside the de-bubbling tank 15, stirring blades 21 fixedly connected outside the transmission shaft 20 and a first motor 22 arranged at the top of a bracket 13, the transmission shaft 20 penetrates through the sealing disc 19 and is rotationally connected with the sealing disc 19, the top end of the transmission shaft 20 is rotationally connected with the inner wall of the top of the bracket 13, the outer part of the output shaft 22 and the outer part of the transmission shaft 20 are fixedly sleeved with a first gear 23, two first gears 24 are fixedly sleeved on the outer part of the output shaft of the first motor 22 and the outer part of the transmission shaft 20, two first gears 25 are fixedly connected with the outer part of the second gear 26 along the outer part of the sealing disc 19, two first gears 23 are meshed with each other, an adjusting assembly comprises a sleeve shaft 24 fixedly connected to the top of the de-bubbling tank 15 and a second motor 25 arranged at the top of the bracket 13, the sleeve shaft 24 is sleeved on the outer part of the sealing disc 20, the sleeve shaft 24 is fixedly connected with the outer part of the sealing disc 27 along the sealing table 27 of the sealing table is rotationally connected with the sealing table of the upper part of the sealing tank 10 and the sealing table 15, the sealing device is also fixedly connected to the top of the partition plate 14, one side of the sealing table 27 is provided with a notch, and the inner side of the sealing table 27 is provided with a discharge hole 28;

The liquid metal is injected into the liquid storage tank 10 through the liquid injection pipe 12, the liquid metal is kept in a full state, the second motor 25 is controlled to drive the second gear 26 outside the output shaft of the liquid metal to rotate, the sleeve shaft 24 is driven to rotate through the meshing action between the two second gears 26, the bubble removal tank 15 is driven to rotate along with the rotation, when the feed inlet 16 on the bubble removal tank 15 rotates to a notch position, the liquid metal in the liquid storage tank 10 enters the liquid storage tank 10 through the feed inlet 16, when the feed inlet 16 on the bubble removal tank 15 rotates to the inner side of the sealing table 27, the sealing table 27 seals the feed inlet 16, no liquid metal enters the bubble removal tank 15 again, the first motor 22 is controlled to drive the first gear 23 outside the output shaft of the liquid metal to rotate, the transmission shaft 20 is driven to rotate through the meshing action between the two first gears 23, and then each stirring blade 21 is driven to synchronously rotate, the metal liquid in the bubble removing tank 15 is stirred to be sealed, so that the bubbles in the metal liquid are upwards discharged, the bubbles are discharged through the exhaust pipe 17, the bubble removing sufficiency in the metal liquid is ensured by carrying out bubble removing treatment on the metal liquid in a sealed state, the problem that the bubbles in the metal liquid to be used cannot be sufficiently removed due to the generation of new bubbles in the continuous injection process of the metal liquid is avoided, when the feeding hole 16 rotates to the position of the discharging hole 28, the metal liquid in the bubble removing tank 15 after the bubble removing treatment is discharged, after the metal liquid disc in the bubble removing tank 15 is discharged, the feeding hole 16 is sealed by the sealing table 27 again along with the continuous rotation of the bubble removing tank 15, when the feeding hole 16 rotates to the notch position again, the metal liquid in the liquid storage tank 10 enters the bubble removing tank 15 again through the feeding hole 16, so that the circulation is repeated to guide the metal liquid into the bubble removing tank 15 again, the foam is removed by stirring in the foam removing tank 15 and then discharged through a discharge port 28;

When the de-bubbling tank 15 rotates, the sealing disc 19 is driven to synchronously rotate through the exhaust pipe 17, in the process, the exhaust pipe 17 does 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, and the one-way valve 18 is arranged to enable gas in the de-bubbling tank 15 to be discharged through the exhaust pipe 17, so that external gas cannot enter the de-bubbling tank 15 through the exhaust pipe 17.

The filtering mechanism is respectively connected with the feeding mechanism and the bubble removing mechanism and is used for filtering the oxide in the molten metal after removing bubbles in the molten metal, and comprises a incomplete ring 29 fixedly connected inside the sealing table 27, a filter screen 30 arranged inside the partition plate 14 and a cleaning assembly arranged at the top of the incomplete ring 29; the inside of the incomplete ring 29 is provided with a socket 31 which is matched with the filter screen 30, a sealing door which is convenient to detach and mount is arranged at the outer part of the liquid storage tank 10 and is close to the filter screen 30, an electric push rod 32 is arranged at the bottom of the liquid storage tank 10 and is used for cleaning oxide scraped from the filter screen 30, the extension end of the electric push rod 32 is fixedly connected with the bottom of the filter screen 30, two ends of the filter screen 30 can be fixedly connected with a baffle plate which is used for preventing the residual metal liquid in the sealing table 27 from flowing downwards through the position of the original filter screen 30 when the filter screen 30 moves upwards, the cleaning component comprises an arc-shaped guide rail 33 fixedly connected with the top of the incomplete ring 29, a sliding block 34 which is in sliding connection with the inside of the arc-shaped guide rail 34 and a scraping strip 35 which is arranged on the sliding block 34, a first spring 36 is fixedly connected on the inner wall of the arc-shaped guide rail, a guide groove 37 is arranged at the bottom of the scraping strip 35 and is fixedly connected with the top of the incomplete ring 29, a guide block 38 is fixedly connected with the inside of the guide groove 37, a guide block 38 is fixedly connected with one end of the guide block 38, a foam is fixedly connected with the other end of the guide block 38, and a foam is fixedly connected with the other end of the scraping strip 35, which is fixedly connected with the guide groove 15 on the outer wall of the guide groove is arranged on the sliding block, which is close to the guide groove and the guide groove 15, and the other end of the guide block is fixedly connected with the guide groove is arranged on the guide groove is 15, the scraping strip 35 is matched with the linkage groove 41, a movable groove 42 is also formed on the inner wall of the sealing table 27, the movable groove 42 is positioned above the discharge hole 28, and the scraping strip 35 is also positioned in the movable groove 42;

After the molten metal subjected to bubble removal treatment is discharged through the discharge port 28 and then discharged to the top of the partition plate 14, the molten metal is filtered through the filter screen 30, the molten metal subjected to bubble removal treatment is discharged into the inside of the charging barrel 8 through the filter screen 30, the electric push rod 32 is controlled to extend, the filter screen 30 is driven to move upwards, the molten metal enters the inside of the socket 31, the upper edge of the filter screen 30 and the upper edge of the incomplete ring 29 are at the same horizontal height, simultaneously, along with the rotation of the bubble removal tank 15, when one end of the scraping strip 35 is aligned with the linkage groove 41 on the outer wall of the bubble removal tank 15, the elastic force of the second spring 39 drives one end of the scraping strip 35 to be inserted into the linkage groove 41, further, when the bubble removal tank 15 rotates, the scraping strip 35 is driven to move along the top of the filter screen 30, the slide 34 is driven by the guide block 38 to synchronously slide along the inner wall of the arc guide rail 33, the first spring 36 is stretched, in the process, the oxide filtered from the top of the filter screen 30 is scraped off by the scraping strip 35, and when the inclined surface 40 on the scraping strip 35 is automatically contacted with the inner wall of the movable groove 42 near one end of the gap, the inner wall of the arc guide rail 35 is automatically contacted with the inner wall of the arc guide rail 35, the scraping strip 35 is driven by the elastic force of the scraping strip 35 to move towards the inner end of the arc guide rail 33, and then the elastic force is controlled to move the scraping strip 35 back to move along the arc guide groove 33, and then the elastic force is controlled to move back to move the scraping strip 35, and then moves back to be separated by the elastic rod 32.

It should be noted that the device structure and the drawings of the present invention mainly describe the principle of the present invention, in terms of the technology of the design principle, the arrangement of the power mechanism, the power supply system, the control system, etc. of the device is not completely described, and the specific power mechanism, the power supply system, and the control system of the present invention can be clearly known to those skilled in the art, and the control mode of the present invention is automatically controlled by the controller, and the control circuit of the controller can be implemented by simple programming of those skilled in the art, so that it is needless to say that some exemplary embodiments of the present invention are described above by way of illustration only, and it is needless to say that, for those skilled in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims (10)

1. The casting device of the tractor brake assembly comprises a base (1), a fixed die (2) and a movable die (3), and is characterized by further comprising:

the mold clamping mechanism comprises a first fixing seat (4) arranged on one side of the top of the base (1) and a second fixing seat (5) arranged on the other side of the top of the base (1);

The injection mechanism comprises a charging barrel (8) arranged in the second fixed seat (5) and a second hydraulic cylinder (9) arranged on the outer wall of one side of the second fixed seat (5) far away from the fixed die (2);

The feeding mechanism comprises a liquid storage tank (10) arranged at the top of the second fixing seat (5), a heating sleeve (11) arranged outside the liquid storage tank (10) and a liquid injection pipe (12) arranged at one side of the top of the liquid storage tank (10);

The foam removing mechanism comprises a baffle plate (14) fixedly connected to the inside of the liquid storage tank (10), a foam removing tank (15) rotationally connected to the top of the baffle plate (14), a stirring assembly arranged in the foam removing tank (15) and an adjusting assembly used for driving the foam removing tank (15) to rotate, wherein a sealing table (27) with an annular structure is rotationally connected to the outside of the foam removing tank (15), and the sealing table (27) is fixedly connected to the inner wall of the liquid storage tank (10) and is fixedly connected to the top of the baffle plate (14);

The filtering mechanism comprises a incomplete ring (29) fixedly connected inside the sealing table (27), a filter screen (30) arranged inside the partition plate (14) and a cleaning component arranged at the top of the incomplete ring (29).

2. The casting device of the tractor brake assembly according to claim 1, wherein a plurality of first hydraulic cylinders (6) are installed in the first fixing seat (4), a plurality of sliding rods (7) are fixedly connected between the first fixing seat (4) and the second fixing seat (5), the movable die (3) is sleeved outside the sliding rods (7) in a sliding manner, and the extension end of the first hydraulic cylinder (6) is fixedly connected with the outer wall of the movable die (3);

the fixed die (2) is arranged on the outer wall of the second fixed seat (5).

3. A casting device for a tractor brake assembly according to claim 2, characterized in that the ram is mounted inside the cylinder (8), and the extension end of the second hydraulic cylinder (9) is fixedly connected to the outer wall of one side of the ram.

4. A casting device for a tractor brake assembly according to claim 3, characterized in that the bottom end of the reservoir (10) is connected to a cartridge (8), the cartridge (8) being connected to a stationary mould (2);

The top of the second fixing seat (5) is provided with a bracket (13).

5. Casting device of a tractor brake assembly according to claim 4, characterized in that the bottom of one side of the de-bubbling tank (15) is provided with a feed inlet (16);

An exhaust pipe (17) is arranged at one side of the top of the defoaming tank (15), and a one-way valve (18) is arranged on the exhaust pipe (17);

the top of the liquid storage tank (10) is rotatably connected with a sealing disc (19), and the exhaust pipe (17) penetrates through the sealing disc (19).

6. A casting device for a tractor brake assembly according to claim 5, characterized in that the stirring assembly comprises a transmission shaft (20) rotatably connected inside the de-bubbling tank (15), stirring blades (21) fixedly connected outside the transmission shaft (20) and a first motor (22) mounted on top of the bracket (13);

The transmission shaft (20) penetrates through the sealing disc (19) and is rotationally connected with the sealing disc (19), and the top end of the transmission shaft (20) is rotationally connected with the inner wall of the top of the bracket (13);

The outer part of the output shaft of the first motor (22) and the outer part of the transmission shaft (20) are fixedly sleeved with first gears (23), and the two first gears (23) are meshed with each other.

7. A casting apparatus for a tractor brake assembly according to claim 6, wherein the adjustment assembly comprises a sleeve (24) fixedly connected to the top of the de-bubbling tank (15) and a second motor (25) mounted to the top of the bracket (13);

the sleeve shaft (24) is sleeved outside the transmission shaft (20), and the sleeve shaft (24) penetrates through the sealing disc (19) and is rotationally connected with the sealing disc (19);

the outer part of the output shaft of the second motor (25) and the outer part of the sleeve shaft (24) are fixedly sleeved with second gears (26), and the two second gears (26) are meshed;

The lower edge of the second gear (26) is higher than the upper edge of the exhaust pipe (17).

8. Casting device for a tractor brake assembly according to claim 7, characterized in that one side of the sealing table (27) is provided with a notch;

A discharge hole (28) is formed in the inner side of the sealing table (27).

9. Casting device of a tractor brake assembly according to claim 8, characterized in that the inside of the incomplete ring (29) is provided with a socket (31), the socket (31) being adapted to the filter screen (30);

the bottom of the liquid storage tank (10) is provided with an electric push rod (32), and the extension end of the electric push rod (32) is fixedly connected with the bottom of the filter screen (30).

10. A casting device for a tractor brake assembly according to claim 9, characterized in that the cleaning assembly comprises an arc-shaped guide rail (33) fixedly connected to the top of the incomplete ring (29), a sliding block (34) sliding inside the arc-shaped guide rail (33) and a scraping strip (35) mounted on the sliding block (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 with the outer wall of the sliding block (34);

The bottom of the scraping strip (35) is abutted with the top of the incomplete ring (29), a guide groove (37) is formed in the scraping strip (35), a guide block (38) is slidably connected in the guide groove (37), a second spring (39) is fixedly connected to one end of the guide block (38), the other end of the second spring (39) is fixedly connected with the inner wall of the guide groove (37), and the other end of the guide block (38) extends to the outer part of the scraping strip (35) and is fixedly connected with the outer wall of the sliding block (34);

An inclined plane groove (40) is formed in one end, close to the foam removing tank (15), of the scraping strip (35), a linkage groove (41) is formed in the outer wall of the foam removing tank (15), and the scraping strip (35) is matched with the linkage groove (41);

the inner wall of the sealing table (27) is also provided with a movable groove (42), the movable groove (42) is positioned above the discharge hole (28), and the scraping strip (35) is also positioned in the movable groove (42).