Convenient-to-fill exhaust type automotive brake cylinder pouring gate structure

Abstract

The utility model is suitable for the technical field of automotive brakes, and provides a convenient-to-fill exhaust type automotive brake cylinder body pouring gate structure which comprises an automotive brake cylinder body, and a casting slag ladle and a pouring gate unit which are arranged at the two ends of the automotive brake cylinder body, the automobile brake cylinder body is of a circular ring structure and comprises a limiting face and an abutting face, a plurality of sets of limiting rings are arranged on the limiting face at equal intervals, the limiting rings are arranged around the automobile brake cylinder body, and the limiting rings and the automobile brake cylinder body are coaxially arranged. The device solves the problems that molten metal is concentrated at the position of a middle pouring gate, the flow speed is too high, the molten metal generates deep cavity gas wrapping in the pouring gate, and two flow channel filling at the position of a water gap generates backflow gas wrapping, and achieves the purposes that the eagle beak protrusion is arranged at the position of the middle pouring gate, the filling flow direction angle is changed, and therefore deep cavity gas wrapping is avoided; and a slag ladle is additionally arranged at the water gap to realize drainage, so that the effect of backflow air entrapment at the water gap is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile brakes, and more specifically to a pouring channel structure of a cylinder body of an automobile brake which is convenient for filling and exhausting. Background Art

[0002] Automobile brakes play a braking restraint role in the transmission. As an important component of the brake, the automobile brake cylinder can transmit the braking torque to the brake drum to achieve the clamping of the brake drum. After the brake drum is clamped, it can brake a certain component of the planetary gear and achieve the purpose of changing the transmission ratio.

[0003] The quality of the finished automobile brake cylinder has a lot to do with the flow state of the molten metal after entering the cavity, and the flow state of the molten metal entering the cavity is jointly determined by the form of the runner and the ingates. The conical runner has a wider flow front when the alloy liquid enters the cavity, a gentle flow rate in the center, and a high flow rate on both sides, which is suitable for filling a large plane, so it is more suitable as a casting form for the brake cylinder.

[0004] Although the existing runner structure uses multiple groups of gates to fill the casting ring groove in different areas and control the direction of the molten metal introduction, it can reduce the flow resistance of the molten metal to a certain extent and improve the uniformity of the molten metal flow inside the one-piece gate. However, during the flow of the molten metal, the molten metal will still be concentrated at the middle runner position, causing the molten metal flow rate to be too fast, which will eventually cause the molten metal to have deep cavities and air entrainment inside the runner during the filling process. At the same time, the air entrainment generated by the collision of the two flow channels at the water inlet position will also have an adverse effect on the quality of the finished automobile brake cylinder. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a structure for facilitating filling and exhaust of automobile brake cylinder runners, in which an eagle's beak protrusion is set in the middle runner to change the filling flow angle, avoid air entrapment in the deep cavity, increase a slag bag at the water inlet position to achieve drainage, and thus reduce backflow and air entrainment at the water inlet position.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pouring structure for a vehicle brake cylinder that is convenient for filling and exhausting, comprising a vehicle brake cylinder, a casting slag bag arranged at both ends of the vehicle brake cylinder, and a pouring unit; the vehicle brake cylinder is arranged as a circular ring structure, the vehicle brake cylinder comprises a limiting surface and an abutting surface, a plurality of groups of limiting rings are equidistantly provided on the limiting surface, the limiting rings are arranged around the vehicle brake cylinder and are arranged coaxially with the vehicle brake cylinder, the casting slag bag comprises an inner ring slag bag, the inner ring slag bag is arranged on the vehicle brake cylinder away from the pouring unit side, and is connected to the inner side wall of the automobile brake cylinder body, the bottom of the inner circle slag bag is parallel to the abutting surface, and its thickness is set to b, the value of b is set to 13.00mm, and; a thin sheet slag bag, the thin sheet slag bag is arranged on the side of the automobile brake cylinder body close to the runner unit and is connected to the inner side wall of the automobile brake cylinder body, the bottom of the thin sheet slag bag is parallel to the abutting surface, and its thickness is set to a, the value of a is set to 3.00mm; wherein, the inner circle slag bag and the thin sheet slag bag are coaxially arranged along the axis of the automobile brake cylinder body.

[0008] By adopting the above technical solution, the thin slag bag is set at the water inlet position, and the wall thickness is smaller than the inner circle slag bag, the main end slag bag 2 and the secondary end slag bag. The thin slag bag can drain the air entrainment generated by the filling and collision of the two flow channels of the water inlet to the slag bag position, thereby reducing the air entrainment at the water inlet position. The thinner wall thickness of the thin slag bag can effectively reduce the risk of pressurization and decompression after the molten metal is filled.

[0009] The utility model is further configured as follows: a main terminal slag bag and a secondary terminal slag bag are arranged on the outer side wall of the automobile brake cylinder body close to the inner ring slag bag, the main terminal slag bag and the runner unit are coaxially arranged along the axis of the automobile brake cylinder body, two groups of secondary terminal slag bags are symmetrically arranged on both sides of the axis of the main terminal slag bag, the bottoms of the main terminal slag bag and the secondary terminal slag bag are arranged parallel to the limiting surface, and their thickness is set to c, and the value of c is set to 15.22mm.

[0010] The utility model is further configured as follows: the main terminal slag bag and the secondary terminal slag bag are both connected with a vertical slag bag opening on one side close to the side wall of the automobile brake cylinder body; the vertical slag bag opening is arranged in a vertical direction, and its end is connected with the side wall of the automobile brake cylinder body.

[0011] By adopting the above technical solution and setting a vertical slag bag opening, the bag opening form of the main terminal slag bag and the secondary terminal slag bag is changed from the traditional horizontal position to a vertical slag bag opening form, which is convenient for the main terminal slag bag and the secondary terminal slag bag to fully collect gas and slag in the deep cavity position.

[0012] The utility model is further configured as follows: the runner unit includes a gate sleeve, the gate sleeve is configured as a cylindrical structure and is arranged on the side of the bottom of the automobile brake cylinder body away from the abutment surface, and a straight runner is arranged on one end of the gate sleeve close to the automobile brake cylinder body; the straight runner is arranged along the axis of the automobile brake cylinder body, and the top is flush with the limiting ring on the side close to the limiting ring.

[0013] The utility model is further configured as follows: two groups of cross runners are symmetrically arranged on one side of the straight runner close to the automobile brake cylinder body; the cross runner is configured as a semicircular arc structure whose shape is adapted to the side wall of the automobile brake cylinder body, and a flat ingrate and an eagle-beak ingrate are arranged on the side close to the automobile brake cylinder body.

[0014] The utility model is further configured as follows: two groups of hawk's beak ingates are symmetrically arranged at the connection between the two groups of cross runners about the axis of the straight runner, four groups of flat ingates are symmetrically arranged on both sides of the hawk's beak ingates about the axis of the straight runner, and the flat ingates are equidistant from the hawk's beak ingates; wherein, a flat protrusion is arranged on the side of the flat ingates close to the limiting surface, and an hawk's beak protrusion is arranged on the side of the hawk's beak ingates close to the abutting surface.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. The eagle beak protrusion arranged on the eagle beak ingode can change the filling flow angle inside the eagle beak ingode, so that the molten metal inside can be filled to the bottom surface of the internal cavity of the eagle beak ingode, thereby effectively avoiding the problems of deep cavity air entrainment and reflux of molten metal generated during the filling process of molten metal.

[0017] 2. A thin slag bag is set at the nozzle position. The wall thickness of the thin slag bag is smaller than that of other slag bags. On the one hand, it can guide the air entrainment generated by the filling and collision of the two flow channels of the nozzle to the slag bag position, thereby reducing the air entrainment at the nozzle position; on the other hand, the thinner wall thickness can effectively reduce the risk of pressure increase and pressure relief after the molten metal is filled.

[0018] 3. Set up an inner circle slag bag. After the molten metal enters the mold from the two central runners for filling, the excess molten metal can flow into the inner circle slag bag, and the inner circle slag bag accumulates and fills the cold material gathered from the two metal flows. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the structure of the pouring channel structure of the cylinder body of the automobile brake which is convenient for filling and exhausting.

[0020] Figure 2 for Figure 1 Top view of the .

[0021] Figure 3The utility model is a schematic structural diagram of another perspective of the pouring channel structure of the cylinder body of the automobile brake that is convenient for filling and exhausting.

[0022] Figure 4 The utility model is a schematic diagram of the explosion structure of the pouring channel structure of the cylinder body of the automobile brake which is convenient for filling and exhausting.

[0023] Figure 5 For along Figure 3 Section view in the AA cutting direction.

[0024] Figure 6 for Figure 4 Front view of .

[0025] Figure 7 For along Figure 3 Sectional view in the BB cutting direction.

[0026] Description of the accompanying drawings: 1, automobile brake cylinder; 11, limiting surface; 12, limiting ring; 13, abutting surface;

[0027] 2. Casting slag bag; 21. Inner ring slag bag; 22. Thin sheet slag bag; 23. Main end slag bag; 24. Secondary end slag bag; 25. Vertical slag bag mouth;

[0028] 3. Runner unit; 31. Gate sleeve; 32. Straight runner; 33. Horizontal runner; 34. Horizontal ingates; 35. Horizontal protrusion; 36. Eagle beak ingates; 37. Eagle beak protrusion. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] For example, see Figure 1-7 , the utility model provides the following technical solutions:

[0032] Specifically refers to a pouring channel structure for filling and exhausting automobile brake cylinder, see Figure 1 It includes an automobile brake cylinder 1 and a casting slag ladle 2 and a runner unit 3 arranged at both ends of the automobile brake cylinder 1. The molten metal flows into the mold from the runner unit 3. After the automobile brake cylinder 1 is filled in the mold, the excess molten metal enters the casting slag ladle 2 and is collected.

[0033] See also Figure 1-3The automobile brake cylinder 1 is set as a circular ring structure, and the automobile brake cylinder 1 includes a limiting surface 11 and an abutting surface 13. The limiting surface 11 is provided with a groove surrounding the automobile brake cylinder 1, and a plurality of groups of limiting rings 12 are equidistantly provided on the limiting surface 11. The limiting rings 12 are arranged around the automobile brake cylinder 1 and are arranged coaxially with the automobile brake cylinder 1. The abutting surface 13 is opposite to the limiting surface 11, and its surface is flat without a groove.

[0034] See also Figure 1-4 and Figure 6 The casting slag ladle 2 includes an inner ring slag ladle 21, a thin slag ladle 22, a main end slag ladle 23, a secondary end slag ladle 24 and a vertical slag ladle mouth 25. The inner ring slag ladle 21 and the thin slag ladle 22 are coaxially arranged along the axis of the automobile brake cylinder 1. The inner ring slag ladle 21 is arranged on the side of the automobile brake cylinder 1 away from the runner unit 3, and the thin slag ladle 22 is arranged on the side of the automobile brake cylinder 1 close to the runner unit 3. The bottom of the inner ring slag ladle 21 is arranged parallel to the abutment surface 13, and its thickness is set to b, and the value of b is set to 13.00mm. The inner ring slag ladle 21 is set to an arc structure that matches the shape of the inner side wall of the automobile brake cylinder 1 and is connected to the inner side wall of the automobile brake cylinder 1. After the molten metal enters the mold from the two central runners for filling, the excess molten metal can flow into the inner ring slag ladle 21, and the inner ring slag ladle 21 accumulates and fills the cold material gathered by the two metal flows. The thin-sheet slag bag 22 is set to a circular arc structure that matches the shape of the inner wall of the automobile brake cylinder 1 and is connected to the inner wall of the automobile brake cylinder 1. The thin-sheet slag bag 22 is set at the sprue position, and the wall thickness is smaller than the inner circle slag bag 21, the main end slag bag 23 and the secondary end slag bag 24. The bottom of the thin-sheet slag bag 22 is set parallel to the abutment surface 13, and its thickness is set to a, and the value of a is set to 3.00mm. On the one hand, the thin-sheet slag bag 22 can divert the air entrainment generated by the filling and collision of the two flow channels of the sprue to the slag bag position, thereby reducing the air entrainment at the sprue position; on the other hand, the thinner wall thickness can effectively reduce the risk of pressure increase and pressure relief after the metal liquid is filled.

[0035] See also Figure 1-4 and Figure 6A main terminal slag ladle 23 and a secondary terminal slag ladle 24 are arranged on the outer wall of the automobile brake cylinder 1 near the inner ring slag ladle 21. The main terminal slag ladle 23 and the runner unit 3 are coaxially arranged along the axis of the automobile brake cylinder 1. Two groups of secondary terminal slag ladle 24 are symmetrically arranged on both sides of the axis of the main terminal slag ladle 23. The bottoms of the main terminal slag ladle 23 and the secondary terminal slag ladle 24 are arranged parallel to the limiting surface 11, and their thickness is set to c, and the value of c is set to 15.22mm. By setting the main terminal slag ladle 23 and the two groups of secondary terminal slag ladle 24, gas and slag can be fully collected during the metal liquid filling process. The main terminal slag ladle 23 and the secondary terminal slag ladle 24 are connected to a vertical slag ladle opening 25 on the side of the side wall of the automobile brake cylinder 1. The vertical slag ladle opening 25 is arranged in the vertical direction, and its end is connected to the side wall of the automobile brake cylinder 1. By providing the vertical slag ladle opening 25 , the opening forms of the main terminal slag ladle 23 and the secondary terminal slag ladle 24 are changed from the traditional horizontal opening form to the vertical slag ladle opening form, so as to facilitate the sufficient gas and slag collection in the deep cavity position during the metal liquid filling process, thereby improving the finished product quality of the automobile brake cylinder body 1 .

[0036] See also Figure 1-3 , Figure 5 and Figure 7 The runner unit 3 includes a gate sleeve 31, a sprue 32, a runner 33, a flat ingode 34, a flat protrusion 35, an eagle-beak ingode 36 and an eagle-beak protrusion 37. The gate sleeve 31 is configured as a cylindrical structure and is arranged on the side of the bottom of the automobile brake cylinder 1 away from the abutment surface 13. A sprue 32 is arranged at one end of the gate sleeve 31 close to the automobile brake cylinder 1. The sprue 32 is arranged along the axis of the automobile brake cylinder 1, and the top is flush with the limit ring 12 near the side of the limit ring 12. During the filling process of the molten metal, the filling can be completed by entering the sprue 32 through the gate sleeve 31. Two groups of runners 33 are symmetrically arranged on the side of the sprue 32 close to the automobile brake cylinder 1. The runner 33 is configured as a semicircular arc structure whose shape is adapted to the side wall of the automobile brake cylinder 1. The horizontal runner 33 is provided with a horizontal ingrate 34 and an eagle-beak ingrate 36 on one side close to the automobile brake cylinder body 1. The molten metal entering the sprue 32 can gradually flow into the horizontal ingrate 34 and the eagle-beak ingrate 36 through two groups of symmetrically arranged horizontal runners 33 during the flow process, and finally enter the mold through the horizontal ingrate 34 and the eagle-beak ingrate 36, and form the automobile brake cylinder body 1 after cooling inside the mold.

[0037] See also Figure 1-3 , Figure 5 and Figure 7Two groups of hawk beak ingodes 36 are symmetrically arranged at the connection of the two groups of cross runners 33 about the axis of the straight runner 32, and a hawk beak protrusion 37 is arranged on the side of the hawk beak ingode 36 close to the abutment surface 13. Four groups of flat ingodes 34 are symmetrically arranged on both sides of the hawk beak ingode 36 about the axis of the straight runner 32, and the flat ingodes 34 and the hawk beak ingode 36 are equidistantly arranged, and a flat protrusion 35 is arranged on the side of the flat ingode 34 close to the limiting surface 11. The angle of the flat protrusion 35 is smaller than that of the hawk beak protrusion 37, and the protrusion directions of the two are opposite. When the molten metal flows into the horizontal ingrowth 34 and the eagle beak ingrowth 36 respectively through the horizontal runner 33, the molten metal in the two eagle beak ingrowths 36 located in the middle is relatively concentrated, so the flow speed of the molten metal in the eagle beak ingrowth 36 is faster than the flow speed of the molten metal in the horizontal ingrowth 34. The excessive flow speed of the molten metal will cause deep cavity air entrainment and molten metal backflow and air entrainment problems in the eagle beak ingrowth 36. By providing the eagle beak protrusion 37 on the eagle beak ingrowth 36, the filling flow angle inside the eagle beak ingrowth 36 can be changed, so that the molten metal inside can be filled to the bottom surface of the internal cavity of the eagle beak ingrowth 36, thereby effectively avoiding the problems of deep cavity air entrainment and molten metal backflow and air entrainment generated during the molten metal filling process.

[0038] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A pouring channel structure for a cylinder of an automobile brake that is convenient for filling and exhausting, characterized in that: It comprises an automobile brake cylinder (1), a casting slag ladle (2) and a runner unit (3) arranged at both ends of the automobile brake cylinder (1); The automobile brake cylinder (1) is configured as a circular ring structure, the automobile brake cylinder (1) comprising a limiting surface (11) and an abutting surface (13), a plurality of groups of limiting rings (12) being equidistantly provided on the limiting surface (11), the limiting rings (12) being arranged around the automobile brake cylinder (1) and being coaxially arranged with the automobile brake cylinder (1); The casting slag ladle (2) comprises an inner ring slag ladle (21), the inner ring slag ladle (21) being arranged on a side of the automobile brake cylinder (1) away from the runner unit (3) and being in communication with the inner side wall of the automobile brake cylinder (1), the bottom of the inner ring slag ladle (21) being arranged parallel to the abutting surface (13), and the thickness thereof being set to b, the value of b being set to 13.00 mm, and; A thin slag bag (22), the thin slag bag (22) being arranged on a side of the automobile brake cylinder (1) close to the runner unit (3) and being in communication with the inner wall of the automobile brake cylinder (1), the bottom of the thin slag bag (22) being arranged parallel to the abutting surface (13), and the thickness thereof being set to a, wherein the value of a is set to 3.00 mm; The inner ring slag package (21) and the thin sheet slag package (22) are coaxially arranged along the axis of the automobile brake cylinder body (1).

2. The pouring channel structure of the automobile brake cylinder body that is convenient for filling and exhausting according to claim 1 is characterized in that: A main terminal slag bag (23) and a secondary terminal slag bag (24) are arranged on the outer side wall of the automobile brake cylinder (1) close to the inner ring slag bag (21); the main terminal slag bag (23) and the runner unit (3) are coaxially arranged along the axis of the automobile brake cylinder (1); two groups of secondary terminal slag bags (24) are symmetrically arranged on both sides of the axis of the main terminal slag bag (23); the bottoms of the main terminal slag bag (23) and the secondary terminal slag bag (24) are arranged parallel to the limiting surface (11), and their thickness is set to c, and the value of c is set to 15.22 mm.

3. The pouring channel structure of the automobile brake cylinder body that is convenient for filling and exhausting according to claim 2 is characterized in that: The main terminal slag bag (23) and the secondary terminal slag bag (24) are both connected to a vertical slag bag opening (25) on one side close to the side wall of the automobile brake cylinder (1); the vertical slag bag opening (25) is arranged in a vertical direction, and the end thereof is in communication with the side wall of the automobile brake cylinder (1).

4. The pouring channel structure for an automobile brake cylinder that is convenient for filling and exhausting according to claim 1 is characterized in that: The runner unit (3) comprises: A sprue bushing (31) is configured as a cylindrical structure and is disposed on a side of the bottom of the automobile brake cylinder (1) away from the abutment surface (13); a sprue (32) is disposed on one end of the sprue bushing (31) close to the automobile brake cylinder (1); The sprue (32) is arranged along the axis of the automobile brake cylinder (1), and the top is close to the side of the limiting ring (12) and is flush with the limiting ring (12).

5. The pouring channel structure for an automobile brake cylinder that is convenient for filling and exhausting according to claim 4 is characterized in that: The sprue (32) is symmetrically provided with two sets of cross runners (33) on one side close to the automobile brake cylinder (1); The runner (33) is configured as a semicircular arc structure whose shape matches the side wall of the automobile brake cylinder (1), and a horizontal ingrate (34) and an eagle-beak ingrate (36) are provided on a side close to the automobile brake cylinder (1).

6. The pouring channel structure for a cylinder of a vehicle brake that is convenient for filling and exhausting according to claim 5, characterized in that: Two groups of hawk-beak ingates (36) are symmetrically arranged at the connection point of the two groups of cross runners (33) about the axis of the straight runner (32), and four groups of horizontal ingates (34) are symmetrically arranged on both sides of the hawk-beak ingates (36) about the axis of the straight runner (32), and the horizontal ingates (34) and the hawk-beak ingates (36) are equidistantly arranged; The flat ingrown channel (34) is provided with a flat protrusion (35) on the side close to the limiting surface (11), and the eagle-beak ingrown channel (36) is provided with an eagle-beak protrusion (37) on the side close to the abutting surface (13).

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