Crank arm casting mold for train

Abstract

The utility model discloses a crank arm casting mold for a train. The crank arm casting mold comprises a mounting plate and a mold plate mounting mechanism, sliding columns which are uniformly distributed are arranged at the upper end of the mounting plate, a sliding plate is slidably connected between the sliding columns, and die holders are arranged on the upper surface of the mounting plate and the lower surface of the sliding plate respectively; the mold plate mounting mechanism comprises trapezoidal strips, trapezoidal grooves, insertion strips and insertion holes, the trapezoidal grooves are formed in the left end and the right end of the inner side face of the mold base correspondingly, the trapezoidal strips are slidably connected into the trapezoidal grooves correspondingly, the insertion strips are arranged at the front ends of the trapezoidal strips correspondingly, and the insertion holes are formed in the left end and the right end of the front side face of the mold base correspondingly. When the crank arm casting for the train is machined, the upper die plate and the lower die plate are detachable, the upper die plate and the lower die plate of different sizes can be replaced conveniently, meanwhile, rapid cooling treatment of molten metal in the die is achieved, the forming time of the crank arm casting for the train is shortened, and the production efficiency of the crank arm casting for the train is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of processing a crank arm for a train, in particular to a crank arm casting mould for a train. Background Art

[0002] The crank arm castings for trains are important castings installed on the bogies or other related parts of the trains, and their quality directly affects the running safety and performance of the trains. For example, the crank arm castings installed on the bogies of diesel locomotives play the role of connecting and transmitting force. During the production process, different batches of crank arm castings may have various quality problems, such as sand holes. In order to solve these problems, it is necessary to analyze and study the crank arm casting process, such as redesigning the pouring system to improve product quality. The crank arm castings are usually made of specific materials, such as carbon steel, alloy steel, stainless steel, etc. The specific material selection depends on the design requirements and working environment of the train;

[0003] In some existing casting molds for train crank arms, when processing the castings for train crank arms, two molds are combined, and molten metal is poured into the combined mold through a pouring port, and then the molds are cooled. After cooling, the two molds are separated to take out the castings for train crank arms;

[0004] In the traditional mold for train crank arm casting, the upper and lower templates cannot be quickly replaced when processing the train crank arm casting, so only train crank arm castings of a single size can be cast. At the same time, a long time of natural cooling is required after casting, which affects the production efficiency of the train crank arm casting. For this reason, we propose a mold for train crank arm casting. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a casting mold for a train crank arm. When processing the train crank arm casting, the upper and lower templates are detachable, which is convenient for replacing the upper and lower templates of different sizes. At the same time, the metal water is quickly cooled in the mold, which shortens the molding time of the train crank arm casting, improves the production efficiency of the train crank arm casting, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a train crank arm casting mold, comprising a mounting plate and a template mounting mechanism;

[0007] Mounting plate: The upper end of the mounting plate is provided with evenly distributed sliding columns, a sliding plate is slidably connected between the sliding columns, and a mold seat is provided on the upper surface of the mounting plate and the lower surface of the sliding plate respectively;

[0008] Template installation mechanism: It includes trapezoidal bars, trapezoidal grooves, insert bars and sockets. The left and right ends of the inner side surface of the mold base are respectively provided with trapezoidal grooves, the inside of the trapezoidal grooves are respectively slidably connected with trapezoidal bars, and the front ends of the trapezoidal bars are respectively provided with insert bars. The left and right ends of the front side surface of the mold base are respectively provided with sockets, and the insert bars are respectively installed in cooperation with adjacent sockets. The inner ends of the two adjacent trapezoidal bars on the left and right are fixedly connected to the outer sides of the adjacent templates. The upper and lower templates are detachable, and the upper and lower templates of different sizes can be quickly replaced, which is convenient for casting train crank arm castings of different sizes. At the same time, the metal water is quickly cooled in the mold, which shortens the molding time of the train crank arm casting and improves the production efficiency of the train crank arm casting.

[0009] Furthermore, a control switch group is provided outside the mounting plate, and an input end of the control switch group is electrically connected to an output end of an external power source to provide electrical connection for various electrical appliances.

[0010] Furthermore, the template installation mechanism also includes teeth, a rectangular box, a rotating shaft and a paddle. The outer side surfaces of the insertion strips are respectively provided with evenly distributed teeth. The front side surfaces of the left and right ends of the mold base are respectively provided with rectangular boxes. The interiors of the rectangular boxes are rotatably connected with rotating shafts. The middle parts of the rotating shafts are respectively fixed with paddles. The inner ends of the paddles are respectively installed in cooperation with the teeth on the outer side surfaces of adjacent insertion strips to achieve snap-on connection.

[0011] Furthermore, the template installation mechanism also includes a torsion spring, and the outside of the rotating shaft is respectively sleeved with a torsion spring, the inner end of the torsion spring is respectively fixedly connected to the outside of the adjacent rotating shaft, and the outer end of the torsion spring is respectively fixedly connected to the inner wall of the adjacent rectangular box to facilitate rebound.

[0012] Furthermore, the template installation mechanism also includes a U-shaped slide groove and a lever. The inner side surfaces of the rectangular box are respectively provided with U-shaped slide grooves, and the insides of the U-shaped slide grooves are respectively slidably connected with levers. The outer ends of the levers are respectively fixedly connected to the inner ends of adjacent paddles for easy installation.

[0013] Furthermore, metal tubes are provided at the inner ends of the mold base, and left-right symmetrical fans are provided on the inner walls of the mold base. Input ends of the fans are electrically connected to output ends of the control switch group to achieve temperature reduction and cooling.

[0014] Furthermore, it also includes a pouring pipe, which is arranged at the feed inlet on the left side of the upper mold base to facilitate pouring.

[0015] Furthermore, four corners of the mounting plate are respectively provided with mounting holes for easy installation.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the train crank arm casting mold has the following advantages:

[0017] 1. Insert the trapezoidal bar into the trapezoidal groove, and then the inserting bar will be inserted into the inside of the jack. The teeth on the outer side of the inserting bar will contact the pick. Under the rebound action of the torsion spring, the pick will be engaged with the teeth, and the inserting bar will not be able to move. When the template needs to be replaced, push the lever, the lever will drive the pick to separate from the teeth, and then it will be pulled out from the inside of the trapezoidal groove through the trapezoidal bar, and then the template will be replaced. When processing the train crank arm casting, the upper and lower templates are detachable, and the upper and lower templates of different sizes can be quickly replaced, which is convenient for casting train crank arm castings of different sizes.

[0018] 2. Then, ice water is injected into the interior of the metal tube through an external water pipe. The fan will draw external air into the interior of the mold base through the heat dissipation holes on the left and right ends of the mold base. The air will pass through the metal tube to form cold wind and blow on the bottom surface of the template, cooling the templates at the upper and lower ends respectively. After the cooling is completed, the crank arm casting can be taken out, which shortens the molding time of the train crank arm casting and improves the production efficiency of the train crank arm casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 This is an enlarged structural diagram of point A of the utility model.

[0022] In the figure: 1 mounting plate, 2 sliding column, 3 sliding plate, 4 mold base, 5 mold plate mounting mechanism, 501 trapezoidal bar, 502 trapezoidal groove, 503 inserting bar, 504 inserting hole, 505 tooth pattern, 506 rectangular box, 507 rotating shaft, 508 paddle, 509 torsion spring, 510 U-shaped slide groove, 511 lever, 6 mold plate, 7 metal pipe, 8 fan, 9 casting pipe, 10 mounting hole, 11 control switch group. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 , This embodiment provides a technical solution: a train crank casting mold, including a mounting plate 1 and a template mounting mechanism 5;

[0025] Mounting plate 1: The upper end thereof is provided with evenly distributed sliding columns 2, between which sliding columns 2 are slidably connected with sliding plates 3, the upper surface of mounting plate 1 and the lower surface of sliding plates 3 are provided with mold bases 4 respectively, the outside of mounting plate 1 is provided with a control switch group 11, the input end of the control switch group 11 is electrically connected to the output end of the external power supply, the inner side ends of the mold base 4 are provided with metal pipes 7 respectively, the inner side walls of the mold base 4 are provided with left-right symmetrical fans 8 respectively, the input ends of the fans 8 are electrically connected to the output end of the control switch group 11, and also include a casting pipe 9, which is arranged at the feed port on the left side of the upper mold base 4 At the four corners of the mounting plate 1, mounting holes 10 are respectively opened. In order to speed up the cooling of the metal water in the mold when the two templates 6 are combined into one, ice water is then injected into the interior of the metal tube 7 through the external water pipe, and then the fan 8 is operated by regulating the control switch group 11. The fan 8 will draw the external air into the interior of the mold base 4 through the heat dissipation holes at the left and right ends of the mold base 4, and blow the air on the surface of the metal tube 7. The air will pass through the metal tube 7 to form cold wind and blow on the bottom surface of the template 6, respectively cooling the templates 6 at the upper and lower ends. After the cooling is completed, the crank arm casting can be taken out;

[0026] The template installation mechanism 5 includes a trapezoidal bar 501, a trapezoidal groove 502, an insertion bar 503 and a socket 504. The left and right ends of the inner side surface of the mold base 4 are respectively provided with a trapezoidal groove 502, the inside of the trapezoidal groove 502 is respectively slidably connected with the trapezoidal bar 501, the front end of the trapezoidal bar 501 is respectively provided with an insertion bar 503, the left and right ends of the front side surface of the mold base 4 are respectively provided with a socket 504, the insertion bar 503 is respectively installed in cooperation with the adjacent socket 504, the inner side ends of the two adjacent trapezoidal bars 501 on the left and right are fixedly connected to the outer side surface of the adjacent template 6, the template installation mechanism 5 also includes a tooth pattern 505, a rectangular box 506, a rotating shaft 507 and a paddle 508, the outer side surface of the insertion bar 503 is divided into The mold base 4 is provided with uniformly distributed teeth 505, and the front side surfaces of the left and right ends are respectively provided with rectangular boxes 506, and the interior of the rectangular boxes 506 is rotatably connected with a rotating shaft 507, and the middle of the rotating shaft 507 is respectively fixedly sleeved with a paddle 508, and the inner end of the paddle 508 is respectively installed in cooperation with the teeth 505 on the outer side of the adjacent insert 503. The template installation mechanism 5 also includes a torsion spring 509, and the outer side of the rotating shaft 507 is respectively sleeved with a torsion spring 509, and the inner end of the torsion spring 509 is respectively fixedly connected to the outer side of the adjacent rotating shaft 507, and the outer end of the torsion spring 509 is respectively fixedly connected to the inner wall of the adjacent rectangular box 506. The template installation mechanism 5 also includes a U-shaped slide groove 510 and lever 511, the inner side of the rectangular box 506 is respectively provided with a U-shaped slide groove 510, the interior of the U-shaped slide groove 510 is respectively slidably connected with a lever 511, the outer end of the lever 511 is respectively fixedly connected to the inner end of the adjacent paddle 508, when the train crank arm casting is processed, first, the trapezoidal bars 501 at both ends are respectively inserted into the interior of the adjacent trapezoidal groove 502, and then the inserting bar 503 is respectively inserted into the interior of the insertion hole 504, when the inserting bar 503 is inserted into the interior of the insertion hole 504, the tooth pattern 505 on the outer side of the inserting bar 503 will contact with the paddle 508, when the tooth pattern 505 contacts the paddle 508, the paddle 508 is rebounded by the torsion spring 509 Next, the paddle 508 will be engaged with the tooth pattern 505, and the insert strip 503 will be unable to move, and then the upper mold base 4 will be pushed downward, and then the upper template 6 will be moved downward, so that the two templates 6 will be matched, and then the external molten metal will be injected into the mold in which the two templates 6 are combined into one through the casting pipe 9, and the molten metal will be cooled in the mold in which the two templates 6 are combined into one, and then when the template 6 needs to be replaced, the paddle 511 is pushed respectively, and the paddle 511 will slide inside the U-shaped slide groove 510, and then the paddle 508 will be driven to separate from the tooth pattern 505, and then it will be pulled out from the inside of the trapezoidal groove 502 through the trapezoidal bar 501, and then the template 6 will be replaced.

[0027] The working principle of a train crank arm casting mold provided by the utility model is as follows: when processing the train crank arm casting, first, the trapezoidal bars 501 at both ends are respectively inserted into the adjacent trapezoidal grooves 502, and then the inserting bars 503 are respectively inserted into the inside of the insertion holes 504. When the inserting bars 503 are inserted into the inside of the insertion holes 504, the tooth pattern 505 on the outer side of the inserting bars 503 will contact the paddle 508. When the tooth pattern 505 contacts the paddle 508, the paddle 508 will be engaged with the tooth pattern 505 under the rebound action of the torsion spring 509, and the inserting bars 503 will be unable to move. Then, the upper mold base 4 will be pushed downward, and then the upper template 6 will be moved downward, so that the two templates 6 will be matched. Then, the external molten metal will be injected into the mold that combines the two templates 6 into one through the pouring pipe 9. The molten metal will be poured into the two templates. 6 is cooled in the mold combined into one. In order to speed up the cooling of the metal water in the mold combined into one by two templates 6, ice water is then injected into the interior of the metal tube 7 through the external water pipe, and then the control switch group 11 is adjusted to operate the fan 8. The fan 8 will draw the external air into the interior of the mold base 4 through the heat dissipation holes on the left and right ends of the mold base 4, and blow the air on the surface of the metal tube 7. The air will pass through the metal tube 7 to form cold wind and blow on the bottom surface of the template 6, respectively cooling the templates 6 at the upper and lower ends. After the cooling is completed, the crank arm casting can be taken out, and then when the template 6 needs to be replaced, the lever 511 is respectively moved, and the lever 511 will slide inside the U-shaped slide groove 510, thereby driving the paddle 508 to separate from the tooth pattern 505, and then it will be drawn out from the inside of the trapezoidal groove 502 through the trapezoidal bar 501, and then the template 6 is replaced.

[0028] It is worth noting that the fan 8 disclosed in the above embodiment can be selected from D03X-12TL, and the control switch group 11 is provided with a switch button corresponding to the fan 8 for controlling its switching operation.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A train crank casting mold, characterized in that: It comprises a mounting plate (1) and a template mounting mechanism (5); The mounting plate (1) is provided with evenly distributed sliding columns (2) at its upper end, a sliding plate (3) is slidably connected between the sliding columns (2), and a mold base (4) is provided on the upper surface of the mounting plate (1) and the lower surface of the sliding plate (3) respectively; The template installation mechanism (5) comprises a trapezoidal bar (501), a trapezoidal groove (502), an insertion bar (503) and an insertion hole (504). The left and right ends of the inner side surface of the mold base (4) are respectively provided with a trapezoidal groove (502). The inside of the trapezoidal groove (502) is respectively slidably connected with a trapezoidal bar (501). The front end of the trapezoidal bar (501) is respectively provided with an insertion bar (503). The left and right ends of the front side surface of the mold base (4) are respectively provided with an insertion hole (504). The insertion bar (503) is respectively installed in cooperation with the adjacent insertion hole (504). The inner side ends of the two adjacent trapezoidal bars (501) on the left and right are fixedly connected to the outer side surface of the adjacent template (6).

2. The train crank arm casting mold according to claim 1, characterized in that: A control switch group (11) is provided outside the mounting plate (1), and an input end of the control switch group (11) is electrically connected to an output end of an external power source.

3. The train crank arm casting mold according to claim 1, characterized in that: The template installation mechanism (5) further comprises teeth (505), a rectangular box (506), a rotating shaft (507) and a paddle (508); the outer side surfaces of the insert strips (503) are respectively provided with uniformly distributed teeth (505); the front side surfaces of the left and right ends of the mold base (4) are respectively provided with rectangular boxes (506); the interiors of the rectangular boxes (506) are respectively rotatably connected with rotating shafts (507); the middle parts of the rotating shafts (507) are respectively fixedly sleeved with paddles (508); the inner ends of the paddles (508) are respectively mounted in cooperation with the teeth (505) on the outer side surfaces of the adjacent insert strips (503).

4. A train crank arm casting mold according to claim 3, characterized in that: The template installation mechanism (5) also includes a torsion spring (509), and the outside of the rotating shaft (507) is respectively sleeved with a torsion spring (509), the inner end of the torsion spring (509) is respectively fixedly connected to the outside of the adjacent rotating shaft (507), and the outer end of the torsion spring (509) is respectively fixedly connected to the inner wall of the adjacent rectangular box (506).

5. The train crank arm casting mold according to claim 4, characterized in that: The template installation mechanism (5) also includes a U-shaped slide groove (510) and a lever (511), the inner side surfaces of the rectangular box (506) are respectively provided with U-shaped slide grooves (510), the interior of the U-shaped slide grooves (510) are respectively slidably connected with levers (511), and the outer ends of the levers (511) are respectively fixedly connected to the inner ends of adjacent paddles (508).

6. The train crank arm casting mold according to claim 2, characterized in that: The inner ends of the mold base (4) are respectively provided with metal tubes (7), and the inner side walls of the mold base (4) are respectively provided with left-right symmetrical fans (8), and the input ends of the fans (8) are electrically connected to the output ends of the control switch group (11).

7. The train crank arm casting mold according to claim 1, characterized in that: It also comprises a pouring pipe (9), wherein the pouring pipe (9) is arranged at the feed inlet on the left side of the upper mold base (4).

8. The train crank arm casting mold according to claim 1, characterized in that: The four corners of the mounting plate (1) are respectively provided with mounting holes (10).

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