CN217889456U

CN217889456U - Continuous casting device for speed reducer shell

Info

Publication number: CN217889456U
Application number: CN202221320217.7U
Authority: CN
Inventors: 张永军; 张海峰; 田向明; 杜雪霞; 常江平; 王凯
Original assignee: Linzhou Southeast Auto Parts Co ltd
Current assignee: Linzhou Southeast Auto Parts Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-11-25
Anticipated expiration: 2032-05-30

Abstract

The utility model relates to a reducer housing produces technical field, concretely relates to reducer housing is with continuous casting device. Comprises a bracket and a guide rail; a plurality of groups of casting mold mechanisms distributed at intervals are arranged on the guide rail; each group of casting mold mechanism comprises a driving trolley and a shell mold; the driving trolley can slide on the guide rail; the connection and turning between two adjacent driving trolleys are realized through a connecting rod structure; a liquid storage mechanism is also arranged on one side of the bracket and comprises a liquid storage tank, a casting pipe and a high-temperature-resistant electromagnetic flowmeter; the support is further provided with a cooling mechanism, the cooling mechanism is configured to start to cool to a preset first temperature when the drive trolley after casting molding reaches a preset first position, and then start to cool to a preset second temperature when the drive trolley continues to move to a preset second position. The device realizes the continuity of casting molding of the reducer shell and the control of the consistency of the matching casting quantity of the size of the reducer shell, and also realizes the purpose of staged and stepped orderly cooling of the device.

Description

Continuous casting device for speed reducer shell

Technical Field

The utility model relates to a reducer housing produces technical field, concretely relates to reducer housing is with continuous casting device.

Background

The production of reduction gear casing, in present prior art, still adopt the mode of casting integrated into one piece, but this kind of mode is wasted time and energy, and the workman master adopts casting die utensil and supplementary splendid attire instrument to carry out the casting shaping, but the liquid volume of splendid attire is inconsistent, lacks the controllability. Along with the continuous improvement of actual casting technique, the ladle casting tool of ration size has also appeared and has cast, has improved the work efficiency of retarder casing casting to a certain extent, but still adopts artifical one to cast, influences the improvement of production efficiency very much, says to the master worker moreover, has great potential safety hazard, has seriously restricted retarder casing shaping casting's high efficiency, greatly reduced the development that production type enterprise pursue cost and benefit.

SUMMERY OF THE UTILITY MODEL

The utility model provides a speed reducer casing is with continuous casting device to solve the above-mentioned prior art that exists and can't realize automatic quantitative casting control, the unable process that realizes speed reducer casing continuity casting in the production of speed reducer casing, lead to that production efficiency is slow, casting liquid reheat increases manufacturing cost, speed reducer casing casting shaping after cooling straight line descend easily lead to the technical problem that the speed reducer casing quality reduces.

The utility model discloses a speed reducer casing is with continuous casting device adopts following technical scheme:

a continuous casting device for a speed reducer shell comprises supports, wherein the supports are distributed horizontally, and guide rails distributed in an oval shape are arranged on the upper end faces of the supports; a plurality of groups of casting mold mechanisms distributed at intervals are arranged on the guide rail; each group of the casting mold mechanism comprises a driving trolley and a shell mold for casting and molding the shell of the speed reducer; the shell mold is of a separable structure and is arranged on the driving trolley; the driving trolley can slide on the guide rail; a driving motor is arranged on the driving trolley at the foremost end; the connection and turning between two adjacent driving trolleys are realized through a connecting rod structure; a liquid storage mechanism is further arranged on one side of the support and comprises a liquid storage tank, a casting pipe and a high-temperature-resistant electromagnetic flowmeter; the liquid storage tank is arranged on the bracket and internally provided with a heating resistance wire to keep the circulation of the stored liquid; the casting pipe is obliquely arranged at the liquid storage tank, the output end of the casting pipe faces the center of the shell mold, a switch valve is arranged at the joint of the liquid storage tank and the shell mold, and the high-temperature-resistant electromagnetic flowmeter is arranged on the casting pipe; the cooling mechanism is configured to start cooling to a preset first temperature when the cast driving trolley reaches a preset first position, and then start cooling to a preset second temperature when the driving trolley continues to move to a preset second position, and the distance between the initial position and the preset second position is kept twice as long as the distance between the initial position and the preset first position.

Preferably, the cooling mechanism is arranged in front of the driving trolley in the advancing direction; and comprises a first cooling structure and a second cooling structure; the first cooling structure comprises a water storage tank, a water pump and a high-pressure spray head; the two water storage tanks are respectively arranged on two sides of the bracket; the water pump is arranged in each water storage tank; the high-pressure spray head is connected with the water pump through a pipeline, and the output end of the high-pressure spray head faces the shell mold.

Further preferably, the second cooling structure comprises a cooling chamber, a condenser pipe and a fan; the cooling chamber is distributed left and right, and the left side wall and the right side wall are respectively provided with an inlet and an outlet; the two condenser pipes are symmetrically arranged in the front side wall and the rear side wall of the cooling chamber; the fan sets up in the outside of condenser pipe and is connected with the cooling chamber lateral wall.

Further preferably, the first cooling structure further comprises a standing recovery box; the opening of the standing recovery box faces upwards and is arranged at the lower end of the support, and the position of the standing recovery box corresponds to that of the water storage tank.

Further preferably, the inlet and the outlet of the cooling chamber are both provided with a shielding curtain to ensure the cooling temperature in the cooling chamber.

Further preferably, in the initial position, the distance between the first cooling structure and the second cooling structure is equal to the linear length of the connecting rod structure.

Preferably, the support comprises a horizontally arranged support plate and support legs arranged below the support plate.

Preferably, the connecting rod structure comprises three connecting rods connected end to end, one side of each connecting rod at two ends is connected with two adjacent driving trolleys respectively, and the connecting rod and the adjacent connecting rod are connected in a rotating mode through a pin shaft in the middle.

The utility model has the advantages that:

1. the utility model discloses a set up the synchronous motion of drive dolly and carry the fashioned shell mould of reduction gear casing casting to set up driving motor on the drive dolly in the forefront, form the structure that "little train" stimulates, through the distance between single removal two adjacent drive dollies, finally realize the circulation and move on the guide rail that the ellipse distributes, and then realized the fashioned continuity of reduction gear casing casting, improved the practicality and the high efficiency of this casting device greatly;

2. the utility model discloses further through setting up the cooperation of liquid reserve tank, casting tube and high temperature resistant electromagnetic flowmeter, and cooperate the position sensor who sets up on the liquid reserve tank, whether perception drive dolly reaches the assigned position, and then under the effect of ooff valve, open the casting mixed liquid, enter into the shell mould through casting tube, and realize the control of liquid flow through the high temperature resistant electromagnetic flowmeter who sets up on the casting tube, finally realized the uniformity control to the reduction gear casing size matching casting volume, improved the automated production efficiency of the device, avoided the scald phenomenon that causes the staff because of high temperature liquid;

3. the utility model is further provided with a cooling mechanism, when the drive trolley after casting molding reaches a preset first position, namely moves to the position of the first cooling structure, (namely moves the distance between the adjacent drive trolleys); starting to spray water at high pressure to realize that the water bath is cooled to a preset first temperature, and then continuing to move to a preset second position, namely moving to the position of a second cooling structure, starting to cool to the preset second temperature through air flow in the cooling chamber, and keeping the distance between the initial position and the preset second position to be twice as long as the distance between the initial position and the preset first position; the device realizes the cooling of a small part of water bath and most of air flow at first, further realizes the purpose of stage and step type cooling of the device, further ensures the quality of the casting mixed liquid during molding, and avoids the phenomenon of gap or crack due to overlarge local stress caused by linear cooling.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a perspective view of the overall structure of the present invention;

fig. 2 is a schematic view of the connecting rod structure of the present invention;

fig. 3 is a schematic cross-sectional view of a first cooling structure of the present invention;

fig. 4 is a schematic cross-sectional view of a second cooling structure according to the present invention.

In the figure: 1. a support; 11. a support plate; 12. supporting legs; 2. a guide rail; 3. a mould casting mechanism; 31. driving the trolley; 32. a shell mold; 4. a connecting rod structure; 41. a connecting rod; 42. a pin shaft; 5. a liquid storage mechanism; 51. a liquid storage tank; 52. a casting tube; 53. a high temperature resistant electromagnetic flow meter; 6. a cooling mechanism; 61. a first cooling structure; 62. a second cooling structure; 71. a water storage tank; 72. a water pump; 73. a high pressure spray head; 74. standing a recovery box; 81. a cooling chamber; 82. a condenser tube; 83. a fan; 84. an inlet; 85. an outlet; 86. a curtain is shielded.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1: as shown in fig. 1-4:

a continuous casting device for a speed reducer shell comprises a support 1, wherein the support 1 comprises a support plate 11 arranged horizontally and support legs 12 arranged below the support plate 11. The supporting leg 12 is connected and fixed with the external ground through a fastening bolt. The support plate 11 is of an elliptical ring configuration. The support 1 is horizontally distributed, and the upper end face of the support is provided with guide rails 2 which are distributed in an oval shape. A plurality of groups of casting mold mechanisms 3 distributed at intervals are arranged on the guide rail 2. Each set of casting mechanism 3 includes a driving trolley 31 and a shell mold 32 for casting and forming the reducer shell. The shell mold 32 is a separable structure.

In this embodiment, the shell mold 32 is divided into two symmetrically disposed parts, wherein one part is fixedly connected with the driving trolley as a base body, and the other part is rotatably connected with the base body for disassembly. And simultaneously, the sealing performance between the two is ensured. And furthermore, the clamping jaw and the clamping hook are used for realizing fastening and dismounting, and the installation and the form removal are conveniently and quickly realized. And the shell mold 32 is disposed on the driving cart 31. The driving trolley 31 can slide on the guide rail 2; the driving trolley 31 at the most front end is provided with a driving motor. The driving motor adopts a servo motor. So set up, under driving motor's drive, the drive dolly of foremost drives subsequent drive dolly and slowly moves.

And then carry the fashioned shell mould 32 synchronous motion of retarder casing casting through setting up drive dolly 31 to set up driving motor on the drive dolly 31 in the forefront, form the structure of "little train" pulling, through the distance between the single removal two adjacent drive dollies 31, finally realize the circulation removal on the guide rail of oval distribution, and then realized the fashioned continuity of retarder casing casting, improved this casting device's practicality and high efficiency greatly.

The connection and the turning between two adjacent driving trolleys 31 are realized through a connecting rod structure 4; the link structure 4 comprises a plurality of links 41 connected end to end. In this embodiment, the connecting rod structure 4 includes three connecting rods 41 connected end to end, one side of each connecting rod 41 at two ends is respectively connected to two adjacent driving trolleys 31, and the middle connecting rod 41 and the adjacent connecting rods are rotatably connected through a pin 42. So set up, guaranteed that the device cyclic rotation in-process has good mobility, make the distance that single drive dolly removed simultaneously be the length distance that three connecting rods are the straight line, and then guaranteed the fashioned continuity of casting.

Support 1 one side still is equipped with stock solution mechanism 5, and stock solution mechanism 5 includes liquid reserve tank 51, casting pipe 52 and high temperature resistant electromagnetic flowmeter 53. The liquid storage tank 51 is arranged on the support 1, and a heating resistance wire is arranged in the liquid storage tank to keep the circulation and the mobility of the stored liquid to be cast, so that the solidification phenomenon is prevented. The casting pipe 52 is obliquely arranged at the liquid storage tank 51, the output end of the casting pipe faces the center of the shell mold 32, and the input end of the casting pipe 52 is positioned at the bottom of the liquid storage tank 51; and a switch valve is arranged at the joint of the two, so that automatic control can be realized through an external control button. The high-temperature resistant electromagnetic flowmeter 53 is arranged on the casting pipe 52; the flow of the casting liquid is calculated, the high-temperature-resistant electromagnetic flowmeter 53 is connected with the switch valve, and the switch valve is closed when the calculated value set by the use amount of a single speed reducer shell is reached, so that the circulation is performed.

Further through setting up liquid reserve tank 51, the cooperation of casting pipe 52 and high temperature resistant electromagnetic flowmeter 53, and the position sensor who sets up on the cooperation liquid reserve tank, whether perception drive dolly reachs the assigned position, and then under the effect of ooff valve, open the casting and mix the liquid, enter into the shell mould through the casting pipe in, and the control of liquid flow is realized to the high temperature resistant electromagnetic flowmeter who sets up on through the casting pipe, finally realized the uniformity control to the gear reducer shell body size matching casting volume, the automated production efficiency of the device has been improved, the scald phenomenon because of high temperature liquid causes the staff has been avoided.

The support 1 is further provided with a cooling mechanism 6, the cooling mechanism 6 is configured to start cooling to a preset first temperature when the cast driving trolley 31 reaches a preset first position, and then start cooling to a preset second temperature when the driving trolley continues to move to a preset second position, and the distance between the initial position and the preset second position is kept twice as long as the distance between the initial position and the preset first position. The device realizes the first cooling of a small part of water bath and the second cooling of a large part of air flow, and further realizes the purpose of staged and stepped cooling of the device.

The cooling mechanism 6 is provided in front of the traveling direction of the drive carriage 31, and includes a first cooling structure 61 and a second cooling structure 62. The first cooling structure 61 includes a water storage tank 71, a water pump 72, and a high pressure nozzle 73. The two water storage tanks 71 are respectively arranged at two sides of the bracket 1. A water pump 72 is provided in each water storage tank 71. The high pressure spray head 73 is connected to the water pump 72 through a pipe and has an output end directed toward the shell mold 32. The first cooling structure 61 further comprises a resting recovery tank 74; a filtering hole is also provided on the support plate 11 at a position corresponding to the stationary recovery tank 74 for recovering the jetted water stream. The standing recovery box 74 has an upward opening and is arranged at the lower end of the bracket 1, and the position corresponds to the water storage tank 71. So set up, realized the preliminary cooling of spraying the water bath.

The second cooling structure 62 includes a temperature decrease chamber 81, a condensation duct 82, and a fan 83; the cooling chambers 81 are distributed left and right, and the left and right side walls are respectively provided with an inlet 84 and an outlet 85; the two condenser pipes 82 are symmetrically arranged in the front and rear side walls of the cooling chamber 81; the fan 83 is disposed outside the condensation pipe 82 and connected to a sidewall of the cooling chamber 81. The inlet 84 and the outlet 85 of the cooling chamber 81 are provided with shielding curtains 86 to ensure the cooling temperature in the cooling chamber 81. In the initial position, the distance between the first cooling structure 61 and the second cooling structure 62 is equal to the linear length of the connecting rod arrangement 4. Due to the arrangement, the final orderly cooling of the shell forming of the speed reducer in the shell mold is realized, and the temperature of the cooling chamber is kept at 5-10 ℃; staying in a cooling room for 1-2 min.

The working process is as follows:

as shown in fig. 1: in the initial state, the adjacent driving carriages 31 are connected through the connecting rod 41, and the driving carriage 31 at the foremost end is positioned at the position of the casting pipe 52 of the liquid storage tank 51, so that the feeding port reserved at the center of the shell mold 32 is aligned with the output end of the casting pipe 52.

Then, the switch valve of the liquid storage tank 51 is opened, the mixed liquid to be cast enters the shell mold 32 through the casting pipe 52, the control of the liquid flow is realized through the high-temperature resistant electromagnetic flowmeter 53 arranged on the casting pipe 52, the consistency control of the size matching casting amount of the speed reducer shell is finally realized, and the automatic production efficiency of the device is improved.

When the cast driving carriage 31 reaches the predetermined first position, i.e. moves to the position of the first cooling structure 61, i.e. moves a distance of the connecting rod 41 in a straight line state. The foremost drive carriage 31 is now located at the first cooling structure 61 and the next drive carriage 31 is moved to the location of the reservoir 51. Then, the water pump 72 is started to spray water to the shell mold 32 through the high-pressure nozzle 73, and the water bath cooling is realized to a preset first temperature, namely, the preliminary cooling operation.

When the driving carriage 31 at the front end further moves to the preset second position, i.e. the position of the second cooling structure 62,

at this time, after the casting operation is completed, the adjacent driving trolley 31 moves to the first cooling structure 61 to start the preliminary cooling operation. While at the same time the third drive carriage 31 moves to the position of the reservoir 51 to await casting, and so on. In the cooling chamber 81, the circulating air flow starts to cool the shell mold 32 to a preset second temperature, i.e., a molding temperature, by the cooperation of the condensation pipe 82 and the fan 83.

And the distance between the initial position and the preset second position is kept twice as long as the distance between the initial position and the preset first position, so that the purposes of cooling by a small part of water bath and cooling by a large part of air current are realized, the purpose of cooling by the device in stages and in a step shape is realized, the quality of the cast mixed liquid during molding is further ensured, and the phenomenon that a gap or a crack occurs due to overlarge local stress caused by linear cooling is avoided. And then realized the continuity of reduction gear casing casting shaping, improved this casting device's practicality and high efficiency greatly.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous casting device for a speed reducer housing is characterized in that: the device comprises brackets (1), wherein the brackets (1) are horizontally distributed, and the upper end surfaces of the brackets (1) are provided with guide rails (2) which are distributed in an oval shape; a plurality of groups of casting mold mechanisms (3) distributed at intervals are arranged on the guide rail (2); each group of the casting mold mechanisms (3) comprises a driving trolley (31) and a shell mold (32) for casting and molding the shell of the speed reducer; the shell mold (32) is of a separable structure and is arranged on the driving trolley (31); the driving trolley (31) can slide on the guide rail (2); a driving motor is arranged on the driving trolley (31) at the foremost end; two adjacent driving trolleys (31) are connected and turned through a connecting rod structure (4); a liquid storage mechanism (5) is further arranged on one side of the support (1), and the liquid storage mechanism (5) comprises a liquid storage tank (51), a casting pipe (52) and a high-temperature-resistant electromagnetic flowmeter (53); the liquid storage tank (51) is arranged on the bracket (1) and internally provided with a heating resistance wire to keep the stored liquid flowing; the casting pipe (52) is obliquely arranged at the center of the liquid storage tank (51) and the output end of the liquid storage tank faces the shell mold (32), a switch valve is arranged at the joint of the liquid storage tank and the shell mold, and the high-temperature-resistant electromagnetic flowmeter (53) is arranged on the casting pipe (52); the support (1) is further provided with a cooling mechanism (6), the cooling mechanism (6) is configured to start to cool to a preset first temperature when the cast driving trolley (31) reaches a preset first position, and then start to cool to a preset second temperature when the casting driving trolley continues to move to a preset second position, and the distance between the initial position and the preset second position is kept twice as long as the distance between the initial position and the preset first position.

2. The continuous casting apparatus for a reducer case according to claim 1, wherein: the cooling mechanism (6) is arranged in front of the driving trolley (31) in the advancing direction; and comprising a first cooling structure (61) and a second cooling structure (62); the first cooling structure (61) comprises a water storage tank (71), a water pump (72) and a high-pressure spray head (73); the two water storage tanks (71) are respectively arranged on two sides of the bracket (1); the water pump (72) is arranged in each water storage tank (71); the high-pressure spray head (73) is connected with the water pump (72) through a pipeline, and the output end of the high-pressure spray head faces the shell mold (32).

3. The continuous casting apparatus for a reducer case according to claim 2, wherein: the second cooling structure (62) comprises a temperature reduction chamber (81), a condensation pipe (82) and a fan (83); the cooling chambers (81) are distributed left and right, and the left side wall and the right side wall are respectively provided with an inlet (84) and an outlet (85); the two condensation pipes (82) are symmetrically arranged in the front side wall and the rear side wall of the cooling chamber (81); the fan (83) is arranged on the outer side of the condensation pipe (82) and connected with the side wall of the cooling chamber (81).

4. The continuous casting apparatus for a reducer case according to claim 3, wherein: the first cooling structure (61) further comprises a resting recovery tank (74); the opening of the standing recovery box (74) faces upwards and is arranged at the lower end of the support (1), and the position of the standing recovery box corresponds to that of the water storage tank (71).

5. The continuous casting apparatus for a reducer case according to claim 4, wherein: and shielding curtains (86) are arranged at the inlet (84) and the outlet (85) of the cooling chamber (81) to ensure the cooling temperature in the cooling chamber (81).

6. The continuous casting apparatus for a reducer case according to claim 5, wherein: in the initial position, the distance between the first cooling structure (61) and the second cooling structure (62) is equal to the linear length of the connecting rod structure (4).

7. The continuous casting apparatus for a reducer case according to claim 1, wherein: the support (1) comprises a support plate (11) arranged horizontally and support legs (12) arranged below the support plate (11).

8. The continuous casting apparatus for a reducer case according to claim 1, wherein: the connecting rod structure (4) comprises three connecting rods (41) connected end to end, one side of each connecting rod (41) at two ends is connected with two adjacent driving trolleys (31) respectively, and the connecting rods (41) are connected with the adjacent connecting rods (41) in a rotating mode through pin shafts (42) in the middle.