Gearbox front shell mould frame

Abstract

The utility model discloses a gearbox front shell die frame, and belongs to the field of gearbox shell die casting. A gearbox front shell mold frame comprises a water tank, a sleeve is fixedly connected to the interior of the water tank, a piston is slidably connected to the interior of the sleeve, a connecting rod is fixedly connected to the upper surface of the piston, a push plate is fixedly connected to one end of the connecting rod, and a water inlet one-way valve and a water drainage one-way valve are fixedly arranged at one end of the sleeve. A cleaning mechanism is arranged on the surface of the water inlet one-way valve, a lower mold is fixedly connected to the upper surface of the water tank, the inner wall of the lower mold is slidably connected with the surface of the push plate, a spiral pipe is fixedly connected to the interior of the lower mold, and one end of the spiral pipe is fixedly connected with one end of the drainage one-way valve; the other end of the spiral pipe penetrates through the upper surface of the water tank. The cooling device can prevent external impurities from entering the water tank to pollute water quality or prevent the impurities from blocking the interior of the spiral pipe to affect the cooling effect of the interior of the lower die.

Description

Technical Field

[0001] The present application relates to the field of gearbox housing die-casting, and in particular to a gearbox front housing mold frame. Background Art

[0002] The gearbox front shell mold is an indispensable part of the gearbox production process. Its quality and precision directly affect the quality and performance of the gearbox. During the manufacturing process, the gearbox front shell mold needs to be precisely processed and assembled to ensure that its size and precision meet the requirements. At the same time, it also needs to be able to withstand large pressure and temperature changes to adapt to the production and use environment of the gearbox.

[0003] During the die casting process of the gearbox housing, the upper die and the lower die fit closely together to form a closed molding cavity. The liquid metal melt flows into this cavity through the pouring system and solidifies into the required die casting after cooling. However, during the die casting process, the upper die and the lower die sometimes stick together, causing the mold to be unable to open and close normally. This will result in unqualified product appearance and defective products, thereby reducing the quality of die casting.

[0004] In response to the above technical problems, patent number CN218134883U discloses a die-casting mold frame for a gearbox housing, which includes a water tank, a water inlet with a sealing cover is provided on the top of the water tank, a square groove is opened on the top of one side of the water tank, a fixed mold is provided on the top of the water tank, and a water inlet pipe is provided on one side of the fixed mold. The above patent cools the gearbox housing die-cast inside the fixed mold by cold water inside the spiral groove, avoiding the molded parts from sticking to the inside of the fixed mold and the movable mold, thereby achieving the effect of avoiding the effect of adhesion on the production quality during die-casting.

[0005] However, the above technical solution has the following defects:

[0006] 1. The square groove above the water tank is an open design. Therefore, during the actual use process, external impurities may enter the water tank through the square groove, causing impurities to be mixed in the water. When the impurities follow the water flow to the spiral groove, the spiral barrel groove may be blocked and the subsequent water inlet may be affected, resulting in the problem of being unable to cool the casting. Utility Model Content

[0007] One purpose of the present application is to prevent the spiral tube from being blocked due to impurities mixed in the water tank, thereby affecting the cooling effect of the casting inside the fixed mold.

[0008] To achieve the above objectives, the technical solution adopted in the present application is: a gearbox front shell mold frame, including a water tank, a sleeve fixedly connected to the interior of the water tank, a piston slidably connected to the interior of the sleeve, a connecting rod fixedly connected to the upper surface of the piston, one end of the connecting rod fixedly connected to a push plate, an inlet check valve and a drain check valve fixedly provided at one end of the sleeve, and the inlet check valve and the drain check valve are symmetrically arranged, a cleaning mechanism is provided on the surface of the inlet check valve, a lower mold is fixedly connected to the upper surface of the water tank, and the inner wall of the lower mold is slidably connected to the surface of the push plate, a spiral tube is fixedly connected to the interior of the lower mold, and one end of the spiral tube is fixedly connected to one end of the drain check valve, the other end of the spiral tube passes through the upper surface of the water tank and extends to the interior of the water tank, and a movable mold mechanism is provided on the upper surface of the water tank.

[0009] Preferably, the movable mold mechanism includes support rods fixedly connected to the four corners of the water tank, one end of the four support rods is fixedly connected to a support plate, the upper surface of the support plate is fixedly connected to a hydraulic cylinder, the telescopic end of the hydraulic cylinder is fixedly connected to a movable plate, and the interior of the movable plate is slidably connected to the surface of the support plate.

[0010] Preferably, a buffer block is slidably connected to the surface of the support rod, and a first spring is fixedly connected between the lower surface of the buffer block and the upper surface of the water tank.

[0011] Preferably, the cleaning mechanism includes a water inlet pipe fixedly arranged on the lower surface of the water inlet one-way valve, a filter is fixedly connected to the interior of the water inlet pipe, a rotating rod is rotatably connected to the upper surface of the water inlet one-way valve, one end of the rotating rod is fixedly connected to a scraper, and one end of the scraper is in contact with one end of the filter.

[0012] Preferably, the other end of the rotating rod is fixedly connected to a rotating disk, one end of the rotating disk is rotatably connected to a first connecting rod, the other end of the first connecting rod is rotatably connected to a moving rod, and the other end of the moving rod is slidably connected to the outer wall of the sleeve, a third spring is fixedly connected between the surface of the moving rod and the surface of the sleeve, one end of the moving rod is in contact with the surface of the connecting rod, and a plurality of protrusions are fixedly connected to the surface of the connecting rod.

[0013] Preferably, a second connecting rod is symmetrically rotatably arranged on the lower surface of the push plate, the other end of the second connecting rod is rotatably connected to a slider, the interior of the lower mold is fixedly connected to a sliding rod, and the surface of the sliding rod is slidably connected to the interior of the slider, and a second spring is fixedly connected between the two sliders.

[0014] Preferably, a liquid level gauge is fixedly provided on the surface of the water tank, and a water filling valve is fixedly provided on the upper surface of the water tank.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] 1. The push plate is pushed down through the upper die to enter the lower die, and the push plate drives the piston at one end of the connecting rod to descend. The piston descends inside the sleeve, so that the drainage one-way valve is opened, that is, the water in the water tank can be sent to the inside of the spiral tube. The spiral tube can cool the lower die, and the push plate rises, the connecting rod drives the piston to reset, and the water inlet one-way valve is opened, so that the water in the water tank enters the inside of the sleeve to facilitate subsequent delivery to the spiral tube, which can be used to cool the gearbox housing die-casted inside the lower die to avoid the moldings from bonding to the inside of the lower die and the upper die, thereby achieving the effect of avoiding the bonding during die casting and affecting the quality. At the same time, the water tank is sealed to prevent external impurities from entering the water tank, causing water pollution or impurities blocking the inside of the spiral tube and affecting the cooling effect on the inside of the lower die.

[0017] 2 When the connecting rod moves, the connecting rod drives the protrusion to move, and the protrusion squeezes the moving rod to slide outside the sleeve. The moving rod pushes the turntable to rotate through the connecting rod, and the turntable drives the rotating rod to rotate. The rotating rod can drive the scraper to clean the impurities on the surface of the filter to prevent the filter from being blocked by impurities inside the water tank, which causes the problem of being unable to cool the water inside the spiral tube and the die-cast gearbox housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a gearbox front shell mold frame proposed by the utility model;

[0019] Figure 2 This is a cross-sectional view of the internal structure of a gearbox front shell mold frame proposed by the utility model;

[0020] Figure 3 A gearbox front shell mold frame proposed by the utility model Figure 2 Enlarged view of part A;

[0021] Figure 4 This is a structural schematic diagram of a sleeve of a gearbox front shell mold frame proposed by the utility model;

[0022] Figure 5 A gearbox front shell mold frame proposed by the utility model Figure 4 Enlarged view of part B;

[0023] Figure 6 The utility model is a schematic structural diagram of a water inlet check valve of a transmission front housing mold frame.

[0024] In the figure: 1, water tank; 11, liquid level gauge; 12, water filling valve; 2, support rod; 21, buffer block; 22, first spring; 3, support plate; 31, hydraulic cylinder; 32, moving plate; 33, upper mold; 4, lower mold; 5, sleeve; 51, water inlet check valve; 52, water outlet check valve; 53, connecting rod; 54, piston; 55, protrusion; 56, moving rod; 57, first connecting rod; 58, rotating rod; 59, rotating disk; 510, water inlet pipe; 511, filter screen; 512, scraper; 513, third spring; 6, spiral tube; 7, push plate; 71, second connecting rod; 72, slide rod; 73, slider; 74, second spring. DETAILED DESCRIPTION

[0025] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0028] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0029] The prior art has the following defects:

[0030] 1 Since the square groove above the water tank in the prior art is an open design, during the specific use process, foreign impurities may enter the interior of the water tank through the square groove, so that the water is mixed with impurities. Therefore, when the impurities follow the water flow to the spiral groove, the spiral barrel groove may be blocked and the subsequent water inflow may be affected, resulting in the problem that the casting cannot be cooled.

[0031] As an improvement, Figure 1-Figure 2 As shown, the preferred embodiments of the present application are:

[0032] A gearbox front shell mold frame includes a water tank 1, a sleeve 5 is fixedly connected to the inside of the water tank 1, a piston 54 is slidably connected to the inside of the sleeve 5, a connecting rod 53 is fixedly connected to the upper surface of the piston 54, one end of the connecting rod 53 is fixedly connected to a push plate 7, an end of the sleeve 5 is fixedly provided with an inlet check valve 51 and a drain check valve 52, and the inlet check valve 51 and the drain check valve 52 are symmetrically arranged, a cleaning mechanism is provided on the surface of the inlet check valve 51, a lower mold 4 is fixedly connected to the upper surface of the water tank 1, and the inner wall of the lower mold 4 is slidably connected to the surface of the push plate 7, a spiral tube 6 is fixedly connected to the inside of the lower mold 4, and one end of the spiral tube 6 is fixedly connected to one end of the drain check valve 52, the other end of the spiral tube 6 passes through the upper surface of the water tank 1 and extends to the inside of the water tank 1, and a movable mold mechanism is provided on the upper surface of the water tank 1.

[0033] Specifically, in the initial state, both the water tank 1 and the sleeve 5 contain water. When in use, the movable mold mechanism is driven to descend, and the movable mold mechanism enters the interior of the lower mold 4 and squeezes the push plate 7 to descend. The push plate 7 drives the connecting rod 53 to descend, and the connecting rod 53 drives the piston 54 to slide downward in the sleeve 5. At this time, the drainage check valve 52 is opened, and the piston 54 squeezes the internal water of the sleeve 5 to enter the interior of the spiral tube 6 through the drainage check valve 52. The spiral tube 6 is arranged in the interior of the lower mold 4, that is, the gearbox housing die-casted in the lower mold 4 can be cooled. When the movable mold mechanism rises, the push plate 7 is driven to rise and drive the connecting rod 53 to reset. The connecting rod 53 drives the piston 54 to slide upward in the sleeve 5, so that the water inlet check valve 51 is opened, and the water in the water tank 1 can enter the interior of the sleeve 5 through the water inlet check valve 51 for storage;

[0034] The die-cast parts can be prevented from adhering to the inside of the lower mold 4 and the upper mold 33, thereby achieving the effect of avoiding the influence of adhesion on the production quality during die-casting. At the same time, the water tank 1 is sealed to prevent external impurities from entering the water tank 1, causing water pollution or impurities clogging the inside of the spiral tube 6.

[0035] like Figure 1 and Figure 2 As shown, in this embodiment, the movable mold mechanism includes support rods 2 fixedly connected to the four corners of the water tank 1, one end of the four support rods 2 is fixedly connected to a support plate 3, the upper surface of the support plate 3 is fixedly connected to a hydraulic cylinder 31, the telescopic end of the hydraulic cylinder 31 is fixedly connected to a moving plate 32, and the interior of the moving plate 32 is slidably connected to the surface of the support plate 3.

[0036] Specifically, the hydraulic cylinder 31 is driven to work, and the telescopic end of the hydraulic cylinder 31 drives the moving plate 32 to slide downward on the surface of the support rod 2. The moving plate 32 can drive the upper mold 33 below it to enter the interior of the lower mold 4 to complete the casting work.

[0037] like Figure 1 and Figure 2 As shown, in this embodiment, a buffer block 21 is slidably connected to the surface of the support rod 2 , and a first spring 22 is fixedly connected between the lower surface of the buffer block 21 and the upper surface of the water tank 1 .

[0038] Specifically, the moving plate 32 slides downward to contact the buffer block 21 and pushes the buffer block 21 to continue to descend. The buffer block 21 can squeeze the first spring 22 to buffer the moving plate 32 .

[0039] like Figures 4 to 6 As shown, in this embodiment, the cleaning mechanism includes a water inlet pipe 510 fixedly arranged on the lower surface of the water inlet check valve 51, and a filter screen 511 is fixedly connected to the interior of the water inlet pipe 510. A rotating rod 58 is rotatably connected to the upper surface of the water inlet check valve 51, and one end of the rotating rod 58 is fixedly connected to a scraper 512, and one end of the scraper 512 is in contact with one end of the filter screen 511.

[0040] Specifically, when there are impurities inside the water tank 1, the water inlet check valve 51 may be blocked, thereby affecting the water inlet into the spiral tube 6. Therefore, when the present device is in use, the water inlet check valve 51 takes in water through the water inlet pipe 510, and the impurities in the water can be filtered through the filter 511, so that the impurities adhere to the surface of the filter 511. In order to avoid clogging of the filter 511, the filter 511 can be cleaned by rotating the scraper 512.

[0041] like Figure 4 and Figure 5 As shown, in this embodiment, the other end of the rotating rod 58 is fixedly connected to the rotating disk 59, one end of the rotating disk 59 is rotatably connected to the first connecting rod 57, the other end of the first connecting rod 57 is rotatably connected to the moving rod 56, and the other end of the moving rod 56 is slidably connected to the outer wall of the sleeve 5, a third spring 513 is fixedly connected between the surface of the moving rod 56 and the surface of the sleeve 5, one end of the moving rod 56 is in contact with the surface of the connecting rod 53, and a plurality of protrusions 55 are fixedly connected to the surface of the connecting rod 53.

[0042] Specifically, when the push plate 7 drives the connecting rod 53 to move, the connecting rod 53 drives the protrusion 55 to move, and the protrusion 55 squeezes one end of the moving rod 56, so that one end of the moving rod 56 slides toward the outer wall of the sleeve 5 and stretches the third spring 513, and the moving rod 56 moves and pushes the first connecting rod 57 to rotate, and the first connecting rod 57 drives the turntable 59 to rotate, and the turntable 59 drives the rotating rod 58 to rotate, and the rotating rod 58 can drive the scraper 512 to rotate to clean the filter 511. When the protrusion 55 cancels the squeezing of the moving rod 56, the third spring 513 drives the moving rod 56 to reset, and finally the rotating rod 58 drives the scraper 512 to reset, and the above operation is repeated to realize the reciprocating rotation of the scraper 512 to clean the filter 511.

[0043] like Figure 3 As shown, in this embodiment, a second connecting rod 71 is symmetrically rotatably provided on the lower surface of the push plate 7, and the other end of the second connecting rod 71 is rotatably connected to a slider 73, a sliding rod 72 is fixedly connected to the interior of the lower mold 4, and the surface of the sliding rod 72 is slidably connected to the interior of the slider 73, and a second spring 74 is fixedly connected between the two sliders 73.

[0044] Specifically, when the upper mold 33 moves downward and squeezes the push plate 7 to slide downward, the push plate 7 squeezes the second connecting rod 71 to rotate, and the second connecting rod 71 pushes the two sliders 73 to approach each other on the surface of the slide rod 72. At the same time, the two sliders 73 squeeze the second spring 74. When the upper mold 33 moves upward, the second spring 74 is reset, and finally the push plate 7 can be driven to move upward, that is, the cast gearbox front shell can be pushed out.

[0045] like Figure 1 and Figure 2 As shown, in this embodiment, a liquid level gauge 11 is fixedly provided on the surface of the water tank 1 , and a water filling valve 12 is fixedly provided on the upper surface of the water tank 1 .

[0046] Specifically, when the water level inside the water tank 1 drops, the water level can be observed through the liquid level gauge 11. At this time, the water filling valve 12 can be opened and water can be poured into the water filling valve 12 to add water to the inside of the water tank 1.

[0047] The working principle of the present application is as follows: in the initial state of the present device, the water tank 1 and the sleeve 5 both contain water. When in use, the hydraulic cylinder 31 is driven to work, and the telescopic end of the hydraulic cylinder 31 drives the movable plate 32 to slide downward on the surface of the support rod 2. The movable plate 32 can drive the upper mold 33 below it to enter the interior of the lower mold 4, and squeeze the push plate 7 to slide downward. The push plate 7 squeezes the second connecting rod 71 to rotate, and the second connecting rod 71 pushes the two sliders 73 to approach each other on the surface of the slide rod 72. At the same time, the two sliders 73 squeeze the second spring 74, and the push plate 7 drives the connecting rod 53 to descend. The connecting rod 53 The piston 54 is driven to slide downward inside the sleeve 5. At this time, the drainage check valve 52 is opened, and the piston 54 squeezes the internal water of the sleeve 5 to enter the interior of the spiral tube 6 through the drainage check valve 52. The spiral tube 6 is arranged inside the lower mold 4, that is, the gearbox housing die-cast inside the lower mold 4 can be cooled. When the push plate 7 drives the connecting rod 53 to move, the connecting rod 53 drives the protrusion 55 to move, and the protrusion 55 squeezes one end of the moving rod 56, so that one end of the moving rod 56 slides toward the outer wall of the sleeve 5 and stretches the third spring 513, and the moving rod 56 moves and pushes the first connecting rod 57 rotates, the first connecting rod 57 drives the rotating disk 59 to rotate, the rotating disk 59 drives the rotating rod 58 to rotate, and the rotating rod 58 can drive the scraper 512 to rotate to clean the filter screen 511. When the protrusion 55 cancels the squeezing of the moving rod 56, the third spring 513 drives the moving rod 56 to reset, and finally the rotating rod 58 drives the scraper 512 to reset. Repeat the above operation to realize the reciprocating rotation of the scraper 512 to clean the filter screen 511. When the upper mold 33 moves upward, the second spring 74 resets, and finally the push plate 7 can be driven to move upward, that is, the casting can be The completed gearbox front shell is pushed out, and the push plate 7 is driven to rise and drive the connecting rod 53 to reset. The connecting rod 53 drives the piston 54 to slide upward inside the sleeve 5, so that the water inlet check valve 51 is opened, and the water inlet check valve 51 is filled with water through the water inlet pipe 510. Impurities in the water can be filtered through the filter screen 511, so that the impurities are attached to the surface of the filter screen 511, and the water in the water tank 1 enters the interior of the sleeve 5 through the water inlet check valve 51 for storage. At the same time, when the connecting rod 53 moves downward, it continues to drive the scraper 512 to rotate to clean the impurities on the surface of the filter screen 511.

[0048] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A gearbox front housing mold frame, including a water tank, characterized in that: A sleeve is fixedly connected to the interior of the water tank, a piston is slidably connected to the interior of the sleeve, a connecting rod is fixedly connected to the upper surface of the piston, one end of the connecting rod is fixedly connected to a push plate, an inlet check valve and a drain check valve are fixedly provided at one end of the sleeve, and the inlet check valve and the drain check valve are symmetrically provided, a cleaning mechanism is provided on the surface of the inlet check valve, a lower mold is fixedly connected to the upper surface of the water tank, and the inner wall of the lower mold is slidably connected to the surface of the push plate, a spiral tube is fixedly connected to the interior of the lower mold, and one end of the spiral tube is fixedly connected to one end of the drain check valve, the other end of the spiral tube passes through the upper surface of the water tank and extends to the interior of the water tank, and a movable mold mechanism is provided on the upper surface of the water tank.

2. A gearbox front housing mold frame as claimed in claim 1, characterized in that: The movable mold mechanism includes support rods fixedly connected to the four corners of the water tank, one end of the four support rods is fixedly connected to a support plate, the upper surface of the support plate is fixedly connected to a hydraulic cylinder, the telescopic end of the hydraulic cylinder is fixedly connected to a moving plate, and the interior of the moving plate is slidably connected to the surface of the support plate.

3. A gearbox front shell mold frame as claimed in claim 2, characterized in that: A buffer block is slidably connected to the surface of the support rod, and a first spring is fixedly connected between the lower surface of the buffer block and the upper surface of the water tank.

4. A gearbox front housing mold frame as claimed in claim 1, characterized in that: The cleaning mechanism includes a water inlet pipe fixedly arranged on the lower surface of the water inlet one-way valve, a filter screen is fixedly connected to the inside of the water inlet pipe, a rotating rod is rotatably connected to the upper surface of the water inlet one-way valve, one end of the rotating rod is fixedly connected to a scraper, and one end of the scraper is in contact with one end of the filter screen.

5. A gearbox front housing mold frame as claimed in claim 4, characterized in that: The other end of the rotating rod is fixedly connected to a rotating disk, one end of the rotating disk is rotatably connected to a first connecting rod, the other end of the first connecting rod is rotatably connected to a moving rod, and the other end of the moving rod is slidably connected to the outer wall of the sleeve, a third spring is fixedly connected between the surface of the moving rod and the surface of the sleeve, one end of the moving rod is in contact with the surface of the connecting rod, and a plurality of protrusions are fixedly connected to the surface of the connecting rod.

6. A gearbox front housing mold frame as claimed in claim 1, characterized in that: A second connecting rod is symmetrically rotatably arranged on the lower surface of the push plate, and the other end of the second connecting rod is rotatably connected to a slider. A sliding rod is fixedly connected to the interior of the lower mold, and the surface of the sliding rod is slidably connected to the interior of the slider, and a second spring is fixedly connected between the two sliders.

7. A gearbox front housing mold frame as claimed in claim 1, characterized in that: A liquid level gauge is fixedly arranged on the surface of the water tank, and a water filling valve is fixedly arranged on the upper surface of the water tank.

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