Automatic lifting and positioning mechanism for kiln car

Abstract

The utility model relates to the technical field of kiln mechanical equipment, especially for kiln car loading and unloading automatic lifting positioning mechanism, including base, the top of base swing joint has the lifting assembly, the top swing joint of lifting assembly has the platform, the platform is inside hollow cavity structure, the inside installation of platform has the positioning assembly, the inside installation of platform has the clamping assembly, one side of the top of platform is equipped with hydraulic control mechanism, the top of platform is equipped with the rail in the symmetry distribution, one side of the outside of platform is equipped with the slide rail, one side of the outside of positioning assembly is equipped with the positioning hole, the bottom of base all installs the self -lock type universal wheel in four corners. The device can carry out the stable loading and unloading operation of kiln car of kiln, and can guarantee reliable operation in the loading and unloading process, positioning, lifting, clamping operation mechanism interlock, guarantee safety, two standard oil cylinders can complete four point positioning, and the cost is lower, and the practicality is promoted.

Description

Technical Field

[0001] This utility model relates to the field of kiln machinery and equipment technology, specifically to an automatic lifting and positioning mechanism for loading and unloading kiln cars. Background Technology

[0002] Kiln loading and unloading vehicles are specialized equipment used for the automated loading and unloading of materials (such as ceramics, bricks, tiles, and metallurgical products) during kiln production. They are primarily used to feed unfired blanks into the kiln (loading) or to remove fired products from the kiln (unloading). Their core function is to replace manual operation, achieving efficient, precise, and safe material transfer in high-temperature, high-dust environments, and are an important component of automated kiln production lines.

[0003] Chinese utility model patent CN221764208U discloses a kiln loading and unloading vehicle, which includes: "raising the support rod of the auxiliary trailer (left) to the same height as the support rod of the main trailer (right); tying the pull rope on the right side to the end of the crossbeam; pushing the two crossbeams into the kiln from the right side and out of the kiln, so that the two ends of the crossbeams are supported by the support rods; untying the pull rope; passing the end of the pull rope through the pull hole and tying it to the pull rod; placing the pull rod on the upper end of the two crossbeams, with the positioning plate attached to the side wall of the crossbeam; and starting the vehicle simultaneously." The hydraulic cylinders of the auxiliary trolley (left) and the main trolley (right) raise the support rod to lift the kiln furniture. The winch on the right is started to wind the pull rope. The pull rope pulls the pull rod to move along the crossbeam. The pull rod is at the bottom end of the kiln furniture. At this time, the pull rod and the winch are located on both sides of the kiln furniture. The pull rope pulls the kiln furniture slowly out of the kiln along the crossbeam through the pull rod. The kiln furniture is then removed from the crossbeam by a forklift. However, the loading and unloading mechanism of this device is complicated, and the kiln car may shake when getting on and off, which is not conducive to the safety of personnel and equipment. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic lifting and positioning mechanism for loading and unloading kiln cars, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic lifting and positioning mechanism for loading and unloading kiln cars, comprising a base, a lifting assembly movably connected to the top of the base, a platform movably connected to the top of the lifting assembly, the platform having an internal hollow cavity structure, a positioning assembly installed inside the platform, a clamping assembly installed inside the platform, a hydraulic control mechanism provided on one side of the top of the platform, symmetrical railings distributed on the top of the platform, a slide rail provided on one side of the outer side of the platform, a positioning hole provided on one side of the outer side of the positioning assembly, and self-locking casters installed at the four corners of the bottom of the base;

[0006] The positioning component includes a first hydraulic cylinder, one end of which is movably sleeved with a first piston rod, and one end of the first piston rod passes through one side of the platform and is movably connected to a positioner. The first hydraulic cylinder, the first piston rod, and the positioner are symmetrically distributed about the horizontal center line of the platform.

[0007] The clamping assembly includes a second hydraulic cylinder, one end of which is movably sleeved with a second piston rod, and one end of the second piston rod is movably connected to a clamping device. The inner wall of the clamping device is rotatably connected to the outer wall of the support member, and the platform has a slot above the clamping device.

[0008] The beneficial effects of this utility model are: it can perform positioning and clamping operations for loading and unloading kiln cars, thereby ensuring the stable operation and accurate positioning of kiln cars during the loading and unloading process, and at a low cost.

[0009] To achieve clamping and securing of the kiln cars parked on the elevator:

[0010] The clamping device is further configured such that it is boomerang-shaped, and the second hydraulic cylinder, the second piston rod, the clamping device, and the support are symmetrically distributed about the horizontal center line of the platform.

[0011] By adopting the above technical solution, the parked kiln car can be clamped at four points, so that the kiln car can be placed stably without displacement during the lifting and lowering process.

[0012] To enable the kiln car to be raised and lowered:

[0013] The lifting assembly is further configured such that: the lifting assembly includes a servo motor, and one end of the output shaft of the servo motor passes through one side of the second support column and is rotatably connected to a lead screw; the two ends of the lead screw are respectively rotatably connected to the opposite sides of the two second support columns; and a movable part is threadedly connected to the outer wall of the lead screw; a push rod is movably sleeved on the inner wall of the movable part; and the two ends of the push rod are respectively movably connected to one side of the two scissor telescopic devices.

[0014] By adopting the above technical solution, and using the combined use of scissor-type expansion joints, lead screws, and motors, precise lifting and lowering operations can be performed as needed, thereby making four-point positioning more accurate.

[0015] To enable the control system to control both lifting and clamping / fixing operations:

[0016] The hydraulic control mechanism is further configured to be electrically connected to the servo motor, and electrically connected to the first hydraulic cylinder and the second hydraulic cylinder respectively, and the inner diameter of the positioning hole is consistent with the outer diameter of the positioner.

[0017] By adopting the above technical solutions, the positioning, lifting, and clamping mechanisms can be interlocked, ensuring safe and reliable operation.

[0018] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main view of this utility model;

[0020] Figure 2 This is a schematic diagram of the lifting component of this utility model;

[0021] Figure 3 This is a schematic diagram of the positioning component and clamping component of this utility model.

[0022] In the diagram: 1. Base; 2. Lifting assembly; 201. Servo motor; 202. Second support column; 203. Lead screw; 204. Moving part; 205. Push rod; 206. Scissor telescopic device; 3. Platform; 4. Positioning assembly; 401. First hydraulic cylinder; 402. First piston rod; 403. Positioner; 5. Clamping assembly; 501. Second hydraulic cylinder; 502. Second piston rod; 503. Clamper; 504. Support component; 505. Slot; 6. Hydraulic control mechanism; 7. Fence; 8. Slide rail; 9. Positioning hole; 10. Self-locking caster wheel. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0024] Please see Figures 1 to 3 The automatic lifting and positioning mechanism for loading and unloading kiln cars includes a base 1, a lifting assembly 2 movably connected to the top of the base 1, a platform 3 movably connected to the top of the lifting assembly 2, the platform 3 having an internal hollow cavity structure, a positioning assembly 4 installed inside the platform 3, a clamping assembly 5 installed inside the platform 3, a hydraulic control mechanism 6 on one side of the top of the platform 3, railings 7 symmetrically distributed on the top of the platform 3, a slide rail 8 on one side of the outside of the platform 3, a positioning hole 9 on one side of the outside of the positioning assembly 4, and self-locking casters 10 installed at the four corners of the bottom of the base 1.

[0025] The positioning component 4 includes a first hydraulic cylinder 401, one end of which is movably sleeved with a first piston rod 402, and one end of the first piston rod 402 passes through one side of the platform 3 and is movably connected to a positioner 403. The first hydraulic cylinder 401, the first piston rod 402 and the positioner 403 are symmetrically distributed about the horizontal center line of the platform 3.

[0026] The clamping assembly 5 includes a second hydraulic cylinder 501, one end of which is movably sleeved with a second piston rod 502, and one end of the second piston rod 502 is movably connected to a clamping device 503. The inner wall of the clamping device 503 is rotatably connected to the outer wall of the support member 504, and the platform 3 has a slot 505 above the clamping device 503.

[0027] In this embodiment, as Figure 3 As shown, the clamp 503 is boomerang-shaped, and the second hydraulic cylinder 501, the second piston rod 502, the clamp 503 and the support member 504 are symmetrically distributed about the horizontal center line of the platform 3.

[0028] In this embodiment, as Figure 2 As shown, the lifting assembly 2 includes a servo motor 201, and one end of the output shaft of the servo motor 201 passes through one side of the second support column 202 and is rotatably connected to a lead screw 203. The two ends of the lead screw 203 are rotatably connected to the opposite sides of the two second support columns 202, and a moving part 204 is threadedly connected to the outer wall of the lead screw 203. A push rod 205 is movably sleeved on the inner wall of the moving part 204, and the two ends of the push rod 205 are movably connected to one side of the two scissor telescopic devices 206.

[0029] In this embodiment, as Figure 1 and Figure 3 As shown, the hydraulic control mechanism 6 is electrically connected to the servo motor 201, and the hydraulic control mechanism 6 is electrically connected to the first hydraulic cylinder 401 and the second hydraulic cylinder 501 respectively. The inner diameter of the positioning hole 9 is consistent with the outer diameter of the positioner 403.

[0030] The automatic lifting and positioning mechanism for loading and unloading kiln cars operates as follows:

[0031] First, move the self-locking caster wheel 10 to the work area. The self-locking caster wheel 10 includes a mounting base, bolts, nuts, support legs, and casters. By rotating the bolts, the support legs can be moved downwards, allowing them to contact the ground and continue moving until the casters leave the ground. Then, tighten the nuts to ensure the transfer mechanism is placed stably. When moving, rotating the bolts can move the support legs upwards, allowing them to move away from the ground and continue moving until the casters contact the ground again. Then, tighten the nuts. By starting the servo motor 201 (model: HGKR43JK), the lead screw 203 will rotate, thereby driving the push rod 205 connected to the moving part 204 to move. This causes the movable end of the scissor telescopic device 206 to move horizontally around the fixed end, allowing the elevator to rise until it is level with the rails. Then, the limit switch is in place, and the elevator stops rising. Pumping hydraulic oil into the first hydraulic cylinder 401 will push the first piston rod 402 to move. The first piston rod 402 will drive the positioner 403 to extend out of the platform 3, and make multiple first piston rods 402 move and engage with multiple positioning holes 9, thereby completing the positioning operation. The hydraulic control mechanism 6 displays "positioning extended in place". At this time, the elevator will not shake or sink.

[0032] After the elevator is positioned, the automatic trolley device (model: YC-5T) pushes the kiln car onto platform 3. Once the automatic trolley device (model: YC-5T) leaves the elevator, hydraulic oil is pumped into the second hydraulic cylinder 501, which pushes the second piston rod 502. The second piston rod 502 then drives the clamping device 503 to rotate around the support member 504, causing one end of the clamping device 503 to extend out of the slot 505, thereby clamping the kiln car. After the hydraulic control mechanism 6 displays "Clamping in place," the first hydraulic cylinder 401 can be operated to retract the first piston rod 402. The lowering operation can only proceed after the hydraulic control mechanism 6 displays "Positioning retraction in place." Once the kiln car is in position, loading and unloading can begin.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A kiln car loading and unloading automatic lifting positioning mechanism, characterized in that: Includes a base (1), a lifting assembly (2) is movably connected to the top of the base (1), a platform (3) is movably connected to the top of the lifting assembly (2), the platform (3) has an internal hollow cavity structure, a positioning assembly (4) is installed inside the platform (3), a clamping assembly (5) is installed inside the platform (3), a hydraulic control mechanism (6) is provided on one side of the top of the platform (3), a fence (7) is symmetrically distributed on the top of the platform (3), a slide rail (8) is provided on one side of the outside of the platform (3), a positioning hole (9) is provided on one side of the outside of the positioning assembly (4), and self-locking universal wheels (10) are installed at the four corners of the bottom of the base (1). The positioning component (4) includes a first hydraulic cylinder (401), one end of which is movably sleeved with a first piston rod (402), and one end of the first piston rod (402) passes through one side of the platform (3) and is movably connected to a positioner (403). The first hydraulic cylinder (401), the first piston rod (402) and the positioner (403) are symmetrically distributed about the horizontal center line of the platform (3). The clamping assembly (5) includes a second hydraulic cylinder (501), one end of which is movably sleeved with a second piston rod (502), and one end of the second piston rod (502) is movably connected to a clamping device (503). The inner wall of the clamping device (503) is rotatably connected to the outer wall of the support member (504). The platform (3) has a slot (505) above the clamping device (503).

2. The automatic kiln car loading and unloading lift positioning mechanism as claimed in claim 1, wherein: The clamp (503) is boomerang-shaped, and the second hydraulic cylinder (501), the second piston rod (502), the clamp (503) and the support (504) are symmetrically distributed about the horizontal center line of the platform (3).

3. The automatic kiln car loading and unloading lift positioning mechanism as claimed in claim 1, wherein: The lifting assembly (2) includes a servo motor (201), and one end of the output shaft of the servo motor (201) passes through one side of the second support column (202) and is rotatably connected to a lead screw (203). The two ends of the lead screw (203) are rotatably connected to the opposite sides of the two second support columns (202), and a moving part (204) is threadedly connected to the outer wall of the lead screw (203). A push rod (205) is movably sleeved on the inner wall of the moving part (204), and the two ends of the push rod (205) are movably connected to one side of the two scissor telescopic devices (206).

4. The automatic kiln car loading and unloading lift positioning mechanism as claimed in claim 1, wherein: The hydraulic control mechanism (6) is electrically connected to the servo motor (201), and the hydraulic control mechanism (6) is electrically connected to the first hydraulic cylinder (401) and the second hydraulic cylinder (501) respectively. The inner diameter of the positioning hole (9) is consistent with the outer diameter of the positioner (403).

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