A mechanical limiting device for the telescopic arm of a mixing car capping robot

Abstract

The present invention discloses a mechanical limit device for the telescopic arm of a hybrid car capping robot. Through the spiral transmission between the lead screw, the screw, the driving gear, the intermediate gear and the driven gear, the nut on the screw is driven to perform linear motion on the screw, thereby enabling the limit block on the nut to move synchronously with the telescopic arm. When the telescopic arm moves to the specified position, the limit block can trigger the mechanical limit combination switch in time. Such a mechanical limit device can still maintain an effective limit function in high or low temperature environments, which can greatly reduce the equipment failure rate, thereby reducing the equipment maintenance cost, improving economic benefits while reducing the labor intensity of the staff and improving the versatility of the device.

Description

Technical Field

[0001] The present invention belongs to the field of iron and steel metallurgy and production automation, and more particularly relates to a mechanical limiting device for a telescopic arm of a mixing car capping robot. Background Art

[0002] The current low-carbon and environmentally friendly policies have placed high demands on every aspect of steel production. Iron cars, due to their open-top transport, generate large amounts of smoke and dust. This smoke and dust seriously pollute the environment and, in turn, harm human health. This open transport also causes the temperature of the hot molten iron to drop, resulting in immeasurable energy losses. When the heat loss of the molten iron reaches 150-180°C, it severely impacts normal production operations, reduces efficiency, increases economic costs, and wastes human resources. In recent years, the vast majority of large domestic steel mills have used sintering cars to transport molten iron. Because sintering cars carry high-temperature molten iron, they are susceptible to slagging at the furnace mouth. Furthermore, they pose safety hazards such as tipping. Due to the limited operating conditions of sintering cars, some companies have attempted to add covers, but these attempts have been unsuccessful. Consequently, users are cautious and hesitant about the use of sintering car covers, and their acceptance is generally low.

[0003] To address these user pain points and current circumstances, Baowu Heavy Industry Co., Ltd. actively engaged in technological research and development, successfully developing a robotic capping system for mixed-metal trucks. This device effectively reduces dust and smoke emissions from the truck tank, minimizes molten iron temperature loss, and lowers steelmaking costs. It also enables automated capping and uncapping. However, its electronic limiter exhibits a high failure rate in both high and low temperature environments, limiting its versatility. Summary of the Invention

[0004] The present invention provides a mechanical limit device for the telescopic arm of a capping robot for a mixed-rail vehicle to solve the above-mentioned technical problems, specifically adopting the following technical solutions:

[0005] A mechanical limit device for the telescopic arm of a hybrid car capping robot comprises: a motor and a screw threaded through the interior of the telescopic arm; the output end of the motor is cooperatively connected to one end of a coupling; the other end of the coupling is cooperatively connected to the screw; a support seat and a nut seat are provided on the screw; a key is connected to a driving gear between the coupling and the support seat; a first bearing seat is fixed to the fixed arm outside the telescopic arm by bolts; a rotating shaft is installed through the first bearing seat; intermediate gears are respectively provided at both ends of the rotating shaft; the intermediate gear provided at one end of the rotating shaft extending into the fixed arm is connected to the driving gear The gears are meshed and connected; the fixed arm is provided with a second bearing seat and a third bearing seat; the second bearing seat and the third bearing seat are rotatably supported by a screw; the end of the screw is keyed to a driven gear; an intermediate gear is provided at one end of the fixed arm extending out of the rotating shaft and meshes with the driven gear; a mechanical limit combination switch and a limit block for triggering the mechanical limit combination switch are relatively provided at the part of the screw between the second bearing seat and the third bearing seat; a nut is also threadedly sleeved on the screw between the second bearing seat and the third bearing seat; the limit block is slidably connected to the slide rail provided on the screw and fixed to the nut.

[0006] As a preferred technical solution of the present invention, the support seat is fixed to the inner side of the fixed arm and rotates to support the screw rod; the nut seat is fixed to the end of the telescopic arm, and the threaded sleeve is arranged on the outer periphery of the screw rod; the telescopic arm is slidably connected to the inner side of the fixed arm.

[0007] As a preferred technical solution of the present invention, the nut performs linear motion on the screw.

[0008] As a preferred technical solution of the present invention, the driving gear and the screw have the same rotational speed.

[0009] As a preferred technical solution of the present invention, the driving gear and the intermediate gear provided at one end of the rotating shaft extending into the fixed arm are bevel gears meshing with each other.

[0010] As a preferred technical solution of the present invention, the driven gear and the intermediate gear provided at one end of the rotating shaft extending out of the fixed arm are bevel gears meshing with each other.

[0011] As a preferred technical solution of the present invention, the thread ratio of the lead screw and the screw is 6:1.

[0012] As a preferred technical solution of the present invention, the module ratio of the driving gear and the intermediate gear is 2:1.

[0013] As a preferred technical solution of the present invention, the module ratio of the driven gear and the intermediate gear is 2:1.

[0014] As a preferred technical solution of the present invention, the limiting block and the nut are fixedly connected with bolts.

[0015] The benefit of the present invention lies in the provision of a mechanical limit device for the telescopic arm of a hybrid car capping robot. Through the spiral transmission between the lead screw, the screw, the driving gear, the intermediate gear and the driven gear, the nut on the screw is driven to move linearly on the screw, thereby enabling the limit block on the nut to move synchronously with the telescopic arm. When the telescopic arm moves to the specified position, the limit block can trigger the mechanical limit combination switch in time. Such a mechanical limit device can still maintain an effective limit function in high or low temperature environments, which can greatly reduce the equipment failure rate, thereby reducing the equipment maintenance cost, improving economic benefits while reducing the labor intensity of the staff and improving the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a front view of a mechanical limiting device for the telescopic arm of a hybrid car capping robot involved in the present application.

[0018] A mechanical limit device 10 of a telescopic arm of a hybrid car capping robot comprises a motor 11, a telescopic arm 12, a fixed arm 13, a screw 14, a coupling 15, a support seat 16, a nut seat 17, a driving gear 18, a first bearing seat 19, a rotating shaft 20, an intermediate gear 21, a driven gear 22, a screw 23, a second bearing seat 24, a third bearing seat 25, a mechanical limit combination switch 26, a limit block (not shown), a nut 27, a slide rail 28, and a bolt (not shown). DETAILED DESCRIPTION

[0019] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0020] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0021] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0022] like Figure 1 The figure shows a mechanical limiter 10 for the telescopic arm 12 of a hybrid vehicle capping robot according to the present application. The device comprises a motor 11 and a screw 14 threaded through the interior of the telescopic arm 12. The screw 14 is used to drive the telescopic arm 12. The output end of the motor 11 is matingly connected to one end of a coupling 15. The other end of the coupling 15 is matingly connected to the screw 14. A support seat 16 and a seat 17 for a nut 27 are provided on the screw 14. A driving gear 18 is keyed to the portion between the coupling 15 and the support seat 16. A first bearing seat 19 is bolted to the fixed arm 13 outside the telescopic arm 12. A rotating shaft 20 is mounted through the first bearing seat 19. Intermediate gears 21 are respectively mounted on each end of the rotating shaft 20. The intermediate gear 21 is provided on one end of the rotating shaft 20 that extends into the fixed arm 13 and meshes with the driving gear 18. The fixed arm 13 is provided with a second bearing seat 24 and a third bearing seat 25. The second and third bearing seats 24 and 25 rotatably support the screw 23. The end of the screw rod 23 is keyed to a driven gear 22. An intermediate gear 21, provided on one end of the rotating shaft 20 extending from the fixed arm 13, meshes with the driven gear 22. A mechanical limit switch 26 and a stop block for triggering the mechanical limit switch 26 are positioned in the portion of the screw rod 23 between the second bearing block 24 and the third bearing block 25. A nut 27 is also threadedly mounted on the screw rod 23 between the second and third bearing blocks 24, 25. The stop block is slidably connected to a slide rail 28 provided on the screw rod 23 and secured to the nut 27.

[0023] As a further embodiment, a support base 16 is fixed to the inside of the fixed arm 13 and rotatably supports the screw 14. A nut 27 is fixed to the end of the telescopic arm 12 and is threadedly mounted on the outer periphery of the screw 14 to support the screw 14. The telescopic arm 12 is slidably connected to the inside of the fixed arm 13. The telescopic arm 12 slides along the inside of the fixed arm 13.

[0024] As a further solution, the nut 27 performs linear motion on the screw rod 23 , thereby driving the limit block to perform linear motion between the mechanical limit combination switches 26 , thereby triggering the mechanical limit combination switches 26 .

[0025] As a further embodiment, the driving gear 18 rotates at the same speed as the screw 14. The driving gear 18 drives the intermediate gear 21 meshing with it, which in turn drives the rotating shaft 20, which in turn drives the intermediate gear 21 at the other end of the rotating shaft 20. The intermediate gear 21 drives the driven gear 22 meshing with it, which in turn drives the screw 23, which in turn drives the nut 27 on the screw 23 to linear motion, causing the limit block on the nut 27 to trigger the mechanical limit switch combination 26.

[0026] As a further solution, the driving gear 18 and the intermediate gear 21 provided at the end of the rotating shaft 20 extending into the fixed arm 13 are bevel gears. The driven gear 22 and the intermediate gear 21 provided at the end of the rotating shaft 20 extending out of the fixed arm 13 are also bevel gears. The bevel gears can change the transmission direction of the screw rod 14.

[0027] As a further solution, the thread ratio of the screw rod 14 to the screw rod 23 is 6: 1. This can increase the rotation speed of the screw rod 23 and thus increase the movement speed of the nut 27.

[0028] As a further solution, the module ratio between the driving gear 18 and the intermediate gear 21 is 2:1. Each rotation of the driving gear 18 drives two rotations of the intermediate gear 21. The module ratio between the driven gear 22 and the intermediate gear 21 is also 2:1. Each rotation of the intermediate gear 21 drives one rotation of the driven gear 22. This allows the limit block to move synchronously with the telescopic arm 12. When the telescopic arm 12 reaches a specified position, the limit block triggers the mechanical limit switch 26.

[0029] As a further solution, the limit block and the nut 27 are fixedly connected with bolts, and the nut 27 drives the limit block to perform linear motion together.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of the present invention.

Claims

1. A mechanical limit device for the telescopic arm of a mixing car capping robot, characterized in that: include: The motor and the lead screw that threads through the inside of the telescopic arm; The output end of the motor is cooperatively connected with one end of the coupling; The other end of the coupling is cooperatively connected with the screw rod; The screw rod is provided with a support seat and a nut seat; A driving gear is partially keyed between the coupling and the support seat; A first bearing seat is fixed to the fixed arm outside the telescopic arm by means of bolts; A rotating shaft is installed through the first bearing seat; Intermediate gears are respectively provided at both ends of the rotating shaft; The intermediate gear provided at one end of the rotating shaft extending into the fixed arm is meshed and connected with the driving gear; The fixed arm is provided with a second bearing seat and a third bearing seat; The second bearing seat and the third bearing seat are rotatably supported by screws; The end of the screw is key-connected with a driven gear; The intermediate gear provided on one end of the rotating shaft extending out of the fixed arm is engaged with the driven gear; A mechanical limit combination switch and a limit block for triggering the mechanical limit combination switch are relatively provided on the portion of the screw between the second bearing seat and the third bearing seat; The screw rod is further threadedly sleeved with a nut between the second bearing seat and the third bearing seat; The limiting block is slidably connected to the slide rail provided on the screw rod and is fixed to the nut; The driving gear and the intermediate gear provided at one end of the rotating shaft extending into the fixed arm are bevel gears meshing; The driven gear and the intermediate gear provided at one end of the rotating shaft extending out of the fixed arm are bevel gears meshing with each other.

2. The mechanical limiting device for the telescopic arm of the capping robot for a mixed-metal vehicle according to claim 1, characterized in that: The nut performs linear motion on the screw.

3. The mechanical limiting device for the telescopic arm of the mixing car capping robot according to claim 1, characterized in that: The driving gear and the screw rod have the same rotation speed.

4. The mechanical limiting device for the telescopic arm of the iron-mix car capping robot according to claim 1, characterized in that: The support seat is fixed to the inner side of the fixed arm and rotatably supports the screw rod; The nut seat is fixed to the end of the telescopic arm, and the thread is sleeved on the outer periphery of the screw rod; The telescopic arm is slidably connected to the inner side of the fixed arm.

5. The mechanical limiting device for the telescopic arm of the capping robot for a mixed-metal vehicle according to claim 1, characterized in that: The thread ratio of the lead screw to the screw is 6:

1.

6. The mechanical limiting device for the telescopic arm of the capping robot for a mixed-metal vehicle according to claim 1, characterized in that: The module ratio of the driving gear and the intermediate gear is 2:

1.

7. The mechanical limiting device for the telescopic arm of the iron-mix car capping robot according to claim 1, characterized in that: The module ratio of the driven gear and the intermediate gear is 2:

1.

8. The mechanical limiting device for the telescopic arm of the capping robot for a mixed-metal vehicle according to claim 1, characterized in that: The limiting block and the nut are fixedly connected by bolts.

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