A four-axis synchronous support platform for mine equipment

Abstract

The utility model discloses a kind of mine equipment four-axis synchronous support platform, including upper support plate, lower support plate, lifting mechanism and transmission shaft;Lifting mechanism includes multiple groups of lifting support, speed reducer and servo motor;Each group of lifting support is fixed on the upper surface of lower support plate, and it is evenly arranged along the periphery of lower support plate;Upper support plate bottom is fixed on the output end of each group of lifting support;Transmission shaft is located between each group of lifting support, and be provided with bevel gear pair on transmission shaft;The output shaft of servo motor is connected with the input shaft of speed reducer, and the output shaft of speed reducer is drivingly connected with transmission shaft;Transmission shaft is drivingly connected with each lifting support through bevel gear pair, forms closed transmission loop, drives four groups of lifting support synchronous action.The utility model cooperates through servo motor, speed reducer, transmission shaft and bevel gear pair, accurately drives four groups of lifting support synchronous action, solves the problem that traditional support platform is not synchronous, improves the stability and reliability of support platform.

Description

Technical Field

[0001] This utility model belongs to the field of mining equipment technology, specifically a four-axis synchronous support platform for mining equipment. Background Technology

[0002] In mining operations, large equipment such as crushers and screening machines require support platforms for stable operation and height adjustment. While currently widely used hydraulic or mechanical support platforms can meet basic load-bearing requirements, they have the following significant drawbacks in practical applications:

[0003] 1. Existing platforms mostly use independent drive units to control the lifting and lowering of each support point. Due to mechanical backlash, hydraulic response delay, or insufficient control precision, the movements of each support point are difficult to synchronize completely. This defect causes the equipment to be subjected to eccentric stress during lifting and lowering, which not only accelerates abnormal wear of key components such as bearings and gears, but may also cause structural deformation or even equipment failure, seriously restricting the service life and continuous operation capability of the equipment.

[0004] 2. Mining faces often present complex conditions such as uneven ground and vibration impacts. Traditional support platforms, lacking effective anti-tipping guidance mechanisms, are prone to swaying and tilting under load changes or external disturbances. This problem not only reduces equipment operating accuracy and affects conveyor belt alignment and screening efficiency, but also poses a risk of equipment tipping over, directly threatening the safety of operators and increasing the frequency of unplanned equipment downtime.

[0005] 3. Existing platform transmission components, such as lead screws and gears, are often exposed to high dust and rock-splashing environments in mines. The intrusion of debris can easily lead to transmission jamming, thread damage and other failures, which greatly increases maintenance costs and shortens the life of core components. Utility Model Content

[0006] The main purpose of this utility model is to provide a four-axis synchronous support platform for mining equipment with synchronous lifting and good stability.

[0007] This utility model provides a four-axis synchronous support platform for mining equipment, comprising an upper support plate, a lower support plate, a lifting mechanism, and a transmission shaft. The lifting mechanism includes multiple sets of lifting supports, a reducer, and a servo motor. Each set of lifting supports is fixed to the upper surface of the lower support plate and is evenly distributed around the lower support plate. The bottom of the upper support plate is fixed to the output end of each set of lifting supports. The transmission shaft is located between each set of lifting supports and is equipped with a bevel gear pair. The output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the transmission shaft. The transmission shaft is connected to each lifting support through the bevel gear pair, forming a closed transmission circuit to drive the four sets of lifting supports to move synchronously.

[0008] In one embodiment of the aforementioned support platform, the lifting support includes a lifting cylinder, a lifting shaft, a support member, and a lifting screw; the lifting cylinder is fixed to the upper surface of the lower support plate, the lifting shaft is located inside the lifting cylinder and can slide up and down along the lifting cylinder; the lifting shaft has a threaded cavity inside, the support member is fixed inside the lifting cylinder near one end of the transmission shaft; one end of the lifting screw is located on the support member and can rotate relative to it, and the other end extends into the threaded cavity of the lifting shaft, and is screwed to the threaded cavity through the thread on the outer surface of the lifting screw.

[0009] In one embodiment of the aforementioned support platform, a transmission bevel gear is fixedly provided at one end of the lifting screw near the transmission shaft, and meshes with the bevel gear pair on the transmission shaft for transmission.

[0010] In one embodiment of the above-mentioned support platform, the inner wall of the lifting cylinder is symmetrically provided with a plurality of slide rails along the length direction; the bottom of the outer wall of the lifting shaft is provided with a protrusion that matches the slide rails.

[0011] In one embodiment of the aforementioned support platform, the protrusion has a semi-circular cross-section.

[0012] In one embodiment of the aforementioned support platform, the top of the slide rail of the lifting cylinder is closed.

[0013] In one embodiment of the aforementioned support platform, a fixing frame is provided between the outer walls of the lifting cylinders of each set of lifting supports.

[0014] In one embodiment of the aforementioned support platform, a protective plate is provided between each lifting cylinder, and the protective plate is located above the drive shaft.

[0015] In one embodiment of the aforementioned support platform, the bottom of the lower support plate is provided with anti-slip protrusions.

[0016] In one embodiment of the aforementioned support platform, a mounting bracket is provided on the top of the upper support plate.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. By coordinating the operation of servo motors, reducers, transmission shafts and bevel gear pairs, the four sets of lifting supports are precisely driven to move synchronously, solving the problem of asynchronous lifting of traditional support platforms, improving the stability and reliability of the support platform, reducing equipment failures caused by unstable support, and improving the working efficiency of mining equipment.

[0019] 2. The lifting shaft and the lifting screw are connected by threads, and a slide rail and a matching protrusion are provided. This not only ensures a smooth and stable lifting process and avoids shaking and jamming, but also enhances the structure's guiding and anti-tilting capabilities, further improving the overall performance of the support platform.

[0020] 3. Install a fixed frame to enhance the structural stability of the support platform, enabling it to better withstand various external impacts under complex mining conditions; at the same time, install protective plates to prevent debris from falling onto critical components such as the drive shaft, avoiding transmission failures caused by debris interference, extending equipment service life, and reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a front view of one embodiment of the present invention.

[0022] Figure 2 for Figure 1 Side view.

[0023] Figure 3 for Figure 1 Top view.

[0024] Figure 4 for Figure 1 A schematic diagram of the structure of the lifting support.

[0025] Figure 5 for Figure 1 A schematic diagram of the transmission between the middle bevel gear pair and the drive bevel gear.

[0026] Figure 6 for Figure 1 A bottom-view diagram of the central lifting cylinder.

[0027] Figure 7 for Figure 1 A bottom view of the central lifting shaft. Detailed Implementation

[0028] The relevant technical solutions will now be clearly and completely described with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the four-axis synchronous support platform for mining equipment disclosed in this embodiment includes an upper support plate 1, a lower support plate 2, a lifting mechanism 3, and a transmission shaft 4.

[0030] The lifting mechanism 3 includes four sets of lifting supports 31, a reducer 32, and a servo motor 33. The four sets of lifting supports are fixed to the upper surface of the lower support plate 2 and are evenly distributed around the perimeter of the lower support plate. The bottom of the upper support plate 1 is fixed to the output end of the four sets of lifting supports.

[0031] The drive shaft 4 is located between the four sets of lifting supports, and a bevel gear pair 41 is provided on the drive shaft; the output shaft of the servo motor 33 is connected to the input shaft of the reducer 32, and the output shaft of the reducer is connected to the drive shaft; the drive shaft is connected to each lifting support 31 through the bevel gear pair to form a closed transmission circuit, driving the four sets of lifting supports to move synchronously.

[0032] like Figure 4 and Figure 5 As shown, each set of lifting supports 31 includes a lifting cylinder 311, a lifting shaft 312, a support member 313, and a lifting screw 314.

[0033] like Figure 6 As shown, the lifting cylinder 311 is fixed on the upper surface of the lower support plate 2, and its inner wall is symmetrically provided with several slide rails 7 along the length direction.

[0034] like Figure 7 As shown, the lifting shaft 312 is located inside the lifting cylinder 311 and can slide up and down along the lifting cylinder; its outer wall bottom is provided with a protrusion 8 that matches the slide rail, and the cross-section of the protrusion 8 is semi-circular.

[0035] The top of the slide rail 7 of the lifting cylinder 311 is closed. When the lifting shaft 312 slides to the top, the protrusion 8 can prevent the lifting shaft from dislodging from the lifting cylinder.

[0036] The lifting shaft 312 has a threaded cavity 6 inside, and the support member 313 is fixedly installed in the lifting cylinder 311 near one end of the transmission shaft 4; one end of the lifting screw 314 is installed on the support member and can rotate relative to it, and the other end extends into the threaded cavity of the lifting shaft, and is screwed to the threaded cavity through the thread on the outer surface of the lifting screw.

[0037] The transmission bevel gear 5 is fixedly mounted on one end of the lifting screw 314 near the transmission shaft 4, and meshes with the bevel gear pair 41 on the transmission shaft for transmission.

[0038] A fixing frame 9 is provided between the outer walls of the lifting cylinders 311 of the four sets of lifting supports 31 to enhance the overall structural stability; a protective plate 10 is also provided between each lifting cylinder 311, and the protective plate is located above the transmission shaft 4 to prevent debris from falling onto the transmission components.

[0039] The bottom of the lower support plate 2 is provided with anti-slip protrusions to increase the friction with the ground and prevent the lower support plate 2 from sliding during operation; the top of the upper support plate 1 is provided with a mounting bracket to facilitate the fixing of mining equipment to the upper support plate 1.

[0040] The servo motor of this support platform provides the lifting power source; the reducer reduces the speed and increases the torque to transmit power to the drive shaft; the drive shaft distributes the power synchronously to the four sets of lifting supports through the bevel gear pair; the lifting screw converts the rotational motion into the linear motion of the lifting shaft; the slide rail and the protrusion cooperate to guide the displacement of the lifting shaft, ensuring that it rises and falls smoothly along the lifting cylinder, enhancing the guiding performance and anti-tilting ability.

[0041] The usage instructions for this support platform are as follows:

[0042] S1. When it is necessary to adjust the height of the upper support plate 1, start the servo motor 33. The power output of the servo motor is reduced and increased in torque by the reducer 32 and then transmitted to the transmission shaft 4.

[0043] S2. When the drive shaft 4 rotates, the bevel gear pair 41 on it drives the drive bevel gear 5 in each lifting support 31 to rotate, and the drive bevel gear drives the lifting screw 314 to rotate.

[0044] S3. Since the lifting screw 314 is screwed into the threaded cavity 6 inside the lifting shaft 312, and the protrusion 8 at the bottom of the lifting shaft cooperates with the slide rail 7 on the inner wall of the lifting cylinder 311, the displacement of the lifting shaft is restricted, so that the rotational motion of the lifting screw is converted into the vertical linear motion of the lifting shaft, thereby realizing the lifting of the upper support plate 1.

[0045] S4. Because the four sets of lifting supports 31 form a closed transmission circuit through the transmission shaft 4 and the bevel gear pair 41, it can ensure that the four sets of lifting supports move synchronously, realize the synchronous lifting of the four axes, and stably adjust the height of the upper support plate 1 to meet the different working needs of mining equipment.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A four-axis synchronous support platform for mining equipment, characterized in that: It includes an upper support plate, a lower support plate, a lifting mechanism, and a drive shaft; The lifting mechanism includes multiple sets of lifting supports, a reducer, and a servo motor. Each set of lifting supports is fixed to the upper surface of the lower support plate and is evenly distributed around the perimeter of the lower support plate. The bottom of the upper support plate is fixed to the output end of each set of lifting supports. A drive shaft is located between each set of lifting supports and is equipped with a bevel gear pair. The output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the drive shaft. The drive shaft is connected to each lifting support through the bevel gear pair, forming a closed transmission circuit that drives the four sets of lifting supports to move synchronously. The lifting support includes a lifting cylinder, a lifting shaft, a support member, and a lifting screw. The lifting cylinder is fixed on the upper surface of the lower support plate, and the lifting shaft is located inside the lifting cylinder and can slide up and down along the lifting cylinder. The lifting shaft has a threaded cavity inside, and the support member is fixed inside the lifting cylinder near one end of the drive shaft. One end of the lifting screw is located on the support member and can rotate relative to it, while the other end extends into the threaded cavity of the lifting shaft and is screwed into the threaded cavity through the thread on the outer surface of the lifting screw. The lifting screw is fixedly provided with a transmission bevel gear at one end near the transmission shaft, which meshes with the bevel gear pair on the transmission shaft for transmission.

2. The four-axis synchronous support platform for mining equipment as described in claim 1, characterized in that: The inner wall of the lifting cylinder is symmetrically provided with several slide rails along its length; the bottom of the outer wall of the lifting shaft is provided with a protrusion that matches the slide rails.

3. The four-axis synchronous support platform for mining equipment as described in claim 2, characterized in that: The protrusion has a semi-circular cross-section.

4. The four-axis synchronous support platform for mining equipment as described in claim 2, characterized in that: The top of the slide rail of the lifting cylinder is closed.

5. The four-axis synchronous support platform for mining equipment as described in claim 1, characterized in that: A fixing frame is provided between the outer walls of the lifting cylinders of each group of lifting supports.

6. The four-axis synchronous support platform for mining equipment as described in claim 1, characterized in that: Protective plates are installed between each lifting cylinder, and the protective plates are located above the drive shaft.

7. The four-axis synchronous support platform for mining equipment as described in claim 1, characterized in that: The bottom of the lower support plate is provided with anti-slip protrusions.

8. The four-axis synchronous support platform for mining equipment as described in claim 1, characterized in that: The upper support plate is equipped with a mounting bracket on its top.

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