Turnover mechanism for unmanned mine truck

Abstract

The utility model discloses a turnover mechanism for an unmanned mine truck. The turnover mechanism comprises a driving assembly, the locking gear assembly is in transmission connection with the driving assembly; and an overturning arm group. The driving assembly is in transmission connection with the locking gear assembly through a transmission assembly. The overturning arm set comprises a connecting arm and an overturning arm. The transmission assembly is connected with the chassis through the connecting arm, and the transmission assembly is connected with the overturning arm through a bearing. And the turnover arm is connected with the turnover frame. The turnover mechanism and the mine truck lifting hydraulic cylinder synchronously carry out lifting through the driving assembly, and safety, practicability, accuracy and real-time performance of various kinds of power-assisted lifting are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned mining trucks, in particular to a turning mechanism for unmanned mining trucks. Background Art

[0002] With the continuous development of automation technology, unmanned mining trucks have become widely used in mining operations. However, when operating in specific terrain or loading and unloading ore, existing unmanned mining trucks often suffer from complex flipping mechanisms, difficult maintenance, easy damage, and lack of safety protection, which affects work efficiency and safety.

[0003] Therefore, based on the above technical problems, technicians in this field urgently need to develop a flipping mechanism for unmanned mining trucks. Utility Model Content

[0004] The purpose of the utility model is to provide a turning mechanism for an unmanned mining truck, which has the functions of turning and lifting while also ensuring safety, and has a simple structure, convenient maintenance and operation, and high reliability.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] The utility model discloses a turning mechanism for an unmanned mining truck. The turning mechanism is integrated into the tail of the unmanned mining truck and is arranged between the chassis of the mining truck and the turning frame of the mining truck. The turning mechanism assists the unloading hydraulic cylinder to drive the turning frame to turn a certain angle for unloading. The turning mechanism includes:

[0007] Drive components;

[0008] a locking gear assembly drivingly connected to the drive assembly; and

[0009] Flip arm assembly;

[0010] The driving assembly is connected to the locking gear assembly through a transmission assembly, and the flip arm assembly includes a connecting arm and a flip arm;

[0011] The transmission assembly is connected to the chassis via the connecting arm, and the transmission assembly is connected to the flip arm via a bearing;

[0012] The turning arm is connected to the turning frame.

[0013] Furthermore, the driving component includes:

[0014] variable speed motor;

[0015] A variable speed motor transmission shaft connected to the output end of the variable speed motor;

[0016] The retarder, the variable speed motor is connected to the power input end of the retarder through the variable speed motor transmission shaft;

[0017] The power output ends at both ends of the retarder are connected with a retarder transmission shaft, and the locking gear assembly is transmission-connected to the retarder through the retarder transmission shaft.

[0018] Furthermore, the retarder transmission shaft is provided with the bearings at both ends of the locking gear assembly, and the retarder transmission shaft is connected to the flip arm through the bearings.

[0019] Furthermore, the bearing is divided into a self-aligning ball bearing close to one end of the retarder, and a thrust self-aligning roller bearing away from one end of the retarder.

[0020] Furthermore, the locking gear assembly includes:

[0021] a transmission gear connected to the retarder transmission shaft and rotating along with the retarder transmission shaft; and

[0022] a locking gear connected to the retarder transmission shaft;

[0023] A control device is integrated between the transmission gear and the locking gear.

[0024] In the above technical solution, the utility model provides a turning mechanism for an unmanned mining truck, which has the following beneficial effects:

[0025] The turning mechanism of the utility model realizes lifting synchronously with the lifting hydraulic cylinder of the mining truck through the driving component, thereby realizing the safety, practicality, accuracy and real-time performance of multiple power-assisted lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 This is a structural schematic diagram of a turning mechanism for an unmanned mining truck in use according to an embodiment of the utility model;

[0028] Figure 2 This is a top view of a turning mechanism for an unmanned mining truck disclosed in an embodiment of the utility model;

[0029] Figure 3 The present invention is a schematic structural diagram of a turning mechanism for an unmanned mining truck disclosed in an embodiment of the present invention.

[0030] Description of Figure Numbers:

[0031] 10. Chassis; 11. Turning frame;

[0032] 20. Flipping mechanism;

[0033] 1. Variable speed motor; 2. Retarder;

[0034] 301, variable speed motor drive shaft; 302, retarder drive shaft;

[0035] 401, connecting arm; 402, flip arm;

[0036] 501, transmission gear; 502, locking gear assembly; 503, control device;

[0037] 601. Self-aligning ball bearing; 602. Thrust spherical roller bearing. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] See also Figures 1 to 3 As shown;

[0040] The present embodiment provides a turning mechanism for an unmanned mining truck. The turning mechanism 20 is integrated into the rear of the unmanned mining truck and is disposed between the chassis 10 of the mining truck and the turning frame 11 of the mining truck. The turning mechanism 20 assists the unloading hydraulic cylinder in driving the turning frame 11 to turn a certain angle for unloading. The turning mechanism 20 includes:

[0041] Drive components;

[0042] A locking gear assembly 502 drivingly connected to the drive assembly; and

[0043] Flip arm assembly;

[0044] The driving assembly is connected to the locking gear assembly 502 through the transmission assembly, and the flip arm assembly includes a connecting arm 401 and a flip arm 402;

[0045] The transmission assembly is connected to the chassis 10 via the connecting arm 401, and the transmission assembly is connected to the flip arm 402 via a bearing;

[0046] The turning arm 402 is connected to the turning frame 11 .

[0047] Specifically, this embodiment discloses a flipping mechanism suitable for unmanned mining trucks, which mainly assists the lifting hydraulic cylinder of the flip frame 11 to act on the flip frame 11 to assist in lifting. It mainly includes a drive assembly, a transmission assembly, a locking gear assembly 502 and a flip arm assembly; the unmanned mining truck body has automatic driving and remote control capabilities, and can move to a specified position according to a preset path and instruction form. When the car body is lifted, this flipping mechanism will operate synchronously with the hydraulic cylinder. At the same time, the locking gear assembly and its control mechanism will automatically determine whether assistance or locking is required based on the speed and pressure data transmitted by the cylinder lifting. When this mechanism detects that the cylinder is under-pressure or unstable during the lifting process or the lowering process, it will intervene in time for protection to ensure safety during the lifting and lowering process.

[0048] Preferably, the driving assembly of this embodiment includes:

[0049] Variable speed motor 1;

[0050] A variable speed motor transmission shaft 301 connected to the output end of the variable speed motor 1;

[0051] The retarder 2 and the speed-changing motor 1 are connected to the power input end of the retarder 2 via the speed-changing motor transmission shaft 302;

[0052] The power output ends at both ends of the retarder 2 are connected to the retarder transmission shaft 301 , and the locking gear assembly 502 is transmission-connected to the retarder 2 via the retarder transmission shaft 302 .

[0053] In this embodiment, the retarder transmission shaft 302 is provided with bearings at both ends of the locking gear assembly 502 , and the retarder transmission shaft 302 is connected to the flip arm 402 through the bearings.

[0054] The above-mentioned bearings are divided into a self-aligning ball bearing 601 close to one end of the retarder 2 and a thrust self-aligning roller bearing 602 away from one end of the retarder 2 .

[0055] This embodiment further defines the components of the drive assembly, which uses a variable speed motor 1 as its power source, driving the retarder drive shaft 302 at both output ends through the retarder 2 to rotate, thereby operating the locking gear assembly 502. Structurally, this embodiment's mechanism is primarily mounted at the rear of the truck, and performs real-time flipping based on the lift control signal.

[0056] Preferably, the locking gear assembly of this embodiment includes:

[0057] A transmission gear 501 connected to the retarder transmission shaft 302 and rotating along with the retarder transmission shaft 302; and

[0058] a locking gear connected to the retarder transmission shaft 302;

[0059] A control device 503 is integrated between the transmission gear and the locking gear.

[0060] The locking gear assembly 502 of this embodiment is equipped with a safety locking device to ensure the stability of the truck components during the flipping process, preventing accidental slippage or damage. A combination of a thrust spherical roller bearing 602 and a self-aligning ball bearing 601 is used to ensure concentricity during flipping. The control device 503 of this embodiment utilizes a PLC or embedded system as its core control system, enabling automatic control and remote monitoring of the flipping mechanism 20. During the flipping process, the control device 503 directly controls the variable speed motor 1, which drives the retarder 2 connected to the retarder drive shaft 302 via the variable speed motor drive shaft 301, and controls the flipping arm assembly to automatically determine synchronization with the hydraulic cylinder lifting, while also determining and controlling the timely engagement of the locking gear assembly 502 with the drive gear 501. The control device 503 of this embodiment integrates multiple sensors, such as angle sensors, pressure sensors, and displacement sensors, to monitor various parameters during the flipping process in real time to ensure operational safety. The sensors of this embodiment are integrated into the material detection and identification system and installed on the truck to monitor material loading in real time, ensuring the safety and accuracy of the flipping operation.

[0061] Working principle:

[0062] S1. Install the flipping mechanism 20 on the chassis 10 of the mining truck and ensure that the connection between the flipping mechanism 20 and the unmanned driving module is stable and reliable.

[0063] S2. Set the flipping parameters through the control system, and debug the flipping mechanism 20 through the control system to ensure that the driving variable speed motor 1 and the retarder 2 and the various transmission components, the retarder drive shaft 302 and the variable speed motor drive shaft 301, cooperate well without jamming, without stuck teeth, etc., to ensure normal operation, so that there is no abnormal sound and vibration during lifting, including the flipping angle, speed and synchronization of this flipping mechanism 20 with the hydraulic cylinder.

[0064] S3. When the mining truck reaches the unloading area, the control system receives the unloading instruction and drives the hydraulic cylinder to start working.

[0065] S4: The hydraulic cylinder drives the turning frame 11 to rotate around the fixed axis. Depending on the actual situation, the PLC control system controls the turning mechanism 20 and the hydraulic cylinder to synchronize the turning action, completing tasks such as ore loading and unloading. At the same time, the turning mechanism 20 transmits power through the variable speed motor 1 and the drive shaft to the retarder 2 to maintain a smooth turning process.

[0066] S5. When flipped to a preset angle, the flip frame is automatically locked by the gear locking automatic controller device. The gear locking automatic controller device of this embodiment is locked through automatic judgment by the background system and control of the PLC control system to prevent it from continuing to rotate or falling due to insufficient cylinder pressure.

[0067] S6. The goods slide down from the turning frame 11 to the designated position under the action of gravity, completing the unloading process.

[0068] S7. After unloading is completed, the control system controls the hydraulic cylinder and the drive assembly to work in reverse. When falling back, the overturning mechanism 20 will be automatically locked and released, so that the overturning frame 11 is reset to the initial position and is ready for the next unloading.

[0069] In the above technical solution, the utility model provides a turning mechanism for an unmanned mining truck, which has the following beneficial effects:

[0070] The turning mechanism 20 of the present invention realizes lifting synchronously with the lifting hydraulic cylinder of the mining truck through the driving component, thereby achieving the safety, practicality, accuracy and real-time performance of multiple power-assisted lifting.

[0071] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A turning mechanism for an unmanned mining truck, characterized in that: The turning mechanism (20) is integrated into the tail of the unmanned mining truck and is arranged between the chassis (10) of the mining truck and the turning frame (11) of the mining truck. The turning mechanism (20) assists the unloading hydraulic cylinder to drive the turning frame (11) to turn over a certain angle for unloading. The turning mechanism (20) includes: Drive components; a locking gear assembly (502) drivingly connected to the drive assembly; and Flip arm assembly; The driving assembly is in transmission connection with the locking gear assembly (502) via a transmission assembly, and the flip arm assembly comprises a connecting arm (401) and a flip arm (402); The transmission assembly is connected to the chassis (10) via the connecting arm (401), and the transmission assembly is connected to the flip arm (402) via a bearing; The turning arm (402) is connected to the turning frame (11).

2. The unmanned mining truck turning mechanism according to claim 1, characterized in that: The drive assembly includes: Variable speed motor (1); A variable speed motor transmission shaft (301) connected to the output end of the variable speed motor (1); The retarder (2) is connected to the power input end of the retarder (2) through the variable speed motor transmission shaft (301); The power output ends at both ends of the retarder (2) are connected to a retarder transmission shaft (302), and the locking gear assembly (502) is transmission-connected to the retarder (2) via the retarder transmission shaft (302).

3. The unmanned mining truck turning mechanism according to claim 2, characterized in that: The retarder transmission shaft (302) is provided with the bearings at positions at both ends of the locking gear assembly (502), and the retarder transmission shaft (302) is connected to the flip arm (402) through the bearings.

4. The unmanned mining truck turning mechanism according to claim 3, characterized in that: The bearing is divided into a self-aligning ball bearing (601) close to one end of the retarder (2), and a thrust self-aligning roller bearing (602) away from one end of the retarder (2).

5. The unmanned mining truck turning mechanism according to claim 3, characterized in that: The locking gear assembly (502) includes: a transmission gear (501) connected to the retarder transmission shaft (302) and rotating along with the retarder transmission shaft (302); and a locking gear connected to the retarder transmission shaft (302); A control device (503) is integrated between the transmission gear and the locking gear.

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