A clamping control system and method for an arch mounting trolley

Abstract

The present invention discloses a clamping control system and method for an arch frame installation trolley, the system comprising a trolley, an actuator (7) of the trolley is provided with an actuator enabling valve (2) and an actuator unloading valve (4), both of which are connected to a controller (5); a clamping device (1) is provided on an arm frame (8) of the trolley, the clamping device (1) is connected to a clamping pressure sensor (3), and the clamping pressure sensor (3) is also connected to a controller (5); a display (6) is provided in an operating room of the trolley, and the display (6) is connected to the controller (5). The present invention can greatly reduce the noise of the hydraulic system of the trolley during operation, and provide a comfortable operating environment for the operator.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to a clamping control system and method for an arch mounting trolley. Background Art

[0002] At present, the technical level of rapid construction equipment, construction equipment and localization of soft rock tunnels for highway tunnels and railway tunnels in my country are still in the early stage of mechanization of tunnel construction, and the overall technology is still lagging behind developed countries. The mechanized rapid construction technology system based on drilling and blasting has not been completed, and the key technical problems of equipment matching have not been broken through. The construction progress varies greatly, and there are many potential accidents during the construction process. The main construction equipment on its operation line is mostly imported from abroad, and the number of independently developed varieties is relatively small, the quality is poor, the failure rate is high, and the main technical performance parameters do not match the existing construction conditions of the tunnel. Most of the domestic equipment is modified by excavators, etc., which has a low degree of professionalism, affects the operation efficiency, and is not easy to form a comprehensive mechanized construction operation line. Especially in the processes of excavation, slag discharge, spraying anchor, support, secondary concrete lining, etc. For soft surrounding rock and soil tunnels, most of them still use manual operations, with long process cycle time, large surrounding rock disturbance, high safety risks, and difficult support, resulting in the inability to quickly construct soft rock tunnels and form mechanized operations.

[0003] After tunnel excavation, in order to control the appropriate release of surrounding rock stress and deformation, increase structural safety and facilitate construction, initial support with low stiffness and as part of the permanent bearing structure is implemented immediately after the excavation of soft surrounding rock tunnels. Different initial support methods are determined according to different surrounding rock grades. For surrounding rocks of grade IV and above, arch support is generally used during the support process. The construction steps of arch support are generally: measurement and layout → erecting arch → drilling locking anchor holes → installing locking anchors → welding longitudinal connecting bars → next process. The arch can be made of I-beams, H-beams, steel grilles or steel bars. The overall stiffness of the arch is large, which can provide a certain support stiffness in the early stage of tunnel excavation.

[0004] However, a lot of noise will be generated during the construction process. In the current industrialized society, noise hazards have become one of the major hazards affecting people's physical and mental health, and have received widespread attention from all walks of life. Most of the noise is caused by vibration. The existence of vibration may cause damage to related parts inside the machinery and reduce the service life of the construction machinery. Generally speaking, the main noise sources of construction machinery are the noise generated by the fan, intake noise, and exhaust noise. However, with the continuous noise reduction optimization of the fan system, the optimization of the engine and muffler system, the proportion of fan noise and exhaust noise is getting smaller and smaller. At this time, the noise generated by the hydraulic system begins to appear.

[0005] After long-term operation, hydraulic motors and hydraulic pumps will inevitably wear out, causing looseness and gaps in the components of the hydraulic device, causing the device to vibrate and further generate noise. The traditional method to reduce or eliminate the noise of hydraulic motors and hydraulic pumps is to replace better hydraulic pumps and optimize hydraulic pipelines. This traditional method is costly and takes a long time. Summary of the invention

[0006] In order to solve the above problems, on the one hand, the present invention provides a clamping control system for an arch frame installation trolley, including a trolley, wherein the actuator of the trolley is provided with an actuator enabling valve and an actuator unloading valve, and the actuator enabling valve and the actuator unloading valve are both connected to a controller; a clamping device is provided on the arm of the trolley, and the clamping device is connected to a clamping pressure sensor, and the clamping pressure sensor is also connected to the controller; a display is provided in the operating room of the trolley, and the display is connected to the controller.

[0007] Specifically, the clamping pressure sensor is arranged on the actuator.

[0008] Specifically, the boom at least includes a left working arm, a hanging basket arm and a right working arm.

[0009] Specifically, the controller is connected with the actuator enabling valve, the actuator unloading valve, the clamping pressure sensor and the display through wireless communication or wired communication.

[0010] Specifically, the controller adopts a PLC controller.

[0011] Another aspect of the present invention provides a method for controlling the clamping of an arch mounting trolley, which comprises the following steps:

[0012] S1: Set the upper limit and lower limit of the clamping pressure of the clamping device through the display;

[0013] S2: The clamping pressure sensor obtains the real-time clamping pressure of the clamping device and uploads it to the controller;

[0014] S3: The controller controls the working states of the actuator enabling valve and the actuator unloading valve respectively according to the real-time clamping pressure data obtained by the clamping pressure sensor;

[0015] S31: If the controller detects that the real-time clamping pressure value is less than the set clamping pressure lower limit value, the unloading valve of the control actuator stops working and the enabling valve of the control actuator is in a normal working state;

[0016] S32: If the controller detects that the real-time clamping pressure value is greater than the set clamping pressure upper limit value, the actuator enabling valve is controlled to stop working, and the actuator unloading valve is in a normal working state;

[0017] S33: If the controller detects that the real-time clamping pressure value is within the set clamping pressure upper limit value and lower limit value range, the actuator enabling valve and the actuator unloading valve are both in normal working state.

[0018] The beneficial effects of the present invention are: when the real-time clamping pressure value is less than the set clamping pressure lower limit value, the actuator unloading valve stops working and the actuator enabling valve is in a normal working state; when the real-time clamping pressure value is greater than the set clamping pressure upper limit value, the actuator enabling valve stops working and the actuator unloading valve is in a normal working state, which can greatly reduce the noise of the trolley's hydraulic system during operation and provide a comfortable operating environment for the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 the structures shown in these drawings without paying creative work.

[0020] Figure 1 is a system block diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the present invention;

[0022] In the figure: 1-clamping device, 2-actuator enabling valve, 3-clamping pressure sensor, 4-actuator unloading valve, 5-controller, 6-display, 7-actuator, 8-arm. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The present invention reduces the noise of the hydraulic system by changing the clamping pressure of the clamping device 1, thereby providing a comfortable operating environment for the operator.

[0026] Embodiment 1:

[0027] A clamping control system for an arch frame installation trolley comprises a trolley, wherein an actuator enabling valve 2 and an actuator unloading valve 4 are provided on the actuator 7 of the trolley, and the actuator enabling valve 2 and the actuator unloading valve 4 are both connected to a controller 5; a clamping device 1 is provided on the arm 8 of the trolley, and the clamping device 1 is connected to a clamping pressure sensor 3, and the clamping pressure sensor 3 is also connected to the controller 5; a display 6 is provided in the operating room of the trolley, and the display 6 is connected to the controller 5, and the controller 5 is provided in the electric control cabinet of the arch frame installation trolley.

[0028] Furthermore, in this embodiment, the clamping pressure sensor 3 is used to detect the real-time clamping pressure of the clamping device 1 on the arm 8 of the arch mounting trolley.

[0029] Furthermore, in this embodiment, the display 6 is used to display and set the upper and lower limits of the clamping pressure of the clamping device 1 on the arch mounting trolley arm 8. Specifically, the upper limit of the clamping pressure is set to 17MPa, and the lower limit of the clamping pressure is set to 16MPa.

[0030] Furthermore, in this embodiment, the controller 5 is used to receive the detection result of the clamping pressure sensor 3, and control the actuator enabling valve 2 and the actuator unloading valve 4 according to the detection result.

[0031] Furthermore, in the present embodiment, the clamping pressure sensor 3 is arranged on the actuator 7. When the clamping device 1 is clamping or lifting the arch frame, the clamping pressure sensor 3 will detect the real-time clamping pressure according to the clamping pressure at this time, and upload it to the controller 5. The real-time controller 5 controls the actuator enabling valve 2 and the actuator unloading valve 4 according to the result detected by the clamping pressure sensor 3. If the controller 5 detects that the actual value of the clamping pressure sensor 3 is less than the set clamping pressure lower limit of 16MPa, the actuator unloading valve 4 is controlled to stop working, and the actuator enabling valve 2 is in a normal working state; when the controller 5 detects that the actual value of the clamping pressure sensor 3 is greater than the set clamping pressure upper limit of 17MPa, the actuator enabling valve 2 is controlled to stop working, and the actuator unloading valve 4 is in a normal working state.

[0032] Furthermore, in this embodiment, the arm frame 8 at least includes a left working arm, a hanging basket arm and a right working arm.

[0033] Furthermore, in this embodiment, the controller 5 is connected to the actuator enabling valve 2 , the actuator unloading valve 4 , the clamping pressure sensor 3 and the display 6 via Bluetooth.

[0034] Furthermore, in this embodiment, the controller 5 is a PLC controller.

[0035] Furthermore, the control method of this embodiment is:

[0036] Step 1: Display and set the upper limit and lower limit of the clamping pressure of the clamping device 1 on the arm frame 8 of the arch mounting trolley through the display 6. Specifically, the upper limit of the clamping pressure is set to 17 MPa, and the lower limit of the clamping pressure is set to 16 MPa;

[0037] Step 2: Obtain the real-time clamping pressure of the clamping device 1 on the arm frame 8 of the arch mounting trolley through the clamping pressure sensor 3, and upload it to the controller 5 via Bluetooth;

[0038] Step 3: The controller 5 controls the working states of the actuator enabling valve 2 and the actuator unloading valve 4 respectively according to the real-time clamping pressure data results obtained by the clamping pressure sensor 3;

[0039] If the controller 5 detects that the real-time clamping pressure value is less than the set clamping pressure lower limit value 16MPa, the control actuator unloading valve 4 stops working and the control actuator enabling valve 2 is in a normal working state;

[0040] If the controller 5 detects that the real-time clamping pressure value is greater than the set clamping pressure upper limit value 17MPa, the actuator enabling valve 2 is controlled to stop working, and the actuator unloading valve 4 is in a normal working state;

[0041] If the controller 5 detects that the real-time clamping pressure value is within the set clamping pressure upper limit value 16 MPa and lower limit value 17 MPa, the actuator enabling valve 2 and the actuator unloading valve 4 are both in a normal working state.

[0042] After many experiments, this embodiment can significantly reduce the noise of the hydraulic system of the arch frame installation trolley during construction, and can provide a comfortable operating environment for the operator.

[0043] The beneficial technical effects of this embodiment are as follows: the display 6 is used to set the upper and lower pressure limits of the clamping pressure, and the clamping pressure sensor 3 is used to detect the real-time clamping pressure value of the arch frame clamping device 1. And the actuator unloading valve 4 and the actuator enabling valve 2 are controlled according to the detection results. When the controller 5 detects that the actual value of the clamping pressure sensor 3 is less than the set lower limit of the clamping pressure, the actuator unloading valve 4 stops working and the actuator enabling valve 2 is in a normal working state; when the controller 5 detects that the actual value of the clamping pressure sensor 3 is greater than the set upper limit of the clamping pressure, the actuator unloading valve 4 works normally and the actuator enabling valve 2 is in a stopped state; thereby achieving noise reduction optimization to greatly reduce the noise of the hydraulic system during operation, allowing the operator to operate the arch frame vehicle in a comfortable environment.

[0044] Embodiment 2:

[0045] In order to ensure the efficiency of data transmission, in this embodiment: a clamping control system for an arch frame installation trolley, comprising a trolley, the actuator 7 of the trolley is provided with an actuator enabling valve 2 and an actuator unloading valve 4, and the actuator enabling valve 2 and the actuator unloading valve 4 are both connected to the controller 5; a clamping device 1 is provided on the arm 8 of the trolley, the clamping device 1 is connected to a clamping pressure sensor 3, and the clamping pressure sensor 3 is also connected to the controller 5; a display 6 is provided in the operating room of the trolley, the display 6 is connected to the controller 5, and the controller 5 is arranged in the electrical control cabinet of the arch frame installation trolley.

[0046] Furthermore, in this embodiment, the clamping pressure sensor 3 is used to detect the real-time clamping pressure of the clamping device 1 on the arm 8 of the arch mounting trolley.

[0047] Furthermore, in this embodiment, the display 6 is used to display and set the upper and lower limits of the clamping pressure of the clamping device 1 on the arch mounting trolley arm 8. Specifically, the upper limit of the clamping pressure is set to 17MPa, and the lower limit of the clamping pressure is set to 16MPa.

[0048] Furthermore, in this embodiment, the controller 5 is used to receive the detection result of the clamping pressure sensor 3, and control the actuator enabling valve 2 and the actuator unloading valve 4 according to the detection result.

[0049] Furthermore, in the present embodiment, the clamping pressure sensor 3 is arranged on the actuator 7. When the clamping device 1 is clamping or lifting the arch frame, the clamping pressure sensor 3 will detect the real-time clamping pressure according to the clamping pressure at this time, and upload it to the controller 5. The real-time controller 5 controls the actuator enabling valve 2 and the actuator unloading valve 4 according to the result detected by the clamping pressure sensor 3. If the controller 5 detects that the actual value of the clamping pressure sensor 3 is less than the set clamping pressure lower limit of 16MPa, the actuator unloading valve 4 is controlled to stop working, and the actuator enabling valve 2 is in a normal working state; when the controller 5 detects that the actual value of the clamping pressure sensor 3 is greater than the set clamping pressure upper limit of 17MPa, the actuator enabling valve 2 is controlled to stop working, and the actuator unloading valve 4 is in a normal working state.

[0050] Furthermore, in this embodiment, the arm frame 8 at least includes a left working arm, a hanging basket arm and a right working arm.

[0051] Furthermore, in this embodiment, the controller 5 is connected to the actuator enabling valve 2 , the actuator unloading valve 4 , the clamping pressure sensor 3 and the display 6 via a CAN bus.

[0052] Furthermore, in this embodiment, the controller 5 is a PLC controller.

[0053] Furthermore, the control method of this embodiment is:

[0054] Step 1: Display and set the upper limit and lower limit of the clamping pressure of the clamping device 1 on the arm frame 8 of the arch mounting trolley through the display 6. Specifically, the upper limit of the clamping pressure is set to 17 MPa, and the lower limit of the clamping pressure is set to 16 MPa;

[0055] Step 2: Obtain the real-time clamping pressure of the clamping device 1 on the arm frame 8 of the arch mounting trolley through the clamping pressure sensor 3, and upload it to the controller 5 through the CAN bus;

[0056] Step 3: The controller 5 controls the working states of the actuator enabling valve 2 and the actuator unloading valve 4 respectively according to the real-time clamping pressure data results obtained by the clamping pressure sensor 3;

[0057] If the controller 5 detects that the real-time clamping pressure value is less than the set clamping pressure lower limit value 16MPa, the control actuator unloading valve 4 stops working and the control actuator enabling valve 2 is in a normal working state;

[0058] If the controller 5 detects that the real-time clamping pressure value is greater than the set clamping pressure upper limit value 17MPa, the actuator enabling valve 2 is controlled to stop working, and the actuator unloading valve 4 is in a normal working state;

[0059] If the controller 5 detects that the real-time clamping pressure value is within the set clamping pressure upper limit value 16 MPa and lower limit value 17 MPa, the actuator enabling valve 2 and the actuator unloading valve 4 are both in a normal working state.

[0060] After many experiments, this embodiment can significantly reduce the noise of the hydraulic system of the arch frame installation trolley during construction, and can provide a comfortable operating environment for the operator.

[0061] The beneficial technical effects of this embodiment are as follows: the display 6 is used to set the upper and lower pressure limits of the clamping pressure, and the clamping pressure sensor 3 is used to detect the real-time clamping pressure value of the arch frame clamping device 1. And the actuator unloading valve 4 and the actuator enabling valve 2 are controlled according to the detection results. When the controller 5 detects that the actual value of the clamping pressure sensor 3 is less than the set lower limit of the clamping pressure, the actuator unloading valve 4 stops working and the actuator enabling valve 2 is in a normal working state; when the controller 5 detects that the actual value of the clamping pressure sensor 3 is greater than the set upper limit of the clamping pressure, the actuator unloading valve 4 works normally and the actuator enabling valve 2 is in a stopped state; thereby achieving noise reduction optimization to greatly reduce the noise of the hydraulic system during operation, allowing the operator to operate the arch frame vehicle in a comfortable environment.

[0062] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship represented by the terms "upper", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "connected" and "set" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "connected" and "set" may explicitly or implicitly include one or more of the features. Moreover, the terms "connected", "set", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0063] The above embodiments describe the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the changes and modifications made by those skilled in the art shall be within the scope of protection of the appended claims of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A clamping control method for an arch frame installation trolley, implemented based on a clamping control system for an arch frame installation trolley, characterized in that: The clamping control system for an arch mounting trolley comprises a trolley, an actuator (7) of the trolley is provided with an actuator enabling valve (2) and an actuator unloading valve (4), and the actuator enabling valve (2) and the actuator unloading valve (4) are both connected to a controller (5); a clamping device (1) is provided on the arm frame (8) of the trolley, and the clamping device (1) is connected to a clamping pressure sensor (3), and the clamping pressure sensor (3) is also connected to the controller (5); a display (6) is provided in the operating room of the trolley, and the display (6) is connected to the controller (5), and the control method comprises the following steps: S1: Setting the upper limit and lower limit of the clamping pressure of the clamping device (1) through the display (6); S2: The clamping pressure sensor (3) obtains the real-time clamping pressure of the clamping device (1) and uploads it to the controller (5); S3: The controller (5) controls the working states of the actuator enabling valve (2) and the actuator unloading valve (4) respectively according to the real-time clamping pressure data result obtained by the clamping pressure sensor (3); S31: If the controller (5) detects that the real-time clamping pressure value is less than the set clamping pressure lower limit value, the actuator unloading valve (4) is controlled to stop working, and the actuator enabling valve (2) is controlled to be in a normal working state; S32: If the controller (5) detects that the real-time clamping pressure value is greater than the set clamping pressure upper limit value, the actuator enabling valve (2) is controlled to stop working, and the actuator unloading valve (4) is in a normal working state; S33: If the controller (5) detects that the real-time clamping pressure value is within the range of the set clamping pressure upper limit value and the set clamping pressure lower limit value, the actuator enabling valve (2) and the actuator unloading valve (4) are both in a normal working state.

2. A method for controlling the clamping of an arch mounting trolley as claimed in claim 1, characterized in that: The clamping pressure sensor (3) is arranged on the actuator (7).

3. A method for controlling the clamping of an arch mounting trolley as claimed in claim 2, characterized in that: The arm frame (8) comprises at least a left working arm, a hanging basket arm and a right working arm.

4. A method for controlling the clamping of an arch mounting trolley as claimed in claim 3, characterized in that: The controller (5) is connected to the actuator enabling valve (2), the actuator unloading valve (4), the clamping pressure sensor (3) and the display (6) via wireless communication or wired communication.

5. A method for controlling the clamping of an arch mounting trolley as claimed in claim 4, characterized in that: The controller (5) is a PLC controller.

Images