Force measuring device, equipment with tipping trend monitoring function and system

Abstract

The invention relates to a force measuring device, and equipment and a system with a tipping trend monitoring function, and relates to the technical field of force measurement of rail equipment. The force measuring device comprises a first support, a hydraulic cylinder, a hydraulic system and a contact assembly, the first support is installed on an object to be measured, a telescopic rod of the hydraulic cylinder is fixedly connected with the first support, a rodless cavity of the hydraulic cylinder has initial pressure, and the hydraulic system comprises a first pipeline, a second pipeline and a pressure sensor. Wherein the first pipeline is connected with a rod cavity of the hydraulic cylinder, the second pipeline is connected with a rodless cavity of the hydraulic cylinder, and the pressure sensor is installed on the second pipeline; the contact assembly is fixedly connected with the hydraulic cylinder and used for transmitting externally applied force, the telescopic rod of the hydraulic cylinder is stressed, the pressure sensor detects that the pressure change exceeds a threshold value, and the pressure sensor can provide real-time pressure feedback information so as to timely detect whether the to-be-detected object has a tipping risk or not.

Description

Technical Field

[0001] The present invention relates to the technical field of force measurement of rail equipment, and in particular to a force measurement device, equipment and system capable of monitoring overturning tendency. Background Art

[0002] In the operation process involving large-scale mechanical equipment, the stability of the equipment is one of the key factors to ensure construction safety. However, in a complex and changing working environment, large-scale mechanical equipment faces a high risk of tipping over due to insufficient ground bearing capacity, improper operation or excessive equipment load.

[0003] Currently, in actual operations, most prevention and response measures still rely on emergency intervention of impending rollovers through mechanical structures. Such intervention measures usually include designing reinforced mechanical structures, installing emergency stabilization devices, and incorporating strict monitoring and early warning mechanisms into operating procedures. Although these methods can reduce the risk of rollover to a certain extent, they rely heavily on the operator's experience and immediate response, rather than a continuous, automated monitoring system. Summary of the invention

[0004] The present invention provides a force measuring device, which is used to solve the technical problem that a device cannot react in time when a risk of tipping over is about to occur.

[0005] The present invention provides a force measuring device, comprising:

[0006] A first bracket, wherein the first bracket is mounted on the object to be tested;

[0007] A hydraulic cylinder, wherein the telescopic rod of the hydraulic cylinder is fixedly connected to the first bracket, and the rodless chamber of the hydraulic cylinder has an initial pressure;

[0008] A hydraulic system, the hydraulic system comprising a first pipeline, a second pipeline and a pressure sensor, the first pipeline being connected to a rod chamber of a hydraulic cylinder, the second pipeline being connected to a rodless chamber of the hydraulic cylinder, and the pressure sensor being connected to the second pipeline;

[0009] A contact assembly is fixedly connected to the hydraulic cylinder.

[0010] In one embodiment, the hydraulic system further comprises a pressure gauge and a stop valve, wherein the pressure gauge and the stop valve are arranged on the second pipeline, and the pressure gauge and the pressure sensor are both located between the stop valve and the hydraulic cylinder.

[0011] In one embodiment, the hydraulic system also includes a third pipeline, an oil tank and an overflow valve, the first pipeline and the third pipeline are both connected to the oil tank, the third pipeline is connected to the second pipeline, the connection point between the third pipeline and the second pipeline is located between the stop valve and the hydraulic cylinder, and the overflow valve is arranged on the third pipeline.

[0012] In one embodiment, the force measuring device further comprises an adjusting rod, which is fixedly connected to the end of the telescopic rod of the hydraulic cylinder, and passes through a first bracket. Adjusting nuts are arranged on both sides of the first bracket, and the adjusting nuts are threadedly matched with the adjusting rod.

[0013] In one embodiment, a plurality of first positioning holes are provided through the end face of the adjusting nut, a plurality of second positioning holes are correspondingly provided on the first bracket, the first positioning holes and the second positioning holes are evenly distributed around the axis of the adjusting rod, positioning pins are provided in the first positioning holes and the second positioning holes, and an infrared sensor is provided on the positioning pins.

[0014] In one embodiment, the contact assembly includes a second bracket and a contact unit, the contact assembly is fixedly connected to the pressure sensor, and the contact unit is mounted on the second bracket.

[0015] In one embodiment, the contact unit is a track wheel, and the track wheel is rotatably arranged on the second bracket via a rotating shaft; or

[0016] The contact unit is a support block, and the support block is fixedly arranged on the second bracket.

[0017] A device with a tipping tendency monitoring function comprises a trolley and a force measuring device according to any one of the above technical solutions, wherein the force measuring device is mounted on the bottom surface of a platform via a first bracket.

[0018] In one embodiment, at least one force measuring device is disposed on each side of the bottom surface of the trolley.

[0019] A tipping tendency monitoring system, comprising:

[0020] Hydraulic cylinder, as an actuator, is used to adjust the posture of the equipment;

[0021] Electric shut-off valve, used to control the flow direction of hydraulic oil, ensuring that the hydraulic cylinder can obtain or release hydraulic oil when needed;

[0022] Electric relief valve, used to adjust the maximum pressure of the system to prevent damage due to overpressure;

[0023] Pressure sensor, used to monitor the pressure changes inside the hydraulic cylinder in real time and transmit the signal to the control system;

[0024] The oil tank stores hydraulic oil and provides the system with the necessary amount of hydraulic oil;

[0025] A reversing valve, the inlet of which is connected to the oil tank, and the outlet of which is connected to the second pipelines on both sides of the equipment;

[0026] An oil pump is used to deliver the hydraulic oil in the oil tank to the hydraulic cylinder;

[0027] The control system includes a controller and an alarm module, which receives a signal from a pressure sensor. The alarm module, the electric stop valve, the electric overflow valve, the pressure sensor, the reversing valve and the oil pump are all connected to the controller.

[0028] Compared with the prior art, the advantages of the present invention are:

[0029] 1. When there is no risk of tipping over, the hydraulic cylinder is in a stationary state, and the hydraulic oil pressure inside it is the initial pressure. When there is a risk of tipping over, the telescopic rod of the hydraulic cylinder is under pressure, and the pressure sensor detects that the pressure change exceeds the threshold. The pressure sensor can provide real-time pressure feedback information to timely detect whether the equipment has the risk of tipping over;

[0030] 2. The hydraulic cylinder is connected to the external pump station through the second pipeline to inject hydraulic oil. When the preset pressure is reached, the stop valve is closed and the pump station is disconnected, so that the force measuring device can provide pressure through the hydraulic oil stored in the hydraulic cylinder and can work without the pump station, making the structure of the force measuring device simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0032] Figure 1 It is a schematic diagram of the overall structure of the force measuring device in the present invention;

[0033] Figure 2 It is one of the structural diagrams of the hydraulic system in the force measuring device;

[0034] Figure 3 This is the second structural diagram of the hydraulic system in the force measuring device;

[0035] Figure 4 It is a schematic diagram of the installation structure of the infrared sensor in the force measurement device;

[0036] Figure 5 It is a schematic diagram of the overall structure of the device with overturning tendency monitoring in the invention;

[0037] Figure 6 It is the structural framework diagram of the tipping trend monitoring system;

[0038] Figure 7 It is a schematic diagram of the side structure in the traveling direction of the device with overturning tendency monitoring in the invention.

[0039] Reference numerals:

[0040] 100-Force measuring device;

[0041] 110- first bracket;

[0042] 120-hydraulic cylinder; 121-adjusting rod; 122-adjusting nut; 123-first positioning hole; 124-second positioning hole; 125-positioning pin; 126-infrared sensor;

[0043] 130-hydraulic system; 131-first pipeline; 132-second pipeline; 133-pressure sensor; 134-pressure gauge; 135-stop valve; 136-third pipeline; 137-oil tank; 138-overflow valve; 139-oil pump; 1391-reversing valve;

[0044] 140-contact assembly; 141-second bracket; 142-contact unit;

[0045] 200-test object; 210-sleeve; 220-inner shaft; 230-support plate; 240-slip ring; 250-support arm;

[0046] 300-Control system. DETAILED DESCRIPTION

[0047] The present invention will be further described below in conjunction with the accompanying drawings.

[0048] like Figure 1 , 2 As shown, the present invention provides a force measuring device, including: a first bracket 110, a hydraulic cylinder 120, a hydraulic system 130 and a contact assembly 140, wherein the first bracket 110 is used to firmly mount the entire device on the object to be measured to ensure stability during the measurement process; the hydraulic cylinder 120 is fixedly connected to the first bracket 110 through its telescopic rod, and a certain initial pressure is pre-filled in the rodless cavity of the hydraulic cylinder 120; the hydraulic system 130 includes a first pipeline 131, a second pipeline 132 and a pressure sensor 133, wherein the first pipeline 131 is connected to the rod cavity of the hydraulic cylinder 120, the second pipeline 132 is connected to the rodless cavity of the hydraulic cylinder 120, and the pressure sensor 133 is installed on the second pipeline 132; the contact assembly 140 is fixedly connected to the hydraulic cylinder 120 to transmit the externally applied force.

[0049] When there is no risk of tipping over, the hydraulic cylinder 120 is in a stationary state, and the hydraulic oil pressure inside it is the initial pressure. When there is a risk of tipping over, the telescopic rod of the hydraulic cylinder 120 is subjected to pressure, and the pressure sensor 133 detects that the pressure change exceeds the threshold value. The pressure sensor 133 can provide real-time pressure feedback information so as to timely detect whether the object to be tested will have a risk of tipping over. During pressure detection, as the hydraulic cylinder 120 is subjected to pressure, the pressure in the rodless cavity changes. This change is detected in real time by the pressure sensor 133 connected to the second pipeline 132 and converted into an electrical signal output. By analyzing the signal output by the sensor and combining it with the structural parameters of the hydraulic cylinder 120, the magnitude of the external force acting on the contact component 140 can be accurately calculated.

[0050] Preferably, Figure 2 As shown, the hydraulic system 130 further includes a pressure gauge 134 and a stop valve 135, which are installed on the second pipeline 132, and the pressure gauge 134 and the pressure sensor 133 are both located between the stop valve 135 and the hydraulic cylinder 120. When hydraulic oil is input into the rodless chamber of the hydraulic cylinder 120, the stop valve 135 is opened, and the pressure change in the hydraulic cylinder 120 is detected by the pressure gauge 134, thereby adjusting the initial pressure in the hydraulic cylinder 120.

[0051] Furthermore, the hydraulic system 130 further includes a third pipeline 136, an oil tank 137 and a relief valve 138. The first pipeline 131 and the third pipeline 136 are both connected to the oil tank 137. Each hydraulic cylinder 120 of the force measuring device may be provided with an oil tank 137. More preferably, the hydraulic cylinders 120 of multiple force measuring devices may be connected to the same oil tank 137, so that the hydraulic oil can be centrally recovered, thereby reducing the number of oil tanks 137.

[0052] like Figure 3 As shown, the oil tank 137 is connected to the second pipeline 132 through the oil pump 139 and the reversing valve 1391. When the hydraulic cylinder 120 needs emergency oil replenishment, the stop valve 135 is first opened, the reversing valve 1391 is switched to connect with the second pipeline 132 corresponding to the specified hydraulic cylinder, and the pressure limit of the relief valve 138 is increased. The hydraulic oil in the oil tank 137 is transported to the hydraulic cylinder 120 through the oil pump 139, thereby increasing the pressure of the hydraulic cylinder 120, and the telescopic rod of the hydraulic cylinder 120 is extended, which plays a certain supporting role on the object to be measured.

[0053] The third pipeline 136 is connected to the second pipeline 132. The connection point between the third pipeline 136 and the second pipeline 132 is located between the stop valve 135 and the hydraulic cylinder 120, so that the stop valve 135 can stop the hydraulic oil in the entire force measuring device. The overflow valve 138 is arranged on the third pipeline 136 to set the rated pressure of the force measuring device, so as to ensure that the pressure sensor 133 works within a safe range and automatically releases the pressure when the rated pressure is exceeded;

[0054] During the installation of the force measuring device, first adjust the rated pressure of the relief valve 138 to 10MPa, and make the rail wheel close to the rail. Place the force measuring device under the four-wheeled trolley, adjust the position of the device, input hydraulic oil into the hydraulic cylinder 120 through the oil inlet, and make the first bracket 110 push to the bottom plate of the four-wheeled trolley. Then, close the stop valve 135, stop the oil supply, and weld the first bracket 110 to the bottom plate of the four-wheeled trolley, or make the first bracket 110. After welding, reopen the stop valve 135, continue to supply oil until the reading of the pressure gauge 134 reaches 5MPa, close the stop valve 135 again, and stop the oil supply. At this time, the reading of the pressure sensor 133 should also be 5MPa. Since the initial pressure is set to 5MPa and the rated pressure of the relief valve 138 is 10MPa, the pressure monitoring range of the device is 5-10MPa, and the pressure monitoring range can be flexibly adjusted by adjusting the initial pressure setting and the rated pressure of the relief valve 138.

[0055] Optional, such as Figure 1 The force measuring device shown also includes an adjusting rod 121, which is fixedly connected to the end of the telescopic rod of the hydraulic cylinder 120. Adjusting nuts 122 are set on both sides of the first bracket 110. The adjusting nuts 122 and the adjusting rod 121 are threadedly matched, so that the operator can adjust the position of the adjusting rod 121 on the first bracket 110 by rotating the adjusting nuts 122, and then fine-tune the position of the hydraulic cylinder 120 to adapt to different measurement requirements.

[0056] Furthermore, Figure 4As shown, a plurality of first positioning holes 123 are provided on the end surface of the adjusting nut 122, and a plurality of second positioning holes 124 are provided at corresponding positions on the first bracket 110. These positioning holes are evenly distributed around the axis of the adjusting rod 121. By inserting the positioning pins 125 into the first positioning holes 123 and the second positioning holes 124, and installing the infrared sensors 126 on the positioning pins 125, the infrared sensors 126 act on the cylinder body of the hydraulic cylinder 120, and after the position of the adjusting rod 121 is fixed, the positioning pins 125 are adjusted so that the distances between all the infrared sensors 126 and the cylinder body of the hydraulic cylinder 120 are the same. Once the telescopic rod of the hydraulic cylinder 120 is bent and deformed, or the connection between the hydraulic cylinder 120 and the first bracket 110 and the contact assembly 140 is damaged and deformed, it can be detected in real time by the plurality of infrared sensors 126, so that the stability of the force measuring device can be timely understood, and the adjusting nut 122 can be prevented from causing the hydraulic cylinder to be installed unstable.

[0057] Optionally, the contact assembly 140 includes a second bracket 141 and a contact unit 142 , and the contact assembly 140 is fixedly connected to the pressure sensor 133 , and the contact unit 142 is mounted on the second bracket 141 .

[0058] In an optional manner, when the force measuring device is installed on a movable platform, such as a rail trolley, the contact unit 142 is a rail wheel, and the rail wheel is rotatably arranged on the second bracket 141 through a rotating shaft. The force measuring device moves with the rail trolley. The rail wheel reduces the friction resistance of the force measuring device, greatly reduces the radial force of the force measuring device, prevents the force measuring device from being deformed during use, and prevents wear on the track and the force measuring device.

[0059] In another optional manner, when the force measuring device is installed on a platform that does not need to be moved, the contact unit 142 is a support block, and the support block is fixedly disposed on the second bracket 141 .

[0060] like Figure 5 As shown, a device with overturning tendency monitoring includes an object to be measured 200 and a force measuring device 100 as described in any one of the above technical solutions. In this embodiment, the object to be measured 200 is a rail trolley, and the force measuring device 100 is installed on the bottom surface of the rail trolley through a first bracket 110. At least one force measuring device 100 is arranged on each side of the bottom surface of the rail trolley. Optionally, one force measuring device 100 is respectively arranged on both sides of the bottom surface of the rail trolley, and two or more force measuring devices 100 can also be respectively arranged on both sides of the object to be measured.

[0061] After installation, the pressure transmitted from the object to be tested acts on the first bracket 110, and the first bracket 110 transmits the force to the hydraulic cylinder 120. Since the compression coefficient of the hydraulic oil is extremely small, the pressure generated inside the hydraulic cylinder 120 outputs an accurate pressure value through the pressure sensor 133. When the object to be tested has a tendency to tip over, if the pressure signal transmitted by one or several force measuring devices increases or decreases abnormally, it can be judged whether the machine has a tipping risk based on the change.

[0062] A method for monitoring a tipping trend is also provided, which is applied to a device with tipping trend monitoring function, and the method comprises:

[0063] Step S10: Open the stop valve, supply hydraulic oil to the rodless chamber of the hydraulic cylinder, so that the hydraulic cylinder has an initial pressure, and the pressure sensor detects the first pressure, that is, the first bracket is in contact with the bottom surface of the equipment platform; the stop valve is an electric stop valve, and the overflow valve is an electric overflow valve;

[0064] Step S20: The hydraulic cylinder with a first pressure pushes the first bracket to contact the bottom surface of the platform, and the first bracket is fixedly connected to the bottom surface of the platform, and the connection can be fixed by welding or bolts;

[0065] Step S30: Open the stop valve again to supply hydraulic oil to the rodless chamber of the hydraulic cylinder, so that the hydraulic cylinder has a working pressure, and the pressure sensor detects a second pressure, which is greater than the first pressure, so that both ends of the force measuring device can stably contact the working surface;

[0066] Step S40: When the real-time pressure signal detected by the pressure sensor exceeds the threshold, the pressure sensor detects a third pressure. When the pressure exceeds the threshold, the duration of the pressure exceeding the threshold is calculated. When the duration of the third pressure exceeds a preset time, it is determined that there is a risk of tipping over and an alarm is issued.

[0067] In this embodiment, the threshold value for the third pressure to exceed the second pressure is set to 2 MPa, and the duration for which the third pressure exceeds the threshold is preset to 3 Sec. When both conditions are met, the control system issues a rollover risk alarm.

[0068] After step S40, the method further includes step S41: opening the stop valve, inputting the hydraulic oil in the oil tank through the oil pump into the second pipeline on the side where the pressure sensor detects the pressure increase, so as to extend the hydraulic cylinder on this side.

[0069] When the risk of tipping is detected, the shut-off valve on the second pipeline corresponding to the side where the pressure increase is detected is immediately opened, and the pressure limit of the relief valve is increased, and the reversing valve is switched to connect to the second pipeline corresponding to the designated hydraulic cylinder, and the hydraulic oil in the oil tank is transported to the hydraulic cylinder through the oil pump, thereby increasing the pressure of the hydraulic cylinder, and the telescopic rod of the hydraulic cylinder is extended, which provides a certain support for the equipment and prevents the equipment from tipping over, providing sufficient processing time for the staff, and collecting the hydraulic oil overflowing from all force measuring devices into one oil tank, which can provide sufficient hydraulic oil for the hydraulic cylinder that needs to be extended without causing an excessive number of structures.

[0070] like Figure 7 As shown, the device with overturning tendency monitoring provided by the present invention has a sleeve 210 sleeved on the outer side of the hydraulic cylinder 120, and the sleeve 210 is fixedly connected to the outer wall of the hydraulic cylinder 120, preferably welded together, to ensure that the sleeve 210 and the hydraulic cylinder 120 are coaxially arranged, because the telescopic rod of the hydraulic cylinder 120 is installed on the object to be tested 200 through the adjusting rod 121, specifically, it is installed on the bottom surface of the outer shell of the object to be tested 200 through the adjusting rod 121, and an inner shaft 220 is installed on the bottom surface of the outer shell of the object to be tested 200, and the adjusting rod 121 passes through the inner shaft 220 and the object to be tested 200, and the inner shaft 220 and the adjusting rod 121 are threadedly matched, and the adjusting rod The other end of 121 is arranged by nut thread cooperation, the nut and the inner shaft 220 are located on both sides of the shell of the object to be measured 200, the adjusting rod 121 is fixed on the object to be measured 200 through the nut and the inner shaft 220, and a sleeve 210 is arranged to be sleeved on the inner shaft 220, and the sleeve 210 can slide up and down in the axial direction of the inner shaft 220. At the same time, support plates 230 are fixedly arranged on both sides of the object to be measured 200, and the support plates 230 are extended downward to both sides of the sleeve 210. A slip ring 240 is arranged on the outside of the sleeve 210, and the slip ring 240 can be slidably arranged on the outside of the sleeve 210, and the support plate 230 and the slip ring 240 are fixedly connected through a support arm 250.

[0071] During the movement of the equipment with overturning tendency monitoring, due to the excessive length of the hydraulic cylinder 120, the contact assembly 140 is fixedly arranged at the lowest end of the hydraulic cylinder 120. When the contact assembly 140 encounters the track connection or the friction resistance between the track and the contact assembly 140 is too large, the length of the hydraulic cylinder 120 increases the force arm, which is easy to cause damage to the hydraulic cylinder 120, thereby causing the force measuring device to fail. The hydraulic cylinder 120 is matched with the inner shaft 220 through the sleeve 210 to limit the telescopic rod of the hydraulic cylinder 120. At the same time, the sleeve 210 is supported by the support plate 230 and the support arm 250. The external limit is provided so that the force measuring device and the object to be measured 200 have better limit, and when the hydraulic cylinder 120 is extended or retracted, the relative positions of the sleeve 210 and the inner shaft 220 change, and the sleeve 210 moves with the main body of the hydraulic cylinder 120, and the slip ring 240 and the sleeve 210 slide relative to each other, which does not affect the extension and retraction of the hydraulic cylinder 120. In summary, by arranging the support plate 230, the support arm 250, the slip ring 240, the sleeve 210 and the inner shaft 220, the protection of the hydraulic cylinder 120 in the normal form is improved, and the hydraulic cylinder 120 is prevented from repeatedly shaking and failing to release the pressure.

[0072] like Figure 6 As shown, the tipping tendency monitoring system comprises:

[0073] Hydraulic cylinder, as an actuator, is used to adjust the posture of the equipment;

[0074] Electric shut-off valve, used to control the flow direction of hydraulic oil, ensuring that the hydraulic cylinder can obtain or release hydraulic oil when needed;

[0075] Electric relief valve, used to adjust the maximum pressure of the system to prevent damage due to overpressure;

[0076] Pressure sensor, used to monitor the pressure changes inside the hydraulic cylinder in real time and transmit the signal to the control system;

[0077] The oil tank stores hydraulic oil and provides the system with the necessary amount of hydraulic oil;

[0078] A reversing valve, the inlet of which is connected to the oil tank, and the outlet of which is connected to the second pipelines on both sides of the equipment;

[0079] An oil pump is used to deliver the hydraulic oil in the oil tank to the hydraulic cylinder;

[0080] The control system 300 includes a controller and an alarm module. The alarm module, electric stop valve, electric overflow valve, pressure sensor, reversing valve and oil pump are all connected to the controller. The controller receives the signal from the pressure sensor and determines whether there is a risk of rollover based on the algorithm. If necessary, it will issue an alarm and start the automatic adjustment program.

[0081] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A force measuring device, characterized in that: include: A first bracket, wherein the first bracket is mounted on the object to be tested; A hydraulic cylinder, wherein the telescopic rod of the hydraulic cylinder is fixedly connected to the first bracket, the hydraulic cylinder has a rod chamber and a rodless chamber, and the rodless chamber of the hydraulic cylinder has an initial pressure; A hydraulic system, the hydraulic system comprising a first pipeline, a second pipeline and a pressure sensor, the first pipeline being connected to a rod chamber of the hydraulic cylinder, the second pipeline being connected to a rodless chamber of the hydraulic cylinder, and the pressure sensor being connected to the second pipeline; as well as A contact assembly is fixedly connected to the hydraulic cylinder.

2. The force measuring device according to claim 1, characterized in that The hydraulic system further comprises a pressure gauge and a stop valve, wherein the pressure gauge and the stop valve are arranged on the second pipeline, and the pressure gauge and the pressure sensor are both located between the stop valve and the hydraulic cylinder.

3. The force measuring device according to claim 2, characterized in that The hydraulic system also includes a third pipeline, an oil tank and an overflow valve. The first pipeline and the third pipeline are both connected to the oil tank. The third pipeline is connected to the second pipeline. The connection point between the third pipeline and the second pipeline is located between the stop valve and the hydraulic cylinder. The overflow valve is arranged on the third pipeline.

4. The force measuring device according to claim 1, characterized in that The force measuring device also includes an adjusting rod, which is fixedly connected to the end of the telescopic rod of the hydraulic cylinder. The adjusting rod passes through the first bracket. Adjusting nuts are arranged on both sides of the first bracket, and the adjusting nuts are threadedly matched with the adjusting rod.

5. The force measuring device according to claim 4, characterized in that The end surface of the adjusting nut is provided with a plurality of first positioning holes, and the first bracket is correspondingly provided with a plurality of second positioning holes. The first positioning holes and the second positioning holes are evenly distributed around the axis of the adjusting rod. Positioning pins are provided in the first positioning holes and the second positioning holes, and infrared sensors are provided on the positioning pins.

6. The force measuring device according to claim 1, characterized in that The contact assembly includes a second bracket and a contact unit. The contact assembly is fixedly connected to the pressure sensor, and the contact unit is mounted on the second bracket.

7. The force measuring device according to claim 6, characterized in that The contact unit is a track wheel, and the track wheel is rotatably arranged on the second bracket via a rotating shaft; or The contact unit is a support block, and the support block is fixedly arranged on the second bracket.

8. A device with a tipping tendency monitoring function, characterized in that: It comprises a trolley and the force measuring device according to any one of claims 1 to 7, wherein the force measuring device is mounted on the bottom surface of the trolley through the first bracket.

9. The device with tipping tendency monitoring according to claim 8, characterized in that: At least one force measuring device is arranged on each side of the bottom surface of the trolley.

10. A tipping trend monitoring system, characterized in that: include: Hydraulic cylinder, as an actuator, is used to adjust the posture of the equipment; Electric shut-off valve, used to control the flow direction of hydraulic oil, ensuring that the hydraulic cylinder can obtain or release hydraulic oil when needed; Electric relief valve, used to adjust the maximum pressure of the system to prevent damage due to overpressure; Pressure sensor, used to monitor the pressure changes inside the hydraulic cylinder in real time and transmit the signal to the control system; The oil tank stores hydraulic oil and provides the system with the necessary amount of hydraulic oil; A reversing valve, the inlet of which is connected to the oil tank, and the outlet of which is connected to the second pipelines on both sides of the equipment; An oil pump is used to deliver the hydraulic oil in the oil tank to the hydraulic cylinder; The control system includes a controller and an alarm module, which receives a signal from a pressure sensor. The alarm module, the electric stop valve, the electric overflow valve, the pressure sensor, the reversing valve and the oil pump are all connected to the controller.

Images