Measuring device and detection system

Abstract

The utility model discloses a measuring device and a detection system, and relates to the technical field of detection, the measuring device comprises a base, an adjusting assembly, a measuring part, a driving assembly and a control device, the adjusting assembly comprises a fixing rod and an adjusting rod which are arranged in an up-down extending mode, the fixing rod is installed on the base, and the adjusting rod is installed on the base. The adjusting rod is movably arranged in the vertical direction relative to the fixed rod; the measuring part is installed around the adjusting rod. The driving assembly comprises a driving device and a transmission mechanism, the transmission mechanism is connected between the driving device and the adjusting rod, and the transmission mechanism is used for converting the driving stroke of the driving device into the up-down moving stroke of the adjusting rod; the driving device is controlled to work through the control device, so that the measuring part can be adjusted to the position capable of being matched with the total station for detection in the vertical direction, a detector does not need to climb to adjust the position of the detection device again, repeated readjustment of the position of the detection device is avoided, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a measuring device and a detection system. Background Art

[0002] The Technical Regulations for Safety of Hoisting Machinery (TSG 51-2023) stipulates that bridge (gantry) cranes should undergo static stiffness tests and the static stiffness should comply with the regulations. If the design documents do not specify the static stiffness of the main beam, the static stiffness f of the bridge (gantry) crane main beam at the mid-span position can be determined according to the working level of the whole machine: A1~A3 level, f≤S / 700, A4~A6 level, f≤S / 800, A7 and A8 level f≤S / 1000.

[0003] At present, the static stiffness of lifting machinery is generally measured by measuring instruments such as levels, theodolites or total stations. The static stiffness value is the difference in vertical distance between the no-load and rated load (stable reading when hoisted) scales or the difference in vertical coordinates of the prism (reflector). However, during the on-site measurement, due to the two loads on the lifting machinery, the prism or reflector installed on the lifting machinery may be blocked by other parts of the lifting machinery body. The inspectors need to reinstall the prism, which reduces the measurement efficiency and accuracy. For larger lifting machinery, the inspectors need to climb up to adjust, which also increases the measurement risk. Utility Model Content

[0004] The main purpose of the utility model is to provide a measuring device and a detection system, aiming to improve the detection efficiency.

[0005] In order to achieve the above-mentioned object, the measuring device proposed in the present invention comprises:

[0006] Base;

[0007] An adjustment assembly, comprising a fixing rod and an adjustment rod both extending vertically, the fixing rod being mounted on the base, and the adjustment rod being movably arranged vertically relative to the fixing rod;

[0008] A measuring part, rotatably mounted on the adjusting rod around a rotation axis extending up and down;

[0009] A driving assembly, comprising a driving device and a transmission mechanism, wherein the transmission mechanism is connected between the driving device and the adjusting rod, and the transmission mechanism is used to convert the driving stroke of the driving device into the up and down movable stroke of the adjusting rod; and,

[0010] The control device is electrically connected to the driving device and is used to control the operation of the driving device.

[0011] In one embodiment, the drive device has an output shaft;

[0012] The transmission mechanism comprises a tooth portion and a rack, wherein the tooth portion is coaxially connected to the output shaft, the rack is connected to the adjustment rod, and the rack is extended in the up-down direction and meshed with the tooth portion.

[0013] In one embodiment, the fixing rod is hollow, and an opening is arranged on the peripheral side of the fixing rod;

[0014] The adjusting rod is sleeved in the fixing rod and has a connecting rod section located in the fixing rod, and the rack is fixed to the connecting rod section and exposed in the opening;

[0015] The toothed portion includes an end face gear, and the end face gear faces the opening to mesh with the rack.

[0016] In one embodiment, a limiting structure is provided between the connecting rod segment and the fixing rod, and the limiting structure includes a limiting groove extending vertically from one of the connecting rod segment and the fixing rod, and a limiting protrusion cooperating with the limiting groove.

[0017] In one embodiment, an elastic pad is further provided between the fixing rod and the adjusting rod.

[0018] In one embodiment, the driving device includes an encoding motor, the encoding motor includes an encoder and a driving motor, the driving motor has the output shaft, and the control device is electrically connected to the encoder and the driving motor for controlling the operation of the driving motor according to the encoder.

[0019] In one embodiment, the driving device is fixedly connected to the fixing rod.

[0020] In one embodiment, the measuring part is provided with a hollow mounting rod, the mounting rod is provided with a pin hole, the mounting rod is sleeved on the outer circumference of the adjusting rod, and the mounting rod is rotatably arranged relative to the adjusting rod around an axis extending up and down;

[0021] The measuring device also includes a locking pin, which is inserted into the pin hole to abut against the adjusting rod.

[0022] In one embodiment, at least a portion of the base is made of magnetic material.

[0023] The utility model also provides a detection system, comprising the above-mentioned measuring device and total station, wherein the measuring device comprises:

[0024] Base;

[0025] An adjustment assembly, comprising a fixing rod and an adjustment rod both extending vertically, the fixing rod being mounted on the base, and the adjustment rod being movably arranged vertically relative to the fixing rod;

[0026] A measuring part, rotatably mounted on the adjusting rod around a rotation axis extending up and down;

[0027] A driving assembly, comprising a driving device and a transmission mechanism, wherein the transmission mechanism is connected between the driving device and the adjusting rod, and the transmission mechanism is used to convert the driving stroke of the driving device into the up and down movable stroke of the adjusting rod; and,

[0028] The control device is electrically connected to the driving device and is used to control the operation of the driving device.

[0029] In the technical solution of the utility model, the fixing rod is fixed on the base, and the measuring part is installed on the adjusting rod. The adjusting rod is driven by the driving assembly to move in the up and down direction, and the measuring part can be rotatably arranged relative to the adjusting rod. In this way, the measuring part can be adjusted in the up and down direction and in angle. During measurement, the base of the measuring device can be installed on the lifting machinery. When there is no load, the height position and angle of the measuring part can be adjusted, and the no-load coordinates can be defined in cooperation with the total station. When there is load, the lifting machinery is deformed, and the measuring part is blocked by other parts on the lifting machinery and cannot cooperate with the total station for detection. The driving device can be controlled to work by the control device, so that the measuring part can be adjusted in the up and down direction to a position that can cooperate with the total station for detection. There is no need for the detection personnel to re-climb to adjust the position of the detection device, thus avoiding repeated readjustment of the position of the detection device and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of an embodiment of a measuring device provided by the utility model;

[0032] Figure 2 for Figure 1 Middle AA section;

[0033] Figure 3 for Figure 2 Middle BB cross-section.

[0034] Description of Figure Numbers:

[0035] 100. Measuring device; 1. Base; 2. Fixing rod; 2a. Opening; 3. Adjusting rod; 4. Measuring part; 5. Driving assembly; 51. Driving device; 52. Transmission mechanism; 521. Tooth part; 522. Rack; 6. Mounting rod; 7. Locking pin; 8. Fixing bracket.

[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0040] The Technical Regulations for Safety of Hoisting Machinery (TSG 51-2023) stipulates that bridge (gantry) cranes should undergo static stiffness tests, and the static stiffness should comply with regulations. If the design document does not specify the static stiffness of the main beam, the static stiffness f of the bridge (gantry) crane at the mid-span position of the main beam can be determined according to the working level of the whole machine: A1~A3 level, f≤S / 700, A4~A6 level, f≤S / 800, A7 and A8 level f≤S / 1000. At present, the static stiffness of hoisting machinery is generally measured by measuring instruments such as levels, theodolites or total stations. The static stiffness value is the difference in vertical distance between the no-load and rated load (stable reading when hoisting) scales or the difference in vertical coordinates of the prism (reflector). However, during the on-site measurement process, since the lifting machinery is subject to two types of loads, the prism or reflector installed on the lifting machinery may be blocked by other parts of the lifting machinery body. The inspection personnel need to reinstall the prism, which reduces the measurement efficiency and accuracy. For larger lifting machinery, the inspection personnel need to climb up to make adjustments, which also increases the measurement risk.

[0041] The utility model provides a measuring device.

[0042] See also Figures 1 to 3 In one embodiment of the utility model, the measuring device 100 includes a base 1, an adjustment component, a measuring part 4, a driving component 5 and a control device, the adjustment component includes a fixed rod 2 and an adjusting rod 3 both extending vertically, the fixed rod 2 is installed on the base 1, and the adjusting rod 3 is movably arranged in the vertical direction relative to the fixed rod 2; the measuring part 4 is rotatably installed on the adjusting rod 3 around a rotation axis extending vertically; the driving component 5 includes a driving device 51 and a transmission mechanism 52, the transmission mechanism 52 is connected between the driving device 51 and the adjusting rod 3, and the transmission mechanism 52 is used to convert the driving stroke of the driving device 51 into the vertical movable stroke of the adjusting rod 3; the control device is electrically connected to the driving device 51, and is used to control the operation of the driving device 51.

[0043] It should be noted that the measuring part 4 can be a prism or a reflective sheet, etc. When performing static stiffness detection, the measuring device 100 and the total station need to be used in conjunction for detection. When the crane is not loaded, after the measuring device 100 is installed, the total station is set up and leveled, and the prism and the total station are used in conjunction to detect and define the coordinate values ​​under no-load conditions. When the crane is loaded with the rated load, the vertical coordinate values ​​are detected again, and the difference between the two vertical coordinates is used to provide measurement data for the static stiffness detection of the crane.

[0044] It should also be noted that in the actual detection process, if the measuring part 4 (such as the prism crosshairs) is found to be blocked during the load measurement of the lifting machinery, an adjustment instruction can be sent through remote control, and the control device controls the drive device 51 to work according to the received adjustment instruction so that the measuring part 4 is not blocked.

[0045] In the technical solution of the utility model, the fixing rod 2 is fixed on the base 1, and the measuring part 4 is installed on the adjusting rod 3. The adjusting rod 3 is driven by the driving assembly 5 to move in the up and down direction, and the measuring part 4 can be rotatably arranged relative to the adjusting rod 3. In this way, the measuring part 4 can be adjusted in the up and down direction and in angle. During measurement, the base 1 of the measuring device 100 can be installed on a lifting machine. When there is no load, the height and angle of the measuring part 4 can be adjusted, and the no-load coordinates can be defined in cooperation with the total station. When there is load, the lifting machine is deformed, and the measuring part 4 is blocked by other parts on the lifting machine and cannot cooperate with the total station for detection. The control device can control the driving device 51 to work, so that the measuring part 4 can be adjusted in the up and down direction to a position that can cooperate with the total station for detection. There is no need for the detection personnel to re-climb to adjust the position of the detection device, thereby avoiding repeated readjustment of the position of the detection device and improving the detection efficiency.

[0046] Specifically, in this embodiment, the driving device 51 has an output shaft; the transmission mechanism 52 includes a toothed portion 521 and a rack 522, the toothed portion 521 is coaxially connected to the output shaft, the rack 522 is connected to the adjustment rod 3, the rack 522 is extended in the up-down direction and meshes with the toothed portion 521. In this way, the rotation stroke output by the driving device 51 can be converted into an activity stroke of the rack 522 in the up-down direction through the cooperation between the toothed portion 521 and the rack 522, and the rack 522 drives the adjustment rod 3 to move up and down, so as to ensure that the measuring part 4 can be unobstructed and can cooperate with the total station for detection at any time.

[0047] It is understandable that the toothed portion 521 may be a flat gear or a conical gear, etc. Of course, in addition to the above-mentioned gear and rack 522 matching form, it may also be a connecting rod drive, a lead screw structure, etc., which will not be described in detail here, and can be specifically designed according to actual conditions, and this specification embodiment does not limit this.

[0048] It should be noted that the rack 522 can be provided separately or can be a structure formed on the outer peripheral wall of the adjusting rod 3. The specific design can be based on actual conditions, and the embodiments of this specification do not limit this.

[0049] Furthermore, in a specific embodiment, the fixed rod 2 is hollow, and an opening 2a is provided on the peripheral side of the fixed rod 2; the adjusting rod 3 is sleeved in the fixed rod 2, and has a connecting rod section located in the fixed rod 2, and the rack 522 is fixed to the connecting rod section and exposed in the opening 2a; the toothed portion 521 includes an end face gear, and the end face gear faces the opening 2a to mesh with the rack 522. In this configuration, the rack 522 is located in the fixed rod 2, and the end face gear faces the opening 2a of the fixed rod 2, which reduces the volume of the measuring device 100 to a certain extent, and the structure is more compact. At the same time, the rack 522 can ensure cleanliness and avoid being completely exposed, so as to reduce meshing wear.

[0050] Furthermore, in this embodiment, a limiting structure is provided between the connecting rod section and the fixing rod 2, and the limiting structure includes a limiting groove provided on one of the connecting rod section and the fixing rod 2 and extending in the vertical direction, and a limiting convex portion cooperating with the limiting groove. Thus, in the range of movement of the adjusting rod 3 relative to the fixing rod 2, when the limiting convex portion abuts against the upper end wall of the limiting groove, the measuring portion 4 is adjusted to the highest position, and when the limiting convex portion abuts against the lower end wall of the limiting groove, the measuring portion 4 is adjusted to the lowest position, so the range of movement of the adjusting rod 3 depends on the length of the extending of the limiting groove in the vertical direction.

[0051] It can be understood that the lengths of the adjusting rod 3, the fixing rod 2, and the limiting groove can be set according to actual conditions and actual needs to ensure that during the elastic deformation of the lifting machinery, the adjustment stroke of the measuring part 4 can be sufficient to ensure coordination with the total station.

[0052] Furthermore, since the fixed rod 2 is hollow, the adjusting rod 3 is sleeved inside the fixed rod 2, there is a gap between the outer peripheral wall of the adjusting rod 3 and the inner peripheral wall of the fixed rod 2, and the measuring part 4 is connected to the adjusting rod 3, when the adjusting rod 3 moves up and down, the adjusting rod 3 is prone to sway and shake, and is not easy to cooperate with the total station. Therefore, in this embodiment, an elastic pad is further provided between the fixed rod 2 and the adjusting rod 3. In this way, the elastic pad can play a role in stabilizing and limiting the adjusting rod 3 without affecting the up and down movement of the adjusting rod 3.

[0053] The elastic pad can be a rubber pad or a silicone pad, etc., and can be specifically designed according to actual conditions, and the embodiments of this specification do not limit this.

[0054] Specifically, in this embodiment, the driving device 51 includes an encoding motor, the encoding motor includes an encoder and a driving motor, the driving motor has the output shaft, and the control device is electrically connected to the encoder and the driving motor, and is used to control the driving motor to work according to the encoder. The encoder is used to measure the rotation position, speed and direction of the motor. The encoder of the encoding motor will continuously output position and speed information. The control device can adjust the control signal of the motor according to these feedback information to achieve precise control and positioning of the motor. This closed-loop control system can ensure that the motor can operate stably under various working conditions and meet the requirements of precise control.

[0055] Furthermore, in a specific embodiment, the driving device 51 is fixedly connected to the fixing rod 2. In this way, all components of the measuring device 100 are installed on the base 1, and when fixing the measuring device 100 to the crane, only the base 1 needs to be fixed.

[0056] Furthermore, in this embodiment, the measuring part 4 is provided with a hollow mounting rod 6, the mounting rod 6 is provided with a pin hole, the mounting rod 6 is sleeved on the outer periphery of the adjusting rod 3, and the mounting rod 6 is rotatably arranged relative to the adjusting rod 3 around an axis extending up and down; the measuring device 100 also includes a locking pin 7, the locking pin 7 is passed through the pin hole to abut against the adjusting rod 3. When the rotation angle of the measuring part 4 needs to be adjusted, the locking pin 7 can be loosened, and then the measuring part 4 is rotated to a suitable angle, and then the locking pin 7 is locked.

[0057] It should be noted that during the measurement process, due to the effect of gravity, the direction of elastic deformation of the crane is in the up and down direction, and the determination of the up and down position of the measuring part 4 needs to be adjusted, but generally does not involve angle rotation adjustment. Therefore, between detection and measurement, the angle of the measuring part 4 can be adjusted before the measuring device 100 is installed on the crane.

[0058] Furthermore, in this embodiment, at least part of the base 1 is made of magnetic material. Thus, when the measuring device 100 needs to be installed, the base 1 can be directly fixed to mechanical equipment such as a crane by magnetic attraction, which is simple to fix and operate, and is convenient for high-altitude operations.

[0059] Of course, in addition to the above-mentioned fixing methods, it can also be set in the form of adhesive bonding, or other possible connection forms can be used. The specific ones can be determined according to actual conditions, and the embodiments of this specification do not limit this.

[0060] The utility model also proposes a detection system, which includes a total station and a measuring device 100. The specific structure of the measuring device 100 refers to the above embodiment. Since the detection system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0061] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A measuring device, characterized in that: include: Base; An adjustment assembly, comprising a fixing rod and an adjustment rod both extending vertically, the fixing rod being mounted on the base, and the adjustment rod being movably arranged vertically relative to the fixing rod; A measuring part, rotatably mounted on the adjusting rod around a rotation axis extending up and down; A driving assembly, comprising a driving device and a transmission mechanism, wherein the transmission mechanism is connected between the driving device and the adjusting rod, and the transmission mechanism is used to convert the driving stroke of the driving device into the up and down movable stroke of the adjusting rod; and, The control device is electrically connected to the driving device and is used to control the operation of the driving device.

2. The measuring device according to claim 1, characterized in that The driving device has an output shaft; The transmission mechanism comprises a tooth portion and a rack, wherein the tooth portion is coaxially connected to the output shaft, the rack is connected to the adjustment rod, and the rack is extended in the up-down direction and meshed with the tooth portion.

3. The measuring device according to claim 2, characterized in that The fixing rod is hollow, and an opening is arranged on the peripheral side of the fixing rod; The adjusting rod is sleeved in the fixing rod and has a connecting rod section located in the fixing rod, and the rack is fixed to the connecting rod section and exposed in the opening; The toothed portion includes an end face gear, and the end face gear faces the opening to mesh with the rack.

4. The measuring device according to claim 3, characterized in that A limiting structure is arranged between the connecting rod section and the fixing rod, and the limiting structure comprises a limiting groove extending in the vertical direction and arranged on one of the connecting rod section and the fixing rod, and a limiting protrusion matched with the limiting groove.

5. The measuring device according to claim 3, characterized in that An elastic pad is also provided between the fixing rod and the adjusting rod.

6. The measuring device according to claim 2, characterized in that The driving device includes an encoding motor, the encoding motor includes an encoder and a driving motor, the driving motor has the output shaft, and the control device is electrically connected to the encoder and the driving motor, and is used to control the driving motor to work according to the encoder.

7. The measuring device according to any one of claims 2 to 6, characterized in that: The driving device is fixedly connected to the fixing rod.

8. The measuring device according to claim 1, characterized in that The measuring part is provided with a hollow mounting rod, the mounting rod is provided with a pin hole, the mounting rod is sleeved on the outer circumference of the adjusting rod, and the mounting rod is rotatably arranged relative to the adjusting rod around an axis extending up and down; The measuring device also includes a locking pin, which is inserted into the pin hole to abut against the adjusting rod.

9. The measuring device according to claim 1, characterized in that At least part of the base is made of magnetic material.

10. A detection system, characterized in that: It comprises a surveying device and a total station as described in any one of claims 1 to 9.

Images