Measuring device and tuyere measuring system of drying oven

Abstract

The utility model relates to the technical field of measurement, and discloses a measuring device and an air nozzle measuring system of a drying oven. The measuring device comprises a reference base, the upper surface of which is horizontally arranged to form a reference surface, and the reference surface is used for placing a measured object; the sliding base is mounted on the reference surface and can slide in the horizontal direction of the reference surface; the supporting framework is fixed on the upper surface of the sliding base; the first end of the cantilever assembly is installed on the supporting framework and can slide in the height direction of the supporting framework, and the height measurer is fixed to the second end of the cantilever assembly. The measuring device provided by the utility model not only overcomes the problems of unstable reference, limited applicability of a measuring tool, large manual operation error, low efficiency and the like in the traditional method, but also improves the measuring precision through the innovative design, expands the measuring range, and improves the working efficiency and the system reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of measurement technology, concretely relates to measuring device and the air nozzle measurement system of oven. BACKGROUND

[0002] In the related art, in the field of coating machines and coating machine accessories, especially in the measurement and adjustment of the horizontal degree of multiple air nozzles of air floating type coating ovens, the traditional method mainly relies on the pull line method and the use of a level. Although these methods can achieve basic measurement of the horizontal degree of the air nozzle to some extent, they have some obvious limitations and challenges. For example, the traditional method usually needs to select a reference point or surface on the oven for measurement. However, due to the possible deformation of the oven itself or uneven installation stress, such reference selection may introduce certain errors, affecting the accuracy of the final measurement results. For example, for high air nozzles or deep recessed positions, the traditional pull line method and level are often difficult to apply, resulting in the inability to accurately obtain measurement data for these positions. This not only limits the measurement range, but also increases the operation difficulty.

[0003] When measuring objects several meters high, traditional tools such as levels need to be operated manually, and human errors are likely to occur during the adjustment and reading of values. In addition, manual adjustment tools lack sufficient support for fine height adjustment, further affecting measurement accuracy. Moreover, using the pull line method or level to measure the height of each air nozzle one by one is tedious and time-consuming. After each adjustment, the tool needs to be recalibrated, reducing overall work efficiency. SUMMARY

[0004] Therefore, the utility model provides a kind of measuring device and the air nozzle measurement system of oven to solve the problems such as low measurement accuracy and slow measurement efficiency in the related art.

[0005] In a first aspect, the utility model provides a kind of measuring device, comprising:

[0006] Reference base, its upper surface is horizontally arranged to form reference surface, and the reference surface is used to place measured object;

[0007] Sliding base, it is installed on the reference surface and is slidably arranged along the horizontal direction of the reference surface;

[0008] Support framework, it is fixed on the upper surface of the sliding base;

[0009] Cantilever assembly and height measurer, the first end of the cantilever assembly is installed on the support framework and is slidably arranged along the height direction of the support framework, and the second end of the cantilever assembly is fixed with the height measurer.

[0010] Beneficial effects: (1) Stable high-precision measurement reference: By using a horizontally arranged reference base as the measurement platform, it ensures that all measurement operations have an absolutely flat and stable reference surface. This feature avoids errors introduced by the oven's own structural problems (such as deformation or uneven installation), providing more reliable and consistent measurement results.

[0011] (2) Efficient horizontal movement mechanism: The sliding base can freely slide on the reference base, which allows the measurement device to smoothly move from one tuyere to another, reducing positional errors caused by manual adjustments. Compared with traditional manual operation, the utility model is more efficient and accurate.

[0012] (3) Flexible height adjustment capability: The support skeleton provides a fixed point for the cantilever assembly and allows it to slide up and down in the vertical direction. This not only increases the adaptability of the device to different height tuyeres, but also allows users to easily adjust the measurement height according to actual needs, improving the flexibility of use.

[0013] (4) Direct contact height measurement: The height measurer fixed at the end of the cantilever assembly can directly contact the tuyere surface for measurement. This method is more direct and accurate than the traditional wire pulling method or level, ensuring that the height data of each tuyere can be accurately recorded.

[0014] (5) Simplified operation process: Because the sliding base can smoothly slide along the reference surface, and the cantilever assembly can flexibly adjust the height, the entire measurement process becomes more convenient and efficient. Users do not need to frequently recalibrate the tool, greatly improving work efficiency.

[0015] In a feasible embodiment, the sliding base is an air floating base and is provided with an air inlet hole for communication with a gas supply device;

[0016] When the gas supply device is turned on, the sliding base is in a suspended state, and the sliding base is suspended relative to the reference surface; when the gas supply device is turned off, the sliding base is in a fallen state, and the bottom surface of the sliding base is in contact with the reference surface.

[0017] Beneficial effects: By introducing the air floating base design, the measurement device significantly improves the precision and efficiency of horizontal movement. Air floating technology not only reduces mechanical friction, but also provides a more stable and smooth movement experience, ensuring that each measurement is performed in a stable and accurate state.

[0018] In a feasible embodiment, the reference surface is provided with a first guide rail extending in the horizontal direction, and the sliding base is slidably connected with the first guide rail;

[0019] The support framework is provided with a second guide rail extending from the upper end to the lower end of the support framework, and the first end of the cantilever assembly is connected with the second guide rail and is slidably arranged along the height direction of the support framework.

[0020] Beneficial effects: By introducing the first guide rail and the second guide rail, the measuring device not only achieves more accurate movement and adjustment in the horizontal and vertical directions, but also significantly improves the efficiency and reliability of the overall measurement process. This design optimizes the problems of inconvenience and insufficient precision that are prone to occur in traditional methods, ensuring high-precision measurement of the wind nozzle flatness and parallelism.

[0021] In a feasible embodiment, the measuring device further comprises:

[0022] A driving member is in transmission connection with the second guide rail or the cantilever assembly, and is used to drive the cantilever assembly to ascend or descend along the height direction of the support framework.

[0023] A photoelectric sensor is installed on the second guide rail and is electrically connected with the driving member.

[0024] Beneficial effects: Through the above design, the driving member realizes the automatic adjustment of the height of the cantilever assembly, and the photoelectric sensor provides precise limit protection and stopping function, which work together to ensure the high precision, safety and reliability of the measuring device.

[0025] In a feasible embodiment, the photoelectric sensor comprises two slot-type photoelectric sensors installed at the upper and lower ends of the second guide rail, and the first end of the cantilever assembly is correspondingly provided with a light shield; when the light shield reaches the slot-type photoelectric sensor, the driving member stops running.

[0026] Beneficial effects: It ensures that the cantilever assembly can stop accurately when reaching the predetermined position, avoiding damage caused by excessive movement. Moreover, since one slot-type photoelectric sensor is installed at each of the upper and lower ends of the second guide rail in the measuring device of the present application, double protection can be provided. In this way, whether the cantilever assembly moves upward or downward, it can be detected and stopped in time, ensuring the safety and reliability of the operation.

[0027] In a feasible embodiment, the support framework comprises three support rods extending in a direction perpendicular to the reference plane, the three support rods are triangularly distributed and interconnected by connecting rods, and the second guide rail is arranged on one of the support rods facing the measured object.

[0028] And the bottom of each support rod is provided with an auxiliary footing fixed to the upper surface of the sliding base.

[0029] Beneficial effects: The utility model discloses a support framework that is significantly improved the stability and height adjusting ability of whole measuring device through the introduction of three support rods in triangular distribution, second guide rail and auxiliary footing, wherein, the support rod and connecting rod in triangular distribution form a firm frame, and the stability of the system during measurement is ensured.

[0030] In a feasible embodiment, the cantilever assembly comprises a cantilever, a clamping block and a movable rod, one end of the cantilever is connected with the second guide rail, the other end of the cantilever is slidably connected with the movable rod and is provided with the clamping block;

[0031] When the clamping block clamps the movable rod, the position of the movable rod is fixed; when the clamping block releases the movable rod, the movable rod is telescopic along the length direction of the cantilever.

[0032] Beneficial effects: The movable rod can adjust the length according to the actual measurement requirement, adapt to the distance change between different tuyeres, and ensure that the best contact point can be achieved each time of measurement. Meanwhile, the clamping block can fix the position of the movable rod when needed, so that the cantilever assembly can keep stable during measurement, and measurement error caused by the movement of the movable rod is avoided. In addition, the flexible telescopic mechanism combined with the stable fixing mechanism enables the cantilever assembly to quickly adapt to different measurement requirements, and improves the overall measurement efficiency.

[0033] In a feasible embodiment, the end of the movable rod away from the cantilever is connected with a connecting block, and the height measurer is telescopically installed on the connecting block along the height direction of the support framework.

[0034] Beneficial effects: With the support of the connecting block, the height measurer can realize more fine height adjustment, so that the measurement accuracy and reliability are improved.

[0035] In a feasible embodiment, the material of the sliding base and the reference base is marble, and the height measurer is a dial gauge.

[0036] Beneficial effects: The marble base provides a stable platform, reduces the error caused by temperature change or mechanical vibration; and the dial gauge ensures the accuracy of height measurement, and meets the requirement of accurate measurement of slight height change.

[0037] In a second aspect, the utility model also provides a tuyere measurement system of a box, which comprises:

[0038] The measuring device as claimed in the first aspect of the utility model;

[0039] The oven is installed with several tuyeres and formed with four reference placement surfaces, the four reference placement surfaces are distributed at four corners of the bottom of the oven, the oven is placed on the reference base so that the four reference placement surfaces are in close contact with the reference surface respectively; the height measurer is used to measure the height of the tuyere.

[0040] Beneficial effects: (1) By closely contacting the reference placement surfaces at the four corners of the oven bottom with the reference surface of the reference base, the position fixation and stability of the oven during measurement are ensured, thereby providing a stable foundation for height measurement and reducing measurement errors caused by unstable equipment.

[0041] (2) The reference placement surfaces at the four corners of the oven bottom ensure the levelness and flatness of the oven when placed, so that the heights of all tuyeres relative to the reference base are consistent, improving the consistency and repeatability of height measurement between different tuyeres.

[0042] (3) Since the oven can be directly placed on the reference base, and the four reference placement surfaces can be automatically aligned, the calibration process before each measurement is simplified, saving time and labor cost.

[0043] (4) The system allows the oven with several tuyeres to be installed at one time, which can support continuous measurement of the heights of multiple tuyeres, improving work efficiency.

[0044] (5) By using a high-precision height measurer (such as a dial gauge), the height of each tuyere relative to the reference base can be accurately measured, so that all tuyeres are in the same plane or meet the specific parallelism requirements, maintaining uniform airflow inside the oven. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0046] Figure 1 It is a structure schematic view of the measuring device of the embodiment of the present application;

[0047] Figure 2 It is a structure schematic view of the measuring device of the embodiment of the present application;

[0048] Figure 3 It is a structure schematic view of the tuyere measurement system of the oven of one embodiment of the present application;

[0049] Figure 4 Structure diagram of the air nozzle measurement system of the oven of another embodiment of the utility model for the second time;

[0050] Figure 5 Structure diagram of the air nozzle measurement system of the oven of another embodiment of the utility model for the first time;

[0051] Figure 6 Structure diagram of the air nozzle measurement system of the oven of another embodiment of the utility model for the second time.

[0052] Explanation of reference signs:

[0053] 1, reference base; 11, reference surface; 12, first guide rail; 2, sliding base; 21, air inlet hole; 3, support framework; 31, support rod; 32, connecting rod; 33, auxiliary foot; 4, cantilever assembly; 41, cantilever; 42, clamping block; 43, movable rod; 44, connecting block; 5, height measurer; 61, second guide rail; 62, driving part; 63, slot photoelectric sensor; 64, light shield; 7, oven; 71, air nozzle; 72, reference placement surface. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0055] In the description of the embodiments of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0056] In the description of the embodiments of the utility model, it needs to be explained that, unless there is explicit provision and limitation, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to specific circumstances.

[0057] In the embodiments of the utility model, unless there is explicit provision and limitation, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0058] The utility model discloses a kind of measuring device and a kind of measuring system of oven, it needs to be pointed out that, the measuring device provided by the utility model can be used to measure the height of measured object, further, the measuring device provided by the utility model can also measure the levelness of measured object, with the measurement system being applied to the measurement of the tuyere 71 of oven 7 as an example, the measuring device can measure the height of each tuyere 71 in oven 7, and according to the height of tuyere 71, whether each tuyere 71 is on levelness is determined, of course, the utility model can also be applied to other use scenarios, not specially limited here.

[0059] As Figures 1 to 6 As shown in the utility model first aspect embodiment of measuring device, including reference base 1, sliding base 2, support skeleton 3, cantilever assembly 4 and height measurer 5.

[0060] The upper surface of reference base 1 is horizontally arranged to form a reference surface 11, and the reference surface 11 is used to place measured object. The sliding base 2 is installed on the reference surface 11, and the sliding base 2 is slidably arranged along the horizontal direction of the reference surface 11. The support skeleton 3 is fixed on the upper surface of the sliding base 2. The first end of the cantilever assembly 4 is installed on the support skeleton 3 and is slidably arranged along the height direction of the support skeleton 3, and the second end of the cantilever assembly 4 is fixed with the height measurer 5.

[0061] According to the embodiment of the utility model, the internal structure is specifically introduced as follows: the upper surface of the reference base 1 is designed to be in a horizontal state, forming a high-precision reference surface 11. It can be understood that the reference surface 11 is used for placing the object to be measured (for example, the oven 7), providing a stable reference plane for the entire measurement process. The sliding base 2 is installed on the reference base 1 and can slide along the horizontal direction of the reference base 1. In this way, the cooperation between the sliding base 2 and the reference base 1 enables it to move freely along the linear path, ensuring consistency and accuracy during the measurement process.

[0062] The support framework 3 is fixed on the upper surface of the sliding base 2 and serves as the carrier of the cantilever assembly 4 and other related components. The support framework 3 provides mechanical support, ensuring the stability of the overall structure of the measurement device. The first end of the cantilever assembly 4 is installed on the support framework 3 and can slide along the height direction of the support framework 3. The second end of the cantilever assembly 4 is fixed with the height measurer 5, which is used to contact and measure the height of the tuyere 71. The height measurer 5 is directly used to measure the height of the measured object (for example, the tuyere 71), and is installed at the end of the cantilever assembly 4 and moves together with the cantilever assembly 4 to ensure accurate height measurement of each tuyere 71.

[0063] Based on the specific structure of the above measurement device, the specific working principle of the measurement device of the utility model is as follows: first, the upper surface of the reference base 1 forms a very flat and stable reference surface 11, which is used to place the measured object (for example, the oven 7 with several tuyeres 71), providing an absolute reference standard for all subsequent measurement operations. The above-mentioned high-precision reference surface 11 ensures the consistency and reliability of all measurement results. Second, the sliding base 2 can realize accurate movement in the horizontal direction, thereby ensuring that each tuyere 71 can be accurately accessed. Third, the support framework 3 can provide vertical support and guidance. Specifically, the support framework 3 not only provides mechanical support, but also guides the movement of the cantilever assembly 4 in the vertical direction through its structural design, so that the cantilever assembly 4 can be accurately adjusted in the height direction, ensuring that the height measurer 5 can contact tuyeres 71 of different heights. Finally, it should be pointed out that the cantilever assembly 4 and the height measurer 5 can work cooperatively, that is, the cantilever assembly 4 can adjust its position as needed to adapt to tuyeres 71 of different heights, while the height measurer 5 directly measures the height of the tuyere 71, ensuring that the height difference of each tuyere 71 relative to the reference surface 11 is accurately recorded.

[0064] Further, taking the tuyeres 71 of the measured object, the oven 7, as an example, the specific working process of the measurement device of the utility model is as follows:

[0065] Before starting the measurement, first need to be measured (such as with several wind mouth 71 oven 7) placed on the reference base 1, make oven 7 bottom four corners of the reference placement surface 72 close contact with the reference base 1 reference surface 11. Then, by hand or automatic way to adjust the position of the cantilever assembly 4, so that its first end corresponds to the first wind mouth 71 above. Start measuring, adjust the height of the cantilever assembly 4, so that the height of the measuring device 5 contact to the surface of the wind mouth 71, record the corresponding height data. For the next wind mouth 71 measurement, if there is a height difference, first lift the cantilever assembly 4 to a safe height, then by hand or automatic way to make the sliding base 2 again along the horizontal direction sliding, and move to the next wind mouth 71 position. After reaching the target position, lower the cantilever assembly 4 to the previous record height position, continue to measure and record the new height value. Repeat the above steps, until all wind mouth 71 are measured. If any data point does not meet the requirements, the individual wind mouth 71 needs to be adjusted accordingly until the specified flatness and parallelism standards are met.

[0066] In the related art, in the field of coating machines and coating machine accessories, especially in the measurement and adjustment of the horizontal degree of multiple wind mouths of air floating type coating oven, the traditional method mainly relies on the pull line method and the use of level. Although these methods can achieve basic measurement of the horizontal degree of wind mouth to some extent, they have some obvious limitations and challenges. For example, the traditional method usually needs to select a reference point or surface on the oven for measurement. However, due to the possible deformation of the oven itself or uneven force during installation, such reference selection may introduce certain errors, affecting the accuracy of the final measurement results. For example, for high wind mouths or deep recessed positions, the traditional pull line method and level are often difficult to apply, resulting in the inability to accurately obtain measurement data for these positions. This not only limits the measurement range, but also increases the operation difficulty.

[0067] When measuring objects several meters high, traditional tools such as levels need to be operated manually, and human errors are likely to occur during the adjustment and reading process. In addition, manual adjustment tools lack sufficient support for fine height adjustment, further affecting the measurement accuracy. Moreover, using the pull line method or level to measure the height of each wind mouth one by one is tedious and time-consuming. After each adjustment, the tool needs to be recalibrated, reducing the overall work efficiency.

[0068] Therefore, in order to solve the technical defects existing in the related art, the utility model provides a measuring device. By placing the measured object on the reference base 1 with the reference surface 11 and adjusting the position of the sliding base 2 and the height of the cantilever assembly 4, the precise measurement of the height of the measured object can be achieved. Further, the measuring device of the utility model has at least the following advantages compared with the related art:

[0069] (1) Stable high-precision measurement reference: By using the horizontally arranged reference base 1 as the measurement platform, it ensures that all measurement operations have an absolutely flat and stable reference surface. This feature avoids errors introduced by the oven 7 itself structural problems (such as deformation or uneven installation), providing more reliable and consistent measurement results.

[0070] (2) Efficient horizontal movement mechanism: The sliding base 2 can freely slide on the reference base 1, which allows the measurement device to smoothly move from one tuyere 71 to another tuyere 71, reducing the positional error caused by manual adjustment. Compared with the traditional manual operation, the utility model is more efficient and accurate.

[0071] (3) Flexible height adjustment capability: The support skeleton 3 provides a fixed point for the cantilever assembly 4 and allows it to slide up and down in the vertical direction. This not only increases the adaptability of the device to different height tuyeres 71, but also allows users to easily adjust the measurement height according to actual needs, improving the flexibility of use.

[0072] (4) Direct contact height measurement: The height measurer 5 fixed at the end of the cantilever assembly 4 can directly contact the surface of the tuyere 71 for measurement. This method is more direct and accurate than the traditional wire pulling method or level, ensuring that the height data of each tuyere 71 can be accurately recorded.

[0073] (5) Simplify the operation process: Because the sliding base 2 can smoothly slide along the reference surface 11, and the cantilever assembly 4 can flexibly adjust the height, the entire measurement process becomes more simple and efficient. Users do not need to frequently recalibrate the tool, thereby greatly improving work efficiency.

[0074] As shown in Figure 1 and Figure 2 According to some embodiments of the utility model, the reference surface 11 is provided with a first guide rail 12 extending in the horizontal direction, and the sliding base 2 is slidably connected with the first guide rail 12. The support skeleton 3 is provided with a second guide rail 61 extending in the height direction thereof, and the first end of the cantilever assembly 4 is connected with the second guide rail 61 and is slidably arranged in the height direction of the support skeleton 3.

[0075] In this embodiment, the first guide rail 12 is arranged on the upper surface of the reference base 1 and extends horizontally, providing a precise guide path for the sliding base 2 to ensure its linear motion on the reference surface 11. It can be understood that the first guide rail 12 ensures that the sliding base 2 moves more smoothly and accurately in the horizontal direction, reducing deviations caused by manual operation or mechanical friction. Moreover, through close cooperation with the sliding base 2, the first guide rail 12 provides additional support, enhancing the stability and reliability of the entire system. At the same time, it allows the sliding base 2 to cover a larger measurement area, suitable for different sizes and layouts of the tuyere 71 arrangement.

[0076] The second guide rail 61 is installed on the support framework 3 and extends along its height direction, and is connected with the first end of the cantilever assembly 4, allowing the cantilever assembly 4 to slide up and down along the height direction of the support framework 3. It can be understood that the second guide rail 61 allows the cantilever assembly 4 to be flexibly adjusted in height to adapt to the measurement needs of tuyeres 71 of different heights, ensuring that the best contact point can be achieved for each measurement. In addition, by precisely controlling the lifting of the cantilever assembly 4, the second guide rail 61 helps to reduce human error during height adjustment, improving the consistency and accuracy of measurement results.

[0077] In this way, by introducing the first guide rail 12 and the second guide rail 61, the measuring device not only realizes more accurate movement and adjustment in the horizontal and vertical directions, but also significantly improves the efficiency and reliability of the overall measurement process. This design optimizes the problems of inconvenience and insufficient precision that are prone to occur in traditional methods, ensuring high-precision measurement of the flatness and parallelism of the tuyere 71.

[0078] As shown in Figure 1 and Figure 2 According to some embodiments of the present application, the sliding base 2 is an air floating base and is provided with an air inlet hole 21 for communication with the air supply device.

[0079] When the air supply device is turned on, the sliding base 2 is in a suspended state, and the sliding base 2 is suspended relative to the reference surface 11; when the air supply device is turned off, the sliding base 2 is in a fallen state, and the bottom surface of the sliding base 2 is in contact with the reference surface 11.

[0080] It can be understood that the air floating base specifically includes an air inlet hole 21 and an air floating hole. The air inlet hole 21 is located on the side of the sliding base 2, and its purpose is to connect to the air supply device to receive compressed air supply. The air floating hole is distributed on the bottom of the sliding base 2, i.e. the surface in contact with the reference base 1. When the air is supplied, the air floating hole can uniformly distribute the compressed air to the bottom surface to form a thin air cushion.

[0081] Specifically, the working principle of the air floating base is as follows: when the air supply device is turned on, compressed air enters the sliding base 2 through the air inlet hole 21 and is discharged from the air floating hole, forming a layer of uniformly distributed air cushion between the sliding base 2 and the reference base 1. This layer of air cushion effectively reduces the friction between the sliding base 2 and the reference base 1, enabling the sliding base 2 to move freely in a nearly frictionless state. The air floating technology takes advantage of the buoyancy effect of gas, enabling the sliding base 2 to be in a suspended state relative to the reference base 1, thereby achieving low resistance and high precision horizontal movement.

[0082] When the air supply device is turned off, the supply of compressed air stops, and the air floating hole no longer has air flow discharged. After the sliding base 2 loses the support of the air cushion, its weight directly acts on the reference base 1, returning to a state of contact with the reference base 1. In this state, there is physical contact between the sliding base 2 and the reference base 1, ensuring the position stability of the sliding base 2 during measurement and the reliability of the measurement results.

[0083] Further, the specific working process of the measurement device based on the air floating base is as follows: place the object to be measured (such as an oven 7 with several tuyeres 71) on the reference base 1, ensuring that the reference placement surface 72 is in close contact with the reference surface 11 of the reference base 1. Turn on the air supply device to make the sliding base 2 enter a suspended state, reducing friction and facilitating subsequent translation operations. In the suspended state, push the sliding base 2 along the first guide rail 12 to move above the first tuyere 71. Turn off the air supply device to make the sliding base 2 fall back onto the reference base 1, ensuring stability during measurement. Adjust the height of the cantilever assembly 4 so that the height measuring device 5 contacts the surface of the tuyere 71 and records the corresponding height data.

[0084] If the next tuyere 71 needs to be measured, turn on the air supply device again to make the sliding base 2 suspended again. Push the sliding base 2 along the first guide rail 12 to move to the position of the next tuyere 71. After reaching the new position, turn off the air supply device and repeat the above measurement steps. After completing the measurement of all tuyeres 71, compare the height data of each tuyere 71 to determine whether the specified flatness and parallelism requirements are met. If adjustment is needed, individual tuyeres 71 can be fine-tuned with the air supply device turned off until all tuyeres 71 achieve the desired height consistency.

[0085] In this way, by introducing the air floating base design, the measurement device significantly improves the accuracy and efficiency of horizontal movement. The air floating technology not only reduces mechanical friction but also provides a more stable movement experience, ensuring that each measurement is performed in a stable and precise state.

[0086] For example, Figure 1 and Figure 2As shown, according to some embodiments of the present application, the first guide rail 12 is a dovetail-shaped slide rail structure, that is, the first guide rail 12 is composed of two parallel slide rails, and the first guide rail 12 extends along the length direction of the reference base 1 and is arranged adjacent to the edge of the reference base 1.

[0087] In the present embodiment, the first guide rail 12 is composed of two parallel slide rails, and the two slide rails together form a dovetail-shaped cross section. Such a design not only provides better guidance, but also increases the stability and carrying capacity of the system. The first guide rail 12 is parallel to the long edge of the reference base 1, so that it can adapt to a longer working stroke or measurement range. The first guide rail 12 is arranged near the edge of the reference base 1, thereby saving space and facilitating the installation and operation of other components (such as the cantilever assembly 4 or the driving member 62).

[0088] It can be understood that the dovetail-shaped slide rail is characterized by its unique trapezoidal cross-sectional shape, in which a part of the slider is embedded in the groove of the slide rail, ensuring that the sliding part can only move in a predetermined direction, while effectively preventing lateral displacement. In the present embodiment, by using a dovetail-shaped slide rail as the first guide rail 12, an accurate and stable moving platform can be provided, which is suitable for application scenarios with high requirements for position accuracy.

[0089] As shown in Figure 1 and Figure 2 , according to some embodiments of the present application, the measuring device further comprises a driving member 62 and a photoelectric sensor.

[0090] The driving member 62 is in transmission connection with the second guide rail 61 or the cantilever assembly 4, and the driving member 62 is used to drive the cantilever assembly 4 to ascend and descend along the height direction of the support framework 3. The photoelectric sensor is installed on the second guide rail 61 and is electrically connected with the driving member 62.

[0091] As shown in Figure 1 and Figure 2 , further, the photoelectric sensor comprises two slot photoelectric sensors 63, which are respectively installed at the upper and lower ends of the second guide rail 61. Correspondingly, the first end of the cantilever assembly 4 is provided with a light shield 64; in the case that the light shield 64 reaches the slot photoelectric sensor 63, the driving member 62 stops running.

[0092] In this embodiment, the driving member 62 is in transmission connection with the second guide rail 61 or the cantilever assembly 4, and the driving member 62 is usually a motor or other types of electric actuators. The specific working principle includes that the driving member 62 can accurately control the cantilever assembly 4 to ascend and descend along the height direction of the support framework 3 through the transmission connection with the second guide rail 61 or the cantilever assembly 4. The motor can be a stepper motor or a servo motor, and such motors have high-precision position control capability, which ensures that the cantilever assembly 4 can be accurately stopped at the preset position. The driving member 62 receives instructions from the control system (such as PLC or microcontroller), and adjusts the height of the cantilever assembly 4 according to the instructions. This automatic process reduces manual intervention and improves the accuracy and efficiency of measurement. Further, the driving member 62 can be equipped with a feedback device such as an encoder for real-time monitoring of the position of the cantilever assembly 4 and feeding back information to the control system to ensure that each adjustment can achieve the expected effect.

[0093] The photoelectric sensor is used to detect the position of the cantilever assembly 4 to ensure that it does not exceed the safety range. For example, a slot photoelectric sensor 63 is installed at each of the upper and lower ends of the second guide rail 61, corresponding to the highest point and the lowest point of the cantilever assembly 4, respectively. The first end of the cantilever assembly 4 is provided with a light shield 64, which enters the detection area of the slot photoelectric sensor 63 when the cantilever assembly 4 moves to the limit position.

[0094] It can be understood that the working principle of the photoelectric sensor is as follows: the slot photoelectric sensor 63 is composed of a transmitting end and a receiving end, forming an optical channel. When the light shield 64 enters this channel, it blocks the light, causing the receiving end to fail to detect the light signal. This state change triggers the photoelectric sensor to send a signal to the control system or directly to the driving member 62, notifying that the cantilever assembly 4 has reached the limit position.

[0095] When the light shield 64 reaches the slot photoelectric sensor 63, the photoelectric sensor immediately sends a stop command to the driving member 62, so that the driving member 62 stops running, ensuring that the cantilever assembly 4 can be accurately stopped when reaching the predetermined position, avoiding damage caused by excessive movement. Moreover, since in the measuring device of the utility model, a slot photoelectric sensor 63 is installed at each of the upper and lower ends of the second guide rail 61, double protection can be provided. In this way, whether the cantilever assembly 4 moves upward or downward, it can be detected and stopped in time, ensuring the safety and reliability of the operation.

[0096] Specifically, based on the above-mentioned newly added driving member 62 and photoelectric sensor, the specific working process of the measuring device of the utility model includes that after the system is started, the driving member 62 adjusts the cantilever assembly 4 to the initial height position according to the preset program or manual instructions. The driving member 62 adjusts the height of the cantilever assembly 4 as needed, so that it can contact the surface of the tuyere 71 at different heights.

[0097] When the cantilever assembly 4 approaches the limit position, the light shield 64 enters the corresponding slot-shaped photoelectric sensor 63. After the photoelectric sensor detects the light shield 64, it sends a signal to the drive member 62 to stop the drive member 62 from running, ensuring that the cantilever assembly 4 does not exceed the safe range. Each time the height is adjusted, the photoelectric sensor provides real-time position feedback, ensuring that the cantilever assembly 4 is accurately stopped at the desired position, avoiding excessive movement. After completing the measurement of all the nozzles 71, the system can analyze the recorded data to determine whether it meets the specified flatness and parallelism requirements.

[0098] In summary, through the above design, the drive member 62 realizes the automatic adjustment of the height of the cantilever assembly 4, and the photoelectric sensor provides accurate limit protection and stopping function, which together ensures the high precision, safety and reliability of the measuring device.

[0099] For example Figure 2 As shown, the second guide rail 61 can be a screw rod structure, the first end of the cantilever assembly 4 is provided with a nut structure and is sleeved on the second guide rail 61, the drive member 62 is a motor and is fixed at the top or bottom of the support framework 3, and is connected with one end of the screw rod. The drive member 62 drives the screw rod to rotate, thereby driving the cantilever assembly 4 to realize lifting. In this way, the screw rod structure provides high-precision linear motion, combined with the high-precision control of the motor, to ensure that the cantilever assembly 4 can be accurately stopped at the preset position.

[0100] As Figure 2 shown, according to some embodiments of the present application, the support framework 3 includes three support rods 31 extending in a direction perpendicular to the reference surface 11, the three support rods 31 are triangularly distributed and interconnected by a connecting rod 32, and one of the support rods 31 facing the measured object is provided with a second guide rail 61. The bottom of each support rod 31 is provided with an auxiliary foot 33, and the auxiliary foot 33 is fixed to the upper surface of the sliding base 2.

[0101] In this embodiment, the support framework 3 includes three support rods 31 extending in a direction perpendicular to the reference surface 11. It can be understood that the three support rods 31 are triangularly distributed and interconnected by the connecting rod 32, forming a very stable geometric structure. The triangle is one of the most stable shapes in nature, which can effectively disperse external force and prevent deformation. This design enhances the overall rigidity of the support framework 3, reduces the shaking or displacement caused by external factors (such as vibration generated during operation), and thus improves the stability and reliability during the measurement process.

[0102] The second guide rail 61 is installed on a support rod 31 facing the measured object, providing a precise movement path for the cantilever assembly 4 in the height direction, so that the cantilever assembly 4 can be flexibly adjusted in height to adapt to the measurement requirements of the tuyere 71 at different heights. The second guide rail 61 is used in combination with the driving member 62 to realize the automatic lifting of the cantilever assembly 4, reduce the errors caused by manual operation, and improve the accuracy and consistency of height adjustment.

[0103] The auxiliary foot 33 at the bottom of each support rod 31 is fixed to the upper surface of the sliding base 2, ensuring that the support skeleton 3 remains stable during the entire measurement process. The presence of the auxiliary foot 33 not only increases the contact area, but also shares part of the weight, further enhancing the stability of the system. Moreover, the design of the auxiliary foot 33 ensures that the three support points of the support skeleton 3 are uniformly stressed, avoiding tilting or deviation caused by uneven stress on a single point, and ensuring the accuracy of the measurement results.

[0104] In this way, the utility model introduces three triangularly distributed support rods 31, a second guide rail 61 and an auxiliary foot 33, which significantly improves the stability and height adjustment capability of the entire measuring device. Among them, the triangularly distributed support rods 31 and connecting rods 32 form a solid frame, ensuring the stability of the system during measurement. The second guide rail 61 provides a precise height adjustment path for the cantilever assembly 4, and in combination with the driving member 62, realizes automatic height adjustment and improves measurement accuracy. At the same time, the auxiliary foot 33 ensures the stability of the support skeleton 3 during the entire measurement process, avoiding shaking or displacement caused by external forces or improper operation.

[0105] As shown in Figure 2 According to some embodiments of the utility model, the cantilever assembly 4 includes a cantilever 41, a clamping block 42 and a movable rod 43. One end of the cantilever 41 is connected to the second guide rail 61, and the other end of the cantilever 41 is slidably connected to the movable rod 43 and is provided with the clamping block 42.

[0106] When the clamping block 42 clamps the movable rod 43, the position of the movable rod 43 is fixed; when the clamping block 42 releases the movable rod 43, the movable rod 43 can be extended and retracted along the length direction of the cantilever 41.

[0107] In this embodiment, one end of the cantilever 41 is connected to the second guide rail 61 and can slide in the height direction of the support skeleton 3. The cantilever 41 serves as the main support structure of the cantilever assembly 4, responsible for carrying other components (such as the movable rod 43 and the height measuring device 5) and realizing height adjustment.

[0108] The clamping block 42 is installed at the other end of the cantilever 41 and is used to fix or loosen the movable rod 43. By tightening or loosening the screw, the clamping block 42 can fix the position of the movable rod 43 when needed, or allow the movable rod 43 to adjust in length along the length of the cantilever 41.

[0109] The movable rod 43 is slidably connected to the other end of the cantilever 41 and is fixed or released by the clamping block 42. The movable rod 43 can adjust the length according to the actual measurement needs to adapt to the distance change between different tuyeres 71, ensuring that each measurement can reach the best contact point.

[0110] The fixed and telescopic mechanism of the cantilever assembly 4 is specifically introduced as follows: in the fixed state, the clamping block 42 is clamped, specifically, when the clamping block 42 clamps the movable rod 43, the position of the movable rod 43 is fixed and cannot move along the length of the cantilever 41. In this state, the overall structure of the cantilever assembly 4 remains stable, ensuring that the height measuring device 5 can accurately contact the surface of the tuyere 71 and record data.

[0111] In the telescopic state, the clamping block 42 is loosened, specifically, when the clamping block 42 loosens the movable rod 43, the movable rod 43 can freely extend and retract in the length direction of the cantilever 41. This allows users to flexibly adjust the length of the cantilever assembly 4 according to the distance between different tuyeres 71, ensuring that each measurement can reach the best contact point, improving measurement accuracy and applicability.

[0112] In the specific application process, before starting the measurement, the user first loosens the clamping block 42, adjusts the length of the movable rod 43 to adapt to the measurement needs of the first tuyere 71. After adjustment, tighten the clamping block 42 to fix the position of the movable rod 43, ensuring that the cantilever assembly 4 remains stable during measurement. When measuring the next tuyere 71 is needed, if the tuyere 71 position changes, the user can loosen the clamping block 42 again to adjust the length of the movable rod 43 to adapt to the new measurement needs. After adjustment, tighten the clamping block 42 again to fix the position of the movable rod 43 and continue the measurement. It can be understood that the telescopic design of the movable rod 43 allows the cantilever assembly 4 to flexibly cope with tuyeres 71 of different positions and heights, ensuring that each measurement can reach the best contact point, improving the accuracy and efficiency of the measurement.

[0113] In this way, the movable rod 43 can adjust the length according to the actual measurement needs to adapt to the distance change between different tuyeres 71, ensuring that each measurement can reach the best contact point. At the same time, the clamping block 42 can fix the position of the movable rod 43 when needed, ensuring that the cantilever assembly 4 remains stable during measurement, avoiding measurement errors caused by the movement of the movable rod 43. In addition, the flexible telescopic mechanism combined with the stable fixed mechanism allows the cantilever assembly 4 to quickly adapt to different measurement needs, improving the overall measurement efficiency.

[0114] As Figure 2 shown, further, the end of the movable rod 43 away from the cantilever 41 is connected with a connecting block 44, and the height measurer 5 is installed on the connecting block 44 in a height direction of the support framework 3 and can be lifted.

[0115] It should be noted that the installation interface or guide rail on the connecting block 44 allows the height measurer 5 to be fine-tuned in the height direction of the support framework 3. This design allows the user to further adjust the position of the height measurer 5 after fixing the length of the movable rod 43, ensuring that it can accurately contact the surface of each tuyere 71. Therefore, with the support of the connecting block 44, the height measurer 5 can achieve more precise height adjustment, thereby improving the accuracy and reliability of the measurement.

[0116] On the other hand, the presence of the connecting block 44 enhances the overall structural stability of the cantilever assembly 4. It not only connects the movable rod 43 and the height measurer 5, but also ensures close cooperation between the components through its design, reducing the problem of shaking or displacement caused by external vibration or improper operation.

[0117] For example, the connecting block 44 is L-shaped, with one end connected to the movable rod 43, usually fixed by bolts or buckles, and the other end connected to the height measurer 5 (dial gauge), providing an installation interface. Among them, the side of the connecting block 44 away from the movable rod 43 is provided with an installation interface, which can be a guide rail or a sliding groove, the purpose of which is to allow the height measurer 5 to be fine-tuned in the height direction of the support framework 3. In this way, the design of the guide rail or sliding groove ensures that the height measurer 5 can move smoothly up and down, and can be locked in a specific position when needed.

[0118] The locking device is located on the side or bottom of the installation interface, and its purpose is to lock the position of the height measurer 5 to prevent it from moving accidentally during measurement. The locking device can be a knob or a screw, which can firmly fix the position of the height measurer 5 after being tightened.

[0119] According to some embodiments of the present application, the material of the sliding base 2 and the reference base 1 is marble.

[0120] It can be understood that, on the one hand, marble has a very low thermal expansion coefficient, that is, the size of marble hardly changes with temperature changes, which is very suitable for applications that require high-precision positioning and measurement. On the other hand, the marble surface is hard and wear-resistant, and can withstand long-term use without being easily damaged or worn, ensuring the long-term stability and accuracy of the equipment. In addition, marble has good shock absorption performance, which can absorb external vibrations and reduce the impact on precise measurement, improving the accuracy of the measurement results.

[0121] According to some embodiments of the present application, the height measurer 5 is a dial gauge.

[0122] It needs to be explained that the dial gauge is a precision measuring tool, usually used to measure small length or thickness changes, with an accuracy of 0.01 mm or even higher. In the utility model, the dial gauge is used as a height measurer 5 to accurately measure the height change of the cantilever assembly 4 relative to the reference base 1.

[0123] It can be understood that the dial gauge can provide very high measurement accuracy, and is usually equipped with a clear dial or digital display, which is convenient for the operator to quickly and accurately read the measurement value. At the same time, the dial gauge has stable structure and can maintain consistent measurement accuracy in different environments, and is not affected by external environmental factors such as temperature, humidity, etc.

[0124] In summary, the marble base provides a stable platform to reduce errors caused by temperature changes or mechanical vibrations; and the dial gauge ensures the accuracy of height measurement, meeting the demand for accurate measurement of subtle height changes.

[0125] As shown in Figures 3 to 6 the air nozzle 71 measurement system of the oven 7 according to the second aspect of the utility model, comprising the measuring device as described in the first aspect of the utility model, further comprising an oven 7.

[0126] Among them, the oven 7 is installed with several air nozzles 71 and forms four reference placement surfaces 72, the four reference placement surfaces 72 are distributed at the four corners of the bottom of the oven 7, and the oven 7 is placed on the reference base 1, so that the four reference placement surfaces 72 are in close contact with the reference surface 11 respectively; the height measurer 5 is used to measure the height of the air nozzle 71.

[0127] The air nozzle 71 measurement system of the oven 7 according to the embodiment of the utility model has at least the following advantages:

[0128] (1) By closely contacting the reference placement surface 72 at the four corners of the bottom of the oven 7 with the reference surface 11 of the reference base 1, the position fixation and stability of the oven 7 during the measurement process are ensured, thereby providing a stable basis for height measurement and reducing the measurement error caused by unstable equipment.

[0129] (2) The reference placement surface 72 at the four corners of the bottom of the oven 7 ensures the levelness and flatness of the oven 7 when placed, so that the heights of all air nozzles 71 relative to the reference base 1 are consistent, improving the consistency and repeatability of height measurement between different air nozzles 71.

[0130] (3) Since the oven 7 can be directly placed on the reference base 1, and the four reference placement surfaces 72 can be automatically aligned, the calibration process before each measurement is simplified, saving time and labor cost.

[0131] (4) The system allows the installation of an oven 7 with several tuyeres 71 at one time, and can support continuous measurement of the height of multiple tuyeres 71, improving work efficiency.

[0132] (5) By using a high-precision height measuring device 5 (such as a dial gauge), the height of each tuyere 71 relative to the reference base 1 can be accurately measured, ensuring that all tuyeres 71 are in the same plane or meet specific parallelism requirements, maintaining uniform airflow inside the oven 7.

[0133] (6) The use of marble material not only provides high stability and wear resistance, but also enhances the reliability and durability of the entire system, ensuring consistent measurement accuracy over a long period of time.

[0134] The specific working process of the above tuyere 71 measurement system is described in detail as follows:

[0135] As shown in Figures 3 to 6 , during the measurement process, the required height of the measuring device is adjusted in advance. First, place the section of oven 7 (the tuyeres 71 have been preliminarily adjusted and installed on the oven 7) to be measured on the reference base 1, so that the reference placement surface 72 at the four corners of the oven 7 is in close contact with the marble reference base 1, at which time the entire oven 7 device is kept level based on the reference base 1 (as shown in Figure 3 、 4 ). Connect the air pipe to the air inlet on the side of the sliding base 2, allowing the sliding base 2 to slide along the first guide rail 12 (such as a dovetail slide rail) to the position of the first tuyere 71, then turn off the air supply device, allowing the sliding base 2 to contact the marble base. By adjusting the second guide rail 61 (such as a screw structure) to the appropriate position, the height measuring device 5 (such as a dial gauge) contacts the upper surface of the tuyere 71 and records the corresponding data, while recording the position information of the second guide rail 61.

[0136] When measuring the second tuyere 71, if there is a height difference, first lift the second guide rail 61, then start the air source, allowing the sliding base 2 to float and move to the position of the second tuyere 71, then lower the second guide rail 61 to the position recorded during the first measurement to measure the height value of the second tuyere 71; if there is no height difference, the second guide rail 61 does not need to be lifted, and the air supply device is directly started. After moving the sliding base 2 to the predetermined position, turn off the air supply device to measure the height data of the second tuyere 71. In this way, the measurement of all tuyeres 71 is completed.

[0137] If the measured data does not meet the requirements, the height adjusting screw of the tuyere 71 is adjusted until the appropriate height is reached, and all measurements are completed. To meet other measurement requirements, the height measuring device 5 can also be replaced with a measuring component such as an ultrasonic displacement sensor. During measurement, the gas source is started to make the measuring device float or directly push the sliding base 2 to move along the first guide rail 12, and the first tuyere 71 is continuously pushed to the last tuyere 71, and the relevant measurement data is derived, and the overall levelness and parallelism based on the reference base 1 and the four-corner reference placement surface 72 of the oven 7 are checked.

[0138] During the measurement process, if data that does not meet the requirements is detected, the height of the single tuyere 71 is adjusted. After all tuyeres 71 are adjusted, the measurement is performed again to further ensure the levelness and parallelism.

[0139] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A measuring device, characterized in that The utility model provides a height measuring device, including: A reference base (1) is provided with an upper surface horizontally arranged to form a reference surface (11) for placing a measured object; A sliding base (2) is mounted on the reference surface (11) and is slidably arranged along the horizontal direction of the reference surface (11); A support framework (3) is fixed on the upper surface of the sliding base (2); A cantilever assembly (4) and a height measuring device (5), the first end of the cantilever assembly (4) is mounted on the support framework (3) and is slidably arranged along the height direction of the support framework (3), and the second end of the cantilever assembly (4) is fixed with the height measuring device (5).

2. The measuring device of claim 1, wherein, The reference surface (11) is provided with a first guide rail (12) extending in the horizontal direction, and the sliding base (2) is slidably connected with the first guide rail (12); The support framework (3) is provided with a second guide rail (61) extending from the upper end to the lower end of the support framework (3), and the first end of the cantilever assembly (4) is connected with the second guide rail (61) and is slidably arranged along the height direction of the support framework (3).

3. The measuring device of claim 2, wherein, The sliding base (2) is an air floating base and is provided with an air inlet hole (21) for communicating with a gas supply device; When the gas supply device is turned on, the sliding base (2) is in a floating state, and the sliding base (2) is arranged in a floating manner relative to the reference surface (11); when the gas supply device is turned off, the sliding base (2) is in a falling state, and the bottom surface of the sliding base (2) is arranged in contact with the reference surface (11).

4. The measuring device of claim 2, wherein, Further comprising: A driving member (62) is in transmission connection with the second guide rail (61) or the cantilever assembly (4), and the driving member (62) is used to drive the cantilever assembly (4) to ascend and descend along the height direction of the support framework (3); A photoelectric sensor is mounted on the second guide rail (61) and is electrically connected with the driving member (62).

5. The measuring device of claim 4, wherein, The photoelectric sensor includes two slot-type photoelectric sensors (63) mounted on the upper and lower ends of the second guide rail (61), and correspondingly, the first end of the cantilever assembly (4) is mounted with a light shield (64); when the light shield (64) reaches the slot-type photoelectric sensor (63), the driving member (62) stops running.

6. The measuring device of claim 2, wherein, The support framework (3) includes three support rods (31) extending in a direction perpendicular to the reference surface (11), the three support rods (31) are distributed in a triangular manner and are interconnected by a connecting rod (32), and one of the support rods (31) facing the measured object is provided with the second guide rail (61); And the bottom of each support rod (31) is provided with an auxiliary foot (33) fixed to the upper surface of the sliding base (2).

7. The measuring device of claim 2, wherein, The cantilever assembly (4) comprises a cantilever (41), a clamping block (42) and a movable rod (43), one end of the cantilever (41) is connected with the second guide rail (61), the other end of the cantilever (41) is slidably connected with the movable rod (43) and is provided with the clamping block (42); The position of the movable rod (43) is fixed when the clamping block (42) clamps the movable rod (43), and the movable rod (43) is telescopic along the length direction of the cantilever (41) when the clamping block (42) loosens the movable rod (43).

8. The measuring device of claim 7, wherein, The end of the movable rod (43) away from the cantilever (41) is connected with a connecting block (44), and the height gauge (5) is installed on the connecting block (44) in a lifting manner along the height direction of the support framework (3).

9. The measuring device according to any one of claims 1 to 8, characterized in that, The material of the sliding base (2) and the reference base (1) is marble, and the height gauge (5) is a micrometer.

10. A blow nozzle measurement system for an oven, characterized by, Comprise: The measuring device of any one of claims 1 to 9; An oven (7) is installed with several tuyeres (71) and is formed with four reference placement surfaces (72), the four reference placement surfaces (72) are distributed at four corners of the bottom of the oven (7), the oven (7) is placed on the reference base (1) so that the four reference placement surfaces (72) are in close contact with the reference surface (11) respectively; the height gauge (5) is used for measuring the height of the tuyere (71).

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