Flue impact testing machine

Abstract

The utility model discloses a flue impact testing machine, and belongs to the technical field of flue impact tests. The flue impact testing machine comprises a support; the driving unit is connected with the bracket; the moving unit is in driving connection with the driving unit and connected with the support, the moving unit moves along the support, and the moving unit comprises an electromagnet; the heavy object is columnar and is connected with the electromagnet in a magnetic attraction manner; the bearing frame is used for placing a flue sample; and the control terminal is in communication connection with the electromagnet and the driving unit. The technical problem that an existing flue impact testing machine is low in efficiency is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue impact tests, and particularly relates to a flue impact testing machine. Background Art

[0002] The purpose of construction testing projects is mainly to ensure the quality, safety, durability and applicability of construction projects, and at the same time provide data support for improving and enhancing project quality. This includes the impact test of the flue. The main purpose of the flue impact test is to evaluate the tolerance, stability and safety of the flue system (including flue structure, connectors, supports, etc.) when subjected to internal or external pressure impacts. Through the test, the structural strength of the flue can be verified, its safety can be evaluated, and whether the current product has potential defects can be found.

[0003] The flue impact test usually needs to be repeated many times. After the heavy object of the current testing machine drops once, manual intervention is required to hang and lift the heavy object again, resulting in the technical problem of low efficiency of the current flue impact testing machine. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a flue impact testing machine, aiming to improve the test efficiency of flue impact.

[0005] To achieve the above purpose, the flue impact testing machine proposed by the utility model includes:

[0006] A bracket;

[0007] A driving unit, the driving unit is connected to the bracket;

[0008] A moving unit, the moving unit is drivingly connected to the driving unit and connected to the bracket, the moving unit moves along the bracket, and the moving unit includes an electromagnet;

[0009] A heavy object, the heavy object is columnar and is magnetically attracted to the electromagnet;

[0010] A bearing frame, the bearing frame is used to place the flue specimen;

[0011] A control terminal, the control terminal is communicatively connected to the electromagnet and the driving unit.

[0012] Optionally, in an embodiment of the utility model, the heavy object includes a magnetic attraction member, the magnetic attraction member is located at the end face of the heavy object, one of the magnetic attraction member and the electromagnet has a spherical convex surface, and the other has a spherical concave surface, and the spherical convex surface is magnetically attracted and matched with the spherical concave surface.

[0013] Optionally, in an embodiment of the utility model, the moving unit includes:

[0014] A moving component, which is connected to the bracket and can move along the bracket;

[0015] A connecting rod, one end of which is connected to the moving component;

[0016] An electromagnet, which includes a magnetic attraction block and a magnetic block connecting rod. The magnetic block connecting rod penetrates through the connecting rod and can slide relative to the connecting rod, and the magnetic block connecting rod is connected to the magnetic attraction block;

[0017] A measuring component, which is communicatively connected to the control terminal. The measuring component includes at least two sensors, and the two sensors measure the position of the magnetic block connecting rod.

[0018] Optionally, in an embodiment of the present invention, the driving unit and the moving unit are driven by a chain. The driving unit includes a motor and a sprocket. The motor is drivingly connected to the sprocket, and the chain meshes with the sprocket.

[0019] Optionally, in an embodiment of the present invention, the chain is an open chain. One end of the chain is connected to the moving unit, and the chain bypasses the sprocket and hangs vertically.

[0020] Optionally, in an embodiment of the present invention, the bracket is a hollow structure, and a part of the chain hangs vertically in the cavity of the bracket.

[0021] Optionally, in an embodiment of the present invention, the measuring component includes three sensors. Two of the sensors measure the position of the magnetic block connecting rod, and the other sensor measures the distance between the moving unit and the ground.

[0022] Optionally, in an embodiment of the present invention, the moving component includes:

[0023] Guide wheels, the number of which is 2n, where n is an integer greater than 1. The guide wheels are symmetrically arranged on both sides of the bracket;

[0024] A housing, which covers the guide wheels and is connected to the guide wheels, and the connecting rod is connected to the housing.

[0025] Optionally, in an embodiment of the present invention, the number of the guide wheels is 4.

[0026] Optionally, in an embodiment of the present invention, the bracket is detachably connected to the carrier.

[0027] Compared with the prior art, the utility model can at least achieve the following beneficial effects. The heavy object serves as an impact source and is connected to the electromagnet. The bracket serves as the guide rail of the moving unit, ensuring that the moving unit can climb to a predetermined height during the test, that is, the electromagnet can lift the heavy object to the predetermined height. The control terminal controls the driving unit to drive the heavy object to lift in a vertical posture. At the predetermined height, the electromagnet is controlled to turn off, and the heavy object freely falls onto the flue sample to complete an impact. Subsequently, the moving unit is controlled to descend, and the electromagnet magnetically connects to the heavy object again at the lower part of the bracket, and then drives the heavy object to climb and repeat the falling impact. In the prior art, after the heavy object falls, its landing form is relatively random, resulting in the need for manual intervention to magnetically connect the heavy object to the electromagnet again. In this solution, the heavy object is a columnar heavy object, and the columnar heavy object remains in a vertical posture after falling, and the electromagnet can automatically magnetically connect to the heavy object again after falling, reducing the frequency of manual intervention, improving the efficiency of the impact test, shortening the test time, and solving the technical problem of the low efficiency of the current flue impact testing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0029] Figure 1 Structural schematic diagram of the flue impact testing machine of the present utility model;

[0030] Figure 2 is Figure 1 Partial enlarged view of position A in

[0031] Figure 3 Schematic diagram of the flue impact testing machine of the present utility model with some structures hidden;

[0032] Figure 4 is Figure 3 Partial enlarged view of position B in

[0033] Figure 5 Structural schematic diagram of the spherical convex surface and the spherical concave surface;

[0034] Figure 6 Structural schematic diagram of the connecting part in the flue impact testing machine of the present utility model.

[0035] Explanation of the reference numerals in the drawings:

[0036] 100. Bracket; 200. Driving unit; 210. Motor; 220. Sprocket; 300. Moving unit; 310. Moving component; 320. Connecting rod; 330. Electromagnet; 331. Magnetic attracting block; 332. Magnetic block connecting rod; 340. Sensor; 400. Heavy object; 410. Magnetic attracting member; 500. Flue gas specimen; 600. Carrying rack; 710. Spherical convex surface; 720. Spherical concave surface; 800. Chain; 900. Connecting part;

[0037] The realization of the purpose, functional features and advantages of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0040] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0041] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0042] Referring to Figures 1 to 6 , the present utility model provides a flue impact testing machine, comprising:

[0043] a bracket 100;

[0044] a driving unit 200, the driving unit 200 is connected to the bracket 100;

[0045] a moving unit 300, the moving unit 300 is drivingly connected to the driving unit 200 and connected to the bracket 100, the moving unit 300 moves along the bracket 100, and the moving unit 300 includes an electromagnet 330;

[0046] a heavy object 400, the heavy object 400 is columnar and is magnetically connected to the electromagnet 330;

[0047] a carrier 600, the carrier 600 is used for placing a flue specimen 500;

[0048] a control terminal (not shown in the figure), the control terminal is communicatively connected to the electromagnet 330 and the driving unit 200.

[0049] The heavy object 400 serves as an impact source and is connected to the electromagnet 330. The bracket 100 acts as the guide rail of the motion unit 300, ensuring that the motion unit 300 can climb to a predetermined height during the test, that is, the electromagnet 330 can lift the heavy object 400 to a predetermined height. The control terminal controls the drive unit 200 to drive the heavy object 400 to lift in a vertical posture. At the predetermined height, the electromagnet 330 is controlled to turn off, and the heavy object 400 freely falls onto the flue specimen 500 to complete one impact. Subsequently, the motion unit 300 is controlled to descend, and the electromagnet 330 is magnetically connected to the heavy object 400 again at the lower part of the bracket 100, and then drives the heavy object 400 to climb and repeat the falling impact. After the heavy object 400 in the prior art falls, its landing form is relatively random, resulting in the need for manual intervention to magnetically connect the heavy object 400 to the electromagnet 330 again. In this solution, the heavy object 400 is a columnar heavy object 400. After the columnar heavy object 400 falls, it remains in a vertical posture, and the electromagnet 330 can automatically magnetically connect to the heavy object 400 again after falling, reducing the frequency of manual intervention, improving the efficiency of this impact test, shortening the test time, and solving the technical problem of the low efficiency of the current flue impact testing machine.

[0050] It can be understood that the control terminal can be a device for realizing communication connection and signal reception and transmission, such as a remote control, a mobile phone installed with corresponding control software, etc., which is not limited here.

[0051] Furthermore, the heavy object 400 includes a magnetic attraction member 410. The magnetic attraction member 410 is located at the end face of the heavy object 400. One of the magnetic attraction member 410 and the electromagnet 330 has a spherical convex surface 710, and the other has a spherical concave surface 720. The spherical convex surface 710 and the spherical concave surface 720 are magnetically matched.

[0052] When the electromagnet 330 falls to contact the end face of the heavy object 400, the electromagnet 330 forms a magnetic connection with the magnetic attraction member 410. After the connection surface of the electromagnet 330 and the magnetic attraction member 410 is designed as a spherical convex surface 710 and a spherical concave surface 720, they can achieve automatic alignment during magnetic attraction, that is, they can perform precise magnetic connection, ensuring that the falling trajectory of the heavy object 400 during subsequent impacts is approximate to that during the first impact, and improving the accuracy of the test.

[0053] Specifically, the motion unit 300 includes a moving component 310, a connecting rod 320, an electromagnet 330 and a measuring component.

[0054] Among them, the moving component 310 is a guide wheel symmetrically arranged on both sides of the bracket 100. Of course, the moving component can also be designed as a slider structure, and preferably a guide wheel is used. Compared with the slider structure, the guide wheel has better environmental adaptability and lower requirements for the working environment. The slider needs to ensure that it is clean between it and the bracket 100 and the surface of the bracket 100 is smooth. In addition, since the heavy object 400 will cause the slider to tilt, resulting in a large friction between the slider and the bracket 100, thereby affecting the movement ability of the movement unit 300. The guide wheel structure can overcome the above problems.

[0055] The number of guide wheels is 2n, with n guide wheels on each side of the bracket 100, and n is an integer greater than 1. That is, the number of guide wheels can be selected as 4, 6, 8, etc., and preferably 4. It can be understood that the more the number of guide wheels, the stronger the movement stability of the movement unit 300 and the higher the movement accuracy. However, the overall mass of the movement unit 300 will also be greater. Therefore, considering comprehensively, it is preferably to use 4 guide wheels, which can not only ensure the movement stability of the movement unit 300 but also not cause the overall mass to be too large.

[0056] The electromagnet 330 structure includes a magnetic attraction block 331 and a magnetic block connecting rod 332. Among them, the magnetic block connecting rod 332 penetrates through the connecting rod 320 and can slide relative to the connecting rod 320 along the direction of the magnetic block connecting rod 332. There are two sensors 340 in the measuring component to measure the position of the magnetic block connecting rod 332. During the process of the electromagnet 330 descending to connect with the heavy object 400, within a short period of time after the electromagnet 330 is connected to the heavy object 400, the electromagnet 330 will continue to descend a certain distance. Since the position of the electromagnet 330 will not change after it is connected to the heavy object 400, this section of movement is converted into the downward movement of the connecting rod 320 relative to the magnetic block connecting rod 332. The magnetic block connecting rod 332 above the connecting rod 320 gradually protrudes until it is detected by a sensor 340. At this time, it is determined that the electromagnet 330 is connected to the heavy object 400, and the movement direction of the moving component 310 changes and starts to climb upward. At the initial stage of climbing, the electromagnet 330 does not move, but the connecting rod 320 rises relative to the magnetic block connecting rod 332, that is, the magnetic block connecting rod 332 above the connecting rod 320 gradually retracts until it cannot be detected by another sensor 340. The subsequent climbing action will drive the heavy object 400 to rise. At this time, another sensor 340 sends a signal to the control terminal. This moment is the zero point of climbing, and the climbing distance is measured from this point to reduce the error between the actual lifting distance of the heavy object 400 and the measured distance.

[0057] Furthermore, the driving unit 200 and the movement unit 300 are driven by a chain 800. The driving unit 200 includes a motor 210 and a sprocket 220. The motor 210 is drivingly connected to the sprocket 220, and the chain 800 is engaged with the sprocket 220.

[0058] Specifically, the chain 800 has an open structure, that is, the chain 800 does not form a closed loop. A closed-loop chain 800 structure requires at least two sprockets 220 to change the movement direction of the chain 800 during transmission. To simplify the structure, an open-structure chain 800 is used in this solution, and only one sprocket 220 is needed. One end of the chain 800 is connected to the moving unit 300 to facilitate lifting and controlling the falling speed of the moving unit 300. The part of the chain 800 that bypasses the sprocket 220 and is not connected to the moving unit 300 hangs vertically naturally. To protect the chain 800, the bracket 100 has a hollow structure, and the vertically hanging part of the chain 800 is placed in the cavity of the bracket 100.

[0059] When using an open-structure chain 800 for transmission, it is necessary to add a sensor 340 to measure the ground clearance of the moving unit 300. When the moving unit 300 descends, if the moving unit 300 descends to a lower position, it may cause the chain 800 to disengage from the sprocket 220. Therefore, by measuring the descending position of the moving unit 300, it is possible to prevent the moving unit 300 from moving to an overly low position. Similarly, this sensor 340 can also prevent the moving unit 300 from moving to an overly high position.

[0060] Specifically, the two sensors 340 for measuring the magnetic block link 332 are installed on the connecting rod 320, and the sensor 340 for measuring the ground clearance of the moving unit 300 is installed on the housing.

[0061] The carrier 600 has a structure that complies with national standards and will not be elaborated here. The carrier 600 and the bracket 100 are detachably connected at the connecting part 900. After the two are connected, the carrier 600 can increase the grounding area of the bracket 100, enabling the bracket 100 to stand stably on the ground. After the test is completed, the two can be detached to facilitate the transportation of the testing machine. Specifically, a threaded connection is used between the two to achieve detachable connection.

[0062] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A flue impact testing machine, characterized in that, Comprising: A bracket; A driving unit, which is connected to the bracket; A moving unit, which is drivingly connected to the driving unit and connected to the bracket, the moving unit moves along the bracket, and the moving unit includes an electromagnet; A heavy object, which is columnar and magnetically attracted to the electromagnet; A carrier for placing a flue gas sample; A control terminal, which is communicatively connected to the electromagnet and the driving unit.

2. The flue gas impact testing machine according to claim 1, wherein The heavy object includes a magnetic attracting member, the magnetic attracting member is located at the end face of the heavy object, one of the magnetic attracting member and the electromagnet has a spherical convex surface, and the other has a spherical concave surface, and the spherical convex surface is magnetically attracted to the spherical concave surface.

3. The flue gas impact testing machine according to claim 1, wherein, The moving unit includes: A moving component, which is connected to the bracket and can move along the bracket; A connecting rod, one end of which is connected to the moving component; An electromagnet, which includes a magnetic attracting block and a magnetic block connecting rod, the magnetic block connecting rod penetrates through the connecting rod and can slide relative to the connecting rod, and the magnetic block connecting rod is connected to the magnetic attracting block; A measuring component, which is communicatively connected to the control terminal, and the measuring component includes at least two sensors, and the two sensors measure the position of the magnetic block connecting rod.

4. The flue duct impact testing machine according to claim 3, wherein, The driving unit and the moving unit are driven by a chain. The driving unit includes a motor and a sprocket, the motor is drivingly connected to the sprocket, and the chain is engaged with the sprocket.

5. The flue gas impact testing machine according to claim 4, characterized in that, The chain is an open chain, one end of the chain is connected to the moving unit, and the chain bypasses the sprocket and hangs vertically.

6. The flue gas impact testing machine according to claim 5, wherein, The bracket is a hollow structure, and part of the chain hangs vertically in the cavity of the bracket.

7. The flue gas impact testing machine according to claim 5, wherein, The measuring component includes three sensors, two of the sensors measure the position of the magnetic block connecting rod, and the other sensor measures the distance of the moving unit from the ground.

8. The flue gas impact testing machine according to claim 3, wherein, The moving component includes: Guide wheels, the number of the guide wheels is 2n, n is an integer greater than 1, and the guide wheels are symmetrically arranged on both sides of the bracket; A housing, which covers the guide wheels and is connected to the guide wheels, and the connecting rod is connected to the housing.

9. The flue gas impact testing machine according to claim 8, characterized in that, The number of the guide wheels is 4.

10. The flue duct impact testing machine according to claim 1, characterized in that, The bracket is detachably connected to the carrier.

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