A counting device

Abstract

The application discloses a counting device, and relates to the technical field of heat exchanger manufacturing. The device comprises a platform, a counting component arranged on the platform, and a counter arranged on the platform and connected with the counting component, wherein the counter is configured to receive counting information of the counting component and display the information. The application automatically moves the sliding table and the conductive part by driving the lead screw with the motor, triggers the mechanism of the electric signal formed by the closed loop of the contact between the conductive part and the fin, and accurately records the contact times by cooperating with the electronic counter, so that the continuous scanning and counting of the fin are realized, the problems of fatigue and error in the traditional manual visual counting are solved, the counting efficiency is greatly improved, and the device is especially suitable for large-batch production scenes.

Description

Technical Field

[0001] This application relates to the field of heat exchanger manufacturing technology, and in particular to a counting device. Background Technology

[0002] Large plate-fin heat exchangers in air separation compressor units are highly efficient heat exchange devices. Plate-fin heat exchangers typically consist of plate cores, with the tube bundle assembly playing a crucial role as the core component. The tube bundle assembly is precisely assembled from key elements such as front and rear tube sheets, heat exchange tubes, fins, and support plates. Its compact yet complex structure aims to achieve highly efficient heat transfer. The front and rear tube sheets serve as the foundation for fixing and supporting the heat exchange tubes, while the fins are closely arranged between the tubes, significantly improving heat exchange efficiency by expanding the heat exchange area. The support plates enhance the stability of the overall structure, ensuring optimal tightness between the fins and the heat exchange tubes, thereby maintaining an efficient heat conduction path. This design not only requires precise matching between components but also imposes strict requirements on the number of fins to ensure the heat exchanger meets predetermined heat transfer performance standards.

[0003] However, in actual production, the number of fins often reaches tens of thousands, posing a significant challenge to fin counting. Traditionally, this counting process relies on manual checklist counting, where the number of fins is manually checked and recorded one by one. This method is not only time-consuming and labor-intensive, but also highly susceptible to counting errors due to fatigue or negligence, which in turn affects product quality and production efficiency. Utility Model Content

[0004] In view of this, this application provides a counting device, the main purpose of which is to solve the technical problem that the traditional plate-fin heat exchanger fin counting process relies on manual list counting method, which is time-consuming and labor-intensive, and is prone to counting errors due to fatigue or negligence, thereby affecting product quality and production efficiency.

[0005] This application provides a counting device, including:

[0006] platform;

[0007] A counting component is disposed on the platform;

[0008] A counter is mounted on the platform and connected to the counting component. The counter is configured to receive and display the counting information from the counting component.

[0009] In one feasible implementation, the counting component includes:

[0010] A lead screw, which is mounted on the platform surface;

[0011] A slide table, which is mounted on the lead screw.

[0012] In one feasible implementation, it also includes:

[0013] An electric motor is mounted on the platform and is configured to drive the lead screw to rotate.

[0014] In one feasible implementation, the counting component further includes:

[0015] A conductive element is disposed on the slide table and is used to contact the device under test.

[0016] In one feasible implementation, the conductive element includes:

[0017] A through hole is provided at the end of the conductive component;

[0018] A fixing member, which passes through the through hole and is connected to the slide.

[0019] In one feasible implementation, the counting component further includes:

[0020] A limiting stop plate is provided on the slide table.

[0021] In one feasible implementation, the device further includes:

[0022] A conductive clip is connected to the counter and is used to form a conductive circuit by contacting the device under test.

[0023] In one feasible implementation, the device further includes:

[0024] A slide rail is provided on the platform surface, and the position of the slide rail corresponds to the position of the lead screw.

[0025] In one feasible implementation, the device further includes:

[0026] Limit switches, and there are multiple limit switches, which are installed on the slide rail.

[0027] In one feasible implementation, the limit switch includes:

[0028] A first limit switch is located at one end of the slide rail;

[0029] The second limit switch is located at the other end of the slide rail;

[0030] The third limit switch is located between the first limit switch and the second limit switch.

[0031] This application provides a counting device, including: a platform; a counting component disposed on the platform; and a counter disposed on the platform, connected to the counting component, configured to receive and display the counting information from the counting component. This application utilizes a motor-driven lead screw to automatically move a slide and conductive components. An electrical signal triggering mechanism, where the conductive components contact the fins to form a closed loop, combined with an electronic counter to accurately record the number of contacts, enables continuous scanning and counting of the fins. This solves the problems of fatigue and error in traditional manual visual counting, significantly improving counting efficiency, and is particularly suitable for mass production scenarios.

[0032] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0033] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0034] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0035] Figure 1 A schematic diagram of the structure of a counting device provided in an embodiment of this application is shown;

[0036] Figure 2 This illustration shows an operational schematic diagram of a counting device provided in an embodiment of this application;

[0037] Figure 3 This paper shows a schematic diagram of the structure of a conductive component of a counting device according to an embodiment of this application;

[0038] Figure 4 A schematic diagram of the structure of the tube bundle assembly under test provided in an embodiment of this application is shown.

[0039] In the picture:

[0040] 1. Platform; 2. Motor; 3. Counter; 4. Lead screw; 5. Slide table; 6. Conductive component; 7. Limiting stop; 8. Slide rail. Detailed Implementation

[0041] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] See Figure 4 This illustration shows a schematic diagram of the structure of the tube bundle assembly to be tested provided in an embodiment of this application. The tube bundle component in the large plate-fin heat exchanger of the air separation compressor unit is the core of the product, consisting of front and rear tube sheets, heat exchange tubes, plates and fins, and a support plate. The front and rear tube sheets, fins, and support plate are connected by the expansion joints of the heat exchange tubes. To ensure the heat exchange area of ​​the heat exchanger, the number of fins in the tube bundle must meet the requirements. Traditional fin counting relies on manual visual inspection or basic sensor technology, which has significant bottlenecks: manual counting is prone to errors due to visual fatigue in densely arranged or small fin scenarios, and cannot adapt to the continuous detection requirements of tube bundles several meters long; in automated solutions, photoelectric sensors are easily affected by reflections and oil contamination, while mechanical contact sensors face problems of probe wear and high maintenance costs. In addition, modern non-uniform fin arrangements and complex auxiliary structures challenge the fixed detection threshold of traditional sensors, leading to missed detections or over-counting. The detection of multi-specification tube bundles requires customized equipment, parameter adjustment depends on professional personnel, equipment reuse rate is low, and upgrade costs are high.

[0045] See Figure 1 The diagram shows a structural schematic of a counting device provided in an embodiment of this application, including:

[0046] Platform 1;

[0047] A counting component is installed on platform 1;

[0048] Counter 3 is located on platform 1 and is connected to the counting component. Counter 3 is configured to receive and display the counting information from the counting component.

[0049] In the above embodiments, platform 1 can be a lifting vehicle with casters. The counting component is fixed to the platform 1 with bolts, and its installation position is aligned with the axis of the finned tube to be tested, ensuring that the movement trajectory of the counting component is parallel to the tube bundle to be tested. Counter 3 can be an electronic counter with a zeroing function, a built-in power supply, and is fixed to platform 1 with a bracket for easy observation and control.

[0050] The height-adjustable and movable nature of platform 1 allows this application to be used in equipment or parts with similar structures, such as air coolers, air conditioning refrigeration equipment radiators, and bimetallic rolled composite pipes. The rigid fixing method ensures the stability of the counting component during movement, avoiding counting errors caused by vibration, while also simplifying the overall structure of the device and facilitating integration with other components. The counting component, in conjunction with counter 3, realizes the function of measuring the number of fins in this application.

[0051] Furthermore, the counting component includes:

[0052] Lead screw 4 is mounted on the platform 1.

[0053] Slide 5 is mounted on lead screw 4.

[0054] In the above embodiment, the lead screw 4 can be a ball screw. The lead screw 4 is fixed to the platform 1 via a bearing seat, and its axis is parallel to the extension direction of the finned tube to be tested. The slide table 5 consists of a lead screw nut and a slider. The bottom is a nut structure that matches the thread of the lead screw 4, so that the slide table 5 can move along the axial direction of the lead screw 4.

[0055] Through the threaded engagement of the lead screw 4 and the slide table 5, precise linear displacement control of the slide table 5 can be achieved. With the drive of the motor 2, it can automatically traverse the entire length of the finned tube to be tested, avoiding positional deviations caused by manual movement and significantly improving counting stability.

[0056] Furthermore, the device also includes:

[0057] Motor 2 is mounted on platform 1 and is configured to drive lead screw 4 to rotate.

[0058] In the above embodiment, the motor 2 can be a servo motor. The motor 2 is fixed to one end of the platform 1 by a flange, and its output shaft is rigidly connected to the end of the lead screw 4 by a coupling to ensure that the power transmission is seamless.

[0059] Motor 2 directly drives lead screw 4 to rotate, providing power to lead screw 4. This eliminates intermediate errors in gear transmission or belt transmission, enabling the slide table 5 to achieve a fine level of movement speed and displacement accuracy, making it suitable for continuous counting scenarios of high-density fins.

[0060] See Figure 3 The diagram shows a schematic representation of the conductive component of a counting device according to an embodiment of this application. Further, the counting component also includes:

[0061] Conductive element 6 is mounted on slide table 5 and is used to contact the device under test.

[0062] In the above embodiment, the conductive element 6 can be made of 0.8mm highly conductive copper plate, in the shape of a strip, with an arc-shaped contact end with the fins to prevent scratching the fins. The end through hole of the conductive element 6 is aligned with the pre-set threaded hole on the slide table 5, and a bolt is used as a fixing component to pass through the through hole and lock it, realizing the vertical adjustable connection between the conductive element 6 and the slide table 5. One end of the conductive element 6 is connected to the counter 3 via a wire. The moving speed of the conductive element 6 can be controlled by adjusting the speed of the servo motor 1. To ensure good conductivity between the conductive element 6 and the fins, the speed should not be too fast, and the moving speed can be 1.2m / min.

[0063] The installation height and angle of the conductive component 6 are adjustable, which can be adapted to finned tubes of different diameters, ensuring reliable contact between the conductive component 6 and the fin surface, and avoiding missed detection due to poor contact.

[0064] Furthermore, the conductive element 6 includes:

[0065] A through hole is provided at the end of the conductive component 6;

[0066] The fastener passes through the through hole and connects to the slide table 5.

[0067] In the above embodiment, the conductive element 6 has a through hole and is fixed to the slide table 5 with screws, allowing for adjustable extension length. The end through hole of the conductive element 6 is an elliptical slot that extends through its thickness direction; the fixing member is a bolt with a spring washer, which passes through the through hole and locks into the threaded hole on the top of the slide table 5, allowing the conductive element 6 to slide horizontally within a certain range.

[0068] The elliptical slot and bolt fit together allow for fine adjustment of the horizontal position of the conductive component 6. This can accommodate tube bundles with uneven fin spacing or local deformation, and is used to adjust the extension length of the thin sheet. This ensures that the conductive component 6 is always aligned with the fin gap, avoiding contact failure due to misalignment.

[0069] Furthermore, the device also includes:

[0070] The conductive clip is connected to the counter 3 and is used to form a conductive circuit by contacting the device under test.

[0071] In the above embodiment, the conductive clamp is electrically connected to the input terminal of the counter 3 via a wire, and its clamping part is wrapped with insulating material, leaving only the contact end to be in contact with the surface of the finned tube to be tested.

[0072] After the conductive clip contacts the finned tube, a closed circuit is formed. The counter 3 can be triggered by the current on / off signal. Compared with photoelectric or mechanical triggering methods, it can effectively avoid the influence of oil, reflection or mechanical wear on the test results.

[0073] Furthermore, the counting component also includes:

[0074] Limiting baffle 7 is provided on the slide table 5.

[0075] In the above embodiment, the limit stop 7 is fixed to the side of the slide table 5 by screws. Its plane is perpendicular to the moving direction of the slide table 5 and maintains a sensing distance with the limit switch on the slide rail 8 to trigger the limit switch.

[0076] The limit stop 7 can trigger the limit switch when the slide table 5 moves to the set position, stop the motor 2 from running and terminate the counting, and at the same time prevent the slide table 5 from overtravel and collide, protecting the mechanical structure of the lead screw 4 and the slide table 5.

[0077] Furthermore, the device also includes:

[0078] Slide 8 is located on the platform 1, and its position corresponds to the position of lead screw 4.

[0079] In the above embodiment, the slide 8 is fixed to the platform 1 by bolts, and its track direction is parallel to the lead screw 4; the first and second limit switches are respectively installed at both ends of the slide 8, and the third limit switch is adjustablely installed in the middle of the slide 8 according to the length of the tube bundle to be tested.

[0080] The slide rail 8 is used to support the sliding of the slide table 5 and the first, second and third limit switches. The slide table 5 drives the conductive element 6 to slide through the fins of the tube bundle under test to realize the fin counting function of this application.

[0081] Furthermore, the device also includes:

[0082] Limit switches, there are multiple limit switches, which are installed on slide rail 8.

[0083] In the above embodiment, a slide rail 8 is installed on the platform 1. Three limit switches can be installed on three sliders with locking function to adjust the position of the limit switches. Alternatively, they can be attached to the groove of the slide rail 8 by magnetic base and distributed at a preset interval along the length of the slide rail 8. The trigger sensing surface of each limit switch faces the moving direction of the slide table 5, serving as the limit position and origin position when the slide table slides.

[0084] The detachable and movable connection between the limit switch and the slide rail 8 allows for quick increase, decrease, or adjustment of the number and position of the limit switches. For example, when detecting ultra-long tube bundles, limit points can be added to control the slide travel in segments, reduce the load fluctuation of the motor 2, and extend the service life of the equipment.

[0085] Furthermore, the limit switch includes:

[0086] The first limit switch is located at one end of the slide rail 8;

[0087] The second limit switch is located at the other end of the slide rail 8;

[0088] The third limit switch is located between the first limit switch and the second limit switch.

[0089] In the above embodiment, the first limit switch is installed at the starting position of the slide rail 8 as the initial reset trigger point of the slide table 5; the second limit switch is installed at the ending position of the slide rail 8 as the maximum travel hard limit of the slide table 5; the third limit switch is slidably fixed in the middle of the slide rail 8 by a slider, and its position is manually adjusted and locked according to the length of the tube bundle to be tested.

[0090] The driver and encoder of servo motor 1 can be set, and three limit switches are identified as the left and right limits and the starting origin of slide table 8, respectively. According to the spacing of the support plates of the tube bundle under test, the left limit switch (i.e., the first limit switch slider) is slid and locked to a preset distance on the left side of the left support plate. The origin limit switch (i.e., the third limit switch slider) is moved to the position of the first fin on the left support plate and locked. The right limit switch (i.e., the second limit switch slider) is moved to the right support plate and locked, ensuring that the fin counting range is all fins between the origin limit switch and the right limit switch.

[0091] See Figure 2This diagram illustrates the operation of a counting device according to an embodiment of this application. In use, the device is first placed next to the tube bundle to be tested. The platform 1 is moved to a suitable position, and the height of the adjustable platform 1 is adjusted accordingly. Then, based on the position of the support plate of the tube bundle to be tested, the limit positions of the first, second, and third limit switches are determined. The tube bundle support plate is clamped with conductive clamps. The starting origin of the slide table 5 is adjusted, and the extension length of the conductive element 6 is adjusted so that the conductive element 6 makes slight contact with the fins. The motor 2 is started, driving the ball screw 4 to rotate, which in turn drives the slide table 5 to move the conductive element 6 along the slide rail 8. When the conductive element 6 contacts the first fin, a circuit is formed, completing one count. As the slide table 5 moves, the circuit is broken as the conductive element 6 slides from the first fin to the second fin, and no counting occurs. When the conductive element 6 contacts the second fin, a circuit is formed, and the count is accumulated. This process continues until the last fin is reached. The upper limit stop plate 7 of the slide table 5 triggers the second limit switch to stop counting. At this point, the number displayed on the electronic counter represents the number of fins in this segment, completing the counting process.

[0092] This application provides a schematic diagram of a counting device, including: a platform 1; a counting component mounted on the platform 1; and a counter 3 mounted on the platform 1, connected to the counting component, and configured to receive and display the counting information from the counting component. This application utilizes a motor-driven lead screw to automatically move a slide and conductive components. An electrical signal triggering mechanism, where the conductive components contact the fins to form a closed loop, combined with an electronic counter to accurately record the number of contacts, enables continuous scanning and counting of the fins. This solves the problems of fatigue and error in traditional manual visual counting, significantly improving counting efficiency, and is particularly suitable for mass production scenarios.

[0093] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred embodiment, and the modules or processes shown in the drawings are not necessarily essential for implementing this application. Those skilled in the art will understand that the modules in the apparatus of the embodiment can be distributed within the apparatus of the embodiment as described, or can be modified to be located in one or more apparatuses different from this embodiment. The modules of the above-described embodiment can be combined into one module, or further divided into multiple sub-modules.

[0094] The serial numbers in this application are for descriptive purposes only and do not represent the superiority or inferiority of any particular implementation scenario. The above disclosures are merely a few specific implementation scenarios of this application; however, this application is not limited thereto, and any variations conceived by those skilled in the art should fall within the protection scope of this application.

Claims

1. A counting device, characterized in that, include: Platform (1); A counting component is disposed on the platform (1); The counting component includes: A lead screw (4) is provided on the platform (1); A slide (5) is mounted on the lead screw (4); Motor (2), the motor (2) is mounted on the platform (1), and the motor (2) is configured to drive the lead screw (4) to rotate; A conductive element (6) is disposed on the slide table (5) and is used to contact the device under test; A counter (3) is located on the platform (1) and connected to the counting component. The counter (3) is configured to receive and display the counting information from the counting component.

2. The apparatus according to claim 1, characterized in that, The conductive element (6) includes: A through hole is provided at the end of the conductive element (6); A fixing member is connected to the slide (5) through the through hole.

3. The apparatus according to claim 1, characterized in that, The counting component also includes: A limiting stop (7) is provided on the slide (5).

4. The apparatus according to claim 1, characterized in that, Also includes: A conductive clip is connected to the counter (3) and is used to form a conductive circuit by contacting the device under test.

5. The apparatus according to claim 1, characterized in that, Also includes: The slide (8) is located on the platform (1) and the position of the slide (8) corresponds to the position of the lead screw (4).

6. The apparatus according to claim 5, characterized in that, Also includes: Limit switches, there are multiple limit switches, which are installed on the slide rail (8).

7. The apparatus according to claim 6, characterized in that, The limit switch includes: The first limit switch is located at one end of the slide rail (8); The second limit switch is located at the other end of the slide (8); The third limit switch is located between the first limit switch and the second limit switch.

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