Polishing device for heat exchanger core

Abstract

The utility model relates to a heat exchanger core body polishing device which comprises a first displacement mechanism, a second displacement mechanism and a polishing mechanism, one part of the first displacement mechanism is movably connected with one part of the second displacement mechanism, and the other part of the second displacement mechanism is connected with the polishing mechanism. The second displacement mechanism, the polishing mechanism and displacement from the first position to the second position are achieved through the first displacement mechanism, displacement from the third position to the fourth position of the polishing mechanism is achieved through the second displacement mechanism, and polishing of the heat exchanger core is achieved through the polishing mechanism. The polishing device further comprises a first frame and a second frame, the first displacement mechanism is arranged in the first frame, and the second displacement mechanism is arranged in the second frame. And a machine grinding and manual control mode is adopted, so that the grinding efficiency is improved, traditional manual direct grinding is replaced, the labor intensity of workers is reduced, and the labor cost of enterprises is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger core grinding device. Background Art

[0002] Heat exchangers are indispensable equipment in many industrial processes, used to transfer heat between different media. The efficiency of heat exchangers directly affects the energy efficiency and reliability of industrial production processes, and the core of the heat exchanger is one of the key components, and its surface condition directly affects the effect of heat exchange. The traditional grinding method currently has the following problems:

[0003] (1) Traditional manual grinding or angle grinder grinding methods are inefficient and require a lot of manpower. Manual operation can easily lead to uneven grinding results, while angle grinders require operators to continuously control them, which increases labor intensity and has low production efficiency.

[0004] (2) Traditional manual grinding Due to the subjectivity of manual operation, it is difficult for traditional methods to ensure the consistency and smoothness of the surface of the heat exchanger core, that is, the grinding quality of the core cannot be guaranteed. At the same time, since manual operation and traditional angle grinders require operators to operate close to the workpiece, there are certain safety hazards. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a heat exchanger core grinding device to solve one or more problems in the prior art.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A heat exchanger core polishing device comprises a first displacement mechanism, a second displacement mechanism and a polishing mechanism, wherein a portion of the first displacement mechanism is movably connected to a portion of the second displacement mechanism, and another portion of the second displacement mechanism is connected to the polishing mechanism, the second displacement mechanism and the polishing mechanism are displaced from a first position to a second position by the first displacement mechanism, the polishing mechanism is displaced from a third position to a fourth position by the second displacement mechanism, and the polishing of the heat exchanger core is achieved by the polishing mechanism.

[0008] Furthermore, the polishing device also includes a first frame and a second frame, the first displacement mechanism is arranged in the first frame, and the second displacement mechanism is arranged in the second frame.

[0009] Furthermore, the first displacement mechanism includes a first motor, a first screw rod, at least two first guide rails and at least four first sliders. The first motor is fixedly arranged on the top of the first frame through a first fixing plate. The output end of the first motor is connected to one end of the first screw rod through a first coupling. The other end of the first screw rod is arranged in a first screw rod seat. Two first guide rails are fixedly connected to both sides of the first frame. The two first guide rails are respectively movably connected to two first sliders. The other side of the first slider is fixed to the first slide plate.

[0010] Furthermore, the second displacement mechanism includes a second motor, a second screw rod, at least two second guide rails and at least four second sliders. The second motor is fixedly arranged on the top of the second frame through a second fixing plate. The output end of the second motor is connected to one end of the second screw rod through a second coupling. The other end of the second screw rod is arranged in the second screw rod seat. Two second guide rails are fixedly connected to both sides of the second frame. The two second guide rails are respectively movably connected to the two second sliders. The other side of the second slider is fixed to the second slide plate.

[0011] Furthermore, the grinding mechanism includes a third motor and a grinding plate, the third motor is fixed to the second slide plate, and the output end of the third motor is connected to the grinding plate.

[0012] Furthermore, the first slide plate has a first protrusion, a first hole is formed on the first protrusion, and the first screw rod passes through the first hole;

[0013] The second slide plate has a second protrusion, a second hole is formed in the second protrusion, and the second screw rod passes through the second hole.

[0014] Furthermore, the grinding sheet is a wire wheel, and a protective shell is arranged outside the grinding sheet.

[0015] Furthermore, the polishing device also includes a distance measuring mechanism, and the distance measuring mechanism includes a laser distance meter. The laser distance meter is arranged on a side of the second slide plate away from the second sliding block.

[0016] Furthermore, the polishing device also includes a base plate and two side panels, the two side panels are respectively arranged on both sides of the base plate, an electric box is arranged on the side plate near the first frame, a display element is arranged above the electric box, and at least four universal wheel seats are arranged at the bottom of the base plate, and each of the universal wheel seats has a universal wheel.

[0017] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0018] (I) The utility model sets a first displacement mechanism, a second displacement mechanism and a grinding mechanism, realizes the displacement of the second displacement mechanism and the grinding mechanism from the first position to the second position through the first displacement mechanism, realizes the displacement of the grinding mechanism from the third position to the fourth position through the second displacement mechanism, realizes the grinding of the heat exchanger core through the grinding mechanism, and adopts a machine grinding and manual control method to improve the grinding efficiency, replace the traditional direct grinding by personnel, reduce the labor intensity of workers, and reduce the labor cost of the enterprise.

[0019] (ii) Furthermore, the utility model can realize long-term uninterrupted grinding by providing a third motor and a grinding disc, and directly driving the grinding disc through the third motor, thereby ensuring the rotational torque and long-term operation without heat, thereby improving production efficiency.

[0020] (III) Furthermore, the utility model provides a distance measuring mechanism to detect the distance between the grinding disc and the heat exchanger core, and sets the grinding range so that the grinding disc operates within a certain interval and orientation, thereby ensuring the consistency of grinding. When a special situation is detected in the heat exchanger core, the control unit alarms and controls the third motor to stop working, thereby preventing grinding damage to the heat exchanger core or injury to the surrounding environment and personnel, thereby improving the safety of the grinding process and improving the grinding quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A structural schematic diagram of a heat exchanger core grinding device according to an embodiment of the utility model is shown.

[0022] Figure 2 A partial structural schematic diagram of a heat exchanger core grinding device according to an embodiment of the utility model is shown.

[0023] Figure 3 A structural schematic diagram of a second displacement mechanism in a heat exchanger core grinding device according to an embodiment of the utility model is shown.

[0024] Figure 4 A structural schematic diagram of a grinding mechanism in a heat exchanger core grinding device according to an embodiment of the utility model is shown.

[0025] Markings in the accompanying drawings: 1, first displacement mechanism; 100, first fixed plate; 101, first motor; 102, first coupling; 103, first screw rod; 104, first screw rod seat; 105, first guide rail; 106, first slider; 107, first slide plate; 108, first protrusion; 1080, first hole; 2, second displacement mechanism; 200, second fixed plate; 201, second motor; 202, second coupling; 203, second screw rod; 204, second screw rod seat; 2 ... Second guide rail; 206, second slider; 207, second slide plate; 208, second protrusion; 2080, second hole; 3, grinding mechanism; 300, third motor; 301, grinding sheet; 302, protective shell; 4, distance measuring mechanism; 400, laser distance meter; 5, first frame; 500, vertical plate; 501, pad; 6, second frame; 600, horizontal plate; 601, connecting plate; 7, bottom plate; 8, side plate; 9, electrical box; 10, display element; 11, universal wheel seat; 12, universal wheel. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model clearer, the following is a further detailed description of a heat exchanger core grinding device proposed by the utility model in combination with the accompanying drawings and specific implementation methods. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model.

[0027] The specific structure of a heat exchanger core grinding device is described below:

[0028] A heat exchanger core grinding device, please refer to Figure 1, including a first displacement mechanism 1, a second displacement mechanism 2 and a polishing mechanism 3, a part of the first displacement mechanism 1 and a part of the second displacement mechanism 2 are movably connected, and the other part of the second displacement mechanism 2 is connected to the polishing mechanism 3. Specifically, in this embodiment, a part of the first displacement mechanism 1 specifically refers to a side facing the second displacement mechanism 2, a part of the second displacement mechanism 2 specifically refers to a side facing the first displacement mechanism 1, and the other part of the second displacement mechanism 2 specifically refers to a side away from the first displacement mechanism 1. The second displacement mechanism 2 and the polishing mechanism 3 are displaced from the first position to the second position by the first displacement mechanism 1, the polishing mechanism 3 is displaced from the third position to the fourth position by the second displacement mechanism 2, and the polishing of the heat exchanger core is achieved by the polishing mechanism 3. Specifically, in this embodiment, the displacement from the first position to the second position specifically refers to the displacement of the device in the Z-axis direction, and the displacement from the third position to the fourth position specifically refers to the displacement of the device in the X-axis direction.

[0029] Furthermore, the grinding device also includes a first frame 5 and a second frame 6, the first displacement mechanism 1 is arranged in the first frame 5, and the second displacement mechanism 2 is arranged in the second frame 6. Specifically, the first frame 5 is composed of a pad 501 and at least five vertical plates 500, and the pad 501 is arranged between the tops of the two vertical plates 500 located at the front end. The second frame 6 is composed of at least two transverse plates 600 and at least four connecting plates 601. The two transverse plates 600 are fixedly connected by the connecting plates 601, and the four connecting plates 601 are evenly distributed between the transverse plates 600.

[0030] For further information, please refer to Figure 1 and Figure 2 The first displacement mechanism 1 includes a first motor 101, a first screw rod 103, at least two first guide rails 105 and at least four first sliders 106. The first motor 101 is fixedly arranged on the top of the first frame 5 through a first fixing plate 100. The output end of the first motor 101 is connected to one end of the first screw rod 103 through a first coupling 102. The other end of the first screw rod 103 is arranged in a first screw rod seat 104. The two first guide rails 105 are fixedly connected to both sides of the first frame 5. Specifically, the two first guide rails 105 are respectively arranged on two vertical plates 500 at the front end of the first frame 5. The two first guide rails 105 are respectively movably connected to the two first sliders 106. The other side of the first slider 106 is fixed to the first slide plate 107.

[0031] For further information, please refer to Figure 3The second displacement mechanism 2 includes a second motor 201, a second screw rod 203, at least two second guide rails 205 and at least four second sliders 206. The second motor 201 is fixedly arranged on the top of the second frame 6 through a second fixed plate 200. The output end of the second motor 201 is connected to one end of the second screw rod 203 through a second coupling 202. The other end of the second screw rod 203 is arranged in the second screw rod seat 204. The two second guide rails 205 are fixedly connected to both sides of the second frame 6. Specifically, the two second guide rails 205 are respectively arranged on two horizontal plates 600 at the upper and lower ends of the second frame 6. The two second guide rails 205 are respectively movably connected to the two second sliders 206. The other side of the second slider 206 is fixed to the second slide plate 207.

[0032] For further information, please refer to Figure 4 The grinding mechanism 3 includes a third motor 300 and a grinding plate 301. The third motor 300 is fixed to the second slide plate 207. The output end of the third motor 300 is connected to the grinding plate 301. Specifically, in this embodiment, the third motor 300 adopts a three-phase AC motor. The grinding plate 301 is directly driven by the three-phase AC motor, which can achieve long-term uninterrupted grinding, ensure the rotational torque and long-term operation without heat, and improve production efficiency. The traditional angle grinder will heat up after 1 to 2 hours of use. If it runs for a long time, it will easily burn out the angle grinder, increasing the company's use cost.

[0033] Furthermore, the first slide plate 107 has a first protrusion 108 , a first hole 1080 is formed on the first protrusion 108 , and the first screw rod 103 passes through the first hole 1080 . The first slide plate 107 can achieve displacement along the Z-axis direction on the first screw rod 103 through the first hole 1080 .

[0034] The second slide plate 207 has a second protrusion 208 . The second protrusion 208 has a second hole 2080 . The second screw rod 203 passes through the second hole 2080 . The second slide plate 207 can be displaced along the X-axis direction on the second screw rod 203 through the second hole 2080 .

[0035] Furthermore, the grinding sheet 301 is a wire wheel. Preferably, in the present embodiment, the width of the wire wheel is 100 mm to 200 mm. The larger the width, the larger the area that can be ground at a single time. The overall efficiency of the grinding operation can be improved in the same time. A protective shell 302 is disposed outside the grinding sheet 301.

[0036] Furthermore, the grinding device also includes a distance measuring mechanism 4, and the distance measuring mechanism 4 includes a laser rangefinder 400. The laser rangefinder 400 is arranged on a side of the second slide plate 207 away from the second slider 206. Furthermore, by setting the laser rangefinder 400 to set the grinding range, the grinding sheet 301 can operate within a certain range and orientation, thereby ensuring the consistency of grinding.

[0037] Furthermore, the grinding device also includes a base plate 7 and two side plates 8, and the two side plates 8 are respectively arranged on both sides of the base plate 7. An electric box 9 is arranged on the side plate 8 near the first frame 5. Specifically, a control unit is provided in the electric box 9, and the first motor 101, the second motor 201, the third motor 300 and the laser rangefinder 400 are all connected to the control unit, and the displacement distance and speed are controlled by the control unit in the electric box 9. A display element 10 is arranged above the electric box 9 for displaying the parameters of each component, and the rotation speed of each component can be adjusted through the touch screen. At least four universal wheel seats 11 are arranged at the bottom of the base plate 7, and each of the universal wheel seats 11 has a universal wheel 12, and the grinding device can be moved as a whole to the position to be ground by the universal wheel 12.

[0038] The specific working process of a heat exchanger core grinding device described in an embodiment of the utility model is described as follows:

[0039] Please refer to Figures 1 to 4 , place the product to be polished on one side of the polishing device close to the polishing mechanism 3, detect the distance between the polishing sheet 301 in the polishing mechanism 3 and the heat exchanger core by the laser rangefinder 400, and feed it back to the control unit in the electric box 9 to determine whether it is within the polishable distance range. If it is not within the distance range, the second displacement mechanism 2 is controlled to move in the X direction by manually operating the control unit until the distance between the polishing sheet 301 and the heat exchanger core is within the polishable distance range. At this time, the third motor 300 drives the polishing sheet 301 to rotate and polish. At the same time, the first displacement mechanism 1 drives the second displacement mechanism 2 and the polishing mechanism 3 to achieve displacement in the Z direction according to the set sliding parameters (i.e., the polishing speed, which can be manually set or adjusted according to actual conditions), so that the polishing sheet 301 can reciprocate up and down on the heat exchanger core. After one side of the product is polished, switch to other sides and continue to polish according to the above process until all sides of the heat exchanger core are polished.

[0040] Among them, the working process of the first displacement mechanism 1 is specifically as follows: start the first motor 101, transmit the torque to the first screw rod 103, and after the first screw rod 103 rotates, it drives the first slider 106 to make reciprocating motion in the Y direction on the first guide rail 105, that is, drives the first slide plate 107 and the second displacement mechanism 2 connected to the first slide plate 107 to make reciprocating motion in the Y direction.

[0041] The working process of the second displacement mechanism 2 is specifically as follows: the second motor 201 is started to transmit the torque to the second screw rod 203. After the second screw rod 203 rotates, it drives the second slider 206 to make reciprocating motion in the X direction on the second guide rail 205, that is, it drives the second slide plate 207 and the grinding mechanism 3 connected to the second slide plate 207 to make reciprocating motion in the X direction.

[0042] At the same time, during the grinding process, the laser rangefinder 400 detects the distance between the grinding plate 301 and the heat exchanger core in real time. When a special situation occurs in the heat exchanger core, the distance detected by the laser rangefinder 400 may partially increase or decrease. At this time, the laser rangefinder 400 will feedback a signal to the control unit in the electrical box 9. The control unit will alarm and control the third motor 300 to stop working to prevent grinding damage to the heat exchanger core or damage to the surrounding environment and personnel.

[0043] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A heat exchanger core grinding device, comprising a first displacement mechanism, a second displacement mechanism and a grinding mechanism, characterized in that: A part of the first displacement mechanism is movably connected to a part of the second displacement mechanism, and another part of the second displacement mechanism is connected to the polishing mechanism. The first displacement mechanism is used to realize the polishing mechanism of the second displacement mechanism and the displacement from the first position to the second position. The second displacement mechanism is used to realize the displacement of the polishing mechanism from the third position to the fourth position. The polishing mechanism is used to realize the polishing of the heat exchanger core. The grinding sheet is a wire wheel, and a protective shell is arranged outside the grinding sheet; The polishing device also includes a base plate and two side plates, the two side plates are respectively arranged on both sides of the base plate, an electric box is arranged on the side plate near the first frame, a display element is arranged above the electric box, and at least four universal wheel seats are arranged at the bottom of the base plate, each of the universal wheel seats has a universal wheel.

2. A heat exchanger core grinding device according to claim 1, characterized in that: The grinding device further includes a first frame and a second frame. The first displacement mechanism is disposed in the first frame, and the second displacement mechanism is disposed in the second frame.

3. A heat exchanger core grinding device according to claim 2, characterized in that: The first displacement mechanism includes a first motor, a first screw rod, at least two first guide rails and at least four first sliders. The first motor is fixedly arranged on the top of the first frame through a first fixing plate. The output end of the first motor is connected to one end of the first screw rod through a first coupling. The other end of the first screw rod is arranged in a first screw rod seat. Two first guide rails are fixedly connected to both sides of the first frame. The two first guide rails are respectively movably connected to two first sliders. The other side of the first slider is fixed to the first slide plate.

4. A heat exchanger core grinding device according to claim 3, characterized in that: The second displacement mechanism includes a second motor, a second screw rod, at least two second guide rails and at least four second sliders. The second motor is fixedly arranged on the top of the second frame through a second fixing plate. The output end of the second motor is connected to one end of the second screw rod through a second coupling. The other end of the second screw rod is arranged in the second screw rod seat. Two second guide rails are fixedly connected to both sides of the second frame. The two second guide rails are respectively movably connected to two second sliders. The other side of the second slider is fixed to the second slide plate.

5. A heat exchanger core grinding device according to claim 4, characterized in that: The grinding mechanism includes a third motor and a grinding plate. The third motor is fixed to the second slide plate, and the output end of the third motor is connected to the grinding plate.

6. A heat exchanger core grinding device according to claim 5, characterized in that: The first slide plate has a first protrusion, a first hole is formed in the first protrusion, and the first screw rod passes through the first hole; The second slide plate has a second protrusion, a second hole is formed in the second protrusion, and the second screw rod passes through the second hole.

7. A heat exchanger core grinding device according to claim 1, characterized in that: The polishing device further comprises a distance measuring mechanism, wherein the distance measuring mechanism comprises a laser distance measuring device, and the laser distance measuring device is arranged on a side of the second sliding plate away from the second sliding block.

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