Single-crankshaft automatic descaling transmission

Abstract

In order to achieve the above object, the present application provides the following technical scheme: a single-crank automatic crankshaft oxide removal transmission device, comprising a transmission mechanism, a crank cleaning mechanism, a turnover mechanism, a spraying mechanism and a controller, the crank cleaning mechanism, the turnover mechanism and the spraying mechanism are sequentially arranged on the transmission mechanism; the present application has the beneficial effects that: the original mechanism of the conveying device is used to realize the oxide removal treatment of multiple positions of the crankshaft, the processing cost is lower, the automation degree is higher, the processing quality is better, and the normal processing rhythm of the crankshaft forging is not affected at all.

Description

TECHNICAL FIELD

[0001] The present application relates to the mechanical technical field, specifically to a single-crank automatic crankshaft oxide removal transmission device. BACKGROUND

[0002] Because the crankshaft forging is complex in shape, the die groove is deep, and it is not easy to blow the oxide skin in the die cavity during production, or the oxide skin formed by the blank itself is not easy to fall off, and the oxide pits defects are formed by pressing into the surface of the forging, which will seriously affect the appearance quality at the non-machining surface, or significantly increase the polishing workload, and in severe cases, it will cause the crankshaft to be scrapped, so the treatment of oxide skin during the crankshaft forging process is a very important link in the crankshaft forging production, and the conventional treatment in the prior art is to use an air gun to blow, which is not only time-consuming and labor-intensive, but also has poor effect, and in the current situation of excess production capacity and cruel competition, the crankshafts with poor surface quality and quality risks are difficult to be accepted by the market. SUMMARY

[0003] The purpose of the present application is to provide a single-crank automatic crankshaft oxide removal transmission device to solve the problems raised in the background.

[0004] In order to achieve the above object, the present application provides the following technical scheme: a single-crank shaft automatic oxide removal transmission device, comprising a transmission mechanism, a crank cleaning mechanism, a turnover mechanism, a spraying mechanism and a controller, the crank cleaning mechanism, the turnover mechanism and the spraying mechanism are sequentially arranged on the transmission mechanism; the transmission mechanism comprises a rack, a first driving unit and a conveying unit, the first driving unit is arranged on one side of the rack, the conveying unit is arranged above the rack, the first driving unit drives the conveying unit to operate, the front section of the conveying unit comprises a crank groove, a front section transmission belt, a rear section transmission belt and an auxiliary transmission belt, the front section transmission belt and the rear section transmission belt are both composed of a track and a plurality of rotating shafts, the rotating shafts are arranged between the two tracks, the crank groove is arranged in the middle of the front section transmission belt, the width of the crank groove is greater than the width of the crank shaft in the axial direction, the front section transmission belt is composed of two parts, which are arranged on both sides of the crank groove, the auxiliary transmission belt is arranged at the tail end of the crank groove, one end of the auxiliary transmission belt is arranged in the crank groove, and the other end is connected to the tail end of the crank groove, the total height of the auxiliary transmission belt is greater than the maximum height of the crank in the radial direction, and the rear section of the conveying unit is provided with a rear section transmission belt; the crank cleaning mechanism comprises a second driving unit, a cleaning unit and a first position sensor, the second driving unit is arranged on one side of the rack, the cleaning unit is arranged below the front section transmission belt, and the cleaning working part of the cleaning unit is close to the crank groove, and the first position sensor is arranged below the crank groove and located on the front side of the cleaning unit; the turnover mechanism comprises a top head, an air cylinder, a gas supply unit, a second position sensor and a knocking head, the top head is fixed to the end of the air cylinder telescopic rod, the air cylinder is arranged below the middle of the crank groove and fixed to the rack through an auxiliary frame, the telescopic direction of the air cylinder is opposite to the crank groove, the gas supply unit is arranged outside the rack and communicates with the air source of the air cylinder, the second position sensor is arranged on the front side of the air cylinder and fixed to the air cylinder through the auxiliary frame, and the knocking head is located on the rear side of the air cylinder and fixed to the air cylinder through the auxiliary frame; steel brushes are arranged on the front section transmission belts on both sides of the turnover mechanism; the spraying mechanism is arranged above the rear section transmission belt, and comprises a water tank, a high-pressure pump, a spray head, a support and a third position sensor, the water tank is arranged outside the rack and connected to the high-pressure pump, the high-pressure pump is connected to the spray head, the number of the spray head is one or more than one, the spray head is fixed through the support, the support is connected to the rack or directly falls to the ground, and the third position sensor is arranged on the front side of the spray head; the controller is electrically connected with the first position sensor, the second position sensor and the third position sensor, and is also electrically connected with the switches or control valves of the first driving unit, the second driving unit, the gas supply unit and the high-pressure pump.

[0005] Preferably, the number of the spray head is 5, one of which is opposite to the connecting rod journal, two of which are opposite to the included angle between the crank and the crankshaft rod, and the other two are opposite to the axial end of the crankshaft.

[0006] Preferably, the support is a rectangular door frame structure, which comprises two side plates and a top plate, one end of the top plate is connected to the upper end of one of the side plates, the other end of the top plate is connected to the upper end of the other side plate, and the lower ends of the two side plates directly fall to the ground.

[0007] Preferably, the first driving unit comprises a first driving motor and a belt transmission assembly, the first driving motor drives a first rotating shaft on the front section transmission belt through belt transmission, the first rotating shaft drives a second rotating shaft on the front section transmission belt through belt transmission, the second rotating shaft drives a third rotating shaft on the front section transmission belt through belt transmission, and all rotating shafts on the front section transmission belt are driven to rotate in turn, wherein the last rotating shaft on one of the front section transmission belts drives a first rotating shaft on the rear section transmission belt through belt transmission, the first rotating shaft drives a second rotating shaft on the rear section transmission belt through belt transmission, the second rotating shaft drives a third rotating shaft on the rear section transmission belt through belt transmission, and all rotating shafts on the rear section transmission belt are driven to rotate in turn.

[0008] Preferably, the second driving unit comprises a second driving motor and a second transmission assembly, the cleaning unit comprises two rotating wheels, each rotating wheel is provided with steel brush hairs in the circumferential direction, and the two rotating wheels are horizontally arranged below the two front section transmission belts respectively.

[0009] Preferably, the two front section transmission belts are inclined to one side of the crank groove.

[0010] Preferably, the upper surface of the top head is an inclined surface, which is inclined downward from the rear side to the front side of the top head.

[0011] Preferably, the upper surface of the knocking head is an arc surface, which is inclined downward from the front side to the rear side of the knocking head.

[0012] Preferably, the inner bottom of the rack is provided with a slag receiving box.

[0013] Preferably, the third position sensor is arranged on the front side of the support and fixed on the support.

[0014] Compared with the prior art, the beneficial effects of the present application are that an automatic oxide skin removing mechanism is designed on the crankshaft transmission device, the oxide skin of the forged crankshaft is treated without affecting the conveying efficiency of the crankshaft, each treatment process has strong pertinence, and the original mechanism of the conveying device is used to realize the oxide skin removing treatment of multiple positions of the crankshaft, the treatment cost is low, the automation degree is high, the treatment quality is good, and the normal processing rhythm of the crankshaft forging is not affected at all. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of a single-crank crankshaft automatic oxide skin removing transmission device of the present application.

[0016] Figure 2 It is a structure schematic view of a single-crank crankshaft automatic oxide skin removing transmission device of the present application. Figure 1 It is an enlarged schematic view of the A part of the structure.

[0017] Figure 3 It is an enlarged schematic view of the A part of the structure.Figure 1 Structure diagram of middle B-B section;

[0018] Figure 4 Structure diagram of a single-crank automatic crankshaft oxide removal transmission device side view of the present application;

[0019] Figure 5 Structure diagram of the turnover mechanism of the present application;

[0020] Figure 6 Structure diagram of the auxiliary transmission belt of the present application.

[0021] In the figure: 1 transmission mechanism, 1-1 rack, 1-2 first driving unit, 1-3 conveying unit, 1-3-1 crank slot, 1-3-2 front section transmission belt, 1-3-3 rear section transmission belt, 1-3-4 auxiliary transmission belt, 2 crank cleaning mechanism, 2-1 second driving unit, 2-2 cleaning unit, 2-3 first position sensor, 3 turnover mechanism, 3-1 top head, 3-2 cylinder, 3-3 air supply unit, 3-4 second position sensor, 3-5 knocking head, 4 spraying mechanism, 4-1 water tank, 4-2 high-pressure pump, 4-3 spray head, 4-4 support, 4-5 third position sensor, 5 controller. Embodiment

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application,

[0023] Please refer to Figures 1-6The application provides the following technical scheme: a single-crankshaft automatic oxide removal transmission device, comprising a transmission mechanism 1, a crank cleaning mechanism 2, a turnover mechanism 3, a spraying mechanism 4 and a controller 5, wherein the crank cleaning mechanism, the turnover mechanism and the spraying mechanism are sequentially arranged on the transmission mechanism; the transmission mechanism comprises a rack 1-1, a first driving unit 1-2 and a conveying unit 1-3, the first driving unit is arranged on one side of the rack, the conveying unit is arranged above the rack, the first driving unit drives the conveying unit to operate, the front section of the conveying unit comprises a crank groove 1-3-1, a front section transmission belt 1-3-2, a rear section conveying belt 1-3-3 and an auxiliary transmission belt 1-3-4, the front section transmission belt and the rear section conveying belt are both composed of a track and a plurality of rotating shafts, the rotating shafts are arranged between the two tracks, the crank groove is arranged in the middle of the front section conveying belt, the width of the crank groove is greater than the width of the crankshaft in the axial direction, the front section transmission belt comprises two transmission belts which are arranged on the two sides of the crank groove, the auxiliary transmission belt is arranged at the tail end of the crank groove, one end of the auxiliary transmission belt is arranged in the crank groove, and the other end of the auxiliary transmission belt is connected to the tail end of the crank groove, the total height of the auxiliary transmission belt is greater than the maximum height of the crankshaft in the radial direction, and the rear section of the conveying unit is provided with a rear section transmission belt; the crank cleaning mechanism 2 comprises a second driving unit 2-1, a cleaning unit 2-2 and a first position sensor 2-3, the second driving unit is arranged on one side of the rack, the cleaning unit is arranged below the front section transmission belt, the cleaning working part of the cleaning unit is close to the crank groove, and the first position sensor is arranged below the crank groove and located on the front side of the cleaning unit; the turnover mechanism 3 comprises a top head 3-1, an air cylinder 3-2, a gas supply unit 3-3, a second position sensor 3-4 and a knocking head 3-5, the top head is fixed to the end of the telescopic rod of the air cylinder, the air cylinder is arranged below the middle of the crank groove and fixed to the rack through an auxiliary frame, the telescopic direction of the air cylinder is opposite to the crank groove, the gas supply unit is arranged outside the rack and communicates with the air source of the air cylinder, the second position sensor is arranged on the front side of the air cylinder and fixed to the air cylinder through the auxiliary frame, and the knocking head is located on the rear side of the air cylinder and fixed to the air cylinder through the auxiliary frame; steel brushes are arranged on the front section transmission belts on the two sides of the turnover mechanism; the spraying mechanism 4 is arranged above the rear section transmission belt and comprises a water tank 4-1, a high-pressure pump 4-2, a spray head 4-3, a support 4-4 and a third position sensor 4-5, the water tank is arranged outside the rack and connected to the high-pressure pump, the high-pressure pump is connected to the spray head, the number of the spray head is one or more than one, the spray head is fixed through the support, the support is connected to the rack or directly falls to the ground, and the third position sensor is arranged on the front side of the spray head; the controller is electrically connected with the first position sensor, the second position sensor and the third position sensor, and is electrically connected with the switches or control valves of the first driving unit, the second driving unit, the gas supply unit and the high-pressure pump.The single-crank automatic oxide skin removing transmission device of the application designs an automatic oxide skin removing mechanism on the crankshaft transmission device, which removes the oxide skin of the forged crankshaft without affecting the transmission efficiency of the crankshaft, and comprehensively processes each position of the crankshaft, each processing process has strong pertinence, and the original mechanism of the conveying device is used to realize the oxide skin removing processing of multiple positions of the crankshaft, the processing cost is low, the automation degree is high, the processing quality is good, and the normal processing rhythm of the crankshaft forging is not affected at all. The controller, the first driving unit, the second driving unit, the gas supply unit and the high-pressure pump need to be electrically connected.

[0024] As shown in Figures 1-6 The number of the spray heads is 5, 1 is opposite to the connecting rod journal, 2 are opposite to the included angle between the crank and the crankshaft rod part, and 2 are opposite to the axial end of the crankshaft. After the crank cleaning mechanism and the turnover mechanism, the crank, the crankshaft rod part and the connecting rod journal are subjected to targeted oxide skin removing processing, and the connecting part of the connecting rod journal and the crank and the connecting part of the crank rod and the crank are easy to leave the oxide skin which is difficult to remove. The oxide skin in these places is also the most likely to affect the quality of the crank forging in the subsequent forging process, so 5 spray heads are arranged for further targeted processing to remove the parts which are difficult to remove and the parts which are small in position and difficult to target (such as the end of the crank), and the crank is further comprehensively processed.

[0025] The support is a rectangular door frame structure, which comprises two side plates and a top plate, one end of the top plate is connected to the upper end of one of the side plates, the other end of the top plate is connected to the upper end of the other side plate, and the lower ends of the two side plates are directly placed on the ground. The spray mechanism can easily produce large water mist, which can bring the treated oxide skin and cause pollution of the working environment. Therefore, the rectangular door frame structure support is beneficial to protect the working environment and facilitate the use of the support function. The first driving unit comprises a first driving motor and a belt transmission assembly. The first driving motor drives the first rotating shaft on the front section of the transmission belt through belt transmission. The first rotating shaft on the front section of the transmission belt drives the second rotating shaft through belt transmission. The second rotating shaft drives the third rotating shaft through belt transmission, and so on, to drive all the rotating shafts on the front section of the transmission belt to rotate. One end of the last rotating shaft on one of the front sections of the transmission belt drives the first rotating shaft on the rear section of the transmission belt through belt transmission. The first rotating shaft on the rear section of the transmission belt drives the second rotating shaft through belt transmission. The second rotating shaft drives the third rotating shaft through belt transmission, and so on, to drive all the rotating shafts on the rear section of the transmission belt to rotate. This design is simple and effective in power transmission, and has order and organization, which is easy to implement. The second driving unit comprises a second driving motor and a second transmission assembly. The cleaning unit comprises two rotating wheels, each rotating wheel is provided with steel brush hairs on the circumference, and the two rotating wheels are horizontally arranged below the two front sections of the transmission belt, respectively. The second driving motor drives the two rotating wheels to rotate through the second transmission assembly. The steel brush hairs on the rotating wheels are directly and effectively used to remove the oxide skin on the outside of the crankshaft crank. The cost is low and the specificity is strong. The two front sections of the transmission belt are inclined to one side of the crank slot. Since the front section of the transmission belt is the initial treatment, the removed oxide skin is usually large and cannot be easily discharged through the gap between the rotating shafts. Therefore, the inclined setting is beneficial to slide the large oxide skin into the crank slot for centralized cleaning, so as to prevent a large amount of large oxide skin from accumulating on the front section of the transmission belt. In addition, the diameters of the crankshaft rod parts are various, but generally the inside of the crank is large and the two end parts are small. Therefore, the inclined surface is provided to facilitate the rotating shaft with steel brush hairs to clean the oxide skin on the crankshaft rod. The upper surface of the top head is inclined, and the inclination is from the rear side to the front side of the top head. The crankshaft crank gradually realizes 90-degree overturning along the inclined surface, which is beneficial to the rotating shaft with steel brush hairs on both sides of the overturning mechanism to remove the oxide skin on the crankshaft rod. At the same time, a overturning guide angle is reserved for the subsequent top head to lift the crankshaft crank, and the overall overturning of the crankshaft can only be realized after the crankshaft is pre-rotated by 90 degrees or a certain angle. The upper surface of the knocking head is an arc surface, which is inclined from the front side to the rear side of the knocking head. The arc surface design is to make the overturned crankshaft have a better knocking effect. It needs to be emphasized that the upper surfaces of the top head and the knocking head are made of high-temperature resistant materials. A slag receiving box is arranged on the inner side of the bottom of the rack. It is convenient to centrally clean the oxide skin. The third position sensor is arranged on the front side of the support and fixed on the support.It can be understood that each position sensor is directly opposite the crankshaft body, mainly for detecting whether the crankshaft passes and whether corresponding processing is needed, and after each position sensor receives the model, the actuator can be controlled by a time delay relay to operate within a time delay range, or the previous actuator can be stopped when the next position sensor is triggered. The device described in the application can be controlled for 5-10 seconds, which is the best, and there are many ways, which will not be listed.

[0026] Working principle: the crankshaft after forging processing is placed at the front of the transmission device by clamping tools, specifically, the crankshaft rod part is placed on two front conveying belts, the crankshaft crank part falls into the crank groove, and the crankshaft moves backward with the conveying mechanism when the controller starts the conveying mechanism. When reaching the first position sensor position, the controller starts the crank cleaning mechanism to remove the oxide skin outside the crank. When the crankshaft reaches the second position sensor position, the crankshaft is first rotated by the inclined surface of the top head, and then the crankshaft is lifted and turned over by the top head under the action of the cylinder. After the crankshaft is turned over, it collides with the knocking head to clean the oxide skin of the crankshaft crank part by vibration. At the same time, the rotating shaft with steel brush on both sides of the turning mechanism cleans the crankshaft rod part in one round. Subsequently, the crankshaft crank is turned over by 90 degrees along the auxiliary transmission belt and enters the rear conveying belt. When the crankshaft reaches the third position sensor position, the spraying mechanism is started to clean the parts difficult to clean and the whole. Finally, the crankshaft with the oxide skin cleaned is conveyed to the next station by the rear conveying belt.

[0027] The terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is a simplified description for the convenience of describing the application, 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 protection scope of the application.

[0028] Although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. An automatic descaling transmission device for a single-crankshaft, comprising a transmission mechanism, a crank cleaning mechanism, a tilting mechanism, a spraying mechanism, and a controller, wherein the crank cleaning mechanism, the tilting mechanism, and the spraying mechanism are all sequentially arranged on the transmission mechanism; the transmission mechanism includes a frame, a first drive unit, and a conveying unit, the first drive unit being disposed on one side of the frame, and the conveying unit being disposed above the frame, the first drive unit driving the conveying unit to operate, the front section of the conveying unit including a crank groove, a front transmission belt, a rear conveyor belt, and an auxiliary transmission belt, the front transmission belt and the rear conveyor belt both consisting of rails and multiple rotating shafts, the rotating shafts being placed between the two side rails, and the crank groove being disposed in the middle of the front conveyor belt. The crank groove width is greater than the crank axial width. Two front drive belts are positioned on either side of the crank groove. An auxiliary drive belt is positioned at the tail end of the crank groove, with one end extending into the crank groove and the other end connected to the tail end. The total height of the auxiliary drive belt is greater than the maximum radial height of the crank. A rear drive belt is provided at the rear of the conveying unit. The crank cleaning mechanism includes a second drive unit, a cleaning unit, and a first position sensor. The second drive unit is located on one side of the frame, and the cleaning unit is positioned below the front drive belts, with its cleaning working part close to the crank groove. The second drive unit includes a second drive motor and a second transmission assembly. The cleaning unit includes two rotating wheels, each with a circular... The cleaning unit is equipped with steel brush bristles. Two rotating wheels are horizontally positioned below two front-end transmission belts. A second drive motor drives the two rotating wheels to rotate via a second transmission assembly. A first position sensor is located below the crank groove and at the front of the cleaning unit. The tilting mechanism includes a top head, a cylinder, an air supply unit, a second position sensor, and a striking head. The top head is fixed to the end of the cylinder's telescopic rod. The cylinder is located in the middle below the crank groove and is fixed to the frame via an auxiliary frame. The cylinder's telescopic direction faces the crank groove. The air supply unit is located outside the frame and is connected to the cylinder's air source. The second position sensor is located at the front of the cylinder and is fixed to the cylinder via an auxiliary frame. The striking head is located at the rear of the cylinder and is connected to the air supply unit. The auxiliary frame is fixed to the cylinder. Steel brush bristles are provided on the front transmission belts on both sides of the flipping mechanism. The spraying mechanism is located above the rear transmission belt and includes a water tank, a high-pressure pump, a nozzle, a bracket, and a third position sensor. The water tank is located outside the frame and connected to the high-pressure pump. The high-pressure pump is connected to the nozzle. There is one or more nozzles. The nozzles are fixed by the bracket, which is connected to the frame or directly to the ground. The third position sensor is located in front of the nozzle. The controller is electrically connected to the first position sensor, the second position sensor, and the third position sensor, and is also electrically connected to the switch or control valve of the first drive unit, the second drive unit, the air supply unit, and the high-pressure pump.

2. The automatic descaling transmission device for a single-crankshaft according to claim 1, characterized in that: The number of nozzles is 5: 1 facing the connecting rod journal, 2 facing the angle between the crank and the crankshaft shaft, and 2 facing the axial end of the crankshaft.

3. The automatic descaling transmission device for a single-crankshaft according to claim 1, characterized in that: The bracket is a rectangular door frame structure, which includes two side plates and a top plate. One end of the top plate is connected to the upper end of one of the side plates, and the other end of the top plate is connected to the upper end of the other side plate. The lower ends of the two side plates are directly on the ground.

4. The automatic descaling transmission device for a single-crankshaft according to claim 1, characterized in that: The first drive unit includes a first drive motor and a belt drive assembly. The first drive motor drives the first shaft on the two front conveyor belts via belt drive. The first shaft on the front conveyor belt drives the second shaft via belt drive. The second shaft drives the third shaft via belt drive, and so on, driving all the shafts on the front conveyor belts to rotate. The last shaft on one of the front conveyor belts drives the first shaft on the rear conveyor belt via belt drive. The first shaft on the rear conveyor belt drives the second shaft via belt drive. The second shaft drives the third shaft via belt drive, and so on, driving all the shafts on the rear conveyor belts to rotate.

5. The automatic descaling transmission device for a single-crankshaft according to claim 1, characterized in that: Both of the aforementioned front drive belts are inclined toward the crank groove side.

6. The automatic descaling transmission device for a single-crankshaft according to claim 1, characterized in that: The top surface of the top is a slope, which slopes downward from the rear to the front of the top.

7. The automatic descaling transmission device for a single-crankshaft according to claim 1 or 6, characterized in that: The upper surface of the striking head is an arc surface, which slopes downward from the front to the back of the striking head.

8. The automatic descaling transmission device for a single-crankshaft according to claim 1, characterized in that: A slag collection box is provided at the bottom inner side of the frame.

9. A single-crankshaft automatic descaling transmission device according to claim 1 or 3, characterized in that: The third position sensor is located on the front side of the bracket and fixed to the bracket.

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