Net winding and cutting test bed

Abstract

The invention provides a net winding and cutting test bed which comprises a rack assembly, a net feeding rubber roller, a pair of net clamping steel rollers, a net cutting mechanism, a net pulling belt, an electromagnetic force clutch, a driving mechanism, a spiral net unfolding rod, a net pulling driving roller, a net pulling driven roller and a tensioning roller. The net feeding rubber roller, the pair of net clamping steel rollers, the spiral net unfolding rod, the net pulling driving roller, the net pulling driven roller and the tensioning roller are all rotationally installed in the rack assembly, the net cutting mechanism and the driving mechanism are both installed on the rack assembly, the net feeding rubber roller is located between the pair of net clamping steel rollers, and the net cutting mechanism is in transmission connection with the net feeding rubber roller. The net pulling driving roller is connected with the tensioning roller through the net pulling belt, the net pulling driven roller abuts against the net pulling belt, the driving mechanism is in transmission connection with one end of the net pulling driving roller, the electromagnetic clutch is installed at the other end of the net pulling driving roller, and the net conveying rubber roller is in transmission connection with the electromagnetic clutch.

Description

Technical Field

[0001] The invention relates to the technical field of baling machines, in particular to a net winding and cutting test bench. Background Art

[0002] With the rapid economic development, the animal husbandry industry has a good development trend, and the demand for forage is increasing. Natural forage can no longer meet the needs of animal husbandry development, so corn straw and wheat straw have gradually become forage for animal husbandry in some areas. Mechanized forage harvesting technology has very mature experience, and there are many types of mechanized harvesting. The most commonly used mechanized harvesting equipment is square grass baler and round grass baler.

[0003] In traditional round balers, the net wrapping mechanism is the key mechanism for wrapping the bale. The net wrapping device is only a functional mechanism installed on the main frame of the round baler. That is, the net wrapping mechanism can achieve the functions of net feeding, net cutting and reset by using the power of the main machine, the electric control hydraulic pressure and other linkage mechanisms. The net wrapping function is an important functional mechanism of the main machine, and its overall mechanism usually relies on the test of the main machine to test the net wrapping function.

[0004] Existing round baler wrapping technology is mainly a mechanism assembled on the whole machine and linked to each other, which cannot be used and tested independently.

[0005] 1. It is mainly a mechanism assembled on the whole machine, which can only operate through the linkage of other mechanisms.

[0006] 2. The existing net wrapping mechanism is separated and cannot operate independently and cannot realize its own functions.

[0007] 3. It cannot operate by itself. Even if transmission parts are added, the functions of fully automatic continuous net feeding and net cutting cannot be realized. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a net winding and cutting test bench in view of the deficiencies in the prior art.

[0009] The technical solution of the present invention to solve the above technical problems is as follows: A net winding and cutting test bench comprises: a frame assembly, a net feeding rubber roller, a pair of net clamping steel rollers, a net cutting mechanism, a net pulling belt, an electromagnetic force clutch, a driving mechanism, a spiral net spreading rod, a net pulling active roller, a net pulling passive roller, and a tensioning roller. The net feeding rubber roller, a pair of the net clamping steel rollers, the spiral net spreading rod, the net pulling active roller, the net pulling passive roller and the tensioning roller are all rotatably installed in the frame assembly, the net cutting mechanism and the driving mechanism are both installed on the frame assembly, the net feeding rubber roller is located between the pair of the net clamping steel rollers, the net cutting mechanism is connected to the net feeding rubber roller in transmission, the net pulling active roller is connected to the tensioning roller through the net pulling belt, the net pulling passive roller is in contact with the net pulling belt, the driving mechanism is connected to one end of the net pulling active roller in transmission, the electromagnetic force clutch is installed at the other end of the net pulling active roller, and the net feeding rubber roller is connected to the electromagnetic force clutch in transmission.

[0010] The beneficial effects of adopting the technical solution of the present invention are: by designing a functional data test device for round baler net feeding and net cutting, in order to shorten the test cycle of the round baler, the limitation that a large number of baling tests can only be carried out during the crop operation season is completely broken, the workload of the round baler net wrapping mechanism test is increased, the test cost of the round baler net wrapping mechanism is reduced, the test cycle of the round baler product is shortened, and the round baler net wrapping test can be carried out anytime and anywhere.

[0011] Furthermore, the net cutting mechanism includes: a knife hook, a knife drop spring, a knife holder, and a net cutting knife. The knife holder is rotatably installed in the frame assembly, the knife hook and the knife drop spring are both connected to the knife holder, and the net cutting knife is installed on the knife holder.

[0012] The beneficial effect of adopting the above further technical solution is: under the rotation and friction of the cutter gear shaft, the knife hook is separated from the cutter gear shaft, and at the same time, under the action of the knife drop spring, the net cutting knife falls rapidly, cutting the taut net and realizing the net cutting function.

[0013] Furthermore, a mesh cutting knife sensor, a connecting rod and an electric push rod are installed on the frame assembly, the mesh cutting knife sensor is arranged adjacent to the mesh cutting knife, the mesh cutting knife sensor and the electric push rod are both connected to a display, the knife holder is connected to a mesh cutting knife reset rod, the mesh cutting knife reset rod is provided with a long hole, the middle part of the connecting rod is rotatably connected to the frame assembly, and the two ends of the connecting rod are respectively hinged to the long holes of the electric push rod and the mesh cutting knife reset rod.

[0014] The beneficial effect of adopting the above further technical solution is: it is easy to realize the fully automatic operation of the net winding mechanism to independently feed and cut the net. It is easy to realize the operation function of fully automatic continuous feeding and cutting of the net. The electric push rod pushes the reset rod of the net cutting knife to push the net cutting knife to its original position, and the knife hook is hung on the cutter gear shaft

[0015] Furthermore, the net feeding rubber roller is connected with a speed change gear, and a net winding gear and a cutter gear are rotatably mounted on the frame assembly, the speed change gear is meshed with the net winding gear, and the net winding gear is meshed with the cutter gear, and the cutter gear is sleeved on a cutter gear shaft for hanging the knife hook, and the cutter gear shaft is transmission connected to the knife hook through a roller.

[0016] The beneficial effect of adopting the above-mentioned further technical solution is that the net winding gear, the cutter gear and the speed change gear operate synchronously, and the knife hook originally hung on the cutter gear shaft and installed on the shaft surface of the net feeding rubber roller is separated from the cutter gear shaft under the rotation of the cutter gear shaft and the friction force. At the same time, under the action of the knife drop spring, the net cutting knife falls rapidly to cut off the taut net.

[0017] Furthermore, the pair of mesh steel rollers are connected by a tension spring used to make the pair of mesh steel rollers abut against the mesh feeding rubber roller, and the pair of mesh steel rollers are both abutted against the mesh feeding rubber roller; the pair of mesh steel rollers are both connected to a separation lever used to separate the pair of mesh steel rollers from the mesh feeding rubber roller.

[0018] The beneficial effect of adopting the above further technical solution is that the two mesh steel rollers are respectively installed on both sides of the mesh feeding rubber roller, and under the action of the tension spring, they are tightly pressed against the mesh feeding rubber roller, which can form a pressing effect on the unfolded mesh. Press the separation lever downward until the two mesh steel rollers are separated from the mesh feeding rubber roller, then pass the mesh upward from the gap between the first mesh steel roller and the mesh feeding rubber roller, and then pass the mesh downward from the second mesh steel roller and the mesh feeding rubber roller. At this time, pull the separation mesh steel roller upward so that the two mesh steel rollers and the mesh feeding rubber roller clamp the threaded mesh, and finally pull the mesh pressing rod downward so that it presses the mesh roll tightly to prevent the bundled mesh from jumping during the test.

[0019] Furthermore, the driving mechanism is equipped with a main transmission sprocket, a driven sprocket is installed at one end of the net-pulling active roller, the main transmission sprocket is connected to the driven sprocket through a roller chain; the net-feeding rubber roller is connected to a pulley, and the pulley is connected to the electromagnetic force clutch through a belt.

[0020] The beneficial effects of adopting the above further technical solution are: the main transmission sprocket of the DC motor is connected to the driven sprocket at the end of the active roller of the net pulling through the roller chain. The outer belt groove of the electromagnetic clutch is connected to the upper pulley through the belt, and the pulley is coaxially installed with the net feeding rubber roller. It is convenient to realize the transmission connection between the corresponding components. The structure is compact and easy to install and maintain.

[0021] Furthermore, a drive mechanism mounting seat is installed on the frame assembly, the drive mechanism is connected to a drive mechanism mounting plate, the drive mechanism mounting plate is slidably mounted on the drive mechanism mounting seat, the drive mechanism mounting plate and the drive mechanism mounting seat are both provided with elongated holes, the elongated holes on the drive mechanism mounting plate are connected with the elongated holes on the drive mechanism mounting seat by bolts, a first tensioning adjustment bolt is installed on the drive mechanism mounting seat, and the first tensioning adjustment bolt abuts against the drive mechanism mounting plate; adjustable bearing seats are installed at both ends of the tensioning roller, and adjustable bearing seat elongated holes are provided on the frame assembly, and the adjustable bearing seats at both ends of the tensioning roller are slidably mounted in the adjustable bearing seat elongated holes, and a second tensioning adjustment bolt is installed on the frame assembly, and the second tensioning adjustment bolt abuts against the adjustable bearing seat.

[0022] The beneficial effect of adopting the above further technical solution is that the tension of the roller chain is controlled by the two first tension adjustment bolts on the side of the lower end of the DC motor. The adjustment length of the first tension adjustment bolt has a small displacement change on the position of the DC motor, thereby realizing the tension adjustment of the roller chain. The tension roller can adjust the tension of the net-pulling belt by the displacement of the adjustable bearing seats on the left and right sides. The adjustment is controlled by the second tension adjustment bolt, so that the adjustable bearing seat drives the tension roller to slide back and forth in the long strip hole of the adjustable bearing seat welded on the left stand.

[0023] Further, the frame assembly includes: a left side frame weld of the net winding, a right side frame weld of the net winding, a left platform weld, a right platform weld, a reinforcing beam, a front protective cover assembly, an upper protective cover assembly, a left protective cover assembly and a right protective cover assembly. The left platform weld and the right platform weld are vertically arranged, and the two ends of the reinforcing beam are respectively connected to the left platform weld and the right platform weld. The left side frame weld of the net winding is installed on the left platform weld, and the right side frame weld of the net winding is installed on the right platform weld. The upper protective cover assembly is installed on the top of the left side frame weld of the net winding and the right side frame weld of the net winding, the front protective cover assembly is connected to the upper protective cover assembly, the left protective cover assembly is installed on the left platform weld, and the right protective cover assembly is installed on the right platform weld.

[0024] The beneficial effects of adopting the above further technical solution are: the structural design of the frame assembly facilitates stable support of each component, improves the stability and reliability of the net winding and cutting test bench, simplifies the structure and makes the structure compact, and facilitates the installation and maintenance of the frame assembly.

[0025] Furthermore, the driving mechanism is a DC motor, the speed range of the DC motor is 0-3200 rpm, the driving mechanism and the electromagnetic clutch are connected to a display and a power supply; a mesh frame is installed on the frame assembly, and a mesh pressing rod and a mesh pressing pneumatic spring for pressing the mesh roll are rotatably installed on the frame assembly, the mesh pressing rod is located above the mesh frame, and the mesh pressing pneumatic spring is connected to the mesh pressing rod.

[0026] The beneficial effects of adopting the above further technical solution are: it is convenient to realize the fully automatic operation of the net winding mechanism to independently feed and cut the net. It is convenient to realize the operation function of fully automatic continuous net feeding and cutting. The setting of the net rack makes it convenient to place the bundled net in the net rack.

[0027] Furthermore, a net removal brush is installed on the frame assembly, and the net removal brush is arranged adjacent to the net pulling passive roller.

[0028] The beneficial effect of adopting the above further technical solution is that the arrangement of the web-removing brush is used to prevent the web from being entangled on the web-pulling belt and the web-pulling passive roller.

[0029] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 One of the structural schematic diagrams of the web entanglement and web cutting test bench provided in an embodiment of the present invention.

[0031] Figure 2 The second structural schematic diagram of the mesh winding and cutting test bench provided in an embodiment of the present invention.

[0032] Figure 3 This is one of the structural schematic diagrams of the web winding assembly provided in an embodiment of the present invention.

[0033] Figure 4 The second structural schematic diagram of the web winding assembly provided in the embodiment of the present invention.

[0034] Figure 5 The third structural schematic diagram of the net winding assembly provided in the embodiment of the present invention.

[0035] Figure 6 A schematic structural diagram of a rack assembly provided in an embodiment of the present invention.

[0036] Figure 7 The third structural schematic diagram of the mesh winding and cutting test bench provided in the embodiment of the present invention.

[0037] Description of the accompanying figures: 21, rubber roller for feeding net; 22, steel roller for clamping net; 23, knife holder; 24, net cutting knife; 25, net pulling belt; 26, net placing rack; 27, net pressing rod; 28, net pressing pneumatic spring; 29, electromagnetic force clutch; 210, electric push rod; 211, driving mechanism; 212, knife drop spring; 213, main transmission sprocket; 214, driven sprocket; 215, roller chain; 216, belt; 217, pulley; 218, knife hook; 219, net winding gear; 220, cutter gear; 221, spiral net spreading rod; 2 22. Welding of the left side frame of the net winding; 223. Welding of the right side frame of the net winding; 224. The first tensioning adjustment bolt; 225. The second tensioning adjustment bolt; 226. Tension spring; 227. Separation lever; 228. Speed ​​change gear; 229. Reset lever of the net cutting knife; 31. Active roller of the net pulling; 32. Passive roller of the net pulling; 33. Tensioning roller; 34. Net removing brush; 35. Welding of the left stand; 36. Welding of the right stand; 37. Reinforcement beam; 41. Front protective cover assembly; 42. Upper protective cover assembly; 43. Left protective cover assembly; 44. Right protective cover assembly. DETAILED DESCRIPTION

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention but not to limit the scope of the present invention.

[0039] like Figures 1 to 7 As shown, an embodiment of the present invention provides a net winding and cutting test bench, including: a frame assembly, a net feeding rubber roller 21, a pair of net clamping steel rollers 22, a net cutting mechanism, a net pulling belt 25, an electromagnetic force clutch 29, a driving mechanism 211, a spiral net spreading rod 221, a net pulling active roller 31, a net pulling passive roller 32, and a tensioning roller 33, wherein the net feeding rubber roller 21, a pair of the net clamping steel rollers 22, the spiral net spreading rod 221, the net pulling active roller 31, the net pulling passive roller 32, and the tensioning roller 33 are all rotatably mounted in the frame assembly, and the net cutting mechanism and the driving mechanism are The driving mechanisms 211 are all installed on the frame assembly, the net feeding rubber roller 21 is located between a pair of the net clamping steel rollers 22, the net cutting mechanism is connected to the net feeding rubber roller 21 by transmission, the net pulling active roller 31 is connected to the tensioning roller 33 through the net pulling belt 25, the net pulling passive roller 32 is in contact with the net pulling belt 25, the driving mechanism 211 is connected to one end of the net pulling active roller 31 by transmission, the electromagnetic force clutch 29 is installed on the other end of the net pulling active roller 31, and the net feeding rubber roller 21 is connected to the electromagnetic force clutch 29 by transmission.

[0040] The beneficial effects of adopting the technical solution of the present invention are: by designing a functional data test device for round baler net feeding and net cutting, in order to shorten the test cycle of the round baler, the limitation that a large number of baling tests can only be carried out during the crop operation season is completely broken, the workload of the round baler net wrapping mechanism test is increased, the test cost of the round baler net wrapping mechanism is reduced, the test cycle of the round baler product is shortened, and the round baler net wrapping test can be carried out anytime and anywhere.

[0041] The net wrapping and cutting test bench provided in the embodiment of the present invention realizes the fully automated operation of the net wrapping mechanism independently feeding and cutting the net. The present invention is a functional data test device (net wrapping and cutting test bench) for round baler net feeding and cutting. In order to shorten the test cycle of the round baler and completely break the limitation that a large number of baling tests can only be carried out during the crop operation season, the present invention increases the workload of the round baler net wrapping mechanism test, reduces the test cost of the round baler net wrapping mechanism, shortens the test cycle of the round baler product, realizes the round baler net wrapping test anytime and anywhere, and realizes the fully automated continuous net feeding and cutting operation functions.

[0042] A net winding and cutting test bench provided in an embodiment of the present invention can be a net winding and cutting test bench mechanism, which is composed of a net winding assembly, a frame assembly, an electrical equipment assembly and a cover assembly, and mainly includes a net feeding rubber roller, a net clamping steel roller, a knife frame, a net cutting knife, a net pulling belt, a net pulling active roller, a net pulling passive roller, a tensioning roller, a brush (net removal brush), a net bundling, a net pressing rod, a net pressing pneumatic spring, an electromagnetic force clutch, an electric push rod, a DC motor (driving mechanism), a display, and a sensor. (net cutting knife sensor), knife drop spring, transmission main sprocket, driven sprocket, chain (roller chain), belt, pulley, knife hook, net winding gear, speed change gear, cutter gear, net winding left frame welding, net winding right frame welding, left stand welding, right stand welding, strengthening beam, tension adjustment bolt I (first tension adjustment bolt), tension adjustment bolt II (second tension adjustment bolt), front protective cover assembly, upper protective cover assembly, left protective cover assembly, right protective cover assembly.

[0043] like Figures 1 to 7 As shown, further, the net cutting mechanism includes: a knife hook 218, a knife drop spring 212, a knife holder 23, and a net cutting knife 24. The knife holder 23 is rotatably installed in the frame assembly, the knife hook 218 and the knife drop spring 212 are both connected to the knife holder 23, and the net cutting knife 24 is installed on the knife holder 23.

[0044] The beneficial effect of adopting the above further technical solution is: under the rotation and friction of the cutter gear shaft, the knife hook is separated from the cutter gear shaft, and at the same time, under the action of the knife drop spring, the net cutting knife falls rapidly, cutting the taut net and realizing the net cutting function.

[0045] like Figures 1 to 7 As shown, further, a mesh cutting knife sensor, a connecting rod and an electric push rod 210 are installed on the frame assembly, the mesh cutting knife sensor is arranged adjacent to the mesh cutting knife 24, the mesh cutting knife sensor and the electric push rod 210 are connected to a display, the knife holder 23 is connected to a mesh cutting knife reset rod 229, and the mesh cutting knife reset rod 229 is provided with a long hole, the middle part of the connecting rod is rotatably connected to the frame assembly, and the two ends of the connecting rod are respectively hinged to the long holes of the electric push rod 210 and the mesh cutting knife reset rod 229.

[0046] The beneficial effect of adopting the above further technical solution is: it is easy to realize the fully automatic operation of the net winding mechanism to independently feed and cut the net. It is easy to realize the operation function of fully automatic continuous feeding and cutting of the net. The electric push rod pushes the reset rod of the net cutting knife to push the net cutting knife to its original position, and the knife hook is hung on the cutter gear shaft

[0047] like Figures 1 to 7 As shown, further, the net feeding rubber roller 21 is connected with a speed change gear 228, and a net winding gear 219 and a cutter gear 220 are rotatably installed on the frame assembly, the speed change gear 228 is meshed with the net winding gear 219, and the net winding gear 219 is meshed with the cutter gear 220, and the cutter gear 220 is sleeved on the cutter gear shaft for hanging the knife hook 218, and the cutter gear shaft is connected to the knife hook 218 through a roller.

[0048] The beneficial effect of adopting the above-mentioned further technical solution is that the net winding gear, the cutter gear and the speed change gear operate synchronously, and the knife hook originally hung on the cutter gear shaft and installed on the shaft surface of the net feeding rubber roller is separated from the cutter gear shaft under the rotation of the cutter gear shaft and the friction force. At the same time, under the action of the knife drop spring, the net cutting knife falls rapidly to cut off the taut net.

[0049] like Figures 1 to 7 As shown, further, the pair of mesh steel rollers 22 are connected by a tension spring 226 for making the pair of mesh steel rollers 22 abut against the mesh feeding rubber roller 21, and the pair of mesh steel rollers 22 are both abutted against the mesh feeding rubber roller 21; the pair of mesh steel rollers 22 are both connected with a separation lever 227 for separating the pair of mesh steel rollers 22 from the mesh feeding rubber roller 21.

[0050] The beneficial effect of adopting the above further technical solution is that the two mesh steel rollers are respectively installed on both sides of the mesh feeding rubber roller, and under the action of the tension spring, they are tightly pressed against the mesh feeding rubber roller, which can form a pressing effect on the unfolded mesh. Press the separation lever downward until the two mesh steel rollers are separated from the mesh feeding rubber roller, then pass the mesh upward from the gap between the first mesh steel roller and the mesh feeding rubber roller, and then pass the mesh downward from the second mesh steel roller and the mesh feeding rubber roller. At this time, pull the separation mesh steel roller upward so that the two mesh steel rollers and the mesh feeding rubber roller clamp the threaded mesh, and finally pull the mesh pressing rod downward so that it presses the mesh roll tightly to prevent the bundled mesh from jumping during the test.

[0051] like Figures 1 to 7 As shown, further, the driving mechanism 211 is equipped with a main transmission sprocket 213, and a driven sprocket 214 is installed at one end of the net pulling active roller 31, and the main transmission sprocket 213 is connected to the driven sprocket 214 through a roller chain 215; the net feeding rubber roller 21 is connected to a pulley 217, and the pulley 217 is connected to the electromagnetic force clutch 29 through a belt 216.

[0052] The beneficial effects of adopting the above further technical solution are: the main transmission sprocket of the DC motor is connected to the driven sprocket at the end of the active roller of the net pulling through the roller chain. The outer belt groove of the electromagnetic clutch is connected to the upper pulley through the belt, and the pulley is coaxially installed with the net feeding rubber roller. It is convenient to realize the transmission connection between the corresponding components. The structure is compact and easy to install and maintain.

[0053] like Figures 1 to 7 As shown, further, a drive mechanism mounting seat is installed on the frame assembly, the drive mechanism 211 is connected to a drive mechanism mounting plate, the drive mechanism mounting plate is slidably installed on the drive mechanism mounting seat, the drive mechanism mounting plate and the drive mechanism mounting seat are both provided with long holes, the long holes on the drive mechanism mounting plate are connected with the long holes on the drive mechanism mounting seat by bolts, a first tensioning adjustment bolt 224 is installed on the drive mechanism mounting seat, and the first tensioning adjustment bolt 224 abuts against the drive mechanism mounting plate; adjustable bearing seats are installed at both ends of the tensioning roller 33, and adjustable bearing seat long holes are provided on the frame assembly, and the adjustable bearing seats at both ends of the tensioning roller 33 are slidably installed in the adjustable bearing seat long holes, and a second tensioning adjustment bolt 225 is installed on the frame assembly, and the second tensioning adjustment bolt 225 abuts against the adjustable bearing seat.

[0054] The beneficial effect of adopting the above further technical solution is that the tension of the roller chain is controlled by the two first tension adjustment bolts on the side of the lower end of the DC motor. The adjustment length of the first tension adjustment bolt has a small displacement change on the position of the DC motor, thereby realizing the tension adjustment of the roller chain. The tension roller can adjust the tension of the net-pulling belt by the displacement of the adjustable bearing seats on the left and right sides. The adjustment is controlled by the second tension adjustment bolt, so that the adjustable bearing seat drives the tension roller to slide back and forth in the long strip hole of the adjustable bearing seat welded on the left stand.

[0055] like Figures 1 to 7 As shown, further, the frame assembly includes: a left side frame weld 222 of the winding net, a right side frame weld 223 of the winding net, a left stand weld 35, a right stand weld 36, a reinforcing crossbeam 37, a front protective cover assembly 41, an upper protective cover assembly 42, a left protective cover assembly 43 and a right protective cover assembly 44, the left stand weld 35 and the right stand weld 36 are vertically arranged, the two ends of the reinforcing crossbeam 37 are respectively connected to the left stand weld 35 and the right stand weld 36, the winding net is welded to the left side of the frame and the right side of the frame. The net left side frame weld 222 is installed on the left stand weld 35, the net winding right side frame weld 223 is installed on the right stand weld 36, the upper protective cover assembly 42 is installed on the top of the net winding left side frame weld 222 and the net winding right side frame weld 223, the front protective cover assembly 41 is connected to the upper protective cover assembly 42, the left protective cover assembly 43 is installed on the left stand weld 35, and the right protective cover assembly 44 is installed on the right stand weld 36.

[0056] The beneficial effects of adopting the above further technical solution are: the structural design of the frame assembly facilitates stable support of each component, improves the stability and reliability of the net winding and cutting test bench, simplifies the structure and makes the structure compact, and facilitates the installation and maintenance of the frame assembly.

[0057] like Figures 1 to 7 As shown, further, the driving mechanism 211 is a DC motor, and the speed range of the DC motor is 0-3200 rpm. The driving mechanism 211 and the electromagnetic clutch 29 are both connected to a display and a power supply; a mesh frame 26 is installed on the frame assembly, and a mesh pressing rod 27 and a mesh pressing pneumatic spring 28 for pressing the mesh roll are rotatably installed on the frame assembly, and the mesh pressing rod 27 is located above the mesh frame 26, and the mesh pressing pneumatic spring 28 is connected to the mesh pressing rod 27.

[0058] The beneficial effects of adopting the above further technical solution are: it is convenient to realize the fully automatic operation of the net winding mechanism to independently feed and cut the net. It is convenient to realize the operation function of fully automatic continuous net feeding and cutting. The setting of the net rack makes it convenient to place the bundled net in the net rack.

[0059] like Figures 1 to 7 As shown, further, a net removal brush 34 is installed on the frame assembly, and the net removal brush 34 is arranged adjacent to the net pulling passive roller 32.

[0060] The beneficial effect of adopting the above further technical solution is that the arrangement of the web-removing brush is used to prevent the web from being entangled on the web-pulling belt and the web-pulling passive roller.

[0061] like Figures 1 to 7As shown, the DC motor (driving mechanism 211) is fixed to the set position of the left stand welding 35 and is fixed by 4 sets of bolts and nuts. The main transmission sprocket 213 of the DC motor is connected to the driven sprocket 214 at the end of the active mesh roller 31 through the roller chain 215. The tension of the roller chain 215 is controlled by two first tensioning adjustment bolts 224 on the side of the lower end of the DC motor. The adjustment length of the first tensioning adjustment bolt 224 has a small displacement change on the position of the DC motor, thereby realizing the tension adjustment of the roller chain 215. The active mesh-pulling roller 31 is connected to the tensioning roller 33 through the mesh-pulling belt 25, and the passive mesh-pulling roller 32 is arranged on the outside of the mesh-pulling belt 25. Driven by the friction force of the belt (mesh-pulling belt 25), the tensioning roller 33 can adjust the tension of the mesh-pulling belt 25 by the displacement of the adjustable bearing seats on the left and right sides. The adjustment is controlled by the second tensioning adjustment bolt 225, so that the adjustable bearing seat drives the tensioning roller 33 to slide back and forth in the fixed slot (the long strip hole of the adjustable bearing seat) of the left stand weld 35.The other side shaft head of the net-pulling active roller 31 is provided with an electromagnetic clutch (electromagnetic force clutch 29), and the electromagnetic clutch (electromagnetic force clutch 29) is connected to the power supply, and the outer shape of the electromagnetic clutch (electromagnetic force clutch 29) is connected to the upper pulley 217 through a belt 216, and the pulley 217 is coaxially installed with the net-feeding rubber roller 21, and the two net-clamping steel rollers 22 are respectively installed on both sides of the net-feeding rubber roller 21, and under the action of the tension spring 226, they are tightly pressed against the net-feeding rubber roller 21, which can form a compression effect on the unfolded net, and the bundled net is placed in the net rack 26, and the bundled net is rotated and spread out, passing through the upper end spiral net-spreading rod 221, and the separation lever 227 is pressed downward until the two net-clamping steel rollers 22 and the net-feeding rubber roller are separated. The rubber roller 21 is separated, and the net is passed upward from the gap between the first mesh steel roller (one of the pair of mesh steel rollers 22) and the mesh feeding rubber roller 21, and then the net is passed downward from the second mesh steel roller (the other mesh steel roller in the pair of mesh steel rollers 22) and the mesh feeding rubber roller 21. At this time, the mesh steel roller 22 is pulled upward to separate, so that the two mesh steel rollers 22 and the mesh feeding rubber roller 21 clamp the threaded net, and finally the net pressing rod 27 is pulled downward to press the net roll to prevent the bundled net from jumping during the test. The working principle is as follows: After the electrical control equipment and the mechanical equipment are connected normally, start the power supply, and adjust the speed of the DC motor through the display. The speed range is adjustable from 0 to 3200 rpm. The DC motor (driving mechanism 211) drives the active mesh-pulling roller 31 to rotate. When the electromagnetic clutch (electromagnetic force clutch 29) is powered on for 5 seconds through the display control, the electromagnetic clutch (electromagnetic force clutch 29) installed on the other side of the active mesh-pulling roller 31 drives the mesh-feeding rubber roller 21 to rotate. The mesh-feeding rubber roller 21 pulls the spread mesh downward by friction. The mesh on the spiral mesh-spreading rod 221 is pushed to both sides by the thrust of the spiral to spread the mesh. After 5 seconds, the electromagnetic clutch (electromagnetic force clutch 29) is disconnected. The spread mesh is pulled down from above by the action of the active mesh-pulling roller 31 and the mesh-pulling belt 25. At this time, the mesh-feeding rubber roller 21 rotates passively under the friction of the mesh, causing the mesh-winding gear 219 and the cutter gear 221 to rotate. 0, the speed gear 228 operate synchronously, and the knife hook 218 originally hung on the cutter gear shaft and installed on the axial surface of the net feeding rubber roller 21 is separated from the cutter gear shaft under the rotation of the cutter gear shaft and the friction force. At the same time, under the action of the knife drop spring 212, the net cutting knife 24 falls rapidly to cut the taut net. At the same time, the net cutting knife sensor feeds back the signal of the net cutting knife 24 to the display, and the display gives the command signal of the electric push rod 210 to push. The electric push rod 210 pushes the net cutting knife reset rod 229 to push the net cutting knife 24 to the original position, and the knife hook 218 is hung on the cutter gear shaft. When the net cutting knife sensor senses the signal of the net cutting knife 24 again, the electric push rod 210 shrinks and resets.In this way, a working process is completed, and the display records that the net cutting test is completed once. The net pulling active roller 31 and the net pulling belt 25 throw the net below, completing a net winding and net cutting experiment. It is worth mentioning that in order to prevent the net from being entangled on the net pulling belt 25 and the net pulling passive roller 32, a net removing brush device (net removing brush 34) is provided on their outer surfaces, and then all the working cycles above the entire process work.

[0062] 1. The present invention is a net winding and net cutting test bench mechanism (net winding and net cutting test bench), so it can be used to simulate the functional data test of net feeding and net cutting of round balers.

[0063] 2. The present invention breaks the limitation that a large number of tests can only be carried out during the crop operation season, and realizes that the round baler can carry out the net wrapping test anytime and anywhere, thus shortening the test cycle of the round baler product to the greatest extent.

[0064] 3. The present invention increases the workload of the round baler net wrapping mechanism test and reduces the test cost of the round baler net wrapping mechanism.

[0065] 4. The present invention realizes the operation functions of fully automatic continuous net feeding and net cutting.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A net winding and cutting test bench, characterized in that: include: A frame assembly, a net feeding rubber roller (21), a pair of net clamping steel rollers (22), a net cutting mechanism, a net pulling belt (25), an electromagnetic force clutch (29), a driving mechanism (211), a spiral net spreading rod (221), a net pulling active roller (31), a net pulling passive roller (32), and a tensioning roller (33), wherein the net feeding rubber roller (21), the pair of net clamping steel rollers (22), the spiral net spreading rod (221), the net pulling active roller (31), the net pulling passive roller (32), and the tensioning roller (33) are all rotatably mounted in the frame assembly, and the net cutting mechanism and the driving mechanism (211) are both mounted in the frame assembly. On the frame assembly, the net feeding rubber roller (21) is located between a pair of the net clamping steel rollers (22), the net cutting mechanism is connected to the net feeding rubber roller (21) in a transmission manner, the net pulling active roller (31) is connected to the tensioning roller (33) through the net pulling belt (25), the net pulling passive roller (32) is in abutment with the net pulling belt (25), the driving mechanism (211) is connected to one end of the net pulling active roller (31), the electromagnetic force clutch (29) is installed at the other end of the net pulling active roller (31), and the net feeding rubber roller (21) is connected to the electromagnetic force clutch (29) in a transmission manner.

2. A net winding and cutting test bench according to claim 1, characterized in that: The net cutting mechanism comprises: a knife hook (218), a knife drop spring (212), a knife holder (23), and a net cutting knife (24); the knife holder (23) is rotatably mounted in the frame assembly; the knife hook (218) and the knife drop spring (212) are both connected to the knife holder (23); and the net cutting knife (24) is mounted on the knife holder (23).

3. A net winding and cutting test bench according to claim 2, characterized in that: A mesh cutting knife sensor, a connecting rod and an electric push rod (210) are installed on the frame assembly. The mesh cutting knife sensor is arranged adjacent to the mesh cutting knife (24). The mesh cutting knife sensor and the electric push rod (210) are both connected to a display. The knife frame (23) is connected to a mesh cutting knife reset rod (229). The mesh cutting knife reset rod (229) is provided with a long hole. The middle part of the connecting rod is rotatably connected to the frame assembly. The two ends of the connecting rod are respectively hinged to the long holes of the electric push rod (210) and the mesh cutting knife reset rod (229).

4. A net winding and cutting test bench according to claim 2, characterized in that: The web feeding rubber roller (21) is connected with a speed change gear (228); a web winding gear (219) and a cutter gear (220) are rotatably mounted on the frame assembly; the speed change gear (228) is meshed with the web winding gear (219); the web winding gear (219) is meshed with the cutter gear (220); the cutter gear (220) is sleeved on a cutter gear shaft for hanging the cutter hook (218); the cutter gear shaft is transmission-connected to the cutter hook (218) via a roller.

5. The net winding and cutting test bench according to claim 1, characterized in that: The pair of mesh steel rollers (22) are connected via a tension spring (226) for making the pair of mesh steel rollers (22) abut against the mesh feeding rubber roller (21); the pair of mesh steel rollers (22) are both abutted against the mesh feeding rubber roller (21); and the pair of mesh steel rollers (22) are both connected to a separation lever (227) for separating the pair of mesh steel rollers (22) from the mesh feeding rubber roller (21).

6. A net winding and cutting test bench according to claim 1, characterized in that: The driving mechanism (211) is provided with a main transmission sprocket (213); one end of the net-drawing active roller (31) is provided with a driven sprocket (214); the main transmission sprocket (213) is connected to the driven sprocket (214) through a roller chain (215); the net-feeding rubber roller (21) is connected with a belt pulley (217); the belt pulley (217) is connected to the electromagnetic force clutch (29) through a belt (216).

7. The net winding and cutting test bench according to claim 1, characterized in that: A drive mechanism mounting seat is installed on the frame assembly, the drive mechanism (211) is connected to a drive mechanism mounting plate, the drive mechanism mounting plate is slidably installed on the drive mechanism mounting seat, the drive mechanism mounting plate and the drive mechanism mounting seat are both provided with elongated holes, the elongated holes on the drive mechanism mounting plate are connected with the elongated holes on the drive mechanism mounting seat by bolts, a first tensioning adjustment bolt (224) is installed on the drive mechanism mounting seat, and the first tensioning adjustment bolt (224) abuts against the drive mechanism mounting plate; adjustable bearing seats are installed at both ends of the tensioning roller (33), the frame assembly is provided with adjustable bearing seat elongated holes, the adjustable bearing seats at both ends of the tensioning roller (33) are slidably installed in the adjustable bearing seat elongated holes, and a second tensioning adjustment bolt (225) is installed on the frame assembly, and the second tensioning adjustment bolt (225) abuts against the adjustable bearing seat.

8. The net winding and cutting test bench according to claim 1, characterized in that: The frame assembly comprises: a left side frame weld (222) of the winding net, a right side frame weld (223) of the winding net, a left stand weld (35), a right stand weld (36), a reinforcing crossbeam (37), a front protective cover assembly (41), an upper protective cover assembly (42), a left protective cover assembly (43) and a right protective cover assembly (44), wherein the left stand weld (35) and the right stand weld (36) are vertically arranged, and the two ends of the reinforcing crossbeam (37) are respectively connected to the left stand weld (35) and the right stand weld (36), and the left side of the winding net is welded to the left side of the winding net. The frame weld (222) is installed on the left stand weld (35), the right side frame weld (223) of the winding net is installed on the right stand weld (36), the upper protective cover assembly (42) is installed on the top of the left side frame weld (222) of the winding net and the right side frame weld (223) of the winding net, the front protective cover assembly (41) is connected to the upper protective cover assembly (42), the left protective cover assembly (43) is installed on the left stand weld (35), and the right protective cover assembly (44) is installed on the right stand weld (36).

9. The net winding and cutting test bench according to claim 1, characterized in that: The driving mechanism (211) is a direct current motor, the speed range of the direct current motor is 0-3200 rpm, the driving mechanism (211) and the electromagnetic force clutch (29) are both connected to a display and a power supply; a mesh frame (26) is installed on the frame assembly, a mesh pressing rod (27) and a mesh pressing pneumatic spring (28) for pressing a mesh roll are rotatably installed on the frame assembly, the mesh pressing rod (27) is located above the mesh frame (26), and the mesh pressing pneumatic spring (28) is connected to the mesh pressing rod (27).

10. The net winding and cutting test bench according to claim 1, characterized in that: A net removal brush (34) is installed on the frame assembly, and the net removal brush (34) is arranged adjacent to the net pulling passive roller (32).

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