Test bed for knotter of square baler
By designing the square bale bale knotter test bench, the simulated bale is surrounded by a rope using the simulated object assembly and the rope guide assembly, the problem of lack of perfect knotter test equipment in the prior art is solved, and the accurate evaluation and continuous detection of the knotter performance are achieved.
Patent Information
- Application Number
- CN202510145813.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-03-21
AI Technical Summary
The existing technology lacks knotting test equipment with relatively complete simulation effects, which affects the working performance of the baling machine.
A square bale bale knotter test bench was designed, including a machine, rope storage compartment, baling compartment, movable compartment, displacement component, simulated component and rope guide component. The simulated object assembly simulates the bale being surrounded by a tie rope through a triangularly distributed bundle wheel and a rope guide assembly, realizing the knot force detection and working state continuity detection of the knot.
By simulating the process of the grass bale being surrounded by a rope, the knot force detection and working state continuity detection of the knot are realized, which improves the accuracy of evaluating the performance of the knot.
Smart Images
Figure CN119666353A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of knotter test benches, in particular to a knotter test bench for a square straw bale baler. Background Art
[0002] The square bale roller machine is used to tie ropes and knot square bales to achieve continuous bundling and fixation of the bales. The knotter is an important component of the baler and is used to automatically tie knots in the ropes. The performance of the knotter directly affects the working condition of the baler. In order to ensure that the baler has a good working performance, it is necessary to carry out working experiments on the knotter. However, there is a lack of knotter test equipment with a more complete simulation effect. Summary of the invention
[0003] The purpose of the present invention is to solve the following problems existing in the prior art: the performance of the knotter directly affects the working condition of the baler. In order to ensure that the baler has a good working performance, it is necessary to carry out working experiments on the knotter. However, there is a lack of knotter test equipment with a more complete simulation effect.
[0004] In order to solve the problems existing in the prior art, the present invention provides a square straw bale baler knotter test bench, comprising a machine platform, wherein a rope storage bin, a baling bin, and a movable bin are distributed inside the machine platform; A displacement component, which is arranged in the baling bin and the movable bin; The simulating component is driven by the displacement component to move in the horizontal and vertical directions. The simulating component has a first binding wheel, a second binding wheel and a third binding wheel. The first binding wheel and the second binding wheel are horizontally arranged, and the third binding wheel is arranged above the second binding wheel, so that the first binding wheel, the second binding wheel and the third binding wheel are arranged in a right triangle; The guide rope assembly is arranged in the baling bin and is used for transmitting the binding rope to the knotter assembly.
[0005] Preferably, the simulation object assembly also includes a carrier, a support arm is fixed in front of the carrier, the first binding wheel is installed at the bottom of the front end of the support arm, a sliding arm is arranged at the rear of the support arm, and the third binding wheel and the second binding wheel are respectively arranged at the upper and lower parts of the sliding arm.
[0006] Preferably, a linear slide rail is arranged on the surface of the support arm, the slide arm slides linearly with the linear slide rail, a first tension and compression sensor is arranged on the surface of the carrier, and the first tension and compression sensor is connected to the slide arm through a spring.
[0007] Preferably, the second binding wheel is arranged on the surface of the lower corner plate, and the lower corner plate is connected to the lower part of the sliding arm through the second tension and compression sensor.
[0008] Preferably, the third tied wheel is installed on the surface of the upper angle plate, and the upper angle plate is connected to the sliding arm through studs and nuts.
[0009] Preferably, air nozzles are provided on the edges of the first and third binding wheels, and the air nozzles are connected to an external air source.
[0010] Preferably, the displacement assembly includes a vertical slide rail, which extends from the movable bin to the baling bin, the slide seat is slidably connected to the vertical slide rail, the vertical lead screw thread penetrates the slide seat, one end of the vertical lead screw is connected to a vertical motor, a horizontal slide rail is arranged on the surface of the slide seat, the carrier seat is slidably connected to the horizontal slide rail, the horizontal lead screw thread penetrates the carrier seat, and one end of the horizontal lead screw is connected to a horizontal motor.
[0011] Preferably, the guide rope assembly includes a first guide ring, the first guide ring is arranged in a rope storage bin, a resistor, a second guide ring, and a third guide ring are arranged in sequence above the first guide ring, the second guide ring and the resistor and the third guide ring are distributed in a triangular shape, the binding rope passes through the first guide ring, the resistor, the second guide ring, and the third guide ring in sequence, the second guide ring is connected to the third tension and compression sensor through a spring, the third tension and compression sensor is connected to the shaft rod, and the shaft rod is rotatably connected to the machine.
[0012] Preferably, the resistor includes a base frame, a roller and a pressure plate are arranged inside the base frame, a binding rope passes through the roller and the pressure plate, the roller is connected to an encoder, the pressure plate is slidably connected to the base frame through a guide column, a screw rod is threaded through the surface of the base frame, and the screw rod is connected to the pressure plate through a spring.
[0013] Compared with the related art, the square straw bale baler knotter test bench provided by the present invention has the following beneficial effects: The present invention hooks the binding ropes through the first binding wheel, the second binding wheel and the third binding wheel which are distributed in a triangle, so as to simulate the bale being surrounded by the binding ropes. The knotter assembly ties the binding ropes to surround the first binding wheel, the second binding wheel and the third binding wheel. In this process, the knotting force of the knotter is detected, and the working state of the knotter can be continuously detected in conjunction with the rope-removing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the displacement assembly structure of the present invention; Figure 3 It is one of the structural schematic diagrams of the simulant component of the present invention; Figure 4 This is the second schematic diagram of the structure of the simulation component of the present invention; Figure 5 This is one of the structural schematic diagrams of the guide rope assembly of the present invention; Figure 6 This is the second structural schematic diagram of the guide rope assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the resistor of the present invention.
[0015] Numbers in the figure: 1, machine; 11, rope storage bin; 12, baling bin; 13, movable bin; 2, displacement assembly; 21, vertical slide rail; 22, vertical lead screw; 23, vertical motor; 24, slide seat; 25, horizontal slide rail; 26, horizontal lead screw; 27, horizontal motor; 3, analog assembly; 31, carrier; 32, support arm; 33, first bundle wheel; 34, second bundle wheel; 35, third bundle wheel; 36, linear slide rail; 37, slide arm; 38, first tension and compression sensor; 39, second tension and compression sensor; 310, upper angle plate; 311, lower angle plate; 4, resistor; 41, base frame; 42, roller; 43, encoder; 44, pressure plate; 45, guide column; 46, screw; 5, first guide ring; 6, second guide ring; 61, third tension and compression sensor; 62, shaft; 7, third guide ring; 8, air nozzle. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0017] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.
[0018] like Figure 1 As shown, the square straw baler knotter test bench is based on a machine platform 1, and a rope storage bin 11, a baling bin 12, and a movable bin 13 are arranged inside the machine platform 1. The knotter assembly is arranged above the baling bin 12, and the binding rope is placed in the rope storage bin 11. like Figure 2 As shown, the displacement assembly 2 is arranged in the baling bin 12 and the movable bin 13, and the displacement assembly 2 includes a vertical slide rail 21, and the two vertical slide rails 21 extend from the movable bin 13 to the baling bin 12. The slide seat 24 is slidably connected with the vertical slide rail 21 through a slider, and the vertical lead screw 22 is arranged parallel to the vertical slide rail 21, and the vertical lead screw 22 penetrates the movable bin 13 and the baling bin 12 and is rotatably arranged. The vertical lead screw 22 threadably penetrates the slide seat 24, and the output shaft of the vertical motor 23 is connected to one end of the vertical lead screw 22. The surface of the slide seat 24 is symmetrically provided with a horizontal slide rail 25, and the horizontal lead screw 26 is rotatably arranged parallel to the horizontal slide rail 25, and the output shaft of the horizontal motor 27 is connected to one end of the horizontal lead screw 26. like Figure 3 , Figure 4As shown, the simulation component 3 is based on a carrier 31, the carrier 31 is slidably connected to the horizontal slide rail 25 through a slider, the horizontal lead screw 26 threadedly penetrates the carrier 31, the front of the carrier 31 is fixed with a support arm 32, the first binding wheel 33 is installed at the bottom of the front end of the support arm 32, the rear of the support arm 32 is provided with a slide arm 37, the third binding wheel 35 and the second binding wheel 34 are respectively arranged at the upper and lower parts of the slide arm 37, the first binding wheel 33 and the second binding wheel 34 are horizontally distributed, and the third binding wheel 35 is distributed above the second binding wheel 34, so that the first binding wheel 33, the second binding wheel 34, and the third binding wheel 35 are distributed in a right triangle; The vertical motor 23 is programmed to drive the vertical lead screw 22 to rotate, and the vertical lead screw 22 drives the slide 24 to move vertically along the vertical slide rail 21. The horizontal motor 27 is programmed to drive the horizontal lead screw 26 to rotate, and the horizontal lead screw 26 drives the carrier 31 to move horizontally along the horizontal slide rail 25, so as to drive the simulation component 3 to move forward, backward, left and right. When testing the knotter, the analog component 3 moves toward the baling bin 12, so that the second baling wheel 34 and the third baling wheel 35 pass over the binding ropes distributed by the knotter, and then the analog component 3 is driven to move horizontally, so that the second baling wheel 34 and the third baling wheel 35 are aligned with the binding ropes, and then the analog component 3 is driven to move toward the movable bin 13, so that the third baling wheel 35 and the second baling wheel 34 hook the binding ropes backwards, simulating that the grass bale is surrounded by the binding ropes in advance, and then the knotter collects the ropes and ties the knots, and the knotted parts form a rectangular distribution with the first baling wheel 33, the second baling wheel 34, and the third baling wheel 35, thereby simulating the knotting and fixing of the square grass bale; like Figure 3 , Figure 4 As shown, air nozzles 8 are provided at the edges of the first and third tying wheels 33, 35, and the air nozzles 8 are connected to an external air source. When knotting is completed, the knotter assembly cuts off the knotted rope bundle, and the rope bundle is suspended by the first, second and third tying wheels 33, 34 and 35. Then, the external air source is turned on to supply air, and the gas is sprayed through the air nozzles 8 to the rope bundle on the surface of the third and first tying wheels 35 and 33, so that the rope bundle falls off, which facilitates the simulation component 3 to continuously implement the simulated tying work.
[0019] like Figure 3 , Figure 4 As shown, a linear slide rail 36 is arranged on the surface of the support arm 32, and the slide arm 37 slides linearly with the linear slide rail 36. A first tension and compression sensor 38 is arranged on the surface of the carrier 31, and the first tension and compression sensor 38 is connected to the slide arm 37 through a spring. The second binding wheel 34 is arranged on the surface of the lower corner plate 311, and the lower corner plate 311 is connected to the lower part of the slide arm 37 through the second tension and compression sensor 39. The second and third binding wheels 34, 35 move as one with the slide arm 37. When the third and second binding wheels 35, 34 pull back to hook and hang the binding rope, the slide arm 37 is subjected to the reaction tension of the binding rope. The tension strength of the binding rope when surrounding the bale is detected by the first tension and compression sensor 38. During the knotting process, the binding rope is tightened, and the binding force of the binding rope acts on the surface of the first, second and third binding wheels 33, 34 and 35. The binding force applied to the second binding wheel 34 is detected by the second tension and compression sensor 39.
[0020] The third binding wheel 35 is installed on the surface of the upper angle plate 310, and the upper angle plate 310 is connected to the sliding arm 37 through studs and nuts. The distribution position of the third binding wheel 35 is adjusted by adjusting the connection position of the studs and the sliding arm 37.
[0021] like Figure 1 , Figure 5 , Figure 6 As shown, the guide rope assembly is arranged in the baling bin 12, and is used to conduct the binding rope to the knotter assembly. The guide rope assembly includes a first guide ring 5, which is arranged in the rope storage bin 11. A resistor 4, a second guide ring 6, and a third guide ring 7 are arranged above the first guide ring 5 in sequence. The second guide ring 6 and the resistor 4 and the third guide ring 7 are distributed in a triangular shape. The second guide ring 6 is connected to a third tension and compression sensor 61 through a spring. The third tension and compression sensor 61 is connected to a shaft rod 62, and the shaft rod 62 is rotatably connected to the machine platform 1. The binding rope in the rope storage bin 11 passes through the first guide ring 5, the resistor 4, the second guide ring 6, the third guide ring 7 in sequence and is connected to the knotter assembly. When the knotter transmits the binding rope, due to the triangular distribution between the second guide ring 6 and the resistor 4 and the third guide ring 7, the binding rope will generate tension on the second guide ring 6. The magnitude of the tension is detected by the third tension and compression sensor 61, which is used to feedback the strength of the knotter transmitting the binding rope.
[0022] like Figure 7 As shown, the resistor 4 includes a base frame 41, a roller 42 and a pressure plate 44 are arranged in the base frame 41, the roller 42 is connected to an encoder 43, the pressure plate 44 is slidably connected to the base frame 41 through a guide column 45, a screw 46 is threaded through the surface of the base frame 41, and the screw 46 is connected to the pressure plate 44 through a spring; The binding rope passes through the roller 42 and the pressure plate 44. The screw 46 is rotated to squeeze the pressure plate 44 through the spring, so that the pressure plate 44 and the roller 42 clamp the binding rope, so that the transmission of the binding rope has a certain friction force, simulating the friction resistance of the rope between the straw bales. During the transmission of the binding rope, the roller 42 is driven to rotate, and the encoder 43 detects the rotation speed and number of turns of the roller 42, and feeds back the speed of the knotter assembly transmitting the binding rope.
Claims
1. Square bale baler knotter test bench, characterized by: include: A machine (1), wherein a rope storage bin (11), a baling bin (12), and a movable bin (13) are arranged inside the machine (1); A displacement component (2), the displacement component (2) being arranged in the baling bin (12) and the movable bin (13); A simulation component (3), the simulation component (3) is driven by the displacement component (2) to move in the horizontal and vertical directions, the simulation component (3) comprises a first binding wheel (33), a second binding wheel (34), and a third binding wheel (35), the first binding wheel (33) and the second binding wheel (34) are horizontally distributed, and the third binding wheel (35) is distributed above the second binding wheel (34), so that the first binding wheel (33), the second binding wheel (34), and the third binding wheel (35) are distributed in a right triangle; A guide rope assembly is arranged in the baling bin (12) and is used to conduct the binding rope to the knotter assembly.
2. The square straw baler knotter test stand according to claim 1, characterized in that: The simulation component (3) further comprises a carrier (31), a support arm (32) being fixed at the front of the carrier (31), a first binding wheel (33) being mounted at the bottom of the front end of the support arm (32), a sliding arm (37) being arranged at the rear of the support arm (32), and a third binding wheel (35) and a second binding wheel (34) being arranged at the upper and lower parts of the sliding arm (37), respectively.
3. The square straw baler knotter test stand according to claim 2, characterized in that: A linear slide rail (36) is arranged on the surface of the support arm (32), the slide arm (37) slides linearly with the linear slide rail (36), a first tension and compression sensor (38) is arranged on the surface of the carrier (31), and the first tension and compression sensor (38) is connected to the slide arm (37) via a spring.
4. The square straw baler knotter test stand according to claim 3, characterized in that: The second binding wheel (34) is arranged on the surface of the lower corner plate (311), and the lower corner plate (311) is connected to the lower part of the sliding arm (37) via a second tension and compression sensor (39).
5. The square straw baler knotter test stand according to claim 3, characterized in that: The third binding wheel (35) is mounted on the surface of the upper angle plate (310), and the upper angle plate (310) is connected to the sliding arm (37) via studs and nuts.
6. The square straw baler knotter test stand according to claim 1, characterized in that: Air nozzles (8) are provided on the edges of the first binding wheel (33) and the third binding wheel (35), and the air nozzles (8) are connected to an external air source.
7. The square straw baler knotter test stand according to claim 2, characterized in that: The displacement assembly (2) comprises a vertical slide rail (21), the vertical slide rail (21) extends from the movable bin (13) to the baling bin (12), the slide seat (24) is slidably connected to the vertical slide rail (21), the vertical lead screw (22) is threadedly penetrated through the slide seat (24), one end of the vertical lead screw (22) is connected to a vertical motor (23), a horizontal slide rail (25) is arranged on the surface of the slide seat (24), the carrier seat (31) is slidably connected to the horizontal slide rail (25), the horizontal lead screw (26) is threadedly penetrated through the carrier seat (31), and one end of the horizontal lead screw (26) is connected to a horizontal motor (27).
8. The square straw baler knotter test stand according to claim 1, characterized in that: The guide rope assembly comprises a first guide ring (5), the first guide ring (5) is arranged in a rope storage bin (11), a resistor (4), a second guide ring (6), and a third guide ring (7) are arranged in sequence above the first guide ring (5), the second guide ring (6) and the resistor (4) and the third guide ring (7) are arranged in a triangular distribution, the binding rope passes through the first guide ring (5), the resistor (4), the second guide ring (6), and the third guide ring (7) in sequence, the second guide ring (6) is connected to a third tension and compression sensor (61) via a spring, the third tension and compression sensor (61) is connected to a shaft rod (62), and the shaft rod (62) is rotatably connected to the machine platform (1).
9. The square straw baler knotter test stand according to claim 8, characterized in that: The resistor (4) comprises a base frame (41), a roller (42) and a pressure plate (44) are arranged in the base frame (41), a binding rope passes through the roller (42) and the pressure plate (44), the roller (42) is connected to an encoder (43), the pressure plate (44) is slidably connected to the base frame (41) through a guide column (45), a screw rod (46) is threadedly passed through the surface of the base frame (41), and the screw rod (46) is connected to the pressure plate (44) through a spring.