Device for adjusting gap between movable cutter and fixed cutter of forage grass filament rubbing machine and filament rubbing machine

Abstract

The utility model discloses a gap adjusting device for a movable cutter and a fixed cutter of a forage grass filament rubbing machine and the filament rubbing machine, belongs to the technical field of agricultural machinery, and solves the problems of large error, inaccurate adjustment and incapability of indicating a relative value of the gap between the movable cutter and the fixed cutter in manual adjustment of the gap between the movable cutter and the fixed cutter in the prior art. The device comprises a fixed cutter assembly and two gap adjusting mechanisms, each gap adjusting mechanism comprises a fixed cutter adjusting swing arm, a gap adjusting driver and a position adjusting displayer, one end of each fixed cutter adjusting swing arm is connected with a cutter adjusting lead screw, the upper end of each cutter adjusting lead screw is connected with the corresponding gap adjusting driver, and an adjusting driving rod is arranged on each gap adjusting driver. The gap adjusting driver is connected with the position adjusting display; the other ends of the two fixed knife adjusting swing arms are connected with the two sides of the fixed knife rest respectively, and connecting holes are formed in the end faces of the other ends of the fixed knife adjusting swing arms. The utility model solves the problems of large error, inaccurate adjustment and incapability of indicating the relative value of the gap between the movable cutter and the fixed cutter in the manual adjustment of the gap between the movable cutter and the fixed cutter in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and in particular relates to a forage grass shredding motor-driven fixed blade gap adjustment device and a shredding machine. Background Art

[0002] With the development of my country's animal husbandry industry, users have more and more stringent requirements on forage, and compare them with imported machines in terms of function, reliability, efficiency, etc. This forces the forage kneading machine to consider reducing the operator's labor intensity and improving the machine's working efficiency in addition to improving the reliability of key components and the quality of the whole machine during the design and development process.

[0003] The moving and fixed knives of common forage shredders are easily worn out during repeated cutting, causing the gap between the fixed and moving knives to change. The gap between the two directly affects the quality of crop shredding. If the gap is too large, forage can easily be retained in the gap, resulting in increased friction on the crop, and the moving knife is prone to slipping, causing the crop to be pulled apart instead of cut, resulting in uneven cross-sections and increased shredding length, which affects the palatability of cattle and sheep; if the gap is too small, the installation is difficult, the knife is easy to break, affecting normal operation, and even causing safety problems.

[0004] Therefore, during the forage operation, the gap between the moving and fixed knives needs to be adjusted according to the wear of the moving and fixed knives. In the prior art, the moving and fixed knife gap adjustment device of the forage shredder has a complex structure, a complex manufacturing process and a high cost. In addition, the manual adjustment of the moving and fixed knife gap has a large error and is inaccurate, and cannot indicate the relative value of the moving and fixed knife gap, resulting in an unsatisfactory cutting effect when the whole machine is working. Utility Model Content

[0005] The utility model aims to provide a forage shredding motorized fixed blade gap adjustment device and a shredding machine, so as to solve the problems in the prior art of manual adjustment of the movable and fixed blade gaps, such as large errors, inaccurate adjustment and inability to indicate the relative values ​​of the movable and fixed blade gaps.

[0006] The technical scheme of the utility model is: a forage shredder motor fixed knife gap adjustment device and a shredder, comprising a fixed knife assembly and two gap adjustment mechanisms, the fixed knife assembly comprising a fixed knife, a fixed knife frame and a fixed knife rotary swing shaft, the fixed knife is arranged on the fixed knife frame, the fixed knife rotary swing shaft is arranged below the fixed knife frame, and a movable bolt is connected to the fixed knife rotary swing shaft below; the gap adjustment mechanism comprises a fixed knife adjustment swing arm, a gap adjustment driver and a position adjustment display, one end of the fixed knife adjustment swing arm is connected with a knife adjustment screw, the upper end of the knife adjustment screw is connected to the gap adjustment driver, an adjustment drive rod is provided on the gap adjustment driver, and the gap adjustment driver is connected to the position adjustment display; the other end heads of the two fixed knife adjustment swing arms are respectively connected to the two sides of the fixed knife frame, and a connecting hole is opened on the other end surface of the fixed knife adjustment swing arm.

[0007] As a further improvement of the utility model, one end of the fixed knife adjustment swing arm is connected to two adjustment ear plates through a threaded connecting pin, the knife adjusting screw passes through the threaded connecting pin and is arranged between the two adjustment ear plates, and an intersecting line base is provided at the lower end of the knife adjusting screw, and the intersecting line base is composed of two pairs of half-moon shaped metal blocks.

[0008] As a further improvement of the utility model, an eccentric butterfly spring is provided on the inner periphery of the connecting hole on the fixed knife adjusting swing arm.

[0009] As a further improvement of the utility model, one end of the fixed knife adjustment swing arm is connected to the gap adjustment driver through the adjustment mounting plate, a positioning stretch spring is provided on one side of the adjustment mounting plate, and the other end of the positioning stretch spring is arranged between the two adjustment ear plates.

[0010] A forage shredder comprises the forage shredder motorized fixed blade gap adjustment device described above.

[0011] The beneficial effects of the utility model are as follows: two gap adjustment mechanisms are rotatably connected to both sides of the frame by arranging a fixed shaft in the connecting hole, the gap adjustment driver is driven by adjusting the driving rod, and during the adjustment process, the numerical values ​​of the two position adjustment displays display the fixed knife adjustment values, thereby ensuring the synchronization and consistency of the gap adjustment amounts of the moving and fixed knives; the gap adjustment driver drives the knife adjusting screw to move up and down, so that one end of the fixed knife adjustment swing arm moves along the length direction of the knife adjusting screw respectively, and then synchronously drives the fixed shafts of the two fixed knife adjustment swing arms on the frame to rotate, thereby adjusting the gap between the fixed knife and the moving knife assembly.

[0012] By using the gap adjustment driver as the driving force source for the rotation of the knife adjusting screw, compared with manual experience adjustment, the feed amount of the fixed knife adjustment swing arm is more refined, ensuring the accuracy of the gap adjustment of the moving and fixed knives, and greatly improving the adjustment of the fixed knife assembly in the length direction, ensuring that the adjustment amount at both ends of the fixed knife assembly in the length direction remains equal, thereby ensuring that the cutting effect of the whole machine is relatively ideal. Two gap adjustment mechanisms are set up for synchronous adjustment, and the gap between the moving and fixed knives can be quickly adjusted. Its structure is relatively simple, the manufacturing process is relatively simple, and the cost is low. It can effectively solve the problems of large errors and inaccurate adjustment of the gap between the moving and fixed knives in the prior art, and the relative value of the gap between the moving and fixed knives cannot be indicated. In addition, the existing moving and fixed knife adjustment device has a complex structure, a complex manufacturing process, and a high cost.

[0013] The eccentric butterfly spring has high stiffness, strong buffering and vibration absorption ability, and can withstand large loads with small deformation. It can ensure the stability of the fixed knife adjustment swing arm when it rotates around the fixed axis on the frame, effectively ensuring stable operation of the work, improving economy and safety, and increasing the service life of components; the positioning tension spring can limit and position the knife adjustment screw and the gap adjustment driver, has the ability to absorb and store mechanical energy, and at the same time plays a balancing role, making the working movement smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall installation front view of the utility model;

[0015] Figure 2 This is a top view of the installation of the utility model;

[0016] Figure 3 This is a schematic diagram of the connection between the fixed knife and the gap adjustment device in the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the gap adjustment device in the utility model.

[0018] In the figure: 1-fixed knife assembly; 11-fixed knife; 12-fixed knife holder; 13-fixed knife rotary swing shaft; 14-jointed bolt; 15-locking bolt; 2-gap adjustment mechanism; 201-fixed knife adjustment swing arm; 202-threaded connecting pin; 203-knife adjusting screw; 204-intersecting linear base; 205-positioning stretch spring; 206-gap adjustment driver; 207-position adjustment display; 208-eccentric butterfly spring; 209-adjusting ear plate; 210-locking sleeve; 211-adjusting nut; 212-mounting plate; 213-adjusting drive rod; 214-thrust ball bearing; 215-butterfly spring; 216-slotted nut; 217-limiting pin; 218-limiting nut; 219-adjusting mounting plate; 220-connecting hole; 3-fixed shaft; 4-connecting pin shaft; 5-moving knife assembly; 6-cutter frame of shredder. DETAILED DESCRIPTION

[0019] The following describes the original principles and features of the present invention in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] This embodiment provides a forage shredder motorized fixed blade gap adjustment device, Figure 1-Figure 4 The forage shredder motor fixed blade gap adjustment device comprises a fixed blade assembly 1 and two gap adjustment mechanisms 2, wherein the fixed blade assembly 1 mainly comprises a fixed blade 11, a fixed blade holder 12, and a fixed blade rotating and swinging shaft 13, the fixed blade 11 is arranged on the fixed blade holder 12, the fixed blade rotating and swinging shaft 13 is arranged below the fixed blade holder 12, and a movable bolt 4 is connected to the fixed blade rotating and swinging shaft 13 for rotation; the fixed blade assembly 1 is installed on the frame 6 of the shredder chopper through the movable bolt 14, and can swing around the fixed blade rotating and swinging shaft 13.

[0021] The gap adjustment mechanism 2 is symmetrically arranged on both sides of the shredder frame 6, and the gap adjustment mechanism 2 includes a fixed knife adjustment swing arm 201, a threaded connecting pin 202, a knife adjustment screw 203, an intersecting line base 204, a gap adjustment driver 206 and a position adjustment display 207; the fixed knife adjustment swing arm 201 is L-shaped, and the vertical part and the straight part of the fixed knife adjustment swing arm 201 are arranged at a certain obtuse angle to better adapt to the position of the shredder frame 6 of the shredder, one end of the fixed knife frame 12 in the length direction is fixedly connected to the inclined surface of the vertical part of the left end of one of the fixed knife adjustment swing arms 201 by a locking bolt 15, and the other end of the fixed knife frame 12 in the length direction is fixedly connected to the inclined surface of the vertical part of the left end of the other fixed knife adjustment swing arm 201 by a locking bolt 15.

[0022] In the gap adjustment mechanism 2: the vertical part of the left end of the fixed knife adjustment swing arm 201 is rotatably connected to the fixed shaft 3 on the shredder chopper frame 6 through the connecting hole 220, and the end of the fixed shaft 3 is in the eccentric butterfly spring 208 on the inner periphery of the connecting hole 220; the two side surfaces of the right end of the fixed knife adjustment swing arm 201 are respectively connected to the adjustment ear plates 209, and the middle of the two adjustment ear plates 209 is connected by a threaded connecting pin 202, and the knife adjustment screw 203 passes through the threaded connecting pin 202. 2 is connected with the adjusting ear plate 209 and the fixed knife adjusting swing arm 201 to drive the right end of the fixed knife adjusting swing arm 201 to move along the length direction of the knife adjusting screw 203, thereby driving the fixed knife adjusting swing arm 201 to rotate around the fixed shaft 3 on the frame 6 of the shredder chopper; the upper end of the knife adjusting screw 203 is connected with the threaded connecting pin 202 through the locking sleeve 210 for locking and limiting, the lower end of the knife adjusting screw 203 passes through the intersecting line base 204, and the bottom end of the knife adjusting screw 203 is positioned by setting an adjusting nut 211.

[0023] The two gap adjustment mechanisms 2 are respectively provided with their own gap adjustment drivers 206, and in each gap adjustment mechanism 2: the gap adjustment drivers 206 are connected to the upper end of the knife adjustment screw 203, and the installation direction of each gap adjustment driver 206 is exactly opposite, so as to facilitate operation by personnel; the position adjustment display 207 is fixed on the gap adjustment driver 206 through the mounting plate 212, and when the adjustment drive rod 213 adjusts the gap adjustment driver 206, the value will be displayed in real time on the position adjustment display 207, and the adjustment drive rod 213 and the position adjustment display 207 can also be connected by electrical signals to enhance the purpose of automated work, thereby further improving work efficiency and accuracy.

[0024] The bottom end of the knife adjusting screw 203 is provided with an adjusting nut 211, a thrust ball bearing 214, an intersecting linear base 204, a thrust ball bearing 214, a butterfly spring 215, a slotted nut 216 and a limit pin 217 in sequence from bottom to top; the intersecting linear base 204 is composed of two pairs of semi-lunar metal blocks, and the metal blocks are light holes, so that the adjusting screw 203 can rotate and float up and down at the intersecting linear base 204; the intersecting linear base 204 is connected to the connecting pin 4 on the shredder cutter frame 6, and the two pairs of semi-lunar metal blocks can rotate around the connecting pin 4, so as to protect the gap adjustment mechanism 2 to a certain extent, increase the reliability of the adjustment, and realize the fine adjustment of the gap between the moving and fixed knives.

[0025] When in use, the fixed knife assembly 1 is fixed to the shredded vegetable machine or other mechanical equipment that needs to adjust the fixed knife by means of the movable bolt 4. The two gap adjustment drivers 206 are driven by adjusting the two adjustment drive rods 213. The two gap adjustment drivers 206 drive the knife adjusting screw 203 to move up and down, so that the right ends of the two fixed knife adjustment swing arms 201 move along the length direction of their respective knife adjusting screws 203, thereby driving the two fixed knife adjustment swing arms 201 and the fixed shafts 3 on the corresponding shredded vegetable machine cutter frames 6 to rotate; by adjusting the adjustment drive rod 213, the changes in the values ​​displayed on the two position adjustment displays 207 are driven, and the values ​​of the two position adjustment displays 207 indicate the synchronization of the fixed knife adjustment.

[0026] This is used as the driving force source for the rotation of the blade adjusting screw 203. Compared with manual experience adjustment, the adjustment of the two ends of the fixed blade assembly 1 in the length direction can be greatly improved, ensuring that the adjustment amount of the two ends of the fixed blade assembly 1 in the length direction remains equal, thereby ensuring that the cutting effect of the whole machine is relatively ideal. At the same time, two gap adjustment mechanisms 2 are set up to quickly adjust the gap between the moving and fixed blades. Its structure is relatively simple, the manufacturing process is relatively simple, and the cost is low. It can effectively solve the problems of complex structure, complex manufacturing process and high cost of the moving and fixed blade adjustment device in the prior art.

[0027] On the basis of this optional embodiment, the specific connection structure of the further optional fixed knife adjustment swing arm 201 rotatably connected to the fixed shaft 3 on the shredder cutter frame 6 has many forms, for example but not limited to, in each gap adjustment mechanism 2, the fixed knife adjustment swing arm 201 is mounted on the fixed shaft 3 through the connecting hole 220 to realize rotation.

[0028] In the optional implementation of the present embodiment, in each gap adjustment mechanism 2: after the upper end of the blade adjusting screw 203 passes through the threaded connecting pin 202, the locking sleeve 210 is set and positioned with the limiting nut 218, and the limiting nut 218 is away from the side of the gap adjustment driver 206, so that the locking sleeve 210 maintains tightness and avoids over-tightening or loosening, thereby increasing the damping effect and effectively absorbing vibration and impact. By hanging one end of the positioning stretch spring 205 on one side of the adjustment mounting plate 219 of the gap adjustment driver 206, and the other end of the positioning stretch spring 205 is hung between the ends of the two adjustment ear plates 209, the blade adjusting screw 203 and the gap adjustment driver 206 can be limited and positioned. The positioning stretch spring 205 has the ability to absorb and store mechanical energy, and can also play a balancing role, making the working movement more stable.

[0029] The present embodiment also provides a shredder, which includes the forage shredder movable fixed knife gap adjustment device in the above-mentioned embodiment. The shredder provided by the present embodiment can quickly adjust the gap between the fixed knife assembly 1 and the movable knife assembly 5, and has a relatively simple structure, a relatively simple manufacturing process and a low cost.

[0030] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A forage grass kneading motorized fixed blade gap adjustment device, characterized in that: The invention comprises a fixed knife assembly (1) and two gap adjustment mechanisms (2), wherein the fixed knife assembly (1) comprises a fixed knife (11), a fixed knife frame (12) and a fixed knife rotary swing shaft (13), wherein the fixed knife (11) is arranged on the fixed knife frame (12), the fixed knife rotary swing shaft (13) is arranged below the fixed knife frame (12), and a movable bolt (4) is rotatably connected below the fixed knife rotary swing shaft (13); the gap adjustment mechanism (2) comprises a fixed knife adjustment swing arm (201), a gap adjustment driver (206) and a position adjustment display ( 207), one end of the fixed knife adjustment swing arm (201) is connected to a knife adjustment screw (203), the upper end of the knife adjustment screw (203) is connected to a gap adjustment driver (206), the gap adjustment driver (206) is provided with an adjustment drive rod (213), and the gap adjustment driver (206) is connected to a position adjustment display (207); the other ends of the two fixed knife adjustment swing arms (201) are respectively connected to two sides of the fixed knife frame (12), and a connecting hole (220) is opened on the end surface of the other end of the fixed knife adjustment swing arm (201).

2. The forage grass kneading motorized fixed blade gap adjustment device according to claim 1, characterized in that: One end of the fixed knife adjustment swing arm (201) is connected to two adjustment ear plates (209) via a threaded connection pin (202); a knife adjustment screw (203) passes through the threaded connection pin (202) and is arranged between the two adjustment ear plates (209); an intersecting line base (204) is arranged at the lower end of the knife adjustment screw (203); and the intersecting line base (204) is composed of two pairs of half-moon-shaped metal blocks.

3. A forage grass shredding motorized fixed blade gap adjustment device according to claim 1 or 2, characterized in that: An eccentric butterfly spring (208) is provided on the inner periphery of the connection hole (220) on the fixed knife adjustment swing arm (201).

4. The device for adjusting the gap between the motorized fixed blades of forage kneading according to claim 3, characterized in that: One end of the fixed knife adjustment swing arm (201) is connected to the gap adjustment driver (206) via an adjustment mounting plate (219); a positioning stretch spring (205) is provided on one side of the adjustment mounting plate (219); and the other end of the positioning stretch spring (205) is provided between two adjustment ear plates (209).

5. A silk kneading machine, characterized in that: The shredder comprises the forage shredder motor-driven fixed blade gap adjustment device according to any one of claims 1 to 4.

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