Grass chopper

Abstract

The utility model discloses a grass chopper, and relates to the technical field of agricultural equipment.The grass chopper comprises a material barrel, a base, a driving part and a blade mechanism, the blade mechanism comprises a mounting sleeve, a spacer bush, a locking part and at least two blades, and when the blades need to be mounted, the mounting sleeve is mounted on an output shaft of the driving part firstly, and then the spacer bush is mounted on the output shaft of the driving part; then, the blades slide downwards along the guide limiting grooves through the guide parts, guide installation of the blades can be achieved through cooperation of the guide parts and the guide limiting grooves, circumferential rotation of the blades relative to the installation sleeve can be limited, and every two adjacent blades are spaced by a certain distance in the axial direction through the spacer bushes so that materials can be fully crushed; according to the blade, the distance between the blades can be changed by replacing the spacer bushes with different lengths or numbers so as to meet different working requirements, a traditional screw connection mode is omitted, a locking piece pressing and limiting mode is adopted, the structure is more flexible, and the installed blade is more stable and convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural equipment technical field especially is related to a grass chopper. BACKGROUND

[0002] When feeding livestock and poultry, food or forage needs to be chopped, the traditional manual chopping method is inefficient and inconvenient, although some mechanical devices such as vegetable chopping devices have appeared, but the blade installation method of such devices adopts screw connection, the blade is prone to looseness and damage, and there is the problem of inconvenient installation. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a kind of grass chopper to solve the problem of unstable blade connection and inconvenient installation in prior art.

[0004] The utility model provides a kind of grass chopper, including material cylinder, base, driving part and blade mechanism;Material cylinder is set on base;Driving part is set on base, and the output shaft of driving part is located in material cylinder;

[0005] The blade mechanism includes mounting sleeve, spacer sleeve, locking part and at least two blades;Mounting sleeve is set on the output shaft of driving part;Mounting sleeve is provided with shaft shoulder surface;Mounting sleeve is provided with guide limiting groove along its axial direction;The blade at the lowermost end is attached to the shaft shoulder surface along the axial direction of output shaft;Blade is sleeved on mounting sleeve, and the guide portion of blade is slidably connected with guide limiting groove;Spacer sleeve is sleeved on mounting sleeve, and at least one spacer sleeve is arranged between adjacent two blades;Locking part is connected with mounting sleeve, and the position of spacer sleeve and blade in axial direction is limited by locking part and shaft shoulder surface.

[0006] The utility model has the beneficial effects that:

[0007] The grass chopper of the utility model includes material cylinder, base, driving part and blade mechanism, forage and other materials can be placed in material cylinder, and the material in material cylinder is cut and crushed by driving blade mechanism, the blade mechanism of the utility model includes mounting sleeve, spacer sleeve, locking part and at least two blades, when blade needs to be installed, mounting sleeve is first installed on the output shaft of driving part, then blade is slid downward along guide limiting groove by guide portion, the cooperation of guide portion and guide limiting groove can realize the guided installation of blade, and can limit the circumferential rotation of blade relative to mounting sleeve, spacer sleeve separates two adjacent blades by a certain distance in axial direction, so as to fully crush materials, the distance between blades can be changed by replacing spacer sleeve with different length or quantity to adapt to different working requirements, the blade of the utility model cancels the traditional screw connection mode, and adopts locking part pressing limiting mode, so that the structure is more flexible, the blade after installation is more stable and convenient to install. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical means, creative features, purposes and effects realized by the embodiments of the present application or the prior art, the drawings required in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0009] Figure 1 is a structural diagram of the grass chopper of the present application (hidden lines are shown);

[0010] Figure 2 is an axonometric view of the grass chopper of the present application;

[0011] Figure 3 is an exploded view of the grass chopper of the present application (hidden lines are shown for the material cylinder);

[0012] Figure 4 is an exploded view of the driving member and the blade mechanism in the present application;

[0013] Figure 5 is a vertical sectional view of the driving member and the blade mechanism in the present application (only a part is shown);

[0014] The explanation of the reference signs is as follows:

[0015] 100, material cylinder; 110, cylinder body; 120, cover body; 130, first discharging opening; 140, buckle;

[0016] 200, base; 210, second discharging opening; 220, material blocking plugboard; 221, sliding groove; 230, material guiding mechanism; 231, first U-shaped material plate; 232, second U-shaped material plate;

[0017] 300, driving member; 310, output shaft;

[0018] 400, blade mechanism; 410, mounting sleeve; 411, shaft shoulder surface; 412, guiding limiting groove; 420, spacer sleeve; 430, locking member; 440, blade; 441, guiding portion; 450, bolt. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application will be further described in combination with specific drawings.

[0020] For example, Figure 1As shown, the embodiment discloses a grass crusher, which is used for cutting and crushing materials such as food materials or forage. The grass crusher of the embodiment comprises a material cylinder 100, a base 200, a driving member 300 and a blade mechanism 400; the material cylinder 100 is used for placing materials, the base 200 is used for supporting the material cylinder 100, and the driving member 300 is used for driving the blade mechanism 400 in the material cylinder 100 to rotate, so as to cut and crush the materials.

[0021] As shown, Figure 2 The material cylinder 100 is arranged on the base 200. In the embodiment, the material cylinder 100 comprises a cylinder body 110 and a cover body 120. The cylinder body 110 is arranged on the base 200. In some preferred embodiments, the cylinder body 110 is detachably arranged on the base 200. The cylinder body 110 and the base 200 can be detachably connected by a threaded member (for example, a bolt), or the cylinder body 110 and the base 200 are detachably connected by a buckle 140. The shape of the cylinder body 110 is configured as a circle. An axial end (i.e., an upper end of the cylinder body 110) of the cylinder body 110 is configured as an open end. The cover body 120 is detachably arranged on the open end of the cylinder body 110, so as to close the open end of the cylinder body 110 and prevent materials from spilling out.

[0022] As shown, Figure 3 The lower end of the cylinder body 110 is provided with a first discharge port 130. The base 200 is provided with a second discharge port 210. The first discharge port 130 and the second discharge port 210 are in communication with each other in the height direction, so that the materials in the cylinder body 110 can fall downward from the first discharge port 130 into the second discharge port 210. The materials in the second discharge port 210 are cut and crushed materials.

[0023] As shown, Figure 3 In order to control the falling rate of the materials from the first discharge port 130, the grass crusher of the embodiment further comprises a material blocking plug 220. The material blocking plug 220 is slidably arranged between the first discharge port 130 and the second discharge port 210. The material blocking plug 220 can close the first discharge port 130. When the material blocking plug 220 slides, the communication area of the first discharge port 130 and the second discharge port 210 can change, so as to change the falling rate of the materials from the first discharge port 130. In the embodiment, the lower surface of the material blocking plug 220 is slidably arranged on the upper surface of the base 200. At least part of the structure of the material blocking plug 220 is located outside the cylinder body 110. The staff can manually pull the part of the material blocking plug 220 located outside the cylinder body 110, so as to change the communication area of the first discharge port 130 and the second discharge port 210. It should be noted that the material blocking plug 220 of the embodiment can completely close the first discharge port 130, so as to adapt to different working requirements.

[0024] AsFigure 3 As shown, in some preferred embodiments, the sliding direction of the baffle plate 220 is configured in the horizontal direction, while the axial direction of the output shaft 310 of the drive member 300 is configured in the vertical direction. The baffle plate 220 is provided with a groove 221 along its sliding direction, that is, the length direction of the groove 221 is configured in the sliding direction. The output shaft 310 of the drive member 300 passes through the groove 221 along its axial direction. The groove 221 can slide and cooperate with the output shaft 310. On the one hand, the groove 221 can avoid the output shaft 310 of the drive member 300. On the other hand, the output shaft 310 can restrict the movement of the baffle plate 220, so that the baffle plate 220 is kept as far as possible in its sliding direction.

[0025] like Figure 3 As shown, in this embodiment, the base 200 is provided with a material guiding mechanism 230. One end of the material guiding mechanism 230 corresponds to the second discharge port 210, and the other end of the material guiding mechanism 230 is configured as a third discharge port, which can discharge the crushed material outward. The material guiding mechanism 230 includes a first U-shaped material plate 231 and a second U-shaped material plate 232. The first U-shaped material plate 231 is inclinedly disposed at the lower end of the base 200, and one end of the first U-shaped material plate 231 corresponds vertically to the second discharge port 210. One end of the second U-shaped material plate 232 is hinged to the other end of the first U-shaped material plate 231, and the other end of the second U-shaped material plate 232 is configured as a third discharge port. The first U-shaped material plate 231 and the second U-shaped material plate 232 can be combined to form a channel for material to fall outward. After the crushed material comes out from the second discharge port 210, it can fall into the first U-shaped material plate 231, and fall down along the first U-shaped material plate 231 into the second U-shaped material plate 232, and finally fall outward. The second U-shaped material plate 232 and the first U-shaped material plate 231 can be hinged together by a pin or a damping shaft. This hinge allows the second U-shaped material plate 232 to be lifted upwards around the hinge point. When the second U-shaped material plate 232 is lifted upwards, the material cannot fall outwards through it, thus facilitating material control. In some preferred embodiments, a magnet (not shown) can be placed between the second U-shaped material plate 232 and the first U-shaped material plate 231. When the second U-shaped material plate 232 is lifted to a predetermined position, the magnets between it and the first U-shaped material plate 231 attract each other, preventing the material from falling outwards through it. To allow material to fall out, the second U-shaped material plate 232 can be manually rotated downwards to disengage the magnets.

[0026] It should be noted that this embodiment only describes one structural form of the material guiding mechanism 230. In addition to the structural form of the material guiding mechanism 230 described in this embodiment, the material guiding mechanism 230 can also be in the form of a flexible hose, with one end of the flexible hose connected to the base 200 and corresponding to the second discharge port 210, and the other end of the flexible hose configured as the third discharge port.

[0027] like Figure 3 As shown, the drive unit 300 is configured as a motor. The drive unit 300 is located at the lower end of the base 200, and the output shaft 310 (i.e., the motor shaft) of the drive unit 300 passes upward through the base 200 and extends into the material cylinder 100. The output shaft 310 of the drive unit 300 is coaxially arranged with the material cylinder 100.

[0028] like Figure 4 and Figure 5 As shown, the blade mechanism 400 includes a mounting sleeve 410, a spacer 420, a locking member 430, and at least two blades 440 (only two blades are shown in this embodiment), as described below:

[0029] like Figure 4 and Figure 5 As shown, the mounting sleeve 410 is coaxially sleeved on the output shaft 310 of the drive component 300. The mounting sleeve 410 and the output shaft 310 can be fixedly connected or detachably connected. In some preferred embodiments, the mounting sleeve 410 and the output shaft 310 are detachably connected by a pin 450. Both the mounting sleeve 410 and the output shaft 310 have pin holes along their radial directions, and the pin 450 is inserted into the pin holes, so that the mounting sleeve 410 and the output shaft 310 cannot be moved apart. The relative movement of the axial and circumferential directions can achieve a stable connection between the two. When it is necessary to remove the mounting sleeve 410 from the output shaft 310, it is only necessary to pull out the pin 450. Along the axial direction of the output shaft 310, the pin 450 is located on the side of the locking member 430 away from the base 200, that is, the pin 450 is located above the locking member 430, which allows the pin 450 to restrict the locking member 430 from moving upward away from the mounting sleeve 410, thus achieving axial positioning of the locking member 430.

[0030] like Figure 4 and Figure 5 As shown, the lower end of the mounting sleeve 410 is provided with a shoulder surface 411, and the mounting sleeve 410 is provided with a guide limiting groove 412 along its axial direction. The guide limiting groove 412 facilitates the installation and limiting of the blade 440. The guide limiting groove 412 extends along the axial direction of the mounting sleeve 410 to the shoulder surface 411.

[0031] like Figure 4 and Figure 5As shown, the spacer sleeves 420 are coaxially sleeved on the outer periphery of the mounting sleeve 410, and in this embodiment, at least one spacer sleeve 420 is arranged between two adjacent blades 440 in the axial direction, and the number and length of the spacer sleeves 420 between the two adjacent blades 440 are not limited in this embodiment, and the adjacent two blades 440 can be spaced apart in the height direction by a certain distance through different lengths or different numbers of spacer sleeves 420, and in this embodiment, one spacer sleeve 420 is arranged between the two blades 440, and the upper and lower end faces of the spacer sleeve 420 are respectively abutted against the surfaces of the blades 440.

[0032] As shown in Figure 4 and Figure 5 , the blades 440 are clamped between the end face of the spacer sleeve 420 and the shoulder face 411, or the blades 440 are clamped between the end face of the spacer sleeve 420 and the locking member 430. In this embodiment, the two blades 440 are coaxially arranged in the upper and lower directions, and the upper and lower surfaces of the blade 440 at the lowermost end are respectively abutted against the lower end face of the spacer sleeve 420 and the shoulder face 411, and the upper and lower surfaces of the blade 440 at the uppermost end are respectively abutted against the locking member 430 and the upper end face of the spacer sleeve 420. The center of the blade 440 is provided with a mounting hole, and the blade 440 is sleeved on the mounting sleeve 410 through the mounting hole. In this embodiment, the blade 440 is provided with a guide portion 441 arranged on the inner periphery of the mounting hole, and the guide portion 441 can axially slide with the guide limiting groove 412, so that the guide portion 441 can axially slide with respect to the guide limiting groove 412, and the guide limiting groove 412 can limit the rotation of the guide portion 441 and the blade 440 with respect to the mounting sleeve 410 in the circumferential direction.

[0033] As shown in Figure 4 and Figure 5 , the locking member 430 is connected to the mounting sleeve 410, and the locking member 430 is located above the blade 440 (the uppermost blade); in the axial direction, all the spacer sleeves 420 and the blades 440 are located between the shoulder face 411 and the locking member 430, and the shoulder face 411 and the locking member 430 limit the position of all the spacer sleeves 420 and the blades 440 in the axial direction, so as to avoid the loosening of the blades 440 and the spacer sleeves 420 in the axial direction. In this embodiment, the locking member 430 is provided with an internal thread, and the upper end of the mounting sleeve 410 is provided with an external thread matched with the internal thread, and the locking member 430 is threadedly connected to the mounting sleeve 410, and when the locking member 430 is screwed downward, all the spacer sleeves 420 and the blades 440 can be pressed tightly to avoid axial loosening. In addition, the locking member 430 can also be connected to the mounting sleeve 410 in a clamping manner, or the locking member 430 can be connected to the mounting sleeve 410 in a plug-in manner, and in this embodiment, the locking member 430 is preferably threadedly connected to the mounting sleeve 410.

[0034] The working principle of the grass chopper of the embodiment is as follows:

[0035] I. The blade mechanism 400 is installed on the output shaft 310 of the driving member 300, and the material blocking plug-in plate 220 is pushed to the limit position, so that the material blocking plug-in plate 220 completely blocks the first material falling port 130;

[0036] II. The grass and other materials are added into the barrel body 110 of the material barrel 100, then the cover body 120 is covered on the upper end of the barrel body 110, the driving member 300 is started and drives the blade mechanism 400 to cut and crush the materials;

[0037] III. The material blocking plug-in plate 220 is manually pulled to adjust the discharging rate, and the cut and crushed materials are guided outwards by the material guiding mechanism 230.

[0038] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by the skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A grass shredder, characterized in that, It includes a material cylinder (100), a base (200), a drive unit (300), and a blade mechanism (400); The material cylinder (100) is mounted on the base (200); the drive unit (300) is mounted on the base (200), and the output shaft (310) of the drive unit (300) is located inside the material cylinder (100); The blade mechanism (400) includes a mounting sleeve (410), a spacer (420), a locking element (430), and at least two blades (440); the mounting sleeve (410) is disposed on the output shaft (310) of the drive element (300); the mounting sleeve (410) is provided with a shoulder surface (411); the mounting sleeve (410) is provided with a guide limiting groove (412) along its axial direction; along the axial direction of the output shaft (310), the lowermost blade (440) is attached to the shoulder surface (411); the blade The blade (440) is fitted onto the mounting sleeve (410), and the blade (440) is provided with a guide portion (441) that slides with the guide limiting groove (412); the spacer (420) is fitted onto the mounting sleeve (410), and at least one spacer (420) is provided between two adjacent blades (440); the locking member (430) is connected to the mounting sleeve (410), and the spacer (420) and the blade (440) are restricted in axial position by the locking member (430) and the shoulder surface (411).

2. The grass shredder according to claim 1, characterized in that, The material cylinder (100) includes a cylinder body (110) and a cover body (120). The cylinder body (110) is disposed on a base (200), and the cover body (120) is detachably fitted onto the end of the cylinder body (110) away from the base (200).

3. The grass shredder according to claim 2, characterized in that, The cylinder (110) is detachably mounted on the base (200).

4. The grass shredder according to claim 1, characterized in that, The material cylinder (100) is provided with a first discharge port (130), and the base (200) is provided with a second discharge port (210) that is connected to the first discharge port (130); the baffle plate (220) is slidably disposed between the first discharge port (130) and the second discharge port (210) to change the connection area between the first discharge port (130) and the second discharge port (210).

5. The grass shredder according to claim 4, characterized in that, The baffle plate (220) is provided with a groove (221) along its sliding direction, and the output shaft (310) of the drive member (300) passes through the groove (221); the sliding direction is perpendicular to the axial direction of the output shaft (310).

6. The grass shredder according to claim 4 or 5, characterized in that, The base (200) is provided with a material guiding mechanism (230), one end of which corresponds to the second discharge port (210), and the other end of which is configured as the third discharge port.

7. The grass shredder according to claim 6, characterized in that, The material guiding mechanism (230) includes a first U-shaped material plate (231) and a second U-shaped material plate (232). The first U-shaped material plate (231) is disposed at the lower end of the base (200) and one end of the first U-shaped material plate (231) corresponds to the second discharge port (210). One end of the second U-shaped material plate (232) is hinged to the first U-shaped material plate (231), and the other end of the second U-shaped material plate (232) is configured as the third discharge port.

8. The grass shredder according to claim 1, characterized in that, The mounting sleeve (410) and the output shaft (310) of the drive component (300) are both provided with pin holes, and pins (450) are provided in the pin holes. The pins (450) can make the connection between the mounting sleeve (410) and the output shaft (310) secure, and the pins (450) are located on the side of the locking component (430) away from the base (200).

9. The grass shredder according to claim 1, characterized in that, The locking element (430) is threadedly connected to the mounting sleeve (410).

10. The grass shredder according to claim 1, characterized in that, The blade (440) is held between the end face of the spacer (420) and the shoulder face (411), or the blade (440) is held between the end face of the spacer (420) and the locking member (430).

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