A high strength protective cover for a harrow

Abstract

The utility model discloses a high strength protective cover for harrow machine belongs to tillage mechanical technical field, aims at solving the problem of existing protective cover because of rigid connection easy collision damage, the protective cover includes protective cover main part, adjusting assembly and buffer assembly, adjusting assembly includes the sliding groove on the protective cover main part, the sliding cover of sliding cooperation in the sliding groove to and the card block of setting on the sliding cover and with the multiple snap groove of sliding groove optional carding, buffer assembly includes the fixed post of fixed connection in the protective cover main part, the sliding post of sliding connection with fixed post and the second spring of sleeve setting on the sliding post, and the relative sliding of fixed post and sliding post can compress second spring. The utility model discloses through adjusting assembly realized the convenient adjustment of protective cover width, improved the device versatility, and through buffer assembly effective absorption in the operation impact energy simultaneously, avoided the damage of protective cover because of rigid collision, and the strength and reliability of structure were improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of tillage machinery technology, and in particular to a high-strength protective cover for a harrowing machine. Background Technology

[0002] A harrow is a type of tillage machinery widely used in agricultural production. It is mainly used to break up soil clods and loosen soil. During the operation of the harrow, the high-speed rotating harrow blades will turn up a large amount of soil, gravel and other debris. These flying objects may not only pose a safety hazard to the operator, but may also damage the tractor or other equipment. Therefore, a protective cover is usually installed around the disc harrow.

[0003] Existing protective covers for tillers are usually quite simple in structure, consisting of one or more metal plates spliced ​​together and rigidly fixed to the tiller frame with bolts or other fasteners. This fixing method is simple in structure and low in cost, and can provide basic protection on flat, unobstructed land.

[0004] However, in actual farmland operations, the ground conditions are complex, and there are often hard obstacles such as stones and tree roots that have not been cleared in time, or there are large undulations in the ground. When this rigidly connected protective cover collides with these obstacles, the huge impact force will act directly on the structure of the protective cover itself and its connection points without any buffering. This can easily cause the protective cover to undergo plastic deformation, cracking or even breakage, greatly shortening its service life and increasing maintenance costs and the risk of work interruption. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-strength protective cover for a harrowing machine, which aims to improve the problem that the existing harrowing machine protective cover has a fixed structure and lacks cushioning, making it unable to adapt to harrowing machines of different widths and easily damaged by collisions.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-strength protective cover for a tillage machine includes: a main body of the protective cover; and an adjustment component and a buffer component disposed on the main body of the protective cover; The adjustment component includes a sliding groove formed on the main body of the protective cover, a plurality of slots spaced apart along the groove wall, and a sliding cover slidably fitted within the sliding groove. The sliding cover is provided with a retractable locking block, which locks the width of the main body of the protective cover by selectively engaging with any of the slots. The buffer component includes a fixed post fixedly connected inside the main body of the protective cover, a sliding post slidably connected to the fixed post, and a second spring sleeved on the sliding post. The sliding post is adapted to connect to the frame of the harrowing machine. The relative sliding between the fixed post and the sliding post causes the second spring to compress, thereby forming a buffer structure capable of absorbing impact.

[0007] Preferably, a sliding block is fixedly connected to the sliding cover, and the locking block is disposed inside the sliding block; a limiting block is also slidably connected inside the sliding block, and the locking block is fixedly connected to the limiting block; a first spring with one end abutting against the limiting block is disposed inside the sliding block.

[0008] Preferably, a connecting block is slidably connected inside the sliding block, and the connecting block is in slidable contact with the limiting block; the adjusting component also includes a pull rod, which is fixedly connected to the connecting block.

[0009] Preferably, a fixing block is fixedly connected to the outer wall of the sliding column, and the second spring is located between the fixing block and the fixing column.

[0010] Preferably, the high-strength protective cover for the harrow also includes a disc harrow, with the main body of the protective cover covering the outer periphery of the disc harrow.

[0011] Preferably, the protective cover body includes at least two relatively slidable parts, the sliding cover is fixedly connected to one of the parts, and the sliding groove is formed in the other part.

[0012] Preferably, the other end of the first spring abuts against the inner wall of the sliding block.

[0013] Preferably, a plurality of buffer components are provided, and the plurality of buffer components are distributed at intervals along the length direction of the protective cover body.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by setting an adjustment component, the sliding cover slides in the sliding groove and the locking block selectively engages with multiple locking grooves, the problem of the protective cover having a single structure and fixed width in the prior art, which cannot be adapted to different specifications of disc rakes, is solved. This achieves the technical effect of making the width of the protective cover easily adjustable and improving the versatility and applicability of the device.

[0015] 2. In this utility model, by setting up a buffer component, the sliding cooperation between the fixed column and the sliding column, as well as the compression and rebound of the second spring, solves the problem in the prior art that the protective cover and the frame are rigidly connected, which is prone to structural damage and short service life when encountering obstacles such as stones. It achieves the technical effect of effectively buffering and absorbing impact energy, avoiding damage to the protective cover body, and significantly improving the structural strength and reliability of the device. Attached Figure Description

[0016] Figure 1 This is a perspective view of a high-strength protective cover for a tiller proposed in this utility model; Figure 2 This is a schematic diagram of the sliding cover of a high-strength protective cover for a tiller proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the main body of a high-strength protective cover for a tiller proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0017] Legend: 1. Tractor; 2. Adjustment assembly; 201. Sliding groove; 202. Slot; 203. Sliding cover; 204. Sliding block; 205. Slotting block; 206. Limiting block; 207. First spring; 208. Connecting block; 209. Pull rod; 3. Buffer assembly; 301. Fixed column; 302. Sliding column; 303. Fixed block; 304. Second spring; 4. Disc rake; 5. Protective cover body. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1-5This utility model provides an embodiment of a high-strength protective cover for a tillage machine, comprising a protective cover body 5, an adjustment component 2 connected to the protective cover body 5, and a buffer component 3 also connected to the protective cover body 5. The protective cover body 5 covers the outer periphery of a disc rake 4. The protective cover body 5 includes at least two relatively slidable parts. The adjustment component 2 is slidably connected to the protective cover body 5 to change the lateral width of the protective cover body 5. The buffer component 3 is vertically arranged and connects the protective cover body 5 to the tillage machine frame. The adjustment component 2 includes a sliding groove 201 formed on the protective cover body 5, a plurality of slots 202 spaced apart along the groove wall of the sliding groove 201, and a sliding cover 203 slidably fitted within the sliding groove 201. Another part of the protective cover body 5 is fixedly connected to the sliding cover 203, which is provided with a retractable locking block 205. The locking block 205 can be selectively locked into any of the slots 202 to realize the segmented adjustment and fixation of the width of the protective cover body 5. The buffer assembly 3 includes a fixed column 301 fixedly connected inside the protective cover body 5, a sliding column 302 suitable for connecting to the frame of the harrow and slidably connected to the fixed column 301, and a second spring 304 sleeved on the sliding column 302. When the fixed column 301 slides along the axial direction of the sliding column 302 under the action of external force, the second spring 304 is compressed to absorb the impact energy. Multiple buffer assemblies 3 are provided, and the multiple buffer assemblies 3 are distributed at intervals along the length direction of the protective cover body 5. A sliding block 204 is fixedly connected to the sliding cover 203. A locking block 205, a limiting block 206, and a connecting block 208 are all slidably disposed within the inner cavity of the sliding block 204. The locking block 205 is fixedly connected to the limiting block 206, and the limiting block 206 slides in contact with the connecting block 208. The adjusting assembly 2 also includes a first spring 207 and a pull rod 209. The first spring 207 is disposed within the sliding block 204, with one end abutting against the limiting block 206 and the other end abutting against the inner wall of the sliding block 204. The pull rod 209 is fixedly connected to the connecting block 208 and extends to the outside of the sliding block 204. When the first spring 207 is in an extended state, its elastic force pushes the locking block 205 out of the sliding block 204 and engages with any of the locking blocks through the limiting block 206. Within the groove 202, the width of the protective cover body 5 is locked. When the width needs to be adjusted, the pull rod 209 is pulled outward. The pull rod 209 drives the connecting block 208 to move, and the connecting block 208 pushes the limiting block 206. The limiting block 206 compresses the first spring 207 while driving the locking block 205 to retract inward, until the locking block 205 is completely disengaged from the groove 202. At this time, the sliding cover 203 can slide freely within the sliding groove 201. After adjusting to the new position, the pull rod 209 is released, and the rebound force of the first spring 207 pushes the limiting block 206 to reset, thereby causing the locking block 205 to re-engage in the corresponding groove 202, completing the new locking. The entire structure is compact and ensures the convenience of adjustment operation and the stability of the locking state. To achieve the width expansion and contraction of the protective cover body 5, the protective cover body 5 includes at least two relatively sliding parts. A sliding cover 203 is fixedly connected to one part, while a sliding groove 201 is opened in the other part. By sliding the sliding cover 203 in the sliding groove 201, the two parts of the protective cover body 5 are directly driven to generate relative displacement, thereby changing its overall coverage width. To clarify the installation and force-bearing structure of the second spring 304, a fixing block 303 is fixedly connected to the outer wall of the sliding column 302. The second spring 304 is located between the fixing block 303 and the fixing column 301, with its two ends abutting against the upper surface of the fixing block 303 and the lower surface of the fixing column 301, respectively. To improve the overall stability and buffering effect of the protection, multiple buffer components 3 are provided. These multiple buffer components 3 are distributed at intervals along the length direction of the protective cover body 5. The device also includes a disc rake 4. The protective cover body 5 covers the outer periphery of the disc rake 4 to form effective operational protection.

[0020] Working principle: When adjusting the width, first pull the lever 209. The lever 209 pushes the limiting block 206 to slide within the sliding block 204 through the connecting block 208. While the limiting block 206 is sliding, it drives the fixedly connected locking block 205 to retract inward and compress the first spring 207. When the locking block 205 is completely disengaged from the slot 202, the sliding cover 203 can be pulled or pushed. Since the sliding cover 203 slides with the sliding groove 201, this action can change the overall width of the protective cover body 5. After adjusting to the appropriate position, release the lever 209. The compressed first spring 207 rebounds and pushes the limiting block 206 to reset, thereby pushing the locking block 205 into the new slot 202 to complete the locking. When the protective cover body 5 encounters hard objects such as rocks or uneven road surfaces during operation, the upward impact force it receives will be transmitted to the fixed column 301, causing the fixed column 301 to slide upward along the outer wall of the sliding column 302. During the sliding process, the fixed column 301 will compress the second spring 304 between itself and the fixed block 303. The impact energy is absorbed by the compression deformation of the second spring 304, avoiding rigid collision between the protective cover body 5 and hard objects and thus preventing damage. After passing the obstacle, the rebound force of the second spring 304 will cause the fixed column 301 and the protective cover body 5 to return to their original positions smoothly.

Claims

1. A high-strength protective cover for a harrow machine, comprising a protective cover body (5), characterized in that, Also includes: Adjustment component (2), the adjustment component (2) includes a sliding groove (201) opened on the protective cover body (5), a plurality of slots (202) spaced apart along the groove wall of the sliding groove (201), and a sliding cover (203) slidably fitted in the sliding groove (201), the sliding cover (203) is provided with a retractable locking block (205), the locking block (205) can be selectively locked into any of the slots (202); The buffer assembly (3) includes a fixed column (301) fixedly connected inside the protective cover body (5), a sliding column (302) adapted to connect to the frame of the harrow and slidably connected to the fixed column (301), and a second spring (304) sleeved on the sliding column (302), the second spring (304) being compressed when the fixed column (301) slides relative to the sliding column (302).

2. A high strength protective cover for a harvester as claimed in claim 1, wherein: A sliding block (204) is fixedly connected to the sliding cover (203), and a locking block (205) is disposed inside the sliding block (204); a limiting block (206) is also slidably connected inside the sliding block (204), and the locking block (205) is fixedly connected to the limiting block (206); a first spring (207) with one end abutting against the limiting block (206) is disposed inside the sliding block (204).

3. A high strength protective cover for a harvester as claimed in claim 2, wherein: The sliding block (204) is also slidably connected to a connecting block (208), and the connecting block (208) is in slidable contact with the limiting block (206); the adjusting component (2) also includes a pull rod (209), which is fixedly connected to the connecting block (208).

4. A high strength protective cover for a harvester as claimed in claim 1, wherein: A fixing block (303) is fixedly connected to the outer wall of the sliding column (302), and the second spring (304) is located between the fixing block (303) and the fixing column (301).

5. A high strength protective cover for a harvester as claimed in claim 1, wherein: It also includes a disc rake (4), and the protective cover body (5) covers the outer periphery of the disc rake (4).

6. A high strength protective cover for a harvester as claimed in claim 1, wherein: The protective cover body (5) includes at least two relatively slidable parts, the sliding cover (203) is fixedly connected to one of the parts, and the sliding groove (201) is opened in the other part.

7. A high strength protective cover for a harvester as claimed in claim 2, wherein: The other end of the first spring (207) abuts against the inner wall of the sliding block (204).

8. A high strength protective cover for a harvester as claimed in claim 1, wherein: The shield is provided with a plurality of buffer components (3), which are spaced apart along the length of the shield body (5).

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