A harrow with adjustable digging depth
By setting an adjustment section and a winding section on the leveler, and using an A-frame and motor drive, the depth adjustment of the leveler and the uniform winding of the wire rope are realized, which solves the problem of complex depth adjustment of existing levelers and improves construction efficiency and work quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG SHANZUN IND DEVELOPMENT CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-26
AI Technical Summary
Existing leveling tools have complex digging depth adjustment structures and are cumbersome to operate, making it difficult to quickly and accurately adjust the digging depth according to different operational needs, which affects construction efficiency and work quality.
By setting up an adjustment section and a winding section, including an A-frame, a single-wheel pulley, a lifting wire rope, a winding assembly, and a motor drive, the depth adjustment of the rake leveler and the uniform winding of the wire rope can be achieved, avoiding knots or tangles and simplifying the depth adjustment process.
It enables rapid and precise depth adjustment of the leveling tool, improves construction efficiency, prevents wire rope tangling, and ensures consistent work quality.
Smart Images
Figure CN224412652U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rake leveling technology, and in particular relates to a rake leveling device with adjustable digging depth. Background Technology
[0002] An adjustable digging depth harrow leveler is an engineering tool that incorporates a depth adjustment mechanism within its structure, such as a liftable harrow tooth assembly or a support device with adjustable scale. This allows for flexible adjustment of the vertical distance between the harrow teeth and the working surface according to actual operational needs, thereby precisely controlling the digging and leveling depth. It is widely applicable to various operational scenarios such as earthwork engineering, farmland preparation, and site leveling, improving work efficiency and flatness accuracy.
[0003] Existing leveling tools have problems such as complex digging depth adjustment structure and cumbersome operation in actual operation. This makes it difficult for operators to quickly and accurately adjust the digging depth according to different operation needs, which not only affects construction efficiency, but also easily leads to inconsistent operation quality. Utility Model Content
[0004] The purpose of this utility model is to provide a leveling tool with adjustable digging depth. By setting an adjustment part, it solves the problems of complex digging depth adjustment structure and cumbersome operation, which makes it difficult for operators to quickly and accurately adjust the digging depth according to different work needs. This not only affects construction efficiency, but also easily leads to inconsistent work quality.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to an adjustable digging depth leveler, comprising a hull and an adjustment unit mounted on the hull for adjusting the digging depth of the leveler; and a winding unit mounted on the hull for adjusting the winding degree of the lifting wire rope in the adjustment unit. When adjusting the digging depth of the leveler according to actual needs, the winding unit is activated, and the digging depth is controlled by the adjustment unit to meet the requirements of different digging depths. Furthermore, when retrieving the leveler, the winding unit effectively prevents the lifting wire rope on the leveler from knotting or tangling.
[0007] Furthermore, the adjustment unit includes an A-frame mounted on the top of the hull, on which a single-wheel pulley is fixedly connected. A lifting wire rope is slidably connected to the single-wheel pulley, and a short lifting anchor chain is mounted at the bottom end of the lifting wire rope. A leveling device is fixedly connected to the end of the short lifting anchor chain away from the lifting wire rope. A drive unit is mounted on the hull. After the lifting wire rope is released by the winding unit, the lifting wire rope will drive the leveling device on the short lifting anchor chain to adjust to a suitable digging depth via the single-wheel pulley on the A-frame. Subsequently, the leveling device will operate with the help of the drive unit on the hull.
[0008] Furthermore, the winding section includes a winding assembly mounted on the hull for winding the lifting wire rope; and a moving assembly mounted on the winding assembly for adjusting the lifting wire rope wound by the winding assembly to prevent knotting and tangling. When the winding assembly is winding the lifting wire rope, the moving assembly can move the lifting wire rope left and right to prevent knotting or tangling.
[0009] Furthermore, the winding assembly includes a support frame fixedly connected to the top of the hull, a motor sleeve fixedly connected to the front of the support frame, a motor sleeve fitted on the motor sleeve, and a rotating shaft fixedly connected to the output shaft of the motor via a coupling, with a winding component mounted on the rotating shaft; wherein the rotating shaft passes through the support frame and is rotatably connected to the support frame.
[0010] Furthermore, the moving component includes a reciprocating screw rotatably connected to a support frame, a moving block threadedly connected to the outer wall of the reciprocating screw, a moving hole provided on the moving block, the end of the lifting wire rope extending out of the moving hole and contacting the winding member, a balance bar fixedly connected to the support frame, the balance bar passing through the moving block and slidably connected to the moving block, and a connecting member provided on the reciprocating screw; wherein, the rear end of the reciprocating screw extends out of the support frame and is rotatably connected to the support frame.
[0011] Furthermore, the driving component includes towing steel wire ropes that are both installed on both sides of the hull, and the ends of both towing steel wire ropes are fixedly connected to the leveling device; wherein, since the towing steel wire ropes on both sides of the hull are connected to the leveling device, when the hull moves, it can drive the leveling device to move synchronously with the pull of the towing steel wire ropes on both sides, thereby completing the operation task.
[0012] Furthermore, the winding component includes a winding roller sleeved on the outer wall of the shaft, the outer wall of which is in contact with the lifting wire rope; wherein, the shaft drives the winding roller to wind up the lifting wire rope, and the lifting wire rope can drive the connected leveling device to adjust the digging depth.
[0013] Furthermore, the connecting component includes toothed pulleys that are both sleeved on the outer walls of the rotating shaft and the reciprocating screw, and the outer walls of the two toothed pulleys are wound with toothed belts; wherein, the toothed pulleys on the outer walls of the rotating shaft and the reciprocating screw are driven by toothed belts to achieve synchronous rotation of the two, thereby achieving a dual effect with the help of the same power.
[0014] This utility model has the following beneficial effects:
[0015] 1. By setting up an adjustment section, when it is necessary to adjust the digging depth of the leveler, the motor can be started. The motor will drive the winding roller to release the lifting wire rope through the rotating shaft. Since the lifting wire rope is connected to the leveler, with the assistance of the single wheel pulley on the A-frame, the leveler can be adjusted to a suitable digging depth. After the depth adjustment is completed, because the towing wire ropes on both sides of the hull are fixedly connected to the leveler, the pulling force generated when the hull moves can drive the leveler to work synchronously through the towing wire ropes. In addition, during the movement of the leveler, the digging depth can be finely adjusted again by adjusting the angle of the rake, which greatly simplifies the depth adjustment process and significantly improves work efficiency.
[0016] 2. By setting up a winding section, when it is necessary to retrieve the leveler, the motor is restarted. The motor will drive the winding roller through the rotating shaft to wind the lifting wire rope. At the same time, during the rotation of the rotating shaft, the toothed pulley on the rotating shaft will drive the reciprocating screw through the toothed belt and the toothed pulley on the reciprocating screw, so that the reciprocating screw can rotate synchronously with the rotating shaft. When the reciprocating screw rotates, the moving block on it will move left and right along the screw to ensure that the lifting wire rope can be evenly wound on the winding roller, effectively avoiding the wire rope from being over-concentrated and causing knots or disorder. In addition, the balance bar equipped on the moving block can maintain its stability during movement, prevent overturning, and ensure the smooth progress of the retrieval operation.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a partial cross-sectional view of the adjustment part of this utility model;
[0021] Figure 3This is a partial cross-sectional view of the winding section of this utility model;
[0022] Figure 4 This utility model Figure 2 A magnified structural diagram of A in the middle;
[0023] Figure 5 This utility model Figure 3 A magnified structural diagram of B in the diagram.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Hull; 2. Adjustment unit; 211. A-frame; 212. Single pulley; 213. Lifting wire rope; 214. Lifting short anchor chain; 215. Leveling device; 216. Towing wire rope; 3. Rewinding unit; 31. Rewinding assembly; 311. Support frame; 312. Motor sleeve; 313. Motor; 314. Shaft; 315. Rewinding roller; 32. Moving assembly; 321. Reciprocating screw; 322. Moving block; 323. Moving hole; 324. Balance bar; 325. Toothed pulley; 326. Toothed belt. Detailed Implementation
[0026] 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.
[0027] Please see Figure 1-5 As shown, this utility model is an adjustable digging depth leveler, including a hull 1, and further including: an adjustment part 2, which is installed on the hull 1 and is used to adjust the digging depth of the leveler; and a winding part 3, which is installed on the hull 1 and is used to adjust the winding degree of the lifting wire rope in the adjustment part 2; wherein, when adjusting the digging depth of the leveler according to actual needs, the winding part 3 is activated, and the digging depth of the leveler is controlled by the cooperation of the adjustment part 2, thereby meeting the requirements of digging operations at different depths. In addition, when retrieving the leveler, the winding part 3 can also effectively prevent the lifting wire rope on the leveler from knotting or tangling.
[0028] The adjustment unit 2 includes an A-frame 211 mounted on the top of the hull 1. A single-wheel pulley 212 is fixedly connected to the A-frame 211, and a lifting wire rope 213 is slidably connected to the single-wheel pulley 212. A short lifting anchor chain 214 is mounted at the bottom end of the lifting wire rope 213, and a leveling device 215 is fixedly connected to the end of the short lifting anchor chain 214 away from the lifting wire rope 213. A drive unit is mounted on the hull 1. After the winding unit 3 releases the lifting wire rope 213... The hoisting wire rope 213 will drive the leveling device 215 on the hoisting short anchor chain 214 to adjust to a suitable digging depth via the single-wheel pulley 212 on the A-frame 211. Subsequently, the leveling device 215 operates with the aid of a drive mechanism on the hull 1. The drive mechanism includes towing wire ropes 216 mounted on both sides of the hull 1, with the ends of both towing wire ropes 216 fixedly connected to the leveling device 215. The towing wire ropes 216 on both sides of the hull 1 are connected to the leveling device 215. 5. With the connection, when the hull 1 moves, it can drive the leveler 215 to move synchronously with the pull of the drag wire ropes 216 on both sides, thereby completing the work task. By setting the adjustment part 2, if it is necessary to adjust the digging depth of the leveler 215 during use, the motor 313 can be started. The motor 313 will drive the winding roller 315 to release the lifting wire rope 213 through the rotating shaft 314. Since the lifting wire rope 213 is connected to the leveler 215, with the assistance of the single wheel pulley 212 on the A-frame 211, the leveler 215 can be adjusted to a suitable digging depth. After the depth adjustment is completed, since the drag wire ropes 216 on both sides of the hull 1 are fixedly connected to the leveler 215, the pull generated when the hull 1 moves can drive the leveler 215 to work synchronously through the drag wire ropes 216. In addition, during the movement of the leveler 215, the digging depth can also be finely adjusted by adjusting the rake angle, which greatly simplifies the depth adjustment process and significantly improves work efficiency.
[0029] The winding unit 3 includes a winding assembly 31, which is mounted on the hull 1 and used to wind up the lifting wire rope 213; and a moving assembly 32, which is mounted on the winding assembly 31 and used to adjust the lifting wire rope 213 wound by the winding assembly 31 to prevent it from knotting or tangling. When the winding assembly 31 winds up the lifting wire rope 213, the moving assembly 32 can move the lifting wire rope 213 left and right to prevent knotting or tangling. The winding assembly 31 includes a support frame 311 fixedly connected to the top of the hull 1. A motor sleeve 312 is fixedly connected to the front of the support frame 311, and a motor 313 is mounted on the motor sleeve 312. The output shaft of the motor 313 is connected via a coupling. A rotating shaft 314 is fixedly connected, and a winding component is mounted on the rotating shaft 314. The rotating shaft 314 passes through a support frame 311 and is rotatably connected to the support frame 311. The moving component 32 includes a reciprocating screw 321 rotatably connected to the support frame 311. A moving block 322 is threaded onto the outer wall of the reciprocating screw 321. A moving hole 323 is provided on the moving block 322. The end of the lifting wire rope 213 extends out of the moving hole 323 and contacts the winding component. A balance bar 324 is fixedly connected to the support frame 311. The balance bar 324 passes through the moving block 322 and is slidably connected to the moving block 322. A connecting component is mounted on the reciprocating screw 321. The rear end of the reciprocating screw 321 extends out of the support frame 311 and rotates with the support frame 311. The connection and winding component includes a winding roller 315 sleeved on the outer wall of the rotating shaft 314, the outer wall of which contacts the lifting wire rope 213. The rotating shaft 314 drives the winding roller 315 to wind up the lifting wire rope 213, which in turn drives the connected leveling device 215 to adjust the digging depth. The connecting component includes toothed pulleys 325 sleeved on the outer walls of the rotating shaft 314 and the reciprocating screw 321, with toothed belts 326 wound around their outer walls. The toothed pulleys 325 on the outer walls of the rotating shaft 314 and the reciprocating screw 321 are driven by the toothed belts 326, achieving synchronous rotation of both. This achieves a dual effect with the same power. By providing the winding section 3, if the leveling device 215 needs to be retrieved, it can be wound again... When the motor 313 is started, it drives the winding roller 315 to wind the lifting wire rope 213 via the rotating shaft 314. At the same time, during the rotation of the rotating shaft 314, the toothed pulley 325 on the rotating shaft 314 will drive the reciprocating screw 321 to rotate synchronously with the rotating shaft 314 through the transmission of the toothed belt 326 and the toothed pulley 325 on the reciprocating screw 321. When the reciprocating screw 321 rotates, the moving block 322 on it will move left and right along the screw to ensure that the lifting wire rope 213 can be evenly wound on the winding roller 315, effectively avoiding the wire rope from being over-concentrated and causing knots or disorder. In addition, the balance bar 324 equipped on the moving block 322 can maintain its stability during movement, prevent overturning, and ensure the smooth progress of the recovery operation.
[0030] One specific application of this embodiment is as follows: When using the rake 215, if the digging depth needs to be adjusted, the motor 313 can be started. The motor 313 will drive the winding roller 315 through the rotating shaft 314 to release the lifting wire rope 213. Since the lifting wire rope 213 is connected to the rake 215, with the assistance of the single-wheel pulley 212 on the A-frame 211, the rake 215 can be adjusted to a suitable digging depth. After the depth adjustment is completed, because the towing wire ropes 216 on both sides of the hull 1 are fixedly connected to the rake 215, the tension generated when the hull 1 moves can drive the rake 215 to work synchronously through the towing wire ropes 216. Furthermore, during the movement of the rake 215, the digging depth can be finely adjusted a second time by adjusting the rake angle, greatly simplifying the depth adjustment process and significantly improving efficiency. Efficiency: When the rake 215 needs to be recovered, the motor 313 is restarted. The motor 313 will drive the winding roller 315 to wind the lifting wire rope 213 through the rotating shaft 314. At the same time, during the rotation of the rotating shaft 314, the toothed pulley 325 on the rotating shaft 314 will be driven by the toothed belt 326 and the toothed pulley 325 on the reciprocating screw 321, so that the reciprocating screw 321 can rotate synchronously with the rotating shaft 314. When the reciprocating screw 321 rotates, the moving block 322 on it will move left and right along the screw to ensure that the lifting wire rope 213 can be evenly wound on the winding roller 315, effectively avoiding the wire rope from being over-concentrated and causing knots or disorder. In addition, the balance bar 324 equipped on the moving block 322 can maintain its stability during movement, prevent overturning, and ensure the smooth progress of the recovery operation.
[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A leveling device with adjustable digging depth, comprising a hull (1), characterized in that, Also includes: Adjustment unit (2), which is installed on the hull (1) and is used to adjust the digging depth of the rake; as well as The winding section (3) is installed on the hull (1) and is used to adjust the winding degree of the lifting wire rope in the adjustment section (2); When adjusting the digging depth of the rake according to actual needs, the winding section (3) is activated, and the digging depth of the rake is controlled by the adjustment section (2) to meet the requirements of digging operations at different depths. In addition, when the rake is retrieved, the winding section (3) can effectively prevent the lifting wire rope on the rake from getting knotted or tangled.
2. The adjustable digging depth harrow as described in claim 1, characterized in that, The adjustment unit (2) includes an A-frame (211) set on the top of the hull (1), a single-wheel pulley (212) fixedly connected to the A-frame (211), a lifting wire rope (213) slidably connected to the single-wheel pulley (212), a lifting short anchor chain (214) set at the bottom end of the lifting wire rope (213), a leveling device (215) fixedly connected at the end of the lifting short anchor chain (214) away from the lifting wire rope (213), and a driving component set on the hull (1). After the hoisting wire rope (213) is released by the winding section (3), the hoisting wire rope (213) will drive the leveling device (215) on the hoisting short anchor chain (214) to adjust to a suitable digging depth via the single wheel pulley (212) on the A-frame (211). Subsequently, the leveling device (215) will work with the help of the drive components on the hull (1).
3. The adjustable digging depth harrow as described in claim 2, characterized in that, The winding section (3) includes a winding assembly (31) mounted on the hull (1) for winding up the lifting wire rope (213); and The moving component (32) is mounted on the winding assembly (31) and is used to adjust the lifting wire rope (213) wound by the winding assembly (31) to prevent it from getting knotted or tangled. When the winding assembly (31) winds up the hoisting wire rope (213), the moving assembly (32) can move the hoisting wire rope (213) left and right to prevent it from getting tangled or wrapped.
4. A leveling device with adjustable digging depth according to claim 3, characterized in that, The winding assembly (31) includes a support frame (311) fixedly connected to the top of the hull (1). A motor sleeve (312) is fixedly connected to the front of the support frame (311). A motor (313) is sleeved on the motor sleeve (312). The output shaft of the motor (313) is fixedly connected to a rotating shaft (314) through a coupling. A winding component is provided on the rotating shaft (314). The rotating shaft (314) passes through the support frame (311) and is rotatably connected to the support frame (311).
5. A leveling device with adjustable digging depth according to claim 4, characterized in that, The moving component (32) includes a reciprocating screw (321) rotatably connected to a support frame (311), a moving block (322) threadedly connected to the outer wall of the reciprocating screw (321), a moving hole (323) provided on the moving block (322), the end of the lifting wire rope (213) extending to the outside of the moving hole (323) and contacting the winding member, a balance bar (324) fixedly connected to the support frame (311), the balance bar (324) passing through the moving block (322) and slidably connected to the moving block (322), and a connecting member provided on the reciprocating screw (321); The rear end of the reciprocating screw (321) extends to the outside of the support frame (311) and is rotatably connected to the support frame (311).
6. A leveling device with adjustable digging depth according to claim 5, characterized in that, The driving component includes towing steel wire ropes (216) that are both arranged on both sides of the hull (1), and the ends of the two towing steel wire ropes (216) are fixedly connected to the leveling device (215). Since the towing wire ropes (216) on both sides of the hull (1) are connected to the leveling device (215), when the hull (1) moves, it can use the pulling force of the towing wire ropes (216) on both sides to drive the leveling device (215) to move synchronously, thereby completing the operation task.
7. A leveling device with adjustable digging depth according to claim 6, characterized in that, The winding component includes a winding roller (315) sleeved on the outer wall of the rotating shaft (314), and the outer wall of the winding roller (315) is in contact with the lifting wire rope (213). The hoisting wire rope (213) is wound up by the winding roller (315) driven by the rotating shaft (314), and the hoisting wire rope (213) can drive the rake (215) connected to it to adjust the digging depth.
8. A leveling device with adjustable digging depth according to claim 7, characterized in that, The connector includes toothed pulleys (325) that are sleeved on the outer walls of the rotating shaft (314) and the reciprocating screw (321), and toothed belts (326) are wound around the outer walls of the two toothed pulleys (325). In this process, the toothed pulley (325) on the outer wall of the rotating shaft (314) and the reciprocating screw (321) is driven by the toothed belt (326) to achieve synchronous rotation of the two, thereby achieving a dual effect with the help of the same power.