Grab bucket of trenching machine
By designing a hitting mechanism on the grab of the groove-forming machine, and using hydraulic drive and impact methods to clean the stuck soil, the problem of soil adhesion is solved, and the working efficiency and energy utilization of the grab are improved.
Patent Information
- Application Number
- CN202422359859.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-26
AI Technical Summary
During the construction process of the groove-forming machine grab, the soil is prone to stick to the inner wall of the grab, resulting in a smaller volume of effective grabbing and energy consumption.
A groove-forming machine grab is designed and equipped with a strike mechanism, including a fixed seat, a sliding seat, an energy storage assembly, a strike assembly and a locking assembly. The adhesion soil is cleaned through hydraulic drive and impact to prevent the soil from adhesion.
Effectively clean the soil in the grab, prevent capacity reduction and energy waste caused by soil sticking, and improve the working efficiency of the grab.
Smart Images
Figure CN223151255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grooving construction machinery, and particularly relates to a grab bucket of a grooving machine. Background Art
[0002] The grab bucket of the grooving machine is a key device in the construction of plastic concrete cut-off walls and diaphragm walls, and is mainly used for excavating the groove sections of plastic concrete cut-off walls and diaphragm walls.
[0003] During the construction process of the existing grab bucket of the grooving machine, sticky soil is often encountered. Especially in the south of China, where there are many red lands, during the construction process, the grab bucket of the grooving machine needs to grab the soil and then put it into the ground stacking area for stacking. When the grab bucket of the grooving machine unloads the soil in the grab bucket, some soil is easily adhered to the bottom of the grab bucket, and some soil adheres to the grab bucket, resulting in a smaller effective grabbing volume of the grab bucket. Moreover, the adhered soil consumes a large amount of energy during the process of rising or falling with the grab bucket, causing waste of energy.
[0004] In summary, there is an urgent need for a grab bucket of a grooving machine to solve or at least partially solve the problems existing in the prior art. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a grab bucket of a grooving machine, aiming to solve the problem that soil adheres to the grab bucket of the grooving machine during the grabbing process and cannot be unloaded normally. The specific technical solution is as follows:
[0006] A grab bucket of a grooving machine includes a frame body, a linear driving mechanism and a grab bucket. The grab bucket is hinged to the bottom of the frame body. The fixed end of the linear driving mechanism is connected to the frame body, and the driving end of the linear driving is hinged to the grab bucket through a connecting rod. Two grab buckets are arranged oppositely. The grooving machine grab bucket further includes a striking mechanism. The striking mechanism is arranged on the frame body and corresponds to the grab bucket. The striking mechanism includes a fixed seat, a sliding seat, an energy storage component, a striking component and a locking component. The fixed seat is fixedly connected to the frame body. A receiving groove is arranged in the fixed seat. The first end of the sliding seat is slidably connected in the receiving groove, and the second end of the sliding seat extends out of the fixed seat. The striking component is slidably connected to the sliding seat. The locking component is arranged on the sliding seat and is used for limiting the striking component. The energy storage component is arranged in the receiving groove, and one end of the energy storage component is fixedly connected to the inner wall of the fixed seat, and the other end of the energy storage component is fixedly connected to the striking component.
[0007] Further, the locking component includes a hook, an unlocking rod and an elastic member. The hook is hinged to the sliding seat. The unlocking rod is fixedly connected to the inner wall of the fixed seat, and an inclined surface is arranged on the unlocking rod, and the inclined surface is arranged at one end of the unlocking rod close to the hook. One end of the elastic member is connected to the sliding seat, and the other end of the elastic member is connected to the hook.
[0008] Preferably, the energy storage component includes a cylinder and a plunger. The cylinder is fixedly connected to the inner wall of the fixed seat. An air compression groove is arranged inside the cylinder. One end of the plunger is slidably connected in the air compression groove, and the other end of the plunger extends out of the air compression groove and is fixedly connected to the striking component.
[0009] Preferably, the energy storage component is a spring.
[0010] Further, the striking component includes a striking block. A sliding groove is provided on the sliding seat. The striking block is arranged in the sliding groove. A hook is arranged on one side of the sliding groove. The head of the hook is hooked and locked with the striking block.
[0011] Further, the striking component further includes a first wear-resistant pad and a second wear-resistant pad. The first wear-resistant pad is fixed to the bottom of the striking block. The second wear-resistant pad is fixedly connected in the sliding groove on the sliding seat, and the second wear-resistant pad is arranged corresponding to the first wear-resistant pad.
[0012] Further, a third wear-resistant pad is arranged on the sliding seat. The third wear-resistant pad is arranged at one end of the sliding seat close to the grab bucket.
[0013] Further, a first edge stop is arranged on the upper part of the sliding seat. The first edge stop is arranged on the top of the sliding seat and protrudes outward. A second edge stop is arranged on the fixed seat. The second edge stop is arranged at the notch of the accommodating groove, and the second edge stop extends into the accommodating groove.
[0014] Further, the striking mechanisms are arranged in one-to-one correspondence with the grab buckets.
[0015] Further, air vents are arranged at the bottom of the grab bucket.
[0016] Applying the technical solution of the present utility model has the following beneficial effects:
[0017] When it is necessary to unload the soil in the grab bucket of the grooving machine, the piston rod is driven by the hydraulic cylinder to move upward, and the grab bucket is driven by the connecting rod to rotate upward around the frame body, so that the grab bucket slowly opens and the soil in the grab bucket is unloaded. However, there may be a situation where some soil adheres to the inner wall of the grab bucket. During the upward rotation of the grab bucket, the bottom of the grab bucket will abut against the sliding seat and drive the sliding seat to move upward. At this time, the locking mechanism plays a locking role, so that the sliding seat drives the striking component to move upward at the same time and compresses the energy storage mechanism. The energy storage mechanism stores energy. When the opening degree of the grab bucket reaches the set position, the locking mechanism acts to unlock between the striking component and the sliding seat. The striking component moves reversely under the action of the energy storage component and impacts with the sliding seat. The sliding seat transmits the impact force to the grab bucket, thereby realizing the impact on the grab bucket. The soil attached to the grab bucket is cleaned by the impact method, so that the soil in the grab bucket can be cleaned in time, preventing the soil from adhering to the inner wall of the grab bucket and causing the capacity of the grab bucket to become smaller. In addition, it also prevents the soil from adhering in the grab bucket and causing energy waste.
[0018] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The following will refer to Figures 1 - 6 for a further detailed description of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments and descriptions thereof of the utility model are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:
[0020] Figure 1 is a schematic diagram of the overall structure of a grab bucket of a grooving machine according to an embodiment of the utility model;
[0021] Figure 2 is a schematic diagram of the internal structure of a striking mechanism in a grab bucket of a grooving machine according to an embodiment of the utility model;
[0022] Figure 3 is Figure 2 an enlarged view of part A in
[0023] Figure 4 is a schematic diagram of the overall structure of a grab bucket of a grooving machine when a locking assembly is unlocked according to an embodiment of the utility model;
[0024] Figure 5 is a schematic diagram of the internal structure of a striking mechanism in a grab bucket of a grooving machine according to another embodiment of the utility model;
[0025] Figure 6 is a schematic diagram of the overall structure of a grab bucket of a grooving machine from another perspective according to an embodiment of the utility model.
[0026] Among them, 1. frame body; 2. linear drive mechanism; 3. grab bucket; 31. ventilation hole; 4. striking mechanism; 41. fixed seat; 411. accommodating groove; 412. second baffle; 42. sliding seat; 421. sliding groove; 422. first baffle; 423. third wear-resistant pad; 43. energy storage assembly; 431. cylinder body; 4311. air compression groove; 432. plunger; 44. striking assembly; 441. striking block; 442. first wear-resistant pad; 443. second wear-resistant pad; 45. locking assembly; 451. hook; 452. unlocking rod; 453. elastic member. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] For the convenience of understanding the utility model, the utility model will be described more comprehensively below, and preferred embodiments of the utility model are given. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the utility model more thorough and comprehensive.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit this utility model.
[0029] Embodiment:
[0030] See Figures 1 - 6 , this embodiment provides a grab bucket of a grooving machine, which includes a frame body 1, a linear drive mechanism 2 and a grab bucket 3. The grab bucket 3 is hinged to the bottom of the frame body 1. The fixed end of the linear drive mechanism 2 is connected to the frame body 1, and the drive end of the linear drive is hinged to the grab bucket 3 through a connecting rod. Two grab buckets 3 are arranged, and the two grab buckets 3 are arranged facing each other. It further includes a striking mechanism 4. The striking mechanism 4 is arranged on the frame body 1 and is arranged corresponding to the bottom of the grab bucket 3. The striking mechanism 4 includes a fixed seat 41, a sliding seat 42, an energy storage assembly 43, a striking assembly 44 and a locking assembly 45. The fixed seat 41 is fixedly connected to the frame body 1. An accommodation groove 411 is arranged in the fixed seat 41. The first end of the sliding seat 42 is slidably connected in the accommodation groove 411, and the second end of the sliding seat 42 extends out of the fixed seat 41. The striking assembly 44 is slidably connected to the sliding seat 42. The locking assembly 45 is arranged on the sliding seat 42 and is used to limit the striking assembly 44. The energy storage assembly 43 is arranged in the accommodation groove 411, and one end of the energy storage assembly 43 is fixedly connected to the inner wall of the fixed seat 41, and the other end of the energy storage assembly 43 is fixedly connected to the striking assembly 44.
[0031] Specifically, the linear drive mechanism 2 adopts a hydraulic cylinder. The cylinder body end of the hydraulic cylinder is hinged to the frame body 1, and the piston rod end of the hydraulic cylinder is hinged to the grab bucket 3 through a connecting rod. Two grab buckets 3 and two connecting rods are arranged. The two grab buckets 3 are arranged oppositely. The two connecting rods are driven by the hydraulic cylinder to drive the two grab buckets 3 to rotate, so that the two grab buckets 3 are opened or closed.
[0032] Understandably, when it is necessary to unload the soil in the grab bucket of the grooving machine, the piston rod is driven by the hydraulic cylinder to move upward, and the grab bucket 3 is driven by the connecting rod to rotate upward around the frame body 1, so that the grab bucket 3 slowly opens, and the soil in the grab bucket 3 is unloaded. However, there may be a situation where some soil adheres to the inner wall of the grab bucket 3. During the upward rotation of the grab bucket 3, the bottom of the grab bucket 3 will abut against the sliding seat 42 and drive the sliding seat 42 to move upward. At this time, the locking mechanism plays a locking role, so that the sliding seat 42 drives the striking component 44 to move upward at the same time and compresses the energy storage mechanism. The energy storage mechanism stores energy. When the opening of the grab bucket 3 reaches the set position, the locking mechanism acts to unlock between the striking component 44 and the sliding seat 42. The striking component 44 moves in the reverse direction under the action of the energy storage component 43 and impacts the sliding seat 42. The sliding seat 42 transmits the impact force to the grab bucket 3, thereby realizing the impact on the grab bucket 3, and cleaning the soil attached to the grab bucket 3 by means of impact, so that the soil in the grab bucket 3 can be cleaned in time, preventing the soil from adhering to the inner wall of the grab bucket 3 and causing the capacity of the grab bucket 3 to become smaller. In addition, it also prevents the soil from adhering in the grab bucket 3 and causing energy waste.
[0033] Furthermore, the locking component 45 includes a hook 451, an unlocking rod 452 and an elastic member 453. The hook 451 is hinged on the sliding seat 42. The unlocking rod 452 is fixedly connected to the inner wall of the fixed seat 41, and the unlocking rod 452 is provided with an inclined surface, and the inclined surface is arranged at one end of the unlocking rod 452 close to the hook 451. One end of the elastic member 453 is connected to the sliding seat 42, and the other end of the elastic member 453 is connected to the hook 451.
[0034] Understandably, during the process when the grab bucket 3 contacts the sliding seat 42 and drives the sliding seat 42 to move upward, the hook 451 moves upward with the sliding seat 42 and approaches the unlocking lever 452. The hook 451 is in a hanging and locking state with respect to the striking component 44. When the grab bucket 3 continues to rotate and drives the sliding seat 42, the striking component 44 and the hook 451 to continue moving upward, the hook 451 contacts the locking lever and abuts against the inclined surface of the locking lever. As the grab bucket 3 continues to rotate, the hook 451 rotates under the action of the inclined surface, so that the hook 451 disengages from the striking component 44. At this time, the striking component 44 is unlocked. The striking component 44 moves downward under the action of the energy storage component 43 and impacts the sliding rod. The impact force is transmitted to the grab bucket 3 through the sliding rod, so as to clean the soil attached to the grab bucket 3 by means of impact. In this embodiment, the elastic member 453 is arranged on one side of the hinge point close to the unlocking lever 452. At this time, the elastic member 453 is stretched. Then the grab bucket 3 rotates back, and the sliding seat 42, the striking component 44 and the hook 451 move downward together. The hook 451 disengages from the locking lever and resets under the action of the elastic member 453. When the striking component 44 moves downward a certain distance, it stops moving under the action of the energy storage component 43. At this time, the sliding seat 42 and the hook 451 still move downward until the hook 451 moves to the lower part of the striking component 44, so that the hook 451 re-hangs and locks the striking component 44, and the hook 451 and the striking component 44 are reset under the action of gravity, preparing for the next operation.
[0035] Specifically, in this embodiment, the elastic member 453 is arranged on one side of the hinge point close to the unlocking lever 452, and the elastic member 453 is a tension spring; in other embodiments, the elastic member 453 can also be arranged on one side of the hinge point far from the unlocking lever 452, and the elastic member 453 is a compression spring.
[0036] As a preferred embodiment, the energy storage component 43 includes a cylinder body 431 and a plunger 432. The cylinder body 431 is fixedly connected to the inner wall of the fixed seat 41. An air compression groove 4311 is arranged in the cylinder body 431. One end of the plunger 432 is slidably connected in the air compression groove 4311, and the other end of the plunger 432 extends out of the air compression groove 4311 and is fixedly connected to the striking component 44.
[0037] Understandably, there is a sealed connection between the cylinder body 431 and the plunger 432, and there is a cavity between the cylinder body 431 and the plunger 432. When the grab 3 grabs upward and drives the sliding seat 42 and the striking component 44 to move upward, the striking component 44 drives the plunger 432 to move upward, compresses the gas in the cavity, reduces the volume in the cavity, and increases the gas pressure in the cavity. When the unlocking lever 452 pushes the hook 451 to rotate and unlock, the compressed gas pushes the plunger 432 and the striking component 44 to move downward and impact the sliding seat 42, and resets the plunger 432, realizing the energy storage and energy release of the energy storage component 43.
[0038] As another preferred embodiment, the energy storage component 43 is a spring.
[0039] Understandably, when the striking component 44 moves upward, the spring is compressed, causing the spring to store energy; when the striking component 44 is unlocked, it moves downward under the elastic force of the spring, and the spring releases energy. Thus, the energy storage and energy release of the energy storage component 43 are realized.
[0040] Further, the striking component 44 includes a striking block 441. A chute 421 is provided on the sliding seat 42. The striking block 441 is arranged in the chute 421. The hook 451 is arranged on one side of the chute 421, and the head of the hook 451 is hooked and locked with the striking block 441.
[0041] Understandably, when the hook 451 is unlocked, the striking block 441 slides downward along the chute 421 and impacts the bottom of the chute 421. When resetting, the striking block 441 is limited by the pulling force of the energy storage component 43. The sliding seat 42 and the hook 451 continue to move downward, so that the striking block 441 moves upward relative to the chute 421, and the hook 451 hooks and locks the striking block 441 again.
[0042] Further, the striking component 44 further includes a first wear-resistant pad 442 and a second wear-resistant pad 443. The first wear-resistant pad 442 is fixed to the bottom of the striking block 441. The second wear-resistant pad 443 is fixedly connected in the chute 421 on the sliding seat 42, and the second wear-resistant pad 443 is arranged corresponding to the first wear-resistant pad 442.
[0043] Understandably, both the first wear-resistant pad 442 and the second wear-resistant pad 443 are made of high-strength materials (specifically, high-strength means that the strength of the material is 500 MPa or more), such as made of 45Mn and hardened to increase hardness. Through the arrangement of the first wear-resistant pad 442, when the striking component 44 impacts the sliding seat 42, the first wear-resistant pad 442 protects the striking block 441, preventing the striking block 441 from being plastically deformed and damaged during the impact, and improving the service life of the first wear-resistant pad 442 and the striking block 441. Similarly, the second wear-resistant pad 443 is used to protect the sliding seat 42.
[0044] Furthermore, a third wear-resistant pad 423 is arranged on the sliding seat 42, and the third wear-resistant pad 423 is arranged at one end of the sliding seat 42 close to the grab bucket 3.
[0045] Understandably, the third wear-resistant pad 423 is also made of high-strength steel. The bottom of the sliding seat 42 is protected by the third wear-resistant pad 423, improving the service life of the sliding seat 42.
[0046] Furthermore, a first retaining edge 422 is arranged on the upper part of the sliding seat 42. The first retaining edge 422 is arranged on the top of the sliding seat 42 and protrudes outward. A second retaining edge 412 is arranged on the fixed seat 41. The second retaining edge 412 is arranged at the notch of the accommodating groove 411 and extends into the accommodating groove 411.
[0047] Understandably, when the striking mechanism 4 is in a non-working state, the sliding seat 42 abuts against the second retaining edge 412 on the fixed seat 41 through the first retaining edge 422, preventing the sliding seat 42 from completely sliding out of the accommodating groove 411.
[0048] Furthermore, the striking mechanisms 4 and the grab buckets 3 are arranged in one-to-one correspondence. Understandably, the two grab buckets 3 are respectively struck by the two striking mechanisms 4, so that both grab buckets 3 can be well unloaded. Of course, in some embodiments, each grab bucket 3 can also correspond to multiple striking mechanisms 4 to make the unloading in the grab bucket 3 more sufficient.
[0049] Furthermore, a ventilation hole 31 is arranged at the bottom of the grab bucket 3. Understandably, when the grab bucket 3 is unloading, air enters through the ventilation hole 31 at the bottom of the grab bucket 3, preventing a vacuum from being formed inside the grab bucket 3 during unloading, which would cause the soil in the grab bucket 3 to not be quickly unloaded. By arranging the ventilation hole 31, the vacuum environment during the unloading of the grab bucket 3 is broken, so that the soil in the grab bucket 3 can be quickly unloaded.
[0050] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A grab bucket for a grooving machine, comprising a frame body (1), a linear drive mechanism (2) and a grab bucket (3). The grab bucket (3) is hinged to the bottom of the frame body (1). The fixed end of the linear drive mechanism (2) is connected to the frame body (1), and the drive end of the linear drive is hinged with the grab bucket (3) through a connecting rod. The two grab buckets (3) are arranged facing each other, and it is characterized in that: It further comprises a striking mechanism (4). The striking mechanism (4) is arranged on the frame body (1), and the striking mechanism (4) is arranged corresponding to the grab bucket (3). The striking mechanism (4) comprises a fixed seat (41), a sliding seat (42), an energy storage component (43), a striking component (44) and a locking component (45). The fixed seat (41) is fixedly connected to the frame body (1). An accommodation groove (411) is arranged in the fixed seat (41). The first end of the sliding seat (42) is slidably connected in the accommodation groove (411), and the second end of the sliding seat (42) extends out of the fixed seat (41). The striking component (44) is slidably connected to the sliding seat (42). The locking component (45) is arranged on the sliding seat (42) and is used for limiting the striking component (44). The energy storage component (43) is arranged in the accommodation groove (411), and one end of the energy storage component (43) is fixedly connected to the inner wall of the fixed seat (41), and the other end of the energy storage component (43) is fixedly connected to the striking component (44).
2. The grab bucket for a grooving machine according to claim 1, characterized in that: The locking component (45) comprises a hook (451), an unlocking rod (452) and an elastic member (453). The hook (451) is hinged to the sliding seat (42). The unlocking rod (452) is fixedly connected to the inner wall of the fixed seat (41), and an inclined surface is arranged on the unlocking rod (452). The inclined surface is arranged at one end of the unlocking rod (452) close to the hook (451). One end of the elastic member (453) is connected to the sliding seat (42), and the other end of the elastic member (453) is connected to the hook (451).
3. The grab bucket for a grooving machine according to claim 1, characterized in that: The energy storage component (43) comprises a cylinder body (431) and a plunger (432). The cylinder body (431) is fixedly connected to the inner wall of the fixed seat (41). A compressed air groove (4311) is arranged in the cylinder body (431). One end of the plunger (432) is slidably connected in the compressed air groove (4311), and the other end of the plunger (432) extends out of the compressed air groove (4311) and is fixedly connected to the striking component (44).
4. The grab bucket for a grooving machine according to claim 1, characterized in that: The energy storage component (43) is a spring.
5. The grab bucket for a grooving machine according to claim 2, characterized in that: The striking assembly (44) includes a striking block (441). A chute (421) is provided on the sliding seat (42). The striking block (441) is arranged in the chute (421). The hook (451) is arranged on one side of the chute (421). The head of the hook (451) is hooked and locked with the striking block (441).
6. The grab bucket of a trench forming machine according to claim 5, wherein: The striking assembly (44) further includes a first wear-resistant pad (442) and a second wear-resistant pad (443). The first wear-resistant pad (442) is fixed to the bottom of the striking block (441). The second wear-resistant pad (443) is fixedly connected in the chute (421) on the sliding seat (42), and the second wear-resistant pad (443) is arranged corresponding to the first wear-resistant pad (442).
7. The grab bucket of a trench forming machine according to any one of claims 1-6, wherein: A third wear-resistant pad (423) is arranged on the sliding seat (42). The third wear-resistant pad (423) is arranged at one end of the sliding seat (42) close to the grab bucket (3).
8. The grab bucket of a trench forming machine according to any one of claims 1-6, wherein: A first edge guard (422) is arranged on the upper part of the sliding seat (42). The first edge guard (422) is arranged at the top of the sliding seat (42) and protrudes outward. A second edge guard (412) is arranged on the fixed seat (41). The second edge guard (412) is arranged at the notch of the accommodating groove (411), and the second edge guard (412) extends into the accommodating groove (411).
9. The grab bucket of a trench forming machine according to any one of claims 1-6, wherein: The striking mechanism (4) is arranged corresponding to the grab bucket (3) one by one.
10. The grab bucket of a trench forming machine according to any one of claims 1-6, wherein: Vent holes (31) are arranged at the bottom of the grab bucket (3).