Holding fork and engineering machinery

Abstract

The utility model belongs to the technical field of engineering machinery, and discloses an embracing fork and engineering machinery, the embracing fork comprises a main body, at least two upper forks and at least two lower forks, the main body is provided with an adjusting frame, the adjusting frame can move relative to the main body along a first direction, the at least two upper forks are arranged on the main body along the first direction at intervals and located above the adjusting frame, and the lower forks are located above the adjusting frame. The upper fork is hinged to the main body, the at least two lower forks are arranged on the adjusting frame at intervals in the first direction, and the lower forks can move relative to the adjusting frame in the first direction; the engineering machinery comprises the embracing fork and further comprises a movable arm, and the main body is connected to the movable arm. According to the embracing fork and the engineering machinery, the lower forks can move relative to the upper fork, switching between an opposite jacking mode and a staggered mode can be achieved, lateral movement of the multiple lower forks can be achieved to transport loaded materials, manpower and carrying participation of a loader are saved to a certain degree, manpower and material resources are saved, and functionality is high.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a forklift and engineering machinery. Background Technology

[0002] In construction machinery, a clamping fork is often installed at the end of the boom. The clamping fork consists of an upper fork and a lower fork, connected by a pin and driven by a hydraulic cylinder. The upper fork can rotate around the pin, thus working together with the lower fork to clamp the material.

[0003] In existing technologies, the upper and lower forks of a clamping fork have two modes: an opposing mode and a staggered mode. In the opposing mode, the upper and lower forks are directly opposite each other. When the upper fork swings downward, its front end will collide with the front end of the lower fork, forming an opposing posture. In the staggered mode, the upper and lower forks are staggered. When the upper fork swings downward, it will not collide with the front end of the lower fork, but will continue to swing downward at a certain angle after being offset from the lower fork. Although the current clamping fork satisfies the function of adjusting the relative position between the upper and lower forks, it still requires a large amount of manpower and handling machinery such as loaders to cooperate when clamping and transporting materials, resulting in high labor costs. Its functionality urgently needs further exploration. Utility Model Content

[0004] The purpose of this utility model is to provide a forklift and engineering machinery, in which the lower fork can move relative to the upper fork, enabling switching between top-mounted and offset modes, and also enabling lateral movement of multiple lower forks to transport loaded materials. This saves manpower and loader handling to a certain extent, saving manpower and material resources, and is highly functional.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A forked gripper includes a main body, at least two upper forks, and at least two lower forks; wherein,

[0007] The main body is provided with an adjustment frame, which is capable of moving relative to the main body along a first direction;

[0008] At least two of the upper forks are spaced apart along a first direction on the main body and located above the adjustment frame, and the upper forks are hinged to the main body;

[0009] At least two of the lower forks are spaced apart on the adjusting frame along a first direction, and the lower forks are movable relative to the adjusting frame along the first direction.

[0010] Preferably, it also includes:

[0011] A first adjustment drive is disposed between the main body and the adjustment frame, and the first adjustment drive is used to drive the adjustment frame to move relative to the main body along a first direction;

[0012] A second adjustment drive is disposed between the lower fork and the adjustment frame. The second adjustment drive is used to drive the lower fork to move relative to the adjustment frame in a first direction.

[0013] Preferably, the first adjustment drive component includes a first drive cylinder, wherein one of the cylinder body and the cylinder rod of the first drive cylinder is connected to the main body, and the other is connected to the adjustment frame;

[0014] The second adjustment drive includes a plurality of second drive cylinders that correspond one-to-one with the lower fork. One of the cylinder body and the cylinder rod of the second drive cylinder is connected to the adjustment frame, and the other is connected to the corresponding lower fork.

[0015] Preferably, the adjusting frame extends along a first direction and is provided with a guide shaft, a connecting block is slidably provided on the guide shaft, the lower fork is fixed on the connecting block, the cylinder rod of the second drive cylinder is connected to the connecting block, and the cylinder body of the second drive cylinder is connected to the adjusting frame.

[0016] Preferably, the connecting block is provided with a connecting part, the cylinder rod of the second drive cylinder is fixedly connected to the connecting part, the connecting part is provided with a guide hole, and the guide shaft passes through the guide hole and is slidably connected to the guide hole.

[0017] Preferably, the adjusting frame is provided with limiting plates at both ends opposite to each other along the first direction, and the guide shaft is disposed between the two limiting plates. The limiting plates are used to slide and limit the connecting block.

[0018] Preferably, the lower fork is provided with a sliding groove, and the adjusting frame extends along the first direction and is provided with a sliding frame portion, and the sliding groove is slidably connected to the sliding frame portion.

[0019] Preferably, the device further includes a swing drive member disposed between the main body and the upper fork, the swing drive member being used to drive the upper fork to swing relative to the main body.

[0020] Preferably, the swing drive includes a plurality of third drive cylinders corresponding one-to-one with the upper fork, wherein one of the cylinder body and the cylinder rod of the third drive cylinder is hinged to the main body, and the other is hinged to the corresponding upper fork.

[0021] An engineering machine includes a forklift as described in any of the above claims, and also includes a boom, the main body being connected to the boom.

[0022] Beneficial effects:

[0023] The fork-like device provided by this utility model has an adjustable frame mounted on the main body, capable of moving relative to the main body along a first direction. At least two upper forks are spaced apart on the main body along the first direction and are hinged to the main body. At least two lower forks are spaced apart on the adjustable frame along the first direction and can move relative to the adjustable frame along the first direction. When the number of upper and lower forks is the same, that is, the upper and lower forks are arranged in a one-to-one correspondence. The first direction can be optionally set to a horizontal direction. The position of the lower forks relative to the upper forks is adjusted by moving the lower forks relative to the adjustable frame, allowing the upper and lower forks to switch between a top-to-bottom mode and a staggered mode. Specifically, when the adjustable frame moves relative to the main body along the first direction, it drives the lower forks mounted on the adjustable frame to move together. When material is placed on the lower forks and the lower and upper forks are not in a clamping state, the material supported on the lower forks can be conveyed a distance along the first direction by the movement of the adjustable frame, saving manpower and loader handling to a certain extent, saving manpower and material resources, and possessing strong functionality.

[0024] The engineering machinery provided by this utility model applies the aforementioned fork, and the lower fork can move relative to the upper fork. It can switch between top-to-bottom mode and offset mode, and can also realize the lateral movement of multiple lower forks to transport the loaded materials. To a certain extent, it saves manpower and the handling participation of the loader, saves manpower and material resources, and has strong functionality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure provided by this utility model, showing the upper and lower forks of the fork in a top-down state;

[0026] Figure 2 This is a schematic diagram of the structure provided by this utility model, showing the upper and lower forks of the fork in a misaligned state.

[0027] Figure 3 This is a schematic diagram of the structure of the fork-adjusting bracket that moves relative to the main body provided by this utility model;

[0028] Figure 4 This is a schematic diagram of the adjustment bracket part provided by this utility model from one perspective;

[0029] Figure 5 This is a schematic diagram of the adjustment bracket part provided by this utility model from another perspective;

[0030] Figure 6 This is a partial structural schematic diagram of the adjustment frame provided by this utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the connecting block provided by this utility model;

[0032] Figure 8 This is a schematic diagram of the structure of the second drive cylinder provided by this utility model;

[0033] Figure 9 This is a schematic diagram of the upper fork structure provided by this utility model;

[0034] Figure 10 This is a schematic diagram of the lower fork structure provided by this utility model;

[0035] Figure 11 This is a schematic diagram of the main body provided by this utility model;

[0036] Figure 12 This is a schematic diagram of the fork structure provided in another embodiment of the present invention;

[0037] Figure 13 This is a schematic diagram of the fork structure provided in another embodiment of the present invention.

[0038] In the picture:

[0039] 1. Main body; 11. Fixing frame; 12. Third hinge hole;

[0040] 2. Upper fork; 21. First hinge hole; 22. Second hinge hole;

[0041] 3. Lower fork; 31. Sliding groove;

[0042] 4. Adjusting frame; 41. Guide shaft; 42. Connecting block; 4201. Connecting hole; 421. Connecting part; 422. Guide hole; 423. Fixing block; 424. Clamping part; 425. Third mounting hole; 43. Limiting plate; 431. Second connecting ear; 432. Second mounting hole; 433. Through hole; 44. Sliding frame part; 441. First connecting ear; 442. First mounting hole;

[0043] 51. First drive cylinder; 52. Second drive cylinder; 53. Third drive cylinder;

[0044] 6. Bucket. Detailed Implementation

[0045] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0046] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0049] This embodiment provides a clamping fork. (Refer to...) Figures 1 to 11 As shown, the fork includes a main body 1, at least two upper forks 2, and at least two lower forks 3. The main body 1 is provided with an adjustment frame 4, which can move relative to the main body 1 along a first direction; the at least two upper forks 2 are spaced apart on the main body 1 along the first direction and located above the adjustment frame 4, and the upper forks 2 are hinged to the main body 1; the at least two lower forks 3 are spaced apart on the adjustment frame 4 along the first direction, and the lower forks 3 can move relative to the adjustment frame 4 along the first direction.

[0050] In this embodiment, the number of upper forks 2 and lower forks 3 is set to be equal.

[0051] In this embodiment, the first direction is set to the horizontal direction.

[0052] In this embodiment, the number of upper forks 2 and lower forks 3 is preferably two each.

[0053] In this embodiment, the adjusting frame 4 is mounted on the main body 1 and can move relative to the main body 1 along a first direction. At least two upper forks 2 are spaced apart on the main body 1 along the first direction and are hinged to the main body 1. At least two lower forks 3 are spaced apart on the adjusting frame 4 along the first direction and can move relative to the adjusting frame 4 along the first direction. When the number of upper forks 2 and lower forks 3 is the same, that is, the upper forks 2 and lower forks 3 are arranged in a one-to-one correspondence. The first direction can be optionally set to a horizontal direction. The position of the lower forks 3 relative to the upper forks 2 is adjusted by moving the lower forks 3 relative to the adjusting frame 4, so that the upper forks 2 and lower forks 3 can switch between an aligned mode and a misaligned mode. Specifically, when the adjusting frame 4 moves relative to the main body 1 in the first direction, it drives the lower fork 3 set on the adjusting frame 4 to move together. When the material is placed on the lower fork 3 and the lower fork 3 and the upper fork 2 are not in a clamping state, the material supported on the lower fork 3 can be transported along the first direction for one distance by the movement of the adjusting frame 4. This saves manpower and the handling of the loader to a certain extent, saves manpower and material resources, and has strong functionality.

[0054] Specifically, the upper fork 2 is provided with a first hinge hole 21, and the main body 1 is provided with a third hinge hole 12. The first hinge hole 21 and the third hinge hole 12 are hinged together by a first hinge shaft, thereby realizing the up-and-down swing of the upper fork 2 relative to the main body 1.

[0055] Specifically, the lower fork 3 is provided with a sliding groove 31, and the adjusting frame 4 extends along the first direction and is provided with a sliding frame part 44, with the sliding groove 31 slidably connected to the sliding frame part 44. Through the sliding engagement between the sliding groove 31 and the sliding frame part 44, the lower fork 3 can slide strictly along the first direction, ensuring the reliability and stability of the lower fork 3 position adjustment.

[0056] In this embodiment, a fixed frame 11 is fixedly provided on the main body 1, and an adjustment frame 4 is provided on the fixed frame 11 and can be slidably connected to the fixed frame 11 along the first direction.

[0057] In this embodiment, the fork further includes a first adjustment drive and a second adjustment drive. The first adjustment drive is located between the main body 1 and the adjustment frame 4, and is used to drive the adjustment frame 4 to move relative to the main body 1 along a first direction. The second adjustment drive is located between the lower fork 3 and the adjustment frame 4, and is used to drive the lower fork 3 to move relative to the adjustment frame 4 along the first direction. In this embodiment, by providing the first and second adjustment drives, the positions of the adjustment frame 4 and the lower fork 3 can be automatically adjusted respectively, further improving the overall automation level.

[0058] For example, the first adjustment drive component includes a first drive cylinder 51, one of which, the cylinder body and the cylinder rod, are connected to the main body 1, and the other is connected to the adjustment frame 4. Specifically, the cylinder body of the first drive cylinder 51 is fixedly connected to the main body 1, and the cylinder rod of the first drive cylinder 51 is fixedly connected to the adjustment frame 4. The cylinder rod of the first drive cylinder 51 extends and retracts relative to the cylinder body, which can drive the adjustment frame 4 to move relative to the main body 1 in a first direction, thereby realizing the position adjustment of the adjustment frame 4.

[0059] Specifically, the adjustment frame 4 is provided with a first connecting ear 441, the first connecting ear 441 has a first mounting hole 442, and the end of the cylinder rod of the first drive cylinder 51 is fixedly connected to the first mounting hole 442 through a first fixed shaft.

[0060] For example, the second adjustment drive includes a plurality of second drive cylinders 52 corresponding one-to-one with the lower fork 3. One of the cylinder body and the cylinder rod of the second drive cylinder 52 is connected to the adjustment frame 4, and the other is connected to the corresponding lower fork 3. Specifically, the cylinder body of the second drive cylinder 52 is fixedly connected to the adjustment frame 4, and the cylinder rod of the second drive cylinder 52 is fixedly connected to the corresponding lower fork 3. The cylinder rod of the second drive cylinder 52 extends and retracts relative to the cylinder body, driving the lower fork 3 to move relative to the adjustment frame 4 along a first direction, thereby adjusting the position of the lower fork 3. Specifically, the adjustment frame 4 is provided with a second connecting ear 431, and the second connecting ear 431 has a second mounting hole 432. The end of the cylinder body of the second drive cylinder 52 is fixedly connected to the second mounting hole 432 via a second fixed shaft.

[0061] In some other alternative embodiments, the first adjustment drive unit may be configured as a first drive cylinder 51 or a linear servo module whose position can be adjusted along the first direction; the second adjustment drive unit may be configured as a second drive cylinder 52 or a linear servo module whose position can be adjusted along the first direction. No further limitations are imposed here.

[0062] In this embodiment, the adjusting frame 4 extends along the first direction and is provided with a guide shaft 41. A connecting block 42 is slidably disposed on the guide shaft 41. The lower fork 3 is fixed to the connecting block 42. The cylinder rod of the second drive cylinder 52 is connected to the connecting block 42, and the cylinder body of the second drive cylinder 52 is connected to the adjusting frame 4. Specifically, the connecting block 42 is slidably connected to the guide shaft 41, and the lower fork 3 is fixed to the connecting block 42. With this arrangement, the driving of the second drive cylinder 52 ensures that the connecting block 42 can be slidably adjusted along the first direction, ensuring that the position adjustment of the lower fork 3 is reliable and stable.

[0063] Specifically, the connecting block 42 has a clamping part 424 on one side and a fixing block 423 detachably provided on the other side. When the connecting block 42 needs to fix the lower fork 3, the lower fork 3 is inserted into the connecting block 42, and then the fixing block 423 is installed. The fixing block 423 and the clamping part 424 work together to reliably and effectively fix and clamp the lower fork 3. Specifically, the connecting block 42 has a connecting hole 4201. A screw fastener passes through the fixing block 423 and is threaded into the connecting hole 4201, thereby fixing the fixing block 423. Optionally, the screw fastener can be a bolt or a screw. Specifically, the fixing block 423 has a through hole (not shown) for the screw fastener to pass through. The through hole is a slotted hole.

[0064] Specifically, the connecting block 42 is provided with a connecting part 421, the cylinder rod of the second drive cylinder 52 is fixedly connected to the connecting part 421, the connecting part 421 is provided with a guide hole 422, and the guide shaft 41 passes through the guide hole 422 and is slidably connected to the guide hole 422. Specifically, the connecting part 421 is provided with a third mounting hole 425, the cylinder rod of the second drive cylinder 52 passes through the third mounting hole 425 and is fixedly connected to the third mounting hole 425.

[0065] Furthermore, the adjusting frame 4 is provided with limiting plates 43 at both opposite ends along the first direction, and the guide shaft 41 is located between the two limiting plates 43. The limiting plates 43 are used to limit the sliding movement of the connecting block 42. By setting the limiting plates 43, the opposite ends of the guide shaft 41 can be stopped, preventing the connecting block 42 from slipping off the guide shaft 41 during sliding. Specifically, the limiting plates 43 are provided with through holes 433, and the corresponding ends of the guide shaft 41 pass through the through holes 433 and are fixedly connected to the through holes 433.

[0066] In this embodiment, each limiting plate 43 is provided with a first connecting ear 441.

[0067] In this embodiment, the fork also includes a swing drive component, which is located between the main body 1 and the upper fork 2. The swing drive component is used to drive the upper fork 2 to swing relative to the main body 1. Specifically, by setting the swing drive component, the automatic control of the swing of the upper fork 2 can be realized, further improving the overall level of automation.

[0068] For example, the swing drive includes multiple third drive cylinders 53 corresponding one-to-one with the upper fork 2. One of the cylinder body and cylinder rod of the third drive cylinder 53 is hinged to the main body 1, and the other is hinged to the corresponding upper fork 2. Specifically, the cylinder body of the third drive cylinder 53 is hinged to the main body 1, and the cylinder rod of the third drive cylinder 53 is hinged to the upper fork 2. The cylinder rod of the third drive cylinder 53 extends and retracts relative to the cylinder body, enabling flexible swinging of the upper fork 2. Specifically, the upper fork 2 has a second hinge hole 22, and the second hinge hole 22 is hinged to the cylinder rod of the third drive cylinder 53 via a second hinge shaft.

[0069] In some alternative embodiments, the swing drive can be configured as a third drive cylinder 53 or a drive motor. Specifically, the drive motor is positioned between the main body 1 and the upper fork 2, with its housing fixed to the main body 1 and its output shaft connected to the upper fork 2. By rotating the output shaft of the drive motor relative to the housing, the swing control of the upper fork 2 relative to the main body 1 can also be achieved.

[0070] Reference Figure 12 As shown, the lower fork 3 can be adapted in shape to meet actual needs. The arc-shaped lower fork 3 can be changed to a flat fork structure, which is more suitable for carrying materials and achieving reliable support for the materials.

[0071] Reference Figure 13 As shown, in addition to the lower fork 3, the adjusting frame 4 can also be equipped with a bucket 6. Specifically, the bucket 6 and the upper fork 2 together form a fork-holding bucket structure. The bucket 6 is fixedly connected to one of the connecting blocks 42, allowing the bucket 6 to be adjusted in position along the first direction, further increasing its applicability and compatibility.

[0072] This embodiment also provides an engineering machinery. The engineering machinery includes the aforementioned forklift and a boom (not shown), with the main body 1 connected to the boom. By installing the forklift on the engineering machinery, it achieves the beneficial effects described above, namely, the lower fork 3 can move relative to the upper fork 2, enabling switching between top-to-bottom and offset modes, and allowing multiple lower forks 3 to move laterally to transport the loaded materials. This saves manpower and the loader's handling involvement to a certain extent, conserving manpower and resources, and offering strong functionality.

[0073] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A clamp, characterized in that The utility model relates to a kind of adjustable frame, including main body (1), at least two upper fork (2) and at least two lower fork (3);Wherein, The main body (1) is equipped with adjusting frame (4), adjusting frame (4) can be moved along the first direction relative to the main body (1); At least two upper fork (2) is spaced apart on the main body (1) and is located above adjusting frame (4) along the first direction, and upper fork (2) is hingedly arranged with the main body (1); At least two lower fork (3) is spaced apart on adjusting frame (4) along the first direction, and lower fork (3) can be moved along the first direction relative to adjusting frame (4).

2. The clamp as claimed in claim 1, characterized in that Further comprising: First adjusting drive element is equipped between the main body (1) and adjusting frame (4), and the first adjusting drive element is used to drive adjusting frame (4) to move along the first direction relative to the main body (1); Second adjusting drive element is equipped between lower fork (3) and adjusting frame (4), and the second adjusting drive element is used to drive lower fork (3) to move along the first direction relative to adjusting frame (4).

3. The tong according to claim 2, wherein The first adjusting drive element includes first drive cylinder (51), and one of the cylinder body and cylinder rod of first drive cylinder (51) is connected with the main body (1), and the other is connected with adjusting frame (4); The second adjusting drive element includes a plurality of second drive cylinders (52) corresponding to lower fork (3), one of the cylinder body and cylinder rod of second drive cylinder (52) is connected with adjusting frame (4), and the other is connected with corresponding lower fork (3).

4. The clamp as claimed in claim 3, characterized in that Adjusting frame (4) is provided with guide shaft (41) along the first direction, and connecting block (42) is slidably arranged on guide shaft (41), lower fork (3) is fixed on connecting block (42), cylinder rod of second drive cylinder (52) is connected with connecting block (42), and cylinder body of second drive cylinder (52) is connected with adjusting frame (4).

5. The clamp of claim 4, wherein, Connecting block (42) is provided with connecting portion (421), cylinder rod of second drive cylinder (52) is fixedly connected with connecting portion (421), connecting portion (421) is provided with guide hole (422), guide shaft (41) passes through guide hole (422) and is slidably connected with guide hole (422).

6. The clamp of claim 4 wherein, Limiting plate (43) is arranged at opposite ends of adjusting frame (4) along the first direction, guide shaft (41) is arranged between two limiting plates (43), and limiting plate (43) is used for sliding limiting connecting block (42).

7. The clamp of claim 1 wherein, Lower fork (3) is provided with sliding groove (31), and sliding frame portion (44) is arranged on adjusting frame (4) along the first direction, and sliding groove (31) is slidably connected with sliding frame portion (44).

8. The clamp of claim 1 wherein, Further comprising swing drive element, the swing drive element is equipped between the main body (1) and the upper fork (2), and the swing drive element is used to drive the upper fork (2) to swing relative to the main body (1).

9. The clamp as claimed in claim 8, characterized in that The swing driving member comprises a plurality of third driving cylinders (53) corresponding to the upper prongs (2), one of the cylinder body and the cylinder rod of the third driving cylinder (53) is hinged to the main body (1), and the other is hinged to the corresponding upper prong (2).

10. A working machine, characterized in that The embrace prong comprising the embrace prong according to any one of claims 1-9, further comprising a movable arm, and the main body (1) is connected to the movable arm.

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