Shell structure of log grapple

Abstract

The utility model relates to the technical field of log grapple, in particular to a shell structure of a log grapple, which comprises a top plate. The two cover plates are oppositely connected to the two sides of the top plate, each cover plate comprises a main plate and two side plates arranged on the two sides of the main plate, and the main plate and the two side plates are connected with the three side walls of the top plate respectively; the middle supporting plate is connected between the two cover plates and located below the top plate. According to the shell structure of the log grapple, wrapping type connection of the top plate is achieved through the main plate and the side plates, the connection area is increased, the overall connection strength of the top plate and the cover plate is further improved, meanwhile, the middle supporting plate is matched with the top plate and the cover plate to achieve a closed loop, and the overall strength stability is further improved; meanwhile, the top plate and the cover plate are combined, so that the weight can be greatly reduced, and the cost is reduced on the premise of bearing high load and large impact.

Description

Technical Field

[0001] The utility model relates to the technical field of grapples, in particular to a housing structure of a grapple. Background Art

[0002] A grapple is one of the working devices of an excavator. The grapple is a fitting of the working device of the excavator that is independently designed, developed, and manufactured according to the specific working requirements of the excavator.

[0003] Grapples are divided into mechanical grapples and rotary grapples. The mechanical grapple can be used without modifying the excavator pipeline and hydraulic system, so the cost is relatively low; the rotary grapple needs to modify the excavator pipeline and hydraulic system to meet the requirement of 360-degree rotation, so it is convenient and practical, but the cost is relatively high.

[0004] Generally, the top of the existing grapple housing adopts a whole C-shaped steel plate, but this structure is often relatively thick, so the weight is relatively large, resulting in a relatively high cost. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is: in order to solve the technical problems in the prior art, the utility model provides a housing structure of a grapple.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a housing structure of a grapple, including a top plate; two cover plates, which are oppositely connected to both sides of the top plate. The cover plate includes a main board and two side boards arranged on both sides of the main board. The main board and the two side boards are respectively connected to three side walls of the top plate; an intermediate support plate, which is connected between the two cover plates and is located below the top plate.

[0007] The housing structure of the grapple of the utility model realizes the wrapped connection of the top plate through the main board and the side board, increases the connection area, and further increases the overall connection strength of the top plate and the cover plate. At the same time, the intermediate support plate cooperates with the top plate and the cover plate to form a closed loop, further increasing the overall strength stability. At the same time, because the combination of the top plate and the cover plate is adopted, the weight can be greatly reduced and the cost can be reduced.

[0008] Further, the main board and the side board are formed by bending.

[0009] Further, a reinforcing rib is connected between the top plate and the cover plate, and the reinforcing rib is triangular.

[0010] Further, the included angle between the top plate and the main board is an obtuse angle, and the reinforcing rib is an obtuse triangle.

[0011] Further, the surface where the top plate and the side board are connected is inclined relative to the surface where the top plate and the main board are connected, and the included angle is an obtuse angle.

[0012] Further, a grab tooth positioning plate is connected to the middle support plate. There are two grab tooth positioning plates, and both are located between the two cover plates.

[0013] Further, a reinforcing plate is connected to the cover plate. There are two reinforcing plates, and the two reinforcing plates are respectively located on the outer sides of the two cover plates.

[0014] Further, a welding retaining ring is connected to the cover plate, and the welding retaining ring is connected to the reinforcing plate on the same side.

[0015] Further, a first hole is provided on the welding retaining ring, and a second hole is provided on the grab tooth positioning plate. The first hole and the second hole are coaxially arranged.

[0016] Further, weight-reducing grooves are provided on both the reinforcing plate and the middle support plate.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. The main board and the side board are used to achieve a wrapped connection to the top board, increasing the connection area, thereby increasing the overall connection strength between the top board and the cover plate. At the same time, the middle support plate cooperates with the top board and the cover plate to form a closed loop, further increasing the overall strength and stability. At the same time, because the combination of the top board and the cover plate is adopted, the weight can be greatly reduced and the cost can be lowered;

[0019] 2. The cover plate and the top board are further strengthened by the reinforcing plate and the welding retaining ring, improving the overall strength and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present utility model will be further described below with reference to the drawings and embodiments.

[0021] Figure 1 It is a schematic structural diagram showing the overall structure of the housing structure of a grapple in the present utility model.

[0022] Figure 2 It is a rear view schematic diagram showing the overall structure of the housing structure of the grapple in the present utility model.

[0023] Figure 3 It is a top view schematic diagram showing the overall structure of the housing structure of the grapple in the present utility model.

[0024] In the figure: 1, top board; 2, cover plate; 21, main board; 22, side board; 3, middle support plate; 4, reinforcing plate; 5, grab tooth positioning plate; 51, second hole; 52, support plate; 6, welding retaining ring; 61, first hole; 7, reinforcing rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] The present utility model discloses a housing structure of a grapple.

[0028] Refer to Figures 1 to 3 , a housing structure of a grapple, comprising a top plate 1, a cover plate 2 and an intermediate support plate 3. There are two cover plates 2, which are oppositely connected to both sides of the top plate 1. The cover plate 2 includes a main board 21 and two side plates 22 provided on both sides of the main board 21. The main board 21 and the two side plates 22 are respectively welded to three side walls of the top plate 1; the intermediate support plate 3 is connected between the two main boards 21 and is located below the top plate 1. The wrap-around connection of the top plate 1 is realized through the main board 21 and the side plates 22, increasing the connection area, and further increasing the overall connection strength between the top plate 1 and the cover plate 2. At the same time, the intermediate support plate 3 cooperates with the top plate 1 and the cover plate 2 to form a closed loop, further increasing the overall strength stability. At the same time, because of the combination method of the top plate 1 and the cover plate 2, the weight can be greatly reduced and the cost can be lowered.

[0029] Specifically, the main board 21 and the side panels 22 are formed by bending the cover plate 2, that is, the main board 21 and the side panels 22 are actually formed as one piece, which can ensure a higher basic strength. After the cover plate 2 is bent to form the main board 21 and the side panels 22, the bending resistance can be improved, thereby improving the overall strength of the shell.

[0030] The angle between the top plate 1 and the main board 21 is an obtuse angle, which can reduce stress concentration, increase strength, and increase the space inside the shell compared to an acute angle between the top plate 1 and the main board 21. A reinforcing rib 7 is welded between the top plate 1 and the cover plate 2, and the reinforcing rib 7 is an obtuse triangle to fit the top plate 1 and the main board 21.

[0031] More specifically, the surface where the top plate 1 and the side plate 22 are connected is tilted relative to the surface where the top plate 1 and the main plate 21 are connected, and the included angle is an obtuse angle, so that the main plate 21 and the side plate 22 are also at an obtuse angle, thereby reducing stress concentration and improving the overall strength of the housing. The tilted surface where the top plate 1 and the side plate 22 are connected also makes the top plate 1 octagonal, which is more beautiful.

[0032] The middle support plate 3 is welded with a grabbing tooth positioning plate 5, and two grabbing tooth positioning plates 5 are provided, and both are located between the two cover plates 2. A second hole 51 is opened on the grabbing tooth positioning plate 5. The grabbing tooth positioning plate 5 is also welded to the main board 21 through a support plate 52.

[0033] The cover plate 2 is connected with a reinforcing plate 4, and two reinforcing plates 4 are provided, and the two reinforcing plates 4 are respectively located on the outsides of the two cover plates 2. The reinforcing plate 4 is connected to the cover plate 2 on the same side through a welding retaining ring 6, and the cover plate 2 and the reinforcing plate 4 are both welded to the welding retaining ring 6. The welding retaining ring 6 is provided with a first hole 61, and the first hole 61 is coaxially arranged with the second hole 51 to facilitate the installation of the pin shaft. After the pin shaft is installed, the reinforcing plate 4, the cover plate 2 and the grabbing tooth positioning plate 5 can also reinforce each other, further improving the strength of the entire shell, and thus being able to withstand greater impact and load.

[0034] In addition, weight-reducing grooves are provided on the reinforcing plate 4 and the middle support plate 3 to reduce the weight of the shell and reduce the cost. In this solution, the welds are all arranged on the inner side of the shell, thereby improving the aesthetics of the shell.

[0035] Working principle: The main board 21 and the side board 22 are used to realize a wrapping connection to the top board 1, thereby increasing the connection area and thus increasing the overall connection strength between the top board 1 and the cover board 2. At the same time, the middle support board 3 cooperates with the top board 1 and the cover board 2 to realize a closed loop, further increasing the overall strength and stability. At the same time, because the top board 1 and the cover board 2 are combined, the weight can be greatly reduced and the cost can be reduced.

[0036] Based on the above-mentioned ideal embodiments of the present utility model as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. The housing structure of a log grapple, characterized in that, including a top plate (1); cover plates (2), there are two of them, and they are oppositely connected to both sides of the top plate (1). The cover plate (2) includes a main plate (21) and two side plates (22) provided on both sides of the main plate (21). The main plate (21) and the two side plates (22) are respectively connected to three side walls of the top plate (1); an intermediate support plate (3), connected between the two main plates (21) and located below the top plate (1).

2. The housing structure of a grapple according to claim 1, characterized in that, The main plate (21) and the side plate (22) are formed by bending.

3. The housing structure of a grapple according to claim 1, characterized in that, A reinforcing rib (7) is connected between the top plate (1) and the cover plate (2), and the reinforcing rib (7) is triangular.

4. The housing structure of a grapple according to claim 3, characterized in that, The included angle between the top plate (1) and the main plate (21) is an obtuse angle, and the reinforcing rib (7) is an obtuse triangle.

5. The housing structure of a grapple as claimed in claim 1, characterized in that, The surface where the top plate (1) and the side plate (22) are connected is inclined with respect to the surface where the top plate (1) and the main plate (21) are connected, and the included angle is an obtuse angle.

6. The housing structure of a grapple as described in claim 1, characterized in that, A claw positioning plate (5) is connected to the intermediate support plate (3). There are two claw positioning plates (5), and they are both located between the two cover plates (2).

7. The housing structure of a grapple as claimed in claim 6, wherein, Reinforcing plates (4) are connected to the cover plates (2). There are two reinforcing plates (4), and the two reinforcing plates (4) are respectively located outside the two cover plates (2).

8. The housing structure of a grapple as described in claim 7, characterized in that, Welding retaining rings (6) are connected to the cover plates (2), and the welding retaining rings (6) are connected to the reinforcing plates (4) on the same side.

9. The housing structure of a log grapple as claimed in claim 8, wherein, A first hole (61) is provided on the welding retaining ring (6), and a second hole (51) is provided on the claw positioning plate (5). The first hole (61) and the second hole (51) are coaxially arranged.

10. The housing structure of a grapple as claimed in claim 7, wherein, Weight-reducing grooves are provided on both the reinforcing plate (4) and the intermediate support plate (3).

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