Hinge seat and arm body

Abstract

The utility model discloses a hinge seat and an arm body, and the hinge seat comprises a connecting plate which is used for connecting a first side surface of the arm body; the pitching hinging lug plate is arranged at the bottom of the connecting plate, is provided with a first hinging hole and is used for hinging a pitching drive of an arm body; and the side-sway hinging lug plate is arranged at the bottom of the connecting plate, is provided with a second hinging hole and is used for hinging arm body side-sway driving. The connecting device is applied to the field of engineering machinery, the connecting plate is used as a connecting transfer among the pitching hinging lug plate, the side-sway hinging lug plate and the arm body, so that the pitching hinging lug plate and the side-sway hinging lug plate are prevented from being directly welded with the arm body, and the problem of insufficient welding or infirm welding caused by too small plate thickness and too thin welding angle of the arm body can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an articulated seat and an arm body. Background Art

[0002] In existing engineering machinery, the hinged seat at the connection between the oil cylinder for swinging or telescopic arm and the arm body is mostly directly welded to the arm body. This method of direct welding to the arm body is prone to unstable and inaccurate welding during the processing process, and the welding is affected by the thickness of the arm body of the mechanical arm. The solder should not be piled too thick, otherwise it will produce excessive thermal stress and welding deformation, affecting the overall structural strength of the arm body. Utility Model Content

[0003] In view of the deficiencies in the above-mentioned prior art, the utility model provides an articulated seat and an arm body, which avoids direct welding with the arm body by changing the connection method between the hinge point position of the oil cylinder and the arm body, and avoids the problem of cold welding or loose welding caused by too small arm body plate thickness and too thin welding angle.

[0004] In order to achieve the above object, the utility model provides a hinged seat, comprising:

[0005] A connecting plate, used for connecting the first side surface of the arm body;

[0006] A pitch hinged ear plate, arranged at the bottom of the connecting plate, having a first hinge hole thereon for pitching and driving the articulated arm body;

[0007] The side-swing hinged ear plate is arranged at the bottom of the connecting plate and has a second hinged hole thereon for driving the side-swing of the hinged arm body.

[0008] In one embodiment, the pitch articulated lug plate and the roll articulated lug plate are both perpendicular to the connecting plate.

[0009] In one embodiment, the pitch articulated lug plate and the roll articulated lug plate are both parallel to the length direction of the arm body.

[0010] In one embodiment, the first hinge hole is coaxial with the second hinge hole.

[0011] In one embodiment, the number of the pitch articulated lug plates is two, the two pitch articulated lug plates are arranged in parallel and spaced apart on the first side of the bottom of the connecting plate, and a first rib plate is connected between the two pitch articulated lug plates.

[0012] In one embodiment, the number of the side-swing hinged ear plates is two, the two side-swing hinged ear plates are arranged in parallel and spaced apart on the second side of the bottom of the connecting plate, and a second rib plate is connected between the two side-swing hinged ear plates.

[0013] In one of the embodiments, a reinforcing rib plate capable of being connected to a second side surface of the arm body is provided on the top of the connecting plate, wherein the second side surface and the first side surface are two adjacent side surfaces on the arm body.

[0014] In one embodiment, the reinforcing rib plate is a tapered curved plate structure that is narrow at the top and wide at the bottom, with a first opening at the wider end and a second opening at the side;

[0015] An edge of the first opening is connected to the connecting plate, and an edge of the second opening is connected to the second side surface.

[0016] In one embodiment, the number of the reinforcing rib plate is one, and the reinforcing rib plate is arranged on one side of the top of the connecting plate corresponding to the side swing hinged ear plate; or

[0017] The number of the reinforcing rib plates is more than two, and each of the reinforcing rib plates is arranged on one side of the top of the connecting plate corresponding to the side swing hinged ear plate, and is spaced apart along the width direction of the connecting plate; or

[0018] There are multiple reinforcing rib plates, and both sides of the top of the connecting plate are provided with the reinforcing rib plates.

[0019] In one of the embodiments, the partial contour edges of the connecting plate located on both sides of the pitch hinged ear plate in the length direction are convex arc structures.

[0020] In order to achieve the above-mentioned purpose, the utility model further provides an arm body, comprising the above-mentioned hinge seat, wherein the top of the connecting plate in the hinge seat is welded to the first side surface of the arm body.

[0021] Compared with the prior art, the utility model has the following beneficial technical effects:

[0022] 1. The articulated seat in the utility model uses the connecting plate as the connection transfer between the pitch articulated ear plate, the side swing articulated ear plate and the arm body, thereby avoiding direct welding of the pitch articulated ear plate, the side swing articulated ear plate and the arm body, and there is no need to worry about the arm body being bent during welding, which can effectively avoid the problem of false welding or weak welding caused by too small arm body plate thickness and too thin welding angle;

[0023] 2. In the preferred embodiment of the hinge seat of the utility model, the first hinge hole and the second hinge hole are coaxially arranged, so that the hole can be bored with one tool, which not only simplifies the process and facilitates machining, but also ensures high processing accuracy;

[0024] 3. In the preferred embodiment of the hinged seat of the utility model, a reinforcing rib plate which is narrow at the top and wide at the bottom can be added on the top of the connecting plate to connect the second side surface of the arm body. This can not only effectively improve the connection strength between the hinged seat and the arm body, but also the reinforcing rib plate which is narrow at the top and wide at the bottom can well release the lateral stress of the arm body, thereby avoiding stress concentration and reducing the overall strength of the arm body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 It is a first axonometric view of the hinged seat in Embodiment 1 of the present utility model;

[0027] Figure 2 It is a second axonometric view of the hinged seat in Embodiment 1 of the present utility model;

[0028] Figure 3 It is a third axonometric view of the hinged seat in Embodiment 1 of the present utility model;

[0029] Figure 4 It is a fourth axonometric view of the hinged seat in Embodiment 1 of the present utility model;

[0030] Figure 5 It is a front view of the hinged seat in Embodiment 1 of the present utility model;

[0031] Figure 6 It is a partial axonometric view of the arm body in Example 2 of the utility model.

[0032] Reference numerals: connecting plate 1, pitch articulated ear plate 2, side swing articulated ear plate 3, first articulated hole 201, second articulated hole 301, first rib plate 4, second rib plate 5, reinforcing rib plate 6, arm body 7, arm body pitch drive 8, arm body side swing drive 9.

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] Example 1

[0040] like Figures 1 to 5The figure shows an articulated seat disclosed in this embodiment, which mainly includes a connecting plate 1, a pitch articulated ear plate 2 and a side swing articulated ear plate 3. The connecting plate 1 is used to fix the first side surface of the connecting arm. The pitch articulated ear plate 2 is arranged at the bottom of the connecting plate 1, and the pitch articulated ear plate 2 has a first articulated hole 201, which is used for the pitch drive of the articulated arm. The side swing articulated ear plate 3 is arranged at the bottom of the connecting plate 1, and the side swing articulated ear plate 3 has a second articulated hole 301, which is used for the side swing drive of the articulated arm.

[0041] When the articulated seat in this embodiment is used, the connecting plate 1 is welded to the first side surface of the arm body, and the pitch drive and the side swing drive of the arm body are respectively hinged on the pitch articulated ear plate 2 and the side swing articulated ear plate 3, that is, the connecting plate 1 is used as a connection transit between the pitch articulated ear plate 2, the side swing articulated ear plate 3 and the arm body, avoiding direct welding of the pitch articulated ear plate 2, the side swing articulated ear plate 3 and the arm body. Therefore, there is no need to worry about bending the arm body during welding, and effectively avoiding the problem of false welding or loose welding due to too small arm body plate thickness and too thin welding angle.

[0042] Specifically in this embodiment, the pitch articulated ear plate 2 and the side swing articulated ear plate 3 are both perpendicular to the connecting plate 1, and the pitch articulated ear plate 2 and the side swing articulated ear plate 3 are parallel to the length direction of the arm body. By arranging the pitch articulated ear plate 2 and the side swing articulated ear plate 3 in parallel and perpendicular to the connecting plate 1, loads and stresses from different directions can be effectively dispersed and transmitted, thereby effectively improving the stability and durability of the entire structure and reducing the risk of fatigue or damage caused by stress concentration.

[0043] It is worth noting that in the specific application process, the pitch articulated ear plate 2 and the roll articulated ear plate 3 can also be set to be non-parallel. For example, the pitch articulated ear plate 2 is set to be parallel to the length direction of the arm body, and the roll articulated ear plate 3 is set to be perpendicular to the length direction of the arm body. At this time, the pitch articulated ear plate 2 is directly articulated to the pitch drive of the arm body, and the roll articulated ear plate 3 is articulated to the roll drive of the arm body through a universal joint structure.

[0044] As a preferred embodiment, the first hinge hole 201 and the second hinge hole 301 are coaxially arranged, so that the first hinge hole 201 and the second hinge hole 301 can be processed and formed by boring with a single tool, which not only simplifies the process and facilitates machining, but also ensures higher processing accuracy.

[0045] In the present embodiment, the number of the pitch articulated ear plates 2 and the side swing articulated ear plates 3 are both two, the two pitch articulated ear plates 2 are arranged in parallel and spaced apart on the first side of the bottom of the connecting plate 1, the two side swing articulated ear plates 3 are arranged in parallel and spaced apart on the second side of the bottom of the connecting plate 1, and a first rib plate 4 is connected between the two pitch articulated ear plates 2, and a second rib plate 5 is connected between the two side swing articulated ear plates 3, thereby effectively enhancing the overall structural stability of the articulated seat.

[0046] In this embodiment, a reinforcing rib plate 6 capable of being connected to the second side surface of the arm body is further provided on the top of the connecting plate 1, wherein the second side surface and the first side surface are two adjacent side surfaces on the arm body. Specifically in this embodiment, the first side surface is the bottom plane of the arm body, and the second side surface is the two side planes of the arm body.

[0047] As a preferred embodiment, the reinforcing rib plate 6 is a tapered curved plate structure that is narrow at the top and wide at the bottom, with a first opening at the wider end and a second opening at the side, the edge of the first opening being connected to the connecting plate 1, and the edge of the second opening being connected to the second side surface of the arm body. In the reinforcing rib plate 6, the stress of the narrower part at the top is relatively concentrated, and the wider part at the bottom allows the stress to be relatively dispersed, and the stress is released from the narrow part to the wide part, thereby effectively avoiding stress concentration.

[0048] Since in the specific implementation process, the arm pitch drive is mostly located directly below the arm, and the arm side swing drive is mostly located on the side of the arm, when the articulated seat is connected to the arm in this embodiment, one side of the connecting plate 1 corresponding to the side swing articulated ear plate 3 usually extends out of the side of the arm. In order to enhance the stability of the connection between the articulated seat and the arm, the layout structure of the reinforcing rib plate 6 in this embodiment specifically has the following implementation methods:

[0049] In the first embodiment, one side of the connecting plate 1 corresponding to the side swing hinged ear plate 3 extends out of the side of the arm body. At this time, the number of the reinforcing rib plate 6 is one, and the reinforcing rib plate 6 is arranged on the side of the top of the connecting plate 1 corresponding to the side swing hinged ear plate 3.

[0050] In the second embodiment, the side of the connecting plate 1 corresponding to the side swing hinge ear plate 3 extends out of the side of the arm body. At this time, the number of reinforcing ribs 6 is more than two, and each reinforcing rib 6 is arranged on the side of the top of the connecting plate 1 corresponding to the side swing hinge ear plate 3, and each reinforcing rib 6 is spaced apart along the width direction of the connecting plate 1, wherein the width direction of the connecting plate 1 is the length direction of the arm body.

[0051] In the third embodiment, the sides of the connecting plate 1 extend out of the side parts of the arm body. At this time, the number of reinforcing ribs 6 is multiple, and both sides of the top of the connecting plate 1 have reinforcing ribs 6, that is, the connecting plate 1 and the reinforcing ribs 6 are a concave structure as a whole, and the arm body is connected in the groove of the concave structure.

[0052] In this embodiment, the connecting plate 1 is fixed to the pitch articulated ear plate 2, the roll articulated ear plate 3, and the reinforcing rib plate 6 by welding.

[0053] In the present embodiment, part of the contour edge on the connecting plate 1 located on both sides of the length direction of the pitch articulated ear plate 2 is a convex arc structure. Since the area on the connecting plate 1 corresponding to the pitch articulated ear plate 2 is located as a whole below the arm body, the edge contour at the corresponding position is set to a convex arc structure, and the convex direction is the same as the length direction of the arm body. Therefore, stress can be effectively released, thereby effectively avoiding stress concentration.

[0054] Example 2

[0055] Based on the hinged seat disclosed in Example 1, this embodiment discloses an arm body having the hinged seat in Example 1.

[0056] refer to Figure 6 The connecting plate 1 on the articulated seat is welded to the bottom of the arm body 7, and the reinforcing rib plate 6 on the articulated seat is welded to the side of the arm body 7. Among them, the first end of the arm body pitch drive 8 is hinged on the pitch articulated ear plate 2, and the first end of the arm body sway drive 9 is hinged on the sway articulated ear plate 3. As for the connection structure of the second end of the arm body pitch drive 8 and the second end of the arm body sway drive 9, the specific implementation structure disclosed in patent CN107514236A can be referred to, and it will not be repeated in this embodiment.

[0057] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An articulated seat, characterized in that: include: A connecting plate, used for connecting the first side surface of the arm body; A pitch hinged ear plate, arranged at the bottom of the connecting plate, having a first hinge hole thereon for pitching and driving the articulated arm body; The side-swing hinged ear plate is arranged at the bottom of the connecting plate and has a second hinged hole thereon for driving the side-swing of the hinged arm body.

2. The hinge seat according to claim 1, characterized in that: The pitch articulated lug plate and the roll articulated lug plate are both perpendicular to the connecting plate.

3. The hinge seat according to claim 2, characterized in that: The pitch articulated ear plate and the side swing articulated ear plate are both parallel to the length direction of the arm body.

4. The hinge seat according to claim 1, characterized in that: The first hinge hole is coaxial with the second hinge hole.

5. The hinge seat according to claim 1, 2, 3 or 4, characterized in that: The number of the pitch articulated lug plates is two, the two pitch articulated lug plates are arranged in parallel and at intervals on the first side of the bottom of the connecting plate, and a first rib plate is connected between the two pitch articulated lug plates.

6. The hinge seat according to claim 1, 2, 3 or 4, characterized in that: The number of the side-swing hinged ear plates is two, and the two side-swing hinged ear plates are arranged in parallel and spaced apart on the second side of the bottom of the connecting plate, and a second rib plate is connected between the two side-swing hinged ear plates.

7. The hinge seat according to claim 1, 2, 3 or 4, characterized in that: A reinforcing rib plate which can be connected to the second side surface of the arm body is provided on the top of the connecting plate, wherein the second side surface and the first side surface are two adjacent side surfaces on the arm body.

8. The hinge seat according to claim 7, characterized in that: The reinforcing rib plate is a tapered curved plate structure that is narrow at the top and wide at the bottom, with a first opening at the wider end and a second opening at the side; An edge of the first opening is connected to the connecting plate, and an edge of the second opening is connected to the second side surface.

9. The hinge seat according to claim 7, characterized in that: The number of the reinforcing rib plate is one, and the reinforcing rib plate is arranged on one side of the top of the connecting plate corresponding to the side swing hinged ear plate; or The number of the reinforcing rib plates is more than two, and each of the reinforcing rib plates is arranged on one side of the top of the connecting plate corresponding to the side swing hinged ear plate, and is spaced apart along the width direction of the connecting plate; or There are multiple reinforcing rib plates, and both sides of the top of the connecting plate are provided with the reinforcing rib plates.

10. The hinge seat according to claim 1, characterized in that: Part of the contour edges of the connecting plate located on both sides of the pitch hinged ear plate in the length direction are convex arc structures.

11. An arm body, characterized in that: It comprises the hinge seat according to any one of claims 1 to 10, wherein the top of the connecting plate in the hinge seat is welded to the first side surface of the arm body.

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