Hydraulic joint for engineering machinery

Abstract

The utility model provides a hydraulic joint for engineering machinery, which comprises a connecting seat connected to the engineering machinery, a fixed clamping hook matched with a first shaft pin of an accessory and a movable clamping hook matched with a second shaft pin of the accessory are arranged on the connecting seat, the fixed clamping hook is fixed on one side of the connecting seat, and the movable clamping hook is fixed on the other side of the connecting seat. The movable clamping hook is rotationally connected to the other side of the connecting base and driven by a hydraulic cylinder, one end of the hydraulic cylinder is rotationally connected to the connecting base, the other end of the hydraulic cylinder is rotationally connected to the movable clamping hook, and an adjusting and positioning assembly is arranged on the connecting base. According to the structure, under the cooperation of the fixed clamping hook and the movable clamping hook, the hydraulic rod drives the movable clamping hook to rotate, so that the accessory can be rapidly replaced, the replacement efficiency is improved, meanwhile, under the cooperation of an adjusting positioning pin of the adjusting positioning assembly, a plurality of positioning holes and adjusting grooves, the movable clamping hook can be positioned, and the replacement efficiency is improved. The movable clamping hook is prevented from loosening, and the device is suitable for accessories with different distances between the first axis and the second shaft pin.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering machinery hydraulic joint technical field, especially a kind of engineering machinery hydraulic joint. BACKGROUND

[0002] Engineering machinery is an important component of equipment industry, wherein excavator in engineering machinery is a kind of earth-moving machinery for shovel to excavate material above or below the surface of support machine and load into transport vehicle or unload to stockpile, excavator is composed of power device, working device, rotating mechanism, control mechanism, transmission mechanism, running gear and other structures. In order to adapt to the demand of different operation, small excavator needs to frequently replace different accessories during construction operation.

[0003] At present, the connection of bucket accessory of small excavator and excavator body is mainly fixed by fixed pin, when replacing different accessories, the accessory is generally fixed on the working device of excavator by the way of manual pin insertion and pin pulling, and the accessory is replaced by the way of manual pin insertion and pin pulling, which can easily increase manual labor and reduce replacement efficiency. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of engineering machinery hydraulic joints, mainly solve the problem that traditional excavator replaces accessory, is replaced by the way of manual pin insertion and pin pulling, which can easily increase manual labor and reduce replacement efficiency.

[0005] To achieve the purpose, the technical scheme of the utility model is as follows:

[0006] The utility model provides a kind of engineering machinery hydraulic joint, including the connecting seat on engineering machinery, the fixed clamping hook that is matched with the first shaft pin of accessory and the movable clamping hook that is matched with the second shaft pin of accessory are provided on the connecting seat, the fixed clamping hook is fixed on one side of connecting seat, the movable clamping hook is rotatably connected on the other side of connecting seat, the movable clamping hook is driven by hydraulic cylinder, one end of the hydraulic cylinder is rotatably connected on connecting seat, the other end is rotatably connected on movable clamping hook, adjusting positioning assembly is provided on the connecting seat;

[0007] Movable clamping hook is provided with a plurality of adjusting grooves, a plurality of positioning holes are provided on the connecting seat along the rotation direction of movable clamping hook, the position of adjusting groove and positioning hole corresponds, adjusting positioning assembly includes adjusting positioning pin, adjusting positioning pin is matched with positioning hole and adjusting groove, so that adjusting positioning pin passes through positioning hole and adjusting groove.

[0008] In an embodiment, the upper portion of the connecting seat corresponding to the fixed clamping hook is provided with an auxiliary limiting member rod, and one end of the auxiliary limiting member rod close to the fixed clamping hook is provided with an auxiliary groove matched with the first shaft pin.

[0009] In one embodiment, the auxiliary limiting member rod is provided with an outward convex rotation limiting block at the end away from the fixed clasp, and the rotation limiting block abuts against the surface of the connecting seat.

[0010] In one embodiment, the movable clasp is provided with a rotation hole, and a rotation shaft is arranged in the rotation hole and rotationally connected to the connecting seat.

[0011] In one embodiment, the connecting seat is provided with a through hole corresponding to the position of the rotation shaft, and the rotation shaft is rotationally connected to the through hole.

[0012] In one embodiment, the connecting seat is provided with a hook.

[0013] The advantages or beneficial effects of the above technical solutions at least include: through the cooperation of the fixed clasp and the movable clasp, the rotation of the movable clasp is driven by the hydraulic cylinder, the first shaft pin and the second shaft pin of the tool can be clamped between the fixed clasp and the movable clasp, so that the tool can be quickly replaced, the efficiency of replacement is improved, and through the cooperation of the adjustment positioning pin of the adjustment positioning assembly and the plurality of positioning holes and the adjustment groove, the position of the movable clasp after rotation can be adjusted and positioned, so that the movable clasp is prevented from loosening, and tools with different distances between the first shaft pin and the second shaft pin can be adapted. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the general description of the application given above, and the detailed description of the embodiments given below, serve to explain the principles of the present application. These drawings are included herewith and constitute a part of this specification. In the drawings:

[0015] Figure 1 shows a schematic view of a hydraulic joint for a construction machine according to an exemplary embodiment of the present application;

[0016] Figure 2 shows an exploded schematic view of a connecting seat and an auxiliary limiting member rod according to an exemplary embodiment of the present application;

[0017] Figure 3 shows a cross-sectional schematic view of Figure 1 according to an exemplary embodiment of the present application;

[0018] Figure 4 shows a schematic view of a movable clasp, a hydraulic cylinder and an adjustment positioning assembly according to an exemplary embodiment of the present application;

[0019] Figure 5 shows a schematic view of a connecting seat according to an exemplary embodiment of the present application;

[0020] Figure 6A schematic view of the implement 7 according to an exemplary embodiment of the present application is shown.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1, connecting seat;

[0023] 11, positioning hole; 12, through hole; 13, hook;

[0024] 2, fixed clamping hook;

[0025] 3, movable clamping hook;

[0026] 31, adjusting groove; 32, rotating hole; 33, rotating shaft;

[0027] 4, hydraulic cylinder;

[0028] 5, adjusting and positioning assembly;

[0029] 51, adjusting and positioning pin;

[0030] 6, auxiliary limiting member rod;

[0031] 61, auxiliary groove; 62, rotation limiting block;

[0032] 7, implement;

[0033] 71, first shaft pin; 72, second shaft pin. DETAILED DESCRIPTION

[0034] Embodiments of the present application will be described in more detail by referring to the attached drawings. Although some embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein, but rather these embodiments are provided to more thoroughly and completely understand the present application. It should be understood that the drawings and embodiments of the present application are for exemplary purposes only and are not intended to limit the scope of protection of the present application.

[0035] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0036] As used herein, the term "includes" and its variants are to be read to be analogous to "comprises," or "comprising." The term "based on" is to be read as "based, at least in part, on." The term "one embodiment" means "at least one embodiment." The term "another embodiment" means "at least one additional embodiment." The term "some embodiments" means "at least some embodiments." Related definitions are given throughout the description below. It should be noted that the terms "first," "second," and the like used in the present disclosure are used only to distinguish one element from another, and do not imply a particular order or a particular interdependence of elements.

[0037] It should be noted that the terms "one" and "a plurality" used in the present disclosure are illustrative and not restrictive, and those skilled in the art should understand that "one" or "a plurality" should be understood as "one or more" unless the context clearly indicates otherwise.

[0038] The names of the messages or information exchanged between the plurality of devices in the embodiments of the present application are only for illustrative purposes, and are not intended to limit the scope of the messages or information.

[0039] Referring to Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the embodiments of the present application provide a hydraulic joint for engineering machinery, which comprises a connecting seat 1 connected to the engineering machinery, a fixed clasp 2 matched with a first shaft pin 71 of a tool 7 and a movable clasp 3 matched with a second shaft pin 72 of the tool 7 are arranged on the connecting seat 1, the fixed clasp 2 is fixed on one side of the connecting seat 1, the movable clasp 3 is rotatably connected on the other side of the connecting seat 1, the movable clasp 3 is driven by a hydraulic cylinder 4, one end of the hydraulic cylinder 4 is rotatably connected on the connecting seat 1, the other end is rotatably connected on the movable clasp 3, and an adjusting and positioning assembly 5 is arranged on the connecting seat 1; wherein the fixed clasp 2 can be integrally formed with the connecting seat 1.

[0040] A plurality of adjusting grooves 31 are arranged on the movable clasp 3, a plurality of positioning holes 11 are arranged on the connecting seat 1 along the rotation direction of the movable clasp 3, the positions of the adjusting grooves 31 and the positioning holes 11 correspond to each other, the adjusting and positioning assembly 5 comprises an adjusting and positioning pin 51, the adjusting and positioning pin 51 is matched with the positioning holes 11 and the adjusting grooves 31, and the adjusting and positioning pin 51 passes through the positioning holes 11 and the adjusting grooves 31.

[0041] Adopting the above structure, through the cooperation of the fixed clamping hook 2 and the movable clamping hook 3, the rotation of the movable clamping hook 3 is driven by the hydraulic cylinder 4, the first shaft pin 71 and the second shaft pin 72 of the tool 7 can be clamped between the fixed clamping hook 2 and the movable clamping hook 3, so that the tool 7 can be quickly replaced, the efficiency of replacement is improved, and the position of the movable clamping hook 3 after rotation can be adjusted and positioned through the cooperation of the adjustment positioning pin 51 of the adjustment positioning assembly 5 and the plurality of positioning holes 11 and the adjustment slot 31, so that the movable clamping hook 3 is prevented from loosening, and the tool 7 with different distances between the first shaft pin 71 and the second shaft pin 72 can be adapted.

[0042] In an embodiment, referring to Figure 2 , the connecting seat 1 is provided with an auxiliary limiting member rod 6 corresponding to the upper side of the fixed clamping hook 2, and the end of the auxiliary limiting member rod 6 close to the fixed clamping hook 2 is provided with an auxiliary slot 61 matched with the first shaft pin 71. In actual use, through the setting of the auxiliary limiting member rod 6, the first shaft pin 71 can be limited by the auxiliary slot 61 of the auxiliary limiting member rod 6, so as to prevent the first shaft pin 71 from easily separating from the fixed clamping hook 2, so as to quickly position the tool 7, and assist the cooperation of the second shaft pin 72 and the movable clamping hook 3.

[0043] The end of the auxiliary limiting member rod 6 away from the fixed clamping hook 2 is provided with an outward protruding rotation limiting block 62 abutting against the surface of the connecting seat 1. In actual use, through the setting of the rotation limiting block 62, the rotation of the auxiliary limiting member rod 6 can be limited, so as to ensure that the auxiliary slot 61 of the auxiliary limiting member rod 6 can stably abut against the first shaft pin 71.

[0044] In an embodiment, referring to Figure 3 , Figure 4 and Figure 5 , the movable clamping hook 3 is provided with a rotating hole 32, and a rotating shaft 33 is arranged in the rotating hole 32 and rotationally connected to the connecting seat 1. In actual use, through the cooperation of the rotating shaft 33 and the rotating hole 32, the movable clamping hook 3 can be rotationally connected to the connecting seat 1.

[0045] The connecting seat 1 is provided with a through hole 12 corresponding to the position of the rotating shaft 33, and the rotating shaft 33 is rotationally connected in the through hole 12. In actual use, through the setting of the through hole 12, the rotating shaft 33 can be connected to the connecting seat 1.

[0046] In an embodiment, referring to Figure 1 , Figure 2 , Figure 3 and Figure 5 , the connecting seat 1 is provided with a hook 13. In actual use, through the setting of the hook 13, the lifting rope can be conveniently hung, so as to lift the weight.

[0047] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element indicated must have a particular orientation, construct and operate with a particular orientation, therefore can not be understood as the limitation to the utility model.

[0048] Those skilled in the art should understand that the above embodiments are only for clearly illustrating the utility model, and not limiting the scope of the utility model. For those skilled in the art, other changes or modifications can be made on the basis of the above utility model, and these changes or modifications are still within the scope of the utility model.

Claims

1. A hydraulic joint for a construction machine, characterized by, The utility model relates to a connecting seat connected on engineering machinery, the connecting seat is provided with fixed clamping hook matched with first axle pin of implement and movable clamping hook matched with second axle pin of implement, the fixed clamping hook is fixed on one side of connecting seat, the movable clamping hook is rotatably connected on the other side of connecting seat, the movable clamping hook is driven through hydraulic cylinder, one end of hydraulic cylinder is rotatably connected on connecting seat, the other end is rotatably connected on movable clamping hook, the connecting seat is provided with adjusting and positioning assembly, The movable clamping hook is provided with a plurality of adjusting grooves, the connecting seat is provided with a plurality of positioning holes along the rotation direction of the movable clamping hook, the adjusting grooves correspond to the positions of the positioning holes, the adjusting and positioning assembly comprises an adjusting and positioning pin, the adjusting and positioning pin is matched with the positioning holes and the adjusting grooves, so that the adjusting and positioning pin passes through the positioning holes and the adjusting grooves.

2. The hydraulic joint for a construction machine according to claim 1, characterized by The connecting seat is provided with an auxiliary limiting member rod above the fixed clamping hook, one end of the auxiliary limiting member rod close to the fixed clamping hook is provided with an auxiliary groove matched with the first axle pin.

3. The hydraulic knuckle for a construction machine according to claim 2, wherein The end of the auxiliary limiting member rod away from the fixed clamping hook is provided with an outward convex limiting block, and the limiting block abuts against the surface of the connecting seat.

4. The hydraulic knuckle for an earthmoving machine of claim 1, wherein, The movable clamping hook is provided with a rotating hole, a rotating shaft is arranged in the rotating hole, and the rotating shaft is rotatably connected to the connecting seat.

5. The hydraulic joint for a construction machine according to claim 4, wherein The connecting seat is provided with a through hole corresponding to the position of the rotating shaft, and the rotating shaft is rotatably connected in the through hole.

6. The hydraulic knuckle for an earthmoving machine of claim 1, wherein, The connecting seat is provided with a hook.

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