CN219430877U - Working mechanical device provided with pin shaft stop assembly - Google Patents

Abstract

The utility model discloses a working mechanical device provided with a pin shaft stop assembly. The device belongs to the technical field of engineering machinery, and comprises a first component, a second component, a third component and a pressing plate which are connected together through a shaft. The utility model is characterized in that: the shaft stop structure is located between the assemblies; 2. the pressing plate is provided with through outlines with different sizes, and the shaft is fixed and loosened by matching with the use of the spacer bush; 3. the third design of the assembly has a protruding part, plays a role in placing the pressing plate, and avoids manual hand support when assembling the shaft, so that the shaft can be assembled conveniently.

Description

Working mechanical device provided with pin shaft stop assembly

Technical Field

The utility model belongs to the technical field of engineering machinery, and relates to a pin shaft stop structure and an excavator; and more particularly to a work machine apparatus incorporating a pin stop assembly.

Background

The pin shaft stop structure is widely applied to various mechanical structures, and particularly to the technical field of excavators. Based on the requirement of the excavating function of the excavator, the parts such as the movable arm, the bucket rod, the rocker, the connecting rod and the bucket are all connected through pin shafts to realize the relative rotation among the parts. Meanwhile, the pin shaft must be ensured not to axially float out of the shaft sleeve, so that the pin shaft for the excavator must be designed with a pin shaft stop structure.

Existing pin stop structures are located at the pin ends, common stop forms including; stop sleeve stop structure and platen stop structure. The stop sleeve stop structure adopts the stop sleeve and the pin shaft to stop through bolts, and the structure is simple and easy to assemble and disassemble. The pressing plate stop structure comprises two types, wherein one type is a pin shaft end part groove, a pin shaft mounting seat is welded with a wire seat or is provided with a threaded hole, and a baffle plate is placed into a groove for axial and radial stop. The other is that the end of the pin shaft is welded with a pressing plate, and the bolt is matched with the gasket to press the pressing plate for stopping. But has the disadvantages that: the existing pin stop structure is located at the end of the pin and is not suitable for structures that require the stop structure to be positioned in the middle of the pin.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a working mechanical device with a pin shaft stop assembly.

The technical scheme is as follows: the utility model relates to a working mechanical device with a pin shaft stop assembly,

comprises a first component, a second component and a third component, wherein the corresponding parts of the first component and the second component are provided with shaft holes which are matched with each other,

one end of the third component is provided with a first protruding part which is matched with the shaft hole;

a shaft is movably arranged in the shaft hole in a penetrating mode, and the shaft penetrates through the shaft holes formed in the first component and the second component and is arranged on the protruding part I of the third component.

Further, a pressing plate is arranged between the second component and the third component,

the pressing plate comprises an outer contour and an inner contour, the outer contour is of a closed structure,

the internal profile comprises a first profile, a second profile and a third profile which are communicated,

the outline one is of a square structure, which comprises an outline surface one and an outline surface five,

the second outline is a square and round connecting structure, which comprises a fourth outline surface and a third outline surface,

the third outline is of a square structure and comprises a second outline surface.

Further, the aperture of the first contour is larger than that of the second contour, and the aperture of the second contour is larger than that of the third contour.

Further, shafts for connecting the first component, the second component and the third component are penetrated in the inner hole formed in the first contour;

the inner diameter of the first contour is adapted to the outer diameter of the shaft.

Further, a second protruding part is arranged on the outer wall of the other end of the third component towards one side of the second component, and an adaptive spacer bush is sleeved on the outer wall of the second protruding part;

a bolt for fixing the pressing plate and the third component is arranged in the second protruding part, and a gasket is arranged between the bolt and the spacer bush;

the spacer bush is arranged in the third contour, and the outer diameter of the spacer bush is matched with the inner diameter of the third contour;

the outer diameter of the bolt (180) is matched with the inner diameter of the second protruding part and the gasket.

Further, a clamping groove is formed in the shaft.

The beneficial effects are that: the utility model is characterized in that 1, a pin shaft stop structure capable of realizing special structure limitation is arranged between components; 2. the pin shaft stop structure is simple, and the disassembly and assembly are convenient.

Drawings

FIG. 1 is an assembled schematic view of an embodiment of the present utility model;

FIG. 2 is an exploded view of an assembly drawing of the present utility model

FIG. 3 is a schematic view of a pin in an embodiment of the present utility model;

FIG. 4 is a schematic view of a pressure plate according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of the components of an embodiment of the present utility model;

FIG. 6 is a schematic view showing a state in which a rear platen of a concealed component is hung on the component according to an embodiment of the present utility model;

110-component one; 120-component II; 130-a pressing plate; 140-component three; 150-axis; 160-spacer bush; 170-a gasket; 180-bolts;

131-contour surface one; 132-contour one; 133-profile two; 134-profile three; 135-profile surface two; 136-profile surface three; 137-profile surface four; 138-profile surface five;

141-first protrusion; 142-second protrusion;

151-clamping groove.

Detailed Description

The utility model will be further described with reference to the drawings and the specific embodiments.

As shown in the figures, the work machine device provided with the pin stop assembly provides a solution for a mechanical structure requiring the stop structure to be arranged between two parts;

as shown in fig. 1, the present utility model includes a first component 110, a second component 120 and a third component 140, which are connected together by a shaft 150, and there is a relative rotation between the first component 110, the second component 120 and the third component 140;

in order to prevent axial movement of the shaft 150 during relative rotation between the components, a stop structure is required to be designed to fix the shaft 150 to one of the first 110, second 120, and third 140 components; in theory, the shaft 150 is preferably assembled with the outer second component 120, but in actual production, the shaft 150 needs to be assembled with the middle third component 140 due to structural or manufacturing constraints; under the condition, the utility model provides a novel pin shaft fixing structure;

as shown in fig. 2, the structure includes a shaft 150, a platen 130, a spacer 160, a third component 140, a second component 120, and a fastener (a washer 170 and a bolt 180);

as shown in fig. 3, a clamping groove 151 is formed in the middle of the shaft 150;

as shown in fig. 4, the outer contour of the pressing plate 130 is closed, and the inner contour includes a first contour 132, a second contour 133, and a third contour 134;

in this embodiment, the first contour 132 is square, and includes a first contour surface 131 and a fifth contour surface 138;

the second contour 133 is integrally square and circular, and comprises a fourth contour surface 137 and a third contour surface 136;

the third contour 134 is square in whole and comprises a second contour surface 135;

as shown in fig. 5, the third component 140 includes a first protrusion 141 and a second protrusion 142, and specifically, the protruding length of the first protrusion 141 and the second protrusion 142 is greater than the thickness of the pressing plate 130, and the outer end surface of the second protrusion 142 is provided with a threaded hole.

The specific implementation mode of the utility model is as follows: as shown in fig. 5, 6 and 2, the pressing plate 130 is firstly hung on the first protruding part 141 and the second protruding part 142 of the third component 140, then the first component 110, the second component 120 and the third component 140 are connected together through the shaft 150, and the position of the clamping groove 151 of the pin shaft is adjusted before the shaft 150 is installed, so that the bottom surface of the clamping groove 151 is parallel to the first pressing plate contour surface 131;

moving the pressing plate 130 along the axial direction of the shaft into a gap reserved between the second component 120 and the third component 140, wherein the reserved gap is larger than the thickness of the pressing plate 130 so as to ensure that the pressing plate 130 can move freely in the gap;

moving the pressing plate 130 to enable the bottom surface of the clamping groove 151 to be in contact with the first contour surface 131 of the pressing plate 130, sleeving the second protruding part 142 of the third component 140 with the spacer 160, enabling the contour surface of the pressing plate 130 to be in contact with the outer surface of the spacer 160, and enabling the pressing plate 130 to be limited by the shaft 150 and the spacer 160 and not move;

finally, installing fasteners (gaskets 170 and bolts 180); when the disassembly is carried out, the sequence is reverse.

In addition, the inner contour of the platen 130 in the present utility model is not limited to the contour in the present embodiment, and includes all contours capable of achieving all functions;

the utility model is characterized in that: 1. the shaft 150 stop structure is located between the components; 2. the pressing plate 130 is provided with through outlines with different sizes, and the shaft 150 is fixed and loosened by matching with the use of the spacer 160; 3. the third component 140 is designed with a protruding portion, which plays a role of placing the pressing plate 130, avoids the need of manual hand during assembling the shaft 150, and facilitates assembling the shaft 150.

The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the utility model without departing from the principles thereof are intended to be within the scope of the utility model as set forth in the following claims.

Claims (6)

1. A work machine apparatus having a pin stop assembly mounted thereto, comprising:

comprises a first component (110), a second component (120) and a third component (140), wherein corresponding positions of the first component (110) and the second component (120) are provided with shaft holes which are matched with each other,

one end of the third component (140) is provided with a first protruding part (141) which is matched with the shaft hole;

a shaft (150) is movably arranged in the shaft hole in a penetrating way, and the shaft (150) penetrates through the shaft holes formed in the first component (110) and the second component (120) and then is arranged on the protruding part (141) of the third component (140).

2. A work machine device with a pin stop assembly mounted thereto as recited in claim 1, wherein:

a pressing plate (130) is arranged between the second component (120) and the third component (140),

the platen (130) includes an outer contour and an inner contour, the outer contour being a closed-like structure,

the internal profile includes a first profile (132), a second profile (133), and a third profile (134) that are in communication,

the first contour (132) is of a square structure as a whole and comprises a first contour surface (131) and a fifth contour surface (138),

the second profile (133) is a square and round connecting structure, which comprises a fourth profile surface (137) and a third profile surface (136),

the third profile (134) is of a square structure as a whole and comprises a second profile surface (135).

3. A work machine with a pin stop assembly mounted thereto as recited in claim 2, wherein:

the aperture of the first contour (132) is larger than that of the second contour (133), and the aperture of the second contour (133) is larger than that of the third contour (134).

4. A work machine with a pin stop assembly mounted thereto as recited in claim 2, wherein:

a shaft (150) used for connecting the first component (110), the second component (120) and the third component (140) penetrates through an inner hole formed in the first contour (132);

the inner diameter of the first contour (132) is adapted to the outer diameter of the shaft (150).

5. A work machine with a pin stop assembly mounted thereto as recited in claim 2, wherein:

a second protruding part (142) is arranged on the outer wall of the other end of the third component (140) towards one side of the second component (120), and an adaptive spacer bush (160) is sleeved on the outer wall of the second protruding part (142);

a bolt (180) for fixing the pressing plate (130) and the third component (140) is arranged in the second protruding part (142), and a gasket (170) is arranged between the bolt (180) and the spacer bush (160);

the spacer bush (160) is arranged in the third contour (134), and the outer diameter of the spacer bush is matched with the inner diameter of the third contour (134);

the outer diameter of the bolt (180) is matched with the inner diameters of the gasket (170) and the second protruding part (142).

6. A work machine device with a pin stop assembly mounted thereto as recited in claim 1, wherein:

a clamping groove (151) is formed in the shaft (150).