Oil cylinder limiting and protecting cover for excavator accessory

Abstract

The utility model belongs to the technical field of excavators, and particularly relates to an oil cylinder limiting and protecting cover for an excavator accessory, which comprises a clamping jaw support, a clamping jaw seat arranged on the clamping jaw support and a protecting and limiting component arranged on the clamping jaw support. A hinge shaft is arranged on the clamping jaw support through an oil cylinder fixing pin, an oil cylinder is movably arranged on the hinge shaft, the oil cylinder is connected to the periphery of the oil cylinder in a covering mode through an oil cylinder limiting protection cover, the oil cylinder is directly protected and is prevented from being collided by external force, and when the oil cylinder drives the clamping jaw head, the hinge shaft at the tail end of the oil cylinder is supported by two forces at the moment, so that the clamping jaw head is driven by the oil cylinder. One force is the supporting force of the oil cylinder fixing pin, and the other force is the supporting force of the oil cylinder limiting protection cover, so that the oil cylinder fixing pin is protected from being bent when being subjected to the counter-acting force of the oil cylinder, the oil cylinder can be protected from being damaged by external force, one side of the oil cylinder can be limited, and the service life of the oil cylinder is prolonged. And the oil cylinder fixing pin is prevented from being bent and damaged due to overlarge stress.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavators, and in particular relates to a cylinder limiter and protective cover for excavator accessories. Background Art

[0002] During the design process of excavator attachments, a cylinder protection cover is required, and the protection cover is required to limit the position of the cylinder and prevent the fixing pin from deforming. Currently, there is no related product on the market;

[0003] The existing device can only protect the oil cylinder, but cannot limit the oil cylinder, and cannot meet the use requirements. Utility Model Content

[0004] To solve the problems raised in the above background technology. The utility model provides a cylinder limit and protective cover for excavator accessories, including a clamping jaw bracket, and a clamping jaw seat arranged on the clamping jaw bracket, and also includes a protective limit assembly arranged on the clamping jaw bracket, a clamping jaw head is movably arranged on the clamping jaw seat, a hinge shaft is arranged on the clamping jaw bracket through a cylinder fixing pin, a cylinder is movably arranged on the hinge shaft, and the top end of the cylinder rod of the cylinder is movably connected to one end of the clamping jaw head, the protective limit assembly includes a limit groove provided on the clamping jaw seat, and a cylinder limit protective cover movably arranged on the hinge shaft, a screw hole is provided inside the limit groove, and a protective cover limit protrusion is provided on the upper and lower surfaces of the left end of the cylinder limit protective cover, and a fixing bolt for fixing is provided on the protective cover limit protrusion, and a mounting hole matching the hinge shaft is provided at the rear end of the cylinder limit protective cover.

[0005] As a cylinder limiter and protective cover for excavator accessories of the utility model, preferably, the protective cover limiter protrusion matches the limiter groove, and the protective cover limiter protrusion is clamped inside the limiter groove, and is limited by the cooperation of the fixing bolt and the screw hole.

[0006] As a cylinder limit and protection cover for excavator attachments of the utility model, preferably, the cylinder limit protection cover is a U-shaped structure, and the cylinder limit protection cover is connected to the outer periphery of the cylinder.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] The right end of the oil cylinder limit protection cover is movably set on the hinge shaft, and then the oil cylinder limit protection cover is rotated, the protection cover limit protrusion on the oil cylinder limit protection cover is clamped in the limit groove, and limited by the cooperation of the fixing bolt and the screw hole, and the oil cylinder limit protection cover is connected to the outer periphery of the oil cylinder to directly protect the oil cylinder from collision with external force. When the oil cylinder drives the clamping claw head, the hinge shaft at the rear end of the oil cylinder is supported by two forces, one is the force of the oil cylinder fixing pin supporting it, and the other is the force of the oil cylinder limiting protection cover supporting it, thereby protecting the oil cylinder fixing pin from bending when subjected to the reaction force of the oil cylinder, which can not only protect the oil cylinder from damage by external force, but also limit one side of the oil cylinder to prevent the oil cylinder fixing pin from bending and damage due to excessive force. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the protective cover of the utility model being opened;

[0012] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0013] Figure 4 This is a schematic diagram of the protective cover structure of the utility model;

[0014] Figure 5 for Figure 3 A schematic diagram of the enlarged structure at point A;

[0015] Figure 6 for Figure 3 A schematic diagram of the enlarged structure at B;

[0016] In the figure:

[0017] 1. Gripper bracket;

[0018] 2. Gripper seat;

[0019] 3. Protective limit assembly; 31. Limit slot; 32. Cylinder limit protection cover; 33. Screw

[0020] hole; 34, protective cover limiting convex block; 35, fixing bolt; 36, mounting hole;

[0021] 4. Gripping jaws;

[0022] 5. Cylinder fixing pin;

[0023] 6. Hinge axis;

[0024] 7. Oil cylinder. DETAILED DESCRIPTION

[0025] 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 in 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.

[0026] Example 1

[0027] like Figure 1 As shown;

[0028] A cylinder limiter and protective cover for excavator attachments comprises a clamping claw bracket 1 and a clamping claw seat 2 arranged on the clamping claw bracket 1.

[0029] In this embodiment: In order to solve the technical problems existing in this prior art, as disclosed in the background technology above, "the current existing devices can only protect the oil cylinder, but cannot limit the oil cylinder, and cannot meet the use requirements", combined with actual use, this problem is obviously a real and difficult problem to solve. In view of this, in order to solve this technical problem, a protective limit component 3 is added on this basis.

[0030] like Figure 1-6 As shown in the figure;

[0031] In combination with the above content, in order to simultaneously complete the protection and limitation of the cylinder, it also includes a protection and limiting component 3 arranged on the clamping jaw bracket 1, a clamping jaw head 4 is movably arranged on the clamping jaw seat 2, a hinge shaft 6 is arranged on the clamping jaw bracket 1 through the cylinder fixing pin 5, a cylinder 7 is movably arranged on the hinge shaft 6, and the top end of the cylinder rod of the cylinder 7 is movably connected to one end of the clamping jaw head 4.

[0032] In an optional embodiment, the protective limit assembly 3 includes a limit groove 31 opened on the clamping claw seat 2, and a cylinder limit protection cover 32 movably arranged on the hinge shaft 6, a screw hole 33 is opened inside the limit groove 31, and the cylinder limit protection cover 32 is provided with a protective cover limit protrusion 34 on the upper and lower surfaces of the left end, and the protective cover limit protrusion 34 is provided with a fixing bolt 35 for fixing, and the rear end of the cylinder limit protection cover 32 is provided with a mounting hole 36 matching the hinge shaft 6.

[0033] In an optional embodiment, the protective cover limiting protrusion 34 matches the limiting groove 31, and the protective cover limiting protrusion 34 is clamped in the limiting groove 31, and is limited by the cooperation of the fixing bolt 35 and the screw hole 33. The cylinder limiting protective cover 32 is a U-shaped structure, and the cylinder limiting protective cover 32 is connected to the outer periphery of the cylinder 7.

[0034] Working principle of this utility model:

[0035] The right end of the cylinder limit protection cover 32 is movably set on the hinge shaft 6, and then the cylinder limit protection cover 32 is rotated to clamp the protection cover limit protrusion 34 on the cylinder limit protection cover 32 into the limit groove 31, and limit it through the cooperation of the fixing bolt 35 and the screw hole 33, and the cylinder limit protection cover 32 is connected to the outer periphery of the cylinder 7 to directly protect the cylinder 7 from collision with external forces. When the cylinder 7 drives the clamping claw head 4, the hinge shaft 6 at the tail end of the cylinder 7 is supported by two forces, one is the force supporting it by the cylinder fixing pin 5, and the other is the force supporting it by the cylinder limiting protection cover 32, thereby protecting the cylinder fixing pin 5 from bending when it is subjected to the reaction force of the cylinder, which can not only protect the cylinder from damage by external forces, but also limit one side of the cylinder to prevent the cylinder fixing pin 6 from bending and damage due to excessive force.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cylinder limiter and protective cover for excavator attachments, comprising a clamping claw bracket (1) and a clamping claw seat (2) arranged on the clamping claw bracket (1), characterized in that: The invention also comprises a protective limiting assembly (3) arranged on the clamping jaw support (1); a clamping jaw head (4) is movably arranged on the clamping jaw support (2); a hinge shaft (6) is arranged on the clamping jaw support (1) via a cylinder fixing pin (5); a cylinder (7) is movably arranged on the hinge shaft (6); and a top end of a cylinder rod of the cylinder (7) is movably connected to one end of the clamping jaw head (4); the protective limiting assembly (3) comprises a limiting groove (31) provided on the clamping jaw support (2); ), and a cylinder limit protection cover (32) movably arranged on the hinge shaft (6), a screw hole (33) is provided inside the limit groove (31), a protection cover limit protrusion (34) is provided on the upper and lower surfaces of the left end of the cylinder limit protection cover (32), a fixing bolt (35) for fixing is provided on the protection cover limit protrusion (34), and a mounting hole (36) matching the hinge shaft (6) is provided at the rear end of the cylinder limit protection cover (32).

2. The cylinder limiter and protective cover for excavator attachments according to claim 1, characterized in that: The protective cover limiting protrusion (34) matches the limiting groove (31), and the protective cover limiting protrusion (34) is clamped inside the limiting groove (31), and is limited by the cooperation of the fixing bolt (35) and the screw hole (33).

3. The oil cylinder limiter and protective cover for excavator attachment according to claim 1, characterized in that: The oil cylinder limit protection cover (32) is in a U-shaped structure, and the oil cylinder limit protection cover (32) is connected to the outer periphery of the oil cylinder (7).

Images