High-stability oil cylinder fixing seat

Abstract

The utility model discloses a high-stability oil cylinder fixing seat, which relates to the technical field of oil cylinder installation and comprises an oil cylinder body and a connecting lug fixedly arranged on the oil cylinder body, and a connecting port is arranged on the connecting lug. The clamping plates are symmetrically located on the two opposite sides of the connecting lug, the plate openings are formed in the clamping plates, the pin shaft penetrates through the connecting openings and the plate openings in an attached mode at the same time, the connecting plate is fixed to one shaft end of the pin shaft and attached to the clamping plates, and the locking assembly is used for stabilizing the positions of the clamping plates and the connecting plate. The locking assembly comprises a positioning opening formed in the connecting plate and a positioning column fixedly arranged on the clamping plate. The positioning column moves in the positioning opening in the axial direction of the pin shaft so as to limit the pin shaft to rotate around the axis of the pin shaft. The oil cylinder has the advantages that the connecting lugs on the oil cylinder body are arranged between the two sets of clamping plates, the connecting openings are aligned to the plate openings of the two sets of clamping plates, the pin shaft is arranged in the connecting openings and the plate openings of the two sets of clamping plates, the connecting lugs and the clamping plates are connected into a whole, then the positions of the connecting plates and the clamping plates are stabilized through the locking assemblies, and the stability of the position of the pin shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder installation, and more specifically to a high-stability oil cylinder fixing seat. Background Art

[0002] The hydraulic cylinder fixing seat of the excavator is one of the key structural components of the excavator. It is mainly used to stabilize and support the hydraulic cylinder of the excavator to ensure the stability and safety of the hydraulic cylinder during operation. The hydraulic cylinder is the core component that drives the various working devices of the excavator (such as boom, dipper arm, bucket, etc.) to move, and realizes linear reciprocating motion through the pressure generated by the hydraulic system.

[0003] The existing {such as publication (announcement) number: CN111456125A, excavator working device and excavator} has a rotating fixed seat installed and used at both ends of the "bucket cylinder" through "connecting ears"; in order to ensure high stability during cylinder installation, it is urgently necessary to propose a fixed seat structure that can improve the stability of cylinder installation and use. Utility Model Content

[0004] The purpose of the utility model is to provide a high-stability oil cylinder fixing seat in order to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] The utility model proposes a high-stability oil cylinder fixing seat, comprising an oil cylinder body and a connecting ear fixed thereon, wherein the connecting ear is provided with a connecting port;

[0007] It also includes clamping plates symmetrically located on opposite sides of the connecting ears, a plate opening arranged on the clamping plates, a pin shaft that fits through the connecting opening and the plate opening at the same time, a connecting plate fixed to one axial end of the pin shaft and fitted with the clamping plates, and a locking assembly for stabilizing the positions of the clamping plates and the connecting plates.

[0008] As a preferred technical solution of the utility model, the locking assembly includes a positioning hole arranged on the connecting plate and a positioning column fixed on the clamping plate, and the positioning column moves in the positioning hole by the axial movement of the pin shaft to limit the rotation of the pin shaft about its axis.

[0009] As a preferred technical solution of the utility model, a positioning column is fitted in the positioning hole.

[0010] As a preferred technical solution of the utility model, the locking assembly also includes a stabilizing assembly connected to the positioning column and fitted to the connecting plate to limit the axial end displacement of the pin shaft along the direction of the connecting plate.

[0011] As a preferred technical solution of the utility model, the stabilization assembly includes a pressure block and a connecting ring fixed on one side of the connecting plate, the connecting ring is threadedly connected to the positioning column, and the pressure block is attached to the other side of the connecting plate opposite to the pin shaft.

[0012] As a preferred technical solution of the utility model, there is a gap between the positioning column and the positioning opening, and the link fits in the gap.

[0013] As a preferred technical solution of the utility model, the gap gradually expands in a direction away from the clamping plate.

[0014] The beneficial effects of the utility model are as follows:

[0015] The connecting ears 2 on the cylinder body 1 are placed between the two groups of clamps 3, and the connecting port is aligned with the plate opening 4, and the pin 5 is inserted into the connecting port and the plate opening 4 of the two groups of clamps 3 to connect them as one. Then, the locking assembly 7 stabilizes the position of the connecting plate 6 and the clamp 3 to improve the stability of the position of the pin 5. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the split structure;

[0018] Figure 3 yes Figure 1 A schematic diagram of a top-view cross-sectional structure;

[0019] Figure 4 yes Figure 3 Schematic diagram of the split structure.

[0020] Figure numerals: cylinder body -1, connecting ear -2, clamping plate -3, plate mouth -4, pin shaft -5, connecting plate -6, locking assembly -7, positioning mouth -71, positioning column -72, stabilizing assembly -73, pressure block -731, link -732. DETAILED DESCRIPTION Embodiment 1:

[0021] like Figures 1 to 4 As shown, this embodiment proposes: a high-stability oil cylinder fixing seat, comprising an oil cylinder body 1 and a connecting ear 2 fixed thereon, and a connecting port is provided on the connecting ear 2;

[0022] It also includes splints 3 (such as Figure 3 , 4 As shown, two groups of clamping plates 3 are symmetrically arranged on the front and rear sides of the connecting ear 2);

[0023] The plate opening 4 provided on the clamping plate 3 and the pin 5 (such as Figures 2~4 As shown, the plate opening 4 and the connecting opening are of the same size and are connected front to back, so that the pin 5 can fit in the plate opening 4 and the connecting opening from front to back for connection);

[0024] A connecting plate 6 fixed to one axial end of the pin shaft 5 and in contact with the clamping plate 3 and a locking assembly 7 for stabilizing the positions of the clamping plate 3 and the connecting plate 6 are connected and fixed by the connecting plate 6 and the pin shaft 5, thereby stabilizing the positions of the clamping plate 3 and the connecting plate 6, that is, improving the stability of the position of the pin shaft 5;

[0025] In order to implement the above locking assembly 7, it is proposed that Figure 3 , 4 As shown, the specific structure and composition of the locking assembly 7 can be as follows: the locking assembly 7 includes a positioning hole 71 provided on the connecting plate 6 and a positioning column 72 fixedly provided on the clamping plate 3 (such as Figures 2~4 As shown, the positioning opening 71 penetrates the connecting plate 6 from front to back, and the positioning column 72 is fixed on the front end of the clamping plate 3 on the front side);

[0026] The positioning post 72 moves in the positioning opening 71 by the axial movement of the pin shaft 5 to limit the rotation of the pin shaft 5 about its axis (according to the above, when the pin shaft 5 is inserted and moved from front to back, the positioning opening 71 on the connecting plate 6 moves to the positioning post 72 to surround it. At this time, the inside of the positioning opening 71 contacts the outside of the positioning post 72. When the pin shaft 5 tends to rotate along its axis, the connecting plate 6 can contact the positioning post 72 to limit it, thereby improving stability). Embodiment 2:

[0027] like Figures 1 to 4 As shown, the difference from Example 1 is that the locking assembly 7 also includes a stabilizing assembly 73 connected to the positioning column 72 and fitted to the connecting plate 6 to limit the displacement of the pin shaft 5 in the axial direction of the connecting plate 6 (as shown in the figure, that is, to limit the pin shaft 5 from moving out in the forward direction).

[0028] In order to implement the above locking assembly 7, it is proposed that Figure 3 , 4 As shown, the specific structure and composition of the locking assembly 7 can be as follows: the stabilizing assembly 73 includes a pressing block 731 and a link 732 fixed on the side facing the connecting plate 6 (the link 732 is fixed at the rear end of the pressing block 731) (as shown in FIG. Figure 1 , 3 As shown, the pressing block 731 may be a polygonal cylindrical block, which is convenient for operation and rotation similar to a bolt);

[0029] The connecting ring 732 is threadedly connected with the positioning column 72, and the pressing block 731 is attached to the other side of the connecting plate 6 relative to the pin 5. After being threadedly connected and fixed with the positioning column 72, it is moved backward to fit and press on the front end of the connecting plate 6, so as to stabilize the position of the connecting plate 6.

[0030] There is a gap between the positioning post 72 and the positioning opening 71, and the link 732 fits in the gap (according to the above, the solution of not using the positioning opening 71 to contact the outside of the positioning post 72 can make it more convenient to place the pin 5 on the periphery of the positioning post 72, without excessively precise alignment, which can simplify the operation of inserting the pin 5. When the link 732 connects the positioning post 72, it enters the gap for compression, which can also limit the rotation and shaking of the pin 5);

[0031] The gap gradually expands in the direction away from the clamping plate 3 (such as Figure 3 As shown, it provides a spatial guiding effect during insertion, making it easier for the chain 732 to be inserted into the gap).

[0032] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-stability oil cylinder fixing seat, comprising an oil cylinder body (1) and a connecting ear (2) fixed thereon, wherein the connecting ear (2) is provided with a connecting port; It is characterized in that It also includes clamping plates (3) symmetrically located on opposite sides of the connecting ear (2), a plate opening (4) provided on the clamping plate (3), a pin (5) simultaneously fitted and penetrating the connecting opening and the plate opening (4), a connecting plate (6) fixed to one axial end of the pin (5) and fitted to the clamping plate (3), and a locking assembly (7) for stabilizing the position of the clamping plate (3) and the connecting plate (6).

2. A high stability oil cylinder fixing seat according to claim 1, characterized in that: The locking assembly (7) comprises a positioning opening (71) provided on the connecting plate (6) and a positioning column (72) fixedly provided on the clamping plate (3); the positioning column (72) moves in the positioning opening (71) by the axial movement of the pin shaft (5) to restrict the pin shaft (5) from rotating about its axis.

3. A high stability oil cylinder fixing seat according to claim 2, characterized in that: The positioning post (72) is fitted into the positioning opening (71).

4. A high stability oil cylinder fixing seat according to claim 2 or 3, characterized in that: The locking assembly (7) further comprises a stabilizing assembly (73) connected to the positioning column (72) and abutting against the connecting plate (6) to limit the displacement of the pin shaft (5) in the axial end direction along the connecting plate (6).

5. A high stability oil cylinder fixing seat according to claim 4, characterized in that: The stabilizing assembly (73) comprises a pressing block (731) and a connecting ring (732) fixed on one side thereof facing the connecting plate (6), wherein the connecting ring (732) is threadedly connected to the positioning column (72), and the pressing block (731) is fitted on the other side of the connecting plate (6) opposite to the pin shaft (5).

6. A high stability oil cylinder fixing seat according to claim 5, characterized in that: There is a gap between the positioning post (72) and the positioning opening (71), and the link (732) fits in the gap.

7. A high stability oil cylinder fixing seat according to claim 6, characterized in that: The gap gradually expands in a direction away from the clamping plate (3).

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