Piston rod ear shot blasting protection tool

Abstract

A kind of piston rod ear ring shot blasting protection frock, including annular inner connecting plate and annular outer baffle, inner connecting plate is coaxially connected together with outer baffle, the tube wall of piston rod ear ring end is arranged between inner connecting plate and outer baffle, inner connecting plate is screwed together with ear ring end, outer baffle is located at the outer periphery of ear ring end, and nut is welded on the right end face of outer baffle.The utility model discloses a kind of piston rod ear ring shot blasting protection frock, and ear ring end threaded installation protection frock replaces original iron wire and rubber skin to play the role of protection, eliminates the quality hidden danger in processing process, reduces the labor intensity of worker, improves production efficiency, reduces production cost, is a kind of portable, durable and simple structure frock.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically a shot blasting protective fixture for piston rod ear rings. Background Technology

[0002] The pitch cylinder is used in container reach stackers, also known as reach cranes. Reach cranes are key equipment used for loading, unloading, stacking, and horizontal transport of containers. Because these cylinders are often used in high-salt, high-humidity environments such as ports, extremely high requirements are placed on paint adhesion. Therefore, the entire cylinder is assembled, shot-blasted, and then painted to ensure paint adhesion and quality.

[0003] Currently, the main method for protecting hydraulic cylinders before shot blasting is to wrap them with rubber and secure them with wire. This method has significant drawbacks: firstly, it is inefficient, severely restricting production progress and product delivery cycles; secondly, the shot blasting process easily damages the outer circumference of the piston rod and the dust seal of the hydraulic cylinder, creating potential quality issues. Furthermore, the rubber and wire cannot be recycled, resulting in high protection costs and increased labor intensity for workers, making it difficult to meet the demands of high-efficiency, low-cost production. Therefore, to ensure rapid production of hydraulic cylinders and meet customer delivery deadlines, designing a simple and lightweight tooling is essential. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a shot blasting protective fixture for piston rod earrings.

[0005] This utility model is achieved by the following technical solution: a shot blasting protective fixture for piston rod earrings, comprising an annular inner connecting plate and an annular outer baffle, wherein the inner connecting plate and the outer baffle are coaxially connected together, the tube wall of the piston rod earring end is disposed between the inner connecting plate and the outer baffle, the inner connecting plate is threadedly connected to the earring end, the outer baffle is located on the outer periphery of the earring end, and a nut is welded to the right end face of the outer baffle.

[0006] Furthermore, the inner connecting plate is made by hollowing out the inside of a round steel bar, and the inner connecting plate is provided with an external thread that is threaded to the end of the earring.

[0007] The inner connecting plate is provided with an end panel, and the outer baffle is fixed on the end panel.

[0008] The outer baffle and the end panel of the inner connecting plate are connected together by multiple evenly distributed intermittent welds.

[0009] The outer baffle is made of seamless tubing.

[0010] The outer baffle has a wall thickness of 5mm-8mm.

[0011] The axis of the nut coincides with the axis of the outer baffle.

[0012] The nut is a hexagonal nut, and the nut specification is M12-M20.

[0013] This utility model has the following advantages: The piston rod ear shot blasting protective fixture of this utility model replaces the original iron wire and rubber sheet with the protective fixture installed by the thread on the ear end to play a protective role, eliminates the quality risks in the processing process, reduces the labor intensity of workers, improves production efficiency, and reduces production costs. It is a lightweight, durable and simple tooling. Attached Figure Description

[0014] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is the left view of this utility model.

[0016] In the diagram: 1. Outer baffle, 2. Inner connecting plate, 3. Nut.

[0017] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figures 1 to 2 The piston rod ear ring shot blasting protective fixture shown includes an annular inner connecting plate 2 and an annular outer baffle 1. The inner connecting plate 2 and the outer baffle 1 are coaxially connected together. The tube wall of the piston rod ear ring end is disposed between the inner connecting plate 2 and the outer baffle 1. The inner connecting plate 2 is threadedly connected to the ear ring end. The outer baffle 1 is located on the outer periphery of the ear ring end. A nut 3 is welded to the right end face of the outer baffle 1. This utility model discloses a shot blasting protective fixture for piston rod ear rings, comprising an outer baffle, an inner connecting plate, and a nut. The inner connecting plate is internally connected to the piston rod ear ring end, and the outer baffle is located on the outer periphery of the piston rod ear ring end. In use, the external threaded end of the inner connecting plate is aligned with the threaded hole of the piston rod ear ring, and the nut at the end of the outer baffle is tightened using a tool to screw the inner connecting plate into the threaded hole of the piston rod ear ring, thus completing the fixture installation. After the shot blasting operation is completed, the nut is reversed to unscrew the inner connecting plate from the threaded hole of the piston rod ear ring, and the fixture can be removed. This fixture can be reused for subsequent shot blasting protection operations on hydraulic cylinders.

[0022] like Figures 1 to 2 The illustration shows a shot blasting protective fixture for a piston rod earring. The inner connecting plate 2 is made by hollowing out the inside of a round steel bar, and the inner connecting plate 2 has external threads that connect with the threaded end of the earring. The inner connecting plate of this invention is made by hollowing out the inside of a round steel bar and then machining external threads. The hollowed-out design of the inner connecting plate ensures the strength of the fixture while reducing its overall weight. The external threads are used to adapt and connect with the threaded hole at the end of the piston rod earring.

[0023] like Figures 1 to 2 The illustration shows a shot blasting protective fixture for a piston rod earring. The inner connecting plate 2 has an end panel, and the outer baffle 1 is fixed to the end panel. The outer baffle 1 and the end panel of the inner connecting plate 2 are connected together by multiple evenly distributed intermittent welds. The end panel of the inner connecting plate is a circular plate with a diameter larger than that of the outer baffle. The outer baffle and the end panel are connected together by four evenly distributed intermittent welds. These four intermittent welds ensure the assembly strength of the inner connecting plate and the outer baffle while reducing welding deformation.

[0024] like Figures 1 to 2The invention relates to a shot blasting protective fixture for a piston rod lug, wherein the outer baffle 1 is made of seamless tubing. The wall thickness of the outer baffle 1 is 5mm-8mm. The outer baffle of this invention is made of seamless tubing, and its outer circumferential dimensions match the outer circumferential dimensions of the piston rod lug, thus providing complete coverage of the easily damaged areas of the piston rod outer circumference and the cylinder dust seal.

[0025] like Figures 1 to 2 The illustration shows a shot blasting protective fixture for a piston rod lug, wherein the axis of the nut 3 coincides with the axis of the outer baffle 1. The nut 3 is a hexagonal nut, and its specification is M12-M20. The nut welded to the right end face of the outer baffle is used to cooperate with the eye bolt to realize the removal and tightening operation of the fixture. The axis of the nut coincides with the axis of the outer baffle to ensure balanced force when tightening the fixture through the nut.

[0026] The shot blasting protective fixture for piston rod earrings of this utility model has the following advantages: Significantly improved efficiency: The internal connecting plate's external thread quickly adapts to the piston rod lug end threaded hole, replacing the cumbersome operation of wrapping with rubber and securing with wire. This reduces the shot blasting protection time for a single hydraulic cylinder from 20 minutes / piece to 2 minutes / piece, increasing efficiency by 90%, effectively accelerating production progress, and ensuring on-time product delivery. Significantly reduced costs: In traditional protective methods, rubber sheets and iron wires cannot be recycled and reused, and the protection cost is about 5 yuan per piece. However, the tooling of this utility model can be reused and only requires simple maintenance after long-term use, reducing the protection cost to about 0.5 yuan per piece, a cost reduction of 90%, which significantly saves production costs for enterprises. Reliable protection effect: The outer baffle is made of seamless tube and is stably connected to the inner connecting plate by intermittent welding. It can fully cover the outer circle of the piston rod and the easily damaged area of ​​the oil cylinder dust seal, avoid workpiece damage during shot blasting, and completely eliminate potential quality hazards in the process. Easy and labor-saving operation: The hollow design inside the inner connecting plate reduces the weight of the tooling, and the nut on the right end of the outer baffle, together with the eye bolt, makes it easy to pick up and tighten, greatly reducing the labor intensity of workers and improving the comfort of operation; High versatility and expandability: The structural design concept of this utility model can provide a reference for shot blasting protection of other similar hydraulic cylinders. It can be adapted simply by adjusting the outer thread specification of the inner connecting plate and the size of the outer baffle according to the size of the lug of different hydraulic cylinders. It has strong promotion and application value.

[0027] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0028] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A shot blasting protective fixture for piston rod earrings, characterized in that: It includes an annular inner connecting plate (2) and an annular outer baffle (1). The inner connecting plate (2) and the outer baffle (1) are coaxially connected together. The tube wall of the piston rod ear ring end is set between the inner connecting plate (2) and the outer baffle (1). The inner connecting plate (2) is threadedly connected to the ear ring end. The outer baffle (1) is located on the outer periphery of the ear ring end. A nut (3) is welded to the right end face of the outer baffle (1).

2. The shot blasting protective fixture for piston rod earrings as described in claim 1, characterized in that: The inner connecting plate (2) is made by hollowing out the inside of a round steel bar, and the inner connecting plate (2) is provided with an external thread that is threaded to the end of the earring.

3. The shot blasting protective fixture for piston rod earrings as described in claim 1, characterized in that: The inner connecting plate (2) is provided with an end panel, and the outer baffle (1) is fixed on the end panel.

4. The shot blasting protective fixture for piston rod earrings as described in claim 3, characterized in that: The outer baffle (1) and the end panel of the inner connecting plate (2) are connected together by multiple intermittent welds evenly distributed throughout.

5. The shot blasting protective fixture for piston rod earrings as described in claim 1, characterized in that: The outer baffle (1) is made of seamless tubing.

6. The shot blasting protective fixture for piston rod earrings as described in claim 1, characterized in that: The wall thickness of the outer baffle (1) is 5mm-8mm.

7. The shot blasting protective fixture for piston rod earrings as described in claim 1, characterized in that: The axis of the nut (3) coincides with the axis of the outer baffle (1).

8. The shot blasting protective fixture for piston rod earrings as described in claim 1, characterized in that: The nut (3) is a hexagonal nut, and the specification of the nut is M12-M20.

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