Auxiliary device for measuring oil cylinder installation distance of mining dump truck

Abstract

The utility model discloses an auxiliary device for measuring the installation distance of an oil cylinder of a mining dump truck. The auxiliary device comprises a positioning main plate, a pair of limiting assemblies and a rod-shaped component, the length of the positioning main plate is consistent with the span of the oil cylinder mounting support, and the positioning main plate is used for left-right positioning of the positioning main plate; the two limiting assemblies are fixed to the inner side vertical face, facing the oil cylinder chassis support, of the positioning main plate in a spaced mode, the pin shaft outer side structural part located on the oil cylinder chassis support is located between the two limiting assemblies, and the limiting assemblies can be connected to rib plates of the oil cylinder chassis support in a clamped mode and used for up-down positioning of the positioning main plate. The bottom face of the rod-shaped component is fixed to the center area of the outer side vertical face of the positioning main plate and extends outwards in the mode of being perpendicular to the outer side vertical face. According to the utility model, the actual installation distance of the oil cylinder can be rapidly and accurately measured, the installation distance range can be timely adjusted, the damage rate of the oil cylinder is reduced, and the satisfaction of customers is improved.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for measuring the installation distance of hydraulic cylinders in mining dump trucks, and belongs to the technical field of mining dump trucks. Background Technology

[0002] In the domestic market, front-mounted direct-push lifting mechanisms, i.e., FC single-cylinder front lifters, are commonly used as lifting components for three-axle rigid mining cars. These cylinders offer advantages such as affordability, stable lifting, and even force distribution, making them cost-effective and technologically mature. The anti-wear ring in this type of cylinder is a crucial component. Its wear resistance, pressure resistance, and high-temperature resistance not only improve the efficiency of the hydraulic system and extend the machine's lifespan but also reduce the frequency of cylinder maintenance and repair by decreasing friction between the cylinder rod and the outer sleeve. The welding position of the anti-wear ring determines the installation distance during cylinder assembly. The cylinder installation distance should be maintained within a certain range. Excessive installation distance results in greater initial impact force between the lifting cylinders. Experience has shown that excessive factory installation distances cause frequent and significant swaying of the cylinder outer sleeve, transmitting lateral force to the piston rod tip, easily leading to piston rod breakage and unavoidable accidents. Similarly, insufficient installation distance prevents the cylinder from reaching the bottom, causing the anti-wear ring on the cylinder body to wear through quickly, resulting in cylinder damage. Both situations can cause incalculable losses to customers.

[0003] Therefore, controlling the installation distance of the hydraulic cylinders during installation and regularly checking for abnormal installation distances in the mining area are crucial to preventing problems before they occur. However, due to the large size of the outer sleeve, especially for super-lifting hydraulic cylinders, not only is the wall thickness of the outer sleeve increased, but the outer diameter is also increased. This causes the upper and lower trunnions of the hydraulic cylinder to not be in the same vertical plane, making it impossible to accurately measure the vertical installation distance of the hydraulic cylinder using existing tools (rulers, vernier calipers, and tape measures). Furthermore, the variety of hydraulic cylinder types, chassis supports, and lifting brackets also makes the conversion of this installation distance dimension quite difficult. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides an auxiliary device for measuring the installation distance of hydraulic cylinders in mining dump trucks. This device ensures that the actual installation distance of the hydraulic cylinders can be measured quickly and accurately, allowing for timely adjustment of the installation distance range, reducing the damage rate of the hydraulic cylinders, and improving customer satisfaction.

[0005] This utility model is achieved according to the following technical solution:

[0006] An auxiliary device for measuring the installation distance of hydraulic cylinders on a mining dump truck includes:

[0007] The positioning main board has a length that matches the distance of the cylinder mounting bracket and is used for left and right positioning of the positioning main board.

[0008] A pair of opposing limiting components are fixed at intervals on the inner side of the positioning main board facing the cylinder chassis bracket. The outer structural component of the pin on the cylinder chassis bracket is located between the two limiting components. The limiting components can be engaged with the stiffening plate of the cylinder chassis bracket for positioning the main board vertically.

[0009] The rod-shaped component has its bottom surface fixed to the central area of ​​the outer facade of the positioning main plate, and extends outward perpendicularly to the outer facade. It is used to determine the center point of the pin on the cylinder chassis bracket and to move the center position of the lower hinge point to the same plane as the upper hinge point.

[0010] In some embodiments, the limiting component consists of limiting blocks arranged at intervals; the distance between the upper and lower limiting blocks is consistent with the thickness of the stiffening plate on the cylinder chassis bracket.

[0011] In some embodiments, the rod-shaped member is equipped with an extension member arranged coaxially therewith, for further moving the center position of the lower hinge point outward to match different types of hydraulic cylinders.

[0012] In some embodiments, the outer end face of the rod-shaped component is provided with an inwardly extending light hole, and the extension component is a round rod that is tightly fitted into the light hole, and the position of the outer end of the round rod is adjusted by the depth of insertion.

[0013] In some embodiments, the outer end face of the rod-shaped component is provided with an inwardly extending threaded hole, and the extension component is a bolt that is screwed into the threaded hole, and the position of the outer end of the bolt is adjusted by the depth of screwing.

[0014] In some embodiments, the bolt is an internal hex bolt.

[0015] In some embodiments, the positioning motherboard is a rectangular plate, and the two limiting components are arranged symmetrically about the center line of the positioning motherboard in its length direction.

[0016] In some embodiments, the auxiliary device has a symmetrical structure both vertically and horizontally.

[0017] In some embodiments, the positioning motherboard, the two limiting components, and the rod-shaped component are welded together or integrally cast.

[0018] The beneficial effects of this utility model are:

[0019] This invention has a simple structure and low manufacturing cost. It can quickly and accurately measure the actual installation distance of the hydraulic cylinder, adjust the installation distance range in a timely manner, reduce the damage rate of the hydraulic cylinder, and improve customer satisfaction. Attached Figure Description

[0020] 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.

[0021] In the attached diagram:

[0022] Figure 1 This is an isometric drawing of the auxiliary device for measuring the installation distance of the hydraulic cylinder in a mining dump truck according to this utility model.

[0023] Figure 2 This is a front view of the auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to this utility model;

[0024] Figure 3 This is a schematic diagram showing the cooperation between the auxiliary device for measuring the installation distance of the hydraulic cylinder in the mining dump truck of this utility model and the hydraulic cylinder chassis bracket.

[0025] Figure 4 This is a schematic diagram illustrating the application of the auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to this utility model. Figure 1 ;

[0026] Figure 5 This is a schematic diagram illustrating the application of the auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to this utility model. Figure 2 ;

[0027] Figure 6 This is a schematic diagram illustrating the application of the auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to this utility model. Figure 3 .

[0028] Attached diagram labels: 1. Hydraulic cylinder, 2. Hydraulic cylinder lifting bracket, 3. Hydraulic cylinder chassis bracket, 4. Auxiliary device, 5. Bolt, 6. Hydraulic cylinder mounting support, 7. Rib plate, 8. Outer structural component of pin shaft, 4.1 Positioning main board, 4.2 Limiting assembly, 4.3 Rod-shaped component.

[0029] 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

[0030] 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.

[0031] 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.

[0032] 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.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an auxiliary device 4 for measuring the installation distance of a hydraulic cylinder in a mining dump truck includes a positioning main plate 4.1, a pair of opposing limiting components 4.2, and a rod-shaped component 4.3. The length L1 of the positioning main plate 4.1 is consistent with the distance of the hydraulic cylinder mounting support 6, and is used for left and right positioning of the positioning main plate 4.1. The two limiting components 4.2 are fixed at intervals on the inner vertical surface of the positioning main plate 4.1 facing the hydraulic cylinder chassis bracket 3. The outer structural component 8 of the pin shaft on the hydraulic cylinder chassis bracket 3 is located between the two limiting components 4.2 (i.e., between the two limiting components 4.2). The spacing L2 between the two needs to leave room for the position of the outer structural component 8 of the pin shaft. The limiting component 4.2 can be snapped onto the stiffening plate 7 of the cylinder chassis bracket 3 to position the upper and lower parts of the main board 4.1. The bottom surface of the rod-shaped component 4.3 is fixed to the center area of ​​the outer facade of the positioning main board 4.1 and extends outward perpendicularly to the outer facade. On the one hand, it is used to determine the center point of the pin shaft on the cylinder chassis bracket 3, and on the other hand, it is used to move the center position of the lower hinge point to the same plane as the upper hinge point (i.e., the trunnion at the cylinder lifting bracket 2) for easy measurement.

[0034] The preferred solution will continue to be referenced. Figure 1 , Figure 2As shown, the positioning main plate 4.1 is a rectangular plate, its width slightly smaller than the width of the cylinder chassis bracket 3, its length set to the clearance dimension of the cylinder mounting bracket 6, and its thickness 6mm-8mm. The auxiliary device 4 has a symmetrical structure both vertically and horizontally. The positioning main plate 4.1, two limiting components 4.2, and rod-shaped component 4.3 are welded together or integrally cast. The rod-shaped component 4.3 is fixed at the center of the positioning main plate 4.1, with a length of 40mm and a diameter of 10mm.

[0035] The following provides a further explanation of the aforementioned limiting components.

[0036] Continue to refer to Figure 1 , Figure 2 , Figure 3 As shown, the limiting component 4.2 consists of limiting blocks arranged at intervals between the upper and lower parts; the distance d between the upper and lower limiting blocks is consistent with the thickness of the stiffening plate 7 on the cylinder chassis bracket 3, which makes it convenient for the limiting blocks on both sides to be accurately engaged in the middle of the cylinder chassis bracket 3.

[0037] Further plans will continue to be considered. Figure 1 , Figure 2 As shown, an extension component is mounted on the rod-shaped component 4.3, which is arranged coaxially with it, to further move the center position of the lower hinge point outward to match different types of hydraulic cylinders 1.

[0038] In a preferred embodiment, the outer end face of the rod-shaped component 4.3 is provided with an inwardly extending light hole, and the extension component is a round rod that is tightly fitted into the light hole, and the position of the outer end of the round rod is adjusted by the depth of insertion.

[0039] In the preferred embodiment, the outer end face of the rod-shaped component 4.3 is provided with an inwardly extending threaded hole, and the extension component is a bolt 5, which is screwed into the threaded hole, and the position of the outer end of the bolt 5 is adjusted by the depth of screwing.

[0040] In a further optimized design, bolt 5 is an internal hex bolt.

[0041] Further plans will continue to be considered. Figure 1 , Figure 2 As shown, the positioning motherboard 4.1 is a rectangular plate, and the two limiting components 4.2 are arranged symmetrically on the left and right sides of the center line of the positioning motherboard in the length direction.

[0042] The measurement process of the auxiliary device 4 described above is given below:

[0043] During measurement, the handheld auxiliary device 4 is inserted into the gap between the cylinder chassis bracket 3 and the cylinder chassis bracket 3. The auxiliary device 4 is in close contact with the cylinder chassis bracket 3. Figure 4 As shown. If the cylinder mounting bracket 3 has a lifting plate, the size of the auxiliary device 4 needs to be controlled within a reasonable clearance to avoid the situation where it cannot be inserted, such as... Figure 5 As shown.

[0044] Bolt 5 is used when cylinder 1 is a super-reinforced cylinder. In this case, the distance between the upper and lower trunnions is larger, and bolt 5 can be screwed into the rod-shaped component 4.3, such as... Figure 3 As shown, based on the size, it automatically adjusts until the two center points are on the same horizontal plane, as... Figure 6 As shown in the image. At this point, a vernier caliper or flexible measuring tape can be used to directly measure the cylinder mounting distance. If the mounting distance does not meet the requirements, adjustments can be made promptly to avoid greater losses.

[0045] 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.

[0046] 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.

[0047] 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. An auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck, characterized in that, include: The positioning main board has a length that matches the distance of the cylinder mounting bracket and is used for left and right positioning of the positioning main board. A pair of opposing limiting components are fixed at intervals on the inner side of the positioning main board facing the cylinder chassis bracket. The outer structural component of the pin on the cylinder chassis bracket is located between the two limiting components. The limiting components can be engaged with the stiffening plate of the cylinder chassis bracket for positioning the main board vertically. The rod-shaped component has its bottom surface fixed to the central area of ​​the outer facade of the positioning main plate, and extends outward perpendicularly to the outer facade. It is used to determine the center point of the pin on the cylinder chassis bracket and to move the center position of the lower hinge point to the same plane as the upper hinge point.

2. The auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to claim 1, characterized in that: The limiting component consists of limiting blocks arranged at intervals; the distance between the upper and lower limiting blocks is consistent with the thickness of the stiffening plate on the cylinder chassis support.

3. The auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to claim 1, characterized in that: An extension component is mounted on the rod-shaped component, which is arranged coaxially with it, to further move the center position of the lower hinge point outward to match different types of hydraulic cylinders.

4. The auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to claim 3, characterized in that: The outer end face of the rod-shaped component is provided with an inwardly extending light hole. The extension component is a round rod, which is inserted into the light hole in a tight fit manner, and the position of the outer end of the round rod is adjusted by the depth of insertion.

5. The auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to claim 3, characterized in that: The outer end face of the rod-shaped component is provided with an inwardly extending threaded hole. The extension component is a bolt, which is screwed into the threaded hole, and the position of the outer end of the bolt is adjusted by the depth of screwing.

6. The auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to claim 5, characterized in that: The bolts are internal hex bolts.

7. The auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to claim 1, characterized in that: The positioning motherboard is a rectangular plate, and the two limiting components are arranged symmetrically about the center line of the positioning motherboard in its length direction.

8. The auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to claim 1, characterized in that: The auxiliary device has a symmetrical structure both vertically and horizontally.

9. The auxiliary device for measuring the installation distance of hydraulic cylinders in a mining dump truck according to claim 1, characterized in that: The positioning motherboard, two limiting components, and rod-shaped parts are either welded together or integrally cast.

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