A limiting structure for a mounting base type hydraulic cylinder

Abstract

This utility model provides a limiting structure for a mounting base type hydraulic cylinder, relating to the field of hydraulic transmission technology. It includes a limiting base, composed of a base plate and surrounding baffles. The base plate has threaded holes corresponding to the mounting holes of the hydraulic cylinder. The inner frame dimensions of the limiting base match the dimensions of the hydraulic cylinder's base, allowing the hydraulic cylinder to be installed in a horizontal slot within the limiting base. The limiting base has machining areas on its front and rear sides in the hydraulic cylinder's mounting direction. Each of the four corners of the surrounding baffles of the limiting base has two set screw holes, and the bottom of the limiting base has welded chamfered edges on all four sides. This utility model effectively solves the technical problem of bolt breakage in traditional stop block designs, ensuring long-term stable operation of the hydraulic cylinder and reducing the failure rate.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic transmission technology, and more particularly to a limiting structure for a mounting base type hydraulic cylinder. Background Technology

[0002] Base-mounted hydraulic cylinders are widely used in industrial equipment and are typically mounted using four base bolts. However, these bolts inevitably experience shear forces during cylinder operation. The traditional solution is to weld a stop block behind the cylinder's base to counteract forces parallel to the cylinder's axis and prevent bolt breakage.

[0003] However, in actual operation, hydraulic cylinders are often subjected to multi-directional loads that are not parallel to their axes. The welded stop block can only resist forces in one direction and cannot eliminate shear forces in other directions. This leads to frequent breakage of the fixing bolts and frequent accidents of hydraulic cylinders falling off. More seriously, broken bolts remain inside the mounting holes, making it extremely difficult to remove broken threads. Each accident requires more than 5 hours of downtime for repairs, causing prolonged equipment downtime and severely restricting production efficiency.

[0004] Therefore, there is an urgent need for a base limiting structure that can fully offset multi-directional shear forces, prevent bolt breakage, and is easy to maintain, in order to solve the technical defects of traditional stop block solutions. Utility Model Content

[0005] To address the aforementioned technical issues, a limiting structure for a mounting base type hydraulic cylinder is provided. This structure eliminates multi-directional clearances in the hydraulic cylinder through a horizontal groove mounting structure and a set screw hole, thereby preventing the bolts from bearing shear forces.

[0006] To achieve the above objectives, this utility model provides a limiting structure for a mounting base type hydraulic cylinder, comprising: a limiting base, consisting of a base plate and surrounding baffles; the base plate is provided with threaded holes corresponding to the mounting holes of the hydraulic cylinder; the inner frame size of the limiting base matches the base size of the hydraulic cylinder, so that the hydraulic cylinder is installed in the limiting base in a horizontal groove.

[0007] Furthermore, the limiting base has machining areas on the front and rear sides in the installation direction of the hydraulic cylinder. The shape of the machining areas is designed according to the shape of the hydraulic cylinder, and the size is larger than the shape of the hydraulic cylinder.

[0008] Furthermore, each of the four corners of the surrounding baffle of the limiting base has two set screw holes, for a total of eight set screw holes; the set screw holes are used to install set screws, so that the set screws are pressed against the bottom foot of the hydraulic cylinder to eliminate the installation gap.

[0009] Furthermore, the bottom four sides of the limiting base are provided with welding bevels, which are used to fix the limiting base to the unit base by welding and increase the structural strength after welding.

[0010] Furthermore, the relative positional accuracy deviation of the threaded holes on the base plate is less than 0.1 mm.

[0011] Furthermore, the hydraulic cylinder is fixed to the threaded hole in the base plate by bolts and locked to the set screw hole by set screws, forming a clearance-free fit.

[0012] By adopting the above technical solution, this utility model has the following advantages compared with the prior art: 1. The present invention provides a limiting structure for a mounting base type hydraulic cylinder. By using the horizontal groove mounting structure of the limiting base and eight set screw holes to tighten the cylinder body foot, the multi-directional clearance of the hydraulic cylinder is completely eliminated, so that the bolt no longer bears shear force, thus fundamentally preventing bolt breakage accidents.

[0013] 2. The present invention provides a limiting structure for a hydraulic cylinder with a mounting base. The limiting base has an integrated structure of baffles around its perimeter and a welded bevel design, which enhances its resistance to multi-directional loads, ensures long-term stable operation of the hydraulic cylinder, and reduces the failure rate.

[0014] 3. The limiting structure of the mounting base type hydraulic cylinder provided by this utility model achieves bidirectional mechanical locking of the four corners of the hydraulic cylinder base through the symmetrical distribution design of eight set screw holes, eliminating the fit clearance caused by running vibration and avoiding the bolts from bearing dynamic shear loads. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view of the limiting structure of a mounting base type hydraulic cylinder according to this utility model; Figure 2 This is a side view of the limiting structure of a mounting base type hydraulic cylinder according to this utility model.

[0017] In the diagram: 1. Base plate; 2. Baffle; 3. Machining area; 4. Set screw hole; 5. Bevel chamfer; 6. Threaded hole. Detailed Implementation

[0018] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0023] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0025] like Figures 1 to 2 As shown, this utility model provides a limiting structure for a mounting base type hydraulic cylinder, including: a limiting base, which is composed of a base plate 1 integrally formed of high-strength steel and surrounding baffles 2; the base plate 1 is provided with threaded holes 6 corresponding to the mounting holes of the hydraulic cylinder, and the position is precisely corresponding to the mounting holes of the hydraulic cylinder. The inner frame size of the limiting base matches the base size of the hydraulic cylinder, allowing the hydraulic cylinder to be installed in the limiting base in a horizontal slot. The entire force of the hydraulic cylinder is borne by the limiting base, and the bolts no longer bear shear force, thus completely avoiding bolt breakage accidents.

[0026] Furthermore, the limiting base is provided with machining areas 3 on the front and rear sides of the hydraulic cylinder installation direction. The shape of the machining areas 3 is designed according to the shape of the hydraulic cylinder and the size is larger than the shape of the hydraulic cylinder. There is no structural interference during installation, eliminating the risk of installation interference and ensuring that the hydraulic cylinder can be smoothly embedded into the horizontal groove structure. At the same time, it avoids uneven force on the hydraulic cylinder due to size errors.

[0027] Furthermore, each of the four corners of the four baffles 2 of the limiting base has two set screw holes 4, for a total of eight set screw holes 4; the set screw holes 4 are used to install set screws, so that the set screws are pressed against the bottom foot of the hydraulic cylinder to eliminate the installation gap, form a gapless fit, prevent the hydraulic cylinder from micro-movement, and reinforce the hydraulic cylinder in a secondary way to ensure that the shearing force is completely borne by the limiting base.

[0028] Furthermore, the bottom four sides of the limiting base are provided with welding bevel chamfers 5, which are used to fix the limiting base to the unit base by welding, and increase the structural strength after welding, prevent the base from falling off, enhance the overall stability after welding, and improve the vibration resistance.

[0029] Furthermore, the relative positional accuracy deviation of the threaded holes 6 on the base plate 1 is less than 0.1mm, ensuring that the bolt holes and hydraulic cylinder mounting holes are precisely aligned, avoiding stress concentration during bolt installation, preventing breakage caused by uneven preload, improving the repeatability of hydraulic cylinder installation, and reducing debugging time.

[0030] Furthermore, the hydraulic cylinder is fixed to the threaded hole 6 of the base plate 1 by bolts and locked to the set screw hole 4 by set screws to form a clearance-free fit.

[0031] In actual use of this embodiment: the limiting base is fixed to the unit base by welding. Before welding, ensure that the chamfer of the welding bevel is properly treated. After welding, check the quality of the weld to ensure that it is firm and free of defects. The hydraulic cylinder is installed in the limiting base in a horizontal slot. The four feet of the hydraulic cylinder match the dimensions of the inner frame of the limiting base to form a transition fit. The hydraulic cylinder is fixed in the threaded hole 6 of the base plate 1 with bolts and the bolts are tightened to the specified torque. Set screws are installed in the eight set screw holes 4. The set screws are tightened to make the set screws press against the bottom feet of the hydraulic cylinder, eliminating the installation gap and forming a gapless fit. Debug the equipment and check whether the hydraulic cylinder runs smoothly without abnormal vibration or deviation.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hydraulic cylinder with a mounting base type limit structure, characterized by, include: The limiting base consists of a base plate and surrounding baffles; the base plate is provided with threaded holes corresponding to the mounting holes of the hydraulic cylinder; the inner frame size of the limiting base matches the base size of the hydraulic cylinder, so that the hydraulic cylinder is installed in the limiting base in a horizontal slot.

2. The hydraulic cylinder with a mounting base type limiting structure according to claim 1, characterized in that, The limiting base has machining areas on the front and rear sides of the hydraulic cylinder installation direction. The shape of the machining areas is designed according to the shape of the hydraulic cylinder, and the size is larger than the shape of the hydraulic cylinder.

3. The hydraulic cylinder with a mounting base type limiting structure according to claim 1, characterized in that, The limiting base has two set screw holes at each of the four corners of the surrounding baffle, for a total of eight set screw holes; the set screw holes are used to install set screws so that the set screws are pressed against the bottom foot of the hydraulic cylinder to eliminate the installation gap.

4. The hydraulic cylinder with a mounting base type limiting structure according to claim 1, characterized in that, The bottom of the limiting base is provided with welding bevels on all four sides, which are used to fix the limiting base to the unit base by welding and increase the structural strength after welding.

5. The hydraulic cylinder with a mounting base type limiting structure according to claim 1, characterized in that, The relative positional accuracy deviation of the threaded holes on the base plate is less than 0.1 mm.

6. The hydraulic cylinder with a mounting base type limiting structure according to claim 1, characterized in that, The hydraulic cylinder is fixed to the threaded hole in the base plate by bolts and locked to the set screw hole by set screws to form a clearance-free fit.

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