A manufacturing piece for forming a hydraulic support push rod connecting seat

Abstract

The utility model relates to a hydraulic support technical field especially relates to a kind of manufacturing pieces for forming the manufacturing piece of hydraulic support push rod connecting seat, it includes: base, first support and second support;The first support and the second support are fixedly arranged on the upper surface of the base, and the first support and the second support form open slot between, and the open slot is used to connect the push rod of hydraulic support;The second support is equipped with boss towards the side wall of the open slot, the boss is used for drilling positioning, and the axis of the boss is coaxial with the connecting hole to be processed. By setting boss in open slot, it is convenient to assist drill bit positioning when drilling, eliminates the process of cutting reinforcement bar and root, can shorten the processing time of workpiece, blanking cutting is simpler, improve production efficiency. Since it is not necessary to additionally cut the pre-reserved reinforcement bar when drilling, reduce the cutting amount of drill bit when drilling, reduce the wear of equipment and tool.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic support technology, and in particular to a manufacturing part for forming a hydraulic support push rod connecting seat. Background Technology

[0002] The push rod is the connecting carrier in the hydraulic support's pushing and moving mechanism. It mainly completes the pushing and moving functions by extending and retracting the pushing jack. The connecting seat is an important force-bearing component in the push rod, which plays the role of positioning and locking the pushing jack. It is usually made of high-strength steel plate or forged billet.

[0003] Among them, forming the connecting hole 4 for installing the pin is a relatively complicated step in the processing procedure. The existing technology usually requires reserving a tie rod in the opening groove according to the position of the hole to be drilled. The tie rod is reserved when cutting the whole connecting seat, and then the hole is cold-drilled. After the hole is drilled, the reserved tie rod is cut. The cutting requires two gun lifting, which is complicated and easy to produce shape deviation.

[0004] During drilling, the cutting volume is large because the tool needs to pass through the pre-reserved tie rod, resulting in severe tool wear, increased production costs, more transfers during production, and a longer processing cycle. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a manufacturing part for forming a hydraulic support push rod connecting seat, which solves the technical problem of the cumbersome drilling and positioning process of the existing connecting seat.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] A manufacturing part for forming a hydraulic support push rod connector includes: a base, a first support, and a second support;

[0010] The first support and the second support are fixedly disposed on the upper surface of the base, and an opening groove is formed between the first support and the second support, the opening groove being used to connect the push rod of the hydraulic support;

[0011] The second support has a boss on the side wall facing the opening slot. The boss is used for drilling positioning, and the axis of the boss is coaxial with the connecting hole to be processed.

[0012] The first support has a continuous first inclined surface and a second inclined surface on the side wall away from the opening slot, and the first inclined surface is smoothly connected to the upper surface of the base.

[0013] The boss is an inclined square columnar structure, and the upper surface of the boss is parallel to the second inclined surface.

[0014] The connecting hole passes through the first inclined surface, the boss, and the second support, and the axis of the connecting hole is perpendicular to the upper surface of the second inclined surface and the boss.

[0015] The axis of the connecting hole is located on the center line of symmetry of the second inclined surface.

[0016] The angle between the second inclined surface and the horizontal plane is 40° to 45°, and the upper surface of the boss has the same angle with the horizontal plane.

[0017] The width L of the boss satisfies:

[0018] L = b + 10 mm;

[0019] Where b is the diameter of the connecting hole.

[0020] The base, the first support, and the second support are integrally formed structures, and the opposite sides of the first support and the second support form an opening groove with an arc-shaped transition surface at the bottom of the base.

[0021] The top height of the first support is lower than the top height of the second support.

[0022] (III) Beneficial Effects

[0023] The beneficial effects of this utility model are: the manufacturing parts for forming the hydraulic support push rod connecting seat provided by this utility model are integrally formed with the base, the first support and the second support, avoiding the stress concentration problem caused by welding or bolt connection, the overall structure is more solid, can withstand the high load impact of the hydraulic support push rod, and has strong structural stability and high load-bearing capacity.

[0024] By setting a boss in the opening slot, the drill bit is positioned more easily during drilling, ensuring accurate machining of the connecting hole. Compared to the existing structure with pre-reserved tie rods, this eliminates the need for cutting tie rods and cleaning the root, simplifying material cutting, facilitating dimensional accuracy control, shortening workpiece machining time, and improving production efficiency. Since no additional cutting of the pre-reserved tie rods is required during drilling, the amount of cutting by the drill bit is reduced, minimizing wear on equipment and tools. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the manufacturing part of this utility model;

[0026] Figure 2 for Figure 1 A partial side view at point A in the center frame;

[0027] Figure 3 This is a schematic diagram of the structure of the manufactured part of this utility model placed on the pad during drilling.

[0028] [Explanation of Labels in the Attached Image]

[0029] 1: Base;

[0030] 2: First support; 21: First inclined surface; 22: Second inclined surface;

[0031] 3: Second support; 31: Boss;

[0032] 4: Connecting holes;

[0033] 5: Tire padding. Detailed Implementation

[0034] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] In the traditional machining of hydraulic support push rod connectors, tie rods are pre-installed in the slots of the connector. These tie rods are pre-installed when cutting the entire connector. During drilling, the drill bit passes through one support, the pre-installed tie rod, and another support in sequence. The drill bit needs to completely pass through the pre-installed tie rod, resulting in a large cutting volume. After drilling, the pre-installed tie rod needs to be further removed, requiring two separate cutting operations to both ends of the tie rod. Additionally, root cleaning is required. This complex machining process is prone to causing shape deviations and affecting the product qualification rate.

[0036] Therefore, this utility model proposes a manufacturing part for forming a hydraulic support push rod connecting seat, including a base 1, a first support 2, and a second support 3. An opening groove is formed between the first support 2 and the second support 3. A boss 31 is provided on the side wall of the second support 3 facing the opening groove, and the axis of the boss 31 is coaxial with the connecting hole 4 to be machined. By setting the boss 31 to assist in drilling positioning, the position of the connecting hole 4 is ensured to be accurately machined, avoiding assembly errors. At the same time, it eliminates the need for two cutting operations at the connection between the reserved tie rod and the inner wall of the opening groove in the machining process, reducing the overall machining time, improving production efficiency, and thus improving assembly efficiency.

[0037] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0038] See appendix Figure 1This utility model provides a manufacturing part for forming a hydraulic support push rod connecting seat, including a base 1, a first support 2, and a second support 3. The first support 2 and the second support 3 are fixedly disposed on the upper surface of the base 1, and an opening groove is formed between the first support 2 and the second support 3 for connecting the push rod of the hydraulic support. The second support 3 has a boss 31 on its side wall facing the opening groove. The boss 31 is used for drilling positioning, and the axis of the boss 31 is coaxial with the connecting hole 4 to be processed later. Through the base 1 and the double support design, a stable support structure is formed to ensure the rigidity of the push rod connection and prevent deformation, thereby improving the structural stability of the connecting seat. By setting the drilling position in advance by setting the boss 31, the position of the connecting hole 4 is ensured to be accurate during subsequent processing, avoiding assembly errors. At the same time, by setting the drilling positioning of the connecting hole 4 by setting the boss 31, the two cuttings at the connection between the reserved tie rod and the inner wall of the opening groove are eliminated in the processing process, reducing the overall processing time, improving production efficiency, and thus improving assembly efficiency.

[0039] The sidewall of the first support 2 has a continuous first inclined surface 21 and a second inclined surface 22, with the first inclined surface 21 smoothly connecting to the upper surface of the base 1. The inclined surfaces prevent interference when the jack retracts and facilitate the installation and removal of the pins. Furthermore, the continuous inclined surface transition reduces stress concentration, dispersing stress and preventing fatigue cracks caused by the reciprocating motion of the push rod. The smooth connection reduces the accumulation of hydraulic oil or dust, lowering maintenance frequency. The inclined surface design reduces material usage while maintaining strength, thus lowering costs.

[0040] The boss 31 is an inclined square columnar structure, with its upper surface parallel to the second inclined surface 22. The connecting hole 4 passes through the first inclined surface 21, the boss 31, and the second support 3, and its axis is perpendicular to the second inclined surface 22 and the upper surface of the boss 31. By setting the boss 31 parallel to the second inclined surface 22, it is ensured that the boss 31 provides accurate positioning for the drill bit during drilling, improving processing convenience and drilling accuracy. The connecting hole 4 is perpendicular to the second inclined surface 22, so that the force direction of the pin is consistent with the axis of the hole, avoiding off-center wear.

[0041] See appendix Figure 2 The axis of connecting hole 4 is located on the center line of symmetry of the second inclined surface 22, which reduces wear on the pin and connecting hole caused by eccentric force and improves the durability of the component. The symmetrical center arrangement makes the force on both sides of the push rod uniform, preventing unilateral overload from causing support deformation.

[0042] The second inclined surface 22 forms an angle of 40° to 45° with the horizontal plane, and the angle between the upper surface of the boss 31 and the horizontal plane is the same as the angle between the second inclined surface 22 and the horizontal plane. By setting a reasonable angle range, the resistance of the push rod during extension and retraction is minimized, which can improve the response speed of the hydraulic system. The inclination angle takes into account both structural strength and the push rod's movement requirements, avoiding stress concentration due to an excessively large angle or affecting the stroke due to an excessively small angle.

[0043] The width L of the boss 31 satisfies: L = b + 10mm (b is the diameter of the connecting hole 4). The connecting hole 4 is located at the center of the boss (at the center line of symmetry), meaning that a 5mm distance is reserved on both sides of the connecting hole 4. This 5mm allowance on each side ensures drill bit stability during drilling, preventing edge chipping or positional deviation. A sufficiently wide boss provides stronger support, preventing cracking of the material around the connecting hole.

[0044] The base 1, first support 2, and second support 3 are integrally molded, with the bottom of the opening groove featuring an arc-shaped transition surface. This one-piece molding eliminates weld seams, removing weak points and enhancing load-bearing capacity. The arc-shaped transition surface reduces stress concentration, extends service life, and is suitable for mass production.

[0045] The top of the first support 2 is lower than that of the second support 3. As an anti-detachment design, the height difference forms a natural limit for the push rod, and the push rod naturally fits into the second support 3 to prevent the push rod from detaching from the opening groove during vibration.

[0046] The present invention provides a manufacturing part for forming a hydraulic support push rod connecting seat. The base 1, the first support 2 and the second support 3 are integrally formed by cutting high-strength steel plate (or forging blank), which avoids the stress concentration problem caused by welding or bolt connection. The overall structure is more robust and can withstand the high load impact of the hydraulic support push rod. It has strong structural stability and high load-bearing capacity.

[0047] The bottom of the opening groove adopts an arc-shaped transition surface to reduce stress concentration, improve fatigue life, and avoid cracking or deformation caused by long-term stress.

[0048] The height of the first support 2 is lower than that of the second support 3, so that the force is more evenly distributed after the push rod is installed, reducing the risk of eccentric load.

[0049] The second support 3 has a boss 31 on its side wall for drilling positioning, which ensures that the connecting hole 4 is coaxial with the boss 31 during subsequent processing, improves processing accuracy, and avoids assembly difficulties caused by drilling offset.

[0050] The boss 31 has a reserved width on both sides of the connecting hole 4 to ensure the stability of the drill bit during drilling and avoid edge chipping or hole position deviation.

[0051] The side wall of the first support 2 adopts a continuous transition design of the first inclined surface 21 and the second inclined surface 22, which makes the force on the push rod smoother during the movement, reduces local stress concentration, optimizes the force distribution, reduces wear, and extends service life.

[0052] The second inclined surface 22 and the upper surface of the boss 31 are inclined at an angle of 40° to 45°, which makes the force direction of the push rod more reasonable during movement, reduces frictional resistance, and improves the flexibility of the hydraulic support.

[0053] The connecting hole 4 is perpendicular to the second inclined surface 22 and the upper surface of the boss 31, ensuring that the direction of force on the pin after installation is consistent with the axis of the hole, avoiding deformation or breakage of the pin due to off-center load, and improving reliability.

[0054] The connecting hole 4 is located on the center line of symmetry of the second inclined surface 22 to ensure the balance when the push rod is connected and to prevent excessive force on one side from causing structural damage.

[0055] The one-piece molding process reduces processing steps, improves production efficiency, and lowers manufacturing costs.

[0056] The boss 31 has a square columnar structure, which facilitates processing and inspection.

[0057] This invention optimizes structural design, improves positioning accuracy, and enhances stress distribution, resulting in a manufacturing component for forming a hydraulic support push rod connecting seat that has higher load-bearing capacity, longer service life, and more convenient assembly methods. It also reduces drilling operations and manufacturing costs, making it suitable for high-load, high-frequency hydraulic support applications.

[0058] See appendix Figure 3 The manufacturing process of the hydraulic support push rod connecting seat provided by this utility model involves the following steps: blanking and cutting, milling the hardened layer, and cold drilling. During blanking and cutting, the upper surface of the boss 31 needs to be parallel to the second inclined surface 22 of the first support 2. This parallelism is achieved through computer programming during CNC cutting. Because the hardened layer has high hardness and can affect the drill bit, potentially causing damage, the hardened layer is milled to a thickness of 2mm before drilling. Then, the center line of the hole to be drilled is manually drawn using a scriber. A radial drilling machine is used for drilling, with a support shim 5 placed on it and tilted to facilitate vertical drilling. Finally, the boss is milled according to the actual operating conditions and push rod design for subsequent push rod connection, forming the final hydraulic support push rod connecting seat.

[0059] By pre-reserving a boss 31 in the opening slot during blanking, the drill bit is positioned more easily during drilling, eliminating the need for cutting tie rods and milling the root. This reduces the amount of cutting material, the turnover of parts, the number of times the cutting torch is raised, shortens the workpiece processing time, and improves production efficiency. Compared to conventional pre-reserved tie rods, this method offers advantages such as simpler blanking and better dimensional accuracy. The problem of positioning when drilling angled holes is solved, resulting in more precise drilling. Since no additional cutting of the pre-reserved tie rod is required, the amount of cutting material is reduced, equipment and tool wear is decreased, the construction process is optimized, and the workpiece qualification rate is improved. The processing process reduces the number of workpiece transfer steps, saving manpower and resources. While ensuring the processing quality of the connecting seat, the processing efficiency of the connecting seat is improved.

[0060] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0061] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0062] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0063] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A manufacturing part for forming a hydraulic support push rod connecting seat, characterized in that, include: Base (1), first support (2), and second support (3); The first support (2) and the second support (3) are fixedly disposed on the upper surface of the base (1), and an opening groove is formed between the first support (2) and the second support (3), the opening groove being used to connect the push rod of the hydraulic support; The second support (3) has a boss (31) on the side wall facing the opening groove. The boss (31) is used for drilling positioning, and the axis of the boss (31) is coaxial with the connecting hole (4) to be processed.

2. The manufacturing part for forming a hydraulic support push rod connecting seat according to claim 1, characterized in that, The first support (2) has a continuous first inclined surface (21) and a second inclined surface (22) on the side wall away from the opening slot, and the first inclined surface (21) is smoothly connected to the upper surface of the base (1).

3. The manufacturing part for forming a hydraulic support push rod connecting seat according to claim 2, characterized in that, The boss (31) is an inclined square column structure, and the upper surface of the boss (31) is parallel to the second inclined surface (22); The connecting hole (4) passes through the first inclined surface (21), the boss (31) and the second support (3), and the axis of the connecting hole (4) is perpendicular to the upper surface of the second inclined surface (22) and the boss (31).

4. The manufacturing part for forming a hydraulic support push rod connecting seat according to claim 3, characterized in that, The axis of the connecting hole (4) is located on the center line of symmetry of the second inclined surface (22).

5. The manufacturing part for forming a hydraulic support push rod connecting seat according to claim 3, characterized in that, The angle between the second inclined surface (22) and the horizontal plane is 40° to 45°, and the upper surface of the boss (31) has the same angle with the horizontal plane.

6. The manufacturing part for forming a hydraulic support push rod connecting seat according to claim 3, characterized in that, The width L of the boss (31) satisfies: L = b + 10 mm; Where b is the diameter of the connecting hole (4).

7. The manufacturing part for forming a hydraulic support push rod connecting seat according to claim 1, characterized in that, The base (1), the first support (2), and the second support (3) are integrally formed structures. The opposite sides of the first support (2) and the second support (3) form an opening groove with an arc-shaped transition surface at the bottom with the base (1).

8. The manufacturing part for forming a hydraulic support push rod connecting seat according to claim 1, characterized in that, The top height of the first support (2) is lower than the top height of the second support (3).

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