A novel connecting rod structure for a low-pressure coal slurry pump

Abstract

This utility model discloses a novel connecting rod structure for a low-pressure coal slurry pump, including a first split connecting rod. A second split connecting rod is detachably connected to one side of the first split connecting rod via a disassembly structure. Mounting holes are provided on the surfaces of both the first and second split connecting rods. A connecting rod body is provided on one side of the second split connecting rod, and a weight-reducing groove is provided in the inner cavity of the connecting rod body. A connecting rod small end is connected to one side of the connecting rod body, and a through hole is provided in the inner cavity of the connecting rod small end. A transition end is provided on the exterior of the direct connection between the second split connecting rod and the connecting rod body. This novel connecting rod structure for a low-pressure coal slurry pump, with its split connecting rod design, significantly reduces manufacturing costs, greatly simplifies crankshaft assembly and disassembly, and significantly improves the crankshaft's corrosion resistance and wear resistance. Furthermore, the weight-reducing grooves on the connecting rod surfaces achieve a lighter weight and reduce manufacturing costs.

Description

Technical Field

[0001] This utility model relates to the field of low-pressure coal slurry pump technology, specifically a novel connecting rod structure for a low-pressure coal slurry pump. Background Technology

[0002] Low-pressure coal slurry pumps, with their advantages of high continuous operation rate, high degree of automation, and low operating cost, have been widely used in many fields such as solid-liquid two-phase media transportation, waste slag transportation in thermal power plants, long-distance pipeline transportation, non-ferrous metal mining, and the transportation of concentrates and tailings in mineral processing plants. The new connecting rod of the low-pressure coal slurry pump is one of the core transmission components. The connecting rod functions as a crank in the transmission structure, therefore requiring high machining precision. Currently, the connecting rod is a single piece, which leads to the following problems when installing it onto the crankshaft:

[0003] ① Existing connecting rods and crankshafts have poor corrosion resistance and wear resistance;

[0004] ②The existing one-piece connecting rod greatly increases the difficulty of crankshaft assembly and disassembly;

[0005] ③ Existing integrated connecting rods consume more materials. Utility Model Content

[0006] The purpose of this invention is to provide a novel connecting rod structure for a low-pressure coal slurry pump to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel connecting rod structure for a low-pressure coal slurry pump, comprising a first split connecting rod, a second split connecting rod detachably connected to one side of the first split connecting rod via a disassembly structure, mounting holes being provided on the surfaces of both the first and second split connecting rods, a connecting rod body being provided on one side of the second split connecting rod, a weight-reducing groove being provided in the inner cavity of the connecting rod body, a connecting rod small end being connected to one side of the connecting rod body, a through hole being provided in the inner cavity of the connecting rod small end, and a transition end being provided on the outside of the direct connection point between the second split connecting rod and the connecting rod body.

[0008] Preferably, both the first split connecting rod and the second split connecting rod are semi-circular split connecting rods, and the first split connecting rod and the second split connecting rod are connected to form a circular connecting rod.

[0009] Preferably, there are multiple mounting holes, which are evenly distributed on the top outer walls of the first split connecting rod and the second split connecting rod.

[0010] Preferably, the disassembly structure includes a boss, a boss through hole, a stud, and a nut;

[0011] Both the first split connecting rod and the second split connecting rod have a boss fixedly connected to their outer sides at the connection point. The boss has a through hole in the horizontal direction. The stud passes through the through hole and the other end of the stud is threaded with the nut. The nut and the stud lock the first split connecting rod and the second split connecting rod together through the boss.

[0012] Preferably, the outer side of the transition end is arc-shaped.

[0013] Preferably, the surfaces of both the first and second split connecting rods are chrome-plated.

[0014] Preferably, the cross-section of the connecting rod is an isosceles trapezoid.

[0015] Preferably, the weight-reducing groove is an isosceles trapezoidal weight-reducing groove and is located in the middle of the connecting rod body.

[0016] Preferably, the through hole is a circular through hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the new connecting rod structure of the low-pressure coal slurry pump is designed with a split connecting rod, which can greatly reduce the manufacturing cost, greatly reduce the difficulty of crankshaft assembly, and facilitate installation and disassembly. It also greatly improves the high corrosion resistance and wear resistance of the crankshaft. Furthermore, some weight-reducing grooves are opened on the surface of the connecting rod to achieve a lighter weight and reduce manufacturing costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is the right view of the present invention.

[0021] In the diagram: 1. First split connecting rod, 2. Mounting hole, 3. Second split connecting rod, 4. Weight reduction groove, 5. Through hole, 6. Nut, 7. Stud, 8. Transition end, 9. Boss, 10. Boss through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3This utility model provides a technical solution: a novel connecting rod structure for a low-pressure coal slurry pump, including a first split connecting rod 1. A second split connecting rod 3 is detachably connected to one side of the first split connecting rod 1 via a disassembly structure. Mounting holes 2 are provided on the surfaces of both the first split connecting rod 1 and the second split connecting rod 3. The mounting holes 2 are evenly and symmetrically opened on the outer walls of the first split connecting rod 1 and the second split connecting rod 3. A connecting rod body is provided on one side of the second split connecting rod 3. A weight-reducing groove 4 is provided in the inner cavity of the connecting rod body. The weight-reducing groove 4 is used to reduce the weight of the connecting rod and save materials. A connecting rod small end is connected to one side of the connecting rod body. A through hole 5 is provided in the inner cavity of the connecting rod small end. The through hole 5 facilitates the installation and connection of the other end of the connecting rod to an external structure. A transition end 8 is provided on the outside of the connection between the second split connecting rod 3 and the connecting rod body.

[0024] As a preferred option, both the first split connecting rod 1 and the second split connecting rod 3 are semi-circular ring-shaped split connecting rods, and the first split connecting rod 1 and the second split connecting rod 3 are connected to form a circular ring-shaped connecting rod.

[0025] As a preferred option, furthermore, the number of mounting holes 2 is multiple, and they are evenly opened on the top outer walls of the first split connecting rod 1 and the second split connecting rod 3. The number of mounting holes can be two, four, six, eight, ten, twelve, etc.

[0026] As a preferred option, the disassembly structure further includes a boss 9, a boss through hole 10, a stud 7, and a nut 6.

[0027] Both the first split connecting rod 1 and the second split connecting rod 3 are fixedly connected to a boss 9 on their outer sides. The boss 9 can be a cube boss, a cuboid boss, or a trapezoidal boss, etc. The boss 9 has a through hole 10 through it in the horizontal direction. The stud 7 passes through the through hole 10. The other end of the stud 7 is threaded with a nut 6. The nut 6 and the stud 7 lock the first split connecting rod 1 and the second split connecting rod 3 through the boss 9, which facilitates the connection of the connecting rods to the outside world and also facilitates the docking of the first split connecting rod 1 and the second split connecting rod 3.

[0028] As a preferred option, the outer side of the transition end 8 is arc-shaped, and the transition end 8 serves as a transition connection and also strengthens the connection.

[0029] As a preferred option, both the first split connecting rod 1 and the second split connecting rod 3 are chrome-plated, which gives the connecting rods good wear resistance and corrosion resistance.

[0030] As a preferred option, the cross-section of the connecting rod body is an isosceles trapezoid, a rectangle, or other structures that facilitate the connection of the connecting rod small end. The connecting rod body can be plate-shaped, block-shaped, or other shapes that can connect the connecting rod small end.

[0031] As a preferred option, the weight reduction groove 4 is an isosceles trapezoidal weight reduction groove and is opened in the middle of the connecting rod body. The weight reduction groove 4 can be a through groove of other shapes such as a circular groove or a rectangular groove.

[0032] As a preferred option, through hole 5 is a circular through hole, but it can also be a square hole, an elliptical hole, or other polygonal through holes.

[0033] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0034] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel connecting rod structure for a low-pressure coal slurry pump, comprising a first split connecting rod (1), characterized in that: The first split connecting rod (1) is detachably connected to a second split connecting rod (3) via a disassembly structure. The surfaces of the first split connecting rod (1) and the second split connecting rod (3) are provided with mounting holes (2). A connecting rod body is provided on one side of the second split connecting rod (3). A weight reduction groove (4) is provided in the inner cavity of the connecting rod body. A connecting rod small end is connected to one side of the connecting rod body. A through hole (5) is provided in the inner cavity of the connecting rod small end. A transition end (8) is provided on the outside of the direct connection between the second split connecting rod (3) and the connecting rod body.

2. The novel connecting rod structure for a low-pressure coal slurry pump according to claim 1, characterized in that: The first split connecting rod (1) and the second split connecting rod (3) are both semi-circular split connecting rods, and the first split connecting rod (1) and the second split connecting rod (3) are connected to form a circular connecting rod.

3. The novel connecting rod structure for a low-pressure coal slurry pump according to claim 1, characterized in that: The number of mounting holes (2) is multiple, and they are evenly distributed on the top outer walls of the first split connecting rod (1) and the second split connecting rod (3).

4. The novel connecting rod structure for a low-pressure coal slurry pump according to claim 3, characterized in that: The disassembly structure includes a boss (9), a boss through hole (10), a stud (7), and a nut (6). A boss (9) is fixedly connected to the outer side of the connection between the first split connecting rod (1) and the second split connecting rod (3). The boss (9) has a through hole (10) in the horizontal direction. The stud (7) passes through the through hole (10). The other end of the stud (7) is threaded with the nut (6). The nut (6) and the stud (7) lock the first split connecting rod (1) and the second split connecting rod (3) through the boss (9).

5. The novel connecting rod structure for a low-pressure coal slurry pump according to claim 1, characterized in that: The outer side of the transition end (8) is arc-shaped.

6. The novel connecting rod structure for a low-pressure coal slurry pump according to claim 1, characterized in that: The surfaces of the first split connecting rod (1) and the second split connecting rod (3) are both chrome-plated.

7. The novel connecting rod structure for a low-pressure coal slurry pump according to claim 1, characterized in that: The cross-section of the connecting rod is an isosceles trapezoid.

8. A novel connecting rod structure for a low-pressure coal slurry pump according to claim 1, characterized in that: The weight reduction groove (4) is an isosceles trapezoidal weight reduction groove and is located in the middle of the connecting rod body.

9. A novel connecting rod structure for a low-pressure coal slurry pump according to claim 1, characterized in that: The through hole (5) is a circular through hole.

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