Pumping system delivery cylinder assembly, pumping system, and pumping machine

Abstract

This application provides a pumping system conveying cylinder assembly structure, a pumping system, and pumping machinery, relating to the field of pumping machinery technology. The pumping system conveying cylinder assembly structure includes: a water tank body with a first stop portion recessed inward from the axial end face of the water tank body; a conveying cylinder body coaxially arranged with the water tank body; a second stop portion protruding outward from the axial end face of the conveying cylinder body; the second stop portion inserted into the first stop portion; a sealing groove annularly arranged between the second stop portion and the first stop portion; and a sealing adhesive layer filling the sealing groove. The pumping system conveying cylinder assembly structure of this application improves the reliability of the seal while ensuring the transmission of coaxiality, avoiding systemic failures caused by uneven wear between the main cylinder and the concrete piston.

Description

Technical Field

[0001] This application relates to the field of pumping machinery technology, and in particular to a pumping system conveying cylinder assembly structure, a pumping system, and pumping machinery. Background Technology

[0002] In the field of pumping machinery, the sealing structure of the conveying cylinder and water tank is a key component to ensure the normal operation of the equipment.

[0003] In the prior art, the connection and sealing between the conveying cylinder and the water tank are mainly achieved by machining an inlet angle at the stop of the water tank, opening a sealing groove and a guide angle on the conveying cylinder, and assembling an O-ring to achieve a seal.

[0004] However, O-ring assembly can easily lead to misalignment between the conveying cylinder and the main cylinder, causing uneven wear between the main cylinder and the concrete piston, resulting in systemic failure. Utility Model Content

[0005] In view of the above problems, this application provides a pumping system conveying cylinder assembly structure, pumping system and pumping machinery to solve the problem that O-ring assembly easily leads to coaxiality deviation between the conveying cylinder and the main cylinder, causing uneven wear between the main cylinder and the concrete piston, resulting in systemic failure.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] A first aspect of this application provides a pumping system delivery cylinder assembly structure, including:

[0008] The water tank body is provided with a first stop portion, which is recessed inward from one end face of the water tank body along the axial direction.

[0009] The conveying cylinder body is coaxially arranged with the water tank body; the conveying cylinder body is provided with a second stop portion, which protrudes outward from one end face of the conveying cylinder body along the axial direction; the second stop portion is inserted into the first stop portion.

[0010] A sealing groove is provided between the second stop and the first stop, and the sealing groove is arranged in a ring shape.

[0011] A sealant layer is used to fill the sealing groove.

[0012] In one possible implementation, the sealant layer has an annular structure adapted to the sealing groove.

[0013] In one possible implementation, the sealing groove is formed on the inner circumferential surface of the first stop portion;

[0014] And / or, the sealing groove is formed on the outer peripheral surface of the second stop portion.

[0015] In one possible implementation, the water tank body has an injection hole that is connected to a sealing groove.

[0016] In one possible implementation, the water tank body is also provided with a riser, which is arranged radially opposite to the glue injection hole, and the riser is connected to the sealing groove.

[0017] In one possible implementation, the riser is positioned at a higher height on the tank body than the glue injection hole is positioned on the tank body.

[0018] In one possible implementation, there are multiple sealing grooves, which are spaced apart along the axial direction.

[0019] In one possible implementation, the cross-sectional shape of the sealing groove is square, semi-circular, semi-elliptical, or trapezoidal.

[0020] A second aspect of this application provides a pumping system, including the pumping system delivery cylinder assembly structure as described above.

[0021] A third aspect of this application provides a pumping machine, including the pumping system described above.

[0022] The pumping system conveying cylinder assembly structure provided in this application, by setting an annular sealing groove between the second stop and the first stop, allows for the injection of sufficient sealant into the sealing groove during assembly. After the sealant cures, a sealing layer is formed. On the one hand, by setting the sealing groove, the cross-sectional area of ​​the sealing layer is increased, ensuring that it maintains sufficient thickness under dynamic displacement, significantly improving its tensile and shear resistance and preventing tearing. On the other hand, it avoids the additional radial extrusion force caused by installing O-rings, thereby eliminating the negative impact on the coaxiality of the conveying cylinder and the main cylinder, and preventing systemic failures caused by uneven wear from the root. In addition, unlike the O-ring solution, it does not require precision machining of the inlet angle on the water tank, which helps reduce manufacturing difficulty.

[0023] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the pumping system conveying cylinder assembly structure, pumping system, and pumping machinery provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is an assembly drawing of the pumping system delivery cylinder assembly structure provided in the first embodiment of this application;

[0026] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0027] Figure 3 for Figure 2 Structural diagram showing the structure behind the hidden sealant layer;

[0028] Figure 4 for Figure 2 Structural diagram showing the hidden sealant layer and the conveying cylinder body;

[0029] Figure 5 This is a partially enlarged schematic diagram of the pumping system conveying cylinder assembly structure after the sealing adhesive layer is hidden in the second embodiment of this application;

[0030] Figure 6 for Figure 1 A magnified view of a portion of point B in the middle;

[0031] Figure 7 This is a partially enlarged schematic diagram of the pumping system conveying cylinder assembly structure after the sealing adhesive layer is hidden, according to the third embodiment of this application.

[0032] Figure 8 This is a partially enlarged schematic diagram of the pumping system conveying cylinder assembly structure after the sealing adhesive layer is hidden in the fourth embodiment of this application;

[0033] Figure 9 This is a partially enlarged schematic diagram of the pumping system conveying cylinder assembly structure after the sealing adhesive layer is hidden in the fifth embodiment of this application;

[0034] Figure 10 This is a partially enlarged schematic diagram of the pumping system conveying cylinder assembly structure after the sealing adhesive layer is hidden, according to the sixth embodiment of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10. Water tank body; 101. Glue injection hole; 102. Riser; 11. First stop part;

[0037] 20. Conveying cylinder body; 201. Gap; 202. Sealing groove; 21. Second stop;

[0038] 30. Sealant layer;

[0039] 40. Pull rod;

[0040] X, radial; Y, axial. Detailed Implementation

[0041] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0042] Secondly, it should be noted that, in the description of the embodiments of this application, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0043] The connection between the conveying cylinder and the water tank in pumping machinery is a core element for ensuring stable equipment operation. This connection is primarily achieved through flange bolts combined with a tie rod system. The primary requirement for this connection is maintaining extremely high coaxiality between the conveying cylinder and the main hydraulic cylinder. During assembly, tooling is needed for inspection and adjustment to prevent coaxiality deviations from causing piston wear. Secondly, ensuring long-term sealing reliability is crucial to effectively accommodate micro-deformations caused by operational vibrations. Furthermore, the rigidity and strength of the entire connection structure must be able to withstand continuous high pressure and vibration.

[0044] In related technologies, the connection and sealing between the conveying cylinder and the water tank are mainly achieved by machining an inlet angle at the water tank stop and opening a sealing groove and guide angle on the conveying cylinder, and then assembling an O-ring to achieve a seal. However, assembling an O-ring at the junction of the water tank and the conveying cylinder requires machining an inlet angle at the water tank stop and increasing the length of the mating section. Furthermore, the O-ring assembly can affect the coaxiality of the conveying cylinder and the main hydraulic cylinder. Using bolts to connect the conveying cylinder and the water tank with O-ring sealing at the end face results in high processing costs, and this structure is unsuitable for some compact, high-stress mechanisms. Connecting the conveying cylinder and the water tank with a tie rod typically results in a short mating section. If a sealing ring is used, an inlet angle is needed on the water tank hole, and a sealing groove and guide angle are needed on the conveying cylinder, leading to an excessively short mating section. This affects the transmission of coaxiality, causing uneven wear between the main hydraulic cylinder and the concrete piston, resulting in systemic failure.

[0045] To address the aforementioned technical problems, this application provides a pumping system conveying cylinder assembly structure, a pumping system, and pumping machinery. The pumping system conveying cylinder assembly structure includes: a water tank body with a first stop portion recessed inward from the axial end face of the water tank body; a conveying cylinder body coaxially arranged with the water tank body; a second stop portion protruding outward from the axial end face of the conveying cylinder body; the second stop portion inserted into the first stop portion; a sealing groove annularly arranged between the second stop portion and the first stop portion; and a sealing adhesive layer filling the sealing groove.

[0046] The pumping system conveying cylinder assembly structure provided in this application, by setting an annular sealing groove between the second stop and the first stop, allows for the injection of sufficient sealant into the sealing groove during assembly. After the sealant cures, a sealing layer is formed. On the one hand, by setting the sealing groove, the cross-sectional area of ​​the sealing layer is increased, ensuring that it maintains sufficient thickness under dynamic displacement, significantly improving its tensile and shear resistance and preventing tearing. On the other hand, it avoids the additional radial extrusion force caused by installing O-rings, thereby eliminating the negative impact on the coaxiality of the conveying cylinder and the main cylinder, and preventing systemic failures caused by uneven wear from the root. In addition, unlike the O-ring solution, it does not require precision machining of the inlet angle on the water tank, which helps reduce manufacturing difficulty.

[0047] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0048] Please refer to Figures 1-10 The first aspect of this application provides a pumping system conveying cylinder assembly structure, including:

[0049] Water tank body 10, please refer to Figure 4 As shown, the water tank body 10 is provided with a first stop portion 11, which is recessed inward from the end face of the water tank body 10 along the Y side of the axial direction.

[0050] The conveying cylinder body 20 is coaxially arranged with the water tank body 10; please refer to Figure 3 As shown, the conveying cylinder body 20 is provided with a second stop portion 21, which protrudes outward from the end face of the conveying cylinder body 20 along the Y-axis; the second stop portion 21 is inserted into the first stop portion 11.

[0051] A sealing groove 202 is provided between the second stop portion 21 and the first stop portion 11, and the sealing groove 202 is arranged in a ring shape.

[0052] Sealant layer 30, please refer to Figure 2 As shown, the sealant layer 30 fills the sealing groove 202.

[0053] It should be noted that, please refer to Figure 4 As shown, the first stop portion 11 is a female stop portion, and the first stop portion 11 includes a short hole surface recessed inward from the end face of the water tank body 10 along the Y-axis and an end plane connected to the short hole surface. Please refer to Figure 3 As shown, the second stop portion 21 is a male stop portion, and the second stop portion 21 includes a short cylindrical surface protruding outward from the end face of the conveying cylinder body 20 along the Y side of the axial direction and an end plane connected to the short cylindrical surface.

[0054] The pumping system conveying cylinder assembly structure provided in this application, by setting an annular sealing groove 202 between the second stop portion 21 and the first stop portion 11, allows sufficient sealant to be injected into the sealing groove 202 during assembly. After the sealant cures, a sealing layer 30 is formed. On the one hand, by setting the sealing groove 202, the cross-sectional area of ​​the sealing layer 30 is increased, so that it can maintain sufficient thickness under dynamic displacement, significantly improving its tensile and shear resistance and preventing it from being torn. On the other hand, it avoids the additional radial extrusion force caused by the installation of O-rings, thereby eliminating the negative impact on the coaxiality of the conveying cylinder and the main cylinder, and preventing systemic failures caused by uneven wear from the root. In addition, it eliminates the need for precision machining of the inlet angle on the water tank as required by the O-ring solution, which helps to reduce manufacturing difficulty.

[0055] In addition, please see Figure 3 As shown, during the assembly process, there may be a small gap 201 between the first stop portion 11 and the second stop portion 21 due to manufacturing or assembly errors. During the process of injecting sealant into the sealing groove 202, the sealant can also fill the small gap 201 that may exist between the first stop portion 11 and the second stop portion 21, which helps to improve the reliability of the seal between the conveying cylinder body 20 and the water tank body 10.

[0056] Furthermore, sealant can be applied to the first stop portion 11 and the second stop portion 21 before assembling the first stop portion 11 and the second stop portion 21. During the assembly process, the sealant is fully filled into the sealing groove 202 by the compression of the first stop portion 11 and the second stop portion 21. After the sealant is cured, a sealant layer 30 is formed, thereby improving the sealing reliability.

[0057] Furthermore, the first stop portion 11 and the second stop portion 21 can be assembled first, and the coaxiality between the conveying cylinder body 20 and the water tank body 10 can be ensured. Then, the sealant can be injected into the sealing groove 202 under high pressure to ensure uniform filling and no air bubbles.

[0058] In one possible implementation, the sealant layer 30 has an annular structure adapted to the sealing groove 202.

[0059] In this embodiment, the sealant layer 30 has an annular structure that fits the sealing groove 202, thereby ensuring that the sealant layer 30 fills the sealing groove 202. The sealant layer 30 has a continuous annular structure within the sealing groove 202. After the sealant is cured, it can form a customized "sealing ring" that is equivalent to the size of the sealing groove. The "sealing ring" is mechanically protected by the sealing groove, and the "sealing ring" has a certain degree of flexibility, which can adapt to the small deformations and displacements generated during operation, thereby avoiding the problem of the sealant layer being easily torn and improving the reliability of the seal between the conveying cylinder body and the water tank body.

[0060] In one possible implementation, please see Figure 5 As shown, the sealing groove 202 is formed on the inner circumferential surface of the first stop portion 11;

[0061] And / or, please see Figure 3 As shown, the sealing groove 202 is formed on the outer peripheral surface of the second stop portion 21.

[0062] It should be noted that the sealing groove 202 can be formed on the water tank body 10, specifically on the inner circumferential surface of the first stop portion 11; the sealing groove 202 can also be formed on the conveying cylinder body 20, specifically on the outer circumferential surface of the second stop portion 21; at least one ring of sealing groove 202 can also be formed on the inner circumferential surface of the first stop portion 11, and at least one ring of sealing groove 202 can also be formed on the outer circumferential surface of the second stop portion 21. During assembly, sufficient sealant is injected into the sealing groove 202, and after the sealant cures, a sealant layer 30 is formed; by setting the sealing groove 202, the cross-sectional area of ​​the sealant layer 30 is increased, so that it can still maintain sufficient sealant thickness under dynamic displacement, significantly improving its tensile and shear resistance, avoiding tearing, and achieving reliable sealing.

[0063] In one possible implementation, please see Figure 6 As shown, the water tank body 10 has an injection hole 101, which is connected to the sealing groove 202.

[0064] In this embodiment, by opening an injection hole 101 on the water tank body 10, sealant can be injected into the sealing groove 202 under high pressure through the injection hole 101, so that the sealant fully fills the sealing groove 202 and forms a dense sealant layer 30, thereby improving the reliability of the seal between the conveying cylinder body 20 and the water tank body 10. During maintenance, sealant can be injected through the injection hole 101, avoiding the need to disassemble and assemble the conveying cylinder and adjust the coaxiality of the conveying cylinder and the main oil cylinder, which helps to ensure the connection accuracy and integrity of the conveying cylinder and the main oil cylinder.

[0065] In one possible implementation, please see Figure 2 As shown, a riser 102 is also provided on the water tank body 10. The riser 102 and the glue injection hole 101 are arranged opposite each other in the radial direction X. The riser 102 is connected to the sealing groove 202.

[0066] In this embodiment, by opening a riser 102 on the water tank body 10, during high-pressure caulking, sealant is injected into the sealing groove 202 through the injection hole 101. The sealant is forced into the sealing groove 202. During this process, air can be effectively discharged through the riser 102, avoiding defects such as air bubbles or incomplete filling, thereby forming a continuous, uniform and very dense sealant layer 30, which greatly reduces the possibility of leakage and further improves the reliability of the seal between the conveying cylinder body 20 and the water tank body 10.

[0067] In one possible implementation, the riser 102 is positioned at a higher height than the injection hole 101 on the water tank body 10. During high-pressure gluing, sealant is injected into the sealing groove 202 through the injection hole 101. Under the influence of gravity, the sealant first fills the lower part of the sealing groove 202 until it is fully filled. Only then does the sealant flow out from the riser 102, thus avoiding defects such as air bubbles or incomplete filling. This forms a continuous, uniform, and very dense sealant layer 30, greatly reducing the possibility of leakage and further improving the reliability of the seal between the conveying cylinder body 20 and the water tank body 10.

[0068] Furthermore, the glue injection hole 101 can be provided at the bottom of the first stop portion 11, and the riser 102 can be provided at the top of the first stop portion 11.

[0069] In one possible implementation, please see Figure 10 As shown, there are multiple sealing grooves 202, which are spaced apart along the axial direction Y. During assembly, sufficient sealant is injected into the multiple sealing grooves 202. After the sealant cures, a sealant layer 30 is formed, which effectively avoids the problem of the sealant layer being easily torn and further improves the reliability of the seal between the conveying cylinder body 20 and the water tank body 10.

[0070] In one possible implementation, the cross-sectional shape of the sealing groove 202 is square, semi-circular, semi-elliptical, or trapezoidal.

[0071] It should be noted that, please refer to Figure 3 As shown, the cross-sectional shape of the sealing groove 202 can be square; please refer to... Figure 7 As shown, the cross-sectional shape of the sealing groove 202 can also be semi-circular; please refer to [link / reference]. Figure 8 As shown, the cross-sectional shape of the sealing groove 202 can also be semi-elliptical; please refer to [link to relevant documentation]. Figure 9 As shown, the cross-sectional shape of the sealing groove 202 can also be trapezoidal to adapt to different production needs. Please refer to... Figure 3 As shown, the number of sealing grooves 202 can be one; please refer to [reference needed]. Figure 10 As shown, the number of sealing grooves 202 can also be multiple, thus adapting to different production needs.

[0072] Furthermore, the conveying cylinder body 20 is connected to the water tank body 10 via a flange. Also, please refer to... Figure 1 As shown, the pumping system conveying cylinder assembly structure also includes tie rods 40. The conveying cylinder body 20 and the water tank body 10 are connected by tie rods 40. Multiple high-strength tie rods 40 are evenly distributed along the outer circumference of the conveying cylinder body 20. The tie rods 40 can resist the huge alternating impact force generated when pumping concrete, prevent the flange connection bolts from bearing excessive shear stress, and enhance the stability and reliability of the entire pumping system.

[0073] A second aspect of this application also provides a pumping system, including the pumping system delivery cylinder assembly structure as described above.

[0074] Given that the pumping system in this embodiment includes the pumping system conveying cylinder assembly structure described in any of the above embodiments, the structure and beneficial effects of the pumping system including the pumping system conveying cylinder assembly structure will not be elaborated further in this embodiment.

[0075] A third aspect of this application also provides a pumping machine, including the pumping system described above.

[0076] Since the pumping machinery in this embodiment includes the pumping system described in any of the above embodiments, the structure and beneficial effects of the pumping machinery including the pumping system will not be described in detail here.

[0077] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0078] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 application.

Claims

1. A pumping system conveying cylinder assembly structure, characterized in that, include: The water tank body is provided with a first stop portion, which is recessed inward from one end face of the water tank body along the axial direction. The conveying cylinder body is coaxially arranged with the water tank body; the conveying cylinder body is provided with a second stop portion, which protrudes outward from one end face of the conveying cylinder body along the axial direction; the second stop portion is inserted into the first stop portion; A sealing groove is provided between the second stop portion and the first stop portion, and the sealing groove is arranged in a ring shape; A sealant layer is filled into the sealing groove.

2. The pumping system conveying cylinder assembly structure according to claim 1, characterized in that, The sealant layer has an annular structure that is adapted to the sealing groove.

3. The pumping system conveying cylinder assembly structure according to claim 1, characterized in that, The sealing groove is formed on the inner circumferential surface of the first stop portion; And / or, the sealing groove is formed on the outer peripheral surface of the second stop portion.

4. The pumping system conveying cylinder assembly structure according to any one of claims 1-3, characterized in that, The water tank body is provided with an injection hole, which is connected to the sealing groove.

5. The pumping system conveying cylinder assembly structure according to claim 4, characterized in that, The water tank body is also provided with a riser, which is arranged radially opposite to the glue injection hole, and the riser is connected to the sealing groove.

6. The pumping system conveying cylinder assembly structure according to claim 5, characterized in that, The riser is positioned at a higher height on the water tank body than the glue injection hole is positioned on the water tank body.

7. The pumping system conveying cylinder assembly structure according to any one of claims 1-3, characterized in that, The number of sealing grooves is multiple, and the multiple sealing grooves are spaced apart along the axial direction.

8. The pumping system conveying cylinder assembly structure according to any one of claims 1-3, characterized in that, The cross-sectional shape of the sealing groove is square, semi-circular, semi-elliptical, or trapezoidal.

9. A pumping system, characterized in that, The pumping system delivery cylinder assembly structure includes any one of claims 1 to 8 above.

10. A pumping machine, characterized in that, Including the pumping system as described in claim 9 above.

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