Auxiliary mounting device for upper shell of water pump

Abstract

The invention relates to the technical field of water pump installation, in particular to a water pump upper shell auxiliary installation device which comprises a driving mechanism and a lower shell arranged at the output end of the driving mechanism, an upper shell matched with the lower shell in size is arranged above the lower shell, and a hoisting plate is installed at the upper end of the upper shell. The hoisting mechanism comprises a hoisting machine, a sling arranged on the hoisting machine and connected with the hoisting plate, an auxiliary mechanism and a plurality of guiding parts arranged at the lower end of the supporting ring part, the upper shell is hoisted and moved to the position above the auxiliary mechanism through the hoisting mechanism, and the falling direction of the upper shell can be effectively guided through the guiding parts; the upper shell can be accurately moved to the vertical position above the lower shell, the installation efficiency is effectively improved, meanwhile, the situation that the upper shell collides with the lower shell and the turbofan in the lower shell in the falling process is avoided, and safe and stable installation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of water pump installation, and in particular to an auxiliary installation device for an upper shell of a water pump. Background Art

[0002] In order to meet the growing demand for electricity in recent years, power plants have been increasing their power generation and supporting equipment, especially large feed water pumps and circulating water pumps, which are indispensable equipment. Some large feed water pumps may weigh several tons or even more than ten tons. Such weight is far beyond the limit of human handling. The use of lifting equipment is a necessary means to safely and efficiently transport and install these heavy water pumps.

[0003] The general lifting method requires workers to rely on experience and strength to adjust the angle and position of the casing. However, due to the heavy weight of the casing, it is easy to damage the precision parts inside the pump, such as the impeller, shaft, etc. due to collision, tilting, etc., which will cause damage to the working condition of the pump and affect the power generation plan of the power plant. Summary of the invention

[0004] In view of the problems existing in the existing auxiliary installation device for the upper shell of a water pump, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide an auxiliary installation device for the upper shell of a water pump, the purpose of which is to improve the convenience and stability of the upper shell of the water pump during installation and reduce damage to components such as the impeller and shaft caused by collisions during the installation of the shell.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a water pump upper shell auxiliary installation device, comprising a driving mechanism, a lower shell arranged at the output end of the driving mechanism, an upper shell adapted to its size is arranged above the lower shell, and a hanging plate is installed on the upper end of the upper shell;

[0007] The hoisting mechanism comprises a hoisting machine, a sling arranged on the hoisting machine and connected to a hoisting plate;

[0008] The auxiliary mechanism comprises a supporting ring portion arranged on the outer wall of the lower shell body, a plurality of guiding portions arranged on the lower end of the supporting ring portion, and an air supply portion arranged on the outer wall of the guiding portion.

[0009] As a preferred solution of the auxiliary installation device for the upper shell of a water pump of the present invention, the support ring portion includes a pair of support ring petals installed on the outer wall of the lower shell body, and an annular slide groove arranged at the bottom of the support ring petals.

[0010] As a preferred solution of a water pump upper shell auxiliary installation device of the present invention, the guide portion includes a base arranged in an annular slide groove, a vertical plate arranged at the upper end of the base, a guide plate arranged at the upper end of the vertical plate, and a connecting plate arranged between two adjacent bases, and the guide plates are arranged obliquely from bottom to top and from inside to outside.

[0011] As a preferred solution of the auxiliary installation device for the upper shell of a water pump of the present invention, wherein: a plurality of magnetic blocks are arranged on the support ring petals, and a pair of the support ring petals are fastened to the outer wall of the lower shell body by bolts.

[0012] As a preferred solution of the auxiliary installation device for the upper shell of a water pump of the present invention, the support portion includes an end head arranged on the vertical plate, a plurality of support bars arranged on the end head, and a reserved gap arranged between two adjacent support bars.

[0013] As a preferred solution of the auxiliary installation device for the upper shell of a water pump of the present invention, the expansion bag arranged in the reserved gap is filled with air, and the gas filling amount in the expansion bag is 120%-150%.

[0014] As a preferred solution of the auxiliary installation device for the upper shell of a water pump of the present invention, wherein: a cavity is arranged inside the support bar, multiple air distribution pipes are arranged inside the end head, the air distribution pipe is connected to the cavity, and a main air pipe is arranged at one end of the air distribution pipe.

[0015] As a preferred solution of a water pump upper shell auxiliary installation device of the present invention, the air supply part includes an air pump arranged on a guide plate, an air guide pipe arranged at the output end of the air pump, the air guide pipe is connected to the main air pipe, and a plurality of exhaust holes are arranged at the lower end of the support bar, and the exhaust holes are connected to the cavity.

[0016] As a preferred solution of the auxiliary installation device for the upper shell of a water pump of the present invention, wherein: an air distribution pipe 2 is arranged inside the end head, the air distribution pipe 2 is connected to the expansion bag, and the other end of the air distribution pipe 2 is connected to the air distribution pipe 1 through a solenoid valve.

[0017] As a preferred solution of the auxiliary installation device for the upper shell of a water pump of the present invention, the support bar is made of elastic metal material, and the height of the support bar is 1-3 times of its width.

[0018] The beneficial effects of the present invention are as follows: the upper shell is lifted and moved to above the auxiliary mechanism by means of a lifting mechanism, and the falling direction of the upper shell can be effectively guided by means of an inclined guide plate, so that it can be accurately moved vertically above the lower shell, thereby effectively improving the efficiency of installation and preventing the upper shell from hitting the lower shell and the turbofan inside it during the falling process, thereby achieving safe and stable installation; when the staff rotates the angle of the upper shell to calibrate the mounting hole, the support portion can keep the upper shell in the correct installation position in the vertical direction, thereby improving the efficiency of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 The present invention is a schematic diagram of the overall structure of a water pump upper shell auxiliary installation device.

[0021] Figure 2 The present invention is a schematic structural diagram of a water pump upper casing auxiliary installation device in a hoisting state.

[0022] Figure 3 The present invention is a schematic diagram of the top view of the auxiliary mechanism of the auxiliary installation device for the upper shell of a water pump.

[0023] Figure 4 The present invention is a schematic diagram of the structure of an auxiliary mechanism of an auxiliary installation device for an upper shell of a water pump when viewed from above.

[0024] Figure 5 The present invention is a schematic diagram of a partial cross-sectional structure of a support portion of a water pump upper shell auxiliary installation device.

[0025] Figure 6 The present invention is a schematic diagram of the bottom view structure of the support portion of the auxiliary installation device for the upper shell of a water pump.

[0026] Figure 7 It is a schematic structural diagram of a support portion of a water pump upper shell auxiliary installation device in an expanded state according to the present invention.

[0027] In the figure: 100, lower shell; 200, upper shell; 201, lifting plate; 300, driving mechanism; 400, lifting mechanism; 401, lifting machine; 402, sling; 500, auxiliary mechanism; 501, supporting ring; 501a, supporting ring flap; 501b, annular slide; 502, guiding part; 502a, base; 502b, vertical plate; 502c, guide plate; 502d, connecting plate; 503, supporting part; 503a, end; 503b, supporting bar; 503c, cavity; 503d, reserved gap; 503e, expansion bag; 503f, air distribution pipe 1; 503g, air distribution pipe 2; 503h, solenoid valve; 503i, main air pipe; 503j, exhaust hole; 504, air supply part; 504a, air pump; 504b, air guide pipe. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0032] Example 1

[0033] Reference Figure 1-2 , which is the first embodiment of the present invention, provides a driving mechanism 300, a lower shell 100 arranged at the output end of the driving mechanism 300, an upper shell 200 matching the size thereof is arranged above the lower shell 100, and a hanging plate 201 is installed at the upper end of the upper shell 200;

[0034] The hoisting mechanism 400 includes a hoisting machine 401 and a sling 402 disposed on the hoisting machine 401 and connected to the hoisting plate 201;

[0035] The auxiliary mechanism 500 includes a supporting ring portion 501 disposed on the outer wall of the lower shell 100 , a plurality of guide portions 502 disposed at the lower end of the supporting ring portion 501 , an air supply portion 504 disposed on the outer wall of the guide portion 502 , and a supporting portion 503 disposed on the guide portion 502 .

[0036] Specifically, when using the device, the staff first assembles the supporting ring part 501 in the auxiliary mechanism 500 and fixes it on the outer wall of the lower shell 100. At this time, the lifting mechanism 400 is used to lift the upper shell 200 and move it above the auxiliary mechanism 500. The inclined guide part 502 can effectively guide the falling direction of the upper shell 200, so that it can be accurately moved vertically above the lower shell 100, effectively improving the installation efficiency. At the same time, it avoids the upper shell 200 from hitting the lower shell 100 and the turbofan inside it during the falling process, thereby achieving safe and stable installation. When the staff rotates the upper shell 200 to calibrate the installation hole, the support part 503 can keep the upper shell 200 in the correct installation position in the vertical direction, thereby improving the installation efficiency.

[0037] Reference Figure 3-4 The support ring portion 501 includes a pair of support ring petals 501a installed on the outer wall of the lower shell 100, and an annular groove 501b arranged at the bottom of the support ring petals 501a.

[0038] The guide portion 502 includes a base 502a arranged in the annular slide groove 501b, a vertical plate 502b arranged at the upper end of the base 502a, a guide plate 502c arranged at the upper end of the vertical plate 502b, and a connecting plate 502d arranged between two adjacent bases 502a. The guide plates 502c are arranged obliquely from bottom to top and from inside to outside. The connecting plate 502 is used to keep the two support ring petals 501a in a relatively stable connection, thereby improving the overall stability of the device.

[0039] A plurality of magnetic blocks are arranged on the support ring petals 501a, and a pair of support ring petals 501a are fastened to the outer wall of the lower shell 100 by bolts. The magnetic blocks can be used to make the support ring petals 501a adhere to the outer wall of the lower shell 100, so as to facilitate the assembly, installation and fixation of the two support ring petals 501a.

[0040] Example 2

[0041] Reference Figure 5 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the support portion 503 includes an end 503a arranged on the vertical plate 502b, a plurality of support bars 503b arranged on the end 503a, a reserved gap 503d arranged between two adjacent support bars 503b, and the lower wall of the support bar 503b is 2mm higher than the lower shell 100.

[0042] Specifically, with the cooperation of the plurality of support bars 503 b and the reserved gaps 503 d , the friction force of the support portion 503 is effectively improved, thereby improving the stability of the upper shell being placed on the support portion 503 .

[0043] The support bar 503b is made of elastic metal material, and the height of the support bar 503b is 1-3 times its width. The elastic metal material can realize the left and right and up and down bending of the support bar 503b. The limited height-to-width ratio can make the support bar 503b have a slight bend in the vertical direction, so that the support bar 503b can contact the flange and use the flange to distribute the pressure, thereby improving the service life of the support bar 503b.

[0044] Reference Figure 5 , a cavity 503c is arranged inside the support bar 503b, a plurality of gas distribution pipes 503f are arranged inside the end 503a, the gas distribution pipe 503f is connected to the cavity 503c, and a main gas pipe 503i is arranged at one end of the gas distribution pipe 503f.

[0045] Reference Figure 3 and Figure 6 The air supply unit 504 includes an air pump 504a disposed on the guide plate 502c, an air guide pipe 504b disposed at the output end of the air pump 504a, the air guide pipe 504b is connected to the main air pipe 503i, and a plurality of exhaust holes 503j are disposed at the lower end of the support bar 503b, and the exhaust holes 503j are connected to the cavity 503c.

[0046] During use, in order to improve the stability of the upper shell 200 when calibrating the mounting hole when rotating the angle, the staff inserts the support part 503 into the outer wall of the vertical plate 502b and extends it to the upper end of the flange of the lower shell 100, and then places the upper shell 200 on the support part 503. When it is necessary to calibrate the mounting hole, the staff uses the high-pressure gas generated by the air pump 504a to enter the cavity 503c through the main air pipe 503i and the air distribution pipe 503f, and is discharged from the exhaust hole 503j under the support bar 503b. The high-pressure gas lifts the support bar 503b and the upper shell 200 synchronously, so that an air layer is formed between it and the lower shell 100 to reduce friction. The mounting hole between the upper shell 200 and the lower shell 100 is calibrated by rotating the overall guide part 502 along the annular groove 501b, which avoids the upper shell 200 from hitting the guide part 502 and causing damage due to the shaking of the sling 402. At the same time, the high-pressure gas can blow and clean the flange of the lower shell 100, further improving the tightness of the installation.

[0047] The remaining structures are the same as those of Example 1.

[0048] Example 3

[0049] Reference Figure 5 and Figure 7 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that an expansion bag 503e is provided between the reserved gaps 503d, and the expansion bag 503e is filled with air. Under normal conditions, the gas filling amount inside the expansion bag 503e is 120%. The slightly expanded state of the expansion bag 503e can provide a buffering and shock-absorbing effect on the upper shell 200, while increasing the stability of the placement of the upper shell 200, thereby improving the stability and safety of the device.

[0050] The end 503a is provided with a second air distribution pipe 503g connected to the expansion bag 503e. The other end of the second air distribution pipe 503g is connected to the first air distribution pipe 503f through the electromagnetic valve 503h. The electromagnetic valve 503h is electrically connected to the external controller.

[0051] The upper and lower ends of the expansion bag 503e protrude 2mm beyond the reserved gap 503d in a normal state, and are 20mm higher than the reserved gap 503d in an expanded state.

[0052] During use, before the staff places the upper shell 200 on the support part 503, the solenoid valve 503h is used to control the high-pressure gas to enter the expansion bag 503e to expand its volume, and the support bar 503b is bent to both sides to increase the contact area, thereby improving the stability of the upper shell 200. The expansion bag 503e can prevent the upper shell 200 from directly contacting the support bar 503b, thereby protecting the upper shell 200. After the mounting hole calibration is completed, the bolt is inserted to fix the angle, and then the gas in the expansion bag 503e is discharged, the support bar 503b is restored to its original state, and the support part 503 is pulled out. The upper shell 200 is slowly installed on the upper end of the lower shell 100 using the lifting mechanism 400, and finally the bolts are tightened and the auxiliary mechanism 500 is removed to complete the installation.

[0053] The construction and arrangement of the present application shown in different exemplary embodiments are only exemplary. Although only several embodiments are described in detail in this disclosure, it should be easily understood by the personnel referring to this disclosure that many modifications are possible (for example, the size, scale, structure, shape and ratio of various elements, and parameter values ​​(for example, temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described in this article, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0054] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A water pump upper shell auxiliary installation device, comprising a driving mechanism (300), a lower shell (100) arranged at the output end of the driving mechanism (300), characterized in that: An upper shell (200) having a size matching that of the lower shell (100) is arranged above the lower shell (100), and a hanging plate (201) is installed at the upper end of the upper shell (200); The hoisting mechanism (400) comprises a hoisting machine (401), and a sling (402) disposed on the hoisting machine (401) and connected to a hoisting plate (201); The auxiliary mechanism (500) comprises a supporting ring portion (501) arranged on the outer wall of the lower shell (100), a plurality of guiding portions (502) arranged at the lower end of the supporting ring portion (501), an air supply portion (504) arranged on the outer wall of the guiding portion (502), and a supporting portion (503) arranged on the guiding portion (502).

2. A water pump upper shell auxiliary installation device according to claim 1, characterized in that: The support ring portion (501) comprises a pair of support ring petals (501a) mounted on the outer wall of the lower shell (100), and an annular sliding groove (501b) arranged at the bottom of the support ring petals (501a).

3. The auxiliary installation device for the upper shell of a water pump according to claim 1, characterized in that: The support ring portion (501) further comprises a plurality of magnetic blocks arranged on the support ring petals (501a), and a pair of the support ring petals (501a) are mutually fastened to the outer wall of the lower shell (100) by bolts.

4. The auxiliary installation device for the upper shell of a water pump according to claim 2, characterized in that: The guide portion (502) comprises a base (502a) arranged in the annular slide groove (501b), a vertical plate (502b) arranged at the upper end of the base (502a), a guide plate (502c) arranged at the upper end of the vertical plate (502b), and a connecting plate (502d) arranged between two adjacent bases (502a), wherein the guide plates (502c) are arranged obliquely from bottom to top and from inside to outside.

5. The water pump upper shell auxiliary installation device according to claim 2, characterized in that: The support portion (503) comprises an end (503a) arranged on the vertical plate (502b), a plurality of support bars (503b) arranged on the end (503a), and a reserved gap (503d) arranged between two adjacent support bars (503b).

6. The water pump upper shell auxiliary installation device according to claim 4, characterized in that: The support portion (503) further comprises an expansion bag (503e) arranged in the reserved gap (503d), the expansion bag (503e) is filled with air, and the gas filling amount in the expansion bag (503e) is 120%-150%.

7. The water pump upper shell auxiliary installation device according to claim 4, characterized in that: The support portion (503) also includes a cavity (503c) arranged inside the support strip (503b), a plurality of gas distribution pipes (503f) arranged inside the end (503a), the gas distribution pipes (503f) being connected to the cavity (503c), and a main gas pipe (503i) arranged at one end of the gas distribution pipes (503f).

8. The water pump upper shell auxiliary installation device according to claim 4, characterized in that: The air supply part (504) comprises an air pump (504a) arranged on the guide plate (502c), an air guide pipe (504b) arranged at the output end of the air pump (504a), the air guide pipe (504b) being connected to the main air pipe (503i), and a plurality of exhaust holes (503j) arranged at the lower end of the support bar (503b), the exhaust holes (503j) being connected to the cavity (503c).

9. The water pump upper shell auxiliary installation device according to claim 4, characterized in that: The support portion (503) further includes a second air distribution pipe (503g) disposed inside the end head (503a), wherein the second air distribution pipe (503g) is connected to the expansion bag (503e), and the other end of the second air distribution pipe (503g) is connected to the first air distribution pipe (503f) via the electromagnetic valve (503h).

10. The water pump upper shell auxiliary installation device according to claim 4, characterized in that: The support bar (503b) is made of elastic metal material, and the height of the support bar (503b) is 1 to 3 times of its width.

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