Quick disassembling device for multi-stage water pump
By designing a combined structure of a tension arm, retaining ring, spacer rod, jack, and thrust base, the problem of low disassembly efficiency of traditional tools was solved, enabling rapid disassembly of multi-stage water pumps, shortening maintenance time, and improving production efficiency.
Patent Information
- Application Number
- CN202520267793.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-19
AI Technical Summary
In the existing technology, the disassembly of multi-stage water pumps relies on traditional tools, which is inefficient and results in excessively long maintenance time. This makes it impossible to complete the disassembly within the limited downtime, affecting the normal operation of the production system.
A multi-stage water pump quick disassembly device was designed, which adopts a combination structure of a tension arm, a retaining ring, a spacer rod, a jack, and a thrust seat. The piston rod of the jack pushes against the pump shaft of the multi-stage pump, and the spacer rod and retaining ring work together to achieve quick disassembly of the multi-stage pump.
It significantly shortened the disassembly time of the multi-stage water pump from 32 hours to 8 hours, and improved the operating rate of the oxygen lance system.
Smart Images
Figure CN223656921U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to multistage water pump equipment technical field, concretely is a kind of multistage water pump quick disassembly device. BACKGROUND
[0002] Multistage water pump is widely used in metallurgy, mine, machinery manufacturing and other industries due to its characteristics of being able to generate large water pressure, and the pump shell of multistage water pump is mainly composed of water inlet section, water outlet section, middle section and tail cover and other parts, which need to be disassembled one by one during disassembly and maintenance. The oxygen lance of the converter of a certain metallurgical enterprise adopts a multistage centrifugal water pump. During each maintenance, the total time of disassembly, installation and test run is about 32 hours. However, the converter system usually requires continuous production, and the downtime is often very limited, so it is not possible to provide such a long maintenance window. Therefore, a special tool is needed to speed up the disassembly of the multistage pump to shorten the required maintenance time.
[0003] Currently, the disassembly work of oxygen lance pump relies on traditional tools such as crowbar, flat chisel and small hammer. This method not only has low efficiency, but also requires a long time for each maintenance. In the case of tight downtime, these tools cannot complete the maintenance within the specified time, resulting in delay of the production system and affecting the normal operation of the entire production line. SUMMARY
[0004] The utility model aims at providing a kind of multistage water pump quick disassembly device to solve the problem that the disassembly work of oxygen lance pump currently relies on traditional tools such as crowbar, flat chisel and small hammer. This method not only has low efficiency, but also requires a long time for each maintenance. In the case of tight downtime, these tools cannot complete the maintenance within the specified time, resulting in delay of the production system and affecting the normal operation of the entire production line.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of multistage water pump quick disassembly device, including two tension arms, snap ring, fixed distance rod, jack, thrust seat, the thrust seat is arranged in U shape, and the left and right sides of the vertical end are symmetrically provided with guide slot, and the jack is connected between the two guide slots, the piston rod of jack is arranged corresponding to the head of multistage pump shaft, and is in contact with multistage pump shaft, and the tension arm is respectively arranged in the guide slot, and the thrust seat is slidingly connected to the tension arm, the top of the tension arm is connected with the snap ring, and the snap ring is used with the protrusion arranged on the outer circumference of the multistage pump shell, the first tension arm and the second tension arm are symmetrically and evenly provided with a plurality of fixed distance holes at one end away from the snap ring, and the fixed distance rod is inserted into the fixed distance hole, and the outer circumference of the fixed distance rod is in contact with the inner wall of the U-shaped end of the thrust seat.
[0006] Preferably, a hole for connecting with the lifting lug of lifting device is formed in the middle of the top of the vertical end of the thrust seat, and the hole is φ30.
[0007] Preferably, the distance hole is φ30 in size.
[0008] Preferably, the size of the guide groove is set according to the size of the tension arm, and the circumferential direction of the tension arm is in contact with the guide groove.
[0009] Preferably, the distance rod is provided with a limiting plate at any one end.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] The design is used in cooperation with the protrusions on the outer circumference of the multistage pump through the snap ring, supports the jack through the thrust seat, and through the cooperation of the distance rod and the distance hole, the piston rod of the jack is in contact with the pump shaft of the multistage pump and is pushed, a backward thrust is generated, the multistage pump is disassembled, in addition, the thrust seat is connected with the hanging device, the stability is increased, the structure is simple, the manufacturing cost is low, a special tool capable of greatly reducing the disassembly time of the oxygen lance pump is designed, the maintenance time of the converter oxygen lance multistage pump is shortened from 32 hours to 8 hours, and the operation rate of the oxygen lance system is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a whole structure schematic view of the utility model.
[0013] In the figure: 1, first tension arm; 2, second tension arm; 3, distance rod; 4, jack; 5, thrust seat. DETAILED DESCRIPTION
[0014] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.
[0015] In the description of the utility model, it should be pointed out that the positions or location relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" are based on the positions or location relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated devices or elements must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0016] In the description of the utility model, it is necessary to explain, unless another definite provision and limit, the term "installation", "set with", "connection" and the like, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected; can be mechanical connection, also can be electrical connection; can be directly connected, also can indirectly connect through the intermediate medium, can be two elements inside the communication. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled person in the art without creative labor belong to the scope of protection of the utility model.
[0018] Embodiment 1: please refer to Figure 1The utility model provides a kind of embodiment: a kind of multistage water pump quick disassembly device, including two tension arms, snap ring, fixed distance rod 3, jack 4, thrust seat 5, thrust seat 5 is arranged in U shape, when jack 4's piston rod is pushed to multistage pump shaft, jack 4 is displaced towards the end away from multistage pump shaft, simultaneously drive thrust seat 5 to the end away from multistage pump shaft displacement, through the limiting position of fixed distance rod 3, synchronous drive tension arm displacement, the left and right sides symmetrically opened with guide groove on its vertical end, the size of guide groove corresponds the size of tension arm setting, the circumferential of its tension arm and guide groove is in contact, jack 4 is connected between two guide grooves, the head of jack 4 corresponds the fixed distance rod 3 of multistage pump shaft setting, jack 4 is connected with oil pump by pipeline, oil pump is connected with oil tank, and valve body for switch is set on pipeline, and with multistage pump shaft is in contact, guide groove is equipped with tension arm respectively, tension arm is used for connecting and supporting thrust seat 5, and by the sliding fit with guide groove to adjust multistage pump shaft disassembly, the position adjustment of pump body of different stage number, so that the piston rod of jack 4 is always in contact with multistage pump shaft, first tension arm 1 and second tension arm 2 are symmetrically set, correspond to the two ends of multistage pump body respectively, when installing, first tension arm 1 and second tension arm 2 top snap ring and the protrusion of two ends of multistage pump body are mutually matched first, then thrust seat 5 is connected on tension arm, and thrust seat 5 is slidably fitted in tension arm, the top of tension arm is connected with snap ring, and snap ring is used for connecting tension arm with the protrusion outside multistage pump shell, plays the role of fixing and supporting, ensures that tension arm will not fall off or deviate from the predetermined position in work, when disassembling, the piston rod of jack 4 is in contact with multistage pump shaft and is pushed, simultaneously, thrust seat 5 is displaced, through the limiting of fixed distance rod 3, synchronous action is applied to tension arm, snap ring and pump shell protrusion are closely matched, ensure that tension arm does not fall off, so as to maintain the stability of the whole structure, snap ring and the protrusion set on the circumference outside multistage pump shell are mutually matched, first tension arm 1 and second tension arm 2 symmetrically and evenly set up a plurality of fixed distance holes away from snap ring, the size of fixed distance hole is φ30, fixed distance hole and fixed distance rod 3 are mutually matched, the position of thrust seat 5 is limited, synchronous force of jack 4 is transmitted to tension arm, drive snap ring displacement, multistage pump is disassembled, fixed distance rod 3 is inserted in fixed distance hole, when thrust seat 5 is displaced backward, fixed distance rod 3 limits the position, so as to drive tension arm displacement, the circumference of the outside of fixed distance rod 3 and the U-shaped end inner wall of thrust seat 5 are in contact, any one end of fixed distance rod 3 is provided with limiting plate,
[0019] In use, first, the snap ring at the top end of the first tension arm 1 and the second tension arm 2 is matched with the protrusions at both ends of the multistage pump body, then the thrust seat 5 is connected on the tension arm, then the thrust seat 5 is pushed to make the piston rod of the jack 4 abut against the pump shaft of the multistage pump, at the same time, the fixed distance rod 3 is inserted, then the jack 4 is started, the piston rod of the jack 4 is extended and abuts against the pump shaft of the multistage pump, at the same time, the jack 4 and the thrust seat 5 are driven to move towards the end away from the pump shaft of the multistage pump, the thrust seat 5 is limited by the fixed distance rod 3, and the force is transmitted to the tension arm at the same time, the tension arm is displaced synchronously, at this time, the snap ring is abutted against the protrusions on the multistage pump body, then the multistage pump body is removed one by one.
[0020] Example 2: see Figure 1 On the basis of example 1, the following structure is further provided:
[0021] A hole for connecting with the lifting appliance lifting lug is formed in the middle of the vertical end top of the thrust seat 5, the hole is φ30, the design of the hole enables the thrust seat 5 to be easily lifted by the lifting appliance (such as a lifting lug), the hole diameter of φ30 is usually suitable for standard lifting rings or lifting tools, and the safety and stability of the lifting process can be ensured, the lifting lug is worn on the upper hole of the thrust seat 5, the lifting belt or the inverted chain is used to provide upward tension for the disassembling device, the gravity of the disassembling device is avoided from falling, and the jack 4 is cooperated to disassemble the multistage pump shell one by one through tension and reverse thrust.
[0022] The above is only an embodiment of the present application, and the well-known specific structures and properties in the scheme are not described in detail. It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.
Claims
1. A multi-stage water pump quick disassembly device, characterized in that: Including two tension arms, snap ring, spacer rod (3), jack (4), thrust seat (5), the thrust seat (5) is set to U shape, and the left and right sides of the vertical end are symmetrically provided with guide grooves, the jack (4) is connected between the two guide grooves, the piston rod of the jack (4) is provided with the head of the multistage pump shaft, and is in contact with the multistage pump shaft, the guide groove is respectively provided with a tension arm, and the thrust seat (5) is slidably connected with the tension arm, the top end of the tension arm is connected with the snap ring, the snap ring is used with the convex on the outer circumference of the multistage pump shell, the first tension arm (1), the second tension arm (2) are symmetrically and evenly provided with a plurality of distance holes at the end away from the snap ring, the distance hole is inserted with the spacer rod (3), and the outer circumference of the spacer rod (3) is in contact with the inner wall of the U-shaped end of the thrust seat (5).
2. A quick disassembly device for a multi-stage water pump according to claim 1, characterized in that: The vertical end of the thrust seat (5) is provided with a hole for connecting with the lifting lug, and the hole is φ30.
3. The quick disassembly device of a multi-stage water pump according to claim 1, characterized in that: The size of the distance hole is φ30.
4. The quick disassembly device for a multi-stage water pump according to claim 1, characterized in that: The size of the guide groove is set according to the size of the tension arm, and the circumferential direction of the tension arm is in contact with the guide groove.
5. The quick disassembly device for a multi-stage water pump according to claim 1, characterized in that: The spacer rod (3) is provided with a limiting plate at any end.