Plunger pump disassembling and assembling tool

Abstract

The utility model relates to a plunger pump disassembling and assembling tool. The plunger pump disassembling and assembling tool comprises a threaded rod, an adjusting nut and a baffle. The threaded rod is used for penetrating through a pump head box body of the plunger pump; the first end of the threaded rod is used for penetrating out of a first side plate of the pump head box so as to be connected with a plunger connecting rod of the plunger pump, and the threaded rod is used for being coaxially arranged with the plunger connecting rod. The second end of the threaded rod is used for penetrating out of the second side plate of the pump head box and penetrating through the baffle so as to be connected with the adjusting nut. The first side face of the baffle can abut against the second side plate of the box body, and the second side face of the baffle can abut against the adjusting nut. The threaded rod moves in the axial direction under the action of the adjusting nut to drive the plunger connecting rod to move until the plunger connecting rod is in the maximum stroke, friction between the eccentric shaft and the plunger connecting rod is about zero, and the pressure spring is in the minimum tension, then the eccentric shaft is disassembled and assembled to be connected with the motor for work, cooperation of multiple persons is not needed, and equipment overhaul is finished. And the maintenance safety is improved while the manpower is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of plunger pumps, and in particular, to a plunger pump disassembly and assembly tool. Background Art

[0002] Most of the dosing pumps are tested with the plunger connecting rod. Every time the plunger pump is overhauled and the connecting rod is installed, the spring rebound force is very large during the disassembly and reassembly process, and it is easy to hurt your hands and equipment. The disassembly and assembly of the plunger connecting rod during maintenance and overhaul brings a lot of trouble to the staff. The disassembly and assembly takes a long time and is difficult. The disassembly and assembly will cause damage to the equipment and the hands of the maintenance personnel are also often injured. The dosing pump is in long-term high-temperature and high-pressure operation. Once an emergency defect occurs, it takes a lot of effort to stop the standby and eliminate the defect during the overhaul. After implementing this tool, manpower can be reduced, the maintenance completion time can be improved, and the equipment can be put into operation in time.

[0003] The maintenance method in the related technology is: stop the dosing pump equipment and confirm that the pressure has been released. After disconnecting the pump from the main pipeline, remove the motor and the eccentric shaft of the dosing pump, or remove the pump head and plunger, and use a crowbar to control the plunger connecting rod; if the packing and the plunger are too loose and difficult to install and unload, the packing should be tightened and then the plunger connecting rod should be disassembled and assembled with a crowbar. When the above method cannot be used for installation, the stroke adjustment rod needs to be pressed against the piston connecting rod, and this process often requires the cooperation of multiple people to complete. Utility Model Content

[0004] The purpose of the present invention is to provide a plunger pump disassembly and assembly tool to solve the technical problems existing in the related art.

[0005] In order to achieve the above-mentioned object, the present disclosure provides a plunger pump disassembly and assembly tool, the plunger pump disassembly and assembly tool comprising a threaded rod, an adjusting nut and a baffle;

[0006] The threaded rod is used to penetrate the pump head box of the plunger pump;

[0007] The first end of the threaded rod is used to pass through the first side plate of the pump head housing to be connected to the plunger connecting rod of the plunger pump, and the threaded rod is used to be coaxially arranged with the plunger connecting rod;

[0008] The second end of the threaded rod is used to pass through the second side plate of the pump head housing and through the baffle plate to be connected with the adjusting nut;

[0009] Wherein, the first side surface of the baffle plate can abut against the second side plate of the box body, and the second side surface of the baffle plate can abut against the adjusting nut.

[0010] Optionally, the baffle is formed with a first through hole which can be coaxially arranged with the plunger connecting rod, and the threaded rod is movably inserted through the first through hole.

[0011] Optionally, the disassembly and assembly tooling for the plunger pump further includes a first gasket and a second gasket;

[0012] The first gasket is formed with a first gasket hole through which the threaded rod can movably pass, and the second gasket is formed with a second gasket hole through which the threaded rod can movably pass;

[0013] The first gasket is used to be arranged between the second side plate of the pump head housing and the first side surface of the baffle, and the second gasket is arranged between the second side surface of the baffle and the adjusting nut.

[0014] Optionally, the disassembly and assembly tooling for the plunger pump further includes an elastic buffer pad;

[0015] The elastic buffer pad is formed with a buffer pad hole through which the threaded rod can movably pass. The elastic buffer pad is arranged on the first side surface of the baffle and is used to be arranged in a fitting manner with the pump head housing.

[0016] Optionally, the elastic buffer pad is bonded to the first side surface of the baffle.

[0017] Optionally, the threaded rod includes a first rod section, a second rod section and a third rod section. The first rod section is connected to the first end of the second rod section, and the third rod section is connected to the second end of the second rod section;

[0018] Wherein, the outer surface of the first rod section is formed with a first external thread arranged along its axial direction, and the outer surface of the third rod section is formed with a second external thread arranged along its axial direction;

[0019] The first external thread is used to form a threaded fit with the internal thread at the end of the plunger connecting rod, and the second external thread forms a threaded fit with the internal thread of the adjusting nut.

[0020] Optionally, the baffle is configured as a square plate, and the square plate is configured as a steel plate;

[0021] The length of the square plate is between 190 mm and 210 mm, the width of the square plate is between 190 mm and 210 mm, and the thickness of the square plate is between 8 mm and 12 mm.

[0022] Optionally, the baffle is configured as a circular plate, and the circular plate is configured as a steel plate;

[0023] The diameter of the circular plate is between 190 mm and 210 mm, and the thickness of the circular plate is between 8 mm and 12 mm.

[0024] Optionally, the threaded rod and the adjusting nut are made of steel, and the length of the threaded rod is between 290 mm and 310 mm.

[0025] Optionally, the adjusting nut has a first adjusting position relative to the threaded rod;

[0026] The adjusting nut can abut against the second side surface of the baffle at the first adjusting position, and the adjusting nut can be used to drive the frictional force between the plunger connecting rod and the eccentric shaft of the plunger pump to be zero.

[0027] In the above technical solution, when the plunger pump needs to be disassembled and assembled, the maintenance personnel can first remove the parts in the pump head box, and then pass the threaded rod of the plunger pump disassembly and assembly tooling of the present disclosure through the pump head box body and then connect it to the end of the plunger connecting rod. It should be noted that a threaded hole with an internal thread is formed at the end of the plunger connecting rod, and the threaded rod can be screwed into the threaded hole to be connected to the plunger connecting rod. After the connection is completed, a baffle can be first sleeved on the threaded rod, and then the adjusting nut can be screwed in. The sleeved baffle abuts against the second side plate of the pump head box body, the adjusting nut is adjusted and abuts against the second side surface of the baffle, and then by further rotating the adjusting nut, because the baffle abuts against the second side plate of the pump head box body and the baffle is in a fixed state, the threaded rod moves along its axial direction under the action of the adjusting nut, thereby driving the plunger connecting rod to move until the plunger connecting rod is fixed at the maximum stroke, the friction between the eccentric shaft and the plunger connecting rod is about zero, and the pressure spring is at the minimum tension. Then, the connection between the eccentric shaft and the motor is disassembled and assembled, opened or reinstalled in sequence, without the need for multiple people to cooperate, until the equipment maintenance is completed, reducing manpower and improving the safety of maintenance at the same time.

[0028] Other features and advantages of the present disclosure will be described in detail in the following specific implementation section. Brief Description of the Drawings

[0029] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification, and are used to explain the present disclosure together with the following specific implementation manners, but do not constitute a limitation to the present disclosure. In the drawings:

[0030] Figure 1 is a schematic diagram of the cooperation between a part of the structure of the plunger pump disassembly and assembly tooling of an embodiment of the present disclosure and the plunger pump in the use state.

[0031] Figure 2 is a schematic diagram of the structure of the plunger pump disassembly and assembly tooling of an embodiment of the present disclosure.

[0032] Description of the Reference Numerals

[0033] 1. Screw rod; 11. First rod section; 110. First external thread; 12. Second rod section; 13. Third rod section; 130. Second external thread;

[0034] 2. Adjusting nut;

[0035] 3. Baffle plate; 31. First side; 32. Second side; 30. First through hole;

[0036] 10. Pump head housing; 101. First side plate; 102. Second side plate;

[0037] 20. Plunger connecting rod; 40. Eccentric shaft; 50. Motor; 501. Motor body; 502. Motor shaft; 60. Fuel tank; 70. Pressure spring; 100. Plunger pump. Specific embodiments

[0038] The following will describe the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustration and explanation of the present disclosure, and are not intended to limit the present disclosure.

[0039] In the present disclosure, unless otherwise stated, the directional terms such as "inside, outside" refer to the inside and outside of the specific structural contour, and the terms such as "first, second" are only used to distinguish one element from another element, and do not have sequence and importance.

[0040] Referring to Figure 1 and Figure 2 As shown, the present disclosure provides a disassembling and assembling tooling for a plunger pump, which includes a screw rod 1, an adjusting nut 2 and a baffle plate 3. The screw rod 1 is used to pass through the pump head housing 10 of the plunger pump 100; the first end of the screw rod 1 is used to pass through the first side plate 101 of the pump head housing 10 for connecting with the plunger connecting rod 20 of the plunger pump, and the screw rod 1 is used to be coaxially arranged with the plunger connecting rod 20; the second end of the screw rod 1 is used to pass through the second side plate 102 of the pump head housing 10 and pass through the baffle plate 3 to connect with the adjusting nut 2. Among them, the first side 31 of the baffle plate 3 can abut against the second side plate 102 of the housing 10, and the second side 32 of the baffle plate 3 can abut against the adjusting nut 2.

[0041] In the above technical solution, when the plunger pump 100 needs to be disassembled and assembled, the maintenance personnel can first remove the parts in the pump head housing 10, and then pass the threaded rod 1 of the plunger pump disassembly and assembly tooling of the present disclosure through the pump head housing 10 and connect it to the end of the plunger connecting rod 20. It should be noted that the end of the plunger connecting rod 20 is formed with a threaded hole with internal threads, and the threaded rod 1 can be screwed into the threaded hole to connect with the plunger connecting rod 20. After the connection is completed, a baffle 3 can be first sleeved on the threaded rod 1, and then an adjusting nut 2 is screwed in. The sleeved baffle 3 abuts against the second side plate 102 of the pump head housing 10, the adjusting nut 2 is adjusted and abuts against the second side surface 32 of the baffle 3. Then, by further rotating the adjusting nut 2, since the baffle 3 abuts against the second side plate 102 of the pump head housing 10, the baffle 3 is in a fixed state. Under the action of the adjusting nut 2, the threaded rod 1 moves along its axial direction, thereby driving the plunger connecting rod 20 to move until the plunger connecting rod 20 is fixed at the maximum stroke, the friction between the eccentric shaft 40 and the plunger connecting rod 20 is approximately zero, and the pressure spring 70 is at the minimum tension. Then, the connection work between the eccentric shaft 40 and the motor 50 is disassembled and assembled. Open or reinstall in sequence, without the need for multiple people to cooperate, until the equipment maintenance is completed, reducing manpower while improving the safety of maintenance.

[0042] Optionally, referring to Figure 2 As shown, the baffle 3 is formed with a first through hole 30. The first through hole 30 can be used for coaxial arrangement with the plunger connecting rod 20, and the threaded rod 1 can movably pass through the first through hole 30. The first through hole 30 can be constructed in any suitable shape, and the present disclosure does not limit this. For example, the first through hole 30 can be constructed as a circular hole.

[0043] Optionally, the plunger pump disassembly and assembly tooling can further include a first gasket (not shown) and a second gasket (not shown); the first gasket is formed with a first gasket hole for the threaded rod 1 to movably pass through, and the second gasket is formed with a second gasket hole for the threaded rod 1 to movably pass through; the first gasket is used to be disposed between the second side plate 102 of the pump head housing 10 and the first side surface 31 of the baffle 3, and the second gasket is disposed between the second side surface 32 of the baffle 3 and the adjusting nut 2. By providing the first gasket and the second gasket, the pressure can be evenly distributed and the wear can be reduced.

[0044] In another embodiment, the plunger pump disassembly and assembly tooling can further include an elastic buffer pad (not shown); the elastic buffer pad is formed with a buffer pad hole for the threaded rod 1 to movably pass through, the elastic buffer pad is disposed on the first side surface 31 of the baffle 3, and the elastic buffer pad is used to be attached to the pump head housing 10, so as to prevent the baffle 3 from directly causing wear to the pump head housing 10 and effectively protecting the pump head housing 10.

[0045] For example, the elastic cushion can be bonded to the first side surface 31 of the baffle 3. However, the present disclosure does not limit the way the elastic cushion is connected to the baffle 3. The elastic cushion can be configured as a rubber pad, and the present disclosure also does not limit the specific type of the elastic cushion.

[0046] Referring to Figure 2 As shown, the threaded rod 1 includes a first rod section 11, a second rod section 12, and a third rod section 13. The first rod section 11 is connected to the first end of the second rod section 12, and the third rod section 13 is connected to the second end of the second rod section 12. Among them, a first external thread 110 arranged along its axial direction is formed on the outer surface of the first rod section 11, and a second external thread 130 arranged along its axial direction is formed on the outer surface of the third rod section 13;

[0047] The first external thread 110 is used for thread - fitting with the internal thread at the end of the plunger connecting rod 20, and the second external thread 130 is thread - fitted with the internal thread of the adjusting nut 2.

[0048] In this embodiment, the outer surface of the second rod section 12 may or may not be provided with threads, and the present disclosure does not limit this.

[0049] In addition, the baffle 3 is configured as a square plate, and the square plate is configured as a steel plate; the length of the square plate is between 190 mm and 210 mm, the width of the square plate is between 190 mm and 210 mm, and the thickness of the square plate is between 8 mm and 12 mm.

[0050] For example, the length of the square plate can be 190 mm, can be 195 mm, or can be 210 mm, and the present disclosure does not limit this. The width can be 90 mm, can be 195 mm, or can be 210 mm, and the present disclosure does not limit this. The thickness can be 8 mm, can be 10 mm, or can be 12 mm, and the present disclosure does not limit this. In addition, the present disclosure does not limit the specific shape and material of the baffle 3.

[0051] In other embodiments, the baffle 3 can be configured as a circular plate, and the circular plate is configured as a steel plate; the diameter of the circular plate is between 190 mm and 210 mm, and the thickness of the circular plate is between 8 mm and 12 mm. For example, the diameter of the circular plate can be 190 mm, can be 195 mm, or can be 210 mm, and the present disclosure does not limit this. The thickness can be 8 mm, can be 10 mm, or can be 12 mm, and the present disclosure does not limit this.

[0052] In addition, the above-mentioned threaded rod 1 and adjusting nut 2 are made of steel, and the length of the threaded rod 1 is between 290 mm and 310 mm. For example, the length of the threaded rod 1 can be 290 mm, can be 300 mm, or can be 310 mm. The present disclosure does not limit the specific length of the threaded rod 1. In addition, the present disclosure does not limit the specific material of the threaded rod 1.

[0053] Optionally, the adjusting nut 2 has a first adjusting position relative to the threaded rod 1; the adjusting nut 2 can abut against the second side surface 32 of the baffle 3 in the first adjusting position, and the adjusting nut 2 can be used to drive the friction force between the plunger connecting rod 20 and the eccentric shaft 40 of the plunger pump to be zero. That is, no force is applied to the eccentric shaft 40, which facilitates the disassembly and installation of the eccentric shaft 40 and the motor 50.

[0054] In addition, it should be noted that the motor 50 includes a motor body 501 and a motor shaft 502. The motor body 501 is arranged outside the fuel tank 60 of the plunger pump 100, and the motor shaft 502 extends into the fuel tank 60 to be connected to the eccentric shaft 40.

[0055] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0056] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0057] In addition, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A disassembly and assembly tooling for a plunger pump, characterized in that, The disassembly and assembly tooling for the plunger pump includes a threaded rod, an adjusting nut, and a baffle plate; The threaded rod is used to pass through the pump head housing of the plunger pump; The first end of the threaded rod is used to pass out through the first side plate of the pump head housing for connecting with the plunger connecting rod of the plunger pump, and the threaded rod is arranged coaxially with the plunger connecting rod; The second end of the threaded rod is used to pass out through the second side plate of the pump head housing and pass through the baffle plate to connect with the adjusting nut; Wherein, the first side surface of the baffle plate can abut against the second side plate of the housing, and the second side surface of the baffle plate can abut against the adjusting nut.

2. The disassembling and assembling tooling for the plunger pump according to claim 1, wherein The baffle plate is formed with a first through hole which can be used for arranging coaxially with the plunger connecting rod, and the threaded rod can movably pass through the first through hole.

3. The plunger pump disassembly and assembly tooling according to claim 2, wherein, The disassembly and assembly tooling for the plunger pump further includes a first gasket and a second gasket; The first gasket is formed with a first gasket hole for the threaded rod to movably pass through, and the second gasket is formed with a second gasket hole for the threaded rod to movably pass through; The first gasket is used to be arranged between the second side plate of the pump head housing and the first side surface of the baffle plate, and the second gasket is arranged between the second side surface of the baffle plate and the adjusting nut.

4. The disassembling and assembling tooling for the plunger pump according to claim 2, characterized in that The disassembly and assembly tooling for the plunger pump further includes an elastic buffer pad; The elastic buffer pad is formed with a buffer pad hole for the threaded rod to movably pass through, the elastic buffer pad is arranged on the first side surface of the baffle plate, and the elastic buffer pad is used to be arranged in a fitting manner with the pump head housing.

5. The disassembling and assembling tooling for the plunger pump according to claim 4, wherein, The elastic buffer pad is bonded to the first side surface of the baffle plate.

6. The disassembly and assembly tooling for the plunger pump according to any one of claims 1-5, characterized in that, The threaded rod includes a first rod section, a second rod section, and a third rod section. The first rod section is connected to the first end of the second rod section, and the third rod section is connected to the second end of the second rod section; Wherein, the outer surface of the first rod section is formed with a first external thread arranged along its axial direction, and the outer surface of the third rod section is formed with a second external thread arranged along its axial direction; The first external thread is used to form a thread fit with the internal thread at the end of the plunger connecting rod, and the second external thread forms a thread fit with the internal thread of the adjusting nut.

7. The plunger pump disassembly and assembly tooling according to any one of claims 1-5, characterized in that, The baffle plate is configured as a square plate, and the square plate is made of steel plate; The length of the square plate is between 190 mm and 210 mm, the width of the square plate is between 190 mm and 210 mm, and the thickness of the square plate is between 8 mm and 12 mm.

8. The disassembling and assembling tooling for the plunger pump according to any one of claims 1-5, characterized in that, The baffle plate is configured as a circular plate, and the circular plate is made of steel plate; The diameter of the circular plate is between 190 mm and 210 mm, and the thickness of the circular plate is between 8 mm and 12 mm.

9. The plunger pump disassembly and assembly tooling according to any one of claims 1-5, characterized in that, The threaded rod and the adjusting nut are made of steel material, and the length of the threaded rod is between 290 mm and 310 mm.

10. The disassembling and assembling tooling for a plunger pump according to any one of claims 1-5, characterized in that, The adjusting nut has a first adjusting position relative to the threaded rod; The adjusting nut can abut against the second side surface of the baffle plate in the first adjusting position, and the adjusting nut can be used to drive the frictional force between the plunger connecting rod and the eccentric shaft of the plunger pump to be zero.

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