Plunger pump power input part mounting mechanism

Abstract

The utility model relates to the technical field of general machinery, in particular to a mounting mechanism for a power input part of a plunger pump. The plunger pump comprises a pump body, a rotating shaft used for driving a plunger of the plunger pump to reciprocate is arranged in the pump body, and one end of the rotating shaft penetrates through the pump body and extends out. The planetary gear pump is characterized in that a planetary gear speed reducer is fixed on the pump body, the planetary gear speed reducer and the rotating shaft are concentrically arranged, the outward extending end of the rotating shaft is fixedly connected with the output portion of the planetary gear speed reducer, and a coupler used for being connected with a driving motor is arranged on the input portion of the planetary gear speed reducer. The plunger pump adopting the mounting mechanism is simple and convenient to mount and can be used in a long and narrow environment.

Description

Technical Field

[0001] The utility model relates to the technical field of general machinery, in particular to a mounting mechanism for a power input part of a plunger pump. Background Art

[0002] A plunger pump is a type of pump that pumps liquid by rotating a plunger to reciprocate in a cylinder, causing the volume of a sealed working chamber to change. The power source of a plunger pump is generally an electric motor.

[0003] The Chinese utility model patent with application number 202222201191.0 discloses a large-flow plunger pump, which mainly includes a cylindrical pump body, in which a rotating shaft and a plunger that is linked with the rotating shaft and reciprocates to pump liquid when the rotating shaft rotates are concentrically arranged. In order to ensure the torque, the rotating shaft is generally connected to the motor through a reducer. When using the plunger pump with application number 202222201191.0, a reducer needs to be installed additionally, and the operation process is cumbersome. Moreover, this plunger pump is long as a whole. If a traditional gear reducer is used, it will take up space on both sides and cannot be used in a narrow environment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a mounting mechanism for a power input part of a plunger pump. The plunger pump adopting the mounting mechanism is easy to install and can be used in a narrow and long environment.

[0005] To solve the above problems, the following technical solutions are provided:

[0006] The utility model discloses a plunger pump power input mounting mechanism comprising a pump body, wherein a rotating shaft for driving the reciprocating movement of the plunger pump is housed within the pump body, one end of the rotating shaft extending externally through the pump body. The utility model is characterized in that a planetary gear reducer is fixed to the pump body, the planetary gear reducer being arranged concentrically with the rotating shaft, the extending end of the rotating shaft being fixedly connected to the output portion of the planetary gear reducer, and a coupling for connecting to a drive motor is provided on the input portion of the planetary gear reducer.

[0007] Among them, the end face of the planetary gear reducer corresponding to the output part of the planetary gear reducer is against the pump body, the output part of the planetary gear reducer is located in the shell of the planetary gear reducer, and the outward end of the rotating shaft extends into the shell of the planetary gear reducer and is connected to the output part of the planetary gear reducer.

[0008] A center hole is provided on the end surface of the planetary gear reducer that abuts against the pump body. The rotating shaft passes through the center hole and is connected with the output part of the planetary gear reducer. A first bearing is provided between the center hole and the rotating shaft.

[0009] The side wall of the pump body corresponding to the planetary gear reducer is open, and the end surface of the planetary gear reducer corresponding to the output part of the planetary gear reducer is uniformly distributed along its circumference.

[0010] One end of the planetary gear reducer away from the pump body is open, and a guide sleeve is concentrically fixed on the end of the planetary gear reducer away from the pump body, and a sealing cover is fixed on the end away from the planetary gear reducer, and the sealing cover has a center hole; the output part of the planetary gear reducer contains a connecting shaft, the outer end of the connecting shaft passes through the guide sleeve and the center hole in sequence and then extends outward, the connecting shaft and the center hole are matched in a rotating seal, and a second bearing is provided between the connecting shaft and the guide sleeve; the coupling is located on the outer end of the connecting shaft.

[0011] There are two second bearings, which are respectively arranged at the two ends of the guide sleeve, and a separation sleeve is provided on the section of the connecting shaft between the two second bearings.

[0012] The above solution has the following advantages:

[0013] Since the pump body of the plunger pump power input installation mechanism of the present invention is fixed with a planetary gear reducer, the planetary gear reducer is concentrically arranged with the rotating shaft, the extended end of the rotating shaft is fixedly connected to the output of the planetary gear reducer, and the input of the planetary gear reducer is provided with a coupling for connecting to the drive motor. The plunger pump adopting this input installation mechanism directly contains a reducer, so there is no need to install a reducer separately, which greatly simplifies the subsequent installation process. Moreover, the reducer adopted by this installation mechanism is a planetary gear reducer, and the input and output of the planetary gear reducer are concentrically arranged. After being connected to the motor, the motor, reducer and plunger pump are all coaxially arranged, which does not occupy the space on both sides of the use occasion, so that the entire equipment can be used in a narrow and long environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the installation structure of the power input part of the plunger pump of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the installation mechanism structure of the power input part of the plunger pump of the present utility model. DETAILED DESCRIPTION

[0016] The present invention will be described in further detail below with reference to the accompanying drawings.

[0017] like Figure 1As shown, the plunger pump power input installation mechanism of the present invention includes a cylindrical pump body 1. The pump body 1 contains a rotating shaft 11 for driving the reciprocating movement of the plunger of the plunger pump. One end of the rotating shaft 11 extends through the pump body 1. A planetary gear reducer 2 is fixed to the pump body 1. In this embodiment, the structure within the pump body 1 is prior art, and reference can be made to the Chinese Utility Model Patent Application No. 2022222011910.

[0018] like Figure 1 and Figure 2 As shown, the side wall of the pump body 1 corresponding to the planetary gear reducer 2 is open, with the rotating shaft 11 extending outward from the open side wall of the pump body 1. The planetary gear reducer 2 is concentrically arranged with the pump body 1, and the planetary gear reducer 2 and the rotating shaft 11 are also concentric. The end face of the planetary gear reducer 2 corresponding to the output of the planetary gear reducer 2 abuts against the end of the pump body 1 corresponding to the extended end of the rotating shaft 11. The planetary gear reducer 2 has flanges on all four sides, and corresponding flange holes are provided on the pump body 1. The pump body 1 and the planetary gear reducer 2 are fixedly connected via flanges and bolts. The end face of the planetary gear reducer 2 abutting the pump body 1 has a center hole, through which the rotating shaft 11 passes and connects to the output of the planetary gear reducer 2. A first bearing 7 is located between the center hole and the rotating shaft 11. The extended end of the rotating shaft 11 is fixedly connected to the output of the planetary gear reducer 2. The input of the planetary gear reducer 2 is provided with a coupling 5 for connecting to the drive motor.

[0019] like Figure 2 As shown, the output portion of the planetary gear reducer 2 is located within the housing of the planetary gear reducer 2, and the extended end of the rotating shaft 11 extends into the housing of the planetary gear reducer 2 and is connected to the output portion of the planetary gear reducer 2. The output portion of the planetary gear reducer 2 is located within the housing, and the planetary gear reducer 2 is directly connected to the pump body 1, further shortening the length of the entire device and saving space. The specific structure of the planetary gear reducer 2 is prior art and will not be repeated here.

[0020] like Figure 2 As shown, in this embodiment, the end surface of the planetary gear reducer 2 corresponding to the output portion of the planetary gear reducer 2 is uniformly distributed along its circumference with through holes 10. The inner cavity of the planetary gear reducer 2 is connected to the inner cavity of the pump body 1, and the two share a lubricating oil system.

[0021] like Figure 2As shown, the end of the planetary gear reducer away from the pump body 1 is open, and a guide sleeve 3 is concentrically fixed to the end of the planetary gear reducer away from the pump body 1. A sealing cover 6 with a center hole is fixed to the end of the planetary gear reducer away from the pump body 1. The output portion of the planetary gear reducer includes a connecting shaft 4. The outer end of the connecting shaft 4 passes through the guide sleeve 3 and the center hole in sequence and protrudes outward. The connecting shaft 4 and the center hole are engaged in a rotating seal. A second bearing 9 is located between the connecting shaft 4 and the guide sleeve 3. A coupling 5 is located on the outer end of the connecting shaft 4. Two second bearings 9 are located at both ends of the guide sleeve 3. A separator sleeve 8 is located on the section of the connecting shaft 4 between the two second bearings 9. The guide sleeve 3 and the second bearing 9 support the connecting shaft 4, ensuring its strength.

[0022] In this embodiment, the coupling 5 is a serpentine spring coupling 5 , and its specific structure belongs to the prior art and will not be described in detail here.

[0023] A plunger pump using this solution's input mounting mechanism directly incorporates a reducer, eliminating the need for a separate reducer and significantly simplifying subsequent installation. Furthermore, this mounting mechanism utilizes a planetary gear reducer, whose input and output are concentrically arranged. Once connected to the motor, the motor, reducer, and plunger pump are all coaxially arranged, eliminating the need for space on either side of the device, allowing the entire device to be used in narrow, elongated environments. Furthermore, the pump body 1, planetary gear reducer, and guide sleeve 3 are all compactly arranged, further reducing the size.

Claims

1. A plunger pump power input installation mechanism, comprising a pump body, a rotating shaft for driving the plunger of the plunger pump to reciprocate, one end of the rotating shaft extending through the pump body; characterized in that: A planetary gear reducer is fixed on the pump body, the planetary gear reducer is concentrically arranged with the rotating shaft, the extended end of the rotating shaft is fixedly connected to the output part of the planetary gear reducer, and a coupling for connecting to the drive motor is provided on the input part of the planetary gear reducer.

2. The plunger pump power input part installation mechanism according to claim 1, characterized in that: The end face of the planetary gear reducer corresponding to the output part of the planetary gear reducer is against the pump body, the output part of the planetary gear reducer is located in the shell of the planetary gear reducer, and the outward end of the rotating shaft extends into the shell of the planetary gear reducer and is connected to the output part of the planetary gear reducer.

3. The plunger pump power input part installation mechanism according to claim 2, characterized in that: A center hole is provided on the end surface of the planetary gear reducer that abuts against the pump body. The rotating shaft passes through the center hole and is connected to the output part of the planetary gear reducer. A first bearing is provided between the center hole and the rotating shaft.

4. The plunger pump power input part installation mechanism according to claim 2, characterized in that: The side wall of the pump body corresponding to the planetary gear reducer is open, and the end face of the planetary gear reducer corresponding to the output part of the planetary gear reducer is uniformly distributed with through holes along its circumference.

5. The plunger pump power input part installation mechanism according to claim 1, characterized in that: One end of the planetary gear reducer away from the pump body is open, and a guide sleeve is concentrically fixed on the end of the planetary gear reducer away from the pump body, and a sealing cover is fixed on the end away from the planetary gear reducer, and the sealing cover has a center hole; the output part of the planetary gear reducer contains a connecting shaft, the outer end of the connecting shaft passes through the guide sleeve and the center hole in sequence and then extends outward, the connecting shaft and the center hole are matched in a rotating seal, and a second bearing is provided between the connecting shaft and the guide sleeve; the coupling is located on the outer end of the connecting shaft.

6. The plunger pump power input part mounting mechanism according to claim 5, characterized in that: There are two second bearings, which are respectively arranged at the two ends of the guide sleeve, and a separation sleeve is provided on the section of the connecting shaft between the two second bearings.

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