CN210509581U - External member for connecting gear shafts of two gear pumps - Google Patents

Abstract

The utility model discloses a kit for coupling gear shaft of two gear pumps, the drive arrangement that power output shaft corresponds is single output shaft motor, the gear pump that first gear pump main shaft and second gear pump main shaft correspond respectively is the syntropy and rotates, coupling sleeve body inner chamber rotates and installs first rotator, second rotator and third rotator, the gear that first rotator periphery cup jointed matches with the gear engagement that second rotator, third rotator periphery cup jointed respectively, power output shaft runs through the back of coupling sleeve body perpendicularly and cup joints with the inner chamber of first rotator, first gear pump main shaft and second gear pump main shaft run through the front of coupling sleeve body perpendicularly respectively and cup joint with the inner chamber of second rotator and third rotator; the single-output-shaft motor can conveniently and simultaneously drive two gear pumps which are the same in steering, so that the increase of the input cost of equipment is avoided, the equipment assembling space is compact, and the occupied space is reduced.

Description

External member for connecting gear shafts of two gear pumps

Technical Field

The utility model relates to a gear pump technical field specifically is an external member for hookup two gear pump's gear shaft.

Background

The gear pump is a rotary pump that conveys or pressurizes a liquid by changing and moving a displacement volume formed between the pump cylinder and a meshing gear. Two gears, pump body and front and back covers form two closed spaces, when the gears rotate, the volume of the space on the gear disengagement side is changed from small to large, vacuum is formed, liquid is sucked, the volume of the space on the gear engagement side is changed from large to small, and the liquid is squeezed into the pipeline, the suction cavity and the discharge cavity are separated by the meshing line of the two gears, and the pressure of the discharge port of the gear pump completely depends on the resistance of the pump outlet. The gear pump is widely used because of its simple structure, small size, light weight, convenient manufacture, low price, good self-priming capability, strong anti-pollution capability, etc.

In some special use occasions, two gear pumps are required to be connected and driven by the same power equipment. At present, a double-output-shaft motor driving mode is generally adopted, a shaft on one side of the motor is connected with a forward rotation gear pump, and a shaft on the other side of the motor is connected with a reverse rotation gear pump, so that the investment of the double-output-shaft motor is additionally increased, the reverse rotation gear pump is required to be equipped, the use cost is greatly increased, and the assembly mode of the equipment occupies a larger space.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an external member for coupling the gear shaft of two gear pumps for solve the big and big problem of occupation space of equipment input cost that single-machine drive double gear pump exists among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an external member for hookup gear shaft of two gear pumps, includes hookup external member body, power output shaft, first gear pump main shaft and second gear pump main shaft, the drive arrangement that power output shaft corresponds is single output shaft motor, the gear pump that first gear pump main shaft and second gear pump main shaft correspond respectively is the syntropy and rotates, hookup external member body inner chamber rotates and installs first rotator, second rotator and third rotator, the axis of first rotator, second rotator and third rotator is parallel to each other, and the peripheral gear that cup joints of first rotator respectively with the gear engagement that the second rotator, the peripheral cup joint of third rotator match, power output shaft runs through perpendicularly the back of hookup external member body with the inner chamber of first rotator cup joints, first gear pump main shaft and second gear pump main shaft run through perpendicularly respectively the front of hookup external member body with the front of second rotator and the gear pump main shaft of third rotator The inner cavity is sleeved.

Preferably, the front and back ends of the first, second and third rotating bodies are respectively rotatably connected to the inner wall of the coupling sleeve body, key pin grooves are respectively formed in the side walls of the inner cavities of the first, second and third rotating bodies along the axial direction, key pins are nested in a cavity structure formed by the key pin grooves in the inner cavity of the first rotating body and the key pin grooves in the power output shaft, and the first gear pump spindle and the second gear pump spindle are respectively fixedly connected to the inner cavities of the second and third rotating bodies through the key pins.

Preferably, the coupling sleeve body comprises an upper shell and a lower shell, and the edges of the upper shell and the lower shell are fixedly connected through bolts.

Preferably, a plug body is sleeved in a circular through hole internal thread formed on one side, close to the back, of the upper surface of the upper shell.

Preferably, the lower surface of cock body perpendicular fixedly connected with scale in middle position, the surface of scale upwards is carved with the scale mark by the bottom, just the bottom of scale with the bottom surface contact of inferior valve body inner chamber.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model relates to a hookup external member body inner chamber rotates and installs first rotator, second rotator and third rotator, power output shaft runs through the back and the first rotator inner chamber of hookup external member body and cup joints, first gear pump main shaft and second gear pump main shaft run through the front of hookup external member body respectively and cup joint with the inner chamber of second rotator and third rotator, the periphery of three rotator is all overlapped and is equipped with the gear, and first rotator upper end forehead gear matches with the gear engagement on second rotator and the third rotator respectively, make a single output shaft motor can realize two gear pumps that the while drives turns to simultaneously conveniently, the increase of equipment input cost has not only been avoided, and equipment assembly space is compact, occupation space has been reduced.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a schematic cross-sectional view of a-a in fig. 2 according to the present invention.

In the figure: 1-coupling a kit body; 11-an upper shell; 111-a plug body; 112-scale; 12-a lower housing; 2-a power take-off shaft; 21-a first rotating body; 3-a first gear pump main shaft; 31-a second rotating body; 4-a second gear pump main shaft; 41-a third rotating body; 5-key pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution, a kit for connecting gear shafts of two gear pumps, comprising a connecting kit body 1, a power output shaft 2, a first gear pump spindle 3 and a second gear pump spindle 4, wherein a driving device corresponding to the power output shaft 2 is a single output shaft motor, the gear pumps corresponding to the first gear pump spindle 3 and the second gear pump spindle 4 respectively rotate in the same direction, a first rotating body 21, a second rotating body 31 and a third rotating body 41 are rotatably installed in an inner cavity of the connecting kit body 1, axes of the first rotating body 21, the second rotating body 31 and the third rotating body 41 are parallel to each other, gears sleeved on the periphery of the first rotating body 21 are respectively engaged with gears sleeved on the periphery of the second rotating body 31 and the third rotating body 41, the power output shaft 2 vertically penetrates through the back of the connecting kit body 1 and is sleeved with the inner cavity of the first rotating body 21, first gear pump main shaft 3 and second gear pump main shaft 4 run through the front of connection external member body 1 respectively perpendicularly and cup joint with the inner chamber of second rotator 31 and third rotator 41, single output shaft motor drives power output shaft 2 rotatory, power output shaft 2 drives first rotator 21 rotatory, first rotator 21 drives first gear pump main shaft 3 and second gear pump main shaft 4 rotation through second rotator 31 and third rotator 41 respectively to reach the effect that single output shaft motor drives two gear pumps that the same turned to simultaneously.

The front and back ends of the first rotating body 21, the second rotating body 31 and the third rotating body 41 are respectively connected with the inner wall of the connecting sleeve body 1 in a rotating manner, the side walls of the inner cavities of the first rotating body 21, the second rotating body 31 and the third rotating body 41 are respectively provided with a key pin groove along the axial direction, a key pin 5 is embedded in a cavity structure formed by the key pin groove in the inner cavity of the first rotating body 21 and the key pin groove on the power output shaft 2, and the first gear pump main shaft 3 and the second gear pump main shaft 4 are respectively fixedly connected with the inner cavities of the second rotating body 31 and the third rotating body 41 through the key pin 5.

The connecting sleeve body 1 comprises an upper shell 11 and a lower shell 12, the edges of the upper shell 11 and the lower shell 12 are fixedly connected through bolts, when the gear pump is connected and assembled, bearings are respectively sleeved at the peripheries of the two ends of the front surface and the back surface of a first rotating body 21, a second rotating body 31 and a third rotating body 41, then the first rotating body 21 is sleeved with a power output shaft 2 through a key pin 5, the second rotating body 31 is sleeved with a first gear pump main shaft 3 through the key pin 5, the third rotating body 41 is sleeved with a second gear pump main shaft 4 through the key pin 5, then the first rotating body 21, the second rotating body 31 and the third rotating body 41 are placed in the inner cavity of the lower shell 11, meanwhile, the first rotating body 21, the second rotating body 31 and the third rotating body 41 are respectively and correspondingly placed in semicircular grooves which are arranged near the front surface and the back surface of the lower shell 12, then the upper shell 11 is connected with the lower shell 12, the gear pump can be quickly connected.

Go up the circular through-hole internal thread that casing 11 upper surface was seted up near back one side and cup jointed cock body 111, with cock body 111 follow through-hole internal rotation back, can be through the leading-in grease of through-hole to the inner chamber of coupling external member body 1 to lubricate and dispel the heat first rotator 21, second rotator 31 and third rotator 41.

Perpendicular fixedly connected with scale 112 of position between two parties of lower surface of cock body 111, scale 112's surface is upwards carved with the scale mark by the bottom, and the bottom of scale 112 and the bottom surface contact of casing 12 inner chamber down, through taking out cock body 111 and scale 112, can be through the oil level condition of the interior grease of the oil stain inspection coupling external member body 1 on the scale 112.

The working principle is as follows: when the gear pump is connected and assembled, bearings are respectively sleeved on the peripheries of the two ends of the front surface and the back surface of the first rotating body 21, the second rotating body 31 and the third rotating body 41, the first rotating body 21 is sleeved with the power output shaft 2 through the key pin 5, the second rotating body 31 is sleeved with the first gear pump spindle 3 through the key pin 5, the third rotating body 41 is sleeved with the second gear pump spindle 4 through the key pin 5, then the first rotating body 21, the second rotating body 31 and the third rotating body 41 are placed in the inner cavity of the lower shell 11, the first rotating body 21, the second rotating body 31 and the third rotating body 41 are correspondingly placed in semicircular grooves formed in the lower shell 12 close to the front surface and the back surface, and then the upper shell 11 and the lower shell 12 are sewn and connected; when the single-output-shaft motor is used, the single-output-shaft motor drives the power output shaft 2 to rotate, the power output shaft 2 drives the first rotating body 21 to rotate, and the first rotating body 21 drives the first gear pump main shaft 3 and the second gear pump main shaft 4 to rotate through the second rotating body 31 and the third rotating body 41 respectively, so that the effect that the single-output-shaft motor drives two gear pumps which are in the same direction at the same time is achieved; after the plug body 111 is screwed out of the through hole, grease can be introduced into the inner cavity of the connecting kit body 1 through the through hole, and the oil level condition of the grease in the connecting kit body 1 can be checked through oil stains on the scale 112.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a external member for coupling gear shaft of two gear pumps, includes coupling external member body (1), power take off (2), first gear pump main shaft (3) and second gear pump main shaft (4), its characterized in that: drive arrangement that power output shaft (2) corresponds is single output shaft motor, the gear pump that first gear pump main shaft (3) and second gear pump main shaft (4) correspond respectively is the syntropy and rotates, hookup cover body (1) inner chamber rotates and installs first rotator (21), second rotator (31) and third rotator (41), first rotator (21), second rotator (31) are parallel to each other with the axis of third rotator (41), and the gear that first rotator (21) periphery cup jointed respectively with the gear engagement that second rotator (31), third rotator (41) periphery cup jointed matches, power output shaft (2) run through perpendicularly the back of hookup cover body (1) with the inner chamber of first rotator (21) cup joints, first gear pump main shaft (3) and second gear pump main shaft (4) run through perpendicularly respectively the front of hookup cover body (1) with the front of second rotator (1) with the inner chamber of second rotator cup joints (31) And the inner cavity of the third rotating body (41) is sleeved.

2. A kit for coupling gear shafts of two gear pumps according to claim 1, characterized in that: the front side and the back side of the first rotating body (21), the second rotating body (31) and the third rotating body (41) are respectively connected with the inner wall of the connecting sleeve body (1) in a rotating mode, key pin grooves are respectively formed in the side walls of the inner cavities of the first rotating body (21), the second rotating body (31) and the third rotating body (41) in the axial direction, key pins (5) are embedded in the key pin grooves in the inner cavity of the first rotating body (21) and in the cavity structure formed by the key pin grooves in the power output shaft (2), and the first gear pump spindle (3) and the second gear pump spindle (4) are respectively fixedly connected with the inner cavities of the second rotating body (31) and the third rotating body (41) through the key pins (5).

3. A kit for coupling gear shafts of two gear pumps according to claim 2, characterized in that: the connecting sleeve body (1) comprises an upper shell (11) and a lower shell (12), and the edges of the upper shell (11) and the lower shell (12) are fixedly connected through bolts.

4. A kit for coupling gear shafts of two gear pumps according to claim 3, characterized in that: and a plug body (111) is sleeved in a circular through hole internal thread formed on one side of the upper surface of the upper shell (11) close to the back surface.

5. A kit for coupling gear shafts of two gear pumps according to claim 4, characterized in that: perpendicular fixedly connected with scale (112) in the middle position of the lower surface of cock body (111), the surface of scale (112) is upwards carved with the scale mark by the bottom, just the bottom of scale (112) with the bottom surface contact of casing (12) inner chamber down.

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