CN216665904U

CN216665904U - Gear pump convenient to change gear

Info

Publication number: CN216665904U
Application number: CN202121373013.5U
Authority: CN
Inventors: 张维
Original assignee: Suzhou Sufan Precision Machinery Co ltd
Current assignee: Suzhou Sufan Precision Machinery Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-06-03
Anticipated expiration: 2031-06-21

Abstract

The application provides a gear pump convenient to change gear, including the pump body, the axis of rotation is installed in the rotation of pump body left side, and axis of rotation outside joint coaxial arrangement has the gear, and pump body upper end is provided with the water pipe, and axis of rotation outside middle part is provided with the screw hole, rotates through the screw hole and installs spacing bolt. The spring fixing device guides the movement of the spring through the guide sliding chute, the limiting rods are driven by the spring to slide towards the inner side in the mounting groove, the mounting rods are mounted in the rotating shaft, the limiting rods on the upper side and the lower side are extruded out through the conical structural design of the right end of the conical block, so that the limiting fixing of the gear on the outer side of the rotating shaft is realized, when the gear needs to be dismounted, the mounting rods are screwed out in the rotating shaft, the spring provides inward pulling force, the two groups of limiting rods slide along the mounting groove, the fixing of the gear outside the rotating shaft is removed, the mounting and dismounting are quick and convenient, and the practicability is strong.

Description

Gear pump convenient to change gear

Technical Field

The utility model relates to the field of gear pumps, in particular to a gear pump convenient for replacing gears.

Background

Gear pumps are rotary pumps that deliver or pressurize fluid by virtue of the change in working volume and movement created between a pump cylinder and a meshing gear. Two gears, pump body and front and back covers form two closed spaces, when the gears rotate, the space on the gear disengagement side becomes larger from smaller to larger to form vacuum to suck liquid, and the space on the gear engagement side becomes smaller from larger to smaller to squeeze liquid into the pipeline. The suction chamber and the discharge chamber are separated by a meshing line of two gears. The pressure at the discharge of the gear pump is entirely dependent on the amount of resistance at the pump outlet.

The gear pump needs to replace the gear regularly, but the existing gear is inconvenient to fix and disassemble, and therefore, the gear pump convenient for replacing the gear is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a gear pump convenient for replacing gears, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a gear pump for facilitating gear change comprising: the pump body, the pump body is the gear pump and relies on the pump cylinder and the rotary pump that the displacement that forms changes and removes between the meshing gear and carry liquid or make it pressure boost, the axis of rotation is installed in the rotation of pump body left side, axis of rotation outside joint coaxial arrangement has the gear, is connected with external gear through the gear, the pump body upper end is provided with the water pipe, comes to exchange the rivers of importing and exporting through the water pipe,

the middle part of the outer side of the rotating shaft is provided with a threaded hole, the limiting bolt is installed through the threaded hole in a rotating mode, and the limiting bolt is used for limiting the installation position of the gear on the inner side of the rotating shaft, so that the gear can be installed accurately and well.

Preferably, the gear left side is provided with the screw hole, rotates through left screw hole and installs the installation pole, the installation pole right-hand member is provided with the toper piece, the toper piece is the bellied toper piece in right side.

Preferably, the rotating shaft and the gear are both internally provided with mounting grooves, and limiting rods are slidably mounted in the mounting grooves.

Preferably, the middle part of the limiting rod is fixedly provided with a connecting rod through a bolt, the middle part of the rotating shaft is provided with a guide sliding groove, and the guide sliding groove is two groups of round pipes which slide mutually.

Preferably, the installation grooves and the limiting rods are symmetrically distributed around the middle of the rotating shaft.

Preferably, both ends fixed mounting has the spring about the direction spout middle part, the spring is in tensile state all the time, provides the pulling force to the inboard.

Compared with the prior art, the utility model has the following beneficial effects:

come to lead for the removal of spring through the direction spout, it slides to the inboard at the mounting groove to drive the gag lever post through the spring, let the installation of installation pole in the axis of rotation, toper structural design through the toper piece right-hand member, the gag lever post of both sides is extruded from top to bottom, thereby realize the spacing fixed in the axis of rotation outside the gear, when needing to dismantle, will install the pole and outwards screw out in the axis of rotation, provide the pulling force to the inboard through the spring, slide two sets of gag lever posts along the mounting groove, thereby it is fixed outside the axis of rotation to remove the gear, the installation is dismantled swiftly conveniently, extremely strong practicality has.

Drawings

FIG. 1 is an overall block diagram of a gear pump for easy gear replacement according to the present invention;

fig. 2 is a view showing the construction of a rotary shaft and gears in a gear pump for easy gear replacement according to the present invention.

In the figure: 1. a pump body; 2. a rotating shaft; 3. a gear; 4. a water pipe; 5. a limit bolt; 6. Mounting a rod; 7. mounting grooves; 8. a limiting rod; 9. a conical block; 10. a connecting rod; 11. a spring; 12. a guide chute.

Detailed Description

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

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1, a gear pump for facilitating gear replacement includes: the pump body 1, the pump body 1 is a rotary pump which depends on the working volume change and the movement formed between a pump cylinder and a meshing gear to convey liquid or pressurize the liquid, the left side of the pump body 1 is rotatably provided with a rotating shaft 2, the outer side of the rotating shaft 2 is clamped and coaxially provided with a gear 3, the gear 3 is connected with an external gear, the upper end of the pump body 1 is provided with a water pipe 4, and the water pipe 4 is used for exchanging water flow of an inlet and an outlet,

as shown in fig. 2, a threaded hole is formed in the middle of the outer side of the rotating shaft 2, a limiting bolt 5 is rotatably installed through the threaded hole, the gear 3 is limited at the installation position on the inner side of the rotating shaft 2 through the limiting bolt 5, so that the gear 3 is better and accurately installed, a threaded hole is formed in the left side of the gear 3, an installation rod 6 is rotatably installed through the threaded hole in the left side, a tapered block 9 is arranged at the right end of the installation rod 6, the tapered block 9 is a tapered block protruding from the right side, installation grooves 7 are formed in the rotating shaft 2 and the gear 3, a limiting rod 8 is slidably installed in the installation grooves 7, the distribution of the installation grooves 7 and the limiting rod 8 is symmetrically distributed in the middle of the rotating shaft 2, subsequent descriptions are provided by taking the example of the lower side, a connecting rod 10 is fixedly installed in the middle of the limiting rod 8 through a bolt, a guide chute 12 is formed in the middle of the rotating shaft 2, the guide chute 12 is composed of two groups of round pipes which slide with each other, springs 11 are fixedly arranged at the upper end and the lower end of the middle part of the guide chute 12, the springs 11 are always in a stretching state to provide tension to the inner side, the movement of the spring 11 is guided by the guide sliding chute 12, the limiting rod 8 is driven by the spring 11 to slide inwards in the mounting groove 7, the mounting rod 6 is mounted in the rotating shaft 2, the limiting rods 8 on the upper side and the lower side are extruded out through the conical structure design at the right end of the conical block 9, thereby realizing the limit fixation of the gear 3 at the outer side of the rotating shaft 2, and when the disassembly is needed, the mounting rod 6 is screwed out in the rotating shaft 2, the two groups of limiting rods 8 slide along the mounting groove 7 by providing inward pull force through the spring 11, thereby the gear 3 is removed from the fixing outside the rotating shaft 2, the installation and the disassembly are rapid and convenient, and the practicability is strong.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a gear pump convenient to change gear, includes the pump body (1), its characterized in that: the left side of the pump body (1) is rotatably provided with a rotating shaft (2), the outer side of the rotating shaft (2) is clamped and coaxially provided with a gear (3) and is connected with an external gear through the gear (3), the upper end of the pump body (1) is provided with a water pipe (4), water flow of an inlet and an outlet is exchanged through the water pipe (4),

the middle part of the outer side of the rotating shaft (2) is provided with a threaded hole, the limiting bolt (5) is installed through the threaded hole in a rotating mode, the gear (3) is limited at the installation position of the inner side of the rotating shaft (2) through the limiting bolt (5), and therefore the gear (3) can be installed accurately.

2. A gear pump for facilitating gear change according to claim 1, wherein: gear (3) left side is provided with the screw hole, rotates through left screw hole and installs installation pole (6), installation pole (6) right-hand member is provided with toper piece (9), toper piece (9) are the bellied toper piece in right side.

3. A gear pump for facilitating gear change according to claim 2, wherein: the gear transmission mechanism is characterized in that mounting grooves (7) are formed in the rotating shaft (2) and the gear (3), and limiting rods (8) are arranged in the mounting grooves (7) in a sliding mode.

4. A gear pump for facilitating gear change according to claim 3, wherein: the utility model discloses a spacing pole, including axis of rotation (2), gag lever post (8) middle part is provided with connecting rod (10) through bolt fixed mounting, axis of rotation (2) middle part is provided with direction spout (12), direction spout (12) are two sets of mutual gliding pipes.

5. A gear pump for facilitating gear change according to claim 3, wherein: the mounting grooves (7) and the limiting rods (8) are symmetrically distributed around the middle of the rotating shaft (2).

6. A gear pump for facilitating gear change according to claim 4, wherein: both ends fixed mounting has spring (11) about direction spout (12) middle part, spring (11) are in tensile state all the time, provide the pulling force to the inboard.