CN216490093U

CN216490093U - Driving structure of hydraulic pipe fitting machining tool

Info

Publication number: CN216490093U
Application number: CN202121712578.1U
Authority: CN
Inventors: 蒋友荣
Original assignee: Zhejiang Value Mechanical & Electrical Products Co ltd
Current assignee: Zhejiang Value Mechanical & Electrical Products Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-05-10
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a pipe fitting machining tool, which provides a driving structure of a hydraulic pipe fitting machining tool with simple, compact and reasonable structure, high transmission efficiency and stable and reliable operation, and solves the technical problems of complicated driving structure, low transmission efficiency, large overall volume caused by an installation mode, inconvenient operation and the like of the pipe fitting machining tool in the prior art.

Description

Driving structure of hydraulic pipe fitting machining tool

Technical Field

The utility model relates to a pipe fitting machining tool, in particular to a driving structure of a hydraulic pipe fitting machining tool, which is simple, compact and reasonable in structure, high in transmission efficiency and stable and reliable in operation.

Background

The existing driving structure of the hydraulic pipe fitting processing tool generally adopts a planetary gear speed reducing mechanism or a roller friction planetary speed reducing mechanism, wherein the planetary gear speed reducing mechanism has a complex structure, is not convenient to manufacture and install and is inconvenient to disassemble, the part processing precision requirement in the roller friction planetary speed reducing mechanism is high, the heat productivity in the working process is large, the transmission efficiency is low, and the two structures are coaxially installed with a motor, so that the whole electric hydraulic tool is too large or too long and is inconvenient to operate and use.

Disclosure of Invention

The utility model mainly provides a driving structure of a hydraulic pipe fitting machining tool, which has the advantages of simple, compact and reasonable structure, high transmission efficiency and stable and reliable operation, and solves the technical problems of complicated driving structure, low transmission efficiency, large whole machine volume caused by an installation mode, inconvenience in operation and use and the like of the pipe fitting machining tool in the prior art.

The technical problem of the utility model is mainly solved by the following technical scheme: the utility model provides a drive structure of hydraulic pipe spare machining tool, includes the working chamber on the body, and the medial extremity of plunger is pegging graft in the sliding of working chamber, be equipped with worm wheel and the worm of mutually supporting on the body that the outside end corresponds, wherein the output of driving motor is being connected to the worm, is equipped with the eccentric wheel in the pivot of worm wheel, and the eccentric wheel mutually supports with the outside end of plunger and drives the plunger and slide to the working chamber. The motor drives the worm, the worm drives the worm wheel, the worm wheel drives the eccentric wheel of coaxial setting to rotate (the worm wheel also can be replaced with helical gear), the eccentric wheel is mutually supported with the outside end of plunger, both mutually support the connected mode and can be through multiple connected modes such as outer annular butt, interior annular sliding connection, and keep rotating through the pivot and connect, the convex surface of eccentric wheel promotes the plunger and slides to realize feeding in the working chamber, when the convex surface of eccentric wheel is outside, the plunger outwards slides and resets, moreover, the steam generator is simple in structure, the plunger and the motor output shaft are alternately arranged, the space structure is compact and reasonable, the transmission efficiency is high, the operation is stable and reliable.

Preferably, the outer circumferential surface of the eccentric abuts against the outer end of the plunger. The outer ring surface of the eccentric wheel is abutted to the end surface of the plunger, and when the eccentric wheel rotates, the plunger is arranged on the top of the convex surface of the eccentric wheel to realize feeding inwards, so that the structure is simple.

More preferably, the plunger is fitted with a compression return spring. The plunger keeps attaching to the bearing all the time through compressing the reset spring, thereby realizing oil absorption by utilizing the reset of the spring.

Preferably, the outer side end of the plunger is provided with a sliding rail ring, and the eccentric wheel is connected to the inner annular surface of the sliding rail ring in a sliding manner. The eccentric wheel is inserted in a slide rail ring at the outer side end of the plunger, and the plunger is driven to reciprocate by the mutual matching of the eccentric wheel and the inner ring surface of the slide rail ring.

Preferably, a balance weight is arranged on the rotating shaft close to the eccentric wheel. The eccentric wheel structure is because the focus is unbalanced, and centrifugal force can lead to periodic vibrations and noise during operation, and through suit balancing piece on the transmission shaft, the balancing piece can set up one or more for the centrifugal force that partial balance or full balance eccentric wheel lead to improves the operation stationarity, reduces vibrations and noise.

Preferably, a bearing is sleeved outside the eccentric wheel in a matching manner. The eccentric wheel is sleeved with the bearing, the plunger pump oil is driven through the bearing, the abrasion of the plunger and the eccentric wheel is reduced, meanwhile, the friction resistance is reduced, and the energy consumption is saved.

Preferably, the radial center plane of the eccentric passes through the axial center line of the plunger. When the radial bisector of the eccentric wheel passes through the axial lead of the plunger, the force application direction of the eccentric wheel is consistent with the sliding direction of the plunger.

Therefore, the driving structure of the hydraulic pipe machining tool of the present invention has the following advantages:

1. the structure is simple, the space structure is compact and reasonable, the transmission efficiency is high, and the operation is stable and reliable;

2. the eccentric wheel is sleeved with the bearing, so that the abrasion of the plunger and the eccentric wheel can be reduced, the friction resistance can be reduced, and the energy consumption is saved;

3. the balance block is sleeved on the transmission shaft to balance the centrifugal force of the eccentric wheel, so that the running stability is improved, and the vibration and noise are reduced.

Description of the drawings:

FIG. 1 is a schematic structural view of a first embodiment of the present invention;

FIG. 2 is a schematic structural view of a second embodiment of the present invention;

fig. 3 is a partial schematic view of the structure shown in fig. 2.

The specific implementation mode is as follows:

the technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

Example 1:

as shown in figure 1, the driving structure of the hydraulic pipe fitting processing tool of the utility model comprises a body 1 of the pipe fitting processing tool and a working chamber 2 on the body 1, wherein the inner side end of a plunger 3 is inserted in the working chamber 2 in a sliding way, the outer side end of the plunger 3 extends out of the working chamber 2, a compression return spring 8 is sleeved outside the plunger 3, the inner side end of the compression return spring 8 is abutted on a corresponding annular step in the working chamber 2, the outer side end is abutted on the turning edge of the outer side end of the plunger 3, a worm gear assembly is arranged on the body 1 corresponding to the outer side end of the plunger 3, a worm 42 in the worm gear assembly is connected with the output end of a driving motor, an eccentric wheel 5 is sleeved and fixed on a rotating shaft 43 of a worm wheel 41, a bearing 7 is mutually sleeved and arranged on the outer annular surface of the eccentric wheel 5, an annular balance weight 6 is connected on the rotating shaft 43 close to the eccentric wheel 5 in a key way, and the balance weight 6 is positioned between the worm wheel 41 and the eccentric wheel 5, a bearing 7 on the outer circumferential surface of the eccentric wheel 5 abuts on the outer end of the plunger 3, and the radial bisector of the bearing 7 and the eccentric wheel 5 passes through the axial lead of the plunger 3.

Example 2:

as shown in fig. 2 and fig. 3, the outer end of the plunger 3 is provided with an oval sliding rail ring 31, the sliding rail ring 31 is coplanar with the plunger 3, the long axis of the sliding rail ring 31 is perpendicular to the plunger 3, and the eccentric wheel 5 is inserted into the central hole of the sliding rail ring 31 and keeps sliding connection with the inner annular surface thereof. The rest is exactly the same as in example 1.

The specific embodiments described herein are merely illustrative of the principles of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides a drive structure of hydraulic pressure pipe fitting machining tool, includes working chamber (2) on body (1), and the medial extremity that is pegging graft plunger (3) slides in working chamber (2), its characterized in that: the plunger piston is characterized in that a worm wheel (41) and a worm (42) which are matched with each other are arranged on the body (1) corresponding to the outer side end of the plunger piston (3), the worm (42) is connected with the output end of a driving motor, an eccentric wheel (5) is arranged on a rotating shaft (43) of the worm wheel (41), and the eccentric wheel (5) is matched with the outer side end of the plunger piston (3) and drives the plunger piston (3) to slide in the working cavity (2).

2. The drive structure of a hydraulic pipe machining tool according to claim 1, characterized in that: the outer ring surface of the eccentric wheel (5) is abutted against the outer side end of the plunger (3).

3. The drive structure of a hydraulic pipe machining tool according to claim 2, characterized in that: the plunger (3) is sleeved with a compression return spring (8).

4. The drive structure of a hydraulic pipe machining tool according to claim 1, characterized in that: the outer side end of the plunger (3) is provided with a sliding rail ring (31), and the eccentric wheel (5) is connected to the inner ring surface of the sliding rail ring (31) in a sliding manner.

5. The drive structure of a hydraulic pipe machining tool according to claim 1, characterized in that: a balance weight (6) is arranged on the rotating shaft (43) close to the eccentric wheel (5).

6. The drive structure of a hydraulic pipe machining tool according to claim 1, characterized in that: and a bearing (7) is sleeved outside the eccentric wheel (5) in a matching way.

7. The drive structure of a hydraulic pipe machining tool according to claim 1, characterized in that: the radial middle section of the eccentric wheel (5) passes through the axial lead of the plunger (3).