CN209963922U - Tool for pressing rotor crankshaft into bearing seat - Google Patents

Abstract

The utility model provides a frock for inciting somebody to action rotor crankshaft bearing frame of impressing, include: the positioning seat is internally provided with an inner cavity for accommodating the guide pillar and the positioning core; the upper end of the positioning core is provided with an eccentric hole for accommodating an eccentric round table at the end part of the rotor crankshaft, the lower end of the positioning core is provided with a first through hole and a second through hole which are concentric, and the diameter of the second through hole is larger than that of the first through hole; the guide post is arranged below the positioning core, the diameter of the guide post is smaller than or equal to that of the first through hole, and a first spring is arranged on the outer side of the guide post and used for supporting the positioning core. Compared with the prior art, the beneficial effects of the utility model reside in that, the utility model provides a frock for inciting somebody to action rotor crankshaft bearing frame carries out quick location to rotor crankshaft through location core and guide pillar cooperation for rotor crankshaft can accurately impress in the bearing frame, and the assembly is accomplished the back, can directly take out assembly body from the positioning seat, has saved manpower and time.

Description

Tool for pressing rotor crankshaft into bearing seat

Technical Field

The utility model relates to a frock clamp technical field particularly, relates to a frock for impressing rotor crankshaft bearing frame.

Background

The rotary compressor comprises various forms such as a rolling rotor type, a vortex type, a vane type and the like, and mainly comprises a motor and a pump body, wherein a rotor iron core of the motor is in interference fit with a long shaft part of a crankshaft of the pump body. The diameter of the long shaft part of the crankshaft is consistent in most crankshafts because the diameter of the rear part of the long shaft part of the crankshaft is not smaller than that of the front part of the crankshaft to meet the assembly requirement of the crankshaft and a flange (also called a bearing seat). And because the stator and the rotor core have strict requirements on assembly, the rotor core is required to be as high as the stator core in the axial direction, or the rotor core is slightly higher than the stator core. However, on the premise that the diameters of the long shafts of the crankshafts are consistent, necessary tools are required to ensure the assembly height.

Chinese patent publication No.: CN201090406Y discloses a compressor rotor crankshaft mounting jig, which comprises a base, a pressure head and a guide post, wherein the base is provided with an inner cavity capable of containing and positioning a rotor core, the bottom wall of the base is provided with a through hole for a straight rod section of a rotor core shaft to pass through, the pressure head is provided with a containing cavity corresponding to the shape of the crankshaft section of the rotor core shaft and capable of positioning the crankshaft section, and the base is provided with the guide post capable of guiding the pressure head to move along the axial direction of the rotor core shaft. The pressure lever of the press machine is pressurized to the crankshaft section through the additionally arranged pressure head, the straight lever section of the mandrel is stably pressed into the iron core under the guide of the guide post, the phenomenon that the mandrel deflects due to the fact that the stress of the mandrel is uneven when the pressure lever is directly pressed to the crankshaft section is avoided, and the rotor iron core is well protected.

However, in the above technical scheme, after the assembly is completed, the assembled rotor crankshaft and the assembled bearing seat can be taken out of the positioning plate after the pressure head is taken down from the guide post, a large amount of time and labor are wasted in the process, and cost control is not facilitated.

In view of the above-mentioned drawbacks, the present inventors have made active research and innovation to create a tool for pressing a rotor crankshaft into a bearing seat, so as to make the tool more practical.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a frock for inciting somebody to action rotor crankshaft bearing frame impresses aims at solving prior art, and rotor crankshaft takes out the technical problem that wastes time and energy from the frock after impressing the bearing frame.

The utility model provides a frock for inciting somebody to action rotor crankshaft bearing frame of impressing, include: a positioning seat, a guide pillar and a positioning core;

an inner cavity for accommodating the guide pillar and the positioning core is arranged in the positioning seat;

the upper end of the positioning core is provided with an eccentric hole for accommodating an eccentric round table at the end part of the rotor crankshaft, the lower end of the positioning core is provided with a first through hole and a second through hole which are concentric, and the diameter of the second through hole is larger than that of the first through hole;

the guide post is arranged below the positioning core, the diameter of the guide post is smaller than or equal to that of the first through hole, and a first spring is arranged on the outer side of the positioning core and used for supporting the positioning core.

Further, the diameter of the first spring is larger than that of the first through hole and smaller than that of the second through hole.

Furthermore, a guide part is arranged on the guide post, and the guide part is in clearance fit with the inner cavity and used for guiding.

Further, the first spring is disposed above the guide portion.

Furthermore, a second spring is arranged below the guide part, and the second spring is sleeved on the guide pillar and used for resetting the guide pillar.

Furthermore, a guide hole is formed below the positioning seat, and the diameter of the guide hole is larger than or equal to that of the guide pillar and used for limiting and guiding.

Furthermore, the bearing seat further comprises a positioning head which is fixedly connected above the positioning seat and used for bearing the bearing seat.

Furthermore, the positioning head is fixedly connected with the positioning seat through a first screw.

Furthermore, the positioning device also comprises a bottom plate, wherein the bottom plate is fixedly connected below the positioning seat and is used for being connected with the workbench.

Furthermore, the bottom plate is fixedly connected with the positioning seat through a second screw.

Compared with the prior art, the beneficial effects of the utility model reside in that, the utility model provides a frock for inciting somebody to action rotor crankshaft bearing frame carries out quick location to rotor crankshaft through location core and guide pillar cooperation for rotor crankshaft can accurately impress in the bearing frame, and the assembly is accomplished the back, can directly take out assembly body from the positioning seat, has saved manpower and time.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic overall structure diagram of a tool for pressing a rotor crankshaft into a bearing seat according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a tool for pressing a rotor crankshaft into a bearing seat according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a positioning core provided in an embodiment of the present invention;

fig. 4 is a cross-sectional view of the guide pillar provided in the embodiment of the present invention;

fig. 5 is a cross-sectional view of the positioning seat provided in the embodiment of the present invention;

reference numerals: 1. positioning seats; 11. positioning the head; 111. a first screw; 12. a base plate; 121. a second screw; 13. an inner cavity; 14. a guide hole; 2. a guide post; 21. a first spring; 22. a guide portion; 23. a second spring; 3. a positioning core; 31. an eccentric hole; 32. a first through hole; 33. and a second via hole; 4. a rotor crankshaft; 5. and a bearing seat.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. In the description of the present invention, it should be noted that the orientations and positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 5, it can be known from the drawings that the embodiment of the present invention provides a tool for pressing a rotor crankshaft into a bearing seat, including: positioning seat 1, guide pillar 2, location core 3, wherein, be provided with the inner chamber 13 that holds guide pillar 2 and location core 3 in the positioning seat 1, location core 3 upper end is provided with eccentric orfice 31, be used for holding the eccentric round platform of 4 tip of rotor crankshaft, the lower extreme is provided with concentric first through-hole 32 and second through-hole 33, and the diameter of second through-hole 33 is greater than the diameter of first through-hole 32, guide pillar 2 sets up in location core 3 below, the diameter less than or equal to the diameter of first through-hole 32 of guide pillar 2, the outside of guide pillar 2 is provided with first spring 21, be used for supporting location core 3. Compared with the prior art, the utility model discloses a location core 3 and the cooperation of guide pillar 2, fix a position rotor bent axle 4 fast for rotor bent axle 4 can be accurate impress in bearing frame 5, and the assembly is accomplished the back, can directly take out the assembly body from positioning seat 1, has saved manpower and time.

In the present embodiment, the diameter of the first spring 21 is larger than the diameter of the first through hole 32 and smaller than the diameter of the second through hole 33. The first spring 21 is provided to enable the positioning core 3 to be quickly restored after being pressed, so that the assembly of the next set of rotor crankshafts 4 with the bearing housing 5 can be quickly started.

In this embodiment, the guide post 2 is provided with the guide portion 22, and the guide portion 22 is in clearance fit with the inner cavity 13 for guiding, and small clearance fit can be adopted during specific implementation, so that the rotor crankshaft 4 cannot deviate when being pressed into the bearing seat 5.

In this embodiment, the first spring 21 is disposed above the guide portion 22, the second spring 23 is disposed below the guide portion 22, the second spring 23 is sleeved on the guide post 2 for resetting the guide post 2 after being pressed down, and the assembly of the next set of rotor crankshafts 4 and the bearing seat 5 can be started rapidly by the automatic resetting of the second spring 23.

As a preferred embodiment, in order to further prevent the rotor crankshaft 4 from being misplaced in the pressing process, a guide hole 14 is arranged below the positioning seat 1, and the diameter of the guide hole 14 is larger than or equal to that of the guide pillar 2, so that the guide is limited and guided, and the vertical state of the guide pillar 2 is ensured.

As a preferred embodiment, the positioning device further includes a positioning head 11, the positioning head 11 is fixedly connected above the positioning seat 1 for bearing the bearing seat 5, in the specific implementation, the upper surface of the positioning head 11 is matched with the bearing seat 5, and is fixedly connected with the positioning seat 1 through a first screw 111.

As a preferred embodiment, the positioning device further comprises a bottom plate 12, the bottom plate 12 is fixedly connected below the positioning seat 1 for connecting with the workbench, and the bottom plate 12 is fixedly connected with the positioning seat 1 through a second screw 121.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. The utility model provides a frock for inciting somebody to action rotor crankshaft pressfitting bearing frame which characterized in that includes: the positioning seat (1), the guide post (2) and the positioning core (3);

an inner cavity (13) for accommodating the guide pillar (2) and the positioning core (3) is arranged in the positioning seat (1);

the upper end of the positioning core (3) is provided with an eccentric hole (31) for accommodating an eccentric round table at the end part of the rotor crankshaft (4), the lower end of the positioning core is provided with a first through hole (32) and a second through hole (33) which are concentric, and the diameter of the second through hole (33) is larger than that of the first through hole (32);

the guide post (2) is arranged below the positioning core (3), the diameter of the guide post (2) is smaller than or equal to that of the first through hole (32), and a first spring (21) is arranged on the outer side of the guide post (2) and used for supporting the positioning core (3).

2. Tool for pressing a rotor crankshaft into a bearing housing according to claim 1, characterized in that the diameter of the first spring (21) is greater than the diameter of the first through hole (32) and smaller than the diameter of the second through hole (33).

3. Tool for pressing a rotor crankshaft into a bearing housing according to claim 2, characterised in that a guide (22) is provided on the guide post (2), which guide (22) is a clearance fit with the inner cavity (13) for guiding.

4. A tool for pressing a rotor crankshaft into a bearing housing according to claim 3, characterized in that the first spring (21) is arranged above the guide (22).

5. The tooling for pressing the rotor crankshaft into the bearing seat according to claim 4, characterized in that a second spring (23) is arranged below the guide part (22), and the second spring (23) is sleeved on the guide post (2) for resetting the guide post (2).

6. The tooling for pressing the rotor crankshaft into the bearing seat according to the claim 4 is characterized in that a guide hole (14) is arranged below the positioning seat (1), and the diameter of the guide hole (14) is larger than or equal to that of the guide pillar (2) for limiting the guide.

7. The tooling for pressing the rotor crankshaft into the bearing seat according to claim 1, further comprising a positioning head (11), wherein the positioning head (11) is fixedly connected above the positioning seat (1) for bearing the bearing seat (5).

8. The tooling for pressing the rotor crankshaft into the bearing seat according to claim 7, wherein the positioning head (11) is fixedly connected with the positioning seat (1) through a first screw (111).

9. The tooling for pressing the rotor crankshaft into the bearing seat according to claim 1, further comprising a bottom plate (12), wherein the bottom plate (12) is fixedly connected below the positioning seat (1) and is used for being connected with a workbench.

10. The tooling for pressing the rotor crankshaft into the bearing seat according to claim 9, wherein the bottom plate (12) is fixedly connected with the positioning seat (1) through a second screw (121).

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