CN216950746U

CN216950746U - Oil-free air compressor crankshaft

Info

Publication number: CN216950746U
Application number: CN202123423009.8U
Authority: CN
Inventors: 陆春益
Original assignee: Shanghai Nazhen Machinery Co ltd
Current assignee: Shanghai Nazhen Machinery Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-12
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses an oil-free air compressor crankshaft, which belongs to the technical field of compressor crankshafts and comprises an input shaft, wherein a first self-aligning ball bearing is sleeved on the outer wall of the top end of the input shaft, a hexagonal flange face bolt used for limiting installation is further arranged at a corresponding position of the first self-aligning ball bearing, a gasket is arranged at the top end part of the hexagonal flange face bolt, an inner hexagonal flange face bolt is arranged at one end of the gasket, a first double crank shaft is arranged below the inner hexagonal flange face bolt, and an outer bearing seat is sleeved outside the first double crank shaft. According to the sectional type crankshaft main body structure, the original sectional type crankshaft main body structure is designed into an integral structure (the second double crank shaft and the first double crank shaft form a solid main shaft), the balance of the main body structure is improved, the sectional type crankshaft main body structure is more stable and balanced than the original sectional type crankshaft main body structure, the size is accurate, the loss of the main body structure is reduced, and the unnecessary installation loss of a casting assembled with the sectional type crankshaft main body structure is avoided.

Description

Oil-free air compressor crankshaft

Technical Field

The utility model relates to the technical field of compressor crankshafts, in particular to an oil-free air compressor crankshaft.

Background

The crankshaft is the most important component in the engine. It takes the force from the connecting rod and converts it into torque to be output by the crankshaft and drive other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, gas inertia force of periodic variation and reciprocating inertia force, so that the crankshaft is subjected to the action of bending and torsion loads. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the surface of the journal needs to be wear-resistant, work uniformly and balance well.

The crankshaft at the present stage is inconvenient for mutual installation among the rollers when in use, a sectional structure is adopted during operation, loss in the aspect of mechanical driving can be caused by the operation state, the center-of-gravity rotation efficiency is poor, the driving efficiency in the rotation process cannot be improved, the driving efficiency can be reduced due to structural limitation of the driving end of the existing crankshaft, the structural driving abrasion is large, and therefore the structure of the crankshaft needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and designs an oil-free air compressor crankshaft.

The technical scheme of the utility model is that the oil-free air compressor crankshaft comprises an input shaft, wherein a first self-aligning ball bearing is sleeved on the outer wall of the top end of the input shaft, a hexagonal flange face bolt used for limiting installation is further arranged at a corresponding position of the first self-aligning ball bearing, a gasket is arranged at the top end part of the hexagonal flange face bolt, an inner hexagonal flange face bolt is arranged at one end of the gasket, a first double-crank shaft is arranged below the inner hexagonal flange face bolt, an outer bearing seat is sleeved outside the first double-crank shaft, and a plurality of inner hexagonal flange face bolts are sequentially arranged on the outer wall of the surface layer of the outer bearing seat.

As a further supplement of the utility model, one end of the outer bearing seat is also connected with a check ring, the back of the check ring is clamped with a circular slide block, and the middle part of the circular slide block is connected with the first double crank shaft in an inserting way.

As a further supplement of the utility model, the middle part of the circular sliding block is hollow, wherein one end of the outer bearing seat is inserted and connected with the middle part of the circular sliding block, and the middle part of the circular sliding block is fixedly sleeved with the outer wall of the first double crank shaft.

As a further supplement of the utility model, a first deep groove ball bearing is further sleeved at a position connected with the rear part of the circular sliding block, the middle part of the first deep groove ball bearing is connected with the edge position of the first double crank shaft in a penetrating manner, an inner bearing seat is further arranged on one end surface of the first double crank shaft, a solid shaft is arranged at one end of the inner bearing seat, and a plurality of connecting grooves are symmetrically arranged on the end surface of the solid shaft.

As a further supplement of the utility model, hexagon bolts are symmetrically installed inside the plurality of connecting slots, a second deep groove ball bearing is further sleeved at one end of the inner hexagon bolt corresponding to two sides, a second double crank shaft is further transversely installed in the middle of the bottom end of the second deep groove ball bearing, and a rotating bolt is transversely installed in the middle of the end head of the second double crank shaft.

As a further supplement of the utility model, circular fastening through holes are symmetrically formed on two sides of the top of the second double-crank shaft, cylindrical pins are transversely installed in the circular fastening through holes, and second self-aligning ball bearings are correspondingly arranged between the cylindrical pins on two sides.

As a further supplement to the present invention, one end of the second self-aligning ball bearing is provided with a tapered output shaft, wherein one end of the output shaft is in hinged driving connection with the corresponding input shaft.

As a further supplement of the present invention, the second double crank axle and the first double crank axle are symmetrically arranged, and the second double crank axle, the first double crank axle and the solid axle are integrally connected.

The beneficial effects are that:

(1) according to the utility model, the input shaft and the self-aligning ball bearing are arranged, so that the angular deflection driving is conveniently realized when the input shaft rotates, the self-aligning ball bearing is adjusted to drive the double turning shafts to adjust the angle in a screw connection mode, and the second deep groove ball bearing at one end can correspondingly rotate when the second deep groove ball bearing drives the solid shaft to drive, so that the driving adjustment of later personnel is ensured;

(2) the inner bearing seat and the deep groove ball bearing are arranged to establish a connection relation between the input shaft at the front end and the output at the rear end, the loss is reduced, the efficiency is improved, the noise is reduced, the balance in the operation process of the crankshaft is improved, the friction is reduced, the movement efficiency and energy conservation are ensured, the original sectional type crankshaft body structure (the second double-turning shaft and the first double-turning shaft form a solid main shaft) is combined into an integral structure, the balance of the body structure is improved, the more stable balance of the original sectional type structure assembly is better, the size is accurate, the loss on the body structure is reduced, and the unnecessary installation loss of a casting assembled with the sectional type crankshaft body structure is avoided.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

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

fig. 3 is a schematic structural diagram of another view angle of the present invention.

In the figure, 1, an input shaft; 2. a first self-aligning ball bearing; 3. hexagonal flange face bolts; 4. a gasket; 5. bolts with inner hexagonal flange faces; 6. a first double crank axle; 7. an outer bearing seat; 8. a retainer ring; 9. a circular slider; 10. a first deep groove ball bearing; 11. an inner bearing seat; 111. a solid shaft; 112. connecting and slotting; 12. a hexagon bolt; 13. a second deep groove ball bearing; 131. a second double throw shaft; 132. rotating the bolt; 14. a cylindrical pin; 141. a second self-aligning ball bearing; 15. and an output shaft.

Detailed Description

Firstly, the design of the utility model is designed for the purpose that the crankshaft at the present stage is inconvenient for mutual installation of all rolling shafts when in use, and adopts a sectional structure during operation, so that the operating state can cause loss in the aspect of mechanical driving, the rotating efficiency of the center of gravity is poor, and the driving efficiency in the rotating process cannot be improved.

The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1-3, the oil-free air compressor crankshaft mainly comprises an input shaft 1, wherein a first self-aligning ball bearing 2 is sleeved on the outer wall of the top end of the input shaft 1, and a hexagonal flange face bolt 3 for limited installation is further arranged at a corresponding position of the first self-aligning ball bearing 2; in order to enhance the fastening property of the hexagon flange face bolt 3, a washer 4 is provided at the tip end portion of the hexagon flange face bolt 3, and an inner hexagon flange face bolt 5 is provided at one end of the washer 4.

Install a first pair turning axle 6 in the below that is located hexagon socket head cap flange face bolt 5, wherein the outside of this first pair turning axle 6 is cup jointed and is equipped with outer bearing frame 7, a plurality of hexagon socket head cap flange face bolt 5 lays in proper order on the top layer outer wall of outer bearing frame 7, wherein the one end that is located outer bearing frame 7 still is connected with retaining ring 8, the back clamp of retaining ring 8 is tightly equipped with circle slider 9, it is connected to alternate between the middle part of circle slider 9 and the first pair turning axle 6, through retaining ring 8 that is equipped with, circle slider 9 and first pair turning axle 6, outer bearing frame 7 of convenient drive one end drives rotatoryly.

The middle part that is located circular slider 9 is hollow, wherein the one end of outer bearing frame 7 and the middle part of circular slider 9 alternate and be connected, cup joint between the middle part of circular slider 9 and the outer wall of first pair of turning 6 and fix, through outer bearing frame 7 and first pair of turning 6 that are equipped with, conveniently drive circular slider 9 and do corresponding rotation regulation, and wherein still cup joint first deep groove ball bearing 10 with the department of meeting of circular slider 9 rear, the border position that is located the middle part of first deep groove ball bearing 10 and with first pair of turning 6 alternates and is connected, the one end surface of first pair of turning 6 still overlaps and is provided with inner bearing frame 11, wherein the one end of inner bearing frame 11 is provided with solid axle 111, a plurality of connection fluting 112 has been seted up to the terminal surface position symmetry of solid axle 111, through the circular slider 9 that are equipped with and first deep groove ball bearing 10, conveniently drive the inner bearing frame 11 of one end and do the connection drive.

The hexagonal bolts 12 are symmetrically installed inside the connecting slots 112, the second deep groove ball bearing 13 is further sleeved at one end of the inner hexagonal bolt 12 corresponding to the two sides, the second double crank shaft 131 is further transversely installed in the middle of the bottom end of the second deep groove ball bearing 13, the rotating bolt 132 is transversely installed in the middle of the end of the second double crank shaft 131, and the rotating bolt 132 at one end is conveniently driven to rotate through the hexagonal bolt 12 and the second deep groove ball bearing 13; the second double crank shaft 131 and the first double crank shaft 6 are symmetrically distributed at two ends of the solid shaft 111 and are integrally connected with the solid shaft, and the prior art scheme generally adopts a sectional design, so that the design has the advantages of improving the balance of the body structure, reducing the loss of the body structure and avoiding the unnecessary installation loss of a casting assembled with the body structure; the second double crank shaft 131 and the first double crank shaft 6 are arranged to facilitate the corresponding combination and installation of the solid shaft 111; circular fastening through holes are symmetrically formed in two sides of the top of the second double crank shaft 131, cylindrical pins 14 are transversely installed in the circular fastening through holes, a second self-aligning ball bearing 141 is correspondingly arranged at one end between the cylindrical pins 14 on the two sides, and the second self-aligning ball bearing 141 is adjusted to perform hinged operation through the circular fastening through holes and the cylindrical pins 14; an output shaft 15 with a conical shape is arranged at one end of the second self-aligning ball bearing 141, wherein one end of the output shaft 15 is in hinged driving connection with the corresponding input shaft 1, and the connection is established between the driving unit and the driven unit through the arranged output shaft 15 and the input shaft 1.

When the input shaft 1 is used, one end of the input shaft 1 is connected with a driving device, the output shaft 15 at the other end of the input shaft 1 is connected with a device driven to rotate, after the input shaft 1 is connected with the driving device externally connected with the input shaft, the output end can drive the input shaft 1 to rotate in a rolling way, the input shaft 1 drives the first self-aligning ball bearing 2 in a rolling process, the first self-aligning ball bearing 2 drives the hexagonal flange face bolt 3 to rotate in a driving way, the connected circular sliding block 9 and the check ring 8 can adjust the first deep groove ball bearing 10 to correspondingly drive after being controlled to rotate, the solid shafts 111 are connected through the connection with the inner bearing seat 11, the second deep groove ball bearing 13 at one end of the solid shafts 111 can be adjusted in a rotating way to achieve angle change adjustment, the cylindrical pin 14 connected at one end of the second deep groove ball bearing 13 can be connected with the second self-aligning ball bearing 141, and the second self-aligning ball bearing 141 finally realizes angular deflection rotation after rotating with the cylindrical pin 14, and drives the output shaft 15 to make a rotating connection.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications made to some parts by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims

1. Oilless air compressor bent axle, including input shaft (1), its characterized in that, the top outer wall of input shaft (1) cup joints and is equipped with first self-aligning ball bearing (2), the corresponding position of first self-aligning ball bearing (2) still is provided with hexagon flange face bolt (3) that are used for injecing the installation, the top portion of hexagon flange face bolt (3) is provided with packing ring (4), the one end of packing ring (4) is provided with hexagon socket flange face bolt (5), and a first pair turning axle (6) is installed to the below that is located hexagon flange face bolt (5), wherein the outside of first pair turning axle (6) is cup jointed and is equipped with outer bearing seat (7), and lay on the top layer outer wall of outer bearing seat (7) in proper order in a plurality of hexagon flange face bolt (5).

2. An oil-free air compressor crankshaft as claimed in claim 1, wherein one end of the outer bearing seat (7) is further connected with a retainer ring (8), a circular slider (9) is clamped on the back of the retainer ring (8), and the middle of the circular slider (9) is connected with the first double crank shaft (6) in an inserting manner.

3. An oilless air compressor crankshaft according to claim 2, characterized in that the middle of the circular slider (9) is hollow, wherein one end of the outer bearing seat (7) is inserted into the middle of the circular slider (9), and the middle of the circular slider (9) is fixedly sleeved with the outer wall of the first double crank shaft (6).

4. An oilless air compressor crankshaft as claimed in claim 3, wherein the rear connection position of the circular slider (9) is further sleeved with a first deep groove ball bearing (10), the middle of the first deep groove ball bearing (10) is in insertion connection with the edge position of a first double crank shaft (6), an inner bearing seat (11) is further sleeved on one end surface of the first double crank shaft (6), wherein a solid shaft (111) is arranged at one end of the inner bearing seat (11), and a plurality of connection slots (112) are symmetrically formed in the end surface position of the solid shaft (111).

5. An oilless air compressor crankshaft according to claim 4, wherein hexagonal bolts (12) are symmetrically installed inside the plurality of connecting slots (112), a second deep groove ball bearing (13) is further sleeved at one end of the corresponding inner hexagonal bolt (12) on two sides, a second double crank shaft (131) is further transversely installed in the middle of the bottom end of the second deep groove ball bearing (13), and a rotating bolt (132) is transversely installed in the middle of the end head of the second double crank shaft (131).

6. An oil-free air compressor crankshaft as claimed in claim 5, wherein circular fastening through holes are symmetrically formed in both sides of the top of the second double crank shaft (131), cylindrical pins (14) are transversely installed in the circular fastening through holes, and second self-aligning ball bearings (141) are correspondingly arranged between the cylindrical pins (14) on both sides.

7. An oil-free air compressor crankshaft according to claim 6, characterized in that one end of the second self-aligning ball bearing (141) is provided with a conical output shaft (15), wherein one end of the output shaft (15) is in hinged driving connection with the corresponding input shaft (1).

8. An oilless air compressor crankshaft according to claim 7, characterized in that the second double crank shaft (131) and the first double crank shaft (6) are symmetrically arranged, and the second double crank shaft (131) and the first double crank shaft (6) are integrally connected with the solid shaft (111).