CN112610481B

CN112610481B - Stress balance's single screw air compressor machine for locomotive

Info

Publication number: CN112610481B
Application number: CN202011524396.1A
Authority: CN
Inventors: 周明剑; 何菲菲; 张翰武
Original assignee: Knorr Bremse Nankou Air Supply Unit Beijing Co ltd
Current assignee: Knorr Bremse Nankou Air Supply Unit Beijing Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2022-09-06
Anticipated expiration: 2040-12-22
Also published as: CN112610481A

Abstract

The invention relates to the technical field of air compressors and discloses a stress-balanced single-screw air compressor for a locomotive, which comprises a shell, wherein an air pressure block is fixedly connected to the middle part of an inner cavity of the shell, heat dissipation cavities are respectively formed in the upper wall and the lower wall of the air pressure block, bearing seats are respectively and fixedly arranged on the left wall and the right wall of the air pressure block, an air pressure screw rod is rotatably connected between the bearing seats, annular grooves are respectively formed in the surfaces of two sides of the air pressure screw rod, and the upper part and the lower part of the inner cavity of the air pressure block are respectively and rotatably connected with a star gear. This balanced locomotive of atress is with single screw air compressor machine rotates through the pneumatics screw rod and drives special-shaped frame reciprocating motion, and flexible ejector pin intermittent type during this for the slider drives gasbag ring and pressure bar and warp, discharges low temperature gas to in the heat dissipation chamber, thereby the effectual self-balancing state of having avoided the pneumatics piece receives high temperature influence, further strengthened the air compression between the compression part complex stability.

Description

Stress balance's single screw air compressor machine for locomotive

Technical Field

The invention relates to the technical field of air compressors, in particular to a single-screw air compressor for a locomotive with balanced stress.

Background

At present, supply single screw air compressor machine that railway locomotive used, radial and axial gas force that its screw rod bore in the normal atmospheric temperature use can automatic balance, nevertheless after the long-time operation of air compressor machine, it is inside to gather a large amount of heats, can make corresponding screw rod and star gear part thermal expansion promptly, take place the physical deformation of minizone, lead to the power increase that the air compressor part bore, certain danger appears even, in addition the lubricating oil of its junction can reduce gradually after the long-term use of air compressor part, wearing and tearing increase between the air compressor part, it can lead to the whole moving stability decline of air compressor machine promptly untimely to add lubricating oil when the user.

Aiming at the defects of the prior art, the invention provides a single screw rod type air compressor for a locomotive with balanced stress, which has the advantages of effectively avoiding the self-balancing state of an air compression piece from being influenced by high temperature, further enhancing the stability of matching between compression parts during air compression, and solving the problems that the self-balancing state of the air compression piece is easily broken by high temperature and the stability is reduced along with the consumption of lubricating oil after the air compression piece is used for a long time in the using process of the common single screw rod type air compressor for the locomotive.

Disclosure of Invention

In order to effectively avoid the influence of high temperature on the self-balancing state of the air compression part and further strengthen the stability of matching between compression parts during air compression, the invention provides the following technical scheme: a single screw air compressor for a locomotive with balanced stress comprises a shell, wherein an air pressure block is fixedly connected to the middle of an inner cavity of the shell, heat dissipation cavities are formed in the upper wall and the lower wall of the air pressure block, bearing seats are fixedly installed on the left wall and the right wall of the air pressure block, an air pressure screw rod is rotatably connected between the bearing seats, annular grooves are formed in the surfaces of two sides of the air pressure screw rod, star gears are rotatably connected to the upper portion and the lower portion of the inner cavity of the air pressure block, special-shaped frames are slidably connected to two ends of the air pressure block, oil adding seats are fixedly connected to the upper end and the lower end of each bearing seat, piston strips are slidably connected to the inner portions of the oil adding seats, an auxiliary disc is rotatably connected to the front of the inner cavity piston strips of the shell, telescopic ejector rods extending to the special-shaped frames are fixedly connected to the inner cavity side walls of the shell, sliding frames are fixedly connected between the telescopic ejector rods, the inside sliding connection of sliding frame has the slider, swing joint has the guide arm between slider and the flexible ejector pin, swing joint has the push rod between slider and the auxiliary disk, one side fixed mounting that empty briquetting was kept away from on the surface of sliding frame has flexible post, the top swing joint of flexible post has the pressure rod that extends to on the slider, fixedly connected with gasbag ring between the slider.

Preferably, the protection frame of inner chamber lateral wall air briquetting both sides fixedly connected with and piston strip adaptation of casing, and the front end fixed mounting of protection frame have the bearing housing that extends to on the auxiliary disc, swing joint between bearing housing and the piston strip to can drive the piston strip and move in vertical direction when the auxiliary disc deflects.

Preferably, one side of the inner cavity side wall of the heat dissipation cavity, which is close to the star gear, is fixedly connected with a heat conduction strip, and the heat conduction strip is in an arc shape, so that heat generated when the air compression component moves can be absorbed conveniently, and the heat can be conducted.

Preferably, one side of the inner cavity of the heat dissipation cavity, which is close to the bearing seat, is provided with an air outlet, and one side of the inner cavity of the heat dissipation cavity, which is close to the sliding frame, is provided with an air inlet.

Preferably, the inner cavity side wall fixedly connected with of dysmorphism frame extends to the projection in the annular to when making the annular to be driven by the pneumatics screw rod and continuously rotate, can make special-shaped frame driven in the reciprocating motion that lasts on horizontal.

Preferably, the upper end and the lower extreme of dysmorphism frame all are provided with the slope surface with flexible ejector pin adaptation, and the one end that flexible ejector pin is close to the slope surface rotates and is connected with the deflector roll.

Preferably, the space formed between the pressurizing rod and the airbag ring is designed in a sealing manner, so that when the airbag ring and the pressurizing rod are deformed relatively, the inside and outside air can be correspondingly exhausted.

Advantageous effects

Compared with the prior art, the invention provides a single-screw air compressor for a locomotive with balanced stress, which has the following beneficial effects:

1. when the air compression screw drives the star gear to do air compression movement, the deformed frames on the two sides can synchronously reciprocate horizontally, when the deformed frames move backwards, the telescopic ejector rods adjacent to the deformed frames can be extruded and contracted through the inclined slopes arranged on the deformed frames, the guide rods correspondingly deflect and move to push the sliding blocks to move, the sliding blocks then extrude the pressure rods to enable the pressure rods to deviate, the telescopic columns are synchronously driven to elongate, the synchronous air bag rings are extruded and deformed, the volume of a closed space formed by the air bag rings and the pressure rods is reduced, low-temperature gas in the closed space is extruded into adjacent heat dissipation cavities, the low-temperature gas flows along the heat dissipation cavities to take away heat conducted from the interior of the air pressure blocks, and finally the low-temperature gas flows to the air outlets beside the bearing seats on the two sides respectively to escape, so that the heat generated during air compression can be conveniently and effectively treated, thereby effectively avoiding the self-balancing state of the air compression part from being influenced by high temperature.

2. This balanced single screw air compressor machine for locomotive of atress, when driving the guide arm skew and promoting the slider and remove through flexible ejector pin shrink, the slider can drive the push rod simultaneously and promote the auxiliary disc deflection, and then the piston strip that drives the rear end moves to one side of adding the oil seat, in order to extrude the lubricating oil ration in the oil seat inner chamber to the bearing frame, because the upper and lower side of bearing frame all is provided with and adds the oil seat, consequently along with the rotation of pneumatics screw rod, enter into the inside lubricating oil of bearing frame and can be fast and even and each item movable part contact in adding the oil seat, in order to reach lubricated maintenance's purpose, thereby complex stability between the compression part when further having strengthened air compression.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a front sectional view of a connecting portion of a slider and the like according to the present invention;

FIG. 3 is a front sectional view of a connecting portion such as a pressurizing rod according to the present invention;

fig. 4 is a front sectional view of a connecting portion of an air compressing block and the like of the present invention.

In the figure: 1. a housing; 2. pressing the block in an empty state; 3. a heat dissipation cavity; 4. a bearing seat; 5. compressing the screw rod by air; 6. a ring groove; 7. a star gear; 8. a special-shaped frame; 9. an oil adding seat; 10. a piston strip; 11. an auxiliary disc; 12. a telescopic ejector rod; 13. a slide frame; 14. a slider; 15. a guide bar; 16. a push rod; 17. a telescopic column; 18. a pressurizing rod; 19. a balloon ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a single screw air compressor for a locomotive with balanced stress comprises a housing 1, wherein two sides of an air pressure block 2 on the inner cavity side wall of the housing 1 are fixedly connected with a protective frame matched with a piston bar 10, the front end of the protective frame is fixedly provided with a bearing sleeve extending to an auxiliary disc 11, the bearing sleeve is movably connected with the piston bar 10 so as to drive the piston bar 10 to move in the vertical direction when the auxiliary disc 11 deflects, the middle part of the inner cavity of the housing 1 is fixedly connected with the air pressure block 2, the upper wall and the lower wall of the air pressure block 2 are both provided with a heat dissipation cavity 3, one side of the inner cavity side wall of the heat dissipation cavity 3 close to a star gear 7 is fixedly connected with a heat conduction bar which is arc-shaped so as to absorb heat generated when an air pressure component moves and conduct the heat, one side of the inner cavity of the heat dissipation cavity 3 close to a bearing seat 4 is provided with an air outlet, and one side of the inner cavity of the heat dissipation cavity 3 close to a sliding frame 13 is provided with an air inlet, bearing seats 4 are fixedly installed on the left wall and the right wall of the air pressure block 2, air pressure screws 5 are rotatably connected between the bearing seats 4, annular grooves 6 are formed in the surfaces of the two sides of each air pressure screw 5, star gears 7 are rotatably connected to the upper portion and the lower portion of an inner cavity of the air pressure block 2, special-shaped frames 8 are slidably connected to the two ends of the air pressure block 2, protruding columns extending into the annular grooves 6 are fixedly connected to the side walls of the inner cavity of the special-shaped frames 8, so that when the annular grooves 6 are driven by the air pressure screws 5 to rotate continuously, the special-shaped frames 8 can be driven to do continuous reciprocating motion in the transverse direction, inclined slopes matched with the telescopic ejector rods 12 are arranged at the upper end and the lower end of each special-shaped frame 8, guide rollers are rotatably connected to one ends, close to the inclined slopes, of the telescopic ejector rods 12 drive the star gears 7 to do air compression motion through the air pressure screws 5, the special-shaped frames 8 on the two sides can synchronously reciprocate in the transverse direction, when the special-shaped frame 8 moves backwards, through the inclined slope surface arranged on the special-shaped frame, the telescopic ejector rod 12 adjacent to the special-shaped frame can be extruded and contracted, correspondingly, the guide rod 15 deflects to move to push the slider 14 to move, the slider 14 extrudes the pressurizing rod 18 to make the pressurizing rod offset, the telescopic column 17 is driven to be elongated synchronously, the synchronous air bag ring 19 is extruded and deformed, the volume of a closed space formed between the air bag ring 19 and the pressurizing rod 18 is reduced, low-temperature gas in the closed space is extruded into the adjacent heat dissipation cavity 3, heat conducted out of the inside of the air pressing block 2 is taken away along the flow of the heat dissipation cavity 3, and finally the low-temperature gas flows out of the air outlets beside the bearing seats 4 on two sides respectively, so that the heat generated during air compression is effectively processed conveniently, and the self-balancing state of the air pressing block is effectively prevented from being influenced by high temperature.

The upper end and the lower end of the bearing seat 4 are fixedly connected with an oil adding seat 9, the inner part of the oil adding seat 9 is connected with a piston strip 10 in a sliding manner, the front of the inner cavity piston strip 10 of the shell 1 is connected with an auxiliary disc 11 in a rotating manner, the inner cavity side wall of the shell 1 is fixedly connected with a telescopic ejector rod 12 extending to the special-shaped frame 8, a sliding frame 13 is fixedly connected between the telescopic ejector rods 12, the inner part of the sliding frame 13 is connected with a sliding block 14 in a sliding manner, when the telescopic ejector rod 12 contracts to drive a guide rod 15 to deviate and push the sliding block 14 to move, the sliding block 14 can synchronously drive a push rod 16 to push the auxiliary disc 11 to deflect, so that the piston strip 10 at the rear end is driven to move towards one side of the oil adding seat 9, so as to quantitatively extrude lubricating oil in the inner cavity of the oil adding seat 9 into the bearing seat 4, the oil adding seat 9 is arranged on the upper side and the lower side of the bearing seat 4, therefore, along with the rotation of the air compression screw 5, the lubricating oil entering the inner part of the bearing seat 4 can be rapidly and uniformly contacted with all movable parts, so as to achieve the purpose of lubrication and maintenance, thereby further enhancing the stability of matching between compression parts during air compression.

Swing joint has guide arm 15 between slider 14 and the flexible ejector pin 12, swing joint has push rod 16 between slider 14 and the auxiliary disk 11, one side fixed mounting that empty briquetting 2 was kept away from on the surface of sliding frame 13 has flexible post 17, the top swing joint of flexible post 17 has pressure bar 18 that extends to on the slider 14, the space of constituteing between pressure bar 18 and the gasbag ring 19 is sealed design, thereby when making to take place deformation relatively between gasbag ring 19 and the pressure bar 18, can be corresponding take out and put inside and outside gas, fixedly connected with gasbag ring 19 between the slider 14.

The working principle is as follows: when the air compression screw 5 drives the star gear 7 to do air compression movement, the special-shaped frames 8 on the two sides synchronously reciprocate horizontally, when the special-shaped frames 8 move backwards, the telescopic ejector rods 12 adjacent to the special-shaped frames can be extruded and contracted through the inclined slope surfaces arranged on the special-shaped frames, the guide rods 15 correspondingly deflect and move to push the slide blocks 14 to move, the slide blocks 14 then extrude the pressure rods 18 to deflect, the telescopic columns 17 are synchronously driven to elongate, the synchronous air bag rings 19 are extruded and deformed, the volume of a closed space formed between the air bag rings 19 and the pressure rods 18 is reduced, low-temperature gas in the closed space is extruded to the adjacent heat dissipation cavities 3, flows along the heat dissipation cavities 3 to take away heat conducted from the interior of the air compression blocks 2, and finally flows to the air outlet holes beside the bearing seats 4 on the two sides to escape respectively, and then convenient heat that produces when air compression carries out the effective processing, thereby the effectual self-balancing state of having avoided the air compression piece receives high temperature to influence, in addition when flexible ejector pin 12 shrink drives guide arm 15 skew and promotes slider 14 and remove, slider 14 can drive push rod 16 simultaneously and promote auxiliary disc 11 deflection, and then drive the piston strip 10 of rear end and remove to one side of adding oil seat 9, in order to extrude the lubricating oil ration in the oil seat 9 inner chamber to bearing frame 4, because the upper and lower side of bearing frame 4 all is provided with and adds oil seat 9, consequently along with the rotation of air compression screw rod 5, get into the inside lubricating oil of bearing frame 4 and can be fast and even and each item movable part contact in adding oil seat 9, in order to reach lubricated maintenance's purpose, thereby the stability of complex between the compression part when further having strengthened air compression.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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

1. The utility model provides a balanced locomotive of atress is with single screw air compressor machine, includes casing (1), its characterized in that: the inner chamber middle part fixed connection of casing (1) has empty briquetting (2), heat dissipation chamber (3) have all been seted up to the upper wall and the lower wall inside of empty briquetting (2), equal fixed mounting has bearing frame (4) on the left wall and the right wall of empty briquetting (2), it is connected with pneumatics screw rod (5) to rotate between bearing frame (4), annular (6) have all been seted up on the both sides surface of pneumatics screw rod (5), the inner chamber upper portion and the lower part of empty briquetting (2) all rotate and are connected with star gear (7), the both ends of empty briquetting (2) all sliding connection has special-shaped frame (8), upper end and the equal fixed connection of lower extreme of bearing frame (4) add oil seat (9), the inside sliding connection that adds oil seat (9) has piston strip (10), the place ahead rotation of inner chamber piston strip (10) of casing (1) is connected with auxiliary disc (11), the side wall of the inner cavity of the shell (1) is fixedly connected with telescopic ejector rods (12) extending to the special-shaped frame (8), sliding frames (13) are fixedly connected between the telescopic ejector rods (12), sliding blocks (14) are slidably connected inside the sliding frames (13), guide rods (15) are movably connected between the sliding blocks (14) and the telescopic ejector rods (12), push rods (16) are movably connected between the sliding blocks (14) and the auxiliary disc (11), telescopic columns (17) are fixedly installed on one sides, far away from the air pressure block (2), of the surfaces of the sliding frames (13), the top ends of the telescopic columns (17) are movably connected with pressure rods (18) extending to the sliding blocks (14), and air bag rings (19) are fixedly connected between the sliding blocks (14); the side wall of the inner cavity of the special-shaped frame (8) is fixedly connected with a convex column extending into the annular groove (6); the upper end and the lower end of the special-shaped frame (8) are both provided with an inclined slope surface matched with the telescopic ejector rod (12).

2. The single-screw air compressor for the locomotive with the balanced stress of claim 1 is characterized in that: the inner cavity side wall hollow pressing block (2) of the shell (1) is fixedly connected with a protection frame matched with the piston strip (10) on two sides.

3. The single-screw air compressor for the locomotive with the balanced stress of claim 2 is characterized in that: and a heat conduction strip is fixedly connected to one side, close to the star gear (7), of the side wall of the inner cavity of the heat dissipation cavity (3).

4. The single-screw air compressor for the locomotive with the balanced stress of claim 3, wherein: and an air outlet hole is formed in one side, close to the bearing seat (4), of the inner cavity of the heat dissipation cavity (3).

5. The single-screw air compressor for the locomotive with the balanced stress of claim 4, wherein: the space formed between the pressure rod (18) and the balloon ring (19) is of a sealed design.