CN211202179U

CN211202179U - Eight-cylinder magnetic induction distributor with centrifugal structure

Info

Publication number: CN211202179U
Application number: CN202020111263.0U
Authority: CN
Inventors: 沈晓峰
Original assignee: Ningbo Daguang Auto Parts Co ltd
Current assignee: Ningbo Daguang Auto Parts Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-08-07
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to an automobile parts field especially relates to a magnetic induction distributor of eight jars area centrifugation structures, including distributor shell, outage ware and centrifugal adjustment ware, the inside outage ware that is provided with in distributor shell upper end, the lower extreme of outage ware is provided with centrifugal adjustment ware, centrifugal adjustment ware is including installing the tray at distributor shell lower extreme inner wall, the mid-mounting of tray has the center pin, just the center pin passes the bottom plate middle part, the symmetry is provided with centrifugal mechanism around the tray up end, the middle part lateral wall of center pin is connected with through the bearing rotation and dials the board. The utility model discloses eight jars of car take centrifugal structure's magnetic induction distributor through optimizing centrifugal regulator's structure, adjusts centrifugal regulator's control spring into two, guarantees the elongation of every spring in proper order in the harmless within range of spring, avoids the tensile overlength of spring impaired to reach extension distributor life's purpose.

Description

Eight-cylinder magnetic induction distributor with centrifugal structure

Technical Field

The utility model relates to an automobile parts field, in particular to eight jars take magnetic induction distributor of centrifugation structure.

Background

The distributor is a part for timely controlling the on-off of primary circuit in the ignition system of automobile and distributing spark to spark plugs of each cylinder in sequence, and the distributor in the traditional ignition system is usually composed of distributor, breaker, capacitor and ignition advance regulator in an assembly.

The ignition advance adjusting device is divided into a centrifugal type and a vacuum type, wherein a centrifugal regulator belongs to a quick-wear part, the principle is that an ignition point is lifted by utilizing the action of centrifugal force, a part matched with the centrifugal force is a spring, the spring continuously performs stretching and contracting reciprocating motion under the action of the centrifugal force, but when the speed is continuously accelerated, the stretching length of the spring is continuously increased, the length of a pull rope plays a decisive role in the service life of the spring, and the service life of the conventional centrifugal regulator is not long; the adoption of a method for increasing the elastic strength of the spring inevitably leads to insufficient sensitivity of the centrifugal regulator.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of providing an eight-cylinder magnetic induction distributor with a centrifugal structure, so as to overcome the problem that the service life of a centrifugal regulator in the existing distributor is not long; the service life of the centrifugal regulator which is a quick-wear part is prolonged while the sensitivity of the centrifugal regulator is guaranteed, so that the purpose of prolonging the service life of the distributor is achieved.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: the utility model provides an eight jars take magnetic induction distributor of centrifugation structure, includes distributor shell, outage ware and centrifugal adjustment ware, distributor shell upper end inside is provided with the outage ware, the lower extreme of outage ware is provided with centrifugal adjustment ware.

The breaker comprises a bottom plate arranged on the inner wall of the middle part of the distributor shell, a pin shaft is arranged on the left side of the upper end face of the bottom plate, a fixed contact support is sleeved on the lower side wall of the pin shaft, the other end of the fixed contact support is arranged on the bottom plate, a movable contact arm is sleeved on the upper side wall of the pin shaft, a contact arm spring is arranged between the rear side of the movable contact arm and the distributor shell, a bakelite jacking block is arranged at the rear end of the movable contact arm, and the bakelite jacking block is attached to the cam; when the ignition device works, under the action of the contact arm spring, the cam in the centrifugal regulator rotates, and the bakelite jacking block drives the movable contact on the movable contact arm to make reciprocating contact with and break off from the fixed contact, so that ignition operation is realized.

The centrifugal regulator comprises a tray arranged on the inner wall of the lower end of the distributor shell, a central shaft is arranged in the middle of the tray and penetrates through the middle of the breaker, centrifugal mechanisms are symmetrically arranged on the upper end face of the tray along the center of the central shaft, a shifting plate is rotatably connected to the side wall of the middle of the central shaft through a bearing, and a cam is arranged at the upper end of the shifting plate through an extension cylinder.

As a preferred technical solution of the present invention, the centrifugal mechanism includes a fixing rod installed on the upper end surface of the tray, a centrifugal weight is installed on the side wall of the fixing rod through a bearing, a centrifugal spring is provided between the rear end of the centrifugal weight and the fixing rod of the right-side centrifugal mechanism, the elastic strength of the centrifugal spring is smaller than that of the auxiliary spring, the inner wall of the centrifugal weight is provided with a centrifugal branch chain, the lower end surface of the centrifugal weight is provided with a limit groove, a limit post is slidably provided in the limit groove, and the limit post is installed on the upper end surface of the tray, the upper end surface of the centrifugal weight is provided with an adjusting post, and the adjusting post is located in a groove on the shifting plate, the left end of the groove is a long strip shape, the right end is an arc shape, and the arc center is located on the center line of; when concrete during operation, the rotational speed further improved, ignition point angle in advance can further advance, but because the existence of spacing post for centrifugal weight piece exhibition has the maximum distance, and consequently guarantee centrifugal spring can not receive the damage because of overload work, with this guarantee vulnerable part centrifugal regulator's life.

As a preferred technical solution of the present invention, the centrifugal branch chain includes an auxiliary groove disposed in the centrifugal weight block, an auxiliary rod is disposed in the auxiliary groove, the auxiliary rod is rotatably connected to the auxiliary block, an auxiliary spring is connected between the rear end of the auxiliary block and the auxiliary groove, the auxiliary block has the same structure as the centrifugal weight block, and the front end of the auxiliary groove is communicated with a pushing groove; during specific work, because the centrifugal weight has reached the farthest distance, the centrifugal spring is not damaged by acceleration at the moment, the elastic strength of the centrifugal spring is smaller than that of the auxiliary spring, and the auxiliary block is expanded under the influence of centrifugal force due to the fact that the centrifugal force is further increased when the centrifugal weight is accelerated at the moment, so that the auxiliary block is expanded outwards.

As a preferred technical scheme of the utility model, it has the catch bar to promote the inslot through rotating the leg joint, the catch bar is T shape structure, the rear end of catch bar is laminated mutually with the lateral wall of supplementary piece, the rear end downside of supplementary piece is equipped with the ball.

As a preferred technical solution of the present invention, the upper end surface of the pushing groove is communicated with the upper end surface of the centrifugal weight, and the front end of the pushing groove is gradually raised; when the ignition device works specifically, the push rod can move upwards while pushing forwards, the upper end of the push rod can exceed the upper end face of the centrifugal weight and push the shifting plate to further rotate forwards, namely, the upper end face of the centrifugal weight is advanced by a certain angle, and the angle drives the cam to further advance, namely, the ignition point is advanced, so that the ignition point is further advanced.

Compared with the prior art, the technical scheme of the utility model have following advantage:

1. the utility model provides an eight jars take magnetic induction distributor of centrifugal structure through optimizing centrifugal regulator's structure, adjusts centrifugal regulator's control spring into two, guarantees the elongation of every spring in proper order in the harmless within range of spring, avoids the tensile overlength of spring impaired to reach extension distributor life's purpose.

2. The utility model provides an eight jar magnetic induction distributor of taking centrifugal structure, because the elastic strength of centrifugal spring is less than the elastic strength of auxiliary spring, when speed increases to the specified value, centrifugal spring extends to the biggest, and the cam rotates certain angle in advance in order to ignite in advance this moment, and when the rotational speed continues to increase, centrifugal branch chain work makes the cam further advance the angle, promptly further advance the ignition point;

3. the utility model provides an eight-cylinder magnetic induction distributor with centrifugal structure, when the centrifugal branch chain works, the centrifugal force makes the auxiliary block drive the auxiliary spring to stretch, at the moment, the auxiliary block pushes the push rod to push forwards and rise, the push rod drives the shifting plate (namely the cam) to further advance the ignition angle, namely, the further advance ignition point can be realized;

4. the utility model provides an eight jars take magnetic induction distributor of centrifugation structure, centrifugal regulator are by the different spring control of two sections coefficient of elasticity to the guarantee spring can not overstretch, with the life of extension spring, reach extension distributor life's purpose.

Drawings

FIG. 1 is a schematic structural diagram of internal parts of the distributor of the present invention;

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

fig. 3 is an enlarged view of a portion of fig. 2 according to the present invention;

fig. 4 is a schematic structural view of the centrifugal weights, the thrust grooves, the rotating bracket, the push rods and the balls of the present invention.

Wherein: the device comprises a distributor housing 1, an interrupter 2, a base plate 21, a pin shaft 22, a fixed contact support 23, a movable contact arm 24, a contact arm spring 25, a bakelite jacking block 26, a centrifugal adjuster 3, a tray 31, a central shaft 32, a centrifugal mechanism 33, a fixed rod 331, a centrifugal weight 332, a centrifugal spring 333, a limit groove 334, a limit column 335, an adjusting column 336, a groove 337, a dial plate 34, a cam 35, a centrifugal branch chain 36, an auxiliary groove 361, an auxiliary rod 362, an auxiliary block 363, an auxiliary spring 363a, a pushing groove 364, a rotating support 365, a pushing rod 366 and a ball 367.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 3, the utility model provides an eight jars take magnetic induction distributor of centrifugation structure, including distributor shell 1, outage ware 2 and centrifugal adjustment ware 3, distributor shell 1 upper end inside is provided with outage ware 2, and the lower extreme of outage ware 2 is provided with centrifugal adjustment ware 3.

The circuit breaker 2 comprises a bottom plate 21 arranged on the inner wall of the middle part of a distributor shell 1, a pin shaft 22 is arranged on the left side of the upper end face of the bottom plate 21, a fixed contact support 23 is sleeved on the lower side wall of the pin shaft 22, the other end of the fixed contact support 23 is arranged on the bottom plate 21, a movable contact arm 24 is sleeved on the upper side wall of the pin shaft 22, a contact arm spring 25 is arranged between the rear side of the movable contact arm 24 and the distributor shell 1, a bakelite jacking block 26 is arranged at the rear end of the movable contact arm 24, the bakelite jacking block 26 is attached to a cam 35, the distributor comprises the circuit breaker 2, a distributor, a capacitor, an ignition advance adjusting device and the like, in the embodiment, only the ignition advance adjusting device, namely a centrifugal regulator 3, is used for describing the adjusting the ignition time point of the circuit breaker 2, other working steps are the prior art, wherein the number of convex angles of the, thus, each cylinder of the engine can be ensured to be ignited once in one working cycle; in the specific operation, under the action of the contact arm spring 25, the cam 35 in the centrifugal regulator 3 rotates, and the bakelite jacking block 26 drives the movable contact on the movable contact arm 24 to make reciprocating contact with and break from the fixed contact, so that the ignition operation is realized.

Centrifugal regulator 3 is including installing tray 31 at distributor housing 1 lower extreme inner wall, and the mid-mounting of tray 31 has center pin 32, and center pin 32 passes breaker 2 middle part, and the central symmetry of tray 31 up end along center pin 32 is equipped with centrifugal mechanism 33, and the middle part lateral wall of center pin 32 is connected with through the bearing rotation and dials board 34, dials the upper end of board 34 and installs cam 35 through the extension section of thick bamboo.

The centrifugal mechanism 33 comprises a fixed rod 331 installed on the upper end surface of the tray 31, a centrifugal weight 332 is installed on the side wall of the fixed rod 331 through a bearing, a centrifugal spring 333 is arranged between the rear end of the centrifugal weight 332 and the fixed rod 331 of the right-side centrifugal mechanism 33, the elastic strength of the centrifugal spring 333 is smaller than that of an auxiliary spring 361a, a centrifugal branched chain 36 is arranged on the inner wall of the centrifugal weight 332, a limit groove 334 is arranged on the lower end surface of the centrifugal weight 332, a limit column 335 is arranged in the limit groove 334 in a sliding manner, the limit column 335 is installed on the upper end surface of the tray 31, an adjusting column 336 is arranged on the upper end surface of the centrifugal weight 332, the adjusting column 336 is arranged in a groove 337 on the shifting plate 34, the left end of the groove 337 is long-strip-shaped; when the engine works specifically, the cam 35 shaft of the engine, namely the central shaft 32 drives the cam 35 to rotate, the central shaft 32 drives the tray 31 to rotate, and meanwhile, the centrifugal weights 332 also rotate, when the rotating speed reaches a certain value, the central shaft 32 rotates to drive the centrifugal weights 332 to generate centrifugal force, the centrifugal force can enable the centrifugal springs 333 to stretch, at the moment, the centrifugal weights 332 expand outwards, when the centrifugal weights 332 expand outwards, the adjusting column 336 drives the shifting plate 34 to advance by a certain angle, and as the cam 35 is installed on the shifting plate 34 through the extending cylinder, the cam 35 also rotates to advance by a certain angle, the ignition point can be advanced by the advanced angle, so that the purpose of gradually advancing the ignition point along with the increase of the rotating speed of the engine is achieved; when the rotating speed is further increased, the angle can be further advanced, but due to the existence of the limiting column 335, the centrifugal weight 332 is expanded to the maximum distance, so that the centrifugal spring 333 is not damaged due to overload work, and the service life of the centrifugal regulator 3 of the vulnerable part is guaranteed.

The centrifugal branched chain 36 comprises an auxiliary groove 361 arranged in the centrifugal weight 332, an auxiliary rod 362 is arranged in the auxiliary groove 361, the auxiliary rod 362 is rotatably connected with an auxiliary block 363, an auxiliary spring 361a is connected between the rear end of the auxiliary block 363 and the auxiliary groove 361, the auxiliary block 363 and the centrifugal weight 332 have the same structure, and the front end of the auxiliary groove 361 is communicated with a pushing groove 364; in a specific operation, when the rotation speed is further increased, since the centrifugal weight 332 reaches the farthest distance, the centrifugal spring 333 is not damaged by the acceleration, and the elastic strength of the centrifugal spring 333 is smaller than that of the auxiliary spring 361a, and the centrifugal force is further increased to cause the auxiliary mass 363 to expand under the influence of the centrifugal force, before the centrifugal force of the auxiliary mass 363 is restrained by the auxiliary spring 361a to be balanced, and the centrifugal force is larger than the restraining force of the auxiliary spring 361a to cause the auxiliary mass 363 to expand outward.

The pushing groove 364 is connected with a pushing rod 366 through a rotating bracket 365, the pushing rod 366 is of a T-shaped structure, the rear end of the pushing rod 366 is attached to the side wall of the auxiliary block 363, and a ball 367 is arranged on the lower side of the rear end of the auxiliary block 363.

The upper end surface of the pushing groove 364 is communicated with the upper end surface of the centrifugal weight 332, and the front end of the pushing groove 364 is gradually raised; in specific operation, the expansion of the auxiliary block 363 pushes the pushing rod 366 in the pushing slot 364 forward, and due to the gradually rising trend of the front end of the pushing slot 364, the pushing rod 366 moves upward while pushing forward, at this time, the upper end of the pushing rod 366 exceeds the upper end surface of the centrifugal weight 332 and pushes the dial plate 34 to rotate further forward, i.e., advanced by an angle that drives the cam 35 further forward, i.e., the ignition point, so that the ignition point is further advanced, in the whole working process, along with the increase of the rotating speed, the centrifugal regulator 3 uses two sections of springs with different strengths to control the advance angle of the ignition point, and the working ranges of the springs at the two ends are mutually connected, therefore, the overload work of each section of spring is guaranteed, and compared with the existing single-spring control, the service life of the easily damaged part spring is prolonged, namely the service life of the distributor is prolonged.

The overall working steps of the distributor are as follows:

s1 general operating principle: under the action of the contact arm spring 25, the cam 35 in the centrifugal regulator 3 rotates, and drives the movable contact on the movable contact arm 24 to make reciprocating contact with and break from the fixed contact through the bakelite jacking block 26, so as to realize ignition operation;

s2 spark advance first stage: the cam 35 shaft of the engine, namely the central shaft 32, drives the cam 35 to rotate, the central shaft 32 drives the tray 31 to rotate, and meanwhile, the centrifugal weight 332 also rotates, when the rotating speed reaches a certain value, the central shaft 32 rotates and drives the centrifugal weight 332 to generate centrifugal force, so that when the centrifugal weight 332 is unfolded outwards, the adjusting column 336 drives the shifting plate 34 to advance by a certain angle, and the cam 35 is installed on the shifting plate 34 through the extension cylinder, so that the cam 35 also rotates and advances by a certain angle, and the ignition point can be advanced by the advanced angle;

s3 protection: when the rotating speed is further increased, the angle is further advanced, but due to the existence of the limiting column 335, the centrifugal weight 332 is expanded to the maximum distance, so that the centrifugal spring 333 is not damaged due to overload work, and the service life of the centrifugal regulator 3 of the vulnerable part is guaranteed;

s4 spark advance second phase a: when the rotation speed is further increased, since the centrifugal weight 332 reaches the farthest distance, the centrifugal spring 333 is not damaged by the acceleration, and the elastic strength of the centrifugal spring 333 is less than that of the auxiliary spring 361a, and the centrifugal force is further increased to cause the auxiliary mass 363 to expand under the influence of the centrifugal force, before the centrifugal force of the auxiliary mass 363 is restrained by the auxiliary spring 361a to be balanced, and the centrifugal force is greater than the restraining force of the auxiliary spring 361a to cause the auxiliary mass 363 to expand outwards;

s5 spark advance second phase b: the expansion of the auxiliary block 363 pushes the pushing rod 366 in the pushing groove 364 forwards, and because the front end of the pushing groove 364 is in a gradually rising trend, the pushing rod 366 moves upwards while pushing forwards, at the moment, the upper end of the pushing rod 366 exceeds the upper end surface of the centrifugal weight 332 and pushes the shifting plate 34 to further rotate forwards, namely, a certain angle is advanced, and the angle drives the cam 35 to further advance, namely, the ignition point is advanced, so that the ignition point is further advanced;

s6 prolonging service life: in the whole working process, along with the improvement of the rotating speed, the centrifugal regulator 3 controls the advance angle of the ignition point by using two sections of springs with different strengths, and the working ranges of the springs at the two ends are mutually connected, so that the overload work of each section of spring is avoided.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an eight jars take magnetic induction distributor of centrifugation structure which characterized in that: including distributor shell (1), outage ware (2) and centrifugal regulation ware (3), inside outage ware (2) of being provided with in distributor shell (1) upper end, the lower extreme of outage ware (2) is provided with centrifugal regulation ware (3), wherein:

the centrifugal regulator (3) comprises a tray (31) arranged on the inner wall of the lower end of a distributor shell (1), a central shaft (32) is arranged in the middle of the tray (31), the central shaft (32) penetrates through the middle of the breaker (2), centrifugal mechanisms (33) are symmetrically arranged on the upper end face of the tray (31) along the center of the central shaft (32), the side wall of the middle of the central shaft (32) is rotatably connected with a shifting plate (34) through a bearing, and a cam (35) is arranged at the upper end of the shifting plate (34) through an extension cylinder;

the centrifugal mechanism (33) comprises a fixing rod (331) installed on the upper end face of the tray (31), a centrifugal weight (332) is installed on the side wall of the fixing rod (331) through a bearing, a centrifugal spring (333) is arranged between the rear end of the centrifugal weight (332) and the fixing rod (331) of the right-side centrifugal mechanism (33), a centrifugal branch chain (36) is arranged on the inner wall of the centrifugal weight (332), a limit groove (334) is arranged on the lower end face of the centrifugal weight (332), a limit column (335) is arranged in the limit groove (334) in a sliding mode, the limit column (335) is installed on the upper end face of the tray (31), an adjusting column (336) is arranged on the upper end face of the centrifugal weight (332), and the adjusting column (336) is arranged in a groove (337) in the shifting plate (34).

2. The eight-cylinder magnetic induction distributor with centrifugal structure according to claim 1, wherein: the circuit breaker (2) is including installing bottom plate (21) at distributor shell (1) middle part inner wall, bottom plate (21) up end left side is provided with round pin axle (22), round pin axle (22) downside wall has cup jointed fixed contact support (23), the other end of fixed contact support (23) is installed on bottom plate (21), side wall has cup jointed movable contact arm (24) on round pin axle (22), be provided with contact arm spring (25) between the rear side of movable contact arm (24) and distributor shell (1), movable contact arm (24) rear end is provided with bakelite kicking block (26), just bakelite kicking block (26) with cam (35) laminate mutually.

3. The eight-cylinder magnetic induction distributor with centrifugal structure according to claim 1, wherein: the centrifugal branch chain (36) comprises an auxiliary groove (361) arranged in the centrifugal weight (332), an auxiliary rod (362) is arranged in the auxiliary groove (361), the auxiliary rod (362) is rotatably connected with an auxiliary block (363), an auxiliary spring (361a) is connected between the rear end of the auxiliary block (363) and the auxiliary groove (361), the auxiliary block (363) and the centrifugal weight (332) are identical in structure, and the front end of the auxiliary groove (361) is communicated with a pushing groove (364).

4. The eight-cylinder magnetic induction distributor with centrifugal structure according to claim 3, wherein: a push rod (366) is connected in the push groove (364) through a rotating support (365), the push rod (366) is of a T-shaped structure, the rear end of the push rod (366) is attached to the side wall of the auxiliary block (363), and a ball (367) is arranged on the lower side of the rear end of the auxiliary block (363).

5. The eight-cylinder magnetic induction distributor with centrifugal structure according to claim 1, wherein: the left end of the groove (337) is in a long strip shape, the right end of the groove is in an arc shape, and the arc center of the arc is positioned on the central line of the central shaft (32).

6. The eight-cylinder magnetic induction distributor with centrifugal structure according to claim 3, wherein: the upper end surface of the pushing groove (364) is communicated with the upper end surface of the centrifugal weight (332), and the front end of the pushing groove (364) is gradually raised.

7. The eight-cylinder magnetic induction distributor with centrifugal structure according to claim 1, wherein: the centrifugal spring (333) has an elastic strength smaller than that of the auxiliary spring (361 a).