CN211288422U

CN211288422U - Counterweight structure of automobile engine crankshaft

Info

Publication number: CN211288422U
Application number: CN201922502650.7U
Authority: CN
Inventors: 金凯
Original assignee: Shanghai Jijia Machinery Co ltd
Current assignee: Shanghai Jijia Machinery Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-18
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a counter weight structure of automobile engine bent axle, which comprises a housin, the lower extreme lateral wall fixedly connected with threaded rod of casing, threaded rod threaded connection has the bent axle, set up a plurality ofly on the crank of bent axle and threaded rod assorted thread groove, and the threaded rod one end of keeping away from the casing extend to and set up in the thread groove, a plurality of balancing weights have been placed in the casing, the upper end opening part of casing can be dismantled and be connected with the apron. The utility model relates to the field of automotive technology, through the casing that sets up, can be convenient for place required balancing weight according to actual conditions, avoid because of welding or with balancing weight an organic whole take shape on the bent axle, cause the unable weight of dismantling the adjustment balancing weight in later stage and lead to changing the loss that whole bent axle produced, and the cooperation of casing and apron, can avoid the erosion of external environment to the balancing weight, prolong the life of balancing weight.

Description

Counterweight structure of automobile engine crankshaft

Technical Field

The utility model relates to the field of automotive technology, especially, relate to a counter weight structure of automobile engine bent axle.

Background

The crankshaft counterweight is used for balancing the rotation inertia force and the moment thereof generated by the big end of the connecting rod, the journal of the connecting rod, the crank and the like, so that the crankshaft of the engine runs stably, and the purpose of stabilizing is to reduce the vibration amplitude and the frequency of the crankshaft after the crankshaft rotates at high speed.

Nowadays, most of crankshaft counterweights are integrated with crankshafts or directly welded on cranks, so that subsequent crankshafts are damaged and are inconvenient to disassemble and replace, and the crankshaft counterweights are directly exposed to the outside, so that the crankshaft counterweights are corroded by external factors such as dust and rainwater, and the damage rate of the crankshaft counterweights is accelerated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the crankshaft counterweight is difficult to disassemble and does not have protective measures in the prior crankshaft technology, and providing a counterweight structure of a crankshaft of an automobile engine.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an automobile engine bent axle's counter weight structure, includes the casing, the lower extreme lateral wall fixedly connected with threaded rod of casing, threaded rod threaded connection has the bent axle, set up a plurality ofly on bent axle's the crank with threaded rod assorted thread groove, and the threaded rod one end of keeping away from the casing extend to in the thread groove and set up, a plurality of balancing weights have been placed in the casing, the upper end opening part of casing can be dismantled and be connected with the apron.

Preferably, the upper end lateral wall of apron rotates and is connected with the knob that two symmetries set up, and cup joint in the knob with casing assorted lead screw, threaded connection has the briquetting on the lead screw, one side lateral wall that the briquetting is close to shells inner wall is connected with the slider, the spout has all been seted up to the both sides inner wall of casing, and sets up in the slider extends to the spout, set up two on the balancing weight and lead screw assorted through-hole, and the lead screw runs through the through-hole setting

Preferably, the upper end lateral wall threaded connection of apron has the bolt of two symmetry settings, the upper end lateral wall of casing seted up two with bolt assorted screw hole, and the one end of bolt runs through the apron and extends to the screw hole in and set up.

Preferably, the casing is fixedly connected with a vertically arranged slide bar, the counterweight block is provided with a slide hole matched with the slide bar, and the slide bar penetrates through the slide hole.

Preferably, a groove is formed in the side wall of one side of the pressing block and is in sliding connection with the sliding block, and a return spring is connected between the sliding block and the inner wall of the groove

Preferably, the casing is cylindrical structure, the balancing weight is circular structure, and the lateral wall of balancing weight just laminates in the inner wall of casing.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the cooperation of casing and threaded rod, be convenient for place required quantity's balancing weight in the casing, can adjust balancing weight quantity at will according to actual conditions, simple swift, avoid because inconvenient the changing that the welding caused and harm the bent axle surface, the casing can avoid the balancing weight to suffer external environment's erosion, and can be connected casing and bent axle through the threaded rod, the casing is dismantled in the later stage of being convenient for, changes the balancing weight.

2. Through the cooperation of lead screw and briquetting, convenient to use person makes the briquetting compress tightly the balancing weight through rotating the knob, places the balancing weight and takes place to rock in the casing, and the slide bar that sets up is convenient for fix a position the balancing weight, makes it stably place in the casing.

3. Through the cooperation of apron and bolt, be convenient for with apron closure and casing opening part, put and stop outside impurity to get into and corrode the balancing weight, and when need changing the balancing weight in the later stage, conveniently pass through bolt unblock apron.

Drawings

Fig. 1 is a schematic top view of a counterweight structure of an automobile engine crankshaft according to the present invention;

fig. 2 is a schematic front perspective structural view of a housing and a cover plate of a counterweight structure of an automobile engine crankshaft according to the present invention;

fig. 3 is a schematic top view of a counterweight block of a counterweight structure of an automobile engine crankshaft according to the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 5 is an enlarged schematic view of the structure at B in fig. 2.

In the figure: the device comprises a shell 1, a threaded rod 2, a crankshaft 3, a balancing weight 4, a cover plate 5, a knob 6, a lead screw 7, a pressing block 8, a sliding block 9, a sliding groove 10, a through hole 11, a bolt 12, a sliding rod 13, a sliding hole 14, a groove 15 and a return spring 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, a counterweight structure of a crankshaft of an automobile engine comprises a shell 1, wherein the shell 1 is of a cylindrical structure, a counterweight block 4 is of a circular structure, and the side wall of the balancing weight 4 is just attached to the inner wall of the shell 1, the structural characteristics of the shell 1 and the balancing weight 4, the counterweight block 4 can be placed in the shell 1 more stably, the side wall of the lower end of the shell 1 is fixedly connected with the threaded rod 2, the threaded rod 2 is in threaded connection with the crankshaft 3, the crank of the crankshaft 3 is provided with a plurality of thread grooves matched with the threaded rod 2, one end of the threaded rod 2 far away from the shell 1 extends into the threaded groove, a plurality of balancing weights 4 are placed in the shell 1, a vertically arranged sliding rod 13 is fixedly connected in the shell 1, a sliding hole 14 matched with the sliding rod 13 is arranged on the balancing weight 4, and the sliding rod 13 is arranged to penetrate through the sliding hole 14, and the sliding rod 13 is convenient for stably placing the balancing weight 4 in the shell 1.

The upper end opening part of casing 1 can be dismantled and be connected with apron 5, the upper end lateral wall of apron 5 rotates the knob 6 that is connected with two symmetries and sets up, and the cover has 1 assorted lead screw 7 with casing in 6, threaded connection has briquetting 8 on the lead screw 7, one side lateral wall that briquetting 8 is close to the casing 1 inner wall is connected with slider 9, spout 10 has all been seted up to casing 1's both sides inner wall, and slider 9 extends to and sets up in the spout 10, set up two and 7 assorted through-holes 11 of lead screw on the balancing weight 4, and lead screw 7 runs through-hole 11 and sets up, through the cooperation of lead screw 7 with briquetting 8, be convenient for through knob 6 control briquetting 8's axial motion, realize locking or unblock to balancing weight 4, slider 9 and spout 10's cooperation, can spacing briquetting 8.

Briquetting 8's one side lateral wall is seted up flutedly 15, and recess 15 and slider 9 sliding connection, be connected with reset spring 16 between slider 9 and the recess inner wall, utilize reset spring 16's flexible characteristic, be convenient for go into slider 9 card in the spout 10 or take out from spout 10, the upper end lateral wall threaded connection of apron 5 has the bolt 12 that two symmetries set up, casing 1's upper end lateral wall is seted up two and bolt 12 assorted screw hole, and bolt 12's one end runs through and laps 5 and extend to setting in the screw hole, bolt 12 is convenient for lock apron 5 and casing 1's closure, and make things convenient for the later stage to dismantle.

When needs are at bent epaxial fixed balancing weight 4, balancing weight 4 that will need quantity slides in casing 1 through slide bar 13, insert lead screw 7 in through-hole 11, make slider 9 card go into in spout 10 simultaneously, the opening part of the closed casing 1 of apron 5 this moment, through twisting bolt 12, make apron 5 lid casing 1 tightly, rotatory knob 6 drives lead screw 7 and rotates, because slider 9's limiting displacement, briquetting 8 can not follow lead screw 7 and rotate, only can axial motion, when briquetting 8 compresses tightly balancing weight 4, through threaded rod 2 with casing 1 threaded connection on bent axle 3's crank, can accomplish bent axle 3's balancing weight 4 installation, through this kind of counter weight structure, be convenient for dismantle and change balancing weight 4, and can prevent that balancing weight 4 from receiving the external environment erosion, improve balancing weight 4's life.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a counter weight structure of automobile engine bent axle, includes casing (1), its characterized in that, the lower extreme lateral wall fixedly connected with threaded rod (2) of casing (1), threaded rod (2) threaded connection has bent axle (3), set up a plurality ofly on the crank of bent axle (3) and threaded rod (2) assorted thread groove, and threaded rod (2) keep away from the one end of casing (1) and extend to and set up in the thread groove, a plurality of balancing weights (4) have been placed in casing (1), the upper end opening part of casing (1) can be dismantled and be connected with apron (5).

2. The counterweight structure of the crankshaft of the automobile engine according to claim 1, characterized in that the upper end side wall of the cover plate (5) is rotatably connected with two symmetrically arranged knobs (6), the knobs (6) are sleeved with lead screws (7) matched with the shell (1), the lead screws (7) are in threaded connection with press blocks (8), one side wall of each press block (8) close to the inner wall of the shell (1) is connected with a slide block (9), the inner walls of the two sides of the shell (1) are provided with slide grooves (10), the slide blocks (9) extend into the slide grooves (10) to be arranged, the counterweight block (4) is provided with two through holes (11) matched with the lead screws (7), and the lead screws (7) penetrate through the through holes (11) to be arranged.

3. The counterweight structure of the crankshaft of the automobile engine according to claim 1, characterized in that two symmetrically arranged bolts (12) are connected to the upper end side wall of the cover plate (5) in a threaded manner, two threaded holes matched with the bolts (12) are formed in the upper end side wall of the shell (1), and one ends of the bolts (12) extend through the cover plate (5) and are arranged in the threaded holes.

4. The counterweight structure of the crankshaft of the automobile engine according to claim 1, characterized in that a vertically arranged slide rod (13) is fixedly connected in the housing (1), a slide hole (14) matched with the slide rod (13) is formed in the counterweight block (4), and the slide rod (13) penetrates through the slide hole (14).

5. The counterweight structure of the crankshaft of the automobile engine according to claim 2, characterized in that a groove (15) is formed in one side wall of the pressing block (8), the groove (15) is connected with the sliding block (9) in a sliding manner, and a return spring (16) is connected between the sliding block (9) and the inner wall of the groove.

6. The counterweight structure of the crankshaft of the automobile engine according to claim 1, characterized in that the housing (1) is a cylindrical structure, the counterweight (4) is a circular structure, and the side wall of the counterweight (4) is just attached to the inner wall of the housing (1).