CN211954553U

CN211954553U - Inertia disc device with multi-stage rotational inertia

Info

Publication number: CN211954553U
Application number: CN202020478074.7U
Authority: CN
Inventors: 孙丽; 赵小平; 燕昭阳
Original assignee: Cama Luoyang Electromechanic Co Ltd
Current assignee: Cama Luoyang Electromechanic Co Ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-11-17
Anticipated expiration: 2030-04-03

Abstract

The utility model discloses an inertia disc device with multi-stage rotational inertia, which comprises a base, a base shaft, a base disc, an arc-shaped supporting plate and at least one inertia disc, wherein the base disc and the base shaft rotate synchronously; the base shaft is arranged above the base and is rotationally connected with the base, at least one group of arc-shaped supporting plates used for supporting the non-working inertia discs are detachably connected to the base, two arc-shaped supporting plates in each group are symmetrically arranged on two circumferential sides of the corresponding inertia disc by taking the base shaft as a center, the inertia discs are axially moved to correspond to the corresponding arc-shaped supporting plates, and the two arc-shaped supporting plates and the outer circumferential walls of the inertia discs on the corresponding sides are sequentially penetrated through limit screws so as to be connected. The rotational inertia amount in the inertia disc device is accurately controlled, the size and the number of the inertia discs are not limited, and the safety and the stability of the system work are ensured.

Description

Inertia disc device with multi-stage rotational inertia

Technical Field

The utility model belongs to the technical field of inertia dish device and specifically relates to an inertia dish device of multistage inertia is related to.

Background

The inertia disk device is an inertia body mounted on a rotating shaft, and when a plurality of inertia bodies are required to be mounted on the rotating shaft to form a multi-stage rotational inertia, the inertia body is usually designed into an inertia disk, that is, the inertia disk device is the multi-stage rotational inertia.

After the design of a product such as a starter is finished or before the product leaves a factory, the performance of the product such as the starting torque, the starting time, the stopping time and the like needs to be detected, and the performance is usually realized by adding an analog load on a test bench. The method for adding the analog load which is commonly used in the market at present is to add an inertia disc in a shafting. In order to reduce cost, save space, improve efficiency, etc., users often detect the performance of multiple products on the same rack, and the technical requirements of the products, such as the size of the analog load, the rotating speed, the starting time, etc., are different. This requires multiple inertia discs to be mounted on the same gantry axis. And selecting a required inertia disc to participate in work according to the requirements of the tested piece. How to connect and disconnect a plurality of inertia discs of the inertia device, how to accurately ensure the accurate inertia required by the test, and how to ensure the safety and the reliability of equipment in the test process are always difficult points in mechanical design.

In the prior art, an inertia disk device generally has the following two structures: a first type of inertia disc apparatus is shown in fig. 1, and operates according to the following principle: the fixed disc I6 is connected with the rotating shaft 8 in a key mode or the like, the movable disc I5 and the movable disc III 7 are connected with the fixed disc I6 through the cylindrical pin 4, the outer end face of the cylindrical pin 4 is limited by the pressing plate 3, the movable disc I5 and the movable disc III 7 are connected with the rotating shaft 8 through the bearing, and when the cylindrical pin 4 is installed, the corresponding movable discs work; when the cylindrical pin 4 is removed, the corresponding movable disc does not work. The structure is characterized in that: when the activity dish that does not use breaks away from, only need pull down cylindric lock 4, do not need radial movement, easy operation, but has serious problem in the actual test process: after the connected cylindrical pins 4 are removed, the corresponding movable disks and fixed disks I6 are completely disengaged in the axial direction, but the corresponding movable disks are still mounted on the rotating shaft 8 through bearings in the radial direction, and when the rotating shaft 8 rotates, the movable disks still rotate along with the rotating shaft. Therefore, the inner ring and the outer ring of the bearing rotate simultaneously, the bearing is damaged quickly, and meanwhile, the rotational inertia cannot be controlled accurately. As shown in fig. 2, the second inertia disc device includes a support flange 10 in addition to the components such as the rotating shaft, the movable disc III 13, the movable disc IV 14, the fixed disc II 12, and the bearing seat 11, and the support flange 10 is fixed on the bearing seat 11 and used for mounting the fixed inactive movable disc. The device has simple structure and convenient operation. However, the number and weight of the active disks are limited, which may affect the safety and stability of the system.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an inertia dish device of multistage inertia, the control of the inertia is accurate among this inertia dish device, and just the size and the quantity of inertia dish are unrestricted, guarantees the security and the stability of system's work.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

an inertia disc device with multi-stage rotational inertia comprises a base, a base shaft, a base disc, an arc-shaped supporting plate and at least one inertia disc, wherein the base disc is connected with the middle part of the base shaft through a key to realize synchronous rotation of the base disc and the base shaft; the base shaft is arranged above the base and is rotationally connected with the base, at least one group of arc-shaped supporting plates used for supporting the non-working inertia discs are detachably connected to the base, two arc-shaped supporting plates in each group are symmetrically arranged on two circumferential sides of the corresponding inertia disc by taking the base shaft as a center, the inertia discs are axially moved to correspond to the corresponding arc-shaped supporting plates, and the two arc-shaped supporting plates and the outer circumferential walls of the inertia discs on the corresponding sides are sequentially penetrated through limit screws so as to be connected.

Further, the bottom of arc backup pad is equipped with the bar hole, is equipped with the screw hole that corresponds on the base, and housing screw passes through behind the bar hole with screw hole threaded connection.

Furthermore, be equipped with the pitch arc unanimous with the outer circumference radian of inertia dish on the one side of the outer circumference of contact inertia dish in the arc backup pad, be equipped with a pair of limiting plate that is used for injecing the arc backup pad to being close to inertia dish direction shift position on the base between the arc backup pad that sets up in groups, the extending direction of limiting plate is unanimous with the extending direction of base shaft, and the arc backup pad with limiting plate looks butt passes through stop screw and can supports the inertia dish completely.

Furthermore, the outer circumferential wall of the inertia disc is provided with a threaded hole for mounting the hanging ring.

Further, the distance between the arc-shaped support plate and the corresponding inertia disc in working along the extension direction of the base shaft is more than 2 mm.

Furthermore, the base is detachably connected with a protective cover used for protecting the inertia disc and the base disc.

Furthermore, a spigot matched with the base disc is arranged on the side face, adjacent to the base disc, of the inertia disc, and mark scribed lines capable of aligning along the axial direction are arranged on the outer circumferences of the base disc and the inertia disc.

Further, base upper portion is equipped with along the recess that perpendicular to base shaft extending direction link up, and arc backup pad and limiting plate all locate in the recess.

Further, the number of the inertia discs is two, and the inertia discs are respectively positioned on two sides of the base disc.

Has the advantages that:

as described above, the present invention provides an inertia disk device with multi-level rotational inertia, which has the following advantages:

1. the utility model discloses a synchronous rotation is realized through connecting screw between the base plate among the inertia dish device and the corresponding inertia dish, when certain activity inertia dish was out of work, the connecting screw between this inertia dish and the base plate was pulled down and this inertia dish and base plate separation were made, because inertia dish and base shaft, base plate are clearance fit, the inertia dish can not receive any very short distance of axial displacement who influences, the inertia dish is connected together through stop screw with the arc backup pad after axial displacement very short distance, easy operation, safe and reliable; each idle movable inertia plate can be supported on the arc-shaped supporting plates according to the method, and each group of arc-shaped supporting plates are mutually independent, so that the structure has wide application range, can meet the structural design requirements of more levels of rotational inertia, and is not influenced in use safety.

2. The utility model discloses be provided with the limiting plate, can confirm the arc backup pad through the limiting plate to closing on the position that inertia dish removed, when arc backup pad and limiting plate looks butt, can be supported by the arc backup pad completely by the inertia dish of throw-off, simple to operate and efficiency are higher.

3. The utility model discloses be equipped with the tang on the side of well inertia dish, all be equipped with the mark groove on the outer circumference of basal disc and inertia dish, even be thrown off or reset certain or a plurality of inertia dish repeatedly, also can realize the accurate positioning between inertia dish and the basal disc fast through tang and mark groove, improved the positioning accuracy between basal disc and the inertia dish.

4. The utility model provides an inertia dish device can provide multiple inertia, can select different inertia dish combinations according to experimental requirement, and is with low costs, efficient.

The present invention will be described in further detail with reference to the drawings and specific examples.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a prior art inertia disk assembly configuration;

FIG. 2 is another prior art inertia disk configuration;

FIG. 3 is a schematic structural diagram of the base plate, the inertia plate and the base shaft of the present invention;

fig. 4 is a schematic structural diagram of the base of the present invention;

fig. 5 is a left side view of the inertia disc apparatus of the present invention;

FIG. 6 is a cross-sectional view taken at A-A of FIG. 5;

fig. 7 is a schematic view of the inertia disc device of the present invention when the inertia disc is disengaged.

The bearing comprises a graphic mark 1, a bearing end cover 2, a supporting bearing 3, a pressing plate 4, a cylindrical pin 5, a movable disc I, 6, a fixed disc I, 7, a movable disc II, 8, a rotating shaft I, 9, a stud, 10, a supporting flange 11, a bearing seat 12, a rotating shaft II, 13, a fixed disc II, 14, a movable disc III, 16, a movable disc IV, 16, a base shaft, 17, a key, 18, a connecting screw, 19, a base disc, 20, an inertia disc, 21, an arc-shaped supporting plate, 22, a limiting screw, 23, a base, 24, a limiting plate, 25, a compression screw, 26, a lifting ring I, 27, a protective cover, 28, a bearing, 29, a bearing support, 30 and a lifting ring II.

Detailed Description

In the description of the present invention, it should be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 6, which are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the scope of the present invention.

The utility model provides a multistage inertia's inertia dish device, mainly used need be through adding the test of simulation load detection product performance. Referring to fig. 3 to 6, the inertia disc device mainly includes a base 23, a base shaft 16, a base disc 19, an arc-shaped support plate 21, a connection screw 18, a compression screw 25, at least one inertia disc 20, and the like, the base disc 19 is connected to the middle of the base shaft 16 through a key 17 to realize synchronous rotation of the base disc 19 and the base shaft 16, the inertia disc 20 is inserted on the base shaft 16 and located on the side surface of the base disc 19, the inertia disc 20 is in clearance fit with the base shaft 16, the inertia disc 20 is in clearance fit with the base disc 19 and inserted together through at least two connection screws 18, and the inertia disc 20 and the base disc 19 can synchronously rotate through the connection screws 18; a bearing support 29 is fixed above the base 23 through screws and is positioned by a positioning pin, and two ends of the base shaft 16 are connected with the bearing support 29 through bearings 28. The base 23 is detachably connected with at least one group of arc support plates 21 for supporting the inertia discs 20 during non-working, the number of the groups of the arc support plates 21 is consistent with the number of the inertia discs 20, two arc support plates 21 in each group are symmetrically arranged at two circumferential sides of the corresponding inertia disc 20 by taking the base shaft 16 as a center, the inertia discs 20 are axially moved to correspond to the corresponding arc support plates 21, and then the two arc support plates are sequentially connected with the outer circumferential wall of the inertia disc 20 at the corresponding side through limiting screws 22. The distance between the arc-shaped support plate 21 and the corresponding inertia disc 20 which is not detached is greater than 2mm in the axial direction, that is, when a certain inertia disc 20 does not work, the inertia disc can be moved axially to be in the same plane with the arc-shaped support plate 21, and then the inertia disc is connected with the arc-shaped support plate 21 and the inertia disc 20 on the corresponding side through the limiting screw 22 sequentially penetrating through the outer circumferential wall of the arc-shaped support plate 21 and the outer circumferential wall of the inertia disc 20.

The distance from the arc-shaped support plate 21 to the center of the inertia disc 20 can be adjusted, in detail, please refer to fig. 4, the arc-shaped support plate 21 is arranged on two circumferential sides of the corresponding inertia disc 20, a strip-shaped hole is arranged on the arc-shaped support plate 21, a corresponding threaded hole is arranged on the base 23, and the compression screw 25 is in threaded connection with the threaded hole after passing through the strip-shaped hole. An arc line consistent with the radian of the outer circumference of the inertia disc 20 is arranged on one side, in the arc supporting plates 21, in contact with the outer circumference of the inertia disc 20, an arc line consistent with the radian of the outer circumference of the inertia disc 20 is arranged, a pair of limiting plates 24 used for limiting the moving positions of the arc supporting plates 21 towards the direction close to the inertia disc 20 are arranged on the base 23 among the arc supporting plates 21 arranged in groups, the extending direction of the limiting plates 24 is consistent with the extending direction of the base shaft 16, and the arc supporting plates 21 abutted to the limiting plates 24 can completely support the inertia disc 20. When one inertia disc 20 does not work, the inertia disc needs to fall on the arc-shaped support plate 21, and the arc-shaped support plate 21 is abutted to the limit plate 24; when the inertia disc 20 works, the arc-shaped supporting plate 21 is far away from the inertia disc 20, and the inertia disc 20 is prevented from contacting with the arc-shaped supporting plate 21 when rotating.

Note that, the side of the inertia disc 20 adjacent to the base disc 19 is provided with a spigot which is matched with the base disc 19, and the outer circumferences of the inertia disc 20 and the base disc 19 are both provided with mark scribes which can be aligned with each other along the axial direction. The accurate positioning between the inertia disc 20 and the base disc can be rapidly realized through the seam allowance and the marking line, and the positioning accuracy between the base disc and the inertia disc 20 is improved. For example, when installing the inertia disc 20, the marking line can be roughly aligned, a connecting screw 18 is inserted, the spigot of the inertia disc 20 is matched with the base disc 19, and finally the connecting screw 18 is installed and screwed.

Preferably, threaded holes for mounting the hanging rings are formed in the outer circumferential wall of the inertia disc 20, when the inertia disc 20 needs to be moved axially, the inertia disc 20 is rotated until the threaded holes face upward, the hanging rings are mounted in the threaded holes, and then the inertia disc 20 is separated and mounted by using a hoisting device, it should be noted that when the inertia disc 20 needs to be moved axially by means of the hoisting device, and then the arc-shaped support plate 21 can directly support the inertia disc 20, an included angle between the threaded holes for mounting the hanging rings on the inertia disc 20 and the threaded holes for mounting the limit screws 22 is 90 degrees.

Preferably, a protective cover 27 for protecting the inertia disc 20 and the base disc 19 is detachably connected to the base 23.

Hanging rings I26 are arranged on two symmetrical side surfaces of the base 23, and the lifting equipment is convenient for lifting the inertia disc device through the hanging rings I26. Rings II 30 are installed at the top of safety cover 27, and hoisting equipment makes things convenient for the removal of safety cover 27 through rings II 30.

In detail, referring to fig. 3, the inertia disc apparatus includes two inertia discs 20 respectively disposed on two sides of the base disc 19. When the inertia disc 20 is respectively in clearance fit with the base shaft 16 and the base disc 19, the clearance is larger than 1 mm. The device can realize four groups of inertia combinations on the premise of containing two inertia discs 20, which are respectively as follows: the base plate 19, the base plate 19+ one of the inertia plates 20, the base plate 19+ the other inertia plate 20, and the base plate 19+ the two inertia plates 20.

The method for releasing and resetting the inertia disc 20 in the inertia disc device comprises the following steps:

when a certain non-working inertia disc 20 needs to be disengaged, firstly, the limiting screw 22 on the arc-shaped supporting plate 21 is detached, the arc-shaped supporting plate 21 is moved towards the center of the inertia disc 20 to be abutted against the limiting plate 24, and then the arc-shaped supporting plate 21 is fixed by the compression screw 25; removing the connecting screw 18 between the inertia disc 20 and the base disc 19; the hanging ring is arranged in a threaded hole of the inertia disc 20, the inertia disc 20 needing to move is lifted by a crane to move outwards along the axial direction, so that the inertia disc 20 is completely separated from the base disc 19 until a limit screw 22 can sequentially penetrate through the arc-shaped support plate 21 and the outer circumferential wall of the inertia disc 20; two limit screws 22 are installed.

When the inertia disc 20 needs to be reset, the limiting screw 22 between the arc-shaped supporting plate 21 and the inertia disc 20 is detached, and the inertia disc 20 needing to be reset is lifted by a crane; the compression screws 25 for fixing the arc-shaped support plates 21 are removed, and the arc-shaped support plates 21 on the two sides move for a certain distance in the direction away from the inertia plate 20 and then are fixed; rotating the base plate 19 to substantially align the inertia plate 20 with the marked marks on the outer circumference of the base plate 19, and inserting a connecting bolt 18 (fixed angular position); and the inertia disc 20 continuously moves towards the direction of the base disc 19 and is sleeved on the spigot, the connecting screws 18 are installed and fastened, and the lifting ring is removed.

The inertia disc 20 may be made of high-quality carbon steel or alloy steel, and the blank may be forged or cast and used after normalizing. The inertia disc 20 is finished by conventional machining methods such as lathing, boring, etc.; the arc-shaped supporting plate 21 for installing the inertia plate 20 is formed by welding common carbon steel, and is simple to process and low in cost. Screws, pins and the like are standard parts, so that the purchase is convenient; assembly can be accomplished by a worker of ordinary skill. Therefore, the inertia disc device has high technical and economic feasibility.

It is right above that the utility model provides an inertia dish device of multistage inertia has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and concrete implementation are elucidated, and above-mentioned embodiment only is used for helping understanding the utility model discloses a method and core thought. It should be noted that any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the scope of the present invention for those skilled in the art.

Claims

1. An inertia disk apparatus having a plurality of stages of rotational inertia, comprising: the device comprises a base (23), a base shaft (16), a base disc (19), an arc-shaped supporting plate (21) and at least one inertia disc (20), wherein the base disc (19) is connected with the middle part of the base shaft (16) through a key (17) to realize synchronous rotation of the base disc (19) and the base shaft (16), the inertia disc (20) is arranged on the base shaft (16) in a penetrating manner and is positioned on the side surface of the base disc (19), the inertia disc (20) is in clearance fit with the base shaft (16), the inertia disc (20) is in clearance fit with the base disc (19) and is arranged together in a penetrating manner through at least two connecting screws (18), and the inertia disc (20) and the base disc (19) realize synchronous rotation through the connecting screws (18);

the base shaft (16) is arranged above the base (23) and is rotationally connected with the base, at least one group of arc-shaped supporting plates (21) used for supporting the inertia plate (20) in non-working time is detachably connected onto the base (23), two arc-shaped supporting plates (21) in each group are symmetrically arranged on two circumferential sides of the corresponding inertia plate (20) by taking the base shaft (16) as a center, the inertia plate (20) is axially moved to correspond to the corresponding arc-shaped supporting plates (21), and the limit screws (22) sequentially penetrate through one arc-shaped supporting plate (21) and the outer circumferential wall of the inertia plate (20) on the corresponding side to connect the arc-shaped supporting plate (21) and the outer circumferential wall of the inertia plate (20).

2. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: the bottom of arc backup pad (21) is equipped with the bar hole, is equipped with the screw hole that corresponds on base (23), and housing screw (25) pass through behind the bar hole with screw hole threaded connection.

3. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 2, wherein: be equipped with the pitch arc unanimous with the outer circumference radian of inertia dish (20) on the one side that contacts with inertia dish (20) outer circumference in arc backup pad (21), be equipped with a pair of limiting plate (24) that are used for injecing arc backup pad (21) to being close to inertia dish (20) direction shift position on base (23) between the arc backup pad (21) that set up in groups, the extending direction of limiting plate (24) is unanimous with the extending direction of base shaft (16), arc backup pad (21) with limiting plate (24) looks butt can support inertia dish (20) completely through stop screw (22).

4. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: the distance between the arc-shaped support plate (21) and the corresponding working inertia plate (20) along the extension direction of the base shaft (16) is more than 2 mm.

5. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1 or claim 4, wherein: the outer circumferential wall of the inertia disc (20) is provided with a threaded hole for installing a hanging ring.

6. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: the base (23) is detachably connected with a protective cover (27) used for protecting the inertia disc (20) and the base disc (19).

7. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: the side surface of the inertia disc (20) adjacent to the base disc (19) is provided with a spigot matched with the base disc (19), and the outer circumferential walls of the base disc (19) and the inertia disc (20) are provided with mark scribed lines which can be aligned with each other along the axial direction.

8. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: the upper part of the base (23) is provided with a groove which is communicated along the extending direction vertical to the base shaft (16), and the arc-shaped supporting plate (21) and the limiting plate (24) are arranged in the groove.

9. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: the number of the inertia discs (20) is two, and the inertia discs are respectively positioned at two sides of the base disc (19).