CN211423269U

CN211423269U - Inertia disc device with multi-stage rotational inertia

Info

Publication number: CN211423269U
Application number: CN201921856780.4U
Authority: CN
Inventors: 孙丽; 赵小平; 燕昭阳; 张瑶瑶
Original assignee: Cama Luoyang Electromechanic Co Ltd
Current assignee: Cama Luoyang Electromechanic Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-09-04
Anticipated expiration: 2029-10-31

Abstract

The inertia disc device with the multi-stage rotational inertia comprises a main shaft and a plurality of inertia discs, wherein one of the inertia discs is a fixed disc, the other inertia discs are movable discs, the fixed disc can synchronously rotate along with the main shaft, the movable discs are positioned on the side surfaces of the fixed disc, and a plurality of connecting bolts penetrate through the movable discs and the fixed disc to enable the movable discs and the fixed disc to synchronously rotate; still the cover is equipped with and supports the cover on the main shaft, support the cover and be located the movable disk and keep away from the one side of fixed disk, support the cover and for the installation base face fixed mounting of inertia dish device, the movable disk can be lifted by crane and move between fixed disk and support cover after connecting bolt dismantles, the one end that supports the cover and is close to the fixed disk is equipped with the outer periphery that supplies the movable disk cover to establish, the one end that supports the cover and keep away from the fixed disk is equipped with the support flange, fixing bolt is worn to be equipped with in the cooperation on support flange and the movable disk, with the displacement between restriction movable disk and the support cover, avoid supporting the movable disk rotation on the cover and produce extra inertia.

Description

Inertia disc device with multi-stage rotational inertia

Technical Field

The utility model relates to an inertia dish device field especially relates to an inertia dish device of multistage inertia.

Background

The inertia disk device is an inertia body mounted on a spindle, and when a plurality of inertia bodies are required to be mounted on the spindle to form a multi-stage rotational inertia, the inertia body is usually set as an inertia disk, that is, the inertia disk device is a multi-stage rotational inertia. In the existing multi-stage inertia moment inertia disc device, one is to sleeve a plurality of inertia discs on a main shaft and directly push the inertia discs from two ends, such as an in-shaft inertia disc loading device disclosed in chinese patent CN201378104Y, when the device is used, only different numbers of inertia discs need to be respectively installed on the main shaft and the main shaft is driven to rotate in several times, but since all the inertia discs need to be directly pushed from two ends, the number of the inertia discs is adjusted at each time, that is, when the inertia discs are disassembled or installed, the whole testing device needs to be completely disassembled and then re-installed, the specific operation is very inconvenient, and the use efficiency of the device is seriously affected.

In order to avoid the problem that the number of inertia discs is too complex and the efficiency is affected when the number of the inertia discs is adjusted, another inertia disc device with multi-stage rotational inertia is provided in the prior art, and the structure of the inertia disc device is that one inertia disc is directly fixed and sleeved on a main shaft to serve as a fixed disc capable of rotating synchronously with the main shaft, the other inertia discs are sleeved on the main shaft through respective bearings to serve as movable discs which cannot be directly driven to rotate by the main shaft, and then the movable discs and the fixed disc can simultaneously penetrate through connecting pieces such as bolts and the like, so that the movable discs and the fixed disc can rotate synchronously. However, since the device adopts a plurality of bearings to install a plurality of movable disks in a matching way, on one hand, the structure of the device is complex, the cost is high, on the other hand, even if the connecting bolt is disassembled in practical use, the movable disks can not synchronously rotate with the fixed disks, but the movable disks after the connecting bolt is disassembled still have rotation phenomenon in the rotation process of the main shaft due to the action of a plurality of factors such as vibration, friction and the like in the rotation process of the main shaft, and the rotation is random rotation with uncontrollable rotation time, rotation number and rotation speed, which is caused by unavoidable manufacturing errors of the device and unavoidable errors in the operating environment, so that the movable disks which can not rotate on the main shaft in theory through the bearing empty sleeves can randomly rotate, and because the random uncontrollable rotation of the movable disks which do not need to rotate per se, uncontrollable additional rotational inertia can be generated randomly in the operation of the inertia device, and even if the random rotation phenomenon of the movable disc is very slight and the generated additional rotational inertia is very small, the operation precision of the inertia device can be seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multistage inertia's inertia dish device can enough avoid too complicated, influence efficiency when adjusting the quantity of inertia dish, also can avoid not needing the inertia dish of pivoted to produce pivoted phenomenon at random, satisfies multistage inertia's inertia dish device's required precision.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the inertia disc device comprises a main shaft and a plurality of inertia discs, wherein the inertia discs are sleeved at preset positions on the main shaft, one of the inertia discs is a fixed disc, the other inertia discs are movable discs, the fixed disc and the main shaft are connected through a key to enable the fixed disc to synchronously rotate along with the main shaft, the movable discs are positioned on the side surfaces of the fixed disc, a plurality of connecting bolts are arranged on the movable discs and the fixed disc in a penetrating mode in a matching mode, the connecting bolts are all arranged in parallel with the main shaft and are evenly distributed at intervals along the circumferential direction of the main shaft, and the movable discs and the fixed disc can synchronously rotate through the matching of the connecting bolts;

still the cover is equipped with and supports the cover on the main shaft, support the cover and be located the movable disc and keep away from the one side of fixed disk, support the cover for the installation base face fixed mounting of inertia dish device, lifting ring screw hole has been seted up on the outer circumference of movable disc, make the movable disc can lift by crane and along the axial motion of main shaft between fixed disk and support cover through lifting ring screw after connecting bolt dismantles, it is equipped with the outer periphery that can supply to support all movable discs between cover and the fixed disk to overlap in proper order to support the cover to be close to the one end of fixed disk, it is equipped with the support flange to support the cover one end of keeping away from the fixed disk, fixing bolt is worn to be equipped with in cooperation on support flange and the movable disc.

Preferably, the movable disc is positioned at two sides of the fixed disc.

Preferably, the number of the movable disks respectively positioned at the two sides of the fixed disk is the same.

Preferably, the outer circumferences of the movable disc and the fixed disc are both provided with positioning scribed lines, and the positioning scribed lines extend to the end faces of the movable disc and the fixed disc along the radial direction of the movable disc and the fixed disc.

Preferably, the support sleeve is fixedly connected with a bearing seat for mounting the main shaft.

Preferably, the fixing bolt is a stud, and a through hole for penetrating the stud is correspondingly formed in the supporting flange and the movable plate.

Preferably, the connecting bolt is a countersunk head bolt, a threaded hole for screwing the countersunk head bolt is formed in the fixed disk, and through holes for penetrating the countersunk head bolt are correspondingly formed in all the movable disks positioned on the same side of the fixed disk.

Preferably, the plurality of countersunk head bolts are distributed on two reference circles with different diameters and are located on the side of the fixing bolt far away from the main shaft.

Preferably, the plurality of countersunk head bolts are the same in size and weight, and the plurality of countersunk head bolts are screwed into the fixed plate at the same distance.

Preferably, the movable disc and the fixed disc are provided with two conical positioning pins in a penetrating mode in a matching mode, the axes of the conical positioning pins are parallel to the axis of the main shaft, and the two conical positioning pins are symmetrical with respect to the center of the main shaft.

According to the technical scheme, the beneficial effects of the utility model are that:

the utility model provides an inertia dish device of multistage inertia, through establishing the support cover on the main shaft, thereby when making the quantity that needs to inertia dish adjust, only need with the activity dish hoist and mount to the support cover can, the operation that needs to take during it only carries out dismouting adjustment to connecting pieces such as connecting bolt and eyebolt, again by equipment such as overhead traveling crane cooperation to the activity dish all very short lifts by distance and time, concrete easy and simple to handle safety, can avoid too complicated when adjusting the quantity of inertia dish among the prior art, influence the problem of efficiency, guarantee the high-efficient operation of inertia dish device; and after the movable disc is hoisted on the support sleeve, the movable disc can be matched with the fixed bolt through the support flange, so that the movable disc is relatively and fixedly connected with the support flange, namely the support sleeve, and the support sleeve is fixedly arranged relative to the mounting base surface of the inertia disc device, therefore, all the movable discs sleeved on the support sleeve can be ensured not to rotate any more, the phenomenon that inertia discs which do not need to rotate in the prior art randomly rotate can be thoroughly avoided, the randomly generated additional rotational inertia in the operation process is completely eliminated, the precision requirement of the inertia disc device of the multistage rotational inertia is met, a bearing is not required to be arranged on a main shaft, the structure of the device is simplified, the cost is reduced, and the requirements of the operation efficiency and the precision of the disc device of the multistage rotational inertia can be simultaneously met.

Drawings

FIG. 1 is a cross-sectional view of an inertia disk apparatus, wherein all inertia disks are sleeved on a spindle;

FIG. 2 is a cross-sectional view of an inertia disk apparatus with a portion of a movable disk mounted on a spindle;

fig. 3 is a sectional view of an inertia disk apparatus in which only a fixed disk is attached to a spindle.

The labels in the figure are: 1. the device comprises a main shaft, 2, a fixed disc, 3, a movable disc, 4, a key, 5, a connecting bolt, 6, a supporting sleeve, 7, a lifting ring screw hole, 8, a lifting ring screw, 9, a supporting flange, 10, a fixing bolt, 11 and a bearing seat.

Detailed Description

Referring to the drawings, the specific embodiments are as follows:

the utility model provides an inertia dish device of multistage inertia, including main shaft 1 and a plurality of inertia dish that is used for the cover to establish preset position on main shaft 1, one of a plurality of inertia dish is fixed disk 2, all the other are activity dish 3, fixed disk 2 makes fixed disk 2 can rotate along with main shaft 1 synchronization with main shaft 1 through key 4 connection, activity dish 3 is located fixed disk 2 side, a plurality of connecting bolt 5 are worn to be equipped with in the cooperation on activity dish 3 and the fixed disk 2, a plurality of connecting bolt 5 all with main shaft 1 parallel arrangement and along main shaft 1's even interval distribution in circumference, make activity dish 3 can rotate with fixed disk 2 synchronization through the cooperation of a plurality of connecting bolt 5.

The main shaft 1 is further sleeved with a support sleeve 6, the support sleeve 6 is positioned on one side of the movable disc 3 far away from the fixed disc 2, and the support sleeve 6 is fixedly installed relative to an installation base surface of the inertia disc device, in the embodiment, the support sleeve 6 is sleeved on the main shaft 1, a gap of not less than 0.5mm is formed between an inner hole of the support sleeve 6 and the outer circumference of the main shaft 1, a lifting ring screw hole 7 is formed in the outer circumference of the movable disc 3, so that the movable disc 3 can be lifted by a lifting ring screw 8 after the connecting bolt 5 is disassembled and can move between the fixed disc 2 and the support sleeve 6 along the axial direction of the main shaft 1, one end of the support sleeve 6 close to the fixed disc 2 is provided with an outer circumference surface which all the movable discs 3 between the support sleeve 6 and the fixed disc 2 can be sequentially sleeved, when the number of inertia discs needs to be adjusted, only the movable disc 3 needs to be lifted to the support sleeve 6, and only needs to be adopted, and then the movable disc 3 is lifted by the cooperation of equipment such as a crown block and the like with extremely short distance and time, the specific operation is simple, convenient and safe, and the high-efficiency operation of the inertia disc device can be ensured.

Support cover 6 and keep away from the one end of fixed disk 2 and be equipped with support flange 9, support flange 9 and activity dish 3 go up the cooperation and wear to be equipped with fixing bolt 10, support the displacement between cover all activity dishes 3 and the support cover 6 of establishing on the cover 6 with the restriction, just can guarantee to support and overlap all activity dishes 3 of establishing on 6 and can not take place the rotation again, can thoroughly avoid not needing the inertia dish of pivoted to produce pivoted phenomenon at random, eliminate the extra inertia that moves the in-process and produce at random completely, satisfy the required precision of the inertia dish device of multistage inertia.

As shown in fig. 1-3, in the present embodiment, a fixed tray 2 and four movable trays 3 are used, and the four movable trays 3 are located on two sides of the fixed tray 2 and are divided into two groups symmetrically arranged. Connecting bolt 5 of wearing to establish on fixed disk 2 and activity dish 3 adopts the countersunk head bolt, offers the screw hole that is used for twisting to establish the countersunk head bolt on fixed disk 2, all corresponds on all activity dishes 3 that are located 2 homonymies of fixed disk and offers the through-hole that is used for wearing to establish the countersunk head bolt, and the countersunk head bolt twists respectively from the both sides of fixed disk 2, makes the dismantlement of countersunk head bolt and the atress condition all more reasonable. In order to ensure the running precision of the device, in the embodiment, the plurality of countersunk head bolts are distributed on the reference circles with two different diameters, the size and the weight of the plurality of countersunk head bolts are the same, and the distances for screwing the plurality of countersunk head bolts into the fixed disk 2 are also the same, so that the running precision of the moving device is prevented from being influenced by inertia errors caused by position errors of the countersunk head bolts and the like. In order to further improve the overall precision of the device, two conical positioning pins can be arranged on the movable disc 3 and the fixed disc 2 in a penetrating mode in a matching mode, the axes of the conical positioning pins are parallel to the axis of the main shaft 1, and the two conical positioning pins are symmetrical about the center of the main shaft 1, so that the movable disc 3 can be positioned more accurately.

In the embodiment, the support sleeve 6 is fixedly connected with the bearing seat 11 for mounting the spindle 1, so that the support sleeve 6 is fixedly mounted relative to the mounting base surface of the inertia disc device, in the embodiment, the support sleeve 6 and the support flange 9 are of an integrally formed structure, that is, the support sleeve 6 and the support flange 9 are integrally processed into a whole part during processing; in this embodiment, the fixing bolt 10 is a stud, a through hole for penetrating the stud is correspondingly formed in each of the support flange 9 and the movable plate 3, after the movable plate 3 is hoisted to the support sleeve 6, the movable plate 3 can be conveniently fixed and disassembled by screwing or disassembling the stud, fig. 2 illustrates that a pair of movable plates 3 is installed on the support sleeve 6 relative to fig. 1, fig. 3 illustrates that the remaining pair of movable plates 3 are also installed on the support sleeve 6 relative to fig. 2, and the device is adjusted between three states of fig. 1, fig. 2 and fig. 3, so that the operation of the three-level rotational inertia can be performed, and the number of inertia plates can be easily and quickly adjusted at any time in the operation process, and meanwhile, it is ensured that the inertia plates which do not need to rotate do not influence the operation precision. In the process of repeatedly disassembling and assembling the movable disc 3, in order to ensure that the relative position of the movable disc 3 mounted on the main shaft 1 does not change in repeated disassembling and assembling, positioning scribed lines are arranged on the outer circumferences of the movable disc 3 and the fixed disc 2 in the embodiment, and extend to the end faces of the movable disc 3 and the fixed disc 2 along the radial directions of the movable disc 3 and the fixed disc 2, so that an operator can calibrate and adjust the position of the movable disc 3 through the positioning scribed lines, and the integral rotational inertia of the device is ensured to be kept uniform and accurate in a repeated adjusting process.

Claims

1. The utility model provides an inertia dish device of multistage inertia that rotates, includes main shaft (1) and a plurality of inertia dish that are used for the cover to establish preset position on main shaft (1), its characterized in that: one of the inertia discs is a fixed disc (2), the rest inertia discs are movable discs (3), the fixed disc (2) is connected with the main shaft (1) through a key (4) to enable the fixed disc (2) to synchronously rotate along with the main shaft (1), the movable discs (3) are located on the side faces of the fixed disc (2), a plurality of connecting bolts (5) are arranged on the movable disc (3) and the fixed disc (2) in a penetrating mode in a matched mode, the connecting bolts (5) are all arranged in parallel with the main shaft (1) and are evenly distributed at intervals along the circumferential direction of the main shaft (1), and the movable disc (3) and the fixed disc (2) can synchronously rotate through the matching of the connecting bolts (5);

the main shaft (1) is further sleeved with a supporting sleeve (6), the supporting sleeve (6) is positioned on one side, away from the fixed disc (2), of the movable disc (3), the supporting sleeve (6) is fixedly installed relative to an installation base surface of the inertia disc device, a lifting ring screw hole (7) is formed in the outer circumference of the movable disc (3), the movable disc (3) can be lifted through a lifting ring screw (8) after the connecting bolt (5) is disassembled and moves along the axial direction of the main shaft (1) between the fixed disc (2) and the supporting sleeve (6), the outer circumferential surface, which can be sequentially sleeved with all the movable discs (3) between the supporting sleeve (6) and the fixed disc (2), is arranged at one end, away from the fixed disc (2), of the supporting sleeve (6) and provided with a supporting flange (9), and fixing bolts (10) are arranged on the supporting flange (9) and the movable disc (3) in a matched mode in a penetrating mode, so as to limit the displacement between all the movable discs (3) sleeved on the supporting sleeve (6) and the supporting sleeve (6).

2. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: the movable disc (3) is positioned at two sides of the fixed disc (2).

3. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 2, wherein: the number of the movable discs (3) respectively positioned at the two sides of the fixed disc (2) is the same.

4. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: the outer circumferences of the movable disc (3) and the fixed disc (2) are provided with positioning scribed lines, and the positioning scribed lines radially extend to the end faces of the movable disc (3) and the fixed disc (2) along the movable disc (3) and the fixed disc (2).

5. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: the support sleeve (6) is fixedly connected with a bearing seat (11) used for mounting the main shaft (1).

6. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: the fixing bolt (10) is a stud, and the supporting flange (9) and the movable disc (3) are correspondingly provided with a through hole for penetrating through the stud.

7. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: connecting bolt (5) are countersunk head bolts, offer the screw hole that is used for twisting to establish countersunk head bolt on fixed disk (2), all correspond on all movable dish (3) that are located fixed disk (2) homonymy and offer the through-hole that is used for wearing to establish countersunk head bolt.

8. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 7, wherein: a plurality of countersunk head bolts are distributed on two reference circles with different diameters and are positioned on one side, far away from the main shaft (1), of the fixing bolt (10).

9. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 7, wherein: the sizes and the weights of the plurality of countersunk head bolts are the same, and the distances for screwing the plurality of countersunk head bolts into the fixed disc (2) are also the same.

10. An inertia disk assembly having a multi-level rotational inertia as claimed in claim 1, wherein: two conical positioning pins are arranged on the movable disc (3) and the fixed disc (2) in a penetrating mode in a matching mode, the axes of the conical positioning pins are parallel to the axis of the main shaft (1), and the two conical positioning pins are centrosymmetric with respect to the main shaft (1).