CN211867671U

CN211867671U - Fan impeller dismounting device

Info

Publication number: CN211867671U
Application number: CN202020427850.0U
Authority: CN
Inventors: 符群安; 赵红俊; 宋海炤; 李淑伟
Original assignee: JIAXIAN ZHONGLIAN TIANGUANG CEMENT CO Ltd
Current assignee: JIAXIAN ZHONGLIAN TIANGUANG CEMENT CO Ltd
Priority date: 2020-03-28
Filing date: 2020-03-28
Publication date: 2020-11-06
Anticipated expiration: 2030-03-28

Abstract

The utility model relates to a fan wheel dismounting device, it includes the backup pad, be connected with the bolt in the backup pad, the middle part of backup pad is provided with middle guide arm, and the cover is equipped with the slider on the middle guide arm, is provided with positioner on the slider, seted up a plurality ofly on the middle guide arm along the length direction of middle guide arm, and with positioner complex locating hole, be connected with between slider and the backup pad and be used for driving the lever that the backup pad removed along middle guide arm length direction, the lever middle part is connected on the slider, and the one end of lever is connected in the backup pad. The utility model discloses have and guarantee that the backup pad is effective to fan wheel's dismantlement effect.

Description

Fan impeller dismounting device

Technical Field

The utility model belongs to the technical field of a fan wheel dismantles and specifically relates to a fan wheel dismounting device is related to.

Background

The centrifugal fans are used more in the production field, the overhaul workload is large, and particularly, the impeller needs to be disassembled for overhaul. Because of the structural characteristics of the centrifugal fan impeller, the tripod puller cannot be used, and if the impeller is forcibly detached by using external force, the impeller can be damaged.

The patent document with the publication number of CN205654609U discloses a fan impeller dismounting device, which comprises a support plate and a jacking bolt, wherein a jacking bolt hole is arranged at the center of the support plate, the jacking bolt hole is a screw hole, the support plate is symmetrically provided with two pulling bolt holes by taking the jacking bolt hole as a center, the jacking bolt is rotatably arranged in the jacking bolt hole, the position of the jacking bolt hole corresponds to the position of a motor shaft of a fan impeller, and the position of the pulling bolt hole corresponds to the position of an impeller screw thread of the fan impeller. The bolt penetrates through the tension bolt hole to be in threaded connection with the impeller screw thread on the fan impeller, and the jacking bolt is rotated to enable the end part of the jacking bolt to be abutted against the motor shaft position of the fan impeller, so that the supporting plate drives the fan impeller to be separated along the length direction of the motor shaft of the fan impeller, and the fan impeller is detached.

However, in the above structure, when the jacking bolt rotates in the jacking bolt hole, the force in the axial direction of the jacking bolt is large, so that the jacking bolt hole is easily abraded, and the support plate cannot detach the fan impeller.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fan wheel dismounting device, it has the dismantlement effect of guaranteeing that the backup pad is effective to fan wheel.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a fan impeller dismounting device, includes the backup pad, be connected with the bolt in the backup pad, the middle part of backup pad is provided with middle guide arm, and the cover is equipped with the slider on the middle guide arm, is provided with positioner on the slider, seted up a plurality ofly on the middle guide arm along middle guide arm length direction, and with positioner complex locating hole, be connected with the lever that is used for driving the backup pad to remove along middle guide arm length direction between slider and the backup pad, the lever middle part is connected on the slider, and the one end of lever is connected in the backup pad.

Through adopting above-mentioned technical scheme, during the use, the tip butt of middle guide arm is on fan wheel's motor shaft, bolt threaded connection in the backup pad is on fan wheel, rotate the lever, the tip and the backup pad of lever are connected, the backup pad can remove along the length direction of middle guide arm, make fan wheel also remove along the length direction of middle guide arm, and with positioner on the slider and the cooperation of the locating hole of difference, deviate from on fan wheel's motor shaft until fan wheel, thereby guaranteed the effective dismantlement to fan wheel.

The utility model discloses further set up to: the slider is fixedly provided with a pressing handle, the pressing handle is positioned at one end of the lever far away from the supporting plate, and a return spring is arranged between the pressing handle and the lever.

Through adopting above-mentioned technical scheme, set up on the slider and press the handle to being provided with reset spring between pressing handle and lever, reset spring can open pressing handle and lever, makes slider automatic movement to next locating hole department, thereby makes things convenient for the staff to carry out the backup pad that removes next time.

The utility model discloses further set up to: the positioning device comprises an insertion tongue and a pressure spring, one end of the insertion tongue is used for being matched in the positioning hole, the other end of the insertion tongue is abutted to the end portion of the pressure spring, and one end, far away from the insertion tongue, of the pressure spring is abutted to the sliding block.

By adopting the technical scheme, the inserting tongue is inserted into the positioning hole under the action force of the pressure spring, so that the inserting tongue can be effectively matched with the positioning hole, and the sliding block is prevented from slipping along the middle guide rod when being stressed.

The utility model discloses further set up to: the inserting tongue is provided with a first inclined surface, and the positioning hole is internally provided with a second inclined surface parallel to the first inclined surface.

Through adopting above-mentioned technical scheme, inclined plane one and two cooperations on inclined plane, when the slider received reset spring's effort, the slider area inserted the tongue and slided along the length direction of middle guide bar, and two pairs of inclined planes on inclined plane extrude to make inserted the tongue deviate from in the locating hole.

The utility model discloses further set up to: the opening rod is connected to the inserting tongue, the opening rod is rotatably connected to the inner portion of the sliding block, and one end of the opening rod is used for driving the inserting tongue to be pulled out from the positioning hole.

By adopting the technical scheme, the opening rod is connected to the inserting tongue, when a worker needs to move the sliding block to the initial position, one end, far away from the inserting tongue, of the opening rod is extruded, the opening rod is made to rotate, one end, close to the inserting tongue, of the opening rod pulls out the inserting tongue from the positioning hole, and therefore sliding can be achieved along the middle guide rod.

The utility model discloses further set up to: the positioning device has two, and two positioning device sets up relatively.

Through adopting above-mentioned technical scheme, positioner is provided with two and two positioner set up relatively, and two positioner can make the slider connect more stably on middle guide arm when acting on middle guide arm simultaneously.

The utility model discloses further set up to: the middle part of the supporting plate is provided with a guide hole, the guide hole is in sliding fit with the sliding block, and the sliding directions of the supporting plate and the sliding block are parallel to the length direction of the middle guide rod.

Through adopting above-mentioned technical scheme, the guiding hole is seted up at the middle part of backup pad, and guiding hole sliding fit is on the slider, when the backup pad is connected on fan wheel, can make the length direction of middle guide bar keep parallel with fan wheel's motor shaft.

The utility model discloses further set up to: the middle guide rod is in a quadrangular prism shape.

By adopting the technical scheme, the middle guide rod is arranged to be quadrangular, the positioning holes can be conveniently formed in the two opposite surfaces of the middle guide rod, the positioning devices are symmetrical in position on the middle guide rod, and the stress of the sliding block is uniform.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the end part of the middle guide rod is abutted against a motor shaft of the fan impeller, the bolt on the support plate is in threaded connection with the fan impeller, the lever is rotated, the end part of the lever is connected with the support plate, the support plate can move along the length direction of the middle guide rod, so that the fan impeller also moves along the length direction of the middle guide rod, and the positioning devices on the sliding blocks are matched with different positioning holes until the fan impeller is separated from the motor shaft of the fan impeller, so that the effective disassembly of the fan impeller is ensured;

2. the pressing handle is arranged on the sliding block, the return spring is arranged between the pressing handle and the lever, and the return spring can open the pressing handle and the lever to enable the sliding block to automatically move to the next positioning hole, so that a worker can conveniently move the supporting plate for the next time;

3. the opening rod is connected to the insertion tongue, when the sliding block needs to be moved to the initial position by a worker, one end, far away from the insertion tongue, of the opening rod is squeezed, the opening rod is made to rotate, one end, close to the insertion tongue, of the opening rod pulls out the insertion tongue from the positioning hole, and therefore sliding can be achieved along the middle guide rod.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the mounting structure of the positioning device.

In the figure, 1, a middle guide rod; 11. positioning holes; 111. a second inclined surface; 2. a slider; 21. pressing the handle; 3. a positioning device; 31. inserting a tongue; 32. a pressure spring; 33. a first inclined surface; 4. a support plate; 41. a guide hole; 5. a lever; 6. a bolt; 7. a return spring; 8. an opening lever; 9. and (4) hanging hooks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the fan impeller detaching device disclosed by the present invention, the device comprises a middle guide rod 1, the middle guide rod 1 is quadrangular, the middle guide rod 1 is disposed along the length direction of the motor shaft of the fan impeller, so that one end of the middle guide rod 1 abuts against the end of the motor shaft of the fan impeller, a slider 2 is sleeved on the middle guide rod 1, the slider 2 is slidably fitted on the middle guide rod 1, a positioning device 3 capable of being fixed on the middle guide rod 1 is disposed on the slider 2, a support plate 4 is mounted on the slider 2, a guide hole 41 is disposed in the middle of the support plate 4, the guide hole 41 is slidably fitted with the slider 2, the sliding direction of the support plate 4 on the slider 2 is parallel to the length direction of the middle guide rod 1, a lever 5 is disposed between the support plate 4 and the slider 2, the middle of the lever 5 is connected on the slider 2, the lever 5 is rotatably connected on the support plate 4 from, enabling the operator to move the slide 2 along the length of the intermediate guide bar 1 by means of the lever 5. Two bolts 6 are arranged on the supporting plate 4, the two bolts 6 are positioned on two sides of the guide hole 41, the bolts 6 are connected to the supporting plate 4 in a penetrating mode, the bolts 6 are positioned on the supporting plate 4 and fixed along the length direction of the bolts 6, the end portions of the bolts 6 are used for being connected to the fan impeller in a threaded mode, and when the supporting plate 4 moves along the length direction of the middle guide rod 1, the fan impeller is taken down from a motor shaft of the fan impeller through the bolts 6.

Referring to fig. 2, a plurality of positioning holes 11 are formed in the middle guide bar 1 in the length direction, two positioning devices 3 are provided, two positioning devices 3 are arranged opposite to each other, two rows of positioning holes 11 are provided, the two positioning devices 3 are respectively matched with one row of positioning holes 11, and in the process that the positioning devices 3 slide along the length direction of the middle guide bar 1, the two positioning devices 3 are respectively matched with one positioning hole 11 in the two rows of positioning holes 11. The positioning device 3 comprises an insertion tongue 31 and a pressure spring 32, the insertion tongue 31 is in sliding fit with the sliding block 2, one end of the insertion tongue 31 is used for being inserted into the positioning hole 11, a first inclined surface 33 is formed in the insertion tongue 31, a second inclined surface 111 is arranged in the positioning hole 11, the second inclined surface 111 is located at one end, far away from the middle guide rod 1, of the positioning hole 11 and abuts against the motor shaft of the fan impeller, the first inclined surface 33 is parallel to the second inclined surface 111, one end of the pressure spring 32 abuts against the sliding block 2, the other end of the pressure spring 32 abuts against the insertion tongue 31, and the insertion tongue 31 is driven to be inserted into. When the slider 2 is slid along the longitudinal direction of the intermediate guide bar 1, the first inclined surface 33 is pressed by the second inclined surface 111, so that the tongue 31 is disengaged from the positioning hole 11, and the slider 2 is moved to the other positioning hole 11.

Referring to fig. 1, a pressing handle 21 is arranged on the slider 2, the pressing handle 21 is integrally arranged on the slider 2, the length direction of the pressing handle 21 faces to one end of the lever 5 far away from the end connected with the support plate 4, and a return spring 7 is arranged between the pressing handle 21 and the lever 5. When the fan is used by a worker, the distance between the lever 5 and the pressing handle 21 is reduced, one end of the lever 5, which is far away from the pressing handle 21, moves the support plate 4 along the direction of the middle guide rod 1, when the lever 5 is loosened, the acting force of the return spring 7 enables the pressing handle 21 and the lever 5 to be opened, so that the support plate 4 is connected to a fan impeller through the bolt 6, the sliding block 2 moves along the length direction of the middle guide rod 1, and the positioning device 3 on the sliding block 2 moves into the next positioning hole 11.

Referring to fig. 2, in order to enable the slider 2 to conveniently slide to the initial position along the middle guide rod 1 in the reverse direction, an opening rod 8 is arranged inside the slider 2, the middle part of the opening rod 8 is rotatably connected to the slider 2, one end of the opening rod 8 extends out of the slider 2, the other end of the opening rod 8 extends towards the direction of the insertion tongue 31, a hook 9 is arranged on the insertion tongue 31, the hook 9 is used for being hung at the end part of the opening rod 8, when a worker squeezes the opening rod 8, the opening rod 8 rotates, one end of the opening rod 8 close to the insertion tongue 31 pulls out the insertion tongue 31 from the positioning hole 11, and therefore the slider 2 can freely slide towards the two ends of the middle guide rod.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a fan wheel dismounting device, includes backup pad (4), be connected with bolt (6) on backup pad (4), its characterized in that: the middle part of backup pad (4) is provided with middle guide arm (1), and the cover is equipped with slider (2) on middle guide arm (1), is provided with positioner (3) on slider (2), seted up a plurality ofly on middle guide arm (1) along the length direction of middle guide arm (1), and with positioner (3) complex locating hole (11), be connected with between slider (2) and backup pad (4) and be used for driving lever (5) that backup pad (4) removed along middle guide arm (1) length direction, lever (5) middle part is connected on slider (2), and the one end of lever (5) is connected on backup pad (4).

2. A fan impeller dismounting device according to claim 1, characterized in that: the pressing handle (21) is fixedly arranged on the sliding block (2), the pressing handle (21) is positioned at one end, far away from the lever (5), connected with the supporting plate (4), and a return spring (7) is arranged between the pressing handle (21) and the lever (5).

3. A fan impeller dismounting device according to claim 2, characterized in that: the positioning device (3) comprises an insertion tongue (31) and a pressure spring (32), one end of the insertion tongue (31) is used for being matched with the positioning hole (11), the other end of the insertion tongue is abutted to the end portion of the pressure spring (32), and one end, far away from the insertion tongue (31), of the pressure spring (32) is abutted to the sliding block (2).

4. A fan impeller dismounting device according to claim 3, characterized in that: the inserting tongue (31) is provided with a first inclined surface (33), and the positioning hole (11) is internally provided with a second inclined surface (111) parallel to the first inclined surface (33).

5. A fan wheel dismounting device according to claim 3 or 4, characterised in that: the opening rod (8) is connected to the inserting tongue (31), the opening rod (8) is rotatably connected to the inner portion of the sliding block (2), and one end of the opening rod (8) is used for driving the inserting tongue (31) to be pulled out from the positioning hole (11).

6. A fan impeller dismounting device according to claim 1, characterized in that: the number of the positioning devices (3) is two, and the two positioning devices (3) are arranged oppositely.

7. A fan impeller dismounting device according to claim 1, characterized in that: a guide hole (41) is formed in the middle of the supporting plate (4), the guide hole (41) is in sliding fit with the sliding block (2), and the sliding directions of the supporting plate (4) and the sliding block (2) are parallel to the length direction of the middle guide rod (1).

8. A fan impeller dismounting device according to claim 1, characterized in that: the middle guide rod (1) is in a quadrangular prism shape.