CN218808418U

CN218808418U - Chain tensioning device of chain type elevator

Info

Publication number: CN218808418U
Application number: CN202222780284.3U
Authority: CN
Inventors: 刘健
Original assignee: Xinyang Jiuhe Mining Co ltd
Current assignee: Xinyang Jiuhe Mining Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-04-07
Anticipated expiration: 2032-10-21

Abstract

The utility model provides a chain tensioning device of chain elevator, including setting up the tensioning assembly on first box lateral wall and setting up the elastic support subassembly on the second box lateral wall, the tensioning assembly is including setting up the flexible push rod on first box lateral wall, the delivery rod tip of flexible push rod is provided with the bearing frame, the bearing frame internal rotation is provided with the pivot, the inside that just is located the second box in the pivot is provided with the sprocket, be provided with the guide way on the second box, the pivot slides and sets up in the guide way, the elastic support subassembly is including setting up the fixing base on second box lateral wall, the inboard of fixing base is provided with flexible loop bar, the outside cover of flexible loop bar is equipped with the spring. The utility model discloses can adopt the elastic support device to effectively support the tensioning gear to cooperation tensioning assembly realizes adjusting the elasticity degree of chain, has improved chain and telescopic push rod life.

Description

Chain tensioning device of chain type elevator

Technical Field

The utility model relates to a chain elevator adjusting device technical field, concretely relates to chain elevator's chain overspeed device tensioner.

Background

The chain type hoister is relatively advanced vertical hoisting equipment in China, can be widely used for hoisting various bulk materials, is also commonly used when processing materials such as pearl sand, bentonite, zeolite and the like, is wound on an upper driving chain wheel and a lower direction-changing chain wheel by a moving part, drives a traction member and a hopper to do rotary circular motion under the action of a driving device, feeds the materials into each hopper from a lower feeding hole, and discharges the materials from a discharge hole under the action of gravity and centrifugal force when the materials are hoisted to an upper chain wheel; chain elevator's overspeed device tensioner is the important part of adjusting multiple type hoist tractor elasticity degree, plays key effect in chain elevator's normal operating, concerns the normal operating of equipment, if chain elevator's overspeed device tensioner became invalid, skids the normal production activity that influences chain elevator very easily. For the chain type hoister, the failure of the tensioning device means that the chain, the head pulley and the tail pulley are not normally meshed, the chain is easy to shake, fall off and even break in the operation process, the failure of hoisting materials is caused, and a machine can be damaged or workers can be injured by smashing in the serious condition. The existing tensioning device usually drives a shaft seat by screwing a screw rod, so as to drive a rotating shaft and a chain wheel on the rotating shaft to move up and down, which wastes time and labor and has low adjusting efficiency.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a chain overspeed device tensioner of chain lifting machine can adopt automatic telescopic tensioning set to realize carrying out quick adjustment, labour saving and time saving to the elasticity degree of chain.

In order to solve the technical problem, the utility model provides a chain overspeed device tensioner of chain elevator, chain elevator includes first box, the second box, chain and tensioning assembly, the chain sets up the inside at first box and second box, chain overspeed device tensioner is including setting up the tensioning assembly on first box lateral wall and setting up the elastic support subassembly on the second box lateral wall, tensioning assembly is including setting up the telescopic push rod on first box lateral wall, telescopic push rod's output pole tip is provided with the bearing frame, the bearing frame internal rotation is provided with the pivot, just be provided with the sprocket that is used for adjusting the elasticity degree of chain in the pivot and the inside that is located the second box, be provided with the guide way on the second box, the pivot slides and sets up in the guide way, the elastic support subassembly is including setting up the fixing base on second box lateral wall, the inboard of fixing base is provided with telescopic sleeve pole, telescopic sleeve pole's outside cover is equipped with the spring, telescopic sleeve pole's output pole tip is provided with the backup pad, just the both sides that are located the guide way on the lateral wall of second box all are provided with the fixed plate, all be provided with the slide rail on every fixed plate, all slide rail, the inside lateral wall of the vertical lateral wall of every fixed end of slide rail is provided with the connecting plate, the lower part of the telescopic sleeve pole is provided with the connecting plate, the bolt, the lower part of the fixing end of the connecting plate, the lower part of the telescopic sleeve pole, the fixing end of the bearing frame, the connecting plate, the fixing end of the bolt is provided with the fixing end of the telescopic sleeve pole, the fixing base, the fixing plate, the fixing end of the bolt.

The utility model discloses a tensioning assembly and elastic support assembly's cooperation can realize adjusting the tensioning degree of chain, specific implementation is, stretch out and the withdrawal through the output pole of flexible push rod, and then promote bearing frame area pivot and sprocket and carry out the up-and-down motion, and then realize through reciprocating of sprocket and realize the tensioning and relaxing to the chain, the best tensioning effect of chain has been reached, this moment, because compression spring's in the flexible loop bar recovery spring effect, the output pole of flexible loop bar can stretch out to pushing away the backup pad and upwards support the bearing frame, avoid the chain after the tensioning to bring decurrent pulling force for chain and flexible push rod because the action of gravity of sprocket and pivot, the life of chain and flexible loop bar has been prolonged greatly.

The telescopic push rod is a hydraulic telescopic rod or an electric telescopic rod, the first box body is connected with the second box body through a stud, threaded holes matched with the stud are formed in the first box body and the second box body, nuts are arranged on the upper side and the lower side of the stud and used for locking the first box body and the second box body, and sealing rings are arranged at the connecting positions of the first box body and the second box body, so that the phenomenon that materials spill out in the lifting process to cause material waste can be avoided.

In summary, compared with the prior art, the application has at least one of the following beneficial effects:

1. the bearing frame is convenient for install and fix the pivot, and then is convenient for install the sprocket on the pivot smoothly, and the effect of cooperation guide way and telescopic push rod can realize adjusting the tensioning degree of chain.

2. The effect of flexible loop bar and spring can be given ascending elastic support power of bearing frame, is convenient for eliminate the dead weight of sprocket and pivot and gives the extra pulling force that chain and flexible push rod brought, has improved the life of chain and flexible push rod to a certain extent.

3. Can realize dismantling of bearing frame and telescopic push rod through bolt and connecting plate and be connected, more convenient dismantles maintenance or change telescopic push rod.

4. The cooperation of slider and slide rail makes bearing and pivot and sprocket up-and-down motion individual more stable, is convenient for increase overspeed device tensioner and elastic support device job stabilization nature, is favorable to prolonging the life of whole device.

Drawings

Fig. 1 is a schematic structural view of a chain tensioner of the chain hoist of the present invention;

fig. 2 is a schematic structural view of the elevator when the telescopic push rod of the present invention is extended to tension the chain of the elevator;

FIG. 3 is an enlarged view of the structure at the position A of the present invention;

fig. 4 is an enlarged view of the structure at the position B in the present invention.

Description of reference numerals: 100. a first case; 200. a second case; 300. a tension assembly; 301. a telescopic push rod; 302. a bearing seat; 303. a rotating shaft; 304. a sprocket; 305. a guide groove; 306. a connecting plate; 307. a bolt; 308. a fixing plate; 309. a slide rail; 310. a slider; 311. a transverse plate; 312. a limiting plate; 400. An elastic support member; 401. a fixed seat; 402. a telescopic loop bar; 403. a spring; 404. a support plate; 500. a stud; 600. and a nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

As shown in fig. 1-4: the embodiment provides a chain tensioning device of a chain elevator, the chain elevator comprises a first box 100, a second box 200, a chain and a tensioning assembly 300, the chain is arranged in the first box and the second box, the tensioning assembly 300 is used for adjusting the tightness of the chain, the chain tensioning device comprises the tensioning assembly 300 arranged on the outer side wall of the first box 100 and an elastic supporting assembly 400 arranged on the outer side wall of the second box 200, the tensioning assembly 300 is used for adjusting the tensioning degree of the chain, the elastic supporting assembly 400 is used for supporting a chain wheel 304, a rotating shaft 303 and a bearing seat 302, the tensioning assembly 300 comprises a telescopic push rod 301 arranged on the outer side wall of the first box 100, the telescopic push rod 310 is arranged at the lower part of a transverse plate 311, a transverse plate 311 is welded on the outer side wall of the first box, a bearing seat 302 is arranged at the end part of an output rod of the telescopic push rod 301, the telescopic push rod 301 can drive the bearing seat 302 to move up and down, a rotating shaft 303 is rotatably arranged in the bearing seat 302, a rotating shaft 303 is arranged on the rotating shaft 303 and positioned in the second box 200, the inner side wall of the sliding guide groove 401 of the sliding guide sleeve of the sliding guide rod 401, the guide groove of the second box 200, the guide rod is arranged on the outer side wall of the guide sleeve 401, the end part of the output rod of the telescopic loop bar 402 is provided with a support plate 404, the support plate 404 should be made of a pressure-resistant, wear-resistant and skid-proof material, the outer side wall of the second box 200 and the two sides of the guide groove 305 are welded with fixing plates 308, each fixing plate 308 is provided with a slide rail 309, each slide rail 309 is provided with a slide block 310 in a sliding manner, the inner side wall of the vertical part of each slide block 310 is connected with the outer side wall of the bearing seat 302, the lower part of each slide rail 309 and the fixing plate 308 are provided with a limit plate 312, the limit plate 312 is used for limiting the movement of the slide block 310, the slide block 310 is matched with the slide rail 309, so that the vertical movement of the bearing seat 302 is more stable, the service life of the tensioning assembly 300 is prolonged, the working stability of the whole device is improved, the end part of the telescopic push rod 301 is welded with a connection plate 306, the connection plate 306 is arranged on the upper part of the outer side wall of the bearing seat 302 through a bolt 307, the purpose is to facilitate the connection and separation of the telescopic push rod 301 and the bearing seat 302, facilitate the maintenance of the telescopic push rod 301 in the later period, place the lower part of the bearing seat 302 above the supporting plate 404, the telescopic loop bar 402 comprises a telescopic end and a fixed end, a compression spring is arranged inside the fixed end of the telescopic loop bar 402, the telescopic link of the telescopic loop bar 402 can be locked into the fixed end under the action of external force, and can be restored to the original state under the action of the restoring elasticity of the compression spring after the external force is removed, so as to ensure that the supporting plate 404 is pushed to be contacted with the lower part of the bearing seat 302, the utility model can realize the adjustment of the tensioning degree of the chain through the cooperation of the tensioning assembly 300 and the elastic supporting assembly 400, and the specific realization mode is that the output rod of the telescopic push rod 301 extends out and retracts to further push the bearing seat 302 to drive the rotating shaft 303 and the chain wheel 304 to move up and down, and then realize through the reciprocating of sprocket 304 realizing the tensioning and relaxing to the chain, reached the best tensioning effect of chain, at this moment, because the elasticity effect that resumes of the compression spring in flexible loop bar 402, the output rod of flexible loop bar 402 can stretch out to push away backup pad 404 upwards and support bearing frame 302, avoids the chain after the tensioning to bring decurrent pulling force for chain and flexible push rod 301 because of the action of gravity of sprocket 304 and pivot 303, has prolonged the life of chain and flexible loop bar 402 greatly.

According to the utility model discloses a further embodiment, as shown in fig. 1 and fig. 2, telescopic rod 301 adopts hydraulic telescoping rod or electric telescopic handle, connects through double-screw bolt 500 between first box 100 and the second box 200, all sets up the screw hole with double-screw bolt 500 looks adaptation on first box 100 and the second box 200, and the upper and lower both sides of double-screw bolt 500 all are provided with nut 600, nut 600 is used for locking first box 100 and second box 200, and the junction of first box 100 and second box 200 is provided with the sealing washer, can avoid the material to spill at the promotion in-process like this, causes the waste of material.

The utility model discloses a use method:

firstly, the upper part of a chain is sleeved on a chain wheel at the end part of an output shaft of a motor at the upper part of a chain type elevator, then an output rod of a telescopic push rod 301 is started to retract to the shortest state, then the lower part of the chain is sleeved on the outer side of a chain wheel 304, then the output rod of the telescopic push rod 301 is started to extend to downwards push the chain wheel 304 at the upper parts of a connecting plate 306, a bearing seat 302, a rotating shaft 303 and the rotating shaft 303 to a proper state, and then tensioning adjustment of the chain can be realized, at the moment, a telescopic end of a telescopic loop bar 402 and a spring 403 can be compressed, under the action of the restoring elastic force of the compression spring inside the fixed end of the telescopic loop bar 402 and the compressed spring 403 outside the telescopic loop bar 402, an upward supporting force can be provided for the bearing seat 302, downward pulling force of the chain and the telescopic push rod 301 caused by the gravity action of the chain wheel 304 and the rotating shaft 303 can be avoided, and the service life of the chain and the telescopic loop bar 402 can be greatly prolonged. When the tensioning degree of chain is too tight needs relax, the output pole that starts telescopic push rod 301 retract to suitable height can, the utility model discloses an adopt elastic support device to effectively support the tensioning gear to cooperation tensioning assembly 300 realizes adjusting the elasticity degree of chain, has improved chain and telescopic push rod 301 life.

Furthermore, it should be noted that, unless otherwise explicitly stated or limited in the description of the present invention, the terms "mounted," "connected" and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The foregoing is 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 principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A chain tensioning device of chain type elevator, chain type elevator includes first box (100), second box (200), chain and tensioning assembly (300), the chain sets up in the inside of first box (100) and second box (200), chain tensioning device is including setting up tensioning assembly (300) on first box (100) lateral wall and setting up elastic support subassembly (400) on second box (200) lateral wall, its characterized in that: tensioning assembly (300) is including setting up flexible push rod (301) on first box (100) lateral wall, the output pole tip of flexible push rod (301) is provided with bearing frame (302), bearing frame (302) internal rotation is provided with pivot (303), the inside that just is located second box (200) in pivot (303) is provided with sprocket (304), be provided with guide way (305) on second box (200), pivot (303) slide to set up in guide way (305), elastic support subassembly (400) is including setting up fixing base (401) on second box (200) lateral wall, the inboard of fixing base (401) is provided with flexible loop bar (402), the outside cover of flexible loop bar (402) is equipped with spring (403), the output pole tip of flexible loop bar (402) is provided with backup pad (404).

2. The chain tensioner for chain hoists as set forth in claim 1, further comprising: the outer side wall of the second box body (200) is provided with fixing plates (308) on two sides of the guide groove (305), each fixing plate (308) is provided with a sliding rail (309), each sliding rail (309) is provided with a sliding block (310) in a sliding mode, and the inner side wall of the vertical portion of each sliding block (310) is connected with the outer side wall of the bearing seat (302).

3. The chain tensioner for chain hoists as set forth in claim 2, further comprising: the end part of the telescopic push rod (301) is provided with a connecting plate (306), and the connecting plate (306) is arranged on the upper part of the outer side wall of the bearing seat (302) through a bolt (307).

4. The chain tensioner for chain hoists as set forth in claim 3, further comprising: the lower portion of the bearing seat (302) is placed above the support plate (404).

5. Chain tensioner for chain hoists as in claim 1 or 4, characterized in that: the telescopic loop bar (402) comprises a telescopic end and a fixed end, and a compression spring is arranged inside the fixed end of the telescopic loop bar (402).

6. Chain tensioner for chain hoists as in claim 1 or 3, characterized in that: the telescopic push rod (301) is a hydraulic telescopic rod or an electric telescopic rod.

7. The chain tensioner for chain hoists as set forth in claim 1, characterized in that: the first box body (100) is connected with the second box body (200) through a stud (500), and nuts (600) are arranged on the upper side and the lower side of the stud (500).