CN214495449U - Lower walking driving device for crane - Google Patents
Lower walking driving device for crane Download PDFInfo
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- CN214495449U CN214495449U CN202121908141.5U CN202121908141U CN214495449U CN 214495449 U CN214495449 U CN 214495449U CN 202121908141 U CN202121908141 U CN 202121908141U CN 214495449 U CN214495449 U CN 214495449U
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Abstract
A lower walking driving device for a crane relates to the technical field of hoisting equipment, and comprises two suspension wheel sets correspondingly hung on the top of a track, a cross beam fixedly connected between the two suspension wheel sets, a box body, a driving mechanism and an adjusting mechanism, wherein the driving mechanism is arranged in the box body; the driving mechanism comprises a friction driving wheel and a balance arm, the middle part of the rod body of the balance arm is correspondingly hinged with the bottom in the box body through a hinge seat, and the two ends of the balance arm are respectively provided with the friction driving wheel of which the top of the wheel rim can be correspondingly in friction contact with the bottom of the track; one end of the box body is correspondingly hinged with the bottom of one suspension wheel set, and an adjusting mechanism for adjusting the friction force between the friction driving wheel and the track is arranged between the other end of the box body and the bottom of the other suspension wheel set; the utility model discloses compare with the structure of single friction pulley of tradition and improved the friction area of contact, avoid appearing the phenomenon of skidding, two friction drive wheels can effectively improve drive power simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the jacking equipment technique and specifically relates to a hoist is with walking drive down and is related to.
Background
The electric suspension crane is widely used in the lifting work of workshop articles, the traditional electric suspension crane adopts an upper driving mode, is driven by wheels on one side of a track, generates friction driving force by the self weight of the crane, and has the advantages that when the workshop track is deformed and cannot run, the upper driving is easy to slip and deviate, the abrasion to the track is large, and the lower running driving device can solve the problems; however, the existing lower walking drive device only has one friction drive wheel, and the phenomenon of slipping still easily occurs when the lifting weight is large, which is a problem to be solved by the technical personnel in the field.
Disclosure of Invention
In order to overcome the deficiency in the background art, the utility model discloses a hoist is with walking drive down.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a lower walking driving device for a crane comprises two suspension wheel sets correspondingly hung on the top of a track, a cross beam is fixedly connected between the two suspension wheel sets, and the lower walking driving device also comprises a box body, a driving mechanism and an adjusting mechanism, wherein the driving mechanism is arranged in the box body; the driving mechanism comprises a friction driving wheel and a balance arm, the middle part of the rod body of the balance arm is correspondingly hinged with the bottom in the box body through a hinge seat, and the two ends of the balance arm are respectively provided with the friction driving wheel of which the top of the wheel rim can be correspondingly in friction contact with the bottom of the track; one end of the box body is correspondingly hinged with the bottom of one suspension wheel set, and an adjusting mechanism for adjusting the friction force between the friction driving wheel and the track is arranged between the other end of the box body and the bottom of the other suspension wheel set.
Preferably, the adjusting mechanism comprises a lead screw correspondingly hinged to the bottom of the corresponding suspension wheel set, the lead screw movably penetrates through the corresponding end of the box body, an adjusting nut is screwed below the corresponding end of the lead screw rod body corresponding to the box body, and a spring is sleeved on the rod body between the lead screw corresponding to the box body and the adjusting nut.
Preferably, the box body is correspondingly and universally movably connected with the lead screw through a joint bearing.
Preferably, the two friction driving wheels are correspondingly connected in a synchronous transmission way through a synchronous shaft.
Preferably, the friction driving wheel is a hub motor.
Preferably, the two sides of the box body are respectively provided with a motor, and the two motors are respectively in corresponding driving connection with the two friction driving wheels.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a lower walking driving device for a crane, which has simple structure, can be designed in a modularized way and is convenient for assembly; the driving mechanism comprises friction driving wheels and a balance arm, the middle part of a rod body of the balance arm is correspondingly hinged with the bottom in the box body through a hinge seat, the two ends of the balance arm are respectively provided with friction driving wheels, the tops of wheel rims of the friction driving wheels can be correspondingly in friction contact with the bottom of a track, the two friction driving wheels are correspondingly in synchronous transmission connection through a synchronizing shaft, the two friction driving wheels can be ensured to synchronously run, and the friction driving wheels and the box body are not interfered with each other to influence each other;
in addition, the adjusting mechanism comprises a lead screw correspondingly hinged to the bottom of the corresponding suspension wheel set, the lead screw movably penetrates through the corresponding end of the box body, an adjusting nut is screwed below the corresponding end of the box body corresponding to the lead screw rod, a spring is sleeved on the rod body between the box body and the adjusting nut corresponding to the lead screw, the spring pushes the corresponding end of the box body through the adjusting nut, and therefore the friction force between the friction driving wheel and the track can be adjusted.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a track; 2. a suspension wheel set; 3. a box body; 4. an adjustment mechanism; 5. a friction drive wheel; 6. a balance arm; 7. a hinged seat; 8. an electric motor.
Detailed Description
The present invention will be explained in detail by the following embodiments, and it is to be understood that the present invention is intended to protect all technical improvements within the scope of the present invention, and in the description of the present invention, it is to be understood that if there are the terms "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, it is only corresponding to the drawings of the present application, and for the convenience of description of the present invention, it is not intended to indicate or imply that the device or element referred to must have a specific orientation.
With reference to fig. 1, a lower traveling driving device for a crane comprises two suspension wheel sets 2 correspondingly articulated with the top of a track 1, and a cross beam is fixedly connected between the two suspension wheel sets 2, namely the two suspension wheel sets 2 can be connected into a whole through the cross beam, and further comprises a box body 3, a driving mechanism and an adjusting mechanism 4, wherein the driving mechanism is arranged in the box body 3; the driving mechanism comprises friction driving wheels 5 and a balance arm 6, the middle part of the rod body of the balance arm 6 is correspondingly hinged with the inner bottom of the box body 3 through a hinge seat 7, the two ends of the balance arm 6 are respectively provided with the friction driving wheels 5 with the tops of the wheel rims capable of correspondingly making friction contact with the bottom of the track 1, the two friction driving wheels 5 are correspondingly and synchronously connected through a synchronizing shaft in a transmission manner, the two friction driving wheels 5 can be ensured to synchronously run, and the friction driving wheels 5 and the box body 3 are not interfered with each other and are not influenced by each other; according to the requirement, the friction driving wheels 5 are hub motors, namely can be directly driven by the hub motors, and have small occupied space and compact and reasonable layout, or the two sides of the box body 3 are both provided with the motors 8, and the two motors 8 are respectively in corresponding driving connection with the two friction driving wheels 5, so that the eccentric wear phenomenon caused by gravity center shift can be avoided;
one end of the box body 3 is correspondingly hinged with the bottom of one suspension wheel set 2, and an adjusting mechanism 4 for adjusting the friction force between the friction driving wheel 5 and the track 1 is arranged between the other end of the box body 3 and the bottom of the other suspension wheel set 2; according to needs, adjustment mechanism 4 contains and corresponds articulated lead screw with corresponding suspension wheelset 2 bottom, and this lead screw activity runs through the corresponding end of box 3, and the below that the lead screw pole body corresponds the corresponding end of box 3 has threaded connection with adjusting nut, and the pole body cover that the lead screw corresponds between box 3 and the adjusting nut is equipped with the spring, can push away the spring through adjusting nut promptly, and the spring pushes away the corresponding end of box 3, and then realizes adjusting the frictional force between friction drive wheel 5 and track 1, simultaneously box 3 corresponds universal swing joint with the lead screw through joint bearing, avoids box 3 and the unexpected card of lead screw to die and unable regulation.
Implement hoist with walking drive arrangement down, during the use through adjusting nut top push away the spring, the spring top pushes away the 3 corresponding ends of box, and then realizes adjusting the frictional force between friction drive wheel 5 and the track 1, guarantees that 5 rim tops of friction drive wheel can correspond frictional contact with track 1 bottom, 5 walks of friction drive wheel can drive and hang wheelset 2 and walk along track 1.
The details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a hoist is with walking drive device down, contains two and corresponds suspension wheelset (2) that articulate with track (1) top, and fastening connection has crossbeam, characterized by between two suspension wheelset (2): the device also comprises a box body (3), a driving mechanism and an adjusting mechanism (4), wherein the driving mechanism is arranged in the box body (3); the driving mechanism comprises a friction driving wheel (5) and a balance arm (6), the middle part of the rod body of the balance arm (6) is correspondingly hinged with the bottom in the box body (3) through a hinge seat (7), and the two ends of the balance arm (6) are respectively provided with the friction driving wheel (5) of which the top of the wheel rim can be correspondingly in friction contact with the bottom of the track (1); one end of the box body (3) is correspondingly hinged with the bottom of one suspension wheel set (2), and an adjusting mechanism (4) used for adjusting the friction force between the friction driving wheel (5) and the track (1) is arranged between the other end of the box body (3) and the bottom of the other suspension wheel set (2).
2. The lower travel drive unit for a crane according to claim 1, wherein: the adjusting mechanism (4) comprises a lead screw which is correspondingly hinged with the bottom of the corresponding suspension wheel set (2), the lead screw movably penetrates through the corresponding end of the box body (3), an adjusting nut is screwed below the corresponding end of the lead screw body of the box body (3), and a spring is sleeved on the lead screw body between the box body (3) and the adjusting nut.
3. The lower travel drive unit for a crane according to claim 2, wherein: the box body (3) is correspondingly and universally movably connected with the lead screw through a joint bearing.
4. The lower travel drive unit for a crane according to claim 1, wherein: the two friction driving wheels (5) are correspondingly and synchronously connected through a synchronous shaft in a transmission way.
5. The lower travel drive unit for a crane according to claim 4, wherein: the friction driving wheel (5) is a hub motor.
6. The lower travel drive unit for a crane according to claim 1, wherein: the two sides of the box body (3) are respectively provided with a motor (8), and the two motors (8) are respectively in corresponding driving connection with the two friction driving wheels (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121908141.5U CN214495449U (en) | 2021-08-16 | 2021-08-16 | Lower walking driving device for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121908141.5U CN214495449U (en) | 2021-08-16 | 2021-08-16 | Lower walking driving device for crane |
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| Publication Number | Publication Date |
|---|---|
| CN214495449U true CN214495449U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121908141.5U Active CN214495449U (en) | 2021-08-16 | 2021-08-16 | Lower walking driving device for crane |
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| CN (1) | CN214495449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009736A (en) * | 2022-05-26 | 2022-09-06 | 华能左权煤电有限责任公司 | Suspension lower driving mechanism |
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2021
- 2021-08-16 CN CN202121908141.5U patent/CN214495449U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009736A (en) * | 2022-05-26 | 2022-09-06 | 华能左权煤电有限责任公司 | Suspension lower driving mechanism |
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