CN213231306U - Hoisting hand chain block for electromechanical construction - Google Patents
Hoisting hand chain block for electromechanical construction Download PDFInfo
- Publication number
- CN213231306U CN213231306U CN202021844246.4U CN202021844246U CN213231306U CN 213231306 U CN213231306 U CN 213231306U CN 202021844246 U CN202021844246 U CN 202021844246U CN 213231306 U CN213231306 U CN 213231306U
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- gear
- shaft
- tooth
- sleeve
- hoisting
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Abstract
The utility model discloses a hoisting chain block for electromechanical construction, which comprises a chain mechanism, a long shaft, a hoisting chain wheel, a flower tooth, a shell and a speed regulation mechanism, wherein the speed regulation mechanism comprises a rotating rod and a gear shaft, the rotating rod is rotationally connected with the shell, the side wall of the rotating rod is provided with a first gear and a second gear, the first gear and the second gear are respectively pivoted on the rotating rod through a rotating shaft A and a rotating shaft B, the rotating shaft A and the rotating shaft B are hollow structures with two unsealed ends, the inner gear sleeve A and the inner gear sleeve B are respectively arranged in the rotating shaft, the axial lead of the first gear is parallel to the axial lead of the second gear and does not coincide with the axial lead of the second gear, the long shaft is provided with a third gear which is matched with the first gear and a fourth gear which is matched with the second gear, the second gear is meshed with the fourth gear, the gear is provided with a first gear tooth, a second gear tooth and a third gear, the first gear tooth is meshed with, the gear shaft is rotatably connected with the shell, and the device can conveniently change the transmission ratio of the lifted heavy object.
Description
Technical Field
The utility model relates to a manual hoisting machinery field is a hoist chain block for electromechanical construction particularly.
Background
The chain block in the prior art mainly comprises a hoisting chain wheel, a spline tooth, a long shaft, a driving gear set, a hoisting chain and a hand pulling mechanism, wherein the hand pulling mechanism comprises a friction plate, a ratchet mechanism, the hand pulling chain wheel and a hand zipper, the hoisting chain is wound on the hoisting chain wheel, the hand pulling chain is wound on the upper hand wheel chain wheel, an outer gear ring is arranged on one end surface of the hoisting chain wheel, an outer gear ring matched with the outer gear ring is arranged on the spline tooth and meshed with the spline tooth, the hand pulling mechanism is connected with the long shaft and drives the long shaft to rotate, when the long shaft rotates, the torque of the long shaft is transmitted to the driving gear set, the driving gear set is meshed with the spline tooth to drive the spline tooth to rotate, the spline tooth further drives the hoisting chain wheel to rotate, the driving gear set mainly changes the transmission ratio transmitted from the long shaft to the hoisting chain wheel, and can enable a worker to easily lift, the chain block in the prior art has the defects that the transmission ratio is fixed and cannot be changed, so that the lifting speed depends on the speed of a hand pulling a chain wheel in the lifting process, and the chain block is very inconvenient when a heavy object needs to be quickly lifted under certain urgent conditions.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to: the hoisting chain block for electromechanical construction has changeable transmission ratio and thus changeable weight hoisting speed.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a hoisting chain block for electromechanical construction comprises a chain mechanism, a long shaft, a hoisting chain wheel, a spline tooth and a shell, wherein the chain mechanism is in transmission connection with the long shaft and is used for driving the long shaft to rotate, the hoisting chain wheel is sleeved on the long shaft and is in sliding fit with the long shaft, the spline tooth is connected with the hoisting chain wheel, the hoisting chain block further comprises a speed regulating mechanism, the speed regulating mechanism comprises a rotating rod and a gear shaft, the rotating rod is in rotating connection with the shell, a first gear and a second gear are arranged on the side wall of the rotating rod, the first gear and the second gear are respectively pivoted on the rotating rod through a rotating shaft A and a rotating shaft B, the rotating shaft A is opposite to the first gear and keeps still when the first gear rotates, the rotating shaft B is opposite to the second gear and keeps still when the second gear rotates, the rotating shaft A and the rotating shaft B are of a hollow structure with two unsealed ends, an inner gear sleeve A and an inner gear sleeve B are respectively arranged in the first gear, the axial lead of the first gear is parallel to and does not coincide with the axial lead of the second gear, and the first gear is arranged above the second gear;
the long shaft, the rotating rod and the gear shaft are partially arranged in the shell;
a third gear matched with the first gear and a fourth gear matched with the second gear are arranged on the long shaft, the second gear is meshed with the fourth gear, the distance between the first gear and the third gear is larger than zero, and the transmission ratio when the first gear is meshed with the third gear is smaller than that when the second gear is meshed with the fourth gear;
the gear shaft is sequentially provided with a first gear tooth, a second gear tooth matched with the inner gear sleeve B and a third gear tooth matched with the inner gear sleeve A from bottom to top, the first gear tooth is meshed with the spline tooth, the second gear tooth is meshed with the inner gear sleeve B, the first gear tooth can penetrate through the inner gear sleeve A and the inner gear sleeve B, and the second gear tooth can penetrate through the inner gear sleeve A;
the gear shaft is arranged in the positioning groove, the side wall of the gear shaft is in sliding fit with the inner side wall of the positioning groove, and the other end of the gear shaft penetrates through the top wall of the shell and is arranged outside the shell.
Furthermore, the shell is further provided with a sealing head and a screw hole, the sealing head is of a hollow structure with one unsealed end, a skirt edge is arranged at the opening of the sealing head, threads are arranged on the outer side wall of the skirt edge, the skirt edge is connected with the screw hole through threads, and the gear shaft is arranged at the end outside the shell and inserted into the sealing head.
Furthermore, a bearing is arranged in the sealing head, the outer ring of the bearing is connected with the sealing head, and the inner ring of the bearing is sleeved on the side wall of the gear shaft.
Further, a handle is arranged on the part of the rotating rod, which is positioned outside the shell.
Further, an indicator is arranged on the outer wall of the shell, and the indicator is arranged on the surface wall of the shell penetrated by the rotating rod.
Furthermore, the inner gear sleeve A and the rotating shaft A, and the inner gear sleeve B and the rotating shaft B are all integrally formed structures.
Compared with the prior art, the utility model, following beneficial effect has:
1. through control the dwang makes first gear with third gear engagement or second gear with fourth gear engagement can change this device's drive ratio, has increased this device's adaptability.
Drawings
FIG. 1 is a structural diagram of a hoisting chain block used in electromechanical construction of the utility model;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a view showing the construction of a rotating lever;
fig. 4 is a gear shaft structural view.
List of reference numerals
1-a hand-pulling mechanism, 2-a hoisting chain wheel, 3-a shell, 4-a handle, 5-a rotating rod, 6-a first gear, 7-a second gear, 8-a long shaft, 9-a third gear, 10-a fourth gear, 11-a bearing, 12-a flower tooth, 13-a first gear tooth, 14-a third gear tooth, 15-a gear shaft, 16-a second gear tooth, 17-a rotating shaft A, 18-a rotating shaft B, 19-an inner gear sleeve A, 20-an inner gear sleeve B, and 21-a sealing head.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of 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 present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.
As shown in fig. 1 to 4, a hoisting chain block for electromechanical construction comprises a chain mechanism 1, a long shaft 8, a hoisting sprocket 2, a spline 12 and a housing 3, wherein the chain mechanism 1 is in transmission connection with the long shaft 8 and is used for driving the long shaft 8 to rotate, the hoisting sprocket 2 is sleeved on the long shaft 8 and is in sliding fit with the long shaft 8, the spline 12 is connected with the hoisting sprocket 2, the hoisting chain block further comprises a speed regulation mechanism, the speed regulation mechanism comprises a rotating rod 5 and a gear shaft 15, the rotating rod 5 is in rotational connection with the housing 3, a first gear 6 and a second gear 7 are arranged on side walls of the rotating rod, the first gear 6 and the second gear 7 are respectively pivoted on the rotating rod 5 through a rotating shaft a17 and a rotating shaft B18, the rotating shaft a17 is kept static relative to the first gear 6 when the first gear 6 rotates, the rotating shaft B18 is kept static relative to the second gear 7 when the second gear 7 rotates, the rotating shaft A17 and the rotating shaft B18 are hollow structures with two unsealed ends, an inner gear sleeve A19 and an inner gear sleeve B20 are respectively arranged in the rotating shafts, the axial lead of the first gear 6 is parallel to and does not coincide with the axial lead of the second gear 7, and the first gear 6 is arranged above the second gear 7;
the long shaft 8, the rotating rod 5 and the gear shaft 15 are partially arranged in the shell 3;
a third gear 9 adapted to the first gear 6 and a fourth gear 10 adapted to the second gear 7 are arranged on the long shaft 8, the second gear 7 is meshed with the fourth gear 10, the distance between the first gear 6 and the third gear 9 is greater than zero, and the transmission ratio when the first gear 6 is meshed with the third gear 9 is smaller than the transmission ratio when the second gear 7 is meshed with the fourth gear 10;
the gear shaft 15 is sequentially provided with a first gear tooth 13, a second gear tooth 16 matched with the inner gear sleeve B20 and a third gear tooth 14 matched with the inner gear sleeve A19 from bottom to top, the first gear tooth 13 is meshed with the spline 12, the second gear tooth 16 is meshed with the inner gear sleeve B20, the first gear tooth 13 can penetrate through the inner parts of the inner gear sleeve A19 and the inner gear sleeve B20, and the second gear tooth 16 can penetrate through the inner part of the inner gear sleeve A19;
be provided with the constant head tank on the interior diapire of casing 3, the one end of gear shaft 15 set up in the constant head tank, its lateral wall with the inside wall sliding fit of constant head tank, its other end passes casing 3 roof set up in outside casing 3.
The utility model discloses a theory of operation does: in an initial state, the second gear 7 is meshed with the fourth gear 10, the device is in a general working condition with a large transmission ratio at the moment, a heavy object can be lifted by using less force, the long shaft 8 is driven to rotate by the hand pulling mechanism 1, the torque of the long shaft 8 is transmitted to the hoisting chain wheel 2 after sequentially passing through the fourth gear 10, the second gear 7 and the spline 12, and the hoisting chain wheel 2 lifts the heavy object to a specified position through a hoisting chain.
When the transmission ratio of the long shaft 8 to the hoisting sprocket 2 needs to be changed, the gear shaft 15 is firstly pulled out from bottom to top until the first gear tooth 13 moves above the inner gear sleeve a19, then the rotating rod 5 is rotated to disengage the second gear 7 from the fourth gear 10, the first gear 6 is meshed with the third gear 9, then the gear shaft 15 passes through the inner gear sleeve a19 from top to bottom until the first gear tooth 13 is re-meshed with the flower tooth 12, and the bottom end of the gear shaft 15 is arranged in the positioning groove, at this time, the device is in a small transmission ratio working condition, the torque of the long shaft 8 is transmitted to the hoisting sprocket 2 through the third gear 9, the first gear 6 and the flower tooth 12, at this time, although the force required for lifting the same weight is larger than the large transmission ratio working condition, but the speed of lifting the heavy object is faster, the time required for lifting the heavy object is saved, and the production efficiency is increased.
In the present invention, it should be noted that the space in the housing 3 can satisfy the requirement that the first gear teeth 13 are moved to the upper side of the rotating shaft a 17.
Further, still set up sealed head 21, screw on the casing 3, sealed head 21 is the unsealed hollow structure of one end, and its opening part is provided with the shirt rim, be provided with the screw on the lateral wall of shirt rim, the shirt rim with the screw passes through threaded connection, gear shaft 15 set up in the outer end of casing 3 inserts in the sealed head 21.
When the gear shaft 15 does not need to be moved, the skirt edge of the sealing head 21 is screwed into the shell 3 on the shell 3, so that the gear shaft 15 is limited, and the gear shaft 15 is prevented from freely moving to damage the meshing relationship between the first gear teeth 13 and the flower teeth 12.
Further, a bearing 11 is further arranged in the sealing head 21, an outer ring of the bearing 11 is connected with the sealing head 21, and an inner ring of the bearing is sleeved on the side wall of the gear shaft 15.
After the gear shaft 15 is inserted into the inner ring of the bearing 11, the friction between the gear shaft 15 and the sealing head 21 is reduced through the bearing 11, and the working efficiency of the device is improved.
Further, a handle 4 is provided on a portion of the rotating lever 5 outside the housing 3.
By arranging the handle 4, the worker can conveniently rotate the rotating rod 5.
Further, an indicator is arranged on the outer wall of the housing 3, and the indicator is arranged on the surface wall of the housing 3 penetrated by the rotating rod 5.
The utility model discloses in, when the indicator can be in big drive ratio operating mode or little drive ratio operating mode with this device dwang 5 is relative the position of casing 3 is marked out, facilitates the adjustment of user of service.
Further, the inner gear sleeve a19 and the rotating shaft a17, the inner gear sleeve B20 and the rotating shaft B18 are all integrally formed structures.
When the inner gear sleeve A19 and the rotating shaft A17 are integrally formed, the inner gear sleeve A19 cannot rotate relative to the rotating shaft A17, and transmission efficiency is improved. And the connection strength between the inner gear sleeve A19 and the rotating shaft A17 is increased by integral forming, so that the service life of the device is prolonged, and the inner gear sleeve B20 and the rotating shaft B18 are similar.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the embodiments in the above description, and the technical concept of the present invention can be within the scope of the present invention, and can be modified to various simple modifications, and these simple modifications all belong to the protection scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features. In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (6)
1. The utility model provides a jack-up chain block for electromechanical construction, includes chain mechanism (1), major axis (8), hoisting sprocket (2), flower tooth (12), casing (3), chain mechanism (1) with major axis (8) transmission is connected for the drive major axis (8) are rotatory, hoisting sprocket (2) cover is established on major axis (8), and with major axis (8) sliding fit, flower tooth (12) with hoisting sprocket (2) are connected, its characterized in that: still include speed governing mechanism, speed governing mechanism includes dwang (5), gear shaft (15), dwang (5) with casing (3) are rotated and are connected, are provided with first gear (6), second gear (7) on its lateral wall, first gear (6), second gear (7) respectively through pivot A (17), pivot B (18) pin joint in on dwang (5), when first gear (6) rotate pivot A (17) are relative first gear (6) keep quiescent, when second gear (7) rotate pivot B (18) are relative second gear (7) keep quiescent, pivot A (17), pivot B (18) are the unsealed hollow structure in both ends, and its inside is provided with interior tooth cover A (19), interior tooth cover B (20) respectively, the axial lead of first gear (6) with the axial lead of second gear (7) is parallel and do not coincide, the first gear (6) is arranged above the second gear (7);
the long shaft (8), the rotating rod (5) and the gear shaft (15) are partially arranged in the shell (3);
a third gear (9) matched with the first gear (6) and a fourth gear (10) matched with the second gear (7) are arranged on the long shaft (8), the second gear (7) is meshed with the fourth gear (10), the distance between the first gear (6) and the third gear (9) is larger than zero, and the transmission ratio when the first gear (6) is meshed with the third gear (9) is smaller than that when the second gear (7) is meshed with the fourth gear (10);
the gear shaft (15) is sequentially provided with a first gear tooth (13), a second gear tooth (16) matched with the inner gear sleeve B (20) and a third gear tooth (14) matched with the inner gear sleeve A (19) from bottom to top, the first gear tooth (13) is meshed with the spline tooth (12), the second gear tooth (16) is meshed with the inner gear sleeve B (20), the first gear tooth (13) can penetrate through the inner parts of the inner gear sleeve A (19) and the inner gear sleeve B (20), and the second gear tooth (16) can penetrate through the inner part of the inner gear sleeve A (19);
the gear shaft is characterized in that a positioning groove is formed in the inner bottom wall of the shell (3), one end of the gear shaft (15) is arranged in the positioning groove, the side wall of the gear shaft is in sliding fit with the inner side wall of the positioning groove, and the other end of the gear shaft penetrates through the top wall of the shell (3) and is arranged outside the shell (3).
2. The hoisting hand chain block for electromechanical construction according to claim 1, wherein: still set up sealed head (21), screw on casing (3), sealed head (21) are the unsealed hollow structure of one end, and its opening part is provided with the shirt rim, be provided with the screw on the lateral wall of shirt rim, the shirt rim with the screw passes through threaded connection, gear shaft (15) set up in the outer end of casing (3) is inserted in sealed head (21).
3. The hoisting hand chain block for electromechanical construction according to claim 2, characterized in that: the sealing head (21) is also internally provided with a bearing (11), the outer ring of the bearing (11) is connected with the sealing head (21), and the inner ring of the bearing is sleeved on the side wall of the gear shaft (15).
4. The hoisting hand chain block for electromechanical construction according to claim 3, wherein: the rotating rod (5) is positioned on the part outside the shell (3) and is provided with a handle (4).
5. The hoisting hand chain block for electromechanical construction according to claim 4, wherein: set up the indicateing arm on the outer wall of casing (3), the indicateing arm set up in casing (3) quilt on the table wall that dwang (5) passed.
6. The hoisting hand chain block for electromechanical construction according to claim 5, wherein: the inner gear sleeve A (19) and the rotating shaft A (17), the inner gear sleeve B (20) and the rotating shaft B (18) are all integrally formed structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021844246.4U CN213231306U (en) | 2020-08-29 | 2020-08-29 | Hoisting hand chain block for electromechanical construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021844246.4U CN213231306U (en) | 2020-08-29 | 2020-08-29 | Hoisting hand chain block for electromechanical construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213231306U true CN213231306U (en) | 2021-05-18 |
Family
ID=75903029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021844246.4U Expired - Fee Related CN213231306U (en) | 2020-08-29 | 2020-08-29 | Hoisting hand chain block for electromechanical construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213231306U (en) |
-
2020
- 2020-08-29 CN CN202021844246.4U patent/CN213231306U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |