CN215634767U - Milling and planing mechanical power transmission device - Google Patents
Milling and planing mechanical power transmission device Download PDFInfo
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- CN215634767U CN215634767U CN202121599051.2U CN202121599051U CN215634767U CN 215634767 U CN215634767 U CN 215634767U CN 202121599051 U CN202121599051 U CN 202121599051U CN 215634767 U CN215634767 U CN 215634767U
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- milling machine
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Abstract
The utility model discloses a milling machine power transmission device, which comprises an angle transmission box, wherein the angle transmission box is provided with a driving wheel, and one side, far away from the driving wheel, of the angle transmission box is provided with a driven wheel capable of rotating circumferentially; a transmission V belt is connected between the driving wheel and the driven wheel in a transmission way; a tensioning mechanism capable of swinging downwards is arranged in a space enclosed by the transmission V belt; the tensioning mechanism is including connecting on the angle drive case and with the tensioning support in action wheel holding clearance, the tensioning support is kept away from one side of action wheel is equipped with the swivel support axle, the last cover of swivel support axle is equipped with wobbling tensioning rocking arm. The problems that the existing tensioning structure for the milling machine is complex in structure and multiple in machining procedures, and the procedures of slotting, punching, tapping and the like are needed to be carried out on a plate are solved; the structure arrangement is complicated, and occupies a certain space, so that the problem of inconvenience still exists in the actual use.
Description
Technical Field
The utility model relates to the technical field of belt tensioning equipment, in particular to a milling and planing mechanical power transmission device.
Background
The pavement milling machine is a special mechanical device for maintenance operation of highways and urban roads, and is mainly applied to excavation and renovation of asphalt concrete surface courses of highways, airports, wharfs, parking lots and the like, removal of pavement diseases such as rutting, cracking, carbuncle bags, pavement marks and the like of asphalt pavement, galling of cement pavement, milling and leveling of staggered platforms of the surface course and the like;
the milling wheel driving mode of the existing milling machine generally comprises a hydraulic mode and a mechanical mode, and in comparison, the mechanical mode has higher transmission efficiency than the hydraulic mode, so that the mechanical type is widely applied and is common in large milling machines and medium milling machines, a mechanical transmission route generally comprises an engine, a clutch, a belt transmission system and a milling drum speed reducer, and the clutch is used for controlling the opening and closing of the milling wheel;
a tensioning structure for a milling machine is provided in the chinese utility model 201320498984.1, and a tensioning device is added to the device to perform initial tensioning until the milling working device is completely stopped; but the tensioning structure of the belt pulley is complex, the processing procedures are more, and the procedures of slotting, punching, tapping and the like are required to be carried out on the plate; the structure arrangement is complicated, and a certain space is occupied, so that a lot of inconvenience still exists in the practical use;
therefore, a milling machine power transmission device is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a milling and planing mechanical power transmission device for solving the technical problems.
In order to achieve the purpose, the utility model provides the following technical scheme:
a milling machine power transmission device comprises an angle transmission box, wherein a driving wheel is arranged on the angle transmission box, and a driven wheel capable of rotating circumferentially is arranged on one side, far away from the driving wheel; a transmission V belt is connected between the driving wheel and the driven wheel in a transmission way; a tensioning mechanism capable of swinging downwards is arranged in a space enclosed by the transmission V belt; the tensioning mechanism comprises a tensioning support which is connected to the angle transmission box and keeps a gap with the driving wheel, a rotating support shaft is arranged on one side of the tensioning support, which is far away from the driving wheel, a swingable tensioning rocker arm is sleeved on the rotating support shaft, and a tensioning oil cylinder is arranged between the tensioning rocker arm and the tensioning support; the tail end of the tensioning rocker arm is provided with a rotatable tensioning wheel; the tension wheel is positioned in the area below the central connecting line of the driving wheel and the driven wheel and is abutted with the transmission V-belt.
The tensioning mechanism is compact in structure, small in occupied space and convenient to install and disassemble, the tensioning mechanism can tension the transmission V belt to a certain degree by means of the gravity of the tensioning mechanism, and abrasion caused by slipping of the transmission V belt when the tensioning mechanism stops tensioning and the milling device continues to operate by means of inertia can be effectively reduced.
Preferably, a bulge is arranged on the tensioning support, a first installation shaft is connected to the bulge, the first installation shaft is hinged to the top end of the tensioning oil cylinder, and a second installation shaft is hinged to the telescopic end of the tensioning oil cylinder; the mounting shaft II is connected to the connecting part integrally formed with the tensioning rocker arm.
Through installation axle one and installation axle two, make things convenient for the tensioning hydro-cylinder at flexible in-process, can promote the tensioning rocking arm and swing to make the tensioning wheel to carry out the tensioning to transmission V area.
The tensioning support is connected to the angle transmission box, the tensioning rocker arm swings under the pushing of the tensioning oil cylinder by taking the rotating support shaft as a rotating center, and the tensioning wheel is used for tensioning the transmission V belt, so that the power is effectively transmitted to the milling and planing working device, and milling operation is performed.
Preferably, a columnar contact part is integrally formed on one side of the tensioning rocker arm, which is far away from the rotating support shaft, and a large bearing and a small bearing are respectively sleeved on the contact part; the peripheral surface of the large bearing is provided with the tension wheel; the tensioning wheel and the contact part are limited by a clamp spring shaft end.
Preferably, an annular protrusion is arranged on one side of the contact part, which is close to the tensioning rocker arm.
Wherein the contact site is the column, conveniently establishes little bearing and big bearing at its surperficial cover to at the peripheral face installation take-up pulley of big bearing, carry out the axle head spacing to it through the jump ring, guarantee the take-up pulley in the use, the condition of displacement can not take place, and take-up pulley, big bearing and little bearing can drive the tensioning rocking arm and put down under the action of gravity, realize carrying out the tensioning of certain degree to the transmission V area.
Preferably, the large bearing and the small bearing are both self-lubricating bearings, and the aperture of the large bearing is larger than that of the small bearing.
The large bearing and the small bearing of the self-lubricating bearing are adopted, so that the later maintenance times of workers can be reduced, and the working efficiency of the tensioning mechanism is improved.
Preferably, the outer peripheral surface of the tension pulley is smooth.
The smooth tension wheel can allow the tension wheel to have larger coplanar deviation relative to the driving wheel and the driven wheel, so that the abrasion loss of the transmission V-belt is relatively small.
Preferably, the tensioning support is provided with a plurality of mounting screw holes which are distributed in a triangular shape; the front surface of the tensioning oil cylinder is provided with at least two mounting screw holes.
Compared with the prior art, the utility model has the following beneficial effects:
1. compared with the prior art, the utility model has the advantages of more compact structure, small occupied space and convenient installation, and greatly improves the later installation and removal efficiency of workers; 2. compared with the prior art, the utility model can effectively tension the transmission V belt by arranging the tensioning mechanism, and reduces the abrasion problem caused by the slipping of the transmission V belt when the milling device continues to move by inertia after tensioning is stopped.
Drawings
FIG. 1 is a schematic structural view of a power transmission device of the present invention;
fig. 2 is a schematic view of the deployment of the tensioning mechanism of the present invention.
In the figure: 1. an angle drive box; 2. a driving wheel; 3. a tensioning mechanism; 31. tensioning the support; 311. rotating the support shaft; 312. mounting a first shaft; 32. tensioning the rocker arm; 321. mounting a second shaft; 33. tensioning the oil cylinder; 34. a large bearing; 35. a tension wheel; 36. a small bearing; 37. a clamp spring; 4. a V-belt drive; 5. a driven wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-2, a power transmission device for a milling machine includes an angle transmission box 1, a driving wheel 2 is disposed on the angle transmission box 1, and a driven wheel 5 capable of rotating circumferentially is disposed on a side away from the driving wheel 2; a transmission V belt 4 is connected between the driving wheel 2 and the driven wheel 5 in a transmission way; a tensioning mechanism capable of swinging downwards is arranged in a space enclosed by the transmission V belt 4; the tensioning mechanism 3 comprises a tensioning support 31 which is connected to the angle transmission box 1 and keeps a gap with the driving wheel 2, a rotating support shaft 311 is arranged on one side of the tensioning support 31 far away from the driving wheel 2, a swingable tensioning rocker arm 32 is sleeved on the rotating support shaft 311, and a tensioning oil cylinder 33 is arranged between the tensioning rocker arm 32 and the tensioning support 31; the tail end of the tension rocker 32 is provided with a rotatable tension wheel 35; the tension wheel 35 is positioned in the lower area of the central connecting line of the driving wheel 2 and the driven wheel 5 and is abutted with the transmission V belt 4.
The driving wheel 2 is arranged on the angle transmission box 1, a driven wheel 5 is arranged on one side far away from the driving wheel 2, a transmission V belt 4 is connected between the driving wheel 2 and the driven wheel 5 in a transmission manner, and the tensioning mechanism 3 is arranged in a space surrounded by the transmission V belt 4, so that the structure is compact, each structural surface of a peripheral protective cover of the power transmission device can be ensured to have good integrity, the number of open holes is small, and waste materials in the operation process of the milling machine can be effectively prevented from splashing into the protective cover to damage the transmission V belt 4; the tensioning mechanism 3 protects a tensioning support 31 connected to the angle transmission box 1, a rotating support shaft 311 of a tensioning rocker 32 is hinged to the tensioning support 31, a first mounting shaft 312 and a second mounting shaft 321 are movably connected to connecting portions of the tensioning support 31 and the tensioning rocker 32 respectively, and a tensioning oil cylinder 33 is arranged between the first mounting shaft 312 and the second mounting shaft 321; when the tensioning cylinder 33 extends, the tensioning rocker arm 32 can be pushed to take the rotating support shaft 311 as a rotating center, and the tensioning wheel 35 on the tensioning rocker arm 32 is used for tensioning the transmission V belt 4 so as to ensure the normal operation of the transmission V belt 4.
Preferably, a bulge is arranged on the tensioning support 31, a first mounting shaft 312 is connected to the bulge, the first mounting shaft 312 is hinged to the top end of the tensioning oil cylinder 33, and a second mounting shaft 321 is hinged to the telescopic end of the tensioning oil cylinder 33; the second mounting shaft 321 is connected to a connecting portion integrally formed with the tension rocker arm 32.
The tensioning support 31 is connected to the angle transmission box 1, the tensioning rocker arm 32 swings under the pushing of the tensioning oil cylinder 33 by taking the rotating support shaft 311 as a rotating center, and the tensioning wheel 35 tensions the transmission V belt 4, so that the power is effectively transmitted to the milling and planing device, and milling operation is performed.
Preferably, a columnar contact part is integrally formed on one side of the tension rocker arm 32 away from the rotating support shaft 311, and a large bearing 34 and a small bearing 36 are respectively sleeved on the contact part; the outer peripheral surface of the large bearing 34 is provided with a tension wheel 35; the shaft end of the tension wheel 35 is limited with the contact part through a clamp spring 37.
An annular projection is provided on the contact portion on a side thereof adjacent to the tension rocker 32.
Through installation axle one 312 and installation axle two 321, make things convenient for tensioning cylinder 33 at flexible in-process, can promote the tensioning rocking arm 32 and swing to make take-up pulley 35 take up transmission V area 4.
Wherein the contact site is the column, conveniently establishes little bearing 36 and big bearing 34 at its surperficial cover to at the peripheral face installation take-up pulley 35 of big bearing 34, carry out the axle head spacing to it through jump ring 37, guarantee that take-up pulley 35 can not take place the condition of displacement in the use.
Preferably, the large bearing 34 and the small bearing 36 are self-lubricating bearings, and the bore diameter of the large bearing is larger than that of the small bearing.
The large bearing 34 and the small bearing 36 which adopt self-lubricating bearings can reduce the maintenance frequency of the later period of the working personnel and improve the working efficiency of the tensioning mechanism 3.
Example two
In this embodiment, on the basis of the first embodiment, preferably, the outer peripheral surface of the tension pulley 35 is a smooth surface, and the smooth tension pulley 35 is adopted, so that the tension pulley 35 can be allowed to have a large coplanar deviation relative to the driving pulley 2 and the driven pulley 5, and thus the abrasion loss of the transmission V-belt 4 is relatively small; and the tension pulley 35 is arranged in the lower area of the central connecting line of the driving wheel 2 and the driven wheel 5, and the tension pulley 35, the large bearing 34 and the small bearing 36 drive the tension rocker 32 to swing downwards under the action of gravity, so that the transmission V belt 4 is tensioned to a certain degree.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A milling machine power transmission device comprises an angle transmission box, wherein a driving wheel is arranged on the angle transmission box, and a driven wheel capable of rotating circumferentially is arranged on one side, far away from the driving wheel; a transmission V belt is connected between the driving wheel and the driven wheel in a transmission way; the method is characterized in that: a tensioning mechanism capable of swinging downwards is arranged in a space enclosed by the transmission V belt; the tensioning mechanism comprises a tensioning support which is connected to the angle transmission box and keeps a gap with the driving wheel, a rotating support shaft is arranged on one side of the tensioning support, which is far away from the driving wheel, a swingable tensioning rocker arm is sleeved on the rotating support shaft, and a tensioning oil cylinder is arranged between the tensioning rocker arm and the tensioning support; the tail end of the tensioning rocker arm is provided with a rotatable tensioning wheel; the tension wheel is positioned in the area below the central connecting line of the driving wheel and the driven wheel and is abutted with the transmission V-belt.
2. The milling machine power transmission device of claim 1, wherein: a bulge is arranged on the tensioning support, a first mounting shaft is connected to the bulge, the first mounting shaft is hinged to the top end of the tensioning oil cylinder, and a second mounting shaft is hinged to the telescopic end of the tensioning oil cylinder; the mounting shaft II is connected to the connecting part integrally formed with the tensioning rocker arm.
3. The milling machine power transmission device of claim 1, wherein: a columnar contact part is integrally formed on one side of the tensioning rocker arm, which is far away from the rotating support shaft, and a large bearing and a small bearing are respectively sleeved on the contact part; the peripheral surface of the large bearing is provided with the tension wheel; the tensioning wheel and the contact part are limited by a clamp spring shaft end.
4. The milling machine power transmission device of claim 3, wherein: and an annular bulge is arranged on one side of the contact part, which is close to the tensioning rocker arm.
5. The milling machine power transmission device of claim 3, wherein: the big bearing and the small bearing are both self-lubricating bearings, and the aperture of the big bearing is larger than that of the small bearing.
6. The milling machine power transmission device of claim 1, wherein: the peripheral surface of the tensioning wheel is a smooth surface.
7. The milling machine power transmission device of claim 1, wherein: a plurality of mounting screw holes are formed in the tensioning support, and are distributed in a triangular shape; the front surface of the tensioning oil cylinder is provided with at least two mounting screw holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121599051.2U CN215634767U (en) | 2021-07-14 | 2021-07-14 | Milling and planing mechanical power transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121599051.2U CN215634767U (en) | 2021-07-14 | 2021-07-14 | Milling and planing mechanical power transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215634767U true CN215634767U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121599051.2U Active CN215634767U (en) | 2021-07-14 | 2021-07-14 | Milling and planing mechanical power transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215634767U (en) |
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2021
- 2021-07-14 CN CN202121599051.2U patent/CN215634767U/en active Active
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