CN107061645B - Transmission chain tensioning structure of pneumatic tyre roller and adjusting method thereof - Google Patents
Transmission chain tensioning structure of pneumatic tyre roller and adjusting method thereof Download PDFInfo
- Publication number
- CN107061645B CN107061645B CN201710332744.7A CN201710332744A CN107061645B CN 107061645 B CN107061645 B CN 107061645B CN 201710332744 A CN201710332744 A CN 201710332744A CN 107061645 B CN107061645 B CN 107061645B
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- Prior art keywords
- connecting rod
- handed thread
- hinged
- axle support
- block
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0842—Mounting or support of tensioner
Abstract
The invention relates to a transmission chain tensioning structure of a pneumatic tire roller and an adjusting method thereof, wherein the structure comprises a chain wheel (9) arranged on a driving axle support (1); the driving axle support (1) below transversely is provided with a screw rod (4), left and right ends of the screw rod (4) are respectively provided with a left-handed thread block (5) and a right-handed thread block (6) in a screwing mode, and the left-handed thread block (5) and the right-handed thread block (6) are respectively connected with the driving axle support (1) through a left connecting rod assembly (2) and a right connecting rod assembly (3). The transmission chain tensioning structure of the pneumatic tire roller and the adjusting method thereof have the advantages of simple structure, simple tensioning process and convenient operation, and the maintenance performance of the transmission chain is improved.
Description
Technical Field
The invention relates to a tensioning structure and an adjusting method thereof, in particular to a mechanism for tensioning a transmission chain on a tyre roller and an adjusting method thereof, belonging to the field of road engineering machinery.
Background
At present, the pneumatic tire roller has good flexible compaction performance and does not damage compacted aggregate in the compaction process, so that the pneumatic tire roller becomes necessary compaction mechanical engineering equipment in asphalt pavement construction, and is commonly used for asphalt pavement compaction and stabilized soil subgrade compaction;
the common driving mode of the domestic pneumatic roller is mainly rear wheel driving, the driving axle drives the rear wheel driven sprocket to drive through the driving chain, the chain driving manufacturing and mounting precision requirement is lower, the bearing capacity is higher, certain buffering and damping performance is realized, and the driving efficiency is higher, so that the pneumatic roller is widely applied in China; however, after the chain is driven for a period of time, the chain is worn and stretched, although the chain is relatively slow, the chain is stretched along with the wear and the tension of the loose edge is too large, so that poor engagement, chain vibration and transmission jumping teeth are caused, and the driving chain is required to be tensioned;
the tyre roller chain tensioning mechanism of each manufacturer in China mainly adopts a mode of adjusting the center distance to lift the driving chain wheel so as to tension the chain, and the design structure is generally shown in the attached figure 2: the chain wheel comprises a fine tooth screw rod 101, a drive axle support 102 and a compression bolt 103 at two ends of a chain wheel center line;
the tensioning process of the chain is complicated, the threaded connection gap between the drive axle support 102 and the fine tooth screw rod 101 is small, one end of the fine tooth screw rod 101 needs to be adjusted firstly, only a small distance is needed to be adjusted, and then the other end is adjusted, otherwise, the phenomenon of thread seizure occurs, so that the drive axle support 102 needs to be lifted by repeatedly and continuously adjusting the left and right fine tooth screw rods 101 by small distances respectively; after the fine tooth screws 101 at the two ends are adjusted to proper positions, four compression bolts 103 are screwed; because the pneumatic tire roller has a compact structure, the frame is a full-closed integral frame, the fine tooth screw 101 tool at the inner side is difficult to reach the operation position, and the adjustment can be realized only after the water tank and other accessories are disassembled; the positioning surface at the bottom of the fine tooth screw rod 101 is contacted with the frame, and the friction force of the contact surface is increased due to the weight of the driving axle, so that the fine tooth screw rod needs to be adjusted with larger torque, a larger air gun is needed to be used for adjustment at a construction site, and four fine tooth screw rods 101 need to be adjusted in one tensioning; therefore, the engineering quantity of the chain is large and the adjustment is difficult.
Disclosure of Invention
The invention aims to overcome the defects and provide a transmission chain tensioning structure of a pneumatic tire roller and an adjusting method thereof, wherein the transmission chain tensioning structure is simple in structure and convenient to maintain.
The purpose of the invention is realized in the following way:
a kind of pneumatic tire roller drive chain tensioning structure, the said structure includes the sprocket installed on drive axle support;
a screw rod is transversely arranged below the drive axle support, a left-handed thread guiding block and a right-handed thread guiding block are respectively arranged at the left end and the right end of the screw rod in a screwed manner,
the left connecting rod assembly comprises two connecting rods, the top of the connecting rod positioned above is hinged with the driving axle support and connected with a first hinge point, the bottom of the connecting rod positioned below is hinged with the frame at a third hinge point, and the bottom of the connecting rod positioned above and the top of the connecting rod positioned below are hinged on the left-hand thread guiding block through a second hinge point;
the right connecting rod assembly comprises two connecting rods, the top of the connecting rod positioned above is hinged with the driving axle support and connected to a first hinge point, the bottom of the connecting rod positioned below is hinged with the frame at a third hinge point, and the bottom of the connecting rod positioned above and the top of the connecting rod positioned below are hinged on the guiding right-handed thread block through a second hinge point II.
The invention relates to a transmission chain tensioning structure of a pneumatic tyre roller, wherein a locking nut is arranged on a screw in a screwing way; the locking device is used for locking the guiding left-handed thread block or the guiding right-handed thread block.
The invention relates to a method for adjusting a tension structure of a transmission chain of a pneumatic tyre roller, which comprises the following steps: and loosening the lock nut, driving the screw to rotate, and after the screw rotates, driving the left-handed thread block and the right-handed thread block to tighten inwards by threads, wherein the left connecting rod assembly and the right connecting rod assembly upwards lift the drive axle support to the target position, and then tightening the lock nut, so that the tensioning of the chain on the chain wheel is completed.
Compared with the prior art, the invention has the beneficial effects that:
the screw rod, the left-handed thread block and the right-handed thread block form a rotary translation conversion mechanism of the screw rod nut, and the left connecting rod assembly and the right connecting rod assembly convert the translation motion of the left-handed thread block and the right-handed thread block into the up-and-down lifting motion, so that the device has a simple and reliable whole structure, and is very convenient to adjust and maintain.
Drawings
Fig. 1 is a schematic structural view of a transmission chain tensioning structure of a pneumatic tire roller according to the present invention.
Fig. 2 is a schematic diagram of a conventional drive chain tensioning structure.
Wherein:
the driving axle support 1, the left connecting rod assembly 2, the right connecting rod assembly 3, the screw 4, the guiding left-handed thread block 5, the guiding right-handed thread block 6, the frame 7, the locking nut 8 and the chain wheel 9;
connecting rod 2.1, hinge point one 2.2, hinge point two 2.3 and hinge point three 2.4;
a fine tooth screw 101, a drive axle support 102, a compression bolt 103, a sprocket one 104 and a frame one 105.
Detailed Description
Referring to fig. 1, the present invention relates to a tension structure for a transmission chain of a pneumatic tire roller, which comprises a sprocket 9 mounted on a drive axle support 1;
a screw 4 is transversely arranged below the drive axle support 1, a left-handed thread guiding block 5 and a right-handed thread guiding block 6 are respectively arranged at the left end and the right end of the screw 4 in a screwed manner,
the left connecting rod assembly 2 comprises two connecting rods 2.1, the top of the connecting rod 2.1 positioned above is hinged with the driving axle support 1 to be connected with a first hinge point 2.2, the bottom of the connecting rod 2.1 positioned below is hinged with the frame 7 to be connected with a third hinge point 2.4, and the bottom of the connecting rod 2.1 positioned above is hinged with the top of the connecting rod 2.1 positioned below to be connected with the left-handed thread guiding block 5 through a second hinge point 2.3;
the right connecting rod assembly 3 comprises two connecting rods, the top of the connecting rod positioned above is hinged with the drive axle support 1 to be connected with a first hinge point, the bottom of the connecting rod positioned below is hinged with the frame 7 to be connected with a third hinge point, and the bottom of the connecting rod positioned above and the top of the connecting rod positioned below are hinged on the guiding right-handed thread block 6 through a second hinge point II;
further, a lock nut 8 is screwed on the screw 4; the locking device is used for locking the guiding left-handed thread block 5 or the guiding right-handed thread block 6;
an adjusting method of a transmission chain tensioning structure of a tyre roller comprises the following steps: loosening the locking nut 8, driving the screw 4 to rotate (the screw 4 can be driven by a power device such as a motor, a handle can be installed for hand driving, and the like), driving the left-handed thread block 5 and the right-handed thread block 6 to tighten inwards by threads after the screw 4 rotates, and tightening the locking nut 8 after the left connecting rod assembly 2 and the right connecting rod assembly 3 lift the drive axle support 1 upwards to a target position, so that tensioning of a chain on the chain wheel 9 is completed;
in addition: it should be noted that the above embodiment is only one of the optimization schemes of this patent, and any modification or improvement made by those skilled in the art according to the above concepts is within the scope of this patent.
Claims (2)
1. A transmission chain tensioning structure of a pneumatic tyre roller comprises a chain wheel (9) arranged on a driving axle support (1); the method is characterized in that: a screw rod (4) is transversely arranged below the drive axle support (1), a left-handed thread guiding block (5) and a right-handed thread guiding block (6) are respectively arranged at the left end and the right end of the screw rod (4) in a screwed mode, and the left-handed thread guiding block (5) and the right-handed thread guiding block (6) are respectively connected with the drive axle support (1) through a left connecting rod assembly (2) and a right connecting rod assembly (3);
the left connecting rod assembly (2) comprises two connecting rods (2.1), the top of the connecting rod (2.1) positioned above is hinged with the driving axle support (1) and is connected with a first hinging point (2.2), the bottom of the connecting rod (2.1) positioned below is hinged with the frame (7) and is hinged with a third hinging point (2.4), and the bottom of the connecting rod (2.1) positioned above and the top of the connecting rod (2.1) positioned below are hinged on the left-handed thread guiding block (5) through a second hinging point (2.3); the right connecting rod assembly (3) comprises two connecting rods, the top of the connecting rod positioned above is hinged with the driving axle support (1) to be connected with a first hinge point, the bottom of the connecting rod positioned below is hinged with the frame (7) to be connected with a third hinge point, and the bottom of the connecting rod positioned above and the top of the connecting rod positioned below are hinged on the guiding right-handed thread block (6) through a second hinge point II;
a lock nut (8) is arranged on the screw rod (4) in a screwing way; the locking device is used for locking the guiding left-handed thread block (5) or the guiding right-handed thread block (6).
2. A method for adjusting a tension structure of a transmission chain of a pneumatic tire roller is characterized by comprising the following steps of: the adjusting method is based on the tension structure of the transmission chain of the pneumatic tire roller as set forth in claim 1, and when the adjustment is carried out: loosening the lock nut (8), driving the screw rod (4) to rotate, driving the left-handed thread block (5) and the right-handed thread block (6) to tighten inwards by the threads after the screw rod (4) rotates, and tightening the lock nut (8) after the left connecting rod assembly (2) and the right connecting rod assembly (3) upwards lift the drive axle support (1) to the target position, thereby completing the tensioning of the chain on the chain wheel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710332744.7A CN107061645B (en) | 2017-05-12 | 2017-05-12 | Transmission chain tensioning structure of pneumatic tyre roller and adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710332744.7A CN107061645B (en) | 2017-05-12 | 2017-05-12 | Transmission chain tensioning structure of pneumatic tyre roller and adjusting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107061645A CN107061645A (en) | 2017-08-18 |
| CN107061645B true CN107061645B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710332744.7A Active CN107061645B (en) | 2017-05-12 | 2017-05-12 | Transmission chain tensioning structure of pneumatic tyre roller and adjusting method thereof |
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| Country | Link |
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| CN (1) | CN107061645B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05318187A (en) * | 1992-05-18 | 1993-12-03 | Mitsubishi Electric Corp | Press device by using toggle mechanism |
| JPH08206882A (en) * | 1995-02-07 | 1996-08-13 | Amada Co Ltd | Ram driving device for press |
| CN103899721A (en) * | 2014-04-23 | 2014-07-02 | 中船第九设计研究院工程有限公司 | Rocker arm type chain tensioning device |
| CN204688987U (en) * | 2015-04-22 | 2015-10-07 | 楚天科技股份有限公司 | For the guipure tightening device of mesh belt transmission machine |
| CN206802221U (en) * | 2017-05-12 | 2017-12-26 | 柳工无锡路面机械有限公司 | A kind of rubber-tyred roller driving chain tension structure |
-
2017
- 2017-05-12 CN CN201710332744.7A patent/CN107061645B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05318187A (en) * | 1992-05-18 | 1993-12-03 | Mitsubishi Electric Corp | Press device by using toggle mechanism |
| JPH08206882A (en) * | 1995-02-07 | 1996-08-13 | Amada Co Ltd | Ram driving device for press |
| CN103899721A (en) * | 2014-04-23 | 2014-07-02 | 中船第九设计研究院工程有限公司 | Rocker arm type chain tensioning device |
| CN204688987U (en) * | 2015-04-22 | 2015-10-07 | 楚天科技股份有限公司 | For the guipure tightening device of mesh belt transmission machine |
| CN206802221U (en) * | 2017-05-12 | 2017-12-26 | 柳工无锡路面机械有限公司 | A kind of rubber-tyred roller driving chain tension structure |
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| Publication number | Publication date |
|---|---|
| CN107061645A (en) | 2017-08-18 |
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