CN210128047U - Belt tension adjuster - Google Patents
Belt tension adjuster Download PDFInfo
- Publication number
- CN210128047U CN210128047U CN201920392005.1U CN201920392005U CN210128047U CN 210128047 U CN210128047 U CN 210128047U CN 201920392005 U CN201920392005 U CN 201920392005U CN 210128047 U CN210128047 U CN 210128047U
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- positioning block
- belt
- tensioning
- tension adjuster
- screw rod
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Abstract
The utility model discloses a belt tensioning force regulator, including tensioning swivel nut, gag lever post, screw rod, first locating piece and second locating piece, inside the inserting and sliding connection of tensioning swivel nut one end has the gag lever post, tensioning swivel nut other end threaded connection has the screw rod, the gag lever post is kept away from the first locating piece of screw rod one end fixedly connected with, the screw rod is kept away from gag lever post one end fixedly connected with second locating piece. The utility model is simple in operation, it is high to adjust the accuracy, has improved engine and change gear box's transmission stability.
Description
Technical Field
The utility model relates to a belt transmission machinery's supplementary adjusting device specifically is a belt tensioning force regulator.
Background
V-belts, also known as V-belts, are commonly used to connect the pulleys on the engine side and the transmission side.
When assembling the belt or after long-term use, the positions of the engine and the change-speed gear box need to be adjusted to enable the tension of the V-belt to reach the optimal state. When the tension of the triangle belt is too large, the shaft and the bearing generate too large radial force, adverse effects are brought to the bearing and the shaft, even the bearing is damaged and the shaft is broken, and meanwhile, the service life is shortened due to the fact that the triangle belt bears too large tension; the belt is too loose, which causes the reduction of transmission power, unstable operation, serious abrasion due to slipping, high temperature rise and other adverse phenomena.
The conventional method for adjusting the positions of the engine and the speed change gear box is to pry the motor by using a crow bar after a fixing bolt is loosened or to move the motor by using a sledge hammer to move the motor to a required position.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in overcoming the defect that prior art exists, provide a belt tensioning force regulator. This device can make the difference of the central line of engine side belt pulley and the central line of the belt pulley of change gear case side and the rate of tension of belt be in the standard value within range at the adjustment in-process, easy operation, it is high to adjust the accuracy, has improved engine and change gear case's transmission stability.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a belt tensioning force regulator, includes tensioning swivel nut, gag lever post, screw rod, first locating piece and second locating piece, inside the inserting and sliding connection of tensioning swivel nut one end has the gag lever post, tensioning swivel nut other end threaded connection has the screw rod, the gag lever post is kept away from the first locating piece of screw rod one end fixedly connected with, the screw rod is kept away from gag lever post one end fixedly connected with second locating piece.
Preferably, the tensioning screw sleeve is provided with a positioning pin for fixing the limiting rod.
Preferably, the belt tension adjuster is arranged between the two belt pulleys, and one sides of the first positioning block and the second positioning block, which are close to the belt pulleys, are cambered surfaces matched with the belt pulleys.
Preferably, the middle parts of the cambered surfaces of the first positioning block and the second positioning block protrude outwards to form a convex block, and the convex block is abutted to the inner groove of the belt pulley.
Preferably, the corner edge on the same side of the first positioning block and the second positioning block is a round corner edge, so that the marking function is achieved.
Preferably, the tensioning screw sleeve further comprises a gasket, and the gasket is arranged between the first positioning block and the tensioning screw sleeve.
Preferably, the screw has a pitch of 2mm, 1.5mm, or 1 mm.
Compared with the prior art, the beneficial effects of the utility model are that: the cambered surfaces of the first positioning block and the second positioning block of the device are matched with the peripheral radian of the belt pulley and the inner grooves of the convex blocks and the belt pulley, so that the difference between the central line of the belt pulley at the side of the engine and the central line of the belt pulley at the side of the speed change gear box and the tension degree of the belt are within the range of standard values in the adjustment process, the operation is simple, the adjustment accuracy is high, and the transmission stability between the engine and the speed change gear box is improved.
Drawings
FIG. 1 is a schematic diagram of a belt tension adjuster according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the positioning block and the pulley assembly of FIG. 1;
fig. 4 is a side view of the locating block of fig. 1.
Reference numbers in the figures: 1-tensioning threaded sleeve, 2-limiting rod, 3-screw rod, 4-first positioning block, 5-second positioning block, 6-gasket, 7-positioning pin, 8-belt pulley, 9-belt, 10-lug and 11-fillet edge.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1 and fig. 2, the utility model provides a technical solution: a belt tensioning force adjuster is used for adjusting the tensioning force of a belt between two belt pulleys and comprises a tensioning threaded sleeve 1, a limiting rod 2, a screw rod 3, a first positioning block 4 and a second positioning block 5, wherein the tensioning threaded sleeve 1 is a hexagonal threaded sleeve, the limiting rod 2 is inserted into and connected with one end of the tensioning threaded sleeve 1 in a sliding mode, a positioning pin 7 used for fixing the limiting rod 2 is arranged on the tensioning threaded sleeve 1, and the positioning pin 7 penetrates through the tensioning threaded sleeve 1 and extends into a groove in the limiting rod 2; the other end of the tensioning threaded sleeve 1 is in threaded connection with a screw rod 3, the limiting rod 2 is far away from one end of the screw rod 3 and is fixedly connected with a first positioning block 4, and the screw rod 3 is far away from one end of the limiting rod 2 and is fixedly connected with a second positioning block 5.
Referring to fig. 1, 3 and 4, in the present embodiment, the first positioning block 4 and the second positioning block 5 are curved surfaces matching with the outer circumference of the belt pulley 8 at the sides close to the belt pulley 8, the middle parts of the curved surfaces of the first positioning block 4 and the second positioning block 5 are protruded outwards to form a protrusion 10, and the protrusion 10 is abutted to the inner groove of the belt pulley 8.
The utility model discloses a this design can make the difference of the central line of the belt pulley 8 of engine side belt pulley 8 and the belt pulley 8 of change gear case side and the rate of tension of belt be in standard value within range in the adjustment process, and the positional deviation of two belt pulley 8 central lines is-2 mm ~ 2mm, and the bending amount of belt 9 is 10mm ~ 12mm, adjusts the accuracy height, improves engine and change gear case's transmission power factor.
In the present embodiment, the pitch of the screw 3 is any one of 2mm, 1.5mm, and 1mm, preferably 2mm, and the internal thread of the tension screw boss 1 matches the external thread of the screw 3.
In this embodiment, the corner edge of the same side of the first positioning block 4 and the second positioning block 5 is a rounded corner edge 11, which plays a role of identification.
Further, in order to facilitate the rotation of the tension screw 1 and reduce the resistance, a spacer 6 is provided between the first positioning block 4 and the tension screw 1.
To sum up, the utility model discloses an operating procedure as follows: firstly, cambered surfaces of a first positioning block 4 and a second positioning block 5 of the belt tension adjuster respectively correspond to two belt pulleys 8, a round corner edge 11 of the first positioning block 4 and the second positioning block 5 faces an operator, then a tensioning screw sleeve 1 is rotated according to a specific direction, a screw rod 3 is screwed out outwards, the center distance between the two belt pulleys 8 is increased by 2mm when the tensioning screw sleeve 1 rotates for one circle, the position between an engine and a speed change gear box is further adjusted, the difference between the center lines of the two belt pulleys 8 and the tension of a belt 9 are simultaneously measured, when the difference between the center lines of the two belt pulleys 8 and the tension of the belt 9 are in a range, a mark is made on a plane facing the operator in six surfaces of the tensioning screw sleeve 1, when the standard value of the belt 9 is adjusted subsequently, the adjustment can be completed only by rotating the tensioning screw sleeve 1 to the mark position, the difference between the center lines of the two belt pulleys 8 and the tension of the belt 9 do not need to be tested every, the operation is convenient, and the adjustment precision is high.
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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A belt tension adjuster, characterized by: including tensioning swivel nut (1), gag lever post (2), screw rod (3), first locating piece (4) and second locating piece (5), tensioning swivel nut (1) one end is inside to be inserted and sliding connection has gag lever post (2), tensioning swivel nut (1) other end threaded connection has screw rod (3), gag lever post (2) are kept away from first locating piece (4) of screw rod (3) one end fixedly connected with, keep away from screw rod (3) gag lever post (2) one end fixedly connected with second locating piece (5).
2. The belt tension adjuster as set forth in claim 1, wherein: and the tensioning screw sleeve (1) is provided with a positioning pin (7) for fixing the limiting rod (2).
3. The belt tension adjuster as set forth in claim 1, wherein: one sides of the first positioning block (4) and the second positioning block (5) close to the belt pulley (8) are cambered surfaces matched with the peripheral radian of the belt pulley (8).
4. The belt tension adjuster as set forth in claim 3, wherein: the middle parts of the cambered surfaces of the first positioning block (4) and the second positioning block (5) are outwards protruded to form a convex block (10), and the convex block (10) is abutted to the inner groove of the belt pulley (8).
5. The belt tension adjuster as set forth in claim 1, wherein: the corner edge on the same side of the first positioning block (4) and the second positioning block (5) is a round corner edge (11) and plays a role in marking.
6. The belt tension adjuster as set forth in claim 1, wherein: the tensioning screw sleeve is characterized by further comprising a gasket (6), wherein the gasket (6) is arranged between the first positioning block (4) and the tensioning screw sleeve (1).
7. The belt tension adjuster as set forth in claim 1, wherein: the screw pitch of the screw (3) is any one of 2mm, 1.5mm and 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920392005.1U CN210128047U (en) | 2019-03-26 | 2019-03-26 | Belt tension adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920392005.1U CN210128047U (en) | 2019-03-26 | 2019-03-26 | Belt tension adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210128047U true CN210128047U (en) | 2020-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920392005.1U Active CN210128047U (en) | 2019-03-26 | 2019-03-26 | Belt tension adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210128047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728027A (en) * | 2020-12-28 | 2021-04-30 | 湖北首开机械有限公司 | Geotechnical engineering drilling device |
-
2019
- 2019-03-26 CN CN201920392005.1U patent/CN210128047U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728027A (en) * | 2020-12-28 | 2021-04-30 | 湖北首开机械有限公司 | Geotechnical engineering drilling device |
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