CN110966366A - Engine belt assembling tool and assembling method - Google Patents
Engine belt assembling tool and assembling method Download PDFInfo
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- CN110966366A CN110966366A CN201911328800.5A CN201911328800A CN110966366A CN 110966366 A CN110966366 A CN 110966366A CN 201911328800 A CN201911328800 A CN 201911328800A CN 110966366 A CN110966366 A CN 110966366A
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- guide cam
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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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
- F16H7/24—Equipment for mounting belts, ropes, or chains
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses an engine belt assembling tool which comprises a guide cam, a guide part, a force application bolt and a belt limiting disc, wherein the guide cam is used for sleeving a belt and is used for being installed on a driving belt wheel, the guide part is arranged on the guide cam and is used for pushing the belt to the driving belt wheel along the radial direction in the synchronous rotation process of the guide cam and the driving belt wheel, the force application bolt is arranged on the guide cam, the belt limiting disc is used for being installed on a first driven belt wheel and is used for limiting the belt on the first driven belt wheel, the guide part is provided with a guide surface used for being in contact with the belt. The engine belt assembling tool disclosed by the invention can realize easy and labor-saving assembly of the engine belt by matching with the driving belt wheel arranged on the engine crankshaft, and the assembling efficiency of the engine belt is improved. The invention also provides an engine belt assembling method.
Description
Technical Field
The invention belongs to the technical field of engine production equipment, and particularly relates to an engine belt assembling tool and an engine belt assembling method.
Background
In an engine used for a vehicle, a generator, a water pump, an air conditioner compressor and the like are driven by a belt transmission mechanism, and the belt transmission mechanism is composed of a driving belt wheel arranged on the engine crankshaft, a first driven belt wheel arranged on a main shaft of the generator, a second driven belt wheel arranged on a main shaft of the water pump, a third driven belt wheel arranged on a main shaft of the air conditioner compressor and a belt matched with the driving belt wheel, the first driven belt wheel, the second driven belt wheel and the third driven belt wheel. Because the belt is the tensioning cooperation, no matter be the assembly belt of host computer factory or after sales maintenance change belt, all carry out manual assembly belt by the manual work, the assembly belt need pull hard, pull with the pliers centre gripping even, hard dress hard, inefficiency, and damage the belt easily, even press from both sides and hinder or stab the finger.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an engine belt assembling tool, and aims to improve the assembling efficiency of an engine belt.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an engine belt assembly fixture, including be used for suit belt and be used for installing the guide cam on driving pulley, set up on the guide cam and be used for along radial guide portion of promoting the belt to driving pulley in guide cam and driving pulley synchronous revolution in-process, set up the application of force bolt on the guide cam and be used for installing on first driven pulley and be used for carrying out spacing belt spacing dish on the belt of first driven pulley, the guide portion has the guide face that is used for with the belt contact, driving pulley installs on engine crankshaft.
The guide surface is a curved surface, and a distance between the guide surface and an outer end surface of the guide cam is gradually reduced from a first end to a second end of the guide surface.
The outer surface of the guide cam comprises a first contact surface, a second contact surface and two connection surfaces connected with the first contact surface and the second contact surface, the first contact surface and the second contact surface are arc surfaces, the diameter of the first contact surface is larger than that of the second contact surface, the axes of the first contact surface and the second contact surface are parallel, the guide surface is connected with the two connection surfaces and the second contact surface, and the second contact surface is positioned between the two connection surfaces; during the rotation of the guide cam, the guide surface pushes the belt fitted over the second contact surface gradually onto the driving pulley.
The engine belt assembly fixture further comprises a plurality of transmission rods arranged on the guide cam, and the driving belt wheel is provided with mounting holes for the transmission rods to be inserted into.
The belt limiting disc is installed on the first driven belt wheel through a magnet.
The invention also provides an engine belt assembling method, which adopts the engine belt assembling tool with the structure and comprises the following steps:
s1, installing the guide cam on the driving belt wheel, and installing the belt limiting disc on the first driven belt wheel;
s2, winding the belt on the guide cam and the first driven pulley, the second driven pulley and the third driven pulley of the engine;
s3, rotating the guide cam, and pushing the belt to the driving pulley along the radial direction under the action of the guide part;
and S4, after the guide cam rotates for a set angle, the belt is assembled in place, and the engine belt assembling device is taken down.
The driving belt wheel is installed on a crankshaft of the engine, the first driven belt wheel is installed on a main shaft of the generator, the second driven belt wheel is installed on a main shaft of the water pump, and the third driven belt wheel is installed on a main shaft of the air-conditioning compressor.
The belt limiting disc is installed on the first driven belt wheel through a magnet.
The engine belt assembling tool disclosed by the invention can realize easy and labor-saving assembly of the engine belt by matching with the driving belt wheel arranged on the engine crankshaft, and the assembling efficiency of the engine belt is improved.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic structural diagram of an engine belt assembly fixture of the present invention;
FIG. 2 is a schematic structural view of the engine belt assembling tool at another angle;
FIG. 3 is a schematic structural view of a belt limiting disc;
FIGS. 4-8 are schematic views of a belt installation process;
labeled as: 1. a force application bolt; 2. a transmission rod; 3. a belt limiting disc; 4. a guide section; 5. a guide surface; 6. a guide cam; 601. a first contact surface; 602. a second contact surface; 603. a connecting surface; 604. an outer end face; 605. an inner end surface; 7. a first end; 8. a second end; 9. a belt; 10. a driving pulley; 11. a first driven pulley; 12. a second driven pulley; 13. a third driven pulley; 14. and a magnet.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
It should be noted that, in the following embodiments, the terms "first", "second" and "third" do not denote absolute differences in structure and/or function, nor do they denote a sequential order of execution, but rather are used for convenience of description.
As shown in fig. 1 to 8, the invention provides an engine belt assembling tool, which comprises a guide cam 6, a guide portion 4, a force application bolt 1 and a belt limiting disc 3, wherein the guide cam 6 is used for sleeving a belt and is used for being installed on a driving pulley 10, the guide portion 4 is arranged on the guide cam 6 and is used for pushing the belt to the driving pulley 10 in the radial direction in the synchronous rotation process of the guide cam 6 and the driving pulley 10, the force application bolt 1 is arranged on the guide cam 6, the belt limiting disc 3 is used for being installed on a first driven pulley 11 and is used for limiting the belt on the first driven pulley 11, the guide portion 4 is provided with a guide surface 5 used for being in contact with the belt.
Specifically, as shown in fig. 1 to 8, the guide portion 4 is fixedly connected to the guide cam 6, and the guide portion 4 projects outward of the guide cam 6. After the guide cam 6 is attached to the driving pulley 10, the guide surface 5 is a surface of the guide portion 4 facing the driving pulley 10, and the belt is located between the guide surface 5 and the driving pulley 10. Preferably, the guide surface 5 is a curved surface, the perpendicular distance between the guide surface 5 and the outer end surface 604 of the guide cam 6 is gradually decreased from the first end to the second end of the guide surface 5, the first end and the second end of the guide surface 5 are opposite ends in the length direction of the guide surface 5, the inner end surface 605 and the outer end surface 604 of the guide cam 6 are flat surfaces perpendicular to the axis of the guide cam 6, the guide surface 5 and the axis of the guide cam 6 have an included angle and the included angle is an acute angle, the inner end surface 605 and the outer end surface 604 of the guide cam 6 are opposite end surfaces on the guide cam 6, and the guide portion 4 is located between the inner end surface 605 and the outer end surface 604. The perpendicular distance between the first end of the guide surface 5 and the outer end surface 604 of the guide cam 6 is smaller than the perpendicular distance between the first end and the inner end surface 605 of the guide cam 6, and the perpendicular distance between the second end of the guide surface 5 and the outer end surface 604 of the guide cam 6 is larger than the perpendicular distance between the second end and the inner end surface 605 of the guide cam 6.
As shown in fig. 1 to 8, the outer surface of the guide cam 6 includes a first contact surface 601, a second contact surface 602, and two connection surfaces 603 connected to the first contact surface 601 and the second contact surface 602, the first contact surface 601 and the second contact surface 602 are circular arc surfaces, the diameter of the first contact surface 601 is larger than that of the second contact surface 602, the axis of the first contact surface 601 (i.e., the axis of the guide cam 6) is parallel to that of the second contact surface 602, the guide surface 5 is connected to the two connection surfaces 603 and the second contact surface 602, and the second contact surface 602 is located between the two connection surfaces 603; during the rotation of the guide cam 6, the guide surface 5 pushes the belt fitted over the second contact surface 602 gradually onto the driving pulley 10. The two connection surfaces 603 are symmetrically arranged by taking a connection line between the circle center of the first contact surface 601 and the circle center of the second contact surface 602 as a center line, the two connection surfaces 603 are arranged in a V shape, two ends of each connection surface 603 are respectively connected with one end of the first contact surface 601 and one end of the second contact surface 602, two ends of the first contact surface 601 in the radian direction are respectively connected with one end of the two connection surfaces 603, two ends of the second contact surface 602 in the radian direction are respectively connected with the other end of the two connection surfaces 603, the radian of the first contact surface 601 is greater than that of the second contact surface 602, and the radian of the first contact surface 601 is approximately 180 degrees.
As shown in fig. 1 and 2, the engine belt assembling tool of the present invention further includes a plurality of transmission rods 2 disposed on the guide cam 6, and the driving pulley 10 has a mounting hole into which the transmission rod 2 is inserted. The transmission rod 2 has a certain length, the length direction of the transmission rod 2 is parallel to the axis of the guide cam 6, the guide cam 6 can be installed on the driving pulley 10 after the transmission rod 2 is inserted into the installation hole in the driving pulley 10, and when the guide cam 6 rotates around the axis, the guide cam 6 drives the driving pulley 10 to synchronously rotate through the transmission rod 2. The force application bolt 1 is a hexagon head bolt, one end of the force application bolt 1 is fixedly connected with the guide cam 6 at the center of the guide cam 6, the hexagon head of the force application bolt 1 is positioned on the outer side of the guide cam 6, the force application bolt 1 and the transmission rod 2 respectively extend towards two opposite sides of the guide cam 6, and the axis of the force application bolt 1 and the axis of the guide cam 6 are in the same straight line. The force application bolt 1 is used for sleeving a socket wrench and bearing torque applied by the socket wrench.
As shown in fig. 3, the belt limiting disc 3 is of a disc-shaped structure, the belt limiting disc 3 is mounted on the first driven belt wheel 11 through a magnet 14, and the magnet 14 can be adsorbed on the first driven belt wheel 11 to facilitate disassembly and assembly. The first driven belt wheel 11 is installed on a main shaft of the generator, the magnet 14 is arranged at the center of the belt limiting disc 3, and the outer diameter of the belt limiting disc 3 is larger than that of the first driven belt wheel 11. Install back on first driven pulley 11 with the spacing dish 3 of belt, the spacing dish 3 of belt is in coaxial state with first driven pulley 11, and the spacing dish 3 of belt is located the outside of first driven pulley 11 for play limiting displacement to the belt of cover on first driven pulley 11 in the axial, prevent that the belt from droing.
The invention also provides an engine belt assembling method, which adopts the engine belt assembling tool with the structure and comprises the following steps:
s1, mounting the guide cam 6 on the driving pulley 10, and mounting the belt stopper 3 on the first driven pulley 11, as shown in fig. 1;
s2, winding the belt around the guide cam 6 and the first, second, and third driven pulleys 11, 12, and 13 of the engine, as shown in fig. 2;
s3, rotating the guide cam 6, and the belt is pushed to the driving pulley 10 along the radial direction under the action of the guide part 4, as shown in fig. 3 and 4;
and S4, after the guide cam 6 rotates for a set angle, separating the belt from the guide cam 6, assembling the belt in place, and taking down the engine belt assembling device, as shown in figure 5.
As shown in fig. 4 to 8, the driving pulley 10 is mounted on the crankshaft of the engine, the first driven pulley 11 is mounted on the main shaft of the generator, the second driven pulley 12 is mounted on the main shaft of the water pump, the third driven pulley 13 is mounted on the main shaft of the air conditioner compressor, and the axes of the first driven pulley 11, the second driven pulley 12, and the third driven pulley 13 are parallel to the axis of the driving pulley 10. The height of the first driven pulley 11 is greater than that of the second driven pulley 12, the height of the second driven pulley 12 is greater than that of the driving pulley 10, the height of the driving pulley 10 is greater than that of the third driven pulley 13, the third driven pulley 13 is located right below the second driven pulley 12, the first driven pulley 11 is located between the second driven pulley 12 and the driving pulley 10, and the first driven pulley 11 is located obliquely below the second driven pulley 12.
In the above step S1, the belt stopper 3 is attached to the first driven pulley 11 by the magnet 14, and the magnet 14 attracts the first driven pulley 11 at the center of the first driven pulley 11. After the belt limiting disc 3 is installed on the first driven belt wheel 11, the belt limiting disc 3 and the first driven belt wheel 11 are in a coaxial state, and the belt limiting disc 3 is located on the outer side of the first driven belt wheel 11. In the above step S2, the belt stopper 3 may function to axially restrict the belt fitted around the first driven pulley 11.
In step S1, when the guide cam 6 is mounted, the drive link 2 is inserted into the mounting hole of the drive pulley 10, the guide cam 6 is fixed to the drive pulley 10, the guide cam 6 and the drive pulley 10 are coaxially aligned (in this case, the axis of the guide cam 6 is aligned with the axis of the drive pulley 10, the inner end surface 605 of the guide cam 6 is located between the outer end surface 604 of the guide cam 6 and the drive pulley 10), and the second contact surface 602 of the guide cam 6 is located obliquely below the first contact surface 601.
In step S2, the belt is fitted over the guide cam 6 so as to be in contact with the first contact surface 601 of the guide cam 6, the belt is positioned between the guide portion 4 and the driving pulley 10, the belt is wound around the first driven pulley 11 from below, the belt is wound around the second driven pulley 12 from above, and the belt is wound around the third driven pulley 13 from below.
In the above step S3, the socket wrench is sleeved on the force application bolt 1, and then the socket wrench is used to rotate the force application bolt 1 clockwise, the force application bolt 1 drives the guide cam 6 to rotate synchronously, the guide cam 6 drives the driving pulley 10 to rotate synchronously, and the belt is gradually pushed to the driving pulley 10 on the inner side along the radial direction under the driving of the guide cam 6 and the guiding action of the guide surface 5. Also during the rotation of the guide cam 6, the first contact surface 601 is gradually separated from the belt, and the second contact surface 602 is gradually brought into contact with the belt.
In the step S4, after the guide cam 6 rotates 270 degrees, the belt is completely sleeved on the driving pulley 10, the belt is assembled in place, and the guide cam 6 and the belt limiting disc 3 are removed.
Adopt the engine belt assembly fixture of above-mentioned structure in belt assembling process, have following advantage:
1. the belt assembling tool realizes easy and labor-saving assembling of the engine belt, and improves the labor productivity;
2. the tool structure has no sharp corners and sharp edges, and the belt is not clamped or excessively pulled in the using process, so that the belt is protected;
3. the belt tool is light and small, has low cost, and saves the expensive cost of special equipment for belt assembly;
4. the diameter-variable assembly of the belt is realized through a camshaft: the belt gradually transits from the small diameter of the camshaft to the large diameter of the crankshaft belt wheel;
5. in order to make the belt gradually enter the driving belt wheel 10, a guiding curved surface is arranged, so that the belt is transferred to the driving belt wheel 10 while being pulled in a diameter-variable manner;
6. in order to prevent the belt from being separated from the water pump belt wheel, a belt limiting disc 3 is arranged, the belt is blocked by an inner end surface 605 of the limiting disc, and the belt limiting disc 3 can be fixed by a magnet 14 due to the limited belt separating force.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (8)
1. The utility model provides an engine belt assembly fixture, its characterized in that, including be used for suit belt and be used for installing the guide cam on driving pulley, set up on the guide cam and be used for along radial belt promotion to the guide portion on driving pulley in guide cam and driving pulley synchronous revolution process, set up the application of force bolt on the guide cam and be used for installing on first driven pulley and be used for carrying out spacing belt spacing dish on the belt on the first driven pulley, the guide portion has the guide face that is used for with the belt contact, driving pulley installs on engine crankshaft.
2. The engine belt assembling tooling of claim 1, wherein the guide surface is a curved surface, and the distance between the guide surface and the outer end surface of the guide cam is gradually reduced from the first end to the second end of the guide surface.
3. The engine belt assembling tool according to claim 1 or 2, characterized in that the outer surface of the guide cam comprises a first contact surface, a second contact surface and two connection surfaces connected with the first contact surface and the second contact surface, the first contact surface and the second contact surface are arc surfaces, the diameter of the first contact surface is larger than that of the second contact surface, the axes of the first contact surface and the second contact surface are parallel, the guide surface is connected with the two connection surfaces and the second contact surface, and the second contact surface is located between the two connection surfaces; during the rotation of the guide cam, the guide surface pushes the belt fitted over the second contact surface gradually onto the driving pulley.
4. The engine belt assembling tool according to any one of claims 1 to 3, further comprising a plurality of transmission rods arranged on the guide cam, wherein the driving pulley has a mounting hole into which the transmission rod is inserted.
5. The engine belt assembly tooling of any one of claims 1 to 4, wherein the belt limiting disc is mounted on the first driven pulley by a magnet.
6. The engine belt assembling method is characterized in that the engine belt assembling tool of any one of claims 1 to 5 is adopted, and the method comprises the following steps:
s1, installing the guide cam on the driving belt wheel, and installing the belt limiting disc on the first driven belt wheel;
s2, winding the belt on the guide cam and the first driven pulley, the second driven pulley and the third driven pulley of the engine;
s3, rotating the guide cam, and pushing the belt to the driving pulley along the radial direction under the action of the guide part;
and S4, after the guide cam rotates for a set angle, the belt is assembled in place, and the engine belt assembling device is taken down.
7. The engine belt assembly method of claim 6, wherein the driving pulley is mounted on an engine crankshaft, the first driven pulley is mounted on a main shaft of a generator, the second driven pulley is mounted on a main shaft of a water pump, and the third driven pulley is mounted on a main shaft of an air conditioner compressor.
8. The engine belt assembling method as claimed in claim 6 or 7, wherein the belt stopper disc is mounted on the first driven pulley by a magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911328800.5A CN110966366A (en) | 2019-12-20 | 2019-12-20 | Engine belt assembling tool and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911328800.5A CN110966366A (en) | 2019-12-20 | 2019-12-20 | Engine belt assembling tool and assembling method |
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| Publication Number | Publication Date |
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| CN110966366A true CN110966366A (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911328800.5A Pending CN110966366A (en) | 2019-12-20 | 2019-12-20 | Engine belt assembling tool and assembling method |
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| CN (1) | CN110966366A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10337204A1 (en) * | 2003-08-13 | 2005-03-17 | Bayerische Motoren Werke Ag | Assembly tool for integrating a transmission belt into a belt drive comprises a supporting hub structure for supporting a belt support edge on a guiding surface section |
| CN106763588A (en) * | 2016-12-22 | 2017-05-31 | 苏州宝特威机电有限公司 | The automatic leather fixing carrying device of automobile engine |
| CN209385591U (en) * | 2019-01-03 | 2019-09-13 | 武汉聚鹏精密制造有限责任公司 | A kind of coolant pump flexible belt installation tool |
| CN209604498U (en) * | 2019-01-28 | 2019-11-08 | 东风汽车集团有限公司 | Elastic belt auxiliary mounting tool and its mounting structure |
| CN211343902U (en) * | 2019-12-20 | 2020-08-25 | 湖北大冶汉龙汽车有限公司 | Engine belt assembly fixture |
-
2019
- 2019-12-20 CN CN201911328800.5A patent/CN110966366A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10337204A1 (en) * | 2003-08-13 | 2005-03-17 | Bayerische Motoren Werke Ag | Assembly tool for integrating a transmission belt into a belt drive comprises a supporting hub structure for supporting a belt support edge on a guiding surface section |
| CN106763588A (en) * | 2016-12-22 | 2017-05-31 | 苏州宝特威机电有限公司 | The automatic leather fixing carrying device of automobile engine |
| CN209385591U (en) * | 2019-01-03 | 2019-09-13 | 武汉聚鹏精密制造有限责任公司 | A kind of coolant pump flexible belt installation tool |
| CN209604498U (en) * | 2019-01-28 | 2019-11-08 | 东风汽车集团有限公司 | Elastic belt auxiliary mounting tool and its mounting structure |
| CN211343902U (en) * | 2019-12-20 | 2020-08-25 | 湖北大冶汉龙汽车有限公司 | Engine belt assembly fixture |
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