CN217271715U - Transmission mechanism and vibration test device - Google Patents
Transmission mechanism and vibration test device Download PDFInfo
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- CN217271715U CN217271715U CN202220786634.4U CN202220786634U CN217271715U CN 217271715 U CN217271715 U CN 217271715U CN 202220786634 U CN202220786634 U CN 202220786634U CN 217271715 U CN217271715 U CN 217271715U
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Abstract
The utility model relates to a mechanical testing technical field, concretely relates to drive mechanism and vibration test device, including drive assembly and tensioning assembly, tensioning assembly is suitable for and installs on the horizontal stand, and tensioning assembly includes tensioning structure and elastic component, and the one end and the tensioning structure of elastic component are connected, the other end and the horizontal stand butt of elastic component, and the elastic component has the bias force that drives tensioning structure and move towards drive belt one side, and tensioning structure has and drives the tensile tensioning state of drive belt under the drive of bias force. The tension structure is connected with one end of the elastic member, the tension structure can keep the transmission belt in the transmission assembly in a tensile tension state under the biasing force of the elastic member, when the horizontal platform moves along the horizontal direction, the transmission belt can generate displacement along with the movement of the horizontal platform, and the elastic member has the biasing force, so that the horizontal platform can continuously apply the biasing force to the transmission belt at different positions in the movement process, and the transmission belt can be continuously kept in the tension state.
Description
Technical Field
The utility model relates to a mechanical testing technical field, concretely relates to drive mechanism and vibration test device.
Background
Rotating parts such as gears are widely applied to transmission equipment, and vibration, fatigue and other tests need to be carried out in various working environments in order to test the fatigue strength and the service life of the rotating parts.
The existing testing device usually installs the gear box on the horizontal vibration table, drives the gear box to work through belt transmission, and tests the gear box under various comprehensive environments such as temperature, humidity, vibration and air pressure, but in the test, because the fixed position of the transmission shaft is unchanged, the vibration table can produce a large swing amplitude, so that the distance between the driving wheel and the driven wheel is constantly changed, and the transmission belt cannot be tensioned during working, thereby affecting the accuracy of the measuring result.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art drive belt can not keep the tensioning in the work, influences the defect of measuring result accuracy.
In order to solve the technical problem, the utility model provides a transmission mechanism, include:
the transmission assembly comprises a first transmission wheel, a second transmission wheel and a transmission belt, the first transmission wheel is rotatably arranged on the base frame, the second transmission wheel is rotatably arranged on the horizontal table, and the transmission belt is sleeved outside the first transmission wheel and the second transmission wheel;
a tensioning assembly adapted to be mounted on the horizontal table, the tensioning assembly comprising: the device comprises a tensioning structure and an elastic member, wherein one end of the elastic member is connected with the tensioning structure, the other end of the elastic member is abutted against the horizontal platform, and the elastic member has a biasing force for driving the tensioning structure to move towards one side of the transmission belt;
the tensioning structure is provided with a tensioning state which drives the transmission belt to stretch under the driving of the biasing force.
Further, in this transmission mechanism, the tension assembly further includes:
the installation support is suitable for being installed on the horizontal table, the elastic piece is sleeved on the installation support, the tensioning structure is installed on the installation support, and the tensioning structure is arranged in a sliding mode in the extending direction of the installation support.
Further, the transmission mechanism, the tensioning structure further includes a tensioning wheel and a sliding block, the sliding block is slidably disposed on the mounting bracket, and the tensioning wheel is rotatably disposed on the sliding block;
and in the tensioning state, the tensioning wheel is driven by the conveying belt to rotate.
Furthermore, in the transmission mechanism, the tensioning assembly further comprises at least one limiting block, and the limiting block is mounted on the mounting bracket and used for limiting the limit position of the sliding block.
The utility model also provides a vibration test device, a serial communication port, including foretell drive mechanism.
Further, this vibration test device still includes:
the base frame is internally provided with a cavity;
the horizontal table is arranged in the cavity and suitable for placing a test piece, and the second driving wheel is suitable for being connected with the test piece;
and the vibrator is connected with the horizontal table to drive the horizontal table to vibrate.
Further, the vibration test device is characterized in that the base frame is provided with a mounting hole, and the first transmission wheel is mounted in the mounting hole through a transmission shaft;
the sealing assembly is installed between the transmission shaft and the installation hole.
Further, this vibration testing apparatus, the seal assembly includes:
the sealing structure is sleeved outside the transmission shaft;
one end of the mounting structure is connected with the base frame, and the other end of the mounting structure is connected with the transmission shaft;
and the compression structure is sleeved outside the transmission shaft, and the compression structure and the mounting structure are arranged at intervals and form a mounting cavity suitable for mounting the sealing structure.
Further, this vibration testing apparatus, the mounting structure includes:
the transmission shaft is arranged on the bearing.
Further, this vibration testing apparatus, the sealing structure includes:
a sealing ring mounted in the mounting cavity;
the sealing sleeve is fixedly connected with the bearing seat, the other end of the sealing sleeve is fixedly connected with the compression structure, the sealing sleeve is sleeved outside the transmission shaft, and a sealing cavity suitable for mounting the sealing ring is formed between the sealing sleeve and the transmission shaft.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a transmission mechanism, including drive assembly and tensioning subassembly, wherein drive assembly includes first drive wheel, secondary drive wheel and drive belt, and first drive wheel rotationally installs on the bed frame, and the secondary drive wheel rotationally installs on the horizontal stand, and the drive belt cover is established outside first drive wheel and secondary drive wheel, and the tensioning subassembly is suitable for and installs on the horizontal stand, and the tensioning subassembly includes: the elastic part is provided with a biasing force for driving the tensioning structure to move towards one side of the transmission belt, and the tensioning structure is in a tensioning state for driving the transmission belt to stretch under the driving of the biasing force.
The tension structure is connected with one end of the elastic member, the tension structure can keep the tension state of the transmission belt sleeved outside the first transmission wheel and the second transmission wheel under the biasing force of the elastic member, when the horizontal table moves along the horizontal direction, the transmission belt can generate displacement along with the movement of the horizontal table, and the elastic member has the biasing force, so that the horizontal table can continuously apply the biasing force to the transmission belt at different positions in the movement process, and the transmission belt can continuously keep the tension state.
2. The utility model provides a drive mechanism, tension structure still include take-up pulley and sliding block, and sliding block slidable ground sets up on the installing support, and the take-up pulley rotationally sets up on the sliding block, and under the tensioning condition, the take-up pulley rotates under the drive of conveyer belt.
By providing rotatable tensioning wheels on the slide blocks, the rotating tensioning wheels reduce friction with the drive belt when a biasing force is applied to the drive belt to maintain tension, thereby reducing the effect of the tensioner assembly on the drive assembly.
3. The utility model provides a drive mechanism, tensioning assembly still include at least one stopper of installing on the installing support for limiting sliding block's extreme position.
Through setting up the stopper, in the tensioning subassembly is to drive assembly tensioning process, can carry on spacingly to the sliding block on the installing support, avoid leading to the sliding block to drop on the installing support because of the drive belt displacement is too big.
4. The utility model provides a vibration test device, including drive mechanism, bed frame, horizontal stand and vibrator, the bed frame is inside to be the cavity, and the horizontal stand setting is suitable for the test piece to be placed in the built on stilts intracavity, and the second drive wheel is suitable for to be connected with the test piece, and the vibrator is connected with the horizontal stand to drive the horizontal stand vibration.
By connecting the second driving wheel with the testing part, when the testing part is tested, the vibrator drives the horizontal table to vibrate, and the tensioning structure can keep the tensile tensioning state of the driving belt sleeved outside the first driving wheel and the second driving wheel under the biasing force of the elastic part, so that the inaccuracy of the testing result caused by the loosening of the driving belt is avoided, and the accuracy of the testing result is improved.
5. The utility model provides a vibration test device has the mounting hole on the bed frame, and first drive wheel passes through the transmission shaft to be installed in the mounting hole, and seal assembly installs between transmission shaft and mounting hole.
Through installing seal assembly between transmission shaft and mounting hole, improved the leakproofness of device, guaranteed that the device has good leakproofness when the transmission shaft rotates at a high speed, makes the experimental result more accurate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a tension assembly in a transmission mechanism according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a vibration testing apparatus provided in an embodiment of the present invention;
fig. 3 is a schematic view of a seal assembly in a vibration testing apparatus according to an embodiment of the present invention;
description of reference numerals:
1. a first drive pulley; 2. a transmission belt; 3. a tension pulley; 4. a limiting block; 5. a slider; 6. an elastic member; 7. mounting a bracket; 8. a second transmission wheel;
101. a base frame; 102. a horizontal table; 103. a guide rail; 104. an oil supply assembly; 105. a seal assembly; 106. A drive shaft; 107. testing the piece; 108. a connecting member; 109. a vibrator;
201. sealing sleeves; 202. a seal ring; 203. an end cap; 204. a stopper; 205. a compression member; 206. a bearing; 207. a bearing seat; 208. a spacer sleeve; 209. and (5) sealing rings.
Detailed Description
The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
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, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1, a transmission mechanism provided for this embodiment includes a transmission assembly and a tensioning assembly, wherein the transmission assembly includes a first transmission wheel 1, a second transmission wheel 8 and a transmission belt 2, the first transmission wheel 1 is rotatably installed on a base frame 101, the second transmission wheel 8 is rotatably installed on a horizontal table 102, the transmission belt 2 is sleeved outside the first transmission wheel 1 and the second transmission wheel 8, the tensioning assembly is installed on the horizontal table 102, the tensioning assembly includes: the tension structure, the elastic member 6 and the mounting bracket 7, wherein one end of the elastic member 6 is connected with the tension structure, the other end of the elastic member 6 is abutted with the horizontal table 102 through the mounting bracket 7, the elastic member 6 has a biasing force for driving the tension structure to move towards one side of the transmission belt 2, and the tension structure has a tension state for driving the transmission belt 2 to stretch under the driving of the biasing force.
By connecting the tension structure to one end of the elastic member 6, the tension structure can keep the transmission belt 2 sleeved outside the first transmission wheel 1 and the second transmission wheel 8 in a tensile tension state under the biasing force of the elastic member 6, when the horizontal platform 102 moves along the horizontal direction, the transmission belt 2 can generate displacement along with the movement of the horizontal platform 102, and the bias force of the elastic member 6 can enable the horizontal platform 102 to continuously apply the biasing force to the transmission belt 2 at different positions in the movement process, so that the transmission belt 2 can continuously keep in the tension state.
In this embodiment, the tensioning assembly further includes a sliding block 5 slidably disposed on the mounting bracket 7, the elastic element 6 is sleeved on the mounting bracket 7 and is located between the sliding block 5 and the mounting bracket 7, the tensioning wheel 3 is rotatably disposed on the sliding block 5, the tensioning wheel 3 is slidably disposed along the extending direction of the mounting bracket 7, and in a tensioned state, the tensioning wheel 3 can rotate under the driving of the conveyor belt. One end that is close to drive belt 2 on sliding block 5 is provided with stopper 4, and in the tensioning subassembly tensioning process to the drive assembly, stopper 4 can be spacing sliding block 5 on installing support 7, avoids droing on installing support 7 because of drive belt 2 displacement too big and lead to sliding block 5. By providing the rotatable tension pulley 3 on the sliding block 5, the rotatable tension pulley 3 can reduce friction with the transmission belt 2 when the elastic member 6 applies a biasing force to the transmission belt 2 to maintain tension, thereby reducing the influence of the tension assembly on the transmission assembly.
The present embodiment does not limit the sliding block 5, and in order to meet the practical situation, the sliding block 5 is set as a set of connecting sleeves disposed on the mounting bracket 7.
The elastic member 6 is not limited in this embodiment, and in order to meet the practical situation, the elastic member 6 in this embodiment is a spring.
Example 2
As shown in fig. 2 and 3, the vibration testing apparatus provided for this embodiment includes the transmission mechanism in embodiment 1, a base frame 101, a horizontal table 102 and a vibrator 109, where the base frame 101 is a cavity, the horizontal table 102 is disposed on the guide rail 103 inside the cavity, and the oil supply unit 104 can supply lubricating oil to the guide rail 103 to reduce the friction force of the horizontal table 102 moving on the guide rail 103. The test piece 107 is placed on the table top of the horizontal table 102, the second driving wheel 8 is connected with the test piece 107, and the vibrator 109 is connected with one end of the horizontal table 102 through a connecting piece 108 so as to drive the horizontal table 102 to vibrate in the horizontal direction.
By connecting the second transmission wheel 8 with the test piece 107, when the test piece 107 is tested, the vibrator 109 drives the horizontal table 102 to vibrate, and the tension structure can keep the tension state of the transmission belt 2 sleeved outside the first transmission wheel 1 and the second transmission wheel 8 under the biasing force of the elastic piece 6, so that the inaccuracy of the test result caused by the looseness of the transmission belt 2 is avoided, and the accuracy of the test result is improved.
This embodiment does not do the restriction to the piece that awaits measuring, for the coincidence real situation, the piece that awaits measuring is the gear box in this embodiment.
As shown in fig. 2, in the present embodiment, a mounting hole is formed in the base frame 101, the first transmission wheel 1 is mounted in the mounting hole through the transmission shaft 106, the first transmission wheel 1 transmits power to the gear box, and the sealing assembly 105 is mounted between the transmission shaft 106 and the mounting hole, so that good sealing performance between the rotating shaft and the base frame 101 can be ensured during the high-speed rotation of the transmission shaft 106.
This embodiment does not do the restriction to bed frame 101, and for the realistic conditions of coincidence, bed frame 101 adopts the interface box in this embodiment, is connected with environmental simulation device on the interface box, can carry out multiple environmental simulation such as low temperature, vacuum to the interface box inside.
As shown in fig. 3, the sealing assembly 105 includes a sealing structure, a mounting structure and a compression structure, the mounting structure includes a bearing seat 207 and a bearing 206, the bearing seat 207 is mounted on a mounting hole of the interface box, the bearing 206 is mounted in the bearing seat 207, the transmission shaft 106 is mounted on the bearing 206, the compression structure is sleeved on the outer side of the transmission shaft 106, and the sealing structure is sleeved on the outer side of the transmission shaft 106 and is mounted in a mounting cavity formed by the compression structure and the mounting structure at intervals.
In this embodiment, the sealing structure includes a sealing ring 202 and a sealing sleeve 201, the sealing ring 202 is in a labyrinth shape and is installed in the installation cavity, the sealing ring 202 and the sealing sleeve 201 are in clearance fit, the sealing ring 202 and the sealing sleeve 201 do not contact with each other in relative movement, and when the transmission shaft 106 operates at a high rotation speed, the interface box can be ensured to have good sealing performance. One end of the sealing sleeve 201 is fixedly connected with the bearing seat 207, the other end of the sealing sleeve 201 is fixedly connected with the compression structure, the sealing sleeve 201 is sleeved on the outer side of the transmission shaft 106, and a sealing cavity suitable for installing the sealing ring 202 is formed between the sealing sleeve 201 and the transmission shaft 106.
In this embodiment, grooves are formed in the transmission shaft 106 and the sealing ring 202, a stop piece 204 is installed in the grooves, the sealing ring 202 and the transmission shaft 106 can rotate synchronously, the compression structure comprises an end cover 203 and a compression piece 205, one end of the end cover 203 is sleeved on the transmission shaft 106, the other end of the end cover 203 is fixed on the sealing sleeve 201 through a fastener, a spacer 208 is sleeved at a contact position of the transmission shaft 106 and the sealing sleeve 201 and the end cover 203, friction in the high-speed rotation process of the transmission shaft 106 can be reduced, a sealing ring 209 is arranged between a contact end of the sealing ring 202 and the spacer 208 and between the sealing sleeve 201 and the bearing seat 207, the sealing performance of the device is improved, and when the transmission shaft 106 operates at a high rotating speed, the interface box can be guaranteed to have good sealing performance, and the test result is more accurate.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A transmission mechanism, comprising:
the transmission assembly comprises a first transmission wheel (1), a second transmission wheel (8) and a transmission belt (2), the first transmission wheel (1) is rotatably arranged on the base frame (101), the second transmission wheel (8) is rotatably arranged on the horizontal table (102), and the transmission belt (2) is sleeved outside the first transmission wheel (1) and the second transmission wheel (8);
a tensioning assembly adapted to be mounted on the horizontal table (102), the tensioning assembly comprising: a tensioning structure and an elastic member (6), wherein one end of the elastic member (6) is connected with the tensioning structure, the other end of the elastic member (6) is abutted with the horizontal table (102), and the elastic member (6) has a biasing force for driving the tensioning structure to move towards one side of the transmission belt (2);
the tensioning structure is in a tensioning state which drives the transmission belt (2) to stretch under the driving of the biasing force.
2. The transmission mechanism as recited in claim 1, wherein the tension assembly further comprises:
the mounting support (7) is suitable for being mounted on the horizontal table (102), the elastic piece (6) is sleeved on the mounting support (7), the tensioning structure is mounted on the mounting support (7), and the tensioning structure is arranged in a sliding mode along the extending direction of the mounting support (7).
3. The transmission mechanism according to claim 2, wherein the tensioning structure further comprises a tensioning wheel (3) and a sliding block (5), the sliding block (5) being slidably arranged on the mounting bracket (7), the tensioning wheel (3) being rotatably arranged on the sliding block (5);
and in the tensioning state, the tensioning wheel (3) is driven by the transmission belt (2) to rotate.
4. Transmission according to claim 3, characterized in that said tensioning assembly further comprises at least one stop block (4), said stop block (4) being mounted on said mounting bracket (7) for limiting the extreme position of said sliding block (5).
5. A vibration testing apparatus comprising the transmission mechanism according to any one of claims 1 to 4.
6. The vibration testing apparatus of claim 5, further comprising:
the base frame (101) is internally provided with a cavity;
the horizontal table (102) is arranged in the cavity and is suitable for placing a test piece (107), and the second driving wheel (8) is suitable for being connected with the test piece (107);
the vibrator (109) is connected with the horizontal table (102) to drive the horizontal table (102) to vibrate.
7. The vibration testing apparatus according to claim 6, wherein the base frame (101) has a mounting hole therein, and the first driving wheel (1) is mounted in the mounting hole through a driving shaft (106);
further comprising a seal assembly (105), the seal assembly (105) being mounted between the drive shaft (106) and the mounting bore.
8. The vibration testing apparatus according to claim 7, wherein the seal assembly (105) comprises:
the sealing structure is sleeved outside the transmission shaft (106);
a mounting structure, one end of the mounting structure is connected with the base frame (101), and the other end of the mounting structure is connected with the transmission shaft (106);
the pressing structure is sleeved outside the transmission shaft (106), and the pressing structure and the mounting structure are arranged at intervals and form a mounting cavity suitable for mounting of the sealing structure.
9. The vibration testing apparatus of claim 8, wherein the mounting structure comprises:
the bearing seat (207) is installed on the base frame (101), the bearing (206) is installed in the bearing seat (207), and the transmission shaft (106) is installed on the bearing (206).
10. A vibration testing apparatus according to claim 9, wherein said sealing structure comprises:
a sealing ring (202) mounted within the mounting cavity;
the sealing device comprises a sealing sleeve (201), one end of the sealing sleeve (201) is fixedly connected with a bearing seat (207), the other end of the sealing sleeve is fixedly connected with a compression structure, the sealing sleeve (201) is sleeved outside a transmission shaft (106), and a sealing cavity suitable for installation of a sealing ring (202) is formed between the sealing sleeve (201) and the transmission shaft (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220786634.4U CN217271715U (en) | 2022-04-06 | 2022-04-06 | Transmission mechanism and vibration test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220786634.4U CN217271715U (en) | 2022-04-06 | 2022-04-06 | Transmission mechanism and vibration test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217271715U true CN217271715U (en) | 2022-08-23 |
Family
ID=82873817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220786634.4U Active CN217271715U (en) | 2022-04-06 | 2022-04-06 | Transmission mechanism and vibration test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217271715U (en) |
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2022
- 2022-04-06 CN CN202220786634.4U patent/CN217271715U/en active Active
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