A synchronous pulley parallelism adjustment device

Abstract

The invention discloses a synchronous pulley parallelism adjustment device, which relates to the field of mechanical transmission, and comprises: a left-side support frame of a generator, a right-side support frame of a generator and a parallelism adjustment shaft, wherein the support frames on both sides are respectively connected to a left-side housing and a right-side housing of the generator through the parallelism adjustment shaft; a left through hole is provided on the left-side support frame of the generator, and the left through hole is connected to one end of the parallelism adjustment shaft through a parallel mechanism bushing, and the aperture of the parallel structure bushing gradually expands from one end to the other end of the parallelism adjustment shaft; a right through hole is provided on the right-side support frame of the generator, and an adjustment component is arranged on one side of the right-side support frame of the generator, and the other end of the parallelism adjustment shaft is movably inserted into the right through hole and connected to the adjustment component, and the adjustment component can drive the other end of the parallelism adjustment shaft to swing with the end with a smaller aperture of the parallel structure bushing as a fulcrum; the device has the characteristics of large adjustment range, high precision, high flexibility, novel structure, economical process cost, etc.

Description

Technical Field

[0001] The invention belongs to the field of mechanical transmission, and more specifically, relates to a synchronous pulley parallelism adjustment device. Background Art

[0002] Industrial drones and other long-flight aircraft are usually equipped with generators inside the body. The energy source of the generator is often the aircraft's engine. The engine drives the generator through a synchronous belt drive to generate electricity. In synchronous belt transmission, the parallelism of the two pulley axes must be high, otherwise the synchronous belt will deviate or even jump out of the pulley during operation. Non-parallel axes will cause uneven pressure, causing wear or even breakage of the synchronous belt. The existing method for adjusting the parallelism of synchronous pulleys requires that the equipment be stopped and corrected according to the direction of the synchronous belt deviation after running for a period of time under no-load conditions. This method often has the disadvantages of poor flexibility, the need for repeated adjustments, and different deviation conditions under no-load and load conditions. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the prior art and to provide a synchronous pulley parallelism adjustment device, which adopts an adjustment component to adjust the parallelism adjustment shaft so that the parallelism adjustment shaft rotates along the parallel structure bushing as a fulcrum, thereby driving the rotation of the left side shell of the generator, thereby realizing the adjustment of the parallelism of the synchronous pulley. The device has the characteristics of large adjustment range, high precision, high flexibility, novel structure, and economical process cost.

[0004] In order to achieve the above object, the present invention provides a synchronous pulley parallelism adjustment device, comprising:

[0005] A left side support frame of a generator, a right side support frame of a generator and a parallelism adjustment shaft, wherein the left side support frame of the generator and the right side support frame of the generator are respectively connected to the left side housing and the right side housing of the generator through the parallelism adjustment shaft;

[0006] A left through hole is provided on the left support frame of the generator, and the inner peripheral side wall of the left through hole is connected to the outer peripheral side wall of one end of the parallelism adjustment shaft through a parallel mechanism bushing, and the aperture of the parallel structure bushing gradually expands from one end of the parallelism adjustment shaft to the other end of the parallelism adjustment shaft;

[0007] A right through hole is provided on the right side support frame of the generator, and an adjustment component is provided on one side of the right side support frame of the generator. The other end of the parallelism adjustment shaft is movably passed through the right through hole and connected to the adjustment component. The adjustment component can drive the other end of the parallelism adjustment shaft to swing with the end with a smaller aperture of the parallel structure bushing as a fulcrum.

[0008] Optionally, a first synchronous pulley is provided on the left housing of the generator, and the first synchronous pulley is connected to a second synchronous pulley on the engine through a synchronous belt.

[0009] Optionally, the left housing is located on the left side of the left support frame of the generator, and the right housing is located on the left side of the right support frame of the generator.

[0010] Optionally, it also includes a long support column and a short support column, and the long support column and the short support column are sleeved in the middle of the parallelism adjustment shaft, and the side of the long support column close to the left support frame of the generator is a cone that gradually narrows from right to left, and the side of the short support column close to the right support frame of the generator is a cone that gradually narrows from left to right.

[0011] Optionally, a shoulder is provided in the middle portion of the parallelism adjustment shaft along the circumferential direction, the other side of the short support column is fitted with one side of the shoulder, one side of the right side housing of the generator is fitted with the other side of the shoulder, and the other side of the right side housing of the generator is fitted with the other side of the long support column.

[0012] Optionally, the inner peripheral side wall of the right side housing of the generator is connected to the outer peripheral side wall of the parallelism adjustment shaft through a sleeve.

[0013] Optionally, the inner peripheral side wall of the left side housing of the generator is connected to the outer peripheral side wall of the parallelism adjustment shaft through a shoulder sleeve.

[0014] Optionally, the adjustment component includes:

[0015] A first adjustment plate is arranged on the left side of the right support frame of the generator, one end of the first adjustment plate is provided with a waist-shaped hole, and the other end of the parallelism adjustment shaft is movably inserted into the waist-shaped hole;

[0016] A second adjustment plate is arranged on the right side of the right support frame of the generator, one end of the second adjustment plate is provided with a circular tapered hole, the other end of the parallelism adjustment shaft is passed through the circular tapered hole, and the circular tapered hole gradually expands from right to left;

[0017] A leveling screw seat is connected to the right support frame of the generator, and a nut is provided on the leveling screw seat;

[0018] A leveling screw is threadedly connected to the nut, and the other end of the first adjusting piece and the other end of the second adjusting piece are both connected to the other end of the leveling screw.

[0019] Optionally, the first adjusting piece includes a first limiting portion and a first connecting portion, one end of the first limiting portion is connected to one end of the first connecting portion to form an L-shape, the other end of the first limiting portion is provided with the waist-shaped hole, and the other end of the first connecting portion is provided with a first notch, the second adjusting piece includes a second limiting portion and a second connecting portion, one end of the second limiting portion is connected to one end of the second connecting portion to form an L-shape, the other end of the second limiting portion is provided with the circular tapered hole, and the other end of the second connecting portion is provided with a second notch, and the other end of the leveling screw is provided with a groove along the circumferential side wall, and the first notch and the second notch are snap-fitted with the groove.

[0020] Optionally, an external hexagonal head is provided at one end of the leveling screw, and the axial direction of the leveling screw is the same as the direction of the line connecting the centers of the circular arc parts of the waist-shaped holes.

[0021] The present invention provides a synchronous pulley parallelism adjustment device, which has the following beneficial effects:

[0022] 1. The parallel structure bushing of the adjustment device gradually expands from one end of the parallelism adjustment shaft to the other end, so that the parallelism adjustment shaft can swing with the end with the smaller aperture of the parallel structure bushing as a fulcrum to realize the rotation of the parallelism adjustment shaft, drive the left housing of the generator and the first synchronous pulley fixed thereon to adjust, and ensure the parallelism of the two synchronous pulleys is consistent;

[0023] 2. One end of the long support column and the short support column of the adjustment device are both provided with a cone, so that the cone of the long support column is inserted into the parallel mechanism bushing, and the cone of the short support column is inserted into the waist-shaped hole of the second adjustment plate, so that the distance between the generator support frames on both sides remains unchanged, and the left housing of the generator and the first synchronous pulley installed thereon can swing;

[0024] 3. The adjusting assembly of the adjusting device is provided with a first adjusting plate with a waist-shaped hole and a second adjusting plate with a circular tapered hole on the right side of the right support frame of the generator. The parallelism adjusting shaft is penetrated through the waist-shaped hole and the circular tapered hole at the same time. The position of the leveling bolt in the hexagonal nut is adjusted. The adjustment accuracy is high and the operation is convenient. The parallelism of the first synchronous pulley and the second synchronous pulley is achieved by swinging the parallelism adjusting shaft with the two adjusting plates.

[0025] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0027] Figure 1 A schematic structural diagram of a synchronous pulley parallelism adjustment device according to an embodiment of the present invention is shown.

[0028] Figure 2 A schematic diagram showing the connection relationship between a synchronous pulley and the parallelism adjustment device according to an embodiment of the present invention is shown.

[0029] Figure 3 A schematic structural diagram of a first adjustment sheet according to an embodiment of the present invention is shown.

[0030] Figure 4 A schematic structural diagram of a second adjustment sheet according to an embodiment of the present invention is shown.

[0031] Description of reference numerals:

[0032] 1. Support frame on the left side of the generator; 2. Support frame on the right side of the generator; 3. Parallelism adjustment shaft; 4. Left side housing of the generator; 5. Right side housing of the generator; 6. Parallel structure bushing; 7. First synchronous pulley; 8. Synchronous belt; 9. Second synchronous pulley; 10. Long support column; 11. Short support column; 12. Shoulder; 13. Sleeve; 14. Shoulder sleeve; 15. First adjustment plate; 16. Waist-shaped hole; 17. Second adjustment plate; 18. Circular tapered hole; 19. Leveling screw seat 20. Nut; 21. Leveling screw; 22. First notch; 23. Second notch; 24. External hexagonal head. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0034] The present invention provides a synchronous pulley parallelism adjustment device, comprising:

[0035] A left side support frame of the generator, a right side support frame of the generator and a parallelism adjustment shaft, wherein the left side support frame of the generator and the right side support frame of the generator are respectively connected to the left side housing and the right side housing of the generator through the parallelism adjustment shaft;

[0036] A left through hole is opened on the left support frame of the generator, and the inner peripheral side wall of the left through hole is connected to the outer peripheral side wall of one end of the parallelism adjustment shaft through a parallel mechanism bushing, and the aperture of the parallel structure bushing gradually expands from one end of the parallelism adjustment shaft to the other end of the parallelism adjustment shaft;

[0037] A right through hole is opened on the right support frame of the generator, and an adjustment component is arranged on one side of the right support frame of the generator. The other end of the parallelism adjustment shaft is movably passed through the right through hole and connected to the adjustment component. The adjustment component can drive the other end of the parallelism adjustment shaft to swing with the end with a small aperture of the parallel structure bushing as a fulcrum.

[0038] Specifically, the adjusting device includes a parallelism adjusting shaft and a left side shell of a generator, a right side shell of a generator, a left side support frame of a generator, and a right side support frame of a generator, the support frames on both sides support the parallelism adjusting shaft, a parallel structure bushing is arranged in the left through hole, and the inner diameter of the parallel structure bushing gradually expands from one end of the parallelism adjusting shaft to the other end, in addition, there is a certain amount of shaking of the parallelism adjusting shaft in the right through hole, and the other end of the parallelism adjusting shaft can be driven by the adjusting component, so controlling the adjusting component can make the parallelism adjusting shaft rotate at a certain angle with the connection point between the parallelism adjusting shaft and the parallel structure bushing as the center, so that the shells on both sides rotate together with the parallelism adjusting shaft, so as to realize the adjustment of the parallelism of the synchronous pulley on the left side shell of the generator, and the adjusting device has a light and simple structure and is easy to operate.

[0039] Optionally, a first synchronous pulley is provided on the left housing of the generator, and the first synchronous pulley is connected to a second synchronous pulley on the engine through a synchronous belt.

[0040] Specifically, a first synchronous pulley is provided on the outer side of the left side housing of the generator, and the second synchronous pulley on the engine is linked with the first synchronous pulley through a synchronous belt. The adjusting device can correct the parallelism of the first synchronous pulley at any time to maintain the parallelism of the two synchronous pulleys, avoid the synchronous belt from running off the pulley or jumping out of the pulley, and ensure that the engine drives the generator to rotate synchronously.

[0041] Optionally, the left housing of the generator is located on the left side of the left supporting frame of the generator, and the right housing of the generator is located on the left side of the right supporting frame of the generator.

[0042] Specifically, the left side support frame and the right side support frame of the generator support the parallelism adjustment shaft, the left side shell of the generator and the right side shell of the generator are respectively arranged on both sides of the left side support frame of the generator and are aligned with the parallelism adjustment shaft, the adjustment component is fixed on the right side shell of the generator and controls the parallelism adjustment shaft, so that the two ends of the parallelism adjustment shaft rotate about the position fulcrum of the left side shell of the generator, so that the parallelism of the left side shell of the generator outside the support frames on both sides can be adjusted; in addition, the shells on both sides of the generator and the support frames on both sides of the generator are installed in a staggered manner, the left side shell of the generator is arranged on the left side of the left side support frame of the generator, and the right side shell of the generator is arranged on the right side of the right side support frame of the generator, thereby increasing the stability of the parallelism adjustment and the swing amplitude of the parallelism adjustment shaft.

[0043] Optionally, it also includes a long support column and a short support column, which are sleeved on the middle part of the parallelism adjustment shaft. The side of the long support column close to the left support frame of the generator is tapered from right to left, and the side of the short support column close to the right support frame of the generator is tapered from left to right.

[0044] Specifically, the long support column and the short support column, the long support column is provided with a conical surface shape on the side close to the left support frame of the generator, and the short support column is also provided with a conical surface shape on the side close to the right support frame of the generator. The two support columns and the parallelism adjustment shaft adopt a transition fit to ensure that when the adjustment component drives the parallelism adjustment shaft to be in the extreme position of rotation, the generator casings on both sides will not be deformed due to excessive force. In addition, the generator casings and the first synchronous pulleys on both sides can be firmly connected with the parallelism adjustment shaft to achieve synchronous swing, which is beneficial to the parallelism adjustment of the synchronous pulleys; the taper of the conical end faces of the long support column and the short support column can determine the rotation amplitude of the parallelism adjustment shaft, and the taper of the two supported end faces can be designed according to the adjustment angle of the parallelism adjustment shaft.

[0045] Optionally, a shoulder is provided in the middle of the parallelism adjustment shaft along the circumferential direction, the other side of the short support column is fitted with one side of the shoulder, one side of the right side housing of the generator is fitted with the other side of the shoulder, and the other side of the right side housing of the generator is fitted with the other side of the long support column.

[0046] Specifically, a shoulder is provided in the middle of the parallelism adjustment shaft, and the short support column is fitted with one side of the shoulder to ensure that the two are firmly fitted. A right-side housing of the generator is provided between the long support column and the shoulder, and the long support columns and the shoulders are fitted on both sides of the right-side housing of the generator to ensure the stability of the sleeve positions of the short support column, the long support column and the right-side housing of the generator on the parallelism adjustment shaft; the long support column and the short support column are transitionally matched with the parallelism adjustment shaft, and the long support column and the shoulder clamp both sides of the right-side housing of the generator. In addition, the conical shape of the short support column is inserted from one side of the adjustment component to the inside of the waist-shaped hole, and the adjustment component drives the short support column to move The support column can move up and down, and such a connection structure will form an adjustment component that drives the parallelism adjustment shaft to move through the short support column, and the short support column fits and squeezes the shaft shoulder, and the shaft shoulder fits tightly with the right side housing of the generator and the long support column, so that the parallelism adjustment shaft can only rotate along the connection point between the parallelism adjustment shaft and the parallel structure bushing as the center of the circle, and will not cause the parallelism adjustment shaft to move in other directions in the parallel structure bushing, ensuring that the parallelism adjustment shaft only adjusts the parallelism of the first synchronous pulley, and will not change the change in the distance between the planes where the first synchronous pulley and the second synchronous pulley are located, thereby effectively ensuring the accuracy of the adjustment.

[0047] Optionally, the inner peripheral side wall of the right side housing of the generator is connected to the outer peripheral side wall of the parallelism adjustment shaft through a sleeve.

[0048] Specifically, the right side housing of the generator is connected to the parallelism adjustment shaft through a sleeve, and the parallelism adjustment shaft and the sleeve adopt a transition fit, so that the parallelism adjustment shaft and the sleeve are easy to disassemble and assemble, and the coaxiality of the parallelism adjustment shaft and the sleeve can also be ensured, which can improve the fixing strength of the relative position of the parallelism adjustment shaft to the right side housing of the generator.

[0049] Optionally, the inner peripheral side wall of the left side housing of the generator is connected to the outer peripheral side wall of the parallelism adjustment shaft through a shoulder sleeve.

[0050] Specifically, the shoulder sleeve and the parallelism adjustment shaft also adopt a transition fit to ensure the connection stability between the left side housing of the generator and the parallelism adjustment shaft. When the adjustment assembly drives the other end of the parallelism adjustment shaft to rotate, the left side housing of the generator on one end of the parallelism adjustment shaft can be accurately rotated, so that the axial position of the first synchronous pulley on the left side housing of the generator is adjusted to ensure the parallelism of the two synchronous pulleys, make the transmission more stable, and avoid the synchronous belt from running off track or breaking.

[0051] Optionally, the adjustment component includes:

[0052] A first adjustment plate is arranged on the left side of the right support frame of the generator, one end of the first adjustment plate is provided with a waist-shaped hole, and the other end of the parallelism adjustment shaft is movably inserted into the waist-shaped hole;

[0053] The second adjusting plate is arranged on the right side of the right supporting frame of the generator, one end of the second adjusting plate is provided with a circular tapered hole, the other end of the parallelism adjusting shaft is passed through the circular tapered hole, and the circular tapered hole gradually expands from right to left;

[0054] The leveling screw seat is connected to the right support frame of the generator, and a nut is arranged on the leveling screw seat;

[0055] The leveling screw is threadedly connected with the nut, and the other end of the first adjusting piece and the other end of the second adjusting piece are both connected with the other end of the leveling screw.

[0056] Specifically, the adjustment assembly includes a first adjustment plate and a second adjustment plate, a leveling screw seat, and a leveling screw. The distance that the leveling screw extends on the leveling screw seat drives the first adjustment plate and the second adjustment plate to move along the axial direction of the leveling screw. The circular tapered hole of the second adjustment plate drives the parallelism adjustment shaft to move, and the waist-shaped hole of the first adjustment plate limits the moving direction of the parallelism adjustment shaft, so that the parallelism adjustment shaft can rotate in a set direction to ensure that the parallelism adjustment shaft adjusts the axial direction of the left side housing of the generator to keep the axial directions of the two synchronous pulleys parallel.

[0057] Optionally, the first adjusting piece includes a first limiting portion and a first connecting portion, one end of the first limiting portion is connected to one end of the first connecting portion to form an L-shape, the other end of the first limiting portion is provided with a waist-shaped hole, and the other end of the first connecting portion is provided with a first notch, and the second adjusting piece includes a second limiting portion and a second connecting portion, one end of the second limiting portion is connected to one end of the second connecting portion to form an L-shape, the other end of the second limiting portion is provided with a circular tapered hole, and the other end of the second connecting portion is provided with a second notch, and the other end of the leveling screw is provided with a groove along the circumferential side wall, and the first notch and the second notch are snap-fitted with the groove.

[0058] Specifically, a groove is provided on one side of the leveling screw close to the two leveling plates, and the groove is provided on the side wall along the circumferential direction of the leveling screw. The two leveling plates are L-shaped, and the first connecting parts and the second connecting parts of the two leveling plates are clamped on the groove. The leveling screw can drive the two leveling plates to move along the axial direction of the leveling screw. The end with the smaller aperture of the circular tapered hole is in contact with the parallelism adjustment shaft, and can move with the parallelism adjustment shaft. The end with the larger aperture of the circular tapered hole can limit the range of movement of the parallelism adjustment shaft. In addition, the length of the line connecting the center of the circular arc part of the waist-shaped hole can also limit the range of movement of the parallelism adjustment shaft. The larger aperture of the circular tapered hole and the size of the waist-shaped hole can be set according to the angle at which the parallelism adjustment shaft needs to rotate.

[0059] Optionally, an external hexagonal head is provided at one end of the leveling screw, and the axial direction of the leveling screw is the same as the direction of the line connecting the centers of the circular arc parts of the waist-shaped hole.

[0060] Specifically, an external hexagonal head is provided at one end of the leveling screw. When it is necessary to adjust the distance that the leveling screw extends in the leveling bolt seat, a wrench can be used to operate the external hexagonal head. The operation is simple. The distance between the opposite sides of the external hexagonal head should be smaller than the thread diameter of the leveling screw. The leveling screw, leveling screw seat and hexagonal nut use threads of the same standard, which is conducive to later processing and maintenance. The size of the thread pitch determines the swing amplitude of the parallelism adjustment shaft when the screw rotates at the same angle. This requires advance design and production according to the required rotation angle of the parallelism adjustment shaft.

[0061] Example

[0062] like Figures 1 to 4 As shown, the present invention provides a synchronous pulley parallelism adjustment device, comprising:

[0063] A left side support frame 1 of the generator, a right side support frame 2 of the generator and a parallelism adjustment shaft 3, wherein the left side support frame 1 of the generator and the right side support frame 2 of the generator are respectively connected to the left side housing 4 of the generator and the right side housing 5 of the generator through the parallelism adjustment shaft 3;

[0064] A left through hole is provided on the left support frame 1 of the generator, and the inner peripheral side wall of the left through hole is connected to the outer peripheral side wall of one end of the parallelism adjustment shaft 1 through the parallel mechanism bushing 6, and the aperture of the parallel mechanism bushing 6 gradually expands from one end of the parallelism adjustment shaft 1 to the other end of the parallelism adjustment shaft 1;

[0065] A right through hole is opened on the right side support frame 2 of the generator, and an adjustment component is arranged on one side of the right side support frame 2 of the generator. The other end of the parallelism adjustment shaft 1 is movably passed through the right through hole and connected to the adjustment component. The adjustment component can drive the other end of the parallelism adjustment shaft 1 to swing with the end with a small aperture of the parallel structure bushing 6 as a fulcrum.

[0066] In this embodiment, a first synchronous pulley 7 is provided on the left housing 4 of the generator, and the first synchronous pulley 7 is connected to a second synchronous pulley 9 on the engine through a synchronous belt 8 .

[0067] In this embodiment, the left housing 4 of the generator is located on the left side of the left supporting frame 1 of the generator, and the right housing 5 of the generator is located on the left side of the right supporting frame 2 of the generator.

[0068] In this embodiment, a long support column 10 and a short support column 11 are also included. The long support column 10 and the short support column 11 are sleeved in the middle of the parallelism adjustment shaft 1. The side of the long support column 10 close to the left support frame 1 of the generator is tapered from right to left, and the side of the short support column 11 close to the right support frame 2 of the generator is tapered from left to right.

[0069] In this embodiment, a shoulder 12 is provided in the middle part of the parallelism adjustment shaft 1 along the circumferential direction, the other side of the short support column 11 is fitted with one side of the shoulder 12, one side of the right side housing 5 of the generator is fitted with the other side of the shoulder 12, and the other side of the right side housing 5 of the generator is fitted with the other side of the long support column 10.

[0070] In this embodiment, the inner peripheral side wall of the right housing 5 of the generator is connected to the outer peripheral side wall of the parallelism adjustment shaft 1 through the sleeve 13 .

[0071] In this embodiment, the inner peripheral side wall of the left housing 4 of the generator is connected to the outer peripheral side wall of the parallelism adjustment shaft 1 through a shaft shoulder sleeve 14 .

[0072] In this embodiment, the adjustment component includes:

[0073] A first adjusting piece 15 is arranged on the left side of the right support frame 2 of the generator. A waist-shaped hole 16 is opened at one end of the first adjusting piece 15, and the other end of the parallelism adjusting shaft 1 is movably inserted into the waist-shaped hole 16;

[0074] The second adjusting piece 17 is arranged on the right side of the right supporting frame 2 of the generator. A circular tapered hole 18 is opened at one end of the second adjusting piece 17. The other end of the parallelism adjusting shaft 1 is passed through the circular tapered hole 18. The circular tapered hole 18 gradually expands from right to left.

[0075] The leveling screw seat 19 is connected to the right support frame 2 of the generator, and a nut 20 is provided on the leveling screw seat 19;

[0076] The leveling screw 21 is threadedly connected to the nut 20 , and the other end of the first adjusting piece 15 and the other end of the second adjusting piece 17 are both connected to the other end of the leveling screw 21 .

[0077] In this embodiment, the first adjusting piece 15 includes a first limiting portion and a first connecting portion, one end of the first limiting portion is connected to one end of the first connecting portion to form an L-shape, the other end of the first limiting portion is provided with a waist-shaped hole 16, and the other end of the first connecting portion is provided with a first notch 22, the second adjusting piece 17 includes a second limiting portion and a second connecting portion, one end of the second limiting portion is connected to one end of the second connecting portion to form an L-shape, the other end of the second limiting portion is provided with a circular tapered hole, and the other end of the second connecting portion is provided with a second notch 23, and the other end of the leveling screw 21 is provided with a groove along the circumferential side wall, and the first notch 22 and the second notch 23 are snap-fitted with the groove.

[0078] In this embodiment, an external hexagonal head 24 is provided at one end of the leveling screw 21 , and the axial direction of the leveling screw 21 is the same as the direction of the line connecting the centers of the arc portions of the waist-shaped holes 16 .

[0079] In summary, the parallelism adjustment device uses an open-end wrench to adjust the external hexagonal head 24 at the end of the leveling screw 21 to achieve the axial movement of the leveling screw 21. The leveling screw 21 is connected to the first adjustment plate 15 and the second adjustment plate 17 through a groove, thereby transmitting the linear motion of the leveling screw 21 along its axial direction to the two adjustment plates; the first adjustment plate 15 and the second adjustment plate 17 are interconnected with the parallelism adjustment shaft 3, so the movement of the two adjustment plates can drive the parallelism adjustment shaft 3 to rotate with the connection point of the end with a small aperture of the parallel structure bushing 6 as the center of the circle. In addition, the left side housing 4 of the generator and the right side housing 5 of the generator are respectively connected to the parallelism adjustment shaft 3 through the shoulder sleeve 14 and the sleeve 13, so the rotation of the parallelism adjustment shaft 3 will cause the rotation of the left side housing 4 of the generator. Since the left side housing 4 of the generator is fixedly connected to the first synchronous pulley 7, this adjustment process will cause the parallelism of the first synchronous pulley 7 and the second synchronous pulley 9 to change, ensuring that the axial directions of the two synchronous pulleys are parallel, and avoiding the phenomenon of deviation or breakage of the synchronous belt 8.

[0080] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A synchronous pulley parallelism adjustment device, It is characterized in that include: A left side support frame of a generator, a right side support frame of a generator and a parallelism adjustment shaft, wherein the left side support frame of the generator and the right side support frame of the generator are respectively connected to the left side housing and the right side housing of the generator through the parallelism adjustment shaft; A left through hole is provided on the left support frame of the generator, and the inner peripheral side wall of the left through hole is connected to the outer peripheral side wall of one end of the parallelism adjustment shaft through a parallel mechanism bushing, and the aperture of the parallel mechanism bushing gradually expands from one end of the parallelism adjustment shaft to the other end of the parallelism adjustment shaft; A right through hole is provided on the right side support frame of the generator, an adjustment component is provided on one side of the right side support frame of the generator, the other end of the parallelism adjustment shaft is movably inserted into the right through hole and connected to the adjustment component, and the adjustment component can drive the other end of the parallelism adjustment shaft to swing with the end with a smaller aperture of the parallel mechanism bushing as a fulcrum; The adjustment component comprises: A first adjustment plate is arranged on the left side of the right support frame of the generator, one end of the first adjustment plate is provided with a waist-shaped hole, and the other end of the parallelism adjustment shaft is movably inserted into the waist-shaped hole; A second adjustment plate is arranged on the right side of the right support frame of the generator, one end of the second adjustment plate is provided with a circular tapered hole, the other end of the parallelism adjustment shaft is passed through the circular tapered hole, and the circular tapered hole gradually expands from right to left; A leveling screw seat is connected to the right support frame of the generator, and a nut is provided on the leveling screw seat; A leveling screw, wherein the leveling screw is threadedly connected to the nut, and the other end of the first adjusting piece and the other end of the second adjusting piece are both connected to the other end of the leveling screw; The first adjusting piece comprises a first limiting portion and a first connecting portion, one end of the first limiting portion is connected to one end of the first connecting portion to form an L-shape, the other end of the first limiting portion is provided with the waist-shaped hole, the other end of the first connecting portion is provided with a first notch, the second adjusting piece comprises a second limiting portion and a second connecting portion, one end of the second limiting portion is connected to one end of the second connecting portion to form an L-shape, the other end of the second limiting portion is provided with the circular tapered hole, the other end of the second connecting portion is provided with a second notch, the other end of the leveling screw is provided with a groove along the circumferential side wall, and the first notch and the second notch are snap-fitted with the groove; A first synchronous pulley is provided on the left housing of the generator, and the first synchronous pulley is connected to a second synchronous pulley on the engine through a synchronous belt; The left housing of the generator is located on the left side of the left supporting frame of the generator, and the right housing of the generator is located on the left side of the right supporting frame of the generator.

2. The synchronous pulley parallelism adjustment device according to claim 1, It is characterized in that It also includes a long support column and a short support column, wherein the long support column and the short support column are sleeved in the middle of the parallelism adjustment shaft, the side of the long support column close to the left support frame of the generator is tapered from right to left, and the side of the short support column close to the right support frame of the generator is tapered from left to right.

3. The synchronous pulley parallelism adjustment device according to claim 2, It is characterized in that A shoulder is provided in the middle of the parallelism adjustment shaft along the circumferential direction, the other side of the short support column is fitted with one side of the shoulder, one side of the right side housing of the generator is fitted with the other side of the shoulder, and the other side of the right side housing of the generator is fitted with the other side of the long support column.

4. The synchronous pulley parallelism adjustment device according to claim 3, It is characterized in that The inner peripheral side wall of the right side housing of the generator is connected to the outer peripheral side wall of the parallelism adjustment shaft through a sleeve.

5. The synchronous pulley parallelism adjustment device according to claim 4, It is characterized in that The inner peripheral side wall of the left side housing of the generator is connected to the outer peripheral side wall of the parallelism adjustment shaft through a shaft shoulder sleeve.

6. The synchronous pulley parallelism adjustment device according to claim 1, It is characterized in that An external hexagonal head is arranged at one end of the leveling screw, and the axial direction of the leveling screw is the same as the direction of the line connecting the centers of the circular arc parts of the waist-shaped holes.

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