Adjustable synchronous belt tensioning seat

Abstract

The utility model discloses an adjustable synchronous belt tensioning seat which comprises a mounting seat, a movable seat and an idle wheel assembly, and the mounting seat comprises an adjusting piece and a locking piece; the movable seat is arranged on the mounting seat in a sliding manner, an adjusting hole is formed in the movable seat, and the adjusting part penetrates through the adjusting hole and is fastened through the locking part, so that the movable seat is fastened on the mounting seat; the idle wheel assembly is arranged on the moving seat, and the moving direction of the moving seat is perpendicular to the axial direction of the idle wheel assembly. According to the utility model, the axial distance between the idle wheel assemblies can be adjusted through the movement of the movable seat, the assembly precision of the idle wheel assemblies is not changed in the adjusting process, and the tensioning can be freely adjusted after one-time calibration, so that the axial precision can be still maintained in the adjusting process, and the adjusting precision is high; although the mounting seat and the moving seat are two seat bodies, the main body structures are overlapped, no extra larger space is occupied, the structure is small and exquisite, and the device is suitable for various occasions and particularly suitable for being applied in a scene with a narrow space.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tensioner, specifically to an adjustable synchronous belt tensioning seat. BACKGROUND

[0002] The synchronous belt tensioning device is a commonly used holding device for the synchronous belt transmission system, which functions to keep the synchronous belt having proper tension during transmission, thereby ensuring stable transmission of the synchronous belt and avoiding the situation of slippage, tooth skipping or tooth shedding.

[0003] The prior art synchronous belt tensioning device has the following problems: first, the adjustment precision is poor, the prior art synchronous belt tensioning device mostly uses bolts to adjust the tension, and the bolt directly presses the idler shaft, and there is a gap between the adjustment hole and the bolt, which can easily cause the idler shaft line to be parallel to the driven shaft line or the horizontal position of the two wheels to be seriously deviated during adjustment; second, the tensioning mechanism is complex and occupies a large space, which is limited in narrow space and inconvenient to adjust.

[0004] Therefore, the prior art synchronous belt tensioning seat has the problems of low adjustment precision and inconvenience. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problems of the prior art synchronous belt tensioning seat, which has low adjustment precision and is inconvenient to adjust.

[0006] In order to solve the above technical problems, the utility model adopts the technical scheme of providing an adjustable synchronous belt tensioning seat:

[0007] The mounting seat comprises an adjusting member and a locking member;

[0008] The moving seat is slidably arranged in the mounting seat, the moving seat is provided with an adjusting hole, the adjusting member passes through the adjusting hole and is fastened by the locking member, so that the moving seat is fastened to the mounting seat; and

[0009] The idler assembly is arranged in the moving seat, and the moving direction of the moving seat is perpendicular to the axial direction of the idler assembly.

[0010] In a preferred embodiment, the mounting seat is provided with a reference block, and the reference block is provided with a through hole through which the adjusting member passes.

[0011] Further, in the above embodiment, the moving seat is provided with a positioning block, the adjusting hole is arranged in the positioning block, and the adjusting member is fastened to the adjusting hole after passing through the through hole.

[0012] Further, in the above embodiment, the locking member is sleeved on the outer periphery of the adjusting member, and the locking member abuts against one side of the positioning block facing the reference block.

[0013] Alternatively, in the above embodiments, the positioning blocks are configured as two, and are symmetrically arranged on both sides of the movable seat.

[0014] Alternatively, in the above embodiments, the mounting base is provided with a high position area and a low position area, the size of the high position area is higher than that of the low position area, the reference block is disposed in the high position area, and the movable seat is slidably disposed in the low position area.

[0015] Alternatively, in the above embodiments, the height of the positioning block is lower than the lower edge of the idler wheel assembly.

[0016] In another preferred embodiment, the bottom of the movable seat is provided with a sliding groove, and the mounting seat is provided with a guide block.

[0017] In another preferred embodiment, the movable base is provided with a plurality of elongated holes, each of the elongated holes being provided with a fastener, and the mounting base is provided with a positioning hole, wherein each of the fasteners is adjusted to align with the corresponding positioning hole and inserted into the positioning hole for fixation.

[0018] In another preferred embodiment, the movable seat is provided with a plurality of fasteners, and the mounting seat is provided with a plurality of positioning slots, the positioning slots corresponding one-to-one with the fasteners, the fasteners passing through the movable seat and abutting against the positioning slots.

[0019] As can be seen from the above technical solution, the advantages and positive effects of the adjustable synchronous belt tensioner of this application are as follows: Compared with the prior art, this utility model provides two seats: a mounting seat and a movable seat, with the movable seat slidably mounted on the mounting seat. When the tension needs to be adjusted, only the position of the movable seat on the mounting seat needs to be adjusted, and the idler pulley assembly will move with the movable seat. Since the moving direction of the movable seat is perpendicular to the axial direction of the idler pulley assembly, the axial distance between the idler pulley assemblies can be adjusted by moving the movable seat. After adjustment, the position of the movable seat is locked using adjusting and locking components.

[0020] The idler wheel assembly maintains its assembly precision during adjustment and can be freely adjusted after a single calibration, thus maintaining axial accuracy and high adjustment precision. Although the mounting base and the movable base are two separate bodies, their main structures overlap and do not occupy additional space. The compact structure is suitable for various occasions, especially for applications in confined spaces. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 It is a structural exploded view of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the utility model after the mounting seat is removed from the bolt;

[0026] Figure 4 It is a structural schematic diagram of the utility model of the moving seat;

[0027] Figure 5 It is a structural schematic diagram of the utility model in the front direction;

[0028] Figure 6 It is a structural schematic diagram of the utility model for two symmetrical uses.

[0029] Note: the corresponding relationship between the components and the labels in the drawing is:

[0030] Mounting seat 10, high position area 101, low position area 102, adjusting part 11, locking part 12, reference block 13, through hole 131, guide block 14, positioning hole 15, moving seat 20, adjusting hole 21, positioning block 22, sliding groove 23, fastening part 24, long hole 25, wheel carrier 26, idler assembly 30, fastening bolt 31, lock washer 32, washer 33, spacer ring 34, shaft 35, first bearing 36, second bearing 37, hole elastic baffle 38, idler 39. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application. The adjustable synchronous belt tensioning seat provided by the present application not only improves the adjustment accuracy, but also has a small structure, which is suitable for various occasions. The present application will be described in detail in combination with the drawings and specific embodiments in the description.

[0032] To overcome the problems of low adjustment accuracy and inconvenience in the adjustment of existing synchronous belt tensioners, please refer to... Figure 1 and Figure 2 This utility model provides an adjustable synchronous belt tensioner, including a mounting base 10, a movable base 20, and an idler pulley assembly 30. The mounting base 10 includes an adjusting member 11 and a locking member 12. The movable base 20 is slidably mounted on the mounting base 10 and has an adjusting hole 21. The adjusting member 11 passes through the adjusting hole 21 and is secured by the locking member 12, thus securing the movable base 20 to the mounting base 10. The idler pulley assembly 30 is mounted on the movable base 20, and the direction of movement of the movable base 20 is perpendicular to the axial direction of the idler pulley assembly 30. In practical use, the tension belt is sleeved on the idler pulleys, tensioned by two or more idler pulleys, and moves as the idler pulley assembly 30 rotates.

[0033] This invention comprises two seats: a mounting base 10 and a movable base 20, with the movable base 20 slidably mounted on the mounting base 10. When tension adjustment is required, simply adjust the position of the movable base 20 on the mounting base 10, and the idler wheel assembly 30 will move accordingly. Since the moving direction of the movable base 20 is perpendicular to the axial direction of the idler wheel assembly 30, the axial distance between the idler wheel assemblies 30 can be adjusted by moving the movable base 20. After adjustment, the position of the movable base 20 is locked using the adjusting member 11 and the locking member 12. Compared to existing adjustment methods, the assembly precision of the idler wheel assembly 30 remains unchanged during adjustment, allowing for free tension adjustment after a single calibration. Therefore, axial precision is maintained during adjustment, resulting in high adjustment accuracy. Although the mounting base 10 and the movable base 20 are two separate seats, their main structures overlap and do not occupy additional space. The compact structure makes them suitable for various applications, especially in confined spaces.

[0034] Specifically, the adjusting element 11 can be a bolt, and the locking element 12 can be a nut. The appropriate type of bolt can be selected according to the needs, mainly considering parameters such as the overall length of the bolt, the length of the smooth shaft (without thread), and the length of the threaded section.

[0035] See Figure 2 and Figure 3In a preferred embodiment, the mounting base 10 is provided with a reference block 13, which is provided with a through hole 131 for the adjustment member 11 to pass through. The reference block 13 enables the adjustment member 11 to be stably connected with the mounting base 10. The reference block 13 is cuboid-shaped, and the corners thereof are chamfered to provide the necessary carrier size basis for the through hole 131. The through hole 131 is provided in the reference block 13, and the diameter and axial length of the through hole 131 can be precisely machined, so that the adjustment member 11 can still move axially according to the through hole 131 during adjustment, thereby avoiding the adjustment member 11 from exerting unnecessary stress on the moving seat 20 due to improper movement, and further improving the adjustment accuracy. During fastening, the head end of the adjustment member 11 should be tightly abutted against the outer side of the reference block 13, and the other end is fastened in the adjustment hole 21 in a threaded manner.

[0036] Referring to Figure 2 and Figure 4 Further, in the above embodiment, the moving seat 20 is provided with a positioning block 22, and the adjustment hole 21 is provided in the positioning block 22, and the adjustment member 11 is fastened in the adjustment hole 21 after passing through the through hole 131. Since the moving seat 20 is generally flat as a seat body, it is not very convenient to provide the adjustment hole 21, and therefore the positioning block 22 is provided to adapt to the adjustment member 11. In this way, the assembly accuracy of the reference block 13 and the positioning block 22 is more easily ensured. Specifically, the adjustment member 11 is provided as a bolt, and the adjustment hole 21 is provided as a threaded hole, thereby having the functions of adjustment and positioning.

[0037] Referring to Figure 2 and Figure 4 Further, in the above embodiment, the locking member 12 is sleeved on the outer periphery of the adjustment member 11, and the locking member 12 is abutted against the side of the positioning block 22 that faces the reference block 13. Unlike the general fastening manner, the locking member 12 is provided on the inner side of the positioning block 22 in the present embodiment, rather than being provided as a nut that is screwed and fixed at the end of a screw rod as in the ordinary bolt. This is because the positioning block 22 has a certain thickness, and the tension adjustment distance is also relatively small, so that the end of the bolt as the adjustment member 11 generally does not protrude from the positioning block 22. Since the structure of the present application is compact, in order to prevent the idler assembly 30 from being bumped during operation, the locking member 12 is arranged between the reference block 13 and the positioning block 22, and is tightly abutted against the positioning block 22 during fastening.

[0038] Referring to Figure 2 and Figure 4Or further, in the above embodiment, the positioning block 22 is provided in two, and symmetrically arranged on both sides of the moving seat 20. The positioning block 22 is provided in two, which not only can meet the adjustment in different directions, but also is more flexible in installation. For example, in actual installation, the reference block 13 is generally outside the tension belt, so as to avoid the collision with the belt during adjustment. If the tension belt is sleeved on the idler on the left side, the tension belt needs to be sleeved on the idler on the right side. If no adjustment is made, the reference block 13 is below the tension belt, which is not conducive to adjustment. Referring to Figure 6 And the present application can rotate the mounting seat 10 by 180°, and then fix it with the moving seat 20, so as to ensure that the reference block 13 is located outside the tension range of the tension belt. The other two positioning blocks 22 are symmetrically arranged, so that the center of gravity of the whole mounting seat 10 is more stable, and deviation is not easy to occur during adjustment.

[0039] Referring to Figure 2 Or further, in the above embodiment, the mounting seat 10 is provided with a high position area 101 and a low position area 102, the size of the high position area 101 is higher than that of the low position area 102, the reference block 13 is arranged in the high position area 101, and the moving seat 20 is slidingly arranged in the low position area 102. The high position area 101 and the low position area 102 functionally divide the structure of the mounting seat 10, the high position area 101 elevates the reference block 13, so as to facilitate the alignment of the through hole 131 of the reference block 13 with the adjustment hole 21 of the positioning block 22. In addition, the high-low partition structure can also prevent the moving seat 20 from sliding too much, and prevent the collision between the positioning block 22 and the reference block 13.

[0040] Referring to Figure 5 Or further, in the above embodiment, the height of the positioning block 22 is lower than the lower edge of the idler assembly 30. Since the tension belt is tensioned through the idler, the position of the idler can limit the movement range of the tension belt. Therefore, in order to prevent the positioning block 22 from affecting the trajectory of the tension belt, the height of the positioning block 22 is set to be lower than the lower edge of the idler assembly 30, and the tension belt is inside the two edges of the idler, and is farther away from the positioning block 22, so as to effectively ensure that the positioning block 22 does not affect the tension belt.

[0041] Referring to Figure 3 And Figure 4 In another preferred embodiment, the bottom of the moving seat 20 is provided with a sliding groove 23, and the mounting seat 10 is provided with a guide block 14. The sliding direction of the moving seat 20 directly affects the adjustment accuracy, and needs to ensure that the sliding direction of the moving seat 20 is perpendicular to the axial direction of the idler assembly 30. The guide block 14 can be provided as a guide rail, and considering the small structure, the guide block 14 can be detachable and smaller in size. In this embodiment, the guide block 14 is provided as a flat key, and the mounting seat 10 is provided with a corresponding mounting groove.

[0042] Referring to Figure 2 、 Figure 3 AndFigure 4 In another preferred embodiment, the mobile base 20 is provided with a plurality of long holes 25, each of which is provided with a fastener 24, and the mounting base 10 is provided with positioning holes 15. The fasteners 24 are adjusted to be aligned with the corresponding positioning holes 15 and are fixed by penetrating the positioning holes 15. After the adjustment, the mobile base 20 is slightly displaced relative to the mounting base 10. In order to improve the stability of the mobile base 20, the mobile base 20 is fixed to the mounting base 10 after the adjustment, and the fasteners 24 are still aligned with and fixed in the positioning holes 15 of the mounting base 10. The difference between before and after the adjustment is that the positions of the fasteners 24 in the long holes 25 are changed. The fasteners 24 can be bolts, and washers can be provided to increase the fastening performance.

[0043] In another preferred embodiment, the mobile base 20 is provided with a plurality of fasteners 24, and the mounting base 10 is provided with a plurality of positioning long slots, which correspond to the fasteners 24 one by one. The fasteners 24 penetrate the mobile base 20 and abut against the positioning long slots. Unlike the above-mentioned embodiment, the mounting base 10 is provided with the positioning long slots instead of the positioning holes 15, and the mobile base 20 is not provided with the long holes 25 but only provided with threaded holes. The fasteners 24 move together with the mobile base 20. After the adjustment, the fasteners 24 do not need to be adjusted, but only need to be fastened in the positioning long slots again. The difference between before and after the adjustment is that the positions of the fasteners 24 in the positioning long slots are changed.

[0044] Referring to Figure 2 In another preferred embodiment, the mobile base 20 is provided with a wheel frame 26, and the idler assembly 30 is detachably arranged on the wheel frame 26. The idler assembly 30 includes a fastening bolt 31, a lock washer 32, a washer 33, a spacer ring 34, a shaft 35, a first bearing 36, a second bearing 37, a hole elastic retainer 38, and an idler 39. One end of the shaft 35 is provided with a shaft shoulder, and the end face of the other end is provided with a threaded hole. The inner rings of the first bearing 36 and the second bearing 37 are fixed to the spacer ring 34 through the shaft shoulder of the shaft 35, and the outer rings are fixed through the hole elastic retainer 38 and the idler 39. The idler assembly 30 is integrally fastened and fixed through the fastening bolt 31, the lock washer 32, the washer 33, and the threaded hole on the end face of the shaft 35, so as to ensure the stable operation of the idler 39.

[0045] It has to be noted that, in the present document, relational terms are intended only to convey a possible relationship between elements or

[0046] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, which modifications and changes are to be understood as intended to be encompassed by the general scope of the application. Accordingly, the application is not to be limited to the above described or illustrated embodiments, but is intended to encompass all embodiments consistent with the principles of the application.

Claims

1. An adjustable timing belt tensioner seat, characterized by, The utility model relates to a kind of installation seat, including adjusting member and locking member, mobile seat, slidingly arranged in the installation seat, the mobile seat is equipped with adjusting hole, the adjusting member passes through the adjusting hole and is fastened by the locking member, so that the mobile seat is fastened to the installation seat, and idler assembly, arranged in the mobile seat, the moving direction of the mobile seat is perpendicular to the axial direction of the idler assembly. The installation seat is provided with a reference block, and the reference block is provided with a through hole for the adjusting member to pass through. The mobile seat is provided with a positioning block, and the adjusting hole is formed in the positioning block. The locking member is sleeved on the outer periphery of the adjusting member, and the locking member abuts against one side of the positioning block towards the reference block.

2. The adjustable timing belt tensioner seat of claim 1, wherein, The positioning block is provided with two, and symmetrically arranged on both sides of the mobile seat.

3. The adjustable timing belt tensioner seat of claim 2, wherein, The installation seat is provided with high position area and low position area, and the size of the high position area is higher than that of the low position area.

4. The adjustable timing belt tensioner seat of claim 3, wherein, The height of the positioning block is lower than the lower edge of the idler assembly.

5. The adjustable timing belt tensioner seat of claim 3, wherein, The bottom of the mobile seat is provided with a sliding groove, and the installation seat is provided with a guide block.

6. The adjustable timing belt tensioner seat of claim 3, wherein, The mobile seat is provided with a plurality of long holes, each of which is provided with a fastener.

7. The adjustable timing belt tensioner seat of claim 3, wherein, The mobile seat is provided with a plurality of fasteners, and the installation seat is provided with a plurality of positioning long grooves.

8. The adjustable timing belt tensioner seat of claim 1, wherein, The fastener passes through the mobile seat and abuts against the positioning long groove.

9. The adjustable timing belt tensioner seat of claim 1, wherein, ​ 10. The adjustable timing belt tensioner seat of claim 1, wherein, ​

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