Double-support adjustable tensioning mechanism

Abstract

The utility model belongs to the technical field of chain or belt tensioning equipment, and particularly relates to a double-support adjustable tensioning mechanism. According to the specific technical scheme, the supporting seat comprises a supporting seat body, a tensioning wheel and an adjusting assembly, the tensioning wheel is rotationally arranged on the supporting seat body through a rotating piece, and a plurality of rotating piece installation positions are arranged on the supporting seat body; the adjusting assembly comprises a positioning part and a fastening part, a plurality of positioning part mounting positions are arranged on the supporting seat main body, the rotating part mounting positions correspond to the positioning part mounting positions, and the positioning part and the rotating part are locked and fixed on the supporting seat main body by the fastening part at the same time. The installation position of the tensioning wheel on the supporting base body is adjusted, tensioning adjustment can be conducted on chains or belts with different tightness degrees, adjustment of different tensioning degrees can be achieved, and the equipment applicability of the tensioning mechanism is expanded.

Description

Technical Field

[0001] This utility model belongs to the technical field of chain or belt tensioning equipment, specifically relating to a double-support adjustable tensioning mechanism. Background Technology

[0002] After a period of operation, drive chains or belts will wear out. This increased wear usually causes the drive chains or belts to loosen from their initial tension, and the tension of the drive chains or belts will also decrease, thus affecting the normal operation of the drive chains or belts and even the entire system.

[0003] Existing tensioning mechanisms include threaded adjustment tensioning mechanisms, eccentric adjustment tensioning mechanisms, and spring adjustment tensioning mechanisms. Currently, threaded adjustment tensioning mechanisms can only adjust one side of the tensioning wheel and have low load capacity. Eccentric adjustment tensioning mechanisms typically place the tensioning wheel on the slack side of the chain, close to the small or large sprocket as needed, or positioned in the middle between the small and large sprockets; again, they can only adjust one side of the tensioning wheel and have low load capacity. Spring adjustment tensioning mechanisms utilize the elasticity of springs to automatically adjust for slack in the drive chain or belt; however, springs and other elastic materials have elastic limits, and under high load conditions, they are prone to failure. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a high-double-support adjustable tensioning mechanism, which solves the problems of existing tensioning mechanisms that can only be adjusted on one side and have low load capacity.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is: a dual-support adjustable tensioning mechanism, including a support base body, a tensioning wheel, and adjustment components symmetrically arranged on both sides of the tensioning wheel. The tensioning wheel is rotatably mounted on the support base body via a rotating component, and the support base body has multiple mounting positions for the rotating component. The adjustment components include positioning components and fasteners. The support base body has multiple mounting positions for the positioning components, and the mounting positions for the rotating components correspond to the mounting positions for the positioning components. The fasteners simultaneously lock and fix the positioning components and the rotating components to the support base body.

[0006] Preferably, the support body has a main sliding through hole along its vertical direction, one end of the fastener passes through the main sliding through hole, and the end of the positioning member is threadedly connected to the end of the rotating member, and the other end of the fastener abuts against the positioning member or the support body.

[0007] Preferably, the adjustment assembly further includes an adjustment member, which is rotatably connected to the support body, and the positioning member is threadedly connected to the adjustment member, and the rotation of the adjustment member drives the positioning member to rise and fall.

[0008] Preferably, the adjusting component further includes an adjusting member, which is threadedly connected to the main body of the supporting seat, and the positioning member is rotatably connected to the adjusting member. The rotation of the adjusting member drives the positioning member to move up and down.

[0009] Preferably, an auxiliary sliding through hole is provided on the main body of the supporting seat in the vertical direction, and a sliding block adapted to the auxiliary sliding through hole is provided on the side wall of the positioning member.

[0010] Preferably, the main body of the supporting seat includes a base and vertical plates. The two vertical plates are symmetrically arranged on the base. The tensioning wheel is rotatably arranged between the two vertical plates through a rotating member, and the two main sliding through holes are symmetrically arranged on the two vertical plates.

[0011] Preferably, the positioning member is arranged inside the main body of the supporting seat. One end of the fastening member sequentially passes through the vertical plate and the positioning member and is threadedly connected to the end of the rotating member; the positioning member adopts an inverted "冂"-shaped positioning plate one, the adjusting member adopts an adjusting screw, a fixing block is fixedly arranged on the upper surface of the base, one end of the adjusting screw passes through the transverse part of the positioning plate one and is rotatably connected to the fixing block, and the transverse part of the positioning plate one is threadedly connected to the adjusting screw.

[0012] Preferably, two adjusting screws are symmetrically arranged on the transverse part of the positioning plate one.

[0013] Preferably, the positioning member is arranged outside the main body of the supporting seat. One end of the fastening member sequentially passes through the positioning member, the vertical plate and is threadedly connected to the end of the rotating member; the positioning member adopts an "L"-shaped positioning plate two, the adjusting member adopts an adjusting screw, a fixing block is fixedly arranged on the outer side wall of the vertical plate, one end of the adjusting screw passes through the fixing block and is rotatably connected to the transverse part of the positioning plate two, and the fixing block is threadedly connected to the adjusting screw.

[0014] Preferably, a reinforcing rib is arranged between the two vertical plates, and a reinforcing rib is arranged between the vertical part and the transverse part of the positioning plate two.

[0015] The utility model has the following beneficial effects:

[0016] 1. By providing multiple positioning member installation positions and multiple rotating member installation positions on the main body of the supporting seat, by changing the installation positions of both ends of the rotating member on the main body of the supporting seat, the positioning member is correspondingly moved to the installation position at the end of the rotating member, and then the positioning member and the end of the rotating member are locked and fixed on the main body of the supporting seat through the fastening member, so as to adjust the installation position of the tensioning wheel on the main body of the supporting seat, and the tension of chains or belts with different tightness degrees can be adjusted. Moreover, different tension adjustment degrees can be achieved, expanding the equipment applicability of the tensioning mechanism.

[0017] 2. This tensioning mechanism features a simple and reliable structure, low cost, wide applicability, and high load-bearing capacity. Because adjusting components are symmetrically arranged on both sides of the tensioning wheel, and the rotating parts are secured by locking screws or bolts, with a positioning element between the nut of the locking screw or bolt and the side wall of the support body, the friction between the nut and the side wall of the support body is converted into friction between the positioning element and the side wall of the support body. This makes it suitable for high-load applications. The tensioning wheel and bracket dimensions can be selected according to the chosen chain or belt model. This mechanism not only tensions chains or belts but can also be installed at locations where the chain direction needs to be changed, thus altering the chain transmission direction. Attached Figure Description

[0018] Figure 1 This is a perspective structural diagram of Embodiment 1 of the present utility model;

[0019] Figure 2 This is a front view of Embodiment 1 of the present utility model;

[0020] Figure 3 This is a side view of Embodiment 1 of the present invention;

[0021] Figure 4 This is a perspective structural diagram of Embodiment 2 of the present invention;

[0022] Figure 5 This is a front view of Embodiment 2 of the present invention;

[0023] Figure 6 This is a side view of Embodiment 2 of the present invention.

[0024] The following components are marked in the attached diagram: 1. Base; 2. Vertical plate; 3. Tensioning wheel; 4. Main sliding through hole; 5. Fastener; 6. Auxiliary sliding through hole; 7. Slider; 8. Adjusting component; 9. Fixing block; 10. Positioning plate one; 11. Positioning plate two; 12. Rotating component; 13. Reinforcing rib. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] This application discloses a double-support adjustable tensioning mechanism, which includes a support base body, a tensioning wheel 3, and adjusting components symmetrically arranged on both sides of the tensioning wheel 3. The tensioning wheel 3 is rotatably arranged on a rotating member 12, and both ends of the rotating member 12 are fixed to the support base body. The tensioning wheel 3 is used to tension a chain or a belt. The rotating member 12 can be implemented in various ways such as a rotating shaft, a rotating rod, a rotating cylinder, etc.; multiple installation positions for the rotating member 12 are provided on the support base body; the adjusting component includes a positioning member and a fastening member 5. Multiple installation positions for the positioning member are provided on the support base body. The installation position of the rotating member 12 corresponds to the installation position of the positioning member. The fastening member 5 locks and fixes the positioning member and the rotating member 12 at the same position on the support base body.

[0028] The fastening member 5 can be a locking screw, a locking bolt, or other existing structures that can achieve the function of simultaneously locking and fixing the positioning member and the rotating member 12. The specific form of the positioning member is not limited here. The positioning member can be implemented in various ways such as a vertical plate, an inverted "L" - shaped positioning plate, an "L" - shaped positioning plate, an inverted "冂" - shaped positioning plate, etc.

[0029] In a further implementation, a main sliding through - hole 4 is provided on the support base body along its vertical direction. One end of the fastening member 5 passes through the main sliding through - hole 4, the positioning member, and is thread - connected to the end of the rotating member 12. The end of the other end of the fastening member 5 abuts against the positioning member or the support base body, thereby achieving the locking and fixing of the positioning member and the rotating member 12. When it is necessary to adjust the installation position of the tensioning wheel 3, the fastening member 5 is screwed outwards so that one end of the fastening member 5 can slide up and down in the main sliding through - hole 4, thereby adjusting the installation position of the end of the rotating member 12 and the positioning member along the length direction of the main sliding through - hole 4; after determining the installation position, the fastening member 5 is screwed inwards so that the fastening member 5 abuts against the positioning member or the support base body, preventing the positioning member and the rotating member 12 from moving further.

[0030] In a further embodiment, an auxiliary sliding through hole 6 is provided on the main body of the support base along the vertical direction, and a slider 7 adapted to the auxiliary sliding through hole 6 is provided on the side wall of the positioning member. The length direction of the auxiliary sliding through hole 6 is parallel to the length direction of the main sliding through hole 4. When adjusting the installation position of the positioning member, the positioning member is moved along the length direction of the auxiliary sliding through hole 6 by setting the slider 7, and the vertical movement of the positioning member is further restricted by the auxiliary sliding through hole 6. In a preferred embodiment, two auxiliary sliding through holes 6 are provided, and the two auxiliary sliding through holes 6 are symmetrically arranged on both sides of the main sliding through hole 4.

[0031] Preferably, the adjusting assembly further includes an adjusting member 8. The adjusting member 8 can be an adjusting screw, an adjusting stud, or a structure with a threaded section on the circumferential sidewall of a cylinder, among other implementations. The adjusting member 8 is used to adjust the position of the positioning member in the vertical direction. There are several implementations for the adjusting member 8 to drive the positioning member to rise and fall; two are given here:

[0032] One implementation method, such as Figure 1 As shown, the adjusting member 8 is rotatably connected to the support body, and the positioning member is threadedly connected to the adjusting member 8. The adjusting member 8 rotates relative to the support body, but the relative position between the two does not change. When the adjusting member 8 rotates, it causes the positioning member to rise or fall, that is, the rotation of the adjusting member 8 drives the positioning member to rise or fall.

[0033] Another implementation, such as Figure 4 As shown, the adjusting member 8 is threadedly connected to the main body of the support base, and the positioning member is rotatably connected to the adjusting member 8. The position of the adjusting member 8 relative to the main body of the support base changes, specifically, the adjusting member 8 rises or falls on the main body of the support base. During this process, the end of the adjusting member 8 pushes the positioning member to rise or fall, that is, the adjusting member 8 rotates to drive the positioning member to rise and fall.

[0034] In a further embodiment, the support body includes a base 1 and two vertical plates 2, with the two vertical plates 2 symmetrically arranged on the base 1. The tensioning wheel 3 is rotatably disposed between the two vertical plates 2 via a rotating component 12, and the two main sliding through holes 4 are symmetrically arranged on the two vertical plates 2. The base 1 is also provided with mounting holes for mounting the support body on a workbench.

[0035] The working principle of the double-support adjustable tensioning mechanism is as follows: By changing the installation positions of the two ends of the rotating part 12 on the support body, the positioning part is moved to the installation position of the end of the rotating part 12 accordingly. The installation position adjustment of the positioning part is achieved by the adjusting part 8. Then, the positioning part and the end of the rotating part 12 are locked and fixed on the support body by the fastener 5, thereby adjusting the installation position of the tensioning wheel 3 on the support body. This allows for tension adjustment of chains or belts with different tightness levels, and also enables different tension levels to be adjusted, thus expanding the equipment applicability of the tensioning mechanism.

[0036] Example 1

[0037] As Figure 1-3 shown, the fastener 5 uses a locking bolt, the rotating part 12 uses a rotating shaft, the positioning part uses an inverted "冂"-shaped positioning plate one 10, and the adjusting part 8 uses an adjusting screw;

[0038] The inverted "冂"-shaped positioning plate one 10 is arranged inside the support seat main body. The bottom end of the locking bolt (the end far from the adjusting bolt nut) sequentially passes through the vertical plate 2, the positioning plate one 10 and is threadedly connected to the end of the rotating shaft. A threaded mounting hole is arranged along the axial direction of the end of the rotating shaft, and this threaded mounting hole is adapted to the bottom end of the locking bolt;

[0039] On the upper surface of the base 1, fixing blocks 9 are symmetrically and fixedly arranged. Two adjusting screws are symmetrically arranged on the transverse part of the positioning plate. The bottom end of the adjusting screw (the end far from the adjusting screw nut) passes through the transverse part of the positioning plate one 10 and is rotatably connected between the fixing blocks 9. By arranging the fixing blocks 9, the position of the adjusting screw relative to the base 1 does not change. At this time, the transverse part of the positioning plate one 10 is threadedly connected to the adjusting screw. Since the position of the adjusting screw relative to the base 1 is fixed, rotating the adjusting screw will cause the positioning plate one 10 to rise or fall, thereby adjusting the position of the tensioning wheel 3.

[0040] Example 2

[0041] As Figure 4-6 shown, the fastener 5 uses a locking bolt, the rotating part 12 uses a rotating shaft, the positioning part uses an "L"-shaped positioning plate two 11, and the adjusting part 8 uses an adjusting screw;

[0042] The "L"-shaped positioning plate two 11 is arranged outside the support seat main body. The bottom end of the locking bolt (the end far from the adjusting bolt nut) sequentially passes through the positioning plate two 11, the vertical plate 2 and is threadedly connected to the end of the rotating shaft. A threaded mounting hole is arranged along the axial direction of the end of the rotating shaft, and this threaded mounting hole is adapted to the bottom end of the locking bolt;

[0043] Fixing blocks 9 are fixedly arranged on the outer side walls of the two vertical plates 2, and the two fixing blocks 9 are symmetrically arranged. The bottom end of the adjusting screw (the end far from the adjusting screw nut) passes through the fixing block 9 and is rotatably connected to the lower part of the positioning plate two 11. Specifically, a positioning cylinder is fixedly arranged on the lower surface of the positioning plate two 11, and the inner hole of the positioning cylinder is adapted to the bottom of the adjusting screw. By arranging the positioning cylinder, the position of the adjusting screw relative to the positioning plate two 11 does not change. At this time, the fixing block 9 is threadedly connected to the adjusting screw. Since the position of the adjusting screw relative to the positioning plate two 11 is fixed, rotating the adjusting screw, the adjusting screw will rise or fall relative to the fixing block 9, and the bottom of the adjusting screw will drive the positioning plate two 11 to rise or fall, thereby adjusting the position of the tensioning wheel 3.

[0044] A reinforcing rib 13 is provided between the two vertical plates 2 to enhance the mechanical strength of the entire support body. A reinforcing rib 13 is also provided between the vertical and horizontal parts of the positioning plate to improve the mechanical strength of the entire positioning plate.

[0045] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications, alterations, alterations, or substitutions made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. A dual-support adjustable tensioning mechanism, characterized in that: It includes a support base body, a tensioning wheel (3), and adjusting components symmetrically arranged on both sides of the tensioning wheel (3). The tensioning wheel (3) is rotatably arranged on the support base body through a rotating member (12), and multiple rotating member (12) installation positions are provided on the support base body; the adjusting components include positioning members and fastening members (5). Multiple positioning member installation positions are provided on the support base body. The rotating member (12) installation positions correspond to the positioning member installation positions, and the fastening member (5) locks and fixes the positioning member and the rotating member (12) on the support base body simultaneously.

2. The dual-support adjustable tensioning mechanism according to claim 1, characterized in that: A main sliding through-hole (4) is provided on the support base body along its vertical direction. One end of the fastening member (5) passes through the main sliding through-hole (4), the positioning member, and is threadedly connected to the end of the rotating member (12). The end of the other end of the fastening member (5) abuts against the positioning member or the support base body.

3. The dual-support adjustable tensioning mechanism according to claim 2, characterized in that: The adjusting component further includes an adjusting member (8). The adjusting member (8) is rotatably connected to the support base body. The positioning member is threadedly connected to the adjusting member (8), and the rotation of the adjusting member (8) drives the positioning member to move up and down.

4. The dual-support adjustable tensioning mechanism according to claim 2, characterized in that: The adjusting component further includes an adjusting member (8). The adjusting member (8) is threadedly connected to the support base body. The positioning member is rotatably connected to the adjusting member (8), and the rotation of the adjusting member (8) drives the positioning member to move up and down.

5. The dual-support adjustable tensioning mechanism according to claim 3 or 4, characterized in that: An auxiliary sliding through-hole (6) is provided on the support base body along the vertical direction. A sliding block (7) adapted to the auxiliary sliding through-hole (6) is provided on the side wall of the positioning member.

6. The dual-support adjustable tensioning mechanism according to claim 3 or 4, characterized in that: The support base body includes a base (1) and vertical plates (2). The two vertical plates (2) are symmetrically arranged on the base (1). The tensioning wheel (3) is rotatably arranged between the two vertical plates (2) through a rotating member (12), and the two main sliding through-holes (4) are symmetrically arranged on the two vertical plates (2).

7. The dual-support adjustable tensioning mechanism according to claim 6, characterized in that: The positioning member is arranged inside the support base body. One end of the fastening member (5) sequentially passes through the vertical plate (2), the positioning member, and is threadedly connected to the end of the rotating member (12); the positioning member adopts an inverted "冂"-shaped positioning plate one (10), the adjusting member (8) adopts an adjusting screw, a fixing block (9) is fixedly arranged on the upper surface of the base (1), one end of the adjusting screw passes through the transverse part of the positioning plate one (10) and is rotatably connected to the fixing block (9), and the transverse part of the positioning plate one (10) is threadedly connected to the adjusting screw.

8. The dual-support adjustable tensioning mechanism according to claim 7, characterized in that: Two adjusting screws are symmetrically arranged on the transverse part of the positioning plate one (10).

9. The dual-support adjustable tensioning mechanism according to claim 6, characterized in that: The positioning member is arranged outside the support base body. One end of the fastening member (5) sequentially passes through the positioning member, the vertical plate (2), and is threadedly connected to the end of the rotating member (12); the positioning member adopts an "L"-shaped positioning plate two (11), the adjusting member (8) adopts an adjusting screw, a fixing block (9) is fixedly arranged on the outer side wall of the vertical plate (2), one end of the adjusting screw passes through the fixing block (9) and is rotatably connected to the transverse part of the positioning plate two (11), and the fixing block (9) is threadedly connected to the adjusting screw.

10. The dual-support adjustable tensioning mechanism according to claim 9, characterized in that: A reinforcing rib (13) is provided between the two vertical plates (2), and a reinforcing rib (13) is provided between the vertical part and the horizontal part of the positioning plate two (11).

Images