Device capable of tensioning tooth-shaped synchronous belt

Abstract

The utility model discloses a device capable of tensioning a tooth-shaped synchronous belt, and belongs to the technical field of cable production equipment. Comprising a bottom plate, a vertical plate is arranged on the bottom plate, two parallel strip-shaped mounting grooves are vertically formed in the vertical plate, a tensioning shaft is horizontally arranged at the strip-shaped mounting grooves in the vertical plate through hexagon socket cap screws, and a guide roller is arranged on the tensioning shaft through two sets of deep groove ball bearings. The device is simple in combination, compact in structure, reasonable in layout, reliable in operation and convenient to install and adjust. By using the tooth-shaped synchronous belt tensioning device, the tooth-shaped synchronous belt installed between the tooth-shaped synchronous belt wheels on the circular shaft and the triangular shaft can be tensioned conveniently and easily, so that the transmission installation between the shafts is more compact, the requirement of the shafts on heavy-load transmission is met, and the tooth-shaped synchronous belt tensioning device is convenient to popularize and use.

Description

Technical Field

[0001] The utility model relates to the technical field of cable production equipment, in particular to a device capable of tensioning a toothed synchronous belt designed for a cantilever single-twister take-up frame. Background Art

[0002] The microcomputer ￠630 cantilever single twisting machine is a kind of mechanical equipment that can be widely used for twisting various soft or hard conductor wires. It twists two or more thin wires into thicker wires through the circular motion of the twisting bow suspended on the take-up frame.

[0003] The twisting motor of the microcomputer ￠630 cantilever single-twister take-up frame not only achieves circular motion of the twisting bow through the drive of a frequency converter, but also rotates the take-up drum and tightens the twisted, thicker wire through the transmission of the toothed synchronous belt connecting the twisting bow shaft to the round shaft, the round shaft to the triangular shaft (the shaft with an inner triangular arc hole), and the triangular shaft to the toothed synchronous pulley on the take-up drum drive shaft. The installation dimensions of the twisting bow shaft and the round shaft, the round shaft to the triangular shaft, and the triangular shaft to the take-up drum drive shaft are relatively small. The transmission between each shaft requires heavy loads and compact installation between the shafts. Designing a toothed synchronous belt that can be easily tensioned between the toothed synchronous pulleys on the round and triangular shafts, particularly within the confined space between the round and triangular shafts, has been a technical challenge that has long plagued those in the cable industry. Utility Model Content

[0004] The purpose of this utility model is to design a device for easily tensioning a toothed synchronous belt installed between the toothed synchronous pulleys on the round and triangular shafts of a cantilever single-twister take-up frame. This tensioning device can easily tension the toothed synchronous belt installed between the toothed synchronous pulleys on the round and triangular shafts, making the transmission installation between the shafts more compact and meeting the requirements for heavy-load transmission between the shafts. This solves the problems raised in the above-mentioned background art.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A device for tensioning a toothed synchronous belt comprises a base plate 8, on which a vertical plate 5 is provided, and on which two parallel strip mounting grooves 51 are vertically provided. A tensioning shaft 4 is horizontally provided at the strip mounting groove 51 on the vertical plate 5 via a hexagon socket cylindrical head screw 7, and a guide roller 3 is provided on the tensioning shaft 4 via two sets of deep groove ball bearings 2.

[0007] The tensioning shaft 4 consists of a primary shaft 41, a secondary shaft 42 and a tertiary shaft 43. The diameter of the secondary shaft 42 is larger than that of the primary shaft 41, and the diameter of the tertiary shaft 43 is larger than that of the secondary shaft 42. The guide roller 3 is arranged on the primary shaft 41. The primary shaft 41 and the inner ring of the deep groove ball bearing 2 are transitionally matched. The two ends of the inner hole of the guide roller 3 are respectively transitionally matched with the outer rings of the two sets of deep groove ball bearings 2. The shaft head of the primary shaft 41 is processed with a groove 411, and a shaft elastic retaining ring 1 is installed in the groove 411. The shaft elastic retaining ring 1 axially limits the outer deep groove ball bearing 2, and the secondary shaft 42 limits the inner deep groove ball bearing 2 axially.

[0008] Two parallel strip-shaped bosses 431 are provided on the right end face of the tertiary shaft 43. The two bosses 431 are respectively inserted into the two strip-shaped mounting grooves 51 of the vertical plate 5. A screw hole 432 is processed on the right end face of each boss 431. A hexagon socket head screw 7 is provided in the screw hole 432. A flat washer 6 is sleeved on the hexagon socket head screw 7. The outer diameter of the flat washer 6 is larger than the width of the strip-shaped mounting groove 51. The tensioning shaft 4 is fixed to the vertical plate 5 by tightening the hexagon socket head screw 7 and the flat washer 6.

[0009] The bosses 431 and the strip-shaped mounting grooves 51 are clearance-fitted, and two screw holes 432 are machined on the end surface of each boss 431 .

[0010] The vertical plate 5 is vertically welded to the bottom plate 8 , and the bottom plate 8 is provided with a plurality of mounting through holes 81 .

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0012] The utility model has a simple combination, a compact structure, a reasonable layout, a reliable operation, and is easy to install and adjust. Through the use of the utility model, the toothed synchronous belt installed between the toothed synchronous pulleys on the circular shaft and the triangular shaft can be easily and conveniently tightened, making the transmission installation between the shafts more compact, and also meeting the requirements of heavy-load transmission between the shafts, which is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main view of the utility model;

[0014] Figure 2 It is a left view of the utility model;

[0015] Figure 3 This is a front view of the tensioning shaft of the utility model;

[0016] Figure 4 A top view of the tensioning shaft of the present invention;

[0017] Figure 5It is a right side view of the tensioning shaft of the utility model;

[0018] As shown in the figure: 1. Elastic circlip for shaft; 2. Deep groove ball bearing; 3. Guide roller; 4. Tensioning shaft; 41. Primary shaft; 411. Groove; 42. Secondary shaft; 43. Tertiary shaft; 431. Boss; 432. Screw hole; 5. Vertical plate; 51. Strip mounting groove; 6. Flat washer; 7. Hexagon socket head screw; 8. Base plate; 81. Mounting through hole. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] Example 1

[0023] like Figure 1-5 The present embodiment provides a device for tensioning a toothed synchronous belt, comprising a base plate 8, a vertical plate 5 provided on the base plate 8, two parallel strip mounting grooves 51 vertically provided on the vertical plate 5, a tensioning shaft 4 horizontally provided at the strip mounting groove 51 on the vertical plate 5 via a hexagon socket cylindrical head screw 7, and a guide roller 3 provided on the tensioning shaft 4 via two sets of deep groove ball bearings 2.

[0024] The tensioning shaft 4 consists of a primary shaft 41, a secondary shaft 42 and a tertiary shaft 43. The diameter of the secondary shaft 42 is larger than that of the primary shaft 41, and the diameter of the tertiary shaft 43 is larger than that of the secondary shaft 42. The guide roller 3 is arranged on the primary shaft 41. The primary shaft 41 and the inner ring of the deep groove ball bearing 2 are transitionally matched. The two ends of the inner hole of the guide roller 3 are respectively transitionally matched with the outer rings of the two sets of deep groove ball bearings 2. The shaft head of the primary shaft 41 is processed with a groove 411, and a shaft elastic retaining ring 1 is installed in the groove 411. The shaft elastic retaining ring 1 axially limits the outer deep groove ball bearing 2, and the secondary shaft 42 limits the inner deep groove ball bearing 2 axially.

[0025] Two parallel strip-shaped bosses 431 are provided on the right end face of the tertiary shaft 43. The two bosses 431 are respectively inserted into the two strip-shaped mounting grooves 51 of the vertical plate 5. A screw hole 432 is processed on the right end face of each boss 431. A hexagon socket head screw 7 is provided in the screw hole 432. A flat washer 6 is sleeved on the hexagon socket head screw 7. The outer diameter of the flat washer 6 is larger than the width of the strip-shaped mounting groove 51. The tensioning shaft 4 is fixed to the vertical plate 5 by tightening the hexagon socket head screw 7 and the flat washer 6.

[0026] The bosses 431 and the strip-shaped mounting grooves 51 are clearance-fitted, and two screw holes 432 are machined on the end surface of each boss 431 .

[0027] The vertical plate 5 is vertically welded to the bottom plate 8, and the bottom plate 8 is provided with a plurality of mounting holes 81. By passing a plurality of screws through the mounting holes 81, the tensioning device can be fixed at a suitable position between the circular axis and the triangular axis of the cantilever single stranding machine take-up frame.

[0028] The method of using this utility model is to use a production break to secure the assembled tensioning device to a suitable position between the circular shaft and the triangular shaft of the cantilever single-twister take-up frame using multiple screws inserted through mounting holes 81 in the base plate 8. Appropriately loosen the hexagonal socket head screws 7 to adjust the tension of the toothed timing belt installed between the toothed timing pulleys on the circular shaft and the triangular shaft. Once the adjustment is appropriate, tighten the hexagonal socket head screws 7. This completes the installation of a device for tensioning a toothed timing belt. Once all preparatory work is complete, the machine can be put into production.

Claims

1. A device for tensioning a toothed synchronous belt, comprising a base plate (8), characterized in that: A vertical plate (5) is provided on the bottom plate (8), and two parallel strip-shaped mounting grooves (51) are vertically provided on the vertical plate (5). A tensioning shaft (4) is horizontally provided at the strip-shaped mounting groove (51) on the vertical plate (5) via a hexagon socket head screw (7), and a guide roller (3) is provided on the tensioning shaft (4) via two sets of deep groove ball bearings (2).

2. The device for tensioning a toothed synchronous belt according to claim 1, characterized in that: The tensioning shaft (4) is composed of a primary shaft (41), a secondary shaft (42) and a tertiary shaft (43). The diameter of the secondary shaft (42) is larger than that of the primary shaft (41), and the diameter of the tertiary shaft (43) is larger than that of the secondary shaft (42). The guide roller (3) is arranged on the primary shaft (41). The primary shaft (41) and the inner ring of the deep groove ball bearing (2) are provided with a transition fit. The two ends of the inner hole of the guide roller (3) are provided with a transition fit respectively with the outer rings of the two sets of deep groove ball bearings (2). The shaft head of the primary shaft (41) is processed with a groove (411). A shaft elastic retaining ring (1) is installed in the groove (411). The shaft elastic retaining ring (1) is used to axially limit the outer deep groove ball bearing (2), and the secondary shaft (42) is used to axially limit the inner deep groove ball bearing (2).

3. The device for tensioning a toothed synchronous belt according to claim 2, characterized in that: Two parallel strip-shaped bosses (431) are provided on the right end surface of the tertiary shaft (43). The two bosses (431) are respectively inserted into the two strip-shaped mounting grooves (51) of the vertical plate (5). A screw hole (432) is processed on the right end surface of each boss (431). A hexagon socket head screw (7) is provided in the screw hole (432). A flat washer (6) is sleeved on the hexagon socket head screw (7). The outer diameter of the flat washer (6) is larger than the width of the strip-shaped mounting groove (51). The tensioning shaft (4) is fixed to the vertical plate (5) by tightening the hexagon socket head screw (7) and the flat washer (6).

4. The device for tensioning a toothed synchronous belt according to claim 3, characterized in that: The boss (431) and the strip-shaped mounting groove (51) are clearance-fitted, and two screw holes (432) are machined on the end surface of each boss (431).

5. The device for tensioning a toothed synchronous belt according to claim 1, characterized in that: The vertical plate (5) is vertically welded to the bottom plate (8), and a plurality of mounting through holes (81) are provided on the bottom plate (8).

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