Belt and pulley spanner

Abstract

The present application relates to the technical field of mechanical adjustment, and particularly relates to a belt gear wrench, wherein the two sides of a bit gear are respectively assembled with a first supporting rod and a gear gland, the gear gland is fixed on the first supporting rod through a bolt, the two ends of a crossbeam supporting seat are provided with a second gear cover and a third gear cover, a first belt gear and a second belt gear are assembled on the inner sides of the second gear cover and the third gear cover, and a second supporting rod is fixed on the center of the crossbeam supporting seat through the angle blocks on the two sides; the first supporting rod and the second supporting rod are both in threaded connection with an adjusting screw rod; a belt is tensioned on the bit gear, the first belt gear and the second belt gear, and the bit gear, the first belt gear and the second belt gear are all engaged with the belt. The present application can realize the screwing in and screwing out operation of the bolt without swinging in a narrow, small, deep and long operation space, and has the characteristics of high efficiency and simple operation.

Description

Technical Field

[0001] This invention relates to the field of mechanical assembly and adjustment technology, and in particular to a belt gear wrench. Background Technology

[0002] When assembling and adjusting instruments and equipment in confined spaces, some flexible tools are often indispensable. The proper use of these tools can not only accomplish some difficult tasks but also significantly improve work efficiency. Ratchet wrenches are an indispensable type of these flexible tools. They can reciprocate within narrow spaces to install and remove bolts. However, the working space of a ratchet wrench is limited by the length of its handle. In narrow, deep spaces, it is difficult for a ratchet wrench to achieve a fixed angle of rotation, thus making it unsuitable for installing or removing bolts in such spaces. Summary of the Invention

[0003] This invention addresses the challenge of ratchet wrenches achieving fixed-angle rotation in narrow, deep spaces by providing a belt gear wrench. This wrench allows for screwing in and out of bolts without the need for oscillation in such spaces, offering high efficiency and ease of operation.

[0004] The belt-driven gear wrench provided by this invention includes a bit gear, a gear cap, a first support rod, an adjusting screw, a belt, a second support rod, a corner block, a crossbeam support, a first belt gear, and a second belt gear, wherein...

[0005] The bit gear has a first circular step and a second circular step extending outward along the axial direction on both sides. The first circular step has a stepped shaft for assembling with the bit. The first support rod has a first gear cover on one side, and the first gear cover has a first circular through hole that matches the shape of the first circular step. The first gear cover is fitted onto the first circular step through the first circular through hole. The gear cover has a second circular through hole that matches the shape of the second circular step. The gear cover is fitted onto the second circular step through the second circular through hole. The first support rod has a step on the other side corresponding to the first gear cover. The step and the gear cover are spliced ​​together and fixed together with bolts.

[0006] The two ends of the crossbeam support are provided with a second gear cover and a third gear cover. Both the second gear cover and the third gear cover have mounting holes. The first belt gear and the second belt gear are hollow gears. The first belt gear and the second belt gear are assembled on the inside of the second gear cover and the third gear cover by bolts and nuts. The second support rod is fixed to the center of the crossbeam support by corner blocks on both sides.

[0007] The first and second support rods are threadedly connected at both ends of the adjusting screw.

[0008] The belt is tensioned on the bit gear, the first belt gear, and the second belt gear, all of which mesh with the belt.

[0009] Preferably, the corner block has a right-angled triangle cross-section, and the two perpendicular connecting surfaces of the corner block are respectively provided with a slot and a fixing hole. The slot is used to fix the corner block and the second support rod, and the fixing hole is used to fix the corner block and the crossbeam support.

[0010] Preferably, both the head and body of the stepped shaft have hexagonal cross-sections, and the head is used to assemble different types of wrench bits.

[0011] Preferably, the tension of the belt is adjusted by adjusting the connection position between the bolt and the slot.

[0012] The belt gear wrench provided by this invention includes a bit gear, a gear cover, a first support rod, an adjusting screw, a belt, a second support rod, and a belt gear, wherein...

[0013] The bit gear has a first circular step and a second circular step extending outward along the axial direction on both sides. A stepped shaft is provided on the first circular step. A first gear cover is provided on one side of the first support rod. The first gear cover has a first circular through hole that matches the shape of the first circular step. The first gear cover is fitted onto the first circular step through the first circular through hole. The gear cover has a second circular through hole that matches the shape of the second circular step. The gear cover is fitted onto the second circular step through the second circular through hole. The first support rod has a step on the other side corresponding to the first gear cover. The step and the gear cover are spliced ​​together and fixed together with bolts.

[0014] The second support rod has belt gear covers on both sides, and each belt gear cover has a mounting hole. The belt gear is a hollow gear. The belt gear is assembled on the inside of the two belt gear covers by bolts and nuts.

[0015] The first and second support rods are threadedly connected at both ends of the adjusting screw.

[0016] A belt is tensioned on the bit gear and the belt gear, and the bit gear and the belt gear mesh with the belt.

[0017] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0018] 1. The belt gear wrench provided by this invention can adjust the belt tension angle and the total length of the wrench by changing the adjusting screw and belt of different lengths, thereby adapting to wrench application environments with different widths and depths.

[0019] 2. The belt gear wrench provided by this invention is particularly suitable for narrow and deep operating spaces. When using this wrench, there is no need to swing it, so that the bolt can be screwed in and out. It has the characteristics of high efficiency and simple operation. Attached Figure Description

[0020] Figure 1 This is a front view structural schematic diagram of the belt and gear wrench provided in Embodiment 1 of the present invention;

[0021] Figure 2 This is a rear view structural schematic diagram of the belt gear wrench provided in Embodiment 1 of the present invention;

[0022] Figure 3 This is a side view of the belt and gear wrench provided in Embodiment 1 of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the bit gear provided in Embodiment 1 of the present invention;

[0024] Figure 5 This is a partial structural schematic diagram of the belt and gear wrench provided in Embodiment 1 of the present invention;

[0025] Figure 6 This is a schematic diagram of the assembly structure of the first belt gear according to Embodiment 1 of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the gear cover provided in Embodiment 1 of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the first support rod provided according to Embodiment 1 of the present invention;

[0028] Figure 9 This is a side view of the belt and gear wrench provided in Embodiment 2 of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the bit gear provided in Embodiment 2 of the present invention.

[0030] The reference numerals in the accompanying drawings of Embodiment 1 include: bit gear 1, gear cover 2, first support rod 3, adjusting screw 4, belt 5, second support rod 6, corner block 7, crossbeam support seat 8, first belt gear 9, second belt gear 10, first circular step 1-1, second circular step 1-2 and step shaft 1-3, first gear cover 3-1, second gear cover 8-1, and third gear cover 8-2.

[0031] The reference numerals in the accompanying drawings of Embodiment 2 include: bit gear 1`, gear cover 2`, first support rod 3`, adjusting screw 4`, belt 5`, second support rod 6`, belt gear 7`, first circular step 1-1`, second circular step 1-2`, stepped shaft 1-3`, gear cover 3-1` and belt gear cover 6-1`. Detailed Implementation

[0032] In the following description, embodiments of the invention will be described with reference to the accompanying drawings. In the description below, the same modules are denoted by the same reference numerals. Where the same reference numerals are used, their names and functions are also the same. Therefore, their detailed description will not be repeated.

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not constitute a limitation thereof.

[0034] Example 1

[0035] Figure 1 The front view of the belt and gear wrench provided according to Embodiment 1 of the present invention is shown; Figure 2 The rear view of the belt gear wrench provided according to Embodiment 1 of the present invention is shown; Figure 3 A side view of the belt and gear wrench provided according to Embodiment 1 of the present invention is shown; Figure 4 This illustrates the structure of a bit gear according to Embodiment 1 of the present invention; Figure 5 A partial structure of the belt gear wrench provided according to Embodiment 1 of the present invention is shown; Figure 6 An assembly structure for a first belt gear according to Embodiment 1 of the present invention is shown; Figure 7 The structure of the gear cover provided according to Embodiment 1 of the present invention is shown; Figure 8 The structure of the first support rod provided according to Embodiment 1 of the present invention is shown.

[0036] The belt-driven gear wrench provided in Embodiment 1 of the present invention includes a bit gear 1, a gear cover 2, a first support rod 3, an adjusting screw 4, a belt 5, a second support rod 6, a corner block 7, a crossbeam support 8, a first belt gear 9, and a second belt gear 10, wherein...

[0037] The bit gear 1 has a first circular step 1-1 and a second circular step 1-2 extending outward along the axial direction on both sides. The first circular step 1-1 is provided with a stepped shaft 1-3, which is used to assemble with the bit. The first support rod 3 has a first gear cover 3-1 on one side. The first gear cover 3-1 has a first circular through hole that matches the shape of the first circular step 1-1. The first gear cover 3-1 is fitted onto the first circular step 1-1 through the first circular through hole. The gear cover 2 has a second circular through hole that matches the shape of the second circular step 1-2. The gear cover 2 is fitted onto the second circular step 1-2 through the second circular through hole. The first support rod 3 has a step on the other side corresponding to the first gear cover 3-1. The step is spliced ​​with the gear cover 2 and fixed together with bolts.

[0038] The two ends of the crossbeam support 8 are provided with a second gear cover 8-1 and a third gear cover 8-2. Both the second gear cover 8-1 and the third gear cover 8-2 are provided with mounting holes. The first belt gear 9 and the second belt gear 10 are both hollow gears. The first belt gear 9 and the second belt gear 10 are assembled on the inner side of the second gear cover 8-1 and the third gear cover 8-2 by bolts and nuts. The second support rod 6 is fixed to the center of the crossbeam support 8 by the corner blocks 7 on both sides.

[0039] The first support rod 3 and the second support rod 6 are threadedly connected to the two ends of the adjusting screw 4.

[0040] The belt 5 is tensioned on the bit gear 1, the first belt gear 9, and the second belt gear 10. The bit gear 1, the first belt gear 9, and the second belt gear 10 are all meshed with the belt 5.

[0041] The corner block 7 has a right-angled triangle cross section. The two perpendicular connecting surfaces of the corner block 7 are respectively provided with slots and fixing holes. The slots are used to fix the corner block 7 and the second support rod 6, and the fixing holes are used to fix the corner block 7 and the crossbeam support seat 8.

[0042] The cross-sections of the head and body of the stepped shafts 1-3 are both hexagonal, and the head is used to assemble different types of wrench bits.

[0043] The tension of belt 5 is adjusted by adjusting the connection position between the bolt and the slot.

[0044] When using the belt-driven gear wrench provided in Example 1, one end of the wrench with the bit is inserted into the bolt to be installed or removed. Then, the belt 5 is pulled, which drives the bit gear 1, the first belt gear 9, and the second belt gear 10 to rotate, thereby screwing the bolt in or out. During operation, the bolt installation and removal can be switched by changing the left and right positions of the belt 5.

[0045] Example 2

[0046] Figure 9 The side view of the belt gear wrench provided according to Embodiment 2 of the present invention is shown;

[0047] Figure 10 The structure of the bit gear provided according to Embodiment 2 of the present invention is shown.

[0048] like Figure 9-10 As shown, the belt gear wrench provided in Embodiment 2 of the present invention includes a bit gear 1', a gear cover 2', a first support rod 3', an adjusting screw 4', a belt 5', a second support rod 6', and a belt gear 7', wherein...

[0049] The bit gear 1' has a first circular step 1-1' and a second circular step 1-2' extending outward along the axial direction on both sides. The first circular step 1-1' is provided with a stepped shaft 1-3'. The first support rod 3' has a first gear cover 3-1' on one side. The first gear cover 3-1' has a first circular through hole that matches the shape of the first circular step 1-1'. The first gear cover 3-1' is fitted onto the first circular step 1-1' through the first circular through hole. The gear cover 2' has a second circular through hole that matches the shape of the second circular step 1-2'. The gear cover 2' is fitted onto the second circular step 1-2' through the second circular through hole. The first support rod 3' has a step on the other side corresponding to the first gear cover 3-1'. The step is spliced ​​with the gear cover 2' and fixed together with bolts.

[0050] The second support rod 6' has belt gear covers 6-1' on both sides. Both belt gear covers 6-1' have mounting holes. The belt gear 7' is a hollow gear. The belt gear 7' is assembled on the inside of the two belt gear covers 6-1' by bolts and nuts.

[0051] The first support rod 3' and the second support rod 6' are threadedly connected to the two ends of the adjusting screw 4'.

[0052] A belt 5' is tensioned on the bit gear 1' and the belt gear 7', and the bit gear 1' and the belt gear 7' mesh with the belt 5'.

[0053] When using the belt-driven gear wrench provided in Example 2, one end of the wrench with the bit is inserted into the bolt to be installed or removed. Then, the belt 5' is pulled, which drives the bit gear 1' and the belt gear 7' to rotate, thereby screwing the bolt in or out. During operation, the bolt installation and removal can be switched by changing the left and right positions of the belt 5'.

[0054] The belt gear wrenches provided in Embodiments 1 and 2 of this invention are only applicable to the light torque stage during bolt installation or removal, and are not applicable to the torque stage after the bolt is screwed in or the high torque output stage before the bolt is screwed out.

[0055] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this invention disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0056] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A belt-driven gear wrench, characterized in that, Includes bit gear (1), gear cover (2), first support rod (3), adjusting screw (4), belt (5), second support rod (6), corner block (7), crossbeam support seat (8), first belt gear (9), and second belt gear (10), among which, The bit gear (1) has a first circular step (1-1) and a second circular step (1-2) extending outward along the axial direction on both sides. The first circular step (1-1) is provided with a stepped shaft (1-3), which is used to assemble with the bit. The first support rod (3) is provided with a first gear cover (3-1) on one side. The first gear cover (3-1) is provided with a first circular through hole that matches the shape of the first circular step (1-1). The first gear cover (3-1) is fitted onto the first circular step (1-1) through the first circular through hole. The gear cover (2) is provided with a second circular through hole that matches the shape of the second circular step (1-2). The gear cover (2) is fitted onto the second circular step (1-2) through the second circular through hole. The first support rod (3) is provided with a step on the other side corresponding to the first gear cover (3-1). The step is spliced ​​with the gear cover (2) and fixed together with bolts. The two ends of the crossbeam support (8) are provided with a second gear cover (8-1) and a third gear cover (8-2). The second gear cover (8-1) and the third gear cover (8-2) are both provided with mounting holes. The first belt gear (9) and the second belt gear (10) are both hollow gears. The first belt gear (9) and the second belt gear (10) are assembled on the inner side of the second gear cover (8-1) and the third gear cover (8-2) by bolts and nuts. The second support rod (6) is fixed to the center of the crossbeam support (8) by the corner blocks (7) on both sides. The first support rod (3) and the second support rod (6) are threadedly connected to both ends of the adjusting screw (4); The belt (5) is tensioned on the bit gear (1), the first belt gear (9) and the second belt gear (10), and the bit gear (1), the first belt gear (9) and the second belt gear (10) are all engaged with the belt (5); The corner block (7) has a right-angled triangle cross section. The two perpendicular connecting surfaces of the corner block (7) are respectively provided with a slot and a fixing hole. The slot is used to fix the corner block (7) and the second support rod (6), and the fixing hole is used to fix the corner block (7) and the crossbeam support seat (8). The stepped shaft (1-3) has a hexagonal cross-section for both the shaft head and the shaft body. The shaft head is used to assemble different types of wrench bits.

2. The belt-driven gear wrench according to claim 1, characterized in that, The tension of the belt (5) can be adjusted by adjusting the connection position between the bolt and the slot.

3. A belt-driven gear wrench, characterized in that, It includes a bit gear (1'), a gear cap (2'), a first support rod (3'), an adjusting screw (4'), a belt (5'), a second support rod (6'), and a belt gear (7'), among which, The bit gear (1`) has a first circular step (1-1`) and a second circular step (1-2`) extending outward along the axial direction on both sides. The first circular step (1-1`) is provided with a stepped shaft (1-3`). The first support rod (3`) is provided with a first gear cover (3-1`) on one side. The first gear cover (3-1`) is provided with a first circular through hole that matches the shape of the first circular step (1-1`). The first gear cover (3-1`) is fitted onto the first circular step (1-1`) through the first circular through hole. The gear cover (2`) is provided with a second circular through hole that matches the shape of the second circular step (1-2`). The gear cover (2`) is fitted onto the second circular step (1-2`) through the second circular through hole. The first support rod (3`) is provided with a step on the other side corresponding to the first gear cover (3-1`). The step is spliced ​​with the gear cover (2`) and fixed together with bolts. The second support rod (6`) is provided with belt gear covers (6-1`) on both sides. The belt gear covers (6-1`) on both sides are provided with mounting holes. The belt gear (7`) is a hollow gear. The belt gear (7`) is assembled on the inner side of the two belt gear covers (6-1`) by bolts and nuts. The first support rod (3`) and the second support rod (6`) are threaded to both ends of the adjusting screw (4`); The bit gear (1`) and the belt gear (7`) are tensioned with the belt (5`), and the bit gear (1`) and the belt gear (7`) mesh with the belt (5`).

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