Tightening equipment for transmission shaft

Abstract

The invention discloses tightening equipment for a transmission shaft. The tightening equipment comprises an adjusting mechanism, a tightening mechanism and a limiting mechanism. The adjusting mechanism comprises a height adjusting assembly, an inclination adjusting assembly and a rotating assembly, the rotating assembly comprises a rotating plate and a rotating shaft arranged on the rotating plate, and the rotating shaft drives the rotating plate to rotate; the tightening mechanism comprises at least two electric tightening tools; the rotating shaft is connected to the gradient adjusting assembly, the electric tightening tool and the limiting mechanism are arranged on the two sides of the rotating plate respectively, the height adjusting assembly is used for adjusting the height of the rotating shaft, the gradient adjusting assembly is used for adjusting the gradient of the rotating shaft, the rotating shaft is used for finely adjusting the tightening mechanism to align to the transmission shaft, and the limiting mechanism abuts against the transmission shaft. The electric tightening tools arranged on the rotating plate are adjusted to be aligned with the bolts on the transmission shaft, accurate positioning is achieved, meanwhile, due to the design of the multiple electric tightening tools, an anti-rotation tool does not need to be used any more, and meanwhile the assembly efficiency of the transmission shaft is improved.

Description

Technical Field

[0001] The invention relates to the field of transmission shafts, and in particular to a tightening device for transmission shafts. Background Art

[0002] The transmission shaft is a high-speed, low-support rotating body, so its dynamic balance is crucial. Generally, the transmission shaft must be tested for dynamic balance before leaving the factory and adjusted on a balancing machine. For front-engine, rear-wheel drive vehicles, it is the shaft that transmits the rotation of the transmission to the main reducer. It can have several sections, and the sections can be connected by universal joints. The universal joint ensures the change of the angle between the transmission output shaft and the drive axle input shaft, and realizes the equal angular speed transmission of the two shafts.

[0003] At present, there are many bolts on the transmission shaft, and bolt tightening equipment is needed to perform safe operations during the assembly process of the transmission shaft. There are two main ways to tighten the existing transmission shaft: one is to use a pulse tool to tighten the bolts, which can prevent the transmission shaft from rotating due to reverse force; the other is to use an anti-rotation tool at one end of the transmission shaft to limit the rotation of the transmission shaft, and tighten the bolts one by one with a handheld single motor tool.

[0004] However, the accuracy of the pulse tool is only 15%, which makes it difficult to achieve the expected tightening effect; in addition, there is a risk of the anti-rotation tool falling off, and the tightening efficiency of the handheld single-motor tool is low, resulting in inconvenience in the transmission shaft assembly process. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a tightening device for a transmission shaft, aiming to solve the problem that the accuracy of the pulse tools currently used is only 15%, making it difficult to achieve the expected tightening effect; in addition, there is a risk of the anti-rotation tool falling off, and the tightening efficiency of a handheld single-motor tool is low, resulting in inconvenience in the assembly process of the transmission shaft.

[0006] To achieve the above object, the present invention is implemented through the following technical solutions: A tightening device for a transmission shaft, comprising an adjustment mechanism, a tightening mechanism and a limiting mechanism respectively arranged on both sides of the adjustment mechanism;

[0007] The adjusting mechanism comprises a height adjusting component, an inclination adjusting component arranged at one end of the height adjusting component, and a rotating component arranged at one end of the inclination adjusting component away from the height adjusting component, wherein the rotating component comprises a rotating plate and a rotating shaft arranged on the rotating plate, and the rotating shaft drives the rotating plate to rotate;

[0008] A tightening mechanism, comprising at least two electric tightening tools;

[0009] Among them, the rotating shaft is connected to the inclination adjustment component, the electric tightening tool and the limiting mechanism are respectively arranged on both sides of the rotating plate, the height adjustment component is used to adjust the height of the rotating shaft, the inclination adjustment component is used to adjust the inclination of the rotating shaft, the rotating shaft is used to fine-tune the tightening mechanism to align with the transmission shaft, and the limiting mechanism is against the transmission shaft.

[0010] In summary, a tightening device for a transmission shaft proposed in the present invention is used to adjust the electric tightening tooling provided on the rotating plate to align with the bolts on the transmission shaft through a height adjustment component, an inclination adjustment component and a rotating component connected in sequence to achieve accurate positioning. At the same time, the design of multiple electric tightening tools eliminates the need to use anti-rotation tools, and also improves the assembly efficiency of the transmission shaft. Specifically, the tightening device includes an adjustment mechanism, a tightening mechanism and a limiting mechanism respectively provided on both sides of the adjustment mechanism. The tightening mechanism includes a height adjustment component, an inclination adjustment component provided at one end of the height adjustment component, and a rotating component provided at one end of the inclination adjustment component away from the height adjustment component. The rotating component includes a rotating plate and a rotating shaft provided on the rotating plate, and the rotating shaft drives the rotating plate to rotate. The tightening mechanism includes at least two electric tightening tools. The rotating shaft is connected to the inclination adjustment assembly, and the electric tightening tool and the limit mechanism are respectively arranged on both sides of the rotating plate. The height adjustment assembly is used to adjust the height of the rotating shaft, and the inclination adjustment assembly is used to adjust the inclination of the rotating shaft. The rotating shaft is used to fine-tune the tightening mechanism to align the transmission shaft, and the limit mechanism is against the transmission shaft. The design of multiple electric tightening tools not only avoids reverse force, but also improves the assembly efficiency of the transmission shaft bolts.

[0011] According to one aspect of the above technical solution, the height adjustment assembly includes a first pipe, a second pipe passing through the first pipe, and an adjustment rope connecting the first pipe and the second pipe, one end of the adjustment rope is connected to an end of the second pipe away from the first pipe.

[0012] According to one aspect of the above technical solution, the adjustment rope is retracted at an end of the first pipe away from the second pipe to control the penetration depth of the second pipe.

[0013] According to one aspect of the above technical solution, the inclination adjustment assembly includes a first mounting plate connected to the second pipe, and a second mounting plate movably connected to the first mounting plate, the first mounting plate extends a first coupling member toward the second mounting plate, and the second mounting plate extends a second coupling member toward the first mounting plate.

[0014] According to one aspect of the above technical solution, the first coupling member and the second coupling member are movably connected via a coupling block, and a connection direction between the first coupling member and the coupling block is perpendicular to a connection direction between the second coupling member and the coupling block.

[0015] According to one aspect of the above technical solution, a plurality of limiting columns are provided on the first mounting plate in a direction toward the second mounting plate.

[0016] According to one aspect of the above technical solution, an extension plate is provided on the second mounting plate away from the first mounting plate, the rotating plate is arranged parallel to the extension plate, and an end of the rotating shaft away from the rotating plate passes through the extension plate.

[0017] According to one aspect of the above technical solution, a limiting rod is further provided on the side of the extension plate facing the rotating plate, and a limiting groove is correspondingly provided on the rotating plate, and the limiting rod is inserted into the limiting groove.

[0018] According to one aspect of the above technical solution, the limiting mechanism includes a mounting bracket connected to the rotating plate, and a limiting member provided on the mounting bracket, and the limiting member abuts against the end surface of the transmission shaft.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a tightening device for a transmission shaft in one embodiment of the present invention;

[0021] Figure 2 It is a structural schematic diagram of a height adjustment assembly in one embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of the assembly of the inclination adjustment component and the limiting mechanism in one embodiment of the present invention;

[0023] Figure 4 It is a structural schematic diagram of a tilt adjustment assembly in one embodiment of the present invention;

[0024] Figure 5 Schematic diagram of the structure of a rotating plate in one embodiment of the present invention.

[0025] Component symbol description:

[0026] Adjustment mechanism 100, height adjustment assembly 110, first pipe 111, second pipe 112, adjustment rope 113, balance rod 114, inclination adjustment assembly 120, first mounting plate 121, first coupling member 122, second mounting plate 123, second coupling member 124, limiting column 125, extension plate 126, limiting rod 127, coupling block 128, rotating assembly 130, rotating plate 131, limiting groove 132, rotating shaft 133, tightening mechanism 200, electric tightening tool 210, limiting mechanism 300, mounting bracket 310, limiting member 320. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] See also Figure 1-Figure 5 , which is a schematic structural diagram of a tightening device for a transmission shaft provided in one embodiment of the invention, the tightening device for the transmission shaft comprises an adjustment mechanism 100, a tightening mechanism 200 and a limiting mechanism 300 respectively arranged on both sides of the adjustment mechanism 100, wherein:

[0031] In order to overcome the shortcomings of the current method of using pulse tools or hand-held single-motor tools to assemble the transmission shaft, the adjustment mechanism 100 is used to adjust the tightening mechanism 200 on it so that it is aligned with the bolt to be tightened on the transmission shaft, and the limiting mechanism 300 is used to abut against the transmission shaft for assembly. The tightening mechanism 200 includes a height adjustment component 110, an inclination adjustment component 120 provided at one end of the height adjustment component 110, and a rotating component 130 provided at an end of the inclination adjustment component 120 away from the height adjustment component 110. The tightening mechanism 200 and the limiting mechanism 300 are provided on the rotating component 130, and the tightening mechanism 200 is adjusted to a suitable assembly height by using the height adjustment component 110 to assemble the transmission shaft, and the inclination of the tightening mechanism 200 is adjusted by using the inclination adjustment component 120, and finally the tightening mechanism 200 is driven by the rotating component 130 to directly align with the bolt.

[0032] In order to adjust the height of the tightening mechanism 200, the height adjustment assembly 110 includes a first pipe 111, a second pipe 112 inserted in the first pipe 111, and an adjustment rope 113 connecting the first pipe 111 and the second pipe 112, one end of the adjustment rope 113 is connected to the end of the second pipe 112 away from the first pipe 111. In this embodiment, the second pipe 112 can move in the first pipe 111, and the depth of the second pipe 112 inserted into the first pipe 111 is controlled by the adjustment rope 113 on one side, thereby controlling the height of the tightening mechanism 200. A balance rod 114 is also provided on the other side of the second pipe 112, one end of the balance rod 114 is provided at the end of the second pipe 112 away from the first pipe 111, and moves with the second pipe 112, and the other end of the balance rod 114 is inserted in the clamp on the first pipe 111 to form a force balance state with the adjustment rope 113 on the opposite side, so as to ensure that the second pipe 112 can move smoothly in the first pipe 111.

[0033] After adjusting the height of the tightening mechanism 200, the position of the tightening mechanism 200 is adjusted using the inclination adjustment assembly 120 so that the tightening mechanism 200 is close to the bolt on the transmission shaft. The inclination adjustment assembly 120 includes a first mounting plate 121 connected to the second pipe 112, and a second mounting plate 123 movably connected to the first mounting plate 121, the first mounting plate 121 extends a first coupling member 122 toward the second mounting plate 123, and the second mounting plate 123 extends a second coupling member 124 toward the first mounting plate 121. The first coupling member 122 and the second coupling member 124 are staggered and non-contacting, so that when the first mounting plate 121 and the second mounting plate 123 rotate relative to each other, no interference between parts occurs.

[0034] In order to realize the function of relative rotation of the first mounting plate 121 and the second mounting plate 123, a coupling block 128 is provided between the first coupling member 122 and the second coupling member 124. The coupling block 128 is a rectangular parallelepiped. The first coupling member 122 is provided on the opposite side faces of the coupling block 128, and the second coupling member 124 is provided on the other pair of opposite side faces of the coupling block 128, so that the first mounting plate 121 can rotate relative to the coupling block 128 along a first direction, and the second mounting plate 123 can rotate relative to the coupling block 128 along a second direction, and the first direction and the second direction are perpendicular to each other.

[0035] Furthermore, in order to avoid instability of the tightening mechanism 200 due to excessive rotation angle between the first mounting plate 121 and the second mounting plate 123, a plurality of limit columns 125 are extended from the side of the first mounting plate 121 toward the second mounting plate 123. The limit columns 125 are arranged at the four corners of the first mounting plate 121, and adjustment space is left between the top of the limit column 125 and the end face of the second mounting plate 123 for relative rotation of the first mounting plate 121 and the second mounting plate 123.

[0036] In order to connect with the rotating assembly 130, the second mounting plate 123 is provided with an extension plate 126 on the side facing away from the first mounting plate 121, and the rotating assembly 130 is provided on the extension plate 126. The rotating assembly 130 includes a rotating plate 131 arranged parallel to the extension plate 126, and a rotating shaft 133 arranged on the rotating plate 131, one end of the rotating shaft 133 is connected to the rotating plate 131, and the other end passes through the extension plate 126. The rotating shaft 133 is rotated to drive the rotating plate 131 to rotate, thereby rotating the tightening mechanism 200 arranged on the rotating plate 131. It is worth noting that the tightening mechanism 200 and the limiting mechanism 300 are respectively provided on both sides of the rotating plate 131.

[0037] Since the height adjustment assembly 110 and the inclination adjustment assembly 120 have already made a large adjustment to the tightening mechanism 200, the rotating assembly 130 is used to fine-tune the tightening mechanism 200. Therefore, a limiting rod 127 is also provided on the side of the extension plate 126 facing the rotating plate 131. One end of the limiting rod 127 is fixed on the rotating plate 131, and the other end is penetrated on the rotating plate 131. Correspondingly, an arc-shaped limiting groove 132 is also provided on the rotating plate 131. The limiting groove 132 is arranged to follow the rotating track of the rotating plate 131, and since the length of the limiting groove 132 is limited, the adjustment range of the tightening mechanism 200 arranged on the rotating plate 131 is also limited. The length setting of the limit groove 132 is based on the large-scale adjustment of the height adjustment component 110 and the inclination adjustment component 120, and then the use of the rotating shaft 133 to drive the rotating plate 131 to rotate, so that the tightening mechanism 200 can be accurately aligned with the bolt to be tightened on the transmission shaft under the joint adjustment of the height adjustment component 110, the inclination adjustment component 120, and the rotating component 130.

[0038] Since the transmission shaft will rotate during the assembly process due to the reverse force when a single motor is used for the bolt tightening process, a multi-electric tightening tool 210 is used. In this embodiment, there are two motor tightening tools, and the assembly positions are set corresponding to the adjacent bolts on the transmission shaft, so that when assembling the transmission shaft, there is no need to use an anti-rotation tool, avoiding the influence of the reverse force, and the transmission shaft can be directly assembled. At the same time, the dual-motor tightening tool also improves assembly efficiency and reduces labor intensity.

[0039] During the assembly process of the transmission shaft, a limiting mechanism 300 is required to abut against the end face of the transmission shaft. The limiting mechanism 300 includes a mounting bracket 310 connected to the rotating plate 131, and a limiting member 320 arranged on the mounting bracket 310. The limiting member 320 is configured to conform to the transmission shaft so that when the limiting member 320 abuts against the end face of the transmission shaft, it fits the transmission shaft to prevent the transmission shaft from moving along its length direction.

[0040] In summary, a tightening device for a transmission shaft proposed in the present invention is used to adjust the electric tightening tooling provided on the rotating plate to align with the bolts on the transmission shaft through a height adjustment component, an inclination adjustment component and a rotating component connected in sequence to achieve accurate positioning. At the same time, the design of multiple electric tightening tools eliminates the need to use anti-rotation tools, and also improves the assembly efficiency of the transmission shaft. Specifically, the tightening device includes an adjustment mechanism, a tightening mechanism and a limiting mechanism respectively provided on both sides of the adjustment mechanism. The tightening mechanism includes a height adjustment component, an inclination adjustment component provided at one end of the height adjustment component, and a rotating component provided at one end of the inclination adjustment component away from the height adjustment component. The rotating component includes a rotating plate and a rotating shaft provided on the rotating plate, and the rotating shaft drives the rotating plate to rotate. The tightening mechanism includes at least two electric tightening tools. The rotating shaft is connected to the inclination adjustment assembly, and the electric tightening tool and the limit mechanism are respectively arranged on both sides of the rotating plate. The height adjustment assembly is used to adjust the height of the rotating shaft, and the inclination adjustment assembly is used to adjust the inclination of the rotating shaft. The rotating shaft is used to fine-tune the tightening mechanism to align the transmission shaft, and the limit mechanism is against the transmission shaft. The design of multiple electric tightening tools not only avoids reverse force, but also improves the assembly efficiency of the transmission shaft bolts.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A tightening device for a transmission shaft, It is characterized in that It comprises an adjusting mechanism, a tightening mechanism and a limiting mechanism respectively arranged on both sides of the adjusting mechanism; The adjusting mechanism comprises a height adjusting component, an inclination adjusting component arranged at one end of the height adjusting component, and a rotating component arranged at one end of the inclination adjusting component away from the height adjusting component, wherein the rotating component comprises a rotating plate and a rotating shaft arranged on the rotating plate, and the rotating shaft drives the rotating plate to rotate; A tightening mechanism, comprising at least two electric tightening tools; Among them, the rotating shaft is connected to the inclination adjustment component, the electric tightening tool and the limiting mechanism are respectively arranged on both sides of the rotating plate, the height adjustment component is used to adjust the height of the rotating shaft, the inclination adjustment component is used to adjust the inclination of the rotating shaft, the rotating shaft is used to fine-tune the tightening mechanism to align with the transmission shaft, and the limiting mechanism is against the transmission shaft.

2. The tightening device for a transmission shaft according to claim 1, It is characterized in that The height adjustment assembly includes a first pipe, a second pipe passing through the first pipe, and an adjustment rope connecting the first pipe and the second pipe, wherein one end of the adjustment rope is connected to an end of the second pipe away from the first pipe.

3. The tightening device for a transmission shaft according to claim 2, It is characterized in that The adjusting rope is contracted at one end of the first pipe away from the second pipe to control the penetration depth of the second pipe.

4. The tightening device for a transmission shaft according to claim 1, It is characterized in that The inclination adjustment assembly includes a first mounting plate connected to a second pipe, and a second mounting plate movably connected to the first mounting plate, wherein a first coupling member extends from the first mounting plate toward the second mounting plate, and a second coupling member extends from the second mounting plate toward the first mounting plate.

5. The tightening device for a transmission shaft according to claim 4, It is characterized in that The first coupling member and the second coupling member are movably connected via a coupling block, and a connection direction between the first coupling member and the coupling block is perpendicular to a connection direction between the second coupling member and the coupling block.

6. The tightening device for a transmission shaft according to claim 5, It is characterized in that A plurality of limiting columns are disposed on the first mounting plate in a direction toward the second mounting plate.

7. The tightening device for a transmission shaft according to claim 1, It is characterized in that An extension plate is provided on the second mounting plate toward a side away from the first mounting plate, the rotating plate is arranged parallel to the extension plate, and an end of the rotating shaft away from the rotating plate passes through the extension plate.

8. The tightening device for a transmission shaft according to claim 7, It is characterized in that A limiting rod is further provided on one side of the extension plate facing the rotating plate, and a limiting groove is correspondingly provided on the rotating plate, and the limiting rod is inserted into the limiting groove.

9. The tightening device for a transmission shaft according to claim 1, It is characterized in that The limiting mechanism comprises a mounting bracket connected to the rotating plate, and a limiting member arranged on the mounting bracket, wherein the limiting member abuts against the end surface of the transmission shaft.

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