Anti-following-rotation locking tool

Abstract

The utility model relates to an auxiliary assembly tool, in particular to an anti-following-rotation locking tool which comprises a bearing table and a limiting body. The limiting main body is arranged on the first surface of the bearing table; the limiting main body comprises a cylinder body and a limiting column; the cylinder body is connected with the bearing table, and the limiting column is arranged at the top of the cylinder body; a middle shaft is arranged inside the cylinder body, a gear is sleeved outside the middle shaft, the limiting column penetrates through an opening of the gear, and a locking piece is connected with the end portion of the middle shaft in a threaded mode. Compared with the prior art, the problem that in the prior art, when a locking bolt is screwed in, a gear can rotate along with the locking bolt is solved; according to the scheme, rotation of the gear is limited in the motor installation and intermediate shaft locking process.

Description

Technical Field

[0001] The utility model relates to an auxiliary assembly tool, in particular to an anti-rotation locking tool. Background Art

[0002] Electric vehicles are powered by an onboard power supply and driven by an electric motor. To put it in more detail: the power supply provides electrical energy to the electric vehicle's drive motor, and the electric vehicle motor converts the power supply's electrical energy into mechanical energy, which is then driven through a transmission device or directly to drive various components to operate.

[0003] When the gear is connected to the motor shaft, a locking bolt can be used to ensure the fixity of the gear. Tightening it tightly can prevent the gear from loosening. If the position of the gear needs to be changed or the gear needs to be replaced, just loosen the locking nut. Usually, during the assembly of the motor, the locking bolt is tightened at the end of the intermediate shaft with the gear and bearing to achieve the locking of the gear, bearing and intermediate shaft. However, due to the large torque generated during the tightening of the locking bolt, the gear will be driven to rotate, which may cause the locking bolt to fail to lock and fall off, causing the remaining gears and bearings on the intermediate shaft to fall off, and eventually causing the structure to disintegrate, causing serious damage to the system and causing serious accidents. Therefore, when screwing in the locking bolt, it is necessary to fully tighten it to ensure that the locking bolt, intermediate shaft, bearing and gear are tightly combined.

[0004] However, the prior art lacks a suitable tool to limit the rotation of the gear during the installation process, making it difficult to completely tighten the locking bolt during the actual installation process. Therefore, it is necessary to provide an anti-rotation locking tool. Utility Model Content

[0005] The purpose of the present invention is to provide an anti-rotation locking tool in order to solve at least one of the above problems, so as to solve the problem in the prior art that the gear will rotate when the locking bolt is screwed in; this solution realizes the limitation of the rotation of the gear during the motor installation and intermediate shaft locking process.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] An anti-rotation locking tool comprises a bearing platform and a limiting body;

[0008] The limiting body is arranged on the first surface of the supporting platform;

[0009] The limiting body comprises a cylinder and a limiting column; the cylinder is connected to the bearing platform, and the limiting column is arranged on the top of the cylinder;

[0010] An intermediate shaft is arranged inside the cylinder, a gear is arranged outside the intermediate shaft, the limiting column passes through the opening of the gear, and a locking piece is screwed on the end of the intermediate shaft.

[0011] A bearing is arranged between the locking piece and the gear. When the locking piece is screwed in, it is rotated and screwed in, and the gear has a tendency to rotate through the bearing. After the locking piece is installed, the locking piece, the bearing and the gear are abutted against each other in sequence.

[0012] Preferably, a positioning block is further provided inside the cylinder; the positioning block is connected to the first surface of the bearing platform, and the lower end of the intermediate shaft is sleeved outside the positioning block. The positioning block is used to position the intermediate shaft so that the intermediate shaft can be stably arranged inside the cylinder, and further ensures that the intermediate shaft is stable and controllable when the locking member is screwed in.

[0013] Preferably, the bottom of the cylinder is provided with a protrusion, and the lower end of the intermediate shaft is inserted between the protrusion and the positioning block. The protrusion and the positioning block together form an annular slot, which matches the structure and size of the lower end of the intermediate shaft, and can further ensure accurate positioning of the intermediate shaft.

[0014] Preferably, the positioning block is connected to the carrier platform by screwing, plugging or clamping. The positioning block and the carrier platform are assembled in a detachable manner, so that the positioning block can be replaced according to the size of the intermediate shaft actually assembled, so that the tooling can be used for intermediate shafts of various different inner diameters.

[0015] Preferably, the positioning block is coaxially arranged with the cylinder. The coaxially arranged positioning block can make the intermediate shaft coaxially arranged with the cylinder after positioning is completed, so that the positioning can be accurate and non-eccentric.

[0016] Preferably, the limiting posts are provided in plurality and are arranged at intervals along a ring shape. The plurality of limiting posts can jointly limit the gear, disperse the force transmission, avoid deformation of the tooling due to excessive torque during rotation, and increase the service life of the tooling.

[0017] Preferably, six limit columns are arranged at equal intervals.

[0018] Preferably, the tooling further comprises a clamping plate, and the clamping plate is connected to the second surface of the carrier platform. The clamping plate can be used to be clamped by an external device (such as a bench vice) to use the external device as a fixing point.

[0019] Preferably, the top opening of the cylinder is chamfered to facilitate the insertion and removal of the intermediate shaft and reduce defects caused by the collision of the tip.

[0020] Preferably, the locking member is a hexagon socket bolt.

[0021] The working principle of the utility model is:

[0022] After the intermediate shaft is arranged inside the cylinder, the gear is inserted from the end of the intermediate shaft exposed from the cylinder and is held back by the preset structure on the intermediate shaft; at this time, the limiting column on the top of the cylinder passes through the opening on the gear to implement rotation limit on the body of the gear; then the bearing is inserted into the intermediate shaft (against the gear); then the locking piece is screwed into the end of the intermediate shaft exposed from the cylinder to complete the locking of the bearing and the gear. During the tightening process, the rotation and screwing of the locking piece will transmit a rotational force to the gear, and the gear will be blocked by the limiting column and will not rotate.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] By using the tool, the gear can be fully prevented from rotating when it is locked on the intermediate shaft, thereby preventing the locking bolt from failing to be completely tightened and falling off, thereby causing structural damage; at the same time, through reasonable structural design of the tool, it can also be prevented that the tool is twisted and deformed due to excessive torque when locking the gear, making it unusable.

[0025] In the tooling, a coaxial positioning block is provided in the cylinder to ensure that the intermediate shaft can be accurately assembled in the center of the cylinder; and the positioning block is connected to the supporting platform in a detachable manner, and can be selected and replaced according to the inner diameter of the intermediate shaft, so that the tooling can be adapted to intermediate shafts of various sizes.

[0026] In the tooling, the rotation of the gear is limited by a limiting column arranged at the top of the cylinder in the limiting body, and a plurality of limiting columns are arranged at intervals in a ring shape, which can disperse the torque and avoid deformation of the tooling due to excessive torque generated when tightening the limiting part, thereby increasing the service life of the tooling.

[0027] The tooling is also provided with a clamping plate for clamping and fixing by an external device. The clamping of the external device prevents the tooling from rotating as a whole, so that the locking member can be firmly locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the tooling (including the perspective structure of the positioning block);

[0029] Figure 2 It is a schematic diagram of the structural section when the tooling is in use;

[0030] Figure 3 This is a schematic diagram of the top structure of the tooling when it is in use;

[0031] In the figure: 1-carrying platform; 2-limiting body; 21-cylinder; 22-limiting column; 3-positioning block; 4-clamping plate; 5-intermediate shaft; 6-gear; 7-locking piece. DETAILED DESCRIPTION

[0032] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example

[0034] An anti-rotation locking tool, such as Figure 1-3 As shown, it includes a bearing platform 1 and a limiting body 2;

[0035] The limiting body 2 is arranged on the first surface of the carrying platform 1;

[0036] The limiting body 2 includes a cylinder 21 and a limiting column 22; the cylinder 21 is connected to the bearing platform 1, and the limiting column 22 is arranged on the top of the cylinder 21;

[0037] An intermediate shaft 5 is arranged inside the cylinder 21 , a gear 6 is arranged on the outer sleeve of the intermediate shaft 5 , the limiting column 22 passes through the opening of the gear 6 , and a locking piece 7 is screwed on the end of the intermediate shaft 5 .

[0038] More specifically, in this embodiment:

[0039] like Figure 1 As shown, the tooling consists of four parts: a bearing platform 1, a limiting body 2, a positioning block 3 and a clamping plate 4. Among them: the bearing platform 1 is a plate structure, the limiting body 2 is arranged on the upper surface of the bearing platform 1, and the clamping plate 4 is arranged on the lower surface of the bearing platform 1; the limiting body 2 is a cylinder structure, including a cylinder 21 and a limiting column 22, the positioning block 3 is arranged inside the cylinder 21 and connected to the bearing platform 1; the clamping plate 4 is arranged vertically with the bearing platform 1.

[0040] Limiting body 2, such as Figure 1 , 2 As shown, the cylinder 21 is a cylindrical structure, and the internal hollow cavity is used to place the intermediate shaft 5; the limiting posts 22 are arranged at the top of the cylinder 21, and six limiting posts 22 are arranged at equal intervals in a ring shape (in other embodiments, the number and position of the limiting posts 22 can be determined according to the number and position of the holes of the gear 6, and usually multiple limiting posts 22 are arranged to disperse the torque and avoid deformation of the tooling), and the limiting posts 22 are used to limit the rotational movement of the gear 6 (sleeved outside the intermediate shaft 5). The top opening of the cylinder 21 is also chamfered.

[0041] Positioning block 3, such as Figure 1 , 2 As shown, it is arranged at the center of the cylinder 21 and is coaxial with the cylinder 21; further, the cylinder 21 is provided with an annular protrusion at the bottom position inside, which forms an annular gap together with the positioning block 3, and the intermediate shaft 5 is inserted into the gap to form a good positioning. The positioning block 3 is connected to the bearing platform 1 in a detachable manner, which can be screwed, plugged, clamped, etc., and the positioning block 3 can be replaced according to the different inner diameters of the intermediate shaft 5 to adapt to the assembly and locking process of intermediate shafts 5 of various specifications.

[0042] Clamping plate 4, such as Figure 1 , 2 As shown, it is connected to the second surface of the carrier platform 1 by means of threaded connection (bolts), and it protrudes from the carrier platform 1 to form a T-shaped structure, so that the tooling can be clamped by external equipment, thereby ensuring that the tooling as a whole will not rotate during the tightening process.

[0043] like Figure 2 , 3 As shown, when the tool is used, first clamp the clamping plate 4 with a bench vise to fix the tool; insert the intermediate shaft 5 into the gap formed by the bottom of the cylinder 21 and the positioning block 3, then insert the gear 6 and the bearing in sequence, and make the limit column 22 pass through the openings on the gear 6 respectively to limit the rotation of the gear 6; then screw in the locking piece 7 (the present embodiment uses a hexagon socket bolt), and during the screwing process, the gear 6 has a tendency to follow the rotation, and the gear 6 is limited to rotate under the obstruction of the limit column 22; finally, the locking piece 7 is assembled, so that the locking piece 7, the bearing and the gear 6 are closely abutted to complete the overall assembly.

[0044] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. An anti-rotation locking tool, characterized in that: It comprises a bearing platform (1) and a limiting body (2); The limiting body (2) is arranged on the first surface of the supporting platform (1); The limiting body (2) comprises a cylinder (21) and a limiting column (22); the cylinder (21) is connected to the bearing platform (1), and the limiting column (22) is arranged on the top of the cylinder (21); An intermediate shaft (5) is arranged inside the cylinder (21), a gear (6) is arranged on the outer sleeve of the intermediate shaft (5), the limiting column (22) passes through the opening of the gear (6), and a locking piece (7) is screwed on the end of the intermediate shaft (5).

2. The anti-rotation locking tool according to claim 1, characterized in that: A positioning block (3) is also arranged inside the cylinder (21); the positioning block (3) is connected to the first surface of the bearing platform (1), and the lower end of the intermediate shaft (5) is sleeved outside the positioning block (3).

3. The anti-rotation locking tool according to claim 2, characterized in that: The inside of the cylinder (21) is provided with a protruding portion at the bottom, and the lower end of the intermediate shaft (5) is inserted between the protruding portion and the positioning block (3).

4. The anti-rotation locking tool according to claim 2, characterized in that: The positioning block (3) is connected to the supporting platform (1) by screw connection, plug connection or clamp connection.

5. The anti-rotation locking tool according to claim 2, characterized in that: The positioning block (3) is coaxially arranged with the cylinder (21).

6. The anti-rotation locking tool according to claim 1, characterized in that: A plurality of the limiting columns (22) are provided, and the limiting columns (22) are arranged at intervals along a ring shape.

7. The anti-rotation locking tool according to claim 6, characterized in that: Six limit posts (22) are arranged at equal intervals.

8. The anti-rotation locking tool according to claim 1, characterized in that: The tooling also includes a clamping plate (4), and the clamping plate (4) is connected to the second surface of the supporting platform (1).

9. The anti-rotation locking tool according to claim 1, characterized in that: The top opening of the cylinder (21) is provided with a chamfer.

10. The anti-rotation locking tool according to claim 1, characterized in that: The locking piece (7) is a hexagon socket bolt.

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