Cross key assembly tool

Abstract

The utility model provides a cross-shaped key assembling tool, which relates to the field of cross-shaped key assembling, and adopts the technical scheme that the cross-shaped key assembling tool comprises a positioning cylinder and a push rod, the push rod is axially and movably arranged in the positioning cylinder, a positioning block is arranged at the positioning end of the positioning cylinder and can extend into a key groove to be installed, and the push rod is movably arranged in the positioning cylinder. A storage part is arranged in the positioning cylinder and close to the positioning end of the positioning cylinder, the storage part is used for storing a to-be-mounted cross key, and the push rod can extend into the storage part. According to the utility model, the cross key can be prevented from being manually and directly held by hands for assembly, and the assembly efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of cross key assembly, in particular to a cross key assembly tool. Background Art

[0002] Loosening is a common problem in threaded locking components, especially automotive components. They are subject to vibration and other external forces for a long time. Rotating parts often become loose under the action of vibration, impact, tension and compression, which seriously affects the normal operation of the mechanism. To solve this technical problem, during the assembly of the drive axle assembly with a pulley-side reducer, after the hub assembly and bearing are installed on the shaft head, the ring gear bracket needs to be assembled to the shaft head spline of the bridge housing assembly. The circular motion is fixed by the spline fit. At the same time, the hub assembly needs to be axially locked, that is, the shaft head locking nut is screwed into the outer thread of the shaft head. In order to prevent the locking nut from loosening after being tightened and locked, a cross key is added between the lock groove of the ring gear bracket and the tooth groove of the locking nut.

[0003] When installing the cross key, the operator first needs to use a chisel to adjust the angle of the locking nut so that the keyway of the ring gear bracket and the keyway of the locking nut are aligned. Then, the operator holds the cross key in his hand and installs the cross key into the keyway by adjusting the installation angle of the cross key. Finally, use a hammer to knock the installed cross key.

[0004] When installing the cross key in the above manner, on the one hand, due to its small size, it is not easy to pick up and adjust the cross key, which causes difficulties in assembly. On the other hand, during the assembly process, there is a situation where the cross key is installed upside down due to operator error, and the cross key needs to be pulled out and readjusted and reinstalled, affecting assembly production efficiency. Utility Model Content

[0005] In order to solve the technical problems in the above-mentioned prior art that the cross key is difficult to assemble and the assembly efficiency is low, the utility model provides a cross key assembly tool, which can avoid manual assembly of the cross key by hand and has high assembly efficiency.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a cross key assembly tool, including a positioning cylinder and a push rod, the push rod is axially movably arranged in the positioning cylinder, the positioning end of the positioning cylinder is provided with a positioning block, the positioning block can be extended into the keyway to be installed, and a storage part is provided in the positioning cylinder near its positioning end, the storage part is used to store the cross key to be installed, and the push rod can be extended into the storage part.

[0007] The utility model realizes the storage and assembly positioning of the cross key by using a positioning cylinder, and realizes push-in installation by a push rod, which can avoid the technical problem that the cross key is easy to fall and difficult to control when taken by hand, reduces the assembly difficulty, and improves the assembly efficiency.

[0008] Furthermore, a guide groove is provided on the inner wall of the storage portion along its axial direction, and the key to be installed with the cross key can move along the guide groove.

[0009] The utility model can ensure that the cross key does not deflect during the transportation process by arranging the guide groove in the storage part, accurately matches with the key groove to be installed, ensures smooth installation and avoids collision.

[0010] Furthermore, a push plate is provided at the pushing end of the push rod, and the push plate is in the shape of a cross structure.

[0011] The utility model increases the contact area with the cross key by arranging the push plate, thereby avoiding the cross key from being skewed during the conveying process and further ensuring smooth installation.

[0012] Furthermore, a guide block is provided on the push plate, and the guide block can move along the corresponding guide groove.

[0013] The utility model prevents the thrust rod from rotating and causing movement jamming by arranging a guide block on the thrust plate.

[0014] Furthermore, a striking piece is provided at the force-applying end of the push rod, and the striking end of the striking piece is a cylindrical structure.

[0015] The utility model provides a knocking piece so that the cross key to be installed can be knocked after entering the key slot, thereby increasing the function of the tool and reducing the tools used in the cross key assembly process.

[0016] Furthermore, the knocking member also includes an adjustment end, and the adjustment end is a conical structure.

[0017] The utility model can adjust the locking nut by arranging the adjustment end, thereby ensuring the alignment of the key slots and further increasing the function of the tooling.

[0018] Furthermore, the positioning cylinder is provided with a plurality of positioning holes along its axial direction, wherein a locking bolt is provided in one of the positioning holes, and the end of the locking bolt can be connected to the push rod.

[0019] The utility model can fix the relative position of the push rod and the guide cylinder by arranging the locking bolt, thereby preventing the two from generating relative movement, and making it convenient for the operator to adjust the locking nut angle and tap the installed cross key.

[0020] Furthermore, a positioning groove is provided on the push rod along its axial direction, and a screw hole is provided in the positioning groove corresponding to the positioning hole, and the locking bolt can extend into the screw hole.

[0021] Furthermore, a positioning plane is provided on the outer circumferential surface of the positioning cylinder along its axial direction, and the positioning hole is provided on the positioning plane.

[0022] Furthermore, an anti-fall-off magnet is provided at the outlet of the storage portion.

[0023] The utility model can prevent the cross key to be installed from sliding out of the positioning cylinder by arranging the anti-slip magnet.

[0024] It can be seen from the above technical solutions that the present invention has the following advantages:

[0025] The utility model provides a cross key assembly tool, which realizes the storage and assembly positioning of the cross key by using a positioning cylinder, and pushes the key into the keyway for installation. It is easy to use, can avoid the technical problem that the cross key is easy to fall and difficult to control when taken by hand, reduces the difficulty of assembly, and improves the assembly efficiency; by arranging a guide groove in the storage part, it can be ensured that the cross key does not deflect during the transportation process, accurately matches with the keyway to be installed, ensures smooth installation and avoids collision; by arranging a push plate, the contact area with the cross key is increased, and the cross key is prevented from being skewed during the transportation process, further ensuring smooth installation; by arranging a knocking piece, the cross key to be installed can be knocked after entering the keyway, thereby increasing the function of the tool and reducing the tools in the cross key assembly process; by arranging a guide block on the push plate, the thrust rod is prevented from rotating and causing movement jamming; by arranging an adjustment end, the locking nut can be adjusted to ensure the keyway is aligned, further increasing the function of the tool; by arranging a locking bolt, the relative position of the push rod and the guide cylinder can be fixed to prevent the two from having relative movement, which is convenient for the operator to adjust the locking nut angle and knock the installed cross key. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the utility model Figure 1 .

[0028] Figure 2 This is a schematic diagram of the structure of a specific embodiment of the utility model Figure 2

[0029] Figure 3 The structure of the positioning tube in the specific embodiment of the utility model is shown as follows Figure 1 .

[0030] Figure 4 The structure of the positioning tube in the specific embodiment of the utility model is shown as follows Figure 2 .

[0031] Figure 5 It is a schematic diagram of the assembly structure of the push rod, the knocking member and the push plate in a specific embodiment of the present utility model.

[0032] Figure 6 It is a structural schematic diagram of the push plate in a specific embodiment of the present utility model.

[0033] Figure 7 This is a schematic diagram of the usage state of a specific embodiment of the utility model.

[0034] In the figure, 1. axle housing shaft head; 2. ring gear bracket; 3. locking nut; 4. cross key; 5. positioning cylinder; 6. push rod; 7. locking bolt; 8. anti-slip magnet; 9. positioning block; 10. knocking piece; 11. push plate; 12. guide block; 13. guide groove. DETAILED DESCRIPTION

[0035] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0036] like Figure 1 、 Figure 2 and Figure 3 As shown, this specific embodiment provides an assembly tool for a cross key 4, including a positioning cylinder 5 and a push rod 6. The push rod 6 is axially movably arranged in the positioning cylinder 5. The positioning end of the positioning cylinder 5 is provided with a positioning block 9. The positioning block 9 can be extended into the keyway to be installed. A storage part is provided in the positioning cylinder 5 near its positioning end. The storage part is used to store the cross key 4 to be installed, and the push rod 6 can be extended into the storage part.

[0037] This specific embodiment uses the positioning tube 5 to realize the storage and assembly positioning of the cross key 4, and pushes it into installation through the push rod 6, which can avoid the technical problem that the cross key 4 is easy to fall and difficult to control and adjust when held by hand, reduces the assembly difficulty, and improves the assembly efficiency.

[0038] like Figure 2 、 Figure 4 and Figure 6As shown, during the pushing process, in order to prevent the cross key 4 from deflecting and skewing, which affects the smooth assembly, in the present embodiment, a guide groove 13 is provided on the inner wall of the storage portion along its axial direction, and the key of the cross key 4 to be installed can move along the guide groove 13, and the guide groove 13 can prevent the cross key 4 from deflecting. At the same time, a push plate 11 is provided at the pushing end of the push rod 6, and the push plate 11 is shaped like a cross structure. The push plate 11 increases the contact area with the cross key 4 to be installed, and prevents the cross key 4 from skewing during the pushing process and affecting the assembly; in the present embodiment, there are four guide grooves, and the keys of the cross key 4 to be installed can move along the corresponding guide grooves 13 respectively; further, a guide block 12 is provided on the push plate 11, and the guide block 12 can move along the small groove at the bottom of the corresponding guide groove 13. By providing a guide block on the push plate 11, the thrust rod can be prevented from circumferential rotation, which causes movement jamming.

[0039] In the prior art, it is necessary to use a chisel to adjust the locking nut 3 to ensure that the keyway of the ring gear bracket 2 and the keyway of the locking nut 3 are aligned, and finally a hammer is used to hit the installed cross key 4 to ensure it is in place. The use of many tools causes management confusion. Figure 5 As shown, in this specific embodiment, the force-applying end of the push rod 6 is provided with a striking piece 10, and the striking end of the striking piece 10 is a cylindrical structure. The striking piece 10 also includes an adjustment end, and the adjustment end is a conical structure. By providing the striking piece 10, the tooling has the functions of a chisel and a hammer, reducing the investment and management of installation tools.

[0040] like Figures 1 to 3 As shown, in order to avoid relative movement between the push rod 6 and the positioning cylinder 5 when the knocking piece 10 is used for knocking, in this specific embodiment, a plurality of positioning holes are provided on the positioning cylinder 5 along its axial direction, and a locking bolt 7 is provided in one of the positioning holes. The end of the locking bolt 7 can be connected to the push rod 6, and a positioning groove is provided on the push rod 6 along its axial direction. Screw holes are provided in the positioning groove corresponding to the positioning holes, and the locking bolt 7 can be inserted into the screw hole. In order to facilitate the rotation of the locking bolt 7, a positioning plane is provided on the outer circumferential surface of the positioning cylinder 5 along its axial direction, and a positioning hole is provided on the positioning plane.

[0041] In order to prevent the cross key 4 to be installed from falling off, in this specific embodiment, an anti-falling magnet 8 is provided at the exit of the storage portion.

[0042] like Figure 7 As shown in the figure, the use process of this tool is as follows:

[0043] First, pull the push rod 6 backward and place a certain amount of cross keys 4 to be installed into the storage part. If necessary, use the adjustment end to adjust the locking nut 3 before installation. During installation, the positioning block 9 extends into the top of the keyway to be installed, and push the push rod 6 forward to make the cross key 4 enter the keyway. Rotate the locking bolt 7 to lock the push rod 6, and use the knocking end to knock the cross key 4 until it reaches the set position.

[0044] From the above specific embodiments, it can be seen that the present invention has the following beneficial effects:

[0045] 1. The cross key 4 is stored and positioned for assembly by using a positioning cylinder 5, and is pushed into place by a push rod 6. This makes it easy to use and avoids the technical problem of the cross key 4 being easily dropped and difficult to control when being taken by hand, thereby reducing assembly difficulty and improving assembly efficiency.

[0046] 2. By providing a guide groove in the storage part, the cross key 4 can be ensured not to deflect during the transportation process, and accurately match the key slot to be installed, ensuring smooth installation and avoiding collision;

[0047] 3. By providing the push plate 11, the contact area with the cross key 4 is increased to prevent the cross key 4 from being skewed during the conveying process, further ensuring smooth installation;

[0048] 4. The striking piece 10 is provided to strike the cross key 4 to be installed after it enters the key slot, thereby increasing the functionality of the tool and reducing the number of tools used in the assembly process of the cross key 4;

[0049] 5. By setting a guide block on the push plate 11, the thrust rod is prevented from rotating, causing movement jamming;

[0050] 6. By setting the adjustment end, the lock nut 3 can be adjusted to ensure the keyway is aligned, further increasing the function of the tool;

[0051] 7. By setting the locking bolt 7, the relative position of the push rod 6 and the guide cylinder can be fixed to prevent the two from moving relative to each other, making it convenient for the operator to adjust the angle of the locking nut 3 and tap the installed cross key 4.

[0052] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cross key assembly tool, characterized in that: The invention comprises a positioning cylinder (5) and a push rod (6), wherein the push rod (6) is axially movably arranged in the positioning cylinder (5), a positioning block (9) is provided at the positioning end of the positioning cylinder (5), and the positioning block (9) can extend into the key slot to be installed, and a storage portion is provided in the positioning cylinder (5) near its positioning end, and the storage portion is used to store the cross key to be installed, and the push rod (6) can extend into the storage portion.

2. The cross key assembly tool according to claim 1, characterized in that: A guide groove (13) is provided on the inner wall of the storage portion along its axial direction, and the key to be installed with the cross key can move along the guide groove (13).

3. The cross key assembly tool according to claim 2, characterized in that: A push plate (11) is provided at the pushing end of the push rod (6), and the push plate (11) is shaped like a cross.

4. The cross key assembly tool according to claim 3, characterized in that: A guide block (12) is provided on the push plate (11), and the guide block (12) is capable of moving along a corresponding guide groove (13).

5. The cross key assembly tool according to any one of claims 1 to 4, characterized in that: The force-applying end of the push rod (6) is provided with a knocking piece (10), and the knocking end of the knocking piece (10) is a cylindrical structure.

6. The cross key assembly tool according to claim 5, characterized in that: The striking member (10) further comprises an adjustment end, and the adjustment end is a conical structure.

7. The cross key assembly tool according to claim 5, characterized in that: The positioning cylinder (5) is provided with a plurality of positioning holes along its axial direction, wherein a locking bolt (7) is provided in one of the positioning holes, and the end of the locking bolt (7) can be connected to the push rod (6).

8. The cross key assembly tool according to claim 7, characterized in that: A positioning groove is provided on the push rod (6) along its axial direction, and a screw hole is provided in the positioning groove corresponding to the positioning hole, and the locking bolt (7) can extend into the screw hole.

9. The cross key assembly tool according to claim 7, characterized in that: A positioning plane is provided on the outer circumferential surface of the positioning cylinder (5) along its axial direction, and the positioning hole is provided on the positioning plane.

10. The cross key assembly tool according to claim 5, characterized in that: An anti-drop magnet (8) is provided at the outlet of the storage portion.

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