An assembly process for a jack roller axle tube and wheel carrier

Abstract

The application discloses a kind of assembly processes of jack support roller axle pipe and wheel frame, specifically comprising the following steps: S1, wheel frame and hexagon nut are fixedly connected;S2, hollow axle pipe is placed on fixed plate, two lower hexagonal molds are provided on the fixed plate, the two ends of the axle pipe are correspondingly located on the lower hexagonal mold, an upper hexagonal mold that can move up and down is provided above the lower hexagonal mold, and the caliber of the two ends of the axle pipe is greater than the caliber of the hexagon nut;S3, the hexagon nut fixed with the wheel frame is aligned with the two ends of the axle pipe respectively, and then the hexagon nut is pushed into the inside of the end of the axle pipe;S4, the upper hexagonal mold is moved downward, and the end of the axle pipe is stamped into a limiting hexagonal port, which is tightly attached to the hexagon nut, and the assembly efficiency of the jack is improved.

Description

Technical Field

[0001] This invention relates to the field of jack assembly technology, and more specifically, to an assembly process for a jack idler roller shaft tube and wheel frame. Background Technology

[0002] The connection point between the idler roller shaft tube and the wheel frame is at the bottom of the jack's traveling end. Currently, the common assembly methods for the two are as follows: 1. Tap both ends of the idler roller shaft tube and thread the wheel frame to the ends of the idler roller shaft tube; 2. Weld a nut to both ends of the idler roller shaft tube and then thread the nut to the wheel frame. Both of these installation methods require tapping or welding the idler roller shaft tube in advance, and these two processes are relatively inefficient in workshop production, directly affecting the assembly efficiency of the jack. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide an assembly process for a jack roller shaft tube and a wheel frame.

[0004] To achieve the above objectives, the innovative aspects of this invention are as follows: Specifically, it includes the following steps:

[0005] S1. Securely connect the wheel frame and the hexagonal nut;

[0006] S2. Place the hollow shaft tube flat on the fixing plate. The fixing plate is equipped with two lower hexagonal molds. The two ends of the shaft tube are respectively located on the lower hexagonal molds. Above the lower hexagonal molds is an upper hexagonal mold that can move up and down. The diameter of the two ends of the shaft tube is larger than the diameter of the hexagonal nut.

[0007] S3. Align the hexagonal nuts that are fixed to the wheel frame with the two ends of the shaft tube, and then push the hexagonal nuts into the inside of the ends of the shaft tube.

[0008] S4. Move the upper hexagonal mold downwards, and the end of the shaft tube is stamped into a limiting hexagonal opening, which is tightly attached to the hexagonal nut.

[0009] Furthermore, a positioning line is marked at the center of the aforementioned shaft tube, a support seat is provided on the fixing plate, the support seat has a lower arc-shaped groove and a detachable upper arc-shaped groove, the positioning line is clamped and fixed between the upper and lower arc-shaped grooves, base plates extend outward from both ends of the fixing plate, a slidable fixing seat is provided on the base plate, a wheel frame fixing component is provided on the fixing seat, the sliding direction of the fixing seat is closer to or farther from the lower hexagonal mold, and a driving component is provided on the base plate to push the fixing seat to move a fixed distance, so that the position of the hexagonal nut entering the end of the shaft tube remains consistent.

[0010] Furthermore, the two ends of the upper arc groove are provided with connecting plates, the connecting plates are provided with fastening bolts, and the support base is provided with fixing holes. The fastening bolts and fixing holes are threadedly connected so that the positioning line is clamped and fixed between the upper arc groove and the lower arc groove.

[0011] Furthermore, the inner walls of both the upper and lower arc-shaped grooves are lined with rubber pads.

[0012] Furthermore, the aforementioned fastener includes a fixing groove and a pressure plate provided on the fixing seat. When the wheel frame is locked inside the fixing groove, the hexagonal nut extends to the outside of the fixing seat, and the pressure plate presses down on the wheel frame, so that the wheel frame is fixed inside the fixing groove.

[0013] Furthermore, the aforementioned driving component includes a rotary motor and an adjusting lead screw. The rotary motor is fixed on the base plate, and a lead screw nut is provided between the rotary motor and the fixed seat. A fixing nut is provided on the fixed seat, and the fixing nut and the lead screw nut are aligned. The adjusting lead screw is connected to the output end of the rotary motor and is sequentially connected to the lead screw nut and the fixing nut.

[0014] The technical effects and advantages of this invention are as follows: This invention does not require pre-treatment of the shaft tube. The hexagonal nut and wheel frame are connected sequentially, the hexagonal nut and bearing are connected, and the limiting hexagonal opening is directly stamped by the upper and lower hexagonal molds to limit the connection of the hexagonal nut inside the shaft tube. The entire connection process does not require welding or tapping, which improves the assembly efficiency of the jack. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the connection between the shaft tube and the wheel frame of the present invention.

[0016] Figure 2 This is a side view of the shaft tube of the present invention between the fixing plate and the substrate.

[0017] Figure 3 This is a front view of the shaft tube of the present invention between the upper hexagonal mold and the lower hexagonal mold.

[0018] Figure 4 This is a front view of the structure of the shaft tube clamped between the upper and lower arc-shaped grooves of the present invention. Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 4One specific embodiment of the present invention includes the following steps:

[0021] S1. Securely connect the wheel frame 1 and the hexagonal nut 11;

[0022] S2. Place the hollow shaft tube 12 flat on the fixing plate 13. The fixing plate 13 is provided with two lower hexagonal molds 14. The two ends of the shaft tube 12 are respectively located on the lower hexagonal molds 14. The upper hexagonal mold 15 that can move up and down is provided directly above the lower hexagonal molds 14. The diameter of the two ends of the shaft tube 12 is larger than the diameter of the hexagonal nut 11.

[0023] S3. Align the hexagonal nuts 11 that are fixed to the wheel frame 1 with the two ends of the shaft tube 12 respectively, and then push the hexagonal nuts 11 into the inside of the ends of the shaft tube 12 accordingly;

[0024] S4. Move the upper hexagonal mold 15 downwards, and the end of the shaft tube 12 is stamped into a limiting hexagonal opening 16, which is tightly attached to the hexagonal nut 11.

[0025] In this invention, there is no need to pre-process the shaft tube 12. The hexagonal nut 11 is connected to the wheel frame 1, the hexagonal nut 11 is connected to the bearing, and the limiting hexagonal opening 16 is directly stamped by the upper hexagonal mold 15 and the lower hexagonal mold 14 to limit the connection of the hexagonal nut 11 to the inside of the shaft tube 12. The entire connection process does not require welding or tapping, which improves the assembly efficiency of the jack.

[0026] In this invention, as a preferred embodiment, a positioning line 17 is marked on the center position of the shaft tube 12, a support seat 2 is provided on the fixing plate 13, the support seat 2 is provided with a lower arc groove 21, and the support seat 2 is provided with a detachable upper arc groove 22. The positioning line 17 is clamped and fixed between the upper arc groove 22 and the lower arc groove 21. The two ends of the fixing plate 13 respectively extend outward with a base plate 23, and a slidable fixing seat 24 is provided on the base plate 23. The fixing seat 24 is provided with a fixing member 3 of the wheel frame 1. The sliding direction of the fixing seat 24 is close to or away from the lower hexagonal mold 14. The base plate 23 is provided with a driving member 4 that pushes the fixing seat 24 to move a fixed distance, so that the position of the hexagonal nut 11 entering the end of the shaft tube 12 remains consistent.

[0027] In this invention, the positioning line 17 can position the shaft tube 12 on the support base 2, thereby ensuring that the fixed position of the shaft tube 12 on the support base 2 remains consistent each time. The shaft tube 12 is fixed by clamping it between the upper arc groove 22 and the lower arc groove 21. Then, the wheel frame 1 is fixed on the fixed base 24 by the fixing member 3. The driving member 4 pushes the fixed base 24 to move the lower hexagonal mold 14 a fixed distance on the base plate 23, so that the position of the hexagonal nut 11 entering the end of the shaft tube 12 remains consistent, thereby ensuring that the fixed position of the hexagonal nut 11 at the end of each shaft tube 12 remains consistent.

[0028] In this invention, as a preferred embodiment, the two ends of the upper arc groove 22 are provided with connecting plates 5, the connecting plates 5 are provided with fastening bolts 51, the support base 2 is provided with fixing holes 52, and the fastening bolts 51 and fixing holes 52 are threadedly connected so that the positioning line 17 is clamped and fixed between the upper arc groove 22 and the lower arc groove 21.

[0029] In this invention, the upper arc groove 22 and the lower arc groove 21 are fixed together by threading fastening bolts 51 and fixing holes 52, thereby fixing the connecting plate 5 on the support base 2.

[0030] In this invention, as a preferred embodiment, the inner walls of both the upper arc-shaped groove 22 and the lower arc-shaped groove 21 are covered with rubber pads.

[0031] In this invention, the rubber pad increases the friction between the upper arc groove 22 and the lower arc groove 21 of the shaft tube 12, thereby improving the firmness of the shaft tube 12.

[0032] In this invention, as a preferred embodiment, the aforementioned fixing member 3 includes a fixing groove 31 and a pressure plate 32 disposed on the fixing seat 24. When the wheel frame 1 is locked inside the fixing groove 31, the hexagonal nut 11 extends to the outside of the fixing seat 24, and the pressure plate 32 presses down on the wheel frame 1, so that the wheel frame 1 is fixed inside the fixing groove 31.

[0033] In this invention, the fixing groove 31 plays a corrective role in fixing the wheel frame 1, so that the hexagonal nut 11 can extend to the outside of the fixing seat 24, making it convenient to insert the hexagonal nut 11 into the end of the shaft tube 12, and then the wheel frame 1 is fixed by pressing down by the pressure plate 32.

[0034] In this invention, as a preferred embodiment, the driving component 4 includes a rotary motor 41 and an adjusting screw 42. The rotary motor 41 is fixed on the base plate 23. A screw nut 6 is provided between the rotary motor 41 and the fixed seat 24. A fixing nut 61 is provided on the fixed seat 24. The fixing nut 61 and the screw nut 6 are aligned. The adjusting screw 42 is connected to the output end of the rotary motor 41 and is sequentially connected to the screw nut 6 and the fixing nut 61.

[0035] In this invention, the movement of the fixed seat 24 is powered by a rotary motor 41, which drives the adjusting screw 42 to rotate. Under the action of the screw nut 6, the fixed seat 24 moves on the base plate 23. The adjusting screw 42 can accurately adjust the moving distance of the fixed seat 24, thereby ensuring that the moving distance of the fixed seat 24 remains consistent each time.

[0036] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0037] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0038] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An assembly process for a jack roller shaft tube and wheel frame, characterized in that: Specifically, the following steps are included: S1. Securely connect the wheel frame (1) and the hexagonal nut (11); S2. Place the hollow shaft tube (12) flat on the fixing plate (13). The fixing plate (13) is provided with two lower hexagonal molds (14). The two ends of the shaft tube (12) are respectively located on the lower hexagonal molds (14). The upper hexagonal mold (15) that can move up and down is provided directly above the lower hexagonal molds (14). The diameter of the two ends of the shaft tube (12) is larger than the diameter of the hexagonal nut (11). S3. Align the hexagonal nuts (11) that are fixed to the wheel frame (1) with the two ends of the shaft tube (12), and then push the hexagonal nuts (11) into the inside of the ends of the shaft tube (12); S4. Move the upper hexagonal mold (15) downwards, and the end of the shaft tube (12) is stamped into a limiting hexagonal opening (16), which is in close contact with the hexagonal nut (11). A positioning line (17) is marked on the center of the shaft tube (12). A support seat (2) is provided on the fixing plate (13). A lower arc groove (21) is provided on the support seat (2). A detachable upper arc groove (22) is provided on the support seat (2). The positioning line (17) is clamped and fixed between the upper arc groove (22) and the lower arc groove (21). A base plate (23) extends outward from both ends of the fixing plate (13). A slidable fixing seat (24) is provided on the base plate (23). A fixing member (3) of the wheel frame (1) is provided on the fixing seat (24). The sliding direction of the fixing seat (24) is close to or away from the lower hexagonal mold (14). A driving member (4) is provided on the base plate (23) to push the fixing seat (24) to move a fixed distance, so that the position of the hexagonal nut (11) entering the end of the shaft tube (12) remains consistent. The upper arc groove (22) is provided with connecting plates (5) at both ends, and fastening bolts (51) are provided on the connecting plates (5). The support base (2) is provided with fixing holes (52). The fastening bolts (51) and the fixing holes (52) are threaded together so that the positioning line (17) is clamped and fixed between the upper arc groove (22) and the lower arc groove (21). The inner walls of the upper arc groove (22) and the lower arc groove (21) are both covered with rubber pads; The fastener (3) includes a fixing groove (31) and a pressure plate (32) provided on the fixing seat (24). When the wheel frame (1) is locked inside the fixing groove (31), the hexagonal nut (11) extends to the outside of the fixing seat (24), and the pressure plate (32) presses down on the wheel frame (1), so that the wheel frame (1) is fixed inside the fixing groove (31). The driving component (4) includes a rotary motor (41) and an adjusting screw (42). The rotary motor (41) is fixed on the base plate (23). A screw nut (6) is provided between the rotary motor (41) and the fixed seat (24). A fixing nut (61) is provided on the fixed seat (24). The fixing nut (61) and the screw nut (6) are aligned. The adjusting screw (42) is connected to the output end of the rotary motor (41) and is sequentially connected to the screw nut (6) and the fixing nut (61).

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