Gear and rack assembly structure for recirculating ball type steering gear

Abstract

The utility model belongs to the technical field of gear and rack assembly, and particularly relates to a gear and rack assembly structure for a recirculating ball type steering gear, which comprises a mounting seat and a support frame mounted on the mounting seat, a shaft rotating rod is mounted on the support frame in a threaded manner, and the periphery of the shaft rotating rod is rotatably connected with a mounting wheel through a bearing. A dismounting mechanism is connected between the mounting seat and the support frame; the dismounting and mounting mechanism comprises a limiting insertion hole formed in the inner side wall of the supporting frame and a fixing block fixedly connected to the surface of the upper end of the mounting base, and a sliding groove is formed in the surface of the upper end of the fixing block. By means of the design, the disassembly and assembly process is simplified, and operation convenience is improved. When parts need to be maintained or replaced, a user can easily detach the supporting frame from the installation base, the supporting frame is rapidly installed back after maintenance is completed, the maintenance time is greatly shortened, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear-rack assembly, in particular to a gear-rack assembly structure for a recirculating ball steering gear. Background Technique

[0002] The gear-rack assembly structure for a recirculating ball steering gear is a complex mechanical device, which combines the characteristics of a recirculating ball steering gear and the high efficiency of gear-rack transmission; in the existing design of recirculating ball steering gears, although certain functionality and stability have been achieved, there are still deficiencies in terms of disassembly and assembly convenience, maintenance efficiency, structural stability, and overall performance; specifically manifested as:

[0003] In traditional recirculating ball steering gears, the support frame and the mounting seat are mostly connected by fasteners such as bolts and nuts. This connection method requires a lot of time and effort for disassembly and assembly, not only is the operation cumbersome, but also it is easy to damage the fasteners or cause scratches on the components. In addition, frequent disassembly and assembly will increase the maintenance cost and reduce the work efficiency. Therefore, how to design a steering gear structure with convenient disassembly and assembly and high maintenance efficiency has become an urgent problem in the industry.

[0004] Traditional steering gears often have problems with insufficient stability in their structural design. Especially in harsh working environments, such as high temperature, high humidity, vibration and other conditions, the connections between components are likely to become loose, resulting in performance degradation or even failure. In addition, the fixing methods of some key components such as gear parts and mounting wheels may also have defects, such as insecure fixing and easy wear, which further limit the overall performance of the steering gear. Therefore, we provide a gear-rack assembly structure for a recirculating ball steering gear. Content of the Utility Model

[0005] In order to solve the above problems, the utility model proposes a gear-rack assembly structure for a recirculating ball steering gear, which more precisely solves the problems raised in the above background technique.

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

[0007] The utility model proposes a gear-rack assembly structure for a recirculating ball steering gear, including a mounting seat and a support frame mounted on the mounting seat. A shaft rotating rod is threadedly mounted on the support frame, and a mounting wheel is rotatably connected to the outer periphery of the shaft rotating rod through a bearing. A disassembly and assembly mechanism is connected between the mounting seat and the support frame;

[0008] The disassembly and assembly mechanism includes a limit jack formed on the inner side wall of the support frame and a fixed block fixedly connected to the upper surface of the mounting base. A sliding groove is formed on the upper surface of the fixed block, a transverse groove is formed on the inner side wall of the sliding groove, a sliding sleeve block is slidably connected to the inner wall of the transverse groove, a lapping plate is fixedly connected between the two sliding sleeve blocks, a limit insertion rod is fixedly connected to the surface of the lapping plate, and a reset component is connected between the transverse groove and the sliding sleeve block.

[0009] Further, the reset component includes a dividing block fixedly installed on the inner wall of the transverse groove. One end of the dividing block and the end wall of the transverse groove are fixedly connected by a connecting rod, a spring is sleeved on the outer periphery of the connecting rod, and the sliding sleeve block is slidably sleeved on the outer periphery of the connecting rod.

[0010] Further, a gear member is sleeved on the outer periphery of the mounting wheel. A nut body is fixedly connected to the inner wall of the mounting wheel. Through holes one and two are respectively formed through the outer peripheries of the mounting wheel and the gear member, and a torsion fixing screw is placed inside the through hole two.

[0011] Further, one end of the limit insertion rod penetrates through the end wall of the sliding groove and is inserted into the inner wall of the limit jack for limiting the support frame to separate from the mounting base, and the inner diameter of the limit jack is adapted to the outer diameter of the limit insertion rod in design.

[0012] Further, a vertical fixing column is fixedly connected to the upper surface of the mounting base. A socket hole is formed on the lower surface of the support frame, and the vertical fixing column is inserted into the inner wall of the socket hole to increase the installation stability of the mounting base and the support frame.

[0013] Further, the threaded section of the torsion fixing screw respectively passes through the through hole two and the through hole one and is threadedly connected to the inner wall of the nut body for fixing the mounting wheel and the gear member.

[0014] Further, one end of the spring is fixedly connected to one end surface of the dividing block, and the other end of the spring is fixedly connected to one end surface of the sliding sleeve block.

[0015] The beneficial effects of the present utility model:

[0016] Through the cooperation of the limit insertion rod and the limit jack, the present utility model realizes the rapid installation and disassembly between the support frame and the mounting base. This design not only simplifies the disassembly and assembly process but also improves the operation convenience. When maintenance or component replacement is required, the user can easily remove the support frame from the mounting base, and after the maintenance is completed, quickly install it back, greatly shortening the maintenance time and improving the maintenance efficiency.

[0017] Through the cooperation of the vertical fixing column and the socket hole, the present utility model increases the connection strength between the mounting seat and the support frame, making the entire steering gear more stable. Secondly, the fixed connection between the gear member and the mounting wheel, as well as the threaded connection design of the torsion fixing screw, ensure the tight fit between the components, reducing the possibility of loosening and wear. Finally, the design of the reset component enables the limit insertion rod to automatically reset after insertion or extraction, ensuring the reliability and accuracy of the disassembly and assembly mechanism. Description of the Drawings

[0018] Figure 1 Is a three-dimensional schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 Is a partial structural connection schematic diagram of the mounting seat and the fixing block of an embodiment of the present utility model;

[0020] Figure 3 Is a structural schematic diagram of the support frame of an embodiment of the present utility model;

[0021] Figure 4 Is a structural disassembly schematic diagram of the gear member and the mounting wheel of an embodiment of the present utility model.

[0022] In the figure: 1, mounting seat; 2, support frame; 3, shaft rotating rod; 4, mounting wheel; 5, limit socket; 6, fixing block; 7, sliding groove; 8, transverse groove; 9, dividing block; 10, connecting rod; 11, spring; 12, sliding sleeve block; 13, overlapping plate; 14, limit insertion rod; 15, vertical fixing column; 16, socket hole; 17, gear member; 18, nut body; 19, through hole one; 20, through hole two; 21, torsion fixing screw. Detailed Embodiment

[0023] In order to more clearly and completely illustrate the technical solution of the present utility model, the present utility model will be further described below with reference to the accompanying drawings. Embodiment

[0024] As Figures 1 - 4As shown in the figure, a gear-rack assembly structure for a recirculating ball steering gear proposed in an embodiment of the present utility model mainly includes a mounting base 1 and a support frame 2 mounted on the mounting base 1. A shaft rotating rod 3 is threadedly installed on the support frame 2, and the periphery of the shaft rotating rod 3 is rotatably connected to a mounting wheel 4 through a bearing, so that the mounting wheel 4 can freely rotate around the shaft rotating rod 3. In order to facilitate the installation and disassembly of the support frame 2, a disassembly and assembly mechanism is specially designed between the mounting base 1 and the support frame 2. The disassembly and assembly mechanism includes a limit jack 5 opened on the inner side wall of the support frame 2 and a fixed block 6 fixedly connected to the upper surface of the mounting base 1. A sliding groove 7 is opened on the fixed block 6, and a transverse groove 8 is further opened on the inner side wall of the sliding groove 7. In the transverse groove 8, two sliding sleeve blocks 12 are slidably connected through a reset member, and a lapping plate 13 is fixedly connected between them, and a limit insertion rod 14 is fixed on the lapping plate 13. When it is necessary to install the support frame 2, the limit insertion rod 14 is inserted into the limit jack 5 by operating the sliding sleeve block 12, so as to realize the stable connection between the support frame 2 and the mounting base 1; through the above disassembly and assembly mechanism, the support frame 2 can be conveniently and quickly installed and disassembled on the mounting base 1, improving the maintenance efficiency.

[0025] Further, a dividing block 9 is fixedly installed at the inner wall of the transverse groove 8, and a connecting rod 10 is fixedly connected between one end of the dividing block 9 and the end wall of the transverse groove 8. A spring 11 is sleeved on the periphery of the connecting rod 10, and the sliding sleeve block 12 is slidably sleeved on the periphery of the connecting rod 10. When the limit insertion rod 14 is inserted into or pulled out of the limit jack 5, the sliding sleeve block 12 will slide along the connecting rod 10, and at the same time compress or release the spring 11, providing a reset force for the limit insertion rod 14; the design of the reset member enables the limit insertion rod 14 to automatically reset after being inserted or pulled out, improving the convenience and accuracy of the operation.

[0026] Further, in order to enhance the functionality of the mounting wheel 4, a gear member 17 is sleeved on the periphery of the mounting wheel 4, and the two are fixedly connected by a torsion fixing screw 21. A nut body 18 is fixedly connected to the inner wall of the mounting wheel 4, and through holes 19 and 20 are respectively opened through the peripheries of the mounting wheel 4 and the gear member 17. After the threaded section of the torsion fixing screw 21 passes through the through hole 20 and the through hole 19, it is threadedly connected to the inner wall of the nut body 18, so as to realize the stable connection between the mounting wheel 4 and the gear member 17; the addition of the gear member 17 enables the mounting wheel 4 to cooperate with other gear components, expanding the application range and function of the steering gear.

[0027] Furthermore, one end of the limit insertion rod 14 penetrates through the end wall of the sliding groove 7 and is inserted into the inner wall of the limit insertion hole 5 to prevent the support frame 2 from accidentally detaching from the mounting base 1. To ensure the stability of the connection, the inner diameter of the limit insertion hole 5 is adapted to the outer diameter of the limit insertion rod 14, enabling them to fit tightly and not easily loosen; the tight fit between the limit insertion rod 14 and the limit insertion hole 5 ensures the stable connection between the support frame 2 and the mounting base 1, improving the overall stability of the steering gear.

[0028] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are proposed in this specification, so such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of this specification. At the same time, specific terms are used in this specification to describe the embodiments of this specification. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification is not necessarily the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. In addition, unless clearly stated in the claims, the order of the processing elements and sequences, the use of numerical letters, or the use of other names in this specification are not used to limit the order of the processes and methods in this specification.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gear-rack assembly structure for a recirculating ball steering gear, comprising a mounting seat (1) and a support frame (2) mounted on the mounting seat (1), characterized in that, A shaft rotating rod (3) is threadedly installed on the support frame (2). An installation wheel (4) is rotatably connected to the outer periphery of the shaft rotating rod (3) through a bearing. A disassembly and assembly mechanism is connected between the installation seat (1) and the support frame (2). The disassembly and assembly mechanism includes a limit jack (5) opened on the inner side wall of the support frame (2) and a fixed block (6) fixedly connected to the upper surface of the installation seat (1). A sliding groove (7) is opened on the upper surface of the fixed block (6). A transverse groove (8) is opened on the inner side wall of the sliding groove (7). A sliding sleeve block (12) is slidably connected to the inner wall of the transverse groove (8). A lapping plate (13) is fixedly connected between the two sliding sleeve blocks (12). A limit insertion rod (14) is fixedly connected to the surface of the lapping plate (13). A reset component is connected between the transverse groove (8) and the sliding sleeve block (12).

2. The rack and pinion assembly structure for a recirculating ball steering gear according to claim 1, characterized in that, The reset component includes a partition block (9) fixedly installed on the inner wall of the transverse groove (8). A connecting rod (10) is fixedly connected between one end of the partition block (9) and the end wall of the transverse groove (8). A spring (11) is sleeved on the outer periphery of the connecting rod (10). The sliding sleeve block (12) is slidably sleeved on the outer periphery of the connecting rod (10).

3. A gear-rack assembly structure for a recirculating ball steering gear according to claim 1, characterized in that, A gear member (17) is sleeved on the outer periphery of the installation wheel (4). A nut body (18) is fixedly connected to the inner wall of the installation wheel (4). A through hole one (19) and a through hole two (20) are respectively and penetratingly opened on the outer peripheries of the installation wheel (4) and the gear member (17). A torsion fixing screw (21) is placed inside the through hole two (20).

4. A gear-rack assembly structure for a recirculating ball steering gear according to claim 1, characterized in that, One end of the limit insertion rod (14) penetrates through the end wall of the sliding groove (7) and is inserted into the inner wall of the limit jack (5) to limit the separation of the support frame (2) from the installation seat (1). The inner diameter of the limit jack (5) is designed to be adapted to the outer diameter of the limit insertion rod (14).

5. A rack and pinion assembly structure for a recirculating ball steering gear according to claim 1, characterized in that A vertical fixing column (15) is fixedly connected to the upper surface of the installation seat (1). A socket hole (16) is opened on the lower surface of the support frame (2). The vertical fixing column (15) is inserted into the inner wall of the socket hole (16) to increase the installation stability of the installation seat (1) and the support frame (2).

6. A rack and pinion assembly structure for a recirculating ball steering gear according to claim 3, characterized in that, The threaded section of the torsion fixing screw (21) respectively passes through the through hole two (20) and the through hole one (19) and is threadedly connected to the inner wall of the nut body (18) to fix the installation wheel (4) and the gear member (17).

7. A gear-rack assembly structure for a recirculating ball steering gear according to claim 2, wherein, One end of the spring (11) is fixedly connected to one end surface of the partition block (9). The other end of the spring (11) is fixedly connected to one end surface of the sliding sleeve block (12).

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