Positioning device for suspension structural member of engineering machinery frame

Abstract

The utility model relates to the field of engineering machinery, in particular to a positioning device for a suspension structural member of an engineering machinery frame. The positioning device comprises a base; the first adjusting structure comprises a threaded rod rotatably mounted on the base and a first mounting block matched with the threaded rod; the second adjusting structure comprises a second mounting block arranged side by side with the first mounting block, a rack mounted on the first mounting block, and a driving gear mounted on the second mounting block and meshed with the rack; a mounting plate is fixed to the top of the second mounting block and extends to the position above the first mounting block. And a limiting structure is arranged between the first mounting block and the second mounting block. According to the positioning device for the suspension structural member of the engineering machinery frame, the first adjusting structure and the second adjusting structure are arranged side by side and jointly support the mounting plate, so that the mounting plate and the suspension structural member can be stably supported, and the stability of the frame during assembly is ensured.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery, specifically to a positioning device for a suspension structure component of an engineering machinery frame. Background Technology

[0002] Construction machinery typically has suspension components on its chassis. The positioning mechanism for these suspension components includes a front positioning frame and a rear positioning frame, used for load-bearing positioning of the suspension components. For crane chassis of different tonnages and structures, the relative positions of the front and rear positioning frames need to be adjusted.

[0003] Chinese utility model patent CN211278094U discloses a positioning device for a suspension structure component of an engineering machinery frame. This positioning device includes a mounting plate, a first adjustment structure mounted on the mounting plate, and a second adjustment structure mounted on the first adjustment structure. The first adjustment structure quickly adjusts the mounting frame to its approximate position, and then the second adjustment structure further refines the position of the mounting frame. However, this positioning device relies on the second adjustment structure to support and fix the mounting plate. The second adjustment structure is relatively small, making it difficult to provide stable support for the mounting plate and the suspension components on it during welding of the frame and suspension structure.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] To improve or solve the technical problem that the second adjustment structure in the prior art is unable to provide stable support for the mounting plate and suspension structure, this utility model provides a positioning device for the suspension structure of an engineering machinery frame. The positioning device includes: a base; a first adjustment structure including a threaded rod rotatably mounted on the base and a first mounting block mating with the threaded rod; a second adjustment structure including a second mounting block arranged side-by-side with the first mounting block, a rack mounted on the first mounting block, and a drive gear mounted on the second mounting block and meshing with the rack; a mounting plate is fixed to the top of the second mounting block, and the mounting plate extends above the first mounting block; a limit structure is provided between the first mounting block and the second mounting block.

[0006] This utility model relates to a positioning device for the suspension structure of an engineering machinery frame, comprising a base, a first adjustment structure, a second adjustment structure, and a mounting plate. The first adjustment structure includes a threaded rod and a first mounting block. Rotation of the threaded rod causes the first mounting block to slide, thereby adjusting the position of the mounting plate. The second adjustment structure includes a second mounting block, a rack, and a drive gear. The second mounting block is arranged side-by-side with the first mounting block, and the mounting plate extends from the top of the second mounting block to above the first mounting block, ensuring the stability of the mounting plate. The rack is mounted on the first mounting block, and the drive gear is mounted on the second mounting block. Rotation of the drive gear moves along the rack direction, causing the second mounting block to slide relative to the first mounting block, precisely adjusting the position of the mounting plate. A limit structure is provided between the first and second mounting blocks to limit the sliding direction of the second mounting block and prevent it from detaching from the first mounting block. Through these features, the positioning device for the suspension structure of the engineering machinery frame of this utility model arranges the first and second adjustment structures side-by-side, both supporting the mounting plate and providing stable support for the mounting plate and suspension structure, ensuring stability during frame assembly.

[0007] Furthermore, the drive gear is connected to a drive shaft, and a turbine is fixed on the drive shaft; the turbine is connected to a worm extending along the length direction of the rack.

[0008] Furthermore, a first end plate and a second end plate are arranged opposite to each other at the bottom of the second mounting block, and the worm gear is rotatably connected to the first end plate and the second end plate.

[0009] Furthermore, the limiting structure includes a limiting block that is fixedly connected to the second mounting block, and a limiting groove formed on the first mounting block and matching the limiting block.

[0010] Furthermore, baffles are arranged at both ends of the limiting groove.

[0011] Furthermore, a protrusion is provided on the side of the mounting plate facing the first mounting block, and a groove matching the protrusion is provided on the first mounting block.

[0012] Furthermore, the rack is detachably mounted on the first mounting block.

[0013] In summary, compared with the prior art, this utility model has the following beneficial effects:

[0014] The first adjustment structure includes a threaded rod and a first mounting block. The rotation of the threaded rod causes the first mounting block to slide, thereby adjusting the position of the mounting plate. The second adjustment structure includes a second mounting block, a rack, and a drive gear. The second mounting block is arranged side by side with the first mounting block, and the mounting plate extends from the top of the second mounting block to above the first mounting block, ensuring the support stability of the mounting plate. The rack is mounted on the first mounting block, and the drive gear is mounted on the second mounting block. The rotation of the drive gear moves along the rack direction, thereby causing the second mounting block to slide relative to the first mounting block, thus precisely adjusting the position of the mounting plate. Attached Figure Description

[0015] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of an embodiment of the positioning device for the suspension structure of engineering machinery vehicle frame of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the first and second adjustment structures in the positioning device of the suspension structure component of the engineering machinery frame of this utility model.

[0018] List of reference numerals in the attached drawings: 1. Base; 2. First adjustment structure; 21. Threaded rod; 22. First mounting block; 23. Guide post; 24. Baffle; 3. Second adjustment structure; 31. Second mounting block; 32. Rack; 33. Drive gear; 34. Limiting block; 35. Drive shaft; 36. Turbine; 37. Worm gear; 38. First end plate; 39. Second end plate; 4. Mounting plate; 41. Protrusion. Detailed Implementation

[0019] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] To improve or solve the technical problem that the second adjustment structure in the prior art is difficult to stably support the mounting plate and suspension structure, this utility model provides a positioning device for the suspension structure of an engineering machinery frame. The positioning device includes: a base 1; a first adjustment structure 2, including a threaded rod 21 rotatably mounted on the base 1 and a first mounting block 22 mating with the threaded rod 21; a second adjustment structure 3, including a second mounting block 31 arranged side-by-side with the first mounting block 22, a rack 32 mounted on the first mounting block 22, and a drive gear 33 mounted on the second mounting block 31 and meshing with the rack 32; a mounting plate 4 is fixed to the top of the second mounting block 31, and the mounting plate 4 extends above the first mounting block 22; a limit structure is provided between the first mounting block 22 and the second mounting block 31.

[0023] Figure 1 This is a schematic diagram of an embodiment of the positioning device for the suspension structure of engineering machinery of this utility model. Figure 1 As shown, in one or more embodiments, the positioning device for the suspension structure of the engineering machinery frame of this utility model includes a base 1, a first adjustment structure 2, a second adjustment structure 3, and a mounting plate 4.

[0024] See also Figure 1 In one or more embodiments, the first adjustment structure 2 is provided in two sets. Each set of the first adjustment structure 2 includes a threaded rod 21 rotatably mounted on the base 1 and a first mounting block 22 that mates with the threaded rod 21. Specifically, a support plate is provided on the base 1, and three support plates are provided, respectively near the left and right ends and the middle position of the base 1. One end of the threaded rod 21 is rotatably arranged on the middle support plate, and the other end passes through the end support plate. The first mounting block 22 is generally rectangular and has a threaded hole that mates with the threaded rod 21. By rotating the threaded rod 21, the first mounting block 22 is driven to slide in the left and right direction along the base 1, thereby coarsely adjusting the position of the second adjustment structure 3 and the mounting plate 4. Further, a guide post 23 is provided between the support plates, and a guide hole that mates with the guide post 23 is provided on the first mounting block 22 to limit the sliding direction of the mounting plate 4.

[0025] Figure 2This is a cross-sectional schematic diagram of the first and second adjusting structures in the positioning device of the suspension structure component of the engineering machinery frame of this utility model. Figure 1 and Figure 2 As shown, the mounting plate 4 is fixed to the second adjusting structure 3 and extends toward the first adjusting structure 2. Exemplarily, the mounting plate 4 and the second adjusting structure 3 are fixedly connected by bolts. Further, a protrusion 41 is provided on the side of the mounting plate 4 facing the first mounting block 22, and a groove matching the protrusion 41 is formed on the first mounting block 22. Specifically, the groove extends along the length direction of the threaded rod 21. The protrusion 41 is slidably arranged within the groove. Further, the second adjusting structure 3 is arranged on one side of the first adjusting structure 2. The second adjusting structure 3 includes a second mounting block 31 that forms a sliding engagement connection with the first mounting block 22, a rack 32 mounted on the first mounting block 22, and a drive gear 33 rotatably mounted on the second mounting block 31. The drive gear 33 rotates, causing the second mounting block 31 to slide along the length direction of the rack 32, thereby finely adjusting the position of the mounting plate 4. The second mounting block 31 is generally cuboid in shape and is arranged on one side of the first mounting block 22. In one or more embodiments, a limiting structure is provided between the first mounting block 22 and the second mounting block 31. The limiting structure includes a limiting block 34 fixedly connected to the second mounting block 31 and a limiting groove formed on the first mounting block 22. Specifically, two limiting blocks 34 are provided, one near the top and one near the bottom of the second mounting block 31. The limiting blocks 34 extend into the limiting groove, defining the sliding direction of the second limiting block 34. Furthermore, baffles 24 are provided at both ends of the limiting groove, closing the limiting groove and preventing the limiting blocks 34 from disengaging from the limiting groove.

[0026] See also Figure 1 and Figure 2In one or more embodiments, the rack 32 is detachably mounted on the first mounting block 22. Specifically, a mounting groove is provided on the side of the first mounting block 22 facing the second mounting block 31, and the rack 32 is arranged in the mounting groove and detachably fixedly connected to the first mounting block 22 by bolts. The rack 32 extends along the length direction of the threaded rod 21. Further, the drive gear 33 is rotatably arranged on the second mounting block 31. Specifically, a mounting groove is provided in the middle position of the second mounting block 31 for mounting the drive gear 33. A bearing is provided between the drive gear 33 and the second mounting block 31 to limit the drive gear 33 and prevent it from wobbling up and down. Further, the drive gear 33 is connected to a drive shaft 35, and the drive shaft 35 is rotatably connected to the second mounting block 31. Specifically, the drive shaft 35 and the drive gear 33 rotate synchronously through a keyway structure. A countersunk hole is provided on the second mounting block 31 to match the drive shaft 35, and the drive shaft 35 is rotatably limited within the countersunk hole. Furthermore, a turbine 36 is fixed on the drive shaft 35, and the turbine 36 is connected to a worm gear 37. Rotation of the worm gear 37 drives the turbine 36 and the drive shaft 35 to rotate, which in turn drives the drive gear 33 to rotate. Specifically, the turbine 36 and the drive shaft 35 rotate synchronously via a keyway structure. A first end plate 38 and a second end plate 39 are provided at the bottom of the second mounting block 31. One end of the worm gear 37 is rotatably mounted on the first end plate 38, and the other end passes through the second end plate 39 to allow rotation via a tool.

[0027] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A positioning device for a suspension structure component of an engineering machinery vehicle, characterized in that, include: Base (1); The first adjustment structure (2) includes a threaded rod (21) rotatably mounted on the base (1) and a first mounting block (22) that mates with the threaded rod (21); The second adjustment structure (3) includes a second mounting block (31) arranged side by side with the first mounting block (22), a rack (32) mounted on the first mounting block (22), and a drive gear (33) mounted on the second mounting block (31) and meshing with the rack (32); a mounting plate (4) is fixed on the top of the second mounting block (31), and the mounting plate (4) extends above the first mounting block (22); a limit structure is provided between the first mounting block (22) and the second mounting block (31).

2. The positioning device for the suspension structure of engineering machinery frame according to claim 1, characterized in that, The drive gear (33) is connected to a drive shaft (35), and a turbine (36) is fixed on the drive shaft (35); the turbine (36) is connected to a worm (37) extending along the length direction of the rack (32).

3. The positioning device for the suspension structure of engineering machinery frame according to claim 2, characterized in that, A first end plate (38) and a second end plate (39) are arranged opposite to each other at the bottom of the second mounting block (31), and the worm (37) is rotatably connected to the first end plate (38) and the second end plate (39).

4. The positioning device for the suspension structure of engineering machinery frame according to claim 1, characterized in that, The limiting structure includes a limiting block (34) that is fixedly connected to the second mounting block (31), and a limiting groove that is formed on the first mounting block (22) and matches the limiting block (34).

5. The positioning device for the suspension structure of engineering machinery frame according to claim 4, characterized in that, Baffles (24) are arranged at both ends of the limiting groove.

6. The positioning device for the suspension structure of engineering machinery frame according to claim 4, characterized in that, A protrusion (41) is provided on the side of the mounting plate (4) facing the first mounting block (22), and a groove matching the protrusion (41) is provided on the first mounting block (22).

7. The positioning device for the suspension structure of engineering machinery frame according to claim 1, characterized in that, The rack (32) is detachably mounted on the first mounting block (22).

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