Ratchet wrench type driving mechanism

Abstract

The utility model relates to a ratchet wrench type driving mechanism, which comprises a plurality of groups of moving wheel train units, and each group of moving wheel train unit consists of two moving wheels; the movement wheel train units are installed below skewbacks on the two sides of the large-span space structure and used for driving the large-span space structure. A driving shaft of the moving wheel is sleeved with one end of a connecting sleeve, and the other end of the connecting sleeve is sleeved with a ratchet wrench; the moving wheel is driven by rotating the ratchet wrench, and then the large-span space structure is driven. The utility model provides an innovative manpower-driven solution, is suitable for a movable machine shed with a large-span structure, has the advantages of simplicity and convenience in operation, high moving efficiency, high adaptability and the like, and has a wide application prospect.

Description

Technical Field

[0001] The utility model belongs to the technical field of the overall movement drive of large-span structures, and particularly relates to a ratchet wrench type drive mechanism. Background Technique

[0002] Large-span structures, such as grid structures and truss structures, are usually used in buildings that require large spaces, such as gymnasiums, exhibition halls, and factory workshops. These structures are favored for their large coverage range and low self-weight. However, traditional large-span structures usually require fixed foundations to ensure stability and bearing capacity, which limits their mobility, especially in sites that require temporary or variable uses. Therefore, most large-span structures do not have mobility, and they are usually fixed in a specific position after construction, lacking flexibility.

[0003] Although there are some large-span structures that can be moved, their moving methods are usually limited, mainly including the following: 1) Tractive movement: Moving the structure through external traction equipment such as tractors or cranes; 2) Slide rail system: Slide rails are installed at the bottom of the structure, and the structure is pushed along the rails by manpower or mechanical force; 3) Hydraulic lifting system: Using a hydraulic system to lift and move the structure, which is suitable for applications that require vertical movement; 4) Modular design: By designing modular components, the disassembly and reassembly of the structure are realized, but this usually requires complex assembly and disassembly processes. These moving methods have their own advantages and disadvantages. For example, tractive movement may require a large traction force and space, while the slide rail system and the hydraulic lifting system may require specific rail and hydraulic system support.

[0004] In view of the above problems, the Chinese patent application "A large-span bow structure fixed by counterweights" proposed an innovative solution. This structure is fixed by counterweights, does not require a traditional foundation, and has certain mobility at the same time. However, the movement of this structure usually depends on external traction or manual pushing and pulling, and it is difficult to move or the movement is not flexible and efficient enough in the absence of traction equipment or insufficient personnel. To overcome these limitations, the present invention proposes a ratchet wrench type drive mechanism, aiming to provide a drive method that does not rely on external traction equipment and can achieve efficient and flexible movement through manpower. Content of the Utility Model

[0005] In view of the above problems, the utility model provides a ratchet wrench type drive mechanism, which realizes the manual drive of the shed through the ratchet wrench mechanism, and solves the problem of moving the shed in the absence of a tractor and insufficient personnel.

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] The present utility model provides a ratchet wrench type driving mechanism, comprising: a plurality of sets of kinematic gear train units, each set of kinematic gear train units consisting of two kinematic gears; the kinematic gear train units are installed under the two side arch seats of a long-span space structure for driving the long-span space structure; one end of a connecting sleeve is sleeved on the driving shaft of the kinematic gear, and the other end of the connecting sleeve is sleeved with a ratchet wrench; the ratchet wrench is rotated to drive the kinematic gear, and further drive the long-span space structure.

[0008] Further, an extension sleeve is sleeved on the end of the ratchet wrench.

[0009] As can be seen from the above technical solutions, an innovative manual driving solution provided by the present utility model has the following beneficial effects:

[0010] The present utility model provides an innovative manual driving solution, which is applicable to the mobile shed of a long-span structure, and has the advantages of simple operation, high moving efficiency, strong adaptability, etc., and has a wide application prospect. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the connection between the ratchet wrench type driving mechanism provided by the present utility model and the shed;

[0012] Figure 2 It is a schematic structural diagram of the ratchet wrench type driving mechanism provided by the present utility model installed under the arch seat of a long-span space structure;

[0013] Figure 3 For Figure 2 an enlarged view of part A;

[0014] Figure 4 It is a schematic structural diagram of the use state of the ratchet wrench type driving mechanism provided by the present utility model.

[0015] The labels in the figure are: 1, kinematic gear train unit; 2, arch seat; 3, kinematic gear; 4, connecting sleeve; 5, ratchet wrench; 6, extension sleeve; 7, shed; 8, driving shaft. Detailed Embodiments

[0016] In order to better understand the purpose, structure and function of the present utility model, the following further describes in detail a ratchet wrench type driving mechanism of the present utility model with reference to the drawings.

[0017] Such as Figures 1-4As shown in the figure, a ratchet wrench type driving mechanism provided in this embodiment includes: several groups of kinematic gear train units 1, and each group of kinematic gear train units 1 is composed of two kinematic wheels 3; the kinematic gear train units 1 are installed under the two side arch seats 2 of a large-span space structure (shed 7) for driving the large-span space structure to move; one end of a connecting sleeve 4 is sleeved on the driving shaft 8 of the kinematic wheel 3, and the other end of the connecting sleeve 4 is sleeved with a ratchet wrench 5; by rotating the ratchet wrench 5, the kinematic wheel is driven, and then the large-span space structure is driven.

[0018] Preferably, an extension sleeve 6 is sleeved on the end of the ratchet wrench 5.

[0019] This application designs a ratchet wrench type driving mechanism, including a running gear train, a connecting rod sleeve, a ratchet wrench and its extension sleeve; the mechanism drives the running gear train through the rotation of the ratchet wrench to realize the linear movement of the shed; by calculation, the required traction force and ratchet driving torque are determined to ensure the effectiveness of the mechanism; this application realizes that a large-span structure can be moved with a small amount of manpower; through the mechanical advantage of the ratchet wrench, the manpower requirement is reduced and the moving efficiency is improved; the design of the mechanism allows for flexible adjustment of the moving speed and the number of driving points. Embodiment

[0020] For the driving structure provided in this application, the applicant has conducted actual experiments as follows:

[0021] 1. Driving mechanism design: Under the two side arch seats of the large-span space structure, 10 arch seats are arranged on each side, and a set of ratchet wrench mechanism is installed under each arch seat to drive the shed to generate displacement.

[0022] 2. Components and tools constituting the ratchet wrench driving mechanism:

[0023] Running gear train, 1 under each arch seat, a total of 20;

[0024] Connecting rod sleeve, 1 for each unit, a total of 20;

[0025] Ratchet wrench, 1 for each unit, a total of 20;

[0026] Ratchet wrench extension sleeve, 1 for each unit, a total of 20.

[0027] 3. Driving force calculation:

[0028] Calculation of rolling friction traction force: The total weight is 350 kN and the rolling friction coefficient is 0.05, and the calculated frictional force is 17.5 kN.

[0029] Calculation of ground slope lift force: Calculated according to the maximum slope of 3 / 1000, 1.05 kN is obtained.

[0030] Total traction force: The rolling friction traction force plus the ground slope lift force gives 18.55 kN.

[0031] Calculation of ratchet drive torque: The roller diameter is 200 mm. Multiply the total traction force by the roller radius to calculate the torque as 1.855 kN·m.

[0032] 4. Drive point setting: A total of 20 kinematic gear systems are provided on both sides of the structure. If driven at 20 positions during operation, the drive torque of a single gear system is 93 N·m. If driven at 6 positions during operation, the maximum drive torque of a single-point gear system is 309 N·m.

[0033] 5. Operating propulsion speed: According to the actual measurement of 6 people, the speed is 30 mm - 40 mm / s, and it can be flexibly adjusted according to different ground conditions.

[0034] 6. Conclusion: The ratchet wrench type drive mechanism of the present invention provides an innovative human-powered drive solution, which is applicable to the mobile shed of the large-span bow structure, and has the advantages of simple operation, high moving efficiency, strong adaptability, etc., and has a wide application prospect.

[0035] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this utility model belongs.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model, and they should all be covered within the scope of the claims and the description of the present utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A ratchet wrench type driving mechanism, characterized in that, Including: A number of sets of kinematic gear train units, each set of kinematic gear train units being composed of two kinematic wheels; the kinematic gear train units are installed under the two side arch seats of the long-span spatial structure for driving the long-span spatial structure; one end of a connecting sleeve is sleeved on the driving shaft of the kinematic wheel, and the other end of the connecting sleeve is sleeved with a ratchet wrench; the kinematic wheel is driven by rotating the ratchet wrench, thereby driving the long-span spatial structure.

2. The ratchet wrench type drive mechanism according to claim 1, wherein The end of the ratchet wrench is sleeved with an extension sleeve.

Images