Jacking and sliding device based on wind tunnel experiment
By using the lifting hydraulic jack and hydraulic slip components in wind tunnel construction, the problems of load instability and space limitation in traditional slip devices in large wind tunnels are solved, and higher construction safety and efficiency are achieved. Reduced construction costs.
Patent Information
- Application Number
- CN202420764543.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2034-04-15
AI Technical Summary
In the construction of large wind tunnels, traditional walking slip devices are prone to lateral deviation, poor slip synchronization, resulting in unstable load and safety hazards. In addition, space is limited during construction, large lifting equipment cannot be used, resulting in construction Insecure and inefficiency.
Using the lifting hydraulic jack and hydraulic slip assembly, the lifting hydraulic jack is carried out to push the load equipment through the lifting hydraulic jack, and the load equipment is placed on the hydraulic slip assembly for sliding, simplifying the structure and reducing the hydraulic slip assembly. Withstand loads.
It improves the safety of construction, simplifies the lifting and sliding device, saves time and effort, reduces construction costs, and avoids the safety risks of unstable loads.
Smart Images
Figure CN222124689U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of wind tunnel experiments, and in particular relates to a jacking and sliding device based on wind tunnel experiments. Background Art
[0002] With the development of domestic urban construction, large-span flexible bridges, super-high-rise buildings, and special structure buildings are increasing. At the same time, high-end equipment manufacturing in the fields of automobiles and aerospace continues to maintain a rapid development trend. These buildings and equipment need to be tested in wind tunnels at the beginning of design in order to obtain the best performance and appearance layout to ensure safety and stability. Therefore, the construction of various types of large wind tunnels is also a development trend.
[0003] During the construction and maintenance of large wind tunnels, there are many heavy-duty equipment that need to be installed, inspected and maintained. However, the space inside and around the wind tunnel is limited, and large lifting equipment cannot be used. During the construction process, a lifting hydraulic cylinder is usually used to perform jacking and sliding construction operations. When using a lifting hydraulic cylinder, the lifting load of the sliding support point is easy to control, which improves the safety of construction and reduces the load on the sliding component. The traditional method of using a walking sliding device for construction is prone to lateral deviation and poor sliding synchronization, which makes the load unstable and causes safety problems. Utility Model Content
[0004] In view of the problems existing in the prior art, the utility model provides a jacking and sliding device based on wind tunnel experiments, which performs jacking and sliding construction operations through a jacking hydraulic cylinder sliding device, thereby improving construction safety, simplifying the jacking and sliding device, saving time and effort, and reducing construction costs.
[0005] To achieve the above technical objectives, the utility model adopts the following technical solutions: a lifting and sliding device based on a wind tunnel experiment, wherein a lifting hydraulic jack, a hydraulic sliding assembly and a pad are arranged in the wind tunnel, two pads of equal height are laid axially inside the wind tunnel, and a load equipment placement platform is symmetrically arranged on the two pads, and a lifting hydraulic jack is respectively provided on the pads on the front and rear sides of the load equipment placement platform; a hydraulic sliding assembly is respectively provided on each pad, and the hydraulic sliding assembly is located below the load equipment.
[0006] Furthermore, the fixed end of the lifting hydraulic jack is fixedly connected to the pad, and the movable end of the lifting hydraulic jack is located below the load device.
[0007] Furthermore, each hydraulic sliding assembly comprises: a sliding jack, a sliding shoe and a sliding track, and the sliding jack and the sliding shoe are symmetrically arranged on both sides of the sliding track.
[0008] Furthermore, the sliding jack is arranged at the middle groove of the sliding track, the fixed end of each sliding jack is fixedly connected to one side of the corresponding sliding track, and the movable end of each sliding jack is fixedly connected to the corresponding sliding shoe.
[0009] Furthermore, the height of the sliding shoe is higher than the height of the loading equipment placement platform.
[0010] Furthermore, the sliding shoe includes: a limit block, a bearing surface, a push earring and a wear-reducing layer, the top of the push earring is fixedly connected to the bearing surface, the bearing surface is provided with a limit block, and the outer surface of the bearing surface sliding along the sliding track is provided with a wear-reducing layer.
[0011] Furthermore, the push earring is located at the middle groove of the two sliding tracks, and the push earring is clamped with the moving end of the sliding jack.
[0012] Furthermore, the bearing surface is located on the sliding track, and the bearing surface is slidably connected to the sliding track.
[0013] Furthermore, the sliding track is designed in multiple sections, and two adjacent sections are fixedly connected by mechanical buckles.
[0014] Furthermore, the sliding track is arranged on the inner side of the corresponding load equipment placement platform.
[0015] Compared with the prior art, the utility model has the following beneficial effects: during the construction process, the jacking and sliding device of the utility model based on the wind tunnel experiment adopts a jacking hydraulic jack to perform the jacking operation of the load equipment. Since the jacking load is easy to control, the safety of the construction is improved; and the pushed load equipment is placed on the hydraulic sliding assembly for sliding construction operations, which reduces the load-bearing of the hydraulic sliding assembly. Compared with the method of using a walking sliding device for construction, the structure of the jacking and sliding device is simplified, which saves time and effort and reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the jacking and sliding device of the utility model based on the wind tunnel experiment;
[0017] Figure 2 It is a structural diagram of the lifting hydraulic jack in the utility model;
[0018] Figure 3 It is a structural schematic diagram of the hydraulic sliding assembly in the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the sliding shoe in the utility model;
[0020] Figure 5 It is a structural schematic diagram of the sliding track in the utility model. DETAILED DESCRIPTION
[0021] The technical solution of the utility model is further explained below in conjunction with the accompanying drawings.
[0022] like Figure 1 The overall structural diagram of the jacking and sliding device based on the wind tunnel experiment of the utility model is shown in the figure. A jacking hydraulic jack 1, a hydraulic sliding assembly 2 and a pad 3 are provided in the wind tunnel. Two pads 3 of equal height are laid axially inside the wind tunnel. The load equipment placement platform is symmetrically arranged on the two pads 3. A jacking hydraulic jack 1 is provided on each pad 3 located on the front and rear sides of the load equipment placement platform; a hydraulic sliding assembly 2 is provided on each pad 3, and the hydraulic sliding assembly 2 is located below the load equipment. The utility model adopts a jacking hydraulic jack 1 to carry out the jacking operation of the load equipment. Since the jacking load is easy to control, the safety of the construction is improved; and the jacked load equipment is placed on the hydraulic sliding assembly 2 for sliding construction, which reduces the load bearing of the hydraulic sliding assembly 2, simplifies the structure of the jacking and sliding device, saves time and effort, and reduces construction costs.
[0023] like Figure 2 It is a structural schematic diagram of the lifting hydraulic jack 1 in the utility model. The fixed end of the lifting hydraulic jack 1 is fixedly connected to the pad 3, and the movable end of the lifting hydraulic jack 1 is located below the load equipment. The utility model lifts the load equipment from the load equipment placement table through the synchronous movement of the lifting hydraulic jack 1 to ensure the lifting safety of the load equipment, and places the lifted load equipment on the hydraulic sliding assembly 2, so as to slide to the specified position in the wind tunnel.
[0024] like Figure 3 In the utility model, each hydraulic sliding assembly 2 includes: a sliding jack 21, a sliding shoe 22 and a sliding track 23. The sliding jack 21 and the sliding shoe 22 are symmetrically arranged on both sides of the sliding track 23, so as to realize the bidirectional movement of the load equipment in the wind tunnel, and the sliding track 23 is arranged on the inner side of the corresponding load equipment placement platform.
[0025] In the utility model, the sliding jack 21 is arranged at the middle groove of the sliding track 23. The fixed end of each sliding jack 21 is fixedly connected to one side of the corresponding sliding track 23, and the movable end of each sliding jack 21 is fixedly connected to the corresponding sliding shoe 22. The height of the sliding shoe 22 in the utility model is higher than the height of the load equipment placement platform, ensuring that the lifted load equipment can fall on the sliding shoe 22 first, and the sliding shoe 22 is driven to move by the telescopic movement of the sliding jack 21, thereby driving the load equipment to move in the wind tunnel.
[0026] like Figure 4The sliding shoe 22 of the utility model includes: a limit block 221, a bearing surface 222, a push earring 223 and a friction reduction layer 224. The push earring 223 is located at the middle groove of the sliding track 23, and forms a sliding pair with the sliding track 23, and the push earring 223 is clamped with the moving end of the sliding jack 21; the top of the push earring 223 is fixedly connected with the bearing surface 222, and a limit block 221 is provided on the bearing surface 222. The limit block 221 is located on one side of the corresponding sliding jack 21, which is convenient for limiting the load device during the sliding process and preventing the load device from falling and causing damage during the sliding process; the bearing surface 222 is located on the sliding track 23, and the bearing surface 222 is slidably connected to the sliding track 23; the outer surface of the bearing surface 222 sliding along the sliding track 23 is provided with a friction reduction layer 224 to reduce the friction between the side wall of the bearing surface 222 and the inner wall of the wind tunnel during the sliding process.
[0027] like Figure 5 The sliding track 23 in the utility model is of multi-section design, and two adjacent sections are fixedly connected by mechanical buckles. The operation is simple and convenient, and the on-site arrangement is flexible, which is particularly suitable for wind tunnels with narrow space.
[0028] Example
[0029] In this embodiment, the load device is a 350T electric motor. The electric motor in the wind tunnel needs to be lifted up to the hydraulic sliding assembly through the lifting and sliding device designed by the utility model, and then slid 15 meters to the rear cabin inspection space for inspection and maintenance. Four 200T 100mm stroke and 70MPa design pressure lifting hydraulic jacks 1 are used to lift the motor synchronously. Considering the problem of unbalanced weight and safety factor of the motor, the theoretical lifting force of 200T per point is selected during the design. There are four points of lifting, the total lifting force is 800T, and the overall safety factor is ≥2; the working stroke of each control point is 100mm. The diameter of this lifting hydraulic jack 1 is 235mm, the body height is 296mm, and it is designed with an off-load saddle to ensure that the load surface inclination is ≤3°. The position of the sliding shoe 22 is adjusted by the sliding jack 21 in the hydraulic sliding assembly, so that the sliding shoe 22 is located below the jacked motor, and the jacked motor is placed on the bearing surface 222 of the sliding shoe 22, and is limited by the limit block 221. The sliding jacks 21 in the two sliding rails 23 move synchronously to push the motor located on the sliding shoe 22 forward, and each time the sliding jack 21 pushes the distance of 410mm, and the sliding jack 21 is continuously pushed back and forth until it reaches the specified position. The jacking sliding device of the utility model improves the safety of construction, simplifies the jacking sliding device, saves time and labor, and reduces construction costs.
[0030] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.
Claims
1. A lifting and sliding device based on wind tunnel experiments, characterized in that: A lifting hydraulic jack (1), a hydraulic sliding assembly (2) and a pad (3) are provided in the wind tunnel. Two pads (3) of equal height are laid axially inside the wind tunnel. Load equipment placement tables are symmetrically arranged on the two pads (3). A lifting hydraulic jack (1) is provided on each pad (3) located at the front and rear sides of the load equipment placement table. A hydraulic sliding assembly (2) is provided on each pad (3). The hydraulic sliding assembly (2) is located below the load equipment.
2. The jacking and sliding device based on wind tunnel experiment according to claim 1 is characterized in that: The fixed end of the lifting hydraulic jack (1) is fixedly connected to the pad (3), and the movable end of the lifting hydraulic jack (1) is located below the load device.
3. The jacking and sliding device based on wind tunnel experiment according to claim 1 is characterized in that: Each hydraulic sliding assembly (2) comprises a sliding jack (21), a sliding shoe (22) and a sliding track (23), wherein the sliding jack (21) and the sliding shoe (22) are symmetrically arranged on both sides of the sliding track (23).
4. The jacking and sliding device based on wind tunnel experiment according to claim 3 is characterized in that: The sliding jacks (21) are arranged in the middle groove of the sliding track (23), the fixed end of each sliding jack (21) is fixedly connected to one side of the corresponding sliding track (23), and the movable end of each sliding jack (21) is fixedly connected to the corresponding sliding shoe (22).
5. The jacking and sliding device based on wind tunnel experiment according to claim 3 is characterized in that: The height of the sliding shoe (22) is higher than the height of the loading equipment placement platform.
6. The jacking and sliding device based on wind tunnel experiment according to claim 3 is characterized in that: The sliding shoe (22) comprises: a limit block (221), a bearing surface (222), a push earring (223) and a friction-reducing layer (224); the top of the push earring (223) is fixedly connected to the bearing surface (222); the limit block (221) is provided on the bearing surface (222); and the friction-reducing layer (224) is provided on the outer side of the bearing surface (222) sliding along the sliding track (23).
7. The jacking and sliding device based on wind tunnel experiment according to claim 6 is characterized in that: The push earring (223) is located at the middle groove of the sliding track (23), and the push earring (223) is clamped with the moving end of the sliding jack (21).
8. The jacking and sliding device based on wind tunnel experiment according to claim 6 is characterized in that: The bearing surface (222) is located on the sliding track (23), and the bearing surface (222) is slidably connected to the sliding track (23).
9. The jacking and sliding device based on wind tunnel experiment according to claim 3 is characterized in that: The sliding track (23) is of multi-section design, and two adjacent sections are fixedly connected by mechanical buckles.
10. The jacking and sliding device based on wind tunnel experiment according to claim 3 is characterized in that: The sliding track (23) is arranged on the inner side of the corresponding load equipment placement platform.