13results about How to "Large working space" patented technology

This utility model relates to a lithium-ion battery rivet gun, belonging to the field of hardware tools. The utility model includes a housing, a battery, a motor reducer, a rivet sleeve assembly, and a front cover. The battery is electrically connected to the motor reducer, which is installed inside the housing. The front cover is installed at the front end of the housing. Its structural features include: a small sector tooth, a large sector tooth, a lead screw sleeve, a lead screw, a gear seat, and a gear cover. The output shaft of the motor reducer is connected to the small sector tooth, which meshes with the large sector tooth. The large sector tooth is installed on the gear seat via the gear cover. The gear seat is installed inside the housing. The large sector tooth is fitted over the lead screw sleeve, and the lead screw sleeve is fitted over the lead screw. The front end of the lead screw is connected to the rivet sleeve assembly. A limiting plate is installed inside the housing, and a limiting groove is provided on the limiting plate. A limiting post is installed at the rear end of the lead screw, and the limiting post is located within the limiting groove.

The utility model discloses a kind of viscosity detection devices for woodworking glue production, including base, stand and controller, the upper surface of the base is fixedly installed with stand, the surface of the stand is equipped with the controller that can move up and down, the rear end side of the controller is installed with locking knob, the lower end of the controller is installed with motor, the output end of the motor is fixedly installed with rotor, the side surface of the motor is installed with protection frame.The utility model relates to a kind of viscosity detection devices for woodworking glue production, when the rotor needs to be disassembled, pull down protection frame, when protection frame drops, slide sleeve will be driven to drop, until the positioning rod of protection frame is withdrawn from the positioning groove of motor, in this process, spring will be compressed by the slide sleeve that is moved down, finally overturn protection frame and loosen the external force that pull down protection frame, at this time, there is greater working space when the rotor is disassembled, and it is not affected by the fixed protection frame.

The utility model provides a kind of multi-head adjustable support node and foundation pit multi-node support structure, solve the problem that the fixed angle foundation pit support node in prior art cannot adapt to special-shaped foundation pit, and then cause to increase construction difficulty, affect the problem of supporting effect;Wherein multi-head adjustable support node, comprising: fixed rod and more than one steering piece, steering piece includes first hinged component and second hinged component, one end of first hinged component is hinged with one end of second hinged component, and the other end of first hinged component is fixed with fixed part;More than one connecting rod, one end of connecting rod is fixed with the other end of second hinged component, fixed rod is fixed with a support rod, and is connected with other support rod by the other end of connecting rod, adjust steering piece, drive other support rod to rotate, to adapt to the supporting scene of multiple angles, increase support distance and operation space becomes larger, convenient for construction, and reduce support rod consumption, save supporting cost.

The utility model relates to a device of quick replacement of wiping roller non - woven fabric under narrow space belongs to the technical field of film calendering, it includes online wiping roller subassembly, still includes wiping roller lifting platform subassembly, wiping roller lifting platform includes wiping roller bottom plate, lifting platform bottom plate and rodless cylinder 21, rodless cylinder is equipped with four groups, and four ends of lifting platform bottom plate are installed on the slider of corresponding rodless cylinder respectively, wiping roller bottom plate is located the top of lifting platform bottom plate, and wiping roller bottom plate has the freedom degree of horizontal movement on lifting platform bottom plate, the top of lifting platform bottom plate still is equipped with push cylinder, and the cylinder mounting plate of piston rod end of push cylinder abuts at wiping roller bottom plate edge, online wiping roller subassembly is installed on wiping roller bottom plate, the utility model can realize the quick replacement of non - woven fabric under narrow space.

This invention discloses a rope-driven anthropomorphic wrist joint with rotational decoupling characteristics, belonging to the field of robotics technology. It includes a rotational decoupling mechanism and a differential mechanism. In the rotational decoupling mechanism, a fixed wheel is fixed to the robot's forearm, while the driving wheel is connected to the differential mechanism. The rope assembly enables flexible drive of the joint module. The rotational decoupling mechanism employs a movable pulley system, utilizing the characteristics of the movable pulleys to decouple the motion of the two sets of steel cables as they pass through the rotational joint. This allows the drive unit to be centrally located on the robot base or near the proximal end structure. The differential mechanism consists of a differential rotation axis, a fixed seat on the outer side of the differential rotation axis, and two symmetrically arranged sets of differential rotating wheels, forming a differential structure. This enables multi-degree-of-freedom composite movements such as pitch and yaw within a limited space, significantly improving structural compactness. This invention uses a rope-driven combined with rope transmission structure, enhancing joint flexibility and effectively isolating the motor output from impact and vibration.

This invention relates to the field of solar power generation technology, and particularly to a control method for a dish concentrator based on an I3-RPS tracking mechanism. The control method includes: establishing a solar direction vector calculation model; establishing a multi-coordinate system to describe the motion of the dish concentrator, and deriving the homogeneous transformation matrix between the coordinate systems; obtaining the pose of the moving platform based on the solar direction vector, and establishing a mapping relationship between the length, velocity, and acceleration of the telescopic rod and the pose of the moving platform through inverse kinematics; establishing an inverse dynamics model based on the principle of virtual work; designing a hierarchical composite control strategy; at the top level, using a parallel synchronous architecture to coordinate the motion of the I3-RPS tracking mechanism; at the bottom level, designing an RBF-FSMC controller for the I3-RPS tracking mechanism, replacing the switching function with a saturation function, dynamically adjusting the saturation function gain and boundary layer thickness through fuzzy rules, and introducing a radial basis function neural network to approximate system modeling errors and external disturbances online. This control method exhibits high tracking accuracy and strong anti-interference capability.

The present application relates to the field of civil engineering construction technology, and specifically discloses a tunnel construction method with longitudinal slope and corbels, comprising the following steps: S1: completing initial lining construction and constructing part of secondary lining wall body to form a formwork structure lap joint area, and entering secondary lining wall body and arch construction preparation; S2: secondary lining trolley assembly and debugging; S3: waterproof and drainage system construction; S4: reinforcing steel bar and water stop belt installation; S5: secondary lining trolley positioning and formwork structure installation; S6: secondary lining concrete pouring; S7: demolding and curing: entering the demolding process after 24 hours of concrete pouring completion, and the concrete curing time after demolding is not less than 7 days; S8: trolley forward movement, repeating steps S3 to S7 until the secondary lining of the tunnel is completed. The present application can be used for special tunnel construction with longitudinal slope and corbels, and can realize one-time integral pouring of corbels and tunnel secondary lining, improving the stress performance of corbel structure.

This invention provides a SCARA robotic arm, characterized by comprising: a movable base, at least two articulated arms, and articulated motors disposed at each articulated arm; the movable base is sequentially connected to each articulated arm; each articulated motor is a planetary gear motor, and each articulated motor is rigidly directly connected to a follower structure via coaxial bearings; an end effector is mounted on the end articulated arm. This invention, by selecting an integrated articulated motor with a planetary reducer as the drive unit, enables the joint output to achieve high torque and sufficient speed without the need for external multi-stage reduction links, directly increasing the output capacity per unit volume on the drive side, thereby reducing the need for additional structural and transmission components to meet dynamic performance requirements. The rigid direct connection scheme between the articulated motor and the follower structure shortens the power transmission path, reduces backlash and flexibility introduced by components such as synchronous belts / linkage mechanisms, and lowers phase lag and energy loss.

The utility model belongs to the field of electric power equipment, especially convenient maintenance's box -type substation, to the existing due to the compact internal structure of box -type substation, space is limited, when maintaining, often need to consume a lot of time and energy to disassemble and install various components, especially the disassembly and replacement of the guard plate are extremely inconvenient, the box -type substation is not perfect enough on the heat dissipation design, and the layout and quantity of the heat dissipation hole are unreasonable, which cannot meet the demand of equipment heat dissipation. The utility model discloses a support bottom plate, a support column is fixedly installed in the top four corners of the support bottom plate, a top plate is fixedly installed on the top of the four support columns, in the utility model, the first guard plate and the second guard plate can be conveniently disassembled and replaced. The plurality of second heat dissipation holes and the plurality of first heat dissipation holes help the heat generated during the operation of the box -type substation to be dissipated in time, reducing the internal temperature of the equipment.

This invention discloses a magnetic microrobot drive control device, belonging to the field of microrobot drive control technology. It includes a multi-axis robot arm, a magnetic control platform base connected to the multi-axis robot arm, a magnetic ball holder connected to the magnetic control platform base, a magnetic ball cover covering the magnetic ball holder, and a permanent magnet ball rotatably disposed within the magnetic ball holder and magnetic ball cover. A coil base is disposed on the magnetic control platform base around the magnetic ball holder, and an electromagnetic coil unit is mounted on the coil base. This invention offers advantages such as a large working space, high precision control, and the ability to solve the problems of heat generation and dissipation during coil operation and limited working space. Finally, it boasts rapid response and low cost.

This utility model provides a high-sealing junction box, belonging to the technical field of junction boxes. It includes a base plate, with two symmetrically fixed vertical sidewalls on both sides of the front of the base plate. A C-shaped frame is horizontally slidably installed between the two sidewalls, forming a box structure. Circular perforations are installed in the middle of the upper and lower ends of the C-shaped frame. Several arc-shaped blades are movably installed in the center of the perforations. A limiting bracket for retracting the arc-shaped blades is rotatably installed in the center of the perforations, forming a camera aperture structure. A sealing sleeve for fitting onto the cable is fitted at the opening of the perforations. The arc-shaped blades retract and abut against the outer edge of the sealing sleeve to form a seal. This utility model is flexible and convenient to use, can adapt to the sealing installation of cables of different specifications, and has good overall performance.

This invention discloses a passive adaptive mechanism for the surface topography of small celestial bodies, comprising a clamping device, a fixed platform, a moving platform, and three identical motion chains located between the moving and fixed platforms. Each motion chain is circumferentially 120° apart. The clamping device is also 120° apart and mounted on the base plate of the moving platform to clamp and fix the attachment mechanism. When the attachment mechanism contacts a complex terrain and the attachment fitting spherical surface is not fully aligned, the position and attitude of the attachment mechanism shift during the attachment process. At this time, the robotic arm remains fixed, and the end effector attitude and position of the robotic arm are corrected through a parallel passive adaptive mechanism. This invention is a completely passive mechanism, requiring no control system or measurement system. The equipment structure is relatively simple, highly reliable, and easy to maintain.