CN113696128A - Multi-degree-of-freedom adjusting device for butt joint of conical cabin sections - Google Patents
Multi-degree-of-freedom adjusting device for butt joint of conical cabin sections Download PDFInfo
- Publication number
- CN113696128A CN113696128A CN202111023527.2A CN202111023527A CN113696128A CN 113696128 A CN113696128 A CN 113696128A CN 202111023527 A CN202111023527 A CN 202111023527A CN 113696128 A CN113696128 A CN 113696128A
- Authority
- CN
- China
- Prior art keywords
- frame
- freedom
- wheel
- butt joint
- degree
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000001503 joint Anatomy 0.000 title claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 116
- 230000000670 limiting effect Effects 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 33
- 230000033001 locomotion Effects 0.000 claims description 17
- 238000003032 molecular docking Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 29
- 238000009434 installation Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 description 14
- 230000036544 posture Effects 0.000 description 13
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to the field of engine ground test thrust frame installation, in particular to a conical cabin section butt joint multi-degree-of-freedom adjusting device. The rail wheel comprises a wheel frame, wheels and a limiting locking mechanism, wherein the wheel frame is of a rectangular thin-wall square steel welded frame structure, the wheel frame is high in transverse and lateral deformation resistance, the limiting locking mechanism is symmetrically arranged on two sides, and a group of rollers can be locked simultaneously through a thread self-locking principle. The invention has the advantages of simple operation, low labor intensity, simple structure, high butt joint efficiency, reliable method and low safety risk.
Description
Technical Field
The invention relates to the field of engine ground test thrust frame installation, in particular to a conical cabin section butt joint multi-degree-of-freedom adjusting device.
Background
The thrust frame is one of the core key components of the ground ignition test bed of the solid rocket engine, the function of the thrust frame is to accurately transmit the thrust of the engine to a measuring sensor, and the large and medium-sized thrust frame is generally in a conical structure. At present, a thrust frame assembling and adjusting link of an engine ground test has no special assembling and adjusting device, and two left and right assembling personnel are generally adopted to move the thrust frame up and down and left and right to align the connecting hole sites of the engine when assembling and adjusting the small-sized thrust frame; when the medium and large thrust frame is assembled and adjusted, the crane hook and the assembler are matched with each other to align the connecting hole position of the engine. The method has the potential safety hazards of centralized operation and multiple hoisting operation near multi-person initiating explosive devices, and has low manual operation efficiency, thereby influencing the ignition progress of the engine with heat preservation requirements.
At present, the butt joint assembly and adjustment of the small-sized thrust frame are realized by carrying and lifting actions completely depending on manual operation of operators; for a medium-large thrust frame, due to the fact that the mass and the structure are large, the coordination of a crane is needed, and manual operation is achieved. At present, the following problems and disadvantages mainly exist in the butt joint installation process of a thrust frame and an engine:
(1) the labor intensity of the operation is large: the weight of a thrust frame of large and medium engines such as XX-26 missile primary and secondary engines is generally between 1000kg and 2000kg, the docking operation of the thrust frame is mainly completed by the mutual cooperation of an operator and a truck crane, at least 1 operator of the truck crane is needed, 1 operator of the crane commands the operator, and 4-5 operators of the docking operation need to adjust the pitch, the yaw and the distance between the docking end surface of the thrust frame and the end surface of the front skirt of the engine through manpower in the docking process, the position relation of a connecting hole of the front skirt of the engine needs to be controlled at the same time, the thrust frame of the engine even needs to rotate under the hoisting premise, and the operation labor intensity is high.
(2) The efficiency of repeated operation is low: the installation of the medium-large thrust frame requires an operator to level the thrust frame for multiple times under the cooperation of a crane so as to align the center of mass, and the process needs to carry out repeated test hoisting operation for multiple times. After leveling, the crane lifts the thrust frame to the approximate position, an assembler manually fine-tunes the position of the thrust frame to center the hole positions, the whole process needs to be continued for about 1 to 2 hours, and the efficiency is low due to pure manual operation. Many engines require that the time from a heat preservation storehouse to ignition of the engine is controlled to be 3 hours, and only the thrust frame assembling and adjusting process needs to consume nearly 3 hours, so that the ignition time requirement of the engine cannot be guaranteed.
(3) The safety quality risk is high: when the distance between the inner edge of the large thrust frame disc and the front end cover of the engine is minimum, the distance is less than 10mm in the butt joint process, the mounting hole of the thrust frame and the end face hole of the front skirt of the engine need to rotate in the butt joint process, pitching, yawing and rotating adjustment on the thrust frame are very difficult on the premise of hoisting the truck crane, the butt joint work can be completed only after some thrust frames need to be adjusted repeatedly, the thrust frame is hoisted near and above the engine for many times, and quality and potential safety hazards such as collision with the engine exist.
Therefore, aiming at the problems actually existing in the assembling and adjusting process of the engine ground test thrust frame, the assembling efficiency is urgently needed to be improved from the process perspective, the assembling quality is ensured, a set of semi-automatic butt-joint assembling device of the engine ground test thrust frame is constructed, the butt-joint method of the thrust frame is remodeled, the current situation that a crane needs to be used for multiple times and the initiating explosive devices are centralized by multiple persons in the assembling and adjusting process of the current thrust frame is changed, the thrust frame is placed in place in advance, and the butt joint is completed through accurate adjustment subsequently. The potential safety quality hazard of the link is eliminated. The high efficiency, safety and reliability of the installation and butt joint link of the thrust frame are realized.
Disclosure of Invention
Technical problem to be solved by the invention
The invention provides a multi-degree-of-freedom adjusting device for butt joint of conical cabin sections, which aims to solve the problems of high installation operation strength, low working efficiency, high installation quality risk and the like.
Technical scheme adopted by the invention for solving technical problem
A multi-degree-of-freedom adjusting device for butt joint of conical cabin sections comprises a rail wheel assembly 2, a supporting frame 4, a transverse moving mechanism 3, a head lifting mechanism 1 and a central bidirectional adjusting mechanism 5,
the rail wheel assembly 2 comprises a wheel frame 23, wheels 21 and limiting locking mechanisms 22, the wheels 21 are fixed on a transverse frame of the wheel frame 23 in pairs, the two limiting locking mechanisms 22 are symmetrically arranged on a longitudinal frame of the wheel frame, and pressing blocks of the limiting locking mechanisms 22 face to a wheel cylindrical surface;
the lower end of the support frame is connected with a rail wheel assembly 2 through a transverse moving mechanism 3, and the upper end of the support frame is respectively connected with a head lifting mechanism 1 and a central bidirectional adjusting mechanism 5;
the transverse moving mechanism 3 comprises a ball screw, a hand wheel, a sliding table, a linear guide rail and a sliding block, the linear guide rail of the transverse moving mechanism 3 is fixedly arranged on a transverse frame of the rail wheel assembly, the sliding block is arranged on a lower positioning surface of the sliding table, an upper mounting surface of the sliding table is connected with the support frame, the hand wheel is rotated, the sliding table moves along the linear guide rail, and the support frame is driven to realize the degree of freedom of movement of the cabin section structure along the Y direction;
the head lifting mechanism 1 comprises a slide carriage mechanism, a lifting mechanism and a roller frame assembly, the lifting mechanism is installed on the slide carriage mechanism, the roller frame assembly is arranged on the lifting mechanism, the slide carriage mechanism drives a ball screw to move through a hand wheel, worm and worm transmission is adopted, the roller frame assembly mainly realizes the support of the small end of the conical cabin section and can rotate around an axis, two sets of rollers are adopted to realize the support of the two points of the head, and the freedom degree of rolling (rotating around X) of the small end of the conical cabin section can be provided;
the central bidirectional adjusting mechanism 5 comprises a hand wheel 51, a roller assembly 52, a sliding block 53 and a sliding block base 54, wherein the roller assembly 52 is arranged on the sliding block base 54 through the sliding block 53, and the hand wheel 51 provides power for the sliding block 53.
Furthermore, the lifting rod of the head lifting mechanism 1 freely rotates around the axis, and forms a three-point supporting mode with the central bidirectional adjusting mechanism 5, so that the attitude adjustment of 6 degrees of freedom of pitch, yaw and roll can be realized for the all-directional movement of the space attitude of the conical cabin section.
Furthermore, the central bidirectional adjusting mechanism 5 is used for bidirectionally adjusting the lifting and the transverse movement of the central shaft of the large disc, a split symmetrical design is adopted, and the adjustment of the axial pitch, the yaw and the quadrant deviation of the engine is realized after the lead screws on the two sides of the adjusting device are matched with the head adjusting mechanism.
Furthermore, the central bidirectional adjusting mechanism 5 comprises two sets of symmetrically-mounted sliding tables and rollers, and the sliding tables and the rollers are driven by hand wheels to drive lead screws respectively.
Furthermore, the head lifting mechanism 1 adopts worm gear transmission and lead screw transmission, the top end is a rotating roller frame structure, and a proper roller frame is replaced according to different structures.
Further, the wheel 21 rim has a limit flange to prevent the wheel from separating from the guide rail.
Further, the limiting locking mechanism 22 comprises a guide seat, a threaded rod and a pressing block, the guide seat is an internal thread, the threaded rod is an external thread, and the pressing block is installed at the head of the threaded rod.
Furthermore, the support frame and the rail wheel assembly frame adopt a frame structure formed by welding section steel and steel plates.
Advantageous effects obtained by the present invention
The device and the method for adjusting the multiple degrees of freedom of the butt joint of the conical cabin sections have the following advantages:
simple operation, low labor intensity: the device has the basic characteristic of simple operation, can realize the multi-degree-of-freedom adjustment of conical cabin sections such as the thrust frame and the like only by an operator in a mode of rotating the hand wheel, and has low labor intensity.
Simple structure, the butt joint is efficient: the device has the advantages of simple structure, realization of six degrees of freedom in space by the adjusting mechanism, controllable operation range and amplitude, easy operation of the butt joint method and high butt joint efficiency.
The method is reliable and has low safety risk: the device structure and the method are safe and reliable, potential safety hazards caused by blind operation are eliminated, the device can be slowly and slightly adjusted through the adjusting mechanism, the adjusting process is reliable and controllable, and the safety risk is low.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1: the overall structure diagram of the conical cabin butt joint multi-degree-of-freedom adjusting device,
FIG. 2: the structure of the track wheel assembly is shown,
FIG. 3: the structure chart of the central bidirectional adjusting mechanism,
FIG. 4: a schematic diagram of a lifting (Z direction) and offset (Y direction) adjusting method of a central bidirectional adjusting mechanism,
FIG. 5: a schematic diagram of an adjusting method of the moving and pitching (rotating around Y) postures of the conical cabin section along the Z axis,
FIG. 6: a schematic diagram of a method for adjusting the yaw (rotating around Z) attitude of a conical cabin segment,
wherein: 1-head lifting mechanism, 2-rail wheel assembly, 3-transverse moving mechanism, 4-support frame, 5-central bidirectional adjusting mechanism, 21-wheel, 22-limit locking mechanism, 23-wheel frame, 51-hand wheel, 52-roller assembly, 53-slide block and 54-slide table seat.
Detailed Description
The invention provides a multi-degree-of-freedom adjusting device for butt joint of conical cabin sections. The device is mainly used for supporting and assembling posture adjustment of tools such as conical or cylindrical barrel sections or thrust frames at all levels of missiles, instrument cabin sections, solid engines and the like, and has the functions of moving back and forth along a platform track, moving transversely, moving up and down, rotating around an axis, and pitching adjustment and horizontal swinging adjustment of a butt joint surface. The multi-degree-of-freedom adjusting device for the butt joint of the conical cabin sections comprises subsystems such as a rail wheel assembly, a supporting frame, a transverse moving mechanism, a head lifting mechanism and a central bidirectional adjusting mechanism. For engines of different models and sizes, the front support frame and the rear support frame are in modular design, and the installation of different engine thrust frames can be adapted by replacing different front support frame modules and different rear support frame modules.
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is obvious that the described embodiments are only some, not all embodiments of the proposed solution. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The invention is within the protection scope of the invention when the head-changing lifting mechanism is a central bidirectional adjusting mechanism or the head-changing lifting mechanism is a central bidirectional adjusting mechanism; it is within the scope of the present invention to change the three-point support method to a four-point support method; it is also within the scope of the present invention to change the manual drive to a motor drive.
The multi-degree-of-freedom adjusting device for conical cabin section butt joint is mainly used for butt joint of tools such as conical or cylindrical barrel sections or thrust frames of all levels of guided missiles, instrument cabin sections, solid engines and the like, and multi-degree-of-freedom movement of the postures and axes of the barrel sections is completed mainly through mutual matching of a plurality of motion pair mechanisms, so that the posture of the structure can move along X, Y, Z three directions and can rotate around Y, Z and X in 6 degrees of freedom under a space Cartesian coordinate system.
Before a test, the thrust frame is hung on the multi-degree-of-freedom adjusting device for the butt joint of the conical cabin section, the butt joint assembly of the thrust frame and the engine is carried out, the multi-degree-of-freedom adjusting device for the butt joint of the conical cabin section can move back and forth on the rail, has the functions of lifting, transverse moving and rotating, has the functions of adjusting pitching and horizontal swinging, and meets the requirement of space posture adjustment during the assembly of the thrust frame. Meanwhile, a rubber wheel structure capable of lifting is arranged on the frame, and the rubber wheel can be extended out after butt joint is completed, so that the rail wheel is separated from the rail, and the butt joint assembly device is moved out of the rail along the transverse direction.
Aiming at engine test tests of different models, the corresponding thrust frame supporting tool and the engine rotating supporting adapter ring are replaced, test runs of different engines can be carried out, and all the supporting adapter rings and the like can be quickly connected and fixed.
Structurally, the multiple-degree-of-freedom adjusting device for the butt joint of the conical cabin sections comprises subsystems such as a rail wheel assembly, a supporting frame, a transverse moving mechanism, a head lifting mechanism, a central bidirectional adjusting mechanism and the like, and the overall structure is shown in the following figure 1.
The rail wheel assembly takes the guide rail as an assembly and adjustment reference, provides freedom degree of movement of structures such as a cabin section along the X direction, and consists of a wheel frame, four groups of wheels and two sets of limiting and locking mechanisms, and the structure is shown in the figure 2. The four groups of wheels are installed and fixed on the transverse frame of the wheel frame in pairs, the two sets of limiting locking mechanisms are symmetrically installed on the longitudinal frame of the wheel frame, and the pressing blocks of the limiting locking mechanisms face the cylindrical surfaces of the wheels and can lock one group of wheels. The wheel frame adopts a frame structure formed by welding two groups of thin-wall rectangular square steel, so that the passive mass is small, and the capability of resisting transverse deformation and lateral distortion is high. The wheel is a spoke type structure, the mass is small, the limiting flange is arranged on the inner side of the wheel rim, the limiting flange has limiting and guiding effects on the wheel, and the wheel can be prevented from being separated from the working surface of the guide rail in the moving process. The limiting locking mechanism mainly comprises a guide seat, a threaded rod and a pressing block, the guide seat is an internal thread, the threaded rod is an external thread, the pressing block is installed at the head of the threaded rod, and the wheel can be pressed and locked through axial movement of a thread pair and a thread self-locking principle to achieve a limiting effect.
The support frame is a main connecting structure of the conical cabin section butt joint multi-degree-of-freedom adjusting device, the lower end of the support frame is connected with the rail wheel assembly through the transverse moving mechanism, and the upper end of the support frame is respectively connected with the head lifting mechanism and the central bidirectional adjusting mechanism. The support frame also adopts a rectangular square steel welded frame structure, four vertical legs are fixed on a sliding table of the transverse moving mechanism, and a slide carriage mechanism of the head lifting mechanism is horizontally arranged at the upper end of the frame.
The cross sliding mechanism mainly comprises a ball screw, a hand wheel, a sliding table, a linear guide rail, a sliding block and the like, and the hand wheel is rotated to enable the sliding table to move along the linear guide rail, so that the supporting frame is driven to realize the freedom degree of movement of the structures such as the cabin section and the like along the Y direction. The linear guide rail of the transverse moving mechanism is fixedly arranged on a transverse frame of the rail wheel assembly, the sliding block is arranged on the lower positioning surface of the sliding table, and the upper mounting surface of the sliding table is connected with the supporting frame.
The head lifting mechanism mainly comprises a slide carriage mechanism, a lifter and a roller frame assembly, wherein the slide carriage mechanism is moved by driving a ball screw through a hand wheel, the lifter is installed on the slide carriage mechanism and is driven by a worm and gear to realize torque amplification and reduction of lifting speed, stable lifting of the head can be realized, the roller frame assembly mainly realizes the support of the small end of the conical cabin section and can rotate around an axis, two-point support of the head is realized by adopting two sets of rollers, and the freedom degree of the small end of the conical cabin section rotating around an X can be provided. The hand wheel drives the slide carriage mechanism to move back and forth, so that the position of the head lifting mechanism can be adjusted to meet the requirements of supporting conical cabin sections with different lengths.
The central bidirectional adjusting mechanism mainly realizes the support of the large end of the conical cabin section and comprises two independent roller assemblies, the roller assemblies are arranged on a sliding block of a sliding table base, hand wheels on two sides of the sliding table base are rotated, the roller assemblies can be driven to bidirectionally move along a positioning surface of a sliding table under the driving of a lead screw, the two roller assemblies can realize the lifting (Z-direction) adjustment of the center of the large end of the conical cabin section when moving in opposite directions, the deviation (Y-direction) adjustment can be realized when moving in the same direction, and the roller structure also provides the freedom degree of rolling (rotating around X) of the large end. The center bidirectional adjusting mechanism is shown in fig. 3, and the principle of the lifting (Z direction) and offset (Y direction) adjusting method is shown in fig. 4.
The multiple-degree-of-freedom adjusting device for the butt joint of the conical cabin sections realizes the adjustment of the moving and pitching rotation postures of the conical cabin sections along the Z axis and around the Y rotation posture through the center lifting difference of the head lifting mechanism and the center bidirectional adjusting mechanism, and the following figure 5 shows that the conical cabin sections can be adjusted in the pitching rotation posture. The adjustment of the rotary posture of the conical cabin yaw around the Z axis is realized through the central horizontal swinging difference of the head lifting mechanism and the central bidirectional adjusting mechanism, as shown in the following figure 6. The adjustment of the rotating posture of the conical cabin section around the X is realized through the rotation of the roller structures of the head lifting mechanism and the central bidirectional adjusting mechanism.
The operation method of the conical cabin section butt joint multi-degree-of-freedom adjusting device is as follows:
the multi-degree-of-freedom adjusting device for the butt joint of the conical cabin sections is placed on the supporting surface of the guide rail, and the inner edges of four rollers of the rail wheel assembly are ensured to be embedded into the inner sides of the two guide rails.
The position of a slide carriage of the head lifting mechanism is adjusted through a hand wheel, so that the distance between the roller carrier assembly and the central bidirectional adjusting mechanism along the X direction meets the requirement of the supporting span of the conical cabin section.
And rotating hand wheels at two sides of the central bidirectional adjusting mechanism to adjust the idler wheels at two sides to be in basically symmetrical positions and meet the requirement of supporting the large end of the conical cabin section. And rotating a hand wheel of the lifter of the head lifting mechanism to adjust the height of the roller carrier assembly, so that the center of a circle of a support formed by the roller carrier assembly and the central bidirectional adjusting mechanism is at a basically uniform horizontal height.
And hoisting the conical cabin section onto a multi-degree-of-freedom adjusting device for butting the conical cabin section, wherein the small end of the conical cabin section is arranged on a roller of the head lifting mechanism, and the large end of the conical cabin section is arranged on a roller of the central bidirectional adjusting mechanism.
The conical cabin butt joint multi-degree-of-freedom adjusting device moves along the axis and is close to a butt joint product.
According to the actual state and the requirement, all mechanisms of the conical cabin section butt joint multi-degree-of-freedom adjusting device are adjusted, so that the conical cabin section and a butt joint product are overlapped in axis, and the butt joint process is completed.
When the distance and the close distance of the butt joint surface of the conical cabin section do not meet the requirements, the position of the multi-degree-of-freedom butt joint adjusting device of the conical cabin section on the guide rail is moved to be close to or far away from the butt joint surface, and the axial movement (X-direction movement) of the posture of the conical cabin section can be realized.
When the left and right distances of the axis of the conical cabin section do not meet the requirements, the hand wheel of the transverse movement mechanism is rotated, so that the posture of the conical cabin section can realize horizontal movement (Y-direction movement).
When the height of the axis of the conical cabin section does not meet the requirement, the head lifting mechanism lifter and the hand wheel of the central bidirectional adjusting mechanism are simultaneously rotated, when the roller frame assembly of the lifting mechanism is lifted, the rollers of the central bidirectional adjusting mechanism should move towards the direction close to each other, otherwise, the rollers should move towards the direction away from each other, and the posture of the conical cabin section can be lifted or lowered (Z-direction movement).
When the quadrant deviation of the conical cabin section does not meet the requirement, the conical cabin section is rotated to rotate on each roller around the axis, so that the conical cabin section can realize rolling attitude adjustment, namely rotate around the X direction.
When the pitching deviation of the conical cabin section does not meet the requirement, the head lifting mechanism lifter or the central bidirectional adjusting mechanism hand wheel is independently rotated to enable the small end or the large end of the conical cabin section to be lifted or lowered, so that the pitching attitude adjustment of the conical cabin section can be realized, namely the conical cabin section rotates around the Y direction.
When the yaw deviation of the conical cabin section does not meet the requirement, hand wheels on two sides of the central bidirectional adjusting mechanism are rotated simultaneously, so that the two sets of rolling wheels move in the same direction, and the conical cabin section can rotate around the head lifting mechanism to realize yaw attitude adjustment, namely, rotate around the Z direction.
After the invention is implemented, the functions of the product application range, the bearing capacity, the assembly and adjustment freedom degree and the like which can be realized by the device are tested and verified in the actual application effect, and the invention is successfully applied to model tests.
(1) The method is suitable for the diameter range of products: and (3) assembling and adjusting the ground test thrust frame of a certain engine (phi 1400 mm) by using the conical cabin segment butt joint multi-degree-of-freedom adjusting device. The device is in butt joint with the front skirt of the engine, the assembling and adjusting device can perform butt joint operation on a certain engine ground trial thrust frame, corresponding hole positions and end faces can be aligned and connected after the assembling and adjusting device is adjusted in the vertical and horizontal directions, and the verification device is suitable for butt joint of cabin sections of the specification.
(2) Maximum carrying capacity: and (3) carrying out assembling and adjusting operation on the thrust frame with the weight of about 2000Kg in a ground test of a certain engine by using the conical cabin section butt joint multi-degree-of-freedom adjusting device. The XX-68 engine ground test thrust frame is installed on the assembling and adjusting device, the thrust frame is adjusted in 6 degrees of freedom, each process is stopped for at least 1 hour, and the bearing capacity of the semi-automatic butt joint assembling device of the engine ground test thrust frame is examined to verify the maximum bearing capacity of the device to be 2000 kg.
(3) The achievable degree of freedom of installation and adjustment: and (3) carrying out assembling and adjusting operation on the ground test thrust frame of a certain engine by using the conical cabin section butt joint multi-degree-of-freedom adjusting device. Install certain engine ground test thrust frame on the installation and regulation device, carry out the regulation of 6 degrees of freedom to the thrust frame, the accommodation process of every direction is all smooth and easy, does not have the stuck phenomenon, and every direction control distance can satisfy to the accurate of certain engine ground test thrust frame skirt position hole site well in the front of the engine, has verified the regulation that the device can realize 6 degrees of freedom.
Claims (8)
1. The utility model provides a toper cabin section butt joint multi freedom adjusting device which characterized in that: comprises a rail wheel assembly (2), a supporting frame (4), a transverse moving mechanism (3), a head lifting mechanism (1) and a central bidirectional adjusting mechanism (5),
the rail wheel assembly (2) comprises a wheel frame (23), wheels (21) and limiting locking mechanisms (22), the wheels (21) are fixed on a transverse frame of the wheel frame (23) in pairs, the two limiting locking mechanisms (22) are symmetrically arranged on a longitudinal frame of the wheel frame, and pressing blocks of the limiting locking mechanisms (22) face to a cylindrical surface of the wheels;
the lower end of the support frame is connected with a rail wheel assembly (2) through a transverse moving mechanism (3), and the upper end of the support frame is respectively connected with a head lifting mechanism (1) and a central bidirectional adjusting mechanism (5);
the transverse moving mechanism (3) comprises a ball screw, a hand wheel, a sliding table, a linear guide rail and a sliding block, the linear guide rail of the transverse moving mechanism (3) is fixedly arranged on a transverse frame of the rail wheel assembly, the sliding block is arranged on a lower positioning surface of the sliding table, an upper mounting surface of the sliding table is connected with the support frame, the hand wheel is rotated, the sliding table moves along the linear guide rail, and the support frame is driven to realize the degree of freedom of movement of the cabin section structure along the Y direction;
the head lifting mechanism (1) comprises a slide carriage mechanism, a lifting mechanism and a roller frame assembly, wherein the lifting mechanism is arranged on the slide carriage mechanism, the roller frame assembly is arranged on the lifting mechanism, the slide carriage mechanism drives a ball screw to move through a hand wheel, worm and worm transmission is adopted, the roller frame assembly mainly realizes the support of the small end of the conical cabin section and can rotate around an axis, two points of the head are supported by adopting two sets of rollers, and the freedom degree of rolling (rotating around X) of the small end of the conical cabin section can be provided;
the central bidirectional adjusting mechanism (5) comprises a hand wheel (51), a roller assembly (52), a sliding block (53) and a sliding block seat (54), wherein the sliding block assembly (52) is arranged on the sliding block seat (54) through the sliding block (53), and the hand wheel (51) provides power for the sliding block (53).
2. The tapered cabin segment docking multiple degree of freedom adjustment device of claim 1, wherein: the head lifting mechanism (1) is characterized in that a lifting rod freely rotates around an axis, a three-point supporting mode is formed by the lifting rod and the central bidirectional adjusting mechanism (5), and the attitude of the conical cabin section can be adjusted by 6 degrees of freedom in all directions of movement, pitching, yawing and rolling.
3. The tapered cabin segment docking multiple degree of freedom adjustment device of claim 1, wherein: the central bidirectional adjusting mechanism (5) is used for bidirectionally adjusting the lifting and the transverse movement of the large-end central shaft, a split symmetrical design is adopted, and the adjustment of the axial pitch, the yaw and the quadrant deviation of the engine is realized after the lead screws on the two sides of the adjusting device are matched with the head adjusting mechanism.
4. The tapered cabin segment docking multiple degree of freedom adjustment device of claim 3, wherein: the central bidirectional adjusting mechanism (5) comprises two sets of sliding tables and rollers which are symmetrically arranged and respectively adopt a hand wheel to drive a lead screw for transmission.
5. The tapered cabin segment docking multiple degree of freedom adjustment device of claim 1, wherein: the head lifting mechanism (1) adopts worm gear transmission and lead screw transmission, the top end is a rotating roller frame structure, and a proper roller frame is replaced according to different structures.
6. The tapered cabin segment docking multiple degree of freedom adjustment device of claim 1, wherein: the wheel (21) rim has spacing flange, prevents that the wheel from breaking away from the guide rail.
7. The tapered cabin segment docking multiple degree of freedom adjustment device of claim 1, wherein: the limiting locking mechanism (22) comprises a guide seat, a threaded rod and a pressing block, the guide seat is an internal thread, the threaded rod is an external thread, and the pressing block is installed at the head of the threaded rod.
8. The device for adjusting the multiple degrees of freedom of butt joint of the conical cabin sections according to any one of claims 1 to 7, wherein: the support frame and the rail wheel assembly frame adopt a frame structure formed by welding profile steel and steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111023527.2A CN113696128A (en) | 2021-09-02 | 2021-09-02 | Multi-degree-of-freedom adjusting device for butt joint of conical cabin sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111023527.2A CN113696128A (en) | 2021-09-02 | 2021-09-02 | Multi-degree-of-freedom adjusting device for butt joint of conical cabin sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113696128A true CN113696128A (en) | 2021-11-26 |
Family
ID=78657124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111023527.2A Pending CN113696128A (en) | 2021-09-02 | 2021-09-02 | Multi-degree-of-freedom adjusting device for butt joint of conical cabin sections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113696128A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932361A (en) * | 2017-11-21 | 2018-04-20 | 上海航天精密机械研究所 | A kind of flexible six-degree-of-freedom posture adjustment platform for the assembling of bay section class product automatic butt |
| CN211442380U (en) * | 2019-12-06 | 2020-09-08 | 中国船舶重工集团公司七五0试验场 | Multifunctional tail section butt joint device |
| CN112756959A (en) * | 2020-12-25 | 2021-05-07 | 南京晨光集团有限责任公司 | Flexible multi-degree-of-freedom butt joint posture adjusting mechanism |
| CN113146179A (en) * | 2021-04-20 | 2021-07-23 | 贵州航天天马机电科技有限公司 | Installation method of multi-degree-of-freedom heavy rocket cabin section butt-joint parking device |
-
2021
- 2021-09-02 CN CN202111023527.2A patent/CN113696128A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932361A (en) * | 2017-11-21 | 2018-04-20 | 上海航天精密机械研究所 | A kind of flexible six-degree-of-freedom posture adjustment platform for the assembling of bay section class product automatic butt |
| CN211442380U (en) * | 2019-12-06 | 2020-09-08 | 中国船舶重工集团公司七五0试验场 | Multifunctional tail section butt joint device |
| CN112756959A (en) * | 2020-12-25 | 2021-05-07 | 南京晨光集团有限责任公司 | Flexible multi-degree-of-freedom butt joint posture adjusting mechanism |
| CN113146179A (en) * | 2021-04-20 | 2021-07-23 | 贵州航天天马机电科技有限公司 | Installation method of multi-degree-of-freedom heavy rocket cabin section butt-joint parking device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112059456B (en) | H shaped steel upset welding forming device | |
| CN111015561A (en) | Automatic rolling device for large-diameter long-section hollow cylinder | |
| EP2631041A2 (en) | Mobile robot | |
| CN113305794B (en) | Air floatation-based flexible sleeve cabin-penetrating assembly device and assembly method | |
| CN111155439B (en) | Prefabricated beam preassembling adjusting device and prefabricated beam preassembling adjusting process for building materials | |
| CN213034604U (en) | Movable maintenance device | |
| CN110579140A (en) | Multi-degree-of-freedom automatic adjusting mechanism for missile hanging vehicle | |
| CN117226498A (en) | Assembly system for large part butt joint of aero-engine | |
| CN112340266A (en) | Assembling device and assembling method for tank body swash plate | |
| CN103344420A (en) | Multi-shaft bolt tightening test bed | |
| CN111633366B (en) | H-shaped steel assembling equipment | |
| CN114162714A (en) | Hydro-power station vertical hydraulic hoist oil cylinder hoisting and turning-over cooperative system and turning-over method thereof | |
| CN110722335B (en) | Mandrel installation device of propeller for flexible ship | |
| CN113696128A (en) | Multi-degree-of-freedom adjusting device for butt joint of conical cabin sections | |
| CN211425225U (en) | Multi-degree-of-freedom automatic adjusting mechanism for missile hanging vehicle | |
| CN214717710U (en) | Automatic spraying system for locomotive bogie | |
| CN111906510B (en) | Assembling lifting mechanism of electric locomotive driving unit | |
| CN109357859B (en) | Dislocation adjusting mechanism, car coupler coupling test bed and test system thereof | |
| CN115320880A (en) | Automatic attitude-adjusting docking method for outer wing of airplane | |
| CN219053528U (en) | Flexible butt joint device for hollow cylinder cabin section | |
| CN113086877A (en) | Goods lifting equipment for construction machinery | |
| CN221290130U (en) | Assembling equipment for uranium hexafluoride container | |
| CN220430515U (en) | Automatic bullet hanging vehicle for large ship flight deck airplane | |
| CN220050138U (en) | Supporting portal frame | |
| CN111908369A (en) | Wheel sleeving machine of electric locomotive wheel drive unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |