CN215666754U - Fixed type pin shaft standard joint - Google Patents
Fixed type pin shaft standard joint Download PDFInfo
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- CN215666754U CN215666754U CN202122046039.5U CN202122046039U CN215666754U CN 215666754 U CN215666754 U CN 215666754U CN 202122046039 U CN202122046039 U CN 202122046039U CN 215666754 U CN215666754 U CN 215666754U
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Abstract
The utility model aims to provide a fixed pin shaft standard knot which comprises a standard knot device and a pin shaft connecting and locking device, wherein the standard knot device comprises four main limb columns of an angle steel structure, a reinforcing connecting rod, a beam rod, an upper connecting plate, a middle connecting plate, a lower connecting plate and the like, and the main limb columns of the standard knot adopt a large angle steel structure, so that the problems of structural safety, high installation cost and the like of the standard knot of a tower crane can be fundamentally solved, and the potential safety hazard of human factors on the connection of the standard knot is eliminated from the design aspect. The whole structure adopts a welding mode, so that the work of field assembly is avoided; adopt the round pin hub connection on festival and the connection of festival to the configuration interlocking safety pin, intensity and the bearing capacity of greatly increased itself simultaneously, thereby can be great avoid because the bolt that human error or inspection do not arrive the position and lead to is not hard up the risk, thoroughly solve the potential safety hazard that the standard festival is connected, easily realize intelligent manufacturing simultaneously, improve the market competitiveness of product.
Description
The technical field is as follows:
the utility model relates to the field of tower hoisting machinery, in particular to a fixed pin shaft standard knot, which mainly relates to the field of standard knot device processing of tower hoisting machinery; the technical scheme is applied for the priority of a tower crane standard knot and connecting device with the patent application number of 2020116241751.
Background art:
aiming at the current situation, in the existing tower crane device, two structural forms of standard knots are mainly adopted, one is an integrally fixed standard knot connected by bolts, and the standard knot is called a bolt fixing knot for short. The other is a sheet type standard section which can be divided into four and is in a pin shaft connection mode, the sheet type section is called a pin shaft sheet type section for short, and the other has advantages and disadvantages.
For the standard knot in the bolt connection form, the installation is convenient, but due to the characteristics of structural design, stress concentration is easily caused at the joint of the main limb due to the rapid change of the section, so that the base material of the main limb is cracked or the welding line is cracked, and major safety accidents are caused; in addition, due to the fact that the bolt connection mode is in the using process of the tower crane, the detection must be carried out according to corresponding national requirements, time and labor are wasted, and the influence of human factors is large, the common bolt must be pre-tightened by a large torque wrench, if the common bolt is not screwed in place or the detection is not in place, serious safety accidents are easily caused due to the fact that the bolt is sent, and the safety accidents often happen in reality. The sections of the sheet type standard sections are connected by the pin shaft, and after the pin shaft is connected in place, the inspection is not needed in the use process, so that the safety is guaranteed; however, because the single sheets are of the sheet-type distributed structure and are connected by large bolts, the single sheets need to be assembled on a construction site or a construction site, and in the actual construction process, experienced construction personnel are required to assemble joints, and professional installation tools, such as large torque wrenches, need to be equipped, and are also affected by human factors to a great extent, and the bolt connection between the single sheets is not tight due to non-professional or error in the assembling process, so that major safety accidents are caused; in addition, because the standard knot is the most numerous part among the structural parts of the tower crane, the workload is very large, along with the development of the society and the increasing shortage of labor force on a construction site, the assembling labor cost of the chip type standard knot is higher, the installation cost of the chip type standard knot is far higher than the transportation cost of the fixed type standard knot, and when the chip type standard knot is transported to the construction use site and then installed, a person with certain installation technical capability is required to install the standard knot, so that the safety of the crane frame after the standard knot is installed can be ensured.
For example, the Chinese patent publication No. CN204454349U discloses a 'plate-type tower section with an inclined channel and a platform', which comprises a frame body and a ladder stand arranged at a certain angle with the bottom plane of the frame body; the frame body comprises four upper horizontal struts, eight inclined web members, four horizontal web members and four main limb angle steels which are parallel to each other, wherein the top ends of the main limb angle steels are respectively provided with an inner part
The utility model has the advantages that the utility model comprises a fishplate, an outer fishplate and an outer short fishplate: the whole section can be split into a plurality of sub-pieces during transportation, so that the packaging is convenient, the occupied space is small, vehicles or containers are saved, and the transportation cost of customers is reduced; because the gravity center of the human body moves forwards when the person goes up and down through the channel with the angle inclination, the safety is ensured, the physical strength of the person is also kept, the person can go up and down easily and freely, and the safety of the person is improved through the protection of the safety guard ring. However, it can be seen from the technical solutions of the above-mentioned utility model that the standard knot formed by the standard knot still exists in the form of a sheet-type structure when being produced, prepared and delivered from factory, and it is still required to assemble or install the standard knot into a frame-type structure on the operation site to make a standard knot, i.e. it is also a sheet-type standard knot. This is still a sheet-like approach that requires assembly at the job site. On the other hand, for the existing standard section of the pin shaft, the height of the existing building is continuously increased, and under the condition that the standard section of the pin shaft is continuously increased, the strength and the bearing capacity of the standard section of the pin shaft are insufficient. The reinforcement is therefore load bearing.
Therefore, how to provide a fixed pin shaft standard knot, the main limb column of the standard knot adopts a large-scale angle steel structure, the problems of structural safety, high installation cost and the like of the standard knot of the tower crane can be fundamentally solved, and the potential safety hazard of human factors on the connection of the standard knot is eliminated from the design aspect. The joint adopts a fishplate form, the section of the main limb column changes and transitions slowly, no stress concentration exists when the main limb column is stressed, the strength and the bearing capacity of the main limb column are greatly increased, and after the pin shaft is connected in place, the pin shaft is not required to be checked in the using process, so that the safety is guaranteed; the welding mode is adopted on the whole structure, so that the field assembly work is avoided; the sections are connected through the pin shaft, and the interlocking safety pin is arranged, so that the risk of bolt looseness caused by human errors or incapability of checking positions can be greatly avoided, and the potential safety hazard of standard section connection is thoroughly solved. Meanwhile, intelligent manufacturing is easy to realize, production can be carried out through an automatic production line from single-limb column processing to integral welding, and interchangeability of single sections can be realized; and the assembly is simple.
The utility model content is as follows:
the utility model aims to provide a fixed pin shaft standard knot which comprises a standard knot device and a pin shaft connecting and locking device, wherein the standard knot device comprises four main limb columns of an angle steel structure, a reinforcing connecting rod, a beam rod, an upper connecting plate, a middle connecting plate, a lower connecting plate and the like, and the main limb columns of the standard knot adopt a large angle steel structure, so that the problems of structural safety, high installation cost and the like of the standard knot of a tower crane can be fundamentally solved, and the potential safety hazard of human factors for connecting the standard knot is eliminated in design. The whole structure adopts a welding mode, so that the work of field assembly is avoided; adopt the round pin hub connection on festival and the connection of festival to the configuration interlocking safety pin, intensity and the bearing capacity of greatly increased itself simultaneously, thereby can be great avoid because the bolt that human error or inspection do not arrive the position and lead to is not hard up the risk, thoroughly solve the potential safety hazard that the standard festival is connected, easily realize intelligent manufacturing simultaneously, improve the market competitiveness of product.
The utility model discloses a fixed pin shaft standard knot, which comprises a standard knot device and a pin shaft connecting and locking device, wherein the standard knot device comprises four main limb columns of an angle steel structure, a reinforcing connecting rod, a beam rod, an upper connecting plate, a middle connecting plate and a lower connecting plate, and the upper connecting plate, the middle connecting plate and the lower connecting plate are respectively and correspondingly and fixedly connected to the corresponding positions of the upper end part, the middle part and the lower end part of the side wall surface of the angle steel structure of the main limb columns; one end of any main limb column is provided with a pin shaft connecting and locking device, and the other end is correspondingly provided with a pin shaft connecting and locking device locking part matched with the pin shaft connecting and locking device;
the beam rod is horizontally and correspondingly connected to the middle connecting plate and the upper connecting plate on any two adjacent main limb columns or the corresponding positions of the main limb columns, and the reinforcing connecting rod is obliquely connected to the middle connecting plate and the upper connecting plate or the corresponding lower connecting plate on any two adjacent main limb columns on the same side or the corresponding positions of the main limb columns; the fixed standard section of the frame structure is formed by fixedly connecting a middle connecting plate, an upper connecting plate and a lower connecting plate which are respectively corresponding to the beam rod and the reinforcing connecting rod and are connected to the main limb column; or the fixed standard section of the frame-shaped frame structure is formed by fixedly connecting the corresponding positions of the upper end part, the middle part and the lower end part of the main limb column through the beam rod and the reinforcing connecting rod respectively;
the pin shaft connecting and locking device comprises a pin shaft locking unit and a safety interlocking unit; the pin shaft locking unit comprises a main limb column, a first pin shaft fixing plate, a second pin shaft fixing plate, a first fishtail pin shaft, a second fishtail pin shaft and a fishtail type connector, wherein a first pin shaft fixing plate hole and a second pin shaft fixing plate hole are respectively formed in one end of the first pin shaft fixing plate and one end of the second pin shaft fixing plate, the other end of the first pin shaft fixing plate and the other end of the second pin shaft fixing plate are fixedly connected to the outer side wall surface of an angle steel structure of the main limb column, and the fishtail type connector is correspondingly arranged on the inner side wall surface of the angle steel structure of the main limb column; the fishtail connector is arranged corresponding to the first pin shaft fixing plate and the second pin shaft fixing plate;
and one ends of the first fishtail pin shaft and the second fishtail pin shaft are respectively and correspondingly provided with a first pin shaft safety hole and a second pin shaft safety hole, and the first fishtail pin shaft passes through the first pin shaft fixing plate hole and the second fishtail pin shaft passes through the second pin shaft fixing plate hole and is correspondingly clamped on the fishtail connector, the first pin shaft fixing plate and the second pin shaft fixing plate respectively.
Preferably, a transverse reinforcing rib is connected between any reinforcing connecting rod and the main limb column connected with the reinforcing connecting rod along the horizontal direction, and the transverse reinforcing rib and the main limb column are fixedly connected at a vertical angle.
Further preferably, a vertical reinforcing rib is connected between any two adjacent reinforcing connecting rods which are in control connection with the same main limb column along the vertical direction, and the vertical reinforcing rib in control connection with the reinforcing connecting rod is parallel to the main limb column.
The locking part of the pin shaft connecting locking device is arranged at one end, far away from the locking part of the pin shaft connecting locking device, of the main limb column, a pin shaft locking reinforcing plate is arranged on the main limb column at one end of the locking part of the pin shaft connecting locking device, the pin shaft locking reinforcing plate is fixedly arranged at the corresponding position of the outer side wall surface of the angle steel structure of the main limb column 1 at the end of the locking part of the pin shaft connecting locking device, a pin shaft through hole is formed in the pin shaft locking reinforcing plate, corresponding parts of the pin shaft connecting locking device can be clamped in the pin shaft through holes in a matched mode through corresponding pin shafts, and the two fixing standard joints which are adjacent to each other up and down are mutually locked and tightly connected through the pin shaft connecting locking device and the pin shaft connecting locking device.
A fixed round pin axle standard festival, its fishtail formula connector include first fishtail plate body, second fishtail plate body, one side of first fishtail plate body and second fishtail plate body is sharp limit, corresponding another side is fish tail arc column structure, the perpendicular fixed connection in sharp limit looks of first fishtail plate body and second fishtail plate body, the angle steel limit of the main limb post that forms and angle steel structure matches the card and closes, on the fish head end of first fishtail plate body, second fishtail plate body respectively corresponding dislocation be equipped with first fishtail plate round pin shaft hole and second fishtail plate round pin shaft hole.
The safety interlocking unit comprises a first fishtail pin shaft, a second fishtail pin shaft, a safety pin and a cotter pin, wherein a first pin shaft safety hole is formed in one end of the first fishtail pin shaft, a second pin shaft safety hole is formed in one end of the second fishtail pin shaft, a safety protruding head is arranged at one end of the safety pin, and a safety pin hole is formed in the other end of the safety pin; the first fishtail pin shaft is correspondingly matched and clamped in the first pin shaft fixing plate hole and the first fishtail plate pin shaft hole, and the second fishtail pin shaft is correspondingly matched and clamped in the second pin shaft fixing plate hole and the second fishtail plate pin shaft hole; the safety pins are respectively clamped in the first pin shaft safety hole and the second pin shaft safety hole, and the cotter pin is clamped in the safety pin holes.
First fishplate round pin shaft hole and first round pin axle mounting plate pore phase-match correspond, second fishplate round pin shaft hole and second round pin axle mounting plate pore phase-match correspond.
The utility model discloses a fixed pin shaft standard knot, which adopts the standard knot structure, is a pin shaft connection and integrally fixed standard knot developed by integrating respective advantages and characteristics of a bolt fixed knot and a pin shaft sheet type standard knot aiming at the change of the actual use working condition of a tower crane and the pursuit of society on safety. And the problems of safe structure and high installation cost of the standard section of the tower crane are solved fundamentally, and the potential safety hazard of human factors on the connection of the standard section is eliminated from the design. The novel standard joint main limb column adopts a large-scale angle steel structure, the joint adopts a fishplate form, the section of the main limb column changes and transitions slowly, stress concentration does not exist when stress is applied, and after the pin shaft is connected in place, inspection is not needed in the use process, so that safety is guaranteed. Meanwhile, the four main limb columns 1 are welded into a whole through the web members in a welding mode on the whole structure, namely the main limb columns 1 are welded into a whole through the beam rods and the reinforcing connecting rods, so that the work of field assembly is avoided; the connection of the sections adopts a pin shaft connection locking device, namely a pin shaft connection mode, and is provided with an interlocking safety pin, namely a safety interlocking unit structure. The risk of bolt looseness caused by human error or incapability of checking is avoided, and the potential safety hazard of standard section connection is thoroughly solved. In addition, the pin shaft type fixed joint is easy to realize intelligent manufacturing in the production process, can be produced through an automatic production line from single-limb or single-limb column processing to integral welding, and can ensure the interchangeability of single joints.
Meanwhile, the novel pin shaft type fixing joint device also has the following technical advantages and characteristics:
firstly, relative bolt fastening festival: stress concentration is avoided in terms of structural stress, the service life of the standard joint is longer, and the large trend of environment-friendly and energy-saving development is met; the sections are connected by the pin shaft and are provided with the interlocking safety pin, so that the bolt loosening condition is avoided, and the safety and reliability are higher; in the use process of the tower crane, as no bolt is connected, a large amount of inspection work is reduced, and manpower and material resources are saved;
secondly, relative pin shaft sheet type section: the standard sections are integrally welded, so that the workload of on-site assembly is reduced, a large amount of labor cost is saved, and the on-site construction efficiency is improved; the assembling link of single-piece bolt connection is omitted, the condition that the bolt is loosened is avoided, and the bolt assembling device is safer and more reliable.
Third, can connect with the vertical reinforcement 23 and horizontal reinforcement 22 respectively along the vertical direction between arbitrary strengthening link or strengthening link and the main limb column 1 that is connected with it along the horizontal direction, so great strengthening the intensity of the standard festival, can improve the stack height of the standard festival effectively, the tower crane of the applicable high building uses.
Description of the drawings:
FIG. 1 is a schematic structural diagram of an embodiment of a fixed pin standard knot according to the present invention,
FIG. 2 is a schematic front view or a schematic side view of an embodiment of the present invention,
fig. 3 is a schematic structural view of a pin joint locking device according to an embodiment of the present invention,
figure 4 is a schematic top view of figure 3 showing the safety interlock device interlocked to the main limb post 1,
figure 5 is a schematic view of a safety interlock device according to one embodiment of the present invention,
figure 5 is a schematic view of the first fishtail pin 11 and the second fishtail pin 13 locked together by the safety pin 14 according to an embodiment of the utility model,
fig. 6 is a schematic view of a fish tail connector 12 according to an embodiment of the present invention,
fig. 7 is a schematic structural view of a fixed standard joint frame body in which a reinforcing connecting rod is connected to an upper connecting plate, a lower connecting plate and a vertical reinforcing rib according to an embodiment of the present invention;
in the figure: 1. the main limb column, the main limb column 1 adopts big angle steel, 103, a pin shaft locking unit connecting end part, 104, a pin shaft locking unit locking part, 2, a first reinforcing connecting rod, 3, a first beam rod, 4, a middle connecting plate, 5, a second reinforcing connecting rod, 6, a left upper connecting plate, 7, a second beam rod, 8, a right upper connecting plate, 9, a first pin shaft fixing plate, 901, a first pin shaft fixing plate hole, 10, a second pin shaft fixing plate, 1001, a second pin shaft fixing plate hole, 11, a first fishtail pin shaft, 1101, a first pin shaft safety hole, 12, a fishtail plate connector, 1201, a first fishtail plate body, 1202, a second fishtail plate body, 1203, a first fishtail plate pin shaft hole, 1204, a second fishtail plate pin shaft hole, 13, a second fishtail pin shaft, 1301, a second pin shaft safety hole, 14, a safety pin, 1401 safety pin nose, 1402, a safety pin hole, 15, a left lower pin shaft locking reinforcing plate, 1501. the left lower pin shaft hole, 16, left lower connecting plate, 17, right lower pin shaft locking reinforcing plate, 1701, right lower pin shaft hole, 18, first clamping groove, 19 second clamping groove, 20, split pin, 21, fixed standard knot, 22, transverse reinforcing rib, 23 and vertical reinforcing rib.
The specific implementation mode is as follows:
the utility model is described in further detail below with reference to a specific corresponding embodiment and the accompanying drawings.
As shown in fig. 1-2, the utility model discloses a fixed pin standard knot, which comprises a standard knot device and a pin connection locking device, wherein the standard knot device comprises four main limb columns 1 of an angle steel structure, a reinforcing connecting rod, a beam rod, an upper connecting plate, a middle connecting plate and a lower connecting plate, and the upper connecting plate, the middle connecting plate and the lower connecting plate are respectively and correspondingly and fixedly connected to the corresponding positions of the upper end part, the middle part and the lower end part of the side wall surface of the angle steel structure of the main limb column 1; one end of any main limb column 1 is provided with a pin shaft connection locking device, and the other end is correspondingly provided with a pin shaft connection locking device locking part matched with the pin shaft connection locking device;
the beam rods are horizontally and correspondingly connected to the middle connecting plate and the upper connecting plate on any two adjacent main limb columns 1 or the corresponding positions of the main limb columns, and the reinforcing connecting rods are obliquely connected to the middle connecting plate on any two adjacent main limb columns on the same side or the corresponding positions of the upper connecting plate or the corresponding lower connecting plate or the corresponding main limb columns; the fixed standard section of the frame structure is formed by fixedly connecting a middle connecting plate, an upper connecting plate and a lower connecting plate which are respectively corresponding to the beam rod and the reinforcing connecting rod and are connected to the main limb column; or the fixed standard section of the frame-shaped frame structure is formed by fixedly connecting the corresponding positions of the upper end part, the middle part and the lower end part of the main limb column through the beam rod and the reinforcing connecting rod respectively;
as shown in fig. 3-4, the pin connection locking device includes a pin locking unit and a safety interlocking unit; the pin shaft locking unit comprises a main limb column, a first pin shaft fixing plate, a second pin shaft fixing plate, a first fishtail pin shaft, a second fishtail pin shaft and a fishtail type connector, wherein a first pin shaft fixing plate hole and a second pin shaft fixing plate hole are respectively formed in one end of the first pin shaft fixing plate and one end of the second pin shaft fixing plate, the other end of the first pin shaft fixing plate and the other end of the second pin shaft fixing plate are fixedly connected to the outer side wall surface of an angle steel structure of the main limb column, and the fishtail type connector is correspondingly arranged on the inner side wall surface of the angle steel structure of the main limb column; the fishtail connector is arranged corresponding to the first pin shaft fixing plate and the second pin shaft fixing plate;
and one ends of the first fishtail pin shaft and the second fishtail pin shaft are respectively and correspondingly provided with a first pin shaft safety hole and a second pin shaft safety hole, and the first fishtail pin shaft passes through the first pin shaft fixing plate hole and the second fishtail pin shaft passes through the second pin shaft fixing plate hole and is correspondingly clamped on the fishtail connector, the first pin shaft fixing plate and the second pin shaft fixing plate respectively.
Preferably, as shown in fig. 2, a transverse reinforcing rib is connected between any reinforcing connecting rod and the main limb column connected with the reinforcing connecting rod along the horizontal direction, and the transverse reinforcing rib and the main limb column are fixedly connected at a vertical angle.
Preferably, a vertical reinforcing rib is connected between any two adjacent reinforcing connecting rods which are in control connection with the same main limb column along the vertical direction, and the vertical reinforcing rib in control connection with the reinforcing connecting rods is parallel to the main limb column.
Furthermore, the locking part of the pin shaft connecting and locking device is arranged at one end of the main limb column far away from the pin shaft connecting and locking device, a pin shaft locking reinforcing plate is arranged on the main limb column at one end of the locking part of the pin shaft connecting and locking device, the pin shaft locking reinforcing plate is fixedly arranged at the corresponding position of the outer side wall surface of the angle steel structure of the main limb column at the end of the locking part of the pin shaft connecting and locking device, a pin shaft through hole is formed in the pin shaft locking reinforcing plate, and the corresponding part of the pin shaft connecting and locking device can be clamped in the pin shaft through hole in a matched mode through the corresponding pin shaft, so that the two adjacent upper and lower fixed standard joints are mutually and tightly connected through the pin shaft connecting and locking part of the pin shaft connecting and locking device.
A fixed round pin axle standard festival, its fishtail formula connector include first fishtail plate body, second fishtail plate body, one side of first fishtail plate body and second fishtail plate body is sharp limit, corresponding another side is fish tail arc column structure, the perpendicular fixed connection in sharp limit looks of first fishtail plate body and second fishtail plate body, the angle steel limit of the main limb post that forms and angle steel structure matches the card and closes, on the fish head end of first fishtail plate body, second fishtail plate body respectively corresponding dislocation be equipped with first fishtail plate round pin shaft hole and second fishtail plate round pin shaft hole.
Preferably, the safety interlocking unit comprises a first fishtail pin shaft, a second fishtail pin shaft, a safety pin and a cotter pin, wherein a first pin shaft safety hole is formed in one end of the first fishtail pin shaft, a second pin shaft safety hole is formed in one end of the second fishtail pin shaft, a safety protruding head is arranged at one end of the safety pin, and a safety pin hole is formed in the other end of the safety pin; the first fishtail pin shaft is correspondingly matched and clamped in the first pin shaft fixing plate hole and the first fishtail plate pin shaft hole, and the second fishtail pin shaft is correspondingly matched and clamped in the second pin shaft fixing plate hole and the second fishtail plate pin shaft hole; the safety pins are respectively clamped in the first pin shaft safety hole and the second pin shaft safety hole, and the cotter pin is clamped in the safety pin holes.
First fishplate round pin shaft hole and first round pin axle mounting plate pore phase-match correspond, second fishplate round pin shaft hole and second round pin axle mounting plate pore phase-match correspond.
Example 1
As shown in fig. 1-7, in the fixed pin standard knot disclosed in the present invention, the angle steels of four main limb columns of the main limb column 1 all adopt angle steel structures with the same structural model, the reinforcing connecting rod includes a first reinforcing connecting rod 2 and a second reinforcing connecting rod 5, the beam rod refers to or includes a first beam rod 3 and a second beam rod 7, the upper connecting plate includes a left upper connecting plate 6 and a right upper connecting plate 8, the middle connecting plate includes a middle connecting plate 4, and the lower connecting plate includes a left lower connecting plate 16; the pin shaft plate comprises a left lower pin shaft plate 15 and a right lower pin shaft plate 17, a left lower pin shaft hole 1501 is formed in the left lower pin shaft plate 15, and a right lower pin shaft hole 1701 is formed in the right lower pin shaft plate 17 and is shown in fig. 1 and 2. As shown in fig. 1 and 2, the upper connecting plate 6 is connected to an inner sidewall surface of an angle iron structure of one main limb column 1, and the right upper connecting plate 8 corresponding to the upper connecting plate is correspondingly connected to an inner sidewall surface of an angle iron structure of another main limb column 1, which is located on the right side of one main limb column 1 connected with the left upper connecting plate 6, and is fixedly connected to the main limb column 1 connected with the right upper connecting plate 8 through the second beam rod 7, that is, two ends of four second beam rods 7 are respectively and correspondingly connected to the left upper connecting plate 6 and the right upper connecting plate 8 on the main limb column 1; for convenience of explanation, one end of the main limb column 1 provided with the left upper link plate 6 and the right upper link plate 8 is referred to as a pin locking unit connecting end portion 103, that is, one end of the main limb column 1 connected to the second cross beam 7 shown in fig. 1 and 2 is referred to as a pin locking unit connecting end portion 103, and one end of the main limb column 1 connected to the left lower link plate 16 is referred to as a pin locking unit mating locking portion 104.
As shown in fig. 1-2, a left upper connecting plate 6 is connected to an inner side wall surface of an angle steel structure at one end of any one main limb column 1, a middle connecting plate 4 is connected to the middle part of the angle steel structure, a left lower connecting plate 16 is connected to an inner side wall surface at the same side of the lower end of the angle steel structure, the side of the other corresponding main limb column 1 is set to be the right side, a right upper connecting plate 8 is symmetrically connected to the upper connecting plate connected to the upper end of the main limb column 1, and the middle connecting plates 4 on any adjacent main limb columns 1 are connected with four first cross beam rods 3 and four second cross beam rods 7 through the first cross beam rods 3; as shown in fig. 2, second reinforcing link 5 is connected at one end to intermediate link plate 4 on one main limb column 1 and at the other end to left link plate 6 on the other main limb column 1 on the same side as the latter, and first reinforcing link 2 is connected at one end to intermediate link plate 4 on the same main limb column 1 and at the other end to left lower link plate 16 on the other main limb column 1 provided with left lower link plate 16, and the other two main limb columns 1 are connected in the manner described above to form integral fixed standard knot 21. One end of each main limb column 1 connected with the left upper connecting plate 6 and the right upper connecting plate 8 is provided with an axis connecting and locking device, namely the end 103 of the connecting end part of the axis locking unit, and the other end corresponding to the axis connecting and locking device is provided with an axis connecting and locking part matched with the axis connecting and locking device, namely the locking part 104 of the axis locking unit. In order to strengthen the strength of the standard knot of the fixed pin shaft and save the production cost of the standard knot at the same time, a reinforcing rib is arranged between the main limb column 1 and the first reinforcing connecting rod 2 which are positioned at the locking part 104 end of the pin shaft locking unit; that is, as shown in fig. 2, one end of the transverse reinforcing bar 22 is fixedly connected to a corresponding position of the first reinforcing link 2, and the other end is fixedly connected to a corresponding position of the main limb column 1 fixedly connected to the first reinforcing link 2, while controlling the transverse reinforcing bar 22 to be vertically connected to the main limb column 1 fixedly connected thereto at an angle of 90 degrees.
As shown in fig. 3 and 4, one end of the first pin fixing plate 9 is fixedly welded to the outer side wall surface of the angle steel structure of the main limb column 1, and the second pin fixing plate 10 is fixedly welded to the other outer side wall surface of the angle steel structure of the main limb column 1, i.e. the second side edge of the main limb column; a first fishtail plate body 1201 forming the fishtail connector 12 is fixedly welded on the inner side wall surface of one side of an upper angle steel structure of the main limb column 1, a second fishtail plate body 1202 is fixedly welded on the inner side wall surface of the other side of the angle steel structure of the main limb column 1, a first pin shaft fixing plate hole 901 corresponds to a first fishtail plate pin shaft hole 1203, and meanwhile, a first fishtail pin shaft 11 is matched and clamped in the first pin shaft fixing plate hole 901 and the first fishtail plate pin shaft hole 1203; and second fishplate round pin axle hole 1204 and second round pin axle mounting plate hole 1001 phase-match are corresponding, and the card that second fishplate round pin axle 13 matches is worn in second fishplate round pin axle hole 1204 and second round pin axle mounting plate hole 1001, is equipped with first round pin axle insurance hole 1101 and second round pin axle insurance hole 1301 respectively in the corresponding one end of first fishplate round pin axle 11 and second fishplate round pin axle 13, insurance pin 14 is respectively in first round pin axle insurance hole 1101, second round pin axle insurance hole 1301, and cotter pin 20 card is located in insurance pinhole 1402 to form interlocking structure. A first clamping groove 18 is formed by a corresponding side surface between the first pin shaft fixing plate 9 and the first fishtail plate body 1201 of the fishtail connector 12, and a second clamping groove 19 is formed between the second pin shaft fixing plate 10 and a corresponding side surface of the second fishtail plate body 1202 of the fishtail connector 12, which are used for matched clamping pin shaft connection locking devices, namely, the locking devices are mutually locked and connected with the pin shaft connection locking devices at the connecting end part 103 ends of the pin shaft locking units on the adjacent main limb columns 1.
The utility model discloses a fixed standard hinge pin joint, wherein a hinge pin connecting and locking device between two adjacent fixed standard hinge pins 21 is connected with a hinge pin connecting and locking device locking part, namely a hinge pin locking unit connecting end part 103 is connected with a hinge pin locking unit locking part 104 of another fixed standard hinge pin 21: the first fishtail pin shaft 11 is sequentially inserted into the first pin shaft fixing plate hole 901, the right lower pin shaft hole 1701 and the first fishtail plate pin shaft hole 1203, the second fishtail pin 13 sequentially passes through the second pin fixing plate hole 1001, the other left lower pin hole 1501 and the second fishtail pin hole 1204, thus, two angle steel edges of the angle steel structure of the main limb column 1 are respectively and fixedly clamped in the first clamping groove 18 and the second clamping groove 19, then, the safety pin 14 is inserted into the first fishtail pin 11 and the corresponding first pin shaft safety hole 1101 and second pin shaft safety hole 1301, the cotter pin 20 is inserted into the safety pin hole 1402 on the safety pin 14, so as to ensure that the safety pin 14 cannot be separated from the first pin shaft safety hole 1101 and the second pin shaft safety hole 1301, and the adjacent upper and lower main limb columns 1 are mutually locked and connected by adopting the device, thereby realizing the interlocking tight connection installation of the fixed standard knot 21.
Example 2
The contents are the same as those described in example 1 and the above-described embodiments, except for the following description.
As shown in fig. 7, the connection structure adopted by the fixed standard knot 21 of the present embodiment is that four main limb columns 1 of the angle iron structure are connected with the reinforcing connecting rod and the beam rod, and directly and fixedly connected to the inner side walls corresponding to the angle iron of any two adjacent main limb columns 1, or fixedly connected to the inner side walls corresponding to the angle iron of any two adjacent main limb columns 1 through the upper connecting plate, the middle connecting plate and the lower connecting plate; the reinforcing connecting rods are in a zigzag structure and are fixedly connected to the inner side walls corresponding to the angle steels of any two adjacent main limb columns 1 directly or through an upper connecting plate and a lower connecting plate; meanwhile, one end of any main limb column 1 is provided with a pin shaft connecting and locking device, and the other end of the main limb column 1 is provided with a pin shaft connecting and locking device locking part correspondingly matched with the pin shaft connecting and locking device, and any two fixed standard joints 21 are installed in an interlocking and tight connection mode through the pin shaft connecting and locking device;
as shown in fig. 7, in this embodiment, a vertical reinforcing rib 23 is also provided between the main limb column 1 and the first reinforcing connecting rod 2 at the end of the locking part 104 of the pin locking unit; namely, a vertical reinforcing rib 23 is connected between any two adjacent first reinforcing connecting rods 2 connected to the same main limb column 1 along the vertical direction, and the vertical reinforcing rib 23 connected to the first reinforcing connecting rod 2 is controlled to be parallel to the main limb column 1. That is, the vertical reinforcing rib 23 is parallel to the main limb column 1, and one end of the vertical reinforcing rib is connected to a corresponding position of one first reinforcing connecting rod 2, and the other end of the vertical reinforcing rib is connected to a corresponding position of another first reinforcing connecting rod 2 adjacent to the vertical reinforcing connecting rod.
The utility model discloses a fixed type standard joint device for a pin shaft, which integrates the advantages and the characteristics of bolt fixed joint connection and pin shaft plate type joints of the existing standard joint of a tower crane. The novel standard joint main limb column adopts large-scale angle steel, the joint adopts a fishplate form, the section of the main limb column changes and transitions slowly, no stress is concentrated when the stress is applied, and after the pin shaft is connected in place, the inspection is not needed in the use process, so that the safety is guaranteed; the welding mode is adopted on the whole structure, four main limbs or main limb columns are welded into a whole through web members, namely the reinforcing connecting rods are connected into a whole, so that the work of field assembly is avoided; the sections are connected through the pin shaft, the interlocking safety pin is arranged, the risk of bolt looseness caused by human errors or incapability of checking positions is avoided, and potential safety hazards of standard section connection are thoroughly solved. In addition, the pin shaft type fixed knot can be easily manufactured intelligently in the production process, can be produced through an automatic production line from single-limb processing to integral welding, and can ensure the interchangeability of single-knot standard knots.
The description is only an overview of the utility model, and can be implemented according to the content of the description, which is only a preferred embodiment of the utility model, and not to limit the utility model in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the utility model. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.
Claims (7)
1. A fixed pin shaft standard joint comprises a standard joint device and a pin shaft connection locking device, wherein the standard joint device comprises four main limb columns (1) of an angle steel structure, a reinforcing connecting rod, a beam rod, an upper connecting plate, a middle connecting plate and a lower connecting plate, and the upper connecting plate, the middle connecting plate and the lower connecting plate are respectively and correspondingly and fixedly connected to the corresponding positions of the upper end part, the middle part and the lower end part of the side wall surface of the angle steel structure of the main limb columns (1); one end of any main limb column (1) is provided with a pin shaft connection locking device, and the other end is correspondingly provided with a pin shaft connection locking device locking part matched with the pin shaft connection locking device;
the cross beam is horizontally and correspondingly connected to a middle connecting plate and an upper connecting plate on any two adjacent main limb columns (1) or corresponding positions of the main limb columns (1), and the reinforcing connecting rod is obliquely connected to the middle connecting plate and the upper connecting plate or corresponding lower connecting plate on any two adjacent main limb columns (1) on the same side or corresponding positions of the main limb columns (1); the fixed standard section (21) of the frame structure is formed by fixedly connecting a middle connecting plate, an upper connecting plate and a lower connecting plate which are respectively corresponding to the beam rod and the reinforcing connecting rod and are connected to the main limb column (1); or the fixed standard knot (21) is fixedly connected with the corresponding positions of the upper end part, the middle part and the lower end part of the main limb column (1) through a beam rod and a reinforcing connecting rod respectively to form a frame structure;
the pin shaft connecting and locking device comprises a pin shaft locking unit and a safety interlocking unit; the pin shaft locking unit comprises a main limb column (1), a first pin shaft fixing plate (9), a second pin shaft fixing plate (10), a first fishtail pin shaft (11), a second fishtail pin shaft (13) and a fishtail type connector (12), wherein a first pin shaft fixing plate hole (901) and a second pin shaft fixing plate hole (1001) are respectively formed in one end of the first pin shaft fixing plate (9) and one end of the second pin shaft fixing plate (10), the other end of the first pin shaft fixing plate hole is fixedly connected to the outer side wall surface of an angle steel structure of the main limb column (1), and the fishtail type connector (12) is correspondingly arranged on the inner side wall surface of the angle steel structure of the main limb column (1); the fishtail connector (12) is arranged corresponding to the first pin shaft fixing plate (9) and the second pin shaft fixing plate (10);
one end of each of the first fishtail pin shaft (11) and the second fishtail pin shaft (13) is correspondingly provided with a first pin shaft safety hole (1101) and a second pin shaft safety hole (1301), and the first fishtail pin shaft (11) is correspondingly clamped on the fishtail connector (12), the first pin shaft fixing plate (9) and the second pin shaft fixing plate (10) respectively through a first pin shaft fixing plate hole (901) and a second fishtail pin shaft (13) through a second pin shaft fixing plate hole (1001).
2. A fixed pin standard knot according to claim 1, characterized in that a horizontal reinforcing rib (22) is connected between any reinforcing connecting rod and the main limb column (1) connected with the reinforcing connecting rod along the horizontal direction, and the horizontal reinforcing rib (22) and the main limb column (1) are fixedly connected with each other at a vertical angle.
3. A fixed pin standard knot according to claim 1, characterized in that a vertical reinforcing rib (23) is vertically connected between any two adjacent reinforcing connecting rods which are controlled to be connected to the same main limb column (1), and the vertical reinforcing rib (23) which is controlled to be connected to the reinforcing connecting rod is parallel to the main limb column (1).
4. The fixed standard joint of the pin shaft as claimed in claim 1, wherein the locking part of the pin shaft connecting and locking device is disposed at one end of the main limb column (1) far from the locking part of the pin shaft connecting and locking device, a pin shaft locking reinforcing plate is disposed on the main limb column (1) at one end of the locking part of the pin shaft connecting and locking device, the pin shaft locking reinforcing plate is fixedly disposed at a corresponding position on the outer side wall surface of the angle steel structure of the main limb column (1) at the locking part end of the pin shaft connecting and locking device, a pin shaft through hole is formed in the pin shaft locking reinforcing plate, and a corresponding part of the pin shaft connecting and locking device is fittingly engaged in the pin shaft through hole via a corresponding pin shaft, so that the two adjacent fixed standard joints (21) are interlocked and tightly connected via the pin shaft connecting and locking parts of the pin shaft connecting and locking device.
5. The fixed pin shaft standard knot as claimed in claim 1, wherein the fishtail connector (12) comprises a first fishtail plate body (1201) and a second fishtail plate body (1202), one side of the first fishtail plate body (1201) and the second fishtail plate body (1202) is a straight side, the other corresponding side is a fishtail arc-shaped structure, the straight sides of the first fishtail plate body (1201) and the second fishtail plate body (1202) are vertically and fixedly connected to form a fit with the angle steel side of the main limb column (1) of the angle steel structure, and a first fishtail plate pin shaft hole (1203) and a second fishtail plate pin shaft hole (1204) are respectively arranged on the fishhead ends of the first fishtail plate body (1201) and the second fishtail plate body (1202) in a correspondingly staggered manner.
6. The fixed pin shaft standard knot according to claim 1, wherein the safety interlocking unit comprises a first fishtail pin shaft (11), a second fishtail pin shaft (13), a safety pin (14) and a cotter pin (20), wherein a first pin shaft safety hole (1101) is formed in one end of the first fishtail pin shaft (11), a second pin shaft safety hole (1301) is formed in one end of the second fishtail pin shaft (13), a safety raised head (1401) is arranged at one end of the safety pin (14), and a safety pin hole (1402) is formed in the other end of the safety pin (14); the first fishtail pin shaft (11) is correspondingly matched and clamped in a first pin shaft fixing plate hole (901) and a first fishtail plate pin shaft hole (1203), and the second fishtail pin shaft (13) is correspondingly matched and clamped in a second pin shaft fixing plate hole (1001) and a second fishtail plate pin shaft hole (1204); the safety pin (14) is respectively clamped in the first pin shaft safety hole (1101) and the second pin shaft safety hole (1301), and the split pin (20) is clamped in the safety pin hole (1402).
7. The fixed pin standard knot of claim 5, wherein the first fishplate pin hole (1203) is matched with the first pin fixing hole (901) and the second fishplate pin hole (1204) is matched with the second pin fixing hole (1001).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2020116241751 | 2020-12-30 | ||
| CN202011624175.1A CN112661028A (en) | 2020-12-30 | 2020-12-30 | Tower crane standard festival and connecting device |
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| CN202011624175.1A Pending CN112661028A (en) | 2020-12-30 | 2020-12-30 | Tower crane standard festival and connecting device |
| CN202122046039.5U Active CN215666754U (en) | 2020-12-30 | 2021-08-27 | Fixed type pin shaft standard joint |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011624175.1A Pending CN112661028A (en) | 2020-12-30 | 2020-12-30 | Tower crane standard festival and connecting device |
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| CN113666277A (en) * | 2021-08-20 | 2021-11-19 | 山东中诚机械租赁有限公司 | Jacking system protection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU625033B1 (en) * | 1991-05-10 | 1992-06-25 | Redara Pty Ltd | Bungy jumping tower |
| CN202369307U (en) * | 2011-12-15 | 2012-08-08 | 中建二局第三建筑工程有限公司 | Tower crane standard section connecting pin shaft spacing and running preventing device |
| CN104439979B (en) * | 2014-12-10 | 2017-02-22 | 王智超 | Plate type standard knot machining technology |
| CN204454349U (en) * | 2015-03-06 | 2015-07-08 | 山东大汉建设机械有限公司 | Chip tower body with access ramp and platform saves |
| CN205332939U (en) * | 2015-09-30 | 2016-06-22 | 徐州建机工程机械有限公司 | Tower crane is with strengthening festival inspection frock |
| CN211423118U (en) * | 2019-11-19 | 2020-09-04 | 江苏中建达丰机械工程有限公司 | Steel bushing for preventing pin shaft from moving outwards |
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