CN110510480A - Car Frame Structure of Bottom-supported Heavy Duty Elevator - Google Patents

Abstract

The present invention relates to the structural technical field of machine-room-less elevators, in particular to the car frame structure of the bottom bracket type heavy-duty elevator, which includes a car floor and a car frame arranged on the car floor, and the car floor and the car frame are fixedly installed with The first car frame, the second car frame, and the third car frame are placed from front to back, and the bottom of the car floor is provided with the first car floor wheel set, the second car floor wheel set, the second car floor wheel set, The third car wheel set, the fourth car wheel set, the first car wheel set, the second car wheel set, the third car wheel set, the fourth car wheel set and the first car frame and the second car frame 3. The third car frame is arranged at intervals on the car floor. The present invention can meet the traction requirements of machine room-less freight elevators over 9 tons, so that the car is always kept in a superior balance state under heavy load. Its structure is stable and its operation is stable. Stable, high safety factor and excellent load-carrying performance.

Description

Car Frame Structure of Bottom-supported Heavy Duty Elevator

technical field

The invention relates to the structural technical field of machine-room-less elevators, in particular to the car frame structure of bottom bracket heavy-duty elevators.

Background technique

With the progress of society and the continuous development of industry, the demand for elevators in daily life for the vertical transportation of goods is increasing, and the demand for large-tonnage and large-car elevators in factories, warehouses and other occasions is also increasing. The car frame is a load-bearing platform structure used to carry passengers or goods after the car is installed, and it is one of the key links in the design of the elevator system. The quality of the design of the car frame directly affects the safe, stable and efficient operation of the elevator. At the same time, the design of the car frame is directly related to the rated load of the elevator and the utilization of the hoistway space.

For the car frame structure of the elevator, the structure in which the guide wheels are placed above the car roof is widely used at present, and this structure is mostly used in elevators with machine rooms. In the invention application number CN201820857927.0 disclosed in the Chinese patent literature, the patent technology named "heavy-duty elevator car frame structure" discloses a combination of the upper and lower beam structures of the car by using large channel steel and reinforcing plates. The lower beam at the bottom of the car is equipped with vertical car bottom fixing parts to improve the load resistance of the bottom of the car. Another type of large-load machine-roomless freight elevator needs to distribute the load-bearing device of the traction machine on the top floor. The car frame structure is to place the guide wheels on the bottom of the car, thus saving the space on the top floor. At present, the car frame structure with the guide wheels on the bottom of the car basically meets the needs of elevators with 2 to 9 tons of machine-room-less cargo. However, the car frame with the existing traction ratio cannot meet the needs of cargo elevators above 9 tons. However, because the height of the top floor of some specific buildings is not enough, and heavy goods need to be loaded vertically, only machine-room-less elevators can be used, and The machine room-less freight elevators on the market have different tonnages, and there is a huge test for the stability of the car frame that meets the requirements of large tonnage. In order to ensure the safe operation of the elevator, it is urgent to improve the existing car frame.

Contents of the invention

One of the purposes of the present invention is to address the defects and deficiencies of the prior art, to provide a bottom bracket heavy-duty elevator car with a stable structure, stable operation and high safety factor that can meet the needs of machine room-less freight elevators of more than 9 tons frame structure.

Technical scheme of the present invention is as follows:

The car frame structure of the bottom bracket type heavy-duty elevator includes a car floor and a car frame arranged on the car floor. The car floor and the car frame are fixedly installed with the first car frame and the second car frame placed from front to back The second compartment frame and the third compartment frame, the first compartment frame, the second compartment frame, and the third compartment frame are rectangular frame structures composed of upper beams, lower beams, and columns respectively, and the bottom of the car floor is provided with mutual The first car bottom wheel set, the second car bottom wheel set, the third car bottom wheel set, the fourth car bottom wheel set, the first car bottom wheel set, the second car bottom wheel set, the third car bottom wheel set The bottom wheel set, the fourth car floor wheel set, and the first car frame, the second car frame, and the third car frame are arranged at intervals on the car floor, and the first car floor wheel set, the second car floor wheel set, The third car floor wheel set and the fourth car floor wheel set are respectively composed of two left and right car floor wheels arranged on the same straight line.

Preferably, the first car floor wheel set, the second car floor wheel set, the third car floor wheel set, and the fourth car floor wheel set are symmetrically arranged based on the front, rear, left, and right midlines of the car floor.

Preferably, the car frame includes two connecting beams fixed to the left and right columns on the first frame, the second frame, and the third frame respectively, and a transverse frame is arranged between the ends of the two connecting beams. A fixed channel steel, a door machine beam parallel to the fixed channel steel is provided between the ends of the two connecting beams, and car door columns fixedly connected to the car floor are respectively provided at the ends of the connecting beams.

Preferably, the upper beam and the lower beam of the first box frame, the second box frame, and the third box frame are respectively composed of left channel steel and right channel steel clamping transverse connecting plates, and the upper beam and the lower beam Guide shoe seats are respectively installed at the ends of the car frame, and safety gears are installed on the lower beam of the second frame.

Preferably, the car floor includes a plurality of longitudinally parallel supporting channel steels, a plurality of horizontally parallel reinforcing channel steels are arranged between adjacent supporting channel steels, and the supporting channel steels intersect with the reinforcing channel steels A block matrix frame is formed, and a support steel plate is arranged above the frame composed of the support channel steel and the reinforcement channel steel.

Preferably, the car floor is formed by connecting two left and right symmetrical frames, and the supporting steel plate above the frame is formed by splicing no less than two plates.

Preferably, the upper beams of the first car frame, the second car frame, and the third car frame are provided with a longitudinal car roof fixing member, and the car roof fixing member is respectively connected with the first car frame, the second car The upper beams of the car frame and the third car frame are connected and fixed.

Preferably, the lower beams of the first car frame, the second car frame and the third car frame are provided with two longitudinal car bottom fixing parts, and the car bottom fixing parts are respectively connected with the first car frame and the second car frame. The lower beams of the second compartment frame and the third compartment frame are connected and fixed.

The beneficial effects of the present invention are: the car frame structure of the bottom-supporting heavy-duty elevator can meet the requirements for the car frame structure of the bottom-supporting heavy-duty elevator by setting four sets of car floor wheels intersecting with the three sets of lower beams on the car floor plate of the car frame, which can meet the requirements of the car frame structure for more than 9 tons. The traction requirements of the freight elevator in the machine room keep the car in a superior balance state under heavy load, so as to ensure the uniform force around the car frame and the stable and safe operation of the car frame, and this structure can avoid the The winding interference problem of the lower beam assembly caused by the multi-rail structure has a variety of winding methods, which helps to improve the flexibility of the car frame structure. In addition, three sets of car frames are respectively fixed on the car floor and the car frame. The car frame, car floor, and car frame are respectively connected and fixed to form a highly stable rectangular frame structure. It has a stable structure, stable operation, high safety factor and excellent load-bearing performance.

Description of drawings

Fig. 1 is the structural diagram of the car frame of the bottom support type heavy-duty elevator of the embodiment of the present invention;

Fig. 2 is a bottom view of the car frame structure of the bottom-mounted heavy-duty elevator according to the embodiment of the present invention;

Fig. 3 is a left view of the car frame structure of the bottom-mounted heavy-duty elevator according to the embodiment of the present invention;

Fig. 4 is a structural schematic diagram of the car floor and the car frame according to the embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1-4, the car frame structure of the bottom bracket type heavy-duty elevator in the embodiment of the present invention includes a car floor 1 and a car frame 2 arranged on the car floor 1. The car floor 1 The first box frame 31, the second box frame 32, and the third box frame 33 placed from front to back are fixedly installed on the car frame 2. The first box frame 31, the second box frame 32, and the third box frame The frame 33 is a rectangular frame structure composed of an upper beam 34, a lower beam 35, and a column 36 respectively. The upper beam 34 of the first box frame 31, the second box frame 32, and the third box frame 33 is provided with a longitudinal Car top fixing part 37, described car top fixing part 37 is respectively connected and fixed with the upper beam 34 of the first car frame 31, the second car frame 32, the third car frame 33, and the first car frame 31, the second car frame The lower beams 35 of the second compartment frame 32 and the third compartment frame 33 are provided with two longitudinal car bottom fixing parts 38, and the car bottom fixing parts 38 are respectively connected with the first car frame 31, the second car frame 32, the second car frame The lower beam 35 of the three-box frame is connected and fixed, and the use of the car top fixing part 37 and the car bottom fixing part 38 can improve the load resistance of the bottom of the car to avoid deformation of the car bottom and affect the use of the elevator, greatly improving the car frame. The bearing capacity, the upper beam 34 and the lower beam 35 of the first box frame 31, the second box frame 32, and the third box frame 33 are respectively composed of left channel steel and right channel steel sandwiching transverse connecting plates. The ends of the upper beam 34 and the lower beam 35 are respectively equipped with guide shoes 39, the lower beam 35 of the second car frame 32 is equipped with a safety gear 30, and the bottom of the car floor 1 is provided with parallel and The first car floor wheel set 41, the second car floor wheel set 2, the third car floor wheel set 43, the fourth car floor wheel set 44, the first car floor wheel set 41, and the second car floor wheel set 42 placed horizontally , the third car floor wheel set 43, the fourth car floor wheel set 44 and the first car frame 31, the second car frame 32, and the third car frame 33 are arranged at intervals on the car floor 1, and the first car floor The wheel set 41, the second car floor wheel set 42, the third car floor wheel set 43, and the fourth car floor wheel set 44 are respectively composed of two left and right car floor wheels arranged on the same straight line. 1. The four sets of car bottom wheel sets intersected with the three sets of lower beams can meet the traction requirements of machine-room-less freight elevators over 9 tons, so that the car can always maintain a superior balance under heavy loads, thereby Ensure the uniform force around the car frame and the stable and safe operation of the car frame.

Specifically, in this embodiment, the first car floor wheel set 41, the second car floor wheel set 42, the third car floor wheel set 43, and the fourth car floor wheel set 44 can be in the shape of a "bow" The winding structure makes the load on the entire car frame evenly distributed on the traction rope, which fully guarantees the stability and safety of the elevator car frame.

In this embodiment, the first car floor wheel set 41 , the second car floor wheel set 42 , the third car floor wheel set 43 , and the fourth car floor wheel set 44 are symmetrical on the basis of the front, rear, left, and right midlines of the car floor 1 Arranged in this way, the force on the surroundings of the car frame can be evenly distributed in this way, and a more stable running effect can be obtained.

In this embodiment, the car frame 2 includes two connecting beams 20 fixed to the left and right columns 36 on the first frame 31, the second frame 32, and the third frame 33, respectively, for strengthening The stability of the horizontal direction of the car door end provides a platform for the installation of the car door machine at the same time. A horizontal fixed channel steel 21 is arranged between the ends of the two connecting beams 20, and a horizontal fixed channel steel 21 is arranged between the ends of the two connecting beams 20. There is a door machine beam 22 parallel to the fixed channel steel 21, which can make the car frame form a relatively stable and reliable frame, thereby saving the auxiliary car pull rods, thereby reducing the material cost of the car frame structure. The connection The ends of the beams 20 are respectively provided with car door columns 23 fixedly connected with the car floor 1, which are used to strengthen the vertical stability and bearing capacity of the two ends of the fixed car frame car door.

In this embodiment, the car floor 1 includes a plurality of longitudinally parallel supporting channel steels 10, and a plurality of transversely parallel reinforcing channel steels 11 are arranged between adjacent supporting channel steels 10. Channel steel 10 and reinforced channel steel 11 intersect to form a block matrix frame 12, and above the frame 12 composed of supporting channel steel 10 and reinforced channel steel 11, there is a supporting steel plate 13, which strengthens the support of the bottom load of the car frame strength and safety.

Further, the car floor 1 described in this embodiment is formed by connecting two left and right symmetrical frames 12, and the supporting steel plate 13 above the frame 12 is formed by splicing no less than two plates, which effectively reduces the The volume of space occupied during packaging and transportation is flexible.

Through the above technical solution, the car frame structure of the bottom bracket heavy-duty elevator can avoid the problem of winding interference of the lower beam assembly caused by the multi-rail structure, and has a variety of winding methods, which helps to improve the flexibility of the car frame structure In addition, the three sets of car frames are respectively fixed on the car floor and car frame, and the three sets of car frames, car floor, and car frame are respectively connected and fixed to form a rectangular frame structure with high stability. Stable, high safety factor and excellent load-carrying performance.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related All technical fields are equally included in the scope of patent protection of the present invention.

Claims (8)

1. the Car frame structure of collet formula heavy duty elevator, described including car bottom plate and the sedan-chair frame being arranged in car bottom plate It is fixedly installed with the first compartment frame, the second compartment frame, third compartment frame placed from the front to the back on car bottom plate and sedan-chair frame, described first The rectangular frame structure that compartment frame, the second compartment frame, third compartment frame are made of upper beam, underbeam, column respectively, it is characterised in that: described Car bottom plate bottom is equipped with and is parallel to each other and the first laterally disposed car floor wheel group, the second car floor wheel group, third car floor wheel group, the 4th Car floor wheel group, the first car floor wheel group, the second car floor wheel group, third car floor wheel group, the 4th car floor wheel group and the first compartment frame, the second compartment Frame, third compartment the frame space crossings in car bottom plate are arranged, the first car floor wheel group, the second car floor wheel group, third car floor wheel Group, the 4th car floor wheel group are made of the car floor wheel of two left and right settings on the same line respectively.

2. the Car frame structure of collet formula heavy duty elevator as described in claim 1, it is characterised in that: the first car floor wheel Group, the second car floor wheel group, third car floor wheel group, the 4th car floor wheel group using car bottom plate all around middle line as benchmark symmetry arrangement.

3. the Car frame structure of collet formula heavy duty elevator as described in claim 1, it is characterised in that: the sedan-chair frame includes Two attachment beams fixed with the left and right sides column on the first compartment frame, the second compartment frame, third compartment frame respectively, two attachment beams It is equipped with lateral fixation channel steel between end, the door machine beam parallel with fixed channel steel, institute are equipped between the end of two attachment beams The end on attachment beam stated is respectively equipped with the gate column being fixedly connected with car bottom plate.

4. the Car frame structure of collet formula heavy duty elevator as claimed in claim 3, it is characterised in that: the first compartment frame, Second compartment frame, the upper beam of third compartment frame and underbeam are made of left channel steel and right channel steel clamping cross connecting plate respectively, and described is upper The end of beam and underbeam is separately installed with guide shoe seat, is equipped with safety tongs on the underbeam of the second compartment frame.

5. the Car frame structure of collet formula heavy duty elevator as described in claim 1, it is characterised in that: the car bottom plate includes A plurality of longitudinal direction support channel steel disposed in parallel, adjacent supports the reinforcement channel steel that a plurality of horizontally-parallel setting is equipped between channel steel, The support channel steel and reinforcement channel steel intersects to form Block matrix formula frame, the support channel steel and reinforcement channel steel composition Supporting steel plate is equipped with above frame.

6. the Car frame structure of collet formula heavy duty elevator as claimed in claim 5, it is characterised in that: the car bottom plate is by a left side Right two pieces of symmetrical frames are formed by connecting, and the frame upper support steel plate is formed by the board material splice for being no less than two pieces.

7. the Car frame structure of collet formula heavy duty elevator as described in claim 1, it is characterised in that: the first compartment frame, Second compartment frame, third compartment frame upper beam be equipped with the car top fixing piece of a longitudinal direction, the car top fixing piece is respectively with first Compartment frame, the second compartment frame, third compartment frame upper beam be connected and fixed.

8. the Car frame structure of collet formula heavy duty elevator as claimed in claim 7, it is characterised in that: the first compartment frame, Second compartment frame, third compartment frame underbeam be equipped with the car floor fixing piece of two longitudinal directions, the car floor fixing piece is respectively with first Compartment frame, the second compartment frame, third compartment frame underbeam be connected and fixed.