CN109109874B

CN109109874B - Hanging seat for underframe equipment

Info

Publication number: CN109109874B
Application number: CN201810952719.3A
Authority: CN
Inventors: 曾要争; 邓锐; 李华丽; 张丽; 黄鹏; 李拥军
Original assignee: CRRC Nanjing Puzhen Co Ltd
Current assignee: CRRC Nanjing Puzhen Co Ltd
Priority date: 2018-08-21
Filing date: 2018-08-21
Publication date: 2021-11-12
Anticipated expiration: 2038-08-21
Also published as: CN109109874A; WO2020037773A1

Abstract

The invention relates to an underframe equipment hanging seat which comprises a hanging seat, an upper adjusting pad and an equipment supporting base plate, wherein the hanging seat is provided with a bottom plate for bearing the upper adjusting pad, the bottom plate is provided with an adjusting hole, the lower surface of the upper adjusting pad is matched with the upper surface of the bottom plate, the upper adjusting pad can be adjusted in a swinging mode in the transverse direction of a vehicle relative to the bottom plate, and the equipment supporting base plate is arranged on the upper adjusting pad of the adjacent hanging seat in a crossing mode. According to the underframe equipment hanging seat, the wedge-shaped gap (caused by the fact that the flatness of the equipment mounting seat is out of tolerance) can be eliminated by rotating the upper adjusting pad along the arc surface, the adjustment of the wedge-shaped adjusting pad is not needed, and the condition that the screw of the equipment mounting bolt is stressed only in the axial direction is ensured. And realize equipment and hang the seat standardization, improve production efficiency.

Description

Hanging seat for underframe equipment

Technical Field

The invention relates to an installation structure and an installation method of an underframe equipment hanger, belonging to the technical field of installation of rail transit vehicle equipment.

Background

At present, rail transit chassis equipment is mainly hung in three modes, namely chassis floor hanging, chassis cross beam hanging and chassis edge beam hanging.

The chassis floor is hung and is utilized transition to hang the seat and hang on floor C type groove (mainly indicate the aluminum alloy automobile body), and this mode of hanging can reduce floor rigidity, if equipment self is the vibration source, and the vibration can directly transmit the floor, influences the passenger travelling comfort.

The chassis equipment is of various types, the structural form difference is large, and when the requirement on the type of the equipment and the chassis installation interface is not strict, the chassis floor hanging or chassis beam hanging is more suitable to be adopted. But can lead to the equipment to hang the seat kind many, and the structural style is not unified. Along with scientific and technical development, modularization, standardization, simplification require more and more high, and chassis floor hangs and chassis crossbeam hangs and is unfavorable for improving design efficiency, production efficiency, does not also utilize the type of equipment fixing interface system.

The chassis boundary beam is hung and hung by using the equipment hanging seat, the uniform type of the installation interface of the chassis equipment is easy to realize, the production efficiency is improved, and the technical development direction is met. Even if the device is a vibration source, the vibration cannot be directly transmitted to the floor, and the influence on the comfort of passengers is small. But equipment hangs and can lead to equipment size grow (hang for chassis floor and chassis crossbeam) on the chassis boundary beam, and the plane degree between the equipment fixing seat is difficult to guarantee, leads to having the clearance between equipment fixing seat and the equipment hanging seat after the equipment fixing, and the clearance is inhomogeneous, need adjust or not adjust through purpose-built wedge gasket temporarily, and is great to production efficiency influence, and the wedge gasket is of many kinds, does not utilize the later maintenance, moreover because there is certain potential safety hazard in the wedge clearance.

Through search and discovery, the utility model patent CN 201613896U relates to chassis equipment floor and hangs, adopts solderless 'V' type structure, and the key technical characteristics are solderless, anticreep. The forging or casting molding is adopted, the welding quality is not required to be controlled, the fatigue performance is improved, the production cost of the equipment hanging seat is high, and the production period is long. In addition, the structure has poor universality, and once the structure cannot be adapted to all equipment installation interfaces, the structure needs to be redesigned and remanufactured.

The Chinese patent application CN 103693058A relates to a cross beam hanger of underframe equipment, does not need to be provided with an equipment hanging seat, and is mainly technically characterized in that the cross beam of the underframe is hung by a C-shaped groove, so that the anti-falling performance is not obvious. This hanging mode limitation is big, requires that automobile body chassis structure must set up crossbeam structure, and it is single to be suitable for the motorcycle type, and the commonality is poor.

The Chinese utility model patent CN 201151386Y relates to the chassis equipment boundary beam and hangs, and its equipment fixing method is similar to the invention, and the main technical characteristics are that equipment hangs the seat and is L-shaped steel sheet welded structure, have the anticreep function. But the material utilization rate of the equipment hanging seat is low, the working procedure is complex, the process cost is high, the product quality is not easy to ensure, and the like.

Disclosure of Invention

The invention aims to provide an underframe equipment hanging seat, which mainly aims at solving the problems in the prior art, realizes the standardization of the equipment hanging seat and improves the production efficiency.

In order to solve the technical problems, the invention provides an underframe equipment hanging seat, which is characterized in that: including hanging seat, last adjustment pad and equipment support backing plate, the hanging seat has the bottom plate that is used for bearing the weight of the adjustment pad, the bottom plate is equipped with the regulation hole, go up the lower surface and the bottom plate upper surface cooperation of adjustment pad, it can swing the regulation to go up the relative bottom plate of adjustment pad in the vehicle transverse direction, equipment support backing plate spanes and sets up on the last adjustment pad of adjacent hanging seat.

The invention also relates to an installation method of the chassis equipment, which is implemented by using the chassis equipment hanging seat and comprises the following steps:

step 1, fixing two hanging seats at intervals on an underframe boundary beam;

step 2, placing an upper adjusting pad on a bottom plate of the hanging seat;

step 3, arranging the equipment supporting base plate on the upper adjusting pad of the adjacent hanging seat in a crossing manner;

step 4, rotating and adjusting the position of the upper adjusting pad, eliminating a wedge-shaped gap between the equipment and the equipment supporting pad plate, and sequentially penetrating a bolt through the lower adjusting pad, the bottom plate of the hanging seat, the upper adjusting pad and the equipment supporting pad plate to fix the lower adjusting pad, the bottom plate of the hanging seat, the upper adjusting pad and the equipment supporting pad plate together;

and 5, dropping the underframe equipment on the equipment supporting base plate and fixing.

Furthermore, the invention relates to a rail vehicle, characterized in that: the chassis equipment hanging seat is provided.

Therefore, the adjustment in 4 directions of equipment installation can be realized through the transverse long round hole of the equipment hanging seat, the longitudinal long round hole of the equipment supporting base plate, the circular arc surface at the bottom of the equipment hanging seat and the upper adjusting pad. The upper surface of the upper adjusting cushion is parallel to the lower surface of the lower adjusting cushion, and the screw of the equipment mounting bolt is only stressed along the axial direction.

The invention has the following advantages:

1. realize the standardization of the equipment hanging seat and improve the production efficiency

This hang seat adopts aluminum alloy extrusion section bar, can once extrude tens meters length, then intercepts according to the design needs, and production efficiency is high. The standardization of the equipment hanging seat can be ensured, and the quality is stable.

The existing technology is bending welding after steel plate machining, has high requirements on machining technology, bending technology and welding technology, and needs to detect flaws of welding seams. Low material utilization rate, complex working procedures, high process cost and long production period.

2. Realize equipment hangs a high stability of quality of seat, reduces the quality risk

Because the hanging seat of the equipment is an extruded section, welding is not needed, and the hanging seat only needs to be cut according to design requirements. Can ensure the high uniformity of the overall dimension and the stable quality.

The existing technical equipment hanging seat is difficult to ensure the stable overall dimension and welding quality of each hanging seat due to welding after bending, and meanwhile, the risk of fatigue of welding seams exists.

3. The simplification of the equipment hanging seat is realized, and the design cost is reduced

All equipment can be installed by adopting the hanging seat, the adaptability is strong, and the integral type of the equipment hanging seat is completely realized. When the equipment installation seat is large in size, the distance between the two equipment hanging seats can be adjusted to adapt to equipment installation.

In the prior art, when the size of an equipment mounting seat is large and the opening of an existing hanging seat cannot be met, the equipment hanging seat needs to be redesigned, strength checking needs to be carried out, the design cost is increased, and the types of the equipment hanging seats are increased.

4. The equipment installation is simplified, and the assembly efficiency and the safety are improved

The lower rib plate (bottom plate) of the equipment hanging seat is an arc plate, when the equipment mounting seat causes the wedge-shaped gap due to the out-of-flatness (the wedge-shaped gap has randomness due to manufacturing errors), the upper adjusting pad can be rotated along the arc surface to eliminate the wedge-shaped gap, the adjustment of the wedge-shaped adjusting pad is not needed, meanwhile, the screw rod of the equipment mounting bolt can be ensured to be stressed only along the axial direction, and the assembly is simple.

The gap of the existing equipment hanging seat technology needs to be adjusted through a temporary specially-made wedge-shaped gasket. After the adjustment, the installation surfaces of the equipment installation seat and the equipment hanging seat are not parallel, so that the equipment installation bolt bears axial force and bending moment, certain potential safety hazards exist, the equipment installation difficulty is increased, the equipment installation efficiency is reduced, and the maintenance cost is increased. If the wedge-shaped gap is not adjusted, the gap is small and the bolt is loosened due to the fact that the train runs for a long time due to the existence of the gap.

5. Realize equipment hanging seat centralized purchasing and relieve purchasing pressure

The equipment hanging seat has the characteristics of standardization and simplification, all items can be intensively purchased and can be purchased in advance, the purchasing cost is reduced, and the purchasing pressure is relieved.

Drawings

Figure 1 is a side view of a undercarriage equipment hanger.

Fig. 2 is a schematic view of the structure of the hanging seat.

Fig. 3 is a schematic view of the installation of the hanging seat of the underframe equipment.

Detailed Description

The following explains an embodiment of the present invention with reference to the drawings.

As shown in fig. 1 to 3, the undercarriage equipment hanging seat includes a hanging seat 1, an upper adjusting pad 4, a lower adjusting pad 6 and an equipment supporting pad 5.

The hanging seat 1 is an aluminum alloy extruded section. The bottom rib plate (bottom plate) is arc-shaped and is used for adjusting a wedge-shaped gap generated during equipment installation. The vertical ribs and the horizontal ribs on the upper part are provided with rivet holes and are connected with the side beam 2 of the bottom frame through rivets. The hanging seat has two faces to be connected with the chassis boundary beam, improves the rigidity of equipment hanging seat by a wide margin. The bottom rib plate is provided with a transverse long round hole for enabling the upper adjusting pad 4 and the lower adjusting pad 6 to transversely move along the arc surface of the bottom rib plate (can be adjusted in a swinging mode in the transverse direction of the vehicle relative to the bottom plate) when the wedge-shaped gap is adjusted.

The lower surface of the lower adjusting cushion 4 is arc-shaped and has the same radius with the arc-shaped radius of the upper surface of the rib plate at the bottom of the hanging seat 1. The upper surface of the lower adjusting cushion 6 is arc-shaped and has the same radius with the arc-shaped lower surface of the rib plate at the bottom of the hanging seat 1. After the hanging seat of the underframe equipment is adjusted and fixed, the upper surface of the upper adjusting pad 4 is parallel to the lower surface of the lower adjusting pad 6, so that after the equipment is installed, a screw of a bolt for installing the equipment is only stressed by axial force and is not stressed by bending moment.

The hanging seat 1, the upper adjusting cushion 4 and the lower adjusting cushion 6 form a unit, and each equipment mounting seat needs two units for matching use during equipment mounting. The distance between the two units can be flexibly adjusted according to the size of the equipment mounting seat. Two in the middle of the equipment supporting base plate 5 are longitudinal long round holes for longitudinal adjustment of the equipment mounting seat.

The adjustment in 4 directions of equipment installation can be realized through the transverse long round hole of the equipment hanging seat, the longitudinal long round hole of the equipment supporting base plate, the circular arc surface at the bottom of the equipment hanging seat and the upper and lower adjusting pads.

In addition, the upper surface and the lower surface of the bottom rib plate can also adopt a spherical surface design for universal adjustment.

The method for installing the underframe equipment by using the underframe equipment hanging seat comprises the following steps:

step 1, riveting and fixing two hanging seats 1 on an underframe boundary beam 1 at intervals, wherein each equipment mounting seat needs to be provided with two equipment hanging seats, and the distance between the two hanging seats is determined according to the size of the equipment hanging seat;

2, placing upper adjusting pads 4 from two sides of the hanging seat 1, wherein the lower surfaces of the adjusting pads are arc-shaped and have the same radius as the arc-shaped radius of the upper surface of the rib plate at the bottom of the hanging seat;

step 3, arranging an equipment supporting base plate 5 on an upper adjusting pad 4 of an adjacent hanging seat in a crossing manner, wherein small holes at two ends of the equipment supporting base plate are threaded holes (or through holes which need to be matched with a gasket and a nut for use), and two middle small holes are longitudinal long round holes and are used for longitudinal adjustment of an equipment mounting seat;

step 4, adjusting the position of the upper adjusting pad 4 in a rotating manner, eliminating a wedge gap between the equipment and the equipment supporting pad (the equipment can be lifted to a certain height in advance, and the wedge gap between the equipment mounting surface and the equipment supporting pad is observed), sequentially penetrating a bolt 7 through the lower adjusting pad 6, a bottom rib plate of the hanging seat 1, the upper adjusting pad 4 and the equipment supporting pad 5, and fixing the lower adjusting pad 6, the upper surface of the upper adjusting pad 4 and the lower surface of the lower adjusting pad 6 are parallel, so that a screw of the equipment mounting bolt is only stressed in the axial direction;

and 5, dropping the underframe equipment on the equipment supporting base plate 5 and fixing the underframe equipment through the bolts 8.

In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides an underframe equipment hangs seat which characterized in that: the lifting device comprises a lifting seat, an upper adjusting pad and an equipment supporting base plate, wherein the lifting seat is provided with a bottom plate for bearing the upper adjusting pad, the bottom plate is provided with an adjusting hole, the lower surface of the upper adjusting pad is matched with the upper surface of the bottom plate, the upper adjusting pad can be adjusted in a swinging mode in the transverse direction of a vehicle relative to the bottom plate, and the equipment supporting base plate is arranged on the upper adjusting pad of the adjacent lifting seat in a crossing mode; the upper surface and the lower surface of the bottom plate are cambered surfaces, and the axis of the cambered surfaces is along the longitudinal direction of the vehicle.

2. The undercarriage equipment hanging seat of claim 1 further comprising: the upper surface of the lower adjusting pad is matched with the lower surface of the bottom plate, and the lower adjusting pad can be adjusted in a swinging mode in the transverse direction of the vehicle relative to the bottom plate.

3. The undercarriage equipment hanging seat of claim 1 further comprising: the adjusting holes are long round holes and are arranged along the transverse direction of the vehicle.

4. The undercarriage equipment hanging seat of claim 2 further comprising: the lower adjusting pad, the bottom plate of the hanging seat, the upper adjusting pad and the equipment supporting base plate are fixed through bolts, and the upper surface of the upper adjusting pad is parallel to the lower surface of the lower adjusting pad.

5. The undercarriage equipment hanging seat of claim 1 further comprising: the equipment support base plate is provided with oblong holes arranged in the longitudinal direction of the vehicle.

6. A rail vehicle, characterized in that: having the undercarriage equipment hanger of any one of claims 1-5.

7. A method for installing chassis equipment is characterized in that: mounting is achieved using the undercarriage equipment hanging seat of any of claims 1-5.

8. The chassis equipment mounting method as recited in claim 7, characterized by comprising the steps of:

step 1, fixing two hanging seats at intervals on an underframe boundary beam;

step 2, placing an upper adjusting pad on a bottom plate of the hanging seat;