CN218141812U

CN218141812U - Shock attenuation formula driver's cabin lock post assembly

Info

Publication number: CN218141812U
Application number: CN202221671790.2U
Authority: CN
Inventors: 陈靖; 曹纯儒; 董朝闻; 耿平; 尹丽; 於德奎; 黄龙
Original assignee: Hubei Dayun Automobile Co Ltd
Current assignee: Hubei Dayun Automobile Co Ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-12-27
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses a shock attenuation formula driver's cabin lock post assembly, including support, shock attenuation formula lockpin and clearance compensation subassembly, the support can be fixed on the driver's cabin bottom, and the shock attenuation formula lockpin is fixed on the support, and the shock attenuation formula lockpin is used for connecting the spring bolt in the driver's cabin suspension, and clearance compensation subassembly is used for eliminating the clearance of spring bolt on the shock attenuation formula lockpin; the clearance compensation assembly comprises a left floating piece and a right floating piece, the left floating piece and the right floating piece can axially float on the lock pin, and the left floating piece and the right floating piece are used for clamping the lock tongue; when the cab is displaced and flees in the front-back direction during the running of the vehicle, the mechanism reduces the gap between the mechanism and the suspension of the cab, limits the displacement of the cab, and simultaneously can provide the buffer force in the running direction of the vehicle and weaken the displacement in the running direction, thereby improving the driving comfort of the vehicle.

Description

Shock attenuation formula driver's cabin lock post assembly

Technical Field

The patent of the utility model relates to a commercial car spare part field, especially a shock attenuation formula driver's cabin lock post assembly.

Background

Abnormal shaking of the vehicle in the idling or driving process can cause uncomfortable vibration to drivers and passengers in the vehicle, and the comfort of the vehicle and the driving experience of a user are seriously influenced, so that the sale of the vehicle is influenced. With the rapid development of the commercial vehicle industry and the increasing degree of the younger consumer groups, the attention of consumers on the driving comfort of vehicles is also higher and higher. How to improve the driving comfort of the vehicle and reduce the fatigue strength of the driver has become an important factor that must be considered by the designer.

At present, in the field of European commercial vehicles, air suspensions containing air springs and four-point full-floating damping suspension technologies are widely adopted for cab suspension, and in China, a host factory begins to imitate in recent years, and the popularization of the full-floating damping suspension technology becomes the development trend of the commercial vehicles. However, limited by an air suspension, a full-floating suspension structure, a cab bottom plate and a rear wall structure, the comprehensive popularization of the prior airbag damping and full-floating suspension technology cannot be realized, and meanwhile, through a large amount of experimental data verification, the advantages of the airbag or the full-floating suspension are more reflected in the vertical and left-right directions of the vehicle to absorb vibration energy, and the vibration isolation efficiency which is relatively approved by the market can be achieved. The defect of low vibration isolation rate of the cab suspension in the driving direction inevitably affects the comprehensive vibration isolation efficiency of the cab suspension, and the current industry can achieve 80% of vibration isolation rate at the leading level, so the research on the vibration isolation efficiency of the front and rear directions of the automobile cab suspension is particularly urgent.

Disclosure of Invention

The utility model provides a shock attenuation formula driver's cabin lock post assembly, the purpose is in order to solve the problem of auttombilism room suspension fore-and-aft direction vibration isolation efficiency.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a shock attenuation formula driver's cabin lock post assembly which characterized in that: the damping lock pin is used for connecting a lock tongue in a cab suspension, and the clearance compensation component is used for eliminating a clearance of the lock tongue on the damping lock pin; the clearance compensation assembly comprises a left floating piece and a right floating piece, the left floating piece and the right floating piece can axially float on the lock pin, and the left floating piece and the right floating piece are used for clamping the lock bolt.

The technical scheme is further limited, the support comprises an upper support and a lower support, the upper support is of a V-shaped bracket structure and is assembled at a longitudinal beam of a cab floor; the lower damping support is of a groove-shaped structure, pin holes are symmetrically formed in the lower damping support, and the pin holes are provided with damping type lock pins.

The technical scheme is further limited, the damping type lock pin comprises a pin shaft, a left damping part, a right damping part and a locking part, the left damping part and the right damping part can slide on the pin shaft, the left damping part and the right damping part are fixed in the two pin holes respectively, the left damping part and the right damping part play a damping role in the pin shaft, the locking part is connected with the free end of the pin shaft, and the locking part is used for locking the pin shaft.

The technical scheme is further limited, and the left damping part and the right damping part have the same structure; the left damping part comprises a limiting seat and a rubber damping block, a flanging part of the limiting seat is welded with a lower support in the support, the rubber damping block is fixed in the limiting seat, and the rubber damping block is used for jointing a locking part; the rubber shock absorption block in the shock absorption limiting part is attached to the limiting bulge on the head of the pin shaft.

The technical scheme is further limited, the locking piece comprises a locking nut and a back tightening nut, and the free end of the pin shaft is connected with the locking nut and the back tightening nut.

The technical scheme is further limited, and the left floating piece and the right floating piece have the same structure; the left floating part comprises a floating rubber block and a pressure spring, the floating rubber block and the pressure spring are in clearance fit with the rod part of the pin shaft, one end of the pressure spring is fixed in the floating rubber block, and the other end of the pressure spring abuts against the limiting seat; and the floating rubber blocks in the left floating piece and the right floating piece are used for clamping a lock tongue in a cab suspension.

The technical scheme is further limited, and the floating rubber blocks in the left floating piece and the right floating piece are in frustum shapes.

The utility model discloses beneficial effect: when the cab is displaced and flees in the front-back direction during the running of the vehicle, the mechanism reduces the gap between the mechanism and the suspension of the cab, limits the displacement of the cab, and simultaneously can provide buffer force in the running direction of the vehicle and weaken the displacement in the running direction, thereby improving the driving comfort of the vehicle; the mechanism has the advantages of simple structure, convenient operation and adjustment, easy processing, low cost and convenient operation for users; can effectively eliminate driver's cabin lock post assembly and driver's cabin rear suspension clearance, increase the driver's cabin suspension at the vehicle direction of travel shock attenuation effect.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

Fig. 2 is a schematic view of the structure of the middle support of the present invention.

Fig. 3 is a schematic view of the structure of the shock-absorbing lock pin of the present invention.

Fig. 4 is a schematic structural diagram of the middle gap compensation assembly of the present invention.

Fig. 5 is a usage state diagram of the present invention.

Detailed Description

As shown in fig. 1 and 5, a shock absorption type cab lock cylinder assembly comprises a support 1, a shock absorption type lock pin 2 and a clearance compensation component 3, wherein the support can be fixed on the bottom of a cab, the shock absorption type lock pin is fixed on the support, the shock absorption type lock pin is used for connecting a lock tongue 41 in a cab suspension 4, and the clearance compensation component is used for eliminating the clearance of the lock tongue on the shock absorption type lock pin; the clearance compensation assembly 3 comprises a left floating piece 31 and a right floating piece 32, the left floating piece and the right floating piece can axially float on the lock pin, and the left floating piece and the right floating piece are used for clamping the lock tongue;

as shown in fig. 2, the support 1 comprises an upper support 11 and a lower support 12, wherein the upper support is of a V-shaped bracket structure and is assembled at a cab floor longitudinal beam; the lower damping support is of a groove-shaped structure, pin holes 13 are symmetrically formed in the lower damping support, and the pin holes are provided with damping type lock pins; the structure is simple, the production cost is low, and the light weight is facilitated;

as shown in fig. 3, the shock-absorbing type locking pin 2 comprises a pin 21, a left shock-absorbing part 22, a right shock-absorbing part 23 and a locking part 24, wherein the left shock-absorbing part and the right shock-absorbing part can slide on the pin, the left shock-absorbing part and the right shock-absorbing part are respectively fixed in two pin holes, the left shock-absorbing part and the right shock-absorbing part have a shock-absorbing effect on the pin, the locking part is connected with the free end of the pin, and the locking part is used for locking the pin; the structure can eliminate the impact force of the pin shaft in the axial direction and the radial direction, and improves the driving comfort;

as shown in fig. 4, the left and right

shock absorbing members

22 and 23 have the same structure; the left damping part comprises a limiting seat 221 and a rubber damping block 222, a flanging part of the limiting seat is welded with a lower support in the support, the rubber damping block is fixed in the limiting seat, and the rubber damping block is used for jointing a locking part; the rubber shock absorption block in the shock absorption limiting part is attached to the limiting bulge on the head part of the pin shaft; the structure is simple, the production cost is low, and the assembly and the maintenance are convenient;

as shown in fig. 4, the locking member 24 includes a locking nut 241 and a back nut 242, and the free end of the pin is connected with the locking nut and the back nut; the structure is simple, the production cost is low, and the anti-loosening effect is good;

as shown in fig. 4, the left floating member 31 and the right floating member 32 have the same structure; the left floating part comprises a floating rubber block 311 and a pressure spring 312, the floating rubber block and the pressure spring are in clearance fit with the rod part of the pin shaft, one end of the pressure spring is fixed in the floating rubber block, and the other end of the pressure spring abuts against the limiting seat; the floating rubber blocks in the left floating piece and the right floating piece are used for clamping a lock tongue in cab suspension; the structure is simple, the production cost is low, and the assembly and the maintenance are convenient;

as shown in fig. 4, the floating rubber blocks in the left floating member 31 and the right floating member 32 are frustum-shaped; when the cab falls to be installed, the floating piece with the conical structure has a guiding effect, the cab is guided to slide along the U-shaped groove of the lock tongue, the phenomenon of inclination of the cab falling due to suspension assembly or welding errors of the cab is eliminated, and the centering of the cab falling is ensured.

The utility model discloses theory of operation: as shown in figure 5, rely on driver's cabin self weight during the use, make the spring bolt in the driver's cabin suspension promote conical floating rubber block, make floating rubber block take place the displacement at the round pin epaxial to make cylindrical helical compression spring take place to warp, the compression of compression spring produces reverse effort to spring bolt 41 in the driver's cabin suspension 4, makes the floating rubber block of both sides eliminate with the clearance of spring bolt and produce the clamp force, compresses tightly the round pin axle through the locking mechanism in the driver's cabin suspension this moment, and is spacing to driver's cabin Z orientation. When the cab moves forwards and backwards, the pressure spring generates elastic deformation along with the displacement of the vehicle body and generates reaction force on the cab to weaken the amplitude of the cab in the driving direction of the vehicle, so that the comfort of the vehicle in the driving or idling state is improved. The cab suspension as shown in fig. 4 is a rear suspension in the suspension system.

The utility model discloses the innovation point: the cab lock column assembly is additionally provided with a separated floating part on the basis of the traditional structure, and the separated floating part can automatically compensate the assembly clearance with the rear suspension of the cab; the conical floating rubber block in the floating piece can guide the falling of the cab; the rubber damping block, the floating rubber block and the pressure spring in the cab lock cylinder assembly can effectively decompose the vibration damping efficiency of the cab suspension assembly on the horizontal direction, and effectively solve the problem of poor vibration isolation effect of the cab suspension in the vehicle running direction; the elastic structure is added in the vehicle running direction, an idea is provided for improving the vibration isolation efficiency of the commercial vehicle suspension, and the market competitiveness and the user satisfaction of the vehicle are improved. The whole structure is simple in process, convenient to operate and obvious in improvement effect; the local dimensions, the detailed state change, the insubstantial differences and the related product functions are protected by the patent, and other parts which are not described are the known technology in the industry.

Claims

1. The utility model provides a shock attenuation formula driver's cabin lock post assembly which characterized in that: the damping lock pin is used for connecting a lock tongue in a cab suspension, and the clearance compensation component is used for eliminating a clearance of the lock tongue on the damping lock pin; the clearance compensation assembly comprises a left floating piece and a right floating piece, the left floating piece and the right floating piece can axially float on the lock pin, and the left floating piece and the right floating piece are used for clamping the lock bolt.

2. The shock absorbing cab lock cylinder assembly of claim 1, wherein: the support comprises an upper support and a lower support, the upper support is of a V-shaped bracket structure and is assembled at a longitudinal beam of a bottom plate of the cab; lower damping support is the cell type structure, and the last symmetry of lower damping support is equipped with the pinhole, and the pinhole is with assembly shock attenuation formula lockpin.

3. A shock absorbing cab lock cylinder assembly according to claim 1 or 2, wherein: the damping type locking pin comprises a pin shaft, a left damping part, a right damping part and a locking part, wherein the left damping part and the right damping part can slide on the pin shaft, the left damping part and the right damping part are respectively fixed in two pin holes, the left damping part and the right damping part have a damping effect on the pin shaft, the locking part is connected with the free end of the pin shaft, and the locking part is used for locking the pin shaft.

4. The shock absorbing cab lock cylinder assembly of claim 3, wherein: the left shock absorption part and the right shock absorption part have the same structure; the left damping part comprises a limiting seat and a rubber damping block, the flanging part of the limiting seat is welded with the lower support in the support, the rubber damping block is fixed in the limiting seat, and the rubber damping block is used for fitting the locking part.

5. The shock absorbing cab lock cylinder assembly of claim 4, wherein: the retaining member comprises a locking nut and a back nut, and the free end of the pin shaft is connected with the locking nut and the back nut.

6. The shock absorbing cab lock cylinder assembly of claim 3, wherein: the left floating piece and the right floating piece have the same structure; the left floating part comprises a floating rubber block and a pressure spring, the floating rubber block and the pressure spring are in clearance fit with the rod part of the pin shaft, one end of the pressure spring is fixed in the floating rubber block, and the other end of the pressure spring abuts against the limiting seat; and the floating rubber blocks in the left floating piece and the right floating piece are used for clamping a lock tongue in a cab suspension.

7. The shock absorbing cab lock cylinder assembly of claim 6, wherein: the floating rubber blocks in the left floating piece and the right floating piece are in frustum shapes.