CN215361584U - Pipe beam type cab suspension rear suspension assembly - Google Patents
Pipe beam type cab suspension rear suspension assembly Download PDFInfo
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- CN215361584U CN215361584U CN202120646189.7U CN202120646189U CN215361584U CN 215361584 U CN215361584 U CN 215361584U CN 202120646189 U CN202120646189 U CN 202120646189U CN 215361584 U CN215361584 U CN 215361584U
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- rear suspension
- cab
- hydraulic lock
- suspension device
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Abstract
The utility model discloses a pipe beam type cab suspension rear suspension assembly which comprises a cross beam, a left rear suspension device, a right rear suspension device and a height valve assembly, wherein the left rear suspension device is arranged on the left side of the cross beam; the cross beam comprises a straight section and a bending section; the left rear suspension device and the right rear suspension device are symmetrically arranged at two ends of the cross beam; the left rear suspension device comprises a lower support, an air spring shock absorber assembly, a locking bracket assembly and a hydraulic lock assembly; the lower support is fixedly connected to the bending section; the hydraulic lock assembly is hinged to the straight section; the air spring shock absorber assembly is hinged to the lower support and the hydraulic lock assembly; the top end of the locking support assembly is fixedly connected with a cab, and the bottom end of the locking support assembly is connected with the hydraulic lock assembly in a locking mode when the cab falls back; the altitude valve assembly is fixedly connected between the hydraulic lock assembly at one end of the cross beam and the lower support; the locking support assembly is provided with a guide cone. The rear suspension assembly has the characteristic of being easy to lock, and the problem that the locking bracket is difficult to lock in the process of falling back of a cab can be solved through the guide cone.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to a tubular beam type cab suspension rear suspension assembly.
Background
With the development of the transportation industry and the progress of science and technology in China, the requirement of people on the comfort of heavy trucks is higher and higher. At present, domestic main trucks all adopt rear suspension devices with helical springs or air springs, and the structural form can attenuate the vibration transmitted to a cab by a frame, so that the comfort of the cab is improved. However, with the accumulated error of the cab components, the locking bracket is difficult to lock in the process of falling the cab, and the like, so that the driving safety is endangered.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a tubular beam type cab suspension rear suspension assembly, which has the characteristic of easy locking, and the problem of difficult locking of a locking bracket in the cab falling back process can be solved through an additional guide cone.
The utility model adopts the following specific technical scheme:
a pipe beam type cab suspension rear suspension assembly comprises a cross beam, a left rear suspension device, a right rear suspension device and a height valve assembly;
the cross beam comprises a straight section and bending sections arranged at two ends of the straight section;
the left rear suspension device and the right rear suspension device are structurally and symmetrically arranged at two ends of the cross beam; the left rear suspension device comprises a lower support, an air spring shock absorber assembly, a locking support assembly and a hydraulic lock assembly; the lower support is fixedly connected to one end, away from the straight section, of the bending section and is used for fixedly connecting a frame; the hydraulic lock assembly is hinged to one end of the straight section; the air spring shock absorber assembly is hinged between the lower support and the hydraulic lock assembly; the top end of the locking support assembly is fixedly connected with a cab, and the bottom end of the locking support assembly is connected with the hydraulic lock assembly in a locking mode when the cab falls back;
the altitude valve assembly is fixedly connected between the hydraulic lock assembly at one end of the cross beam and the lower support;
the locking support assembly is provided with two guide cones for guiding the locking support, and the guide cones are of a circular truncated cone structure.
Still further, the altimeter valve assembly is provided with an air tube in communication with the air spring damper assembly for controlling the altitude of the cab in an equilibrium position by adjusting the length of an altimeter valve pull rod of the altimeter valve assembly.
Furthermore, the hydraulic lock assembly is communicated with an oil circuit of a hydraulic lifting cylinder of the cab and is provided with a hydraulic lock closing state signal line.
Furthermore, lifting lugs are arranged at the top end and the bottom end of the air spring shock absorber assembly, and the air spring shock absorber assembly is connected to the lower support and the hydraulic lock assembly through the lifting lugs, bolts penetrating through the lifting lugs and nuts in threaded fit with the bolts.
Furthermore, a rubber bushing is embedded in the lifting lug.
Furthermore, a rubber bushing is arranged in the pin shaft of the locking bracket assembly.
Furthermore, the cross beam, the hydraulic lock assembly and the lower support are connected through a bolt and a nut which are matched through threads.
Has the advantages that:
the pipe beam type cab suspension rear suspension assembly is provided with a left rear suspension device and a right rear suspension device which are symmetrical at two ends of a cross beam, and the left rear suspension device and the right rear suspension device respectively comprise a lower support, an air spring shock absorber assembly, a locking bracket assembly and a hydraulic lock assembly; the locking support assembly is provided with two guide cones which are used for guiding the locking support, the guide cones are of a circular truncated cone structure, the locking support can smoothly enter an opening of a hydraulic lock under the guiding action of the guide cones, the problem that the locking support is difficult to lock is solved, and the safety and the comfort of a vehicle are improved.
Drawings
FIG. 1 is a schematic structural view of a tubular beam cab suspension rear suspension assembly of the present invention;
FIG. 2 is a schematic view of the locking bracket assembly and the hydraulic lock assembly of FIG. 1.
The device comprises a cross beam 1, a height valve assembly 2, a lower support 3, an air spring shock absorber assembly 4, a locking support assembly 5, a hydraulic lock assembly 6, a straight section 11, a bent section 12 and a guide cone 51
Detailed Description
The utility model is described in detail below by way of example with reference to the accompanying drawings.
The utility model provides a pipe beam type cab suspension rear suspension assembly, which comprises a cross beam 1, a left rear suspension device, a right rear suspension device and a height valve assembly 2, wherein the structure of the rear suspension assembly is shown in figure 1; the crossbeam 1 comprises a straight section 11 and bending sections 12 arranged at two ends of the straight section 11, the crossbeam 1 comprises the straight section 11 positioned in the middle and the bending sections 12 positioned at two ends of the straight section 11, the bending sections 12 at two ends are symmetrically arranged, and the straight section 11 and the bending sections 12 are integrally formed; the left rear suspension device and the right rear suspension device are structurally and symmetrically arranged at two ends of the cross beam 1, as shown in the structure of fig. 1, the left rear suspension device is arranged at one end of the cross beam 1 at the left side of the page, the right rear suspension device is arranged at the other end of the cross beam 1 at the right side of the page, and the left rear suspension device and the right rear suspension device are in a left-right symmetrical structure; the left rear suspension device comprises a lower support 3, an air spring shock absorber assembly 4, a locking support assembly 5 and a hydraulic lock assembly 6; the right rear suspension device also comprises a lower support 3, an air spring shock absorber assembly 4, a locking bracket assembly 5 and a hydraulic lock assembly 6; the lower support 3 is fixedly connected to one end of the bending section 12, which is far away from the straight section 11, and is used for fixedly connecting a frame; the lower support 3 can be fixedly connected to the bending section 12 through bolts and nuts, and can also be riveted to the bending section 12 through rivets; the hydraulic lock assembly 6 is hinged to one end of the straight section 11, and the hydraulic lock assembly 6 is hinged to the straight section 11 through a bolt and a nut; the air spring shock absorber assembly 4 is hinged between the lower support 3 and the hydraulic lock assembly 6, the top end of the air spring shock absorber assembly 4 is hinged to the hydraulic lock assembly 6 through a bolt and a nut, and the bottom end of the air spring shock absorber assembly 4 is hinged to the lower support 3 through a bolt and a nut; the top end of the locking support assembly 5 is fixedly connected with a cab, and the bottom end of the locking support assembly is connected with the hydraulic lock assembly 6 in a locking mode when the cab falls back; the hydraulic lock of the hydraulic lock assembly 6 is provided with an open slot and a lock hook arranged at the opening of the open slot;
the altitude valve assembly 2 is fixedly connected between a hydraulic lock assembly 6 at one end of the cross beam 1 and the lower support 3; a height valve assembly 2 is arranged at the left end or the right end of the beam 1, namely, the height valve assembly 2 is arranged at one end of the beam 1, and the top end of the height valve assembly 2 is fixedly connected to a hydraulic lock assembly 6 and the bottom end of the height valve assembly is fixedly connected to the lower support 3;
the locking bracket assembly 5 is provided with two guide cones 51 for guiding the locking bracket, and the guide cones 51 are in a circular truncated cone structure.
The pipe beam type cab suspension rear suspension assembly is provided with a left rear suspension device and a right rear suspension device which are symmetrical at two ends of a cross beam 1, and the left rear suspension device and the right rear suspension device respectively comprise a lower support 3, an air spring shock absorber assembly 4, a locking bracket assembly 5 and a hydraulic lock assembly 6; locking support assembly 5 is provided with two guide cones 51 that are used for leading the locking support to guide cones 51 are round platform shape structure, and the guide effect through guide cones 51 makes the opening that the locking support can get into the hydraulic lock smoothly, can improve the problem that the locking support goes into the lock difficulty through the guide cones 51 that add back to the driver's cabin in-process, and then improves the security and the travelling comfort of vehicle.
Meanwhile, one end of the hydraulic lock assembly 6 is hinged with the cross beam 1, so that swinging motion can be realized, the motion track of the rear suspension device can be controlled, and the motion stability of the cab is improved; the crossbeam 1 is fixedly connected with the lower supports 3 at two ends, and the left end and the right end of the rear suspension device can be connected into a whole, so that the rigidity of the rear suspension assembly is increased.
On this basis, in order to further make the locking bracket easily enter the lock, on the basis of the prior art, when the hydraulic lock is selected, the hydraulic lock with larger tolerance (the opening of the hydraulic lock) is selected, so that the locking bracket can more easily enter the opening of the hydraulic lock.
In one embodiment, the altitude valve assembly 2 is provided with an air tube (not shown) in communication with the air spring damper assembly 4 for controlling the height of the cab in the equilibrium position by adjusting the length of an altitude valve lever (not shown) of the altitude valve assembly 2.
Specifically, the hydraulic lock assembly 6 is communicated with an oil path of a hydraulic lift cylinder (not shown in the figure) of the cab, and is provided with a hydraulic lock closed state signal line (not shown in the figure); when the cab is turned over, the hydraulic lock of the hydraulic lock assembly 6 can be opened in a linkage manner; when the cab falls back, the hydraulic lock can output a warning signal when not locked, and the safety is improved.
In order to facilitate the installation of the air spring damper assembly 4, lifting lugs (not shown in the figure) are arranged at the top end and the bottom end of the air spring damper assembly 4, and are connected to the lower support 3 and the hydraulic lock assembly 6 through the lifting lugs, bolts penetrating through the lifting lugs and nuts in threaded fit with the bolts, so that the lifting lug at the top end of the air spring damper assembly 4 is hinged to the hydraulic lock assembly 6 through the bolts and the nuts, and the lifting lug at the bottom end of the air spring damper assembly 4 is hinged to the lower support 3 through the bolts and the nuts. In order to reduce abnormal noise at the joint of the air spring damper assembly 4, a rubber bushing (not shown in the figure) is embedded in the lifting lug, and axial deformation of the lifting lug can be counteracted through the rubber bushing.
On the basis of the various embodiments, a rubber bushing (not shown in the figures) is arranged in the pin shaft of the locking bracket assembly 5, and the accumulated error between the left rear suspension device and the cab and the accumulated error between the right rear suspension device and the cab can be offset through the deformation of the rubber bushing, so that the locking bracket can be smoothly locked.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A pipe beam type cab suspension rear suspension assembly is characterized by comprising a cross beam, a left rear suspension device, a right rear suspension device and a height valve assembly;
the cross beam comprises a straight section and bending sections arranged at two ends of the straight section;
the left rear suspension device and the right rear suspension device are structurally and symmetrically arranged at two ends of the cross beam; the left rear suspension device comprises a lower support, an air spring shock absorber assembly, a locking support assembly and a hydraulic lock assembly; the lower support is fixedly connected to one end, away from the straight section, of the bending section and is used for fixedly connecting a frame; the hydraulic lock assembly is hinged to one end of the straight section; the air spring shock absorber assembly is hinged between the lower support and the hydraulic lock assembly; the top end of the locking support assembly is fixedly connected with a cab, and the bottom end of the locking support assembly is connected with the hydraulic lock assembly in a locking mode when the cab falls back;
the altitude valve assembly is fixedly connected between the hydraulic lock assembly at one end of the cross beam and the lower support;
the locking support assembly is provided with two guide cones for guiding the locking support, and the guide cones are of a circular truncated cone structure.
2. The tube beam cab suspension rear suspension assembly of claim 1 wherein said altimeter valve assembly is provided with an air tube in communication with said air spring damper assembly for controlling the height of said cab in an equilibrium position by adjusting the length of an altimeter valve pull rod of said altimeter valve assembly.
3. The tubular beam cab suspended rear suspension assembly of claim 1, wherein the hydraulic lock assembly is in communication with an oil circuit of a hydraulic lift cylinder of the cab and is provided with a hydraulic lock closed state signal line.
4. The tubular beam cab suspension rear suspension assembly as claimed in claim 1, wherein the air spring damper assembly is provided with a lifting lug at each of the top end and the bottom end, and is connected to the lower bracket and the hydraulic lock assembly through the lifting lug, a bolt penetrating the lifting lug and a nut in threaded fit with the bolt.
5. The tubular beam cab suspension rear suspension assembly of claim 4 wherein a rubber bushing is embedded in the lifting lug.
6. The tubular beam cab suspension rear suspension assembly of claim 1 wherein a rubber bushing is disposed within the pin of the locking bracket assembly.
7. The tubular beam cab suspension rear suspension assembly as claimed in any one of claims 1 to 6, wherein the cross beam and the hydraulic lock assembly and the lower bracket are connected by a bolt and a nut which are in threaded engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120646189.7U CN215361584U (en) | 2021-03-30 | 2021-03-30 | Pipe beam type cab suspension rear suspension assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120646189.7U CN215361584U (en) | 2021-03-30 | 2021-03-30 | Pipe beam type cab suspension rear suspension assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215361584U true CN215361584U (en) | 2021-12-31 |
Family
ID=79625498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120646189.7U Active CN215361584U (en) | 2021-03-30 | 2021-03-30 | Pipe beam type cab suspension rear suspension assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215361584U (en) |
-
2021
- 2021-03-30 CN CN202120646189.7U patent/CN215361584U/en active Active
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