CN212797130U

CN212797130U - Double-arm support type hydraulic lifting spare tire carrier assembly

Info

Publication number: CN212797130U
Application number: CN202020807094.4U
Authority: CN
Inventors: 李冲天; 缪菊平; 罗向辉; 谢涛
Original assignee: Shaanxi Heavy Duty Automobile Co Ltd
Current assignee: Shaanxi Heavy Duty Automobile Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-03-26
Anticipated expiration: 2030-05-15

Abstract

The utility model relates to a heavy cross-country vehicle technical field. In particular to a double-arm supporting type hydraulic lifting spare tire carrier assembly. Comprises a roll-over stand assembly, a main supporting arm assembly, an auxiliary supporting arm assembly, a hydraulic oil cylinder and a hydraulic oil pump; the roll-over stand assembly comprises a roll-over arm, an auxiliary support and a fixed disk, the fixed disk is connected to the top end of the roll-over arm, and the auxiliary support is fixedly connected with the roll-over arm. The main support arm assembly comprises an upper support rod and a lower support rod which are fixedly arranged, and the outer end of the lower support rod is hinged with the lower end of the turnover arm; the auxiliary supporting arm assembly comprises an upper cross rod and a lower cross rod which are fixedly arranged, the outer end of the lower cross rod is hinged with the lower end of the auxiliary support, and the height of the upper cross rod is lower than that of the upper supporting rod. The hydraulic oil pump is connected with a hydraulic oil cylinder through a pipeline, the rodless end of the hydraulic oil cylinder is fixedly connected with the main support arm assembly, and the piston rod of the hydraulic oil cylinder is connected with the turnover arm. This hydraulic pressure lift spare tire rack assembly provides bigger space for the vehicle facial make-up, and both arms support more reliable and more stable.

Description

Double-arm support type hydraulic lifting spare tire carrier assembly

Technical Field

The utility model relates to a heavy cross country vehicle technical field, concretely relates to both arms support formula hydraulic pressure lift spare tyre rack assembly.

Background

At present, a hydraulic lifting spare tire frame of a known heavy cross-country vehicle is usually fixed by adopting a parallel frame fixed spare tire, a double-pull-rod type and a single-arm support for overturning, and the former two types occupy larger front and rear modification spaces, particularly the double-pull-rod type needs to arrange an oil cylinder on the ventral surface of the frame, occupies larger space and is not suitable for being installed with larger space; the latter has small occupied space but poor single-arm fixing stability and has fracture risk.

In view of the above-mentioned drawbacks, the authors of the present invention have finally obtained the present invention through long-term research and practice.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defect, the utility model provides a both arms support formula hydraulic pressure lift spare tyre rack assembly, it not only provides bigger space for heavy cross country vehicle facial make-up, and occupation space is little, and both arms support more reliable and more stable moreover, easy dismounting.

The utility model discloses a technical scheme lie in:

a double-arm support type hydraulic lifting spare tire carrier assembly is characterized by comprising a roll-over stand assembly (4), a main support arm assembly (5), an auxiliary support arm assembly (7), a hydraulic oil cylinder (8) and a hydraulic oil pump (9);

the overturning frame assembly comprises an overturning arm (42), an auxiliary support (43) and a fixed disc (41), the fixed disc is used for mounting a spare tire and connected to the top end of the overturning arm, and the auxiliary support is fixedly connected with the overturning arm;

the main support arm assembly comprises an upper support rod (51) and a lower support rod (52) which are fixedly arranged, and the outer end of the lower support rod is hinged with the lower end of the turnover arm;

the auxiliary supporting arm assembly comprises an upper cross rod (71) and a lower cross rod (72) which are fixedly arranged, the outer end of the lower cross rod is hinged with the lower end of the auxiliary support, and the height of the upper cross rod is lower than that of the upper support rod;

the hydraulic oil pump is fixedly arranged and is connected with the hydraulic oil cylinder through a pipeline;

the rod-free end of the hydraulic oil cylinder is fixedly connected with the main support arm assembly, and a piston rod of the hydraulic oil cylinder is connected with the turnover arm, so that the turnover arm is driven to swing, and the spare tire rises and falls.

Further, when the fixed disc ascends to the highest position, the turnover arm is in contact with the upper support rod, and the auxiliary support is in contact with the upper cross rod.

Furthermore, a first guide plate is arranged at the outer end of the upper support rod, a second guide plate is arranged at the outer end of the upper cross rod, and support grooves are formed in the first guide plate and the second guide plate;

when the fixed disc ascends to the highest position, the overturning arm is positioned in the supporting groove of the first guide plate, and the auxiliary support is positioned in the supporting groove of the second guide plate.

Furthermore, the auxiliary support and the upper cross rod are provided with threaded holes at corresponding positions, and when the fixed disc ascends to the highest position, the fixed bolt (6) is matched with the threaded holes so that the auxiliary support is fixedly connected with the upper cross rod.

Furthermore, the turnover mechanism also comprises a small connecting rod (81) and a small swing rod (82), wherein one end of the small connecting rod is hinged with one end of the small swing rod, the other end of the small connecting rod is hinged with the turnover arm, and the other end of the small swing rod is hinged with the lower support rod, so that the small connecting rod (81), the small swing rod (82), the turnover arm (42) and the lower support rod (52) form a four-link mechanism; and a piston rod of the hydraulic oil cylinder is connected to the hinged part of the small connecting rod and the small swing rod, so that the four-bar mechanism can be driven to move, and the turnover arm can swing.

Further, the surfaces of the upper support rod and the lower support rod are parallel to the surfaces of the upper cross rod and the lower cross rod.

Further, the auxiliary support is of a straight-angle bending rod structure.

Further, it is arranged at the rear of the cab of the vehicle, and the roll-over stand assembly is positioned above the frame.

Further, the main supporting arm assembly and the auxiliary supporting arm assembly are fixed on the frame.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a both arms support formula hydraulic pressure lift spare tyre rack assembly adopts two height collocation support arm assemblies, all supports roll-over stand assembly and tire weight to can lock with fixing bolt, reliable and stable, occupation space is little, easy dismouting quick maintenance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the installation position of the double-arm support type hydraulic lifting spare tire carrier assembly of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the dual-arm supported hydraulic lifting spare tire carrier assembly of the present invention.

Detailed Description

The above and further features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in FIG. 1, the utility model discloses a both arms support formula hydraulic pressure lift spare tyre rack assembly 3 arranges at heavy cross country vehicle's driver's cabin 1 rear portion and is located the frame top, and occupation space is little, provides bigger space for heavy cross country vehicle facial make-up.

As shown in fig. 1 and fig. 2, in the present embodiment, the double-arm support type hydraulic lifting spare tire carrier assembly 3 includes a roll-over stand assembly 4, a main support arm assembly 5, a secondary support arm assembly 7, a hydraulic oil cylinder 8 and a hydraulic oil pump 9; the roll-over stand assembly 4 comprises a roll-over arm 42, a secondary bracket 43 and a fixed disk 41, wherein the fixed disk 41 is used for installing the spare tire 2 and is connected to the top end of the roll-over arm 42, and the secondary bracket 43 is fixedly connected with the roll-over arm 42. The main support arm assembly 5 comprises an upper support rod 51 and a lower support rod 52 which are fixedly arranged, and the outer end of the lower support rod 52 is hinged with the lower end of the turnover arm 42. The secondary support arm assembly 7 comprises an upper cross bar 71 and a lower cross bar 72 which are fixedly arranged, the outer end of the lower cross bar 72 is hinged with the lower end of the secondary support, and the height of the upper cross bar 71 is lower than that of the upper support rod 51. The two supporting

arm assemblies

5 and 7 are matched in height, and the two supporting

arm assemblies

5 and 7 support the weight of the roll-over

stand assemblies

5 and 7 and the weight of the tire 2 together, so that the tire rolling-over device is stable and reliable, and avoids breakage. The hydraulic oil pump 9 is fixedly arranged on the vehicle and is connected with the hydraulic oil cylinder 8 through a pipeline, and the hydraulic oil pump 9 provides power for the hydraulic oil cylinder 8 through a hydraulic pipeline. The rodless end of the hydraulic oil cylinder 8 is fixedly connected with the main support arm assembly 5, the piston rod of the hydraulic oil cylinder 8 is connected with the turnover arm 42, and the hydraulic oil cylinder 8 drives the turnover arm 42 to swing through the extension and contraction of the piston rod of the hydraulic oil cylinder 8, so that the spare tire 2 mounted on the fixed disc 41 rises and falls. When the stationary platen 41 is raised to the uppermost position (i.e., the spare tire 2 is in a normal mounted state on the vehicle for a long time), the tilt arm 42 is in contact with the upper rail 51, and the sub-bracket 43 is in contact with the upper rail 71. The upper support rod 51 and the upper cross rod 71 support the roll-over stand assembly 4 together to ensure the stability of the roll-over stand assembly. Preferably, the plane of the upper and

lower struts

51, 52 is parallel to the plane of the upper and

lower crossbars

71, 72. The sub-bracket 43 adopts a straight angle bending rod structure. The main support arm assembly 5 and the auxiliary support arm assembly 7 are fixed on the frame.

In a specific embodiment, a first guide plate is mounted at the outer end of the upper support rod 51, a second guide plate is mounted at the outer end of the upper cross rod 71, and a support groove is formed in each of the first guide plate and the second guide plate. The supporting groove is provided with a corresponding inclined surface which can keep the supporting groove to be matched and attached firmly with the turnover frame assembly 4. When the fixed plate 41 is raised to the uppermost position, the turning arm 42 is positioned in the supporting groove of the first guide plate, and the sub-bracket 43 is positioned in the supporting groove of the second guide plate. The two supporting

arm assemblies

5 and 7 can support the roll-over stand assembly 4 more firmly through the arrangement of the guide plate. Threaded holes are formed in the positions, corresponding to the upper cross rod 71, of the auxiliary support 43, and when the fixed disc 41 rises to the highest position, the auxiliary support 43 is fixedly connected with the upper cross rod 71 through the matching of the fixing bolts 6 and the threaded holes. Ensuring that the roll-over stand assembly 4 is fixed in this position. When the spare tire 2 needs to be put down, the fixing bolt 6 is firstly disassembled, and then the roll-over stand assembly 4 is lowered.

In a specific embodiment, the double-arm supported hydraulic spare tire carrier assembly 3 further comprises a small link 81 and a small swing link 82, one end of the small link 81 is hinged with one end of the small swing link 82, the other end of the small link 81 is hinged with the overturning arm 42, and the other end of the small swing link 82 is hinged with the lower link 52, so that the small link 81, the small swing link 82, the overturning arm 42 and the lower link 52 form a four-bar linkage. The piston rod of the hydraulic oil cylinder 8 is connected to the hinged position of the small connecting rod 81 and the small swing rod 82, so that the four-bar mechanism can be driven to move, and the turnover arm 42 can swing.

The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative, not limiting. The utility model discloses in all can change to some extent structure and connected mode etc. of each part all be in the utility model discloses equal transform and the improvement of going on technical scheme's the basis all should not get rid of the utility model discloses an outside the protection scope.

Claims

1. A double-arm support type hydraulic lifting spare tire carrier assembly is characterized by comprising a roll-over stand assembly (4), a main support arm assembly (5), an auxiliary support arm assembly (7), a hydraulic oil cylinder (8) and a hydraulic oil pump (9);

2. The dual-arm supported hydraulic spare tire carrier assembly of claim 1, wherein when the fixed platen is raised to the highest position, the flip arm contacts the upper support bar and the sub-mount contacts the upper support bar.

3. The dual arm supported hydraulic lift spare tire carrier assembly of claim 2,

a first guide plate is arranged at the outer end of the upper support rod, a second guide plate is arranged at the outer end of the upper cross rod, and support grooves are formed in the first guide plate and the second guide plate;

4. A double-arm support type hydraulic lifting spare tire carrier assembly as claimed in any one of claims 2 or 3, wherein threaded holes are formed in the positions of the secondary support corresponding to the upper cross bar, and when the fixed disc is lifted to the highest position, a fixing bolt (6) is matched with the threaded holes to fixedly connect the secondary support and the upper cross bar.

5. A double-arm supported hydraulic lifting spare tire carrier assembly according to any one of claims 1-3, further comprising a small connecting rod (81) and a small swing link (82), wherein one end of the small connecting rod is hinged with one end of the small swing link, the other end of the small connecting rod is hinged with the overturning arm, and the other end of the small swing link is hinged with the lower support rod, so that the small connecting rod (81), the small swing link (82), the overturning arm (42) and the lower support rod (52) form a four-bar linkage; and a piston rod of the hydraulic oil cylinder is connected to the hinged part of the small connecting rod and the small swing rod, so that the four-bar mechanism can be driven to move, and the turnover arm can swing.

6. A double arm supported hydraulic spare tire carrier assembly as claimed in any one of claims 1 to 3, wherein the plane of said upper and lower struts is parallel to the plane of said upper and lower crossbars.

7. The dual arm supported hydraulic lift spare tire carrier assembly of claim 6, wherein said secondary support is a right angle bent rod configuration.

8. A double arm supported hydraulic spare tire carrier assembly as claimed in any one of claims 1 to 3, wherein it is disposed at the rear of the vehicle cab and said roll-over stand assembly is located above the vehicle frame.

9. A dual arm supported hydraulic lift spare tire carrier assembly as claimed in claim 8, wherein said primary and secondary support arm assemblies are secured to the vehicle frame.