CN202130516U - Engineering vehicle and spare wheel lifting device thereof - Google Patents
Engineering vehicle and spare wheel lifting device thereof Download PDFInfo
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- CN202130516U CN202130516U CN201120271271U CN201120271271U CN202130516U CN 202130516 U CN202130516 U CN 202130516U CN 201120271271 U CN201120271271 U CN 201120271271U CN 201120271271 U CN201120271271 U CN 201120271271U CN 202130516 U CN202130516 U CN 202130516U
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Abstract
The utility model discloses an engineering vehicle and a spare wheel lifting device thereof. The spare wheel lifting device comprises a spare wheel mounting bracket (3), a guide wheel (6), a pulley assembly (7), a rope collecting mechanism and a chain rope (2), wherein a first surface of the mounting bracket (3) is detachably installed on an engineering vehicle body, and provided with a bearing pack (5), and a second surface of the spare tire mounting bracket is provided with a spare tire fixing structure used for fixing a spare tire (10); the guide rail (6) is arranged on the engineering vehicle body, extends along the vertical direction and is matched with the bearing pack (5); a first end of the chain rope (2) is wound on the rope collecting end of the rope collecting mechanism, and a second end of the chain rope (2) is connected with the spare tire mounting bracket (3). The spare tire lifting device can realize the lifting and the descending of the spare tire by using small force, is not easy to damage in work process, and has small resistance when lifting and descending the spare tire.
Description
Technical field
The utility model relates to a kind of engineering truck technical field, relates in particular to a kind of engineering truck and spare tyre jacking system thereof.
Background technology
Generally all be provided with spare tyre on the car body of engineering truck, spare tyre generally is mounted on certain bearing of car body, when needs are changed spare tyre, spare tyre is taken off from car body, when not needing spare tyre, spare tyre is promoted to the position of the bearing of car body, uses when unexpected.In the prior art, several kinds of modes realized below the lifting of spare tyre and transferring was mainly passed through.
First kind of spare tyre up-down mode is promoted to spare tyre on the bearing of car body through manpower or other hanging devices, then spare tyre is fixed on the car body through anchor fittings such as bolts.In the time of need transferring spare tyre, adopt manpower or other hanging devices that spare tyre is put down from car body equally.This spare tyre up-down mode need consume bigger manpower or need other hanging devices, and is inconvenient when spare tyre promotes or puts down.This up-down mode is mainly used in the vehicle of spare tyre lighter weight such as middle or small tonnage automobile crane, cross-country car.
Second kind of spare tyre up-down mode adopts gear pair number of teeth difference lifting mechanism to realize the up-down of spare tyre, hand is installed on the driving gear taken sleeve; Driven gear connects the chain of lifting spare tyre, and driving gear and driven gear are meshing with each other, and takes sleeve to shake driving gear with hand and rotates; Driving gear drives driven gear and rotates, and makes the spare tyre that is lifted on the chain realize this spare tyre up-down mode; Because the gear pair ratio of number of teeth is less, it is time-consuming relatively to require great effort with hand moving driving gear, and this just makes vehicle in the form process, change comparatively inconvenience of spare tyre; And because the size of gear pair is bigger, difficulty finds suitable installing space on vehicle.This spare tyre mounting means is mainly used in some medium tonnage automobile cranes, vehicle that agitating lorry lamp spare tyre is heavier.Especially for some large-tonnage engineering trucks, like the large-tonnage car hosit etc., spare tyre is very heavy, if adopt this second kind of spare tyre up-down mode, when changing spare tyre, needs two people could rocking gears secondary at least, move slowlyer, and it is difficult to change spare tyre; And because the spare tyre quality is heavier, the size of the gear pair that needs is also bigger, the difficult suitable space that finds the mounting teeth wheel set on vehicle.
The lifting mechanism that also has a kind of Worm-gear type in the prior art, its structure is as shown in Figure 1.This mechanism is made up of worm-and-wheel gear 1 ', chain rope 2 ', fixed pulley 7 ', rotating shaft pair 9 ', spare tyre adapter plate 3 ' and steel pipe 4 ' etc.Spare tyre 10 ' is fixed on the steel pipe 4 ' through spare tyre adapter plate 3 ', and 4 ' one of steel pipe is installed 1 ', one of worm-and-wheel gear and is installed in the rotating shaft secondary 9 '.2 ' one in chain rope is pressed on the interior rope-winding wheel of worm-and-wheel gear 1 ', and one is fixed on the worm-and-wheel gear 1 ' shell after walking around fixed pulley 7 '.The position of each mechanism and spare tyre is as shown in Figure 1 during vehicle '.Upper right side worm-and-wheel gear 1 ' is located the worm and gear transmission has self-locking action.When needing to change spare tyre; Pull out worm-and-wheel gear 1 ' below latch; Shake handle spare tyre 10 ' (band steel pipe 4 ') is a little up lifted, make fixedly that the hook of steel pipe withdraws from the groove on the bearing, pull spare tyre 10 ' (being with steel pipe 4 '); It is clockwise rotated around the vertical rotation axis pair, and the back shrouding is left on the spare tyre right side like this.At this moment shake handle again and make past decline of spare tyre 10 ' (band steel pipe 4 '), promptly entire mechanism is rotated around horizontal bearing pin, up to the spare tyre kiss the earth.Unclamp the bolt on the adapter plate then, spare tyre and mechanism throw off fully, and just can carry out spare tyre and more change jobs this moment.
Defectiveness on this mechanism's intensity, spare tyre is installed on the steel pipe 4 ', and worm-and-wheel gear 1 ' also is installed in steel pipe 4 ' and goes up servo-actuated, carries out around the rotation of fulcrum on both direction through steel pipe 4 '.Basically all weight are all born on steel pipe 4 '.But steel pipe 4 ' is long, and hoisting crane goes or causes that the connecting rod vibration is bigger during operation, thus easy flexural deformation of connecting rod even fracture.
The utility model content
The utility model technical matters to be solved provides a kind of engineering truck and spare tyre jacking system thereof; This spare tyre jacking system can be realized the lifting of spare tyre and transfers with less power; Be difficult for damaging in the course of the work, and the resistance that spare tyre is transferred in the process in lifting is less.
For solving the problems of the technologies described above; An aspect according to the utility model; A kind of spare tyre jacking system of engineering truck is provided, and this device comprises: the spare tyre mounting bracket, and its first face is removably mounted on the car body of engineering truck; And its first is provided with bearing set, and its second mask is useful on the fixedly spare tyre fixed sturcture of spare tyre; Guide rail is arranged on the car body of engineering truck, vertically extends, and cooperates with bearing set; Pulley assembly; The rope drawing machine structure; And the chain rope, its first end is around in the receipts end of rope drawing machine structure, and its second end is connected with the spare tyre mounting bracket through pulley assembly.
Further, guide rail comprises: first guide rail, be arranged on the primary importance of the car body rear side of engineering truck, and the cross-sectional plane of first guide rail takes the shape of the letter U, two sidewalls that have diapire and be positioned at the diapire both sides; Second guide rail is arranged on the second place of the car body rear side of engineering truck, and the cross-sectional plane of second guide rail takes the shape of the letter U, two sidewalls that have diapire and be positioned at the diapire both sides, and the opening of the opening of first guide rail and second guide rail is against each other; Bearing set comprises: the clutch shaft bearing group, be arranged in first guide rail, and have clutch shaft bearing that cooperates with the diapire of first guide rail and second bearing that cooperates with the sidewall of first guide rail; Second bearing set is arranged in second guide rail, has the 4th bearing that the third axle that cooperates with the diapire of second guide rail holds and cooperate with the sidewall of second guide rail.
Further, guide rail also comprises the 3rd guide rail, is arranged on the 3rd position of the car body rear side of engineering truck; Between first guide rail and second guide rail; The cross-sectional plane of the 3rd guide rail becomes U-shaped, two sidewalls that have diapire and be positioned at the diapire both sides, and the opening of the 3rd guide rail is towards the car body rear; Bearing set comprises that also third axle holds group, is arranged in the 3rd guide rail, has the 5th bearing that cooperates with the diapire of the 3rd guide rail; Clutch shaft bearing group, second bearing set and third axle hold group and form leg-of-mutton three summits.
Further, pulley assembly comprises: first movable pulley, fix with the spare tyre mounting bracket; First fixed pulley is fixed on the car body of engineering truck, is positioned at the top of first movable pulley; Second end of chain rope is fixed on the bearing of first fixed pulley, and the chain rope is around on first movable pulley and first fixed pulley from this second end in order.
Further, pulley assembly also comprises second fixed pulley, and wherein second fixed pulley is arranged between first fixed pulley and the rope drawing machine structure; The chain rope is around on first movable pulley, first fixed pulley, second fixed pulley and the rope drawing machine structure from its second end in order.
Further, the rope drawing machine structure is a Worm and worm-wheel gearing, and worm-and-wheel gear comprises: worm gear; Worm screw is provided with the worm gear engagement; Rope-winding wheel, its center is connected with the center of worm gear; And handle, be connected with the rod end of worm screw; The receipts end of rope drawing machine structure is positioned on the side face of rope-winding wheel.
Further, the spare tyre fixed sturcture is the spare tyre fabricated section, and the spare tyre fabricated section is in the form of annular discs, which is provided with and the corresponding hole of the mounting hole of spare tyre.
Further, have S. A. on the spare tyre mounting bracket, the spare tyre fabricated section rotatably is sheathed on the S. A..
Another aspect according to the utility model also provides a kind of engineering truck, and this project vehicle comprises above-mentioned any spare tyre jacking system.
The utlity model has following beneficial effect:
1. in the spare tyre jacking system of the engineering truck of the utility model, the spare tyre fixed sturcture on second of the spare tyre mounting bracket is spare tyre fixedly, and first end of chain rope is around in the receipts end of rope drawing machine structure, and its second end is connected with the spare tyre mounting bracket through pulley assembly.Like this, when needing to promote spare tyre, spare tyre is fixed on the spare tyre mounting bracket; Drive the rope drawing machine structure; The rope drawing machine structure can make the tension of chain rope, and the chain rope promotes spare tyre under the effect of pulley assembly gradually, when spare tyre is promoted to the spare tyre fixed position; Spare tyre erecting frame and car body are fixed, and the rope drawing machine structure quits work; In the time of need transferring spare tyre; With the releasing of captiveing joint between spare tyre mounting bracket and the car body, at this moment the chain rope can be tightened, and drives the rope drawing machine structure chain rope is unclamped; The chain rope puts down spare tyre under the effect of pulley assembly gradually; When spare tyre is transferred to desired location,, just can carry out more changing jobs of spare tyre with the releasing that is connected between spare tyre and the spare tyre fabricated section.The spare tyre jacking system of this structure has adopted chain rope and pulley assembly structure, and the winding of quantity, position and chain rope that can be through pulley is set is arranged on the rope drawing machine structure correct position of vehicle frame; Also can realize spare tyre being promoted or transferring through different pulley block ratios is set with less power.
Compare with the Worm-gear type lifting mechanism described in the application's the background technology; In this spare tyre jacking system of the utility model; The rope drawing machine structure is fixed on the car body, need not to move with the work of whole device again, and this makes that whole spare tyre jacking system is more stable.In addition; Use the spare tyre jacking system of the utility model; Spare tyre is when being promoted to the spare tyre fixed position; Be to be fixed on the car body through the spare tyre mounting bracket, its gravity is born by car body, thereby can not cause the distortion of other little framing members (like the steel pipe in the Worm-gear type lifting mechanism of the prior art).
2. in the spare tyre jacking system of the engineering truck of the utility model, first of the spare tyre mounting bracket is provided with bearing set, and the car body of engineering truck is provided with the guide rail that cooperates and vertically extend with bearing set.Like this, the action that the spare tyre mounting bracket can promote or transfer along guide rail through bearing set, this structure can reduce spare tyre and promote or transferring the resistance in the process, uses less power just can or transfer the spare tyre lifting.
In addition; Use bearing to cooperate with guide rail; Make that the friction force between spare tyre jacking system and the car body is littler; And make lowlyer to the making accuracy requirement (like the requirements such as degree of finish, planeness and parallelism requirement of guide rail) of guide rail diapire sidewall, and bearing set is supported on the diapire of guide rail, can increase the friction force of respective point and prevent to tilt before and after the spare tyre mounting bracket.
Except top described purpose, feature and advantage, the utility model also has other purpose, feature and advantage.To do further detailed explanation to the utility model with reference to figure below.
Description of drawings
Accompanying drawing is used to provide the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the spare tyre jacking system of a kind of engineering truck in the prior art;
Fig. 2 is the main TV structure scheme drawing according to the spare tyre jacking system of the engineering truck of the embodiment of the utility model;
Fig. 3 is the plan structure scheme drawing according to the spare tyre jacking system of the engineering truck of the embodiment of the utility model;
Fig. 4 is the left TV structure scheme drawing according to the spare tyre jacking system of the engineering truck of the embodiment of the utility model;
Fig. 5 is the schematic top plan view according to the mounting structure between the clutch shaft bearing group and first guide rail in the spare tyre jacking system of the engineering truck of the embodiment of the utility model;
Fig. 6 is the main cross-sectional schematic according to the mounting structure between the clutch shaft bearing group and first guide rail in the spare tyre jacking system of the engineering truck of the embodiment of the utility model;
Fig. 7 is the schematic top plan view according to the mounting structure between second bearing set and second guide rail in the spare tyre jacking system of the engineering truck of the embodiment of the utility model;
Fig. 8 is the schematic top plan view of holding the mounting structure between group and the 3rd guide rail according to third axle in the spare tyre jacking system of the engineering truck of the embodiment of the utility model;
Fig. 9 is the schematic top plan view of holding the mounting structure between group and the 3rd guide rail according to third axle in the spare tyre jacking system of the engineering truck of the embodiment of the utility model;
Figure 10 is the sectional structure scheme drawing of the Worm and worm-wheel gearing among Fig. 2;
Figure 11 is the main TV structure scheme drawing of the drive structure of gear worm among Fig. 2;
Figure 12 is the semi-sictional view structural representation of the drive structure of gear worm among Fig. 2.
The specific embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Shown in Fig. 2-3, comprise spare tyre mounting bracket 3, pulley assembly 7, rope drawing machine structure (being Worm and worm-wheel gearing 1 in the present embodiment) and chain rope 2 according to the spare tyre jacking system of the engineering truck of the embodiment of the utility model.First (one side of can't see among Fig. 2) of this spare tyre mounting bracket 3 is removably mounted on the car body of engineering truck, and second of this spare tyre mounting bracket 3 (among Fig. 2 towards viewer one side) has the spare tyre fixed sturcture that is used for fixing spare tyre 10; First end of chain rope 2 is around in the receipts end of rope drawing machine structure, and second end of chain rope 2 is connected with spare tyre mounting bracket 3 through pulley assembly 7.
Like this, when needing to promote spare tyre 10, spare tyre 10 is fixed on the spare tyre mounting bracket 3; Drive the rope drawing machine structure; The rope drawing machine structure can make 2 tensions of chain rope, and chain rope 2 promotes spare tyre 10 under the effect of pulley assembly 7 gradually, when spare tyre 10 is promoted to the spare tyre fixed position; The rope drawing machine structure quits work, and spare tyre erecting frame 3 and car body are fixed; In the time of need transferring spare tyre 10; With the releasing of captiveing joint between spare tyre mounting bracket 3 and the car body, this is that chain rope 2 can be tightened, and drives the rope drawing machine structure chain rope 2 is unclamped; Chain rope 2 puts down spare tyre 10 under the effect of pulley assembly 7 gradually; When spare tyre 10 is transferred to desired location,, just can carry out more changing jobs of spare tyre 10 with the releasing that is connected of spare tyre 10 with spare tyre fabricated section support 3.The structure that the spare tyre jacking system of this structure has adopted chain rope 2 and pulley assembly 7 to cooperate, quantity, position and chain rope 2 that can be through pulley assembly 7 middle pulleys are set in pulley assembly 7 winding and the rope drawing machine structure is arranged on the correct position of vehicle frame; Also can realize in the short period of time spare tyre being promoted or transferring through different pulley block ratios is set with less power.In addition, on the car body of engineering truck, be fixed with locating bush, this locating bush has the effect of definite spare tyre fixed position.In driving the process of rope drawing machine structure with lifting spare tyre 10, when spare tyre mounting bracket 3 was met this locating bush, the operator stopped the driving to the rope drawing machine structure, can stop the rising of spare tyre, was fixed on the corresponding spare tyre fixed position.
In addition; Compare with the Worm-gear type lifting mechanism described in the application's the background technology, in this spare tyre jacking system of the utility model, the rope drawing machine structure is fixed on the car body; Need not to move with the work of whole device, this makes that whole spare tyre jacking system is more stable again.In addition; Use the spare tyre jacking system of the utility model; Spare tyre 10 is when being promoted to the spare tyre fixed position; Be to be fixed on the car body through spare tyre mounting bracket 3, its gravity is born by car body, thereby can not cause the distortion of other little framing members (like the steel pipe in the Worm-gear type lifting mechanism of the prior art).
Can also see that from Fig. 2-4 in the spare tyre jacking system of the utility model, first of spare tyre mounting bracket 3 is provided with bearing set 5; Accordingly, the car body of engineering truck is provided with the guide rail 6 that cooperates with bearing set, and guide rail 6 vertically extends.Like this; The action that spare tyre mounting bracket 3 can promote or transfer along guide rail 6 through bearing set 5 when promoting and transferring spare tyre mounting bracket 3 (being fixed with spare tyre 10 on it); This structure can reduce spare tyre and promote or transferring the resistance in the process, uses less power just can spare tyre promoted or transfer in a short period of time.In addition; With respect to the structure of using slide block and guide rail; Use bearing to cooperate, make that the friction force between spare tyre jacking system and the car body is littler, and make lower the making accuracy requirement (like the requirements such as degree of finish, planeness and parallelism requirement of guide rail) of guide rail diapire sidewall with guide rail; And bearing set is supported on the diapire of guide rail, can increase the friction force of respective point and prevent to tilt before and after the spare tyre mounting bracket.
Preferably, as shown in Figure 4, can be provided with bearing lever 8 in the bottom of guide rail 6, be used to prevent the bearing getaway.
More preferably, shown in Fig. 2-4 and Fig. 5-7, in the present embodiment, guide rail 6 comprises first guide rail 61 and second guide rail 62.First guide rail 61 is arranged on the primary importance of the car body rear side of engineering truck, and cross-sectional plane takes the shape of the letter U, two sidewalls that have diapire and be positioned at the diapire both sides; Second guide rail 62 is arranged on the second place of the car body rear side of engineering truck, and cross-sectional plane also takes the shape of the letter U, and two sidewalls that also have diapire and be positioned at the diapire both sides, and the opening of the opening of first guide rail 61 and second guide rail 62 against each other.Bearing set 5 comprises the clutch shaft bearing group 51 and second bearing set 52.Like Fig. 5 and shown in Figure 6, clutch shaft bearing group 51 is arranged in first guide rail 61, has clutch shaft bearing 511 that cooperates with the diapire of first guide rail 61 and second bearing 512 that cooperates with the sidewall of first guide rail 61; As shown in Figure 7, second bearing set 52 is arranged in second guide rail 62, has the third axle that cooperates with the diapire of second guide rail 62 and holds 521 and the 4th bearing 522 that cooperates with the sidewall of second guide rail 62.
In the present embodiment, this clutch shaft bearing group 51 and this second bearing set 52 couple together through cross bar, and cross bar is arranged in the correct position of the center of gravity top of spare tyre jacking system.It will be understood by those skilled in the art that at whole spare tyre jacking system accurately during oscilaltion vertically to have only second bearing 512 and the 4th bearing 522 and sidewall to roll along guide rail.Yet in practice; The oscilaltion of spare tyre jacking system is regular meeting left and right sides unbalance stress often; Make whole device left or during right bank; The clutch shaft bearing 511 or second bearing 512 work, and just roll along the corresponding guide rail diapire, make spare tyre fabricated section support 3 recover the normal condition of motion vertically.The clutch shaft bearing 511 and second bearing 512 with can also prevent that bearing set is stuck in guide rail cooperating of guide rail.
More preferably, like Fig. 8 and shown in Figure 9, in the present embodiment; Guide rail 6 also comprises the 3rd guide rail 63; Be arranged on the 3rd position of the car body rear side of engineering truck, between first guide rail 61 and second guide rail 62, the cross-sectional plane of the 3rd guide rail 63 also becomes U-shaped; Two sidewalls that have diapire and be positioned at the diapire both sides, the opening of the 3rd guide rail 63 is towards the car body rear.Accordingly, bearing set comprises that also third axle holds group 53, and this is arranged in the 3rd guide rail 63, and this third axle holds group 53 and has the 5th bearing 531 that cooperates with the diapire of the 3rd guide rail 63.
Clutch shaft bearing group 51, second bearing set 52 and third axle hold group 53 and form leg-of-mutton three summits around the center of gravity of spare tyre mounting bracket 3; In the present embodiment; The clutch shaft bearing group 51 and second bearing set 52 are arranged on the center of gravity top of spare tyre mounting bracket 3; Accordingly, third axle holds the center of gravity below that group 53 is arranged on spare tyre mounting bracket 3.Three bearing sets are supported on respectively on the guide rail, can prevent effectively that spare tyre mounting bracket 3 front and back that spare tyre is housed from tilting.
In addition, preferably as shown in Figure 2, in the present embodiment, pulley assembly 7 comprises first movable pulley 71 and first fixed pulley 72.First movable pulley 71 is fixing with spare tyre mounting bracket 3; First fixed pulley 72 is fixed on the car body of engineering truck, is positioned at the top of first movable pulley 71; Second end of chain rope 2 is fixed on the bearing of first fixed pulley 72, and chain rope 2 is around on first movable pulley 71 and first fixed pulley 72 from this second end in order, is around in the rope drawing machine structure at last.The multiplying power of the pulley assembly of this structure is a twice, and promptly chain rope 2 tightens up or loosens 2L length, and spare tyre 10 can be raised or transfer the height of L, uses the lifting of less power realization spare tyre 10 and transfers.
In the present embodiment, pulley assembly 7 also comprises second fixed pulley 73, and wherein second fixed pulley 73 is arranged between first fixed pulley 72 and the rope drawing machine structure; Chain rope 2 is around on first movable pulley 71, first fixed pulley 72, second fixed pulley 73 and the rope drawing machine structure from its second end in order.Second fixed pulley 73 plays the effect of the direction break-in that makes chain rope 2.
In addition, shown in Figure 10-12, in the present embodiment, the rope drawing machine structure is a Worm and worm-wheel gearing 1, and worm-and-wheel gear 1 comprises: worm gear 11; Worm screw 12 is provided with worm gear 11 engagements; Rope-winding wheel 13, its center is connected with the center of worm gear 11; And handle 14, be connected with the rod end of worm screw 12; The receipts end of this worm-and-wheel gear 1 is positioned on the side face of rope-winding wheel 13, and just, first end of chain rope 2 is around on the side face of rope-winding wheel 13.Shake handle 14, can drive worm screw 12 rotation, worm gear 11 is with worm screw 12 rotations, and worm gear 11 drives rope-winding wheels 13 rotations, and rope-winding wheel 13 can tighten up the chain rope 2 that is around in its side face or loosen.
Worm and worm-wheel gearing has the bigger characteristics of transmitting ratio, uses less power just can shake handle, just can drive spare tyre 10 and promote or transfer action.And Worm and worm-wheel gearing has auto-lock function, and when stopping to shake handle, Worm and worm-wheel gearing will pin voluntarily, thereby spare tyre can not drop under the effect of its deadweight, and safety is higher.In addition, the Worm and worm-wheel gearing scantling of structure is less, and needed installing space is also less, and the position that can be installed on the vehicle frame is more, can be provided with arbitrarily as required.
As shown in Figure 2, in the present embodiment, the spare tyre fixed sturcture is a spare tyre fabricated section 31, and spare tyre fabricated section 31 is in the form of annular discs, which is provided with and the corresponding hole of the mounting hole of spare tyre 10, so that spare tyre 10 to be installed.In addition, spare tyre mounting bracket 3 is provided with S. A., and correspondingly, spare tyre fabricated section 31 rotatably is set on this S. A., and the hole during with convenient the installation on the spare tyre fabricated section 31 and the mounting hole of spare tyre 10 are to the hole.
The utility model also provides a kind of engineering truck, and this project vehicle comprises above-mentioned spare tyre jacking system.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (9)
1. the spare tyre jacking system of an engineering truck is characterized in that, comprising:
Spare tyre mounting bracket (3), its first face is removably mounted on the car body of said engineering truck, and its first be provided with bearing set (5), and its second mask is useful on the fixedly spare tyre fixed sturcture of spare tyre (10);
Guide rail (6) is arranged on the car body of said engineering truck, vertically extends, and cooperates with said bearing set (5);
Pulley assembly (7);
The rope drawing machine structure; And
Chain rope (2), its first end is around in the receipts end of said rope drawing machine structure, and its second end is connected with said spare tyre mounting bracket (3) through said pulley assembly (7).
2. the spare tyre jacking system of engineering truck according to claim 1 is characterized in that,
Said guide rail (6) comprising:
First guide rail (61) is arranged on the primary importance of the car body rear side of said engineering truck, and the cross-sectional plane of said first guide rail (61) takes the shape of the letter U, two sidewalls that have diapire and be positioned at the diapire both sides;
Second guide rail (62); Be arranged on the second place of the car body rear side of said engineering truck; The cross-sectional plane of said second guide rail (62) takes the shape of the letter U, two sidewalls that have diapire and be positioned at the diapire both sides, and the opening of the opening of said first guide rail (61) and said second guide rail (62) is against each other;
Said bearing set (5) comprising:
Clutch shaft bearing group (51) is arranged in said first guide rail (61), has clutch shaft bearing (511) that cooperates with the diapire of said first guide rail (61) and second bearing (512) that cooperates with the sidewall of said first guide rail (61);
Second bearing set (52) is arranged in said second guide rail (62), has the 4th bearing (522) that the third axle that cooperates with the diapire of said second guide rail (62) holds (521) and cooperates with the sidewall of said second guide rail (62).
3. the spare tyre jacking system of engineering truck according to claim 2 is characterized in that,
Said guide rail (6) also comprises the 3rd guide rail (63); Be arranged on the 3rd position of the car body rear side of said engineering truck; Be positioned between said first guide rail (61) and said second guide rail (62); The cross-sectional plane of said the 3rd guide rail (63) becomes U-shaped, two sidewalls that have diapire and be positioned at the diapire both sides, and the opening of said the 3rd guide rail (63) is towards the car body rear;
Said bearing set comprises that also third axle holds group (53), is arranged in said the 3rd guide rail (63), has the 5th bearing (531) that cooperates with the diapire of said the 3rd guide rail (63);
Said clutch shaft bearing group (51), said second bearing set (52) and said third axle hold group (53) and form leg-of-mutton three summits.
4. according to the spare tyre jacking system of each described engineering truck among the claim 1-3, it is characterized in that,
Said pulley assembly (7) comprising:
First movable pulley (71), fixing with said spare tyre mounting bracket (3);
First fixed pulley (72) is fixed on the car body of said engineering truck, is positioned at the top of said first movable pulley (71);
Second end of said chain rope (2) is fixed on the bearing of said first fixed pulley (72), and said chain rope (2) is around on said first movable pulley (71) and said first fixed pulley (72) from this second end in order.
5. the spare tyre jacking system of engineering truck according to claim 4 is characterized in that, said pulley assembly (7) also comprises second fixed pulley (73), wherein
Said second fixed pulley (73) is arranged between said first fixed pulley (72) and the said rope drawing machine structure;
Said chain rope (2) is around on said first movable pulley (71), said first fixed pulley (72), said second fixed pulley (73) and the said rope drawing machine structure from its second end in order.
6. the spare tyre jacking system of engineering truck according to claim 1 is characterized in that, said rope drawing machine structure is Worm and worm-wheel gearing (1),
Said worm-and-wheel gear (1) comprising:
Worm gear (11);
Worm screw (12) is provided with said worm gear (11) engagement;
Rope-winding wheel (13), its center is connected with the center of said worm gear (11); And
Handle (14) is connected with the rod end of said worm screw (12);
The receipts end of said rope drawing machine structure is positioned on the side face of said rope-winding wheel (13).
7. the spare tyre jacking system of engineering truck according to claim 1 is characterized in that, said spare tyre fixed sturcture is spare tyre fabricated section (31), and said spare tyre fabricated section (31) is in the form of annular discs, which is provided with the corresponding hole of mounting hole with said spare tyre (10).
8. the spare tyre jacking system of engineering truck according to claim 7 is characterized in that, has S. A. on the said spare tyre mounting bracket (3), and said spare tyre fabricated section (31) rotatably is sheathed on the said S. A..
9. an engineering truck is characterized in that, comprises each described spare tyre jacking system among the claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120271271U CN202130516U (en) | 2011-07-28 | 2011-07-28 | Engineering vehicle and spare wheel lifting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120271271U CN202130516U (en) | 2011-07-28 | 2011-07-28 | Engineering vehicle and spare wheel lifting device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202130516U true CN202130516U (en) | 2012-02-01 |
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ID=45519297
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120271271U Expired - Fee Related CN202130516U (en) | 2011-07-28 | 2011-07-28 | Engineering vehicle and spare wheel lifting device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202130516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975780A (en) * | 2012-12-11 | 2013-03-20 | 中联重科股份有限公司 | Engineering vehicle and spare tire rack thereof |
-
2011
- 2011-07-28 CN CN201120271271U patent/CN202130516U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975780A (en) * | 2012-12-11 | 2013-03-20 | 中联重科股份有限公司 | Engineering vehicle and spare tire rack thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee before: CHANGSHA ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20160728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |