CN213413430U - Tool vehicle for replacing tires - Google Patents

Abstract

The utility model discloses a tool vehicle for tire replacement, which comprises a crawler chassis, a portal frame which is vertically arranged, and a clamp which is arranged on the portal frame and is used for clamping or loosening a tire; establishing a rectangular coordinate system by taking the front-back direction of the crawler chassis as an X axis, the left-right direction of the crawler chassis as a Y axis and the height direction of the crawler chassis as a Z axis, wherein the bottom end of the portal is hinged with one end of the crawler chassis along the X axis direction through a first hinge shaft; the crawler type gantry crane is characterized in that a first telescopic cylinder used for supporting the gantry is connected between the crawler chassis and the gantry, one end of the first telescopic cylinder is hinged to the gantry through a second hinged shaft, the other end of the first telescopic cylinder is hinged to the crawler chassis through a third hinged shaft, and the first hinged shaft, the second hinged shaft and the third hinged shaft are all arranged along the Y-axis direction. Therefore, the lifting gantry is efficiently folded through the erecting oil cylinder, and the mechanical switching of the tool car between the transportation state and the working state is realized.

Description

Tool vehicle for replacing tires

Technical Field

The utility model relates to an engineering machine tool technical field especially relates to an instrument car for tire is changed.

Background

The replacement of the tires of the heavy-duty truck in the existing market mainly adopts a manual field replacement method, and the mode mainly adopts the steps that firstly, a jack is used for supporting an axle or a plate spring, so that the bolts are disassembled by a labor-saving wrench after the tires are lifted off the ground, and then the tires and the axle are manually separated by means of a crowbar. Since the tires of these large vehicles are heavy in weight, it is very labor-consuming to manually remove and replace the tires. A few trucks can be provided with the puller trolley to assist in dismounting and mounting tires, and the puller trolley occupies a large volume and space and is low in automation degree and not suitable for being configured on a vehicle.

The Chinese patent application CN 111070981A discloses a self-walking type folding tire quick-change vehicle, when the quick-change vehicle is folded and retracted, a bolt needs to be manually pulled out of a working bolt hole, and then a swing arm component is manually swung to enable the bolt to be inserted into the folding bolt hole, so that the degree of mechanization is low, and time and labor are wasted.

In addition, the conventional main wheeled tire trolley has poor cross-country performance, is not beneficial to field work and is easy to sink into the ground.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a folding instrument car that is used for the tire to change, realize the high-efficient folding of this instrument car through erecting the hydro-cylinder.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a tool vehicle for tire replacement comprises a crawler chassis, a vertically arranged portal frame and a clamp arranged on the portal frame, wherein the clamp is used for clamping or loosening a tire; establishing a rectangular coordinate system by taking the front-back direction of the crawler chassis as an X axis, the left-right direction of the crawler chassis as a Y axis and the height direction of the crawler chassis as a Z axis, wherein the bottom end of the portal is hinged with one end of the crawler chassis along the X axis direction through a first hinge shaft; the crawler type gantry crane is characterized in that a first telescopic cylinder used for supporting the gantry is connected between the crawler chassis and the gantry, one end of the first telescopic cylinder is hinged to the gantry through a second hinged shaft, the other end of the first telescopic cylinder is hinged to the crawler chassis through a third hinged shaft, and the first hinged shaft, the second hinged shaft and the third hinged shaft are all arranged along the Y-axis direction.

Therefore, the lifting gantry is efficiently folded through the erecting oil cylinder, and the mechanical switching of the tool car between the transportation state and the working state is realized. The folded quick-change vehicle can be placed in a tool cabin on the side surface of the vehicle-mounted guarantee vehicle, and other extra space is not occupied.

And the stretching of the erecting oil cylinder can realize the adjustment of pitching of the tire, the crawler belt can independently move forwards and backwards, the advancing and retreating adjustment of the tire can be realized by the same advancing and retreating, and the left and right deflection adjustment of the tire can be realized by the reverse advancing and retreating of the crawler belt.

As a further improvement of the above technical solution:

the gantry is connected with the clamp through a slewing bearing arranged along the X axis in the axial direction, so that the clamp can rotate relative to the gantry. The clamp is connected with the lifting portal frame through the slewing bearing, can rotate relatively, and can realize the adjustment of axial rotation of the tire.

The gantry comprises an outer gantry hinged to the crawler chassis and the first telescopic cylinder, and an inner gantry arranged in the outer gantry, the inner gantry is connected with the outer gantry in a sliding mode, the inner gantry can only move along the Z axis relative to the outer gantry, and the slewing bearing is mounted on the inner gantry.

And a second telescopic cylinder arranged along the Z-axis direction is connected between the outer gantry and the inner gantry. The second telescopic cylinder can realize the adjustment of the vertical height of the tire.

The clamp comprises two side holding legs arranged at intervals along the horizontal direction and an upper holding leg arranged above the two side holding legs, the two side holding legs and the upper holding leg form a triangular relation, and the upper holding leg and the side holding legs are used for abutting against the outer circumferential surface of the tire;

the two supporting leg structures are positioned in the same vertical plane, and the vertical plane is a plane formed by a Y axis and a Z axis; a clamp frame is arranged between the two side holding legs and the upper holding leg and is connected with the door frame;

the upper end of the clamp frame is connected with the upper holding leg through a third telescopic cylinder arranged along the Z-axis direction, the support leg structure comprises a swing leg and a connecting rod assembly, one end of the swing leg is connected with the side holding leg, the other end of the swing leg is hinged with the clamp frame, the middle of the swing leg is hinged with the connecting rod assembly through a fourth hinged shaft, and the fourth hinged shaft is perpendicular to a vertical plane formed by the two support leg structures; the connecting rod assembly is hinged to the upper holding leg and the clamp frame, and the connecting rod assembly can drive the swing leg to rotate around the fourth hinged shaft in a vertical plane formed by the two supporting leg structures under the driving of the third telescopic cylinder.

The connecting rod assembly comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is hinged to one end of the second connecting rod, one end of the third connecting rod is hinged to the fifth hinge shaft, the other end of the first connecting rod is hinged to the upper holding leg, the other end of the second connecting rod is hinged to the middle of the swing leg, and the other end of the third connecting rod is hinged to the clamp frame.

The expansion of the clamp oil cylinder can drive the opening and closing of the three clamping legs, so that the tires can be clasped and loosened.

The upper holding leg and the side holding leg are both opposite to the vertical plane and extend outwards, and the upper holding leg and the side holding leg can be folded to be parallel to the vertical plane.

And the fixture frame is provided with a mounting hole fixedly connected with the inner ring of the slewing bearing.

The crawler chassis comprises a crawler frame hinged with the door frame and crawlers respectively arranged on two sides of the crawler frame along the Y-axis direction, the crawler and the crawler frame are in sliding connection, and the crawler can only move relative to the crawler frame along the Y-axis direction to be close to or far away from the crawler frame. The left and right sides of the crawler belt can be independently stretched, and the adjustment of left and right translation of the tire can be realized.

And a fourth telescopic cylinder arranged along the Y-axis direction is connected between the crawler and the crawler frame.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a tool bogie for tire is changed realizes the high-efficient folding of lift portal through erecting the hydro-cylinder to realize the mechanized switching of tool bogie between transportation and operating condition. The folded quick-change vehicle can be placed in a tool cabin on the side surface of the vehicle-mounted guarantee vehicle, and other extra space is not occupied.

2. The utility model adopts a crawler-type traveling mechanism, which can solve the problem that the common quick-change vehicle can not cross-country in the field;

3. the tire moves forward and backward, swings left and right, translates left and right, pitches front and back, ascends and descends, rotates an axis, is clamped and clasped tightly by 8 degrees of freedom, and can completely solve the problem of alignment between the tire and the axle.

4. The three holding legs can be simultaneously loose and tight, thereby having good centering effect on the tire and avoiding the eccentric problem.

Drawings

Fig. 1 is a schematic structural view of the tool cart for tire replacement according to the present invention.

Fig. 2 is a schematic structural view of the crawler chassis.

Fig. 3 is a schematic structural diagram of the lifting gantry.

Fig. 4 is a schematic structural view of the jig.

Fig. 5 is a schematic view of the degrees of freedom of the tool car.

Fig. 6 is a schematic view of the folded tool wagon.

Fig. 7 is a schematic view of a tool cart entering the cabin.

Fig. 8 is a schematic view of the tool car being taken out of the cabin.

Illustration of the drawings: 1. a crawler chassis; 11. a track frame; 2. a first telescoping cylinder; 3. a gantry; 31. an outer gantry; 32. an inner gantry; 33. a second telescoping cylinder; 34. a slewing bearing; 4. a clamp; 41. carrying out upper leg holding; 42. a first link; 43. a clamp frame; 431. mounting holes; 44. a second link; 45. swinging legs; 46. a third link; 47. a third telescopic cylinder; 48. side holding legs; 5. a rotary motor; 6. a cover; 7. an electrical system; 8. and (4) operating the system.

Detailed Description

The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.

Example 1:

as shown in fig. 1, the tool wagon for tire replacement of the present embodiment includes a crawler chassis 1, a vertically arranged mast 3, and a jig 4 mounted on the mast 3. A rectangular coordinate system is established with the front-back direction of the crawler chassis 1 as the X axis, the left-right direction of the crawler chassis 1 as the Y axis, and the height direction of the crawler chassis 1 as the Z axis for explanation.

The crawler chassis 1 comprises a crawler frame 11 hinged with the gantry 3, and crawlers respectively arranged on two sides of the crawler frame 11 along the Y-axis direction. The crawler frame 11 is provided with a covering part 6, an electrical system 7 and an operating system 8.

The track and the track frame 11 are slidably connected, and the track can only move in the Y-axis direction with respect to the track frame 11 to approach or separate from the track frame 11. A fourth telescopic cylinder arranged along the Y-axis direction is connected between the crawler and the crawler frame 11.

As shown in fig. 2, the track includes a right track 12 and a left track 16, and the right track 12 and the left track 16 are horizontally slidably coupled to the track frame 11. Specifically, two large sleeves arranged at intervals along the X-axis direction are fixed at the bottom of the track frame 11, the large sleeves extend along the Y-axis direction, and a small sleeve is fixed at the end of the track opposite to the track frame 11, and the small sleeve is slidably arranged in the corresponding large sleeve.

The sliding connection of the track with the track frame 11 may also be arranged as follows: two sliding grooves along the Y-axis direction are formed in the bottom of the crawler frame 11, nylon sliding blocks are arranged in the sliding grooves in a sliding mode, and the nylon sliding blocks are fixedly connected with corresponding crawler belts.

The fourth telescopic cylinder comprises a right crawler horizontal cylinder 17 and a left crawler horizontal cylinder 15, and two ends of the right crawler horizontal cylinder 17 are respectively hinged with the right crawler 12 and the crawler frame 11; the left track horizontal cylinder 15 is hinged with the left track 16 and the track frame 11 at two ends.

A right walking motor 13 is arranged on the right crawler 12, a left walking motor 14 is arranged on the left crawler 16, and the right walking motor 13 and the left walking motor 14 rotate in the same direction to realize the forward and backward movement of the whole vehicle; the right walking motor 13 and the left walking motor 14 rotate reversely to realize left-turning and right-turning of the whole vehicle.

The left track horizontal cylinder 15 and the right track horizontal cylinder 17 contract simultaneously, the minimum size of the whole vehicle transportation is realized, the full-extension is realized, the working state is realized, the left track horizontal cylinder 15 and the right track horizontal cylinder 17 extend reversely, and the left-right translation of the whole vehicle top-loading is realized.

One end of the track frame 11 facing the gantry 3 is provided with a chassis hinge base 18 externally connected with the lifting gantry 3.

The bottom end of the portal 3 is hinged with a chassis hinge seat 18 through a first hinge shaft; be connected with first telescoping cylinder 2 that is used for supporting portal 3 between track chassis 1 and the portal 3, the one end of first telescoping cylinder 2 is articulated through second articulated shaft and portal 3, and the other end of first telescoping cylinder 2 is articulated through third articulated shaft and track chassis 1, and first articulated shaft, second articulated shaft and third articulated shaft all arrange along the Y axle direction.

The gantry 3 is connected to the clamp 4 through a slewing bearing 34 arranged along the X-axis in the axial direction, and a slewing motor 5 for driving an inner ring of the slewing bearing 34 to rotate is mounted on the gantry 3 so that the clamp 4 can slew with respect to the gantry 3. The gripper 4 is used to grip or release the tire.

As shown in fig. 3, the mast 3 comprises an outer mast 31 hinged to both the crawler chassis 1 and the first telescopic ram 2, and an inner mast 32 disposed inside the outer mast 31, the inner mast 32 and the outer mast 31 being slidably connected. Specifically, the inner wall surface of the door frame plate arranged along the Z-axis direction of the outer door frame 31 is provided with a sliding groove, and the outer wall surface of the inner door frame 32 facing the outer door frame 31 is provided with a sliding block, and the sliding block is slidably arranged in the corresponding sliding groove.

A second telescopic cylinder 33 arranged along the Z-axis direction is connected between the outer gantry 31 and the inner gantry 32, so that the inner gantry 32 can only move along the Z-axis relative to the outer gantry 31 and is fixed at a preset position. A slewing bearing 34 is mounted on the inner gantry 32.

The outer ring of the slewing bearing 34 is connected to the inner gantry 32 and the inner ring is connected to the clamp 4.

The lifting of the inner gantry 32 relative to the outer gantry 31, namely the lifting of the slewing bearing 34, is realized through the stretching of the second stretching cylinder 33; the rotation of the inner race relative to the outer race of the slewing drive 34 is achieved by the drive of the slewing motor 5.

As shown in fig. 4, the clamp 4 includes two side clasps 48 arranged at intervals in the horizontal direction, and an upper clasp 41 arranged above the two side clasps 48, the two side clasps 48 and the upper clasp 41 form a triangular relationship, and both the upper clasp 41 and the side clasps 48 are used for abutting against the outer circumferential surface of the tire.

A supporting leg structure is connected between the upper holding leg 41 and the side holding leg 48, the two supporting leg structures are positioned in the same vertical plane, and the vertical plane is a plane formed by a Y axis and a Z axis; a clamp frame 43 is arranged between the two side holding legs 48 and the upper holding leg 41, and the clamp frame 43 is provided with a mounting hole 431 fixedly connected with the inner ring of the slewing bearing 34.

The upper end of the clamp frame 43 is connected with the upper holding leg 41 through a third telescopic cylinder 47 arranged along the Z-axis direction, the support leg structure comprises a swing leg 45 and a connecting rod assembly, one end of the swing leg 45 is connected with a side holding leg 48, the other end of the swing leg 45 is hinged with the clamp frame 43, the middle part of the swing leg 45 is hinged with the connecting rod assembly through a fourth hinge shaft, and the fourth hinge shaft is perpendicular to a vertical plane formed by the two support leg structures; the connecting rod assembly is hinged to both the upper holding leg 41 and the clamp frame 43, and the connecting rod assembly can drive the swing leg 45 to rotate around a fourth hinged shaft in a vertical plane formed by the two leg structures under the driving of the third telescopic cylinder 47.

In this embodiment, the connecting rod assembly includes a first connecting rod 42, a second connecting rod 44 and a third connecting rod 46, one end of the first connecting rod 42, one end of the second connecting rod 44 and one end of the third connecting rod 46 are hinged through a fifth hinge shaft, the other end of the first connecting rod 42 is hinged with a support 49 on which the upper holding leg 41 is mounted, the other end of the second connecting rod 44 is hinged with the middle of the swing leg 45, and the other end of the third connecting rod 46 is hinged with the clamp frame 43.

The upper holding leg 41 and the side holding leg 48 both extend outwards relative to the vertical plane, and the upper holding leg 41 and the side holding leg 48 can be folded to be parallel to the vertical plane. The end of the upper hug leg 41 is provided with a downwardly extending stop 411, which stop 411 is intended to abut against the side of the tyre to prevent the tyre from tipping over.

The telescopic oil cylinder 47 stretches to drive the upper holding leg 41 to lift, the upper holding leg 41 lifts to drive the first connecting rod 42 and the third connecting rod 46 to move, the swing leg 45 is driven to swing left and right through the second connecting rod 44, the swing leg 45 is divided into left and right, and therefore the upper holding leg 41 on the support 49 and the side holding legs 48 on the left and right swing legs 45 achieve three-point clamping of the tire.

In the tool vehicle, the lifting portal frame 3 is hinged with the crawler chassis 1, the transportation and the working state switching of the lifting portal frame 3 are realized through the first telescopic cylinder 2 (the erecting oil cylinder), and the lifting portal frame 3 is connected with the clamp 4 through the slewing bearing.

The left and right crawler belts are connected with the crawler frame in a sliding mode and driven by the horizontal oil cylinders, the clamp is in a three-point clamping mode, and the simultaneous clamping of three clamping legs is realized through the expansion and contraction of the oil cylinders.

The tool car has the following degrees of freedom as shown in fig. 5:

1) the left and right crawler belts can independently move forward and backward, and move forward and backward simultaneously to realize forward and backward adjustment of the tire;

2) the left and right crawler belts advance and retreat reversely to realize the left and right deflection adjustment of the tire;

3) the left and right crawler belts can independently stretch and retract left and right, so that the left and right translation adjustment of the tire is realized;

4) the expansion of the vertical oil cylinder can realize the adjustment of the pitching of the tire;

5) a lifting oil cylinder is arranged in the lifting gantry, so that the vertical height of the tire can be adjusted;

6) the clamp is connected with the lifting portal frame through a slewing bearing and can rotate relatively, so that the axial rotation of the tire can be adjusted;

7) the expansion of the clamp oil cylinder can drive the opening and closing of the three clamping legs, so that the tires can be clasped and loosened.

The whole tool trolley folding mode is as follows:

the leg holding folding is parallel to the swing leg 45, the telescopic oil cylinder 47 extends fully to enable the right swing leg 45 to be close to the minimum, the slewing bearing 34 is rotated, the clamp rotates 180 degrees, the lifting oil cylinder 33 extends out to enable the clamp to be lifted to the maximum, the vertical oil cylinder 2 is contracted to enable the clamp 4 and the lifting door frame 3 to be parallel to the ground, the left track horizontal cylinder 15 and the right track horizontal cylinder 17 are contracted to the bottom, the right track 12 and the left track 16 are enabled to be close to the track frame 11, the transportation of the whole vehicle is achieved to the minimum size, and the tool vehicle after folding is shown in figure 6.

As shown in fig. 7 and 8, the tool wagon 100 can be moved in and out of the compartment by means of a connecting rod-cylinder lifting structure 9 in a storage compartment 10 on the transport wagon.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.

Claims (10)

1. The tool vehicle for tire replacement is characterized by comprising a crawler chassis (1), a vertically arranged portal frame (3) and a clamp (4) arranged on the portal frame (3), wherein the clamp (4) is used for clamping or loosening a tire; a rectangular coordinate system is established by taking the front-back direction of the crawler chassis (1) as an X axis, the left-right direction of the crawler chassis (1) as a Y axis and the height direction of the crawler chassis (1) as a Z axis, and the bottom end of the portal frame (3) is hinged with one end of the crawler chassis (1) along the X axis direction through a first hinge shaft; be connected with between track chassis (1) and portal (3) and be used for supporting first telescoping cylinder (2) of portal (3), the one end of first telescoping cylinder (2) is articulated through second articulated shaft and portal (3), the other end of first telescoping cylinder (2) is articulated through third articulated shaft and track chassis (1), first articulated shaft, second articulated shaft and third articulated shaft all arrange along Y axle direction.

2. A tool cart for tyre changing according to claim 1, characterized in that the gantry (3) is connected to the clamp (4) by means of a slewing bearing (34) arranged along the X-axis in the axial direction, so that the clamp (4) can be swiveled relative to the gantry (3).

3. A tool cart for tyre changing according to claim 2, characterized in that said mast (3) comprises an outer mast (31) articulated to both the crawler chassis (1) and the first telescopic cylinder (2), and an inner mast (32) arranged inside the outer mast (31), said inner mast (32) and outer mast (31) being slidably connected, and said inner mast (32) being movable only along the Z axis with respect to the outer mast (31), said slewing bearing (34) being mounted on said inner mast (32).

4. A tool cart for tyre changing according to claim 3, characterized in that a second telescopic cylinder (33) arranged in the Z-axis direction is connected between the outer gantry (31) and the inner gantry (32).

5. The tool vehicle for tire replacement as claimed in claim 2, wherein the clamp (4) comprises two side embracing legs (48) arranged at intervals along the horizontal direction, and an upper embracing leg (41) arranged above the two side embracing legs (48), the two side embracing legs (48) and the upper embracing leg (41) form a triangular relationship, and the upper embracing leg (41) and the side embracing leg (48) are used for abutting against the outer circumferential surface of the tire;

a supporting leg structure is connected between the upper holding leg (41) and the side holding leg (48), the two supporting leg structures are positioned in the same vertical plane, and the vertical plane is a plane formed by a Y axis and a Z axis; a clamp frame (43) is arranged between the two side holding legs (48) and the upper holding leg (41), and the clamp frame (43) is connected with the door frame (3);

the upper end of the clamp frame (43) is connected with the upper holding leg (41) through a third telescopic cylinder (47) arranged along the Z-axis direction, the supporting leg structure comprises a swing leg (45) and a connecting rod assembly, one end of the swing leg (45) is connected with a side holding leg (48), the other end of the swing leg (45) is hinged with the clamp frame (43), the middle part of the swing leg (45) is hinged with the connecting rod assembly through a fourth hinged shaft, and the fourth hinged shaft is perpendicular to a vertical plane formed by the two supporting leg structures; the connecting rod assembly is hinged to the upper holding leg (41) and the clamp frame (43), and the connecting rod assembly can drive the swing leg (45) to rotate around the fourth hinged shaft in a vertical plane formed by the two supporting leg structures under the driving of the third telescopic cylinder (47).

6. A tool cart for tyre changing according to claim 5, characterized in that said connecting rod assembly comprises a first connecting rod (42), a second connecting rod (44) and a third connecting rod (46), one end of said first connecting rod (42), one end of said second connecting rod (44) and one end of said third connecting rod (46) are hinged through a fifth hinge axis, the other end of said first connecting rod (42) is hinged with an upper hug leg (41), the other end of said second connecting rod (44) is hinged with a middle portion of a swing leg (45), and the other end of said third connecting rod (46) is hinged with a clamp frame (43).

7. A tool cart for tyre changing according to claim 5, wherein the upper hug leg (41) and the side hug leg (48) each extend outwardly relative to the vertical plane, the upper hug leg (41) and the side hug leg (48) each being foldable to be parallel to the vertical plane.

8. A tool vehicle for tyre replacement as claimed in claim 5, wherein the clamp frame (43) is provided with a mounting hole (431) for fixedly connecting with the inner ring of the slewing bearing (34).

9. A tool vehicle for tyre changing according to any one of claims 1-8, wherein the track chassis (1) comprises a track frame (11) articulated with the gantry (3), and tracks respectively provided on both sides of the track frame (11) in the Y-axis direction, the tracks and the track frame (11) being slidably connected, and the tracks being movable only relative to the track frame (11) in the Y-axis direction to approach or depart from the track frame (11).

10. A tool vehicle for tyre changing according to claim 9, characterised in that a fourth telescopic cylinder arranged in the Y-axis direction is connected between the track and the track frame (11).

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