CN219215022U - Width-adjustable cab apron folding mechanism - Google Patents
Width-adjustable cab apron folding mechanism Download PDFInfo
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- CN219215022U CN219215022U CN202222527880.0U CN202222527880U CN219215022U CN 219215022 U CN219215022 U CN 219215022U CN 202222527880 U CN202222527880 U CN 202222527880U CN 219215022 U CN219215022 U CN 219215022U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a width-adjustable cab apron folding mechanism which comprises a folding mechanism and a width-adjusting mechanism of cab apron, wherein the folding mechanism is connected between two split cab apron. The principle of width adjustment: the distance between the two cab apron is controlled by a pair of double-acting single-piston rod combined hydraulic cylinders or a scissor slide block mechanism, so that the working width of the cab apron is adjusted. Principle of folding the cab apron: the motion formed by the cab apron and the arc triangular block is equivalent to the deformation motion of the four-bar mechanism. The lug end of each hydraulic cylinder is connected by adopting spherical pairs, so that the radial force of the hydraulic cylinder can be eliminated, and the safety of a hydraulic system is improved. Besides being capable of flexibly controlling synchronous folding or unfolding of the cab apron on two sides, the cab apron folding mechanism can be matched with adjusting of working width of the cab apron, working application range of the cab apron is widened, and goods such as engineering vehicles with different widths can be loaded and unloaded in an auxiliary mode. The folding mechanism is arranged between the cab apron and does not influence the folding of the cab apron.
Description
Technical Field
The utility model relates to the field of loading and unloading equipment, in particular to a width-adjustable cab apron folding mechanism.
Background
The cab apron is transitional loading and unloading equipment arranged at the tail part or the side surface of the flat car, can be used for loading and unloading large-scale machinery of a railway transportation flat car, is used for loading and unloading cargoes by an automobile, and can also be used for occasions needing loading and unloading cargoes such as ferry. The existing ferry board folding mechanism which is continuously developed on the market approximately has the following two conditions, one is that the ferry board folding mechanism is arranged below the ferry boards, and the folding movement of the two ferry boards is controlled by the combination of two hydraulic cylinders, so that the two ferry boards cannot be folded completely, and the space occupied by the folded ferry boards is relatively large; the other is that the folding mechanism is arranged on the outer side of the cab apron, and each side is controlled by two hydraulic cylinders in a combined mode to unfold and fold the cab apron, so that the folding can be realized, but the number of the hydraulic cylinders is too large, a hydraulic system is complex, and the problems of ultra wide, overrun and the like exist. Meanwhile, the two cab apron folding mechanisms have a problem: can only assist in loading and unloading goods with specific width, and has great limitation in application range. Aiming at the problems, the width-adjustable cab apron folding mechanism for the transportation flatcar is designed on the basis of the prior art.
Disclosure of Invention
The utility model aims to provide a width-adjustable cab apron folding mechanism which has the functions of controlling extension and folding of the cab apron, can adjust the working width of the cab apron and widen the application range of the cab apron, and besides, the folding mechanism is not ultra-wide and ultra-limited so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the width-adjustable cab apron folding mechanism comprises a rotary platform, a folding mechanism and a width adjusting mechanism, wherein a main shaft supporting seat is fixed in the middle of one end face of the rotary platform, a cab apron connecting main shaft is sleeved in the main shaft supporting seat, two end parts of the cab apron connecting main shaft are respectively sleeved with a sliding main shaft sleeve, the sliding main shaft sleeve can slide on the cab apron connecting main shaft, and the width adjusting mechanism is arranged between two upper cab apron;
the folding mechanism comprises two upper cab apron, an arc triangular block, two lower cab apron, a first hydraulic cylinder and a second hydraulic cylinder; the sliding main shaft sleeves on two sides are fixedly connected with the upper ends of the upper cab apron on two sides respectively, the upper cab apron on two sides and the lower cab apron are hinged through pin shafts, an arc triangular block is arranged at the joint, a first angle of the arc triangular block is in sliding connection with the inner side of the upper cab apron, a second angle of the arc triangular block is hinged with the inner side of the lower cab apron, and a third angle of the arc triangular block is hinged with the end part of the first tension rod;
the first tension rod comprises a sleeve and a mandrel, two ends of the sleeve are respectively and slidably connected with the mandrel, the end part of the mandrel, which is far away from the sleeve, is hinged with a third angle of the arc triangular block, and a spherical pair on the sleeve is connected with one end of the second hydraulic cylinder;
the approaching parts of the first hydraulic cylinder and the second hydraulic cylinder are respectively connected with the hydraulic cylinder supporting mechanism through spherical pairs, and one end of the first hydraulic cylinder, which is far away from the second hydraulic cylinder, is connected with the main shaft supporting seat through spherical pairs.
Preferably, a sliding groove is formed in the inner side surface of one end portion, far away from the direction of the rotary platform, of each upper cab apron, and the sliding groove is in sliding connection with a first corner of the arc triangular block through a pin.
Preferably, a floating block is mounted on the lower end face of the lower ferry plate.
Preferably, the width adjusting mechanism includes: the double-acting single-piston rod combined hydraulic cylinder is formed by combining two single-piston rod hydraulic cylinders which are arranged back to back, the two double-acting single-piston rod combined hydraulic cylinders are respectively fixedly arranged at the upper end and the lower end of the oil way bracket through fixing seats, and the distance between the cab apron plates at two sides is adjusted through working; the two ends of the double-acting single-piston-rod combined hydraulic cylinder at the upper end are respectively connected with one side of the sliding main shaft sleeve at the two sides through spherical pairs, and the two ends of the double-acting single-piston-rod combined hydraulic cylinder at the lower end are respectively connected with the inner sides of the lower cab apron at the two sides through spherical pairs; the hydraulic cylinder supporting mechanism is two first connecting rods fixedly arranged in the middle of the oil way bracket; the upper end of the oil way support is sleeved and arranged on the cab apron connecting spindle, the lower end of the oil way support is sleeved and arranged on the second rotating rod, two ends of the second rotating rod are fixedly connected with pin shafts on two sides, the second rotating rod comprises a sleeve and a mandrel, two ends of the sleeve are respectively and slidably connected with a mandrel, and the end part, far away from the sleeve, of the mandrel is fixedly connected with the pin shafts.
Preferably, both ends of the second rotating rod are always arranged in the arc-shaped grooves of the arc-shaped triangular blocks.
Preferably, the width adjusting mechanism includes: the third hydraulic cylinder, the shearing fork mechanism, the second connecting rod and the guide rail; and one end of a piston rod extending out of the third hydraulic cylinder is coaxially hinged with one ends of the two second connecting rods, and the shearing fork mechanism comprises: the inner surfaces of the middle parts of one sides of the first shear rod and the second shear rod, which are close to the rotary platform, are respectively hinged with the other ends of the adjacent second connecting rods, the end parts of the first shear rod and the second shear rod, which are close to the rotary platform, are respectively fixed with a sliding block, the inner side of each upper cab apron is provided with a guide rail which is in sliding connection with the sliding block, and the end parts of the first shear rod and the second shear rod, which are far away from the rotary platform, are respectively hinged with the inner side surfaces of the upper cab apron; the middle part of the cab apron connecting main shaft is connected with an ear end spherical pair of the third hydraulic cylinder; the hydraulic cylinder supporting mechanism is a second tension rod, and two ends of the second tension rod are fixedly connected with the inner side surfaces of the upper cab apron on two sides.
Preferably, the spherical pair connection adopts spherical connection of a spherical shell and a sphere.
Compared with the prior art, the utility model has the beneficial effects that:
the width adjusting mechanism is arranged, the hydraulic system is used as a drive, and the working width of the cab apron is adjusted by changing the distance between the two cab apron, so that the working range of the cab apron is wider, and the requirements of customers are better met.
The folding mechanism is integrally arranged between the transition plates at two sides, is not ultra-wide and ultra-limited, and has compact structure and relatively regular structure. The folding principle adopts the four-bar mechanism evolution principle, and the movement formed by the cab apron and the arc triangular block is equivalent to the deformation movement of the four-bar mechanism, so that the strength of the component is improved under the condition of meeting the four-bar mechanism movement principle, and the safety of the folding mechanism is ensured. The oil way support in the first embodiment is used as the main body of the cab apron folding mechanism, one end shaft hole is connected to the cab apron connecting main shaft, one end shaft hole is connected to the middle of the cab apron, and the oil way support rotates along with the rotation of the upper cab apron, so that the normal operation of a hydraulic cylinder arranged on the oil way support is ensured, and meanwhile, the inside of the oil way support is hollow, and the hydraulic oil way is arranged inside, so that the oil way of a hydraulic system is concise and clear. The shearing fork mechanism in the second embodiment is used as a main mechanism for adjusting the working width of the cab apron, so that the number of hydraulic cylinders is reduced and a hydraulic system is simplified when the working width of the cab apron is adjusted.
The end parts of the hydraulic cylinders are connected by adopting spherical pairs, so that the radial force born by the hydraulic cylinders is eliminated, and when the cab apron is subjected to load bending deformation, the clearance fit between the spherical shell and the sphere can be utilized to compensate the small deformation difference between the cab apron and the folding mechanism, thereby eliminating the additional radial force of the hydraulic cylinders and ensuring the safety of the hydraulic cylinders.
In general, the folding mechanism not only can flexibly control the synchronous folding or unfolding of the cab apron on two sides, but also can adjust the working width of the cab apron, widens the working application range of the cab apron, and can assist in loading and unloading cargoes with different widths. The folding mechanism is arranged between the cab apron without influencing the complete folding and folding of the cab apron, and when the cab apron works, the hydraulic system is safe due to the connection of the spherical pair.
Drawings
FIG. 1 is a schematic diagram of the main structure of embodiment 1 of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic diagram of the main structure of embodiment 2 of the present utility model;
FIG. 4 is a partial enlarged view at B in FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 3 at C;
FIG. 6 is a partial enlarged view at D in FIG. 4;
FIG. 7 is a schematic view of the angular distribution of the arc triangular blocks;
FIG. 8 is a schematic diagram of a spherical pair connection;
FIG. 9 is a folded collapsed state diagram of the present utility model;
FIG. 10 is a state diagram of the deployment motion of the present utility model;
FIG. 11 is a diagram illustrating the use of the present utility model;
fig. 12 is a graph showing a width change of the folded cab apron according to embodiment 1 of the present utility model.
In the figure: 1. the device comprises a rotary platform, 2, a folding mechanism, 3, a width adjusting mechanism, 4, a transportation flatcar, 1.1, a main shaft supporting seat, 2.1, an upper cab apron, 2.2, a cab apron connecting main shaft, 2.3, an arc triangular block, 2.4, a lower cab apron, 2.5, an oil path bracket, 2.6, a second rotating rod, 2.7, a first connecting rod, 2.8, a first hydraulic cylinder, 2.9, a second hydraulic cylinder, 3.1, a double-acting single-piston rod combined hydraulic cylinder, 3.2, a sliding main shaft sleeve, 4.1, a third hydraulic cylinder, 4.2, a shearing fork mechanism, 4.3, a second connecting rod, 4.4, a guide rail, 2.21, a chute, 2.41, an arc groove, 2.42, a first tension rod, 2.43, a second tension rod, 2.51, a fixed seat, 2.61, a pin, 2.62, a spherical shell, 2.63, a floating block, 3.11, a sphere, 4.21, a first rod, 4.22, a second sliding block and 4.23.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Please refer to fig. 1-12.
Example 1: the utility model provides a technical scheme that: the width-adjustable cab apron folding mechanism comprises a rotary platform 1, a folding mechanism 2 and a width adjusting mechanism 3, wherein a main shaft supporting seat 1.1 is fixedly welded in the middle of one end face of the rotary platform 1, a cab apron connecting main shaft 2.2 is sleeved in the main shaft supporting seat 1.1, two end parts of the cab apron connecting main shaft 2.2 are respectively sleeved with a sliding main shaft sleeve 3.2, the sliding main shaft sleeve 3.2 can slide on the cab apron connecting main shaft 2.2, and the width adjusting mechanism 3 is arranged between the two upper cab apron 2.1;
the folding mechanism 2 comprises two upper cab apron 2.1, an arc triangular block 2.3, two lower cab apron 2.4, a first hydraulic cylinder 2.8 and a second hydraulic cylinder 2.9; the sliding main shaft sleeves 3.2 on two sides are respectively fixedly connected with the upper ends of the upper cab apron 2.1 on two sides, the sliding main shaft sleeves 3.2 can slide on the cab apron connecting main shaft 2.2 with the upper cab apron 2.1 through adjustment of the width adjusting mechanism, so that the interval between the cab apron on the left side and the right side is changed, the working width of the cab apron is adjusted, the upper cab apron 2.1 and the lower cab apron 2.4 on two sides are hinged through pin shafts 2.61, an arc triangular block 2.3 is arranged at the joint, a first angle of the arc triangular block 2.3 is in sliding connection with the inner side of the upper cab apron 2.1, a second angle of the arc triangular block 2.3 is hinged with the inner side of the lower cab apron 2.4, and a third angle of the arc triangular block 2.3 is hinged with the end part of the first tension rod 2.42; the inner side surface of one end part of each upper cab apron 2.1 far away from the direction of the rotary platform 1 is provided with a chute 2.21, and the chute 2.21 is in sliding connection with a first corner of the arc triangular block 2.3 through a pin.
The first tension rod 2.42 comprises a sleeve and a mandrel, two ends of the sleeve are respectively and slidably connected with the mandrel, the end, far away from the sleeve, of the mandrel is hinged with a third angle of the arc triangular block 2.3, and a spherical pair on the sleeve is connected with one end of the second hydraulic cylinder 2.9; when the working width of the cab apron is widened, the two mandrels are pulled outwards, and when the working width of the cab apron is narrowed, the two mandrels are retracted inwards, but the mandrels cannot be separated from the sleeve, so that the driving force of the second hydraulic cylinder 2.9 is transmitted to the sleeve, the sleeve is transmitted to the mandrel, and the mandrel is transmitted to the arc triangular block 2.3.
The approaching parts of the first hydraulic cylinder 2.8 and the second hydraulic cylinder 2.9 are respectively connected with a hydraulic cylinder supporting mechanism by spherical pairs, and the hydraulic cylinder supporting mechanism is provided with two first connecting rods 2.7 fixedly arranged in the middle of the oil way bracket 2.5; one end of the first hydraulic cylinder 2.8 far away from the second hydraulic cylinder 2.9 is connected with the main shaft supporting seat 1.1 through a spherical pair.
The width adjusting mechanism 3 includes: the double-acting single-piston-rod combined hydraulic cylinder 3.1, the oil way support 2.5 and the second rotating rod 2.6 are combined, the double-acting single-piston-rod combined hydraulic cylinder 3.1 is formed by combining two single-piston-rod hydraulic cylinders which are arranged back to back, and the two double-acting single-piston-rod combined hydraulic cylinders 3.1 are fixedly arranged at the upper end and the lower end of the oil way support 2.5 respectively through fixing seats 2.51 and simultaneously work to adjust the distance between two side cab apron plates; the two ends of the double-acting single-piston-rod combined hydraulic cylinder 3.1 at the upper end are respectively connected with one side of the sliding main shaft sleeve 3.2 at the two sides by spherical pairs, and the two ends of the double-acting single-piston-rod combined hydraulic cylinder 3.1 at the lower end are respectively connected with the inner sides of the lower cab apron 2.4 at the two sides by spherical pairs; the oil way support 2.5 is used as a main body of the cab apron folding mechanism, the upper end of the oil way support 2.5 is sleeved and installed on the cab apron connecting main shaft 2.2, the lower end of the oil way support is sleeved and installed on the second rotating rod 2.6, two ends of the second rotating rod 2.6 are fixedly connected with the pin shafts 2.61 on two sides, the second rotating rod 2.6 comprises a sleeve and a mandrel along with the rotation of the upper cab apron 2.1, two ends of the sleeve are respectively and slidably connected with the mandrel, the end part, far away from the sleeve, of the mandrel is fixedly connected with the pin shaft 2.61, and the telescopic principle of the second rotating rod 2.6 is the same as that of the first tension rod 2.42. Both ends of the second rotating rod 2.6 are always arranged in the arc-shaped grooves 2.41 of the arc-shaped triangular blocks 2.3.
The floating blocks 2.63 are arranged on the lower end face of the lower cab apron 2.4, and when the ground is uneven, the floating blocks can be transitionally adapted to the uneven ground.
The working principle of expanding and folding the cab apron is as follows: the hydraulic system is controlled, the first hydraulic cylinder 2.8 and the second hydraulic cylinder 2.9 are driven to control the folding mechanism 2 to fold and unfold, when the folding mechanism is unfolded, the first hydraulic cylinder 2.8 stretches out and acts on the first connecting rod 2.7 on the oil way support 2.5, the oil way support 2.5 can be pushed to unfold with the upper cab apron 2.1, the second hydraulic cylinder 2.9 stretches out and pushes the first tension rod 2.42, the first tension rod 2.42 pushes the arc triangular block 2.3 to move, and the lower cab apron 2.4 is controlled to unfold. When folding, the first hydraulic cylinder 2.8 and the second hydraulic cylinder 2.9 retract, and the mechanisms move in opposite directions to fold.
The working principle of width adjustment is as follows: the upper double-acting single-piston rod combined hydraulic cylinder 3.1 and the lower double-acting single-piston rod combined hydraulic cylinder 3.1 are controlled simultaneously, the upper double-acting single-piston rod combined hydraulic cylinder 3.1 pushes the sliding main shaft sleeve 3.2 on two sides, the sliding main shaft sleeve 3.2 slides on the cab apron connecting main shaft 2.2, the distance between the two upper cab apron 2.1 can be adjusted, meanwhile, the lower double-acting single-piston rod combined hydraulic cylinder 3.1 below pushes the lower cab apron 2.4 on two sides, so that the upper cab apron 2.1 and the lower cab apron 2.4 move simultaneously, the working width of the cab apron is adjusted, the working application range of the cab apron is widened, and cargos with different widths can be assisted in loading and unloading.
The spherical pair connection adopts spherical connection of the spherical shell 2.62 and the sphere 3.11, the spherical pair connection can eliminate the radial force of the hydraulic cylinder, and when the cab apron is subjected to load bending deformation, the clearance fit between the spherical shell 2.62 and the sphere 3.11 can be utilized to compensate the tiny deformation difference of the cab apron and the folding mechanism, so that the additional radial force of the hydraulic cylinder is eliminated, and the safety of the hydraulic cylinder is ensured.
Example 2: the width adjusting mechanism 3 includes: the third hydraulic cylinder 4.1, the scissor mechanism 4.2, the second connecting rod 4.3 and the guide rail 4.4; the third hydraulic cylinder 4.1 drives the shearing fork mechanism 4.2 to move to control the interval size of the cab apron at two sides, thereby adjusting the working width of the cab apron. The shearing fork mechanism 4.2 is used as a main mechanism for adjusting the working width of the cab apron, so that the number of hydraulic cylinders is reduced and a hydraulic system is simplified when the working width of the cab apron is adjusted. The method comprises the following steps: one end of a piston rod extending out of the third hydraulic cylinder 4.1 is coaxially hinged with one ends of two second connecting rods 4.3, and the shearing fork mechanism 4.2 comprises: the middle parts of the first shearing rods 4.21 and the second shearing rods 4.22 are crossed and hinged, the inner surfaces of the middle parts of one sides of the first shearing rods 4.21 and the second shearing rods 4.22, which are close to the rotary platform 1, are respectively hinged with the other ends of the adjacent second connecting rods 4.3, the end parts of one ends of the first shearing rods 4.21 and the second shearing rods 4.22, which are close to the rotary platform 1, are respectively fixed with a sliding block 4.23, the inner side of each upper cab apron 2.1 is provided with a guide rail 4.4 which is in sliding connection with the sliding block 4.23, and the end parts of one ends of the first shearing rods 4.21 and the second shearing rods 4.22, which are far away from the rotary platform 1, are hinged with the inner side surfaces of the upper cab apron 2.1; the middle part of the cab apron connecting main shaft 2.2 is connected with an ear end spherical pair of the third hydraulic cylinder 4.1; in the embodiment, the hydraulic cylinder supporting mechanism is a second tension rod 2.43, and two ends of the second tension rod 2.43 are fixedly connected with the inner side surfaces of the upper cab apron 2.1 on two sides.
The working principle is as follows: the hydraulic system is controlled, the third hydraulic cylinder 4.1 is driven, the third hydraulic cylinder 4.1 pushes two second connecting rods 4.3, the two second connecting rods 4.3 push the first shearing rods 4.21 and the second shearing rods 4.22, and the ends of the first shearing rods 4.21 and the second shearing rods 4.22 push the upper ferrying plates 2.1 on two sides to move, so that the working width of the ferrying plates is adjusted. The remaining features are the same as in example 1.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a cab apron folding mechanism of adjustable width which characterized in that: the device comprises a rotary platform (1), a folding mechanism (2) and a width adjusting mechanism (3), wherein a main shaft supporting seat (1.1) is fixed in the middle of one end face of the rotary platform (1), a cab apron connecting main shaft (2.2) is sleeved in the main shaft supporting seat (1.1), two ends of the cab apron connecting main shaft (2.2) are respectively sleeved with a sliding main shaft sleeve (3.2), the sliding main shaft sleeve (3.2) can slide on the cab apron connecting main shaft (2.2), and the width adjusting mechanism (3) is arranged between the two upper cab apron (2.1);
the folding mechanism (2) comprises two upper cab apron (2.1), an arc triangular block (2.3), two lower cab apron (2.4), a first hydraulic cylinder (2.8) and a second hydraulic cylinder (2.9); the sliding main shaft sleeves (3.2) on two sides are fixedly connected with the upper ends of the upper cab apron (2.1) on two sides respectively, the upper cab apron (2.1) and the lower cab apron (2.4) on two sides are hinged through pin shafts (2.61), arc triangular blocks (2.3) are arranged at the connecting positions, a first corner of each arc triangular block (2.3) is slidably connected with the inner side of the upper cab apron (2.1), a second corner of each arc triangular block (2.3) is hinged with the inner side of the lower cab apron (2.4), and a third corner of each arc triangular block (2.3) is hinged with the end part of the first tension rod (2.42);
the first tension rod (2.42) comprises a sleeve and a mandrel, two ends of the sleeve are respectively and slidably connected with the mandrel, the end, far away from the sleeve, of the mandrel is hinged with a third angle of the arc triangular block (2.3), and a spherical pair on the sleeve is connected with one end of the second hydraulic cylinder (2.9);
the approaching parts of the first hydraulic cylinder (2.8) and the second hydraulic cylinder (2.9) are respectively connected with the hydraulic cylinder supporting mechanism through spherical pairs, and one end of the first hydraulic cylinder (2.8) far away from the second hydraulic cylinder (2.9) is connected with the main shaft supporting seat (1.1) through spherical pairs.
2. The width-adjustable cab apron folding mechanism of claim 1, wherein: each upper cab apron (2.1) is far away from the inner side surface of one end part of the direction of the rotary platform (1) and is provided with a sliding groove (2.21), and the sliding groove (2.21) is in sliding connection with a first corner of the arc triangular block (2.3) through a pin.
3. The width-adjustable cab apron folding mechanism of claim 2, wherein: and a floating block (2.63) is arranged on the lower end surface of the lower ferry plate (2.4).
4. A width-adjustable cab apron folding mechanism according to claim 3, wherein: the width adjusting mechanism (3) comprises: the double-acting single-piston-rod combined hydraulic cylinder (3.1), the oil way support (2.5) and the second rotating rod (2.6), the double-acting single-piston-rod combined hydraulic cylinder (3.1) is formed by combining two single-piston-rod hydraulic cylinders which are arranged back to back, and the two double-acting single-piston-rod combined hydraulic cylinders (3.1) are fixedly arranged at the upper end and the lower end of the oil way support (2.5) respectively through fixing seats (2.51) and simultaneously work to adjust the distance between transition plates at two sides; the two ends of the double-acting single-piston-rod combined hydraulic cylinder (3.1) at the upper end are respectively connected with one side of the sliding main shaft sleeve (3.2) at the two sides by spherical pairs, and the two ends of the double-acting single-piston-rod combined hydraulic cylinder (3.1) at the lower end are respectively connected with the inner sides of the lower transition plates (2.4) at the two sides by spherical pairs; the hydraulic cylinder supporting mechanism is provided with two first connecting rods (2.7) fixedly arranged in the middle of the oil way bracket (2.5); the upper end of the oil way support (2.5) is sleeved and installed on the cab apron connecting main shaft (2.2), the lower end of the oil way support is sleeved and installed on the second rotating rod (2.6), two ends of the second rotating rod (2.6) are fixedly connected with the pin shafts (2.61) on two sides, the second rotating rod (2.6) comprises a sleeve and a mandrel, two ends of the sleeve are respectively and slidably connected with the mandrel, and the end, far away from the sleeve, of the mandrel is fixedly connected with the pin shafts (2.61).
5. The width-adjustable cab apron folding mechanism of claim 4, wherein: both ends of the second rotating rod (2.6) are always arranged in the arc-shaped grooves (2.41) of the arc-shaped triangular blocks (2.3).
6. A width-adjustable cab apron folding mechanism according to claim 3, wherein: the width adjusting mechanism (3) comprises: the third hydraulic cylinder (4.1), the shearing fork mechanism (4.2), the second connecting rod (4.3) and the guide rail (4.4); one end of a piston rod extending out of the third hydraulic cylinder (4.1) is coaxially hinged with one ends of two second connecting rods (4.3), and the shearing fork mechanism (4.2) comprises: the first shearing rods (4.21) and the second shearing rods (4.22) are crossed and hinged at the middle parts of the first shearing rods (4.21) and the second shearing rods (4.22), the inner surfaces of the middle parts of one sides of the first shearing rods (4.21) and the second shearing rods (4.22) close to the rotary platform (1) are respectively hinged with the other ends of the adjacent second connecting rods (4.3), the end parts of the first shearing rods (4.21) and the end parts of the second shearing rods (4.22) close to the rotary platform (1) are respectively fixed with a sliding block (4.23), the inner side of each upper cab apron (2.1) is provided with a guide rail (4.4) which is in sliding connection with the sliding block (4.23), and the end parts of the first shearing rods (4.21) and the end parts of the second shearing rods (4.22) far away from the rotary platform (1) are respectively hinged with the inner side surfaces of the upper cab apron (2.1); the middle part of the cab apron connecting main shaft (2.2) is connected with an ear end spherical pair of the third hydraulic cylinder (4.1); the hydraulic cylinder supporting mechanism is a second tension rod (2.43), and two ends of the second tension rod (2.43) are fixedly connected with the inner side surfaces of the upper ferrying plates (2.1) on two sides.
7. A width-adjustable cab apron folding mechanism according to claim 5 or 6, wherein: the spherical pair is connected with a spherical shell (2.62) and a spherical body (3.11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222527880.0U CN219215022U (en) | 2022-09-23 | 2022-09-23 | Width-adjustable cab apron folding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222527880.0U CN219215022U (en) | 2022-09-23 | 2022-09-23 | Width-adjustable cab apron folding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219215022U true CN219215022U (en) | 2023-06-20 |
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ID=86758872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222527880.0U Active CN219215022U (en) | 2022-09-23 | 2022-09-23 | Width-adjustable cab apron folding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219215022U (en) |
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2022
- 2022-09-23 CN CN202222527880.0U patent/CN219215022U/en active Active
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