CN211310589U

CN211310589U - Stable in structure's two roof beam driving

Info

Publication number: CN211310589U
Application number: CN201921670980.0U
Authority: CN
Inventors: 高炳兴
Original assignee: Taicang Steel Heavy Machinery Roll Co ltd
Current assignee: Taicang Steel Heavy Machinery Roll Co ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-08-21
Anticipated expiration: 2029-10-08

Abstract

A double-beam traveling crane with a stable structure belongs to the technical field of manufacturing of general mechanical equipment and comprises a cement upright post, a vehicle beam, a base plate, a traveling crane track and a double-beam traveling crane, wherein the cross section of the traveling crane track is in a shape of Chinese character 'shi'; the double-beam traveling crane comprises a first horizontal beam, a second horizontal beam, a first supporting beam, a second supporting beam, a driving assembly, a driving driven assembly and a set of driving guiding limiting assemblies, the cross sections formed by the first horizontal beam, the second horizontal beam, the first supporting beam and the second supporting beam are of a 'II' type, and the two ends of the first supporting beam and the two ends of the second supporting beam are provided with the driving guiding limiting assemblies. Stable in structure's two roof beam driving, the two roof beam driving structure of setting all can set up the electric hoist on two horizontal beam, carry out work alone respectively, improved adaptability for above-mentioned structure is applicable to different orbital uses of driving, and what this two roof beam driving can be stable removes, job stabilization is reliable.

Description

Stable in structure's two roof beam driving

Technical Field

The utility model belongs to the technical field of general mechanical equipment makes, specifically, relate to a stable in structure's two roof beam driving.

Background

The double-beam bridge crane generally refers to a double-beam bridge crane, and the double-beam bridge crane is an important tool and equipment for realizing mechanization and automation of the production process in modern industrial production and hoisting transportation, so that the double-beam bridge crane is widely applied to departments and places such as indoor and outdoor industrial and mining enterprises, steel chemical industry, railway traffic, ports and docks, logistics turnover and the like.

The double-beam traveling crane generally comprises three major parts, namely a mechanical part, an electrical part and a metal structure, wherein the mechanical part comprises a hoisting mechanism, a trolley running mechanism and a cart running mechanism. The hoisting mechanism is used for vertically lifting articles, the trolley running mechanism is used for driving the load to move transversely, and the cart running mechanism is used for longitudinally moving the hoisting trolley and the articles so as to achieve the purposes of carrying, loading and unloading the articles in a three-dimensional space; the metal structure part consists of a bridge frame and a trolley frame; the electrical part consists of electrical equipment and electrical lines.

The travelling crane trolley is an important part of a double-beam travelling crane, and has the main functions of not only placing a motor, a lifting hook, a winding drum, a gearbox and the like, but also transversely walking on a travelling crane beam. In the process of traveling on the cross beam, the traveling structure on two sides of the traveling crane is stressed unevenly due to the fact that a heavy object is hung on the traveling crane, and the traveling crane is blocked and unsmooth in traveling.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a stable in structure's two roof beam driving has solved prior art, and during the driving atress walking, can not keep the problem of the stable walking of driving.

The technical scheme is as follows: the utility model provides a stable in structure's two roof beam driving, including cement stand, car roof beam, backing plate, driving track and two roof beam driving, the car roof beam sets up on the up end of cement stand, the backing plate sets up on the up end of car roof beam, the driving track is fixed to be set up on the backing plate, two roof beam driving racks are established on the driving track to two roof beam driving can be along the reciprocating motion of driving track, the cross-section of driving track is "shi" style of calligraphy; the double-beam traveling crane comprises a first horizontal beam, a second horizontal beam, a first supporting beam, a second supporting beam, a driving assembly, a driving driven assembly and a set of driving guiding limiting assembly, wherein the first horizontal beam and the second horizontal beam are arranged in parallel, the two ends of the first horizontal beam and the second horizontal beam are arranged on the first supporting beam and the second supporting beam through bolts, the cross section formed by the first horizontal beam, the second horizontal beam, the first supporting beam and the second supporting beam is of a type II, the driving assembly and the driving driven assembly are arranged on the first supporting beam and the second supporting beam, and the two ends of the first supporting beam and the two ends of the second supporting beam are provided with the driving guiding limiting assemblies.

Furthermore, the driving assembly of the stable-structure double-beam crane comprises a driving motor, a driving rotating shaft, a group of rotating shaft supporting seats, driving travelling wheels and driving assembly supporting beams, two ends of the driving active assembly supporting beam are fixedly arranged on the first supporting beam and the second supporting beam, and the driving active component supporting beam is positioned on one side of the horizontal beam I far away from the horizontal beam II, the active driving motor is arranged on the driving active component supporting beam, and the driving motor is connected with a driving rotating shaft through transmission of straight bevel gears, the driving rotating shaft is arranged on a group of rotating shaft supporting seats, a set of pivot supporting seat is fixed to be set up on driving initiative subassembly supporting beam, the both ends of initiative pivot are stretched into supporting beam one and supporting beam two in to the both ends that initiative pivot is located supporting beam one and supporting beam two are equipped with the driving wheel.

Further, foretell stable in structure's two roof beams driving, driving driven assembly includes driven spindle, a set of pivot supporting seat, driven road wheel and driving driven assembly supporting beam, driving driven assembly supporting beam's both ends are fixed to be set up on a set of pivot supporting seat and a supporting beam two to driving driven assembly supporting beam is located one side that horizontal beam one was kept away from to horizontal beam two, driving driven assembly supporting beam is last to be equipped with a set of pivot supporting seat, driven spindle sets up on a set of pivot supporting seat to driven spindle's both ends stretch into supporting beam one and a supporting beam two in, and driven spindle is located a supporting beam one and a supporting beam two's both ends and is equipped with driven road wheel.

Furthermore, according to the stable-structure double-beam traveling crane, the first supporting beam and the second supporting beam are provided with first rectangular through holes, the lower end parts of the driving traveling wheel and the driven traveling wheel extend out of the first rectangular through holes, and the lower end parts of the driving traveling wheel and the driven traveling wheel are arranged on the traveling track. The first rectangle through-hole that sets up for the lower terminal surface and the driving rail contact of driving wheel and driven driving wheel, thereby can roll on the driving rail.

Further, foretell stable in structure's twin beams driving, be equipped with first annular groove on the outer wall of initiative driving wheel and driven driving wheel, be equipped with the top rail head on the orbital up end of driving, the top rail head is arranged in first annular groove. The structure of the first annular groove and the upper rail head avoids the driving wheels and the driven wheels from being separated from the running track.

Furthermore, foretell stable in structure's two roof beams driving, the spacing subassembly of driving direction includes right angle backup pad, first pinch roller and second pinch roller, the vertical face is stabilized with the terminal surface fixed connection who props up a supporting beam one and prop up a supporting beam two to right angle backup pad, first pinch roller and second pinch roller symmetry set up in right angle backup pad to first pinch roller and second pinch roller contact with the orbital lateral wall of driving. The first pinch roller and the second pinch roller are symmetrically pressed on two sides of the travelling crane track, so that the travelling crane stability is improved.

Further, foretell stable in structure's two roof beam driving, be equipped with the horizontal support board in the right angle backup pad, the horizontal plate and the horizontal support board parallel arrangement of right angle backup pad, be equipped with tensile force adjusting part in right angle backup pad and the horizontal support board, tensile force adjusting part passes through the pivot seat with the pivot of first pinch roller and second pinch roller and is connected.

Further, foretell stable in structure's twin-beam driving, tensile force adjusting part includes a set of locking bolt, double-screw bolt, spring and double-screw bolt supporting seat, the fixed setting of double-screw bolt supporting seat is on the horizontal plate and the horizontal support board of right angle backup pad, the one end of double-screw bolt is connected with the pivot of first pinch roller and second pinch roller to the double-screw bolt supporting seat can be passed to the other end of double-screw bolt, the spring housing is established on the double-screw bolt, and the spring is located between the pivot of double-screw bolt supporting seat and first pinch roller and second pinch roller, a set of locking bolt and double-screw bolt threaded connection to the both sides at the double-screw bolt supporting seat are established with.

Further, foretell stable in structure's twin-beam driving, be equipped with first through-hole on the double-screw bolt supporting seat, the double-screw bolt passes first through-hole. The first through hole is arranged, so that the position of the stud can be adjusted, and the tension of the spring is adjusted.

Further, foretell stable in structure's two roof beams driving, be equipped with the pivot on first pinch roller and the second pinch roller, the pivot sets up in the horizontal plate and the horizontal support board of right angle backup pad, be equipped with the bearing in the pivot, first pinch roller and second pinch roller pass through the bearing setting in the pivot, be equipped with the axle sleeve in the pivot, the one end of double-screw bolt and the outer wall connection of axle sleeve.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: the stable structure double-beam driving of the utility model, the arranged double-beam driving structure can be provided with an electric hoist on two horizontal beams, and respectively and independently work, thereby improving the adaptability, the arranged driving component drives the driving road wheel to rotate through the motor, thereby pushing the driving driven wheel to rotate, so that the driving wheels and the driving driven wheels at four corner positions of the rectangle can keep the driving stably to move, the arranged first pinch roller and the second pinch roller are pressed and attached on the side wall of the driving track, thereby avoiding the driving deviation, improving the stability of the driving movement, the first pinch roller and the second pinch roller are provided with the pressing components of high-strength springs, the distance between the first pinch roller and the second pinch roller can be adjusted according to the driving track, and the structure is suitable for the use of different driving tracks, the double-beam traveling crane can move stably and work stably and reliably.

Drawings

Fig. 1 is a schematic structural view of the stable-structure double-beam traveling crane of the present invention;

fig. 2 is a top view of the double-beam traveling crane of the present invention;

FIG. 3 is a front view of the double-beam traveling crane of the present invention;

fig. 4 is a schematic view of a partial structure of the double-beam traveling crane of the present invention;

fig. 5 is a front view of the tension adjusting assembly of the present invention;

fig. 6 is a top view of the tension adjusting assembly of the present invention.

In the figure: the device comprises a cement upright column 1, a vehicle beam 2, a base plate 3, a vehicle track 4, a double-beam vehicle 5, a first horizontal beam 501, a second horizontal beam 502, a first support beam 503, a second support beam 504, a vehicle driving component 505, a vehicle driven component 506, a vehicle guiding and limiting component 507, a driving motor 508, a driving rotating shaft 509, a rotating shaft support seat 510, a driving vehicle wheel 511, a vehicle driving component support beam 512, a first rectangular through hole 513, a first annular groove 514, a driven rotating shaft 515, a driven vehicle wheel 516, a vehicle driven component support beam 517, a right-angle support plate 518, a first pinch roller 519, a second pinch roller 520, a horizontal support plate 521, a tension adjusting component 522, a locking bolt 523, a stud 524, a spring 525, a stud support seat 526, a first through hole 527, a rotating shaft 528, a bearing 529 and.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

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

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

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example one

The double-beam traveling crane with the stable structure shown in fig. 1-4 comprises a cement upright post 1, a vehicle beam 2, a base plate 3, a traveling rail 4 and a double-beam traveling crane 5, wherein the vehicle beam 2 is arranged on the upper end surface of the cement upright post 1, the base plate 3 is arranged on the upper end surface of the vehicle beam 2, the traveling rail 4 is fixedly arranged on the base plate 3, the double-beam traveling crane 5 is erected on the traveling rail 4, the double-beam traveling crane 5 can reciprocate along the traveling rail 4, and the cross section of the traveling rail 4 is shaped like a Chinese character 'shi'; the double-beam traveling crane 5 comprises a first horizontal beam 501, a second horizontal beam 502, a first supporting beam 503, a second supporting beam 504, a driving assembly 505, a driving driven assembly 506 and a group of driving guide limiting assemblies 507, wherein the first horizontal beam 501 and the second horizontal beam 502 are arranged in parallel, two ends of the first horizontal beam 501 and the second horizontal beam 502 are fixedly arranged on the first supporting beam 503 and the second supporting beam 504 through bolts, the cross section formed by the first horizontal beam 501, the second horizontal beam 502, the first supporting beam 503 and the second supporting beam 504 is II-shaped, the driving assembly 505 and the driving driven assembly 506 are arranged on the first supporting beam 503 and the second supporting beam 504, and two ends of the first supporting beam 503 and two ends of the second supporting beam 504 are provided with driving guide limiting assemblies 507.

In addition, in the above structure, the driving active driving assembly 505 comprises an active driving motor 508, an active spindle 509, a set of spindle supports 510, active road wheels 511 and driving active assembly supporting beams 512, the two ends of the driving assembly support beam 512 are fixedly arranged on the first support beam 503 and the second support beam 504, and the driving active assembly supporting beam 512 is located at one side of the first horizontal beam 501 far away from the second horizontal beam 502, the active driving motor 508 is arranged on the driving active assembly supporting beam 512, and the active drive motor 508 is connected to an active spindle 509 by a spur bevel gear transmission, the active spindle 509 is disposed on a set of spindle supports 510, the set of spindle supports 510 is fixedly disposed on a driving assembly support beam 512 of the traveling crane, the two ends of the active spindle 509 extend into the first supporting beam 503 and the second supporting beam 504, and the driving rotating shaft 509 is provided with driving wheels 511 at two ends of the first supporting beam 503 and the second supporting beam 504.

Thirdly, driving driven assembly 506 includes driven rotating shaft 515, a set of rotating shaft supporting seat 510, driven road wheel 516 and driving driven assembly supporting beam 517, driving driven assembly supporting beam 517's both ends are fixed to be set up on supporting beam one 503 and supporting beam two 504, and driving driven assembly supporting beam 517 is located two 502 sides of keeping away from horizontal beam one 501 of horizontal beam, be equipped with a set of rotating shaft supporting seat 510 on driving driven assembly supporting beam 517, driven rotating shaft 515 sets up on a set of rotating shaft supporting seat 510, and the both ends of driven rotating shaft 515 stretch into supporting beam one 503 and supporting beam two 504 in, and driven rotating shaft 515 is located the both ends of supporting beam one 503 and supporting beam two 504 and is equipped with driven road wheel 516.

In order to enable the driving road wheel 511 and the driven road wheel 516 to roll on the running rail 4, the first support beam 503 and the second support beam 504 are provided with a first rectangular through hole 513, the lower end portions of the driving road wheel 511 and the driven road wheel 516 extend out of the first rectangular through hole 513, and the lower end portions of the driving road wheel 511 and the driven road wheel 516 are placed on the running rail 4. And, the outer walls of the driving road wheel 511 and the driven road wheel 516 are provided with a first annular groove 514, the upper end surface of the running rail 4 is provided with an upper rail head 41, and the upper rail head 41 is arranged in the first annular groove 514.

In addition, the driving guide limiting assembly 507 comprises a right-angle support plate 518, a first pressing wheel 519 and a second pressing wheel 520, the right-angle support plate 518 is fixedly connected with the end faces of the first support beam 503 and the second support beam 504 in a stable vertical plane, the first pressing wheel 519 and the second pressing wheel 520 are symmetrically arranged on the right-angle support plate 518, and the first pressing wheel 519 and the second pressing wheel 520 are in contact with the side wall of the driving track 4.

Example two

As shown in fig. 5 and 6, a horizontal support plate 521 is arranged on the right-angle support plate 518, the horizontal plate of the right-angle support plate 518 and the horizontal support plate 521 are arranged in parallel, a tension adjusting assembly 522 is arranged on the right-angle support plate 518 and the horizontal support plate 521, and the tension adjusting assembly 522 is connected with the rotating shafts of the first pinch roller 519 and the second pinch roller 520 through a rotating shaft seat.

The tensioning force adjusting assembly 522 comprises a group of locking bolts 523, a stud 524, a spring 525 and a stud support seat 526, the stud support seat 526 is fixedly arranged on a horizontal plate and a horizontal support plate 521 of the right-angle support plate 518, one end of the stud 524 is connected with rotating shafts of the first pinch roller 519 and the second pinch roller 520, the other end of the stud 524 can penetrate through the stud support seat 526, the spring 525 is sleeved on the stud 524, the spring 525 is located between the stud support seat 526 and the rotating shafts of the first pinch roller 519 and the second pinch roller 520, the group of locking bolts 523 and the stud 524 are in threaded connection, and the group of locking bolts 523 and the spring 525 are respectively arranged on two sides of the stud support seat 526. The stud support base 526 is provided with a first through hole 527, and the stud 524 penetrates through the first through hole 527.

In addition, a rotating shaft 528 is arranged on the first pressing wheel 519 and the second pressing wheel 520, the rotating shaft 528 is arranged on a horizontal plate and a horizontal support plate 521 of the right-angle support plate 518, a bearing 529 is arranged on the rotating shaft 528, the first pressing wheel 519 and the second pressing wheel 520 are arranged on the rotating shaft 528 through the bearing 529, a shaft sleeve 530 is arranged on the rotating shaft 528, and one end of the stud 524 is connected with the outer wall of the shaft sleeve 530.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a stable in structure's two roof beam driving, its characterized in that: the concrete column is characterized by comprising a concrete column (1), a vehicle beam (2), a base plate (3), a travelling rail (4) and a double-beam travelling crane (5), wherein the vehicle beam (2) is arranged on the upper end surface of the concrete column (1), the base plate (3) is arranged on the upper end surface of the vehicle beam (2), the travelling rail (4) is fixedly arranged on the base plate (3), the double-beam travelling crane (5) is erected on the travelling rail (4), the double-beam travelling crane (5) can reciprocate along the travelling rail (4), and the section of the travelling rail (4) is shaped like a Chinese character 'shi'; wherein the double-beam crane (5) comprises a first horizontal beam (501), a second horizontal beam (502), a first support beam (503), a second support beam (504), a driving assembly (505), a driving driven assembly (506) and a group of driving guide limiting assemblies (507), the first horizontal beam (501) and the second horizontal beam (502) are arranged in parallel, and both ends of the first horizontal beam (501) and the second horizontal beam (502) are fixedly arranged on the first support beam (503) and the second support beam (504) through bolts, the cross section formed by the horizontal beam I (501), the horizontal beam II (502), the support beam I (503) and the support beam II (504) is II-shaped, the driving component (505) and the driving driven component (506) are arranged on the first supporting beam (503) and the second supporting beam (504), and traveling crane guiding and limiting assemblies (507) are arranged at the two ends of the first supporting beam (503) and the two ends of the second supporting beam (504).

2. The structurally stable twin beam row cart of claim 1, wherein: the driving assembly (505) comprises a driving motor (508), a driving rotating shaft (509), a group of rotating shaft supporting seats (510), a driving travelling wheel (511) and a driving assembly supporting beam (512), wherein two ends of the driving assembly supporting beam (512) are fixedly arranged on a supporting beam I (503) and a supporting beam II (504), the driving assembly supporting beam (512) is positioned on one side of a horizontal cross beam I (501) far away from the horizontal cross beam II (502), the driving motor (508) is arranged on the driving assembly supporting beam (512), the driving motor (508) is connected with the driving rotating shaft (509) through straight bevel gear transmission, the driving rotating shaft (509) is arranged on the group of rotating shaft supporting seats (510), the group of rotating shaft supporting seats (510) is fixedly arranged on the driving assembly supporting beam (512), two ends of the driving rotating shaft (509) extend into the first supporting beam (503) and the second supporting beam (504), and driving wheels (511) are arranged at two ends of the driving rotating shaft (509), which are positioned at the first supporting beam (503) and the second supporting beam (504).

3. The structurally stable twin beam row cart of claim 2, wherein: the driving driven assembly (506) comprises a driven rotating shaft (515), a set of rotating shaft supporting seats (510), driven wheels (516) and a driving driven assembly supporting beam (517), two ends of the driving driven assembly supporting beam (517) are fixedly arranged on the supporting beam I (503) and the supporting beam II (504), the driving driven assembly supporting beam (517) is located on one side, away from the horizontal beam I (501), of the horizontal beam II (502), a set of rotating shaft supporting seats (510) are arranged on the driving driven assembly supporting beam (517), the driven rotating shaft (515) is arranged on the set of rotating shaft supporting seats (510), two ends of the driven rotating shaft (515) extend into the supporting beam I (503) and the supporting beam II (504), and two ends, located on the supporting beam I (503) and the supporting beam II (504), of the driven rotating shaft (515) are provided with the driven wheels (516).

4. A structurally stable twin beam row cart according to claim 3, wherein: first rectangular through holes (513) are formed in the first supporting beam (503) and the second supporting beam (504), the lower ends of the driving travelling wheel (511) and the driven travelling wheel (516) extend out of the first rectangular through holes (513), and the lower ends of the driving travelling wheel (511) and the driven travelling wheel (516) are arranged on the travelling rail (4).

5. A structurally stable twin beam row cart according to claim 3, wherein: be equipped with first annular groove (514) on the outer wall of initiative driving wheel (511) and driven driving wheel (516), be equipped with on the up end of driving rail (4) railhead (41), first annular groove (514) is arranged in to last railhead (41).

6. The structurally stable twin beam row cart of claim 1, wherein: the driving guide limiting assembly (507) comprises a right-angle supporting plate (518), a first pressing wheel (519) and a second pressing wheel (520), the vertical stable surface of the right-angle supporting plate (518) is fixedly connected with the end surfaces of a first supporting beam (503) and a second supporting beam (504), the first pressing wheel (519) and the second pressing wheel (520) are symmetrically arranged on the right-angle supporting plate (518), and the first pressing wheel (519) and the second pressing wheel (520) are in contact with the side wall of the driving track (4).

7. The structurally stable dual beam row cart of claim 6, wherein: the novel hydraulic press is characterized in that a horizontal support plate (521) is arranged on the right-angle support plate (518), the horizontal plate and the horizontal support plate (521) of the right-angle support plate (518) are arranged in parallel, a tension adjusting assembly (522) is arranged on the right-angle support plate (518) and the horizontal support plate (521), and the tension adjusting assembly (522) is connected with rotating shafts of the first pinch roller (519) and the second pinch roller (520) through rotating shaft seats.

8. The structurally stable dual beam row cart of claim 7, wherein: the tensioning force adjusting assembly (522) comprises a group of locking bolts (523), a stud (524), a spring (525) and a stud support seat (526), the stud support seat (526) is fixedly arranged on a horizontal plate and a horizontal support plate (521) of a right-angle support plate (518), one end of the stud (524) is connected with rotating shafts of a first pinch roller (519) and a second pinch roller (520), the other end of the stud (524) can penetrate through the stud support seat (526), the spring (525) is sleeved on the stud (524), the spring (525) is located between the rotating shafts of the stud support seat (526) and the first pinch roller (519) and the second pinch roller (520), the group of locking bolts (523) and the stud (524) are in threaded connection, and the group of locking bolts (523) and the spring (525) are respectively arranged on two sides of the stud support seat (526).

9. The structurally stable dual beam row cart of claim 8, wherein: be equipped with first through-hole (527) on stud supporting seat (526), stud (524) pass first through-hole (527).

10. The structurally stable dual beam row cart of claim 8, wherein: be equipped with pivot (528) on first pinch roller (519) and second pinch roller (520), pivot (528) set up on the horizontal plate and the horizontal support plate (521) of right angle backup pad (518), be equipped with bearing (529) on pivot (528), first pinch roller (519) and second pinch roller (520) pass through bearing (529) and set up on pivot (528), be equipped with axle sleeve (530) on pivot (528), the one end of double-screw bolt (524) and the outer wall connection of axle sleeve (530).