CN220009934U

CN220009934U - Tractor cab limiting device

Info

Publication number: CN220009934U
Application number: CN202321624529.1U
Authority: CN
Inventors: 李培彩; 李涛; 冯华; 冯会玲; 刘婷
Original assignee: Thomas Shandong Agricultural Equipment Co ltd
Current assignee: Thomas Shandong Agricultural Equipment Co ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-11-14
Anticipated expiration: 2033-06-26

Abstract

The utility model discloses a tractor cab limiting device which comprises a supporting plate, wherein movable lug plates are arranged on the left side and the right side of the front face of the supporting plate, first fixing seats are arranged on the positions, close to the left side and the right side, of the back face of the supporting plate, and one end, far away from the supporting plate, of each first fixing seat is fixedly connected with a supporting frame through an adjustable bolt. After the connection is completed by using the fixing lug plate to connect with the bottom plate of the tail box through the fixing bolt, when the head of a vehicle tilts forward, the supporting plate can follow the forward tilting and drive the supporting frame to follow the forward tilting, the mounting seat can rotate relative to the second fixing seat and exert certain tensile force on the second fixing seat, the guide block can slide forward relative to the fixed guide rail, the movable rod moves relative to the fixed guide rail along with the movable rod, the buffer spring is stretched to buffer the forward tilting, the impact of the forward tilting on the head of the vehicle is reduced, the impact of the head tilting forward is obviously reduced, and the injury is reduced.

Description

Tractor cab limiting device

Technical Field

The utility model relates to the technical field of tractors, in particular to a limiting device for a cab of a tractor.

Background

With the continuous development of agricultural mechanization, more and more agricultural production needs to be assisted by using an agricultural tractor, the agricultural tractor is mechanized equipment for agricultural production, and is mainly used for farming, seeding, fertilizing, harvesting, transportation and other works, the conventional tractor mainly comprises a headstock and a cargo box, wherein the headstock can pull the cargo box to provide a main power source, the cargo box can load various agricultural products, most of main components of the agricultural tractor are concentrated at the headstock, a cab is also arranged at the headstock, and therefore, the visibility and the safety of the cab are directly related to the performance of the whole tractor.

The locomotive and the packing box of its front end of common agricultural tractor are detachable design, when in actual use, when the inside of packing box is loaded with a large amount of goods, when braking the tractor this moment, because the afterbody quality is heavier, leads to the focus to be close back when emergency braking to and lead to the head to distribute the phenomenon of leaning forward, and in case when too big in the cab forward angle that leads to when jolting or emergency braking because of the tractor, will show the sight and the security that influence the driver, lead to the driver to be injured easily, so how to carry out the spacing of certain degree to the forward angle of cab is crucial.

Disclosure of Invention

The utility model aims to provide a limiting device for a tractor cab, which is used for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tractor cab stop device, includes the backup pad, the positive left and right sides of backup pad all is equipped with movable otic placode, the backup pad back is close to all installs first fixing base in the position of left and right sides, bolt fixedly connected with support frame is kept away from to the one end of backup pad through adjustable bolt to first fixing base, the support frame is through the elasticity adjustment of adjustable bolt and the angle between the first fixing base, the one end fixedly connected with mount pad of first fixing base is kept away from to the support frame, the one end of support frame is kept away from through pivot swing joint to the mount pad has the second fixing base, the below of second fixing base is equipped with fixed rail, the bottom fixedly connected with guide block of second fixing base, the second fixing base passes through movable joint between guide block and the fixed rail, the displacement around the guide block relative fixed rail.

As a further preferable mode of the technical scheme, the front side and the rear side of the bottom end of the fixed guide rail are fixedly provided with fixed lug plates, the position, close to the left side and the right side, of the front side of the support plate is provided with a limiting groove, and the movable lug plates are movably clamped with the limiting groove through a limiting strip.

As a further preferable mode of the technical scheme, the front side of the supporting plate is symmetrically provided with fixing grooves which are completely penetrated at positions close to the left side and the right side, and the middle part of the movable ear plate is provided with fixing holes which are completely penetrated.

As a further preferable aspect of the present utility model, the fixing hole is located on the front surface of the fixing groove, and the diameter of the fixing hole is the same as the width of the fixing groove.

As a further preferable mode of the technical scheme, the rear end of the guide block is fixedly provided with a movable rod positioned in the fixed guide rail, the rear end of the movable rod penetrates through the rear end of the fixed guide rail and is movably sleeved with the fixed guide rail, the outer side face of the movable rod is movably sleeved with a buffer spring, and the left end and the right end of the buffer spring are connected with one end of the guide block and the rear end of the inner cavity of the fixed guide rail.

Through being connected the back with backup pad and locomotive to be connected between fixed guide and the boot bottom plate, the relative position of adjustable otic placode can be according to the size adjustment of locomotive this moment, when the relative spacing groove of slip adjustable otic placode makes its relative displacement adjustment to suitable position promptly, pass through fixed slot and fixed orifices through fixing bolt and make and be connected between it and the locomotive, and the accessible fixed otic placode uses to be connected between fixing bolt and the boot bottom plate, accomplish the connection back, when the hair is forward-tilted, the backup pad can follow forward and drive the support frame and follow forward-tilted this moment, the mount pad can rotate and apply certain pulling force to the second fixing base this moment, but the guide block forward slide relative fixed guide at this moment, the movable rod is along with this relative fixed guide displacement, and buffer spring is stretched and is buffered forward-tilted the impact of locomotive, impact when reducing forward-tilted is showing, reduce the injury.

As a further preferable mode of the technical scheme, the front end of the inner cavity of the fixed guide rail is movably clamped with a limiting block, the limiting block moves back and forth relative to the fixed guide rail, and a thread bush is fixedly arranged at the front end of the fixed guide rail.

As a further preferable mode of the technical scheme, the threaded rod is sleeved on the inner thread of the threaded sleeve, penetrates through the rear end of the threaded sleeve and is located in the fixed guide rail and rotates relative to the fixed guide rail, a movable shaft is movably mounted at the rear end of the threaded rod and is connected with the middle of the front face of the limiting block, and the threaded rod rotates relative to the limiting block.

Through can take place the contact with the stopper when the guide block continues the displacement forward, because the stopper can't take place the displacement under the effect of threaded rod, lead to the displacement stroke of guide block to be limited, the rake angle of locomotive is limited thereupon this moment, and when need adjusting the biggest rake angle of locomotive, the accessible rotatory threaded rod can drive the stopper and reciprocate under the spacing effect of stopper and fixed guide, can adjust the buffering stroke through adjusting the interval between stopper and the guide block this moment, accomplish the adaptability adjustment of biggest rake angle, spacing is carried out to biggest rake angle, satisfy the security requirement under the different operating modes, compromise sight and security.

The utility model provides a tractor cab limiting device, which has the following beneficial effects:

(1) According to the utility model, the supporting plate is connected with the back of the headstock, the fixed guide rail is connected with the bottom plate of the tailstock, at the moment, the relative position of the movable lug plate can be adjusted according to the size of the headstock, namely, when the movable lug plate is slid to enable the movable lug plate to be displaced to a proper position relative to the limiting groove, the movable lug plate penetrates through the fixing groove and the fixing hole to be connected with the headstock through the fixing bolt, the fixed lug plate can be connected with the bottom plate of the tailstock through the fixing bolt, after the connection is completed, when the headstock tilts forward, the supporting plate can follow the forward tilting and drive the supporting frame to follow the forward tilting, at the moment, the mounting seat can rotate relative to the second fixing seat and apply a certain tensile force to the second fixing seat, at the moment, the guide block can slide forward relative to the fixed guide rail, at the moment, the movable rod is displaced relative to the fixed guide rail, and the buffer spring is stretched to buffer the forward tilting, so that the impact of the headstock caused by forward tilting is reduced, and the impact of the headstock caused by forward tilting is remarkably reduced, and the damage is reduced.

(2) According to the utility model, when the guide block continues to move forwards, the guide block can be contacted with the limiting block, the limiting block cannot move under the action of the threaded rod, so that the displacement stroke of the guide block is limited, the forward inclination angle of the vehicle head is limited, when the maximum forward inclination angle of the vehicle head is required to be adjusted, the limiting block can be driven to move forwards and backwards under the limiting action of the limiting block and the fixed guide rail by rotating the threaded rod, at the moment, the buffer stroke can be adjusted by adjusting the distance between the limiting block and the guide block, the adaptive adjustment of the maximum forward inclination angle is completed, the maximum forward inclination angle is limited, the safety requirements under different working conditions are met, and the sight and the safety are considered.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of the support plate and the movable ear plate structure of the present utility model;

FIG. 3 is an exploded view of the mounting base and second mount and fixed rail structure of the present utility model;

fig. 4 is an exploded view of the thread bushing and threaded rod configuration of the present utility model.

In the figure: 1. a support plate; 2. a limit groove; 3. a movable ear plate; 4. a fixing hole; 5. a fixing groove; 6. a first fixing seat; 7. a support frame; 8. a mounting base; 9. the second fixing seat; 10. a fixed guide rail; 11. fixing the ear plate; 12. a guide block; 13. a limiting block; 14. a movable rod; 15. a buffer spring; 16. a thread sleeve; 17. a movable shaft; 18. a threaded rod.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

The utility model provides the technical scheme that: as shown in fig. 1 to 4, in this embodiment, a tractor cab limiting device includes a supporting plate 1, the positive left and right sides of supporting plate 1 all is equipped with movable otic placode 3, all install first fixing base 6 on the position that the back of supporting plate 1 is close to the left and right sides, the one end that the supporting plate 1 was kept away from to first fixing base 6 is through adjustable bolt fixedly connected with support frame 7, the angle between support frame 7 and the first fixing base 6 through the elasticity adjustment of adjustable bolt, the one end fixedly connected with mount pad 8 that the support frame 7 was kept away from to first fixing base 6, the one end that the mount pad 8 was kept away from support frame 7 is through pivot swing joint has second fixing base 9, the below of second fixing base 9 is equipped with fixed guide rail 10, the bottom fixedly connected with guide block 12 of second fixing base 9, the second fixing base 9 is through movable joint between guide block 12 and the fixed guide rail 10, guide block 12 relative displacement.

As shown in fig. 1, fig. 2 and fig. 3, the front side and the rear side of the bottom end of the fixed guide rail 10 are fixedly provided with fixed ear plates 11, the front side of the support plate 1 is close to the positions of the left side and the right side and is provided with a limit groove 2, the movable ear plates 3 are movably clamped with the limit groove 2 through limit bars, the front side of the support plate 1 is close to the positions of the left side and the right side and is symmetrically provided with a completely penetrating fixed groove 5, the middle part of the movable ear plates 3 is provided with a completely penetrating fixed hole 4, the fixed hole 4 is positioned on the front side of the fixed groove 5, the diameter of the fixed hole 4 is the same as the width of the fixed groove 5, the rear end of the guide block 12 is fixedly provided with a movable rod 14 positioned in the fixed guide rail 10, the rear end of the movable rod 14 penetrates through the rear end of the fixed guide rail 10 and is movably sleeved with the fixed guide rail 10, the outer side surface of the movable rod 14 is movably sleeved with a buffer spring 15, and the left end and the right end of the buffer spring 15 are connected with one end of the guide block 12 and the rear end of the inner cavity of the fixed guide rail 10.

Through being connected the back of backup pad 1 with the locomotive to be connected between fixed rail 10 and the boot bottom plate, can adjust the relative position of movable otic placode 3 according to the size of locomotive this moment, when the relative spacing groove 2 takes place displacement adjustment to suitable position promptly to slip movable otic placode 3, pass through fixed slot 5 and fixed orifices 4 through fixing bolt and make and be connected between it and the locomotive, and the accessible fixed otic placode 11 uses fixing bolt to be connected between the boot bottom plate, after accomplishing the connection, when the locomotive forward-leaned, backup pad 1 can follow forward and drive support frame 7 and follow forward-leaned this moment, mount pad 8 can rotate and apply certain pulling force to second fixing base 9 relative to fixed rail 10 this moment, but the guide block 12 forward slides relative to fixed rail 10 this moment movable rod 14 is along with the displacement of fixed rail 10, and buffer spring 15 is stretched and is buffered forward-leaned, reduce the impact of forward-leaned to the locomotive, reduce the impact when forward-leaned, reduce the injury notably.

As shown in fig. 3 and 4, the front end of the inner cavity of the fixed guide rail 10 is movably clamped with a limiting block 13, the limiting block 13 is displaced back and forth relative to the fixed guide rail 10, the front end of the fixed guide rail 10 is fixedly provided with a threaded sleeve 16, the internal thread of the threaded sleeve 16 is sleeved with a threaded rod 18, the threaded rod 18 penetrates through the rear end of the threaded sleeve 16 and is positioned in the fixed guide rail 10 and rotates relative to the fixed guide rail 10, the rear end of the threaded rod 18 is movably provided with a movable shaft 17, the movable shaft 17 is connected with the middle part of the front face of the limiting block 13, and the threaded rod 18 rotates relative to the limiting block 13.

Through can take place the contact with stopper 13 when guide block 12 continues the displacement forward, because stopper 13 can't take place the displacement under the effect of threaded rod 18, lead to the displacement stroke of guide block 12 to be limited, the rake angle of locomotive is limited thereupon this moment, and when need carrying out the adjustment to the biggest rake angle of locomotive, the accessible rotates threaded rod 18 can drive stopper 13 back-and-forth displacement under the spacing effect of stopper 13 and fixed rail 10, can adjust the buffering stroke through adjusting the interval between stopper 13 and the guide block 12 this moment, accomplish the adaptability adjustment of biggest rake angle, spacing is carried out to biggest rake angle, satisfy the security requirement under the different operating modes, compromise sight and security.

The utility model provides a tractor cab limiting device, which has the following specific working principle:

the support plate 1 can be connected with the back of the headstock before the in-service use to be connected between fixed guide rail 10 and the boot bottom plate, can adjust the relative position of movable otic placode 3 according to the size of headstock this moment, when sliding movable otic placode 3 makes its relative fixed guide rail 10 displacement adjustment to suitable position promptly, pass through fixed slot 5 and fixed orifices 4 through fixing bolt and make and be connected between it and the headstock, and can accomplish fixedly, and accessible fixed otic placode 11 uses and is connected between fixing bolt and the boot bottom plate, after the completion is connected, when the headstock forward tilts, support plate 1 can follow forward and drive support frame 7 and follow forward, at this moment mount pad 8 can rotate and apply certain pulling force to second fixing base 9 relatively fixed guide rail 10 at this moment, at this moment guide block 12 can slide forward relatively, at this moment movable rod 14 is along with the displacement of fixed guide rail 10, and buffer spring 15 is stretched and is buffered forward tilting, reduce the impact of forward to the headstock, can take place the contact with stopper 13 when guide block 12 continues forward displacement, and can't take place the displacement under the effect of threaded rod 13, can't take place the displacement under the influence of the effect of 18, can be adjusted forward tilt angle to the limit 13 at this moment with the limit of the limiting block, can be adjusted forward tilt angle when the forward tilt of the limit 13 is very big, can be adjusted forward through the limit of the inclination of the guide block 13 at this moment, can adjust forward tilt angle is adjusted very big when the limit of the inclination of the limit of the angle is adjusted forward-limited forward angle is required by the limit of the angle 13, at the forward adjustment is adjusted.

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

1. Tractor driver's cabin stop device, including backup pad (1), its characterized in that: the utility model discloses a support plate, including backup pad (1), fixed guide (10) are fixed on the back of backup pad (1), all be equipped with movable otic placode (3) in the positive left and right sides of backup pad (1), first fixing base (6) are kept away from on the position that the left and right sides is close to, bolt fixedly connected with support frame (7) are passed through to the one end of backup pad (1), the support frame (7) are kept away from the angle between elasticity adjustment and first fixing base (6) of bolt, the one end fixedly connected with mount pad (8) of first fixing base (6) are kept away from to support frame (7), the one end that support frame (7) were kept away from to mount pad (8) is through pivot swing joint second fixing base (9), the below of second fixing base (9) is equipped with fixed guide (10), the bottom fixedly connected with guide block (12) of second fixing base (9) is through movable joint between guide block (12) and fixed guide (10), displacement around guide block (12) relative fixed guide (10).

2. A tractor cab restraint as defined by claim 1 wherein: fixed lug plates (11) are fixedly installed on the front side and the rear side of the bottom end of the fixed guide rail (10), limiting grooves (2) are formed in positions, close to the left side and the right side, of the front face of the supporting plate (1), and the movable lug plates (3) are movably clamped with the limiting grooves (2) through limiting strips.

3. A tractor cab restraint device as defined by claim 2 wherein: the fixing grooves (5) which are completely penetrated are symmetrically formed in the positions, close to the left side and the right side, of the front face of the supporting plate (1), and the fixing holes (4) which are completely penetrated are formed in the middle of the movable lug plate (3).

4. A tractor cab restraint according to claim 3, wherein: the fixing holes (4) are positioned on the front face of the fixing groove (5), and the diameters of the fixing holes (4) are the same as the width of the fixing groove (5).

5. A tractor cab restraint as defined by claim 1 wherein: the rear end fixed mounting of guide block (12) has movable rod (14) that are located fixed guide (10) inside, the rear end of movable rod (14) runs through the rear end of fixed guide (10) and with fixed guide (10) between the activity cup joint, buffer spring (15) have been cup jointed in the lateral surface activity of movable rod (14), the both ends are connected with the rear end of one end and fixed guide (10) inner chamber of guide block (12) about buffer spring (15).

6. A tractor cab restraint as defined by claim 1 wherein: the front end of the inner cavity of the fixed guide rail (10) is movably clamped with a limiting block (13), the limiting block (13) moves back and forth relative to the fixed guide rail (10), and a thread bush (16) is fixedly arranged at the front end of the fixed guide rail (10).

7. The tractor cab restraint device of claim 6, wherein: the inside screw thread of thread bush (16) has cup jointed threaded rod (18), threaded rod (18) run through the rear end of thread bush (16) and are located the inside of fixed guide (10) and rotate relative to fixed guide (10), the rear end movable mounting of threaded rod (18) has loose axle (17), loose axle (17) are connected with stopper (13) positive middle part, threaded rod (18) rotate relative stopper (13).