CN211391222U

CN211391222U - Chassis structure of small crane

Info

Publication number: CN211391222U
Application number: CN201922332168.3U
Authority: CN
Inventors: 王建中
Original assignee: Huaian Lida Construction Machinery Co ltd
Current assignee: Huaian Lida Construction Machinery Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-01
Anticipated expiration: 2029-12-23

Abstract

The utility model relates to a small-size hoist technical field just discloses a small-size hoist's chassis structure, including the chassis body, the top fixed mounting of chassis body has the revolving stage, the top of revolving stage is rotated and is connected with the jib loading boom, the equal fixedly connected with connecting rod in both sides at the front and the back of chassis body, one side fixed mounting that the chassis body was kept away from to the connecting rod bottom has the second hydraulic telescoping rod. This small crane's chassis structure, drive the threaded rod rebound through the nut, thereby fasten first hydraulic telescoping rod, learn through lever principle and mechanical analysis, share the back through first hydraulic telescoping rod and third hydraulic telescoping rod to the power that chassis body received, it is more firm when using, avoid it to take place the skew in the use, cause great loss, thereby convenient to use has been reached, conveniently adjust its stress point, make its purpose more firm when using.

Description

Chassis structure of small crane

Technical Field

The utility model relates to a small crane technical field specifically is a small crane's chassis structure.

Background

The small crane is a transport vehicle combining a small crane vehicle and a chassis, and consists of a crane boom, a turntable, a frame, support legs and the like, mechanical actions of the small crane are realized through actions of mechanisms such as amplitude variation, stretching, rotation, hoisting and the like, hoisting operation is realized through combination of different actions, the small crane is a short form of the small crane, is a special vehicle produced by additionally arranging a special small crane (generally the hoisting weight is less than 12 tons) on a chassis of a small automobile and an agricultural vehicle, and is widely applied to the fields of construction sites, industrial and mining enterprises, stations, docks, electric power, postal service, urban construction, gardens, paving bridges and the like.

In the prior art, the chassis for the small and medium-sized crane is generally provided with two hydraulic telescopic rods on two sides respectively for supporting the chassis, the structure is not stable enough when in use, and is easy to incline when lifting a heavy object to cause the damage of the chassis, so that the chassis structure for the small and medium-sized crane is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a small-size crane's chassis structure possesses convenient to use, conveniently adjusts its stress point, makes its advantage such as more firm when using, has solved chassis that prior art medium and small-size crane used and has generally only respectively installed two hydraulic telescoping rod in its both sides, is used for supporting it, and this kind of structure is firm inadequately when using, and the easy emergence slope when lifting by crane heavier object causes the problem of its damage.

(II) technical scheme

For realizing above-mentioned convenient to use, conveniently adjust its stress point, make its more firm purpose when using, the utility model provides a following technical scheme: a chassis structure of a small crane comprises a chassis body, wherein the top of the chassis body is fixedly provided with a rotary table, the top of the turntable is rotatably connected with a cargo boom, the two sides of the front and back of the chassis body are fixedly connected with connecting rods, a second hydraulic telescopic rod is fixedly arranged on one side of the bottom of the connecting rod, which is far away from the chassis body, a third hydraulic telescopic rod is fixedly arranged on the right side of the bottom of the chassis body, the left sides of the top and the bottom of the chassis body are both provided with grooves, a moving groove is communicated between the two grooves, a threaded rod is connected inside the moving groove in a sliding way, a reinforcing plate is fixedly arranged at the bottom end of the threaded rod and positioned inside the bottom groove, the bottom fixedly connected with first hydraulic telescoping rod of reinforcing plate, the threaded rod surface is located the inside threaded connection of top recess and is had the nut.

Preferably, the bottom of the nut and the outer side of the threaded rod are fixedly provided with a first gasket, and the top of the reinforcing plate and the outer side of the threaded rod are fixedly provided with a second gasket.

Preferably, the front surface and the back surface of the first hydraulic telescopic rod are fixedly connected with L-shaped fixed rods, the bottom of the first hydraulic telescopic rod is provided with a limit groove corresponding to the L-shaped fixed rods, and one end, far away from the first hydraulic telescopic rod, of the L-shaped fixed rods is slidably connected inside the limit groove.

Preferably, the surface of the nut is fixedly provided with force-borrowing rods distributed equidistantly along the circumferential direction, and the bottom ends of the first hydraulic telescopic rod, the second hydraulic telescopic rod and the third hydraulic telescopic rod are fixedly provided with anti-skid pads.

Preferably, the top end of the threaded rod is fixedly provided with a limiting block, and the limiting block is positioned above the nut.

(III) advantageous effects

Compared with the prior art, the utility model provides a small crane's chassis structure possesses following beneficial effect:

1. this small crane's chassis structure, drive the threaded rod rebound through the nut, thereby fasten first hydraulic telescoping rod, learn through lever principle and mechanical analysis, share the back through first hydraulic telescoping rod and third hydraulic telescoping rod to the power that chassis body received, it is more firm when using, avoid it to take place the skew in the use, cause great loss, thereby convenient to use has been reached, conveniently adjust its stress point, make its purpose more firm when using.

2. This small crane's chassis structure, make first hydraulic telescoping rod's installation more firm through first gasket and second gasket, carry on spacingly through spacing groove and L type fixed rod to first hydraulic telescoping rod, avoid it to control the in-process that removes and take place the skew, it is more firm to make its installation simultaneously, it is more convenient to make the rotation of nut through borrowing the power pole, then make the chassis body more firm at the course of the work through the slipmat, carry on spacingly to the nut through the stopper, avoid it to drop from the threaded rod.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front sectional view of the overall structure of the present invention;

fig. 3 is a bottom view of the chassis body and the first hydraulic telescopic rod of the present invention;

FIG. 4 is a side sectional view of the connection between the chassis body and the first hydraulic telescopic rod of the present invention;

fig. 5 is an enlarged view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a chassis body; 2. a turntable; 3. a cargo boom; 4. a first hydraulic telescopic rod; 5. a connecting rod; 6. a second hydraulic telescopic rod; 7. a non-slip mat; 8. a third hydraulic telescopic rod; 9. a groove; 10. a moving groove; 11. a limiting groove; 12. an L-shaped fixing rod; 13. a force-borrowing rod; 14. a nut; 15. a limiting block; 16. a threaded rod; 17. a first gasket; 18. a reinforcing plate; 19. a second gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a chassis structure of a small crane comprises a chassis body 1, a rotary table 2 is fixedly installed on the top of the chassis body 1, a crane boom 3 is rotatably connected on the top of the rotary table 2, connecting rods 5 are fixedly connected on both sides of the front and back of the chassis body 1, a second hydraulic telescopic rod 6 is fixedly installed on one side of the bottom of the connecting rod 5 away from the chassis body 1, a third hydraulic telescopic rod 8 is fixedly installed on the right side of the bottom of the chassis body 1, grooves 9 are respectively formed on the left sides of the top and bottom of the chassis body 1, a moving groove 10 is communicated between the two grooves 9, a threaded rod 16 is slidably connected inside the moving groove 10, a reinforcing plate 18 is fixedly installed at the bottom end of the threaded rod 16 and located inside the bottom groove 9, a first hydraulic telescopic rod 4 is fixedly connected at the bottom of the reinforcing plate 18, a nut 14 is connected on, when using, according to the position of the first hydraulic telescoping rod 4 of the weight manual regulation of article hung, then rotate nut 14, drive threaded rod 16 rebound through nut 14, thereby fasten first hydraulic telescoping rod 4, learn through lever principle and mechanics analysis, share the back through the power that first hydraulic telescoping rod 4 and third hydraulic telescoping rod 8 received chassis body 1, it is more firm when using, avoid it to take place the skew in the use, cause great loss, thereby convenient to use has been reached, conveniently adjust its stress point, make its more firm purpose when using.

In this embodiment, specifically, a first gasket 17 is fixedly mounted at the bottom of the nut 14 and outside the threaded rod 16, a second gasket 19 is fixedly mounted at the top of the reinforcing plate 18 and outside the threaded rod 16, and the first hydraulic telescopic rod 4 is more stably mounted through the first gasket 17 and the second gasket 19.

In this embodiment, it is concrete, the equal fixedly connected with L type dead lever 12 in the front and the back of first hydraulic telescoping rod 4, the spacing groove 11 that corresponds with L type dead lever 12 is seted up to the interior roof of bottom recess 9, the one end sliding connection that first hydraulic telescoping rod 4 was kept away from to L type dead lever 12 is in the inside of spacing groove 11, it is spacing to first hydraulic telescoping rod 4 through spacing groove 11 and L type dead lever 12, avoid its in-process emergence skew of controlling about, make its installation more firm simultaneously.

In this embodiment, specifically, the surface of the nut 14 is fixedly provided with the force-borrowing rods 13 which are distributed equidistantly along the circumferential direction, the bottom ends of the first hydraulic telescopic rod 4, the second hydraulic telescopic rod 6 and the third hydraulic telescopic rod 8 are fixedly provided with the anti-slip pads 7, the rotation of the nut 14 is more convenient through the force-borrowing rods 13, and then the chassis body 1 is more stable in the working process through the anti-slip pads 7.

In this embodiment, specifically, the top fixed mounting of threaded rod 16 has stopper 15, and stopper 15 is located the top of nut 14, carries on spacingly through stopper 15 to nut 14, avoids it to drop from threaded rod 16.

The working principle is as follows: when using, according to the position of the first hydraulic telescoping rod 4 of the weight manual regulation of article hung, then rotate nut 14, drive threaded rod 16 rebound through nut 14, thereby fasten first hydraulic telescoping rod 4, learn through lever principle and mechanics analysis, share the back through the power that first hydraulic telescoping rod 4 and third hydraulic telescoping rod 8 received chassis body 1, it is more firm when using, avoid it to take place the skew in the use, cause great loss, thereby convenient to use has been reached, conveniently adjust its stress point, make its more firm purpose when using.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a small crane's chassis structure, includes chassis body (1), its characterized in that: the hydraulic telescopic chassis is characterized in that a rotary table (2) is fixedly mounted at the top of the chassis body (1), a crane boom (3) is rotatably connected at the top of the rotary table (2), connecting rods (5) are fixedly connected to the front side and the back side of the chassis body (1), a second hydraulic telescopic rod (6) is fixedly mounted at one side, far away from the chassis body (1), of the bottom of each connecting rod (5), a third hydraulic telescopic rod (8) is fixedly mounted at the right side of the bottom of the chassis body (1), grooves (9) are formed in the top and the left side of the bottom of the chassis body (1), a moving groove (10) is communicated between the two grooves (9), a threaded rod (16) is slidably connected inside the moving groove (10), a reinforcing plate (18) is fixedly mounted at the bottom end of the threaded rod (16) and inside the bottom groove (9), a first hydraulic telescopic rod (4) is fixedly connected at the bottom, and a nut (14) is connected to the surface of the threaded rod (16) and is positioned in the inner thread of the top groove (9).

2. The undercarriage structure of a small-sized crane according to claim 1, wherein: and a first gasket (17) is fixedly arranged at the bottom of the nut (14) and positioned on the outer side of the threaded rod (16), and a second gasket (19) is fixedly arranged at the top of the reinforcing plate (18) and positioned on the outer side of the threaded rod (16).

3. The undercarriage structure of a small-sized crane according to claim 1, wherein: the front face and the back face of the first hydraulic telescopic rod (4) are fixedly connected with L-shaped fixing rods (12) and the bottom is formed in the inner top wall of the groove (9), limiting grooves (11) corresponding to the L-shaped fixing rods (12) are formed in the inner top wall of the groove (9), and one ends, far away from the first hydraulic telescopic rod (4), of the L-shaped fixing rods (12) are connected to the inner portions of the limiting grooves (11) in a sliding mode.

4. The undercarriage structure of a small-sized crane according to claim 1, wherein: the surface of the nut (14) is fixedly provided with force borrowing rods (13) which are distributed equidistantly along the circumferential direction, and the bottom ends of the first hydraulic telescopic rod (4), the second hydraulic telescopic rod (6) and the third hydraulic telescopic rod (8) are fixedly provided with anti-skid pads (7).

5. The undercarriage structure of a small-sized crane according to claim 1, wherein: the top fixed mounting of threaded rod (16) has stopper (15), stopper (15) are located the top of nut (14).