CN218063256U

CN218063256U - Gearbox arrangement for a semitrailer support device

Info

Publication number: CN218063256U
Application number: CN202222497669.9U
Authority: CN
Inventors: 谈长稳
Original assignee: Jiangsu Lanxun Environmental Protection Co ltd
Current assignee: Jiangsu Lanxun Environmental Protection Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2022-12-16
Anticipated expiration: 2032-09-21

Abstract

The utility model discloses a gear box structure for a semitrailer supporting device, which relates to the technical field of semitrailers and comprises a rear-end box body and a front-end box body arranged on the rear-end box body, wherein a middle gear, a big gear and a small gear are rotationally arranged in the rear-end box body, the middle gear is positioned above the big gear, and the small gear is positioned below the big gear in an inclined manner; a box body of the front-end box body is provided with a transmission assembly for driving by matching with a large gear and a small gear; the transmission assembly is matched with the inner gear of the box body, so that the supporting device can be conveniently subjected to acceleration regulation and deceleration regulation respectively, the two states can be conveniently combined for use, and the deceleration transmission regulation and the acceleration transmission regulation can be conveniently selected according to the change of transmission resistance; the labor-saving effect and the convenience of operation of the supporting device during adjustment are improved; the problem of supporting device's gear box structure when the operation, operating personnel is comparatively hard to the supporting device regulation is solved.

Description

Gearbox arrangement for a semitrailer support device

Technical Field

The utility model relates to a technical field of semitrailer especially relates to a gear box structure for semitrailer supporting device.

Background

The semitrailer is a transportation tool which is widely applied in the modern transportation industry, the front end of the semitrailer can be disconnected with a tractor when the semitrailer is not driven, and a semitrailer supporting device is often arranged at the bottom of the semitrailer close to the front end in order to support the front end of the semitrailer after disconnection;

the utility model with application number CN201621447732.6 discloses a lightweight semitrailer supporting device, which comprises a supporting leg, a lifting mechanism and a power mechanism; the power mechanism is arranged on the supporting leg and is in power connection with the lifting mechanism; the continuous and stable lifting function is realized, and the defects that the trailer is easy to shake and has potential safety hazards in the lifting process are overcome;

however, the power mechanism in the use of the device is labor-consuming in adjusting the support, and an operation vehicle is needed to rotate the adjusting shaft in the supporting device; because the front end of the semitrailer body is heavy, when the supporting device is adjusted, an operator can rotate the adjusting shaft by using a large force, and then the supporting height of the supporting device is adjusted, so that the adjusting efficiency of the operator on the supporting device is poor; accordingly, there is a need for a gearbox configuration that optimizes the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gearbox structure for semitrailer supporting device in order to solve the shortcoming that has the practicality among the prior art not good.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the gear box structure for the semitrailer supporting device comprises a rear-end box body and a front-end box body arranged on the rear-end box body, wherein a middle gear, a large gear and a small gear are rotatably arranged in the rear-end box body, the middle gear is positioned above the large gear, and the small gear is positioned obliquely below the large gear; a box body of the front-end box body is provided with a transmission assembly for driving in a matching way with the large gear and the small gear;

the rear end box and the front end box are narrow at the top and wide at the bottom, a circle of sealing frame is arranged at the rear end of the front end box in a protruding mode, the sealing groove is formed in the front end of the rear end box in a matched mode and is provided with a rubber sealing gasket, and the sealing frame is inserted in the sealing groove in a sealing mode.

Preferably, the transmission assembly comprises a threaded cylinder fixedly connected in the front-end box body corresponding to the large gear and the small gear, a mounting plate in the threaded cylinder in threaded connection, and a transmission shaft rotatably arranged in the mounting plate and used for driving the large gear and the small gear.

Preferably, the transmission shaft is including rotating dwang, the rigid coupling of setting in the mounting panel at the first connecting axle of dwang inner and the second connecting axle of rigid coupling in the dwang outer end, first connecting axle and second connecting axle are the axis body of hex horn shape.

Preferably, the middle gear comprises a first rotating shaft which is rotatably arranged on the upper portion of the inner wall of the rear-end box body, one end of the first rotating shaft penetrates through the rear end face of the rear-end box body, and a hexagonal connecting groove is formed in one end face of the first rotating shaft.

Preferably, the gear wheel is including rotating the second pivot that sets up in rear end box inner wall middle part, the pinion is including rotating the third pivot that sets up in rear end box inner wall lower part, the drive groove of hexagonal shape is seted up to the first connecting axle of front end cooperation of second pivot and third pivot.

Preferably, the rear end box body includes that the rigid coupling is used for the fixed plate of fixed box in rear end box body both sides at the first concatenation frame at the opening edge and rigid coupling, the mounting hole has all been seted up to the preceding terminal surface upper portion and the lower part of fixed plate.

Preferably, the rear end opening of the front end box body is matched with the first splicing frame to be fixedly connected with the second splicing frame, the second splicing frame is connected with a plurality of splicing bolts in a threaded mode, and the frame body of the first splicing frame is matched with the splicing bolts to be provided with a plurality of splicing holes.

Compared with the prior art, the beneficial effects of the utility model are that: in the utility model, the gear in the gear box can realize two transmission states through the matching of the transmission component and the internal gear of the box body, the supporting device can be conveniently and respectively adjusted in an acceleration and deceleration way, and the two states can be conveniently combined for use, so that the labor-consuming situation of the supporting device during the adjustment and the support can be conveniently reduced; the speed reduction transmission adjustment and the speed increase transmission adjustment can be conveniently selected according to the change of the transmission resistance; the labor-saving effect and the convenience of operation of the supporting device during adjustment are improved conveniently; the problem of supporting device's gear box structure when the operation, operating personnel is comparatively hard to the supporting device regulation is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a schematic view of the installation structure provided by the present invention;

fig. 2 is a schematic view of a front view structure provided by the present invention;

fig. 3 is a schematic structural view of a rear-end box body according to the present invention;

fig. 4 is a schematic structural view of a front-end box body side according to the present invention;

fig. 5 is a schematic view of a partial cross-sectional structure of a first rotating shaft according to the present invention;

fig. 6 is a schematic view of the overall structure of the transmission shaft according to the present invention.

Sequence numbers in the figure: 1. a rear-end tank body; 2. a front-end box body; 3. a first splicing frame; 4. a second splicing frame; 5. splicing the bolts; 6. a fixing plate; 7. a first rotating shaft; 8. a middle gear; 9. a second rotating shaft; 10. a bull gear; 11. a third rotating shaft; 12. a pinion gear; 13. a threaded barrel; 14. mounting a plate; 15. rotating the rod; 16. a first connecting shaft; 17. a second connecting shaft; 18. a transmission groove.

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.

Example (b): referring to fig. 1-6, the gear box structure for a semitrailer supporting device in the present invention comprises a rear-end box body 1 and a front-end box body 2 installed on the rear-end box body 1, wherein a middle gear 8, a big gear 10 and a small gear 12 are rotatably installed in the rear-end box body 1, the middle gear 8 is located above the big gear 10, and the small gear 12 is located obliquely below the big gear 10; a transmission assembly for driving is arranged on the front-end box body 2 in a matched mode with the large gear 10 and the small gear 12, the rear-end box body 1 and the front-end box body 2 are both narrow in top and wide in bottom, manufacturing materials are saved conveniently through the rear-end box body 1 and the front-end box body 2 which are narrow in top and wide in bottom, a circle of sealing frame is arranged at the rear end of the front-end box body 2 in a protruding mode, the front end of the rear-end box body 1 is provided with a sealing groove in a matched mode with the sealing frame, a rubber sealing gasket is arranged in the sealing groove, and the sealing frame is inserted into the sealing groove in a sealing mode; the sealing frame is a silica gel sealing frame; due to the arrangement of the sealing frame and the sealing groove, the sealing performance of the rear-end box body 1 and the front-end box body 2 after splicing is improved conveniently, and the dustproof and waterproof effects on internal gears are facilitated; the driving assembly arranged by matching the big gear 10 and the small gear 12 is convenient for driving the big gear 10 and the small gear 12 to rotate respectively, when the small gear 12 is driven, the small gear 12 is convenient for driving the big gear 10, the big gear 10 drives the middle gear 8 to rotate, so that when the small gear 12 is driven, the effect of reducing speed and saving labor is achieved, the middle gear 8 is convenient to drive to play a role of reducing speed and rotating, and the slow adjustment of the supporting device is convenient; the large gear 10 is directly driven by the transmission assembly, the middle gear 8 is driven by the large gear 10 to rotate, the rotating speed of the middle gear 8 can be accelerated, a worker can select and drive two adjusting modes according to the using state of the supporting device, the reduction transmission adjustment is selected when the transmission resistance is heavy, and the acceleration transmission adjustment is selected when the transmission resistance is light. In the present invention, the specification size and gear tooth ratio of the middle gear 8, the large gear 10 and the small gear 12 are not particularly limited, and the "small", "middle" and "large" herein refer to the relative comparison among three gears in the rear case 1, for example, the large gear 10 represents the largest one of the three gears in the rear case 1, and the small gear 12 represents the smallest one of the three gears in the rear case 1.

The utility model discloses in, transmission assembly is including corresponding a screw thread section of thick bamboo 13 of gear wheel 10 and pinion 12 rigid coupling in front end box 2, mounting panel 14 in screw thread section of thick bamboo 13 of threaded connection and the transmission shaft that the rotation setting is used for driving gear wheel 10 and pinion 12 in mounting panel 14, through mounting panel 14 of threaded connection in screw thread section of thick bamboo 13, is convenient for install the dismantlement to the transmission shaft.

The utility model discloses in, the transmission shaft is including rotating dwang 15, rigid coupling that sets up in mounting panel 14 at the first connecting axle 16 of dwang 15 inner and the second connecting axle 17 of rigid coupling in dwang 15 outer end, first connecting axle 16 and second connecting axle 17 are the axis body of six horns shape, and the setting through first connecting axle 16 and second connecting axle 17 is convenient for carry out the transmission to the axis body in the gear box.

The utility model discloses in, well gear 8 sets up first pivot 7 on 1 inner wall upper portion of rear end box including rotating, the rear end face of rear end box 1 is run through to the one end of first pivot 7, hexagonal shape's spread groove is seted up to a terminal surface of first pivot 7, the spread groove through 7 one ends of first pivot is convenient for make the regulating spindle in the supporting device insert the spread groove of establishing into first pivot 7, the rotation that carries out well gear 8 drives first pivot 7 and rotates, the regulating spindle in the rotation drive supporting device through first pivot 7 slows down and the acceleration rate rotates.

The utility model discloses in, gear wheel 10 sets up second pivot 9 at 1 inner wall middle part of rear end box including rotating, pinion 12 sets up third pivot 11 in 1 inner wall lower part of rear end box including rotating, and hexagonal shape's driving groove 18 is seted up to the first connecting axle 16 of front end cooperation of second pivot 9 and third pivot 11, when taking apart rear end box 1 and front end box 2, and first connecting axle 16 extracts from the spread groove, is convenient for carry out the split with the axis body in the gear box.

The utility model discloses in, rear end box 1 includes that the rigid coupling is used for the fixed plate 6 of fixed box in rear end box 1 both sides at the first concatenation frame 3 at opening edge and rigid coupling, and the mounting hole has all been seted up to the preceding terminal surface upper portion and the lower part of fixed plate 6, is convenient for install rear end box 1 on supporting arrangement through fixed plate 6.

The utility model discloses in, 3 rigid couplings of the first concatenation frame of rear end opening part cooperation of front end box 2 have second concatenation frame 4, threaded connection has a plurality of splicing bolt 5 on second concatenation frame 4, cooperation splicing bolt 5 has seted up a plurality of concatenation holes in the framework of first concatenation frame 3, be convenient for splice rear end box 1 and front end box 2 through first concatenation frame 3 and second concatenation frame 4 through splicing bolt 5, be convenient for the dismantlement between rear end box 1 and the front end box 2 simultaneously.

The working principle is as follows: when the utility model is used, firstly, the fixing plates 6 at the two sides of the rear box body 1 are fixed at the upper part of one side of the supporting leg of the supporting device through bolts, and then one end of the adjusting shaft in the supporting device is inserted in the connecting groove of the first rotating shaft 7, so that the adjusting shaft is driven to rotate through the first rotating shaft 7 when the gear 8 rotates in the transmission; the working personnel can drive the transmission assembly by using a crank or a wrench, when the transmission assembly transmits the small gear 12, the small gear 12 conveniently drives the large gear 10, the large gear 10 drives the middle gear 8 to rotate, and further the rotating speed of the middle gear 8 is slower than that of the small gear 12, so that the adjusting shaft in the supporting device is driven to rotate at a slow speed; the large gear 10 is directly driven by the transmission component, the middle gear 8 is driven to rotate by the large gear 10, the rotating speed of the middle gear 8 is higher than that of the large gear 10, the rotating speed of the middle gear 8 is increased, and the adjusting shaft in the supporting device is driven to accelerate the rotating speed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A gear box structure for semitrailer strutting arrangement, including rear end box (1), install front end box (2) on rear end box (1), its characterized in that: a middle gear (8), a large gear (10) and a small gear (12) are rotationally arranged in the rear end box body (1), the middle gear (8) is located above the large gear (10), and the small gear (12) is located obliquely below the large gear (10); a box body of the front-end box body (2) is provided with a transmission assembly for driving in a way of matching with the bull gear (10) and the pinion gear (12);

rear end box (1) and front end box (2) are under narrow width form, the rear end arch of front end box (2) has the sealed frame of round, the seal groove has been seted up to the front end cooperation sealed frame of rear end box (1), just be equipped with rubber packing pad in the seal groove, sealed frame is sealed to be inserted and is established in the seal groove.

2. A gearbox arrangement for a semitrailer support device according to claim 1, characterised in that: the transmission assembly comprises a thread cylinder (13) which is fixedly connected in the front end box body (2) corresponding to the bull gear (10) and the pinion (12), an installation plate (14) which is connected in the thread cylinder (13) in a threaded manner and a transmission shaft which is rotatably arranged in the installation plate (14) and is used for driving the bull gear (10) and the pinion (12).

3. A gearbox arrangement for a semitrailer support device according to claim 2, characterised in that: the transmission shaft is including rotating dwang (15), the rigid coupling that sets up in mounting panel (14) at dwang (15) the inner first connecting axle (16) and rigid coupling second connecting axle (17) in dwang (15) outer end, first connecting axle (16) and second connecting axle (17) are the axis body of hex horn shape.

4. A gearbox arrangement for a semitrailer support device according to claim 1, characterised in that: well gear (8) are including rotating first pivot (7) that sets up on rear end box (1) inner wall upper portion, the rear end face of rear end box (1) is run through to the one end of first pivot (7), the spread groove of hex horn shape is seted up to a terminal surface of first pivot (7).

5. A gearbox arrangement for a semitrailer support device according to claim 3, characterised in that: gear wheel (10) are including rotating second pivot (9) that set up in rear end box (1) inner wall middle part, pinion (12) are including rotating third pivot (11) that set up in rear end box (1) inner wall lower part, hexagonal horn shape's drive groove (18) have been seted up in front end cooperation first connecting axle (16) of second pivot (9) and third pivot (11).

6. A gearbox arrangement for a semitrailer support device according to claim 1, characterised in that: rear end box (1) includes that the rigid coupling is used for fixed box's fixed plate (6) in rear end box (1) both sides at the first concatenation frame (3) at the opening edge and rigid coupling, the mounting hole has all been seted up to the preceding terminal surface upper portion and the lower part of fixed plate (6).

7. A gearbox arrangement for a semitrailer support device according to claim 6, characterised in that: the rear end opening part cooperation first concatenation frame (3) rigid coupling of front end box (2) has second concatenation frame (4), threaded connection has a plurality of splicing bolt (5) on second concatenation frame (4), a plurality of concatenation holes have been seted up in cooperation splicing bolt (5) in the framework of first concatenation frame (3).