CN217947573U

CN217947573U - Forklift portal frame and forklift thereof

Info

Publication number: CN217947573U
Application number: CN202222406410.9U
Authority: CN
Inventors: 毛烨鑫; 章明; 陈远东; 周龙钱
Original assignee: Hangzhou Forklift Gantry Co ltd
Current assignee: Hangzhou Forklift Gantry Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-02
Anticipated expiration: 2032-09-09

Abstract

The application relates to a fork truck portal and fork truck thereof, the fork truck portal includes base, door frame and actuating mechanism, door frame is fixed in base upper portion, door frame has two inside walls, actuating mechanism is located between two inside walls and compares one of them inside wall and more is close to another inside wall, fork truck installs above-mentioned fork truck portal. The application has the effect of reducing the shielding of the sight of the driver.

Description

Forklift portal frame and forklift thereof

Technical Field

The application relates to the field of fork truck, especially relate to a fork truck portal and fork truck thereof.

Background

A forklift is an industrial transport vehicle, and refers to various wheel type transport vehicles for loading, unloading, stacking, and short-distance transportation of piece pallet goods.

The forklift mast is a main bearing structure of the forklift fetching device. The mechanism for lifting the goods is also called a gantry. The forklift truck is composed of an inner gantry, a door frame, a fork, a chain wheel, a chain, a lifting oil cylinder, an inclined oil cylinder and the like.

The general lifting oil cylinder is installed in driver's cabin the place ahead, easily blocks fork truck driver's sight at the during operation for the driver can not see the article that fork truck carried well at the during operation, under the narrow and small circumstances in the field of vision, also can produce the bias to the prediction distance between goods and the goods shelves, is unfavorable for the loading and unloading to the goods.

Disclosure of Invention

For reducing driver's sight and sheltering from, this application provides a fork truck portal and fork truck thereof.

The utility model provides a fork truck portal adopts following technical scheme:

the utility model provides a fork truck portal, includes base, door frame and actuating mechanism, the door frame is fixed in base upper portion, the door frame has two inside walls, actuating mechanism is located between two inside walls and compares that one of them inside wall is closer to another inside wall.

Through adopting above-mentioned technical scheme, the base is used for supporting door frame and actuating mechanism, actuating mechanism is located between two inside walls of door frame, and compare one of them inside wall and be closer to another inside wall, make actuating mechanism have the biased effect to door frame, when actuating mechanism is close to one of them inside wall, explain actuating mechanism keeps away from in another inside wall, make actuating mechanism and the side wall of keeping away from directly have great space, can provide the great field of vision of driver, reduce the sheltering from of actuating mechanism to driver's sight, can let the driver can conveniently observe the goods of transport, can also estimate the distance between goods and the goods shelves more accurately, be favorable to the loading and unloading to the goods.

Optionally, the driving mechanism comprises a first driving member and a transmission assembly; the transmission assembly is arranged at the output end of the first driving piece, the door frame is provided with a lifting platform, and the driving mechanism acts on the lifting platform through the output end of the transmission assembly and drives the lifting platform to lift.

Through adopting above-mentioned technical scheme, first driving piece is used for the drive transmission assembly keeps away from or is close to the base direction motion, because transmission assembly's output and elevating platform are connected, so when first driving piece promoted transmission assembly and keeps away from the base, the elevating platform also can be along with keeping away from the base direction and removing, realizes rising. On the contrary, when the transmission assembly is close to the base, the lifting platform is also close to the base, and the descending is realized.

Optionally, the transmission assembly comprises a fixed frame, a transmission wheel and a transmission part, the bottom of the fixed frame is fixedly connected with the output end of the first driving part, the transmission wheel is rotatably connected to the fixed frame, the transmission part is wound on the transmission wheel, one end of the transmission wheel is fixed to the other end of the body of the first driving part, the other end of the body of the first driving part is fixed to the lifting table, and the end, fixed to the lifting table, of the transmission part is the output end.

Through adopting above-mentioned technical scheme, fixed frame is used for supporting the drive wheel, can make under the prerequisite of drive wheel free rotation, can not take place the displacement. The driving medium is around locating the drive wheel, and the drive wheel can reduce the friction to the driving medium under free rotation's effect. Make the contact of drive wheel and driving medium remain stable, driving medium one end is fixed in first driving piece body, and the other end is fixed with the elevating platform, and when first driving piece made the drive wheel upward movement, the driving medium can stimulate the elevating platform and rise.

Optionally, a position where the driving wheel is separated from contact with the output portion of the driving member is defined as a separation point, a connection point where the output end of the driving member is connected to the lifting table is defined as a connection point, and the separation point is located right above the connection point.

By adopting the technical scheme, the separation point is arranged right above the connection point, so that when the transmission piece pulls the lifting platform, a large vertical upward component force can be generated, the horizontal component force can be reduced, the stress direction is optimized, on one hand, power can be saved, the lifting platform can be driven to ascend by small thrust, on the other hand, the horizontal component force is reduced, and the transmission effect of the lifting platform can be improved.

Optionally, the output end of the transmission assembly is fixed in the middle of the lifting table.

Through adopting above-mentioned technical scheme, the place that driving medium and elevating platform are connected is located the middle part of elevating platform, through this kind of mode, makes the driving medium can be even at the atress that the pulling elevating platform made both sides, reduces the problem emergence that the slope appears to the stability of transportation goods has been improved.

Optionally, a guide frame is arranged at the top of the fixing frame, a guide wheel used for supporting a hydraulic hose is arranged in the guide frame, the hydraulic hose is wound on the guide wheel, and the guide wheel is rotatably connected with the guide frame.

By adopting the technical scheme, the guide frame is arranged at the top of the fixed frame, so that the transverse volume of the sum of the fixed frame and the guide frame can be reduced, and the visual field shielding is further reduced. The guide wheel plays a guiding role for the hydraulic hose, the guide wheel is positioned inside the guide frame, the hydraulic hose penetrates through the guide frame and is wound on the guide wheel, the visual field of a driver can not be influenced, and the guide wheel can rotate freely to reduce friction on the hydraulic hose.

Optionally, the elevating platform is provided with a second driving piece, the base is provided with a pump base, one end of the hydraulic hose is connected with the second driving piece, and the other end of the hydraulic hose is connected with the pump base.

Through adopting above-mentioned technical scheme, the second driving piece is used for realizing the expansion of elevating platform, can improve the span to the goods bottom sprag to improve the stability of goods when going up and down or transporting, the pump seat is used for controlling the oil output of hydraulic oil, thereby controls the flexible of elevating platform.

Optionally, the top of the fixing frame is provided with a positioning hole, the bottom of the guide frame is fixed with an installation block matched with the positioning hole, and the installation block is inserted into the positioning hole.

By adopting the technical scheme, the positioning hole at the top of the fixing frame can allow the mounting block to be mounted in the positioning hole, so that the rotation stopping of the guide frame is realized, and the guide frame can be conveniently mounted; on the other hand is when the output with fixed frame installation and first driving piece, and when inside less inconvenient fixing, the instrument that can fix the usefulness can pass the locating hole and install fixed frame to the convenience is installed fixed frame.

Optionally, the position of the lifting platform relative to the door frame is regarded as the front side, and the position of the side wall, far away from the driving mechanism, of the door frame relative to the driving mechanism is regarded as the right side; the opening of the fixing frame for the transmission member to pass through faces the right front side, and the opening of the guide frame for the hydraulic hose to pass through faces the front side.

Through adopting above-mentioned technical scheme, can make the part that driving medium and drive wheel break away from the contact and the part that hydraulic hose and leading wheel break away from the contact set up staggering each other, hydraulic hose and driving medium both can not interfere each other, avoid the during operation intertwine, reduce the probability that equipment broke down, and hydraulic hose's output sets up towards the front side in addition, make hydraulic hose and driving medium be overlapping state to driver's field of vision, can reduce the field of vision of hydraulic hose to driver and shield. The first driving piece is installed in an offset mode, so that the inclination degree of the driving piece can be reduced by enabling the opening of the fixing frame to face the right front side.

Second aspect this application provides a fork truck adopts following technical scheme:

a forklift is provided with the forklift gantry.

Through adopting above-mentioned technical scheme, the fork truck of installation above-mentioned fork truck portal makes the driver can provide good field of vision when driving, reduces the shielding of drive assembly to the field of vision.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the driving mechanism has a biased effect on the door frame, can provide a driver with a large visual field, reduces the shielding of the driving mechanism on the sight of the driver, enables the driver to conveniently observe the carried goods, can estimate the distance between the goods and the goods shelf more accurately, and is favorable for loading and unloading the goods.

2. The separation point is arranged right above the connection point, so that when the transmission part pulls the lifting platform, a large vertical upward component force is generated, the horizontal component force is reduced, the direction of the stress is optimized, on one hand, power can be saved, the lifting platform can be driven to ascend by small thrust, on the other hand, the horizontal component force is reduced, and the transmission effect of the lifting platform can be improved.

Drawings

Fig. 1 is a three-dimensional structure schematic diagram of a forklift mast.

Fig. 2 is an exploded structural schematic view I of a forklift mast part.

Fig. 3 is a schematic exploded view of the forklift mast portion.

Fig. 4 is a cross-sectional structural schematic view of a forklift mast.

Description of reference numerals: 1. a base; 11. a lifting platform; 111. a pulley; 2. a door frame; 21. an outer gantry; 22. a middle door frame; 23. an inner gantry; 231. a column; 2311. a chute; 232. a connecting portion; 24. a fixing plate; 3. a drive mechanism; 31. a first driving member; 32. a transmission assembly; 321. a fixing frame; 3211. a side plate; 3212. a top plate; 3213. a base plate; 3214. positioning holes; 322. a driving wheel; 323. a transmission member; 3231. a separation point; 3232. a connection point; 324. a fixing member; 33. a guide group; 330. a guide frame; 331. a guide wheel; 332. mounting blocks; 333. a hydraulic hose; 334. a second driving member; 335. a pump seat.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The first embodiment is as follows:

referring to fig. 1, a forklift mast comprises a base 1, a door frame 2, a driving mechanism 3 and a lifting platform 11, in this embodiment, the door frame 2 and the driving mechanism 3 are installed on the base 1, the lifting platform 11 can slide up and down relative to the door frame 2 under the action of the driving mechanism 3, the base is fixed on a forklift body, a cab of the forklift body is at a rear position relative to the door frame 2, the lifting platform 11 is at a front position relative to the door frame 2, and the forklift body is not shown in the figure. In this embodiment, the door frame 2 includes an outer door frame 21, a middle door frame 22, and an inner door frame 23, the bottom of the outer door frame 21 is fixed to the base 1, and the outer door frame 21, the middle door frame 22, and the inner door frame 23 have the same structure and different sizes. Taking the inner gantry 23 as an example, the inverted U-shape is divided into two columns 231 and a connecting portion 232, the surfaces of the two columns 231 facing the driving mechanism are inner side wall surfaces, and the connecting portion 232 connects the two columns 231 into a whole for improving the stability of the columns 231.

The outer gantry 21 and the middle gantry 22 are connected in a sliding manner, and the middle gantry 22 and the inner gantry 23 are connected in a sliding manner. In this embodiment, a plurality of hydraulic cylinders are provided, one of which can push the middle door frame 22 to make the middle door frame 22 slide relative to the outer door frame 21, and the other of which can push the inner door frame 23 to make the inner door frame 23 slide relative to the middle door frame 22. The hydraulic cylinders are prior art and therefore not shown in the figures. In the embodiment, three-level height adjustment can be realized by arranging the middle door frame 22 and the inner door frame 23. In other embodiments, the number of stages for height adjustment may be reduced by reducing the number of stages or increased by increasing the number of stages, such as only setting up the outer and

inner gantry

21 and 23.

Referring to fig. 2, at least one fixing plate 24 is disposed between the pillars 231 corresponding to each gantry, so as to improve the stability of the pillars 231, in this embodiment, taking two pillars 231 of the inner gantry 23 as an example, the fixing plate 24 is fixedly connected to the lower portions of the two pillars 231. In order to make the drive mechanism 3 and the inner gantry 23 relatively stationary, the drive mechanism 3 is mounted on a fixing plate 24 at the lower part of the inner gantry 23. The elevating table 11 is movable in the vertical direction of the column 231 by the driving mechanism 3. So as to realize the sliding of the lifting platform 11 relative to the inner gantry 23. The upright post 231 is provided with a sliding groove 2311, the lifting platform 11 is provided with a plurality of pulleys 111 matched with the sliding groove 2311, the pulleys 111 of the lifting platform 11 are arranged on the sliding groove 2311, each sliding groove 2311 is provided with two or more pulleys 111, and the stability of the lifting platform 11 during sliding can be improved. In this embodiment, two pulleys 111 are installed in each sliding slot 2311, and the driving mechanism 3 can make the pulleys 111 roll in the sliding slots 2311.

The driving mechanism 3 comprises a first driving member 31, a transmission assembly 32 and a guide set 33, wherein the first driving member 31 is a hydraulic cylinder and is arranged between two upright posts 231 of the inner door frame 23 and is closer to the other upright post 231 than one upright post 231. By mounting the first driving member 31 in such an offset manner, the view of the driver is less obstructed by the first driving member 31, and the driver can clearly see the conveyed object through the door frame 2. The body of the first driving member 31 is fixed to the fixing plate 24 at the lowest portion of the inner door frame 23, the transmission assembly 32 is fixed to the output end of the first driving member 31, the first driving member 31 can push the transmission assembly 32 to move up and down relative to the body, and the guide set 33 is disposed on the upper portion of the transmission assembly 32. In a stacked arrangement, the occupied space of the drive mechanism 3 in the width direction with respect to the inner mast 23 is reduced, thereby enlarging the field of view of the driver.

Referring to fig. 2 and 3, the transmission assembly 32 includes a fixing frame 321, a transmission wheel 322, and a transmission member 323. The fixing frame 321 comprises two side plates 3211, a top plate 3212 and a bottom plate 3213, the bottom plate 3213 is fixedly connected with the output end of the first driving member 31 through a screw, the top of the side plate 3211 is welded and fixed with the top plate 3212, and the bottom of the side plate 3211 is welded and fixed with the bottom plate 3213, so that the fixing frame is integrated. The top plate 3212 is provided with a positioning hole 3214. In this embodiment, the positioning holes 3214 are rectangular, and when the internal space of the fixing frame is not large, the mounting tool can pass through the positioning holes 3214, so that the mounting tool can rotate the screw conveniently, and the fixing frame 321 is fixedly connected to the output end of the first driving member 31.

In this embodiment, the driving wheel 322 is a chain wheel, and the driving member 323 is a chain. In other embodiments, the drive wheel 322 and drive member 323 may be in the form of a belt and pulley. The transmission wheel 322 is located in the two side plates 3211, and two ends of the transmission wheel are respectively rotatably connected with the two side plates 3211, so that the transmission member 323 is wound around the transmission wheel 322 and the transmission member 323 is engaged with the transmission wheel 322. A fixing member 324 is fixed on the body of the first driving member 31 and on a side close to the output end, one end of the transmission member 323 is fixedly connected to the fixing member 324, the other end of the transmission member 323 is fixedly connected to the middle position of the lifting table 11, and the connection between the transmission member 323 and the lifting table 11 is the output end. The connection of the output end and the middle position of the lifting platform 11 can make the lifting platform 11 not easy to incline towards any one column 231 of the two columns 231 of the inner gantry 23 when lifting, and when the transmission part 323 pulls the lifting platform 11 to lift, the two sides of the lifting platform 11 relative to the columns 231 can keep balance.

The position where the transmission wheel 322 is out of contact with the output portion of the transmission member 323 is defined as a separation point 3231, and the junction of the output end of the transmission member 323 and the lift table 11 is defined as a junction point 3232, and the separation point 3231 is located directly above the junction point. The generation of horizontal component force can be reduced when the transmission member 323 pulls the lifting platform 11, and the force transmission effect of the transmission member 323 can be improved. In other embodiments, the driving wheel 322 and the driving member 323 can be in the form of a belt and a roller to pull the lifting platform 11 to rise and fall.

The guide group 33 includes a guide frame 330, a guide wheel 331, a hydraulic hose 333, and a second driving member 334. The bottom of the guide frame 330 is fixed with an installation block 332, and the size of the installation block 332 is the same as that of the positioning hole 3214. During installation, the installation block 332 is embedded into the positioning hole 3214 to realize initial fixation of the guide frame 330 and the fixed frame 321, and then the guide frame 330 and the fixed frame 321 are connected through threads to realize final fixation. The guide wheel 331 is arranged inside the guide frame 330, and two ends of the guide wheel 331 are rotatably connected with the inner side wall of the guide wheel 331 and used for supporting the hydraulic hose 333; one end of the hydraulic hose 333 is connected with the pump base 335, and the other end passes through the guide frame 330 and is connected to the second driving member 334; in this embodiment, the pump mount 335 is a pump, and the second driving member 334 is a hydraulic cylinder mounted on the lifting platform 11 for adjusting the expansion or contraction of the lifting platform 11.

Referring to fig. 4, the left side or the right side of the fixing frame 321 may be determined by the approaching or separating of the fixing frame 321 relative to the two inner side walls of the door frame 2, in this embodiment, taking the position of the fixing frame in fig. 1 as an example, the position of the lifting platform relative to the door frame is taken as the front side, and the position of the side wall of the door frame far from the driving mechanism relative to the driving mechanism is taken as the right side; the opening of the fixing frame for the transmission part to pass through faces the right front side, the opening of the guide frame for the hydraulic hose to pass through faces the front side, the hydraulic hose 333 and the transmission part 323 can be arranged in such a way that the hydraulic hose and the transmission part do not interfere with each other, the output end of the hydraulic hose is arranged towards the front side, the hydraulic hose and the transmission part are in an overlapped state for the visual field of a driver, and the visual field shielding of the hydraulic hose to the driver can be reduced.

The implementation principle of the embodiment is as follows: when the lifting platform 11 needs to be lifted, the driving wheel 322 is pushed to move upwards through the first driving piece 31, and the driving piece 323 pulls the lifting platform 11 to move upwards similarly, so that the lifting motion of the lifting platform 11 is realized; when the lifting platform 11 is required to descend, the output end of the first driving piece 31 is reset, the driving wheel 322 moves downwards, and the lifting platform 11 also descends.

Example two:

a forklift is provided with a forklift gantry of the first embodiment.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A forklift mast, its characterized in that: including base (1), door frame (2) and actuating mechanism (3), door frame (2) are fixed in base (1) upper portion, door frame (2) have two inside walls, actuating mechanism (3) are located between two inside walls and compare one of them inside wall and be closer to another inside wall.

2. The forklift mast of claim 1, wherein: the driving mechanism (3) comprises a first driving part (31) and a transmission assembly (32); drive assembly (32) set up in the output of first driving piece (31), door frame (2) are provided with elevating platform (11), actuating mechanism (3) act on elevating platform (11) through the output of drive assembly (32), and drive elevating platform (11) go up and down.

3. The forklift mast of claim 2, wherein: drive assembly (32) are including fixed frame (321), drive wheel (322) and driving medium (323), fixed frame (321) bottom with the output fixed connection of first driving piece (31), drive wheel (322) rotate connect in fixed frame (321), driving medium (323) are around locating drive wheel (322) and one end are fixed in first driving piece (31) body other end is fixed in elevating platform (11), the one end that driving medium (323) are fixed in elevating platform (11) is the output.

4. A forklift mast as claimed in claim 3, wherein: the position where the transmission wheel (322) is separated from the contact with the output part of the transmission piece (323) is defined as a separation point (3231), the connection position of the output end of the transmission piece (323) and the lifting platform (11) is defined as a connection point (3232), and the separation point is positioned right above the connection point.

5. The forklift mast as claimed in any one of claims 2 to 4, wherein: the output end of the transmission assembly (32) is fixed in the middle of the lifting platform (11).

6. The forklift mast as claimed in claim 3 or 4, wherein: the top of the fixed frame (321) is provided with a guide frame (330), a guide wheel (331) used for supporting a hydraulic hose (333) is arranged in the guide frame (330), the hydraulic hose (333) is wound on the guide wheel (331), and the guide wheel (331) is rotatably connected with the guide frame (330).

7. The forklift mast of claim 6, wherein: elevating platform (11) are provided with second driving piece (334), base (1) is provided with pump seat (335), hydraulic hose (333) one end with second driving piece (334) are connected, and the other end connect in pump seat (335).

8. The forklift mast of claim 6, wherein: the top of the fixed frame (321) is provided with a positioning hole (3214), the bottom of the guide frame (330) is fixed with an installation block (332) matched with the positioning hole (3214), and the installation block (332) is inserted into the positioning hole (3214).

9. The forklift mast of claim 6, wherein: the position of the lifting platform (11) relative to the door frame (2) is regarded as the front side, and the position of the side wall, far away from the driving mechanism (3), of the door frame (2) relative to the driving mechanism (3) is regarded as the right side; the opening of the fixing frame (321) through which the transmission member (323) passes faces the front right side, and the opening of the guide frame (330) through which the hydraulic hose (333) passes faces the front side.

10. A forklift, characterized in that: the forklift is fitted with a forklift mast as claimed in any one of claims 1-9.