CN214141433U - Movable arm structure for underground forklift - Google Patents
Movable arm structure for underground forklift Download PDFInfo
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- CN214141433U CN214141433U CN202023229050.7U CN202023229050U CN214141433U CN 214141433 U CN214141433 U CN 214141433U CN 202023229050 U CN202023229050 U CN 202023229050U CN 214141433 U CN214141433 U CN 214141433U
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- 230000007306 turnover Effects 0.000 claims abstract description 11
- 230000002452 interceptive effect Effects 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000003028 elevating effect Effects 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 210000000078 claw Anatomy 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a movable arm structure for an underground forklift, which comprises a movable arm, a lifting oil cylinder, a turnover oil cylinder, a rocker arm, a pull rod, a cross beam, a fork frame, a fork and a lifting device; the right side of the fork frame is provided with a fork which is horizontally and transversely arranged, the left end of the fork extends into the fork frame, and the fork is vertically lifted through a lifting device; a movable arm is vertically and transversely arranged on the left side of the fork frame, and two ends of the movable arm are respectively and rotationally connected with the fork frame and the front frame; a lifting oil cylinder is arranged right below the movable arm, a piston rod of the lifting oil cylinder is rotatably connected with the lower middle position of the movable arm, and the fixed end of the lifting oil cylinder is rotatably connected with the front frame; a cross beam is arranged between the two movable arms, a rocker arm with a rotating shaft is arranged on the cross beam, the left end of the rocker arm is rotatably connected with a piston rod of the turnover oil cylinder, and the right end of the rocker arm is rotatably connected with the fork frame through a pull rod. The utility model discloses a lift cylinder uses with the cooperation of upset hydro-cylinder, has improved fork truck's cross-country performance in the pit and has promoted the height.
Description
Technical Field
The utility model relates to a haulage equipment technical field, concretely relates to swing arm structure that fork truck used in pit.
Background
A forklift is an industrial transport vehicle, and is a wheel-type transport vehicle for performing operations of loading, unloading, stacking, and short-distance transportation of piece goods, and plays an important role in transporting goods.
The current underground fork truck has limited loading capacity due to the fact that the chassis is too low, the off-road performance is weak, and the forward propelling distance of the fork is limited. Therefore, the above problems need to be solved.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a swing arm structure that fork truck used in pit uses through the cooperation of lift cylinder and upset hydro-cylinder, has improved fork truck's off-road performance in pit and has promoted the height.
In order to solve the technical problem, the utility model discloses take following technical scheme: the utility model discloses a swing arm structure that fork truck used in pit, its innovation point lies in: the lifting device comprises a movable arm, a lifting oil cylinder, a turnover oil cylinder, a rocker arm, a pull rod, a cross beam, a fork frame, a fork and a lifting device; the fork frame is of a hollow cuboid structure which is vertically and longitudinally arranged, and the left side surface and the right side surface of the fork frame are both open; the right side of the fork frame is also symmetrically provided with forks in the front and back directions, each fork is horizontally and transversely arranged, the left end of each fork extends into the fork frame, and the forks vertically lift through a lifting device; movable arms are symmetrically and vertically arranged on the left side of the fork frame at intervals in a front-back mode, each movable arm is transversely arranged, and the left end and the right end of each movable arm are respectively and vertically and rotatably connected with the front inner side face and the back inner side face of the fork frame and the corresponding position of a front frame of the underground forklift; a lifting oil cylinder is vertically and obliquely arranged right below each movable arm, a piston rod of each lifting oil cylinder is vertically and rotatably connected with the lower middle position corresponding to the movable arm, and the fixed end of each lifting oil cylinder is vertically and rotatably connected with the corresponding position of the front frame of the underground forklift; the middle of the two movable arms is horizontally and longitudinally provided with a cross beam between the middle upper positions, the middle position of the cross beam is vertically and transversely provided with a rocker arm with a rotating shaft, the left end of the rocker arm is vertically and obliquely arranged, a piston rod of the turnover oil cylinder is vertically and rotatably connected, the right end of the rocker arm is vertically and rotatably connected with the corresponding position of the inner top surface of the fork frame through a pull rod, and the fixed end of the turnover oil cylinder is vertically and rotatably connected with the corresponding position of the front frame of the underground forklift.
Preferably, the connection point of each lifting cylinder on the front frame is arranged below the connection point of the corresponding movable arm on the front frame to the left, and the distance between the connection point and the movable arm is larger than 700 mm.
Preferably, the vertical distance between the attachment point of each said boom to the fork carriage and the attachment point of said tie bar to the fork carriage is greater than 500 mm.
Preferably, the connection points of the cross beam on the corresponding movable arm are all arranged at the right upper position of the connection point of the corresponding lifting oil cylinder on the corresponding movable arm.
Preferably, the thickness of the steel plate of each of the boom, the swing arm and the fork carriage is greater than 60 mm.
Preferably, a pull rod fixing frame is vertically arranged in the middle of the inner top surface of the fork frame close to the left side of the inner top surface, and the right end of the rocker arm is vertically and rotatably connected with the pull rod fixing frame through a pull rod.
Preferably, the inside of the fork frame is also provided with lifting frames at intervals in parallel up and down by the right side of the fork frame, each lifting frame is horizontally and longitudinally arranged and is arranged in a way of not interfering with a connecting point of each movable arm on the fork frame and the pull rod fixing frame; two ends of the two lifting frames are respectively and symmetrically provided with a lifting device, each lifting device is arranged in a way of not interfering with a connecting point of the corresponding movable arm on the fork frame, and the two lifting frames respectively do vertical lifting motion in the fork frame through the lifting devices; the left end of each fork is claw shape respectively and two the crane joint is fixed, and follows two respectively the length direction horizontal slip of crane to do vertical elevating movement along with the crane respectively.
Preferably, each lifting device comprises a motor, a motor fixing seat, a gear, a rack, a limiting plate and a reinforcing plate; racks are also vertically and symmetrically arranged on the front inner side face and the rear inner side face of the fork frame, and the tooth surface of each rack is arranged towards the directions of the two lifting frames; limiting plates are horizontally arranged at the upper end and the lower end of each rack respectively, and each limiting plate is fixedly connected with the left inner side face and the right inner side face of the fork frame respectively and limits the vertical lifting movement of the lifting frame; motor fixing seats are horizontally and symmetrically arranged at the lower positions of the front outer side surface and the rear outer side surface of each lifting frame, each motor fixing seat is arranged in a non-interfering manner with the corresponding rack, a plurality of reinforcing plates are vertically arranged at intervals on the lower surface of each motor fixing seat, each reinforcing plate is fixedly connected with the corresponding motor fixing seat and the corresponding lifting frame respectively, and supports and reinforces the corresponding motor fixing seat respectively; a motor is horizontally and fixedly arranged on one side, close to the rack, of the upper surface of each motor fixing seat, and the output end of each motor is meshed with the corresponding rack through a gear; under the drive of the motor, the lifting frame vertically lifts in the fork frame through the meshing and matching of the gear and the rack.
Preferably, the device further comprises a lifting device; lifting devices are symmetrically arranged on the front and back of the inner top surface of the fork frame, and each lifting device is arranged in a way of not interfering with the pull rod fixing frame; the fixed end of each lifting device is fixedly connected with the inner top surface of the fork frame, the lifting end of each lifting device is fixedly connected with one lifting frame, and the lifting ends of the lifting devices are matched with the two lifting frames in an auxiliary mode in a vertical lifting mode.
Preferably, each lifting device comprises a roller, a roller bracket, a steel wire rope and a shackle; roller supports are symmetrically and horizontally arranged at the front and the back of the inner top surface of the fork frame, a roller is vertically arranged on each roller support, and each roller is vertically and longitudinally rotationally connected with the corresponding roller support; the left side surface of the upper lifting frame is positioned at the lower position, and is symmetrically welded with shackles in a front-back horizontal mode, each shackle is arranged at the left end of the corresponding fork in a non-interfering mode, and the shackles horizontally exceed the left end of the corresponding fork; the lower end of each steel wire rope is fixedly connected with the lifting frame through a shackle, the upper end of each steel wire rope is wound on the corresponding roller, and the two lifting frames are matched in an auxiliary mode in a vertical lifting motion mode.
The utility model has the advantages that:
(1) the utility model improves the cross-country performance and the lifting height of the underground forklift by matching the lifting oil cylinder and the overturning oil cylinder;
(2) the utility model discloses under elevating gear's effect, the fork is elevating movement along with the crane, simultaneously through hoisting device's supplementary cooperation, has strengthened fork truck's in the pit loading capacity.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a movable arm structure for an underground forklift according to the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic view of the structure of the fork carriage portion of fig. 1.
Fig. 4 is a side view of fig. 3.
Wherein, 1-a movable arm; 2-lifting the oil cylinder; 3-turning over the oil cylinder; 4-a rocker arm; 5-a pull rod; 6-the fork carriage; 7-a pallet fork; 8-a cross beam; 9-a pull rod fixing frame; 10-a lifting frame; 11-a limiting block; 12-a motor; 13-motor fixing seat; 14-a gear; 15-a rack; 16-a limiting plate; 17-a reinforcement plate; 18-a roller; 19-a drum support; 20-a steel wire rope; and 21-shackle removal.
Detailed Description
The technical solution of the present invention will be described clearly and completely through the following detailed description.
The utility model discloses a movable arm 1 structure for an underground forklift, which comprises a movable arm 1, a lifting oil cylinder 2, a turnover oil cylinder 3, a rocker arm 4, a pull rod 5, a cross beam 8, a fork frame 6, a fork 7 and a lifting device; the specific structure is as shown in fig. 1 and 2, the fork frame 6 is a hollow cuboid structure which is vertically and longitudinally arranged, and the left side and the right side of the fork frame are both open; the left side of the fork frame 6 is also provided with movable arms 1 symmetrically at intervals in a front-back vertical manner, each movable arm 1 is transversely arranged, and the left end and the right end of each movable arm 1 are respectively and vertically and rotatably connected with the front inner side surface and the back inner side surface of the fork frame 6 and the corresponding position of a front frame of an underground forklift; a lifting oil cylinder 2 is vertically and obliquely arranged right below each movable arm 1, a piston rod of each lifting oil cylinder 2 is vertically and rotatably connected with the lower middle position of the corresponding movable arm 1, and the fixed end of each lifting oil cylinder is vertically and rotatably connected with the corresponding position of the front frame of the underground forklift; the connecting point of each lifting oil cylinder 2 on the front frame is arranged on the left side below the connecting point of the corresponding movable arm 1 on the front frame, and the distance between the two connecting points is larger than 700 mm.
As shown in fig. 1 and 2, a cross beam 8 is horizontally and longitudinally arranged between the middle upper positions of the two movable arms 1, a rocker arm 4 with a rotating shaft is vertically and transversely arranged at the middle position of the cross beam 8, the left end of the rocker arm 4 is vertically and rotatably connected with a piston rod of a vertically and obliquely arranged turnover oil cylinder 3, and the fixed end of the turnover oil cylinder 3 is vertically and rotatably connected with the corresponding position of a front frame of the underground forklift; a pull rod fixing frame 9 is vertically arranged in the middle of the inner top surface of the fork frame 6 close to the left side of the inner top surface, and the right end of the rocker arm 4 is vertically and rotatably connected with the inner top surface of the fork frame 6 through a pull rod 5. Wherein the vertical distance between the connecting point of each movable arm 1 on the fork frame 6 and the connecting point of the pull rod 5 on the fork frame 6 is more than 500 mm; the connecting points of the cross beam 8 on the corresponding movable arm 1 are all arranged at the right upper position of the connecting point of the corresponding lifting oil cylinder 2 on the corresponding movable arm 1; the thickness of the steel plate of each of the boom 1, the swing arm 4 and the fork carriage 6 is more than 60 mm. The utility model discloses a lift hydro-cylinder 2 and the cooperation of upset hydro-cylinder 3 are used, have improved fork truck's cross-country performance in the pit and have promoted the height.
The utility model is provided with the lifting frames 10 in the fork frame 6 at the right side and in parallel at intervals up and down, each lifting frame 10 is horizontally and longitudinally arranged and is arranged without interfering with the connecting point of each movable arm 1 on the fork frame 6 and the pull rod fixing frame 9; as shown in fig. 1 to 4, two ends of two lifting frames 10 are respectively and symmetrically provided with a lifting device, each lifting device is arranged at a connection point of the corresponding movable arm 1 on the fork frame 6 without interfering with each other, and the two lifting frames 10 respectively do vertical lifting motion in the fork frame 6 through the lifting devices;
each lifting device comprises a motor 12, a motor fixing seat 13, a gear 14, a rack 15, a limiting plate 16 and a reinforcing plate 17; as shown in fig. 3 and 4, racks 15 are also vertically and symmetrically arranged on the front inner side and the rear inner side of the fork frame 6, and the tooth surface of each rack 15 is respectively arranged towards the directions of the two lifting frames 10; limiting plates 16 are respectively horizontally arranged at the upper end and the lower end of each rack 15, and each limiting plate 16 is respectively fixedly connected with the left inner side and the right inner side of the fork frame 6 and limits the vertical lifting movement of the lifting frame 10; motor fixing seats 13 are horizontally and symmetrically arranged at the lower positions of the front outer side face and the rear outer side face of each lifting frame 10, each motor fixing seat 13 is arranged in a non-interfering mode with the corresponding rack 15, a plurality of reinforcing plates 17 are vertically arranged on the lower surface of each motor fixing seat 13 at intervals, each reinforcing plate 17 is fixedly connected with the corresponding motor fixing seat 13 and the corresponding lifting frame 10 respectively, and the corresponding motor fixing seats 13 are supported and reinforced respectively; a motor 12 is horizontally and fixedly arranged on one side, close to the rack 15, of the upper surface of each motor fixing seat 13, and the output end of each motor 12 is meshed with the corresponding rack 15 through a gear 14; the utility model discloses under the drive of motor 12, through the meshing cooperation of gear 14 and rack 15, vertical elevating movement is done in the inside of fork frame 6 to crane 10.
As shown in fig. 1-4, the fork arms 7 are symmetrically arranged on the right side of the fork frame 6 in the front-back direction, each fork arm 7 is horizontally and transversely arranged, the left end of each fork arm 7 is in a claw shape and is fixedly connected with two lifting frames 10 in a clamping mode, and the two fork arms 7 horizontally slide along the length direction of the two lifting frames 10 respectively and vertically move along with the lifting frames 10 respectively.
The lifting devices are symmetrically arranged at the front and the back of the inner top surface of the fork frame 6, and each lifting device is arranged without interfering with the pull rod fixing frame 9; the fixed end of each lifting device is respectively and fixedly connected with the inner top surface of the fork frame 6, and the lifting end of each lifting device is respectively and fixedly connected with the lifting frame 10 above; wherein each lifting device comprises a roller 18, a roller bracket 19, a steel wire rope 20 and a shackle 21; as shown in fig. 1 to 4, roller supports 19 are symmetrically horizontally arranged at the front and back of the inner top surface of the fork frame 6, a roller 18 is vertically arranged on each roller support 19, and each roller 18 is vertically and longitudinally rotatably connected with the corresponding roller support 19; the left side surface of the upper lifting frame 10 is further provided with shackles 21 in a front-back symmetrical horizontal welding mode, each shackle 21 is arranged at the left end of the corresponding fork 7 in a non-interfering mode, and the shackles horizontally exceed the left end of the corresponding fork 7; the lower end of each steel wire rope 20 is fixedly connected with the upper lifting frame 10 through a shackle 21, the upper end of each steel wire rope is wound on the corresponding roller 18, and the two lifting frames 10 are matched in an auxiliary mode in a vertical lifting mode. The utility model discloses under elevating gear's effect, the fork 7 is elevating movement along with crane 10, simultaneously through elevating gear's supplementary cooperation, has strengthened fork truck's in the pit loading capacity.
The utility model has the advantages that:
(1) the utility model improves the cross-country performance and the lifting height of the underground forklift by matching the lifting oil cylinder 2 and the overturning oil cylinder 3;
(2) the utility model discloses under elevating gear's effect, the fork 7 is elevating movement along with crane 10, simultaneously through elevating gear's supplementary cooperation, has strengthened fork truck's in the pit loading capacity.
The above-mentioned embodiments are only described as the preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention, and the technical content of the present invention, which is claimed by the present invention, is fully recorded in the technical claims.
Claims (10)
1. A swing arm structure for an underground forklift is characterized in that: the lifting device comprises a movable arm, a lifting oil cylinder, a turnover oil cylinder, a rocker arm, a pull rod, a cross beam, a fork frame, a fork and a lifting device; the fork frame is of a hollow cuboid structure which is vertically and longitudinally arranged, and the left side surface and the right side surface of the fork frame are both open; the right side of the fork frame is also symmetrically provided with forks in the front and back directions, each fork is horizontally and transversely arranged, the left end of each fork extends into the fork frame, and the forks vertically lift through a lifting device; movable arms are symmetrically and vertically arranged on the left side of the fork frame at intervals in a front-back mode, each movable arm is transversely arranged, and the left end and the right end of each movable arm are respectively and vertically and rotatably connected with the front inner side face and the back inner side face of the fork frame and the corresponding position of a front frame of the underground forklift; a lifting oil cylinder is vertically and obliquely arranged right below each movable arm, a piston rod of each lifting oil cylinder is vertically and rotatably connected with the lower middle position corresponding to the movable arm, and the fixed end of each lifting oil cylinder is vertically and rotatably connected with the corresponding position of the front frame of the underground forklift; the middle of the two movable arms is horizontally and longitudinally provided with a cross beam between the middle upper positions, the middle position of the cross beam is vertically and transversely provided with a rocker arm with a rotating shaft, the left end of the rocker arm is vertically and obliquely arranged, a piston rod of the turnover oil cylinder is vertically and rotatably connected, the right end of the rocker arm is vertically and rotatably connected with the corresponding position of the inner top surface of the fork frame through a pull rod, and the fixed end of the turnover oil cylinder is vertically and rotatably connected with the corresponding position of the front frame of the underground forklift.
2. The boom structure for a downhole forklift according to claim 1, wherein: and the connecting point of each lifting oil cylinder on the front frame is arranged on the left side below the connecting point of the corresponding movable arm on the front frame, and the distance between the two connecting points is larger than 700 mm.
3. The boom structure for a downhole forklift according to claim 1, wherein: the vertical distance between the attachment point of each said boom to the fork carriage and the attachment point of said tie bar to the fork carriage is greater than 500 mm.
4. The boom structure for a downhole forklift according to claim 1, wherein: and the connecting points of the cross beam on the corresponding movable arm are arranged at the upper right side of the connecting point of the lifting oil cylinder on the corresponding movable arm.
5. The boom structure for a downhole forklift according to claim 1, wherein: the thickness of the steel plate of each movable arm, each rocker arm and each fork frame is larger than 60 mm.
6. The boom structure for a downhole forklift according to claim 1, wherein: and a pull rod fixing frame is vertically arranged in the middle of the inner top surface of the fork frame close to the left side of the inner top surface, and the right end of the rocker arm is vertically and rotatably connected with the pull rod fixing frame through a pull rod.
7. The boom structure for a downhole forklift according to claim 6, wherein: lifting frames are arranged in the fork frame close to the right side of the fork frame at intervals in parallel up and down, each lifting frame is horizontally and longitudinally arranged and is arranged with a connecting point of each movable arm on the fork frame and the pull rod fixing frame without interfering with each other; two ends of the two lifting frames are respectively and symmetrically provided with a lifting device, each lifting device is arranged in a way of not interfering with a connecting point of the corresponding movable arm on the fork frame, and the two lifting frames respectively do vertical lifting motion in the fork frame through the lifting devices; the left end of each fork is claw shape respectively and two the crane joint is fixed, and follows two respectively the length direction horizontal slip of crane to do vertical elevating movement along with the crane respectively.
8. The boom structure for a downhole forklift according to claim 7, wherein: each lifting device comprises a motor, a motor fixing seat, a gear, a rack, a limiting plate and a reinforcing plate; racks are also vertically and symmetrically arranged on the front inner side face and the rear inner side face of the fork frame, and the tooth surface of each rack is arranged towards the directions of the two lifting frames; limiting plates are horizontally arranged at the upper end and the lower end of each rack respectively, and each limiting plate is fixedly connected with the left inner side face and the right inner side face of the fork frame respectively and limits the vertical lifting movement of the lifting frame; motor fixing seats are horizontally and symmetrically arranged at the lower positions of the front outer side surface and the rear outer side surface of each lifting frame, each motor fixing seat is arranged in a non-interfering manner with the corresponding rack, a plurality of reinforcing plates are vertically arranged at intervals on the lower surface of each motor fixing seat, each reinforcing plate is fixedly connected with the corresponding motor fixing seat and the corresponding lifting frame respectively, and supports and reinforces the corresponding motor fixing seat respectively; a motor is horizontally and fixedly arranged on one side, close to the rack, of the upper surface of each motor fixing seat, and the output end of each motor is meshed with the corresponding rack through a gear; under the drive of the motor, the lifting frame vertically lifts in the fork frame through the meshing and matching of the gear and the rack.
9. The boom structure for a downhole forklift according to claim 7, wherein: the device also comprises a lifting device; lifting devices are symmetrically arranged on the front and back of the inner top surface of the fork frame, and each lifting device is arranged in a way of not interfering with the pull rod fixing frame; the fixed end of each lifting device is fixedly connected with the inner top surface of the fork frame, the lifting end of each lifting device is fixedly connected with one lifting frame, and the lifting ends of the lifting devices are matched with the two lifting frames in an auxiliary mode in a vertical lifting mode.
10. The boom structure for a downhole forklift according to claim 9, wherein: each lifting device comprises a roller, a roller bracket, a steel wire rope and a shackle; roller supports are symmetrically and horizontally arranged at the front and the back of the inner top surface of the fork frame, a roller is vertically arranged on each roller support, and each roller is vertically and longitudinally rotationally connected with the corresponding roller support; the left side surface of the upper lifting frame is positioned at the lower position, and is symmetrically welded with shackles in a front-back horizontal mode, each shackle is arranged at the left end of the corresponding fork in a non-interfering mode, and the shackles horizontally exceed the left end of the corresponding fork; the lower end of each steel wire rope is fixedly connected with the lifting frame through a shackle, the upper end of each steel wire rope is wound on the corresponding roller, and the two lifting frames are matched in an auxiliary mode in a vertical lifting motion mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023229050.7U CN214141433U (en) | 2020-12-29 | 2020-12-29 | Movable arm structure for underground forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023229050.7U CN214141433U (en) | 2020-12-29 | 2020-12-29 | Movable arm structure for underground forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214141433U true CN214141433U (en) | 2021-09-07 |
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ID=77542504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023229050.7U Active CN214141433U (en) | 2020-12-29 | 2020-12-29 | Movable arm structure for underground forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214141433U (en) |
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2020
- 2020-12-29 CN CN202023229050.7U patent/CN214141433U/en active Active
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