Gantry height lifting presetting mechanism of reach forklift

Abstract

The utility model relates to a portal height lifting presetting mechanism of a reach forklift. The technical problems that in the prior art, manual judgment is relied on, accuracy is poor, safety accidents are likely to happen, and consequently equipment is damaged are solved. Comprising door frame fixing seats arranged at the two ends of one side of a vehicle body, a door frame body is arranged between the door frame fixing seats, fork piece connecting seats are arranged in the door frame body, fixed door frames are arranged on the two sides of the door frame body respectively, a movable door frame is arranged on one side of each fixed door frame, fork piece door frames are arranged on one side of each movable door frame, and the fork piece connecting seats are movably arranged between the fork piece door frames. A fork piece lifting preset assembly is arranged between the fork piece connecting base and the fork piece door frame, and a door frame lifting preset assembly is arranged between the fixed door frame and the movable door frame. The gantry lifting device has the advantages that the lifting height of the gantry body is controlled through the gantry lifting preset assembly, the lifting height of the fork piece connecting seat is controlled through the fork piece lifting preset assembly, the operation height can be rapidly positioned, repeated manual debugging is not needed, the preparation time is shortened, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to portal height presetting equipment technical field, concretely relates to a portal height lifting preset mechanism of front -moving type forklift. BACKGROUND

[0002] With the rapid development of logistics industry and production and manufacturing industry, the handling equipment industry such as forklift has also been rapidly developed, and forklift is an industrial handling vehicle, which is a kind of various wheeled handling vehicles for loading and unloading, stacking and short-distance transporting of piece pallet goods. The three-stage portal assembly of forklift on the market is various, and basically can satisfy the use demand of people, but the current three-stage portal assembly still mainly relies on manual judgment in lifting height, and the precision is poor, and safety accidents are prone to occur to cause equipment damage. SUMMARY

[0003] The utility model aims at above -mentioned problem, provides a portal height lifting preset mechanism of front -moving type forklift.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme: a portal height lifting preset mechanism of front -moving type forklift, including the portal fixed base of setting in the both ends of one side of vehicle body, the portal fixed base between being equipped with portal body, the portal body inside being equipped with fork connecting seat, the both sides of portal body are equipped with the fixed portal of being fixedly connected with portal fixed base, the fixed portal away from portal fixed base one side is equipped with movable portal, the movable portal away from fixed portal one side is equipped with fork portal, the fork connecting seat movably setting between fork portal, the fork connecting seat with fork portal between being equipped with the fork lifting preset component of controlling the lifting height of fork connecting seat, and the fixed portal with movable portal between being equipped with the portal lifting preset component of controlling the lifting height of movable portal. The lifting height of fork connecting seat is controlled through fork lifting preset component, and the lifting height of movable portal is controlled through portal lifting preset component, so that the operator inputs preset value in advance, and movable portal and fork connecting seat will automatically lift to specified height, improve work efficiency, preset function can quickly adjust lifting height when in a variety of working scenes, and can guarantee lifting to specified height, realize accurate butt joint, and improve operation accuracy.

[0005] In the above-mentioned portal height lifting preset mechanism of front -moving type forklift, the movable portal away from the one end of portal fixed base one side is equipped with portal lifting installation part, and the portal lifting installation part away from the one side of movable portal is equipped with portal height preset installation part connected with fixed portal. Portal lifting installation part is used for the lifting function installation of movable portal, and portal height preset installation part is used for the installation of height preset function of movable portal.

[0006] In the mast height lifting preset mechanism of the forward-moving forklift, the movable mast is provided with a mast lifting fixing plate corresponding to the mast lifting mounting portion on the side away from the one end of the mast lifting mounting portion, and the mast lifting mounting portion and the mast lifting fixing plate are respectively provided with mast hydraulic lifting rods on the two sides, the upper end of the mast hydraulic lifting rod is in contact with the lower end of the mast lifting mounting portion, and the lower end of the mast hydraulic lifting rod is in contact with the mast lifting fixing plate. The movable mast realizes the action of height lifting through the mast hydraulic lifting rod, and the mast hydraulic lifting rod runs against the mast lifting mounting portion to drive the movable mast to run.

[0007] In the mast height lifting preset mechanism of the forward-moving forklift, the two ends of the mast lifting mounting portion are provided with balance wheels on the inner sides, the balance wheels are provided with balance chains, and the balance chains are provided with balance blocks on the side close to the one end of the mast fixed base. The balance wheels play a role of maintaining balance when the movable mast is lifted, and offset the unbalanced force generated by factors such as change of gravity center and external force during operation, so that the mast maintains a stable running state.

[0008] In the mast height lifting preset mechanism of the forward-moving forklift, the mast lifting preset assembly comprises a mast height preset device arranged on the mast height preset mounting portion, the mast height preset device is provided with a first pulley with an encoder and a first proximity switch, the movable mast is provided with a mast height preset plate between the one end close to the mast fixed base, and the mast height preset plate is provided with a first synchronous belt corresponding to the first pulley between the mast height preset plate and the mast lifting mounting portion.

[0009] In the mast height lifting preset mechanism of the forward-moving forklift, one end of the first synchronous belt is connected to the mast lifting mounting portion through a first upper connecting piece, and the other end is connected to the mast height preset plate through a first lower connecting piece. When the movable mast runs, the first synchronous belt moves, and the mast height preset device is in a static state. The first synchronous belt is connected to the first pulley, the first pulley rotates under the driving of the first synchronous belt, at the same time, the first pulley transmits the rotation data to the first proximity switch, the first proximity switch transmits the data to the control sensor, and the control sensor controls the operation of the mast hydraulic lifting rod.

[0010] In the mast height lifting preset mechanism of the forward-moving forklift, the fork connecting base is provided with a fork lifting preset plate between the two, the fork mast is provided with a fork lifting fixing plate between the one end away from the mast fixed base, and the fork mast is provided with a fork lifting mounting plate between the one end close to the mast fixed base.

[0011] In the mast height lifting preset mechanism of the forward-moving forklift, the middle part of the fork lifting mounting plate is provided with a fork hydraulic lifting rod, the fork hydraulic lifting rod is provided with a chain wheel set at the end away from the fork lifting mounting plate, a plurality of connecting chains are wound on the chain wheel set, and the lower ends of the connecting chains are fixedly connected with the fork lifting preset plate.

[0012] In the mast height lifting preset mechanism of the forward-moving forklift, the fork lifting preset assembly comprises a fork height preset device arranged on the fork lifting preset plate, the fork height preset device is internally provided with a second pulley with an encoder and a second proximity switch, and the fork lifting fixing plate and the fork lifting mounting plate are provided with a second synchronous belt corresponding to the second pulley.

[0013] In the mast height lifting preset mechanism of the forward-moving forklift, one end of the second synchronous belt is connected with the fork lifting fixing plate through a second upper connecting piece, and the other end is connected with the fork lifting mounting plate through a second lower connecting piece. The fork height preset device is connected with the fork lifting preset plate, and when the fork connecting seat moves, the fork height preset device moves along the length direction of the second synchronous belt, and the second synchronous belt is in a static state. The second pulley starts to rotate through the second synchronous belt and transmits the rotation data to the second proximity switch, and the second proximity switch further transmits the data to the control sensor, and the control sensor controls the operation of the fork hydraulic lifting rod.

[0014] Compared with the prior art, the mast height lifting preset mechanism has the following advantages:

[0015] 1. The device controls the lifting height of the mast body through the mast lifting preset assembly, and controls the lifting height of the fork connecting seat through the fork lifting preset assembly, so that the operation height can be quickly positioned, manual debugging is not needed, the preparation time is greatly shortened, and the work efficiency is improved.

[0016] 2. The device can improve the operation accuracy by using the lifting preset function, avoid collision risks, maintain a safe distance and realize accurate butt joint in the operation process, and thus human errors are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model.

[0018] Figure 2 is a structural schematic view of the mast body in the utility model.

[0019] Figure 3 is a structural schematic view of another view of the mast body in the utility model.

[0020] Figure 4 is the utility model Figure 2 The structure enlarged view of A in the middle.

[0021] Figure 5 is the utility model Figure 2 The structure enlarged view of B in the middle.

[0022] Figure 6 is the utility model Figure 3 The structure enlarged view of C in the middle.

[0023] Figure 7 is the utility model Figure 3 The structure enlarged view of D in the middle.

[0024] In the figure: car body 1, door frame fixed seat 11, door frame body 2, fork piece connecting seat 3, fork piece lifting preset plate 31, fixed door frame 4, movable door frame 5, door frame lifting installation part 51, door frame height preset installation part 52, door frame lifting fixed plate 53, door frame hydraulic lifting rod 54, balance wheel 55, balance chain 56, balance block 57, door frame height preset plate 58, first synchronous belt 59, first upper connecting piece 591, first lower connecting piece 592, fork piece door frame 6, fork piece lifting fixed plate 61, fork piece lifting installation plate 62, fork piece hydraulic lifting rod 63, chain wheel group 64, connecting chain 65, second synchronous belt 66, second upper connecting piece 67, second lower connecting piece 68, fork piece lifting preset assembly 7, fork piece height preset device 71, second pulley 72, second proximity switch 73, door frame lifting preset assembly 8, door frame height preset device 81, first pulley 82, first proximity switch 83. Specific implementation

[0025] The utility model will be made further detailed explanation in combination with the specific implementation and the attached drawing.

[0026] As Figures 1-7As shown, a mast height lifting preset mechanism of a forward-moving forklift truck comprises mast fixing seats 11 arranged at both ends of one side of a vehicle body 1, a mast body 2 arranged between the mast fixing seats 11, a fork connecting seat 3 arranged in the mast body 2, fixed masts 4 arranged at both sides of the mast body 2 and fixedly connected with the mast fixing seats 11, movable masts 5 arranged at one side of the fixed masts 4 away from the mast fixing seats 11, fork masts 6 arranged at one side of the movable masts 5 away from the fixed masts 4, the fork connecting seat 3 movably arranged between the fork masts 6, a fork lifting preset assembly 7 arranged between the fork connecting seat 3 and the fork masts 6 and used for controlling the lifting height of the fork connecting seat 3, and a mast lifting preset assembly 8 arranged between the fixed masts 4 and the movable masts 5 and used for controlling the lifting height of the movable masts 5. The lifting height of the fork connecting seat 3 is controlled by the fork lifting preset assembly 7, and the lifting height of the movable masts 5 is controlled by the mast lifting preset assembly 8. In this way, the operator can input preset values in advance, and the movable masts 5 and the fork connecting seat 3 will automatically lift to the specified height, improving the work efficiency. Meanwhile, the preset function can quickly adjust the lifting height in various working scenes, and the lifting can be guaranteed to reach the specified height, realizing accurate docking and improving the operation accuracy.

[0027] In combination Figure 2 and Figure 3 As shown, the movable masts 5 are provided with mast lifting installation parts 51 at one side of one end away from the mast fixing seats 11, and the mast lifting installation parts 51 are provided with mast height preset installation parts 52 connected with the fixed masts 4 at one side away from the movable masts 5. The mast lifting installation parts 51 are used for the installation of the lifting function of the movable masts 5, and the mast height preset installation parts 52 are used for the installation of the height preset function of the movable masts 5.

[0028] In combination

[0029] Specifically, the mast lifting installation parts 51 are provided with balance wheels 55 at both ends of the inner sides, the balance wheels 55 are provided with balance chains 56, and the balance chains 56 are provided with balance blocks 57 at one end close to the mast fixing seats 11. The balance wheels 55 play a role in maintaining balance when the movable masts 5 are lifted, and offset the unbalanced force caused by factors such as changes in the center of gravity and external forces during operation, so that the mast maintains a stable running state.

[0030] In combination Figure 4 andFigure 6 As shown, the gantry lifting preset assembly 8 comprises a gantry height preset device 81 arranged on the gantry height preset mounting portion 52, the gantry height preset device 81 is internally provided with a first pulley 82 with an encoder and a first proximity switch 83, the movable gantry 5 is provided with a gantry height preset plate 58 between the end close to the gantry fixed seat 11, and the gantry height preset plate 58 is provided with a first synchronous belt 59 corresponding to the first pulley 82 between the gantry lifting mounting portion 51.

[0031] As shown, Figure 2 The first synchronous belt 59 is connected to the gantry lifting mounting portion 51 through a first upper connecting piece 591 at one end, and connected to the gantry height preset plate 58 through a first lower connecting piece 592 at the other end. When the movable gantry 5 operates, the first synchronous belt 59 moves along, while the gantry height preset device 81 is in a stationary state, the first synchronous belt 59 is connected to the first pulley 82, the first pulley 82 rotates under the drive of the first synchronous belt 59, at the same time, the first pulley 82 transmits the rotation data to the first proximity switch 83, and the first proximity switch 83 transmits the data to the control sensor, and the control sensor controls the operation of the gantry hydraulic lifting rod 54.

[0032] As shown in Figure 2 and Figure 3 The fork lifting preset assembly 7 comprises a fork height preset device 71 arranged on the fork lifting preset plate 31, the fork height preset device 71 is internally provided with a second pulley 72 with an encoder and a second proximity switch 73, and the fork lifting fixed plate 61 and the fork lifting mounting plate 62 are provided with a second synchronous belt 66 corresponding to the second pulley 72.

[0033] The fork lifting mounting plate 62 is provided with a fork hydraulic lifting rod 63 in the middle, the fork hydraulic lifting rod 63 is provided with a chain wheel set 64 at the end away from the fork lifting mounting plate 62, a plurality of connecting chains 65 are wound on the chain wheel set 64, and the lower end of the connecting chain 65 is fixedly connected with the fork lifting preset plate 31. The fork hydraulic lifting rod 63 is connected with the fork lifting preset plate 31 through the connecting chain 65, and drives the fork connecting seat 3 to lift.

[0034] As shown in Figure 5 and Figure 7 The fork lifting preset assembly 7 comprises a fork height preset device 71 arranged on the fork lifting preset plate 31, the fork height preset device 71 is internally provided with a second pulley 72 with an encoder and a second proximity switch 73, and the fork lifting fixed plate 61 and the fork lifting mounting plate 62 are provided with a second synchronous belt 66 corresponding to the second pulley 72.

[0035] As shown, Figure 3As shown, one end of the second synchronous belt 66 is connected with the fork lifting fixing plate 61 through the second upper connecting piece 67, and the other end is connected with the fork lifting mounting plate 62 through the second lower connecting piece 68. The fork height preset device 71 is connected with the fork lifting preset plate 31, and when the fork connecting seat 3 moves, the fork height preset device 71 moves along the length direction of the second synchronous belt 66, while the second synchronous belt 66 is in a static state. The second belt wheel 72 starts to rotate through the second synchronous belt 66 and transmits the rotation data to the second proximity switch 73, and the second proximity switch 73 transmits the data to the control sensor, and the control sensor controls the operation of the fork hydraulic lifting rod 63.

[0036] The principle of the embodiment is that:

[0037] The gantry hydraulic lifting rod 54 and the fork hydraulic lifting rod 63 are connected with the control sensor. The gantry hydraulic lifting rod 54 controls the lifting action of the movable gantry 5. The two ends of the first synchronous belt 59 are connected with the gantry height preset plate 58 and the movable gantry 5 through the gantry lifting mounting part 51. The first synchronous belt 59 is connected with the gantry height preset device 81, which is fixed on the gantry height preset mounting part 52. When the movable gantry 5 lifts, the first synchronous belt 59 moves, and the first synchronous belt 59 drives the first belt wheel 82 to rotate. The first belt wheel 82 transmits the rotation data to the first proximity switch 83. The first proximity switch 83 controls the operation of the gantry hydraulic lifting rod 54 through the preset height through the control sensor, so as to control the lifting height of the movable gantry 5. The fork hydraulic lifting rod 63 controls the lifting action of the fork connecting seat 3. The two ends of the second synchronous belt 66 are connected with the fork lifting fixing plate 61 and the fork gantry 6 through the fork lifting mounting plate 62. The fork height preset device 71 is installed on the fork lifting preset plate 31 of the fork connecting seat 3, and is connected with the second synchronous belt 66. When the fork connecting seat 3 lifts, the fork height preset device 71 moves along the length direction of the second synchronous belt 66. The second belt wheel 72 starts to rotate through the second synchronous belt 66, and the second belt wheel 71 transmits the rotation data to the second proximity switch 73. The second proximity switch 73 controls the operation of the fork hydraulic lifting rod 63 through the preset height through the control sensor, so as to control the lifting height of the fork connecting seat 3.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0039] Although the terms of the vehicle body 1, the portal fixed seat 11, the portal body 2, the fork connecting seat 3, the fork lifting preset plate 31, the fixed portal 4, the movable portal 5, the portal lifting installation part 51, the portal height preset installation part 52, the portal lifting fixed plate 53, the portal hydraulic lifting rod 54, the balance wheel 55, the balance chain 56, the balance block 57, the portal height preset plate 58, the first synchronous belt 59, the first upper connecting sheet 591, the first lower connecting sheet 592, the fork portal 6, the fork lifting fixed plate 61, the fork lifting installation plate 62, the fork hydraulic lifting rod 63, the chain wheel set 64, the connecting chain 65, the second synchronous belt 66, the second upper connecting sheet 67, the second lower connecting sheet 68, the fork lifting preset assembly 7, the fork height preset device 71, the second belt wheel 72, the second proximity switch 73, the portal lifting preset assembly 8, the portal height preset device 81, the first belt wheel 82, the first proximity switch 83 and the like are used more in the text, but the possibility of using other terms is not excluded. Using these terms is only to facilitate the description and explanation of the essence of the utility model; it is contrary to the spirit of the utility model to interpret them as any kind of additional limitation.

Claims

1. A mast height lifting preset mechanism of a forward-moving forklift, comprising mast fixing seats (11) arranged at both ends of one side of a vehicle body (1), a mast body (2) arranged between the mast fixing seats (11), and a fork connecting seat (3) arranged in the mast body (2), characterized in that, The door frame body (2) is provided with a fixed door frame (4) fixedly connected with the door frame fixed base (11) on both sides, the fixed door frame (4) is provided with a movable door frame (5) away from the door frame fixed base (11), the movable door frame (5) is provided with a fork door frame (6) away from the fixed door frame (4), the fork connecting base (3) is movably arranged between the fork door frame (6), the fork connecting base (3) and the fork door frame (6) are provided with a fork lifting preset assembly (7) for controlling the lifting height of the fork connecting base (3), and the fixed door frame (4) and the movable door frame (5) are provided with a door frame lifting preset assembly (8) for controlling the lifting height of the movable door frame (5).

2. The mast height preset mechanism of a forward moving fork truck according to claim 1, wherein The movable door frame (5) is provided with a door frame lifting mounting portion (51) on one side of one end away from the door frame fixed base (11), and the door frame lifting mounting portion (51) is provided with a door frame height preset mounting portion (52) connected with the fixed door frame (4) on the side away from the movable door frame (5).

3. The mast height preset mechanism of a forward moving fork truck according to claim 2, wherein The movable door frame (5) is provided with a door frame lifting fixing plate (53) corresponding to the door frame lifting mounting portion (51) on one side of one end away from the door frame lifting mounting portion (51), and the door frame lifting mounting portion (51) and the door frame lifting fixing plate (53) are provided with door frame hydraulic lifting rods (54) on both sides.

4. The front moving type forklift truck's mast height preset mechanism according to claim 3, characterized in that, The door frame lifting mounting portion (51) is provided with balance wheels (55) on the inner sides of both ends, the balance wheels (55) are provided with balance chains (56), and the balance chains (56) are provided with balance blocks (57) on one end close to the door frame fixed base (11).

5. The mast height preset mechanism of a forward moving fork truck according to claim 2 or 3 or 4, characterized in that, The door frame lifting preset assembly (8) comprises a door frame height preset device (81) arranged on the door frame height preset mounting portion (52), the door frame height preset device (81) is provided with a first pulley (82) with an encoder and a first proximity switch (83) in the door frame height preset device (81), the movable door frame (5) is provided with a door frame height preset plate (58) between one end close to the door frame fixed base (11), and the door frame height preset plate (58) and the door frame lifting mounting portion (51) are provided with a first synchronous belt (59) corresponding to the first pulley (82).

6. The front moving type forklift truck's mast height preset mechanism according to claim 5, characterized in that, One end of the first synchronous belt (59) is connected with the door frame lifting mounting portion (51) through a first upper connecting sheet (591), and the other end is connected with the door frame height preset plate (58) through a first lower connecting sheet (592).

7. The pre-set mechanism for height adjustment of the mast of a reach truck according to claim 1, characterized in that The fork connecting base (3) is provided with a fork lifting preset plate (31) between the fork door frame (6), the fork door frame (6) is provided with a fork lifting fixing plate (61) between one end away from the door frame fixed base (11), and the fork door frame (6) is provided with a fork lifting mounting plate (62) between one end close to the door frame fixed base (11).

8. The front moving type forklift truck's mast height preset mechanism according to claim 7, characterized in that, The fork lifting installation plate (62) is provided with a fork hydraulic lifting rod (63) in the middle, one end of the fork hydraulic lifting rod (63) is provided with a chain wheel set (64) away from the fork lifting installation plate (62), a plurality of connecting chains (65) are wound on the chain wheel set (64), and the lower end of the connecting chain (65) is fixedly connected with the fork lifting preset plate (31).

9. The mast height preset mechanism of a forward moving fork truck according to claim 7, wherein The fork lifting preset assembly (7) comprises a fork height preset device (71) arranged on the fork lifting preset plate (31), the fork height preset device (71) is internally provided with a second belt wheel (72) with an encoder and a second proximity switch (73), and the fork lifting fixing plate (61) and the fork lifting installation plate (62) are provided with a second synchronous belt (66) corresponding to the second belt wheel (72).

10. The pre-set mechanism for height adjustment of the mast of a reach truck according to claim 9, characterized in that One end of the second synchronous belt (66) is connected with the fork lifting fixing plate (61) through a second upper connecting piece (67), and the other end is connected with the fork lifting installation plate (62) through a second lower connecting piece (68).

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