CN112677086B - Electric fork-lift triple-linkage machine preassembling and auxiliary mounting tool trolley - Google Patents

Abstract

The invention discloses a tooling trolley for preassembling and assisting installation of an electric forklift triple coupler, which comprises a moving trolley, wherein a triple coupler positioning tool and a rear axle positioning tool are arranged on the moving trolley, the triple coupler positioning tool comprises an adjusting base, a supporting seat and a second guide rail are arranged on the adjusting base, a first lifting driving device is arranged on the supporting seat, a lifting platform is connected onto the first lifting driving device, a front axle positioning plate is arranged on the lifting platform, a second sliding seat and a third sliding seat are slidably connected onto the second guide rail, a second lifting driving device is arranged on the second sliding seat, and a gearbox supporting positioning plate is connected onto the second lifting driving device; and a third lifting driving device is arranged on the third sliding seat, and a motor supporting positioning plate is connected to the third lifting driving device. The invention can adjust the distance between the front axle positioning plate, the gearbox supporting positioning plate and the motor supporting positioning plate according to actual needs, thereby being suitable for various types of triple machines.

Description

Electric fork-lift triple-linkage machine preassembling and auxiliary mounting tool trolley

Technical Field

The invention relates to the technical field of electric forklift assembly, in particular to a tooling trolley for preassembling and assisting in installation of an electric forklift triple coupler.

Background

The electric forklift is stable and noiseless when in operation, does not discharge waste gas, does not pollute air, is easy to overhaul, is simple to operate, has lower operating cost and longer service life of the whole forklift, and becomes a preferred forklift product in most countries. Meanwhile, with the increasingly strong environmental awareness of people, the national energy conservation and emission reduction promotion is also increasing, the national industry policy guides and supports the manufacturing and consumption of the forklift to be gradually changed from the internal combustion forklift to the electric forklift, and the demand of the electric forklift is promoted year by year.

The triple machine and the rear axle are two important parts of the electric forklift, and the triple machine provides power for the electric forklift. As shown in fig. 12, the triple tandem engine is composed of a front axle 1, a gearbox 2 and a driving motor 3, and the front axle 97, the gearbox 98 and the driving motor 99 are arranged in a T shape. The assembly among the triple machine, the rear axle and the vehicle body is usually completed in the same assembly process. During assembly, a tooling trolley is needed. The tooling trolley comprises a moving trolley, a triple machine positioning tooling and a rear axle positioning tooling are arranged on the moving trolley, the triple machine forming positioning tooling is used for positioning the triple machine, and the rear axle positioning tooling is used for positioning the rear axle. During assembly, the triple machine is placed on the triple machine positioning tool, the rear axle is placed on the rear axle assembly positioning tool, the automobile body is hoisted to the positions above the triple machine and the rear axle, the position of the automobile body is adjusted to enable the automobile body to be in butt joint with the triple machine and the rear axle, and then the triple machine and the rear axle are fixed on the automobile body through bolts, so that the assembly of the triple machine and the rear axle is completed.

However, because the distance between the front axle, the gearbox and the driving motor of the three-coupling machine with different models is different, the existing three-coupling machine positioning tool is usually designed according to the three-coupling machine with a certain specific model, and one three-coupling machine positioning tool can only be used for three-coupling machines with one model, so that the universality is poor.

Disclosure of Invention

The invention aims to solve the problem of poor universality of an existing triple machine positioning tool, provides a tool trolley for preassembling and auxiliary mounting of an electric forklift triple machine, and can effectively solve the problem.

The purpose of the invention is realized by the following technical scheme: a tooling trolley for preassembling and assisting installation of an electric forklift triple coupler comprises a moving trolley, wherein a triple coupler positioning tool and a rear axle positioning tool are arranged on the moving trolley, the triple coupler positioning tool comprises an adjusting base, a supporting seat and a second guide rail are arranged on the adjusting base, a first lifting driving device is arranged on the supporting seat, a lifting platform is connected onto the first lifting driving device, a front axle positioning plate is arranged on the lifting platform, a second sliding seat and a third sliding seat are slidably connected onto the second guide rail, a second lifting driving device is arranged on the second sliding seat, and a gearbox supporting positioning plate is connected onto the second lifting driving device; a third lifting driving device is arranged on the third sliding seat, and a motor supporting positioning plate is connected to the third lifting driving device; the rear axle positioning tool comprises a slide rail arranged on the moving trolley, a sliding adjusting seat is connected onto the slide rail in a sliding mode, a second sliding locking device is arranged between the sliding adjusting seat and the slide rail, a fourth lifting driving device is arranged on the sliding adjusting seat, and a rear axle supporting and positioning plate is arranged on the fourth lifting driving device.

According to the invention, the front axle positioning plate is used for positioning a front axle, the gearbox supporting positioning plate is used for supporting and positioning the gearbox, and the motor supporting positioning plate is used for supporting and positioning the motor. The front axle positioning plate can be driven by the first lifting driving device to lift, the gearbox supporting positioning plate can be driven by the second lifting driving device to lift, and the motor supporting positioning plate can be driven by the third lifting driving device to lift. The rear axle supporting and positioning plate is used for supporting and positioning the rear axle, and the rear axle supporting and positioning plate can move up and down under the driving of the fourth lifting driving device. The steps of the invention during assembly are as follows: 1) the movable trolley moves to a designated station under the control of the control equipment; 2) hoisting a triple machine above a triple machine positioning tool, adjusting the posture of the triple machine to place a front axle on a front axle positioning plate, then simultaneously ascending a motor supporting positioning plate and a gearbox supporting positioning plate and respectively supporting the lower ends of a driving motor and a gearbox to completely place the triple machine on the triple machine positioning tool, adjusting the heights of the gearbox supporting positioning plate and the motor supporting positioning plate through a second lifting driving device and a third lifting driving device, leveling the triple machine and completing the preassembling of the triple machine; 4) placing the rear axle on a rear axle positioning tool to complete the preassembly of the rear axle; 5) then the forklift body is hoisted to the upper part of the triple machine and the rear axle, and the triple machine and the rear axle are assembled on the forklift body, thereby completing the whole assembly process. In the assembling process, the front axle positioning plate, the gearbox supporting positioning plate and the motor supporting positioning plate can ascend and descend simultaneously, so that the triple machine can be connected with a forklift body conveniently due to the height of the triple machine. In the invention, the second sliding seat and the third sliding seat can be adjusted in a sliding manner along the second guide rail, so that the distances among the front axle positioning plate, the gearbox supporting positioning plate and the motor supporting positioning plate can be adjusted according to actual needs, and the three-linkage mechanism can be suitable for three-linkage machines of various models.

Preferably, the second sliding seat is provided with a second motor, the second motor is connected with a gear, the adjusting base is provided with a fixed rack parallel to the second guide rail, and the gear is meshed with the fixed rack. The gear is driven to rotate through the motor, and the second sliding seat is driven to move along the second guide rail through the matching of the gear and the fixed rack.

Preferably, a first slide locking device is arranged between the third slide seat and the second guide rail. And after the third sliding seat is adjusted to a proper position, the third sliding seat is locked by the first sliding locking device and is fixed.

Preferably, the lifting platform is rotatably connected with a first screw rod, one end of the first screw rod is connected with a first motor, two sides of the first screw rod are respectively provided with a first thread section and a second thread section, and the rotating directions of the first thread section and the second thread section are opposite; a first guide rail parallel to the first screw rod is arranged on the lifting platform, two first sliding seats are connected on the first guide rail in a sliding manner, one first sliding seat is in threaded fit with a first threaded section on the first screw rod, and the other first sliding seat is in threaded fit with a second threaded section on the first screw rod; the front axle positioning plates are respectively arranged on the two first sliding seats. One of the first sliding seats is provided with a first threaded hole matched with the first threaded section, and the other first sliding seat is provided with a second threaded hole matched with the second threaded section. The first screw rod is driven to rotate by the first motor, and when the first screw rod rotates, the two first sliding seats are driven to move towards opposite directions, so that the distance between the two front axle positioning plates can be adjusted.

Preferably, the fourth lifting driving device comprises stand columns, a third motor and a belt, wherein the stand columns are respectively arranged on two sides of the sliding adjusting seat, a third lead screw is rotatably connected to each stand column, the third lead screw is arranged in the vertical direction, the lower end of the third lead screw is connected with a first belt pulley, a lifting plate is arranged in each stand column, a second lead screw nut connected with the third lead screw is arranged on each lifting plate, a vertical lifting rod is arranged on each lifting plate, the upper end of each lifting rod is connected with a lifting seat, and the rear axle supporting and positioning plate is arranged on each lifting seat; the third motor sets up between two stands, is connected with the second belt pulley on the third motor, links to each other through the belt between first belt pulley and the second belt pulley. The motor drives the second belt pulley to rotate, the second belt pulley drives the two first belt pulleys to synchronously rotate through the belt when rotating, the first belt pulley drives the third screw rod to rotate when rotating, the lifting plate is driven to lift and move when rotating, and the lifting plate drives the lifting seat and the rear axle supporting positioning plate to lift and move.

Preferably, the adjusting base comprises a lower layer plate, a middle layer plate and an upper layer plate, a rotary bearing is connected between the lower layer plate and the middle layer plate, and a rotary locking device is arranged between the lower layer plate and the middle layer plate; the middle layer plate is provided with a third guide rail, and the upper layer plate is connected to the third guide rail in a sliding manner; a fixed block is arranged on the middle layer plate, a second screw rod is rotatably connected to the upper part of the fixed block, the second screw rod is parallel to the third guide rail, and a hand wheel is arranged at one end of the second screw rod; a first screw rod nut is arranged on the upper plate, and the second screw rod is connected with the first screw rod nut. The supporting seat and the second guide rail are fixedly arranged on the upper plate. The horizontal movement adjustment of the upper plate can be realized by rotating the hand wheel; through the relative rotation between well plywood and the lower floor board, can realize the horizontal angle of upper strata board and adjust, after well plywood rotated suitable angle, through rotatory locking device with well plywood locking, make it immovable.

Preferably, the two sides of the lower end of the middle layer plate are respectively provided with an arc-shaped roller mounting block, a roller is rotatably connected onto the roller mounting block, and the roller is in rolling contact with the lower layer plate.

Preferably, the rotary locking device comprises a locking ring arranged at the lower end of the middle layer plate and a fixed seat arranged on the lower layer plate, the locking ring is positioned on the outer side of the slewing bearing, and an annular groove is formed in the outer annular surface of the locking ring; the fixed seat is positioned on one side of the locking ring, and a push rod is connected to the fixed seat in a sliding manner; a groove is formed in the fixed seat, a locking control rod for controlling the push rod to move is connected to the fixed seat, and the lower end of the locking control rod is rotatably connected to the side wall of the groove; a sliding groove is formed in the locking control rod, a fixed shaft is arranged at one end, close to the locking control rod, of the push rod, and the fixed shaft is connected in the sliding groove in a sliding mode; a locking head corresponding to the annular groove is arranged at one end, close to the locking ring, of the push rod, a first piston cavity in the horizontal direction and a second piston cavity in the vertical direction are arranged in the locking head, the first piston cavity is communicated with the second piston cavity, a first piston is arranged in the first piston cavity, second pistons are arranged at the upper end and the lower end of the second piston cavity respectively, a first spring is connected between the two second pistons, a first piston rod is connected onto the first piston, a first pressing plate is connected onto the first piston rod, and the first pressing plate is opposite to the bottom surface of the annular groove; a second piston rod is connected to the second piston, a second pressing plate is connected to the second piston rod, and the second pressing plate is respectively opposite to the upper surface and the lower surface of the annular groove; a closed first oil cavity is formed between the first piston and the second piston, a first oil duct is arranged on the locking head, one end of the first oil duct is communicated with the first oil cavity, and the other end of the first oil duct is connected with a first connecting pipe; a second cylinder body is arranged on the push rod, a fourth piston is connected in the second cylinder body, a pressure rod is connected on the fourth piston, a third oil cavity is formed between the fourth piston and the lower end in the second cylinder body, a second connecting pipe is connected on the second cylinder body, and one end of the second connecting pipe is communicated with the third oil cavity; a first connecting branch pipe and a second connecting branch pipe are connected between the first connecting pipe and the second connecting pipe, one end of the first connecting branch pipe and one end of the second connecting branch pipe are simultaneously connected with one end of the first connecting pipe, which is far away from the first oil duct, and the other end of the first connecting branch pipe and the other end of the second connecting branch pipe are simultaneously connected with one end of the second connecting pipe, which is far away from the third oil chamber; the first connecting branch pipe is provided with a manual valve, and the second connecting branch pipe is provided with a one-way valve. The first oil cavity is filled with hydraulic oil, and the second spring is a tension spring. After the middle-layer plate is adjusted to a proper angle, the locking control rod is pulled to be in a vertical state, the locking control rod can push the push rod to move forwards, and when the push rod moves forwards, the locking head extends into the annular groove and pushes the locking ring tightly, so that the locking ring is locked and fixed. In the locking process, the first pressing plate tightly presses the bottom surface of the annular groove, the first piston can move for a certain distance in the direction of the second piston cavity, at the moment, the two second pistons move towards the upper end and the lower end respectively under the action of oil pressure, so that the two second pressing plates tightly press the upper surface and the lower surface of the annular groove respectively, the pressing force in three directions is formed between the locking head and the annular groove, and the locking effect of the locking ring is greatly improved. When the locking ring needs to be loosened, the manual valve is firstly opened, at the moment, the oil pressure in the first oil cavity is higher, a part of hydraulic oil in the first oil cavity can enter the third oil cavity through the first oil duct, the first connecting pipe, the first connecting branch pipe and the second connecting pipe in sequence to play a role in pressure relief, the third oil cavity plays a role in temporarily storing the hydraulic oil, after the pressure relief is finished, the manual valve is closed, after the pressure relief is finished, due to the flowing-out of the hydraulic oil, the two first pistons are drawn close to each other under the pulling of the first spring, so that the two second pressing plates are separated from the upper surface and the lower surface of the annular groove, then the locking control rod is pulled reversely, so that the locking head is completely separated from the locking ring, the locking ring is loosened, at the moment, the pressing rod is pressed downwards, and the hydraulic oil in the third oil cavity flows back to the first oil cavity again through the second connecting pipe, the second connecting branch pipe and the first connecting pipe. When the hydraulic oil flows into the first oil chamber from the third oil chamber, the one-way valve is switched on, and when the hydraulic oil flows into the first oil chamber from the third oil chamber, the one-way valve is switched off; in this process, the check valve functions to prevent the reverse flow of the hydraulic oil.

Preferably, a first cylinder body is arranged at the bottom of the groove, a third piston is connected in the first cylinder body, a second oil cavity is formed between the third piston and the bottom in the first cylinder body, a third piston rod is connected to the third piston, the third piston rod vertically penetrates through the cylinder body, a third spring is connected between the third piston and the upper end in the first cylinder body, a limiting ring is arranged in the first cylinder body, and the limiting ring is located above the third piston; a clamping groove is formed in the upper end of the third piston rod, and a magnet is arranged at the bottom of the clamping groove; the lower end of the locking control rod is provided with a sliding cavity arranged along the length direction of the locking control rod, a sliding rod is connected in the sliding cavity in a sliding mode and can be attracted by a magnet, and when the locking control rod rotates to a vertical state, the clamping groove is just positioned right below the sliding rod; a second spring is connected between the sliding rod and one end of the sliding cavity; the inner wall of the sliding cavity is provided with a limiting groove, the side surface of the sliding rod is provided with a boss, and the boss is positioned in the limiting groove. The second spring is a tension spring. When the locking ring is locked, the locking control rod is pulled to be in a vertical state, in the process, hydraulic oil in the first oil cavity flows into the second oil cavity to push the third piston and the third piston rod to move upwards to the highest position, the magnet in the clamping groove is close to the sliding rod at the moment, the lower end of the sliding rod is sucked into the clamping groove under the attraction of the magnet to lock the locking control rod, so that the locking control rod is kept in the vertical state and cannot be pulled, and the accidental loosening of the locking ring is avoided; when the locking stop ring is released, the manual valve is opened firstly to release pressure of the first oil cavity, at the moment, the third piston moves downwards under the action of the third spring, hydraulic oil in the second oil cavity flows back to the first oil cavity, the third piston rod descends to the initial position, the clamping groove and the magnet also descend to the initial position, along with the separation of the magnet and the sliding rod, the magnetic force of the magnet on the sliding rod is weakened, and finally the sliding rod is separated from the clamping groove and moves to the initial position under the action of the second spring, so that the locking of the locking control rod is released, and the locking control rod can be pulled.

Preferably, the sliding bar is made of iron.

The invention has the beneficial effects that: in the invention, the second sliding seat and the third sliding seat can be adjusted in a sliding manner along the second guide rail, so that the distances among the front axle positioning plate, the gearbox supporting positioning plate and the motor supporting positioning plate can be adjusted according to actual needs, and the three-linkage mechanism can be suitable for three-linkage machines of various models.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a structural schematic diagram of one direction of the triplexer positioning tool.

Fig. 3 is a schematic structural view of the triplet positioning tool in the other direction.

Fig. 4 is a schematic structural diagram of the adjustment base.

Fig. 5 is a side view of the adjustment base.

Fig. 6 is a schematic structural view of the rotation lock device.

Fig. 7 is an enlarged view of a portion a of fig. 6.

Fig. 8 is an enlarged view of a portion B in fig. 6.

Fig. 9 is an enlarged view of the portion C in fig. 6.

Fig. 10 is a schematic structural view of the rear axle positioning tool.

Fig. 11 is an enlarged view of a portion D in fig. 10.

Fig. 12 is a schematic structural view of a conventional triplet machine.

Fig. 13 is a schematic view of the present invention in use.

In the figure: 1. the device comprises a movable trolley, a sliding rail, a movable trolley, a sliding adjusting seat, a movable trolley, a sliding adjusting base, a sliding adjusting base, a sliding adjusting base, a sliding base, A hand wheel, 36, a rotary bearing, 37, a locking ring, 38, an annular groove, 39, a fixed seat, 40, a push rod, 41, a fixed shaft, 42, a locking control rod, 43, a sliding groove, 44, a first connecting pipe, 45, a first three-way joint, 46, a first connecting branch pipe, 47, a second connecting branch pipe, 48, a one-way valve, 49, a manual valve, 50, a second three-way joint, 51, a second connecting pipe, 52, a locking head, 53, a first piston cavity, 54, a second piston cavity, 55, a first piston, 56, a first piston rod, 57, a first pressure plate, 58, a second piston, 59, a second piston rod, 60, a second pressure plate, 61, a first spring, 62, a first oil channel, 63, a second oil channel, 64, a third connecting pipe, 65, a groove, 66, a sliding cavity, 67, a sliding rod, 68, a second spring, 69, a limiting groove, 70, a boss, 71, a first cylinder body, 72, a third piston, 73. the hydraulic brake device comprises a third piston rod, 74, a clamping groove, 75, a magnet, 76, a third spring, 77, a limiting ring, 78, a second oil cavity, 79, a second cylinder body, 80, a fourth piston, 81, a pressure rod, 82, a third oil cavity, 83, a lower end plate, 84, an upper end plate, 85, a side plate, 86, a first belt pulley, 87, a third screw rod, 88, a lifting plate, 89, a lifting rod, 90, a lifting seat, 91, a rear axle supporting and positioning plate, 92, a belt, 93, a third motor, 94, a second belt pulley, 95, an inducer, 96, a second sliding locking device, 97, a front axle, 98, a gearbox, 99, a driving motor, 100 and a rear axle.

Detailed Description

The invention is further described in the following by means of embodiments in conjunction with the accompanying drawings.

Example 1:

as shown in fig. 1 to 13, a tooling trolley for preassembling and auxiliary mounting of a triple machine of an electric forklift comprises a moving trolley 1, wherein the moving trolley 1 is in the prior art. A triple play machine positioning tool and a rear axle positioning tool are arranged on the movable trolley 1.

The triple machine positioning tool comprises an adjusting base 4. The adjustment base 4 comprises a lower plate 26, a middle plate 27 and an upper plate 28, the lower plate 26, the middle plate 27 and the upper plate 28 being parallel to each other. A rotary bearing 36 is connected between the lower plate 26 and the middle plate 27, and the lower plate 26 and the middle plate 27 can rotate mutually. A rotation locking device is arranged between the lower layer plate 26 and the middle layer plate 27. The middle plate 27 is provided with a third rail 31, and the upper plate 28 is slidably connected to the third rail 31. A fixed block 32 is arranged on the middle layer plate, a second screw rod 33 is rotatably connected to the upper part of the fixed block 32, the second screw rod 33 is parallel to the third guide rail 31, and a hand wheel 35 is arranged at one end of the second screw rod 33. The upper plate 28 is provided with a first lead screw nut 34, and the second lead screw 33 is connected with the first lead screw nut 34. Arc-shaped roller mounting blocks 29 are respectively arranged on two sides of the lower end of the middle layer plate 27, rollers 30 are rotatably connected to the roller mounting blocks 29, and the rollers 30 are in rolling contact with the lower layer plate 26. The horizontal movement adjustment of the upper plate can be realized by rotating the hand wheel; through the relative rotation between well plywood and the lower floor board, can realize the horizontal angle of upper strata board and adjust, after well plywood rotated suitable angle, through rotatory locking device with well plywood locking, make it immovable.

The rotary locking device comprises a locking ring 37 arranged at the lower end of the middle layer plate 27 and a fixed seat 39 arranged on the lower layer plate 26, wherein the locking ring 37 is positioned on the outer side of the slewing bearing 36, and the locking ring 37 is annular. An annular groove 38 is provided on the outer circumferential surface of the locking ring 37. The fixing seat 39 is located on one side of the locking ring, the fixing seat 39 is connected with a push rod 40 in a sliding mode, and the push rod 40 is arranged along the horizontal direction. Be provided with recess 65 on the fixing base 39, be connected with the locking control lever 42 that is used for controlling push rod 40 to remove on the fixing base 39, the lower extreme of locking control lever 42 rotates to be connected on the lateral wall of recess 65. The lower end of the locking control rod 42 is provided with a rotating shaft, and the side surface of the groove 65 is provided with a shaft hole, and the rotating shaft is rotatably connected to the shaft hole. The locking lever 42 is provided with a slide groove 43, and the slide groove 43 is provided along the longitudinal direction of the locking lever 42. The push rod 40 is provided with a fixed shaft 41 at one end thereof adjacent to the locking control rod 42, and the fixed shaft 41 is slidably coupled in the slide groove 43. One end of the push rod 40 close to the locking ring 37 is provided with a locking head 52 corresponding to the annular groove 38, a first piston cavity 53 in the horizontal direction and a second piston cavity 54 in the vertical direction are arranged in the locking head 52, the first piston cavity 53 is communicated with the second piston cavity 54, and the first piston cavity 53 and the second piston cavity 54 form a T-shaped structure. A first piston 55 is arranged in the first piston cavity 53, second pistons 58 are respectively arranged at the upper end and the lower end of the second piston cavity 54, a first spring 61 is connected between the two second pistons 58, and the first spring 61 is a tension spring. The first piston 55 is connected to a first piston rod 56, the first piston rod 56 is connected to a first pressing plate 57, and the first pressing plate 57 faces the bottom surface of the annular groove 38. The second piston 58 is connected to a second piston rod 59, the second piston rod 59 is connected to a second pressing plate 60, and the second pressing plate 60 faces the upper and lower surfaces of the annular groove 38. A closed first oil chamber is formed between the first piston 55 and the two second pistons 58. The locking head is provided with a first oil channel 62, one end of the first oil channel 62 is communicated with the first oil chamber, and the other end of the first oil channel 62 is connected with the first connecting pipe 44. The push rod 40 is provided with a second cylinder 79, a fourth piston 80 is connected in the second cylinder 79, a pressure rod 81 is connected on the fourth piston 80, a third oil chamber 82 is formed between the fourth piston 80 and the lower end in the second cylinder 79, a second connecting pipe 51 is connected on the second cylinder 79, and one end of the second connecting pipe 51 is communicated with the third oil chamber 82. A first connecting branch pipe 46 and a second connecting branch pipe 47 are connected between the first connecting pipe 44 and the second connecting pipe 51, one ends of the first connecting branch pipe 46 and the second connecting branch pipe 47 are simultaneously connected with one end of the first connecting pipe 44 away from the first oil passage 62, and the other ends of the first connecting branch pipe 46 and the second connecting branch pipe 47 are simultaneously connected with one end of the second connecting pipe 51 away from the third oil chamber 82. The first connecting branch pipe 46, the second connecting branch pipe 47 and the first connecting pipe 44 are connected through a first three-way joint 45, and the first connecting branch pipe 46, the second connecting branch pipe 47 and the second connecting pipe 51 are connected through a second three-way joint 50. The first connecting branch 46 is provided with a manual valve 49, and the second connecting branch 47 is provided with a check valve 48. The first oil chamber is filled with hydraulic oil.

The bottom of the groove 65 is provided with a first cylinder 71, a third piston 72 is connected in the first cylinder 71, a second oil chamber 78 is formed between the third piston 72 and the bottom in the first cylinder 71, a third piston rod 73 is connected on the third piston 72, the third piston rod 73 vertically penetrates through the cylinder 71, and a third spring 76 is connected between the third piston 73 and the upper end in the first cylinder 71. A retainer ring 77 is provided in the first cylinder 71, and the retainer ring 77 is located above the third piston 72. The upper end of the third piston rod 73 is provided with a locking groove 74, and the bottom of the locking groove 44 is provided with a magnet 75. The lower end of the locking control rod 42 is provided with a sliding cavity 66 arranged along the length direction of the locking control rod, a sliding rod 67 is connected in the sliding cavity 66 in a sliding mode, and the sliding rod 67 can be attracted by a magnet 75. The slide rod 67 is made of iron. When the locking control lever 42 is rotated to the vertical state, the notch is located just below the slide lever. A second spring 68 is connected between the sliding rod 67 and one end of the sliding cavity 66, and the second spring 68 is a tension spring. A limiting groove 69 is formed in the inner wall of the sliding cavity 66, a boss 70 is arranged on the side face of the sliding rod 67, and the boss 70 is located in the limiting groove 69.

After the middle-layer plate is adjusted to a proper angle, the locking control rod is pulled to be in a vertical state, the locking control rod can push the push rod to move forwards, and when the push rod moves forwards, the locking head extends into the annular groove and pushes the locking ring tightly, so that the locking ring is locked and fixed. At the in-process of locking, the bottom surface of the tight ring channel in first clamp plate top, at this in-process, first piston can remove certain distance towards the direction in second piston chamber, makes two second pistons remove towards upper and lower both ends respectively under the effect of oil pressure at this moment for two second clamp plates top the upper and lower surface of tight ring channel respectively, has formed the tight power in top of three direction between locking head and the ring channel like this, has improved the locking effect to the locking circle greatly. When the locking ring needs to be loosened, the manual valve is firstly opened, at the moment, the oil pressure in the first oil cavity is higher, a part of hydraulic oil in the first oil cavity can enter the third oil cavity through the first oil duct, the first connecting pipe, the first connecting branch pipe and the second connecting pipe in sequence to play a role in pressure relief, the third oil cavity plays a role in temporarily storing the hydraulic oil, after the pressure relief is finished, the manual valve is closed, after the pressure relief is finished, due to the flowing-out of the hydraulic oil, the two first pistons are drawn close to each other under the pulling of the first spring, so that the two second pressing plates are separated from the upper surface and the lower surface of the annular groove, then the locking control rod is pulled reversely, so that the locking head is completely separated from the locking ring, the locking ring is loosened, at the moment, the pressing rod is pressed downwards, and the hydraulic oil in the third oil cavity flows back to the first oil cavity again through the second connecting pipe, the second connecting branch pipe and the first connecting pipe. When the hydraulic oil flows into the first oil chamber from the third oil chamber, the check valve is turned on, and when the hydraulic oil flows into the first oil chamber from the third oil chamber, the check valve is turned off; in this process, the check valve functions to prevent the reverse flow of the hydraulic oil. When the locking ring is locked, the locking control rod is pulled to be in a vertical state, in the process, hydraulic oil in the first oil cavity flows into the second oil cavity to push the third piston and the third piston rod to move upwards to the highest position, the magnet in the clamping groove is close to the sliding rod at the moment, the lower end of the sliding rod is sucked into the clamping groove under the attraction of the magnet to lock the locking control rod, so that the locking control rod is kept in the vertical state and cannot be pulled, and the accidental loosening of the locking ring is avoided; when the locking ring is unlocked, firstly, the manual valve is opened to release pressure of the first oil cavity, at the moment, the third piston moves downwards under the action of the third spring, hydraulic oil in the second oil cavity flows back to the first oil cavity, the third piston rod descends to the initial position, the clamping groove and the magnet also descend to the initial position, along with the distance between the magnet and the sliding rod, the magnetic force of the magnet on the sliding rod is weakened, finally the sliding rod is separated from the clamping groove and moves to the initial position under the action of the second spring, and therefore the locking of the locking control rod is released, and the locking control rod can be pulled.

The upper plate 28 is provided with a support base 5 and a second guide rail 15. A first lifting driving device 6 is arranged on the supporting seat, and a lifting platform 7 is connected to the first lifting driving device 6. The lifting platform 7 moves up and down under the drive of the first lifting drive device 6. The supporting seat 5 is provided with a guide block 8, the guide block 8 is provided with a guide hole, the lifting platform 7 is provided with a guide rod 9 corresponding to the guide hole, and the guide rod 9 is connected in the guide hole in a sliding manner. The lifting platform 7 is rotatably connected with a first screw rod 13, one end of the first screw rod 13 is connected with a first motor 14, and the first motor 14 is fixed at one end of the lifting platform 7. The two sides of the first screw rod 13 are respectively provided with a first thread section and a second thread section, and the rotating directions of the first thread section and the second thread section are opposite. The lifting platform 7 is provided with a first guide rail 10 parallel to the first screw rod 13, the first guide rail 10 is connected with two first sliding seats in a sliding manner, and the two first sliding seats are respectively positioned on two sides of the first screw rod 13. One of the first sliding seats is provided with a first threaded hole matched with the first threaded section, and the first sliding seat is in threaded fit with the first threaded section on the first screw rod; and the other first sliding seat is in threaded fit with the second threaded section on the first screw rod, and a second threaded hole matched with the second threaded section is formed in the first sliding seat. The two first sliding seats are respectively provided with a front axle positioning plate 12. The front axle positioning plate 12 is used for positioning the front axle 1.

A second sliding seat 16 and a third sliding seat 19 are slidably connected to the second guide rail 15. A second lifting driving device 17 is arranged on the second sliding seat 16, and a gearbox supporting positioning plate 18 is connected to the second lifting driving device 17. The second sliding seat 16 is provided with a second motor 22, the second motor 22 is connected with a gear 23, the upper plate 28 is provided with a fixed rack 24 parallel to the second guide rail 15, and the gear 23 is meshed with the fixed rack 24. The third sliding seat 19 is provided with a third lifting driving device 20, and the third lifting driving device 20 is connected with a motor support positioning plate 21. The first elevation driving device 6, the second elevation driving device 17, and the third elevation driving device 20 are all electric cylinders. A first sliding lock device 25 is arranged between the third sliding seat 19 and the second guide rail 15. The first sliding locking device 25 is a prior art, and its specific structure can be referred to the invention patent with publication number CN 105496046B.

The rear axle positioning tool comprises a slide rail 2 arranged on the movable trolley 1. The sliding rail 2 is connected with a sliding adjusting seat 3 in a sliding way. A second sliding locking device 96 is arranged between the sliding adjusting seat 3 and the sliding rail 2. The second sliding lock device 96 is a prior art, and the specific structure thereof can be found in the invention patent with the publication number CN 105496046B. The sliding adjusting base 3 is provided with a fourth lifting driving device, and the fourth lifting driving device is provided with a rear axle supporting and positioning plate 91. The rear axle support positioning plate 91 is used for supporting and positioning the rear axle 100.

The fourth lifting driving device comprises a vertical column, a third motor 93 and a belt 92. The stand is provided with two, is located the both sides of slide adjusting seat 3 respectively. The column comprises a lower end plate 83 and an upper end plate 84, with side plates 85 connected between the lower end plate 83 and the upper end plate 84. A third screw rod 87 is rotatably connected in the upright column, and the third screw rod 87 is arranged in the vertical direction. The upper and lower ends of the third screw 87 are rotatably connected to the upper end plate 83 and the lower end plate 84, respectively. The lower end of the third screw 87 is connected with a first belt pulley 86, a lifting plate 88 is arranged in the upright column, a second screw nut connected with the third screw 87 is arranged on the lifting plate 88, a vertical lifting rod 89 is arranged on the lifting plate 88, and the lifting rod 89 vertically penetrates through the upper end plate 84. The upper end of the lifting rod 84 is connected with a lifting seat 90, and the rear axle supporting and positioning plate 91 is arranged on the lifting seat 90.

The third motor 93 is disposed between the two columns, and the third motor 93 is a servo motor. The third motor 93 is connected to a second pulley 94, and the first pulley 86 and the second pulley 94 are connected by a belt 92. The slide adjusting base 3 is provided with an inducer 95, and the belt 92 is wound around the inducer 95.

According to the invention, the front axle positioning plate is used for positioning a front axle, the gearbox supporting positioning plate is used for supporting and positioning a gearbox, and the motor supporting positioning plate is used for supporting and positioning a motor. The front axle positioning plate can be driven by the first lifting driving device to lift, the gearbox supporting positioning plate can be driven by the second lifting driving device to lift, and the motor supporting positioning plate can be driven by the third lifting driving device to lift. The rear axle supporting and positioning plate is used for supporting and positioning the rear axle, and the rear axle supporting and positioning plate can move up and down under the driving of the fourth lifting driving device. The steps of the invention during assembly are as follows: 1) the movable trolley moves to a designated station under the control of the control equipment; 2) hoisting a triple machine above a triple machine positioning tool, adjusting the posture of the triple machine to place a front axle on a front axle positioning plate, then simultaneously ascending a motor supporting positioning plate and a gearbox supporting positioning plate and respectively supporting the lower ends of a driving motor and a gearbox to completely place the triple machine on the triple machine positioning tool, adjusting the heights of the gearbox supporting positioning plate and the motor supporting positioning plate through a second lifting driving device and a third lifting driving device, leveling the triple machine and completing the preassembling of the triple machine; 4) placing the rear axle on a rear axle positioning tool to complete the preassembly of the rear axle; 5) then the forklift body is hoisted to the upper part of the triple machine and the rear axle, and the triple machine and the rear axle are assembled on the forklift body, thereby completing the whole assembly process. In the assembling process, the front axle positioning plate, the gearbox supporting positioning plate and the motor supporting positioning plate can ascend and descend simultaneously, so that the triple machine can be connected with a forklift body conveniently due to the height of the triple machine. In the invention, the second sliding seat and the third sliding seat can be adjusted in a sliding manner along the second guide rail, so that the distances among the front axle positioning plate, the gearbox supporting positioning plate and the motor supporting positioning plate can be adjusted according to actual needs, and the three-linkage mechanism can be suitable for three-linkage machines of various models.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (9)

1. The utility model provides an electric fork truck trigeminy machine pre-installation and supplementary installation frock dolly, includes the travelling car, is provided with trigeminy machine location frock and rear axle location frock on the travelling car, its characterized in that: the triple machine positioning tool comprises an adjusting base, wherein a supporting seat and a second guide rail are arranged on the adjusting base, a first lifting driving device is arranged on the supporting seat, a lifting platform is connected onto the first lifting driving device, a front axle positioning plate is arranged on the lifting platform, a second sliding seat and a third sliding seat are connected onto the second guide rail in a sliding manner, a second lifting driving device is arranged on the second sliding seat, and a gearbox supporting positioning plate is connected onto the second lifting driving device; a third lifting driving device is arranged on the third sliding seat, and a motor supporting positioning plate is connected to the third lifting driving device; the rear axle positioning tool comprises a slide rail arranged on the moving trolley, a slide adjusting seat is connected on the slide rail in a sliding manner, a second slide locking device is arranged between the slide adjusting seat and the slide rail, a fourth lifting driving device is arranged on the slide adjusting seat, and a rear axle supporting positioning plate is arranged on the fourth lifting driving device; the adjusting base comprises a lower layer plate, a middle layer plate and an upper layer plate, a rotary bearing is connected between the lower layer plate and the middle layer plate, and a rotary locking device is arranged between the lower layer plate and the middle layer plate; the rotary locking device comprises a locking ring arranged at the lower end of the middle layer plate and a fixed seat arranged on the lower layer plate, the locking ring is positioned on the outer side of the rotary bearing, and an annular groove is formed in the outer annular surface of the locking ring; the fixed seat is positioned on one side of the locking ring, and a push rod is connected to the fixed seat in a sliding manner; a groove is formed in the fixed seat, a locking control rod for controlling the push rod to move is connected to the fixed seat, and the lower end of the locking control rod is rotatably connected to the side wall of the groove; a sliding groove is formed in the locking control rod, a fixed shaft is arranged at one end, close to the locking control rod, of the push rod, and the fixed shaft is connected in the sliding groove in a sliding mode; a locking head corresponding to the annular groove is arranged at one end, close to the locking ring, of the push rod, a first piston cavity in the horizontal direction and a second piston cavity in the vertical direction are arranged in the locking head, the first piston cavity is communicated with the second piston cavity, a first piston is arranged in the first piston cavity, second pistons are arranged at the upper end and the lower end of the second piston cavity respectively, a first spring is connected between the two second pistons, a first piston rod is connected onto the first piston, a first pressing plate is connected onto the first piston rod, and the first pressing plate is opposite to the bottom surface of the annular groove; a second piston rod is connected to the second piston, a second pressing plate is connected to the second piston rod, and the second pressing plate is respectively opposite to the upper surface and the lower surface of the annular groove; a closed first oil cavity is formed between the first piston and the second piston, a first oil duct is arranged on the locking head, one end of the first oil duct is communicated with the first oil cavity, and the other end of the first oil duct is connected with a first connecting pipe; a second cylinder body is arranged on the push rod, a fourth piston is connected in the second cylinder body, a pressure rod is connected on the fourth piston, a third oil cavity is formed between the fourth piston and the lower end in the second cylinder body, a second connecting pipe is connected on the second cylinder body, and one end of the second connecting pipe is communicated with the third oil cavity; a first connecting branch pipe and a second connecting branch pipe are connected between the first connecting pipe and the second connecting pipe, one end of the first connecting branch pipe and one end of the second connecting branch pipe are simultaneously connected with one end of the first connecting pipe, which is far away from the first oil duct, and the other end of the first connecting branch pipe and the other end of the second connecting branch pipe are simultaneously connected with one end of the second connecting pipe, which is far away from the third oil chamber; the first connecting branch pipe is provided with a manual valve, and the second connecting branch pipe is provided with a one-way valve.

2. The tool trolley for preassembling and assisting in mounting of the triple machine of the electric forklift as recited in claim 1, wherein the second sliding seat is provided with a second motor, the second motor is connected with a gear, the adjusting base is provided with a fixed rack parallel to the second guide rail, and the gear is meshed with the fixed rack.

3. The tool trolley for preassembling and assisting in mounting of the triple machine of the electric forklift as claimed in claim 1, wherein a first sliding locking device is arranged between the third sliding seat and the second guide rail.

4. The tool trolley for preassembling and assisting in mounting of the triple machine of the electric forklift as claimed in claim 1, wherein a first screw rod is rotatably connected to the lifting platform, one end of the first screw rod is connected with a first motor, a first thread section and a second thread section are respectively arranged on two sides of the first screw rod, and the rotation directions of the first thread section and the second thread section are opposite; a first guide rail parallel to the first screw rod is arranged on the lifting platform, two first sliding seats are connected on the first guide rail in a sliding manner, one first sliding seat is in threaded fit with a first threaded section on the first screw rod, and the other first sliding seat is in threaded fit with a second threaded section on the first screw rod; the front axle positioning plates are respectively arranged on the two first sliding seats.

5. The preassembly and auxiliary installation tooling trolley of the electric forklift triple triplet as claimed in claim 1, wherein the fourth lifting driving device comprises uprights, a third motor and a belt, which are respectively arranged on two sides of the sliding adjusting seat, each upright is rotatably connected with a third lead screw, the third lead screws are arranged in a vertical direction, the lower ends of the third lead screws are connected with a first belt pulley, a lifting plate is arranged in each upright, a second lead screw nut connected with the third lead screw is arranged on each lifting plate, a vertical lifting rod is arranged on each lifting plate, the upper end of each lifting rod is connected with a lifting seat, and the rear axle supporting and positioning plate is arranged on each lifting seat; the third motor sets up between two stands, is connected with the second belt pulley on the third motor, links to each other through the belt between first belt pulley and the second belt pulley.

6. The preassembly and auxiliary installation tooling trolley of the triple machine of the electric forklift as claimed in claim 1, wherein a third guide rail is arranged on the middle plate, and the upper plate is slidably connected to the third guide rail; a fixed block is arranged on the middle layer plate, a second screw rod is rotatably connected to the upper part of the fixed block, the second screw rod is parallel to the third guide rail, and a hand wheel is arranged at one end of the second screw rod; a first screw rod nut is arranged on the upper plate, and the second screw rod is connected with the first screw rod nut.

7. The preassembly and auxiliary assembly tooling trolley for the triple linkage of the electric forklift as claimed in claim 6, wherein the two sides of the lower end of the middle deck are respectively provided with an arc-shaped roller mounting block, the roller mounting block is rotatably connected with a roller, and the roller is in rolling contact with the lower deck.

8. The preassembly and auxiliary installation tooling trolley of the electric forklift triple coupler as claimed in claim 1, wherein a first cylinder is arranged at the bottom of the groove, a third piston is connected in the first cylinder, a second oil cavity is formed between the third piston and the bottom in the first cylinder, a third piston rod is connected on the third piston, the third piston rod vertically penetrates through the cylinder, a third spring is connected between the third piston and the upper end in the first cylinder, a limit ring is arranged in the first cylinder, and the limit ring is positioned above the third piston; a clamping groove is formed in the upper end of the third piston rod, and a magnet is arranged at the bottom of the clamping groove; the lower end of the locking control rod is provided with a sliding cavity arranged along the length direction of the locking control rod, a sliding rod is connected in the sliding cavity in a sliding mode and can be attracted by a magnet, and when the locking control rod rotates to a vertical state, the clamping groove is just positioned right below the sliding rod; a second spring is connected between the sliding rod and one end of the sliding cavity; the inner wall of the sliding cavity is provided with a limiting groove, the side surface of the sliding rod is provided with a boss, and the boss is positioned in the limiting groove.

9. The preassembly and auxiliary installation tooling cart of claim 8, wherein the slide bar is made of iron.

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