A new type of hydraulic vehicle for industrial transportation

Abstract

The present invention belongs to the field of industrial transportation technology, and specifically relates to a new type of hydraulic vehicle for industrial transportation. In the present invention, a large wheel is connected to a wheel axle, and a small wheel is connected to a connecting rod in three phases; a support is installed on the wheel axle, and a locking retainer ring supports a bearing seat; the wheel axle passes through the middle through hole of the bearing seat, and the bearing seat is connected to the small wheel through connecting rods one, two and three; the hydraulic cylinder is fixed to the support; the piston rod is connected to the top of the trapezoidal connecting piece, and the bottom of the trapezoidal connecting piece is connected to the cart flat plate; the manual pump is fixed to the support by bolts, the manual pump pressure sleeve is connected to the pre-welded part on the piston cylinder by a hinge, and the control rod and the control rod connecting sleeve are fixed to the manual pump pressure sleeve by bolts; the integrated block is welded to the support, and a sequence valve, a two-position four-way manual reversing valve, a safety valve, and a motor oil pipe are assembled thereon. The present invention solves the problem that ordinary manual hydraulic vehicles are difficult to walk on slopes and difficult to brake on slopes, and greatly improves the working efficiency of such industrial transportation tools.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial transportation, and in particular relates to a new hydraulic vehicle for industrial transportation. Background Art

[0002] Manual hydraulic equipment is widely used in the field of industrial transportation. For example, manual hydraulic forklifts are often used to transport heavier items during mechanical maintenance. However, due to the limitations of ordinary manual hydraulic forklifts, manual hydraulic forklifts often have difficulties going up slopes and braking down slopes. These problems are particularly prominent when carrying heavier items, which leads to major safety hazards when the manual hydraulic forklift goes uphill and downhill, threatening the lives of nearby people. Summary of the invention

[0003] The purpose of the present invention is to provide a new type of hydraulic vehicle for industrial transportation, which solves the problem that ordinary manual hydraulic vehicles are difficult to travel on slopes and difficult to brake on down slopes, and greatly improves the working efficiency of such industrial transportation tools.

[0004] The technical solution adopted by the present invention is:

[0005] A new type of hydraulic vehicle for industrial transportation, including a control rod, a control rod connecting sleeve, a manual pump sleeve, a manual pump, a support, a piston rod, a trapezoidal connecting piece, a piston cylinder, a bearing seat, a locking ring, a wheel axle, a large wheel, a connecting rod 1, a connecting rod 2, a cart flat plate, a connecting rod 3, a small wheel, a sequence valve, an integrated block, a two-position four-way manual reversing valve, a motor oil pipe, a small displacement gear motor, a motor support, and a safety valve;

[0006] The big wheel is connected to the wheel axle, the small wheel is connected to the connecting rod three-phase, and the wheels together form the ground support part of the vehicle; the support is installed on the wheel axle, and the locking ring supports the bearing seat; the wheel axle passes through the middle through hole of the bearing seat, and the bearing seat is connected to the small wheel through connecting rods 1, 2 and 3; the piston cylinder is fixed to the support; the piston rod is connected to the upper part of the trapezoidal connecting piece, and the lower part of the trapezoidal connecting piece is connected to the cart flat plate;

[0007] The manual pump is fixed to the support by bolts, the manual pump pressure sleeve is connected to the pre-welded part on the piston cylinder by a hinge, and the control rod together with the control rod connecting sleeve is fixed to the manual pump pressure sleeve by bolts; the integrated block is welded to the support, on which are assembled the sequence valve, the two-position four-way manual reversing valve, the safety valve, the motor oil pipe, and the pipeline connecting the hydraulic pump to the integrated block; the small-displacement gear motor is welded to the motor support, and the motor support is welded to the support, and at the same time, the output shaft of the small-displacement gear motor is connected to the wheel axle.

[0008] The rolling bearing is installed in the bearing seat, and the clearance of the rolling bearing is adjusted by the washer.

[0009] One end of the connecting rod one is connected to the bearing seat through a hinge, the middle part of the connecting rod one is fixed on the trapezoidal connecting piece, the other end of the connecting rod one is connected to the connecting rod two through a hinge, and the connecting rod two and the connecting rod three are connected through a hinge.

[0010] The support is preset with a spring groove, the spring is assembled in the spring groove, and the spring seat is pressed on the spring; the spring is the internal spring of the manual pump, and the spring is limited by the nut at the top end of the pump shaft.

[0011] The integrated block is used to fix the valve, and an oil circuit is designed inside the block.

[0012] The small displacement gear motor is connected to the support through bolts; the opening pressure of the sequence valve is higher than the maximum design pressure of the small displacement gear motor.

[0013] The chains on the hydraulic vehicle lowering handle and the hydraulic vehicle auxiliary walking and braking handle are respectively connected to the stop valve switch and the manual switch of the reversing valve provided by the piston cylinder.

[0014] The manual pump of the hydraulic vehicle has an internal oil tank; the piston cylinder of the hydraulic vehicle has an internal stop valve; and a throttling hole is drilled on the integrated block of the hydraulic vehicle.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention provides a new type of hydraulic vehicle for industrial transportation, which adopts a hydraulic travel circuit design to solve the problem that ordinary manual hydraulic vehicles are difficult to travel on slopes and difficult to brake on slopes;

[0017] (2) The new hydraulic truck for industrial transportation provided by the present invention adopts a hydraulic system braking design, which eliminates the risk of tipping over during the uphill and downhill processes of ordinary manual hydraulic forklifts, thereby ensuring the safety of the equipment or nearby personnel;

[0018] (3) The new hydraulic vehicle for industrial transportation provided by the present invention reduces the workload of manual handling during transportation and improves the efficiency of transportation work;

[0019] (4) The present invention provides a new type of hydraulic vehicle for industrial transportation, in which all actuators are driven by a hydraulic system, and no additional lubrication measures are required, and the system life is long;

[0020] (5) The new hydraulic vehicle for industrial transportation provided by the present invention has a reasonable structural design, most of its components are standard parts, it is easy to operate and maintain, and has low requirements on the skill level of the operator;

[0021] (6) The new hydraulic vehicle for industrial transportation provided by the present invention fully utilizes the original power source without adding other power sources, and is widely applicable to various types of manual transportation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of a new type of hydraulic vehicle for industrial transportation according to the present invention;

[0023] Figure 2 This is a left view of a new type of hydraulic vehicle for industrial transportation according to the present invention;

[0024] Figure 3 This is a hydraulic principle diagram of a new type of hydraulic vehicle for industrial transportation of the present invention;

[0025] In the figure: 1. control rod, 2. control rod connecting sleeve, 3. bolt, 4. manual pump sleeve, 5. nut with spring washer, 6. spring seat, 7. manual pump, 8. spring, 9. support, 10. control rod support, 11. piston rod, 12. trapezoidal connector, 13. piston cylinder, 14. washer, 15. bearing seat, 16. rolling bearing, 17. locking ring, 18. wheel axle, 19. large wheel, 20. connecting rod one, 21. connecting rod two, 22. cart flatbed, 23. connecting rod three, 24. small wheel, 25. sequence valve, 26. integrated block, 27. two-position four-way manual reversing valve, 28. motor oil pipe, 29. oil inlet, 30. oil outlet, 31. small displacement gear motor, 32. motor support, 33. safety valve, 34. hydraulic vehicle lowering handle, 35. hydraulic vehicle auxiliary walking and braking handle. DETAILED DESCRIPTION

[0026] The novel hydraulic vehicle for industrial transportation provided by the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] like Figure 1 , 2 As shown, the present invention provides a new type of hydraulic vehicle for industrial transportation, including a vehicle support part, a vehicle control part, and a hydraulic part; the vehicle support part includes:

[0028] The large wheel 19 is connected to the wheel axle 18, and the small wheel 24 is connected to the connecting rod 3 23, and the wheels together constitute the ground support part of the vehicle;

[0029] The support 9 is installed on the wheel shaft 18 by bolts, and the locking ring 17 supports the bearing seat 15; in order to ensure the smooth rotation of the wheel, the rolling bearing 16 is installed in the bearing seat 15, and the clearance of the rolling bearing 16 is adjusted by the washer 14; the wheel shaft 18 passes through the middle through hole of the bearing seat 15, and the bearing seat 15 is connected to the small wheel 24 through the connecting rod 1 20, the connecting rod 21 and the connecting rod 3 23.

[0030] One end of the connecting rod 20 is connected to the bearing seat 15 through a hinge, the middle part of the connecting rod 20 is fixed on the trapezoidal connecting member 12, the other end of the connecting rod 20 is connected to the connecting rod 21 through a hinge, and the connecting rod 21 is connected to the connecting rod 3 23 through a hinge;

[0031] The piston cylinder 13 is fixed to the support 9 by welding. The piston rod 11 is connected to the upper part of the trapezoidal connecting member 12 by threading, and the lower part of the trapezoidal connecting member 12 is connected to the cart flat plate 22 by bolts.

[0032] The control and hydraulic parts of the vehicle include:

[0033] The manual pump 7 is fixed to the support 9 by bolts. The support 9 is preset with a spring groove. The spring 8 is assembled into the spring groove. The spring seat 6 is pressed on the spring 8. The spring 8 is the internal spring of the manual pump 7. The spring 8 is assembled in the spring groove above the support 9. The spring seat 6 is pressed on the spring 8. The spring 8 is limited by the nut at the top end of the pump shaft.

[0034] The manual pump sleeve 4 is connected to the pre-welded part of the piston cylinder 13 by a hinge, and the control rod 1 together with the control rod connecting sleeve 2 is fixed to the manual pump sleeve 4 by bolts 3. The integrated block 26 is welded to the support 9, on which the sequence valve 25, the two-position four-way manual reversing valve 27, the safety valve 33, the motor oil pipe 28 are assembled by threads, and there is also a pipeline connecting the hydraulic pump to the integrated block 26. The small displacement gear motor 31 is welded to the motor support 32, and the motor support 32 is welded to the support 9. At the same time, the output shaft of the small displacement gear motor 31 is connected to the wheel shaft 18. In addition, the seals of the hydraulic pipelines and components should be properly installed.

[0035] The integrated block in the hydraulic vehicle can be fixed on the base using a support. The integrated block 26 is used to fix the valve, and an oil circuit is designed in the block.

[0036] The small displacement gear motor 31 can be connected to the support 9 by bolts.

[0037] The motor oil pipe 28 can be connected using a rubber hose or the like.

[0038] The chains on the hydraulic vehicle lowering handle 34 and the hydraulic vehicle auxiliary walking and braking handle 35 are respectively connected to the switch of the piston cylinder's own stop valve 37 and the manual switch of the reversing valve 27.

[0039] The opening pressure of the sequence valve 25 needs to be higher than the maximum design pressure of the small displacement gear motor 31 .

[0040] The hydraulic vehicle manual pump 7 has a built-in oil tank.

[0041] The hydraulic vehicle piston cylinder 13 has a shut-off valve 37 built in.

[0042] A throttle hole 36 is drilled on the hydraulic vehicle integrated block 26 .

[0043] Example 1

[0044] Hydraulic vehicle lifting circuit

[0045] like Figure 3 As shown, the main body of the hydraulic lifting circuit is composed of a piston cylinder 13, a two-position four-way manual reversing valve 27, a connecting rod 20, a connecting rod 21, a connecting rod 24, and the connecting parts between each component and the support and the sealing parts in the pipeline. During the lifting process, the operator manually operates the control rod 1 to move up and down, and the manual pump pressure sleeve 4 presses the spring seat 6 to make the manual hydraulic pump 7 start pumping oil. At this time, the operator cannot open the hydraulic vehicle auxiliary walking and brake handle 35. The two-position four-way manual reversing valve 27 is in the right position shown in the hydraulic principle diagram under the action of the spring force. The oil of the manual pump 7 is pumped into the lower chamber of the piston cylinder, and the piston is pushed up. The piston rod pushes up and drives the connecting rod 20 and then drives the connecting rod 21 and the connecting rod 24. The cart flatbed 22 moves upward as a whole, completing the lifting of the hydraulic vehicle. When the hydraulic vehicle needs to be lowered, the operator manually presses the hydraulic vehicle lowering handle 34, the stop valve 37 of the piston cylinder 13 opens, and the cart flatbed 22 returns to its original position under the drive of its own weight. When the operator manually pumps oil to make the piston cylinder 13 exceed the limit height, the oil in the piston cylinder 13 exceeds the set pressure of the safety valve 33, and the safety valve 33 overflows the excess oil into the oil tank.

[0046] Example 2

[0047] Hydraulic vehicle travel circuit

[0048] like Figure 3 As shown, this circuit is mainly composed of a two-position four-way manual reversing valve 27, a motor oil pipe 28, a small-displacement gear motor 31, a motor support 32, and seals and fixing components on the auxiliary pipelines. The use steps of this circuit are as follows: when the hydraulic vehicle needs to enter the travel circuit, the operator needs to press the hydraulic vehicle auxiliary travel and brake handle 35. At this time, the two-position four-way manual reversing valve 27 is manually reversed to the left position, and the small-displacement gear motor 31 is connected to the hydraulic pump 7 through the motor oil pipe 28, completing the conversion from the lifting circuit to the travel circuit. After that, the operator can use the control lever 1 to operate the hydraulic vehicle to travel, that is: when the manual pump 7 pumps oil, the small-displacement gear motor 31 drives the large wheel 19 to rotate, thereby providing auxiliary force for the hydraulic vehicle to go uphill. The trolley is self-locked through the one-way valve in the manual pump 7, and the trolley will not slide down the ramp.

[0049] Example 3

[0050] Braking circuit for trolleys

[0051] like Figure 3As shown, this circuit is mainly composed of a two-position four-way manual reversing valve 27, a motor oil pipe 28, a small displacement gear motor 31, a motor support 32, a sequence valve 25, a throttle hole 36, and seals and fixing components on the auxiliary pipelines. The use steps of this circuit are as follows: the operator slowly pushes the cart down the slope. When the speed of the cart increases, the operator needs to press the hydraulic vehicle auxiliary walking and brake handle 35. At this time, the vehicle will start to brake due to the one-way cutoff of the one-way valve in the hydraulic pump 7. At the same time, due to the large reversing hydraulic shock generated when the two-position four-way manual reversing valve 27 is switched, the sequence valve 25 is opened due to the increase in pressure in the hydraulic pipeline, and the hydraulic oil returns to the oil tank through the throttle hole 36, thereby converting the gravitational potential energy of the heavy object into the internal energy of the hydraulic oil. Therefore, the vehicle speed is reduced, and the vehicle starts to accelerate after releasing the hydraulic vehicle auxiliary walking and brake handle 35. The operator repeatedly operates the hydraulic vehicle auxiliary walking and brake handle 35 to allow the hydraulic vehicle to move smoothly to the bottom of the slope.

[0052] The above is the use method and working principle of the hydraulic vehicle in uphill assist and downhill braking, but the hydraulic vehicle may develop more usage functions in the subsequent use process. Within the scope of professional knowledge possessed by ordinary technology in this field, the present invention can be modified or replaced by equivalents without departing from the spirit and essence of the present invention, but the technical solutions and improvements thereof that do not depart from the scope of the present invention should be covered within the scope of the claims of this patent.

Claims

1. A new type of hydraulic vehicle for industrial transportation, characterized by: It comprises a control rod (1), a control rod connecting sleeve (2), a manual pump pressing sleeve (4), a manual pump (7), a support (9), a piston rod (11), a trapezoidal connecting piece (12), a piston cylinder (13), a bearing seat (15), a locking retaining ring (17), a wheel shaft (18), a large wheel (19), a connecting rod one (20), a connecting rod two (21), a cart flat plate (22), a connecting rod three (23), a small wheel (24), a sequence valve (25), an integrated block (26), a two-position four-way manual reversing valve (27), a motor oil pipe (28), a small displacement gear motor (31), a motor support (32), and a safety valve (33); The large wheel (19) is connected to the wheel shaft (18), the small wheel (24) is connected to the connecting rod three (23), and the wheels together constitute the ground support part of the vehicle; the support (9) is installed on the wheel shaft (18), and the locking ring (17) supports the bearing seat (15); the wheel shaft (18) passes through the middle through hole of the bearing seat (15), and the bearing seat (15) is connected to the small wheel (24) through the connecting rod one (20), the connecting rod two (21) and the connecting rod three (23); the piston cylinder (13) is fixed to the support (9); the piston rod (11) is connected to the upper part of the trapezoidal connecting member (12), and the lower part of the trapezoidal connecting member (12) is connected to the cart flat plate (22); The manual pump (7) is fixed to the support (9) by bolts, the manual pump pressure sleeve (4) is connected to the pre-welded part on the piston cylinder (13) by hinges, and the control rod (1) together with the control rod connecting sleeve (2) is fixed to the manual pump pressure sleeve (4) by bolts (3); the integrated block (26) is welded to the support (9), and is equipped with a sequence valve (25), a two-position four-way manual reversing valve (27), a safety valve (33), a motor oil pipe (28), and a pipeline connecting the hydraulic pump to the integrated block (26); the small displacement gear motor (31) is welded to the motor support (32), and the motor support (32) is welded to the support (9), and the output shaft of the small displacement gear motor (31) is connected to the wheel shaft (18); The hydraulic vehicle manual pump (7) has a built-in oil tank; the hydraulic vehicle piston cylinder (13) has a built-in stop valve (37); and a throttle hole (36) is drilled on the hydraulic vehicle integrated block (26); The stop valve (37) is connected in parallel with a safety valve (33). The small displacement gear motor (31) is connected to the manual pump (7) via a two-position four-way manual reversing valve (27). The two-position four-way manual reversing valve (27) is connected to the piston cylinder (13).

2. A new type of hydraulic vehicle for industrial transportation according to claim 1, characterized in that: The rolling bearing (16) is installed in the bearing seat (15), and the clearance of the rolling bearing (16) is adjusted by the washer (14).

3. A new type of hydraulic vehicle for industrial transportation according to claim 2, characterized in that: One end of the connecting rod 1 (20) is connected to the bearing seat (15) through a hinge, the middle part of the connecting rod 1 (20) is fixed on the trapezoidal connecting member (12), the other end of the connecting rod 1 (20) is connected to the connecting rod 2 (21) through a hinge, and the connecting rod 2 (21) is connected to the connecting rod 3 (23) through a hinge.

4. A new type of hydraulic vehicle for industrial transportation according to claim 3, characterized in that: The support (9) is preset with a spring groove, the spring (8) is assembled in the spring groove, and the spring seat (6) is pressed on the top of the spring (8); the spring (8) is an internal spring of the manual pump (7), and the spring (8) is limited by a nut at the top end of the pump shaft.

5. A new type of hydraulic vehicle for industrial transportation according to claim 4, characterized in that: The integrated block (26) is used to fix the valve, and an oil circuit is designed inside the block.

6. A new type of hydraulic vehicle for industrial transportation according to claim 5, characterized in that: The small displacement gear motor (31) is connected to the support (9) by bolts; the opening pressure of the sequence valve (25) is higher than the maximum design pressure of the small displacement gear motor (31).

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