A swing cylinder driven outrigger turnover mechanism

Abstract

The present application relates to a kind of swing cylinder driven outrigger turnover mechanism, belong to the technical field of truck crane;Including outrigger beam and outrigger, outrigger is set to the end of outrigger beam, swing cylinder is set between outrigger and the end of outrigger beam, wherein the shell of swing cylinder is fixedly connected with outrigger, swing cylinder swing rod is fixedly connected with the end of outrigger beam, locking mechanism is set between the shell of swing cylinder and swing rod, the locking mechanism includes buffer block and locking pin, pin shaft is slidably arranged in the inside of locking pin, pin shaft and swing rod are kept to be disconnected;Overall closed, in the environment such as island reef environment, the corrosion resistance of higher salt fog concentration is stronger, and the working life is longer, swing cylinder drives outrigger to overturn, and the stability and precision of operation are higher.

Description

Technical Field

[0001] This invention belongs to the field of truck-mounted crane technology, specifically relating to a swing cylinder driven outrigger tilting mechanism. Background Technology

[0002] As a key component of truck-mounted cranes, the outriggers' load-bearing capacity, operational reliability, and service life are all important indicators. Currently, the main problems with existing truck-mounted crane outriggers and swing cylinders in the domestic market are as follows: (1) The outriggers of existing truck-mounted cranes on the market are mostly driven by hydraulic cylinders to achieve the tilting action through a gear and rack mechanism or a cam and rod mechanism. However, in environments with high salt spray concentrations, such as island and reef environments, the gear and rack mechanism and the cam and rod mechanism are prone to wear and corrosion after long-term use, which leads to a reduction in product life. (2) Existing swing cylinders in the market mainly bear torque and are rarely used in scenarios where they bear radial force. However, the connection between the outriggers and the crossbeam of the truck crane needs to bear a large radial force. Therefore, existing swing cylinders cannot be directly applied to the outriggers of the truck crane for tilting. Summary of the Invention

[0003] This invention overcomes the shortcomings of the prior art by proposing a swing cylinder-driven outrigger tilting mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution.

[0005] A swing cylinder-driven outrigger tilting mechanism includes an outrigger beam and an outrigger. The outrigger is disposed at the end of the outrigger beam. A swing cylinder is disposed between the outrigger and the end of the outrigger beam. The housing of the swing cylinder is fixedly connected to the outrigger, and the swing rod of the swing cylinder is fixedly connected to the end of the outrigger beam. A locking mechanism is disposed between the housing of the swing cylinder and the swing rod. The locking mechanism includes a buffer block and a locking pin. A pin is slidably disposed inside the locking pin, and the pin is detachably connected to the swing rod.

[0006] Furthermore, the extension axis of the outrigger is perpendicular to the extension axis of the outrigger crossbeam, and the outrigger rotates about the extension axis of the outrigger crossbeam.

[0007] Furthermore, a first flange plate is fixedly installed at the end of the outrigger beam, a second flange plate is fixedly installed at the mounting end of the outrigger, a third flange plate is fixedly installed at the end of the swing rod of the swing cylinder, and a fourth flange plate is fixedly installed on the outer wall of the swing cylinder housing; wherein the first flange plate and the third flange plate are connected to each other and are fixedly connected by a ring of bolts and nuts; the second flange plate and the fourth flange plate are connected to each other and are fixedly connected by a ring of bolts and nuts.

[0008] Furthermore, a buffer block is fixedly installed at the corner of the end face of the third flange plate away from the support beam, and a locking hole is provided at each of the two opposite corners of the third flange plate, one of which is located on one side of the buffer block.

[0009] Furthermore, the locking pin also includes a pin sleeve; a fixing plate is fixedly installed on the outside of the housing of the swing cylinder, a mating plate is fixedly installed at the end of the fixing plate, a mounting hole with both ends passing through is provided on the fixing plate, and a pin sleeve is fixedly installed inside the mounting hole.

[0010] Furthermore, the pin sleeve is a cylindrical structure with openings at both ends. The inner diameter of the pin sleeve at the end closer to the support beam is larger than the inner diameter at the end farther from the support beam, and the end face of the pin sleeve at the end farther from the support beam is a bevel.

[0011] Furthermore, the pin shaft is slidably arranged inside the pin sleeve, and an outer expansion ring is fixedly arranged at the end of the pin shaft near the support leg beam. The outer diameter of the outer expansion ring is larger than the outer diameter of the pin shaft. The end of the pin shaft away from the support leg beam extends to the outside of the pin sleeve and is fixedly arranged with a rotating seat. A rotating handle is fixedly arranged on the outer wall of the rotating seat.

[0012] Furthermore, the rotating seat has a cylindrical structure, and the outer diameter of the rotating seat is equal to that of the outer side of the pin sleeve. The end face of the rotating seat near the support beam is an inclined surface; the inclined surface on the rotating seat and the inclined surface on the pin sleeve maintain sliding contact.

[0013] Furthermore, a spring is sleeved on the outside of the pin. One end of the spring contacts the outer expansion ring end face on the pin, and the other end of the spring contacts the inner wall of the pin sleeve at the end away from the support leg beam.

[0014] Furthermore, when the mating plate on the fixed plate comes into contact with the buffer block, the pin corresponds to the locking hole on one side of the buffer block. When the outer wall of the rotating seat is rotated to coincide with the outer wall of the pin sleeve, the end of the pin near the support leg beam is inserted into the locking hole on one side of the buffer block, and the support leg and the support leg beam are locked together.

[0015] The beneficial effects of this invention compared to the prior art are as follows: (1) The swing cylinder is externally mounted and is not limited by the internal cavity space of the support leg beam, and the overall structure is simple and compact.

[0016] (2) The transmission mechanism is protected by the housing of the swing cylinder, which makes it more resistant to corrosion in environments with high salt spray concentrations, such as island and reef environments.

[0017] (3) The reaction force when the outrigger is in action is transmitted from the shell of the swing cylinder to the swing rod of the swing cylinder through the internal structure. The swing rod is fixedly connected to the crossbeam of the outrigger through the flange plate. Finally, the crossbeam of the outrigger bears the force, and the radial bearing capacity is significantly improved.

[0018] (4) The swing cylinder drives the outrigger to flip, making the flipping stroke control more precise. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle; Figure 3 This is a schematic diagram showing the connection between the outrigger and the outrigger crossbeam; Figure 4 This is a schematic diagram of the locking mechanism; Figure 5 This is a front view of the invention when it is in driving mode; Figure 6 This is a front view of the invention in operation. Among them, 1 is the support leg, 2 is the support leg beam, 3 is the swing cylinder, 4 is the locking mechanism, 5 is the buffer block, 6 is the locking pin, 7 is the pin shaft, 8 is the first flange plate, 9 is the second flange plate, 10 is the third flange plate, 11 is the fourth flange plate, 12 is the locking hole, 13 is the fixing plate, 14 is the docking plate, 15 is the pin sleeve, 16 is the outer expansion ring, 17 is the rotating seat, 18 is the rotating handle, and 19 is the spring. Detailed Implementation

[0020] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solutions of this invention are described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0021] like Figure 1 As shown in Figure 6, the present invention provides a swing cylinder driven leg flipping mechanism, including a leg beam 2 and a leg 1. The leg 1 is disposed at the end of the leg beam 2. A swing cylinder 3 is disposed between the end of the leg 1 and the end of the leg beam 2. The housing of the swing cylinder 3 is fixedly connected to the leg 1, and the swing rod of the swing cylinder 3 is fixedly connected to the end of the leg beam 2. A locking mechanism 4 is disposed between the housing of the swing cylinder 3 and the swing rod. The locking mechanism 4 includes a buffer block 5 and a locking pin 6. A pin 7 is slidably disposed inside the locking pin 6. The pin 7 and the swing rod are kept in a detachable connection.

[0022] The extension axis of the outrigger 1 is perpendicular to the extension axis of the outrigger beam 2, and the outrigger 1 rotates around the extension axis of the outrigger beam 2.

[0023] A first flange plate 8 is fixedly installed at the end of the support leg beam 2, a second flange plate 9 is fixedly installed at the mounting end of the support leg 1, a third flange plate 10 is fixedly installed at the end of the swing rod of the swing cylinder 3, and a fourth flange plate 11 is fixedly installed on the outer wall of the housing of the swing cylinder 3. The first flange plate 8, second flange plate 9, third flange plate 10, and fourth flange plate 11 are all square plate structures. The first flange plate 8 and the third flange plate 10 are connected opposite each other and fixedly connected by a ring of bolts and nuts; the second flange plate 9 and the fourth flange plate 11 are connected opposite each other and fixedly connected by a ring of bolts and nuts.

[0024] The buffer block 5 is fixedly installed at the corner of the end face of the third flange plate 10 away from the support beam 2. A locking hole 12 is provided at each of the two opposite corners of the third flange plate 10, and one of the locking holes 12 is located on one side of the buffer block 5.

[0025] The locking pin 6 also includes a pin sleeve 15, a rotating seat 17, a rotating handle 18, and a spring 19. A fixing plate 13 is fixedly installed on the outside of the housing of the swing cylinder 3, and a mating plate 14 is fixedly installed at the end of the fixing plate 13. A mounting hole with both ends is provided on the fixing plate 13, and a pin sleeve 15 is fixedly installed inside the mounting hole. The pin sleeve 15 is a cylindrical structure with open ends, and the axis of the pin sleeve 15 is parallel to the swing axis of the swing cylinder 3. The end face of the pin sleeve 15 away from the support leg beam 2 is a bevel. The inner diameter of the pin sleeve 15 near the support leg beam 2 is larger than the inner diameter of the end away from the support leg beam 2. A pin 7 is slidably disposed inside the pin sleeve 15. An expansion ring 16 is fixedly disposed at the end of the pin 7 near the support leg beam 2, and the outer diameter of the expansion ring 16 is larger than the outer diameter of the pin 7. The end of the pin 7 away from the support leg beam 2 extends to the outside of the pin sleeve 15 and is fixedly disposed on a rotating seat 17. A rotating handle 18 is fixedly disposed on the outer wall of the rotating seat 17. The rotating seat 17 has a cylindrical structure, and its outer diameter is equal to that of the outer side of the pin sleeve 15. The end face of the rotating seat 17 near the support leg beam 2 is a slope. The slope on the rotating seat 17 maintains sliding contact with the slope on the pin sleeve 15. A spring 19 is sleeved on the outside of the pin 7. One end of the spring 19 contacts the end face of the expansion ring 16 on the pin 7, and the other end of the spring 19 contacts the inner wall of the pin sleeve 15 away from the support leg beam 2.

[0026] When the mating plate 14 on the fixed plate 13 contacts the buffer block 5, the pin 7 corresponds to the locking hole 12 on one side of the buffer block 5. When the outer wall of the rotating seat 17 is rotated to coincide with the outer wall of the pin sleeve 15, the end of the pin 7 near the support leg beam 2 is inserted into the locking hole 12 on one side of the buffer block 5. At this time, the support leg 1 and the support leg beam 2 are locked relative to each other, the support leg 1 is in the traveling state, and the telescopic end of the support leg 1 is vertically upward.

[0027] When moving to the working position, the rotating handle 18 is held to rotate the rotating seat 17. Since the inclined surface on the rotating seat 17 and the inclined surface on the pin sleeve 15 maintain sliding contact, when the two inclined surfaces rotate relative to each other, the rotating seat 17 and the rotating handle 18 are moved away from the support leg beam 2. The rotating seat 17 also moves the pin 7 away from the support leg beam 2, so that the end of the pin 7 is pulled out from the locking hole 12 on the third flange plate 10. During this process, the spring 19 is gradually compressed, and the swing rod of the swing cylinder 3 can rotate relative to the housing. Then, the swing rod of the swing cylinder 3 is controlled to rotate 180°, and the swing rod drives the support leg 1 to rotate downward 180°, so that the extension end of the support leg 1 is vertically downward. At this time, the pin 7 corresponds to another locking hole 12 on the third flange plate 10. Then, rotate the handle 18 in the opposite direction. The handle 18 drives the rotating seat 17 to rotate in the opposite direction, so that the outer side of the rotating seat 17 and the outer side of the pin sleeve 15 overlap again. During this process, under the action of the spring 19, the rotating seat 17, the handle 18, and the pin 7 all move towards the side of the support beam 2 until the end of the pin 7 is inserted into the locking hole 12 on the third flange plate 10, thereby locking the position of the support leg 1 again. At this time, the support leg 1 is in the working state.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A swing cylinder-driven outrigger tilting mechanism, characterized in that: It includes a support beam (2) and a support leg (1). The support leg (1) is located at the end of the support beam (2). A swing cylinder (3) is provided between the end of the support leg (1) and the end of the support beam (2). The housing of the swing cylinder (3) is fixedly connected to the support leg (1). The swing rod of the swing cylinder (3) is fixedly connected to the end of the support beam (2). A locking mechanism (4) is provided between the housing of the swing cylinder (3) and the swing rod. The locking mechanism (4) includes a buffer block (5) and a locking pin (6). A pin (7) is slidably provided inside the locking pin (6). The pin (7) and the swing rod are kept in a detachable connection.

2. The outrigger tilting mechanism driven by a swing cylinder according to claim 1, characterized in that: The extension axis of the outrigger (1) is perpendicular to the extension axis of the outrigger beam (2), and the outrigger (1) rotates around the extension axis of the outrigger beam (2).

3. The outrigger tilting mechanism driven by a swing cylinder according to claim 1, characterized in that: A first flange plate (8) is fixedly installed at the end of the support leg beam (2), a second flange plate (9) is fixedly installed at the mounting end of the support leg (1), a third flange plate (10) is fixedly installed at the end of the swing rod of the swing cylinder (3), and a fourth flange plate (11) is fixedly installed on the outer wall of the housing of the swing cylinder (3); wherein the first flange plate (8) and the third flange plate (10) are connected to each other and are fixedly connected by a ring of bolts and nuts; the second flange plate (9) and the fourth flange plate (11) are connected to each other and are fixedly connected by a ring of bolts and nuts.

4. The outrigger tilting mechanism driven by a swing cylinder according to claim 3, characterized in that: The buffer block (5) is fixedly installed at the corner of the end face of the third flange plate (10) away from the support beam (2). A locking hole (12) is provided at each of the two opposite corners of the third flange plate (10), and one of the locking holes (12) is located on one side of the buffer block (5).

5. The outrigger tilting mechanism driven by a swing cylinder according to claim 4, characterized in that: The locking pin (6) also includes a pin sleeve (15); a fixing plate (13) is fixedly installed on the outer side of the housing of the swing cylinder (3), a docking plate (14) is fixedly installed at the end of the fixing plate (13), and a mounting hole with both ends through is provided on the fixing plate (13), and a pin sleeve (15) is fixedly installed inside the mounting hole.

6. The outrigger tilting mechanism driven by a swing cylinder according to claim 5, characterized in that: The pin sleeve (15) is a cylindrical structure with openings at both ends. The inner diameter of the pin sleeve (15) at the end near the support beam (2) is larger than the inner diameter at the end away from the support beam (2). The end face of the pin sleeve (15) at the end away from the support beam (2) is a slope.

7. The outrigger tilting mechanism driven by a swing cylinder according to claim 6, characterized in that: The pin (7) is slidably arranged inside the pin sleeve (15). An outer expansion ring (16) is fixedly arranged at one end of the pin (7) near the support leg beam (2). The outer diameter of the outer expansion ring (16) is larger than the outer diameter of the pin (7). The end of the pin (7) away from the support leg beam (2) extends to the outside of the pin sleeve (15) and is fixedly arranged with a rotating seat (17). A rotating handle (18) is fixedly arranged on the outer wall of the rotating seat (17).

8. The outrigger tilting mechanism driven by a swing cylinder according to claim 7, characterized in that: The rotating seat (17) is a cylindrical structure. The outer diameter of the rotating seat (17) is equal to that of the outer side of the pin sleeve (15). The end face of the rotating seat (17) near the support beam (2) is an inclined surface. The inclined surface on the rotating seat (17) and the inclined surface on the pin sleeve (15) maintain sliding contact.

9. The outrigger tilting mechanism driven by a swing cylinder according to claim 8, characterized in that: A spring (19) is sleeved on the outside of the pin (7). One end of the spring (19) is in contact with the end face of the outer expansion ring (16) on the pin (7), and the other end of the spring (19) is in contact with the inner wall of the pin sleeve (15) away from the support leg beam (2).

10. A swing cylinder driven leg tilting mechanism according to claim 9, characterized in that: When the mating plate (14) on the fixed plate (13) comes into contact with the buffer block (5), the pin (7) corresponds to the locking hole (12) on one side of the buffer block (5). When the outer wall of the rotating seat (17) is rotated to coincide with the outer wall of the pin sleeve (15), the end of the pin (7) near the support leg beam (2) is inserted into the locking hole (12) on one side of the buffer block (5). At this time, the support leg (1) and the support leg beam (2) are locked relative to each other.

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