CN215484727U - Arm support device and concrete pump truck - Google Patents

Abstract

The utility model relates to concrete conveying equipment, and discloses an arm support device which comprises a last section conveying pipe (4), a previous section conveying pipe (11), a previous section arm support (10) and a rotating device (1), wherein the previous section conveying pipe (11) and the last section conveying pipe (4) are respectively arranged on two sides of the previous section arm support (10); the rotating device (1) can drive the tail conveying pipe (4) to rotate 360 degrees relative to the previous arm support (10). In addition, the utility model also relates to a concrete pump truck. The utility model can realize the 360-degree rotation of the final section conveying pipe, can reduce the weight of the whole arm support device, and can reduce the arrangement of bent pipes, thereby reducing the pressure loss of the concrete outlet pipe at the tail end of the arm support.

Description

Arm support device and concrete pump truck

Technical Field

The utility model relates to concrete conveying equipment, in particular to a boom device. In addition, the utility model also relates to a concrete pump truck.

Background

A concrete pump truck is a typical construction machine that can transport concrete along a pipeline to a place required for construction work. When the concrete pump truck is used for distributing materials, a plurality of sections of conveying pipes are needed to convey concrete, and each section of conveying pipe needs an independent arm support to support.

The traditional arm support device usually drives a tail section conveying pipe to rotate relative to a front section arm support through a tail section arm support, and the weight of the arm support is heavy, so that the whole weight of the whole arm support device is large. In addition, the traditional arm support device usually adopts an oil cylinder to drive the tail section arm support to rotate, so that the rotation angle is small and 360-degree rotation cannot be realized; and the oil cylinder is arranged on a rotating central axis, so that the extending end of the tail conveying pipe far away from the oil cylinder is required to return to the rotating central plane, and more bent pipes are required to be arranged for transition, so that the pressure loss of the concrete outlet pipe at the tail end of the arm support is increased.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide the boom device, so that the tail section conveying pipe can rotate 360 degrees relative to the previous section boom, the weight and the cost of the whole boom device can be reduced, and the pressure loss of the concrete outlet pipe at the tail end of the boom can be reduced.

In order to solve the technical problem, the utility model provides an arm support device which comprises a last section of conveying pipe, a previous section of arm support and a rotating device, wherein the previous section of conveying pipe is fixed on one side of the previous section of arm support along the length direction of the previous section of arm support, and the last section of conveying pipe is arranged on the other side of the previous section of arm support along the length direction of the previous section of arm support; the rotating device can drive the tail section conveying pipe to enable the tail section conveying pipe to rotate 360 degrees relative to the previous section arm frame.

Preferably, rotary device includes fixed shell and establishes fixed shell inside revolution mechanic, preceding festival cantilever crane one end with fixed shell fixed connection, final section conveyer pipe one end with revolution mechanic fixed connection, preceding festival conveyer pipe one end with revolution mechanic rotates and connects.

Preferably, the minor-element conveyer pipe with be equipped with the connecting pipe between the preceding section conveyer pipe, rotary device cover is established on the connecting pipe, connecting pipe one end with preceding section conveyer pipe one end is rotated and is connected, the other end with the minor-element conveyer pipe revolution mechanic fixed connection together.

Preferably, a rotating inner ring is arranged inside the fixed shell, the rotating inner ring is fixedly connected with the rotating structure, and the connecting pipe is fixedly connected with the tail conveying pipe and the rotating inner ring.

Preferably, one end of the last section of the conveying pipe, which is connected with the rotating structure, is provided with a first bent pipe, and two ends of the first bent pipe are respectively provided with a flange structure.

Preferably, a reinforcing support member is arranged between the flange structures at the two ends of the first elbow.

Preferably, a second bent pipe is arranged at one end, connected with the rotating structure, of the front section of conveying pipe, one end of the second bent pipe is connected with the front section of conveying pipe, and the other end of the second bent pipe is rotatably connected with the rotating structure.

Preferably, revolution mechanic includes intermeshing's worm wheel and worm, the worm wheel with minor details conveyer pipe one end fixed connection, the worm wheel with preceding one-tenth conveyer pipe one end is rotated and is connected, the worm passes through power device drive rotation.

Preferably, the other end of the tail conveying pipe is connected with a hose, and the hose is arranged on one side of the tail conveying pipe along the length direction of the tail conveying pipe.

Preferably, the hose is connected with the last section conveying pipe through a third bent pipe and a fourth bent pipe, one end of the third bent pipe is fixedly connected with the last section conveying pipe, the other end of the third bent pipe is rotatably connected with one end of the fourth bent pipe, and the other end of the fourth bent pipe is fixedly connected with the hose.

According to the utility model, the tail arm support is omitted, the tail conveying pipe can be directly driven to rotate 360 degrees relative to the previous arm support through the rotation of the rotating device, the weight of the whole arm support device can be reduced, the cost is reduced, and meanwhile, the width of the whole arm support device can be effectively reduced, so that the whole arm support device is more compact in arrangement; and the arrangement of the bent pipes can be reduced, so that the pressure loss of the concrete outlet pipe at the tail end of the arm support can be reduced.

The utility model also provides a concrete pump truck which comprises the arm support device.

Compared with the prior art, the concrete pump truck has the same advantages as the arm support device, and the detailed description is omitted.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

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

FIG. 2 is a schematic view of a rotary apparatus according to an embodiment of the present invention;

FIG. 3 is a perspective view of a connection structure of a rotary device with a final section of a conveying pipe and a previous section of a conveying pipe according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

fig. 5 is a schematic structural view of another embodiment of the present invention.

Description of the reference numerals

1 rotating device 1a mounting base

1b Worm gear case 1c rotating inner ring

1d inner ring bolt hole 1e base bolt hole

1f worm casing 1g power device

1h worm wheel 1j worm

2 first bend 3 reinforcing support

4 last-section conveying pipe 5 hose support

6 hose 7 pipe clamp support frame

8 fourth bend 9 third bend

10 front arm support and 11 front conveying pipe

12 second elbow 13 connecting pipe

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The utility model provides an arm support device, which comprises a tail conveying pipe 4, a front conveying pipe 11, a front arm support 10 and a rotating device 1, wherein the front conveying pipe 11 is fixed on one side of the front arm support 10 along the length direction of the front arm support 10, and the tail conveying pipe 4 is arranged on the other side of the front arm support 10 along the length direction of the front arm support 10; the rotating device 1 can drive the tail conveying pipe 4 to rotate 360 degrees relative to the previous arm support 10.

In the basic embodiment, because the traditional boom device usually drives the tail conveying pipe to rotate relative to the previous boom through the tail boom, and the weight of the boom is heavier, the utility model cancels the tail boom, directly drives the tail conveying pipe 4 to rotate relative to the previous boom 10 through the rotating device 1, can reduce the weight and the cost of the whole boom device, and can effectively reduce the width of the whole boom arrangement, so that the whole boom device is more compact in arrangement; and because the last section conveying pipe 4 is arranged on one side of the previous section arm support 10, the last section conveying pipe 4 is positioned on the side surface parallel to the rotation central plane where the previous section arm support 10 is positioned, the last section conveying pipe does not need to return to the rotation central plane, the arrangement of bent pipes can be reduced, and the pressure loss of the concrete outlet pipe at the tail end of the arm support can be reduced. Wherein, a plurality of conveying pipe supporting frames are arranged on the previous section of arm support 10 along the length direction thereof, and each conveying pipe supporting frame comprises a supporting rod and a fixed pipe clamp or a snap ring arranged on the supporting rod so as to be used for fixing the previous section of conveying pipe 11.

In order to facilitate understanding of the boom device according to the above-described basic embodiment of the present invention, the following description will be further made with reference to specific structures.

Specifically, the rotating device 1 comprises a fixed shell and a rotating structure arranged inside the fixed shell, one end of the previous section of the arm support 10 is fixedly connected with the fixed shell, one end of the last section of the conveying pipe 4 is fixedly connected with the rotating structure, and one end of the previous section of the conveying pipe 11 is rotatably connected with the rotating structure. The rotating structure can rotate relative to the fixed shell, the fixed shell is fixedly connected with one end of a previous arm support 10, the rotating structure is fixedly connected with one end of a last conveying pipe 4 and is rotatably connected with one end of a previous conveying pipe 11, so that the last conveying pipe 4 can be driven to rotate relative to the previous arm support 10 through rotation of the rotating structure, meanwhile, the previous conveying pipe 11 is fixed on one side of the previous arm support 10 along the length direction of the previous arm support 10, the last conveying pipe 4 is arranged on the other side of the previous arm support 10 along the length direction of the previous arm support 10, when the last conveying pipe 4 rotates relative to the previous arm support 10, interference cannot be generated between the last conveying pipe 4 and the previous arm support 10 and between the previous conveying pipe 11, and 360-degree rotation can be achieved.

Specifically, as shown in fig. 1 and 3, the minor part conveyer pipe 4 with be equipped with connecting pipe 13 between the preceding section conveyer pipe 11, connecting pipe 13 is the straight tube, rotary device 1 cover is established on connecting pipe 13, connecting pipe 13 one end with preceding section conveyer pipe 11 one end is rotated and is connected, the other end with minor part conveyer pipe 4 revolution mechanic fixed connection together to make revolution mechanic pass through connecting pipe 13 and minor part conveyer pipe 4 fixed connection, and rotate through connecting pipe 13 and preceding section conveyer pipe 11 and be connected.

In this embodiment, connecting pipe 13 one end with preceding a lesson conveyer pipe 11 one end is rotated and is connected, specifically, preceding a lesson conveyer pipe 11 with the one end that revolution mechanic links to each other is equipped with second return bend 12, second return bend 12 one end with preceding a lesson conveyer pipe 11 is connected, the other end with connecting pipe 13 one end is rotated and is connected, and connecting pipe 13 one end is passed through second return bend 12 and is connected with preceding a lesson conveyer pipe 11 one end rotation promptly. Wherein, the second elbow 12 is connected with the previous section of the conveying pipe 11 through a pipe clamp or a flange structure; the second elbow 12 is connected with the connecting pipe 13 through the rotation of the rotary pipe clamp, the concrete structure of the rotary pipe clamp is shown in fig. 4, the connecting end of the second elbow 12 and the connecting pipe 13 is provided with a flange, the outer peripheral surfaces of the two flanges are provided with step structures, the rotary pipe clamp is movably sleeved on the outer peripheral surfaces of the two flanges through a mounting hole, and an annular groove is formed in the rotary pipe clamp by extending the mounting hole to the radial direction of the rotary pipe clamp, so that the side wall of the annular groove is abutted to the step side surface of the step structure, the inner wall surface of the mounting hole is sleeved on the step surface of the step structure, the two flanges are limited together, and the second elbow 12 is connected with the connecting pipe 13 in a rotating mode. Of course, other connecting structures may be used to achieve the rotational connection, such as directly snap-fitting the connecting ends of the second elbow 12 and the connecting pipe 13 to each other.

In this embodiment, the other end of the connecting pipe 13 is fixedly connected to the end section conveying pipe 4 and the rotating structure, specifically, the end section conveying pipe 4 is provided with a first bent pipe 2 at the end connected to the rotating structure, and the end section conveying pipe 4 is fixedly connected to the connecting pipe 13 and the rotating structure through the first bent pipe 2. The both ends of first return bend 2 are equipped with flange structure respectively, correspondingly, the one end that stub conveyer pipe 4 and first return bend 2 link to each other also is equipped with flange structure, the one end that connecting pipe 13 and first return bend 2 link to each other also is equipped with flange structure, thereby make the flange structure of stub conveyer pipe 4 one end and the flange structure of the 2 one end of first return bend that corresponds pass through bolt fixed connection, and the flange structure of connecting pipe 13 one end and the flange structure of the 2 one end of first return bend that corresponds still have revolution mechanic to pass through bolt fixed connection, thereby with the one end of first return bend 2 and 4 one end fixed connection of stub conveyer pipe, and with the other end and the connecting pipe 13 one end of first return bend 2, revolution mechanic fixed connection, thereby when making revolution mechanic rotatory, can drive stub conveyer pipe 4 and rotate. Through set up flange structure respectively at the both ends of first return bend 2, can be fine with revolution mechanic's rotation load transmission to final section conveyer pipe 4. Wherein, because when working for a long time, the concrete can cause the wearing and tearing of return bend to the impact of first return bend 2 for return bend wall thickness attenuate leads to the structural strength reduction of return bend, consequently, is equipped with between the flange structure that 2 both ends of first return bend set up and strengthens support piece 3, thereby guarantees the structural strength of first return bend 2, strengthens support piece 3 and can be the bracing piece, and the both ends of bracing piece weld respectively on the flange structure at 2 both ends of first return bend.

Specifically, as shown in fig. 2 to 4, the rotation structure of the rotation device 1 includes a worm wheel 1h and a worm 1j which are engaged with each other, a rotating inner ring 1c is arranged inside the fixed housing, the rotating inner ring 1c and the worm wheel 1h are fixedly connected through a bolt or other fasteners, the fixed housing, the worm wheel 1h and the rotating inner ring 1c are all sleeved on the connecting pipe 13, an inner ring bolt hole 1d is further arranged on the rotating inner ring 1c, the rotating inner ring 1c is fixedly connected with one end of the connecting pipe 13 and one end of the first elbow pipe 2 through a bolt, and the other end of the connecting pipe 13 is rotatably connected with one end of the second elbow pipe 12. The worm 1j is driven to rotate by a power device 1g such as a hydraulic motor or a motor, so that the worm wheel 1h meshed with the worm wheel is driven to rotate, the rotation of the worm wheel 1h drives the rotating inner ring 1c fixedly connected with the worm wheel to rotate, the rotating inner ring 1c drives the connecting pipe 13 fixedly connected with the rotating inner ring and the first bent pipe 2 to rotate, so that the last conveying pipe 4 can be driven to rotate, and meanwhile, the second bent pipe 12 is rotatably connected with the connecting pipe 13, so that the last conveying pipe 4 can rotate relative to the previous conveying pipe 11. Wherein, fixed shell includes worm wheel shell 1b and worm shell 1f, worm wheel 1h sets up in worm wheel shell 1b, worm 1j sets up in worm shell 1f, worm wheel shell 1b and worm shell 1f become an organic whole through welding or casting, worm wheel shell 1b one side welding or casting have installation base 1a, be equipped with base bolt hole 1e on the installation base 1a, bolt fixed connection is passed through with preceding section cantilever crane 10 one end to installation base 1a, still be equipped with a plurality of strengthening rib structures on the installation base 1 a. In addition, the rotating device 1 may also adopt other rotating modes, for example, the rotating device 1 is a hollow motor which can be directly sleeved on the connecting pipe 13, so as to directly drive the connecting pipe 13 to rotate, and further enable the last conveying pipe 4 to rotate relative to the previous conveying pipe 11.

Specifically, the other end of the final conveying pipe 4 is connected with a hose 6, and the hose 6 is arranged on one side of the final conveying pipe 4 along the length direction of the final conveying pipe 4. The hose 6 may be disposed on a side of the last-segment conveying pipe 4 away from the previous-segment arm support 10 along the length direction of the last-segment conveying pipe 4 as shown in fig. 1, or may be disposed on a side of the last-segment conveying pipe 4 close to the previous-segment arm support 10 as shown in fig. 5, as long as no interference is generated between the hose 6 and the last-segment conveying pipe 4, the previous-segment conveying pipe 11, and the previous-segment arm support 10. Wherein, be equipped with a plurality of hose support 5 along its length direction on the minor matters conveyer pipe 4, hose support 5 sets up along the direction perpendicular with 4 length direction of minor matters conveyer pipe, plays the effect of joint support, and hose 6 passes through hose support 5 detachably to be fixed on minor matters conveyer pipe 4. When concrete is conveyed, the hose 6 can be detached from the last section of the conveying pipe 4, so that the free end of the hose 6 can hang down freely, and the concrete is conveyed to a station to be distributed through the hose 6; when need not carry the concrete, fix hose 6 on final section conveyer pipe 4 through hose support 5, avoid hose 6 to rock relative preceding section conveyer pipe 11, and then avoid hose 6 to get rid of the concrete and spill everywhere, also can avoid hose 6 to reduce its and final section conveyer pipe 4 between the connection stability when rocking simultaneously. The hose support 5 comprises a support bar and a fixed pipe clamp or an elastic snap ring arranged on the support bar so as to fix the hose 6, wherein the fixed pipe clamp comprises two semi-circular pipe clamps which are fixedly connected together through a bolt.

In this embodiment, as shown in fig. 1 and 5, the hose 6 is connected to the last conveying pipe 4 through a third elbow pipe 9 and a fourth elbow pipe 8, one end of the third elbow pipe 9 is fixedly connected to the last conveying pipe 4, the other end of the third elbow pipe is rotatably connected to one end of the fourth elbow pipe 8, and the other end of the fourth elbow pipe 8 is fixedly connected to the hose 6. Wherein, both ends of the last section conveyer pipe 4 are all provided with flange structures, one end of the last section conveyer pipe is connected with the first bent pipe 2 through the flange structures, correspondingly, one end of the third bent pipe 9 connected with the last section conveyer pipe is also provided with the flange structures, thereby fixedly connecting the flange structures at one end of the last section conveyer pipe 4 and the corresponding flange structures at one end of the third bent pipe 9 through bolts. The two ends of the tail conveying pipe 4 are respectively provided with the flange structures, so that the effective transmission of the rotary load can be ensured. Through the rotation connection of third return bend 9 and fourth return bend 8 for hose 6 dismantles the back from last festival conveyer pipe 4, and fourth return bend 8 can rotate 9 relative third return bend under the effect of gravity, thereby makes the free end of hose 6 can hang down freely. The fourth elbow 8 and the hose 6 are fixedly connected through a fixed pipe clamp, the third elbow 9 and the fourth elbow 8 are rotatably connected through a rotary pipe clamp, a pipe clamp support frame 7 used for supporting the rotary pipe clamp is arranged at the flange structure of the third elbow 9, the pipe clamp support frame 7 comprises a support seat fixed on the flange structure of the third elbow 9, a support rod is arranged on the support seat along the length direction of the last section of the conveying pipe 4, and one end, far away from the support seat, of the support rod is fixed on the rotary pipe clamp. Of course, other connecting structures can be adopted for the third elbow 9 and the fourth elbow 8 to realize the rotary connection.

The utility model also provides a concrete pump truck which comprises the arm support device.

Compared with the prior art, the concrete pump truck has the same advantages as the arm support device, and the detailed description is omitted.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (11)

1. The boom device is characterized by comprising a last section of conveying pipe (4), a previous section of conveying pipe (11), a previous section of boom (10) and a rotating device (1), wherein the previous section of conveying pipe (11) is fixed on one side of the previous section of boom (10) along the length direction of the previous section of boom (10), and the last section of conveying pipe (4) is arranged on the other side of the previous section of boom (10) along the length direction of the previous section of boom (10); the rotating device (1) can drive the tail conveying pipe (4) to rotate 360 degrees relative to the previous arm support (10).

2. The boom device as claimed in claim 1, wherein the rotating device (1) comprises a fixed housing and a rotating structure arranged inside the fixed housing, one end of the previous section of boom (10) is fixedly connected with the fixed housing, one end of the last section of conveying pipe (4) is fixedly connected with the rotating structure, and one end of the previous section of conveying pipe (11) is rotatably connected with the rotating structure.

3. The boom device as claimed in claim 2, wherein a connecting pipe (13) is arranged between the last section of conveying pipe (4) and the previous section of conveying pipe (11), the rotating device (1) is sleeved on the connecting pipe (13), one end of the connecting pipe (13) is rotatably connected with one end of the previous section of conveying pipe (11), and the other end of the connecting pipe is fixedly connected with the last section of conveying pipe (4) and the rotating structure.

4. The boom device according to claim 3, characterized in that a rotating inner ring (1c) is arranged inside the fixed housing, the rotating inner ring (1c) is fixedly connected with the rotating structure, and the connecting pipe (13) is fixedly connected with the final conveying pipe (4) and the rotating inner ring (1 c).

5. The boom device according to claim 2, characterized in that one end of the last section of the conveying pipe (4) connected with the rotating structure is provided with a first elbow pipe (2), and two ends of the first elbow pipe (2) are respectively provided with a flange structure.

6. Boom device according to claim 5, characterized in that a reinforcing support (3) is arranged between the flange structures at both ends of the first bend (2).

7. The boom device according to claim 2, characterized in that a second elbow pipe (12) is arranged at the end of the previous section of the conveying pipe (11) connected with the rotary structure, one end of the second elbow pipe (12) is connected with the previous section of the conveying pipe (11), and the other end is rotatably connected with the rotary structure.

8. The boom device according to any one of claims 2 to 7, characterized in that the rotating structure comprises a worm wheel (1h) and a worm (1j) which are meshed with each other, the worm wheel (1h) is fixedly connected with one end of the last conveying pipe (4), the worm wheel (1h) is rotatably connected with one end of the previous conveying pipe (11), and the worm (1j) is driven to rotate by a power device (1 g).

9. The boom device according to any of the claims 1 to 7, characterized in that the other end of the final conveyor pipe (4) is connected with a hose (6), and the hose (6) is arranged on one side of the final conveyor pipe (4) along the length direction of the final conveyor pipe (4).

10. The boom device according to claim 9, characterized in that the hose (6) is connected to the last section of the conveying pipe (4) through a third elbow (9) and a fourth elbow (8), one end of the third elbow (9) is fixedly connected to the last section of the conveying pipe (4), the other end of the third elbow is rotatably connected to one end of the fourth elbow (8), and the other end of the fourth elbow (8) is fixedly connected to the hose (6).

11. A concrete pump truck characterized by comprising the boom apparatus of any one of claims 1 to 10.

Images