CN217481309U - Vehicle-mounted concrete spraying machine and boom limiting and protecting mechanism thereof - Google Patents

Abstract

The utility model discloses a spacing protection machanism of cantilever crane, including locating immediately the sub vehicle frame on spacing support, set up in the part of strutting on spacing support top, the top of spacing support extends to erect in the bottom of the hydro-cylinder mount pad of sub vehicle frame top, it is right when cantilever crane hydro-cylinder pressure release to strut the part the bottom of hydro-cylinder mount pad forms the support. Therefore, the utility model discloses a spacing protection machanism of cantilever crane when the cantilever crane hydro-cylinder takes place automatic pressure release trouble, support through spacing support and the hydro-cylinder mount pad of strut part on to the cantilever crane first, do not form direct contact with the cantilever crane hydro-cylinder, not only can ensure that automobile body and vehicle-mounted personnel avoid the collision influence that the automatic pressure release trouble of cantilever crane hydro-cylinder leads to, still can avoid causing the harm to the cantilever crane hydro-cylinder simultaneously. The utility model also discloses a vehicular concrete spraying machine, its beneficial effect as above.

Description

Vehicle-mounted concrete spraying machine and boom limiting and protecting mechanism thereof

Technical Field

The utility model relates to an engineering machine tool technical field, in particular to spacing protection machanism of cantilever crane.

The utility model discloses still relate to a vehicular concrete wet blasting machine.

Background

The concrete wet spraying machine is used as important equipment for tunnel construction by a drilling and blasting method, and is widely applied to tunnel concrete mixing and spraying construction.

In order to prevent the condition that the arm support of the concrete wet spraying machine falls down to damage a vehicle body or personnel on the vehicle and the like caused by the automatic pressure relief fault of the arm support oil cylinder, the safe and reliable arm support limiting support becomes an important auxiliary device in the concrete wet spraying operation.

At present, an oil cylinder limiting device can be divided into active limiting and passive limiting according to a limiting form, wherein the active limiting is to actively lock an oil cylinder by adopting a sleeve, a pin shaft and the like, so that the oil cylinder is prevented from being decompressed and retracted; passive spacing promptly through installing reasonable device, can in time prevent its retraction when the hydro-cylinder pressure release retracts, avoid the occurence of failure. Generally, the active limiting device has complex operation, high cost and less application, while the passive limiting device has simple structure and good economical efficiency, and is widely applied.

In the prior art, the boom limiting support usually depends on a buffer component and a side baffle to realize the buffer of the boom of the wet spraying machine in the falling process, or depends on a half-section pipe and a soft leather pad to form the limit, and can also depend on a sleeve and a pin shaft to carry out the limit protection, however, the existing boom limiting support is used for directly supporting and limiting the boom cylinder, although the damage of the boom and a vehicle body caused by the impact can be effectively prevented, the boom cylinder may be damaged due to the collision impact force between the boom cylinder and the boom limiting support. In addition, the existing device of the arm support limiting bracket has the disadvantages of complex structure, more parts and higher manufacturing and installation cost.

Therefore, how to ensure that a vehicle body and vehicle-mounted personnel can be prevented from being influenced by collision caused by the automatic pressure relief fault of the boom cylinder, and meanwhile, the damage to the boom cylinder is avoided is a technical problem faced by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a spacing protection machanism of cantilever crane can ensure that automobile body and vehicle-mounted personnel avoid the collision influence that the automatic pressure release trouble of cantilever crane hydro-cylinder leads to, avoids causing the harm to the cantilever crane hydro-cylinder simultaneously. Another object of the utility model is to provide a vehicular concrete spraying machine.

In order to solve the technical problem, the utility model provides a spacing protection machanism of cantilever crane, including locating immediately the sub vehicle frame on spacing support, set up in the support part on spacing support top, the top of spacing support extends to erect in the bottom of the hydro-cylinder mount pad of sub vehicle frame top, it is right when cantilever crane hydro-cylinder pressure release to support the part be used for the bottom formation of hydro-cylinder mount pad to support.

Preferably, the limiting support comprises a connecting bottom plate and a support main body, the connecting bottom plate is used for being connected with the auxiliary frame, the support main body is connected to the connecting bottom plate and extends vertically, and the supporting part is arranged at the top end of the support main body.

Preferably, spacing support still including connect in the top of support subject and along predetermineeing the direction slope and extend to the extension rod of hydro-cylinder mount pad bottom, support the part set up in on the extension rod.

Preferably, the extension rod and the bracket main body form an included angle of 30-60 degrees.

Preferably, the support main part is provided with two, and set up respectively in the both sides of sub vehicle frame, two the extension rod respectively with strut the both ends of part and link to each other.

Preferably, the limit bracket further comprises a reinforcing cross beam connected between the two bracket main bodies and used for reinforcing the structural strength.

Preferably, the spacing support still including connect in support main part with between the extension rod, be used for strengthening the bracing roof beam that supports intensity.

Preferably, the support member is arc-shaped to release force when in contact with the cylinder mount.

Preferably, the upper surface of the supporting member is provided with a buffer layer.

The utility model also provides a vehicular concrete spraying machine, including the sub vehicle frame, erect in the hydro-cylinder mount pad of sub vehicle frame top, rotationally connect in cantilever crane hydro-cylinder in the hydro-cylinder mount pad, wherein, still including set up in the spacing protection machanism of cantilever crane on the sub vehicle frame, the spacing protection machanism of cantilever crane specifically is above-mentioned arbitrary the spacing protection machanism of cantilever crane.

The utility model provides a spacing protection machanism of cantilever crane mainly includes spacing support and struts the part. Wherein, spacing support sets up immediately on the sub vehicle frame of vehicular concrete spraying wet machine, and the support part sets up the top position at spacing support. Meanwhile, the top end of the limiting bracket extends to the upper part of the auxiliary frame and is positioned at the bottom of the oil cylinder mounting seat erected in the area above the auxiliary frame, and the supporting part is positioned at the bottom of the oil cylinder mounting seat and is opposite to the bottom of the oil cylinder mounting seat. When the arm support oil cylinder has an automatic pressure relief fault, the arm support starts to gradually incline and drop, and drives the oil cylinder mounting seat to incline and drop together, and the oil cylinder mounting seat is used for mounting the arm support oil cylinder, and the arm support oil cylinder is generally mounted in the oil cylinder mounting seat, so that in the process of inclining and dropping the arm support, the oil cylinder mounting seat firstly forms collision insertion with a supporting component at the lower position of the oil cylinder mounting seat, a stable support is formed on the oil cylinder mounting seat through the supporting component and the limiting support, a stable support is formed on the whole arm support, and the arm support is prevented from further dropping. Compared with the prior art, the utility model provides a spacing protection machanism of cantilever crane when the cantilever crane hydro-cylinder takes place automatic pressure release trouble, supports through spacing support and the hydro-cylinder mount pad of supporting component on to the cantilever crane first, does not form direct contact with the cantilever crane hydro-cylinder, not only can ensure that automobile body and vehicle-mounted personnel avoid the collision influence that the automatic pressure release trouble of cantilever crane hydro-cylinder leads to, still can avoid causing the harm to the cantilever crane hydro-cylinder simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of an embodiment of the present invention.

Fig. 2 is another view of fig. 1.

Fig. 3 is an assembly view of the limit bracket and the support member.

Fig. 4 is a specific structural schematic diagram of the limiting bracket.

Fig. 5 is a partial structural schematic view of the limiting bracket.

Fig. 6 is a detailed structural view of the raker beam.

Fig. 7 is a specific structural view of the supporting member.

Wherein, in fig. 1-7:

the device comprises an auxiliary frame-1, an oil cylinder mounting seat-2, an arm support oil cylinder-3, a limiting bracket-4 and a supporting part-5;

the connecting bottom plate-41, the support main body-42, the extension rod-43, the reinforcing cross beam-44, the diagonal bracing beam-45, the buffer layer-51 and the sealing plate-52;

a bottom connecting plate-421, a top connecting plate-431, a connecting end-432, a lower connecting plate-451 and an upper connecting plate-452.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic view of an overall structure of an embodiment of the present invention, and fig. 2 is a schematic view of another view angle of fig. 1.

In a specific embodiment provided by the present invention, the arm support limiting protection mechanism mainly comprises a limiting bracket 4 and a supporting member 5.

Wherein, spacing support 4 sets up immediately on the sub vehicle frame 1 of vehicular concrete spraying wet machine, and support component 5 sets up the top position at spacing support 4. Meanwhile, the top end of the limiting bracket 4 extends to the upper part of the auxiliary frame 1 and is positioned at the bottom of the oil cylinder mounting seat 2 erected in the area above the auxiliary frame 1, and the supporting part 5 is positioned at the bottom of the oil cylinder mounting seat 2 and is opposite to the bottom of the oil cylinder mounting seat 2.

When the automatic pressure relief fault occurs to the arm support oil cylinder 3, the arm support starts to gradually incline and drop, the oil cylinder mounting seat 2 is driven to incline and drop together, the oil cylinder mounting seat 2 is used for mounting the arm support oil cylinder 3, and the arm support oil cylinder 3 is generally mounted inside the oil cylinder mounting seat 2, so that in the process of inclining and dropping the arm support, the oil cylinder mounting seat 2 firstly forms collision insertion with a supporting component 5 at the position below the oil cylinder mounting seat, stable support is formed on the oil cylinder mounting seat 2 through the supporting component 5 and the limiting support 4, stable support is further formed on the whole arm support, and the arm support is prevented from further dropping.

Compared with the prior art, the boom limiting and protecting mechanism provided by the embodiment has the advantages that when the boom cylinder 3 has an automatic pressure relief fault, the cylinder mounting seat 2 on the boom is firstly supported through the limiting bracket 4 and the supporting part 5, and does not directly contact with the boom cylinder 3, so that a vehicle body and vehicle-mounted personnel can be prevented from being influenced by collision caused by the automatic pressure relief fault of the boom cylinder 3, and meanwhile, the boom cylinder 3 can be prevented from being damaged.

As shown in fig. 3 and 4, fig. 3 is an assembly view of the limit bracket 4 and the support member 5, and fig. 4 is a specific structural schematic view of the limit bracket 4.

In an alternative embodiment with respect to the spacing bracket 4, the spacing bracket 4 mainly comprises a connecting bottom plate 41 and a bracket main body 42. The support main body 42 is a main body structure of the limit support 4, is specifically erected on the auxiliary frame 1, has a certain height, and can be generally determined according to data such as the height of a cockpit on a vehicle body. The connecting bottom plate 41 is specifically connected to the bottom of the bracket main body 42, and is generally located on the bottom end face of the bracket main body 42, and is mainly used for being connected to the subframe 1, so as to realize stable installation of the bracket main body 42 on the subframe 1. Accordingly, the support member 5 is disposed at the top end of the holder main body 42.

Generally, in order to facilitate the mounting and dismounting operation of the limit bracket 4 on the subframe 1, in this embodiment, the connection base plate 41 is detachably connected to the subframe 1, for example, by a fastening member such as a bolt.

As shown in fig. 5, fig. 5 is a partial structural schematic view of the limiting bracket 4.

In order to facilitate the mounting of the support member 5 on the top end of the bracket body 42, in the present embodiment, an extension rod 43 is provided on the top end of the limit bracket 4. Specifically, the extension rod 43 extends obliquely in a predetermined direction and finally extends to the bottom of the cylinder mounting base 2, and accordingly, the support member 5 is disposed on the extension rod 43, such as the end position of the extension rod 43.

Generally, a certain included angle is formed between the extension rod 43 and the bracket main body 42, and the included angle can be generally in the range of 30-60 degrees, and can be specifically adjusted according to actual conditions.

In order to improve the supporting strength, in this embodiment, two bracket bodies 42 are simultaneously disposed on the subframe 1 and are respectively disposed at two side positions of the subframe 1, correspondingly, two extension rods 43 are also disposed, and two ends of the supporting member 5 are respectively connected to the two extension rods 43. With the arrangement, the arm support mounting seat is supported by the two support main bodies 42 distributed on the two sides of the auxiliary frame 1 and the support part 5 connected with the two support main bodies 42, so that the stress condition of the support part 5 can be balanced, the local stress of the support part 5 is prevented from being aggravated, and the overall support strength is improved.

In view of the same considerations, a reinforcing cross member 44 is added in this embodiment. Specifically, the reinforcing beam 44 is connected between the two bracket bodies 42, generally kept in a horizontal state, and is mainly used for reinforcing the overall structural strength of the limiting bracket 4.

As shown in fig. 6, fig. 6 is a detailed structural schematic view of the raker beam 45.

In addition, to further improve the supporting strength of the limiting bracket 4, the bracing beam 45 is additionally arranged in the embodiment. Specifically, the raker beam 45 is connected between the bracket main body 42 and the extension rod 43, and is mainly used for forming a triangular supporting structure among the three, so that the supporting strength of the limiting bracket 4 is enhanced.

Generally, in order to facilitate the assembling and disassembling operation of the raker beam 45, in this embodiment, the raker beam 45 is detachably connected with the bracket main body 42 and the extension rod 43. Specifically, in the present embodiment, the bottom connecting plate 421 is disposed on the bracket main body 42, and the top connecting plate 431 is disposed on the extension rod 43, and accordingly, the lower connecting plate 451 is disposed at the bottom of the raking beam 45, and the upper connecting plate 452 is disposed at the top of the raking beam 45, and the bottom connecting plate 421 and the lower connecting plate 451 are detachably connected, and the top connecting plate 431 and the upper connecting plate 452 are detachably connected, for example, both can be connected by a fastener such as a bolt.

As shown in fig. 7, fig. 7 is a schematic specific structural view of the supporting member 5.

In an alternative embodiment of the supporting member 5, the supporting member 5 is embodied in an arc shape, such as an arc tube, so that when the supporting member 5 collides with the cylinder mount 2, the impact force is relieved by the arc-shaped structural characteristics of the supporting member 5.

In order to facilitate the connection of the supporting member 5 on the extension rod 43, in this embodiment, a connecting end 432 is provided at a top end position of the extension rod 43, so as to install the bottom surface of the extension rod 43 through the connecting end 432, and generally, the supporting member 5 and the connecting end 432 can be connected by welding.

Further, in order to reduce damage to the support member 5 caused by the collision impact force and improve the service life, in the present embodiment, a buffer layer 51 is provided on the upper surface of the support member 5. Specifically, the buffer layer 51 may be a polyurethane layer, a rubber layer, or the like, and has certain elasticity and toughness, and may absorb collision energy through elastic deformation, thereby reducing wear and collision damage.

In addition, in consideration of the fact that the supporting member 5 has a generally tubular shape, in order to prevent corrosion by air and the influence of foreign substances, the present embodiment further provides sealing plates 52 at both ends of the supporting member 5 to seal the inner cavity of the supporting member 5.

The embodiment also provides a vehicular concrete spraying machine, mainly includes sub vehicle frame 1, erects in sub vehicle frame 1 top hydro-cylinder mount pad 2, rotationally connects the cantilever crane hydro-cylinder 3 in hydro-cylinder mount pad 2 to and set up the spacing protection machanism of cantilever crane on sub vehicle frame 1, wherein, this cantilever crane spacing protection machanism's specific content is the same with above-mentioned relevant content, and it is no longer repeated here.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a spacing protection machanism of cantilever crane, its characterized in that, including locate immediately spacing support (4) on sub vehicle frame (1), set up in support component (5) on spacing support (4) top, the top of spacing support (4) extends to erect in the bottom of hydro-cylinder mount pad (2) of sub vehicle frame (1) top, it is right when cantilever crane hydro-cylinder (3) pressure release that support component (5) are used for hydro-cylinder mount pad (2) bottom forms the support.

2. The arm support limiting and protecting mechanism according to claim 1, wherein the limiting support (4) comprises a connecting bottom plate (41) connected with the auxiliary frame (1), and a support main body (42) connected to the connecting bottom plate (41) and extending in a vertical direction, and the supporting part (5) is arranged at the top end of the support main body (42).

3. The arm support limiting and protecting mechanism of claim 2, wherein the limiting support (4) further comprises an extension rod (43) connected to the top end of the support main body (42) and extending to the bottom of the oil cylinder mounting seat (2) in a tilted manner along a preset direction, and the supporting part (5) is arranged on the extension rod (43).

4. The arm support limiting and protecting mechanism of claim 3, wherein an included angle between the extension rod (43) and the support main body (42) is 30-60 degrees.

5. The arm support limiting and protecting mechanism according to claim 3, wherein the number of the support main bodies (42) is two, and the two support main bodies are respectively arranged on two sides of the auxiliary frame (1), and the two extension rods (43) are respectively connected with two ends of the supporting component (5).

6. The arm support limiting and protecting mechanism according to claim 5, wherein the limiting support (4) further comprises a reinforcing cross beam (44) connected between the two support bodies (42) for reinforcing the structural strength.

7. The arm support limiting and protecting mechanism according to claim 3, wherein the limiting support (4) further comprises a diagonal support beam (45) connected between the support main body (42) and the extension rod (43) and used for enhancing the support strength.

8. The boom limiting and protecting mechanism as claimed in claim 1, wherein the supporting part (5) is arc-shaped to release force when contacting the cylinder mounting seat (2).

9. The arm support limiting and protecting mechanism according to claim 8, wherein a buffer layer (51) is arranged on the upper surface of the supporting part (5).

10. The vehicle-mounted concrete spraying machine comprises an auxiliary frame (1), an oil cylinder mounting seat (2) erected above the auxiliary frame (1), and an arm support oil cylinder (3) rotatably connected into the oil cylinder mounting seat (2), and is characterized by further comprising an arm support limiting protection mechanism arranged on the auxiliary frame (1), wherein the arm support limiting protection mechanism is the arm support limiting protection mechanism in any one of claims 1-9.

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