阅读说明：本技术 一种汽车起重机支腿操纵装置 (Automobile crane supporting leg operating device ) 是由 李学武 贾宏飞 黄心顺 李亚军 于 2019-12-03 设计创作，主要内容包括：一种汽车起重机支腿操纵装置,包括液压多路阀体、主操纵装置、副操纵装置,液压多路阀体前后叠置,主操纵装置与阀体直连,副操纵装置通过第一铰接座铰接的拉杆与阀体相连,每个拉杆远离连接杆的一侧均通过第二铰接座与阀体连接,拉杆下方还设有两个托架装置,托架装置均包括支撑块和安装架,支撑块为前后走向的长条形块体,支撑块上设有通孔,安装架包括前后走向的长条形板,长条形板与支撑块相贴靠,长条形板上设有竖向腰圆形孔,支撑块、长条形板通过螺栓、螺母连接,安装架与汽车起重机车架固接,拉杆下侧与支撑块上侧相贴靠。本装置使得阀芯受力较小,能避免损坏漏油等故障,且拉杆端部受力较小,能避免断裂故障,可靠性较高。(The utility model provides a mobile crane landing leg controlling device, including hydraulic pressure multichannel valve body, main controlling device, vice controlling device, superpose around the hydraulic pressure multichannel valve body, main controlling device directly links with the valve body, vice controlling device links to each other with the valve body through the articulated pull rod of first articulated seat, one side that the connecting rod was kept away from to every pull rod all is connected with the valve body through the articulated seat of second, the pull rod below still is equipped with two bracket devices, bracket device all includes supporting shoe and mounting bracket, the rectangular shape block that the supporting shoe moves towards around being, be equipped with the through-hole on the supporting shoe, the mounting bracket is including the rectangular shape board that moves towards around, the rectangular shape board pastes with the supporting shoe and leans on mutually, be equipped with vertical oval hole on the rectangular shape board, the supporting shoe, the rectangular shape board passes through the bolt. This device makes the case atress less, can avoid damaging the trouble such as oil leak, and the pull rod tip atress is less, can avoid fracture trouble, and the reliability is higher.)

1. The utility model provides a mobile crane landing leg controlling device, including hydraulic pressure multichannel valve body, main controlling device, vice controlling device, superpose around the hydraulic pressure multichannel valve body, main controlling device directly links with the valve body one-to-one, vice controlling device includes the handle, the handle is connected on a sleeve, the sleeve cup joints on the axis body of trend around one, the sleeve downside still is equipped with the vertical connecting rod of arranging, the connecting rod upside links to each other with the sleeve, the connecting rod downside is connected with a level through first articulated seat and arranges and transversely run through the pull rod of frame, the articulated shaft trend of first articulated seat is preceding to back, its characterized in that: one side of each pull rod, which is far away from the connecting rod, is connected with the valve body through a second hinged seat, the direction of a hinged shaft of the second hinged seat is in the front-back direction, two bracket devices which are horizontally arranged are also arranged below the pull rod, each bracket device comprises a supporting block and a mounting frame, the supporting block is a long strip-shaped block body in the front-back direction, at least two through holes which are vertically arranged in the front-back direction and penetrate through the supporting block in the left-right direction are arranged on the supporting block, the mounting frame comprises a long strip-shaped plate which is vertically arranged in the front-back direction and is in the front-back direction, the long strip-shaped plate is attached to the left side or the right side of the supporting block, a vertical oval hole matched with the through hole is arranged at the, the nut is connected, the mounting bracket is fixedly connected with the frame of the automobile crane, and the lower side of the pull rod is attached to the upper side of the supporting block.

2. The crane leg operating device as claimed in claim 1, wherein: and bending parts which are bent towards one side far away from the supporting block are arranged on two sides of each strip-shaped plate in the length direction.

3. The crane leg operating device as claimed in claim 1, wherein: the pull rod is in threaded connection with the first hinged seat and the second hinged seat, and the thread turning directions of the two sides of the pull rod are opposite.

4. The crane leg operating device as claimed in claim 1, wherein: the supporting block is made of nylon.

5. The crane leg operating device as claimed in claim 1, wherein: the pull rod is a hollow pipe body.

Technical Field

The invention relates to a support leg operating device of an automobile crane.

Background

The support leg operating devices of the automobile crane are positioned on two sides of the vehicle, and operators can operate the support leg operating devices on the two sides of the vehicle. Referring to fig. 1 and 2, the hydraulic multi-way valve is a control element for controlling the extension and retraction of the crane support leg, and an operator can extend and retract the support leg by operating the main operating device 2 or the auxiliary operating device 3 on both sides of the vehicle. The main control device 2 is directly connected with the hydraulic multi-way valve body 1, the auxiliary control device 3 comprises a handle 31, the handle 31 is connected onto a sleeve 33, the sleeve 33 is sleeved on a shaft body 32 moving forward and backward, the lower side of the sleeve 33 is also provided with a vertical connecting rod 34 arranged, the upper side of the connecting rod 34 is connected with the sleeve 33, the lower side of the connecting rod 34 is connected with a pull rod 4 which is horizontally arranged and transversely penetrates through a frame through a first hinged seat 42, the direction of a hinge shaft of the first hinged seat 42 is forward and backward, and the other end of the pull rod 4 is connected with the other end of the hydraulic multi-way valve.

Disclosure of Invention

The technical problem to be solved by the invention is to provide the support leg operating device for the automobile crane, the valve core of the support leg operating device is under small stress, the faults such as oil leakage and the like can be avoided, the end part of the pull rod is under small stress, the fracture fault can be avoided, and the reliability is high.

In order to solve the technical problems, the invention provides a supporting leg operating device of an automobile crane, which comprises a hydraulic multi-way valve body, a main operating device and an auxiliary operating device, wherein the hydraulic multi-way valve body is superposed front and back, the main operating device and the valve body are connected in a one-to-one correspondence manner, the auxiliary operating device comprises a handle, the handle is connected to a sleeve, the sleeve is sleeved on a shaft body in the front and back direction, the lower side of the sleeve is also provided with a vertically arranged connecting rod, the upper side of the connecting rod is connected with the sleeve, the lower side of the connecting rod is connected with a horizontally arranged pull rod which transversely penetrates through a frame through a first hinging seat, the direction of a hinging shaft of the first hinging seat is front and back, one side of each pull rod, which is far away from the connecting rod, is connected with the valve body through a second hinging seat, the direction of the hinging shaft of the second hinging seat is, the supporting shoe is the rectangular shape block of trend around being, interval arrangement and along controlling to the through-hole that runs through the supporting shoe around being equipped with at least two on the supporting shoe, the mounting bracket includes a vertical rectangular shape board of arranging and trend around and, rectangular shape board pastes with supporting shoe left side or right side mutually and leans on, every through-hole department that corresponds the supporting shoe on the rectangular shape board position all is equipped with the vertical oval hole of through-hole assorted, the supporting shoe, rectangular shape board through with through-hole and oval hole assorted bolt, the nut is connected, mounting bracket and mobile crane frame rigid coupling, the pull rod downside pastes with the supporting shoe upside mutually and leans on.

For the sake of simplicity, the following description of the present invention will be referred to as the present device for the operation of the outrigger of the crane truck.

The device has the advantages that: the pull rod and the valve body of the device are connected through the second hinge seat, so that the stress state of the valve core and the end part of the pull rod can be improved, the stress of the valve core is small, faults such as oil leakage can be avoided being damaged, the stress of the end part of the pull rod is small, fracture faults can be avoided, the reliability is high, the bracket device is added to support the pull rod, the stress of the joint of the two ends of the pull rod is reduced, the stress state of the valve core is further reduced, the operation comfort can be improved, and the operation of an operator is smooth.

In order to achieve better using effect of the device, the preferred scheme is as follows:

preferably, both sides of each elongated plate in the length direction are provided with bending parts which are bent towards one side far away from the supporting block.

The mounting frame can be more conveniently fixed on the frame through the bending part, and the structure of the mounting frame is more stable.

Preferably, the pull rod is in threaded connection with the first hinged seat and the second hinged seat, and the thread turning directions of the two sides of the pull rod are opposite.

The screw thread turning directions at the two ends of the pull rod are opposite, namely, the pull rod is rotated leftwards and rightwards respectively, a structure similar to a turn buckle is formed, and under the condition that the first hinged seat and the second hinged seat are fixed, the length of the pull rod assembly can be adjusted by rotating the pull rod, so that the parallel and level of each handle of the auxiliary operating device are guaranteed.

Preferably, the supporting block is made of nylon.

The nylon material is favorable for the pull rod to slide, and can reduce the abrasion of the pull rod and the supporting block.

Preferably, the pull rod is a hollow pipe body.

The pull rod adopts a hollow pipe body, so that the weight can be reduced, and the operation is facilitated.

Drawings

Fig. 1 is a schematic view of a prior art structure.

Fig. 2 is a partially enlarged view of a portion a of fig. 1.

Fig. 3 is a schematic structural view of the present apparatus.

Fig. 4 is a partial schematic view of the connection between the pull rod and the valve body of the device.

Fig. 5 is a schematic structural view of the pull rod of the device.

Fig. 6 is a schematic view of the structure of the cradle device in the present device.

Detailed Description

Referring to fig. 3-6, a supporting leg operating device for an automobile crane comprises a hydraulic multi-way valve body 1, a main operating device 2 and an auxiliary operating device 3, wherein the hydraulic multi-way valve body 1 is overlapped front and back, the main operating device 2 is directly connected with the valve body 1 in a one-to-one correspondence manner, the auxiliary operating device 3 comprises a handle 31, the handle 31 is connected onto a sleeve 33, the sleeve 33 is sleeved on a shaft body 32 moving front and back, a connecting rod 34 vertically arranged is further arranged on the lower side of the sleeve 33, the upper side of the connecting rod 34 is connected with the sleeve 33, a pull rod 4 horizontally arranged and transversely penetrating through a frame is connected to the lower side of the connecting rod 34 through a first hinge seat 42, and the pull. The articulated shaft trend of first articulated seat 42 is preceding backward, one side that connecting rod 34 was kept away from to every pull rod 4 all is connected with valve body 1 through the articulated seat 41 of second, and the articulated shaft trend of the articulated seat 41 of second is preceding backward, pull rod 4 and first articulated seat 42 and the articulated seat 41 of second be threaded connection, and the screw thread of pull rod 4 both sides is turned to opposite. Two bracket devices 5 which are arranged at left and right intervals are further arranged below the pull rod 4, each bracket device 5 comprises a supporting block 51 and an installation frame 52 which are horizontally arranged, the supporting block 51 is a long-strip-shaped block body which moves forwards and backwards, and the supporting block 51 is made of nylon. Be equipped with two at least intervals around and around on the supporting shoe 51 and along controlling to the through-hole 511 that runs through supporting shoe 51, mounting bracket 52 includes a vertical rectangular shape board 521 who arranges and move towards from beginning to end, rectangular shape board 521 pastes with supporting shoe 51 left side or right side mutually and leans on, every through-hole 511 department that corresponds supporting shoe 51 on the rectangular shape board 521 position all is equipped with the vertical oval hole 522 with through-hole 511 assorted, supporting shoe 51, rectangular shape board 521 are through the bolt, nut connection (bolt, nut are not shown in the figure) with through-hole 511 and oval hole 522 assorted, every rectangular shape board 521 length direction both sides all be equipped with the portion of bending 523 of one side bending far away from supporting shoe 51. The mounting frame 52 is fixedly connected with the frame of the automobile crane, and the lower side of the pull rod 4 is attached to the upper side of the supporting block 51.

The device has the advantages that: the pull rod 4 of this device is connected through the articulated seat 41 of second with valve body 1, valve body 1 and the 4 tip stress state of pull rod can be improved like this, valve body 1 atress is less, can avoid damaging the trouble such as oil leakage, the 4 tip atress of pull rod is less, can avoid fracture failure, the reliability is higher, it is used for supporting pull rod 4 to increase bracket device 5, reduce the 4 both ends junctions atress of pull rod, valve body 1 stress state has further been reduced, can improve simultaneously and control the travelling comfort, it is more smooth and easy when making operating personnel control.

The mounting frame 52 can be more conveniently fixed on the frame through the bending part 523, and the structure of the mounting frame 52 is more stable.

The screw thread direction of the two ends of the pull rod 4 is opposite, namely, the two ends are respectively in left-hand rotation and right-hand rotation, a structure similar to a turn buckle is formed, and under the condition that the first hinging seat 42 and the second hinging seat 41 are fixed, the length adjustment of the pull rod 4 assembly can be realized by rotating the pull rod 4, so that the handles 31 of the auxiliary operating device 3 are flush.

The nylon material is beneficial to the sliding of the pull rod 4, and can reduce the abrasion of the pull rod 4 and the supporting block 51.

The pull rod 4 adopts a hollow pipe body, so that the weight can be reduced, and the operation is facilitated.