Double-sided stay wire accelerator switching mechanism of lorry-mounted crane

Abstract

The utility model discloses a double-sided stay wire accelerator switching mechanism of a lorry-mounted crane and belongs to the technical field of lorry The device is characterized by comprising two flexible shaft controllers, a mounting frame, a left rotating plate, a right rotating plate and a conversion driving frame, the two flexible shaft controllers are respectively mounted on a main operation side and an auxiliary operation side, the mounting frame is fixedly mounted on a chassis of the lorry-mounted crane, and the middle part of the mounting frame is fixedly connected with a rotating shaft; the left rotating plate, the right rotating plate and the conversion driving frame are rotationally assembled with the mounting frame through the rotating shaft, and the conversion driving frame is located between the left rotating plate and the right rotating plate; the two rotating plates are connected with two flexible shaft controllers through transmission flexible shafts correspondingly, and the conversion driving frame is connected with an accelerator through an execution flexible shaft. The two flexible shaft controllers transmit the displacement of the stay wire to the corresponding rotating plates through the transmission flexible shafts respectively, the rotating plates drive the conversion driving frame, and therefore the accelerator is driven, and the double-face stay wire and double-side accelerator acceleration functions are achieved.

Description

Technical Field

[0001] The utility model relates to a double-sided cable throttle conversion mechanism for a truck-mounted crane, belonging to the technical field of truck-mounted cranes. Background Art

[0002] Truck mounted cranes, also known as truck cranes, are mostly used in factories, docks, engineering construction and other places. There are four ways to operate a truck mounted crane: bottom operation, middle operation, high altitude operation and remote control operation. Among them, bottom operation is the ground operation form, which is operated by the operator standing on the ground. Figure 1 As shown, the operating handle is generally installed between the rear of the cab and the cargo box, on both the left and right sides (generally the left side is the auxiliary control and the right side is the main control). A remote throttle is installed next to the operating handle. The remote throttle generally uses a flexible shaft and a flexible shaft controller to adjust the throttle, which is convenient for controlling the lifting speed.

[0003] In the existing technology, the remote throttle is only installed on one side, and the operator can only increase or decrease the throttle from the main or auxiliary control. This cannot meet the need to increase or decrease the engine throttle from both the main and auxiliary control. Therefore, it is necessary to provide a conversion mechanism that can increase or decrease the engine throttle from both the main and auxiliary control. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the above-mentioned existing technologies and provide a double-sided cable throttle conversion mechanism for a truck crane. By arranging conversion mechanisms on the main and auxiliary controls, throttle acceleration can be achieved on both the left and right sides of the lower control.

[0005] The technical solution of the utility model is as follows:

[0006] A double-sided cable-pulling throttle conversion mechanism for a truck-mounted crane is characterized by comprising: two flexible shaft controllers, a mounting frame, a left rotating plate, a right rotating plate, and a conversion drive frame; the two flexible shaft controllers are respectively mounted on the main and auxiliary control sides; the mounting frame is fixedly mounted on the chassis of the truck-mounted crane, and a rotating shaft is fixedly connected to the middle portion of the mounting frame; the left and right rotating plates and the conversion drive frame are rotatably assembled with the mounting frame via the rotating shaft, and the conversion drive frame is located between the left and right rotating plates;

[0007] The two rotating plates are connected to the two flexible shaft controllers through the transmission flexible shaft, and the conversion drive frame is connected to the throttle through the execution flexible shaft; the two flexible shaft controllers transmit the wire displacement to the corresponding rotating plates through the transmission flexible shaft, and the rotating plates drive the conversion drive frame, thereby driving the throttle.

[0008] In the above solution, swinging the handle of the flexible shaft controller on the primary or secondary control side rotates the corresponding rotating plate through the core shaft of the transmission flexible shaft, which in turn triggers the movement of the conversion drive frame, driving the core shaft of the execution flexible shaft to pull the throttle adjustment lever, achieving throttle acceleration. Two flexible shaft controllers are installed on the primary and secondary control sides of the truck crane's lower control, respectively, to facilitate control from both sides. The cable displacement generated by the two flexible shaft controllers is transmitted to the throttle adjustment lever by the flexible switching mechanism, solving the problem of double-sided throttle adjustment on the truck crane's remote throttle mechanism.

[0009] Furthermore, the mounting frame is provided with side panels at each end, each with a support notch for a corresponding flexible shaft to pass through. The two transmission flexible shafts connected to the rotating plate are mounted on one side panel, while the single actuator flexible shaft connected to the throttle is mounted on the other side panel. The mounting frame's support notches are provided with support sleeves for the corresponding flexible shafts to pass through. Each support sleeve is threadedly connected to two locking nuts, one located on each side of the corresponding side panel.

[0010] In the above scheme, by setting side plates and supporting slots, two transmission flexible shafts (flexible shaft controllers connected to the main and auxiliary controls) and a single execution flexible shaft (connected to the throttle) are arranged relatively; by setting a supporting sleeve, it can play a role in supporting and fixing the corresponding flexible shafts; by setting two tightening nuts that are screwed onto the outside of the supporting sleeve and jointly clamping the side plates, the position adjustment and installation fixation of the supporting sleeve can be achieved.

[0011] Furthermore, a rotating sleeve is provided at the bottom of the two rotating plates, which is sleeved on the rotating shaft, and the top of the two rotating plates is connected to the corresponding transmission flexible shaft. The conversion drive frame is formed by vertically connecting the driving plate and the wing plate to form a cross shape; the rotating sleeve is provided at the bottom of the driving plate, which is sleeved on the rotating shaft, and the top of the driving plate is connected to the execution flexible shaft; the wing plate is divided into left and right parts by the driving plate, and the left and right parts of the wing plate are respectively located behind the left and right rotating plates.

[0012] In the above scheme, the corresponding rotating plate is pulled to rotate by the flexible shaft controller until the rotating plate contacts the corresponding area of ​​the wing plate, and the flexible shaft controller is continued to be swung to make the rotating plate pull the conversion drive frame, thereby pulling the execution flexible shaft to achieve throttle acceleration. The two rotating plates can drive the conversion drive frame simultaneously or individually.

[0013] In the utility model, flexible shaft controllers are respectively provided on the main and auxiliary operating sides of the truck crane to realize double-sided wire pulling, the mounting frame of the conversion mechanism is fixed on the sub-beam of the chassis, the execution flexible shaft connects the conversion mechanism and the chassis throttle, the two flexible shaft controllers transmit the wire pulling displacement to the single execution flexible shaft through the conversion mechanism, the single execution flexible shaft transmits it to the throttle, and the throttle is driven by the single execution flexible shaft, the installation and connection are simple and reliable, and the double-sided throttle acceleration function is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main and auxiliary operations of a truck-mounted crane in the prior art;

[0015] Figure 2 This is a schematic diagram of the structure of the conversion mechanism of the utility model;

[0016] Figure 3 This is an exploded view of the conversion mechanism of the utility model;

[0017] Figure 4 This is a schematic structural diagram of the conversion drive frame in the utility model;

[0018] Figure 5 It is a schematic diagram of a flexible shaft driver in the prior art;

[0019] In the figure: flexible shaft controller 1, mounting frame 2, rotating shaft 2-1, side plate 2-2, supporting notch 2-3, left rotating plate 3, rotating sleeve 3-1, right rotating plate 4, rotating sleeve 4-1, conversion drive frame 5, driving plate 5-1, wing plate 5-2, rotating sleeve 5-3, transmission flexible shaft 6, executive flexible shaft 7, supporting sleeve 8, and tightening nut 9. DETAILED DESCRIPTION

[0020] The double-sided cable throttle conversion mechanism of a truck-mounted crane includes: two flexible shaft controllers 1, a mounting frame 2, a left rotating plate 3, a right rotating plate 4, and a conversion drive frame 5.

[0021] like Figure 1 As shown in the figure, two flexible shaft controllers 1 are installed on the main control (right) and auxiliary control (left) sides of the vehicle crane. Figure 5 In one embodiment of the present invention, the flexible shaft controller adopts the flexible shaft controller described in the Chinese utility model "Flexible Shaft Controller with Stepped Self-locking Function" with authorization announcement number CN 204533150 U.

[0022] like Figure 2 、 Figure 3 As shown, the mounting frame 2 is fixedly installed on the chassis sub-beam of the truck crane, and the middle part of the mounting frame is fixedly connected to the rotating shaft 2-1; a rotating sleeve 3-1 is set at the bottom of the left rotating plate 3, and a rotating sleeve 4-1 is set at the bottom of the right rotating plate 4. The two rotating sleeves are sleeved on the rotating shaft, and the tops of the two rotating plates are respectively connected to the corresponding transmission flexible shafts 6.

[0023] like Figure 4As shown, the conversion drive frame 5 is composed of a drive plate 5-1 and a wing plate 5-2 connected vertically to form a cross shape; a rotating sleeve 5-3 is provided at the bottom of the drive plate, and the rotating sleeve 5-3 is sleeved on the rotating shaft 2-1. The conversion drive frame is located between the left and right rotating plates, and the top of the drive plate is connected to the execution flexible shaft 7; the wing plate is divided into left and right parts by the drive plate, and the left and right parts of the wing plate are respectively located behind the left and right rotating plates.

[0024] like Figure 2 、 Figure 3 As shown, in one embodiment of the present invention, a mounting frame is provided with side panels 2-2 at each end, each with a support slot 2-3 for a corresponding flexible shaft to pass through. Two transmission flexible shafts connected to the rotating plate are mounted on one side panel, while a single actuator flexible shaft connected to the throttle is mounted on the other side panel. The mounting frame's support slots are provided with support sleeves 8 for the corresponding flexible shafts to pass through. Each support sleeve is threadedly connected to two tightening nuts 9, one on each side of the corresponding side panel, securing the support sleeve to the side panel.

[0025] Two flexible shaft controllers are respectively set on the main and auxiliary operation sides of the truck crane, such as Figure 2 As shown, the two transmission flexible shafts 6 connecting the two flexible shaft controllers are fixed to the side plate on the left side of the mounting frame through the supporting sleeve 8, and the execution flexible shaft 7 connected to the throttle adjustment lever is fixed to the side plate on the right side of the mounting frame through the supporting sleeve 8. The two transmission flexible shafts can pull the corresponding rotating plates, and the left and right rotating plates can drive the conversion drive frame simultaneously or individually, and finally pull the execution flexible shaft, and the other end of the execution flexible shaft is fixed to the chassis throttle.

Claims

1. The double-sided cable throttle conversion mechanism of the truck crane is characterized by: include: Two flexible shaft controllers, a mounting frame, a left rotating plate, a right rotating plate, and a conversion drive frame; the two flexible shaft controllers are respectively installed on the main and auxiliary controllers, the mounting frame is fixedly mounted on the chassis of the truck crane, and the middle part of the mounting frame is fixedly connected to a rotating shaft; the left and right rotating plates and the conversion drive frame are rotatably assembled with the mounting frame through the rotating shaft, and the conversion drive frame is located between the left and right rotating plates; The two rotating plates are connected to the two flexible shaft controllers through the transmission flexible shaft, and the conversion drive frame is connected to the throttle through the execution flexible shaft; the two flexible shaft controllers transmit the wire displacement to the corresponding rotating plates through the transmission flexible shaft, and the rotating plates drive the conversion drive frame, thereby driving the throttle.

2. The double-sided cable throttle conversion mechanism for a truck-mounted crane according to claim 1 is characterized in that: The mounting frame is provided with side plates at both ends, and each side plate is provided with a supporting slot for the corresponding flexible shaft to pass through; the two transmission flexible shafts connected to the rotating plate are installed on the same side plate, and the execution flexible shaft connected to the throttle is installed on the other side plate.

3. The double-sided cable throttle conversion mechanism for a truck-mounted crane according to claim 2 is characterized in that: A supporting sleeve for the corresponding flexible shaft to pass through is provided at the supporting notch of the mounting frame. Two tightening nuts are threadedly connected to each supporting sleeve. The two tightening nuts are respectively located on both sides of the corresponding side plate.

4. The double-sided cable throttle conversion mechanism for a truck-mounted crane according to claim 3 is characterized in that: The bottoms of the two rotating plates are sleeved on the rotating shafts, and the tops of the two rotating plates are respectively connected to corresponding transmission flexible shafts.

5. The double-sided cable throttle conversion mechanism for a truck-mounted crane according to claim 4 is characterized in that: The conversion drive frame is formed by vertically connecting a driving plate and a wing plate. The bottom of the driving plate is sleeved on the rotating shaft, and the top of the driving plate is connected to the execution soft shaft. The wing plate is divided into left and right parts by the driving plate. The left and right parts of the wing plate are respectively located behind the left and right rotating plates.

6. The double-sided cable throttle conversion mechanism for a truck-mounted crane according to claim 5, characterized in that: The bottoms of the two rotating plates and the bottom of the driving plate are respectively provided with rotating sleeves, and are respectively sleeved on the rotating shafts through the rotating sleeves.

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