Pluggable shaft device and truss arm section

Abstract

The utility model discloses a shaft plugging and unplugging device and a truss arm section, the shaft plugging and unplugging device convenient for mounting and dismounting a pin shaft on the truss arm section of a crane is designed by improving a motor driving mechanism and a positioning mechanism, and in addition, the truss arm section easier to mount and dismount is designed by improving the structure of the truss arm section. As the power supply is used as power, a hydraulic system power station or a connection host power system is not needed, the system is simple, and the cost is low. Compared with hydraulic power, pipelines in the overall length range of the truss arm are omitted, and cost is low. Hydraulic power is not needed, pipelines need to be disassembled and assembled every time a truss is reached, and the efficiency is high. The whole weight can be transferred by a single person once, single-person operation is achieved, and the labor cost is low. Matched electric energy is adopted, and compared with a high-power hydraulic system power belt small-power shaft inserting and pulling oil cylinder, the utilization rate of the electric energy is obviously higher.

Description

Technical Field

[0001] The utility model relates to a shaft plugging and pulling device and a truss boom section, belonging to the technical field of crane engineering machinery. Background Art

[0002] Mobile cranes are composed of many parts. For large cranes, they need to be disassembled and transferred, and then assembled after arriving at the work site. The assembly time accounts for more than 50% of the total time. Therefore, whether the assembly can be completed conveniently, quickly and safely will affect the overall operation efficiency and at the same time affect the product's market competitiveness.

[0003] Among all the assembly operations, the most involved and difficult assembly point is the installation of the hinge pin. Various measures are taken for various hinges to continuously pursue the goals of more labor-saving, faster, safer and lower cost to meet the rapidly increasing market demand.

[0004] Specifically, when one component is connected to another component through a hinge axis, at least one of the components is lifted by a crane and placed close to the other component during installation. Since the micro-mobility of the crane is not so ideal and the weight and size of the lifted component are large, it is very difficult to move it smoothly and slowly and align it completely. In most cases, after the two hinges to be installed are roughly aligned, a manual hammer is used to knock them, which is a great consumption of human strength. The suspended component is in a floating state and may move out of place during installation, affecting the safety of the installation personnel.

[0005] Some important hinges use hydraulic power instead of manpower, including two existing technologies: main engine hydraulic power system + hydraulic shaft pulling device, and mobile hydraulic power station + hydraulic shaft pulling device.

[0006] Among them, the main engine hydraulic power system + hydraulic shaft pulling device includes the following problems:

[0007] 1) It is necessary to repeatedly dismantle and install the pipeline, which is inefficient.

[0008] 2) The total length of the two pipes is 100 meters, with multiple sets of plug connectors, which is costly and heavy.

[0009] 3) When using the main engine power, the main engine needs to be always on during the entire installation process. The main engine power system has large functions, and there is a lot of residual power for the shaft pulling cylinder, which is not economical to use.

[0010] 4) There are many plug-in interfaces, which inevitably causes hydraulic oil contamination.

[0011] Mobile hydraulic power station + hydraulic shaft pulling device, including the following issues:

[0012] 1) A dedicated mobile hydraulic power station is required, which is costly.

[0013] 2) Mobile hydraulic power stations are difficult to move in non-hardened areas. If they are powered, the cost will be higher.

[0014] 3) The mobile hydraulic power station requires at least one person to operate, and at least one person on the bridge boom section. At least one end of the pipeline needs to be removed each time it is transferred to facilitate crossing different boom sections, which affects efficiency.

[0015] Because, in order to solve the installation problem of the crane truss boom section in the prior art, the technical personnel in this field urgently need to improve the existing installation tools and the structure of the truss boom section. Utility Model Content

[0016] Purpose: In order to overcome the deficiencies in the prior art, the utility model provides a shaft plugging and unplugging device and a truss arm section.

[0017] Technical solution: To solve the above technical problems, the technical solution adopted by the utility model is:

[0018] In a first aspect, a first embodiment of a shaft plugging and unplugging device includes: a linear actuator, wherein the linear actuator includes: a main body, a screw rod, and a slider, wherein a screw rod is arranged in the main body through a bearing, a slider is movably connected to the screw rod, a driven wheel is arranged at one end of the screw rod, and the slider is connected to one end of the telescopic rod.

[0019] The other end of the telescopic rod is connected with a hanging interface, and the main body is provided with a driving mechanism, which is configured as an electric motor, and a driving wheel at the output end of the rotating shaft of the electric motor is connected with a driven wheel through a transmission mechanism.

[0020] The power source is connected to the electric motor via a connecting line.

[0021] A fixing component is arranged at one end of the main body.

[0022] As a preferred solution, it further comprises: a handle, and the main body is provided with a handle.

[0023] As a preferred solution, the hanging interface includes: a connecting seat, a sleeve, one end of the connecting seat is connected to the bottom of the sleeve, a nut slot is provided on one side of the sleeve, and the connecting seat is connected to the free end of the telescopic rod by a bolt.

[0024] As a preferred solution, the power source is configured as a battery or an external power source.

[0025] In the second aspect, a shaft plugging and unplugging device includes: a bidirectional linear actuator, the bidirectional linear actuator includes: a bidirectional body, a first screw rod, a second screw rod, a first slider, and a second slider. The first screw rod and the second screw rod are arranged in the bidirectional body through bearings. The first screw rod and the second screw rod are respectively connected to the two sides of the driven wheel. The first slider is movably connected to the first screw rod, and the second slider is movably connected to the second screw rod. The first slider is connected to one end of the first telescopic rod, and the second slider is connected to one end of the second telescopic rod.

[0026] The other end of the first telescopic rod is connected to a first hanging interface, the other end of the second telescopic rod is connected to a second hanging interface, and the bidirectional main body has a driving mechanism, the driving mechanism is configured as an electric motor, and the driving wheel at the output end of the motor's rotating shaft is connected to the driven wheel through a transmission mechanism.

[0027] The power source is connected to the electric motor through a connecting line.

[0028] A first fixing component is arranged in the middle of the bidirectional body.

[0029] The first screw rod is configured as a positive screw rod, and the second screw rod is configured as a negative screw rod.

[0030] As a preferred solution, it further comprises: a handle, and the bidirectional body is provided with a handle.

[0031] As a preferred solution, the first hanging interface includes: a first connecting seat, a first sleeve, one end of the first connecting seat is connected to the bottom of the first sleeve, a first nut slot is provided on one side of the first sleeve, and the first connecting seat is connected to the free end of the first telescopic rod by a bolt.

[0032] The second hanging interface includes: a second connecting seat, a second sleeve, one end of the second connecting seat is connected to the bottom of the second sleeve, a second nut slot is provided on one side of the second sleeve, and the second connecting seat is connected to the free end of the second telescopic rod through a bolt.

[0033] As a preferred solution, the power source is configured as a battery or an external power source.

[0034] As a preferred solution, the first fixing component is configured as a clamping plate.

[0035] In the third aspect, a truss boom section comprises: a frame body, connecting heads are arranged at both ends of the frame body, and a telescopic rod bracket, a plug-in shaft device mounting frame, and a power source support frame are arranged in sequence on one side of the connecting head on the cross beam at the end of the frame body, and the plug-in shaft device mounting frame is connected to the fixing part of the plug-in shaft device of the first aspect.

[0036] In a fourth aspect, a truss boom section comprises: a frame body, connecting heads are arranged at both ends of the frame body, a plug-in shaft device mounting frame is arranged in the middle of the cross beam at the end of the frame body, telescopic rod brackets are arranged on the cross beams on both sides of the plug-in shaft device mounting frame, and the cross beam is also provided with a power source support frame, and the plug-in shaft device mounting frame is connected to the first fixing component of the plug-in shaft device of the second aspect.

[0037] As a preferred solution, the mounting bracket of the plug-in / pull-out shaft device is configured as a groove-shaped bracket.

[0038] Beneficial effects: The utility model provides a shaft plug-in and pull-out device and a truss boom section. By improving the motor drive mechanism and the positioning mechanism, a shaft plug-in and pull-out device is designed that is convenient for installing and removing the pin shaft on the crane truss boom section. In addition, by improving the structure of the truss boom section, a truss boom section that is easier to install and disassemble is designed.

[0039] Compared with the prior art, the utility model has the following advantages:

[0040] (1) Since the power source is used, there is no need for a hydraulic system power station or connection to the host power system, so the system is simple and low-cost.

[0041] (2) Compared with hydraulic power, it eliminates the need for pipelines throughout the entire length of the truss arm, which is low in cost.

[0042] (3) It does not require hydraulic power to dismantle and install pipes at each truss section, which is highly efficient.

[0043] (4) The entire weight can be transferred by one person at a time, and can be operated by one person, with low labor costs.

[0044] (5) The use of matching electric energy has a significantly higher utilization rate of electric energy compared to a high-power hydraulic system with a low-power plug-in shaft cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of the first embodiment of the shaft plugging and unplugging device of the utility model.

[0046] Figure 2 It is a cross-sectional schematic diagram of a first embodiment of the shaft plugging and unplugging device of the utility model.

[0047] Figure 3 It is a schematic diagram of the structure of the hanging interface in the first embodiment.

[0048] Figure 4 It is a cross-sectional schematic diagram of a second embodiment of the shaft plugging and unplugging device of the utility model.

[0049] Figure 5 Schematic diagram of the structure of the first hanging interface in the second embodiment.

[0050] Figure 6 Schematic diagram of the structure of the second hanging interface in the second embodiment.

[0051] Figure 7 It is a structural schematic diagram of a first embodiment of a truss boom section of the utility model.

[0052] Figure 8 It is a partial enlarged view of the first embodiment A of the truss arm section.

[0053] Fig. 9 It is a structural diagram of the hinge axis. DETAILED DESCRIPTION

[0054] The following is a clear and complete description of the technical solutions in the examples of the utility model in conjunction with the drawings in the examples of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the utility model.

[0055] The present invention will be further described below in conjunction with specific embodiments.

[0056] Embodiment 1:

[0057] like Figure 1 As shown, this embodiment introduces a first embodiment of a shaft plugging and unplugging device, including: a linear actuator 1, a driving mechanism 2, a power source 3, a connecting line 4, a hanging interface 5, and a fixing component 6.

[0058] like Figure 2 As shown, the linear actuator 1 includes: a main body 101, a screw rod 102, and a slider 103. The screw rod 102 is arranged in the main body 101 through a bearing 104, and the slider 103 is movably connected to the screw rod 102. A driven wheel is arranged at one end of the screw rod 102, and the slider 103 is connected to one end of a telescopic rod 105.

[0059] The other end of the telescopic rod 105 is connected to a hanging interface 5, and the main body 101 is provided with a driving mechanism 2, which is set as an electric motor. The driving wheel at the output end of the motor's rotating shaft is connected to the driven wheel through a transmission belt 106. The transmission belt can be replaced by other transmission methods such as gears, and when the driving mechanism is arranged at the tail end of the linear actuator, the transmission belt can be used or omitted. In the case of omission, the driving mechanism and the screw rod will be directly connected. In the specific design, it is necessary to calculate the transmission ratio according to the output load and speed requirements, and adopt a suitable transmission method based on comprehensive factors such as cost and space layout.

[0060] The power source 3 is connected to the electric motor via a connecting line 4 .

[0061] A fixing component 6 is disposed at one end of the main body 101 .

[0062] Furthermore, it also includes a handle 7, and the main body 101 is provided with a handle 7 to facilitate the operator to lift and transfer.

[0063] like Figure 3 As shown, further, the hanging interface 5 includes: a connecting seat 501, a sleeve 502, one end of the connecting seat 501 is connected to the bottom of the sleeve 502, a nut slot 503 is provided on one side of the sleeve 502, and the connecting seat 501 is connected to the free end of the telescopic rod 105 through a bolt.

[0064] Furthermore, the power source 3 is configured as a battery, which is convenient to carry, or other external power source, and the voltage is generally set to 12V-60V.

[0065] Embodiment 2:

[0066] like Figure 4 As shown, this embodiment introduces a second embodiment of a shaft plugging and unplugging device, including: a bidirectional linear actuator 8.

[0067] Among them, the bidirectional linear actuator 8 includes: a bidirectional body 801, a first screw rod 802, a second screw rod 803, a first slider 804, and a second slider 805. The first screw rod 802 and the second screw rod 803 are arranged in the bidirectional body 801 through a bearing 806. The first screw rod 802 and the second screw rod 803 are respectively connected to the two sides of the driven wheel. The first slider 804 is movably connected to the first screw rod 802, and the second slider 805 is movably connected to the second screw rod 803. The first slider 804 is connected to one end of the first telescopic rod 807, and the second slider 805 is connected to one end of the second telescopic rod 808.

[0068] The other end of the first telescopic rod 807 is connected to a first hanging interface 9, and the other end of the second telescopic rod 808 is connected to a second hanging interface 10. The bidirectional body 801 has a driving mechanism 2, and the driving mechanism 2 is configured as an electric motor. The driving wheel at the output end of the motor's rotating shaft is connected to the driven wheel through a transmission belt 809.

[0069] The power source is connected to the electric motor through a connecting line.

[0070] A first fixing component 11 is disposed in the middle of the bidirectional body 801 .

[0071] The first screw rod 802 is configured as a positive screw rod, and the second screw rod 803 is configured as a negative screw rod.

[0072] Furthermore, it also includes a handle 7, and the bidirectional body 801 is provided with a handle 7 to facilitate the operator to lift and transfer.

[0073] like Figure 5 As shown, the first hanging interface 9 includes: a first connecting seat 901, a first sleeve 902, one end of the first connecting seat 901 is connected to the bottom of the first sleeve 902, a first nut slot 903 is provided on one side of the first sleeve 902, and the first connecting seat 901 is connected to the free end of the first telescopic rod 807 through a bolt.

[0074] like Figure 6 As shown, the second hanging interface 10 includes: a second connecting seat 1001, a second sleeve 1002, one end of the second connecting seat 1001 is connected to the bottom of the second sleeve 1002, a second nut slot 1003 is provided on one side of the second sleeve 1002, and the second connecting seat 1001 is connected to the free end of the second telescopic rod 808 through bolts.

[0075] Furthermore, the power source 3 is configured as a battery, which is convenient to carry, or other external power source, and the voltage is generally set to 12V-60V.

[0076] Furthermore, the first fixing component 11 is configured as a clamping plate.

[0077] Embodiment 3:

[0078] like Figure 7 As shown, this embodiment introduces a first embodiment of a truss arm section, including: a frame body 12.

[0079] like Figure 8 As shown, connecting heads 13 are arranged at both ends of the frame body 12, and a telescopic rod bracket 15, a plug-in shaft device mounting frame 16, and a power source support frame 17 are arranged in sequence on one side of the connecting head 13 on the cross beam 14 at the end of the frame body 12, and the plug-in shaft device mounting frame 16 is connected to the fixing component 6 of the first embodiment of the plug-in shaft device.

[0080] Embodiment 4:

[0081] This embodiment introduces a second embodiment of a truss boom section, including: a frame body.

[0082] Among them, connecting heads are arranged at both ends of the frame, a plug-in shaft device mounting frame is arranged in the middle of the cross beam at the end of the frame, telescopic rod brackets are arranged on the cross beams on both sides of the plug-in shaft device mounting frame, and the cross beam is also provided with a power source support frame, and the plug-in shaft device mounting frame is connected to the first fixing component 11 of the second embodiment of the plug-in shaft device.

[0083] Furthermore, the mounting bracket of the plug-in / pull-out shaft device is configured as a groove-shaped bracket.

[0084] When the distance between the left and right hinges in the width direction of the truss is not large, the main body of the linear actuator is arranged symmetrically, and one power source and one drive mechanism drive two sets of telescopic rods, so that the left and right hinge shafts on the same axis can be plugged in and out simultaneously.

[0085] Embodiment 5:

[0086] When installing the truss boom section, first install the plug-in shaft device on the plug-in shaft device mounting frame of the truss boom section, then clamp the four connectors at the head and tail of the two truss boom sections together, align the hinge point holes, and fix the hinge point shaft on the hanging interface of the plug-in shaft device, such as Fig. 9 As shown, the hinge shaft 18 includes: a bolt head 1801, a shaft body 1802, and the hinge shaft is inserted into a sleeve with a nut slot through the bolt head 1801. When the power is connected, the driving mechanism is started, and as the telescopic rod is extended, the hinge shaft is pushed into the hole to lock the connector. Replace with other connectors, and complete the installation of four connectors in sequence. The installation process of more trusses is the same.

[0087] The weight of the plug-in shaft device can be controlled within 10 kg, and one person can complete the installation and disassembly of the shafts at various hinge points.

[0088] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A shaft plugging and unplugging device, characterized in that: include: The linear actuator comprises: a main body, a screw rod, and a slider. The main body is provided with a screw rod through a bearing, the screw rod is movably connected to the slider, a driven wheel is provided at one end of the screw rod, and the slider is connected to one end of the telescopic rod; The other end of the telescopic rod is connected to a hanging interface, and the main body is provided with a driving mechanism, which is set as an electric motor, and the driving wheel at the output end of the rotating shaft of the electric motor is connected to the driven wheel through a transmission mechanism; The power source is connected to the electric motor via a connecting line; A fixing component is arranged at one end of the main body.

2. The shaft plugging and unplugging device according to claim 1, characterized in that: Also includes: A handle is provided on the main body.

3. The shaft plugging and unplugging device according to claim 1, characterized in that: The hanging interface comprises: a connecting seat and a sleeve, one end of the connecting seat is connected to the bottom of the sleeve, one side of the sleeve is provided with a nut slot, and the connecting seat is connected to the free end of the telescopic rod through a bolt.

4. The shaft plugging and unplugging device according to claim 1, characterized in that: The power source is configured as a battery or an external power source.

5. A shaft plugging and unplugging device, characterized in that: include: A bidirectional linear actuator, the bidirectional linear actuator comprising: a bidirectional body, a first screw rod, a second screw rod, a first slider, and a second slider, wherein the first screw rod and the second screw rod are arranged in the bidirectional body through bearings, the first screw rod and the second screw rod are respectively connected to both sides of the driven wheel, the first screw rod is movably connected to the first slider, the second screw rod is movably connected to the second slider, the first slider is connected to one end of the first telescopic rod, and the second slider is connected to one end of the second telescopic rod; The other end of the first telescopic rod is connected to a first hanging interface, the other end of the second telescopic rod is connected to a second hanging interface, the bidirectional body is provided with a driving mechanism, the driving mechanism is provided as a motor, and the driving wheel at the output end of the rotating shaft of the motor is connected to the driven wheel through a transmission mechanism; The power source is connected to the electric motor via a connecting line; A first fixing component is provided in the middle of the bidirectional body; The first screw rod is configured as a positive screw rod, and the second screw rod is configured as a negative screw rod.

6. The shaft plugging and unplugging device according to claim 5, characterized in that: Also includes: A handle is provided on the bidirectional body.

7. The shaft plugging and unplugging device according to claim 5, characterized in that: The first hanging interface includes: a first connecting seat, a first sleeve, one end of the first connecting seat is connected to the bottom of the first sleeve, one side of the first sleeve is provided with a first nut slot, and the first connecting seat is connected to the free end of the first telescopic rod through a bolt; The second hanging interface includes: a second connecting seat, a second sleeve, one end of the second connecting seat is connected to the bottom of the second sleeve, a second nut slot is provided on one side of the second sleeve, and the second connecting seat is connected to the free end of the second telescopic rod through a bolt.

8. The shaft plugging and unplugging device according to claim 5, characterized in that: The power source is configured as a battery or an external power source.

9. A truss boom section, characterized in that: include: A frame body, connecting heads are arranged at both ends of the frame body, and a telescopic rod bracket, a plug-in shaft device mounting frame, and a power source support frame are arranged in sequence on one side of the connecting head on the cross beam at the end of the frame body, and the plug-in shaft device mounting frame is connected to the fixing part of the plug-in shaft device described in any one of claims 1 to 4.

10. A truss boom section, characterized in that: include: A frame body, connecting heads are arranged at both ends of the frame body, a plug-in shaft device mounting frame is arranged in the middle of the cross beam at the end of the frame body, telescopic rod brackets are arranged on the cross beams on both sides of the plug-in shaft device mounting frame, and the cross beam is also provided with a power source support frame, and the plug-in shaft device mounting frame is connected to the first fixing component of the plug-in shaft device described in any one of claims 5 to 8.

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