Transmission shaft system hoisting tool

Abstract

The utility model relates to the technical field of transmission maintenance, and provides a transmission shaft system hoisting tool which comprises a supporting plate, and a main shaft connecting assembly, an auxiliary shaft connecting assembly and a shifting fork connecting assembly capable of clamping and fixing the top of a shifting fork are fixed to the supporting plate. The main shaft connecting assembly comprises a hook device and a main shaft sheath fixed on the supporting plate and used for sleeving the end part of the main shaft, the hook device comprises a pull rod with an external thread at the upper part, the pull rod is vertically arranged, a hook is fixed at the bottom end of the pull rod, and the top end of the pull rod upwards penetrates through the supporting plate and is sleeved with a rotating nut matched with the external thread of the pull rod; the countershaft connecting assembly comprises a countershaft sheath used for sleeving the end of the countershaft and a connecting bolt located at the top of the countershaft sheath and in threaded connection with the countershaft sheath. The connecting bolt is vertically arranged, and the threaded end of the connecting bolt can be matched with and locked with a threaded hole in the end of the countershaft. Comprising. The lifting device has the beneficial effects that the shifting fork can be synchronously and fixedly lifted while the main shaft and the auxiliary shaft are lifted, so that the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission maintenance, and in particular to a transmission shaft system hoisting tool. Background Art

[0002] During the inspection of the transmission, the main shaft and the counter shaft need to be hoisted out to the designated location to check the wear of the gears, etc. Since the main shaft and the counter shaft cannot be directly hoisted by a hoisting machine, it is necessary to use tools to fix the main and counter shafts first, and then various hoisting machines are used to lift the hoisting tools.

[0003] However, during the lifting process, the main shaft and the shift fork are fixed together. If only the main shaft is lifted, the shift fork needs to be removed in advance, and then installed after the inspection is completed, which adds many unnecessary steps and greatly affects work efficiency. Utility Model Content

[0004] The utility model provides a transmission shaft system hoisting tool, which can hoist the main shaft and the secondary shaft while simultaneously fixing and hoisting the shift fork, thereby improving the maintenance efficiency.

[0005] To this end, the technical solutions adopted are as follows:

[0006] A transmission shaft system lifting tool for lifting the main shaft and secondary shaft of the transmission, comprising a horizontally arranged supporting plate, a lifting assembly being fixed on the top of the supporting plate, and a main shaft connecting assembly, a secondary shaft connecting assembly and a fork connecting assembly capable of clamping and fixing the top of the shift fork are also fixed on the supporting plate; wherein, the main shaft connecting assembly comprises a puller and a main shaft sleeve fixed on the supporting plate for being sleeved on the end of the main shaft, the puller comprises a pull rod with an external thread on the upper portion, the pull rod is vertically arranged, a puller is fixed at the bottom end thereof, the top end passes through the supporting plate upward and is sleeved with a rotating nut matching its external thread; the secondary shaft connecting assembly comprises a secondary shaft sleeve for being sleeved on the end of the secondary shaft and a connecting bolt located at the top of the secondary shaft sleeve and threadedly connected thereto, the connecting bolt is vertically arranged and its threaded end can match and lock with the threaded hole at the end of the secondary shaft.

[0007] A further technical solution is that a rotating disk is sleeved on the pull rod, the rotating disk is located between the rotating nut and the support plate and is rotatably connected to the support plate through a bearing, a strip groove is opened on the side wall of the pull rod along its axial direction, and a locking bolt is passed through the side wall of the rotating disk which can extend into the strip groove and lock.

[0008] A further technical solution is that a connecting plate is fixed on one side of the rotating disk, a vertically arranged limiting stud is threadedly connected to the connecting plate, a reinforcing plate fixed to the supporting plate is sleeved on the outer side of the rotating disk, a plurality of limiting holes distributed in a circular array are opened on the reinforcing plate, and the limiting stud can be inserted into any limiting hole as the rotating disk rotates.

[0009] A further technical solution is that a limit pin is fixed at the bottom of the rotating disk, and an arc-shaped hole is opened on the supporting plate. The limit pin is inserted into the arc-shaped hole and can move inside the arc-shaped hole as the rotating disk rotates. When the limit pin is located at one end of the arc-shaped hole, the hook is located at the working position to hook the gear of the main shaft. When the limit pin is located at the other end of the arc, the hook rotates 90° to one side from the working position.

[0010] A further technical solution is that the fork connecting assembly includes a fixed plate and an extrusion plate, the fixed plate is vertically arranged and fixed to the supporting plate, the extrusion plate is rotatably connected to the supporting plate via a rotating shaft, and an extrusion bolt is connected to the supporting plate, and the extrusion bolt can rotate to make the extrusion plate move closer to or away from the fixed plate.

[0011] A further technical solution is that the extrusion plate includes an extrusion plate 1 and an extrusion plate 2 fixed at right angles, the extrusion plate 1 is in contact with the extrusion bolt, and can gradually approach or move away from the fixed plate as the extrusion bolt rotates.

[0012] A further technical solution is that the lifting assembly includes two connecting seats fixed to the support plate, a horizontally arranged lifting support rod is fixed between the two connecting seats, a lifting connector is slidably connected to the lifting support rod, and a lifting hole is opened on the lifting connector.

[0013] A further technical solution is that a protective cover is fixed to the outside of the pull rod.

[0014] A further technical solution is that a rotating handle is fixed on the rotating disk.

[0015] The working principle and beneficial effects of this application are:

[0016] 1. Through the main shaft connection assembly and the secondary shaft connection assembly, the main shaft and the secondary shaft can be lifted and placed in the designated position for maintenance to meet the lifting requirements of the main shaft and the secondary shaft.

[0017] 2. While hoisting the main shaft and the secondary shaft, the shift fork can be hoisted through the shift fork connecting assembly, avoiding the disassembly and assembly of the shift fork during maintenance and improving the maintenance efficiency.

[0018] 3. The main shaft connection assembly and the secondary shaft connection assembly can act independently without interfering with each other, so that the main shaft and the secondary shaft can be hoisted separately to meet more usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 This is a schematic diagram of the top view of the structure of this application;

[0021] Figure 2 This is a schematic diagram of the main structure of this application;

[0022] Figure 3 This is a schematic diagram of the axonometric structure of this application;

[0023] Figure 4 This is a schematic diagram of the structure of the fork connection assembly described in this application;

[0024] Figure 5 This is a schematic diagram of the main structure of the rotating disk described in this application;

[0025] Figure 6 This is a schematic diagram of the top view of the rotating disk described in this application;

[0026] Figure 7 This is a schematic diagram of the structure of the support plate described in this application;

[0027] Figure 8 This is a schematic diagram of the structure of the hook retractor described in this application.

[0028] In the figure: 100, supporting plate; 101, arc-shaped hole; 1, main shaft connecting assembly; 11, main shaft sleeve; 12, pull rod; 121, pull hook; 122, strip groove; 123, protective cover; 13, rotating nut; 14, rotating disk; 141, locking bolt; 142, connecting plate; 143, limiting stud; 144, limiting pin; 145, rotating handle; 15, bearing; 150, limiting hole; 16, reinforcing plate; 2, secondary shaft connecting assembly; 21, secondary shaft sleeve; 22, connecting bolt; 3, fork connecting assembly; 31, fixing plate; 32, extrusion plate; 321, extrusion plate one; 322, extrusion plate two; 33, rotating shaft; 34, extrusion bolt; 4, lifting assembly; 41, connecting seat; 42, lifting support rod; 43, lifting connector; 430, lifting hole. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments 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 ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-Figure 8 As shown, a transmission shaft system lifting tool is used to lift the main shaft and secondary shaft of the transmission, including a horizontally arranged support plate 100, a lifting assembly 4 is fixed on the top of the support plate 100, and a main shaft connecting assembly 1, a secondary shaft connecting assembly 2 and a fork connecting assembly 3 capable of clamping and fixing the top of the fork are also fixed on the support plate 100; wherein, the main shaft connecting assembly 1 includes a pull hook 121 and a main shaft sleeve 11 fixed on the support plate 100 for sleeved on the end of the main shaft, the pull hook 121 includes a pull rod 12 with an external thread on the upper part, the pull rod 12 is vertically arranged, a pull hook 121 is fixed at the bottom end, and the top end passes through the support plate 100 upward and is sleeved with a rotating nut 13 matching its external thread; the secondary shaft connecting assembly 2 includes a secondary shaft sleeve 21 for sleeved on the end of the secondary shaft and a connecting bolt 22 located at the top of the secondary shaft sleeve 21 and threadedly connected to it, the connecting bolt 22 is vertically arranged and its threaded end can match and lock with the threaded hole at the end of the secondary shaft.

[0031] The main shaft and the secondary shaft can be hoisted by the main shaft connection assembly 1 and the secondary shaft connection assembly 2, and placed in a designated position for maintenance, meeting the hoisting requirements of the main shaft and the secondary shaft. While hoisting the main shaft and the secondary shaft, the fork can be hoisted by the fork connection assembly 3, avoiding the disassembly and assembly of the fork during maintenance. The maintenance efficiency is improved. The main shaft connection assembly 1 and the secondary shaft connection assembly 2 can act independently without interfering with each other, so that the main shaft and the secondary shaft can be hoisted separately to meet more usage requirements.

[0032] When the application is in use, any type of lifting machine is selected to lift it and transport it to the top of the main shaft and secondary shaft of the transmission through the lifting assembly 4, the threaded hole at the end of the secondary shaft is aligned with the connecting bolt 22, and the connecting bolt 22 is screwed in to lock the secondary shaft with the secondary shaft sleeve 21 and the support plate 100. When lifting the main shaft, first adjust the height of the hook 121 on the pull rod 12 by rotating the nut 13 to a position that does not interfere with the movement of the main shaft to the bottom of the main shaft sleeve 11. After placing the end of the main shaft under the main shaft sleeve 11, adjust the height of the hook 121 by rotating the nut 13 again so that it hooks the gear at the appropriate position on the main shaft and works together with the main shaft sleeve 11 to fix the main shaft and the support plate 100. At the same time, clamp the top of the fork through the fork connecting assembly 3, so that the fork can be connected to the main shaft and the secondary shaft and lifted and transported to the maintenance location. The main shaft and the secondary shaft can also be lifted separately, and maintenance personnel are required to help maintain balance during transportation.

[0033] like Figure 4-Figure 6 As shown, a rotating disk 14 is sleeved on the pull rod 12, and the rotating disk 14 is located between the rotating nut 13 and the supporting plate 100 and is rotatably connected to the supporting plate 100 through a bearing 15. A strip groove 122 is opened on the side wall of the pull rod 12 along its axial direction, and a locking bolt 141 is passed through the side wall of the rotating disk 14, which can extend into the strip groove 122 and lock it.

[0034] The rotating disk 14 and the pull rod 12 are locked by the locking bolt 141, so that the rotating disk 14 can drive the pull rod 12 to rotate. When preventing interference with the main shaft assembly into the main shaft sleeve 11, the pull hook 121 can rotate more flexibly. For example, the pull hook 121 can be rotated to the outside without the need to repeatedly adjust the height, and the locking bolt 141 can also strengthen the height positioning of the pull rod 12.

[0035] However, due to the high flexibility of the rotating disk 14, the direction needs to be manually fixed after the pull rod 12 is rotated and reset. Therefore, a connecting plate 142 is fixed on one side of the rotating disk 14, and a vertically arranged limiting stud 143 is threadedly connected to the connecting plate 142. The outer side of the rotating disk 14 is sleeved with a reinforcing plate 16 fixed to the support plate 100. The reinforcing plate 16 is provided with a plurality of limiting holes 150 distributed in a circular array. The limiting stud 143 can be inserted into any limiting hole 150 as the rotating disk 14 rotates. Therefore, when the direction of the pull rod 12 is fixed, the limiting stud 143 is inserted into the limiting hole 150 and locked, and the main shaft and the support plate 100 can be fixed by adjusting the height of the hook 121. A rotating handle 145 is also fixed on the rotating disk 14, which is more convenient for manual rotation of the rotating disk 14.

[0036] like Figure 5-Figure 7As shown, in order to further speed up the direction determination of the hook 121, a limit pin 144 is fixed at the bottom of the rotating disk 14, and a circular arc hole 101 is provided on the support plate 100. The limit pin 144 is inserted into the circular arc hole 101 and can move inside the circular arc hole 101 as the rotating disk 14 rotates. When the limit pin 144 is located at one end of the circular arc hole 101, the hook 121 is located at the working position to hook the gear of the main shaft. When the limit pin 144 is located at the other end of the circular arc, the hook 121 rotates 90° to one side from the working position. Therefore, when working, the rotating disk 14 is rotated to make the limit pin 144 located at one end of the circular arc hole 101. On the contrary, when avoiding the main shaft to prevent interference, it is directly rotated to the limit pin 144 located at the other end of the circular arc. In this way, there are only two positions to change, and it is more convenient and quick to adjust.

[0037] like Figure 4 As shown, an embodiment of the fork connecting assembly 3 includes a fixing plate 31 and a pressing plate 32, wherein the fixing plate 31 is vertically arranged and fixed to the support plate 100, and the pressing plate 32 is rotatably connected to the support plate 100 via a rotating shaft 33, and a pressing bolt 34 is connected to the support plate 100, and the pressing bolt 34 can rotate to make the pressing plate 32 approach or move away from the fixing plate 31. When in use, the top end of the fork can be placed between the fixing plate 31 and the pressing plate 32.

[0038] The extrusion plate 32 includes an extrusion plate 1 321 and an extrusion plate 2 322 fixed at right angles. The extrusion plate 1 321 contacts the extrusion bolt 34, and can gradually approach or move away from the fixed plate 31 with the rotation of the extrusion bolt 34. Thus, the extrusion bolt 34 is rotated, and the extrusion spiral causes the extrusion plate 1 321 to rotate around the rotation axis 33, thereby driving the extrusion plate 2 322 to be pressed toward the fixed plate 31. In this way, the extrusion bolt 34 can be arranged vertically and through the support plate 100, and the layout is more reasonable and the operation is more convenient.

[0039] The hoisting assembly 4 includes two connection seats 41 fixed to the support plate 100, a horizontally arranged hoisting support rod 42 is fixed between the two connection seats 41, a hoisting connector 43 is slidably connected to the hoisting support rod 42, and a hoisting hole 430 is provided on the hoisting connector 43. The hoisting connector 43 can be moved on the hoisting support rod 42 to better maintain the balance of the entire system, adapt to different models of transmission main and secondary shafts, or only hoist the main shaft or secondary shaft separately.

[0040] like Figure 2-Figure 3 As shown, since the pull rod 12 needs to be fitted and locked with the gear of the main shaft, a protective sleeve 123 is fixed on the outside of the pull rod 12 to prevent the gear surface from being damaged.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission shaft system hoisting tool, used for hoisting the main shaft and counter shaft of the transmission, characterized in that: It comprises a horizontally arranged support plate (100), a hoisting assembly (4) being fixed on the top of the support plate (100), and a main shaft connection assembly (1), a secondary shaft connection assembly (2) and a shift fork connection assembly (3) capable of clamping and fixing the top of the shift fork being also fixed on the support plate (100); The spindle connection assembly (1) comprises a hook puller and a spindle sleeve (11) fixed on a support plate (100) and used to be sleeved on the end of the spindle, the hook puller comprises a pull rod (12) with an external thread on the upper portion, the pull rod (12) is vertically arranged, a hook (121) is fixed at the bottom end thereof, and a top end passes through the support plate (100) upwards and is sleeved with a rotating nut (13) matching the external thread thereof; The secondary shaft connection assembly (2) comprises a secondary shaft sleeve (21) for sleeved on the end of the secondary shaft and a connection bolt (22) located at the top of the secondary shaft sleeve (21) and threadedly connected thereto. The connection bolt (22) is vertically arranged and its threaded end can match and lock with the threaded hole at the end of the secondary shaft.

2. The transmission shaft system lifting tool according to claim 1, characterized in that: A rotating disk (14) is sleeved on the pull rod (12), and the rotating disk (14) is located between the rotating nut (13) and the supporting plate (100) and is rotatably connected to the supporting plate (100) via a bearing (15). A strip groove (122) is provided on the side wall of the pull rod (12) along its axial direction, and a locking bolt (141) is penetrated on the side wall of the rotating disk (14) and can extend into the strip groove (122) and be locked.

3. The transmission shaft system lifting tool according to claim 2, characterized in that: A connecting plate (142) is fixed to one side of the rotating disk (14), a vertically arranged limiting stud (143) is threadedly connected to the connecting plate (142), a reinforcing plate (16) fixed to the supporting plate (100) is sleeved on the outer side of the rotating disk (14), a plurality of limiting holes (150) distributed in a circular array are formed on the reinforcing plate (16), and the limiting stud (143) can be inserted into any limiting hole (150) as the rotating disk (14) rotates.

4. A transmission shaft system hoisting tool according to claim 2 or 3, characterized in that: A limit pin (144) is fixed at the bottom of the rotating disk (14), and a circular arc hole (101) is opened on the support plate (100). The limit pin (144) is inserted into the circular arc hole (101) and can move inside the circular arc hole (101) as the rotating disk (14) rotates. When the limit pin (144) is located at one end of the circular arc hole (101), the hook (121) is located at a working position to hook the gear of the main shaft. When the limit pin (144) is located at the other end of the circular arc, the hook (121) rotates 90 degrees from the working position to one side.

5. The transmission shaft system lifting tool according to claim 1, characterized in that: The fork connection assembly (3) comprises a fixing plate (31) and a pressing plate (32); the fixing plate (31) is vertically arranged and fixed to the support plate (100); the pressing plate (32) is rotatably connected to the support plate (100) via a rotating shaft (33); a pressing bolt (34) is connected to the support plate (100); the pressing bolt (34) can rotate to move the pressing plate (32) closer to or farther from the fixing plate (31).

6. The transmission shaft system lifting tool according to claim 5, characterized in that: The extrusion plate (32) comprises an extrusion plate 1 (321) and an extrusion plate 2 (322) fixed at right angles, wherein the extrusion plate 1 (321) is in contact with the extrusion bolt (34) and can gradually approach or move away from the fixed plate (31) as the extrusion bolt (34) rotates.

7. The transmission shaft system lifting tool according to claim 1, characterized in that: The hoisting assembly (4) comprises two connection seats (41) fixed to the support plate (100), a horizontally arranged hoisting support rod (42) being fixed between the two connection seats (41), a hoisting connection piece (43) being slidably connected to the hoisting support rod (42), and a hoisting hole (430) being provided on the hoisting connection piece (43).

8. The transmission shaft system lifting tool according to claim 1, characterized in that: A protective sleeve (123) is fixed to the outside of the pull rod (12).

9. The transmission shaft system lifting tool according to claim 2, characterized in that: A rotating handle (145) is fixed on the rotating disk (14).

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