Camshaft hanger

Abstract

The application discloses a camshaft lifting appliance for improving the installation efficiency of a camshaft. The application comprises a lifting ring, a screw rod, a left lifting hook and a right lifting hook, the lifting ring is connected with the screw rod, the left lifting hook and the right lifting hook are both provided with a first through hole, the left lifting hook and the right lifting hook are connected with the screw rod through the first through hole, the screw rod is provided with a first nut set, the first nut set is sleeved on the screw rod, the first nut set is used for adjusting the position of the left lifting hook on the screw rod and fixing the left lifting hook, and the screw rod is also provided with a second nut set, the second nut set is sleeved on the screw rod, and the second nut set is used for adjusting the position of the right lifting hook on the screw rod and fixing the right lifting hook.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engine installation, and particularly relates to a camshaft lifting appliance. BACKGROUND

[0002] The camshaft is a component in a piston engine, which functions to control the opening and closing actions of the valve. The main body of the camshaft is a cylindrical rod body with a length approximately the same as that of the cylinder group. A plurality of cams are sleeved on the camshaft to drive the valve.

[0003] In the installation of the camshaft, the camshaft timing gear mark needs to be aligned. In the scheme provided by the prior art, the production staff directly carries the top-mounted camshaft from the tool trolley or the packaging box to the engine cylinder head with both hands. Since the timing signal disc and the gear are pressed on one side of the camshaft, the center of gravity of the camshaft is difficult to control, and the camshaft may need to be repeatedly lifted to align the camshaft timing gear mark. The weight of the top-mounted camshaft is about 10 Kg to 20 Kg. The camshaft is installed on the engine by manual carrying, and the labor intensity is large. Since the lengths and centers of gravity of different camshafts are different, the manual installation efficiency is very low. SUMMARY

[0004] In order to solve the above technical problems and improve the installation efficiency of the engine camshaft, the present application provides a camshaft lifting appliance, which comprises a lifting ring, a screw rod, a left lifting hook and a right lifting hook. The lifting ring is connected with the screw rod. The left lifting hook and the right lifting hook are both provided with a first through hole. The left lifting hook and the right lifting hook are connected with the screw rod through the first through hole. A first nut set is arranged on the screw rod. The first nut set is sleeved on the screw rod. The first nut set is used for adjusting the position of the left lifting hook on the screw rod and fixing the left lifting hook. A second nut set is also arranged on the screw rod. The second nut set is sleeved on the screw rod. The second nut set is used for adjusting the position of the right lifting hook on the screw rod and fixing the right lifting hook.

[0005] Optionally, a third nut set is arranged on the screw rod. The third nut set is sleeved on the screw rod. The third nut set is used for adjusting the position of the lifting ring on the screw rod and fixing the lifting ring.

[0006] Optionally, the first nut set comprises two nuts. The two nuts are respectively located on the two sides of the left lifting hook.

[0007] Optionally, the second nut set comprises two nuts. The two nuts are respectively located on the two sides of the right lifting hook.

[0008] Optionally, a second through hole is arranged on the lifting ring. The lifting ring is sleeved on the screw rod through the second through hole.

[0009] Optionally, the third nut set comprises two nuts, and the two nuts are respectively located on two sides of the lifting ring.

[0010] Optionally, the lifting ring is provided with a left lifting arm and a right lifting arm, the left lifting arm and the right lifting arm are both provided with the second through hole, and the lifting ring is connected with the screw rod through the left lifting arm and the right lifting arm.

[0011] Optionally, a gap with a preset distance is formed between the left lifting arm and the right lifting arm, the screw rod is provided with a fourth nut, the fourth nut is sleeved on the screw rod, the fourth nut is located between the left lifting arm and the right lifting arm, and the fourth nut is used for adjusting the position of the lifting ring on the screw rod and fixing the lifting ring.

[0012] Optionally, the left lifting hook and the right lifting hook are both provided with a protective sleeve, the protective sleeve is sleeved outside the left lifting hook and the right lifting hook, and the protective sleeve is used for contacting the camshaft.

[0013] Optionally, the length of the left lifting hook is the same as the length of the right lifting hook.

[0014] From the above technical solutions, the present application has the following advantages:

[0015] In the camshaft lifting device provided by the present application, the screw rod is provided with a lifting ring, which can be used to connect with some cranes, the camshaft lifting device is also provided with a left lifting hook and a right lifting hook, the left lifting hook is fixed on the screw rod through a first nut set, the right lifting hook is fixed on the screw rod through a second nut set, the first nut set can adjust the position of the left lifting hook on the screw rod, the second nut set can adjust the position of the right lifting hook on the screw rod, which is convenient for adapting to the gravity center positions of different camshafts, so as to realize the stable lifting and installation alignment of the camshafts, and greatly improve the installation efficiency of the camshafts. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 An embodiment structure schematic view of the camshaft lifting device provided by the present application is shown in the figure;

[0017] Fig. 2 A left view of the camshaft lifting device provided by the present application is shown in the figure;

[0018] Fig. 3 Another embodiment structure schematic view of the camshaft lifting device provided by the present application is shown in the figure. DETAILED DESCRIPTION

[0019] In the process of installing the camshaft, the camshaft timing gear mark needs to be aligned. In the prior art, the production staff directly carries the top-mounted camshaft from the tool trolley or the packaging box to the engine cylinder head with both hands. Since the timing signal disc and gear are pressed on one side of the camshaft, the center of gravity of the camshaft is difficult to control, and the camshaft may need to be lifted repeatedly to align the camshaft timing gear mark. The weight of the top-mounted camshaft is about 10Kg to 20Kg, and the camshaft is installed on the engine by manual carrying, which is labor-intensive. Since the lengths and centers of gravity of different camshafts are different, the manual installation efficiency is very low.

[0020] Based on this, the application provides a camshaft lifting appliance for improving the installation efficiency of the camshaft.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to illustrate the relative positional relationship between the components or constituent parts, and do not particularly limit the specific installation orientation of the components or constituent parts.

[0022] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0023] In addition, the terms "installation", "setting", "provided with", "connection", "connected" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or constituent parts. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] In addition, the structures, proportions, sizes and the like shown in the drawings in the present application are only used to cooperate with the disclosed content of the specification, to enable those skilled in the art to understand and read, and do not have technical significance, any modification of the structure, change of the proportion relationship or adjustment of the size, as long as it does not affect the effect and the purpose that can be achieved by the present application, it should still fall within the scope of the disclosed technical content of the present application.

[0025] The technical solutions in the present application will be clearly and completely described in combination with the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0026] Please refer to Figs. 1 to 3 The camshaft lifting appliance provided by the present application comprises a lifting ring 1, a screw rod 2, a left lifting hook 31 and a right lifting hook 32. The lifting ring 1 is connected with the screw rod 2. The left lifting hook 31 and the right lifting hook 32 are both provided with a first through hole. The left lifting hook 31 and the right lifting hook 32 are connected with the screw rod 2 through the first through hole 33. The screw rod 2 is provided with a first nut set 21. The first nut set 21 is sleeved on the screw rod 2. The first nut set 21 is used for adjusting the position of the left lifting hook 31 on the screw rod 2 and fixing the left lifting hook 31. The screw rod 2 is also provided with a second nut set 22. The second nut set 22 is sleeved on the screw rod 2. The second nut set 22 is used for adjusting the position of the right lifting hook 32 on the screw rod 2 and fixing the right lifting hook 32.

[0027] In actual application, when installing the camshaft, the camshaft needs to be aligned with the timing gear, and the camshaft may need to be repeatedly lifted and dropped. However, different camshafts have different lengths and weights, and the centers of gravity of the camshafts are also different. Therefore, the lifting appliance needs to be able to adapt to camshafts of various specifications. In the camshaft lifting appliance provided by the present application, the left lifting hook 31 and the right lifting hook 32 are used to cooperate to fix the camshaft. Under the cooperation of the two lifting hooks, the camshaft can be stably fixed on the lifting appliance. The left lifting hook 31 and the right lifting hook 32 are connected with the screw rod 2 through the first through hole 33, so that the two lifting hooks can move on the screw rod. The left lifting hook 31 is fixed through the first nut set 21. When the nuts in the first nut set 21 are rotated, the nuts move on the screw rod 2 to adjust the position of the left lifting hook 31 on the screw rod 2. Similarly, the second nut set 22 can fix the right lifting hook and adjust the position of the right lifting hook 32 on the screw rod 2. By adjusting the positions of the left lifting hook 31 and the right lifting hook 32 on the screw rod 2, the lifting appliance can adapt to camshafts with different centers of gravity. In actual application, the screw-in distances of the first nut set 21 and the second nut set 22 can be determined according to camshafts with different centers of gravity. Through the camshaft lifting appliance provided by the present application, the installation efficiency of the camshaft can be greatly improved, and the labor intensity of the workers can be reduced.

[0028] Optionally, the third nut set 23 is arranged on the screw rod 2, the third nut set 23 is sleeved on the screw rod 2, and the third nut set 23 is used for adjusting the position of the lifting ring 1 on the screw rod 2 and fixing the lifting ring 1.

[0029] The third nut set 23 can include two nuts, which can be distributed on both sides of the lifting ring 1. The two nuts cooperate to fix the lifting ring 1 on the screw rod 2, so that the lifting ring 1 does not move. When the two nuts are rotated, the position of the lifting ring 1 on the screw rod 2 can be adjusted. In actual application, when the lifting device is used to lift some camshafts, it may not be convenient to adjust the position of the two lifting hooks on the screw rod 2. At this time, the position of the lifting ring 1 can be adjusted so that the lifting ring 1 can be located on the position of the weight line of the camshaft, so as to stably lift the camshaft. The position of the lifting ring 1 can also be adjusted to accurately adjust the position of the lifting ring 1 on the weight line of the camshaft, so as to keep the camshaft stable and improve the installation efficiency of the camshaft.

[0030] Optionally, the first nut set 21 includes two nuts, and the two nuts are respectively located on both sides of the left lifting hook 31. The second nut set 22 includes two nuts, and the two nuts are respectively located on both sides of the right lifting hook 32.

[0031] The left lifting hook 31 and the right lifting hook 32 can be fixed by two nuts to prevent the lifting hooks from moving left and right on the screw rod 2, so as to achieve the fixing effect while adjusting the position of the lifting hooks on the screw rod 2.

[0032] Optionally, the lifting ring 1 is provided with a second through hole 11, and the lifting ring 1 is arranged on the screw rod 2 through the second through hole 11. The lifting ring 1 is provided with a second through hole 11, and the lifting ring 1 is sleeved on the screw rod 2 through the second through hole 11.

[0033] Optionally, the third nut set 23 includes two nuts, and the two nuts are respectively located on both sides of the lifting ring 1.

[0034] Optionally, the lifting ring 1 is provided with a left lifting arm 12 and a right lifting arm 13, the left lifting arm 12 and the right lifting arm 13 are provided with the second through hole 11, and the lifting ring 1 is connected with the screw rod 2 through the left lifting arm 12 and the right lifting arm 13.

[0035] The lifting ring 1 can be provided with a left lifting arm 12 and a right lifting arm 13, the lifting ring is sleeved on the screw rod through the through holes on the two lifting arms, in another possible implementation manner, a preset distance interval is formed between the left lifting arm 12 and the right lifting arm 13, a fourth nut 24 is arranged on the screw rod 2, the fourth nut 24 is sleeved on the screw rod 2, the fourth nut 24 is located between the left lifting arm 12 and the right lifting arm 13, and the fourth nut 24 is used for adjusting the position of the lifting ring 1 on the screw rod 2 and fixing the lifting ring 1. Since there are two lifting arms, the effect of fixing and adjusting the position of the lifting ring 1 can be achieved at the same time by only the fourth nut 24. When the position of the lifting ring 1 is adjusted, only one nut needs to be rotated, the convenience of adjustment is improved, and the camshaft installation efficiency is further improved.

[0036] Optionally, the left lifting hook 31 and the right lifting hook 32 are provided with protective sleeves, the protective sleeves are sleeved outside the left lifting hook 31 and the right lifting hook 32, and the protective sleeves are used to contact the camshaft.

[0037] The protective sleeves can protect the camshaft and prevent the lifting device from damaging the camshaft.

[0038] Optionally, the length of the left lifting hook 31 is the same as the length of the right lifting hook 32.

[0039] The two lifting hooks with the same length can improve the stability of lifting the camshaft.

[0040] It should be noted that the above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A camshaft hanger, characterized in that: include: A lifting ring, a screw rod, a left lifting hook and a right lifting hook, wherein the lifting ring is connected to the screw rod, and the left lifting hook and the right lifting hook are both provided with a first through hole, and the left lifting hook and the right lifting hook are connected to the screw rod through the first through hole, and a first nut group is provided on the screw rod, and the first nut group is sleeved on the screw rod, and the first nut group is used to adjust the position of the left lifting hook on the screw rod and fix the left lifting hook, and a second nut group is also provided on the screw rod, and the second nut group is sleeved on the screw rod, and the second nut group is used to adjust the position of the right lifting hook on the screw rod and fix the right lifting hook; the first nut group includes two nuts, and the two nuts are respectively located on both sides of the left lifting hook; the second nut group includes two nuts, and the two nuts are respectively located on both sides of the right lifting hook; the lifting ring A second through hole is provided on the ring, and the lifting ring is sleeved on the screw rod through the second through hole; a left lifting arm and a right lifting arm are provided on the lifting ring, and the second through hole is provided on both the left lifting arm and the right lifting arm, and the lifting ring is connected to the screw rod through the left lifting arm and the right lifting arm; a preset distance is formed between the left lifting arm and the right lifting arm, and a fourth nut is provided on the screw rod, and the fourth nut is sleeved on the screw rod, and the fourth nut is located between the left lifting arm and the right lifting arm, and the fourth nut is used to adjust the position of the lifting ring on the screw rod and fix the lifting ring; a protective sleeve is provided on both the left lifting hook and the right lifting hook, and the protective sleeve is sleeved on the outside of the left lifting hook and the right lifting arm, and the protective sleeve is used to contact the camshaft; the length of the left lifting hook is the same as that of the right lifting arm.

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