Generator set lifting device

Abstract

A generator set lifting device, the rotation of the worm drives the worm wheel to rotate, and then drives the rotating shaft to rotate; the two ends of the rotating shaft are respectively connected to a driving arm, and each fixed plate is pivotally connected to a follower arm, and a number of circular holes are provided on the driving arm and the follower arm. The driving arm and the follower arm at one end of the rotating shaft constitute a first rotating assembly, and the driving arm and the follower arm at the other end of the rotating shaft constitute a second rotating assembly; the connecting rod includes a first connecting rod and a second connecting rod, and the two ends of the first connecting rod are respectively connected to the circular holes of the driving arm and the circular holes of the follower arm in the first rotating assembly; the follower arm is connected to the hanging basket through the connecting plate, the driving arm is pivotally connected to the hanging basket, and a locking piece is provided in the hanging basket to fix the generator set.

Description

Technical Field

[0001] The present invention relates to the field of special vehicles for field special operations, and in particular to a generator set lifting device. Background Art

[0002] The present invention relates to a structural improvement of a special vehicle for field special operations based on a Mengshi chassis. Special vehicles for field special operations are generally powered by a vehicle-mounted generator set. Since the generator set has large noise and vibration, the generator set is installed on the vehicle for operation, and the noise and vibration will be transmitted to the vehicle body, which will affect the personnel working in the vehicle. Manual loading and unloading is often used to remove the generator set for use. However, the large-power generator itself is heavy, and manual handling on and off the vehicle is laborious, low in efficiency, and inconvenient to use and maintain. In addition, problems such as the placement stability and shock absorption of the generator itself need to be solved one by one.

[0003] In actual engineering practice, the following problems exist when automating the lifting of the hanging basket that accommodates the generator set:

[0004] 1. When placing a generator set on a special vehicle in the prior art, there are problems such as collision that need to be solved due to the large size and weight of the generator set.

[0005] 2. After placing the generator set on the special vehicle in the prior art, the generator set will shake due to the movement of the vehicle, causing undesirable effects. Common methods include adding guardrails, but the space enclosed by the guardrails takes up a large space inside the vehicle, and the guardrails need to have a certain height, which is not conducive to space planning. Moreover, if the guardrails cannot be tightly fitted, the problem of the generator set shaking cannot be solved, which is not conducive to adapting to various types of generator sets and requires special adaptation and manufacturing.

[0006] 3. The spring buffer column in the prior art has a difficult time guaranteeing its life when the spring is subjected to long-term impact. If it is a hydraulic buffer column in the prior art, it absorbs the impact energy through damping, but a collision is still inevitable at the end of the buffer stroke.

[0007] Fourth, in the prior art, the buffer column has only one collision surface at the end of the buffer stroke, which does not produce a good positive effect on life and impact.

[0008] 5. The hydraulic buffer column in the prior art does not take into account the displacement volume, resulting in few functions that can be developed.

[0009] 6. In the prior art, the spring-type buffer column will be compressed to the extreme during a collision and further bear the impact force, resulting in a greatly reduced service life. Summary of the Invention

[0010] In order to overcome the above problems, the present invention proposes a solution to solve the above multiple problems at the same time.

[0011] The technical solution adopted by the present invention to solve its technical problem is: a generator set lifting device, including a worm gear, a worm, a rotating shaft, a driving arm, a follower arm, a connecting rod, a fixing plate, a connecting piece, a hanging basket, a locking piece, a base frame, a support frame, a supporting column, a detector, and a fixing piece; the base frame is provided with the supporting column, a foot of the supporting frame is fixed to the base frame, the fixing piece is fixed to the base frame, and the fixing piece is installed on the detector; a fixing plate is provided at each end of the base frame, and the two ends of the rotating shaft are respectively provided on a fixing plate, and the rotation of the worm drives the worm gear to rotate, thereby driving the rotating shaft Rotation; each end of the rotating shaft is connected to a driving arm, and each fixed plate is pivotally connected to a follower arm, and a plurality of circular holes are provided on the driving arm and the follower arm. The driving arm and the follower arm at one end of the rotating shaft constitute a first rotating assembly, and the driving arm and the follower arm at the other end of the rotating shaft constitute a second rotating assembly; the connecting rod includes a first connecting rod and a second connecting rod, and the two ends of the first connecting rod are respectively connected to the circular holes of the driving arm and the circular holes of the follower arm in the first rotating assembly; the follower arm is connected to the hanging basket through the connecting piece, the driving arm is pivotally connected to the hanging basket, and a locking member is provided in the hanging basket to fix the generator set;

[0012] The support column includes an upper cover, a column, a groove, an upper cavity, a piston cavity, a lower cavity, a through hole, a closed hole, a spring, a baffle, an upper wall, a lower wall, an upper rod, a closed disk, a middle rod, an upper piston, a lower rod, a lower piston, and a liquid pusher; the support frame includes a main body, a leg, a foot, and a reinforcing rib;

[0013] The upper end of the cylinder is provided with the upper cover, the upper wall of the cylinder is recessed to form a groove, the upper end of the spring is connected to the lower wall of the upper cover, and the lower end is connected to the bottom wall of the groove, a through hole is formed in the upper wall, a baffle is provided inside the cylinder, an upper cavity is formed between the upper wall and the baffle, a lower groove is provided in the lower wall of the cylinder to form a lower cavity, a piston cavity is formed between the lower cavity and the baffle, an upper piston and a lower piston are provided in the piston cavity, the diameter of the upper piston is larger than the diameter of the lower piston, a perforation is provided in the upper piston, and a closed hole is opened in the middle of the baffle;

[0014] The lower wall of the upper cover is connected to an upper rod, and the upper rod, the closing disk, the middle rod, the upper piston, the lower rod, the lower piston, and the liquid pushing block are connected in sequence from top to bottom; the upper rod passes through the through hole, and the closing disk abuts the upper wall in the initial state; in the supporting state, the closing disk seals the closed hole, the liquid pushing block enters the lower groove, the lower piston separates the lower cavity from the piston cavity, the lower wall of the upper cover abuts the upper wall of the cylinder, the diameter of the lower cavity is smaller than the diameter of the piston cavity, and the diameter of the liquid pushing block is smaller than the diameter of the lower piston;

[0015] An electromagnet is provided in the main body, two legs are provided below the main body, a foot is provided below each leg, and reinforcing ribs are provided between the main body and the foot; the other foot of the support frame is fixed in the vehicle body.

[0016] Preferably, the number of support columns is four.

[0017] Preferably, the number of the support frames is two.

[0018] Preferably, in the supporting state, the lower surface of the liquid pushing block abuts against the liquid.

[0019] Preferably, in the supported state, the lower surface of the closing disc abuts the liquid.

[0020] Preferably, in the initial state, the lower surface of the upper piston abuts against the liquid.

[0021] Preferably, the upper cover includes an upper plate and a peripheral wall.

[0022] Preferably, in the supporting state, the spring is completely located in the groove.

[0023] Preferably, the closing disc can prevent the liquid in the piston cavity from entering the upper cavity when sealing the closing hole.

[0024] Preferably, the detector is used to detect whether an object is supported on the support system.

[0025] The beneficial effects of the present invention are:

[0026] 1. In response to the first point raised in the background technology, a bracket with a buffer column is proposed, which can reduce the impact when heavy objects are placed.

[0027] 2. In response to the second point raised in the background technology, an electromagnet element is provided on the bracket to better adsorb the generator set.

[0028] 3. In response to the third point raised in the background technology, a buffer column with hydraulic buffering and spring buffering coupled is designed. At the end of the buffering stroke, a separate liquid space is isolated by the piston, and the liquid is fixed in the liquid space to form a lock. The locked part of the liquid provides a liquid stopper, thereby providing an additional locked and relatively fixed liquid impact surface on the basis of the original solid collision. The liquid impact surface has a better protection effect than the solid impact surface.

[0029] 4. In response to the fourth point raised in the background technology, a three-point impact surface is provided. On the basis of the collision between the cover and the column and the liquid impact surface mentioned above, a second working mode is optionally provided, and a second liquid impact surface is added. The specific structure is that a baffle is added to the inner cavity of the column, and a through hole is formed in the middle of the baffle. The through hole cooperates with the second collision part (closing disk) to form a complete seal. When it is necessary to increase the impact surface, the liquid in the inner cavity of the column is optionally increased, and the contact between the closing disk and the liquid is utilized to form two liquid impact surfaces at the end of the buffer stroke, so as to further disperse the impact and improve the protection effect on components.

[0030] 5. Regarding the fifth point raised in response to the background technology, as mentioned above, a separate liquid space is isolated by a piston; but it is conceivable that a cavity forms a liquid space. If the piston is only located above the liquid space for isolation, it still has to abut against the bottom wall of the column around the cavity to form a solid impact; therefore, a diameter-reduced liquid pushing block is designed under the piston. The diameter of the liquid pushing block is small, which makes it convenient to enter the liquid space and push the liquid. When the piston falls, the liquid pushing block first enters the liquid space and pushes out a small part of the liquid in the liquid space, thereby avoiding space so that a small part of the lower piston can smoothly enter the liquid space, thereby forming a more stable state.

[0031] 6. In response to the sixth point raised in the background technology, a groove is provided at the upper end of the column to accommodate a spring. The spring extends out of the groove when in its original state and enters the groove when squeezed. The spring is protected by the groove and will not be over-squeezed. Based on the above-mentioned means, a balance is sought among various factors such as spring protection and impact protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below with reference to the accompanying drawings and examples.

[0033] Figure 1 The three-dimensional diagram of the support system of the present invention

[0034] Figure 2 Schematic diagram of the initial state of the support column of the present invention

[0035] Figure 3 Schematic diagram of the supporting state of the support column of the present invention

[0036] Figure 4 The three-dimensional diagram of the support frame of the present invention

[0037] Figure 5 Schematic diagram of the second working mode of the present invention showing an increase in liquid in the column

[0038] Figure 6 This is a three-dimensional diagram of the lifting device of the present invention

[0039] Figure 7 This is the working principle diagram of the lifting device of the present invention

[0040] In the figures, the reference numerals are as follows:

[0041] 1. Base frame, 2. Support frame, 3. Support column, 4. Detector, 5. Fixing part, 6. Upper cover, 7. Cylinder, 8. Groove, 9. Upper chamber, 10. Piston upper chamber, 11. Piston lower chamber, 12. Lower chamber, 13. Through hole, 14. Closed hole, 15. Spring, 16. Baffle plate, 17. Upper wall, 18. Lower wall, 19. Upper rod, 20. Closed disk, 21. Middle rod, 22. Upper piston, 23. Lower rod, 24. Lower piston, 25. Pushing block, 26. Perforation, 27. Main body, 28. Leg, 29. Foot, 30. Reinforcing rib, 31. Worm gear, 32. Worm, 33. Rotating shaft, 34. Driving arm, 35. Follower arm, 36. Connecting rod, 37. Round hole, 38. Fixing plate, 39. Connecting piece, 40. Hanging basket, 41. Locking part. DETAILED DESCRIPTION

[0042] As shown in the figure: a generator set lifting device, including a worm gear, a worm, a rotating shaft, a driving arm, a follower arm, a connecting rod, a fixing plate, a connecting piece, a hanging basket, a locking piece, a base frame, a support frame, a supporting column, a detector, and a fixing piece; the base frame is provided with the supporting column, a foot of the supporting frame is fixed to the base frame, the fixing piece is fixed to the base frame, and a detector is installed on the fixing piece; a fixing plate is provided at each end of the base frame, and the two ends of the rotating shaft are respectively provided on a fixing plate, and the rotation of the worm drives the worm gear to rotate, thereby driving the rotating shaft to rotate; the rotating shaft A driving arm is connected to each end, a follower arm is pivotally connected to each fixed plate, and a plurality of circular holes are provided on the driving arm and the follower arm. The driving arm and the follower arm at one end of the rotating shaft constitute a first rotating assembly, and the driving arm and the follower arm at the other end of the rotating shaft constitute a second rotating assembly; the connecting rod includes a first connecting rod and a second connecting rod, and the two ends of the first connecting rod are respectively connected to the circular holes of the driving arm and the circular holes of the follower arm in the first rotating assembly; the follower arm is connected to the hanging basket through the connecting piece, the driving arm is pivotally connected to the hanging basket, and a locking piece is provided in the hanging basket to fix the generator set;

[0043] The support column includes an upper cover, a column, a groove, an upper cavity, a piston cavity, a lower cavity, a through hole, a closed hole, a spring, a baffle, an upper wall, a lower wall, an upper rod, a closed disk, a middle rod, an upper piston, a lower rod, a lower piston, and a liquid pusher; the support frame includes a main body, a leg, a foot, and a reinforcing rib;

[0044] The upper end of the cylinder is provided with the upper cover, the upper wall of the cylinder is recessed to form a groove, the upper end of the spring is connected to the lower wall of the upper cover, and the lower end is connected to the bottom wall of the groove, a through hole is formed in the upper wall, a baffle is provided inside the cylinder, an upper cavity is formed between the upper wall and the baffle, a lower groove is provided in the lower wall of the cylinder to form a lower cavity, a piston cavity is formed between the lower cavity and the baffle, an upper piston and a lower piston are provided in the piston cavity, the diameter of the upper piston is larger than the diameter of the lower piston, a perforation is provided in the upper piston, and a closed hole is opened in the middle of the baffle;

[0045] The lower wall of the upper cover is connected to an upper rod, and the upper rod, the closing disk, the middle rod, the upper piston, the lower rod, the lower piston, and the liquid pushing block are connected in sequence from top to bottom; the upper rod passes through the through hole, and the closing disk abuts the upper wall in the initial state; in the supporting state, the closing disk seals the closed hole, the liquid pushing block enters the lower groove, the lower piston separates the lower cavity from the piston cavity, the lower wall of the upper cover abuts the upper wall of the cylinder, the diameter of the lower cavity is smaller than the diameter of the piston cavity, and the diameter of the liquid pushing block is smaller than the diameter of the lower piston;

[0046] An electromagnet is provided in the main body, two legs are provided below the main body, a foot is provided below each leg, and reinforcing ribs are provided between the main body and the foot; the other foot of the support frame is fixed in the vehicle body.

[0047] As shown in the figure: the number of support columns is four. The number of support frames is two. In the supporting state, the lower surface of the liquid pushing block abuts the liquid. In the supporting state, the lower surface of the closing disk abuts the liquid. In the initial state, the lower surface of the upper piston abuts the liquid. The upper cover includes an upper plate and a peripheral wall. In the supporting state, the spring is completely located in the groove. When the closing disk seals the closed hole, it can prevent the liquid in the piston cavity from entering the upper cavity. The detector is used to detect whether there is an object supported on the support system.

[0048] The operating principle includes: the motor rotates to drive the worm, which in turn drives the worm wheel, which in turn drives the shaft, thereby driving the drive arm, and ultimately the basket. Multiple circular holes provide a pivotable connection, and the connecting piece and the basket are detachably connected, allowing the basket to be fixed when it is outside the vehicle body. One end of the connecting piece is pivotally connected to the circular hole, and the other end is detachably fixed to the basket. The connecting rod is connected to the two circular holes at both ends. By switching the connection between the connecting rod and the different circular holes, the positioning relationship between the drive arm and the follower arm can be adjusted. The specific installation method is to first install the position of the adjustable circular hole, and then install the fixing bolts at the front end of the basket. These two connection methods provide an adjustable balance between the two connection points of the basket. If the external placement platform is uneven, the pivot connection can flexibly adjust the positioning of the basket at different placement angles. When the basket is raised to a certain level, the connecting piece is removed to facilitate the pivoting and retraction of the basket into the vehicle body. The reverse self-locking function of the worm gear ensures safety during the rotation and lifting process. The cooperation between the hanging basket and different round holes can also adjust the length of the entire rotating arm module to adjust the height of the hanging basket.

[0049] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the present invention should be included in the patent scope of this case.

Claims

1. A generator set lifting device, characterized by: The invention comprises a worm gear, a worm, a rotating shaft, a driving arm, a follower arm, a connecting rod, a fixing plate, a connecting piece, a hanging basket, a locking piece, a base frame, a supporting frame, a supporting column, a detector, and a fixing piece; the base frame is provided with the supporting column, a foot of the supporting frame is fixed to the base frame, the fixing piece is fixed to the base frame, and a detector is installed on the fixing piece; a fixing plate is provided at each end of the base frame, and the two ends of the rotating shaft are respectively provided on a fixing plate, and the rotation of the worm drives the worm gear to rotate, thereby driving the rotating shaft to rotate; each end of the rotating shaft is connected to a Driving arm, each fixed plate is pivotally connected to a follower arm, and a plurality of circular holes are provided on the driving arm and the follower arm. The driving arm and the follower arm at one end of the rotating shaft constitute a first rotating assembly, and the driving arm and the follower arm at the other end of the rotating shaft constitute a second rotating assembly; the connecting rod includes a first connecting rod and a second connecting rod, and the two ends of the first connecting rod are respectively connected to the circular holes of the driving arm and the circular holes of the follower arm in the first rotating assembly; the follower arm is connected to the hanging basket through the connecting piece, and the driving arm is pivotally connected to the hanging basket. A locking member is provided in the hanging basket to fix the generator set; The support column includes an upper cover, a column, a groove, an upper cavity, a piston cavity, a lower cavity, a through hole, a closed hole, a spring, a baffle, an upper wall, a lower wall, an upper rod, a closed disk, a middle rod, an upper piston, a lower rod, a lower piston, and a liquid pusher; the support frame includes a main body, a leg, a foot, and a reinforcing rib; The upper end of the cylinder is provided with the upper cover, the upper wall of the cylinder is recessed to form a groove, the upper end of the spring is connected to the lower wall of the upper cover, and the lower end is connected to the bottom wall of the groove, a through hole is formed in the upper wall, a baffle is provided inside the cylinder, an upper cavity is formed between the upper wall and the baffle, a lower groove is provided in the lower wall of the cylinder to form a lower cavity, a piston cavity is formed between the lower cavity and the baffle, an upper piston and a lower piston are provided in the piston cavity, the diameter of the upper piston is larger than the diameter of the lower piston, a perforation is provided in the upper piston, and a closed hole is opened in the middle of the baffle; The lower wall of the upper cover is connected to an upper rod, and the upper rod, the closing disk, the middle rod, the upper piston, the lower rod, the lower piston, and the liquid pushing block are connected in sequence from top to bottom; the upper rod passes through the through hole, and the closing disk abuts the upper wall in the initial state; in the supporting state, the closing disk seals the closed hole, the liquid pushing block enters the lower groove, the lower piston separates the lower cavity from the piston cavity, the lower wall of the upper cover abuts the upper wall of the cylinder, the diameter of the lower cavity is smaller than the diameter of the piston cavity, and the diameter of the liquid pushing block is smaller than the diameter of the lower piston; An electromagnet is provided in the main body, two legs are provided below the main body, a foot is provided below each leg, and reinforcing ribs are provided between the main body and the foot; the other foot of the support frame is fixed in the vehicle body.

2. A generator set lifting device according to claim 1, characterized in that: The number of support columns is four.

3. The generator set lifting device according to claim 1, characterized in that: The number of the supporting frames is two.

4. The generator set lifting device according to claim 1, characterized in that: In the supporting state, the lower surface of the liquid pushing block abuts against the liquid.

5. The generator set lifting device according to claim 4, characterized in that: In the supported state, the lower surface of the closing disc abuts the liquid.

6. The generator set lifting device according to claim 1, characterized in that: In an initial state, the lower surface of the upper piston abuts against the liquid.

7. The generator set lifting device according to claim 1, characterized in that: The upper cover includes an upper plate and a peripheral wall.

8. The generator set lifting device according to claim 1, characterized in that: In the supported state, the spring is completely located in the groove.

9. The generator set lifting device according to claim 1, characterized in that: The closing disc can prevent the liquid in the piston cavity from entering the upper cavity when sealing the closing hole.

10. The generator set lifting device according to claim 1, characterized in that: The detector is used to detect whether an object is supported on the support system.

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