Reinforced transmission shaft suitable for gantry machining center
By reinforcing the connection with a toothed plate and spring structure on the reinforced drive shaft, and combining it with a protective mechanism to prevent impurities from entering, the problems of loosening and contamination at the drive shaft connection are solved, and the stability and accuracy of the equipment are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-06
AI Technical Summary
The existing drive shaft is prone to cracking and peeling at the connection point due to long-term use and impact, which leads to loosening and affects the machining accuracy and equipment stability.
The design features a reinforced drive shaft, which uses a toothed plate and spring structure to ensure a reliable and secure connection. A protective mechanism prevents impurities from entering, and a pull rope and telescopic cylinder provide a protective cover at the connection point.
This effectively avoids loosening and contamination at the drive shaft connection, improving the stability and machining accuracy of the equipment.
Smart Images

Figure CN223975403U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transmission shaft technology, and in particular to a reinforced transmission shaft suitable for gantry machining centers. Background Technology
[0002] A gantry frame is a frame structure composed of columns and beams, resembling the shape of a door. It is commonly used in building construction, material handling, and machinery manufacturing. The reinforced drive shaft suitable for gantry machining centers is designed to meet the high-load and high-precision machining requirements of gantry machining centers. It is based on traditional drive shafts, with structural optimization and material upgrades to improve its load-bearing capacity, transmission accuracy, and stability.
[0003] In existing technologies, drive shafts are connected at the joint using a cross shaft, universal joint, and splined gear components. However, during high-frequency transmission, the cross shaft, universal joint, and splined gear components at the joint will wear due to friction, leading to a gradual increase in the clearance. This can cause vibration, abnormal noise, and impacts when the load changes, affecting machining accuracy and equipment stability. Existing technologies coat the surface of the components with a self-lubricating coating, such as a molybdenum disulfide coating on the surface of the cross shaft, which can reduce the coefficient of friction and reduce wear to a certain extent. However, under long-term use and impact, the molybdenum disulfide coating will experience local cracking and peeling, causing the drive shaft connection to loosen. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a reinforced drive shaft suitable for gantry machining centers, aiming to improve the problem that in the prior art, the molybdenum disulfide coating will locally crack and peel off when used for a long time and subjected to impact, thus causing the connection of the drive shaft to loosen.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a reinforced drive shaft suitable for gantry machining centers, comprising a shaft body, wherein multiple elongated hollow plates are fixedly connected at equal intervals to the rear end of the outer wall of the shaft body, a support frame is fixedly connected to the top of the elongated hollow plates, a toothed plate is rotatably connected to the outer wall of the support frame, a second spring is fixedly connected to the top of the elongated hollow plates, the other end of the outer wall of the second spring is fixedly connected to the bottom of the toothed plate, a connecting shaft is installed at the rear end of the outer wall of the shaft body, multiple inner sliding groove elongated plates are fixedly connected at equal intervals to the front end of the outer wall of the connecting shaft, a slider is slidably connected inside the inner sliding groove elongated plates, a grooved elongated plate is fixedly connected to the top of the slider, and a protective mechanism is installed on the top of the shaft body, the protective mechanism being used to cover and protect the connection between the shaft body and the connecting shaft.
[0006] As a further description of the above technical solution:
[0007] The protective mechanism includes a hollow ring mounted on the top of a shaft. Multiple springs are fixedly connected at equal intervals to the front side of the outer wall of the hollow ring. A telescopic cylinder is connected to the other end of the outer wall of each spring. A fixing ring is fixedly connected to the top of the telescopic cylinder. An L-shaped plate is fixedly connected to the top of the outer wall of the shaft. A rotating short column is rotatably connected to the middle of the L-shaped plate. A pull rope is fixedly connected to the outer wall of the rotating short column. A hollow inner sliding groove plate is fixedly connected to the top of the L-shaped plate. A sliding short column is slidably connected inside the hollow inner sliding groove plate.
[0008] As a further description of the above technical solution:
[0009] A warning sign is fixedly connected to the left side of the outer wall of the shaft.
[0010] As a further description of the above technical solution:
[0011] A circular handle is fixedly connected to the top of the rotating short column.
[0012] As a further description of the above technical solution:
[0013] A protective sleeve is fixedly connected to the outer wall of the circular throttle.
[0014] As a further description of the above technical solution:
[0015] A protective pad is fixedly connected to the top of the toothed plate.
[0016] As a further description of the above technical solution:
[0017] The outer wall of the shaft is fixedly connected with an anti-slip sleeve.
[0018] As a further description of the above technical solution:
[0019] A hanging ring is fixedly connected to the top of the anti-slip sleeve.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, by pressing down the toothed plate to compress the second spring, the spring contracts, and the teeth of the toothed plate lift up. Then, the connecting shaft is inserted into the shaft body, and the sliding grooved long plate enters the long hollow plate. After releasing the pressed toothed plate, the second spring returns to its elasticity, and the teeth of the toothed plate engage with the grooves of the grooved long plate to strengthen the connection. This avoids the problem of the molybdenum disulfide coating cracking and peeling off locally during long-term use and impact, which would cause the connection of the transmission shaft to loosen.
[0022] 2. In this utility model, one end of the pull rope is tied to the fixed ring at the top of the telescopic cylinder, and then the short column is rotated to retract the pull rope. When the pull rope is retracted, it will pull the telescopic cylinder to unfold. Then, the sliding short column inside the hollow inner groove plate is slid, so that the sliding short column and the rotating short column are engaged with the groove on the outer wall to achieve fixation. The spring can pull the telescopic cylinder back when it is not in use, thereby achieving the effect of covering and protecting the connection between the shaft and the connecting shaft, and preventing impurities from entering the connection and causing pollution. Attached Figure Description
[0023] Figure 1 This is a perspective view of a reinforced drive shaft suitable for gantry machining centers proposed in this utility model;
[0024] Figure 2 This is a partial structural exploded view of a reinforced drive shaft suitable for gantry machining centers proposed in this utility model;
[0025] Figure 3 This is a partial structural schematic diagram of a reinforced drive shaft suitable for gantry machining centers proposed in this utility model;
[0026] Figure 4 This is a schematic diagram of a protective mechanism for a reinforced drive shaft suitable for gantry machining centers, as proposed in this utility model.
[0027] Figure 5 This is a diagram illustrating a protective mechanism for a reinforced drive shaft suitable for gantry machining centers, as proposed in this utility model.
[0028] Legend:
[0029] 1. Shaft; 2. Protective mechanism; 201. Hollow ring; 202. Spring 1; 203. Fixing ring; 204. Pull rope; 205. Rotating short column; 206. Hollow inner sliding groove plate; 207. L-shaped plate; 208. Sliding short column; 209. Telescopic cylinder; 3. Warning sign; 4. Anti-slip sleeve; 5. Hanging ring; 6. Protective sleeve; 7. Circular throttle; 8. Protective pad; 9. Connecting shaft; 10. Toothed plate; 11. Inner sliding groove long plate; 12. Groove long plate; 13. Long hollow plate; 14. Spring 2; 15. Support frame; 16. Slider. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a reinforced drive shaft suitable for gantry machining centers, comprising a shaft body 1. Multiple elongated hollow plates 13 are equidistantly fixedly connected to the rear end of the outer wall of the shaft body 1. A support frame 15 is fixedly connected to the top of each elongated hollow plate 13. A toothed plate 10 is rotatably connected to the outer wall of the support frame 15. The support frame 15 fixes the toothed plate 10, and the toothed plate 10 performs a rotatable engagement function. A second spring 14 is fixedly connected to the top of each elongated hollow plate 13. The other end of the outer wall of the second spring 14 is fixedly connected to the bottom of the toothed plate 10. A connecting shaft 9 is installed at the rear end of the outer wall of the shaft body 1, and the front end of the connecting shaft 9 is equidistantly connected to... Multiple inner sliding groove long plates 11 are fixedly connected. A slider 16 is slidably connected inside the inner sliding groove long plate 11. A grooved long plate 12 is fixedly connected to the top of the slider 16. A protective mechanism 2 is installed on the top of the shaft 1. The protective mechanism 2 is used to cover and protect the connection between the shaft 1 and the connecting shaft 9. A warning sign 3 is fixedly connected to the left side of the outer wall of the shaft 1. The warning sign 3 can remind the staff of the precautions when using the shaft 1 and play a warning role for the staff. A circular handle 7 is fixedly connected to the top of the rotating short column 205. The circular handle 7 can facilitate the staff to operate and rotate the short column 205.
[0032] Specifically, when the shaft 1 is connected to the connecting shaft 9, the toothed plate 10 is pressed first. When the toothed plate 10 is pressed, it will compress the second spring 14 at the bottom, causing the second spring 14 to contract. When the second spring 14 contracts, the toothed plate on the other side of the bottom of the toothed plate 10 tilts upward. Then, the connecting shaft 9 is inserted into the shaft 1. The long groove plate 12 is slid into the interior of the long hollow plate 13 by sliding the long groove plate 12. Then, the spring 14 at the bottom of the pressed toothed plate 10 is released to restore its elasticity, and the toothed plate 10 is lifted up so that the toothed plate at the bottom engages with the groove outside the long groove plate 12, achieving a reinforcement effect. A warning sign 3 is fixedly connected to the left side of the outer wall of the shaft 1. The warning sign 3 can remind the staff of the precautions when using the shaft 1 and serve as a warning to the staff. A round handle 7 is fixedly connected to the top of the rotating short column 205. The round handle 7 makes it easy for the staff to operate and rotate the short column 205.
[0033] Reference Figure 1 , Figure 4 and Figure 5The protective mechanism 2 includes a hollow ring 201, which is installed on the top of the shaft 1. Multiple springs 202 are equidistantly fixed to the front side of the outer wall of the hollow ring 201. A telescopic cylinder 209 is connected to the other end of the outer wall of each spring 202. A fixing ring 203 is fixedly connected to the top of the telescopic cylinder 209. An L-shaped plate 207 is fixedly connected to the top of the outer wall of the shaft 1. A rotating short column 205 is rotatably connected to the middle of the L-shaped plate 207. The L-shaped plate 207 serves to fix the rotating short column 205. 5 serves to rotate. A pull rope 204 is fixedly connected to the outer wall of the rotating short column 205. A hollow inner slide plate 206 is fixedly connected to the top of the L-shaped plate 207. A sliding short column 208 is slidably connected inside the hollow inner slide plate 206. A protective sleeve 6 is fixedly connected to the outer wall of the circular handle 7. The protective sleeve 6 can protect the circular handle 7 and prevent it from being damaged. A protective pad 8 is fixedly connected to the top of the toothed plate 10. The protective pad 8 can enhance the comfort of the operator's hand when pressing the toothed plate 10.
[0034] Specifically, by attaching one end of the pull rope 204 to the fixing ring 203 at the top of the telescopic cylinder 209, and then rotating the short column 205 to retract the pull rope 204, the telescopic cylinder 209 is pulled and extended. Then, the sliding short column 208 inside the hollow inner slide plate 206 engages with the rotating short column 205 in the outer groove to achieve fixation. The spring 202 can pull the telescopic cylinder 209 back when it is not in use, thus covering the connection between the shaft 1 and the connecting shaft 9 to prevent... The protection is achieved by attaching one end of the pull rope 204 to the fixing ring 203 at the top of the telescopic cylinder 209, and then rotating the short column 205 to retract the pull rope 204. When the pull rope 204 is retracted, it will pull the telescopic cylinder 209 to unfold. Then, the sliding short column 208 inside the hollow inner slide plate 206 is slid, so that the sliding short column 208 and the outer wall groove of the rotating short column 205 are engaged to achieve fixation. The spring 202 can pull the telescopic cylinder 209 back when it is not in use, thereby achieving the protection of the connection between the shaft 1 and the connecting shaft 9.
[0035] Reference Figure 1 and Figure 2 An anti-slip sleeve 4 is fixedly connected to the outer wall of the shaft 1. The anti-slip sleeve 4 can prevent the shaft 1 from slipping and falling when the operator picks it up. A hanging ring 5 is fixedly connected to the top of the anti-slip sleeve 4. The hanging ring 5 can hang the shaft 1 when it is removed or not in use to prevent damage.
[0036] Specifically, an anti-slip sleeve 4 is fixedly connected to the outer wall of the shaft 1. The anti-slip sleeve 4 can prevent the shaft 1 from slipping and falling when the operator picks it up. A hanging ring 5 is fixedly connected to the top of the anti-slip sleeve 4. The hanging ring 5 can hang the shaft 1 when it is removed or not in use to prevent damage.
[0037] Working principle: When shaft 1 is connected to connecting shaft 9, the toothed plate 10 is pressed first. When the toothed plate 10 is pressed, it will compress the second spring 14 at the bottom, causing the second spring 14 to contract. When the second spring 14 contracts, the toothed plate on the other side of the bottom of the toothed plate 10 tilts upward. Then, the connecting shaft 9 is inserted into shaft 1. The long groove plate 12 is slid into the interior of the long hollow plate 13 by sliding the long groove plate 12. Then, the second spring 14 at the bottom of the pressed toothed plate 10 is released to restore its elasticity. The toothed plate 10 is then lifted up so that the toothed plate at the bottom engages with the groove outside the long groove plate 12, achieving a reinforcement effect. This avoids the problem of the molybdenum disulfide coating cracking and peeling off locally when it is used for a long time and subjected to impact, which would cause the connection of the drive shaft to loosen.
[0038] By attaching one end of the pull rope 204 to the fixing ring 203 at the top of the telescopic cylinder 209, and then rotating the short column 205 to retract the pull rope 204, the telescopic cylinder 209 will be pulled and extended. Then, the sliding short column 208 inside the hollow inner slide plate 206 will be slid to engage with the outer groove of the rotating short column 205 to achieve fixation. The spring 202 can pull the telescopic cylinder 209 back when it is not in use, thereby covering and protecting the connection between the shaft 1 and the connecting shaft 9 to prevent impurities from entering the connection and causing contamination.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A reinforced drive shaft suitable for gantry machining centers, comprising a shaft body (1), characterized in that: The outer wall of the shaft body (1) is fixedly connected with a plurality of long hollow plates (13) at the rear end, the top of the long hollow plate (13) is fixedly connected with a support frame (15), the outer wall of the support frame (15) is rotatably connected with a toothed plate (10), the top of the long hollow plate (13) is fixedly connected with a spring (14), the other end of the outer wall of the spring (14) is fixedly connected with the bottom of the toothed plate (10), the outer wall of the rear end of the shaft body (1) is provided with a connecting shaft (9), the outer wall of the front end of the connecting shaft (9) is fixedly connected with a plurality of inner sliding groove long plates (11), the inner sliding groove long plate (11) is slidably connected with a sliding block (16), the top of the sliding block (16) is fixedly connected with a groove long plate (12), the top of the shaft body (1) is provided with a protection mechanism (2), which is used for covering and protecting the connection between the shaft body (1) and the connecting shaft (9).
2. The reinforced drive shaft suitable for gantry machining center according to claim 1, characterized in that: The protection mechanism (2) comprises a hollow ring (201), the hollow ring (201) is installed on the top of the shaft body (1), the outer wall of the front side of the hollow ring (201) is fixedly connected with a plurality of springs (202) at equal intervals, the other end of the outer wall of the spring (202) is connected with a telescopic cylinder (209), the top of the telescopic cylinder (209) is fixedly connected with a fixed ring (203), the outer wall of the top of the shaft body (1) is fixedly connected with an L-shaped plate (207), the middle part of the L-shaped plate (207) is rotatably connected with a rotating short column (205), the outer wall of the rotating short column (205) is fixedly connected with a pull rope (204), the top of the L-shaped plate (207) is fixedly connected with a hollow inner sliding groove plate (206), the inner sliding groove plate (206) is slidably connected with a sliding short column (208).
3. The reinforced drive shaft suitable for gantry machining center according to claim 1, characterized in that: The outer wall of the shaft body (1) is fixedly connected with a warning sign (3).
4. The reinforced drive shaft suitable for gantry machining center according to claim 2, characterized in that: The top of the rotating short column (205) is fixedly connected with a circular handle (7).
5. The reinforced drive shaft suitable for use in a gantry machining center according to claim 4, characterized in that: The outer wall of the circular handle (7) is fixedly connected with a protective sleeve (6).
6. The reinforced drive shaft suitable for gantry machining center according to claim 1, characterized in that: The top of the toothed plate (10) is fixedly connected with a protective pad (8).
7. The reinforced drive shaft suitable for gantry machining center according to claim 1, characterized in that: The outer wall of the shaft body (1) is fixedly connected with an anti-skid sleeve (4).
8. The reinforced drive shaft suitable for use in a gantry machining center according to claim 7, characterized in that: The top of the anti-skid sleeve (4) is fixedly connected with a hanging ring (5).