Hoisting clamp for bevel gear machining

Abstract

The utility model relates to the technical field of bevel gear machining, in particular to a bevel gear machining hoisting clamp which comprises an installation column, a hoisting ring fixed to the upper end of the installation column, and an inner supporting mechanism used for conducting inner supporting and fixing on a bevel gear when the bevel gear is hoisted and located on the outer side of the installation column. The inner supporting mechanism comprises a plurality of sliding grooves formed in the side wall of the installation column, the sliding grooves are distributed around the circle center of the installation column, sliding bases are installed in the sliding grooves in a sliding mode, balance weight lantern rings are fixed among the sliding bases, and fixing rings are arranged below the sliding grooves. The device has the beneficial effects that the inner supporting mechanism is used for driving the multiple inner supporting plates to conduct inner supporting on the inner wall of the bevel gear, after the bevel gear is separated from the ground, the supporting assembly is used for supporting the bottom end of the bevel gear, shaking of the bevel gear in the hoisting process is reduced, stability is improved, and the supporting plate is used for delaying triggering; deformation of the supporting plate caused by hard friction between the supporting plate and the bottom end of the gear is reduced, and the service life of the supporting plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bevel gear processing, in particular to a hoisting fixture for bevel gear processing. Background Technique

[0002] A gear shaft refers to a mechanical part that supports a rotating part and rotates with it to transmit motion, torque or bending moment. Generally, it is in the shape of a metal round rod, and each section can have a different diameter. The rotating parts in a machine are installed on the shaft. When processing large gear parts, hoisting equipment is needed to hoist the gears onto a gear grinding machine for finish machining.

[0003] By comparing a non-destructive hoisting fixture for ball mill gear processing with the patent publication number CN217172957U, in this solution, the L-shaped support plate in this device moves along with the support arm, so that the L-shaped support plate shovels up the bottom end of the gear, and the L-shaped support plate supports the bottom end of the gear. However, when the L-shaped support plate shovels up a heavier gear, a large frictional force will be formed between the L-shaped support plate and the bottom end of the gear. As a result, the service life of the L-shaped support plate will be greatly reduced in the form of hard friction, and the L-shaped support plate is prone to deformation and other situations, resulting in damage, which is not conducive to long-term use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hoisting fixture for bevel gear processing to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A hoisting fixture for bevel gear processing includes a mounting column, a lifting ring is fixed at the upper end of the mounting column, and further includes an inner support mechanism for internally supporting and fixing the bevel gear during hoisting, and the inner support mechanism is located outside the mounting column;

[0007] The inner support mechanism includes a plurality of sliding grooves opened on the side wall of the mounting column, the plurality of sliding grooves are distributed around the center of the mounting column, a sliding seat is slidably installed in the sliding groove, a counterweight collar is fixed between the plurality of sliding seats, a fixed ring is arranged below the sliding groove, the fixed ring is fixedly connected with the mounting column, a base is fixed at the bottom end of the mounting column, a plurality of fixed sleeves are fixedly arranged around the bottom end of the base, a sliding plate is slidably installed in the fixed sleeve, an inner support plate is fixed at the upper end of the sliding plate, a top plate is rotatably installed between the inner support plate and the sliding seat, and a support assembly is arranged at the bottom end of the sliding plate for supporting the bottom end of the bevel gear after the bevel gear is internally supported and fixed.

[0008] Preferably: the supporting assembly includes a fixed frame arranged at the bottom end of the sliding plate, a lower wedge block is slidably installed in the fixed frame at one end away from the base, a compression spring is connected between the lower wedge block and the fixed frame, a connecting frame is fixed to the end of the lower wedge block away from the base, a supporting plate is slidably installed in the connecting frame, the supporting plate is L-shaped, a plurality of contraction columns are installed between the upper end of the support plate and the connecting frame, a tension spring is provided on the outside of the contraction column, the end of the support plate away from the base is arc-shaped, and a driving assembly for driving the support plate to move the support toward the bottom end of the bevel gear is provided on the side of the lower wedge block close to the base.

[0009] Preferably: the driving assembly includes an upper wedge block slidably installed in the fixed frame near one end of the base, a pressing block is fixed to the bottom end of the upper wedge block, the pressing block is slidably connected to the fixed frame, a plurality of telescopic columns are provided between the upper end of the upper wedge block and the fixed frame, a counterweight block is fixed to the upper end of the upper wedge block, and the lower wedge block slidably cooperates with the upper wedge block.

[0010] Preferably, a ball is rotatably mounted between the sliding seat and the sliding groove.

[0011] Preferably: a plurality of telescopic rods are installed around the fixing ring and the counterweight ring.

[0012] Preferably: a rubber pad is installed at the end of the inner support plate, and a handle is fixed at the upper end of the counterweight ring.

[0013] Compared with the prior art, the beneficial effects are as follows:

[0014] The device is placed in the inner diameter of the bevel gear, and then the counterweight ring in the inner support mechanism is driven to move downward, driving multiple top plates to drive multiple inner support plates to approach the inner wall of the bevel gear to support its inner wall, and then the lifting ring on the upper end of the mounting column is lifted by the lifting equipment, and then the bevel gear is lifted upward. After the bevel gear is off the ground, the bottom end of the bevel gear is supported by the support assembly to reduce the shaking of the bevel gear during lifting and improve the stability. The delayed triggering characteristic of the support plate is utilized to reduce the deformation of the support plate caused by the hard friction between the support plate and the bottom end of the gear, thereby improving the service life of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a spatial stereogram of a bevel gear processing and hoisting fixture described in the utility model;

[0017] Figure 2It is a structural cross-sectional view inside the inner support mechanism of a hoisting fixture for bevel gear processing described in the present utility model;

[0018] Figure 3 is Figure 2 a partial enlarged view of the position A in

[0019] Figure 4 is Figure 2 a partial enlarged view of the position B in

[0020] The description of the reference numerals is as follows:

[0021] 100, mounting column; 201, chute; 202, sliding seat; 203, ball; 204, top plate; 205, counterweight collar; 206, fixing ring; 207, telescopic rod; 208, base; 209, fixing sleeve; 210, inner support plate; 211, sliding plate; 212, fixing frame; 213, upper wedge block; 214, counterweight; 215, telescopic column; 216, pressing block; 217, lower wedge block; 218, connecting frame; 219, support plate; 220, retractable column; 300, lifting ring. Detailed implementation manners

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounting", "connecting" and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] The present utility model will be further described below with reference to the drawings:

[0024] As Figures 1-4 shown, a hoisting fixture for bevel gear processing includes a mounting column 100, a lifting ring 300 is fixed at the upper end of the mounting column 100, and further includes an inner support mechanism for internally supporting and fixing the bevel gear during hoisting, and the inner support mechanism is located outside the mounting column 100.

[0025] In this embodiment, the internal support mechanism includes a plurality of slide grooves 201 provided on the side wall of the mounting column 100, the plurality of slide grooves 201 are distributed around the center of the mounting column 100, a sliding seat 202 is slidably installed in the slide groove 201, a ball bearing 203 is rotatably installed between the sliding seat 202 and the slide groove 201, a counterweight ring 205 is fixed between the plurality of sliding seats 202, a fixing ring 206 is provided below the slide groove 201, the fixing ring 206 is fixedly connected to the mounting column 100, and the fixing ring 206 is fixedly connected to the mounting column 100. A plurality of telescopic rods 207 are installed around the counterweight rings 205, a base 208 is fixed to the bottom end of the mounting column 100, a plurality of fixed sleeves 209 are fixed around the bottom end of the base 208, a sliding plate 211 is slidably installed in the fixed sleeve 209, an inner support plate 210 is fixed to the upper end of the sliding plate 211, a top plate 204 is rotatably installed between the inner support plate 210 and the sliding seat 202, and a supporting assembly is provided at the bottom end of the sliding plate 211 for supporting the bottom end of the bevel gear after the bevel gear is fixed with the inner support.

[0026] The supporting assembly includes a fixed frame 212 arranged at the bottom end of the sliding plate 211, a lower wedge block 217 is slidably installed in the fixed frame 212 at the end away from the base 208, a compression spring is connected between the lower wedge block 217 and the fixed frame 212, a connecting frame 218 is fixed to the end of the lower wedge block 217 away from the base 208, a supporting plate 219 is slidably installed in the connecting frame 218, the supporting plate 219 is L-shaped, a plurality of contraction columns 220 are installed between the upper end of the supporting plate 219 and the connecting frame 218, a tension spring is provided on the outer side of the contraction column 220, the end of the supporting plate 219 away from the base 208 is arc-shaped, and a driving assembly for driving the supporting plate 219 to move toward the bottom end of the bevel gear is provided on the side of the lower wedge block 217 close to the base 208.

[0027] The driving assembly includes an upper wedge block 213 slidably mounted in a fixed frame 212 near one end of the base 208, a pressing block 216 is fixed to the bottom end of the upper wedge block 213, and the pressing block 216 is slidably connected to the fixed frame 212. A plurality of telescopic columns 215 are arranged between the upper end of the upper wedge block 213 and the fixed frame 212, a counterweight block 214 is fixed to the upper end of the upper wedge block 213, and a lower wedge block 217 is slidably matched with the upper wedge block 213. A rubber pad is installed at the end of the inner support plate 210, and a handle is fixed to the upper end of the counterweight ring 205. The device is placed in the inner diameter of the bevel gear, and then the counterweight ring in the inner support mechanism is driven. 205 moves downward, driving multiple top plates 204 to drive multiple inner support plates 210 to approach the inner wall of the bevel gear to support its inner wall, and then the lifting ring 300 on the upper end of the mounting column 100 is lifted by the lifting equipment, and then the bevel gear is lifted upward. After the bevel gear is off the ground, the bottom end of the bevel gear is supported by the support assembly to reduce the shaking of the bevel gear during lifting and improve the stability. The delayed triggering feature of the support plate 219 is utilized to reduce the hard friction between the support plate 219 and the bottom end of the gear, which causes deformation of the support plate 219 and the like, thereby improving the service life of the support plate 219.

[0028] Working principle: First, place the installation column 100 inside the inner diameter of the bevel gear to be lifted. Then, release the lifting of the counterweight collar 205, so that the counterweight collar 205 moves downward by its own weight, and further drives multiple top plates 204 to drive multiple inner support plates 210 to move towards the inner wall of the bevel gear to internally support it. By using the limiting effect of multiple telescopic rods 207 between the counterweight collar 205 and the fixed ring 206, the stability of the movement of the counterweight collar 205 is improved.

[0029] After the bevel gear is internally supported and fixed, lift the lifting ring 300 upward through a lifting device, and then drive the installation column 100 to be lifted upward, driving the bevel gear in the internal support to be lifted upward. After the bevel gear is separated from the ground contact, use the weight of the counterweight block 214 to drive the upper wedge block 213 to move downward. By using the mutual extrusion between the upper wedge block 213 and the lower wedge block 217, drive the upper wedge block 213 to drive the lower wedge block 217 to move towards one end away from the base 208, and then drive the support plate 219 in the connecting frame 218 to move close to the bottom end of the bevel gear.

[0030] When the support plate 219 contacts the bottom end of the bevel gear, there is mutual extrusion between the bottom end of the bevel gear and the support plate 219, which prompts the support plate 219 to move downward, so that the support plate 219 moves to directly below the bevel gear. Subsequently, the continuous movement of the lower wedge block 217 drives the continuous movement of the support plate 219, and then the support plate 219 supports the bottom end of the bevel gear upward, reducing the shaking of the bevel gear during lifting and improving the stability. By using the characteristic of delayed triggering of the support plate 219, the phenomenon of deformation of the support plate 219 caused by hard friction between the support plate 219 and the bottom end of the gear is reduced, and the service life of the support plate 219 is improved.

[0031] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A hoisting fixture for bevel gear machining, comprising a mounting column (100), wherein a lifting ring (300) is fixed to the upper end of the mounting column (100), and it is characterized in that: It further includes an inner support mechanism for internally supporting and fixing the bevel gear during hoisting, and the inner support mechanism is located outside the mounting column (100); The inner support mechanism includes a plurality of sliding grooves (201) opened on the side wall of the mounting column (100). The plurality of sliding grooves (201) are distributed around the center of the mounting column (100). A sliding seat (202) is slidably installed in the sliding groove (201). A counterweight collar (205) is fixed between the plurality of sliding seats (202). A fixed ring (206) is provided below the sliding groove (201). The fixed ring (206) is fixedly connected to the mounting column (100). A base (208) is fixed to the bottom end of the mounting column (100). A plurality of fixed sleeves (209) are fixedly arranged around the bottom end of the base (208). A sliding plate (211) is slidably installed in the fixed sleeve (209). An inner support plate (210) is fixed to the upper end of the sliding plate (211). A top plate (204) is rotatably installed between the inner support plate (210) and the sliding seat (202). A support assembly is provided at the bottom end of the sliding plate (211) for supporting the bottom end of the bevel gear after the bevel gear is internally supported and fixed.

2. The hoisting fixture for bevel gear machining according to claim 1, wherein: The support assembly includes a fixed frame (212) provided at the bottom end of the sliding plate (211). A lower wedge block (217) is slidably installed at one end of the fixed frame (212) away from the base (208). A compression spring is connected between the lower wedge block (217) and the fixed frame (212). A connecting frame (218) is fixed to the end of the lower wedge block (217) away from the base (208). A support plate (219) is slidably installed in the connecting frame (218). The support plate (219) is L-shaped. A plurality of retractable columns (220) are installed between the upper end of the support plate (219) and the connecting frame (218). A tension spring is provided outside the retractable column (220). The end of the support plate (219) away from the base (208) is arc-shaped. A driving assembly is provided on one side of the lower wedge block (217) close to the base (208) for driving the support plate (219) to move towards the bottom end of the bevel gear for support.

3. The hoisting fixture for bevel gear machining according to claim 2, characterized in that: The driving assembly includes an upper wedge block (213) slidably installed at one end of the fixed frame (212) close to the base (208). A pressing block (216) is fixed to the bottom end of the upper wedge block (213). The pressing block (216) is slidably connected to the fixed frame (212). A plurality of telescopic columns (215) are provided between the upper end of the upper wedge block (213) and the fixed frame (212). A counterweight block (214) is fixed to the upper end of the upper wedge block (213). The lower wedge block (217) is in sliding fit with the upper wedge block (213).

4. The hoisting fixture for bevel gear machining according to claim 3, characterized in that: A ball (203) is rotatably installed between the sliding seat (202) and the sliding groove (201).

5. The hoisting fixture for bevel gear machining according to claim 4, wherein: A plurality of telescopic rods (207) are installed around between the fixed ring (206) and the counterweight collar (205).

6. The hoisting fixture for bevel gear machining according to claim 5, wherein: A rubber pad is installed at the end of the inner support plate (210), and a handle is fixed to the upper end of the counterweight collar (205).

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