Roundness correction positioning device for drying machine roller

Abstract

A drying machine roller roundness correction positioning device comprises a two-way lead screw, a first supporting wheel, a second supporting wheel and a plurality of supporting connecting rod mechanisms, a through hole in the center of the first supporting wheel is a threaded hole, forward threads of the two-way lead screw are sleeved with the threaded hole, and reverse threads of the two-way lead screw are sleeved with the through hole in the center of the second supporting wheel; a plurality of support connecting mechanisms are connected between the outer side surfaces of the support wheel A and the support wheel B at equal intervals in the circumferential direction; according to the device, the two-way lead screw is adopted to drive the two supporting wheels to move oppositely or oppositely, then the supporting connecting rod mechanisms evenly distributed between the two supporting wheels are driven to act synchronously, the roller assemblies at the outer ends of the supporting connecting rod mechanisms can synchronously and radially abut against the inner surface of the roller, the roller is gradually pushed and supported to be in a circular state, and the device is convenient to operate and has multiple supporting points; the device can be stably supported on the inner surface of the roller with high strength, the roller roundness correction effect is improved, and the follow-up machining quality of the roller is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of drying machine drum processing, in particular to a drying machine drum roundness calibration and positioning device. Background Art

[0002] The drum of the dryer is usually made of metal materials, mainly including stainless steel plates, galvanized plates, aluminum alloy plates, etc. After the plate materials of the dryer drum are produced and processed, the drum is flattened by its own gravity due to its large diameter and thin thickness. The overall shape is oval, which does not meet the production requirements of a circular drum, and it is impossible to install spiral blades and lifting plates inside it later. At present, a support is mainly set inside it, and a push rod is set on the support to push and support the oval drum upward to calibrate and position it so that it is in a circular state. This method is cumbersome to operate and the calibration effect is not good, and needs to be improved. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a drying machine drum circular alignment and positioning device.

[0004] The technical scheme of the utility model is: a drying machine drum roundness positioning device, comprising a bidirectional screw rod, a support wheel A, a support wheel B and a plurality of support connecting rod mechanisms, the support wheel A and the support wheel B have the same size and structure; the through hole in the center of the support wheel A is a threaded hole, the threaded hole is sleeved on the positive thread of the bidirectional screw rod, the through hole in the center of the support wheel B is a threaded hole, the threaded hole is sleeved on the reverse thread of the bidirectional screw rod, and a certain distance is provided between the positive thread and the reverse thread;

[0005] The multiple supporting link mechanisms are connected between the outer side surfaces of support wheel A and support wheel B at equal intervals along the circumferential direction. The supporting link mechanisms include link A and link B of the same length. One end of link A is hinged to the outer side surface of support wheel A, and one end of link B is hinged to the outer side surface of support wheel B. The other ends of link A and link B are hinged together through a hinge shaft, and the hinge point is located at the center position of support wheel A and support wheel B.

[0006] Preferably, a roller assembly is provided at the connection between connecting rod A and connecting rod B, and the roller assembly includes a roller seat and a roller installed in the roller seat, the side of the roller extends out of the roller seat, and supports are provided at both ends of the roller support, and the two supports are connected to the two ends of the hinge shaft.

[0007] Preferably, there are two rollers in the roller seat, and the two rollers are located at two ends of the roller seat.

[0008] Preferably, the connecting rod B comprises a rod body A and a rod body B arranged side by side, a certain distance is provided between the two rod bodies, and the connecting rod A is hinged between the rod body A and the rod body B.

[0009] Preferably, the supporting wheel armor comprises a central sleeve and an outer rim, and a plurality of supporting rods are evenly distributed between the sleeve and the outer rim.

[0010] Preferably, the outer end of the bidirectional screw rod is provided with a hexagonal joint, and a limit block can be provided at the inner end of the hexagonal joint.

[0011] The beneficial technical effect of the utility model is that the utility model adopts a bidirectional screw to drive the two support wheels to move toward or oppositely, and then drives the support connecting rod mechanism evenly distributed between the two support wheels to move synchronously, and the roller assembly at the outer end of the support connecting rod mechanism can be synchronously radially pressed on the inner surface of the drum, gradually pushing it to a circular state. The device is easy to operate and has many support points. It can be stably supported on the inner surface of the drum with high strength, thereby improving the drum rounding and positioning effect and ensuring the subsequent processing quality of the drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 yes Figure 1 A partial enlarged view of

[0014] Figure 3 A side structural schematic diagram of the utility model;

[0015] Figure 4 It is a main structural schematic diagram of the utility model;

[0016] Figure 5 It is a structural schematic diagram of the utility model in which the suit is supported in a drum.

[0017] In the figure, 11. bidirectional screw, 111. forward thread, 112. reverse thread, 113. hexagonal joint, 12. support wheel A, 13. support wheel B, 141. connecting rod A, 142. connecting rod B, 143. articulated shaft, 15. roller assembly, 151. roller seat, 152. roller, 153. support, 161. bushing, 162. outer wheel rim, 163. support rod, 17. roller. Implementation

[0018] Example 1, see the attached specification Figure 1-5 , a drying machine drum 17 roundness alignment positioning device, comprising a bidirectional screw rod 11, a supporting wheel A 12, a supporting wheel B 13 and a plurality of supporting connecting rod mechanisms;

[0019] The through hole in the center of the support wheel A 12 is a threaded hole, which is sleeved on the forward thread 111 of the bidirectional screw rod 11. The through hole in the center of the support wheel B 13 is a threaded hole, which is sleeved on the reverse thread 112 of the bidirectional screw rod 11. The forward thread 111 and the reverse thread 112 are the same length, so rotating the bidirectional screw rod 11 can drive the two support wheels to move toward or in the opposite direction.

[0020] The multiple supporting link mechanisms are connected between the outer side surfaces of the support wheel A 12 and the support wheel B 13 at equal intervals along the circumferential direction, and the supporting link mechanisms include a link A 141 and a link B 142 of the same length, one end of the link A 141 is hinged to the outer side surface of the support wheel A 12, one end of the link B 142 is hinged to the outer side surface of the support wheel B 13, and the other ends of the link A 141 and the link B 142 are hinged together through a hinge shaft 143. When the support wheel A 12 and the support wheel B 13 move toward each other, the link A 141 and the link B 142 are driven to swing toward each other, and the hinges at the outer ends of the two links move radially outward. When the support wheel A 12 and the support wheel B 13 move in opposite directions, the hinges at the outer ends of the two links move radially inward.

[0021] A roller assembly 15 is provided at the connection between the connecting rod A 141 and the connecting rod B 142, and the roller assembly 15 includes a roller seat 151 and a roller 152 installed in the roller seat 151. Both ends of the roller 152 support 153 are provided with supports 153, and the two supports 153 are connected to the two ends of the hinge shaft 143. There are two rollers 152 in the roller seat 151, and the two rollers 152 are located at the two ends of the roller seat 151. When the hinge at the outer end of the connecting rod A 141 and the connecting rod B 142 moves outward in the radial direction, the roller assembly 15 moves outward accordingly and gradually presses against the inner side surface of the drum 17. The rollers 152 at both ends of the roller assembly 15 are supported on the inner surface of the drum 17 along the circumferential direction, and the drum 17 in an elliptical state is gradually pushed and supported to be a round drum 17.

[0022] The connecting rod B 142 includes a rod body A and a rod body B arranged side by side, and the connecting rod A 141 is hinged between the rod body A and the rod body B. The double-rod structure has higher stability and supporting strength, which is conducive to ensuring the stability of the connecting rod supporting the roller 17.

[0023] The support wheel 12 includes a central sleeve 161 and an outer wheel 162, and a plurality of support rods 163 are evenly distributed between the sleeve 161 and the outer wheel 162. The support wheel structure can save raw materials and help reduce its own weight, making it easy to move and operate. The outer end of the bidirectional screw rod 11 is provided with a hexagonal joint 113, through which the bidirectional screw rod 11 is driven to rotate.

[0024] The use process of the utility model is as follows: the device is placed in the drum 17 in an elliptical state, and then the bidirectional screw 11 is driven to rotate through the hexagonal joint 113, and the bidirectional screw 11 drives the two supporting wheels to move toward each other, driving the connecting rod A 141 and the connecting rod B 142 evenly distributed between the two supporting wheels to swing toward each other, and the roller assembly 15 at the hinge of the two connecting rods will move radially outward accordingly, and the roller assembly 15 distributed along the circumference will gradually approach and press against the inner side surface of the drum 17, pushing and supporting the drum 17 in the elliptical state to the state of a circular drum 17, and then assembling construction of other components is carried out inside the circular drum 17.

Claims

1. A drying machine drum rounding and positioning device, characterized in that: It includes a bidirectional screw rod, a supporting wheel A, a supporting wheel B and a plurality of supporting connecting rod mechanisms; The through hole in the center of the support wheel A is a threaded hole, which is sleeved on the positive thread of the bidirectional screw rod; the through hole in the center of the support wheel B is a threaded hole, which is sleeved on the reverse thread of the bidirectional screw rod; The multiple supporting link mechanisms are connected between the outer side surfaces of support wheel A and support wheel B at equal intervals along the circumferential direction. The supporting link mechanisms include link A and link B of the same length. One end of link A is hinged to the outer side surface of support wheel A, and one end of link B is hinged to the outer side surface of support wheel B. The other ends of link A and link B are hinged together through a hinge shaft.

2. A drying machine drum roundness alignment and positioning device according to claim 1, characterized in that: A roller assembly is provided at the connection between the connecting rod A and the connecting rod B. The roller assembly includes a roller seat and a roller installed in the roller seat. Supports are provided at both ends of the roller support, and the two supports are connected to the two ends of the hinge shaft.

3. A drying machine drum roundness alignment and positioning device according to claim 2, characterized in that: There are two rollers in the roller seat, and the two rollers are located at two ends of the roller seat.

4. A drying machine drum roundness alignment and positioning device according to claim 1, characterized in that: The connecting rod B comprises a rod body A and a rod body B arranged side by side, and the connecting rod A is hinged between the rod body A and the rod body B.

5. A drying machine drum roundness alignment and positioning device according to claim 1, characterized in that: The supporting wheel armor comprises a central shaft sleeve and an outer wheel rim, and a plurality of supporting rods are evenly distributed between the shaft sleeve and the outer wheel rim.

6. A drying machine drum roundness alignment and positioning device according to claim 1, characterized in that: The outer end of the bidirectional screw rod is provided with a hexagonal joint.

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