Screw meshing instrument

By designing the support base and rotor support assembly of the screw engagement instrument, the time-consuming and labor-intensive problem of rotor engagement inspection of screw compressors is solved, realizing efficient and accurate measurement and adjustment of engagement status, which is applicable to various models.

CN223678817UActive Publication Date: 2025-12-16ZHEJIANG DINGSHENG PETROCHEMICAL ENG CO LTD
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Patent Information

Application Number
CN202520079903.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2025-12-16
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

The existing screw compressor rotor meshing inspection requires disassembling and assembling the rotor, which is time-consuming, labor-intensive, and may damage the equipment. It is also not efficient to measure meshing clearance and angle.

Method used

A screw engagement device was designed, comprising a support base, a rotor support assembly, and a pin assembly. The rotor is supported and adjusted via a slide rail and a transmission slider. Combined with the bearing support and pin structure, it supports the simulation and adjustment of the rotor engagement state.

Benefits of technology

It enables convenient rotor meshing status inspection and clearance measurement, avoids equipment damage, improves measurement accuracy and ease of operation, and is suitable for various machine models.

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Abstract

The utility model discloses a screw meshing instrument, and relates to the related technical field of screw machines. The rotor supporting device comprises a supporting base and a plurality of rotor supporting assemblies, the upper surface of the supporting base is fixedly connected with a first sliding rail, a second sliding rail and a third sliding rail through bolts, the lower surface of the supporting base is evenly and fixedly connected with a plurality of heavy ground feet, and transmission sliding blocks are arranged in the first sliding rail, the second sliding rail and the third sliding rail in a sliding mode. Wherein two rotor supporting assemblies are fixedly installed on the surface of the transmission sliding block through bolts, the other rotor supporting assembly is fixedly installed on the upper surface of the supporting base through bolts, the sizes of the rotor supporting assemblies are different, and one side face of each rotor supporting assembly is fixedly connected with an ejector pin assembly. According to the utility model, the three frames with different heights are arranged, so that the degree of freedom of the screw meshing instrument is increased, the screw meshing instrument is suitable for screws with different lengths and different diameters, the operation time and the use of manpower are greatly reduced, and the maintenance efficiency and the maintenance precision of equipment are improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to screw rod machine related technical field, and particularly relates to a screw rod meshing instrument. BACKGROUND

[0002] The screw rod meshing instrument is a kind of gauge type for measuring screw rod meshing clearance and meshing angle, it is mainly used for the measurement and inspection of meshing transmission mechanism such as gear, worm, rack and screw rod, by measuring gear pitch and tooth number, meshing angle and meshing clearance and other parameters are calculated, so as to judge the quality and precision of meshing gear (or screw rod).

[0003] At present, the inspection and measurement of screw rod compressor on rotor meshing can only be carried out by being loaded into shell and being reloaded bearing at both ends, once there is abnormal problem, rotor is removed, and repeatedly disassembling rotor not only is time-consuming and laborious, but also can cause unnecessary damage to equipment itself or bearing.For this reason, the utility model provides a screw rod meshing instrument to solve the above technical problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of screw rod meshing instruments, and the specific structure design of support base, rotor support assembly and ejector pin assembly solves the problems in the above background technology.

[0005] To solve the above technical problems, the utility model is implemented by the following technical solutions: the utility model is a kind of screw rod meshing instrument, including support base and several rotor support assemblies, the upper surface of the support base is fixedly connected with first slide rail, second slide rail and third slide rail by bolt, the size of the first slide rail, second slide rail and third slide rail is different, the lower surface of the support base is uniformly fixedly connected with several heavy-duty foots;Transmission sliding block is arranged in the first slide rail, second slide rail and third slide rail, wherein two rotor support assemblies are fixedly installed on the surface of transmission sliding block by bolt, wherein another rotor support assembly is fixedly installed on the upper surface of support base by bolt, the size of the rotor support assembly is different, and the one side of the rotor support assembly is fixedly connected with ejector pin assembly.

[0006] The utility model is further provided as, the rotor support assembly includes up-down adjusting small shaft, the up-down adjusting small shaft middle position is provided with rolling bearing, and the both ends of the up-down adjusting small shaft are fixedly connected with rotor support seat by bolt;The one side of the rotor support seat is fixedly connected with rotor support seat baffle, the lower end of the rotor support seat baffle is threadedly cooperated with long screw rod, and the peripheral surface of the long screw rod is threadedly cooperated with nut.

[0007] The utility model further sets up, the rotor support seat upper surface symmetry has two bearing support small axle, two rotor support seat between installation with bearing support small axle one to one corresponding thrust bearing, rotor support seat lower surface fixedly connected with rotor support frame, rotor support frame lower surface fixedly connected with triangle inclined strut, rotor support frame one side installation has plane bearing, long screw rod and plane bearing are adapted.

[0008] The utility model further sets up, the needle assembly includes the thimble, thimble peripheral surface fixedly connected with thimble locking handle, thimble one side fixedly connected with thimble adjusting hand wheel, rotor support frame one side passes through bolt fixedly connected with thimble vertical bracket, thimble vertical bracket is provided with thimble horizontal bracket, thimble fixedly connected on thimble horizontal bracket upper surface.

[0009] The utility model has following beneficial effect: 1, the utility model discloses a base support and auxiliary center distance adjusting mechanism are set up to realize the design of rotor working condition simulation, both the meshing state and the clearance when checking and measuring the rotor working state are convenient, and the requirement of adjusting the rotor meshing clearance is satisfied, and the rotor maintenance work of similar different models can be done.

[0010] 2, the utility model discloses a bearing as the support, can be supported in rotor bearing part more preferably, does not damage the rotor surface while bearing the force, and also can guarantee the precision work normally.

[0011] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. DRAWINGS

[0012] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0013] Figure 1 It is a structural schematic diagram of a screw rod engagement instrument.

[0014] Figure 2 It is a structural schematic diagram of the rotor support assembly in the utility model.

[0015] Figure 3 It is a structural schematic diagram of the needle assembly in the utility model.

[0016] Figure 4 It is another angle structural schematic diagram of the needle assembly in the utility model.

[0017] The components represented by the reference numerals in the drawings are listed as follows:

[0018] 1-support base, 2-rotor support assembly, 201-up and down adjusting small shaft, 202-rolling bearing, 203-rotor support seat, 204-rotor support seat baffle, 205-long screw rod, 206-bearing support small shaft, 207-thrust bearing, 208-rotor support, 209-triangular inclined strut, 210-flat bearing, 3-first sliding rail, 4-second sliding rail, 5-third sliding rail, 6-heavy foot, 7-thimble assembly, 701-thimble, 702-thimble locking handle, 703-thimble adjusting hand wheel, 704-thimble vertical bracket, 705-thimble horizontal bracket. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Embodiment one

[0021] Please refer to Figures 1-4 The utility model discloses a screw engagement instrument, including support base 1 and a plurality of rotor support assemblies 2, the upper surface of support base 1 is fixedly connected with first sliding rail 3, second sliding rail 4 and third sliding rail 5 through bolt, the size of first sliding rail 3, second sliding rail 4 and third sliding rail 5 is different, the design size of first sliding rail 3 is 3000mm*600mm*60mm, the design size of second sliding rail 4 is 2000mm*600mm*60mm, the design size of third sliding rail 5 is 900mm*150mm*60mm, the lower surface of support base 1 is uniformly connected with a plurality of heavy foot 6, and the heavy foot 6 solves the inclination problem of the tilt from the uneven ground to the upper rotor.

[0022] Further, the first sliding rail 3, the second sliding rail 4 and the third sliding rail 5 are slidably provided with transmission sliding blocks inside, wherein the two rotor support assemblies 2 are fixedly installed on the surface of the transmission sliding block through bolts, and the other rotor support assembly 2 is fixedly installed on the upper surface of the support base 1 through bolts, the rotor support assemblies 2 are different in size, the specifications of the first sliding rail 3 and the third sliding rail 5 are 740mm*600mm*60mm, the specifications of the rotor support assembly 2 installed on the second sliding rail 4 are 800mm*600mm*60mm, and the specifications of the rotor support assembly 2 directly installed on the base 1 are 860mm*600mm*60mm, and the rotor support assembly 2 is fixedly connected with the thimble assembly 7 on one side.

[0023] Further, the rotor support assembly 2 comprises an up-down adjusting small shaft 201, a rolling bearing 202 is arranged at the middle position of the up-down adjusting small shaft 201, the rolling bearing 202 supports the rotation to make the up-down adjusting more lubricated, and rotor support seats 203 are fixedly connected to the two ends of the up-down adjusting small shaft 201 through bolts; a rotor support seat baffle 204 is fixedly connected to one side surface of the rotor support seat 203, a long screw rod 205 is threadedly connected to the lower end of the rotor support seat baffle 204, and a nut is threadedly connected to the circumferential surface of the long screw rod 205.

[0024] Further, two bearing support small shafts 206 are symmetrically arranged on the upper surfaces of the rotor support seats 203, thrust bearings 207 corresponding to the bearing support small shafts 206 are arranged between the two rotor support seats 203, and rotor supports 208 are fixedly connected to the lower surfaces of the rotor support seats 203; a triangular inclined support 209 is fixedly connected to the lower surface of the rotor support 208, a plane bearing 210 is arranged on one side surface of the rotor support 208, and the long screw rod 205 is matched with the plane bearing 210.

[0025] Further, the top pin assembly 7 comprises a top pin 701, a top pin locking handle 702 is fixedly connected to the circumferential surface of the top pin 701, and a top pin adjusting hand wheel 703 is fixedly connected to one side surface of the top pin 701; a top pin vertical bracket 704 is fixedly connected to one side surface of the rotor support 208 through a bolt, a top pin horizontal bracket 705 is arranged on the top pin vertical bracket 704, and the top pin 701 is fixedly connected to the upper surface of the top pin horizontal bracket 705.

[0026] The operation process of the embodiment is as follows: the transmission sliding block is fastened and fixed on the sliding rail through a bolt, the rotor support assembly 2 can be pushed after the bolt is loosened, and the top pin assembly 7 is driven to move together; the first sliding rail 3, the second sliding rail 4 and the third sliding rail 5 are arranged, the applicability of the screw engagement instrument is increased, the convenience of operation and maintenance is improved, the length of the rotor is adjusted by loosening and pushing the fixing bolt of the rotor support assembly 2 back and forth, the adjustable heavy foot 7 (the adjustable range is 0mm-200mm) effectively solves the problem that the inclination of the upper rotor is caused by the unevenness of the ground, and the stability and accuracy of the screw engagement instrument are improved; the adjustment on the horizontal plane is realized by loosening and tightening the transmission sliding block, the vertical adjustment of the rotor support is realized by arranging the vertical sliding rail on the rotor support 208, and the precise adjustment of the working engagement state of various rotors is finally realized by the mutual cooperation of the adjustment of the sliding rails.

[0027] First loosen the nut at both ends of the up and down adjusting small shaft 201, then adjust the nut on the long screw rod 205, after reaching the required height, lock the nut at both ends of the up and down adjusting small shaft 201; the bearing support small shaft 206 is fixed on the rotor support base 203 through bolts, the middle part is installed with a thrust bearing 207, used for supporting the rotating long screw rod 205, and can bear a larger weight, the bottom of the rotor support 208 is welded with four triangular braces 209, used for further fixing the body; the screw rod rotor is supported by setting the thrust bearing 207, so that the rotor can smoothly and stably move on the bearing, and the measurement accuracy is increased; by setting the triangular braces 209, the overall weight and stability of the support are increased.

[0028] The thimble 701 is arranged on the thimble horizontal bracket 705, the thimble horizontal bracket 705 is fixed on the thimble vertical bracket 704 through bolt cooperation, and then is fixed on the rotor support assembly 2 to move together with the rotor support assembly 2, the thimble 701 is arranged to improve the accuracy of the rotor during rotation measurement, and the detachable structure is arranged, which provides convenience for future maintenance.

[0029] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The preferred embodiments of the above disclosed application are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A screw meshing instrument, comprising a support base (1) and a plurality of rotor support assemblies (2), characterized in that: the upper surface of the support base (1) is fixedly connected with a first slide rail (3), a second slide rail (4) and a third slide rail (5) by bolts, the first slide rail (3), the second slide rail (4) and the third slide rail (5) are different in size, and the lower surface of the support base (1) is uniformly fixedly connected with a plurality of heavy-duty feet (6); the first slide rail (3), the second slide rail (4) and the third slide rail (5) are internally slidably provided with transmission sliding blocks, two of the rotor support assemblies (2) are fixedly installed on the surface of the transmission sliding blocks by bolts, and the other rotor support assembly (2) is fixedly installed on the upper surface of the support base (1) by bolts, the rotor support assemblies (2) are different in size, and one side of each rotor support assembly (2) is fixedly connected with a thimble assembly (7).

2. A screw meshing instrument according to claim 1, wherein, The rotor support assembly (2) comprises an up-down adjusting small shaft (201), a rolling bearing (202) is arranged at the middle position of the up-down adjusting small shaft (201), and rotor support seats (203) are fixedly connected to the two ends of the up-down adjusting small shaft (201) by bolts.

3. A screw meshing instrument according to claim 2, wherein, One side of the rotor support seat (203) is fixedly connected with a rotor support seat baffle (204), a long screw rod (205) is threadedly connected to the lower end of the rotor support seat baffle (204), and a nut is threadedly connected to the circumferential surface of the long screw rod (205).

4. A screw meshing instrument according to claim 3, wherein, The upper surface of the rotor support seat (203) is symmetrically provided with two bearing support small shafts (206), a thrust bearing (207) corresponding to each bearing support small shaft (206) is installed between the two rotor support seats (203), and a rotor support frame (208) is fixedly connected to the lower surface of the rotor support seat (203).

5. A screw meshing instrument according to claim 4, wherein, The lower surface of the rotor support frame (208) is fixedly connected with a triangular inclined strut (209), a plane bearing (210) is installed on one side of the rotor support frame (208), and the long screw rod (205) is adapted to the plane bearing (210).

6. A screw meshing instrument according to claim 5, wherein, The thimble assembly (7) comprises a thimble (701), a thimble locking handle (702) is fixedly connected to the circumferential surface of the thimble (701), and a thimble adjusting hand wheel (703) is fixedly connected to one side of the thimble (701).

7. A screw meshing instrument according to claim 6, wherein, One side of the rotor support frame (208) is fixedly connected with a thimble vertical bracket (704), a thimble horizontal bracket (705) is arranged on the thimble vertical bracket (704), and the thimble (701) is fixedly connected to the upper surface of the thimble horizontal bracket (705).