Ball screw reverser positioning device

Abstract

The utility model provides a ball screw reverser positioning device which comprises a first rolling groove, one end of the first rolling groove is provided with a connecting assembly, the connecting assembly comprises a second rolling groove and a positioning block, a distance adjusting assembly is arranged in the second rolling groove and comprises a threaded rod and a threaded hole, and an auxiliary assembly is arranged in the first rolling groove. The auxiliary assembly comprises a sliding rod, a connecting groove and a tightening spring, the fixing assembly is arranged in the positioning block and comprises a sliding groove, a fixing spring and a fixing block, the second rolling groove is fixedly formed in the outer surface of one end of the first rolling groove, and the positioning block is fixedly connected to the outer surface of the second rolling groove. According to the ball screw reverser positioning device, the first rolling groove is movably connected with the second rolling groove, and the distance between the first rolling groove and the second rolling groove can be adjusted through the distance adjusting assembly, so that the rolling size can be adjusted according to different heavy loads, and abrasion of a reverser and blocking of balls are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball screw reverser technical field especially relates to ball screw reverser positioning device. BACKGROUND

[0002] Ball screw reverser is the key component in ball screw transmission assembly, mainly used for changing the circulation path of ball in ball screw nut, so that ball can continuously roll between screw rod and nut, thereby realizing efficient linear motion transmission.

[0003] Reverser is generally applicable to light load or medium load working condition, under heavy load condition, the contact stress between ball and reverser is large, which can easily lead to the aggravation of reverser wear, even ball jamming and other faults, thereby affecting the normal operation of ball screw.

[0004] Therefore, it is necessary to provide ball screw reverser positioning device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model provides ball screw reverser positioning device, solve the problem that reverser is under heavy load, and the problem of easy jamming and aggravation of wear.

[0006] In order to solve the above technical problems, the ball screw reverser positioning device provided by the utility model comprises: a first rolling groove, one end of the first rolling groove is provided with a connecting assembly, the connecting assembly comprises a second rolling groove and a positioning block;

[0007] A distance adjusting assembly is arranged in the second rolling groove, and the distance adjusting assembly comprises a threaded rod and a threaded hole.

[0008] An auxiliary assembly is arranged in the first rolling groove, and the auxiliary assembly comprises a sliding rod, a connecting groove and a tightening spring.

[0009] A fixing assembly is arranged in the positioning block, and the fixing assembly comprises a sliding groove, a fixing spring and a fixing block.

[0010] Preferably, the second rolling groove is fixedly installed on the outer surface of one end of the first rolling groove, and the positioning block is fixedly connected to the outer surface of the second rolling groove.

[0011] Preferably, one end of the threaded rod is movably embedded in the second rolling groove, the threaded hole is formed in the first rolling groove, and the other end of the threaded hole is threadedly embedded in the threaded hole.

[0012] Preferably, one end of the sliding rod is fixedly connected to the inner surface of the second rolling groove, the connecting groove is arranged in the interior of the first rolling groove, the other end of the sliding rod is movably embedded in the interior of the connecting groove, and the tightening spring is movably sleeved on the outer surface of the other end of the sliding rod.

[0013] Preferably, the sliding groove is arranged in the interior of the positioning block, the fixed spring is embedded in the interior of the sliding groove, and the fixed block is fixedly connected to one end of the fixed spring.

[0014] Preferably, the interior of the first rolling groove and the second rolling groove is provided with a reinforcing assembly, the reinforcing assembly comprises an embedded block, the embedded block is movably embedded in the interior of the first rolling groove and the second rolling groove, the inner surface of the embedded block is movably connected with a rolling wheel, and the upper and lower ends of the rolling wheel are fixedly connected with anti-jamming springs.

[0015] Compared with the related art, the ball screw reverser positioning device has the following advantages

[0016] Beneficial effects:

[0017] The ball screw reverser positioning device provided by the utility model has the advantages that the first rolling groove and the second rolling groove are movably connected, the distance between the first rolling groove and the second rolling groove can be adjusted through the distance adjusting assembly, the size of the rolling can be adjusted according to different heavy loads, and the abrasion of the reverser and the jamming of the ball are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic view of a first embodiment of the ball screw reverser positioning device provided by the utility model;

[0019] Figure 2 FIG. 2 is a side cross-sectional structural schematic view of the ball screw reverser positioning device provided by the utility model; Figure 1 FIG. 3 is a side cross-sectional structural schematic view of the first rolling groove, the second rolling groove and the auxiliary assembly of the ball screw reverser positioning device provided by the utility model;

[0020] Figure 3 FIG. 4 is a structural schematic view of a second embodiment of the ball screw reverser positioning device provided by the utility model. Figure 1

[0021] Figure 4 FIG. 1 is a structural schematic view of a first embodiment of the ball screw reverser positioning device provided by the utility model;

[0022] 1, the first rolling groove,

[0023] 2, the connecting assembly, 21, the second rolling groove, 22, the positioning block,

[0024] 3, the distance adjusting assembly, 31, the threaded rod, 32, the threaded hole,

[0025] ​4, auxiliary assembly, 41, sliding rod, 42, connecting groove, 43, tightening spring,

[0026] 5, fixed assembly, 51, sliding groove, 52, fixed spring, 53, fixed block,

[0027] 6, reinforcing assembly, 61, embedded block, 62, roller, 63, anti-lock spring. DETAILED DESCRIPTION

[0028] The utility model will be further described below in combination with the drawings and embodiments.

[0029] First embodiment

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 , among them, Figure 1 It is the structure diagram of first embodiment of ball screw reverser positioning device provided by the utility model, Figure 2 It is the side sectional structure diagram shown in Figure 1 , Figure 3 It is the first rolling groove, second rolling groove and auxiliary assembly side sectional connection diagram shown in Figure 1 Ball screw reverser positioning device includes: first rolling groove 1, one end of the first rolling groove 1 is provided with connecting assembly 2, the connecting assembly 2 includes second rolling groove 21 and positioning block 22;

[0031] Distance adjusting assembly 3, the distance adjusting assembly 3 is arranged in the interior of the second rolling groove 21, and the distance adjusting assembly 3 includes threaded rod 31 and threaded hole 32;

[0032] Auxiliary assembly 4, the auxiliary assembly 4 is arranged in the interior of the first rolling groove 1, and the auxiliary assembly 4 includes sliding rod 41, connecting groove 42 and tightening spring 43;

[0033] Fixed assembly 5, the fixed assembly 5 is arranged in the interior of the positioning block 22, and the fixed assembly 5 includes sliding groove 51, fixed spring 52 and fixed block 53.

[0034] The first rolling groove 1 is semicylindrical, and the surface of one end is provided with an arc-shaped groove, and the inclination of the arc-shaped groove is same with the thread angle of the surface of the screw rod, so that the ball can be rolled into the interior of the arc-shaped groove, the connecting assembly 2 is used to form the rolling way with the first rolling groove 1, to change the circulating path of the ball, the distance adjusting assembly 3 is used to adjust the distance between the first rolling groove 1 and the second rolling groove 21, to reduce the heavy load, the auxiliary assembly 4 is used to assist the fixation of the threaded rod 31, and the fixed assembly 5 is used to realize the fixation of the first rolling groove 1 and the second rolling groove 21 in the interior of the nut.

[0035] The second rolling groove 21 is fixedly installed on the outer surface of one end of the first rolling groove 1, and the positioning block 22 is fixedly connected to the outer surface of the second rolling groove 21.

[0036] The second rolling groove 21 is identical to the first rolling groove 1, in a semicylindrical shape, with an arc-shaped groove formed on one end of the surface, and two arc-shaped grooves forming a rolling track, and the positioning block 22 is fixedly connected to the outer surface of the second rolling groove 21.

[0037] One end of the threaded rod 31 is movably embedded in the interior of the second rolling groove 21, the threaded hole 32 is formed in the interior of the first rolling groove 1, and the other end of the threaded hole 32 is threadedly embedded in the interior of the threaded hole 32.

[0038] One end of the threaded rod 31 is rotatably embedded in the interior of the second rolling groove 21, and a hole is formed in the outer surface of the second rolling groove 21, and a rotating block is embedded in the interior of the hole, and the rotating block is connected to the rotating drill by embedding the rotating drill in the interior of the hole, and the rotation of the rotating drill can realize the rotation of the threaded rod 31, and a limiting block is fixedly connected to the surface of the second rolling groove 21 in which the threaded rod 31 is embedded, and the threaded rod 31 is limited by the limiting block, and the rotation of the threaded rod 31 can drive the second rolling groove 21 to move forward and backward, thereby achieving the function of adjusting the distance between the first rolling groove 1 and the second rolling groove 21.

[0039] One end of the sliding rod 41 is fixedly connected to the inner surface of the second rolling groove 21, the connecting groove 42 is formed in the interior of the first rolling groove 1, and the other end of the sliding rod 41 is movably embedded in the interior of the connecting groove 42, and the tightening spring 43 is movably sleeved on the outer surface of the other end of the sliding rod 41.

[0040] The number of the auxiliary assembly 4 is four, and every two is a group, and the two groups of auxiliary assemblies 4 are arranged in the interiors of the front and rear ends of the first rolling groove 1, and one end of the sliding rod 41 in the front and rear groups is fixedly connected to the inner surface of the first rolling groove 1 and the inner surface of the second rolling groove 21, respectively, and the two groups of connecting grooves 42 are formed in the interior of the first rolling groove 1 and the interior of the second rolling groove 21, respectively, and when the threaded rod 31 rotates, the other end of the sliding rod 41 slides in the interior of the connecting groove 42, and when it is static, the tightening spring 43 provides a pushing force to the sliding rod 41 towards the inner surface of the first rolling groove 1 or the second rolling groove 21, thereby preventing the loosening of the threaded rod 31.

[0041] The sliding groove 51 is formed in the interior of the positioning block 22, the fixed spring 52 is embedded in the interior of the sliding groove 51, and the fixed block 53 is fixedly connected to one end of the fixed spring 52.

[0042] The number of the fixed springs 52 and the fixed blocks 53 is two, one end of the two fixed blocks 53 is respectively slidably embedded in the inside of the left and right two ends of the sliding groove 51, and one end of the two fixed blocks 53 embedded in the inside of the sliding groove 51 is fixedly connected with a fixed spring 52, so that the fixed block 53 can be embedded in the inside of the nut slot under the elastic force of the fixed spring 52.

[0043] The working principle of the ball screw reverser positioning device is as follows:

[0044] First, according to the degree of the reverser under heavy load, the threaded rod 31 is rotated to be screwed with the threaded hole 32 and move forward and backward in the inside of the threaded hole 32, so as to drive the second rolling groove 21 to move, and the sliding rod 41 slides in the inside of the connecting groove 42 until the first rolling groove 1 and the second rolling groove 21 reach a proper distance, so that the ball cannot be stuck between the first rolling groove 1 and the second rolling groove 21, then the two fixed blocks 53 are pressed inward, and the first rolling groove 1 and the second rolling groove 21 are embedded into the nut slot, until the positioning block 22 is completely embedded in the inside of the nut slot, then the fixed blocks 53 are loosened, the two fixed blocks 53 are clamped in the inside of the slot, so that the reverser is fixed in the inside of the nut.

[0045] Compared with the related art, the ball screw reverser positioning device has the following advantages

[0046] Beneficial effects:

[0047] The ball screw reverser positioning device provided by the utility model has the advantages that the first rolling groove 1 and the second rolling groove 21 are movably connected, and the distance between the first rolling groove 1 and the second rolling groove 21 can be adjusted through the distance adjusting assembly 3, so that the size of the rolling can be adjusted according to different heavy loads, and the abrasion of the reverser and the sticking of the ball are reduced.

[0048] Second embodiment

[0049] Please refer to Figure 4 The ball screw reverser positioning device provided by the first embodiment of the application, and the ball screw reverser positioning device provided by the second embodiment of the application. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the implementation of the first embodiment.

[0050] Specifically, the ball screw reverser positioning device provided by the second embodiment of the application is different from the ball screw reverser positioning device provided by the first embodiment of the application in that the first rolling groove 1 and the second rolling groove 21 are provided with a reinforcing assembly 6, the reinforcing assembly 6 comprises an embedded block 61 movably embedded in the inside of the first rolling groove 1 and the second rolling groove 21, the inner surface of the embedded block 61 is movably connected with a roller 62, and the upper and lower ends of the roller 62 are fixedly connected with an anti-sticking spring 63.

[0051] The number of the reinforcing assemblies 6 is two, which are arranged in the interiors of the first and second rolling grooves 1 and 21 respectively, two embedding blocks 61 are slidingly embedded in the interiors of the first and second rolling grooves 1 and 21 respectively, two rollers 62 are rotationally connected to the inner surfaces of the two embedding blocks 61 respectively, and the upper and lower ends of the two embedding blocks 61 are fixedly connected with sliding blocks respectively, and the surfaces of each sliding block are fixedly connected with an anti-jamming spring 63.

[0052] The working principle of the ball screw reverser positioning device is as follows:

[0053] When the ball rolls into the space between the first and second rolling grooves 1 and 21, the surface of the ball is connected with the roller 62, the ball provides a pressure to the roller 62, so that the roller 62 is pressed inwardly to the embedding block 61, the anti-jamming spring 63 is compressed at the same time, and the roller 62 rotates, thereby reducing the friction of the ball.

[0054] Compared with the related art, the ball screw reverser positioning device has the following advantages

[0055] Beneficial effects are as follows:

[0056] The ball screw reverser positioning device is provided with the reinforcing assembly 6 in the interiors of the first and second rolling grooves 1 and 21, when the ball rolls into the interiors of the first and second rolling grooves 1 and 21, the roller 62 is connected to the surface of the ball, thereby converting the friction between the ball and the rolling groove into the rotating force of the roller 62, thereby reducing the friction between the ball and the rolling groove, and improving the service life of the ball.

[0057] The above is only the embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, is also included in the patent protection range of the present application.

Claims

1. Ball screw reverser positioning device, characterized in that The utility model relates to a kind of distance adjusting device, including: First rolling groove, one end of the first rolling groove is provided with connecting assembly, the connecting assembly includes second rolling groove and positioning block; Distance adjusting assembly is arranged inside the second rolling groove, and the distance adjusting assembly includes threaded rod and threaded hole; Auxiliary assembly is arranged inside the first rolling groove, and the auxiliary assembly includes sliding rod, connecting slot and tightening spring; Fixed component is arranged inside the positioning block, and the fixed component includes sliding slot, fixed spring and fixed block.

2. The ball screw reverser positioning device of claim 1, wherein, The second rolling groove is fixedly installed on the outer surface of one end of the first rolling groove, and the positioning block is fixedly connected to the outer surface of the second rolling groove.

3. The ball screw reverser positioning device of claim 1, wherein, One end of the threaded rod is movably embedded in the second rolling groove, and the threaded hole is opened in the first rolling groove, and the other end of the threaded hole is threadedly embedded in the threaded hole.

4. The ball screw reverser positioning device of claim 1, wherein, One end of the sliding rod is fixedly connected to the inner surface of the second rolling groove, the connecting slot is opened in the first rolling groove, the other end of the sliding rod is movably embedded in the connecting slot, and the tightening spring is movably sleeved on the outer surface of the other end of the sliding rod.

5. The ball screw reverser positioning device of claim 1, wherein, The sliding slot is opened in the positioning block, the fixed spring is embedded in the sliding slot, and the fixed block is fixedly connected to one end of the fixed spring.

6. The ball screw reverser positioning device of claim 1, wherein, The inner part of the first rolling groove and the second rolling groove is provided with reinforcing assembly, the reinforcing assembly includes embedded block, the embedded block is movably embedded in the inner part of the first rolling groove and the second rolling groove, the inner surface of the embedded block is movably connected with roller, and the upper and lower ends of the roller are fixedly connected with anti-jamming spring.

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